gcc plugin, which inserts shellcode instructions.

cmake .
make
gcc \
    -o test/hello \
    -fplugin=./libevil.so \
    -fplugin-arg-libevil-main=1 \
    test/hello.c

For C++ code, use non-mangled names.

mv libevil.so /tmp/a.so
alias gcc='gcc -fplugin=/tmp/a.so -fplugin-arg-a-main=1'

• CMAKE_TARGET_C_COMPILER: compiler to build gcc-nop-plugin for.
• SUFFIX: library name suffix. Useful when building multiple gcc-evil-plugin versions for different compilers. Do not use - character: this confuses the gcc command line parser.

• https://gcc.gnu.org/wiki/plugins