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50 lines
1.6 KiB
Go
50 lines
1.6 KiB
Go
// syscall_aix_ppc.go -- AIX 32-bit specific support
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// Copyright 2017 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package syscall
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import "unsafe"
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// AIX does not define a specific structure but instead uses separate
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// ptrace calls for the different registers.
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type PtraceRegs struct {
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Gpr [32]uint32
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Iar uint32
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Msr uint32
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Cr uint32
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Lr uint32
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Ctr uint32
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Xer uint32
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}
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func (r *PtraceRegs) PC() uint64 { return uint64(r.Iar) }
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func (r *PtraceRegs) SetPC(pc uint64) { r.Iar = uint32(pc) }
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func PtraceGetRegs(pid int, regsout *PtraceRegs) (err error) {
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ptrace(_PT_REGSET, pid, uintptr(unsafe.Pointer(®sout.Gpr[0])), 0, 0)
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regsout.Iar = uint32(ptrace(_PT_READ_GPR, pid, 128, 0, 0))
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regsout.Msr = uint32(ptrace(_PT_READ_GPR, pid, 129, 0, 0))
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regsout.Cr = uint32(ptrace(_PT_READ_GPR, pid, 130, 0, 0))
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regsout.Lr = uint32(ptrace(_PT_READ_GPR, pid, 131, 0, 0))
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regsout.Ctr = uint32(ptrace(_PT_READ_GPR, pid, 132, 0, 0))
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regsout.Xer = uint32(ptrace(_PT_READ_GPR, pid, 133, 0, 0))
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return nil
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}
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func PtraceSetRegs(pid int, regs *PtraceRegs) (err error) {
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for i := 0; i < len(regs.Gpr); i++ {
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ptrace(_PT_WRITE_GPR, pid, uintptr(i), int(regs.Gpr[i]), 0)
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}
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ptrace(_PT_WRITE_GPR, pid, 128, int(regs.Iar), 0)
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ptrace(_PT_WRITE_GPR, pid, 129, int(regs.Msr), 0)
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ptrace(_PT_WRITE_GPR, pid, 130, int(regs.Cr), 0)
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ptrace(_PT_WRITE_GPR, pid, 131, int(regs.Lr), 0)
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ptrace(_PT_WRITE_GPR, pid, 132, int(regs.Ctr), 0)
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ptrace(_PT_WRITE_GPR, pid, 133, int(regs.Xer), 0)
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return nil
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}
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