[ASan] Add print_full_thread_history runtime option (on by default) that prints all full thread creation paths for threads involved in ASan error report

llvm-svn: 163200

1 files changed, 61 insertions, 0 deletions

diff --git a/compiler-rt/lib/asan/lit_tests/deep_thread_stack.cc b/compiler-rt/lib/asan/lit_tests/deep_thread_stack.cc
new file mode 100644
index 00000000000..810f4e4971b
--- /dev/null
+++ b/compiler-rt/lib/asan/lit_tests/deep_thread_stack.cc
@@ -0,0 +1,61 @@
+// RUN: %clangxx_asan -m64 -O0 %s -o %t && %t 2>&1 | %symbolize | FileCheck %s
+// RUN: %clangxx_asan -m64 -O1 %s -o %t && %t 2>&1 | %symbolize | FileCheck %s
+// RUN: %clangxx_asan -m64 -O2 %s -o %t && %t 2>&1 | %symbolize | FileCheck %s
+// RUN: %clangxx_asan -m64 -O3 %s -o %t && %t 2>&1 | %symbolize | FileCheck %s
+// RUN: %clangxx_asan -m32 -O0 %s -o %t && %t 2>&1 | %symbolize | FileCheck %s
+// RUN: %clangxx_asan -m32 -O1 %s -o %t && %t 2>&1 | %symbolize | FileCheck %s
+// RUN: %clangxx_asan -m32 -O2 %s -o %t && %t 2>&1 | %symbolize | FileCheck %s
+// RUN: %clangxx_asan -m32 -O3 %s -o %t && %t 2>&1 | %symbolize | FileCheck %s
+
+#include <pthread.h>
+
+int *x;
+
+void *AllocThread(void *arg) {
+  x = new int;
+  *x = 42;
+  return NULL;
+}
+
+void *FreeThread(void *arg) {
+  delete x;
+  return NULL;
+}
+
+void *AccessThread(void *arg) {
+  *x = 43;  // BOOM
+  return NULL;
+}
+
+typedef void* (*callback_type)(void* arg);
+
+void *RunnerThread(void *function) {
+  pthread_t thread;
+  pthread_create(&thread, NULL, (callback_type)function, NULL);
+  pthread_join(thread, NULL);
+  return NULL;
+}
+
+void RunThread(callback_type function) {
+  pthread_t runner;
+  pthread_create(&runner, NULL, RunnerThread, (void*)function);
+  pthread_join(runner, NULL);
+}
+
+int main(int argc, char *argv[]) {
+  RunThread(AllocThread);
+  RunThread(FreeThread);
+  RunThread(AccessThread);
+  return (x != 0);
+}
+
+// CHECK: AddressSanitizer heap-use-after-free
+// CHECK: WRITE of size 4 at 0x{{.*}} thread T[[ACCESS_THREAD:[0-9]+]]
+// CHECK: freed by thread T[[FREE_THREAD:[0-9]+]] here:
+// CHECK: previously allocated by thread T[[ALLOC_THREAD:[0-9]+]] here:
+// CHECK: Thread T[[ACCESS_THREAD]] created by T[[ACCESS_RUNNER:[0-9]+]] here:
+// CHECK: Thread T[[ACCESS_RUNNER]] created by T0 here:
+// CHECK: Thread T[[FREE_THREAD]] created by T[[FREE_RUNNER:[0-9]+]] here:
+// CHECK: Thread T[[FREE_RUNNER]] created by T0 here:
+// CHECK: Thread T[[ALLOC_THREAD]] created by T[[ALLOC_RUNNER:[0-9]+]] here:
+// CHECK: Thread T[[ALLOC_RUNNER]] created by T0 here: