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https://github.com/golang/go
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[dev.link] cmd/link: continue refactoring dodata
Move more items into the dodata state object (including the "datsize" variable used in allocateSections) and the Link ctxt pointer), so as to prepare for follow-on refactorings. No change in functionality. Change-Id: Ie2b1651c1ac9b89deb3f7692227dcd931240afa9 Reviewed-on: https://go-review.googlesource.com/c/go/+/228779 Run-TryBot: Than McIntosh <thanm@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Jeremy Faller <jeremy@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
This commit is contained in:
Than McIntosh
parent
8ab37b1baf
commit
817bd10cae
@ -1273,8 +1273,8 @@ func (d bySizeAndName) Less(i, j int) bool {
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// (see issue #9862).
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const cutoff = 2e9 // 2 GB (or so; looks better in errors than 2^31)
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func checkdatsize(ctxt *Link, datsize int64, symn sym.SymKind) {
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if datsize > cutoff {
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func (state *dodataState) checkdatsize(symn sym.SymKind) {
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if state.datsize > cutoff {
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Errorf(nil, "too much data in section %v (over %v bytes)", symn, cutoff)
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}
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}
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@ -1405,10 +1405,14 @@ func (state *dodataState) makeRelroForSharedLib(target *Link) {
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// various helpers it calls. The lifetime of these items should not extend
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// past the end of dodata().
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type dodataState struct {
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// Link context
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ctxt *Link
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// Data symbols bucketed by type.
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data [sym.SXREF][]*sym.Symbol
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// Max alignment for each flavor of data symbol.
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dataMaxAlign [sym.SXREF]int32
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// Current data size so far.
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datsize int64
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}
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func (ctxt *Link) dodata() {
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@ -1494,7 +1498,6 @@ func (state *dodataState) allocateSections(ctxt *Link) {
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// Data is processed before segtext, because we need
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// to see all symbols in the .data and .bss sections in order
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// to generate garbage collection information.
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datsize := int64(0)
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// Writable data sections that do not need any specialized handling.
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writable := []sym.SymKind{
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@ -1508,28 +1511,28 @@ func (state *dodataState) allocateSections(ctxt *Link) {
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for _, s := range state.data[symn] {
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sect := addsection(ctxt.Arch, &Segdata, s.Name, 06)
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sect.Align = symalign(s)
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datsize = Rnd(datsize, int64(sect.Align))
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sect.Vaddr = uint64(datsize)
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state.datsize = Rnd(state.datsize, int64(sect.Align))
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sect.Vaddr = uint64(state.datsize)
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s.Sect = sect
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s.Type = sym.SDATA
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s.Value = int64(uint64(datsize) - sect.Vaddr)
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datsize += s.Size
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sect.Length = uint64(datsize) - sect.Vaddr
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s.Value = int64(uint64(state.datsize) - sect.Vaddr)
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state.datsize += s.Size
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sect.Length = uint64(state.datsize) - sect.Vaddr
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}
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checkdatsize(ctxt, datsize, symn)
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state.checkdatsize(symn)
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}
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// .got (and .toc on ppc64)
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if len(state.data[sym.SELFGOT]) > 0 {
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sect := addsection(ctxt.Arch, &Segdata, ".got", 06)
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sect.Align = state.dataMaxAlign[sym.SELFGOT]
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datsize = Rnd(datsize, int64(sect.Align))
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sect.Vaddr = uint64(datsize)
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state.datsize = Rnd(state.datsize, int64(sect.Align))
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sect.Vaddr = uint64(state.datsize)
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for _, s := range state.data[sym.SELFGOT] {
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datsize = aligndatsize(datsize, s)
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state.datsize = aligndatsize(state.datsize, s)
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s.Sect = sect
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s.Type = sym.SDATA
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s.Value = int64(uint64(datsize) - sect.Vaddr)
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s.Value = int64(uint64(state.datsize) - sect.Vaddr)
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// Resolve .TOC. symbol for this object file (ppc64)
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toc := ctxt.Syms.ROLookup(".TOC.", int(s.Version))
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@ -1542,28 +1545,28 @@ func (state *dodataState) allocateSections(ctxt *Link) {
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toc.Value = 0x8000
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}
