ARM学习（26）链接库的依赖查看

笔者今天来聊一下查看链接库的依赖。

通常情况下，运行一个可执行文件的时候，可能会出现找不到依赖库的情况，比如图下这种情况，可以看到是缺少了license.dll或者libtest.so，所以无法运行。怎么知道它到底缺少什么dll呢？有可能缺少不止一个dll呢？
在这里插入图片描述

一、PE格式下面查看依赖

1、Dependency Walker工具显示依赖

有一个工具，Dependency Walker，可以显示exe的依赖，以及dll的依赖。比如刚刚那个main.exe，可以看到缺少LICENSE.dll。
在这里插入图片描述
再比如：QT的一些库：Qt5SerialPort.dll，串口库，会依赖QT5CORE.dll、SETUPAPI.dll等

在这里插入图片描述

还比如python的库，本质上也是dll，同样可以看到依赖，缺少：Python3 和python38的dll，如下图所示。

在这里插入图片描述

2、PE工具读取导入表

相比上面那个工具，PE解析工具功能相关更多，可以查看DOS、NT header，section内容等。
例如section 导入表
在这里插入图片描述
还可以看到导入表的函数，当然导出表的函数也可以看到。

3、命令行工具dumpbin.exe

微软也提供了一个命令行工具： dumpbin.exe同样可以看到依赖。
需要输入参数 /DEPENDENTS，即可显示依赖。
在这里插入图片描述
查看其它功能，发现其优点与readelf文件一样，可以用来解析PE工具，其功能主要如下：

Microsoft (R) COFF/PE Dumper Version 14.29.30141.0
Copyright (C) Microsoft Corporation.  All rights reserved.用法: DUMPBIN [选项] [文件]选项:/ALL/ARCHIVEMEMBERS/CLRHEADER/DEPENDENTS/DIRECTIVES/DISASM[:{BYTES|NOBYTES}]/ERRORREPORT:{NONE|PROMPT|QUEUE|SEND}/EXPORTS/FPO/HEADERS/IMPORTS[:文件名]/LINENUMBERS/LINKERMEMBER[:{1|2|4|8|16|32}]/LOADCONFIG/NOLOGO/NOPDB/OUT:filename/PDATA/PDBPATH[:VERBOSE]/RANGE:vaMin[,vaMax]/RAWDATA[:{NONE|1|2|4|8}[,#]]/RELOCATIONS/SECTION:名称/SUMMARY/SYMBOLS/TLS/UNWINDINFO

