/*-
 * 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 StrongARM architecture.
 * See "ARM ELF", document no. `SWS ESPC 0003 A-08' for details.
 */

#include <sys/elf32.h>	/* Definitions common to all 32 bit architectures. */

#define	__ELF_WORD_SIZE	32	/* Used by <sys/elf_generic.h> */
#include <sys/elf_generic.h>

#define	ELF_ARCH	EM_ARM

#define	ELF_MACHINE_OK(x) ((x) == EM_ARM)

/*
 * Relocation types.
 */

#define	R_ARM_NONE		0	/* No relocation. */
#define	R_ARM_PC24		1
#define	R_ARM_ABS32		2
#define	R_ARM_REL32		3
#define	R_ARM_PC13		4
#define	R_ARM_ABS16		5
#define	R_ARM_ABS12		6
#define	R_ARM_THM_ABS5		7
#define	R_ARM_ABS8		8
#define	R_ARM_SBREL32		9
#define	R_ARM_THM_PC22		10
#define	R_ARM_THM_PC8		11
#define	R_ARM_AMP_VCALL9	12
#define	R_ARM_SWI24		13
#define	R_ARM_THM_SWI8		14
#define	R_ARM_XPC25		15
#define	R_ARM_THM_XPC22		16
#define	R_ARM_COPY		20	/* Copy data from shared object. */
#define	R_ARM_GLOB_DAT		21	/* Set GOT entry to data address. */
#define	R_ARM_JUMP_SLOT		22	/* Set GOT entry to code address. */
#define	R_ARM_RELATIVE		23	/* Add load address of shared object. */
#define	R_ARM_GOTOFF		24	/* Add GOT-relative symbol address. *
#define	R_ARM_GOTPC		25	/* Add PC-relative GOT table address. */
#define	R_ARM_GOT32		26	/* Add PC-relative GOT offset. */
#define	R_ARM_PLT32		27	/* Add PC-relative PLT offset. */
#define	R_ARM_GNU_VTENTRY	100
#define	R_ARM_GNU_VTINHERIT	101
#define	R_ARM_RSBREL32		250
#define	R_ARM_THM_RPC22		251
#define	R_ARM_RREL32		252
#define	R_ARM_RABS32		253
#define	R_ARM_RPC24		254
#define	R_ARM_RBASE		255

#define	R_ARM_COUNT		33	/* Count of defined relocation types. */


/* Define "machine" characteristics */
#define	ELF_TARG_CLASS	ELFCLASS32
#define	ELF_TARG_DATA	ELFDATA2LSB
#define	ELF_TARG_MACH	EM_ARM
#define	ELF_TARG_VER	1

#ifdef _KERNEL

/*
 * On the StrongARM we load the dynamic linker where a userland call
 * to mmap(0, ...) would put it.  The rationale behind this
 * calculation is that it leaves room for the heap to grow to
 * its maximum allowed size.
 */
#define	ELF_RTLD_ADDR(vmspace) \
    (round_page((vm_offset_t)(vmspace)->vm_daddr + maxdsiz))

#endif /* _KERNEL */
#endif /* !_MACHINE_ELF_H_ */