From: Jon TURNEY <jon.turney@dronecode.org.uk>
To: cygwin-patches@cygwin.com
Cc: Jon TURNEY <jon.turney@dronecode.org.uk>
Subject: [PATCH 3/3] Set mcontext.cr2 to the faulting address
Date: Thu, 09 Apr 2015 13:13:00 -0000 [thread overview]
Message-ID: <1428585205-14420-4-git-send-email-jon.turney@dronecode.org.uk> (raw)
In-Reply-To: <1428585205-14420-1-git-send-email-jon.turney@dronecode.org.uk>
* exceptions.cc (call_signal_handler): Set mcontext.cr2 to the
faulting address.
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
---
winsup/cygwin/ChangeLog | 5 +++++
winsup/cygwin/exceptions.cc | 4 ++++
2 files changed, 9 insertions(+)
diff --git a/winsup/cygwin/exceptions.cc b/winsup/cygwin/exceptions.cc
index 0223052..919122e 100644
--- a/winsup/cygwin/exceptions.cc
+++ b/winsup/cygwin/exceptions.cc
@@ -1521,6 +1521,10 @@ _cygtls::call_signal_handler ()
context.uc_sigmask = context.uc_mcontext.oldmask = this_oldmask;
+ context.uc_mcontext.cr2 = (thissi.si_signo == SIGSEGV
+ || thissi.si_signo == SIGBUS)
+ ? (uintptr_t) thissi.si_addr : 0;
+
thiscontext = &context;
}
--
2.1.4
next prev parent reply other threads:[~2015-04-09 13:13 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-09 13:13 [PATCH 0/3] signal handler ucontext improvements Jon TURNEY
2015-04-09 13:13 ` Jon TURNEY [this message]
2015-04-09 14:54 ` [PATCH 3/3] Set mcontext.cr2 to the faulting address Corinna Vinschen
2015-04-09 13:13 ` [PATCH 2/3] Only construct ucontext for SA_SIGINFO signal handlers Jon TURNEY
2015-04-09 13:13 ` [PATCH 1/3] Initialize context before RtlContextCapture Jon TURNEY
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1428585205-14420-4-git-send-email-jon.turney@dronecode.org.uk \
--to=jon.turney@dronecode.org.uk \
--cc=cygwin-patches@cygwin.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).