11da177e4SLinus Torvalds# 21da177e4SLinus Torvalds# linux/arch/arm/boot/compressed/Makefile 31da177e4SLinus Torvalds# 41da177e4SLinus Torvalds# create a compressed vmlinuz image from the original vmlinux 51da177e4SLinus Torvalds# 61da177e4SLinus Torvalds 7f45b1149SSimon HormanOBJS = 8f45b1149SSimon Horman 9f45b1149SSimon Horman# Ensure that mmcif loader code appears early in the image 10f45b1149SSimon Horman# to minimise that number of bocks that have to be read in 11f45b1149SSimon Horman# order to load it. 12f45b1149SSimon Hormanifeq ($(CONFIG_ZBOOT_ROM_MMCIF),y) 13f45b1149SSimon Hormanifeq ($(CONFIG_ARCH_SH7372),y) 14f45b1149SSimon HormanOBJS += mmcif-sh7372.o 15f45b1149SSimon Hormanendif 16f45b1149SSimon Hormanendif 17f45b1149SSimon Horman 18e69edc79SEric MiaoAFLAGS_head.o += -DTEXT_OFFSET=$(TEXT_OFFSET) 191da177e4SLinus TorvaldsHEAD = head.o 20f45b1149SSimon HormanOBJS += misc.o decompress.o 214486b863SRussell KingFONTC = $(srctree)/drivers/video/console/font_acorn_8x8.c 221da177e4SLinus Torvalds 231da177e4SLinus Torvalds# 241da177e4SLinus Torvalds# Architecture dependencies 251da177e4SLinus Torvalds# 261da177e4SLinus Torvaldsifeq ($(CONFIG_ARCH_ACORN),y) 274486b863SRussell KingOBJS += ll_char_wr.o font.o 281da177e4SLinus Torvaldsendif 291da177e4SLinus Torvalds 301da177e4SLinus Torvaldsifeq ($(CONFIG_ARCH_SHARK),y) 311da177e4SLinus TorvaldsOBJS += head-shark.o ofw-shark.o 321da177e4SLinus Torvaldsendif 331da177e4SLinus Torvalds 341da177e4SLinus Torvaldsifeq ($(CONFIG_ARCH_P720T),y) 351da177e4SLinus Torvalds# Borrow this code from SA1100 361da177e4SLinus TorvaldsOBJS += head-sa1100.o 371da177e4SLinus Torvaldsendif 381da177e4SLinus Torvalds 391da177e4SLinus Torvaldsifeq ($(CONFIG_ARCH_SA1100),y) 401da177e4SLinus TorvaldsOBJS += head-sa1100.o 411da177e4SLinus Torvaldsendif 421da177e4SLinus Torvalds 4321f47fbcSAlexey Charkovifeq ($(CONFIG_ARCH_VT8500),y) 4421f47fbcSAlexey CharkovOBJS += head-vt8500.o 4521f47fbcSAlexey Charkovendif 4621f47fbcSAlexey Charkov 471da177e4SLinus Torvaldsifeq ($(CONFIG_CPU_XSCALE),y) 481da177e4SLinus TorvaldsOBJS += head-xscale.o 491da177e4SLinus Torvaldsendif 501da177e4SLinus Torvalds 519c3fca2eSEric Miaoifeq ($(CONFIG_PXA_SHARPSL_DETECT_MACH_ID),y) 521da177e4SLinus TorvaldsOBJS += head-sharpsl.o 531da177e4SLinus Torvaldsendif 541da177e4SLinus Torvalds 5526584853SCatalin Marinasifeq ($(CONFIG_CPU_ENDIAN_BE32),y) 56f12d0d7cSHyok S. Choiifeq ($(CONFIG_CPU_CP15),y) 571da177e4SLinus TorvaldsOBJS += big-endian.o 58f12d0d7cSHyok S. Choielse 59f12d0d7cSHyok S. Choi# The endian should be set by h/w design. 