Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | # |
| 2 | # linux/arch/arm/boot/compressed/Makefile |
| 3 | # |
| 4 | # create a compressed vmlinuz image from the original vmlinux |
| 5 | # |
| 6 | |
Simon Horman | f45b114 | 2011-01-11 04:01:08 +0100 | [diff] [blame] | 7 | OBJS = |
| 8 | |
Simon Horman | 090ab3f | 2011-04-26 06:29:53 +0100 | [diff] [blame] | 9 | # Ensure that MMCIF loader code appears early in the image |
Simon Horman | f45b114 | 2011-01-11 04:01:08 +0100 | [diff] [blame] | 10 | # to minimise that number of bocks that have to be read in |
| 11 | # order to load it. |
| 12 | ifeq ($(CONFIG_ZBOOT_ROM_MMCIF),y) |
Simon Horman | f45b114 | 2011-01-11 04:01:08 +0100 | [diff] [blame] | 13 | OBJS += mmcif-sh7372.o |
| 14 | endif |
Simon Horman | 090ab3f | 2011-04-26 06:29:53 +0100 | [diff] [blame] | 15 | |
| 16 | # Ensure that SDHI loader code appears early in the image |
| 17 | # to minimise that number of bocks that have to be read in |
| 18 | # order to load it. |
| 19 | ifeq ($(CONFIG_ZBOOT_ROM_SH_MOBILE_SDHI),y) |
| 20 | OBJS += sdhi-shmobile.o |
| 21 | OBJS += sdhi-sh7372.o |
Simon Horman | f45b114 | 2011-01-11 04:01:08 +0100 | [diff] [blame] | 22 | endif |
| 23 | |
Eric Miao | e69edc79 | 2010-07-05 15:56:50 +0200 | [diff] [blame] | 24 | AFLAGS_head.o += -DTEXT_OFFSET=$(TEXT_OFFSET) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 25 | HEAD = head.o |
Simon Horman | f45b114 | 2011-01-11 04:01:08 +0100 | [diff] [blame] | 26 | OBJS += misc.o decompress.o |
Russell King | 4486b86 | 2007-06-03 18:54:42 +0100 | [diff] [blame] | 27 | FONTC = $(srctree)/drivers/video/console/font_acorn_8x8.c |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | |
Nicolas Pitre | df4879f | 2011-09-13 21:42:55 -0400 | [diff] [blame] | 29 | # string library code (-Os is enforced to keep it much smaller) |
| 30 | OBJS += string.o |
| 31 | CFLAGS_string.o := -Os |
| 32 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | # |
| 34 | # Architecture dependencies |
| 35 | # |
| 36 | ifeq ($(CONFIG_ARCH_ACORN),y) |
Russell King | 4486b86 | 2007-06-03 18:54:42 +0100 | [diff] [blame] | 37 | OBJS += ll_char_wr.o font.o |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | endif |
| 39 | |
| 40 | ifeq ($(CONFIG_ARCH_SHARK),y) |
| 41 | OBJS += head-shark.o ofw-shark.o |
| 42 | endif |
| 43 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | ifeq ($(CONFIG_ARCH_P720T),y) |
| 45 | # Borrow this code from SA1100 |
| 46 | OBJS += head-sa1100.o |
| 47 | endif |
| 48 | |
| 49 | ifeq ($(CONFIG_ARCH_SA1100),y) |
| 50 | OBJS += head-sa1100.o |
| 51 | endif |
| 52 | |
Alexey Charkov | 21f47fb | 2010-12-23 13:11:21 +0100 | [diff] [blame] | 53 | ifeq ($(CONFIG_ARCH_VT8500),y) |
| 54 | OBJS += head-vt8500.o |
| 55 | endif |
| 56 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | ifeq ($(CONFIG_CPU_XSCALE),y) |
| 58 | OBJS += head-xscale.o |
| 59 | endif |
| 60 | |
Eric Miao | 9c3fca2 | 2010-06-23 09:27:32 +0800 | [diff] [blame] | 61 | ifeq ($(CONFIG_PXA_SHARPSL_DETECT_MACH_ID),y) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 62 | OBJS += head-sharpsl.o |
| 63 | endif |
| 64 | |
Catalin Marinas | 2658485 | 2009-05-30 14:00:18 +0100 | [diff] [blame] | 65 | ifeq ($(CONFIG_CPU_ENDIAN_BE32),y) |
Hyok S. Choi | f12d0d7 | 2006-09-26 17:36:37 +0900 | [diff] [blame] | 66 | ifeq ($(CONFIG_CPU_CP15),y) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | OBJS += big-endian.o |
Hyok S. Choi | f12d0d7 | 2006-09-26 17:36:37 +0900 | [diff] [blame] | 68 | else |
| 69 | # The endian should be set by h/w design. |
| 70 | endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | endif |
