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i386/x86_64: punt HAVE_CPP_ASM_DEBUGINFO 

Pretty sure we require recent enough versions of gcc/binutils to make this
check pointless.  I can't any logs in the last few years where this check
didn't return "yes".

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Mike Frysinger 2012-08-12 15:13:10 -04:00
parent d427a4f8a4
commit ca98e1710e
7 changed files with 21 additions and 198 deletions
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16
ChangeLog
View File

@ -1,3 +1,19 @@
2012-08-14 Mike Frysinger <vapier@gentoo.org>
* config.h.in (HAVE_CPP_ASM_DEBUGINFO): Delete.
* sysdeps/i386/configure.in: Remove assembler-with-cpp debug check.
* sysdeps/i386/configure: Regenerated.
* sysdeps/i386/sysdep.h (ENTRY): Remove calls to STABS_CURRENT_FILE1,
STABS_CURRENT_FILE, and STABS_FUN.
(END): Remove call to STABS_FUN_END.
(STABS_CURRENT_FILE1): Delete.
(STABS_CURRENT_FILE): Likewise.
(STABS_FUN): Likewise.
(STABS_FUN_END): Likewise.
(STABS_FUN2): Likewise.
* sysdeps/x86_64/configure.in: Remove assembler-with-cpp debug check.
* sysdeps/x86_64/configure: Regenerated.
2012-08-14 Roland McGrath <roland@hack.frob.com> 2012-08-14 Roland McGrath <roland@hack.frob.com>
* elf/dl-open.c: Include <atomic.h>. * elf/dl-open.c: Include <atomic.h>.

3
config.h.in
View File

@ -46,9 +46,6 @@
/* On powerpc64, use overlapping .opd entries. */ /* On powerpc64, use overlapping .opd entries. */
#undef USE_PPC64_OVERLAPPING_OPD #undef USE_PPC64_OVERLAPPING_OPD
/* Define if the assembler generates debugging information directly. */
#undef HAVE_CPP_ASM_DEBUGINFO
/* Define if _Unwind_Find_FDE should be exported from glibc. */ /* Define if _Unwind_Find_FDE should be exported from glibc. */
#undef EXPORT_UNWIND_FIND_FDE #undef EXPORT_UNWIND_FIND_FDE

51
sysdeps/i386/configure vendored
View File

@ -162,57 +162,6 @@ else
fi fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if -g produces usable source locations for assembler-with-cpp" >&5
$as_echo_n "checking if -g produces usable source locations for assembler-with-cpp... " >&6; }
if ${libc_cv_cpp_asm_debuginfo+:} false; then :
$as_echo_n "(cached) " >&6
else
cat > conftest.S <<EOF
#include "confdefs.h"
/* comment on
two lines */
${libc_cv_dot_text}
.globl foo
foo:
/* Unfortunately this test only works for a real instruction,
not for any of the machine-independent pseudo-ops.
So we just have to assume everybody has a "nop". */
nop
/* comment */
nop
/* comment */
nop
EOF
if { ac_try='${CC-cc} $CPPFLAGS $ASFLAGS -g -c conftest.S 1>&5'
{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
(eval $ac_try) 2>&5
ac_status=$?
$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
test $ac_status = 0; }; } && {
ac_pattern='conftest\.S'
{ ac_try='readelf --debug-dump=line conftest.o |
grep $ac_pattern 1>&5'
{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
(eval $ac_try) 2>&5
ac_status=$?
$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
test $ac_status = 0; }; }
}; then
libc_cv_cpp_asm_debuginfo=yes
else
libc_cv_cpp_asm_debuginfo=no
fi
rm -f conftest*
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cpp_asm_debuginfo" >&5
$as_echo "$libc_cv_cpp_asm_debuginfo" >&6; }
if test $libc_cv_cpp_asm_debuginfo = yes; then
$as_echo "#define HAVE_CPP_ASM_DEBUGINFO 1" >>confdefs.h
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for SSE4 support" >&5 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for SSE4 support" >&5
$as_echo_n "checking for SSE4 support... " >&6; } $as_echo_n "checking for SSE4 support... " >&6; }
if ${libc_cv_cc_sse4+:} false; then : if ${libc_cv_cc_sse4+:} false; then :

