1// RUN: %clangxx_tsan -O1 %s -DLIB -fPIC -shared -o %T/libignore_lib4.so
2// RUN: %clangxx_tsan -O1 %s -o %t
3// RUN: echo "called_from_lib:libignore_lib4.so" > %t.supp
4// RUN: %env_tsan_opts=suppressions='%t.supp' %run %t 2>&1 | FileCheck %s
5
6// Longjmp assembly has not been implemented for mips64 yet
7// XFAIL: mips64
8// powerpc64 big endian bots failed with "FileCheck error: '-' is empty" due
9// to a segmentation fault.
10// UNSUPPORTED: powerpc64-unknown-linux-gnu
11// aarch64 bots failed with "called_from_lib suppression 'libignore_lib4.so'
12//                           is matched against 2 libraries".
13// UNSUPPORTED: aarch64
14
15// Test longjmp in ignored lib.
16// It used to crash since we jumped out of ScopedInterceptor scope.
17
18#include "test.h"
19#include <setjmp.h>
20#include <string.h>
21#include <errno.h>
22#include <libgen.h>
23#include <string>
24
25#ifdef LIB
26
27extern "C" void myfunc() {
28  for (int i = 0; i < (1 << 20); i++) {
29    jmp_buf env;
30    if (!setjmp(env))
31      longjmp(env, 1);
32  }
33}
34
35#else
36
37int main(int argc, char **argv) {
38  std::string lib = std::string(dirname(argv[0])) + "/libignore_lib4.so";
39  void *h = dlopen(lib.c_str(), RTLD_GLOBAL | RTLD_NOW);
40  void (*func)() = (void(*)())dlsym(h, "myfunc");
41  func();
42  fprintf(stderr, "DONE\n");
43  return 0;
44}
45
46#endif
47
48// CHECK: DONE
49