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* mach: Make xpg_strerror_r set a message on errorSamuel Thibault2022-08-271-6/+10
| | | | | | | | | posix advises to have strerror_r fill a message even when we are returning an error. This makes mach's xpg_strerror_r do this, like the generic version does. Spotted by the libunistring testsuite test-strerror_r
* mach: Fix incoherency between perror and strerrorSamuel Thibault2022-08-271-1/+1
| | | | | | | | | | | | 08d2024b4167 ("string: Simplify strerror_r") inadvertently made __strerror_r print unknown error system in decimal while the original code was printing it in hexadecimal. perror was kept printing in hexadecimal in 725eeb4af14c ("string: Use tls-internal on strerror_l"), let us keep both coherent. This also fixes a duplicate ':' Spotted by the libunistring testsuite test-perror2
* csu: Change start code license to have link exceptionSzabolcs Nagy2022-08-264-10/+76
| | | | | | | | | | | | | | | The start code can get linked into dynamic linked executables where LGPL would require shipping the source or linkable binaries when the executable is distributed. On some targets the license exception was missing in start.S (which is compiled into crt1.o and Scrt1.o which may end up linked into PDE and PIE binaries). I did not review what other code may end up in executables, just fixed the start.S license inconsistency across targets. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* s390: Move hwcaps/platform names out of _rtld_global_roFlorian Weimer2022-08-255-64/+44
| | | | | | | | | | | Changes to these arrays are often backported to stable releases, but additions to these arrays shift the offsets of the following _rltd_global_ro members, thus breaking the GLIBC_PRIVATE ABI. Obviously, this change is itself an internal ABI break, but at least it will avoid further ABI breaks going forward. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* Revert "Detect ld.so and libc.so version inconsistency during startup"Florian Weimer2022-08-251-4/+0
| | | | | | | | | | | | | | | | This reverts commit 6f85dbf102ad7982409ba0fe96886caeb6389fef. Once this change hits the release branches, it will require relinking of all statically linked applications before static dlopen works again, for the majority of updates on release branches: The NEWS file is regularly updated with bug references, so the __libc_early_init suffix changes, and static dlopen cannot find the function anymore. While this ABI check is still technically correct (we do require rebuilding & relinking after glibc updates to keep static dlopen working), it is too drastic for stable release branches. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Detect ld.so and libc.so version inconsistency during startupFlorian Weimer2022-08-241-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The files NEWS, include/link.h, and sysdeps/generic/ldsodefs.h contribute to the version fingerprint used for detection. The fingerprint can be further refined using the --with-extra-version-id configure argument. _dl_call_libc_early_init is replaced with _dl_lookup_libc_early_init. The new function is used store a pointer to libc.so's __libc_early_init function in the libc_map_early_init member of the ld.so namespace structure. This function pointer can then be called directly, so the separate invocation function is no longer needed. The versioned symbol lookup needs the symbol versioning data structures, so the initialization of libc_map and libc_map_early_init is now done from _dl_check_map_versions, after this information becomes available. (_dl_map_object_from_fd does not set this up in time, so the initialization code had to be moved from there.) This means that the separate initialization code can be removed from dl_main because _dl_check_map_versions covers all maps, including the initial executable loaded by the kernel. The lookup still happens before relocation and the invocation of IFUNC resolvers, so IFUNC resolvers are protected from ABI mismatch. The __libc_early_init function pointer is not protected because so little code runs between the pointer write and the invocation (only dynamic linker code and IFUNC resolvers). Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* Merge _GL_UNUSED C23 patch from GnulibPaul Eggert2022-08-231-2/+2
| | | | | | | | | * posix/getopt.c (_getopt_initialize): * sysdeps/posix/tempname.c (try_dir, try_nocreate): Put _GL_UNUSED before args instead of after. This makes no difference for glibc. It is needed for Gnulib when being compiled on non-GCC C23 compilers.
* LoongArch: Fix dl-machine.h code formatting.Xi Ruoyao2022-08-241-8/+4
| | | | No functional change.
* hurd: Fix starting static binaries with stack protection enabledSamuel Thibault2022-08-222-2/+22
| | | | | | | gcc introduces gs:0x14 accesses in most functions, so we need some tcbhead to be ready very early during initialization. This configures a static area which can be referenced by various protected functions, until proper TLS is set up.
* htl: Make pthread*_cond_timedwait register wref before releasing mutexSamuel Thibault2022-08-222-8/+12
| | | | | Otherwise another thread could be rightly trying to destroy the condition, see e.g. tst-cond20.
