[Minios-devel] [UNIKRAFT/LIBFXDIV PATCH v2 3/3] Initial port of fxdiv to Unikraft

[Vlad-Andrei BĂDOIU (78692) <vlad_andrei.badoiu@xxxxxxxxxxxxxxx>]

This is our initial port of fxdiv to Unikraft as an external library. Libcxx is
required. When adding the library to the dependency list it should stay after
libcxx (eg. 
...:$(UK_LIBS)/libunwind:$(UK_LIBS)/compiler-rt:$(UK_LIBS)/libcxxabi:
$(UK_LIBS)/libcxx:$(UK_LIBS)/newlib:$(UK_LIBS)/fxdiv:...)

Signed-off-by: Vlad-Andrei Badoiu <vlad_andrei.badoiu@xxxxxxxxxxxxxxx>
---
 Config.uk     |  5 ++++
 Makefile.uk   | 74 +++++++++++++++++++++++++++++++++++++++++++++++++++
 exportsyms.uk |  1 +
 3 files changed, 80 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..2ac79c3
--- /dev/null
+++ b/Config.uk
@@ -0,0 +1,5 @@
+menuconfig LIBFXDIV
+    bool "fxdiv - library for division via fixed-point multiplication by 
inverse"
+    select LIBCXX
+    default n
+
diff --git a/Makefile.uk b/Makefile.uk
new file mode 100644
index 0000000..4058579
--- /dev/null
+++ b/Makefile.uk
@@ -0,0 +1,74 @@
+#  libfxdiv config file
+#
+#  Authors: Vlad-Andrei Badoiu <vlad_andrei.badoiu@xxxxxxxxxxxxxxx>
+#
+#  Copyright (c) 2019, University Politehnica of Bucharest. 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 $(call addlib_s,libfxdiv,$(CONFIG_LIBFXDIV)))
+
+################################################################################
+# Sources
+################################################################################
+LIBFXDIV_VERSION=f8c5354679ec2597792bc70a9e06eff50c508b9a
+LIBFXDIV_URL=https://github.com/Maratyszcza/FXdiv/archive/f8c5354.zip
+LIBFXDIV_PATCHDIR=$(LIBFXDIV_BASE)/patches
+$(eval $(call fetch,libfxdiv,$(LIBFXDIV_URL)))
+
+################################################################################
+# Helpers
+################################################################################
+LIBFXDIV_SUBDIR=FXdiv-$(LIBFXDIV_VERSION)
+LIBFXDIV_SRC=$(LIBFXDIV_ORIGIN)/$(LIBFXDIV_SUBDIR)
+
+################################################################################
+# Library includes
+################################################################################
+CINCLUDES-$(CONFIG_LIBFXDIV) += -I$(LIBFXDIV_SRC)/include
+CINCLUDES-$(CONFIG_LIBFXDIV) += -I$(LIBFXDIV_BASE)/include
+CXXINCLUDES-$(CONFIG_LIBFXDIV) += -I$(LIBFXDIV_SRC)/include
+CXXINCLUDES-$(CONFIG_LIBFXDIV) += -I$(LIBFXDIV_BASE)/include
+
+################################################################################
+# Global flags
+################################################################################
+# Suppress some warnings to make the build process look neater
+SUPPRESS_FLAGS += -Wno-unused-parameter -Wno-unused-variable -Wno-nonnull      
\
+-Wno-unused-but-set-variable -Wno-unused-label -Wno-char-subscripts            
\
+-Wno-unused-function -Wno-missing-field-initializers -Wno-uninitialized        
        \
+-Wno-array-bounds -Wno-maybe-uninitialized -Wno-pointer-sign -Wno-unused-value 
\
+-Wno-unused-macros -Wno-parentheses -Wno-implicit-function-declaration         
\
+-Wno-missing-braces -Wno-endif-labels -Wno-unused-but-set-variable             
\
+-Wno-implicit-function-declaration -Wno-type-limits -Wno-sign-compare
+LIBFXDIV_CFLAGS-y    +=  $(SUPPRESS_FLAGS)
+LIBFXDIV_CXXFLAGS-y    +=  $(SUPPRESS_FLAGS)
+
diff --git a/exportsyms.uk b/exportsyms.uk
new file mode 100644
index 0000000..621e94f
--- /dev/null
+++ b/exportsyms.uk
@@ -0,0 +1 @@
+none
-- 
2.21.0

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