mirror of git://sourceware.org/git/glibc.git
Raise the minimum GCC version to 12.1 [BZ #32539]
For all Linux distros with glibc 2.40 which I can find, GCC 14.2 is used to compile glibc 2.40: OS GCC URL AOSC 14.2.0 https://aosc.io/ Arch Linux 14.2.0 https://archlinux.org/ ArchPOWER 14.2.0 https://archlinuxpower.org/ Artix 14.2.0 https://artixlinux.org/ Debian 14.2.0 https://www.debian.org/ Devuan 14.2.0 https://www.devuan.org/ Exherbo 14.2.0 https://www.exherbolinux.org/ Fedora 14.2.1 https://fedoraproject.org/ Gentoo 14.2.1 https://gentoo.org/ Kali Linux 14.2.0 https://www.kali.org/ KaOS 14.2.0 https://kaosx.us/ LiGurOS 14.2.0 https://liguros.gitlab.io/ Mageia 14.2.0 https://www.mageia.org/en/ Manjaro 14.2.0 https://manjaro.org/ NixOS 14.2.0 https://nixos.org/ openmamba 14.2.0 https://openmamba.org/ OpenMandriva 14.2.0 https://openmandriva.org/ openSUSE 14.2.0 https://www.opensuse.org/ Parabola 14.2.0 https://www.parabola.nu/ PLD Linux 14.2.0 https://pld-linux.org/ PureOS 14.2.0 https://pureos.net/ Raspbian 14.2.0 http://raspbian.org/ Slackware 14.2.0 http://www.slackware.com/ Solus 14.2.0 https://getsol.us/ T2 SDE 14.2.0 http://t2sde.org/ Ubuntu 14.2.0 https://www.ubuntu.com/ Wikidata 14.2.0 https://wikidata.org/ Support older versions of GCC to build glibc 2.42: 1. Need to work around bugs in older versions of GCC. 2. Can't use the new features in newer versions of GCC, which may be required for new features, like _Float16 which requires GCC 12.1 or above, in glibc, The main benefit of supporting older versions of GCC is easier backport of bug fixes to the older releases of glibc, which can be mitigated by avoiding incompatible features in newer versions of GCC for critical bug fixes. Require GCC 12.1 or newer to build. Remove GCC version check for PowerPC and s390x. TEST_CC and TEST_CXX can be used to test the glibc build with the older versions of GCC. For glibc developers who are using Linux OSes which don't come with GCC 12.1 or newer, they should build and install GCC 12.1 or newer to work on glibc. This fixes BZ #32539. Signed-off-by: H.J. Lu <hjl.tools@gmail.com> Reviewed-by: Sam James <sam@gentoo.org>
This commit is contained in:
H.J. Lu
parent
dbb2880e61
commit
27b96e069a
23
INSTALL
23
INSTALL
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@ -488,31 +488,14 @@ build the GNU C Library:
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As of release time, GNU 'make' 4.4.1 is the newest verified to work
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to build the GNU C Library.
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* GCC 6.2 or newer
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* GCC 12.1 or newer
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GCC 6.2 or higher is required. In general it is recommended to use
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the newest version of the compiler that is known to work for
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GCC 12.1 or higher is required. In general it is recommended to
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use the newest version of the compiler that is known to work for
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building the GNU C Library, as newer compilers usually produce
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better code. As of release time, GCC 14.2.1 is the newest compiler
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verified to work to build the GNU C Library.
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For PowerPC 64-bits little-endian (powerpc64le), a GCC version with
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support for '-mno-gnu-attribute', '-mabi=ieeelongdouble', and
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'-mabi=ibmlongdouble' is required. Likewise, the compiler must
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also support passing '-mlong-double-128' with the preceding
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options. As of release, this implies GCC 7.4 and newer (excepting
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GCC 7.5.0, see GCC PR94200). These additional features are
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required for building the GNU C Library with support for IEEE long
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double.
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For ARC architecture builds, GCC 8.3 or higher is needed.
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For s390x architecture builds, GCC 7.1 or higher is needed (See gcc
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Bug 98269).
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For AArch64 architecture builds with mathvec enabled, GCC 10 or
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higher is needed due to dependency on arm_sve.h.
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For multi-arch support it is recommended to use a GCC which has
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been built with support for GNU indirect functions. This ensures
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that correct debugging information is generated for functions
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@ -5764,6 +5764,7 @@ if test $ac_verc_fail = yes; then
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fi
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# Require GCC 12.1 to build.
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if $CC is sufficient to build libc" >&5
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printf %s "checking if $CC is sufficient to build libc... " >&6; }
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if test ${libc_cv_compiler_ok+y}
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@ -5778,7 +5779,7 @@ int
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main (void)
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{
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#if !defined __GNUC__ || __GNUC__ < 6 || (__GNUC__ == 6 && __GNUC_MINOR__ < 2)
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#if !defined __GNUC__ || __GNUC__ < 12 || (__GNUC__ == 12 && __GNUC_MINOR__ < 1)
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#error insufficient compiler
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#endif
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;
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@ -573,9 +573,10 @@ AC_CHECK_PROG_VER(BISON, bison, --version,
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[bison (GNU Bison) \([0-9]*\.[0-9.]*\)],
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[2.7*|[3-9].*|[1-9][0-9]*], critic_missing="$critic_missing bison")
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# Require GCC 12.1 to build.
