diff options
Diffstat (limited to 'arch/mips/boot/compressed/Makefile')
| -rw-r--r-- | arch/mips/boot/compressed/Makefile | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile new file mode 100644 index 000000000..1d6ebbc2a --- /dev/null +++ b/arch/mips/boot/compressed/Makefile @@ -0,0 +1,148 @@ +# +# 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) + +# Prevents link failures: __sanitizer_cov_trace_pc() is not linked in. +KCOV_INSTRUMENT := n + +# decompressor objects (linked with vmlinuz) +vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/string.o $(obj)/bswapsi.o + +ifdef CONFIG_DEBUG_ZBOOT +vmlinuzobjs-$(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) += $(obj)/ashldi3.o + +extra-y += ashldi3.c +$(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) + +HOSTCFLAGS_calc_vmlinuz_load_addr.o += $(LINUXINCLUDE) + +# Calculate the load address of the compressed kernel image +hostprogs-y := calc_vmlinuz_load_addr + +ifneq ($(zload-y),) +VMLINUZ_LOAD_ADDRESS := $(zload-y) +else +VMLINUZ_LOAD_ADDRESS = $(shell $(obj)/calc_vmlinuz_load_addr \ + $(obj)/vmlinux.bin $(LINKER_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 |