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-rw-r--r--tools/testing/ktest/sample.conf570
1 files changed, 551 insertions, 19 deletions
diff --git a/tools/testing/ktest/sample.conf b/tools/testing/ktest/sample.conf
index 48cbcc80602..172eec4517f 100644
--- a/tools/testing/ktest/sample.conf
+++ b/tools/testing/ktest/sample.conf
@@ -72,6 +72,128 @@
# the same option name under the same test or as default
# ktest will fail to execute, and no tests will run.
#
+# DEFAULTS OVERRIDE
+#
+# Options defined in the DEFAULTS section can not be duplicated
+# even if they are defined in two different DEFAULT sections.
+# This is done to catch mistakes where an option is added but
+# the previous option was forgotten about and not commented.
+#
+# The OVERRIDE keyword can be added to a section to allow this
+# section to override other DEFAULT sections values that have
+# been defined previously. It will only override options that
+# have been defined before its use. Options defined later
+# in a non override section will still error. The same option
+# can not be defined in the same section even if that section
+# is marked OVERRIDE.
+#
+#
+#
+# Both TEST_START and DEFAULTS sections can also have the IF keyword
+# The value after the IF must evaluate into a 0 or non 0 positive
+# integer, and can use the config variables (explained below).
+#
+# DEFAULTS IF ${IS_X86_32}
+#
+# The above will process the DEFAULTS section if the config
+# variable IS_X86_32 evaluates to a non zero positive integer
+# otherwise if it evaluates to zero, it will act the same
+# as if the SKIP keyword was used.
+#
+# The ELSE keyword can be used directly after a section with
+# a IF statement.
+#
+# TEST_START IF ${RUN_NET_TESTS}
+# BUILD_TYPE = useconfig:${CONFIG_DIR}/config-network
+#
+# ELSE
+#
+# BUILD_TYPE = useconfig:${CONFIG_DIR}/config-normal
+#
+#
+# The ELSE keyword can also contain an IF statement to allow multiple
+# if then else sections. But all the sections must be either
+# DEFAULT or TEST_START, they can not be a mixture.
+#
+# TEST_START IF ${RUN_NET_TESTS}
+# BUILD_TYPE = useconfig:${CONFIG_DIR}/config-network
+#
+# ELSE IF ${RUN_DISK_TESTS}
+# BUILD_TYPE = useconfig:${CONFIG_DIR}/config-tests
+#
+# ELSE IF ${RUN_CPU_TESTS}
+# BUILD_TYPE = useconfig:${CONFIG_DIR}/config-cpu
+#
+# ELSE
+# BUILD_TYPE = useconfig:${CONFIG_DIR}/config-network
+#
+# The if statement may also have comparisons that will and for
+# == and !=, strings may be used for both sides.
+#
+# BOX_TYPE := x86_32
+#
+# DEFAULTS IF ${BOX_TYPE} == x86_32
+# BUILD_TYPE = useconfig:${CONFIG_DIR}/config-32
+# ELSE
+# BUILD_TYPE = useconfig:${CONFIG_DIR}/config-64
+#
+# The DEFINED keyword can be used by the IF statements too.
+# It returns true if the given config variable or option has been defined
+# or false otherwise.
+#
+#
+# DEFAULTS IF DEFINED USE_CC
+# CC := ${USE_CC}
+# ELSE
+# CC := gcc
+#
+#
+# As well as NOT DEFINED.
+#
+# DEFAULTS IF NOT DEFINED MAKE_CMD
+# MAKE_CMD := make ARCH=x86
+#
+#
+# And/or ops (&&,||) may also be used to make complex conditionals.
+#
+# TEST_START IF (DEFINED ALL_TESTS || ${MYTEST} == boottest) && ${MACHINE} == gandalf
+#
+# Notice the use of parentheses. Without any parentheses the above would be
+# processed the same as:
+#
+# TEST_START IF DEFINED ALL_TESTS || (${MYTEST} == boottest && ${MACHINE} == gandalf)
+#
+#
+#
+# INCLUDE file
+#
+# The INCLUDE keyword may be used in DEFAULT sections. This will
+# read another config file and process that file as well. The included
+# file can include other files, add new test cases or default
+# statements. Config variables will be passed to these files and changes
+# to config variables will be seen by top level config files. Including
+# a file is processed just like the contents of the file was cut and pasted
+# into the top level file, except, that include files that end with
+# TEST_START sections will have that section ended at the end of
+# the include file. That is, an included file is included followed
+# by another DEFAULT keyword.
