libc/include/elf.h - platform/bionic - Git at Google


            
            /*

            
             * Copyright (C) 2008 The Android Open Source Project

            
             * All rights reserved.

            
             *

            
             * Redistribution and use in source and binary forms, with or without

            
             * modification, are permitted provided that the following conditions

            
             * are met:

            
             *  * Redistributions of source code must retain the above copyright

            
             *    notice, this list of conditions and the following disclaimer.

            
             *  * 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.

            
             *

            
             * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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

            
             * COPYRIGHT OWNER 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.

            
             */


            #pragma once


            #include <sys/cdefs.h>


            #include <linux/elf.h>

            
            #include <linux/elf-em.h>

            
            #undef EI_PAD


            #include <bits/auxvec.h>

            
            #include <bits/elf_common.h>


            __BEGIN_DECLS


            /* http://www.sco.com/developers/gabi/latest/ch4.intro.html */

            
            typedef __u64 Elf32_Xword;

            
            typedef __s64 Elf32_Sxword;


            typedef struct {

            
              __u32 a_type;

            
              union {

            
                __u32 a_val;

            
              } a_un;

            
            } Elf32_auxv_t;


            typedef struct {

            
              __u64 a_type;

            
              union {

            
                __u64 a_val;

            
              } a_un;

            
            } Elf64_auxv_t;


            /* http://www.sco.com/developers/gabi/latest/ch4.sheader.html */

            
            typedef struct {

            
              Elf32_Word ch_type;

            
              Elf32_Word ch_size;

            
              Elf32_Word ch_addralign;

            
            } Elf32_Chdr;

            
            typedef struct {

            
              Elf64_Word ch_type;

            
              Elf64_Word ch_reserved;

            
              Elf64_Xword ch_size;

            
              Elf64_Xword ch_addralign;

            
            } Elf64_Chdr;


            typedef struct {

            
              Elf32_Word l_name;

            
              Elf32_Word l_time_stamp;

            
              Elf32_Word l_checksum;

            
              Elf32_Word l_version;

            
              Elf32_Word l_flags;

            
            } Elf32_Lib;

            
            typedef struct {

            
              Elf64_Word l_name;

            
              Elf64_Word l_time_stamp;

            
              Elf64_Word l_checksum;

            
              Elf64_Word l_version;

            
              Elf64_Word l_flags;

            
            } Elf64_Lib;


            typedef struct {

            
              Elf32_Xword m_value;

            
              Elf32_Word m_info;

            
              Elf32_Word m_poffset;

            
              Elf32_Half m_repeat;

            
              Elf32_Half m_stride;

            
            } Elf32_Move;

            
            typedef struct {

            
              Elf64_Xword m_value;

            
              Elf64_Xword m_info;

            
              Elf64_Xword m_poffset;

            
              Elf64_Half m_repeat;

            
              Elf64_Half m_stride;

            
            } Elf64_Move;


            typedef __u16 Elf32_Section;

            
            typedef __u16 Elf64_Section;


            typedef struct {

            
              Elf32_Half si_boundto;

            
              Elf32_Half si_flags;

            
            } Elf32_Syminfo;

            
            typedef struct {

            
              Elf64_Half si_boundto;

            
              Elf64_Half si_flags;

            
            } Elf64_Syminfo;


            typedef struct {

            
              Elf32_Half vn_version;

            
              Elf32_Half vn_cnt;

            
              Elf32_Word vn_file;

            
              Elf32_Word vn_aux;

            
              Elf32_Word vn_next;

            
            } Elf32_Verneed;


            typedef struct {

            
              Elf32_Word vna_hash;

            
              Elf32_Half vna_flags;

            
              Elf32_Half vna_other;

            
              Elf32_Word vna_name;

            
              Elf32_Word vna_next;

            
            } Elf32_Vernaux;


            typedef struct {

            
              Elf64_Half vn_version;

            
              Elf64_Half vn_cnt;

            
              Elf64_Word vn_file;

            
              Elf64_Word vn_aux;

            
              Elf64_Word vn_next;

            
            } Elf64_Verneed;


            typedef struct {

            
              Elf64_Word vna_hash;

            
              Elf64_Half vna_flags;

            
              Elf64_Half vna_other;

            
              Elf64_Word vna_name;

            
              Elf64_Word vna_next;

            
            } Elf64_Vernaux;