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datsize += s.Size
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state.datsize += s.Size
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}
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checkdatsize(ctxt, datsize, sym.SELFGOT)
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sect.Length = uint64(datsize) - sect.Vaddr
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state.checkdatsize(sym.SELFGOT)
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sect.Length = uint64(state.datsize) - sect.Vaddr
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}
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/* pointer-free data */
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sect := addsection(ctxt.Arch, &Segdata, ".noptrdata", 06)
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sect.Align = state.dataMaxAlign[sym.SNOPTRDATA]
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datsize = Rnd(datsize, int64(sect.Align))
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sect.Vaddr = uint64(datsize)
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state.datsize = Rnd(state.datsize, int64(sect.Align))
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sect.Vaddr = uint64(state.datsize)
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ctxt.Syms.Lookup("runtime.noptrdata", 0).Sect = sect
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ctxt.Syms.Lookup("runtime.enoptrdata", 0).Sect = sect
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for _, s := range state.data[sym.SNOPTRDATA] {
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datsize = aligndatsize(datsize, s)
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state.datsize = aligndatsize(state.datsize, s)
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s.Sect = sect
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s.Type = sym.SDATA
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s.Value = int64(uint64(datsize) - sect.Vaddr)
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datsize += s.Size
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s.Value = int64(uint64(state.datsize) - sect.Vaddr)
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state.datsize += s.Size
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}
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checkdatsize(ctxt, datsize, sym.SNOPTRDATA)
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sect.Length = uint64(datsize) - sect.Vaddr
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state.checkdatsize(sym.SNOPTRDATA)
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sect.Length = uint64(state.datsize) - sect.Vaddr
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hasinitarr := ctxt.linkShared
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@ -1582,23 +1585,23 @@ func (state *dodataState) allocateSections(ctxt *Link) {
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if hasinitarr && len(state.data[sym.SINITARR]) > 0 {
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sect := addsection(ctxt.Arch, &Segdata, ".init_array", 06)
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sect.Align = state.dataMaxAlign[sym.SINITARR]
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datsize = Rnd(datsize, int64(sect.Align))
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sect.Vaddr = uint64(datsize)
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state.datsize = Rnd(state.datsize, int64(sect.Align))
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sect.Vaddr = uint64(state.datsize)
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for _, s := range state.data[sym.SINITARR] {
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datsize = aligndatsize(datsize, s)
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state.datsize = aligndatsize(state.datsize, s)
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s.Sect = sect
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s.Value = int64(uint64(datsize) - sect.Vaddr)
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datsize += s.Size
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s.Value = int64(uint64(state.datsize) - sect.Vaddr)
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state.datsize += s.Size
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}
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sect.Length = uint64(datsize) - sect.Vaddr
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checkdatsize(ctxt, datsize, sym.SINITARR)
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sect.Length = uint64(state.datsize) - sect.Vaddr
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state.checkdatsize(sym.SINITARR)
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}
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/* data */
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sect = addsection(ctxt.Arch, &Segdata, ".data", 06)
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sect.Align = state.dataMaxAlign[sym.SDATA]
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datsize = Rnd(datsize, int64(sect.Align))
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sect.Vaddr = uint64(datsize)
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state.datsize = Rnd(state.datsize, int64(sect.Align))
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sect.Vaddr = uint64(state.datsize)
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ctxt.Syms.Lookup("runtime.data", 0).Sect = sect
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ctxt.Syms.Lookup("runtime.edata", 0).Sect = sect
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var gc GCProg
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@ -1606,75 +1609,75 @@ func (state *dodataState) allocateSections(ctxt *Link) {
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for _, s := range state.data[sym.SDATA] {
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s.Sect = sect
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s.Type = sym.SDATA
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datsize = aligndatsize(datsize, s)
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s.Value = int64(uint64(datsize) - sect.Vaddr)
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state.datsize = aligndatsize(state.datsize, s)
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s.Value = int64(uint64(state.datsize) - sect.Vaddr)
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gc.AddSym(s)
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datsize += s.Size
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state.datsize += s.Size
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}
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gc.End(datsize - int64(sect.Vaddr))
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gc.End(state.datsize - int64(sect.Vaddr))
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// On AIX, TOC entries must be the last of .data
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// These aren't part of gc as they won't change during the runtime.
