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* support: Report NULL blobs explicitly in TEST_COMPAREFlorian Weimer2019-05-162-1/+8
| | | | | | | Provide an explicit diagnostic if the length is positive, and do not just crash with a null pointer dereference. Null pointers are only valid if the length is zero, so this can only happen with a faulty test.
* dlfcn: Guard __dlerror_main_freeres with __libc_once_get (once) [BZ# 24476]Mark Wielaard2019-05-152-8/+29
| | | | | | | | | | | | | | | | | | dlerror.c (__dlerror_main_freeres) will try to free resources which only have been initialized when init () has been called. That function is called when resources are needed using __libc_once (once, init) where once is a __libc_once_define (static, once) in the dlerror.c file. Trying to free those resources if init () hasn't been called will produce errors under valgrind memcheck. So guard the freeing of those resources using __libc_once_get (once) and make sure we have a valid key. Also add a similar guard to __dlerror (). * dlfcn/dlerror.c (__dlerror_main_freeres): Guard using __libc_once_get (once) and static_bug == NULL. (__dlerror): Check we have a valid key, set result to static_buf otherwise. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* Add missing Changelog entryDJ Delorie2019-05-151-0/+5
| | | | For 5b06f538c5aee0389ed034f60d90a8884d6d54de
* Fix crash in _IO_wfile_sync (bug 20568)Andreas Schwab2019-05-155-3/+57
| | | | | | When computing the length of the converted part of the stdio buffer, use the number of consumed wide characters, not the (negative) distance to the end of the wide buffer.
* nss: Turn __nss_database_lookup into a compatibility symbolFlorian Weimer2019-05-1515-42/+89
| | | | | | | | | | | | | The function uses the internal service_user type, so it is not really usable from the outside of glibc. Rename the function to __nss_database_lookup2 for internal use, and change __nss_database_lookup to always indicate failure to the caller. __nss_next already was a compatibility symbol. The new implementation always fails and no longer calls __nss_next2. unscd, the alternative nscd implementation, does not use __nss_database_lookup, so it is not affected by this change.
* support: Add support_install_rootsbindirAlexandra Hájková2019-05-154-1/+16
| | | | Reviewed by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* iconv: Remove public declaration of __gconv_transliterateFlorian Weimer2019-05-155-11/+17
| | | | | | | | | | Commit ba7b4d294b01870ce3497971e9d07ee261cdc540 ("Complete the removal of __gconv_translit_find") added a declaration of the GLIBC_PRIVATE function, __gconv_transliterate, to the installed header <gconv.h>. It should have been added to the internal <gconv_int.h> header. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* Linux: Add the tgkill functionFlorian Weimer2019-05-1438-4/+282
| | | | | | | | | The tgkill function is sometimes used in crash handlers. <bits/signal_ext.h> follows the same approach as <bits/unistd_ext.h> (which was added for the gettid system call wrapper). Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* manual: Adjust twalk_r documentation.Carlos O'Donell2019-05-142-2/+7
| | | | Reviewed-by: Florian Weimer <fweimer@redhat.com>
* elf: Fix tst-pldd for non-default --prefix and/or --bindir (BZ#24544)Adhemerval Zanella2019-05-142-1/+9
| | | | | | | | | | | | | | Use a new libsupport support_bindir_prefix instead of a hardcoded /usr/bin to create the pldd path on container directory. Checked on x86_64-linux-gnu with default and non-default --prefix and --bindir paths, as well with --enable-hardcoded-path-in-tests. [BZ #24544] * elf/tst-pldd.c (do_test): Use support_bindir_prefix instead of pre-defined value. Reviewed-by: DJ Delorie <dj@redhat.com>
* support: Export bindir path on support_pathAdhemerval Zanella2019-05-144-1/+15
| | | | | | | | | | Checked on x86_64-linux-gnu. * support/Makefile (CFLAGS-support_paths.c): Add -DBINDIR_PATH. * support/support.h (support_bindir_prefix): New variable. * support/support_paths.c [BINDIR_PATH] (support_bindir_prefix): Reviewed-by: DJ Delorie <dj@redhat.com>
* Make --bindir effectiveAdhemerval Zanella2019-05-142-0/+3
| | | | | | | | | | This allows sets a path using --bindir. Checked on x86_64-linux-gnu with a non-default --bindir and checked resulting installed binaries (pldd for instance). * config.make.in (bindir): New variable. Reviewed-by: DJ Delorie <dj@redhat.com>
* x86: Remove arch-specific low level lock implementationAdhemerval Zanella2019-05-1412-1026/+128
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes the arch-specific x86 assembly implementation for low level locking and consolidate both 64 bits and 32 bits in a single implementation. Different than other architectures, x86 lll_trylock, lll_lock, and lll_unlock implements a single-thread optimization to avoid atomic operation, using cmpxchgl instead. This patch implements by using the new single-thread.h definitions in a generic way, although using the previous semantic. The lll_cond_trylock, lll_cond_lock, and lll_timedlock just use atomic operations plus calls to lll_lock_wait*. For __lll_lock_wait_private and __lll_lock_wait the generic implemtation there is no indication that assembly implementation is required performance-wise. Checked on x86_64-linux-gnu and i686-linux-gnu. * sysdeps/nptl/lowlevellock.h (__lll_trylock): New macro. (lll_trylock): Call __lll_trylock. * sysdeps/unix/sysv/linux/i386/libc-lowlevellock.S: Remove file. * sysdeps/unix/sysv/linux/i386/lll_timedlock_wait.c: Likewise. * sysdeps/unix/sysv/linux/i386/lowlevellock.S: Likewise. * sysdeps/unix/sysv/linux/i386/lowlevellock.h: Likewise. * sysdeps/unix/sysv/linux/x86_64/libc-lowlevellock.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/lll_timedlock_wait.c: Likewise. * sysdeps/unix/sysv/linux/x86_64/lowlevellock.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/lowlevellock.h: Likewise. * sysdeps/unix/sysv/linux/x86/lowlevellock.h: New file. * sysdeps/unix/sysv/linux/x86_64/cancellation.S: Include lowlevellock-futex.h.
