2013-02-13 13:59:02 +01:00
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// -*- mode:doc; -*-
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// vim: set syntax=asciidoc:
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2012-11-11 04:14:42 +01:00
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[[ccache]]
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manual: use one-line titles instead of two-line titles (trivial)
Asciidoc supports two syntaxes for section titles: two-line titles (title
plus underline consisting of a particular symbol), and one-line titles
(title prefixed with a specific number of = signs).
The two-line title underlines are:
Level 0 (top level): ======================
Level 1: ----------------------
Level 2: ~~~~~~~~~~~~~~~~~~~~~~
Level 3: ^^^^^^^^^^^^^^^^^^^^^^
Level 4 (bottom level): ++++++++++++++++++++++
and the one-line title prefixes:
= Document Title (level 0) =
== Section title (level 1) ==
=== Section title (level 2) ===
==== Section title (level 3) ====
===== Section title (level 4) =====
The buildroot manual is currenly using the two-line titles, but this has
multiple disadvantages:
- asciidoc also uses some of the underline symbols for other purposes (like
preformatted code, example blocks, ...), which makes it difficult to do
mass replacements, such as a planned follow-up patch that needs to move
all sections one level down.
- it is difficult to remember which level a given underline symbol (=-~^+)
corresponds to, while counting = signs is easy.
This patch changes all two-level titles to one-level titles in the manual.
The bulk of the change was done with the following Python script, except for
the level 1 titles (-----) as these underlines are also used for literal
code blocks.
This patch only changes the titles, no other changes. In
adding-packages-directory.txt, I did add missing newlines between some
titles and their content.
----------------------------------------------------------------------------
#!/usr/bin/env python
import sys
import mmap
import re
for input in sys.argv[1:]:
f = open(input, 'r+')
f.flush()
s = mmap.mmap(f.fileno(), 0)
# Level 0 (top level): ====================== =
# Level 1: ---------------------- ==
# Level 2: ~~~~~~~~~~~~~~~~~~~~~~ ===
# Level 3: ^^^^^^^^^^^^^^^^^^^^^^ ====
# Level 4 (bottom level): ++++++++++++++++++++++ =====
def replace_title(s, symbol, replacement):
pattern = re.compile(r'(.+\n)\%s{2,}\n' % symbol, re.MULTILINE)
return pattern.sub(r'%s \1' % replacement, s)
new = s
new = replace_title(new, '=', '=')
new = replace_title(new, '+', '=====')
new = replace_title(new, '^', '====')
new = replace_title(new, '~', '===')
#new = replace_title(new, '-', '==')
s.seek(0)
s.write(new)
s.resize(s.tell())
s.close()
f.close()
----------------------------------------------------------------------------
Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2014-05-02 07:47:30 +02:00
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=== Using +ccache+ in Buildroot
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2011-10-10 10:46:39 +02:00
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http://ccache.samba.org[ccache] is a compiler cache. It stores the
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object files resulting from each compilation process, and is able to
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skip future compilation of the same source file (with same compiler
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and same arguments) by using the pre-existing object files. When doing
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almost identical builds from scratch a number of times, it can nicely
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speed up the build process.
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+ccache+ support is integrated in Buildroot. You just have to enable
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+Enable compiler cache+ in +Build options+. This will automatically
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build +ccache+ and use it for every host and target compilation.
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The cache is located in +$HOME/.buildroot-ccache+. It is stored
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outside of Buildroot output directory so that it can be shared by
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separate Buildroot builds. If you want to get rid of the cache, simply
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remove this directory.
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You can get statistics on the cache (its size, number of hits,
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misses, etc.) by running +make ccache-stats+.
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2013-10-10 19:50:57 +02:00
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The make target +ccache-options+ and the +CCACHE_OPTIONS+ variable
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provide more generic access to the ccache. For example
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-----------------
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# set cache limit size
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make CCACHE_OPTIONS="--max-size=5G" ccache-options
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# zero statistics counters
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make CCACHE_OPTIONS="--zero-stats" ccache-options
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-----------------
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