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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [xen master] build: import Kbuild/Kconfig from Linux 4.3
commit 8c271b7584ed7feff57e5b3ffd01746e7b03c8ae
Author: Doug Goldstein <cardoe@xxxxxxxxxx>
AuthorDate: Tue Dec 15 14:14:00 2015 +0100
Commit: Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Wed Dec 16 17:25:15 2015 +0100
build: import Kbuild/Kconfig from Linux 4.3
Import the following files and directories from the Linux v4.3 tag /
commit id 6a13feb9c82803e2b815eca72fa7a9f5561d7861.
- scripts/kconfig -> xen/tools/kconfig
- Documentation/kbuild/kconfig{,-language}.txt ->
docs/misc/kconfig{-language}.txt
- scripts/Makefile.host -> xen/tools/kconfig/Makefile.host
These files are currently unused but will be used shortly.
Signed-off-by: Doug Goldstein <cardoe@xxxxxxxxxx>
Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
---
docs/misc/kconfig-language.txt | 395 ++++
docs/misc/kconfig.txt | 237 +++
xen/tools/kconfig/.gitignore | 22 +
xen/tools/kconfig/Makefile | 317 ++++
xen/tools/kconfig/Makefile.host | 128 ++
xen/tools/kconfig/POTFILES.in | 12 +
xen/tools/kconfig/check.sh | 13 +
xen/tools/kconfig/conf.c | 722 +++++++
xen/tools/kconfig/confdata.c | 1245 +++++++++++++
xen/tools/kconfig/expr.c | 1206 ++++++++++++
xen/tools/kconfig/expr.h | 238 +++
xen/tools/kconfig/gconf.c | 1521 +++++++++++++++
xen/tools/kconfig/gconf.glade | 661 +++++++
xen/tools/kconfig/images.c | 326 ++++
xen/tools/kconfig/kxgettext.c | 235 +++
xen/tools/kconfig/list.h | 131 ++
xen/tools/kconfig/lkc.h | 186 ++
xen/tools/kconfig/lkc_proto.h | 52 +
xen/tools/kconfig/lxdialog/.gitignore | 4 +
xen/tools/kconfig/lxdialog/BIG.FAT.WARNING | 4 +
xen/tools/kconfig/lxdialog/check-lxdialog.sh | 91 +
xen/tools/kconfig/lxdialog/checklist.c | 332 ++++
xen/tools/kconfig/lxdialog/dialog.h | 257 +++
xen/tools/kconfig/lxdialog/inputbox.c | 301 +++
xen/tools/kconfig/lxdialog/menubox.c | 437 +++++
xen/tools/kconfig/lxdialog/textbox.c | 408 ++++
xen/tools/kconfig/lxdialog/util.c | 713 +++++++
xen/tools/kconfig/lxdialog/yesno.c | 114 ++
xen/tools/kconfig/mconf.c | 1047 +++++++++++
xen/tools/kconfig/menu.c | 697 +++++++
xen/tools/kconfig/merge_config.sh | 162 ++
xen/tools/kconfig/nconf.c | 1561 ++++++++++++++++
xen/tools/kconfig/nconf.gui.c | 656 +++++++
xen/tools/kconfig/nconf.h | 96 +
xen/tools/kconfig/qconf.cc | 1798 ++++++++++++++++++
xen/tools/kconfig/qconf.h | 338 ++++
xen/tools/kconfig/streamline_config.pl | 647 +++++++
xen/tools/kconfig/symbol.c | 1376 ++++++++++++++
xen/tools/kconfig/util.c | 147 ++
xen/tools/kconfig/zconf.gperf | 49 +
xen/tools/kconfig/zconf.hash.c_shipped | 293 +++
xen/tools/kconfig/zconf.l | 374 ++++
xen/tools/kconfig/zconf.lex.c_shipped | 2473 ++++++++++++++++++++++++
xen/tools/kconfig/zconf.tab.c_shipped | 2580 ++++++++++++++++++++++++++
xen/tools/kconfig/zconf.y | 742 ++++++++
45 files changed, 25344 insertions(+), 0 deletions(-)
diff --git a/docs/misc/kconfig-language.txt b/docs/misc/kconfig-language.txt
new file mode 100644
index 0000000..350f733
--- /dev/null
+++ b/docs/misc/kconfig-language.txt
@@ -0,0 +1,395 @@
+Introduction
+------------
+
+The configuration database is a collection of configuration options
+organized in a tree structure:
+
+ +- Code maturity level options
+ | +- Prompt for development and/or incomplete code/drivers
+ +- General setup
+ | +- Networking support
+ | +- System V IPC
+ | +- BSD Process Accounting
+ | +- Sysctl support
+ +- Loadable module support
+ | +- Enable loadable module support
+ | +- Set version information on all module symbols
+ | +- Kernel module loader
+ +- ...
+
+Every entry has its own dependencies. These dependencies are used
+to determine the visibility of an entry. Any child entry is only
+visible if its parent entry is also visible.
+
+Menu entries
+------------
+
+Most entries define a config option; all other entries help to organize
+them. A single configuration option is defined like this:
+
+config MODVERSIONS
+ bool "Set version information on all module symbols"
+ depends on MODULES
+ help
+ Usually, modules have to be recompiled whenever you switch to a new
+ kernel. ...
+
+Every line starts with a key word and can be followed by multiple
+arguments. "config" starts a new config entry. The following lines
+define attributes for this config option. Attributes can be the type of
+the config option, input prompt, dependencies, help text and default
+values. A config option can be defined multiple times with the same
+name, but every definition can have only a single input prompt and the
+type must not conflict.
+
+Menu attributes
+---------------
+
+A menu entry can have a number of attributes. Not all of them are
+applicable everywhere (see syntax).
+
+- type definition: "bool"/"tristate"/"string"/"hex"/"int"
+ Every config option must have a type. There are only two basic types:
+ tristate and string; the other types are based on these two. The type
+ definition optionally accepts an input prompt, so these two examples
+ are equivalent:
+
+ bool "Networking support"
+ and
+ bool
+ prompt "Networking support"
+
+- input prompt: "prompt" <prompt> ["if" <expr>]
+ Every menu entry can have at most one prompt, which is used to display
+ to the user. Optionally dependencies only for this prompt can be added
+ with "if".
+
+- default value: "default" <expr> ["if" <expr>]
+ A config option can have any number of default values. If multiple
+ default values are visible, only the first defined one is active.
+ Default values are not limited to the menu entry where they are
+ defined. This means the default can be defined somewhere else or be
+ overridden by an earlier definition.
+ The default value is only assigned to the config symbol if no other
+ value was set by the user (via the input prompt above). If an input
+ prompt is visible the default value is presented to the user and can
+ be overridden by him.
+ Optionally, dependencies only for this default value can be added with
+ "if".
+
+- type definition + default value:
+ "def_bool"/"def_tristate" <expr> ["if" <expr>]
+ This is a shorthand notation for a type definition plus a value.
+ Optionally dependencies for this default value can be added with "if".
+
+- dependencies: "depends on" <expr>
+ This defines a dependency for this menu entry. If multiple
+ dependencies are defined, they are connected with '&&'. Dependencies
+ are applied to all other options within this menu entry (which also
+ accept an "if" expression), so these two examples are equivalent:
+
+ bool "foo" if BAR
+ default y if BAR
+ and
+ depends on BAR
+ bool "foo"
+ default y
+
+- reverse dependencies: "select" <symbol> ["if" <expr>]
+ While normal dependencies reduce the upper limit of a symbol (see
+ below), reverse dependencies can be used to force a lower limit of
+ another symbol. The value of the current menu symbol is used as the
+ minimal value <symbol> can be set to. If <symbol> is selected multiple
+ times, the limit is set to the largest selection.
+ Reverse dependencies can only be used with boolean or tristate
+ symbols.
+ Note:
+ select should be used with care. select will force
+ a symbol to a value without visiting the dependencies.
+ By abusing select you are able to select a symbol FOO even
+ if FOO depends on BAR that is not set.
+ In general use select only for non-visible symbols
+ (no prompts anywhere) and for symbols with no dependencies.
+ That will limit the usefulness but on the other hand avoid
+ the illegal configurations all over.
+
+- limiting menu display: "visible if" <expr>
+ This attribute is only applicable to menu blocks, if the condition is
+ false, the menu block is not displayed to the user (the symbols
+ contained there can still be selected by other symbols, though). It is
+ similar to a conditional "prompt" attribute for individual menu
+ entries. Default value of "visible" is true.
+
+- numerical ranges: "range" <symbol> <symbol> ["if" <expr>]
+ This allows to limit the range of possible input values for int
+ and hex symbols. The user can only input a value which is larger than
+ or equal to the first symbol and smaller than or equal to the second
+ symbol.
+
+- help text: "help" or "---help---"
+ This defines a help text. The end of the help text is determined by
+ the indentation level, this means it ends at the first line which has
+ a smaller indentation than the first line of the help text.
+ "---help---" and "help" do not differ in behaviour, "---help---" is
+ used to help visually separate configuration logic from help within
+ the file as an aid to developers.
+
+- misc options: "option" <symbol>[=<value>]
+ Various less common options can be defined via this option syntax,
+ which can modify the behaviour of the menu entry and its config
+ symbol. These options are currently possible:
+
+ - "defconfig_list"
+ This declares a list of default entries which can be used when
+ looking for the default configuration (which is used when the main
+ .config doesn't exists yet.)
+
+ - "modules"
+ This declares the symbol to be used as the MODULES symbol, which
+ enables the third modular state for all config symbols.
+ At most one symbol may have the "modules" option set.
+
+ - "env"=<value>
+ This imports the environment variable into Kconfig. It behaves like
+ a default, except that the value comes from the environment, this
+ also means that the behaviour when mixing it with normal defaults is
+ undefined at this point. The symbol is currently not exported back
+ to the build environment (if this is desired, it can be done via
+ another symbol).
+
+ - "allnoconfig_y"
+ This declares the symbol as one that should have the value y when
+ using "allnoconfig". Used for symbols that hide other symbols.
+
+Menu dependencies
+-----------------
+
+Dependencies define the visibility of a menu entry and can also reduce
+the input range of tristate symbols. The tristate logic used in the
+expressions uses one more state than normal boolean logic to express the
+module state. Dependency expressions have the following syntax:
+
+<expr> ::= <symbol> (1)
+ <symbol> '=' <symbol> (2)
+ <symbol> '!=' <symbol> (3)
+ '(' <expr> ')' (4)
+ '!' <expr> (5)
+ <expr> '&&' <expr> (6)
+ <expr> '||' <expr> (7)
+
+Expressions are listed in decreasing order of precedence.
+
+(1) Convert the symbol into an expression. Boolean and tristate symbols
+ are simply converted into the respective expression values. All
+ other symbol types result in 'n'.
+(2) If the values of both symbols are equal, it returns 'y',
+ otherwise 'n'.
+(3) If the values of both symbols are equal, it returns 'n',
+ otherwise 'y'.
+(4) Returns the value of the expression. Used to override precedence.
+(5) Returns the result of (2-/expr/).
+(6) Returns the result of min(/expr/, /expr/).
+(7) Returns the result of max(/expr/, /expr/).
+
+An expression can have a value of 'n', 'm' or 'y' (or 0, 1, 2
+respectively for calculations). A menu entry becomes visible when its
+expression evaluates to 'm' or 'y'.
+
+There are two types of symbols: constant and non-constant symbols.
+Non-constant symbols are the most common ones and are defined with the
+'config' statement. Non-constant symbols consist entirely of alphanumeric
+characters or underscores.
+Constant symbols are only part of expressions. Constant symbols are
+always surrounded by single or double quotes. Within the quote, any
+other character is allowed and the quotes can be escaped using '\'.
+
+Menu structure
+--------------
+
+The position of a menu entry in the tree is determined in two ways. First
+it can be specified explicitly:
+
+menu "Network device support"
+ depends on NET
+
+config NETDEVICES
+ ...
