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2014-06-20Move linux bits/ files out of nptl/.Roland McGrath
2014-06-21Remove ARM __ASSUME_SIGFRAME_V2.Joseph Myers
This patch removes ARM __ASSUME_SIGFRAME_V2 now that the 2.6.18-and-later signal frame layout can be assumed, renaming the affected functions accordingly now only one version of them is needed in glibc. (sigrestorer.S did not in fact include <kernel-features.h> and it appears that, unlike other such cases, it didn't get the header indirectly, so the v1 functions would have been compiled in even when sigaction.c didn't reference them.) (alpha and hppa also have architecture-specific __ASSUME_* macros that should now be removed: __ASSUME_FDATASYNC and __ASSUME_LWS_CAS respectively. I don't have any plans to do anything on that myself.) Tested on ARM. * sysdeps/unix/sysv/linux/arm/kernel-features.h (__ASSUME_SIGFRAME_V2): Remove macro. * sysdeps/unix/sysv/linux/arm/sigrestorer.S: Update comment. [!__ASSUME_SIGFRAME_V2]: Remove conditional code. (__default_sa_restorer_v2): Rename to __default_sa_restorer. (__default_rt_sa_restorer_v2): Rename to __default_rt_sa_restorer. * sysdeps/unix/sysv/linux/arm/sigaction.c (__default_sa_restorer): Declare as function. Remove conditional macro definitions. (__default_rt_sa_restorer): Likewise. (__default_sa_restorer_v1): Remove declaration. (__default_sa_restorer_v2): Likewise. (__default_rt_sa_restorer_v1): Likewise. (__default_rt_sa_restorer_v2): Likewise. * sysdeps/unix/sysv/linux/arm/Versions (GLIBC_PRIVATE): Remove __default_sa_restorer_v1, __default_rt_sa_restorer_v1, __default_sa_restorer_v2 and __default_rt_sa_restorer_v2.
2014-06-20Missing new file from last commit.Roland McGrath
2014-06-20Move remaining SPARC code out of nptl/.Roland McGrath
2014-06-20Include <kernel-features.h> explicitly where required.Joseph Myers
This patch makes files using __ASSUME_* macros include <kernel-features.h> explicitly, rather than relying on some other header (such as tls.h, lowlevellock.h or pthreadP.h) to include it implicitly. (I omitted cases where I've already posted or am testing the patch that stops the file from needing __ASSUME_* at all.) This accords with the general principle of making source files include the headers for anything they use, and also helps make it safe to remove <kernel-features.h> includes from any file that doesn't use __ASSUME_* (some of those may be stray includes left behind after increasing the minimum kernel version, others may never have been needed or may have become obsolete after some other change). Tested x86_64 that the disassembly of installed shared libraries is unchanged by this patch. * nptl/pthread_cond_wait.c: Include <kernel-features.h>. * nptl/pthread_rwlock_timedrdlock.c: Likewise. * nptl/pthread_rwlock_timedwrlock.c: Likewise. * nptl/sysdeps/unix/sysv/linux/lowlevelrobustlock.c: Likewise. * nscd/nscd.c: Likewise. * sysdeps/i386/nptl/tcb-offsets.sym: Likewise. * sysdeps/powerpc/nptl/tcb-offsets.sym: Likewise. * sysdeps/sh/nptl/tcb-offsets.sym: Likewise. * sysdeps/x86_64/nptl/tcb-offsets.sym: Likewise.
2014-06-20Remove __ASSUME_SOCK_CLOEXEC / SOCK_CLOEXEC conditionals in Linux-specific code.Joseph Myers
This patch removes conditionals on __ASSUME_SOCK_CLOEXEC, and on SOCK_CLOEXEC being defined, in Linux-specific code, now that all supported Linux kernel versions can be assumed to have this functionality. (The macro is also used in OS-independent code and is not defined for Hurd.) Tested x86_64 that the disassembly of installed shared libraries is unchanged by this patch. * nptl/sysdeps/unix/sysv/linux/mq_notify.c: Do not include <kernel-features.h>. (init_mq_netlink): Remove conditional have_sock_cloexec definitions. Remove code conditional on have_sock_cloexec < 0. (init_mq_netlink) [!SOCK_CLOEXEC]: Remove conditional code. (init_mq_netlink) [!__ASSUME_SOCK_CLOEXEC]: Likewise. * sysdeps/unix/sysv/linux/opensock.c: Do not include <kernel-features.h>. (__opensock) [SOCK_CLOEXEC]: Make code unconditional. (__opensock) [!__ASSUME_SOCK_CLOEXEC]: Remove conditional code.
