27 lines · cpp
1// Check that ASan dumps the CPU registers on a SIGSEGV.2 3// RUN: %clangxx_asan %s -o %t4// RUN: not %run %t 2>&1 | FileCheck %s5 6#include <assert.h>7#include <stdio.h>8#include <sys/mman.h>9 10int main() {11 fprintf(stderr, "Hello\n");12 char *ptr;13 14 ptr = (char *)mmap(NULL, 0x10000, PROT_NONE, MAP_ANON | MAP_PRIVATE, -1, 0);15 assert(ptr && "failed to mmap");16 17 fprintf(stderr, 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; // BOOM21 // CHECK: ERROR: AddressSanitizer: {{SEGV|BUS}}22 // CHECK: Register values:23 // CHECK: [[ADDR]]24 fprintf(stderr, "World\n");25 return c;26}27