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* nptl: Move pthread_attr_getscope implementation into libcFlorian Weimer2020-02-202-2/+0
| | | | | | | | This is part of the libpthread removal project: <https://sourceware.org/ml/libc-alpha/2019-10/msg00080.html> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* nptl: Move pthread_attr_setschedpolicy implementation into libcFlorian Weimer2020-02-202-2/+0
| | | | | | | | This is part of the libpthread removal project: <https://sourceware.org/ml/libc-alpha/2019-10/msg00080.html> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* nptl: Move pthread_attr_getschedpolicy implementation into libcFlorian Weimer2020-02-202-2/+0
| | | | | | | | This is part of the libpthread removal project: <https://sourceware.org/ml/libc-alpha/2019-10/msg00080.html> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* mips: Fix bracktrace result for signal framesAdhemerval Zanella2020-02-181-0/+67
| | | | | | | | | | | | | | | | MIPS fallback code handle a frame where its FDE can not be obtained (for instance a signal frame) by reading the kernel allocated signal frame and adding '2' to the value of 'sc_pc' [1]. The added value is used to recognize an end of an EH region on mips16 [2]. The fix adjust the obtained signal frame value and remove the libgcc added value by checking if the previous frame is a signal frame one. Checked with backtrace and tst-sigcontext-get_pc tests on mips-linux-gnu and mips64-linux-gnu. [1] libgcc/config/mips/linux-unwind.h from gcc code. [2] gcc/config/mips/mips.h from gcc code. */
* ld.so: Do not export free/calloc/malloc/realloc functions [BZ #25486]Florian Weimer2020-02-153-12/+0
| | | | | | | | | | | | | | | | | | | Exporting functions and relying on symbol interposition from libc.so makes the choice of implementation dependent on DT_NEEDED order, which is not what some compiler drivers expect. This commit replaces one magic mechanism (symbol interposition) with another one (preprocessor-/compiler-based redirection). This makes the hand-over from the minimal malloc to the full malloc more explicit. Removing the ABI symbols is backwards-compatible because libc.so is always in scope, and the dynamic loader will find the malloc-related symbols there since commit f0b2132b35248c1f4a80f62a2c38cddcc802aa8c ("ld.so: Support moving versioned symbols between sonames [BZ #24741]"). Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* linux: Remove INTERNAL_SYSCALL_DECLAdhemerval Zanella2020-02-144-26/+23
| | | | | | | | | | | With all Linux ABIs using the expected Linux kABI to indicate syscalls errors, the INTERNAL_SYSCALL_DECL is an empty declaration on all ports. This patch removes the 'err' argument on INTERNAL_SYSCALL* macro and remove the INTERNAL_SYSCALL_DECL usage. Checked with a build against all affected ABIs.
* linux: Consolidate INLINE_SYSCALLAdhemerval Zanella2020-02-142-56/+2
| | | | | | | | | | | With all Linux ABIs using the expected Linux kABI to indicate syscalls errors, there is no need to replicate the INLINE_SYSCALL. The generic Linux sysdep.h includes errno.h even for !__ASSEMBLER__, which is ok now and it allows cleanup some archaic code that assume otherwise. Checked with a build against all affected ABIs.
* mips: Use Linux kABI for syscall returnAdhemerval Zanella2020-02-143-53/+23
| | | | | | | | | | | | | It changes the mips INTERNAL_SYSCALL* and internal_syscall* macros to return a negative value instead of the 'a3' register value on then 'err' macro argument. The macro INTERNAL_SYSCALL_DECL is no longer required, and the INTERNAL_SYSCALL_ERROR_P macro follows the other Linux kABIs. The redefinition of INTERNAL_VSYSCALL_CALL is also no longer required. Checked on mips64-linux-gnu, mips64n32-linux-gnu, and mips-linux-gnu.
* mips64: Consolidate Linux sysdep.hAdhemerval Zanella2020-02-142-390/+68
| | | | | | | | | | | | | The mips64 Linux syscall macros only differs argument type and the requirement of sign-extending values on n32. The headers are consolidate by parameterizing the arguments with a new type, __syscall_arg_t, and by defining the ARGIFY for n64. Also, the generic unix mips64 sysdep is essentially the same, only the load instruction need to be adjusted depending of the ABI. Checked on mips64-linux-gnu and mips64n32-linux-gnu.
* Use gcc -finput-charset=ascii for check-installed-headers.Stefan Liebler2020-02-131-1/+1
| | | | | | | | | | | | | | | | | | | | A non-ascii character in the installed headers leads now to: error: failure to convert ascii to UTF-8 Such a finding in s390 specific fenv.h leads to fails in GCC testsuite. See glibc commit 08aea89ef67c5780ae734073494df0a451bce20f. Adding this gcc option also to our tests was proposed by Florian Weimer. This change also found a hit in resource.h where now "microseconds" is used. I've adjusted all the resource.h files. I've used the following command to check for further hits in headers. LC_ALL=C find -name "*.h" -exec grep -PHn "[\x80-\xFF]" {} \; Tested on s390x and x86_64. Reviewed-by: Zack Weinberg <zackw@panix.com>
* mips: Fix argument passing for inlined syscalls on Linux [BZ #25523]WANG Xuerui2020-02-123-52/+104
| | | | | | | | | | | | | | According to [gcc documentation][1], temporary variables must be used for the desired content to not be call-clobbered. Fix the Linux inline syscall templates by adding temporary variables, much like what x86 did before (commit 381a0c26d73e0f074c962e0ab53b99a6c327066d). Tested with gcc 9.2.0, both cross-compiled and natively on Loongson 3A4000. [1]: https://gcc.gnu.org/onlinedocs/gcc/Local-Register-Variables.html
* mips: Use 'long int' and 'long long int' in linux syscall codeWANG Xuerui2020-02-1214-220/+230
| | | | Style fixes only, no functional change.
