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path: root/src/cmd/link/internal/ld/elf.go
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Diffstat (limited to 'src/cmd/link/internal/ld/elf.go')
-rw-r--r--src/cmd/link/internal/ld/elf.go1143
1 files changed, 405 insertions, 738 deletions
diff --git a/src/cmd/link/internal/ld/elf.go b/src/cmd/link/internal/ld/elf.go
index f5a2f899fc..37b2dc640d 100644
--- a/src/cmd/link/internal/ld/elf.go
+++ b/src/cmd/link/internal/ld/elf.go
@@ -10,6 +10,7 @@ import (
"cmd/link/internal/loader"
"cmd/link/internal/sym"
"crypto/sha1"
+ "debug/elf"
"encoding/binary"
"encoding/hex"
"fmt"
@@ -75,255 +76,6 @@ type elfNote struct {
nType uint32
}
-const (
- EI_MAG0 = 0
- EI_MAG1 = 1
- EI_MAG2 = 2
- EI_MAG3 = 3
- EI_CLASS = 4
- EI_DATA = 5
- EI_VERSION = 6
- EI_OSABI = 7
- EI_ABIVERSION = 8
- OLD_EI_BRAND = 8
- EI_PAD = 9
- EI_NIDENT = 16
- ELFMAG0 = 0x7f
- ELFMAG1 = 'E'
- ELFMAG2 = 'L'
- ELFMAG3 = 'F'
- SELFMAG = 4
- EV_NONE = 0
- EV_CURRENT = 1
- ELFCLASSNONE = 0
- ELFCLASS32 = 1
- ELFCLASS64 = 2
- ELFDATANONE = 0
- ELFDATA2LSB = 1
- ELFDATA2MSB = 2
- ELFOSABI_NONE = 0
- ELFOSABI_HPUX = 1
- ELFOSABI_NETBSD = 2
- ELFOSABI_LINUX = 3
- ELFOSABI_HURD = 4
- ELFOSABI_86OPEN = 5
- ELFOSABI_SOLARIS = 6
- ELFOSABI_AIX = 7
- ELFOSABI_IRIX = 8
- ELFOSABI_FREEBSD = 9
- ELFOSABI_TRU64 = 10
- ELFOSABI_MODESTO = 11
- ELFOSABI_OPENBSD = 12
- ELFOSABI_OPENVMS = 13
- ELFOSABI_NSK = 14
- ELFOSABI_ARM = 97
- ELFOSABI_STANDALONE = 255
- ELFOSABI_SYSV = ELFOSABI_NONE
- ELFOSABI_MONTEREY = ELFOSABI_AIX
- ET_NONE = 0
- ET_REL = 1
- ET_EXEC = 2
- ET_DYN = 3
- ET_CORE = 4
- ET_LOOS = 0xfe00
- ET_HIOS = 0xfeff
- ET_LOPROC = 0xff00
- ET_HIPROC = 0xffff
- EM_NONE = 0
- EM_M32 = 1
- EM_SPARC = 2
- EM_386 = 3
- EM_68K = 4
- EM_88K = 5
- EM_860 = 7
- EM_MIPS = 8
- EM_S370 = 9
- EM_MIPS_RS3_LE = 10
- EM_PARISC = 15
- EM_VPP500 = 17
- EM_SPARC32PLUS = 18
- EM_960 = 19
- EM_PPC = 20
- EM_PPC64 = 21
- EM_S390 = 22
- EM_V800 = 36
- EM_FR20 = 37
- EM_RH32 = 38
- EM_RCE = 39
- EM_ARM = 40
- EM_SH = 42
- EM_SPARCV9 = 43
- EM_TRICORE = 44
- EM_ARC = 45
- EM_H8_300 = 46
- EM_H8_300H = 47
- EM_H8S = 48
- EM_H8_500 = 49
- EM_IA_64 = 50
- EM_MIPS_X = 51
- EM_COLDFIRE = 52
- EM_68HC12 = 53
- EM_MMA = 54
- EM_PCP = 55
- EM_NCPU = 56
- EM_NDR1 = 57
- EM_STARCORE = 58
- EM_ME16 = 59
- EM_ST100 = 60
- EM_TINYJ = 61
- EM_X86_64 = 62
- EM_AARCH64 = 183
- EM_486 = 6
- EM_MIPS_RS4_BE = 10
- EM_ALPHA_STD = 41
- EM_ALPHA = 0x9026
- EM_RISCV = 243
- SHN_UNDEF = 0
- SHN_LORESERVE = 0xff00
- SHN_LOPROC = 0xff00
- SHN_HIPROC = 0xff1f
- SHN_LOOS = 0xff20
- SHN_HIOS = 0xff3f
- SHN_ABS = 0xfff1
- SHN_COMMON = 0xfff2
- SHN_XINDEX = 0xffff
- SHN_HIRESERVE = 0xffff
- SHT_NULL = 0
- SHT_PROGBITS = 1
- SHT_SYMTAB = 2
- SHT_STRTAB = 3
- SHT_RELA = 4
- SHT_HASH = 5
- SHT_DYNAMIC = 6
- SHT_NOTE = 7
- SHT_NOBITS = 8
- SHT_REL = 9
- SHT_SHLIB = 10
- SHT_DYNSYM = 11
- SHT_INIT_ARRAY = 14
- SHT_FINI_ARRAY = 15
- SHT_PREINIT_ARRAY = 16
- SHT_GROUP = 17
- SHT_SYMTAB_SHNDX = 18
- SHT_LOOS = 0x60000000
- SHT_HIOS = 0x6fffffff
- SHT_GNU_VERDEF = 0x6ffffffd
- SHT_GNU_VERNEED = 0x6ffffffe
- SHT_GNU_VERSYM = 0x6fffffff
- SHT_LOPROC = 0x70000000
- SHT_ARM_ATTRIBUTES = 0x70000003
- SHT_HIPROC = 0x7fffffff
- SHT_LOUSER = 0x80000000
- SHT_HIUSER = 0xffffffff
- SHF_WRITE = 0x1
- SHF_ALLOC = 0x2
- SHF_EXECINSTR = 0x4
- SHF_MERGE = 0x10
- SHF_STRINGS = 0x20
- SHF_INFO_LINK = 0x40
- SHF_LINK_ORDER = 0x80
- SHF_OS_NONCONFORMING = 0x100
- SHF_GROUP = 0x200
- SHF_TLS = 0x400
- SHF_MASKOS = 0x0ff00000
- SHF_MASKPROC = 0xf0000000
- PT_NULL = 0
- PT_LOAD = 1
- PT_DYNAMIC = 2
- PT_INTERP = 3
- PT_NOTE = 4
- PT_SHLIB = 5
- PT_PHDR = 6
- PT_TLS = 7
- PT_LOOS = 0x60000000
- PT_HIOS = 0x6fffffff
- PT_LOPROC = 0x70000000
- PT_HIPROC = 0x7fffffff
- PT_GNU_STACK = 0x6474e551
- PT_GNU_RELRO = 0x6474e552
- PT_PAX_FLAGS = 0x65041580
- PT_SUNWSTACK = 0x6ffffffb
- PF_X = 0x1
- PF_W = 0x2
- PF_R = 0x4
- PF_MASKOS = 0x0ff00000
- PF_MASKPROC = 0xf0000000
- DT_NULL = 0
- DT_NEEDED = 1
- DT_PLTRELSZ = 2
- DT_PLTGOT = 3
- DT_HASH = 4
- DT_STRTAB = 5
- DT_SYMTAB = 6
- DT_RELA = 7
- DT_RELASZ = 8
- DT_RELAENT = 9
- DT_STRSZ = 10
- DT_SYMENT = 11
- DT_INIT = 12
- DT_FINI = 13
- DT_SONAME = 14
- DT_RPATH = 15
- DT_SYMBOLIC = 16
- DT_REL = 17
- DT_RELSZ = 18
- DT_RELENT = 19
- DT_PLTREL = 20
- DT_DEBUG = 21
- DT_TEXTREL = 22
- DT_JMPREL = 23
- DT_BIND_NOW = 24
- DT_INIT_ARRAY = 25
- DT_FINI_ARRAY = 26
- DT_INIT_ARRAYSZ = 27
- DT_FINI_ARRAYSZ = 28
- DT_RUNPATH = 29
- DT_FLAGS = 30
- DT_ENCODING = 32
- DT_PREINIT_ARRAY = 32
- DT_PREINIT_ARRAYSZ = 33
- DT_LOOS = 0x6000000d
- DT_HIOS = 0x6ffff000
- DT_LOPROC = 0x70000000
- DT_HIPROC = 0x7fffffff
- DT_VERNEED = 0x6ffffffe
- DT_VERNEEDNUM = 0x6fffffff
- DT_VERSYM = 0x6ffffff0
- DT_PPC64_GLINK = DT_LOPROC + 0
- DT_PPC64_OPT = DT_LOPROC + 3
- DF_ORIGIN = 0x0001
- DF_SYMBOLIC = 0x0002
- DF_TEXTREL = 0x0004
- DF_BIND_NOW = 0x0008
- DF_STATIC_TLS = 0x0010
- NT_PRSTATUS = 1
- NT_FPREGSET = 2
- NT_PRPSINFO = 3
- STB_LOCAL = 0
- STB_GLOBAL = 1
- STB_WEAK = 2
- STB_LOOS = 10
- STB_HIOS = 12
- STB_LOPROC = 13
- STB_HIPROC = 15
- STT_NOTYPE = 0
- STT_OBJECT = 1
- STT_FUNC = 2
- STT_SECTION = 3
- STT_FILE = 4
- STT_COMMON = 5
- STT_TLS = 6
- STT_LOOS = 10
- STT_HIOS = 12
- STT_LOPROC = 13
- STT_HIPROC = 15
- STV_DEFAULT = 0x0
- STV_INTERNAL = 0x1
- STV_HIDDEN = 0x2
- STV_PROTECTED = 0x3
- STN_UNDEF = 0
-)
-
/* For accessing the fields of r_info. */
/* For constructing r_info from field values. */
@@ -348,53 +100,20 @@ const (
/*
* ELF header.
