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2010-02-03kconfig: Simplify LSMOD= handlingMichal Marek
Signed-off-by: Michal Marek <mmarek@suse.cz> LKML-Reference: <20100203162014.GA10956@sepie.suse.cz> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2010-02-02kconfig: Add LSMOD=file to override the lsmod for localmodconfigSteven Rostedt
Doing the following: make LSMOD=file localmodconfig Will make the streamline-config code use the given file instead of lsmod. If the file is an executable, it will execute it, otherwise it will read it as text. make LSMOD=/my/local/path/lsmod localmodconfig The above will execute the lsmod in /my/local/path instead of the lsmods that may be located elsewhere. make LSMOD=embedded_board_lsmod localmodconfig The above will read the "embedded_board_lsmod" as a text file. This is useful if you are doing a cross compile and need to run the config against modules that exist on an embedded device. Note, if the LSMOD= file does is not a path, it will add the path to the object directory. That is, the above example will look for "embedded_board_lsmod" in the directory that the binary will be built in (the O=dir directory). Signed-off-by: Steven Rostedt <rostedt@goodmis.org> On branch config/linus
2010-02-02kconfig: Look in both /bin and /sbin for lsmod in streamline_config.plSteven Rostedt
Distributions now have lsmod in /bin instead of /sbin. But to handle both cases, we look for it in /sbin /bin /usr/bin and /usr/sbin. If lsmod is not found in any of those paths, it defaults to use just lsmod and hopes that it lies in the path of the user. Tested-by: Xavier Chantry <shiningxc@gmail.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2010-01-06kconfig: Check for if conditions in Kconfig for localmodconfigSteven Rostedt
The streamline_config.pl misses the if conditions for checking dependencies. For Kconfigs with the following construct: if MEDIA_SUPPORT config VIDEO_DEV [...] If VIDEO_DEV was enabled, the script will miss the fact that MEDIA_SUPPORT is also needed. This patch changes streamline_config.pl to include if conditions into the dependencies of configs. Reported-by: Anton Blanchard <anton@sambo.org> Tested-by: Anton Blanchard <anton@sambo.org> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2010-01-06kconfig: Create include/generated for localmodconfigSteven Rostedt
If someone downloads a brand new kernel and runs localmodconfig or localyesconfig, the ending result will report: *** Error during update of the kernel configuration. This is because localmodconfig and localyesconfig must create the include/generated directory to place the autoconf.h file. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-12-12kbuild: generate modules.builtinMichal Marek
To make it easier for module-init-tools and scripts like mkinitrd to distinguish builtin and missing modules, install a modules.builtin file listing all builtin modules. This is done by generating an additional config file (tristate.conf) with tristate options set to uppercase 'Y' or 'M'. If we source that config file, the builtin modules appear in obj-Y. Signed-off-by: Michal Marek <mmarek@suse.cz>
2009-12-12kbuild: create include/generated in silentoldconfigMichal Marek
The toplevel Makefile creates the directory if it runs silentoldconfig automatically, but if run manually, it fails: $ make mrproper $ make defconfig && make silentoldconfig *** Default configuration is based on 'x86_64_defconfig' # # configuration written to .config # scripts/kconfig/conf -s arch/x86/Kconfig *** Error during update of the kernel configuration. ... Move the mkdir command to the silentoldconfig target to make it work. Signed-off-by: Michal Marek <mmarek@suse.cz>
2009-12-12kbuild: move autoconf.h to include/generatedSam Ravnborg
Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2009-12-07Merge branch 'for-next' into for-linusJiri Kosina
Conflicts: kernel/irq/chip.c
2009-12-04tree-wide: fix assorted typos all over the placeAndré Goddard Rosa
That is "success", "unknown", "through", "performance", "[re|un]mapping" , "access", "default", "reasonable", "[con]currently", "temperature" , "channel", "[un]used", "application", "example","hierarchy", "therefore" , "[over|under]flow", "contiguous", "threshold", "enough" and others. Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-11-20kconfig: Fix make O=<dir> local{mod,yes}configSteven Rostedt
When the output directory is something other than the kernel source, the streamline_config script gets confused. This patch passes in the source directory to the script so that it can find the proper files. Reported-by: Peter Zijlstra <peterz@infradead.org> Tested-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-11-15kconfig: Mark various internal functions staticJosh Triplett
kconfig's keyword hash, lexer, and parser define various functions used only locally. Declare these functions as static, and regenerate the corresponding generated files. Signed-off-by: Josh Triplett <josh@joshtriplett.org>
