| 1 | // Check that ASan dumps the CPU registers on a SIGSEGV. |
| 2 | |
| 3 | // RUN: %clangxx_asan %s -o %t |
| 4 | // RUN: not %run %t 2>&1 | FileCheck %s |
| 5 | |
| 6 | #include <assert.h> |
| 7 | #include <stdio.h> |
| 8 | #include <sys/mman.h> |
| 9 | |
| 10 | int main() { |
| 11 | fprintf(stderr, format: "Hello\n" ); |
| 12 | char *ptr; |
| 13 | |
| 14 | ptr = (char *)mmap(NULL, len: 0x10000, PROT_NONE, MAP_ANON | MAP_PRIVATE, fd: -1, offset: 0); |
| 15 | assert(ptr && "failed to mmap" ); |
| 16 | |
| 17 | fprintf(stderr, format: sizeof(uintptr_t) == 8 ? "p = 0x%016lx\n" : "p = 0x%08lx\n" , (uintptr_t)ptr); |
| 18 | // CHECK: p = [[ADDR:0x[0-9]+]] |
| 19 | |
| 20 | char c = *ptr; // BOOM |
| 21 | // CHECK: ERROR: AddressSanitizer: {{SEGV|BUS}} |
| 22 | // CHECK: Register values: |
| 23 | // CHECK: [[ADDR]] |
| 24 | fprintf(stderr, format: "World\n" ); |
| 25 | return c; |
| 26 | } |
| 27 | |