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2018-08-08benchtests: Clean up the alloc_bufsSiddhesh Poyarekar
Drop realloc_bufs in favour of making alloc_bufs transparently reallocate the buffers if it had allocated before. Also consolidate computation of buffer lengths so that they don't get repeated on every reallocation. * benchtests/bench-string.h (buf1_size, buf2_size): New variables. (init_sizes): New function. (test_init): Use it. (alloc_buf, exit_error): New functions. (alloc_bufs): Use ALLOC_BUF. (realloc_bufs): Remove. * benchtests/bench-memcmp.c (do_test): Adjust. * benchtests/bench-memset-large.c (do_test): Likewise. * benchtests/bench-memset-walk.c (do_test): Likewise. * benchtests/bench-memset.c (do_test): Likewise. * benchtests/bench-strncmp.c (do_test): Likewise.
2018-08-06RISC-V: Don't use ps_get_thread_area in libthread_db (bug 23402)Andreas Schwab
Since RISC-V stores the thread pointer in a general register libthread_db can just ask the debugger for the register contents instead of trying to call ps_get_thread_area. This enables thread debugging in gdb. * sysdeps/riscv/nptl/tls.h (DB_THREAD_SELF): Use REGISTER instead of CONST_THREAD_AREA.
2018-08-06x86: Move STATE_SAVE_OFFSET/STATE_SAVE_MASK to sysdep.hH.J. Lu
Move STATE_SAVE_OFFSET and STATE_SAVE_MASK to sysdep.h to make sysdeps/x86/cpu-features.h a C header file. * sysdeps/x86/cpu-features.h (STATE_SAVE_OFFSET): Removed. (STATE_SAVE_MASK): Likewise. Don't check __ASSEMBLER__ to include <cpu-features-offsets.h>. * sysdeps/x86/sysdep.h (STATE_SAVE_OFFSET): New. (STATE_SAVE_MASK): Likewise. * sysdeps/x86_64/dl-trampoline.S: Include <cpu-features-offsets.h> instead of <cpu-features.h>.
2018-08-03Improve ChangeLog message.DJ Delorie
2018-08-03Regen RISC-V rvd ULPsDJ Delorie
* sysdeps/riscv/rv64/rvd/libm-test-ulps: Update. Note: I regen'd these from scratch, but I'm only committing the increases, as I only tested on hardware. There were a few 2->1 decreases that I omitted, possibly "for now".
2018-08-03RISC-V: Fix rounding save/restore bug.DJ Delorie
* sysdeps/riscv/rvf/math_private.h (libc_feholdexcept_setround_riscv): Fix rounding save-restore bug. Fixes about a hundred off-by-ULP failures in the math testsuite.
2018-08-03Consistently terminate libm-test-*.inc TEST lines with commas.Joseph Myers
Some TEST_* lines in libm-test-*.inc end with semicolons not commas. This works at present because gen-libm-test.pl ignores whatever comes after the TEST_* call, but is logically wrong (since the TEST_* calls generate array elements, not statements) and the Python replacement for gen-libm-test.pl that I'm working on is stricter about the syntax here. This patch fixes the lines in question to use commas like most such lines already do. Tested for x86_64. * math/libm-test-ilogb.inc (ilogb_test_data): Use ',' not ';' after TEST_* calls. * math/libm-test-llogb.inc (llogb_test_data): Likewise. * math/libm-test-logb.inc (logb_test_data): Likewise.
2018-08-03Simplify and speedup strstr/strcasestr first matchWilco Dijkstra
Looking at the benchtests, both strstr and strcasestr spend a lot of time in a slow initialization loop handling one character per iteration. This can be simplified and use the much faster strlen/strnlen/strchr/memcmp. Read ahead a few cachelines to reduce the number of strnlen calls, which improves performance by ~3-4%. This patch improves the time taken for the full strstr benchtest by >40%. * string/strcasestr.c (STRCASESTR): Simplify and speedup first match. * string/strstr.c (AVAILABLE): Likewise.
