1 files changed, 25 insertions, 0 deletions
diff --git a/lib/asan/lit_tests/TestCases/deep_call_stack.cc b/lib/asan/lit_tests/TestCases/deep_call_stack.cc
new file mode 100644
index 000000000000..e24704b9019e
--- /dev/null
+++ b/lib/asan/lit_tests/TestCases/deep_call_stack.cc
@@ -0,0 +1,25 @@
+// Check that UAR mode can handle very deep recusrion.
+// export ASAN_OPTIONS=detect_stack_use_after_return=1
+// RUN: %clangxx_asan -O2 %s -o %t && \
+// RUN:   %t 2>&1 | FileCheck %s
+// Also check that use_sigaltstack+verbosity doesn't crash.
+// RUN: ASAN_OPTIONS=verbosity=1:use_sigaltstack=1 %t  | FileCheck %s
+#include <stdio.h>
+
+__attribute__((noinline))
+void RecursiveFunc(int depth, int *ptr) {
+  if ((depth % 1000) == 0)
+    printf("[%05d] ptr: %p\n", depth, ptr);
+  if (depth == 0)
+    return;
+  int local;
+  RecursiveFunc(depth - 1, &local);
+}
+
+int main(int argc, char **argv) {
+  RecursiveFunc(40000, 0);
+  return 0;
+}
+// CHECK: [40000] ptr:
+// CHECK: [20000] ptr:
+// CHECK: [00000] ptr