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* New exp10f version without SVID compat wrapperAdhemerval Zanella2020-06-1930-4/+56
| | | | | | | | | | | | | | | | | | | | | | | This patch changes the exp10f error handling semantics to only set errno according to POSIX rules. New symbol version is introduced at GLIBC_2.32. The old wrappers are kept for compat symbols. There are some outliers that need special handling: - ia64 provides an optimized implementation of exp10f that uses ia64 specific routines to set SVID compatibility. The new symbol version is aliased to the exp10f one. - m68k also provides an optimized implementation, and the new version uses it instead of the sysdeps/ieee754/flt32 one. - riscv and csky uses the generic template implementation that does not provide SVID support. For both cases a new exp10f version is not added, but rather the symbols version of the generic sysdeps/ieee754/flt32 is adjusted instead. Checked on aarch64-linux-gnu, x86_64-linux-gnu, i686-linux-gnu, powerpc64le-linux-gnu.
* i386: Use generic exp10fAdhemerval Zanella2020-06-191-54/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The generic implementation is twice as fast. Using the exp10f benchmark: * master: "exp10f": { "workload-spec2017.wrf (adapted)": { "duration": 1.02967e+09, "iterations": 4.768e+07, "reciprocal-throughput": 18.3579, "latency": 24.8331, "max-throughput": 5.44725e+07, "min-throughput": 4.02688e+07 } } * patched: "exp10f": { "workload-spec2017.wrf (adapted)": { "duration": 1.01821e+09, "iterations": 6.1984e+07, "reciprocal-throughput": 13.1975, "latency": 19.6563, "max-throughput": 7.57719e+07, "min-throughput": 5.08743e+07 } } Checked on i686-linux-gnu.
* math: Optimized generic exp10f with wrappersPaul Zimmermann2020-06-192-1/+199
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is inspired by expf and reuses its tables and internal functions. The error checks are inlined and errno setting is in separate tail called functions, but the wrappers are kept in this patch to handle the _LIB_VERSION==_SVID_ case. Double precision arithmetics is used which is expected to be faster on most targets (including soft-float) than using single precision and it is easier to get good precision result with it. Result for x86_64 (i7-4790K CPU @ 4.00GHz) are: Before new code: "exp10f": { "workload-spec2017.wrf (adapted)": { "duration": 4.0414e+09, "iterations": 1.00128e+08, "reciprocal-throughput": 26.6818, "latency": 54.043, "max-throughput": 3.74787e+07, "min-throughput": 1.85038e+07 } With new code: "exp10f": { "workload-spec2017.wrf (adapted)": { "duration": 4.11951e+09, "iterations": 1.23968e+08, "reciprocal-throughput": 21.0581, "latency": 45.4028, "max-throughput": 4.74876e+07, "min-throughput": 2.20251e+07 } Result for aarch64 (A72 @ 2GHz) are: Before new code: "exp10f": { "workload-spec2017.wrf (adapted)": { "duration": 4.62362e+09, "iterations": 3.3376e+07, "reciprocal-throughput": 127.698, "latency": 149.365, "max-throughput": 7.831e+06, "min-throughput": 6.69501e+06 } With new code: "exp10f": { "workload-spec2017.wrf (adapted)": { "duration": 4.29108e+09, "iterations": 6.6752e+07, "reciprocal-throughput": 51.2111, "latency": 77.3568, "max-throughput": 1.9527e+07, "min-throughput": 1.29271e+07 } Checked on x86_64-linux-gnu, powerpc64le-linux-gnu, aarch64-linux-gnu, and sparc64-linux-gnu.
* x86: Update F16C detection [BZ #26133]H.J. Lu2020-06-182-3/+7
| | | | Since F16C requires AVX, set F16C usable only when AVX is usable.
* Fix avx2 strncmp offset compare condition check [BZ #25933]Sunil K Pandey2020-06-171-0/+15
| | | | | | | | | strcmp-avx2.S: In avx2 strncmp function, strings are compared in chunks of 4 vector size(i.e. 32x4=128 byte for avx2). After first 4 vector size comparison, code must check whether it already passed the given offset. This patch implement avx2 offset check condition for strncmp function, if both string compare same for first 4 vector size.
* x86_64: Use %xmmN with vpxor to clear a vector registerH.J. Lu2020-06-172-3/+3
| | | | | Since "vpxor %xmmN, %xmmN, %xmmN" clears the whole vector register, use %xmmN, instead of %ymmN, with vpxor to clear a vector register.