*/
-type ElfEhdr struct {
- ident [EI_NIDENT]uint8
- type_ uint16
- machine uint16
- version uint32
- entry uint64
- phoff uint64
- shoff uint64
- flags uint32
- ehsize uint16
- phentsize uint16
- phnum uint16
- shentsize uint16
- shnum uint16
- shstrndx uint16
-}
+type ElfEhdr elf.Header64
/*
* Section header.
*/
type ElfShdr struct {
- name uint32
- type_ uint32
- flags uint64
- addr uint64
- off uint64
- size uint64
- link uint32
- info uint32
- addralign uint64
- entsize uint64
- shnum int
+ elf.Section64
+ shnum elf.SectionIndex
}
/*
* Program header.
*/
-type ElfPhdr struct {
- type_ uint32
- flags uint32
- off uint64
- vaddr uint64
- paddr uint64
- filesz uint64
- memsz uint64
- align uint64
-}
+type ElfPhdr elf.ProgHeader
/* For accessing the fields of r_info. */
@@ -497,22 +216,25 @@ func Elfinit(ctxt *Link) {
// 64-bit architectures
case sys.PPC64, sys.S390X:
if ctxt.Arch.ByteOrder == binary.BigEndian {
- ehdr.flags = 1 /* Version 1 ABI */
+ ehdr.Flags = 1 /* Version 1 ABI */
} else {
- ehdr.flags = 2 /* Version 2 ABI */
+ ehdr.Flags = 2 /* Version 2 ABI */
}
fallthrough
case sys.AMD64, sys.ARM64, sys.MIPS64, sys.RISCV64:
if ctxt.Arch.Family == sys.MIPS64 {
- ehdr.flags = 0x20000004 /* MIPS 3 CPIC */
+ ehdr.Flags = 0x20000004 /* MIPS 3 CPIC */
+ }
+ if ctxt.Arch.Family == sys.RISCV64 {
+ ehdr.Flags = 0x4 /* RISCV Float ABI Double */
}
elf64 = true
- ehdr.phoff = ELF64HDRSIZE /* Must be ELF64HDRSIZE: first PHdr must follow ELF header */
- ehdr.shoff = ELF64HDRSIZE /* Will move as we add PHeaders */
- ehdr.ehsize = ELF64HDRSIZE /* Must be ELF64HDRSIZE */
- ehdr.phentsize = ELF64PHDRSIZE /* Must be ELF64PHDRSIZE */
- ehdr.shentsize = ELF64SHDRSIZE /* Must be ELF64SHDRSIZE */
+ ehdr.Phoff = ELF64HDRSIZE /* Must be ELF64HDRSIZE: first PHdr must follow ELF header */
+ ehdr.Shoff = ELF64HDRSIZE /* Will move as we add PHeaders */
+ ehdr.Ehsize = ELF64HDRSIZE /* Must be ELF64HDRSIZE */
+ ehdr.Phentsize = ELF64PHDRSIZE /* Must be ELF64PHDRSIZE */
+ ehdr.Shentsize = ELF64SHDRSIZE /* Must be ELF64SHDRSIZE */
// 32-bit architectures
case sys.ARM, sys.MIPS:
@@ -527,19 +249,19 @@ func Elfinit(ctxt *Link) {
// produced by the host C compiler. parseArmAttributes in
// ldelf.go reads that information and updates this field as
// appropriate.
- ehdr.flags = 0x5000002 // has entry point, Version5 EABI
+ ehdr.Flags = 0x5000002 // has entry point, Version5 EABI
}
} else if ctxt.Arch.Family == sys.MIPS {
- ehdr.flags = 0x50001004 /* MIPS 32 CPIC O32*/
+ ehdr.Flags = 0x50001004 /* MIPS 32 CPIC O32*/
}
fallthrough
default:
- ehdr.phoff = ELF32HDRSIZE
+ ehdr.Phoff = ELF32HDRSIZE
/* Must be ELF32HDRSIZE: first PHdr must follow ELF header */
- ehdr.shoff = ELF32HDRSIZE /* Will move as we add PHeaders */
- ehdr.ehsize = ELF32HDRSIZE /* Must be ELF32HDRSIZE */
- ehdr.phentsize = ELF32PHDRSIZE /* Must be ELF32PHDRSIZE */
- ehdr.shentsize = ELF32SHDRSIZE /* Must be ELF32SHDRSIZE */
+ ehdr.Shoff = ELF32HDRSIZE /* Will move as we add PHeaders */
+ ehdr.Ehsize = ELF32HDRSIZE /* Must be ELF32HDRSIZE */
+ ehdr.Phentsize = ELF32PHDRSIZE /* Must be ELF32PHDRSIZE */
+ ehdr.Shentsize = ELF32SHDRSIZE /* Must be ELF32SHDRSIZE */
}
}
@@ -549,83 +271,83 @@ func Elfinit(ctxt *Link) {
// but buggy ELF loaders like the one in some
// versions of QEMU and UPX won't.
func fixElfPhdr(e *ElfPhdr) {
- frag := int(e.vaddr & (e.align - 1))
+ frag := int(e.Vaddr & (e.Align - 1))
- e.off -= uint64(frag)
- e.vaddr -= uint64(frag)
- e.paddr -= uint64(frag)
- e.filesz += uint64(frag)
- e.memsz += uint64(frag)
+ e.Off -= uint64(frag)
+ e.Vaddr -= uint64(frag)
+ e.Paddr -= uint64(frag)
+ e.Filesz += uint64(frag)
+ e.Memsz += uint64(frag)
}
func elf64phdr(out *OutBuf, e *ElfPhdr) {
- if e.type_ == PT_LOAD {
+ if e.Type == elf.PT_LOAD {
fixElfPhdr(e)
}
- out.Write32(e.type_)
- out.Write32(e.flags)
- out.Write64(e.off)
- out.Write64(e.vaddr)
- out.Write64(e.paddr)
- out.Write64(e.filesz)
- out.Write64(e.memsz)
- out.Write64(e.align)
+ out.Write32(uint32(e.Type))
+ out.Write32(uint32(e.Flags))
+ out.Write64(e.Off)
+ out.Write64(e.Vaddr)
+ out.Write64(e.Paddr)
+ out.Write64(e.Filesz)
+ out.Write64(e.Memsz)
+ out.Write64(e.Align)
}
func elf32phdr(out *OutBuf, e *ElfPhdr) {
- if e.type_ == PT_LOAD {
+ if e.Type == elf.PT_LOAD {
fixElfPhdr(e)
}
- out.Write32(e.type_)
- out.Write32(uint32(e.off))
- out.Write32(uint32(e.vaddr))
- out.Write32(uint32(e.paddr))
- out.Write32(uint32(e.filesz))
- out.Write32(uint32(e.memsz))
- out.Write32(e.flags)
- out.Write32(uint32(e.align))
+ out.Write32(uint32(e.Type))
+ out.Write32(uint32(e.Off))
+ out.Write32(uint32(e.Vaddr))
+ out.Write32(uint32(e.Paddr))
+ out.Write32(uint32(e.Filesz))
+ out.Write32(uint32(e.Memsz))
+ out.Write32(uint32(e.Flags))
+ out.Write32(uint32(e.Align))
}
func elf64shdr(out *OutBuf, e *ElfShdr) {
- out.Write32(e.name)
- out.Write32(e.type_)
- out.Write64(e.flags)
- out.Write64(e.addr)
- out.Write64(e.off)
- out.Write64(e.size)
- out.Write32(e.link)
- out.Write32(e.info)
- out.Write64(e.addralign)
- out.Write64(e.entsize)
+ out.Write32(e.Name)
+ out.Write32(uint32(e.Type))
+ out.Write64(uint64(e.Flags))
+ out.Write64(e.Addr)
+ out.Write64(e.Off)
+ out.Write64(e.Size)
+ out.Write32(e.Link)
+ out.Write32(e.Info)
+ out.Write64(e.Addralign)
+ out.Write64(e.Entsize)
}
func elf32shdr(out *OutBuf, e *ElfShdr) {
- out.Write32(e.name)
- out.Write32(e.type_)
- out.Write32(uint32(e.flags))
- out.Write32(uint32(e.addr))
- out.Write32(uint32(e.off))
- out.Write32(uint32(e.size))
- out.Write32(e.link)
- out.Write32(e.info)
- out.Write32(uint32(e.addralign))
- out.Write32(uint32(e.entsize))
+ out.Write32(e.Name)
+ out.Write32(uint32(e.Type))
+ out.Write32(uint32(e.Flags))
+ out.Write32(uint32(e.Addr))
+ out.Write32(uint32(e.Off))
+ out.Write32(uint32(e.Size))
+ out.Write32(e.Link)
+ out.Write32(e.Info)
+ out.Write32(uint32(e.Addralign))
+ out.Write32(uint32(e.Entsize))
}
func elfwriteshdrs(out *OutBuf) uint32 {
if elf64 {
- for i := 0; i < int(ehdr.shnum); i++ {
+ for i := 0; i < int(ehdr.Shnum); i++ {
elf64shdr(out, shdr[i])
}
- return uint32(ehdr.shnum) * ELF64SHDRSIZE