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for _, s := range state.data[sym.SXCOFFTOC] {
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s.Sect = sect
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s.Type = sym.SDATA
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datsize = aligndatsize(datsize, s)
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s.Value = int64(uint64(datsize) - sect.Vaddr)
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datsize += s.Size
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state.datsize = aligndatsize(state.datsize, s)
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s.Value = int64(uint64(state.datsize) - sect.Vaddr)
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state.datsize += s.Size
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}
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checkdatsize(ctxt, datsize, sym.SDATA)
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sect.Length = uint64(datsize) - sect.Vaddr
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state.checkdatsize(sym.SDATA)
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sect.Length = uint64(state.datsize) - sect.Vaddr
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/* bss */
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sect = addsection(ctxt.Arch, &Segdata, ".bss", 06)
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sect.Align = state.dataMaxAlign[sym.SBSS]
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datsize = Rnd(datsize, int64(sect.Align))
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sect.Vaddr = uint64(datsize)
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state.datsize = Rnd(state.datsize, int64(sect.Align))
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sect.Vaddr = uint64(state.datsize)
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ctxt.Syms.Lookup("runtime.bss", 0).Sect = sect
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ctxt.Syms.Lookup("runtime.ebss", 0).Sect = sect
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gc = GCProg{}
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gc.Init(ctxt, "runtime.gcbss")
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for _, s := range state.data[sym.SBSS] {
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s.Sect = sect
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datsize = aligndatsize(datsize, s)
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s.Value = int64(uint64(datsize) - sect.Vaddr)
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state.datsize = aligndatsize(state.datsize, s)
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s.Value = int64(uint64(state.datsize) - sect.Vaddr)
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gc.AddSym(s)
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datsize += s.Size
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state.datsize += s.Size
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}
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checkdatsize(ctxt, datsize, sym.SBSS)
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sect.Length = uint64(datsize) - sect.Vaddr
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state.checkdatsize(sym.SBSS)
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sect.Length = uint64(state.datsize) - sect.Vaddr
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gc.End(int64(sect.Length))
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/* pointer-free bss */
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sect = addsection(ctxt.Arch, &Segdata, ".noptrbss", 06)
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sect.Align = state.dataMaxAlign[sym.SNOPTRBSS]
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datsize = Rnd(datsize, int64(sect.Align))
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sect.Vaddr = uint64(datsize)
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state.datsize = Rnd(state.datsize, int64(sect.Align))
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sect.Vaddr = uint64(state.datsize)
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ctxt.Syms.Lookup("runtime.noptrbss", 0).Sect = sect
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ctxt.Syms.Lookup("runtime.enoptrbss", 0).Sect = sect
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for _, s := range state.data[sym.SNOPTRBSS] {
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datsize = aligndatsize(datsize, s)
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state.datsize = aligndatsize(state.datsize, s)
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s.Sect = sect
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s.Value = int64(uint64(datsize) - sect.Vaddr)
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datsize += s.Size
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s.Value = int64(uint64(state.datsize) - sect.Vaddr)
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state.datsize += s.Size
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}
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sect.Length = uint64(datsize) - sect.Vaddr
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sect.Length = uint64(state.datsize) - sect.Vaddr
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ctxt.Syms.Lookup("runtime.end", 0).Sect = sect
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checkdatsize(ctxt, datsize, sym.SNOPTRBSS)
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state.checkdatsize(sym.SNOPTRBSS)
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// Coverage instrumentation counters for libfuzzer.
