github.com/SagerNet/gvisor@v0.0.0-20210707092255-7731c139d75c/pkg/abi/linux/ptrace_arm64.go (about)

     1  // Copyright 2019 The gVisor Authors.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  // +build arm64
    16  
    17  package linux
    18  
    19  // PtraceRegs is the set of CPU registers exposed by ptrace. Source:
    20  // syscall.PtraceRegs.
    21  //
    22  // +marshal
    23  // +stateify savable
    24  type PtraceRegs struct {
    25  	Regs   [31]uint64
    26  	Sp     uint64
    27  	Pc     uint64
    28  	Pstate uint64
    29  }
    30  
    31  // InstructionPointer returns the address of the next instruction to be
    32  // executed.
    33  func (p *PtraceRegs) InstructionPointer() uint64 {
    34  	return p.Pc
    35  }
    36  
    37  // StackPointer returns the address of the Stack pointer.
    38  func (p *PtraceRegs) StackPointer() uint64 {
    39  	return p.Sp
    40  }
    41  
    42  // SetStackPointer sets the stack pointer to the specified value.
    43  func (p *PtraceRegs) SetStackPointer(sp uint64) {
    44  	p.Sp = sp
    45  }