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* tst: Modify tst-clock_adjtime to allow reuse of its codeLukasz Majewski2021-03-081-1/+5
| | | | | | | The tst-clock_adjtime can be adjusted to be reused for also testing adjtimex. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* tst: Add test for clock_adjtimeLukasz Majewski2021-03-082-1/+59
| | | | | | | | | | | This code privides test to check if time on target machine is properly adjusted. The time is altered only when cross-test-ssh.sh is executed with --allow-time-setting flag. As the delta added to CLOCK_REALTIME is only 1 sec the original time is not restored and further tests are executed with this bias. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Update hppa libm-test-ulpsJohn David Anglin2021-03-071-1/+3
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* x86: Set minimum x86-64 level marker [BZ #27318]H.J. Lu2021-03-063-11/+58
| | | | | | | | | | | | | | | | | | | Since the full ISA set used in an ELF binary is unknown to compiler, an x86-64 ISA level marker indicates the minimum, not maximum, ISA set required to run such an ELF binary. We never guarantee a library with an x86-64 ISA level v3 marker doesn't contain other ISAs beyond x86-64 ISA level v3, like AVX VNNI. We check the x86-64 ISA level marker for the minimum ISA set. Since -march=sandybridge enables only some ISAs in x86-64 ISA level v3, we should set the needed ISA marker to v2. Otherwise, libc is compiled with -march=sandybridge will fail to run on Sandy Bridge: $ ./elf/ld.so ./libc.so ./libc.so: (p) CPU ISA level is lower than required: needed: 7; got: 3 Set the minimum, instead of maximum, x86-64 ISA level marker should have no impact on the glibc-hwcaps directory assignment logic in ldconfig nor ld.so.
* linux: Fix __thrd_sleep64 hidden definitionAdhemerval Zanella2021-03-052-2/+2
| | | | The symbol is exported by libc.
* Update arm libm-test-ulpsAdhemerval Zanella2021-03-051-1/+3
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* Update sparc libm-test-ulpsAdhemerval Zanella2021-03-051-16/+18
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* [PATCH] pthread_once hangs when init routine throws an exception [BZ #18435]Jakub Jelinek2021-03-043-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This is another attempt at making pthread_once handle throwing exceptions from the init routine callback. As the new testcases show, just switching to the cleanup attribute based cleanup does fix the tst-once5 test, but breaks the new tst-oncey3 test. That is because when throwing exceptions, only the unwind info registered cleanups (i.e. C++ destructors or cleanup attribute), when cancelling threads and there has been unwind info from the cancellation point up to whatever needs cleanup both unwind info registered cleanups and THREAD_SETMEM (self, cleanup, ...) registered cleanups are invoked, but once we hit some frame with no unwind info, only the THREAD_SETMEM (self, cleanup, ...) registered cleanups are invoked. So, to stay fully backwards compatible (allow init routines without unwind info which encounter cancellation points) and handle exception throwing we actually need to register the pthread_once cleanups in both unwind info and in the THREAD_SETMEM (self, cleanup, ...) way. If an exception is thrown, only the former will happen and we in that case need to also unregister the THREAD_SETMEM (self, cleanup, ...) registered handler, because otherwise after catching the exception the user code could call deeper into the stack some cancellation point, get cancelled and then a stale cleanup handler would clobber stack and probably crash. If a thread calling init routine is cancelled and unwind info ends before the pthread_once frame, it will be cleaned up through self->cleanup as before. And if unwind info is present, unwind_stop first calls the self->cleanup registered handler for the frame, then it will call the unwind info registered handler but that will already see __do_it == 0 and do nothing.
* powerpc: Regenerate ulpsFlorian Weimer2021-03-031-10/+10
| | | | This time on a POWER8 machine.
* s390x: Regenerate ulpsArjun Shankar2021-03-031-15/+17
| | | | For new test cases in commit 5a051454a9b5.
* tst: Fix tst-timerfd testLukasz Majewski2021-03-021-11/+4
| | | | | | | | | | | | | | | | | | | There were following problems discovered for tst-timerfd test: 1. Do not set the struct itimerspec's it_interval tv_sec to 2 seconds. After this change the timerfd will trigger only once (the it_value is only set in this case). 2. The 'val1' variable (including the call to timerfd_gettime) is not needed anymore, as it is just enough to read the struct itimerspec after sleep. As a consequence the 'val2' has been renamed to 'val'. 3. After calling timerfd_gettime, the value of struct itimerspec time, when timer is running, is the remaining time. In the case of this test it would be less than 1 second. As a result the TEST_COMPARE macro logic had to be adjusted. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* i386: Regenerate ulpsFlorian Weimer2021-03-022-46/+46
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* x86: Add CPU-specific diagnostics to ld.so --list-diagnosticsFlorian Weimer2021-03-022-0/+120
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* x86: Automate generation of PREFERRED_FEATURE_INDEX_1 bitfieldFlorian Weimer2021-03-022-34/+51
| | | | | Use a .def file to define the bitfield layout, so that it is possible to iterate over field members using the preprocessor.
