[Bug sanitizer/64820] Libsanitizer fails with ((AddrIsAlignedByGranularity(addr + size))) != (0)" (0x0, 0x0) if ssp is enabled.

[chefmax at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64820

--- Comment #9 from Maxim Ostapenko <chefmax at gcc dot gnu.org> ---
Author: chefmax
Date: Tue Dec  8 11:34:28 2015
New Revision: 231405

URL: https://gcc.gnu.org/viewcvs?rev=231405&root=gcc&view=rev
Log:
2015-12-08  Maxim Ostapenko  <m.ostape...@partner.samsung.com>

        Backport from mainline.
        2015-03-16  Max Ostapenko  <m.ostape...@partner.samsung.com>

        PR sanitizer/64820

        gcc/
        * cfgexpand.c (align_base): New function.
        (alloc_stack_frame_space): Call it.
        (expand_stack_vars): Align prev_frame to be sure
        data->asan_vec elements aligned properly.

        gcc/testsuite/
        * c-c++-common/asan/pr64820.c: New test.

Added:
    branches/gcc-4_9-branch/gcc/testsuite/c-c++-common/asan/pr64820.c
Modified:
    branches/gcc-4_9-branch/gcc/ChangeLog
    branches/gcc-4_9-branch/gcc/cfgexpand.c
    branches/gcc-4_9-branch/gcc/testsuite/ChangeLog