Added Rosalina, see details

- see release notes
- ( ͡° ͜ʖ ͡°)( ͡° ͜ʖ ͡°)( ͡° ͜ʖ ͡°)
- (∩ ͡° ͜ʖ ͡°)⊃━☆ﾟ
- ( ͡ᵔ ͜ʖ ͡ᵔ) ♫┌( ͡° ͜ʖ ͡°)┘♪ ♫└( ͡° ͜ʖ ͡°)┐♪

sysmodules/rosalina/kernel_extension/Makefile

@@ -0,0 +1,47 @@
+rwildcard = $(foreach d, $(wildcard $1*), $(filter $(subst *, %, $2), $d) $(call rwildcard, $d/, $2))
+
+ifeq ($(strip $(DEVKITARM)),)
+$(error "Please set DEVKITARM in your environment. export DEVKITARM=<path to>devkitARM")
+endif
+
+include $(DEVKITARM)/base_tools
+
+name := kernel_extension
+
+dir_source := source
+dir_include := include
+dir_build := build
+
+ARCH    := -mcpu=mpcore -mfpu=vfp
+ASFLAGS := $(ARCH)
+CFLAGS  := -Wall -Wextra -MMD -MP -marm $(ASFLAGS) -I$(dir_include) -fno-builtin -std=c11 -Wno-main -O2 -flto -ffast-math \
+-mword-relocations -ffunction-sections -fdata-sections
+LDFLAGS := -nostdlib -Wl,--gc-sections $(ARCH)
+
+objects = $(patsubst $(dir_source)/%.s, $(dir_build)/%.o, \
+		$(patsubst $(dir_source)/%.c, $(dir_build)/%.o, \
+		$(call rwildcard, $(dir_source), *.s *.c)))
+
+.PHONY: all
+all: ../$(dir_build)/$(name).bin
+
+.PHONY: clean
+clean:
+	@rm -rf $(dir_build)
+
+../$(dir_build)/$(name).bin: $(dir_build)/$(name).elf
+	$(OBJCOPY) -S -O binary $< $@
+
+$(dir_build)/$(name).elf: $(objects)
+	$(CC) $(LDFLAGS) -T linker.ld $(OUTPUT_OPTION) $^
+
+$(dir_build)/memory.o : CFLAGS += -O3 -marm
+
+$(dir_build)/%.o: $(dir_source)/%.c
+	@mkdir -p "$(@D)"
+	$(COMPILE.c) $(OUTPUT_OPTION) $<
+
+$(dir_build)/%.o: $(dir_source)/%.s
+	@mkdir -p "$(@D)"
+	$(COMPILE.s) $(OUTPUT_OPTION) $<
+include $(call rwildcard, $(dir_build), *.d)