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| 6 |
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| 7 |
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| 8 | OBJS =
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| 9 |
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| 10 | HEAD = head.o
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| 11 | OBJS += misc.o decompress.o
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| 12 | ifeq ($(CONFIG_DEBUG_UNCOMPRESS),y)
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| 13 | OBJS += debug.o
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| 14 | AFLAGS_head.o += -DDEBUG
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| 15 | endif
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| 16 |
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| 17 |
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| 18 | OBJS += string.o
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| 19 | CFLAGS_string.o := -Os
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| 20 |
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| 21 | ifeq ($(CONFIG_ARM_VIRT_EXT),y)
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| 22 | OBJS += hyp-stub.o
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| 23 | endif
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| 24 |
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| 25 |
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| 26 |
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| 27 |
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| 28 | ifeq ($(CONFIG_ARCH_ACORN),y)
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| 29 | OBJS += ll_char_wr.o font.o
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| 30 | endif
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| 31 |
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| 32 | ifeq ($(CONFIG_ARCH_SA1100),y)
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| 33 | OBJS += head-sa1100.o
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| 34 | endif
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| 35 |
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| 36 | ifeq ($(CONFIG_CPU_XSCALE),y)
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| 37 | OBJS += head-xscale.o
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| 38 | endif
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| 39 |
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| 40 | ifeq ($(CONFIG_PXA_SHARPSL_DETECT_MACH_ID),y)
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| 41 | OBJS += head-sharpsl.o
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| 42 | endif
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| 43 |
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| 44 | ifeq ($(CONFIG_CPU_ENDIAN_BE32),y)
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| 45 | ifeq ($(CONFIG_CPU_CP15),y)
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| 46 | OBJS += big-endian.o
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| 47 | else
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| 48 |
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| 49 | endif
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| 50 | endif
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| 51 |
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| 52 |
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| 53 |
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| 54 |
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| 55 |
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| 56 |
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| 57 | ifeq ($(CONFIG_ZBOOT_ROM),y)
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| 58 | ZTEXTADDR := $(CONFIG_ZBOOT_ROM_TEXT)
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| 59 | ZBSSADDR := $(CONFIG_ZBOOT_ROM_BSS)
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| 60 | else
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| 61 | ZTEXTADDR := 0
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| 62 | ZBSSADDR := ALIGN(8)
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| 63 | endif
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| 64 |
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| 65 | MALLOC_SIZE := 65536
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| 66 |
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| 67 | AFLAGS_head.o += -DTEXT_OFFSET=$(TEXT_OFFSET) -DMALLOC_SIZE=$(MALLOC_SIZE)
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| 68 | CPPFLAGS_vmlinux.lds := -DTEXT_START="$(ZTEXTADDR)" -DBSS_START="$(ZBSSADDR)"
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| 69 | CPPFLAGS_vmlinux.lds += -DTEXT_OFFSET="$(TEXT_OFFSET)"
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| 70 | CPPFLAGS_vmlinux.lds += -DMALLOC_SIZE="$(MALLOC_SIZE)"
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| 71 |
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| 72 | compress-$(CONFIG_KERNEL_GZIP) = gzip
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| 73 | compress-$(CONFIG_KERNEL_LZO) = lzo_with_size
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| 74 | compress-$(CONFIG_KERNEL_LZMA) = lzma_with_size
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| 75 | compress-$(CONFIG_KERNEL_XZ) = xzkern_with_size
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| 76 | compress-$(CONFIG_KERNEL_LZ4) = lz4_with_size
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| 77 |
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| 78 | libfdt_objs := fdt_rw.o fdt_ro.o fdt_wip.o fdt.o
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| 79 |
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| 80 | ifeq ($(CONFIG_ARM_ATAG_DTB_COMPAT),y)
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| 81 | CFLAGS_REMOVE_atags_to_fdt.o += -Wframe-larger-than=${CONFIG_FRAME_WARN}
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| 82 | CFLAGS_atags_to_fdt.o += -Wframe-larger-than=1280
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| 83 | OBJS += $(libfdt_objs) atags_to_fdt.o
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| 84 | endif
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| 85 | ifeq ($(CONFIG_USE_OF),y)
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| 86 | OBJS += $(libfdt_objs) fdt_check_mem_start.o
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| 87 | endif
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| 88 |
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| 89 | OBJS += lib1funcs.o ashldi3.o bswapsdi2.o
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| 90 |
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| 91 | targets := vmlinux vmlinux.lds piggy_data piggy.o \
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| 92 | head.o $(OBJS)
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| 93 |
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| 94 | KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
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| 95 |
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| 96 | ccflags-y := -fpic $(call cc-option,-mno-single-pic-base,) -fno-builtin \
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| 97 | -I$(srctree)/scripts/dtc/libfdt -fno-stack-protector \
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| 98 | $(DISABLE_KSTACK_ERASE) \
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| 99 | -I$(obj)
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| 100 | ccflags-remove-$(CONFIG_FUNCTION_TRACER) += -pg
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| 101 | asflags-y := -DZIMAGE
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| 102 |
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| 103 |
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| 104 | KBSS_SZ = $(shell echo $$(($$($(NM) vmlinux | \
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| 105 | sed -n -e 's/^\([^ ]*\) [ABD] __bss_start$$/-0x\1/p' \
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| 106 | -e 's/^\([^ ]*\) [ABD] __bss_stop$$/+0x\1/p') )) )
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| 107 | LDFLAGS_vmlinux = --defsym _kernel_bss_size=$(KBSS_SZ)
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| 108 | # Supply ZRELADDR to the decompressor via a linker symbol.