* linux: Enable vDSO clock_gettime64 for mipsAdhemerval Zanella2020-01-031-0/+5
| | | | | | It was added on Linux 5.4 (commit 1f66c45db3302). Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
* elf: Move vDSO setup to rtld (BZ#24967)Adhemerval Zanella2020-01-031-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | This patch moves the vDSO setup from libc to loader code, just after the vDSO link_map setup. For static case the initialization is moved to _dl_non_dynamic_init instead. Instead of using the mangled pointer, the vDSO data is set as attribute_relro (on _rtld_global_ro for shared or _dl_vdso_* for static). It is read-only even with partial relro. It fixes BZ#24967 now that the vDSO pointer is setup earlier than malloc interposition is called. Also, vDSO calls should not be a problem for static dlopen as indicated by BZ#20802. The vDSO pointer would be zero-initialized and the syscall will be issued instead. Checked on x86_64-linux-gnu, i686-linux-gnu, aarch64-linux-gnu, arm-linux-gnueabihf, powerpc64le-linux-gnu, powerpc64-linux-gnu, powerpc-linux-gnu, s390x-linux-gnu, sparc64-linux-gnu, and sparcv9-linux-gnu. I also run some tests on mips. Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
* linux: Update mips vDSO symbolsAdhemerval Zanella2020-01-031-0/+1
| | | | | | | | | The clock_getres is a new implementation added on Linux 5.4 (abed3d826f2f). Checked with a build against mips-linux-gnu and mips64-linux-gnu. Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
* Linux: Use system call tables during buildFlorian Weimer2020-01-021-1/+0
| | | | | | | | | | | | | | | | | | | | | | | Use <arch-syscall.h> instead of <asm/unistd.h> to obtain the system call numbers. A few direct includes of <asm/unistd.h> need to be removed (if the system call numbers are already provided indirectly by <sysdep.h>) or replaced with <sys/syscall.h>. Current Linux headers for alpha define the required system call names, so most of the _NR_* hacks are no longer needed. For the 32-bit arm architecture, eliminate the INTERNAL_SYSCALL_ARM macro, now that we have regular system call names for cacheflush and set_tls. There are more such cleanup opportunities for other architectures, but these cleanups are required to avoid macro redefinition errors during the build. For ia64, it is desirable to use <asm/break.h> directly to obtain the break number for system calls (which is not a system call number itself). This requires replacing __BREAK_SYSCALL with __IA64_BREAK_SYSCALL because the former is defined as an alias in <asm/unistd.h>, but not in <asm/break.h>. Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
* Linux: Add tables with system call numbersFlorian Weimer2020-01-023-0/+1105
| | | | | | | | | | | | | | | | | | | | | | | | | | | The new tables are currently only used for consistency checks with the installed kernel headers and the architecture-independent system call names table. They are based on Linux 5.4. The goal is to use these architecture-specific tables to ensure that system call wrappers are available irrespective of the version of the installed kernel headers. The tables are formatted in the form of C header files so that they can be used directly in an #include directive, without external preprocessing. (External preprocessing of a plain table file would introduce cross-subdirectory dependency issues.) However, the intent is that they can still be treated as tables and can be processed by simple tools. The irregular system call names on 32-bit arm add a complication. The <fixup-asm-unistd.h> header is introduced to work around that, and the system calls are listed under regular names in the <arch-syscall.h> file. A make target, update-syscalls-list, is added to patch the glibc sources with data from the current kernel headers. Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
* Update copyright dates with scripts/update-copyrights.Joseph Myers2020-01-0184-84/+84
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* nptl: Move waitpid implementation to libcAdhemerval Zanella2019-12-192-2/+0
| | | | Checked on x86_64-linux-gnu and powerpc64le-linux-gnu.
* nptl: Move wait implementation to libcAdhemerval Zanella2019-12-192-4/+0
| | | | Checked on x86_64-linux-gnu and powerpc64le-linux-gnu.
* mips: Do not include hi and lo in __SYSCALL_CLOBBERS for R6Dragan Mladjenovic2019-12-163-6/+21
| | | | | | | | | | | | | | | | | | | GCC 10 (PR 91233) won't silently allow registers that are not architecturally available to be present in the clobber list anymore, resulting in build failure for mips*r6 targets in form of: ... .../sysdep.h:146:2: error: the register ‘lo’ cannot be clobbered in ‘asm’ for the current target 146 | __asm__ volatile ( \ | ^~~~~~~ This is because base R6 ISA doesn't define hi and lo registers w/o DSP extension. This patch provides the alternative definitions of __SYSCALL_CLOBBERS for r6 targets that won't include those registers. * sysdeps/unix/sysv/linux/mips/mips32/sysdep.h (__SYSCALL_CLOBBERS): Exclude hi and lo from the clobber list for __mips_isa_rev >= 6. * sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h (__SYSCALL_CLOBBERS): Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n64/sysdep.h (__SYSCALL_CLOBBERS): Likewise.
* nptl: Add more missing placeholder abi symbol from nanosleep moveAdhemerval Zanella2019-12-092-2/+2
| | | | | | | | | | | | | | | | | | | | This patch adds the missing __libpthread_version_placeholder for GLIBC_2.2.6 version from the nanosleep implementation move from libpthread to libc (79a547b162). It also fixes the wrong compat symbol definitions added by changing back the version used on vfork check and remove the __libpthread_version_placeholder added on some ABI (4f4bb489e0dd). The __libpthread_version_placeholder is also refactored to make it simpler to add new compat_symbols by adding a new macro compat_symbol_unique which uses the compiler extension __COUNTER__ to generate unique strong alias to be used with compat_symbol. Checked with a updated-abi on the all affected abis of the nanosleep move. Change-Id: I347a4dbdc931bb42b359456932dd1e17aa4d4078
* nptl: Add missing placeholder abi symbol from nanosleep moveAdhemerval Zanella2019-11-072-0/+2
| | | | | | Adds the __libpthread_version_placeholder symbol with the same version of nanosleep/__nanosleep that was removed by 79a547b162657b3f and that is not provided by other symbols.
* nptl: Move nanosleep implementation to libcAdhemerval Zanella2019-11-062-4/+0
| | | | | | | | | Checked on x86_64-linux-gnu and powerpc64le-linux-gnu. I also checked the libpthread.so .gnu.version_d entries for every ABI affected and all of them contains the required versions (including for architectures which exports __nanosleep with a different version). Reviewed-by: Florian Weimer <fweimer@redhat.com>
* nptl: Add pthread_clockjoin_npMike Crowe2019-11-012-0/+2
| | | | | | | | | | | Introduce pthread_clockjoin_np as a version of pthread_timedjoin_np that accepts a clockid_t parameter to indicate which clock the timeout should be measured against. This mirrors the recently-added POSIX-proposed "clock" wait functions. Checked on x86_64-linux-gnu. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Update sysvipc kernel-features.h files for Linux 5.1Adhemerval Zanella2019-10-181-4/+8
| | | | | | | | | | | | | | | | | | | | | | | | Linux 5.1 adds missing SySV IPC syscalls to the syscall table for remanining one that still uses the ipc syscall on glibc (m68k, mips-o32, powerpc, s390, sh, and sparc32). However the newly added direct ipc syscall are different than the old ones: 1. They do not expect IPC_64, meaning __IPC_64 should be set to zero when new syscalls are used. And new syscalls can not be used for compat functions like __old_semctl (to emulated old sysvipc it requires to use the old __NR_ipc syscall without __IPC_64). Thus IPC_64 is redefined for newer kernels on affected ABIs. 2. semtimedop and semop does not exist on 32-bit ABIs (only semtimedop_time64 is supplied). The provided syscall wrappers only uses the wire-up syscall if __NR_semtimedop and __NR_semop are also defined. Checked on x86_64-linux-gnu and i686-linux-gnu on both a 4.15 kernel configure with default options and sysvipc tests on a 5.3.0 kernel with --enable-kernel=5.1. Tested-by: Paul A. Clarke <pc@us.ibm.com>
