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Date: Fri, 8 Jun 2018 08:51:27 +0200 From: Anders Roxell <anders.roxell@...aro.org> To: ast@...nel.org, daniel@...earbox.net, ys114321@...il.com, shuah@...nel.org Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org, Anders Roxell <anders.roxell@...aro.org> Subject: [PATCH v2] selftests: bpf: fix urandom_read build issue gcc complains that urandom_read gets built twice. gcc -o tools/testing/selftests/bpf/urandom_read -static urandom_read.c -Wl,--build-id gcc -Wall -O2 -I../../../include/uapi -I../../../lib -I../../../lib/bpf -I../../../../include/generated -I../../../include urandom_read.c urandom_read -lcap -lelf -lrt -lpthread -o tools/testing/selftests/bpf/urandom_read gcc: fatal error: input file ‘tools/testing/selftests/bpf/urandom_read’ is the same as output file compilation terminated. ../lib.mk:110: recipe for target 'tools/testing/selftests/bpf/urandom_read' failed To fix this issue remove the urandom_read target and so target TEST_CUSTOM_PROGS gets used. Fixes: 81f77fd0deeb ("bpf: add selftest for stackmap with BPF_F_STACK_BUILD_ID") Signed-off-by: Anders Roxell <anders.roxell@...aro.org> Acked-by: Yonghong Song <yhs@...com> --- tools/testing/selftests/bpf/Makefile | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile index 607ed8729c06..7a6214e9ae58 100644 --- a/tools/testing/selftests/bpf/Makefile +++ b/tools/testing/selftests/bpf/Makefile @@ -16,9 +16,7 @@ LDLIBS += -lcap -lelf -lrt -lpthread TEST_CUSTOM_PROGS = $(OUTPUT)/urandom_read all: $(TEST_CUSTOM_PROGS) -$(TEST_CUSTOM_PROGS): urandom_read - -urandom_read: urandom_read.c +$(TEST_CUSTOM_PROGS): $(OUTPUT)/%: %.c $(CC) -o $(TEST_CUSTOM_PROGS) -static $< -Wl,--build-id # Order correspond to 'make run_tests' order -- 2.17.1
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