| 72 | |
Kuninori Morimoto | 9a4af11 | 2010-12-01 07:45:00 +0100 | [diff] [blame] | 73 | ifeq ($(CONFIG_ARCH_SHMOBILE),y) |
| 74 | OBJS += head-shmobile.o |
| 75 | endif |
| 76 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | # |
| 78 | # We now have a PIC decompressor implementation. Decompressors running |
| 79 | # from RAM should not define ZTEXTADDR. Decompressors running directly |
| 80 | # from ROM or Flash must define ZTEXTADDR (preferably via the config) |
| 81 | # FIXME: Previous assignment to ztextaddr-y is lost here. See SHARK |
| 82 | ifeq ($(CONFIG_ZBOOT_ROM),y) |
| 83 | ZTEXTADDR := $(CONFIG_ZBOOT_ROM_TEXT) |
| 84 | ZBSSADDR := $(CONFIG_ZBOOT_ROM_BSS) |
| 85 | else |
| 86 | ZTEXTADDR := 0 |
Nicolas Pitre | 3bd2cbb | 2011-04-21 21:45:08 -0400 | [diff] [blame] | 87 | ZBSSADDR := ALIGN(8) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 88 | endif |
| 89 | |
| 90 | SEDFLAGS = s/TEXT_START/$(ZTEXTADDR)/;s/BSS_START/$(ZBSSADDR)/ |
| 91 | |
Albin Tonnerre | e7db7b4 | 2010-01-08 14:42:43 -0800 | [diff] [blame] | 92 | suffix_$(CONFIG_KERNEL_GZIP) = gzip |
| 93 | suffix_$(CONFIG_KERNEL_LZO) = lzo |
Albin Tonnerre | 6e8699f | 2010-04-03 11:40:28 +0100 | [diff] [blame] | 94 | suffix_$(CONFIG_KERNEL_LZMA) = lzma |
Albin Tonnerre | e7db7b4 | 2010-01-08 14:42:43 -0800 | [diff] [blame] | 95 | |
Nicolas Pitre | b90b9a3 | 2011-09-13 22:37:07 -0400 | [diff] [blame] | 96 | # Borrowed libfdt files for the ATAG compatibility mode |
| 97 | |
| 98 | libfdt := fdt_rw.c fdt_ro.c fdt_wip.c fdt.c |
| 99 | libfdt_hdrs := fdt.h libfdt.h libfdt_internal.h |
| 100 | |
| 101 | libfdt_objs := $(addsuffix .o, $(basename $(libfdt))) |
| 102 | |
| 103 | $(addprefix $(obj)/,$(libfdt) $(libfdt_hdrs)): $(obj)/%: $(srctree)/scripts/dtc/libfdt/% |
| 104 | $(call cmd,shipped) |
| 105 | |
| 106 | $(addprefix $(obj)/,$(libfdt_objs) atags_to_fdt.o): \ |
| 107 | $(addprefix $(obj)/,$(libfdt_hdrs)) |
| 108 | |
| 109 | ifeq ($(CONFIG_ARM_ATAG_DTB_COMPAT),y) |
| 110 | OBJS += $(libfdt_objs) atags_to_fdt.o |
| 111 | endif |
| 112 | |
Albin Tonnerre | e7db7b4 | 2010-01-08 14:42:43 -0800 | [diff] [blame] | 113 | targets := vmlinux vmlinux.lds \ |
| 114 | piggy.$(suffix_y) piggy.$(suffix_y).o \ |
Nicolas Pitre | 63d1514 | 2011-09-14 00:16:21 -0400 | [diff] [blame^] | 115 | lib1funcs.o lib1funcs.S font.o font.c head.o misc.o $(OBJS) |
Abhishek Sagar | 014c257 | 2008-05-31 14:23:50 +0530 | [diff] [blame] | 116 | |
Magnus Damm | f1b957d | 2010-07-28 05:46:21 +0100 | [diff] [blame] | 117 | # Make sure files are removed during clean |
Nicolas Pitre | b90b9a3 | 2011-09-13 22:37:07 -0400 | [diff] [blame] | 118 | extra-y += piggy.gzip piggy.lzo piggy.lzma lib1funcs.S $(libfdt) $(libfdt_hdrs) |
Magnus Damm | f1b957d | 2010-07-28 05:46:21 +0100 | [diff] [blame] | 119 | |
Steven Rostedt | 606576c | 2008-10-06 19:06:12 -0400 | [diff] [blame] | 120 | ifeq ($(CONFIG_FUNCTION_TRACER),y) |
Abhishek Sagar | 014c257 | 2008-05-31 14:23:50 +0530 | [diff] [blame] | 121 | ORIG_CFLAGS := $(KBUILD_CFLAGS) |
| 122 | KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS)) |
| 123 | endif |
| 124 | |
Nicolas Pitre | b90b9a3 | 2011-09-13 22:37:07 -0400 | [diff] [blame] | 125 | ccflags-y := -fpic -fno-builtin -I$(obj) |
matt mooney | 21f0b31 | 2011-01-14 06:12:26 -0800 | [diff] [blame] | 126 | asflags-y := -Wa,-march=all |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 127 | |
Nicolas Pitre | 5ffb04f | 2011-06-12 01:07:33 -0400 | [diff] [blame] | 128 | # Supply kernel BSS size to the decompressor via a linker symbol. |
| 129 | KBSS_SZ = $(shell size $(obj)/../../../../vmlinux | awk 'END{print $$3}') |