* ipc: Refactor sysvipc internal definitionsAdhemerval Zanella2019-10-172-14/+5
| | | | | | | | | | | | | | | | | | | | | | | This patch refactor the internal sysvipc in two main points: 1. Add a new __ASSUME_SYSVIPC_DEFAULT_IPC_64 to infer the __IPC_64 value to be used along either the multiplexed __NR_ipc or wired-up syscall. The defaut value assumed for __IPC_64 is also changed from 0x100 to 0x0, aligning with Linux generic UAPI. The idea is to simplify the Linux 5.1 wire-up for sysvipc syscalls for some 32-bit ABIs (which expectes __IPC_64 being 0x0) and simplify new ports (which will no longer need to add ipc_priv.h). 2. It also removes some duplicated internal definition used on compat sysvipc symbols defined at ipc_priv.h (more specifically the __old_ipc_perm, SEMCTL_ARG_ADDRESS, MSGRCV_ARGS, and SEMTIMEDOP_IPC_ARGS). The idea is also to make it simpler to enable the new wire-up sysvipc syscall provided by Linux v5.1. There is no semantic change expected on any port. Checked with a build against all affected ABIs. Reviewed-by: Florian Weimer <fweimer@redhat.com>
* sysvipc: Set ipc_perm mode as mode_t (BZ#18231)Adhemerval Zanella2019-10-101-54/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch sets the mode field in ipc_perm as mode_t for all architectures, as POSIX specification [1]. The changes required are as follow: 1. It moves the ipc_perm definition out of ipc.h to its own header ipc_perm.h. It also allows consolidate the IPC_* definition on only one header. 2. The generic implementation follow the kernel ipc64_perm size so the syscall can be made directly without temporary buffer copy. However, since glibc defines the MODE field as mode_t, it omits the __PAD1 field (since glibc does not export mode_t as 16-bit for any architecture). It is a two-fold improvement: 2.1. New implementation which follow Linux UAPI will not need to provide an arch-specific ipc-perm.h header neither wrongly use the wrong 16-bit definition from previous default ipc.h (as csky did). 2.1. It allows consolidate ipc_perm definition for architectures that already provide mode_t as 32-bit. 3. All kernel ABIs for the supported architectures already provides the expected padding for mode type extension to 32-bit. However, some architectures the padding has the wrong placement, so it requires the ipc control routines (msgctl, semctl, and shmctl) to adjust the mode field accordingly. Currently they are armeb, microblaze, m68k, s390, and sheb. A new assume is added, __ASSUME_SYSVIPC_BROKEN_MODE_T, which the required ABIs define. 4. For the ABIs that define __ASSUME_SYSVIPC_BROKEN_MODE_T, it also require compat symbols that do not adjust the mode field. Checked on arm-linux-gnueabihf, aarch64-linux-gnu, powerpc64le-linux-gnu, and x86_64-linux-gnu. I also checked the sysvipc tests on hppa-linux-gnu, sh4-linux-gnu, s390x-linux-gnu, and s390-linux-gnu. I also did a sanity test against armeb qemu usermode for the sysvipc tests. [BZ #18231] * sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add bits/ipc-perm.h. * sysdeps/unix/sysv/linux/aarch64/bits/ipc.h: Remove file. * sysdeps/unix/sysv/linux/alpha/bits/ipc.h: Likewise. * sysdeps/unix/sysv/linux/hppa/bits/ipc.h: Likewise. * sysdeps/unix/sysv/linux/ia64/bits/ipc.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/ipc.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/ipc.h: Likewise. * sysdeps/unix/sysv/linux/s390/bits/ipc.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/ipc.h: Likewise. * sysdeps/unix/sysv/linux/arm/kernel-features.h [__BYTE_ORDER == __BIG_ENDIAN] (__ASSUME_SYSVIPC_BROKEN_MODE_T): Define. * sysdeps/sysv/linux/microblaze/kernel-features.h: Likewise. * sysdeps/unix/sysv/linux/s390/kernel-features.h [!__s390x__] (__ASSUME_SYSVIPC_BROKEN_MODE_T): Define. * sysdeps/unix/sysv/linux/sh/kernel-features.h (__ASSUME_SYSVIPC_BROKEN_MODE_T): Define. * sysdeps/unix/sysv/linux/m68k/kernel-features.h: Likewise. * sysdeps/unix/sysv/linux/bits/ipc-perm.h: New file. * sysdeps/unix/sysv/linux/powerpc/bits/ipc-perm.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/ipc-perm.h: Likewise. * sysdeps/unix/sysv/linux/bits/ipc.h (ipc_perm): Move to bits/ipc-perm.h. * sysdeps/unix/sysv/linux/hppa/bits/ipc-perm.h: New file. * sysdeps/unix/sysv/linux/kernel-features.h: Add comment about __ASSUME_SYSVIPC_BROKEN_MODE_T semantic. * sysdeps/unix/sysv/linux/msgctl.c (DEFAULT_VERSION): Define as 2.31 if __ASSUME_SYSVIPC_BROKEN_MODE_T is defined. (msgctl_syscall, __msgctl_mode16): New symbol. (__new_msgctl): Add bits for __ASSUME_SYSVIPC_BROKEN_MODE_T. * sysdeps/unix/sysv/linux/semctl.c: Likewise. * sysdeps/unix/sysv/linux/shmctl.c: Likewise. * sysdeps/unix/sysv/linux/arm/be/libc.abilist (GLIBC_2.31): Add msgctl, semctl, and shmctl. * sysdeps/sysv/linux/microblaze/be/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/sh/be/libc.abilist: Likewise. * conform/data/sys/ipc.h-data: Only xfail {struct ipc_perm} mode_t mode for Hurd. * sysdeps/unix/sysv/linux/m68k/Versions (libc) [GLIBC_2.31]: Add msgctl, semctl, and shmctl. * sysdeps/unix/sysv/linux/arm/be/Versions: New file. * sysdeps/unix/sysv/linux/microblaze/be/Versions: Likewise. * sysdeps/unix/sysv/linux/sh/be/Versions: Likewise. [1] http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/sys_ipc.h.html
* mips: Do not malloc on getdents64 fallbackAdhemerval Zanella2019-10-091-59/+81
| | | | | | | | | | | | | | | | | | | | | This patch changes how the fallback getdents64 implementation calls non-LFS getdents by replacing the scratch_buffer with static buffer plus a loop on getdents calls. This avoids the potential malloc call on scratch_buffer_set_array_size for large input buffer size at the cost of more getdents syscalls. It also adds a small optimization for older kernels, where the first ENOSYS failure for getdents64 disable subsequent calls. Check the dirent tests on a mips64-linux-gnu with getdents64 code disabled. * sysdeps/unix/sysv/linux/mips/mips64/getdents64.c (__getdents64): Add small optimization for older kernel to avoid issuing __NR_getdents64 on each call and replace scratch_buffer usage with a static allocated buffer. Reviewed-by: Florian Weimer <fweimer@redhat.com>
* nptl: Move pthread_attr_setschedparam implementation into libcFlorian Weimer2019-10-072-2/+0
| | | | | | | | This is part of the libpthread removal project: <https://sourceware.org/ml/libc-alpha/2019-10/msg00080.html> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* nptl: Move pthread_attr_getschedparam implementation into libcFlorian Weimer2019-10-072-2/+0
| | | | | | | | This is part of the libpthread removal project: <https://sourceware.org/ml/libc-alpha/2019-10/msg00080.html> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* nptl: Move pthread_attr_setinheritsched implementation into libc.Florian Weimer2019-10-042-2/+0
| | | | | | This is part of the libpthread removal project: <https://sourceware.org/ml/libc-alpha/2019-10/msg00080.html>
* Fix vDSO initialization on arm and mipsAndreas Schwab2019-09-241-2/+2
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* mips: Consolidate INTERNAL_VSYSCALL_CALLAdhemerval Zanella2019-09-174-36/+16
| | | | | | | | | | | | | | | | | This patch consolidates the mips, mips64, and mips64-n32 INTERNAL_VSYSCALL_CALL on a single implementation. No semantic changes. I checked against a build for mips-linux-gnu, mips64-linux-gnu, and mips64-n32-linux-gnu. * sysdeps/unix/sysv/linux/mips/mips32/sysdep.h (INTERNAL_VSYSCALL_CALL): Remove. * sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h (INTERNAL_VSYSCALL_CALL): Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n64/sysdep.h (INTERNAL_VSYSCALL_CALL): Likewise. * sysdeps/unix/sysv/linux/mips/sysdep.h (INTERNAL_VSYSCALL_CALL): New macro.
