Author: zhanglimin Date: 2023-04-07T13:42:23+08:00 New Revision: 366c5474a3002114b8980ab278d93baa96046385
URL: https://github.com/llvm/llvm-project/commit/366c5474a3002114b8980ab278d93baa96046385 DIFF: https://github.com/llvm/llvm-project/commit/366c5474a3002114b8980ab278d93baa96046385.diff LOG: [libunwind][test] Add test to check for unw_resume() This is here for local unwinding, which unw_resume() restores the machine state and then directly resumes execution in the target stack frame. Reviewed By: wangleiat Differential Revision: https://reviews.llvm.org/D147371 Added: libunwind/test/unw_resume.pass.cpp Modified: Removed: ################################################################################ diff --git a/libunwind/test/unw_resume.pass.cpp b/libunwind/test/unw_resume.pass.cpp new file mode 100644 index 0000000000000..e652620a4a050 --- /dev/null +++ b/libunwind/test/unw_resume.pass.cpp @@ -0,0 +1,39 @@ +// -*- C++ -*- +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +// Ensure that unw_resume() resumes execution at the stack frame identified by +// cursor. + +// TODO: Investigate this failure on AIX system. +// XFAIL: target={{.*}}-aix{{.*}} + +// TODO: Figure out why this fails with Memory Sanitizer. +// XFAIL: msan + +// FIXME: The return address register($ra/$r1) is restored with a destroyed base +// address register($a0/$r4) in the assembly file `UnwindRegistersRestore.S` on +// LoongArch. And we will fix this issue in the next commit. +// XFAIL: target={{loongarch64-.+}} + +#include <libunwind.h> + +void test_unw_resume() { + unw_context_t context; + unw_cursor_t cursor; + + unw_getcontext(&context); + unw_init_local(&cursor, &context); + unw_step(&cursor); + unw_resume(&cursor); +} + +int main() { + test_unw_resume(); + return 0; +} _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