* htl: make __pthread_hurd_cond_timedwait_internal check mutex is heldSamuel Thibault2022-08-221-0/+4
| | | | Like __pthread_cond_timedwait_internal already does.
* Add AArch64 HWCAP2_* constants from Linux 5.19Joseph Myers2022-08-221-0/+9
| | | | | | | Linux 5.19 adds more HWCAP2_* values for AArch64; add these to its bits/hwcap.h header in glibc. Tested with build-many-glibcs.py for aarch64-linux-gnu.
* Add AGROUP from Linux 5.19 to sys/acct.h, remove Alpha version (bug 29502)Joseph Myers2022-08-222-64/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Linux 5.19 adds a new accounting flag AGROUP; add it to the enumeration in sys/acct.h. This shows up that the Alpha-specific variant of this header has a different set of constants and struct acct, which appear to be the constants and structure layout from Linux 2.0. These were changed some time between Linux 2.0 and Linux 2.2; I see no evidence of an Alpha-specific layout or set of constants, but haven't checked the detailed Linux kernel history between those versions. Rather, it looks like tha Alpha-specific header was originally needed because of the use of types in the kernel structure (such as uid_t and gid_t) that had different sizes on Alpha, and when glibc was updated for changes to the structure and constants in the kernel 1998-10-02 Andreas Jaeger <aj@arthur.rhein-neckar.de> * sysdeps/unix/sysv/linux/sys/acct.h: Bring in sync with current linux 2.1 version. that simply omitted to do anything about the Alpha version. Thus, remove the Alpha version in order to get the updated definitions into use on Alpha, as I don't think the interfaces are actually different for Alpha with any kernel version supported by glibc. Tested for x86_64, and with build-many-glibcs.py for alpha-linux-gnu.
* alpha: Fix generic brk system call emulation in __brk_call (bug 29490)Florian Weimer2022-08-221-4/+3
| | | | | | | | The kernel special-cases the zero argument for alpha brk, and we can use that to restore the generic Linux error handling behavior. Fixes commit b57ab258c1140bc45464b4b9908713e3e0ee35aa ("Linux: Introduce __brk_call for invoking the brk system call").
* hurd: Assume non-suid during bootstrapSamuel Thibault2022-08-191-2/+7
| | | | | | | | We do not have a hurd data block only when bootstrapping the system, in which case we don't have a notion of suid yet anyway. This is needed, otherwise init_standard_fds would check that standard file descriptors are allocated, which is meaningless during bootstrap.
* S390: Fix werror=unused-variable in ifunc-impl-list.c.Stefan Liebler2022-08-181-1/+3
| | | | | | | | | | If the architecture level set is high enough, no IFUNCs are used at all and the variable i would be unused. Then the build fails with: ../sysdeps/s390/multiarch/ifunc-impl-list.c: In function ‘__libc_ifunc_impl_list’: ../sysdeps/s390/multiarch/ifunc-impl-list.c:76:10: error: unused variable ‘i’ [-Werror=unused-variable] 76 | size_t i = max; | ^ cc1: all warnings being treated as errors
* Ensure calculations happen with desired rounding mode in y1lf128Michael Hudson-Doyle2022-08-181-0/+3
| | | | | | | | | | | | math/test-float128-y1 fails on x86_64 and ppc64el with gcc 12 and -O3, because code inside a block guarded by SET_RESTORE_ROUNDL is being moved after the rounding mode has been restored. Use math_force_eval to prevent this (and insert some math_opt_barrier calls to prevent code from being moved before the rounding mode is set). Fixes #29463 Reviewed-By: Wilco Dijkstra <Wilco.Dijkstra@arm.com>
* Linux: Fix enum fsconfig_command detection in <sys/mount.h>Florian Weimer2022-08-161-3/+3
| | | | | | | | | The #ifdef FSOPEN_CLOEXEC check did not work because the macro was always defined in this header prior to the check, so that the <linux/mount.h> contents did not matter. Fixes commit 774058d72942249f71d74e7f2b639f77184160a6 ("linux: Fix sys/mount.h usage with kernel headers").
* Move ip_mreqn structure from Linux to genericSamuel Thibault2022-08-151-8/+0
| | | | | | | | I.e. from sysdeps/unix/sysv/linux/bits/in.h to netinet/in.h It is following both the BSD and Linux definitions. Reviewed-by: Florian Weimer <fweimer@redhat.com>
* Linux: Terminate subprocess on late failure in tst-pidfd (bug 29485)Florian Weimer2022-08-151-2/+5
| | | | Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* arm: Remove nested functionf rom relocate_pc24Adhemerval Zanella2022-08-121-10/+13
| | | | Checked on arm-linux-gnueabihf.
