[kbuild-devel] some problems with if-statements in kconfig

[Sebastian Henschel]

hello list...

when trying to merge some kconfig stuff in respect of CONFIG_PM, i
stumbled upon i problem, i could not resolve yet. this is the context:
there are some (arch-specific) places where CONFIG_PM is defined. when
supplying patches to modify the URL of linux-on-laptops and add the URL
of tuxmobil.org some guy came up with the wish to concentrate PM-stuff
into kernel/power/.
i took a stab at merging the Kconfig stuff, but hit several problems
when trying to eliminate all definitions of "config PM" outside of
kernel/power/Kconfig:

arch/ppp/platforms/4xx/Kconfig
arch/mips/Kconfig
  PM is experimental which is no problem for the dependency, but for the
  prompt "(EXPERIMENTAL)" which does not fit for other archs like x86.

drivers/macintosh/Kconfig
  PM is defined implicitely, there is no prompt to ask the user.

kernel/power/Kconfig
  the help attribute is unaware of architectures, so i changed PM's text
  a little bit. now users of all archs would have to read the full
  text, often not relevant for their specific arch.


attached are three attempts which all fail in their current versions.

Kconfig.if: i prefer this version the most, though it simply does not
work, i do not understand why and perhaps this is due to a bug in
kconfig or badly explained in Documentation/kbuild/kconfig-language.txt
or just my stupidness. my arch is PPC_PMAC. when using
menuconfig/gconfig, i get the correct prompt, but the help text is from
the last config PM defined in this file. so in this case, it is from X86.

Kconfig.menu: this is basically the same as Kconfig.if, but the docs
say that "The dependency expression <expr> is appended
to all enclosed menu entries". that made me suspicious and thus, the
"if" clauses include menus here.

Kconfig.prompt: the section in the docs about the prompt left me with
the impression that it is possible to define several prompts for the
same "config" entry if there is an "if" clause appended to each prompt.
kconfig warns about prompt redefinitions and only considers the last
defined prompt.


hopefully i could make myself clear and someone has an idea what the
problem is.

thanks,
 sebastian
-- 
::: .O.
::: ..O
::: OOO
::: lynx -source http://www.kodeaffe.de/shensche.pub | gpg --import

