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From: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
To: linux-sgx@vger.kernel.org
Cc: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>,
	Sean Christopherson <sean.j.christopherson@intel.com>,
	Cedric Xing <cedric.xing@intel.com>
Subject: [PATCH] selftests/x86/sgx: Fix objcopy call in the Makefile
Date: Fri, 16 Aug 2019 19:00:10 +0300	[thread overview]
Message-ID: <20190816160010.14203-1-jarkko.sakkinen@linux.intel.com> (raw)

Use $(OBJCOPY) to point to the correct objcopy binary. Do not discard
.got.plt because we need to detect libcalls and fail the compilation if
they exist.

Cc: Sean Christopherson <sean.j.christopherson@intel.com>
Reported-by: Cedric Xing <cedric.xing@intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
---
 tools/testing/selftests/x86/sgx/Makefile | 2 +-
 tools/testing/selftests/x86/sgx/encl.lds | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/x86/sgx/Makefile b/tools/testing/selftests/x86/sgx/Makefile
index 10136b73096b..018814d0305b 100644
--- a/tools/testing/selftests/x86/sgx/Makefile
+++ b/tools/testing/selftests/x86/sgx/Makefile
@@ -23,7 +23,7 @@ $(OUTPUT)/encl_piggy.o: $(OUTPUT)/encl.bin $(OUTPUT)/encl.ss
 	$(CC) $(HOST_CFLAGS) -c encl_piggy.S -o $@
 
 $(OUTPUT)/encl.bin: $(OUTPUT)/encl.elf $(OUTPUT)/sgxsign
-	objcopy --remove-section=.got.plt -O binary $< $@
+	$(OBJCOPY) -O binary $< $@
 
 $(OUTPUT)/encl.elf: $(OUTPUT)/encl.o $(OUTPUT)/encl_bootstrap.o
 	$(CC) $(ENCL_CFLAGS) -T encl.lds -o $@ $^
diff --git a/tools/testing/selftests/x86/sgx/encl.lds b/tools/testing/selftests/x86/sgx/encl.lds
index 2ee01ac3ec79..9a56d3064104 100644
--- a/tools/testing/selftests/x86/sgx/encl.lds
+++ b/tools/testing/selftests/x86/sgx/encl.lds
@@ -31,3 +31,4 @@ ASSERT(!DEFINED(.altinstructions), "ALTERNATIVES are not supported in enclaves")
 ASSERT(!DEFINED(.altinstr_replacement), "ALTERNATIVES are not supported in enclaves")
 ASSERT(!DEFINED(.discard.retpoline_safe), "RETPOLINE ALTERNATIVES are not supported in enclaves")
 ASSERT(!DEFINED(.discard.nospec), "RETPOLINE ALTERNATIVES are not supported in enclaves")
+ASSERT(!DEFINED(.got.plt), "Libcalls are not supported in enclaves")
-- 
2.20.1


                 reply	other threads:[~2019-08-16 16:00 UTC|newest]

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