FreeBSD/Linux Kernel Cross Reference
sys/arm64/include/elf.h

     /*-
      * 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_
    
    /*
     * ELF definitions for the AArch64 architecture.
     */
    
    #include <sys/elf32.h>  /* Definitions common to all 32 bit architectures. */
    #include <sys/elf64.h>  /* Definitions common to all 64 bit architectures. */
    
    #ifndef __ELF_WORD_SIZE
    #define __ELF_WORD_SIZE 64      /* Used by <sys/elf_generic.h> */
    #endif
    
    #include <sys/elf_generic.h>
    
    /*
     * Auxiliary vector entries for passing information to the interpreter.
     */
    
    typedef struct {        /* Auxiliary vector entry on initial stack */
            int     a_type;                 /* Entry type. */
            union {
                    int     a_val;          /* Integer value. */
            } 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);
    
    #ifdef _MACHINE_ELF_WANT_32BIT
    #define ELF_ARCH        EM_ARM
    #else
    #define ELF_ARCH        EM_AARCH64
    #endif
    
    #define ELF_MACHINE_OK(x) ((x) == (ELF_ARCH))
    
    /* Define "machine" characteristics */
    #if __ELF_WORD_SIZE == 64
    #define ELF_TARG_CLASS  ELFCLASS64
    #define ELF_TARG_DATA   ELFDATA2LSB
    #define ELF_TARG_MACH   EM_AARCH64
    #define ELF_TARG_VER    1
    #else
    #define ELF_TARG_CLASS  ELFCLASS32
    #define ELF_TARG_DATA   ELFDATA2LSB
    #define ELF_TARG_MACH   EM_ARM
    #define ELF_TARG_VER    1
    #endif
    
    #if __ELF_WORD_SIZE == 32
    #define ET_DYN_LOAD_ADDR 0x01001000
    #else
    #define ET_DYN_LOAD_ADDR 0x100000
    #endif
    
    /* HWCAP */
    #define HWCAP_FP                0x00000001
    #define HWCAP_ASIMD             0x00000002
    #define HWCAP_EVTSTRM           0x00000004
    #define HWCAP_AES               0x00000008
    #define HWCAP_PMULL             0x00000010
   #define HWCAP_SHA1              0x00000020
   #define HWCAP_SHA2              0x00000040
   #define HWCAP_CRC32             0x00000080
   #define HWCAP_ATOMICS           0x00000100
   #define HWCAP_FPHP              0x00000200
   #define HWCAP_ASIMDHP           0x00000400
   /*
    * XXX: The following bits (from CPUID to FLAGM) were originally incorrect,
    * but later changed to match the Linux definitions. No compatibility code is
    * provided, as the fix was expected to result in near-zero fallout.
    */
   #define HWCAP_CPUID             0x00000800
   #define HWCAP_ASIMDRDM          0x00001000
   #define HWCAP_JSCVT             0x00002000
   #define HWCAP_FCMA              0x00004000
   #define HWCAP_LRCPC             0x00008000
   #define HWCAP_DCPOP             0x00010000
   #define HWCAP_SHA3              0x00020000
   #define HWCAP_SM3               0x00040000
   #define HWCAP_SM4               0x00080000
   #define HWCAP_ASIMDDP           0x00100000
   #define HWCAP_SHA512            0x00200000
   #define HWCAP_SVE               0x00400000
   #define HWCAP_ASIMDFHM          0x00800000
   #define HWCAP_DIT               0x01000000
   #define HWCAP_USCAT             0x02000000
   #define HWCAP_ILRCPC            0x04000000
   #define HWCAP_FLAGM             0x08000000
   #define HWCAP_SSBS              0x10000000
   #define HWCAP_SB                0x20000000
   #define HWCAP_PACA              0x40000000
   #define HWCAP_PACG              0x80000000
   
   /* HWCAP2 */
   #define HWCAP2_DCPODP           0x00000001
   #define HWCAP2_SVE2             0x00000002
   #define HWCAP2_SVEAES           0x00000004
   #define HWCAP2_SVEPMULL         0x00000008
   #define HWCAP2_SVEBITPERM       0x00000010
   #define HWCAP2_SVESHA3          0x00000020
   #define HWCAP2_SVESM4           0x00000040
   #define HWCAP2_FLAGM2           0x00000080
   #define HWCAP2_FRINT            0x00000100
   #define HWCAP2_SVEI8MM          0x00000200
   #define HWCAP2_SVEF32MM         0x00000400
   #define HWCAP2_SVEF64MM         0x00000800
   #define HWCAP2_SVEBF16          0x00001000
   #define HWCAP2_I8MM             0x00002000
   #define HWCAP2_BF16             0x00004000
   #define HWCAP2_DGH              0x00008000
   #define HWCAP2_RNG              0x00010000
   #define HWCAP2_BTI              0x00020000
   
   #ifdef COMPAT_FREEBSD32
   /* ARM HWCAP */
   #define HWCAP32_HALF            0x00000002      /* Always set.               */
   #define HWCAP32_THUMB           0x00000004      /* Always set.               */
   #define HWCAP32_FAST_MULT       0x00000010      /* Always set.               */
   #define HWCAP32_VFP             0x00000040
   #define HWCAP32_EDSP            0x00000080      /* Always set.               */
   #define HWCAP32_NEON            0x00001000
   #define HWCAP32_VFPv3           0x00002000
   #define HWCAP32_TLS             0x00008000      /* Always set.               */
   #define HWCAP32_VFPv4           0x00010000
   #define HWCAP32_IDIVA           0x00020000      /* Always set.               */
   #define HWCAP32_IDIVT           0x00040000      /* Always set.               */
   #define HWCAP32_VFPD32          0x00080000      /* Always set.               */
   #define HWCAP32_LPAE            0x00100000      /* Always set.               */
   
   #define HWCAP32_DEFAULT \
      (HWCAP32_HALF | HWCAP32_THUMB | HWCAP32_FAST_MULT | HWCAP32_EDSP |\
       HWCAP32_TLS | HWCAP32_IDIVA | HWCAP32_IDIVT | HWCAP32_VFPD32 |   \
       HWCAP32_LPAE)
   
   /* ARM HWCAP2 */
   #define HWCAP32_2_AES           0x00000001
   #define HWCAP32_2_PMULL         0x00000002
   #define HWCAP32_2_SHA1          0x00000004
   #define HWCAP32_2_SHA2          0x00000008
   #define HWCAP32_2_CRC32         0x00000010
   #endif
   
   #endif /* !_MACHINE_ELF_H_ */

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