[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 #2 from Maxim Ostapenko <chefmax at gcc dot gnu.org> ---
Author: chefmax
Date: Mon Mar 16 11:17:32 2015
New Revision: 221457

URL: https://gcc.gnu.org/viewcvs?rev=221457&root=gcc&view=rev
Log:
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:
    trunk/gcc/testsuite/c-c++-common/asan/pr64820.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/cfgexpand.c
    trunk/gcc/testsuite/ChangeLog