            /* Relocation table entry for relative (in section of type SHT_RELR). */

            
            typedef Elf32_Word Elf32_Relr;

            
            typedef Elf64_Xword Elf64_Relr;


            /* http://www.sco.com/developers/gabi/latest/ch5.dynamic.html */


            #define DF_1_NOW        0x00000001 /* Perform complete relocation processing. */

            
            #define DF_1_GROUP      0x00000004

            
            #define DF_1_INITFIRST  0x00000020

            
            #define DF_1_DIRECT     0x00000100

            
            #define DF_1_TRANS      0x00000200

            
            #define DF_1_NODUMP     0x00001000 /* Object cannot be dumped with dldump(3) */

            
            #define DF_1_CONFALT    0x00002000

            
            #define DF_1_ENDFILTEE  0x00004000

            
            #define DF_1_DISPRELDNE 0x00008000

            
            #define DF_1_DISPRELPND 0x00010000

            
            #define DF_1_NODIRECT   0x00020000

            
            #define DF_1_IGNMULDEF  0x00040000 /* Internal use */

            
            #define DF_1_NOKSYMS    0x00080000 /* Internal use */

            
            #define DF_1_NOHDR      0x00100000 /* Internal use */

            
            #define DF_1_EDITED     0x00200000

            
            #define DF_1_NORELOC    0x00400000 /* Internal use */

            
            #define DF_1_SYMINTPOSE 0x00800000

            
            #define DF_1_GLOBAUDIT  0x01000000

            
            #define DF_1_SINGLETON  0x02000000

            
            #define DF_1_STUB       0x04000000


            /* http://www.sco.com/developers/gabi/latest/ch4.reloc.html */

            
            #define ELF32_R_INFO(sym, type) ((((Elf32_Word)sym) << 8) | ((type) & 0xff))

            
            #define ELF64_R_INFO(sym, type) ((((Elf64_Xword)sym) << 32) | ((type) & 0xffffffff))


            /* http://www.sco.com/developers/gabi/latest/ch4.symtab.html */

            
            #define ELF_ST_INFO(b,t) (((b) << 4) + ((t) & 0xf))

            
            #define ELF32_ST_INFO(b,t) ELF_ST_INFO(b,t)

            
            #define ELF64_ST_INFO(b,t) ELF_ST_INFO(b,t)


            /* http://www.sco.com/developers/gabi/latest/ch4.sheader.html */

            
            #define GRP_MASKOS   0x0ff00000

            
            #define GRP_MASKPROC 0xf0000000


            /* http://www.sco.com/developers/gabi/latest/ch4.sheader.html */

            
            /*

            
             * Standard replacement for SHT_ANDROID_RELR.

            
             */

            
            #define SHT_RELR 19

            
            #undef SHT_NUM

            
            #define SHT_NUM 20


            /*

            
             * Experimental support for SHT_RELR sections. For details, see proposal

            
             * at https://groups.google.com/forum/#!topic/generic-abi/bX460iggiKg.

            
             *

            
             * This was eventually replaced by SHT_RELR and DT_RELR (which are identical

            
             * other than their different constants), but those constants are only

            
             * supported by the OS in API levels >= 30.

            
             */

            
            #define SHT_ANDROID_RELR 0x6fffff00

            
            #define DT_ANDROID_RELR 0x6fffe000

            
            #define DT_ANDROID_RELRSZ 0x6fffe001

            
            #define DT_ANDROID_RELRENT 0x6fffe003

            
            #define DT_ANDROID_RELRCOUNT 0x6fffe005


            /*

            
             * Android compressed REL/RELA sections. These were generated by the relocation

            
             * packer in old versions of Android, and can be generated directly by lld

            
             * with https://reviews.llvm.org/D39152.

            
             *

            
             * This was replaced by SHT_ANDROID_RELR in API level 28 (but is supported

            
             * in all API levels >= 23).

