247 lines
8.8 KiB
C
247 lines
8.8 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD AND BSD-2-Clause-NetBSD
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*
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* Copyright (c) 2013 M. Warner Losh. 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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* $FreeBSD$
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*/
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/*-
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* Copyright (c) 2013 The NetBSD Foundation, Inc.
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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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* See below starting with the line with $NetBSD...$ for code this applies to.
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*/
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#ifndef __MIPS_ELF_H
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#define __MIPS_ELF_H
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/* FreeBSD specific bits - derived from FreeBSD specific files and changes to old elf.h */
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/*
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* Define __ELF_WORD_SIZE based on the ABI, if not defined yet. This sets
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* the proper defaults when we're not trying to do 32-bit on 64-bit systems.
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* We include both 32 and 64 bit versions so we can support multiple ABIs.
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*/
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#ifndef __ELF_WORD_SIZE
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#if defined(__mips_n64)
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#define __ELF_WORD_SIZE 64
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#else
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#define __ELF_WORD_SIZE 32
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#endif
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#endif
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#include <sys/elf32.h>
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#include <sys/elf64.h>
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#include <sys/elf_generic.h>
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#define ELF_ARCH EM_MIPS
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#define ELF_ARCH32 EM_MIPS
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#define ELF_MACHINE_OK(x) ((x) == ELF_ARCH)
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/* Define "machine" characteristics */
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#if __ELF_WORD_SIZE == 32
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#define ELF_TARG_CLASS ELFCLASS32
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#else
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#define ELF_TARG_CLASS ELFCLASS64
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#endif
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#ifdef __MIPSEB__
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#define ELF_TARG_DATA ELFDATA2MSB
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#else
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#define ELF_TARG_DATA ELFDATA2LSB
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#endif
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#define ELF_TARG_MACH EM_MIPS
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#define ELF_TARG_VER 1
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/*
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* Auxiliary vector entries for passing information to the interpreter.
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*
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* The i386 supplement to the SVR4 ABI specification names this "auxv_t",
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* but POSIX lays claim to all symbols ending with "_t".
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*/
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typedef struct { /* Auxiliary vector entry on initial stack */
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int a_type; /* Entry type. */
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union {
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int a_val; /* Integer value. */
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void *a_ptr; /* Address. */
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void (*a_fcn)(void); /* Function pointer (not used). */
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} a_un;
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} Elf32_Auxinfo;
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typedef struct { /* Auxiliary vector entry on initial stack */
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long a_type; /* Entry type. */
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union {
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long a_val; /* Integer value. */
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void *a_ptr; /* Address. */
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void (*a_fcn)(void); /* Function pointer (not used). */
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} a_un;
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} Elf64_Auxinfo;
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__ElfType(Auxinfo);
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/* Values for a_type. */
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#define AT_NULL 0 /* Terminates the vector. */
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#define AT_IGNORE 1 /* Ignored entry. */
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#define AT_EXECFD 2 /* File descriptor of program to load. */
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#define AT_PHDR 3 /* Program header of program already loaded. */
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#define AT_PHENT 4 /* Size of each program header entry. */
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#define AT_PHNUM 5 /* Number of program header entries. */
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#define AT_PAGESZ 6 /* Page size in bytes. */
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#define AT_BASE 7 /* Interpreter's base address. */
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#define AT_FLAGS 8 /* Flags (unused for i386). */
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#define AT_ENTRY 9 /* Where interpreter should transfer control. */
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#define AT_NOTELF 10 /* Program is not ELF ?? */
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#define AT_UID 11 /* Real uid. */
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#define AT_EUID 12 /* Effective uid. */
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#define AT_GID 13 /* Real gid. */
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#define AT_EGID 14 /* Effective gid. */
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#define AT_EXECPATH 15 /* Path to the executable. */
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#define AT_CANARY 16 /* Canary for SSP */
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#define AT_CANARYLEN 17 /* Length of the canary. */
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#define AT_OSRELDATE 18 /* OSRELDATE. */
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#define AT_NCPUS 19 /* Number of CPUs. */
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#define AT_PAGESIZES 20 /* Pagesizes. */
