Mini Shell
/* Accumulation of various pieces of knowledge about ELF.
Copyright (C) 2000-2012, 2014, 2016 Red Hat, Inc.
This file is part of elfutils.
Written by Ulrich Drepper <drepper@redhat.com>, 2000.
This file is free software; you can redistribute it and/or modify
it under the terms of either
* the GNU Lesser General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at
your option) any later version
or
* 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
or both in parallel, as here.
elfutils 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 copies of the GNU General Public License and
the GNU Lesser General Public License along with this program. If
not, see <http://www.gnu.org/licenses/>. */
#ifndef _ELF_KNOWLEDGE_H
#define _ELF_KNOWLEDGE_H 1
#include <stdbool.h>
/* Test whether a section can be stripped or not. */
#define SECTION_STRIP_P(shdr, name, remove_comment) \
/* Sections which are allocated are not removed. */ \
(((shdr)->sh_flags & SHF_ALLOC) == 0 \
/* We never remove .note sections. */ \
&& (shdr)->sh_type != SHT_NOTE \
&& (((shdr)->sh_type) != SHT_PROGBITS \
/* Never remove .gnu.warning.* sections. */ \
|| (name != NULL \
&& strncmp (name, ".gnu.warning.", sizeof ".gnu.warning." - 1) != 0\
/* We remove .comment sections only if explicitly told to do so. */\
&& (remove_comment \
|| strcmp (name, ".comment") != 0))))
/* Test whether `sh_info' field in section header contains a section
index. There are two kinds of sections doing this:
- the sections containing relocation information reference in this
field the section to which the relocations apply;
- section with the SHF_INFO_LINK flag set to signal that `sh_info'
references a section. This allows correct handling of unknown
sections. */
#define SH_INFO_LINK_P(Shdr) \
((Shdr)->sh_type == SHT_REL || (Shdr)->sh_type == SHT_RELA \
|| ((Shdr)->sh_flags & SHF_INFO_LINK) != 0)
/* Size of an entry in the hash table. The ELF specification says all
entries are regardless of platform 32-bits in size. Early 64-bit
ports (namely Alpha for Linux) got this wrong. The wording was not
clear.
Several years later the ABI for the 64-bit S390s was developed.
Many things were copied from the IA-64 ABI (which uses the correct
32-bit entry size) but it does get the SHT_HASH entry size wrong by
using a 64-bit entry size. So now we need this macro to special
case both the alpha and s390x ABIs. */
#define SH_ENTSIZE_HASH(Ehdr) \
((Ehdr)->e_machine == EM_ALPHA \
|| ((Ehdr)->e_machine == EM_S390 \
&& (Ehdr)->e_ident[EI_CLASS] == ELFCLASS64) ? 8 : 4)
/* GNU Annobin notes are not fully standardized and abuses the owner name. */
#define ELF_NOTE_GNU_BUILD_ATTRIBUTE_PREFIX "GA"
#define NT_GNU_BUILD_ATTRIBUTE_OPEN 0x100
#define NT_GNU_BUILD_ATTRIBUTE_FUNC 0x101
#define GNU_BUILD_ATTRIBUTE_TYPE_NUMERIC '*'
#define GNU_BUILD_ATTRIBUTE_TYPE_STRING '$'
#define GNU_BUILD_ATTRIBUTE_TYPE_BOOL_TRUE '+'
#define GNU_BUILD_ATTRIBUTE_TYPE_BOOL_FALSE '!'
#define GNU_BUILD_ATTRIBUTE_VERSION 1
#define GNU_BUILD_ATTRIBUTE_STACK_PROT 2
#define GNU_BUILD_ATTRIBUTE_RELRO 3
#define GNU_BUILD_ATTRIBUTE_STACK_SIZE 4
#define GNU_BUILD_ATTRIBUTE_TOOL 5
#define GNU_BUILD_ATTRIBUTE_ABI 6
#define GNU_BUILD_ATTRIBUTE_PIC 7
#define GNU_BUILD_ATTRIBUTE_SHORT_ENUM 8
/* Hexagon specific declarations. */
/* Processor specific flags for the Ehdr e_flags field. */
#define EF_HEXAGON_MACH_V2 0x00000001 /* Hexagon V2 */
#define EF_HEXAGON_MACH_V3 0x00000002 /* Hexagon V3 */
#define EF_HEXAGON_MACH_V4 0x00000003 /* Hexagon V4 */
#define EF_HEXAGON_MACH_V5 0x00000004 /* Hexagon V5 */
#define EF_HEXAGON_MACH_V55 0x00000005 /* Hexagon V55 */
#define EF_HEXAGON_MACH_V60 0x00000060 /* Hexagon V60 */
#define EF_HEXAGON_MACH_V61 0x00000061 /* Hexagon V61 */
