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// Copyright 2019 The gVisor Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//go:build arm64
// +build arm64
package linux
const (
//PSR bits
PSR_MODE_EL0t = 0x00000000
PSR_MODE_EL1t = 0x00000004
PSR_MODE_EL1h = 0x00000005
PSR_MODE_EL2t = 0x00000008
PSR_MODE_EL2h = 0x00000009
PSR_MODE_EL3t = 0x0000000c
PSR_MODE_EL3h = 0x0000000d
PSR_MODE_MASK = 0x0000000f
// AArch32 CPSR bits
PSR_MODE32_BIT = 0x00000010
// AArch64 SPSR bits
PSR_F_BIT = 0x00000040
PSR_I_BIT = 0x00000080
PSR_A_BIT = 0x00000100
PSR_D_BIT = 0x00000200
PSR_BTYPE_MASK = 0x00000c00
PSR_SSBS_BIT = 0x00001000
PSR_PAN_BIT = 0x00400000
PSR_UAO_BIT = 0x00800000
PSR_DIT_BIT = 0x01000000
PSR_TCO_BIT = 0x02000000
PSR_V_BIT = 0x10000000
PSR_C_BIT = 0x20000000
PSR_Z_BIT = 0x40000000
PSR_N_BIT = 0x80000000
)
// PtraceRegs is the set of CPU registers exposed by ptrace. Source:
// syscall.PtraceRegs.
//
// +marshal
// +stateify savable
type PtraceRegs struct {
Regs [31]uint64
Sp uint64
Pc uint64
Pstate uint64
}
// InstructionPointer returns the address of the next instruction to be
// executed.
func (p *PtraceRegs) InstructionPointer() uint64 {
return p.Pc
}
// StackPointer returns the address of the Stack pointer.
func (p *PtraceRegs) StackPointer() uint64 {
return p.Sp
}
// SetStackPointer sets the stack pointer to the specified value.
func (p *PtraceRegs) SetStackPointer(sp uint64) {
p.Sp = sp
}
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