* Refactor vDSO initialization codeAdhemerval Zanella2019-09-173-71/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Linux vDSO initialization code the internal function pointers require a lot of duplicated boilerplate over different architectures. This patch aims to simplify not only the code but the required definition to enable a vDSO symbol. The changes are: 1. Consolidate all init-first.c on only one implementation and enable the symbol based on HAVE_*_VSYSCALL existence. 2. Set the HAVE_*_VSYSCALL to the architecture expected names string. 3. Add a new internal implementation, get_vdso_mangle_symbol, which returns a mangled function pointer. Currently the clock_gettime, clock_getres, gettimeofday, getcpu, and time are handled in an arch-independent way, powerpc still uses some arch-specific vDSO symbol handled in a specific init-first implementation. Checked on aarch64-linux-gnu, arm-linux-gnueabihf, i386-linux-gnu, mips64-linux-gnu, powerpc64le-linux-gnu, s390x-linux-gnu, sparc64-linux-gnu, and x86_64-linux-gnu. * sysdeps/powerpc/powerpc32/backtrace.c (is_sigtramp_address, is_sigtramp_address_rt): Use HAVE_SIGTRAMP_{RT}32 instead of SHARED. * sysdeps/powerpc/powerpc64/backtrace.c (is_sigtramp_address): Likewise. * sysdeps/unix/sysv/linux/aarch64/init-first.c: Remove file. * sysdeps/unix/sysv/linux/aarch64/libc-vdso.h: Likewise. * sysdeps/unix/sysv/linux/arm/init-first.c: Likewise. * sysdeps/unix/sysv/linux/arm/libc-vdso.h: Likewise. * sysdeps/unix/sysv/linux/mips/init-first.c: Likewise. * sysdeps/unix/sysv/linux/mips/libc-vdso.h: Likewise. * sysdeps/unix/sysv/linux/i386/init-first.c: Likewise. * sysdeps/unix/sysv/linux/riscv/init-first.c: Likewise. * sysdeps/unix/sysv/linux/riscv/libc-vdso.h: Likewise. * sysdeps/unix/sysv/linux/s390/init-first.c: Likewise. * sysdeps/unix/sysv/linux/s390/libc-vdso.h: Likewise. * sysdeps/unix/sysv/linux/sparc/init-first.c: Likewise. * sysdeps/unix/sysv/linux/sparc/libc-vdso.h: Likewise. * sysdeps/unix/sysv/linux/x86/libc-vdso.h: Likewise. * sysdeps/unix/sysv/linux/x86_64/init-first.c: Likewise. * sysdeps/unix/sysv/linux/aarch64/sysdep.h (HAVE_CLOCK_GETRES_VSYSCALL, HAVE_CLOCK_GETTIME_VSYSCALL, HAVE_GETTIMEOFDAY_VSYSCALL): Define value based on kernel exported name. * sysdeps/unix/sysv/linux/arm/sysdep.h (HAVE_CLOCK_GETTIME_VSYSCALL, HAVE_GETTIMEOFDAY_VSYSCALL): Likewise. * sysdeps/unix/sysv/linux/i386/sysdep.h (HAVE_CLOCK_GETTIME_VSYSCALL, HAVE_GETTIMEOFDAY_VSYSCALL): Likewise. * sysdeps/unix/sysv/linux/mips/sysdep.h (HAVE_CLOCK_GETTIME_VSYSCALL, HAVE_GETTIMEOFDAY_VSYSCALL): Likewise. * sysdeps/unix/sysv/linux/powerpc/sysdep.h (HAVE_CLOCK_GETRES_VSYSCALL, HAVE_CLOCK_GETTIME_VSYSCALL, HAVE_GETCPU_VSYSCALL, HAVE_TIME_VSYSCALL, HAVE_GET_TBFREQ, HAVE_SIGTRAMP_RT64, HAVE_SIGTRAMP_32, HAVE_SIGTRAMP_RT32i, HAVE_GETTIMEOFDAY_VSYSCALL): Likewise. * sysdeps/unix/sysv/linux/riscv/sysdep.h (HAVE_CLOCK_GETRES_VSYSCALL, HAVE_CLOCK_GETTIME_VSYSCALL, HAVE_GETTIMEOFDAY_VSYSCALL, HAVE_GETCPU_VSYSCALL): Likewise. * sysdeps/unix/sysv/linux/s390/sysdep.h (HAVE_CLOCK_GETRES_VSYSCALL, HAVE_CLOCK_GETTIME_VSYSCALL, HAVE_GETTIMEOFDAY_VSYSCALL, HAVE_GETCPU_VSYSCALL): Likewise. * sysdeps/unix/sysv/linux/sparc/sysdep.h (HAVE_CLOCK_GETTIME_VSYSCALL, HAVE_GETTIMEOFDAY_VSYSCALL): Likewise. * sysdeps/unix/sysv/linux/x86_64/sysdep.h (HAVE_CLOCK_GETTIME_VSYSCALL, HAVE_GETTIMEOFDAY_VSYSCALL, HAVE_GETCPU_VSYSCALL): Likewise. * sysdeps/unix/sysv/linux/dl-vdso.h (VDSO_NAME, VDSO_HASH): Define to invalid names if architecture does not define them. (get_vdso_mangle_symbol): New symbol. * sysdeps/unix/sysv/linux/init-first.c: New file. * sysdeps/unix/sysv/linux/libc-vdso.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/init-first.c (gettimeofday, clock_gettime, clock_getres, getcpu, time): Remove declaration. (__libc_vdso_platform_setup_arch): Likewise and use get_vdso_mangle_symbol to setup vDSO symbols. (sigtramp_rt64, sigtramp32, sigtramp_rt32, get_tbfreq): Add attribute_hidden. * sysdeps/unix/sysv/linux/powerpc/libc-vdso.h: Likewise. * sysdeps/unix/sysv/linux/sysdep-vdso.h (VDSO_SYMBOL): Remove definition.
