diff options
Diffstat (limited to 'src/pkg/debug/gosym/pclntab.go')
| -rw-r--r-- | src/pkg/debug/gosym/pclntab.go | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/pkg/debug/gosym/pclntab.go b/src/pkg/debug/gosym/pclntab.go index 3e6a8046b..6620aefb0 100644 --- a/src/pkg/debug/gosym/pclntab.go +++ b/src/pkg/debug/gosym/pclntab.go @@ -196,6 +196,33 @@ func (t *LineTable) go12Init() { t.go12 = 1 // so far so good } +// go12Funcs returns a slice of Funcs derived from the Go 1.2 pcln table. +func (t *LineTable) go12Funcs() []Func { + // Assume it is malformed and return nil on error. + defer func() { + recover() + }() + + n := len(t.functab) / int(t.ptrsize) / 2 + funcs := make([]Func, n) + for i := range funcs { + f := &funcs[i] + f.Entry = uint64(t.uintptr(t.functab[2*i*int(t.ptrsize):])) + f.End = uint64(t.uintptr(t.functab[(2*i+2)*int(t.ptrsize):])) + info := t.Data[t.uintptr(t.functab[(2*i+1)*int(t.ptrsize):]):] + f.LineTable = t + f.FrameSize = int(t.binary.Uint32(info[t.ptrsize+2*4:])) + f.Sym = &Sym{ + Value: f.Entry, + Type: 'T', + Name: t.string(t.binary.Uint32(info[t.ptrsize:])), + GoType: 0, + Func: f, + } + } + return funcs +} + // findFunc returns the func corresponding to the given program counter. func (t *LineTable) findFunc(pc uint64) []byte { if pc < t.uintptr(t.functab) || pc >= t.uintptr(t.functab[len(t.functab)-int(t.ptrsize):]) { |