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 27 #ifndef _MACHINE_ELF_H_ 28 #define _MACHINE_ELF_H_ 29 30 /* 31 * ELF definitions for the RISC-V architecture. 32 */ 33 34 #include <sys/elf32.h> /* Definitions common to all 32 bit architectures. */ 35 #include <sys/elf64.h> /* Definitions common to all 64 bit architectures. */ 36 37 #define __ELF_WORD_SIZE 64 /* Used by <sys/elf_generic.h> */ 38 #include <sys/elf_generic.h> 39 40 /* 41 * Auxiliary vector entries for passing information to the interpreter. 42 */ 43 44 typedef struct { /* Auxiliary vector entry on initial stack */ 45 int a_type; /* Entry type. */ 46 union { 47 int a_val; /* Integer value. */ 48 } a_un; 49 } Elf32_Auxinfo; 50 51 typedef struct { /* Auxiliary vector entry on initial stack */ 52 long a_type; /* Entry type. */ 53 union { 54 long a_val; /* Integer value. */ 55 void *a_ptr; /* Address. */ 56 void (*a_fcn)(void); /* Function pointer (not used). */ 57 } a_un; 58 } Elf64_Auxinfo; 59 60 __ElfType(Auxinfo); 61 62 #define ELF_ARCH EM_RISCV 63 64 #define ELF_MACHINE_OK(x) ((x) == (ELF_ARCH)) 65 66 /* Define "machine" characteristics */ 67 #define ELF_TARG_CLASS ELFCLASS64 68 #define ELF_TARG_DATA ELFDATA2LSB 69 #define ELF_TARG_MACH EM_RISCV 70 #define ELF_TARG_VER 1 71 72 /* TODO: set correct value */ 73 #define ET_DYN_LOAD_ADDR 0x100000 74 75 /* Flags passed in AT_HWCAP */ 76 #define HWCAP_ISA_BIT(c) (1 << ((c) - 'a')) 77 #define HWCAP_ISA_I HWCAP_ISA_BIT('i') 78 #define HWCAP_ISA_M HWCAP_ISA_BIT('m') 79 #define HWCAP_ISA_A HWCAP_ISA_BIT('a') 80 #define HWCAP_ISA_F HWCAP_ISA_BIT('f') 81 #define HWCAP_ISA_D HWCAP_ISA_BIT('d') 82 #define HWCAP_ISA_C HWCAP_ISA_BIT('c') 83 #define HWCAP_ISA_G \ 84 (HWCAP_ISA_I | HWCAP_ISA_M | HWCAP_ISA_A | HWCAP_ISA_F | HWCAP_ISA_D) 85 86 #endif /* !_MACHINE_ELF_H_ */ 87