1 // Make sure ASan doesn't hang in an exec loop if DYLD_INSERT_LIBRARIES is set.
2 // This is a regression test for
3 // https://code.google.com/p/address-sanitizer/issues/detail?id=159
4 
5 // RUN: %clangxx_asan %s -o %t
6 // RUN: %clangxx -DSHARED_LIB %s \
7 // RUN:     -dynamiclib -o darwin-dummy-shared-lib-so.dylib
8 
9 // FIXME: the following command line may hang in the case of a regression.
10 // RUN: %env DYLD_INSERT_LIBRARIES=darwin-dummy-shared-lib-so.dylib \
11 // RUN:     %run %t 2>&1 | FileCheck %s || exit 1
12 
13 // UNSUPPORTED: ios
14 
15 #if !defined(SHARED_LIB)
16 #include <stdio.h>
17 #include <stdlib.h>
18 
19 int main() {
20   const char kEnvName[] = "DYLD_INSERT_LIBRARIES";
21   printf("%s=%s\n", kEnvName, getenv(kEnvName));
22   // CHECK: {{DYLD_INSERT_LIBRARIES=.*darwin-dummy-shared-lib-so.dylib.*}}
23   return 0;
24 }
25 #else  // SHARED_LIB
26 void foo() {}
27 #endif  // SHARED_LIB
28