#define EF_HEXAGON_MACH_V62 0x00000062 /* Hexagon V62 */
#define EF_HEXAGON_MACH_V65 0x00000065 /* Hexagon V65 */
#define EF_HEXAGON_MACH_V66 0x00000066 /* Hexagon V66 */
#define EF_HEXAGON_MACH_V67 0x00000067 /* Hexagon V67 */
#define EF_HEXAGON_MACH_V67T 0x00008067 /* Hexagon V67T */
#define EF_HEXAGON_MACH_V68 0x00000068 /* Hexagon V68 */
#define EF_HEXAGON_MACH_V69 0x00000069 /* Hexagon V68 */
#define EF_HEXAGON_MACH_V71 0x00000071 /* Hexagon V71 */
#define EF_HEXAGON_MACH_V71T 0x00008071 /* Hexagon V71T */
#define EF_HEXAGON_MACH_V73 0x00000073 /* Hexagon V73 */
#define EF_HEXAGON_MACH 0x000003ff /* Hexagon V.. */
#define EF_HEXAGON_TINY 0x00008000 /* Hexagon V..T */
/* Special section indices. */
#define SHN_HEXAGON_SCOMMON 0xff00 /* Other access sizes */
#define SHN_HEXAGON_SCOMMON_1 0xff01 /* Byte-sized access */
#define SHN_HEXAGON_SCOMMON_2 0xff02 /* Half-word-sized access */
#define SHN_HEXAGON_SCOMMON_4 0xff03 /* Word-sized access */
#define SHN_HEXAGON_SCOMMON_8 0xff04 /* Double-word-size access */
/* Hexagon specific relocs. */
#define R_HEX_NONE 0
#define R_HEX_B22_PCREL 1
#define R_HEX_B15_PCREL 2
#define R_HEX_B7_PCREL 3
#define R_HEX_LO16 4
#define R_HEX_HI16 5
#define R_HEX_32 6
#define R_HEX_16 7
#define R_HEX_8 8
#define R_HEX_GPREL16_0 9
#define R_HEX_GPREL16_1 10
#define R_HEX_GPREL16_2 11
#define R_HEX_GPREL16_3 12
#define R_HEX_HL16 13
#define R_HEX_B13_PCREL 14
#define R_HEX_B9_PCREL 15
#define R_HEX_B32_PCREL_X 16
#define R_HEX_32_6_X 17
#define R_HEX_B22_PCREL_X 18
#define R_HEX_B15_PCREL_X 19
#define R_HEX_B13_PCREL_X 20
#define R_HEX_B9_PCREL_X 21
#define R_HEX_B7_PCREL_X 22
#define R_HEX_16_X 23
#define R_HEX_12_X 24
#define R_HEX_11_X 25
#define R_HEX_10_X 26
#define R_HEX_9_X 27
#define R_HEX_8_X 28
#define R_HEX_7_X 29
#define R_HEX_6_X 30
#define R_HEX_32_PCREL 31
#define R_HEX_COPY 32
#define R_HEX_GLOB_DAT 33
#define R_HEX_JMP_SLOT 34
#define R_HEX_RELATIVE 35
#define R_HEX_PLT_B22_PCREL 36
#define R_HEX_GOTREL_LO16 37
#define R_HEX_GOTREL_HI16 38
#define R_HEX_GOTREL_32 39
#define R_HEX_GOT_LO16 40
#define R_HEX_GOT_HI16 41
#define R_HEX_GOT_32 42
#define R_HEX_GOT_16 43
#define R_HEX_DTPMOD_32 44
#define R_HEX_DTPREL_LO16 45
#define R_HEX_DTPREL_HI16 46
#define R_HEX_DTPREL_32 47
#define R_HEX_DTPREL_16 48
#define R_HEX_GD_PLT_B22_PCREL 49
#define R_HEX_GD_GOT_LO16 50
#define R_HEX_GD_GOT_HI16 51
#define R_HEX_GD_GOT_32 52
#define R_HEX_GD_GOT_16 53
#define R_HEX_IE_LO16 54
#define R_HEX_IE_HI16 55
#define R_HEX_IE_32 56
#define R_HEX_IE_GOT_LO16 57
#define R_HEX_IE_GOT_HI16 58
#define R_HEX_IE_GOT_32 59
#define R_HEX_IE_GOT_16 60
#define R_HEX_TPREL_LO16 61
#define R_HEX_TPREL_HI16 62
#define R_HEX_TPREL_32 63
#define R_HEX_TPREL_16 64
#define R_HEX_6_PCREL_X 65
#define R_HEX_GOTREL_32_6_X 66
#define R_HEX_GOTREL_16_X 67
#define R_HEX_GOTREL_11_X 68
#define R_HEX_GOT_32_6_X 69
#define R_HEX_GOT_16_X 70
#define R_HEX_GOT_11_X 71
#define R_HEX_DTPREL_32_6_X 72
#define R_HEX_DTPREL_16_X 73
#define R_HEX_DTPREL_11_X 74
#define R_HEX_GD_GOT_32_6_X 75
#define R_HEX_GD_GOT_16_X 76
#define R_HEX_GD_GOT_11_X 77
#define R_HEX_IE_32_6_X 78
#define R_HEX_IE_16_X 79
#define R_HEX_IE_GOT_32_6_X 80
#define R_HEX_IE_GOT_16_X 81
#define R_HEX_IE_GOT_11_X 82
#define R_HEX_TPREL_32_6_X 83
#define R_HEX_TPREL_16_X 84
#define R_HEX_TPREL_11_X 85
#define R_HEX_LD_PLT_B22_PCREL 86
#define R_HEX_LD_GOT_LO16 87
#define R_HEX_LD_GOT_HI16 88
#define R_HEX_LD_GOT_32 89
#define R_HEX_LD_GOT_16 90
#define R_HEX_LD_GOT_32_6_X 91
#define R_HEX_LD_GOT_16_X 92
#define R_HEX_LD_GOT_11_X 93
#define R_HEX_23_REG 94
#define R_HEX_GD_PLT_B22_PCREL_X 95
#define R_HEX_GD_PLT_B32_PCREL_X 96
#define R_HEX_LD_PLT_B22_PCREL_X 97
#define R_HEX_LD_PLT_B32_PCREL_X 98
#define R_HEX_27_REG 99
#endif /* elf-knowledge.h */