Include tls.h.

and restore r2 around call to fn.

ChangeLog.11

@@ -1352,6 +1352,11 @@
 	* sysdeps/unix/sysv/linux/mips/sys/tas.h: Add missing .mips0 at the
 	end of inline assembler code.
 
+2000-10-02  Jakub Jelinek  <jakub@redhat.com>
+
+	* sunrpc/svc_udp.c (svcudp_recv): Set msg_controllen to all
+	remaining xp_pad space.
+
 2000-10-02  Ulrich Drepper  <drepper@redhat.com>
 
 	* include/features.h [__USE_FILE_OFFSET && !__REDIRECT]: Define
@@ -9280,6 +9285,12 @@
 	syscall.
 	* sysdeps/unix/sysv/linux/mips/truncate64.c: Likewise.
 
+2000-05-30  Jakub Jelinek  <jakub@redhat.com>
+
+	* resolv/res_query.c (res_nsearch): Remove unused variable
+	root_on_list. If dots >= statp->ndots and as is querydomain
+	fails, keep searching.
+
 2000-05-30  Ulrich Drepper  <drepper@redhat.com>
 
 	* sysdeps/unix/sysv/linux/alpha/oldglob.c (__old_glob): Loose __P.
@@ -9480,6 +9491,11 @@
 	* sysdeps/i386/fpu/bits/mathinline.h: Define expm1 inline only if
 	__FAST_MATH__ is defined.
 
+2000-05-22  Jakub Jelinek  <jakub@redhat.com>
+
+	* sysdeps/i386/fpu/bits/mathinline.h (__expm1_code): Avoid using ?:
+	with omitted middle operand.
+
 2000-05-22  Andreas Jaeger  <aj@suse.de>
 
 	* math/Makefile: Add -D__FAST_MATH__ to CFLAGS-test-ifloat.c,
@@ -9718,6 +9734,11 @@
 	* manual/arith.texi (Parsing of Integers): Fix typo.
 	Closes PR libc/1744, reported by blp@gnu.org.
 
+2000-05-17  Jakub Jelinek  <jakub@redhat.com>
+
+	* inet/rcmd.c (rcmd_af): If *ahost cannot be resolved, include
+	unresolved hostname in the message.
+
 2000-05-17  Jakub Jelinek  <jakub@redhat.com>
 
 	* sysdeps/arm/bits/huge_val.h (HUGE_VAL, HUGE_VALF): Add

ChangeLog.12

@@ -7729,6 +7729,13 @@
 
 	* Versions.def [ld]: Add GLIBC_2.2.1.
 
+2001-01-10  Jakub Jelinek  <jakub@redhat.com>
+
+	* malloc/memusage.c (me): If not SUID/SGID, allow creating new
+	$MEMUSAGE_OUTPUT file.
+	* sysdeps/generic/segfault.c (segfault.c): If not SUID/SGID, allow
+	creating new $SEGFAULT_OUTPUT_NAME file.
+
 2001-01-10  H.J. Lu  <hjl@gnu.org>
 
 	* elf/dl-libc.c (do_dlopen): Call DL_STATIC_INIT for static binaries.
@@ -8130,6 +8137,11 @@
 	* sysdeps/powerpc/soft-fp/Versions: Likewise.
 	* sysdeps/sparc/sparc64/soft-fp/Versions: Likewise.
 
+2001-01-02  Jakub Jelinek  <jakub@redhat.com>
+
+	* locale/setlocale.c (setlocale): Don't allocate/free category name
+	unnecessarily.
+
 2001-01-02  Franz Sirl	<Franz.Sirl-kernel@lauterbach.com>
 
 	* sysdeps/powerpc/dl-machine.c (__process_machine_rela): Fix typo.

Makeconfig

@@ -452,12 +452,6 @@ link-libc = -Wl,-rpath-link=$(rpath-link) \
 	    $(common-objpfx)$(patsubst %,$(libtype.oS),c) $(gnulib)
 # This is how to find at build-time things that will be installed there.
 rpath-dirs = math elf dlfcn nss nis rt resolv crypt
-else
-ifneq (,$(filter aix aix%,$(config-os)))
-link-libc = $(common-objpfx)libc.a \
-	    $(common-objpfx)$(patsubst %,$(libtype.oS),c) $(gnulib)
-rpath-dirs = math dlfcn nss nis rt resolv crypt
-endif
 endif
 rpath-link = \
 $(common-objdir):$(subst $(empty) ,:,$(patsubst ../$(subdir),.,$(rpath-dirs:%=$(common-objpfx)%)))
@@ -475,13 +469,6 @@ LDFLAGS-rpath-ORIGIN = -Wl,-rpath,'$$ORIGIN'
 LDFLAGS-soname-fname = -Wl,-soname,$(@F)
 LDFLAGS-rdynamic = -rdynamic
 LDFLAGS-Bsymbolic = -Bsymbolic
-else
-ifneq (,$(filter aix aix%,$(config-os)))
-LDFLAGS-rpath-ORIGIN =
-LDFLAGS-soname-fname =
-LDFLAGS-rdynamic = -Wl,-bdynamic
-LDFLAGS-Bsymbolic = -Wl,-bsymbolic
-endif
 endif
 
 # Choose the default search path for the dynamic linker based on
@@ -521,18 +508,19 @@ link-libc-bounded = $(common-objpfx)libc_b.a $(gnulib) $(common-objpfx)libc_b.a
 link-extra-libs-bounded = $(foreach lib,$(LDLIBS-$(@F:%-bp=%)),$(common-objpfx)$(lib)_b.a)
 
 ifndef gnulib
-ifneq ($(have-as-needed),yes)
- libgcc_eh := -lgcc_eh
-else
- libgcc_eh := -Wl,--as-needed -lgcc_s$(libgcc_s_suffix) -Wl,--no-as-needed
-endif
 ifneq ($(have-cc-with-libunwind),yes)
- gnulib := -lgcc $(libgcc_eh)
- static-gnulib := -lgcc -lgcc_eh
+  libunwind =
 else
- gnulib := -lgcc $(libgcc_eh) -lunwind
- static-gnulib := -lgcc -lgcc_eh -lunwind
+  libunwind = -lunwind
 endif
+ifneq ($(have-as-needed),yes)
+ libgcc_eh := -lgcc_eh $(libunwind)
+else
+ libgcc_eh := -Wl,--as-needed -lgcc_s$(libgcc_s_suffix) $(libunwind) -Wl,--no-as-needed
+endif
+gnulib := -lgcc $(libgcc_eh)
+static-gnulib := -lgcc -lgcc_eh $(libunwind)
+libc.so-gnulib := -lgcc
 endif
 ifeq ($(elf),yes)
 +preinit = $(addprefix $(csu-objpfx),crti.o)
@@ -554,7 +542,7 @@ $(subst $(empty) ,:,$(strip $(patsubst -Wl$(comma)-rpath-link=%, %,\
 				       $(filter -Wl$(comma)-rpath-link=%,\
 						$(sysdep-LDFLAGS)))))
 run-program-prefix = $(if $(filter $(notdir $(built-program-file)),\
-				   $(tests-static)),, \
+				   $(tests-static) $(xtests-static)),, \
 			  $(elf-objpfx)$(rtld-installed-name) \
 			  --library-path $(rpath-link)$(patsubst %,:%,$(sysdep-library-path)))
 else
@@ -799,26 +787,19 @@ ifndef avoid-generated
 # This lets add-ons give more-specific matches that override defaults
 # in the top-level file.
 $(common-objpfx)shlib-versions.v.i: \
-	$(wildcard $(patsubst %, $(..)%/shlib-versions,$(add-ons) $(subdirs)))\
+	$(wildcard $(patsubst %, $(..)%/shlib-versions,$(add-ons) \
+						       $(config-sysdirs) \
+						       $(subdirs))) \
 	$(..)shlib-versions
-$(common-objpfx)soversions.i: $(common-objpfx)shlib-versions.v
-	default_setname='$(filter-out %_default,$(oldest-abi:%=GLIBC_%))'; \
-	while read conf version setname; do \
-	  test -n "$$version" && \
-	  test `expr '$(config-machine)-$(config-vendor)-$(config-os)' \
-		     : "$$conf"` != 0 || continue; \
-	  if test "x$$version" = xDEFAULT; then \
-	    default_setname="$$setname"; \
-	  else \
-	    $(abi-default_setname) \
-	    lib=`echo $$version | sed 's/=.*$$//'`; \
-	    if eval test -z "\$${versioned_$${lib}}"; then \
-	      eval versioned_$${lib}=yes; \
-	      number=`echo $$version | sed "s/^.*=//"`; \
-	      echo $$lib $$number $${setname:-$${default_setname}}; \
-	    fi; \
-	  fi; \
-	done < $< > $@T; exit 0
+
+soversions-default-setname = $(patsubst %, %,\
+					$(filter-out %_default,\
+						     $(oldest-abi:%=GLIBC_%)))
+$(common-objpfx)soversions.i: $(..)scripts/soversions.awk \
+			      $(common-objpfx)shlib-versions.v
+	$(AWK) -v default_setname='$(soversions-default-setname)' \
+	       -v config='$(config-machine)-$(config-vendor)-$(config-os)' \
+	       -f $^ > $@T
 	mv -f $@T $@
 $(common-objpfx)soversions.mk: $(common-objpfx)soversions.i
 	(while read lib number setname; do \
@@ -838,17 +819,10 @@ postclean-generated += soversions.mk soversions.i \
 		       shlib-versions.v shlib-versions.v.i
 
 # Generate the header containing the names of all shared libraries.
-# We use a stamp file to avoid uncessary recompilations.
+# We use a stamp file to avoid unnecessary recompilations.
 before-compile += $(common-objpfx)gnu/lib-names.h
 ifeq ($(soversions.mk-done),t)
 $(common-objpfx)gnu/lib-names.h: $(common-objpfx)gnu/lib-names.stmp; @:
-ifneq (,$(findstring aix,$(config-os)))
-$(common-objpfx)gnu/lib-names.stmp: $(..)sysdeps/unix/sysv/aix/gnu/lib-names.h
-	$(make-target-directory)
-	@rm -f ${@:stmp=T} $@
-	@cp $(..)sysdeps/unix/sysv/aix/gnu/lib-names.h $(common-objpfx)gnu
-	touch $@
-else
 $(common-objpfx)gnu/lib-names.stmp: $(common-objpfx)soversions.mk
 	$(make-target-directory)
 	@rm -f ${@:stmp=T} $@
@@ -877,7 +851,6 @@ $(common-objpfx)gnu/lib-names.stmp: $(common-objpfx)soversions.mk
 	$(move-if-change) ${@:stmp=T} ${@:stmp=h}
 	touch $@
 endif
-endif
 
 common-generated += gnu/lib-names.h gnu/lib-names.stmp
 

Makefile

@@ -299,9 +299,6 @@ $(foreach dir,$(dist-separate),
 )
 endef
 
-%.bz2: %; bzip2 -9vk $<
-%.gz: %; gzip -9vnc $< > $@.new && mv -f $@.new $@
-
 # Do `make dist dist-version=X.Y.Z' to make tar files of an older version.
 dist-version = $(version)
 

Makerules

@@ -581,8 +581,8 @@ build-shlib-objlist = $(build-module-helper-objlist) \
 # Also omits crti.o and crtn.o, which we do not want
 # since we define our own `.init' section specially.
 LDFLAGS-c.so = -nostdlib -nostartfiles
-# But we still want to link libc.so against $(static-gnulib).
-LDLIBS-c.so += $(static-gnulib)
+# But we still want to link libc.so against $(libc.so-gnulib).
+LDLIBS-c.so += $(libc.so-gnulib)
 # Give libc.so an entry point and make it directly runnable itself.
 LDFLAGS-c.so += -e __libc_main
 # If lazy relocation is disabled add the -z now flag.
@@ -1328,6 +1328,8 @@ FORCE:
 echo-headers:
 	@echo $(headers)
 
+%.bz2: %; bzip2 -9vk $<
+%.gz: %; gzip -9vnc $< > $@.new && mv -f $@.new $@
 
 # Common cleaning targets.
 

NEWS

@@ -1,4 +1,4 @@
-GNU C Library NEWS -- history of user-visible changes.  2004-8-5
+GNU C Library NEWS -- history of user-visible changes.  2004-10-19
 Copyright (C) 1992-2002,2003,2004 Free Software Foundation, Inc.
 See the end for copying conditions.
 
@@ -17,7 +17,7 @@ Version 2.3.4
 * nscd can now perform SELinux checks.
   Implemented by Matthew Rickard <mjricka@epoch.ncsc.mil>.
 
-* getaddrinfo queries are not cached.  Canonical name lookup is performed
+* getaddrinfo queries are now cached.  Canonical name lookup is performed
   efficiently.
   Implemented by Ulrich Drepper.
 
@@ -27,10 +27,20 @@ Version 2.3.4
 
 * The malloc functions perform more error checking and are stricter when
   it comes to reacting on errors.  The default action is to terminate
-  the process after showing an error message.
+  the process after showing an error message.  Implemented by Ulrich Drepper.
 
 * Reverse lookups of IPv6 addresses does not use bit string or .ip6.int
-  lookups anymore unless explicitly requested.
+  lookups anymore unless explicitly requested.  Implemented by Ulrich Drepper.
+
+* Namespaces in ld.so are implemented.  DSOs can be loaded in separate
+  namespaces using the new function dlmopen().  This feature is of course,
+  like most other dynamic loading functionality, not available in statically
+  linked applications.  Implemented by Ulrich Drepper.
+
+* Low-overhead boundary checking variants of string and some stdio functions
+  were added.  These are to be used in conjunction with a gcc patch by
+  Jakub Jelinek which adds calls to these functions if possible.
+  Patch by Jakub Jelinek and Ulrich Drepper.
 
 Version 2.3.3
 

PROJECTS

@@ -1,6 +1,6 @@
 Open jobs for finishing GNU libc:
 ---------------------------------
-Status: September 2002
+Status: October 2004
 
 If you have time and talent to take over any of the jobs below please
 contact <bug-glibc@gnu.org>.
@@ -53,7 +53,7 @@ contact <bug-glibc@gnu.org>.
 
 
 [11] Write access function for netmasks, bootparams, and automount
-     databases for nss_files and nss_db module.
+     databases for nss_files, nss_nis, and nss_nisplus modules.
      The functions should be embedded in the nss scheme.  This is not
      hard and not all services must be supported at once.
 
@@ -76,7 +76,7 @@ contact <bug-glibc@gnu.org>.
 [18] Based on the sprof program we need tools to analyze the output.  The
      result should be a link map which specifies in which order the .o
      files are placed in the shared object.  This should help to improve
-     code locality and result in a smaller foorprint (in code and data
+     code locality and result in a smaller footprint (in code and data
      memory) since less pages are only used in small parts.
 
 
@@ -93,29 +93,6 @@ contact <bug-glibc@gnu.org>.
      available.
 
 
-[21] The nscd program and the stubs in the libc should be changed so
-     that each program uses only one socket connect.  Take a look at
-	http://people.redhat.com/drepper/nscd.html
-
-     An alternative approach is to use an mmap()ed file.  The idea is
-     the following:
-     - the nscd creates the hash tables and the information it stores
-       in it in a mmap()ed region.  This means no pointers must be
-       used, only offsets.
-     OR
-       if POSIX shared memory is available use a named shared memory
-       region to put the data in
-     - each program using NSS functionality tries to open the file
-       with the data.
-     - by checking some timestamp (which the nscd renews frequently)
-       the programs can test whether the file is still valid
-     - if the file is valid look through the nscd and locate the
-       appropriate hash table for the database and lookup the data.
-       If it is included we are set.
-     - if the data is not yet in the database we contact the nscd using
-       the currently implemented methods.
-
-
 [23] The `strptime' function needs to be completed.  This includes among
      other things that it must get teached about timezones.  The solution
      envisioned is to extract the timezones from the ADO timezone
@@ -127,18 +104,4 @@ contact <bug-glibc@gnu.org>.
      Australia/Canberra or if the current locale is en_AU.
 
 
-[25] Sun's nscd version implements a feature where the nscd keeps N entries
-     for each database current.  I.e., if an entries lifespan is over and
-     it is one of the N entries to be kept the nscd updates the information
-     instead of removing the entry.
-
-     How to decide about which N entries to keep has to be examined.
-     Factors should be number of uses (of course), influenced by aging.
-     Just imagine a computer used by several people.  The IDs of the current
-     user should be preferred even if the last user spent more time.
-
-
-[27] We need a second test suite with tests which cannot run during a normal
-     `make check' run.  This test suite can require root priviledges and
-     can test things like DNS (i.e., require network access),
-     user-interaction, networking in general, and probably many other things.
+[27] ...deleted...

Rules

@@ -104,7 +104,7 @@ endif
 
 ifeq ($(build-programs),yes)
 binaries-all = $(others) $(sysdep-others) $(tests) $(xtests) $(test-srcs)
-binaries-static = $(others-static) $(tests-static)
+binaries-static = $(others-static) $(tests-static) $(xtests-static)
 else
 binaries-all = $(tests) $(xtests) $(test-srcs)
 binaries-static =

argp/argp-fs-xinl.c

@@ -1,5 +1,5 @@
 /* Real definitions for extern inline functions in argp-fmtstream.h
-   Copyright (C) 1997, 2003 Free Software Foundation, Inc.
+   Copyright (C) 1997, 2003, 2004 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Miles Bader <miles@gnu.ai.mit.edu>.
 
@@ -24,7 +24,7 @@
 
 #define ARGP_FS_EI
 #undef __OPTIMIZE__
-#define __OPTIMIZE__
+#define __OPTIMIZE__ 1
 #include "argp-fmtstream.h"
 
 #if 0

argp/argp-xinl.c

@@ -1,5 +1,5 @@
 /* Real definitions for extern inline functions in argp.h
-   Copyright (C) 1997, 1998 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998, 2004 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Miles Bader <miles@gnu.ai.mit.edu>.
 
@@ -31,7 +31,7 @@
 #endif
 #define ARGP_EI
 #undef __OPTIMIZE__
-#define __OPTIMIZE__
+#define __OPTIMIZE__ 1
 #include "argp.h"
 
 /* Add weak aliases.  */

assert/assert.h

@@ -1,4 +1,4 @@
-/* Copyright (C) 1991,1992,1994-2001,2003 Free Software Foundation, Inc.
+/* Copyright (C) 1991,1992,1994-2001,2003,2004 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -84,33 +84,16 @@ extern void __assert (const char *__assertion, const char *__file, int __line)
 
 __END_DECLS
 
-/* For the macro definition we use gcc's __builtin_expect if possible
-   to generate good code for the non-error case.  gcc 3.0 is a good
-   enough estimate for when the feature became available.  */
-# if __GNUC_PREREQ (3, 0)
-#  define assert(expr) \
-  (__ASSERT_VOID_CAST (__builtin_expect (!!(expr), 1) ? 0 :		      \
-		       (__assert_fail (__STRING(expr), __FILE__, __LINE__,    \
-				       __ASSERT_FUNCTION), 0)))
-# else
-#  define assert(expr) \
+# define assert(expr) \
   (__ASSERT_VOID_CAST ((expr) ? 0 :					      \
 		       (__assert_fail (__STRING(expr), __FILE__, __LINE__,    \
 				       __ASSERT_FUNCTION), 0)))
-# endif
 
 # ifdef	__USE_GNU
-#  if __GNUC_PREREQ (3, 0)
-#   define assert_perror(errnum) \
-  (__ASSERT_VOID_CAST (__builtin_expect (!(errnum), 1) ? 0 :		      \
-		       (__assert_perror_fail ((errnum), __FILE__, __LINE__,   \
-					      __ASSERT_FUNCTION), 0)))
-#  else
-#   define assert_perror(errnum) \
+#  define assert_perror(errnum) \
   (__ASSERT_VOID_CAST (!(errnum) ? 0 :					      \
 		       (__assert_perror_fail ((errnum), __FILE__, __LINE__,   \
 					      __ASSERT_FUNCTION), 0)))
-#  endif
 # endif
 
 /* Version 2.4 and later of GCC define a magical variable `__PRETTY_FUNCTION__'

bits/byteswap.h

@@ -1,84 +0,0 @@
-/* Macros to swap the order of bytes in integer values.
-   Copyright (C) 1997, 1998, 2000, 2001, 2002 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-#if !defined _BYTESWAP_H && !defined _NETINET_IN_H
-# error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead."
-#endif
-
-#ifndef _BITS_BYTESWAP_H
-#define _BITS_BYTESWAP_H 1
-
-/* Swap bytes in 16 bit value.  */
-#ifdef __GNUC__
-# define __bswap_16(x) \
-    (__extension__							      \
-     ({ unsigned short int __bsx = (x);					      \
-        ((((__bsx) >> 8) & 0xff) | (((__bsx) & 0xff) << 8)); }))
-#else
-static __inline unsigned short int
-__bswap_16 (unsigned short int __bsx)
-{
-  return ((((__bsx) >> 8) & 0xff) | (((__bsx) & 0xff) << 8));
-}
-#endif
-
-/* Swap bytes in 32 bit value.  */
-#ifdef __GNUC__
-# define __bswap_32(x) \
-    (__extension__							      \
-     ({ unsigned int __bsx = (x);					      \
-        ((((__bsx) & 0xff000000) >> 24) | (((__bsx) & 0x00ff0000) >>  8) |    \
-	 (((__bsx) & 0x0000ff00) <<  8) | (((__bsx) & 0x000000ff) << 24)); }))
-#else
-static __inline unsigned int
-__bswap_32 (unsigned int __bsx)
-{
-  return ((((__bsx) & 0xff000000) >> 24) | (((__bsx) & 0x00ff0000) >>  8) |
-	  (((__bsx) & 0x0000ff00) <<  8) | (((__bsx) & 0x000000ff) << 24));
-}
-#endif
-
-#if defined __GNUC__ && __GNUC__ >= 2
-/* Swap bytes in 64 bit value.  */
-# define __bswap_constant_64(x) \
-     ((((x) & 0xff00000000000000ull) >> 56)				      \
-      | (((x) & 0x00ff000000000000ull) >> 40)				      \
-      | (((x) & 0x0000ff0000000000ull) >> 24)				      \
-      | (((x) & 0x000000ff00000000ull) >> 8)				      \
-      | (((x) & 0x00000000ff000000ull) << 8)				      \
-      | (((x) & 0x0000000000ff0000ull) << 24)				      \
-      | (((x) & 0x000000000000ff00ull) << 40)				      \
-      | (((x) & 0x00000000000000ffull) << 56))
-
-# define __bswap_64(x) \
-     (__extension__							      \
-      ({ union { __extension__ unsigned long long int __ll;		      \
-		 unsigned int __l[2]; } __w, __r;			      \
-         if (__builtin_constant_p (x))					      \
-	   __r.__ll = __bswap_constant_64 (x);				      \
-	 else								      \
-	   {								      \
-	     __w.__ll = (x);						      \
-	     __r.__l[0] = __bswap_32 (__w.__l[1]);			      \
-	     __r.__l[1] = __bswap_32 (__w.__l[0]);			      \
-	   }								      \
-	 __r.__ll; }))
-#endif
-
-#endif /* _BITS_BYTESWAP_H */