* Assume LLL_LOCK_INITIALIZER is 0Adhemerval Zanella2019-05-147-52/+13
| | | | | | | | | | | | | | | | | Since hppa is not an outlier anymore regarding LLL_LOCK_INITIALIZER value, we can now assume it 0 for all architectures. Checked on a build for all major ABIs. * nptl/nptl-init.c (__pthread_initialize_minimal_internal): Remove initialization for LLL_LOCK_INITIALIZER different than 0. * nptl/old_pthread_cond_broadcast.c (__pthread_cond_broadcast_2_0): Assume LLL_LOCK_INITIALIZER being 0. * nptl/old_pthread_cond_signal.c (__pthread_cond_signal_2_0): Likewise. * nptl/old_pthread_cond_timedwait.c (__pthread_cond_timedwait_2_0): Likewise. * nptl/old_pthread_cond_wait.c (__pthread_cond_wait_2_0): Likewise. * sysdeps/nptl/libc-lockP.h (__libc_lock_define_initialized): Likewise.
* Small optimization for lowlevellockAdhemerval Zanella2019-05-142-12/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch optimizes both __lll_lock_wait_private and __lll_lock_wait by issuing only one lll_futex_wait. Since it is defined as an inlined syscall and inlined syscalls are defined using inlined assembly the compiler usually can not see both calls are equal and optimize accordingly. On aarch64 the resulting binary is change from: 0000000000000060 <__lll_lock_wait>: 60: 2a0103e5 mov w5, w1 64: b9400001 ldr w1, [x0] 68: aa0003e4 mov x4, x0 6c: 7100083f cmp w1, #0x2 70: 540000e1 b.ne 8c <__lll_lock_wait+0x2c> // b.any 74: 521900a1 eor w1, w5, #0x80 78: d2800042 mov x2, #0x2 // #2 7c: 93407c21 sxtw x1, w1 80: d2800003 mov x3, #0x0 // #0 84: d2800c48 mov x8, #0x62 // #98 88: d4000001 svc #0x0 8c: 521900a5 eor w5, w5, #0x80 90: 52800046 mov w6, #0x2 // #2 94: 93407ca5 sxtw x5, w5 98: 14000008 b b8 <__lll_lock_wait+0x58> 9c: d503201f nop a0: aa0403e0 mov x0, x4 a4: aa0503e1 mov x1, x5 a8: d2800042 mov x2, #0x2 // #2 ac: d2800003 mov x3, #0x0 // #0 b0: d2800c48 mov x8, #0x62 // #98 b4: d4000001 svc #0x0 b8: 885ffc80 ldaxr w0, [x4] bc: 88017c86 stxr w1, w6, [x4] c0: 35ffffc1 cbnz w1, b8 <__lll_lock_wait+0x58> c4: 35fffee0 cbnz w0, a0 <__lll_lock_wait+0x40> c8: d65f03c0 ret To: 0000000000000048 <__lll_lock_wait>: 48: aa0003e4 mov x4, x0 4c: 2a0103e5 mov w5, w1 50: b9400000 ldr w0, [x0] 54: 7100081f cmp w0, #0x2 58: 540000c0 b.eq 70 <__lll_lock_wait+0x28> // b.none 5c: 52800041 mov w1, #0x2 // #2 60: 885ffc80 ldaxr w0, [x4] 64: 88027c81 stxr w2, w1, [x4] 68: 35ffffc2 cbnz w2, 60 <__lll_lock_wait+0x18> 6c: 34000120 cbz w0, 90 <__lll_lock_wait+0x48> 70: 521900a1 eor w1, w5, #0x80 74: aa0403e0 mov x0, x4 78: 93407c21 sxtw x1, w1 7c: d2800042 mov x2, #0x2 // #2 80: d2800003 mov x3, #0x0 // #0 84: d2800c48 mov x8, #0x62 // #98 88: d4000001 svc #0x0 8c: 17fffff4 b 5c <__lll_lock_wait+0x14> 90: d65f03c0 ret I see similar changes on powerpc and other architectures. It also aligns with x86_64 implementation by adding the systemtap probes. Checker on aarch64-linux-gnu. * nptl/lowlevellock.c (__lll_lock_wait, __lll_lock_wait_private): Optimize futex call and add systemtap probe.
* Add single-thread.h headerAdhemerval Zanella2019-05-148-79/+146
| | | | | | | | | | | | | | | | | | | | | | | | | This patch move the single-thread syscall optimization defintions from syscall-cancel.h to new header file single-thread.h and also move the cancellation definitions from pthreadP.h to syscall-cancel.h. The idea is just simplify the inclusion of both syscall-cancel.h and single-thread.h (without the requirement of including all pthreadP.h defintions). No semantic changes expected, checked on a build for all major ABIs. * nptl/pthreadP.h (CANCEL_ASYNC, CANCEL_RESET, LIBC_CANCEL_ASYNC, LIBC_CANCEL_RESET, __libc_enable_asynccancel, __libc_disable_asynccancel, __librt_enable_asynccancel, __libc_disable_asynccancel, __librt_enable_asynccancel, __librt_disable_asynccancel): Move to ... * sysdeps/unix/sysv/linux/sysdep-cancel.h: ... here. (SINGLE_THREAD_P, RTLD_SINGLE_THREAD_P): Move to ... * sysdeps/unix/sysv/linux/single-thread.h: ... here. * sysdeps/generic/single-thread.h: New file. * sysdeps/unix/sysdep.h: Include single-thread.h. * sysdeps/unix/sysv/linux/futex-internal.h: Include sysdep-cancel.h. * sysdeps/unix/sysv/linux/lowlevellock-futex.h: Likewise.
* Bug 24535: Update to Unicode 12.1.0Mike FABIAN2019-05-1316-237/+254
| | | | | | | | | | | | | | | | | | | Unicode 12.1.0 Support: Character encoding, character type info, and transliteration tables are all updated to Unicode 12.1.0, using the generator scripts contributed by Mike FABIAN (Red Hat). Some info about the number of characters added or changed: Total added characters in newly generated CHARMAP: 1 added: <U32FF> /xe3/x8b/xbf SQUARE ERA NAME REIWA Total added characters in newly generated WIDTH: 1 added: <U32FF> 2 : eaw=W category=So bidi=L name=SQUARE ERA NAME REIWA graph: Added 1 characters in new ctype which were not in old ctype graph: Added: ㋿ U+32FF SQUARE ERA NAME REIWA print: Added 1 characters in new ctype which were not in old ctype print: Added: ㋿ U+32FF SQUARE ERA NAME REIWA punct: Added 1 characters in new ctype which were not in old ctype punct: Added: ㋿ U+32FF SQUARE ERA NAME REIWA
* Fix tcache count maximum (BZ #24531)Wilco Dijkstra2019-05-103-4/+16
| | | | | | | | | | | | The tcache counts[] array is a char, which has a very small range and thus may overflow. When setting tcache_count tunable, there is no overflow check. However the tunable must not be larger than the maximum value of the tcache counts[] array, otherwise it can overflow when filling the tcache. [BZ #24531] * malloc/malloc.c (MAX_TCACHE_COUNT): New define. (do_set_tcache_count): Only update if count is small enough. * manual/tunables.texi (glibc.malloc.tcache_count): Document max value.