比如查看导入表和导出表，dumpbin.exe /IMPORTS Qt5SerialPort.dll
可以看到其依赖了很多dll的符号。

Microsoft (R) COFF/PE Dumper Version 14.29.30141.0
Copyright (C) Microsoft Corporation.  All rights reserved.Dump of file Qt5SerialPort.dllFile Type: DLLSection contains the following imports:Qt5Core.dll100090CC Import Address Table1000CBE0 Import Name Table0 time date stamp0 Index of first forwarder referenceBE5 ?data@QByteArray@@QAEPADXZA77 ?constData@QByteArray@@QBEPBDXZ9C8 ?clear@QByteArray@@QAEXXZ1F8 ??0QString@@QAE@$$QAV0@@Z1F47 ?utf16@QString@@QBEPBGXZ1D1F ?toLocal8Bit@QString@@QHAE?AVQByteArray@@XZC6C ?detach@QListData@@QAEPAUData@1@H@ZC75 ?detach_grow@QListData@@QAEPAUData@1@PAHH@Z1707 ?realloc@QListData@@QAEXH@Z85B ?append@QListData@@QAEPAPAXXZA61 ?connectImpl@QObject@@CA?AVConnection@QMetaObject@@PBV1@PAPAX01PAVQSlotObjectBase@QtPrivate@@W4ConnectionType@Qt@@PBHPBU3@@Z16FD ?readyRead@QIODevice@@QAEXXZ92B ?bytesWritten@QIODevice@@QAEX_J@Z16D3 ?read@QRingBuffer@@QAE?AVQByteArray@@XZ85D ?append@QRingBuffer@@QAEXPBD_J@ZEEF ?get@QObjectPrivate@@SAPAV1@PAVQObject@@@ZC7 ??0QDeadlineTimer@@QAE@_JW4TimerType@Qt@@@ZF2B ?hasExpired@QDeadlineTimer@@QBE_NXZ1752 ?remainingTime@QDeadlineTimer@@QBE_JXZ156 ??0QLibrary@@QAE@PAVQObject@@@Z322 ??1QLibrary@@UAE@XZ1826 ?resolve@QLibrary@@QAEP6AXXZPBD@Z127A ?load@QLibrary@@QAE_NXZ10F0 ?isLoaded@QLibrary@@QBE_NXZ1968 ?setFileName@QLibrary@@QAEXABVQString@@@ZDE4 ?fileName@QLibrary@@QBE?AVQString@@XZD70 ?errorString@QLibrary@@QBE?AVQString@@XZ15DC ?qt_error_string@@YA?AVQString@@H@Z129D ?lock@QMutex@@QAEXXZ1F0B ?unlock@QMutexLocker@@QAEXXZ23A ??0QTimer@@QAE@PAVQObject@@@Z369 ??1QTimer@@UAE@XZ1B55 ?start@QTimer@@QAEXXZ1C84 ?timeout@QTimer@@QAEXUQPrivateSignal@1@@Z3A7 ??4QByteArray@@QAEAAV0@$$QAV0@@Z1616 ?qt_metacall@QTimer@@UAEHW4Call@QMetaObject@@HPAPAX@Z1653 ?qt_metacast@QTimer@@UAEPAXPBD@Z1C87 ?timerEvent@QTimer@@MAEXPAVQTimerEvent@@@Z1AA6 ?shared_null@QListData@@2UData@1@B1BD7 ?staticMetaObject@QTimer@@2UQMetaObject@@B9A ??0QChar@@QAE@UQLatin1Char@@@Z455 ??4QString@@QAEAAV0@ABV0@@ZA79 ?constData@QString@@QBEPBVQChar@@XZ886 ?arg@QString@@QBE?AV1@KHHVQChar@@@ZF99 ?indexOf@QString@@QBEHVQChar@@HW4CaseSensitivity@Qt@@@ZF9A ?indexOf@QString@@QBEHVQLatin1String@@HW4CaseSensitivity@Qt@@@ZF94 ?indexOf@QString@@QBEHABV1@HW4CaseSensitivity@Qt@@@Z1245 ?lastIndexOf@QString@@QBEHVQChar@@HW4CaseSensitivity@Qt@@@Z1357 ?mid@QString@@QBE?AV1@HH@Z1B7F ?startsWith@QString@@QBE_NVQLatin1String@@W4CaseSensitivity@Qt@@@Z1DEA ?toUpper@QString@@QHAE?AV1@XZEDA ?fromWCharArray@QString@@SA?AV1@PB_WH@Z1CFA ?toInt@QString@@QBEHPA_NH@Z1FD ??0QString@@QAE@HW4Initialization@Qt@@@Z869 ?appendLatin1To@QAbstractConcatenable@@KAXPBDHPAVQChar@@@Z56 ??0QByteArray@@QAE@$$QAV0@@ZCA5 ?dispose@QListData@@SAXPAUData@1@@Z570 ??8@YA_NABVQString@@0@Z1C85 ?timerEvent@QObject@@MAEXPAVQTimerEvent@@@Z1AFC ?skip@QIODevicePrivate@@UAE_J_J@Z1AEC ?size@QIODevice@@UBE_JXZ18B1 ?seek@QIODevice@@UAE_N_J@Z180F ?reset@QIODevice@@UAE_NXZ1535 ?putCharHelper@QIODevicePrivate@@UAE_ND@Z14B5 ?pos@QIODevice@@UBE_JXZ148F ?peek@QIODevicePrivate@@UAE_JPAD_J@Z148E ?peek@QIODevicePrivate@@UAE?AVQByteArray@@_J@ZD9B ?eventFilter@QObject@@UAE_NPAV1@PAVQEvent@@@ZD89 ?event@QObject@@UAE_NPAVQEvent@@@ZC9A ?disconnectNotify@QObject@@MAEXABVQMetaMethod@@@Z133A ?metaObject@QTimer@@UBEPBUQMetaObject@@XZ2C3 ??1Connection@QMetaObject@@QAE@XZB62 ?customEvent@QObject@@MAEXPAVQEvent@@@ZA65 ?connectNotify@QObject@@MAEXABVQMetaMethod@@@Z9A9 ?childEvent@QObject@@MAEXPAVQChildEvent@@@Z316 ??1QIODevicePrivate@@UAE@XZ11B ??0QIODevicePrivate@@QAE@XZ9D0 ?clear@QRingBuffer@@QAEXXZ1955 ?setErrorString@QIODevice@@IAEXABVQString@@@Z16EE ?readLineData@QIODevice@@MAE_JPAD_J@Z118 ??0QIODevice@@IAE@AAVQIODevicePrivate@@PAVQObject@@@Z944 ?canReadLine@QIODevice@@UBE_NXZ927 ?bytesToWrite@QIODevice@@UBE_JXZ922 ?bytesAvailable@QIODevice@@UBE_JXZ8AA ?atEnd@QIODevice@@UBE_NXZ9ED ?close@QIODevice@@UAEXXZ1444 ?open@QIODevice@@UAE_NV?