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authorSteven Rostedt <srostedt@redhat.com>2009-04-30 14:39:48 -0400
committerSteven Rostedt <rostedt@goodmis.org>2009-08-18 22:02:00 -0400
commitcdfc47950a531199a553cebab0ac481aa7062948 (patch)
tree23a1dfc287c61144ef3a7fcf83980a8fa50831f6 /scripts
parentde481560eb0bd9d940b90311eba85711e4b1150b (diff)
downloadlinux-linaro-stable-cdfc47950a531199a553cebab0ac481aa7062948.tar.gz
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: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'scripts')
-rw-r--r--scripts/kconfig/streamline_config.pl63
1 files changed, 62 insertions, 1 deletions
diff --git a/scripts/kconfig/streamline_config.pl b/scripts/kconfig/streamline_config.pl
index 233464185a92..9fa3f81b1ed9 100644
--- a/scripts/kconfig/streamline_config.pl
+++ b/scripts/kconfig/streamline_config.pl
@@ -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;