* x86: Correct bit_cpu_CLFLUSHOPT [BZ #26128]H.J. Lu2020-06-171-1/+1
| | | | bit_cpu_CLFLUSHOPT should be (1u << 23), not (1u << 22).
* powerpc64le: refactor e_sqrtf128.cPaul E. Murphy2020-06-162-39/+7
| | | | | Combine both implementations into a single file to allow building twice with appropriate multiarch support when possible.
* Update syscall-names.list for Linux 5.7.Joseph Myers2020-06-151-2/+2
| | | | | | | Linux 5.7 has no new syscalls. Update the version number in syscall-names.list to reflect that it is still current for 5.7. Tested with build-many-glibcs.py.
* ieee754/dbl-64: Reduce the scope of temporary storage variablesVineet Gupta2020-06-157-223/+193
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This came to light when adding hard-flaot support to ARC glibc port without hardware sqrt support causing glibc build to fail: | ../sysdeps/ieee754/dbl-64/e_sqrt.c: In function '__ieee754_sqrt': | ../sysdeps/ieee754/dbl-64/e_sqrt.c:58:54: error: unused variable 'ty' [-Werror=unused-variable] | double y, t, del, res, res1, hy, z, zz, p, hx, tx, ty, s; The reason being EMULV() macro uses the hardware provided __builtin_fma() variant, leaving temporary variables 'p, hx, tx, hy, ty' unused hence compiler warning and ensuing error. The intent of the patch was to fix that error, but EMULV is pervasive and used fair bit indirectly via othe rmacros, hence this patch. Functionally it should not result in code gen changes and if at all those would be better since the scope of those temporaries is greatly reduced now Built tested with aarch64-linux-gnu arm-linux-gnueabi arm-linux-gnueabihf hppa-linux-gnu x86_64-linux-gnu arm-linux-gnueabihf riscv64-linux-gnu-rv64imac-lp64 riscv64-linux-gnu-rv64imafdc-lp64 powerpc-linux-gnu microblaze-linux-gnu nios2-linux-gnu hppa-linux-gnu Also as suggested by Joseph [1] used --strip and compared the libs with and w/o patch and they are byte-for-byte unchanged (with gcc 9). | for i in `find . -name libm-2.31.9000.so`; | do | echo $i; diff $i /SCRATCH/vgupta/gnu2/install/glibcs/$i ; echo $?; | done | ./aarch64-linux-gnu/lib64/libm-2.31.9000.so | 0 | ./arm-linux-gnueabi/lib/libm-2.31.9000.so | 0 | ./x86_64-linux-gnu/lib64/libm-2.31.9000.so | 0 | ./arm-linux-gnueabihf/lib/libm-2.31.9000.so | 0 | ./riscv64-linux-gnu-rv64imac-lp64/lib64/lp64/libm-2.31.9000.so | 0 | ./riscv64-linux-gnu-rv64imafdc-lp64/lib64/lp64/libm-2.31.9000.so | 0 | ./powerpc-linux-gnu/lib/libm-2.31.9000.so | 0 | ./microblaze-linux-gnu/lib/libm-2.31.9000.so | 0 | ./nios2-linux-gnu/lib/libm-2.31.9000.so | 0 | ./hppa-linux-gnu/lib/libm-2.31.9000.so | 0 | ./s390x-linux-gnu/lib64/libm-2.31.9000.so [1] https://sourceware.org/pipermail/libc-alpha/2019-November/108267.html
* hurd: Fix __writev_nocancel_nostatusSamuel Thibault2020-06-145-2/+46
| | | | | | | | | | | | | * sysdeps/mach/hurd/Makefile [subdir=misc] (sysdep_routines): Add writev_nocancel writev_nocancel_nostatus. * sysdeps/mach/hurd/not-cancel.h (__writev_nocancel_nostatus): Replace macro with function declaration (with hidden prototype in libc). (__writev_nocancel): New function declaration (with hidden prototype in libc). * sysdeps/mach/hurd/writev_nocancel_nostatus.c: New file. * sysdeps/posix/writev_nocancel.c: New file, includes writev.c to make a nocancel variant that calls __write_nocancel. * sysdeps/posix/writev.c (writev): Do not define alias if __writev is renamed.
* hurd: Make send* cancellation pointsSamuel Thibault2020-06-143-0/+10
| | | | | | | * sysdeps/mach/hurd/send.c (__send): Make the __socket_send call a cancellation point. * sysdeps/mach/hurd/sendto.c (__sendto): Likewise. * sysdeps/mach/hurd/sendmsg.c (__libc_sendmsg): Likewise.