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if len(state.data[sym.SLIBFUZZER_EXTRA_COUNTER]) > 0 {
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sect := addsection(ctxt.Arch, &Segdata, "__libfuzzer_extra_counters", 06)
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sect.Align = state.dataMaxAlign[sym.SLIBFUZZER_EXTRA_COUNTER]
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datsize = Rnd(datsize, int64(sect.Align))
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sect.Vaddr = uint64(datsize)
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state.datsize = Rnd(state.datsize, int64(sect.Align))
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sect.Vaddr = uint64(state.datsize)
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for _, s := range state.data[sym.SLIBFUZZER_EXTRA_COUNTER] {
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datsize = aligndatsize(datsize, s)
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state.datsize = aligndatsize(state.datsize, s)
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s.Sect = sect
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s.Value = int64(uint64(datsize) - sect.Vaddr)
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datsize += s.Size
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s.Value = int64(uint64(state.datsize) - sect.Vaddr)
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state.datsize += s.Size
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}
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sect.Length = uint64(datsize) - sect.Vaddr
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checkdatsize(ctxt, datsize, sym.SLIBFUZZER_EXTRA_COUNTER)
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sect.Length = uint64(state.datsize) - sect.Vaddr
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state.checkdatsize(sym.SLIBFUZZER_EXTRA_COUNTER)
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}
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if len(state.data[sym.STLSBSS]) > 0 {
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@ -1684,18 +1687,18 @@ func (state *dodataState) allocateSections(ctxt *Link) {
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sect.Align = int32(ctxt.Arch.PtrSize)
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sect.Vaddr = 0
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}
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datsize = 0
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state.datsize = 0
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for _, s := range state.data[sym.STLSBSS] {
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datsize = aligndatsize(datsize, s)
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state.datsize = aligndatsize(state.datsize, s)
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s.Sect = sect
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s.Value = datsize
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datsize += s.Size
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s.Value = state.datsize
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state.datsize += s.Size
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}
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checkdatsize(ctxt, datsize, sym.STLSBSS)
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state.checkdatsize(sym.STLSBSS)
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if sect != nil {
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sect.Length = uint64(datsize)
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sect.Length = uint64(state.datsize)
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}
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}
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@ -1717,7 +1720,7 @@ func (state *dodataState) allocateSections(ctxt *Link) {
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segro = &Segtext
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}
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datsize = 0
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state.datsize = 0
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/* read-only executable ELF, Mach-O sections */
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if len(state.data[sym.STEXT]) != 0 {
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@ -1726,14 +1729,14 @@ func (state *dodataState) allocateSections(ctxt *Link) {
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for _, s := range state.data[sym.SELFRXSECT] {
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sect := addsection(ctxt.Arch, &Segtext, s.Name, 04)
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sect.Align = symalign(s)
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datsize = Rnd(datsize, int64(sect.Align))
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sect.Vaddr = uint64(datsize)
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state.datsize = Rnd(state.datsize, int64(sect.Align))
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sect.Vaddr = uint64(state.datsize)
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s.Sect = sect
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s.Type = sym.SRODATA
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s.Value = int64(uint64(datsize) - sect.Vaddr)
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datsize += s.Size
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sect.Length = uint64(datsize) - sect.Vaddr
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checkdatsize(ctxt, datsize, sym.SELFRXSECT)
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s.Value = int64(uint64(state.datsize) - sect.Vaddr)
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state.datsize += s.Size
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sect.Length = uint64(state.datsize) - sect.Vaddr
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state.checkdatsize(sym.SELFRXSECT)
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}
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/* read-only data */
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@ -1752,53 +1755,53 @@ func (state *dodataState) allocateSections(ctxt *Link) {
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sect.Align = align
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}
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}
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datsize = Rnd(datsize, int64(sect.Align))
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state.datsize = Rnd(state.datsize, int64(sect.Align))
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for _, symn := range sym.ReadOnly {
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symnStartValue := datsize
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symnStartValue := state.datsize
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for _, s := range state.data[symn] {
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datsize = aligndatsize(datsize, s)
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state.datsize = aligndatsize(state.datsize, s)
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s.Sect = sect
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s.Type = sym.SRODATA
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s.Value = int64(uint64(datsize) - sect.Vaddr)
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datsize += s.Size
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s.Value = int64(uint64(state.datsize) - sect.Vaddr)
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state.datsize += s.Size
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}
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checkdatsize(ctxt, datsize, symn)
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state.checkdatsize(symn)
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if ctxt.HeadType == objabi.Haix {
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// Read-only symbols might be wrapped inside their outer
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// symbol.