2009-10-15kconfig: Make zconf.y work with current bisonJosh Triplett
zconf.y includes zconf.hash.c from the initial code section. zconf.hash.c references the token constants from zconf.y. However, current bison defines the token constants after the initial code section, making zconf.hash.c fail to compile. Move the include of zconf.hash.c later in zconf.y, so bison puts it after the token constants. Signed-off-by: Josh Triplett <josh@joshtriplett.org>
2009-09-20kbuild: add static to prototypesTrevor Keith
Warnings found via gcc -Wmissing-prototypes. Signed-off-by: Trevor Keith <tsrk@tsrk.net> Acked-by: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-09-20gconfig: disable "typeahead find" search in treeviewsDiego Elio 'Flameeyes' Pettenò
When typeahead find is enabled, using 'y', 'n' and 'm' to change the status of the configuration items will also start up the search system, making you jump around the configuration. Disabling the enable_search property does not mean that search is not possible, it only disables the typeahead; to execute a search in the treeview, you can just call it up explicitly (i.e.: on most systems that will be Ctrl-f). Signed-off-by: Diego Elio 'Flameeyes' Pettenò <flameeyes@gmail.com> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-09-20kconfig: make use of menu_get_ext_help in gconfigCheng Renquan
Futhermore, gconfig interface lack the "search a symbol" function, do later. Signed-off-by: Cheng Renquan <crquan@gmail.com> Cc: Roman Zippel <zippel@linux-m68k.org> [sam: fix SEGV in gconfig] Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-09-20kconfig: make use of menu_get_ext_help in "make config"Cheng Renquan
Signed-off-by: Cheng Renquan <crquan@gmail.com> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-09-20kconfig: make use of menu_get_ext_help in qconfigCheng Renquan
Signed-off-by: Cheng Renquan <crquan@gmail.com> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-09-20kconfig: make use of menu_get_ext_help in menuconfigCheng Renquan
The removed functions are moved into menu.c for sharing with gconfig & xconfig & config. Signed-off-by: Cheng Renquan <crquan@gmail.com> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-09-20kconfig: add menu_get_ext_help function to display more informationCheng Renquan
The three functions are moved from mconf.c, then they can be shared in all menuconfig & gconfig & xconfig & config. +void menu_get_ext_help(struct menu *menu, struct gstr *help) +static void get_prompt_str(struct gstr *r, struct property *prop) +void get_symbol_str(struct gstr *r, struct symbol *sym) Signed-off-by: Cheng Renquan <crquan@gmail.com> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-09-20kconfig: add symbol value to help find the real dependCheng Renquan
Sometimes when configuring need to disable some unused item, but the item is selected by many other items, it's hard to find the real dependency which selected it, This patch add every symbol's value accompanied to make it possible to find the real dependency easily. An example is CONFIG_RFKILL, ---------------------- RF switch subsystem support ---------------------- | CONFIG_RFKILL: | | | | Say Y here if you want to have control over RF switches | | found on many WiFi and Bluetooth cards. | | | | To compile this driver as a module, choose M here: the | | module will be called rfkill. | | | | Symbol: RFKILL [=m] | | Prompt: RF switch subsystem support | | Defined at net/rfkill/Kconfig:4 | | Depends on: NET [=y] | | Location: | | -> Networking support (NET [=y]) | | Selected by: IWLCORE [=n] && NETDEVICES [=y] && !S390 [=S390] && PC | | | ----------------------------------------------------------------( 99%)--- Signed-off-by: Cheng Renquan <crquan@gmail.com> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-08-21kconfig: add missing dependency of conf to localyesconfigSteven Rostedt
There's a dependency missing. $ make localyesconfig HOSTCC scripts/basic/fixdep HOSTCC scripts/basic/docproc HOSTCC scripts/basic/hash using config: '/boot/config-2.6.27.25-78.2.56.fc9.x86_64' /bin/sh: line 8: scripts/kconfig/conf: No such file or directory make[1]: *** [localyesconfig] Error 127 make: *** [localyesconfig] Error 2 Thus the script failed to run. But the sed command that converts the '=m' to '=y' still ran. This gives us a distro config with all modules converted to built in! The missing dependency was for conf for localyesconfig. This dependency was already set for localmodconfig. Reported-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-08-18kconfig: test if a .config already existsSteven Rostedt
If one were to run localmodconfig or localyesconfig without having a .config already in the file, then the end of the process would give a warning when it tries to move the old .config to .config.old. This patch adds a test to check if .config exists and avoid the moves if it does not. [ Impact: remove warning after make localmodconfig ] Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-08-18kconfig: make local .config default for streamline_configSteven Rostedt