* linux: Fix sys/mount.h usage with kernel headersAdhemerval Zanella2022-08-123-8/+137
| | | | | | | | | | | | | | | | | | | | | | | | | | | Now that kernel exports linux/mount.h and includes it on linux/fs.h, its definitions might clash with glibc exports sys/mount.h. To avoid the need to rearrange the Linux header to be always after glibc one, the glibc sys/mount.h is changed to: 1. Undefine the macros also used as enum constants. This covers prior inclusion of <linux/mount.h> (for instance MS_RDONLY). 2. Include <linux/mount.h> based on the usual __has_include check (needs to use __has_include ("linux/mount.h") to paper over GCC bugs. 3. Define enum fsconfig_command only if FSOPEN_CLOEXEC is not defined. (FSOPEN_CLOEXEC should be a very close proxy.) 4. Define struct mount_attr if MOUNT_ATTR_SIZE_VER0 is not defined. (Added in the same commit on the Linux side.) This patch also adds some tests to check if including linux/fs.h and linux/mount.h after and before sys/mount.h does work. Checked on x86_64-linux-gnu. Reviewed-by: Florian Weimer <fweimer@redhat.com>
* linux: Use compile_c_snippet to check linux/mount.h availabilityAdhemerval Zanella2022-08-121-0/+5
| | | | | | Checked on x86_64-linux-gnu. Reviewed-by: Florian Weimer <fweimer@redhat.com>
* linux: Mimic kernel defition for BLOCK_SIZEAdhemerval Zanella2022-08-121-1/+1
| | | | | | | To avoid possible warnings if the kernel header is included before sys/mount.h. Reviewed-by: Florian Weimer <fweimer@redhat.com>
* linux: Use compile_c_snippet to check linux/pidfd.h availabilityAdhemerval Zanella2022-08-121-3/+5
| | | | | | | | Instead of tying to a specific kernel version. Checked on x86_64-linux-gnu. Reviewed-by: Florian Weimer <fweimer@redhat.com>
* LoongArch: Add pointer mangling support.caiyinyu2022-08-123-3/+74
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* AArch64: Fix typo in sve configure check (BZ# 29394)Wilco Dijkstra2022-08-112-4/+4
| | | | Fix a typo in the SVE configure check. This fixes [BZ# 29394].
* libio: Improve performance of IO locksWilco Dijkstra2022-08-111-9/+19
| | | | | | | | | | | | Improve performance of recursive IO locks by adding a fast path for the single-threaded case. To reduce the number of memory accesses for locking/unlocking, only increment the recursion counter if the lock is already taken. On Neoverse V1, a microbenchmark with many small freads improved by 2.9x. Multithreaded performance improved by 2%. Reviewed-by: Cristian Rodríguez <crrodriguez@opensuse.org>
* tst-process_madvise: Check process_madvise-syscall support.Stefan Liebler2022-08-111-2/+5
| | | | | | | | | | | | So far this test checks if pidfd_open-syscall is supported, which was introduced with linux 5.3. The process_madvise-syscall was introduced with linux 5.10. Thus you'll get FAILs if you are running a kernel in between. This patch adds a check if the first process_madvise-syscall returns ENOSYS and in this case will fail with UNSUPPORTED. Reviewed-by: Florian Weimer <fweimer@redhat.com>
* x86: Fix `#define STRCPY` guard in strcpy-sse2.SNoah Goldstein2022-08-091-1/+1
| | | | | | `#ifndef STPCPY` is incorrect for checking if `STRCPY` is already defined. It doesn't end up mattering as the whole check is guarded by `#if IS_IN (libc)` but is incorrect none the less.
* i386: Use cmpl instead of cmpAdhemerval Zanella2022-08-052-12/+12
| | | | Clang cannot assemble cmp in the AT&T dialect mode.
* i386: Use fldt instead of fld on e_logl.SAdhemerval Zanella2022-08-051-2/+2
| | | | Clang cannot assemble fldt in the AT&T dialect mode.
* i386: Replace movzx with movzblFangrui Song2022-08-041-18/+18
| | | | | | | | Similar to 6720d36b6623c5e48c070d86acf61198b33e144e for x86-64. Clang cannot assemble movzx in the AT&T dialect mode. Change movzx to movzbl, which follows the AT&T dialect and is used elsewhere in the file.
* i386: Remove RELA supportAdhemerval Zanella2022-08-042-197/+1
| | | | | Now that prelink is not support, there is no need to keep supporting rela for non bootstrap.
