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 * $FreeBSD$ 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 46 typedef 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 53 typedef 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 /* Define "machine" characteristics */ 69 #define ELF_TARG_CLASS ELFCLASS64 70 #define ELF_TARG_DATA ELFDATA2LSB 71 #define ELF_TARG_MACH EM_RISCV 72 #define ELF_TARG_VER 1 73 74 /* TODO: set correct value */ 75 #define ET_DYN_LOAD_ADDR 0x100000 76 77 /* Flags passed in AT_HWCAP */ 78 #define HWCAP_ISA_BIT(c) (1 << ((c) - 'a')) 79 #define HWCAP_ISA_I HWCAP_ISA_BIT('i') 80 #define HWCAP_ISA_M HWCAP_ISA_BIT('m') 81 #define HWCAP_ISA_A HWCAP_ISA_BIT('a') 82 #define HWCAP_ISA_F HWCAP_ISA_BIT('f') 83 #define HWCAP_ISA_D HWCAP_ISA_BIT('d') 84 #define HWCAP_ISA_C HWCAP_ISA_BIT('c') 85 #define HWCAP_ISA_G \ 86 (HWCAP_ISA_I | HWCAP_ISA_M | HWCAP_ISA_A | HWCAP_ISA_F | HWCAP_ISA_D) 87 88 #endif /* !_MACHINE_ELF_H_ */ 89