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75 lines
1.9 KiB
75 lines
1.9 KiB
4 months ago
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// RUN: rm -rf %t-dir
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// RUN: mkdir %t-dir
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// RUN: %clangxx_tsan -O1 %s -DLIB -fPIC -fno-sanitize=thread -shared -o %t-dir/libignore_lib.so
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// RUN: %clangxx_tsan -O1 %s %link_libcxx_tsan -o %t-dir/executable
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// RUN: %env_tsan_opts=suppressions='%s.supp' %run %t-dir/executable 2>&1 | FileCheck %s
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// Copied from ignore_lib5.cpp:
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// REQUIRES: stable-runtime
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// UNSUPPORTED: powerpc64le
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// UNSUPPORTED: netbsd
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// Test that pthread_detach works in libraries ignored by called_from_lib.
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// For more context see:
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// https://groups.google.com/forum/#!topic/thread-sanitizer/ecH2P0QUqPs
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#include "test.h"
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#include <dlfcn.h>
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#include <errno.h>
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#include <libgen.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string>
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#include <sys/mman.h>
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#ifndef LIB
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void *thr(void *arg) {
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*(volatile long long *)arg = 1;
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return 0;
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}
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int main(int argc, char **argv) {
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std::string lib = std::string(dirname(argv[0])) + "/libignore_lib.so";
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void *h = dlopen(lib.c_str(), RTLD_GLOBAL | RTLD_NOW);
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if (h == 0)
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exit(printf("failed to load the library (%d)\n", errno));
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void (*libfunc)() = (void (*)())dlsym(h, "libfunc");
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if (libfunc == 0)
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exit(printf("failed to find the func (%d)\n", errno));
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libfunc();
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const int kThreads = 10;
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pthread_t t[kThreads];
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volatile long long data[kThreads];
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for (int i = 0; i < kThreads; i++)
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pthread_create(&t[i], 0, thr, (void *)&data[i]);
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for (int i = 0; i < kThreads; i++) {
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pthread_join(t[i], 0);
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data[i] = 2;
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}
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fprintf(stderr, "DONE\n");
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}
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// CHECK-NOT: WARNING: ThreadSanitizer:
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// CHECK: DONE
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// CHECK-NOT: WARNING: ThreadSanitizer:
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#else // #ifdef LIB
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void *thr(void *p) {
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sleep(1);
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pthread_detach(pthread_self());
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return 0;
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}
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extern "C" void libfunc() {
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const int kThreads = 10;
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pthread_t t[kThreads];
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for (int i = 0; i < kThreads; i++)
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pthread_create(&t[i], 0, thr, 0);
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sleep(2);
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}
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#endif // #ifdef LIB
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