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94c02410e437aac54f9c5995fc361750937ff136
retrobsd/sys/include/exec_elf.h
Serge Vakulenko 94c02410e4 Kconfig: rename machine to architecture, ident to board. 
Make timezone and maxusers parameters optional.

Enable kernel options UCB_METER, EXEC_AOUT, EXEC_ELF and EXEC_SCRIPT
by default.
2015-09-03 12:51:56 -07:00

491 lines
20 KiB
C
Raw Blame History

/* $NetBSD: exec_elf.h,v 1.37.4.1 2000/07/26 23:57:06 mycroft Exp $ */
/*-
* Copyright (c) 1994 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Christos Zoulas.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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 _SYS_EXEC_ELF_H_
#define _SYS_EXEC_ELF_H_
#ifndef _SYS_TYPES_H_
#include <machine/types.h>
#endif
/*
* ELF Header
*/
#define ELF_NIDENT 16
struct elf_ehdr {
unsigned char e_ident[ELF_NIDENT]; /* Id bytes */
unsigned short e_type; /* file type */
unsigned short e_machine; /* machine type */
unsigned int e_version; /* version number */
unsigned int e_entry; /* entry point */
unsigned int e_phoff; /* Program header table offset */
unsigned int e_shoff; /* Section header table offset */
unsigned int e_flags; /* Processor flags (currently unused, should be 0) */
unsigned short e_ehsize; /* sizeof elf_ehdr */
unsigned short e_phentsize; /* Program header entry size */
unsigned short e_phnum; /* Number of program headers */
unsigned short e_shentsize; /* Section header entry size */
unsigned short e_shnum; /* Number of section headers */
unsigned short e_shstrndx; /* String table index */
};
/* e_ident offsets */
#define EI_MAG0 0 /* first byte of magic number */
#define ELFMAG0 0x7f
#define EI_MAG1 1 /* second byte of magic number */
#define ELFMAG1 'E'
#define EI_MAG2 2 /* third byte of magic number */
#define ELFMAG2 'L'
#define EI_MAG3 3 /* fourth byte of magic number */
#define ELFMAG3 'F'
#define EI_CLASS 4 /* 5:th byte: File class */
#define ELFCLASSNONE 0 /* Invalid class */
#define ELFCLASS32 1 /* 32-bit objects */
#define ELFCLASS64 2 /* 64-bit objects */
#define ELFCLASSNUM 3
#define EI_DATA 5 /* 6:th byte: Data encoding */
#define ELFDATANONE 0 /* Unknown data format */
#define ELFDATA2LSB 1 /* two's complement, little-endian */
#define ELFDATA2MSB 2 /* two's complement, big-endian */
#define EI_VERSION 6 /* Version number of the ELF specification */
#define EV_NONE 0 /* Invalid version */
#define EV_CURRENT 1 /* Current version */
#define EV_NUM 2
#define EI_OSABI 7 /* Operating system/ABI identification */
#define ELFOSABI_SYSV 0 /* UNIX System V ABI */
#define ELFOSABI_HPUX 1 /* HP-UX operating system */
#define ELFOSABI_NETBSD /* NetBSD ABI */
#define ELFOSABI_LINUX /* Linux ABI */
#define ELFOSABI_SOLARIS /* Solaris ABI */
#define ELFOSABI_FREEBSD /* FreeBSD ABI */
#define ELFOSABI_ARM /* ARM architecture ABI */
#define ELFOSABI_STANDALONE 255 /* Stand-alone (embedded) application */
#define EI_ABIVERSION 8 /* ABI version */
#define EI_PAD 9 /* Start of padding bytes up to EI_NIDENT*/
#define ELFMAG "\177ELF"
#define SELFMAG 4
/* e_type */
#define ET_NONE 0 /* Unknown file type */
#define ET_REL 1 /* A Relocatable file */
#define ET_EXEC 2 /* An Executable file */
#define ET_DYN 3 /* A Shared object file */
#define ET_CORE 4 /* A Core file */
