diff options
| author | Reid Kleckner <rnk@google.com> | 2018-04-26 20:46:50 +0000 |
|---|---|---|
| committer | Reid Kleckner <rnk@google.com> | 2018-04-26 20:46:50 +0000 |
| commit | 180743bbb38fc7ad7fdc0026716dffa64c19fb63 (patch) | |
| tree | 7d50ddb400708950fff4fad42e1677e8552e35fe /test/asan | |
| parent | e47560819c50ca19422b837e8fa076ca32096ef5 (diff) | |
[asan] Align __asan_global_start so that it works with LLD
Otherwise LLD will not align the .ASAN$GA section start, and
&__asan_globals + 1 will not be the start of the next real ASan global
metadata in .ASAN$GL.
We discovered this issue when attempting to use LLD on Windows in
Chromium: https://crbug.com/837090
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@330990 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/asan')
| -rw-r--r-- | test/asan/TestCases/Windows/fuse-lld-globals.cc | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/test/asan/TestCases/Windows/fuse-lld-globals.cc b/test/asan/TestCases/Windows/fuse-lld-globals.cc new file mode 100644 index 000000000..4148d562f --- /dev/null +++ b/test/asan/TestCases/Windows/fuse-lld-globals.cc @@ -0,0 +1,18 @@ +// RUN: %clangxx_asan -fuse-ld=lld -O3 %s -o %t && not %run %t 2>&1 | FileCheck %s + +#include <string.h> +int main(int argc, char **argv) { + static char XXX[10]; + static char YYY[10]; + static char ZZZ[10]; + memset(XXX, 0, 10); + memset(YYY, 0, 10); + memset(ZZZ, 0, 10); + int res = YYY[argc * 10]; // BOOOM + // CHECK: {{READ of size 1 at 0x.* thread T0}} + // CHECK: {{ #0 0x.* in main .*fuse-lld-globals.cc:}}[[@LINE-2]] + // CHECK: {{0x.* is located 0 bytes to the right of global variable}} + // CHECK: {{.*YYY.* of size 10}} + res += XXX[argc] + ZZZ[argc]; + return res; +} |