linux-kernel - Re: [PATCH] kbuild: let object files depend on recordmcount instead of its sources

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Date:	Fri, 07 Oct 2011 14:52:44 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
Cc:	Michal Marek <mmarek@...e.cz>, linux-kernel@...r.kernel.org,
	linux-kbuild@...r.kernel.org
Subject: Re: [PATCH] kbuild: let object files depend on recordmcount instead
 of its sources

On Fri, 2011-10-07 at 20:04 +0200, Uwe Kleine-König wrote:

> Works for me with 3ee72ca + my patch doing:
> 
> 	make -C /path/to/my/linux/src/dir defconfig O=$(pwd)
> 	make -j 6
> 
> If you tell me your exact setup I'll try to reproduce and fix.

I just tried again with the same results. Here:

$ cd git
$ git clone nobackup/linus.git -s -l tmp.git
Cloning into tmp.git...
done.
$ cd tmp.git/
$ mkdir /tmp/build
$ patch -p1 < /tmp/rm.patch
patching file scripts/Makefile.build
$ make O=/tmp/build allyesconfig
  HOSTCC  scripts/basic/fixdep
  GEN     /tmp/build/Makefile
  HOSTCC  scripts/kconfig/conf.o
  SHIPPED scripts/kconfig/zconf.tab.c
  SHIPPED scripts/kconfig/zconf.lex.c
  SHIPPED scripts/kconfig/zconf.hash.c
  HOSTCC  scripts/kconfig/zconf.tab.o
  HOSTLD  scripts/kconfig/conf
scripts/kconfig/conf --allyesconfig Kconfig
#
# configuration written to .config
#
$ make O=/tmp/build
  GEN     /tmp/build/Makefile
scripts/kconfig/conf --silentoldconfig Kconfig
/home/pub/git/tmp.git/arch/x86/Makefile:81: stack protector enabled but
no compiler support
  Using /home/pub/git/tmp.git as source for kernel
  GEN     /tmp/build/Makefile
  CHK     include/linux/version.h
  UPD     include/linux/version.h
  CHK     include/generated/utsrelease.h
  UPD     include/generated/utsrelease.h
  CC      kernel/bounds.s
  GEN     include/generated/bounds.h
  CC      arch/x86/kernel/asm-offsets.s
  GEN     include/generated/asm-offsets.h
  CALL    /home/pub/git/tmp.git/scripts/checksyscalls.sh
  HOSTCC  scripts/genksyms/genksyms.o
  SHIPPED scripts/genksyms/lex.lex.c
  SHIPPED scripts/genksyms/keywords.hash.c
  SHIPPED scripts/genksyms/parse.tab.h
  HOSTCC  scripts/genksyms/lex.lex.o
  SHIPPED scripts/genksyms/parse.tab.c
  HOSTCC  scripts/genksyms/parse.tab.o
  HOSTLD  scripts/genksyms/genksyms
make[3]: *** No rule to make target `scripts/mod/empty.o', needed by
`scripts/mod/elfconfig.h'.  Stop.
make[2]: *** [scripts/mod] Error 2
make[1]: *** [scripts] Error 2
make: *** [sub-make] Error 2

It needs to be a real clean repo, not a make clean.

-- Steve

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