As Andi Kleen pointed out, most people would expect that the local .config file to be based for a streamline config. This patch changes the order of searching for a config file to consider the .config in the local directory first. Reported-by: Andi Kleen <andi@firstfloor.org> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-08-18kconfig: test for /boot/config-uname after /proc/config.gz in localconfigSteven Rostedt
Many distros put their config in /boot/config-`uname -r`, add a check for that right after /proc/config.gz Reported-by: Alan Jenkins <sourcejedi.lkml@googlemail.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-08-18kconfig: unset IKCONFIG_PROC and clean up nestingSteven Rostedt
Due to cut and paste error IKCONFIG was both set and cleared. It was suppose to be IKCONFIG_PROC to be cleared. Also cleaned up if nesting. Reported-by: Alan Jenkins <sourcejedi.lkml@googlemail.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-08-18kconfig: search for a config to base the local(mod|yes)config onSteven Rostedt
Instead of using the .config in the local directory. This patch changes streamline_config.pl to search various locations for a config. Here's the list and order of search: /proc/config.gz /boot/vmlinuz-`uname -r` vmlinux # local to the directory /lib/modules/`uname -r`/kernel/kernel/configs.ko kernel/configs.ko kernel/configs.o .config Once it finds a file that contains a config (it checks if the binary objects have configs first) it then uses it to create the .config with minimum modules needed. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-08-18kconfig: enable CONFIG_IKCONFIG from streamline_config.plSteven Rostedt
Ingo Molnar suggested that the streamline_config.pl should enable CONFIG_IKCONFIG to keep the current config in the kernel. Then we can use scripts/extract-ikconfig to find the current modules. This patch changes streamline_config.pl to check if CONFIG_IKCONFIG is not set, and if it is not, it enables it to be a module. [ Impact: make current config options easier to find ] Reported-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-08-18kconfig: do not warn about modules built inSteven Rostedt
The streamline_config.pl finds all the configs that are needed to compile the currently loaded modules. After it creates the .config file, it tests to make sure all the configs that are needed were set. It only looks at the configs that are modules, it does not look at the builtin configs. This causes unnecessary warnings about modules not being covered. Reported-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-08-18kconfig: streamline_config.pl do not stop with no dependsSteven Rostedt
If a config does not have a prompt, it must be selected. streamline_config.pl keeps track of all configs that select other configs. If a config that does not have a prompt needs to be set to enable a current module, it will include all configs that select it. Note, streamline_config.pl does not enable modules that are not already enabled. It only keeps enabled those that were enabled and might be needed to compile the current modules. The code to find the selects of a config is after the code that adds the depends. But if a config needed selects but had no dependencies, it would not be set. Because the code would stop before getting to the select. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-08-18kconfig: add make localyesconfig optionSteven Rostedt
This adds the option localyesconfig to make. This is similar to localmodconfig, but after it removes unnecessary modules it runs sed -i s/=m/=y/ on the .config file. It then runs "make silentoldconfig" to fix any wholes that were created by the conversion of modules to core. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-08-18kconfig: make localmodconfig to run streamline_config.plSteven Rostedt
Running the streamline_config.pl script manually can still be confusing for some users. This patch adds the localmodconfig option. This will automatically run streamline_config.pl on the current .config and then run "make silentoldconfig" to fix any wholes that might have been created. $ make localmodconfig This will remove any module configurations in .config that are not needed to compile the modules that are loaded. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-08-18kconfig: add streamline_config.pl to scriptsSteven Rostedt