2014-06-20Add ifunc tests for x86_64 memset_chk and memsetH.J. Lu
This patch adds ifunc tests for x86_64 memset_chk and memset. It also defines HAS_AVX2 with AVX2_Usable since AVX2 may not be usable even if processor has AVX2. * sysdeps/x86_64/multiarch/ifunc-impl-list.c (__libc_ifunc_impl_list): Add tests for memset_chk and memset. * sysdeps/x86_64/multiarch/init-arch.h (HAS_AVX2): Defined with AVX2_Usable.
2014-06-20[BZ #16046] dl_iterate_phdr static executable testMaciej W. Rozycki
2014-06-20stdlib/tst-qsort2.c: Fix off-by-one argc interpretation errorMaciej W. Rozycki
This fixes an off-by-one argc interpretation error (argv[0] is included in the count) in stdlib/tst-qsort2.c causing a segfault if the program is called with one command-line argument only (argv[2] is NULL in that case).
2014-06-20Remove __ASSUME_F_GETOWN_EX.Joseph Myers
This patch removes __ASSUME_F_GETOWN_EX now it can be assumed to be true unconditionally. Tested x86_64 that disassembly of installed shared libraries is unchanged by this patch. * sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_F_GETOWN_EX): Remove macro. * sysdeps/unix/sysv/linux/fcntl.c: Do not include <kernel-features.h>. (miss_F_GETOWN_EX): Remove variable or macro. (do_fcntl): Do not check miss_F_GETOWN_EX. (do_fcntl) [!__ASSUME_F_GETOWN_EX]: Remove conditional code.
2014-06-20Remove __ASSUME_AT_RANDOM.Joseph Myers
This patch removes __ASSUME_AT_RANDOM now it can be assumed to be true unconditionally. Tested x86_64 that the disassembly of installed shared libraries is unchanged by this patch. * sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_AT_RANDOM): Remove macro. * sysdeps/unix/sysv/linux/dl-osinfo.h (_dl_setup_stack_chk_guard) [!__ASSUME_AT_RANDOM]: Remove conditional code. (_dl_setup_pointer_guard) [!__ASSUME_AT_RANDOM]: Likewise.
2014-06-20Remove __ASSUME_ADJ_OFFSET_SS_READ.Joseph Myers
This patch removes the __ASSUME_ADJ_OFFSET_SS_READ macro (and conditionals on whether ADJ_OFFSET_SS_READ is defined), now it can be unconditionally assumed to be true and ADJ_OFFSET_SS_READ can be assumed to be defined. Tested x86_64 that the disassembly of installed shared libraries is unchanged by this patch. * sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_ADJ_OFFSET_SS_READ): Remove macro. * sysdeps/unix/sysv/linux/adjtime.c (ADJTIME) [ADJ_OFFSET_SS_READ]: Make code unconditional. (ADJTIME) [!ADJ_OFFSET_SS_READ]: Remove conditional code.
2014-06-20[BZ #17075] ARM: Fix immediate calculation of R_ARM_TLS_DESCMaciej W. Rozycki
This fixes the calculation of R_ARM_TLS_DESC relocations for lazy global symbol references, i.e. created with `-z lazy' in effect with the static linker, where immediate resolution is requested with LD_BIND_NOW.
