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https://github.com/intel/linux-sgx
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lkalica-intel
6d89d8ed5a
libcxxrt library wasn't updated for a long time. CentOS 10 introduced a new version of gcc and g++ compilers which are more strict than compilers in CentOS 9 and earlier. Because of that, a build of cpprt module (which contains source code of libcxxrt) was failing. Now libcxxrt module was extracted from cpprt module to sgx/external/ directory and its sources (in the latest version) are cloned directly from the external Github repository. It required a few adjustments to build cpprt module successfully on Linux distros. --------- Signed-off-by: Lukasz Kalica <lukasz.kalica@intel.com>
83 lines
3.4 KiB
Makefile
83 lines
3.4 KiB
Makefile
#
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# Copyright (C) 2025 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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include ../../buildenv.mk
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SRCDIR := libcxxrt_code/src
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CPPRT := libcxxrt.a
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CFLAGS += $(ENCLAVE_CFLAGS)
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CXXFLAGS += $(ENCLAVE_CXXFLAGS)
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CPPFLAGS += -I$(COMMON_DIR)/inc \
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-I$(COMMON_DIR)/inc/tlibc \
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-I$(COMMON_DIR)/inc/stdc++ \
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-I$(COMMON_DIR)/inc/internal \
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CPPFLAGS += -I$(LINUX_SDK_DIR)/trts \
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-I$(LINUX_SDK_DIR)/trts/linux \
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# LIBCXXRT_NO_DEFAULT_TERMINATE_DIAGNOSTICS: diagnostics are written using printf but printf is not available in sgx_tcxx
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# LIBCXXRT_NO_EMERGENCY_MALLOC: if enabled sgx_tcxx will depend on sgx_pthread
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# INTEL_SGX_MOD: apply Intel customizations for libcxxrt
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CFLAGS += -DLIBCXXRT_NO_DEFAULT_TERMINATE_DIAGNOSTICS -DLIBCXXRT_NO_EMERGENCY_MALLOC -DINTEL_SGX_MOD
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CXXFLAGS += -DLIBCXXRT_NO_DEFAULT_TERMINATE_DIAGNOSTICS -DLIBCXXRT_NO_EMERGENCY_MALLOC -DINTEL_SGX_MOD
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# Excluding memory.cc, noexception.cc and libelftc_dem_gnu3.c from compilation because they are not needed for tcxx build. Excluding
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# unnecessary files from compilation narrows the attack surface
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# Excluding noexception.cc file is necessary because both files (exception.cc and noexception.cc) contain an implementation of
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# uncaught_exception() and uncaught_exceptions() functions. libcxxrt library can be built with or without exception support. For
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# SGX needs, it is built with exception support
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CC_SRCS := $(filter-out $(SRCDIR)/memory.cc $(SRCDIR)/noexception.cc, $(wildcard $(SRCDIR)/*.cc))
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C_SRCS := $(filter-out $(SRCDIR)/libelftc_dem_gnu3.c, $(wildcard $(SRCDIR)/*.c))
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CC_OBJS := $(CC_SRCS:.cc=.o)
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C_OBJS := $(C_SRCS:.c=.o)
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OBJS := $(sort $(C_OBJS) $(CC_OBJS))
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$(C_OBJS): %.o: %.c
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$(CC) -c $(CFLAGS) $(CPPFLAGS) $< -o $@
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$(CC_OBJS): %.o: %.cc
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$(CXX) -c $(CXXFLAGS) $(CPPFLAGS) $< -o $@
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.PHONY: all
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all: $(CPPRT)
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$(CPPRT): $(OBJS)
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$(AR) rs $@ $(OBJS)
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.PHONY: clean
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clean:
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@$(RM) $(OBJS) $(CPPRT)
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