Reduce debugging information

modulename: debug_info.ko

configname: CONFIG_DEBUG_INFO_REDUCED

Linux Kernel Configuration
└─>Kernel hacking
└─>Compile-time checks and compiler options
└─>Reduce debugging information
In linux kernel since version 2.6.36 (release Date: 2010-10-20)  
If you say Y here gcc is instructed to generate less debugging
information for structure types. This means that tools that
need full debugging information (like kgdb or systemtap) won't
be happy. But if you merely need debugging information to
resolve line numbers there is no loss. Advantage is that
build directory object sizes shrink dramatically over a full
DEBUG_INFO build and compile times are reduced too.
Only works with newer gcc versions.

source code: