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upx/src/p_elf_enum.h
Markus F.X.J. Oberhumer d001a63bce Welcome 2022.
2022-09-04 04:24:39 +02:00

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/* p_elf_enum.h --
This file is part of the UPX executable compressor.
Copyright (C) 1996-2022 Markus Franz Xaver Johannes Oberhumer
Copyright (C) 1996-2022 Laszlo Molnar
All Rights Reserved.
UPX and the UCL library are free software; you can redistribute them
and/or modify them under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of
the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
Markus F.X.J. Oberhumer Laszlo Molnar
<markus@oberhumer.com> <ezerotven+github@gmail.com>
*/
/*************************************************************************
// Use the preprocessor to work around
// - that the types embedding these enums have to be PODs, and
// deriving from an empty base class (which is the usual C++ way
// of "importing" enums) does not yield a POD any more
// - that older compilers do not correctly perform EBCO
**************************************************************************/
#ifdef WANT_EHDR_ENUM
#undef WANT_EHDR_ENUM
enum { // e_ident[]
EI_CLASS = 4,
EI_DATA = 5, /* Data encoding */
EI_VERSION = 6,
EI_OSABI = 7,
EI_ABIVERSION = 8
};
enum { // e_ident[EI_CLASS]
ELFCLASS32 = 1, /* 32-bit objects */
ELFCLASS64 = 2 /* 64-bit objects */
};
enum { // e_ident[EI_DATA]
ELFDATA2LSB = 1, /* 2's complement, little endian */
ELFDATA2MSB = 2 /* 2's complement, big endian */
};
enum { // e_ident[EI_OSABI]
ELFOSABI_NONE = 0, // == ELFOSABI_SYSV
ELFOSABI_NETBSD = 2,
ELFOSABI_LINUX = 3,
ELFOSABI_FREEBSD = 9,
ELFOSABI_OPENBSD = 12,
ELFOSABI_ARM = 97
};
enum { // e_type
ET_NONE = 0, /* No file type */
ET_REL = 1, /* Relocatable file */
ET_EXEC = 2, /* Executable file */
ET_DYN = 3, /* Shared object file */
ET_CORE = 4 /* Core file */
};
enum { // e_machine
EM_386 = 3,
EM_MIPS = 8,
EM_MIPS_RS3_LE = 10, /* MIPS R3000 little-endian */
EM_PPC = 20,
EM_PPC64 = 21,
EM_ARM = 40,
EM_X86_64 = 62,
EM_AARCH64 = 183
};
enum { // e_version
EV_CURRENT = 1
};
#endif
#ifdef WANT_PHDR_ENUM
#undef WANT_PHDR_ENUM
enum { // p_type
PT_NULL = 0, /* Ingore: a "comment" */
PT_LOAD = 1, /* Loadable program segment */
PT_DYNAMIC = 2, /* Dynamic linking information */
PT_INTERP = 3, /* Name of program interpreter */
PT_NOTE = 4, /* Auxiliary information (esp. OpenBSD) */
PT_PHDR = 6 /* Entry for header table itself */
, PT_NUM = 8 /* Number of defined types in low range */
, PT_GNU_STACK = 0x6474e551 /* Indicates stack executability */
};
enum { // p_flags
PF_X = 1, /* Segment is executable */
PF_W = 2, /* Segment is writable */
PF_R = 4 /* Segment is readable */
};
#endif
#ifdef WANT_SHDR_ENUM
#undef WANT_SHDR_ENUM
enum { // sh_type
SHT_NULL = 0, /* Section header table entry unused */
SHT_PROGBITS = 1, /* Program data */
SHT_SYMTAB = 2, /* Symbol table */
SHT_STRTAB = 3, /* String table */
SHT_RELA = 4, /* Relocation entries with addends */
SHT_HASH = 5, /* Symbol hash table */