+#
+# Unlike other files referenced in this config, the file path does not need
+# to be absolute. If the file does not start with '/', then the directory
+# that the current config file was located in is used. If no config by the
+# given name is found there, then the current directory is searched.
+#
+# INCLUDE myfile
+# DEFAULT
+#
+# is the same as:
+#
+# INCLUDE myfile
+#
+# Note, if the include file does not contain a full path, the file is
+# searched first by the location of the original include file, and then
+# by the location that ktest.pl was executed in.
+#
#### Config variables ####
#
@@ -206,12 +328,29 @@
# For a virtual machine with guest name "Guest".
#CONSOLE = virsh console Guest
+# Signal to send to kill console.
+# ktest.pl will create a child process to monitor the console.
+# When the console is finished, ktest will kill the child process
+# with this signal.
+# (default INT)
+#CLOSE_CONSOLE_SIGNAL = HUP
+
# Required version ending to differentiate the test
# from other linux builds on the system.
#LOCALVERSION = -test
+# For REBOOT_TYPE = grub2, you must specify where the grub.cfg
+# file is. This is the file that is searched to find the menu
+# option to boot to with GRUB_REBOOT
+#GRUB_FILE = /boot/grub2/grub.cfg
+
+# The tool for REBOOT_TYPE = grub2 to set the next reboot kernel
+# to boot into (one shot mode).
+# (default grub2_reboot)
+#GRUB_REBOOT = grub2_reboot
+
# The grub title name for the test kernel to boot
-# (Only mandatory if REBOOT_TYPE = grub)
+# (Only mandatory if REBOOT_TYPE = grub or grub2)
#
# Note, ktest.pl will not update the grub menu.lst, you need to
# manually add an option for the test. ktest.pl will search
@@ -221,10 +360,38 @@
# For example, if in the /boot/grub/menu.lst the test kernel title has:
# title Test Kernel
# kernel vmlinuz-test
+#
+# For grub2, a search of top level "menuentry"s are done. No
+# submenu is searched. The menu is found by searching for the
+# contents of GRUB_MENU in the line that starts with "menuentry".
+# You may want to include the quotes around the option. For example:
+# for: menuentry 'Test Kernel'
+# do a: GRUB_MENU = 'Test Kernel'
+# For customizing, add your entry in /etc/grub.d/40_custom.
+#
#GRUB_MENU = Test Kernel
+# For REBOOT_TYPE = syslinux, the name of the syslinux executable
+# (on the target) to use to set up the next reboot to boot the
+# test kernel.
+# (default extlinux)
+#SYSLINUX = syslinux
+
+# For REBOOT_TYPE = syslinux, the path that is passed to to the
+# syslinux command where syslinux is installed.
+# (default /boot/extlinux)
+#SYSLINUX_PATH = /boot/syslinux
+
+# For REBOOT_TYPE = syslinux, the syslinux label that references the
+# test kernel in the syslinux config file.
+# (default undefined)
+#SYSLINUX_LABEL = "test-kernel"
+
# A script to reboot the target into the test kernel
-# (Only mandatory if REBOOT_TYPE = script)
+# This and SWITCH_TO_TEST are about the same, except
+# SWITCH_TO_TEST is run even for REBOOT_TYPE = grub.
+# This may be left undefined.
+# (default undefined)
#REBOOT_SCRIPT =
#### Optional Config Options (all have defaults) ####
@@ -251,11 +418,30 @@
# DEFAULTS
# DEFAULTS SKIP
+# If you want to execute some command before the first test runs
+# you can set this option. Note, it can be set as a default option
+# or an option in the first test case. All other test cases will
+# ignore it. If both the default and first test have this option
+# set, then the first test will take precedence.
