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* Add generic HAVE_RM_CTX implementationWilco Dijkstra2014-06-232-19/+113
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a generic implementation of HAVE_RM_CTX using standard fenv calls. As a result math functions using SET_RESTORE_ROUND* macros do not suffer from a large slowdown on targets which do not implement optimized libc_fe*_ctx inline functions. Most of the libc_fe* inline functions are now unused and could be removed in the future (there are a few math functions left which use a mixture of standard fenv calls and libc_fe* inline functions - they could be updated to use SET_RESTORE_ROUND or improved to avoid expensive fenv manipulations across just a few FP instructions). libc_feholdsetround*_noex_ctx is added to enable better optimization of SET_RESTORE_ROUND_NOEX* implementations. Performance measurements on ARM and x86 of sin() show significant gains over the current default, fairly close to a highly optimized fenv_private: ARM x86 no fenv_private : 100% 100% generic HAVE_RM_CTX : 250% 350% fenv_private (CTX) : 250% 450% 2014-06-23 Will Newton <will.newton@linaro.org> Wilco <wdijkstr@arm.com> * sysdeps/generic/math_private.h: Add generic HAVE_RM_CTX implementation. Include get-rounding-mode.h. [!HAVE_RM_CTX]: Define HAVE_RM_CTX to zero. [!libc_feholdsetround_noex_ctx]: Define libc_feholdsetround_noex_ctx. [!libc_feholdsetround_noexf_ctx]: Define libc_feholdsetround_noexf_ctx. [!libc_feholdsetround_noexl_ctx]: Define libc_feholdsetround_noexl_ctx. (libc_feholdsetround_ctx): New function. (libc_feresetround_ctx): New function. (libc_feholdsetround_noex_ctx): New function. (libc_feresetround_noex_ctx): New function.
* MIPS: Move NPTL public headers to sysdeps/mips/nptl/.Roland McGrath2014-06-234-0/+7
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* m68k: Consolidate nptl/ subdirectories under linux/...Roland McGrath2014-06-2334-0/+77
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* SH: Consolidate nptl/ subdirectories under linux/.....Roland McGrath2014-06-2315-0/+31
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* Update headers for Linux 3.15.Joseph Myers2014-06-233-0/+18
| | | | | | | | | | | | | | | | | | This patch updates glibc headers for changes / new definitions in Linux 3.15. In the course of my review I noticed that IPV6_PMTUDISC_INTERFACE was absent from glibc despite the inclusion of IP_PMTUDISC_INTERFACE; I added it along with IP_PMTUDISC_OMIT and IPV6_PMTUDISC_OMIT. I did not add FALLOC_FL_NO_HIDE_STALE given the kernel header comment that it is reserved. Tested x86_64. * sysdeps/unix/sysv/linux/bits/fcntl-linux.h [__USE_GNU] (FALLOC_FL_COLLAPSE_RANGE): New macro. [__USE_GNU] (FALLOC_FL_ZERO_RANGE): Likewise. * sysdeps/unix/sysv/linux/bits/in.h (IP_PMTUDISC_OMIT): Likewise. (IPV6_PMTUDISC_INTERFACE): Likewise. (IPV6_PMTUDISC_OMIT): Likewise.
* Remove unused labelAndreas Schwab2014-06-232-1/+5
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* PowerPC: sync hwcap.h capabilitiesAdhemerval Zanella2014-06-232-0/+7
| | | | | | | Linux commit dd58a092c4202f2bd490adab7285b3ff77f8e467 added the PPC_FEATURE2_VEC_CRYPTO auvx capability to indicate whether to hardware supports vector crypto hardware instructions. This patch adds its definition to powerpc hwcap bits.