SHT_DYNAMIC = 6, /* Dynamic linking information */
SHT_NOTE = 7, /* Notes */
SHT_NOBITS = 8, /* Program space with no data (bss) */
SHT_REL = 9, /* Relocation entries, no addends */
SHT_SHLIB = 10, /* Reserved */
SHT_DYNSYM = 11, /* Dynamic linker symbol table */
/* 12, 13 hole */
SHT_INIT_ARRAY = 14, /* Array of constructors */
SHT_FINI_ARRAY = 15, /* Array of destructors */
SHT_PREINIT_ARRAY = 16, /* Array of pre-constructors */
SHT_GROUP = 17, /* Section group */
SHT_SYMTAB_SHNDX = 18, /* Extended section indeces */
SHT_GNU_LIBLIST = 0x6ffffff7 /* Prelink library list */
, SHT_GNU_HASH = 0x6ffffff6 /* GNU-style hash table. */
, SHT_LOOS = 0x60000000 /* LOcal OS; SHT_ANDROID_REL{,A} is +1, +2 */
, SHT_LOPROC = 0x70000000/* Start of processor-specific */
, SHT_ARM_ATTRIBUTES = (SHT_LOPROC + 3) /* ARM attributes section. */
};
enum { // sh_flags
SHF_WRITE = (1 << 0), /* Writable */
SHF_ALLOC = (1 << 1), /* Occupies memory during execution */
SHF_EXECINSTR = (1 << 2), /* Executable */
SHF_MERGE = (1 << 4), /* Might be merged */
SHF_STRINGS = (1 << 5), /* Contains nul-terminated strings */
SHF_INFO_LINK = (1 << 6), /* 'sh_info' contains SHT index */
SHF_LINK_ORDER = (1 << 7) /* Preserve order after combining */
};
#endif
#ifdef WANT_DYN_ENUM
#undef WANT_DYN_ENUM
enum { // d_tag
DT_NULL = 0, /* End flag */
DT_NEEDED = 1, /* Name of needed library */
DT_PLTRELSZ = 2, /* Size in bytes of PLT relocs */
DT_PLTGOT = 3, /* Processor defined value */
DT_HASH = 4, /* Hash table of symbol names */
DT_STRTAB = 5, /* String table */
DT_SYMTAB = 6, /* Symbol table */
DT_RELA = 7, /* Relocations which do contain an addend */
DT_RELASZ = 8, /* Total size of Rela relocs */
DT_RELAENT = 9, /* Size of one RELA relocation */
DT_STRSZ = 10, /* Size of string table */
DT_SYMENT = 11, /* Size of one symbol table entry */
DT_INIT = 12, /* Address of init function */
DT_FINI = 13, /* Address of termination function */
DT_REL = 17, /* Relocations which contain no addend */
DT_RELSZ = 18, /* Total size of Rel relocs */
DT_RELENT = 19, /* Size of one Rel relocation */
DT_PLTREL = 20, /* Type of reloc in PLT */
DT_TEXTREL = 22, /* Reloc might modify .text */
DT_JMPREL = 23, /* Address of PLT relocs */
DT_INIT_ARRAY = 25, /* Array with addresses of init fct */
DT_FINI_ARRAY = 26, /* Array with addresses of fini fct */
DT_INIT_ARRAYSZ= 27, /* size in bytes */
DT_FINI_ARRAYSZ= 28, /* size in bytes */
DT_PREINIT_ARRAY = 32, /* Array with addresses of preinit fct*/
DT_PREINIT_ARRAYSZ= 33, /* size in bytes */
DT_NUM = 35, /* end of easy range */
DT_CHECKSUM = 0x6ffffdf8, /* Only for prelink? */
DT_GNU_HASH = 0x6ffffef5, /* GNU-style hash table */
DT_VERSYM = 0x6ffffff0, /* version[] for each symbol */
DT_FLAGS_1 = 0x6ffffffb, /* DF_1_* */
DT_VERDEF = 0x6ffffffc, /* version definitions[] */
DT_VERNEED = 0x6ffffffe /* version[] needed */
};
enum { // DT_FLAGS_1
DF_1_NOW = 0x00000001, /* Set RTLD_NOW for this object. */
DF_1_PIE = 0x08000000 // Position-Independent Executable (main program)