$QFlags@W4OpenModeFlag@QIODevice@@@@@Z1149 ?isReadable@QIODevice@@QBE_NXZ1132 ?isOpen@QIODevice@@QBE_NXZ315 ??1QIODevice@@UAE@XZ15FA ?qt_metacall@QIODevice@@UAEHW4Call@QMetaObject@@HPAPAX@Z1637 ?qt_metacast@QIODevice@@UAEPAXPBD@ZCCB ?dynamicMetaObject@QObjectData@@QBEPAUQMetaObject@@XZ1126 ?isNull@QString@@QBE_NXZ453 ??4QString@@QAEAAV0@$$QAV0@@Z356 ??1QString@@QAE@XZ1FA ??0QString@@QAE@ABV0@@Z203 ??0QString@@QAE@XZ2E0 ??1QByteArray@@QAE@XZ58 ??0QByteArray@@QAE@HD@Z5C ??0QByteArray@@QAE@XZ7BA ?activate@QMetaObject@@SAXPAVQObject@@PBU1@HPAPAX@Z1E38 ?tr@QMetaObject@@QBE?AVQString@@PBD0H@Z1F9D ?warning@QMessageLogger@@QBAXPBDZZ16B ??0QMessageLogger@@QAE@PBDH0@Z4B ??0QBasicMutex@@QAE@XZ1BB8 ?staticMetaObject@QIODevice@@2UQMetaObject@@BSETUPAPI.dll1000927C Import Address Table1000CD90 Import Name Table0 time date stamp0 Index of first forwarder reference80 CM_Get_Parent52 CM_Get_DevNode_Status55 CM_Get_Device_IDW172 SetupDiGetDeviceRegistryPropertyW191 SetupDiOpenDevRegKey154 SetupDiGetClassDevsW13D SetupDiDestroyDeviceInfoList140 SetupDiEnumDeviceInfoADVAPI32.dll10009000 Import Address Table1000CB14 Import Name Table0 time date stamp0 Index of first forwarder reference25B RegCloseKey28C RegOpenKeyExW299 RegQueryValueExW27D RegEnumValueWMSVCP140.dll100090C4 Import Address Table1000CBD8 Import Name Table0 time date stamp0 Index of first forwarder reference28E ?_Xlength_error@std@@YAXPBD@ZKERNEL32.dll10009014 Import Address Table1000CB28 Import Name Table0 time date stamp0 Index of first forwarder referenceBF CreateEventW5D8 WaitForSingleObjectEx4C6 ResetEvent516 SetEvent110 DeleteCriticalSection35F InitializeCriticalSectionAndSpinCount3BD LeaveCriticalSection131 EnterCriticalSection4E1 SetCommTimeouts4E0 SetCommState4DF SetCommMask4DD SetCommBreak43E PurgeComm1D5 GetCommTimeouts2AE GetProcAddress1D2 GetCommModemStatus15D EscapeCommFunction84 ClearCommError83 ClearCommBreak57D Sleep580 SleepEx72 CancelIoEx11D DeviceIoControl532 SetLastError261 GetLastError86 CloseHandle613 WriteFileEx474 ReadFileExCB CreateFileW278 GetModuleHandleW37F IsDebuggerPresent5AD UnhandledExceptionFilter1D4 GetCommState386 IsProcessorFeaturePresent217 GetCurrentProcess58C TerminateProcess44D QueryPerformanceCounter218 GetCurrentProcessId21C GetCurrentThreadId2E9 GetSystemTimeAsFileTime11E DisableThreadLibraryCalls363 InitializeSListHead56D SetUnhandledExceptionFilterVCRUNTIME140.dll100092A0 Import Address Table1000CDB4 Import Name Table0 time date stamp0 Index of first forwarder reference46 memcpy1 _CxxThrowException10 __CxxFrameHandler347 memmove21 __std_exception_copy22 __std_exception_destroy48 memset35 _except_handler4_common25 __std_type_info_destroy_listapi-ms-win-crt-runtime-l1-1-0.dll100092D8 Import Address Table1000CDEC Import Name Table0 time date stamp0 Index of first forwarder reference19 _configure_narrow_argv35 _initialize_narrow_environment36 _initialize_onexit_table41 _seh_filter_dll24 _execute_onexit_table1F _crt_atexit17 _cexit38 _initterm39 _initterm_e3E _register_onexit_function3B _invalid_parameter_noinfo_noreturnapi-ms-win-crt-heap-l1-1-0.dll100092C8 Import Address Table1000CDDC Import Name Table0 time date stamp0 Index of first forwarder reference8 _callnewh19 malloc18 freeSummary1000 .data6000 .rdata1000 .reloc1000 .rsrc8000 .text