* Remove PREPARE_VERSION and PREPARE_VERSION_KNOWAdhemerval Zanella2019-09-175-16/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes the PREPARE_VERSION and PREPARE_VERSION_KNOW macro and uses a static inline function instead, get_vdso_symbol. Each architecture that supports vDSO must define the Linux version and its hash for symbol resolution (VDSO_NAME and VDSO_HASH macro respectively). It also organizes the HAVE_*_VSYSCALL for mips, powerpc, and s390 to define them on a common header. The idea is to require less code to configure and enable vDSO support for newer ports. No semantic changes are expected. Checked with a build against all affected architectures. * sysdeps/unix/make-syscalls.sh: Make vDSO call use get_vdso_symbol. * sysdeps/unix/sysv/linux/aarch64/gettimeofday.c (__gettimeofday): Use get_vdso_symbol instead of _dl_vdso_vsym. * sysdeps/unix/sysv/linux/powerpc/time.c (time): Likewise. * sysdeps/unix/sysv/linux/riscv/flush-icache.c (__lookup_riscv_flush_icache): Likewise. * sysdeps/unix/sysv/linux/x86/gettimeofday.c (__gettimeofday): Likewise. * sysdeps/unix/sysv/linux/x86/time.c (time): Likewise. * sysdeps/unix/sysv/linux/powerpc/gettimeofday.c: Likewise. * sysdeps/unix/sysv/linux/aarch64/init-first.c: Likewise. * sysdeps/unix/sysv/linux/arm/init-first.c: Likewise. * sysdeps/unix/sysv/linux/i386/init-first.c: Likewise. * sysdeps/unix/sysv/linux/mips/init-first.c: Likewise. * sysdeps/unix/sysv/linux/powerpc/init-first.c: Likewise. * sysdeps/unix/sysv/linux/riscv/init-first.c: Likewise. * sysdeps/unix/sysv/linux/sparc/init-first.c: Likewise. * sysdeps/unix/sysv/linux/s390/init-first.c: Likewise. * sysdeps/unix/sysv/linux/x86_64/init-first.c: Likewise. * sysdeps/unix/sysv/linux/aarch64/sysdep.h (VDSO_NAME, VDSO_HASH): Define. * sysdeps/unix/sysv/linux/arm/sysdep.h (VDSO_NAME, VDSO_HASH): Likewise. * sysdeps/unix/sysv/linux/i386/sysdep.h (VDSO_NAME, VDSO_HASH): Likewise. * sysdeps/unix/sysv/linux/riscv/sysdep.h (VDSO_NAME, VDSO_HASH): Likewise. * sysdeps/unix/sysv/linux/sparc/sysdep.h (VDSO_NAME, VDSO_HASH): Likewise. * sysdeps/unix/sysv/linux/x86_64/sysdep.h (VDSO_NAME, VDSO_HASH): Likewise. * sysdeps/unix/sysv/linux/mips/mips32/sysdep.h (HAVE_CLOCK_GETTIME_VSYSCALL, HAVE_GETTIMEOFDAY_VSYSCALL): Remove definition. * sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h (HAVE_CLOCK_GETTIME_VSYSCALL, HAVE_GETTIMEOFDAY_VSYSCALL): Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n64/sysdep.h (HAVE_CLOCK_GETTIME_VSYSCALL, HAVE_GETTIMEOFDAY_VSYSCALL): Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h (HAVE_CLOCK_GETTIME_VSYSCALL, HAVE_GETTIMEOFDAY_VSYSCALL): Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h (HAVE_CLOCK_GETTIME_VSYSCALL, HAVE_GETTIMEOFDAY_VSYSCALL): Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h (HAVE_CLOCK_GETRES_VSYSCALL, HAVE_CLOCK_GETTIME_VSYSCALL, HAVE_GETTIMEOFDAY_VSYSCALL, HAVE_GETCPU_VSYSCALL): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h (HAVE_CLOCK_GETRES_VSYSCALL, HAVE_CLOCK_GETTIME_VSYSCALL, HAVE_GETTIMEOFDAY_VSYSCALL, HAVE_GETCPU_VSYSCALL): Likewise. * sysdeps/unix/sysv/linux/mips/sysdep.h: New file. * sysdeps/unix/sysv/linux/powerpc/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/s390/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/dl-vdso.h (PREPARE_VERSION, PREPARE_VERSION_KNOWN, VDSO_NAME_LINUX_2_6, VDSO_HASH_LINUX_2_6, VDSO_NAME_LINUX_2_6_15, VDSO_HASH_LINUX_2_6_15, VDSO_NAME_LINUX_2_6_29, VDSO_HASH_LINUX_2_6_29, VDSO_NAME_LINUX_4_15, VDSO_HASH_LINUX_4_15): Remove defines. (get_vdso_symbol): New function.
* Prefer https to http for gnu.org and fsf.org URLsPaul Eggert2019-09-0786-86/+86
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Also, change sources.redhat.com to sourceware.org. This patch was automatically generated by running the following shell script, which uses GNU sed, and which avoids modifying files imported from upstream: sed -ri ' s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g ' \ $(find $(git ls-files) -prune -type f \ ! -name '*.po' \ ! -name 'ChangeLog*' \ ! -path COPYING ! -path COPYING.LIB \ ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \ ! -path manual/texinfo.tex ! -path scripts/config.guess \ ! -path scripts/config.sub ! -path scripts/install-sh \ ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \ ! -path INSTALL ! -path locale/programs/charmap-kw.h \ ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \ ! '(' -name configure \ -execdir test -f configure.ac -o -f configure.in ';' ')' \ ! '(' -name preconfigure \ -execdir test -f preconfigure.ac ';' ')' \ -print) and then by running 'make dist-prepare' to regenerate files built from the altered files, and then executing the following to cleanup: chmod a+x sysdeps/unix/sysv/linux/riscv/configure # Omit irrelevant whitespace and comment-only changes, # perhaps from a slightly-different Autoconf version. git checkout -f \ sysdeps/csky/configure \ sysdeps/hppa/configure \ sysdeps/riscv/configure \ sysdeps/unix/sysv/linux/csky/configure # Omit changes that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines git checkout -f \ sysdeps/powerpc/powerpc64/ppc-mcount.S \ sysdeps/unix/sysv/linux/s390/s390-64/syscall.S # Omit change that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
* Finish move of clock_* functions to libc. [BZ #24959]Zack Weinberg2019-09-046-10/+20
| | | | | | | | | | | | | | | | In glibc 2.17, the functions clock_getcpuclockid, clock_getres, clock_gettime, clock_nanosleep, and clock_settime were moved from librt.so to libc.so, leaving compatibility stubs behind. Now that the dynamic linker no longer insists on finding versioned symbols in the same library that originally defined them, we do not need the stubs anymore, and this means we don't need GLIBC_PRIVATE __-prefix aliases for most of the functions anymore either. (clock_gettime still needs one.) For ports added before 2.17, libc.so needs to provide two symbol versions for each, the default at GLIBC_2.17 plus a compat version matching what librt had. While I'm at it, move the clock_*.c files and their tests from rt/ to time/.
