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2014-08-04IA64: Consolidate NPTL/non versions of vforkRoland McGrath
2014-08-04IA64: Consolidate NPTL/non versions of cloneRoland McGrath
2014-08-04Fix missing <math_private.h> in ldbl-96 fmaAndreas Schwab
2014-08-03add ChangeLog for previous commitMike Frysinger
2014-08-01Remove sysdeps/unix/sysv/linux/arm/lowlevellock.hRoland McGrath
2014-08-01Force eval for fma implementationsRichard Henderson
2014-08-01ARM: Move PTR_MANGLE et al out of Linux-specific file.Roland McGrath
2014-08-01Fix -Wundef warnings in regex_internal.hSiddhesh Poyarekar
2014-08-01Check if DEBUG is defined in regex_internal.cSiddhesh Poyarekar
The DEBUG macro is checked for its value in one place and if it is defined in another. Make this consistent across the two cases and use the same style that we did in mktime.c, which is to check if the macro is defined and it is set.
2014-08-01Fix -Wundef warnings in fnmatch.cSiddhesh Poyarekar
Fixes -Wundef warnings for MBSTATE_T and HAVE_STRING_H. The HAVE_STRING_H bit is a merge from the gnulib fnmatch.c and the MBSTATE_T fix has been posted to gnulib for inclusion.
2014-08-01NEWS: Explain the s390 jmp_buf / ucontext_t ABI change reversal.Stefan Liebler
2014-07-31Add __safe_fatal and use it in __pthread_unwind forwarder fallback.Roland McGrath
2014-07-31Use __builtin_trap for ABORT_INSTRUCTION.Roland McGrath
2014-07-31Split nptl-signals.h out from pthreadP.hRoland McGrath
2014-07-31[PATCH] S390: Fix remaining ONE_DIRECTION warning messagesStefan Liebler
This patch fixes the remaining ONE_DIRECTION warnings for s390 specific conversions. It defines ONE_DIRECTION to 0 like the patch from Steve Ellcey: https://www.sourceware.org/ml/libc-alpha/2014-05/msg00039.html Changelog: * sysdeps/s390/s390-64/utf16-utf32-z9.c (ONE_DIRECTION): Define. * sysdeps/s390/s390-64/utf8-utf16-z9.c (ONE_DIRECTION): Define. * sysdeps/s390/s390-64/utf8-utf32-z9.c (ONE_DIRECTION): Define.
2014-07-31S/390: Revert the jmp_buf/ucontext_t ABI change.Stefan Liebler
2014-07-31Fix -Wundef warning for HAVE_IFUNCAndreas Schwab
2014-07-30Improve 64bit memcpy performance for Haswell CPU with AVX instructionLing Ma
In this patch we take advantage of HSW memory bandwidth, manage to reduce miss branch prediction by avoiding using branch instructions and force destination to be aligned with avx instruction. The CPU2006 403.gcc benchmark indicates this patch improves performance from 2% to 10%.
2014-07-30PowerPC: Fix gprof entry point for LEAdhemerval Zanella
This patch fixes the ELFv2 gprof entry point since the ABI does not define function descriptors. It fixes BZ#17213.
2014-07-29fcntl-linux.h: add new definitions and manual updates for open file ↵Jeff Layton
description locks Open file description locks have been merged into the Linux kernel for v3.15. Add the appropriate command-value definitions and an update to the manual that describes their usage.
