scripts/dump-target-info.pl: add new function to DUMP devices

Add new function to dump-targer-info.pl to DUMP devices provided a
matching target/subtarget.

Example:

./scripts/dump-targer-info.pl devices ipq806x/generic

will produce the sorted list of devices defined in the following format:

device_id device_name

Devices may have alternative names, the script will dump each
alternative name in the same line of device_id.

Following the pattern:

device_id "PRIMARY DEVICE NAME" "ALT0 DEVICE NAME" "ALT1 DEVICE NAME" ...

Example:

tplink_ad7200 "TP-Link AD7200 v1/v2" "TP-Link Talon AD7200 v1/v2"

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
(cherry picked from commit 943c153cdd695904b9b7fe44800fc3546644973e)

diff --git a/scripts/dump-target-info.pl b/scripts/dump-target-info.pl
index 0e4af17fe049b684798da72e1f63afa1f40d7f30..eec06ed6c494a51aa1549f0c73a0fba3233c4155 100755 (executable)
--- a/scripts/dump-target-info.pl
+++ b/scripts/dump-target-info.pl
@@ -4,7 +4,7 @@ use strict;
 use warnings;
 use Cwd;
 
-my (%targets, %architectures, %kernels);
+my (%targets, %architectures, %kernels, %devices);
 
 $ENV{'TOPDIR'} = Cwd::getcwd();
 
@@ -56,6 +56,68 @@ sub parse_targetinfo {
        }
 }
 
+sub parse_devices {
+       my ($target_dir, $subtarget) = @_;
+
+       if (open M, "make -C '$target_dir' --no-print-directory DUMP=1 TARGET_BUILD=1 SUBTARGET='$subtarget' V=s |") {
+               my ($device_profile, $device_name, @device_alt_names, $device_is_alt);
+               while (defined(my $line = readline M)) {
+                       chomp $line;
+
+                       if ($line =~ /^Target-Profile-Name: (.+)$/) {
+                               $device_name = $1;
+                       }
+                       elsif ($line =~ /^Target-Profile: DEVICE_(.+)$/) {
+                               $device_profile = $1;
+                       }
+                       # Logic behind this.
+                       # DUMP duplicate info for each alternative device name and
+                       # the alternative device name are printed first before the
+                       # primary device name
+                       # Alternative device titles always have the full list of
+                       # all the alternative device name.
+                       # The device name pattern for an alternative device name is
+                       # Target-Profile-Name: ALT_NAME (PRIMARY_NAME)
+                       # We compare the detected device name and check if it does
+                       # match the alternative device name pattern with one of
+                       # the alternative device name in Alternative device titles:
+                       # If an alternative device name is detected,
+                       # alternative device is skipped.
+                       elsif ($line =~ /^Alternative device titles:$/) {
+                               while (defined($line = readline M)) {
+                                       if ($line =~ /^- (.+)$/) {
+                                               if ($device_name =~ /^\Q$1\E \((.+)\)$/) {
+                                                       $device_is_alt = 1;
+                                                       last;
+                                               }
+                                               push @device_alt_names, $1;
+                                       }
+                                       else {
+                                               last;
+                                       }
+                               }
+                       }
+                       if ($line =~ /^@\@$/) {
+                               if ($device_name && $device_profile && ! $device_is_alt) {
+                                       push @{$devices{$device_profile}}, $device_name;
+
+                                       if (scalar @device_alt_names) {
+                                               foreach my $device_alt_name (sort values @device_alt_names) {
+                                                       push @{$devices{$device_profile}}, $device_alt_name;
+                                               }
+                                       }
+                               }
+
+                               undef $device_name;
+                               undef $device_profile;
+                               undef $device_is_alt;
+                               @device_alt_names = ();
+                       }
+               }
+               close M;
+       }
+}
+
 sub get_targetinfo {
        foreach my $target_makefile (glob "target/linux/*/Makefile") {
                my ($target_dir) = $target_makefile =~ m!^(.+)/Makefile$!;
@@ -86,6 +148,15 @@ sub get_targetinfo {
        }
 }
 
+sub get_devices {
+       my ($target_subtarget) = @_;
+       my ($target, $subtarget) = split /\//, $target_subtarget;
+
+       my ($target_dir) = "target/linux/" . $target;
+
+       parse_devices($target_dir, $subtarget)
+}
+
 if (@ARGV == 1 && $ARGV[0] eq 'targets') {
        get_targetinfo();
        foreach my $target_name (sort keys %targets) {
@@ -104,8 +175,15 @@ elsif (@ARGV == 1 && $ARGV[0] eq 'kernels') {
                printf "%s %s\n", $target_name, join ' ', @{$kernels{$target_name}};
        }
 }
+elsif (@ARGV == 2 && $ARGV[0] eq 'devices') {
+       get_devices($ARGV[1]);
+       foreach my $device (sort keys %devices) {
+               printf "%s \"%s\"\n", $device, join '" "', @{$devices{$device}};
+       }
+}
 else {
        print "Usage: $0 targets\n";
        print "Usage: $0 architectures\n";
        print "Usage: $0 kernels\n";
+       print "Usage: $0 devices <target/subtarget>\n";
 }