On 7 June 2018 at 19:52, Y Song ys114321@gmail.com wrote:
On Thu, Jun 7, 2018 at 3:57 AM, Anders Roxell anders.roxell@linaro.org wrote:
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
What is the build/make command to reproduce the above failure?
make -C tools/testing/selftests
Cheers, Anders
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@linaro.org
tools/testing/selftests/bpf/Makefile | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile index 607ed8729c06..67285591ffd7 100644 --- a/tools/testing/selftests/bpf/Makefile +++ b/tools/testing/selftests/bpf/Makefile @@ -16,10 +16,8 @@ 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
$(CC) -o $(TEST_CUSTOM_PROGS) -static $< -Wl,--build-id+$(TEST_CUSTOM_PROGS): $(OUTPUT)/%: %.c
$(CC) -o $@ -static $< -Wl,--build-id# Order correspond to 'make run_tests' order TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_lpm_map test_progs \ -- 2.17.1
-- To unsubscribe from this list: send the line "unsubscribe linux-kselftest" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html