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authorJosh Poimboeuf <jpoimboe@redhat.com>2022-04-18 09:50:38 -0700
committerPeter Zijlstra <peterz@infradead.org>2022-04-22 12:32:03 +0200
commit26e176896a5bb9222ae3433da902edd2566a61a4 (patch)
treece6ba0fdc6b1373f09692f2d151d3892125ffbb5 /tools
parent72064474964724c59ddff58a581a31b1ede75cf9 (diff)
downloadlinux-26e176896a5bb9222ae3433da902edd2566a61a4.tar.gz
objtool: Make static call annotation optional
As part of making objtool more modular, put the existing static call
code behind a new '--static-call' option.

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Miroslav Benes <mbenes@suse.cz>
Link: https://lkml.kernel.org/r/d59ac57ef3d6d8380cdce20322314c9e2e556750.1650300597.git.jpoimboe@redhat.com
Diffstat (limited to 'tools')
-rw-r--r--tools/objtool/builtin-check.c2
-rw-r--r--tools/objtool/check.c10
-rw-r--r--tools/objtool/include/objtool/builtin.h1
3 files changed, 9 insertions, 4 deletions
diff --git a/tools/objtool/builtin-check.c b/tools/objtool/builtin-check.c
index 30971cc50c63..c8c4d2bab42f 100644
--- a/tools/objtool/builtin-check.c
+++ b/tools/objtool/builtin-check.c
@@ -40,6 +40,7 @@ const struct option check_options[] = {
 	OPT_BOOLEAN('r', "retpoline", &opts.retpoline, "validate and annotate retpoline usage"),
 	OPT_BOOLEAN('l', "sls", &opts.sls, "validate straight-line-speculation mitigations"),
 	OPT_BOOLEAN('s', "stackval", &opts.stackval, "validate frame pointer rules"),
+	OPT_BOOLEAN('t', "static-call", &opts.static_call, "annotate static calls"),
 	OPT_BOOLEAN('u', "uaccess", &opts.uaccess, "validate uaccess rules for SMAP"),
 	OPT_CALLBACK_OPTARG(0, "dump", NULL, NULL, "orc", "dump metadata", parse_dump),
 
@@ -93,6 +94,7 @@ static bool opts_valid(void)
 	    opts.retpoline	||
 	    opts.sls		||
 	    opts.stackval	||
+	    opts.static_call	||
 	    opts.uaccess) {
 		if (opts.dump_orc) {
 			fprintf(stderr, "--dump can't be combined with other options\n");
diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 3e02126738a1..b9ac351ea08b 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -3969,10 +3969,12 @@ int check(struct objtool_file *file)
 		warnings += ret;
 	}
 
-	ret = create_static_call_sections(file);
-	if (ret < 0)
-		goto out;
-	warnings += ret;
+	if (opts.static_call) {
+		ret = create_static_call_sections(file);
+		if (ret < 0)
+			goto out;
+		warnings += ret;
+	}
 
 	if (opts.retpoline) {
 		ret = create_retpoline_sites_sections(file);
diff --git a/tools/objtool/include/objtool/builtin.h b/tools/objtool/include/objtool/builtin.h
index 24a7ff4f37cc..dc4757205b8d 100644
--- a/tools/objtool/include/objtool/builtin.h
+++ b/tools/objtool/include/objtool/builtin.h
@@ -19,6 +19,7 @@ struct opts {
 	bool retpoline;
 	bool sls;
 	bool stackval;
+	bool static_call;
 	bool uaccess;
 
 	/* options: */