Adding Makefiles to build libraries on Linux/macOS

.gitignore

@@ -0,0 +1,52 @@
+# Prerequisites
+*.d
+
+# Object files
+*.o
+*.ko
+*.obj
+*.elf
+
+# Linker output
+*.ilk
+*.map
+*.exp
+
+# Precompiled Headers
+*.gch
+*.pch
+
+# Libraries
+*.lib
+*.a
+*.la
+*.lo
+
+# Shared objects (inc. Windows DLLs)
+*.dll
+*.so
+*.so.*
+*.dylib
+
+# Executables
+*.exe
+*.out
+*.app
+*.i*86
+*.x86_64
+*.hex
+
+# Debug files
+*.dSYM/
+*.su
+*.idb
+*.pdb
+
+# Kernel Module Compile Results
+*.mod*
+*.cmd
+.tmp_versions/
+modules.order
+Module.symvers
+Mkfile.old
+dkms.conf

build_rules.mk

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+# Check for linux vs macOS and account for clang/ld path
+UNAME_S     := $(shell uname -s)
+
+ifeq ($(UNAME_S),Linux)
+		CC      := clang
+		CXX     := clang++
+		LD      := ld.lld
+		AR      := llvm-ar
+		CDIR    := linux
+endif
+ifeq ($(UNAME_S),Darwin)
+		CC      := /usr/local/opt/llvm/bin/clang
+		CXX     := /usr/local/opt/llvm/bin/clang++
+		LD      := /usr/local/opt/llvm/bin/ld.lld
+		AR      := /usr/local/opt/llvm/bin/llvm-ar
+		CDIR    := macos
+endif
+
+# Allow for 'make VERBOSE=1' to see the recepie executions
+ifndef VERBOSE
+  VERB := @
+endif
+
+#---------------------------------------------------------------------------------
+%.a:
+#---------------------------------------------------------------------------------
+	$(VERB) echo $(notdir $@)
+	$(VERB) rm -f $@
+	$(VERB) $(AR) -rc $@ $^
+
+#---------------------------------------------------------------------------------
+%.elf: $(OFILES)
+	$(VERB) echo linking ... $(notdir $@)
+	$(VERB) $(LD)  $^ $(LDFLAGS) $(LIBPATHS) $(LIBS) -o $@
+
+#---------------------------------------------------------------------------------
+%.o: %.cpp
+	$(VERB) echo $(notdir $<)
+	$(VERB) $(CXX) $(DEPSOPT) $(CXXFLAGS) -o $@ $< $(ERROR_FILTER)
+
+#---------------------------------------------------------------------------------
+%.o: %.c
+	$(VERB) echo $(notdir $<)
+	$(VERB) $(CC) $(DEPSOPT) $(CFLAGS) -o $@ $< $(ERROR_FILTER)
+
+#---------------------------------------------------------------------------------
+%.o: %.m
+	$(VERB) echo $(notdir $<)
+	$(VERB) $(CC) $(DEPSOPT) $(OBJCFLAGS) -o $@ $< $(ERROR_FILTER)
+
+#---------------------------------------------------------------------------------
+%.o: %.s
+	$(VERB) echo $(notdir $<)
+	$(VERB) $(CC) $(DEPSOPT) -x assembler-with-cpp $(ASFLAGS) -o $@ $< $(ERROR_FILTER)
+
+#---------------------------------------------------------------------------------
+%.o: %.S
+	$(VERB) echo $(notdir $<)
+	$(VERB) $(CC) $(DEPSOPT) -x assembler-with-cpp $(ASFLAGS) -o $@ $< $(ERROR_FILTER)
+
+#---------------------------------------------------------------------------------
+# canned command sequence for binary data
+#---------------------------------------------------------------------------------
+define bin2o
+	$(VERB) bin2s -a 64 $< | $(AS) -o $(@)
+	$(VERB) echo "extern const u8" `(echo $(<F) | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`"_end[];" > `(echo $(<F) | tr . _)`.h
+	$(VERB) echo "extern const u8" `(echo $(<F) | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`"[];" >> `(echo $(<F) | tr . _)`.h
+	$(VERB) echo "extern const u32" `(echo $(<F) | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`_size";" >> `(echo $(<F) | tr . _)`.h
+endef