bits/confname.h

@@ -1,596 +0,0 @@
-/* `sysconf', `pathconf', and `confstr' NAME values.  Generic version.
-   Copyright (C) 1993,1995-1998,2000,2001,2003,2004
-   Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-#ifndef _UNISTD_H
-# error "Never use <bits/confname.h> directly; include <unistd.h> instead."
-#endif
-
-/* Values for the NAME argument to `pathconf' and `fpathconf'.  */
-enum
-  {
-    _PC_LINK_MAX,
-#define	_PC_LINK_MAX			_PC_LINK_MAX
-    _PC_MAX_CANON,
-#define	_PC_MAX_CANON			_PC_MAX_CANON
-    _PC_MAX_INPUT,
-#define	_PC_MAX_INPUT			_PC_MAX_INPUT
-    _PC_NAME_MAX,
-#define	_PC_NAME_MAX			_PC_NAME_MAX
-    _PC_PATH_MAX,
-#define	_PC_PATH_MAX			_PC_PATH_MAX
-    _PC_PIPE_BUF,
-#define	_PC_PIPE_BUF			_PC_PIPE_BUF
-    _PC_CHOWN_RESTRICTED,
-#define	_PC_CHOWN_RESTRICTED		_PC_CHOWN_RESTRICTED
-    _PC_NO_TRUNC,
-#define	_PC_NO_TRUNC			_PC_NO_TRUNC
-    _PC_VDISABLE,
-#define _PC_VDISABLE			_PC_VDISABLE
-    _PC_SYNC_IO,
-#define	_PC_SYNC_IO			_PC_SYNC_IO
-    _PC_ASYNC_IO,
-#define	_PC_ASYNC_IO			_PC_ASYNC_IO
-    _PC_PRIO_IO,
-#define	_PC_PRIO_IO			_PC_PRIO_IO
-    _PC_SOCK_MAXBUF,
-#define	_PC_SOCK_MAXBUF			_PC_SOCK_MAXBUF
-    _PC_FILESIZEBITS,
-#define _PC_FILESIZEBITS		_PC_FILESIZEBITS
-    _PC_REC_INCR_XFER_SIZE,
-#define _PC_REC_INCR_XFER_SIZE		_PC_REC_INCR_XFER_SIZE
-    _PC_REC_MAX_XFER_SIZE,
-#define _PC_REC_MAX_XFER_SIZE		_PC_REC_MAX_XFER_SIZE
-    _PC_REC_MIN_XFER_SIZE,
-#define _PC_REC_MIN_XFER_SIZE		_PC_REC_MIN_XFER_SIZE
-    _PC_REC_XFER_ALIGN,
-#define _PC_REC_XFER_ALIGN		_PC_REC_XFER_ALIGN
-    _PC_ALLOC_SIZE_MIN,
-#define _PC_ALLOC_SIZE_MIN		_PC_ALLOC_SIZE_MIN
-    _PC_SYMLINK_MAX,
-#define _PC_SYMLINK_MAX			_PC_SYMLINK_MAX
-    _PC_2_SYMLINKS
-#define _PC_2_SYMLINKS			_PC_2_SYMLINKS
-  };
-
-/* Values for the argument to `sysconf'.  */
-enum
-  {
-    _SC_ARG_MAX,
-#define	_SC_ARG_MAX			_SC_ARG_MAX
-    _SC_CHILD_MAX,
-#define	_SC_CHILD_MAX			_SC_CHILD_MAX
-    _SC_CLK_TCK,
-#define	_SC_CLK_TCK			_SC_CLK_TCK
-    _SC_NGROUPS_MAX,
-#define	_SC_NGROUPS_MAX			_SC_NGROUPS_MAX
-    _SC_OPEN_MAX,
-#define	_SC_OPEN_MAX			_SC_OPEN_MAX
-    _SC_STREAM_MAX,
-#define	_SC_STREAM_MAX			_SC_STREAM_MAX
-    _SC_TZNAME_MAX,
-#define	_SC_TZNAME_MAX			_SC_TZNAME_MAX
-    _SC_JOB_CONTROL,
-#define	_SC_JOB_CONTROL			_SC_JOB_CONTROL
-    _SC_SAVED_IDS,
-#define	_SC_SAVED_IDS			_SC_SAVED_IDS
-    _SC_REALTIME_SIGNALS,
-#define	_SC_REALTIME_SIGNALS		_SC_REALTIME_SIGNALS
-    _SC_PRIORITY_SCHEDULING,
-#define	_SC_PRIORITY_SCHEDULING		_SC_PRIORITY_SCHEDULING
-    _SC_TIMERS,
-#define	_SC_TIMERS			_SC_TIMERS
-    _SC_ASYNCHRONOUS_IO,
-#define	_SC_ASYNCHRONOUS_IO		_SC_ASYNCHRONOUS_IO
-    _SC_PRIORITIZED_IO,
-#define	_SC_PRIORITIZED_IO		_SC_PRIORITIZED_IO
-    _SC_SYNCHRONIZED_IO,
-#define	_SC_SYNCHRONIZED_IO		_SC_SYNCHRONIZED_IO
-    _SC_FSYNC,
-#define	_SC_FSYNC			_SC_FSYNC
-    _SC_MAPPED_FILES,
-#define	_SC_MAPPED_FILES		_SC_MAPPED_FILES
-    _SC_MEMLOCK,
-#define	_SC_MEMLOCK			_SC_MEMLOCK
-    _SC_MEMLOCK_RANGE,
-#define	_SC_MEMLOCK_RANGE		_SC_MEMLOCK_RANGE
-    _SC_MEMORY_PROTECTION,
-#define	_SC_MEMORY_PROTECTION		_SC_MEMORY_PROTECTION
-    _SC_MESSAGE_PASSING,
-#define	_SC_MESSAGE_PASSING		_SC_MESSAGE_PASSING
-    _SC_SEMAPHORES,
-#define	_SC_SEMAPHORES			_SC_SEMAPHORES
-    _SC_SHARED_MEMORY_OBJECTS,
-#define	_SC_SHARED_MEMORY_OBJECTS	_SC_SHARED_MEMORY_OBJECTS
-    _SC_AIO_LISTIO_MAX,
-#define	_SC_AIO_LISTIO_MAX		_SC_AIO_LISTIO_MAX
-    _SC_AIO_MAX,
-#define	_SC_AIO_MAX			_SC_AIO_MAX
-    _SC_AIO_PRIO_DELTA_MAX,
-#define	_SC_AIO_PRIO_DELTA_MAX		_SC_AIO_PRIO_DELTA_MAX
-    _SC_DELAYTIMER_MAX,
-#define	_SC_DELAYTIMER_MAX		_SC_DELAYTIMER_MAX
-    _SC_MQ_OPEN_MAX,
-#define	_SC_MQ_OPEN_MAX			_SC_MQ_OPEN_MAX
-    _SC_MQ_PRIO_MAX,
-#define	_SC_MQ_PRIO_MAX			_SC_MQ_PRIO_MAX
-    _SC_VERSION,
-#define	_SC_VERSION			_SC_VERSION
-    _SC_PAGESIZE,
-#define	_SC_PAGESIZE			_SC_PAGESIZE
-#define	_SC_PAGE_SIZE			_SC_PAGESIZE
-    _SC_RTSIG_MAX,
-#define	_SC_RTSIG_MAX			_SC_RTSIG_MAX
-    _SC_SEM_NSEMS_MAX,
-#define	_SC_SEM_NSEMS_MAX		_SC_SEM_NSEMS_MAX
-    _SC_SEM_VALUE_MAX,
-#define	_SC_SEM_VALUE_MAX		_SC_SEM_VALUE_MAX
-    _SC_SIGQUEUE_MAX,
-#define	_SC_SIGQUEUE_MAX		_SC_SIGQUEUE_MAX
-    _SC_TIMER_MAX,
-#define	_SC_TIMER_MAX			_SC_TIMER_MAX
-
-    /* Values for the argument to `sysconf'
-       corresponding to _POSIX2_* symbols.  */
-    _SC_BC_BASE_MAX,
-#define	_SC_BC_BASE_MAX			_SC_BC_BASE_MAX
-    _SC_BC_DIM_MAX,
-#define	_SC_BC_DIM_MAX			_SC_BC_DIM_MAX
-    _SC_BC_SCALE_MAX,
-#define	_SC_BC_SCALE_MAX		_SC_BC_SCALE_MAX
-    _SC_BC_STRING_MAX,
-#define	_SC_BC_STRING_MAX		_SC_BC_STRING_MAX
-    _SC_COLL_WEIGHTS_MAX,
-#define	_SC_COLL_WEIGHTS_MAX		_SC_COLL_WEIGHTS_MAX
-    _SC_EQUIV_CLASS_MAX,
-#define	_SC_EQUIV_CLASS_MAX		_SC_EQUIV_CLASS_MAX
-    _SC_EXPR_NEST_MAX,
-#define	_SC_EXPR_NEST_MAX		_SC_EXPR_NEST_MAX
-    _SC_LINE_MAX,
-#define	_SC_LINE_MAX			_SC_LINE_MAX
-    _SC_RE_DUP_MAX,
-#define	_SC_RE_DUP_MAX			_SC_RE_DUP_MAX
-    _SC_CHARCLASS_NAME_MAX,
-#define	_SC_CHARCLASS_NAME_MAX		_SC_CHARCLASS_NAME_MAX
-
-    _SC_2_VERSION,
-#define	_SC_2_VERSION			_SC_2_VERSION
-    _SC_2_C_BIND,
-#define	_SC_2_C_BIND			_SC_2_C_BIND
-    _SC_2_C_DEV,
-#define	_SC_2_C_DEV			_SC_2_C_DEV
-    _SC_2_FORT_DEV,
-#define	_SC_2_FORT_DEV			_SC_2_FORT_DEV
-    _SC_2_FORT_RUN,
-#define	_SC_2_FORT_RUN			_SC_2_FORT_RUN
-    _SC_2_SW_DEV,
-#define	_SC_2_SW_DEV			_SC_2_SW_DEV
-    _SC_2_LOCALEDEF,
-#define	_SC_2_LOCALEDEF			_SC_2_LOCALEDEF
-
-    _SC_PII,
-#define	_SC_PII				_SC_PII
-    _SC_PII_XTI,
-#define	_SC_PII_XTI			_SC_PII_XTI
-    _SC_PII_SOCKET,
-#define	_SC_PII_SOCKET			_SC_PII_SOCKET
-    _SC_PII_INTERNET,
-#define	_SC_PII_INTERNET		_SC_PII_INTERNET
-    _SC_PII_OSI,
-#define	_SC_PII_OSI			_SC_PII_OSI
-    _SC_POLL,
-#define	_SC_POLL			_SC_POLL
-    _SC_SELECT,
-#define	_SC_SELECT			_SC_SELECT
-    _SC_UIO_MAXIOV,
-#define	_SC_UIO_MAXIOV			_SC_UIO_MAXIOV
-    _SC_IOV_MAX = _SC_UIO_MAXIOV,
-#define _SC_IOV_MAX			_SC_IOV_MAX
-    _SC_PII_INTERNET_STREAM,
-#define	_SC_PII_INTERNET_STREAM		_SC_PII_INTERNET_STREAM
-    _SC_PII_INTERNET_DGRAM,
-#define	_SC_PII_INTERNET_DGRAM		_SC_PII_INTERNET_DGRAM
-    _SC_PII_OSI_COTS,
-#define	_SC_PII_OSI_COTS		_SC_PII_OSI_COTS
-    _SC_PII_OSI_CLTS,
-#define	_SC_PII_OSI_CLTS		_SC_PII_OSI_CLTS
-    _SC_PII_OSI_M,
-#define	_SC_PII_OSI_M			_SC_PII_OSI_M
-    _SC_T_IOV_MAX,
-#define	_SC_T_IOV_MAX			_SC_T_IOV_MAX
-
-    /* Values according to POSIX 1003.1c (POSIX threads).  */
-    _SC_THREADS,
-#define	_SC_THREADS			_SC_THREADS
-    _SC_THREAD_SAFE_FUNCTIONS,
-#define _SC_THREAD_SAFE_FUNCTIONS	_SC_THREAD_SAFE_FUNCTIONS
-    _SC_GETGR_R_SIZE_MAX,
-#define	_SC_GETGR_R_SIZE_MAX		_SC_GETGR_R_SIZE_MAX
-    _SC_GETPW_R_SIZE_MAX,
-#define	_SC_GETPW_R_SIZE_MAX		_SC_GETPW_R_SIZE_MAX
-    _SC_LOGIN_NAME_MAX,
-#define	_SC_LOGIN_NAME_MAX		_SC_LOGIN_NAME_MAX
-    _SC_TTY_NAME_MAX,
-#define	_SC_TTY_NAME_MAX		_SC_TTY_NAME_MAX
-    _SC_THREAD_DESTRUCTOR_ITERATIONS,
-#define	_SC_THREAD_DESTRUCTOR_ITERATIONS _SC_THREAD_DESTRUCTOR_ITERATIONS
-    _SC_THREAD_KEYS_MAX,
-#define	_SC_THREAD_KEYS_MAX		_SC_THREAD_KEYS_MAX
-    _SC_THREAD_STACK_MIN,
-#define	_SC_THREAD_STACK_MIN		_SC_THREAD_STACK_MIN
-    _SC_THREAD_THREADS_MAX,
-#define	_SC_THREAD_THREADS_MAX		_SC_THREAD_THREADS_MAX
-    _SC_THREAD_ATTR_STACKADDR,
-#define	_SC_THREAD_ATTR_STACKADDR	_SC_THREAD_ATTR_STACKADDR
-    _SC_THREAD_ATTR_STACKSIZE,
-#define	_SC_THREAD_ATTR_STACKSIZE	_SC_THREAD_ATTR_STACKSIZE
-    _SC_THREAD_PRIORITY_SCHEDULING,
-#define	_SC_THREAD_PRIORITY_SCHEDULING	_SC_THREAD_PRIORITY_SCHEDULING
-    _SC_THREAD_PRIO_INHERIT,
-#define	_SC_THREAD_PRIO_INHERIT		_SC_THREAD_PRIO_INHERIT
-    _SC_THREAD_PRIO_PROTECT,
-#define	_SC_THREAD_PRIO_PROTECT		_SC_THREAD_PRIO_PROTECT
-    _SC_THREAD_PROCESS_SHARED,
-#define	_SC_THREAD_PROCESS_SHARED	_SC_THREAD_PROCESS_SHARED
-
-    _SC_NPROCESSORS_CONF,
-#define _SC_NPROCESSORS_CONF		_SC_NPROCESSORS_CONF
-    _SC_NPROCESSORS_ONLN,
-#define _SC_NPROCESSORS_ONLN		_SC_NPROCESSORS_ONLN
-    _SC_PHYS_PAGES,
-#define _SC_PHYS_PAGES			_SC_PHYS_PAGES
-    _SC_AVPHYS_PAGES,
-#define _SC_AVPHYS_PAGES		_SC_AVPHYS_PAGES
-    _SC_ATEXIT_MAX,
-#define _SC_ATEXIT_MAX			_SC_ATEXIT_MAX
-    _SC_PASS_MAX,
-#define _SC_PASS_MAX			_SC_PASS_MAX
-
-    _SC_XOPEN_VERSION,
-#define _SC_XOPEN_VERSION		_SC_XOPEN_VERSION
-    _SC_XOPEN_XCU_VERSION,
-#define _SC_XOPEN_XCU_VERSION		_SC_XOPEN_XCU_VERSION
-    _SC_XOPEN_UNIX,
-#define _SC_XOPEN_UNIX			_SC_XOPEN_UNIX
-    _SC_XOPEN_CRYPT,
-#define _SC_XOPEN_CRYPT			_SC_XOPEN_CRYPT
-    _SC_XOPEN_ENH_I18N,
-#define _SC_XOPEN_ENH_I18N		_SC_XOPEN_ENH_I18N
-    _SC_XOPEN_SHM,
-#define _SC_XOPEN_SHM			_SC_XOPEN_SHM
-
-    _SC_2_CHAR_TERM,
-#define _SC_2_CHAR_TERM			_SC_2_CHAR_TERM
-    _SC_2_C_VERSION,
-#define _SC_2_C_VERSION			_SC_2_C_VERSION
-    _SC_2_UPE,
-#define _SC_2_UPE			_SC_2_UPE
-
-    _SC_XOPEN_XPG2,
-#define _SC_XOPEN_XPG2			_SC_XOPEN_XPG2
-    _SC_XOPEN_XPG3,
-#define _SC_XOPEN_XPG3			_SC_XOPEN_XPG3
-    _SC_XOPEN_XPG4,
-#define _SC_XOPEN_XPG4			_SC_XOPEN_XPG4
-
-    _SC_CHAR_BIT,
-#define	_SC_CHAR_BIT			_SC_CHAR_BIT
-    _SC_CHAR_MAX,
-#define	_SC_CHAR_MAX			_SC_CHAR_MAX
-    _SC_CHAR_MIN,
-#define	_SC_CHAR_MIN			_SC_CHAR_MIN
-    _SC_INT_MAX,
-#define	_SC_INT_MAX			_SC_INT_MAX
-    _SC_INT_MIN,
-#define	_SC_INT_MIN			_SC_INT_MIN
-    _SC_LONG_BIT,
-#define	_SC_LONG_BIT			_SC_LONG_BIT
-    _SC_WORD_BIT,
-#define	_SC_WORD_BIT			_SC_WORD_BIT
-    _SC_MB_LEN_MAX,
-#define	_SC_MB_LEN_MAX			_SC_MB_LEN_MAX
-    _SC_NZERO,
-#define	_SC_NZERO			_SC_NZERO
-    _SC_SSIZE_MAX,
-#define	_SC_SSIZE_MAX			_SC_SSIZE_MAX
-    _SC_SCHAR_MAX,
-#define	_SC_SCHAR_MAX			_SC_SCHAR_MAX
-    _SC_SCHAR_MIN,
-#define	_SC_SCHAR_MIN			_SC_SCHAR_MIN
-    _SC_SHRT_MAX,
-#define	_SC_SHRT_MAX			_SC_SHRT_MAX
-    _SC_SHRT_MIN,
-#define	_SC_SHRT_MIN			_SC_SHRT_MIN
-    _SC_UCHAR_MAX,
-#define	_SC_UCHAR_MAX			_SC_UCHAR_MAX
-    _SC_UINT_MAX,
-#define	_SC_UINT_MAX			_SC_UINT_MAX
-    _SC_ULONG_MAX,
-#define	_SC_ULONG_MAX			_SC_ULONG_MAX
-    _SC_USHRT_MAX,
-#define	_SC_USHRT_MAX			_SC_USHRT_MAX
-
-    _SC_NL_ARGMAX,
-#define	_SC_NL_ARGMAX			_SC_NL_ARGMAX
-    _SC_NL_LANGMAX,
-#define	_SC_NL_LANGMAX			_SC_NL_LANGMAX
-    _SC_NL_MSGMAX,
-#define	_SC_NL_MSGMAX			_SC_NL_MSGMAX
-    _SC_NL_NMAX,
-#define	_SC_NL_NMAX			_SC_NL_NMAX
-    _SC_NL_SETMAX,
-#define	_SC_NL_SETMAX			_SC_NL_SETMAX
-    _SC_NL_TEXTMAX,
-#define	_SC_NL_TEXTMAX			_SC_NL_TEXTMAX
-
-    _SC_XBS5_ILP32_OFF32,
-#define _SC_XBS5_ILP32_OFF32		_SC_XBS5_ILP32_OFF32
-    _SC_XBS5_ILP32_OFFBIG,
-#define _SC_XBS5_ILP32_OFFBIG		_SC_XBS5_ILP32_OFFBIG
-    _SC_XBS5_LP64_OFF64,
-#define _SC_XBS5_LP64_OFF64		_SC_XBS5_LP64_OFF64
-    _SC_XBS5_LPBIG_OFFBIG,
-#define _SC_XBS5_LPBIG_OFFBIG		_SC_XBS5_LPBIG_OFFBIG
-
-    _SC_XOPEN_LEGACY,
-#define _SC_XOPEN_LEGACY		_SC_XOPEN_LEGACY
-    _SC_XOPEN_REALTIME,
-#define _SC_XOPEN_REALTIME		_SC_XOPEN_REALTIME
-    _SC_XOPEN_REALTIME_THREADS,
-#define _SC_XOPEN_REALTIME_THREADS	_SC_XOPEN_REALTIME_THREADS
-
-    _SC_ADVISORY_INFO,
-#define _SC_ADVISORY_INFO		_SC_ADVISORY_INFO
-    _SC_BARRIERS,
-#define _SC_BARRIERS			_SC_BARRIERS
-    _SC_BASE,
-#define _SC_BASE			_SC_BASE
-    _SC_C_LANG_SUPPORT,
-#define _SC_C_LANG_SUPPORT		_SC_C_LANG_SUPPORT
-    _SC_C_LANG_SUPPORT_R,
-#define _SC_C_LANG_SUPPORT_R		_SC_C_LANG_SUPPORT_R
-    _SC_CLOCK_SELECTION,
-#define _SC_CLOCK_SELECTION		_SC_CLOCK_SELECTION
-    _SC_CPUTIME,
-#define _SC_CPUTIME			_SC_CPUTIME
-    _SC_THREAD_CPUTIME,
-#define _SC_THREAD_CPUTIME		_SC_THREAD_CPUTIME
-    _SC_DEVICE_IO,
-#define _SC_DEVICE_IO			_SC_DEVICE_IO
-    _SC_DEVICE_SPECIFIC,
-#define _SC_DEVICE_SPECIFIC		_SC_DEVICE_SPECIFIC
-    _SC_DEVICE_SPECIFIC_R,
-#define _SC_DEVICE_SPECIFIC_R		_SC_DEVICE_SPECIFIC_R
-    _SC_FD_MGMT,
-#define _SC_FD_MGMT			_SC_FD_MGMT
-    _SC_FIFO,
-#define _SC_FIFO			_SC_FIFO
-    _SC_PIPE,
-#define _SC_PIPE			_SC_PIPE
-    _SC_FILE_ATTRIBUTES,
-#define _SC_FILE_ATTRIBUTES		_SC_FILE_ATTRIBUTES
-    _SC_FILE_LOCKING,
-#define _SC_FILE_LOCKING		_SC_FILE_LOCKING
-    _SC_FILE_SYSTEM,
-#define _SC_FILE_SYSTEM			_SC_FILE_SYSTEM
-    _SC_MONOTONIC_CLOCK,
-#define _SC_MONOTONIC_CLOCK		_SC_MONOTONIC_CLOCK
-    _SC_MULTI_PROCESS,
-#define _SC_MULTI_PROCESS		_SC_MULTI_PROCESS
-    _SC_SINGLE_PROCESS,
-#define _SC_SINGLE_PROCESS		_SC_SINGLE_PROCESS
-    _SC_NETWORKING,
-#define _SC_NETWORKING			_SC_NETWORKING
-    _SC_READER_WRITER_LOCKS,
-#define _SC_READER_WRITER_LOCKS		_SC_READER_WRITER_LOCKS
-    _SC_SPIN_LOCKS,
-#define _SC_SPIN_LOCKS			_SC_SPIN_LOCKS
-    _SC_REGEXP,
-#define _SC_REGEXP			_SC_REGEXP
-    _SC_REGEX_VERSION,
-#define _SC_REGEX_VERSION		_SC_REGEX_VERSION
-    _SC_SHELL,
-#define _SC_SHELL			_SC_SHELL
-    _SC_SIGNALS,
-#define _SC_SIGNALS			_SC_SIGNALS
-    _SC_SPAWN,
-#define _SC_SPAWN			_SC_SPAWN
-    _SC_SPORADIC_SERVER,
-#define _SC_SPORADIC_SERVER		_SC_SPORADIC_SERVER
-    _SC_THREAD_SPORADIC_SERVER,
-#define _SC_THREAD_SPORADIC_SERVER	_SC_THREAD_SPORADIC_SERVER
-    _SC_SYSTEM_DATABASE,
-#define _SC_SYSTEM_DATABASE		_SC_SYSTEM_DATABASE
-    _SC_SYSTEM_DATABASE_R,
-#define _SC_SYSTEM_DATABASE_R		_SC_SYSTEM_DATABASE_R
-    _SC_TIMEOUTS,
-#define _SC_TIMEOUTS			_SC_TIMEOUTS
-    _SC_TYPED_MEMORY_OBJECTS,
-#define _SC_TYPED_MEMORY_OBJECTS	_SC_TYPED_MEMORY_OBJECTS
-    _SC_USER_GROUPS,
-#define _SC_USER_GROUPS			_SC_USER_GROUPS
-    _SC_USER_GROUPS_R,
-#define _SC_USER_GROUPS_R		_SC_USER_GROUPS_R
-    _SC_2_PBS,
-#define _SC_2_PBS			_SC_2_PBS
-    _SC_2_PBS_ACCOUNTING,
-#define _SC_2_PBS_ACCOUNTING		_SC_2_PBS_ACCOUNTING
-    _SC_2_PBS_LOCATE,
-#define _SC_2_PBS_LOCATE		_SC_2_PBS_LOCATE
-    _SC_2_PBS_MESSAGE,
-#define _SC_2_PBS_MESSAGE		_SC_2_PBS_MESSAGE
-    _SC_2_PBS_TRACK,
-#define _SC_2_PBS_TRACK			_SC_2_PBS_TRACK
-    _SC_SYMLOOP_MAX,
-#define _SC_SYMLOOP_MAX			_SC_SYMLOOP_MAX
-    _SC_STREAMS,
-#define _SC_STREAMS			_SC_STREAMS
-    _SC_2_PBS_CHECKPOINT,
-#define _SC_2_PBS_CHECKPOINT		_SC_2_PBS_CHECKPOINT
-
-    _SC_V6_ILP32_OFF32,
-#define _SC_V6_ILP32_OFF32		_SC_V6_ILP32_OFF32
-    _SC_V6_ILP32_OFFBIG,
-#define _SC_V6_ILP32_OFFBIG		_SC_V6_ILP32_OFFBIG
-    _SC_V6_LP64_OFF64,
-#define _SC_V6_LP64_OFF64		_SC_V6_LP64_OFF64
-    _SC_V6_LPBIG_OFFBIG,
-#define _SC_V6_LPBIG_OFFBIG		_SC_V6_LPBIG_OFFBIG
-
-    _SC_HOST_NAME_MAX,
-#define _SC_HOST_NAME_MAX		_SC_HOST_NAME_MAX
-    _SC_TRACE,
-#define _SC_TRACE			_SC_TRACE
-    _SC_TRACE_EVENT_FILTER,
-#define _SC_TRACE_EVENT_FILTER		_SC_TRACE_EVENT_FILTER
-    _SC_TRACE_INHERIT,
-#define _SC_TRACE_INHERIT		_SC_TRACE_INHERIT
-    _SC_TRACE_LOG,
-#define _SC_TRACE_LOG			_SC_TRACE_LOG
-
-    _SC_LEVEL1_ICACHE_SIZE,
-#define _SC_LEVEL1_ICACHE_SIZE		_SC_LEVEL1_ICACHE_SIZE
-    _SC_LEVEL1_ICACHE_ASSOC,
-#define _SC_LEVEL1_ICACHE_ASSOC		_SC_LEVEL1_ICACHE_ASSOC
-    _SC_LEVEL1_ICACHE_LINESIZE,
-#define _SC_LEVEL1_ICACHE_LINESIZE	_SC_LEVEL1_ICACHE_LINESIZE
-    _SC_LEVEL1_DCACHE_SIZE,
-#define _SC_LEVEL1_DCACHE_SIZE		_SC_LEVEL1_DCACHE_SIZE
-    _SC_LEVEL1_DCACHE_ASSOC,
-#define _SC_LEVEL1_DCACHE_ASSOC		_SC_LEVEL1_DCACHE_ASSOC
-    _SC_LEVEL1_DCACHE_LINESIZE,
-#define _SC_LEVEL1_DCACHE_LINESIZE	_SC_LEVEL1_DCACHE_LINESIZE
-    _SC_LEVEL2_CACHE_SIZE,
-#define _SC_LEVEL2_CACHE_SIZE		_SC_LEVEL2_CACHE_SIZE
-    _SC_LEVEL2_CACHE_ASSOC,
-#define _SC_LEVEL2_CACHE_ASSOC		_SC_LEVEL2_CACHE_ASSOC
-    _SC_LEVEL2_CACHE_LINESIZE,
-#define _SC_LEVEL2_CACHE_LINESIZE	_SC_LEVEL2_CACHE_LINESIZE
-    _SC_LEVEL3_CACHE_SIZE,
-#define _SC_LEVEL3_CACHE_SIZE		_SC_LEVEL3_CACHE_SIZE
-    _SC_LEVEL3_CACHE_ASSOC,
-#define _SC_LEVEL3_CACHE_ASSOC		_SC_LEVEL3_CACHE_ASSOC
-    _SC_LEVEL3_CACHE_LINESIZE,
-#define _SC_LEVEL3_CACHE_LINESIZE	_SC_LEVEL3_CACHE_LINESIZE
-    _SC_LEVEL4_CACHE_SIZE,
-#define _SC_LEVEL4_CACHE_SIZE		_SC_LEVEL4_CACHE_SIZE
-    _SC_LEVEL4_CACHE_ASSOC,
-#define _SC_LEVEL4_CACHE_ASSOC		_SC_LEVEL4_CACHE_ASSOC
-    _SC_LEVEL4_CACHE_LINESIZE
-#define _SC_LEVEL4_CACHE_LINESIZE	_SC_LEVEL4_CACHE_LINESIZE
-    /* Leave room here, maybe we need a few more cache levels some day.  */
-  };
-
-/* Values for the NAME argument to `confstr'.  */
-enum
-  {
-    _CS_PATH,			/* The default search path.  */
-#define _CS_PATH		_CS_PATH
-
-    _CS_V6_WIDTH_RESTRICTED_ENVS,
-# define _CS_V6_WIDTH_RESTRICTED_ENVS	_CS_V6_WIDTH_RESTRICTED_ENVS
-
-    _CS_GNU_LIBC_VERSION,
-#define _CS_GNU_LIBC_VERSION	_CS_GNU_LIBC_VERSION
-    _CS_GNU_LIBPTHREAD_VERSION,
-#define _CS_GNU_LIBPTHREAD_VERSION	_CS_GNU_LIBPTHREAD_VERSION
-
-    _CS_LFS_CFLAGS = 1000,
-#define _CS_LFS_CFLAGS	_CS_LFS_CFLAGS
-    _CS_LFS_LDFLAGS,
-#define _CS_LFS_LDFLAGS	_CS_LFS_LDFLAGS
-    _CS_LFS_LIBS,
-#define _CS_LFS_LIBS		_CS_LFS_LIBS
-    _CS_LFS_LINTFLAGS,
-#define _CS_LFS_LINTFLAGS	_CS_LFS_LINTFLAGS
-    _CS_LFS64_CFLAGS,
-#define _CS_LFS64_CFLAGS	_CS_LFS64_CFLAGS
-    _CS_LFS64_LDFLAGS,
-#define _CS_LFS64_LDFLAGS	_CS_LFS64_LDFLAGS
-    _CS_LFS64_LIBS,
-#define _CS_LFS64_LIBS	_CS_LFS64_LIBS
-    _CS_LFS64_LINTFLAGS,
-#define _CS_LFS64_LINTFLAGS	_CS_LFS64_LINTFLAGS
-
-    _CS_XBS5_ILP32_OFF32_CFLAGS = 1100,
-#define _CS_XBS5_ILP32_OFF32_CFLAGS _CS_XBS5_ILP32_OFF32_CFLAGS
-    _CS_XBS5_ILP32_OFF32_LDFLAGS,
-#define _CS_XBS5_ILP32_OFF32_LDFLAGS _CS_XBS5_ILP32_OFF32_LDFLAGS
-    _CS_XBS5_ILP32_OFF32_LIBS,
-#define _CS_XBS5_ILP32_OFF32_LIBS _CS_XBS5_ILP32_OFF32_LIBS
-    _CS_XBS5_ILP32_OFF32_LINTFLAGS,
-#define _CS_XBS5_ILP32_OFF32_LINTFLAGS _CS_XBS5_ILP32_OFF32_LINTFLAGS
-    _CS_XBS5_ILP32_OFFBIG_CFLAGS,
-#define _CS_XBS5_ILP32_OFFBIG_CFLAGS _CS_XBS5_ILP32_OFFBIG_CFLAGS
-    _CS_XBS5_ILP32_OFFBIG_LDFLAGS,
-#define _CS_XBS5_ILP32_OFFBIG_LDFLAGS _CS_XBS5_ILP32_OFFBIG_LDFLAGS
-    _CS_XBS5_ILP32_OFFBIG_LIBS,
-#define _CS_XBS5_ILP32_OFFBIG_LIBS _CS_XBS5_ILP32_OFFBIG_LIBS
-    _CS_XBS5_ILP32_OFFBIG_LINTFLAGS,
-#define _CS_XBS5_ILP32_OFFBIG_LINTFLAGS _CS_XBS5_ILP32_OFFBIG_LINTFLAGS
-    _CS_XBS5_LP64_OFF64_CFLAGS,
-#define _CS_XBS5_LP64_OFF64_CFLAGS _CS_XBS5_LP64_OFF64_CFLAGS
-    _CS_XBS5_LP64_OFF64_LDFLAGS,
-#define _CS_XBS5_LP64_OFF64_LDFLAGS _CS_XBS5_LP64_OFF64_LDFLAGS
-    _CS_XBS5_LP64_OFF64_LIBS,
-#define _CS_XBS5_LP64_OFF64_LIBS _CS_XBS5_LP64_OFF64_LIBS
-    _CS_XBS5_LP64_OFF64_LINTFLAGS,
-#define _CS_XBS5_LP64_OFF64_LINTFLAGS _CS_XBS5_LP64_OFF64_LINTFLAGS
-    _CS_XBS5_LPBIG_OFFBIG_CFLAGS,
-#define _CS_XBS5_LPBIG_OFFBIG_CFLAGS _CS_XBS5_LPBIG_OFFBIG_CFLAGS
-    _CS_XBS5_LPBIG_OFFBIG_LDFLAGS,
-#define _CS_XBS5_LPBIG_OFFBIG_LDFLAGS _CS_XBS5_LPBIG_OFFBIG_LDFLAGS
-    _CS_XBS5_LPBIG_OFFBIG_LIBS,
-#define _CS_XBS5_LPBIG_OFFBIG_LIBS _CS_XBS5_LPBIG_OFFBIG_LIBS
-    _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS,
-#define _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS
-
-    _CS_POSIX_V6_ILP32_OFF32_CFLAGS,
-#define _CS_POSIX_V6_ILP32_OFF32_CFLAGS _CS_POSIX_V6_ILP32_OFF32_CFLAGS
-    _CS_POSIX_V6_ILP32_OFF32_LDFLAGS,
-#define _CS_POSIX_V6_ILP32_OFF32_LDFLAGS _CS_POSIX_V6_ILP32_OFF32_LDFLAGS
-    _CS_POSIX_V6_ILP32_OFF32_LIBS,
-#define _CS_POSIX_V6_ILP32_OFF32_LIBS _CS_POSIX_V6_ILP32_OFF32_LIBS
-    _CS_POSIX_V6_ILP32_OFF32_LINTFLAGS,
-#define _CS_POSIX_V6_ILP32_OFF32_LINTFLAGS _CS_POSIX_V6_ILP32_OFF32_LINTFLAGS
-    _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS,
-#define _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS
-    _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS,
-#define _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS
-    _CS_POSIX_V6_ILP32_OFFBIG_LIBS,
-#define _CS_POSIX_V6_ILP32_OFFBIG_LIBS _CS_POSIX_V6_ILP32_OFFBIG_LIBS
-    _CS_POSIX_V6_ILP32_OFFBIG_LINTFLAGS,
-#define _CS_POSIX_V6_ILP32_OFFBIG_LINTFLAGS _CS_POSIX_V6_ILP32_OFFBIG_LINTFLAGS
-    _CS_POSIX_V6_LP64_OFF64_CFLAGS,
-#define _CS_POSIX_V6_LP64_OFF64_CFLAGS _CS_POSIX_V6_LP64_OFF64_CFLAGS
-    _CS_POSIX_V6_LP64_OFF64_LDFLAGS,
-#define _CS_POSIX_V6_LP64_OFF64_LDFLAGS _CS_POSIX_V6_LP64_OFF64_LDFLAGS
-    _CS_POSIX_V6_LP64_OFF64_LIBS,
-#define _CS_POSIX_V6_LP64_OFF64_LIBS _CS_POSIX_V6_LP64_OFF64_LIBS
-    _CS_POSIX_V6_LP64_OFF64_LINTFLAGS,
-#define _CS_POSIX_V6_LP64_OFF64_LINTFLAGS _CS_POSIX_V6_LP64_OFF64_LINTFLAGS
-    _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS,
-#define _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS
-    _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS,
-#define _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS
-    _CS_POSIX_V6_LPBIG_OFFBIG_LIBS,
-#define _CS_POSIX_V6_LPBIG_OFFBIG_LIBS _CS_POSIX_V6_LPBIG_OFFBIG_LIBS
-    _CS_POSIX_V6_LPBIG_OFFBIG_LINTFLAGS
-#define _CS_POSIX_V6_LPBIG_OFFBIG_LINTFLAGS _CS_POSIX_V6_LPBIG_OFFBIG_LINTFLAGS
-  };

bits/dlfcn.h

@@ -1,64 +0,0 @@
-/* System dependent definitions for run-time dynamic loading.
-   Copyright (C) 1996,1997,1998,1999,2000,2001 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-#ifndef _DLFCN_H
-# error "Never use <bits/dlfcn.h> directly; include <dlfcn.h> instead."
-#endif
-
-/* The MODE argument to `dlopen' contains one of the following: */
-#define RTLD_LAZY	0x00001	/* Lazy function call binding.  */
-#define RTLD_NOW	0x00002	/* Immediate function call binding.  */
-#define	RTLD_BINDING_MASK   0x3	/* Mask of binding time value.  */
-#define RTLD_NOLOAD	0x00004	/* Do not load the object.  */
-
-/* If the following bit is set in the MODE argument to `dlopen',
-   the symbols of the loaded object and its dependencies are made
-   visible as if the object were linked directly into the program.  */
-#define RTLD_GLOBAL	0x00100
-
-/* Unix98 demands the following flag which is the inverse to RTLD_GLOBAL.
-   The implementation does this by default and so we can define the
-   value to zero.  */
-#define RTLD_LOCAL	0
-
-/* Do not delete object when closed.  */
-#define RTLD_NODELETE	0x01000
-
-#ifdef __USE_GNU
-/* To support profiling of shared objects it is a good idea to call
-   the function found using `dlsym' using the following macro since
-   these calls do not use the PLT.  But this would mean the dynamic
-   loader has no chance to find out when the function is called.  The
-   macro applies the necessary magic so that profiling is possible.
-   Rewrite
-	foo = (*fctp) (arg1, arg2);
-   into
-        foo = DL_CALL_FCT (fctp, (arg1, arg2));
-*/
-# define DL_CALL_FCT(fctp, args) \
-  (_dl_mcount_wrapper_check ((void *) (fctp)), (*(fctp)) args)
-
-__BEGIN_DECLS
-
-/* This function calls the profiling functions.  */
-extern void _dl_mcount_wrapper_check (void *__selfpc) __THROW;
-
-__END_DECLS
-
-#endif

bits/link.h

@@ -1,4 +0,0 @@
-struct link_map_machine
-  {
-    /* empty by default */
-  };

bits/mman.h

@@ -1,91 +0,0 @@
-/* Definitions for BSD-style memory management.
-   Copyright (C) 1994-1998,2000,01,02 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-/* These are the bits used by 4.4 BSD and its derivatives.  On systems
-   (such as GNU) where these facilities are not system services but can be
-   emulated in the C library, these are the definitions we emulate.  */
-
-#ifndef _SYS_MMAN_H
-# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
-#endif
-
-/* Protections are chosen from these bits, OR'd together.  The
-   implementation does not necessarily support PROT_EXEC or PROT_WRITE
-   without PROT_READ.  The only guarantees are that no writing will be
-   allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
-
-#define	PROT_NONE	 0x00	/* No access.  */
-#define	PROT_READ	 0x04	/* Pages can be read.  */
-#define	PROT_WRITE	 0x02	/* Pages can be written.  */
-#define	PROT_EXEC	 0x01	/* Pages can be executed.  */
-
-/* Flags contain mapping type, sharing type and options.  */
-
-/* Mapping type (must choose one and only one of these).  */
-#ifdef __USE_BSD
-# define MAP_FILE	 0x0001	/* Mapped from a file or device.  */
-# define MAP_ANON	 0x0002	/* Allocated from anonymous virtual memory.  */
-# define MAP_TYPE	 0x000f	/* Mask for type field.  */
-# ifdef __USE_MISC
-#  define MAP_ANONYMOUS  MAP_ANON /* Linux name. */
-# endif
-#endif
-
-/* Sharing types (must choose one and only one of these).  */
-#ifdef __USE_BSD
-# define MAP_COPY	 0x0020	/* Virtual copy of region at mapping time.  */
-#endif
-#define	MAP_SHARED	 0x0010	/* Share changes.  */
-#define	MAP_PRIVATE	 0x0000	/* Changes private; copy pages on write.  */
-
-/* Other flags.  */
-#define	MAP_FIXED	 0x0100	/* Map address must be exactly as requested. */
-#ifdef __USE_BSD
-# define MAP_NOEXTEND	 0x0200	/* For MAP_FILE, don't change file size.  */
-# define MAP_HASSEMPHORE 0x0400	/* Region may contain semaphores.  */
-# define MAP_INHERIT	 0x0800	/* Region is retained after exec.  */
-#endif
-
-/* Advice to `madvise'.  */
-#ifdef __USE_BSD
-# define MADV_NORMAL	 0	/* No further special treatment.  */
-# define MADV_RANDOM	 1	/* Expect random page references.  */
-# define MADV_SEQUENTIAL 2	/* Expect sequential page references.  */
-# define MADV_WILLNEED	 3	/* Will need these pages.  */
-# define MADV_DONTNEED	 4	/* Don't need these pages.  */
-#endif
-
-/* The POSIX people had to invent similar names for the same things.  */
-#ifdef __USE_XOPEN2K
-# define POSIX_MADV_NORMAL	0 /* No further special treatment.  */
-# define POSIX_MADV_RANDOM	1 /* Expect random page references.  */
-# define POSIX_MADV_SEQUENTIAL	2 /* Expect sequential page references.  */
-# define POSIX_MADV_WILLNEED	3 /* Will need these pages.  */
-# define POSIX_MADV_DONTNEED	4 /* Don't need these pages.  */
-#endif
-
-/* Flags to `msync'.  */
-#define MS_ASYNC	1		/* Sync memory asynchronously.  */
-#define MS_SYNC		0		/* Synchronous memory sync.  */
-#define MS_INVALIDATE	2		/* Invalidate the caches.  */
-
-/* Flags for `mlockall' (can be OR'd together).  */
-#define MCL_CURRENT	1		/* Lock all currently mapped pages.  */
-#define MCL_FUTURE	2		/* Lock all additions to address
-					   space.  */