* nptl: Move pthread_attr_getinheritsched implementation into libcFlorian Weimer2019-08-302-2/+0
| | | | Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* MIPS support for GNU hashMihailo Stojanovic2019-08-292-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch is a reimplementation of [1], which was submitted back in 2015. Copyright issue has been sorted [2] last year. It proposed a new section (.gnu.xhash) and related dynamic tag (GT_GNU_XHASH). The new section would be virtually identical to the existing .gnu.hash except for the translation table (xlat) which would contain correct MIPS .dynsym indexes corresponding to the hashvals in chains. This is because MIPS ABI imposes a different ordering of the dynsyms than the one expected by the .gnu.hash section. Another addition would be a leading word at the beggining of the section, which would contain the number of entries in the translation table. In this patch, the new section name and dynamic tag are changed to reflect the fact that the section should be treated as MIPS specific (.MIPS.xhash and DT_MIPS_XHASH). This patch addresses the alignment issue reported in [3] which is caused by the leading word of the .MIPS.xhash section. Leading word is now removed in the corresponding binutils patch, and the number of entries in the translation table is computed using DT_MIPS_SYMTABNO dynamic tag. Since the MIPS specific dl-lookup.c file was removed following the initial patch submission, I opted for the definition of three new macros in the generic ldsodefs.h. ELF_MACHINE_GNU_HASH_ADDRIDX defines the index of the dynamic tag in the l_info array. ELF_MACHINE_HASH_SYMIDX is used to calculate the index of a symbol in GNU hash. On MIPS, it is defined to look up the symbol index in the translation table. ELF_MACHINE_XHASH_SETUP is defined for MIPS only. It initializes the .MIPS.xhash pointer in the link_map_machine struct. The other major change is bumping the highest EI_ABIVERSION value for MIPS to suggest that the dynamic linker now supports GNU hash. The patch was tested by running the glibc testsuite for the three MIPS ABIs (o32, n32 and n64) and for x86_64-linux-gnu. [1] https://sourceware.org/ml/binutils/2015-10/msg00057.html [2] https://sourceware.org/ml/binutils/2018-03/msg00025.html [3] https://sourceware.org/ml/binutils/2016-01/msg00006.html * elf/dl-addr.c (determine_info): Calculate the symbol index using the newly defined ELF_MACHINE_HASH_SYMIDX macro. * elf/dl-lookup.c (do_lookup_x): Ditto. (_dl_setup_hash): Initialize MIPS xhash translation table. * elf/elf.h (SHT_MIPS_XHASH): New define. (DT_MIPS_XHASH): New define. * sysdeps/generic/ldsodefs.h (ELF_MACHINE_GNU_HASH_ADDRIDX): New define. (ELF_MACHINE_HASH_SYMIDX): Ditto. (ELF_MACHINE_XHASH_SETUP): Ditto. * sysdeps/mips/ldsodefs.h (ELF_MACHINE_GNU_HASH_ADDRIDX): New define. (ELF_MACHINE_HASH_SYMIDX): Ditto. (ELF_MACHINE_XHASH_SETUP): Ditto. * sysdeps/mips/linkmap.h (struct link_map_machine): New member. * sysdeps/unix/sysv/linux/mips/ldsodefs.h: Increment valid ABI version. * sysdeps/unix/sysv/linux/mips/libc-abis: New ABI version.
* nptl: Move pthread_attr_setdetachstate implementation into libcFlorian Weimer2019-08-282-2/+0
| | | | Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Don't put non-ASCII into installed headersPaul Eggert2019-08-231-2/+2
| | | | | | | | Move non-ASCII contributor names from installed headers into contrib.texi when possible, and when it's not (the copyright notice in sysdeps/unix/sysv/linux/mips/sys/user.h) go back to ASCIIfied names. Problem reported by Joseph Myers in: https://www.sourceware.org/ml/libc-alpha/2019-08/msg00646.html
* Fix spellings of contributor names in comments and docPaul Eggert2019-08-232-3/+3
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* [MIPS] Raise highest supported EI_ABIVERSION value [BZ #24916]Mihailo Stojanovic2019-08-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | This bumps the highest valid EI_ABIVERSION value to ABSOLUTE ABI. New testcase loads the symbol from the GOT with the "lb" instruction so that the EI_ABIVERSION header field of the shared object is set to ABSOLUTE (it doesn't actually check the value of the symbol), and makes sure that the main executable is executed without "ABI version invalid" error. Tested for all three ABIs (o32, n32, n64) using both static linker which handles undefined weak symbols correctly [1] (and sets the EI_ABIVERSION of the test module) and the one that doesn't (EI_ABIVERSION left as 0). [1] https://sourceware.org/ml/binutils/2018-07/msg00268.html [BZ #24916] * sysdeps/mips/Makefile [$(subdir) = elf] (tests): Add tst-undefined-weak. [$(subdir) = elf] (modules-names): Add tst-undefined-weak-lib. [$(subdir) = elf] ($(objpfx)tst-undefined-weak): Add dependency. * sysdeps/mips/tst-undefined-weak-lib.S: New file. * sysdeps/mips/tst-undefined-weak.c: Likewise. * sysdeps/unix/sysv/linux/mips/ldsodefs.h (VALID_ELF_ABIVERSION): Increment highest valid ABIVERSION value.
* mips: Force RWX stack for hard-float builds that can run on pre-4.8 kernelsDragan Mladjenovic2019-08-233-5/+89
| | | | | | | | | | | | | | | | | | | | | | | | | | Linux/Mips kernels prior to 4.8 could potentially crash the user process when doing FPU emulation while running on non-executable user stack. Currently, gcc doesn't emit .note.GNU-stack for mips, but that will change in the future. To ensure that glibc can be used with such future gcc, without silently resulting in binaries that might crash in runtime, this patch forces RWX stack for all built objects if configured to run against minimum kernel version less than 4.8. * sysdeps/unix/sysv/linux/mips/Makefile (test-xfail-check-execstack): Move under mips-has-gnustack != yes. (CFLAGS-.o*, ASFLAGS-.o*): New rules. Apply -Wa,-execstack if mips-force-execstack == yes. * sysdeps/unix/sysv/linux/mips/configure: Regenerated. * sysdeps/unix/sysv/linux/mips/configure.ac (mips-force-execstack): New var. Set to yes for hard-float builds with minimum_kernel < 4.8.0 or minimum_kernel not set at all. (mips-has-gnustack): New var. Use value of libc_cv_as_noexecstack if mips-force-execstack != yes, otherwise set to no.
