about summary refs log tree commit diff
path: root/sysdeps
Commit message (Collapse)AuthorAgeFilesLines
* Fix missing <math_private.h> in ldbl-96 fmaAndreas Schwab2014-08-041-0/+1
|
* Remove sysdeps/unix/sysv/linux/arm/lowlevellock.hRoland McGrath2014-08-011-307/+0
|
* Force eval for fma implementationsRichard Henderson2014-08-014-20/+24
|
* ARM: Move PTR_MANGLE et al out of Linux-specific file.Roland McGrath2014-08-012-44/+48
|
* Add __safe_fatal and use it in __pthread_unwind forwarder fallback.Roland McGrath2014-07-312-0/+70
|
* Use __builtin_trap for ABORT_INSTRUCTION.Roland McGrath2014-07-311-1/+30
|
* Split nptl-signals.h out from pthreadP.hRoland McGrath2014-07-312-0/+55
|
* [PATCH] S390: Fix remaining ONE_DIRECTION warning messagesStefan Liebler2014-07-313-0/+3
| | | | | | | | | | | | | | 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.
* S/390: Revert the jmp_buf/ucontext_t ABI change.Stefan Liebler2014-07-3135-795/+189
|
* Improve 64bit memcpy performance for Haswell CPU with AVX instructionLing Ma2014-07-3011-6/+458
| | | | | | | | | 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%.
* PowerPC: Fix gprof entry point for LEAdhemerval Zanella2014-07-301-0/+2
| | | | | This patch fixes the ELFv2 gprof entry point since the ABI does not define function descriptors. It fixes BZ#17213.
* fcntl-linux.h: add new definitions and manual updates for open file ↵Jeff Layton2014-07-291-0/+17
| | | | | | | | 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.
* Revert "aarch64: Add hp-timing.h"Marcus Shawcroft2014-07-221-38/+0
| | | | | | | This reverts commit 4052993954d1dcb39cbd478ab59e75fe12903e9c. Conflicts: sysdeps/aarch64/hp-timing.h
* m68k: use generic lowlevellock.hAndreas Schwab2014-07-181-308/+0
|
* [BZ #17078] ARM: R_ARM_TLS_DESC prelinker supportMaciej W. Rozycki2014-07-171-3/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* [PATCH 6/6] Split s390 out of main Linux kernel-features.h.Joseph Myers2014-07-172-3/+23
| | | | | | | | | | 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.
* [PATCH 5/6] Split sh out of main Linux kernel-features.h.Joseph Myers2014-07-172-25/+44
| | | | | | | | | | | | | | | | | | 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.
* [PATCH 4/6] Split powerpc out of main Linux kernel-features.h.Joseph Myers2014-07-172-13/+48
| | | | | | | | | | | | | | | | | | | 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.
* [PATCH 3/6] Split sparc out of main Linux kernel-features.h.Joseph Myers2014-07-172-27/+57
| | | | | | | | | | | | | | | | | | | | | 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.
* [PATCH 2/6] Split i386 out of main Linux kernel-features.h.Joseph Myers2014-07-172-7/+40
| | | | | | | | | | | | | | | | | 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.
* [PATCH 1/6] Split x86_64 out of main Linux kernel-features.h.Joseph Myers2014-07-172-9/+42
| | | | | | | | | | | | | | | | | 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.
* Refactor handling of /lib64 etc. cases, move out of sysdeps/gnu/configure.ac.Joseph Myers2014-07-1716-132/+149
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* Move architecture shlib-versions files to Linux-specific directories.Joseph Myers2014-07-1717-17/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* ARM: Fix compiler warnings from atomic.hWill Newton2014-07-171-3/+3
| | | | | | | | | | | | | | | | __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.
* ARM: Clean up EABI-related configuryRoland McGrath2014-07-166-53/+62
|
* Separate Linuxisms from lowlevellock.h, make a generic oneRoland McGrath2014-07-153-0/+410
|
* Enable AVX2 optimized memset only if -mavx2 worksH.J. Lu2014-07-148-14/+91
| | | | | | | | | | | | | | | | | * 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.
* m68k: update libm test ULPsAndreas Schwab2014-07-131-16/+88
|
* aarch64: Update libm-test-ulpsRichard Henderson2014-07-111-6/+120
|
* PowerPC: Fix build due missing lll_robust_trylockAdhemerval Zanella2014-07-101-2/+17
| | | | | | | 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.
* Get rid of lll_robust_dead.Roland McGrath2014-07-1015-157/+0
|
* Get rid of lll_robust_trylock.Roland McGrath2014-07-1015-137/+0
|
* Fix crash when system has no ipv6 address [BZ #17125]Siddhesh Poyarekar2014-07-101-1/+7
| | | | | | | | | | | Here's an updated patch to fix the crash in bug-ga2 when the system has no configured ipv6 address. I have taken a different approach of using libc_freeres_fn instead of the libc_freeres_ptr since the former gives better control over what is freed; we need that since cache may or may not be allocated using malloc. Verified that bug-ga2 works correctly in both cases and does not have memory leaks in either of them.