2014-07-23Update Spanish translationsAllan McRae
2014-07-23Add missing changelog entry for commit ab7ac0f2Allan McRae
2014-07-18m68k: use generic lowlevellock.hAndreas Schwab
2014-07-17[BZ #17078] ARM: R_ARM_TLS_DESC prelinker supportMaciej W. Rozycki
This is a change to the dynamic linker to add prelinker support for the R_ARM_TLS_DESC relocation. Two cases can be considered here, the usual one where lazy binding is in use and the less frequent one, where immediate binding is requested via the use of the DF_BIND_NOW dynamic flag (e.g. by using the GNU linker's "-z now" option). This change only handles the first case. In this scenario the prelinker does what the dynamic linker would do, that is it preinitialises R_ARM_TLS_DESC relocations with a pointer to the lazy specialization as provided with the DT_TLSDESC_PLT dynamic tag. A conflict is additionally created and in the conflict resolution path the dynamic linker complements the work by initialising the object's pointer as indicated by the DT_TLSDESC_GOT dynamic tag to the linker's internal lazy specialization worker function and also providing the associated link map in the second entry of the GOT. This step is required, because if prelinking is successful at the run time, then the dynamic linker's elf_machine_runtime_setup() function isn't called that would normally do so. The second case remains unresolved, because support for that scenario has not been implemented in the prelinker. In this case the lazy specialization is unavailable and the DT_TLSDESC_PLT dynamic tag is not present. The prelinker could assume the common case of static specialization and resolve the relocation, but that would require the exposure of dynamic linker's specialization worker function. Furthermore the dynamic linker would have to handle the relocation in the conflict resolution path and see if the dynamic specialization should be used instead. This however would require access to data structures currently not made available to the conflict resolution path and therefore a redesign of this part of the dynamic linker. Alternatively the prelinker could defer all processing to the dynamic linker's conflict resolution path, but that would require similar access to the said data structures. Therefore the prelinker issues an error instead and the dynamic linker has assertions to check that DT_TLSDESC_PLT and DT_TLSDESC_GOT are in use in its conflict resolution path. This change resolves all TLS failures in the prelinker testsuite, as noted in the bug report, as well as the small test case provided there. Unfortunately we don't seem to have any hooks to factor in the prelinker (if present on a system) to testing, so at this time this fix has to rely on using the prelinker test suite and enabling TLS descriptors there for coverage. [BZ #17078] * sysdeps/arm/dl-machine.h (elf_machine_rela) [RESOLVE_CONFLICT_FIND_MAP]: Handle R_ARM_TLS_DESC relocation. (elf_machine_lazy_rel): Handle prelinked R_ARM_TLS_DESC entries.
2014-07-17Fix fallback fesetenv and feupdateenv on FE_NOMASK_ENV (bug 17088).Joseph Myers
This patch fixes bug 17088, fallback fesetenv and feupdateenv not giving an error for an FE_NOMASK_ENV argument when it requires traps to be enabled. (This is the bug tested for by test-fenv-return.c.) Tested mips64 soft-float. [BZ #17088] * math/fesetenv.c (__fesetenv) [FE_NOMASK_ENV && FE_ALL_EXCEPT != 0]: Return 1 for FE_NOMASK_ENV. * math/feupdateenv.c (__feupdateenv) [FE_NOMASK_ENV && FE_ALL_EXCEPT != 0]: Likewise.
2014-07-17[PATCH 6/6] Split s390 out of main Linux kernel-features.h.Joseph Myers
This patch splits s390 out of the main Linux kernel-features.h. Not tested. * sysdeps/unix/sysv/linux/s390/kernel-features.h: New file. * sysdeps/unix/sysv/linux/kernel-features.h [__s390__] (__ASSUME_SOCKETCALL): Do not define.
2014-07-17[PATCH 5/6] Split sh out of main Linux kernel-features.h.Joseph Myers
This patch splits sh out of the main Linux kernel-features.h. Not tested. * sysdeps/unix/sysv/linux/sh/kernel-features.h: New file. * sysdeps/unix/sysv/linux/kernel-features.h [__sh__] (__ASSUME_SOCKETCALL): Do not define. (__ASSUME_ST_INO_64_BIT): Define unconditionally. [__LINUX_KERNEL_VERSION >= 0x020625 && __sh__] (__ASSUME_ACCEPT4_SYSCALL): Do not define. [__LINUX_KERNEL_VERSION >= 0x020625 && __sh__] (__ASSUME_RECVMMSG_SYSCALL): Likewise. [__LINUX_KERNEL_VERSION >= 0x030000 && __sh__] (__ASSUME_SENDMMSG_SYSCALL): Likewise. [__sh__] (__ASSUME_SENDMMSG_SYSCALL_WITH_SOCKETCALL): Likewise.