+ return uint32(ehdr.Shnum) * ELF64SHDRSIZE
}
- for i := 0; i < int(ehdr.shnum); i++ {
+ for i := 0; i < int(ehdr.Shnum); i++ {
elf32shdr(out, shdr[i])
}
- return uint32(ehdr.shnum) * ELF32SHDRSIZE
+ return uint32(ehdr.Shnum) * ELF32SHDRSIZE
}
func elfsetstring(ctxt *Link, s loader.Sym, str string, off int) {
@@ -641,43 +363,43 @@ func elfsetstring(ctxt *Link, s loader.Sym, str string, off int) {
func elfwritephdrs(out *OutBuf) uint32 {
if elf64 {
- for i := 0; i < int(ehdr.phnum); i++ {
+ for i := 0; i < int(ehdr.Phnum); i++ {
elf64phdr(out, phdr[i])
}
- return uint32(ehdr.phnum) * ELF64PHDRSIZE
+ return uint32(ehdr.Phnum) * ELF64PHDRSIZE
}
- for i := 0; i < int(ehdr.phnum); i++ {
+ for i := 0; i < int(ehdr.Phnum); i++ {
elf32phdr(out, phdr[i])
}
- return uint32(ehdr.phnum) * ELF32PHDRSIZE
+ return uint32(ehdr.Phnum) * ELF32PHDRSIZE
}
func newElfPhdr() *ElfPhdr {
e := new(ElfPhdr)
- if ehdr.phnum >= NSECT {
+ if ehdr.Phnum >= NSECT {
Errorf(nil, "too many phdrs")
} else {
- phdr[ehdr.phnum] = e
- ehdr.phnum++
+ phdr[ehdr.Phnum] = e
+ ehdr.Phnum++
}
if elf64 {
- ehdr.shoff += ELF64PHDRSIZE
+ ehdr.Shoff += ELF64PHDRSIZE
} else {
- ehdr.shoff += ELF32PHDRSIZE
+ ehdr.Shoff += ELF32PHDRSIZE
}
return e
}
func newElfShdr(name int64) *ElfShdr {
e := new(ElfShdr)
- e.name = uint32(name)
- e.shnum = int(ehdr.shnum)
- if ehdr.shnum >= NSECT {
+ e.Name = uint32(name)
+ e.shnum = elf.SectionIndex(ehdr.Shnum)
+ if ehdr.Shnum >= NSECT {
Errorf(nil, "too many shdrs")
} else {
- shdr[ehdr.shnum] = e
- ehdr.shnum++
+ shdr[ehdr.Shnum] = e
+ ehdr.Shnum++
}
return e
@@ -688,38 +410,38 @@ func getElfEhdr() *ElfEhdr {
}
func elf64writehdr(out *OutBuf) uint32 {
- out.Write(ehdr.ident[:])
- out.Write16(ehdr.type_)
- out.Write16(ehdr.machine)
- out.Write32(ehdr.version)
- out.Write64(ehdr.entry)
- out.Write64(ehdr.phoff)
- out.Write64(ehdr.shoff)
- out.Write32(ehdr.flags)
- out.Write16(ehdr.ehsize)
- out.Write16(ehdr.phentsize)
- out.Write16(ehdr.phnum)
- out.Write16(ehdr.shentsize)
- out.Write16(ehdr.shnum)
- out.Write16(ehdr.shstrndx)
+ out.Write(ehdr.Ident[:])
+ out.Write16(uint16(ehdr.Type))
+ out.Write16(uint16(ehdr.Machine))
+ out.Write32(uint32(ehdr.Version))
+ out.Write64(ehdr.Entry)
+ out.Write64(ehdr.Phoff)
+ out.Write64(ehdr.Shoff)
+ out.Write32(ehdr.Flags)
+ out.Write16(ehdr.Ehsize)
+ out.Write16(ehdr.Phentsize)
+ out.Write16(ehdr.Phnum)
+ out.Write16(ehdr.Shentsize)
+ out.Write16(ehdr.Shnum)
+ out.Write16(ehdr.Shstrndx)
return ELF64HDRSIZE
}
func elf32writehdr(out *OutBuf) uint32 {
- out.Write(ehdr.ident[:])
- out.Write16(ehdr.type_)
- out.Write16(ehdr.machine)
- out.Write32(ehdr.version)
- out.Write32(uint32(ehdr.entry))
- out.Write32(uint32(ehdr.phoff))
- out.Write32(uint32(ehdr.shoff))
- out.Write32(ehdr.flags)
- out.Write16(ehdr.ehsize)
- out.Write16(ehdr.phentsize)
- out.Write16(ehdr.phnum)
- out.Write16(ehdr.shentsize)
- out.Write16(ehdr.shnum)
- out.Write16(ehdr.shstrndx)
+ out.Write(ehdr.Ident[:])
+ out.Write16(uint16(ehdr.Type))
+ out.Write16(uint16(ehdr.Machine))
+ out.Write32(uint32(ehdr.Version))
+ out.Write32(uint32(ehdr.Entry))
+ out.Write32(uint32(ehdr.Phoff))
+ out.Write32(uint32(ehdr.Shoff))
+ out.Write32(ehdr.Flags)
+ out.Write16(ehdr.Ehsize)
+ out.Write16(ehdr.Phentsize)
+ out.Write16(ehdr.Phnum)
+ out.Write16(ehdr.Shentsize)
+ out.Write16(ehdr.Shnum)
+ out.Write16(ehdr.Shstrndx)
return ELF32HDRSIZE
}
@@ -743,11 +465,11 @@ func elfhash(name string) uint32 {
return h
}
-func elfWriteDynEntSym(ctxt *Link, s *loader.SymbolBuilder, tag int, t loader.Sym) {
+func elfWriteDynEntSym(ctxt *Link, s *loader.SymbolBuilder, tag elf.DynTag, t loader.Sym) {
Elfwritedynentsymplus(ctxt, s, tag, t, 0)
}
-func Elfwritedynent(arch *sys.Arch, s *loader.SymbolBuilder, tag int, val uint64) {
+func Elfwritedynent(arch *sys.Arch, s *loader.SymbolBuilder, tag elf.DynTag, val uint64) {
if elf64 {
s.AddUint64(arch, uint64(tag))
s.AddUint64(arch, val)
@@ -757,11 +479,11 @@ func Elfwritedynent(arch *sys.Arch, s *loader.SymbolBuilder, tag int, val uint64
}
}
-func elfwritedynentsym(ctxt *Link, s *loader.SymbolBuilder, tag int, t loader.Sym) {
+func elfwritedynentsym(ctxt *Link, s *loader.SymbolBuilder, tag elf.DynTag, t loader.Sym) {
Elfwritedynentsymplus(ctxt, s, tag, t, 0)
}
-func Elfwritedynentsymplus(ctxt *Link, s *loader.SymbolBuilder, tag int, t loader.Sym, add int64) {
+func Elfwritedynentsymplus(ctxt *Link, s *loader.SymbolBuilder, tag elf.DynTag, t loader.Sym, add int64) {
if elf64 {
s.AddUint64(ctxt.Arch, uint64(tag))
} else {
@@ -770,7 +492,7 @@ func Elfwritedynentsymplus(ctxt *Link, s *loader.SymbolBuilder, tag int, t loade
s.AddAddrPlus(ctxt.Arch, t, add)
}
-func elfwritedynentsymsize(ctxt *Link, s *loader.SymbolBuilder, tag int, t loader.Sym) {
+func elfwritedynentsymsize(ctxt *Link, s *loader.SymbolBuilder, tag elf.DynTag, t loader.Sym) {
if elf64 {
s.AddUint64(ctxt.Arch, uint64(tag))
} else {
@@ -782,30 +504,30 @@ func elfwritedynentsymsize(ctxt *Link, s *loader.SymbolBuilder, tag int, t loade
func elfinterp(sh *ElfShdr, startva uint64, resoff uint64, p string) int {
interp = p
n := len(interp) + 1
- sh.addr = startva + resoff - uint64(n)
- sh.off = resoff - uint64(n)
- sh.size = uint64(n)
+ sh.Addr = startva + resoff - uint64(n)
+ sh.Off = resoff - uint64(n)
+ sh.Size = uint64(n)
return n
}
func elfwriteinterp(out *OutBuf) int {
sh := elfshname(".interp")
- out.SeekSet(int64(sh.off))
+ out.SeekSet(int64(sh.Off))
out.WriteString(interp)
out.Write8(0)
- return int(sh.size)
+ return int(sh.Size)
}
func elfnote(sh *ElfShdr, startva uint64, resoff uint64, sz int) int {
n := 3*4 + uint64(sz) + resoff%4
- sh.type_ = SHT_NOTE
- sh.flags = SHF_ALLOC
- sh.addralign = 4
- sh.addr = startva + resoff - n
- sh.off = resoff - n
- sh.size = n - resoff%4
+ sh.Type = uint32(elf.SHT_NOTE)
+ sh.Flags = uint64(elf.SHF_ALLOC)
+ sh.Addralign = 4
+ sh.Addr = startva + resoff - n
+ sh.Off = resoff - n
+ sh.Size = n - resoff%4
return int(n)
}
@@ -814,7 +536,7 @@ func elfwritenotehdr(out *OutBuf, str string, namesz uint32, descsz uint32, tag
sh := elfshname(str)
// Write Elf_Note header.
