1 # SPDX-License-Identifier: GPL-2.0-only !! 1 # This file is included by the global makefile so that you can add your own
>> 2 # architecture-specific flags and dependencies.
2 # 3 #
3 # Copyright (C) 2004, 2007-2010, 2011-2012 Syn !! 4 # This file is subject to the terms and conditions of the GNU General Public
>> 5 # License. See the file "COPYING" in the main directory of this archive
>> 6 # for more details.
>> 7 #
>> 8 # Copyright (C) 1994 by Linus Torvalds
>> 9 # Changes for PPC by Gary Thomas
>> 10 # Rewritten by Cort Dougan and Paul Mackerras
4 # 11 #
5 12
6 KBUILD_DEFCONFIG := haps_hs_smp_defconfig !! 13 # This must match PAGE_OFFSET in include/asm-ppc/page.h.
7 !! 14 KERNELLOAD := $(CONFIG_KERNEL_START)
8 ifeq ($(CROSS_COMPILE),) <<
9 CROSS_COMPILE := $(call cc-cross-prefix, arc-l <<
10 endif <<
11 <<
12 cflags-y += -fno-common -pipe -fno-buil <<
13 <<
14 tune-mcpu-def-$(CONFIG_ISA_ARCOMPACT) := -mc <<
15 tune-mcpu-def-$(CONFIG_ISA_ARCV2) := -mc <<
16 <<
17 ifeq ($(CONFIG_ARC_TUNE_MCPU),) <<
18 cflags-y += $(t <<
19 else <<
20 tune-mcpu := $(C <<
21 ifneq ($(call cc-option,$(tune-mcpu)),) <<
22 cflags-y += $(t <<
23 else <<
24 # The flag provided by 'CONFIG_ARC_TUNE_MCPU' <<
25 # (probably the compiler is too old). Use ISA <<
26 $(warning ** WARNING ** CONFIG_ARC_TUNE_MCPU f <<
27 cflags-y += $(t <<
28 endif <<
29 endif <<
30 15
31 ifdef CONFIG_ARC_CURR_IN_REG !! 16 LDFLAGS_vmlinux := -Ttext $(KERNELLOAD) -Bstatic
32 # For a global register definition, make sure !! 17 CPPFLAGS += -Iarch/$(ARCH)
33 # We had a customer reported bug where some co !! 18 AFLAGS += -Iarch/$(ARCH)
34 # any kernel headers, and missing the global r !! 19 cflags-y += -Iarch/$(ARCH) -msoft-float -pipe \
35 # Can't do unconditionally because of recursiv !! 20 -ffixed-r2 -Wno-uninitialized -mmultiple -mstring
36 # due to <linux/thread_info.h> !! 21 CPP = $(CC) -E $(CFLAGS)
37 LINUXINCLUDE += -include $(srctree)/arch/a <<
38 cflags-y += -ffixed-gp <<
39 endif <<
40 22
41 cflags-y += -fs !! 23 cflags-$(CONFIG_4xx) += -Wa,-m405
>> 24 cflags-$(CONFIG_PPC64BRIDGE) += -Wa,-mppc64bridge
42 25
43 cflags-$(CONFIG_ARC_HAS_LLSC) += -ml !! 26 CFLAGS += $(cflags-y)
44 cflags-$(CONFIG_ARC_HAS_SWAPE) += -ms <<
45 27
46 ifdef CONFIG_ISA_ARCV2 <<
47 28
48 ifdef CONFIG_ARC_USE_UNALIGNED_MEM_ACCESS !! 29 head-y := arch/ppc/kernel/head.o
49 cflags-y += -mu !! 30 head-$(CONFIG_8xx) := arch/ppc/kernel/head_8xx.o
50 else !! 31 head-$(CONFIG_4xx) := arch/ppc/kernel/head_4xx.o
51 cflags-y += -mn !! 32 head-$(CONFIG_44x) := arch/ppc/kernel/head_44x.o
52 endif <<
53 33
54 ifndef CONFIG_ARC_HAS_LL64 !! 34 head-$(CONFIG_6xx) += arch/ppc/kernel/idle_6xx.o
55 cflags-y += -mn !! 35 head-$(CONFIG_POWER4) += arch/ppc/kernel/idle_power4.o
56 endif <<
57 36
58 ifndef CONFIG_ARC_HAS_DIV_REM !! 37 core-y += arch/ppc/kernel/ arch/ppc/platforms/ \
59 cflags-y += -mn !! 38 arch/ppc/mm/ arch/ppc/lib/ arch/ppc/syslib/
60 endif !! 39 core-$(CONFIG_4xx) += arch/ppc/platforms/4xx/
>> 40 core-$(CONFIG_MATH_EMULATION) += arch/ppc/math-emu/
>> 41 core-$(CONFIG_XMON) += arch/ppc/xmon/
>> 42 core-$(CONFIG_APUS) += arch/ppc/amiga/
>> 43 drivers-$(CONFIG_8xx) += arch/ppc/8xx_io/
>> 44 drivers-$(CONFIG_4xx) += arch/ppc/4xx_io/
>> 45 drivers-$(CONFIG_8260) += arch/ppc/8260_io/
>> 46 drivers-$(CONFIG_OCP) += arch/ppc/ocp/
61 47
62 endif !! 48 BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd vmlinux.sm
63 49
64 cfi := $(call as-instr,.cfi_startproc\n.cfi_en !! 50 .PHONY: $(BOOT_TARGETS)
65 cflags-$(CONFIG_ARC_DW2_UNWIND) += -fa <<
66 51
67 # small data is default for elf32 tool-chain. !! 52 all: zImage
68 # This also allows repurposing GP as scratch r <<
69 disable_small_data := y <<
70 cflags-$(disable_small_data) += -mn <<
71 53
72 cflags-$(CONFIG_CPU_BIG_ENDIAN) += -mb !! 54 AFLAGS_vmlinux.lds.o := -Upowerpc