* sem_close: Use __twalk_rFlorian Weimer2019-05-102-13/+21
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* support: Fix timespec printfAdhemerval Zanella2019-05-102-10/+17
| | | | | | | | | | | | | | | | | The patch print timespec members as intmax_t instead of long int. It avoid the -Werror=format= build issue on x32: timespec.c: In function 'test_timespec_before_impl': timespec.c:32:23: error: format '%ld' expects argument of type 'long int', but argument 4 has type '__time_t' {aka 'const long long int'} [-Werror=format=] Checked on x86_64-linux-gnu-x32, x86_64-linux-gnu, and i686-linux-gnu. * support/timespec.c (test_timespec_before_impl, test_timespec_equal_or_after_impl): print timespec member as intmax_t insted of long int. Reviewed-by: Florian Weimer <fweimer@redhat.com>
* nptl/tst-abstime: Use libsupportMike Crowe2019-05-092-52/+20
| | | | | | | | Checked on x86_64-linux-gnu and i686-linux-gnu. * nptl/tst-abstime.c: Use libsupport. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* nptl: Convert some rwlock tests to use libsupportMike Crowe2019-05-095-386/+105
| | | | | | | | | | | | | | Checked on x86_64-linux-gnu and i686-linux-gnu. * nptl/tst-rwlock6.c: Use libsupport. This also happens to fix a small bug where only tv.tv_usec was checked which could cause an erroneous pass if pthread_rwlock_timedrdlock incorrectly took more than a second. * nptl/tst-rwlock7.c, nptl/tst-rwlock9.c, nptl/tst-rwlock14.c: Use libsupport. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* nptl: Use recent additions to libsupport in tst-sem5Mike Crowe2019-05-092-16/+8
| | | | | | | | | Checked on x86_64-linux-gnu and i686-linux-gnu. * nptl/tst-sem5.c(do_test): Use xclock_gettime, timespec_add and TEST_TIMESPEC_NOW_OR_AFTER from libsupport. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* nptl: Convert tst-cond11.c to use libsupportMike Crowe2019-05-092-133/+38
| | | | | | | | Checked on x86_64-linux-gnu and i686-linux-gnu. * nptl/tst-cond11.c: Use libsupport. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* support: Add timespec.hMike Crowe2019-05-097-0/+299
| | | | | | | | | | | | | | | | | | It adds useful functions for tests that use struct timespec. Checked on x86_64-linux-gnu and i686-linux-gnu. * support/timespec.h: New file. Provide timespec helper functions along with macros in the style of those in check.h. * support/timespec.c: New file. Implement check functions declared in support/timespec.h. * support/timespec-add.c: New file from gnulib containing timespec_add implementation that handles overflow. * support/timespec-sub.c: New file from gnulib containing timespec_sub implementation that handles overflow. * support/README: Mention timespec.h. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Move nptl/tst-eintr1 to xtestsSzabolcs Nagy2019-05-092-1/+11
| | | | | | | | | | Don't run nptl/tst-eintr1 by normal make check because it can spuriously break testing on various linux kernels. (Currently this affects the aarch64 glibc buildbot machine which regularly fails and loses test results.) [BZ #24537] * nptl/Makefile: Move tst-eintr1 to xtests.
* powerpc: trunc/truncf refactorAdhemerval Zanella2019-05-0933-665/+158
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patches consolidates all the powerpc trunc{f} implementations on the generic sysdeps/powerpc/fpu/s_trunc{f}. The generic implementation uses either the compiler builts for ISA 2.03+ (which generates the frim instruction) or a generic implementation which uses FP only operations. The IFUNC organization for powerpc64 is also change to be enabled only for powerpc64 and not for powerpc64le (since minium ISA of 2.08 does not require the fallback generic implementation). Checked on powerpc-linux-gnu (built without --with-cpu, with --with-cpu=power4 and with --with-cpu=power5+ and --disable-multi-arch), powerpc64-linux-gnu (built without --with-cp and with --with-cpu=power5+ and --disable-multi-arch). * sysdeps/powerpc/fpu/trunc_to_integer.h (set_fenv_mode): Add TRUNC handling. (round_mode): Add definition for TRUNC. * sysdeps/powerpc/fpu/s_trunc.c: New file. * sysdeps/powerpc/fpu/s_truncf.c: New file. * sysdeps/powerpc/powerpc32/fpu/s_trunc.S: Remove file. * sysdeps/powerpc/powerpc32/fpu/s_truncf.S: Likewise. * sysdep/powerpc/powepc32/power4/fpu/multiarch/s_trunc-power5+.S: Likewise. * sysdep/powerpc/powepc32/power4/fpu/multiarch/s_trunc-ppc32.S: Likewise. * sysdep/powerpc/powepc32/power4/fpu/multiarch/s_truncf-power5+.S: Likewise. * sysdep/powerpc/powepc32/power4/fpu/multiarch/s_truncf-ppc32.S: Likewise. * sysdep/powerpc/powepc32/power4/fpu/multiarch/s_trunc-power5+.c: New file. * sysdep/powerpc/powepc32/power4/fpu/multiarch/s_trunc-ppc32.c: Likewise. * sysdep/powerpc/powepc32/power4/fpu/multiarch/s_truncf-power5+.c: Likewise. * sysdep/powerpc/powepc32/power4/fpu/multiarch/s_truncf-ppc32.c: Likewise. * sysdep/powerpc/powerpc32/power5+/fpu/s_trunc.S: Remove file. * sysdep/powerpc/powerpc32/power5+/fpu/s_truncf.S: Likewise. * sysdep/powerpc/powerpc64/be/fpu/multiarch/Makefile (libm-sysdep_routines): Add s_trunc-power5+, s_trunc-ppc64, s_truncf-power5+, and s_truncf-ppc64. (CFLAGS-s_trunc-power5+.c, CFLAGS-s_truncf-power5+.c): New rule. * sysdep/powerpc/powercp64/be/fpu/multiarch/s_trunc-power5+.c: New file. * sysdep/powerpc/powercp64/be/fpu/multiarch/s_trunc-ppc64.c: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_trunc.c: Move to ... * sysdeps/powerpc/powerpc64/be/fpu/multiarch/s_trunc.c: ... here. * sysdep/powerpc/powercp64/be/fpu/multiarch/s_truncf-power5+.c: New file. * sysdep/powerpc/powercp64/be/fpu/multiarch/s_truncf-ppc64.c: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_truncf.c: Move to ... * sysdeps/powerpc/powerpc64/be/fpu/multiarch/s_truncf.c: ... here. * sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile (libm-sysdep_routines): Remove s_trunc-power5+, s_trunc-ppc64, s_truncf-power5+, and s_truncf-ppc64. * sysdep/powerpc/powerpc64/fpu/multiarch/s_trunc-power5+.S: Remove file. * sysdep/powerpc/powerpc64/fpu/multiarch/s_trunc-ppc64.S: Likewise. * sysdep/powerpc/powerpc64/fpu/multiarch/s_truncf-power5+.S: Likewise. * sysdep/powerpc/powerpc64/fpu/multiarch/s_truncf-ppc64.