* htl: Enable more cancellation testsSamuel Thibault2020-06-145-3/+244
| | | | | | | | * nptl/tst-cancel-self-cancelstate.c, tst-cancel-self.c, tst-cancel9.c, tst-cancelx9.c: Move to... * sysdeps/pthread: ... here. * nptl/Makefile: Move corresponding references and rules to... * sysdeps/pthread/Makefile: ... here.
* hurd: Make write and pwrite64 cancellation pointsSamuel Thibault2020-06-149-19/+94
| | | | | | | | | | | | | | | | | | | | | | | | | and add _nocancel variants. * sysdeps/mach/hurd/write.c (__libc_write): Call __write_nocancel surrounded by enabling async cancel, to replace implementation moved to... * sysdeps/mach/hurd/write_nocancel.c (__write_nocancel): ... here. * sysdeps/mach/hurd/pwrite64.c (__libc_pwrite64): Call __pwrite64_nocancel surrounded by enabling async cancel, to replace implementation moved to... * sysdeps/mach/hurd/pwrite64_nocancel.c (__pwrite64_nocancel): ... here. * sysdeps/mach/hurd/Makefile (sysdep_routines): Add write_nocancel and pwrite64_nocancel. * sysdeps/mach/hurd/not-cancel.h (__write_nocancel, __pwrite64_nocancel): Replace macros with prototypes with a hidden proto on libc. * sysdeps/mach/hurd/dl-sysdep.c (__write_nocancel): New alias, check that it is not hidden. * sysdeps/mach/hurd/Versions (libc.GLIBC_PRIVATE): Add __write_nocancel. (ld.GLIBC_PRIVATE): Add __write_nocancel. * sysdeps/mach/hurd/i386/localplt.data (__write_nocancel): Add reference.
* htl: Fix cleanup support for IO lockingSamuel Thibault2020-06-142-0/+90
| | | | | | | | | | * sysdeps/htl/stdio-lock.h: New file, registers locking cleanup to htl. * sysdeps/htl/libc-lockP.h: Include <libc-lock.h>. (__libc_cleanup_region_start, __libc_cleanup_end, __libc_cleanup_region_end): Override macros from <libc-lock.h> with versions which register cleanup to htl. (__pthread_get_cleanup_stack): Make reference weak for skipping registration on in the static non-libpthread case.
* htl: Add noreturn attribute on __pthread_exit forwardSamuel Thibault2020-06-141-2/+2
| | | | | | | * sysdeps/htl/pthread-functions.h (__pthread_exit): Add noreturn attribute. (struct pthread_functions): Add noreturn attribute on ptr___pthread_exit field.
* hurd: Make recv* cancellation pointsSamuel Thibault2020-06-143-12/+38
| | | | | | | | | | * sysdeps/mach/hurd/recv.c (__recv): Make the __socket_recv call cancellable. * sysdeps/mach/hurd/recvfrom.c (__recvfrom): Make the __socket_recv and __socket_whatis_address calls cancellable. * sysdeps/mach/hurd/recvmsg.c (__libc_recvmsg): Make the __socket_recv, __socket_whatis_address, __io_reauthenticate, and __auth_user_authenticate calls cancellable.
* powerpc: Automatic CPU detection in preconfigurePaul E. Murphy2020-06-112-7/+113
| | | | | | | | | Added a check to detect the CPU value in preconfigure, so that glibc is built with the correct --with-cpu value. And move existing checks into preconfigure.ac. Co-Authored-By: Carlos Eduardo Seo <cseo@linux.vnet.ibm.com> Co-Authored-By: Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com>
* htl: Enable more cancel testsSamuel Thibault2020-06-108-6/+513
| | | | | | | * nptl/tst-cancel11.c, tst-cancel21-static.c, tst-cancel21.c, tst-cancel6.c, tst-cancelx11.c, tst-cancelx21.c, tst-cancelx6.c: Move to... * sysdeps/pthread: ... here. * nptl/Makefile: Move corresponding references and rules to... * sysdeps/pthread/Makefile: ... here.
