Re: [kbuild-devel] Query regarding extra-y targets
Hi Sam, Thanks much for your help. I think I'll go for solution 2 - option 1. Regards, Hari On Wed, Jan 21, 2004 at 10:46:28PM +0100, Sam Ravnborg wrote: On Wed, Jan 21, 2004 at 12:13:06PM +0530, Hariprasad Nellitheertha wrote: The problem with this is that the target is not built when we build LKCD as a module, as CONFIG_CRASH_DUMP is set to m. I read the kbuild documentation and there does not seem to be anything equivalent to extra-y when it comes to modules. In order to overcome the problem, I used an ifdef-endif wrapper as below. ifdef CONFIG_CRASH_DUMP extra-y:= kerntypes.o endif Two type of solutions exits. You can always define a symbol in your Kconfig file with the bool type and use that in the Makefile. So it looks like: extra-$(CONFIG_KERN_TYPES)+= kerntypes.o Note: I prefer '+=', which allow you to just add an extra line anywhere in the file. The second type of solution is simply to replace the m with an y. Several syntaxes are supported: extra-$(patsubst,m,y,$(CONFIG_CRASH_DUMP))+= kerntypes.o extra-$(subst,m,y,$(CONFIG_CRASH_DUMP)) += kerntypes.o extra-$(CONFIG_CRASH_DUMP:m=y)+= kerntypes.o The first one is the most widely used construction. So if you go for solution 2, then use patsubst. Sam -- Hariprasad Nellitheertha Linux Technology Center India Software Labs IBM India, Bangalore --- The SF.Net email is sponsored by EclipseCon 2004 Premiere Conference on Open Tools Development and Integration See the breadth of Eclipse activity. February 3-5 in Anaheim, CA. http://www.eclipsecon.org/osdn ___ kbuild-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/kbuild-devel
Re: [kbuild-devel] Query regarding extra-y targets
On Wed, Jan 21, 2004 at 12:13:06PM +0530, Hariprasad Nellitheertha wrote: The problem with this is that the target is not built when we build LKCD as a module, as CONFIG_CRASH_DUMP is set to m. I read the kbuild documentation and there does not seem to be anything equivalent to extra-y when it comes to modules. In order to overcome the problem, I used an ifdef-endif wrapper as below. ifdef CONFIG_CRASH_DUMP extra-y := kerntypes.o endif Two type of solutions exits. You can always define a symbol in your Kconfig file with the bool type and use that in the Makefile. So it looks like: extra-$(CONFIG_KERN_TYPES) += kerntypes.o Note: I prefer '+=', which allow you to just add an extra line anywhere in the file. The second type of solution is simply to replace the m with an y. Several syntaxes are supported: extra-$(patsubst,m,y,$(CONFIG_CRASH_DUMP)) += kerntypes.o extra-$(subst,m,y,$(CONFIG_CRASH_DUMP)) += kerntypes.o extra-$(CONFIG_CRASH_DUMP:m=y) += kerntypes.o The first one is the most widely used construction. So if you go for solution 2, then use patsubst. Sam --- The SF.Net email is sponsored by EclipseCon 2004 Premiere Conference on Open Tools Development and Integration See the breadth of Eclipse activity. February 3-5 in Anaheim, CA. http://www.eclipsecon.org/osdn ___ kbuild-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/kbuild-devel
[kbuild-devel] Query regarding extra-y targets
Hello All, I work on the LKCD project and am facing a problem with extra-y. LKCD requires an additional target (kerntypes.o) built every time we build LKCD. Our patch adds this line into init/Makefile extra-$(CONFIG_CRASH_DUMP) := kerntypes.o The problem with this is that the target is not built when we build LKCD as a module, as CONFIG_CRASH_DUMP is set to m. I read the kbuild documentation and there does not seem to be anything equivalent to extra-y when it comes to modules. In order to overcome the problem, I used an ifdef-endif wrapper as below. ifdef CONFIG_CRASH_DUMP extra-y:= kerntypes.o endif This works fine but I believe the use of ifdefs in Makefiles is frowned upon. Could someone kindly let me know a better way to handle this problem. Thanks in advance! -- Regards, Hari Hariprasad Nellitheertha Linux Technology Center India Software Labs IBM India, Bangalore --- The SF.Net email is sponsored by EclipseCon 2004 Premiere Conference on Open Tools Development and Integration See the breadth of Eclipse activity. February 3-5 in Anaheim, CA. http://www.eclipsecon.org/osdn ___ kbuild-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/kbuild-devel