* Refactor sigcontextinfo.hAdhemerval Zanella2019-08-232-14/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch refactor sigcontextinfo.h header to use SA_SIGINFO as default for both gmon and debug implementations. This allows simplify profil-counter.h on Linux to use a single implementation and remove the requirements for newer ports to redefine __sigaction/sigaction to use SA_SIGINFO. The GET_PC macro is also replaced with a function sigcontext_get_pc that returns an uintptr_t instead of a void pointer. It allows easier convertion to integer on ILP32 architecture, such as x32, without the need to suppress compiler warnings. The patch also requires some refactor of register-dump.h file for some architectures (to reflect it is now called from a sa_sigaction instead of sa_handler signal context). - Alpha, i386, and s390 are straighfoward to take in consideration the new argument type. - ia64 takes in consideration the kernel pass a struct sigcontextt as third argument for sa_sigaction. - sparc take in consideration the kernel pass a pt_regs struct as third argument for sa_sigaction. - m68k dummy function is removed and the FP state is dumped on register_dump itself. - For SH the register-dump.h file is consolidate on a common implementation and the floating-point state is checked based on ownedfp field. The register_dump does not change its output format in any affected architecture. I checked on x86_64-linux-gnu, i686-linux-gnu, aarch64-linux-gnu, arm-linux-gnueabihf, sparcv9-linux-gnu, sparc64-linux-gnu, powerpc-linux-gnu, powerpc64-linux-gnu, and powerpc64le-linux-gnu. I also checked the libSegFault.so through catchsegv on alpha-linux-gnu, m68k-linux-gnu and sh4-linux-gnu to confirm the output has not changed. Adhemerval Zanella <adhemerval.zanella@linaro.org> Florian Weimer <fweimer@redhat.com> * debug/segfault.c (install_handler): Use SA_SIGINFO if defined. * sysdeps/generic/profil-counter.h (__profil_counter): Cast to uintptr_t. * sysdeps/generic/sigcontextinfo.h (GET_PC): Rename to sigcontext_get_pc and return aligned cast to uintptr_t. * sysdeps/mach/hurd/i386/sigcontextinfo.h (GET_PC): Likewise. * sysdeps/posix/profil.c (profil_count): Change PC argument to uintptr_t. (__profil): Use SA_SIGINFO. * sysdeps/posix/sprofil.c (profil_count): Change PCP argument to uintptr_t. (__sprofil): Use SA_SIGINFO. * sysdeps/unix/sysv/linux/profil-counter.h: New file. * sysdeps/unix/sysv/linux/aarch64/profil-counter.h: Remove file. * sysdeps/unix/sysv/linux/csky/profil-counter.h: Likewise. * sysdeps/unix/sysv/linux/hppa/profil-counter.h: Likewise. * sysdeps/unix/sysv/linux/i386/profil-counter.h: Likewise. * sysdeps/unix/sysv/linux/ia64/profil-counter.h: Likewise. * sysdeps/unix/sysv/linux/microblaze/profil-counter.h: Likewise. * sysdeps/unix/sysv/linux/mips/profil-counter.h: Likewise. * sysdeps/unix/sysv/linux/nios2/profil-counter.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/profil-counter.h: Likewise. * sysdeps/unix/sysv/linux/x86_64/profil-counter.h: Likewise. * sysdeps/unix/sysv/linux/riscv/profil-counter.h: Likewise. * sysdeps/sysv/linux/s390/s390-32/profil-counter.h: Likewise. * sysdeps/sysv/linux/s390/s390-64/profil-counter.h: Likewise. * sysdeps/unix/sysv/linux/sh/profil-counter.h: Likewise. * sysdeps/unix/sysv/linux/arm/profil-counter.h (__profil_counter): Assume SA_SIGINFO and use sigcontext_get_pc instead of GET_PC. * sysdeps/unix/sysv/linux/sparc/profil-counter.h: New file. * sysdeps/unix/sysv/linux/sparc/sparc64/profil-counter.h: Remove file. * sysdeps/unix/sysv/linux/sparc/sparc32/profil-counter.h: Likewise. * sysdpes/unix/sysv/linux/aarch64/sigcontextinfo.h (SIGCONTEXT, GET_PC, __sigaction, sigaction): Remove defines. (sigcontext_get_pc): New function. * sysdeps/unix/sysv/linux/alpha/sigcontextinfo.h: Likewise. * sysdeps/unix/sysv/linux/arm/sigcontextinfo.h: Likewise. * sysdeps/unix/sysv/linux/csky/sigcontextinfo.h: Likewise. * sysdeps/unix/sysv/linux/hppa/sigcontextinfo.h: Likewise. * sysdeps/unix/sysv/linux/i386/sigcontextinfo.h: Likewise. * sysdeps/unix/sysv/linux/ia64/sigcontextinfo.h: Likewise. * sysdeps/unix/sysv/linux/m68k/sigcontextinfo.h: Likewise. * sysdeps/unix/sysv/linux/mips/sigcontextinfo.h: Likewise. * sysdeps/unix/sysv/linux/nios2/sigcontextinfo.h: Likewise. * sysdeps/unix/sysv/linux/s390/sigcontextinfo.h: Likewise. * sysdeps/unix/sysv/linux/microblaze/sigcontextinfo.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/sigcontextinfo.h: Likewise. * sysdeps/unix/sysv/linux/riscv/sigcontextinfo.h: Likewise. * sysdeps/unix/sysv/linux/sh/sigcontextinfo.h: Likewise. * sysdeps/sysv/linux/sparc/sparc32/sigcontextinfo.h: Likewise. * sysdeps/sysv/linux/sparc/sparc64/sigcontextinfo.h: Likewise. * sysdeps/unix/sysv/linux/x86_64/sigcontextinfo.h: Likewise. * sysdeps/unix/sysv/linux/alpha/register-dump.h (register_dump): Handle CTX argument as ucontext_t. * sysdeps/unix/sysv/linux/i386/register-dump.h: Likewise. Likewise. * sysdeps/unix/sysv/linux/m68k/register-dump.h: Likewise. * sysdeps/sysv/linux/s390/s390-32/register-dump.h: Likewise. * sysdeps/sysv/linux/s390/s390-64/register-dump.h: Likewise. * sysdeps/unix/sysv/linux/sh/register-dump.h: New file. * sysdeps/unix/sysv/linux/sh/sh4/register-dump.h: Remove File. * sysdeps/unix/sysv/linux/sh/sh3/register-dump.h: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/register-dump.h: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/register-dump.h: Likewise. * sysdeps/unix/sysv/linux/Makefile (tests-internal): Add tst-sigcontextinfo-get_pc. * sysdeps/unix/sysv/linux/tst-sigcontextinfo-get_pc.c: New file. (CFLAGS-tst-sigcontextinfo-get_pc.c): New rule.
* nptl: Move pthread_attr_getdetachstate implementation into libcFlorian Weimer2019-08-162-2/+0
| | | | Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* nptl: Move pthread_attr_init implementation into libcFlorian Weimer2019-08-152-4/+0
| | | | | Both the original GLIB_2.0 version and the current GLIBC_2.1 version need to be moved.
