lwn.git/scripts/kconfig/zconf.tab.c_shipped, branch v3.2.23

Merge branch 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6

2011-07-30T07:17:06+00:00

* 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6: (25 commits) kconfig: Introduce IS_ENABLED(), IS_BUILTIN() and IS_MODULE() xconfig: Abort close if configuration cannot be saved kconfig: fix missing "0x" prefix from S_HEX symbol in autoconf.h kconfig/nconf: remove useless conditionnal kconfig/nconf: prevent segfault on empty menu kconfig/nconf: use the generic menu_get_ext_help() nconfig: Avoid Wunused-but-set warning kconfig/conf: mark xfgets() private kconfig: remove pending prototypes for kconfig_load() kconfig/conf: add command line options' description kconfig/conf: reduce the scope of `defconfig_file' kconfig: use calloc() for expr allocation kconfig: introduce specialized printer kconfig: do not overwrite symbol direct dependency in assignment kconfig/gconf: silent missing prototype warnings kconfig/gconf: kill deadcode kconfig: nuke LKC_DIRECT_LINK cruft kconfig: nuke reference to SWIG kconfig: add missing inclusion kconfig: add missing inclusion ... Fix up conflicts in scripts/kconfig/Makefile

kconfig: regen parser

2011-06-09T18:04:45+00:00

Signed-off-by: Arnaud Lacombe

kconfig: nuke LKC_DIRECT_LINK cruft

2011-06-06T19:32:20+00:00

This interface is not (and has never been ?) used by any frontend, just get rid of it. Signed-off-by: Arnaud Lacombe

kconfig: regen parser

2010-11-22T13:27:32+00:00

Signed-off-by: Arnaud Lacombe Signed-off-by: Mauro Carvalho Chehab

kconfig: regen parser

2010-09-19T22:19:44+00:00

Signed-off-by: Arnaud Lacombe Reviewed-by: Sam Ravnborg Reviewed-by: Michal Marek

kconfig: fix zconfdump()

2010-04-14T13:34:18+00:00

zconfdump(), which is used for debugging, can't recognize P_SELECT, P_RANGE and P_MENU (if associated with a symbol, aka "menuconfig"), and output something like this: config X86 boolean default y unknown prop 6! unknown prop 6! unknown prop 6! ... Signed-off-by: Li Zefan Signed-off-by: Michal Marek

Improve kconfig symbol hashing

2010-02-02T13:33:55+00:00

While looking for something else I noticed that the symbol hash function used by kconfig is quite poor. It doesn't use any of the standard hash techniques but simply adds up the string and then uses power of two masking, which is both known to perform poorly. The current x86 kconfig has over 7000 symbols. When I instrumented it showed that the minimum hash chain length was 16 and a significant number of them was over 30. It didn't help that the hash table size was only 256 buckets. This patch increases the hash table size to a larger prime and switches to a FNV32 hash. I played around with a couple of hash functions, but that one seemed to perform best with reasonable hash table sizes. Increasing the hash table size even further didn't seem like a good idea, because there are a couple of global walks which walk the complete hash table. I also moved the unnamed bucket to 0. It's still the longest of all the buckets (44 entries), but hopefully it's not often hit except for the global walk which doesn't care. The result is a much nicer distribution: (first column bucket length, second number of buckets with that length) 1: 3505 2: 1236 3: 294 4: 52 5: 3 47: 1 <--- this is the unnamed symbols bucket There are still some 5+ buckets, but increasing the hash table even more would be likely not worth it. This also cleans up the code slightly by removing hard coded magic numbers. I didn't notice a big performance difference either way on my Nehalem system, but I presume it'll help somewhat on slower systems. Signed-off-by: Andi Kleen Signed-off-by: Michal Marek

kconfig: new configuration interface (nconfig)

2010-02-02T13:33:55+00:00

This patch was inspired by the kernel projects page, where an ncurses replacement for menuconfig was mentioned (by Sam Ravnborg). Building on menuconfig, this patch implements a more modern look interface using ncurses and ncurses' satellite libraries (menu, panel, form). The implementation does not depend on lxdialog, which is currently distributed with the kernel. Signed-off-by: Nir Tzachar Signed-off-by: Michal Marek

kconfig: Mark various internal functions static

2009-11-15T23:00:16+00:00

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

kconfig: Make zconf.y work with current bison

2009-10-15T18:10:12+00:00

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