| // Test with "-O2" only to make sure inlining (leading to use-after-scope) |
| // happens. "always_inline" is not enough, as Clang doesn't emit |
| // llvm.lifetime intrinsics at -O0. |
| // |
| // RUN: %clangxx_asan -m64 -O2 -fsanitize=use-after-scope %s -o %t && \ |
| // RUN: %t 2>&1 | %symbolize | FileCheck %s |
| // RUN: %clangxx_asan -m32 -O2 -fsanitize=use-after-scope %s -o %t && \ |
| // RUN: %t 2>&1 | %symbolize | FileCheck %s |
| |
| int *arr; |
| |
| __attribute__((always_inline)) |
| void inlined(int arg) { |
| int x[5]; |
| for (int i = 0; i < arg; i++) x[i] = i; |
| arr = x; |
| } |
| |
| int main(int argc, char *argv[]) { |
| inlined(argc); |
| return arr[argc - 1]; // BOOM |
| // CHECK: ERROR: AddressSanitizer: stack-use-after-scope |
| // CHECK: READ of size 4 at 0x{{.*}} thread T0 |
| // CHECK: #0 0x{{.*}} in {{_?}}main |
| // CHECK: {{.*}}use-after-scope-inlined.cc:[[@LINE-4]] |
| // CHECK: Address 0x{{.*}} is located in stack of thread T0 at offset |
| // CHECK: [[OFFSET:[^ ]*]] in frame |
| // CHECK: main |
| // CHECK: {{\[}}[[OFFSET]], {{.*}}) 'x.i' |
| } |