diff options
Diffstat (limited to 'llvm/lib/Support/Windows/Signals.inc')
| -rw-r--r-- | llvm/lib/Support/Windows/Signals.inc | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/llvm/lib/Support/Windows/Signals.inc b/llvm/lib/Support/Windows/Signals.inc index 8b525f1bd4ac4..09e19ae41f1ad 100644 --- a/llvm/lib/Support/Windows/Signals.inc +++ b/llvm/lib/Support/Windows/Signals.inc @@ -820,7 +820,13 @@ static LONG WINAPI LLVMUnhandledExceptionFilter(LPEXCEPTION_POINTERS ep) { << "\n"; } - LocalPrintStackTrace(llvm::errs(), ep ? ep->ContextRecord : nullptr); + // Stack unwinding appears to modify the context. Copy it to preserve the + // caller's context. + CONTEXT ContextCopy; + if (ep) + memcpy(&ContextCopy, ep->ContextRecord, sizeof(ContextCopy)); + + LocalPrintStackTrace(llvm::errs(), ep ? &ContextCopy : nullptr); return EXCEPTION_EXECUTE_HANDLER; } |