2014-07-17[PATCH 4/6] Split powerpc out of main Linux kernel-features.h.Joseph Myers
This patch splits powerpc out of the main Linux kernel-features.h. Not tested. * sysdeps/unix/sysv/linux/powerpc/kernel-features.h: New file. * sysdeps/unix/sysv/linux/kernel-features.h [__powerpc__] (__ASSUME_SOCKETCALL): Do not define. (__ASSUME_IPC64): Define unconditionally. [__LINUX_KERNEL_VERSION >= 0x020625 && __powerpc__] (__ASSUME_ACCEPT4_SYSCALL): Do not define. [__LINUX_KERNEL_VERSION >= 0x020625 && __powerpc__] (__ASSUME_RECVMMSG_SYSCALL): Likewise. [__LINUX_KERNEL_VERSION >= 0x030000 && __powerpc__] (__ASSUME_SENDMMSG_SYSCALL): Likewise. [__powerpc__] (__ASSUME_SENDMMSG_SYSCALL_WITH_SOCKETCALL): Likewise.
2014-07-17[PATCH 3/6] Split sparc out of main Linux kernel-features.h.Joseph Myers
This patch splits sparc out of the main Linux kernel-features.h. Not tested. * sysdeps/unix/sysv/linux/sparc/kernel-features.h: New file. * sysdeps/unix/sysv/linux/kernel-features.h [__sparc__] (__ASSUME_SOCKETCALL): Do not define. (__ASSUME_SET_ROBUST_LIST): Define unconditionally. (__ASSUME_FUTEX_LOCK_PI): Likewise. [__sparc__] (__ASSUME_ACCEPT4_SYSCALL): Do not define. [__sparc__] (__ASSUME_ACCEPT4_SYSCALL_WITH_SOCKETCALL): Likewise. (__ASSUME_REQUEUE_PI): Define unconditionally. [__LINUX_KERNEL_VERSION >= 0x020621 && __sparc__] (__ASSUME_RECVMMSG_SYSCALL): Do not define. [__sparc__] (__ASSUME_RECVMMSG_SYSCALL_WITH_SOCKETCALL): Likewise. [__LINUX_KERNEL_VERSION >= 0x030000 && __sparc__] (__ASSUME_SENDMMSG_SYSCALL): Likewise. [__sparc__] (__ASSUME_SENDMMSG_SYSCALL_WITH_SOCKETCALL): Likewise.
2014-07-17[PATCH 2/6] Split i386 out of main Linux kernel-features.h.Joseph Myers
This patch splits i386 out of the main Linux kernel-features.h. Tested x86 that there are no changes to disassembly of installed shared libraries. * sysdeps/unix/sysv/linux/i386/kernel-features.h: New file. * sysdeps/unix/sysv/linux/kernel-features.h [__i386__] (__ASSUME_SOCKETCALL): Do not define. [__LINUX_KERNEL_VERSION >= 0x020621 && __i386__] (__ASSUME_RECVMMSG_SYSCALL): Likewise. [__i386__] (__ASSUME_RECVMMSG_SYSCALL_WITH_SOCKETCALL): Likewise. [__LINUX_KERNEL_VERSION >= 0x030000 && __i386__] (__ASSUME_SENDMMSG_SYSCALL): Likewise. [__i386__] (__ASSUME_SENDMMSG_SYSCALL_WITH_SOCKETCALL): Likewise.
