forked from OSchip/llvm-project
58 lines
1.4 KiB
C++
58 lines
1.4 KiB
C++
// Regression test for
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// https://code.google.com/p/address-sanitizer/issues/detail?id=178
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// Assume we're on Darwin and try to pass -U to the linker. If this flag is
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// unsupported, don't use it.
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// RUN: %clangxx_asan -O0 %p/SharedLibs/init-order-dlopen-so.cc \
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// RUN: -fPIC -shared -o %t-so.so -Wl,-U,_inc_global || \
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// RUN: %clangxx_asan -O0 %p/SharedLibs/init-order-dlopen-so.cc \
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// RUN: -fPIC -shared -o %t-so.so
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// If the linker doesn't support --export-dynamic (which is ELF-specific),
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// try to link without that option.
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// FIXME: find a better solution.
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// RUN: %clangxx_asan -O0 %s -lpthread -ldl -o %t -Wl,--export-dynamic || \
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// RUN: %clangxx_asan -O0 %s -lpthread -ldl -o %t
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// RUN: ASAN_OPTIONS=strict_init_order=true %t 2>&1 | FileCheck %s
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#include <dlfcn.h>
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#include <pthread.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <string>
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using std::string;
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int foo() {
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return 42;
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}
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int global = foo();
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__attribute__((visibility("default")))
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extern "C"
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void inc_global() {
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global++;
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}
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void *global_poller(void *arg) {
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while (true) {
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if (global != 42)
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break;
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usleep(100);
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}
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return 0;
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}
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int main(int argc, char *argv[]) {
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pthread_t p;
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pthread_create(&p, 0, global_poller, 0);
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string path = string(argv[0]) + "-so.so";
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if (0 == dlopen(path.c_str(), RTLD_NOW)) {
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fprintf(stderr, "dlerror: %s\n", dlerror());
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return 1;
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}
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pthread_join(p, 0);
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printf("PASSED\n");
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// CHECK: PASSED
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return 0;
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}
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