diff options
Diffstat (limited to 'lib/asan/lit_tests/TestCases/init-order-dlopen.cc')
-rw-r--r-- | lib/asan/lit_tests/TestCases/init-order-dlopen.cc | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/lib/asan/lit_tests/TestCases/init-order-dlopen.cc b/lib/asan/lit_tests/TestCases/init-order-dlopen.cc new file mode 100644 index 000000000000..d30d11999246 --- /dev/null +++ b/lib/asan/lit_tests/TestCases/init-order-dlopen.cc @@ -0,0 +1,57 @@ +// Regression test for +// https://code.google.com/p/address-sanitizer/issues/detail?id=178 + +// Assume we're on Darwin and try to pass -U to the linker. If this flag is +// unsupported, don't use it. +// RUN: %clangxx_asan -O0 %p/SharedLibs/init-order-dlopen-so.cc \ +// RUN: -fPIC -shared -o %t-so.so -Wl,-U,_inc_global || \ +// RUN: %clangxx_asan -O0 %p/SharedLibs/init-order-dlopen-so.cc \ +// RUN: -fPIC -shared -o %t-so.so +// If the linker doesn't support --export-dynamic (which is ELF-specific), +// try to link without that option. +// FIXME: find a better solution. +// RUN: %clangxx_asan -O0 %s -o %t -Wl,--export-dynamic || \ +// RUN: %clangxx_asan -O0 %s -o %t +// RUN: ASAN_OPTIONS=strict_init_order=true %t 2>&1 | FileCheck %s +#include <dlfcn.h> +#include <pthread.h> +#include <stdio.h> +#include <unistd.h> + +#include <string> + +using std::string; + +int foo() { + return 42; +} +int global = foo(); + +__attribute__((visibility("default"))) +extern "C" +void inc_global() { + global++; +} + +void *global_poller(void *arg) { + while (true) { + if (global != 42) + break; + usleep(100); + } + return 0; +} + +int main(int argc, char *argv[]) { + pthread_t p; + pthread_create(&p, 0, global_poller, 0); + string path = string(argv[0]) + "-so.so"; + if (0 == dlopen(path.c_str(), RTLD_NOW)) { + fprintf(stderr, "dlerror: %s\n", dlerror()); + return 1; + } + pthread_join(p, 0); + printf("PASSED\n"); + // CHECK: PASSED + return 0; +} |