* ld.so: Implement the --list-diagnostics optionFlorian Weimer2021-03-021-0/+77
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* powerpc: Update libm-test-ulpsMatheus Castanho2021-03-021-13/+15
| | | | | | Generated with 'make regen-ulps' Tested on powerpc, powerpc64, and powerpc64le
* tst: Add test for utimesLukasz Majewski2021-03-022-1/+89
| | | | | | | | | | | This patch provides test for utimes. It uses wrapper to read access and modification times to compare them with ones written by utimes. Moreover, access and modification times beyond the Y2038 threshold date (i.e. 32 bit time_t overflow) are also checked. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* tst: Add test for utimeLukasz Majewski2021-03-022-1/+88
| | | | | | | | | | This patch provides test for utime. It uses wrapper to read access and modification times to compare them with ones written by utime. Moreover, access and modification times beyond the Y2038 threshold date (i.e. 32 bit time_t overflow) are also checked. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* tst: Add test for futimensLukasz Majewski2021-03-022-1/+85
| | | | | | | | | | | This patch provides test for futimens. It uses wrapper, which reads access and modification time to compare them with ones written by futimens. Moreover, access and modification times beyond the Y2038 threshold date (i.e. 32 bit time_t overflow) are also checked. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* nptl: __libc_cleanup_push/__libc_cleanup_pop require -fexceptionsFlorian Weimer2021-03-021-3/+6
| | | | | | Do not define these macros if they do nothing in a particular compilation, otherwise they can easily be used accidentally, while not actually achieving anything.
* nptl: Use <unwind-link.h> for accessing the libgcc_s unwinderFlorian Weimer2021-03-014-142/+44
| | | | Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* Implement _Unwind_Resume in libc on top of <unwind-link.h>Florian Weimer2021-03-015-61/+97
| | | | | | | | Temporarily move the arm _Unwind_Resume implementation to the file used by libpthread. It will be ported to <unwind-link.h> along with the rest of nptl. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* Move sysdeps/gnu/unwind-resume.c to sysdeps/generic/unwind-resume.cFlorian Weimer2021-03-011-0/+0
| | | | | | | This change allows architecture-specific sysdeps directories to override it. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* __frame_state_for: Use <unwind-link.h> for unwinder accessFlorian Weimer2021-03-011-13/+8
| | | | Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* sparc: Implement backtrace on top <unwind-link.h>Florian Weimer2021-03-011-51/+15
| | | | Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* m68k: Implement backtrace on top of <unwind-link.h>Florian Weimer2021-03-011-64/+18
| | | | Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* i386: Implement backtrace on top of <unwind-link.h>Florian Weimer2021-03-011-64/+18
| | | | Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* arm: Implement backtrace on top of <unwind-link.h>Florian Weimer2021-03-011-57/+20
| | | | Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* Implement <unwind-link.h> for dynamically loading the libgcc_s unwinderFlorian Weimer2021-03-0115-16/+447
| | | | | | | | | | This will be used to consolidate the libgcc_s access for backtrace and pthread_cancel. Unlike the existing backtrace implementations, it provides some hardening based on pointer mangling. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* aarch64: update ulps.Szabolcs Nagy2021-03-011-15/+17
| | | | | For new test cases in commit 5a051454a9b50c27984bbc499ee1297de48e2dc8
* Add inputs that generate larger error boundsPaul Zimmermann2021-02-271-24/+26
| | | | (Using values from https://members.loria.fr/PZimmermann/papers/accuracy.pdf)
* Reduce the statically linked startup code [BZ #23323]Florian Weimer2021-02-2558-182/+115
| | | | | | | | | | | | | | | | | | | It turns out the startup code in csu/elf-init.c has a perfect pair of ROP gadgets (see Marco-Gisbert and Ripoll-Ripoll, "return-to-csu: A New Method to Bypass 64-bit Linux ASLR"). These functions are not needed in dynamically-linked binaries because DT_INIT/DT_INIT_ARRAY are already processed by the dynamic linker. However, the dynamic linker skipped the main program for some reason. For maximum backwards compatibility, this is not changed, and instead, the main map is consulted from __libc_start_main if the init function argument is a NULL pointer. For statically linked binaries, the old approach based on linker symbols is still used because there is nothing else available. A new symbol version __libc_start_main@@GLIBC_2.34 is introduced because new binaries running on an old libc would not run their ELF constructors, leading to difficult-to-debug issues.
