add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/tools/objtool/builtin-orc.c
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@@ -1,18 +1,6 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * Copyright (C) 2017 Josh Poimboeuf <jpoimboe@redhat.com>
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- *
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- * This program is free software; you can redistribute it and/or
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- * modify it under the terms of the GNU General Public License
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- * as published by the Free Software Foundation; either version 2
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- * of the License, or (at your option) any later version.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- * GNU General Public License for more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * along with this program; if not, see <http://www.gnu.org/licenses/>.
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  */
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 /*
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@@ -26,8 +14,7 @@
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 #include <string.h>
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 #include "builtin.h"
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-#include "check.h"
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-
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+#include "objtool.h"
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 static const char *orc_usage[] = {
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 	"objtool orc generate [<options>] file.o",
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@@ -44,13 +31,34 @@
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 		usage_with_options(orc_usage, check_options);
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 	if (!strncmp(argv[0], "gen", 3)) {
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+		struct objtool_file *file;
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+		int ret;
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+
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 		argc = parse_options(argc, argv, check_options, orc_usage, 0);
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 		if (argc != 1)
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 			usage_with_options(orc_usage, check_options);
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 		objname = argv[0];
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-		return check(objname, true);
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+		file = objtool_open_read(objname);
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+		if (!file)
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+			return 1;
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+
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+		ret = check(file);
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+		if (ret)
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+			return ret;
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+
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+		if (list_empty(&file->insn_list))
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+			return 0;
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+
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+		ret = orc_create(file);
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+		if (ret)
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+			return ret;
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+
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+		if (!file->elf->changed)
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+			return 0;
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+
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+		return elf_write(file->elf);
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 	}
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 	if (!strcmp(argv[0], "dump")) {