From: Shenghou Ma <minux.ma@gmail.com>
Date: Thu, 25 Oct 2012 05:41:04 +0000 (+0800)
Subject: syscall: implement (*PtraceRegs).PC() and SetPC()
X-Git-Tag: go1.1rc2~2061
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=7c412e962c1cf5de4e128c0ca2caed14f9b87003;p=gostls13.git

syscall: implement (*PtraceRegs).PC() and SetPC()

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6763043
---

diff --git a/src/pkg/syscall/syscall_linux_arm.go b/src/pkg/syscall/syscall_linux_arm.go
index 766cf37c6c..547a4eb9bc 100644
--- a/src/pkg/syscall/syscall_linux_arm.go
+++ b/src/pkg/syscall/syscall_linux_arm.go
@@ -170,10 +170,9 @@ func Setrlimit(resource int, rlim *Rlimit) (err error) {
 	return setrlimit(resource, &rl)
 }
 
-// TODO(kaib): add support for tracing
-func (r *PtraceRegs) PC() uint64 { return 0 }
+func (r *PtraceRegs) PC() uint64 { return uint64(r.Uregs[15]) }
 
-func (r *PtraceRegs) SetPC(pc uint64) {}
+func (r *PtraceRegs) SetPC(pc uint64) { r.Uregs[15] = uint32(pc) }
 
 func (iov *Iovec) SetLen(length int) {
 	iov.Len = uint32(length)