2018-08-03x86: Don't include <init-arch.h> in assembly codesH.J. Lu
There is no need to include <init-arch.h> in assembly codes since all x86 IFUNC selector functions are written in C. Tested on i686 and x86-64. There is no code change in libc.so, ld.so and libmvec.so. * sysdeps/i386/i686/multiarch/bzero-ia32.S: Don't include <init-arch.h>. * sysdeps/x86_64/fpu/multiarch/svml_d_sin8_core-avx2.S: Likewise. * sysdeps/x86_64/fpu/multiarch/svml_s_expf16_core-avx2.S: Likewise. * sysdeps/x86_64/multiarch/memset-sse2-unaligned-erms.S: Likewise.
2018-08-03Update be translations.Carlos O'Donell
2018-08-03Update be translations.Carlos O'Donell
2018-08-03x86: Cleanup cpu-features-offsets.symH.J. Lu
Remove the unused macros. There is no code changes in libc.so nor ld.so on i686 and x86-64. * sysdeps/x86/cpu-features-offsets.sym (rtld_global_ro_offsetof): Removed. (CPU_FEATURES_SIZE): Likewise. (CPUID_OFFSET): Likewise. (CPUID_SIZE): Likewise. (CPUID_EAX_OFFSET): Likewise. (CPUID_EBX_OFFSET): Likewise. (CPUID_ECX_OFFSET): Likewise. (CPUID_EDX_OFFSET): Likewise. (FAMILY_OFFSET): Likewise. (MODEL_OFFSET): Likewise. (FEATURE_OFFSET): Likewise. (FEATURE_SIZ): Likewise. (COMMON_CPUID_INDEX_1): Likewise. (COMMON_CPUID_INDEX_7): Likewise. (FEATURE_INDEX_1): Likewise. (RTLD_GLOBAL_RO_DL_X86_CPU_FEATURES_OFFSET): Updated.
2018-08-02Fix ChangeLog date.Carlos O'Donell
2018-08-02Add convenience target 'install-locale-files'.Carlos O'Donell
The convenience install target 'install-locale-files' is created to allow distributions to install all of the SUPPORTED locales as files instead of into the locale-archive. You invoke the new convenience target like this: make localedata/install-locale-files DESTDIR=<prefix>
2018-08-03[benchtests] Fix compare_strings.py for python2Siddhesh Poyarekar
Python 2 does not have a FileNotFoundError so drop it in favour of simply printing out the last (and most informative) line of the exception. * benchtests/scripts/compare_strings.py: Import traceback. (parse_file): Pretty-print error.
2018-08-02Add ChangeLog for the last commitSiddhesh Poyarekar
2018-08-02Rename the glibc.tune namespace to glibc.cpuSiddhesh Poyarekar
The glibc.tune namespace is vaguely named since it is a 'tunable', so give it a more specific name that describes what it refers to. Rename the tunable namespace to 'cpu' to more accurately reflect what it encompasses. Also rename glibc.tune.cpu to glibc.cpu.name since glibc.cpu.cpu is weird. * NEWS: Mention the change. * elf/dl-tunables.list: Rename tune namespace to cpu. * sysdeps/powerpc/dl-tunables.list: Likewise. * sysdeps/x86/dl-tunables.list: Likewise. * sysdeps/aarch64/dl-tunables.list: Rename tune.cpu to cpu.name. * elf/dl-hwcaps.c (_dl_important_hwcaps): Adjust. * elf/dl-hwcaps.h (GET_HWCAP_MASK): Likewise. * manual/README.tunables: Likewise. * manual/tunables.texi: Likewise. * sysdeps/powerpc/cpu-features.c: Likewise. * sysdeps/unix/sysv/linux/aarch64/cpu-features.c (init_cpu_features): Likewise. * sysdeps/x86/cpu-features.c: Likewise. * sysdeps/x86/cpu-features.h: Likewise. * sysdeps/x86/cpu-tunables.c: Likewise. * sysdeps/x86_64/Makefile: Likewise. * sysdeps/x86/dl-cet.c: Likewise. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2018-08-02Do not define various fenv.h macros for MIPS soft-float (bug 23479).Joseph Myers
