1 # 1 #
2 # This file is included by the global makefile 2 # This file is included by the global makefile so that you can add your own
3 # architecture-specific flags and dependencies !! 3 # architecture-specific flags and dependencies. Remember to do have actions
4 # !! 4 # for "archclean" and "archdep" for cleaning up and making dependencies for
5 # Copyright (C) 2002 - 2007 Jeff Dike (jdike@{ !! 5 # this architecture
6 # Licensed under the GPL !! 6 #
7 # !! 7 # This file is subject to the terms and conditions of the GNU General Public
>> 8 # License. See the file "COPYING" in the main directory of this archive
>> 9 # for more details.
>> 10 #
>> 11 # Copyright (C) 1994 by Linus Torvalds
>> 12 # Changes for PPC by Gary Thomas
>> 13 # Rewritten by Cort Dougan and Paul Mackerras
>> 14 #
>> 15
>> 16 # Be sure to change PAGE_OFFSET in include/asm-ppc/page.h to match
>> 17 KERNELLOAD =$(CONFIG_KERNEL_START)
>> 18
>> 19 LINKFLAGS = -T arch/ppc/vmlinux.lds -Ttext $(KERNELLOAD) -Bstatic
>> 20 CPPFLAGS := $(CPPFLAGS) -I$(TOPDIR)/arch/$(ARCH)
>> 21 AFLAGS := $(AFLAGS) -I$(TOPDIR)/arch/$(ARCH)
>> 22 CFLAGS := $(CFLAGS) -I$(TOPDIR)/arch/$(ARCH) -fsigned-char \
>> 23 -msoft-float -pipe -ffixed-r2 -Wno-uninitialized \
>> 24 -mmultiple -mstring
>> 25 HOSTCFLAGS += -I$(TOPDIR)/arch/$(ARCH)
>> 26 CPP = $(CC) -E $(CFLAGS)
8 27
9 # select defconfig based on actual architectur !! 28 ifdef CONFIG_4xx
10 ifeq ($(SUBARCH),x86) !! 29 CFLAGS := $(CFLAGS) -Wa,-m405
11 ifeq ($(shell uname -m),x86_64) <<
12 KBUILD_DEFCONFIG := x86_64_defconfig <<
13 else <<
14 KBUILD_DEFCONFIG := i386_defconfig <<
15 endif <<
16 else <<
17 KBUILD_DEFCONFIG := $(SUBARCH)_defconf <<
18 endif 30 endif
19 31
20 ARCH_DIR := arch/um !! 32 ifdef CONFIG_8xx
21 # We require bash because the vmlinux link and !! 33 CFLAGS := $(CFLAGS) -mcpu=860
22 # features. <<
23 SHELL := bash <<
24 <<
25 MODE_INCLUDE += -I$(srctree)/$(ARCH_DIR)/in <<
26 <<
27 HEADER_ARCH := $(SUBARCH) <<
28 <<
29 ifneq ($(filter $(SUBARCH),x86 x86_64 i386),) <<
30 HEADER_ARCH := x86 <<
31 endif 34 endif
32 35
33 ifdef CONFIG_64BIT !! 36 ifdef CONFIG_PPC64BRIDGE
34 KBUILD_CFLAGS += -mcmodel=large !! 37 CFLAGS := $(CFLAGS) -Wa,-mppc64bridge
35 endif 38 endif
36 39
37 HOST_DIR := arch/$(HEADER_ARCH) !! 40 ifdef CONFIG_MORE_COMPILE_OPTIONS
38 !! 41 # Use sed to remove the quotes.
39 include $(srctree)/$(ARCH_DIR)/Makefile-skas !! 42 CFLAGS += $(shell echo $(CONFIG_COMPILE_OPTIONS) | sed -e 's/"//g')
40 include $(srctree)/$(HOST_DIR)/Makefile.um !! 43 endif
41 <<
42 core-y += $(HOST_DIR)/um/ <<
43 <<
44 SHARED_HEADERS := $(ARCH_DIR)/include/shared <<
45 ARCH_INCLUDE := -I$(srctree)/$(SHARED_HEADE <<
46 ARCH_INCLUDE += -I$(srctree)/$(HOST_DIR)/um <<
47 KBUILD_CPPFLAGS += -I$(srctree)/$(HOST_DIR)/um <<
48 <<
49 # -Dvmap=kernel_vmap prevents anything from re <<
50 # named - it's a common symbol in libpcap, so <<
51 # <<
52 # Same things for in6addr_loopback and mktime <<
53 # only get link-time error, luckily. <<
54 # <<
55 # -Dlongjmp=kernel_longjmp prevents anything f <<
56 # embedded copy of longjmp, same thing for set <<
57 # <<
58 # These apply to USER_CFLAGS to. <<
59 <<
60 KBUILD_CFLAGS += $(CFLAGS) $(CFLAGS-y) -D__arc <<
61 $(ARCH_INCLUDE) $(MODE_INCLUDE) -Dvmap <<
62 -Dlongjmp=kernel_longjmp -Dsetjmp=kern <<
