51 lines
1.3 KiB
Go
51 lines
1.3 KiB
Go
// syscall_linux_s390x.go -- GNU/Linux s390x specific support
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// Copyright 2014 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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// The PtraceRegs struct generated for go looks like this:
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//
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// type PtraceRegs struct
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// {
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// Psw _psw_t;
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// Gprs [15+1]uint64;
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// Acrs [15+1]uint32;
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// Orig_gpr2 uint64;
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// Fp_regs _s390_fp_regs;
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// Per_info _per_struct;
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// Ieee_instruction_pointer uint64;
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// }
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//
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// The GETREGSET/SETREGSET ptrace commands on S/390 only read/write
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// the content up to Orig_gpr2. Hence, we use
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// PEEKUSR_AREA/POKEUSR_AREA like GDB does.
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package syscall
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import "unsafe"
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func (r *PtraceRegs) PC() uint64 { return r.Psw.addr }
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func (r *PtraceRegs) SetPC(pc uint64) { r.Psw.addr = pc }
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func PtraceGetRegs(pid int, regs *PtraceRegs) (err error) {
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parea := _ptrace_area{
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_sizeof_ptrace_area,
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0,
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uint64(uintptr(unsafe.Pointer(regs))),
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}
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return ptrace(PTRACE_PEEKUSR_AREA, pid, uintptr(unsafe.Pointer(&parea)), 0)
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}
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func PtraceSetRegs(pid int, regs *PtraceRegs) (err error) {
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parea := _ptrace_area{
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_sizeof_ptrace_area,
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0,
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uint64(uintptr(unsafe.Pointer(regs))),
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}
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return ptrace(PTRACE_POKEUSR_AREA, pid, uintptr(unsafe.Pointer(&parea)), 0)
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}
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func rawVforkSyscall(trap, a1 uintptr) (r1 uintptr, err Errno)
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