BZh91AY&SYÂÃ*       [EMAIL PROTECTED](}ÅâÂP)AIÂH
9ÂÃFÂ#AÂÃ&&ÂÃ2
ÂÂM
Â4hÃ4Â12bh0Â 09ÂÃFÂ#AÂÃ&&[EMAIL 
PROTECTED]&ÂÃÂQÂ?J{IÅ{J{BGÅÃjzÅÃÃSÃ
TD      ÅÅÂ)[EMAIL PROTECTED] 
ÃÃÂÂÃÃÃÃÃÃÂÃÃÂÃGÂoÂÃ4iÂÂÂcÃÂYp)WiÂÃÂÂÃWÃVÂÂÃÂÂÃi0ÂÃÂÂÃ}jÃSÃ+ÂÃ/GGÃÃjÂÃ2Ã\_ÃÃÃÂÃÂÃÃÃÂf[Ãlc}Ã%~ÂÃÂNÂÃÃÅÃÃwÃtÃÃÃÅÃ>ÃÅÂO.Â[ÂÂKF1JÃ9=Ã]ÃÂÃÃ;6ÂÃÂÂz)z/ÂÃgg(Ãk[ÃÃÂÂÃ=Ã|^NÃÃÃ_ÂÃÃ1ÃÃÃÃÂÂo5hÃ88Âea_{Ãtm{Âi9ÂLÂÂ..
ÂÂfÃÅfÃÂlXLXÂÃmÂÃ
Ã
ÃÅÃX/rÂÂÂeÂÃÃ[+ÃÂnÃÃÃgVÃÃÂLÂ.Ã=1ÃJÃÃÃÃÂ*p~VÂÅÃÂÅÂy9;ÂSGÃÃÂÂÂÅÂÂÃ]UÂÃÂÃWrÂ<ÃÃÃÃÃÃ^ÂÃÃÂ,O6ÃÃÃÃeÂ9ÅÃÃÂUÃÃÃW5nÃXÂÂÂÃF[0ÃÃ-Ã=NÂÂ99MÃ\0ÃÂVÂÃmÂ
ÂÃÃÂÃmO&ÃUÃÂÂÃÃÃÂÃÅ+ÃÂ-ÃwÂÅYvaÃÃÃ,ÂQÂÃÂWÃÂÂxÅM^ÃÂSÂWÂ
iÃÂÂ'ÂÂÂÃ69=SÃ\ÂÂÂÂÂWEplÃ1OcÂfÃMÃwÂtnÂÂÂ5tVÃÂ0ÃÂ_]yÂÂvw?2ÂÅÃÃÂÂÂÃÂ+Â3ÂÅOcwÂÃÅÃJx5VÂg5rx5sjÃÂ'ÂÂMÂÃÂÂÂÂÂÂÅÅryMYw;ÃÃ.3ÂÂÃFX0ÃÃÃÃÃÂÃÂÃÃÃÂÂ4ÃW'ÃÃÃÂjnÂÂÃÂ[;Ã8Å=Â;ÃÂ4aÃÃÂÃÃÃunÃÂÅÃ6VÃ[5so\Ã;9ÅhÃÃÃÂv+vYsueÂÂÅÅÅÂ<ÂÅÂÂÂ<ÂÅhÃÃÃÂÂ,0ÃÂÃÃÃÂ82ÂÃUÃ|wÃÂÃleÂ}Â63ÂÃJycÃS*w=Ã-Ã
Â&ÂÃÂUÃ0ÂÃuyÅ,ÃgÃz?CÃÃ?ÂÅUÃÃÂÃÃÃÃÃ%ty
ÂÂ=HÃ=ÃÃÂFQÃ.ÃÃÂÂÃÂÃ/ÂÃÅ
ÃÂÃÃÂÃÃ_]ÃÃÃÂÃÃÃYs~GÂ6ÂÃÃFÃÃÃÃÂÂa\;ÃÂzÅÂÃÂÂÃÃ$ÃÃ+Ã_Ã2ÂNÃgÅÂÂÃÃ~ÃÃÃÃÃaÃ}lÃ>[EMAIL
 PROTECTED]/ÃuGuÃwÃa^Ã0ÃÂÃÃEeÂaÂÂ$ÂÃÃbÃÃDebÃÃÃkUÂÃdÂvÂÅÂÅ[
[EMAIL 
PROTECTED]>lÃx:ÂV[ÃÃÃÂÂÃÃÅÂÃQÃ/(y,ÃBÂ,/bÃÂÃÃVÂÃÃ{dn8Ã\Ã8^
ÅÃÂÂ7ÂbÃÂÂÂÂ2ÂhÂÂÃÃÃÂ4uaÃXÂlÃ0ÃÃÃ>ÃÂÃÂÅyÃÂ<Ã{UÂÂÂÃÂcHÃ_ÃÃÂÂÃÃÃÃÃ_ÂÃFÃÅ=ÃÃÅÃUÃ)Ã/ÂÃgÃÃÃÃ?*ÂMÂÅÃÂÃÃÃ%nÃLâÃk|QÃZGÃZX(ÃQÂjÃÃ6ÃÃÃÂÃ,ÂÅ&ÂnÂÂÃÂÃÂÂÂÃÂVÃÂÂ,GÂ9ÂÃ.bÃÂÃÃ8ÂÂd=
 
ÃGÃÂÃÂZvbVÅÃf]ÃSÃsÂÂÂÃqa\6|ÃÂÂÃÃÂeÃÂÂÂÅÂ9ÂÃIÂE}*Ã?Â,ÅÂLÂ0ÃÃÂÂÃÃaÂ)ÂÂ[Ã.,5aÃÃÃÃÃpÂÂbÂ,00ÂÃÂFXÂVZÂÃÃÂÂÃ1OdÃÂÂÃ
ÃVÃÃ+*ÃÂ|ÂÃ5k;Ã\ÂÃÃÃÃÂÂÃusqÅÂÂ,2Ã
Ã[Â5V&Ã_&YpeÃâÃÃÃÂVÃFÂ[VÃ0ÃÂÂÂÃÃÂ.MYaÂÂÂÂFÃZÅN
ÂÃ&ÃÂÃÂÂÃ5x=n
ÃÃÃÂhÃÃYWfbÅÂ5bnÃuÅÃÃ0ÃVÂ+ÃÃ\Â;ÃwÅÃÅOÂÂÅÂsxÃÃÂÃÃÂXMgWMÃÂ+Â9ÅÂÂUÂÂÂ
ÂÃÃÂIÃÂiÅÃÃ1ÃÃ-ÃÃÅ2ÂÃÅÃÃcÃÃaÃaÂÃ<\ÃÃÃ'ÂÃÂiÂ3ÂÃ]^
KÂÂÂÃÂÃLSÂÃÂÃÂ]ÂW
ÂÃ(pVÃÂÃÂÃa-\\&ÅÃÂLLCÃÂÃÂÂÂ
<ÂÃbÂÂee'ÃbL,Tf=Ãe_ÂÃ37odÃ4ÂÅG
       
