Module Name: src
Committed By: christos
Date: Mon Dec 2 01:38:54 UTC 2019
Modified Files:
src/lib/libc/arch/x86_64/sys: __sigtramp2.S
Log Message:
Add cfi annotations so that gdb can unwind the stack through signal handlers.
To generate a diff of this commit:
cvs rdiff -u -r1.6 -r1.7 src/lib/libc/arch/x86_64/sys/__sigtramp2.S
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/lib/libc/arch/x86_64/sys/__sigtramp2.S
diff -u src/lib/libc/arch/x86_64/sys/__sigtramp2.S:1.6 src/lib/libc/arch/x86_64/sys/__sigtramp2.S:1.7
--- src/lib/libc/arch/x86_64/sys/__sigtramp2.S:1.6 Thu May 22 11:01:57 2014
+++ src/lib/libc/arch/x86_64/sys/__sigtramp2.S Sun Dec 1 20:38:54 2019
@@ -1,4 +1,4 @@
-/* $NetBSD: __sigtramp2.S,v 1.6 2014/05/22 15:01:57 uebayasi Exp $ */
+/* $NetBSD: __sigtramp2.S,v 1.7 2019/12/02 01:38:54 christos Exp $ */
/*
* Copyright (c) 2001 Wasabi Systems, Inc.
@@ -42,10 +42,13 @@
* the signal; the kernel calls the signal handler directly.
*/
NENTRY(__sigtramp_siginfo_2)
+ .cfi_startproc
+ .cfi_def_cfa rsp, 8
movq %r15,%rdi
movq $SYS_setcontext, %rax
syscall
movq $-1,%rdi /* if we return here, something is wrong */
movq $SYS_exit, %rax
syscall
+ .cfi_endproc
END(__sigtramp_siginfo_2)
