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Re: [Minios-devel] [UNIKRAFT/COMPILER-RT PATCH 1/1] Initial port of compiler-rt to Unikraft



Hi Vlad,

Thanks for the patch! I have the following comments:

1. As it stands, you register the library as libcompiler-rt (with a dash) but 
all variables in the file are LIBCOMPILER_RT*, which breaks the build. It 
doesn't much matter whether it's a dash or underscore (I tested with a dash and 
it works), but please make it consistent.

2. I couldn't build this against newlib since include/sys/mman.h in the newlib 
glue code is missing #include <sys/types.h>, which means off_t is undefined and 
causes a compile error. Perhaps you can submit a small patch for this?

3. This library depends on libunwind. I suppose the reason you didn't include 
this dependency in Config.uk is that libunwind depends on compiler-rt, and 
Kconfig can't handle this circular dependency? If so, perhaps you could include 
a check in this library's Makefile.uk so that if libunwind isn't configured in 
you call $(error) ? 

Thanks again for the work!

-- Felipe

============================================================
Dr. Felipe Huici
Chief Researcher, Systems and Machine Learning Group
NEC Laboratories Europe GmbH
Kurfuerstenanlage 36, D-69115 Heidelberg
Tel.  +49
(0)6221 4342-241
Fax:  +49
(0)6221 4342-155
 
e-mail:
felipe.huici@xxxxxxxxx
============================================================
Registered at Amtsgericht Mannheim, Germany, HRB728558

On 21.03.19, 16:58, "Minios-devel on behalf of Vlad-Andrei BĂDOIU (78692)" 
<minios-devel-bounces@xxxxxxxxxxxxxxxxxxxx on behalf of 
vlad_andrei.badoiu@xxxxxxxxxxxxxxx> wrote:

    This is our initial port of compiler-rt to Unikraft as external
    library. For now you need newlib to make it work. Currently only
    the necessary functions needed by libunwind are used.
    
    Signed-off-by: Vlad-Andrei Badoiu <vlad_andrei.badoiu@xxxxxxxxxxxxxxx>
    ---
     Config.uk     |   3 +
     Makefile.uk   | 244 ++++++++++++++++++++++++++++++++++++++++++++++++++
     exportsyms.uk |   1 +
     3 files changed, 248 insertions(+)
     create mode 100644 Config.uk
     create mode 100644 Makefile.uk
     create mode 100644 exportsyms.uk
    
    diff --git a/Config.uk b/Config.uk
    new file mode 100644
    index 0000000..e72679d
    --- /dev/null
    +++ b/Config.uk
    @@ -0,0 +1,3 @@
    +menuconfig LIBCOMPILER_RT
    +    bool " compiler-rt - runtme support"
    +    default n
    diff --git a/Makefile.uk b/Makefile.uk
    new file mode 100644
    index 0000000..0af9c70
    --- /dev/null
    +++ b/Makefile.uk
    @@ -0,0 +1,244 @@
    +#  libcompiler-rt Makefile.uk
    +#
    +#  Authors: Vlad-Andrei Badoiu <vlad_andrei.badoiu@xxxxxxxxxxxxxxx>
    +#
    +#  Copyright (c) 2019, NEC Europe Ltd., NEC Corporation. All rights 
reserved.
    +#
    +#  Redistribution and use in source and binary forms, with or without
    +#  modification, are permitted provided that the following conditions
    +#  are met:
    +#
    +#  1. Redistributions of source code must retain the above copyright
    +#     notice, this list of conditions and the following disclaimer.
    +#  2. Redistributions in binary form must reproduce the above copyright
    +#     notice, this list of conditions and the following disclaimer in the
    +#     documentation and/or other materials provided with the distribution.
    +#  3. Neither the name of the copyright holder nor the names of its
    +#     contributors may be used to endorse or promote products derived from
    +#     this software without specific prior written permission.
    +#
    +#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS 
IS"
    +#  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 
THE
    +#  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 
PURPOSE
    +#  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS 
BE
    +#  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
    +#  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
    +#  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
    +#  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
    +#  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
    +#  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 
THE
    +#  POSSIBILITY OF SUCH DAMAGE.
    +#
    +#  THIS HEADER MAY NOT BE EXTRACTED OR MODIFIED IN ANY WAY.
    +#
    +
    
