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https://github.com/intel/linux-sgx
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Li, Xun
50 lines
2.3 KiB
Makefile
50 lines
2.3 KiB
Makefile
#
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# Copyright (C) 2011-2020 Intel Corporation. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in
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# the documentation and/or other materials provided with the
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# distribution.
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# * Neither the name of Intel Corporation nor the names of its
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# contributors may be used to endorse or promote products derived
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# from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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#
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# Mitigation options
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SGX_TRUSTED_LIBRARY_PATH ?= $(SGX_SDK)/lib64
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ifeq ($(MITIGATION-CVE-2020-0551), LOAD)
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MITIGATION_CFLAGS := -mindirect-branch-register -mfunction-return=thunk-extern
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MITIGATION_ASFLAGS := -Wa,-mlfence-after-load=yes -Wa,-mlfence-before-ret=not
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MITIGATION_ASFLAGS += -fno-plt
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SGX_TRUSTED_LIBRARY_PATH := $(SGX_TRUSTED_LIBRARY_PATH)/cve_2020_0551_load
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else ifeq ($(MITIGATION-CVE-2020-0551), CF)
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MITIGATION_CFLAGS := -mindirect-branch-register -mfunction-return=thunk-extern
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MITIGATION_ASFLAGS := -Wa,-mlfence-before-indirect-branch=register -Wa,-mlfence-before-ret=not
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MITIGATION_ASFLAGS += -fno-plt
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SGX_TRUSTED_LIBRARY_PATH := $(SGX_TRUSTED_LIBRARY_PATH)/cve_2020_0551_cf
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endif
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MITIGATION_CFLAGS += $(MITIGATION_ASFLAGS)
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