2014-06-20Remove __ASSUME_ATFCTS conditionals in sysdeps/unix/sysv/linux/.Joseph Myers
This patch cleans up for __ASSUME_ATFCTS now always being true for the supported Linux kernel versions by removing conditional code in sysdeps/unix/sysv/linux. Several fchownat.c files that were only present because of differences in the fallback syscalls used (depending on the architecture-specific names of chown-related syscalls for 32-bit uids) are removed. Files that looks like they could be replaced by syscalls.list entries have the standard "Consider moving to syscalls.list." comment (see bug 14138) added. Conditionals on the relevant __NR_* syscall numbers being defined are also removed, since my analysis indicated that the relevant syscalls are always defined for all relevant kernel versions using any affected file. Much of the removed fallback code had unbounded stack allocations, so this reduces the number of cases to consider for anyone reviewing uses of alloca and VLAs in glibc. There remain tests of __ASSUME_ATFCTS in io/openat.c (to determine whether to define __have_atfcts) and sysdeps/posix/getcwd.c (which also uses __have_atfcts); thus, the definition of __ASSUME_ATFCTS remains in kernel-features.h. The logical condition relevant there is whether openat64_not_cancel_3 is known to work. Hurd doesn't use this version of getcwd at all, so the conditionals in getcwd.c are always true in glibc. However, this code is also used in gnulib. So the best way to deal with the conditionals there may be for gnulib people to deal with merging all relevant changes in both directions between the glibc and gnulib versions of this file, at the end of which the openat conditionals should be in whatever form is best for gnulib, and hardcoded in the _LIBC case to having openat supported. Tested by comparing before-and-after disassembly of installed (stripped) shared libraries, on x86_64 and x86. On x86 the patch made no change to the disassembly; on x86_64, the only changes were in readlinkat, where formerly the return value from the readlinkat syscall was stored in an int variable before being converted to ssize_t for the return, and now the return value is returned directly without truncation to int. I think it's clearly correct not to truncate the return value (although I also think the truncation would not have been a user-visible bug because the kernel would never have returned a value it could have affected). * include/fcntl.h (__atfct_seterrno): Remove prototype. (__atfct_seterrno_2): Likewise. * sysdeps/unix/sysv/linux/alpha/dl-fxstatat64.c: Do not include <kernel-features.h>. (__ASSUME_ATFCTS): Do not undefine and redefine. * sysdeps/unix/sysv/linux/alpha/fxstatat.c [__ASSUME_ATFCTS] (__have_atfcts): Remove conditional definition. (__fxstatat([__NR_fstatat64]: Make code unconditional. (__fxstatat) [!__ASSUME_ATFCTS]: Remove conditional code and code unreachable if [__ASSUME_ATFCTS]. * sysdeps/unix/sysv/linux/dl-fxstatat64.c (__ASSUME_ATFCTS): Do not undefine and redefine. * sysdeps/unix/sysv/linux/faccessat.c: Do not include <kernel-features.h>. (faccessat) [__NR_faccessat]: Make code unconditional. (faccessat) [!__ASSUME_ATFCTS]: Remove conditional code. * sysdeps/unix/sysv/linux/fchmodat.c: Do not include <kernel-features.h>. (fchmodat) [__NR_fchmodat]: Make code unconditional. (fchmodat) [!__ASSUME_ATFCTS]: Remove conditional code. * sysdeps/unix/sysv/linux/fchownat.c: Do not include <kernel-features.h>. (fchownat) [__NR_fchownat]: Make code unconditional. (fchownat) [!__ASSUME_ATFCTS]: Remove conditional code. * sysdeps/unix/sysv/linux/futimesat.c: Do not include <kernel-features.h>. (futimesat) [__NR_futimesat]: Make code unconditional. (futimesat) [!__ASSUME_ATFCTS]: Remove conditional code. * sysdeps/unix/sysv/linux/fxstatat.c: Do not include <kernel-features.h>. (__fxstatat) [__NR_newfstatat]: Make code unconditional. (__fxstatat) [!__ASSUME_ATFCTS]: Remove conditional code. * sysdeps/unix/sysv/linux/fxstatat64.c: Do not include <kernel-features.h>. (__fxstatat64) [__NR_fstatat64]: Make code unconditional. (__fxstatat64) [!