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897970688b
This CL makes two changes: 1. It moves object symbols and code tags into a new "relocName" relocation, which should eventually allow getting rid of objStub. 2. It moves the type parameter data into the relocObjDict relocation, so everything related to writing out dictionaries is contained there. Change-Id: If0f7ff7d9384e8664957c3180bf6f20e97bcff6e Reviewed-on: https://go-review.googlesource.com/c/go/+/336051 Trust: Matthew Dempsky <mdempsky@google.com> Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
187 lines
3.4 KiB
Go
187 lines
3.4 KiB
Go
// UNREVIEWED
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// Copyright 2021 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package noder
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import (
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"fmt"
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"strings"
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)
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// enableSync controls whether sync markers are written into unified
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// IR's export data format and also whether they're expected when
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// reading them back in. They're inessential to the correct
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// functioning of unified IR, but are helpful during development to
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// detect mistakes.
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//
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// When sync is enabled, writer stack frames will also be included in
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// the export data. Currently, a fixed number of frames are included,
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// controlled by -d=syncframes (default 0).
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const enableSync = true
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// fmtFrames formats a backtrace for reporting reader/writer desyncs.
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func fmtFrames(pcs ...uintptr) []string {
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res := make([]string, 0, len(pcs))
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walkFrames(pcs, func(file string, line int, name string, offset uintptr) {
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// Trim package from function name. It's just redundant noise.
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name = strings.TrimPrefix(name, "cmd/compile/internal/noder.")
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res = append(res, fmt.Sprintf("%s:%v: %s +0x%v", file, line, name, offset))
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})
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return res
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}
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type frameVisitor func(file string, line int, name string, offset uintptr)
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// syncMarker is an enum type that represents markers that may be
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// written to export data to ensure the reader and writer stay
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// synchronized.
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type syncMarker int
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//go:generate stringer -type=syncMarker -trimprefix=sync
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// TODO(mdempsky): Cleanup unneeded sync markers.
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// TODO(mdempsky): Split these markers into public/stable markers, and
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// private ones. Also, trim unused ones.
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const (
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_ syncMarker = iota
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syncNode
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syncBool
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syncInt64
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syncUint64
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syncString
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syncPos
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syncPkg
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syncSym
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syncSelector
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syncKind
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syncType
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syncTypePkg
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syncSignature
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syncParam
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syncOp
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syncObject
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syncExpr
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syncStmt
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syncDecl
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syncConstDecl
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syncFuncDecl
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syncTypeDecl
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syncVarDecl
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syncPragma
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syncValue
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syncEOF
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syncMethod
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syncFuncBody
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syncUse
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syncUseObj
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syncObjectIdx
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syncTypeIdx
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syncBOF
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syncEntry
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syncOpenScope
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syncCloseScope
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syncGlobal
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syncLocal
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syncDefine
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syncDefLocal
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syncUseLocal
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syncDefGlobal
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syncUseGlobal
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syncTypeParams
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syncUseLabel
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syncDefLabel
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syncFuncLit
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syncCommonFunc
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syncBodyRef
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syncLinksymExt
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syncHack
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syncSetlineno
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syncName
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syncImportDecl
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syncDeclNames
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syncDeclName
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syncExprList
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syncExprs
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syncWrapname
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syncTypeExpr
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syncTypeExprOrNil
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syncChanDir
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syncParams
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syncCloseAnotherScope
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syncSum
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syncUnOp
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syncBinOp
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syncStructType
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syncInterfaceType
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syncPackname
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syncEmbedded
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syncStmts
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syncStmtsFall
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syncStmtFall
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syncBlockStmt
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syncIfStmt
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syncForStmt
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syncSwitchStmt
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syncRangeStmt
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syncCaseClause
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syncCommClause
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syncSelectStmt
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syncDecls
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syncLabeledStmt
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syncCompLit
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sync1
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sync2
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sync3
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sync4
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syncN
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syncDefImplicit
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syncUseName
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syncUseObjLocal
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syncAddLocal
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syncBothSignature
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syncSetUnderlying
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syncLinkname
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syncStmt1
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syncStmtsEnd
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syncDeclare
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syncTopDecls
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syncTopConstDecl
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syncTopFuncDecl
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syncTopTypeDecl
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syncTopVarDecl
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syncObject1
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syncAddBody
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syncLabel
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syncFuncExt
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syncMethExt
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syncOptLabel
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syncScalar
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syncStmtDecls
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syncDeclLocal
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syncObjLocal
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syncObjLocal1
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syncDeclareLocal
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syncPublic
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syncPrivate
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syncRelocs
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syncReloc
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syncUseReloc
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syncVarExt
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syncPkgDef
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syncTypeExt
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syncVal
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syncCodeObj
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syncPosBase
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syncLocalIdent
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syncTypeParamNames
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syncTypeParamBounds
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syncImplicitTypes
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syncObjectName
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)
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