11dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project/* 21dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * Copyright (C) 2008 The Android Open Source Project 31dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * All rights reserved. 41dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * 51dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * Redistribution and use in source and binary forms, with or without 61dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * modification, are permitted provided that the following conditions 71dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * are met: 81dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * * Redistributions of source code must retain the above copyright 91dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * notice, this list of conditions and the following disclaimer. 101dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * * Redistributions in binary form must reproduce the above copyright 111dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * notice, this list of conditions and the following disclaimer in 121dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * the documentation and/or other materials provided with the 131dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * distribution. 141dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * 151dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 161dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 171dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 181dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 191dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 201dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 211dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 221dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 231dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 241dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 251dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 261dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * SUCH DAMAGE. 271dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project */ 281dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 291dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#ifndef _LINKER_H_ 301dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#define _LINKER_H_ 311dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 324a2c5aa30ceea2aaf8dcaee2feb4879978af4fceDimitry Ivanov#include <dlfcn.h> 33afab3ffcce1054ec887fb347700819d69a9c8151Elliott Hughes#include <android/dlext.h> 349ec0f03a0d0b17bbb94ac0b9fef6add28a133c3aNick Kralevich#include <elf.h> 350d15094287fe0f288d9c258953143fc1998b6b5aDmitriy Ivanov#include <inttypes.h> 36b7beb6907599b36809effe1b4db76039ac649518Pavel Chupin#include <link.h> 37d59e50063ad708509f3ad83350be33f5612c4f54Dmitriy Ivanov#include <sys/stat.h> 38afab3ffcce1054ec887fb347700819d69a9c8151Elliott Hughes#include <unistd.h> 394688279db5dcc4004941e7f133c4a1c3617d842cElliott Hughes 40afab3ffcce1054ec887fb347700819d69a9c8151Elliott Hughes#include "private/bionic_page.h" 418f2a5a0b40fc82126c691d5c30131d908772aab7Elliott Hughes#include "private/libc_logging.h" 42d59e50063ad708509f3ad83350be33f5612c4f54Dmitriy Ivanov#include "linked_list.h" 43650be4e584eeab3591b9e273bfd6d169eea60853Elliott Hughes 44aae859cc3ca127d890e853cbf12b731e05624a22Dmitriy Ivanov#include <string> 452a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov#include <vector> 46aae859cc3ca127d890e853cbf12b731e05624a22Dmitriy Ivanov 47650be4e584eeab3591b9e273bfd6d169eea60853Elliott Hughes#define DL_ERR(fmt, x...) \ 48650be4e584eeab3591b9e273bfd6d169eea60853Elliott Hughes do { \ 49650be4e584eeab3591b9e273bfd6d169eea60853Elliott Hughes __libc_format_buffer(linker_get_error_buffer(), linker_get_error_buffer_size(), fmt, ##x); \ 50650be4e584eeab3591b9e273bfd6d169eea60853Elliott Hughes /* If LD_DEBUG is set high enough, log every dlerror(3) message. */ \ 51650be4e584eeab3591b9e273bfd6d169eea60853Elliott Hughes DEBUG("%s\n", linker_get_error_buffer()); \ 527e5a8cc5230dcc027686813e51a1b001cee4c602Elliott Hughes } while (false) 537e5a8cc5230dcc027686813e51a1b001cee4c602Elliott Hughes 547e5a8cc5230dcc027686813e51a1b001cee4c602Elliott Hughes#define DL_WARN(fmt, x...) \ 557e5a8cc5230dcc027686813e51a1b001cee4c602Elliott Hughes do { \ 567e5a8cc5230dcc027686813e51a1b001cee4c602Elliott Hughes __libc_format_log(ANDROID_LOG_WARN, "linker", fmt, ##x); \ 577e5a8cc5230dcc027686813e51a1b001cee4c602Elliott Hughes __libc_format_fd(2, "WARNING: linker: "); \ 587e5a8cc5230dcc027686813e51a1b001cee4c602Elliott Hughes __libc_format_fd(2, fmt, ##x); \ 597e5a8cc5230dcc027686813e51a1b001cee4c602Elliott Hughes __libc_format_fd(2, "\n"); \ 607e5a8cc5230dcc027686813e51a1b001cee4c602Elliott Hughes } while (false) 617e5a8cc5230dcc027686813e51a1b001cee4c602Elliott Hughes 620266ae5f884d72da58f33a072e865ba131234a5eElliott Hughes#if defined(__LP64__) 630266ae5f884d72da58f33a072e865ba131234a5eElliott Hughes#define ELFW(what) ELF64_ ## what 640266ae5f884d72da58f33a072e865ba131234a5eElliott Hughes#else 650266ae5f884d72da58f33a072e865ba131234a5eElliott Hughes#define ELFW(what) ELF32_ ## what 660266ae5f884d72da58f33a072e865ba131234a5eElliott Hughes#endif 67650be4e584eeab3591b9e273bfd6d169eea60853Elliott Hughes 689918665a45095ad135576f005c0e5307feb366a1Chris Dearman// mips64 interprets Elf64_Rel structures' r_info field differently. 