From 1b93b3c3e94be2605759735a89fc935ba5f58dcf Mon Sep 17 00:00:00 2001 From: Wu Zhangjin Date: Wed, 14 Oct 2009 18:12:16 +0800 Subject: MIPS: Add support for GZIP / BZIP2 / LZMA compressed kernel images This patch helps to generate smaller kernel images for linux-MIPS, Here is the effect when using lzma: $ ls -sh vmlinux 7.1M vmlinux $ ls -sh vmlinuz 1.5M vmlinuz Have tested the 32bit kernel on Qemu/Malta and 64bit kernel on FuLoong Mini PC. both of them work well. and also, tested by Alexander Clouter on an AR7 based Linksys WAG54Gv2, and by Manuel Lauss on an Alchemy board. This -v2 version incorporate the feedback from Ralf, and add the following changes: 1. add .ecoff, .bin, .erec format support 2. only enable it and the debug source code for the machines we tested 3. a dozen of fixups and cleanups and if you want to enable it for your board, please try to select SYS_SUPPORTS_ZBOOT for it, and if the board have an 16550 compatible uart, you can select SYS_SUPPORTS_ZBOOT_UART16550 directly. and then sending the relative patches to Ralf. Tested-by: Manuel Lauss Tested-by: Alexander Clouter Signed-off-by: Wu Zhangjin Signed-off-by: Ralf Baechle --- arch/mips/Makefile | 31 ++++++++++++++++++++++++++++--- 1 file changed, 28 insertions(+), 3 deletions(-) (limited to 'arch/mips/Makefile') diff --git a/arch/mips/Makefile b/arch/mips/Makefile index 77f5021..ba04782 100644 --- a/arch/mips/Makefile +++ b/arch/mips/Makefile @@ -69,6 +69,7 @@ endif all-$(CONFIG_BOOT_ELF32) := $(vmlinux-32) all-$(CONFIG_BOOT_ELF64) := $(vmlinux-64) +all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlinuz # # GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel @@ -331,7 +332,7 @@ load-$(CONFIG_LEMOTE_FULOONG2E) +=0xffffffff80100000 core-$(CONFIG_MIPS_MALTA) += arch/mips/mti-malta/ cflags-$(CONFIG_MIPS_MALTA) += -I$(srctree)/arch/mips/include/asm/mach-malta load-$(CONFIG_MIPS_MALTA) += 0xffffffff80100000 -all-$(CONFIG_MIPS_MALTA) := vmlinux.bin +all-$(CONFIG_MIPS_MALTA) := vmlinuz.bin # # MIPS SIM @@ -581,7 +582,7 @@ load-$(CONFIG_SNI_RM) += 0xffffffff80600000 else load-$(CONFIG_SNI_RM) += 0xffffffff80030000 endif -all-$(CONFIG_SNI_RM) := vmlinux.ecoff +all-$(CONFIG_SNI_RM) := vmlinuz.ecoff # # Common TXx9 @@ -699,9 +700,23 @@ vmlinux.64: vmlinux $(OBJCOPY) -O $(64bit-bfd) $(OBJCOPYFLAGS) $< $@ makeboot =$(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) $(1) +makezboot =$(Q)$(MAKE) $(build)=arch/mips/boot/compressed \ + VMLINUX_LOAD_ADDRESS=$(load-y) 32bit-bfd=$(32bit-bfd) $(1) all: $(all-y) +vmlinuz: vmlinux FORCE + +@$(call makezboot,$@) + +vmlinuz.bin: vmlinux + +@$(call makezboot,$@) + +vmlinuz.ecoff: vmlinux + +@$(call makezboot,$@) + +vmlinuz.srec: vmlinux + +@$(call makezboot,$@) + vmlinux.bin: $(vmlinux-32) +@$(call makeboot,$@) @@ -726,11 +741,13 @@ endif install: $(Q)install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE) + $(Q)install -D -m 755 vmlinuz $(INSTALL_PATH)/vmlinuz-$(KERNELRELEASE) $(Q)install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE) $(Q)install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE) archclean: @$(MAKE) $(clean)=arch/mips/boot + @$(MAKE) $(clean)=arch/mips/boot/compressed @$(MAKE) $(clean)=arch/mips/lasat define archhelp @@ -738,10 +755,18 @@ define archhelp echo ' vmlinux.ecoff - ECOFF boot image' echo ' vmlinux.bin - Raw binary boot image' echo ' vmlinux.srec - SREC boot image' + echo ' vmlinuz - Compressed boot(zboot) image' + echo ' vmlinuz.ecoff - ECOFF zboot image' + echo ' vmlinuz.bin - Raw binary zboot image' + echo ' vmlinuz.srec - SREC zboot image' echo echo ' These will be default as apropriate for a configured platform.' endef CLEAN_FILES += vmlinux.32 \ vmlinux.64 \ - vmlinux.ecoff + vmlinux.ecoff \ + vmlinuz \ + vmlinuz.ecoff \ + vmlinuz.bin \ + vmlinuz.srec -- cgit v1.1