* aarch64: MTE compatible strlenAndrea Corallo2020-06-091-183/+56
| | | | | | | | | | | | | | | | Introduce an Arm MTE compatible strlen implementation. The existing implementation assumes that any access to the pages in which the string resides is safe. This assumption is not true when MTE is enabled. This patch updates the algorithm to ensure that accesses remain within the bounds of an MTE tag (16-byte chunks) and improves overall performance on modern cores. On cores with less efficient Advanced SIMD implementation such as Cortex-A53 it can be slower. Benchmarked on Cortex-A72, Cortex-A53, Neoverse N1. Co-authored-by: Wilco Dijkstra <wilco.dijkstra@arm.com>
* aarch64: MTE compatible strchrAndrea Corallo2020-06-091-91/+71
| | | | | | | | | | | | | | Introduce an Arm MTE compatible strchr implementation. The existing implementation assumes that any access to the pages in which the string resides is safe. This assumption is not true when MTE is enabled. This patch updates the algorithm to ensure that accesses remain within the bounds of an MTE tag (16-byte chunks) and improves overall performance. Benchmarked on Cortex-A72, Cortex-A53, Neoverse N1. Co-authored-by: Wilco Dijkstra <wilco.dijkstra@arm.com>
* aarch64: MTE compatible strchrnulAndrea Corallo2020-06-091-85/+51
| | | | | | | | | | | | | | Introduce an Arm MTE compatible strchrnul implementation. The existing implementation assumes that any access to the pages in which the string resides is safe. This assumption is not true when MTE is enabled. This patch updates the algorithm to ensure that accesses remain within the bounds of an MTE tag (16-byte chunks) and improves overall performance. Benchmarked on Cortex-A72, Cortex-A53, Neoverse N1. Co-authored-by: Wilco Dijkstra <wilco.dijkstra@arm.com>
* AArch64: Merge Falkor memcpy and memmove implementationsKrzysztof Koch2020-06-083-245/+144
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Falkor's memcpy and memmove share some implementation details, therefore, the two routines are moved to a single source file for code reuse. The two routines now share code for small and medium copies (up to and including 128 bytes). Large copies in memcpy do not handle overlap correctly, consequently, the loops for moving/copying more than 128 bytes stay separate for memcpy and memmove. To increase code reuse a number of small modifications were made: 1. The old implementation of memcpy copied the first 16-bytes as soon as the size of data was determined to be greater than 32 bytes. For memcpy code to also work when copying small/medium overlapping data, the first load and store was moved to the large copy case. 2. Medium memcpy case no longer assumes that 16 bytes were already copied and uses 8 registers to copy up to 128 bytes. 3. Small case for memmove was enlarged to that of memcpy, which is less than or equal to 32 bytes. 4. Medium case for memmove was enlarged to that of memcpy, which is less than or equal to 128 bytes. Other changes include: 1. Improve alignment of existing loop bodies. 2. 'Delouse' memmove and memcpy input arguments. Make sure that upper 32-bits of input registers are zeroed if unused. 3. Do one more iteration in memmove loops and reduce the number of copies made from the start/end of the buffer, depending on the direction of the memmove loop. Benchmarking: Looking at the results from bench-memcpy-random.out, we can see that now memmove_falkor is about 5% faster than memcpy_falkor_old, while memmove_falkor_old was more than 15% slower. The memcpy implementation remained largely unmodified, so there is no significant performance change. The reason for such a significant memmove performance gain is the increase of the upper bound on the small copy case to 32 bytes and the increase of the upper bound on the medium copy case to 128 bytes. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* hurd: document that gcc&gdb look at the trampoline codeSamuel Thibault2020-06-081-1/+5
| | | | | * sysdeps/mach/hurd/i386/trampoline.c (rpc_wait_trampoline): Document which gcc and gdb files look at the code of the trampoline.
* pthread: Move back linking rules to nptl and htlSamuel Thibault2020-06-081-18/+0
| | | | | | | | | | | | | d6d74ec16 ('htl: Enable more tests') moved the linking rules from nptl/Makefile and htl/Makefile to the shared sysdeps/pthread/Makefile. But e.g. on powerpc some tests are added in sysdeps/powerpc/Makefile, which is included *after* sysdeps/pthread/Makefile, and thus the tests don't get affected by the rules and fail to link. For now let's just copy over the set of rules in both nptl/Makefile and htl/Makefile. * sysdeps/pthread/Makefile: Move libpthread linking rules to... * htl/Makefile: ... here and... * nptl/Makefile: ... there.