__ASSUME_ATFCTS]: Remove conditional code. * sysdeps/unix/sysv/linux/i386/fchownat.c: Remove file. * sysdeps/unix/sysv/linux/i386/fxstatat.c: Do not include <kernel-features.h>. (__fxstatat) [__NR_fstatat64]: Make code unconditional. (__fxstatat) [!__ASSUME_ATFCTS]: Remove conditional code. * sysdeps/unix/sysv/linux/linkat.c: Do not include <kernel-features.h>. (linkat) [__NR_linkat]: Make code unconditional. (linkat) [!__ASSUME_ATFCTS]: Remove conditional code. * sysdeps/unix/sysv/linux/m68k/fchownat.c: Remove file. * sysdeps/unix/sysv/linux/mips/mips64/fxstatat64.c: Do not include <kernel-features.h>. (__fxstatat64) [__NR_newfstatat]: Make code unconditional. (__fxstatat64) [!__ASSUME_ATFCTS]: Remove conditional code. * sysdeps/unix/sysv/linux/mkdirat.c: Do not include <kernel-features.h>. (mkdirat) [__NR_mkdirat]: Make code unconditional. (mkdirat) [!__ASSUME_ATFCTS]: Remove conditional code. * sysdeps/unix/sysv/linux/openat.c: Do not include <kernel-features.h>. [!__ASSUME_ATFCTS] (__atfct_seterrno): Remove function. [!__ASSUME_ATFCTS] (__have_atfcts): Remove variable. (OPENAT_NOT_CANCEL) [__NR_openat]: Make code unconditional. (OPENAT_NOT_CANCEL) [!__ASSUME_ATFCTS]: Remove conditional code. * sysdeps/unix/sysv/linux/powerpc/fchownat.c: Remove file. * sysdeps/unix/sysv/linux/readlinkat.c: Do not include <kernel-features.h>. (readlinkat) [__NR_readlinkat]: Make code unconditional. (readlinkat) [!__ASSUME_ATFCTS]: Remove conditional code. Return result of INLINE_SYSCALL directly, not via int variable. * sysdeps/unix/sysv/linux/renameat.c: Do not include <kernel-features.h>. [!__ASSUME_ATFCTS] (__atfct_seterrno_2): Remove function. (renameat) [__NR_renameat]: Make code unconditional. (renameat) [!__ASSUME_ATFCTS]: Remove conditional code. * sysdeps/unix/sysv/linux/s390/s390-32/fchownat.c: Remove file. * sysdeps/unix/sysv/linux/sh/fchownat.c: Remove file. * sysdeps/unix/sysv/linux/sparc/sparc32/fchownat.c: Remove file. * sysdeps/unix/sysv/linux/sparc/sparc64/dl-fxstatat64.c (__ASSUME_ATFCTS): Do not undefine and redefine. * sysdeps/unix/sysv/linux/symlinkat.c: Do not include <kernel-features.h>. (symlinkat) [__NR_symlinkat]: Make code unconditional. (symlinkat) [!__ASSUME_ATFCTS]: Remove conditional code. * sysdeps/unix/sysv/linux/unlinkat.c: Do not include <kernel-features.h>. (unlinkat) [__NR_unlinkat]: Make code unconditional. (unlinkat) [!__ASSUME_ATFCTS]: Remove conditional code. * sysdeps/unix/sysv/linux/wordsize-64/dl-fxstatat64.c (__ASSUME_ATFCTS): Do not undefine and redefine. * sysdeps/unix/sysv/linux/wordsize-64/fxstatat.c: Do not include <kernel-features.h>. (__fxstatat) [__NR_newfstatat]: Make code unconditional. (__fxstatat) [!__ASSUME_ATFCTS]: Remove conditional code. * sysdeps/unix/sysv/linux/xmknodat.c: Do not include <kernel-features.h>. (__xmknodat) [__NR_mknodat]: Make code unconditional. (__xmknodat) [!__ASSUME_ATFCTS]: Remove conditional code.
2014-06-20Remove sysdeps/x86_64/multiarch/rtld-strlen.SH.J. Lu
Since there is no sysdeps/x86_64/multiarch/strlen.S, sysdeps/x86_64/rtld-strlen.S will be used. * sysdeps/x86_64/multiarch/rtld-strlen.S: Removed.
2014-06-20Fix another memory leak in regexp compiler (BZ #17069)Andreas Schwab
2014-06-20Fix ChangeLog and NEWS goof-upSiddhesh Poyarekar
The ChangeLog belonged to localedata and the bug is not completely fixed, so it didn't deserve to enter the NEWS yet.
2014-06-20[BZ #6803] Set errno for scalbln, scalbnStefan Liebler
Errno is not set and the testcases will fail. Now the scalbln-aliases are removed in i386/m68 and the wrappers are used when calling the scalbln-functions. On ia64 only scalblnf has its own implementation. For scalbln and scalblnl the ieee754/dbl-64 and ieee754/ldbl-96 are used, thus the wrappers are needed, too.
2014-06-20Generate en_GB.UTF-8 during testingStefan Liebler
This patch generates en_GB.UTF-8, which is used in tst-strcoll-overflow. This solves the issue of failing xtests on s390/s390x.
2014-06-19Use 3 bytes for __pad1 in pthread_rwlock_t for x32H.J. Lu
Since long is 4 bytes for x32, we should use 3 bytes for __pad1 when a long __pad1 is replaced by a byte __rwelision and __pad1. * sysdeps/x86/nptl/bits/pthreadtypes.h (pthread_rwlock_t): Use 3 bytes for __pad1 for x32. (__PTHREAD_RWLOCK_ELISION_EXTRA): Likewise.
