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* Remove configure tests for assembler CFI support.Joseph Myers2014-06-261-24/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes configure tests for assembler CFI support (and thereby eliminates an architecture-specific case in the main configure.ac), instead assuming that support is present unconditionally. The main test was added in 2003 around the time CFI support was added to the assembler. cfi_personality and cfi_lsda support were added to the assembler in 2006. cfi_sections support was added in 2009, a few weeks before binutils 2.20 was released; it's in 2.20, the minimum supported version, so even that configure test is obsolete. Tested x86_64 that the installed shared libraries are unchanged by this patch. * configure.ac (libc_cv_asm_cfi_directives): Remove configure test. * configure: Regenerated. * config.h.in (HAVE_ASM_CFI_DIRECTIVES): Remove macro undefine. * sysdeps/arm/configure.ac (libc_cv_asm_cfi_directive_sections): Remove configure test. * sysdeps/arm/configure: Regenerated. * sysdeps/nptl/configure.ac: Do not check libc_cv_asm_cfi_directives. * sysdeps/nptl/configure: Regenerated. * sysdeps/x86_64/nptl/configure.ac: Remove file. * sysdeps/x86_64/nptl/configure: Remove generated file. * b/sysdeps/generic/sysdep.h [HAVE_ASM_CFI_DIRECTIVES]: Make code unconditional. [!HAVE_ASM_CFI_DIRECTIVES]: Remove conditional code.
* Move USE_REGPARMS define to sysdeps/i386/configure.ac.Joseph Myers2014-06-251-4/+0
| | | | | | | | | | | | | This patch moves the USE_REGPARMS define from the toplevel configure.ac to sysdeps/i386/configure.ac. Tested x86 that the disassembly of installed shared libraries is unchanged by this patch. * configure.ac (USE_REGPARMS): Don't define here. * configure: Regenerated. * sysdeps/i386/configure.ac (USE_REGPARMS): Define here. * sysdeps/i386/configure: Regenerated.
* Remove BROKEN_PPC_ASM_CR0 configure test.Joseph Myers2014-06-251-12/+0
| | | | | | | | | | | | | | | One piece of architecture-specific code in the main configure.ac is the powerpc test that can define BROKEN_PPC_ASM_CR0. There's no need to move this to a sysdeps configure script, or to work out what bug it was testing in May 1998 to see if it's still relevant, since nothing in the source tree now uses the results of this test. Thus, this patch just removes the test in question. Not tested. * configure.ac (libc_cv_c_asmcr0_bug): Remove configure test. * configure: Regenerated. * config.h.in (BROKEN_PPC_ASM_CR0): Remove macro.
* Move base_machine and machine settings from configure.ac to sysdeps ↵Joseph Myers2014-06-251-36/+2
| | | | | | | | | | | | | | | | | | | | | | preconfigure fragments. This patch makes non-ex-ports architectures set base_machine and machine based on the original configured machine value in preconfigure fragments, like ex-ports architectures, rather than in the toplevel configure.ac. Tested x86 that the disassembly of installed shared libraries is unchanged by the patch. * configure.ac (base_machine): Do not set specially for particular machines here. * configure: Regenerated. * sysdeps/powerpc/preconfigure: Move machine and base_machine settings from configure.ac. * sysdeps/i386/preconfigure: New file. * sysdeps/s390/preconfigure: Likewise. * sysdeps/sh/preconfigure: Likewise. * sysdeps/sparc/preconfigure: Likewise.
* S/390: Port of lock elision to System/zDominik Vogt2014-05-091-0/+1
| | | | | | | | | | Added support for TX lock elision of pthread mutexes on s390 and s390x. This may improve lock scaling of existing programs on TX capable systems. The lock elision code is only built with --enable-lock-elision=yes and then requires a GCC version supporting the TX builtins. With lock elision default mutexes are elided via __builtin_tbegin, if the cpu supports transactions. By default lock elision is not enabled and the elision code is not built.
* nscd: Make SELinux checks dynamic.Carlos O'Donell2014-04-141-14/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The SELinux team has indicated to me that glibc's SELinux checks in nscd are not being carried out as they would expect the API to be used today. They would like to move away from static header defines for class and permissions and instead use dynamic checks at runtime that provide an answer which is dependent on the runtime status of SELinux i.e. more dynamic. The following patch is a minimal change that moves us forward in this direction. It does the following: * Stop checking for SELinux headers that define NSCD__SHMEMHOST. Check only for the presence or absence of the library. * Don't encode the specific SELinux permission constants into a table at build time, and instead use the symbolic name for the permission as expected. * Lookup the "What do we do if we don't know this permission?" policy and use that if we find SELinux's policy is older than the glibc policy e.g. we make a request for a permission that SELinux doesn't know about. * Lastly, translate the class and permission and then make the permission check. This is done every time we lookup a permission, and this is the expected way to use the API. SELinux will optimize this for us, and we expect the network latencies to hide these extra library calls. Tested on x86, x86-64, and via Fedora Rawhide since November 2013. See: https://sourceware.org/ml/libc-alpha/2014-04/msg00179.html
* PowerPC: define _CALL_ELF if compiler does notAdhemerval Zanella2014-04-061-2/+5
| | | | | | | | | | | | This patch makes the configure adds -D_CALL_ELF=1 when compiler does not define _CALL_ELF (versions before powerpc64le support). It cleans up compiler warnings on old compiler where _CALL_ELF is not defined on powerpc64(be) builds. It does by add a new config.make variable for configure-deduced CPPFLAGS and accumulate into that (confix-extra-cppflags). It also generalizes libc_extra_cflags so it accumulates in sysdeps configure fragmenets.
* stop supporting bash-1.xMike Frysinger2014-03-131-8/+0
| | | | | We've stopped supporting toolchain packages older than 2009, so punting bash-1.x is reasonable when bash-2 was released almost 20 years ago.
* delete ksh checksMike Frysinger2014-03-131-15/+0
| | | | Nothing in the tree uses ksh anymore, so punt these checks.
* Use __ehdr_start, when available, for rtld to get its own headers.Roland McGrath2014-03-131-0/+21
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* Set AUTOCONF variable when maintainer-mode is not usedAllan McRae2013-12-161-0/+2
| | | | | Fixes build issue introduced in 8894bad3 when configure.ac is altered and maintainer-mode is not enabled.
* Add --enable-maintainer-mode configure optionAllan McRae2013-12-161-16/+24
| | | | | | | | | Autoconf is tested for and run if needed only when --enable-maintainer-mode is used on configure. This results in the autom4te.cache directory only being written in the source directory during configure if automatic autoconf usage is requested. Fixes BZ #14120.
* Accept make versions 4.0 and greaterMarc-Antoine Perennou2013-10-311-1/+1
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* rename configure.in to configure.acMike Frysinger2013-10-301-0/+2172
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>
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