* htl: Enable more testsSamuel Thibault2020-06-0711-0/+739
| | | | | | | | | | * nptl/tst-_res1.c, tst-_res1mod1.c, tst-_res1mod2.c, tst-atfork2.c, tst-atfork2mod.c, tst-fini1.c, tst-fini1mod.c, tst-tls4.c, tst-tls4moda.c, tst-tls4modb.c: Move to... * sysdeps/pthread: ... here. Rename tst-tls4.c to tst-pt-tls4.c to avoid conflicting with elf/tst-tls4.c. * nptl/Makefile: Move corresponding references and rules to... * sysdeps/pthread/Makefile: ... here.
* htl: Fix registration of atfork handlers in modulesSamuel Thibault2020-06-072-2/+12
| | | | | | | | | | We really need modules to use their own pthread_atfork so that __dso_handle properly identifies them. * sysdeps/htl/pt-atfork.c (__pthread_atfork): Hide function. (pthread_atfork): Hide alias. * sysdeps/htl/old_pt-atfork.c (pthread_atfork): Rename macro to __pthread_atfork to fix building the compatibility alias.
* htl: Fix tls initialization for already-created threadsSamuel Thibault2020-06-072-0/+6
| | | | | | | | | * sysdeps/htl/pthreadP.h: Include <link.h> (__pthread_init_static_tls): New prototype. * htl/pt-alloc.c (__pthread_init_static_tls): New function. * sysdeps/mach/hurd/htl/pt-sysdep.c (_init_routine): Initialize tcb field of initial thread. Set GL(dl_init_static_tls) to &__pthread_init_static_tls.
* hurd: Make read and pread64 cancellableSamuel Thibault2020-06-0710-21/+106
| | | | | | | | | | | | | | | | | | | | | | | | | | | and add _nocancel variants. * sysdeps/mach/hurd/pread64.c (__libc_pread64): Call __pread64_nocancel surrounded by enabling async cancel, to replace implementation moved to... * sysdeps/mach/hurd/pread64_nocancel.c (__pread64_nocancel): ... here. * sysdeps/mach/hurd/read.c (__libc_read): Call __read_nocancel surrounded by enabling async cancel, to replace implementation moved to... * sysdeps/mach/hurd/read_nocancel.c (__read_nocancel): ... here. * sysdeps/mach/hurd/Makefile (sysdep_routines): Add read_nocancel and pread64_nocancel. * sysdeps/mach/hurd/not-cancel.h (__read_nocancel, __pread64_nocancel): Replace macros with prototypes with a hidden proto on libc. * sysdeps/mach/hurd/dl-sysdep.c: Include <not-cancel.h>. (__pread64_nocancel): New alias, check that it is not hidden. (__read_nocancel): New alias, check that it is not hidden. * sysdeps/mach/hurd/Versions (libc.GLIBC_PRIVATE): Add __read_nocancel and __pread64_nocancel. (ld.GLIBC_2.1): Add __pread64. (ld.GLIBC_PRIVATE): Add __read_nocancel and __pread64_nocancel. * sysdeps/mach/hurd/i386/ld.abilist (__pread64): Add symbol. * sysdeps/mach/hurd/i386/localplt.data (__read_nocancel, __pread64, __pread64_nocancel): Add references.
* hurd: Fix unwinding over interruptible RPCSamuel Thibault2020-06-071-0/+2
| | | | | * sysdeps/mach/hurd/i386/intr-msg.h (INTR_MSG_TRAP): Set CFA register to %ecx while %esp is altered.
* htl: Enable but XFAIL tst-flock2, tst-signal1, tst-signal2Samuel Thibault2020-06-075-1/+649
| | | | | | | | | | | They need setpshared support. * nptl/tst-flock2.c, tst-signal1.c, tst-signal2.c: Move to... * sysdeps/pthread: ... here. * nptl/Makefile: Move corresponding tests references to... * sysdeps/pthread/Makefile: ... here. * sysdeps/mach/hurd/i386/Makefile (test-xfail-tst-flock2, test-xfail-tst-signal1, test-xfail-tst-signal2): Add.
* hurd: XFAIL more tests that require setpshared supportSamuel Thibault2020-06-071-0/+3
| | | | | * sysdeps/mach/hurd/i386/Makefile (test-xfail-tst-pututxline-cache, test-xfail-tst-pututxline-lockfail, test-xfail-tst-mallocfork2): Add.
* hurd: Briefly document in xfails the topics of the bugzilla entriesSamuel Thibault2020-06-071-0/+6
| | | | * sysdeps/mach/hurd/i386/Makefile: Add comments.