2014-06-19Add x86_64 memset optimized for AVX2Ling 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 & avx2 instruction. The CPU2006 403.gcc benchmark indicates this patch improves performance from 26% to 59%. * sysdeps/x86_64/multiarch/Makefile: Add memset-avx2. * sysdeps/x86_64/multiarch/memset-avx2.S: New file. * sysdeps/x86_64/multiarch/memset.S: Likewise. * sysdeps/x86_64/multiarch/memset_chk.S: Likewise. * sysdeps/x86_64/multiarch/rtld-memset.S: Likewise.
2014-06-19Fix memory leak in regexp compiler (BZ #17069)Andreas Schwab
2014-06-19malloc/malloc.c: Avoid calling sbrk unnecessarily with zeroWill Newton
Due to my bad review suggestion for the fix for BZ #15089 a check was removed from systrim to prevent sbrk being called with a zero argument. Add the check back to avoid this useless work. ChangeLog: 2014-06-19 Will Newton <will.newton@linaro.org> * malloc/malloc.c (systrim): If extra is zero then return early.
2014-06-19Remove unnecessary $(.)Siddhesh Poyarekar
The variable is not necessary, especially since it does not exist.
2014-06-19[AArch64] Add optimized strchr.Richard Earnshaw
Implementation of strchr for AArch64. Speedups taken from micro-bench show the improvements relative to the standard C code. The use of LD1 means we have identical code for both big- and little-endian systems.
2014-06-18Fix __ieee754_logl (-LDBL_MAX) in FE_DOWNWARD mode (bug 17022).Joseph Myers
This patch fixes __ieee754_logl (-LDBL_MAX) on x86_64 and x86 not to subtract 1 from its argument and so cause spurious overflow in FE_DOWNWARD mode. (For any argument strictly less than -1, it doesn't matter whether or not 1 is subtracted before computing log1p, as long as the result doesn't overflow to -Inf.) Tested x86_64 and x86. (This particular case lacks test coverage, since the testsuite doesn't cover -lieee, but it will be covered by tests after the following patch to test pow in all rounding modes, which was the context in which this bug was found.) [BZ #17022] * sysdeps/i386/fpu/e_logl.S (__ieee754_logl): Do not subtract 1 from arguments -2 or below. * sysdeps/i386/i686/fpu/e_logl.S (__ieee754_logl): Likewise. * sysdeps/x86_64/fpu/e_logl.S (__ieee754_logl): Likewise.
2014-06-18Don't read past end of pattern in fnmatch (BZ #17062)Andreas Schwab
2014-06-18Use $(rtld-prefix) more consistently.Joseph Myers
The glibc makefiles have a standard variable, $(rtld-prefix), to run the dynamic linker with a default --library-path option; this is used as the basis of lots of other variables for running programs compiled with the newly built library. A few places however use $(elf-objpfx)ld.so or $(elf-objpfx)${rtld-installed-name} directly, with such a --library-path option. This patch makes such places use $(rtld-prefix) instead. I'm not aware of any significance in these cases to the choice of ld.so or ${rtld-installed-name} when running the dynamic linker, or to whether $(patsubst %,:%,$(sysdep-library-path)) is included in the library-path as it is in $(rtld-prefix) and just one of the places being changed. Tested x86_64. * elf/Makefile ($(objpfx)tst-unused-dep.out): Use $(rtld-prefix). * iconvdata/Makefile ($(inst_gconvdir)/gconv-modules) [$(cross-compiling) = no]: Likewise. * sysdeps/s390/s390-64/Makefile ($(inst_gconvdir)/gconv-modules) [$(cross-compiling) = no]: Likewise. localedata/ChangeLog: * Makefile (LOCALEDEF): Use $(rtld-prefix).
2014-06-17PowerPC: Fix nearbyintl failure for few inputsRajalakshmi Srinivasaraghavan
This patch fixes few failures in nearbyintl() where the fraction part is close to 0.5.i The new tests added report few extra failures in nearbyint_downward and nearbyint_towardzero which is a known issue. Fixes #17031.