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AC_CACHE_CHECK([if $CC is sufficient to build libc], libc_cv_compiler_ok, [
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AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[]], [[
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#if !defined __GNUC__ || __GNUC__ < 6 || (__GNUC__ == 6 && __GNUC_MINOR__ < 2)
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#if !defined __GNUC__ || __GNUC__ < 12 || (__GNUC__ == 12 && __GNUC_MINOR__ < 1)
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#error insufficient compiler
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#endif]])],
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[libc_cv_compiler_ok=yes],
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@ -530,32 +530,14 @@ As of release time, GNU @code{make} 4.4.1 is the newest verified to work
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to build @theglibc{}.
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@item
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GCC 6.2 or newer
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GCC 12.1 or newer
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GCC 6.2 or higher is required. In general it is recommended to use
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GCC 12.1 or higher is required. In general it is recommended to use
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the newest version of the compiler that is known to work for building
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@theglibc{}, as newer compilers usually produce better code. As of
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release time, GCC 14.2.1 is the newest compiler verified to work to build
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@theglibc{}.
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For PowerPC 64-bits little-endian (powerpc64le), a GCC version with support
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for @option{-mno-gnu-attribute}, @option{-mabi=ieeelongdouble}, and
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@option{-mabi=ibmlongdouble} is required. Likewise, the compiler must also
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support passing @option{-mlong-double-128} with the preceding options. As
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of release, this implies GCC 7.4 and newer (excepting GCC 7.5.0, see GCC
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PR94200). These additional features are required for building the GNU C
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Library with support for IEEE long double.
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@c powerpc64le performs an autoconf test to verify the compiler compiles with
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@c commands like "$CC -c foo.c -mabi=ibmlongdouble -mlong-double-128".
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For ARC architecture builds, GCC 8.3 or higher is needed.
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For s390x architecture builds, GCC 7.1 or higher is needed (See gcc Bug 98269).
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For AArch64 architecture builds with mathvec enabled, GCC 10 or higher is needed
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due to dependency on arm_sve.h.
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For multi-arch support it is recommended to use a GCC which has been built with
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support for GNU indirect functions. This ensures that correct debugging
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information is generated for functions selected by IFUNC resolvers. This
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@ -309,46 +309,6 @@ then
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fi
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if $CC is sufficient to build libc on s390x" >&5
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printf %s "checking if $CC is sufficient to build libc on s390x... " >&6; }
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if test ${libc_cv_compiler_ok_on_s390x+y}
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then :
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printf %s "(cached) " >&6
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else case e in #(
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e)
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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int
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main (void)
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{
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#if !defined __GNUC__ || __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 1)
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#error insufficient compiler for building on s390x
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#endif
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;
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return 0;
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}
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_ACEOF
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if ac_fn_c_try_cpp "$LINENO"
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then :
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libc_cv_compiler_ok_on_s390x=yes
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else case e in #(
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e) libc_cv_compiler_ok_on_s390x=no ;;
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esac
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fi
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rm -f conftest.err conftest.i conftest.$ac_ext ;;
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esac
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fi
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_compiler_ok_on_s390x" >&5
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printf "%s\n" "$libc_cv_compiler_ok_on_s390x" >&6; }
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if test "$libc_cv_compiler_ok_on_s390x" != yes; then
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critic_missing="$critic_missing On s390x, GCC >= 7.1.0 is required."
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fi
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test -n "$critic_missing" && as_fn_error $? "
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*** $critic_missing" "$LINENO" 5
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@ -161,23 +161,5 @@ then
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AC_DEFINE(HAVE_S390_MIN_ARCH13_ZARCH_ASM_SUPPORT)
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fi
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dnl test if GCC is new enough. See gcc "Bug 98269 - gcc 6.5.0
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dnl __builtin_add_overflow() with small uint32_t values incorrectly detects
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dnl overflow
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dnl (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98269)
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AC_CACHE_CHECK([if $CC is sufficient to build libc on s390x],
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libc_cv_compiler_ok_on_s390x, [
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AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[]], [[
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#if !defined __GNUC__ || __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 1)
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#error insufficient compiler for building on s390x
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#endif
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]])],
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[libc_cv_compiler_ok_on_s390x=yes],
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[libc_cv_compiler_ok_on_s390x=no])])
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if test "$libc_cv_compiler_ok_on_s390x" != yes; then
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critic_missing="$critic_missing On s390x, GCC >= 7.1.0 is required."
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fi
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test -n "$critic_missing" && AC_MSG_ERROR([
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*** $critic_missing])
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@ -1,89 +1,6 @@
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# This file is generated from configure.ac by Autoconf. DO NOT EDIT!
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# Local configure fragment for sysdeps/unix/sysv/linux/powerpc/.
