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| author | Maxim Ostapenko <m.ostapenko@samsung.com> | 2017-07-06 16:05:00 +0000 |
|---|---|---|
| committer | Maxim Ostapenko <chefmax@gcc.gnu.org> | 2017-07-06 19:05:00 +0300 |
| commit | 5094f7d540ff2f8ccbb3b78a0962a07ffa5960cb (patch) | |
| tree | abe11990d7fbf767d605ed325548aeca19664586 /gcc/cfgexpand.c | |
| parent | e3174bdf35c172f69daf08350401aa177f8f1498 (diff) | |
| download | gcc-5094f7d540ff2f8ccbb3b78a0962a07ffa5960cb.zip gcc-5094f7d540ff2f8ccbb3b78a0962a07ffa5960cb.tar.gz gcc-5094f7d540ff2f8ccbb3b78a0962a07ffa5960cb.tar.bz2 | |
asan.h (asan_sanitize_allocas_p): Declare.
gcc/
* asan.h (asan_sanitize_allocas_p): Declare.
* asan.c (asan_sanitize_allocas_p): New function.
(handle_builtin_stack_restore): Bail out if !asan_sanitize_allocas_p.
(handle_builtin_alloca): Likewise.
* cfgexpand.c (expand_used_vars): Do not add allocas unpoisoning stuff
if !asan_sanitize_allocas_p.
* params.def (asan-instrument-allocas): Add new option.
* params.h (ASAN_PROTECT_ALLOCAS): Define.
* opts.c (common_handle_option): Disable allocas sanitization for
KASan by default.
gcc/testsuite/
* c-c++-common/asan/kasan-alloca-1.c: New test.
* c-c++-common/asan/kasan-alloca-2.c: Likewise.
From-SVN: r250032
Diffstat (limited to 'gcc/cfgexpand.c')
| -rw-r--r-- | gcc/cfgexpand.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/cfgexpand.c b/gcc/cfgexpand.c index dd7277f..c427a89 100644 --- a/gcc/cfgexpand.c +++ b/gcc/cfgexpand.c @@ -2241,7 +2241,7 @@ expand_used_vars (void) expand_stack_vars (NULL, &data); } - if ((flag_sanitize & SANITIZE_ADDRESS) && cfun->calls_alloca) + if (asan_sanitize_allocas_p () && cfun->calls_alloca) var_end_seq = asan_emit_allocas_unpoison (virtual_stack_dynamic_rtx, virtual_stack_vars_rtx, var_end_seq); |