- out.SeekSet(int64(sh.off))
+ out.SeekSet(int64(sh.Off))
out.Write32(namesz)
out.Write32(descsz)
@@ -851,7 +573,7 @@ func elfwritenetbsdsig(out *OutBuf) int {
out.Write8(0)
out.Write32(ELF_NOTE_NETBSD_VERSION)
- return int(sh.size)
+ return int(sh.Size)
}
// The race detector can't handle ASLR (address space layout randomization).
@@ -870,7 +592,7 @@ func elfwritenetbsdpax(out *OutBuf) int {
}
out.Write([]byte("PaX\x00"))
out.Write32(0x20) // 0x20 = Force disable ASLR
- return int(sh.size)
+ return int(sh.Size)
}
// OpenBSD Signature
@@ -901,7 +623,7 @@ func elfwriteopenbsdsig(out *OutBuf) int {
out.Write32(ELF_NOTE_OPENBSD_VERSION)
- return int(sh.size)
+ return int(sh.Size)
}
func addbuildinfo(val string) {
@@ -960,7 +682,7 @@ func elfwritebuildinfo(out *OutBuf) int {
var zero = make([]byte, 4)
out.Write(zero[:int(Rnd(int64(len(buildinfo)), 4)-int64(len(buildinfo)))])
- return int(sh.size)
+ return int(sh.Size)
}
func elfwritegobuildid(out *OutBuf) int {
@@ -974,7 +696,7 @@ func elfwritegobuildid(out *OutBuf) int {
var zero = make([]byte, 4)
out.Write(zero[:int(Rnd(int64(len(*flagBuildid)), 4)-int64(len(*flagBuildid)))])
- return int(sh.size)
+ return int(sh.Size)
}
// Go specific notes
@@ -1145,56 +867,56 @@ func elfdynhash(ctxt *Link) {
s = ldr.CreateSymForUpdate(".dynamic", 0)
elfverneed = nfile
if elfverneed != 0 {
- elfWriteDynEntSym(ctxt, s, DT_VERNEED, gnuVersionR.Sym())
- Elfwritedynent(ctxt.Arch, s, DT_VERNEEDNUM, uint64(nfile))
- elfWriteDynEntSym(ctxt, s, DT_VERSYM, gnuVersion.Sym())
+ elfWriteDynEntSym(ctxt, s, elf.DT_VERNEED, gnuVersionR.Sym())
+ Elfwritedynent(ctxt.Arch, s, elf.DT_VERNEEDNUM, uint64(nfile))
+ elfWriteDynEntSym(ctxt, s, elf.DT_VERSYM, gnuVersion.Sym())
}
sy := ldr.CreateSymForUpdate(elfRelType+".plt", 0)
if sy.Size() > 0 {
if elfRelType == ".rela" {
- Elfwritedynent(ctxt.Arch, s, DT_PLTREL, DT_RELA)
+ Elfwritedynent(ctxt.Arch, s, elf.DT_PLTREL, uint64(elf.DT_RELA))
} else {
- Elfwritedynent(ctxt.Arch, s, DT_PLTREL, DT_REL)
+ Elfwritedynent(ctxt.Arch, s, elf.DT_PLTREL, uint64(elf.DT_REL))
}
- elfwritedynentsymsize(ctxt, s, DT_PLTRELSZ, sy.Sym())
- elfWriteDynEntSym(ctxt, s, DT_JMPREL, sy.Sym())
+ elfwritedynentsymsize(ctxt, s, elf.DT_PLTRELSZ, sy.Sym())
+ elfWriteDynEntSym(ctxt, s, elf.DT_JMPREL, sy.Sym())
}
- Elfwritedynent(ctxt.Arch, s, DT_NULL, 0)
+ Elfwritedynent(ctxt.Arch, s, elf.DT_NULL, 0)
}
func elfphload(seg *sym.Segment) *ElfPhdr {
ph := newElfPhdr()
- ph.type_ = PT_LOAD
+ ph.Type = elf.PT_LOAD
if seg.Rwx&4 != 0 {
- ph.flags |= PF_R
+ ph.Flags |= elf.PF_R
}
if seg.Rwx&2 != 0 {
- ph.flags |= PF_W
+ ph.Flags |= elf.PF_W
}
if seg.Rwx&1 != 0 {
- ph.flags |= PF_X
+ ph.Flags |= elf.PF_X
}
- ph.vaddr = seg.Vaddr
- ph.paddr = seg.Vaddr
- ph.memsz = seg.Length
- ph.off = seg.Fileoff
- ph.filesz = seg.Filelen
- ph.align = uint64(*FlagRound)
+ ph.Vaddr = seg.Vaddr
+ ph.Paddr = seg.Vaddr
+ ph.Memsz = seg.Length
+ ph.Off = seg.Fileoff
+ ph.Filesz = seg.Filelen
+ ph.Align = uint64(*FlagRound)
return ph
}
func elfphrelro(seg *sym.Segment) {
ph := newElfPhdr()
- ph.type_ = PT_GNU_RELRO
- ph.vaddr = seg.Vaddr
- ph.paddr = seg.Vaddr
- ph.memsz = seg.Length
- ph.off = seg.Fileoff
- ph.filesz = seg.Filelen
- ph.align = uint64(*FlagRound)
+ ph.Type = elf.PT_GNU_RELRO
+ ph.Vaddr = seg.Vaddr
+ ph.Paddr = seg.Vaddr
+ ph.Memsz = seg.Length
+ ph.Off = seg.Fileoff
+ ph.Filesz = seg.Filelen
+ ph.Align = uint64(*FlagRound)
}
func elfshname(name string) *ElfShdr {
@@ -1203,9 +925,9 @@ func elfshname(name string) *ElfShdr {
continue
}
off := elfstr[i].off
- for i = 0; i < int(ehdr.shnum); i++ {
+ for i = 0; i < int(ehdr.Shnum); i++ {
sh := shdr[i]
- if sh.name == uint32(off) {
+ if sh.Name == uint32(off) {
return sh
}
}
@@ -1250,7 +972,7 @@ func elfshbits(linkmode LinkMode, sect *sym.Section) *ElfShdr {
// If this section has already been set up as a note, we assume type_ and
// flags are already correct, but the other fields still need filling in.
- if sh.type_ == SHT_NOTE {
+ if sh.Type == uint32(elf.SHT_NOTE) {
if linkmode != LinkExternal {
// TODO(mwhudson): the approach here will work OK when
// linking internally for notes that we want to be included
@@ -1259,44 +981,44 @@ func elfshbits(linkmode LinkMode, sect *sym.Section) *ElfShdr {
// list note). The real fix is probably to define new values
// for Symbol.Type corresponding to mapped and unmapped notes
// and handle them in dodata().
- Errorf(nil, "sh.type_ == SHT_NOTE in elfshbits when linking internally")
+ Errorf(nil, "sh.Type == SHT_NOTE in elfshbits when linking internally")
}
- sh.addralign = uint64(sect.Align)
- sh.size = sect.Length
- sh.off = sect.Seg.Fileoff + sect.Vaddr - sect.Seg.Vaddr
+ sh.Addralign = uint64(sect.Align)
+ sh.Size = sect.Length
+ sh.Off = sect.Seg.Fileoff + sect.Vaddr - sect.Seg.Vaddr
return sh
}
- if sh.type_ > 0 {
+ if sh.Type > 0 {
return sh
}
if sect.Vaddr < sect.Seg.Vaddr+sect.Seg.Filelen {
- sh.type_ = SHT_PROGBITS
+ sh.Type = uint32(elf.SHT_PROGBITS)
} else {
- sh.type_ = SHT_NOBITS
+ sh.Type = uint32(elf.SHT_NOBITS)
}
- sh.flags = SHF_ALLOC
+ sh.Flags = uint64(elf.SHF_ALLOC)
if sect.Rwx&1 != 0 {
- sh.flags |= SHF_EXECINSTR
+ sh.Flags |= uint64(elf.SHF_EXECINSTR)
}
if sect.Rwx&2 != 0 {
- sh.flags |= SHF_WRITE
+ sh.Flags |= uint64(elf.SHF_WRITE)
}
if sect.Name == ".tbss" {
- sh.flags |= SHF_TLS
- sh.type_ = SHT_NOBITS
+ sh.Flags |= uint64(elf.SHF_TLS)
+ sh.Type = uint32(elf.SHT_NOBITS)
}
if strings.HasPrefix(sect.Name, ".debug") || strings.HasPrefix(sect.Name, ".zdebug") {
- sh.flags = 0
+ sh.Flags = 0
}
if linkmode != LinkExternal {
- sh.addr = sect.Vaddr
+ sh.Addr = sect.Vaddr
}
- sh.addralign = uint64(sect.Align)
- sh.size = sect.Length
+ sh.Addralign = uint64(sect.Align)
+ sh.Size = sect.Length
if sect.Name != ".tbss" {
- sh.off = sect.Seg.Fileoff + sect.Vaddr - sect.Seg.Vaddr
+ sh.Off = sect.Seg.Fileoff + sect.Vaddr - sect.Seg.Vaddr
}
return sh
@@ -1311,13 +1033,13 @@ func elfshreloc(arch *sys.Arch, sect *sym.Section) *ElfShdr {
if sect.Name == ".shstrtab" || sect.Name == ".tbss" {
return nil
}
- if sect.Elfsect.(*ElfShdr).type_ == SHT_NOTE {
+ if sect.Elfsect.(*ElfShdr).Type == uint32(elf.SHT_NOTE) {
return nil
}
- typ := SHT_REL
+ typ := elf.SHT_REL
if elfRelType == ".rela" {
- typ = SHT_RELA
+ typ = elf.SHT_RELA
}
sh := elfshname(elfRelType + sect.Name)
@@ -1325,21 +1047,21 @@ func elfshreloc(arch *sys.Arch, sect *sym.Section) *ElfShdr {
// its own .rela.text.