699918665a45095ad135576f005c0e5307feb366a1Chris Dearman// bionic (like other C libraries) has macros that assume regular ELF files, 709918665a45095ad135576f005c0e5307feb366a1Chris Dearman// but the dynamic linker needs to be able to load mips64 ELF files. 719918665a45095ad135576f005c0e5307feb366a1Chris Dearman#if defined(__mips__) && defined(__LP64__) 729918665a45095ad135576f005c0e5307feb366a1Chris Dearman#undef ELF64_R_SYM 739918665a45095ad135576f005c0e5307feb366a1Chris Dearman#undef ELF64_R_TYPE 749918665a45095ad135576f005c0e5307feb366a1Chris Dearman#undef ELF64_R_INFO 759918665a45095ad135576f005c0e5307feb366a1Chris Dearman#define ELF64_R_SYM(info) (((info) >> 0) & 0xffffffff) 769918665a45095ad135576f005c0e5307feb366a1Chris Dearman#define ELF64_R_SSYM(info) (((info) >> 32) & 0xff) 779918665a45095ad135576f005c0e5307feb366a1Chris Dearman#define ELF64_R_TYPE3(info) (((info) >> 40) & 0xff) 789918665a45095ad135576f005c0e5307feb366a1Chris Dearman#define ELF64_R_TYPE2(info) (((info) >> 48) & 0xff) 799918665a45095ad135576f005c0e5307feb366a1Chris Dearman#define ELF64_R_TYPE(info) (((info) >> 56) & 0xff) 809918665a45095ad135576f005c0e5307feb366a1Chris Dearman#endif 819918665a45095ad135576f005c0e5307feb366a1Chris Dearman 82f45b0e9edee72e97106c4b3d393b9bf1582303b3Dimitry Ivanov#define FLAG_LINKED 0x00000001 83f45b0e9edee72e97106c4b3d393b9bf1582303b3Dimitry Ivanov#define FLAG_EXE 0x00000004 // The main executable 84f45b0e9edee72e97106c4b3d393b9bf1582303b3Dimitry Ivanov#define FLAG_LINKER 0x00000010 // The linker itself 85f45b0e9edee72e97106c4b3d393b9bf1582303b3Dimitry Ivanov#define FLAG_GNU_HASH 0x00000040 // uses gnu hash 86f45b0e9edee72e97106c4b3d393b9bf1582303b3Dimitry Ivanov#define FLAG_MAPPED_BY_CALLER 0x00000080 // the map is reserved by the caller 87f45b0e9edee72e97106c4b3d393b9bf1582303b3Dimitry Ivanov // and should not be unmapped 88f45b0e9edee72e97106c4b3d393b9bf1582303b3Dimitry Ivanov#define FLAG_NEW_SOINFO 0x40000000 // new soinfo format 891dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 90d225a5e65223b375a63548c4b780f04d8f3d7b60Dmitriy Ivanov#define SUPPORTED_DT_FLAGS_1 (DF_1_NOW | DF_1_GLOBAL | DF_1_NODELETE) 91d225a5e65223b375a63548c4b780f04d8f3d7b60Dmitriy Ivanov 9242d5fcb9f494eb45de3b6bf759f4a18076e84728Dmitriy Ivanov#define SOINFO_VERSION 3 930d15094287fe0f288d9c258953143fc1998b6b5aDmitriy Ivanov 94280d54680d8842df5b0e37ec50acde48957d8e7aDmitriy Ivanov#if defined(__work_around_b_24465209__) 951dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#define SOINFO_NAME_LEN 128 96aae859cc3ca127d890e853cbf12b731e05624a22Dmitriy Ivanov#endif 971dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 98ca0c11bd823f37f03cc8067cb182876827d5275aElliott Hughestypedef void (*linker_function_t)(); 99ca0c11bd823f37f03cc8067cb182876827d5275aElliott Hughes 1009918665a45095ad135576f005c0e5307feb366a1Chris Dearman// Android uses RELA for aarch64 and x86_64. mips64 still uses REL. 1019918665a45095ad135576f005c0e5307feb366a1Chris Dearman#if defined(__aarch64__) || defined(__x86_64__) 1024eeb1f12a8b63afc0d0ad4d466b16fbffb21cd5aElliott Hughes#define USE_RELA 1 1034eeb1f12a8b63afc0d0ad4d466b16fbffb21cd5aElliott Hughes#endif 1044eeb1f12a8b63afc0d0ad4d466b16fbffb21cd5aElliott Hughes 105d59e50063ad708509f3ad83350be33f5612c4f54Dmitriy Ivanovstruct soinfo; 106d59e50063ad708509f3ad83350be33f5612c4f54Dmitriy Ivanov 107d59e50063ad708509f3ad83350be33f5612c4f54Dmitriy Ivanovclass SoinfoListAllocator { 108ec18ce06f2d007be40ad6f043058f5a4c7236573Dmitriy Ivanov public: 109d59e50063ad708509f3ad83350be33f5612c4f54Dmitriy Ivanov static LinkedListEntry<soinfo>* alloc(); 110d59e50063ad708509f3ad83350be33f5612c4f54Dmitriy Ivanov static void free(LinkedListEntry<soinfo>* entry); 111ec18ce06f2d007be40ad6f043058f5a4c7236573Dmitriy Ivanov 112ec18ce06f2d007be40ad6f043058f5a4c7236573Dmitriy Ivanov private: 113d59e50063ad708509f3ad83350be33f5612c4f54Dmitriy Ivanov // unconstructable 114d59e50063ad708509f3ad83350be33f5612c4f54Dmitriy Ivanov DISALLOW_IMPLICIT_CONSTRUCTORS(SoinfoListAllocator); 115d59e50063ad708509f3ad83350be33f5612c4f54Dmitriy Ivanov}; 116d59e50063ad708509f3ad83350be33f5612c4f54Dmitriy Ivanov 1170551c1d47bad202ce6dd90757067bc0fd217497aDimitry Ivanovclass NamespaceListAllocator { 1180551c1d47bad202ce6dd90757067bc0fd217497aDimitry Ivanov public: 1190551c1d47bad202ce6dd90757067bc0fd217497aDimitry Ivanov static LinkedListEntry<android_namespace_t>* alloc(); 1200551c1d47bad202ce6dd90757067bc0fd217497aDimitry Ivanov static void free(LinkedListEntry<android_namespace_t>* entry); 1210551c1d47bad202ce6dd90757067bc0fd217497aDimitry Ivanov 1220551c1d47bad202ce6dd90757067bc0fd217497aDimitry Ivanov private: 1230551c1d47bad202ce6dd90757067bc0fd217497aDimitry Ivanov // unconstructable 1240551c1d47bad202ce6dd90757067bc0fd217497aDimitry Ivanov DISALLOW_IMPLICIT_CONSTRUCTORS(NamespaceListAllocator); 1250551c1d47bad202ce6dd90757067bc0fd217497aDimitry Ivanov}; 1260551c1d47bad202ce6dd90757067bc0fd217497aDimitry Ivanov 127ec18ce06f2d007be40ad6f043058f5a4c7236573Dmitriy Ivanovclass SymbolName { 128ec18ce06f2d007be40ad6f043058f5a4c7236573Dmitriy Ivanov public: 129ec18ce06f2d007be40ad6f043058f5a4c7236573Dmitriy Ivanov explicit SymbolName(const char* name) 