blob: 82388cad14028a0573f08544dee59aff9a3d0c01 [file] [log] [blame]
// syscall_aix_ppc64.go -- AIX 64-bit specific support
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package syscall
import "unsafe"
// AIX does not define a specific structure but instead uses separate
// ptrace calls for the different registers.
type PtraceRegs struct {
Gpr [32]uint64
Iar uint64
Msr uint64
Cr uint64
Lr uint64
Ctr uint64
Xer uint64
}
func (r *PtraceRegs) PC() uint64 { return r.Iar }
func (r *PtraceRegs) SetPC(pc uint64) { r.Iar = pc }
func PtraceGetRegs(pid int, regsout *PtraceRegs) (err error) {
ptrace64(_PT_REGSET, int64(pid), int64(uintptr(unsafe.Pointer(&regsout.Gpr[0]))), 0, 0)
ptrace64(_PT_READ_GPR, int64(pid), 128, 0, uintptr(unsafe.Pointer(&regsout.Iar)))
ptrace64(_PT_READ_GPR, int64(pid), 129, 0, uintptr(unsafe.Pointer(&regsout.Msr)))
ptrace64(_PT_READ_GPR, int64(pid), 130, 0, uintptr(unsafe.Pointer(&regsout.Cr)))
ptrace64(_PT_READ_GPR, int64(pid), 131, 0, uintptr(unsafe.Pointer(&regsout.Lr)))
ptrace64(_PT_READ_GPR, int64(pid), 132, 0, uintptr(unsafe.Pointer(&regsout.Ctr)))
ptrace64(_PT_READ_GPR, int64(pid), 133, 0, uintptr(unsafe.Pointer(&regsout.Xer)))
return nil
}
func PtraceSetRegs(pid int, regs *PtraceRegs) (err error) {
for i := 0; i < len(regs.Gpr); i++ {
ptrace64(_PT_WRITE_GPR, int64(pid), int64(i), 0, uintptr(unsafe.Pointer(&regs.Gpr[i])))
}
ptrace64(_PT_WRITE_GPR, int64(pid), 128, 0, uintptr(unsafe.Pointer(&regs.Iar)))
ptrace64(_PT_WRITE_GPR, int64(pid), 129, 0, uintptr(unsafe.Pointer(&regs.Msr)))
ptrace64(_PT_WRITE_GPR, int64(pid), 130, 0, uintptr(unsafe.Pointer(&regs.Cr)))
ptrace64(_PT_WRITE_GPR, int64(pid), 131, 0, uintptr(unsafe.Pointer(&regs.Lr)))
ptrace64(_PT_WRITE_GPR, int64(pid), 132, 0, uintptr(unsafe.Pointer(&regs.Ctr)))
ptrace64(_PT_WRITE_GPR, int64(pid), 133, 0, uintptr(unsafe.Pointer(&regs.Xer)))
return nil
}