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839fdcfc0c
Currently macOS and DragonFlyBSD get their own special case and only handle x86. Since all the FreeBSD cases should be general enough for macOS and DragonFlyBSD (and the x86 ones are identical to the existing ones) we can just delete the special cases and reuse the FreeBSD ones. Note that upstream has since removed all the architecture-specific checks in this file, with the only code relevant to us being an endianness check that uses the generic compiler-provided macros. Thus this patch will not be upstreamed, and will be dropped in a future vendor import. Reviewed by: dim MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D29352
192 lines
5 KiB
C
192 lines
5 KiB
C
/*-
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* Copyright (c) 2008-2011 Joseph Koshy
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: _libelf_config.h 3764 2019-06-28 21:44:46Z emaste $
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*/
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#if defined(__APPLE__) || defined(__DragonFly__) || defined(__FreeBSD__)
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/*
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* Define LIBELF_{ARCH,BYTEORDER,CLASS} based on the machine architecture.
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* See also: <machine/elf.h> on FreeBSD.
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*/
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#if defined(__amd64__)
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#define LIBELF_ARCH EM_X86_64
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#define LIBELF_BYTEORDER ELFDATA2LSB
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#define LIBELF_CLASS ELFCLASS64
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#elif defined(__aarch64__)
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#define LIBELF_ARCH EM_AARCH64
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#define LIBELF_BYTEORDER ELFDATA2LSB
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#define LIBELF_CLASS ELFCLASS64
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#elif defined(__arm__)
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#define LIBELF_ARCH EM_ARM
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#if defined(__ARMEB__) /* Big-endian ARM. */
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#define LIBELF_BYTEORDER ELFDATA2MSB
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#else
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#define LIBELF_BYTEORDER ELFDATA2LSB
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#endif
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#define LIBELF_CLASS ELFCLASS32
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#elif defined(__i386__)
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#define LIBELF_ARCH EM_386
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#define LIBELF_BYTEORDER ELFDATA2LSB
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#define LIBELF_CLASS ELFCLASS32
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#elif defined(__ia64__)
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#define LIBELF_ARCH EM_IA_64
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#define LIBELF_BYTEORDER ELFDATA2LSB
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#define LIBELF_CLASS ELFCLASS64
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#elif defined(__mips__)
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#define LIBELF_ARCH EM_MIPS
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#if defined(__MIPSEB__)
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#define LIBELF_BYTEORDER ELFDATA2MSB
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#else
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#define LIBELF_BYTEORDER ELFDATA2LSB
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#endif
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#define LIBELF_CLASS ELFCLASS32
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#elif defined(__powerpc64__)
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#define LIBELF_ARCH EM_PPC64
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#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
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#define LIBELF_BYTEORDER ELFDATA2LSB
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#else
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#define LIBELF_BYTEORDER ELFDATA2MSB
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#endif
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#define LIBELF_CLASS ELFCLASS64
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#elif defined(__powerpc__)
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#define LIBELF_ARCH EM_PPC
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#define LIBELF_BYTEORDER ELFDATA2MSB
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#define LIBELF_CLASS ELFCLASS32
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#elif defined(__riscv) && (__riscv_xlen == 64)
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#define LIBELF_ARCH EM_RISCV
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#define LIBELF_BYTEORDER ELFDATA2LSB
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#define LIBELF_CLASS ELFCLASS64
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#elif defined(__riscv64)
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#define LIBELF_ARCH EM_RISCV
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#define LIBELF_BYTEORDER ELFDATA2LSB
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#define LIBELF_CLASS ELFCLASS64
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#elif defined(__sparc__)
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#define LIBELF_ARCH EM_SPARCV9
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#define LIBELF_BYTEORDER ELFDATA2MSB
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#define LIBELF_CLASS ELFCLASS64
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#else
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#error Unknown architecture.
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#endif
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#endif /* defined(__APPLE__) || defined(__DragonFly__) || defined(__FreeBSD__) */
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/*
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* Definitions for Minix3.
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*/
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#ifdef __minix
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#define LIBELF_ARCH EM_386
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#define LIBELF_BYTEORDER ELFDATA2LSB
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#define LIBELF_CLASS ELFCLASS32
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#endif /* __minix */
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#ifdef __NetBSD__
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#include <machine/elf_machdep.h>
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#if !defined(ARCH_ELFSIZE)
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#error ARCH_ELFSIZE is not defined.
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#endif
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#if ARCH_ELFSIZE == 32
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#define LIBELF_ARCH ELF32_MACHDEP_ID
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#define LIBELF_BYTEORDER ELF32_MACHDEP_ENDIANNESS
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#define LIBELF_CLASS ELFCLASS32
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#define Elf_Note Elf32_Nhdr
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#else
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#define LIBELF_ARCH ELF64_MACHDEP_ID
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#define LIBELF_BYTEORDER ELF64_MACHDEP_ENDIANNESS
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#define LIBELF_CLASS ELFCLASS64
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#define Elf_Note Elf64_Nhdr
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#endif
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#endif /* __NetBSD__ */
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#if defined(__OpenBSD__)
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#include <machine/exec.h>
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#define LIBELF_ARCH ELF_TARG_MACH
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#define LIBELF_BYTEORDER ELF_TARG_DATA
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#define LIBELF_CLASS ELF_TARG_CLASS
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#endif
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/*
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* GNU & Linux compatibility.
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*
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* `__linux__' is defined in an environment runs the Linux kernel and glibc.
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* `__GNU__' is defined in an environment runs a GNU kernel (Hurd) and glibc.
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* `__GLIBC__' is defined for an environment that runs glibc over a non-GNU
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* kernel such as GNU/kFreeBSD.
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*/
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#if defined(__linux__) || defined(__GNU__) || defined(__GLIBC__)
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#if defined(__linux__)
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#include "native-elf-format.h"
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#define LIBELF_CLASS ELFTC_CLASS
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#define LIBELF_ARCH ELFTC_ARCH
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#define LIBELF_BYTEORDER ELFTC_BYTEORDER
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#endif /* defined(__linux__) */
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#if LIBELF_CLASS == ELFCLASS32
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#define Elf_Note Elf32_Nhdr
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#elif LIBELF_CLASS == ELFCLASS64
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#define Elf_Note Elf64_Nhdr
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#else
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#error LIBELF_CLASS needs to be one of ELFCLASS32 or ELFCLASS64
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#endif
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#endif /* defined(__linux__) || defined(__GNU__) || defined(__GLIBC__) */
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