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| author | Meng Zhuo <mengzhuo1203@gmail.com> | 2024-09-12 20:15:56 +0800 |
|---|---|---|
| committer | Meng Zhuo <mengzhuo@iscas.ac.cn> | 2025-02-19 17:54:34 -0800 |
| commit | cdc95607940b2acb66cb184dec08d4cc8a469042 (patch) | |
| tree | ba916b940165a00c7b47299369328213bcd10652 /src/cmd/link | |
| parent | 58083b57d4f8047d2749196a09b366926e8698da (diff) | |
| download | go-cdc95607940b2acb66cb184dec08d4cc8a469042.tar.xz | |
all: implement plugin build mode for riscv64
Change-Id: I8d7bbeebbf4a46f2fd8d630b1edbaf79b8ffccc5
Reviewed-on: https://go-review.googlesource.com/c/go/+/420114
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Joel Sing <joel@sing.id.au>
TryBot-Bypass: Joel Sing <joel@sing.id.au>
Diffstat (limited to 'src/cmd/link')
| -rw-r--r-- | src/cmd/link/internal/riscv64/asm.go | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/src/cmd/link/internal/riscv64/asm.go b/src/cmd/link/internal/riscv64/asm.go index 8e5d5be41e..527f09e17c 100644 --- a/src/cmd/link/internal/riscv64/asm.go +++ b/src/cmd/link/internal/riscv64/asm.go @@ -20,7 +20,26 @@ import ( // fakeLabelName matches the RISCV_FAKE_LABEL_NAME from binutils. const fakeLabelName = ".L0 " -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 + } + + // Emit the following function: + // + // go.link.addmoduledatainit: + // auipc a0, %pcrel_hi(local.moduledata) + // addi a0, %pcrel_lo(local.moduledata) + // j runtime.addmoduledata + + sz := initfunc.AddSymRef(ctxt.Arch, ctxt.Moduledata, 0, objabi.R_RISCV_PCREL_ITYPE, 8) + initfunc.SetUint32(ctxt.Arch, sz-8, 0x00000517) // auipc a0, %pcrel_hi(local.moduledata) + initfunc.SetUint32(ctxt.Arch, sz-4, 0x00050513) // addi a0, %pcrel_lo(local.moduledata) + + sz = initfunc.AddSymRef(ctxt.Arch, addmoduledata, 0, objabi.R_RISCV_JAL, 4) + initfunc.SetUint32(ctxt.Arch, sz-4, 0x0000006f) // j runtime.addmoduledata +} func findHI20Reloc(ldr *loader.Loader, s loader.Sym, val int64) *loader.Reloc { outer := ldr.OuterSym(s) |