if sect.Name == ".text" {
- if sh.info != 0 && sh.info != uint32(sect.Elfsect.(*ElfShdr).shnum) {
+ if sh.Info != 0 && sh.Info != uint32(sect.Elfsect.(*ElfShdr).shnum) {
sh = elfshnamedup(elfRelType + sect.Name)
}
}
- sh.type_ = uint32(typ)
- sh.entsize = uint64(arch.RegSize) * 2
- if typ == SHT_RELA {
- sh.entsize += uint64(arch.RegSize)
+ sh.Type = uint32(typ)
+ sh.Entsize = uint64(arch.RegSize) * 2
+ if typ == elf.SHT_RELA {
+ sh.Entsize += uint64(arch.RegSize)
}
- sh.link = uint32(elfshname(".symtab").shnum)
- sh.info = uint32(sect.Elfsect.(*ElfShdr).shnum)
- sh.off = sect.Reloff
- sh.size = sect.Rellen
- sh.addralign = uint64(arch.RegSize)
+ sh.Link = uint32(elfshname(".symtab").shnum)
+ sh.Info = uint32(sect.Elfsect.(*ElfShdr).shnum)
+ sh.Off = sect.Reloff
+ sh.Size = sect.Rellen
+ sh.Addralign = uint64(arch.RegSize)
return sh
}
@@ -1652,47 +1374,47 @@ func (ctxt *Link) doelf() {
/*
* .dynamic table
*/
- elfwritedynentsym(ctxt, dynamic, DT_HASH, hash.Sym())
+ elfwritedynentsym(ctxt, dynamic, elf.DT_HASH, hash.Sym())
- elfwritedynentsym(ctxt, dynamic, DT_SYMTAB, dynsym.Sym())
+ elfwritedynentsym(ctxt, dynamic, elf.DT_SYMTAB, dynsym.Sym())
if elf64 {
- Elfwritedynent(ctxt.Arch, dynamic, DT_SYMENT, ELF64SYMSIZE)
+ Elfwritedynent(ctxt.Arch, dynamic, elf.DT_SYMENT, ELF64SYMSIZE)
} else {
- Elfwritedynent(ctxt.Arch, dynamic, DT_SYMENT, ELF32SYMSIZE)
+ Elfwritedynent(ctxt.Arch, dynamic, elf.DT_SYMENT, ELF32SYMSIZE)
}
- elfwritedynentsym(ctxt, dynamic, DT_STRTAB, dynstr.Sym())
- elfwritedynentsymsize(ctxt, dynamic, DT_STRSZ, dynstr.Sym())
+ elfwritedynentsym(ctxt, dynamic, elf.DT_STRTAB, dynstr.Sym())
+ elfwritedynentsymsize(ctxt, dynamic, elf.DT_STRSZ, dynstr.Sym())
if elfRelType == ".rela" {
rela := ldr.LookupOrCreateSym(".rela", 0)
- elfwritedynentsym(ctxt, dynamic, DT_RELA, rela)
- elfwritedynentsymsize(ctxt, dynamic, DT_RELASZ, rela)
- Elfwritedynent(ctxt.Arch, dynamic, DT_RELAENT, ELF64RELASIZE)
+ elfwritedynentsym(ctxt, dynamic, elf.DT_RELA, rela)
+ elfwritedynentsymsize(ctxt, dynamic, elf.DT_RELASZ, rela)
+ Elfwritedynent(ctxt.Arch, dynamic, elf.DT_RELAENT, ELF64RELASIZE)
} else {
rel := ldr.LookupOrCreateSym(".rel", 0)
- elfwritedynentsym(ctxt, dynamic, DT_REL, rel)
- elfwritedynentsymsize(ctxt, dynamic, DT_RELSZ, rel)
- Elfwritedynent(ctxt.Arch, dynamic, DT_RELENT, ELF32RELSIZE)
+ elfwritedynentsym(ctxt, dynamic, elf.DT_REL, rel)
+ elfwritedynentsymsize(ctxt, dynamic, elf.DT_RELSZ, rel)
+ Elfwritedynent(ctxt.Arch, dynamic, elf.DT_RELENT, ELF32RELSIZE)
}
if rpath.val != "" {
- Elfwritedynent(ctxt.Arch, dynamic, DT_RUNPATH, uint64(dynstr.Addstring(rpath.val)))
+ Elfwritedynent(ctxt.Arch, dynamic, elf.DT_RUNPATH, uint64(dynstr.Addstring(rpath.val)))
}
if ctxt.IsPPC64() {
- elfwritedynentsym(ctxt, dynamic, DT_PLTGOT, plt.Sym())
+ elfwritedynentsym(ctxt, dynamic, elf.DT_PLTGOT, plt.Sym())
} else {
- elfwritedynentsym(ctxt, dynamic, DT_PLTGOT, gotplt.Sym())
+ elfwritedynentsym(ctxt, dynamic, elf.DT_PLTGOT, gotplt.Sym())
}
if ctxt.IsPPC64() {
- Elfwritedynent(ctxt.Arch, dynamic, DT_PPC64_OPT, 0)
+ Elfwritedynent(ctxt.Arch, dynamic, elf.DT_PPC64_OPT, 0)
}
// Solaris dynamic linker can't handle an empty .rela.plt if
- // DT_JMPREL is emitted so we have to defer generation of DT_PLTREL,
- // DT_PLTRELSZ, and DT_JMPREL dynamic entries until after we know the
+ // DT_JMPREL is emitted so we have to defer generation of elf.DT_PLTREL,
+ // DT_PLTRELSZ, and elf.DT_JMPREL dynamic entries until after we know the
// size of .rel(a).plt section.