+#
+# default (undefined)
+#PRE_KTEST = ${SSH} ~/set_up_test
+
+# If you want to execute some command after all the tests have
+# completed, you can set this option. Note, it can be set as a
+# default or any test case can override it. If multiple test cases
+# set this option, then the last test case that set it will take
+# precedence
+#
+# default (undefined)
+#POST_KTEST = ${SSH} ~/dismantle_test
+
# The default test type (default test)
# The test types may be:
-# build - only build the kernel, do nothing else
-# boot - build and boot the kernel
-# test - build, boot and if TEST is set, run the test script
+# build - only build the kernel, do nothing else
+# install - build and install, but do nothing else (does not reboot)
+# boot - build, install, and boot the kernel
+# test - build, boot and if TEST is set, run the test script
# (If TEST is not set, it defaults back to boot)
# bisect - Perform a bisect on the kernel (see BISECT_TYPE below)
# patchcheck - Do a test on a series of commits in git (see PATCHCHECK below)
@@ -282,6 +468,14 @@
# (default "")
#BUILD_OPTIONS = -j20
+# If you need to do some special handling before installing
+# you can add a script with this option.
+# The environment variable KERNEL_VERSION will be set to the
+# kernel version that is used.
+#
+# default (undefined)
+#PRE_INSTALL = ssh user@target rm -rf '/lib/modules/*-test*'
+
# If you need an initrd, you can add a script or code here to install
# it. The environment variable KERNEL_VERSION will be set to the
# kernel version that is used. Remember to add the initrd line
@@ -293,8 +487,59 @@
# or on some systems:
#POST_INSTALL = ssh user@target /sbin/dracut -f /boot/initramfs-test.img $KERNEL_VERSION
+# If for some reason you just want to boot the kernel and you do not
+# want the test to install anything new. For example, you may just want
+# to boot test the same kernel over and over and do not want to go through
+# the hassle of installing anything, you can set this option to 1
+# (default 0)
+#NO_INSTALL = 1
+
+# If there is a command that you want to run before the individual test
+# case executes, then you can set this option
+#
+# default (undefined)
+#PRE_TEST = ${SSH} reboot_to_special_kernel
+
+# If there is a command you want to run after the individual test case
+# completes, then you can set this option.
+#
+# default (undefined)
+#POST_TEST = cd ${BUILD_DIR}; git reset --hard
+
+# If there is a script that you require to run before the build is done
+# you can specify it with PRE_BUILD.
+#
+# One example may be if you must add a temporary patch to the build to
+# fix a unrelated bug to perform a patchcheck test. This will apply the
+# patch before each build that is made. Use the POST_BUILD to do a git reset --hard
+# to remove the patch.
+#
+# (default undef)
+#PRE_BUILD = cd ${BUILD_DIR} && patch -p1 < /tmp/temp.patch
+
+# To specify if the test should fail if the PRE_BUILD fails,
+# PRE_BUILD_DIE needs to be set to 1. Otherwise the PRE_BUILD
+# result is ignored.
+# (default 0)
+# PRE_BUILD_DIE = 1
+
+# If there is a script that should run after the build is done
+# you can specify it with POST_BUILD.
+#
+# As the example in PRE_BUILD, POST_BUILD can be used to reset modifications
+# made by the PRE_BUILD.
+#
+# (default undef)
+#POST_BUILD = cd ${BUILD_DIR} && git reset --hard
+
+# To specify if the test should fail if the POST_BUILD fails,
+# POST_BUILD_DIE needs to be set to 1. Otherwise the POST_BUILD
+# result is ignored.
+# (default 0)
+#POST_BUILD_DIE = 1
+
# Way to reboot the box to the test kernel.
-# Only valid options so far are "grub" and "script"
+# Only valid options so far are "grub", "grub2", "syslinux" and "script"
# (default grub)
# If you specify grub, it will assume grub version 1
# and will search in /boot/grub/menu.lst for the title $GRUB_MENU
@@ -302,10 +547,38 @@
# your setup, then specify "script" and have a command or script
# specified in REBOOT_SCRIPT to boot to the target.
#
+# For REBOOT_TYPE = grub2, you must define both GRUB_MENU and
+# GRUB_FILE.
