On Wed, Dec 5, 2012 at 5:34 PM, Peter Bergner <berg...@vnet.ibm.com> wrote: > Below are the port changes to enable building ASAN on powerpc*-linux. > The libsanitizer changes required for powerpc*-linux have already been > committed. This passes bootstrap and regtesting with no regressions > and we also pass the two ASAN test suite test cases. > > Ok for mainline? > > Peter > > > libsanitizer/ > * configure.tgt: Enable build on powerpc*-linux. > > gcc/ > * config/rs6000/rs6000.c (TARGET_ASAN_SHADOW_OFFSET): Define. > (rs6000_asan_shadow_offset): New function. > * config/rs6000/rs6000.h (FRAME_GROWS_DOWNWARD): Define to > flag_stack_protect != 0 || flag_asan != 0.
The definition of TARGET_ASAN_SHADOW_OFFSET and rs6000_asan_shadow_offset need to be limited to TARGET_ELF or ! TARGET_XCOFF (Does it work on PPC BSD or PPC Darwin?). That macro determines if GCC thinks -fsanitze=address is supported, which it is not on AIX. The macro probably should be defined in sysv4.h, not rs6000.c, and the function should not be defined appropriately. Thanks, David
