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[dev.link] cmd/link: add loader.ExtReloc to Archreloc2

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Non functional, but required by the majority of the architectures.

Change-Id: I57601016c28ce665a9d434e283a1db8bded9b133
Reviewed-on: https://go-review.googlesource.com/c/go/+/230858
Run-TryBot: Jeremy Faller <jeremy@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
This commit is contained in:
Jeremy Faller 2020-04-29 12:20:38 -04:00
parent f886ff7b41
commit 65c1805e77
3 changed files with 16 additions and 13 deletions
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20
src/cmd/link/internal/ld/lib.go
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@ -235,18 +235,18 @@ type Arch struct {
Adddynrel func(*Target, *loader.Loader, *ArchSyms, *sym.Symbol, *sym.Reloc) bool
Adddynrel2 func(*Target, *loader.Loader, *ArchSyms, loader.Sym, *loader.Reloc2, int) bool
Archinit func(*Link)
// Archreloc is an arch-specific hook that assists in
// relocation processing (invoked by 'relocsym'); it handles
// target-specific relocation tasks. Here "rel" is the current
// relocation being examined, "sym" is the symbol containing the
// chunk of data to which the relocation applies, and "off" is the
// contents of the to-be-relocated data item (from sym.P). Return
// value is the appropriately relocated value (to be written back
// to the same spot in sym.P) and a boolean indicating
// success/failure (a failing value indicates a fatal error).
// Archreloc is an arch-specific hook that assists in relocation processing
// (invoked by 'relocsym'); it handles target-specific relocation tasks.
// Here "rel" is the current relocation being examined, "sym" is the symbol
// containing the chunk of data to which the relocation applies, and "off"
// is the contents of the to-be-relocated data item (from sym.P). Return
// value is the appropriately relocated value (to be written back to the
// same spot in sym.P), a boolean indicating if the external relocations'
// been used, and a boolean indicating success/failure (a failing value
// indicates a fatal error).
Archreloc func(target *Target, syms *ArchSyms, rel *sym.Reloc, sym *sym.Symbol,
offset int64) (relocatedOffset int64, success bool)
Archreloc2 func(*Target, *loader.Loader, *ArchSyms, *loader.Reloc2, loader.Sym, int64) (int64, bool)
Archreloc2 func(*Target, *loader.Loader, *ArchSyms, *loader.Reloc2, *loader.ExtReloc, loader.Sym, int64) (int64, bool, bool)
// Archrelocvariant is a second arch-specific hook used for
// relocation processing; it handles relocations where r.Type is
// insufficient to describe the relocation (r.Variant !=