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 9e69edc79SEric MiaoAFLAGS_head.o += -DTEXT_OFFSET=$(TEXT_OFFSET) 101da177e4SLinus TorvaldsHEAD = head.o 11f45b1149SSimon HormanOBJS += misc.o decompress.o 123b4af9bcSShawn Guoifeq ($(CONFIG_DEBUG_UNCOMPRESS),y) 133b4af9bcSShawn GuoOBJS += debug.o 143b4af9bcSShawn Guoendif 15ee89bd6bSGeert UytterhoevenFONTC = $(srctree)/lib/fonts/font_acorn_8x8.c 161da177e4SLinus Torvalds 17df4879faSNicolas Pitre# string library code (-Os is enforced to keep it much smaller) 18df4879faSNicolas PitreOBJS += string.o 19df4879faSNicolas PitreCFLAGS_string.o := -Os 20df4879faSNicolas Pitre 21424e5994SDave Martinifeq ($(CONFIG_ARM_VIRT_EXT),y) 22424e5994SDave MartinOBJS += hyp-stub.o 23424e5994SDave Martinendif 24424e5994SDave Martin 2575c34906SVincent SandersGCOV_PROFILE := n 2675c34906SVincent Sanders 271da177e4SLinus Torvalds# 281da177e4SLinus Torvalds# Architecture dependencies 291da177e4SLinus Torvalds# 301da177e4SLinus Torvaldsifeq ($(CONFIG_ARCH_ACORN),y) 314486b863SRussell KingOBJS += ll_char_wr.o font.o 321da177e4SLinus Torvaldsendif 331da177e4SLinus Torvalds 341da177e4SLinus Torvaldsifeq ($(CONFIG_ARCH_SA1100),y) 351da177e4SLinus TorvaldsOBJS += head-sa1100.o 361da177e4SLinus Torvaldsendif 371da177e4SLinus Torvalds 381da177e4SLinus Torvaldsifeq ($(CONFIG_CPU_XSCALE),y) 391da177e4SLinus TorvaldsOBJS += head-xscale.o 401da177e4SLinus Torvaldsendif 411da177e4SLinus Torvalds 429c3fca2eSEric Miaoifeq ($(CONFIG_PXA_SHARPSL_DETECT_MACH_ID),y) 431da177e4SLinus TorvaldsOBJS += head-sharpsl.o 441da177e4SLinus Torvaldsendif 451da177e4SLinus Torvalds 4626584853SCatalin Marinasifeq ($(CONFIG_CPU_ENDIAN_BE32),y) 47f12d0d7cSHyok S. Choiifeq ($(CONFIG_CPU_CP15),y) 481da177e4SLinus TorvaldsOBJS += big-endian.o 49f12d0d7cSHyok S. Choielse 50f12d0d7cSHyok S. Choi# The endian should be set by h/w design. 51f12d0d7cSHyok S. Choiendif 521da177e4SLinus Torvaldsendif 531da177e4SLinus Torvalds 54bf98c1eaSLaurent Pinchartifeq ($(CONFIG_ARCH_SHMOBILE_LEGACY),y) 559a4af112SKuninori MorimotoOBJS += head-shmobile.o 569a4af112SKuninori Morimotoendif 579a4af112SKuninori Morimoto 581da177e4SLinus Torvalds# 591da177e4SLinus Torvalds# We now have a PIC decompressor implementation. Decompressors running 601da177e4SLinus Torvalds# from RAM should not define ZTEXTADDR. Decompressors running directly 611da177e4SLinus Torvalds# from ROM or Flash must define ZTEXTADDR (preferably via the config) 621da177e4SLinus Torvalds# FIXME: Previous assignment to ztextaddr-y is lost here. See SHARK 631da177e4SLinus Torvaldsifeq ($(CONFIG_ZBOOT_ROM),y) 641da177e4SLinus TorvaldsZTEXTADDR := $(CONFIG_ZBOOT_ROM_TEXT) 651da177e4SLinus TorvaldsZBSSADDR := $(CONFIG_ZBOOT_ROM_BSS) 661da177e4SLinus Torvaldselse 671da177e4SLinus TorvaldsZTEXTADDR := 0 683bd2cbb9SNicolas PitreZBSSADDR := ALIGN(8) 691da177e4SLinus Torvaldsendif 701da177e4SLinus Torvalds 71c79bf928SRussell KingCPPFLAGS_vmlinux.lds := -DTEXT_START="$(ZTEXTADDR)" -DBSS_START="$(ZBSSADDR)" 721da177e4SLinus Torvalds 73e7db7b42SAlbin Tonnerresuffix_$(CONFIG_KERNEL_GZIP) = gzip 74e7db7b42SAlbin Tonnerresuffix_$(CONFIG_KERNEL_LZO) = lzo 756e8699f7SAlbin Tonnerresuffix_$(CONFIG_KERNEL_LZMA) = lzma 76a7f464f3SImre Kalozsuffix_$(CONFIG_KERNEL_XZ) = xzkern 