            
             */

            
            #define SHT_ANDROID_REL 0x60000001

            
            #define SHT_ANDROID_RELA 0x60000002

            
            #define DT_ANDROID_REL 0x6000000f // DT_LOOS + 2

            
            #define DT_ANDROID_RELSZ 0x60000010 // DT_LOOS + 3

            
            #define DT_ANDROID_RELA 0x60000011 // DT_LOOS + 4

            
            #define DT_ANDROID_RELASZ 0x60000012 // DT_LOOS + 5


            /* arm64 psabi. */


            /* TODO: upstreamed to FreeBSD as https://github.com/freebsd/freebsd-src/pull/1141/. */

            
            #define DT_AARCH64_MEMTAG_MODE 0x70000009

            
            #define DT_AARCH64_MEMTAG_HEAP 0x7000000b

            
            #define DT_AARCH64_MEMTAG_STACK 0x7000000c

            
            #define DT_AARCH64_MEMTAG_GLOBALS 0x7000000d

            
            #define DT_AARCH64_MEMTAG_GLOBALSSZ 0x7000000f


            /* Linux traditionally doesn't have the trailing 64 that BSD has on these. */

            
            #define R_AARCH64_TLS_DTPREL R_AARCH64_TLS_DTPREL64

            
            #define R_AARCH64_TLS_DTPMOD R_AARCH64_TLS_DTPMOD64

            
            #define R_AARCH64_TLS_TPREL R_AARCH64_TLS_TPREL64


            /* TODO: upstream these to FreeBSD? */

            
            #define R_ARM_TLS_DESC 13

            
            #define R_ARM_IRELATIVE 160


            /* riscv64 psabi. */


            /*

            
             * https://github.com/riscv-non-isa/riscv-elf-psabi-doc/blob/master/riscv-elf.adoc#relocations

            
             * Missing from FreeBSD and the Linux uapi headers.

            
             * TODO: upstreamed to FreeBSD as https://github.com/freebsd/freebsd-src/pull/1141.

            
             */

            
            #define R_RISCV_TLSDESC 12

            
            #define R_RISCV_TLSDESC_HI20 62

            
            #define R_RISCV_TLSDESC_LOAD_LO12 63

            
            #define R_RISCV_TLSDESC_ADD_LO12 64

            
            #define R_RISCV_TLSDESC_CALL 65


            /* https://github.com/riscv-non-isa/riscv-elf-psabi-doc/blob/master/riscv-elf.adoc#program-header-table */

            
            #define PT_RISCV_ATTRIBUTES 0x70000003


            /* https://github.com/riscv-non-isa/riscv-elf-psabi-doc/blob/master/riscv-elf.adoc#section-types */

            
            #define SHT_RISCV_ATTRIBUTES 0x70000003


            /* FreeBSD spells this slightly differently to Linux. Linux is correct according to

            
             * https://github.com/riscv-non-isa/riscv-elf-psabi-doc/blob/master/riscv-elf.adoc#file-header

            
             * so I've sent https://github.com/freebsd/freebsd-src/pull/1148 upstream.

            
             */

            
            #define EF_RISCV_FLOAT_ABI EF_RISCV_FLOAT_ABI_MASK


            /* FreeBSD spells this slightly differently to Linux. */

            
            #define R_X86_64_JUMP_SLOT R_X86_64_JMP_SLOT


            __END_DECLS
	/*
	* Copyright (C) 2008 The Android Open Source Project
	* All rights reserved.
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions
	* are met:
	* * Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer.
	* * 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.
	*
	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
	* COPYRIGHT OWNER 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.
	*/

	#pragma once

	#include <sys/cdefs.h>

	#include <linux/elf.h>
	#include <linux/elf-em.h>
	#undef EI_PAD

	#include <bits/auxvec.h>
	#include <bits/elf_common.h>

	__BEGIN_DECLS

	/* http://www.sco.com/developers/gabi/latest/ch4.intro.html */
	typedef __u64 Elf32_Xword;
	typedef __s64 Elf32_Sxword;

	typedef struct {
	__u32 a_type;
	union {
	__u32 a_val;
	} a_un;
	} Elf32_auxv_t;

	typedef struct {
	__u64 a_type;
	union {
	__u64 a_val;
	} a_un;
	} Elf64_auxv_t;

	/* http://www.sco.com/developers/gabi/latest/ch4.sheader.html */
	typedef struct {
	Elf32_Word ch_type;
	Elf32_Word ch_size;
	Elf32_Word ch_addralign;
	} Elf32_Chdr;
	typedef struct {
	Elf64_Word ch_type;
	Elf64_Word ch_reserved;
	Elf64_Xword ch_size;
	Elf64_Xword ch_addralign;
	} Elf64_Chdr;

	typedef struct {
	Elf32_Word l_name;
	Elf32_Word l_time_stamp;
	Elf32_Word l_checksum;
	Elf32_Word l_version;
	Elf32_Word l_flags;
	} Elf32_Lib;
	typedef struct {
	Elf64_Word l_name;
	Elf64_Word l_time_stamp;
	Elf64_Word l_checksum;
	Elf64_Word l_version;
	Elf64_Word l_flags;
	} Elf64_Lib;

