libzycorec: Core library needed by Zyan libraries

The ZyCoreC library provides platform independent types and macros
used by for Zyan libraries. We use this library only to provide the
data type definitions for libzydis. Since we have a libc (including
nolibc) in Unikraft, the source files are not required to be
compiled in our use case. Because libzydis will be the only library
so far that needs these headers, we hide libzycorec from the menu.

Signed-off-by: Simon Kuenzer <simon.kuenzer@neclab.eu>
Reviewed-by: Felipe Huici <felipe.huici@neclab.eu>

Config.uk

@@ -0,0 +1,7 @@
+# Invisible library configuration for libzycore-c, the Zyan Core Library for C
+config LIBZYCOREC
+	bool
+	default n
+	depends on ARCH_X86_32 || ARCH_X86_64
+	select LIBNOLIBC if !HAVE_LIBC
+	select LIBUKTIME if !HAVE_LIBC

Makefile.uk

@@ -0,0 +1,35 @@
+# -------------------------------------------------------
+#  ZycoreC
+# -------------------------------------------------------
+
+$(eval $(call addlib_s,libzycorec,$(CONFIG_LIBZYCOREC)))
+
+LIBZYCOREC_COMMIT=482298aecb59072f617fe8c53b91afd252ef1058
+LIBZYCOREC_URL=https://github.com/zyantific/zycore-c/archive/$(LIBZYCOREC_COMMIT).tar.gz
+
+$(eval $(call fetch,libzycorec,$(LIBZYCOREC_URL)))
+
+LIBZYCOREC_EXTRACTED=$(LIBZYCOREC_ORIGIN)/zycore-c-$(LIBZYCOREC_COMMIT)
+LIBZYCOREC_SOURCES=$(LIBZYCOREC_EXTRACTED)/src
+LIBZYCOREC_INCLUDES=$(LIBZYCOREC_EXTRACTED)/include
+LIBZYCOREC_COMPFLAGS-y=-Wno-implicit-fallthrough
+
+CINCLUDES-$(CONFIG_LIBZYCOREC)	+= -I$(LIBZYCOREC_BASE)/include
+CINCLUDES-$(CONFIG_LIBZYCOREC)	+= -I$(LIBZYCOREC_INCLUDES)
+
+#
+# NOTE: We use the only headers of this library for now
+#
+
+#LIBZYCOREC_SRCS-y += $(LIBZYCOREC_SOURCES)/Allocator.c
+#LIBZYCOREC_SRCS-y += $(LIBZYCOREC_SOURCES)/ArgParse.c
+#LIBZYCOREC_SRCS-y += $(LIBZYCOREC_SOURCES)/Bitset.c
+#LIBZYCOREC_SRCS-y += $(LIBZYCOREC_SOURCES)/Format.c
+#LIBZYCOREC_SRCS-y += $(LIBZYCOREC_SOURCES)/List.c
+#LIBZYCOREC_SRCS-y += $(LIBZYCOREC_SOURCES)/String.c
+#LIBZYCOREC_SRCS-y += $(LIBZYCOREC_SOURCES)/Vector.c
+#LIBZYCOREC_SRCS-y += $(LIBZYCOREC_SOURCES)/Zycore.c
+#LIBZYCOREC_SRCS-y += $(LIBZYCOREC_SOURCES)/API/Memory.c
+#LIBZYCOREC_SRCS-$(CONFIG_LIBPTHREAD_EMBEDDED) += $(LIBZYCOREC_SOURCES)/API/Synchronization.c
+#LIBZYCOREC_SRCS-$(CONFIG_LIBPTHREAD_EMBEDDED) += $(LIBZYCOREC_SOURCES)/API/Thread.c
+#LIBZYCOREC_SRCS-$(CONFIG_LIBVFSCORE) += $(LIBZYCOREC_SOURCES)/API/Terminal.c

include/ZycoreExportConfig.h

@@ -0,0 +1,42 @@
+
+#ifndef ZYCORE_EXPORT_H
+#define ZYCORE_EXPORT_H
+
+#ifdef ZYCORE_STATIC_DEFINE
+#  define ZYCORE_EXPORT
+#  define ZYCORE_NO_EXPORT
+#else
+#  ifndef ZYCORE_EXPORT
+#    ifdef Zycore_EXPORTS
+        /* We are building this library */
+#      define ZYCORE_EXPORT 
+#    else
+        /* We are using this library */
+#      define ZYCORE_EXPORT 
+#    endif
+#  endif
+
+#  ifndef ZYCORE_NO_EXPORT
+#    define ZYCORE_NO_EXPORT 
+#  endif
+#endif
+
+#ifndef ZYCORE_DEPRECATED
+#  define ZYCORE_DEPRECATED __attribute__ ((__deprecated__))
+#endif
+
+#ifndef ZYCORE_DEPRECATED_EXPORT
+#  define ZYCORE_DEPRECATED_EXPORT ZYCORE_EXPORT ZYCORE_DEPRECATED
+#endif
+
+#ifndef ZYCORE_DEPRECATED_NO_EXPORT
+#  define ZYCORE_DEPRECATED_NO_EXPORT ZYCORE_NO_EXPORT ZYCORE_DEPRECATED
+#endif
+
+#if 0 /* DEFINE_NO_DEPRECATED */
+#  ifndef ZYCORE_NO_DEPRECATED
+#    define ZYCORE_NO_DEPRECATED
+#  endif
+#endif
+
+#endif /* ZYCORE_EXPORT_H */