+#
+# For REBOOT_TYPE = syslinux, you must define SYSLINUX_LABEL, and
+# perhaps modify SYSLINUX (default extlinux) and SYSLINUX_PATH
+# (default /boot/extlinux)
+#
# The entry in /boot/grub/menu.lst must be entered in manually.
# The test will not modify that file.
#REBOOT_TYPE = grub
+# If you are using a machine that doesn't boot with grub, and
+# perhaps gets its kernel from a remote server (tftp), then
+# you can use this option to update the target image with the
+# test image.
+#
+# You could also do the same with POST_INSTALL, but the difference
+# between that option and this option is that POST_INSTALL runs
+# after the install, where this one runs just before a reboot.
+# (default undefined)
+#SWITCH_TO_TEST = cp ${OUTPUT_DIR}/${BUILD_TARGET} ${TARGET_IMAGE}
+
+# If you are using a machine that doesn't boot with grub, and
+# perhaps gets its kernel from a remote server (tftp), then
+# you can use this option to update the target image with the
+# the known good image to reboot safely back into.
+#
+# This option holds a command that will execute before needing
+# to reboot to a good known image.
+# (default undefined)
+#SWITCH_TO_GOOD = ssh ${SSH_USER}/${MACHINE} cp good_image ${TARGET_IMAGE}
+
# The min config that is needed to build for the machine
# A nice way to create this is with the following:
#
@@ -360,8 +633,8 @@
#ADD_CONFIG = /home/test/config-broken
# The location on the host where to write temp files
-# (default /tmp/ktest)
-#TMP_DIR = /tmp/ktest
+# (default /tmp/ktest/${MACHINE})
+#TMP_DIR = /tmp/ktest/${MACHINE}
# Optional log file to write the status (recommended)
# Note, this is a DEFAULT section only option.
@@ -383,6 +656,14 @@
# (default "login:")
#SUCCESS_LINE = login:
+# To speed up between reboots, defining a line that the
+# default kernel produces that represents that the default
+# kernel has successfully booted and can be used to pass
+# a new test kernel to it. Otherwise ktest.pl will wait till
+# SLEEP_TIME to continue.
+# (default undefined)
+#REBOOT_SUCCESS_LINE = login:
+
# In case the console constantly fills the screen, having
# a specified time to stop the test after success is recommended.
# (in seconds)
@@ -419,6 +700,12 @@
# (default undefined)
#STORE_FAILURES = /home/test/failures
+# Directory to store success directories on success. If this is not
+# set, the .config, dmesg and bootlog will not be saved if a
+# test succeeds.
+# (default undefined)
+#STORE_SUCCESSES = /home/test/successes
+
# Build without doing a make mrproper, or removing .config
# (default 0)
#BUILD_NOCLEAN = 0
@@ -448,6 +735,8 @@
# another test. If a reboot to the reliable kernel happens,
# we wait SLEEP_TIME for the console to stop producing output
# before starting the next test.
+#
+# You can speed up reboot times even more by setting REBOOT_SUCCESS_LINE.
# (default 60)
#SLEEP_TIME = 60
@@ -455,6 +744,14 @@
# (default 60)
#BISECT_SLEEP_TIME = 60
+# The max wait time (in seconds) for waiting for the console to finish.
+# If for some reason, the console is outputting content without
+# ever finishing, this will cause ktest to get stuck. This
+# option is the max time ktest will wait for the monitor (console)
+# to settle down before continuing.
+# (default 1800)
+#MAX_MONITOR_WAIT
+
# The time in between patch checks to sleep (in seconds)
# (default 60)
#PATCHCHECK_SLEEP_TIME = 60
@@ -503,21 +800,72 @@
# Example for a virtual guest call "Guest".
#POWER_OFF = virsh destroy Guest
+# To have the build fail on "new" warnings, create a file that
+# contains a list of all known warnings (they must match exactly
+# to the line with 'warning:', 'error:' or 'Error:'. If the option
+# WARNINGS_FILE is set, then that file will be read, and if the
+# build detects a warning, it will examine this file and if the
+# warning does not exist in it, it will fail the build.
+#
+# Note, if this option is defined to a file that does not exist
+# then any warning will fail the build.