* elf/dl-lookup.c: Use __glibc_likely and __glibc_unlikelyWill Newton2014-06-232-20/+22
| | | | | | | | | | | | | | | | Convert all uses of __builtin_expect to __glibc_likely and __glibc_unlikely. Most of these are trivial boolean expressions but a few were not. In particular the use of __builtin_expect in the switch expression in do_lookup_x has been removed. Verified that there are no code changes on x86_64 and ARM aside from line numbers. ChangeLog: 2014-06-23 Will Newton <will.newton@linaro.org> * elf/dl-lookup.c: Use __glibc_unlikely and __glibc_likely rather than __builtin_expect.
* elf/dl-lookup.c: Remove unnecessary static variableWill Newton2014-06-232-4/+5
| | | | | | | | | | | | undefined_msg is only used once contrary to the comment. ChangeLog: 2014-06-23 Will Newton <will.newton@linaro.org> * elf/dl-lookup.c (undefined_msg): Remove variable. (_dl_lookup_symbol_x): Replace undefined_msg with string literal.
* elf/dl-lookup.c: Move STB_GNU_UNIQUE handling to a functionWill Newton2014-06-232-145/+165
| | | | | | | | | | | | | | | | Move handling of STB_GNU_UNIQUE symbols to a separate function from do_lookup_x in order to make the code more readable. The new function gets inlined with gcc 4.8 on ARM and the do_lookup_x code becomes a few bytes smaller. ChangeLog: 2014-06-23 Will Newton <will.newton@linaro.org> * elf/dl-lookup.c (do_lookup_unique): New function. (do_lookup_x): Move STB_GNU_UNIQUE handling code to a separate function.
* Don't ignore too long lines in nss_files (BZ #17079)Andreas Schwab2014-06-233-2/+10
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* test-skeleton.c: Use stdout for error messagesWill Newton2014-06-232-23/+28
| | | | | | | | | | | | | | | | | | At the moment the test skeleton uses a mixture of stdout and stderr for error message output. Using stdout for all test output keeps all output correctly ordered and properly redirected to the output file. The suggestion to use stdout is also made on the wiki: https://sourceware.org/glibc/wiki/Testing/Testsuite#Writing_a_test_case ChangeLog: 2014-06-23 Will Newton <will.newton@linaro.org> * test-skeleton.c (signal_handler): Use printf and %m rather than perror. Use printf rather than fprintf to stderr. Use puts rather than fputs to stderr. (main): Likewise.
* nscd: Remove unused typedef and variable.Ludovic Courtès2014-06-222-14/+5
| | | | | | | | | The attached patch removed the unused ‘thread_info_t’ typedef and the ‘thread_info’ variable from nscd.c. The former conflicts with a GNU Mach typedef, and the latter conflicts with a GNU Mach function declaration: <https://lists.gnu.org/archive/html/bug-hurd/2014-06/msg00101.html>. Tested on x86_64-linux-gnu.
* Mention CVE-2014-4043 in NEWSAllan McRae2014-06-212-0/+10
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* Move generic smp.h to nptl/Roland McGrath2014-06-202-1/+4
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* Remove unused file rtld-lowlevel.h.Roland McGrath2014-06-202-43/+2
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* Clean up HAVE_CONFIG_H and STDC_HEADERS.Roland McGrath2014-06-205-4/+20
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* Clean up stack-coloring macros.Roland McGrath2014-06-207-38/+67
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* Move linux bits/ files out of nptl/.Roland McGrath2014-06-205-308/+147
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* Remove ARM __ASSUME_SIGFRAME_V2.Joseph Myers2014-06-215-59/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* Missing new file from last commit.Roland McGrath2014-06-201-0/+3
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* Move remaining SPARC code out of nptl/.Roland McGrath2014-06-2047-29/+133
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* Include <kernel-features.h> explicitly where required.Joseph Myers2014-06-2010-0/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* Remove __ASSUME_SOCK_CLOEXEC / SOCK_CLOEXEC conditionals in Linux-specific code.Joseph Myers2014-06-203-65/+16
| | | | | | | | | | | | | | | | | | | | | | 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.
