| From d6eefad445831c161fca130f9bdf7b3848aac23c Mon Sep 17 00:00:00 2001 |
| From: Paul Gortmaker <paul.gortmaker@windriver.com> |
| Date: Tue, 29 Mar 2016 21:14:33 -0400 |
| Subject: [PATCH] go-cross: backport "cmd/link: support new 386/amd64 |
| relocations" |
| |
| Newer binutils won't support building older go-1.4.3 as per: |
| |
| https://github.com/golang/go/issues/13114 |
| |
| Upstream commit 914db9f060b1fd3eb1f74d48f3bd46a73d4ae9c7 (see subj) |
| was identified as the fix and nominated for 1.4.4 but that release |
| never happened. The paths in 1.4.3 aren't the same as go1.6beta1~662 |
| where this commit appeared, but the NetBSD folks indicated what a |
| 1.4.3 backport would look like here: https://gnats.netbsd.org/50777 |
| |
| This is based on that, but without the BSD wrapper infrastructure |
| layer that makes things look like patches of patches. |
| |
| Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> |
| |
| Upstream-Status: Backport [ Partial ] |
| |
| diff --git a/src/cmd/6l/asm.c b/src/cmd/6l/asm.c |
| index 18b5aa311981..2e9d339aef87 100644 |
| --- a/src/cmd/6l/asm.c |
| +++ b/src/cmd/6l/asm.c |
| @@ -118,6 +118,8 @@ adddynrel(LSym *s, Reloc *r) |
| return; |
| |
| case 256 + R_X86_64_GOTPCREL: |
| + case 256 + R_X86_64_GOTPCRELX: |
| + case 256 + R_X86_64_REX_GOTPCRELX: |
| if(targ->type != SDYNIMPORT) { |
| // have symbol |
| if(r->off >= 2 && s->p[r->off-2] == 0x8b) { |
| diff --git a/src/cmd/8l/asm.c b/src/cmd/8l/asm.c |
| index 98c04240374f..cff29488e8af 100644 |
| --- a/src/cmd/8l/asm.c |
| +++ b/src/cmd/8l/asm.c |
| @@ -115,6 +115,7 @@ adddynrel(LSym *s, Reloc *r) |
| return; |
| |
| case 256 + R_386_GOT32: |
| + case 256 + R_386_GOT32X: |
| if(targ->type != SDYNIMPORT) { |
| // have symbol |
| if(r->off >= 2 && s->p[r->off-2] == 0x8b) { |
| diff --git a/src/cmd/ld/elf.h b/src/cmd/ld/elf.h |
| index e84d996f2596..bbf2cfaa3cc0 100644 |
| --- a/src/cmd/ld/elf.h |
| +++ b/src/cmd/ld/elf.h |
| @@ -478,32 +478,47 @@ typedef struct { |
| * Relocation types. |
| */ |
| |
| -#define R_X86_64_NONE 0 /* No relocation. */ |
| -#define R_X86_64_64 1 /* Add 64 bit symbol value. */ |
| -#define R_X86_64_PC32 2 /* PC-relative 32 bit signed sym value. */ |
| -#define R_X86_64_GOT32 3 /* PC-relative 32 bit GOT offset. */ |
| -#define R_X86_64_PLT32 4 /* PC-relative 32 bit PLT offset. */ |
| -#define R_X86_64_COPY 5 /* Copy data from shared object. */ |
| -#define R_X86_64_GLOB_DAT 6 /* Set GOT entry to data address. */ |
| -#define R_X86_64_JMP_SLOT 7 /* Set GOT entry to code address. */ |
| -#define R_X86_64_RELATIVE 8 /* Add load address of shared object. */ |
| -#define R_X86_64_GOTPCREL 9 /* Add 32 bit signed pcrel offset to GOT. */ |
| -#define R_X86_64_32 10 /* Add 32 bit zero extended symbol value */ |
| -#define R_X86_64_32S 11 /* Add 32 bit sign extended symbol value */ |
| -#define R_X86_64_16 12 /* Add 16 bit zero extended symbol value */ |
| -#define R_X86_64_PC16 13 /* Add 16 bit signed extended pc relative symbol value */ |
| -#define R_X86_64_8 14 /* Add 8 bit zero extended symbol value */ |
| -#define R_X86_64_PC8 15 /* Add 8 bit signed extended pc relative symbol value */ |
