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cmd/internal/dwarf: replace Sym.Length with Context.Size

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Preparatory refactoring before next CL.

Change-Id: I06fb4670b933fddff1a2a70f3cf1eb124cbd86ee
Reviewed-on: https://go-review.googlesource.com/c/go/+/524899
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
This commit is contained in:
Matthew Dempsky 2023-08-31 21:17:46 -07:00 committed by Gopher Robot
parent 9b0140a695
commit 227ec02824
3 changed files with 11 additions and 13 deletions
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8
src/cmd/internal/dwarf/dwarf.go
View File

@ -40,7 +40,6 @@ var logDwarf bool
// Sym represents a symbol.
type Sym interface {
Length(dwarfContext interface{}) int64
}
// A Var represents a local variable or a function parameter.
@ -189,6 +188,7 @@ type InlCall struct {
// A Context specifies how to add data to a Sym.
type Context interface {
PtrSize() int
Size(s Sym) int64
AddInt(s Sym, size int, i int64)
AddBytes(s Sym, b []byte)
AddAddress(s Sym, t interface{}, ofs int64)
@ -1322,7 +1322,7 @@ func putInlinedFunc(ctxt Context, s *FnState, callIdx int) error {
putattr(ctxt, s.Info, abbrev, DW_FORM_ref_addr, DW_CLS_REFERENCE, 0, callee)
if abbrev == DW_ABRV_INLINED_SUBROUTINE_RANGES {
putattr(ctxt, s.Info, abbrev, DW_FORM_sec_offset, DW_CLS_PTR, s.Ranges.Length(ctxt), s.Ranges)
putattr(ctxt, s.Info, abbrev, DW_FORM_sec_offset, DW_CLS_PTR, ctxt.Size(s.Ranges), s.Ranges)
s.PutRanges(ctxt, ic.Ranges)
} else {
st := ic.Ranges[0].Start
@ -1535,7 +1535,7 @@ func putscope(ctxt Context, s *FnState, scopes []Scope, curscope int32, fnabbrev
putattr(ctxt, s.Info, DW_ABRV_LEXICAL_BLOCK_SIMPLE, DW_FORM_addr, DW_CLS_ADDRESS, scope.Ranges[0].End, s.StartPC)
} else {
Uleb128put(ctxt, s.Info, DW_ABRV_LEXICAL_BLOCK_RANGES)
putattr(ctxt, s.Info, DW_ABRV_LEXICAL_BLOCK_RANGES, DW_FORM_sec_offset, DW_CLS_PTR, s.Ranges.Length(ctxt), s.Ranges)
putattr(ctxt, s.Info, DW_ABRV_LEXICAL_BLOCK_RANGES, DW_FORM_sec_offset, DW_CLS_PTR, ctxt.Size(s.Ranges), s.Ranges)
s.PutRanges(ctxt, scope.Ranges)
}
@ -1684,7 +1684,7 @@ func putvar(ctxt Context, s *FnState, v *Var, absfn Sym, fnabbrev, inlIndex int,
}
if abbrevUsesLoclist(abbrev) {
putattr(ctxt, s.Info, abbrev, DW_FORM_sec_offset, DW_CLS_PTR, s.Loc.Length(ctxt), s.Loc)
putattr(ctxt, s.Info, abbrev, DW_FORM_sec_offset, DW_CLS_PTR, ctxt.Size(s.Loc), s.Loc)
v.PutLocationList(s.Loc, s.StartPC)
} else {
loc := encbuf[:0]

7
src/cmd/internal/obj/dwarf.go
View File

@ -207,6 +207,9 @@ type dwCtxt struct{ *Link }
func (c dwCtxt) PtrSize() int {
return c.Arch.PtrSize
}
func (c dwCtxt) Size(s dwarf.Sym) int64 {
return s.(*LSym).Size
}
func (c dwCtxt) AddInt(s dwarf.Sym, size int, i int64) {
ls := s.(*LSym)
ls.WriteInt(c.Link, ls.Size, size, i)
@ -315,10 +318,6 @@ func (ctxt *Link) dwarfSym(s *LSym) (dwarfInfoSym, dwarfLocSym, dwarfRangesSym,
return fn.dwarfInfoSym, fn.dwarfLocSym, fn.dwarfRangesSym, fn.dwarfAbsFnSym, fn.dwarfDebugLinesSym
}
func (s *LSym) Length(dwarfContext interface{}) int64 {
return s.Size
}
// textPos returns the source position of the first instruction (prog)
// of the specified function.
func textPos(fn *LSym) src.XPos {

9
src/cmd/link/internal/ld/dwarf.go
View File

@ -73,15 +73,14 @@ type dwctxt struct {
// DwAttr objects contain references to symbols via this type.
type dwSym loader.Sym
func (s dwSym) Length(dwarfContext interface{}) int64 {
l := dwarfContext.(dwctxt).ldr
return int64(len(l.Data(loader.Sym(s))))
}
func (c dwctxt) PtrSize() int {
return c.arch.PtrSize
}
func (c dwctxt) Size(s dwarf.Sym) int64 {
return int64(len(c.ldr.Data(loader.Sym(s.(dwSym)))))
}
func (c dwctxt) AddInt(s dwarf.Sym, size int, i int64) {
ds := loader.Sym(s.(dwSym))
dsu := c.ldr.MakeSymbolUpdater(ds)