diff options
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 49 |
1 files changed, 34 insertions, 15 deletions
@@ -1,21 +1,31 @@ DO != echo -n > deps.mk # this could be done better -DEBUGFLAGS != [ $(RELEASE) ] \ - && echo "-flto -O2 -DNDEBUG" \ - || echo "-O0 -DDEBUG" +RELEASE ?= 0 +OPTFLAGS != [ "$(RELEASE)" != "0" ] \ + && echo "-O3 -flto" \ + || echo "-O0" -UBOOTFLAGS != [ $(GENERIC_UBOOT) ] \ +DEBUG ?= 1 +DEBUGFLAGS != [ "$(DEBUG)" != "0" ] \ + && echo "-DDEBUG=1" \ + || echo "-DNDEBUG=1" + +GENERIC_UBOOT ?= 0 +UBOOTFLAGS != [ "$(GENERIC_UBOOT)" != "0" ] \ && echo "-DGENERIC_UBOOT=1" -CFLAGS = -ffreestanding -nostdlib -static -fno-pie -std=c17 \ - -Wall -Wextra -Wvla -D$(ARCH) -g +ASSERT ?= 1 +ASSERTFLAGS != [ "$(ASSERT)" != "0" ] \ + && echo "-DASSERT=1" DEPFLAGS = -MT $@ -MMD -MP -MF $@.d LINTFLAGS = -fsyntax-only PREPROCESS = -E -LDFLAGS != [ $(LLVM) ] \ - || echo -static-libgcc -lgcc + +LLVM ?= 0 +LDFLAGS != [ "$(LLVM)" = "0" ] \ + && echo -static-libgcc -lgcc BUILD = build ARCH_KERN_BUILD = $(BUILD)/kernel/arch/$(ARCH) @@ -31,11 +41,11 @@ depend: ARCH ?= riscv64 CROSS_COMPILE ?= $(ARCH)-unknown-elf- -OBJCOPY != [ $(LLVM) ] \ +OBJCOPY != [ "$(LLVM)" != "0" ] \ && echo llvm-objcopy \ || echo $(CROSS_COMPILE)objcopy -COMPILER != [ $(LLVM) ] \ +COMPILER != [ "$(LLVM)" != "0" ] \ && echo clang --target="$(CROSS_COMPILE)" \ || echo $(CROSS_COMPILE)gcc @@ -47,9 +57,15 @@ INIT_SOURCES != echo lib/fdt*.c common/fdt.c common/string.c CLEANUP := build deps.mk kernel.* init.* kmi.bin CLEANUP_CMD := +OBFLAGS := -ffreestanding -nostdlib -static -fno-pie -std=c17 -g +WARNFLAGS := -Wall -Wextra -Wvla +ARCH_CFLAGS := -D$(ARCH) + include arch/$(ARCH)/source.mk -COMPILE_FLAGS := $(CFLAGS) $(ARCH_CFLAGS) $(UBOOTFLAGS) +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 @@ -58,13 +74,13 @@ INCLUDE_FLAGS := -I include -include config.h -include arch/$(ARCH)/config.h OBJCOPY_FLAGS ?= -Obinary -R .garbage \ --set-section-flags .bss=alloc,load,contents -COMPILE = $(COMPILER) $(DEBUGFLAGS)\ +COMPILE = $(COMPILER) \ $(COMPILE_FLAGS) $(DEPFLAGS) $(INCLUDE_FLAGS) -LINT = $(COMPILER) $(DEBUGFLAGS)\ +LINT = $(COMPILER) \ $(COMPILE_FLAGS) $(LINTFLAGS) $(INCLUDE_FLAGS) -GENELF = $(COMPILER) $(DEBUGFLAGS)\ +GENELF = $(COMPILER) \ $(COMPILE_FLAGS) $(INCLUDE_FLAGS) GENLINK = $(COMPILER) $(COMPILE_FLAGS) $(PREPROCESS) $(DEPFLAGS) $(INCLUDE_FLAGS) @@ -75,7 +91,10 @@ KERN_INFO = sed "s/<KERNEL_SIZE>/$$($(KERN_SIZE))/" KERNEL_LINK := arch/$(ARCH)/conf/kernel-link INIT_LINK := arch/$(ARCH)/conf/init-link -KERN_FLAGS != [ $(UBSAN) ] && echo -fsanitize=undefined || echo +UBSAN ?= 0 +KERN_FLAGS != [ "$(UBSAN)" != "0" ] \ + && echo -fsanitize=undefined + INIT_FLAGS := -fpic KERNEL_OBJECTS != ./scripts/gen-deps --kernel --compile "$(KERNEL_SOURCES)" |