qbit/go
1
0
Fork 0
mirror of https://github.com/golang/go synced 2024-11-23 23:00:03 -07:00
Code Releases Activity

[dev.link] cmd/link: return package path in SymFile

Browse Source 
SymFile, derived from sym.Symbol.File, is supposed to return the
package path, instead of the file name (arguably the name is
confusing). Make it so, and rename it to SymPkg.

Change-Id: I67bcd12f67cea271f2a2ce3c5724e5d228f5b2f0
Reviewed-on: https://go-review.googlesource.com/c/go/+/227481
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Jeremy Faller <jeremy@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
This commit is contained in:
Cherry Zhang 2020-04-06 20:56:34 -04:00
parent 95ea64ba96
commit 5072c166a1
3 changed files with 22 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/cmd/link/internal/ld/dwarf.go
View File

@ -1433,7 +1433,7 @@ func (d *dwctxt2) writeframes(syms []loader.Sym) []loader.Sym {
fsu.AddBytes(deltaBuf)
if d.linkctxt.HeadType == objabi.Haix {
addDwsectCUSize(".debug_frame", d.ldr.SymFile(fn), fdeLength+uint64(lengthFieldSize))
addDwsectCUSize(".debug_frame", d.ldr.SymPkg(fn), fdeLength+uint64(lengthFieldSize))
}
}

2
src/cmd/link/internal/ld/lib.go
View File

@ -2162,7 +2162,7 @@ func ldshlibsyms(ctxt *Link, shlib string) {
l.SetAttrReachable(s, true)
// Set .File for the library that actually defines the symbol.
l.SetSymFile(s, libpath)
l.SetSymPkg(s, libpath)
// The decodetype_* functions in decodetype.go need access to
// the type data.

40
src/cmd/link/internal/loader/loader.go
View File

@ -243,7 +243,7 @@ type Loader struct {
localentry map[Sym]uint8 // stores Localentry symbol attribute
extname map[Sym]string // stores Extname symbol attribute
elfType map[Sym]elf.SymType // stores elf type symbol property
symFile map[Sym]string // stores file for shlib-derived syms
symPkg map[Sym]string // stores package for symbol, or library for shlib-derived syms
plt map[Sym]int32 // stores dynimport for pe objects
got map[Sym]int32 // stores got for pe objects
dynid map[Sym]int32 // stores Dynid for symbol
@ -311,7 +311,7 @@ func NewLoader(flags uint32, elfsetstring elfsetstringFunc) *Loader {
extname: make(map[Sym]string),
attrReadOnly: make(map[Sym]bool),
elfType: make(map[Sym]elf.SymType),
symFile: make(map[Sym]string),
symPkg: make(map[Sym]string),
plt: make(map[Sym]int32),
got: make(map[Sym]int32),
dynid: make(map[Sym]int32),
@ -1228,39 +1228,39 @@ func (l *Loader) SymUnit(i Sym) *sym.CompilationUnit {
return r.unit
}
// SymFile returns the file for a symbol, which is normally the
// package the symbol came from (for regular compiler-generated Go
// symbols), but in the case of building with "-linkshared" (when a
// symbol is read from a a shared library), will hold the library
// name.
func (l *Loader) SymFile(i Sym) string {
// SymPkg returns the package where the symbol came from (for
// regular compiler-generated Go symbols), but in the case of
// building with "-linkshared" (when a symbol is read from a
// shared library), will hold the library name.
// NOTE: this correspondes to sym.Symbol.File field.
func (l *Loader) SymPkg(i Sym) string {
if l.IsExternal(i) {
if f, ok := l.symFile[i]; ok {
if f, ok := l.symPkg[i]; ok {
return f
}
pp := l.getPayload(i)
if pp.objidx != 0 {
r := l.objs[pp.objidx].r
return r.unit.Lib.File
return r.unit.Lib.Pkg
}
return ""
}
r, _ := l.toLocal(i)
return r.unit.Lib.File
return r.unit.Lib.Pkg
}
// SetSymFile sets the file attribute for a symbol. This is
// SetSymPkg sets the package/library for a symbol. This is
// needed mainly for external symbols, specifically those imported
// from shared libraries.
func (l *Loader) SetSymFile(i Sym, file string) {
func (l *Loader) SetSymPkg(i Sym, pkg string) {
// reject bad symbols
if i >= Sym(len(l.objSyms)) || i == 0 {
panic("bad symbol index in SetSymFile")
panic("bad symbol index in SetSymPkg")
}
if !l.IsExternal(i) {
panic("can't set file for non-external sym")
}
l.symFile[i] = file
l.symPkg[i] = pkg
}
// SymLocalentry returns the "local entry" value for the specified
@ -1732,10 +1732,10 @@ func (l *Loader) LoadFull(arch *sys.Arch, syms *sym.Symbols) {
if pp.gotype != 0 {
s.Gotype = l.Syms[pp.gotype]
}
if f, ok := l.symFile[i]; ok {
if f, ok := l.symPkg[i]; ok {
s.File = f
} else if pp.objidx != 0 {
s.File = l.objs[pp.objidx].r.unit.Lib.File
s.File = l.objs[pp.objidx].r.unit.Lib.Pkg
}
// Copy relocations
@ -1909,12 +1909,12 @@ func (l *Loader) PropagateLoaderChangesToSymbols(toconvert []Sym, anonVerReplace
if gt := l.SymGoType(cand); gt != 0 {
s.Gotype = l.Syms[gt]
}
if f, ok := l.symFile[cand]; ok {
if f, ok := l.symPkg[cand]; ok {
s.File = f
} else {
r, _ := l.toLocal(cand)
if r != nil && r != l.extReader {
s.File = l.SymFile(cand)
s.File = l.SymPkg(cand)
}
}
}
@ -2191,7 +2191,7 @@ func (l *Loader) CopySym(src, dst Sym) {
panic("src is not external") //l.cloneToExternal(src)
}
l.payloads[l.extIndex(dst)] = l.payloads[l.extIndex(src)]
l.SetSymFile(dst, l.SymFile(src))
l.SetSymPkg(dst, l.SymPkg(src))
// TODO: other attributes?
}