bits/types.h

@@ -1,199 +0,0 @@
-/* bits/types.h -- definitions of __*_t types underlying *_t types.
-   Copyright (C) 2002, 2003 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-/*
- * Never include this file directly; use <sys/types.h> instead.
- */
-
-#ifndef	_BITS_TYPES_H
-#define	_BITS_TYPES_H	1
-
-#include <features.h>
-#include <bits/wordsize.h>
-
-#define __need_size_t
-#include <stddef.h>
-
-/* Convenience types.  */
-typedef unsigned char __u_char;
-typedef unsigned short int __u_short;
-typedef unsigned int __u_int;
-typedef unsigned long int __u_long;
-
-/* Fixed-size types, underlying types depend on word size and compiler.  */
-typedef signed char __int8_t;
-typedef unsigned char __uint8_t;
-typedef signed short int __int16_t;
-typedef unsigned short int __uint16_t;
-typedef signed int __int32_t;
-typedef unsigned int __uint32_t;
-#if __WORDSIZE == 64
-typedef signed long int __int64_t;
-typedef unsigned long int __uint64_t;
-#elif defined __GLIBC_HAVE_LONG_LONG
-__extension__ typedef signed long long int __int64_t;
-__extension__ typedef unsigned long long int __uint64_t;
-#endif
-
-/* quad_t is also 64 bits.  */
-#if __WORDSIZE == 64
-typedef long int __quad_t;
-typedef unsigned long int __u_quad_t;
-#elif defined __GLIBC_HAVE_LONG_LONG
-__extension__ typedef long long int __quad_t;
-__extension__ typedef unsigned long long int __u_quad_t;
-#else
-typedef struct
-{
-  long __val[2];
-} __quad_t;
-typedef struct
-{
-  __u_long __val[2];
-} __u_quad_t;
-#endif
-
-
-/* The machine-dependent file <bits/typesizes.h> defines __*_T_TYPE
-   macros for each of the OS types we define below.  The definitions
-   of those macros must use the following macros for underlying types.
-   We define __S<SIZE>_TYPE and __U<SIZE>_TYPE for the signed and unsigned
-   variants of each of the following integer types on this machine.
-
-	16		-- "natural" 16-bit type (always short)
-	32		-- "natural" 32-bit type (always int)
-	64		-- "natural" 64-bit type (long or long long)
-	LONG32		-- 32-bit type, traditionally long
-	QUAD		-- 64-bit type, always long long
-	WORD		-- natural type of __WORDSIZE bits (int or long)
-	LONGWORD	-- type of __WORDSIZE bits, traditionally long
-
-   We distinguish WORD/LONGWORD, 32/LONG32, and 64/QUAD so that the
-   conventional uses of `long' or `long long' type modifiers match the
-   types we define, even when a less-adorned type would be the same size.
-   This matters for (somewhat) portably writing printf/scanf formats for
-   these types, where using the appropriate l or ll format modifiers can
-   make the typedefs and the formats match up across all GNU platforms.  If
-   we used `long' when it's 64 bits where `long long' is expected, then the
-   compiler would warn about the formats not matching the argument types,
-   and the programmer changing them to shut up the compiler would break the
-   program's portability.
-
-   Here we assume what is presently the case in all the GCC configurations
-   we support: long long is always 64 bits, long is always word/address size,
-   and int is always 32 bits.  */
-
-#define	__S16_TYPE		short int
-#define __U16_TYPE		unsigned short int
-#define	__S32_TYPE		int
-#define __U32_TYPE		unsigned int
-#define __SLONGWORD_TYPE	long int
-#define __ULONGWORD_TYPE	unsigned long int
-#if __WORDSIZE == 32
-# define __SQUAD_TYPE		long long int
-# define __UQUAD_TYPE		unsigned long long int
-# define __SWORD_TYPE		int
-# define __UWORD_TYPE		unsigned int
-# define __SLONG32_TYPE		long int
-# define __ULONG32_TYPE		unsigned long int
-# define __S64_TYPE		__quad_t
-# define __U64_TYPE		__u_quad_t
-#elif __WORDSIZE == 64
-# define __SQUAD_TYPE		long int
-# define __UQUAD_TYPE		unsigned long int
-# define __SWORD_TYPE		long int
-# define __UWORD_TYPE		unsigned long int
-# define __SLONG32_TYPE		int
-# define __ULONG32_TYPE		unsigned int
-# define __S64_TYPE		long int
-# define __U64_TYPE		unsigned long int
-#else
-# error
-#endif
-#include <bits/typesizes.h>	/* Defines __*_T_TYPE macros.  */
-
-/* We want __extension__ before typedef's that use nonstandard base types
-   such as `long long' in C89 mode.  */
-#define __STD_TYPE __extension__ typedef
-
-
-__STD_TYPE __DEV_T_TYPE __dev_t;	/* Type of device numbers.  */
-__STD_TYPE __UID_T_TYPE __uid_t;	/* Type of user identifications.  */
-__STD_TYPE __GID_T_TYPE __gid_t;	/* Type of group identifications.  */
-__STD_TYPE __INO_T_TYPE __ino_t;	/* Type of file serial numbers.  */
-__STD_TYPE __INO64_T_TYPE __ino64_t;	/* Type of file serial numbers (LFS).*/
-__STD_TYPE __MODE_T_TYPE __mode_t;	/* Type of file attribute bitmasks.  */
-__STD_TYPE __NLINK_T_TYPE __nlink_t;	/* Type of file link counts.  */
-__STD_TYPE __OFF_T_TYPE __off_t;	/* Type of file sizes and offsets.  */
-__STD_TYPE __OFF64_T_TYPE __off64_t;	/* Type of file sizes and offsets (LFS).  */
-__STD_TYPE __PID_T_TYPE __pid_t;	/* Type of process identifications.  */
-__STD_TYPE __FSID_T_TYPE __fsid_t;	/* Type of file system IDs.  */
-__STD_TYPE __CLOCK_T_TYPE __clock_t;	/* Type of CPU usage counts.  */
-__STD_TYPE __RLIM_T_TYPE __rlim_t;	/* Type for resource measurement.  */
-__STD_TYPE __RLIM64_T_TYPE __rlim64_t;	/* Type for resource measurement (LFS).  */
-__STD_TYPE __ID_T_TYPE __id_t;		/* General type for IDs.  */
-__STD_TYPE __TIME_T_TYPE __time_t;	/* Seconds since the Epoch.  */
-__STD_TYPE __USECONDS_T_TYPE __useconds_t; /* Count of microseconds.  */
-__STD_TYPE __SUSECONDS_T_TYPE __suseconds_t; /* Signed count of microseconds.  */
-
-__STD_TYPE __DADDR_T_TYPE __daddr_t;	/* The type of a disk address.  */
-__STD_TYPE __SWBLK_T_TYPE __swblk_t;	/* Type of a swap block maybe?  */
-__STD_TYPE __KEY_T_TYPE __key_t;	/* Type of an IPC key.  */
-
-/* Clock ID used in clock and timer functions.  */
-__STD_TYPE __CLOCKID_T_TYPE __clockid_t;
-
-/* Timer ID returned by `timer_create'.  */
-__STD_TYPE __TIMER_T_TYPE __timer_t;
-
-/* Type to represent block size.  */
-__STD_TYPE __BLKSIZE_T_TYPE __blksize_t;
-
-/* Types from the Large File Support interface.  */
-
-/* Type to count number of disk blocks.  */
-__STD_TYPE __BLKCNT_T_TYPE __blkcnt_t;
-__STD_TYPE __BLKCNT64_T_TYPE __blkcnt64_t;
-
-/* Type to count file system blocks.  */
-__STD_TYPE __FSBLKCNT_T_TYPE __fsblkcnt_t;
-__STD_TYPE __FSBLKCNT64_T_TYPE __fsblkcnt64_t;
-
-/* Type to count file system nodes.  */
-__STD_TYPE __FSFILCNT_T_TYPE __fsfilcnt_t;
-__STD_TYPE __FSFILCNT64_T_TYPE __fsfilcnt64_t;
-
-__STD_TYPE __SSIZE_T_TYPE __ssize_t; /* Type of a byte count, or error.  */
-
-/* These few don't really vary by system, they always correspond
-   to one of the other defined types.  */
-typedef __off64_t __loff_t;	/* Type of file sizes and offsets (LFS).  */
-typedef __quad_t *__qaddr_t;
-typedef char *__caddr_t;
-
-/* Duplicates info from stdint.h but this is used in unistd.h.  */
-__STD_TYPE __SWORD_TYPE __intptr_t;
-
-/* Duplicate info from sys/socket.h.  */
-__STD_TYPE __U32_TYPE __socklen_t;
-
-
-#undef __STD_TYPE
-
-#endif /* bits/types.h */

bits/waitstatus.h

@@ -1,104 +0,0 @@
-/* Definitions of status bits for `wait' et al.
-   Copyright (C) 1992, 1994, 1996, 1997, 2000 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-#if !defined _SYS_WAIT_H && !defined _STDLIB_H
-# error "Never include <bits/waitstatus.h> directly; use <sys/wait.h> instead."
-#endif
-
-
-/* Everything extant so far uses these same bits.  */
-
-
-/* If WIFEXITED(STATUS), the low-order 8 bits of the status.  */
-#define	__WEXITSTATUS(status)	(((status) & 0xff00) >> 8)
-
-/* If WIFSIGNALED(STATUS), the terminating signal.  */
-#define	__WTERMSIG(status)	((status) & 0x7f)
-
-/* If WIFSTOPPED(STATUS), the signal that stopped the child.  */
-#define	__WSTOPSIG(status)	__WEXITSTATUS(status)
-
-/* Nonzero if STATUS indicates normal termination.  */
-#define	__WIFEXITED(status)	(__WTERMSIG(status) == 0)
-
-/* Nonzero if STATUS indicates termination by a signal.  */
-#ifdef	__GNUC__
-# define __WIFSIGNALED(status) \
-  (__extension__ ({ int __status = (status);				      \
-		    !__WIFSTOPPED(__status) && !__WIFEXITED(__status); }))
-#else	/* Not GCC.  */
-# define __WIFSIGNALED(status)	(!__WIFSTOPPED(status) && !__WIFEXITED(status))
-#endif	/* GCC.  */
-
-/* Nonzero if STATUS indicates the child is stopped.  */
-#define	__WIFSTOPPED(status)	(((status) & 0xff) == 0x7f)
-
-/* Nonzero if STATUS indicates the child dumped core.  */
-#define	__WCOREDUMP(status)	((status) & __WCOREFLAG)
-
-/* Macros for constructing status values.  */
-#define	__W_EXITCODE(ret, sig)	((ret) << 8 | (sig))
-#define	__W_STOPCODE(sig)	((sig) << 8 | 0x7f)
-#define	__WCOREFLAG		0x80
-
-
-#ifdef	__USE_BSD
-
-# include <endian.h>
-
-union wait
-  {
-    int w_status;
-    struct
-      {
-# if	__BYTE_ORDER == __LITTLE_ENDIAN
-	unsigned int __w_termsig:7; /* Terminating signal.  */
-	unsigned int __w_coredump:1; /* Set if dumped core.  */
-	unsigned int __w_retcode:8; /* Return code if exited normally.  */
-	unsigned int:16;
-# endif				/* Little endian.  */
-# if	__BYTE_ORDER == __BIG_ENDIAN
-	unsigned int:16;
-	unsigned int __w_retcode:8;
-	unsigned int __w_coredump:1;
-	unsigned int __w_termsig:7;
-# endif				/* Big endian.  */
-      } __wait_terminated;
-    struct
-      {
-# if	__BYTE_ORDER == __LITTLE_ENDIAN
-	unsigned int __w_stopval:8; /* W_STOPPED if stopped.  */
-	unsigned int __w_stopsig:8; /* Stopping signal.  */
-	unsigned int:16;
-# endif				/* Little endian.  */
-# if	__BYTE_ORDER == __BIG_ENDIAN
-	unsigned int:16;
-	unsigned int __w_stopsig:8; /* Stopping signal.  */
-	unsigned int __w_stopval:8; /* W_STOPPED if stopped.  */
-# endif				/* Big endian.  */
-      } __wait_stopped;
-  };
-
-# define w_termsig	__wait_terminated.__w_termsig
-# define w_coredump	__wait_terminated.__w_coredump
-# define w_retcode	__wait_terminated.__w_retcode
-# define w_stopsig	__wait_stopped.__w_stopsig
-# define w_stopval	__wait_stopped.__w_stopval
-
-#endif	/* Use BSD.  */

c_stubs/Banner

@@ -0,0 +1 @@
+The C stubs add-on version 2.1.2.

c_stubs/COPYING.LIB

@@ -0,0 +1,482 @@
+		  GNU LIBRARY GENERAL PUBLIC LICENSE
+		       Version 2, June 1991
+
+ Copyright (C) 1991 Free Software Foundation, Inc.
+ 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ Everyone is permitted to copy and distribute verbatim copies
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+[This is the first released version of the library GPL.  It is
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+That's all there is to it!

c_stubs/ChangeLog

@@ -0,0 +1,42 @@
+2001-08-07  Jakub Jelinek  <jakub@redhat.com>
+
+	* gconv_stubs.c (__gconv_lookup_alias): Remove.
+	(__gconv_NOOP, __gconv_compare_alias, __gconv_release_cache,
+	__gconv_release_step): New.
+
+2001-06-07  Jakub Jelinek  <jakub@redhat.com>
+
+	* gconv_stubs.c (__gconv_lookup_alias): New.
+
+2000-02-27  Cristian Gafton  <gafton@redhat.com>
+
+	* gconv_stubs.c: Return __gconv_OK for:
+	__gconv_transform_ascii_internal
+	__gconv_transform_ucs2little_internal
+	__gconv_transform_utf16_internal
+	__gconv_transform_utf8_internal
+	__gconv_transform_ucs2_internal
+
+2000-02-25  Cristian Gafton  <gafton@redhat.com>
+
+	* gconv_stubs.c: add __c_stubs_is_compiled_in so we can detect when
+	the library is linked in.
+
+Wed Dec  8 13:47:25 1999  Ivan Brunello <ivan.brunello@tiscalinet.it>
+
+	* Makefile (extra-objs): Changed stubs.o to gconv_stubs.o.
+
+Sun Dec  5 11:32:17 1999  H.J. Lu  <hjl@gnu.org>
+
+	* gconv_stubs.c: Renamed from stubs.c.
+	Support glibc 2.1.x.
+
+Mon Aug 23 16:42:05 1999  H.J. Lu  <hjl@gnu.org>
+
+	* Banner: New.
+	* COPYING.LIB: Likewise.
+	* Makefile: Likewise.
+	* README: Likewise.
+	* configure: Likewise.
+	* stubs.c: Likewise.
+	* test-stdio.c: Likewise.

c_stubs/Makefile

@@ -0,0 +1,46 @@
+# Copyright (C) 1999 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Library General Public License as
+# published by the Free Software Foundation; either version 2 of the
+# License, or (at your option) any later version.
+
+# The GNU C Library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Library General Public License for more details.
+
+# You should have received a copy of the GNU Library General Public
+# License along with the GNU C Library; see the file COPYING.LIB.  If not,
+# write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+# Boston, MA 02111-1307, USA.
+
+#
+#	Sub-makefile for the C stub add-on library.
+#
+subdir	:= c_stubs
+
+tests-static := test-stdio
+tests := $(tests-static)
+
+libc_stubs-objs := gconv_stubs.o
+
+install-lib := libc_stubs.a
+non-lib.a := libc_stubs.a
+
+extra-objs := gconv_stubs.o libc_stubs.a
+
+include ../Makeconfig
+
+CPPFLAGS += -I../iconv
+
+include ../Rules
+
+$(objpfx)libc_stubs.a: $(addprefix $(objpfx), $(libc_stubs-objs))
+	-rm -f $@
+	$(CC) -nostdlib -nostartfiles -r -o $@ $^
+
+lib: $(objpfx)libc_stubs.a
+
+$(objpfx)test-stdio: $(objpfx)libc_stubs.a

c_stubs/README

@@ -0,0 +1,8 @@
+This is a stub add-on library for the GNU C library version 2.1.2 and
+above. It is used to create the smaller static binaries by stubbing
+out the gconv related functions. The resulting binaries may not have
+all the functionalities.
+
+H.J. Lu
+hjl@gnu.org
+12/05/1999

c_stubs/configure

@@ -0,0 +1,3 @@
+# This is only to keep the GNU C library configure mechanism happy.
+# This is a shell script fragment sourced by the main configure script.
+# We have nothing we need to add here.

c_stubs/gconv_stubs.c

@@ -0,0 +1,126 @@
+/* Provide gconv stub functions for the minimum static binaries.
+   Copyright (C) 1999, 2001, 2003, 2004 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <features.h>
+#include <string.h>
+#include <wchar.h>
+#include <bits/libc-lock.h>
+#if __GNUC_PREREQ(3, 3)
+# include <gconv_int.h>
+#else
+# include <gconv.h>
+#endif
+
+__libc_lock_define_initialized (, __gconv_lock)
+
+/* hack for self identification */
+int __c_stubs_is_compiled_in;
+
+/* Don't drag in the dynamic linker. */
+void *__libc_stack_end;
+
+int attribute_hidden
+__gconv_OK (void)
+{
+#if __GLIBC__ > 2 || __GLIBC_MINOR__ > 1
+  return __GCONV_OK;
+#else
+  return GCONV_OK;
+#endif
+}
+
+int attribute_hidden
+__gconv_NOCONV (void)
+{
+#if __GLIBC__ > 2 || __GLIBC_MINOR__ > 1
+  return __GCONV_NOCONV;
+#else
+  return GCONV_NOCONV;
+#endif
+}
+
+void attribute_hidden
+__gconv_NOOP (void)
+{
+}
+
+int
+internal_function
+__gconv_compare_alias (const char *name1, const char *name2)
+{
+  return strcmp (name1, name2);
+}
+
+wint_t
+__gconv_btwoc_ascii (struct __gconv_step *step, unsigned char c)
+{
+  if (c < 0x80)
+    return c;
+  else
+    return WEOF;
+}
+
+
+#if __GNUC_PREREQ(3, 3)
+# undef strong_alias
+# define strong_alias(impl, name) \
+  __typeof (name) name __attribute__ ((alias (#impl)))
+#endif
+
+strong_alias (__gconv_OK,
+	      __gconv_close_transform);
+strong_alias (__gconv_OK,
+	      __gconv_close);
+
+strong_alias (__gconv_NOCONV,
+	      __gconv);
+strong_alias (__gconv_NOCONV,
+	      __gconv_find_transform);
+strong_alias (__gconv_NOCONV,
+	      __gconv_open);
+
+/* These transformations should not fail in normal conditions */
+strong_alias (__gconv_OK,
+	      __gconv_transform_ascii_internal);
+strong_alias (__gconv_OK,
+	      __gconv_transform_utf16_internal);
+strong_alias (__gconv_OK,
+	      __gconv_transform_utf8_internal);
+strong_alias (__gconv_OK,
+	      __gconv_transform_ucs2_internal);
+
+/* We can assume no conversion for these ones */
+strong_alias (__gconv_NOCONV,
+	      __gconv_transform_internal_ascii);
+strong_alias (__gconv_NOCONV,
+	      __gconv_transform_internal_ucs2);
+strong_alias (__gconv_NOCONV,
+	      __gconv_transform_internal_ucs4);
+strong_alias (__gconv_NOCONV,
+	      __gconv_transform_internal_utf16);
+strong_alias (__gconv_NOCONV,
+	      __gconv_transform_internal_utf8);
+
+strong_alias (__gconv_NOCONV,
+	      __gconv_transliterate);
+
+strong_alias (__gconv_NOOP,
+	      __gconv_release_cache);
+strong_alias (__gconv_NOOP,
+	      __gconv_release_step);

c_stubs/test-stdio.c

@@ -0,0 +1,8 @@
+#include <stdio.h>
+
+int
+main (void)
+{
+  printf ("Hello world\n");
+  return 0;
+}

configure

@@ -5399,56 +5399,17 @@ echo $ECHO_N "checking for libunwind-support in compiler... $ECHO_C" >&6
 if test "${libc_cv_cc_with_libunwind+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
-      cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-#include <libunwind.h>
-int
-main ()
-{
 
-      unw_context_t uc;
-      unw_cursor_t c;
-      unw_getcontext (&uc);
-      unw_init_local (&c, &uc)
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
-  (eval $ac_link) 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  libc_cv_cc_with_libunwind=yes
-else
-  echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-libc_cv_cc_with_libunwind=no
-fi
-rm -f conftest.err conftest.$ac_objext \
-      conftest$ac_exeext conftest.$ac_ext
+    cat > conftest.c <<EOF
+int main (void) { return 0; }
+EOF
+    if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -static -o conftest \
+       conftest.c -v 2>&1 >/dev/null | grep -q " -lunwind "; then
+      libc_cv_cc_with_libunwind=yes
+    else
+      libc_cv_cc_with_libunwind=no
+    fi
+    rm -f conftest*
 fi
 echo "$as_me:$LINENO: result: $libc_cv_cc_with_libunwind" >&5
 echo "${ECHO_T}$libc_cv_cc_with_libunwind" >&6
@@ -6089,49 +6050,6 @@ _ACEOF
 
 fi
 
-case "${host_cpu}-${host_os}" in
-  cris*)
-    libc_cv_asm_line_sep='@'
-    cat >>confdefs.h <<_ACEOF
-#define ASM_LINE_SEP $libc_cv_asm_line_sep
-_ACEOF
-
-    ;;
-  hppa*linux*)
-  echo "$as_me:$LINENO: checking for assembler line separator" >&5
-echo $ECHO_N "checking for assembler line separator... $ECHO_C" >&6
-if test "${libc_cv_asm_line_sep+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-    cat > conftest.s <<EOF
- nop ; is_old_puffin
-EOF
-  if { ac_try='${CC-cc} -c $ASFLAGS conftest.s 1>&5'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-    libc_cv_asm_line_sep='!'
-  else
-    if test -z "$enable_hacker_mode"; then
-      echo "*** You need a newer assembler to compile glibc"
-      rm -f conftest*
-      exit 1
-    fi
-    libc_cv_asm_line_sep=';'
-  fi
-  rm -f conftest*
-fi
-echo "$as_me:$LINENO: result: $libc_cv_asm_line_sep" >&5
-echo "${ECHO_T}$libc_cv_asm_line_sep" >&6
-  cat >>confdefs.h <<_ACEOF
-#define ASM_LINE_SEP $libc_cv_asm_line_sep
-_ACEOF
-
-  ;;
-esac
-
 echo "$as_me:$LINENO: checking whether CFI directives are supported" >&5
 echo $ECHO_N "checking whether CFI directives are supported... $ECHO_C" >&6
 if test "${libc_cv_asm_cfi_directives+set}" = set; then
@@ -6842,15 +6760,10 @@ rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
 echo "${ECHO_T}$have_selinux" >&6
   fi
 
-  if test x$with_selinux = xauto ; then
+  if test x$with_selinux = xyes ; then
     if test x$have_selinux = xno ; then
-      { echo "$as_me:$LINENO: WARNING: Sufficiently new SELinux library not found" >&5
-echo "$as_me: WARNING: Sufficiently new SELinux library not found" >&2;}
-    fi
-  else
-    if test x$have_selinux = xno ; then
-      { { echo "$as_me:$LINENO: error: SELinux explicitly required, and SELinux library not found" >&5
-echo "$as_me: error: SELinux explicitly required, and SELinux library not found" >&2;}
+      { { echo "$as_me:$LINENO: error: SELinux explicitly required, but sufficiently recent SELinux library not found" >&5
+echo "$as_me: error: SELinux explicitly required, but sufficiently recent SELinux library not found" >&2;}
    { (exit 1); exit 1; }; }
     fi
   fi

configure.in

@@ -1260,13 +1260,17 @@ EOF
   fi
 
   AC_CACHE_CHECK(for libunwind-support in compiler,
-		 libc_cv_cc_with_libunwind, [dnl
-    AC_TRY_LINK([#include <libunwind.h>], [
-      unw_context_t uc;
-      unw_cursor_t c;
-      unw_getcontext (&uc);
-      unw_init_local (&c, &uc)],
-        libc_cv_cc_with_libunwind=yes, libc_cv_cc_with_libunwind=no)])
+		 libc_cv_cc_with_libunwind, [
+    cat > conftest.c <<EOF
+int main (void) { return 0; }
+EOF
+    if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -static -o conftest \
+       conftest.c -v 2>&1 >/dev/null | grep -q " -lunwind "; then
+      libc_cv_cc_with_libunwind=yes
+    else
+      libc_cv_cc_with_libunwind=no
+    fi
+    rm -f conftest*])
   AC_SUBST(libc_cv_cc_with_libunwind)
   if test $libc_cv_cc_with_libunwind = yes; then
     AC_DEFINE(HAVE_CC_WITH_LIBUNWIND)
@@ -1617,35 +1621,6 @@ elif test $libc_cv_asm_weakext_directive = yes; then
   AC_DEFINE(HAVE_ASM_WEAKEXT_DIRECTIVE)
 fi
 
-dnl The standard hppa assembler uses `;' to start comments and `!'
-dnl as a line separator.  CRIS uses `;' to start comments and `@' for
-dnl line separator.
-case "${host_cpu}-${host_os}" in
-  cris*)
-    libc_cv_asm_line_sep='@'
-    AC_DEFINE_UNQUOTED(ASM_LINE_SEP, $libc_cv_asm_line_sep)
-    ;;
-  hppa*linux*)
-  AC_CACHE_CHECK(for assembler line separator,
-		 libc_cv_asm_line_sep, [dnl
-  cat > conftest.s <<EOF
- nop ; is_old_puffin
-EOF
-  if AC_TRY_COMMAND(${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then
-    libc_cv_asm_line_sep='!'
-  else
-    if test -z "$enable_hacker_mode"; then
-      echo "*** You need a newer assembler to compile glibc"
-      rm -f conftest*
-      exit 1
-    fi
-    libc_cv_asm_line_sep=';'
-  fi
-  rm -f conftest*])
-  AC_DEFINE_UNQUOTED(ASM_LINE_SEP, $libc_cv_asm_line_sep)
-  ;;
-esac
-
 AC_CACHE_CHECK(whether CFI directives are supported, libc_cv_asm_cfi_directives, [dnl
 cat > conftest.s <<EOF
         .text

csu/elf-init.c

@@ -44,6 +44,24 @@ extern void (*__init_array_start []) (void) attribute_hidden;
 extern void (*__init_array_end []) (void) attribute_hidden;
 extern void (*__fini_array_start []) (void) attribute_hidden;
 extern void (*__fini_array_end []) (void) attribute_hidden;
+
+# if defined HAVE_VISIBILITY_ATTRIBUTE \
+     && (defined SHARED || defined LIBC_NONSHARED)
+#  define hidden_undef_2(x) #x
+#  define hidden_undef_1(x) hidden_undef_2 (x)
+#  define hidden_undef(x) \
+  __asm (hidden_undef_1 (ASM_GLOBAL_DIRECTIVE) " " #x); \
+  __asm (".hidden " #x);
+# else
+#  define hidden_undef(x)
+# endif
+
+hidden_undef (__preinit_array_start)
+hidden_undef (__preinit_array_end)
+hidden_undef (__init_array_start)
+hidden_undef (__init_array_end)
+hidden_undef (__fini_array_start)
+hidden_undef (__fini_array_end)
 #endif
 
 /* These function symbols are provided for the .init/.fini section entry

debug/Makefile

@@ -1,4 +1,4 @@
-# Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
+# Copyright (C) 1998, 1999, 2000, 2001, 2004 Free Software Foundation, Inc.
 # This file is part of the GNU C Library.
 
 # The GNU C Library is free software; you can redistribute it and/or
@@ -24,11 +24,26 @@ subdir	:= debug
 headers	:= execinfo.h
 distribute = sigcontextinfo.h register-dump.h frame.h
 
-routines := backtrace backtracesyms backtracesymsfd noophooks
+routines := backtrace backtracesyms backtracesymsfd noophooks \
+	    memcpy_chk memmove_chk mempcpy_chk memset_chk stpcpy_chk \
+	    strcat_chk strcpy_chk strncat_chk strncpy_chk \
+	    sprintf_chk vsprintf_chk snprintf_chk vsnprintf_chk \
+	    printf_chk fprintf_chk vprintf_chk vfprintf_chk \
+	    gets_chk chk_fail readonly-area
 
 CFLAGS-backtrace.c = -fno-omit-frame-pointer
+CFLAGS-sprintf_chk.c = -D_IO_MTSAFE_IO
+CFLAGS-snprintf_chk.c = -D_IO_MTSAFE_IO
+CFLAGS-vsprintf_chk.c = -D_IO_MTSAFE_IO
+CFLAGS-vsnprintf_chk.c = -D_IO_MTSAFE_IO
+CFLAGS-printf_chk.c = -D_IO_MTSAFE_IO $(exceptions)
+CFLAGS-fprintf_chk.c = -D_IO_MTSAFE_IO $(exceptions)
+CFLAGS-vprintf_chk.c = -D_IO_MTSAFE_IO $(exceptions)
+CFLAGS-vfprintf_chk.c = -D_IO_MTSAFE_IO $(exceptions)
+CFLAGS-gets_chk.c = -D_IO_MTSAFE_IO $(exceptions)
 
-tests = backtrace-tst
+tests = backtrace-tst tst-chk1 tst-chk2 tst-chk3 \
+	test-strcpy_chk test-stpcpy_chk
 
 extra-libs = libSegFault libpcprofile
 extra-libs-others = $(extra-libs)
@@ -57,7 +72,8 @@ include ../Rules
 
 $(objpfx)catchsegv: catchsegv.sh $(common-objpfx)soversions.mk \
 		    $(common-objpfx)config.make
-	sed -e 's|@VERSION@|$(version)|' -e 's|@SLIB@|$(slibdir)|' $< > $@.new
+	slibpfx=`echo $(slibdir)|sed 's/lib\(64\|\)$$/\\\\\\\\$$LIB/'`; \
+	sed -e 's|@VERSION@|$(version)|' -e "s|@SLIB@|$$slibpfx|" $< > $@.new
 	chmod 555 $@.new
 	mv -f $@.new $@
 

debug/Versions

@@ -10,4 +10,12 @@ libc {
     # These are to support some gcc features.
     __cyg_profile_func_enter; __cyg_profile_func_exit;
   }
+  GLIBC_2.3.4 {
+    __chk_fail;
+    __memcpy_chk; __memmove_chk; __mempcpy_chk; __memset_chk; __stpcpy_chk;
+    __strcat_chk; __strcpy_chk; __strncat_chk; __strncpy_chk;
+    __sprintf_chk; __vsprintf_chk; __snprintf_chk; __vsnprintf_chk;
+    __printf_chk; __fprintf_chk; __vprintf_chk; __vfprintf_chk;
+    __gets_chk;
+  }
 }

debug/catchsegv.sh

@@ -1,5 +1,5 @@
 #! /bin/sh
-# Copyright (C) 1998, 1999, 2001, 2003 Free Software Foundation, Inc.
+# Copyright (C) 1998, 1999, 2001, 2003, 2004 Free Software Foundation, Inc.
 # This file is part of the GNU C Library.
 # Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
 
@@ -39,7 +39,7 @@ if test $# -eq 0; then
       ;;
     --v | --ve | --ver | --vers | --versi | --versio | --version)
       echo 'catchsegv (GNU libc) @VERSION@'
-      echo 'Copyright (C) 2003 Free Software Foundation, Inc.
+      echo 'Copyright (C) 2004 Free Software Foundation, Inc.
 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 Written by Ulrich Drepper.'
@@ -50,9 +50,7 @@ Written by Ulrich Drepper.'
   esac
 fi
 
-segv_output=`basename "$prog"`.segv.$$
-# Make sure this output file does not exist.
-rm -f "$segv_output"
+segv_output=`mktemp ${TMPDIR:-/tmp}/segv_output.XXXXXX` || exit
 
 # Redirect stderr to avoid termination message from shell.
 (exec 3>&2 2>/dev/null
@@ -65,7 +63,7 @@ exval=$?
 # Check for output.  Even if the program terminated correctly it might
 # be that a minor process (clone) failed.  Therefore we do not check the
 # exit code.
-if test -f "$segv_output"; then
+if test -s "$segv_output"; then
   # The program caught a signal.  The output is in the file with the
   # name we have in SEGFAULT_OUTPUT_NAME.  In the output the names of
   # functions in shared objects are available, but names in the static
@@ -102,7 +100,7 @@ if test -f "$segv_output"; then
 	    ;;
      esac
    done)
-   rm -f "$segv_output"
 fi
+rm -f "$segv_output"
 
 exit $exval

debug/chk_fail.c

@@ -1,4 +1,5 @@
-/* Copyright (C) 1999 Free Software Foundation, Inc.
+
+/* Copyright (C) 2004 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -16,14 +17,14 @@
    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
    02111-1307 USA.  */
 
+#include <stdio.h>
 #include <stdlib.h>
 
 
-/* We define only thr alias introduced in ISO C99 because _exit itself
-   is a system call.  */
 void
-_Exit (status)
-     int status;
+__attribute__ ((noreturn))
+__chk_fail (void)
 {
-  _exit (status);
+  __libc_fatal ("*** buffer overflow detected ***\n");
 }
+libc_hidden_def (__chk_fail)

debug/execinfo.h

@@ -25,7 +25,7 @@ __BEGIN_DECLS
 
 /* Store up to SIZE return address of the current program state in
    ARRAY and return the exact number of values stored.  */
-extern int backtrace (void **__array, int __size) __THROW __nonnull ((1));
+extern int backtrace (void **__array, int __size) __nonnull ((1));
 
 
 /* Return names of functions from the backtrace list in ARRAY in a newly

debug/fprintf_chk.c

@@ -0,0 +1,45 @@
+/* Copyright (C) 1991, 1995, 1996, 1997, 2001, 2004
+   Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <stdarg.h>
+#include <stdio.h>
+#include "../libio/libioP.h"
+
+
+/* Write formatted output to FP from the format string FORMAT.  */
+int
+__fprintf_chk (FILE *fp, int flag, const char *format, ...)
+{
+  va_list ap;
+  int done;
+
+  _IO_acquire_lock (fp);
+  if (flag > 0)
+    fp->_flags2 |= _IO_FLAGS2_FORTIFY;
+
+  va_start (ap, format);
+  done = vfprintf (fp, format, ap);
+  va_end (ap);
+
+  if (flag > 0)
+    fp->_flags2 &= ~_IO_FLAGS2_FORTIFY;
+  _IO_release_lock (fp);
+
+  return done;
+}

debug/gets_chk.c

@@ -0,0 +1,77 @@
+/* Copyright (C) 1993, 1996, 1997, 1998, 2002, 2003, 2004
+   Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.
+
+   As a special exception, if you link the code in this file with
+   files compiled with a GNU compiler to produce an executable,
+   that does not cause the resulting executable to be covered by
+   the GNU Lesser General Public License.  This exception does not
+   however invalidate any other reasons why the executable file
+   might be covered by the GNU Lesser General Public License.
+   This exception applies to code released by its copyright holders
+   in files containing the exception.  */
+
+#include "../libio/libioP.h"
+#include <limits.h>
+
+char *
+__gets_chk (char *buf, size_t size)
+{
+  _IO_size_t count;
+  int ch;
+  char *retval;
+
+  if (size == 0)
+    __chk_fail ();
+
+  _IO_acquire_lock (_IO_stdin);
+  ch = _IO_getc_unlocked (_IO_stdin);
+  if (ch == EOF)
+    {
+      retval = NULL;
+      goto unlock_return;
+    }
+  if (ch == '\n')
+    count = 0;
+  else
+    {
+      /* This is very tricky since a file descriptor may be in the
+	 non-blocking mode. The error flag doesn't mean much in this
+	 case. We return an error only when there is a new error. */
+      int old_error = _IO_stdin->_IO_file_flags & _IO_ERR_SEEN;
+      _IO_stdin->_IO_file_flags &= ~_IO_ERR_SEEN;
+      buf[0] = (char) ch;
+      count = INTUSE(_IO_getline) (_IO_stdin, buf + 1, size - 1, '\n', 0) + 1;
+      if (_IO_stdin->_IO_file_flags & _IO_ERR_SEEN)
+	{
+	  retval = NULL;
+	  goto unlock_return;
+	}
+      else
+	_IO_stdin->_IO_file_flags |= old_error;
+    }
+  if (count >= size)
+    __chk_fail ();
+  buf[count] = 0;
+  retval = buf;
+unlock_return:
+  _IO_release_lock (_IO_stdin);
+  return retval;
+}
+
+link_warning (__gets_chk, "the `gets' function is dangerous and should not be used.")

debug/printf_chk.c

@@ -0,0 +1,45 @@
+/* Copyright (C) 1991, 1995, 1996, 1997, 2001, 2004
+   Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <stdarg.h>
+#include <stdio.h>
+#include "../libio/libioP.h"
+
+
+/* Write formatted output to stdout from the format string FORMAT.  */
+int
+__printf_chk (int flag, const char *format, ...)
+{
+  va_list ap;
+  int done;
+
+  _IO_acquire_lock (stdout);
+  if (flag > 0)
+    stdout->_flags2 |= _IO_FLAGS2_FORTIFY;
+
+  va_start (ap, format);
+  done = vfprintf (stdout, format, ap);
+  va_end (ap);
+
+  if (flag > 0)
+    stdout->_flags2 &= ~_IO_FLAGS2_FORTIFY;
+  _IO_release_lock (stdout);
+
+  return done;
+}

debug/snprintf_chk.c

@@ -1,4 +1,4 @@
-/* Copyright (C) 1999, 2000, 2002 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1995, 1997, 1998, 2004 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -16,25 +16,23 @@
    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
    02111-1307 USA.  */
 
-#include <fcntl.h>
 #include <stdarg.h>
-#include <unistd.h>
+#include <stdio.h>
 
+
+/* Write formatted output into S, according to the format
+   string FORMAT, writing no more than MAXLEN characters.  */
+/* VARARGS5 */
 int
-__open (const char *file, int oflag, ...)
+__snprintf_chk (char *s, size_t maxlen, int flags, size_t slen,
+		const char *format, ...)
 {
-  int mode = 0;
+  va_list arg;
+  int done;
 
