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mac os otool

mac os otool

作者: 王国的荣耀 | 来源:发表于2022-04-08 18:57 被阅读0次

Mac OS X下可执行文件的动态链接库是*.dylib文件。而dylib等同于windows的dll和linux的so。
Linux下用ldd查看依赖的相关库,ldd是list, dynamic, dependencies的缩写。
在mac os 中使用的otool。

otool 命令查看

Usage: otool [-arch arch_type] [-fahlLDtdorSTMRIHGvVcXmqQjCP] [-mcpu=arg] [--version] <object file> ...
    -f print the fat headers
    -a print the archive header
    -h print the mach header
    -l print the load commands
    -L print shared libraries used
    -D print shared library id name
    -t print the text section (disassemble with -v)
    -x print all text sections (disassemble with -v)
    -p <routine name>  start dissassemble from routine name
    -s <segname> <sectname> print contents of section
    -d print the data section
    -o print the Objective-C segment
    -r print the relocation entries
    -S print the table of contents of a library (obsolete)
    -T print the table of contents of a dynamic shared library (obsolete)
    -M print the module table of a dynamic shared library (obsolete)
    -R print the reference table of a dynamic shared library (obsolete)
    -I print the indirect symbol table
    -H print the two-level hints table (obsolete)
    -G print the data in code table
    -v print verbosely (symbolically) when possible
    -V print disassembled operands symbolically
    -c print argument strings of a core file
    -X print no leading addresses or headers
    -m don't use archive(member) syntax
    -B force Thumb disassembly (ARM objects only)
    -q use llvm's disassembler (the default)
    -Q use otool(1)'s disassembler
    -mcpu=arg use `arg' as the cpu for disassembly
    -j print opcode bytes
    -P print the info plist section as strings
    -C print linker optimization hints
    --version print the version of otool

## otool 相关命令

otool -L ./main
./main:
/usr/lib/libSystem.B.dylib (compatibility version 0.0.0, current version 0.0.0)
/System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation (compatibility version 0.0.0, current version 0.0.0)
/System/Library/Frameworks/Security.framework/Versions/A/Security (compatibility version 0.0.0, current version 0.0.0)


如果使用 otool -tV ex 则整个ARM的汇编码就都显示出来了。


## 参考
https://www.jianshu.com/p/fc67f95eee41

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