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 PowerPC architecture.
37 * See "PowerPC Embedded Application Binary Interface, 32-Bit Impliementation"
38 * [ppc-eabi-1995-01.pdf] for details.
41 #ifndef __ELF_WORD_SIZE
43 #define __ELF_WORD_SIZE 64 /* Used by <sys/elf_generic.h> */
45 #define __ELF_WORD_SIZE 32 /* Used by <sys/elf_generic.h> */
49 #include <sys/elf32.h> /* Definitions common to all 32 bit architectures. */
50 #include <sys/elf64.h> /* Definitions common to all 64 bit architectures. */
51 #include <sys/elf_generic.h>
53 #if __ELF_WORD_SIZE == 64
54 #define ELF_ARCH EM_PPC64
55 #define ELF_MACHINE_OK(x) ((x) == EM_PPC64)
57 #define ELF_ARCH EM_PPC
58 #define ELF_ARCH32 EM_PPC
59 #define ELF_MACHINE_OK(x) ((x) == EM_PPC)
63 * Auxiliary vector entries for passing information to the interpreter.
65 * The PowerPC supplement to the SVR4 ABI specification names this "auxv_t",
66 * but POSIX lays claim to all symbols ending with "_t".
69 typedef struct { /* Auxiliary vector entry on initial stack */
70 int a_type; /* Entry type. */
73 int a_val; /* Integer value */
75 long a_val; /* Integer value. */
76 void *a_ptr; /* Address. */
77 void (*a_fcn)(void); /* Function pointer (not used). */
82 typedef struct { /* Auxiliary vector entry on initial stack */
83 long a_type; /* Entry type. */
85 long a_val; /* Integer value. */
86 void *a_ptr; /* Address. */
87 void (*a_fcn)(void); /* Function pointer (not used). */
93 /* Values for a_type. */
94 #define AT_NULL 0 /* Terminates the vector. */
95 #define AT_IGNORE 1 /* Ignored entry. */
96 #define AT_EXECFD 2 /* File descriptor of program to load. */
97 #define AT_PHDR 3 /* Program header of program already loaded. */
98 #define AT_PHENT 4 /* Size of each program header entry. */
99 #define AT_PHNUM 5 /* Number of program header entries. */
100 #define AT_PAGESZ 6 /* Page size in bytes. */
101 #define AT_BASE 7 /* Interpreter's base address. */
102 #define AT_FLAGS 8 /* Flags (unused for PowerPC). */
103 #define AT_ENTRY 9 /* Where interpreter should transfer control. */
104 #define AT_DCACHEBSIZE 10 /* Data cache block size for the processor. */
105 #define AT_ICACHEBSIZE 11 /* Instruction cache block size for the uP. */
106 #define AT_UCACHEBSIZE 12 /* Cache block size, or `0' if cache not unified. */
107 #define AT_EXECPATH 13 /* Path to the executable. */
108 #define AT_CANARY 14 /* Canary for SSP */
109 #define AT_CANARYLEN 15 /* Length of the canary. */
110 #define AT_OSRELDATE 16 /* OSRELDATE. */
111 #define AT_NCPUS 17 /* Number of CPUs. */
112 #define AT_PAGESIZES 18 /* Pagesizes. */
113 #define AT_PAGESIZESLEN 19 /* Number of pagesizes. */
114 #define AT_STACKPROT 21 /* Initial stack protection. */
115 #define AT_TIMEKEEP 22 /* Pointer to timehands. */
116 #define AT_EHDRFLAGS 24 /* e_flags field from elf hdr */
117 #define AT_HWCAP 25 /* CPU feature flags. */
118 #define AT_HWCAP2 26 /* CPU feature flags 2. */
120 #define AT_COUNT 27 /* Count of defined aux entry types. */
126 #define R_PPC_COUNT 37 /* Count of defined relocation types. */
128 /* Count of defined relocation types. */
129 #define R_PPC_EMB_COUNT (R_PPC_EMB_RELSDA - R_PPC_EMB_NADDR32 + 1)
131 /* Define "machine" characteristics */
132 #if __ELF_WORD_SIZE == 64
133 #define ELF_TARG_CLASS ELFCLASS64
134 #define ELF_TARG_DATA ELFDATA2MSB
135 #define ELF_TARG_MACH EM_PPC64
136 #define ELF_TARG_VER 1
138 #define ELF_TARG_CLASS ELFCLASS32
139 #define ELF_TARG_DATA ELFDATA2MSB
140 #define ELF_TARG_MACH EM_PPC
141 #define ELF_TARG_VER 1
144 #define ET_DYN_LOAD_ADDR 0x01010000
146 #endif /* !_MACHINE_ELF_H_ */