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authorWim <wim@42.be>2018-08-06 21:47:05 +0200
committerWim <wim@42.be>2018-08-06 21:47:05 +0200
commit51062863a5c34d81e296cf15c61140911037cf3b (patch)
tree9b5e044672486326c7a0ca8fb26430f37bf4d83c /vendor/github.com/google/gops/internal/objfile/macho.go
parent4fb4b7aa6c02a54db8ad8dd98e4d321396926c0d (diff)
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Use mod vendor for vendored directory (backwards compatible)
Diffstat (limited to 'vendor/github.com/google/gops/internal/objfile/macho.go')
-rw-r--r--vendor/github.com/google/gops/internal/objfile/macho.go134
1 files changed, 0 insertions, 134 deletions
diff --git a/vendor/github.com/google/gops/internal/objfile/macho.go b/vendor/github.com/google/gops/internal/objfile/macho.go
deleted file mode 100644
index 1d22a09b..00000000
--- a/vendor/github.com/google/gops/internal/objfile/macho.go
+++ /dev/null
@@ -1,134 +0,0 @@
-// Copyright 2013 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Parsing of Mach-O executables (OS X).
-
-package objfile
-
-import (
- "debug/dwarf"
- "debug/macho"
- "fmt"
- "os"
- "sort"
-)
-
-const stabTypeMask = 0xe0
-
-type machoFile struct {
- macho *macho.File
-}
-
-func openMacho(r *os.File) (rawFile, error) {
- f, err := macho.NewFile(r)
- if err != nil {
- return nil, err
- }
- return &machoFile{f}, nil
-}
-
-func (f *machoFile) symbols() ([]Sym, error) {
- if f.macho.Symtab == nil {
- return nil, fmt.Errorf("missing symbol table")
- }
-
- // Build sorted list of addresses of all symbols.
- // We infer the size of a symbol by looking at where the next symbol begins.
- var addrs []uint64
- for _, s := range f.macho.Symtab.Syms {
- // Skip stab debug info.
- if s.Type&stabTypeMask == 0 {
- addrs = append(addrs, s.Value)
- }
- }
- sort.Sort(uint64s(addrs))
-
- var syms []Sym
- for _, s := range f.macho.Symtab.Syms {
- if s.Type&stabTypeMask != 0 {
- // Skip stab debug info.
- continue
- }
- sym := Sym{Name: s.Name, Addr: s.Value, Code: '?'}
- i := sort.Search(len(addrs), func(x int) bool { return addrs[x] > s.Value })
- if i < len(addrs) {
- sym.Size = int64(addrs[i] - s.Value)
- }
- if s.Sect == 0 {
- sym.Code = 'U'
- } else if int(s.Sect) <= len(f.macho.Sections) {
- sect := f.macho.Sections[s.Sect-1]
- switch sect.Seg {
- case "__TEXT":
- sym.Code = 'R'
- case "__DATA":
- sym.Code = 'D'
- }
- switch sect.Seg + " " + sect.Name {
- case "__TEXT __text":
- sym.Code = 'T'
- case "__DATA __bss", "__DATA __noptrbss":
- sym.Code = 'B'
- }
- }
- syms = append(syms, sym)
- }
-
- return syms, nil
-}
-
-func (f *machoFile) pcln() (textStart uint64, symtab, pclntab []byte, err error) {
- if sect := f.macho.Section("__text"); sect != nil {
- textStart = sect.Addr
- }
- if sect := f.macho.Section("__gosymtab"); sect != nil {
- if symtab, err = sect.Data(); err != nil {
- return 0, nil, nil, err
- }
- }
- if sect := f.macho.Section("__gopclntab"); sect != nil {
- if pclntab, err = sect.Data(); err != nil {
- return 0, nil, nil, err
- }
- }
- return textStart, symtab, pclntab, nil
-}
-
-func (f *machoFile) text() (textStart uint64, text []byte, err error) {
- sect := f.macho.Section("__text")
- if sect == nil {
- return 0, nil, fmt.Errorf("text section not found")
- }
- textStart = sect.Addr
- text, err = sect.Data()
- return
-}
-
-func (f *machoFile) goarch() string {
- switch f.macho.Cpu {
- case macho.Cpu386:
- return "386"
- case macho.CpuAmd64:
- return "amd64"
- case macho.CpuArm:
- return "arm"
- case macho.CpuPpc64:
- return "ppc64"
- }
- return ""
-}
-
-type uint64s []uint64
-
-func (x uint64s) Len() int { return len(x) }
-func (x uint64s) Swap(i, j int) { x[i], x[j] = x[j], x[i] }
-func (x uint64s) Less(i, j int) bool { return x[i] < x[j] }
-
-func (f *machoFile) loadAddress() (uint64, error) {
- return 0, fmt.Errorf("unknown load address")
-}
-
-func (f *machoFile) dwarf() (*dwarf.Data, error) {
- return f.macho.DWARF()
-}