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// XCOFF symbol table needs to know the size of
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// these outer symbols.
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xcoffUpdateOuterSize(ctxt, datsize-symnStartValue, symn)
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xcoffUpdateOuterSize(ctxt, state.datsize-symnStartValue, symn)
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}
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}
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sect.Length = uint64(datsize) - sect.Vaddr
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sect.Length = uint64(state.datsize) - sect.Vaddr
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/* read-only ELF, Mach-O sections */
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for _, s := range state.data[sym.SELFROSECT] {
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sect = addsection(ctxt.Arch, segro, s.Name, 04)
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sect.Align = symalign(s)
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datsize = Rnd(datsize, int64(sect.Align))
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sect.Vaddr = uint64(datsize)
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state.datsize = Rnd(state.datsize, int64(sect.Align))
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sect.Vaddr = uint64(state.datsize)
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s.Sect = sect
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s.Type = sym.SRODATA
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s.Value = int64(uint64(datsize) - sect.Vaddr)
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datsize += s.Size
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sect.Length = uint64(datsize) - sect.Vaddr
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s.Value = int64(uint64(state.datsize) - sect.Vaddr)
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state.datsize += s.Size
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sect.Length = uint64(state.datsize) - sect.Vaddr
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}
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checkdatsize(ctxt, datsize, sym.SELFROSECT)
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state.checkdatsize(sym.SELFROSECT)
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for _, s := range state.data[sym.SMACHOPLT] {
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sect = addsection(ctxt.Arch, segro, s.Name, 04)
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sect.Align = symalign(s)
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datsize = Rnd(datsize, int64(sect.Align))
|
||||
sect.Vaddr = uint64(datsize)
|
||||
state.datsize = Rnd(state.datsize, int64(sect.Align))
|
||||
sect.Vaddr = uint64(state.datsize)
|
||||
s.Sect = sect
|
||||
s.Type = sym.SRODATA
|
||||
s.Value = int64(uint64(datsize) - sect.Vaddr)
|
||||
datsize += s.Size
|
||||
sect.Length = uint64(datsize) - sect.Vaddr
|
||||
s.Value = int64(uint64(state.datsize) - sect.Vaddr)
|
||||
state.datsize += s.Size
|
||||
sect.Length = uint64(state.datsize) - sect.Vaddr
|
||||
}
|
||||
checkdatsize(ctxt, datsize, sym.SMACHOPLT)
|
||||
state.checkdatsize(sym.SMACHOPLT)
|
||||
|
||||
// There is some data that are conceptually read-only but are written to by
|
||||
// relocations. On GNU systems, we can arrange for the dynamic linker to
|
||||
@ -1826,7 +1829,7 @@ func (state *dodataState) allocateSections(ctxt *Link) {
|
||||
segrelro = segro
|
||||
} else {
|
||||
// Reset datsize for new segment.
