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cmd/internal/objfile: Skip mach-o debug symbols.

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This allows objdump to disassemble gcc generated binaries on OS X 10.6.

Change-Id: I1a5bfbf7c252e78215ef1f122520689d5ce6ddca
Reviewed-on: https://go-review.googlesource.com/10383
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Ryan Brown 2015-04-08 12:55:34 -07:00 committed by Ian Lance Taylor
parent fad25c29a1
commit bc89ad598e
1 changed files with 10 additions and 1 deletions
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9
src/cmd/internal/objfile/macho.go
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@ -13,6 +13,8 @@ import (
"sort" "sort"
) )
const stabTypeMask = 0xe0
type machoFile struct { type machoFile struct {
macho *macho.File macho *macho.File
} }
@ -34,12 +36,19 @@ func (f *machoFile) symbols() ([]Sym, error) {
// We infer the size of a symbol by looking at where the next symbol begins. // We infer the size of a symbol by looking at where the next symbol begins.
var addrs []uint64 var addrs []uint64
for _, s := range f.macho.Symtab.Syms { for _, s := range f.macho.Symtab.Syms {
// Skip stab debug info.
if s.Type&stabTypeMask == 0 {
addrs = append(addrs, s.Value) addrs = append(addrs, s.Value)
} }
}
sort.Sort(uint64s(addrs)) sort.Sort(uint64s(addrs))
var syms []Sym var syms []Sym
for _, s := range f.macho.Symtab.Syms { 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: '?'} sym := Sym{Name: s.Name, Addr: s.Value, Code: '?'}
i := sort.Search(len(addrs), func(x int) bool { return addrs[x] > s.Value }) i := sort.Search(len(addrs), func(x int) bool { return addrs[x] > s.Value })
if i < len(addrs) { if i < len(addrs) {