+# (see make_warnings_file below)
+#
+# (optional, default undefined)
+#WARNINGS_FILE = ${OUTPUT_DIR}/warnings_file
+
# The way to execute a command on the target
# (default ssh $SSH_USER@$MACHINE $SSH_COMMAND";)
# The variables SSH_USER, MACHINE and SSH_COMMAND are defined
#SSH_EXEC = ssh $SSH_USER@$MACHINE $SSH_COMMAND";
-# The way to copy a file to the target
+# The way to copy a file to the target (install and modules)
# (default scp $SRC_FILE $SSH_USER@$MACHINE:$DST_FILE)
-# The variables SSH_USER, MACHINE, SRC_FILE and DST_FILE are defined.
-#SCP_TO_TARGET = scp $SRC_FILE $SSH_USER@$MACHINE:$DST_FILE
+# The variables SSH_USER, MACHINE are defined by the config
+# SRC_FILE and DST_FILE are ktest internal variables and
+# should only have '$' and not the '${}' notation.
+# (default scp $SRC_FILE ${SSH_USER}@${MACHINE}:$DST_FILE)
+#SCP_TO_TARGET = echo skip scp for $SRC_FILE $DST_FILE
+
+# If install needs to be different than modules, then this
+# option will override the SCP_TO_TARGET for installation.
+# (default ${SCP_TO_TARGET} )
+#SCP_TO_TARGET_INSTALL = scp $SRC_FILE tftp@tftpserver:$DST_FILE
# The nice way to reboot the target
# (default ssh $SSH_USER@$MACHINE reboot)
# The variables SSH_USER and MACHINE are defined.
#REBOOT = ssh $SSH_USER@$MACHINE reboot
+# The way triple faults are detected is by testing the kernel
+# banner. If the kernel banner for the kernel we are testing is
+# found, and then later a kernel banner for another kernel version
+# is found, it is considered that we encountered a triple fault,
+# and there is no panic or callback, but simply a reboot.
+# To disable this (because it did a false positive) set the following
+# to 0.
+# (default 1)
+#DETECT_TRIPLE_FAULT = 0
+
+# All options in the config file should be either used by ktest
+# or could be used within a value of another option. If an option
+# in the config file is not used, ktest will warn about it and ask
+# if you want to continue.
+#
+# If you don't care if there are non-used options, enable this
+# option. Be careful though, a non-used option is usually a sign
+# of an option name being typed incorrectly.
+# (default 0)
+#IGNORE_UNUSED = 1
+
+# When testing a kernel that happens to have WARNINGs, and call
+# traces, ktest.pl will detect these and fail a boot or test run
+# due to warnings. By setting this option, ktest will ignore
+# call traces, and will not fail a test if the kernel produces
+# an oops. Use this option with care.
+# (default 0)
+#IGNORE_ERRORS = 1
+
#### Per test run options ####
# The following options are only allowed in TEST_START sections.
# They are ignored in the DEFAULTS sections.
@@ -535,6 +883,12 @@
# all preceding tests until a new CHECKOUT is set.
#
#
+# TEST_NAME = name
+#
+# If you want the test to have a name that is displayed in
+# the test result banner at the end of the test, then use this
+# option. This is useful to search for the RESULT keyword and
+# not have to translate a test number to a test in the config.
#
# For TEST_TYPE = patchcheck
#
@@ -556,7 +910,12 @@
# build, boot, test.
#
# Note, the build test will look for warnings, if a warning occurred
-# in a file that a commit touches, the build will fail.
+# in a file that a commit touches, the build will fail, unless
+# IGNORE_WARNINGS is set for the given commit's sha1
+#
+# IGNORE_WARNINGS can be used to disable the failure of patchcheck
+# on a particuler commit (SHA1). You can add more than one commit
+# by adding a list of SHA1s that are space delimited.
#
# If BUILD_NOCLEAN is set, then make mrproper will not be run on
# any of the builds, just like all other TEST_TYPE tests. But
@@ -571,6 +930,7 @@
# PATCHCHECK_TYPE = boot
# PATCHCHECK_START = 747e94ae3d1b4c9bf5380e569f614eb9040b79e7
# PATCHCHECK_END = HEAD~2
+# IGNORE_WARNINGS = 42f9c6b69b54946ffc0515f57d01dc7f5c0e4712 0c17ca2c7187f431d8ffc79e81addc730f33d128
#
#
#
@@ -668,6 +1028,56 @@
# BISECT_BAD with BISECT_CHECK = good or
# BISECT_CHECK = bad, respectively.
#
+# BISECT_TRIES = 5 (optional, default 1)
+#
+# For those cases that it takes several tries to hit a bug,
+# the BISECT_TRIES is useful. It is the number of times the
+# test is ran before it says the kernel is good. The first failure
+# will stop trying and mark the current SHA1 as bad.