#define ET_NUM 5
#define ET_LOOS 0xfe00 /* Operating system specific range */
#define ET_HIOS 0xfeff
#define ET_LOPROC 0xff00 /* Processor-specific range */
#define ET_HIPROC 0xffff
/* e_machine */
#define EM_NONE 0 /* No machine */
#define EM_M32 1 /* AT&T WE 32100 */
#define EM_SPARC 2 /* SPARC */
#define EM_386 3 /* Intel 80386 */
#define EM_68K 4 /* Motorola 68000 */
#define EM_88K 5 /* Motorola 88000 */
#define EM_486 6 /* Intel 80486 */
#define EM_860 7 /* Intel 80860 */
#define EM_MIPS 8 /* MIPS I Architecture */
#define EM_S370 9 /* Amdahl UTS on System/370 */
#define EM_MIPS_RS3_LE 10 /* MIPS RS3000 Little-endian */
#define EM_RS6000 11 /* IBM RS/6000 XXX reserved */
#define EM_PARISC 15 /* Hewlett-Packard PA-RISC */
#define EM_NCUBE 16 /* NCube XXX reserved */
#define EM_VPP500 17 /* Fujitsu VPP500 */
#define EM_SPARC32PLUS 18 /* Enhanced instruction set SPARC */
#define EM_960 19 /* Intel 80960 */
#define EM_PPC 20 /* PowerPC */
#define EM_V800 36 /* NEC V800 */
#define EM_FR20 37 /* Fujitsu FR20 */
#define EM_RH32 38 /* TRW RH-32 */
#define EM_RCE 39 /* Motorola RCE */
#define EM_ARM 40 /* Advanced RISC Machines ARM */
#define EM_ALPHA 41 /* DIGITAL Alpha */
#define EM_SH 42 /* Hitachi Super-H */
#define EM_SPARCV9 43 /* SPARC Version 9 */
#define EM_TRICORE 44 /* Siemens Tricore */
#define EM_ARC 45 /* Argonaut RISC Core */
#define EM_H8_300 46 /* Hitachi H8/300 */
#define EM_H8_300H 47 /* Hitachi H8/300H */
#define EM_H8S 48 /* Hitachi H8S */
#define EM_H8_500 49 /* Hitachi H8/500 */
#define EM_IA_64 50 /* Intel Merced Processor */
#define EM_MIPS_X 51 /* Stanford MIPS-X */
#define EM_COLDFIRE 52 /* Motorola Coldfire */
#define EM_68HC12 53 /* Motorola MC68HC12 */
#define EM_VAX 75 /* DIGITAL VAX */
#define EM_ALPHA_EXP 36902 /* used by NetBSD/alpha; obsolete */
#define EM_NUM 36903
/*
* ELF Program Header
*/
struct elf_phdr {
unsigned int p_type; /* entry type */
unsigned int p_offset; /* file offset */
unsigned int p_vaddr; /* virtual address */
unsigned int p_paddr; /* physical address (reserved, 0) */
unsigned int p_filesz; /* file size of segment (may be 0) */
unsigned int p_memsz; /* memory size of segment (may be 0) */
unsigned int p_flags; /* flags */
unsigned int p_align; /* memory & file alignment */
};
/* p_type */
#define PT_NULL 0 /* Program header table entry unused */
#define PT_LOAD 1 /* Loadable program segment */
#define PT_DYNAMIC 2 /* Dynamic linking information */
#define PT_INTERP 3 /* Program interpreter */
#define PT_NOTE 4 /* Auxiliary information */
#define PT_SHLIB 5 /* Reserved, unspecified semantics */
#define PT_PHDR 6 /* Entry for header table itself */
#define PT_NUM 7
#define PT_LOPROC 0x70000000 /* Start of processor-specific semantics */
#define PT_HIPROC 0x7fffffff /* end of processor-specific semantics */
#define PT_GNU_STACK /* GNU stack extension */
/* p_flags */
#define PF_R 0x4 /* Segment is readable */
#define PF_W 0x2 /* Segment is writable */
#define PF_X 0x1 /* Segment is executable */
/* A text segment commonly have PF_X|PF_R, a data segment PF_X|PF_W and PF_R */
#define PF_MASKOS 0x0ff00000 /* Opersting system specific values */
#define PF_MASKPROC 0xf0000000 /* Processor-specific values */
#define PT_MIPS_REGINFO 0x70000000
/*
* Section Headers
*/
