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glibc
The GNU C library.
Other Activity This Week
- x86: Initialize CPU info via IFUNC relocation [BZ 26203]
H.J. Lu: X86 CPU features in ld.so are initialized by init_cpu_features, which is invoked by DL_PLATFORM_INIT from _dl_sysdep_start. - linux: Add 64-bit time_t support for wait3
Adhemerval Zanella: It basically calls the 64-bit time_t wait4 internal symbol. - linux: Fix time64 support for futimesat
Adhemerval Zanella: The generic implementation does not support time64 and the default one return overflow for invalid tv_sec with UTIME_NOW / UTIME_OMIT (which is valid since tv_sec in such cases is ignored by the kernel).
Recent Activity
- x86: Initialize CPU info via IFUNC relocation [BZ 26203]
H.J. Lu: X86 CPU features in ld.so are initialized by init_cpu_features, which is invoked by DL_PLATFORM_INIT from _dl_sysdep_start. - linux: Add 64-bit time_t support for wait3
Adhemerval Zanella: It basically calls the 64-bit time_t wait4 internal symbol. - linux: Fix time64 support for futimesat
Adhemerval Zanella: The generic implementation does not support time64 and the default one return overflow for invalid tv_sec with UTIME_NOW / UTIME_OMIT (which is valid since tv_sec in such cases is ignored by the kernel). - linux: Add {f}stat{at} y2038 support
Adhemerval Zanella: A new struct __stat{64}_t64 type is added with the required __timespec64 time definition. - linux: Disentangle fstatat from fxstatat
Adhemerval Zanella: It implements all the required syscall for the all Linux kABIS on fstatat{64} instead of calling fxstatat{64}. On non-LFS implementation, it handles 3 cases: 1. - linux: Implement {l}fstat{at} in terms of fstatat
Adhemerval Zanella: Both fstatat and fstata64 calls the old fxstatat and fxstatat64 repectivelly with _STAT_VER, the one currently exported as default for all ABIs. Checked with a build for all affected ABIs. - elf: Implement ld.so --version
Florian Weimer: This prints out version information for the dynamic loader and exits immediately, without further command line processing (which seems to match what some GNU tools do). - elf: Implement ld.so --help
Florian Weimer: --help processing is deferred to the point where the executable has been loaded, so that it is possible to eventually include information from the main executable in the help output. - y2038: nptl: Convert pthread_rwlock_{clock|timed}{rd|wr}lock to support 64 bit time
Lukasz Majewski: The pthread_rwlock_clockrdlock, pthread_rwlock_clockwrlock, pthread_rwlock_timedrdlock and pthread_rwlock_timedwrlock have been converted to support 64 bit time. This change uses new futex_abstimed_wait64 function in ./sysdeps/nptl/futex-helpers.c, which uses futex_time64 where possible. The pthread_rwlock_{clock|timed}{rd|wr}lock only accepts absolute time. - aarch64: enforce >=64K guard size [BZ #26691]
Szabolcs Nagy: There are several compiler implementations that allow large stack allocations to jump over the guard page at the end of the stack and corrupt memory beyond that.
glibc Release Tags
- Open master branch for glibc 2.33 development
Carlos O'Donell: Happy hacking! - Generate ChangeLog.old/ChangeLog.20 for 2.31
Siddhesh Poyarekar: We're ready to tag! - Open master for 2.32 development
Siddhesh Poyarekar: happy hacking! - [MIPS] Raise highest supported EI_ABIVERSION value [BZ #24916]
Mihailo Stojanovic: 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] - Open master for 2.31 development
Carlos O'Donell - Tag 2.30 release
Carlos O'Donell - Update install and NEWS for 2.30 release
Carlos O'Donell - Replace PREPARE_VERSION macro with inline function
Tobias Klauser: - sysdeps/unix/sysv/linux/dl-vdso.h (PREPARE_VERSION): Remove macro. - Add missing VDSO_{NAME,HASH}_* macros and use them for PREPARE_VERSION_KNOWN
Tobias Klauser: Define all currently used Linux versions used for PREPARE_VERSION{,_KNOWN} in sysdeps/unix/sysv/linux/dl-vdso.h and use them instead of duplicating the versions and precomputed hashes across architecture specific files. - sysdeps/unix/sysv/linux/aarch64/gettimeofday.c (INIT_ARCH): Use PREPARE_VERSION_KNOWN. - sysdeps/unix/sysv/linux/aarch64/init-first.c: Likewise. - sysdeps/unix/sysv/linux/dl-vdso.h (VDSO_NAME_LINUX_2_6_39): New define. - Open master for 2.30 development
Siddhesh Poyarekar
Most Popular In The Past Month
- linux: Add {f}stat{at} y2038 support
Adhemerval Zanella: A new struct __stat{64}_t64 type is added with the required __timespec64 time definition. - linux: Implement {l}fstat{at} in terms of fstatat
Adhemerval Zanella: Both fstatat and fstata64 calls the old fxstatat and fxstatat64 repectivelly with _STAT_VER, the one currently exported as default for all ABIs. Checked with a build for all affected ABIs. - nptl: Provide proper spelling for 32 bit version of futex_abstimed_wait
Lukasz Majewski - y2038: nptl: Convert pthread_rwlock_{clock|timed}{rd|wr}lock to support 64 bit time
Lukasz Majewski: The pthread_rwlock_clockrdlock, pthread_rwlock_clockwrlock, pthread_rwlock_timedrdlock and pthread_rwlock_timedwrlock have been converted to support 64 bit time. This change uses new futex_abstimed_wait64 function in ./sysdeps/nptl/futex-helpers.c, which uses futex_time64 where possible. The pthread_rwlock_{clock|timed}{rd|wr}lock only accepts absolute time. - elf: Implement ld.so --version
Florian Weimer: This prints out version information for the dynamic loader and exits immediately, without further command line processing (which seems to match what some GNU tools do). - elf: Implement ld.so --help
Florian Weimer: --help processing is deferred to the point where the executable has been loaded, so that it is possible to eventually include information from the main executable in the help output. - linux: Disentangle fstatat from fxstatat
Adhemerval Zanella: It implements all the required syscall for the all Linux kABIS on fstatat{64} instead of calling fxstatat{64}. On non-LFS implementation, it handles 3 cases: 1. - linux: Add 64-bit time_t support for wait3
Adhemerval Zanella: It basically calls the 64-bit time_t wait4 internal symbol. - linux: Fix time64 support for futimesat
Adhemerval Zanella: The generic implementation does not support time64 and the default one return overflow for invalid tv_sec with UTIME_NOW / UTIME_OMIT (which is valid since tv_sec in such cases is ignored by the kernel). - x86: Initialize CPU info via IFUNC relocation [BZ 26203]
H.J. Lu: X86 CPU features in ld.so are initialized by init_cpu_features, which is invoked by DL_PLATFORM_INIT from _dl_sysdep_start.