查看导出表，dumpbin.exe /EXPORTS Qt5SerialPort.dll

Microsoft (R) COFF/PE Dumper Version 14.29.30141.0
Copyright (C) Microsoft Corporation.  All rights reserved.Dump of file Qt5SerialPort.dllFile Type: DLLSection contains the following exports for Qt5SerialPort.dll00000000 characteristicsFFFFFFFF time date stamp0.00 version1 ordinal base95 number of functions95 number of namesordinal hint RVA      name1    0 00001010 ??0QSerialPort@@QAE@ABVQSerialPortInfo@@PAVQObject@@@Z2    1 00001080 ??0QSerialPort@@QAE@ABVQString@@PAVQObject@@@Z3    2 000010F0 ??0QSerialPort@@QAE@PAVQObject@@@Z4    3 00002AD0 ??0QSerialPortInfo@@AAE@ABVQSerialPortInfoPrivate@@@Z5    4 00002AF0 ??0QSerialPortInfo@@QAE@ABV0@@Z6    5 00002B30 ??0QSerialPortInfo@@QAE@ABVQSerialPort@@@Z7    6 00002B60 ??0QSerialPortInfo@@QAE@ABVQString@@@Z8    7 00002D70 ??0QSerialPortInfo@@QAE@XZ9    8 00001350 ??1QSerialPort@@UAE@XZ10    9 00002DF0 ??1QSerialPortInfo@@QAE@XZ11    A 00002E30 ??4QSerialPortInfo@@QAEAAV0@ABV0@@Z12    B 0000A524 ??_7QSerialPort@@6B@13    C 00001410 ??_FQSerialPort@@QAEXXZ14    D 000014A0 ?atEnd@QSerialPort@@UBE_NXZ15    E 00006220 ?availablePorts@QSerialPortInfo@@SA?AV?$QList@VQSerialPortInfo@@@@XZ16    F 000014B0 ?baudRate@QSerialPort@@QBEHV?$QFlags@W4Direction@QSerialPort@@@@@Z17   10 000014F0 ?baudRateChanged@QSerialPort@@QAEXHV?$QFlags@W4Direction@QSerialPort@@@@@Z18   11 00001540 ?breakEnabledChanged@QSerialPort@@QAEX_N@Z19   12 00001570 ?bytesAvailable@QSerialPort@@UBE_JXZ20   13 00001580 ?bytesToWrite@QSerialPort@@UBE_JXZ21   14 000015B0 ?canReadLine@QSerialPort@@UBE_NXZ22   15 000015C0 ?clear@QSerialPort@@QAE_NV?$QFlags@W4Direction@QSerialPort@@@@@Z23   16 00001670 ?clearError@QSerialPort@@QAEXXZ24   17 000016B0 ?close@QSerialPort@@UAEXXZ25   18 00001720 ?d_func@QSerialPort@@AAEPAVQSerialPortPrivate@@XZ26   19 00001720 ?d_func@QSerialPort@@ABEPBVQSerialPortPrivate@@XZ27   1A 00001730 ?d_func@QSerialPortInfo@@AAEPAVQSerialPortInfoPrivate@@XZ28   1B 00001730 ?d_func@QSerialPortInfo@@ABEPBVQSerialPortInfoPrivate@@XZ29   1C 00001740 ?dataBits@QSerialPort@@QBE?AW4DataBits@1@XZ30   1D 00001750 ?dataBitsChanged@QSerialPort@@QAEXW4DataBits@1@@Z31   1E 00001780 ?dataErrorPolicy@QSerialPort@@QBE?AW4DataErrorPolicy@1@XZ32   1F 00001790 ?dataErrorPolicyChanged@QSerialPort@@QAEXW4DataErrorPolicy@1@@Z33   20 000017C0 ?dataTerminalReadyChanged@QSerialPort@@QAEX_N@Z34   21 00002EA0 ?description@QSerialPortInfo@@QBE?AVQString@@XZ35   22 000017F0 ?error@QSerialPort@@QAEXW4SerialPortError@1@@Z36   23 00001820 ?error@QSerialPort@@QBE?AW4SerialPortError@1@XZ37   24 00001830 ?errorOccurred@QSerialPort@@QAEXW4SerialPortError@1@@Z38   25 00001860 ?flowControl@QSerialPort@@QBE?AW4FlowControl@1@XZ39   26 00001870 ?flowControlChanged@QSerialPort@@QAEXW4FlowControl@1@@Z40   27 000018A0 ?flush@QSerialPort@@QAE_NXZ41   28 00003BF0 ?handle@QSerialPort@@QBEPAXXZ42   29 00002F10 ?hasProductIdentifier@QSerialPortInfo@@QBE_NXZ43   2A 00002F20 ?hasVendorIdentifier@QSerialPortInfo@@QBE_NXZ44   2B 00001920 ?isBreakEnabled@QSerialPort@@QBE_NXZ45   2C 000072C0 ?isBusy@QSerialPortInfo@@QBE_NXZ46   2D 00001930 ?isDataTerminalReady@QSerialPort@@QAE_NXZ47   2E 00001950 ?isNull@QSerialPortInfo@@QBE_NXZ48   2F 00001960 ?isRequestToSend@QSerialPort@@QAE_NXZ49   30 00001980 ?isSequential@QSerialPort@@UBE_NXZ50   31 00007320 ?isValid@QSerialPortInfo@@QBE_NXZ51   32 00002F30 ?manufacturer@QSerialPortInfo@@QBE?AVQString@@XZ52   33 00001990 ?metaObject@QSerialPort@@UBEPBUQMetaObject@@XZ53   34 000019B0 ?open@QSerialPort@@UAE_NV?$QFlags@W4OpenModeFlag@QIODevice@@@@@Z54   35 00001AC0 ?parity@QSerialPort@@QBE?AW4Parity@1@XZ55   36 00001AD0 ?parityChanged@QSerialPort@@QAEXW4Parity@1@@Z56   37 00001B00 ?pinoutSignals@QSerialPort@@QAE?AV?$QFlags@W4PinoutSignal@QSerialPort@@@@XZ57   38 00001B90 ?portName@QSerialPort@@QBE?AVQString@@XZ58   39 00002FA0 ?portName@QSerialPortInfo@@QBE?AVQString@@XZ59   3A 00003000 ?productIdentifier@QSerialPortInfo@@QBEGXZ60   3B 00001BB0 ?qt_metacall@QSerialPort@@UAEHW4Call@QMetaObject@@HPAPAX@Z61   3C 00001C70 ?qt_metacast@QSerialPort@@UAEPAXPBD@Z62   3D 00001CD0 ?qt_static_metacall@QSerialPort@@CAXPAVQObject@@W4Call@QMetaObject@@HPAPAX@Z63   3E 00002110 ?readBufferSize@QSerialPort@@QBE_JXZ64   3F 00002120 ?readData@QSerialPort@@MAE_JPAD_J@Z65   40 00002130 ?readLineData@QSerialPort@@MAE_JPAD_J@Z66   41 00002150 ?requestToSendChanged@QSerialPort@@QAEX_N@Z67   42 00002180 ?sendBreak@QSerialPort@@QAE_NH@Z68   43 00003010 ?serialNumber@QSerialPortInfo@@QBE?AVQString@@XZ69   44 00002210 ?setBaudRate@QSerialPort@@QAE_NHV?$QFlags@W4Direction@QSerialPort@@@@@Z70   45 000022F0 ?setBreakEnabled@QSerialPort@@QAE_N_N@Z71   46 000023D0 ?setDataBits@QSerialPort@@QAE_NW4DataBits@1@@Z72   47 00002450 ?setDataErrorPolicy@QSerialPort@@QAE_NW4DataErrorPolicy@1@@Z73   48 00002520 ?setDataTerminalReady@QSerialPort@@QAE_N_N@Z74   49 00002690 ?setFlowControl@QSerialPort@@QAE_NW4FlowControl@1@@Z75   4A 00002710 ?setParity@QSerialPort@@QAE_NW4Parity@1@@Z76   4B 00002790 ?setPort@QSerialPort@@QAEXABVQSerialPortInfo@@@Z77   4C 000027C0 ?setPortName@QSerialPort@@QAEXABVQString@@@Z78   4D 000027F0 ?setReadBufferSize@QSerialPort@@QAEX_J@Z79   4E 00002820 ?setRequestToSend@QSerialPort@@QAE_N_N@Z80   4F 00002920 ?setSettingsRestoredOnClose@QSerialPort@@QAEX_N@Z81   50 00002970 ?setStopBits@QSerialPort@@QAE_NW4StopBits@1@@Z82   51 000029F0 ?settingsRestoredOnClose@QSerialPort@@QBE_NXZ83   52 00002A00 ?settingsRestoredOnCloseChanged@QSerialPort@@QAEX_N@Z84   53 00003080 ?standardBaudRates@QSerialPortInfo@@SA?AV?$QList@H@@XZ85   54 0000F000 ?staticMetaObject@QSerialPort@@2UQMetaObject@@B86   55 00002A30 ?stopBits@QSerialPort@@QBE?AW4StopBits@1@XZ87   56 00002A40 ?stopBitsChanged@QSerialPort@@QAEXW4StopBits@1@@Z88   57 000030A0 ?swap@QSerialPortInfo@@QAEXAAV1@@Z89   58 000030C0 ?systemLocation@QSerialPortInfo@@QBE?AVQString@@XZ90   59 00002A70 ?tr@QSerialPort@@SA?AVQString@@PBD0H@Z91   5A 00002A70 ?trUtf8@QSerialPort@@SA?AVQString@@PBD0H@Z92   5B 00003130 ?vendorIdentifier@QSerialPortInfo@@QBEGXZ93   5C 00002A90 ?waitForBytesWritten@QSerialPort@@UAE_NH@Z94   5D 00002AA0 ?waitForReadyRead@QSerialPort@@UAE_NH@Z95   5E 00002AB0 ?writeData@QSerialPort@@MAE_JPBD_J@ZSummary1000 .data6000 .rdata1000 .reloc1000 .rsrc8000 .text

