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author | Jonathan Roelofs <jonathan@codesourcery.com> | 2015-01-21 19:05:37 +0000 |
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committer | Jonathan Roelofs <jonathan@codesourcery.com> | 2015-01-21 19:05:37 +0000 |
commit | c0b48088747387dd36c652afc37f854d5bba3c24 (patch) | |
tree | 5c0783510e3ca981653e737a027259cc8c806097 /test/backtrace_test.pass.cpp | |
parent | d2a72c45bb125271df1e68aa66bdf6bc77a2ce96 (diff) |
Rename all of the tests in preparation for merging lit configs with libcxx
http://reviews.llvm.org/D7101
git-svn-id: https://llvm.org/svn/llvm-project/libcxxabi/trunk@226691 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/backtrace_test.pass.cpp')
-rw-r--r-- | test/backtrace_test.pass.cpp | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/test/backtrace_test.pass.cpp b/test/backtrace_test.pass.cpp new file mode 100644 index 0000000..f54a478 --- /dev/null +++ b/test/backtrace_test.pass.cpp @@ -0,0 +1,63 @@ +//===---------------------- backtrace_test.cpp ----------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is dual licensed under the MIT and the University of Illinois Open +// Source Licenses. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// XFAIL: arm +#include <assert.h> +#include <stddef.h> +#include <unwind.h> + +extern "C" _Unwind_Reason_Code +trace_function(struct _Unwind_Context* context, void* ntraced) { + (*reinterpret_cast<size_t*>(ntraced))++; + // We should never have a call stack this deep... + assert(*reinterpret_cast<size_t*>(ntraced) < 20); + return _URC_NO_REASON; +} + +void call3_throw(size_t* ntraced) { + try { + _Unwind_Backtrace(trace_function, ntraced); + } catch (...) { + assert(false); + } +} + +void call3_nothrow(size_t* ntraced) { + _Unwind_Backtrace(trace_function, ntraced); +} + +void call2(size_t* ntraced, bool do_throw) { + if (do_throw) { + call3_throw(ntraced); + } else { + call3_nothrow(ntraced); + } +} + +void call1(size_t* ntraced, bool do_throw) { + call2(ntraced, do_throw); +} + +int main() { + size_t throw_ntraced = 0; + size_t nothrow_ntraced = 0; + + call1(¬hrow_ntraced, false); + + try { + call1(&throw_ntraced, true); + } catch (...) { + assert(false); + } + + // Different platforms (and different runtimes) will unwind a different number + // of times, so we can't make any better assumptions than this. + assert(nothrow_ntraced > 1); + assert(throw_ntraced == nothrow_ntraced); // Make sure we unwind through catch + return 0; +} |