hack_malloc

Fun with malloc() and free(). Tested on Linux and macOS.

• hack_malloc.c - super inefficient but working implementation.
• override_malloc.c - demonstration how to intercept malloc() and free().
• trace_malloc.c - advanced heap interceptor which writes the log to disk.
• model.py - Keras RNN model which predicts malloc() and free() taking the log from libtracemalloc.so as the input.

Статьи на русском: 1, 2.

How to build

Linux:

make -f Makefile.linux

Mac OS X:

make -f cp Makefile.darwin

How to run

./test

python3 model.py --input log.txt.gz --epochs 1 --type GRU --validation 0.15

How to inject

Linux:

LD_PRELOAD=/path/to/liboverridemalloc.so ./program

Mac OS X:

DYLD_INSERT_LIBRARIES=/path/to/liboverridemalloc.dylib DYLD_FORCE_FLAT_NAMESPACE=1 ./program

Note for Mac OS X: due to SIP, programs at /usr/bin, e.g., ls, are not going to be affected.

License

MIT license.