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