kpatch/0004-create-diff-object-support-skip-check-func-profiling.patch

From d4c1e4f3b5cb162bff499c1f28d11cbea626f787 Mon Sep 17 00:00:00 2001
From: Zhipeng Xie <xiezhipeng1@huawei.com>
Date: Sun, 14 Nov 2021 19:53:22 +0800
Subject: [PATCH 04/37] create-diff-object:support skip check func profiling
 calls

when kernel support livepatch without ftrace, we can skip check
func profiling calls.

Signed-off-by: Zhipeng Xie <xiezhipeng1@huawei.com>
---
 kpatch-build/create-diff-object.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/kpatch-build/create-diff-object.c b/kpatch-build/create-diff-object.c
index 2ad0791..02a722d 100644
--- a/kpatch-build/create-diff-object.c
+++ b/kpatch-build/create-diff-object.c
@@ -3917,6 +3917,7 @@ int main(int argc, char *argv[])
 	struct section *relasec, *symtab;
 	char *orig_obj, *patched_obj, *parent_name;
 	char *parent_symtab, *mod_symvers, *patch_name, *output_obj;
+	char *no_profiling_calls = NULL;
 
 	memset(&arguments, 0, sizeof(arguments));
 	argp_parse (&argp, argc, argv, 0, NULL, &arguments);
@@ -3970,7 +3971,12 @@ int main(int argc, char *argv[])
 	kpatch_compare_correlated_elements(kelf_patched);
 	kpatch_mark_ignored_functions_same(kelf_patched);
 	kpatch_mark_ignored_sections_same(kelf_patched);
-	kpatch_check_func_profiling_calls(kelf_patched);
+	no_profiling_calls = getenv("NO_PROFILING_CALLS");
+	if (!no_profiling_calls)
+		kpatch_check_func_profiling_calls(kelf_patched);
+	else
+		log_debug("NO_PROFILING_CALLS set\n");
+
 	kpatch_elf_teardown(kelf_orig);
 	kpatch_elf_free(kelf_orig);
 
-- 
2.33.0