};
#endif
#ifdef WANT_SYM_ENUM
#undef WANT_SYM_ENUM
enum { // st_bind (high 4 bits of st_info)
STB_LOCAL = 0, /* Local symbol */
STB_GLOBAL = 1, /* Global symbol */
STB_WEAK = 2 /* Weak symbol */
};
enum { // st_type (low 4 bits of st_info)
STT_NOTYPE = 0, /* Symbol type is unspecified */
STT_OBJECT = 1, /* Symbol is a data object */
STT_FUNC = 2, /* Symbol is a code object */
STT_SECTION = 3, /* Symbol associated with a section */
STT_FILE = 4, /* Symbol's name is file name */
STT_COMMON = 5, /* Symbol is a common data object */
STT_TLS = 6 /* Symbol is thread-local data object*/
};
enum { // st_other (visibility)
STV_DEFAULT = 0, /* Default symbol visibility rules */
STV_INTERNAL = 1, /* Processor specific hidden class */
STV_HIDDEN = 2, /* Sym unavailable in other modules */
STV_PROTECTED= 3 /* Not preemptible, not exported */
};
enum { // st_shndx
SHN_UNDEF = 0, /* Undefined section */
SHN_ABS = 0xfff1, /* Associated symbol is absolute */
SHN_COMMON = 0xfff2 /* Associated symbol is common */
};
#endif
#ifdef WANT_REL_ENUM //{
#undef WANT_REL_ENUM
static inline unsigned ELF32_R_TYPE(unsigned x) { return 0xff & x; }
static inline unsigned ELF64_R_TYPE(upx_uint64_t x) { return 0xffffffff & (unsigned)x; }
# undef R_PPC_RELATIVE
# undef R_PPC64_RELATIVE
# undef R_PPC_JMP_SLOT
# undef R_PPC64_JMP_SLOT
enum { // relocation types
R_386_RELATIVE = 8,
R_AARCH64_RELATIVE = 1027,
R_ARM_RELATIVE = 23,
R_PPC_RELATIVE = 22,
R_PPC64_RELATIVE = R_PPC_RELATIVE,
R_X86_64_RELATIVE = 8,
R_386_JMP_SLOT = 7,
R_AARCH64_JUMP_SLOT = 1026,
R_ARM_JUMP_SLOT = 22,
R_PPC_JMP_SLOT = 21,
R_PPC64_JMP_SLOT = R_PPC_JMP_SLOT,
R_X86_64_JUMP_SLOT = 7
, R_ARM_ABS32 = 2
, R_ARM_GLOB_DAT = 21
, R_AARCH64_ABS64 = 257
, R_AARCH64_GLOB_DAT = 1025
};
#endif //}
#ifdef WANT_NHDR_ENUM
#undef WANT_NHDR_ENUM
enum { // ELF PT_NOTE types
#define ELF_NOTE_GNU_NAME "GNU\0"
NT_GNU_ABI_TAG = 1,
NT_GNU_HWCAP = 2,
NT_GNU_BUILD_ID = 3,
#define ELF_NOTE_OPENBSD_NAME "OpenBSD\0"
NHDR_OPENBSD_TAG = 1,
#define ELF_NOTE_NETBSD_NAME "NetBSD\0"
NHDR_NETBSD_TAG = 1,
NHDR_CHECKSUM_TAG = 2,
NHDR_PAX_TAG = 3
};
enum { // descsz descriptor sizes
GNU_ABI_DESCSZ = 16, // int GNU_OS, major, minor, subminor;
NETBSD_DESCSZ = 4, // major_ver * (10**8) + minor
OPENBSD_DESCSZ = 4, // 32-bit zero
// CHECKSUM_DESCSZ is 2*sizeof(short) + sizeof(checksum)
PAX_DESCSZ = 4 // 32-bit mask
};
enum { // GNU OS/version
GNU_OS_LINUX = 0,
GNU_OS_HURD = 1,
GNU_OS_SOLARIS = 2
};
enum { // NetBSD checksum methods
CHECKSUM_CRC32 = 1,
CHECKSUM_MD5 = 2,
CHECKSUM_SHA1 = 3,
CHECKSUM_SHA256 = 4
};
#define ELF_NOTE_PAX_NAME "PaX\0"
enum { // NetBSD PaX bit values
PAX_MPROTECT = (1<<0), /* force enable Mprotect */
PAX_NOMPROTECT = (1<<1), /* force disable Mprotect */
PAX_GUARD = (1<<2), /* force enable SEGVguard */
PAX_NOGUARD = (1<<3), /* force disable SEGVguard */
PAX_ASLR = (1<<4), /* force enable ASLR */
PAX_NOASLR = (1<<5) /* force disable ASLR */
};
#endif
/* vim:set ts=4 sw=4 et: */
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