* htl: Enable more testsSamuel Thibault2020-06-0798-241/+7350
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * htl/Makefile: Remove rules adding libpthread.so and libpthread.a to link lines. * nptl/Makefile: Move rules adding libpthread.so and libpthread.a to link lines to... * sysdeps/pthread/Makefile: ... here. * nptl/eintr.c, tst-align.c tst-align3.c tst-atfork1.c tst-backtrace1.c tst-bad-schedattr.c tst-cancel-self-canceltype.c tst-cancel-self-cleanup.c tst-cancel-self-testcancel.c tst-cancel1.c tst-cancel10.c tst-cancel12.c tst-cancel14.c tst-cancel15.c tst-cancel18.c tst-cancel19.c tst-cancel2.c tst-cancel22.c tst-cancel23.c tst-cancel26.c tst-cancel27.c tst-cancel28.c tst-cancel3.c tst-cancel8.c tst-cancelx1.c tst-cancelx10.c tst-cancelx12.c tst-cancelx14.c tst-cancelx15.c tst-cancelx18.c tst-cancelx2.c tst-cancelx3.c tst-cancelx8.c tst-cleanup0.c tst-cleanup0.expect tst-cleanup1.c tst-cleanup2.c tst-cleanup3.c tst-cleanupx0.c tst-cleanupx0.expect tst-cleanupx1.c tst-cleanupx2.c tst-cleanupx3.c tst-clock1.c tst-create-detached.c tst-detach1.c tst-eintr2.c tst-eintr3.c tst-eintr4.c tst-eintr5.c tst-exec1.c tst-exec2.c tst-exec3.c tst-exit1.c tst-exit2.c tst-exit3.c tst-flock1.c tst-fork1.c tst-fork2.c tst-fork3.c tst-fork4.c tst-getpid3.c tst-kill1.c tst-kill2.c tst-kill3.c tst-kill4.c tst-kill5.c tst-kill6.c tst-locale1.c tst-locale2.c tst-memstream.c tst-popen1.c tst-raise1.c tst-sem5.c tst-setuid3.c tst-signal4.c tst-signal5.c tst-signal6.c tst-signal8.c tst-stack1.c tst-stdio1.c tst-stdio2.c tst-sysconf.c tst-tls1.c tst-tls2.c tst-tsd1.c tst-tsd2.c tst-tsd5.c tst-tsd6.c tst-umask1.c tst-unload.c tst-unwind-thread.c tst-vfork1.c tst-vfork1x.c tst-vfork2.c tst-vfork2x.c: Move tests to... * sysdeps/pthread: ... here. Rename tst-popen1.c -> tst-pt-popen1.c tst-align.c -> tst-pt-align.c tst-align3.c -> tst-pt-align3.c tst-sysconf.c -> tst-pt-sysconf.c tst-tls1.c -> tst-pt-tls1.c tst-tls2.c -> tst-pt-tls2.c tst-vfork1.c -> tst-pt-vfork1.c tst-vfork2.c -> tst-pt-vfork2.c to avoid conflicting with libio/tst-popen1.c, elf/tst-align.c, posix/tst-sysconf.c, elf/tst-tls1.c, elf/tst-tls2.c, posix/tst-vfork1.c, posix/tst-vfork2.c. * nptl/Makefile: Move corresponding tests references and special rules to... * sysdeps/pthread/Makefile: ... here. * sysdeps/pthread/tst-stack1.c (do_test): Do not clamp stack size to PTHREAD_STACK_MIN if not defined. Tested on linux-x86_64 and hurd-i386
* htl: Add sem_clockwait supportSamuel Thibault2020-06-075-4/+77
| | | | | | | | | | | | | * sysdeps/htl/sem-timedwait.c (__sem_timedwait_internal): Add clock_id parameter instead of hardcoding CLOCK_REALTIME. (__sem_clockwait): New function. (sem_clockwait): New weak alias. * sysdeps/htl/sem-wait.c (__sem_timedwait_internal): Update declaration. (__sem_wait): Update call to __sem_timedwait_internal. * htl/Versions (GLIBC_2.32): Add sem_clockwait. * sysdeps/mach/hurd/i386/libpthread.abilist (sem_clockwait): Add symbol. * nptl/Makefile (tests): Move tst-sem5 to... * sysdeps/pthread/Makefile (tests): ... here.
