diff options
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 146 |
1 files changed, 28 insertions, 118 deletions
@@ -1,138 +1,49 @@ -DO != echo -n > deps.mk +.PHONY: all +all: setup + $(MAKE) -f scripts/makefile -# this could be done better -RELEASE ?= 0 -OPTFLAGS != [ "$(RELEASE)" != "0" ] \ - && echo "-O3 -flto" \ - || echo "-O0" +# this kicks all unrecognised targets to the client script. +# note that trying to compile individual files, e.g. +# +# make kernel.elf +# +# will not work, you would need +# +# make -f scripts/makefile kernel.elf +# +# instead +.DEFAULT: setup + $(MAKE) -f scripts/makefile $< -DEBUG ?= 1 -DEBUGFLAGS != [ "$(DEBUG)" != "0" ] \ - && echo "-DDEBUG=1" \ - || echo "-DNDEBUG=1" - -GENERIC_UBOOT ?= 0 -UBOOTFLAGS != [ "$(GENERIC_UBOOT)" != "0" ] \ - && echo "-DGENERIC_UBOOT=1" - -ASSERT ?= 1 -ASSERTFLAGS != [ "$(ASSERT)" != "0" ] \ - && echo "-DASSERT=1" - -DEPFLAGS = -MT $@ -MMD -MP -MF $@.d -LINTFLAGS = -fsyntax-only -PREPROCESS = -E - -LLVM ?= 0 -LDFLAGS != [ "$(LLVM)" = "0" ] \ - && echo -static-libgcc -lgcc - -BUILD = build -ARCH_KERN_BUILD = $(BUILD)/kernel/arch/$(ARCH) -ARCH_INIT_BUILD = $(BUILD)/init/arch/$(ARCH) -ARCH_SOURCE = arch/$(ARCH) - -all: kmi.bin -# bmake requires us to run make depend to genereate deps.mk beforehand, -# so create an empty rule that lets the rest of the script do its job -depend: +.PHONY: +setup: + @echo -n > deps.mk + @./scripts/gen-deps -p KERNEL -c COMPILE_KERNEL -b kernel "${KERNEL_SOURCES}" + @./scripts/gen-deps -p INIT -c COMPILE_INIT -b init "${INIT_SOURCES}" # default values, overwrite if/when needed ARCH ?= riscv64 -CROSS_COMPILE ?= $(ARCH)-unknown-elf- - -OBJCOPY != [ "$(LLVM)" != "0" ] \ - && echo llvm-objcopy \ - || echo $(CROSS_COMPILE)objcopy - -COMPILER != [ "$(LLVM)" != "0" ] \ - && echo clang --target="$(CROSS_COMPILE)" \ - || echo $(CROSS_COMPILE)gcc - +ARCH_SOURCE = arch/$(ARCH) -KERNEL_SOURCES != echo common/*.c common/uapi/*.c lib/*.c # might consider renaming common, currently it refers to stuff common # to all arches but clearly there are bits that are common to init and kernel +KERNEL_SOURCES != echo common/*.c common/uapi/*.c lib/*.c INIT_SOURCES != echo lib/fdt*.c common/fdt.c common/string.c + CLEANUP := build deps.mk kernel.* init.* kmi.bin CLEANUP_CMD := -OBFLAGS := -ffreestanding -nostdlib -static -fno-pie -std=c17 -g -WARNFLAGS := -Wall -Wextra -Wvla -ARCH_CFLAGS := -D$(ARCH) - include arch/$(ARCH)/source.mk -COMPILE_FLAGS := $(CFLAGS) $(WARNFLAGS) $(OPTFLAGS) $(OBFLAGS) $(ASSERTFLAGS) \ - $(DEBUGFLAGS) $(UBOOTFLAGS) $(ARCH_CFLAGS) - -LINK_FLAGS := $(LDFLAGS) $(ARCH_LDFLAGS) - -INCLUDE_FLAGS := -I include -include config.h -include arch/$(ARCH)/config.h - -# This makes sure .bss is loaded into the binary -OBJCOPY_FLAGS ?