diff options
Diffstat (limited to 'na/Makefile')
| -rw-r--r-- | na/Makefile | 58 |
1 files changed, 50 insertions, 8 deletions
diff --git a/na/Makefile b/na/Makefile index 100bc6d..e950b35 100644 --- a/na/Makefile +++ b/na/Makefile @@ -22,10 +22,15 @@ BUILD := build include scripts/Kconfig.mk ARCH ?= $(CONFIG_ARCH) -TARGET := $(BUILD)/kernel.elf -IMAGE := $(BUILD)/kernel.bin +VMLINUX_PRE := $(BUILD)/kernel.pre.elf +VMLINUX := $(BUILD)/kernel.elf +VMLINUX_RAW := $(BUILD)/vmlume.raw.bin +IMAGE := $(BUILD)/vmlume.bin +RELOC_BIN := $(BUILD)/reloc.bin +RELOC_OBJ := $(BUILD)/reloc.o LDS_SRC := arch/$(ARCH)/kernel/lumeos.lds.S LINKER_SCRIPT := $(BUILD)/lumeos.lds +PYTHON ?= python3 # ============================================================ # Toolchain Detection @@ -54,6 +59,16 @@ CXX := $(TOOLCHAIN_PREFIX)g++ LD := $(TOOLCHAIN_PREFIX)ld OBJCOPY := $(TOOLCHAIN_PREFIX)objcopy OBJDUMP := $(TOOLCHAIN_PREFIX)objdump +# Objcopy output formats for binary-to-ELF relocation blob +OBJCOPY_ELF_riscv := elf64-littleriscv +OBJCOPY_ELF_aarch64 := elf64-littleaarch64 +OBJCOPY_ELF_x86_64 := elf64-x86-64 +OBJCOPY_ELF := $(OBJCOPY_ELF_$(ARCH)) + +OBJCOPY_BINARCH_riscv := riscv +OBJCOPY_BINARCH_aarch64 := aarch64 +OBJCOPY_BINARCH_x86_64 := i386:x86-64 +OBJCOPY_BINARCH := $(OBJCOPY_BINARCH_$(ARCH)) # Common flags (base, before module includes) WARNINGS := -Wall -Wextra -Wno-unused-parameter @@ -97,7 +112,7 @@ CXXFLAGS := $(CFLAGS) \ ASFLAGS := $(CFLAGS) -LDFLAGS := -nostdlib -static +LDFLAGS := -nostdlib -static --emit-relocs # ============================================================ # Object File Computation @@ -130,17 +145,44 @@ $(LINKER_SCRIPT): $(LDS_SRC) include/lume/lumeos.lds.h @$(CC) -E -P -x c $(INCLUDES) $< -o $@ # Link kernel ELF -$(TARGET): $(OBJS) $(LINKER_SCRIPT) +$(VMLINUX_PRE): $(OBJS) $(LINKER_SCRIPT) @echo " LD $@" @mkdir -p $(dir $@) @$(LD) $(LDFLAGS) -T $(LINKER_SCRIPT) -o $@ $(OBJS) @$(TOOLCHAIN_PREFIX)size $@ +$(RELOC_BIN): $(VMLINUX_PRE) scripts/gen_reloc.py + @echo " RELOC $@" + @mkdir -p $(dir $@) + @$(PYTHON) scripts/gen_reloc.py --elf $< --out $@ + +$(RELOC_OBJ): $(RELOC_BIN) + @echo " OBJCOPY $@" + @$(OBJCOPY) -I binary -O $(OBJCOPY_ELF) -B $(OBJCOPY_BINARCH) \ + --rename-section .data=.lume.reloc,alloc,load,readonly,data,contents \ + $< $@ + +$(VMLINUX): $(OBJS) $(RELOC_OBJ) $(LINKER_SCRIPT) + @echo " LD $@" + @mkdir -p $(dir $@) + @$(LD) $(LDFLAGS) -T $(LINKER_SCRIPT) -o $@ $(OBJS) $(RELOC_OBJ) + @$(TOOLCHAIN_PREFIX)size $@ + # Generate flat binary for QEMU loading -$(IMAGE): $(TARGET) +$(VMLINUX_RAW): $(VMLINUX) @echo " OBJCOPY $@" @$(OBJCOPY) -O binary $< $@ +ifeq ($(CONFIG_KERNEL_COMPRESSED),y) +$(IMAGE): $(VMLINUX_RAW) $(VMLINUX) scripts/pack_image.py + @echo " PACK $@" + @$(PYTHON) scripts/pack_image.py --elf $(VMLINUX) --input $< --output $@ --compress lz4 +else +$(IMAGE): $(VMLINUX_RAW) $(VMLINUX) scripts/pack_image.py + @echo " PACK $@" + @$(PYTHON) scripts/pack_image.py --elf $(VMLINUX) --input $< --output $@ --compress none +endif + # Compile C++ sources $(BUILD)/%.o: %.cc @echo " CXX $<" @@ -199,10 +241,10 @@ debug: $(IMAGE) clean: rm -rf $(BUILD) -disasm: $(TARGET) +disasm: $(VMLINUX) @echo " OBJDUMP $<" - @$(OBJDUMP) -d -S $(TARGET) > $(TARGET).asm - @echo " Written to $(TARGET).asm" + @$(OBJDUMP) -d -S $(VMLINUX) > $(VMLINUX).asm + @echo " Written to $(VMLINUX).asm" fmt: @echo " FMT Formatting source files..." |