130ec18ce06f2d007be40ad6f043058f5a4c7236573Dmitriy Ivanov : name_(name), has_elf_hash_(false), has_gnu_hash_(false), 131ec18ce06f2d007be40ad6f043058f5a4c7236573Dmitriy Ivanov elf_hash_(0), gnu_hash_(0) { } 132ec18ce06f2d007be40ad6f043058f5a4c7236573Dmitriy Ivanov 133ec18ce06f2d007be40ad6f043058f5a4c7236573Dmitriy Ivanov const char* get_name() { 134ec18ce06f2d007be40ad6f043058f5a4c7236573Dmitriy Ivanov return name_; 135ec18ce06f2d007be40ad6f043058f5a4c7236573Dmitriy Ivanov } 136ec18ce06f2d007be40ad6f043058f5a4c7236573Dmitriy Ivanov 137ec18ce06f2d007be40ad6f043058f5a4c7236573Dmitriy Ivanov uint32_t elf_hash(); 138ec18ce06f2d007be40ad6f043058f5a4c7236573Dmitriy Ivanov uint32_t gnu_hash(); 139ec18ce06f2d007be40ad6f043058f5a4c7236573Dmitriy Ivanov 140ec18ce06f2d007be40ad6f043058f5a4c7236573Dmitriy Ivanov private: 141ec18ce06f2d007be40ad6f043058f5a4c7236573Dmitriy Ivanov const char* name_; 142ec18ce06f2d007be40ad6f043058f5a4c7236573Dmitriy Ivanov bool has_elf_hash_; 143ec18ce06f2d007be40ad6f043058f5a4c7236573Dmitriy Ivanov bool has_gnu_hash_; 144ec18ce06f2d007be40ad6f043058f5a4c7236573Dmitriy Ivanov uint32_t elf_hash_; 145ec18ce06f2d007be40ad6f043058f5a4c7236573Dmitriy Ivanov uint32_t gnu_hash_; 146ec18ce06f2d007be40ad6f043058f5a4c7236573Dmitriy Ivanov 147ec18ce06f2d007be40ad6f043058f5a4c7236573Dmitriy Ivanov DISALLOW_IMPLICIT_CONSTRUCTORS(SymbolName); 148ec18ce06f2d007be40ad6f043058f5a4c7236573Dmitriy Ivanov}; 149ec18ce06f2d007be40ad6f043058f5a4c7236573Dmitriy Ivanov 1502a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanovstruct version_info { 1514a2c5aa30ceea2aaf8dcaee2feb4879978af4fceDimitry Ivanov constexpr version_info() : elf_hash(0), name(nullptr), target_si(nullptr) {} 1522a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov 1532a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov uint32_t elf_hash; 1542a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov const char* name; 1552a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov const soinfo* target_si; 1562a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov}; 1572a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov 1582a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov// Class used construct version dependency graph. 1592a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanovclass VersionTracker { 1602a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov public: 1612a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov VersionTracker() = default; 1622a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov bool init(const soinfo* si_from); 1632a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov 1642a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov const version_info* get_version_info(ElfW(Versym) source_symver) const; 1652a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov private: 1662a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov bool init_verneed(const soinfo* si_from); 1672a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov bool init_verdef(const soinfo* si_from); 1682a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov void add_version_info(size_t source_index, ElfW(Word) elf_hash, 1692a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov const char* ver_name, const soinfo* target_si); 1702a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov 1712a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov std::vector<version_info> version_infos; 1722a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov 1732a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov DISALLOW_COPY_AND_ASSIGN(VersionTracker); 1742a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov}; 1752a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov 17618a206c81d9743481e364384affd43306911283dElliott Hughesstruct soinfo { 177ca0c11bd823f37f03cc8067cb182876827d5275aElliott Hughes public: 178d59e50063ad708509f3ad83350be33f5612c4f54Dmitriy Ivanov typedef LinkedList<soinfo, SoinfoListAllocator> soinfo_list_t; 1790551c1d47bad202ce6dd90757067bc0fd217497aDimitry Ivanov typedef LinkedList<android_namespace_t, NamespaceListAllocator> android_namespace_list_t; 180280d54680d8842df5b0e37ec50acde48957d8e7aDmitriy Ivanov#if defined(__work_around_b_24465209__) 181aae859cc3ca127d890e853cbf12b731e05624a22Dmitriy Ivanov private: 182aae859cc3ca127d890e853cbf12b731e05624a22Dmitriy Ivanov char old_name_[SOINFO_NAME_LEN]; 183aae859cc3ca127d890e853cbf12b731e05624a22Dmitriy Ivanov#endif 184d59e50063ad708509f3ad83350be33f5612c4f54Dmitriy Ivanov public: 1850266ae5f884d72da58f33a072e865ba131234a5eElliott Hughes const ElfW(Phdr)* phdr; 186ca0c11bd823f37f03cc8067cb182876827d5275aElliott Hughes size_t phnum; 1870266ae5f884d72da58f33a072e865ba131234a5eElliott Hughes ElfW(Addr) entry; 1880266ae5f884d72da58f33a072e865ba131234a5eElliott Hughes ElfW(Addr) base; 1895ceb889ac9a36e74e4e00c34c57cbb58d73e228cWeiwu Chen size_t size; 1901dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 191280d54680d8842df5b0e37ec50acde48957d8e7aDmitriy Ivanov#if defined(__work_around_b_24465209__) 192ca0c11bd823f37f03cc8067cb182876827d5275aElliott Hughes uint32_t unused1; // DO NOT USE, maintained for compatibility. 