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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/objfile.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/objfile.go')
-rw-r--r--vendor/github.com/google/gops/internal/objfile/objfile.go129
1 files changed, 0 insertions, 129 deletions
diff --git a/vendor/github.com/google/gops/internal/objfile/objfile.go b/vendor/github.com/google/gops/internal/objfile/objfile.go
deleted file mode 100644
index a884a20d..00000000
--- a/vendor/github.com/google/gops/internal/objfile/objfile.go
+++ /dev/null
@@ -1,129 +0,0 @@
-// Copyright 2014 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.
-
-// Package objfile implements portable access to OS-specific executable files.
-package objfile
-
-import (
- "debug/dwarf"
- "debug/gosym"
- "fmt"
- "os"
- "sort"
-)
-
-type rawFile interface {
- symbols() (syms []Sym, err error)
- pcln() (textStart uint64, symtab, pclntab []byte, err error)
- text() (textStart uint64, text []byte, err error)
- goarch() string
- loadAddress() (uint64, error)
- dwarf() (*dwarf.Data, error)
-}
-
-// A File is an opened executable file.
-type File struct {
- r *os.File
- raw rawFile
-}
-
-// A Sym is a symbol defined in an executable file.
-type Sym struct {
- Name string // symbol name
- Addr uint64 // virtual address of symbol
- Size int64 // size in bytes
- Code rune // nm code (T for text, D for data, and so on)
- Type string // XXX?
- Relocs []Reloc // in increasing Addr order
-}
-
-type Reloc struct {
- Addr uint64 // Address of first byte that reloc applies to.
- Size uint64 // Number of bytes
- Stringer RelocStringer
-}
-
-type RelocStringer interface {
- // insnOffset is the offset of the instruction containing the relocation
- // from the start of the symbol containing the relocation.
- String(insnOffset uint64) string
-}
-
-var openers = []func(*os.File) (rawFile, error){
- openElf,
- // openGoobj, // TODO(jbd): Bring it back when 1.8 is popular.
- openMacho,
- openPE,
- openPlan9,
-}
-
-// Open opens the named file.
-// The caller must call f.Close when the file is no longer needed.
-func Open(name string) (*File, error) {
- r, err := os.Open(name)
- if err != nil {
- return nil, err
- }
- for _, try := range openers {
- if raw, err := try(r); err == nil {
- return &File{r, raw}, nil
- }
- }
- r.Close()
- return nil, fmt.Errorf("open %s: unrecognized object file", name)
-}
-
-func (f *File) Close() error {
- return f.r.Close()
-}
-
-func (f *File) Symbols() ([]Sym, error) {
- syms, err := f.raw.symbols()
- if err != nil {
- return nil, err
- }
- sort.Sort(byAddr(syms))
- return syms, nil
-}
-
-type byAddr []Sym
-
-func (x byAddr) Less(i, j int) bool { return x[i].Addr < x[j].Addr }
-func (x byAddr) Len() int { return len(x) }
-func (x byAddr) Swap(i, j int) { x[i], x[j] = x[j], x[i] }
-
-func (f *File) PCLineTable() (Liner, error) {
- // If the raw file implements Liner directly, use that.
- // Currently, only Go intermediate objects and archives (goobj) use this path.
- if pcln, ok := f.raw.(Liner); ok {
- return pcln, nil
- }
- // Otherwise, read the pcln tables and build a Liner out of that.
- textStart, symtab, pclntab, err := f.raw.pcln()
- if err != nil {
- return nil, err
- }
- return gosym.NewTable(symtab, gosym.NewLineTable(pclntab, textStart))
-}
-
-func (f *File) Text() (uint64, []byte, error) {
- return f.raw.text()
-}
-
-func (f *File) GOARCH() string {
- return f.raw.goarch()
-}
-
-// LoadAddress returns the expected load address of the file.
-// This differs from the actual load address for a position-independent
-// executable.
-func (f *File) LoadAddress() (uint64, error) {
- return f.raw.loadAddress()
-}
-
-// DWARF returns DWARF debug data for the file, if any.
-// This is for cmd/pprof to locate cgo functions.
-func (f *File) DWARF() (*dwarf.Data, error) {
- return f.raw.dwarf()
-}