+
+endmenu
+
+All entries within the "menu" ... "endmenu" block become a submenu of
+"Network device support". All subentries inherit the dependencies from
+the menu entry, e.g. this means the dependency "NET" is added to the
+dependency list of the config option NETDEVICES.
+
+The other way to generate the menu structure is done by analyzing the
+dependencies. If a menu entry somehow depends on the previous entry, it
+can be made a submenu of it. First, the previous (parent) symbol must
+be part of the dependency list and then one of these two conditions
+must be true:
+- the child entry must become invisible, if the parent is set to 'n'
+- the child entry must only be visible, if the parent is visible
+
+config MODULES
+ bool "Enable loadable module support"
+
+config MODVERSIONS
+ bool "Set version information on all module symbols"
+ depends on MODULES
+
+comment "module support disabled"
+ depends on !MODULES
+
+MODVERSIONS directly depends on MODULES, this means it's only visible if
+MODULES is different from 'n'. The comment on the other hand is always
+visible when MODULES is visible (the (empty) dependency of MODULES is
+also part of the comment dependencies).
+
+
+Kconfig syntax
+--------------
+
+The configuration file describes a series of menu entries, where every
+line starts with a keyword (except help texts). The following keywords
+end a menu entry:
+- config
+- menuconfig
+- choice/endchoice
+- comment
+- menu/endmenu
+- if/endif
+- source
+The first five also start the definition of a menu entry.
+
+config:
+
+ "config" <symbol>
+ <config options>
+
+This defines a config symbol <symbol> and accepts any of above
+attributes as options.
+
+menuconfig:
+ "menuconfig" <symbol>
+ <config options>
+
+This is similar to the simple config entry above, but it also gives a
+hint to front ends, that all suboptions should be displayed as a
+separate list of options.
+
+choices:
+
+ "choice" [symbol]
+ <choice options>
+ <choice block>
+ "endchoice"
+
+This defines a choice group and accepts any of the above attributes as
+options. A choice can only be of type bool or tristate, while a boolean
+choice only allows a single config entry to be selected, a tristate
+choice also allows any number of config entries to be set to 'm'. This
+can be used if multiple drivers for a single hardware exists and only a
+single driver can be compiled/loaded into the kernel, but all drivers
+can be compiled as modules.
+A choice accepts another option "optional", which allows to set the
+choice to 'n' and no entry needs to be selected.
+If no [symbol] is associated with a choice, then you can not have multiple
+definitions of that choice. If a [symbol] is associated to the choice,
+then you may define the same choice (ie. with the same entries) in another
+place.
+
+comment:
+
+ "comment" <prompt>
+ <comment options>
+
+This defines a comment which is displayed to the user during the
+configuration process and is also echoed to the output files. The only
+possible options are dependencies.
+
+menu:
+
+ "menu" <prompt>
+ <menu options>
+ <menu block>
+ "endmenu"
+
+This defines a menu block, see "Menu structure" above for more
+information. The only possible options are dependencies and "visible"
+attributes.
+
+if:
+
+ "if" <expr>
+ <if block>
+ "endif"
+
+This defines an if block. The dependency expression <expr> is appended
+to all enclosed menu entries.
+
+source:
+
+ "source" <prompt>
+
+This reads the specified configuration file. This file is always parsed.
+
+mainmenu:
+
+ "mainmenu" <prompt>
+
+This sets the config program's title bar if the config program chooses
+to use it. It should be placed at the top of the configuration, before any
+other statement.
+
+
+Kconfig hints
+-------------
+This is a collection of Kconfig tips, most of which aren't obvious at
+first glance and most of which have become idioms in several Kconfig
+files.
+
+Adding common features and make the usage configurable
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+It is a common idiom to implement a feature/functionality that are
+relevant for some architectures but not all.
+The recommended way to do so is to use a config variable named HAVE_*
+that is defined in a common Kconfig file and selected by the relevant
+architectures.
+An example is the generic IOMAP functionality.
+
+We would in lib/Kconfig see:
+
+# Generic IOMAP is used to ...
+config HAVE_GENERIC_IOMAP
+
+config GENERIC_IOMAP
+ depends on HAVE_GENERIC_IOMAP && FOO
+
+And in lib/Makefile we would see:
+obj-$(CONFIG_GENERIC_IOMAP) += iomap.o
+
+For each architecture using the generic IOMAP functionality we would see:
+
+config X86
+ select ...
+ select HAVE_GENERIC_IOMAP
+ select ...
+
+Note: we use the existing config option and avoid creating a new
+config variable to select HAVE_GENERIC_IOMAP.
+
+Note: the use of the internal config variable HAVE_GENERIC_IOMAP, it is
+introduced to overcome the limitation of select which will force a
+config option to 'y' no matter the dependencies.
+The dependencies are moved to the symbol GENERIC_IOMAP and we avoid the
+situation where select forces a symbol equals to 'y'.
+
+Build as module only
+~~~~~~~~~~~~~~~~~~~~
+To restrict a component build to module-only, qualify its config symbol
+with "depends on m". E.g.:
+
+config FOO
+ depends on BAR && m
+
+limits FOO to module (=m) or disabled (=n).
diff --git a/docs/misc/kconfig.txt b/docs/misc/kconfig.txt
new file mode 100644
index 0000000..bbc99c0
--- /dev/null
+++ b/docs/misc/kconfig.txt
@@ -0,0 +1,237 @@
+This file contains some assistance for using "make *config".
+
+Use "make help" to list all of the possible configuration targets.
+
+The xconfig ('qconf') and menuconfig ('mconf') programs also
+have embedded help text. Be sure to check it for navigation,
+search, and other general help text.
+
+======================================================================
+General
+--------------------------------------------------
+
+New kernel releases often introduce new config symbols. Often more
+important, new kernel releases may rename config symbols. When
+this happens, using a previously working .config file and running
+"make oldconfig" won't necessarily produce a working new kernel
+for you, so you may find that you need to see what NEW kernel
+symbols have been introduced.
+
+To see a list of new config symbols when using "make oldconfig", use
+
+ cp user/some/old.config .config
+ make listnewconfig
+
+and the config program will list any new symbols, one per line.
+
+ scripts/diffconfig .config.old .config | less
+
+______________________________________________________________________
+Environment variables for '*config'
+
+KCONFIG_CONFIG
+--------------------------------------------------
+This environment variable can be used to specify a default kernel config
+file name to override the default name of ".config".
+
+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'
+
+KCONFIG_ALLCONFIG
+--------------------------------------------------
+(partially based on lkml email from/by Rob Landley, re: miniconfig)
+--------------------------------------------------
+The allyesconfig/allmodconfig/allnoconfig/randconfig variants can also
+use the environment variable KCONFIG_ALLCONFIG as a flag or a filename
+that contains config symbols that the user requires to be set to a
+specific value. If KCONFIG_ALLCONFIG is used without a filename where
+KCONFIG_ALLCONFIG == "" or KCONFIG_ALLCONFIG == "1", "make *config"
+checks for a file named "all{yes/mod/no/def/random}.config"
+(corresponding to the *config command that was used) for symbol values
+that are to be forced. If this file is not found, it checks for a
+file named "all.config" to contain forced values.
+
+This enables you to create "miniature" config (miniconfig) or custom
+config files containing just the config symbols that you are interested
+in. Then the kernel config system generates the full .config file,
+including symbols of your miniconfig file.
+
+This 'KCONFIG_ALLCONFIG' file is a config file which contains
+(usually a subset of all) preset config symbols. These variable
+settings are still subject to normal dependency checks.
+
+Examples:
+ KCONFIG_ALLCONFIG=custom-notebook.config make allnoconfig
+or
+ KCONFIG_ALLCONFIG=mini.config make allnoconfig
+or
+ make KCONFIG_ALLCONFIG=mini.config allnoconfig
+
+These examples will disable most options (allnoconfig) but enable or
+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
+--------------------------------------------------
+If this variable has a non-blank value, it prevents silent kernel
+config updates (requires explicit updates).
+
+KCONFIG_AUTOCONFIG
+--------------------------------------------------
+This environment variable can be set to specify the path & name of the
+"auto.conf" file. Its default value is "include/config/auto.conf".
+
+KCONFIG_TRISTATE
+--------------------------------------------------
+This environment variable can be set to specify the path & name of the
+"tristate.conf" file. Its default value is "include/config/tristate.conf".
+
+KCONFIG_AUTOHEADER
+--------------------------------------------------
+This environment variable can be set to specify the path & name of the
+"autoconf.h" (header) file.
+Its default value is "include/generated/autoconf.h".
+
+
+======================================================================
+menuconfig
+--------------------------------------------------
+
+SEARCHING for CONFIG symbols
+
+Searching in menuconfig:
+
+ The Search function searches for kernel configuration symbol
+ names, so you have to know something close to what you are
+ looking for.
+
+ Example:
+ /hotplug
+ This lists all config symbols that contain "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
+ regular expressions (regexes) in the search string, so if you
+ are not interested in MEMORY_HOTPLUG, you could try
+
+ /^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'
+
+MENUCONFIG_COLOR
+--------------------------------------------------
+It is possible to select different color themes using the variable
+MENUCONFIG_COLOR. To select a theme use:
+
+ make MENUCONFIG_COLOR=<theme> menuconfig
+
+Available themes are:
+ mono => selects colors suitable for monochrome displays
+ blackbg => selects a color scheme with black background
+ classic => theme with blue background. The classic look
+ bluetitle => a LCD friendly version of classic. (default)
+
+MENUCONFIG_MODE
+--------------------------------------------------
+This mode shows all sub-menus in one large tree.
+
+Example:
+ make MENUCONFIG_MODE=single_menu menuconfig
+
+
+======================================================================
+xconfig
+--------------------------------------------------
+
+Searching in xconfig:
+
+ The Search function searches for kernel configuration symbol
+ names, so you have to know something close to what you are
+ looking for.
+
+ Example:
+ Ctrl-F hotplug
+ or
+ Menu: File, Search, hotplug
+
+ lists all config symbol entries that contain "hotplug" in
+ the symbol name. In this Search dialog, you may change the
+ config setting for any of the entries that are not grayed out.
+ You can also enter a different search string without having
+ to return to the main menu.
+
+
+======================================================================
+gconfig
+--------------------------------------------------
+
+Searching in gconfig:
+
+ None (gconfig isn't maintained as well as xconfig or menuconfig);
+ however, gconfig does have a few more viewing choices than
+ xconfig does.
