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Requirements

• Supported OS: uname -a Linux dev.local 3.19.0-49-generic #55-Ubuntu SMP Fri Jan 22 02:09:44 UTC 2016 i686 i686 i686 GNU/Linux

• ASLR Disabled echo 0 | sudo tee /proc/sys/kernel/randomize_va_space

  kernel.randomize_va_space = 0 #in /etc/sysctl.d/01-disable-aslr.conf

• Disable VDSO Adding the kernel parameter vdso=0 in /etc/default/grub

• Python 2.7.9

Installation

1. Clone CrashSimulator Repository
2. Clone https://github.com/pkmoore/posix-omni-parser into python_modules directory
3. Clone https://github.com/ssavvides/parse-syscall-definitions into python_modules directory
4. Generate system call definitions pickle file --- inside parse-syscall-definitions folder: python ./parse_syscall_definitions.py
5. Copy syscall_definitions.pickle into CrashSimulator root directory
6. Install python development materials sudo apt-get install python-dev
7. Install tracereplay python module in python_modules directory using sudo python setup.py install

Running Tests

1. Compile programs used in testing by building all targets specified in the make file in sample_programs directory
2. Execute test scripts in tests directory

Recoding a System Call Trace With Sufficient Detail

strace -f -s 65535 -vvvvv -o <filename>.strace <command>

Replaying a Recorded System Call Trace

python main.py -c "['<command>']" -t <system call trace>

Note: The "command" portion is a Python list of python strings containing the elements of the commands (command, switches, switch parameters, etc.). For example: python main.py -c "['wget', '-q0', '-', 'http://www.google.com']" -t wget_google.strace