struct elf_shdr {
unsigned int sh_name; /* section name (.shstrtab index) */
unsigned int sh_type; /* section type */
unsigned int sh_flags; /* section flags */
unsigned int sh_addr; /* virtual address */
unsigned int sh_offset; /* file offset */
unsigned int sh_size; /* section size */
unsigned int sh_link; /* link to another */
unsigned int sh_info; /* misc info */
unsigned int sh_addralign; /* memory alignment */
unsigned int sh_entsize; /* table entry size */
};
/* sh_type */
#define SHT_NULL 0 /* inactive */
#define SHT_PROGBITS 1 /* program defined contents */
#define SHT_SYMTAB 2 /* holds symbol table */
#define SHT_STRTAB 3 /* holds string table */
#define SHT_RELA 4 /* holds relocation info with explicit addends */
#define SHT_HASH 5 /* holds symbol hash table */
#define SHT_DYNAMIC 6 /* holds dynamic linking information */
#define SHT_NOTE 7 /* holds information marking */
#define SHT_NOBITS 8 /* holds a section that does not occupy space */
#define SHT_REL 9 /* holds relocation info without explicit addends */
#define SHT_SHLIB 10 /* reserved with unspecified semantics */
#define SHT_DYNSYM 11 /* holds a minimal set of dynamic linking symbols */
#define SHT_NUM 12
#define SHT_LOOS 0x60000000 /* Operating system specific range */
#define SHT_HIOS 0x6fffffff
#define SHT_LOPROC 0x70000000 /* Processor-specific range */
#define SHT_HIPROC 0x7fffffff
#define SHT_LOUSER 0x80000000 /* Application-specific range */
#define SHT_HIUSER 0xffffffff
/* sh_flags */
#define SHF_WRITE 0x1 /* Section contains writable data */
#define SHF_ALLOC 0x2 /* Section occupies memory */
#define SHF_EXECINSTR 0x4 /* Section contains executable insns */
#define SHF_MASKOS 0x0f000000 /* Operating system specific values */
#define SHF_MASKPROC 0xf0000000 /* Processor-specific values */
/*
* Symbol Table
*/
struct elf_sym {
unsigned int st_name; /* Symbol name (.symtab index) */
unsigned int st_value; /* value of symbol */
unsigned int st_size; /* size of symbol */
unsigned char st_info; /* type / binding attrs */
unsigned char st_other; /* unused */
unsigned short st_shndx; /* section index of symbol */
};
/* Symbol Table index of the undefined symbol */
#define ELF_SYM_UNDEFINED 0
/* st_info: Symbol Bindings */
#define STB_LOCAL 0 /* local symbol */
#define STB_GLOBAL 1 /* global symbol */
#define STB_WEAK 2 /* weakly defined global symbol */
#define STB_NUM 3
#define STB_LOOS 10 /* Operating system specific range */
#define STB_HIOS 12
#define STB_LOPROC 13 /* Processor-specific range */
#define STB_HIPROC 15
/* st_info: Symbol Types */
#define STT_NOTYPE 0 /* Type not specified */
#define STT_OBJECT 1 /* Associated with a data object */
#define STT_FUNC 2 /* Associated with a function */
#define STT_SECTION 3 /* Associated with a section */
#define STT_FILE 4 /* Associated with a file name */
#define STT_NUM 5
#define STT_LOOS 10 /* Operating system specific range */
#define STT_HIOS 12
#define STT_LOPROC 13 /* Processor-specific range */
#define STT_HIPROC 15
/* st_info utility macros */
#define ELF_ST_BIND(info) ((unsigned int)(info) >> 4)
#define ELF_ST_TYPE(info) ((unsigned int)(info) & 0xf)
#define ELF_ST_INFO(bind,type) ((unsigned char)(((bind) << 4) | ((type) & 0xf)))
/*
* Special section indexes
*/
#define SHN_UNDEF 0 /* Undefined section */
