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glibc 2.11

I've tagged the tree for glibc 2.11. As usual the code has been tested extensively in Fedora. The changes include:

* New interfaces: execvpe, pthread_sigqueue, mkstemps, mkstemps64, mkostemps,
Implemented by Ulrich Drepper.

* Checking version of longjmp added that fails if an uninitialized stack
  frame would be created.  Implemented by Ulrich Drepper.

* STT_GNU_IFUNC is now supported in static executables.
  Implemented by H.J. Lu.

* STT_GNU_IFUNC implemented for PPC by Alan Modra.

* New optimized string functions for x86-64: strstr, strcasestr, memcmp,
  strcspn, strpbrk, strspn, strcpy, stpcpy, strncpy, strcmp (SSE2, SSE4.2),
  strncmp (SSE2, SSE4.2), strchr (SSE4.2), strrchr (SSE4.2).
  Contributed by H.J. Lu.

  strlen, rawmemchr, strcmp (SSSE3), strncmp (SSSE3).
  Implemented by Ulrich Drepper.

* New optimized string functions for x86: strlen, strcspn, strspn, strpbrk,
  strstr, strcasestr.
  Contributed by H.J. Lu.

* Support for fma instruction in AVX on x86-64.
  Implemented by H.J. Lu and Ulrich Drepper.

* AVX support in x86-64 auditing support in
  Implemented by H.J. Lu.

* STB_GNU_UNIQUE support added.
  Implemented by Ulrich Drepper.

* Implement second fallback mode for optimized DNS lookup for even more
broken environments. If two requests from the same port are not
handled correctly close the socket and open a new one before sending
the second request. The 'single-request-reopen' option in /etc/resolv.conf
can be used to select this mode right away, instead of rediscovering the
necessity is every process again.
Implemented by Ulrich Drepper.

* New resolver flag RES_USE_DNSSEC to enable use of verified lookup.
  Implemented by Adam Tkac.

* Optimized iconv conversions for S390x.
  Implemented by Andreas Krebbel.

* Using condvars with PI mutexes is now more efficient due to kernel
  support for requeueing to PI futexes.  NPTL support added for x86-64.
  Implemented by Ulrich Drepper.

* New locales: ps_AF, my_MM

As you can see, lots of optimizations went in. Unmentioned are all the bug fixes which also occurred, many with the help of reporters who sent along patches.

I'll tagged the master branch for 2.12 in the week on 11/9.

The next release will be in approximately 6 months, as usual.

â Ulrich Drepper â Red Hat, Inc. â 444 Castro St â Mountain View, CA â

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