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| author | ygribov <ygribov@138bc75d-0d04-0410-961f-82ee72b054a4> | 2014-10-28 09:46:29 +0000 |
|---|---|---|
| committer | ygribov <ygribov@138bc75d-0d04-0410-961f-82ee72b054a4> | 2014-10-28 09:46:29 +0000 |
| commit | cf357977a8d0eadddf7f2f248553519dc622ffb8 (patch) | |
| tree | 504a2ebd7e810c8a58584e3f9ab605bd37f3a29f /gcc/asan.h | |
| parent | 5e1a5abaa5856a1f6cfe651b7f4a2abd3b32dff1 (diff) | |
| download | gcc-cf357977a8d0eadddf7f2f248553519dc622ffb8.tar.gz | |
Allow to override Asan shadow offset.
2014-10-28 Yury Gribov <y.gribov@samsung.com>
gcc/
* asan.c (set_asan_shadow_offset): New function.
(asan_shadow_offset): Likewise.
(asan_emit_stack_protection): Call asan_shadow_offset.
(build_shadow_mem_access): Likewise.
* asan.h (set_asan_shadow_offset): Declare.
* common.opt (fasan-shadow-offset): New option.
(frandom-seed): Fixed parameter name.
* doc/invoke.texi (fasan-shadow-offset): Describe new option.
(frandom-seed): Fixed parameter name.
* opts-global.c (handle_common_deferred_options): Handle
-fasan-shadow-offset.
* opts.c (common_handle_option): Likewise.
gcc/testsuite/
* c-c++-common/asan/shadow-offset-1.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@216773 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/asan.h')
| -rw-r--r-- | gcc/asan.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc/asan.h b/gcc/asan.h index 198433f3992..eadf0290d1c 100644 --- a/gcc/asan.h +++ b/gcc/asan.h @@ -36,7 +36,7 @@ extern gimple_stmt_iterator create_cond_insert_point extern alias_set_type asan_shadow_set; /* Shadow memory is found at - (address >> ASAN_SHADOW_SHIFT) + targetm.asan_shadow_offset (). */ + (address >> ASAN_SHADOW_SHIFT) + asan_shadow_offset (). */ #define ASAN_SHADOW_SHIFT 3 /* Red zone size, stack and global variables are padded by ASAN_RED_ZONE_SIZE @@ -76,4 +76,6 @@ asan_red_zone_size (unsigned int size) return c ? 2 * ASAN_RED_ZONE_SIZE - c : ASAN_RED_ZONE_SIZE; } +extern bool set_asan_shadow_offset (const char *); + #endif /* TREE_ASAN */ |