+
+###
diff --git a/xen/tools/kconfig/.gitignore b/xen/tools/kconfig/.gitignore
new file mode 100644
index 0000000..be603c4
--- /dev/null
+++ b/xen/tools/kconfig/.gitignore
@@ -0,0 +1,22 @@
+#
+# Generated files
+#
+config*
+*.lex.c
+*.tab.c
+*.tab.h
+zconf.hash.c
+*.moc
+gconf.glade.h
+*.pot
+*.mo
+
+#
+# configuration programs
+#
+conf
+mconf
+nconf
+qconf
+gconf
+kxgettext
diff --git a/xen/tools/kconfig/Makefile b/xen/tools/kconfig/Makefile
new file mode 100644
index 0000000..aceaaed
--- /dev/null
+++ b/xen/tools/kconfig/Makefile
@@ -0,0 +1,317 @@
+# ===========================================================================
+# Kernel configuration targets
+# These targets are used from top-level makefile
+
+PHONY += xconfig gconfig menuconfig config silentoldconfig update-po-config \
+ localmodconfig localyesconfig
+
+ifdef KBUILD_KCONFIG
+Kconfig := $(KBUILD_KCONFIG)
+else
+Kconfig := Kconfig
+endif
+
+ifeq ($(quiet),silent_)
+silent := -s
+endif
+
+# We need this, in case the user has it in its environment
+unexport CONFIG_
+
+xconfig: $(obj)/qconf
+ $< $(silent) $(Kconfig)
+
+gconfig: $(obj)/gconf
+ $< $(silent) $(Kconfig)
+
+menuconfig: $(obj)/mconf
+ $< $(silent) $(Kconfig)
+
+config: $(obj)/conf
+ $< $(silent) --oldaskconfig $(Kconfig)
+
+nconfig: $(obj)/nconf
+ $< $(silent) $(Kconfig)
+
+silentoldconfig: $(obj)/conf
+ $(Q)mkdir -p include/config include/generated
+ $< $(silent) --$@ $(Kconfig)
+
+localyesconfig localmodconfig: $(obj)/streamline_config.pl $(obj)/conf
+ $(Q)mkdir -p include/config include/generated
+ $(Q)perl $< --$@ $(srctree) $(Kconfig) > .tmp.config
+ $(Q)if [ -f .config ]; then \
+ cmp -s .tmp.config .config || \
+ (mv -f .config .config.old.1; \
+ mv -f .tmp.config .config; \
+ $(obj)/conf $(silent) --silentoldconfig $(Kconfig); \
+ mv -f .config.old.1 .config.old) \
+ else \
+ mv -f .tmp.config .config; \
+ $(obj)/conf $(silent) --silentoldconfig $(Kconfig); \
+ fi
+ $(Q)rm -f .tmp.config
+
+# Create new linux.pot file
+# Adjust charset to UTF-8 in .po file to accept UTF-8 in Kconfig files
+update-po-config: $(obj)/kxgettext $(obj)/gconf.glade.h
+ $(Q)$(kecho) " GEN config.pot"
+ $(Q)xgettext --default-domain=linux \
+ --add-comments --keyword=_ --keyword=N_ \
+ --from-code=UTF-8 \
+ --files-from=$(srctree)/scripts/kconfig/POTFILES.in \
+ --directory=$(srctree) --directory=$(objtree) \
+ --output $(obj)/config.pot
+ $(Q)sed -i s/CHARSET/UTF-8/ $(obj)/config.pot
+ $(Q)(for i in `ls $(srctree)/arch/*/Kconfig \
+ $(srctree)/arch/*/um/Kconfig`; \
+ do \
+ $(kecho) " GEN $$i"; \
+ $(obj)/kxgettext $$i \
+ >> $(obj)/config.pot; \
+ done )
+ $(Q)$(kecho) " GEN linux.pot"
+ $(Q)msguniq --sort-by-file --to-code=UTF-8 $(obj)/config.pot \
+ --output $(obj)/linux.pot
+ $(Q)rm -f $(obj)/config.pot
+
+# These targets map 1:1 to the commandline options of 'conf'
+simple-targets := oldconfig allnoconfig allyesconfig allmodconfig \
+ alldefconfig randconfig listnewconfig olddefconfig
+PHONY += $(simple-targets)
+
+$(simple-targets): $(obj)/conf
+ $< $(silent) --$@ $(Kconfig)
+
+PHONY += oldnoconfig savedefconfig defconfig
+
+# oldnoconfig is an alias of olddefconfig, because people already are dependent
+# on its behavior (sets new symbols to their default value but not 'n') with
the
+# counter-intuitive name.
+oldnoconfig: olddefconfig
+
+savedefconfig: $(obj)/conf
+ $< $(silent) --$@=defconfig $(Kconfig)
+
+defconfig: $(obj)/conf
+ifeq ($(KBUILD_DEFCONFIG),)
+ $< $(silent) --defconfig $(Kconfig)
+else
+ @$(kecho) "*** Default configuration is based on '$(KBUILD_DEFCONFIG)'"
+ $(Q)$< $(silent)
--defconfig=arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG) $(Kconfig)
+endif
+
+%_defconfig: $(obj)/conf
+ $(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$@ $(Kconfig)
+
+configfiles=$(wildcard $(srctree)/kernel/configs/$@
$(srctree)/arch/$(SRCARCH)/configs/$@)
+
+%.config: $(obj)/conf
+ $(if $(call configfiles),, $(error No configuration exists for this
target on this architecture))
+ $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m
.config $(configfiles)
+ +$(Q)yes "" | $(MAKE) -f $(srctree)/Makefile oldconfig
+
+PHONY += kvmconfig
+kvmconfig: kvm_guest.config
+ @:
+
+PHONY += xenconfig
+xenconfig: xen.config
+ @:
+
+PHONY += tinyconfig
+tinyconfig:
+ $(Q)$(MAKE) -f $(srctree)/Makefile allnoconfig tiny.config
+
+# Help text used by make help
+help:
+ @echo ' config - Update current config utilising a
line-oriented program'
+ @echo ' nconfig - Update current config utilising a ncurses
menu based'
+ @echo ' program'
+ @echo ' menuconfig - Update current config utilising a menu
based program'
+ @echo ' xconfig - Update current config utilising a Qt based
front-end'
+ @echo ' gconfig - Update current config utilising a GTK+
based front-end'
+ @echo ' oldconfig - Update current config utilising a provided
.config as base'
+ @echo ' localmodconfig - Update current config disabling modules not
loaded'
+ @echo ' localyesconfig - Update current config converting local mods
to core'
+ @echo ' silentoldconfig - Same as oldconfig, but quietly,
additionally update deps'
+ @echo ' defconfig - New config with default from ARCH supplied
defconfig'
+ @echo ' savedefconfig - Save current config as ./defconfig (minimal
config)'
+ @echo ' allnoconfig - New config where all options are answered
with no'
+ @echo ' allyesconfig - New config where all options are accepted
with yes'
+ @echo ' allmodconfig - New config selecting modules when possible'
+ @echo ' alldefconfig - New config with all symbols set to default'
+ @echo ' randconfig - New config with random answer to all
options'
+ @echo ' listnewconfig - List new options'
+ @echo ' olddefconfig - Same as silentoldconfig but sets new
symbols to their'
+ @echo ' default value'
+ @echo ' kvmconfig - Enable additional options for kvm guest
kernel support'
+ @echo ' xenconfig - Enable additional options for xen dom0 and
guest kernel support'
+ @echo ' tinyconfig - Configure the tiniest possible kernel'
+
+# lxdialog stuff
+check-lxdialog := $(srctree)/$(src)/lxdialog/check-lxdialog.sh
+
+# Use recursively expanded variables so we do not call gcc unless
+# we really need to do so. (Do not call gcc as part of make mrproper)
+HOST_EXTRACFLAGS += $(shell $(CONFIG_SHELL) $(check-lxdialog) -ccflags) \
+ -DLOCALE
+
+# ===========================================================================
+# Shared Makefile for the various kconfig executables:
+# conf: Used for defconfig, oldconfig and related targets
+# nconf: Used for the nconfig target.
+# Utilizes ncurses
+# mconf: Used for the menuconfig target
+# Utilizes the lxdialog package
+# qconf: Used for the xconfig target
+# Based on Qt which needs to be installed to compile it
+# gconf: Used for the gconfig target
+# Based on GTK+ which needs to be installed to compile it
+# object files used by all kconfig flavours
+
+lxdialog := lxdialog/checklist.o lxdialog/util.o lxdialog/inputbox.o
+lxdialog += lxdialog/textbox.o lxdialog/yesno.o lxdialog/menubox.o
+
+conf-objs := conf.o zconf.tab.o
+mconf-objs := mconf.o zconf.tab.o $(lxdialog)
+nconf-objs := nconf.o zconf.tab.o nconf.gui.o
+kxgettext-objs := kxgettext.o zconf.tab.o
+qconf-cxxobjs := qconf.o
+qconf-objs := zconf.tab.o
+gconf-objs := gconf.o zconf.tab.o
+
+hostprogs-y := conf nconf mconf kxgettext qconf gconf
+
+clean-files := qconf.moc .tmp_qtcheck .tmp_gtkcheck
+clean-files += zconf.tab.c zconf.lex.c zconf.hash.c gconf.glade.h
+clean-files += config.pot linux.pot
+
+# Check that we have the required ncurses stuff installed for lxdialog
(menuconfig)
+PHONY += $(obj)/dochecklxdialog
+$(addprefix $(obj)/,$(lxdialog)): $(obj)/dochecklxdialog
+$(obj)/dochecklxdialog:
+ $(Q)$(CONFIG_SHELL) $(check-lxdialog) -check $(HOSTCC)
$(HOST_EXTRACFLAGS) $(HOSTLOADLIBES_mconf)
+
+always := dochecklxdialog
+
+# Add environment specific flags
+HOST_EXTRACFLAGS += $(shell $(CONFIG_SHELL) $(srctree)/$(src)/check.sh
$(HOSTCC) $(HOSTCFLAGS))
+
+# generated files seem to need this to find local include files
+HOSTCFLAGS_zconf.lex.o := -I$(src)
+HOSTCFLAGS_zconf.tab.o := -I$(src)
+
+LEX_PREFIX_zconf := zconf
+YACC_PREFIX_zconf := zconf
+
+HOSTLOADLIBES_qconf = $(KC_QT_LIBS)
+HOSTCXXFLAGS_qconf.o = $(KC_QT_CFLAGS)
+
+HOSTLOADLIBES_gconf = `pkg-config --libs gtk+-2.0 gmodule-2.0 libglade-2.0`
+HOSTCFLAGS_gconf.o = `pkg-config --cflags gtk+-2.0 gmodule-2.0
libglade-2.0` \
+ -Wno-missing-prototypes
+
+HOSTLOADLIBES_mconf = $(shell $(CONFIG_SHELL) $(check-lxdialog) -ldflags
$(HOSTCC))
+
+HOSTLOADLIBES_nconf = $(shell \
+ pkg-config --libs menuw panelw ncursesw
2>/dev/null \
+ || pkg-config --libs menu panel ncurses
2>/dev/null \
+ || echo "-lmenu -lpanel -lncurses" )
+$(obj)/qconf.o: $(obj)/.tmp_qtcheck
+
+ifeq ($(MAKECMDGOALS),xconfig)
+$(obj)/.tmp_qtcheck: $(src)/Makefile
+-include $(obj)/.tmp_qtcheck
+
+# Qt needs some extra effort...
+$(obj)/.tmp_qtcheck:
+ @set -e; $(kecho) " CHECK qt"; dir=""; pkg=""; \
+ if ! pkg-config --exists QtCore 2> /dev/null; then \
+ echo "* Unable to find the Qt4 tool qmake. Trying to use Qt3"; \
+ pkg-config --exists qt 2> /dev/null && pkg=qt; \
+ pkg-config --exists qt-mt 2> /dev/null && pkg=qt-mt; \
+ if [ -n "$$pkg" ]; then \
+ cflags="\$$(shell pkg-config $$pkg --cflags)"; \
+ libs="\$$(shell pkg-config $$pkg --libs)"; \
+ moc="\$$(shell pkg-config $$pkg --variable=prefix)/bin/moc"; \
+ dir="$$(pkg-config $$pkg --variable=prefix)"; \
+ else \
+ for d in $$QTDIR /usr/share/qt* /usr/lib/qt*; do \
+ if [ -f $$d/include/qconfig.h ]; then dir=$$d; break; fi; \
+ done; \
+ if [ -z "$$dir" ]; then \
+ echo >&2 "*"; \
+ echo >&2 "* Unable to find any Qt installation. Please make
sure that"; \
+ echo >&2 "* the Qt4 or Qt3 development package is correctly
installed and"; \
+ echo >&2 "* either qmake can be found or install pkg-config or
set"; \
+ echo >&2 "* the QTDIR environment variable to the correct
location."; \
+ echo >&2 "*"; \
+ false; \
+ fi; \
+ libpath=$$dir/lib; lib=qt; osdir=""; \
+ $(HOSTCXX) -print-multi-os-directory > /dev/null 2>&1 && \
+ osdir=x$$($(HOSTCXX) -print-multi-os-directory); \
+ test -d $$libpath/$$osdir && libpath=$$libpath/$$osdir; \
+ test -f $$libpath/libqt-mt.so && lib=qt-mt; \
+ cflags="-I$$dir/include"; \
+ libs="-L$$libpath -Wl,-rpath,$$libpath -l$$lib"; \
+ moc="$$dir/bin/moc"; \
+ fi; \
+ if [ ! -x $$dir/bin/moc -a -x /usr/bin/moc ]; then \
+ echo "*"; \
+ echo "* Unable to find $$dir/bin/moc, using /usr/bin/moc
instead."; \
+ echo "*"; \
+ moc="/usr/bin/moc"; \
+ fi; \
+ else \
+ cflags="\$$(shell pkg-config QtCore QtGui Qt3Support --cflags)"; \
+ libs="\$$(shell pkg-config QtCore QtGui Qt3Support --libs)"; \
+ moc="\$$(shell pkg-config QtCore --variable=moc_location)"; \
+ [ -n "$$moc" ] || moc="\$$(shell pkg-config QtCore
--variable=prefix)/bin/moc"; \
+ fi; \
+ echo "KC_QT_CFLAGS=$$cflags" > $@; \
+ echo "KC_QT_LIBS=$$libs" >> $@; \
+ echo "KC_QT_MOC=$$moc" >> $@
+endif
+
+$(obj)/gconf.o: $(obj)/.tmp_gtkcheck
+
+ifeq ($(MAKECMDGOALS),gconfig)
+-include $(obj)/.tmp_gtkcheck
+
+# GTK+ needs some extra effort, too...
