d503ac531a
Commita0f97e06a4("kbuild: enable 'make CFLAGS=...' to add additional options to CC") renamed CFLAGS to KBUILD_CFLAGS. Commit222d394d30("kbuild: enable 'make AFLAGS=...' to add additional options to AS") renamed AFLAGS to KBUILD_AFLAGS. Commit06c5040cdb("kbuild: enable 'make CPPFLAGS=...' to add additional options to CPP") renamed CPPFLAGS to KBUILD_CPPFLAGS. For some reason, LDFLAGS was not renamed. Using a well-known variable like LDFLAGS may result in accidental override of the variable. Kbuild generally uses KBUILD_ prefixed variables for the internally appended options, so here is one more conversion to sanitize the naming convention. I did not touch Makefiles under tools/ since the tools build system is a different world. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Reviewed-by: Palmer Dabbelt <palmer@sifive.com>
144 lines
4.1 KiB
Makefile
144 lines
4.1 KiB
Makefile
#
|
|
# This file is subject to the terms and conditions of the GNU General Public
|
|
# License.
|
|
#
|
|
# Adapted for MIPS Pete Popov, Dan Malek
|
|
#
|
|
# Copyright (C) 1994 by Linus Torvalds
|
|
# Adapted for PowerPC by Gary Thomas
|
|
# modified by Cort (cort@cs.nmt.edu)
|
|
#
|
|
# Copyright (C) 2009 Lemote Inc. & DSLab, Lanzhou University
|
|
# Author: Wu Zhangjin <wuzhangjin@gmail.com>
|
|
#
|
|
|
|
include $(srctree)/arch/mips/Kbuild.platforms
|
|
|
|
# set the default size of the mallocing area for decompressing
|
|
BOOT_HEAP_SIZE := 0x400000
|
|
|
|
# Disable Function Tracer
|
|
KBUILD_CFLAGS := $(filter-out -pg, $(KBUILD_CFLAGS))
|
|
|
|
KBUILD_CFLAGS := $(filter-out -fstack-protector, $(KBUILD_CFLAGS))
|
|
|
|
KBUILD_CFLAGS := $(KBUILD_CFLAGS) -D__KERNEL__ \
|
|
-DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) -D"VMLINUX_LOAD_ADDRESS_ULL=$(VMLINUX_LOAD_ADDRESS)ull"
|
|
|
|
KBUILD_AFLAGS := $(KBUILD_AFLAGS) -D__ASSEMBLY__ \
|
|
-DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) \
|
|
-DKERNEL_ENTRY=$(VMLINUX_ENTRY_ADDRESS)
|
|
|
|
# decompressor objects (linked with vmlinuz)
|
|
vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/string.o
|
|
|
|
ifdef CONFIG_DEBUG_ZBOOT
|
|
vmlinuzobjs-$(CONFIG_DEBUG_ZBOOT) += $(obj)/dbg.o
|
|
vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16550) += $(obj)/uart-16550.o
|
|
vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART_PROM) += $(obj)/uart-prom.o
|
|
vmlinuzobjs-$(CONFIG_MIPS_ALCHEMY) += $(obj)/uart-alchemy.o
|
|
vmlinuzobjs-$(CONFIG_ATH79) += $(obj)/uart-ath79.o
|
|
endif
|
|
|
|
extra-y += uart-ath79.c
|
|
$(obj)/uart-ath79.c: $(srctree)/arch/mips/ath79/early_printk.c
|
|
$(call cmd,shipped)
|
|
|
|
vmlinuzobjs-$(CONFIG_KERNEL_XZ) += $(obj)/ashldi3.o $(obj)/bswapsi.o
|
|
|
|
extra-y += ashldi3.c
|
|
$(obj)/ashldi3.c: $(obj)/%.c: $(srctree)/lib/%.c FORCE
|
|
$(call if_changed,shipped)
