1 /* $NetBSD: elf_machdep.h,v 1.5 2015/05/28 02:19:05 matt Exp $ */ 2 3 /*- 4 * Copyright (c) 2014 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Matt Thomas of 3am Software Foundry. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _RISCV_ELF_MACHDEP_H_ 33 #define _RISCV_ELF_MACHDEP_H_ 34 35 #define ELF32_MACHDEP_ID EM_RISCV 36 #define ELF64_MACHDEP_ID EM_RISCV 37 38 #define ELF32_MACHDEP_ENDIANNESS ELFDATA2LSB 39 #define ELF64_MACHDEP_ENDIANNESS ELFDATA2LSB 40 41 #define ELF32_MACHDEP_ID_CASES \ 42 case EM_RISCV: \ 43 break; 44 45 #define ELF64_MACHDEP_ID_CASES \ 46 case EM_RISCV: \ 47 break; 48 49 #ifdef _LP64 50 #define ARCH_ELFSIZE 64 /* MD native binary size */ 51 #else 52 #define ARCH_ELFSIZE 32 /* MD native binary size */ 53 #endif 54 55 /* Processor specific flags for the ELF header e_flags field. */ 56 57 /* Processor specific relocation types */ 58 59 #define R_RISCV_NONE 0 60 #define R_RISCV_32 1 // A 61 #define R_RISCV_64 2 62 #define R_RISCV_RELATIVE 3 63 #define R_RISCV_COPY 4 64 #define R_RISCV_JMP_SLOT 5 65 #define R_RISCV_TLS_DTPMOD32 6 66 #define R_RISCV_TLS_DTPREL32 7 67 #define R_RISCV_TLS_DTPMOD64 8 68 #define R_RISCV_TLS_DTPREL64 9 69 #define R_RISCV_TLS_TPREL32 10 70 #define R_RISCV_TLS_TPREL64 11 71 72 /* The rest are not used by the dynamic linker */ 73 #define R_RISCV_BRANCH 16 // (A - P) & 0xffff 74 #define R_RISCV_JAL 17 // A & 0xff 75 #define R_RISCV_CALL 18 // (A - P) & 0xff 76 #define R_RISCV_CALL_PLT 19 77 #define R_RISCV_GOT_HI20 20 78 #define R_RISCV_TLS_GOT_HI20 21 79 #define R_RISCV_TLS_GD_HI20 22 80 #define R_RISCV_PCREL_HI20 23 81 #define R_RISCV_PCREL_LO12_I 24 82 #define R_RISCV_PCREL_LO12_S 25 83 #define R_RISCV_HI20 26 // A & 0xffff 84 #define R_RISCV_LO12_I 27 // (A >> 16) & 0xffff 85 #define R_RISCV_LO12_S 28 // (S + A - P) >> 2 86 #define R_RISCV_TPREL_HI20 29 87 #define R_RISCV_TLREL_LO12_I 30 88 #define R_RISCV_TLREL_LO12_S 31 89 #define R_RISCV_TLREL_ADD 32 90 #define R_RISCV_ADD8 33 91 #define R_RISCV_ADD16 34 92 #define R_RISCV_ADD32 35 93 #define R_RISCV_ADD64 36 94 #define R_RISCV_SUB8 37 95 #define R_RISCV_SUB16 38 96 #define R_RISCV_SUB32 39 97 #define R_RISCV_SUB64 40 98 #define R_RISCV_GNU_VTINHERIT 41 // A & 0xffff 99 #define R_RISCV_GNU_VTENTRY 42 100 #define R_RISCV_ALIGN 43 101 #define R_RISCV_RVC_BRANCH 44 102 #define R_RISCV_RVC_JUMP 45 103 104 /* These are aliases we can use R_TYPESZ */ 105 #define R_RISCV_ADDR32 R_RISCV_32 106 #define R_RISCV_ADDR64 R_RISCV_64 107 108 #define R_TYPE(name) R_RISCV_ ## name 109 #if ELFSIZE == 32 110 #define R_TYPESZ(name) R_RISCV_ ## name ## 32 111 #else 112 #define R_TYPESZ(name) R_RISCV_ ## name ## 64 113 #endif 114 115 #ifdef _KERNEL 116 #ifdef ELFSIZE 117 #define ELF_MD_PROBE_FUNC ELFNAME2(cpu_netbsd,probe) 118 #endif 119 120 struct exec_package; 121 122 int cpu_netbsd_elf32_probe(struct lwp *, struct exec_package *, void *, char *, 123 vaddr_t *); 124 125 int cpu_netbsd_elf64_probe(struct lwp *, struct exec_package *, void *, char *, 126 vaddr_t *); 127 128 #endif /* _KERNEL */ 129 130 #endif /* _RISCV_ELF_MACHDEP_H_ */ 131