Files
clang-p2996/compiler-rt/test/asan/TestCases/global-overflow.cpp
Florian Mayer be366041fa [ASan] rename left/right to before/after.
left/right is a weird way to refer to address ordering.

Reviewed By: eugenis, MaskRay

Differential Revision: https://reviews.llvm.org/D132611
2022-09-06 13:25:15 -07:00

22 lines
774 B
C++

// RUN: %clangxx_asan -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
// RUN: %clangxx_asan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s
// RUN: %clangxx_asan -O2 %s -o %t && not %run %t 2>&1 | FileCheck %s
// RUN: %clangxx_asan -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 .*global-overflow.cpp:}}[[@LINE-2]]
// CHECK: {{0x.* is located 0 bytes after global variable}}
// CHECK: {{.*YYY.* of size 10}}
res += XXX[argc] + ZZZ[argc];
return res;
}