buildroot/utils
Thomas Petazzoni 0e64537917 utils/genrandconfig: reduce the maximum "size" of random configurations
genrandconfig is used by the Buildroot autobuilders to generate
semi-random configurations that we build test. As part of this, we use
"make randpackageconfig" to randomize the selection of packages,
together with a KCONFIG_PROBABILITY value, which indicates the
probabibility for each option to be enabled. This probability is
itself randomized, between 1% and 30% for every build.

However, with our increasing number of packages (over 2900), when we
use a 30% probability for options to be enabled, it means a *lot* of
options are enabled, causing very large configurations to be
tested. These configurations are not very realistic, and they take
ages to build on our autobuilders: we have builds that take 4, 5 or
even 7 hours to build.

In order to test a larger number of configurations and therefore a
larger variety of configurations, this commit reduces the maximum
probability to 20%.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2021-11-14 13:50:50 +01:00
..
checkpackagelib utils/checkpackagelib/lib_mk.py: handle 'else' and 'elif' statements 2021-01-02 13:54:59 +01:00
brmake utils/brmake: print the error code of the build 2017-07-05 00:15:05 +02:00
check-package support: utils: use python3 explicitly 2021-09-22 21:30:24 +02:00
config utils/config: new script to manipulate .config files on the command line 2017-09-27 22:45:35 +02:00
diffconfig utils/diffconfig: remove BR2_* prefix restriction 2018-10-21 19:57:06 +02:00
genrandconfig utils/genrandconfig: reduce the maximum "size" of random configurations 2021-11-14 13:50:50 +01:00
get-developers support: utils: use python3 explicitly 2021-09-22 21:30:24 +02:00
getdeveloperlib.py utils/getdeveloperlib.py: call Developer.hasfile() with relative path 2021-11-02 23:20:11 +01:00
readme.txt utils/readme.txt: add documentation of genrandconfig 2017-07-29 15:41:09 +02:00
scancpan package/perl: bump to version 5.32.1 2021-01-25 22:29:32 +01:00
scanpypi utils/scanpypi: remove python2 compatibility imports 2021-09-22 21:40:43 +02:00
size-stats-compare support: utils: use python3 explicitly 2021-09-22 21:30:24 +02:00
test-pkg utils/test-pkg: add mode to only prepare .config files 2021-08-28 17:01:11 +02:00

This directory contains various useful scripts and tools for working
with Buildroot. You need not add this directory in your PATH to use
any of those tools, but you may do so if you want.

brmake
    a script that can be run instead of make, that prepends the date in
    front of each line, redirects all of the build output to a file
    ("'br.log' in the current directory), and just outputs the Buildroot
    messages (those lines starting with >>>) on stdout.
    Do not run this script for interactive configuration (e.g. menuconfig)
    or on an unconfigured directory. The output is redirected so you will see
    nothing.

check-package
    a script that checks the coding style of a package's Config.in and
    .mk files, and also tests them for various types of typoes.

genrandconfig
    a script that generates a random configuration, used by the autobuilders
    (http://autobuild.buildroot.org). It selects a random toolchain from
    support/config-fragments/autobuild and randomly selects packages to build.

get-developpers
    a script to return the list of people interested in a specific part
    of Buildroot, so they can be Cc:ed on a mail. Accepts a patch as
    input, a package name or and architecture name.

scancpan
    a script to create a Buildroot package by scanning a CPAN module
    description.

scanpypi
    a script to create a Buildroot package by scanning a PyPI package
    description.

size-stats-compare
    a script to compare the rootfs size between two different Buildroot
    configurations. This can be used to identify the size impact of
    a specific option, of a set of specific options, or of an update
    to a newer Buildroot version...

test-pkg
    a script that tests a specific package against a set of various
    toolchains, with the goal to detect toolchain-related dependencies
    (wchar, threads...)