* Make totalorder and totalordermag functions take pointer arguments.Joseph Myers2019-08-152-0/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The resolution of C floating-point Clarification Request 25 <http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2397.htm#dr_25> is that the totalorder and totalordermag functions should take pointer arguments, and this has been adopted in C2X (with const added; note that the integration of this change into C2X is present in the C standard git repository but postdates the most recent public PDF draft). This patch updates glibc accordingly. As a defect resolution, the API is changed unconditionally rather than supporting any sort of TS 18661-1 mode for compilation with the old version of the API. There are compat symbols for existing binaries that pass floating-point arguments directly. As a consequence of changing to pointer arguments, there are no longer type-generic macros in tgmath.h for these functions. Because of the fairly complicated logic for creating libm function aliases and determining the set of aliases to create in a given glibc configuration, rather than duplicating all that in individual source files to create the versioned and compat symbols, the source files for the various versions of totalorder functions are set up to redefine weak_alias before using libm_alias_* macros to create the symbols required. In turn, this requires creating a separate alias for each symbol version pointing to the same implementation (see binutils bug <https://sourceware.org/bugzilla/show_bug.cgi?id=23840>), which is done automatically using __COUNTER__. (As I noted in <https://sourceware.org/ml/libc-alpha/2018-10/msg00631.html>, it might well make sense for glibc's symbol versioning macros to do that alias creation with __COUNTER__ themselves, which would somewhat simplify the logic in the totalorder source files.) It is of course desirable to test the compat symbols. I did this with the generic libm-test machinery, but didn't wish to duplicate the actual tables of test inputs and outputs, and thought it risky to attempt to have a single object file refer to both default and compat versions of the same function in order to test them together. Thus, I created libm-test-compat_totalorder.inc and libm-test-compat_totalordermag.inc which include the generated .c files (with the processed version of those tables of inputs) from the non-compat tests, and added appropriate dependencies. I think this provides sufficient test coverage for the compat symbols without also needing to make the special ldbl-96 and ldbl-128ibm tests (of peculiarities relating to the representations of those formats that can't be covered in the generic tests) run for the compat symbols. Tests of compat symbols need to be internal tests, meaning _ISOMAC is not defined. Making some libm-test tests into internal tests showed up two other issues. GCC diagnoses duplicate macro definitions of __STDC_* macros, including __STDC_WANT_IEC_60559_TYPES_EXT__; I added an appropriate conditional and filed <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91451> for this issue. On ia64, include/setjmp.h ends up getting included indirectly from libm-symbols.h, resulting in conflicting definitions of the STR macro (also defined in libm-test-driver.c); I renamed the macros in include/setjmp.h. (It's arguable that we should have common internal headers used everywhere for stringizing and concatenation macros.) Tested for x86_64 and x86, and with build-many-glibcs.py. * math/bits/mathcalls.h [__GLIBC_USE (IEC_60559_BFP_EXT) || __MATH_DECLARING_FLOATN] (totalorder): Take pointer arguments. [__GLIBC_USE (IEC_60559_BFP_EXT) || __MATH_DECLARING_FLOATN] (totalordermag): Likewise. * manual/arith.texi (totalorder): Likewise. (totalorderf): Likewise. (totalorderl): Likewise. (totalorderfN): Likewise. (totalorderfNx): Likewise. (totalordermag): Likewise. (totalordermagf): Likewise. (totalordermagl): Likewise. (totalordermagfN): Likewise. (totalordermagfNx): Likewise. * math/tgmath.h (__TGMATH_BINARY_REAL_RET_ONLY): Remove macro. [__GLIBC_USE (IEC_60559_BFP_EXT)] (totalorder): Likewise. [__GLIBC_USE (IEC_60559_BFP_EXT)] (totalordermag): Likewise. * math/Versions (GLIBC_2.31): Add totalorder, totalorderf, totalorderl, totalordermag, totalordermagf, totalordermagl, totalorderf32, totalorderf64, totalorderf32x, totalordermagf32, totalordermagf64, totalordermagf32x, totalorderf64x, totalordermagf64x, totalorderf128 and totalordermagf128. * math/Makefile (libm-test-funcs-noauto): Add compat_totalorder and compat_totalordermag. (libm-test-funcs-compat): New variable. (libm-tests-compat): Likewise. (tests): Do not include compat tests. (tests-internal): Add compat tests. ($(foreach t,$(libm-tests-base), $(objpfx)$(t)-compat_totalorder.o)): Depend on $(objpfx)libm-test-totalorder.c. ($(foreach t,$(libm-tests-base), $(objpfx)$(t)-compat_totalordermag.o): Depend on $(objpfx)libm-test-totalordermag.c. (tgmath3-macros): Remove totalorder and totalordermag. * math/libm-test-compat_totalorder.inc: New file. * math/libm-test-compat_totalordermag.inc: Likewise. * math/libm-test-driver.c (struct test_ff_i_data): Update comment. (RUN_TEST_fpfp_b): New macro. (RUN_TEST_LOOP_fpfp_b): Likewise. * math/libm-test-totalorder.inc (totalorder_test_data): Use TEST_fpfp_b. (totalorder_test): Condition on [!COMPAT_TEST]. (do_test): Likewise. * math/libm-test-totalordermag.inc (totalordermag_test_data): Use TEST_fpfp_b. (totalordermag_test): Condition on [!COMPAT_TEST]. (do_test): Likewise. * math/gen-tgmath-tests.py (Tests.add_all_tests): Remove totalorder and totalordermag. * math/test-tgmath.c (NCALLS): Change to 132. (F(compile_test)): Do not call totalorder or totalordermag. (F(totalorder)): Remove. (F(totalordermag)): Likewise. * include/float.h (__STDC_WANT_IEC_60559_TYPES_EXT__): Do not define if [__STDC_WANT_IEC_60559_TYPES_EXT__]. * include/setjmp.h [!_ISOMAC] (STR_HELPER): Rename to SJSTR_HELPER. [!_ISOMAC] (STR): Rename to SJSTR. Update call to STR_HELPER. [!_ISOMAC] (TEST_SIZE): Update call to STR. [!_ISOMAC] (TEST_ALIGN): Likewise. [!_ISOMAC] (TEST_OFFSET): Likewise. * sysdeps/ieee754/dbl-64/s_totalorder.c: Include <shlib-compat.h> and <first-versions.h>. (__totalorder): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/dbl-64/s_totalordermag.c: Include <shlib-compat.h> and <first-versions.h>. (__totalordermag): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/dbl-64/wordsize-64/s_totalorder.c: Include <shlib-compat.h> and <first-versions.h>. (__totalorder): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/dbl-64/wordsize-64/s_totalordermag.c: Include <shlib-compat.h> and <first-versions.h>. (__totalordermag): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/float128/float128_private.h (__totalorder_compatl): New macro. (__totalordermag_compatl): Likewise. * sysdeps/ieee754/flt-32/s_totalorderf.c: Include <shlib-compat.h> and <first-versions.h>. (__totalorderf): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/flt-32/s_totalordermagf.c: Include <shlib-compat.h> and <first-versions.h>. (__totalordermagf): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/ldbl-128/s_totalorderl.c: Include <shlib-compat.h> and <first-versions.h>. (__totalorderl): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/ldbl-128/s_totalordermagl.c: Include <shlib-compat.h> and <first-versions.h>. (__totalordermagl): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/ldbl-128ibm/s_totalorderl.c: Include <shlib-compat.h>. (__totalorderl): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/ldbl-128ibm/s_totalordermagl.c: Include <shlib-compat.h>. (__totalordermagl): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/ldbl-96/s_totalorderl.c: Include <shlib-compat.h> and <first-versions.h>. (__totalorderl): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/ldbl-96/s_totalordermagl.c: Include <shlib-compat.h> and <first-versions.h>. (__totalordermagl): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/ldbl-opt/nldbl-totalorder.c (totalorderl): Take pointer arguments. * sysdeps/ieee754/ldbl-opt/nldbl-totalordermag.c (totalordermagl): Likewise. * sysdeps/ieee754/ldbl-128ibm/test-totalorderl-ldbl-128ibm.c (do_test): Update calls to totalorderl and totalordermagl. * sysdeps/ieee754/ldbl-96/test-totalorderl-ldbl-96.c (do_test): Update calls to totalorderl and totalordermagl. * sysdeps/mach/hurd/i386/libm.abilist: Update. * sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/csky/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/riscv/rv64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
* nptl: Remove pthread_self compatibility symbol from libpthreadFlorian Weimer2019-08-152-2/+0
| | | | | The symbol is no longer needed because since glibc 2.30, the dynamic loader continues searching for the symbol in libc.
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-11-08 01:27:20 +0000