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Update vendor folder (Delve support)
This commit is contained in:
Faissal Elamraoui
316
vendor/golang.org/x/debug/macho/macho.go
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vendored
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316
vendor/golang.org/x/debug/macho/macho.go
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vendored
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// Copyright 2009 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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// Mach-O header data structures
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// http://developer.apple.com/mac/library/documentation/DeveloperTools/Conceptual/MachORuntime/Reference/reference.html
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package macho
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import "strconv"
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// A FileHeader represents a Mach-O file header.
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type FileHeader struct {
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Magic uint32
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Cpu Cpu
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SubCpu uint32
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Type Type
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Ncmd uint32
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Cmdsz uint32
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Flags uint32
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}
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const (
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fileHeaderSize32 = 7 * 4
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fileHeaderSize64 = 8 * 4
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)
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const (
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Magic32 uint32 = 0xfeedface
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Magic64 uint32 = 0xfeedfacf
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MagicFat uint32 = 0xcafebabe
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)
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// A Type is the Mach-O file type, e.g. an object file, executable, or dynamic library.
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type Type uint32
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const (
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TypeObj Type = 1
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TypeExec Type = 2
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TypeDylib Type = 6
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TypeBundle Type = 8
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)
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// A Cpu is a Mach-O cpu type.
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type Cpu uint32
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const cpuArch64 = 0x01000000
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const (
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Cpu386 Cpu = 7
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CpuAmd64 Cpu = Cpu386 | cpuArch64
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CpuArm Cpu = 12
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CpuPpc Cpu = 18
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CpuPpc64 Cpu = CpuPpc | cpuArch64
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)
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var cpuStrings = []intName{
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{uint32(Cpu386), "Cpu386"},
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{uint32(CpuAmd64), "CpuAmd64"},
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{uint32(CpuArm), "CpuArm"},
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{uint32(CpuPpc), "CpuPpc"},
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{uint32(CpuPpc64), "CpuPpc64"},
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}
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func (i Cpu) String() string { return stringName(uint32(i), cpuStrings, false) }
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func (i Cpu) GoString() string { return stringName(uint32(i), cpuStrings, true) }
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// A LoadCmd is a Mach-O load command.
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type LoadCmd uint32
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const (
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LoadCmdSegment LoadCmd = 1
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LoadCmdSymtab LoadCmd = 2
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LoadCmdThread LoadCmd = 4
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LoadCmdUnixThread LoadCmd = 5 // thread+stack
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LoadCmdDysymtab LoadCmd = 11
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LoadCmdDylib LoadCmd = 12
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LoadCmdDylinker LoadCmd = 15
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LoadCmdSegment64 LoadCmd = 25
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)
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var cmdStrings = []intName{
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{uint32(LoadCmdSegment), "LoadCmdSegment"},
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{uint32(LoadCmdThread), "LoadCmdThread"},
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{uint32(LoadCmdUnixThread), "LoadCmdUnixThread"},
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{uint32(LoadCmdDylib), "LoadCmdDylib"},
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{uint32(LoadCmdSegment64), "LoadCmdSegment64"},
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}
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func (i LoadCmd) String() string { return stringName(uint32(i), cmdStrings, false) }
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func (i LoadCmd) GoString() string { return stringName(uint32(i), cmdStrings, true) }
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// A Segment64 is a 64-bit Mach-O segment load command.
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type Segment64 struct {
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Cmd LoadCmd
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Len uint32
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Name [16]byte
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Addr uint64
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Memsz uint64
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Offset uint64
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Filesz uint64
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Maxprot uint32
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Prot uint32
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Nsect uint32
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Flag uint32
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}
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// A Segment32 is a 32-bit Mach-O segment load command.
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type Segment32 struct {
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Cmd LoadCmd
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Len uint32
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Name [16]byte
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Addr uint32
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Memsz uint32
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Offset uint32
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Filesz uint32
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Maxprot uint32
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Prot uint32
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Nsect uint32
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Flag uint32
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}
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// A DylibCmd is a Mach-O load dynamic library command.
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type DylibCmd struct {
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Cmd LoadCmd
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Len uint32
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Name uint32
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Time uint32
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CurrentVersion uint32
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CompatVersion uint32
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}
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// A Section32 is a 32-bit Mach-O section header.
