Linux 5.0: Measure linking duration

From 889545e78bae41f6c4fe65ffe63326bb266d7caf Mon Sep 17 00:00:00 2001
From: Marco Ammon <marco.ammon@fau.de>
Date: Thu, 19 Sep 2019 13:03:20 +0200
Subject: [PATCH] Makefile: Measure linking time

---
 Makefile | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Makefile b/Makefile
index d5713e7b1e50..46a9ac50aeea 100644
--- a/Makefile
+++ b/Makefile
@@ -1018,7 +1018,9 @@ vmlinux: scripts/link-vmlinux.sh autoksyms_recursive $(vmlinux-deps) FORCE
 ifdef CONFIG_GDB_SCRIPTS
 	$(Q)ln -fsn $(abspath $(srctree)/scripts/gdb/vmlinux-gdb.py)
 endif
+	date +"%H:%M:%S.%N" >>boot_times
 	+$(call if_changed,link-vmlinux)
+	date +"%H:%M:%S.%N" >>boot_times
 
 targets := vmlinux
 
-- 
2.23.0