On Fri, Nov 5, 2021 at 9:36 AM 'LUO Hailing' via golang-nuts
<golang-nuts@googlegroups.com> wrote:
>
> I'm new of golang linker, and I have a simple question about golang linker.
>
> PATH: go\src\cmd\link\internal\arm64\asm.go
> function:
> func elfreloc1(ctxt *ld.Link, out *ld.OutBuf, ldr *loader.Loader, s
> loader.Sym, r loader.ExtReloc, ri int, sectoff int64) bool {
> ...
> }
>
> In this function, it only emits some types of relocations into go.o as the
> following description. why?
> There still exist some other types of relocations.
>
> objabi.R_ADDR, objabi.R_DWARFSECREF -> elf.R_AARCH64_ABS32/elf.R_AARCH64_ABS64
> objabi.R_ADDRARM64 -> elf.R_AARCH64_ADR_PREL_PG_HI21 and
> elf.R_AARCH64_ADD_ABS_LO12_NC
> objabi.R_ARM64_TLS_LE -> elf.R_AARCH64_TLSLE_MOVW_TPREL_G0
> objabi.R_ARM64_TLS_IE -> elf.R_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21 and
> elf.R_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC
> objabi.R_ARM64_GOTPCREL -> elf.R_AARCH64_ADR_GOT_PAGE and
> elf.R_AARCH64_LD64_GOT_LO12_NC
> objabi.R_CALLARM64 -> elf.R_AARCH64_CALL26
What other relocation types actually occur in Go code?
If any do show up, the function will return false, and the call in
elfrelocsect will return an error.
Ian
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