-  if (oflag & O_CREAT)
-    {
-      va_list arg;
-      va_start (arg, oflag);
-      mode = va_arg (arg, int);
-      va_end (arg);
-    }
+  va_start (arg, format);
+  done = __vsnprintf_chk (s, maxlen, flags, slen, format, arg);
+  va_end (arg);
 
-  return open (file, oflag, mode);
+  return done;
 }
-libc_hidden_def (__open)
-strong_alias (__open, __libc_open)
-libc_hidden_def (__libc_open)

debug/sprintf_chk.c

@@ -1,4 +1,4 @@
-/* Copyright (C) 1999, 2000 Free Software Foundation, Inc.
+/* Copyright (C) 1991,1995,1997,1998,2002,2004 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -17,21 +17,19 @@
    02111-1307 USA.  */
 
 #include <stdarg.h>
-#include <sys/resource.h>
+#include <stdio.h>
 
-long int
-__ulimit (int cmd, ...)
+/* Write formatted output into S, according to the format string FORMAT.  */
+/* VARARGS4 */
+int
+__sprintf_chk (char *s, int flags, size_t slen, const char *format, ...)
 {
-  va_list va;
-  long int arg;
-  long int res;
+  va_list arg;
+  int done;
 
-  va_start (va, cmd);
-  arg = va_arg (va, long int);
+  va_start (arg, format);
+  done = __vsprintf_chk (s, flags, slen, format, arg);
+  va_end (arg);
 
-  res = ulimit (cmd, arg);
-
-  va_end (va);
-
-  return res;
+  return done;
 }

debug/test-stpcpy_chk.c

@@ -0,0 +1,46 @@
+/* Test and measure stpcpy checking functions.
+   Copyright (C) 1999, 2002, 2004 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Written by Jakub Jelinek <jakub@redhat.com>, 1999.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#define STRCPY_RESULT(dst, len) ((dst) + (len))
+#define TEST_MAIN
+#include "../string/test-string.h"
+
+extern void __attribute__ ((noreturn)) __chk_fail (void);
+char *simple_stpcpy_chk (char *, const char *, size_t);
+extern char *normal_stpcpy (char *, const char *, size_t)
+  __asm ("stpcpy");
+extern char *__stpcpy_chk (char *, const char *, size_t);
+
+IMPL (simple_stpcpy_chk, 0)
+IMPL (normal_stpcpy, 1)
+IMPL (__stpcpy_chk, 2)
+
+char *
+simple_stpcpy_chk (char *dst, const char *src, size_t len)
+{
+  if (! len)
+    __chk_fail ();
+  while ((*dst++ = *src++) != '\0')
+    if (--len == 0)
+      __chk_fail ();
+  return dst - 1;
+}
+
+#include "test-strcpy_chk.c"

debug/test-strcpy_chk.c

@@ -0,0 +1,387 @@
+/* Test and measure __strcpy_chk functions.
+   Copyright (C) 1999, 2002, 2003, 2004 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Written by Jakub Jelinek <jakub@redhat.com>, 1999.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef STRCPY_RESULT
+# define STRCPY_RESULT(dst, len) dst
+# define TEST_MAIN
+# include "../string/test-string.h"
+
+extern void __attribute__ ((noreturn)) __chk_fail (void);
+char *simple_strcpy_chk (char *, const char *, size_t);
+extern char *normal_strcpy (char *, const char *, size_t)
+  __asm ("strcpy");
+extern char *__strcpy_chk (char *, const char *, size_t);
+
+IMPL (simple_strcpy_chk, 0)
+IMPL (normal_strcpy, 1)
+IMPL (__strcpy_chk, 2)
+
+char *
+simple_strcpy_chk (char *dst, const char *src, size_t len)
+{
+  char *ret = dst;
+  if (! len)
+    __chk_fail ();
+  while ((*dst++ = *src++) != '\0')
+    if (--len == 0)
+      __chk_fail ();
+  return ret;
+}
+#endif
+
+#include <fcntl.h>
+#include <paths.h>
+#include <setjmp.h>
+#include <signal.h>
+
+volatile int chk_fail_ok;
+jmp_buf chk_fail_buf;
+
+static void
+handler (int sig)
+{
+  if (chk_fail_ok)
+    {
+      chk_fail_ok = 0;
+      longjmp (chk_fail_buf, 1);
+    }
+  else
+    _exit (127);
+}
+
+typedef char *(*proto_t) (char *, const char *, size_t);
+
+static void
+do_one_test (impl_t *impl, char *dst, const char *src,
+	     size_t len, size_t dlen)
+{
+  char *res;
+  if (dlen <= len)
+    {
+      if (impl->test == 1)
+	return;
+
+      chk_fail_ok = 1;
+      if (setjmp (chk_fail_buf) == 0)
+	{
+	  res = CALL (impl, dst, src, dlen);
+	  printf ("*** Function %s (%zd; %zd) did not __chk_fail\n",
+		  impl->name, len, dlen);
+	  chk_fail_ok = 0;
+	  ret = 1;
+	}
+      return;
+    }
+  else
+    res = CALL (impl, dst, src, dlen);
+
+  if (res != STRCPY_RESULT (dst, len))
+    {
+      printf ("Wrong result in function %s %p %p\n", impl->name,
+	      res, STRCPY_RESULT (dst, len));
+      ret = 1;
+      return;
+    }
+
+  if (strcmp (dst, src) != 0)
+    {
+      printf ("Wrong result in function %s dst \"%s\" src \"%s\"\n",
+	      impl->name, dst, src);
+      ret = 1;
+      return;
+    }
+
+  if (HP_TIMING_AVAIL)
+    {
+      hp_timing_t start __attribute ((unused));
+      hp_timing_t stop __attribute ((unused));;
+      hp_timing_t best_time = ~ (hp_timing_t) 0;
+      size_t i;
+
+      for (i = 0; i < 32; ++i)
+	{
+	  HP_TIMING_NOW (start);
+	  CALL (impl, dst, src, dlen);
+	  HP_TIMING_NOW (stop);
+	  HP_TIMING_BEST (best_time, start, stop);
+	}
+
+      printf ("\t%zd", (size_t) best_time);
+    }
+}
+
+static void
+do_test (size_t align1, size_t align2, size_t len, size_t dlen, int max_char)
+{
+  size_t i;
+  char *s1, *s2;
+
+  align1 &= 7;
+  if (align1 + len >= page_size)
+    return;
+
+  align2 &= 7;
+  if (align2 + len >= page_size)
+    return;
+
+  s1 = buf1 + align1;
+  s2 = buf2 + align2;
+
+  for (i = 0; i < len; i++)
+    s1[i] = 32 + 23 * i % (max_char - 32);
+  s1[len] = 0;
+
+  if (HP_TIMING_AVAIL && dlen > len)
+    printf ("Length %4zd, alignment %2zd/%2zd:", len, align1, align2);
+
+  FOR_EACH_IMPL (impl, 0)
+    do_one_test (impl, s2, s1, len, dlen);
+
+  if (HP_TIMING_AVAIL && dlen > len)
+    putchar ('\n');
+}
+
+static void
+do_random_tests (void)
+{
+  size_t i, j, n, align1, align2, len, dlen;
+  unsigned char *p1 = buf1 + page_size - 512;
+  unsigned char *p2 = buf2 + page_size - 512;
+  unsigned char *res;
+
+  for (n = 0; n < ITERATIONS; n++)
+    {
+      align1 = random () & 31;
+      if (random () & 1)
+	align2 = random () & 31;
+      else
+	align2 = align1 + (random () & 24);
+      len = random () & 511;
+      j = align1;
+      if (align2 > j)
+	j = align2;
+      if (len + j >= 511)
+	len = 510 - j - (random () & 7);
+      j = len + align1 + 64;
+      if (j > 512)
+	j = 512;
+      for (i = 0; i < j; i++)
+	{
+	  if (i == len + align1)
+	    p1[i] = 0;
+	  else
+	    {
+	      p1[i] = random () & 255;
+	      if (i >= align1 && i < len + align1 && !p1[i])
+		p1[i] = (random () & 127) + 3;
+	    }
+	}
+
+      switch (random () & 7)
+	{
+	case 0:
+	  dlen = len - (random () & 31);
+	  if (dlen > len)
+	    dlen = len;
+	  break;
+	case 1:
+	  dlen = (size_t) -1;
+	  break;
+	case 2:
+	  dlen = len + 1 + (random () & 65535);
+	  break;
+	case 3:
+	  dlen = len + 1 + (random () & 255);
+	  break;
+	case 4:
+	  dlen = len + 1 + (random () & 31);
+	  break;
+	case 5:
+	  dlen = len + 1 + (random () & 7);
+	  break;
+	case 6:
+	  dlen = len + 1 + (random () & 3);
+	  break;
+	default:
+	  dlen = len + 1;
+	  break;
+	}
+
+      FOR_EACH_IMPL (impl, 1)
+	{
+	  if (dlen <= len)
+	    {
+	      if (impl->test != 1)
+		{
+		  chk_fail_ok = 1;
+		  if (setjmp (chk_fail_buf) == 0)
+		    {
+		      res = CALL (impl, p2 + align2, p1 + align1, dlen);
+		      printf ("Iteration %zd - did not __chk_fail\n", n);
+		      chk_fail_ok = 0;
+		      ret = 1;
+		    }
+		}
+	      continue;
+	    }
+	  memset (p2 - 64, '\1', 512 + 64);
+	  res = CALL (impl, p2 + align2, p1 + align1, dlen);
+	  if (res != STRCPY_RESULT (p2 + align2, len))
+	    {
+	      printf ("\
+Iteration %zd - wrong result in function %s (%zd, %zd, %zd) %p != %p\n",
+		      n, impl->name, align1, align2, len, res,
+		      STRCPY_RESULT (p2 + align2, len));
+	      ret = 1;
+	    }
+	  for (j = 0; j < align2 + 64; ++j)
+	    {
+	      if (p2[j - 64] != '\1')
+		{
+		  printf ("\
+Iteration %zd - garbage before, %s (%zd, %zd, %zd)\n",
+			  n, impl->name, align1, align2, len);
+		  ret = 1;
+		  break;
+		}
+	    }
+	  for (j = align2 + len + 1; j < 512; ++j)
+	    {
+	      if (p2[j] != '\1')
+		{
+		  printf ("\
+Iteration %zd - garbage after, %s (%zd, %zd, %zd)\n",
+			  n, impl->name, align1, align2, len);
+		  ret = 1;
+		  break;
+		}
+	    }
+	  if (memcmp (p1 + align1, p2 + align2, len + 1))
+	    {
+	      printf ("\
+Iteration %zd - different strings, %s (%zd, %zd, %zd)\n",
+		      n, impl->name, align1, align2, len);
+	      ret = 1;
+	    }
+	}
+    }
+}
+
+int
+test_main (void)
+{
+  size_t i;
+
+  struct sigaction sa;
+  sa.sa_handler = handler;
+  sa.sa_flags = 0;
+  sigemptyset (&sa.sa_mask);
+
+  sigaction (SIGABRT, &sa, NULL);
+
+  /* Avoid all the buffer overflow messages on stderr.  */
+  int fd = open (_PATH_DEVNULL, O_WRONLY);
+  if (fd == -1)
+    close (STDERR_FILENO);
+  else
+    {
+      dup2 (fd, STDERR_FILENO);
+      close (fd);
+    }
+  setenv ("LIBC_FATAL_STDERR_", "1", 1);
+
+  test_init ();
+
+  printf ("%23s", "");
+  FOR_EACH_IMPL (impl, 0)
+    printf ("\t%s", impl->name);
+  putchar ('\n');
+
+  for (i = 0; i < 16; ++i)
+    {
+      do_test (0, 0, i, i + 1, 127);
+      do_test (0, 0, i, i + 1, 255);
+      do_test (0, i, i, i + 1, 127);
+      do_test (i, 0, i, i + 1, 255);
+    }
+
+  for (i = 1; i < 8; ++i)
+    {
+      do_test (0, 0, 8 << i, (8 << i) + 1, 127);
+      do_test (8 - i, 2 * i, (8 << i), (8 << i) + 1, 127);
+    }
+
+  for (i = 1; i < 8; ++i)
+    {
+      do_test (i, 2 * i, (8 << i), (8 << i) + 1, 127);
+      do_test (2 * i, i, (8 << i), (8 << i) + 1, 255);
+      do_test (i, i, (8 << i), (8 << i) + 1, 127);
+      do_test (i, i, (8 << i), (8 << i) + 1, 255);
+    }
+
+  for (i = 0; i < 16; ++i)
+    {
+      do_test (0, 0, i, i + 256, 127);
+      do_test (0, 0, i, i + 256, 255);
+      do_test (0, i, i, i + 256, 127);
+      do_test (i, 0, i, i + 256, 255);
+    }
+
+  for (i = 1; i < 8; ++i)
+    {
+      do_test (0, 0, 8 << i, (8 << i) + 256, 127);
+      do_test (8 - i, 2 * i, (8 << i), (8 << i) + 256, 127);
+    }
+
+  for (i = 1; i < 8; ++i)
+    {
+      do_test (i, 2 * i, (8 << i), (8 << i) + 256, 127);
+      do_test (2 * i, i, (8 << i), (8 << i) + 256, 255);
+      do_test (i, i, (8 << i), (8 << i) + 256, 127);
+      do_test (i, i, (8 << i), (8 << i) + 256, 255);
+    }
+
+  for (i = 0; i < 16; ++i)
+    {
+      do_test (0, 0, i, i, 127);
+      do_test (0, 0, i, i + 2, 255);
+      do_test (0, i, i, i + 3, 127);
+      do_test (i, 0, i, i + 4, 255);
+    }
+
+  for (i = 1; i < 8; ++i)
+    {
+      do_test (0, 0, 8 << i, (8 << i) - 15, 127);
+      do_test (8 - i, 2 * i, (8 << i), (8 << i) + 5, 127);
+    }
+
+  for (i = 1; i < 8; ++i)
+    {
+      do_test (i, 2 * i, (8 << i), (8 << i) + i, 127);
+      do_test (2 * i, i, (8 << i), (8 << i) + (i - 1), 255);
+      do_test (i, i, (8 << i), (8 << i) + i + 2, 127);
+      do_test (i, i, (8 << i), (8 << i) + i + 3, 255);
+    }
+
+  do_random_tests ();
+  return ret;
+}
+
+#include "../test-skeleton.c"

debug/tst-chk1.c

@@ -0,0 +1,495 @@
+/* Copyright (C) 2004 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <fcntl.h>
+#include <paths.h>
+#include <setjmp.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+char *temp_filename;
+static void do_prepare (void);
+static int do_test (void);
+#define PREPARE(argc, argv) do_prepare ()
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
+
+static void
+do_prepare (void)
+{
+  int temp_fd = create_temp_file ("tst-chk1.", &temp_filename);
+  if (temp_fd == -1)
+    {
+      printf ("cannot create temporary file: %m\n");
+      exit (1);
+    }
+
+  const char *strs = "abcdefgh\nABCDEFGHI\nabcdefghij\nABCDEFGHIJ";
+  if (write (temp_fd, strs, strlen (strs)) != strlen (strs))
+    {
+      puts ("could not write test strings into file");
+      unlink (temp_filename);
+      exit (1);
+    }
+}
+
+volatile int chk_fail_ok;
+volatile int ret;
+jmp_buf chk_fail_buf;
+
+static void
+handler (int sig)
+{
+  if (chk_fail_ok)
+    {
+      chk_fail_ok = 0;
+      longjmp (chk_fail_buf, 1);
+    }
+  else
+    _exit (127);
+}
+
+char buf[10];
+volatile size_t l0;
+volatile char *p;
+const char *str1 = "JIHGFEDCBA";
+const char *str2 = "F";
+const char *str3 = "%s%n%s%n";
+const char *str4 = "Hello, ";
+const char *str5 = "World!\n";
+char buf2[10] = "%s";
+int num1 = 67;
+int num2 = 987654;
+
+#define FAIL() \
+  do { printf ("Failure on line %d\n", __LINE__); ret = 1; } while (0)
+#define CHK_FAIL_START \
+  chk_fail_ok = 1;				\
+  if (! setjmp (chk_fail_buf))			\
+    {
+#define CHK_FAIL_END \
+      chk_fail_ok = 0;				\
+      FAIL ();					\
+    }
+#if __USE_FORTIFY_LEVEL >= 2
+#define CHK_FAIL2_START CHK_FAIL_START
+#define CHK_FAIL2_END CHK_FAIL_END
+#else
+#define CHK_FAIL2_START
+#define CHK_FAIL2_END
+#endif
+
+static int
+do_test (void)
+{
+  struct sigaction sa;
+  sa.sa_handler = handler;
+  sa.sa_flags = 0;
+  sigemptyset (&sa.sa_mask);
+
+  sigaction (SIGABRT, &sa, NULL);
+
+  /* Avoid all the buffer overflow messages on stderr.  */
+  int fd = open (_PATH_DEVNULL, O_WRONLY);
+  if (fd == -1)
+    close (STDERR_FILENO);
+  else
+    {
+      dup2 (fd, STDERR_FILENO);
+      close (fd);
+    }
+  setenv ("LIBC_FATAL_STDERR_", "1", 1);
+
+  struct A { char buf1[9]; char buf2[1]; } a;
+
+  printf ("Test checking routines at fortify level %d\n",
+#ifdef __USE_FORTIFY_LEVEL
+	  (int) __USE_FORTIFY_LEVEL
+#else
+	  0
+#endif
+	  );
+
+  /* These ops can be done without runtime checking of object size.  */
+  memcpy (buf, "abcdefghij", 10);
+  memmove (buf + 1, buf, 9);
+  if (memcmp (buf, "aabcdefghi", 10))
+    FAIL ();
+
+  if (mempcpy (buf + 5, "abcde", 5) != buf + 10 || memcmp (buf, "aabcdabcde", 10))
+    FAIL ();
+
+  memset (buf + 8, 'j', 2);
+  if (memcmp (buf, "aabcdabcjj", 10))
+    FAIL ();
+
+  strcpy (buf + 4, "EDCBA");
+  if (memcmp (buf, "aabcEDCBA", 10))
+    FAIL ();
+
+  if (stpcpy (buf + 8, "F") != buf + 9 || memcmp (buf, "aabcEDCBF", 10))
+    FAIL ();
+
+  strncpy (buf + 6, "X", 4);
+  if (memcmp (buf, "aabcEDX\0\0", 10))
+    FAIL ();
+
+  if (sprintf (buf + 7, "%s", "67") != 2 || memcmp (buf, "aabcEDX67", 10))
+    FAIL ();
+
+  if (snprintf (buf + 7, 3, "%s", "987654") != 6
+      || memcmp (buf, "aabcEDX98", 10))
+    FAIL ();
+
+  /* These ops need runtime checking, but shouldn't __chk_fail.  */
+  memcpy (buf, "abcdefghij", l0 + 10);
+  memmove (buf + 1, buf, l0 + 9);
+  if (memcmp (buf, "aabcdefghi", 10))
+    FAIL ();
+
+  if (mempcpy (buf + 5, "abcde", l0 + 5) != buf + 10 || memcmp (buf, "aabcdabcde", 10))
+    FAIL ();
+
+  memset (buf + 8, 'j', l0 + 2);
+  if (memcmp (buf, "aabcdabcjj", 10))
+    FAIL ();
+
+  strcpy (buf + 4, str1 + 5);
+  if (memcmp (buf, "aabcEDCBA", 10))
+    FAIL ();
+
+  if (stpcpy (buf + 8, str2) != buf + 9 || memcmp (buf, "aabcEDCBF", 10))
+    FAIL ();
+
+  strncpy (buf + 6, "X", l0 + 4);
+  if (memcmp (buf, "aabcEDX\0\0", 10))
+    FAIL ();
+
+  if (sprintf (buf + 7, "%d", num1) != 2 || memcmp (buf, "aabcEDX67", 10))
+    FAIL ();
+
+  if (snprintf (buf + 7, 3, "%d", num2) != 6 || memcmp (buf, "aabcEDX98", 10))
+    FAIL ();
+
+  buf[l0 + 8] = '\0';
+  strcat (buf, "A");
+  if (memcmp (buf, "aabcEDX9A", 10))
+    FAIL ();
+
+  buf[l0 + 7] = '\0';
+  strncat (buf, "ZYXWV", l0 + 2);
+  if (memcmp (buf, "aabcEDXZY", 10))
+    FAIL ();
+
+  memcpy (a.buf1, "abcdefghij", l0 + 10);
+  memmove (a.buf1 + 1, a.buf1, l0 + 9);
+  if (memcmp (a.buf1, "aabcdefghi", 10))
+    FAIL ();
+
+  if (mempcpy (a.buf1 + 5, "abcde", l0 + 5) != a.buf1 + 10
+      || memcmp (a.buf1, "aabcdabcde", 10))
+    FAIL ();
+
+  memset (a.buf1 + 8, 'j', l0 + 2);
+  if (memcmp (a.buf1, "aabcdabcjj", 10))
+    FAIL ();
+
+#if __USE_FORTIFY_LEVEL < 2 || !__GNUC_PREREQ (4, 0)
+  /* The following tests are supposed to crash with -D_FORTIFY_SOURCE=2
+     and sufficient GCC support, as the string operations overflow
+     from a.buf1 into a.buf2.  */
+  strcpy (a.buf1 + 4, str1 + 5);
+  if (memcmp (a.buf1, "aabcEDCBA", 10))
+    FAIL ();
+
+  if (stpcpy (a.buf1 + 8, str2) != a.buf1 + 9 || memcmp (a.buf1, "aabcEDCBF", 10))
+    FAIL ();
+
+  strncpy (a.buf1 + 6, "X", l0 + 4);
+  if (memcmp (a.buf1, "aabcEDX\0\0", 10))
+    FAIL ();
+
+  if (sprintf (a.buf1 + 7, "%d", num1) != 2 || memcmp (a.buf1, "aabcEDX67", 10))
+    FAIL ();
+
+  if (snprintf (a.buf1 + 7, 3, "%d", num2) != 6
+      || memcmp (a.buf1, "aabcEDX98", 10))
+    FAIL ();
+
+  a.buf1[l0 + 8] = '\0';
+  strcat (a.buf1, "A");
+  if (memcmp (a.buf1, "aabcEDX9A", 10))
+    FAIL ();
+
+  a.buf1[l0 + 7] = '\0';
+  strncat (a.buf1, "ZYXWV", l0 + 2);
+  if (memcmp (a.buf1, "aabcEDXZY", 10))
+    FAIL ();
+
+#endif
+
+#if __USE_FORTIFY_LEVEL >= 1
+  /* Now check if all buffer overflows are caught at runtime.  */
+
+  CHK_FAIL_START
+  memcpy (buf + 1, "abcdefghij", l0 + 10);
+  CHK_FAIL_END
+
+  CHK_FAIL_START
+  memmove (buf + 2, buf + 1, l0 + 9);
+  CHK_FAIL_END
+
+  CHK_FAIL_START
+  p = mempcpy (buf + 6, "abcde", l0 + 5);
+  CHK_FAIL_END
+
+  CHK_FAIL_START
+  memset (buf + 9, 'j', l0 + 2);
+  CHK_FAIL_END
+
+  CHK_FAIL_START
+  strcpy (buf + 5, str1 + 5);
+  CHK_FAIL_END
+
+  CHK_FAIL_START
+  p = stpcpy (buf + 9, str2);
+  CHK_FAIL_END
+
+  CHK_FAIL_START
+  strncpy (buf + 7, "X", l0 + 4);
+  CHK_FAIL_END
+
+  CHK_FAIL_START
+  sprintf (buf + 8, "%d", num1);
+  CHK_FAIL_END
+
+  CHK_FAIL_START
+  snprintf (buf + 8, l0 + 3, "%d", num2);
+  CHK_FAIL_END
+
+  memcpy (buf, str1 + 2, l0 + 9);
+  CHK_FAIL_START
+  strcat (buf, "AB");
+  CHK_FAIL_END
+
+  memcpy (buf, str1 + 3, l0 + 8);
+  CHK_FAIL_START
+  strncat (buf, "ZYXWV", l0 + 3);
+  CHK_FAIL_END
+
+  CHK_FAIL_START
+  memcpy (a.buf1 + 1, "abcdefghij", l0 + 10);
+  CHK_FAIL_END
+
+  CHK_FAIL_START
+  memmove (a.buf1 + 2, a.buf1 + 1, l0 + 9);
+  CHK_FAIL_END
+
+  CHK_FAIL_START
+  p = mempcpy (a.buf1 + 6, "abcde", l0 + 5);
+  CHK_FAIL_END
+
+  CHK_FAIL_START
+  memset (a.buf1 + 9, 'j', l0 + 2);
+  CHK_FAIL_END
+
+#if __USE_FORTIFY_LEVEL >= 2 && __GNUC_PREREQ (4, 0)
+# define O 0
+#else
+# define O 1
+#endif
+
+  CHK_FAIL_START
+  strcpy (a.buf1 + (O + 4), str1 + 5);
+  CHK_FAIL_END
+
+  CHK_FAIL_START
+  p = stpcpy (a.buf1 + (O + 8), str2);
+  CHK_FAIL_END
+
+  CHK_FAIL_START
+  strncpy (a.buf1 + (O + 6), "X", l0 + 4);
+  CHK_FAIL_END
+
+  CHK_FAIL_START
+  sprintf (a.buf1 + (O + 7), "%d", num1);
+  CHK_FAIL_END
+
+  CHK_FAIL_START
+  snprintf (a.buf1 + (O + 7), l0 + 3, "%d", num2);
+  CHK_FAIL_END
+
+  memcpy (a.buf1, str1 + (3 - O), l0 + 8 + O);
+  CHK_FAIL_START
+  strcat (a.buf1, "AB");
+  CHK_FAIL_END
+
+  memcpy (a.buf1, str1 + (4 - O), l0 + 7 + O);
+  CHK_FAIL_START
+  strncat (a.buf1, "ZYXWV", l0 + 3);
+  CHK_FAIL_END
+#endif
+
+  /* Now checks for %n protection.  */
+
+  /* Constant literals passed directly are always ok
+     (even with warnings about possible bugs from GCC).  */
+  int n1, n2;
+  if (sprintf (buf, "%s%n%s%n", str2, &n1, str2, &n2) != 2
+      || n1 != 1 || n2 != 2)
+    FAIL ();
+
+  /* In this case the format string is not known at compile time,
+     but resides in read-only memory, so is ok.  */
+  if (snprintf (buf, 4, str3, str2, &n1, str2, &n2) != 2
+      || n1 != 1 || n2 != 2)
+    FAIL ();
+
+  strcpy (buf2 + 2, "%n%s%n");
+  /* When the format string is writable and contains %n,
+     with -D_FORTIFY_SOURCE=2 it causes __chk_fail.  */
+  CHK_FAIL2_START
+  if (sprintf (buf, buf2, str2, &n1, str2, &n1) != 2)
+    FAIL ();
+  CHK_FAIL2_END
+
+  CHK_FAIL2_START
+  if (snprintf (buf, 3, buf2, str2, &n1, str2, &n1) != 2)
+    FAIL ();
+  CHK_FAIL2_END
+
+  /* But if there is no %n, even writable format string
+     should work.  */
+  buf2[6] = '\0';
+  if (sprintf (buf, buf2 + 4, str2) != 1)
+    FAIL ();
+
+  /* Constant literals passed directly are always ok
+     (even with warnings about possible bugs from GCC).  */
+  if (printf ("%s%n%s%n", str4, &n1, str5, &n2) != 14
+      || n1 != 7 || n2 != 14)
+    FAIL ();
+
+  /* In this case the format string is not known at compile time,
+     but resides in read-only memory, so is ok.  */
+  if (printf (str3, str4, &n1, str5, &n2) != 14
+      || n1 != 7 || n2 != 14)
+    FAIL ();
+
+  strcpy (buf2 + 2, "%n%s%n");
+  /* When the format string is writable and contains %n,
+     with -D_FORTIFY_SOURCE=2 it causes __chk_fail.  */
+  CHK_FAIL2_START
+  if (printf (buf2, str4, &n1, str5, &n1) != 14)
+    FAIL ();
+  CHK_FAIL2_END
+
+  /* But if there is no %n, even writable format string
+     should work.  */
+  buf2[6] = '\0';
+  if (printf (buf2 + 4, str5) != 7)
+    FAIL ();
+
+  FILE *fp = stdout;
+
+  /* Constant literals passed directly are always ok
+     (even with warnings about possible bugs from GCC).  */
+  if (fprintf (fp, "%s%n%s%n", str4, &n1, str5, &n2) != 14
+      || n1 != 7 || n2 != 14)
+    FAIL ();
+
+  /* In this case the format string is not known at compile time,
+     but resides in read-only memory, so is ok.  */
+  if (fprintf (fp, str3, str4, &n1, str5, &n2) != 14
+      || n1 != 7 || n2 != 14)
+    FAIL ();
+
+  strcpy (buf2 + 2, "%n%s%n");
+  /* When the format string is writable and contains %n,
+     with -D_FORTIFY_SOURCE=2 it causes __chk_fail.  */
+  CHK_FAIL2_START
+  if (fprintf (fp, buf2, str4, &n1, str5, &n1) != 14)
+    FAIL ();
+  CHK_FAIL2_END
+
+  /* But if there is no %n, even writable format string
+     should work.  */
+  buf2[6] = '\0';
+  if (fprintf (fp, buf2 + 4, str5) != 7)
+    FAIL ();
+
+  if (freopen (temp_filename, "r", stdin) == NULL)
+    {
+      puts ("could not open temporary file");
+      exit (1);
+    }
+
+  if (gets (buf) != buf || memcmp (buf, "abcdefgh", 9))
+    FAIL ();
+  if (gets (buf) != buf || memcmp (buf, "ABCDEFGHI", 10))
+    FAIL ();
+
+#if __USE_FORTIFY_LEVEL >= 1
+  CHK_FAIL_START
+  if (gets (buf) != buf)
+    FAIL ();
+  CHK_FAIL_END
+#endif
+
+  if (freopen (temp_filename, "r", stdin) == NULL)
+    {
+      puts ("could not open temporary file");
+      exit (1);
+    }
+
+  if (fseek (stdin, 9 + 10 + 11, SEEK_SET))
+    {
+      puts ("could not seek in test file");
+      exit (1);
+    }
+
+#if __USE_FORTIFY_LEVEL >= 1
+  CHK_FAIL_START
+  if (gets (buf) != buf)
+    FAIL ();
+  CHK_FAIL_END
+#endif
+
+  /* Check whether missing N$ formats are detected.  */
+  CHK_FAIL2_START
+  printf ("%3$d\n", 1, 2, 3, 4);
+  CHK_FAIL2_END
+
+  CHK_FAIL2_START
+  fprintf (stdout, "%3$d\n", 1, 2, 3, 4);
+  CHK_FAIL2_END
+
+  CHK_FAIL2_START
+  sprintf (buf, "%3$d\n", 1, 2, 3, 4);
+  CHK_FAIL2_END
+
+  CHK_FAIL2_START
+  snprintf (buf, sizeof (buf), "%3$d\n", 1, 2, 3, 4);
+  CHK_FAIL2_END
+
+  return ret;
+}

debug/tst-chk2.c

@@ -0,0 +1,2 @@
+#define _FORTIFY_SOURCE 1
+#include "tst-chk1.c"

debug/tst-chk3.c

@@ -0,0 +1,2 @@
+#define _FORTIFY_SOURCE 2
+#include "tst-chk1.c"

debug/vfprintf_chk.c

@@ -1,4 +1,5 @@
-/* Copyright (C) 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1995, 1996, 1997, 2001, 2004
+   Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -16,28 +17,26 @@
    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
    02111-1307 USA.  */
 
-#include <fcntl.h>
 #include <stdarg.h>
+#include <stdio.h>
+#include "../libio/libioP.h"
 
-extern int kfcntl (int fdes, int cmd, unsigned long int arg);
 
+/* Write formatted output to FP from the format string FORMAT.  */
 int
-__fcntl (int fdes, int cmd, ...)
+__vfprintf_chk (FILE *fp, int flag, const char *format, va_list ap)
 {
-  va_list va;
-  int res;
-  unsigned long int arg;
+  int done;
 
-  va_start (va, cmd);
-  arg = va_arg (va, unsigned long int);
+  _IO_acquire_lock (fp);
+  if (flag > 0)
+    fp->_flags2 |= _IO_FLAGS2_FORTIFY;
 
-  res = kfcntl (fdes, cmd, arg);
+  done = vfprintf (fp, format, ap);
 
-  va_end (va);
+  if (flag > 0)
+    fp->_flags2 &= ~_IO_FLAGS2_FORTIFY;
+  _IO_release_lock (fp);
 
-  return res;
+  return done;
 }
-libc_hidden_def (__fcntl)
-strong_alias (__fcntl, fcntl)
-strong_alias (__fcntl, __libc_fcntl)
-libc_hidden_def (__libc_fcntl)

debug/vprintf_chk.c

@@ -1,4 +1,5 @@
-/* Copyright (C) 1999, 2000 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1995, 1996, 1997, 2001, 2004
+   Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -17,27 +18,25 @@
    02111-1307 USA.  */
 
 #include <stdarg.h>
-#include <sys/ioctl.h>
+#include <stdio.h>
+#include "../libio/libioP.h"
 
-extern int kioctl (int fdes, int cmd, unsigned long int arg,
-		   unsigned long int ext);
 
+/* Write formatted output to stdout from the format string FORMAT.  */
 int
-__ioctl (int fdes, unsigned long int cmd, ...)
+__vprintf_chk (int flag, const char *format, va_list ap)
 {
-  va_list va;
-  int res;
-  unsigned long int arg;
-  unsigned long int ext;
+  int done;
 
-  va_start (va, cmd);
-  arg = va_arg (va, unsigned long int);
-  ext = va_arg (va, unsigned long int);
+  _IO_acquire_lock (stdout);
+  if (flag > 0)
+    stdout->_flags2 |= _IO_FLAGS2_FORTIFY;
 
-  res = kioctl (fdes, cmd, arg, ext);
+  done = vfprintf (stdout, format, ap);
 
-  va_end (va);
+  if (flag > 0)
+    stdout->_flags2 &= ~_IO_FLAGS2_FORTIFY;
+  _IO_release_lock (stdout);
 