* arm: Remove RELA supportAdhemerval Zanella2022-08-042-106/+1
| | | | | Now that prelink is not support, there is no need to keep supporting rela for non bootstrap.
* Remove ldd libc4 supportAdhemerval Zanella2022-08-0412-134/+0
| | | | The older libc versions are obsolete for over twenty years now.
* Assume only FLAG_ELF_LIBC6 suportLucas A. M. Magalhaes2022-08-0412-268/+0
| | | | | | | | | | | The older libc versions are obsolete for over twenty years now. This patch removes the special flags for libc5 and libc4 and assumes that all libraries cached are libc6 compatible and use FLAG_ELF_LIBC6. Checked with a build for all affected architectures. Co-authored-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Remove left over LD_LIBRARY_VERSION usagesAdhemerval Zanella2022-08-045-11/+0
| | | | | The environment variable was removed by d2db60d8d830ef68c8d20a77ac3572d610aa40b1.
* Linux: Remove exit system call from _exitFlorian Weimer2022-08-041-1/+0
| | | | | | exit only terminates the current thread, not the whole process, so it is the wrong fallback system call in this context. All supported Linux versions implement the exit_group system call anyway.
* LoongArch: Add vdso support for gettimeofday.caiyinyu2022-08-042-0/+23
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* Update kernel version to 5.19 in header constant testsJoseph Myers2022-08-033-4/+4
| | | | | | | | | | This patch updates the kernel version in the tests tst-mman-consts.py, tst-mount-consts.py and tst-pidfd-consts.py to 5.18. (There are no new constants covered by these tests in 5.19, or in 5.17 or 5.18 in the case of tst-mount-consts.py that previously used version 5.16, that need any other header changes.) Tested with build-many-glibcs.py.
* nptl: Remove uses of assert_perrorFlorian Weimer2022-08-031-8/+3
| | | | | | | | __pthread_sigmask cannot actually fail with valid pointer arguments (it would need a really broken seccomp filter), and we do not check for errors elsewhere. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* stdio: Clean up __libc_message after unconditional abortFlorian Weimer2022-08-031-26/+21
| | | | | | | | | | | | Since commit ec2c1fcefb200c6cb7e09553f3c6af8815013d83 ("malloc: Abort on heap corruption, without a backtrace [BZ #21754]"), __libc_message always terminates the process. Since commit a289ea09ea843ced6e5277c2f2e63c357bc7f9a3 ("Do not print backtraces on fatal glibc errors"), the backtrace facility has been removed. Therefore, remove enum __libc_message_action and the action argument of __libc_message, and mark __libc_message as _No_return. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Update syscall lists for Linux 5.19Joseph Myers2022-08-023-2/+4
| | | | | | | | | Linux 5.19 has no new syscalls, but enables memfd_secret in the uapi headers for RISC-V. Update the version number in syscall-names.list to reflect that it is still current for 5.19 and regenerate the arch-syscall.h headers with build-many-glibcs.py update-syscalls. Tested with build-many-glibcs.py.
* socket: Check lengths before advancing pointer in CMSG_NXTHDRArjun Shankar2022-08-023-22/+94
| | | | | | | | | | | | | | | | | The inline and library functions that the CMSG_NXTHDR macro may expand to increment the pointer to the header before checking the stride of the increment against available space. Since C only allows incrementing pointers to one past the end of an array, the increment must be done after a length check. This commit fixes that and includes a regression test for CMSG_FIRSTHDR and CMSG_NXTHDR. The Linux, Hurd, and generic headers are all changed. Tested on Linux on armv7hl, i686, x86_64, aarch64, ppc64le, and s390x. [BZ #28846] Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
* tst-pidfd.c: UNSUPPORTED if we get EPERM on valid pidfd_getfd callMark Wielaard2022-07-291-0/+7
| | | | | | | | pidfd_getfd can fail for a valid pidfd with errno EPERM for various reasons in a restricted environment. Use FAIL_UNSUPPORTED in that case. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* LoongArch: Add greg_t and gregset_t.caiyinyu2022-07-291-0/+3
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* LoongArch: Fix VDSO_HASH and VDSO_NAME.caiyinyu2022-07-291-2/+2
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* riscv: Update rv64 libm test ulpsDarius Rad2022-07-271-1/+1
| | | | | | Generated on a Microsemi Polarfire Icicle Kit running Linux version 5.15.32. Same ULPs were also produced on QEMU 5.2.0 running Linux 5.18.0.
* riscv: Update nofpu libm test ulpsDarius Rad2022-07-271-31/+39
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generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-08-18 23:34:44 +0000