From: Daniel Jacobowitz <dan@debian.org>
To: Andrew Morton <akpm@osdl.org>, Linus Torvalds <torvalds@osdl.org>
Cc: linux-kernel@vger.kernel.org, Roland McGrath <roland@redhat.com>
Subject: Unwind information fix for the vsyscall DSO
Date: Sun, 24 Oct 2004 19:01:38 -0400 [thread overview]
Message-ID: <20041024230138.GA22543@nevyn.them.org> (raw)
When working on GDB support I found a typo. I assume the comment is
correct. If you step to this particular instruction and backtrace, GDB gets
lost.
I haven't tested the fixed version yet, but I'm pretty confident in this
patch :-) Please apply.
--- arch/i386/kernel/vsyscall-sysenter.S.orig 2004-04-05 21:21:20.000000000 -0400
+++ arch/i386/kernel/vsyscall-sysenter.S 2004-10-24 18:50:54.000000000 -0400
@@ -84,7 +84,7 @@
.byte 0x04 /* DW_CFA_advance_loc4 */
.long .Lpop_ebp-.Lenter_kernel
.byte 0x0e /* DW_CFA_def_cfa_offset */
- .byte 0x12 /* RA at offset 12 now */
+ .byte 0x0c /* RA at offset 12 now */
.byte 0xc5 /* DW_CFA_restore %ebp */
.byte 0x04 /* DW_CFA_advance_loc4 */
.long .Lpop_edx-.Lpop_ebp
--
Daniel Jacobowitz
next reply other threads:[~2004-10-24 23:01 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-24 23:01 Daniel Jacobowitz [this message]
2004-10-24 23:27 ` Unwind information fix for the vsyscall DSO Linus Torvalds
2004-10-25 2:26 ` Daniel Jacobowitz
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