2014-06-17PowerPC: Move powerpc code out of nptl/ subdirectoryAdhemerval Zanella
2014-06-17Fix ChangeLog indentation.Adhemerval Zanella
2014-06-16Add CFI to x86 ceil / floor / trunc (bug 16681).Joseph Myers
This patch adds CFI to the sysdeps/i386/fpu/ implementations of ceil, floor and trunc functions, for consistency with other x86 .S files in glibc which have CFI for stack adjustments. Tested x86. [BZ #16681] * sysdeps/i386/fpu/s_ceil.S (__ceil): Add CFI. * sysdeps/i386/fpu/s_ceilf.S (__ceilf): Likewise. * sysdeps/i386/fpu/s_ceill.S (__ceill): Likewise. * sysdeps/i386/fpu/s_floor.S (__floor): Likewise. * sysdeps/i386/fpu/s_floorf.S (__floorf): Likewise. * sysdeps/i386/fpu/s_floorl.S (__floorl): Likewise. * sysdeps/i386/fpu/s_trunc.S (__trunc): Likewise. * sysdeps/i386/fpu/s_truncf.S (__truncf): Likewise. * sysdeps/i386/fpu/s_truncl.S (__truncl): Likewise.
2014-06-17m68k: update libm test ULPsAndreas Schwab
2014-06-16Fix typo in preprocessor conditionalAndreas Schwab
2014-06-16Pass $TIMEOUTFACTOR to tests also in cross testingAndreas Schwab
2014-06-16Fix tautological comparison in non-executed part of tst-setuid2 (BZ #17058)Florian Weimer
This part never runs with the current implementation because the setresuid call currently aborts (as intended).
2014-06-16Update feature guard for strdup/strndup in <bits/string2.h>Andreas Schwab
2014-06-14Update Sparc ULPs.David S. Miller
* sysdeps/sparc/fpu/libm-test-ulps: Update.
2014-06-14m68k: Consolidate NPTL/non versions of cloneAndreas Schwab
2014-06-14m68k: Consolidate NPTL/non versions of vforkAndreas Schwab
2014-06-14Add fallback file for elide.hAndi Kleen
Add the missing fallback file for elide.h to fix non x86 builds. Sorry about that. This is just a noop macro file that makes all elision code to be optimized out.
2014-06-13Fix pthread.h in installed-headers list.Stefan Liebler
2014-06-13S390: Move NPTL public headers to sysdeps/s390/nptl/.Roland McGrath
2014-06-13Move S390 code out of nptl/sysdeps/s390/.Roland McGrath
2014-06-13S390: Convert fork.c to arch-fork.hRoland McGrath
2014-06-13Consolidate sparc clone, fork, and vfork implementations.David S. Miller
* nptl/sysdeps/unix/sysv/linux/sparc/sparc32/clone.S: Delete. * nptl/sysdeps/unix/sysv/linux/sparc/sparc32/pt-vfork.S: Delete. * nptl/sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S: Moved ... * sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S: ... here. * nptl/sysdeps/unix/sysv/linux/sparc/sparc64/clone.S: Delete. * nptl/sysdeps/unix/sysv/linux/sparc/sparc64/pt-vfork.S: Delete. * nptl/sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S: Moved ... * sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S: ... here. * sysdeps/unix/sysv/linux/sparc/fork.S: Delete. * sysdeps/unix/sysv/linux/sparc/pt-vfork.S: New file. * sysdeps/unix/sysv/linux/sparc/sparc32/clone.S (__thread_start): Remove RESET_PID cpp guards. * sysdeps/unix/sysv/linux/sparc/sparc64/clone.S (__thread_start): Remove RESET_PID cpp guards. * sysdeps/unix/sysv/linux/sparc/vfork.S: Delete.
2014-06-13m68k: avoid pointer to integer conversion warningAndreas Schwab
2014-06-13ChangeLog fixAndreas Schwab
2014-06-13Remove x86 assembler rwlock codeAndi Kleen
With the recent tuning the C version of rwlocks is basically the same performance as the x86 assembler version for uncontended locks (with a a few cycles near the run-to-run variability). For others it should not matter anyways. So remove the assembler code and use the C version like other architectures.
2014-06-13Add adaptive elision to rwlocksAndi Kleen
This patch relies on the C version of the rwlocks posted earlier. With C rwlocks it is very straight forward to do adaptive elision using TSX. It is based on the infrastructure added earlier for mutexes, but uses its own elision macros. The macros are fairly general purpose and could be used for other elision purposes too. This version is much cleaner than the earlier assembler based version, and in particular implements adaptation which makes it safer. I changed the behavior slightly to not require any changes in the test suite and fully conform to all expected behaviors (generally at the cost of not eliding in various situations). In particular this means the timedlock variants are not elided. Nested trylock aborts.
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