1/*- 2 * Copyright (c) 1996-1997 John D. Polstra. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD: stable/11/sys/riscv/include/elf.h 325810 2017-11-14 16:03:07Z jhb $ 27 */ 28 29#ifndef _MACHINE_ELF_H_ 30#define _MACHINE_ELF_H_ 31 32/* 33 * ELF definitions for the RISC-V architecture. 34 */ 35 36#include <sys/elf32.h> /* Definitions common to all 32 bit architectures. */ 37#include <sys/elf64.h> /* Definitions common to all 64 bit architectures. */ 38 39#define __ELF_WORD_SIZE 64 /* Used by <sys/elf_generic.h> */ 40#include <sys/elf_generic.h> 41 42/* 43 * Auxiliary vector entries for passing information to the interpreter. 44 */ 45 46typedef struct { /* Auxiliary vector entry on initial stack */ 47 int a_type; /* Entry type. */ 48 union { 49 int a_val; /* Integer value. */ 50 } a_un; 51} Elf32_Auxinfo; 52 53typedef struct { /* Auxiliary vector entry on initial stack */ 54 long a_type; /* Entry type. */ 55 union { 56 long a_val; /* Integer value. */ 57 void *a_ptr; /* Address. */ 58 void (*a_fcn)(void); /* Function pointer (not used). */ 59 } a_un; 60} Elf64_Auxinfo; 61 62__ElfType(Auxinfo); 63 64#define ELF_ARCH EM_RISCV 65 66#define ELF_MACHINE_OK(x) ((x) == (ELF_ARCH)) 67 68/* Values for a_type. */ 69#define AT_NULL 0 /* Terminates the vector. */ 70#define AT_IGNORE 1 /* Ignored entry. */ 71#define AT_EXECFD 2 /* File descriptor of program to load. */ 72#define AT_PHDR 3 /* Program header of program already loaded. */ 73#define AT_PHENT 4 /* Size of each program header entry. */ 74#define AT_PHNUM 5 /* Number of program header entries. */ 75#define AT_PAGESZ 6 /* Page size in bytes. */ 76#define AT_BASE 7 /* Interpreter's base address. */ 77#define AT_FLAGS 8 /* Flags (unused). */ 78#define AT_ENTRY 9 /* Where interpreter should transfer control. */ 79#define AT_NOTELF 10 /* Program is not ELF ?? */ 80#define AT_UID 11 /* Real uid. */ 81#define AT_EUID 12 /* Effective uid. */ 82#define AT_GID 13 /* Real gid. */ 83#define AT_EGID 14 /* Effective gid. */ 84#define AT_EXECPATH 15 /* Path to the executable. */ 85#define AT_CANARY 16 /* Canary for SSP */ 86#define AT_CANARYLEN 17 /* Length of the canary. */ 87#define AT_OSRELDATE 18 /* OSRELDATE. */ 88#define AT_NCPUS 19 /* Number of CPUs. */ 89#define AT_PAGESIZES 20 /* Pagesizes. */ 90#define AT_PAGESIZESLEN 21 /* Number of pagesizes. */ 91#define AT_TIMEKEEP 22 /* Pointer to timehands. */ 92#define AT_STACKPROT 23 /* Initial stack protection. */ 93#define AT_EHDRFLAGS 24 /* e_flags field from elf hdr */ 94#define AT_HWCAP 25 /* CPU feature flags. */ 95#define AT_HWCAP2 26 /* CPU feature flags 2. */ 96 97#define AT_COUNT 27 /* Count of defined aux entry types. */ 98 99/* Define "machine" characteristics */ 100#define ELF_TARG_CLASS ELFCLASS64 101#define ELF_TARG_DATA ELFDATA2LSB 102#define ELF_TARG_MACH EM_RISCV 103#define ELF_TARG_VER 1 104 105/* TODO: set correct value */ 106#define ET_DYN_LOAD_ADDR 0x100000 107 108#endif /* !_MACHINE_ELF_H_ */ 109