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#define AT_PAGESIZESLEN 21 /* Number of pagesizes. */
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#define AT_TIMEKEEP 22 /* Pointer to timehands. */
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#define AT_STACKPROT 23 /* Initial stack protection. */
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#define AT_EHDRFLAGS 24 /* e_flags field from elf hdr */
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#define AT_HWCAP 25 /* CPU feature flags. */
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#define AT_HWCAP2 26 /* CPU feature flags 2. */
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#define AT_COUNT 27 /* Count of defined aux entry types. */
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#define ET_DYN_LOAD_ADDR 0x0120000
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/*
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* Constant to mark start of symtab/strtab saved by trampoline
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*/
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#define SYMTAB_MAGIC 0x64656267
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/* from NetBSD's sys/mips/include/elf_machdep.h $NetBSD: elf_machdep.h,v 1.18 2013/05/23 21:39:49 christos Exp $ */
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/* mips relocs. */
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#define R_MIPS_NONE 0
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#define R_MIPS_16 1
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#define R_MIPS_32 2
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#define R_MIPS_REL32 3
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#define R_MIPS_REL R_MIPS_REL32
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#define R_MIPS_26 4
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#define R_MIPS_HI16 5 /* high 16 bits of symbol value */
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#define R_MIPS_LO16 6 /* low 16 bits of symbol value */
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#define R_MIPS_GPREL16 7 /* GP-relative reference */
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#define R_MIPS_LITERAL 8 /* Reference to literal section */
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#define R_MIPS_GOT16 9 /* Reference to global offset table */
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#define R_MIPS_GOT R_MIPS_GOT16
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#define R_MIPS_PC16 10 /* 16 bit PC relative reference */
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#define R_MIPS_CALL16 11 /* 16 bit call thru glbl offset tbl */
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#define R_MIPS_CALL R_MIPS_CALL16
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#define R_MIPS_GPREL32 12
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/* 13, 14, 15 are not defined at this point. */
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#define R_MIPS_UNUSED1 13
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#define R_MIPS_UNUSED2 14
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#define R_MIPS_UNUSED3 15
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/*
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* The remaining relocs are apparently part of the 64-bit Irix ELF ABI.
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*/
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#define R_MIPS_SHIFT5 16
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#define R_MIPS_SHIFT6 17
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#define R_MIPS_64 18
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#define R_MIPS_GOT_DISP 19
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#define R_MIPS_GOT_PAGE 20
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#define R_MIPS_GOT_OFST 21
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#define R_MIPS_GOT_HI16 22
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#define R_MIPS_GOT_LO16 23
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#define R_MIPS_SUB 24
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#define R_MIPS_INSERT_A 25
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#define R_MIPS_INSERT_B 26
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#define R_MIPS_DELETE 27
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#define R_MIPS_HIGHER 28
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#define R_MIPS_HIGHEST 29
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#define R_MIPS_CALL_HI16 30
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#define R_MIPS_CALL_LO16 31
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#define R_MIPS_SCN_DISP 32
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#define R_MIPS_REL16 33
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#define R_MIPS_ADD_IMMEDIATE 34
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#define R_MIPS_PJUMP 35
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#define R_MIPS_RELGOT 36
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#define R_MIPS_JALR 37
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/* TLS relocations */
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#define R_MIPS_TLS_DTPMOD32 38 /* Module number 32 bit */
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#define R_MIPS_TLS_DTPREL32 39 /* Module-relative offset 32 bit */
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#define R_MIPS_TLS_DTPMOD64 40 /* Module number 64 bit */
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#define R_MIPS_TLS_DTPREL64 41 /* Module-relative offset 64 bit */
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#define R_MIPS_TLS_GD 42 /* 16 bit GOT offset for GD */
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#define R_MIPS_TLS_LDM 43 /* 16 bit GOT offset for LDM */
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#define R_MIPS_TLS_DTPREL_HI16 44 /* Module-relative offset, high 16 bits */
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#define R_MIPS_TLS_DTPREL_LO16 45 /* Module-relative offset, low 16 bits */
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#define R_MIPS_TLS_GOTTPREL 46 /* 16 bit GOT offset for IE */
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#define R_MIPS_TLS_TPREL32 47 /* TP-relative offset, 32 bit */
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#define R_MIPS_TLS_TPREL64 48 /* TP-relative offset, 64 bit */
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#define R_MIPS_TLS_TPREL_HI16 49 /* TP-relative offset, high 16 bits */
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#define R_MIPS_TLS_TPREL_LO16 50 /* TP-relative offset, low 16 bits */
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#define R_MIPS_max 51
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#define R_TYPE(name) __CONCAT(R_MIPS_,name)
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#define R_MIPS16_min 100
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#define R_MIPS16_26 100
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#define R_MIPS16_GPREL 101
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#define R_MIPS16_GOT16 102
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#define R_MIPS16_CALL16 103
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#define R_MIPS16_HI16 104
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#define R_MIPS16_LO16 105
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#define R_MIPS16_max 106
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#define R_MIPS_COPY 126
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#define R_MIPS_JUMP_SLOT 127
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#endif /* __MIPS_ELF_H */
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