193c620059479c47a78d57086d73726c9adc2f337adElliott Hughes#endif 19438bccb271f121fc06eaa0d8fbd3c982bc44c36b7Nick Kralevich 1950266ae5f884d72da58f33a072e865ba131234a5eElliott Hughes ElfW(Dyn)* dynamic; 1961dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 197280d54680d8842df5b0e37ec50acde48957d8e7aDmitriy Ivanov#if defined(__work_around_b_24465209__) 198ca0c11bd823f37f03cc8067cb182876827d5275aElliott Hughes uint32_t unused2; // DO NOT USE, maintained for compatibility 199ca0c11bd823f37f03cc8067cb182876827d5275aElliott Hughes uint32_t unused3; // DO NOT USE, maintained for compatibility 200c620059479c47a78d57086d73726c9adc2f337adElliott Hughes#endif 2011dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 202d23736e4f228e46304b7cbc674a1d0094d73e0f5Elliott Hughes soinfo* next; 2036cdeb5234d7f4523fe9d83974f265d80f10512a6Dmitriy Ivanov private: 204ab972b9adf8789a9e1b03129cd7f0c22e6bba117Dmitriy Ivanov uint32_t flags_; 205ab972b9adf8789a9e1b03129cd7f0c22e6bba117Dmitriy Ivanov 206047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov const char* strtab_; 207047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov ElfW(Sym)* symtab_; 2081dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 209047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov size_t nbucket_; 210047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov size_t nchain_; 211047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov uint32_t* bucket_; 212047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov uint32_t* chain_; 2131dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 2149918665a45095ad135576f005c0e5307feb366a1Chris Dearman#if defined(__mips__) || !defined(__LP64__) 2159918665a45095ad135576f005c0e5307feb366a1Chris Dearman // This is only used by mips and mips64, but needs to be here for 2164eeb1f12a8b63afc0d0ad4d466b16fbffb21cd5aElliott Hughes // all 32-bit architectures to preserve binary compatibility. 217047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov ElfW(Addr)** plt_got_; 2184eeb1f12a8b63afc0d0ad4d466b16fbffb21cd5aElliott Hughes#endif 2194eeb1f12a8b63afc0d0ad4d466b16fbffb21cd5aElliott Hughes 2204eeb1f12a8b63afc0d0ad4d466b16fbffb21cd5aElliott Hughes#if defined(USE_RELA) 221047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov ElfW(Rela)* plt_rela_; 222047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov size_t plt_rela_count_; 223c00f2cb587630d5e954c7f548749f1e3170b3cb1Elliott Hughes 224047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov ElfW(Rela)* rela_; 225047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov size_t rela_count_; 226c00f2cb587630d5e954c7f548749f1e3170b3cb1Elliott Hughes#else 227047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov ElfW(Rel)* plt_rel_; 228047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov size_t plt_rel_count_; 2291dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 230047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov ElfW(Rel)* rel_; 231047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov size_t rel_count_; 232c00f2cb587630d5e954c7f548749f1e3170b3cb1Elliott Hughes#endif 2331dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 234047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov linker_function_t* preinit_array_; 235047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov size_t preinit_array_count_; 2361dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 237047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov linker_function_t* init_array_; 238047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov size_t init_array_count_; 239047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov linker_function_t* fini_array_; 240047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov size_t fini_array_count_; 2411dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 242047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov linker_function_t init_func_; 243047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov linker_function_t fini_func_; 2441dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 2454eeb1f12a8b63afc0d0ad4d466b16fbffb21cd5aElliott Hughes#if defined(__arm__) 246ab972b9adf8789a9e1b03129cd7f0c22e6bba117Dmitriy Ivanov public: 247d23736e4f228e46304b7cbc674a1d0094d73e0f5Elliott Hughes // ARM EABI section used for stack unwinding. 2481b20dafdbe65e43b9f4c95057e8482380833ea91Dmitriy Ivanov uint32_t* ARM_exidx; 249ca0c11bd823f37f03cc8067cb182876827d5275aElliott Hughes size_t ARM_exidx_count; 250889409168322920ab6cddeb93f506c983d8b5878Dmitriy Ivanov private: 251ab972b9adf8789a9e1b03129cd7f0c22e6bba117Dmitriy Ivanov#elif defined(__mips__) 252047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov uint32_t mips_symtabno_; 253047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov uint32_t mips_local_gotno_; 254047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov uint32_t mips_gotsym_; 255f39cb63603da949325b4d186e870d0c3de01eb30Dmitriy Ivanov bool mips_relocate_got(const VersionTracker& version_tracker, 256f39cb63603da949325b4d186e870d0c3de01eb30Dmitriy Ivanov const soinfo_list_t& global_group, 257f39cb63603da949325b4d186e870d0c3de01eb30Dmitriy Ivanov const soinfo_list_t& local_group); 258bc425c73e07dc150d1dcb64889ca7d379dace410Duane Sand#if !defined(__LP64__) 259bc425c73e07dc150d1dcb64889ca7d379dace410Duane Sand bool mips_check_and_adjust_fp_modes(); 260bc425c73e07dc150d1dcb64889ca7d379dace410Duane Sand#endif 2611dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#endif 262ab972b9adf8789a9e1b03129cd7f0c22e6bba117Dmitriy Ivanov size_t ref_count_; 263047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov public: 2643a9c5d66dc8d41272f51482b713717af7049697eElliott Hughes link_map link_map_head; 265e83c56dfbb6a9a61f0f18031620322af97e80162Evgeniy Stepanov 266d23736e4f228e46304b7cbc674a1d0094d73e0f5Elliott Hughes bool constructors_called; 2679ec0f03a0d0b17bbb94ac0b9fef6add28a133c3aNick Kralevich 268d23736e4f228e46304b7cbc674a1d0094d73e0f5Elliott Hughes // When you read a virtual address from the ELF file, add this 269d23736e4f228e46304b7cbc674a1d0094d73e0f5Elliott Hughes // value to get the corresponding address in the process' address space. 