1 files changed, 68 insertions, 0 deletions
diff --git a/tools/objtool/builtin-orc.c b/tools/objtool/builtin-orc.c
new file mode 100644
index 000000000..77ea2b971
--- /dev/null
+++ b/tools/objtool/builtin-orc.c
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2017 Josh Poimboeuf <jpoimboe@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+/*
+ * objtool orc:
+ *
+ * This command analyzes a .o file and adds .orc_unwind and .orc_unwind_ip
+ * sections to it, which is used by the in-kernel ORC unwinder.
+ *
+ * This command is a superset of "objtool check".
+ */
+
+#include <string.h>
+#include "builtin.h"
+#include "check.h"
+
+
+static const char *orc_usage[] = {
+	"objtool orc generate [<options>] file.o",
+	"objtool orc dump file.o",
+	NULL,
+};
+
+int cmd_orc(int argc, const char **argv)
+{
+	const char *objname;
+
+	argc--; argv++;
+	if (argc <= 0)
+		usage_with_options(orc_usage, check_options);
+
+	if (!strncmp(argv[0], "gen", 3)) {
+		argc = parse_options(argc, argv, check_options, orc_usage, 0);
+		if (argc != 1)
+			usage_with_options(orc_usage, check_options);
+
+		objname = argv[0];
+
+		return check(objname, true);
+	}
+
+	if (!strcmp(argv[0], "dump")) {
+		if (argc != 2)
+			usage_with_options(orc_usage, check_options);
+
+		objname = argv[1];
+
+		return orc_dump(objname);
+	}
+
+	usage_with_options(orc_usage, check_options);
+
+	return 0;
+}