+$(obj)/.tmp_gtkcheck:
+ @if `pkg-config --exists gtk+-2.0 gmodule-2.0 libglade-2.0`; then
\
+ if `pkg-config --atleast-version=2.0.0 gtk+-2.0`; then
\
+ touch $@;
\
+ else
\
+ echo >&2 "*";
\
+ echo >&2 "* GTK+ is present but version >= 2.0.0 is
required."; \
+ echo >&2 "*";
\
+ false;
\
+ fi
\
+ else
\
+ echo >&2 "*";
\
+ echo >&2 "* Unable to find the GTK+ installation. Please make
sure that"; \
+ echo >&2 "* the GTK+ 2.0 development package is correctly
installed..."; \
+ echo >&2 "* You need gtk+-2.0, glib-2.0 and libglade-2.0.";
\
+ echo >&2 "*";
\
+ false;
\
+ fi
+endif
+
+$(obj)/zconf.tab.o: $(obj)/zconf.lex.c $(obj)/zconf.hash.c
+
+$(obj)/qconf.o: $(obj)/qconf.moc
+
+quiet_cmd_moc = MOC $@
+ cmd_moc = $(KC_QT_MOC) -i $< -o $@
+
+$(obj)/%.moc: $(src)/%.h $(obj)/.tmp_qtcheck
+ $(call cmd,moc)
+
+# Extract gconf menu items for i18n support
+$(obj)/gconf.glade.h: $(obj)/gconf.glade
+ $(Q)intltool-extract --type=gettext/glade --srcdir=$(srctree) \
+ $(obj)/gconf.glade
diff --git a/xen/tools/kconfig/Makefile.host b/xen/tools/kconfig/Makefile.host
new file mode 100644
index 0000000..133edfa
--- /dev/null
+++ b/xen/tools/kconfig/Makefile.host
@@ -0,0 +1,128 @@
+# ==========================================================================
+# Building binaries on the host system
+# Binaries are used during the compilation of the kernel, for example
+# to preprocess a data file.
+#
+# Both C and C++ are supported, but preferred language is C for such utilities.
+#
+# Sample syntax (see Documentation/kbuild/makefiles.txt for reference)
+# hostprogs-y := bin2hex
+# Will compile bin2hex.c and create an executable named bin2hex
+#
+# hostprogs-y := lxdialog
+# lxdialog-objs := checklist.o lxdialog.o
+# Will compile lxdialog.c and checklist.c, and then link the executable
+# lxdialog, based on checklist.o and lxdialog.o
+#
+# hostprogs-y := qconf
+# qconf-cxxobjs := qconf.o
+# qconf-objs := menu.o
+# Will compile qconf as a C++ program, and menu as a C program.
+# They are linked as C++ code to the executable qconf
+
+__hostprogs := $(sort $(hostprogs-y) $(hostprogs-m))
+
+# C code
+# Executables compiled from a single .c file
+host-csingle := $(foreach m,$(__hostprogs), \
+ $(if $($(m)-objs)$($(m)-cxxobjs),,$(m)))
+
+# C executables linked based on several .o files
+host-cmulti := $(foreach m,$(__hostprogs),\
+ $(if $($(m)-cxxobjs),,$(if $($(m)-objs),$(m))))
+
+# Object (.o) files compiled from .c files
+host-cobjs := $(sort $(foreach m,$(__hostprogs),$($(m)-objs)))
+
+# C++ code
+# C++ executables compiled from at least one .cc file
+# and zero or more .c files
+host-cxxmulti := $(foreach m,$(__hostprogs),$(if $($(m)-cxxobjs),$(m)))
+
+# C++ Object (.o) files compiled from .cc files
+host-cxxobjs := $(sort $(foreach m,$(host-cxxmulti),$($(m)-cxxobjs)))
+
+# output directory for programs/.o files
+# hostprogs-y := tools/build may have been specified.
+# Retrieve also directory of .o files from prog-objs or prog-cxxobjs notation
+host-objdirs := $(dir $(__hostprogs) $(host-cobjs) $(host-cxxobjs))
+
+host-objdirs := $(strip $(sort $(filter-out ./,$(host-objdirs))))
+
+
+__hostprogs := $(addprefix $(obj)/,$(__hostprogs))
+host-csingle := $(addprefix $(obj)/,$(host-csingle))
+host-cmulti := $(addprefix $(obj)/,$(host-cmulti))
+host-cobjs := $(addprefix $(obj)/,$(host-cobjs))
+host-cxxmulti := $(addprefix $(obj)/,$(host-cxxmulti))
+host-cxxobjs := $(addprefix $(obj)/,$(host-cxxobjs))
+host-objdirs := $(addprefix $(obj)/,$(host-objdirs))
+
+obj-dirs += $(host-objdirs)
+
+#####
+# Handle options to gcc. Support building with separate output directory
+
+_hostc_flags = $(HOSTCFLAGS) $(HOST_EXTRACFLAGS) \
+ $(HOSTCFLAGS_$(basetarget).o)
+_hostcxx_flags = $(HOSTCXXFLAGS) $(HOST_EXTRACXXFLAGS) \
+ $(HOSTCXXFLAGS_$(basetarget).o)
+
+ifeq ($(KBUILD_SRC),)
+__hostc_flags = $(_hostc_flags)
+__hostcxx_flags = $(_hostcxx_flags)
+else
+__hostc_flags = -I$(obj) $(call flags,_hostc_flags)
+__hostcxx_flags = -I$(obj) $(call flags,_hostcxx_flags)
+endif
+
+hostc_flags = -Wp,-MD,$(depfile) $(__hostc_flags)
+hostcxx_flags = -Wp,-MD,$(depfile) $(__hostcxx_flags)
+
+#####
+# Compile programs on the host
+
+# Create executable from a single .c file
+# host-csingle -> Executable
+quiet_cmd_host-csingle = HOSTCC $@
+ cmd_host-csingle = $(HOSTCC) $(hostc_flags) -o $@ $< \
+ $(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
+$(host-csingle): $(obj)/%: $(src)/%.c FORCE
+ $(call if_changed_dep,host-csingle)
+
+# Link an executable based on list of .o files, all plain c
+# host-cmulti -> executable
+quiet_cmd_host-cmulti = HOSTLD $@
+ cmd_host-cmulti = $(HOSTCC) $(HOSTLDFLAGS) -o $@ \
+ $(addprefix $(obj)/,$($(@F)-objs)) \
+ $(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
+$(host-cmulti): FORCE
+ $(call if_changed,host-cmulti)
+$(call multi_depend, $(host-cmulti), , -objs)
+
+# Create .o file from a single .c file
+# host-cobjs -> .o
+quiet_cmd_host-cobjs = HOSTCC $@
+ cmd_host-cobjs = $(HOSTCC) $(hostc_flags) -c -o $@ $<
+$(host-cobjs): $(obj)/%.o: $(src)/%.c FORCE
+ $(call if_changed_dep,host-cobjs)
+
+# Link an executable based on list of .o files, a mixture of .c and .cc
+# host-cxxmulti -> executable
+quiet_cmd_host-cxxmulti = HOSTLD $@
+ cmd_host-cxxmulti = $(HOSTCXX) $(HOSTLDFLAGS) -o $@ \
+ $(foreach o,objs cxxobjs,\
+ $(addprefix $(obj)/,$($(@F)-$(o)))) \
+ $(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F))
+$(host-cxxmulti): FORCE
+ $(call if_changed,host-cxxmulti)
+$(call multi_depend, $(host-cxxmulti), , -objs -cxxobjs)
+
+# Create .o file from a single .cc (C++) file
+quiet_cmd_host-cxxobjs = HOSTCXX $@
+ cmd_host-cxxobjs = $(HOSTCXX) $(hostcxx_flags) -c -o $@ $<
+$(host-cxxobjs): $(obj)/%.o: $(src)/%.cc FORCE
+ $(call if_changed_dep,host-cxxobjs)
+
+targets += $(host-csingle) $(host-cmulti) $(host-cobjs)\
+ $(host-cxxmulti) $(host-cxxobjs)
diff --git a/xen/tools/kconfig/POTFILES.in b/xen/tools/kconfig/POTFILES.in
new file mode 100644
index 0000000..9674573
--- /dev/null
+++ b/xen/tools/kconfig/POTFILES.in
@@ -0,0 +1,12 @@
+scripts/kconfig/lxdialog/checklist.c
+scripts/kconfig/lxdialog/inputbox.c
+scripts/kconfig/lxdialog/menubox.c
+scripts/kconfig/lxdialog/textbox.c
+scripts/kconfig/lxdialog/util.c
+scripts/kconfig/lxdialog/yesno.c
+scripts/kconfig/mconf.c
+scripts/kconfig/conf.c
+scripts/kconfig/confdata.c
+scripts/kconfig/gconf.c
+scripts/kconfig/gconf.glade.h
+scripts/kconfig/qconf.cc
diff --git a/xen/tools/kconfig/check.sh b/xen/tools/kconfig/check.sh
new file mode 100755
index 0000000..55b79ba
--- /dev/null
+++ b/xen/tools/kconfig/check.sh
@@ -0,0 +1,13 @@
+#!/bin/sh
+# Needed for systems without gettext
+$* -x c -o /dev/null - > /dev/null 2>&1 << EOF
+#include <libintl.h>
+int main()
+{
+ gettext("");
+ return 0;
+}
+EOF
+if [ ! "$?" -eq "0" ]; then
+ echo -DKBUILD_NO_NLS;
+fi
diff --git a/xen/tools/kconfig/conf.c b/xen/tools/kconfig/conf.c
new file mode 100644
index 0000000..6c20431
--- /dev/null
+++ b/xen/tools/kconfig/conf.c
@@ -0,0 +1,722 @@
+/*
+ * Copyright (C) 2002 Roman Zippel <zippel@xxxxxxxxxxxxxx>
+ * Released under the terms of the GNU GPL v2.0.
