1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2001 David E. O'Brien
5 * Copyright (c) 1996-1997 John D. Polstra.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#ifndef _MACHINE_ELF_H_
31#define	_MACHINE_ELF_H_ 1
32
33/*
34 * EABI ELF definitions for the StrongARM architecture.
35 * See "ARM ELF", document no. `SWS ESPC 0003 A-08' for details.
36 */
37
38#include <sys/elf32.h>	/* Definitions common to all 32 bit architectures. */
39
40#define	__ELF_WORD_SIZE	32	/* Used by <sys/elf_generic.h> */
41#include <sys/elf_generic.h>
42
43typedef struct {        /* Auxiliary vector entry on initial stack */
44	int     a_type;                 /* Entry type. */
45	union {
46		long    a_val;          /* Integer value. */
47		void    *a_ptr;         /* Address. */
48		void    (*a_fcn)(void); /* Function pointer (not used). */
49	} a_un;
50} Elf32_Auxinfo;
51
52__ElfType(Auxinfo);
53
54#define	ELF_ARCH	EM_ARM
55
56#define	ELF_MACHINE_OK(x) ((x) == EM_ARM)
57
58/*
59 * Relocation types.
60 */
61
62#define	R_ARM_COUNT	33	/* Count of defined relocation types. */
63
64/* Define "machine" characteristics */
65#define	ELF_TARG_CLASS	ELFCLASS32
66#ifdef __ARMEB__
67#define	ELF_TARG_DATA	ELFDATA2MSB
68#else
69#define	ELF_TARG_DATA	ELFDATA2LSB
70#endif
71#define	ELF_TARG_MACH	EM_ARM
72#define	ELF_TARG_VER	1
73
74/* Defines specific for arm headers */
75#define	EF_ARM_EABI_FREEBSD_MIN EF_ARM_EABI_VER4
76
77#define	ET_DYN_LOAD_ADDR 0x01001000
78
79/* Flags passed in AT_HWCAP. */
80#define	HWCAP_SWP		0x00000001	/* Unsupported, never set.    */
81#define	HWCAP_HALF		0x00000002	/* Always set.                */
82#define	HWCAP_THUMB		0x00000004
83#define	HWCAP_26BIT		0x00000008	/* Unsupported, never set.    */
84#define	HWCAP_FAST_MULT		0x00000010	/* Always set.                */
85#define	HWCAP_FPA		0x00000020	/* Unsupported, never set.    */
86#define	HWCAP_VFP		0x00000040
87#define	HWCAP_EDSP		0x00000080	/* Always set for ARMv6+.     */
88#define	HWCAP_JAVA		0x00000100	/* Unsupported, never set.    */
89#define	HWCAP_IWMMXT		0x00000200	/* Unsupported, never set.    */
90#define	HWCAP_CRUNCH		0x00000400	/* Unsupported, never set.    */
91#define	HWCAP_THUMBEE		0x00000800
92#define	HWCAP_NEON		0x00001000
93#define	HWCAP_VFPv3		0x00002000
94#define	HWCAP_VFPv3D16		0x00004000
95#define	HWCAP_TLS		0x00008000	/* Always set for ARMv6+.     */
96#define	HWCAP_VFPv4		0x00010000
97#define	HWCAP_IDIVA		0x00020000
98#define	HWCAP_IDIVT		0x00040000
99#define	HWCAP_VFPD32		0x00080000
100#define	HWCAP_IDIV		(HWCAP_IDIVA | HWCAP_IDIVT)
101#define	HWCAP_LPAE		0x00100000
102#define	HWCAP_EVTSTRM		0x00200000	/* Not implemented yet.       */
103
104/* Flags passed in AT_HWCAP2. */
105#define	HWCAP2_AES		0x00000001
106#define	HWCAP2_PMULL		0x00000002
107#define	HWCAP2_SHA1		0x00000004
108#define	HWCAP2_SHA2		0x00000008
109#define	HWCAP2_CRC32		0x00000010
110
111#endif /* !_MACHINE_ELF_H_ */
112