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glibc

The GNU C library.

Yesterday's Activity

x86-64: Optimize strcat/strncat, strcpy/strncpy and stpcpy/stpncpy with AVX2
Leonardo Sandoval: Optimize x86-64 strcat/strncat, strcpy/strncpy and stpcpy/stpncpy with AVX2.

Other Activity This Week

[AArch64] Add ifunc support for Ares
Wilco Dijkstra: Add Ares to the midr_el0 list and support ifunc dispatch.

Recent Activity

x86-64: Optimize strcat/strncat, strcpy/strncpy and stpcpy/stpncpy with AVX2
Leonardo Sandoval: Optimize x86-64 strcat/strncat, strcpy/strncpy and stpcpy/stpncpy with AVX2.

[AArch64] Add ifunc support for Ares
Wilco Dijkstra: Add Ares to the midr_el0 list and support ifunc dispatch.

Use C99-compliant scanf under _GNU_SOURCE with modern compilers
Zack Weinberg: The only difference between noncompliant and C99-compliant scanf is that the former accepts the archaic GNU extension '%as' (also %aS and %a[...]) meaning to allocate space for the input string with malloc.

Update Linux kernel version in tst-mman-consts.py
Joseph Myers: This patch updates the Linux kernel version in tst-mman-consts.py to 4.20 (meaning that's the version for which glibc is expected to have the same constants as the kernel, up to the exceptions listed in the test).

Add IPV6_MULTICAST_ALL from Linux 4.20 to bits/in.h
Joseph Myers: This patch adds the IPV6_MULTICAST_ALL constant from Linux 4.20 to bits/in.h.

Add PACKET_IGNORE_OUTGOING from Linux 4.20 to netpacket/packet.h
Joseph Myers: This patch adds the PACKET_IGNORE_OUTGOING constant from Linux 4.20 to netpacket/packet.h.

Add HWCAP_SSBS from Linux 4.20 to AArch64 bits/hwcap.h
Joseph Myers: This patch adds the HWCAP_SSBS constant from Linux 4.20 to the AArch64 bits/hwcap.h.

Multiple locales: Use the correct 12-hour time formats (bug 10496).
Rafal Luzynski: It has been discovered that some locales use the 12-hour time formats but do not use any AM/PM indicator thus making the time ambiguous.

Update nios2, sparc32 localplt.data for difftime changes (bug 24023).
Joseph Myers: The recent difftime changes introduced localplt test failures on nios2 and sparc32, two configurations where some soft-fp functions are defined in / exported from libc.so, and where the difftime changes affected the particular set of floating-point operations used in libc.so.

Update longlong.h
Joseph Myers: This patch updates longlong.h from GCC.

glibc Release Tags

Open master branch for glibc 2.29 development
Carlos O'Donell

Update for 2.25 release
Siddhesh Poyarekar

Update version.h and include/features.h for 2.22 release
Carlos O'Donell

Restore _POSIX2_C_VERSION definition (bug 438).
Joseph Myers: My review of conformtest expectations for POSIX showed up that the _POSIX2_C_VERSION macro, required by POSIX and XPG standards before 2001, was missing in unistd.h, having been removed on 2003-04-03 despite those standards still being supported.

Bump required version of texinfo to 4.7
Will Newton: It seems we require texinfo 4.7 for the --plaintext option, so document that and check for the correct version in configure. ChangeLog: 2014-12-15 Will Newton - manual/install.texi: Bump required version of texinfo to 4.7 from 4.5. - INSTALL: Regenerated. - configure.ac: Check for makeinfo version 4.7 and above. - configure: Regenerated.

Rework compiler version check in configure
Roland McGrath

Update version.h and include/features.h for 2.19 release
Allan McRae

Accept make versions 4.0 and greater
Marc-Antoine Perennou

Update version.h and include/features.h for 2.18 release
David S. Miller

Make _LIB_VERSION a weak symbol
Siddhesh Poyarekar: That way it can live alongside _LIB_VERSION in libieee.a for statically compiled programs.

Most Popular In The Past Month

S390: Add z13 memmem ifunc variant
Stefan Liebler: The new vector variant of memmem is using the common code implementation, but instead of calling the default mem* functions, the vector variants are called.

S390: Add z13 memmove ifunc variant
Stefan Liebler: This patch introduces a z13 specific ifunc variant for memmove.

S390: Add z13 strstr ifunc variant
Stefan Liebler: The new vector variant of strstr is using the common code implementation, but instead of calling the default str* / mem* functions, the vector variants are called.

S390: Remove s390 specific implementation of bcopy
Stefan Liebler: Nowadays gcc is automatically replacing a call to bcopy with a call to memmove.

Y2038: add function __ctime64
Albert ARIBAUD (3ADEV): Tested with 'make check' on x86_64-linux-gnu and i686-linux.gnu. - include/time.h (__ctime64): Add. - time/gmtime.c (__ctime64): Add.

Remove x86 mathinline.h
Joseph Myers: After previous cleanups, the only code in the x86 bits/mathinline.h that is relevant with current compilers is the inline of __ieee754_atan2l that is conditional on __LIBC_INTERNAL_MATH_INLINES (i.e.

Y2038: add function __localtime64
Albert ARIBAUD (3ADEV): Tested with 'make check' on x86_64-linux-gnu and i686-linux.gnu. - include/time.h (__localtime64): Add. - manual/maint.texi: Document Y2038 symbol handling. - time/localtime.c (__localtime64): Add.

[AArch64] Add ifunc support for Ares
Wilco Dijkstra: Add Ares to the midr_el0 list and support ifunc dispatch.

Y2038: make __difftime compatible with 64-bit time
Albert ARIBAUD (3ADEV): Provide a 64-bit-time version of __difftime (but do not assume __time64_t is a signed int so that Gnulib can reuse the code) and make the 32-bit version a wrapper of it. Current difftime expects two time_t arguments and returns a double.

Y2038: add function __gmtime64
Albert ARIBAUD (3ADEV): Tested with 'make check' on x86_64-linux-gnu and i686-linux.gnu. - include/time.h (__gmtime64): Add. - time/gmtime.c (__gmtime64): Add.

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