77f9b493acSKyungsik Leesuffix_$(CONFIG_KERNEL_LZ4) = lz4 78e7db7b42SAlbin Tonnerre 79b90b9a38SNicolas Pitre# Borrowed libfdt files for the ATAG compatibility mode 80b90b9a38SNicolas Pitre 81b90b9a38SNicolas Pitrelibfdt := fdt_rw.c fdt_ro.c fdt_wip.c fdt.c 82b90b9a38SNicolas Pitrelibfdt_hdrs := fdt.h libfdt.h libfdt_internal.h 83b90b9a38SNicolas Pitre 84b90b9a38SNicolas Pitrelibfdt_objs := $(addsuffix .o, $(basename $(libfdt))) 85b90b9a38SNicolas Pitre 86b90b9a38SNicolas Pitre$(addprefix $(obj)/,$(libfdt) $(libfdt_hdrs)): $(obj)/%: $(srctree)/scripts/dtc/libfdt/% 87b90b9a38SNicolas Pitre $(call cmd,shipped) 88b90b9a38SNicolas Pitre 89b90b9a38SNicolas Pitre$(addprefix $(obj)/,$(libfdt_objs) atags_to_fdt.o): \ 90b90b9a38SNicolas Pitre $(addprefix $(obj)/,$(libfdt_hdrs)) 91b90b9a38SNicolas Pitre 92b90b9a38SNicolas Pitreifeq ($(CONFIG_ARM_ATAG_DTB_COMPAT),y) 93b90b9a38SNicolas PitreOBJS += $(libfdt_objs) atags_to_fdt.o 94b90b9a38SNicolas Pitreendif 95b90b9a38SNicolas Pitre 96e7db7b42SAlbin Tonnerretargets := vmlinux vmlinux.lds \ 97e7db7b42SAlbin Tonnerre piggy.$(suffix_y) piggy.$(suffix_y).o \ 98017f161aSKim Phillips lib1funcs.o lib1funcs.S ashldi3.o ashldi3.S bswapsdi2.o \ 99017f161aSKim Phillips bswapsdi2.S font.o font.c head.o misc.o $(OBJS) 100014c257cSAbhishek Sagar 101f1b957d3SMagnus Damm# Make sure files are removed during clean 102f9b493acSKyungsik Leeextra-y += piggy.gzip piggy.lzo piggy.lzma piggy.xzkern piggy.lz4 \ 103017f161aSKim Phillips lib1funcs.S ashldi3.S bswapsdi2.S $(libfdt) $(libfdt_hdrs) \ 104c79bf928SRussell King hyp-stub.S 105f1b957d3SMagnus Damm 106*8c36a757SArnd BergmannKBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING 107*8c36a757SArnd Bergmann 108606576ceSSteven Rostedtifeq ($(CONFIG_FUNCTION_TRACER),y) 109014c257cSAbhishek SagarORIG_CFLAGS := $(KBUILD_CFLAGS) 110014c257cSAbhishek SagarKBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS)) 111014c257cSAbhishek Sagarendif 112014c257cSAbhishek Sagar 113b8083f86SJonathan Austinccflags-y := -fpic -mno-single-pic-base -fno-builtin -I$(obj) 114da94a829SArnd Bergmannasflags-y := -DZIMAGE 1151da177e4SLinus Torvalds 1165ffb04f6SNicolas Pitre# Supply kernel BSS size to the decompressor via a linker symbol. 1171ec332a3SJanusz KrzysztofikKBSS_SZ = $(shell $(CROSS_COMPILE)size $(obj)/../../../../vmlinux | \ 1181ec332a3SJanusz Krzysztofik awk 'END{print $$3}') 1195ffb04f6SNicolas PitreLDFLAGS_vmlinux = --defsym _kernel_bss_size=$(KBSS_SZ) 1209e84ed63SRussell King# Supply ZRELADDR to the decompressor via a linker symbol. 1219e84ed63SRussell Kingifneq ($(CONFIG_AUTO_ZRELADDR),y) 122d239b1dcSNicolas PitreLDFLAGS_vmlinux += --defsym zreladdr=$(ZRELADDR) 1239e84ed63SRussell Kingendif 12426584853SCatalin Marinasifeq ($(CONFIG_CPU_ENDIAN_BE8),y) 12526584853SCatalin MarinasLDFLAGS_vmlinux += --be8 12626584853SCatalin Marinasendif 127e7db7b42SAlbin Tonnerre# ? 