+ */
+
+#include <locale.h>
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+#include <getopt.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <errno.h>
+
+#include "lkc.h"
+
+static void conf(struct menu *menu);
+static void check_conf(struct menu *menu);
+static void xfgets(char *str, int size, FILE *in);
+
+enum input_mode {
+ oldaskconfig,
+ silentoldconfig,
+ oldconfig,
+ allnoconfig,
+ allyesconfig,
+ allmodconfig,
+ alldefconfig,
+ randconfig,
+ defconfig,
+ savedefconfig,
+ listnewconfig,
+ olddefconfig,
+} input_mode = oldaskconfig;
+
+static int indent = 1;
+static int tty_stdio;
+static int valid_stdin = 1;
+static int sync_kconfig;
+static int conf_cnt;
+static char line[128];
+static struct menu *rootEntry;
+
+static void print_help(struct menu *menu)
+{
+ struct gstr help = str_new();
+
+ menu_get_ext_help(menu, &help);
+
+ printf("\n%s\n", str_get(&help));
+ str_free(&help);
+}
+
+static void strip(char *str)
+{
+ char *p = str;
+ int l;
+
+ while ((isspace(*p)))
+ p++;
+ l = strlen(p);
+ if (p != str)
+ memmove(str, p, l + 1);
+ if (!l)
+ return;
+ p = str + l - 1;
+ while ((isspace(*p)))
+ *p-- = 0;
+}
+
+static void check_stdin(void)
+{
+ if (!valid_stdin) {
+ printf(_("aborted!\n\n"));
+ printf(_("Console input/output is redirected. "));
+ printf(_("Run 'make oldconfig' to update configuration.\n\n"));
+ exit(1);
+ }
+}
+
+static int conf_askvalue(struct symbol *sym, const char *def)
+{
+ enum symbol_type type = sym_get_type(sym);
+
+ if (!sym_has_value(sym))
+ printf(_("(NEW) "));
+
+ line[0] = '\n';
+ line[1] = 0;
+
+ if (!sym_is_changable(sym)) {
+ printf("%s\n", def);
+ line[0] = '\n';
+ line[1] = 0;
+ return 0;
+ }
+
+ switch (input_mode) {
+ case oldconfig:
+ case silentoldconfig:
+ if (sym_has_value(sym)) {
+ printf("%s\n", def);
+ return 0;
+ }
+ check_stdin();
+ /* fall through */
+ case oldaskconfig:
+ fflush(stdout);
+ xfgets(line, 128, stdin);
+ if (!tty_stdio)
+ printf("\n");
+ return 1;
+ default:
+ break;
+ }
+
+ switch (type) {
+ case S_INT:
+ case S_HEX:
+ case S_STRING:
+ printf("%s\n", def);
+ return 1;
+ default:
+ ;
+ }
+ printf("%s", line);
+ return 1;
+}
+
+static int conf_string(struct menu *menu)
+{
+ struct symbol *sym = menu->sym;
+ const char *def;
+
+ while (1) {
+ printf("%*s%s ", indent - 1, "", _(menu->prompt->text));
+ printf("(%s) ", sym->name);
+ def = sym_get_string_value(sym);
+ if (sym_get_string_value(sym))
+ printf("[%s] ", def);
+ if (!conf_askvalue(sym, def))
+ return 0;
+ switch (line[0]) {
+ case '\n':
+ break;
+ case '?':
+ /* print help */
+ if (line[1] == '\n') {
+ print_help(menu);
+ def = NULL;
+ break;
+ }
+ /* fall through */
+ default:
+ line[strlen(line)-1] = 0;
+ def = line;
+ }
+ if (def && sym_set_string_value(sym, def))
+ return 0;
+ }
+}
+
+static int conf_sym(struct menu *menu)
+{
+ struct symbol *sym = menu->sym;
+ tristate oldval, newval;
+
+ while (1) {
+ printf("%*s%s ", indent - 1, "", _(menu->prompt->text));
+ if (sym->name)
+ printf("(%s) ", sym->name);
+ putchar('[');
+ oldval = sym_get_tristate_value(sym);
+ switch (oldval) {
+ case no:
+ putchar('N');
+ break;
+ case mod:
+ putchar('M');
+ break;
+ case yes:
+ putchar('Y');
+ break;
+ }
+ if (oldval != no && sym_tristate_within_range(sym, no))
+ printf("/n");
+ if (oldval != mod && sym_tristate_within_range(sym, mod))
+ printf("/m");
+ if (oldval != yes && sym_tristate_within_range(sym, yes))
+ printf("/y");
+ if (menu_has_help(menu))
+ printf("/?");
+ printf("] ");
+ if (!conf_askvalue(sym, sym_get_string_value(sym)))
+ return 0;
+ strip(line);
+
+ switch (line[0]) {
+ case 'n':
+ case 'N':
+ newval = no;
+ if (!line[1] || !strcmp(&line[1], "o"))
+ break;
+ continue;
+ case 'm':
+ case 'M':
+ newval = mod;
+ if (!line[1])
+ break;
+ continue;
+ case 'y':
+ case 'Y':
+ newval = yes;
+ if (!line[1] || !strcmp(&line[1], "es"))
+ break;
+ continue;
+ case 0:
+ newval = oldval;
+ break;
+ case '?':
+ goto help;
+ default:
+ continue;
+ }
+ if (sym_set_tristate_value(sym, newval))
+ return 0;
+help:
+ print_help(menu);
+ }
+}
+
+static int conf_choice(struct menu *menu)
+{
+ struct symbol *sym, *def_sym;
+ struct menu *child;
+ bool is_new;
+
+ sym = menu->sym;
+ is_new = !sym_has_value(sym);
+ if (sym_is_changable(sym)) {
+ conf_sym(menu);
+ sym_calc_value(sym);
+ switch (sym_get_tristate_value(sym)) {
+ case no:
+ return 1;
+ case mod:
+ return 0;
+ case yes:
+ break;
+ }
+ } else {
+ switch (sym_get_tristate_value(sym)) {
+ case no:
+ return 1;
+ case mod:
+ printf("%*s%s\n", indent - 1, "",
_(menu_get_prompt(menu)));
+ return 0;
+ case yes:
+ break;
+ }
+ }
+
+ while (1) {
+ int cnt, def;
+
+ printf("%*s%s\n", indent - 1, "", _(menu_get_prompt(menu)));
+ def_sym = sym_get_choice_value(sym);
+ cnt = def = 0;
+ line[0] = 0;
+ for (child = menu->list; child; child = child->next) {
+ if (!menu_is_visible(child))
+ continue;
+ if (!child->sym) {
+ printf("%*c %s\n", indent, '*',
_(menu_get_prompt(child)));
+ continue;
+ }
+ cnt++;
+ if (child->sym == def_sym) {
+ def = cnt;
+ printf("%*c", indent, '>');
+ } else
+ printf("%*c", indent, ' ');
+ printf(" %d. %s", cnt, _(menu_get_prompt(child)));
+ if (child->sym->name)
+ printf(" (%s)", child->sym->name);
+ if (!sym_has_value(child->sym))
+ printf(_(" (NEW)"));
+ printf("\n");
+ }
+ printf(_("%*schoice"), indent - 1, "");
+ if (cnt == 1) {
+ printf("[1]: 1\n");
+ goto conf_childs;
+ }
+ printf("[1-%d", cnt);
+ if (menu_has_help(menu))
+ printf("?");
+ printf("]: ");
+ switch (input_mode) {
+ case oldconfig:
+ case silentoldconfig:
+ if (!is_new) {
+ cnt = def;
+ printf("%d\n", cnt);
+ break;
+ }
+ check_stdin();
+ /* fall through */
+ case oldaskconfig:
+ fflush(stdout);
+ xfgets(line, 128, stdin);
+ strip(line);
+ if (line[0] == '?') {
+ print_help(menu);
+ continue;
+ }
+ if (!line[0])
+ cnt = def;
+ else if (isdigit(line[0]))
+ cnt = atoi(line);
+ else
+ continue;
+ break;
+ default:
+ break;
+ }
+
+ conf_childs:
+ for (child = menu->list; child; child = child->next) {
+ if (!child->sym || !menu_is_visible(child))
+ continue;
+ if (!--cnt)
+ break;
+ }
+ if (!child)
+ continue;
+ if (line[0] && line[strlen(line) - 1] == '?') {
+ print_help(child);
+ continue;
+ }
+ sym_set_choice_value(sym, child->sym);
+ for (child = child->list; child; child = child->next) {
+ indent += 2;
+ conf(child);
+ indent -= 2;
+ }
+ return 1;
+ }
+}
+
+static void conf(struct menu *menu)
+{
+ struct symbol *sym;
+ struct property *prop;
+ struct menu *child;
+
+ if (!menu_is_visible(menu))
+ return;
+
+ sym = menu->sym;
+ prop = menu->prompt;
+ if (prop) {
+ const char *prompt;
+
+ switch (prop->type) {
+ case P_MENU:
+ if ((input_mode == silentoldconfig ||
+ input_mode == listnewconfig ||
+ input_mode == olddefconfig) &&
+ rootEntry != menu) {
+ check_conf(menu);
+ return;
+ }
+ /* fall through */
+ case P_COMMENT:
+ prompt = menu_get_prompt(menu);
+ if (prompt)
+ printf("%*c\n%*c %s\n%*c\n",
+ indent, '*',
+ indent, '*', _(prompt),
+ indent, '*');
+ default:
+ ;
+ }
+ }
+
+ if (!sym)
+ goto conf_childs;
+
+ if (sym_is_choice(sym)) {
+ conf_choice(menu);
+ if (sym->curr.tri != mod)
+ return;
+ goto conf_childs;
+ }
+
+ switch (sym->type) {
+ case S_INT:
+ case S_HEX:
+ case S_STRING:
+ conf_string(menu);
+ break;
+ default:
+ conf_sym(menu);
+ break;
+ }
+
+conf_childs:
+ if (sym)
+ indent += 2;
+ for (child = menu->list; child; child = child->next)
+ conf(child);
+ if (sym)
+ indent -= 2;
+}
+
+static void check_conf(struct menu *menu)
+{
+ struct symbol *sym;
+ struct menu *child;
+
+ if (!menu_is_visible(menu))
+ return;
+
+ sym = menu->sym;
+ if (sym && !sym_has_value(sym)) {
+ if (sym_is_changable(sym) ||
+ (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes))
{
+ if (input_mode == listnewconfig) {
+ if (sym->name && !sym_is_choice_value(sym)) {
+ printf("%s%s\n", CONFIG_, sym->name);
+ }
+ } else if (input_mode != olddefconfig) {
+ if (!conf_cnt++)
+ printf(_("*\n* Restart
config...\n*\n"));
+ rootEntry = menu_get_parent_menu(menu);
+ conf(rootEntry);
+ }
+ }
+ }
+
+ for (child = menu->list; child; child = child->next)
+ check_conf(child);
+}
+
+static struct option long_opts[] = {
+ {"oldaskconfig", no_argument, NULL, oldaskconfig},
+ {"oldconfig", no_argument, NULL, oldconfig},
+ {"silentoldconfig", no_argument, NULL, silentoldconfig},
+ {"defconfig", optional_argument, NULL, defconfig},
+ {"savedefconfig", required_argument, NULL, savedefconfig},
+ {"allnoconfig", no_argument, NULL, allnoconfig},
+ {"allyesconfig", no_argument, NULL, allyesconfig},
+ {"allmodconfig", no_argument, NULL, allmodconfig},
+ {"alldefconfig", no_argument, NULL, alldefconfig},
+ {"randconfig", no_argument, NULL, randconfig},
+ {"listnewconfig", no_argument, NULL, listnewconfig},
+ {"olddefconfig", no_argument, NULL, olddefconfig},
+ /*
+ * oldnoconfig is an alias of olddefconfig, because people already
+ * are dependent on its behavior(sets new symbols to their default
+ * value but not 'n') with the counter-intuitive name.
