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| author | Kito Cheng <kito.cheng@sifive.com> | 2019-08-19 03:21:44 +0000 |
|---|---|---|
| committer | Kito Cheng <kito.cheng@sifive.com> | 2019-08-19 03:21:44 +0000 |
| commit | 100facd3b5061645692f5db1cc846bb878dc133d (patch) | |
| tree | af44f80923754951c1b569f8d66cda8eaf956d12 /gcc/toplev.c | |
| parent | 351d6a13b28ff02967e9f11905886059b4e02209 (diff) | |
PR target/91441 - Turn off -fsanitize=kernel-address if TARGET_ASAN_SHADOW_OFFSET is not implemented.
- -fsanitize=kernel-address will call targetm.asan_shadow_offset ()
at asan_shadow_offset, so it will crash if TARGET_ASAN_SHADOW_OFFSET
is not implemented, that's mean -fsanitize=kernel-address is not
supported for target without TARGET_ASAN_SHADOW_OFFSET implementation.
gcc/ChangeLog:
PR target/91441
* toplev.c (process_options): Check TARGET_ASAN_SHADOW_OFFSET is
implemented for -fsanitize=kernel-address, and merge check logic
with -fsanitize=address.
testsuite/ChangeLog:
PR target/91441
* gcc.target/riscv/pr91441.c: New.
git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@274631 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/toplev.c')
| -rw-r--r-- | gcc/toplev.c | 10 |
1 files changed, 1 insertions, 9 deletions
diff --git a/gcc/toplev.c b/gcc/toplev.c index 7e0b9216dea..ddbb8b49436 100644 --- a/gcc/toplev.c +++ b/gcc/toplev.c @@ -1744,7 +1744,7 @@ process_options (void) /* Address Sanitizer needs porting to each target architecture. */ if ((flag_sanitize & SANITIZE_ADDRESS) - && !FRAME_GROWS_DOWNWARD) + && (!FRAME_GROWS_DOWNWARD || targetm.asan_shadow_offset == NULL)) { warning_at (UNKNOWN_LOCATION, 0, "%<-fsanitize=address%> and %<-fsanitize=kernel-address%> " @@ -1752,14 +1752,6 @@ process_options (void) flag_sanitize &= ~SANITIZE_ADDRESS; } - if ((flag_sanitize & SANITIZE_USER_ADDRESS) - && targetm.asan_shadow_offset == NULL) - { - warning_at (UNKNOWN_LOCATION, 0, - "%<-fsanitize=address%> not supported for this target"); - flag_sanitize &= ~SANITIZE_ADDRESS; - } - /* Do not use IPA optimizations for register allocation if profiler is active or patchable function entries are inserted for run-time instrumentation or port does not emit prologue and epilogue as RTL. */ |