|
||||
datsize = 0
|
||||
state.datsize = 0
|
||||
}
|
||||
|
||||
addrelrosection = func(suffix string) *sym.Section {
|
||||
@ -1846,8 +1849,8 @@ func (state *dodataState) allocateSections(ctxt *Link) {
|
||||
sect.Align = align
|
||||
}
|
||||
}
|
||||
datsize = Rnd(datsize, int64(sect.Align))
|
||||
sect.Vaddr = uint64(datsize)
|
||||
state.datsize = Rnd(state.datsize, int64(sect.Align))
|
||||
sect.Vaddr = uint64(state.datsize)
|
||||
|
||||
for i, symnro := range sym.ReadOnly {
|
||||
if i == 0 && symnro == sym.STYPE && ctxt.HeadType != objabi.Haix {
|
||||
@ -1855,62 +1858,62 @@ func (state *dodataState) allocateSections(ctxt *Link) {
|
||||
// reference uses a zero offset.
|
||||
// This is unlikely but possible in small
|
||||
// programs with no other read-only data.
|
||||
datsize++
|
||||
state.datsize++
|
||||
}
|
||||
|
||||
symn := sym.RelROMap[symnro]
|
||||
symnStartValue := datsize
|
||||
symnStartValue := state.datsize
|
||||
for _, s := range state.data[symn] {
|
||||
datsize = aligndatsize(datsize, s)
|
||||
state.datsize = aligndatsize(state.datsize, s)
|
||||
if s.Outer != nil && s.Outer.Sect != nil && s.Outer.Sect != sect {
|
||||
Errorf(s, "s.Outer (%s) in different section from s, %s != %s", s.Outer.Name, s.Outer.Sect.Name, sect.Name)
|
||||
}
|
||||
s.Sect = sect
|
||||
s.Type = sym.SRODATA
|
||||
s.Value = int64(uint64(datsize) - sect.Vaddr)
|
||||
datsize += s.Size
|
||||
s.Value = int64(uint64(state.datsize) - sect.Vaddr)
|
||||
state.datsize += s.Size
|
||||
}
|
||||
checkdatsize(ctxt, datsize, symn)
|
||||
state.checkdatsize(symn)
|
||||
if ctxt.HeadType == objabi.Haix {
|
||||
// Read-only symbols might be wrapped inside their outer
|
||||
// symbol.
|
||||
// XCOFF symbol table needs to know the size of
|
||||
// these outer symbols.
|
||||
xcoffUpdateOuterSize(ctxt, datsize-symnStartValue, symn)
|
||||
xcoffUpdateOuterSize(ctxt, state.datsize-symnStartValue, symn)
|
||||
}
|
||||
}
|
||||
|
||||
sect.Length = uint64(datsize) - sect.Vaddr
|
||||
sect.Length = uint64(state.datsize) - sect.Vaddr
|
||||
}
|
||||
|
||||
/* typelink */
|
||||
sect = addrelrosection(".typelink")
|
||||
sect.Align = state.dataMaxAlign[sym.STYPELINK]
|
||||
datsize = Rnd(datsize, int64(sect.Align))
|
||||
sect.Vaddr = uint64(datsize)
|
||||
state.datsize = Rnd(state.datsize, int64(sect.Align))
|
||||
sect.Vaddr = uint64(state.datsize)
|
||||
typelink := ctxt.Syms.Lookup("runtime.typelink", 0)
|
||||
typelink.Sect = sect
|
||||
typelink.Type = sym.SRODATA
|
||||
datsize += typelink.Size
|
||||
checkdatsize(ctxt, datsize, sym.STYPELINK)
|
||||
sect.Length = uint64(datsize) - sect.Vaddr
|
||||
state.datsize += typelink.Size
|
||||
state.checkdatsize(sym.STYPELINK)
|
||||
sect.Length = uint64(state.datsize) - sect.Vaddr
|
||||
|
||||
/* itablink */
|
||||
sect = addrelrosection(".itablink")
|
||||
sect.Align = state.dataMaxAlign[sym.SITABLINK]
|
||||
datsize = Rnd(datsize, int64(sect.Align))
|
||||
sect.Vaddr = uint64(datsize)
|
||||
state.datsize = Rnd(state.datsize, int64(sect.Align))
|
||||
sect.Vaddr = uint64(state.datsize)
|
||||
ctxt.Syms.Lookup("runtime.itablink", 0).Sect = sect
|
||||
ctxt.Syms.Lookup("runtime.eitablink", 0).Sect = sect
|
||||
for _, s := range state.data[sym.SITABLINK] {
|
||||
datsize = aligndatsize(datsize, s)
|
||||
state.datsize = aligndatsize(state.datsize, s)
|
||||
s.Sect = sect
|
||||
s.Type = sym.SRODATA
|
||||
s.Value = int64(uint64(datsize) - sect.Vaddr)
|
||||
datsize += s.Size
|
||||
s.Value = int64(uint64(state.datsize) - sect.Vaddr)
|
||||
state.datsize += s.Size
|
||||
}
|
||||
checkdatsize(ctxt, datsize, sym.SITABLINK)
|
||||
sect.Length = uint64(datsize) - sect.Vaddr
|
||||
state.checkdatsize(sym.SITABLINK)
|
||||
sect.Length = uint64(state.datsize) - sect.Vaddr
|
||||
if ctxt.HeadType == objabi.Haix {
|
||||
// Store .itablink size because its symbols are wrapped
|
||||
// under an outer symbol: runtime.itablink.