2014-07-17[PATCH 1/6] Split x86_64 out of main Linux kernel-features.h.Joseph Myers
This patch splits x86_64 out of the main Linux kernel-features.h. Tested x86_64 that there are no changes to disassembly of installed shared libraries. * sysdeps/unix/sysv/linux/x86_64/kernel-features.h: New file. * sysdeps/unix/sysv/linux/kernel-features.h [__x86_64__] (__ASSUME_ACCEPT4_SYSCALL): Do not define. [__LINUX_KERNEL_VERSION >= 0x020621 && __x86_64__] (__ASSUME_RECVMMSG_SYSCALL): Likewise. [__LINUX_KERNEL_VERSION >= 0x030000 && __x86_64__] (__ASSUME_SENDMMSG_SYSCALL): Likewise. [__x86_64__ && __LINUX_KERNEL_VERSION >= 0x030100] (__ASSUME_GETCPU_SYSCALL): Likewise.
2014-07-17Refactor handling of /lib64 etc. cases, move out of sysdeps/gnu/configure.ac.Joseph Myers
This patch continues removing architecture-specific cases from non-architecture-specific files by moving the logic to use directories such as /lib64 out of sysdeps/gnu/configure.ac. A new macro LIBC_SLIBDIR_RTLDDIR is created that sysdeps configure scripts can use to declare the library directories to be used; the logic was previously duplicated in configure fragments for aarch64, mips and x32 as well as in sysdeps/gnu/configure.ac. This macro is used directly in sysdeps/gnu/configure.ac only to provide the /lib default (the logic saying that with --prefix=/usr shared libraries go in /lib not /usr/lib); the architecture cases formerly there are moved into various new or existing configure.ac files. The new macro is also used in the various architecture fragments that already had such logic. In the x32 there was previously a configure fragment, but it was a directly written one without a .ac file; now a .ac file is used there instead to generate configure. Tested x86_64 that the installed shared libraries, and the directory structure of the installation, are unchanged by this patch. There is an old bug report - bug 6441 - about library directories changing after reconfiguring. If this is still applicable - and I haven't attempted to confirm it or review the old patch pointed to in that bug - then this patch should reduce the number of places needing changing in any fix. * aclocal.m4 (LIBC_SLIBDIR_RTLDDIR): New macro. * sysdeps/gnu/configure.ac: Use LIBC_SLIBDIR_RTLDDIR. Remove cases for individual architectures. * sysdeps/gnu/configure: Regenerated. * sysdeps/unix/sysv/linux/aarch64/configure.ac: Use LIBC_SLIBDIR_RTLDDIR. * sysdeps/unix/sysv/linux/aarch64/configure: Regenerated. * sysdeps/unix/sysv/linux/mips/configure.ac: Use LIBC_SLIBDIR_RTLDDIR. * sysdeps/unix/sysv/linux/mips/configure: Regenerated. * sysdeps/unix/sysv/linux/powerpc/powerpc64/configure.ac: Use LIBC_SLIBDIR_RTLDDIR. * sysdeps/unix/sysv/linux/powerpc/powerpc64/configure: Regenerated. * sysdeps/unix/sysv/linux/s390/s390-64/configure.ac: New file. * sysdeps/unix/sysv/linux/s390/s390-64/configure: New generated file. * sysdeps/unix/sysv/linux/sparc/sparc64/configure.ac: New file. * sysdeps/unix/sysv/linux/sparc/sparc64/configure: New generated file. * sysdeps/unix/sysv/linux/x86_64/64/configure.ac: New file. * sysdeps/unix/sysv/linux/x86_64/64/configure: New generated file. * sysdeps/unix/sysv/linux/x86_64/x32/configure.ac: New file. * sysdeps/unix/sysv/linux/x86_64/x32/configure: Generate.