-  return res;
+  return done;
 }
-strong_alias (__ioctl, ioctl)

debug/vsnprintf_chk.c

@@ -0,0 +1,70 @@
+/* Copyright (C) 1991, 1995, 1997, 1998, 2004 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <stdarg.h>
+#include <stdio.h>
+#include "../libio/libioP.h"
+#include "../libio/strfile.h"
+
+extern const struct _IO_jump_t _IO_strn_jumps attribute_hidden;
+
+/* Write formatted output into S, according to the format
+   string FORMAT, writing no more than MAXLEN characters.  */
+/* VARARGS5 */
+int
+__vsnprintf_chk (char *s, size_t maxlen, int flags, size_t slen,
+		 const char *format, va_list args)
+{
+  /* XXX Maybe for less strict version do not fail immediately.
+     Though, maxlen is supposed to be the size of buffer pointed
+     to by s, so a conforming program can't pass such maxlen
+     to *snprintf.  */
+  if (__builtin_expect (slen < maxlen, 0))
+    __chk_fail ();
+
+  _IO_strnfile sf;
+  int ret;
+#ifdef _IO_MTSAFE_IO
+  sf.f._sbf._f._lock = NULL;
+#endif
+
+  /* We need to handle the special case where MAXLEN is 0.  Use the
+     overflow buffer right from the start.  */
+  if (maxlen == 0)
+    {
+      s = sf.overflow_buf;
+      maxlen = sizeof (sf.overflow_buf);
+    }
+
+  _IO_no_init (&sf.f._sbf._f, _IO_USER_LOCK, -1, NULL, NULL);
+  _IO_JUMPS ((struct _IO_FILE_plus *) &sf.f._sbf) = &_IO_strn_jumps;
+  s[0] = '\0';
+
+  /* For flags > 0 (i.e. __USE_FORTIFY_LEVEL > 1) request that %n
+     can only come from read-only format strings.  */
+  if (flags > 0)
+    sf.f._sbf._f._flags2 |= _IO_FLAGS2_FORTIFY;
+
+  _IO_str_init_static_internal (&sf.f, s, maxlen - 1, s);
+  ret = INTUSE(_IO_vfprintf) ((_IO_FILE *) &sf.f._sbf, format, args);
+
+  if (sf.f._sbf._f._IO_buf_base != sf.overflow_buf)
+    *sf.f._sbf._f._IO_write_ptr = '\0';
+  return ret;
+}
+libc_hidden_def (__vsnprintf_chk)

debug/vsprintf_chk.c

@@ -0,0 +1,91 @@
+/* Copyright (C) 1994, 1997, 1999-2003, 2004 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <stdarg.h>
+#include <stdio.h>
+#include "../libio/libioP.h"
+#include "../libio/strfile.h"
+
+
+static int _IO_str_chk_overflow (_IO_FILE *fp, int c) __THROW;
+
+static int
+_IO_str_chk_overflow (fp, c)
+     _IO_FILE *fp;
+     int c;
+{
+  /* When we come to here this means the user supplied buffer is
+     filled.  */
+  __chk_fail ();
+}
+
+
+static const struct _IO_jump_t _IO_str_chk_jumps =
+{
+  JUMP_INIT_DUMMY,
+  JUMP_INIT(finish, _IO_str_finish),
+  JUMP_INIT(overflow, _IO_str_chk_overflow),
+  JUMP_INIT(underflow, INTUSE(_IO_str_underflow)),
+  JUMP_INIT(uflow, INTUSE(_IO_default_uflow)),
+  JUMP_INIT(pbackfail, INTUSE(_IO_str_pbackfail)),
+  JUMP_INIT(xsputn, INTUSE(_IO_default_xsputn)),
+  JUMP_INIT(xsgetn, INTUSE(_IO_default_xsgetn)),
+  JUMP_INIT(seekoff, INTUSE(_IO_str_seekoff)),
+  JUMP_INIT(seekpos, _IO_default_seekpos),
+  JUMP_INIT(setbuf, _IO_default_setbuf),
+  JUMP_INIT(sync, _IO_default_sync),
+  JUMP_INIT(doallocate, INTUSE(_IO_default_doallocate)),
+  JUMP_INIT(read, _IO_default_read),
+  JUMP_INIT(write, _IO_default_write),
+  JUMP_INIT(seek, _IO_default_seek),
+  JUMP_INIT(close, _IO_default_close),
+  JUMP_INIT(stat, _IO_default_stat),
+  JUMP_INIT(showmanyc, _IO_default_showmanyc),
+  JUMP_INIT(imbue, _IO_default_imbue)
+};
+
+
+int
+__vsprintf_chk (char *s, int flags, size_t slen, const char *format,
+		va_list args)
+{
+  _IO_strfile f;
+  int ret;
+#ifdef _IO_MTSAFE_IO
+  f._sbf._f._lock = NULL;
+#endif
+
+  if (slen == 0)
+    __chk_fail ();
+
+  _IO_no_init (&f._sbf._f, _IO_USER_LOCK, -1, NULL, NULL);
+  _IO_JUMPS ((struct _IO_FILE_plus *) &f._sbf) = &_IO_str_chk_jumps;
+  s[0] = '\0';
+  _IO_str_init_static_internal (&f, s, slen - 1, s);
+
+  /* For flags > 0 (i.e. __USE_FORTIFY_LEVEL > 1) request that %n
+     can only come from read-only format strings.  */
+  if (flags > 0)
+    f._sbf._f._flags2 |= _IO_FLAGS2_FORTIFY;
+
+  ret = INTUSE(_IO_vfprintf) ((_IO_FILE *) &f._sbf, format, args);
+
+  *f._sbf._f._IO_write_ptr = '\0';
+  return ret;
+}
+libc_hidden_def (__vsprintf_chk)

dirent/dirent.h

@@ -132,14 +132,14 @@ typedef struct __dirstream DIR;
 
    This function is a possible cancellation point and therefore not
    marked with __THROW.  */
-extern DIR *opendir (__const char *__name);
+extern DIR *opendir (__const char *__name) __nonnull ((1));
 
 /* Close the directory stream DIRP.
    Return 0 if successful, -1 if not.
 
    This function is a possible cancellation point and therefore not
    marked with __THROW.  */
-extern int closedir (DIR *__dirp);
+extern int closedir (DIR *__dirp) __nonnull ((1));
 
 /* Read a directory entry from DIRP.  Return a pointer to a `struct
    dirent' describing the entry, or NULL for EOF or error.  The
@@ -152,17 +152,18 @@ extern int closedir (DIR *__dirp);
    This function is a possible cancellation point and therefore not
    marked with __THROW.  */
 #ifndef __USE_FILE_OFFSET64
-extern struct dirent *readdir (DIR *__dirp);
+extern struct dirent *readdir (DIR *__dirp) __nonnull ((1));
 #else
 # ifdef __REDIRECT
-extern struct dirent *__REDIRECT (readdir, (DIR *__dirp), readdir64);
+extern struct dirent *__REDIRECT (readdir, (DIR *__dirp), readdir64)
+     __nonnull ((1));
 # else
 #  define readdir readdir64
 # endif
 #endif
 
 #ifdef __USE_LARGEFILE64
-extern struct dirent64 *readdir64 (DIR *__dirp);
+extern struct dirent64 *readdir64 (DIR *__dirp) __nonnull ((1));
 #endif
 
 #if defined __USE_POSIX || defined __USE_MISC
@@ -174,14 +175,15 @@ extern struct dirent64 *readdir64 (DIR *__dirp);
 # ifndef __USE_FILE_OFFSET64
 extern int readdir_r (DIR *__restrict __dirp,
 		      struct dirent *__restrict __entry,
-		      struct dirent **__restrict __result);
+		      struct dirent **__restrict __result)
+     __nonnull ((1, 2, 3));
 # else
 #  ifdef __REDIRECT
 extern int __REDIRECT (readdir_r,
 		       (DIR *__restrict __dirp,
 			struct dirent *__restrict __entry,
 			struct dirent **__restrict __result),
-		       readdir64_r);
+		       readdir64_r) __nonnull ((1, 2, 3));
 #  else
 #   define readdir_r readdir64_r
 #  endif
@@ -190,27 +192,28 @@ extern int __REDIRECT (readdir_r,
 # ifdef __USE_LARGEFILE64
 extern int readdir64_r (DIR *__restrict __dirp,
 			struct dirent64 *__restrict __entry,
-			struct dirent64 **__restrict __result);
+			struct dirent64 **__restrict __result)
+     __nonnull ((1, 2, 3));
 # endif
 #endif	/* POSIX or misc */
 
 /* Rewind DIRP to the beginning of the directory.  */
-extern void rewinddir (DIR *__dirp) __THROW;
+extern void rewinddir (DIR *__dirp) __THROW __nonnull ((1));
 
 #if defined __USE_BSD || defined __USE_MISC || defined __USE_XOPEN
 # include <bits/types.h>
 
 /* Seek to position POS on DIRP.  */
-extern void seekdir (DIR *__dirp, long int __pos) __THROW;
+extern void seekdir (DIR *__dirp, long int __pos) __THROW __nonnull ((1));
 
 /* Return the current position of DIRP.  */
-extern long int telldir (DIR *__dirp) __THROW;
+extern long int telldir (DIR *__dirp) __THROW __nonnull ((1));
 #endif
 
 #if defined __USE_BSD || defined __USE_MISC
 
 /* Return the file descriptor used by DIRP.  */
-extern int dirfd (DIR *__dirp) __THROW;
+extern int dirfd (DIR *__dirp) __THROW __nonnull ((1));
 
 # if defined __OPTIMIZE__ && defined _DIR_dirfd
 #  define dirfd(dirp)	_DIR_dirfd (dirp)
@@ -239,7 +242,8 @@ extern int dirfd (DIR *__dirp) __THROW;
 extern int scandir (__const char *__restrict __dir,
 		    struct dirent ***__restrict __namelist,
 		    int (*__selector) (__const struct dirent *),
-		    int (*__cmp) (__const void *, __const void *));
+		    int (*__cmp) (__const void *, __const void *))
+     __nonnull ((1, 2));
 # else
 #  ifdef __REDIRECT
 extern int __REDIRECT (scandir,
@@ -247,7 +251,7 @@ extern int __REDIRECT (scandir,
 			struct dirent ***__restrict __namelist,
 			int (*__selector) (__const struct dirent *),
 			int (*__cmp) (__const void *, __const void *)),
-		       scandir64);
+		       scandir64) __nonnull ((1, 2));
 #  else
 #   define scandir scandir64
 #  endif
@@ -259,18 +263,19 @@ extern int __REDIRECT (scandir,
 extern int scandir64 (__const char *__restrict __dir,
 		      struct dirent64 ***__restrict __namelist,
 		      int (*__selector) (__const struct dirent64 *),
-		      int (*__cmp) (__const void *, __const void *));
+		      int (*__cmp) (__const void *, __const void *))
+     __nonnull ((1, 2));
 # endif
 
 /* Function to compare two `struct dirent's alphabetically.  */
 # ifndef __USE_FILE_OFFSET64
 extern int alphasort (__const void *__e1, __const void *__e2)
-     __THROW __attribute_pure__;
+     __THROW __attribute_pure__ __nonnull ((1, 2));
 # else
 #  ifdef __REDIRECT
 extern int __REDIRECT_NTH (alphasort,
 			   (__const void *__e1, __const void *__e2),
-			   alphasort64) __attribute_pure__;
+			   alphasort64) __attribute_pure__ __nonnull ((1, 2));
 #  else
 #   define alphasort alphasort64
 #  endif
@@ -278,19 +283,20 @@ extern int __REDIRECT_NTH (alphasort,
 
 # if defined __USE_GNU && defined __USE_LARGEFILE64
 extern int alphasort64 (__const void *__e1, __const void *__e2)
-     __THROW __attribute_pure__;
+     __THROW __attribute_pure__ __nonnull ((1, 2));
 # endif
 
 # ifdef __USE_GNU
 /* Function to compare two `struct dirent's by name & version.  */
 #  ifndef __USE_FILE_OFFSET64
 extern int versionsort (__const void *__e1, __const void *__e2)
-     __THROW __attribute_pure__;
+     __THROW __attribute_pure__ __nonnull ((1, 2));
 #  else
 #   ifdef __REDIRECT
 extern int __REDIRECT_NTH (versionsort,
 			   (__const void *__e1, __const void *__e2),
-			   versionsort64) __attribute_pure__;
+			   versionsort64)
+     __attribute_pure__ __nonnull ((1, 2));
 #   else
 #    define versionsort versionsort64
 #   endif
@@ -298,7 +304,7 @@ extern int __REDIRECT_NTH (versionsort,
 
 #  ifdef __USE_LARGEFILE64
 extern int versionsort64 (__const void *__e1, __const void *__e2)
-     __THROW __attribute_pure__;
+     __THROW __attribute_pure__ __nonnull ((1, 2));
 #  endif
 # endif
 
@@ -309,14 +315,15 @@ extern int versionsort64 (__const void *__e1, __const void *__e2)
 # ifndef __USE_FILE_OFFSET64
 extern __ssize_t getdirentries (int __fd, char *__restrict __buf,
 				size_t __nbytes,
-				__off_t *__restrict __basep) __THROW;
+				__off_t *__restrict __basep)
+     __THROW __nonnull ((2, 4));
 # else
 #  ifdef __REDIRECT
 extern __ssize_t __REDIRECT_NTH (getdirentries,
 				 (int __fd, char *__restrict __buf,
 				  size_t __nbytes,
 				  __off64_t *__restrict __basep),
-				 getdirentries64);
+				 getdirentries64) __nonnull ((2, 4));
 #  else
 #   define getdirentries getdirentries64
 #  endif
@@ -325,7 +332,8 @@ extern __ssize_t __REDIRECT_NTH (getdirentries,
 # ifdef __USE_LARGEFILE64
 extern __ssize_t getdirentries64 (int __fd, char *__restrict __buf,
 				  size_t __nbytes,
-				  __off64_t *__restrict __basep) __THROW;
+				  __off64_t *__restrict __basep)
+     __THROW __nonnull ((2, 4));
 # endif
 
 #endif /* Use BSD or misc.  */

dlfcn/Makefile

@@ -19,10 +19,13 @@
 subdir		:= dlfcn
 headers		:= bits/dlfcn.h dlfcn.h
 extra-libs	:= libdl
-libdl-routines	:= dlopen dlclose dlsym dlvsym dlerror dladdr dladdr1 dlinfo
+libdl-routines	:= dlopen dlclose dlsym dlvsym dlerror dladdr dladdr1 dlinfo \
+		   dlmopen
+routines	:= $(patsubst %,s%,$(libdl-routines))
+elide-routines.os := $(routines)
 distribute	:= dlopenold.c glreflib1.c glreflib2.c failtestmod.c \
 		   defaultmod1.c defaultmod2.c errmsg1mod.c modatexit.c \
-		   modcxaatexit.c modstatic.c \
+		   modcxaatexit.c modstatic.c modstatic2.c \
 		   bug-dlsym1-lib1.c bug-dlsym1-lib2.c
 
 extra-libs-others := libdl
@@ -50,10 +53,11 @@ glreflib2.so-no-z-defs = yes
 errmsg1mod.so-no-z-defs = yes
 
 ifeq (yesyesyes,$(build-static)$(build-shared)$(elf))
-tests += tststatic
-tests-static += tststatic
-modules-names += modstatic
+tests += tststatic tststatic2
+tests-static += tststatic tststatic2
+modules-names += modstatic modstatic2
 tststatic-ENV = LD_LIBRARY_PATH=$(objpfx):$(common-objpfx):$(common-objpfx)elf
+tststatic2-ENV = LD_LIBRARY_PATH=$(objpfx):$(common-objpfx):$(common-objpfx)elf
 endif
 
 extra-objs += $(modules-names:=.os)
@@ -105,7 +109,12 @@ $(objpfx)modatexit.so: $(common-objpfx)libc.so $(common-objpfx)libc_nonshared.a
 $(objpfx)tststatic: $(objpfx)libdl.a
 $(objpfx)tststatic.out: $(objpfx)tststatic $(objpfx)modstatic.so
 
-$(objpfx)modstatic.so: $(common-objpfx)libc.so $(common-objpfx)libc_nonshared.a
+$(objpfx)tststatic2: $(objpfx)libdl.a
+$(objpfx)tststatic2.out: $(objpfx)tststatic2 $(objpfx)modstatic.so \
+			 $(objpfx)modstatic2.so
+
+$(objpfx)modstatic2.so: $(libdl) $(common-objpfx)libc.so \
+			$(common-objpfx)libc_nonshared.a
 
 $(objpfx)bug-dlopen1: $(libdl)
 

dlfcn/Versions

@@ -8,4 +8,10 @@ libdl {
   GLIBC_2.3.3 {
     dladdr1; dlinfo;
   }
+  GLIBC_2.3.4 {
+    dlmopen;
+  }
+  GLIBC_PRIVATE {
+    _dlfcn_hook;
+  }
 }

dlfcn/bug-dlsym1.c

@@ -10,8 +10,6 @@ int main(void)
     void *handle;
     char *c;
 
-    setenv ("LD_LIBRARY_PATH", "/home/roland/build/tls-libc/dlfcn", 1);
-
     /* open lib1.so, which has the unresolved test symbol and a DT_NEEDED
        on lib2.so, which provides the symbol */
     if ((handle = dlopen("bug-dlsym1-lib1.so", RTLD_NOW)) == NULL) {

dlfcn/dladdr.c

@@ -1,5 +1,6 @@
 /* Locate the shared object symbol nearest a given address.
-   Copyright (C) 1996, 1997, 1998, 1999, 2003 Free Software Foundation, Inc.
+   Copyright (C) 1996, 1997, 1998, 1999, 2003, 2004
+   Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -19,8 +20,26 @@
 
 #include <dlfcn.h>
 
+#if !defined SHARED && defined IS_IN_libdl
+
 int
 dladdr (const void *address, Dl_info *info)
 {
+  return __dladdr (address, info);
+}
+
+#else
+
+int
+__dladdr (const void *address, Dl_info *info)
+{
+# ifdef SHARED
+  if (__builtin_expect (_dlfcn_hook != NULL, 0))
+    return _dlfcn_hook->dladdr (address, info);
+# endif
   return _dl_addr (address, info, NULL, NULL);
 }
+# ifdef SHARED
+strong_alias (__dladdr, dladdr)
+# endif
+#endif

dlfcn/dladdr1.c

@@ -1,5 +1,5 @@
 /* Locate the shared object symbol nearest a given address.
-   Copyright (C) 2003 Free Software Foundation, Inc.
+   Copyright (C) 2003, 2004 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -19,9 +19,24 @@
 
 #include <dlfcn.h>
 
+#if !defined SHARED && defined IS_IN_libdl
+
 int
 dladdr1 (const void *address, Dl_info *info, void **extra, int flags)
 {
+  return __dladdr1 (address, info, extra, flags);
+}
+
+#else
+
+int
+__dladdr1 (const void *address, Dl_info *info, void **extra, int flags)
+{
+# ifdef SHARED
+  if (__builtin_expect (_dlfcn_hook != NULL, 0))
+    return _dlfcn_hook->dladdr1 (address, info, extra, flags);
+# endif
+
   switch (flags)
     {
     default:			/* Make this an error?  */
@@ -33,3 +48,7 @@ dladdr1 (const void *address, Dl_info *info, void **extra, int flags)
       return _dl_addr (address, info, (struct link_map **) extra, NULL);
     }
 }
+# ifdef SHARED
+strong_alias (__dladdr1, dladdr1)
+# endif
+#endif

dlfcn/dlclose.c

@@ -1,5 +1,6 @@
 /* Close a handle opened by `dlopen'.
-   Copyright (C) 1995, 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
+   Copyright (C) 1995, 1996, 1997, 1998, 1999, 2004
+   Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -19,6 +20,16 @@
 
 #include <dlfcn.h>
 
+#if !defined SHARED && defined IS_IN_libdl
+
+int
+dlclose (void *handle)
+{
+  return __dlclose (handle);
+}
+
+#else
+
 static void
 dlclose_doit (void *handle)
 {
@@ -26,7 +37,16 @@ dlclose_doit (void *handle)
 }
 
 int
-dlclose (void *handle)
+__dlclose (void *handle)
 {
+# ifdef SHARED
+  if (__builtin_expect (_dlfcn_hook != NULL, 0))
+    return _dlfcn_hook->dlclose (handle);
+# endif
+
   return _dlerror_run (dlclose_doit, handle) ? -1 : 0;
 }
+# ifdef SHARED
+strong_alias (__dlclose, dlclose)
+# endif
+#endif

dlfcn/dlerror.c

@@ -25,6 +25,16 @@
 #include <bits/libc-lock.h>
 #include <ldsodefs.h>
 
+#if !defined SHARED && defined IS_IN_libdl
+
+char *
+dlerror (void)
+{
+  return __dlerror ();
+}
+
+#else
+
 /* Type for storing results of dynamic loading actions.  */
 struct dl_action_result
   {
@@ -46,11 +56,16 @@ static void free_key_mem (void *mem);
 
 
 char *
-dlerror (void)
+__dlerror (void)
 {
   char *buf = NULL;
   struct dl_action_result *result;
 
+# ifdef SHARED
+  if (__builtin_expect (_dlfcn_hook != NULL, 0))
+    return _dlfcn_hook->dlerror ();
+# endif
+
   /* If we have not yet initialized the buffer do it now.  */
   __libc_once (once, init);
 
@@ -99,6 +114,9 @@ dlerror (void)
 
   return buf;
 }
+# ifdef SHARED
+strong_alias (__dlerror, dlerror)
+# endif
 
 int
 internal_function
@@ -185,3 +203,35 @@ free_key_mem (void *mem)
   free (mem);
   __libc_setspecific (key, NULL);
 }
+
+# ifdef SHARED
+
+struct dlfcn_hook *_dlfcn_hook __attribute__((nocommon));
+libdl_hidden_data_def (_dlfcn_hook)
+
+# else
+
+static struct dlfcn_hook _dlfcn_hooks =
+  {
+    .dlopen = __dlopen,
+    .dlclose = __dlclose,
+    .dlsym = __dlsym,
+    .dlvsym = __dlvsym,
+    .dlerror = __dlerror,
+    .dladdr = __dladdr,
+    .dladdr1 = __dladdr1,
+    .dlinfo = __dlinfo,
+    .dlmopen = __dlmopen
+  };
+
+void
+__libc_register_dlfcn_hook (struct link_map *map)
+{
+  struct dlfcn_hook **hook;
+
+  hook = (struct dlfcn_hook **) __libc_dlsym_private (map, "_dlfcn_hook");
+  if (hook != NULL)
+    *hook = &_dlfcn_hooks;
+}
+# endif
+#endif

dlfcn/dlfcn.h

@@ -1,5 +1,5 @@
 /* User functions for run-time dynamic loading.
-   Copyright (C) 1995-1999,2000,2001,2003 Free Software Foundation, Inc.
+   Copyright (C) 1995-1999,2000,2001,2003,2004 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -39,6 +39,14 @@
    the run-time address of the symbol called NAME in the global scope
    is returned.  */
 # define RTLD_DEFAULT	((void *) 0)
+
+
+/* Type for namespace indeces.  */
+typedef long int Lmid_t;
+
+/* Special namespace ID values.  */
+# define LM_ID_BASE	0	/* Initial namespace.  */
+# define LM_ID_NEWLM	-1	/* For dlmopen: request new namespace.  */
 #endif
 
 
@@ -50,19 +58,23 @@ extern void *dlopen (__const char *__file, int __mode) __THROW;
 
 /* Unmap and close a shared object opened by `dlopen'.
    The handle cannot be used again after calling `dlclose'.  */
-extern int dlclose (void *__handle) __THROW;
+extern int dlclose (void *__handle) __THROW __nonnull ((1));
 
 /* Find the run-time address in the shared object HANDLE refers to
    of the symbol called NAME.  */
 extern void *dlsym (void *__restrict __handle,
-		    __const char *__restrict __name) __THROW;
+		    __const char *__restrict __name) __THROW __nonnull ((2));
 
 #ifdef __USE_GNU
+/* Like `dlopen', but request object to be allocated in a new namespace.  */
+extern void *dlmopen (Lmid_t __nsid, __const char *__file, int __mode) __THROW;
+
 /* Find the run-time address in the shared object HANDLE refers to
    of the symbol called NAME with VERSION.  */
 extern void *dlvsym (void *__restrict __handle,
 		     __const char *__restrict __name,
-		     __const char *__restrict __version) __THROW;
+		     __const char *__restrict __version)
+     __THROW __nonnull ((2, 3));
 #endif
 
 /* When any of the above functions fails, call this function
@@ -84,11 +96,12 @@ typedef struct
 
 /* Fill in *INFO with the following information about ADDRESS.
    Returns 0 iff no shared object's segments contain that address.  */
-extern int dladdr (__const void *__address, Dl_info *__info) __THROW;
+extern int dladdr (__const void *__address, Dl_info *__info)
+     __THROW __nonnull ((2));
 
 /* Same as `dladdr', but additionally sets *EXTRA_INFO according to FLAGS.  */
 extern int dladdr1 (__const void *__address, Dl_info *__info,
-		    void **__extra_info, int __flags) __THROW;
+		    void **__extra_info, int __flags) __THROW __nonnull ((2));
 
 /* These are the possible values for the FLAGS argument to `dladdr1'.
    This indicates what extra information is stored at *EXTRA_INFO.
@@ -109,11 +122,15 @@ enum
    On success, returns zero.  On failure, returns -1 and records an error
    message to be fetched with `dlerror'.  */
 extern int dlinfo (void *__restrict __handle,
-		   int __request, void *__restrict __arg);
+		   int __request, void *__restrict __arg)
+     __THROW __nonnull ((1, 3));
 
 /* These are the possible values for the REQUEST argument to `dlinfo'.  */
 enum
   {
+    /* Treat ARG as `lmid_t *'; store namespace ID for HANDLE there.  */
+    RTLD_DI_LMID = 1,
+
     /* Treat ARG as `struct link_map **';
        store the `struct link_map *' for HANDLE there.  */
     RTLD_DI_LINKMAP = 2,
@@ -130,7 +147,6 @@ enum
        expand $ORIGIN in this shared object's dependency file names.  */
     RTLD_DI_ORIGIN = 6,
 
-    RTLD_DI_LMID = 1,		/* Unsupported, defined by Solaris.  */
     RTLD_DI_CONFIGADDR = 3	/* Unsupported, defined by Solaris.  */
   };
 

dlfcn/dlinfo.c

@@ -22,6 +22,16 @@
 #include <ldsodefs.h>
 #include <libintl.h>
 
+#if !defined SHARED && defined IS_IN_libdl
+
+int
+dlinfo (void *handle, int request, void *arg)
+{
+  return __dlinfo (handle, request, arg, RETURN_ADDRESS (0));
+}
+
+#else
+
 struct dlinfo_args
 {
   ElfW(Addr) caller;
@@ -36,31 +46,36 @@ dlinfo_doit (void *argsblock)
   struct dlinfo_args *const args = argsblock;
   struct link_map *l = args->handle;
 
-#if 0
+# if 0
   if (args->handle == RTLD_SELF)
     {
+      Lmid_t nsid;
 
       /* Find the highest-addressed object that CALLER is not below.  */
-      for (l = GL(dl_loaded); l != NULL; l = l->l_next)
-	if (caller >= l->l_map_start && caller < l->l_map_end)
-	  /* There must be exactly one DSO for the range of the virtual
-	     memory.  Otherwise something is really broken.  */
-	  break;
+      for (nsid = 0; nsid < DL_NNS; ++nsid)
+	for (l = GL(dl_ns)[nsid]._ns_loaded; l != NULL; l = l->l_next)
+	  if (caller >= l->l_map_start && caller < l->l_map_end)
+	    /* There must be exactly one DSO for the range of the virtual
+	       memory.  Otherwise something is really broken.  */
+	    break;
 
       if (l == NULL)
 	GLRO(dl_signal_error) (0, NULL, NULL, N_("\
 RTLD_SELF used in code not dynamically loaded"));
     }
-#endif
+# endif
 
   switch (args->request)
     {
-    case RTLD_DI_LMID:
     case RTLD_DI_CONFIGADDR:
     default:
       GLRO(dl_signal_error) (0, NULL, NULL, N_("unsupported dlinfo request"));
       break;
 
+    case RTLD_DI_LMID:
+      *(Lmid_t *) args->arg = l->l_ns;
+      break;
+
     case RTLD_DI_LINKMAP:
       *(struct link_map **) args->arg = l;
       break;
@@ -79,9 +94,19 @@ RTLD_SELF used in code not dynamically loaded"));
 }
 
 int
-dlinfo (void *handle, int request, void *arg)
+__dlinfo (void *handle, int request, void *arg DL_CALLER_DECL)
 {
-  struct dlinfo_args args = { (ElfW(Addr)) RETURN_ADDRESS (0),
+# ifdef SHARED
+  if (__builtin_expect (_dlfcn_hook != NULL, 0))
+    return _dlfcn_hook->dlinfo (handle, request, arg,
+				DL_CALLER);
+# endif
+
+  struct dlinfo_args args = { (ElfW(Addr)) DL_CALLER,
 			      handle, request, arg };
   return _dlerror_run (&dlinfo_doit, &args) ? -1 : 0;
 }
+# ifdef SHARED
+strong_alias (__dlinfo, dlinfo)
+# endif
+#endif

dlfcn/dlmopen.c

@@ -0,0 +1,98 @@
+/* Load a shared object at run time.
+   Copyright (C) 1995,96,97,98,99,2000,2003,2004 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <dlfcn.h>
+#include <errno.h>
+#include <libintl.h>
+#include <stddef.h>
+#include <ldsodefs.h>
+
+#if !defined SHARED && defined IS_IN_libdl
+
+void *
+dlmopen (Lmid_t nsid, const char *file, int mode)
+{
+  return __dlmopen (nsid, file, mode, RETURN_ADDRESS (0));
+}
+static_link_warning (dlmopen)
+
+#else
+
+struct dlmopen_args
+{
+  /* Namespace ID.  */
+  Lmid_t nsid;
+  /* The arguments for dlopen_doit.  */
+  const char *file;
+  int mode;
+  /* The return value of dlopen_doit.  */
+  void *new;
+  /* Address of the caller.  */
+  const void *caller;
+};
+
+static void
+dlmopen_doit (void *a)
+{
+  struct dlmopen_args *args = (struct dlmopen_args *) a;
+
+  /* Non-shared code has no support for multiple namespaces.  */
+  if (args->nsid != LM_ID_BASE)
+# ifdef SHARED
+    /* If trying to open the link map for the main executable the namespace
+       must be the main one.  */
+    if (args->file == NULL)
+# endif
+      GLRO(dl_signal_error) (EINVAL, NULL, NULL, N_("invalid namespace"));
+
+  args->new = _dl_open (args->file ?: "", args->mode | __RTLD_DLOPEN,
+			args->caller, args->nsid);
+}
+
+
+void *
+__dlmopen (Lmid_t nsid, const char *file, int mode DL_CALLER_DECL)
+{
+# ifdef SHARED
+  if (__builtin_expect (_dlfcn_hook != NULL, 0))
+    return _dlfcn_hook->dlmopen (nsid, file, mode, RETURN_ADDRESS (0));
+# endif
+
+  struct dlmopen_args args;
+  args.nsid = nsid;
+  args.file = file;
+  args.mode = mode;
+  args.caller = DL_CALLER;
+
+# ifdef SHARED
+  return _dlerror_run (dlmopen_doit, &args) ? NULL : args.new;
+# else
+  if (_dlerror_run (dlmopen_doit, &args))
+    return NULL;
+
+  __libc_register_dl_open_hook ((struct link_map *) args.new);
+  __libc_register_dlfcn_hook ((struct link_map *) args.new);
+
+  return args.new;
+# endif
+}
+# ifdef SHARED
+strong_alias (__dlmopen, dlmopen)
+# endif
+#endif

dlfcn/dlopen.c

@@ -1,5 +1,5 @@
 /* Load a shared object at run time.
-   Copyright (C) 1995,96,97,98,99,2000,2003 Free Software Foundation, Inc.
+   Copyright (C) 1995,96,97,98,99,2000,2003,2004 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -20,6 +20,17 @@
 #include <dlfcn.h>
 #include <stddef.h>
 
+#if !defined SHARED && defined IS_IN_libdl
+
+void *
+dlopen (const char *file, int mode)
+{
+  return __dlopen (file, mode, RETURN_ADDRESS (0));
+}
+static_link_warning (dlopen)
+
+#else
+
 struct dlopen_args
 {
   /* The arguments for dlopen_doit.  */
@@ -31,27 +42,53 @@ struct dlopen_args
   const void *caller;
 };
 
+
+/* Non-shared code has no support for multiple namespaces.  */
+# ifdef SHARED
+#  define NS __LM_ID_CALLER
+# else
+#  define NS LM_ID_BASE
+# endif
+
+
 static void
 dlopen_doit (void *a)
 {
   struct dlopen_args *args = (struct dlopen_args *) a;
 
   args->new = _dl_open (args->file ?: "", args->mode | __RTLD_DLOPEN,
-			args->caller);
+			args->caller, args->file == NULL ? LM_ID_BASE : NS);
 }
 
 
-extern void *__dlopen_check (const char *file, int mode);
 void *
-__dlopen_check (const char *file, int mode)
+__dlopen (const char *file, int mode DL_CALLER_DECL)
 {
+# ifdef SHARED
+  if (__builtin_expect (_dlfcn_hook != NULL, 0))
+    return _dlfcn_hook->dlopen (file, mode, DL_CALLER);
+# endif
+
   struct dlopen_args args;
   args.file = file;
   args.mode = mode;
-  args.caller = RETURN_ADDRESS (0);
+  args.caller = DL_CALLER;
 
+# ifdef SHARED
   return _dlerror_run (dlopen_doit, &args) ? NULL : args.new;
+# else
+  if (_dlerror_run (dlopen_doit, &args))
+    return NULL;
+
+  __libc_register_dl_open_hook ((struct link_map *) args.new);
+  __libc_register_dlfcn_hook ((struct link_map *) args.new);
+
+  return args.new;
+# endif
 }
-#include <shlib-compat.h>
+# ifdef SHARED
+#  include <shlib-compat.h>
+strong_alias (__dlopen, __dlopen_check)
 versioned_symbol (libdl, __dlopen_check, dlopen, GLIBC_2_1);
-static_link_warning (dlopen)
+# endif
+#endif

dlfcn/dlopenold.c

@@ -1,5 +1,5 @@
 /* Load a shared object at run time.
-   Copyright (C) 1995-1999, 2000 Free Software Foundation, Inc.
+   Copyright (C) 1995-1999, 2000, 2004 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -37,13 +37,21 @@ struct dlopen_args
 };
 
 
+/* Non-shared code has no support for multiple namespaces.  */
+#ifdef SHARED
+# define NS __LM_ID_CALLER
+#else
+# define NS LM_ID_BASE
+#endif
+
+
 static void
 dlopen_doit (void *a)
 {
   struct dlopen_args *args = (struct dlopen_args *) a;
 
   args->new = _dl_open (args->file ?: "", args->mode | __RTLD_DLOPEN,
-			args->caller);
+			args->caller, args->file == NULL ? LM_ID_BASE : NS);
 }
 
 extern void *__dlopen_nocheck (const char *file, int mode);
@@ -59,6 +67,9 @@ __dlopen_nocheck (const char *file, int mode)
     mode |= RTLD_LAZY;
   args.mode = mode;
 