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CC $CFLAGS -mlong-double-128 uses IBM extended format" >&5
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printf %s "checking whether $CC $CFLAGS -mlong-double-128 uses IBM extended format... " >&6; }
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if test ${libc_cv_mlong_double_128ibm+y}
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then :
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printf %s "(cached) " >&6
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else case e in #(
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e) save_CFLAGS="$CFLAGS"
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CFLAGS="$CFLAGS -mlong-double-128"
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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#include <float.h>
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int
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main (void)
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{
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#if LDBL_MANT_DIG != 106
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# error "compiler doesn't implement IBM extended format of long double"
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#endif
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long double foobar (long double x) { return x; }
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;
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return 0;
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}
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_ACEOF
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if ac_fn_c_try_compile "$LINENO"
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then :
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libc_cv_mlong_double_128ibm=yes
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else case e in #(
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e) libc_cv_mlong_double_128ibm=no ;;
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esac
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
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CFLAGS="$save_CFLAGS" ;;
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esac
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fi
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_mlong_double_128ibm" >&5
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printf "%s\n" "$libc_cv_mlong_double_128ibm" >&6; }
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if test "$libc_cv_mlong_double_128ibm" = no; then
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CC $CFLAGS supports -mabi=ibmlongdouble" >&5
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printf %s "checking whether $CC $CFLAGS supports -mabi=ibmlongdouble... " >&6; }
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if test ${libc_cv_mabi_ibmlongdouble+y}
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then :
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printf %s "(cached) " >&6
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else case e in #(
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e) save_CFLAGS="$CFLAGS"
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CFLAGS="$CFLAGS -mlong-double-128 -mabi=ibmlongdouble"
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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#include <float.h>
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int
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main (void)
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{
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#if LDBL_MANT_DIG != 106
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# error "compiler doesn't implement IBM extended format of long double"
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#endif
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long double foobar (long double x) { return x; }
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;
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return 0;
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}
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_ACEOF
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if ac_fn_c_try_compile "$LINENO"
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then :
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libc_cv_mabi_ibmlongdouble=yes
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else case e in #(
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e) libc_cv_mabi_ibmlongdouble=no ;;
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esac
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
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CFLAGS="$save_CFLAGS" ;;
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esac
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fi
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_mabi_ibmlongdouble" >&5
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printf "%s\n" "$libc_cv_mabi_ibmlongdouble" >&6; }
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if test "$libc_cv_mabi_ibmlongdouble" = yes; then
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CFLAGS="$CFLAGS -mabi=ibmlongdouble"
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else
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as_fn_error $? "this configuration requires -mlong-double-128 IBM extended format support" "$LINENO" 5
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fi
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fi
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{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for linker that supports --no-tls-get-addr-optimize" >&5
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printf %s "checking for linker that supports --no-tls-get-addr-optimize... " >&6; }
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libc_linker_feature=no
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@ -2,40 +2,6 @@ sinclude(./aclocal.m4)dnl Autoconf lossage
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GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
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# Local configure fragment for sysdeps/unix/sysv/linux/powerpc/.
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AC_CACHE_CHECK(whether $CC $CFLAGS -mlong-double-128 uses IBM extended format,
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libc_cv_mlong_double_128ibm, [dnl
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save_CFLAGS="$CFLAGS"
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CFLAGS="$CFLAGS -mlong-double-128"
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <float.h>]], [[
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#if LDBL_MANT_DIG != 106
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# error "compiler doesn't implement IBM extended format of long double"
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#endif
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long double foobar (long double x) { return x; }]])],
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libc_cv_mlong_double_128ibm=yes,
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libc_cv_mlong_double_128ibm=no)
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CFLAGS="$save_CFLAGS"])
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if test "$libc_cv_mlong_double_128ibm" = no; then
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AC_CACHE_CHECK(whether $CC $CFLAGS supports -mabi=ibmlongdouble,
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libc_cv_mabi_ibmlongdouble, [dnl
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save_CFLAGS="$CFLAGS"
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CFLAGS="$CFLAGS -mlong-double-128 -mabi=ibmlongdouble"
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <float.h>]], [[
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#if LDBL_MANT_DIG != 106
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# error "compiler doesn't implement IBM extended format of long double"
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#endif
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long double foobar (long double x) { return x; }]])],
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libc_cv_mabi_ibmlongdouble=yes,
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libc_cv_mabi_ibmlongdouble=no)
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CFLAGS="$save_CFLAGS"])
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if test "$libc_cv_mabi_ibmlongdouble" = yes; then
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CFLAGS="$CFLAGS -mabi=ibmlongdouble"
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else
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AC_MSG_ERROR([this configuration requires -mlong-double-128 IBM extended format support])
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fi
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fi
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LIBC_LINKER_FEATURE([--no-tls-get-addr-optimize], [-Wl,--no-tls-get-addr-optimize],
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[libc_cv_tls_get_addr_optimize=yes], [libc_cv_tls_get_addr_optimize=no])
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LIBC_CONFIG_VAR([have-tls-get-addr-optimize], [$libc_cv_tls_get_addr_optimize])
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