+#
+# Note, as with all race bugs, there's no guarantee that if
+# it succeeds, it is really a good bisect. But it helps in case
+# the bug is some what reliable.
+#
+# You can set BISECT_TRIES to zero, and all tests will be considered
+# good, unless you also set BISECT_MANUAL.
+#
+# BISECT_RET_GOOD = 0 (optional, default undefined)
+#
+# In case the specificed test returns something other than just
+# 0 for good, and non-zero for bad, you can override 0 being
+# good by defining BISECT_RET_GOOD.
+#
+# BISECT_RET_BAD = 1 (optional, default undefined)
+#
+# In case the specificed test returns something other than just
+# 0 for good, and non-zero for bad, you can override non-zero being
+# bad by defining BISECT_RET_BAD.
+#
+# BISECT_RET_ABORT = 255 (optional, default undefined)
+#
+# If you need to abort the bisect if the test discovers something
+# that was wrong, you can define BISECT_RET_ABORT to be the error
+# code returned by the test in order to abort the bisect.
+#
+# BISECT_RET_SKIP = 2 (optional, default undefined)
+#
+# If the test detects that the current commit is neither good
+# nor bad, but something else happened (another bug detected)
+# you can specify BISECT_RET_SKIP to an error code that the
+# test returns when it should skip the current commit.
+#
+# BISECT_RET_DEFAULT = good (optional, default undefined)
+#
+# You can override the default of what to do when the above
+# options are not hit. This may be one of, "good", "bad",
+# "abort" or "skip" (without the quotes).
+#
+# Note, if you do not define any of the previous BISECT_RET_*
+# and define BISECT_RET_DEFAULT, all bisects results will do
+# what the BISECT_RET_DEFAULT has.
+#
+#
# Example:
# TEST_START
# TEST_TYPE = bisect
@@ -739,19 +1149,141 @@
# boot - bad builds but fails to boot
# test - bad boots but fails a test
#
-# CONFIG_BISECT is the config that failed to boot
+# CONFIG_BISECT is the config that failed to boot
+#
+# If BISECT_MANUAL is set, it will pause between iterations.
+# This is useful to use just ktest.pl just for the config bisect.
+# If you set it to build, it will run the bisect and you can
+# control what happens in between iterations. It will ask you if
+# the test succeeded or not and continue the config bisect.
#
-# If BISECT_MANUAL is set, it will pause between iterations.
-# This is useful to use just ktest.pl just for the config bisect.
-# If you set it to build, it will run the bisect and you can
-# control what happens in between iterations. It will ask you if
-# the test succeeded or not and continue the config bisect.
+# CONFIG_BISECT_GOOD (optional)
+# If you have a good config to start with, then you
+# can specify it with CONFIG_BISECT_GOOD. Otherwise
+# the MIN_CONFIG is the base.
+#
+# CONFIG_BISECT_CHECK (optional)
+# Set this to 1 if you want to confirm that the config ktest
+# generates (the bad config with the min config) is still bad.
+# It may be that the min config fixes what broke the bad config
+# and the test will not return a result.
#
# Example:
# TEST_START
# TEST_TYPE = config_bisect
# CONFIG_BISECT_TYPE = build
-# CONFIG_BISECT = /home/test/˘onfig-bad
+# CONFIG_BISECT = /home/test/config-bad
# MIN_CONFIG = /home/test/config-min
# BISECT_MANUAL = 1
#
+#
+#
+# For TEST_TYPE = make_min_config
+#
+# After doing a make localyesconfig, your kernel configuration may
+# not be the most useful minimum configuration. Having a true minimum
+# config that you can use against other configs is very useful if
+# someone else has a config that breaks on your code. By only forcing
+# those configurations that are truly required to boot your machine
+# will give you less of a chance that one of your set configurations
+# will make the bug go away. This will give you a better chance to
+# be able to reproduce the reported bug matching the broken config.