* hurd: fix clearing SS_ONSTACK when longjmp-ing from sighandlerSamuel Thibault2020-06-065-32/+154
| | | | | | | | | | | * sysdeps/i386/htl/Makefile: New file. * sysdeps/i386/htl/tcb-offsets.sym: New file. * sysdeps/mach/hurd/i386/Makefile [setjmp] (gen-as-const-headers): Add signal-defines.sym. * sysdeps/mach/hurd/i386/____longjmp_chk.S: Include tcb-offsets.h. (____longjmp_chk): Harmonize with i386's __longjmp. Clear SS_ONSTACK when jumping off the alternate stack. * sysdeps/mach/hurd/i386/__longjmp.S: New file.
* hurd: Add pointer guard supportSamuel Thibault2020-06-061-0/+7
| | | | | * sysdeps/mach/hurd/i386/tls.h (THREAD_SET_POINTER_GUARD, THREAD_COPY_POINTER_GUARD): New macros.
* hurd: Add stack guard supportSamuel Thibault2020-06-062-1/+9
| | | | | | * sysdeps/mach/hurd/i386/tls.h (THREAD_SET_STACK_GUARD, THREAD_COPY_STACK_GUARD): New macros * sysdeps/mach/hurd/i386/ld.abilist (__stack_chk_guard): Remove symbol.
* dl-runtime: reloc_{offset,index} now functions arch overide'ableVineet Gupta2020-06-054-13/+66
| | | | | | | | | | | | | | | The existing macros are fragile and expect local variables with a certain name. Fix this by defining them as functions with default implementation in a new header dl-runtime.h which arches can override if need be. This came up during ARC port review, hence the need for argument pltgot in reloc_index() which is not needed by existing ports. This patch potentially only affects hppa/x86 ports, build tested for both those configs and a few more. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* powerpc64le: add optimized strlen for P9Paul E. Murphy2020-06-056-1/+226
| | | | | | | | | | | | | | | | This started as a trivial change to Anton's rawmemchr. I got carried away. This is a hybrid between P8's asympotically faster 64B checks with extremely efficient small string checks e.g <64B (and sometimes a little bit more depending on alignment). The second trick is to align to 64B by running a 48B checking loop 16B at a time until we naturally align to 64B (i.e checking 48/96/144 bytes/iteration based on the alignment after the first 5 comparisons). This allieviates the need to check page boundaries. Finally, explicly use the P7 strlen with the runtime loader when building P9. We need to be cautious about vector/vsx extensions here on P9 only builds.
* powerpc64le: use common fmaf128 implementationPaul E. Murphy2020-06-053-38/+10
| | | | | | | | | This defines the macro such that it should behave best on all supported powerpc targets. Likewise, this allows us to remove the ppc64le specific s_fmaf128.c. I have verified powerpc64le multiarch and powerpc64le power9 no-multiarch builds continue to generate optimize fmaf128.
* Update HP_TIMING_NOW for _ISOMAC in sysdeps/generic/hp-timing.hH.J. Lu2020-06-051-1/+10
| | | | | | | | | | | | | | | | | | | | | | | | | commit e9698175b0b60407db1e89bcf29437ab224bca0b Author: Lukasz Majewski <lukma@denx.de> Date: Mon Mar 16 08:31:41 2020 +0100 y2038: Replace __clock_gettime with __clock_gettime64 breaks benchtests with sysdeps/generic/hp-timing.h: In file included from ./bench-timing.h:23, from ./bench-skeleton.c:25, from /export/build/gnu/tools-build/glibc-gitlab/build-x86_64-linux/benchtests/bench-rint.c:45: ./bench-skeleton.c: In function ‘main’: ../sysdeps/generic/hp-timing.h:37:23: error: storage size of ‘tv’ isn’t known 37 | struct __timespec64 tv; \ | ^~ Define HP_TIMING_NOW with clock_gettime in sysdeps/generic/hp-timing.h if _ISOMAC is defined. Don't define __clock_gettime in bench-timing.h since it is no longer needed. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* powerpc: Fix powerpc64le due a7a3435c9aAdhemerval Zanella2020-06-041-0/+2
| | | | | | | | | | | | | | | The build uses an undefined macro evaluation for fmaf128 build. For now set USE_FMAL_BUILTIN and USE_FMAF128_BUILTIN to 0. Checked with a build for: powerpc64le-linux-gnu-power9-disable-multi-arch powerpc64le-linux-gnu-power9 powerpc64le-linux-gnu powerpc64-linux-gnu-power8 powerpc64-linux-gnu powerpc-linux-gnu-power4 powerpc-linux-gnu