2700266ae5f884d72da58f33a072e865ba131234a5eElliott Hughes ElfW(Addr) load_bias; 2715ae44f302b7d1d19f25c4c6f125e32dc369961d9Ard Biesheuvel 27256be6ed9e4ac99fdd920090ee89c57e3cf55e885Dimitry Ivanov#if !defined(__LP64__) 27356be6ed9e4ac99fdd920090ee89c57e3cf55e885Dimitry Ivanov bool has_text_relocations; 274e4d792adb8d6f9228b9ac9dc1ad7f43b271f085fElliott Hughes#endif 27596bc37f2e1093416a432135265fd7a4db6c3df17Dmitriy Ivanov bool has_DT_SYMBOLIC; 2760d15094287fe0f288d9c258953143fc1998b6b5aDmitriy Ivanov 277047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov public: 27842d5fcb9f494eb45de3b6bf759f4a18076e84728Dmitriy Ivanov soinfo(android_namespace_t* ns, const char* name, const struct stat* file_stat, 27942d5fcb9f494eb45de3b6bf759f4a18076e84728Dmitriy Ivanov off64_t file_offset, int rtld_flags); 280ae74e8750b9dae51b24a22fdb4b0e0a2d84f37b9Dimitry Ivanov ~soinfo(); 2810d15094287fe0f288d9c258953143fc1998b6b5aDmitriy Ivanov 282047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov void call_constructors(); 283047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov void call_destructors(); 284047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov void call_pre_init_constructors(); 285047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov bool prelink_image(); 28620d89cb5b0d5eb7546a8fe8da44bbd91564dbddaDmitriy Ivanov bool link_image(const soinfo_list_t& global_group, const soinfo_list_t& local_group, 28720d89cb5b0d5eb7546a8fe8da44bbd91564dbddaDmitriy Ivanov const android_dlextinfo* extinfo); 2889ce09e423f24823d52f19ab8247e078977100132Mingwei Shi bool protect_relro(); 289d23736e4f228e46304b7cbc674a1d0094d73e0f5Elliott Hughes 290d59e50063ad708509f3ad83350be33f5612c4f54Dmitriy Ivanov void add_child(soinfo* child); 291d59e50063ad708509f3ad83350be33f5612c4f54Dmitriy Ivanov void remove_all_links(); 292d59e50063ad708509f3ad83350be33f5612c4f54Dmitriy Ivanov 293d225a5e65223b375a63548c4b780f04d8f3d7b60Dmitriy Ivanov ino_t get_st_ino() const; 294d225a5e65223b375a63548c4b780f04d8f3d7b60Dmitriy Ivanov dev_t get_st_dev() const; 295d225a5e65223b375a63548c4b780f04d8f3d7b60Dmitriy Ivanov off64_t get_file_offset() const; 296c5a13efa9bc4264be0a9a9e37c00633af01584edBrigid Smith 297d225a5e65223b375a63548c4b780f04d8f3d7b60Dmitriy Ivanov uint32_t get_rtld_flags() const; 298d225a5e65223b375a63548c4b780f04d8f3d7b60Dmitriy Ivanov uint32_t get_dt_flags_1() const; 299d225a5e65223b375a63548c4b780f04d8f3d7b60Dmitriy Ivanov void set_dt_flags_1(uint32_t dt_flags_1); 300e8ba50fe0d51fbefee1a8f5bb62bf51d841512c8Dmitriy Ivanov 301d59e50063ad708509f3ad83350be33f5612c4f54Dmitriy Ivanov soinfo_list_t& get_children(); 3022a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov const soinfo_list_t& get_children() const; 3032a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov 30414669a939d113214a4a20b9318fca0992d5453f0Dmitriy Ivanov soinfo_list_t& get_parents(); 305d59e50063ad708509f3ad83350be33f5612c4f54Dmitriy Ivanov 3062a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov bool find_symbol_by_name(SymbolName& symbol_name, 3072a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov const version_info* vi, 3082a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov const ElfW(Sym)** symbol) const; 3092a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov 310ec18ce06f2d007be40ad6f043058f5a4c7236573Dmitriy Ivanov ElfW(Sym)* find_symbol_by_address(const void* addr); 3112a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov ElfW(Addr) resolve_symbol_address(const ElfW(Sym)* s) const; 3129aea164457c269c475592da36b4655d45f55c7bcDmitriy Ivanov 3136cdeb5234d7f4523fe9d83974f265d80f10512a6Dmitriy Ivanov const char* get_string(ElfW(Word) index) const; 3141b20dafdbe65e43b9f4c95057e8482380833ea91Dmitriy Ivanov bool can_unload() const; 315ec18ce06f2d007be40ad6f043058f5a4c7236573Dmitriy Ivanov bool is_gnu_hash() const; 3166cdeb5234d7f4523fe9d83974f265d80f10512a6Dmitriy Ivanov 317aae859cc3ca127d890e853cbf12b731e05624a22Dmitriy Ivanov bool inline has_min_version(uint32_t min_version __unused) const { 318280d54680d8842df5b0e37ec50acde48957d8e7aDmitriy Ivanov#if defined(__work_around_b_24465209__) 319ab972b9adf8789a9e1b03129cd7f0c22e6bba117Dmitriy Ivanov return (flags_ & FLAG_NEW_SOINFO) != 0 && version_ >= min_version; 320aae859cc3ca127d890e853cbf12b731e05624a22Dmitriy Ivanov#else 321aae859cc3ca127d890e853cbf12b731e05624a22Dmitriy Ivanov return true; 322aae859cc3ca127d890e853cbf12b731e05624a22Dmitriy Ivanov#endif 3230d15094287fe0f288d9c258953143fc1998b6b5aDmitriy Ivanov } 3241b20dafdbe65e43b9f4c95057e8482380833ea91Dmitriy Ivanov 