MIPS soft-float glibc does not support floating-point exceptions and rounding modes, and uses a different ABI from hard-float so a soft-float compilation cannot use a glibc that does support floating-point exceptions and rounding modes. Thus, bits/fenv.h should not, when compiling for soft-float, define macros for the unsupported features. This patch changes it accordingly to define those macros only for hard-float. None of the exception macros are defined for soft-float, with FE_ALL_EXCEPT defined to 0 in that case, and only FE_TONEAREST is defined of the rounding-mode macros, and FE_NOMASK_ENV is not defined; this is consistent with how architectures lacking exception and rounding mode support generally define things in this header. As well as making the header more correct for this case, this also means the generic math_private.h optimizations for this case automatically apply (inlining libm-internal fenv.h function calls that are trivial when exceptions and rounding modes are not supported). The mips64 sfp-machine.h then needs similar changes to disable more of the exception and rounding mode handling for soft-float. (The mips32 sfp-machine.h is already used only for soft-float, has no integration with hardware exceptions or rounding modes and so needs no changes.) Existing binaries might use the old FE_NOMASK_ENV value as an argument to fesetenv / feupdateenv and expect an error for it (given that it was defined in a header that also defined FE_ALL_EXCEPT to a nonzero value). To preserve that error, wrappers for the fallback fesetenv and feupdateenv are created in sysdeps/mips/nofpu/. Tested for mips64 (hard-float and soft-float, all three ABIs). [BZ #23479] * sysdeps/mips/bits/fenv.h (FE_INEXACT): Define only if [__mips_hard_float]. (FE_UNDERFLOW): Likewise. (FE_OVERFLOW): Likewise. (FE_DIVBYZERO): Likewise. (FE_INVALID): Likewise. (FE_ALL_EXCEPT): Define to 0 if [!__mips_hard_float]. (FE_TOWARDZERO): Define only if [__mips_hard_float]. (FE_UPWARD): Likewise. (FE_DOWNWARD): Likewise. (__FE_UNDEFINED): Define if [!__mips_hard_float] (FE_NOMASK_ENV): Define only if [__mips_hard_float]. * sysdeps/mips/mips64/sfp-machine.h (_FP_DECL_EX): Define only if [__mips_hard_float]. (FP_ROUNDMODE): Likewise. (FP_RND_NEAREST): Likewise. (FP_RND_ZERO): Likewise. (FP_RND_PINF): Likewise. (FP_RND_MINF): Likewise. (FP_EX_INVALID): Likewise. (FP_EX_OVERFLOW): Likewise. (FP_EX_UNDERFLOW): Likewise. (FP_EX_DIVZERO): Likewise. (FP_EX_INEXACT): Likewise. (FP_INIT_ROUNDMODE): Likewise. * sysdeps/mips/nofpu/fesetenv.c: New file. * sysdeps/mips/nofpu/feupdateenv.c: Likewise.
