gdb load symbol table

Load so symbol table

(1) info sharedlibrary -- query symbol table address

(2) add-symbol-file /usr/local/lib/libxxx.so.debug 0x0000effe421d26a0

The loaded address is the address found by the first command.

load process symbol table

(1) gdb

(2) file /usr/local/lib/xxx.debug

(3) attach pid        // pid  is the process id