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[dev.link] cmd/link: convert asmb pass to new style

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Change-Id: I8675f56a7f7f18653754eb87b95f5a7aec31ad74
Reviewed-on: https://go-review.googlesource.com/c/go/+/229860
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: Jeremy Faller <jeremy@golang.org>
This commit is contained in:
Cherry Zhang 2020-04-25 17:50:48 -04:00
parent 0722a49b37
commit 1adae7fe76
4 changed files with 77 additions and 45 deletions
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31
src/cmd/link/internal/loader/loader.go
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@ -216,6 +216,8 @@ type Loader struct {
sects []*sym.Section // sections
symSects []uint16 // symbol's section, index to sects array
outdata [][]byte // symbol's data in the output buffer
itablink map[Sym]struct{} // itablink[j] defined if j is go.itablink.*
objByPkg map[string]*oReader // map package path to its Go object reader
@ -1080,6 +1082,32 @@ func (l *Loader) Data(i Sym) []byte {
return r.Data(li)
}
// Returns the data of the i-th symbol in the output buffer.
func (l *Loader) OutData(i Sym) []byte {
if int(i) < len(l.outdata) && l.outdata[i] != nil {
return l.outdata[i]
}
return l.Data(i)
}
// SetOutData sets the position of the data of the i-th symbol in the output buffer.
// i is global index.
func (l *Loader) SetOutData(i Sym, data []byte) {
if l.IsExternal(i) {
pp := l.getPayload(i)
if pp != nil {
pp.data = data
return
}
}
l.outdata[i] = data
}
// InitOutData initializes the slice used to store symbol output data.
func (l *Loader) InitOutData() {
l.outdata = make([][]byte, l.extStart)
}
// SymAlign returns the alignment for a symbol.
func (l *Loader) SymAlign(i Sym) int32 {
// If an alignment has been recorded, return that.
@ -2592,8 +2620,7 @@ func loadObjFull(l *Loader, r *oReader) {
size := osym.Siz()
// Symbol data
s.P = r.Data(i)
s.Attr.Set(sym.AttrReadOnly, r.ReadOnly())
s.P = l.OutData(gi)
// Relocs
relocs := l.relocs(r, i)