1 // RUN: %clangxx_asan -O0 -DSHARED_LIB %s -fPIC -shared -o %t-so.so
2 // RUN: %clangxx_asan -O0 %s %libdl -o %t && not %run %t 2>&1 | FileCheck %s
3 // RUN: %clangxx_asan -O1 -DSHARED_LIB %s -fPIC -shared -o %t-so.so
4 // RUN: %clangxx_asan -O1 %s %libdl -o %t && not %run %t 2>&1 | FileCheck %s
5 // RUN: %clangxx_asan -O2 -DSHARED_LIB %s -fPIC -shared -o %t-so.so
6 // RUN: %clangxx_asan -O2 %s %libdl -o %t && not %run %t 2>&1 | FileCheck %s
7 // RUN: %clangxx_asan -O3 -DSHARED_LIB %s -fPIC -shared -o %t-so.so
8 // RUN: %clangxx_asan -O3 %s %libdl -o %t && not %run %t 2>&1 | FileCheck %s
9 // XFAIL: arm-linux-gnueabi
10
11 #if !defined(SHARED_LIB)
12 #include <dlfcn.h>
13 #include <stdio.h>
14 #include <string.h>
15
16 #include <string>
17
18 using std::string;
19
20 typedef void (fun_t)(int x);
21
main(int argc,char * argv[])22 int main(int argc, char *argv[]) {
23 string path = string(argv[0]) + "-so.so";
24 printf("opening %s ... \n", path.c_str());
25 void *lib = dlopen(path.c_str(), RTLD_NOW);
26 if (!lib) {
27 printf("error in dlopen(): %s\n", dlerror());
28 return 1;
29 }
30 fun_t *inc = (fun_t*)dlsym(lib, "inc");
31 if (!inc) return 1;
32 printf("ok\n");
33 inc(1);
34 inc(-1); // BOOM
35 // CHECK: {{.*ERROR: AddressSanitizer: global-buffer-overflow}}
36 // CHECK: {{READ of size 4 at 0x.* thread T0}}
37 // CHECK: {{ #0 0x.*}}
38 // CHECK: {{ #1 0x.* in main .*shared-lib-test.cc:}}[[@LINE-4]]
39 return 0;
40 }
41 #else // SHARED_LIB
42 #include <stdio.h>
43 #include <string.h>
44
45 int pad[10];
46 int GLOB[10] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
47
48 extern "C"
inc(int index)49 void inc(int index) {
50 GLOB[index]++;
51 }
52
53 extern "C"
inc2(int * a,int index)54 void inc2(int *a, int index) {
55 a[index]++;
56 }
57 #endif // SHARED_LIB
58