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From:   Julien Thierry <jthierry@redhat.com>
To:     linux-kernel@vger.kernel.org
Cc:     jpoimboe@redhat.com, peterz@infradead.org, mhelsley@vmware.com,
        mbenes@suse.cz, Julien Thierry <jthierry@redhat.com>
Subject: [PATCH v3 2/4] objtool: Move orc outside of check
Date:   Thu, 30 Jul 2020 10:41:41 +0100
Message-Id: <20200730094143.27494-3-jthierry@redhat.com>
In-Reply-To: <20200730094143.27494-1-jthierry@redhat.com>
References: <20200730094143.27494-1-jthierry@redhat.com>
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Now that the objtool_file can be obtained outside of the check function,
orc generation builtin no longer requires check to explicitly call its
orc related functions.

Signed-off-by: Julien Thierry <jthierry@redhat.com>
---
 tools/objtool/builtin-check.c |  2 +-
 tools/objtool/builtin-orc.c   | 21 ++++++++++++++++++++-
 tools/objtool/check.c         | 18 +-----------------
 tools/objtool/objtool.h       |  2 +-
 tools/objtool/weak.c          |  2 +-
 5 files changed, 24 insertions(+), 21 deletions(-)

diff --git a/tools/objtool/builtin-check.c b/tools/objtool/builtin-check.c
index 698df1fa57f4..525dbcdf8394 100644
--- a/tools/objtool/builtin-check.c
+++ b/tools/objtool/builtin-check.c
@@ -58,5 +58,5 @@ int cmd_check(int argc, const char **argv)
 	if (!file)
 		return 1;
 
-	return check(file, false);
+	return check(file);
 }
diff --git a/tools/objtool/builtin-orc.c b/tools/objtool/builtin-orc.c
index 5641d759f7a3..2ba2d49bf63c 100644
--- a/tools/objtool/builtin-orc.c
+++ b/tools/objtool/builtin-orc.c
@@ -32,6 +32,7 @@ int cmd_orc(int argc, const char **argv)
 
 	if (!strncmp(argv[0], "gen", 3)) {
 		struct objtool_file *file;
+		int ret;
 
 		argc = parse_options(argc, argv, check_options, orc_usage, 0);
 		if (argc != 1)
@@ -43,7 +44,25 @@ int cmd_orc(int argc, const char **argv)
 		if (!file)
 			return 1;
 
-		return check(file, true);
+		ret = check(file);
+		if (ret)
+			return ret;
+
+		if (list_empty(&file->insn_list))
+			return 0;
+
+		ret = create_orc(file);
+		if (ret < 0)
+			return ret;
+
+		ret = create_orc_sections(file);
+		if (ret < 0)
+			return ret;
+
+		if (file->elf->changed)
+			return elf_write(file->elf);
+		else
+			return 0;
 	}
 
 	if (!strcmp(argv[0], "dump")) {
diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 051f2ee6b4bc..bb19e4c79e46 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -2750,7 +2750,7 @@ static int validate_reachable_instructions(struct objtool_file *file)
 	return 0;
 }
 
-int check(struct objtool_file *file, bool orc)
+int check(struct objtool_file *file)
 {
 	int ret, warnings = 0;
 
@@ -2797,22 +2797,6 @@ int check(struct objtool_file *file, bool orc)
 		warnings += ret;
 	}
 
-	if (orc) {
-		ret = create_orc(file);
-		if (ret < 0)
-			goto out;
-
-		ret = create_orc_sections(file);
-		if (ret < 0)
-			goto out;
-	}
-
-	if (file->elf->changed) {
-		ret = elf_write(file->elf);
-		if (ret < 0)
-			goto out;
-	}
-
 out:
 	if (ret < 0) {
 		/*
diff --git a/tools/objtool/objtool.h b/tools/objtool/objtool.h
index 62f0ab49dc0c..44415ed8c7be 100644
--- a/tools/objtool/objtool.h
+++ b/tools/objtool/objtool.h
@@ -21,7 +21,7 @@ struct objtool_file {
 
 struct objtool_file *objtool_setup_file(const char *_objname);
 
-int check(struct objtool_file *file, bool orc);
+int check(struct objtool_file *file);
 int orc_dump(const char *objname);
 int create_orc(struct objtool_file *file);
 int create_orc_sections(struct objtool_file *file);
diff --git a/tools/objtool/weak.c b/tools/objtool/weak.c
index 82698319f008..29180d599b08 100644
--- a/tools/objtool/weak.c
+++ b/tools/objtool/weak.c
@@ -17,7 +17,7 @@
 	return ENOSYS;							\
 })
 
-int __weak check(struct objtool_file *file, bool orc)
+int __weak check(struct objtool_file *file)
 {
 	UNSUPPORTED("check subcommand");
 }
-- 
2.21.3