+################################################################################
    +# Library registration
    
+################################################################################
    +$(eval $(call addlib_s,libcompiler-rt,$(CONFIG_LIBCOMPILER_RT)))
    +
    
+################################################################################
    +# Sources
    
+################################################################################
    +LIBCOMPILER_RT_VERSION=7.0.0
    
+LIBCOMPILER_RT_URL=http://releases.llvm.org/$(LIBCOMPILER_RT_VERSION)/compiler-rt-$(LIBCOMPILER_RT_VERSION).src.tar.xz
    +LIBCOMPILER_RT_PATCHDIR=$(LIBCOMPILER_RT_BASE)/patches
    +$(eval $(call fetch,libcompiler-rt,$(LIBCOMPILER_RT_URL)))
    +$(eval $(call 
patch,libcompiler-rt,$(LIBCOMPILER_RT_PATCHDIR),compiler-rt-$(LIBCOMPILER_RT_VERSION).src))
    +
    
+################################################################################
    +# Helpers
    
+################################################################################
    +LIBCOMPILER_RT_SUBDIR=compiler-rt-$(LIBCOMPILER_RT_VERSION).src
    +LIBCOMPILER_RT_SRC=$(LIBCOMPILER_RT_ORIGIN)/$(LIBCOMPILER_RT_SUBDIR)
    +
    
+################################################################################
    +# Library includes
    
+################################################################################
    +CINCLUDES-$(CONFIG_LIBCOMPILER_RT) += -I$(LIBCOMPILER_RT_SRC)/lib
    +CINCLUDES-$(CONFIG_LIBCOMPILER_RT) += -I$(LIBCOMPILER_RT_SRC)/include
    +CXXINCLUDES-$(CONFIG_LIBCOMPILER_RT) += -I$(LIBCOMPILER_RT_SRC)/lib
    +CXXINCLUDES-$(CONFIG_LIBCOMPILER_RT) += -I$(LIBCOMPILER_RT_SRC)/include
    +
    
+################################################################################
    +# Global flags
    
+################################################################################
    +CONFIG_FLAGS       += -D__x86_64__
    +LIBCOMPILER_RT_CFLAGS-y    +=  $(CONFIG_FLAGS)
    +LIBCOMPILER_RT_CXXFLAGS-y    +=  $(CONFIG_FLAGS)
    +
    
+################################################################################
    +# Library sources
    
