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// RUN: %clangxx_tsan %p/external-lib.cc -shared \
// RUN: -o %t-lib-instrumented.dylib \
// RUN: -install_name @rpath/`basename %t-lib-instrumented.dylib`
// RUN: %clangxx_tsan %p/external-lib.cc -shared -fno-sanitize=thread \
// RUN: -o %t-lib-noninstrumented.dylib \
// RUN: -install_name @rpath/`basename %t-lib-noninstrumented.dylib`
// RUN: %clangxx_tsan %p/external-lib.cc -shared -fno-sanitize=thread -DUSE_TSAN_CALLBACKS \
// RUN: -o %t-lib-noninstrumented-callbacks.dylib \
// RUN: -install_name @rpath/`basename %t-lib-noninstrumented-callbacks.dylib`
// RUN: %clangxx_tsan %s %t-lib-instrumented.dylib -o %t-lib-instrumented
// RUN: %clangxx_tsan %s %t-lib-noninstrumented.dylib -o %t-lib-noninstrumented
// RUN: %clangxx_tsan %s %t-lib-noninstrumented-callbacks.dylib -o %t-lib-noninstrumented-callbacks
// RUN: %deflake %run %t-lib-instrumented 2>&1 \
// RUN: | FileCheck %s --check-prefix=CHECK --check-prefix=TEST1
// RUN: %run %t-lib-noninstrumented 2>&1 \
// RUN: | FileCheck %s --check-prefix=CHECK --check-prefix=TEST2
// RUN: %deflake %run %t-lib-noninstrumented-callbacks 2>&1 \
// RUN: | FileCheck %s --check-prefix=CHECK --check-prefix=TEST3
#include <thread>
#include <stdio.h>
#include <stdlib.h>
struct MyObject;
typedef MyObject *MyObjectRef;
extern "C" {
void InitializeLibrary();
MyObject *ObjectCreate();
long ObjectRead(MyObject *);
void ObjectWrite(MyObject *, long);
void ObjectWriteAnother(MyObject *, long);
}
int main(int argc, char *argv[]) {
InitializeLibrary();
{
MyObjectRef ref = ObjectCreate();
std::thread t1([ref]{ ObjectRead(ref); });
std::thread t2([ref]{ ObjectRead(ref); });
t1.join();
t2.join();
}
// CHECK-NOT: WARNING: ThreadSanitizer
fprintf(stderr, "RR test done\n");
// CHECK: RR test done
{
MyObjectRef ref = ObjectCreate();
std::thread t1([ref]{ ObjectRead(ref); });
std::thread t2([ref]{ ObjectWrite(ref, 66); });
t1.join();
t2.join();
}
// TEST1: WARNING: ThreadSanitizer: data race
// TEST1: {{Write|Read}} of size 8 at
// TEST1: Previous {{write|read}} of size 8 at
// TEST1: Location is heap block of size 16 at
// TEST2-NOT: WARNING: ThreadSanitizer
// TEST3: WARNING: ThreadSanitizer: race on a library object
// TEST3: {{Mutating|read-only}} access of MyLibrary::MyObject at
// TEST3: {{ObjectWrite|ObjectRead}}
// TEST3: Previous {{mutating|read-only}} access of MyLibrary::MyObject at
// TEST3: {{ObjectWrite|ObjectRead}}
// TEST3: Location is MyLibrary::MyObject of size 16 at
// TEST3: {{ObjectCreate}}
fprintf(stderr, "RW test done\n");
// CHECK: RW test done
{
MyObjectRef ref = ObjectCreate();
std::thread t1([ref]{ ObjectWrite(ref, 76); });
std::thread t2([ref]{ ObjectWriteAnother(ref, 77); });
t1.join();
t2.join();
}
// TEST1-NOT: WARNING: ThreadSanitizer: data race
// TEST2-NOT: WARNING: ThreadSanitizer
// TEST3: WARNING: ThreadSanitizer: race on a library object
// TEST3: Mutating access of MyLibrary::MyObject at
// TEST3: {{ObjectWrite|ObjectWriteAnother}}
// TEST3: Previous mutating access of MyLibrary::MyObject at
// TEST3: {{ObjectWrite|ObjectWriteAnother}}
// TEST3: Location is MyLibrary::MyObject of size 16 at
// TEST3: {{ObjectCreate}}
fprintf(stderr, "WW test done\n");
// CHECK: WW test done
}
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