+ */
+ {"oldnoconfig", no_argument, NULL, olddefconfig},
+ {NULL, 0, NULL, 0}
+};
+
+static void conf_usage(const char *progname)
+{
+
+ printf("Usage: %s [-s] [option] <kconfig-file>\n", progname);
+ printf("[option] is _one_ of the following:\n");
+ printf(" --listnewconfig List new options\n");
+ printf(" --oldaskconfig Start a new configuration using a
line-oriented program\n");
+ printf(" --oldconfig Update a configuration using a
provided .config as base\n");
+ printf(" --silentoldconfig Same as oldconfig, but quietly,
additionally update deps\n");
+ printf(" --olddefconfig Same as silentoldconfig but sets new
symbols to their default value\n");
+ printf(" --oldnoconfig An alias of olddefconfig\n");
+ printf(" --defconfig <file> New config with default defined in
<file>\n");
+ printf(" --savedefconfig <file> Save the minimal current
configuration to <file>\n");
+ printf(" --allnoconfig New config where all options are
answered with no\n");
+ printf(" --allyesconfig New config where all options are
answered with yes\n");
+ printf(" --allmodconfig New config where all options are
answered with mod\n");
+ printf(" --alldefconfig New config with all symbols set to
default\n");
+ printf(" --randconfig New config with random answer to all
options\n");
+}
+
+int main(int ac, char **av)
+{
+ const char *progname = av[0];
+ int opt;
+ const char *name, *defconfig_file = NULL /* gcc uninit */;
+ struct stat tmpstat;
+
+ setlocale(LC_ALL, "");
+ bindtextdomain(PACKAGE, LOCALEDIR);
+ textdomain(PACKAGE);
+
+ tty_stdio = isatty(0) && isatty(1) && isatty(2);
+
+ while ((opt = getopt_long(ac, av, "s", long_opts, NULL)) != -1) {
+ if (opt == 's') {
+ conf_set_message_callback(NULL);
+ continue;
+ }
+ input_mode = (enum input_mode)opt;
+ switch (opt) {
+ case silentoldconfig:
+ sync_kconfig = 1;
+ break;
+ case defconfig:
+ case savedefconfig:
+ defconfig_file = optarg;
+ break;
+ case randconfig:
+ {
+ struct timeval now;
+ unsigned int seed;
+ char *seed_env;
+
+ /*
+ * Use microseconds derived seed,
+ * compensate for systems where it may be zero
+ */
+ gettimeofday(&now, NULL);
+ seed = (unsigned int)((now.tv_sec + 1) * (now.tv_usec +
1));
+
+ seed_env = getenv("KCONFIG_SEED");
+ if( seed_env && *seed_env ) {
+ char *endp;
+ int tmp = (int)strtol(seed_env, &endp, 0);
+ if (*endp == '\0') {
+ seed = tmp;
+ }
+ }
+ fprintf( stderr, "KCONFIG_SEED=0x%X\n", seed );
+ srand(seed);
+ break;
+ }
+ case oldaskconfig:
+ case oldconfig:
+ case allnoconfig:
+ case allyesconfig:
+ case allmodconfig:
+ case alldefconfig:
+ case listnewconfig:
+ case olddefconfig:
+ break;
+ case '?':
+ conf_usage(progname);
+ exit(1);
+ break;
+ }
+ }
+ if (ac == optind) {
+ printf(_("%s: Kconfig file missing\n"), av[0]);
+ conf_usage(progname);
+ exit(1);
+ }
+ name = av[optind];
+ conf_parse(name);
+ //zconfdump(stdout);
+ if (sync_kconfig) {
+ name = conf_get_configname();
+ if (stat(name, &tmpstat)) {
+ fprintf(stderr, _("***\n"
+ "*** Configuration file \"%s\" not found!\n"
+ "***\n"
+ "*** Please run some configurator (e.g. \"make
oldconfig\" or\n"
+ "*** \"make menuconfig\" or \"make
xconfig\").\n"
+ "***\n"), name);
+ exit(1);
+ }
+ }
+
+ switch (input_mode) {
+ case defconfig:
+ if (!defconfig_file)
+ defconfig_file = conf_get_default_confname();
+ if (conf_read(defconfig_file)) {
+ printf(_("***\n"
+ "*** Can't find default configuration \"%s\"!\n"
+ "***\n"), defconfig_file);
+ exit(1);
+ }
+ break;
+ case savedefconfig:
+ case silentoldconfig:
+ case oldaskconfig:
+ case oldconfig:
+ case listnewconfig:
+ case olddefconfig:
+ conf_read(NULL);
+ break;
+ case allnoconfig:
+ case allyesconfig:
+ case allmodconfig:
+ case alldefconfig:
+ case randconfig:
+ name = getenv("KCONFIG_ALLCONFIG");
+ if (!name)
+ break;
+ if ((strcmp(name, "") != 0) && (strcmp(name, "1") != 0)) {
+ if (conf_read_simple(name, S_DEF_USER)) {
+ fprintf(stderr,
+ _("*** Can't read seed configuration
\"%s\"!\n"),
+ name);
+ exit(1);
+ }
+ break;
+ }
+ switch (input_mode) {
+ case allnoconfig: name = "allno.config"; break;
+ case allyesconfig: name = "allyes.config"; break;
+ case allmodconfig: name = "allmod.config"; break;
+ case alldefconfig: name = "alldef.config"; break;
+ case randconfig: name = "allrandom.config"; break;
+ default: break;
+ }
+ if (conf_read_simple(name, S_DEF_USER) &&
+ conf_read_simple("all.config", S_DEF_USER)) {
+ fprintf(stderr,
+ _("*** KCONFIG_ALLCONFIG set, but no \"%s\" or
\"all.config\" file found\n"),
+ name);
+ exit(1);
+ }
+ break;
+ default:
+ break;
+ }
+
+ if (sync_kconfig) {
+ if (conf_get_changed()) {
+ name = getenv("KCONFIG_NOSILENTUPDATE");
+ if (name && *name) {
+ fprintf(stderr,
+ _("\n*** The configuration requires
explicit update.\n\n"));
+ return 1;
+ }
+ }
+ valid_stdin = tty_stdio;
+ }
+
+ switch (input_mode) {
+ case allnoconfig:
+ conf_set_all_new_symbols(def_no);
+ break;
+ case allyesconfig:
+ conf_set_all_new_symbols(def_yes);
+ break;
+ case allmodconfig:
+ conf_set_all_new_symbols(def_mod);
+ break;
+ case alldefconfig:
+ conf_set_all_new_symbols(def_default);
+ break;
+ case randconfig:
+ /* Really nothing to do in this loop */
+ while (conf_set_all_new_symbols(def_random)) ;
+ break;
+ case defconfig:
+ conf_set_all_new_symbols(def_default);
+ break;
+ case savedefconfig:
+ break;
+ case oldaskconfig:
+ rootEntry = &rootmenu;
+ conf(&rootmenu);
+ input_mode = silentoldconfig;
+ /* fall through */
+ case oldconfig:
+ case listnewconfig:
+ case olddefconfig:
+ case silentoldconfig:
+ /* Update until a loop caused no more changes */
+ do {
+ conf_cnt = 0;
+ check_conf(&rootmenu);
+ } while (conf_cnt &&
+ (input_mode != listnewconfig &&
+ input_mode != olddefconfig));
+ break;
+ }
+
+ if (sync_kconfig) {
+ /* silentoldconfig is used during the build so we shall update
autoconf.
+ * All other commands are only used to generate a config.
+ */
+ if (conf_get_changed() && conf_write(NULL)) {
+ fprintf(stderr, _("\n*** Error during writing of the
configuration.\n\n"));
+ exit(1);
+ }
+ if (conf_write_autoconf()) {
+ fprintf(stderr, _("\n*** Error during update of the
configuration.\n\n"));
+ return 1;
+ }
+ } else if (input_mode == savedefconfig) {
+ if (conf_write_defconfig(defconfig_file)) {
+ fprintf(stderr, _("n*** Error while saving defconfig
to: %s\n\n"),
+ defconfig_file);
+ return 1;
+ }
+ } else if (input_mode != listnewconfig) {
+ if (conf_write(NULL)) {
+ fprintf(stderr, _("\n*** Error during writing of the
configuration.\n\n"));
+ exit(1);
+ }
+ }
+ return 0;
+}
+
+/*
+ * Helper function to facilitate fgets() by Jean Sacren.
+ */
+void xfgets(char *str, int size, FILE *in)
+{
+ if (fgets(str, size, in) == NULL)
+ fprintf(stderr, "\nError in reading or end of file.\n");
+}
diff --git a/xen/tools/kconfig/confdata.c b/xen/tools/kconfig/confdata.c
new file mode 100644
index 0000000..0b7dc2f
--- /dev/null
+++ b/xen/tools/kconfig/confdata.c
@@ -0,0 +1,1245 @@
+/*
+ * Copyright (C) 2002 Roman Zippel <zippel@xxxxxxxxxxxxxx>
+ * Released under the terms of the GNU GPL v2.0.
+ */
+
+#include <sys/stat.h>
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+
+#include "lkc.h"
+
+struct conf_printer {
+ void (*print_symbol)(FILE *, struct symbol *, const char *, void *);
+ void (*print_comment)(FILE *, const char *, void *);
+};
+
+static void conf_warning(const char *fmt, ...)
+ __attribute__ ((format (printf, 1, 2)));
+
+static void conf_message(const char *fmt, ...)
+ __attribute__ ((format (printf, 1, 2)));
+
+static const char *conf_filename;
+static int conf_lineno, conf_warnings, conf_unsaved;
+
+const char conf_defname[] = "arch/$ARCH/defconfig";
+
+static void conf_warning(const char *fmt, ...)
+{
+ va_list ap;
+ va_start(ap, fmt);
+ fprintf(stderr, "%s:%d:warning: ", conf_filename, conf_lineno);
+ vfprintf(stderr, fmt, ap);
+ fprintf(stderr, "\n");
+ va_end(ap);
+ conf_warnings++;
+}
+
+static void conf_default_message_callback(const char *fmt, va_list ap)
+{
+ printf("#\n# ");
+ vprintf(fmt, ap);
+ printf("\n#\n");
+}
+
+static void (*conf_message_callback) (const char *fmt, va_list ap) =
+ conf_default_message_callback;
+void conf_set_message_callback(void (*fn) (const char *fmt, va_list ap))
+{
+ conf_message_callback = fn;
+}
+
+static void conf_message(const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ if (conf_message_callback)
+ conf_message_callback(fmt, ap);
+ va_end(ap);
+}
+
+const char *conf_get_configname(void)
+{
+ char *name = getenv("KCONFIG_CONFIG");
+
+ return name ? name : ".config";
+}
+
+const char *conf_get_autoconfig_name(void)
+{
+ char *name = getenv("KCONFIG_AUTOCONFIG");
+
+ return name ? name : "include/config/auto.conf";
+}
+
+static char *conf_expand_value(const char *in)
+{
+ struct symbol *sym;
+ const char *src;
+ static char res_value[SYMBOL_MAXLENGTH];
+ char *dst, name[SYMBOL_MAXLENGTH];
+
+ res_value[0] = 0;
+ dst = name;
+ while ((src = strchr(in, '$'))) {
+ strncat(res_value, in, src - in);
+ src++;
+ dst = name;
+ while (isalnum(*src) || *src == '_')
+ *dst++ = *src++;
+ *dst = 0;
+ sym = sym_lookup(name, 0);
+ sym_calc_value(sym);
+ strcat(res_value, sym_get_string_value(sym));
+ in = src;
+ }
+ strcat(res_value, in);
+
+ return res_value;
+}
+
+char *conf_get_default_confname(void)
+{
+ struct stat buf;
+ static char fullname[PATH_MAX+1];
+ char *env, *name;
+
+ name = conf_expand_value(conf_defname);
+ env = getenv(SRCTREE);
+ if (env) {
+ sprintf(fullname, "%s/%s", env, name);
+ if (!stat(fullname, &buf))
+ return fullname;
+ }
+ return name;
+}
+
+static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char
*p)
+{
+ char *p2;
+
+ switch (sym->type) {
+ case S_TRISTATE:
