2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2001 David E. O'Brien
5 * Copyright (c) 1996-1997 John D. Polstra.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
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.
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
32 #ifndef _MACHINE_ELF_H_
33 #define _MACHINE_ELF_H_ 1
36 * EABI ELF definitions for the StrongARM architecture.
37 * See "ARM ELF", document no. `SWS ESPC 0003 A-08' for details.
40 #include <sys/elf32.h> /* Definitions common to all 32 bit architectures. */
42 #define __ELF_WORD_SIZE 32 /* Used by <sys/elf_generic.h> */
43 #include <sys/elf_generic.h>
45 typedef struct { /* Auxiliary vector entry on initial stack */
46 int a_type; /* Entry type. */
48 long a_val; /* Integer value. */
49 void *a_ptr; /* Address. */
50 void (*a_fcn)(void); /* Function pointer (not used). */
56 #define ELF_ARCH EM_ARM
58 #define ELF_MACHINE_OK(x) ((x) == EM_ARM)
64 /* Values for a_type. */
65 #define AT_NULL 0 /* Terminates the vector. */
66 #define AT_IGNORE 1 /* Ignored entry. */
67 #define AT_EXECFD 2 /* File descriptor of program to load. */
68 #define AT_PHDR 3 /* Program header of program already loaded. */
69 #define AT_PHENT 4 /* Size of each program header entry. */
70 #define AT_PHNUM 5 /* Number of program header entries. */
71 #define AT_PAGESZ 6 /* Page size in bytes. */
72 #define AT_BASE 7 /* Interpreter's base address. */
73 #define AT_FLAGS 8 /* Flags (unused). */
74 #define AT_ENTRY 9 /* Where interpreter should transfer control. */
75 #define AT_NOTELF 10 /* Program is not ELF ?? */
76 #define AT_UID 11 /* Real uid. */
77 #define AT_EUID 12 /* Effective uid. */
78 #define AT_GID 13 /* Real gid. */
79 #define AT_EGID 14 /* Effective gid. */
80 #define AT_EXECPATH 15 /* Path to the executable. */
81 #define AT_CANARY 16 /* Canary for SSP */
82 #define AT_CANARYLEN 17 /* Length of the canary. */
83 #define AT_OSRELDATE 18 /* OSRELDATE. */
84 #define AT_NCPUS 19 /* Number of CPUs. */
85 #define AT_PAGESIZES 20 /* Pagesizes. */
86 #define AT_PAGESIZESLEN 21 /* Number of pagesizes. */
87 #define AT_TIMEKEEP 22 /* Pointer to timehands. */
88 #define AT_STACKPROT 23 /* Initial stack protection. */
89 #define AT_EHDRFLAGS 24 /* e_flags field from elf hdr */
90 #define AT_HWCAP 25 /* CPU feature flags. */
91 #define AT_HWCAP2 26 /* CPU feature flags 2. */
93 #define AT_COUNT 27 /* Count of defined aux entry types. */
95 #define R_ARM_COUNT 33 /* Count of defined relocation types. */
98 /* Define "machine" characteristics */
99 #define ELF_TARG_CLASS ELFCLASS32
101 #define ELF_TARG_DATA ELFDATA2MSB
103 #define ELF_TARG_DATA ELFDATA2LSB
105 #define ELF_TARG_MACH EM_ARM
106 #define ELF_TARG_VER 1
108 /* Defines specific for arm headers */
109 #define EF_ARM_EABI_VERSION(x) (((x) & EF_ARM_EABIMASK) >> 24)
110 #define EF_ARM_EABI_VERSION_UNKNOWN 0
111 #define EF_ARM_EABI_FREEBSD_MIN 4
114 * Magic number for the elf trampoline, chosen wisely to be an immediate
117 #define MAGIC_TRAMP_NUMBER 0x5c000003
119 #define ET_DYN_LOAD_ADDR 0x12000
121 /* Flags passed in AT_HWCAP. */
122 #define HWCAP_SWP 0x00000001 /* Unsupported, never set. */
123 #define HWCAP_HALF 0x00000002 /* Always set. */
124 #define HWCAP_THUMB 0x00000004
125 #define HWCAP_26BIT 0x00000008 /* Unsupported, never set. */
126 #define HWCAP_FAST_MULT 0x00000010 /* Always set. */
127 #define HWCAP_FPA 0x00000020 /* Unsupported, never set. */
128 #define HWCAP_VFP 0x00000040
129 #define HWCAP_EDSP 0x00000080 /* Always set for ARMv6+. */
130 #define HWCAP_JAVA 0x00000100 /* Unsupported, never set. */
131 #define HWCAP_IWMMXT 0x00000200 /* Unsupported, never set. */
132 #define HWCAP_CRUNCH 0x00000400 /* Unsupported, never set. */
133 #define HWCAP_THUMBEE 0x00000800
134 #define HWCAP_NEON 0x00001000
135 #define HWCAP_VFPv3 0x00002000
136 #define HWCAP_VFPv3D16 0x00004000
137 #define HWCAP_TLS 0x00008000 /* Always set for ARMv6+. */
138 #define HWCAP_VFPv4 0x00010000
139 #define HWCAP_IDIVA 0x00020000
140 #define HWCAP_IDIVT 0x00040000
141 #define HWCAP_VFPD32 0x00080000
142 #define HWCAP_IDIV (HWCAP_IDIVA | HWCAP_IDIVT)
143 #define HWCAP_LPAE 0x00100000
144 #define HWCAP_EVTSTRM 0x00200000 /* Not implemented yet. */
147 /* Flags passed in AT_HWCAP2. */
148 #define HWCAP2_AES 0x00000001
149 #define HWCAP2_PMULL 0x00000002
150 #define HWCAP2_SHA1 0x00000004
151 #define HWCAP2_SHA2 0x00000008
152 #define HWCAP2_CRC32 0x00000010
154 #endif /* !_MACHINE_ELF_H_ */