glibc

Commit Graph

Author	SHA1	Message	Date
Szabolcs Nagy	69499bb6ee	aarch64: free tlsdesc data on dlclose [BZ #27403 ] DL_UNMAP_IS_SPECIAL and DL_UNMAP were not defined. The definitions are now copied from arm, since the same is needed on aarch64. The cleanup of tlsdesc data is handled by the custom _dl_unmap. Fixes bug 27403.	5 years ago
Adhemerval Zanella	edb0ba79a1	ia64: Update ulps Required after `9acda61d94` "Fix the inaccuracy of j0f/j1f/y0f/y1f [BZ #14469, #14470, #14471, #14472]" and `db3f7bb558` "math: Remove slow paths from asin and acos [BZ #15267]".	5 years ago
Adhemerval Zanella	52c512bc56	ia64: Fix build after `9acda61d94` The j0f/j1f/y0f/y1f now uses __inv_pio4 and call roundf (which turns to __roundf on ia64).	5 years ago
Adhemerval Zanella	1d64e962ab	i386: Update ulps Required after `9acda61d94` "Fix the inaccuracy of j0f/j1f/y0f/y1f [BZ #14469, #14470, #14471, #14472]".	5 years ago
Paul Zimmermann	9acda61d94	Fix the inaccuracy of j0f/j1f/y0f/y1f [BZ #14469 , #14470 , #14471 , #14472 ] For j0f/j1f/y0f/y1f, the largest error for all binary32 inputs is reduced to at most 9 ulps for all rounding modes. The new code is enabled only when there is a cancellation at the very end of the j0f/j1f/y0f/y1f computation, or for very large inputs, thus should not give any visible slowdown on average. Two different algorithms are used: * around the first 64 zeros of j0/j1/y0/y1, approximation polynomials of degree 3 are used, computed using the Sollya tool (https://www.sollya.org/) * for large inputs, an asymptotic formula from [1] is used [1] Fast and Accurate Bessel Function Computation, John Harrison, Proceedings of Arith 19, 2009. Inputs yielding the new largest errors are added to auto-libm-test-in, and ulps are regenerated for various targets (thanks Adhemerval Zanella). Tested on x86_64 with --disable-multi-arch and on powerpc64le-linux-gnu. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>	5 years ago
Sunil K Pandey	595c22ecd8	x86-64: Fix ifdef indentation in strlen-evex.S Fix some indentations of ifdef in file strlen-evex.S which are off by 1 and confusing to read.	5 years ago
Joseph Myers	e21b7c87e8	Update Nios II libm-test-ulps.	5 years ago
Adhemerval Zanella	a4dceb2684	socket: Add CFLAGS-accept.c and CFLAGS-connect.c The `c59f716993` (accept) and `3ddf9bc185` (connect) added on io/Makefile instead of socket/Makefile. Checked on arm-linux-gnueabihf (where without the flags both the tst-cancelx4 and tst-cancelx5 fails).	5 years ago
Adhemerval Zanella	be60d70166	Update arm libm-tests-ulps Required after `db3f7bb558` "math: Remove slow paths from asin and acos [BZ #15267]".	5 years ago
Adhemerval Zanella	4d8cf564a2	support: Fix hurd build after `bfddda2570`	5 years ago
H.J. Lu	b1ec623ed5	x86_64: Correct THREAD_SETMEM/THREAD_SETMEM_NC for movq [BZ #27591 ] config/i386/constraints.md in GCC has (define_constraint "e" "32-bit signed integer constant, or a symbolic reference known to fit that range (for immediate operands in sign-extending x86-64 instructions)." (match_operand 0 "x86_64_immediate_operand")) Since movq takes a signed 32-bit immediate or a register source operand, use "er", instead of "nr"/"ir", constraint for 32-bit signed integer constant or register on movq. Reviewed-by: Carlos O'Donell <carlos@redhat.com>	5 years ago
Andreas Schwab	5ccea9a011	powerpc64le: Use ifunc for _Float128 functions also in libc This fixes missing definition of math functions in libc in a static link that are no longer built for libm after commit `4898d9712b` ("Avoid adding duplicated symbols into static libraries").	5 years ago
Stefan Liebler	01e0451175	S390: Allow "v" constraint for long double math_opt_barrier and math_force_eval with GCC 11. Starting with GCC 11, long double values can also be processed in vector registers if build with -march >= z14. Then GCC defines the __LONG_DOUBLE_VX__ macro. FYI: GCC commit "IBM Z: Introduce __LONG_DOUBLE_VX__ macro" https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=f47df2af313d2ce7f9149149010a142c2237beda	5 years ago
Paul Eggert	a0bf2897ce	io: fix spelling typo in diagnostic	5 years ago