+ if (p[0] == 'm') {
+ sym->def[def].tri = mod;
+ sym->flags |= def_flags;
+ break;
+ }
+ /* fall through */
+ case S_BOOLEAN:
+ if (p[0] == 'y') {
+ sym->def[def].tri = yes;
+ sym->flags |= def_flags;
+ break;
+ }
+ if (p[0] == 'n') {
+ sym->def[def].tri = no;
+ sym->flags |= def_flags;
+ break;
+ }
+ if (def != S_DEF_AUTO)
+ conf_warning("symbol value '%s' invalid for %s",
+ p, sym->name);
+ return 1;
+ case S_OTHER:
+ if (*p != '"') {
+ for (p2 = p; *p2 && !isspace(*p2); p2++)
+ ;
+ sym->type = S_STRING;
+ goto done;
+ }
+ /* fall through */
+ case S_STRING:
+ if (*p++ != '"')
+ break;
+ for (p2 = p; (p2 = strpbrk(p2, "\"\\")); p2++) {
+ if (*p2 == '"') {
+ *p2 = 0;
+ break;
+ }
+ memmove(p2, p2 + 1, strlen(p2));
+ }
+ if (!p2) {
+ if (def != S_DEF_AUTO)
+ conf_warning("invalid string found");
+ return 1;
+ }
+ /* fall through */
+ case S_INT:
+ case S_HEX:
+ done:
+ if (sym_string_valid(sym, p)) {
+ sym->def[def].val = strdup(p);
+ sym->flags |= def_flags;
+ } else {
+ if (def != S_DEF_AUTO)
+ conf_warning("symbol value '%s' invalid for %s",
+ p, sym->name);
+ return 1;
+ }
+ break;
+ default:
+ ;
+ }
+ return 0;
+}
+
+#define LINE_GROWTH 16
+static int add_byte(int c, char **lineptr, size_t slen, size_t *n)
+{
+ char *nline;
+ size_t new_size = slen + 1;
+ if (new_size > *n) {
+ new_size += LINE_GROWTH - 1;
+ new_size *= 2;
+ nline = realloc(*lineptr, new_size);
+ if (!nline)
+ return -1;
+
+ *lineptr = nline;
+ *n = new_size;
+ }
+
+ (*lineptr)[slen] = c;
+
+ return 0;
+}
+
+static ssize_t compat_getline(char **lineptr, size_t *n, FILE *stream)
+{
+ char *line = *lineptr;
+ size_t slen = 0;
+
+ for (;;) {
+ int c = getc(stream);
+
+ switch (c) {
+ case '\n':
+ if (add_byte(c, &line, slen, n) < 0)
+ goto e_out;
+ slen++;
+ /* fall through */
+ case EOF:
+ if (add_byte('\0', &line, slen, n) < 0)
+ goto e_out;
+ *lineptr = line;
+ if (slen == 0)
+ return -1;
+ return slen;
+ default:
+ if (add_byte(c, &line, slen, n) < 0)
+ goto e_out;
+ slen++;
+ }
+ }
+
+e_out:
+ line[slen-1] = '\0';
+ *lineptr = line;
+ return -1;
+}
+
+int conf_read_simple(const char *name, int def)
+{
+ FILE *in = NULL;
+ char *line = NULL;
+ size_t line_asize = 0;
+ char *p, *p2;
+ struct symbol *sym;
+ int i, def_flags;
+
+ if (name) {
+ in = zconf_fopen(name);
+ } else {
+ struct property *prop;
+
+ name = conf_get_configname();
+ in = zconf_fopen(name);
+ if (in)
+ goto load;
+ sym_add_change_count(1);
+ if (!sym_defconfig_list) {
+ sym_calc_value(modules_sym);
+ return 1;
+ }
+
+ for_all_defaults(sym_defconfig_list, prop) {
+ if (expr_calc_value(prop->visible.expr) == no ||
+ prop->expr->type != E_SYMBOL)
+ continue;
+ name = conf_expand_value(prop->expr->left.sym->name);
+ in = zconf_fopen(name);
+ if (in) {
+ conf_message(_("using defaults found in %s"),
+ name);
+ goto load;
+ }
+ }
+ }
+ if (!in)
+ return 1;
+
+load:
+ conf_filename = name;
+ conf_lineno = 0;
+ conf_warnings = 0;
+ conf_unsaved = 0;
+
+ def_flags = SYMBOL_DEF << def;
+ for_all_symbols(i, sym) {
+ sym->flags |= SYMBOL_CHANGED;
+ sym->flags &= ~(def_flags|SYMBOL_VALID);
+ if (sym_is_choice(sym))
+ sym->flags |= def_flags;
+ switch (sym->type) {
+ case S_INT:
+ case S_HEX:
+ case S_STRING:
+ if (sym->def[def].val)
+ free(sym->def[def].val);
+ /* fall through */
+ default:
+ sym->def[def].val = NULL;
+ sym->def[def].tri = no;
+ }
+ }
+
+ while (compat_getline(&line, &line_asize, in) != -1) {
+ conf_lineno++;
+ sym = NULL;
+ if (line[0] == '#') {
+ if (memcmp(line + 2, CONFIG_, strlen(CONFIG_)))
+ continue;
+ p = strchr(line + 2 + strlen(CONFIG_), ' ');
+ if (!p)
+ continue;
+ *p++ = 0;
+ if (strncmp(p, "is not set", 10))
+ continue;
+ if (def == S_DEF_USER) {
+ sym = sym_find(line + 2 + strlen(CONFIG_));
+ if (!sym) {
+ sym_add_change_count(1);
+ goto setsym;
+ }
+ } else {
+ sym = sym_lookup(line + 2 + strlen(CONFIG_), 0);
+ if (sym->type == S_UNKNOWN)
+ sym->type = S_BOOLEAN;
+ }
+ if (sym->flags & def_flags) {
+ conf_warning("override: reassigning to symbol
%s", sym->name);
+ }
+ switch (sym->type) {
+ case S_BOOLEAN:
+ case S_TRISTATE:
+ sym->def[def].tri = no;
+ sym->flags |= def_flags;
+ break;
+ default:
+ ;
+ }
+ } else if (memcmp(line, CONFIG_, strlen(CONFIG_)) == 0) {
+ p = strchr(line + strlen(CONFIG_), '=');
+ if (!p)
+ continue;
+ *p++ = 0;
+ p2 = strchr(p, '\n');
+ if (p2) {
+ *p2-- = 0;
+ if (*p2 == '\r')
+ *p2 = 0;
+ }
+ if (def == S_DEF_USER) {
+ sym = sym_find(line + strlen(CONFIG_));
+ if (!sym) {
+ sym_add_change_count(1);
+ goto setsym;
+ }
+ } else {
+ sym = sym_lookup(line + strlen(CONFIG_), 0);
+ if (sym->type == S_UNKNOWN)
+ sym->type = S_OTHER;
+ }
+ if (sym->flags & def_flags) {
+ conf_warning("override: reassigning to symbol
%s", sym->name);
+ }
+ if (conf_set_sym_val(sym, def, def_flags, p))
+ continue;
+ } else {
+ if (line[0] != '\r' && line[0] != '\n')
+ conf_warning("unexpected data");
+ continue;
+ }
+setsym:
+ if (sym && sym_is_choice_value(sym)) {
+ struct symbol *cs =
prop_get_symbol(sym_get_choice_prop(sym));
+ switch (sym->def[def].tri) {
+ case no:
+ break;
+ case mod:
+ if (cs->def[def].tri == yes) {
+ conf_warning("%s creates inconsistent
choice state", sym->name);
+ cs->flags &= ~def_flags;
+ }
+ break;
+ case yes:
+ if (cs->def[def].tri != no)
+ conf_warning("override: %s changes
choice state", sym->name);
+ cs->def[def].val = sym;
+ break;
+ }
+ cs->def[def].tri = EXPR_OR(cs->def[def].tri,
sym->def[def].tri);
+ }
+ }
+ free(line);
+ fclose(in);
+ sym_calc_value(modules_sym);
+ return 0;
+}
+
+int conf_read(const char *name)
+{
+ struct symbol *sym;
+ int i;
+
+ sym_set_change_count(0);
+
+ if (conf_read_simple(name, S_DEF_USER))
+ return 1;
+
+ for_all_symbols(i, sym) {
+ sym_calc_value(sym);
+ if (sym_is_choice(sym) || (sym->flags & SYMBOL_AUTO))
+ continue;
+ if (sym_has_value(sym) && (sym->flags & SYMBOL_WRITE)) {
+ /* check that calculated value agrees with saved value
*/
+ switch (sym->type) {
+ case S_BOOLEAN:
+ case S_TRISTATE:
+ if (sym->def[S_DEF_USER].tri !=
sym_get_tristate_value(sym))
+ break;
+ if (!sym_is_choice(sym))
+ continue;
+ /* fall through */
+ default:
+ if (!strcmp(sym->curr.val,
sym->def[S_DEF_USER].val))
+ continue;
+ break;
+ }
+ } else if (!sym_has_value(sym) && !(sym->flags & SYMBOL_WRITE))
+ /* no previous value and not saved */
+ continue;
+ conf_unsaved++;
+ /* maybe print value in verbose mode... */
+ }
+
+ for_all_symbols(i, sym) {
+ if (sym_has_value(sym) && !sym_is_choice_value(sym)) {
+ /* Reset values of generates values, so they'll appear
+ * as new, if they should become visible, but that
+ * doesn't quite work if the Kconfig and the saved
+ * configuration disagree.
+ */
+ if (sym->visible == no && !conf_unsaved)
+ sym->flags &= ~SYMBOL_DEF_USER;
+ switch (sym->type) {
+ case S_STRING:
+ case S_INT:
+ case S_HEX:
+ /* Reset a string value if it's out of range */
+ if (sym_string_within_range(sym,
sym->def[S_DEF_USER].val))
+ break;
+ sym->flags &= ~(SYMBOL_VALID|SYMBOL_DEF_USER);
+ conf_unsaved++;
+ break;
+ default:
+ break;
+ }
+ }
+ }
+
+ sym_add_change_count(conf_warnings || conf_unsaved);
+
+ return 0;
+}
+
+/*
+ * Kconfig configuration printer
+ *
+ * This printer is used when generating the resulting configuration after
+ * kconfig invocation and `defconfig' files. Unset symbol might be omitted by
+ * passing a non-NULL argument to the printer.
+ *
+ */
+static void
+kconfig_print_symbol(FILE *fp, struct symbol *sym, const char *value, void
*arg)
+{
+
+ switch (sym->type) {
+ case S_BOOLEAN:
+ case S_TRISTATE:
+ if (*value == 'n') {
+ bool skip_unset = (arg != NULL);
+
+ if (!skip_unset)
+ fprintf(fp, "# %s%s is not set\n",
+ CONFIG_, sym->name);
+ return;
+ }
+ break;
+ default:
+ break;
+ }
+
+ fprintf(fp, "%s%s=%s\n", CONFIG_, sym->name, value);
+}
+
+static void
+kconfig_print_comment(FILE *fp, const char *value, void *arg)
+{
+ const char *p = value;
+ size_t l;
+
+ for (;;) {
+ l = strcspn(p, "\n");
+ fprintf(fp, "#");
+ if (l) {
+ fprintf(fp, " ");
+ xfwrite(p, l, 1, fp);
+ p += l;
+ }
+ fprintf(fp, "\n");
+ if (*p++ == '\0')
+ break;
+ }
+}
+
+static struct conf_printer kconfig_printer_cb =
+{
+ .print_symbol = kconfig_print_symbol,
+ .print_comment = kconfig_print_comment,
+};
+
+/*
+ * Header printer
+ *
+ * This printer is used when generating the `include/generated/autoconf.h'
file.
+ */
+static void
+header_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
+{
+
+ switch (sym->type) {
+ case S_BOOLEAN:
+ case S_TRISTATE: {
+ const char *suffix = "";
+
+ switch (*value) {
+ case 'n':
+ break;
+ case 'm':
+ suffix = "_MODULE";
+ /* fall through */
+ default:
+ fprintf(fp, "#define %s%s%s 1\n",
+ CONFIG_, sym->name, suffix);
+ }
+ break;
+ }
+ case S_HEX: {
+ const char *prefix = "";
+
+ if (value[0] != '0' || (value[1] != 'x' && value[1] != 'X'))
+ prefix = "0x";
+ fprintf(fp, "#define %s%s %s%s\n",
+ CONFIG_, sym->name, prefix, value);
+ break;
+ }
+ case S_STRING:
+ case S_INT:
+ fprintf(fp, "#define %s%s %s\n",
+ CONFIG_, sym->name, value);
+ break;
+ default:
+ break;
+ }
+
+}
+
+static void
+header_print_comment(FILE *fp, const char *value, void *arg)
+{
+ const char *p = value;
+ size_t l;
+
+ fprintf(fp, "/*\n");
+ for (;;) {
+ l = strcspn(p, "\n");
+ fprintf(fp, " *");
+ if (l) {
+ fprintf(fp, " ");
+ xfwrite(p, l, 1, fp);
+ p += l;
+ }
+ fprintf(fp, "\n");
+ if (*p++ == '\0')
+ break;
+ }
+ fprintf(fp, " */\n");
+}
+
+static struct conf_printer header_printer_cb =
+{
+ .print_symbol = header_print_symbol,
+ .print_comment = header_print_comment,
+};
+
+/*
+ * Tristate printer
+ *
+ * This printer is used when generating the `include/config/tristate.conf'
file.
