syscall: Don't use PtraceRegs if it is not defined.
R=iant
CC=gofrontend-dev
https://golang.org/cl/5598057
diff --git a/libgo/go/syscall/syscall_linux_alpha.go b/libgo/go/syscall/syscall_linux_alpha.go
index d58f8eb..713546c 100644
--- a/libgo/go/syscall/syscall_linux_alpha.go
+++ b/libgo/go/syscall/syscall_linux_alpha.go
@@ -6,42 +6,52 @@
package syscall
+import "unsafe"
+
type PtraceRegs struct {
- R0 uint64
- R1 uint64
- R2 uint64
- R3 uint64
- R4 uint64
- R5 uint64
- R6 uint64
- R7 uint64
- R8 uint64
- R19 uint64
- R20 uint64
- R21 uint64
- R22 uint64
- R23 uint64
- R24 uint64
- R25 uint64
- R26 uint64
- R27 uint64
- R28 uint64
- Hae uint64
+ R0 uint64
+ R1 uint64
+ R2 uint64
+ R3 uint64
+ R4 uint64
+ R5 uint64
+ R6 uint64
+ R7 uint64
+ R8 uint64
+ R19 uint64
+ R20 uint64
+ R21 uint64
+ R22 uint64
+ R23 uint64
+ R24 uint64
+ R25 uint64
+ R26 uint64
+ R27 uint64
+ R28 uint64
+ Hae uint64
Trap_a0 uint64
Trap_a1 uint64
Trap_a2 uint64
- Ps uint64
- Pc uint64
- Gp uint64
- R16 uint64
- R17 uint64
- R18 uint64
+ Ps uint64
+ Pc uint64
+ Gp uint64
+ R16 uint64
+ R17 uint64
+ R18 uint64
}
func (r *PtraceRegs) PC() uint64 {
- return r.Pc;
+ return r.Pc
}
func (r *PtraceRegs) SetPC(pc uint64) {
- r.Pc = pc;
+ r.Pc = pc
+}
+
+func PtraceGetRegs(pid int, regsout *PtraceRegs) (err error) {
+ return ptrace(PTRACE_GETREGS, pid, 0, uintptr(unsafe.Pointer(regsout)))
+}
+
+func PtraceSetRegs(pid int, regs *PtraceRegs) (err error) {
+ return ptrace(PTRACE_SETREGS, pid, 0, uintptr(unsafe.Pointer(regs)))
}