	typedef struct {
	Elf32_Xword m_value;
	Elf32_Word m_info;
	Elf32_Word m_poffset;
	Elf32_Half m_repeat;
	Elf32_Half m_stride;
	} Elf32_Move;
	typedef struct {
	Elf64_Xword m_value;
	Elf64_Xword m_info;
	Elf64_Xword m_poffset;
	Elf64_Half m_repeat;
	Elf64_Half m_stride;
	} Elf64_Move;

	typedef __u16 Elf32_Section;
	typedef __u16 Elf64_Section;

	typedef struct {
	Elf32_Half si_boundto;
	Elf32_Half si_flags;
	} Elf32_Syminfo;
	typedef struct {
	Elf64_Half si_boundto;
	Elf64_Half si_flags;
	} Elf64_Syminfo;

	typedef struct {
	Elf32_Half vn_version;
	Elf32_Half vn_cnt;
	Elf32_Word vn_file;
	Elf32_Word vn_aux;
	Elf32_Word vn_next;
	} Elf32_Verneed;

	typedef struct {
	Elf32_Word vna_hash;
	Elf32_Half vna_flags;
	Elf32_Half vna_other;
	Elf32_Word vna_name;
	Elf32_Word vna_next;
	} Elf32_Vernaux;

	typedef struct {
	Elf64_Half vn_version;
	Elf64_Half vn_cnt;
	Elf64_Word vn_file;
	Elf64_Word vn_aux;
	Elf64_Word vn_next;
	} Elf64_Verneed;

	typedef struct {
	Elf64_Word vna_hash;
	Elf64_Half vna_flags;
	Elf64_Half vna_other;
	Elf64_Word vna_name;
	Elf64_Word vna_next;
	} Elf64_Vernaux;

	/* Relocation table entry for relative (in section of type SHT_RELR). */
	typedef Elf32_Word Elf32_Relr;
	typedef Elf64_Xword Elf64_Relr;

	/* http://www.sco.com/developers/gabi/latest/ch5.dynamic.html */

	#define DF_1_NOW 0x00000001 /* Perform complete relocation processing. */
	#define DF_1_GROUP 0x00000004
	#define DF_1_INITFIRST 0x00000020
	#define DF_1_DIRECT 0x00000100
	#define DF_1_TRANS 0x00000200
	#define DF_1_NODUMP 0x00001000 /* Object cannot be dumped with dldump(3) */
	#define DF_1_CONFALT 0x00002000
	#define DF_1_ENDFILTEE 0x00004000
	#define DF_1_DISPRELDNE 0x00008000
	#define DF_1_DISPRELPND 0x00010000
	#define DF_1_NODIRECT 0x00020000
	#define DF_1_IGNMULDEF 0x00040000 /* Internal use */
	#define DF_1_NOKSYMS 0x00080000 /* Internal use */
	#define DF_1_NOHDR 0x00100000 /* Internal use */
	#define DF_1_EDITED 0x00200000
	#define DF_1_NORELOC 0x00400000 /* Internal use */
	#define DF_1_SYMINTPOSE 0x00800000
	#define DF_1_GLOBAUDIT 0x01000000
	#define DF_1_SINGLETON 0x02000000
	#define DF_1_STUB 0x04000000

	/* http://www.sco.com/developers/gabi/latest/ch4.reloc.html */
	#define ELF32_R_INFO(sym, type) ((((Elf32_Word)sym) << 8) \| ((type) & 0xff))
	#define ELF64_R_INFO(sym, type) ((((Elf64_Xword)sym) << 32) \| ((type) & 0xffffffff))

	/* http://www.sco.com/developers/gabi/latest/ch4.symtab.html */
	#define ELF_ST_INFO(b,t) (((b) << 4) + ((t) & 0xf))
	#define ELF32_ST_INFO(b,t) ELF_ST_INFO(b,t)
	#define ELF64_ST_INFO(b,t) ELF_ST_INFO(b,t)

	/* http://www.sco.com/developers/gabi/latest/ch4.sheader.html */
	#define GRP_MASKOS 0x0ff00000
	#define GRP_MASKPROC 0xf0000000