33
sysdeps/i386/configure.in
View File

@ -5,39 +5,6 @@ AC_CHECK_HEADER([cpuid.h], ,
[AC_MSG_ERROR([gcc must provide the <cpuid.h> header])], [AC_MSG_ERROR([gcc must provide the <cpuid.h> header])],
[/* No default includes. */]) [/* No default includes. */])
AC_CACHE_CHECK(if -g produces usable source locations for assembler-with-cpp,
libc_cv_cpp_asm_debuginfo, [dnl
cat > conftest.S <<EOF
#include "confdefs.h"
/* comment on
two lines */
${libc_cv_dot_text}
.globl foo
foo:
/* Unfortunately this test only works for a real instruction,
not for any of the machine-independent pseudo-ops.
So we just have to assume everybody has a "nop". */
nop
/* comment */
nop
/* comment */
nop
EOF
if AC_TRY_COMMAND([${CC-cc} $CPPFLAGS $ASFLAGS -g -c conftest.S 1>&AS_MESSAGE_LOG_FD]) && {
ac_pattern='conftest\.S'
AC_TRY_COMMAND([readelf --debug-dump=line conftest.o |
grep $ac_pattern 1>&AS_MESSAGE_LOG_FD])
}; then
libc_cv_cpp_asm_debuginfo=yes
else
libc_cv_cpp_asm_debuginfo=no
fi
rm -f conftest*])AC_SUBST(libc_cv_cpp_asm_debuginfo)
if test $libc_cv_cpp_asm_debuginfo = yes; then
AC_DEFINE(HAVE_CPP_ASM_DEBUGINFO)
fi
dnl Check if -msse4 works. dnl Check if -msse4 works.
AC_CACHE_CHECK(for SSE4 support, libc_cv_cc_sse4, [dnl AC_CACHE_CHECK(for SSE4 support, libc_cv_cc_sse4, [dnl
LIBC_TRY_CC_OPTION([-msse4], [libc_cv_cc_sse4=yes], [libc_cv_cc_sse4=no]) LIBC_TRY_CC_OPTION([-msse4], [libc_cv_cc_sse4=yes], [libc_cv_cc_sse4=no])

29
sysdeps/i386/sysdep.h
View File

@ -59,12 +59,9 @@
incomplete stabs information. Fake some entries here which specify incomplete stabs information. Fake some entries here which specify
the current source file. */ the current source file. */
#define ENTRY(name) \ #define ENTRY(name) \
STABS_CURRENT_FILE1("") \
STABS_CURRENT_FILE(name) \
.globl C_SYMBOL_NAME(name); \ .globl C_SYMBOL_NAME(name); \
.type C_SYMBOL_NAME(name),@function; \ .type C_SYMBOL_NAME(name),@function; \
.align ALIGNARG(4); \ .align ALIGNARG(4); \
STABS_FUN(name) \
C_LABEL(name) \ C_LABEL(name) \
cfi_startproc; \ cfi_startproc; \
CALL_MCOUNT CALL_MCOUNT
@ -72,35 +69,11 @@
#undef END #undef END
#define END(name) \ #define END(name) \
cfi_endproc; \ cfi_endproc; \
ASM_SIZE_DIRECTIVE(name) \ ASM_SIZE_DIRECTIVE(name)
STABS_FUN_END(name)
#define ENTRY_CHK(name) ENTRY (name) #define ENTRY_CHK(name) ENTRY (name)
#define END_CHK(name) END (name) #define END_CHK(name) END (name)
#ifdef HAVE_CPP_ASM_DEBUGINFO
/* Disable that goop, because we just pass -g through to the assembler
and it generates proper line number information directly. */
# define STABS_CURRENT_FILE1(name)
# define STABS_CURRENT_FILE(name)
# define STABS_FUN(name)
# define STABS_FUN_END(name)
#else
/* Remove the following two lines once the gdb bug is fixed. */
#define STABS_CURRENT_FILE(name) \
STABS_CURRENT_FILE1 (#name)
#define STABS_CURRENT_FILE1(name) \
1: .stabs name,100,0,0,1b;
/* Emit stabs definition lines. We use F(0,1) and define t(0,1) as `int',
the same way gcc does it. */
#define STABS_FUN(name) STABS_FUN2(name, name##:F(0,1))
#define STABS_FUN2(name, namestr) \
.stabs "int:t(0,1)=r(0,1);-2147483648;2147483647;",128,0,0,0; \
.stabs #namestr,36,0,0,name;
#define STABS_FUN_END(name) \
1: .stabs "",36,0,0,1b-name;
#endif
/* If compiled for profiling, call `mcount' at the start of each function. */ /* If compiled for profiling, call `mcount' at the start of each function. */
#ifdef PROF #ifdef PROF
/* The mcount code relies on a normal frame pointer being on the stack /* The mcount code relies on a normal frame pointer being on the stack