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_trunc.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_truncf.S: Likewise. * sysdep/powerpc/powerpc64/power5+/fpu/s_trunc.S: Likewise. * sysdep/powerpc/powerpc64/power5+/fpu/s_truncf.S: Likewise. Reviewed-by: Gabriel F. T. Gomes <gabriel@inconstante.eti.br>
* powerpc: round/roundf refactorAdhemerval Zanella2019-05-0932-704/+176
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patches consolidates all the powerpc round{f} implementations on the generic sysdeps/powerpc/fpu/s_round{f}. The generic implementation uses either the compiler builts for ISA 2.03+ (which generates the frim instruction) or a generic implementation which uses FP only operations. The IFUNC organization for powerpc64 is also change to be enabled only for powerpc64 and not for powerpc64le (since minium ISA of 2.08 does not require the fallback generic implementation). Checked on powerpc-linux-gnu (built without --with-cpu, with --with-cpu=power4 and with --with-cpu=power5+ and --disable-multi-arch), powerpc64-linux-gnu (built without --with-cp and with --with-cpu=power5+ and --disable-multi-arch). * sysdeps/powerpc/fpu/round_to_integer.h (set_fenv_mode): Add ROUND handling. (round_mode): Add definition for ROUND. (round_to_integer_float): Likewise. * sysdeps/powerpc/fpu/s_round.c: New file. * sysdeps/powerpc/fpu/s_roundf.c: New file. * sysdeps/powerpc/powerpc32/fpu/s_round.S: Remove file. * sysdeps/powerpc/powerpc32/fpu/s_roundf.S: Likewise. * sysdep/powerpc/powepc32/power4/fpu/multiarch/s_round-power5+.S: Likewise. * sysdep/powerpc/powepc32/power4/fpu/multiarch/s_round-ppc32.S: Likewise. * sysdep/powerpc/powepc32/power4/fpu/multiarch/s_roundf-power5+.S: Likewise. * sysdep/powerpc/powepc32/power4/fpu/multiarch/s_roundf-ppc32.S: Likewise. * sysdep/powerpc/powepc32/power4/fpu/multiarch/s_round-power5+.c: New file. * sysdep/powerpc/powepc32/power4/fpu/multiarch/s_round-ppc32.c: Likewise. * sysdep/powerpc/powepc32/power4/fpu/multiarch/s_roundf-power5+.c: Likewise. * sysdep/powerpc/powepc32/power4/fpu/multiarch/s_roundf-ppc32.c: Likewise. * sysdep/powerpc/powerpc32/power5+/fpu/s_round.S: Remove file. * sysdep/powerpc/powerpc32/power5+/fpu/s_roundf.S: Likewise. * sysdep/powerpc/powerpc64/be/fpu/multiarch/Makefile (libm-sysdep_routines): Add s_round-power5+, s_round-ppc64, s_roundf-power5+, and s_roundf-ppc64. (CFLAGS-s_round-power5+.c, CFLAGS-s_roundf-power5+.c): New rule. * sysdep/powerpc/powercp64/be/fpu/multiarch/s_round-power5+.c: New file. * sysdep/powerpc/powercp64/be/fpu/multiarch/s_round-ppc64.c: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_round.c: Move to ... * sysdeps/powerpc/powerpc64/be/fpu/multiarch/s_round.c: ... here. * sysdep/powerpc/powercp64/be/fpu/multiarch/s_roundf-power5+.c: New file. * sysdep/powerpc/powercp64/be/fpu/multiarch/s_roundf-ppc64.c: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_roundf.c: Move to ... * sysdeps/powerpc/powerpc64/be/fpu/multiarch/s_roundf.c: ... here. * sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile (libm-sysdep_routines): Remove s_round-power5+, s_round-ppc64, s_roundf-power5+, and s_roundf-ppc64. * sysdep/powerpc/powerpc64/fpu/multiarch/s_round-power5+.S: Remove file. * sysdep/powerpc/powerpc64/fpu/multiarch/s_round-ppc64.S: Likewise. * sysdep/powerpc/powerpc64/fpu/multiarch/s_roundf-power5+.S: Likewise. * sysdep/powerpc/powerpc64/fpu/multiarch/s_roundf-ppc64.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_round.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_roundf.S: Likewise. * sysdep/powerpc/powerpc64/power5+/fpu/s_round.S: Likewise. * sysdep/powerpc/powerpc64/power5+/fpu/s_roundf.S: Likewise. Reviewed-by: Gabriel F. T. Gomes <gabriel@inconstante.eti.br>
* powerpc: floor/floorf refactorAdhemerval Zanella2019-05-0932-633/+163
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patches consolidates all the powerpc floor{f} implementations on the generic sysdeps/powerpc/fpu/s_floor{f}. The generic implementation uses either the compiler builts for ISA 2.03+ (which generates the frim instruction) or a generic implementation which uses FP only operations. The IFUNC organization for powerpc64 is also change to be enabled only for powerpc64 and not for powerpc64le (since minium ISA of 2.08 does not require the fallback generic implementation). Checked on powerpc-linux-gnu (built without --with-cpu, with --with-cpu=power4 and with --with-cpu=power5+ and --disable-multi-arch), powerpc64-linux-gnu (built without --with-cp and with --with-cpu=power5+ and --disable-multi-arch). * sysdeps/powerpc/fpu/round_to_integer.h (set_fenv_mode): Add FLOOR option. (round_mode): Add definition for FLOOR. * sysdeps/powerpc/fpu/s_floor.c: New file. * sysdeps/powerpc/fpu/s_floorf.c: Likewise. * sysdeps/powerpc/powerpc32/fpu/s_floor.S: Remove file. * sysdeps/powerpc/powerpc32/fpu/s_floorf.S: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floor-power5+.S: Remove file. