linux-kernel - [PATCH v2 03/14] selftests/nolibc: print running log to screen

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Message-Id: <1373113bdaf2d4812c3d712684bd0019f992a032.1689759351.git.falcon@tinylab.org>
Date:   Wed, 19 Jul 2023 21:20:17 +0800
From:   Zhangjin Wu <falcon@...ylab.org>
To:     w@....eu
Cc:     thomas@...ch.de, arnd@...db.de, falcon@...ylab.org,
        linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org
Subject: [PATCH v2 03/14] selftests/nolibc: print running log to screen

When poweroff fails, qemu-system will hang there without any output.

It is very hard to debug in such case, let's print the running log to
the screen to allow users to learn what is happening at the first
glance, without editing the Makefile manually every time.

To get a clean output, the 'grep status' command can be used.

Signed-off-by: Zhangjin Wu <falcon@...ylab.org>
---
 tools/testing/selftests/nolibc/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/nolibc/Makefile b/tools/testing/selftests/nolibc/Makefile
index 8c531518bb9f..f1c8e4a0f1b2 100644
--- a/tools/testing/selftests/nolibc/Makefile
+++ b/tools/testing/selftests/nolibc/Makefile
@@ -168,7 +168,7 @@ libc-test: nolibc-test.c
 
 # common macros for logging
 RUN_OUT = $(CURDIR)/run.out
-LOG_OUT = > "$(RUN_OUT)"
+LOG_OUT = | tee "$(RUN_OUT)"
 REPORT_RUN_OUT = $(REPORT) "$(RUN_OUT)"
 
 # local libc-test
-- 
2.25.1