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/* $NetBSD: elf_machdep.h,v 1.6 2017/11/06 03:47:48 christos Exp $ */
/*-
* Copyright (c) 2019 Hesham Almatary
*
* Copyright (c) 2014 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Matt Thomas of 3am Software Foundry.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _RISCV_ELF_MACHDEP_H_
#define _RISCV_ELF_MACHDEP_H_
#define EM_RISCV 243
#define ELF32_MACHDEP_ID EM_RISCV
#define ELF64_MACHDEP_ID EM_RISCV
#define ELF32_MACHDEP_ENDIANNESS ELFDATA2LSB
#define ELF64_MACHDEP_ENDIANNESS ELFDATA2LSB
#define ELF32_MACHDEP_ID_CASES \
case EM_RISCV: \
break;
#define ELF64_MACHDEP_ID_CASES \
case EM_RISCV: \
break;
#define KERN_ELFSIZE 32
#ifdef _LP64
#define ARCH_ELFSIZE 64 /* MD native binary size */
#else
#define ARCH_ELFSIZE 32 /* MD native binary size */
#endif
/* Processor specific flags for the ELF header e_flags field. */
/* Processor specific relocation types */
#define R_RISCV_NONE 0
#define R_RISCV_32 1 // A
#define R_RISCV_64 2
#define R_RISCV_RELATIVE 3
#define R_RISCV_COPY 4
#define R_RISCV_JMP_SLOT 5
#define R_RISCV_TLS_DTPMOD32 6
#define R_RISCV_TLS_DTPREL32 7
#define R_RISCV_TLS_DTPMOD64 8
#define R_RISCV_TLS_DTPREL64 9
#define R_RISCV_TLS_TPREL32 10
#define R_RISCV_TLS_TPREL64 11
/* The rest are not used by the dynamic linker */
#define R_RISCV_BRANCH 16 // (A - P) & 0xffff
#define R_RISCV_JAL 17 // A & 0xff
#define R_RISCV_CALL 18 // (A - P) & 0xff
#define R_RISCV_CALL_PLT 19
#define R_RISCV_GOT_HI20 20
#define R_RISCV_TLS_GOT_HI20 21
#define R_RISCV_TLS_GD_HI20 22
#define R_RISCV_PCREL_HI20 23
#define R_RISCV_PCREL_LO12_I 24
#define R_RISCV_PCREL_LO12_S 25
#define R_RISCV_HI20 26 // A & 0xffff
#define R_RISCV_LO12_I 27 // (A >> 16) & 0xffff
#define R_RISCV_LO12_S 28 // (S + A - P) >> 2
#define R_RISCV_TPREL_HI20 29
#define R_RISCV_TPREL_LO12_I 30
#define R_RISCV_TPREL_LO12_S 31
#define R_RISCV_TPREL_ADD 32
#define R_RISCV_ADD8 33
#define R_RISCV_ADD16 34
#define R_RISCV_ADD32 35
#define R_RISCV_ADD64 36
#define R_RISCV_SUB8 37
#define R_RISCV_SUB16 38
#define R_RISCV_SUB32 39
#define R_RISCV_SUB64 40
#define R_RISCV_GNU_VTINHERIT 41 // A & 0xffff
#define R_RISCV_GNU_VTENTRY 42
#define R_RISCV_ALIGN 43
#define R_RISCV_RVC_BRANCH 44
#define R_RISCV_RVC_JUMP 45
#define R_RISCV_RVC_LUI 46
#define R_RISCV_RELAX 51
#define R_RISCV_SUB6 52
#define R_RISCV_SET6 53
#define R_RISCV_SET8 54
#define R_RISCV_SET16 55
#define R_RISCV_SET32 56
#define R_RISCV_32_PCREL 57
/* These are aliases we can use R_TYPESZ */
#define R_RISCV_ADDR32 R_RISCV_32
#define R_RISCV_ADDR64 R_RISCV_64
#define R_TYPE(name) R_RISCV_ ## name
#if ELFSIZE == 32
#define R_TYPESZ(name) R_RISCV_ ## name ## 32
#else
#define R_TYPESZ(name) R_RISCV_ ## name ## 64
#endif
#ifdef _KERNEL
#ifdef ELFSIZE
#define ELF_MD_PROBE_FUNC ELFNAME2(cpu_netbsd,probe)
#endif
struct exec_package;
int cpu_netbsd_elf32_probe(struct lwp *, struct exec_package *, void *, char *,
vaddr_t *);
int cpu_netbsd_elf64_probe(struct lwp *, struct exec_package *, void *, char *,
vaddr_t *);
#endif /* _KERNEL */
#endif /* _RISCV_ELF_MACHDEP_H_ */
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