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Commit cdfc4795 authored by Steven Rostedt's avatar Steven Rostedt Committed by Steven Rostedt
Browse files

kconfig: search for a config to base the local(mod|yes)config on 



Instead of using the .config in the local directory. This patch
changes streamline_config.pl to search various locations for a config.

Here's the list and order of search:

  /proc/config.gz
  /boot/vmlinuz-`uname -r`
  vmlinux  # local to the directory
  /lib/modules/`uname -r`/kernel/kernel/configs.ko
  kernel/configs.ko
  kernel/configs.o
  .config

Once it finds a file that contains a config (it checks if the binary
objects have configs first) it then uses it to create the .config
with minimum modules needed.

Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
parent de481560

scripts/kconfig/streamline_config.pl

+62 −1
Original line number Diff line number Diff line
@@ -45,7 +45,68 @@ 
my $config = ".config";

my $linuxpath = ".";



open(CIN,$config) || die "Can't open current config file: $config";

my $uname = `uname -r`;

chomp $uname;



my @searchconfigs = (

	{

	    "file" => "/proc/config.gz",

	    "exec" => "zcat",

	},

	{

	    "file" => "/boot/vmlinuz-$uname",

	    "exec" => "scripts/extract-ikconfig",

	    "test" => "scripts/extract-ikconfig",

	},

	{

	    "file" => "vmlinux",

	    "exec" => "scripts/extract-ikconfig",

	    "test" => "scripts/extract-ikconfig",

	},

	{

	    "file" => "/lib/modules/$uname/kernel/kernel/configs.ko",

	    "exec" => "scripts/extract-ikconfig",

	    "test" => "scripts/extract-ikconfig",

	},

	{

	    "file" => "kernel/configs.ko",

	    "exec" => "scripts/extract-ikconfig",

	    "test" => "scripts/extract-ikconfig",

	},

	{

	    "file" => "kernel/configs.o",

	    "exec" => "scripts/extract-ikconfig",

	    "test" => "scripts/extract-ikconfig",

	},

	{

	    "file" => ".config",

	    "exec" => "cat",

	},

);



sub find_config {

    foreach my $conf (@searchconfigs) {

	my $file = $conf->{"file"};



	next if ( ! -f "$file");



	if (defined($conf->{"test"})) {

	    `$conf->{"test"} $conf->{"file"} 2>/dev/null`;

	    next if ($?);

	}



	my $exec = $conf->{"exec"};



	print STDERR "using config: '$file'\n";



	open(CIN, "$exec $file |") || die "Failed to run $exec $file";

	return;

    }

    die "No config file found";

}



find_config;



my @makefiles = `find $linuxpath -name Makefile`;

my %depends;

my %selects;