325ab972b9adf8789a9e1b03129cd7f0c22e6bba117Dmitriy Ivanov bool is_linked() const; 3269acb3b747ce2e9a526cc6510029a6b432f551856Dimitry Ivanov bool is_linker() const; 327ab972b9adf8789a9e1b03129cd7f0c22e6bba117Dmitriy Ivanov bool is_main_executable() const; 328ab972b9adf8789a9e1b03129cd7f0c22e6bba117Dmitriy Ivanov 329ab972b9adf8789a9e1b03129cd7f0c22e6bba117Dmitriy Ivanov void set_linked(); 330ab972b9adf8789a9e1b03129cd7f0c22e6bba117Dmitriy Ivanov void set_linker_flag(); 331ab972b9adf8789a9e1b03129cd7f0c22e6bba117Dmitriy Ivanov void set_main_executable(); 33242d5fcb9f494eb45de3b6bf759f4a18076e84728Dmitriy Ivanov void set_nodelete(); 333ab972b9adf8789a9e1b03129cd7f0c22e6bba117Dmitriy Ivanov 334ab972b9adf8789a9e1b03129cd7f0c22e6bba117Dmitriy Ivanov void increment_ref_count(); 335ab972b9adf8789a9e1b03129cd7f0c22e6bba117Dmitriy Ivanov size_t decrement_ref_count(); 336ab972b9adf8789a9e1b03129cd7f0c22e6bba117Dmitriy Ivanov 337ab972b9adf8789a9e1b03129cd7f0c22e6bba117Dmitriy Ivanov soinfo* get_local_group_root() const; 338ab972b9adf8789a9e1b03129cd7f0c22e6bba117Dmitriy Ivanov 3394f7a7ad3fed2ea90d454ec9f3cabfffb0deda8c4Dmitriy Ivanov void set_soname(const char* soname); 340aae859cc3ca127d890e853cbf12b731e05624a22Dmitriy Ivanov const char* get_soname() const; 341aae859cc3ca127d890e853cbf12b731e05624a22Dmitriy Ivanov const char* get_realpath() const; 3422a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov const ElfW(Versym)* get_versym(size_t n) const; 3432a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov ElfW(Addr) get_verneed_ptr() const; 3442a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov size_t get_verneed_cnt() const; 3452a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov ElfW(Addr) get_verdef_ptr() const; 3462a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov size_t get_verdef_cnt() const; 3472a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov 3482a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov bool find_verdef_version_index(const version_info* vi, ElfW(Versym)* versym) const; 349618f1a36f8635fa0f2d60c621fbf79ead2c3f3deDmitriy Ivanov 3501913352c6b3501893dfb45189754970f9dc6e7bbDmitriy Ivanov uint32_t get_target_sdk_version() const; 3511913352c6b3501893dfb45189754970f9dc6e7bbDmitriy Ivanov 3524f7a7ad3fed2ea90d454ec9f3cabfffb0deda8c4Dmitriy Ivanov void set_dt_runpath(const char *); 3536865082ca6d887766c6651ed2d079dca56a99d32Evgenii Stepanov const std::vector<std::string>& get_dt_runpath() const; 3540551c1d47bad202ce6dd90757067bc0fd217497aDimitry Ivanov android_namespace_t* get_primary_namespace(); 3550551c1d47bad202ce6dd90757067bc0fd217497aDimitry Ivanov void add_secondary_namespace(android_namespace_t* secondary_ns); 3566865082ca6d887766c6651ed2d079dca56a99d32Evgenii Stepanov 357f45b0e9edee72e97106c4b3d393b9bf1582303b3Dimitry Ivanov void set_mapped_by_caller(bool reserved_map); 358f45b0e9edee72e97106c4b3d393b9bf1582303b3Dimitry Ivanov bool is_mapped_by_caller() const; 359f45b0e9edee72e97106c4b3d393b9bf1582303b3Dimitry Ivanov 360ae74e8750b9dae51b24a22fdb4b0e0a2d84f37b9Dimitry Ivanov uintptr_t get_handle() const; 361ae74e8750b9dae51b24a22fdb4b0e0a2d84f37b9Dimitry Ivanov void generate_handle(); 362ae74e8750b9dae51b24a22fdb4b0e0a2d84f37b9Dimitry Ivanov void* to_handle(); 363ae74e8750b9dae51b24a22fdb4b0e0a2d84f37b9Dimitry Ivanov 364d23736e4f228e46304b7cbc674a1d0094d73e0f5Elliott Hughes private: 3652a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov bool elf_lookup(SymbolName& symbol_name, const version_info* vi, uint32_t* symbol_index) const; 366ec18ce06f2d007be40ad6f043058f5a4c7236573Dmitriy Ivanov ElfW(Sym)* elf_addr_lookup(const void* addr); 3672a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov bool gnu_lookup(SymbolName& symbol_name, const version_info* vi, uint32_t* symbol_index) const; 368ec18ce06f2d007be40ad6f043058f5a4c7236573Dmitriy Ivanov ElfW(Sym)* gnu_addr_lookup(const void* addr); 369ec18ce06f2d007be40ad6f043058f5a4c7236573Dmitriy Ivanov 37031b408d2c2e070c35838e7859ca4a4e5eb0c45fcDmitriy Ivanov bool lookup_version_info(const VersionTracker& version_tracker, ElfW(Word) sym, 37131b408d2c2e070c35838e7859ca4a4e5eb0c45fcDmitriy Ivanov const char* sym_name, const version_info** vi); 37231b408d2c2e070c35838e7859ca4a4e5eb0c45fcDmitriy Ivanov 373047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov void call_array(const char* array_name, linker_function_t* functions, size_t count, bool reverse); 374047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov void call_function(const char* function_name, linker_function_t function); 375fa26eee77685e8dee7986e62a7d263003f5bd25aDmitriy Ivanov template<typename ElfRelIteratorT> 3767e4bbbae4a1e2034e6fa47ac2b0e1e7ca970acf0Dmitriy Ivanov bool relocate(const VersionTracker& version_tracker, ElfRelIteratorT&& rel_iterator, 3777e4bbbae4a1e2034e6fa47ac2b0e1e7ca970acf0Dmitriy Ivanov const soinfo_list_t& global_group, const soinfo_list_t& local_group); 378d59e50063ad708509f3ad83350be33f5612c4f54Dmitriy Ivanov 379d59e50063ad708509f3ad83350be33f5612c4f54Dmitriy Ivanov private: 380d59e50063ad708509f3ad83350be33f5612c4f54Dmitriy Ivanov // This part of the structure is only available 381d59e50063ad708509f3ad83350be33f5612c4f54Dmitriy Ivanov // when FLAG_NEW_SOINFO is set in this->flags. 