Experimental Physics and
Industrial Control System

Michael Davidsaver via Core-talk <[email protected]> · Thu, 3 Jan 2019 10:17:32 -0800

Anyone else who has been annoyed about large binary file sizes,
when debug symbols are included, might benefit from looking into
compressing debug info section.

Since binutils 2.26, ld accepts --compress-debug-sections=zlib
which works great for reducing executable and shared library
sizes.  eg. libpvAccess.so.6.1.0 for linux-x86_64 goes
from 21MB to 7.3MB.

What I discovered this morning is that since at least GCC 5.1
the option '-gz' will compress individual object files as well,
and consequently reduces static library size.  eg. libpvAccess.a
goes from 53MB to 32MB.  Still huge, but less so.

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System