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* 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
* manual: Add pthread_attr_setsigmask_np, pthread_attr_getsigmask_npFlorian Weimer2020-06-151-0/+72
| | | | And the PTHREAD_ATTR_NO_SIGMASK_NP constant.
* ld.so: Check for new cache format first and enhance corruption checkFlorian Weimer2020-06-151-12/+15
| | | | | | | | | Now that ldconfig defaults to the new format (only), check for it first. Also apply the corruption check added in commit 2954daf00bb4d ("Add more checks for valid ld.so.cache file (bug 18093)") to the new-format-only case. Suggested-by: Josh Triplett <josh@joshtriplett.org>
* 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 Thibault2020-06-146-5/+6
| | | | | | | | * 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: Move cleanup stack to variable shared between libc and pthreadSamuel Thibault2020-06-146-6/+9
| | | | | | | | | | | | | | | | | | | | If libpthread gets loaded dynamically, the stack needs to already contain the cleanup handlers of the main thread. * htl/libc_pthread_init.c (__pthread_cleanup_stack): New per-thread variable. * htl/Versions (libc): Add __pthread_cleanup_stack as private symbol. * htl/pt-internal.h (struct __pthread): Remove cancelation_handlers field. (__pthread_cleanup_stack): Add variable declaration. * htl/pt-alloc.c (initialize_pthread): Remove initialization of cancelation_handlers field. * htl/pt-cleanup.c (__pthread_get_cleanup_stack): Return the address of __pthread_cleanup_stack instead of that of the cancelation_handlers field. * htl/forward.c: Include <pt-internal.h>. (dummy_list): Remove variable. (__pthread_get_cleanup_stack): Return the address of __pthread_cleanup_stack instead of that of dummy_list.
* htl: initialize first and prevent from unloadingSamuel Thibault2020-06-141-0/+1
| | | | | | | libc does not have codepaths for reverting the load of a libpthread. * htl/Makefile (LDFLAGS-pthread.so): Pass -z nodelete -z initfirst to linker.
* 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>
* Use Linux 5.7 in build-many-glibcs.py.Joseph Myers2020-06-101-1/+1
| | | | | | | This patch makes build-many-glibcs.py use Linux 5.7. Tested with build-many-glibcs.py (host-libraries, compilers and glibcs builds).
* htl: Enable more cancel testsSamuel Thibault2020-06-109-16/+18
| | | | | | | * 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.
* htl: Fix linking static tests by factorizing the symbols listSamuel Thibault2020-06-104-45/+30
| | | | | | | | | | | libpthread_syms.a will contain the symbols that libc tries to get from libpthread, to be used by the system, but also by tests. * htl/libpthread.a, htl/libpthread_pic.a: Link libpthread_syms.a and Move EXTERN references to... * htl/libpthread_syms.a: ... new file. Add missing __pthread_enable_asynccancel reference. * htl/Makefile: Install libpthread_syms.a and link it into static tests.
* Add "%d" support to _dl_debug_vdprintfH.J. Lu2020-06-091-2/+29
| | | | "%d" will be used to print out signed value.
* 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 Thibault2020-06-083-18/+36
| | | | | | | | | | | | | 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 Thibault2020-06-0712-37/+45
| | | | | | | | | | * 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 Thibault2020-06-073-0/+35
| | | | | | | | | * 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 Thibault2020-06-076-3/+6
| | | | | | | | | | | 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 Thibault2020-06-07100-111/+141
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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 Thibault2020-06-077-6/+18
| | | | | | | | | | | | | * 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.
* htl: fix register-atfork orderingSamuel Thibault2020-06-071-7/+7
| | | | | * htl/register-atfork.c (__register_atfork): Add new hooks at the end of the list instead of the beginning.
* hurd: Fix hang in _hurd_raise_signal from pthread_killSamuel Thibault2020-06-071-1/+5
| | | | | | | When ss is not NULL, it is assumed to be locked. * hurd/hurd-raise.c (_hurd_raise_signal): Unlock before returning an error if ss is not NULL.
* hurd: Reject raising invalid signalsSamuel Thibault2020-06-071-0/+3
| | | | | * hurd/hurd-raise.c (_hurd_raise_signal): Return EINVAL if signo <= 0 or signo >= NSI.
* 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 Gupta2020-06-056-24/+113
| | | | | | | | | | | | | | | 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.
* benchtests: Restore the clock_gettime optionH.J. Lu2020-06-053-2/+17
| | | | | | | | | | | | | | commit 7621e38bf3c58b2d0359545f1f2898017fd89d05 Author: Wilco Dijkstra <Wilco.Dijkstra@arm.com> Date: Tue Jan 29 17:43:45 2019 +0000 Add generic hp-timing support removed the clock_gettime option. Restore the clock_gettime option for some x86 CPUs on which value from RDTSC may not be incremented at a fixed rate. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* Update HP_TIMING_NOW for _ISOMAC in sysdeps/generic/hp-timing.hH.J. Lu2020-06-052-2/+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>
* Replace val with __val in TUNABLE_SET_VAL_IF_VALID_RANGEH.J. Lu2020-06-041-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | There are: #define TUNABLE_SET_VAL_IF_VALID_RANGE(__cur, __val, __type) \ ({ \ __type min = (__cur)->type.min; \ __type max = (__cur)->type.max; \ \ if ((__type) (__val) >= min && (__type) (val) <= max) \ ^^^ Should be __val { \ (__cur)->val.numval = val; \ ^^^ Should be __val (__cur)->initialized = true; \ } \ }) Luckily since all TUNABLE_SET_VAL_IF_VALID_RANGE usages are TUNABLE_SET_VAL_IF_VALID_RANGE (cur, val, int64_t); this didn't cause any issues. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* support: Fix detecting hole support on >2KB-block filesystemsSamuel Thibault2020-06-041-2/+4
| | | | | | | | | | | | | When detecting hole support, we write at 16MiB, and filesystems will typically need two levels of data to record that. On filesystems with 8KB block, the two indirection blocks will require a total of 16KB overhead, thus 32 512-byte sectors. Spotted on GNU/Hurd with a 4KB blocks filesystem, but also happens on Linux with 4KB or 8KB blocks filesystems. * support/support_descriptor_supports_holes.c (support_descriptor_supports_holes): Set block_headroom to 32.
* 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
* manual/jobs.texi: remove unused var from example codeAurélien Aptel2020-06-031-1/+0
| | | | | | The do_job_notification() function defines a variable without using it. Remove it. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-07-31 20:25:19 +0000