+ */
+static void
+tristate_print_symbol(FILE *fp, struct symbol *sym, const char *value, void
*arg)
+{
+
+ if (sym->type == S_TRISTATE && *value != 'n')
+ fprintf(fp, "%s%s=%c\n", CONFIG_, sym->name,
(char)toupper(*value));
+}
+
+static struct conf_printer tristate_printer_cb =
+{
+ .print_symbol = tristate_print_symbol,
+ .print_comment = kconfig_print_comment,
+};
+
+static void conf_write_symbol(FILE *fp, struct symbol *sym,
+ struct conf_printer *printer, void *printer_arg)
+{
+ const char *str;
+
+ switch (sym->type) {
+ case S_OTHER:
+ case S_UNKNOWN:
+ break;
+ case S_STRING:
+ str = sym_get_string_value(sym);
+ str = sym_escape_string_value(str);
+ printer->print_symbol(fp, sym, str, printer_arg);
+ free((void *)str);
+ break;
+ default:
+ str = sym_get_string_value(sym);
+ printer->print_symbol(fp, sym, str, printer_arg);
+ }
+}
+
+static void
+conf_write_heading(FILE *fp, struct conf_printer *printer, void *printer_arg)
+{
+ char buf[256];
+
+ snprintf(buf, sizeof(buf),
+ "\n"
+ "Automatically generated file; DO NOT EDIT.\n"
+ "%s\n",
+ rootmenu.prompt->text);
+
+ printer->print_comment(fp, buf, printer_arg);
+}
+
+/*
+ * Write out a minimal config.
+ * All values that has default values are skipped as this is redundant.
+ */
+int conf_write_defconfig(const char *filename)
+{
+ struct symbol *sym;
+ struct menu *menu;
+ FILE *out;
+
+ out = fopen(filename, "w");
+ if (!out)
+ return 1;
+
+ sym_clear_all_valid();
+
+ /* Traverse all menus to find all relevant symbols */
+ menu = rootmenu.list;
+
+ while (menu != NULL)
+ {
+ sym = menu->sym;
+ if (sym == NULL) {
+ if (!menu_is_visible(menu))
+ goto next_menu;
+ } else if (!sym_is_choice(sym)) {
+ sym_calc_value(sym);
+ if (!(sym->flags & SYMBOL_WRITE))
+ goto next_menu;
+ sym->flags &= ~SYMBOL_WRITE;
+ /* If we cannot change the symbol - skip */
+ if (!sym_is_changable(sym))
+ goto next_menu;
+ /* If symbol equals to default value - skip */
+ if (strcmp(sym_get_string_value(sym),
sym_get_string_default(sym)) == 0)
+ goto next_menu;
+
+ /*
+ * If symbol is a choice value and equals to the
+ * default for a choice - skip.
+ * But only if value is bool and equal to "y" and
+ * choice is not "optional".
+ * (If choice is "optional" then all values can be "n")
+ */
+ if (sym_is_choice_value(sym)) {
+ struct symbol *cs;
+ struct symbol *ds;
+
+ cs = prop_get_symbol(sym_get_choice_prop(sym));
+ ds = sym_choice_default(cs);
+ if (!sym_is_optional(cs) && sym == ds) {
+ if ((sym->type == S_BOOLEAN) &&
+ sym_get_tristate_value(sym) == yes)
+ goto next_menu;
+ }
+ }
+ conf_write_symbol(out, sym, &kconfig_printer_cb, NULL);
+ }
+next_menu:
+ if (menu->list != NULL) {
+ menu = menu->list;
+ }
+ else if (menu->next != NULL) {
+ menu = menu->next;
+ } else {
+ while ((menu = menu->parent)) {
+ if (menu->next != NULL) {
+ menu = menu->next;
+ break;
+ }
+ }
+ }
+ }
+ fclose(out);
+ return 0;
+}
+
+int conf_write(const char *name)
+{
+ FILE *out;
+ struct symbol *sym;
+ struct menu *menu;
+ const char *basename;
+ const char *str;
+ char dirname[PATH_MAX+1], tmpname[PATH_MAX+1], newname[PATH_MAX+1];
+ char *env;
+
+ dirname[0] = 0;
+ if (name && name[0]) {
+ struct stat st;
+ char *slash;
+
+ if (!stat(name, &st) && S_ISDIR(st.st_mode)) {
+ strcpy(dirname, name);
+ strcat(dirname, "/");
+ basename = conf_get_configname();
+ } else if ((slash = strrchr(name, '/'))) {
+ int size = slash - name + 1;
+ memcpy(dirname, name, size);
+ dirname[size] = 0;
+ if (slash[1])
+ basename = slash + 1;
+ else
+ basename = conf_get_configname();
+ } else
+ basename = name;
+ } else
+ basename = conf_get_configname();
+
+ sprintf(newname, "%s%s", dirname, basename);
+ env = getenv("KCONFIG_OVERWRITECONFIG");
+ if (!env || !*env) {
+ sprintf(tmpname, "%s.tmpconfig.%d", dirname, (int)getpid());
+ out = fopen(tmpname, "w");
+ } else {
+ *tmpname = 0;
+ out = fopen(newname, "w");
+ }
+ if (!out)
+ return 1;
+
+ conf_write_heading(out, &kconfig_printer_cb, NULL);
+
+ if (!conf_get_changed())
+ sym_clear_all_valid();
+
+ menu = rootmenu.list;
+ while (menu) {
+ sym = menu->sym;
+ if (!sym) {
+ if (!menu_is_visible(menu))
+ goto next;
+ str = menu_get_prompt(menu);
+ fprintf(out, "\n"
+ "#\n"
+ "# %s\n"
+ "#\n", str);
+ } else if (!(sym->flags & SYMBOL_CHOICE)) {
+ sym_calc_value(sym);
+ if (!(sym->flags & SYMBOL_WRITE))
+ goto next;
+ sym->flags &= ~SYMBOL_WRITE;
+
+ conf_write_symbol(out, sym, &kconfig_printer_cb, NULL);
+ }
+
+next:
+ if (menu->list) {
+ menu = menu->list;
+ continue;
+ }
+ if (menu->next)
+ menu = menu->next;
+ else while ((menu = menu->parent)) {
+ if (menu->next) {
+ menu = menu->next;
+ break;
+ }
+ }
+ }
+ fclose(out);
+
+ if (*tmpname) {
+ strcat(dirname, basename);
+ strcat(dirname, ".old");
+ rename(newname, dirname);
+ if (rename(tmpname, newname))
+ return 1;
+ }
+
+ conf_message(_("configuration written to %s"), newname);
+
+ sym_set_change_count(0);
+
+ return 0;
+}
+
+static int conf_split_config(void)
+{
+ const char *name;
+ char path[PATH_MAX+1];
+ char *s, *d, c;
+ struct symbol *sym;
+ struct stat sb;
+ int res, i, fd;
+
+ name = conf_get_autoconfig_name();
+ conf_read_simple(name, S_DEF_AUTO);
+
+ if (chdir("include/config"))
+ return 1;
+
+ res = 0;
+ for_all_symbols(i, sym) {
+ sym_calc_value(sym);
+ if ((sym->flags & SYMBOL_AUTO) || !sym->name)
+ continue;
+ if (sym->flags & SYMBOL_WRITE) {
+ if (sym->flags & SYMBOL_DEF_AUTO) {
+ /*
+ * symbol has old and new value,
+ * so compare them...
+ */
+ switch (sym->type) {
+ case S_BOOLEAN:
+ case S_TRISTATE:
+ if (sym_get_tristate_value(sym) ==
+ sym->def[S_DEF_AUTO].tri)
+ continue;
+ break;
+ case S_STRING:
+ case S_HEX:
+ case S_INT:
+ if (!strcmp(sym_get_string_value(sym),
+ sym->def[S_DEF_AUTO].val))
+ continue;
+ break;
+ default:
+ break;
+ }
+ } else {
+ /*
+ * If there is no old value, only 'no' (unset)
+ * is allowed as new value.
+ */
+ switch (sym->type) {
+ case S_BOOLEAN:
+ case S_TRISTATE:
+ if (sym_get_tristate_value(sym) == no)
+ continue;
+ break;
+ default:
+ break;
+ }
+ }
+ } else if (!(sym->flags & SYMBOL_DEF_AUTO))
+ /* There is neither an old nor a new value. */
+ continue;
+ /* else
+ * There is an old value, but no new value ('no' (unset)
+ * isn't saved in auto.conf, so the old value is always
+ * different from 'no').
+ */
+
+ /* Replace all '_' and append ".h" */
+ s = sym->name;
+ d = path;
+ while ((c = *s++)) {
+ c = tolower(c);
+ *d++ = (c == '_') ? '/' : c;
+ }
+ strcpy(d, ".h");
+
+ /* Assume directory path already exists. */
+ fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
+ if (fd == -1) {
+ if (errno != ENOENT) {
+ res = 1;
+ break;
+ }
+ /*
+ * Create directory components,
+ * unless they exist already.
+ */
+ d = path;
+ while ((d = strchr(d, '/'))) {
+ *d = 0;
+ if (stat(path, &sb) && mkdir(path, 0755)) {
+ res = 1;
+ goto out;
+ }
+ *d++ = '/';
+ }
+ /* Try it again. */
+ fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
+ if (fd == -1) {
+ res = 1;
+ break;
+ }
+ }
+ close(fd);
+ }
+out:
+ if (chdir("../.."))
+ return 1;
+
+ return res;
+}
+
+int conf_write_autoconf(void)
+{
+ struct symbol *sym;
+ const char *name;
+ FILE *out, *tristate, *out_h;
+ int i;
+
+ sym_clear_all_valid();
+
+ file_write_dep("include/config/auto.conf.cmd");
+
+ if (conf_split_config())
+ return 1;
+
+ out = fopen(".tmpconfig", "w");
+ if (!out)
+ return 1;
+
+ tristate = fopen(".tmpconfig_tristate", "w");
+ if (!tristate) {
+ fclose(out);
+ return 1;
+ }
+
+ out_h = fopen(".tmpconfig.h", "w");
+ if (!out_h) {
+ fclose(out);
+ fclose(tristate);
+ return 1;
+ }
+
+ conf_write_heading(out, &kconfig_printer_cb, NULL);
+
+ conf_write_heading(tristate, &tristate_printer_cb, NULL);
+
+ conf_write_heading(out_h, &header_printer_cb, NULL);
+
+ for_all_symbols(i, sym) {
+ sym_calc_value(sym);
+ if (!(sym->flags & SYMBOL_WRITE) || !sym->name)
+ continue;
+
+ /* write symbol to auto.conf, tristate and header files */
+ conf_write_symbol(out, sym, &kconfig_printer_cb, (void *)1);
+
+ conf_write_symbol(tristate, sym, &tristate_printer_cb, (void
*)1);
+
+ conf_write_symbol(out_h, sym, &header_printer_cb, NULL);
+ }
+ fclose(out);
+ fclose(tristate);
+ fclose(out_h);
+
+ name = getenv("KCONFIG_AUTOHEADER");
+ if (!name)
+ name = "include/generated/autoconf.h";
+ if (rename(".tmpconfig.h", name))
+ return 1;
+ name = getenv("KCONFIG_TRISTATE");
+ if (!name)
+ name = "include/config/tristate.conf";
+ if (rename(".tmpconfig_tristate", name))
+ return 1;
+ name = conf_get_autoconfig_name();
+ /*
+ * This must be the last step, kbuild has a dependency on auto.conf
+ * and this marks the successful completion of the previous steps.
+ */
+ if (rename(".tmpconfig", name))
+ return 1;
+
+ return 0;
+}
+
+static int sym_change_count;
+static void (*conf_changed_callback)(void);
+
+void sym_set_change_count(int count)
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