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type Section32 struct {
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Name [16]byte
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Seg [16]byte
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Addr uint32
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Size uint32
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Offset uint32
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Align uint32
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Reloff uint32
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Nreloc uint32
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Flags uint32
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Reserve1 uint32
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Reserve2 uint32
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}
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// A Section32 is a 64-bit Mach-O section header.
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type Section64 struct {
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Name [16]byte
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Seg [16]byte
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Addr uint64
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Size uint64
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Offset uint32
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Align uint32
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Reloff uint32
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Nreloc uint32
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Flags uint32
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Reserve1 uint32
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Reserve2 uint32
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Reserve3 uint32
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}
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// A SymtabCmd is a Mach-O symbol table command.
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type SymtabCmd struct {
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Cmd LoadCmd
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Len uint32
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Symoff uint32
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Nsyms uint32
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Stroff uint32
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Strsize uint32
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}
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// A DysymtabCmd is a Mach-O dynamic symbol table command.
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type DysymtabCmd struct {
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Cmd LoadCmd
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Len uint32
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Ilocalsym uint32
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Nlocalsym uint32
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Iextdefsym uint32
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Nextdefsym uint32
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Iundefsym uint32
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Nundefsym uint32
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Tocoffset uint32
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Ntoc uint32
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Modtaboff uint32
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Nmodtab uint32
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Extrefsymoff uint32
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Nextrefsyms uint32
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Indirectsymoff uint32
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Nindirectsyms uint32
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Extreloff uint32
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Nextrel uint32
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Locreloff uint32
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Nlocrel uint32
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}
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// An Nlist32 is a Mach-O 32-bit symbol table entry.
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type Nlist32 struct {
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Name uint32
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Type uint8
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Sect uint8
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Desc uint16
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Value uint32
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}
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// An Nlist64 is a Mach-O 64-bit symbol table entry.
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type Nlist64 struct {
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Name uint32
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Type uint8
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Sect uint8
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Desc uint16
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Value uint64
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}
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// A Symbol is a Mach-O 32-bit or 64-bit symbol table entry.
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type Symbol struct {
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Name string
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Type uint8
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Sect uint8
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Desc uint16
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Value uint64
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}
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// A Thread is a Mach-O thread state command.
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type Thread struct {
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Cmd LoadCmd
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Len uint32
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Type uint32
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Data []uint32
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}
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// Regs386 is the Mach-O 386 register structure.
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type Regs386 struct {
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AX uint32
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BX uint32
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CX uint32
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DX uint32
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DI uint32
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SI uint32
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BP uint32
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SP uint32
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SS uint32
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FLAGS uint32
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IP uint32
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CS uint32
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DS uint32
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ES uint32
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FS uint32
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GS uint32
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}
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// RegsAMD64 is the Mach-O AMD64 register structure.
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type RegsAMD64 struct {
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AX uint64
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BX uint64
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CX uint64
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DX uint64
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DI uint64
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SI uint64
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BP uint64
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SP uint64
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R8 uint64
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R9 uint64
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R10 uint64
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R11 uint64
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R12 uint64
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R13 uint64
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R14 uint64
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R15 uint64
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IP uint64
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FLAGS uint64
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CS uint64
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FS uint64
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GS uint64
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}
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type intName struct {
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i uint32
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s string
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}
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func stringName(i uint32, names []intName, goSyntax bool) string {
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for _, n := range names {
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if n.i == i {
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if goSyntax {
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return "macho." + n.s
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}
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return n.s
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}
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}
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return strconv.FormatUint(uint64(i), 10)
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}
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func flagName(i uint32, names []intName, goSyntax bool) string {
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s := ""
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for _, n := range names {
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if n.i&i == n.i {
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if len(s) > 0 {
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s += "+"
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}
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if goSyntax {
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s += "macho."
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}
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s += n.s
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i -= n.i
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}
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}
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if len(s) == 0 {
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return "0x" + strconv.FormatUint(uint64(i), 16)
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}
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if i != 0 {
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s += "+0x" + strconv.FormatUint(uint64(i), 16)
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}
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return s
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}
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