diff options
| author | George Rimar <grimar@accesssoftek.com> | 2018-02-20 09:04:13 +0000 |
|---|---|---|
| committer | George Rimar <grimar@accesssoftek.com> | 2018-02-20 09:04:13 +0000 |
| commit | 9712113f8ba65a634a02cf863737e2e48a594524 (patch) | |
| tree | 2084cf6618c1708497c9d5ec80b2e67839c9de48 /llvm/lib/MC/MCStreamer.cpp | |
| parent | 2cede2e229edfcf5815842d41dec66deb9e100f9 (diff) | |
| download | llvm-9712113f8ba65a634a02cf863737e2e48a594524.zip llvm-9712113f8ba65a634a02cf863737e2e48a594524.tar.gz llvm-9712113f8ba65a634a02cf863737e2e48a594524.tar.bz2 | |
[MC] - Don't crash on unclosed frame.
llvm-mc can crash when
there is cfi_startproc without cfi_end_proc:
.text
.globl foo
foo:
.cfi_startproc
Testcase shows the issue, patch fixes it.
Differential revision: https://reviews.llvm.org/D43456
llvm-svn: 325564
Diffstat (limited to 'llvm/lib/MC/MCStreamer.cpp')
| -rw-r--r-- | llvm/lib/MC/MCStreamer.cpp | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/llvm/lib/MC/MCStreamer.cpp b/llvm/lib/MC/MCStreamer.cpp index bc9c93f..a2c58e6 100644 --- a/llvm/lib/MC/MCStreamer.cpp +++ b/llvm/lib/MC/MCStreamer.cpp @@ -816,10 +816,11 @@ void MCStreamer::EmitWindowsUnwindTables() { } void MCStreamer::Finish() { - if (!DwarfFrameInfos.empty() && !DwarfFrameInfos.back().End) - getContext().reportError(SMLoc(), "Unfinished frame!"); - if (!WinFrameInfos.empty() && !WinFrameInfos.back()->End) + if ((!DwarfFrameInfos.empty() && !DwarfFrameInfos.back().End) || + (!WinFrameInfos.empty() && !WinFrameInfos.back()->End)) { getContext().reportError(SMLoc(), "Unfinished frame!"); + return; + } MCTargetStreamer *TS = getTargetStreamer(); if (TS) |