+#
+# Note, this does take some time, and may require you to run the
+# test over night, or perhaps over the weekend. But it also allows
+# you to interrupt it, and gives you the current minimum config
+# that was found till that time.
+#
+# Note, this test automatically assumes a BUILD_TYPE of oldconfig
+# and its test type acts like boot.
+# TODO: add a test version that makes the config do more than just
+# boot, like having network access.
+#
+# To save time, the test does not just grab any option and test
+# it. The Kconfig files are examined to determine the dependencies
+# of the configs. If a config is chosen that depends on another
+# config, that config will be checked first. By checking the
+# parents first, we can eliminate whole groups of configs that
+# may have been enabled.
+#
+# For example, if a USB device config is chosen and depends on CONFIG_USB,
+# the CONFIG_USB will be tested before the device. If CONFIG_USB is
+# found not to be needed, it, as well as all configs that depend on
+# it, will be disabled and removed from the current min_config.
+#
+# OUTPUT_MIN_CONFIG is the path and filename of the file that will
+# be created from the MIN_CONFIG. If you interrupt the test, set
+# this file as your new min config, and use it to continue the test.
+# This file does not need to exist on start of test.
+# This file is not created until a config is found that can be removed.
+# If this file exists, you will be prompted if you want to use it
+# as the min_config (overriding MIN_CONFIG) if START_MIN_CONFIG
+# is not defined.
+# (required field)
+#
+# START_MIN_CONFIG is the config to use to start the test with.
+# you can set this as the same OUTPUT_MIN_CONFIG, but if you do
+# the OUTPUT_MIN_CONFIG file must exist.
+# (default MIN_CONFIG)
+#
+# IGNORE_CONFIG is used to specify a config file that has configs that
+# you already know must be set. Configs are written here that have
+# been tested and proved to be required. It is best to define this
+# file if you intend on interrupting the test and running it where
+# it left off. New configs that it finds will be written to this file
+# and will not be tested again in later runs.
+# (optional)
+#
+# MIN_CONFIG_TYPE can be either 'boot' or 'test'. With 'boot' it will
+# test if the created config can just boot the machine. If this is
+# set to 'test', then the TEST option must be defined and the created
+# config will not only boot the target, but also make sure that the
+# config lets the test succeed. This is useful to make sure the final
+# config that is generated allows network activity (ssh).
+# (optional)
+#
+# USE_OUTPUT_MIN_CONFIG set this to 1 if you do not want to be prompted
+# about using the OUTPUT_MIN_CONFIG as the MIN_CONFIG as the starting
+# point. Set it to 0 if you want to always just use the given MIN_CONFIG.
+# If it is not defined, it will prompt you to pick which config
+# to start with (MIN_CONFIG or OUTPUT_MIN_CONFIG).
+#
+# Example:
+#
+# TEST_TYPE = make_min_config
+# OUTPUT_MIN_CONFIG = /path/to/config-new-min
+# START_MIN_CONFIG = /path/to/config-min
+# IGNORE_CONFIG = /path/to/config-tested
+# MIN_CONFIG_TYPE = test
+# TEST = ssh ${USER}@${MACHINE} echo hi
+#
+#
+#
+#
+# For TEST_TYPE = make_warnings_file
+#
+# If you want the build to fail when a new warning is discovered
+# you set the WARNINGS_FILE to point to a file of known warnings.
+#
+# The test "make_warnings_file" will let you create a new warnings
+# file before you run other tests, like patchcheck.
+#
+# What this test does is to run just a build, you still need to
+# specify BUILD_TYPE to tell the test what type of config to use.
+# A BUILD_TYPE of nobuild will fail this test.
+#
+# The test will do the build and scan for all warnings. Any warning
+# it discovers will be saved in the WARNINGS_FILE (required) option.
+#
+# It is recommended (but not necessary) to make sure BUILD_NOCLEAN is
+# off, so that a full build is done (make mrproper is performed).
+# That way, all warnings will be captured.
+#
+# Example:
+#
+# TEST_TYPE = make_warnings_file
+# WARNINGS_FILE = ${OUTPUT_DIR}
+# BUILD_TYPE = useconfig:oldconfig
+# CHECKOUT = v3.8
+# BUILD_NOCLEAN = 0
+#