[newlib-cygwin] Cygwin: strace: ignore GCC exceptions
Ken Brown
kbrown@sourceware.org
Thu Aug 20 17:48:00 GMT 2020
https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=a93a85a1ff3ca937dabb1d985381b27836ce1bfc
commit a93a85a1ff3ca937dabb1d985381b27836ce1bfc
Author: Ken Brown <kbrown@cornell.edu>
Date: Thu Aug 20 09:47:47 2020 -0400
Cygwin: strace: ignore GCC exceptions
Any C++ app that calls 'throw' on 64-bit Cygwin results in an
exception of type STATUS_GCC_THROW (0x20474343) generated by the C++
runtime. Don't pollute the strace output by printing information
about this and other GCC exceptions.
Diff:
---
winsup/utils/strace.cc | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/winsup/utils/strace.cc b/winsup/utils/strace.cc
index 9b6569a70..b96ad40c1 100644
--- a/winsup/utils/strace.cc
+++ b/winsup/utils/strace.cc
@@ -25,6 +25,7 @@ details. */
#include "../cygwin/include/sys/cygwin.h"
#include "../cygwin/include/cygwin/version.h"
#include "../cygwin/cygtls_padsize.h"
+#include "../cygwin/gcc_seh.h"
#include "path.h"
#undef cygwin_internal
#include "loadlib.h"
@@ -790,6 +791,13 @@ proc_child (unsigned mask, FILE *ofile, pid_t pid)
case STATUS_BREAKPOINT:
case 0x406d1388: /* SetThreadName exception. */
break;
+#ifdef __x86_64__
+ case STATUS_GCC_THROW:
+ case STATUS_GCC_UNWIND:
+ case STATUS_GCC_FORCED:
+ status = DBG_EXCEPTION_NOT_HANDLED;
+ break;
+#endif
default:
status = DBG_EXCEPTION_NOT_HANDLED;
if (ev.u.Exception.dwFirstChance)
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