2014-07-17Move architecture shlib-versions files to Linux-specific directories.Joseph Myers
Various architectures have files such as sysdeps/<arch>/shlib-versions whose contents are in fact entirely Linux-specific, relating only to the symbol / shared library versions for the port to Linux on that architecture, when any future port to a different OS on that architecture would use the symbol version of the glibc release it goes in, as standard for new ports. This patch moves such files under sysdeps/unix/sysv/linux/, merging in the contents of sysdeps/<arch>/nptl/shlib-versions in the process. The only bits not moved are those relating to libgcc_s versions, which don't appear OS-specific in the same way that glibc's symbol versions so. It deliberately does not change the regular expressions given for matching configurations in each file; some match only Linux although not Linux-specific, or match other OSes although Linux-specific. It is with a view to at least the following further cleanups: * Move architecture-specific content from the toplevel shlib-versions and nptl/shlib-versions into sysdeps shlib-versions files, so eliminating another difference between ex-ports and non-ex-ports architectures. * Likewise, for OS-specific content in shlib-versions files. * At that point, the first field in shlib-versions files (the regular expression matching a configuration triplet) should be redundant, so eliminate that field and leave shlib-versions selection working purely on a sysdeps basis (with limited use of %ifdef in shlib-versions files when needed) rather than having its own separate mechanism to select what configuration information is relevant. * Move the build of gnu/lib-names.h to a similar mechanism to that used for gnu/stubs.h (each library build installing a version of the header specifically for that build), so we can eliminate the duplication of soname information in the makefiles and get it purely from shlib-versions files again. There may be other cleanups possible as well (in particular, I'm not sure that all cases where the same "Earliest symbol set" information is repeated for many different libraries actually should need to repeat it rather than specifying it just once for DEFAULT for the given configuration, and separately specifying any non-default choices of soname). Tested x86_64 that the installed shared libraries are unchanged by this patch. * sysdeps/aarch64/shlib-versions: Move to ... * sysdeps/unix/sysv/linux/aarch64/shlib-versions: ... here. * sysdeps/alpha/shlib-versions: Move to ... * sysdeps/unix/sysv/linux/alpha/shlib-versions: ... here. * sysdeps/arm/shlib-versions: Move to ... * sysdeps/unix/sysv/linux/arm/shlib-versions: ... here. * sysdeps/hppa/shlib-versions: Move all contents except for libgcc_s entry to ... * sysdeps/unix/sysv/linux/hppa/shlib-versions: ... here. Merge in entry from ... * sysdeps/hppa/nptl/shlib-versions: ... here. Remove file. * sysdeps/ia64/shlib-versions: Move to ... * sysdeps/unix/sysv/linux/ia64/shlib-versions: ... here. Merge in entry from ... * sysdeps/ia64/nptl/shlib-versions: ... here. Remove file. * sysdeps/m68k/coldfire/shlib-versions: Move to ... * sysdeps/unix/sysv/linux/m68k/coldfire/shlib-versions: ... here. * sysdeps/microblaze/shlib-versions: Move to ... * sysdeps/unix/sysv/linux/microblaze/shlib-versions: ... here. * sysdeps/mips/shlib-versions: Move to ... * sysdeps/unix/sysv/linux/mips/shlib-versions: ... here. Merge in entry from ... * sysdeps/mips/nptl/shlib-versions: ... here. Remove file. * sysdeps/tile/shlib-versions: Move to ... * sysdeps/unix/sysv/linux/tile/shlib-versions: ... here. * sysdeps/unix/sysv/linux/x86_64/64/shlib-versions: Merge in entry from ... * sysdeps/x86_64/64/shlib-versions: ... here. Remove file. * sysdeps/unix/sysv/linux/x86_64/x32/shlib-versions: Merge in entry from ... * sysdeps/x86_64/x32/shlib-versions: ... here. Remove file.
2014-07-17ARM: Fix compiler warnings from atomic.hWill Newton
__arch_compare_and_exchange_bool_*_int return a boolean so in the dummy implementations for 8, 16 and 64 bits return zero rather than oldval. Zero is used rather than TRUE or FALSE to avoid needing to including any headers for these dummy functions. ChangeLog: 2014-07-17 Will Newton <will.newton@linaro.org> * sysdeps/arm/bits/atomic.h (__arch_compare_and_exchange_bool_8_int): Evaluate to zero. (__arch_compare_and_exchange_bool_16_int): Likewise. (__arch_compare_and_exchange_bool_64_int): Likewise.
