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From: Ahmad Fatoum <a.fatoum@pengutronix.de>
To: barebox@lists.infradead.org
Cc: Ahmad Fatoum <a.fatoum@pengutronix.de>
Subject: [PATCH 3/4] KASan: only print to stderr
Date: Mon, 11 Sep 2023 14:56:18 +0200	[thread overview]
Message-ID: <20230911125619.2782229-4-a.fatoum@pengutronix.de> (raw)
In-Reply-To: <20230911125619.2782229-1-a.fatoum@pengutronix.de>

Part of KASan output, like the stack trace, is already printed to
stderr, while some others are printed to stdout. Let's print everything
to stderr as not to complicate debugging when stdout and stderr go to
different consoles.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
 lib/kasan/report.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/kasan/report.c b/lib/kasan/report.c
index a67ba8c108f5..3d8f0c3b5162 100644
--- a/lib/kasan/report.c
+++ b/lib/kasan/report.c
@@ -138,7 +138,7 @@ static void print_shadow_for_address(const void *addr)
 			shadow_buf, SHADOW_BYTES_PER_ROW, 0);
 
 		if (row_is_guilty(shadow_row, shadow))
-			printf("%*c\n",
+			eprintf("%*c\n",
 				shadow_pointer_offset(shadow_row, shadow),
 				'^');
 
-- 
2.39.2




  parent reply	other threads:[~2023-09-11 12:57 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-09-11 12:56 [PATCH 0/4] KASan: print output directly " Ahmad Fatoum
2023-09-11 12:56 ` [PATCH 1/4] ARM: unwind: don't allocate while printing stack trace Ahmad Fatoum
2023-09-11 12:56 ` [PATCH 2/4] ARM64: backtrace: print stacktrace to stderr Ahmad Fatoum
2023-09-11 12:56 ` Ahmad Fatoum [this message]
2023-09-11 12:56 ` [PATCH 4/4] KASan: don't allocate memory while printing report Ahmad Fatoum
2023-09-12  9:36 ` [PATCH 0/4] KASan: print output directly to stderr Sascha Hauer

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