2018-08-01Fix math/test-misc.c for undefined fenv.h macros.Joseph Myers
math/test-misc.c contains some code that uses fenv.h macros FE_UNDERFLOW, FE_OVERFLOW and FE_UPWARD without being conditional on those macros being defined. That would normally break the build for configurations (typically soft-float) not defining those macros. However, the code in question is inside LDBL_MANT_DIG > DBL_MANT_DIG conditionals. And, while we have configurations lacking rounding mode and exception support where LDBL_MANT_DIG > DBL_MANT_DIG (soft-float MIPS64 and RISC-V), those configurations currently define the fenv.h macros in question even for soft-float. There may be some case for defining those macros in cases where a soft-float compilation could use a hard-float libm (where both soft-float and hard-float can use the same ABI, as on ARM and RISC-V, for example). But MIPS is not such a case - the hard-float and soft-float ABIs are incompatible - and thus I am testing a patch to stop defining those macros for soft-float MIPS (motivated by reducing the extent to which architectures need their own definitions of math-tests.h macros - if lack of rounding mode / exception support can be determined by the lack of macros in fenv.h, that avoids the need for math-tests.h to declare that lack as well). Introducing a case of LDBL_MANT_DIG > DBL_MANT_DIG without these macros defined shows up the problem with math/test-misc.c. This patch then fixes that problem by adding appropriate conditionals. Tested for MIPS64 in conjunction with changes to stop defining the macros in question in bits/fenv.h for soft-float. * math/test-misc.c (do_test) [LDBL_MANT_DIG > DBL_MANT_DIG]: Make code using FE_UNDERFLOW conditional on [FE_UNDERFLOW], code using FE_OVERFLOW conditional on [FE_OVERFLOW] and code using FE_UPWARD conditional on [FE_UPWARD].
2018-08-01regex: fix memory leak in GnulibPaul Eggert
Problem and fix reported by Assaf Gordon in: https://lists.gnu.org/r/bug-gnulib/2018-07/txtqLKNwBdefE.txt * posix/regcomp.c (free_charset) [!_LIBC]: Free range_starts and range_ends members too, as they are defined in 'struct re_charset_t' even if not _LIBC. This affects only Gnulib.
2018-08-01x86: Rename get_common_indeces to get_common_indicesH.J. Lu
Reviewed-by: Carlos O'Donell <carlos@redhat.com> * sysdeps/x86/cpu-features.c (get_common_indeces): Renamed to ... (get_common_indices): This. (init_cpu_features): Updated.
2018-08-01Move SNAN_TESTS_PRESERVE_PAYLOAD out of math-tests.h.Joseph Myers
Continuing moving macros out of math-tests.h to smaller headers following typo-proof conventions instead of using #ifndef, this patch moves SNAN_TESTS_PRESERVE_PAYLOAD out to its own sysdeps header. Tested with build-many-glibcs.py. * sysdeps/generic/math-tests-snan-payload.h: New file. * sysdeps/hppa/math-tests-snan-payload.h: Likewise. * sysdeps/mips/math-tests-snan-payload.h: Likewise. * sysdeps/riscv/math-tests-snan-payload.h: Likewise. * sysdeps/generic/math-tests.h: Include <math-tests-snan-payload.h>. (SNAN_TESTS_PRESERVE_PAYLOAD): Do not define macro here. * sysdeps/hppa/math-tests.h: Remove file. * sysdeps/mips/math-tests.h [!__mips_nan2008] (SNAN_TESTS_PRESERVE_PAYLOAD): Do not define macro here. * sysdeps/riscv/math-tests.h (SNAN_TESTS_PRESERVE_PAYLOAD): Likewise.
2018-08-01Move SNAN_TESTS_TYPE_CAST out of math-tests.h.Joseph Myers
The math-tests.h header has many different macros and groups of macros, defined using #ifndef in the generic version which is included by architecture versions with #include_next after possibly defining non-default versions of some of those macros. This use of #ifndef is contrary to our normal typo-proof conventions for macro definitions. This patch moves one of the macros, SNAN_TESTS_TYPE_CAST, out to its own sysdeps header, to follow those typo-proof conventions more closely. Tested with build-many-glibcs.py. 2018-08-01 Joseph Myers <joseph@codesourcery.com> * sysdeps/generic/math-tests-snan-cast.h: New file. * sysdeps/powerpc/math-tests-snan-cast.h: Likewise. * sysdeps/generic/math-tests.h: Include <math-tests-snan-cast.h>. (SNAN_TESTS_TYPE_CAST): Do not define macro here. * sysdeps/powerpc/math-tests.h (SNAN_TESTS_TYPE_CAST): Likewise.
