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debug/macho: rearrange code
* group load command structs. * use hex literal for LoadCommand. Decimal number is not a proper representation for some commands. (e.g. LC_RPATH = 0x8000001c) * move Symbol struct from macho.go to file.go. Symbol is a high level representation, not in Mach-O. Change-Id: I3c69923cb464fb1211f2e766c02e1b537e0b5de2 Reviewed-on: https://go-review.googlesource.com/56130 Reviewed-by: Ian Lance Taylor <iant@golang.org> Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Hiroshi Ioka
Ian Lance Taylor
parent
3ce05d2d8d
commit
78984d3954
@ -143,6 +143,15 @@ type Dysymtab struct {
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IndirectSyms []uint32 // indices into Symtab.Syms
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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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/*
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* Mach-O reader
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*/
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@ -79,14 +79,14 @@ func (i Cpu) GoString() string { return stringName(uint32(i), cpuStrings, true)
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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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LoadCmdSegment LoadCmd = 0x1
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LoadCmdSymtab LoadCmd = 0x2
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LoadCmdThread LoadCmd = 0x4
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LoadCmdUnixThread LoadCmd = 0x5 // thread+stack
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LoadCmdDysymtab LoadCmd = 0xb
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LoadCmdDylib LoadCmd = 0xc
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LoadCmdDylinker LoadCmd = 0xf
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LoadCmdSegment64 LoadCmd = 0x19
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)
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var cmdStrings = []intName{
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@ -100,6 +100,90 @@ var cmdStrings = []intName{
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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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type (
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// A Segment32 is a 32-bit Mach-O segment load command.
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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 Segment64 is a 64-bit Mach-O segment load command.
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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 SymtabCmd is a Mach-O symbol table command.
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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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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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// A DylibCmd is a Mach-O load dynamic library command.
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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 Thread is a Mach-O thread state command.
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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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)
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const (
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FlagNoUndefs uint32 = 0x1
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FlagDyldLink uint32 = 0x4
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@ -107,46 +191,6 @@ const (
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FlagPIE uint32 = 0x200000
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)
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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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@ -178,40 +222,6 @@ type Section64 struct {
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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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@ -230,23 +240,6 @@ type Nlist64 struct {
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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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