linux-kernel - [PATCH 5.10 21/97] tools/virtio: compile with -pthread

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Message-Id: <20220523165815.629891303@linuxfoundation.org>
Date:   Mon, 23 May 2022 19:05:25 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Matthew Wilcox <willy@...radead.org>,
        "Michael S. Tsirkin" <mst@...hat.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.10 21/97] tools/virtio: compile with -pthread

From: Michael S. Tsirkin <mst@...hat.com>

[ Upstream commit f03560a57c1f60db6ac23ffd9714e1c69e2f95c7 ]

When using pthreads, one has to compile and link with -lpthread,
otherwise e.g. glibc is not guaranteed to be reentrant.

This replaces -lpthread.

Reported-by: Matthew Wilcox <willy@...radead.org>
Signed-off-by: Michael S. Tsirkin <mst@...hat.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 tools/virtio/Makefile | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/virtio/Makefile b/tools/virtio/Makefile
index 0d7bbe49359d..1b25cc7c64bb 100644
--- a/tools/virtio/Makefile
+++ b/tools/virtio/Makefile
@@ -5,7 +5,8 @@ virtio_test: virtio_ring.o virtio_test.o
 vringh_test: vringh_test.o vringh.o virtio_ring.o
 
 CFLAGS += -g -O2 -Werror -Wno-maybe-uninitialized -Wall -I. -I../include/ -I ../../usr/include/ -Wno-pointer-sign -fno-strict-overflow -fno-strict-aliasing -fno-common -MMD -U_FORTIFY_SOURCE -include ../../include/linux/kconfig.h
-LDFLAGS += -lpthread
+CFLAGS += -pthread
+LDFLAGS += -pthread
 vpath %.c ../../drivers/virtio ../../drivers/vhost
 mod:
 	${MAKE} -C `pwd`/../.. M=`pwd`/vhost_test V=${V}
-- 
2.35.1