Added "techmap -share_map" option

1 files changed, 9 insertions, 0 deletions

diff --git a/passes/techmap/techmap.cc b/passes/techmap/techmap.cc
index c3af697be..551fc578c 100644
--- a/passes/techmap/techmap.cc
+++ b/passes/techmap/techmap.cc
@@ -372,6 +372,11 @@ struct TechmapPass : public Pass {
 		log("        transforms the internal RTL cells to the internal gate\n");
 		log("        library.\n");
 		log("\n");
+		log("    -share_map filename\n");
+		log("        like -map, but look for the file in the share directory (where the\n");
+		log("        yosys data files are). this is mainly used internally when techmap\n");
+		log("        is called from other commands.\n");
+		log("\n");
 		log("When a module in the map file has the 'techmap_celltype' attribute set, it will\n");
 		log("match cells with a type that match the text value of this attribute.\n");
 		log("\n");
@@ -423,6 +428,10 @@ struct TechmapPass : public Pass {
 				map_files.push_back(args[++argidx]);
 				continue;
 			}
+			if (args[argidx] == "-share_map" && argidx+1 < args.size()) {
+				map_files.push_back(get_share_file_name(args[++argidx]));
+				continue;
+			}
 			break;
 		}
 		extra_args(args, argidx, design);