1 // Regression test for 2 // https://code.google.com/p/address-sanitizer/issues/detail?id=178 3 4 // RUN: %clangxx_asan -O0 %p/SharedLibs/init-order-dlopen-so.cc \ 5 // RUN: -fPIC -shared -o %t-so.so 6 // If the linker doesn't support --export-dynamic (which is ELF-specific), 7 // try to link without that option. 8 // FIXME: find a better solution. 9 // RUN: %clangxx_asan -O0 %s -o %t -Wl,--export-dynamic || \ 10 // RUN: %clangxx_asan -O0 %s -o %t 11 // RUN: ASAN_OPTIONS=check_initialization_order=true:strict_init_order=true %t 2>&1 | FileCheck %s 12 #include <dlfcn.h> 13 #include <pthread.h> 14 #include <stdio.h> 15 #include <unistd.h> 16 17 #include <string> 18 19 using std::string; 20 21 int foo() { 22 return 42; 23 } 24 int global = foo(); 25 26 __attribute__((visibility("default"))) 27 void inc_global() { 28 global++; 29 } 30 31 void *global_poller(void *arg) { 32 while (true) { 33 if (global != 42) 34 break; 35 usleep(100); 36 } 37 return 0; 38 } 39 40 int main(int argc, char *argv[]) { 41 pthread_t p; 42 pthread_create(&p, 0, global_poller, 0); 43 string path = string(argv[0]) + "-so.so"; 44 if (0 == dlopen(path.c_str(), RTLD_NOW)) { 45 fprintf(stderr, "dlerror: %s\n", dlerror()); 46 return 1; 47 } 48 pthread_join(p, 0); 49 printf("PASSED\n"); 50 // CHECK: PASSED 51 return 0; 52 } 53