2018-08-01Add version.h, and NEWS update to ChangeLog.Carlos O'Donell
2018-08-01Open master branch for glibc 2.29 developmentglibc-2.28.9000Carlos O'Donell
2018-08-01Update NEWS, version.h, and features.h for glibc 2.28.glibc-2.28Carlos O'Donell
2018-08-01Synchronize translation project PO files.Carlos O'Donell
2018-08-01hurd: Fix exec usage of mach_setup_threadSamuel Thibault
Exec needs that mach_setup_thread does *not* set up TLS since it works on another task, so we have to split this into mach_setup_tls. * mach/mach.h (__mach_setup_tls, mach_setup_tls): Add prototypes. * mach/setup-thread.c (__mach_setup_thread): Move TLS setup to... (__mach_setup_tls): ... new function. (mach_setup_tls): New alias. * hurd/hurdsig.c (_hurdsig_init): Call __mach_setup_tls after __mach_setup_thread. * sysdeps/mach/hurd/profil.c (update_waiter): Likewise. * sysdeps/mach/hurd/setitimer.c (setitimer_locked): Likewise. * mach/Versions [libc] (mach_setup_tls): Add symbol. * sysdeps/mach/hurd/i386/libc.abilist (mach_setup_tls): Likewise.
2018-08-01hurd: Add missing ChangeLog entrySamuel Thibault
2018-07-31hurd: Fix startup of static binaries linked against libpthreadSamuel Thibault
* sysdeps/mach/hurd/i386/init-first.c (init1): Move ELF hdr and TLS initialization... (init): ... before initializing libpthread.
2018-07-31Update tooling versions verified to work with glibc.Carlos O'Donell
2018-07-31Update contrib.texi contributions.Carlos O'Donell
2018-07-31Update translation for be.Carlos O'Donell
2018-07-31Update SH libm-tests-ulpsAdhemerval Zanella
* sysdeps/sh/libm-test-ulps: Update.
2018-07-31Update translations for bg, de, hr, pt_BR, sv, and vi.Carlos O'Donell
2018-07-30x86/CET: Fix property note parser [BZ #23467]H.J. Lu
GNU_PROPERTY_X86_FEATURE_1_AND may not be the first property item. We need to check each property item until we reach the end of the property or find GNU_PROPERTY_X86_FEATURE_1_AND. This patch adds 2 tests. The first test checks if IBT is enabled and the second test reads the output from the first test to check if IBT is is enabled. The second second test fails if IBT isn't enabled properly. Reviewed-by: Carlos O'Donell <carlos@redhat.com> [BZ #23467] * sysdeps/unix/sysv/linux/x86/Makefile (tests): Add tst-cet-property-1 and tst-cet-property-2 if CET is enabled. (CFLAGS-tst-cet-property-1.o): New. (ASFLAGS-tst-cet-property-dep-2.o): Likewise. ($(objpfx)tst-cet-property-2): Likewise. ($(objpfx)tst-cet-property-2.out): Likewise. * sysdeps/unix/sysv/linux/x86/tst-cet-property-1.c: New file. * sysdeps/unix/sysv/linux/x86/tst-cet-property-2.c: Likewise. * sysdeps/unix/sysv/linux/x86/tst-cet-property-dep-2.S: Likewise. * sysdeps/x86/dl-prop.h (_dl_process_cet_property_note): Parse each property item until GNU_PROPERTY_X86_FEATURE_1_AND is found.
2018-07-30x86: Add tst-get-cpu-features-static to $(tests) [BZ #23458]H.J. Lu
All tests should be added to $(tests). Reviewed-by: Carlos O'Donell <carlos@redhat.com> [BZ #23458] * sysdeps/x86/Makefile (tests): Add tst-get-cpu-features-static.
2018-07-28hurd: Fix some ld.so symbol override from libcSamuel Thibault
ld.so symbols to be overriden by libc need to be extern to really get overriden. * sysdeps/mach/hurd/not-errno.h: New file. * sysdeps/mach/hurd/i386/localplt.data: Update accordingly.