ÂÂÃZeÂÅ_zÂÂ6ÃÃÃO`ÃÃÂjÃÂ.ÃÃz1Â2-.ÂÂ#6ÃÅÃÂ%âÃÂÃÂÂ&Â#IÃÃÃ`ÂÃÃÂÂV[ÂÂÃÅ
Ã_ÃÃ[ÂÃÂÂÅhÂV*Â0ÃÃÂf
ÃbaÂaÃ}NÂva[SÃaÃÃÃ<tÂÂÃ0ÂÂzSlÂÃÃ4rWÂ#ÃÂÂÂÂÂÃMÅÃÂ]ÃUÃ6GÂÂÂ"ÃyÂYÃÃÃVÂÃÅ5K3ÃÂÅÂVÃÃÂÂ3OÂÂbÂÂsqÂâÃÂVÂÂ,,ZÂm
ÃZ.=ÂuÃÂÃ7<xÂBÃÂ,Ã=ÃÂAÂÃXÅÂWÃÃw7ÂÃÂÂ36eÂ,
eÂ0ÃÅÂÃjÃ+0ÃÂ
ÂÂ1wÃ.O9ÂÂhÃ4ÂnÃÂsElÂ3   
ÂÂÂVÂÃXÂÂ[6cRÃ`.7BÂÂYXIÃb:/mÂÃÂGzÃÂFÂÂÃÃzm.Â<.ÃÂÃÂÃF#ÅÃÂÂabÂUbÂ.MÃj2ÃÂÃ4V"ÃÂ$ÅÂ[%Ãe~ÃVÂGÂÃÂÃÃÃ|ÂvkÃSÂÃeÂo+ÃÂÃOÃÃGÃ+ÃÂ[ÃdÃÅÂKrÃ_ÂÂÂÃ~ÃÃÂG<x/ÃiÂÂâpFÃÃÃÂÃÃKÃÂQÃ4Â[ÃÂ
ÃÃÂ
Â#JÅ/RÃy/ÃÃÃÃÃÃÃ$l-qÂ-lY-Ã,Ã#1ÂÃÂ,2Ã
2ÃÂ2ÃÃ;ÃÂÅÃÂ,ÃÂÂhÃ-'ÂÂZÂÃWÃÂ5aXbÅaÃfjhÃÃÂ
ÅÂÂeÃÂU8ÃUÂâÂ4ÂÂe:IqÂ[JÃaZÂÃÃÂÃÃÃÃÂÂÃÂÃÂ4ÃuiÂIru~fÂrÂfaÂbw2ÃÂ+-]ÃÃÂÂÂÂÂÃ10ÂÂlÂÅÃÃdvrmZ9Â4ÂÂhÃ5v{ÂÃÃ[

IulÃaÃÃÂVÂvWÃbpbzÃ\9ÂÂSWÃVU\kÃÃÃeÂÃÃÂÂÅÂ-odÂxÅÂhÃUÃÂÃÂÂ&ÂÃÂVÃwtÃÃÃ5W')ÃÃÃ2ÂÂyÅÂÃÂ:Å38Å;ÅÃ1Â+ÂÂÂÃÂÂÂÂLÃiÃÃÃÃÂÂÂ7nÃÂ1+Ã+&ÃÂÂÃÃ%eÂÂÅNÂÃÂIÃÂÂÃÃÃEaÂÂÂÂÂÃsÃÂÃcEÃÂÂ$|faÃW:WexYÂnÃÂÂÂâÃtWÂ,ÅÃUÃÂÃÃ0Ã~GÃlÃMÂtÂÂÂÅÂÃcDÂÃXÂÅÃÂÃÃ[ÂÂ0Ã
      
}OÃÃÃÂÂ8Ã,ÃÂÂÂÃÂÃ{gÂ;ÃWÃÃfzÂÂNÂÃjÃÃÃÃÅ=ÂÃ6ÂÃÂÂa,U12ÃÃZ+R}$ÃCÃÃÂrfV'ÃzÂ0Ã;ÂÂÂÂÃÃVÃ_ÅÂ,>
Âq)Ã}/ÃGÃÂÃÃÃHÂ
t}Â@

signature.asc
Description: Digital signature