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AROS-v0/compiler/include/dos/elf.h

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#ifndef DOS_ELF_H
#define DOS_ELF_H
/*
Copyright (C) 1995-2020, The AROS Development Team. All rights reserved.
$Id$
Desc: Definition of ELF file structures.
Lang: english
*/
#include <exec/types.h>
/*
* Define one of ELF_64BIT or ELF_32BIT in your code if you want to enforce specific
* version of ELF structures. Otherwize it fails back to your native machine's size.
*/
#ifdef ELF_64BIT
#define elf_ptr_t UQUAD
#define elf_uintptr_t UQUAD
#define elf_intptr_t QUAD
#endif
#ifdef ELF_32BIT
#define elf_ptr_t ULONG
#define elf_uintptr_t ULONG
#define elf_intptr_t LONG
#endif
#ifndef elf_ptr_t
#define elf_ptr_t APTR
#define elf_uintptr_t IPTR
#define elf_intptr_t SIPTR
#if (__WORDSIZE == 64)
#define ELF_64BIT
#endif
#endif
#define SHT_PROGBITS 1
#define SHT_SYMTAB 2
#define SHT_STRTAB 3
#define SHT_RELA 4
#define SHT_NOBITS 8
#define SHT_REL 9
#define SHT_SYMTAB_SHNDX 18
#define SHT_ARM_ATTRIBUTES 0x70000003
#define ET_REL 1
#define ET_EXEC 2
#define EM_386 3
#define EM_68K 4
#define EM_PPC 20
#define EM_ARM 40
#define EM_X86_64 62 /* AMD x86-64 */
#define R_386_NONE 0
#define R_386_32 1
#define R_386_PC32 2
/* AMD x86-64 relocations. */
#define R_X86_64_NONE 0 /* No reloc */
#define R_X86_64_64 1 /* Direct 64 bit */
#define R_X86_64_PC32 2 /* PC relative 32 bit signed */
#define R_X86_64_PLT32 4
#define R_X86_64_32 10
#define R_X86_64_32S 11
#define R_X86_64_PC64 24
#define R_68K_NONE 0
#define R_68K_32 1
#define R_68K_16 2
#define R_68K_8 3
#define R_68K_PC32 4
#define R_68K_PC16 5
#define R_68K_PC8 6
#define R_PPC_NONE 0
#define R_PPC_ADDR32 1
#define R_PPC_ADDR16_LO 4
#define R_PPC_ADDR16_HA 6
#define R_PPC_REL24 10
#define R_PPC_REL32 26
#define R_PPC_REL16_LO 250
#define R_PPC_REL16_HA 252
#define R_ARM_NONE 0
#define R_ARM_PC24 1
#define R_ARM_ABS32 2
#define R_ARM_CALL 28
#define R_ARM_JUMP24 29
#define R_ARM_TARGET1 38
#define R_ARM_V4BX 40
#define R_ARM_TARGET2 41
#define R_ARM_PREL31 42
#define R_ARM_MOVW_ABS_NC 43
#define R_ARM_MOVT_ABS 44
#define R_ARM_THM_CALL 10
#define R_ARM_THM_JUMP24 30
#define R_ARM_THM_MOVW_ABS_NC 47
#define R_ARM_THM_MOVT_ABS 48
#define STT_NOTYPE 0
#define STT_OBJECT 1
#define STT_FUNC 2
#define STT_SECTION 3
#define STT_FILE 4
#define STT_LOPROC 13
#define STT_HIPROC 15
#define STB_LOCAL 0
#define STB_GLOBAL 1
#define STB_WEAK 2
#define STB_LOOS 10
#define STB_GNU_UNIQUE 10
#define STB_HIOS 12
#define STB_LOPROC 13
#define STB_HIPROC 15
#define SHN_UNDEF 0
#define SHN_LORESERVE 0xff00
#define SHN_ABS 0xfff1
#define SHN_COMMON 0xfff2
#define SHN_XINDEX 0xffff
#define SHN_HIRESERVE 0xffff
#define SHF_WRITE (1 << 0)
#define SHF_ALLOC (1 << 1)
#define SHF_EXECINSTR (1 << 2)
#define ELF_ST_TYPE(i) ((i) & 0x0F)
#define EI_VERSION 6
#define EV_CURRENT 1
#define EI_DATA 5
#define ELFDATA2LSB 1
#define ELFDATA2MSB 2
#define EI_CLASS 4
#define ELFCLASS32 1
#define ELFCLASS64 2 /* 64-bit objects */
#define EI_OSABI 7
#define EI_ABIVERSION 8
#define ELFOSABI_AROS 15
#define PF_X (1 << 0)
struct elfheader
{
UBYTE ident[16];
UWORD type;
UWORD machine;
ULONG version;
elf_ptr_t entry;
elf_uintptr_t phoff;
elf_uintptr_t shoff;
ULONG flags;
UWORD ehsize;
UWORD phentsize;
UWORD phnum;
UWORD shentsize;
UWORD shnum;
UWORD shstrndx;
};
struct sheader
{
ULONG name;
ULONG type;
elf_uintptr_t flags;
elf_ptr_t addr;
elf_uintptr_t offset;
elf_uintptr_t size;
ULONG link;
ULONG info;
elf_uintptr_t addralign;
elf_uintptr_t entsize;
};
#define PT_LOAD 1
#ifdef ELF_64BIT
struct pheader
{
ULONG type;
ULONG flags;
elf_uintptr_t offset;
elf_ptr_t vaddr;
elf_ptr_t paddr;
elf_uintptr_t filesz;
elf_uintptr_t memsz;
elf_uintptr_t align;
};
struct symbol
{
ULONG name; /* Offset of the name string in the string table */
UBYTE info; /* What kind of symbol is this ? (global, variable, etc) */
UBYTE other; /* undefined */
UWORD shindex; /* In which section is the symbol defined ? */