$Alejandro Colomar $man-pages$$ Alejandro Colomar $man-pages$	8786bf6eb6	stdio-common/printf-prs.c: Reword comment 'this' can be understood as the current parameter, but in this case it is meaning the other one, the one holding the width/precission. 'it' better describes that parameter, differentiating it from the one corresponding to the current specifier. Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>	5 years ago
Adhemerval Zanella	bfddda2570	io: Check at runtime if timestamp supports nanoseconds Now that non-LFS stat function is implemented on to on LFS, it will use statx when available. It allows to check for nanosecond timestamp if the kernel supports __NR_statx. Checked on s390-linux-gnu with 4.12.14 kernel.	5 years ago
Stefan Liebler	18f0afa848	Fix conform linknamespace tests due to gnu_dev_makedev If building on s390 / i686 with -Os, various conformance tests are failing with e.g. conform/ISO/assert.h/linknamespace.out: [initial] __assert_fail -> [libc.a(assert.o)] __dcgettext -> [libc.a(dcgettext.o)] __dcigettext -> [libc.a(dcigettext.o)] __getcwd -> [libc.a(getcwd.o)] __fstatat64 -> [libc.a(fstatat64.o)] gnu_dev_makedev The usage of gnu_dev_makedev was recently introduced by usage of the makedev makro in commit: `5b980d4809` linux: Use statx for MIPSn64 This patch is now linking against __gnu_dev_makedev as also done in commit: `8b4a118222` Fix -Os gnu_dev_* linknamespace, localplt issues (bug 15105, bug 19463).	5 years ago
Alyssa Ross	4d8d70d301	manual: clarify that scanf %n supports type modifiers My initial reading of the %n documentation was that it didn't support type conversions, because it only mentioned int*. Corresponding man-pages patch: https://lore.kernel.org/linux-man/20210328215509.31666-1-hi@alyssa.is/ Reviewed-by: Arjun Shankar <arjun@redhat.com>	5 years ago
Adhemerval Zanella	42624c7dc7	Update sparc libm-tests-ulps Required after `db3f7bb558` "math: Remove slow paths from asin and acos [BZ #15267]".	5 years ago
Siddhesh Poyarekar	290f8294a6	libio: Update license on test case About a decade ago, I accidentally wrote the GPLv3 license text on the test case when the rest of glibc source is LGPL v2.1 or later. As original author of the test (and there are no other legally significant changes to the test) I propose to update the license text to be consistent with the project. Reviewed-by: Carlos O'Donell <carlos@redhat.com>	5 years ago
Siddhesh Poyarekar	4898d9712b	Avoid adding duplicated symbols into static libraries Some math functions (such as __isnan*) are built into both libm and libc because they are needed in libc. The symbol gets exported from libc.so and not libm.so, because of which dynamic linking works fine; the symbols are always resolved from libc.so and libm.so uses its internal copy of the same function if needed. When linking statically though, the libm variants get used throughout because the symbols are exported in both archives and libm.a is searched first. This patch removes these duplicate objects from the libm.a archive so that programs always link to libc in both, the static and dynamic case. The difference this will cause is that libm uses of these functions will start using the libc versions in the !SHARED case. This is harmless at the moment because the objects are identical except for their names. Some of these duplicates could be removed from libm.so too, but I avoided that in the interest of retaining an internal reference if at all those functions get used within libm in future. Reviewed-by: Paul Zimmermann <Paul.Zimmermann@inria.fr>	5 years ago
Siddhesh Poyarekar	abadbef5c8	Move __isnanf128 to libc.so All of the isnan functions are in libc.so due to printf_fp, so move __isnanf128 there too for consistency. Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@ascii.art.br> Reviewed-by: Florian Weimer <fweimer@redhat.com>	5 years ago
Samuel Thibault	64786a7090	fork.h: replace with register-atfork.h UNREGISTER_ATFORK is now defined for all ports in register-atfork.h, so most previous includes of fork.h actually only need register-atfork.h now, and cxa_finalize.c does not need an ifdef UNREGISTER_ATFORK any more. The nptl-specific fork generation counters can then go to pthreadP.h, and fork.h be removed. Checked on x86_64-linux-gnu and i686-gnu. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>	5 years ago