- Elfwritedynent(ctxt.Arch, dynamic, DT_DEBUG, 0)
+ Elfwritedynent(ctxt.Arch, dynamic, elf.DT_DEBUG, 0)
}
if ctxt.IsShared() {
@@ -1731,20 +1453,20 @@ func shsym(sh *ElfShdr, ldr *loader.Loader, s loader.Sym) {
panic("bad symbol in shsym2")
}
addr := ldr.SymValue(s)
- if sh.flags&SHF_ALLOC != 0 {
- sh.addr = uint64(addr)
+ if sh.Flags&uint64(elf.SHF_ALLOC) != 0 {
+ sh.Addr = uint64(addr)
}
- sh.off = uint64(datoff(ldr, s, addr))
- sh.size = uint64(ldr.SymSize(s))
+ sh.Off = uint64(datoff(ldr, s, addr))
+ sh.Size = uint64(ldr.SymSize(s))
}
func phsh(ph *ElfPhdr, sh *ElfShdr) {
- ph.vaddr = sh.addr
- ph.paddr = ph.vaddr
- ph.off = sh.off
- ph.filesz = sh.size
- ph.memsz = sh.size
- ph.align = sh.addralign
+ ph.Vaddr = sh.Addr
+ ph.Paddr = ph.Vaddr
+ ph.Off = sh.Off
+ ph.Filesz = sh.Size
+ ph.Memsz = sh.Size
+ ph.Align = sh.Addralign
}
func Asmbelfsetup() {
@@ -1796,21 +1518,21 @@ func asmbElf(ctxt *Link) {
default:
Exitf("unknown architecture in asmbelf: %v", ctxt.Arch.Family)
case sys.MIPS, sys.MIPS64:
- eh.machine = EM_MIPS
+ eh.Machine = uint16(elf.EM_MIPS)
case sys.ARM:
- eh.machine = EM_ARM
+ eh.Machine = uint16(elf.EM_ARM)
case sys.AMD64:
- eh.machine = EM_X86_64
+ eh.Machine = uint16(elf.EM_X86_64)
case sys.ARM64:
- eh.machine = EM_AARCH64
+ eh.Machine = uint16(elf.EM_AARCH64)
case sys.I386:
- eh.machine = EM_386
+ eh.Machine = uint16(elf.EM_386)
case sys.PPC64:
- eh.machine = EM_PPC64
+ eh.Machine = uint16(elf.EM_PPC64)
case sys.RISCV64:
- eh.machine = EM_RISCV
+ eh.Machine = uint16(elf.EM_RISCV)
case sys.S390X:
- eh.machine = EM_S390
+ eh.Machine = uint16(elf.EM_S390)
}
elfreserve := int64(ELFRESERVE)
@@ -1840,30 +1562,30 @@ func asmbElf(ctxt *Link) {
sh := elfshname(".note.netbsd.pax")
resoff -= int64(elfnetbsdpax(sh, uint64(startva), uint64(resoff)))
pnote = newElfPhdr()
- pnote.type_ = PT_NOTE
- pnote.flags = PF_R
+ pnote.Type = elf.PT_NOTE
+ pnote.Flags = elf.PF_R
phsh(pnote, sh)
}
if ctxt.LinkMode == LinkExternal {
/* skip program headers */
- eh.phoff = 0
+ eh.Phoff = 0
- eh.phentsize = 0
+ eh.Phentsize = 0
if ctxt.BuildMode == BuildModeShared {
sh := elfshname(".note.go.pkg-list")
- sh.type_ = SHT_NOTE
+ sh.Type = uint32(elf.SHT_NOTE)
sh = elfshname(".note.go.abihash")
- sh.type_ = SHT_NOTE
- sh.flags = SHF_ALLOC
+ sh.Type = uint32(elf.SHT_NOTE)
+ sh.Flags = uint64(elf.SHF_ALLOC)
sh = elfshname(".note.go.deps")
- sh.type_ = SHT_NOTE
+ sh.Type = uint32(elf.SHT_NOTE)
}
if *flagBuildid != "" {
sh := elfshname(".note.go.buildid")
- sh.type_ = SHT_NOTE
- sh.flags = SHF_ALLOC
+ sh.Type = uint32(elf.SHT_NOTE)
+ sh.Flags = uint64(elf.SHF_ALLOC)
}
goto elfobj
@@ -1872,22 +1594,22 @@ func asmbElf(ctxt *Link) {
/* program header info */
pph = newElfPhdr()
- pph.type_ = PT_PHDR
- pph.flags = PF_R
- pph.off = uint64(eh.ehsize)
- pph.vaddr = uint64(*FlagTextAddr) - uint64(HEADR) + pph.off
- pph.paddr = uint64(*FlagTextAddr) - uint64(HEADR) + pph.off
- pph.align = uint64(*FlagRound)
+ pph.Type = elf.PT_PHDR
+ pph.Flags = elf.PF_R
+ pph.Off = uint64(eh.Ehsize)
+ pph.Vaddr = uint64(*FlagTextAddr) - uint64(HEADR) + pph.Off
+ pph.Paddr = uint64(*FlagTextAddr) - uint64(HEADR) + pph.Off
+ pph.Align = uint64(*FlagRound)
/*
* PHDR must be in a loaded segment. Adjust the text
* segment boundaries downwards to include it.
*/
{
- o := int64(Segtext.Vaddr - pph.vaddr)
+ o := int64(Segtext.Vaddr - pph.Vaddr)
Segtext.Vaddr -= uint64(o)
Segtext.Length += uint64(o)
- o = int64(Segtext.Fileoff - pph.off)
+ o = int64(Segtext.Fileoff - pph.Off)
Segtext.Fileoff -= uint64(o)
Segtext.Filelen += uint64(o)
}
@@ -1896,9 +1618,9 @@ func asmbElf(ctxt *Link) {
/* interpreter */
sh := elfshname(".interp")
- sh.type_ = SHT_PROGBITS
- sh.flags = SHF_ALLOC
- sh.addralign = 1
+ sh.Type = uint32(elf.SHT_PROGBITS)
+ sh.Flags = uint64(elf.SHF_ALLOC)
+ sh.Addralign = 1
if interpreter == "" && objabi.GO_LDSO != "" {
interpreter = objabi.GO_LDSO
@@ -1936,8 +1658,8 @@ func asmbElf(ctxt *Link) {
resoff -= int64(elfinterp(sh, uint64(startva), uint64(resoff), interpreter))
ph := newElfPhdr()
- ph.type_ = PT_INTERP
- ph.flags = PF_R
+ ph.Type = elf.PT_INTERP
+ ph.Flags = elf.PF_R
phsh(ph, sh)
}
@@ -1955,8 +1677,8 @@ func asmbElf(ctxt *Link) {
}
pnote = newElfPhdr()
- pnote.type_ = PT_NOTE
- pnote.flags = PF_R
+ pnote.Type = elf.PT_NOTE
+ pnote.Flags = elf.PF_R
phsh(pnote, sh)
}
@@ -1966,8 +1688,8 @@ func asmbElf(ctxt *Link) {
if pnote == nil {
pnote = newElfPhdr()
- pnote.type_ = PT_NOTE
- pnote.flags = PF_R
+ pnote.Type = elf.PT_NOTE
+ pnote.Flags = elf.PF_R
}
phsh(pnote, sh)
@@ -1978,8 +1700,8 @@ func asmbElf(ctxt *Link) {
resoff -= int64(elfgobuildid(sh, uint64(startva), uint64(resoff)))
pnote := newElfPhdr()
- pnote.type_ = PT_NOTE
- pnote.flags = PF_R
+ pnote.Type = elf.PT_NOTE
+ pnote.Flags = elf.PF_R
phsh(pnote, sh)
}
@@ -1998,15 +1720,15 @@ func asmbElf(ctxt *Link) {
/* Dynamic linking sections */
if !*FlagD {
sh := elfshname(".dynsym")
- sh.type_ = SHT_DYNSYM
- sh.flags = SHF_ALLOC
+ sh.Type = uint32(elf.SHT_DYNSYM)
+ sh.Flags = uint64(elf.SHF_ALLOC)
if elf64 {
- sh.entsize = ELF64SYMSIZE
+ sh.Entsize = ELF64SYMSIZE
} else {
- sh.entsize = ELF32SYMSIZE
+ sh.Entsize = ELF32SYMSIZE
}
- sh.addralign = uint64(ctxt.Arch.RegSize)
- sh.link = uint32(elfshname(".dynstr").shnum)
+ sh.Addralign = uint64(ctxt.Arch.RegSize)
+ sh.Link = uint32(elfshname(".dynstr").shnum)
// sh.info is the index of first non-local symbol (number of local symbols)
s := ldr.Lookup(".dynsym", 0)
@@ -2017,134 +1739,134 @@ func asmbElf(ctxt *Link) {
break
}
}
- sh.info = i
+ sh.Info = i
shsym(sh, ldr, s)
sh = elfshname(".dynstr")
- sh.type_ = SHT_STRTAB
- sh.flags = SHF_ALLOC
- sh.addralign = 1
+ sh.Type = uint32(elf.SHT_STRTAB)
+ sh.Flags = uint64(elf.SHF_ALLOC)
+ sh.Addralign = 1
shsym(sh, ldr, ldr.Lookup(".dynstr", 0))
if elfverneed != 0 {
sh := elfshname(".gnu.version")
- sh.type_ = SHT_GNU_VERSYM
- sh.flags = SHF_ALLOC
- sh.addralign = 2
- sh.link = uint32(elfshname(".dynsym").shnum)
- sh.entsize = 2
+ sh.Type = uint32(elf.SHT_GNU_VERSYM)
+ sh.Flags = uint64(elf.SHF_ALLOC)
+ sh.Addralign = 2
+ sh.Link = uint32(elfshname(".dynsym").shnum)
+ sh.Entsize = 2
shsym(sh, ldr, ldr.Lookup(".gnu.version", 0))
sh = elfshname(".gnu.version_r")
- sh.type_ = SHT_GNU_VERNEED
- sh.flags = SHF_ALLOC
- sh.addralign = uint64(ctxt.Arch.RegSize)
