cmd/6l, cmd/internal/ld: handle R_PCREL to function in other shared library
An ELF linker handles a PC-relative reference to an STT_FUNC defined in a
shared library by building a PLT entry and referring to that, so do the
same in 6l.
Fixes #10690
Change-Id: I061a96fd4400d957e301d0ac86760ce256910e1d
Reviewed-on: https://go-review.googlesource.com/9711
Run-TryBot: Michael Hudson-Doyle <michael.hudson@canonical.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
diff --git a/src/cmd/internal/ld/link.go b/src/cmd/internal/ld/link.go
index 52390e7..03da52a 100644
--- a/src/cmd/internal/ld/link.go
+++ b/src/cmd/internal/ld/link.go
@@ -32,26 +32,31 @@
import (
"cmd/internal/obj"
+ "debug/elf"
"encoding/binary"
)
type LSym struct {
- Name string
- Extname string
- Type int16
- Version int16
- Dupok uint8
- Cfunc uint8
- External uint8
- Nosplit uint8
- Reachable bool
- Cgoexport uint8
- Special uint8
- Stkcheck uint8
- Hide uint8
- Leaf uint8
- Localentry uint8
- Onlist uint8
+ Name string
+ Extname string
+ Type int16
+ Version int16
+ Dupok uint8
+ Cfunc uint8
+ External uint8
+ Nosplit uint8
+ Reachable bool
+ Cgoexport uint8
+ Special uint8
+ Stkcheck uint8
+ Hide uint8
+ Leaf uint8
+ Localentry uint8
+ Onlist uint8
+ // ElfType is set for symbols read from shared libraries by ldshlibsyms. It
+ // is not set for symbols defined by the packages being linked or by symbols
+ // read by ldelf (and so is left as elf.STT_NOTYPE).
+ ElfType elf.SymType
Dynid int32
Plt int32
Got int32