* nptl: Move elision implementations into libcFlorian Weimer2021-02-2337-667/+138
| | | | | | | | | | | | | | | | | | The elision interfaces are closely aligned between the targets that implement them, so declare them in the generic <lowlevellock.h> file. Empty .c stubs are provided, so that fewer makefile updates under sysdeps are needed. Also simplify initialization via __libc_early_init. The symbols __lll_clocklock_elision, __lll_lock_elision, __lll_trylock_elision, __lll_unlock_elision, __pthread_force_elision move into libc. For the time being, non-hidden references are used from libpthread to access them, but once that part of libpthread is moved into libc, hidden symbols will be used again. (Hidden references seem desirable to reduce the likelihood of transactions aborts.)
* x86: Use x86/nptl/pthreaddef.hH.J. Lu2021-02-222-48/+7
| | | | | | | 1. Move sysdeps/i386/nptl/pthreaddef.h to sysdeps/x86/nptl/pthreaddef.h. 2. Remove sysdeps/x86_64/nptl/pthreaddef.h. Reviewed-by: DJ Delorie <dj@redhat.com>
* nptl: Move futex-internal into libcFlorian Weimer2021-02-221-2/+2
| | | | | | | | This moves __futex_abstimed_wait64 and __futex_abstimed_wait_cancelable64 and exports these functions as GLIBC_PRIVATE. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* nptl: Move lowlevellock into libc [BZ #15648]Florian Weimer2021-02-222-10/+4
| | | | | | And export __lll_lock_wait and __lll_lock_wait_private as GLIBC_PRIVATE. This should eliminate the need for the previous riscv kludge.
* nptl: Move futex-internal.c into main nptl directoryFlorian Weimer2021-02-222-128/+1
| | | | Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* x86: Remove unused variables for raw cache sizes from cacheinfo.hFlorian Weimer2021-02-221-12/+0
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* <bits/platform/x86.h>: Correct x86_cpu_TBMH.J. Lu2021-02-221-1/+1
| | | | x86_cpu_TBM should be x86_cpu_index_80000001_ecx + 21.
* x86_64/clone.S: Upate commentsH.J. Lu2021-02-221-6/+8
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* i386/clone.S: Remove redundant EBX loadH.J. Lu2021-02-221-6/+0
| | | | | | | | | | | | | There is no neeed for call L(here) L(here): popl %ebx addl $_GLOBAL_OFFSET_TABLE_+[.-L(here)], %ebx before movl %eax, %ebx
* aarch64: Remove the unused __read_tp symbolSzabolcs Nagy2021-02-223-51/+0
| | | | | | | | This was likely a mistake in the original aarch64 port copied over from arm: on aarch64 tpidr_el0 register is always available. The __read_tp symbol is visible with static linking, but it's not part of the public ABI so it should be safe to remove.
* Update syscall lists for Linux 5.11.Joseph Myers2021-02-1926-2/+28
| | | | | | | | Linux 5.11 has one new syscall, epoll_pwait2. Update syscall-names.list and regenerate the arch-syscall.h headers with build-many-glibcs.py update-syscalls. Tested with build-many-glibcs.py.
* Correct hppa EFD_NONBLOCK, IN_NONBLOCK, SFD_NONBLOCK and TFD_NONBLOCK defines.John David Anglin2021-02-194-4/+4
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* S390: Add new hwcap values.Stefan Liebler2021-02-163-3/+8
| | | | The new hwcap values indicate support for arch14 architecture.
* aarch64: Fix sys/ptrace.h if linux headers are includedSzabolcs Nagy2021-02-151-0/+34
| | | | | | If the linux asm/ptrace.h is included before sys/ptrace.h that breaks the newly added declarations there, so undef the names that may be defined as macros in the linux header.
* x86: Remove the extra space between "# endif"H.J. Lu2021-02-121-1/+1
| | | | | | | | | | Remove the extra space between "# endif" left over from commit f380868f6dcfdeae8d449d556298d9c41012ed8d Author: H.J. Lu <hjl.tools@gmail.com> Date: Thu Dec 24 15:43:34 2020 -0800 Remove _ISOMAC check from <cpu-features.h>
* hurd: Fix fstatfs build failureAdhemerval Zanella2021-02-111-1/+1
| | | | | | | It was added by 1bfbaf7130 where it added a libc_hidden_proto for __fstatfs but it didn't update the Hurd version as well. Checked with a build for i686-gnu.
* linux: Remove stat-check.cAdhemerval Zanella2021-02-113-30/+13
| | | | | | | The check is moved to LFS fstatat implementation (since it is the code that actually implements the syscall). Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* linux: Remove overflow.hAdhemerval Zanella2021-02-111-69/+0
| | | | | | The header is not used anywhere. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-09-16 19:50:36 +0000