diff options
Diffstat (limited to 'scripts/kconfig/streamline_config.pl')
-rwxr-xr-x | scripts/kconfig/streamline_config.pl | 32 |
1 files changed, 27 insertions, 5 deletions
diff --git a/scripts/kconfig/streamline_config.pl b/scripts/kconfig/streamline_config.pl index 08d76d7b3b..911c72a2db 100755 --- a/scripts/kconfig/streamline_config.pl +++ b/scripts/kconfig/streamline_config.pl @@ -21,7 +21,7 @@ # 1. Boot up the kernel that you want to stream line the config on. # 2. Change directory to the directory holding the source of the # kernel that you just booted. -# 3. Copy the configuraton file to this directory as .config +# 3. Copy the configuration file to this directory as .config # 4. Have all your devices that you need modules for connected and # operational (make sure that their corresponding modules are loaded) # 5. Run this script redirecting the output to some other file @@ -56,8 +56,6 @@ sub dprint { print STDERR @_; } -my $config = ".config"; - my $uname = `uname -r`; chomp $uname; @@ -145,6 +143,7 @@ my %depends; my %selects; my %prompts; my %objects; +my %config2kfile; my $var; my $iflevel = 0; my @ifdeps; @@ -203,6 +202,7 @@ sub read_kconfig { if (/^\s*(menu)?config\s+(\S+)\s*$/) { $state = "NEW"; $config = $2; + $config2kfile{"CONFIG_$config"} = $kconfig; # Add depends for 'if' nesting for (my $i = 0; $i < $iflevel; $i++) { @@ -374,7 +374,7 @@ if (defined($lsmod_file)) { $lsmod = "$dir/lsmod"; last; } -} + } if (!defined($lsmod)) { # try just the path $lsmod = "lsmod"; @@ -481,7 +481,7 @@ sub parse_config_depends # The idea is we look at all the configs that select it. If one # is already in our list of configs to enable, then there's nothing # else to do. If there isn't, we pick the first config that was -# enabled in the orignal config and use that. +# enabled in the original config and use that. sub parse_config_selects { my ($config, $p) = @_; @@ -593,6 +593,23 @@ while ($repeat) { } my %setconfigs; +my @preserved_kconfigs; +if (defined($ENV{'LMC_KEEP'})) { + @preserved_kconfigs = split(/:/,$ENV{LMC_KEEP}); +} + +sub in_preserved_kconfigs { + my $kconfig = $config2kfile{$_[0]}; + if (!defined($kconfig)) { + return 0; + } + foreach my $excl (@preserved_kconfigs) { + if($kconfig =~ /^$excl/) { + return 1; + } + } + return 0; +} # Finally, read the .config file and turn off any module enabled that # we could not find a reason to keep enabled. @@ -646,6 +663,11 @@ foreach my $line (@config_file) { } if (/^(CONFIG.*)=(m|y)/) { + if (in_preserved_kconfigs($1)) { + dprint "Preserve config $1"; + print; + next; + } if (defined($configs{$1})) { if ($localyesconfig) { $setconfigs{$1} = 'y'; |