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glibc

The GNU C library.

Other Activity This Week

Linux: Use faccessat2 to implement faccessat (bug 18683)
Florian Weimer: This provides correct AT_EACCESS handling and also takes Linux security modules into account.

tst-cancel4: Make blocking on write more portable
Samuel Thibault: - nptl/tst-cancel4.

Recent Activity

Linux: Use faccessat2 to implement faccessat (bug 18683)
Florian Weimer: This provides correct AT_EACCESS handling and also takes Linux security modules into account.

tst-cancel4: Make blocking on write more portable
Samuel Thibault: - nptl/tst-cancel4.

hurd: Implement basic sched_get/setscheduler
Samuel Thibault: - sysdeps/mach/hurd/sched_gets.c: New file.

Prepare for glibc 2.32 release
Carlos O'Donell: Update version.

aarch64: update NEWS about branch protection
Szabolcs Nagy: After some discussions it seems the original news was not clear and that it is valid to manually pass the branch protection flags iff GCC target libs are built with them too.

Linux: Remove rseq support
Florian Weimer: The kernel ABI is not finalized, and there are now various proposals to change the size of struct rseq, which would make the glibc ABI dependent on the version of the kernels used for building glibc.

Remove --enable-obsolete-rpc configure flag
Petr Vorel: Sun RPC was removed from glibc.

string: Make tst-strerror/tst-strsignal unsupported if msgfmt is not installed
Adhemerval Zanella: Without msgfmt libc.mo files are not generated and its loading failure is silent ignored with xsetlocale. Also unset LANGUAGE environment variable to avoid it taking precedence when loading the message catalog.

elf: Support at least 32-byte alignment in static dlopen
Florian Weimer: Otherwise loading a dynamically linked libc with rseq support fails, as result of the __rseq_abi TLS variable, which has an alignment of 32 bytes.

Add NEWS entry for Update to Unicode 13.0.0 [BZ #25819]
Mike FABIAN: Unicode 13.0.0 Support: Character encoding, character type info, and transliteration tables are all updated to Unicode 13.0.0, using the generator scripts contributed by Mike FABIAN (Red Hat).

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

Remove --enable-obsolete-rpc configure flag
Petr Vorel: Sun RPC was removed from glibc.

Linux: Remove rseq support
Florian Weimer: The kernel ABI is not finalized, and there are now various proposals to change the size of struct rseq, which would make the glibc ABI dependent on the version of the kernels used for building glibc.

Open master branch for glibc 2.33 development
Carlos O'Donell: Happy hacking!

Prepare for glibc 2.32 release
Carlos O'Donell: Update version.

aarch64: update NEWS about branch protection
Szabolcs Nagy: After some discussions it seems the original news was not clear and that it is valid to manually pass the branch protection flags iff GCC target libs are built with them too.

Linux: Use faccessat2 to implement faccessat (bug 18683)
Florian Weimer: This provides correct AT_EACCESS handling and also takes Linux security modules into account.

tst-cancel4: Make blocking on write more portable
Samuel Thibault: - nptl/tst-cancel4.

string: Make tst-strerror/tst-strsignal unsupported if msgfmt is not installed
Adhemerval Zanella: Without msgfmt libc.mo files are not generated and its loading failure is silent ignored with xsetlocale. Also unset LANGUAGE environment variable to avoid it taking precedence when loading the message catalog.

hurd: Implement basic sched_get/setscheduler
Samuel Thibault: - sysdeps/mach/hurd/sched_gets.c: New file.

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