1 files changed, 46 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/c-c++-common/asan/clone-test-1.c b/gcc-4.9/gcc/testsuite/c-c++-common/asan/clone-test-1.c
new file mode 100644
index 000000000..fd187aaad
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/c-c++-common/asan/clone-test-1.c
@@ -0,0 +1,46 @@
+/* Regression test for:
+   http://code.google.com/p/address-sanitizer/issues/detail?id=37 */
+
+/* { dg-do run { target { *-*-linux* } } } */
+/* { dg-require-effective-target clone } */
+/* { dg-require-effective-target hw } */
+/* { dg-options "-D_GNU_SOURCE" } */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sched.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+int Child(void *arg) {
+  char x[32] = {0};  /* Stack gets poisoned. */
+  printf("Child:  %p\n", x);
+  _exit(1);  /* NoReturn, stack will remain unpoisoned unless we do something. */
+}
+
+volatile int zero = 0;
+
+int main(int argc, char **argv) {
+  int i;
+  const int kStackSize = 1 << 20;
+  char child_stack[kStackSize + 1];
+  char *sp = child_stack + kStackSize;  /* Stack grows down. */
+  printf("Parent: %p\n", sp);
+  pid_t clone_pid = clone(Child, sp, CLONE_FILES | CLONE_VM, NULL, 0, 0, 0);
+  int status;
+  pid_t wait_result = waitpid(clone_pid, &status, __WCLONE);
+  if (wait_result < 0) {
+    perror("waitpid");
+    return 1;
+  }
+  if (wait_result == clone_pid && WIFEXITED(status)) {
+    /* Make sure the child stack was indeed unpoisoned. */
+    for (i = 0; i < kStackSize; i++)
+      child_stack[i] = i;
+    int ret = child_stack[zero];
+    return ret;
+  }
+  return 1;
+}