diff options
Diffstat (limited to 'vendor/github.com/cilium/ebpf/internal/elf.go')
-rw-r--r-- | vendor/github.com/cilium/ebpf/internal/elf.go | 102 |
1 files changed, 0 insertions, 102 deletions
diff --git a/vendor/github.com/cilium/ebpf/internal/elf.go b/vendor/github.com/cilium/ebpf/internal/elf.go deleted file mode 100644 index 011581938..000000000 --- a/vendor/github.com/cilium/ebpf/internal/elf.go +++ /dev/null @@ -1,102 +0,0 @@ -package internal - -import ( - "debug/elf" - "fmt" - "io" -) - -type SafeELFFile struct { - *elf.File -} - -// NewSafeELFFile reads an ELF safely. -// -// Any panic during parsing is turned into an error. This is necessary since -// there are a bunch of unfixed bugs in debug/elf. -// -// https://github.com/golang/go/issues?q=is%3Aissue+is%3Aopen+debug%2Felf+in%3Atitle -func NewSafeELFFile(r io.ReaderAt) (safe *SafeELFFile, err error) { - defer func() { - r := recover() - if r == nil { - return - } - - safe = nil - err = fmt.Errorf("reading ELF file panicked: %s", r) - }() - - file, err := elf.NewFile(r) - if err != nil { - return nil, err - } - - return &SafeELFFile{file}, nil -} - -// OpenSafeELFFile reads an ELF from a file. -// -// It works like NewSafeELFFile, with the exception that safe.Close will -// close the underlying file. -func OpenSafeELFFile(path string) (safe *SafeELFFile, err error) { - defer func() { - r := recover() - if r == nil { - return - } - - safe = nil - err = fmt.Errorf("reading ELF file panicked: %s", r) - }() - - file, err := elf.Open(path) - if err != nil { - return nil, err - } - - return &SafeELFFile{file}, nil -} - -// Symbols is the safe version of elf.File.Symbols. -func (se *SafeELFFile) Symbols() (syms []elf.Symbol, err error) { - defer func() { - r := recover() - if r == nil { - return - } - - syms = nil - err = fmt.Errorf("reading ELF symbols panicked: %s", r) - }() - - syms, err = se.File.Symbols() - return -} - -// DynamicSymbols is the safe version of elf.File.DynamicSymbols. -func (se *SafeELFFile) DynamicSymbols() (syms []elf.Symbol, err error) { - defer func() { - r := recover() - if r == nil { - return - } - - syms = nil - err = fmt.Errorf("reading ELF dynamic symbols panicked: %s", r) - }() - - syms, err = se.File.DynamicSymbols() - return -} - -// SectionsByType returns all sections in the file with the specified section type. -func (se *SafeELFFile) SectionsByType(typ elf.SectionType) []*elf.Section { - sections := make([]*elf.Section, 0, 1) - for _, section := range se.Sections { - if section.Type == typ { - sections = append(sections, section) - } - } - return sections -} |