#define SHN_LORESERVE 0xff00 /* Start of Reserved range */
#define SHN_ABS 0xfff1 /* Absolute symbols */
#define SHN_COMMON 0xfff2 /* Common symbols */
#define SHN_HIRESERVE 0xffff
#define SHN_LOPROC 0xff00 /* Start of Processor-specific range */
#define SHN_HIPROC 0xff1f
#define SHN_LOOS 0xff20 /* Operating system specific range */
#define SHN_HIOS 0xff3f
#define SHN_MIPS_ACOMMON 0xff00
#define SHN_MIPS_TEXT 0xff01
#define SHN_MIPS_DATA 0xff02
#define SHN_MIPS_SCOMMON 0xff03
/*
* Relocation Entries
*/
struct elf_rel {
unsigned int r_offset; /* where to do it */
unsigned int r_info; /* index & type of relocation */
};
struct elf_rela {
unsigned int r_offset; /* where to do it */
unsigned int r_info; /* index & type of relocation */
int r_addend; /* adjustment value */
};
/* r_info utility macros */
#define ELF_R_SYM(info) ((info) >> 8)
#define ELF_R_TYPE(info) ((info) & 0xff)
#define ELF_R_INFO(sym, type) (((sym) << 8) + (unsigned char)(type))
/*
* Dynamic Section structure array
*/
struct elf_dyn {
unsigned int d_tag; /* entry tag value */
union {
unsigned int d_ptr;
unsigned int d_val;
} d_un;
};
/* d_tag */
#define DT_NULL 0 /* Marks end of dynamic array */
#define DT_NEEDED 1 /* Name of needed library (DT_STRTAB offset) */
#define DT_PLTRELSZ 2 /* Size, in bytes, of relocations in PLT */
#define DT_PLTGOT 3 /* Address of PLT and/or GOT */
#define DT_HASH 4 /* Address of symbol hash table */
#define DT_STRTAB 5 /* Address of string table */
#define DT_SYMTAB 6 /* Address of symbol table */
#define DT_RELA 7 /* Address of Rela relocation table */
#define DT_RELASZ 8 /* Size, in bytes, of DT_RELA table */
#define DT_RELAENT 9 /* Size, in bytes, of one DT_RELA entry */
#define DT_STRSZ 10 /* Size, in bytes, of DT_STRTAB table */
#define DT_SYMENT 11 /* Size, in bytes, of one DT_SYMTAB entry */
#define DT_INIT 12 /* Address of initialization function */
#define DT_FINI 13 /* Address of termination function */
#define DT_SONAME 14 /* Shared object name (DT_STRTAB offset) */
#define DT_RPATH 15 /* Library search path (DT_STRTAB offset) */
#define DT_SYMBOLIC 16 /* Start symbol search within local object */
#define DT_REL 17 /* Address of Rel relocation table */
#define DT_RELSZ 18 /* Size, in bytes, of DT_REL table */
#define DT_RELENT 19 /* Size, in bytes, of one DT_REL entry */
#define DT_PLTREL 20 /* Type of PLT relocation entries */
#define DT_DEBUG 21 /* Used for debugging; unspecified */
#define DT_TEXTREL 22 /* Relocations might modify non-writable seg */
#define DT_JMPREL 23 /* Address of relocations associated with PLT */
#define DT_BIND_NOW 24 /* Process all relocations at load-time */
#define DT_INIT_ARRAY 25 /* Address of initialization function array */
#define DT_FINI_ARRAY 26 /* Size, in bytes, of DT_INIT_ARRAY array */
#define DT_INIT_ARRAYSZ 27 /* Address of termination function array */
#define DT_FINI_ARRAYSZ 28 /* Size, in bytes, of DT_FINI_ARRAY array*/
#define DT_NUM 29
#define DT_LOOS 0x60000000 /* Operating system specific range */
#define DT_HIOS 0x6fffffff
#define DT_LOPROC 0x70000000 /* Processor-specific range */
#define DT_HIPROC 0x7fffffff
/*
* Auxiliary Vectors
*/
struct elf_auxinfo {
unsigned int a_type; /* 32-bit id */
unsigned int a_v; /* 32-bit id */
};
/* a_type */
