freebsd-nq/sys/arm64/include/elf.h
Peter Grehan bbe80bff7c arm64: HWCAP/HWCAP2 aux args support for 32-bit ARM binaries.
This fixes build/run of golang under COMPAT32 emulation.

PR:	256897
Reviewed by:	andrew, mmel, manu, jhb, cognet, Robert Clausecker
Tested by:	brd, andrew, Robert Clausecker
MFC after:	3 weeks
Relnotes:	yes
Sponsored by:	Rubicon Communications, LLC ("Netgate")
Differential Revision:	https://reviews.freebsd.org/D31175
2021-07-25 19:39:32 +10:00

183 lines
5.8 KiB
C

/*-
* 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 0x12000
#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_ */