这篇博客介绍了Linux系统中用于理解和操作对象文件的各种工具，包括ar、strings、strip、nm、size、readelf和objdump。这些工具主要用于创建静态库、提取字符串、删除符号表信息、列出符号、查看大小以及全面分析对象文件结构。此外，还提到了ldd程序，它用于处理运行时所需的共享库。
Tools for Manipulating Object Files
There are a number of tools available on Linux systems to help you understand and manipulate object files. In particular, the GNU binutils package is especially helpful and runs on every Linux platform.
- ar. Creates static libraries, and inserts, deletes, lists, and extracts members.
- strings. Lists all of the printable strings contained in an object file.
- strip. Deletes symbol table information from an object file.
- nm. Lists the symbols defined in the symbol table of an object file.
- size. Lists the names and sizes of the sections in an object file.
- readelf. Displays the complete structure of an object file, including all of the information encoded in the ELF header. Subsumes the functionality of size and nm.
objdump. The mother of all binary tools.Can display all of the informationinan object
file. Its most useful function is disassembling the binary instructions in the.textsection.
Linux systems also provide the ldd program for manipulating shared libraries:
ldd: Lists the shared libraries that an executable needs at run time.
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