|
|
|
|
extra-y += bswapsi.c
|
|
$(obj)/bswapsi.c: $(obj)/%.c: $(srctree)/arch/mips/lib/%.c FORCE
|
|
$(call if_changed,shipped)
|
|
|
|
targets := $(notdir $(vmlinuzobjs-y))
|
|
|
|
targets += vmlinux.bin
|
|
OBJCOPYFLAGS_vmlinux.bin := $(OBJCOPYFLAGS) -O binary -R .comment -S
|
|
$(obj)/vmlinux.bin: $(KBUILD_IMAGE) FORCE
|
|
$(call if_changed,objcopy)
|
|
|
|
tool_$(CONFIG_KERNEL_GZIP) = gzip
|
|
tool_$(CONFIG_KERNEL_BZIP2) = bzip2
|
|
tool_$(CONFIG_KERNEL_LZ4) = lz4
|
|
tool_$(CONFIG_KERNEL_LZMA) = lzma
|
|
tool_$(CONFIG_KERNEL_LZO) = lzo
|
|
tool_$(CONFIG_KERNEL_XZ) = xzkern
|
|
|
|
targets += vmlinux.bin.z
|
|
$(obj)/vmlinux.bin.z: $(obj)/vmlinux.bin FORCE
|
|
$(call if_changed,$(tool_y))
|
|
|
|
targets += piggy.o dummy.o
|
|
OBJCOPYFLAGS_piggy.o := --add-section=.image=$(obj)/vmlinux.bin.z \
|
|
--set-section-flags=.image=contents,alloc,load,readonly,data
|
|
$(obj)/piggy.o: $(obj)/dummy.o $(obj)/vmlinux.bin.z FORCE
|
|
$(call if_changed,objcopy)
|
|
|
|
# Calculate the load address of the compressed kernel image
|
|
hostprogs-y := calc_vmlinuz_load_addr
|
|
|
|
ifneq ($(zload-y),)
|
|
VMLINUZ_LOAD_ADDRESS := $(zload-y)
|
|
else
|
|
VMLINUZ_LOAD_ADDRESS = $(shell $(obj)/calc_vmlinuz_load_addr \
|
|
$(obj)/vmlinux.bin $(VMLINUX_LOAD_ADDRESS))
|
|
endif
|
|
UIMAGE_LOADADDR = $(VMLINUZ_LOAD_ADDRESS)
|
|
|
|
vmlinuzobjs-y += $(obj)/piggy.o
|
|
|
|
quiet_cmd_zld = LD $@
|
|
cmd_zld = $(LD) $(KBUILD_LDFLAGS) -Ttext $(VMLINUZ_LOAD_ADDRESS) -T $< $(vmlinuzobjs-y) -o $@
|
|
quiet_cmd_strip = STRIP $@
|
|
cmd_strip = $(STRIP) -s $@
|
|
vmlinuz: $(src)/ld.script $(vmlinuzobjs-y) $(obj)/calc_vmlinuz_load_addr
|
|
$(call cmd,zld)
|
|
$(call cmd,strip)
|
|
|
|
#
|
|
# Some DECstations need all possible sections of an ECOFF executable
|
|
#
|
|
ifdef CONFIG_MACH_DECSTATION
|
|
e2eflag := -a
|
|
endif
|
|
|
|
# elf2ecoff can only handle 32bit image
|
|
hostprogs-y += ../elf2ecoff
|
|
|
|
ifdef CONFIG_32BIT
|
|
VMLINUZ = vmlinuz
|
|
else
|
|
VMLINUZ = vmlinuz.32
|
|
endif
|
|
|
|
quiet_cmd_32 = OBJCOPY $@
|
|
cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@
|
|
vmlinuz.32: vmlinuz
|
|
$(call cmd,32)
|
|
|
|
quiet_cmd_ecoff = ECOFF $@
|
|
cmd_ecoff = $< $(VMLINUZ) $@ $(e2eflag)
|
|
vmlinuz.ecoff: $(obj)/../elf2ecoff $(VMLINUZ)
|
|
$(call cmd,ecoff)
|
|
|
|
OBJCOPYFLAGS_vmlinuz.bin := $(OBJCOPYFLAGS) -O binary
|
|
vmlinuz.bin: vmlinuz
|
|
$(call cmd,objcopy)
|
|
|
|
OBJCOPYFLAGS_vmlinuz.srec := $(OBJCOPYFLAGS) -S -O srec
|
|
vmlinuz.srec: vmlinuz
|
|
$(call cmd,objcopy)
|
|
|
|
uzImage.bin: vmlinuz.bin FORCE
|
|
$(call if_changed,uimage,none)
|
|
|
|
clean-files += $(objtree)/vmlinuz
|
|
clean-files += $(objtree)/vmlinuz.32
|
|
clean-files += $(objtree)/vmlinuz.ecoff
|
|
clean-files += $(objtree)/vmlinuz.bin
|
|
clean-files += $(objtree)/vmlinuz.srec
|