streamline_config.pl is a very powerful tool. For those that install a kernel to a new box using the config file from the distribution know that it can take forever to compile the kernel. Making a custom config file that will still boot your box, but bring down the compile time of the kernel can be quit painful, and to ask someone that reported a bug to do this can be a large burdon since that person may not even know how to build a kernel. This script will perform "lsmod" to find all the modules loaded on the current running system. It will read all the Makefiles to map which CONFIG enables a module. It will read the Kconfig files to find the dependencies and selects that may be needed to support a CONFIG. Finally, it reads the .config file and removes any module "=m" that is not needed to enable the currently loaded modules. The output goes to standard out. Here's a way to run the script. From the Linux directory that holds a distribution .config. $ scripts/kconfig/streamline_config.pl arch/x86/Kconfig > config-sl $ mv .config config-save $ mv config-sl .config $ make oldconfig Now you have a .config that will still build all your modules, but also take much less time to build the kernel. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-07-17kconfig: initialize the screen before using curses(3) functionsArnaud Lacombe
This is needed on non ncurses based implementation to get a properly initialized `stdscr' in main(). Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-07-17kconfig: variable argument lists needs `stdarg.h'Arnaud Lacombe
Fix build on non GNU based platforms. Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-06-09kconfig: do not hardcode "include/config/auto.conf" filenameMarkus Heidelberg
Regardless of KCONFIG_AUTOCONFIG, the filename written as a Make target into "include/config/auto.conf.cmd" was always the default one. Of course this doesn't make it work for the Kernel kbuild system, since there the filename is hardcoded at several places in the Makefiles. Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-06-09kconfig: do not hardcode ".config" filenameMarkus Heidelberg
Rather than hardcoding ".config" use conf_get_configname(), which also respects the environment variable KCONFIG_CONFIG. This fixes "make silentoldconfig" when KCONFIG_CONFIG is used and also suggests the given filename for "Load" and "Save as" in qconf. Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-06-09kconfig qconf: fix the type of the desktop widgetMarkus Heidelberg
QApplication::desktop() returns a pointer to QDesktopWidget, not to QWidget. Fixes the following compiler error after a quick conversion with 'qt3to4', which occured with g++ 3.4.6 and 4.1.2, but not anymore with 4.3.2. scripts/kconfig/qconf.cc: In constructor 'ConfigMainWindow::ConfigMainWindow()': scripts/kconfig/qconf.cc:1289: error: cannot convert 'QDesktopWidget*' to 'QWidget*' in initialization Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-06-09kconfig qconf: add namespace for use of Key_ enum valuesMarkus Heidelberg
They are defined in the 'Qt' namespace. Fixes the following compiler errors after a quick conversion with 'qt3to4', which occured with g++ 3.4.6 and 4.1.2, but not anymore with 4.3.2. scripts/kconfig/qconf.cc: In member function 'virtual void ConfigLineEdit::keyPressEvent(QKeyEvent*)': scripts/kconfig/qconf.cc:311: error: 'Key_Escape' was not declared in this scope scripts/kconfig/qconf.cc:313: error: 'Key_Return' was not declared in this scope scripts/kconfig/qconf.cc:314: error: 'Key_Enter' was not declared in this scope scripts/kconfig/qconf.cc: In member function 'virtual void ConfigList::keyPressEvent(QKeyEvent*)': scripts/kconfig/qconf.cc:653: error: 'Key_Escape' was not declared in this scope scripts/kconfig/qconf.cc:666: error: 'Key_Return' was not declared in this scope scripts/kconfig/qconf.cc:667: error: 'Key_Enter' was not declared in this scope scripts/kconfig/qconf.cc:681: error: 'Key_Space' was not declared in this scope scripts/kconfig/qconf.cc:684: error: 'Key_N' was not declared in this scope scripts/kconfig/qconf.cc:687: error: 'Key_M' was not declared in this scope scripts/kconfig/qconf.cc:690: error: 'Key_Y' was not declared in this scope scripts/kconfig/qconf.cc: In constructor 'ConfigMainWindow::ConfigMainWindow()': scripts/kconfig/qconf.cc:1329: error: 'CTRL' was not declared in this scope scripts/kconfig/qconf.cc:1329: error: 'Key_Q' was not declared in this scope scripts/kconfig/qconf.cc:1331: error: 'Key_L' was not declared in this scope scripts/kconfig/qconf.cc:1333: error: 'Key_S' was not declared in this scope scripts/kconfig/qconf.cc:1340: error: 'Key_F' was not declared in this scope Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-06-09kconfig qconf: fix namespace for Horizontal and Vertical enum valuesMarkus Heidelberg
They were used as QSplitter::Horizontal resp. QSplitter::Vertical, but are defined in the 'Qt' namespace. Fixes the following compiler errors after a quick conversion with 'qt3to4', which occured with g++ 3.4.6 and 4.1.2, but not anymore with 4.3.2. scripts/kconfig/qconf.cc: In constructor 'ConfigSearchWindow::ConfigSearchWindow(ConfigMainWindow*, const char*)': scripts/kconfig/qconf.cc:1213: error: 'Vertical' is not a member of 'QSplitter' scripts/kconfig/qconf.cc: In constructor 'ConfigMainWindow::ConfigMainWindow()': scripts/kconfig/qconf.cc:1304: error: 'Horizontal' is not a member of 'QSplitter' scripts/kconfig/qconf.cc:1311: error: 'Vertical' is not a member of 'QSplitter' Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-06-09kconfig qconf: fix -Wall compiler warningsMarkus Heidelberg