= -Obinary -R .garbage \ - --set-section-flags .bss=alloc,load,contents - -COMPILE = $(COMPILER) \ - $(COMPILE_FLAGS) $(DEPFLAGS) $(INCLUDE_FLAGS) - -LINT = $(COMPILER) \ - $(COMPILE_FLAGS) $(LINTFLAGS) $(INCLUDE_FLAGS) - -GENELF = $(COMPILER) \ - $(COMPILE_FLAGS) $(INCLUDE_FLAGS) - -GENLINK = $(COMPILER) $(COMPILE_FLAGS) $(PREPROCESS) $(DEPFLAGS) $(INCLUDE_FLAGS) -STRIPLINK = sed -n '/^[^\#]/p' -KERN_SIZE = wc -c kernel.bin | awk '{print $$1}' -KERN_INFO = sed "s/<KERNEL_SIZE>/$$($(KERN_SIZE))/" - -KERNEL_LINK := arch/$(ARCH)/conf/kernel-link -INIT_LINK := arch/$(ARCH)/conf/init-link - -UBSAN ?= 0 -KERN_FLAGS != [ "$(UBSAN)" != "0" ] \ - && echo -fsanitize=undefined - -INIT_FLAGS := -fpic - -KERNEL_OBJECTS != ./scripts/gen-deps --kernel --compile "$(KERNEL_SOURCES)" -INIT_OBJECTS != ./scripts/gen-deps --init --compile "$(INIT_SOURCES)" -KERNEL_LD != ./scripts/gen-deps --kernel --link "$(KERNEL_LINK).S" -INIT_LD != ./scripts/gen-deps --init --link "$(INIT_LINK).S" - --include deps.mk - -$(INIT_LD): kernel.bin - -init.elf: $(INIT_OBJECTS) $(INIT_LD) - $(GENELF) $(INIT_FLAGS) -T $(INIT_LD) $(INIT_OBJECTS) -o init.elf $(LINK_FLAGS) - -kernel.elf: $(KERNEL_OBJECTS) $(KERNEL_LD) - $(GENELF) $(KERNEL_FLAGS) -T $(KERNEL_LD) $(KERNEL_OBJECTS) -o kernel.elf $(LINK_FLAGS) - -init.bin: init.elf - $(OBJCOPY) $(OBJCOPY_FLAGS) init.elf init.bin - -kernel.bin: kernel.elf - $(OBJCOPY) $(OBJCOPY_FLAGS) kernel.elf kernel.bin - -kmi.bin: init.bin kernel.bin - cat init.bin kernel.bin > kmi.bin - -.PHONY: -lint: $(INIT_OBJECTS:.o=.o.l) $(KERNEL_OBJECTS:.o=.o.l) - .PHONY: format format: find arch lib common include -iname '*.[ch]' |\ - xargs -n 10 -P 0 uncrustify -c uncrustify.conf --no-backup -F - + xargs uncrustify -c uncrustify.conf --no-backup -F - .PHONY: license license: find arch lib common include -iname '*.[ch]' |\ - xargs -n 10 -P 0 ./scripts/license + xargs ./scripts/license .PHONY: docs docs: @@ -140,12 +51,11 @@ docs: xargs ./scripts/warn-undocumented doxygen docs/doxygen.conf -# bmake didn't seem to have the -f flag on by default -RM ?= rm -f +RM = rm .PHONY: clean clean: - $(RM) -r $(CLEANUP) + $(RM) -rf $(CLEANUP) .PHONY: clean_run clean_run: @@ -153,7 +63,7 @@ clean_run: .PHONY: clean_docs clean_docs: - $(RM) -r docs/output + $(RM) -rf docs/output .PHONY: clean_all clean_all: clean clean_run clean_docs |