4、命令行工具 objdump

objdump工具可以解析PE格式，提取header信息，以及导入导出表等信息。

$ objdump
Usage: C:\MinGW\bin\objdump.exe <option(s)> <file(s)>Display information from object <file(s)>.At least one of the following switches must be given:-a, --archive-headers    Display archive header information-f, --file-headers       Display the contents of the overall file header-p, --private-headers    Display object format specific file header contents-P, --private=OPT,OPT... Display object format specific contents-h, --[section-]headers  Display the contents of the section headers-x, --all-headers        Display the contents of all headers-d, --disassemble        Display assembler contents of executable sections-D, --disassemble-all    Display assembler contents of all sections-S, --source             Intermix source code with disassembly-s, --full-contents      Display the full contents of all sections requested-g, --debugging          Display debug information in object file-e, --debugging-tags     Display debug information using ctags style-G, --stabs              Display (in raw form) any STABS info in the file-W[lLiaprmfFsoRt] or--dwarf[=rawline,=decodedline,=info,=abbrev,=pubnames,=aranges,=macro,=frames,=frames-interp,=str,=loc,=Ranges,=pubtypes,=gdb_index,=trace_info,=trace_abbrev,=trace_aranges,=addr,=cu_index]Display DWARF info in the file-t, --syms               Display the contents of the symbol table(s)-T, --dynamic-syms       Display the contents of the dynamic symbol table-r, --reloc              Display the relocation entries in the file-R, --dynamic-reloc      Display the dynamic relocation entries in the file@<file>                  Read options from <file>-v, --version            Display this program's version number-i, --info               List object formats and architectu

比如导入表信息，可以看到依赖的库信息。

D:\个人资料\OD\license_study>objdump -p main.exeThere is an import table in .idata at 0x408000The Import Tables (interpreted .idata section contents)vma:            Hint    Time      Forward  DLL       FirstTable   Stamp     Chain    Name      Thunk00008000       00008064 00000000 00000000 00008568 0000814cDLL Name: KERNEL32.dllvma:  Hint/Ord Member-Name Bound-To8234      207  DeleteCriticalSection824c      236  EnterCriticalSection8264      279  ExitProcess8272      300  FindClose827e      304  FindFirstFileA8290      321  FindNextFileA82a0      352  FreeLibrary82ae      388  GetCommandLineA82c0      510  GetLastError82d0      529  GetModuleHandleA82e4      577  GetProcAddress82f6      734  InitializeCriticalSection8312      814  LeaveCriticalSection832a      817  LoadLibraryA833a     1140  SetUnhandledExceptionFilter8358     1173  TlsGetValue8366     1213  VirtualProtect8378     1215  VirtualQuery00008014       000080b0 00000000 00000000 00008580 00008198DLL Name: msvcrt.dllvma:  Hint/Ord Member-Name Bound-To8388       80  _strdup8392       82  _stricoll00008028       000080bc 00000000 00000000 00008610 000081a4DLL Name: msvcrt.dllvma:  Hint/Ord Member-Name Bound-To839e       88  __getmainargs83ae      119  __mb_cur_max83be      131  __p__environ83ce      133  __p__fmode83dc      153  __set_app_type83ee      219  _cexit83f8      285  _errno8402      324  _fpreset840e      350  _fullpath841a      417  _iob8422      422  _isctype842e      689  _onexit8438      698  _pctype8442      753  _setmode844e     1083  abort8456     1091  atexit8460     1098  calloc846a     1131  free8472     1142  fwrite847c     1187  malloc8486     1194  mbstowcs8492     1199  memcpy849c     1208  printf84a6     1211  putchar84b0     1212  puts84b8     1220  realloc84c2     1227  setlocale84ce     1229  signal84d8     1242  strcoll84e2     1249  strlen84ec     1277  tolower84f6     1284  vfprintf8502     1325  wcstombs0000803c       00008144 00000000 00000000 00008620 0000822cDLL Name: license.dllvma:  Hint/Ord Member-Name Bound-To8510        0  get_license00008050       00000000 00000000 00000000 00000000 00000000

看到header信息

main.exe:     file format pei-i386Characteristics 0x107relocations strippedexecutableline numbers stripped32 bit wordsTime/Date               Tue Feb 06 15:38:57 2024
Magic                   010b    (PE32)
MajorLinkerVersion      2
MinorLinkerVersion      28
SizeOfCode              00003000
SizeOfInitializedData   00004e00
SizeOfUninitializedData 00000200
AddressOfEntryPoint     000012e0
BaseOfCode              00001000
BaseOfData              00004000
ImageBase               00400000
SectionAlignment        00001000
FileAlignment           00000200
MajorOSystemVersion     4
MinorOSystemVersion     0
MajorImageVersion       1
MinorImageVersion       0
MajorSubsystemVersion   4
MinorSubsystemVersion   0
Win32Version            00000000
SizeOfImage             00011000
SizeOfHeaders           00000400
CheckSum                00013a06
Subsystem               00000003        (Windows CUI)
DllCharacteristics      00000000
SizeOfStackReserve      00200000
SizeOfStackCommit       00001000
SizeOfHeapReserve       00100000
SizeOfHeapCommit        00001000
LoaderFlags             00000000
NumberOfRvaAndSizes     00000010