- sh.info = uint32(elfverneed)
- sh.link = uint32(elfshname(".dynstr").shnum)
+ sh.Type = uint32(elf.SHT_GNU_VERNEED)
+ sh.Flags = uint64(elf.SHF_ALLOC)
+ sh.Addralign = uint64(ctxt.Arch.RegSize)
+ sh.Info = uint32(elfverneed)
+ sh.Link = uint32(elfshname(".dynstr").shnum)
shsym(sh, ldr, ldr.Lookup(".gnu.version_r", 0))
}
if elfRelType == ".rela" {
sh := elfshname(".rela.plt")
- sh.type_ = SHT_RELA
- sh.flags = SHF_ALLOC
- sh.entsize = ELF64RELASIZE
- sh.addralign = uint64(ctxt.Arch.RegSize)
- sh.link = uint32(elfshname(".dynsym").shnum)
- sh.info = uint32(elfshname(".plt").shnum)
+ sh.Type = uint32(elf.SHT_RELA)
+ sh.Flags = uint64(elf.SHF_ALLOC)
+ sh.Entsize = ELF64RELASIZE
+ sh.Addralign = uint64(ctxt.Arch.RegSize)
+ sh.Link = uint32(elfshname(".dynsym").shnum)
+ sh.Info = uint32(elfshname(".plt").shnum)
shsym(sh, ldr, ldr.Lookup(".rela.plt", 0))
sh = elfshname(".rela")
- sh.type_ = SHT_RELA
- sh.flags = SHF_ALLOC
- sh.entsize = ELF64RELASIZE
- sh.addralign = 8
- sh.link = uint32(elfshname(".dynsym").shnum)
+ sh.Type = uint32(elf.SHT_RELA)
+ sh.Flags = uint64(elf.SHF_ALLOC)
+ sh.Entsize = ELF64RELASIZE
+ sh.Addralign = 8
+ sh.Link = uint32(elfshname(".dynsym").shnum)
shsym(sh, ldr, ldr.Lookup(".rela", 0))
} else {
sh := elfshname(".rel.plt")
- sh.type_ = SHT_REL
- sh.flags = SHF_ALLOC
- sh.entsize = ELF32RELSIZE
- sh.addralign = 4
- sh.link = uint32(elfshname(".dynsym").shnum)
+ sh.Type = uint32(elf.SHT_REL)
+ sh.Flags = uint64(elf.SHF_ALLOC)
+ sh.Entsize = ELF32RELSIZE
+ sh.Addralign = 4
+ sh.Link = uint32(elfshname(".dynsym").shnum)
shsym(sh, ldr, ldr.Lookup(".rel.plt", 0))
sh = elfshname(".rel")
- sh.type_ = SHT_REL
- sh.flags = SHF_ALLOC
- sh.entsize = ELF32RELSIZE
- sh.addralign = 4
- sh.link = uint32(elfshname(".dynsym").shnum)
+ sh.Type = uint32(elf.SHT_REL)
+ sh.Flags = uint64(elf.SHF_ALLOC)
+ sh.Entsize = ELF32RELSIZE
+ sh.Addralign = 4
+ sh.Link = uint32(elfshname(".dynsym").shnum)
shsym(sh, ldr, ldr.Lookup(".rel", 0))
}
- if eh.machine == EM_PPC64 {
+ if elf.Machine(eh.Machine) == elf.EM_PPC64 {
sh := elfshname(".glink")
- sh.type_ = SHT_PROGBITS
- sh.flags = SHF_ALLOC + SHF_EXECINSTR
- sh.addralign = 4
+ sh.Type = uint32(elf.SHT_PROGBITS)
+ sh.Flags = uint64(elf.SHF_ALLOC + elf.SHF_EXECINSTR)
+ sh.Addralign = 4
shsym(sh, ldr, ldr.Lookup(".glink", 0))
}
sh = elfshname(".plt")
- sh.type_ = SHT_PROGBITS
- sh.flags = SHF_ALLOC + SHF_EXECINSTR
- if eh.machine == EM_X86_64 {
- sh.entsize = 16
- } else if eh.machine == EM_S390 {
- sh.entsize = 32
- } else if eh.machine == EM_PPC64 {
+ sh.Type = uint32(elf.SHT_PROGBITS)
+ sh.Flags = uint64(elf.SHF_ALLOC + elf.SHF_EXECINSTR)
+ if elf.Machine(eh.Machine) == elf.EM_X86_64 {
+ sh.Entsize = 16
+ } else if elf.Machine(eh.Machine) == elf.EM_S390 {
+ sh.Entsize = 32
+ } else if elf.Machine(eh.Machine) == elf.EM_PPC64 {
// On ppc64, this is just a table of addresses
// filled by the dynamic linker
- sh.type_ = SHT_NOBITS
+ sh.Type = uint32(elf.SHT_NOBITS)
- sh.flags = SHF_ALLOC + SHF_WRITE
- sh.entsize = 8
+ sh.Flags = uint64(elf.SHF_ALLOC + elf.SHF_WRITE)
+ sh.Entsize = 8
} else {
- sh.entsize = 4
+ sh.Entsize = 4
}
- sh.addralign = sh.entsize
+ sh.Addralign = sh.Entsize
shsym(sh, ldr, ldr.Lookup(".plt", 0))
// On ppc64, .got comes from the input files, so don't
// create it here, and .got.plt is not used.
- if eh.machine != EM_PPC64 {
+ if elf.Machine(eh.Machine) != elf.EM_PPC64 {
sh := elfshname(".got")
- sh.type_ = SHT_PROGBITS
- sh.flags = SHF_ALLOC + SHF_WRITE
- sh.entsize = uint64(ctxt.Arch.RegSize)
- sh.addralign = uint64(ctxt.Arch.RegSize)
+ sh.Type = uint32(elf.SHT_PROGBITS)
+ sh.Flags = uint64(elf.SHF_ALLOC + elf.SHF_WRITE)
+ sh.Entsize = uint64(ctxt.Arch.RegSize)
+ sh.Addralign = uint64(ctxt.Arch.RegSize)
shsym(sh, ldr, ldr.Lookup(".got", 0))
sh = elfshname(".got.plt")
- sh.type_ = SHT_PROGBITS
- sh.flags = SHF_ALLOC + SHF_WRITE
- sh.entsize = uint64(ctxt.Arch.RegSize)
- sh.addralign = uint64(ctxt.Arch.RegSize)
+ sh.Type = uint32(elf.SHT_PROGBITS)
+ sh.Flags = uint64(elf.SHF_ALLOC + elf.SHF_WRITE)
+ sh.Entsize = uint64(ctxt.Arch.RegSize)
+ sh.Addralign = uint64(ctxt.Arch.RegSize)
shsym(sh, ldr, ldr.Lookup(".got.plt", 0))
}
sh = elfshname(".hash")
- sh.type_ = SHT_HASH
- sh.flags = SHF_ALLOC
- sh.entsize = 4
- sh.addralign = uint64(ctxt.Arch.RegSize)
- sh.link = uint32(elfshname(".dynsym").shnum)
+ sh.Type = uint32(elf.SHT_HASH)
+ sh.Flags = uint64(elf.SHF_ALLOC)
+ sh.Entsize = 4
+ sh.Addralign = uint64(ctxt.Arch.RegSize)
+ sh.Link = uint32(elfshname(".dynsym").shnum)
shsym(sh, ldr, ldr.Lookup(".hash", 0))
- /* sh and PT_DYNAMIC for .dynamic section */
+ /* sh and elf.PT_DYNAMIC for .dynamic section */
sh = elfshname(".dynamic")
- sh.type_ = SHT_DYNAMIC
- sh.flags = SHF_ALLOC + SHF_WRITE
- sh.entsize = 2 * uint64(ctxt.Arch.RegSize)
- sh.addralign = uint64(ctxt.Arch.RegSize)
- sh.link = uint32(elfshname(".dynstr").shnum)
+ sh.Type = uint32(elf.SHT_DYNAMIC)
+ sh.Flags = uint64(elf.SHF_ALLOC + elf.SHF_WRITE)
+ sh.Entsize = 2 * uint64(ctxt.Arch.RegSize)
+ sh.Addralign = uint64(ctxt.Arch.RegSize)
+ sh.Link = uint32(elfshname(".dynstr").shnum)
shsym(sh, ldr, ldr.Lookup(".dynamic", 0))
ph := newElfPhdr()
- ph.type_ = PT_DYNAMIC
- ph.flags = PF_R + PF_W
+ ph.Type = elf.PT_DYNAMIC
+ ph.Flags = elf.PF_R + elf.PF_W
phsh(ph, sh)
/*
@@ -2158,35 +1880,35 @@ func asmbElf(ctxt *Link) {
}
if tlssize != 0 {
ph := newElfPhdr()
- ph.type_ = PT_TLS
- ph.flags = PF_R
- ph.memsz = tlssize
- ph.align = uint64(ctxt.Arch.RegSize)
+ ph.Type = elf.PT_TLS
+ ph.Flags = elf.PF_R
+ ph.Memsz = tlssize
+ ph.Align = uint64(ctxt.Arch.RegSize)
}
}
if ctxt.HeadType == objabi.Hlinux {
ph := newElfPhdr()
- ph.type_ = PT_GNU_STACK
- ph.flags = PF_W + PF_R
- ph.align = uint64(ctxt.Arch.RegSize)
+ ph.Type = elf.PT_GNU_STACK
+ ph.Flags = elf.PF_W + elf.PF_R
+ ph.Align = uint64(ctxt.Arch.RegSize)
ph = newElfPhdr()
- ph.type_ = PT_PAX_FLAGS
- ph.flags = 0x2a00 // mprotect, randexec, emutramp disabled
- ph.align = uint64(ctxt.Arch.RegSize)
+ ph.Type = elf.PT_PAX_FLAGS
+ ph.Flags = 0x2a00 // mprotect, randexec, emutramp disabled
+ ph.Align = uint64(ctxt.Arch.RegSize)
} else if ctxt.HeadType == objabi.Hsolaris {
ph := newElfPhdr()
- ph.type_ = PT_SUNWSTACK
- ph.flags = PF_W + PF_R
+ ph.Type = elf.PT_SUNWSTACK
+ ph.Flags = elf.PF_W + elf.PF_R
