Makefile (4353dd3b70783ebbc83fcf12d9c0af3fbab0223b) Makefile (7ae4a78daacf240a8247cde73337dc4b26d253da)
1# SPDX-License-Identifier: GPL-2.0
2#
3# linux/arch/arm/boot/compressed/Makefile
4#
5# create a compressed vmlinuz image from the original vmlinux
6#
7
8OBJS =

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71CPPFLAGS_vmlinux.lds := -DTEXT_START="$(ZTEXTADDR)" -DBSS_START="$(ZBSSADDR)"
72
73compress-$(CONFIG_KERNEL_GZIP) = gzip
74compress-$(CONFIG_KERNEL_LZO) = lzo
75compress-$(CONFIG_KERNEL_LZMA) = lzma
76compress-$(CONFIG_KERNEL_XZ) = xzkern
77compress-$(CONFIG_KERNEL_LZ4) = lz4
78
1# SPDX-License-Identifier: GPL-2.0
2#
3# linux/arch/arm/boot/compressed/Makefile
4#
5# create a compressed vmlinuz image from the original vmlinux
6#
7
8OBJS =

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71CPPFLAGS_vmlinux.lds := -DTEXT_START="$(ZTEXTADDR)" -DBSS_START="$(ZBSSADDR)"
72
73compress-$(CONFIG_KERNEL_GZIP) = gzip
74compress-$(CONFIG_KERNEL_LZO) = lzo
75compress-$(CONFIG_KERNEL_LZMA) = lzma
76compress-$(CONFIG_KERNEL_XZ) = xzkern
77compress-$(CONFIG_KERNEL_LZ4) = lz4
78
79# Borrowed libfdt files for the ATAG compatibility mode
79libfdt_objs := fdt_rw.o fdt_ro.o fdt_wip.o fdt.o
80
80
81libfdt := fdt_rw.c fdt_ro.c fdt_wip.c fdt.c
82libfdt_hdrs := fdt.h libfdt.h libfdt_internal.h
83
84libfdt_objs := $(addsuffix .o, $(basename $(libfdt)))
85
86$(addprefix $(obj)/,$(libfdt) $(libfdt_hdrs)): $(obj)/%: $(srctree)/scripts/dtc/libfdt/%
87 $(call cmd,shipped)
88
89$(addprefix $(obj)/,$(libfdt_objs) atags_to_fdt.o): \
90 $(addprefix $(obj)/,$(libfdt_hdrs))
91
92ifeq ($(CONFIG_ARM_ATAG_DTB_COMPAT),y)
93OBJS += $(libfdt_objs) atags_to_fdt.o
94endif
95
81ifeq ($(CONFIG_ARM_ATAG_DTB_COMPAT),y)
82OBJS += $(libfdt_objs) atags_to_fdt.o
83endif
84
85# -fstack-protector-strong triggers protection checks in this code,
86# but it is being used too early to link to meaningful stack_chk logic.
87nossp-flags-$(CONFIG_CC_HAS_STACKPROTECTOR_NONE) := -fno-stack-protector
88$(foreach o, $(libfdt_objs) atags_to_fdt.o, \
89 $(eval CFLAGS_$(o) := -I $(srctree)/scripts/dtc/libfdt $(nossp-flags-y)))
90
91# These were previously generated C files. When you are building the kernel
92# with O=, make sure to remove the stale files in the output tree. Otherwise,
93# the build system wrongly compiles the stale ones.
94ifdef building_out_of_srctree
95$(shell rm -f $(addprefix $(obj)/, fdt_rw.c fdt_ro.c fdt_wip.c fdt.c))
96endif
97
96targets := vmlinux vmlinux.lds piggy_data piggy.o \
97 lib1funcs.o ashldi3.o bswapsdi2.o \
98 head.o $(OBJS)
99
98targets := vmlinux vmlinux.lds piggy_data piggy.o \
99 lib1funcs.o ashldi3.o bswapsdi2.o \
100 head.o $(OBJS)
101
100clean-files += piggy_data lib1funcs.S ashldi3.S bswapsdi2.S \
101 $(libfdt) $(libfdt_hdrs) hyp-stub.S
102clean-files += piggy_data lib1funcs.S ashldi3.S bswapsdi2.S hyp-stub.S
102
103KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
104
105ifeq ($(CONFIG_FUNCTION_TRACER),y)
106ORIG_CFLAGS := $(KBUILD_CFLAGS)
107KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS))
108endif
109
103
104KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
105
106ifeq ($(CONFIG_FUNCTION_TRACER),y)
107ORIG_CFLAGS := $(KBUILD_CFLAGS)
108KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS))
109endif
110
110# -fstack-protector-strong triggers protection checks in this code,
111# but it is being used too early to link to meaningful stack_chk logic.
112nossp-flags-$(CONFIG_CC_HAS_STACKPROTECTOR_NONE) := -fno-stack-protector
113CFLAGS_atags_to_fdt.o := $(nossp-flags-y)
114CFLAGS_fdt.o := $(nossp-flags-y)
115CFLAGS_fdt_ro.o := $(nossp-flags-y)
116CFLAGS_fdt_rw.o := $(nossp-flags-y)
117CFLAGS_fdt_wip.o := $(nossp-flags-y)
118
119ccflags-y := -fpic $(call cc-option,-mno-single-pic-base,) -fno-builtin \
120 -I$(obj) $(DISABLE_ARM_SSP_PER_TASK_PLUGIN)
121asflags-y := -DZIMAGE
122
123# Supply kernel BSS size to the decompressor via a linker symbol.
124KBSS_SZ = $(shell echo $$(($$($(NM) $(obj)/../../../../vmlinux | \
125 sed -n -e 's/^\([^ ]*\) [AB] __bss_start$$/-0x\1/p' \
126 -e 's/^\([^ ]*\) [AB] __bss_stop$$/+0x\1/p') )) )

--- 76 unchanged lines hidden --- 		111ccflags-y := -fpic $(call cc-option,-mno-single-pic-base,) -fno-builtin \
112 -I$(obj) $(DISABLE_ARM_SSP_PER_TASK_PLUGIN)
113asflags-y := -DZIMAGE
114
115# Supply kernel BSS size to the decompressor via a linker symbol.
116KBSS_SZ = $(shell echo $$(($$($(NM) $(obj)/../../../../vmlinux | \
117 sed -n -e 's/^\([^ ]*\) [AB] __bss_start$$/-0x\1/p' \
118 -e 's/^\([^ ]*\) [AB] __bss_stop$$/+0x\1/p') )) )

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