From: Shuah Khan <skhan@linuxfoundation.org>
To: shuah@kernel.org, keescook@chromium.org, luto@amacapital.net,
wad@chromium.org, daniel@iogearbox.net, kafai@fb.com, yhs@fb.com,
andriin@fb.com, gregkh@linuxfoundation.org, tglx@linutronix.de
Cc: Shuah Khan <skhan@linuxfoundation.org>,
khilman@baylibre.com, mpe@ellerman.id.au,
linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org,
netdev@vger.kernel.org, bpf@vger.kernel.org
Subject: [PATCH v3] selftests: Fix seccomp to support relocatable build (O=objdir)
Date: Fri, 13 Mar 2020 15:24:04 -0600 [thread overview]
Message-ID: <20200313212404.24552-1-skhan@linuxfoundation.org> (raw)
Fix seccomp relocatable builds. This is a simple fix to use the right
lib.mk variable TEST_GEN_PROGS with dependency on kselftest_harness.h
header, and defining LDFLAGS for pthread lib.
Removes custom clean rule which is no longer necessary with the use of
TEST_GEN_PROGS.
Uses $(OUTPUT) defined in lib.mk to handle build relocation.
The following use-cases work with this change:
In seccomp directory:
make all and make clean
From top level from main Makefile:
make kselftest-install O=objdir ARCH=arm64 HOSTCC=gcc \
CROSS_COMPILE=aarch64-linux-gnu- TARGETS=seccomp
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
---
Changes since v2:
-- Using TEST_GEN_PROGS is sufficient to generate objects.
Addresses review comments from Kees Cook.
tools/testing/selftests/seccomp/Makefile | 18 ++++++++----------
1 file changed, 8 insertions(+), 10 deletions(-)
diff --git a/tools/testing/selftests/seccomp/Makefile b/tools/testing/selftests/seccomp/Makefile
index 1760b3e39730..a0388fd2c3f2 100644
--- a/tools/testing/selftests/seccomp/Makefile
+++ b/tools/testing/selftests/seccomp/Makefile
@@ -1,17 +1,15 @@
# SPDX-License-Identifier: GPL-2.0
-all:
-
-include ../lib.mk
+CFLAGS += -Wl,-no-as-needed -Wall
+LDFLAGS += -lpthread
.PHONY: all clean
-BINARIES := seccomp_bpf seccomp_benchmark
-CFLAGS += -Wl,-no-as-needed -Wall
+include ../lib.mk
+
+# OUTPUT set by lib.mk
+TEST_GEN_PROGS := $(OUTPUT)/seccomp_bpf $(OUTPUT)/seccomp_benchmark
-seccomp_bpf: seccomp_bpf.c ../kselftest_harness.h
- $(CC) $(CFLAGS) $(LDFLAGS) $< -lpthread -o $@
+$(TEST_GEN_PROGS): ../kselftest_harness.h
-TEST_PROGS += $(BINARIES)
-EXTRA_CLEAN := $(BINARIES)
+all: $(TEST_GEN_PROGS)
-all: $(BINARIES)
--
2.20.1
next reply other threads:[~2020-03-13 21:24 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-13 21:24 Shuah Khan [this message]
2020-03-13 23:18 ` [PATCH v3] selftests: Fix seccomp to support relocatable build (O=objdir) Kees Cook
2020-03-13 23:38 ` Shuah Khan
2020-03-16 12:12 ` Michael Ellerman
2020-03-16 21:05 ` Kees Cook
2020-03-19 3:15 ` Michael Ellerman
2020-03-23 20:18 ` Shuah Khan
2020-03-23 20:50 ` Kees Cook
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