From e214f8db56f65531b0a5ec296c42339dcaa5af31 Mon Sep 17 00:00:00 2001 From: liuzhensong Date: Fri, 22 Oct 2021 16:42:03 +0800 Subject: LoongArch bfd support 2021-10-22 Chenghua Xu Zhensong Liu Weinan Liu bfd/ * Makefile.am: Add LoongArch. * archures.c: Likewise. * config.bfd: Likewise. * configure.ac: Likewise. * cpu-loongarch.c: New. * elf-bfd.h: Add LoongArch. * elf.c: Add LoongArch elfcore_grok_xxx. * elfnn-loongarch.c: New. * elfxx-loongarch.c: New. * elfxx-loongarch.h: New. * reloc.c: Add LoongArch BFD RELOC ENUM. * targets.c: Add LoongArch target. * Makefile.in: Regenerate. * bfd-in2.h: Regenerate. * configure: Regenerate. * libbfd.h: Regenerate. * po/BLD-POTFILES.in: Regenerate. * po/SRC-POTFILES.in: Regenerate. include/ * elf/common.h: Add NT_LARCH_{CPUCFG,CSR,LSX,LASX}. * elf/loongarch.h: New. --- include/elf/common.h | 12 ++++- include/elf/loongarch.h | 119 ++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 130 insertions(+), 1 deletion(-) create mode 100644 include/elf/loongarch.h (limited to 'include') diff --git a/include/elf/common.h b/include/elf/common.h index efb7ff0..42dadbb 100644 --- a/include/elf/common.h +++ b/include/elf/common.h @@ -686,8 +686,18 @@ /* note name must be "LINUX". */ #define NT_ARC_V2 0x600 /* ARC HS accumulator/extra registers. */ /* note name must be "LINUX". */ -#define NT_RISCV_CSR 0x900 /* RISC-V Control and Status Registers */ +#define NT_LARCH_CPUCFG 0xa00 /* LoongArch CPU config registers */ + /* note name must be "LINUX". */ +#define NT_LARCH_CSR 0xa01 /* LoongArch Control State Registers */ + /* note name must be "LINUX". */ +#define NT_LARCH_LSX 0xa02 /* LoongArch SIMD eXtension registers */ + /* note name must be "LINUX". */ +#define NT_LARCH_LASX 0xa03 /* LoongArch Advanced SIMD eXtension registers */ + /* note name must be "LINUX". */ +#define NT_LARCH_LBT 0xa04 /* LoongArch Binary Translation registers */ /* note name must be "CORE". */ +#define NT_RISCV_CSR 0x900 /* RISC-V Control and Status Registers */ + /* note name must be "LINUX". */ #define NT_SIGINFO 0x53494749 /* Fields of siginfo_t. */ #define NT_FILE 0x46494c45 /* Description of mapped files. */ diff --git a/include/elf/loongarch.h b/include/elf/loongarch.h new file mode 100644 index 0000000..b4d801a --- /dev/null +++ b/include/elf/loongarch.h @@ -0,0 +1,119 @@ +/* Copyright (C) 2021 Free Software Foundation, Inc. + Contributed by Loongson Ltd. + + This file is part of GNU Binutils. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the license, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; see the file COPYING3. If not, + see . */ + +#ifndef _ELF_LOONGARCH_H +#define _ELF_LOONGARCH_H + +#include "elf/reloc-macros.h" +#include "libiberty.h" + +START_RELOC_NUMBERS (elf_loongarch_reloc_type) +/* Used by the dynamic linker. */ +RELOC_NUMBER (R_LARCH_NONE, 0) +RELOC_NUMBER (R_LARCH_32, 1) +RELOC_NUMBER (R_LARCH_64, 2) +RELOC_NUMBER (R_LARCH_RELATIVE, 3) +RELOC_NUMBER (R_LARCH_COPY, 4) +RELOC_NUMBER (R_LARCH_JUMP_SLOT, 5) +RELOC_NUMBER (R_LARCH_TLS_DTPMOD32, 6) +RELOC_NUMBER (R_LARCH_TLS_DTPMOD64, 7) +RELOC_NUMBER (R_LARCH_TLS_DTPREL32, 8) +RELOC_NUMBER (R_LARCH_TLS_DTPREL64, 9) +RELOC_NUMBER (R_LARCH_TLS_TPREL32, 10) +RELOC_NUMBER (R_LARCH_TLS_TPREL64, 11) +RELOC_NUMBER (R_LARCH_IRELATIVE, 12) + +/* Reserved for future relocs that the dynamic linker must understand. */ + +/* Used by the static linker for relocating .text. */ +RELOC_NUMBER (R_LARCH_MARK_LA, 20) +RELOC_NUMBER (R_LARCH_MARK_PCREL, 21) + +RELOC_NUMBER (R_LARCH_SOP_PUSH_PCREL, 22) + +RELOC_NUMBER (R_LARCH_SOP_PUSH_ABSOLUTE, 23) + +RELOC_NUMBER (R_LARCH_SOP_PUSH_DUP, 24) +RELOC_NUMBER (R_LARCH_SOP_PUSH_GPREL, 25) +RELOC_NUMBER (R_LARCH_SOP_PUSH_TLS_TPREL, 26) +RELOC_NUMBER (R_LARCH_SOP_PUSH_TLS_GOT, 27) +RELOC_NUMBER (R_LARCH_SOP_PUSH_TLS_GD, 28) +RELOC_NUMBER (R_LARCH_SOP_PUSH_PLT_PCREL, 29) + +RELOC_NUMBER (R_LARCH_SOP_ASSERT, 30) +RELOC_NUMBER (R_LARCH_SOP_NOT, 31) +RELOC_NUMBER (R_LARCH_SOP_SUB, 32) +RELOC_NUMBER (R_LARCH_SOP_SL, 33) +RELOC_NUMBER (R_LARCH_SOP_SR, 34) +RELOC_NUMBER (R_LARCH_SOP_ADD, 35) +RELOC_NUMBER (R_LARCH_SOP_AND, 36) +RELOC_NUMBER (R_LARCH_SOP_IF_ELSE, 37) +RELOC_NUMBER (R_LARCH_SOP_POP_32_S_10_5, 38) +RELOC_NUMBER (R_LARCH_SOP_POP_32_U_10_12, 39) +RELOC_NUMBER (R_LARCH_SOP_POP_32_S_10_12, 40) +RELOC_NUMBER (R_LARCH_SOP_POP_32_S_10_16, 41) +RELOC_NUMBER (R_LARCH_SOP_POP_32_S_10_16_S2, 42) +RELOC_NUMBER (R_LARCH_SOP_POP_32_S_5_20, 43) +RELOC_NUMBER (R_LARCH_SOP_POP_32_S_0_5_10_16_S2, 44) +RELOC_NUMBER (R_LARCH_SOP_POP_32_S_0_10_10_16_S2, 45) +RELOC_NUMBER (R_LARCH_SOP_POP_32_U, 46) + +/* Used by the static linker for relocating non .text. */ +RELOC_NUMBER (R_LARCH_ADD8, 47) +RELOC_NUMBER (R_LARCH_ADD16, 48) +RELOC_NUMBER (R_LARCH_ADD24, 49) +RELOC_NUMBER (R_LARCH_ADD32, 50) +RELOC_NUMBER (R_LARCH_ADD64, 51) +RELOC_NUMBER (R_LARCH_SUB8, 52) +RELOC_NUMBER (R_LARCH_SUB16, 53) +RELOC_NUMBER (R_LARCH_SUB24, 54) +RELOC_NUMBER (R_LARCH_SUB32, 55) +RELOC_NUMBER (R_LARCH_SUB64, 56) + +/* I don't know what it is. Existing in almost all other arch. */ +RELOC_NUMBER (R_LARCH_GNU_VTINHERIT, 57) +RELOC_NUMBER (R_LARCH_GNU_VTENTRY, 58) + +END_RELOC_NUMBERS (R_LARCH_count) + +/* Processor specific flags for the ELF header e_flags field. */ +#define EF_LOONGARCH_ABI_ILP32 0b01 +#define EF_LOONGARCH_ABI_LP64 0b11 +#define EF_LOONGARCH_ABI_MASK 0b11 + +#define EF_LOONGARCH_FLOAT_ABI_SOFT 0b001100 +#define EF_LOONGARCH_FLOAT_ABI_SINGLE 0b001000 +#define EF_LOONGARCH_FLOAT_ABI_DOUBLE 0b000000 +#define EF_LOONGARCH_FLOAT_ABI_MASK 0b111100 + +#define EF_LOONGARCH_IS_LP64(abi) \ + ((abi & EF_LOONGARCH_ABI_MASK) == EF_LOONGARCH_ABI_LP64) +#define EF_LOONGARCH_IS_ILP32(abi) \ + ((abi & EF_LOONGARCH_ABI_MASK) == EF_LOONGARCH_ABI_ILP32) + +#define EF_LOONGARCH_IS_SOFT_FLOAT(abi) \ + ((abi & EF_LOONGARCH_FLOAT_ABI_MASK) == EF_LOONGARCH_FLOAT_ABI_SOFT) +#define EF_LOONGARCH_IS_SINGLE_FLOAT(abi) \ + ((abi & EF_LOONGARCH_FLOAT_ABI_MASK) == EF_LOONGARCH_FLOAT_ABI_SINGLE) +#define EF_LOONGARCH_IS_DOUBLE_FLOAT(abi) \ + ((abi & EF_LOONGARCH_FLOAT_ABI_MASK) == EF_LOONGARCH_FLOAT_ABI_DOUBLE) + +#define EF_LOONGARCH_ABI (EF_LOONGARCH_ABI_MASK | EF_LOONGARCH_FLOAT_ABI_MASK) + +#endif /* _ELF_LOONGARCH_H */ -- cgit v1.1