2 * Copyright (c) 1996-1997 John D. Polstra.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
29 #ifndef _MACHINE_ELF_H_
30 #define _MACHINE_ELF_H_
33 * ELF definitions for the RISC-V architecture.
36 #include <sys/elf32.h> /* Definitions common to all 32 bit architectures. */
37 #include <sys/elf64.h> /* Definitions common to all 64 bit architectures. */
39 #define __ELF_WORD_SIZE 64 /* Used by <sys/elf_generic.h> */
40 #include <sys/elf_generic.h>
43 * Auxiliary vector entries for passing information to the interpreter.
46 typedef struct { /* Auxiliary vector entry on initial stack */
47 int a_type; /* Entry type. */
49 int a_val; /* Integer value. */
53 typedef struct { /* Auxiliary vector entry on initial stack */
54 long a_type; /* Entry type. */
56 long a_val; /* Integer value. */
57 void *a_ptr; /* Address. */
58 void (*a_fcn)(void); /* Function pointer (not used). */
64 #define ELF_ARCH EM_RISCV
66 #define ELF_MACHINE_OK(x) ((x) == (ELF_ARCH))
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
74 /* TODO: set correct value */
75 #define ET_DYN_LOAD_ADDR 0x100000
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')
86 (HWCAP_ISA_I | HWCAP_ISA_M | HWCAP_ISA_A | HWCAP_ISA_F | HWCAP_ISA_D)
88 #endif /* !_MACHINE_ELF_H_ */