}
elfobj:
sh := elfshname(".shstrtab")
- sh.type_ = SHT_STRTAB
- sh.addralign = 1
+ sh.Type = uint32(elf.SHT_STRTAB)
+ sh.Addralign = 1
shsym(sh, ldr, ldr.Lookup(".shstrtab", 0))
- eh.shstrndx = uint16(sh.shnum)
+ eh.Shstrndx = uint16(sh.shnum)
// put these sections early in the list
if !*FlagS {
@@ -2230,72 +1952,73 @@ elfobj:
// add a .note.GNU-stack section to mark the stack as non-executable
sh := elfshname(".note.GNU-stack")
- sh.type_ = SHT_PROGBITS
- sh.addralign = 1
- sh.flags = 0
+ sh.Type = uint32(elf.SHT_PROGBITS)
+ sh.Addralign = 1
+ sh.Flags = 0
}
if !*FlagS {
sh := elfshname(".symtab")
- sh.type_ = SHT_SYMTAB
- sh.off = uint64(symo)
- sh.size = uint64(symSize)
- sh.addralign = uint64(ctxt.Arch.RegSize)
- sh.entsize = 8 + 2*uint64(ctxt.Arch.RegSize)
- sh.link = uint32(elfshname(".strtab").shnum)
- sh.info = uint32(elfglobalsymndx)
+ sh.Type = uint32(elf.SHT_SYMTAB)
+ sh.Off = uint64(symo)
+ sh.Size = uint64(symSize)
+ sh.Addralign = uint64(ctxt.Arch.RegSize)
+ sh.Entsize = 8 + 2*uint64(ctxt.Arch.RegSize)
+ sh.Link = uint32(elfshname(".strtab").shnum)
+ sh.Info = uint32(elfglobalsymndx)
sh = elfshname(".strtab")
- sh.type_ = SHT_STRTAB
- sh.off = uint64(symo) + uint64(symSize)
- sh.size = uint64(len(Elfstrdat))
- sh.addralign = 1
+ sh.Type = uint32(elf.SHT_STRTAB)
+ sh.Off = uint64(symo) + uint64(symSize)
+ sh.Size = uint64(len(Elfstrdat))
+ sh.Addralign = 1
}
/* Main header */
- eh.ident[EI_MAG0] = '\177'
-
- eh.ident[EI_MAG1] = 'E'
- eh.ident[EI_MAG2] = 'L'
- eh.ident[EI_MAG3] = 'F'
- if ctxt.HeadType == objabi.Hfreebsd {
- eh.ident[EI_OSABI] = ELFOSABI_FREEBSD
- } else if ctxt.HeadType == objabi.Hnetbsd {
- eh.ident[EI_OSABI] = ELFOSABI_NETBSD
- } else if ctxt.HeadType == objabi.Hopenbsd {
- eh.ident[EI_OSABI] = ELFOSABI_OPENBSD
- } else if ctxt.HeadType == objabi.Hdragonfly {
- eh.ident[EI_OSABI] = ELFOSABI_NONE
+ copy(eh.Ident[:], elf.ELFMAG)
+
+ var osabi elf.OSABI
+ switch ctxt.HeadType {
+ case objabi.Hfreebsd:
+ osabi = elf.ELFOSABI_FREEBSD
+ case objabi.Hnetbsd:
+ osabi = elf.ELFOSABI_NETBSD
+ case objabi.Hopenbsd:
+ osabi = elf.ELFOSABI_OPENBSD
+ case objabi.Hdragonfly:
+ osabi = elf.ELFOSABI_NONE
}
+ eh.Ident[elf.EI_OSABI] = byte(osabi)
+
if elf64 {
- eh.ident[EI_CLASS] = ELFCLASS64
+ eh.Ident[elf.EI_CLASS] = byte(elf.ELFCLASS64)
} else {
- eh.ident[EI_CLASS] = ELFCLASS32
+ eh.Ident[elf.EI_CLASS] = byte(elf.ELFCLASS32)
}
if ctxt.Arch.ByteOrder == binary.BigEndian {
- eh.ident[EI_DATA] = ELFDATA2MSB
+ eh.Ident[elf.EI_DATA] = byte(elf.ELFDATA2MSB)
} else {
- eh.ident[EI_DATA] = ELFDATA2LSB
+ eh.Ident[elf.EI_DATA] = byte(elf.ELFDATA2LSB)
}
- eh.ident[EI_VERSION] = EV_CURRENT
+ eh.Ident[elf.EI_VERSION] = byte(elf.EV_CURRENT)
if ctxt.LinkMode == LinkExternal {
- eh.type_ = ET_REL
+ eh.Type = uint16(elf.ET_REL)
} else if ctxt.BuildMode == BuildModePIE {
- eh.type_ = ET_DYN
+ eh.Type = uint16(elf.ET_DYN)
} else {
- eh.type_ = ET_EXEC
+ eh.Type = uint16(elf.ET_EXEC)
}
if ctxt.LinkMode != LinkExternal {
- eh.entry = uint64(Entryvalue(ctxt))
+ eh.Entry = uint64(Entryvalue(ctxt))
}
- eh.version = EV_CURRENT
+ eh.Version = uint32(elf.EV_CURRENT)
if pph != nil {
- pph.filesz = uint64(eh.phnum) * uint64(eh.phentsize)
- pph.memsz = pph.filesz
+ pph.Filesz = uint64(eh.Phnum) * uint64(eh.Phentsize)
+ pph.Memsz = pph.Filesz
}
ctxt.Out.SeekSet(0)
@@ -2345,21 +2068,21 @@ func elfadddynsym(ldr *loader.Loader, target *Target, syms *ArchSyms, s loader.S
if elf64 {
/* type */
- t := STB_GLOBAL << 4
+ var t uint8
if cgoexp && st == sym.STEXT {
- t |= STT_FUNC
+ t = elf.ST_INFO(elf.STB_GLOBAL, elf.STT_FUNC)
} else {
- t |= STT_OBJECT
+ t = elf.ST_INFO(elf.STB_GLOBAL, elf.STT_OBJECT)
}
- d.AddUint8(uint8(t))
+ d.AddUint8(t)
/* reserved */
d.AddUint8(0)
/* section where symbol is defined */
if st == sym.SDYNIMPORT {
- d.AddUint16(target.Arch, SHN_UNDEF)
+ d.AddUint16(target.Arch, uint16(elf.SHN_UNDEF))
} else {
d.AddUint16(target.Arch, 1)
}
@@ -2378,7 +2101,7 @@ func elfadddynsym(ldr *loader.Loader, target *Target, syms *ArchSyms, s loader.S
if target.Arch.Family == sys.AMD64 && !cgoeDynamic && dil != "" && !seenlib[dil] {
du := ldr.MakeSymbolUpdater(syms.Dynamic)
- Elfwritedynent(target.Arch, du, DT_NEEDED, uint64(dstru.Addstring(dil)))
+ Elfwritedynent(target.Arch, du, elf.DT_NEEDED, uint64(dstru.Addstring(dil)))
seenlib[dil] = true
}
} else {
@@ -2394,80 +2117,24 @@ func elfadddynsym(ldr *loader.Loader, target *Target, syms *ArchSyms, s loader.S
d.AddUint32(target.Arch, uint32(len(ldr.Data(s))))
/* type */
- t := STB_GLOBAL << 4
+ var t uint8
// TODO(mwhudson): presumably the behavior should actually be the same on both arm and 386.
if target.Arch.Family == sys.I386 && cgoexp && st == sym.STEXT {
- t |= STT_FUNC
+ t = elf.ST_INFO(elf.STB_GLOBAL, elf.STT_FUNC)
} else if target.Arch.Family == sys.ARM && cgoeDynamic && st == sym.STEXT {
- t |= STT_FUNC
+ t = elf.ST_INFO(elf.STB_GLOBAL, elf.STT_FUNC)
} else {
- t |= STT_OBJECT
+ t = elf.ST_INFO(elf.STB_GLOBAL, elf.STT_OBJECT)
}
- d.AddUint8(uint8(t))
+ d.AddUint8(t)
d.AddUint8(0)
/* shndx */
if st == sym.SDYNIMPORT {
- d.AddUint16(target.Arch, SHN_UNDEF)
+ d.AddUint16(target.Arch, uint16(elf.SHN_UNDEF))
} else {
d.AddUint16(target.Arch, 1)
}
}
}
-
-func ELF32_R_SYM(info uint32) uint32 {
- return info >> 8
-}
-
-func ELF32_R_TYPE(info uint32) uint32 {
- return uint32(uint8(info))
-}
-
-func ELF32_R_INFO(sym uint32, type_ uint32) uint32 {
- return sym<<8 | type_
-}
-
-func ELF32_ST_BIND(info uint8) uint8 {
- return info >> 4
-}
-
-func ELF32_ST_TYPE(info uint8) uint8 {
- return info & 0xf
-}
-
-func ELF32_ST_INFO(bind uint8, type_ uint8) uint8 {
- return bind<<4 | type_&0xf
-}
-
-func ELF32_ST_VISIBILITY(oth uint8) uint8 {
- return oth & 3
-}
-
-func ELF64_R_SYM(info uint64) uint32 {
- return uint32(info >> 32)
-}
-
-func ELF64_R_TYPE(info uint64) uint32 {
- return uint32(info)
-}
-
-func ELF64_R_INFO(sym uint32, type_ uint32) uint64 {
- return uint64(sym)<<32 | uint64(type_)
-}
-
-func ELF64_ST_BIND(info uint8) uint8 {
- return info >> 4
-}
-
-func ELF64_ST_TYPE(info uint8) uint8 {
- return info & 0xf
-}
-
-func ELF64_ST_INFO(bind uint8, type_ uint8) uint8 {
- return bind<<4 | type_&0xf
-}
-
-func ELF64_ST_VISIBILITY(oth uint8) uint8 {
- return oth & 3
-}
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