二、ELF格式下面查看依赖

1、readelf工具

比如刚刚那个a.out文件，可以通过readelf 可以查看依赖，方便定位问题。
readelf -d xxxx.elf 文件，-d用来显示动态的section，即依赖的动态链接库。
在这里插入图片描述
示例操作：可以看到a.out除了依赖libtest.so，还依赖libc库。

readelf 这个工具是命令行工具，用来解析elf文件格式，linux下面也可以使用。

2、objdump工具

windows下面解析PE格式文件，linux下面解析elf文件格式，很方便的跨平台工具，windows下面mingw的一个工具。
在这里插入图片描述
当然同elf文件一样，也可以解析header，symbol，section等信息。

a.out:     file format elf64-little
a.out
architecture: UNKNOWN!, flags 0x00000112:
EXEC_P, HAS_SYMS, D_PAGED
start address 0x0000000000400810Program Header:PHDR off    0x0000000000000040 vaddr 0x0000000000400040 paddr 0x0000000000400040 align 2**3filesz 0x0000000000000188 memsz 0x0000000000000188 flags r-xINTERP off    0x00000000000001c8 vaddr 0x00000000004001c8 paddr 0x00000000004001c8 align 2**0filesz 0x000000000000001b memsz 0x000000000000001b flags r--LOAD off    0x0000000000000000 vaddr 0x0000000000400000 paddr 0x0000000000400000 align 2**16filesz 0x0000000000000a7c memsz 0x0000000000000a7c flags r-xLOAD off    0x0000000000000a80 vaddr 0x0000000000410a80 paddr 0x0000000000410a80 align 2**16filesz 0x0000000000000278 memsz 0x00000000000002c0 flags rw-DYNAMIC off    0x0000000000000a98 vaddr 0x0000000000410a98 paddr 0x0000000000410a98 align 2**3filesz 0x00000000000001e0 memsz 0x00000000000001e0 flags rw-NOTE off    0x00000000000001e4 vaddr 0x00000000004001e4 paddr 0x00000000004001e4 align 2**2filesz 0x0000000000000044 memsz 0x0000000000000044 flags r--STACK off    0x0000000000000000 vaddr 0x0000000000000000 paddr 0x0000000000000000 align 2**4filesz 0x0000000000000000 memsz 0x0000000000000000 flags rw-Dynamic Section:NEEDED               libtest.soNEEDED               libc.so.6INIT                 0x0000000000400740FINI                 0x0000000000400a40INIT_ARRAY           0x0000000000410a80INIT_ARRAYSZ         0x0000000000000008FINI_ARRAY           0x0000000000410a88FINI_ARRAYSZ         0x0000000000000008HASH                 0x0000000000400228STRTAB               0x00000000004004e0SYMTAB               0x00000000004002d0STRSZ                0x0000000000000123SYMENT               0x0000000000000018DEBUG                0x0000000000000000PLTGOT               0x0000000000410c88PLTRELSZ             0x00000000000000d8PLTREL               0x0000000000000007JMPREL               0x0000000000400668RELA                 0x0000000000400650RELASZ               0x0000000000000018RELAENT              0x0000000000000018VERNEED              0x0000000000400630VERNEEDNUM           0x0000000000000001VERSYM               0x0000000000400604Version References:required from libc.so.6:0x06969197 0x00 02 GLIBC_2.17Sections:
Idx Name          Size      VMA               LMA               File off  Algn0 .interp       0000001b  00000000004001c8  00000000004001c8  000001c8  2**0CONTENTS, ALLOC, LOAD, READONLY, DATA1 .note.ABI-tag 00000020  00000000004001e4  00000000004001e4  000001e4  2**2CONTENTS, ALLOC, LOAD, READONLY, DATA2 .note.gnu.build-id 00000024  0000000000400204  0000000000400204  00000204  2**2CONTENTS, ALLOC, LOAD, READONLY, DATA3 .hash         000000a4  0000000000400228  0000000000400228  00000228  2**3CONTENTS, ALLOC, LOAD, READONLY, DATA4 .dynsym       00000210  00000000004002d0  00000000004002d0  000002d0  2**3CONTENTS, ALLOC, LOAD, READONLY, DATA5 .dynstr       00000123  00000000004004e0  00000000004004e0  000004e0  2**0CONTENTS, ALLOC, LOAD, READONLY, DATA6 .gnu.version  0000002c  0000000000400604  0000000000400604  00000604  2**1CONTENTS, ALLOC, LOAD, READONLY, DATA7 .gnu.version_r 00000020  0000000000400630  0000000000400630  00000630  2**3CONTENTS, ALLOC, LOAD, READONLY, DATA8 .rela.dyn     00000018  0000000000400650  0000000000400650  00000650  2**3CONTENTS, ALLOC, LOAD, READONLY, DATA9 .rela.plt     000000d8  0000000000400668  0000000000400668  00000668  2**3CONTENTS, ALLOC, LOAD, READONLY, DATA10 .init         00000014  0000000000400740  0000000000400740  00000740  2**2CONTENTS, ALLOC, LOAD, READONLY, CODE11 .plt          000000b0  0000000000400760  0000000000400760  00000760  2**4CONTENTS, ALLOC, LOAD, READONLY, CODE12 .text         00000230  0000000000400810  0000000000400810  00000810  2**3CONTENTS, ALLOC, LOAD, READONLY, CODE13 .fini         00000010  0000000000400a40  0000000000400a40  00000a40  2**2CONTENTS, ALLOC, LOAD, READONLY, CODE14 .rodata       00000028  0000000000400a50  0000000000400a50  00000a50  2**3CONTENTS, ALLOC, LOAD, READONLY, DATA15 .eh_frame     00000004  0000000000400a78  0000000000400a78  00000a78  2**2CONTENTS, ALLOC, LOAD, READONLY, DATA16 .init_array   00000008  0000000000410a80  0000000000410a80  00000a80  2**3CONTENTS, ALLOC, LOAD, DATA17 .fini_array   00000008  0000000000410a88  0000000000410a88  00000a88  2**3CONTENTS, ALLOC, LOAD, DATA18 .jcr          00000008  0000000000410a90  0000000000410a90  00000a90  2**3CONTENTS, ALLOC, LOAD, DATA19 .dynamic      000001e0  0000000000410a98  0000000000410a98  00000a98  2**3CONTENTS, ALLOC, LOAD, DATA20 .got          00000010  0000000000410c78  0000000000410c78  00000c78  2**3CONTENTS, ALLOC, LOAD, DATA21 .got.plt      00000060  0000000000410c88  0000000000410c88  00000c88  2**3CONTENTS, ALLOC, LOAD, DATA22 .data         00000010  0000000000410ce8  0000000000410ce8  00000ce8  2**3CONTENTS, ALLOC, LOAD, DATA23 .bss          00000048  