128e7db7b42SAlbin TonnerreLDFLAGS_vmlinux += -p 129e7db7b42SAlbin Tonnerre# Report unresolved symbol references 130e7db7b42SAlbin TonnerreLDFLAGS_vmlinux += --no-undefined 131e7db7b42SAlbin Tonnerre# Delete all temporary local symbols 132e7db7b42SAlbin TonnerreLDFLAGS_vmlinux += -X 133e7db7b42SAlbin Tonnerre# Next argument is a linker script 134e7db7b42SAlbin TonnerreLDFLAGS_vmlinux += -T 135e7db7b42SAlbin Tonnerre 136e7db7b42SAlbin Tonnerre# For __aeabi_uidivmod 137e7db7b42SAlbin Tonnerrelib1funcs = $(obj)/lib1funcs.o 138e7db7b42SAlbin Tonnerre 13963d15148SNicolas Pitre$(obj)/lib1funcs.S: $(srctree)/arch/$(SRCARCH)/lib/lib1funcs.S 140e7db7b42SAlbin Tonnerre $(call cmd,shipped) 1411da177e4SLinus Torvalds 142a7f464f3SImre Kaloz# For __aeabi_llsl 143a7f464f3SImre Kalozashldi3 = $(obj)/ashldi3.o 144a7f464f3SImre Kaloz 145a7f464f3SImre Kaloz$(obj)/ashldi3.S: $(srctree)/arch/$(SRCARCH)/lib/ashldi3.S 146a7f464f3SImre Kaloz $(call cmd,shipped) 147a7f464f3SImre Kaloz 148017f161aSKim Phillips# For __bswapsi2, __bswapdi2 149017f161aSKim Phillipsbswapsdi2 = $(obj)/bswapsdi2.o 150017f161aSKim Phillips 151017f161aSKim Phillips$(obj)/bswapsdi2.S: $(srctree)/arch/$(SRCARCH)/lib/bswapsdi2.S 152017f161aSKim Phillips $(call cmd,shipped) 153017f161aSKim Phillips 1548d7e4cc2SNicolas Pitre# We need to prevent any GOTOFF relocs being used with references 1558d7e4cc2SNicolas Pitre# to symbols in the .bss section since we cannot relocate them 1568d7e4cc2SNicolas Pitre# independently from the rest at run time. This can be achieved by 1578d7e4cc2SNicolas Pitre# ensuring that no private .bss symbols exist, as global symbols 1588d7e4cc2SNicolas Pitre# always have a GOT entry which is what we need. 1598d7e4cc2SNicolas Pitre# The .data section is already discarded by the linker script so no need 1608d7e4cc2SNicolas Pitre# to bother about it here. 1618d7e4cc2SNicolas Pitrecheck_for_bad_syms = \ 1628d7e4cc2SNicolas Pitrebad_syms=$$($(CROSS_COMPILE)nm $@ | sed -n 's/^.\{8\} [bc] \(.*\)/\1/p') && \ 1638d7e4cc2SNicolas Pitre[ -z "$$bad_syms" ] || \ 1648d7e4cc2SNicolas Pitre ( echo "following symbols must have non local/private scope:" >&2; \ 1658d7e4cc2SNicolas Pitre echo "$$bad_syms" >&2; rm -f $@; false ) 1668d7e4cc2SNicolas Pitre 16760aac932SSascha Hauercheck_for_multiple_zreladdr = \ 1684bdad983SRabin Vincentif [ $(words $(ZRELADDR)) -gt 1 -a "$(CONFIG_AUTO_ZRELADDR)" = "" ]; then \ 16960aac932SSascha Hauer echo 'multiple zreladdrs: $(ZRELADDR)'; \ 17060aac932SSascha Hauer echo 'This needs CONFIG_AUTO_ZRELADDR to be set'; \ 17160aac932SSascha Hauer false; \ 17260aac932SSascha Hauerfi 17360aac932SSascha Hauer 174e7db7b42SAlbin Tonnerre$(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.$(suffix_y).o \ 175017f161aSKim Phillips $(addprefix $(obj)/, $(OBJS)) $(lib1funcs) $(ashldi3) \ 176017f161aSKim Phillips $(bswapsdi2) FORCE 17760aac932SSascha Hauer @$(check_for_multiple_zreladdr) 1781da177e4SLinus Torvalds $(call if_changed,ld) 1798d7e4cc2SNicolas Pitre @$(check_for_bad_syms) 1801da177e4SLinus Torvalds 181e7db7b42SAlbin Tonnerre$(obj)/piggy.$(suffix_y): $(obj)/../Image FORCE 182e7db7b42SAlbin Tonnerre $(call if_changed,$(suffix_y)) 1831da177e4SLinus Torvalds 184e7db7b42SAlbin Tonnerre$(obj)/piggy.$(suffix_y).o: $(obj)/piggy.$(suffix_y) FORCE 1851da177e4SLinus Torvalds 1864486b863SRussell KingCFLAGS_font.o := -Dstatic= 1874486b863SRussell King 1884486b863SRussell King$(obj)/font.c: $(FONTC) 1894486b863SRussell King $(call cmd,shipped) 1901da177e4SLinus Torvalds 191424e5994SDave Martin$(obj)/hyp-stub.S: $(srctree)/arch/$(SRCARCH)/kernel/hyp-stub.S 192424e5994SDave Martin $(call cmd,shipped) 193