+  if (__builtin_expect (_dlfcn_hook != NULL, 0))
+    return _dlfcn_hook->dlopen (file, mode, RETURN_ADDRESS (0));
+
   return _dlerror_run (dlopen_doit, &args) ? NULL : args.new;
 }
 compat_symbol (libdl, __dlopen_nocheck, dlopen, GLIBC_2_0);

dlfcn/dlsym.c

@@ -22,6 +22,16 @@
 
 #include <ldsodefs.h>
 
+#if !defined SHARED && defined IS_IN_libdl
+
+void *
+dlsym (void *handle, const char *name)
+{
+  return __dlsym (handle, name, RETURN_ADDRESS (0));
+}
+
+#else
+
 struct dlsym_args
 {
   /* The arguments to dlsym_doit.  */
@@ -43,10 +53,15 @@ dlsym_doit (void *a)
 
 
 void *
-dlsym (void *handle, const char *name)
+__dlsym (void *handle, const char *name DL_CALLER_DECL)
 {
+# ifdef SHARED
+  if (__builtin_expect (_dlfcn_hook != NULL, 0))
+    return _dlfcn_hook->dlsym (handle, name, DL_CALLER);
+# endif
+
   struct dlsym_args args;
-  args.who = RETURN_ADDRESS (0);
+  args.who = DL_CALLER;
   args.handle = handle;
   args.name = name;
 
@@ -59,3 +74,7 @@ dlsym (void *handle, const char *name)
 
   return result;
 }
+# ifdef SHARED
+strong_alias (__dlsym, dlsym)
+# endif
+#endif

dlfcn/dlvsym.c

@@ -22,6 +22,17 @@
 
 #include <ldsodefs.h>
 
+#if !defined SHARED && defined IS_IN_libdl
+
+void *
+weak_function
+dlvsym (void *handle, const char *name, const char *version_str)
+{
+  return __dlvsym (handle, name, version_str, RETURN_ADDRESS (0));
+}
+
+#else
+
 struct dlvsym_args
 {
   /* The arguments to dlvsym_doit.  */
@@ -44,13 +55,18 @@ dlvsym_doit (void *a)
 }
 
 void *
-__dlvsym (void *handle, const char *name, const char *version_str)
+__dlvsym (void *handle, const char *name, const char *version_str
+	  DL_CALLER_DECL)
 {
-  struct dlvsym_args args;
+# ifdef SHARED
+  if (__builtin_expect (_dlfcn_hook != NULL, 0))
+    return _dlfcn_hook->dlvsym (handle, name, version_str, DL_CALLER);
+# endif
 
+  struct dlvsym_args args;
   args.handle = handle;
   args.name = name;
-  args.who = RETURN_ADDRESS (0);
+  args.who = DL_CALLER;
   args.version = version_str;
 
   /* Protect against concurrent loads and unloads.  */
@@ -62,4 +78,7 @@ __dlvsym (void *handle, const char *name, const char *version_str)
 
   return result;
 }
+# ifdef SHARED
 weak_alias (__dlvsym, dlvsym)
+# endif
+#endif

dlfcn/modstatic2.c

@@ -0,0 +1,228 @@
+#include <dlfcn.h>
+#include <link.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <gnu/lib-names.h>
+
+int test (FILE *out, int a);
+
+int
+test (FILE *out, int a)
+{
+  fputs ("in modstatic2.c (test)\n", out);
+
+  void *handle = dlopen ("modstatic2-nonexistent.so", RTLD_LAZY);
+  if (handle == NULL)
+    fprintf (out, "nonexistent: %s\n", dlerror ());
+  else
+    exit (1);
+
+  handle = dlopen ("modstatic2.so", RTLD_LAZY);
+  if (handle == NULL)
+    {
+      fprintf (out, "%s\n", dlerror ());
+      exit (1);
+    }
+
+  int (*test2) (FILE *, int);
+  test2 = dlsym (handle, "test");
+  if (test2 == NULL)
+    {
+      fprintf (out, "%s\n", dlerror ());
+      exit (1);
+    }
+  if (test2 != test)
+    {
+      fprintf (out, "test %p != test2 %p\n", test, test2);
+      exit (1);
+    }
+
+  Dl_info info;
+  int res = dladdr (test2, &info);
+  if (res == 0)
+    {
+      fputs ("dladdr returned 0\n", out);
+      exit (1);
+    }
+  else
+    {
+      if (strstr (info.dli_fname, "modstatic2.so") == NULL
+	  || strcmp (info.dli_sname, "test") != 0)
+	{
+	  fprintf (out, "fname %s sname %s\n", info.dli_fname, info.dli_sname);
+	  exit (1);
+	}
+      if (info.dli_saddr != (void *) test2)
+	{
+	  fprintf (out, "saddr %p != test %p\n", info.dli_saddr, test2);
+	  exit (1);
+	}
+    }
+
+  ElfW(Sym) *sym;
+  void *symp;
+  res = dladdr1 (test2, &info, &symp, RTLD_DL_SYMENT);
+  if (res == 0)
+    {
+      fputs ("dladdr1 returned 0\n", out);
+      exit (1);
+    }
+  else
+    {
+      if (strstr (info.dli_fname, "modstatic2.so") == NULL
+	  || strcmp (info.dli_sname, "test") != 0)
+	{
+	  fprintf (out, "fname %s sname %s\n", info.dli_fname, info.dli_sname);
+	  exit (1);
+	}
+      if (info.dli_saddr != (void *) test2)
+	{
+	  fprintf (out, "saddr %p != test %p\n", info.dli_saddr, test2);
+	  exit (1);
+	}
+      sym = symp;
+      if (sym == NULL)
+	{
+	  fputs ("sym == NULL\n", out);
+	  exit (1);
+	}
+      if (ELF32_ST_BIND (sym->st_info) != STB_GLOBAL
+	  || ELF32_ST_VISIBILITY (sym->st_other) != STV_DEFAULT)
+	{
+	  fprintf (out, "bind %d visibility %d\n",
+		   (int) ELF32_ST_BIND (sym->st_info),
+		   (int) ELF32_ST_VISIBILITY (sym->st_other));
+	  exit (1);
+	}
+    }
+
+  Lmid_t lmid;
+  res = dlinfo (handle, RTLD_DI_LMID, &lmid);
+  if (res != 0)
+    {
+      fprintf (out, "dlinfo returned %d %s\n", res, dlerror ());
+      exit (1);
+    }
+  else if (lmid != LM_ID_BASE)
+    {
+      fprintf (out, "lmid %d != %d\n", (int) lmid, (int) LM_ID_BASE);
+      exit (1);
+    }
+
+  void *handle2 = dlopen (LIBDL_SO, RTLD_LAZY);
+  if (handle2 == NULL)
+    {
+      fprintf (out, "libdl.so: %s\n", dlerror ());
+      exit (1);
+    }
+
+#ifdef DO_VERSIONING
+  if (dlvsym (handle2, "_dlfcn_hook", "GLIBC_PRIVATE") == NULL)
+    {
+      fprintf (out, "dlvsym: %s\n", dlerror ());
+      exit (1);
+    }
+#endif
+
+  void *(*dlsymfn) (void *, const char *);
+  dlsymfn = dlsym (handle2, "dlsym");
+  if (dlsymfn == NULL)
+    {
+      fprintf (out, "dlsym \"dlsym\": %s\n", dlerror ());
+      exit (1);
+    }
+  void *test3 = dlsymfn (handle, "test");
+  if (test3 == NULL)
+    {
+      fprintf (out, "%s\n", dlerror ());
+      exit (1);
+    }
+  else if (test3 != (void *) test2)
+    {
+      fprintf (out, "test2 %p != test3 %p\n", test2, test3);
+      exit (1);
+    }
+
+  dlclose (handle2);
+  dlclose (handle);
+
+  handle = dlmopen (LM_ID_BASE, "modstatic2.so", RTLD_LAZY);
+  if (handle == NULL)
+    {
+      fprintf (out, "%s\n", dlerror ());
+      exit (1);
+    }
+  dlclose (handle);
+
+  handle = dlmopen (LM_ID_NEWLM, "modstatic2.so", RTLD_LAZY);
+  if (handle == NULL)
+    fprintf (out, "LM_ID_NEWLM: %s\n", dlerror ());
+  else
+    {
+      fputs ("LM_ID_NEWLM unexpectedly succeeded\n", out);
+      exit (1);
+    }
+
+  handle = dlopen ("modstatic.so", RTLD_LAZY);
+  if (handle == NULL)
+    {
+      fprintf (out, "%s\n", dlerror ());
+      exit (1);
+    }
+
+  int (*test4) (int);
+  test4 = dlsym (handle, "test");
+  if (test4 == NULL)
+    {
+      fprintf (out, "%s\n", dlerror ());
+      exit (1);
+    }
+
+  res = test4 (16);
+  if (res != 16 + 16)
+    {
+      fprintf (out, "modstatic.so (test) returned %d\n", res);
+      exit (1);
+    }
+
+  res = dladdr1 (test4, &info, &symp, RTLD_DL_SYMENT);
+  if (res == 0)
+    {
+      fputs ("dladdr1 returned 0\n", out);
+      exit (1);
+    }
+  else
+    {
+      if (strstr (info.dli_fname, "modstatic.so") == NULL
+	  || strcmp (info.dli_sname, "test") != 0)
+	{
+	  fprintf (out, "fname %s sname %s\n", info.dli_fname, info.dli_sname);
+	  exit (1);
+	}
+      if (info.dli_saddr != (void *) test4)
+	{
+	  fprintf (out, "saddr %p != test %p\n", info.dli_saddr, test4);
+	  exit (1);
+	}
+      sym = symp;
+      if (sym == NULL)
+	{
+	  fputs ("sym == NULL\n", out);
+	  exit (1);
+	}
+      if (ELF32_ST_BIND (sym->st_info) != STB_GLOBAL
+	  || ELF32_ST_VISIBILITY (sym->st_other) != STV_DEFAULT)
+	{
+	  fprintf (out, "bind %d visibility %d\n",
+		   (int) ELF32_ST_BIND (sym->st_info),
+		   (int) ELF32_ST_VISIBILITY (sym->st_other));
+	  exit (1);
+	}
+    }
+
+  dlclose (handle);
+
+  fputs ("leaving modstatic2.c (test)\n", out);
+  return a + a;
+}

dlfcn/sdladdr.c

@@ -0,0 +1 @@
+#include "dladdr.c"

dlfcn/sdladdr1.c

@@ -0,0 +1 @@
+#include "dladdr1.c"

dlfcn/sdlclose.c

@@ -0,0 +1 @@
+#include "dlclose.c"

dlfcn/sdlerror.c

@@ -0,0 +1 @@
+#include "dlerror.c"

dlfcn/sdlinfo.c

@@ -1 +1 @@
-mvme136.ld
+#include "dlinfo.c"

dlfcn/sdlmopen.c

@@ -0,0 +1 @@
+#include "dlmopen.c"

dlfcn/sdlopen.c

@@ -0,0 +1 @@
+#include "dlopen.c"

dlfcn/sdlsym.c

@@ -0,0 +1 @@
+#include "dlsym.c"

dlfcn/sdlvsym.c

@@ -0,0 +1 @@
+#include "dlvsym.c"

dlfcn/tststatic2.c

@@ -0,0 +1,166 @@
+#include <dlfcn.h>
+#include <link.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <gnu/lib-names.h>
+
+int
+main (void)
+{
+  void *handle = dlopen ("modstatic2-nonexistent.so", RTLD_LAZY);
+  if (handle == NULL)
+    printf ("nonexistent: %s\n", dlerror ());
+  else
+    exit (1);
+
+  handle = dlopen ("modstatic2.so", RTLD_LAZY);
+  if (handle == NULL)
+    {
+      printf ("%s\n", dlerror ());
+      exit (1);
+    }
+
+  int (*test) (FILE *, int);
+  test = dlsym (handle, "test");
+  if (test == NULL)
+    {
+      printf ("%s\n", dlerror ());
+      exit (1);
+    }
+
+  Dl_info info;
+  int res = dladdr (test, &info);
+  if (res == 0)
+    {
+      puts ("dladdr returned 0");
+      exit (1);
+    }
+  else
+    {
+      if (strstr (info.dli_fname, "modstatic2.so") == NULL
+	  || strcmp (info.dli_sname, "test") != 0)
+	{
+	  printf ("fname %s sname %s\n", info.dli_fname, info.dli_sname);
+	  exit (1);
+	}
+      if (info.dli_saddr != (void *) test)
+	{
+	  printf ("saddr %p != test %p\n", info.dli_saddr, test);
+	  exit (1);
+	}
+    }
+
+  ElfW(Sym) *sym;
+  void *symp;
+  res = dladdr1 (test, &info, &symp, RTLD_DL_SYMENT);
+  if (res == 0)
+    {
+      puts ("dladdr1 returned 0");
+      exit (1);
+    }
+  else
+    {
+      if (strstr (info.dli_fname, "modstatic2.so") == NULL
+	  || strcmp (info.dli_sname, "test") != 0)
+	{
+	  printf ("fname %s sname %s\n", info.dli_fname, info.dli_sname);
+	  exit (1);
+	}
+      if (info.dli_saddr != (void *) test)
+	{
+	  printf ("saddr %p != test %p\n", info.dli_saddr, test);
+	  exit (1);
+	}
+      sym = symp;
+      if (sym == NULL)
+	{
+	  puts ("sym == NULL\n");
+	  exit (1);
+	}
+      if (ELF32_ST_BIND (sym->st_info) != STB_GLOBAL
+	  || ELF32_ST_VISIBILITY (sym->st_other) != STV_DEFAULT)
+	{
+	  printf ("bind %d visibility %d\n",
+		  (int) ELF32_ST_BIND (sym->st_info),
+		  (int) ELF32_ST_VISIBILITY (sym->st_other));
+	  exit (1);
+	}
+    }
+
+  Lmid_t lmid;
+  res = dlinfo (handle, RTLD_DI_LMID, &lmid);
+  if (res != 0)
+    {
+      printf ("dlinfo returned %d %s\n", res, dlerror ());
+      exit (1);
+    }
+  else if (lmid != LM_ID_BASE)
+    {
+      printf ("lmid %d != %d\n", (int) lmid, (int) LM_ID_BASE);
+      exit (1);
+    }
+
+  res = test (stdout, 2);
+  if (res != 4)
+    {
+      printf ("Got %i, expected 4\n", res);
+      exit (1);
+    }
+
+  void *handle2 = dlopen (LIBDL_SO, RTLD_LAZY);
+  if (handle2 == NULL)
+    {
+      printf ("libdl.so: %s\n", dlerror ());
+      exit (1);
+    }
+
+#ifdef DO_VERSIONING
+  if (dlvsym (handle2, "_dlfcn_hook", "GLIBC_PRIVATE") == NULL)
+    {
+      printf ("dlvsym: %s\n", dlerror ());
+      exit (1);
+    }
+#endif
+
+  void *(*dlsymfn) (void *, const char *);
+  dlsymfn = dlsym (handle2, "dlsym");
+  if (dlsymfn == NULL)
+    {
+      printf ("dlsym \"dlsym\": %s\n", dlerror ());
+      exit (1);
+    }
+  void *test2 = dlsymfn (handle, "test");
+  if (test2 == NULL)
+    {
+      printf ("%s\n", dlerror ());
+      exit (1);
+    }
+  else if (test2 != (void *) test)
+    {
+      printf ("test %p != test2 %p\n", test, test2);
+      exit (1);
+    }
+
+  dlclose (handle2);
+  dlclose (handle);
+
+  handle = dlmopen (LM_ID_BASE, "modstatic2.so", RTLD_LAZY);
+  if (handle == NULL)
+    {
+      printf ("%s\n", dlerror ());
+      exit (1);
+    }
+  dlclose (handle);
+
+  handle = dlmopen (LM_ID_NEWLM, "modstatic2.so", RTLD_LAZY);
+  if (handle == NULL)
+    printf ("LM_ID_NEWLM: %s\n", dlerror ());
+  else
+    {
+      puts ("LM_ID_NEWLM unexpectedly succeeded");
+      exit (1);
+    }
+
+  return 0;
+}

elf/Makefile

@@ -82,7 +82,8 @@ distribute	:= rtld-Rules \
 		   tst-array1.exp tst-array2.exp tst-array4.exp \
 		   tst-array2dep.c tst-piemod1.c \
 		   tst-execstack-mod.c tst-dlmodcount.c \
-		   check-textrel.c dl-sysdep.h test-dlopenrpathmod.c
+		   check-textrel.c dl-sysdep.h test-dlopenrpathmod.c \
+		   tst-deep1mod1.c tst-deep1mod2.c tst-deep1mod3.c
 
 CFLAGS-dl-runtime.c = -fexceptions -fasynchronous-unwind-tables
 CFLAGS-dl-lookup.c = -fexceptions -fasynchronous-unwind-tables
@@ -152,7 +153,8 @@ tests += loadtest restest1 preloadtest loadfail multiload origtest resolvfail \
 	 restest2 next dblload dblunload reldep5 reldep6 reldep7 reldep8 \
 	 circleload1 tst-tls3 tst-tls4 tst-tls5 tst-tls6 tst-tls7 tst-tls8 \
 	 tst-tls10 tst-tls11 tst-tls12 tst-tls13 tst-tls14 tst-align \
-	 $(tests-execstack-$(have-z-execstack)) tst-dlmodcount tst-dlopenrpath
+	 $(tests-execstack-$(have-z-execstack)) tst-dlmodcount \
+	 tst-dlopenrpath tst-deep1 tst-dlmopen1 tst-dlmopen2 tst-dlmopen3
 #	 reldep9
 test-srcs = tst-pathopt
 tests-vis-yes = vismain
@@ -185,7 +187,8 @@ modules-names = testobj1 testobj2 testobj3 testobj4 testobj5 testobj6 \
 		reldep8mod1 reldep8mod2 reldep8mod3 \
 		reldep9mod1 reldep9mod2 reldep9mod3 \
 		tst-alignmod $(modules-execstack-$(have-z-execstack)) \
-		tst-dlopenrpathmod
+		tst-dlopenrpathmod tst-deep1mod1 tst-deep1mod2 tst-deep1mod3 \
+		tst-dlmopen1mod
 ifeq (yes,$(have-initfini-array))
 modules-names += tst-array2dep
 endif
@@ -754,3 +757,19 @@ $(objpfx)tst-dlopenrpath: $(objpfx)tst-dlopenrpathmod.so $(libdl)
 CFLAGS-tst-dlopenrpath.c += -DPFX=\"$(objpfx)\"
 LDFLAGS-tst-dlopenrpathmod.so += -Wl,-rpath,\$$ORIGIN/test-subdir
 $(objpfx)tst-dlopenrpath.out: $(objpfx)firstobj.so
+
+$(objpfx)tst-deep1mod2.so: $(objpfx)tst-deep1mod3.so
+$(objpfx)tst-deep1: $(libdl) $(objpfx)tst-deep1mod1.so
+$(objpfx)tst-deep1.out: $(objpfx)tst-deep1mod2.so
+LDFLAGS-tst-deep1 += -rdynamic
+tst-deep1mod3.so-no-z-defs = yes
+
+$(objpfx)tst-dlmopen1mod.so: $(libdl)
+$(objpfx)tst-dlmopen1: $(libdl)
+$(objpfx)tst-dlmopen1.out: $(objpfx)tst-dlmopen1mod.so
+
+$(objpfx)tst-dlmopen2: $(libdl)
+$(objpfx)tst-dlmopen2.out: $(objpfx)tst-dlmopen1mod.so
+
+$(objpfx)tst-dlmopen3: $(libdl)
+$(objpfx)tst-dlmopen3.out: $(objpfx)tst-dlmopen1mod.so

elf/Versions

@@ -54,5 +54,7 @@ ld {
     _dl_get_tls_static_info; _dl_allocate_tls_init;
     _dl_tls_setup; _dl_rtld_di_serinfo;
     _dl_make_stack_executable;
+    # Only here for gdb while a better method is developed.
+    _dl_debug_state;
   }
 }

elf/dl-addr.c

@@ -28,7 +28,7 @@ _dl_addr (const void *address, Dl_info *info,
 	  struct link_map **mapp, const ElfW(Sym) **symbolp)
 {
   const ElfW(Addr) addr = DL_LOOKUP_ADDRESS (address);
-  struct link_map *l, *match;
+  struct link_map *match;
   const ElfW(Sym) *symtab, *matchsym, *symtabend;
   const char *strtab;
   ElfW(Word) strtabsize;
@@ -38,26 +38,27 @@ _dl_addr (const void *address, Dl_info *info,
 
   /* Find the highest-addressed object that ADDRESS is not below.  */
   match = NULL;
-  for (l = GL(dl_loaded); l; l = l->l_next)
-    if (addr >= l->l_map_start && addr < l->l_map_end)
-      {
-	/* We know ADDRESS lies within L if in any shared object.
-	   Make sure it isn't past the end of L's segments.  */
-	size_t n = l->l_phnum;
-	if (n > 0)
-	  {
-	    do
-	      --n;
-	    while (l->l_phdr[n].p_type != PT_LOAD);
-	    if (addr >= (l->l_addr +
-			 l->l_phdr[n].p_vaddr + l->l_phdr[n].p_memsz))
-	      /* Off the end of the highest-addressed shared object.  */
-	      continue;
-	  }
+  for (Lmid_t ns = 0; ns < DL_NNS; ++ns)
+    for (struct link_map *l = GL(dl_ns)[ns]._ns_loaded; l; l = l->l_next)
+      if (addr >= l->l_map_start && addr < l->l_map_end)
+	{
+	  /* We know ADDRESS lies within L if in any shared object.
+	     Make sure it isn't past the end of L's segments.  */
+	  size_t n = l->l_phnum;
+	  if (n > 0)
+	    {
+	      do
+		--n;
+	      while (l->l_phdr[n].p_type != PT_LOAD);
+	      if (addr >= (l->l_addr +
+			   l->l_phdr[n].p_vaddr + l->l_phdr[n].p_memsz))
+		/* Off the end of the highest-addressed shared object.  */
+		continue;
+	    }
 
-	match = l;
-	break;
-      }
+	  match = l;
+	  break;
+	}
 
   int result = 0;
   if (match != NULL)
@@ -67,8 +68,8 @@ _dl_addr (const void *address, Dl_info *info,
       info->dli_fbase = (void *) match->l_map_start;
 
       /* If this is the main program the information is incomplete.  */
-      if (__builtin_expect (l->l_name[0], 'a') == '\0'
-	  && l->l_type == lt_executable)
+      if (__builtin_expect (match->l_name[0], 'a') == '\0'
+	  && match->l_type == lt_executable)
 	info->dli_fname = _dl_argv[0];
 
       symtab = (const void *) D_PTR (match, l_info[DT_SYMTAB]);
@@ -91,6 +92,9 @@ _dl_addr (const void *address, Dl_info *info,
 	 dynamic symbol table!!  */
       for (matchsym = NULL; (void *) symtab < (void *) symtabend; ++symtab)
 	if (addr >= match->l_addr + symtab->st_value
+#if defined USE_TLS
+	    && ELFW(ST_TYPE) (symtab->st_info) != STT_TLS
+#endif
 	    && ((symtab->st_size == 0
 		 && addr == match->l_addr + symtab->st_value)
 		|| addr < match->l_addr + symtab->st_value + symtab->st_size)
@@ -109,8 +113,10 @@ _dl_addr (const void *address, Dl_info *info,
 	{
 	  /* We found a symbol close by.  Fill in its name and exact
 	     address.  */
+	  lookup_t matchl = LOOKUP_VALUE (match);
+
 	  info->dli_sname = strtab + matchsym->st_name;
-	  info->dli_saddr = (void *) (match->l_addr + matchsym->st_value);
+	  info->dli_saddr = DL_SYMBOL_ADDRESS (matchl, matchsym);
 	}
       else
 	{

elf/dl-caller.c

@@ -35,44 +35,46 @@ _dl_check_caller (const void *caller, enum allowmask mask)
 #endif
   static const char expected4[] = LD_SO;
 
-  for (struct link_map *l = GL(dl_loaded); l != NULL; l = l->l_next)
-    if (caller >= (const void *) l->l_map_start
-	&& caller < (const void *) l->l_text_end)
-      {
-	/* The address falls into this DSO's address range.  Check the
-	   name.  */
-	if ((mask & allow_libc) && strcmp (expected1, l->l_name) == 0)
-	  return 0;
-	if ((mask & allow_libdl) && strcmp (expected2, l->l_name) == 0)
-	  return 0;
+  for (Lmid_t ns = 0; ns < DL_NNS; ++ns)
+    for (struct link_map *l = GL(dl_ns)[ns]._ns_loaded; l != NULL;
+	 l = l->l_next)
+      if (caller >= (const void *) l->l_map_start
+	  && caller < (const void *) l->l_text_end)
+	{
+	  /* The address falls into this DSO's address range.  Check the
+	     name.  */
+	  if ((mask & allow_libc) && strcmp (expected1, l->l_name) == 0)
+	    return 0;
+	  if ((mask & allow_libdl) && strcmp (expected2, l->l_name) == 0)
+	    return 0;
 #ifdef LIBPTHREAD_SO
-	if ((mask & allow_libpthread) && strcmp (expected3, l->l_name) == 0)
-	  return 0;
+	  if ((mask & allow_libpthread) && strcmp (expected3, l->l_name) == 0)
+	    return 0;
 #endif
-	if ((mask & allow_ldso) && strcmp (expected4, l->l_name) == 0)
-	  return 0;
+	  if ((mask & allow_ldso) && strcmp (expected4, l->l_name) == 0)
+	    return 0;
 
-	struct libname_list *runp = l->l_libname;
+	  struct libname_list *runp = l->l_libname;
 
-	while (runp != NULL)
-	  {
-	    if ((mask & allow_libc) && strcmp (expected1, runp->name) == 0)
-		  return 0;
-	    if ((mask & allow_libdl) && strcmp (expected2, runp->name) == 0)
-	      return 0;
+	  while (runp != NULL)
+	    {
+	      if ((mask & allow_libc) && strcmp (expected1, runp->name) == 0)
+		return 0;
+	      if ((mask & allow_libdl) && strcmp (expected2, runp->name) == 0)
+		return 0;
 #ifdef LIBPTHREAD_SO
-	    if ((mask & allow_libpthread)
-		&& strcmp (expected3, runp->name) == 0)
-	      return 0;
+	      if ((mask & allow_libpthread)
+		  && strcmp (expected3, runp->name) == 0)
+		return 0;
 #endif
-	    if ((mask & allow_ldso) && strcmp (expected4, runp->name) == 0)
-	      return 0;
+	      if ((mask & allow_ldso) && strcmp (expected4, runp->name) == 0)
+		return 0;
 
-	    runp = runp->next;
-	  }
+	      runp = runp->next;
+	    }
 
-	break;
-      }
+	  break;
+	}
 
   /* Maybe the dynamic linker is not yet on the list.  */
   if ((mask & allow_ldso) != 0

elf/dl-close.c

@@ -130,6 +130,10 @@ _dl_close (void *_map)
   /* Acquire the lock.  */
   __rtld_lock_lock_recursive (GL(dl_load_lock));
 
+  /* One less direct use.  */
+  assert (map->l_direct_opencount > 0);
+  --map->l_direct_opencount;
+
   /* Decrement the reference count.  */
   if (map->l_opencount > 1 || map->l_type != lt_loaded)
     {
@@ -141,6 +145,12 @@ _dl_close (void *_map)
       /* Decrement the object's reference counter, not the dependencies'.  */
       --map->l_opencount;
 
+      /* If the direct use counter reaches zero we have to decrement
+	 all the dependencies' usage counter.  */
+      if (map->l_direct_opencount == 0)
+	for (i = 1; i < map->l_searchlist.r_nlist; ++i)
+	  --map->l_searchlist.r_list[i]->l_opencount;
+
       __rtld_lock_unlock_recursive (GL(dl_load_lock));
       return;
     }
@@ -167,12 +177,13 @@ _dl_close (void *_map)
   for (i = 1; list[i] != NULL; ++i)
     if ((list[i]->l_flags_1 & DF_1_NODELETE) == 0
 	/* Decrement counter.  */
-	&& --new_opencount[i] == 0)
+	&& (assert (new_opencount[i] > 0), --new_opencount[i] == 0))
       {
 	void mark_removed (struct link_map *remmap)
 	  {
 	    /* Test whether this object was also loaded directly.  */
-	    if (remmap->l_searchlist.r_list != NULL)
+	    if (remmap->l_searchlist.r_list != NULL
+		&& remmap->l_direct_opencount > 0)
 	      {
 		/* In this case we have to decrement all the dependencies of
 		   this object.  They are all in MAP's dependency list.  */
@@ -184,6 +195,7 @@ _dl_close (void *_map)
 		      || ! dep_list[j]->l_init_called)
 		{
 		  assert (dep_list[j]->l_idx < map->l_searchlist.r_nlist);
+		  assert (new_opencount[dep_list[j]->l_idx] > 0);
 		  if (--new_opencount[dep_list[j]->l_idx] == 0)
 		    {
 		      assert (dep_list[j]->l_type == lt_loaded);
@@ -197,17 +209,53 @@ _dl_close (void *_map)
 		unsigned int j;
 		for (j = 0; j < remmap->l_reldepsact; ++j)
 		  {
+		    struct link_map *depmap = remmap->l_reldeps[j];
+
 		    /* Find out whether this object is in our list.  */
-		    if (remmap->l_reldeps[j]->l_idx < nopencount
-			&& (list[remmap->l_reldeps[j]->l_idx]
-			    == remmap->l_reldeps[j]))
-		      /* Yes, it is.  */
-		      if (--new_opencount[remmap->l_reldeps[j]->l_idx] == 0)
-			{
-			  /* This one is now gone, too.  */
-			  assert (remmap->l_reldeps[j]->l_type == lt_loaded);
-			  mark_removed (remmap->l_reldeps[j]);
-			}
+		    if (depmap->l_idx < nopencount
+			&& list[depmap->l_idx] == depmap)
+		      {
+			/* Yes, it is.  If is has a search list, make a
+			   recursive call to handle this.  */
+			if (depmap->l_searchlist.r_list != NULL)
+			  {
+			    assert (new_opencount[depmap->l_idx] > 0);
+			    if (--new_opencount[depmap->l_idx] == 0)
+			      {
+				/* This one is now gone, too.  */
+				assert (depmap->l_type == lt_loaded);
+				mark_removed (depmap);
+			      }
+			  }
+			else
+			  {
+			    /* Otherwise we have to handle the dependency
+			       deallocation here.  */
+			    unsigned int k;
+			    for (k = 0; depmap->l_initfini[k] != NULL; ++k)
+			      {
+				struct link_map *rl = depmap->l_initfini[k];
+
+				if (rl->l_idx < nopencount
+				    && list[rl->l_idx] == rl)
+				  {
+				    assert (new_opencount[rl->l_idx] > 0);
+				    if (--new_opencount[rl->l_idx] ==  0)
+				      {
+					/* Another module to remove.  */
+					assert (rl->l_type == lt_loaded);
+					mark_removed (rl);
+				      }
+				  }
+				else
+				  {
+				    assert (rl->l_opencount > 0);
+				    if (--rl->l_opencount == 0)
+				      mark_removed (rl);
+				  }
+			      }
+			  }
+		      }
 		  }
 	      }
 	  }
@@ -225,7 +273,8 @@ _dl_close (void *_map)
 	{
 	  /* When debugging print a message first.  */
 	  if (__builtin_expect (GLRO(dl_debug_mask) & DL_DEBUG_IMPCALLS, 0))
-	    GLRO(dl_debug_printf) ("\ncalling fini: %s\n\n", imap->l_name);
+	    GLRO(dl_debug_printf) ("\ncalling fini: %s [%lu]\n\n",
+				   imap->l_name, imap->l_ns);
 
 	  /* Call its termination function.  Do not do it for
 	     half-cooked objects.  */
@@ -340,18 +389,21 @@ _dl_close (void *_map)
 	  if (__builtin_expect (imap->l_global, 0))
 	    {
 	      /* This object is in the global scope list.  Remove it.  */
-	      unsigned int cnt = GL(dl_main_searchlist)->r_nlist;
+	      unsigned int cnt
+		= GL(dl_ns)[imap->l_ns]._ns_main_searchlist->r_nlist;
 
 	      do
 		--cnt;
-	      while (GL(dl_main_searchlist)->r_list[cnt] != imap);
+	      while (GL(dl_ns)[imap->l_ns]._ns_main_searchlist->r_list[cnt]
+		     != imap);
 
 	      /* The object was already correctly registered.  */
-	      while (++cnt < GL(dl_main_searchlist)->r_nlist)
-		GL(dl_main_searchlist)->r_list[cnt - 1]
-		  = GL(dl_main_searchlist)->r_list[cnt];
+	      while (++cnt
+		     < GL(dl_ns)[imap->l_ns]._ns_main_searchlist->r_nlist)
+		GL(dl_ns)[imap->l_ns]._ns_main_searchlist->r_list[cnt - 1]
+		  = GL(dl_ns)[imap->l_ns]._ns_main_searchlist->r_list[cnt];
 
-	      --GL(dl_main_searchlist)->r_nlist;
+	      --GL(dl_ns)[imap->l_ns]._ns_main_searchlist->r_nlist;
 	    }
 
 #ifdef USE_TLS
@@ -442,19 +494,18 @@ _dl_close (void *_map)
 	  DL_UNMAP (imap);
 
 	  /* Finally, unlink the data structure and free it.  */
-#ifdef SHARED
-	  /* We will unlink the first object only if this is a statically
-	     linked program.  */
-	  assert (imap->l_prev != NULL);
-	  imap->l_prev->l_next = imap->l_next;
-#else
 	  if (imap->l_prev != NULL)
 	    imap->l_prev->l_next = imap->l_next;
 	  else
-	    GL(dl_loaded) = imap->l_next;
+	    {
+#ifdef SHARED
+	      assert (imap->l_ns != LM_ID_BASE);
 #endif
-	  --GL(dl_nloaded);
-	  if (imap->l_next)
+	      GL(dl_ns)[imap->l_ns]._ns_loaded = imap->l_next;
+	    }
+
+	  --GL(dl_ns)[imap->l_ns]._ns_nloaded;
+	  if (imap->l_next != NULL)
 	    imap->l_next->l_prev = imap->l_prev;
 
 	  free (imap->l_versions);
@@ -528,7 +579,7 @@ _dl_close (void *_map)
   if (any_tls)
     {
       if (__builtin_expect (++GL(dl_tls_generation) == 0, 0))
-	__libc_fatal (_("TLS generation counter wrapped!  Please send report with the 'glibcbug' script."));
+	__libc_fatal (_("TLS generation counter wrapped!  Please report as described in <http://www.gnu.org/software/libc/bugs.html>."));
 
       if (tls_free_end == GL(dl_tls_static_used))
 	GL(dl_tls_static_used) = tls_free_start;
@@ -596,22 +647,26 @@ free_slotinfo (struct dtv_slotinfo_list **elemp)
 
 libc_freeres_fn (free_mem)
 {
-  if (__builtin_expect (GL(dl_global_scope_alloc), 0) != 0
-      && (GL(dl_main_searchlist)->r_nlist
-	  == GLRO(dl_initial_searchlist).r_nlist))
-    {
-      /* All object dynamically loaded by the program are unloaded.  Free
-	 the memory allocated for the global scope variable.  */
-      struct link_map **old = GL(dl_main_searchlist)->r_list;
+  for (Lmid_t ns = 0; ns < DL_NNS; ++ns)
+    if (__builtin_expect (GL(dl_ns)[ns]._ns_global_scope_alloc, 0) != 0
+	&& (GL(dl_ns)[ns]._ns_main_searchlist->r_nlist
+	    // XXX Check whether we need NS-specific initial_searchlist
+	    == GLRO(dl_initial_searchlist).r_nlist))
+      {
+	/* All object dynamically loaded by the program are unloaded.  Free
+	   the memory allocated for the global scope variable.  */
+	struct link_map **old = GL(dl_ns)[ns]._ns_main_searchlist->r_list;
 
-      /* Put the old map in.  */
-      GL(dl_main_searchlist)->r_list = GLRO(dl_initial_searchlist).r_list;
-      /* Signal that the original map is used.  */
-      GL(dl_global_scope_alloc) = 0;
+	/* Put the old map in.  */
+	GL(dl_ns)[ns]._ns_main_searchlist->r_list
+	  // XXX Check whether we need NS-specific initial_searchlist
+	  = GLRO(dl_initial_searchlist).r_list;
+	/* Signal that the original map is used.  */
+	GL(dl_ns)[ns]._ns_global_scope_alloc = 0;
 
-      /* Now free the old map.  */
-      free (old);
-    }
+	/* Now free the old map.  */
+	free (old);
+      }
 
 #ifdef USE_TLS
   if (USE___THREAD || GL(dl_tls_dtv_slotinfo_list) != NULL)

elf/dl-conflict.c

@@ -54,8 +54,10 @@ _dl_resolve_conflicts (struct link_map *l, ElfW(Rela) *conflict,
     (map) = resolve_conflict_map;					      \
   } while (0)
 
+    /* Prelinking makes no sense for anything but the main namespace.  */
+    assert (l->l_ns == LM_ID_BASE);
     struct link_map *resolve_conflict_map __attribute__ ((__unused__))
-      = GL(dl_loaded);
+      = GL(dl_ns)[LM_ID_BASE]._ns_loaded;
 
 #include "dynamic-link.h"
 

elf/dl-debug.c

@@ -39,7 +39,9 @@ _dl_debug_initialize (ElfW(Addr) ldbase)
       /* Tell the debugger where to find the map of loaded objects.  */
       _r_debug.r_version = 1	/* R_DEBUG_VERSION XXX */;
       _r_debug.r_ldbase = ldbase;
-      _r_debug.r_map = GL(dl_loaded);
+      // XXX This is problematic.  It means we cannot tell the debugger
+      // XXX about namespaces other than the main one.
+      _r_debug.r_map = GL(dl_ns)[LM_ID_BASE]._ns_loaded;
       _r_debug.r_brk = (ElfW(Addr)) &_dl_debug_state;
     }
 
@@ -55,3 +57,4 @@ void
 _dl_debug_state (void)
 {
 }
+rtld_hidden_def (_dl_debug_state)

elf/dl-deps.c

@@ -63,7 +63,8 @@ openaux (void *a)
   args->aux = _dl_map_object (args->map, args->name, 0,
 			      (args->map->l_type == lt_executable
 			       ? lt_library : args->map->l_type),
-			      args->trace_mode, args->open_mode);
+			      args->trace_mode, args->open_mode,
+			      args->map->l_ns);
 }
 
 static ptrdiff_t
@@ -509,8 +510,8 @@ _dl_map_object_deps (struct link_map *map,
       runp->map->l_reserved = 0;
     }
 
-  if (__builtin_expect(GLRO(dl_debug_mask) & DL_DEBUG_PRELINK, 0) != 0
-      && map == GL(dl_loaded))
+  if (__builtin_expect (GLRO(dl_debug_mask) & DL_DEBUG_PRELINK, 0) != 0
+      && map == GL(dl_ns)[LM_ID_BASE]._ns_loaded)
     {
       /* If we are to compute conflicts, we have to build local scope
 	 for each library, not just the ultimate loader.  */

elf/dl-fini.c

@@ -32,153 +32,187 @@ internal_function
 _dl_fini (void)
 {
   /* Lots of fun ahead.  We have to call the destructors for all still
-     loaded objects.  The problem is that the ELF specification now
-     demands that dependencies between the modules are taken into account.
-     I.e., the destructor for a module is called before the ones for any
-     of its dependencies.
+     loaded objects, in all namespaces.  The problem is that the ELF
+     specification now demands that dependencies between the modules
+     are taken into account.  I.e., the destructor for a module is
+     called before the ones for any of its dependencies.
 
