FreeBSD/Linux Kernel Cross Reference
sys/arm/include/elf.h
1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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 * $FreeBSD$
30 */
31
32 #ifndef _MACHINE_ELF_H_
33 #define _MACHINE_ELF_H_ 1
34
35 /*
36 * EABI ELF definitions for the StrongARM architecture.
37 * See "ARM ELF", document no. `SWS ESPC 0003 A-08' for details.
38 */
39
40 #include <sys/elf32.h> /* Definitions common to all 32 bit architectures. */
41
42 #define __ELF_WORD_SIZE 32 /* Used by <sys/elf_generic.h> */
43 #include <sys/elf_generic.h>
44
45 typedef struct { /* Auxiliary vector entry on initial stack */
46 int a_type; /* Entry type. */
47 union {
48 long a_val; /* Integer value. */
49 void *a_ptr; /* Address. */
50 void (*a_fcn)(void); /* Function pointer (not used). */
51 } a_un;
52 } Elf32_Auxinfo;
53
54 __ElfType(Auxinfo);
55
56 #define ELF_ARCH EM_ARM
57
58 #define ELF_MACHINE_OK(x) ((x) == EM_ARM)
59
60 /*
61 * Relocation types.
62 */
63
64 #define R_ARM_COUNT 33 /* Count of defined relocation types. */
65
66 /* Define "machine" characteristics */
67 #define ELF_TARG_CLASS ELFCLASS32
68 #ifdef __ARMEB__
69 #define ELF_TARG_DATA ELFDATA2MSB
70 #else
71 #define ELF_TARG_DATA ELFDATA2LSB
72 #endif
73 #define ELF_TARG_MACH EM_ARM
74 #define ELF_TARG_VER 1
75
76 /* Defines specific for arm headers */
77 #define EF_ARM_EABI_VERSION(x) (((x) & EF_ARM_EABIMASK) >> 24)
78 #define EF_ARM_EABI_VERSION_UNKNOWN 0
79 #define EF_ARM_EABI_FREEBSD_MIN 4
80
81 #define ET_DYN_LOAD_ADDR 0x500000
82
83 /* Flags passed in AT_HWCAP. */
84 #define HWCAP_SWP 0x00000001 /* Unsupported, never set. */
85 #define HWCAP_HALF 0x00000002 /* Always set. */
86 #define HWCAP_THUMB 0x00000004
87 #define HWCAP_26BIT 0x00000008 /* Unsupported, never set. */
88 #define HWCAP_FAST_MULT 0x00000010 /* Always set. */
89 #define HWCAP_FPA 0x00000020 /* Unsupported, never set. */
90 #define HWCAP_VFP 0x00000040
91 #define HWCAP_EDSP 0x00000080 /* Always set for ARMv6+. */
92 #define HWCAP_JAVA 0x00000100 /* Unsupported, never set. */
93 #define HWCAP_IWMMXT 0x00000200 /* Unsupported, never set. */
94 #define HWCAP_CRUNCH 0x00000400 /* Unsupported, never set. */
95 #define HWCAP_THUMBEE 0x00000800
96 #define HWCAP_NEON 0x00001000
97 #define HWCAP_VFPv3 0x00002000
98 #define HWCAP_VFPv3D16 0x00004000
99 #define HWCAP_TLS 0x00008000 /* Always set for ARMv6+. */
100 #define HWCAP_VFPv4 0x00010000
101 #define HWCAP_IDIVA 0x00020000
102 #define HWCAP_IDIVT 0x00040000
103 #define HWCAP_VFPD32 0x00080000
104 #define HWCAP_IDIV (HWCAP_IDIVA | HWCAP_IDIVT)
105 #define HWCAP_LPAE 0x00100000
106 #define HWCAP_EVTSTRM 0x00200000 /* Not implemented yet. */
107
108 /* Flags passed in AT_HWCAP2. */
109 #define HWCAP2_AES 0x00000001
110 #define HWCAP2_PMULL 0x00000002
111 #define HWCAP2_SHA1 0x00000004
112 #define HWCAP2_SHA2 0x00000008
113 #define HWCAP2_CRC32 0x00000010
114
115 #endif /* !_MACHINE_ELF_H_ */
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