| -#define R_X86_64_DTPMOD64 16 /* ID of module containing symbol */ |
| -#define R_X86_64_DTPOFF64 17 /* Offset in TLS block */ |
| -#define R_X86_64_TPOFF64 18 /* Offset in static TLS block */ |
| -#define R_X86_64_TLSGD 19 /* PC relative offset to GD GOT entry */ |
| -#define R_X86_64_TLSLD 20 /* PC relative offset to LD GOT entry */ |
| -#define R_X86_64_DTPOFF32 21 /* Offset in TLS block */ |
| -#define R_X86_64_GOTTPOFF 22 /* PC relative offset to IE GOT entry */ |
| -#define R_X86_64_TPOFF32 23 /* Offset in static TLS block */ |
| - |
| -#define R_X86_64_COUNT 24 /* Count of defined relocation types. */ |
| +#define R_X86_64_NONE 0 |
| +#define R_X86_64_64 1 |
| +#define R_X86_64_PC32 2 |
| +#define R_X86_64_GOT32 3 |
| +#define R_X86_64_PLT32 4 |
| +#define R_X86_64_COPY 5 |
| +#define R_X86_64_GLOB_DAT 6 |
| +#define R_X86_64_JMP_SLOT 7 |
| +#define R_X86_64_RELATIVE 8 |
| +#define R_X86_64_GOTPCREL 9 |
| +#define R_X86_64_32 10 |
| +#define R_X86_64_32S 11 |
| +#define R_X86_64_16 12 |
| +#define R_X86_64_PC16 13 |
| +#define R_X86_64_8 14 |
| +#define R_X86_64_PC8 15 |
| +#define R_X86_64_DTPMOD64 16 |
| +#define R_X86_64_DTPOFF64 17 |
| +#define R_X86_64_TPOFF64 18 |
| +#define R_X86_64_TLSGD 19 |
| +#define R_X86_64_TLSLD 20 |
| +#define R_X86_64_DTPOFF32 21 |
| +#define R_X86_64_GOTTPOFF 22 |
| +#define R_X86_64_TPOFF32 23 |
| +#define R_X86_64_PC64 24 |
| +#define R_X86_64_GOTOFF64 25 |
| +#define R_X86_64_GOTPC32 26 |
| +#define R_X86_64_GOT64 27 |
| +#define R_X86_64_GOTPCREL64 28 |
| +#define R_X86_64_GOTPC64 29 |
| +#define R_X86_64_GOTPLT64 30 |
| +#define R_X86_64_PLTOFF64 31 |
| +#define R_X86_64_SIZE32 32 |
| +#define R_X86_64_SIZE64 33 |
| +#define R_X86_64_GOTPC32_TLSDEC 34 |
| +#define R_X86_64_TLSDESC_CALL 35 |
| +#define R_X86_64_TLSDESC 36 |
| +#define R_X86_64_IRELATIVE 37 |
| +#define R_X86_64_PC32_BND 40 |
| +#define R_X86_64_GOTPCRELX 41 |
| +#define R_X86_64_REX_GOTPCRELX 42 |
| |
| |
| #define R_ALPHA_NONE 0 /* No reloc */ |
| @@ -581,39 +596,42 @@ typedef struct { |
| #define R_ARM_COUNT 38 /* Count of defined relocation types. */ |
| |
| |
| -#define R_386_NONE 0 /* No relocation. */ |
| -#define R_386_32 1 /* Add symbol value. */ |
| -#define R_386_PC32 2 /* Add PC-relative symbol value. */ |
| -#define R_386_GOT32 3 /* Add PC-relative GOT offset. */ |
| -#define R_386_PLT32 4 /* Add PC-relative PLT offset. */ |
| -#define R_386_COPY 5 /* Copy data from shared object. */ |
| -#define R_386_GLOB_DAT 6 /* Set GOT entry to data address. */ |
| -#define R_386_JMP_SLOT 7 /* Set GOT entry to code address. */ |
| -#define R_386_RELATIVE 8 /* Add load address of shared object. */ |
| -#define R_386_GOTOFF 9 /* Add GOT-relative symbol address. */ |
| -#define R_386_GOTPC 10 /* Add PC-relative GOT table address. */ |
| -#define R_386_TLS_TPOFF 14 /* Negative offset in static TLS block */ |
| -#define R_386_TLS_IE 15 /* Absolute address of GOT for -ve static TLS */ |
| -#define R_386_TLS_GOTIE 16 /* GOT entry for negative static TLS block */ |
| -#define R_386_TLS_LE 17 /* Negative offset relative to static TLS */ |
| -#define R_386_TLS_GD 18 /* 32 bit offset to GOT (index,off) pair */ |