54
sysdeps/x86_64/configure vendored
View File

@ -72,6 +72,10 @@ $as_echo X/"$0" |
chmod +x "$as_me.lineno" || chmod +x "$as_me.lineno" ||
{ $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; } { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
# If we had to re-execute with $CONFIG_SHELL, we're ensured to have
# already done that, so ensure we don't try to do so again and fall
# in an infinite loop. This has already happened in practice.
_as_can_reexec=no; export _as_can_reexec
# Don't try to exec as it changes $[0], causing all sort of problems # Don't try to exec as it changes $[0], causing all sort of problems
# (the dirname of $[0] is not the place where we might find the # (the dirname of $[0] is not the place where we might find the
# original and so on. Autoconf is especially sensitive to this). # original and so on. Autoconf is especially sensitive to this).
@ -163,56 +167,6 @@ fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if -g produces usable source locations for assembler-with-cpp" >&5
$as_echo_n "checking if -g produces usable source locations for assembler-with-cpp... " >&6; }
if ${libc_cv_cpp_asm_debuginfo+:} false; then :
$as_echo_n "(cached) " >&6
else
cat > conftest.S <<EOF
#include "confdefs.h"
/* comment on
two lines */
${libc_cv_dot_text}
.globl foo
foo:
/* Unfortunately this test only works for a real instruction,
not for any of the machine-independent pseudo-ops.
So we just have to assume everybody has a "nop". */
nop
/* comment */
nop
/* comment */
nop
EOF
if { ac_try='${CC-cc} $CPPFLAGS $ASFLAGS -g -c conftest.S 1>&5'
{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
(eval $ac_try) 2>&5
ac_status=$?
$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
test $ac_status = 0; }; } && {
ac_pattern='conftest\.S'
{ ac_try='readelf --debug-dump=line conftest.o |
grep $ac_pattern 1>&5'
{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
(eval $ac_try) 2>&5
ac_status=$?
$as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
test $ac_status = 0; }; }
}; then
libc_cv_cpp_asm_debuginfo=yes
else
libc_cv_cpp_asm_debuginfo=no
fi
rm -f conftest*
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cpp_asm_debuginfo" >&5
$as_echo "$libc_cv_cpp_asm_debuginfo" >&6; }
if test $libc_cv_cpp_asm_debuginfo = yes; then
$as_echo "#define HAVE_CPP_ASM_DEBUGINFO 1" >>confdefs.h
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for SSE4 support" >&5 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for SSE4 support" >&5
$as_echo_n "checking for SSE4 support... " >&6; } $as_echo_n "checking for SSE4 support... " >&6; }
if ${libc_cv_cc_sse4+:} false; then : if ${libc_cv_cc_sse4+:} false; then :

33
sysdeps/x86_64/configure.in
View File

@ -5,39 +5,6 @@ AC_CHECK_HEADER([cpuid.h], ,
[AC_MSG_ERROR([gcc must provide the <cpuid.h> header])], [AC_MSG_ERROR([gcc must provide the <cpuid.h> header])],
[/* No default includes. */]) [/* No default includes. */])
AC_CACHE_CHECK(if -g produces usable source locations for assembler-with-cpp,
libc_cv_cpp_asm_debuginfo, [dnl
cat > conftest.S <<EOF
#include "confdefs.h"
/* comment on
two lines */
${libc_cv_dot_text}
.globl foo
foo:
/* Unfortunately this test only works for a real instruction,
not for any of the machine-independent pseudo-ops.
So we just have to assume everybody has a "nop". */
nop
/* comment */
nop
/* comment */
nop
EOF
if AC_TRY_COMMAND([${CC-cc} $CPPFLAGS $ASFLAGS -g -c conftest.S 1>&AS_MESSAGE_LOG_FD]) && {
ac_pattern='conftest\.S'
AC_TRY_COMMAND([readelf --debug-dump=line conftest.o |
grep $ac_pattern 1>&AS_MESSAGE_LOG_FD])
}; then
libc_cv_cpp_asm_debuginfo=yes
else
libc_cv_cpp_asm_debuginfo=no
fi
rm -f conftest*])AC_SUBST(libc_cv_cpp_asm_debuginfo)
if test $libc_cv_cpp_asm_debuginfo = yes; then
AC_DEFINE(HAVE_CPP_ASM_DEBUGINFO)
fi
dnl Check if -msse4 works. dnl Check if -msse4 works.
AC_CACHE_CHECK(for SSE4 support, libc_cv_cc_sse4, [dnl AC_CACHE_CHECK(for SSE4 support, libc_cv_cc_sse4, [dnl
LIBC_TRY_CC_OPTION([-msse4], [libc_cv_cc_sse4=yes], [libc_cv_cc_sse4=no]) LIBC_TRY_CC_OPTION([-msse4], [libc_cv_cc_sse4=yes], [libc_cv_cc_sse4=no])