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Compile, connect -- Notes

2022-04-23 15:53:00 【wishfly】

1 linux Symbols for programs and libraries ,Linux Dynamic library （.so） The symbol table

linux Symbols for programs and libraries ,Linux Dynamic library （.so） The symbol table _weixin_39528029 The blog of -CSDN Blog

1.1. Dynamic link library The symbol table of

Dynamic link library (shared object library) stay linux Li Yi .so ending , yes elf(Executable and Linkable Format) A kind of document , There are two The symbol table ：“.symtab” and “.dynsym”.

.symtab：

It contains a lot of information ( Including global symbols global symbols)

.dynsym：

Only keep “.symtab” Global symbols in

so “.dynsym” Can be regarded as “.symtab” Subset .

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