* Add ifunc tests for x86_64 memset_chk and memsetH.J. Lu2014-06-203-1/+20
| | | | | | | | | | | | 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.
* [BZ #16046] dl_iterate_phdr static executable testMaciej W. Rozycki2014-06-203-1/+52
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* stdlib/tst-qsort2.c: Fix off-by-one argc interpretation errorMaciej W. Rozycki2014-06-202-1/+6
| | | | | | | 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).
* Remove __ASSUME_F_GETOWN_EX.Joseph Myers2014-06-203-21/+9
| | | | | | | | | | | | | | | | 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.
* Remove __ASSUME_AT_RANDOM.Joseph Myers2014-06-203-44/+13
| | | | | | | | | | | | | | 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.
* Remove __ASSUME_ADJ_OFFSET_SS_READ.Joseph Myers2014-06-203-23/+10
| | | | | | | | | | | | | | | | 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.
* [BZ #17075] ARM: Fix immediate calculation of R_ARM_TLS_DESCMaciej W. Rozycki2014-06-2012-2/+178
| | | | | | 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.
* Remove __ASSUME_ATFCTS conditionals in sysdeps/unix/sysv/linux/.Joseph Myers2014-06-2030-1580/+147
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* Remove sysdeps/x86_64/multiarch/rtld-strlen.SH.J. Lu2014-06-202-1/+4
| | | | | | | 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.
* Fix another memory leak in regexp compiler (BZ #17069)Andreas Schwab2014-06-204-4/+15
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* Fix ChangeLog and NEWS goof-upSiddhesh Poyarekar2014-06-203-14/+16
| | | | | The ChangeLog belonged to localedata and the bug is not completely fixed, so it didn't deserve to enter the NEWS yet.
* [BZ #6803] Set errno for scalbln, scalbnStefan Liebler2014-06-2022-96/+292
| | | | | | | | | | | 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.
* Generate en_GB.UTF-8 during testingStefan Liebler2014-06-202-1/+5
| | | | | | This patch generates en_GB.UTF-8, which is used in tst-strcoll-overflow. This solves the issue of failing xtests on s390/s390x.
* Use 3 bytes for __pad1 in pthread_rwlock_t for x32H.J. Lu2014-06-192-1/+12
| | | | | | | | | 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.
* Add x86_64 memset optimized for AVX2Ling Ma2014-06-196-1/+284
| | | | | | | | | | | | | | | 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.
* Fix memory leak in regexp compiler (BZ #17069)Andreas Schwab2014-06-194-6/+60
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* malloc/malloc.c: Avoid calling sbrk unnecessarily with zeroWill Newton2014-06-192-0/+8
| | | | | | | | | | | | | 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.
* Remove unnecessary $(.)Siddhesh Poyarekar2014-06-192-1/+5
| | | | The variable is not necessary, especially since it does not exist.
* [AArch64] Add optimized strchr.Richard Earnshaw2014-06-193-0/+144
| | | | | | | | 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.
* Fix __ieee754_logl (-LDBL_MAX) in FE_DOWNWARD mode (bug 17022).Joseph Myers2014-06-185-5/+22
| | | | | | | | | | | | | | | | | | | 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.
* Don't read past end of pattern in fnmatch (BZ #17062)Andreas Schwab2014-06-185-12/+44
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* Use $(rtld-prefix) more consistently.Joseph Myers2014-06-186-5/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | 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).
* PowerPC: Fix nearbyintl failure for few inputsRajalakshmi Srinivasaraghavan2014-06-174-1/+23
| | | | | | | | 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.
* PowerPC: Move powerpc code out of nptl/ subdirectoryAdhemerval Zanella2014-06-177-0/+15
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* Fix ChangeLog indentation.Adhemerval Zanella2014-06-171-66/+64
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* Add CFI to x86 ceil / floor / trunc (bug 16681).Joseph Myers2014-06-1611-5/+36
| | | | | | | | | | | | | | | | | | | 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.
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