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cmd/link: move ElfType field in sym.Symbol to cold section

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The sym.Symbol 'ElfType' field is used only for symbols corresponding
to things in imported shared libraries, hence is not needed in the
common case. Relocate it to sym.AuxSymbol so as to shrink the main
Symbol struct.

Updates #26186

Change-Id: I803efc561c31a0ca1d93eca434fda1c862a7b2c5
Reviewed-on: https://go-review.googlesource.com/125479
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Than McIntosh 2018-07-18 10:19:35 -04:00
parent f78cc1324a
commit dd9e81f678
6 changed files with 34 additions and 17 deletions
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2
src/cmd/link/internal/ld/lib.go
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@ -1706,7 +1706,7 @@ func ldshlibsyms(ctxt *Link, shlib string) {
continue
}
lsym.Type = sym.SDYNIMPORT
lsym.ElfType = elf.ST_TYPE(elfsym.Info)
lsym.SetElfType(elf.ST_TYPE(elfsym.Info))
lsym.Size = int64(elfsym.Size)
if elfsym.Section != elf.SHN_UNDEF {
// Set .File for the library that actually defines the symbol.