+################################################################################
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/divdf3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/subdf3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/popcountsi2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/floatuntisf.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/int_util.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/lshrti3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/ffsdi2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/ashldi3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/floattixf.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/mulvti3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/floatundisf.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/fixsfsi.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/powidf2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/udivmoddi4.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/absvdi2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/clzdi2.c
    +LIBCOMPILER_RT_SRCS-y += 
$(LIBCOMPILER_RT_SRC)/lib/builtins/mingw_fixfloat.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/ucmpdi2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/fixunsdfdi.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/udivmodti4.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/floattisf.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/divtc3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/mulodi4.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/cpu_model.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/fixunsxfsi.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/fixunstfdi.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/extendsftf2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/divsc3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/subvti3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/powisf2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/addvsi3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/floattitf.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/comparesf2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/cmpti2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/extenddftf2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/floatuntixf.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/negdf2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/multf3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/negsf2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/clzti2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/fixxfdi.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/fixunstfsi.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/ucmpti2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/fixdfdi.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/negvsi2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/clzsi2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/floatsidf.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/ctzsi2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/negvdi2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/multi3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/lshrdi3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/absvti2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/fixtfti.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/fixunssfsi.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/modsi3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/mulxc3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/powixf2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/divti3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/fixunssfdi.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/ashlti3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/fixtfsi.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/mulvsi3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/floatuntitf.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/divsf3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/powitf2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/mulsf3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/comparedf2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/paritysi2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/floatunditf.c
    +LIBCOMPILER_RT_SRCS-y += 
$(LIBCOMPILER_RT_SRC)/lib/builtins/apple_versioning.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/umodsi3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/bswapdi2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/fixxfti.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/negvti2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/fixunsxfdi.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/subvsi3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/subsf3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/udivti3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/udivdi3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/subtf3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/addvti3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/ashrdi3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/floatunsisf.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/addtf3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/popcountdi2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/divsi3.c
    +LIBCOMPILER_RT_SRCS-y += 
$(LIBCOMPILER_RT_SRC)/lib/builtins/enable_execute_stack.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/trunctfsf2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/truncdfsf2.c
    +LIBCOMPILER_RT_SRCS-y += 
$(LIBCOMPILER_RT_SRC)/lib/builtins/trampoline_setup.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/floatsisf.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/ctzdi2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/divdi3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/fixunstfti.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/muldc3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/ashrti3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/modti3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/floatdisf.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/fixunsdfti.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/floatundidf.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/negti2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/floatdixf.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/moddi3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/divmoddi4.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/floatunsitf.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/trunctfdf2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/mulosi4.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/absvsi2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/ctzti2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/floatsitf.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/bswapsi2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/muldf3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/floatuntidf.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/floatundixf.c
    +LIBCOMPILER_RT_SRCS-y += 
$(LIBCOMPILER_RT_SRC)/lib/builtins/gcc_personality_v0.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/fixunssfti.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/ffsti2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/floatditf.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/extendhfsf2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/parityti2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/floattidf.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/muldi3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/popcountti2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/umoddi3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/fixunsdfsi.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/paritydi2.c
    +LIBCOMPILER_RT_SRCS-y += 
$(LIBCOMPILER_RT_SRC)/lib/builtins/x86_64/floatdisf.c
    +LIBCOMPILER_RT_SRCS-y += 
$(LIBCOMPILER_RT_SRC)/lib/builtins/x86_64/floatdixf.c
    +LIBCOMPILER_RT_SRCS-y += 
$(LIBCOMPILER_RT_SRC)/lib/builtins/x86_64/floatdidf.c
    +LIBCOMPILER_RT_SRCS-y += 
$(LIBCOMPILER_RT_SRC)/lib/builtins/os_version_check.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/fixunsxfti.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/divmodsi4.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/muloti4.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/cmpdi2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/ppc/divtc3.c
    +LIBCOMPILER_RT_SRCS-y += 
$(LIBCOMPILER_RT_SRC)/lib/builtins/ppc/fixunstfdi.c
    +LIBCOMPILER_RT_SRCS-y += 
$(LIBCOMPILER_RT_SRC)/lib/builtins/ppc/floatunditf.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/ppc/gcc_qmul.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/ppc/gcc_qdiv.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/ppc/floatditf.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/ppc/gcc_qsub.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/ppc/fixtfdi.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/ppc/gcc_qadd.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/ppc/multc3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/udivmodsi4.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/fixdfsi.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/fixsfti.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/truncdfhf2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/comparetf2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/floatunsidf.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/addvdi3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/umodti3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/subvdi3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/truncsfhf2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/mulvdi3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/fixtfdi.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/udivsi3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/divdc3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/multc3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/divtf3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/negdi2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/eprintf.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/clear_cache.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/addsf3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/adddf3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/mulsc3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/ffssi2.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/fixsfdi.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/fixdfti.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/divxc3.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/floatdidf.c
    +LIBCOMPILER_RT_SRCS-y += $(LIBCOMPILER_RT_SRC)/lib/builtins/extendsfdf2.c
    diff --git a/exportsyms.uk b/exportsyms.uk
    new file mode 100644
    index 0000000..621e94f
    --- /dev/null
    +++ b/exportsyms.uk
    @@ -0,0 +1 @@
    +none
    -- 
    2.20.1
    
    
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