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 * $FreeBSD$ 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 43 typedef 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 /* Unwind info section type */ 59 #define PT_ARM_EXIDX (PT_LOPROC + 1) 60 61 /* 62 * Relocation types. 63 */ 64 65 /* Values for a_type. */ 66 #define AT_NULL 0 /* Terminates the vector. */ 67 #define AT_IGNORE 1 /* Ignored entry. */ 68 #define AT_EXECFD 2 /* File descriptor of program to load. */ 69 #define AT_PHDR 3 /* Program header of program already loaded. */ 70 #define AT_PHENT 4 /* Size of each program header entry. */ 71 #define AT_PHNUM 5 /* Number of program header entries. */ 72 #define AT_PAGESZ 6 /* Page size in bytes. */ 73 #define AT_BASE 7 /* Interpreter's base address. */ 74 #define AT_FLAGS 8 /* Flags (unused). */ 75 #define AT_ENTRY 9 /* Where interpreter should transfer control. */ 76 #define AT_NOTELF 10 /* Program is not ELF ?? */ 77 #define AT_UID 11 /* Real uid. */ 78 #define AT_EUID 12 /* Effective uid. */ 79 #define AT_GID 13 /* Real gid. */ 80 #define AT_EGID 14 /* Effective gid. */ 81 #define AT_EXECPATH 15 /* Path to the executable. */ 82 #define AT_CANARY 16 /* Canary for SSP */ 83 #define AT_CANARYLEN 17 /* Length of the canary. */ 84 #define AT_OSRELDATE 18 /* OSRELDATE. */ 85 #define AT_NCPUS 19 /* Number of CPUs. */ 86 #define AT_PAGESIZES 20 /* Pagesizes. */ 87 #define AT_PAGESIZESLEN 21 /* Number of pagesizes. */ 88 #define AT_TIMEKEEP 22 /* Pointer to timehands. */ 89 #define AT_STACKPROT 23 /* Initial stack protection. */ 90 #define AT_EHDRFLAGS 24 /* e_flags field from elf hdr */ 91 92 #define AT_COUNT 25 /* Count of defined aux entry types. */ 93 94 #define R_ARM_COUNT 33 /* Count of defined relocation types. */ 95 96 97 /* Define "machine" characteristics */ 98 #define ELF_TARG_CLASS ELFCLASS32 99 #ifdef __ARMEB__ 100 #define ELF_TARG_DATA ELFDATA2MSB 101 #else 102 #define ELF_TARG_DATA ELFDATA2LSB 103 #endif 104 #define ELF_TARG_MACH EM_ARM 105 #define ELF_TARG_VER 1 106 107 /* Defines specific for arm headers */ 108 #define EF_ARM_EABI_VERSION(x) (((x) & EF_ARM_EABIMASK) >> 24) 109 #define EF_ARM_EABI_VERSION_UNKNOWN 0 110 #define EF_ARM_EABI_FREEBSD_MIN 4 111 112 /* 113 * Magic number for the elf trampoline, chosen wisely to be an immediate 114 * value. 115 */ 116 #define MAGIC_TRAMP_NUMBER 0x5c000003 117 118 #define ET_DYN_LOAD_ADDR 0x12000 119 120 #endif /* !_MACHINE_ELF_H_ */ 121