[PATCH] selftests/x86/sgx: Do not generate object files

[PATCH] selftests/x86/sgx: Do not generate object files

[Jarkko Sakkinen]

Invoke GCC in a way that it generates and links the binary in a single
step because we do not need the side products. Additionally, add a
missing dependency to encls.lds (i.e. make did not do anything if
encls.lds was changed).

Reported-by: Cedric Xing <cedric.xing@intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
---
 tools/testing/selftests/x86/sgx/Makefile | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/tools/testing/selftests/x86/sgx/Makefile b/tools/testing/selftests/x86/sgx/Makefile
index fdd67478c52b..b96aff1a7fba 100644
--- a/tools/testing/selftests/x86/sgx/Makefile
+++ b/tools/testing/selftests/x86/sgx/Makefile
@@ -29,14 +29,8 @@ $(OUTPUT)/encl_piggy.o: $(OUTPUT)/encl.bin $(OUTPUT)/encl.ss
 $(OUTPUT)/encl.bin: $(OUTPUT)/encl.elf $(OUTPUT)/sgxsign
 	$(OBJCOPY) -O binary $< $@
 
-$(OUTPUT)/encl.elf: $(OUTPUT)/encl.o $(OUTPUT)/encl_bootstrap.o
-	$(CC) $(ENCL_CFLAGS) -T encl.lds -o $@ $^
-
-$(OUTPUT)/encl.o: encl.c
-	$(CC) $(ENCL_CFLAGS) -c $< -o $@
-
-$(OUTPUT)/encl_bootstrap.o: encl_bootstrap.S
-	$(CC) $(ENCL_CFLAGS) -c $< -o $@
+$(OUTPUT)/encl.elf: encl.lds encl.c encl_bootstrap.S
+	$(CC) $(ENCL_CFLAGS) -T $^ -o $@
 
 $(OUTPUT)/encl.ss: $(OUTPUT)/encl.bin  $(OUTPUT)/sgxsign
 	$(OUTPUT)/sgxsign signing_key.pem $(OUTPUT)/encl.bin $(OUTPUT)/encl.ss
-- 
2.20.1