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 | |