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authorGregory Nutt <gnutt@nuttx.org>2014-01-27 14:10:29 -0600
committerGregory Nutt <gnutt@nuttx.org>2014-01-27 14:10:29 -0600
commitbb09f350b8beaa7c68d898131c54f52722e16522 (patch)
tree5c37e581a6bff82ddc8791e6f62c94426fbc3304 /misc/tools/kconfig-frontends/docs/kconfig.txt
parent97b98200709f76e968fe73dd5a7ed0c43e4084db (diff)
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Update kconfig-frontends to 3.12.0
Diffstat (limited to 'misc/tools/kconfig-frontends/docs/kconfig.txt')
-rw-r--r--misc/tools/kconfig-frontends/docs/kconfig.txt55
1 files changed, 54 insertions, 1 deletions
diff --git a/misc/tools/kconfig-frontends/docs/kconfig.txt b/misc/tools/kconfig-frontends/docs/kconfig.txt
index a09f1a6a8..8ef6dbb6a 100644
--- a/misc/tools/kconfig-frontends/docs/kconfig.txt
+++ b/misc/tools/kconfig-frontends/docs/kconfig.txt
@@ -46,6 +46,12 @@ KCONFIG_OVERWRITECONFIG
If you set KCONFIG_OVERWRITECONFIG in the environment, Kconfig will not
break symlinks when .config is a symlink to somewhere else.
+CONFIG_
+--------------------------------------------------
+If you set CONFIG_ in the environment, Kconfig will prefix all symbols
+with its value when saving the configuration, instead of using the default,
+"CONFIG_".
+
______________________________________________________________________
Environment variables for '{allyes/allmod/allno/rand}config'
@@ -84,6 +90,42 @@ disable the options that are explicitly listed in the specified
mini-config files.
______________________________________________________________________
+Environment variables for 'randconfig'
+
+KCONFIG_SEED
+--------------------------------------------------
+You can set this to the integer value used to seed the RNG, if you want
+to somehow debug the behaviour of the kconfig parser/frontends.
+If not set, the current time will be used.
+
+KCONFIG_PROBABILITY
+--------------------------------------------------
+This variable can be used to skew the probabilities. This variable can
+be unset or empty, or set to three different formats:
+ KCONFIG_PROBABILITY y:n split y:m:n split
+ -----------------------------------------------------------------
+ unset or empty 50 : 50 33 : 33 : 34
+ N N : 100-N N/2 : N/2 : 100-N
+ [1] N:M N+M : 100-(N+M) N : M : 100-(N+M)
+ [2] N:M:L N : 100-N M : L : 100-(M+L)
+
+where N, M and L are integers (in base 10) in the range [0,100], and so
+that:
+ [1] N+M is in the range [0,100]
+ [2] M+L is in the range [0,100]
+
+Examples:
+ KCONFIG_PROBABILITY=10
+ 10% of booleans will be set to 'y', 90% to 'n'
+ 5% of tristates will be set to 'y', 5% to 'm', 90% to 'n'
+ KCONFIG_PROBABILITY=15:25
+ 40% of booleans will be set to 'y', 60% to 'n'
+ 15% of tristates will be set to 'y', 25% to 'm', 60% to 'n'
+ KCONFIG_PROBABILITY=10:15:15
+ 10% of booleans will be set to 'y', 90% to 'n'
+ 15% of tristates will be set to 'y', 15% to 'm', 70% to 'n'
+
+______________________________________________________________________
Environment variables for 'silentoldconfig'
KCONFIG_NOSILENTUPDATE
@@ -123,7 +165,7 @@ Searching in menuconfig:
Example:
/hotplug
This lists all config symbols that contain "hotplug",
- e.g., HOTPLUG, HOTPLUG_CPU, MEMORY_HOTPLUG.
+ e.g., HOTPLUG_CPU, MEMORY_HOTPLUG.
For search help, enter / followed TAB-TAB-TAB (to highlight
<Help>) and Enter. This will tell you that you can also use
@@ -132,6 +174,17 @@ Searching in menuconfig:
/^hotplug
+ When searching, symbols are sorted thus:
+ - first, exact matches, sorted alphabetically (an exact match
+ is when the search matches the complete symbol name);
+ - then, other matches, sorted alphabetically.
+ For example: ^ATH.K matches:
+ ATH5K ATH9K ATH5K_AHB ATH5K_DEBUG [...] ATH6KL ATH6KL_DEBUG
+ [...] ATH9K_AHB ATH9K_BTCOEX_SUPPORT ATH9K_COMMON [...]
+ of which only ATH5K and ATH9K match exactly and so are sorted
+ first (and in alphabetical order), then come all other symbols,
+ sorted in alphabetical order.
+
______________________________________________________________________
User interface options for 'menuconfig'