* Get rid of sparc specific NPTL internaltypes.h header.David S. Miller2014-07-0912-8/+12
| | | | | | | | | | | | | | | | * sysdeps/sparc/nptl/internaltypes.h: Delete. * sysdeps/sparc/nptl/sparc-nptl.h: New file. * sysdeps/sparc/nptl/pthread_barrier_destroy.c: Include it. * sysdeps/sparc/nptl/pthread_barrier_init.c: Likewise. * sysdeps/sparc/nptl/pthread_barrier_wait.c: Likewise. * sysdeps/sparc/nptl/sem_init.c: Likewise. * sysdeps/sparc/nptl/sem_post.c: Likewise. * sysdeps/sparc/nptl/sem_timedwait.c: Likewise. * sysdeps/sparc/nptl/sem_wait.c: Likewise. * sysdeps/sparc/sparc32/nptl/pthread_barrier_wait.c: Likewise. * sysdeps/sparc/sparc32/nptl/sem_post.c: Likewise. * sysdeps/sparc/sparc32/nptl/sem_timedwait.c: Likewise. * sysdeps/sparc/sparc32/nptl/sem_wait.c: Likewise.
* Update sparc ULPS.David S. Miller2014-07-091-6/+96
| | | | * sysdeps/sparc/fpu/libm-test-ulps: Update.
* Fix missing newline in test outputAndreas Schwab2014-07-092-2/+2
|
* Update i386 libm test ULPsAndreas Schwab2014-07-091-8/+32
|
* Fix -Wundef warnings for SHAREDWill Newton2014-07-095-5/+5
| | | | | | | | | | | | | | | | | The definition of SHARED is tested with #ifdef pretty much everywhere apart from these few places. The tlsdesc.c code seems to be copy and pasted to a few architectures and there is one instance in the hppa startup code. ChangeLog: 2014-07-09 Will Newton <will.newton@linaro.org> * sysdeps/aarch64/tlsdesc.c (_dl_unmap): Test SHARED with #ifdef. * sysdeps/arm/tlsdesc.c (_dl_unmap): Likewise. * sysdeps/i386/tlsdesc.c (_dl_unmap): Likewise. * sysdeps/x86_64/tlsdesc.c (_dl_unmap): Likewise. * sysdeps/hppa/start.S (_start): Likewise.
* Fix Wundef warning for __cplusplusSiddhesh Poyarekar2014-07-091-1/+1
| | | | | All current uses of the __cplusplus macro only check if it is defined or not. Fix this #if to use $ifdef like the rest of the code.
* Fix Wundef warning for ELF_MACHINE_NO_REL on i386Siddhesh Poyarekar2014-07-081-0/+1
|
* PowerPC: Cleanup powerpc memmoveAdhemerval Zanella2014-07-085-25/+5
| | | | | | | Now that MEMCPY_OK_FOR_FWD_MEMMOVE should be define on memcopy.h there is no need to specialized powerpc memmove implementation. This patch moves the define set to powerpc memcopy and cleanup its definition on powerpc code.
* PowerPC: Fix compiler warningsAdhemerval Zanella2014-07-083-3/+5
| | | | | This patch fixes some compiler due trailing data in #undef directives and due missing prototypes.
* PowerPC: Add ifunc tests for memmoveAdhemerval Zanella2014-07-081-0/+6
| | | | | This patch add the missing ifunc tests definition for memmove ppc32 optimization patch (commit 07aedd7).
* PowerPC: Align power7 memcpy using VSX to quadwordAdhemerval Zanella2014-07-072-20/+6
| | | | | | This patch changes power7 memcpy to use VSX instructions only when memory is aligned to quardword. It is to avoid unaligned kernel traps on non-cacheable memory (for instance, memory-mapped I/O).
* PowerPC: optimized memmove for POWER7/PPC32Adhemerval Zanella2014-07-074-1/+100
| | | | | This patch adds a optimized memmove for power7 by using the optimized power7 memcpy for forward copying.
* PowerPC: optimized memmove for POWER7/PPC64Adhemerval Zanella2014-07-079-1/+1016
| | | | | | | | | | | This patch adds an optimized memmove optimization for POWER7/powerpc64. Basically the idea is to use the memcpy for POWER7 on non-overlapped memory regions and a optimized backward memcpy for memory regions that overlap (similar to the idea of string/memmove.c). The backward memcpy algorithm used is similar the one use for memcpy for POWER7, with adjustments done for alignment. The difference is memory is always aligned to 16 bytes before using VSX/altivec instructions.
* PowerPC: memmove default implementation cleanupAdhemerval Zanella2014-07-071-97/+2
| | | | | | | | This patch removes the powerpc specific logic in memmove and instead include default implementation with MEMCPY_OK_FOR_FWD_MEMMOVE defined. This lead in a increase performance, since the constraints to use memcpy in powerpc code are too restrictive and memcpy can be used for any forward memmove.
* PowerPC: Guard CALL_ELF check for ppc64 only in link.hAdhemerval Zanella2014-07-071-2/+4
| | | | | This patch fixes powerpc32 undef compiler warnings for _CALL_ELF, since it is defined only for powerpc64.
* Remove old stub lowlevellock.h file. It is not even useful as documentation.Roland McGrath2014-07-071-83/+0
|
* NPTL is no longer an add-on!Roland McGrath2014-07-0727-60/+217
|
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-11-07 18:17:29 +0000