1/*- 2 * Copyright (c) 2001 David E. O'Brien 3 * Copyright (c) 1996-1997 John D. Polstra. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD: stable/11/sys/arm/include/elf.h 340556 2018-11-18 09:58:36Z kib $ 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/* Values for a_type. */ 63#define AT_NULL 0 /* Terminates the vector. */ 64#define AT_IGNORE 1 /* Ignored entry. */ 65#define AT_EXECFD 2 /* File descriptor of program to load. */ 66#define AT_PHDR 3 /* Program header of program already loaded. */ 67#define AT_PHENT 4 /* Size of each program header entry. */ 68#define AT_PHNUM 5 /* Number of program header entries. */ 69#define AT_PAGESZ 6 /* Page size in bytes. */ 70#define AT_BASE 7 /* Interpreter's base address. */ 71#define AT_FLAGS 8 /* Flags (unused). */ 72#define AT_ENTRY 9 /* Where interpreter should transfer control. */ 73#define AT_NOTELF 10 /* Program is not ELF ?? */ 74#define AT_UID 11 /* Real uid. */ 75#define AT_EUID 12 /* Effective uid. */ 76#define AT_GID 13 /* Real gid. */ 77#define AT_EGID 14 /* Effective gid. */ 78#define AT_EXECPATH 15 /* Path to the executable. */ 79#define AT_CANARY 16 /* Canary for SSP */ 80#define AT_CANARYLEN 17 /* Length of the canary. */ 81#define AT_OSRELDATE 18 /* OSRELDATE. */ 82#define AT_NCPUS 19 /* Number of CPUs. */ 83#define AT_PAGESIZES 20 /* Pagesizes. */ 84#define AT_PAGESIZESLEN 21 /* Number of pagesizes. */ 85#define AT_TIMEKEEP 22 /* Pointer to timehands. */ 86#define AT_STACKPROT 23 /* Initial stack protection. */ 87#define AT_EHDRFLAGS 24 /* e_flags field from elf hdr */ 88#define AT_HWCAP 25 /* CPU feature flags. */ 89#define AT_HWCAP2 26 /* CPU feature flags 2. */ 90 91#define AT_COUNT 27 /* Count of defined aux entry types. */ 92 93#define R_ARM_COUNT 33 /* Count of defined relocation types. */ 94 95 96/* Define "machine" characteristics */ 97#define ELF_TARG_CLASS ELFCLASS32 98#ifdef __ARMEB__ 99#define ELF_TARG_DATA ELFDATA2MSB 100#else 101#define ELF_TARG_DATA ELFDATA2LSB 102#endif 103#define ELF_TARG_MACH EM_ARM 104#define ELF_TARG_VER 1 105 106/* Defines specific for arm headers */ 107#define EF_ARM_EABI_VERSION(x) (((x) & EF_ARM_EABIMASK) >> 24) 108#define EF_ARM_EABI_VERSION_UNKNOWN 0 109#define EF_ARM_EABI_FREEBSD_MIN 4 110 111/* 112 * Magic number for the elf trampoline, chosen wisely to be an immediate 113 * value. 114 */ 115#define MAGIC_TRAMP_NUMBER 0x5c000003 116 117#define ET_DYN_LOAD_ADDR 0x500000 118 119/* Flags passed in AT_HWCAP. */ 120#define HWCAP_SWP 0x00000001 /* Unsupported, never set. */ 121#define HWCAP_HALF 0x00000002 /* Always set. */ 122#define HWCAP_THUMB 0x00000004 123#define HWCAP_26BIT 0x00000008 /* Unsupported, never set. */ 124#define HWCAP_FAST_MULT 0x00000010 /* Always set. */ 125#define HWCAP_FPA 0x00000020 /* Unsupported, never set. */ 126#define HWCAP_VFP 0x00000040 127#define HWCAP_EDSP 0x00000080 /* Always set for ARMv6+. */ 128#define HWCAP_JAVA 0x00000100 /* Unsupported, never set. */ 129#define HWCAP_IWMMXT 0x00000200 /* Unsupported, never set. */ 130#define HWCAP_CRUNCH 0x00000400 /* Unsupported, never set. */ 131#define HWCAP_THUMBEE 0x00000800 132#define HWCAP_NEON 0x00001000 133#define HWCAP_VFPv3 0x00002000 134#define HWCAP_VFPv3D16 0x00004000 135#define HWCAP_TLS 0x00008000 /* Always set for ARMv6+. */ 136#define HWCAP_VFPv4 0x00010000 137#define HWCAP_IDIVA 0x00020000 138#define HWCAP_IDIVT 0x00040000 139#define HWCAP_VFPD32 0x00080000 140#define HWCAP_IDIV (HWCAP_IDIVA | HWCAP_IDIVT) 141#define HWCAP_LPAE 0x00100000 142#define HWCAP_EVTSTRM 0x00200000 /* Not implemented yet. */ 143 144 145/* Flags passed in AT_HWCAP2. */ 146#define HWCAP2_AES 0x00000001 147#define HWCAP2_PMULL 0x00000002 148#define HWCAP2_SHA1 0x00000004 149#define HWCAP2_SHA2 0x00000008 150#define HWCAP2_CRC32 0x00000010 151 152#endif /* !_MACHINE_ELF_H_ */ 153