elf_uintptr_t value; /* Varies; eg. the offset of the symbol in its hunk */
elf_uintptr_t size; /* How much memory does the symbol occupy */
};
#define ELF_R_SYM(i) (ULONG)((i) >> 32)
#define ELF_R_TYPE(i) (ULONG)((i) & 0xffffffffULL)
#define ELF_R_INFO(sym, type) (((UQUAD)(sym) << 32) + (type))
#else
struct pheader
{
ULONG type;
ULONG offset;
elf_ptr_t vaddr;
elf_ptr_t paddr;
ULONG filesz;
ULONG memsz;
ULONG flags;
ULONG align;
};
struct symbol
{
ULONG name; /* Offset of the name string in the string table */
elf_uintptr_t value; /* Varies; eg. the offset of the symbol in its hunk */
elf_uintptr_t size; /* How much memory does the symbol occupy */
UBYTE info; /* What kind of symbol is this ? (global, variable, etc) */
UBYTE other; /* undefined */
UWORD shindex; /* In which section is the symbol defined ? */
};
#define ELF_R_SYM(val) ((val) >> 8)
#define ELF_R_TYPE(val) ((val) & 0xff)
#define ELF_R_INFO(sym, type) (((sym) << 8) + ((type) & 0xff))
#endif
#define ELF_S_BIND(val) ((val) >> 4)
#define ELF_S_TYPE(val) ((val) & 0xF)
#define ELF_S_INFO(bind, type) (((bind) << 4) + ((type) & 0xF))
struct rel
{
elf_uintptr_t offset; /* Address of the relocation relative to the section it refers to */
elf_uintptr_t info; /* Type of the relocation */
};
struct rela
{
elf_uintptr_t offset; /* Address of the relocation relative to the section it refers to */
elf_uintptr_t info; /* Type of the relocation */
elf_intptr_t addend; /* Constant addend used to compute value */
};
/* Note: the conversion below is not in line with ELF specification and is fixed in GNU binutils since 2008
* See: https://sourceware.org/bugzilla/show_bug.cgi?id=5900
*/
/* convert section header number to array index */
/*#define SHINDEX(n) \
((n) < SHN_LORESERVE ? (n) : ((n) <= SHN_HIRESERVE ? 0 : (n) - (SHN_HIRESERVE + 1 - SHN_LORESERVE)))*/
/* convert section header array index to section number */
/*#define SHNUM(i) \
((i) < SHN_LORESERVE ? (i) : (i) + (SHN_HIRESERVE + 1 - SHN_LORESERVE))*/
/* ARM-specific attributes section definitions follow */
#define ATTR_VERSION_CURRENT 0x41
struct attrs_section
{
ULONG size;
char vendor[1]; /* NULL-terminated name */
/* Vendor-specific subsections follow */
};
struct attrs_subsection
{
UBYTE tag;
ULONG size;
} __attribute__((packed));
#define Tag_File 1
#define Tag_Section 2
#define Tag_Symbol 3
#define Tag_CPU_raw_name 4
#define Tag_CPU_name 5
#define Tag_CPU_arch 6
#define Tag_FP_arch 10
#define Tag_compatibility 32
#define Tag_also_compatible_with 65
#define Tag_conformance 67
/* Tag_CPU_arch values */
#define ELF_CPU_PREv4 0
#define ELF_CPU_ARMv4 1
#define ELF_CPU_ARMv4T 2
#define ELF_CPU_ARMv5T 3
#define ELF_CPU_ARMv5TE 4
#define ELF_CPU_ARMv5TEJ 5
#define ELF_CPU_ARMv6 6
#define ELF_CPU_ARMv6KZ 7
#define ELF_CPU_ARMv6T2 8
#define ELF_CPU_ARMv6K 9
#define ELF_CPU_ARMv7 10
#define ELF_CPU_ARM_v6M 11
#define ELF_CPU_ARMv6SM 12
#define ELF_CPU_ARMv7EM 13
/* Tag_FP_arch values */
#define ELF_FP_None 0
#define ELF_FP_v1 1
#define ELF_FP_v2 2
#define ELF_FP_v3 3
#define ELF_FP_v3_Short 4
#define ELF_FP_v4 5
#define ELF_FP_v4_Short 6
/* Machine's native values */
#ifdef ELF_64BIT
#define AROS_ELF_CLASS ELFCLASS64
#else
#define AROS_ELF_CLASS ELFCLASS32
#endif
#if AROS_BIG_ENDIAN
#define AROS_ELF_DATA ELFDATA2MSB
#else
#define AROS_ELF_DATA ELFDATA2LSB
#endif
#if defined(__i386__) || defined(__x86_64__)
#ifdef ELF_64BIT
#define AROS_ELF_MACHINE EM_X86_64
#define AROS_ELF_REL SHT_RELA
#define relo rela
#else
#define AROS_ELF_MACHINE EM_386
#define AROS_ELF_REL SHT_REL
#define relo rel
#endif
#endif
#ifdef __mc68000__
#define AROS_ELF_MACHINE EM_68K
#define AROS_ELF_REL SHT_RELA
#define relo rela
#endif
#ifdef __powerpc__
#define AROS_ELF_MACHINE EM_PPC
#define AROS_ELF_REL SHT_RELA
#define relo rela
#endif
#ifdef __arm__
#define AROS_ELF_MACHINE EM_ARM
#define AROS_ELF_REL SHT_RELA
#define relo rela
#endif
#endif
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