binary-size.rst
author Oleksandr Gavenko <gavenkoa@gmail.com>
Sat, 20 Feb 2016 23:13:00 +0200
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child 1905 fba288d59662
permissions -rw-r--r--
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.. -*- coding: utf-8; -*-
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.. include:: HEADER.rst
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===========================
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 Reducing binary code size
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===========================
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.. contents::
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Common receipt
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==============
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Configure build with disabling unused features e.g.::
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  $ ./configure --without-png
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Link dynamically instead statically (on your platform shared library may be
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already present).
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Avoid debug build. Make release/final build instead debug.
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Use packers. Packer compress binary so binary smaller. When program load
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decompress itself, so startup time increase.
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Binary packers::
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  http://upx.sourceforge.net
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    Home page.
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GCC
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======
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Use ``-Os`` when produces ``*.o`` files.
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Use ``-s`` when produces executable. And ``--remove-section=.comment`` and
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``--remove-section=.note"``.
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Use::
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  $ strip --strip-all <executable>
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and::
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  $ gcc -ffunction-sections -fdata-sections -c -o my.o my.c
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  $ gcc -Wl,--gc-sections -o my my.o
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MSVC
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====
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Use ``/Os`` when produces ``*.obj`` files.
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