GNU bug report logs - #63334
[PATCH] Add hurd-amd64 support

Previous Next

To add a comment to this bug, you must first unarchive it, by sending
a message to control AT debbugs.gnu.org, with unarchive 63334 in the body.
You can then email your comments to 63334 AT debbugs.gnu.org in the normal way.

Toggle the display of automated, internal messages from the tracker.

Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Samuel Thibault <samuel.thibault <at> gnu.org>
To: bug-grep <at> gnu.org
Subject: [PATCH] Add hurd-amd64 support
Date: Sat, 6 May 2023 21:06:24 +0200

This adds SIGSEGV_FAULT_STACKPOINTER for the hurd-amd64 case

--- ./lib/sigsegv.c.original	2023-05-05 10:45:54.673751100 +0000
+++ ./lib/sigsegv.c	2023-05-05 10:48:47.903577554 +0000
@@ -351,6 +351,17 @@
    "old esp, if trapped from user".  */
 #  define SIGSEGV_FAULT_STACKPOINTER  scp->sc_uesp
 
+# elif defined __x86_64__
+
+/* scp points to a 'struct sigcontext' (defined in
+   glibc/sysdeps/mach/hurd/x86_64/bits/sigcontext.h).
+   The registers of this struct get pushed on the stack through
+   gnumach/x86_64/i386/locore.S:trapall.  */
+/* Both sc_rsp and sc_ursp appear to have the same value.
+   It appears more reliable to use sc_ursp because it is labelled as
+   "old rsp, if trapped from user".  */
+#  define SIGSEGV_FAULT_STACKPOINTER  scp->sc_ursp
+
 # endif
 
 #endif

Message #10 received at 63334-done <at> debbugs.gnu.org (full text, mbox):

From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Samuel Thibault <samuel.thibault <at> gnu.org>
Cc: 63334-done <at> debbugs.gnu.org
Subject: Re: [PATCH] Add hurd-amd64 support
Date: Fri, 13 Dec 2024 17:46:16 -0700

Re <https://bugs.gnu.org/63334>: Thanks for the bug report. That bug was 
fixed in Gnulib and the fix folded into grep. Closing the report.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.