2014-07-17iconv/loop.c: Fix -Wundef warning with !_STRING_ARCH_unalignedWill Newton
If code is required to handle the unaligned case then loop.c includes itself and relies on the #undefs at the end of the file to avoid outputting two copies of LOOPFCT and gconv_btowc. However MAX_NEEDED_INPUT is tested with #if so this causes a warning. Reorder the code so that the function definitions are in an #else block to make the behaviour clearer and fix the warning. Verified that code is unchanged on x86_64 and arm. ChangeLog: 2014-07-17 Will Newton <will.newton@linaro.org> * iconv/loop.c: Move definition of LOOPFCT and gconv_btowc into an #else block.
2014-07-16ARM: Clean up EABI-related configuryRoland McGrath
2014-07-15Add generic/stub implementations of pthread_{kill,sigmask,sigqueue}.Roland McGrath
2014-07-15Separate Linuxisms from lowlevellock.h, make a generic oneRoland McGrath
2014-07-15Remove declarations of two nonexistent variables from nptl/pthreadP.h.Roland McGrath
2014-07-14Enable AVX2 optimized memset only if -mavx2 worksH.J. Lu
* config.h.in (HAVE_AVX2_SUPPORT): New #undef. * sysdeps/i386/configure.ac: Set HAVE_AVX2_SUPPORT and config-cflags-avx2. * sysdeps/x86_64/configure.ac: Likewise. * sysdeps/i386/configure: Regenerated. * sysdeps/x86_64/configure: Likewise. * sysdeps/x86_64/multiarch/Makefile (sysdep_routines): Add memset-avx2 only if config-cflags-avx2 is yes. * sysdeps/x86_64/multiarch/ifunc-impl-list.c (__libc_ifunc_impl_list): Tests for memset_chk and memset only if HAVE_AVX2_SUPPORT is defined. * sysdeps/x86_64/multiarch/memset.S: Define multiple versions only if HAVE_AVX2_SUPPORT is defined. * sysdeps/x86_64/multiarch/memset_chk.S: Likewise.
2014-07-14Correct DT_PPC64_NUMAlan Modra
[BZ #17153] * elf/elf.h (DT_PPC64_NUM): Correct value. * NEWS: Add to fixed bug list.
2014-07-13regex: don't deref NULL upon heap allocation failureJim Meyering
* posix/regcomp.c: (parse_dup_op): Handle duplicate_tree failure in one more place. To trigger the segfault, configure grep -with-included-regex, build it, and run these commands: ( ulimit -v 300000; echo a|src/grep -E a+++++++++++++++++++++ )
2014-07-13m68k: update libm test ULPsAndreas Schwab
2014-07-11aarch64: Update libm-test-ulpsRichard Henderson
2014-07-11nptl: Fix abort in case of set*id failure [BZ #17135]Florian Weimer
If a call to the set*id functions fails in a multi-threaded program, the abort introduced in commit 13f7fe35ae2b0ea55dc4b9628763aafdc8bdc30c was triggered. We address by checking that all calls to set*id on all threads give the same result, and only abort if we see success followed by failure (or vice versa).
2014-07-10PowerPC: Fix build due missing lll_robust_trylockAdhemerval Zanella
Commit 887865f remove the lll_robust_trylock definition on all architectures, however for powerpc both __lll_trylock and __lll_cond_trylock were based on lll_robust_trylock definition. This patch restore it with a different name.
2014-07-10ChangeLog fixup for last commit.Roland McGrath
2014-07-10Get rid of lll_robust_dead.Roland McGrath
2014-07-10Get rid of lll_robust_trylock.Roland McGrath
2014-07-10manual: Update the locale documentationFlorian Weimer
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