diff options
Diffstat (limited to 'src/debug/elf/file.go')
| -rw-r--r-- | src/debug/elf/file.go | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/src/debug/elf/file.go b/src/debug/elf/file.go index 3e766afe15..a42bde94f8 100644 --- a/src/debug/elf/file.go +++ b/src/debug/elf/file.go @@ -7,6 +7,7 @@ package elf import ( "bytes" + "compress/zlib" "debug/dwarf" "encoding/binary" "errors" @@ -863,6 +864,22 @@ func (f *File) DWARF() (*dwarf.Data, error) { return nil, err } + if len(b) >= 12 && string(b[:4]) == "ZLIB" { + dlen := binary.BigEndian.Uint64(b[4:12]) + dbuf := make([]byte, dlen) + r, err := zlib.NewReader(bytes.NewBuffer(b[12:])) + if err != nil { + return nil, err + } + if _, err := io.ReadFull(r, dbuf); err != nil { + return nil, err + } + if err := r.Close(); err != nil { + return nil, err + } + b = dbuf + } + for _, r := range f.Sections { if r.Type != SHT_RELA && r.Type != SHT_REL { continue @@ -887,17 +904,23 @@ func (f *File) DWARF() (*dwarf.Data, error) { // Don't bother loading others. var dat = map[string][]byte{"abbrev": nil, "info": nil, "str": nil, "line": nil} for i, s := range f.Sections { - if !strings.HasPrefix(s.Name, ".debug_") { + suffix := "" + switch { + case strings.HasPrefix(s.Name, ".debug_"): + suffix = s.Name[7:] + case strings.HasPrefix(s.Name, ".zdebug_"): + suffix = s.Name[8:] + default: continue } - if _, ok := dat[s.Name[7:]]; !ok { + if _, ok := dat[suffix]; !ok { continue } b, err := sectionData(i, s) if err != nil { return nil, err } - dat[s.Name[7:]] = b + dat[suffix] = b } d, err := dwarf.New(dat["abbrev"], nil, nil, dat["info"], dat["line"], nil, nil, dat["str"]) |