      To make things more complicated, we cannot simply use the reverse
      order of the constructors.  Since the user might have loaded objects
      using `dlopen' there are possibly several other modules with its
      dependencies to be taken into account.  Therefore we have to start
      determining the order of the modules once again from the beginning.  */
-  unsigned int i;
-  unsigned int nloaded;
-  struct link_map *l;
-  struct link_map **maps;
+  struct link_map **maps = NULL;
+  size_t maps_size = 0;
 
-  /* Protect against concurrent loads and unloads.  */
-  __rtld_lock_lock_recursive (GL(dl_load_lock));
-
-  nloaded = GL(dl_nloaded);
-
-  /* XXX Could it be (in static binaries) that there is no object loaded?  */
-  assert (nloaded > 0);
-
-  /* Now we can allocate an array to hold all the pointers and copy
-     the pointers in.  */
-  maps = (struct link_map **) alloca (nloaded * sizeof (struct link_map *));
-  for (l = GL(dl_loaded), i = 0; l != NULL; l = l->l_next)
+  /* We run the destructors of the main namespaces last.  As for the
+     other namespaces, we pick run the destructors in them in reverse
+     order of the namespace ID.  */
+  for (Lmid_t cnt = DL_NNS - 1; cnt >= 0; --cnt)
     {
-      assert (i < nloaded);
+      /* Protect against concurrent loads and unloads.  */
+      __rtld_lock_lock_recursive (GL(dl_load_lock));
 
-      maps[i++] = l;
+      unsigned int nloaded = GL(dl_ns)[cnt]._ns_nloaded;
 
-      /* Bump l_opencount of all objects so that they are not dlclose()ed
-	 from underneath us.  */
-      ++l->l_opencount;
-    }
-  assert (i == nloaded);
+      /* XXX Could it be (in static binaries) that there is no object
+	 loaded?  */
+      assert (cnt != LM_ID_BASE || nloaded > 0);
 
-  /* Now we have to do the sorting.  */
-  for (l = GL(dl_loaded)->l_next; l != NULL; l = l->l_next)
-    {
-      unsigned int j;
-      unsigned int k;
-
-      /* Find the place in the 'maps' array.  */
-      for (j = 1; maps[j] != l; ++j)
-	;
-
-      /* Find all object for which the current one is a dependency and
-	 move the found object (if necessary) in front.  */
-      for (k = j + 1; k < nloaded; ++k)
+      /* Now we can allocate an array to hold all the pointers and copy
+	 the pointers in.  */
+      if (maps_size < nloaded * sizeof (struct link_map *))
 	{
-	  struct link_map **runp = maps[k]->l_initfini;
-	  if (runp != NULL)
+	  if (maps_size == 0)
 	    {
-	      while (*runp != NULL)
-		if (*runp == l)
+	      maps_size = nloaded * sizeof (struct link_map *);
+	      maps = (struct link_map **) alloca (maps_size);
+	    }
+	  else
+	    maps = (struct link_map **)
+	      extend_alloca (maps, maps_size,
+			     nloaded * sizeof (struct link_map *));
+	}
+
+      unsigned int i;
+      struct link_map *l;
+      for (l = GL(dl_ns)[cnt]._ns_loaded, i = 0; l != NULL; l = l->l_next)
+	/* Do not handle ld.so in secondary namespaces.  */
+	if (l == l->l_real)
+	  {
+	    assert (i < nloaded);
+
+	    maps[i++] = l;
+
+	    /* Bump l_opencount of all objects so that they are not
+	       dlclose()ed from underneath us.  */
+	    ++l->l_opencount;
+	  }
+      assert (cnt != LM_ID_BASE || i == nloaded);
+      assert (cnt == LM_ID_BASE || i == nloaded || i == nloaded - 1);
+      unsigned int nmaps = i;
+
+      if (nmaps != 0)
+	{
+	  /* Now we have to do the sorting.  */
+	  l = GL(dl_ns)[cnt]._ns_loaded;
+	  if (cnt == LM_ID_BASE)
+	    /* The main executable always comes first.  */
+	    l = l->l_next;
+	  for (; l != NULL; l = l->l_next)
+	    /* Do not handle ld.so in secondary namespaces.  */
+	    if (l == l->l_real)
+	      {
+		/* Find the place in the 'maps' array.  */
+		unsigned int j;
+		for (j = cnt == LM_ID_BASE ? 1 : 0; maps[j] != l; ++j)
+		  assert (j < nmaps);
+
+		/* Find all object for which the current one is a dependency
+		   and move the found object (if necessary) in front.  */
+		for (unsigned int k = j + 1; k < nmaps; ++k)
 		  {
-		    struct link_map *here = maps[k];
+		    struct link_map **runp = maps[k]->l_initfini;
+		    if (runp != NULL)
+		      {
+			while (*runp != NULL)
+			  if (*runp == l)
+			    {
+			      struct link_map *here = maps[k];
 
-		    /* Move it now.  */
-		    memmove (&maps[j] + 1,
-			     &maps[j],
-			     (k - j) * sizeof (struct link_map *));
-		    maps[j++] = here;
+			      /* Move it now.  */
+			      memmove (&maps[j] + 1,
+				       &maps[j],
+				       (k - j) * sizeof (struct link_map *));
+			      maps[j++] = here;
 
-		    break;
+			      break;
+			    }
+			  else
+			    ++runp;
+		      }
+
+		    if (__builtin_expect (maps[k]->l_reldeps != NULL, 0))
+		      {
+			unsigned int m = maps[k]->l_reldepsact;
+			struct link_map **relmaps = maps[k]->l_reldeps;
+
+			while (m-- > 0)
+			  {
+			    if (relmaps[m] == l)
+			      {
+				struct link_map *here = maps[k];
+
+				/* Move it now.  */
+				memmove (&maps[j] + 1,
+					 &maps[j],
+					 (k - j) * sizeof (struct link_map *));
+				maps[j] = here;
+
+				break;
+			      }
+			  }
+		      }
 		  }
-		else
-		  ++runp;
-	    }
-
-	  if (__builtin_expect (maps[k]->l_reldeps != NULL, 0))
-	    {
-	      unsigned int m = maps[k]->l_reldepsact;
-	      struct link_map **relmaps = maps[k]->l_reldeps;
-
-	      while (m-- > 0)
-		{
-		  if (relmaps[m] == l)
-		    {
-		      struct link_map *here = maps[k];
-
-		      /* Move it now.  */
-		      memmove (&maps[j] + 1,
-			       &maps[j],
-			       (k - j) * sizeof (struct link_map *));
-		      maps[j] = here;
-
-		      break;
-		    }
-		}
-	    }
+	      }
 	}
-    }
 
-  /* We do not rely on the linked list of loaded object anymore from
-     this point on.  We have our own list here (maps).  The various
-     members of this list cannot vanish since the open count is too
-     high and will be decremented in this loop.  So we release the
-     lock so that some code which might be called from a destructor
-     can directly or indirectly access the lock.  */
-  __rtld_lock_unlock_recursive (GL(dl_load_lock));
+      /* We do not rely on the linked list of loaded object anymore from
+	 this point on.  We have our own list here (maps).  The various
+	 members of this list cannot vanish since the open count is too
+	 high and will be decremented in this loop.  So we release the
+	 lock so that some code which might be called from a destructor
+	 can directly or indirectly access the lock.  */
+      __rtld_lock_unlock_recursive (GL(dl_load_lock));
 
-  /* 'maps' now contains the objects in the right order.  Now call the
-     destructors.  We have to process this array from the front.  */
-  for (i = 0; i < nloaded; ++i)
-    {
-      l = maps[i];
-
-      if (l->l_init_called)
+      /* 'maps' now contains the objects in the right order.  Now call the
+	 destructors.  We have to process this array from the front.  */
+      for (i = 0; i < nmaps; ++i)
 	{
-	  /* Make sure nothing happens if we are called twice.  */
-	  l->l_init_called = 0;
+	  l = maps[i];
 
-	  /* Don't call the destructors for objects we are not supposed to.  */
-	  if (l->l_name[0] == '\0' && l->l_type == lt_executable)
-	    continue;
-
-	  /* Is there a destructor function?  */
-	  if (l->l_info[DT_FINI_ARRAY] == NULL && l->l_info[DT_FINI] == NULL)
-	    continue;
-
-	  /* When debugging print a message first.  */
-	  if (__builtin_expect (GLRO(dl_debug_mask) & DL_DEBUG_IMPCALLS, 0))
-	    _dl_debug_printf ("\ncalling fini: %s\n\n",
-			      l->l_name[0] ? l->l_name : rtld_progname);
-
-	  /* First see whether an array is given.  */
-	  if (l->l_info[DT_FINI_ARRAY] != NULL)
+	  if (l->l_init_called)
 	    {
-	      ElfW(Addr) *array =
-		(ElfW(Addr) *) (l->l_addr
-				+ l->l_info[DT_FINI_ARRAY]->d_un.d_ptr);
-	      unsigned int i = (l->l_info[DT_FINI_ARRAYSZ]->d_un.d_val
-				/ sizeof (ElfW(Addr)));
-	      while (i-- > 0)
-		((fini_t) array[i]) ();
+	      /* Make sure nothing happens if we are called twice.  */
+	      l->l_init_called = 0;
+
+	      /* Don't call the destructors for objects we are not
+		 supposed to.  */
+	      if (l->l_name[0] == '\0' && l->l_type == lt_executable)
+		continue;
+
+	      /* Is there a destructor function?  */
+	      if (l->l_info[DT_FINI_ARRAY] == NULL
+		  && l->l_info[DT_FINI] == NULL)
+		continue;
+
+	      /* When debugging print a message first.  */
+	      if (__builtin_expect (GLRO(dl_debug_mask) & DL_DEBUG_IMPCALLS,
+				    0))
+		_dl_debug_printf ("\ncalling fini: %s [%lu]\n\n",
+				  l->l_name[0] ? l->l_name : rtld_progname,
+				  cnt);
+
+	      /* First see whether an array is given.  */
+	      if (l->l_info[DT_FINI_ARRAY] != NULL)
+		{
+		  ElfW(Addr) *array =
+		    (ElfW(Addr) *) (l->l_addr
+				    + l->l_info[DT_FINI_ARRAY]->d_un.d_ptr);
+		  unsigned int i = (l->l_info[DT_FINI_ARRAYSZ]->d_un.d_val
+				    / sizeof (ElfW(Addr)));
+		  while (i-- > 0)
+		    ((fini_t) array[i]) ();
+		}
+
+	      /* Next try the old-style destructor.  */
+	      if (l->l_info[DT_FINI] != NULL)
+		((fini_t) DL_DT_FINI_ADDRESS (l, l->l_addr + l->l_info[DT_FINI]->d_un.d_ptr)) ();
 	    }
 
-	  /* Next try the old-style destructor.  */
-	  if (l->l_info[DT_FINI] != NULL)
-	    ((fini_t) DL_DT_FINI_ADDRESS (l, l->l_addr + l->l_info[DT_FINI]->d_un.d_ptr)) ();
+	  /* Correct the previous increment.  */
+	  --l->l_opencount;
 	}
-
-      /* Correct the previous increment.  */
-      --l->l_opencount;
     }
 
   if (__builtin_expect (GLRO(dl_debug_mask) & DL_DEBUG_STATISTICS, 0))

elf/dl-iteratephdr.c

@@ -42,14 +42,32 @@ __dl_iterate_phdr (int (*callback) (struct dl_phdr_info *info,
   __rtld_lock_lock_recursive (GL(dl_load_lock));
   __libc_cleanup_push (cancel_handler, 0);
 
-  for (l = GL(dl_loaded); l != NULL; l = l->l_next)
+  /* We have to determine the namespace of the caller since this determines
+     which namespace is reported.  */
+  const void *caller = RETURN_ADDRESS (0);
+  size_t nloaded = GL(dl_ns)[0]._ns_nloaded;
+  Lmid_t ns = 0;
+  for (Lmid_t cnt = DL_NNS - 1; cnt > 0; --cnt)
+    for (struct link_map *l = GL(dl_ns)[cnt]._ns_loaded; l; l = l->l_next)
+      {
+	/* We have to count the total number of loaded objects.  */
+	nloaded += GL(dl_ns)[cnt]._ns_nloaded;
+
+	if (caller >= (const void *) l->l_map_start
+	    && caller < (const void *) l->l_map_end)
+	  /* There must be exactly one DSO for the range of the virtual
+	     memory.  Otherwise something is really broken.  */
+	  ns = cnt;
+      }
+
+  for (l = GL(dl_ns)[ns]._ns_loaded; l != NULL; l = l->l_next)
     {
       info.dlpi_addr = l->l_addr;
       info.dlpi_name = l->l_name;
       info.dlpi_phdr = l->l_phdr;
       info.dlpi_phnum = l->l_phnum;
       info.dlpi_adds = GL(dl_load_adds);
-      info.dlpi_subs = GL(dl_load_adds) - GL(dl_nloaded);
+      info.dlpi_subs = GL(dl_load_adds) - nloaded;
       ret = callback (&info, sizeof (struct dl_phdr_info), data);
       if (ret)
 	break;
@@ -87,7 +105,7 @@ dl_iterate_phdr (int (*callback) (struct dl_phdr_info *info,
       info.dlpi_phdr = _dl_phdr;
       info.dlpi_phnum = _dl_phnum;
       info.dlpi_adds = GL(dl_load_adds);
-      info.dlpi_subs = GL(dl_load_adds) - GL(dl_nloaded);
+      info.dlpi_subs = GL(dl_load_adds) - GL(dl_ns)[LM_ID_BASE]._ns_nloaded;
       ret = (*callback) (&info, sizeof (struct dl_phdr_info), data);
       if (ret)
 	return ret;

elf/dl-libc.c

@@ -77,7 +77,7 @@ do_dlopen (void *ptr)
 {
   struct do_dlopen_args *args = (struct do_dlopen_args *) ptr;
   /* Open and relocate the shared object.  */
-  args->map = _dl_open (args->name, args->mode, NULL);
+  args->map = _dl_open (args->name, args->mode, NULL, __LM_ID_CALLER);
 }
 
 static void
@@ -121,7 +121,6 @@ do_dlsym_private (void *ptr)
   vers.hidden = 1;
   /* vers.hash = _dl_elf_hash (version);  */
   vers.hash = 0x0963cf85;
-  /* FIXME: Shouldn't we use libc.so.6* here?  */
   vers.filename = NULL;
 
   struct do_dlsym_args *args = (struct do_dlsym_args *) ptr;
@@ -156,24 +155,37 @@ __libc_dlopen_mode (const char *name, int mode)
   if (dlerror_run (do_dlopen, &args))
     return NULL;
 
-  struct do_dlsym_args sargs;
-  sargs.map = args.map;
-  sargs.name = "_dl_open_hook";
-
-  if (! dlerror_run (do_dlsym_private, &sargs))
-    {
-      struct dl_open_hook **hook
-	= (struct dl_open_hook **)
-	  (DL_SYMBOL_ADDRESS (sargs.loadbase, sargs.ref));
-      if (hook != NULL)
-	*hook = &_dl_open_hook;
-    }
-
+  __libc_register_dl_open_hook (args.map);
+  __libc_register_dlfcn_hook (args.map);
   return (void *) args.map;
 #endif
 }
 libc_hidden_def (__libc_dlopen_mode)
 
+#ifndef SHARED
+void *
+__libc_dlsym_private (struct link_map *map, const char *name)
+{
+  struct do_dlsym_args sargs;
+  sargs.map = map;
+  sargs.name = name;
+
+  if (! dlerror_run (do_dlsym_private, &sargs))
+    return DL_SYMBOL_ADDRESS (sargs.loadbase, sargs.ref);
+  return NULL;
+}
+
+void
+__libc_register_dl_open_hook (struct link_map *map)
+{
+  struct dl_open_hook **hook;
+
+  hook = (struct dl_open_hook **) __libc_dlsym_private (map, "_dl_open_hook");
+  if (hook != NULL)
+    *hook = &_dl_open_hook;
+}
+#endif
+
 void *
 __libc_dlsym (void *map, const char *name)
 {
@@ -217,18 +229,19 @@ libc_freeres_fn (free_mem)
     }
 
   /* Remove all additional names added to the objects.  */
-  for (l = GL(dl_loaded); l != NULL; l = l->l_next)
-    {
-      struct libname_list *lnp = l->l_libname->next;
+  for (Lmid_t ns = 0; ns < DL_NNS; ++ns)
+    for (l = GL(dl_ns)[ns]._ns_loaded; l != NULL; l = l->l_next)
+      {
+	struct libname_list *lnp = l->l_libname->next;
 
-      l->l_libname->next = NULL;
+	l->l_libname->next = NULL;
 
-      while (lnp != NULL)
-	{
-	  struct libname_list *old = lnp;
-	  lnp = lnp->next;
-	  if (! old->dont_free)
+	while (lnp != NULL)
+	  {
+	    struct libname_list *old = lnp;
+	    lnp = lnp->next;
+	    if (! old->dont_free)
 	    free (old);
-	}
-    }
+	  }
+      }
 }

elf/dl-load.c

@@ -699,7 +699,7 @@ _dl_init_paths (const char *llp)
 
 #ifdef SHARED
   /* This points to the map of the main object.  */
-  l = GL(dl_loaded);
+  l = GL(dl_ns)[LM_ID_BASE]._ns_loaded;
   if (l != NULL)
     {
       assert (l->l_type != lt_loaded);
@@ -795,10 +795,10 @@ lose (int code, int fd, const char *name, char *realname, struct link_map *l,
       if (l->l_prev == NULL)
 	/* No other module loaded. This happens only in the static library,
 	   or in rtld under --verify.  */
-	GL(dl_loaded) = NULL;
+	GL(dl_ns)[l->l_ns]._ns_loaded = NULL;
       else
 	l->l_prev->l_next = NULL;
-      --GL(dl_nloaded);
+      --GL(dl_ns)[l->l_ns]._ns_nloaded;
       free (l);
     }
   free (realname);
@@ -815,7 +815,7 @@ static
 struct link_map *
 _dl_map_object_from_fd (const char *name, int fd, struct filebuf *fbp,
 			char *realname, struct link_map *loader, int l_type,
-			int mode, void **stack_endp)
+			int mode, void **stack_endp, Lmid_t nsid)
 {
   struct link_map *l = NULL;
   const ElfW(Ehdr) *header;
@@ -839,7 +839,7 @@ _dl_map_object_from_fd (const char *name, int fd, struct filebuf *fbp,
     }
 
   /* Look again to see if the real name matched another already loaded.  */
-  for (l = GL(dl_loaded); l; l = l->l_next)
+  for (l = GL(dl_ns)[nsid]._ns_loaded; l; l = l->l_next)
     if (l->l_ino == st.st_ino && l->l_dev == st.st_dev)
       {
 	/* The object is already loaded.
@@ -854,6 +854,31 @@ _dl_map_object_from_fd (const char *name, int fd, struct filebuf *fbp,
 	return l;
       }
 
+#ifdef SHARED
+  /* When loading into a namespace other than the base one we must
+     avoid loading ld.so since there can only be one copy.  Ever.  */
+  if (__builtin_expect (nsid != LM_ID_BASE, 0)
+      && ((st.st_ino == GL(dl_rtld_map).l_ino
+	   && st.st_dev == GL(dl_rtld_map).l_dev)
+	  || _dl_name_match_p (name, &GL(dl_rtld_map))))
+    {
+      /* This is indeed ld.so.  Create a new link_map which refers to
+	 the real one for almost everything.  */
+      l = _dl_new_object (realname, name, l_type, loader, mode, nsid);
+      if (l == NULL)
+	goto fail_new;
+
+      /* Refer to the real descriptor.  */
+      l->l_real = &GL(dl_rtld_map);
+
+      /* No need to bump the refcount of the real object, ld.so will
+	 never be unloaded.  */
+      __close (fd);
+
+      return l;
+    }
+#endif
+
   if (mode & RTLD_NOLOAD)
     /* We are not supposed to load the object unless it is already
        loaded.  So return now.  */
@@ -861,7 +886,7 @@ _dl_map_object_from_fd (const char *name, int fd, struct filebuf *fbp,
 
   /* Print debugging message.  */
   if (__builtin_expect (GLRO(dl_debug_mask) & DL_DEBUG_FILES, 0))
-    _dl_debug_printf ("file=%s;  generating link map\n", name);
+    _dl_debug_printf ("file=%s [%lu];  generating link map\n", name, nsid);
 
   /* This is the ELF header.  We read it in `open_verify'.  */
   header = (void *) fbp->buf;
@@ -881,9 +906,12 @@ _dl_map_object_from_fd (const char *name, int fd, struct filebuf *fbp,
 #endif
 
   /* Enter the new object in the list of loaded objects.  */
-  l = _dl_new_object (realname, name, l_type, loader);
-  if (__builtin_expect (! l, 0))
+  l = _dl_new_object (realname, name, l_type, loader, mode, nsid);
+  if (__builtin_expect (l == NULL, 0))
     {
+#ifdef SHARED
+    fail_new:
+#endif
       errstring = N_("cannot create shared object descriptor");
       goto call_lose_errno;
     }
@@ -959,12 +987,12 @@ _dl_map_object_from_fd (const char *name, int fd, struct filebuf *fbp,
 	    }
 
 	  c = &loadcmds[nloadcmds++];
-	  c->mapstart = ph->p_vaddr & ~(ph->p_align - 1);
+	  c->mapstart = ph->p_vaddr & ~(GLRO(dl_pagesize) - 1);
 	  c->mapend = ((ph->p_vaddr + ph->p_filesz + GLRO(dl_pagesize) - 1)
 		       & ~(GLRO(dl_pagesize) - 1));
 	  c->dataend = ph->p_vaddr + ph->p_filesz;
 	  c->allocend = ph->p_vaddr + ph->p_memsz;
-	  c->mapoff = ph->p_offset & ~(ph->p_align - 1);
+	  c->mapoff = ph->p_offset & ~(GLRO(dl_pagesize) - 1);
 
 	  /* Determine whether there is a gap between the last segment
 	     and this one.  */
@@ -1355,15 +1383,12 @@ cannot enable executable stack as shared object requires");
 
   /* If this object has DT_SYMBOLIC set modify now its scope.  We don't
      have to do this for the main map.  */
-  if (__builtin_expect (l->l_info[DT_SYMBOLIC] != NULL, 0)
+  if ((mode & RTLD_DEEPBIND) == 0
+      && __builtin_expect (l->l_info[DT_SYMBOLIC] != NULL, 0)
       && &l->l_searchlist != l->l_scope[0])
     {
       /* Create an appropriate searchlist.  It contains only this map.
-
-	 XXX This is the definition of DT_SYMBOLIC in SysVr4.  The old
-	 GNU ld.so implementation had a different interpretation which
-	 is more reasonable.  We are prepared to add this possibility
-	 back as part of a GNU extension of the ELF format.  */
+	 This is the definition of DT_SYMBOLIC in SysVr4.  */
       l->l_symbolic_searchlist.r_list =
 	(struct link_map **) malloc (sizeof (struct link_map *));
 
@@ -1774,7 +1799,7 @@ open_path (const char *name, size_t namelen, int preloaded,
 struct link_map *
 internal_function
 _dl_map_object (struct link_map *loader, const char *name, int preloaded,
-		int type, int trace_mode, int mode)
+		int type, int trace_mode, int mode, Lmid_t nsid)
 {
   int fd;
   char *realname;
@@ -1782,8 +1807,11 @@ _dl_map_object (struct link_map *loader, const char *name, int preloaded,
   struct link_map *l;
   struct filebuf fb;
 
+  assert (nsid >= 0);
+  assert (nsid < DL_NNS);
+
   /* Look for this name among those already loaded.  */
-  for (l = GL(dl_loaded); l; l = l->l_next)
+  for (l = GL(dl_ns)[nsid]._ns_loaded; l; l = l->l_next)
     {
       /* If the requested name matches the soname of a loaded object,
 	 use that object.  Elide this check for names that have not
@@ -1815,9 +1843,9 @@ _dl_map_object (struct link_map *loader, const char *name, int preloaded,
   /* Display information if we are debugging.  */
   if (__builtin_expect (GLRO(dl_debug_mask) & DL_DEBUG_FILES, 0)
       && loader != NULL)
-    _dl_debug_printf ("\nfile=%s;  needed by %s\n", name,
+    _dl_debug_printf ("\nfile=%s [%lu];  needed by %s [%lu]\n", name, nsid,
 			      loader->l_name[0]
-			      ? loader->l_name : rtld_progname);
+			      ? loader->l_name : rtld_progname, loader->l_ns);
 
   if (strchr (name, '/') == NULL)
     {
@@ -1826,7 +1854,7 @@ _dl_map_object (struct link_map *loader, const char *name, int preloaded,
       size_t namelen = strlen (name) + 1;
 
       if (__builtin_expect (GLRO(dl_debug_mask) & DL_DEBUG_LIBS, 0))
-	_dl_debug_printf ("find library=%s; searching\n", name);
+	_dl_debug_printf ("find library=%s [%lu]; searching\n", name, nsid);
 
       fd = -1;
 
@@ -1842,12 +1870,15 @@ _dl_map_object (struct link_map *loader, const char *name, int preloaded,
 			      &realname, &fb);
 
 	  /* If dynamically linked, try the DT_RPATH of the executable
-             itself.  */
-	  l = GL(dl_loaded);
-	  if (fd == -1 && l && l->l_type != lt_loaded && l != loader
-	      && l->l_rpath_dirs.dirs != (void *) -1)
-	    fd = open_path (name, namelen, preloaded, &l->l_rpath_dirs,
-			    &realname, &fb);
+             itself.  NB: we do this for lookups in any namespace.  */
+	  if (fd == -1)
+	    {
+	      l = GL(dl_ns)[LM_ID_BASE]._ns_loaded;
+	      if (l && l->l_type != lt_loaded && l != loader
+		  && cache_rpath (l, &l->l_rpath_dirs, DT_RPATH, "RPATH"))
+		fd = open_path (name, namelen, preloaded, &l->l_rpath_dirs,
+				&realname, &fb);
+	    }
 	}
 
       /* Try the LD_LIBRARY_PATH environment variable.  */
@@ -1873,7 +1904,8 @@ _dl_map_object (struct link_map *loader, const char *name, int preloaded,
 	  if (cached != NULL)
 	    {
 #ifdef SHARED
-	      l = loader ?: GL(dl_loaded);
+	      // XXX Correct to unconditionally default to namespace 0?
+	      l = loader ?: GL(dl_ns)[LM_ID_BASE]._ns_loaded;
 #else
 	      l = loader;
 #endif
@@ -1923,7 +1955,7 @@ _dl_map_object (struct link_map *loader, const char *name, int preloaded,
 
       /* Finally, try the default path.  */
       if (fd == -1
-	  && ((l = loader ?: GL(dl_loaded)) == NULL
+	  && ((l = loader ?: GL(dl_ns)[nsid]._ns_loaded) == NULL
 	      || __builtin_expect (!(l->l_flags_1 & DF_1_NODEFLIB), 1))
 	  && rtld_search_dirs.dirs != (void *) -1)
 	fd = open_path (name, namelen, preloaded, &rtld_search_dirs,
@@ -1968,7 +2000,8 @@ _dl_map_object (struct link_map *loader, const char *name, int preloaded,
 
 	  /* Enter the new object in the list of loaded objects.  */
 	  if ((name_copy = local_strdup (name)) == NULL
-	      || (l = _dl_new_object (name_copy, name, type, loader)) == NULL)
+	      || (l = _dl_new_object (name_copy, name, type, loader,
+				      mode, nsid)) == NULL)
 	    _dl_signal_error (ENOMEM, name, NULL,
 			      N_("cannot create shared object descriptor"));
 	  /* Signal that this is a faked entry.  */
@@ -1989,7 +2022,7 @@ _dl_map_object (struct link_map *loader, const char *name, int preloaded,
 
   void *stack_end = __libc_stack_end;
   return _dl_map_object_from_fd (name, fd, &fb, realname, loader, type, mode,
-				 &stack_end);
+				 &stack_end, nsid);
 }
 
 
@@ -2049,10 +2082,13 @@ _dl_rtld_di_serinfo (struct link_map *loader, Dl_serinfo *si, bool counting)
       while (l != NULL);
 
       /* If dynamically linked, try the DT_RPATH of the executable itself.  */
-      l = GL(dl_loaded);
-      if (l != NULL && l->l_type != lt_loaded && l != loader)
-	if (cache_rpath (l, &l->l_rpath_dirs, DT_RPATH, "RPATH"))
-	  add_path (&l->l_rpath_dirs, XXX_RPATH);
+      if (loader->l_ns == LM_ID_BASE)
+	{
+	  l = GL(dl_ns)[LM_ID_BASE]._ns_loaded;
+	  if (l != NULL && l->l_type != lt_loaded && l != loader)
+	    if (cache_rpath (l, &l->l_rpath_dirs, DT_RPATH, "RPATH"))
+	      add_path (&l->l_rpath_dirs, XXX_RPATH);
+	}
     }
 
   /* Try the LD_LIBRARY_PATH environment variable.  */

elf/dl-lookup.c

@@ -137,7 +137,7 @@ add_dependency (struct link_map *undef_map, struct link_map *map)
      reference is still available.  There is a brief period in
      which the object could have been removed since we found the
      definition.  */
-  runp = GL(dl_loaded);
+  runp = GL(dl_ns)[undef_map->l_ns]._ns_loaded;
   while (runp != NULL && runp != map)
     runp = runp->l_next;
 
@@ -182,13 +182,18 @@ add_dependency (struct link_map *undef_map, struct link_map *map)
 	for (list = map->l_initfini; *list != NULL; ++list)
 	  ++(*list)->l_opencount;
 