* powerpc/fpu: use generic fma functionsVineet Gupta2020-06-033-54/+69
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Tested with build-many-glibcs for powerpc-linux-gnu This is a non functional change and powerpc libm before/after was byte invariant as compared below: | cd /SCRATCH/vgupta/gnu/install-glibc-A-baseline | for i in `find . -name libm-2.31.9000.so`; do | echo $i; diff $i /SCRATCH/vgupta/gnu/install-glibc-C-reduce-scope/$i ; | echo $?; | done | ./aarch64-linux-gnu/lib64/libm-2.31.9000.so | 0 | ./arm-linux-gnueabi/lib/libm-2.31.9000.so | 0 | ./x86_64-linux-gnu/lib64/libm-2.31.9000.so | 0 | ./arm-linux-gnueabihf/lib/libm-2.31.9000.so | 0 | ./riscv64-linux-gnu-rv64imac-lp64/lib64/lp64/libm-2.31.9000.so | 0 | ./riscv64-linux-gnu-rv64imafdc-lp64/lib64/lp64/libm-2.31.9000.so | 0 | ./powerpc-linux-gnu/lib/libm-2.31.9000.so | 0 | ./microblaze-linux-gnu/lib/libm-2.31.9000.so | 0 | ./nios2-linux-gnu/lib/libm-2.31.9000.so | 0 | ./hppa-linux-gnu/lib/libm-2.31.9000.so | 0 | ./s390x-linux-gnu/lib64/libm-2.31.9000.so | 0 Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* aarch/fpu: use generic builtins based math functionsVineet Gupta2020-06-0315-398/+71
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | introduce sysdep header math-use-builtins.h to replace aarch64 implementations with corresponding generic ones. - newly inroduced generic sqrt{,f}, fma{,f} - existing floor{,f}, nearbyint{,f}, rint{,f}, round{,f}, trunc{,f} - Note that generic copysign was already enabled (via generic math-use-builtins.h) now thru sysdep header Tested with build-many-glibcs for aarch64-linux-gnu This is a non functional change and aarch64 libm before/after was byte invariant as compared below: | cd /SCRATCH/vgupta/gnu/install-glibc-A-baseline | for i in `find . -name libm-2.31.9000.so`; do | echo $i; diff $i /SCRATCH/vgupta/gnu/install-glibc-C-reduce-scope/$i ; | echo $?; | done | ./aarch64-linux-gnu/lib64/libm-2.31.9000.so | 0 | ./arm-linux-gnueabi/lib/libm-2.31.9000.so | 0 | ./x86_64-linux-gnu/lib64/libm-2.31.9000.so | 0 | ./arm-linux-gnueabihf/lib/libm-2.31.9000.so | 0 | ./riscv64-linux-gnu-rv64imac-lp64/lib64/lp64/libm-2.31.9000.so | 0 | ./riscv64-linux-gnu-rv64imafdc-lp64/lib64/lp64/libm-2.31.9000.so | 0 | ./powerpc-linux-gnu/lib/libm-2.31.9000.so | 0 | ./microblaze-linux-gnu/lib/libm-2.31.9000.so | 0 | ./nios2-linux-gnu/lib/libm-2.31.9000.so | 0 | ./hppa-linux-gnu/lib/libm-2.31.9000.so | 0 | ./s390x-linux-gnu/lib64/libm-2.31.9000.so | 0 Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* ieee754: provide gcc builtins based generic fma functionsVineet Gupta2020-06-037-0/+34
| | | | Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* ieee754: provide gcc builtins based generic sqrt functionsVineet Gupta2020-06-034-6/+22
| | | | Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Linux: Use __pthread_attr_setsigmask_internal for timer helper threadFlorian Weimer2020-06-021-9/+10
| | | | | | | | | | timer_create needs to create threads with all signals blocked, including SIGTIMER (which happens to equal SIGCANCEL). Fixes commit b3cae39dcbfa2432b3f3aa28854d8ac57f0de1b8 ("nptl: Start new threads with all signals blocked [BZ #25098]"). Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* nptl: Add pthread_attr_setsigmask_np, pthread_attr_getsigmask_npFlorian Weimer2020-06-0232-0/+78
| | | | | Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
* nptl: Make pthread_attr_t dynamically extensibleFlorian Weimer2020-06-022-6/+19
| | | | | | | This introduces the function __pthread_attr_extension to allocate the extension space, which is freed by pthread_attr_destroy. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-08-17 01:31:46 +0000