commit d145456b168029188ffc654ce2e9f1bbc62f8b99
author Richard Miller <miller.research@gmail.com> Wed Jan 27 18:43:36 2016 +0000
committer Brad Fitzpatrick <bradfitz@golang.org> Mon Mar 07 16:25:17 2016 +0000
tree 94a89c5786f4ab251d8e1cea80246b465412d29a
parent c97ddf9c108adf0ca9c1aa2043a417885db411c2

runtime: signal handling support for plan9_arm

Plan 9 trap/signal handling differs on ARM from other architectures
because ARM has a link register.  Also trap message syntax varies
between different architectures (historical accident?).
Revised 7 March to clarify a comment.

Change-Id: Ib6485f82857a2f9a0d6b2c375cf0aaa230b83656
Reviewed-on: https://go-review.googlesource.com/18969
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

src/runtime/defs_plan9_386.go

diff --git a/src/runtime/defs_plan9_386.go b/src/runtime/defs_plan9_386.go
index 3574cb6..54ace48 100644
--- a/src/runtime/defs_plan9_386.go
+++ b/src/runtime/defs_plan9_386.go
@@ -30,9 +30,13 @@
 
 func (c *sigctxt) pc() uintptr { return uintptr(c.u.pc) }
 func (c *sigctxt) sp() uintptr { return uintptr(c.u.sp) }
+func (c *sigctxt) lr() uintptr { return uintptr(0) }
 
 func (c *sigctxt) setpc(x uintptr) { c.u.pc = uint32(x) }
 func (c *sigctxt) setsp(x uintptr) { c.u.sp = uint32(x) }
+func (c *sigctxt) setlr(x uintptr) {}
+
+func (c *sigctxt) savelr(x uintptr) {}
 
 func dumpregs(u *ureg) {
 	print("ax    ", hex(u.ax), "\n")
@@ -49,3 +53,5 @@
 	print("fs    ", hex(u.fs), "\n")
 	print("gs    ", hex(u.gs), "\n")
 }
+
+func sigpanictramp() {}