|
||||
@ -1920,40 +1923,40 @@ func (state *dodataState) allocateSections(ctxt *Link) {
|
||||
/* gosymtab */
|
||||
sect = addrelrosection(".gosymtab")
|
||||
sect.Align = state.dataMaxAlign[sym.SSYMTAB]
|
||||
datsize = Rnd(datsize, int64(sect.Align))
|
||||
sect.Vaddr = uint64(datsize)
|
||||
state.datsize = Rnd(state.datsize, int64(sect.Align))
|
||||
sect.Vaddr = uint64(state.datsize)
|
||||
ctxt.Syms.Lookup("runtime.symtab", 0).Sect = sect
|
||||
ctxt.Syms.Lookup("runtime.esymtab", 0).Sect = sect
|
||||
for _, s := range state.data[sym.SSYMTAB] {
|
||||
datsize = aligndatsize(datsize, s)
|
||||
state.datsize = aligndatsize(state.datsize, s)
|
||||
s.Sect = sect
|
||||
s.Type = sym.SRODATA
|
||||
s.Value = int64(uint64(datsize) - sect.Vaddr)
|
||||
datsize += s.Size
|
||||
s.Value = int64(uint64(state.datsize) - sect.Vaddr)
|
||||
state.datsize += s.Size
|
||||
}
|
||||
checkdatsize(ctxt, datsize, sym.SSYMTAB)
|
||||
sect.Length = uint64(datsize) - sect.Vaddr
|
||||
state.checkdatsize(sym.SSYMTAB)
|
||||
sect.Length = uint64(state.datsize) - sect.Vaddr
|
||||
|
||||
/* gopclntab */
|
||||
sect = addrelrosection(".gopclntab")
|
||||
sect.Align = state.dataMaxAlign[sym.SPCLNTAB]
|
||||
datsize = Rnd(datsize, int64(sect.Align))
|
||||
sect.Vaddr = uint64(datsize)
|
||||
state.datsize = Rnd(state.datsize, int64(sect.Align))
|
||||
sect.Vaddr = uint64(state.datsize)
|
||||
ctxt.Syms.Lookup("runtime.pclntab", 0).Sect = sect
|
||||
ctxt.Syms.Lookup("runtime.epclntab", 0).Sect = sect
|
||||
for _, s := range state.data[sym.SPCLNTAB] {
|
||||
datsize = aligndatsize(datsize, s)
|
||||
state.datsize = aligndatsize(state.datsize, s)
|
||||
s.Sect = sect
|
||||
s.Type = sym.SRODATA
|
||||
s.Value = int64(uint64(datsize) - sect.Vaddr)
|
||||
datsize += s.Size
|
||||
s.Value = int64(uint64(state.datsize) - sect.Vaddr)
|
||||
state.datsize += s.Size
|
||||
}
|
||||
checkdatsize(ctxt, datsize, sym.SRODATA)
|
||||
sect.Length = uint64(datsize) - sect.Vaddr
|
||||
state.checkdatsize(sym.SRODATA)
|
||||
sect.Length = uint64(state.datsize) - sect.Vaddr
|
||||
|
||||
// 6g uses 4-byte relocation offsets, so the entire segment must fit in 32 bits.
