freebsd-dev/sys/powerpc/include/elf.h
Brandon Bergren 81472778e8 [PowerPC64LE] Adjust ELF definitions for LE.
Set ELF_TARG_DATA correctly on PowerPC64LE.

Sponsored by:	Tag1 Consulting, Inc.
2020-09-13 17:36:43 +00:00

149 lines
4.5 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2001 David E. O'Brien
* Copyright (c) 1996-1997 John D. Polstra.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _MACHINE_ELF_H_
#define _MACHINE_ELF_H_ 1
/*
* EABI ELF definitions for the PowerPC architecture.
* See "PowerPC Embedded Application Binary Interface, 32-Bit Impliementation"
* [ppc-eabi-1995-01.pdf] for details.
*/
#ifndef __ELF_WORD_SIZE
#ifdef __powerpc64__
#define __ELF_WORD_SIZE 64 /* Used by <sys/elf_generic.h> */
#else
#define __ELF_WORD_SIZE 32 /* Used by <sys/elf_generic.h> */
#endif
#endif
#include <sys/elf32.h> /* Definitions common to all 32 bit architectures. */
#include <sys/elf64.h> /* Definitions common to all 64 bit architectures. */
#include <sys/elf_generic.h>
#if __ELF_WORD_SIZE == 64
#define ELF_ARCH EM_PPC64
#define ELF_MACHINE_OK(x) ((x) == EM_PPC64)
#else
#define ELF_ARCH EM_PPC
#define ELF_ARCH32 EM_PPC
#define ELF_MACHINE_OK(x) ((x) == EM_PPC)
#endif
/*
* Auxiliary vector entries for passing information to the interpreter.
*
* The PowerPC supplement to the SVR4 ABI specification names this "auxv_t",
* but POSIX lays claim to all symbols ending with "_t".
*/
typedef struct { /* Auxiliary vector entry on initial stack */
int a_type; /* Entry type. */
union {
#ifdef __powerpc64__
int a_val; /* Integer value */
#else
long a_val; /* Integer value. */
void *a_ptr; /* Address. */
void (*a_fcn)(void); /* Function pointer (not used). */
#endif
} a_un;
} Elf32_Auxinfo;
typedef struct { /* Auxiliary vector entry on initial stack */
long a_type; /* Entry type. */
union {
long a_val; /* Integer value. */
void *a_ptr; /* Address. */
void (*a_fcn)(void); /* Function pointer (not used). */
} a_un;
} Elf64_Auxinfo;
__ElfType(Auxinfo);
/*
* Relocation types.
*/
#define R_PPC_COUNT 37 /* Count of defined relocation types. */
/* Count of defined relocation types. */
#define R_PPC_EMB_COUNT (R_PPC_EMB_RELSDA - R_PPC_EMB_NADDR32 + 1)
/* Define "machine" characteristics */
#if BYTE_ORDER == LITTLE_ENDIAN
#define ELF_TARG_DATA ELFDATA2LSB
#else
#define ELF_TARG_DATA ELFDATA2MSB
#endif
#if __ELF_WORD_SIZE == 64
#define ELF_TARG_CLASS ELFCLASS64
#define ELF_TARG_MACH EM_PPC64
#define ELF_TARG_VER 1
#else
#define ELF_TARG_CLASS ELFCLASS32
#define ELF_TARG_MACH EM_PPC
#define ELF_TARG_VER 1
#endif
#define ET_DYN_LOAD_ADDR 0x01010000
#define AT_OLD_NULL AT_NULL
#define AT_OLD_IGNORE AT_IGNORE
#define AT_OLD_EXECFD AT_EXECFD
#define AT_OLD_PHDR AT_PHDR
#define AT_OLD_PHENT AT_PHENT
#define AT_OLD_PHNUM AT_PHNUM
#define AT_OLD_PAGESZ AT_PAGESZ
#define AT_OLD_BASE AT_BASE
#define AT_OLD_FLAGS AT_FLAGS
#define AT_OLD_ENTRY AT_ENTRY
#define AT_OLD_NOTELF AT_NOTELF
#define AT_OLD_UID AT_UID
#define AT_OLD_EUID AT_EUID
#define AT_OLD_EXECPATH 13
#define AT_OLD_CANARY 14
#define AT_OLD_CANARYLEN 15
#define AT_OLD_OSRELDATE 16
#define AT_OLD_NCPUS 17
#define AT_OLD_PAGESIZES 18
#define AT_OLD_PAGESIZESLEN 19
#define AT_OLD_STACKPROT 21
#define AT_OLD_TIMEKEEP AT_TIMEKEEP
#define AT_OLD_EHDRFLAGS AT_EHDRFLAGS
#define AT_OLD_HWCAP AT_HWCAP
#define AT_OLD_HWCAP2 AT_HWCAP2
#define AT_OLD_COUNT 27 /* Count of defined aux entry types. */
#endif /* !_MACHINE_ELF_H_ */