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floor-ppc32.S: Likewise * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floorf-power5+.S: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floorf-ppc32.S: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floor-power5+.c: New file. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floor-ppc32.c: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floorf-power5+.c: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floorf-ppc32.c: Likewise. * sysdeps/powerpc/powerpc32/power5+/fpu/s_floor.S: Remove file. * sysdeps/powerpc/powerpc32/power5+/fpu/s_floorf.S: Remove file. * sysdeps/powerpc/powerpc64/be/fpu/multiarch/Makefile (libm-sysdep_routines): Add s_floor-power5+, s_floor-ppc64, s_floorf-power5+, and s_floorf-ppc64. (CFLAGS-s_floor-power5+.c, CFLAGS-s_floorf-power5+.c): New rule. * sysdep/powerpc/powerpc64/be/fpu/multiarch/s_floor-power5+.c: New file. * sysdep/powerpc/powerpc64/be/fpu/multiarch/s_floor-ppc64.c: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_floor.c: Move to ... * sysdeps/powerpc/powerpc64/be/fpu/multiarch/s_floor.c: ... here. * sysdep/powerpc/powerpc64/be/fpu/multiarch/s_floorf-power5+.c: New file. * sysdep/powerpc/powerpc64/be/fpu/multiarch/s_floorf-ppc64.c: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_floorf.c: Move to ... * sysdeps/powerpc/powerpc64/be/fpu/multiarch/s_floorf.c: ... here. * sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile (libm-sysdep_routines): Remove s_floor-power5+, s_floor-ppc64, s_floorf-power5+, and s_floorf-ppc64. * sysdep/powerpc/powerpc64/fpu/multiarch/s_floor-power5+.S: Remove file. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_floor-ppc64.S: Remove file. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_floorf-power5+.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_floorf-ppc64.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_floor.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_floorf.S: Likewise. * sysdeps/powerpc/powerpc64/power5+/fpu/s_floor.S: Likewise. * sysdeps/powerpc/powerpc64/power5+/fpu/s_floorf.S: Likewise. Reviewed-by: Gabriel F. T. Gomes <gabriel@inconstante.eti.br>
* support: Add xclock_gettimeMike Crowe2019-05-085-0/+78
| | | | | | | | | | | | * support/xclock_gettime.c (xclock_gettime): New file. Provide clock_gettime wrapper for use in tests that fails the test rather than returning failure. * support/xtime.h: New file to declare xclock_gettime. * support/Makefile: Add xclock_gettime.c. * support/README: Mention xtime.h.
* malloc/tst-mallocfork2: Use process-shared barriersFlorian Weimer2019-05-083-52/+106
| | | | | | | | | | This synchronization method has a lower overhead and makes it more likely that the signal arrives during one of the critical functions. Also test for fork deadlocks explicitly. Reviewed-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
* Update syscall-names.list for Linux 5.1.Joseph Myers2019-05-072-2/+53
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch updates syscall-names.list for Linux 5.1 (which has many new syscalls, mainly but not entirely ones for 64-bit time). Tested with build-many-glibcs.py (before the revert of the move to Linux 5.1 there; verified there were no tst-syscall-list failures). * sysdeps/unix/sysv/linux/syscall-names.list: Update kernel version to 5.1. (clock_adjtime64) New syscall. (clock_getres_time64) Likewise. (clock_gettime64) Likewise. (clock_nanosleep_time64) Likewise. (clock_settime64) Likewise. (futex_time64) Likewise. (io_pgetevents_time64) Likewise. (io_uring_enter) Likewise. (io_uring_register) Likewise. (io_uring_setup) Likewise. (mq_timedreceive_time64) Likewise. (mq_timedsend_time64) Likewise. (pidfd_send_signal) Likewise. (ppoll_time64) Likewise. (pselect6_time64) Likewise. (recvmmsg_time64) Likewise. (rt_sigtimedwait_time64) Likewise. (sched_rr_get_interval_time64) Likewise. (semtimedop_time64) Likewise. (timer_gettime64) Likewise. (timer_settime64) Likewise. (timerfd_gettime64) Likewise. (timerfd_settime64) Likewise. (utimensat_time64) Likewise.
* Revert "Use Linux 5.1 in build-many-glibcs.py."Joseph Myers2019-05-072-4/+1
| | | | | | | | | This reverts commit c2b11710fb4a2e8d337ae8f042724143c5ccf173. Linux 5.1 headers are not in fact usable for glibc testing, because "[PATCH] uapi: avoid namespace conflict in linux/posix_types.h" <https://lore.kernel.org/lkml/20190319165123.3967889-1-arnd@arndb.de/> did not get merged for 5.1 and so many conform/ tests fail.
* Use Linux 5.1 in build-many-glibcs.py.Joseph Myers2019-05-072-1/+4
| | | | | * scripts/build-many-glibcs.py (Context.checkout): Default Linux version to 5.1.
* Use GCC 9 in build-many-glibcs.py.Joseph Myers2019-05-072-1/+6
| | | | | * scripts/build-many-glibcs.py (Context.checkout): Default GCC version to 9 branch.
* aarch64: thunderx2 memmove performance improvementsAnton Youdkevitch2019-05-034-362/+227
| | | | | | | | | | | | | | | | | | | | | | | | The performance improvement is about 20%-30% for larger cases and about 1%-5% for smaller cases. Used SIMD load/store instead of GPR for large overlapping forward moves. Reused existing memcpy implementation for smaller or overlapping backward moves. Fixed the existing memcpy implementation to allow it to deal with the overlapping case. Simplified loop tails in the memcpy implementation - use branchless overlapping sequence of fixed length load/stores instead of branching depending on the size. A cleanup/optimization converting str's to stp's. Added __memmove_thunderx2 to the list of the available implementations.
* misc/tst-tsearch: Additional explicit error checkingFlorian Weimer2019-05-032-0/+6
| | | | This avoids an undefined variable warning with certain GCC versions.