382047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov uint32_t version_; 383c5a13efa9bc4264be0a9a9e37c00633af01584edBrigid Smith 3840d15094287fe0f288d9c258953143fc1998b6b5aDmitriy Ivanov // version >= 0 385047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov dev_t st_dev_; 386047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov ino_t st_ino_; 387d59e50063ad708509f3ad83350be33f5612c4f54Dmitriy Ivanov 388d59e50063ad708509f3ad83350be33f5612c4f54Dmitriy Ivanov // dependency graph 389047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov soinfo_list_t children_; 390047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov soinfo_list_t parents_; 391d59e50063ad708509f3ad83350be33f5612c4f54Dmitriy Ivanov 3920d15094287fe0f288d9c258953143fc1998b6b5aDmitriy Ivanov // version >= 1 393047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov off64_t file_offset_; 394047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov uint32_t rtld_flags_; 395047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov uint32_t dt_flags_1_; 396047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov size_t strtab_size_; 3976cdeb5234d7f4523fe9d83974f265d80f10512a6Dmitriy Ivanov 398ec18ce06f2d007be40ad6f043058f5a4c7236573Dmitriy Ivanov // version >= 2 3993597b8055da090ef3f1ee662e96dcb952bba2c30Dmitriy Ivanov 4003597b8055da090ef3f1ee662e96dcb952bba2c30Dmitriy Ivanov size_t gnu_nbucket_; 4013597b8055da090ef3f1ee662e96dcb952bba2c30Dmitriy Ivanov uint32_t* gnu_bucket_; 4023597b8055da090ef3f1ee662e96dcb952bba2c30Dmitriy Ivanov uint32_t* gnu_chain_; 403047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov uint32_t gnu_maskwords_; 404047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov uint32_t gnu_shift2_; 405047b5934b5f1c62502fc9262ce634529c6cc1420Dmitriy Ivanov ElfW(Addr)* gnu_bloom_filter_; 406ec18ce06f2d007be40ad6f043058f5a4c7236573Dmitriy Ivanov 407ab972b9adf8789a9e1b03129cd7f0c22e6bba117Dmitriy Ivanov soinfo* local_group_root_; 408ab972b9adf8789a9e1b03129cd7f0c22e6bba117Dmitriy Ivanov 40918a6956b76a071097fc658c5fe13ef010e31864aDmitriy Ivanov uint8_t* android_relocs_; 41018a6956b76a071097fc658c5fe13ef010e31864aDmitriy Ivanov size_t android_relocs_size_; 41118a6956b76a071097fc658c5fe13ef010e31864aDmitriy Ivanov 412618f1a36f8635fa0f2d60c621fbf79ead2c3f3deDmitriy Ivanov const char* soname_; 413aae859cc3ca127d890e853cbf12b731e05624a22Dmitriy Ivanov std::string realpath_; 414618f1a36f8635fa0f2d60c621fbf79ead2c3f3deDmitriy Ivanov 4152a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov const ElfW(Versym)* versym_; 4162a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov 4172a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov ElfW(Addr) verdef_ptr_; 4182a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov size_t verdef_cnt_; 4192a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov 4202a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov ElfW(Addr) verneed_ptr_; 4212a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov size_t verneed_cnt_; 4222a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov 4231913352c6b3501893dfb45189754970f9dc6e7bbDmitriy Ivanov uint32_t target_sdk_version_; 4241913352c6b3501893dfb45189754970f9dc6e7bbDmitriy Ivanov 42542d5fcb9f494eb45de3b6bf759f4a18076e84728Dmitriy Ivanov // version >= 3 4266865082ca6d887766c6651ed2d079dca56a99d32Evgenii Stepanov std::vector<std::string> dt_runpath_; 4270551c1d47bad202ce6dd90757067bc0fd217497aDimitry Ivanov android_namespace_t* primary_namespace_; 4280551c1d47bad202ce6dd90757067bc0fd217497aDimitry Ivanov android_namespace_list_t secondary_namespaces_; 429ae74e8750b9dae51b24a22fdb4b0e0a2d84f37b9Dimitry Ivanov uintptr_t handle_; 4306865082ca6d887766c6651ed2d079dca56a99d32Evgenii Stepanov 4316cdeb5234d7f4523fe9d83974f265d80f10512a6Dmitriy Ivanov friend soinfo* get_libdl_info(); 4321dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project}; 4331dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 4342a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanovbool soinfo_do_lookup(soinfo* si_from, const char* name, const version_info* vi, 4352a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov soinfo** si_found_in, const soinfo::soinfo_list_t& global_group, 4362a815361448d01b0f4e575f507ce31913214c536Dmitriy Ivanov const soinfo::soinfo_list_t& local_group, const ElfW(Sym)** symbol); 437114ff69f1753c7fe4d749f8fb0c082b80e0d43f4Dmitriy Ivanov 438114ff69f1753c7fe4d749f8fb0c082b80e0d43f4Dmitriy Ivanovenum RelocationKind { 439114ff69f1753c7fe4d749f8fb0c082b80e0d43f4Dmitriy Ivanov kRelocAbsolute = 0, 440114ff69f1753c7fe4d749f8fb0c082b80e0d43f4Dmitriy Ivanov kRelocRelative, 441114ff69f1753c7fe4d749f8fb0c082b80e0d43f4Dmitriy Ivanov kRelocCopy, 442114ff69f1753c7fe4d749f8fb0c082b80e0d43f4Dmitriy Ivanov kRelocSymbol, 443114ff69f1753c7fe4d749f8fb0c082b80e0d43f4Dmitriy Ivanov kRelocMax 444114ff69f1753c7fe4d749f8fb0c082b80e0d43f4Dmitriy Ivanov}; 445114ff69f1753c7fe4d749f8fb0c082b80e0d43f4Dmitriy Ivanov 446114ff69f1753c7fe4d749f8fb0c082b80e0d43f4Dmitriy Ivanovvoid count_relocation(RelocationKind kind); 447114ff69f1753c7fe4d749f8fb0c082b80e0d43f4Dmitriy Ivanov 4481b20dafdbe65e43b9f4c95057e8482380833ea91Dmitriy Ivanovsoinfo* get_libdl_info(); 4491dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 450a4aafd156068ee174012f28cd894dbecf0e4ab90Elliott Hughesvoid do_android_get_LD_LIBRARY_PATH(char*, size_t); 