sys/arm/include/elf.h

root/sys/arm/include/elf.h
/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * 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.
 */

#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>

typedef struct {        /* Auxiliary vector entry on initial stack */
        int     a_type;                 /* Entry type. */
        union {
                long    a_val;          /* Integer value. */
                void    *a_ptr;         /* Address. */
                void    (*a_fcn)(void); /* Function pointer (not used). */
        } a_un;
} Elf32_Auxinfo;

__ElfType(Auxinfo);

#define ELF_ARCH        EM_ARM

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

/*
 * Relocation types.
 */

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

/* Define "machine" characteristics */
#define ELF_TARG_CLASS  ELFCLASS32
#ifdef __ARMEB__
#define ELF_TARG_DATA   ELFDATA2MSB
#else
#define ELF_TARG_DATA   ELFDATA2LSB
#endif
#define ELF_TARG_MACH   EM_ARM
#define ELF_TARG_VER    1

/* Defines specific for arm headers */
#define EF_ARM_EABI_FREEBSD_MIN EF_ARM_EABI_VER4

#define ET_DYN_LOAD_ADDR 0x01001000

/* Flags passed in AT_HWCAP. */
#define HWCAP_SWP               0x00000001      /* Unsupported, never set.    */
#define HWCAP_HALF              0x00000002      /* Always set.                */
#define HWCAP_THUMB             0x00000004
#define HWCAP_26BIT             0x00000008      /* Unsupported, never set.    */
#define HWCAP_FAST_MULT         0x00000010      /* Always set.                */
#define HWCAP_FPA               0x00000020      /* Unsupported, never set.    */
#define HWCAP_VFP               0x00000040
#define HWCAP_EDSP              0x00000080      /* Always set for ARMv6+.     */
#define HWCAP_JAVA              0x00000100      /* Unsupported, never set.    */
#define HWCAP_IWMMXT            0x00000200      /* Unsupported, never set.    */
#define HWCAP_CRUNCH            0x00000400      /* Unsupported, never set.    */
#define HWCAP_THUMBEE           0x00000800
#define HWCAP_NEON              0x00001000
#define HWCAP_VFPv3             0x00002000
#define HWCAP_VFPv3D16          0x00004000
#define HWCAP_TLS               0x00008000      /* Always set for ARMv6+.     */
#define HWCAP_VFPv4             0x00010000
#define HWCAP_IDIVA             0x00020000
#define HWCAP_IDIVT             0x00040000
#define HWCAP_VFPD32            0x00080000
#define HWCAP_IDIV              (HWCAP_IDIVA | HWCAP_IDIVT)
#define HWCAP_LPAE              0x00100000
#define HWCAP_EVTSTRM           0x00200000      /* Not implemented yet.       */

/* Flags passed in AT_HWCAP2. */
#define HWCAP2_AES              0x00000001
#define HWCAP2_PMULL            0x00000002
#define HWCAP2_SHA1             0x00000004
#define HWCAP2_SHA2             0x00000008
#define HWCAP2_CRC32            0x00000010

#endif /* !_MACHINE_ELF_H_ */
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