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We can use the readelf command with the -s flag to view exported symbols: $ readelf -s lib.so Symbol table '.
Try adding -l to the nm flags in order to get the source of each symbol. If the library is compiled with debugging info (gcc -g) this should be the source file and line number.
A symbol library is a collection of symbols. Typically the symbols in a symbol library belong to a specific group or correspond to a specific standard. Symbol libraries can be stored in a project or in a master data pool.
man 1 nm
https://web.archive.org/web/20160316222941/https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/man1/nm.1.html
For example:
nm -gU /usr/local/Cellar/cairo/1.12.16/lib/cairo/libcairo-trace.0.dylib
Use otool:
otool -TV your.dylib
OR
nm -g your.dylib
Use nm -a your.dylib
It will print all the symbols including globals
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