[PATCH 1/3] Initialize context before RtlContextCapture
Jon TURNEY
jon.turney@dronecode.org.uk
Thu Apr 9 13:13:00 GMT 2015
* exceptions.cc (call_signal_handler): Zero initialize context and set
context flags, as RlCaptureContext doesn't.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
---
winsup/cygwin/ChangeLog | 5 +++++
winsup/cygwin/exceptions.cc | 8 ++++++--
2 files changed, 11 insertions(+), 2 deletions(-)
diff --git a/winsup/cygwin/exceptions.cc b/winsup/cygwin/exceptions.cc
index 0d1f36d..9d50c1e 100644
--- a/winsup/cygwin/exceptions.cc
+++ b/winsup/cygwin/exceptions.cc
@@ -1496,8 +1496,12 @@ _cygtls::call_signal_handler ()
if (thissi.si_cyg)
memcpy (&thiscontext.uc_mcontext, ((cygwin_exception *)thissi.si_cyg)->context(), sizeof(CONTEXT));
else
- RtlCaptureContext ((CONTEXT *)&thiscontext.uc_mcontext);
- /* FIXME: Really this should be the context which the signal interrupted? */
+ {
+ /* FIXME: Really this should be the context which the signal interrupted? */
+ memset(&thiscontext.uc_mcontext, 0, sizeof(struct __mcontext));
+ thiscontext.uc_mcontext.ctxflags = CONTEXT_FULL;
+ RtlCaptureContext ((CONTEXT *)&thiscontext.uc_mcontext);
+ }
/* FIXME: If/when sigaltstack is implemented, this will need to do
something more complicated */
--
2.1.4
More information about the Cygwin-patches
mailing list