| 130 | LDFLAGS_vmlinux = --defsym _kernel_bss_size=$(KBSS_SZ) |
Russell King | 9e84ed6 | 2010-09-09 22:39:41 +0100 | [diff] [blame] | 131 | # Supply ZRELADDR to the decompressor via a linker symbol. |
| 132 | ifneq ($(CONFIG_AUTO_ZRELADDR),y) |
Nicolas Pitre | d239b1d | 2011-02-21 04:57:38 +0100 | [diff] [blame] | 133 | LDFLAGS_vmlinux += --defsym zreladdr=$(ZRELADDR) |
Russell King | 9e84ed6 | 2010-09-09 22:39:41 +0100 | [diff] [blame] | 134 | endif |
Catalin Marinas | 2658485 | 2009-05-30 14:00:18 +0100 | [diff] [blame] | 135 | ifeq ($(CONFIG_CPU_ENDIAN_BE8),y) |
| 136 | LDFLAGS_vmlinux += --be8 |
| 137 | endif |
Albin Tonnerre | e7db7b4 | 2010-01-08 14:42:43 -0800 | [diff] [blame] | 138 | # ? |
| 139 | LDFLAGS_vmlinux += -p |
| 140 | # Report unresolved symbol references |
| 141 | LDFLAGS_vmlinux += --no-undefined |
| 142 | # Delete all temporary local symbols |
| 143 | LDFLAGS_vmlinux += -X |
| 144 | # Next argument is a linker script |
| 145 | LDFLAGS_vmlinux += -T |
| 146 | |
| 147 | # For __aeabi_uidivmod |
| 148 | lib1funcs = $(obj)/lib1funcs.o |
| 149 | |
Nicolas Pitre | 63d1514 | 2011-09-14 00:16:21 -0400 | [diff] [blame^] | 150 | $(obj)/lib1funcs.S: $(srctree)/arch/$(SRCARCH)/lib/lib1funcs.S |
Albin Tonnerre | e7db7b4 | 2010-01-08 14:42:43 -0800 | [diff] [blame] | 151 | $(call cmd,shipped) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 152 | |
Nicolas Pitre | 8d7e4cc | 2011-04-27 14:54:39 -0400 | [diff] [blame] | 153 | # We need to prevent any GOTOFF relocs being used with references |
| 154 | # to symbols in the .bss section since we cannot relocate them |
| 155 | # independently from the rest at run time. This can be achieved by |
| 156 | # ensuring that no private .bss symbols exist, as global symbols |
| 157 | # always have a GOT entry which is what we need. |
| 158 | # The .data section is already discarded by the linker script so no need |
| 159 | # to bother about it here. |
| 160 | check_for_bad_syms = \ |
| 161 | bad_syms=$$($(CROSS_COMPILE)nm $@ | sed -n 's/^.\{8\} [bc] \(.*\)/\1/p') && \ |
| 162 | [ -z "$$bad_syms" ] || \ |
| 163 | ( echo "following symbols must have non local/private scope:" >&2; \ |
| 164 | echo "$$bad_syms" >&2; rm -f $@; false ) |
| 165 | |
Albin Tonnerre | e7db7b4 | 2010-01-08 14:42:43 -0800 | [diff] [blame] | 166 | $(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.$(suffix_y).o \ |
| 167 | $(addprefix $(obj)/, $(OBJS)) $(lib1funcs) FORCE |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 168 | $(call if_changed,ld) |
Nicolas Pitre | 8d7e4cc | 2011-04-27 14:54:39 -0400 | [diff] [blame] | 169 | @$(check_for_bad_syms) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 170 | |
Albin Tonnerre | e7db7b4 | 2010-01-08 14:42:43 -0800 | [diff] [blame] | 171 | $(obj)/piggy.$(suffix_y): $(obj)/../Image FORCE |
| 172 | $(call if_changed,$(suffix_y)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 173 | |
Albin Tonnerre | e7db7b4 | 2010-01-08 14:42:43 -0800 | [diff] [blame] | 174 | $(obj)/piggy.$(suffix_y).o: $(obj)/piggy.$(suffix_y) FORCE |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 175 | |
Russell King | 4486b86 | 2007-06-03 18:54:42 +0100 | [diff] [blame] | 176 | CFLAGS_font.o := -Dstatic= |
| 177 | |
| 178 | $(obj)/font.c: $(FONTC) |
| 179 | $(call cmd,shipped) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 180 | |
Russell King | d93c333 | 2010-09-19 16:16:58 +0100 | [diff] [blame] | 181 | $(obj)/vmlinux.lds: $(obj)/vmlinux.lds.in arch/arm/boot/Makefile $(KCONFIG_CONFIG) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 182 | @sed "$(SEDFLAGS)" < $< > $@ |