451cade4c36e7c9c62db3f476a0f9cfc329bac9acb7Elliott Hughesvoid do_android_update_LD_LIBRARY_PATH(const char* ld_library_path); 452ae74e8750b9dae51b24a22fdb4b0e0a2d84f37b9Dimitry Ivanovvoid* do_dlopen(const char* name, int flags, const android_dlextinfo* extinfo, void* caller_addr); 453ae74e8750b9dae51b24a22fdb4b0e0a2d84f37b9Dimitry Ivanovint do_dlclose(void* handle); 45416084168111cd7d2ac8a6b92e6fa6df5696928a5David 'Digit' Turner 4557271caf93db6897cdbcfca169441045bb52de61bDmitriy Ivanovint do_dl_iterate_phdr(int (*cb)(dl_phdr_info* info, size_t size, void* data), void* data); 4567271caf93db6897cdbcfca169441045bb52de61bDmitriy Ivanov 4574a2c5aa30ceea2aaf8dcaee2feb4879978af4fceDimitry Ivanovbool do_dlsym(void* handle, const char* sym_name, const char* sym_ver, 4584a2c5aa30ceea2aaf8dcaee2feb4879978af4fceDimitry Ivanov void* caller_addr, void** symbol); 45942d5fcb9f494eb45de3b6bf759f4a18076e84728Dmitriy Ivanov 4604a2c5aa30ceea2aaf8dcaee2feb4879978af4fceDimitry Ivanovint do_dladdr(const void* addr, Dl_info* info); 461d23736e4f228e46304b7cbc674a1d0094d73e0f5Elliott Hughes 462d4ee82dfa3ba01baa10e3ca48fcb31a27b8a4e81Brian Carlstromvoid debuggerd_init(); 4631728b2396591853345507a063ed6075dfd251706Elliott Hughesextern "C" abort_msg_t* g_abort_message; 4644688279db5dcc4004941e7f133c4a1c3617d842cElliott Hughes 465650be4e584eeab3591b9e273bfd6d169eea60853Elliott Hugheschar* linker_get_error_buffer(); 466650be4e584eeab3591b9e273bfd6d169eea60853Elliott Hughessize_t linker_get_error_buffer_size(); 467650be4e584eeab3591b9e273bfd6d169eea60853Elliott Hughes 46879fd668bb4ddb22432eeda2ebd8d10359013d9a8Dmitriy Ivanovvoid set_application_target_sdk_version(uint32_t target); 46979fd668bb4ddb22432eeda2ebd8d10359013d9a8Dmitriy Ivanovuint32_t get_application_target_sdk_version(); 47079fd668bb4ddb22432eeda2ebd8d10359013d9a8Dmitriy Ivanov 47119b669b00325bcbab4679c4e57c5d8d95f54decbDimitry Ivanovenum { 47219b669b00325bcbab4679c4e57c5d8d95f54decbDimitry Ivanov /* A regular namespace is the namespace with a custom search path that does 47319b669b00325bcbab4679c4e57c5d8d95f54decbDimitry Ivanov * not impose any restrictions on the location of native libraries. 47419b669b00325bcbab4679c4e57c5d8d95f54decbDimitry Ivanov */ 47519b669b00325bcbab4679c4e57c5d8d95f54decbDimitry Ivanov ANDROID_NAMESPACE_TYPE_REGULAR = 0, 47619b669b00325bcbab4679c4e57c5d8d95f54decbDimitry Ivanov 47719b669b00325bcbab4679c4e57c5d8d95f54decbDimitry Ivanov /* An isolated namespace requires all the libraries to be on the search path 47819b669b00325bcbab4679c4e57c5d8d95f54decbDimitry Ivanov * or under permitted_when_isolated_path. The search path is the union of 47919b669b00325bcbab4679c4e57c5d8d95f54decbDimitry Ivanov * ld_library_path and default_library_path. 48019b669b00325bcbab4679c4e57c5d8d95f54decbDimitry Ivanov */ 48119b669b00325bcbab4679c4e57c5d8d95f54decbDimitry Ivanov ANDROID_NAMESPACE_TYPE_ISOLATED = 1, 48219b669b00325bcbab4679c4e57c5d8d95f54decbDimitry Ivanov 48319b669b00325bcbab4679c4e57c5d8d95f54decbDimitry Ivanov /* The shared namespace clones the list of libraries of the caller namespace upon creation 48419b669b00325bcbab4679c4e57c5d8d95f54decbDimitry Ivanov * which means that they are shared between namespaces - the caller namespace and the new one 48519b669b00325bcbab4679c4e57c5d8d95f54decbDimitry Ivanov * will use the same copy of a library if it was loaded prior to android_create_namespace call. 48619b669b00325bcbab4679c4e57c5d8d95f54decbDimitry Ivanov * 48719b669b00325bcbab4679c4e57c5d8d95f54decbDimitry Ivanov * Note that libraries loaded after the namespace is created will not be shared. 48819b669b00325bcbab4679c4e57c5d8d95f54decbDimitry Ivanov * 48919b669b00325bcbab4679c4e57c5d8d95f54decbDimitry Ivanov * Shared namespaces can be isolated or regular. Note that they do not inherit the search path nor 49019b669b00325bcbab4679c4e57c5d8d95f54decbDimitry Ivanov * permitted_path from the caller's namespace. 49119b669b00325bcbab4679c4e57c5d8d95f54decbDimitry Ivanov */ 49219b669b00325bcbab4679c4e57c5d8d95f54decbDimitry Ivanov ANDROID_NAMESPACE_TYPE_SHARED = 2, 49319b669b00325bcbab4679c4e57c5d8d95f54decbDimitry Ivanov ANDROID_NAMESPACE_TYPE_SHARED_ISOLATED = ANDROID_NAMESPACE_TYPE_SHARED | 49419b669b00325bcbab4679c4e57c5d8d95f54decbDimitry Ivanov ANDROID_NAMESPACE_TYPE_ISOLATED, 49519b669b00325bcbab4679c4e57c5d8d95f54decbDimitry Ivanov}; 49619b669b00325bcbab4679c4e57c5d8d95f54decbDimitry Ivanov 4971ffec1cc4d0e283bb1ff6f49843769a3493b8d73Dmitriy Ivanovbool init_namespaces(const char* public_ns_sonames, const char* anon_ns_library_path); 49849cfc899a3708fae9175e44c0c02cd479fda8b36Dimitry Ivanovandroid_namespace_t* create_namespace(const void* caller_addr, 49949cfc899a3708fae9175e44c0c02cd479fda8b36Dimitry Ivanov const char* name, 50049cfc899a3708fae9175e44c0c02cd479fda8b36Dimitry Ivanov const char* ld_library_path, 50149cfc899a3708fae9175e44c0c02cd479fda8b36Dimitry Ivanov const char* default_library_path, 50249cfc899a3708fae9175e44c0c02cd479fda8b36Dimitry Ivanov uint64_t type, 50349cfc899a3708fae9175e44c0c02cd479fda8b36Dimitry Ivanov const char* permitted_when_isolated_path, 50449cfc899a3708fae9175e44c0c02cd479fda8b36Dimitry Ivanov android_namespace_t* parent_namespace); 50542d5fcb9f494eb45de3b6bf759f4a18076e84728Dmitriy Ivanov 5061dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#endif 507