Commit Graph

26 Commits

Author SHA1 Message Date
Mike Frysinger cb8a6dbd17 rename configure.in to configure.ac
Autoconf has been deprecating configure.in for quite a long time.
Rename all our configure.in and preconfigure.in files to .ac.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2013-10-30 17:32:08 +10:00
Carlos O'Donell 0f122b8d12 Configuring for i386 is no longer supported.
We no longer support configuring for i386, nor do we
elide such a configuration to i686. Configuring with
i386-* is a failure, and we provide an example of
how to fix that.

---

2013-04-17  Carlos O'Donell  <carlos@redhat.com>

	* configure.in: Remove i386 configure warning. Remove i386 case.
	* configure: Regenerate.
	* sysdeps/i386/configure.in: Raise error if config_machine is i386.
	Add example to error message.
	* sysdeps/i386/configure: Regenerate.
2013-04-17 17:13:20 -07:00
Carlos O'Donell a01f19c8fb i386: Fail at configure time for i386 builds.
This change does two things:

* Treats a target i386-* as if it were i686.
* Fails configure if the user is generating code
  for i386.

We no longer support i386 code-generation because the i386
lacks the atomic operations we need in glibc.

You can still configure for i386-*, but you get i686 code.

You can't build with --march=i386, --mtune=i386 or a compiler
that defaults to i386 code-generation.

I've added two i386 entries in the master todo list to discuss
merging and renaming:
http://sourceware.org/glibc/wiki/Development_Todo/Master#i386

The failure modes are fail-safe here. You compile for i386,
get i686, and try to run on i386 and it fails. The configure
log has a warning saying we elided to i686. There is no situation
that I can see where we run into any serious problems.

The patch makes the current state better in that we get less
confused users and we build successfully in more default
configurations.

The next enhancement would be to add --march=i?86
as suggested in #c20 of BZ#10062 for any i?86-* builds, which
would solve the problem of a 32-bit compiler that defaults to
i386 code-gen and glibc configured for i686-* target. Which
previously failed at build time, and now will fail at configure
time (requires adding --march=i686).

Updated NEWS with BZ #10060 and #10062.

No regressions.

---

2013-04-06  Carlos O'Donell  <carlos@redhat.com>

	[BZ #10060, #10062]
	* aclocal.m4 (LIBC_COMPILER_BUILTIN_INLINED): New macro.
	* sysdeps/i386/configure.in: Use LIBC_COMPILER_BUILTIN_INLINED and
	fail configure if __sync_val_compare_and_swap is not inlined.
	* sysdeps/i386/configure: Regenerate.
	* configure.in: Build for i686 when configured for i386.
	* configure: Regenerate.
	* README: Remove i386 reference.
2013-04-06 12:00:35 -04:00
Joseph Myers bef0b50749 Move system-specific settings out of toplevel configure.in and config.make.in. 2013-03-20 22:37:06 +00:00
Roland McGrath b8493de0ec Add missing magic to GLIBC_PROVIDES. 2012-10-09 15:41:30 -07:00
Mike Frysinger ca98e1710e 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>
2012-08-14 21:37:00 -04:00
Marek Polacek 3b05db33f6 Remove TLS configure checks. 2012-07-17 23:57:43 +02:00
Marek Polacek 7b8e0d49cb Get rid of ASM_GLOBAL_DIRECTIVE. 2012-07-10 14:30:24 +02:00
Andreas Jaeger 6143dc8d00 Regenerate 2012-03-27 21:37:02 +02:00
Andreas Jaeger 1e3cdfda74 Merge branch 'elf-move'
Conflicts:
	debug/backtracesymsfd.c
	sysdeps/generic/elf/backtracesymsfd.c
	sysdeps/i386/configure.in
2012-03-27 21:35:36 +02:00
Joseph Myers 40b601fbb7 Use autoconf macro for testing compiler options with empty input. 2012-03-21 16:33:57 +00:00
Joseph Myers af6a1e3755 Fix sysdeps/i386/configure.in cpuid.h test for bootstrapping. 2012-03-07 20:51:54 +00:00
Ulrich Drepper 56f6f6a240 Use -msse2avx option for x86-64 libm functions 2012-01-28 14:48:46 -05:00
Ulrich Drepper ed72b6545f Check for FMA4 support and generate appropriate fma functions 2011-10-20 22:43:15 -04:00
H.J. Lu 435b95ebd0 AVX audit test failures with gcc 4.6 2011-02-02 19:28:44 -05:00
H.J. Lu a11ec63713 Add x86-32 FMA support 2010-04-14 22:27:59 -07:00
H.J. Lu 01f1f5ee8b Pass -mtune=i686 to assembler when compiling for i686 2010-03-04 21:30:17 -08:00
Roland McGrath 7967983fd4 configure tweaks, support $libc_add_on_config_subdirs 2009-09-15 14:14:42 -07:00
Jim Meyering a3d4298d83 Simplify cpuid.h configure test. 2009-08-08 10:25:58 -07:00
Ulrich Drepper 5192104773 x86/x86-64 now needs <cpuid.h> from gcc. 2009-08-02 10:38:44 -07:00
H.J. Lu 06e51c8f3d Add SSE4.2 support for strcspn, strpbrk, and strspn on x86-64. 2009-07-03 02:48:56 -07:00
Roland McGrath fd1bc8fb8a * sysdeps/i386/configure.in (libc_mtune_example): Variable removed.
* sysdeps/i386/configure: Regenerated.
2005-11-05 02:36:27 +00:00
Roland McGrath 2103c260f9 * sysdeps/generic/ldsodefs.h (_dl_out_of_memory_internal): Remove decl.
(_dl_out_of_memory): Use rtld_hidden_proto.
	* elf/dl-error.c (_dl_out_of_memory): Use rtld_hidden_data_def.
	(_dl_signal_error): Don't use INTUSE on _dl_out_of_memory.
	* elf/dl-open.c (_dl_open): Likewise.
	* elf/dl-deps.c (_dl_map_object_deps): Likewise.

	* sunrpc/des_impl.c (des_set_key): Make first argument unsigned char *.

	* elf/dl-addr.c (_dl_addr): Add a cast.

	* elf/unload3mod4.c: Declare foo.
	* elf/testobj2.c: Include <stdio.h>.

	* sysdeps/gnu/errlist.awk: Emit NERR macro for _sys_nerr_internal
	value constant, and use it in the defn.
	* sysdeps/gnu/errlist-compat.awk: Use NERR in array decl.
	Use actual size for compat array decls.

	* config.make.in (cc-mtune): New substituted variable.
	* configure.in (libc_cv_cc_mtune): New test for -mtune= switch,
	done only if libc_mtune_example is defined.
	* configure: Regenerated.
	* sysdeps/i386/configure.in (libc_mtune_example): Set it.
	* sysdeps/i386/configure: Regenerated.
	* sysdeps/i386/Makefile (CFLAGS-initfini.s): Use $(cc-mtune).
2005-03-06 00:08:10 +00:00
Roland McGrath 78d04074a1 2005-01-05 Roland McGrath <roland@redhat.com>
* configure.in (libc_cv_cpp_asm_debuginfo): Checked moved ...
	* sysdeps/i386/configure.in: ... here.  New file.
	* sysdeps/i386/configure: New generated file.
	* configure: Regenerated.
2005-01-05 09:39:54 +00:00
Ulrich Drepper a334319f65 (CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4. 2004-12-22 20:10:10 +00:00
Jakub Jelinek 0ecb606cb6 2.5-18.1 2007-07-12 18:26:36 +00:00