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https://gitee.com/open-loongarch/linux-5.10.git
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116 lines
3.4 KiB
Makefile
116 lines
3.4 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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#
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# Author: Huacai Chen <chenhuacai@loongson.cn>
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# Copyright (C) 2020 Loongson Technology Corporation Limited
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OBJECT_FILES_NON_STANDARD := y
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include $(srctree)/arch/loongarch/Kbuild.platforms
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# set the default size of the mallocing area for decompressing
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BOOT_HEAP_SIZE := 0x400000
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ifdef CONFIG_KASAN
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KASAN_SANITIZE := n
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endif
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# Disable Function Tracer
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KBUILD_CFLAGS := $(filter-out $(CC_FLAGS_FTRACE), $(KBUILD_CFLAGS))
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KBUILD_CFLAGS := $(filter-out -fstack-protector, $(KBUILD_CFLAGS))
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KBUILD_CFLAGS += -fpic
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KBUILD_CFLAGS := $(KBUILD_CFLAGS) -D__KERNEL__ \
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-DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) \
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-D"VMLINUX_LOAD_ADDRESS_ULL=$(VMLINUX_LOAD_ADDRESS)ull" \
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-D"KERNEL_ENTRY=$(VMLINUX_ENTRY_ADDRESS)ull" \
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KBUILD_AFLAGS := $(KBUILD_AFLAGS) -D__ASSEMBLY__ \
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-DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) \
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-DKERNEL_ENTRY=$(VMLINUX_ENTRY_ADDRESS)
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# decompressor objects (linked with vmlinuz)
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vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/string.o
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ifdef CONFIG_DEBUG_ZBOOT
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vmlinuzobjs-$(CONFIG_DEBUG_ZBOOT) += $(obj)/dbg.o
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vmlinuzobjs-$(CONFIG_DEBUG_ZBOOT) += $(obj)/uart-16550.o
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endif
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vmlinuzobjs-$(CONFIG_KERNEL_XZ) += $(obj)/ashldi3.o
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extra-y += ashldi3.c
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$(obj)/ashldi3.c: $(obj)/%.c: $(srctree)/lib/%.c FORCE
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$(call if_changed,shipped)
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targets := $(notdir $(vmlinuzobjs-y))
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targets += vmlinux.bin
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OBJCOPYFLAGS_vmlinux.bin := $(OBJCOPYFLAGS) -O binary -R .comment -S
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$(obj)/vmlinux.bin: vmlinux FORCE
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$(call if_changed,objcopy)
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tool_$(CONFIG_KERNEL_GZIP) = gzip
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tool_$(CONFIG_KERNEL_BZIP2) = bzip2
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tool_$(CONFIG_KERNEL_LZ4) = lz4
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tool_$(CONFIG_KERNEL_LZMA) = lzma
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tool_$(CONFIG_KERNEL_LZO) = lzo
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tool_$(CONFIG_KERNEL_XZ) = xzkern
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tool_$(CONFIG_KERNEL_ZSTD) = zstd22
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targets += vmlinux.bin.z
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$(obj)/vmlinux.bin.z: $(obj)/vmlinux.bin FORCE
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$(call if_changed,$(tool_y))
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targets += piggy.o dummy.o
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OBJCOPYFLAGS_piggy.o := --add-section=.image=$(obj)/vmlinux.bin.z \
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--set-section-flags=.image=contents,alloc,load,readonly,data
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$(obj)/piggy.o: $(obj)/dummy.o $(obj)/vmlinux.bin.z FORCE
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$(call if_changed,objcopy)
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HOSTCFLAGS_calc_vmlinuz_load_addr.o += $(LINUXINCLUDE)
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# Calculate the load address of the compressed kernel image
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hostprogs := calc_vmlinuz_load_addr
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ifneq ($(zload-y),)
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VMLINUZ_LOAD_ADDRESS := $(zload-y)
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else
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VMLINUZ_LOAD_ADDRESS = $(shell $(obj)/calc_vmlinuz_load_addr \
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$(obj)/vmlinux.bin $(VMLINUX_LOAD_ADDRESS))
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endif
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UIMAGE_LOADADDR = $(VMLINUZ_LOAD_ADDRESS)
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vmlinuzobjs-y += $(obj)/piggy.o
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quiet_cmd_zld = LD $@
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cmd_zld = $(LD) $(KBUILD_LDFLAGS) -Ttext $(VMLINUZ_LOAD_ADDRESS) -T $< $(vmlinuzobjs-y) -o $@
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quiet_cmd_strip = STRIP $@
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cmd_strip = $(STRIP) -s $@
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vmlinuz: $(src)/ld.script $(vmlinuzobjs-y) $(obj)/calc_vmlinuz_load_addr
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$(call cmd,zld)
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$(call cmd,strip)
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efiobjs-y := $(obj)/efi-header.o $(obj)/efi-entry.o $(obj)/decompress.o $(obj)/piggy.o \
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$(obj)/string.o $(objtree)/drivers/firmware/efi/libstub/lib.a
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efiobjs-$(CONFIG_DEBUG_ZBOOT) += $(obj)/dbg.o
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efiobjs-$(CONFIG_DEBUG_ZBOOT) += $(obj)/uart-16550.o
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targets += $(notdir $(efiobjs-y))
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quiet_cmd_efild = LD $@
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cmd_efild = $(LD) $(KBUILD_LDFLAGS) -T $< $(efiobjs-y) -o $@
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quiet_cmd_eficopy = OBJCOPY $@
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cmd_eficopy = $(OBJCOPY) $(OBJCOPYFLAGS) -O binary -R .comment -S $@ $@
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vmlinuz.efi: $(src)/ld.script $(efiobjs-y)
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$(call cmd,efild)
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$(call cmd,eficopy)
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clean-files += $(objtree)/vmlinuz
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clean-files += $(objtree)/vmlinuz.bin
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clean-files += $(objtree)/vmlinuz.efi
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