* Add missing bug number on CL entry for BZ#24506 (b2af6fb2ed239)Adhemerval Zanella2019-05-021-0/+1
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* elf: Fix elf/tst-pldd with --enable-hardcoded-path-in-tests (BZ#24506)Adhemerval Zanella2019-05-022-3/+22
| | | | | | | | | | | | | | | | | | | | | | | | The elf/tst-pldd (added by 1a4c27355e146 to fix BZ#18035) test does not expect the hardcoded paths that are output by pldd when the test is built with --enable-hardcoded-path-in-tests. Instead of showing the ABI installed library names for loader and libc (such as ld-linux-x86-64.so.2 and libc.so.6 for x86_64), pldd shows the default built ld.so and libc.so. It makes the tests fail with an invalid expected loader/libc name. This patch fixes the elf-pldd test by adding the canonical ld.so and libc.so names in the expected list of possible outputs when parsing the result output from pldd. The test now handles both default build and --enable-hardcoded-path-in-tests option. Checked on x86_64-linux-gnu (built with and without --enable-hardcoded-path-in-tests) and i686-linux-gnu. * elf/tst-pldd.c (in_str_list): New function. (do_test): Add default names for ld and libc as one option. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* misc: Add twalk_r functionFlorian Weimer2019-05-0237-4/+315
| | | | | | | | | The twalk function is very difficult to use in a multi-threaded program because there is no way to pass external state to the iterator function. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Make mktime etc. compatible with __time64_tPaul Eggert2019-04-306-54/+220
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Keep these functions compatible with Gnulib while adding __time64_t support. The basic idea is to move private API declarations from include/time.h to time/mktime-internal.h, since the former file cannot easily be shared with Gnulib whereas the latter can. Also, do some other minor cleanup while in the neighborhood. * include/time.h: Include stdbool.h, time/mktime-internal.h. (__mktime_internal): Move this prototype to time/mktime-internal.h, since Gnulib needs it. (__localtime64_r, __gmtime64_r) [__TIMESIZE == 64]: Move these macros to time/mktime-internal.h, since Gnulib needs them. (__mktime64, __timegm64) [__TIMESIZE != 64]: New prototypes. (in_time_t_range): New static function. * posix/bits/types.h (__time64_t) [__TIMESIZE == 64 && !defined __LIBC]: Do not define as a macro in this case, so that portable code is less tempted to use __time64_t. * time/mktime-internal.h: Rewrite so that it does both glibc and Gnulib work. Include time.h if not _LIBC. (mktime_offset_t) [!_LIBC]: Define for gnulib. (__time64_t, __gmtime64_r, __localtime64_r, __mktime64, __timegm64) [!_LIBC || __TIMESIZE == 64]: New macros, mostly moved here from include/time.h. (__gmtime_r, __localtime_r, __mktime_internal) [!_LIBC]: New macros, taken from GNulib. (__mktime_internal): New prototype, moved here from include/time.h. * time/mktime.c (mktime_min, mktime_max, convert_time) (ranged_convert, __mktime_internal, __mktime64): * time/timegm.c (__timegm64): Use __time64_t, not time_t. * time/mktime.c: Stop worrying about whether time_t is floating-point. (__mktime64) [! (_LIBC && __TIMESIZE != 64)]: Rename from mktime. (mktime) [_LIBC && __TIMESIZE != 64]: New function. * time/timegm.c [!_LIBC]: Include libc-config.h, not config.h, for libc_hidden_def. Include errno.h. (__timegm64) [! (_LIBC && __TIMESIZE != 64)]: Rename from timegm. (timegm) [_LIBC && __TIMESIZE != 64]: New function. First cut at publicizing __time64_t
* Fix -O1 compilation errors with `__ddivl' and `__fdivl' [BZ #19444]Maciej W. Rozycki2019-04-303-0/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Complementing commit 4a06ceea33ec ("sysdeps/ieee754/soft-fp: ignore maybe-uninitialized with -O [BZ #19444]") and commit 27c5e756a2a8 ("sysdeps/ieee754: prevent maybe-uninitialized errors with -O [BZ #19444]") also fix compilation errors observed at -O1 in `__ddivl' and `__fdivl' with GCC 9 and RISC-V targets: In file included from ../soft-fp/soft-fp.h:318, from ../sysdeps/ieee754/soft-fp/s_fdivl.c:27: ../sysdeps/ieee754/soft-fp/s_fdivl.c: In function '__fdivl': ../soft-fp/op-2.h:108:9: error: 'R_f1' may be used uninitialized in this function [-Werror=maybe-uninitialized] 108 | : (X##_f1 << (2*_FP_W_TYPE_SIZE - (N)))) \ | ^ ../sysdeps/ieee754/soft-fp/s_fdivl.c:37:14: note: 'R_f1' was declared here 37 | FP_DECL_Q (R); | ^ ../soft-fp/op-common.h:39:3: note: in expansion of macro '_FP_FRAC_DECL_2' 39 | _FP_FRAC_DECL_##wc (X) | ^~~~~~~~~~~~~~ ../soft-fp/quad.h:226:24: note: in expansion of macro '_FP_DECL' 226 | # define FP_DECL_Q(X) _FP_DECL (2, X) | ^~~~~~~~ ../sysdeps/ieee754/soft-fp/s_fdivl.c:37:3: note: in expansion of macro 'FP_DECL_Q' 37 | FP_DECL_Q (R); | ^~~~~~~~~ ../soft-fp/op-2.h:109:8: error: 'R_f0' may be used uninitialized in this function [-Werror=maybe-uninitialized] 109 | | X##_f0) != 0)); \ | ^ ../sysdeps/ieee754/soft-fp/s_fdivl.c:37:14: note: 'R_f0' was declared here 37 | FP_DECL_Q (R); | ^ ../soft-fp/op-common.h:39:3: note: in expansion of macro '_FP_FRAC_DECL_2' 39 | _FP_FRAC_DECL_##wc (X) | ^~~~~~~~~~~~~~ ../soft-fp/quad.h:226:24: note: in expansion of macro '_FP_DECL' 226 | # define FP_DECL_Q(X) _FP_DECL (2, X) | ^~~~~~~~ ../sysdeps/ieee754/soft-fp/s_fdivl.c:37:3: note: in expansion of macro 'FP_DECL_Q' 37 | FP_DECL_Q (R); | ^~~~~~~~~ In file included from ../soft-fp/soft-fp.h:318, from ../sysdeps/ieee754/soft-fp/s_ddivl.c:31: ../sysdeps/ieee754/soft-fp/s_ddivl.c: In function '__ddivl': ../soft-fp/op-2.h:98:25: error: 'R_f1' may be used uninitialized in this function [-Werror=maybe-uninitialized] 98 | X##_f0 = (X##_f1 << (_FP_W_TYPE_SIZE - (N)) | X##_f0 >> (N) \ | ^~ ../sysdeps/ieee754/soft-fp/s_ddivl.c:41:14: note: 'R_f1' was declared here 41 | FP_DECL_Q (R); | ^ ../soft-fp/op-2.h:37:36: note: in definition of macro '_FP_FRAC_DECL_2' 37 | _FP_W_TYPE X##_f0 _FP_ZERO_INIT, X##_f1 _FP_ZERO_INIT | ^ ../soft-fp/quad.h:226:24: note: in expansion of macro '_FP_DECL' 226 | # define FP_DECL_Q(X) _FP_DECL (2, X) | ^~~~~~~~ ../sysdeps/ieee754/soft-fp/s_ddivl.c:41:3: note: in expansion of macro 'FP_DECL_Q' 41 | FP_DECL_Q (R); | ^~~~~~~~~ ../soft-fp/op-2.h:101:17: error: 'R_f0' may be used uninitialized in this function [-Werror=maybe-uninitialized] 101 | : (X##_f0 << (_FP_W_TYPE_SIZE - (N))) != 0)); \ | ^~ ../sysdeps/ieee754/soft-fp/s_ddivl.c:41:14: note: 'R_f0' was declared here 41 | FP_DECL_Q (R); | ^ ../soft-fp/op-2.h:37:14: note: in definition of macro '_FP_FRAC_DECL_2' 37 | _FP_W_TYPE X##_f0 _FP_ZERO_INIT, X##_f1 _FP_ZERO_INIT | ^ ../soft-fp/quad.h:226:24: note: in expansion of macro '_FP_DECL' 226 | # define FP_DECL_Q(X) _FP_DECL (2, X) | ^~~~~~~~ ../sysdeps/ieee754/soft-fp/s_ddivl.c:41:3: note: in expansion of macro 'FP_DECL_Q' 41 | FP_DECL_Q (R); | ^~~~~~~~~ cc1: all warnings being treated as errors make[2]: *** [.../sysd-rules:587: .../math/s_fdivl.o] Error 1 make[2]: *** Waiting for unfinished jobs.... cc1: all warnings being treated as errors make[2]: *** [.../sysd-rules:587: .../math/s_ddivl.o] Error 1 This comes from cases in _FP_DIV that return a result described as FP_CLS_ZERO or FP_CLS_INF and do not initialize the fractional part, which is then operated on unconditionally in FP_TRUNC_COOKED before being ignored by _FP_PACK_CANONICAL. Clearly at this optimization level GCC cannot guarantee to be able to determine that the fractional part is ultimately unused, so ignore the error as with the earlier commits referred, letting compilation proceed. [BZ #19444] * sysdeps/ieee754/soft-fp/s_ddivl.c (__ddivl): Ignore errors from `-Wmaybe-uninitialized'. * sysdeps/ieee754/soft-fp/s_fdivl.c (__fdivl): Likewise.
* powerpc: ceil/ceilf refactorAdhemerval Zanella2019-04-2934-637/+275
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patches consolidates all the powerpc ceil{f} implementations on the generic sysdeps/powerpc/fpu/s_ceil{f}. The generic implementation uses either the compiler builts for ISA 2.03+ (which generates the frip instruction) or a generic implementation which uses FP only operations. It adds a generic implementation (round_to_integer.h) which is shared with other rounding to integer routines. The resulting code should be similar in term os performance to previous assembly one. The IFUNC organization for powerpc64 is also change to be enabled only for powerpc64 and not for powerpc64le (since minium ISA of 2.08 does not require the fallback generic implementation). Checked on powerpc-linux-gnu (built without --with-cpu, with --with-cpu=power4 and with --with-cpu=power5+ and --disable-multi-arch), powerpc64-linux-gnu (built without --with-cp and with --with-cpu=power5+ and --disable-multi-arch). * sysdeps/powerpc/fpu/fenv_libc.h (__fesetround_inline_nocheck): New function. * sysdeps/powerpc/fpu/round_to_integer.h: New file. * sysdeps/powerpc/fpu/s_ceil.c: Likewise. * sysdeps/powerpc/fpu/s_ceilf.c: Likewise. * sysdeps/powerpc/powerpc32/fpu/s_ceil.S: Remove file. * sysdeps/powerpc/powerpc32/fpu/s_ceilf.S: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile (CFLAGS-s_ceil-power5+.c, CFLAGS-s_ceilf-power5+.c): New rule. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_ceil-power5+.S: Remove file. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_ceil-ppc32.S: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_ceilf-power5+.S: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_ceilf-ppc32.S: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_ceil-power5+.c: New file. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_ceil-ppc32.c: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_ceilf-power5+.c: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_ceilf-ppc32.c: Likewise. * sysdeps/powerpc/powerpc32/power5+/fpu/s_ceil.S: Remove file. * sysdeps/powerpc/powerpc32/power5+/fpu/s_ceilf.S: Likewise. * sysdeps/powerpc/powerpc64/be/fpu/multiarch/Makefile: New file. * sysdeps/powerpc/powerpc64/be/fpu/multiarch/s_ceil-power5+.c: Likewise. * sysdeps/powerpc/powerpc64/be/fpu/multiarch/s_ceil-ppc64.c: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_ceil.c: Move to ... * sysdeps/powerpc/powerpc64/be/fpu/multiarch/s_ceil.c: ... here. * sysdeps/powerpc/powerpc64/be/fpu/multiarch/s_ceilf-power5+.c: New file. * sysdeps/powerpc/powerpc64/be/fpu/multiarch/s_ceilf-ppc64.c: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_ceilf.c: Move to ... * sysdeps/powerpc/powerpc64/be/fpu/multiarch/s_ceilf.c: ... * here. * sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile (libm-sysdep_routines): Remove s_ceil-power5+, s_ceil-ppc64, s_ceilf-power5+, and s_ceilf-ppc64. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_ceil-power5+.S: Remove file. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_ceil-ppc64.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_ceilf-power5+.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_ceilf-ppc64.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_ceil.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_ceilf.S: Likewise. * sysdeps/powerpc/powerpc64/power5+/fpu/s_ceil.S: Likewise. * sysdeps/powerpc/powerpc64/power5+/fpu/s_ceilf.S: Likewise. Reviewed-by: Gabriel F. T. Gomes <gabriel@inconstante.eti.br>