H.J. Lu	e4fda46310	x86-64: Use ZMM16-ZMM31 in AVX512 memmove family functions Update ifunc-memmove.h to select the function optimized with AVX512 instructions using ZMM16-ZMM31 registers to avoid RTM abort with usable AVX512VL since VZEROUPPER isn't needed at function exit.	5 years ago
H.J. Lu	4e2d8f3527	x86-64: Use ZMM16-ZMM31 in AVX512 memset family functions Update ifunc-memset.h/ifunc-wmemset.h to select the function optimized with AVX512 instructions using ZMM16-ZMM31 registers to avoid RTM abort with usable AVX512VL and AVX512BW since VZEROUPPER isn't needed at function exit.	5 years ago
H.J. Lu	4bd660be40	x86: Add string/memory function tests in RTM region At function exit, AVX optimized string/memory functions have VZEROUPPER which triggers RTM abort. When such functions are called inside a transactionally executing RTM region, RTM abort causes severe performance degradation. Add tests to verify that string/memory functions won't cause RTM abort in RTM region.	5 years ago
H.J. Lu	7ebba91361	x86-64: Add AVX optimized string/memory functions for RTM Since VZEROUPPER triggers RTM abort while VZEROALL won't, select AVX optimized string/memory functions with xtest jz 1f vzeroall ret 1: vzeroupper ret at function exit on processors with usable RTM, but without 256-bit EVEX instructions to avoid VZEROUPPER inside a transactionally executing RTM region.	5 years ago
H.J. Lu	91264fe357	x86-64: Add memcmp family functions with 256-bit EVEX Update ifunc-memcmp.h to select the function optimized with 256-bit EVEX instructions using YMM16-YMM31 registers to avoid RTM abort with usable AVX512VL, AVX512BW and MOVBE since VZEROUPPER isn't needed at function exit.	5 years ago
H.J. Lu	1b968b6b9b	x86-64: Add memset family functions with 256-bit EVEX Update ifunc-memset.h/ifunc-wmemset.h to select the function optimized with 256-bit EVEX instructions using YMM16-YMM31 registers to avoid RTM abort with usable AVX512VL and AVX512BW since VZEROUPPER isn't needed at function exit.	5 years ago
H.J. Lu	63ad43566f	x86-64: Add memmove family functions with 256-bit EVEX Update ifunc-memmove.h to select the function optimized with 256-bit EVEX instructions using YMM16-YMM31 registers to avoid RTM abort with usable AVX512VL since VZEROUPPER isn't needed at function exit.	5 years ago
H.J. Lu	525bc2a32c	x86-64: Add strcpy family functions with 256-bit EVEX Update ifunc-strcpy.h to select the function optimized with 256-bit EVEX instructions using YMM16-YMM31 registers to avoid RTM abort with usable AVX512VL and AVX512BW since VZEROUPPER isn't needed at function exit.	5 years ago
H.J. Lu	1fd8c163a8	x86-64: Add ifunc-avx2.h functions with 256-bit EVEX Update ifunc-avx2.h, strchr.c, strcmp.c, strncmp.c and wcsnlen.c to select the function optimized with 256-bit EVEX instructions using YMM16-YMM31 registers to avoid RTM abort with usable AVX512VL, AVX512BW and BMI2 since VZEROUPPER isn't needed at function exit. For strcmp/strncmp, prefer AVX2 strcmp/strncmp if Prefer_AVX2_STRCMP is set.	5 years ago
H.J. Lu	1da50d4bda	x86: Set Prefer_No_VZEROUPPER and add Prefer_AVX2_STRCMP 1. Set Prefer_No_VZEROUPPER if RTM is usable to avoid RTM abort triggered by VZEROUPPER inside a transactionally executing RTM region. 2. Since to compare 2 32-byte strings, 256-bit EVEX strcmp requires 2 loads, 3 VPCMPs and 2 KORDs while AVX2 strcmp requires 1 load, 2 VPCMPEQs, 1 VPMINU and 1 VPMOVMSKB, AVX2 strcmp is faster than EVEX strcmp. Add Prefer_AVX2_STRCMP to prefer AVX2 strcmp family functions.	5 years ago
Paul Zimmermann	934d88d862	add workload traces for missing functions (double format) This patch adds workload traces for all double format functions where such files are missing. For each function, a set of 1000 random values is generated at random using SageMath, such that the output values are meaningful (for example avoiding too large inputs for exp10 where the output would be +Inf). More details about the generated values are given at the beginning of each file. Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>	5 years ago
