Re: [asan] Target hook for shadow memory offset

[Diego Novillo]

On 2012-10-11 10:32 , Jakub Jelinek wrote:

2012-10-11  Jakub Jelinek  <ja...@redhat.com>

        * toplev.c (process_options): Warn and turn off -fasan
        if not supported by target.
        * asan.c: Include target.h.
        (asan_scale, asan_offset_log_32, asan_offset_log_64,
        asan_offset_log): Removed.
        (build_check_stmt): Use ASAN_SHADOW_SHIFT and
        targetm.asan_shadow_offset ().
        (asan_instrument): Don't initialize asan_offset_log.
        * asan.h (ASAN_SHADOW_SHIFT): Define.
        * target.def (TARGET_ASAN_SHADOW_OFFSET): New hook.
        * doc/tm.texi.in (TARGET_ASAN_SHADOW_OFFSET): Add it.
        * doc/tm.texi: Regenerated.
        * Makefile.in (asan.o): Depend on $(TARGET_H).
        * config/i386/i386.c (ix86_asan_shadow_offset): New function.
        (TARGET_ASAN_SHADOW_OFFSET): Define.

OK with HJ's suggestion for 64 bit pointer support.


Diego.