Was executable compiled with debugging info?

How can you check if a Linux executable was compiled with 开发者_如何学Pythonsymbolic debugging info?

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Quickest solution I can think of: Load it with GDB:

gdb myexecutable

You should get something like "(no debugging symbols found)" if there aren't any usable symbols inside.

Update: To return control to shell (or whatever) add --batch:

gdb myexecutable --batch

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Not sure, because I'm on OSX right now, but maybe file shows if it contains symbols or not.