linux-kernel - [PATCH for-next 1/2] selftests/Makefile: Create BUILD_TARGET directory for INSTALL_DEP

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Message-ID: <20241219085803.1145606-2-lizhijian@fujitsu.com>
Date: Thu, 19 Dec 2024 16:58:02 +0800
From: Li Zhijian <lizhijian@...itsu.com>
To: linux-kselftest@...r.kernel.org,
	netdev@...r.kernel.org
Cc: linux-kernel@...r.kernel.org,
	davem@...emloft.net,
	Eric Dumazet <edumazet@...gle.com>,
	Paolo Abeni <pabeni@...hat.com>,
	Simon Horman <horms@...nel.org>,
	Shuah Khan <shuah@...nel.org>,
	Li Zhijian <lizhijian@...itsu.com>
Subject: [PATCH for-next 1/2] selftests/Makefile: Create BUILD_TARGET directory for INSTALL_DEP_TARGETS

Similar to 'all' which will create BUILD_TARGET for TARGETS, we should
create BUILD_TARGET directory for INSTALL_DEP_TARGETS before generate
the binaries.

This helps to fix the following error for net target during
kselftest-install:
$ make O=$build/ kselftest-install TARGETS=net V=1
...
/usr/bin/ld: cannot open output file $O/kselftest/net/lib/csum: No such file or directory

Signed-off-by: Li Zhijian <lizhijian@...itsu.com>
---
 tools/testing/selftests/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
index 2401e973c359..fcaebd122d64 100644
--- a/tools/testing/selftests/Makefile
+++ b/tools/testing/selftests/Makefile
@@ -263,6 +263,7 @@ ifdef INSTALL_PATH
 	@ret=1;	\
 	for TARGET in $(TARGETS) $(INSTALL_DEP_TARGETS); do \
 		BUILD_TARGET=$$BUILD/$$TARGET;	\
+		mkdir $$BUILD_TARGET -p;			\
 		$(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET install \
 				INSTALL_PATH=$(INSTALL_PATH)/$$TARGET \
 				SRC_PATH=$(shell readlink -e $$(pwd)) \
-- 
2.44.0