60f12d0d7cSHyok S. Choiendif 611da177e4SLinus Torvaldsendif 621da177e4SLinus Torvalds 639a4af112SKuninori Morimotoifeq ($(CONFIG_ARCH_SHMOBILE),y) 649a4af112SKuninori MorimotoOBJS += head-shmobile.o 659a4af112SKuninori Morimotoendif 669a4af112SKuninori Morimoto 671da177e4SLinus Torvalds# 681da177e4SLinus Torvalds# We now have a PIC decompressor implementation. Decompressors running 691da177e4SLinus Torvalds# from RAM should not define ZTEXTADDR. Decompressors running directly 701da177e4SLinus Torvalds# from ROM or Flash must define ZTEXTADDR (preferably via the config) 711da177e4SLinus Torvalds# FIXME: Previous assignment to ztextaddr-y is lost here. See SHARK 721da177e4SLinus Torvaldsifeq ($(CONFIG_ZBOOT_ROM),y) 731da177e4SLinus TorvaldsZTEXTADDR := $(CONFIG_ZBOOT_ROM_TEXT) 741da177e4SLinus TorvaldsZBSSADDR := $(CONFIG_ZBOOT_ROM_BSS) 751da177e4SLinus Torvaldselse 761da177e4SLinus TorvaldsZTEXTADDR := 0 773bd2cbb9SNicolas PitreZBSSADDR := ALIGN(8) 781da177e4SLinus Torvaldsendif 791da177e4SLinus Torvalds 801da177e4SLinus TorvaldsSEDFLAGS = s/TEXT_START/$(ZTEXTADDR)/;s/BSS_START/$(ZBSSADDR)/ 811da177e4SLinus Torvalds 82e7db7b42SAlbin Tonnerresuffix_$(CONFIG_KERNEL_GZIP) = gzip 83e7db7b42SAlbin Tonnerresuffix_$(CONFIG_KERNEL_LZO) = lzo 846e8699f7SAlbin Tonnerresuffix_$(CONFIG_KERNEL_LZMA) = lzma 85e7db7b42SAlbin Tonnerre 86e7db7b42SAlbin Tonnerretargets := vmlinux vmlinux.lds \ 87e7db7b42SAlbin Tonnerre piggy.$(suffix_y) piggy.$(suffix_y).o \ 88e7db7b42SAlbin Tonnerre font.o font.c head.o misc.o $(OBJS) 89014c257cSAbhishek Sagar 90f1b957d3SMagnus Damm# Make sure files are removed during clean 91f1b957d3SMagnus Dammextra-y += piggy.gzip piggy.lzo piggy.lzma lib1funcs.S 92f1b957d3SMagnus Damm 93606576ceSSteven Rostedtifeq ($(CONFIG_FUNCTION_TRACER),y) 94014c257cSAbhishek SagarORIG_CFLAGS := $(KBUILD_CFLAGS) 95014c257cSAbhishek SagarKBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS)) 96014c257cSAbhishek Sagarendif 97014c257cSAbhishek Sagar 9821f0b311Smatt mooneyccflags-y := -fpic -fno-builtin 9921f0b311Smatt mooneyasflags-y := -Wa,-march=all 1001da177e4SLinus Torvalds 1019e84ed63SRussell King# Supply ZRELADDR to the decompressor via a linker symbol. 1029e84ed63SRussell Kingifneq ($(CONFIG_AUTO_ZRELADDR),y) 103d239b1dcSNicolas PitreLDFLAGS_vmlinux += --defsym zreladdr=$(ZRELADDR) 1049e84ed63SRussell Kingendif 10526584853SCatalin Marinasifeq ($(CONFIG_CPU_ENDIAN_BE8),y) 10626584853SCatalin MarinasLDFLAGS_vmlinux += --be8 10726584853SCatalin Marinasendif 108e7db7b42SAlbin Tonnerre# ? 