| -#define R_386_TLS_LDM 19 /* 32 bit offset to GOT (index,zero) pair */ |
| -#define R_386_TLS_GD_32 24 /* 32 bit offset to GOT (index,off) pair */ |
| -#define R_386_TLS_GD_PUSH 25 /* pushl instruction for Sun ABI GD sequence */ |
| -#define R_386_TLS_GD_CALL 26 /* call instruction for Sun ABI GD sequence */ |
| -#define R_386_TLS_GD_POP 27 /* popl instruction for Sun ABI GD sequence */ |
| -#define R_386_TLS_LDM_32 28 /* 32 bit offset to GOT (index,zero) pair */ |
| -#define R_386_TLS_LDM_PUSH 29 /* pushl instruction for Sun ABI LD sequence */ |
| -#define R_386_TLS_LDM_CALL 30 /* call instruction for Sun ABI LD sequence */ |
| -#define R_386_TLS_LDM_POP 31 /* popl instruction for Sun ABI LD sequence */ |
| -#define R_386_TLS_LDO_32 32 /* 32 bit offset from start of TLS block */ |
| -#define R_386_TLS_IE_32 33 /* 32 bit offset to GOT static TLS offset entry */ |
| -#define R_386_TLS_LE_32 34 /* 32 bit offset within static TLS block */ |
| -#define R_386_TLS_DTPMOD32 35 /* GOT entry containing TLS index */ |
| -#define R_386_TLS_DTPOFF32 36 /* GOT entry containing TLS offset */ |
| -#define R_386_TLS_TPOFF32 37 /* GOT entry of -ve static TLS offset */ |
| - |
| -#define R_386_COUNT 38 /* Count of defined relocation types. */ |
| +#define R_386_NONE 0 |
| +#define R_386_32 1 |
| +#define R_386_PC32 2 |
| +#define R_386_GOT32 3 |
| +#define R_386_PLT32 4 |
| +#define R_386_COPY 5 |
| +#define R_386_GLOB_DAT 6 |
| +#define R_386_JMP_SLOT 7 |
| +#define R_386_RELATIVE 8 |
| +#define R_386_GOTOFF 9 |
| +#define R_386_GOTPC 10 |
| +#define R_386_TLS_TPOFF 14 |
| +#define R_386_TLS_IE 15 |
| +#define R_386_TLS_GOTIE 16 |
| +#define R_386_TLS_LE 17 |
| +#define R_386_TLS_GD 18 |
| +#define R_386_TLS_LDM 19 |
| +#define R_386_TLS_GD_32 24 |
| +#define R_386_TLS_GD_PUSH 25 |
| +#define R_386_TLS_GD_CALL 26 |
| +#define R_386_TLS_GD_POP 27 |
| +#define R_386_TLS_LDM_32 28 |
| +#define R_386_TLS_LDM_PUSH 29 |
| +#define R_386_TLS_LDM_CALL 30 |
| +#define R_386_TLS_LDM_POP 31 |
| +#define R_386_TLS_LDO_32 32 |
| +#define R_386_TLS_IE_32 33 |
| +#define R_386_TLS_LE_32 34 |
| +#define R_386_TLS_DTPMOD32 35 |
| +#define R_386_TLS_DTPOFF32 36 |
| +#define R_386_TLS_TPOFF32 37 |
| +#define R_386_TLS_GOTDESC 39 |
| +#define R_386_TLS_DESC_CALL 40 |
| +#define R_386_TLS_DESC 41 |
| +#define R_386_IRELATIVE 42 |
| +#define R_386_GOT32X 43 |
| |
| #define R_PPC_NONE 0 /* No relocation. */ |
| #define R_PPC_ADDR32 1 |
| diff --git a/src/cmd/ld/ldelf.c b/src/cmd/ld/ldelf.c |
| index dd5fa0d2a839..2e2fbd17377f 100644 |
| --- a/src/cmd/ld/ldelf.c |
| +++ b/src/cmd/ld/ldelf.c |
| @@ -888,12 +888,15 @@ reltype(char *pn, int elftype, uchar *siz) |
| case R('6', R_X86_64_PC32): |
| case R('6', R_X86_64_PLT32): |
| case R('6', R_X86_64_GOTPCREL): |
| + case R('6', R_X86_64_GOTPCRELX): |
| + case R('6', R_X86_64_REX_GOTPCRELX): |
| case R('8', R_386_32): |
| case R('8', R_386_PC32): |
| case R('8', R_386_GOT32): |
| case R('8', R_386_PLT32): |
| case R('8', R_386_GOTOFF): |
| case R('8', R_386_GOTPC): |
| + case R('8', R_386_GOT32X): |
| *siz = 4; |
| break; |
| case R('6', R_X86_64_64): |
| -- |
| 2.7.2 |
| |