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Date:   Wed,  4 Mar 2020 17:36:27 -0700
From:   Shuah Khan <>
Cc:     Shuah Khan <>,,,,,,
Subject: [PATCH v2 2/4] selftests: Fix seccomp to support relocatable build (O=objdir)

Fix seccomp relocatable builds. This is a simple fix to use the
right variable TEST_CUSTOM_PROGS to continue to do custom
build to preserve dependency on kselftest_harness.h local header.
This change applies cutom rule to seccomp_bpf seccomp_benchmark
for a simpler logic. 

Uses $(OUTPUT) defined in 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 <>
 tools/testing/selftests/seccomp/Makefile | 19 +++++++++----------
 1 file changed, 9 insertions(+), 10 deletions(-)

diff --git a/tools/testing/selftests/seccomp/Makefile b/tools/testing/selftests/seccomp/Makefile
index 1760b3e39730..355bcbc0394a 100644
--- a/tools/testing/selftests/seccomp/Makefile
+++ b/tools/testing/selftests/seccomp/Makefile
@@ -1,17 +1,16 @@
 # SPDX-License-Identifier: GPL-2.0
-include ../
+CFLAGS += -Wl,-no-as-needed -Wall
+LDFLAGS += -lpthread
 .PHONY: all clean
-BINARIES := seccomp_bpf seccomp_benchmark
-CFLAGS += -Wl,-no-as-needed -Wall
+include ../
+# OUTPUT set by
+TEST_CUSTOM_PROGS := $(OUTPUT)/seccomp_bpf $(OUTPUT)/seccomp_benchmark
-seccomp_bpf: seccomp_bpf.c ../kselftest_harness.h
-	$(CC) $(CFLAGS) $(LDFLAGS) $< -lpthread -o $@
+$(TEST_CUSTOM_PROGS): ../kselftest_harness.h
-all: $(BINARIES)

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