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| author | WANG Xuerui <git@xen0n.name> | 2022-12-13 16:30:45 +0800 |
|---|---|---|
| committer | David Chase <drchase@google.com> | 2023-11-21 18:56:21 +0000 |
| commit | d7fcb5cf80953f1d63246f1ae9defa60c5ce2d76 (patch) | |
| tree | 7dcd3bcf9bf99162cac908928986e8bb1740c2ee /src/cmd/link | |
| parent | 7b26cb954050291b593b36170d25214e948ceba5 (diff) | |
| download | go-d7fcb5cf80953f1d63246f1ae9defa60c5ce2d76.tar.xz | |
cmd/dist, cmd/link, internal, runtime: implement buildmode=plugin for linux/loong64
According to review, buildmode=shared has unfixed shortcomings and
should be considered legacy at this time. So only buildmode=plugin is
going to be added for loong64 which is a relatively new platform.
Change-Id: Iac0b9f57e4ee01755458e180bb24d1b2a146fdf0
Reviewed-on: https://go-review.googlesource.com/c/go/+/480878
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Run-TryBot: WANG Xuerui <git@xen0n.name>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: abner chenc <chenguoqi@loongson.cn>
Reviewed-by: Meidan Li <limeidan@loongson.cn>
Diffstat (limited to 'src/cmd/link')
| -rw-r--r-- | src/cmd/link/internal/loong64/asm.go | 42 |
1 files changed, 41 insertions, 1 deletions
diff --git a/src/cmd/link/internal/loong64/asm.go b/src/cmd/link/internal/loong64/asm.go index fc7bad9039..6607e5dc64 100644 --- a/src/cmd/link/internal/loong64/asm.go +++ b/src/cmd/link/internal/loong64/asm.go @@ -14,7 +14,47 @@ import ( "log" ) -func gentext(ctxt *ld.Link, ldr *loader.Loader) {} +func gentext(ctxt *ld.Link, ldr *loader.Loader) { + initfunc, addmoduledata := ld.PrepareAddmoduledata(ctxt) + if initfunc == nil { + return + } + + o := func(op uint32) { + initfunc.AddUint32(ctxt.Arch, op) + } + + // Emit the following function: + // + // local.dso_init: + // la.pcrel $a0, local.moduledata + // b runtime.addmoduledata + + // 0000000000000000 <local.dso_init>: + // 0: 1a000004 pcalau12i $a0, 0 + // 0: R_LARCH_PCALA_HI20 local.moduledata + o(0x1a000004) + rel, _ := initfunc.AddRel(objabi.R_ADDRLOONG64U) + rel.SetOff(0) + rel.SetSiz(4) + rel.SetSym(ctxt.Moduledata) + + // 4: 02c00084 addi.d $a0, $a0, 0 + // 4: R_LARCH_PCALA_LO12 local.moduledata + o(0x02c00084) + rel2, _ := initfunc.AddRel(objabi.R_ADDRLOONG64) + rel2.SetOff(4) + rel2.SetSiz(4) + rel2.SetSym(ctxt.Moduledata) + + // 8: 50000000 b 0 + // 8: R_LARCH_B26 runtime.addmoduledata + o(0x50000000) + rel3, _ := initfunc.AddRel(objabi.R_CALLLOONG64) + rel3.SetOff(8) + rel3.SetSiz(4) + rel3.SetSym(addmoduledata) +} func adddynrel(target *ld.Target, ldr *loader.Loader, syms *ld.ArchSyms, s loader.Sym, r loader.Reloc, rIdx int) bool { log.Fatalf("adddynrel not implemented") |