1 // -*- C++ -*-
2 //===----------------------------------------------------------------------===//
3 //
4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
5 // See https://llvm.org/LICENSE.txt for license information.
6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //
8 //===----------------------------------------------------------------------===//
9 
10 // Ensure that functions marked as signal frames are reported as such.
11 
12 // TODO: Investigate this failure on Apple
13 // XFAIL: target={{.+}}-apple-{{.+}}
14 
15 // TODO: Figure out why this fails with Memory Sanitizer.
16 // XFAIL: msan
17 
18 // UNSUPPORTED: libunwind-arm-ehabi
19 
20 // The AIX assembler does not support CFI directives, which
21 // are necessary to run this test.
22 // UNSUPPORTED: target=powerpc{{(64)?}}-ibm-aix
23 
24 #include <assert.h>
25 #include <stdlib.h>
26 #include <libunwind.h>
27 
test()28 void test() {
29   asm(".cfi_signal_frame");
30   unw_cursor_t cursor;
31   unw_context_t uc;
32   unw_getcontext(&uc);
33   unw_init_local(&cursor, &uc);
34   assert(unw_step(&cursor) > 0);
35   assert(unw_is_signal_frame(&cursor));
36 }
37 
main(int,char **)38 int main(int, char**) {
39   test();
40   return 0;
41 }
42