#define AT_NULL 0 /* Marks end of array */
#define AT_IGNORE 1 /* No meaning, a_un is undefined */
#define AT_EXECFD 2 /* Open file descriptor of object file */
#define AT_PHDR 3 /* &phdr[0] */
#define AT_PHENT 4 /* sizeof(phdr[0]) */
#define AT_PHNUM 5 /* # phdr entries */
#define AT_PAGESZ 6 /* PAGESIZE */
#define AT_BASE 7 /* Interpreter base addr */
#define AT_FLAGS 8 /* Processor flags */
#define AT_ENTRY 9 /* Entry address of executable */
#define AT_DCACHEBSIZE 10 /* Data cache block size */
#define AT_ICACHEBSIZE 11 /* Instruction cache block size */
#define AT_UCACHEBSIZE 12 /* Unified cache block size */
/* Vendor specific */
#define AT_MIPS_NOTELF 10 /* XXX a_val != 0 -> MIPS XCOFF executable */
#define AT_SUN_UID 2000 /* euid */
#define AT_SUN_RUID 2001 /* ruid */
#define AT_SUN_GID 2002 /* egid */
#define AT_SUN_RGID 2003 /* rgid */
/* Solaris kernel specific */
#define AT_SUN_LDELF 2004 /* dynamic linker's ELF header */
#define AT_SUN_LDSHDR 2005 /* dynamic linker's section header */
#define AT_SUN_LDNAME 2006 /* dynamic linker's name */
#define AT_SUN_LPGSIZE 2007 /* large pagesize */
/* Other information */
#define AT_SUN_PLATFORM 2008 /* sysinfo(SI_PLATFORM) */
#define AT_SUN_HWCAP 2009 /* process hardware capabilities */
#define AT_SUN_IFLUSH 2010 /* do we need to flush the instruction cache? */
#define AT_SUN_CPU 2011 /* cpu name */
/* ibcs2 emulation band aid */
#define AT_SUN_EMUL_ENTRY 2012 /* coff entry point */
#define AT_SUN_EMUL_EXECFD 2013 /* coff file descriptor */
/* Executable's fully resolved name */
#define AT_SUN_EXECNAME 2014
/*
* Note Headers
*/
struct elf_nhdr {
unsigned int n_namesz;
unsigned int n_descsz;
unsigned int n_type;
};
#define ELF_NOTE_TYPE_OSVERSION 1
/* NetBSD-specific note type: Emulation name. desc is emul name string. */
#define ELF_NOTE_NETBSD_TYPE_EMULNAME 2
/* NetBSD-specific note name and description sizes */
#define ELF_NOTE_NETBSD_NAMESZ 7
#define ELF_NOTE_NETBSD_DESCSZ 4
/* NetBSD-specific note name */
#define ELF_NOTE_NETBSD_NAME "NetBSD\0\0"
/* GNU-specific note name and description sizes */
#define ELF_NOTE_GNU_NAMESZ 4
#define ELF_NOTE_GNU_DESCSZ 4
/* GNU-specific note name */
#define ELF_NOTE_GNU_NAME "GNU\0"
/* GNU-specific OS/version value stuff */
#define ELF_NOTE_GNU_OSMASK (unsigned int)0xff000000
#define ELF_NOTE_GNU_OSLINUX (unsigned int)0x01000000
#define ELF_NOTE_GNU_OSMACH (unsigned int)0x00000000
#include <machine/elf_machdep.h>
#ifdef _KERNEL
#define ELF_AUX_ENTRIES 8 /* Size of aux array passed to loader */
struct elf_args {
unsigned int arg_entry; /* program entry point */
unsigned int arg_interp; /* Interpreter load address */
unsigned int arg_phaddr; /* program header address */
unsigned int arg_phentsize; /* Size of program header */
unsigned int arg_phnum; /* Number of program headers */
};
#ifndef _LKM
#include "opt_execfmt.h"
#endif
int exec_elf_makecmds __P((struct proc *, struct exec_package *));
int elf_read_from __P((struct proc *, struct vnode *, u_long,
caddr_t, int));
void *elf_copyargs __P((struct exec_package *, struct ps_strings *,
void *, void *));
/* common */
int exec_elf_setup_stack __P((struct proc *, struct exec_package *));
#endif /* _KERNEL */
#endif /* !_SYS_EXEC_ELF_H_ */
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