| # SPDX-License-Identifier: GPL-2.0 |
| # |
| # linux/arch/sh/boot/compressed/Makefile |
| # |
| # create a compressed vmlinux image from the original vmlinux |
| # |
| |
| targets := vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o piggy.o |
| |
| OBJECTS = $(obj)/head.o $(obj)/misc.o |
| |
| # |
| # IMAGE_OFFSET is the load offset of the compression loader |
| # Assign dummy values if these 2 variables are not defined, |
| # in order to suppress error message. |
| # |
| CONFIG_MEMORY_START ?= 0x00400000 |
| CONFIG_BOOT_LINK_OFFSET ?= 0x00280000 |
| IMAGE_OFFSET := $(shell printf "0x%08x" $$(($(CONFIG_MEMORY_START)+$(CONFIG_BOOT_LINK_OFFSET)))) |
| |
| LIBGCC := $(shell $(CROSS-COMPILE)$(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name) |
| LDFLAGS_vmlinux := -Ttext $(IMAGE_OFFSET) -estartup -T $(obj)/vmlinux.lds \ |
| --defsym output=$(CONFIG_MEMORY_START) |
| |
| $(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o $(LIBGCC) FORCE |
| $(call if_changed,ld) |
| |
| $(obj)/vmlinux.bin: vmlinux FORCE |
| $(call if_changed,objcopy) |
| |
| suffix-$(CONFIG_KERNEL_GZIP) := gzip |
| suffix-$(CONFIG_KERNEL_LZO) := lzo |
| |
| $(obj)/vmlinux.bin.$(suffix-y): $(obj)/vmlinux.bin FORCE |
| $(call if_changed,$(suffix-y)) |
| |
| LDFLAGS_piggy.o := -r --format binary --oformat elf32-h8300-linux -T |
| OBJCOPYFLAGS := -O binary |
| |
| $(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.$(suffix-y) FORCE |
| $(call if_changed,ld) |
| |
| CFLAGS_misc.o = -O0 |
