[dgen] create non-existing source stages

Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>

1 files changed, 27 insertions, 0 deletions

diff --git a/scripts/lib/ptxd_lib_dgen.awk b/scripts/lib/ptxd_lib_dgen.awk
index 728fecd3c..b6188124a 100644
--- a/scripts/lib/ptxd_lib_dgen.awk
+++ b/scripts/lib/ptxd_lib_dgen.awk
@@ -108,6 +108,28 @@ $1 ~ /^[A-Z_]*PACKAGES/ {
 	next;
 }
 
+#
+# Look for <PKG>_SOURCE definitions and corresponding rules to determine
+# which rules must be generated.
+# This assumes:
+#   "<PKG>_SOURCE := ...." defined a new source.
+#   "<PKG>_SOURCE = ...." reuses another source ('=' because the order is unknown)
+#   "(<PKG>_SOURCE):" defined a souce rule.
+#
+# Default rules will be generated for all new souces with no source rule.
+#
+# out:
+# PKG_source_url	array with value '1' for all PKG with new source.
+# PKG_source_rule	array with value '1' for all PKG with source rule.
+#
+$0 ~ /^[A-Z0-9_]*_SOURCE[[:space:]]*:=.*/ {
+	PKG = gensub(/^([A-Z0-9_]*)_SOURCE[[:space:]]*:=.*/, "\\1", "g");
+	PKG_source_url[PKG] = 1;
+}
+$1 ~ /^\$\([A-Z0-9_]*_SOURCE\):$/ {
+	PKG = gensub(/^\$\(([A-Z0-9_]*)_SOURCE\):$/, "\\1", "g", $1);
+	PKG_source_rule[PKG] = 1;
+}
 
 #
 # parses "PTX_MAP_DEP_PKG=FOO" lines, which are the raw dependencies
@@ -289,6 +311,11 @@ END {
 			print "$(STATEDIR)/" this_pkg ".targetinstall: "      "$(STATEDIR)/" this_pkg ".install.post"	> DGEN_DEPS_POST;
 			print "$(STATEDIR)/" this_pkg ".targetinstall.post: " "$(STATEDIR)/" this_pkg ".targetinstall"	> DGEN_DEPS_POST;
 		}
+		if ((this_PKG in PKG_source_url) && !(this_PKG in PKG_source_rule)) {
+			print "$(" this_PKG "_SOURCE):"								> DGEN_DEPS_POST;
+			print "	@$(call targetinfo)"								> DGEN_DEPS_POST;
+			print "	@$(call get, " this_PKG ")"							> DGEN_DEPS_POST;
+		}
 
 		#
 		# conditional dependency on autogen script