	/* http://www.sco.com/developers/gabi/latest/ch4.sheader.html */
	/*
	* Standard replacement for SHT_ANDROID_RELR.
	*/
	#define SHT_RELR 19
	#undef SHT_NUM
	#define SHT_NUM 20

	/*
	* Experimental support for SHT_RELR sections. For details, see proposal
	* at https://groups.google.com/forum/#!topic/generic-abi/bX460iggiKg.
	*
	* This was eventually replaced by SHT_RELR and DT_RELR (which are identical
	* other than their different constants), but those constants are only
	* supported by the OS in API levels >= 30.
	*/
	#define SHT_ANDROID_RELR 0x6fffff00
	#define DT_ANDROID_RELR 0x6fffe000
	#define DT_ANDROID_RELRSZ 0x6fffe001
	#define DT_ANDROID_RELRENT 0x6fffe003
	#define DT_ANDROID_RELRCOUNT 0x6fffe005

	/*
	* Android compressed REL/RELA sections. These were generated by the relocation
	* packer in old versions of Android, and can be generated directly by lld
	* with https://reviews.llvm.org/D39152.
	*
	* This was replaced by SHT_ANDROID_RELR in API level 28 (but is supported
	* in all API levels >= 23).
	*/
	#define SHT_ANDROID_REL 0x60000001
	#define SHT_ANDROID_RELA 0x60000002
	#define DT_ANDROID_REL 0x6000000f // DT_LOOS + 2
	#define DT_ANDROID_RELSZ 0x60000010 // DT_LOOS + 3
	#define DT_ANDROID_RELA 0x60000011 // DT_LOOS + 4
	#define DT_ANDROID_RELASZ 0x60000012 // DT_LOOS + 5

	/* arm64 psabi. */

	/* TODO: upstreamed to FreeBSD as https://github.com/freebsd/freebsd-src/pull/1141/. */
	#define DT_AARCH64_MEMTAG_MODE 0x70000009
	#define DT_AARCH64_MEMTAG_HEAP 0x7000000b
	#define DT_AARCH64_MEMTAG_STACK 0x7000000c
	#define DT_AARCH64_MEMTAG_GLOBALS 0x7000000d
	#define DT_AARCH64_MEMTAG_GLOBALSSZ 0x7000000f

	/* Linux traditionally doesn't have the trailing 64 that BSD has on these. */
	#define R_AARCH64_TLS_DTPREL R_AARCH64_TLS_DTPREL64
	#define R_AARCH64_TLS_DTPMOD R_AARCH64_TLS_DTPMOD64
	#define R_AARCH64_TLS_TPREL R_AARCH64_TLS_TPREL64

	/* TODO: upstream these to FreeBSD? */
	#define R_ARM_TLS_DESC 13
	#define R_ARM_IRELATIVE 160

	/* riscv64 psabi. */

	/*
	* https://github.com/riscv-non-isa/riscv-elf-psabi-doc/blob/master/riscv-elf.adoc#relocations
	* Missing from FreeBSD and the Linux uapi headers.
	* TODO: upstreamed to FreeBSD as https://github.com/freebsd/freebsd-src/pull/1141.
	*/
	#define R_RISCV_TLSDESC 12
	#define R_RISCV_TLSDESC_HI20 62
	#define R_RISCV_TLSDESC_LOAD_LO12 63
	#define R_RISCV_TLSDESC_ADD_LO12 64
	#define R_RISCV_TLSDESC_CALL 65

	/* https://github.com/riscv-non-isa/riscv-elf-psabi-doc/blob/master/riscv-elf.adoc#program-header-table */
	#define PT_RISCV_ATTRIBUTES 0x70000003

	/* https://github.com/riscv-non-isa/riscv-elf-psabi-doc/blob/master/riscv-elf.adoc#section-types */
	#define SHT_RISCV_ATTRIBUTES 0x70000003

	/* FreeBSD spells this slightly differently to Linux. Linux is correct according to
	* https://github.com/riscv-non-isa/riscv-elf-psabi-doc/blob/master/riscv-elf.adoc#file-header
	* so I've sent https://github.com/freebsd/freebsd-src/pull/1148 upstream.
	*/
	#define EF_RISCV_FLOAT_ABI EF_RISCV_FLOAT_ABI_MASK

	/* FreeBSD spells this slightly differently to Linux. */
	#define R_X86_64_JUMP_SLOT R_X86_64_JMP_SLOT

	__END_DECLS