2 * Copyright (c) 2001 David E. O'Brien
3 * Copyright (c) 1996-1997 John D. Polstra.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
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.
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
30 #ifndef _MACHINE_ELF_H_
31 #define _MACHINE_ELF_H_ 1
34 * EABI ELF definitions for the PowerPC architecture.
35 * See "PowerPC Embedded Application Binary Interface, 32-Bit Impliementation"
36 * [ppc-eabi-1995-01.pdf] for details.
39 #include <sys/elf32.h> /* Definitions common to all 32 bit architectures. */
41 #define __ELF_WORD_SIZE 32 /* Used by <sys/elf_generic.h> */
42 #include <sys/elf_generic.h>
44 #define ELF_ARCH EM_PPC
46 #define ELF_MACHINE_OK(x) ((x) == EM_PPC)
49 * Auxiliary vector entries for passing information to the interpreter.
51 * The PowerPC supplement to the SVR4 ABI specification names this "auxv_t",
52 * but POSIX lays claim to all symbols ending with "_t".
55 typedef struct { /* Auxiliary vector entry on initial stack */
56 int a_type; /* Entry type. */
58 long a_val; /* Integer value. */
59 void *a_ptr; /* Address. */
60 void (*a_fcn)(void); /* Function pointer (not used). */
66 /* Values for a_type. */
67 #define AT_NULL 0 /* Terminates the vector. */
68 #define AT_IGNORE 1 /* Ignored entry. */
69 #define AT_EXECFD 2 /* File descriptor of program to load. */
70 #define AT_PHDR 3 /* Program header of program already loaded. */
71 #define AT_PHENT 4 /* Size of each program header entry. */
72 #define AT_PHNUM 5 /* Number of program header entries. */
73 #define AT_PAGESZ 6 /* Page size in bytes. */
74 #define AT_BASE 7 /* Interpreter's base address. */
75 #define AT_FLAGS 8 /* Flags (unused for PowerPC). */
76 #define AT_ENTRY 9 /* Where interpreter should transfer control. */
77 #define AT_DCACHEBSIZE 10 /* Data cache block size for the processor. */
78 #define AT_ICACHEBSIZE 11 /* Instruction cache block size for the uP. */
79 #define AT_UCACHEBSIZE 12 /* Cache block size, or `0' if cache not unified. */
80 #define AT_EXECPATH 13 /* Path to the executable. */
82 #define AT_COUNT 14 /* Count of defined aux entry types. */
88 #define R_PPC_COUNT 37 /* Count of defined relocation types. */
90 /* Count of defined relocation types. */
91 #define R_PPC_EMB_COUNT (R_PPC_EMB_RELSDA - R_PPC_EMB_NADDR32 + 1)
93 /* Define "machine" characteristics */
94 #define ELF_TARG_CLASS ELFCLASS32
95 #define ELF_TARG_DATA ELFDATA2MSB
96 #define ELF_TARG_MACH EM_PPC
97 #define ELF_TARG_VER 1
99 #define ET_DYN_LOAD_ADDR 0x01010000
101 #endif /* !_MACHINE_ELF_H_ */