|
||||
if datsize != int64(uint32(datsize)) {
|
||||
Errorf(nil, "read-only data segment too large: %d", datsize)
|
||||
if state.datsize != int64(uint32(state.datsize)) {
|
||||
Errorf(nil, "read-only data segment too large: %d", state.datsize)
|
||||
}
|
||||
|
||||
for symn := sym.SELFRXSECT; symn < sym.SXREF; symn++ {
|
||||
@ -1970,15 +1973,15 @@ func (state *dodataState) allocateSections(ctxt *Link) {
|
||||
sect = addsection(ctxt.Arch, &Segdwarf, s.Name, 04)
|
||||
sect.Sym = s
|
||||
sect.Align = 1
|
||||
datsize = Rnd(datsize, int64(sect.Align))
|
||||
sect.Vaddr = uint64(datsize)
|
||||
state.datsize = Rnd(state.datsize, int64(sect.Align))
|
||||
sect.Vaddr = uint64(state.datsize)
|
||||
s.Sect = sect
|
||||
s.Type = sym.SRODATA
|
||||
s.Value = int64(uint64(datsize) - sect.Vaddr)
|
||||
datsize += s.Size
|
||||
sect.Length = uint64(datsize) - sect.Vaddr
|
||||
s.Value = int64(uint64(state.datsize) - sect.Vaddr)
|
||||
state.datsize += s.Size
|
||||
sect.Length = uint64(state.datsize) - sect.Vaddr
|
||||
}
|
||||
checkdatsize(ctxt, datsize, sym.SDWARFSECT)
|
||||
state.checkdatsize(sym.SDWARFSECT)
|
||||
|
||||
for i < len(dwarfp) {
|
||||
curType := dwarfp[i].Type
|
||||
@ -1998,8 +2001,8 @@ func (state *dodataState) allocateSections(ctxt *Link) {
|
||||
sect = addsection(ctxt.Arch, &Segdwarf, sectname, 04)
|
||||
sect.Sym = ctxt.Syms.ROLookup(sectname, 0)
|
||||
sect.Align = 1
|
||||
datsize = Rnd(datsize, int64(sect.Align))
|
||||
sect.Vaddr = uint64(datsize)
|
||||
state.datsize = Rnd(state.datsize, int64(sect.Align))
|
||||
sect.Vaddr = uint64(state.datsize)
|
||||
for ; i < len(dwarfp); i++ {
|
||||
s := dwarfp[i]
|
||||
if s.Type != curType {
|
||||
@ -2007,9 +2010,9 @@ func (state *dodataState) allocateSections(ctxt *Link) {
|
||||
}
|
||||
s.Sect = sect
|
||||
s.Type = sym.SRODATA
|
||||
s.Value = int64(uint64(datsize) - sect.Vaddr)
|
||||
s.Value = int64(uint64(state.datsize) - sect.Vaddr)
|
||||
s.Attr |= sym.AttrLocal
|
||||
datsize += s.Size
|
||||
state.datsize += s.Size
|
||||
|
||||
if ctxt.HeadType == objabi.Haix && curType == sym.SDWARFLOC {
|
||||
// Update the size of .debug_loc for this symbol's
|
||||
@ -2017,8 +2020,8 @@ func (state *dodataState) allocateSections(ctxt *Link) {
|
||||
addDwsectCUSize(".debug_loc", s.File, uint64(s.Size))
|
||||
}
|
||||
}
|
||||
sect.Length = uint64(datsize) - sect.Vaddr
|
||||
checkdatsize(ctxt, datsize, curType)
|
||||
sect.Length = uint64(state.datsize) - sect.Vaddr
|
||||
state.checkdatsize(curType)
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user