linux-kernel - Re: [PATCH 2/2] ktest: run make mrproper not only for OUTPUT_DIR but also for BUILD

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Date:	Sun, 2 Mar 2014 08:29:16 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Satoru Takeuchi <satoru.takeuchi@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2] ktest: run make mrproper not only for OUTPUT_DIR
 but also for BUILD_DIR to avoid build failure

On Sun, 02 Mar 2014 21:23:36 +0900
Satoru Takeuchi <satoru.takeuchi@...il.com> wrote:

> From: Satoru Takeuchi <satoru.takeuchi@...il.com>
> 
> Build failure hapens with the following log if BUILD_DIR is dirty.

If you want to do make mrproper in the BUILD_DIR, add the command to
PRE_BUILD or something. I have TAGS in my BUILD_DIRs and this will
remove them for me. I can't accept this change.

I've noticed that there's a bug in the Linux make system that causes
the O=.. builds to fail because somehow the source directory got dirty.
We need to figure out what that bug is.

Thanks,

-- Steve


> 
> ===============================================================================
> ...
> RUNNING TEST 1 of 1 with option build olddefconfig
> 
> make O=/home/sat/ktest/output mrproper ...   CLEAN   arch/x86/tools
>   CLEAN   scripts/basic
>   CLEAN   scripts/kconfig
>   CLEAN   include/config include/generated arch/x86/include/generated
>   CLEAN   .config.old include/generated/uapi/linux/version.h
> SUCCESS
> ...
> make O=/home/sat/ktest/output -j8 ...   GEN     /home/sat/ktest/output/Makefile
> ...
>   Using /home/sat/src/test-linux-stable/linux-stable as source for kernel
>   /home/sat/src/test-linux-stable/linux-stable is not clean, please run 'make mrproper'
>   in the '/home/sat/src/test-linux-stable/linux-stable' directory.
> make[1]: *** [prepare3] Error 1
> make[1]: *** Waiting for unfinished jobs....
>   HOSTLD  arch/x86/tools/relocs
> make[1]: *** wait: No child processes.  Stop.
> make: *** [sub-make] Error 2
> FAILED!
> CRITICAL FAILURE... failed build
> ===============================================================================
> 
> To avoid this problem, it's necessary to run make mrproper not only
> for OUTPUT_DIR, but also for BUILD_DIR.
> 
> Signed-off-by: Satoru Takeuchi <satoru.takeuchi@...il.com>
> Cc: Steven Rostedt <rostedt@...dmis.org>
> 
> ---
>  tools/testing/ktest/ktest.pl | 16 +++++++++-------
>  1 file changed, 9 insertions(+), 7 deletions(-)
> 
> diff --git a/tools/testing/ktest/ktest.pl b/tools/testing/ktest/ktest.pl
> index f731ef6..1169b2a 100755
> --- a/tools/testing/ktest/ktest.pl
> +++ b/tools/testing/ktest/ktest.pl
> @@ -120,6 +120,7 @@ my $syslinux;
>  my $syslinux_path;
>  my $syslinux_label;
>  my $target;
> +my $makecmd;
>  my $make;
>  my $pre_install;
>  my $post_install;
> @@ -2198,6 +2199,11 @@ sub load_force_config {
>      close IN;
>  }
>  
> +sub mrproper {
> +    run_command "$makecmd mrproper" or dodie "make mrproper for $builddir";
> +    run_command "$make mrproper" or dodie "make mrproper for $outputdir";
> +}
> +
>  sub build {
>      my ($type) = @_;
>  
> @@ -2235,17 +2241,13 @@ sub build {
>  	if (!$noclean) {
>  	    run_command "mv $output_config $outputdir/config_temp" or
>  		dodie "moving .config";
> -
> -	    run_command "$make mrproper" or dodie "make mrproper";
> -
> +	    mrproper;
>  	    run_command "mv $outputdir/config_temp $output_config" or
>  		dodie "moving config_temp";
>  	}
> -
>      } elsif (!$noclean) {
>  	unlink "$output_config";
> -	run_command "$make mrproper" or
> -	    dodie "make mrproper";
> +	mrproper;
>      }
>  
>      # add something to distinguish this build
> @@ -3996,7 +3998,7 @@ for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) {
>  
>      undef %force_config;
>  
> -    my $makecmd = set_test_option("MAKE_CMD", $i);
> +    $makecmd = set_test_option("MAKE_CMD", $i);
>  
>      $outputdir = set_test_option("OUTPUT_DIR", $i);
>      $builddir = set_test_option("BUILD_DIR", $i);

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