diff options
Diffstat (limited to 'test/asan/TestCases/alloca_big_alignment.cc')
-rw-r--r-- | test/asan/TestCases/alloca_big_alignment.cc | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/test/asan/TestCases/alloca_big_alignment.cc b/test/asan/TestCases/alloca_big_alignment.cc new file mode 100644 index 000000000000..2ede3f949b24 --- /dev/null +++ b/test/asan/TestCases/alloca_big_alignment.cc @@ -0,0 +1,18 @@ +// RUN: %clangxx_asan -O0 -mllvm -asan-instrument-allocas %s -o %t +// RUN: not %run %t 2>&1 | FileCheck %s +// + +#include <assert.h> + +__attribute__((noinline)) void foo(int index, int len) { + volatile char str[len] __attribute__((aligned(128))); + assert(!(reinterpret_cast<long>(str) & 127L)); + str[index] = '1'; // BOOM +// CHECK: ERROR: AddressSanitizer: dynamic-stack-buffer-overflow on address [[ADDR:0x[0-9a-f]+]] +// CHECK: WRITE of size 1 at [[ADDR]] thread T0 +} + +int main(int argc, char **argv) { + foo(10, 10); + return 0; +} |