Awesome

pyn

Awesome Python bindings for Pintool. Pyn aims to offer an extremely easy API for quickly writing Pintools.

Pyn features a raw API close to the original Pintool API as well as a more Pythonic API. It's important to understand that Pyn hides various aspects of regular Pintools, allowing one to make full-featured Pintools in just a handful lines of code.

Pintool has several callback functions, e.g., the one registered by calling INS_AddInstrumentFunction. As an example for a normal Pintool, take the following piece of C code.

#include <stdio.h>
#include "pin.H"

void instructions(INS ins, void *v)
{
    printf("-> %s\n", INS_Disassemble(ins).c_str());
}

int main(int argc, char *argv[])
{
    PIN_Init(argc, argv);

    INS_AddInstrumentFunction(&instructions, NULL);

    PIN_StartProgram();
    return 0;
}

This is already a complete Pintool. However, when writing Pintools time after time, each for its own specific purpose, this boilerplate code becomes repetitive. Hence the Pintool from above can be rewritten using Pyn to just the following few lines of code.

def instr(ins):
    print INS_Disassemble(ins)

Or, when using the extended Pythonic API, we do the following. (More on that later.)

def instr2(ins):
    print ins.disasm

Documentation

Currently there is no documentation for Pyn yet, as it's still under heavy development. However, more examples and documentation are planned as development continues and a more well-tested version of Pyn is being released.

Binaries

Given Pintools are fairly annoying to compile by themselves, not even starting about compiling Python with them, I plan on releasing binaries later on. Currently I only have 32-bit Windows binaries as I'm still struggling with linux builds and 64-bit Windows builds, but let's wait and see.