0000000000410cf8  0000000000410cf8  00000cf8  2**3ALLOC24 .comment      0000002f  0000000000000000  0000000000000000  00000cf8  2**0CONTENTS, READONLY25 .debug_aranges 00000110  0000000000000000  0000000000000000  00000d30  2**4CONTENTS, READONLY, DEBUGGING26 .debug_info   00000452  0000000000000000  0000000000000000  00000e40  2**0CONTENTS, READONLY, DEBUGGING27 .debug_abbrev 00000183  0000000000000000  0000000000000000  00001292  2**0CONTENTS, READONLY, DEBUGGING28 .debug_line   0000028a  0000000000000000  0000000000000000  00001415  2**0CONTENTS, READONLY, DEBUGGING29 .debug_frame  00000068  0000000000000000  0000000000000000  000016a0  2**3CONTENTS, READONLY, DEBUGGING30 .debug_str    0000026c  0000000000000000  0000000000000000  00001708  2**0CONTENTS, READONLY, DEBUGGING31 .debug_loc    00000143  0000000000000000  0000000000000000  00001974  2**0CONTENTS, READONLY, DEBUGGING32 .debug_ranges 000000d0  0000000000000000  0000000000000000  00001ac0  2**4CONTENTS, READONLY, DEBUGGING
SYMBOL TABLE:
00000000004001c8 l    d  .interp        0000000000000000              .interp
00000000004001e4 l    d  .note.ABI-tag  0000000000000000              .note.ABI-tag
0000000000400204 l    d  .note.gnu.build-id     0000000000000000              .note.gnu.build-id
0000000000400228 l    d  .hash  0000000000000000              .hash
00000000004002d0 l    d  .dynsym        0000000000000000              .dynsym
00000000004004e0 l    d  .dynstr        0000000000000000              .dynstr
0000000000400604 l    d  .gnu.version   0000000000000000              .gnu.version
0000000000400630 l    d  .gnu.version_r 0000000000000000              .gnu.version_r
0000000000400650 l    d  .rela.dyn      0000000000000000              .rela.dyn
0000000000400668 l    d  .rela.plt      0000000000000000              .rela.plt
0000000000400740 l    d  .init  0000000000000000              .init
0000000000400760 l    d  .plt   0000000000000000              .plt
0000000000400810 l    d  .text  0000000000000000              .text
0000000000400a40 l    d  .fini  0000000000000000              .fini
0000000000400a50 l    d  .rodata        0000000000000000              .rodata
0000000000400a78 l    d  .eh_frame      0000000000000000              .eh_frame
0000000000410a80 l    d  .init_array    0000000000000000              .init_array
0000000000410a88 l    d  .fini_array    0000000000000000              .fini_array
0000000000410a90 l    d  .jcr   0000000000000000              .jcr
0000000000410a98 l    d  .dynamic       0000000000000000              .dynamic
0000000000410c78 l    d  .got   0000000000000000              .got
0000000000410c88 l    d  .got.plt       0000000000000000              .got.plt
0000000000410ce8 l    d  .data  0000000000000000              .data
0000000000410cf8 l    d  .bss   0000000000000000              .bss
0000000000000000 l    d  .comment       0000000000000000              .comment
0000000000000000 l    d  .debug_aranges 0000000000000000              .debug_aranges
0000000000000000 l    d  .debug_info    0000000000000000              .debug_info
0000000000000000 l    d  .debug_abbrev  0000000000000000              .debug_abbrev
0000000000000000 l    d  .debug_line    0000000000000000              .debug_line
0000000000000000 l    d  .debug_frame   0000000000000000              .debug_frame
0000000000000000 l    d  .debug_str     0000000000000000              .debug_str
0000000000000000 l    d  .debug_loc     0000000000000000              .debug_loc
0000000000000000 l    d  .debug_ranges  0000000000000000              .debug_ranges
0000000000000000 l    df *ABS*  0000000000000000              /home/tcwg-buildslave/workspace/tcwg-make-release/label/tcwg-x86_64-ex40/target/aarch64-linux-gnu/_build/builds/x86_64-unknown-linux-gnu/aarch64-linux-gnu/glibc.git~release-2.21-master/csu/abi-note.o
00000000004001e4 l       .note.ABI-tag  0000000000000000              $d
0000000000000000 l    df *ABS*  0000000000000000              /home/tcwg-buildslave/workspace/tcwg-make-release/label/tcwg-x86_64-ex40/target/aarch64-linux-gnu/_build/builds/x86_64-unknown-linux-gnu/aarch64-linux-gnu/glibc.git~release-2.21-master/csu/start.o
0000000000400810 l       .text  0000000000000000              $x
000000000040083c l       .text  0000000000000000              $d
000000000000000c l       .debug_aranges 0000000000000000              $d
0000000000000000 l    df *ABS*  0000000000000000              init.c
0000000000400a50 l       .rodata        0000000000000000              $d
0000000000000000 l    df *ABS*  0000000000000000              /home/guoqing.zhang/gcc-linaro-5.2-2015.11-2-x86_64_aarch64-linux-gnu/bin/../aarch64-linux-gnu/libc/usr/lib/crti.o
0000000000400858 l       .text  0000000000000000              $x
0000000000400858 l     F .text  0000000000000014              call_weak_fn
0000000000400740 l       .init  0000000000000000              $x
0000000000400a40 l       .fini  0000000000000000              $x
000000000000005c l       .debug_aranges 0000000000000000              $d
0000000000000000 l    df *ABS*  0000000000000000              /home/guoqing.zhang/gcc-linaro-5.2-2015.11-2-x86_64_aarch64-linux-gnu/bin/../aarch64-linux-gnu/libc/usr/lib/crtn.o
000000000040074c l       .init  0000000000000000              $x