These compiler warnings occure when adding -Wall to HOSTCXXFLAGS in /Makefile scripts/kconfig/qconf.h: In constructor ‘ConfigInfoView::ConfigInfoView(QWidget*, const char*)’: scripts/kconfig/qconf.h:274: warning: ‘ConfigInfoView::menu’ will be initialized after scripts/kconfig/qconf.h:273: warning: ‘symbol* ConfigInfoView::sym’ scripts/kconfig/qconf.cc:922: warning: when initialized here scripts/kconfig/qconf.cc: In member function ‘void ConfigMainWindow::setMenuLink(menu*)’: scripts/kconfig/qconf.cc:1498: warning: enumeration value ‘menuMode’ not handled in switch scripts/kconfig/qconf.cc:1498: warning: enumeration value ‘listMode’ not handled in switch scripts/kconfig/qconf.cc: In member function ‘void ConfigMainWindow::saveSettings()’: scripts/kconfig/qconf.cc:1664: warning: enumeration value ‘menuMode’ not handled in switch scripts/kconfig/qconf.cc:1664: warning: enumeration value ‘listMode’ not handled in switch Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-06-09gitignore: ignore Kconfig i18n filesMarkus Heidelberg
Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-06-09kconfig: add a note about the deps to the 'silentoldconfig' helpMarkus Heidelberg
Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-06-09kconfig: fix typo "mconfig" to "menuconfig" in a commentMarkus Heidelberg
Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-06-09kconfig: handle comment entries within choice/endchoicePeter Korsgaard
Implement support for comment entries within choice groups. Comment entries are displayed visually distinct from normal configs, and selecting them is a no-op. Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-04-11kconfig: fix update-po-config to accect backslash in inputSam Ravnborg
Massimo Maiurana reported (slightly edited): ===== In latest 2.6.29 "make update-po-config" fails at msguniq invocation with an "invalid control sequence" error. The offending string is the following, and it's located in drivers/staging/panel/Kconfig:72: "'\e[L' which are specific to the LCD, and a few ANSI codes. The" looks to me like gettext expects strings in printf format, so in this case it thinks "\e" is a control sequence but doesn't recognise it as a valid one. A valid solution would be to tell kxgettext to automatically escape this kind of strings in the */config.pot he produces, so that msguniq would not complain. ===== This patch implements the suggested escaping. Reported-by: Massimo Maiurana <maiurana@gmail.com> Tested-by: Massimo Maiurana <maiurana@gmail.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-03-15kconfig: improve seed in randconfigIngo Molnar
'make randconfig' uses glibc's rand function, and the seed of that PRNG is set via: srand(time(NULL)); But 'time()' only increases once every second - freezing the randconfig result within a single second. My Nehalem testbox does randconfig much faster than 1 second and i have a few scripts that do 'randconfig until condition X' loops. Those scripts currently waste a lot of CPU time due to randconfig changing its seed only once per second currently. Change the seed to be micrseconds based. (I checked the statistical spread of the seed - the now.tv_sec*now.tv_usec multiplication there further improves it.) Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Roman Zippel <zippel@linux-m68k.org> [sam: fix for systems where usec is zero - noticed by Geert Uytterhoeven] Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-03-15kconfig: fix randconfig for choice blocksSam Ravnborg
Ingo Molnar reported that 'make randconfig' was not covering choice blocks properly, resulting in certain config options being left out of randconfig testing altogether. With the following patch we: - properly randomize choice value for normal choice blocks - properly randomize for multi choice blocks - added several comments to explain what is going on The root cause of the bug was that SYMBOL_VALID was set on the symbol representing the choice block so clearing this did the trick initially. But testign revealed a few more issues that is now fixed. Reported-by: Ingo Molnar <mingo@elte.hu> Cc: Ingo Molnar <mingo@elte.hu> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-01-02kconfig: improve error messages for bad source statementsSam Ravnborg
We now say where we detect the second source of a file, and where we detect a recursively source of the same file. This makes it easier to fix such errors. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Roman Zippel <zippel@linux-m68k.org>
2009-01-02kconfig: struct property commentedSam Ravnborg
No functional changes Signed-off-by: Sam Ravnborg <sam@ravnborg.org>