Adhemerval Zanella	f8466cc504	linux: Add y2106 support on utimensat tests The tests are refactored to use a common skeleton that handles whether the underlying filesystem supports 64 bit time, skips 64 bit time tests when the TU only supports 32 bit, and also skip 64 bit time tests larger than 32 unsigned int (y2106) if the system does not support it (MIPSn64 on kernels without statx support). Checked on x86_64-linux-gnu and i686-linux-gnu. I also checked on a mips64el-linux-gnu with 4.1.4 and 5.10.0-4-5kc-malta kernel to verify if the y2106 are indeed skipped.	5 years ago
Adhemerval Zanella	6fbc0540de	support: Add support_path_support_time64_value It allows to check for support on arbitrary timestamp values.	5 years ago
Adhemerval Zanella	5b980d4809	linux: Use statx for MIPSn64 MIPSn64 kernel ABI for legacy stat uses unsigned 32 bit for second timestamp, which limits the maximum value to y2106. This patch make mips64 use statx as for 32-bit architectures. Thie __cp_stat64_t64_statx is open coded, its usage is solely on fstatat64 and it avoid the need to redefine the name for mips64 (which will call __cp_stat64_statx since its does not use __stat64_t64 internally).	5 years ago
Adhemerval Zanella	1fbffbda36	linux: Disable fstatat64 fallback if __ASSUME_STATX is defined If the minimum kernel supports statx there is no need to call the fallback stat legacy syscalls. The statx is also called on compat xstat syscall, but different than the fstatat it calls no fallback and it is assumed to be always present. Checked on powerpc-linux-gnu (with and without --enable-kernel=4.11) and on powerpc64-linux-gnu.	5 years ago
Adhemerval Zanella	4c4e90ccf8	linux: Implement fstatat with __fstatat64_time64 It makes fstatat use __NR_statx, which fix the s390 issue with missing nanoxsecond support on compat stat syscalls (at least on recent kernels) and limits the statx call to only one function (which simplifies the __ASSUME_STATX support). Checked on i686-linux-gnu and on powerpc-linux-gnu.	5 years ago
H.J. Lu	27f7463675	x86: Properly disable XSAVE related features [BZ #27605 ] 1. Support GLIBC_TUNABLES=glibc.cpu.hwcaps=-XSAVE. 2. Disable all features which depend on XSAVE: a. If OSXSAVE is disabled by glibc tunables. Or b. If both XSAVE and XSAVEC aren't usable.	5 years ago
H.J. Lu	cb882b21b6	test-strnlen.c: Check that strnlen won't go beyond the maximum length Place strings ending at page boundary without the null byte. If an implementation goes beyond EXP_LEN, it will trigger the segfault.	5 years ago
H.J. Lu	86859b7e58	test-strnlen.c: Initialize wchar_t string with wmemset [BZ #27655 ] Use wmemset to initialize wchar_t string.	5 years ago
Adhemerval Zanella	7ab232e081	nptl: Remove unused rules The wrapper are not exported by libpthread.	5 years ago
Adhemerval Zanella	09ce31eddf	nptl: Remove __libc_allocate_rtsig, __libc_current_sigrtmax, and __libc_current_sigrtmin The libc version is identical and built with same flags. Checked on x86_64-linux-gnu.	5 years ago
Adhemerval Zanella	70a1e36cbe	nptl: Move sigaction to libc The libc version is identical and built with same flags. Checked on x86_64-linux-gnu.	5 years ago
Adhemerval Zanella	ff1e342cd1	nptl: Remove pthread raise implementation The Linux version already target the current thread by using tgkill along with getpid and gettid. For arm, libpthread does not do a intra PLT since it will call the raise from libc. Checked on x86_64-linux-gnu.	5 years ago
Adhemerval Zanella	b76658451c	nptl: Move pthread_kill to libc A new 2.34 version is also provided. Checked on x86_64-linux-gnu.	5 years ago
Adhemerval Zanella	dd10230fd8	nptl: Remove sigsuspend from pthread-compat-wrappers The symbol is not exported by libpthread.	5 years ago
Adhemerval Zanella	ea8966b965	nptl: Remove msgrcv from pthread-compat-wrappers The symbol is not exported by libpthread.	5 years ago
Adhemerval Zanella	8562794d11	nptl: Remove msgsnd from pthread-compat-wrappers The symbol is not exported by libpthread.	5 years ago

1 2 3 4 5 ...

37031 Commits (69499bb6eeb4f5d1b3502758208301d21042a783) All Branches Search

37031 Commits (69499bb6eeb4f5d1b3502758208301d21042a783)

All Branches