Getting mangled name from demangled name

c++ g++ name-mangling
Prasoon Saurav picture Prasoon Saurav · Sep 13, 2012 · Viewed 19.3k times · Source

Is there any way to get back the mangled name from demangled name in g++.

For example , I have the demangled name func(char*, int), what should I do to get the mangled name i.e _Z4funcPci back?

My question is g++ specific.

Answer

Bojan Nikolic picture Bojan Nikolic · Sep 13, 2012

You can simply use g++ to compile an empty function with the signature you require and extract the name from that. For example:

echo "int f1(char *, int) {} " | g++ -x c++ -S - -o- | grep "^_.*:$" | sed -e 's/:$//'

gives output

_Z2f1Pci

which is I think what you require. Make sure that you include any relevant header files as they will affect the way the symbols are mangled.

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