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[Bug ports/14279] New: [2.15 backport] catch up on bugs fixed since 2.15 release


http://sourceware.org/bugzilla/show_bug.cgi?id=14279

             Bug #: 14279
           Summary: [2.15 backport] catch up on bugs fixed since 2.15
                    release
           Product: glibc
           Version: 2.15
            Status: NEW
          Keywords: glibc_2.15
          Severity: normal
          Priority: P2
         Component: ports
        AssignedTo: unassigned@sourceware.org
        ReportedBy: cmetcalf@tilera.com
                CC: carlos@systemhalted.org, roland@gnu.org
    Classification: Unclassified


Since tile has not yet been supported in an official release, this bug is just
a placeholder for bug fixes that have been made in master during the runup to
the 2.16 release.  The seven correctness bugs that have been fixed should be
backported to 2.15.  (Cleanup, performance bugs, and purely test-support
changes don't, I think, rise to the level of being necessary to backport.)

commit 3c19868059809171740f3f71ec0e950582b3b23b
Author: Chris Metcalf <cmetcalf@tilera.com>
Date:   Fri May 11 15:57:05 2012 -0400

    linux-generic: add wordsize-32 version of prlimit64/fanotify syscalls

commit 575298fcd298bb3ff7d7ba0d0bceac9429ae2b5d
Author: Chris Metcalf <cmetcalf@tilera.com>
Date:   Fri May 11 17:59:23 2012 -0400

    tile: allow memcpy(p, p, n) without corrupting memory at "p"

    Although this is not required by the definition of memcpy(),
    in practice this sort of thing does happen, and it's easy to make
    the code robust by doing nothing in this case.  (Since structure
    copy causes the compiler to emit a memcpy, in the case where the
    target structure is the same as the destination, we were seeing
    corruption.)

commit 024bb7b4a22e62faf932a7b9f071322716727d2d
Author: Chris Metcalf <cmetcalf@tilera.com>
Date:   Fri May 11 18:08:03 2012 -0400

    tile: fix bug in CFI definitions for clone.S

    We were missing a critical cfi_def_cfa_offset call in .Lthread_start
    which caused backtracing to get badly confused for threads.

commit 8927be2b217ad44682efd987e32320ee80c4dbe1
Author: Chris Metcalf <cmetcalf@tilera.com>
Date:   Fri May 11 18:10:00 2012 -0400

    tile: add include <features.h> to <sys/dataplane.h>

    We were using __BEGIN_DECLS without <features.h> and it just happened
    to mostly work, but of course we should include it here.

commit bcfe09d24161bdf3b734da2f2fc4692bd26b7f52
Author: Chris Metcalf <cmetcalf@tilera.com>
Date:   Mon May 14 15:03:46 2012 -0400

    tile: align stack for tilegx32

    Previously we weren't re-aligning the stack pointer during the
    call to _dl_init(), so for tilegx32 and an odd value in _dl_skip_args
    and kernel unaligned access fixups disabled, we would die with SIGBUS.
    We now handle this case properly by aligning before calling _dl_init().

commit 0adc5f3892fee6fc6221691e3f269fcc3b386965
Author: Chris Metcalf <cmetcalf@tilera.com>
Date:   Wed May 16 13:52:36 2012 -0400

    tilegx32: fix various bugs in setcontext/getcontext/swapcontext

commit 30aa747c6895cfb6ae7c9655375c1d0c87acdc41
Author: Chris Metcalf <cmetcalf@tilera.com>
Date:   Thu May 17 15:18:45 2012 -0400

    tile: add proper versioning for fegetenv()

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