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Etienne PerotandgVisor bot
056a85f39d
This change marks all ABI-related structs with `structs.HostLayout`, which was introduced in Go 1.23: https://pkg.go.dev/[email protected]#HostLayout This is intended to force the Go compiler to preserve the layout of the struct, removing it from the liberty of reordering fields as it sees fit. Adds a check automatically generated by our `go_library` rule wrapper which verifies this recursively for all exported structs in a package. Fixes issue #10693. PiperOrigin-RevId: 860238103
83 lines
2.0 KiB
Go
83 lines
2.0 KiB
Go
// Copyright 2019 The gVisor Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//go:build arm64
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// +build arm64
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package linux
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import (
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"structs"
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)
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const (
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//PSR bits
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PSR_MODE_EL0t = 0x00000000
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PSR_MODE_EL1t = 0x00000004
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PSR_MODE_EL1h = 0x00000005
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PSR_MODE_EL2t = 0x00000008
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PSR_MODE_EL2h = 0x00000009
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PSR_MODE_EL3t = 0x0000000c
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PSR_MODE_EL3h = 0x0000000d
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PSR_MODE_MASK = 0x0000000f
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// AArch32 CPSR bits
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PSR_MODE32_BIT = 0x00000010
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// AArch64 SPSR bits
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PSR_F_BIT = 0x00000040
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PSR_I_BIT = 0x00000080
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PSR_A_BIT = 0x00000100
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PSR_D_BIT = 0x00000200
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PSR_BTYPE_MASK = 0x00000c00
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PSR_SSBS_BIT = 0x00001000
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PSR_PAN_BIT = 0x00400000
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PSR_UAO_BIT = 0x00800000
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PSR_DIT_BIT = 0x01000000
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PSR_TCO_BIT = 0x02000000
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PSR_V_BIT = 0x10000000
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PSR_C_BIT = 0x20000000
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PSR_Z_BIT = 0x40000000
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PSR_N_BIT = 0x80000000
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)
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// PtraceRegs is the set of CPU registers exposed by ptrace. Source:
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// syscall.PtraceRegs.
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//
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// +marshal
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// +stateify savable
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type PtraceRegs struct {
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_ structs.HostLayout
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Regs [31]uint64
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Sp uint64
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Pc uint64
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Pstate uint64
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}
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// InstructionPointer returns the address of the next instruction to be
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// executed.
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func (p *PtraceRegs) InstructionPointer() uint64 {
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return p.Pc
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}
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// StackPointer returns the address of the Stack pointer.
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func (p *PtraceRegs) StackPointer() uint64 {
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return p.Sp
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}
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// SetStackPointer sets the stack pointer to the specified value.
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func (p *PtraceRegs) SetStackPointer(sp uint64) {
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p.Sp = sp
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}
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