0000000000400a48 l       .fini  0000000000000000              $x
00000000000000dc l       .debug_aranges 0000000000000000              $d
0000000000000000 l    df *ABS*  0000000000000000              crtstuff.c
0000000000410a90 l     O .jcr   0000000000000000              __JCR_LIST__
0000000000400870 l       .text  0000000000000000              $x
0000000000400870 l     F .text  0000000000000000              deregister_tm_clones
00000000004008a8 l       .text  0000000000000000              $d
00000000004008b0 l       .text  0000000000000000              $x
00000000004008b0 l     F .text  0000000000000000              register_tm_clones
00000000004008e8 l       .text  0000000000000000              $d
0000000000410cf0 l       .data  0000000000000000              $d
00000000004008f0 l       .text  0000000000000000              $x
00000000004008f0 l     F .text  0000000000000000              __do_global_dtors_aux
0000000000410cf8 l     O .bss   0000000000000001              completed.7262
0000000000410a88 l       .fini_array    0000000000000000              $d
0000000000410a88 l     O .fini_array    0000000000000000              __do_global_dtors_aux_fini_array_entry
0000000000400920 l     F .text  0000000000000000              frame_dummy
0000000000400958 l       .text  0000000000000000              $d
0000000000410a80 l       .init_array    0000000000000000              $d
0000000000410a80 l     O .init_array    0000000000000000              __frame_dummy_init_array_entry
0000000000410cf8 l       .bss   0000000000000000              $d
0000000000000000 l    df *ABS*  0000000000000000              hello.c
0000000000400a58 l       .rodata        0000000000000000              $d
0000000000400960 l       .text  0000000000000000              $x
0000000000000000 l    df *ABS*  0000000000000000              elf-init.c
00000000004009c0 l       .text  0000000000000000              $x
0000000000000010 l       .debug_frame   0000000000000000              $d
0000000000000000 l    df *ABS*  0000000000000000              crtstuff.c
0000000000400a78 l       .eh_frame      0000000000000000              $d
0000000000400a78 l     O .eh_frame      0000000000000000              __FRAME_END__
0000000000410a90 l       .jcr   0000000000000000              $d
0000000000410a90 l     O .jcr   0000000000000000              __JCR_END__
0000000000000000 l    df *ABS*  0000000000000000
0000000000410a88 l       .init_array    0000000000000000              __init_array_end
0000000000410a98 l     O .dynamic       0000000000000000              _DYNAMIC
0000000000410a80 l       .init_array    0000000000000000              __init_array_start
0000000000410c78 l     O .got   0000000000000000              _GLOBAL_OFFSET_TABLE_
0000000000400780 l       .plt   0000000000000000              $x
0000000000400a38 g     F .text  0000000000000004              __libc_csu_fini
0000000000000000  w      *UND*  0000000000000000              _ITM_deregisterTMCloneTable
0000000000410ce8  w      .data  0000000000000000              data_start
0000000000410cf8 g       .bss   0000000000000000              __bss_start__
0000000000410d40 g       .bss   0000000000000000              _bss_end__
0000000000410cf8 g       .data  0000000000000000              _edata
0000000000400a40 g     F .fini  0000000000000000              _fini
0000000000410d40 g       .bss   0000000000000000              __bss_end__
0000000000400780       F *UND*  0000000000000000              __libc_start_main@@GLIBC_2.17
0000000000400790       F *UND*  0000000000000000              test_func
0000000000410ce8 g       .data  0000000000000000              __data_start
00000000004007a0       F *UND*  0000000000000000              pthread_mutex_init@@GLIBC_2.17
0000000000000000  w      *UND*  0000000000000000              __gmon_start__
0000000000410cf0 g     O .data  0000000000000000              .hidden __dso_handle
00000000004007c0       F *UND*  0000000000000000              abort@@GLIBC_2.17
0000000000400a50 g     O .rodata        0000000000000004              _IO_stdin_used
0000000000410d00 g     O .bss   0000000000000040              data
00000000004007d0       F *UND*  0000000000000000              puts@@GLIBC_2.17
00000000004009c0 g     F .text  0000000000000078              __libc_csu_init
0000000000410d40 g       .bss   0000000000000000              _end
0000000000400810 g     F .text  0000000000000000              _start
0000000000410d40 g       .bss   0000000000000000              __end__
0000000000410cf8 g       .bss   0000000000000000              __bss_start
0000000000400960 g     F .text  0000000000000060              main
0000000000000000  w      *UND*  0000000000000000              _Jv_RegisterClasses
0000000000410cf8 g     O .data  0000000000000000              .hidden __TMC_END__
0000000000000000  w      *UND*  0000000000000000              _ITM_registerTMCloneTable
00000000004007e0       F *UND*  0000000000000000              printf@@GLIBC_2.17
00000000004007f0       F *UND*  0000000000000000              pthread_mutex_lock@@GLIBC_2.17
0000000000400740 g     F .init  0000000000000000              _init
0000000000400800       F *UND*  0000000000000000              pthread_mutex_unlock@@GLIBC_2.17