109e7db7b42SAlbin TonnerreLDFLAGS_vmlinux += -p 110e7db7b42SAlbin Tonnerre# Report unresolved symbol references 111e7db7b42SAlbin TonnerreLDFLAGS_vmlinux += --no-undefined 112e7db7b42SAlbin Tonnerre# Delete all temporary local symbols 113e7db7b42SAlbin TonnerreLDFLAGS_vmlinux += -X 114e7db7b42SAlbin Tonnerre# Next argument is a linker script 115e7db7b42SAlbin TonnerreLDFLAGS_vmlinux += -T 116e7db7b42SAlbin Tonnerre 117e7db7b42SAlbin Tonnerre# For __aeabi_uidivmod 118e7db7b42SAlbin Tonnerrelib1funcs = $(obj)/lib1funcs.o 119e7db7b42SAlbin Tonnerre 120e7db7b42SAlbin Tonnerre$(obj)/lib1funcs.S: $(srctree)/arch/$(SRCARCH)/lib/lib1funcs.S FORCE 121e7db7b42SAlbin Tonnerre $(call cmd,shipped) 1221da177e4SLinus Torvalds 123*8d7e4cc2SNicolas Pitre# We need to prevent any GOTOFF relocs being used with references 124*8d7e4cc2SNicolas Pitre# to symbols in the .bss section since we cannot relocate them 125*8d7e4cc2SNicolas Pitre# independently from the rest at run time. This can be achieved by 126*8d7e4cc2SNicolas Pitre# ensuring that no private .bss symbols exist, as global symbols 127*8d7e4cc2SNicolas Pitre# always have a GOT entry which is what we need. 128*8d7e4cc2SNicolas Pitre# The .data section is already discarded by the linker script so no need 129*8d7e4cc2SNicolas Pitre# to bother about it here. 130*8d7e4cc2SNicolas Pitrecheck_for_bad_syms = \ 131*8d7e4cc2SNicolas Pitrebad_syms=$$($(CROSS_COMPILE)nm $@ | sed -n 's/^.\{8\} [bc] \(.*\)/\1/p') && \ 132*8d7e4cc2SNicolas Pitre[ -z "$$bad_syms" ] || \ 133*8d7e4cc2SNicolas Pitre ( echo "following symbols must have non local/private scope:" >&2; \ 134*8d7e4cc2SNicolas Pitre echo "$$bad_syms" >&2; rm -f $@; false ) 135*8d7e4cc2SNicolas Pitre 136e7db7b42SAlbin Tonnerre$(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.$(suffix_y).o \ 137e7db7b42SAlbin Tonnerre $(addprefix $(obj)/, $(OBJS)) $(lib1funcs) FORCE 1381da177e4SLinus Torvalds $(call if_changed,ld) 139*8d7e4cc2SNicolas Pitre @$(check_for_bad_syms) 1401da177e4SLinus Torvalds 141e7db7b42SAlbin Tonnerre$(obj)/piggy.$(suffix_y): $(obj)/../Image FORCE 142e7db7b42SAlbin Tonnerre $(call if_changed,$(suffix_y)) 1431da177e4SLinus Torvalds 144e7db7b42SAlbin Tonnerre$(obj)/piggy.$(suffix_y).o: $(obj)/piggy.$(suffix_y) FORCE 1451da177e4SLinus Torvalds 1464486b863SRussell KingCFLAGS_font.o := -Dstatic= 1474486b863SRussell King 1484486b863SRussell King$(obj)/font.c: $(FONTC) 1494486b863SRussell King $(call cmd,shipped) 1501da177e4SLinus Torvalds 151d93c333dSRussell King$(obj)/vmlinux.lds: $(obj)/vmlinux.lds.in arch/arm/boot/Makefile $(KCONFIG_CONFIG) 1521da177e4SLinus Torvalds @sed "$(SEDFLAGS)" < $< > $@ 153