50 lines
1.9 KiB
Go
50 lines
1.9 KiB
Go
// syscall_aix_ppc64.go -- AIX 64-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]uint64
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Iar uint64
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Msr uint64
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Cr uint64
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Lr uint64
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Ctr uint64
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Xer uint64
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}
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func (r *PtraceRegs) PC() uint64 { return r.Iar }
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func (r *PtraceRegs) SetPC(pc uint64) { r.Iar = pc }
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func PtraceGetRegs(pid int, regsout *PtraceRegs) (err error) {
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ptrace64(_PT_REGSET, int64(pid), int64(uintptr(unsafe.Pointer(®sout.Gpr[0]))), 0, 0)
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ptrace64(_PT_READ_GPR, int64(pid), 128, 0, uintptr(unsafe.Pointer(®sout.Iar)))
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ptrace64(_PT_READ_GPR, int64(pid), 129, 0, uintptr(unsafe.Pointer(®sout.Msr)))
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ptrace64(_PT_READ_GPR, int64(pid), 130, 0, uintptr(unsafe.Pointer(®sout.Cr)))
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ptrace64(_PT_READ_GPR, int64(pid), 131, 0, uintptr(unsafe.Pointer(®sout.Lr)))
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ptrace64(_PT_READ_GPR, int64(pid), 132, 0, uintptr(unsafe.Pointer(®sout.Ctr)))
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ptrace64(_PT_READ_GPR, int64(pid), 133, 0, uintptr(unsafe.Pointer(®sout.Xer)))
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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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ptrace64(_PT_WRITE_GPR, int64(pid), int64(i), 0, uintptr(unsafe.Pointer(®s.Gpr[i])))
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}
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ptrace64(_PT_WRITE_GPR, int64(pid), 128, 0, uintptr(unsafe.Pointer(®s.Iar)))
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ptrace64(_PT_WRITE_GPR, int64(pid), 129, 0, uintptr(unsafe.Pointer(®s.Msr)))
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ptrace64(_PT_WRITE_GPR, int64(pid), 130, 0, uintptr(unsafe.Pointer(®s.Cr)))
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ptrace64(_PT_WRITE_GPR, int64(pid), 131, 0, uintptr(unsafe.Pointer(®s.Lr)))
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ptrace64(_PT_WRITE_GPR, int64(pid), 132, 0, uintptr(unsafe.Pointer(®s.Ctr)))
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ptrace64(_PT_WRITE_GPR, int64(pid), 133, 0, uintptr(unsafe.Pointer(®s.Xer)))
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return nil
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}
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