* powerpc: Remove power4 mpa optimizationAdhemerval Zanella2019-04-294-275/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes the POWER4 optimized mpa optimization used currently on all powerpc targets. In fact for newer chips, GCC generates *worse* code than generic implementation as below. One possibilty would to add ifunc variants for the mpa routines (as x86_64), but it will add complexity only for older chips (and one would need to check if power5, power5+, and power6 do benefict from this optimization), and only for specific implementation (since most used one such as sin, cos, exp, pow where optimized to avoid calling the slow multiprecision path). * POWER9 patched $ ./testrun.sh benchtests/bench-atan "atan": { "": { "duration": 5.12565e+09, "iterations": 1.552e+08, "max": 100.552, "min": 7.799, "mean": 33.0261 }, "144bits": { "duration": 5.12745e+09, "iterations": 825000, "max": 7517.17, "min": 6186.3, "mean": 6215.09 } } $ ./testrun.sh benchtests/bench-acos "acos": { "": { "duration": 5.21741e+09, "iterations": 1.269e+08, "max": 191.738, "min": 7.931, "mean": 41.1144 }, "slow": { "duration": 5.25999e+09, "iterations": 198000, "max": 26681.7, "min": 26463.6, "mean": 26565.6 } } * POWER9 master $ ./testrun.sh benchtests/bench-atan "atan": { "": { "duration": 5.12815e+09, "iterations": 1.552e+08, "max": 134.788, "min": 7.803, "mean": 33.0422 }, "144bits": { "duration": 5.1209e+09, "iterations": 447000, "max": 11615.8, "min": 11301.8, "mean": 11456.2 } } $ ./testrun.sh benchtests/bench-acos "acos": { "": { "duration": 5.22272e+09, "iterations": 1.269e+08, "max": 115.981, "min": 7.931, "mean": 41.1562 }, "slow": { "duration": 5.28723e+09, "iterations": 96000, "max": 55434.1, "min": 54820.6, "mean": 55075.3 } } * POWER8 patched $ taskset -c 16 ./testrun.sh benchtests/bench-acos "acos": { "": { "duration": 5.16398e+09, "iterations": 9.99e+07, "max": 174.408, "min": 8.645, "mean": 51.6915 }, "slow": { "duration": 5.16982e+09, "iterations": 96000, "max": 54830.5, "min": 53703.8, "mean": 53852.3 } } * POWER8 master $ taskset -c 16 ./testrun.sh benchtests/bench-acos "acos": { "": { "duration": 5.17019e+09, "iterations": 9.99e+07, "max": 186.127, "min": 8.633, "mean": 51.7537 }, "slow": { "duration": 5.34225e+09, "iterations": 90000, "max": 60353.2, "min": 59155.3, "mean": 59358.4 } } * POWER7 patched $ taskset -c 16 benchtests/bench-asin "asin": { "": { "duration": 5.15559e+09, "iterations": 6.5e+07, "max": 193.335, "min": 12.227, "mean": 79.3168 }, "slow": { "duration": 5.20538e+09, "iterations": 80000, "max": 65705.2, "min": 64299.4, "mean": 65067.3 } } * POWER7 master $ taskset -c 16 benchtests/bench-asin "asin": { "": { "duration": 5.15446e+09, "iterations": 6.5e+07, "max": 184.575, "min": 12.226, "mean": 79.2994 }, "slow": { "duration": 5.20616e+09, "iterations": 80000, "max": 65705.1, "min": 64336.6, "mean": 65076.9 } } Checked on powerpc-linux-gnu (built without --with-cpu, with --with-cpu=power4 and with --with-cpu=power5+ and --disable-multi-arch), powerpc64-linux-gnu (built without --with-cp and with --with-cpu=power5+ and --disable-multi-arch). * sysdeps/powerpc/power4/fpu/Makefile: Remove file. * sysdeps/powerpc/power4/fpu/mpa-arch.h: Likewise. * sysdeps/powerpc/power4/fpu/mpa.c: Likewise. Reviewed-by: Gabriel F. T. Gomes <gabriel@inconstante.eti.br>
* <semaphore.h>: Add nonnull attributesYann Droneaud2019-04-292-10/+20
| | | | | | | | | | | | | | Except the following functions, NPTL implementation assume sem_t argument (or other arguments) are not NULL, so they would benefit from having the nonnull attribute. - sem_close(): can cope with a NULL sem_t and return -1 with error EINVAL; - sem_destroy(): does nothing at all * sysdeps/pthread/semaphore.h (sem_init): Add __nonnull attribute. (sem_destroy, sem_open, sem_close, sem_unlink): Likewise. (sem_wait, sem_timedwait, sem_trywait, sem_post): Likewise. (sem_getvalue): Likewise.
* elf: Link sotruss-lib.so with BIND_NOW for --enable-bind-nowFlorian Weimer2019-04-262-0/+6
| | | | | | | | | The audit module itself can be linked with BIND_NOW; it does not affect its functionality. This should complete the leftovers from commit 2d6ab5df3b675e96ee587ae6a8c2ce004c6b1ba9 ("Document and fix --enable-bind-now [BZ #21015]").
* Makeconfig: Move -Wl,-rpath-link options before library referencesFlorian Weimer2019-04-262-5/+29
| | | | | | | | | | | | | | | | | | | Previously, the -Wl,-rpath-link options came after the libraries injected using LDLIBS-* variables on the link editor command line for main programs. As a result, it could happen that installed libraries that reference glibc libraries used the installed glibc from the system directories, instead of the glibc from the build tree. This can lead to link failures if the wrong version of libpthread.so.0 is used, for instance, due to differences in the internal GLIBC_PRIVATE interfaces, as seen with memusagestat and -lgd after commit f9b645b4b0a10c43753296ce3fa40053fa44606a ("memusagestat: use local glibc when linking [BZ #18465]"). The isolation is necessarily imperfect because these installed libraries are linked against the installed glibc in the system directories. However, in most cases, the built glibc will be newer than the installed glibc, and this link is permitted because of the ABI backwards compatibility glibc provides.
* Makeconfig: Move $(CC) to +link command variablesFlorian Weimer2019-04-262-13/+26
| | | | | | This change is needed to add linker flags which come very early in the command linke (before LDFLAGS) and are not applied to test programs (only to installed programs).
* riscv: remove DL_RO_DYN_SECTIONDavid Abdurachmanov2019-04-252-4/+5
| | | | | | | | | | | | | | While working on enabling D front-end (GDC) in GCC we noticed that druntime was segfaulting if it is linked dynamically. This was tracked to DL_RO_DYN_SECTION. DL_RO_DYN_SECTION lines seem to be copied from MIPS file (which is the only user of it), but the comment doesn't apply to RISC-V. There is no such requirement in RISC-V ABI. [BZ#24484] * sysdeps/riscv/ldsodefs.h: Remove DL_RO_DYN_SECTION as it is not required by RISC-V ABI.
* benchtests: Enable BIND_NOW if configured with --enable-bind-nowFlorian Weimer2019-04-252-2/+17
| | | | | | | | | | | Benchmarks should reflect distribution build policies, so it makes sense to honor the BIND_NOW configuration for them. This commit keeps using $(+link-tests), so that the benchmarks are linked according to the --enable-hardcoded-path-in-tests configure option. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
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