147 lines
5.0 KiB
C
147 lines
5.0 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2001 David E. O'Brien
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* Copyright (c) 1996-1997 John D. Polstra.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _MACHINE_ELF_H_
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#define _MACHINE_ELF_H_ 1
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/*
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* EABI ELF definitions for the PowerPC architecture.
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* See "PowerPC Embedded Application Binary Interface, 32-Bit Impliementation"
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* [ppc-eabi-1995-01.pdf] for details.
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*/
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#ifndef __ELF_WORD_SIZE
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#ifdef __powerpc64__
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#define __ELF_WORD_SIZE 64 /* Used by <sys/elf_generic.h> */
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#else
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#define __ELF_WORD_SIZE 32 /* Used by <sys/elf_generic.h> */
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#endif
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#endif
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#include <sys/elf32.h> /* Definitions common to all 32 bit architectures. */
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#include <sys/elf64.h> /* Definitions common to all 64 bit architectures. */
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#include <sys/elf_generic.h>
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#if __ELF_WORD_SIZE == 64
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#define ELF_ARCH EM_PPC64
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#define ELF_MACHINE_OK(x) ((x) == EM_PPC64)
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#else
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#define ELF_ARCH EM_PPC
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#define ELF_ARCH32 EM_PPC
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#define ELF_MACHINE_OK(x) ((x) == EM_PPC)
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#endif
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/*
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* Auxiliary vector entries for passing information to the interpreter.
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*
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* The PowerPC supplement to the SVR4 ABI specification names this "auxv_t",
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* but POSIX lays claim to all symbols ending with "_t".
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*/
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typedef struct { /* Auxiliary vector entry on initial stack */
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int a_type; /* Entry type. */
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union {
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#ifdef __powerpc64__
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int a_val; /* Integer value */
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#else
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long a_val; /* Integer value. */
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void *a_ptr; /* Address. */
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void (*a_fcn)(void); /* Function pointer (not used). */
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#endif
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} a_un;
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} Elf32_Auxinfo;
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typedef struct { /* Auxiliary vector entry on initial stack */
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long a_type; /* Entry type. */
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union {
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long a_val; /* Integer value. */
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void *a_ptr; /* Address. */
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void (*a_fcn)(void); /* Function pointer (not used). */
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} a_un;
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} Elf64_Auxinfo;
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__ElfType(Auxinfo);
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/* Values for a_type. */
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#define AT_NULL 0 /* Terminates the vector. */
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#define AT_IGNORE 1 /* Ignored entry. */
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#define AT_EXECFD 2 /* File descriptor of program to load. */
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#define AT_PHDR 3 /* Program header of program already loaded. */
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#define AT_PHENT 4 /* Size of each program header entry. */
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#define AT_PHNUM 5 /* Number of program header entries. */
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#define AT_PAGESZ 6 /* Page size in bytes. */
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#define AT_BASE 7 /* Interpreter's base address. */
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#define AT_FLAGS 8 /* Flags (unused for PowerPC). */
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#define AT_ENTRY 9 /* Where interpreter should transfer control. */
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#define AT_DCACHEBSIZE 10 /* Data cache block size for the processor. */
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#define AT_ICACHEBSIZE 11 /* Instruction cache block size for the uP. */
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#define AT_UCACHEBSIZE 12 /* Cache block size, or `0' if cache not unified. */
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#define AT_EXECPATH 13 /* Path to the executable. */
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#define AT_CANARY 14 /* Canary for SSP */
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#define AT_CANARYLEN 15 /* Length of the canary. */
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#define AT_OSRELDATE 16 /* OSRELDATE. */
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#define AT_NCPUS 17 /* Number of CPUs. */
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#define AT_PAGESIZES 18 /* Pagesizes. */
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#define AT_PAGESIZESLEN 19 /* Number of pagesizes. */
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#define AT_STACKPROT 21 /* Initial stack protection. */
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#define AT_TIMEKEEP 22 /* Pointer to timehands. */
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#define AT_EHDRFLAGS 24 /* e_flags field from elf hdr */
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#define AT_HWCAP 25 /* CPU feature flags. */
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#define AT_HWCAP2 26 /* CPU feature flags 2. */
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#define AT_COUNT 27 /* Count of defined aux entry types. */
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/*
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* Relocation types.
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*/
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#define R_PPC_COUNT 37 /* Count of defined relocation types. */
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/* Count of defined relocation types. */
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#define R_PPC_EMB_COUNT (R_PPC_EMB_RELSDA - R_PPC_EMB_NADDR32 + 1)
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/* Define "machine" characteristics */
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#if __ELF_WORD_SIZE == 64
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#define ELF_TARG_CLASS ELFCLASS64
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#define ELF_TARG_DATA ELFDATA2MSB
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#define ELF_TARG_MACH EM_PPC64
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#define ELF_TARG_VER 1
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#else
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#define ELF_TARG_CLASS ELFCLASS32
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#define ELF_TARG_DATA ELFDATA2MSB
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#define ELF_TARG_MACH EM_PPC
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#define ELF_TARG_VER 1
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#endif
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#define ET_DYN_LOAD_ADDR 0x01010000
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#endif /* !_MACHINE_ELF_H_ */
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