2018-07-28hurd: Fix some ld.so symbol override from libcSamuel Thibault
ld.so symbols to be overriden by libc need to be extern to really get overriden. * sysdeps/mach/hurd/dl-unistd.h (__access, __brk, __lseek, __read, __sbrk): Do not set attribute_hidden. * sysdeps/mach/hurd/i386/ld.abilist: Update accordingly. * sysdeps/mach/hurd/i386/localplt.data: Update accordingly.
2018-07-27Update translations for cs, pl, and uk.Carlos O'Donell
2018-07-27x86/CET: Don't parse beyond the note endH.J. Lu
Simply check if "ptr < ptr_end" since "ptr" is always incremented by 8. Reviewed-by: Carlos O'Donell <carlos@redhat.com> * sysdeps/x86/dl-prop.h (_dl_process_cet_property_note): Don't parse beyond the note end.
2018-07-27Update NEWS with ISO 14651 update information.Carlos O'Donell
2018-07-27NEWS: Avoid the words "nominative" and "genitive".Rafal Luzynski
Glibc supports two grammatical forms of month names and we keep adding the locale data which actually use this feature but those two forms are not necessarily nominative and genitive. It is better to use a more generic term. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2018-07-27Fix Linux fcntl OFD locks on unsupported kernelsAdhemerval Zanella
This patch make the OFD tests return unsupported if kernel does not support OFD locks (it was added on 3.15). Checked on a ia64-linux-gnu with Linux 3.14. * sysdeps/unix/sysv/linux/tst-ofdlocks.c: Return unsupported if kernel does not support OFD locks. * sysdeps/unix/sysv/linux/tst-ofdlocks-compat.c: Likewise.
2018-07-27Add the missing ChangeLog entry for commit be525a69a66H.J. Lu
2018-07-27hurd: Fix some ld.so symbol override from libcSamuel Thibault
ld.so symbols to be overriden by libc need to be extern to really get overriden. More fixes are needed to avoid the hidden attribute. * sysdeps/mach/hurd/Versions (libc): Make __access and __access_noerrno external so they can override the ld symbols. (ld): Make __access, __read, __sbrk, __strtoul_internal, __write, __writev, __open64, __access_noerrno extern so they can be overrided. * sysdeps/mach/hurd/i386/libc.abilist: Update accordingly. * sysdeps/mach/hurd/i386/ld.abilist: Update accordingly.
2018-07-26Update libc.pot.Carlos O'Donell
2018-07-26Update powerpc-nofpu ulps.Joseph Myers
* sysdeps/powerpc/nofpu/libm-test-ulps: Update.
2018-07-26x86: Populate COMMON_CPUID_INDEX_80000001 for Intel CPUs [BZ #23459]H.J. Lu
Reviewed-by: Carlos O'Donell <carlos@redhat.com> [BZ #23459] * sysdeps/x86/cpu-features.c (get_extended_indices): New function. (init_cpu_features): Call get_extended_indices for both Intel and AMD CPUs. * sysdeps/x86/cpu-features.h (COMMON_CPUID_INDEX_80000001): Remove "for AMD" comment.
2018-07-26x86: Correct index_cpu_LZCNT [BZ # 23456]H.J. Lu
cpu-features.h has #define bit_cpu_LZCNT (1 << 5) #define index_cpu_LZCNT COMMON_CPUID_INDEX_1 #define reg_LZCNT But the LZCNT feature bit is in COMMON_CPUID_INDEX_80000001: Initial EAX Value: 80000001H ECX Extended Processor Signature and Feature Bits: Bit 05: LZCNT available index_cpu_LZCNT should be COMMON_CPUID_INDEX_80000001, not COMMON_CPUID_INDEX_1. The VMX feature bit is in COMMON_CPUID_INDEX_1: Initial EAX Value: 01H Feature Information Returned in the ECX Register: 5 VMX Reviewed-by: Carlos O'Donell <carlos@redhat.com> [BZ # 23456] * sysdeps/x86/cpu-features.h (index_cpu_LZCNT): Set to COMMON_CPUID_INDEX_80000001.
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