forked from OSchip/llvm-project
75 lines
1.9 KiB
C++
75 lines
1.9 KiB
C++
// Check that the stack trace debugging API works and returns correct
|
|
// malloc and free stacks.
|
|
// RUN: %clangxx_asan -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
|
|
|
|
// FIXME: Figure out why allocation/free stack traces may be too short on ARM.
|
|
// REQUIRES: stable-runtime
|
|
|
|
#if _WIN64
|
|
#define PTR "%llx"
|
|
#else
|
|
#define PTR "%lx"
|
|
#endif
|
|
|
|
#include <sanitizer/asan_interface.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
char *mem;
|
|
void func1() {
|
|
mem = (char *)malloc(10);
|
|
}
|
|
|
|
void func2() {
|
|
free(mem);
|
|
}
|
|
|
|
int main() {
|
|
// Disable stderr buffering. Needed on Windows.
|
|
setvbuf(stderr, NULL, _IONBF, 0);
|
|
|
|
func1();
|
|
func2();
|
|
|
|
void *trace[100];
|
|
size_t num_frames = 100;
|
|
int thread_id;
|
|
num_frames = __asan_get_alloc_stack(mem, trace, num_frames, &thread_id);
|
|
|
|
fprintf(stderr, "alloc stack retval %s\n", (num_frames > 0 && num_frames < 10)
|
|
? "ok" : "");
|
|
// CHECK: alloc stack retval ok
|
|
fprintf(stderr, "thread id = %d\n", thread_id);
|
|
// CHECK: thread id = 0
|
|
fprintf(stderr, "0x" PTR "\n", trace[0]);
|
|
// CHECK: [[ALLOC_FRAME_0:0x[0-9a-f]+]]
|
|
fprintf(stderr, "0x" PTR "\n", trace[1]);
|
|
// CHECK: [[ALLOC_FRAME_1:0x[0-9a-f]+]]
|
|
|
|
num_frames = 100;
|
|
num_frames = __asan_get_free_stack(mem, trace, num_frames, &thread_id);
|
|
|
|
fprintf(stderr, "free stack retval %s\n", (num_frames > 0 && num_frames < 10)
|
|
? "ok" : "");
|
|
// CHECK: free stack retval ok
|
|
fprintf(stderr, "thread id = %d\n", thread_id);
|
|
// CHECK: thread id = 0
|
|
fprintf(stderr, "0x" PTR "\n", trace[0]);
|
|
// CHECK: [[FREE_FRAME_0:0x[0-9a-f]+]]
|
|
fprintf(stderr, "0x" PTR "\n", trace[1]);
|
|
// CHECK: [[FREE_FRAME_1:0x[0-9a-f]+]]
|
|
|
|
mem[0] = 'A'; // BOOM
|
|
|
|
// CHECK: ERROR: AddressSanitizer: heap-use-after-free
|
|
// CHECK: WRITE of size 1 at 0x{{.*}}
|
|
// CHECK: freed by thread T0 here:
|
|
// CHECK: #0 [[FREE_FRAME_0]]
|
|
// CHECK: #1 [[FREE_FRAME_1]]
|
|
// CHECK: previously allocated by thread T0 here:
|
|
// CHECK: #0 [[ALLOC_FRAME_0]]
|
|
// CHECK: #1 [[ALLOC_FRAME_1]]
|
|
|
|
return 0;
|
|
}
|