73 ldflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB <<
74 55
75 LIBGCC = $(shell $(CC) $(cflags-y) --print-li !! 56 # All the instructions talk about "make bzImage".
>> 57 bzImage: zImage
76 58
77 # Modules with short calls might break for cal !! 59 boot := arch/$(ARCH)/boot
78 KBUILD_CFLAGS_MODULE += -mlong-calls -mno-m <<
79 60
80 # Finally dump eveything into kernel build sys !! 61 $(BOOT_TARGETS): vmlinux
81 KBUILD_CFLAGS += $(cflags-y) !! 62 $(Q)$(MAKE) $(build)=$(boot) $@
82 KBUILD_AFLAGS += $(KBUILD_CFLAGS) <<
83 KBUILD_LDFLAGS += $(ldflags-y) <<
84 63
85 # w/o this dtb won't embed into kernel binary !! 64 uImage: vmlinux
86 core-y += arch/arc/boot/dts/ !! 65 $(Q)$(MAKE) $(build)=$(boot)/images $(boot)/images/$@
87 66
88 core-y += arch/arc/pl !! 67 define archhelp
89 core-$(CONFIG_ARC_PLAT_TB10X) += arch/arc/pl !! 68 @echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/images/zImage.*)'
90 core-$(CONFIG_ARC_PLAT_AXS10X) += arch/arc/pl !! 69 @echo ' uImage - Create a bootable image for U-Boot / PPCBoot'
91 core-$(CONFIG_ARC_SOC_HSDK) += arch/arc/pl !! 70 @echo ' install - Install kernel using'
>> 71 @echo ' (your) ~/bin/installkernel or'
>> 72 @echo ' (distribution) /sbin/installkernel or'
>> 73 @echo ' install to $$(INSTALL_PATH) and run lilo'
>> 74 @echo ' *_defconfig - Select default config from arch/$(ARCH)/ppc/configs'
>> 75 endef
92 76
93 libs-y += arch/arc/lib/ $(LIBGCC) !! 77 archclean:
>> 78 $(Q)$(MAKE) $(clean)=arch/ppc/boot
94 79
95 boot := arch/arc/boot !! 80 prepare: include/asm-$(ARCH)/offsets.h checkbin
96 81
97 boot_targets := uImage.bin uImage.gz uImage.lz !! 82 arch/$(ARCH)/kernel/asm-offsets.s: include/asm include/linux/version.h \
>> 83 include/config/MARKER
98 84
99 PHONY += $(boot_targets) !! 85 include/asm-$(ARCH)/offsets.h: arch/$(ARCH)/kernel/asm-offsets.s
100 $(boot_targets): vmlinux !! 86 $(call filechk,gen-asm-offsets)
101 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$ <<
102 87
103 uimage-default-y := uIm !! 88 ifdef CONFIG_6xx
104 uimage-default-$(CONFIG_KERNEL_GZIP) := uIm !! 89 # Ensure this is binutils 2.12.1 (or 2.12.90.0.7) or later
105 uimage-default-$(CONFIG_KERNEL_LZMA) := uIm !! 90 NEW_AS := $(shell echo dssall | $(AS) -o /dev/null >/dev/null 2>&1 ; echo $$?)
>> 91 GOODVER := 2.12.1
>> 92 else
>> 93 NEW_AS := 0
>> 94 endif
106 95
107 PHONY += uImage !! 96 ifneq ($(NEW_AS),0)
108 uImage: $(uimage-default-y) !! 97 checkbin:
109 @ln -sf $< $(boot)/uImage !! 98 @echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build'
110 @$(kecho) ' Image $(boot)/uImage is r !! 99 @echo 'correctly with old versions of binutils.'
>> 100 @echo '*** Please upgrade your binutils to ${GOODVER} or newer'
>> 101 @false
>> 102 else
>> 103 checkbin:
>> 104 @true
>> 105 endif
111 106
112 CLEAN_FILES += $(boot)/uImage !! 107 CLEAN_FILES += include/asm-$(ARCH)/offsets.h \
>> 108 arch/$(ARCH)/kernel/asm-offsets.s
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