| /* RISC-V ELF support for BFD. |
| Copyright (C) 2011-2021 Free Software Foundation, Inc. |
| |
| Contributed by Andrew Waterman (andrew@sifive.com). |
| Based on MIPS ELF support for BFD, by Ian Lance Taylor. |
| |
| This file is part of BFD, the Binary File Descriptor library. |
| |
| 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 <http://www.gnu.org/licenses/>. */ |
| |
| /* This file holds definitions specific to the RISCV ELF ABI. Note |
| that most of this is not actually implemented by BFD. */ |
| |
| #ifndef _ELF_RISCV_H |
| #define _ELF_RISCV_H |
| |
| #include "elf/reloc-macros.h" |
| #include "libiberty.h" |
| |
| /* Relocation types. */ |
| START_RELOC_NUMBERS (elf_riscv_reloc_type) |
| /* Relocation types used by the dynamic linker. */ |
| RELOC_NUMBER (R_RISCV_NONE, 0) |
| RELOC_NUMBER (R_RISCV_32, 1) |
| RELOC_NUMBER (R_RISCV_64, 2) |
| RELOC_NUMBER (R_RISCV_RELATIVE, 3) |
| RELOC_NUMBER (R_RISCV_COPY, 4) |
| RELOC_NUMBER (R_RISCV_JUMP_SLOT, 5) |
| RELOC_NUMBER (R_RISCV_TLS_DTPMOD32, 6) |
| RELOC_NUMBER (R_RISCV_TLS_DTPMOD64, 7) |
| RELOC_NUMBER (R_RISCV_TLS_DTPREL32, 8) |
| RELOC_NUMBER (R_RISCV_TLS_DTPREL64, 9) |
| RELOC_NUMBER (R_RISCV_TLS_TPREL32, 10) |
| RELOC_NUMBER (R_RISCV_TLS_TPREL64, 11) |
| |
| /* Relocation types not used by the dynamic linker. */ |
| RELOC_NUMBER (R_RISCV_BRANCH, 16) |
| RELOC_NUMBER (R_RISCV_JAL, 17) |
| RELOC_NUMBER (R_RISCV_CALL, 18) |
| RELOC_NUMBER (R_RISCV_CALL_PLT, 19) |
| RELOC_NUMBER (R_RISCV_GOT_HI20, 20) |
| RELOC_NUMBER (R_RISCV_TLS_GOT_HI20, 21) |
| RELOC_NUMBER (R_RISCV_TLS_GD_HI20, 22) |
| RELOC_NUMBER (R_RISCV_PCREL_HI20, 23) |
| RELOC_NUMBER (R_RISCV_PCREL_LO12_I, 24) |
| RELOC_NUMBER (R_RISCV_PCREL_LO12_S, 25) |
| RELOC_NUMBER (R_RISCV_HI20, 26) |
| RELOC_NUMBER (R_RISCV_LO12_I, 27) |
| RELOC_NUMBER (R_RISCV_LO12_S, 28) |
| RELOC_NUMBER (R_RISCV_TPREL_HI20, 29) |
| RELOC_NUMBER (R_RISCV_TPREL_LO12_I, 30) |
| RELOC_NUMBER (R_RISCV_TPREL_LO12_S, 31) |
| RELOC_NUMBER (R_RISCV_TPREL_ADD, 32) |
| RELOC_NUMBER (R_RISCV_ADD8, 33) |
| RELOC_NUMBER (R_RISCV_ADD16, 34) |
| RELOC_NUMBER (R_RISCV_ADD32, 35) |
| RELOC_NUMBER (R_RISCV_ADD64, 36) |
| RELOC_NUMBER (R_RISCV_SUB8, 37) |
| RELOC_NUMBER (R_RISCV_SUB16, 38) |
| RELOC_NUMBER (R_RISCV_SUB32, 39) |
| RELOC_NUMBER (R_RISCV_SUB64, 40) |
| RELOC_NUMBER (R_RISCV_GNU_VTINHERIT, 41) |
| RELOC_NUMBER (R_RISCV_GNU_VTENTRY, 42) |
| RELOC_NUMBER (R_RISCV_ALIGN, 43) |
| RELOC_NUMBER (R_RISCV_RVC_BRANCH, 44) |
| RELOC_NUMBER (R_RISCV_RVC_JUMP, 45) |
| RELOC_NUMBER (R_RISCV_RVC_LUI, 46) |
| RELOC_NUMBER (R_RISCV_GPREL_I, 47) |
| RELOC_NUMBER (R_RISCV_GPREL_S, 48) |
| RELOC_NUMBER (R_RISCV_TPREL_I, 49) |
| RELOC_NUMBER (R_RISCV_TPREL_S, 50) |
| RELOC_NUMBER (R_RISCV_RELAX, 51) |
| RELOC_NUMBER (R_RISCV_SUB6, 52) |
| RELOC_NUMBER (R_RISCV_SET6, 53) |
| RELOC_NUMBER (R_RISCV_SET8, 54) |
| RELOC_NUMBER (R_RISCV_SET16, 55) |
| RELOC_NUMBER (R_RISCV_SET32, 56) |
| RELOC_NUMBER (R_RISCV_32_PCREL, 57) |
| RELOC_NUMBER (R_RISCV_IRELATIVE, 58) |
| END_RELOC_NUMBERS (R_RISCV_max) |
| |
| /* Processor specific flags for the ELF header e_flags field. */ |
| |
| /* File may contain compressed instructions. */ |
| #define EF_RISCV_RVC 0x0001 |
| |
| /* Which floating-point ABI a file uses. */ |
| #define EF_RISCV_FLOAT_ABI 0x0006 |
| |
| /* File uses the soft-float ABI. */ |
| #define EF_RISCV_FLOAT_ABI_SOFT 0x0000 |
| |
| /* File uses the single-float ABI. */ |
| #define EF_RISCV_FLOAT_ABI_SINGLE 0x0002 |
| |
| /* File uses the double-float ABI. */ |
| #define EF_RISCV_FLOAT_ABI_DOUBLE 0x0004 |
| |
| /* File uses the quad-float ABI. */ |
| #define EF_RISCV_FLOAT_ABI_QUAD 0x0006 |
| |
| /* File uses the 32E base integer instruction. */ |
| #define EF_RISCV_RVE 0x0008 |
| |
| /* The name of the global pointer symbol. */ |
| #define RISCV_GP_SYMBOL "__global_pointer$" |
| |
| /* Additional section types. */ |
| #define SHT_RISCV_ATTRIBUTES 0x70000003 /* Section holds attributes. */ |
| |
| /* Processor specific program header types. */ |
| |
| /* Location of RISC-V ELF attribute section. */ |
| #define PT_RISCV_ATTRIBUTES 0x70000003 |
| |
| /* Object attributes. */ |
| enum |
| { |
| /* 0-3 are generic. */ |
| Tag_RISCV_stack_align = 4, |
| Tag_RISCV_arch = 5, |
| Tag_RISCV_unaligned_access = 6, |
| Tag_RISCV_priv_spec = 8, |
| Tag_RISCV_priv_spec_minor = 10, |
| Tag_RISCV_priv_spec_revision = 12 |
| }; |
| |
| #endif /* _ELF_RISCV_H */ |