+      /* As if it is opened through _dl_open.  */
+      ++map->l_direct_opencount;
+
       /* Display information if we are debugging.  */
       if (__builtin_expect (GLRO(dl_debug_mask) & DL_DEBUG_FILES, 0))
 	_dl_debug_printf ("\
-\nfile=%s;  needed by %s (relocation dependency)\n\n",
+\nfile=%s [%lu];  needed by %s [%lu] (relocation dependency)\n\n",
 			  map->l_name[0] ? map->l_name : rtld_progname,
+			  map->l_ns,
 			  undef_map->l_name[0]
-			  ? undef_map->l_name : rtld_progname);
+			  ? undef_map->l_name : rtld_progname,
+			  undef_map->l_ns);
     }
   else
     /* Whoa, that was bad luck.  We have to search again.  */
@@ -408,8 +413,8 @@ _dl_debug_bindings (const char *undef_name, struct link_map *undef_map,
       struct sym_val val = { NULL, NULL };
 
       if ((GLRO(dl_trace_prelink_map) == NULL
-	   || GLRO(dl_trace_prelink_map) == GL(dl_loaded))
-	  && undef_map != GL(dl_loaded))
+	   || GLRO(dl_trace_prelink_map) == GL(dl_ns)[LM_ID_BASE]._ns_loaded)
+	  && undef_map != GL(dl_ns)[LM_ID_BASE]._ns_loaded)
 	{
 	  const unsigned long int hash = _dl_elf_hash (undef_name);
 
@@ -421,12 +426,12 @@ _dl_debug_bindings (const char *undef_name, struct link_map *undef_map,
 	    conflict = 1;
 	}
 
-#ifdef USE_TLS
+# ifdef USE_TLS
       if (value->s
 	  && (__builtin_expect (ELFW(ST_TYPE) (value->s->st_info)
 				== STT_TLS, 0)))
 	type_class = 4;
-#endif
+# endif
 
       if (conflict
 	  || GLRO(dl_trace_prelink_map) == undef_map

elf/dl-minimal.c

@@ -354,6 +354,13 @@ __strsep (char **stringp, const char *delim)
 weak_alias (__strsep, strsep)
 strong_alias (__strsep, __strsep_g)
 
+void
+__attribute__ ((noreturn))
+__chk_fail (void)
+{
+  _exit (127);
+}
+rtld_hidden_def (__chk_fail)
 
 /* The '_itoa_lower_digits' variable in libc.so is able to handle bases
    up to 36.  We don't need this here.  */

elf/dl-object.c

@@ -32,7 +32,7 @@
 struct link_map *
 internal_function
 _dl_new_object (char *realname, const char *libname, int type,
-		struct link_map *loader)
+		struct link_map *loader, int mode, Lmid_t nsid)
 {
   struct link_map *l;
   int idx;
@@ -45,6 +45,7 @@ _dl_new_object (char *realname, const char *libname, int type,
   if (new == NULL)
     return NULL;
 
+  new->l_real = new;
   new->l_libname = newname = (struct libname_list *) (new + 1);
   newname->name = (char *) memcpy (newname + 1, libname, libname_len);
   /* newname->next = NULL;	We use calloc therefore not necessary.  */
@@ -56,6 +57,7 @@ _dl_new_object (char *realname, const char *libname, int type,
 #if defined USE_TLS && NO_TLS_OFFSET != 0
   new->l_tls_offset = NO_TLS_OFFSET;
 #endif
+  new->l_ns = nsid;
 
   /* new->l_global = 0;	We use calloc therefore not necessary.  */
 
@@ -68,9 +70,9 @@ _dl_new_object (char *realname, const char *libname, int type,
   /* Counter for the scopes we have to handle.  */
   idx = 0;
 
-  if (GL(dl_loaded) != NULL)
+  if (GL(dl_ns)[nsid]._ns_loaded != NULL)
     {
-      l = GL(dl_loaded);
+      l = GL(dl_ns)[nsid]._ns_loaded;
       while (l->l_next != NULL)
 	l = l->l_next;
       new->l_prev = l;
@@ -78,11 +80,11 @@ _dl_new_object (char *realname, const char *libname, int type,
       l->l_next = new;
 
       /* Add the global scope.  */
-      new->l_scope[idx++] = &GL(dl_loaded)->l_searchlist;
+      new->l_scope[idx++] = &GL(dl_ns)[nsid]._ns_loaded->l_searchlist;
     }
   else
-    GL(dl_loaded) = new;
-  ++GL(dl_nloaded);
+    GL(dl_ns)[nsid]._ns_loaded = new;
+  ++GL(dl_ns)[nsid]._ns_nloaded;
   ++GL(dl_load_adds);
 
   /* If we have no loader the new object acts as it.  */
@@ -95,7 +97,15 @@ _dl_new_object (char *realname, const char *libname, int type,
 
   /* Insert the scope if it isn't the global scope we already added.  */
   if (idx == 0 || &loader->l_searchlist != new->l_scope[0])
-    new->l_scope[idx] = &loader->l_searchlist;
+    {
+      if ((mode & RTLD_DEEPBIND) != 0 && idx != 0)
+	{
+	  new->l_scope[1] = new->l_scope[0];
+	  idx = 0;
+	}
+
+      new->l_scope[idx] = &loader->l_searchlist;
+    }
 
   new->l_local_scope[0] = &new->l_searchlist;
 

elf/dl-open.c

@@ -72,6 +72,8 @@ struct dl_open_args
   /* This is the caller if _dl_open().  */
   const void *caller_dl_open;
   struct link_map *map;
+  /* Namespace ID.  */
+  Lmid_t nsid;
 };
 
 
@@ -101,15 +103,17 @@ add_to_global (struct link_map *new)
      in an realloc() call.  Therefore we allocate a completely new
      array the first time we have to add something to the locale scope.  */
 
-  if (GL(dl_global_scope_alloc) == 0)
+  if (GL(dl_ns)[new->l_ns]._ns_global_scope_alloc == 0)
     {
       /* This is the first dynamic object given global scope.  */
-      GL(dl_global_scope_alloc) = GL(dl_main_searchlist)->r_nlist + to_add + 8;
+      GL(dl_ns)[new->l_ns]._ns_global_scope_alloc
+	= GL(dl_ns)[new->l_ns]._ns_main_searchlist->r_nlist + to_add + 8;
       new_global = (struct link_map **)
-	malloc (GL(dl_global_scope_alloc) * sizeof (struct link_map *));
+	malloc (GL(dl_ns)[new->l_ns]._ns_global_scope_alloc
+		* sizeof (struct link_map *));
       if (new_global == NULL)
 	{
-	  GL(dl_global_scope_alloc) = 0;
+	  GL(dl_ns)[new->l_ns]._ns_global_scope_alloc = 0;
 	nomem:
 	  GLRO(dl_signal_error) (ENOMEM, new->l_libname->name, NULL,
 				 N_("cannot extend global scope"));
@@ -117,25 +121,26 @@ add_to_global (struct link_map *new)
 	}
 
       /* Copy over the old entries.  */
-      memcpy (new_global, GL(dl_main_searchlist)->r_list,
-	      (GL(dl_main_searchlist)->r_nlist * sizeof (struct link_map *)));
-
-      GL(dl_main_searchlist)->r_list = new_global;
+      GL(dl_ns)[new->l_ns]._ns_main_searchlist->r_list
+	= memcpy (new_global,
+		  GL(dl_ns)[new->l_ns]._ns_main_searchlist->r_list,
+		  (GL(dl_ns)[new->l_ns]._ns_main_searchlist->r_nlist
+		   * sizeof (struct link_map *)));
     }
-  else if (GL(dl_main_searchlist)->r_nlist + to_add
-	   > GL(dl_global_scope_alloc))
+  else if (GL(dl_ns)[new->l_ns]._ns_main_searchlist->r_nlist + to_add
+	   > GL(dl_ns)[new->l_ns]._ns_global_scope_alloc)
     {
       /* We have to extend the existing array of link maps in the
 	 main map.  */
       new_global = (struct link_map **)
-	realloc (GL(dl_main_searchlist)->r_list,
-		 ((GL(dl_global_scope_alloc) + to_add + 8)
+	realloc (GL(dl_ns)[new->l_ns]._ns_main_searchlist->r_list,
+		 ((GL(dl_ns)[new->l_ns]._ns_global_scope_alloc + to_add + 8)
 		  * sizeof (struct link_map *)));
       if (new_global == NULL)
 	goto nomem;
 
-      GL(dl_global_scope_alloc) += to_add + 8;
-      GL(dl_main_searchlist)->r_list = new_global;
+      GL(dl_ns)[new->l_ns]._ns_global_scope_alloc += to_add + 8;
+      GL(dl_ns)[new->l_ns]._ns_main_searchlist->r_list = new_global;
     }
 
   /* Now add the new entries.  */
@@ -146,9 +151,9 @@ add_to_global (struct link_map *new)
       if (map->l_global == 0)
 	{
 	  map->l_global = 1;
-	  GL(dl_main_searchlist)->r_list[GL(dl_main_searchlist)->r_nlist]
+	  GL(dl_ns)[new->l_ns]._ns_main_searchlist->r_list[GL(dl_ns)[new->l_ns]._ns_main_searchlist->r_nlist]
 	    = map;
-	  ++GL(dl_main_searchlist)->r_nlist;
+	  ++GL(dl_ns)[new->l_ns]._ns_main_searchlist->r_nlist;
 	}
     }
 
@@ -175,28 +180,42 @@ dl_open_worker (void *a)
     GLRO(dl_signal_error) (0, "dlopen", NULL, N_("invalid caller"));
 
   /* Determine the caller's map if necessary.  This is needed in case
-     we have a DST or when the file name has no path in which case we
-     need to look along the RUNPATH/RPATH of the caller.  */
+     we have a DST, when we don't know the namespace ID we have to put
+     the new object in, or when the file name has no path in which
+     case we need to look along the RUNPATH/RPATH of the caller.  */
   const char *dst = strchr (file, '$');
-  if (dst != NULL || strchr (file, '/') == NULL)
+  if (dst != NULL || args->nsid == __LM_ID_CALLER
+      || strchr (file, '/') == NULL)
     {
       const void *caller_dlopen = args->caller_dlopen;
 
-      /* We have to find out from which object the caller is calling.  */
-      call_map = NULL;
-      for (l = GL(dl_loaded); l; l = l->l_next)
-	if (caller_dlopen >= (const void *) l->l_map_start
-	    && caller_dlopen < (const void *) l->l_map_end)
-	  {
-	    /* There must be exactly one DSO for the range of the virtual
-	       memory.  Otherwise something is really broken.  */
-	    call_map = l;
-	    break;
-	  }
+      /* We have to find out from which object the caller is calling.
+	 By default we assume this is the main application.  */
+      call_map = GL(dl_ns)[LM_ID_BASE]._ns_loaded;
 
-      if (call_map == NULL)
-	/* In this case we assume this is the main application.  */
-	call_map = GL(dl_loaded);
+      for (Lmid_t ns = 0; ns < DL_NNS; ++ns)
+	for (l = GL(dl_ns)[ns]._ns_loaded; l != NULL; l = l->l_next)
+	  if (caller_dlopen >= (const void *) l->l_map_start
+	      && caller_dlopen < (const void *) l->l_map_end)
+	    {
+	      /* There must be exactly one DSO for the range of the virtual
+		 memory.  Otherwise something is really broken.  */
+	      assert (ns == l->l_ns);
+	      call_map = l;
+	      goto found_caller;
+	    }
+
+    found_caller:
+      if (args->nsid == __LM_ID_CALLER)
+	{
+#ifndef SHARED
+	  /* In statically linked apps there might be no loaded object.  */
+	  if (call_map == NULL)
+	    args->nsid = LM_ID_BASE;
+	  else
+#endif
+	    args->nsid = call_map->l_ns;
+	}
     }
 
   /* Maybe we have to expand a DST.  */
@@ -238,7 +257,7 @@ dl_open_worker (void *a)
 
   /* Load the named object.  */
   args->map = new = GLRO(dl_map_object) (call_map, file, 0, lt_loaded, 0,
-					 mode | __RTLD_CALLMAP);
+					 mode | __RTLD_CALLMAP, args->nsid);
 
   /* If the pointer returned is NULL this means the RTLD_NOLOAD flag is
      set and the object is not already loaded.  */
@@ -252,32 +271,43 @@ dl_open_worker (void *a)
     /* This happens only if we load a DSO for 'sprof'.  */
     return;
 
+  /* This object is directly loaded.  */
+  ++new->l_direct_opencount;
+
   /* It was already open.  */
   if (__builtin_expect (new->l_searchlist.r_list != NULL, 0))
     {
       /* Let the user know about the opencount.  */
       if (__builtin_expect (GLRO(dl_debug_mask) & DL_DEBUG_FILES, 0))
-	GLRO(dl_debug_printf) ("opening file=%s; opencount == %u\n\n",
-			       new->l_name, new->l_opencount);
+	GLRO(dl_debug_printf) ("opening file=%s [%lu]; opencount=%u\n\n",
+			       new->l_name, new->l_ns, new->l_opencount);
 
       /* If the user requested the object to be in the global namespace
 	 but it is not so far, add it now.  */
       if ((mode & RTLD_GLOBAL) && new->l_global == 0)
 	(void) add_to_global (new);
 
-      /* Increment just the reference counter of the object.  */
-      ++new->l_opencount;
+      if (new->l_direct_opencount == 1)
+	/* This is the only direct reference.  Increment all the
+	   dependencies' reference counter.  */
+	for (i = 0; i < new->l_searchlist.r_nlist; ++i)
+	  ++new->l_searchlist.r_list[i]->l_opencount;
+      else
+	/* Increment just the reference counter of the object.  */
+	++new->l_opencount;
 
       return;
     }
 
   /* Load that object's dependencies.  */
-  GLRO(dl_map_object_deps) (new, NULL, 0, 0, mode & __RTLD_DLOPEN);
+  GLRO(dl_map_object_deps) (new, NULL, 0, 0,
+			    mode & (__RTLD_DLOPEN | RTLD_DEEPBIND));
 
   /* So far, so good.  Now check the versions.  */
   for (i = 0; i < new->l_searchlist.r_nlist; ++i)
-    if (new->l_searchlist.r_list[i]->l_versions == NULL)
-      (void) GLRO(dl_check_map_versions) (new->l_searchlist.r_list[i], 0, 0);
+    if (new->l_searchlist.r_list[i]->l_real->l_versions == NULL)
+      (void) GLRO(dl_check_map_versions) (new->l_searchlist.r_list[i]->l_real,
+					  0, 0);
 
 #ifdef SCOPE_DEBUG
   show_scope (new);
@@ -294,7 +324,7 @@ dl_open_worker (void *a)
     l = l->l_next;
   while (1)
     {
-      if (! l->l_relocated)
+      if (! l->l_real->l_relocated)
 	{
 #ifdef SHARED
 	  if (GLRO(dl_profile) != NULL)
@@ -348,7 +378,7 @@ dl_open_worker (void *a)
      loaded object to the scope.  */
   for (i = 0; i < new->l_searchlist.r_nlist; ++i)
     if (++new->l_searchlist.r_list[i]->l_opencount > 1
-	&& new->l_searchlist.r_list[i]->l_type == lt_loaded)
+	&& new->l_real->l_searchlist.r_list[i]->l_type == lt_loaded)
       {
 	struct link_map *imap = new->l_searchlist.r_list[i];
 	struct r_scope_elem **runp = imap->l_scope;
@@ -476,7 +506,7 @@ cannot create TLS data structures"));
   /* Bump the generation number if necessary.  */
   if (any_tls)
     if (__builtin_expect (++GL(dl_tls_generation) == 0, 0))
-      __libc_fatal (_("TLS generation counter wrapped!  Please send report with the 'glibcbug' script."));
+      __libc_fatal (_("TLS generation counter wrapped!  Please report this."));
 #endif
 
   /* Run the initializer functions of new objects.  */
@@ -502,14 +532,14 @@ cannot create TLS data structures"));
 
   /* Let the user know about the opencount.  */
   if (__builtin_expect (GLRO(dl_debug_mask) & DL_DEBUG_FILES, 0))
-    GLRO(dl_debug_printf) ("opening file=%s; opencount == %u\n\n",
-			   new->l_name, new->l_opencount);
+    GLRO(dl_debug_printf) ("opening file=%s [%lu]; opencount=%u\n\n",
+			   new->l_name, new->l_ns, new->l_opencount);
 }
 
 
 void *
 internal_function
-_dl_open (const char *file, int mode, const void *caller_dlopen)
+_dl_open (const char *file, int mode, const void *caller_dlopen, Lmid_t nsid)
 {
   struct dl_open_args args;
   const char *objname;
@@ -524,11 +554,35 @@ _dl_open (const char *file, int mode, const void *caller_dlopen)
   /* Make sure we are alone.  */
   __rtld_lock_lock_recursive (GL(dl_load_lock));
 
+  if (nsid == LM_ID_NEWLM)
+    {
+      /* Find a new namespace.  */
+      for (nsid = 1; nsid < DL_NNS; ++nsid)
+	if (GL(dl_ns)[nsid]._ns_loaded == NULL)
+	  break;
+
+      if (nsid == DL_NNS)
+	{
+	  /* No more namespace available.  */
+	  __rtld_lock_unlock_recursive (GL(dl_load_lock));
+
+	  GLRO(dl_signal_error) (EINVAL, file, NULL, N_("\
+no more namespaces available for dlmopen()"));
+	}
+    }
+  /* Never allow loading a DSO in a namespace which is empty.  Such
+     direct placements is only causing problems.  */
+  else if (nsid != LM_ID_BASE && nsid != __LM_ID_CALLER
+	   && GL(dl_ns)[nsid]._ns_nloaded == 0)
+    GLRO(dl_signal_error) (EINVAL, file, NULL,
+			   N_("invalid target namespace in dlmopen()"));
+
   args.file = file;
   args.mode = mode;
   args.caller_dlopen = caller_dlopen;
   args.caller_dl_open = RETURN_ADDRESS (0);
   args.map = NULL;
+  args.nsid = nsid;
   errcode = GLRO(dl_catch_error) (&objname, &errstring, dl_open_worker, &args);
 
 #ifndef MAP_COPY

elf/dl-support.c

@@ -67,10 +67,8 @@ const char *_dl_origin_path;
 /* Nonzero if runtime lookup should not update the .got/.plt.  */
 int _dl_bind_not;
 
-/* Initially empty list of loaded objects.  */
-struct link_map *_dl_loaded;
-/* Number of object in the _dl_loaded list.  */
-unsigned int _dl_nloaded;
+/* Namespace information.  */
+struct link_namespaces _dl_ns[DL_NNS];
 
 /* Incremented whenever something may have been added to dl_loaded. */
 unsigned long long _dl_load_adds;
@@ -79,12 +77,6 @@ unsigned long long _dl_load_adds;
    main application but here we don't have something like this.  So
    create a fake scope containing nothing.  */
 struct r_scope_elem _dl_initial_searchlist;
-/* Variable which can be used in lookup to process the global scope.  */
-struct r_scope_elem *_dl_global_scope[2] = { &_dl_initial_searchlist, NULL };
-/* This is a global pointer to this structure which is public.  It is
-   used by dlopen/dlclose to add and remove objects from what is regarded
-   to be the global scope.  */
-struct r_scope_elem *_dl_main_searchlist = &_dl_initial_searchlist;
 
 #ifndef HAVE_INLINED_SYSCALLS
 /* Nonzero during startup.  */
@@ -109,11 +101,6 @@ hp_timing_t _dl_cpuclock_offset;
 void (*_dl_init_static_tls) (struct link_map *) = &_dl_nothread_init_static_tls;
 #endif
 
-/* This is zero at program start to signal that the global scope map is
-   allocated by rtld.  Later it keeps the size of the map.  It might be
-   reset if in _dl_close if the last global object is removed.  */
-size_t _dl_global_scope_alloc;
-
 size_t _dl_pagesize;
 
 unsigned int _dl_osversion;
@@ -149,6 +136,8 @@ int (*_dl_make_stack_executable_hook) (void **) internal_function
 #ifdef NEED_DL_SYSINFO
 /* Needed for improved syscall handling on at least x86/Linux.  */
 uintptr_t _dl_sysinfo = DL_SYSINFO_DEFAULT;
+#endif
+#if defined NEED_DL_SYSINFO || defined NEED_DL_SYSINFO_DSO
 /* Address of the ELF headers in the vsyscall page.  */
 const ElfW(Ehdr) *_dl_sysinfo_dso;
 #endif
@@ -196,6 +185,11 @@ _dl_aux_init (ElfW(auxv_t) *av)
       case AT_SYSINFO:
 	GL(dl_sysinfo) = av->a_un.a_val;
 	break;
+#endif
+#if defined NEED_DL_SYSINFO || defined NEED_DL_SYSINFO_DSO
+      case AT_SYSINFO_EHDR:
+	GL(dl_sysinfo_dso) = av->a_un.a_ptr;
+	break;
 #endif
       case AT_UID:
 	uid ^= av->a_un.a_val;
@@ -257,22 +251,22 @@ _dl_non_dynamic_init (void)
 
   if (__libc_enable_secure)
     {
-      static const char *unsecure_envvars[] =
-      {
-	UNSECURE_ENVVARS,
+      static const char unsecure_envvars[] =
+	UNSECURE_ENVVARS
 #ifdef EXTRA_UNSECURE_ENVVARS
 	EXTRA_UNSECURE_ENVVARS
 #endif
-      };
-      size_t cnt;
+	;
+      const char *cp = unsecure_envvars;
 
-      for (cnt = 0;
-	   cnt < sizeof (unsecure_envvars) / sizeof (unsecure_envvars[0]);
-	   ++cnt)
-	unsetenv (unsecure_envvars[cnt]);
+      while (cp < unsecure_envvars + sizeof (unsecure_envvars))
+	{
+	  __unsetenv (cp);
+	  cp = (const char *) __rawmemchr (cp, '\0') + 1;
+	}
 
       if (__access ("/etc/suid-debug", F_OK) != 0)
-	unsetenv ("MALLOC_CHECK_");
+	__unsetenv ("MALLOC_CHECK_");
     }
 
 #ifdef DL_PLATFORM_INIT
@@ -287,6 +281,11 @@ _dl_non_dynamic_init (void)
   if (_dl_platform != NULL)
     _dl_platformlen = strlen (_dl_platform);
 
+#if defined (__i386__) && !defined (USE_TLS)
+  /* Load libs not using TLS.  */
+  _dl_osversion = 0x20205;
+#endif
+
   /* Scan for a program header telling us the stack is nonexecutable.  */
   if (_dl_phdr != NULL)
     for (uint_fast16_t i = 0; i < _dl_phnum; ++i)

elf/dl-sym.c

@@ -69,17 +69,19 @@ do_sym (void *handle, const char *name, void *who,
 
   /* If the address is not recognized the call comes from the main
      program (we hope).  */
-  struct link_map *match = GL(dl_loaded);
+  struct link_map *match = GL(dl_ns)[LM_ID_BASE]._ns_loaded;
 
   /* Find the highest-addressed object that CALLER is not below.  */
-  for (struct link_map *l = GL(dl_loaded); l != NULL; l = l->l_next)
-    if (caller >= l->l_map_start && caller < l->l_map_end)
-      {
-	/* There must be exactly one DSO for the range of the virtual
-	   memory.  Otherwise something is really broken.  */
-	match = l;
-	break;
-      }
+  for (Lmid_t ns = 0; ns < DL_NNS; ++ns)
+    for (struct link_map *l = GL(dl_ns)[ns]._ns_loaded; l != NULL;
+	 l = l->l_next)
+      if (caller >= l->l_map_start && caller < l->l_map_end)
+	{
+	  /* There must be exactly one DSO for the range of the virtual
+	     memory.  Otherwise something is really broken.  */
+	  match = l;
+	  break;
+	}
 
   if (handle == RTLD_DEFAULT)
     /* Search the global scope.  */
@@ -88,11 +90,11 @@ do_sym (void *handle, const char *name, void *who,
 				       NULL);
   else if (handle == RTLD_NEXT)
     {
-      if (__builtin_expect (match == GL(dl_loaded), 0))
+      if (__builtin_expect (match == GL(dl_ns)[LM_ID_BASE]._ns_loaded, 0))
 	{
-	  if (! GL(dl_loaded)
-	      || caller < GL(dl_loaded)->l_map_start
-	      || caller >= GL(dl_loaded)->l_map_end)
+	  if (match == NULL
+	      || caller < match->l_map_start
+	      || caller >= match->l_map_end)
 	    GLRO(dl_signal_error) (0, NULL, NULL, N_("\
 RTLD_NEXT used in code not dynamically loaded"));
 	}

elf/dl-version.c

@@ -59,7 +59,8 @@ find_needed (const char *name, struct link_map *map)
   struct link_map *tmap;
   unsigned int n;
 
-  for (tmap = GL(dl_loaded); tmap != NULL; tmap = tmap->l_next)
+  for (tmap = GL(dl_ns)[map->l_ns]._ns_loaded; tmap != NULL;
+       tmap = tmap->l_next)
     if (_dl_name_match_p (name, tmap))
       return tmap;
 
@@ -243,7 +244,7 @@ _dl_check_map_versions (struct link_map *map, int verbose, int trace_mode)
 					   ? map->l_name : rtld_progname),
 					  aux->vna_hash,
 					  strtab + aux->vna_name,
-					  needed, verbose,
+					  needed->l_real, verbose,
 					  aux->vna_flags & VER_FLG_WEAK);
 
 		  /* Compare the version index.  */

elf/do-lookup.h

@@ -42,7 +42,7 @@ do_lookup_x (const char *undef_name, unsigned long int hash,
       int num_versions = 0;
       const ElfW(Sym) *versioned_sym = NULL;
 
-      map = list[i];
+      map = list[i]->l_real;
 
       /* Here come the extra test needed for `_dl_lookup_symbol_skip'.  */
       if (skip != NULL && map == skip)

elf/do-rel.h

@@ -1,5 +1,5 @@
 /* Do relocations for ELF dynamic linking.
-   Copyright (C) 1995-2002, 2003 Free Software Foundation, Inc.
+   Copyright (C) 1995-2003, 2004 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -49,7 +49,7 @@
    relocations; they should be set up to call _dl_runtime_resolve, rather
    than fully resolved now.  */
 
-static inline void __attribute__ ((always_inline))
+auto inline void __attribute__ ((always_inline))
 elf_dynamic_do_rel (struct link_map *map,
 		    ElfW(Addr) reladdr, ElfW(Addr) relsize,
 		    int lazy)

elf/dynamic-link.h

@@ -64,8 +64,12 @@ elf_machine_lazy_rel (struct link_map *map,
 
 
 /* Read the dynamic section at DYN and fill in INFO with indices DT_*.  */
-
-static inline void __attribute__ ((unused, always_inline))
+#ifndef RESOLVE
+static
+#else
+auto
+#endif
+inline void __attribute__ ((unused, always_inline))
 elf_get_dynamic_info (struct link_map *l, ElfW(Dyn) *temp)
 {
   ElfW(Dyn) *dyn = l->l_ld;

elf/elf.h

@@ -2402,8 +2402,13 @@ typedef Elf32_Addr Elf32_Conflict;
 #define R_390_TLS_DTPOFF	55	/* Offset in TLS block.	 */
 #define R_390_TLS_TPOFF		56	/* Negated offset in static TLS
 					   block.  */
+#define R_390_20		57	/* Direct 20 bit.  */
+#define R_390_GOT20		58	/* 20 bit GOT offset.  */
+#define R_390_GOTPLT20		59	/* 20 bit offset to jump slot.  */
+#define R_390_TLS_GOTIE20	60	/* 20 bit GOT offset for static TLS
+					   block offset.  */
 /* Keep this the last entry.  */
-#define R_390_NUM		57
+#define R_390_NUM		61
 
 
 /* CRIS relocations.  */
@@ -2464,6 +2469,35 @@ typedef Elf32_Addr Elf32_Conflict;
 #define R_X86_64_NUM		24
 
 
+/* AM33 relocations.  */
+#define R_MN10300_NONE		0	/* No reloc.  */
+#define R_MN10300_32		1	/* Direct 32 bit.  */
+#define R_MN10300_16		2	/* Direct 16 bit.  */
+#define R_MN10300_8		3	/* Direct 8 bit.  */
+#define R_MN10300_PCREL32	4	/* PC-relative 32-bit.  */
+#define R_MN10300_PCREL16	5	/* PC-relative 16-bit signed.  */
+#define R_MN10300_PCREL8	6	/* PC-relative 8-bit signed.  */
+#define R_MN10300_GNU_VTINHERIT	7	/* Ancient C++ vtable garbage... */
+#define R_MN10300_GNU_VTENTRY	8	/* ... collection annotation.  */
+#define R_MN10300_24		9	/* Direct 24 bit.  */
+#define R_MN10300_GOTPC32	10	/* 32-bit PCrel offset to GOT.  */
+#define R_MN10300_GOTPC16	11	/* 16-bit PCrel offset to GOT.  */
+#define R_MN10300_GOTOFF32	12	/* 32-bit offset from GOT.  */
+#define R_MN10300_GOTOFF24	13	/* 24-bit offset from GOT.  */
+#define R_MN10300_GOTOFF16	14	/* 16-bit offset from GOT.  */
+#define R_MN10300_PLT32		15	/* 32-bit PCrel to PLT entry.  */
+#define R_MN10300_PLT16		16	/* 16-bit PCrel to PLT entry.  */
+#define R_MN10300_GOT32		17	/* 32-bit offset to GOT entry.  */
+#define R_MN10300_GOT24		18	/* 24-bit offset to GOT entry.  */
+#define R_MN10300_GOT16		19	/* 16-bit offset to GOT entry.  */
+#define R_MN10300_COPY		20	/* Copy symbol at runtime.  */
+#define R_MN10300_GLOB_DAT	21	/* Create GOT entry.  */
+#define R_MN10300_JMP_SLOT	22	/* Create PLT entry.  */
+#define R_MN10300_RELATIVE	23	/* Adjust by program base.  */
+
+#define R_MN10300_NUM		24
+
+
 /* M32R relocs.  */
 #define R_M32R_NONE		0	/* No reloc. */
 #define R_M32R_16		1	/* Direct 16 bit. */

elf/ldconfig.c

@@ -944,17 +944,19 @@ search_dirs (void)
 
 
 static void parse_conf_include (const char *config_file, unsigned int lineno,
-				bool do_chroot, const char *pattern);
+				const char *prefix, bool do_chroot,
+				const char *pattern);
 
 /* Parse configuration file.  */
 static void
-parse_conf (const char *filename, bool do_chroot)
+parse_conf (const char *filename, const char *prefix, bool do_chroot)
 {
   FILE *file = NULL;
   char *line = NULL;
   const char *canon;
   size_t len = 0;
   unsigned int lineno;
+  size_t prefix_len = prefix ? strlen (prefix) : 0;
 
   if (do_chroot && opt_chroot)
     {
@@ -1015,7 +1017,14 @@ parse_conf (const char *filename, bool do_chroot)
 	  cp += 8;
 	  while ((dir = strsep (&cp, " \t")) != NULL)
 	    if (dir[0] != '\0')
-	      parse_conf_include (filename, lineno, do_chroot, dir);
+	      parse_conf_include (filename, lineno, prefix, do_chroot, dir);
+	}
+      else if (prefix != NULL)
+	{
+	  size_t cp_len = strlen (cp);
+	  char new_cp [prefix_len + cp_len + 1];
+	  memcpy (mempcpy (new_cp, prefix, prefix_len), cp, cp_len + 1);
+	  add_dir (new_cp);
 	}
       else
 	add_dir (cp);
@@ -1031,7 +1040,7 @@ parse_conf (const char *filename, bool do_chroot)
    config files to read.  */
 static void
 parse_conf_include (const char *config_file, unsigned int lineno,
-		    bool do_chroot, const char *pattern)
+		    const char *prefix, bool do_chroot, const char *pattern)
 {
   if (opt_chroot && pattern[0] != '/')
     error (EXIT_FAILURE, 0,
@@ -1061,7 +1070,7 @@ parse_conf_include (const char *config_file, unsigned int lineno,
     {
     case 0:
       for (size_t i = 0; i < gl.gl_pathc; ++i)
-	parse_conf (gl.gl_pathv[i], false);
+	parse_conf (gl.gl_pathv[i], prefix, false);
       globfree64 (&gl);
       break;
 
@@ -1101,6 +1110,8 @@ main (int argc, char **argv)
 {
   int remaining;
 
+  arch_startup (argc, argv);
+
   /* Parse and process arguments.  */
   argp_parse (&argp, argc, argv, 0, &remaining, NULL);
 
@@ -1209,12 +1220,14 @@ main (int argc, char **argv)
 
   if (!opt_only_cline)
     {
-      parse_conf (config_file, true);
+      parse_conf (config_file, NULL, true);
 
       /* Always add the standard search paths.  */
       add_system_dir (SLIBDIR);
       if (strcmp (SLIBDIR, LIBDIR))
 	add_system_dir (LIBDIR);
+
+      add_arch_dirs (config_file);
     }
 
   search_dirs ();

elf/ldd.bash.in

@@ -105,6 +105,21 @@ add_env="$add_env LD_VERBOSE=$verbose"
 if test "$unused" = yes; then
   add_env="$add_env LD_DEBUG=\"$LD_DEBUG${LD_DEBUG:+,}unused\""
 fi
+
+# The following use of cat is needed to make ldd work in SELinux
+# environments where the executed program might not have permissions
+# to write to the console/tty.  But only bash 3.x supports the pipefail
+# option, and we don't bother to handle the case for older bash versions.
+if set -o pipefail 2> /dev/null; then
+  try_trace() {
+    eval $add_env '"$@"' | cat
+  }
+else
+  try_trace() {
+    eval $add_env '"$@"'
+  }
+fi
+
 case $# in
 0)
   echo >&2 'ldd:' $"missing file arguments"
@@ -153,7 +168,16 @@ warning: you do not have execution permission for" "\`$file'" >&2
     fi
     case $ret in
     0)
-      eval $add_env '"$file"' || result=1
+      # If the program exits with exit code 5, it means the process has been
+      # invoked with __libc_enable_secure.  Fall back to running it through
+      # the dynamic linker.
+      try_trace "$file"
+      rc=$?
+      if [ $rc = 5 ]; then
+	try_trace "$RTLD" "$file"
+	rc=$?
+      fi
+      [ $rc = 0 ] || result=1
       ;;
     1)
       # This can be a non-ELF binary or no binary at all.
@@ -163,10 +187,7 @@ warning: you do not have execution permission for" "\`$file'" >&2
       }
       ;;
     2)
-      # The following use of cat is needed to make ldd work in SELinux
-      # environments where the executed program might not have permissions
-      # to write to the console/tty.
-      eval $add_env \${RTLD} '"$file"' | cat || result=1
+      try_trace "$RTLD" "$file" || result=1
       ;;
     *)
       echo 'ldd:' ${RTLD} $"exited with unknown exit code" "($ret)" >&2