dinggul/udftrace

user defined function tracer

UDFTrace

User defined function tracer

Currently for x86-64.

Prerequisites

• Python2

• PyYAML

• libyaml-cpp-dev (0.5.2)

• libboost-dev

• Pin

  sudo pip2 install pyyaml colorlog sudo apt install libboost-dev libyaml-cpp-dev ./install_pin.sh

Test

./pin*/pin -t src/obj-intel64/UDFTrace.so -i ./test/spec2 -- ./test/test2

Intermediate trace format

struct type {
    uint8_t kind;       // argument type.
    uint8_t location;   // argument location (stack or register).
    uint16_t stack_ofs; // used for stack arguments.
    uint32_t mem_size;  // used for memory arguments.
};

struct func {
    uint64_t addr;
    uint32_t nargs;
    struct type ret_ty;
    struct type arg_ty[0]; // 'nargs' elements.
};

Credits

made by dinggul, blukat29