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| 109 | ifneq ($(CONFIG_AUTO_ZRELADDR),y)
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| 110 | LDFLAGS_vmlinux += --defsym zreladdr=$(ZRELADDR)
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| 111 | endif
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| 112 | ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
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| 113 | LDFLAGS_vmlinux += --be8
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| 114 | endif
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| 115 | # Report unresolved symbol references
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| 116 | LDFLAGS_vmlinux += --no-undefined
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| 117 | # Delete all temporary local symbols
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| 118 | LDFLAGS_vmlinux += -X
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| 119 | # Report orphan sections
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| 120 | ifdef CONFIG_LD_ORPHAN_WARN
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| 121 | LDFLAGS_vmlinux += --orphan-handling=$(CONFIG_LD_ORPHAN_WARN_LEVEL)
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| 122 | endif
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| 123 | # Next argument is a linker script
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| 124 | LDFLAGS_vmlinux += -T
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| 125 |
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| 126 | # We need to prevent any GOTOFF relocs being used with references
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| 127 | # to symbols in the .bss section since we cannot relocate them
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| 128 | # independently from the rest at run time. This can be achieved by
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| 129 | # ensuring that no private .bss symbols exist, as global symbols
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| 130 | # always have a GOT entry which is what we need.
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| 131 | # The .data section is already discarded by the linker script so no need
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| 132 | # to bother about it here.
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| 133 | check_for_bad_syms = \
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| 134 | bad_syms=$$($(NM) $@ | sed -n 's/^.\{8\} [bc] \(.*\)/\1/p') && \
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| 135 | [ -z "$$bad_syms" ] || \
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| 136 | ( echo "following symbols must have non local/private scope:" >&2; \
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| 137 | echo "$$bad_syms" >&2; false )
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| 138 |
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| 139 | check_for_multiple_zreladdr = \
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| 140 | if [ $(words $(ZRELADDR)) -gt 1 -a "$(CONFIG_AUTO_ZRELADDR)" = "" ]; then \
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| 141 | echo 'multiple zreladdrs: $(ZRELADDR)'; \
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| 142 | echo 'This needs CONFIG_AUTO_ZRELADDR to be set'; \
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| 143 | false; \
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| 144 | fi
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| 145 |
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| 146 | efi-obj-$(CONFIG_EFI_STUB) := $(objtree)/drivers/firmware/efi/libstub/lib.a
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| 147 |
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| 148 | $(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.o \
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| 149 | $(addprefix $(obj)/, $(OBJS)) \
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| 150 | $(efi-obj-y) FORCE
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| 151 | @$(check_for_multiple_zreladdr)
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| 152 | $(call if_changed,ld)
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| 153 | @$(check_for_bad_syms)
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| 154 |
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| 155 | $(obj)/piggy_data: $(obj)/../Image FORCE
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| 156 | $(call if_changed,$(compress-y))
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| 157 |
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| 158 | $(obj)/piggy.o: $(obj)/piggy_data
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| 159 |
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| 160 | CFLAGS_font.o := -DBOOTLOADER
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