nim_callgrind

A small utility to demangle Nim symbols from callgrind files.

Usage

Run your (Nim) program with something like this:

valgrind --tool=callgrind executable

Then generate a demangled output file with:

python nim_callgrind.py INPUT_FILE OUTPUT_FILE

Features

• Tries to detect Nim procedures, ignores everything else.
• Detects passed-by-value and passed-by-reference types.
• Extracts proper function names.
• Extracts module names (added between [] afterwards).

TODO

• Port the utility Nim once stabilized :)
• Add support for missing Nim types.
• Figure out better demangling, if possible.
• Test with more callgrind files.

Example