diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/cmd/compile/internal/liveness/plive.go | 13 | ||||
| -rw-r--r-- | src/cmd/internal/obj/sym.go | 9 |
2 files changed, 10 insertions, 12 deletions
diff --git a/src/cmd/compile/internal/liveness/plive.go b/src/cmd/compile/internal/liveness/plive.go index 1e9d5748cc..dc778a6fb9 100644 --- a/src/cmd/compile/internal/liveness/plive.go +++ b/src/cmd/compile/internal/liveness/plive.go @@ -15,7 +15,6 @@ package liveness import ( - "crypto/md5" "crypto/sha1" "fmt" "os" @@ -1326,19 +1325,9 @@ func (lv *liveness) emit() (argsSym, liveSym *obj.LSym) { loff = objw.BitVec(&liveSymTmp, loff, locals) } - // Give these LSyms content-addressable names, - // so that they can be de-duplicated. - // This provides significant binary size savings. - // // These symbols will be added to Ctxt.Data by addGCLocals // after parallel compilation is done. - makeSym := func(tmpSym *obj.LSym) *obj.LSym { - return base.Ctxt.LookupInit(fmt.Sprintf("gclocals·%x", md5.Sum(tmpSym.P)), func(lsym *obj.LSym) { - lsym.P = tmpSym.P - lsym.Set(obj.AttrContentAddressable, true) - }) - } - return makeSym(&argsSymTmp), makeSym(&liveSymTmp) + return base.Ctxt.GCLocalsSym(argsSymTmp.P), base.Ctxt.GCLocalsSym(liveSymTmp.P) } // Entry pointer for Compute analysis. Solves for the Compute of diff --git a/src/cmd/internal/obj/sym.go b/src/cmd/internal/obj/sym.go index a272c517b3..a8360527ef 100644 --- a/src/cmd/internal/obj/sym.go +++ b/src/cmd/internal/obj/sym.go @@ -34,6 +34,7 @@ package obj import ( "cmd/internal/goobj" "cmd/internal/objabi" + "crypto/md5" "fmt" "internal/buildcfg" "log" @@ -172,6 +173,14 @@ func (ctxt *Link) Int64Sym(i int64) *LSym { }) } +// GCLocalsSym generates a content-addressable sym containing data. +func (ctxt *Link) GCLocalsSym(data []byte) *LSym { + return ctxt.LookupInit(fmt.Sprintf("gclocals·%x", md5.Sum(data)), func(lsym *LSym) { + lsym.P = data + lsym.Set(AttrContentAddressable, true) + }) +} + // Assign index to symbols. // asm is set to true if this is called by the assembler (i.e. not the compiler), // in which case all the symbols are non-package (for now). |