63 -Din6addr_loopback=kernel_in6addr_loop <<
64 -Din6addr_any=kernel_in6addr_any -Dstr <<
65 <<
66 KBUILD_RUSTFLAGS += -Crelocation-model=pie <<
67 <<
68 KBUILD_AFLAGS += $(ARCH_INCLUDE) <<
69 <<
70 USER_CFLAGS = $(patsubst $(KERNEL_DEFINES),,$( <<
71 $(ARCH_INCLUDE) $(MODE_INCLUDE <<
72 -D_FILE_OFFSET_BITS=64 -idiraf <<
73 -idirafter $(objtree)/include <<
74 <<
75 #This will adjust *FLAGS accordingly to the pl <<
76 include $(srctree)/$(ARCH_DIR)/Makefile-os-Lin <<
77 <<
78 KBUILD_CPPFLAGS += -I$(srctree)/$(HOST_DIR)/in <<
79 -I$(srctree)/$(HOST_DIR)/in <<
80 -I$(objtree)/$(HOST_DIR)/in <<
81 -I$(objtree)/$(HOST_DIR)/in <<
82 <<
83 # -Derrno=kernel_errno - This turns all kernel <<
84 # kernel_errno to separate them from the libc <<
85 # in KBUILD_CFLAGS. Otherwise, it would cause <<
86 # errnos. <<
87 # These apply to kernelspace only. <<
88 # <<
89 # strip leading and trailing whitespace to mak <<
90 # defines more robust <<
91 <<
92 KERNEL_DEFINES = $(strip -Derrno=kernel_errno <<
93 -Dmktime=kernel_mktim <<
94 KBUILD_CFLAGS += $(KERNEL_DEFINES) <<
95 <<
96 PHONY += linux <<
97 <<
98 all: linux <<
99 <<
100 linux: vmlinux <<
101 @echo ' LINK $@' <<
102 $(Q)ln -f $< $@ <<
103 44
104 define archhelp !! 45 HEAD-y := arch/ppc/kernel/head.o
105 echo '* linux - Binary kernel image !! 46 HEAD-$(CONFIG_40x) := arch/ppc/kernel/head_4xx.o
106 echo ' compatibility only, !! 47 HEAD-$(CONFIG_44x) := arch/ppc/kernel/head_44x.o
107 echo ' real kernel binary, !! 48 HEAD-$(CONFIG_8xx) := arch/ppc/kernel/head_8xx.o
108 echo ' find in the kernel !! 49 HEAD-$(CONFIG_6xx) += arch/ppc/kernel/idle_6xx.o
109 endef !! 50
>> 51 HEAD := $(HEAD-y)
>> 52
>> 53 ARCH_SUBDIRS = arch/ppc/kernel arch/ppc/platforms arch/ppc/mm arch/ppc/lib
>> 54 SUBDIRS := $(SUBDIRS) $(ARCH_SUBDIRS)
>> 55 CORE_FILES := arch/ppc/kernel/kernel.o arch/ppc/platforms/platform.o \
>> 56 arch/ppc/mm/mm.o arch/ppc/lib/lib.o $(CORE_FILES)
>> 57
>> 58 ifdef CONFIG_MATH_EMULATION
>> 59 SUBDIRS += arch/ppc/math-emu
>> 60 CORE_FILES += arch/ppc/math-emu/math-emu.o
>> 61 endif
110 62
111 archheaders: !! 63 ifdef CONFIG_XMON
112 $(Q)$(MAKE) -f $(srctree)/Makefile ARC !! 64 SUBDIRS += arch/ppc/xmon
>> 65 CORE_FILES += arch/ppc/xmon/x.o
>> 66 endif
113 67
114 archprepare: !! 68 MAKEBOOT = $(MAKE) -C arch/$(ARCH)/boot
115 $(Q)$(MAKE) $(build)=$(HOST_DIR)/um in <<
116 69
117 LINK-$(CONFIG_LD_SCRIPT_STATIC) += -static !! 70 ifdef CONFIG_8xx
118 ifdef CONFIG_LD_SCRIPT_DYN !! 71 SUBDIRS += arch/ppc/8xx_io
119 LINK-$(call gcc-min-version, 60100)$(CONFIG_CC !! 72 DRIVERS += arch/ppc/8xx_io/8xx_io.o
120 endif 73 endif
121 LINK-$(CONFIG_LD_SCRIPT_DYN_RPATH) += -Wl,-rpa <<
122 74
123 CFLAGS_NO_HARDENING := $(call cc-option, -fno- !! 75 ifdef CONFIG_CPM2
124 -fno-stack-protector $(call cc-option, !! 76 SUBDIRS += arch/ppc/cpm2_io
>> 77 DRIVERS += arch/ppc/cpm2_io/cpm2_io.o
>> 78 endif
125 79
126 # Options used by linker script !! 80 ifdef CONFIG_APUS
127 export LDS_START := $(START) !! 81 SUBDIRS += arch/ppc/amiga
128 export LDS_ELF_ARCH := $(ELF_ARCH) !! 82 CORE_FILES += arch/ppc/amiga/amiga.o
129 export LDS_ELF_FORMAT := $(ELF_FORMAT) !! 83 endif
130 84
131 # The wrappers will select whether using "mall !! 85 checks:
132 LINK_WRAPS = -Wl,--wrap,malloc -Wl,--wrap,free !! 86 @$(MAKE) -C arch/$(ARCH)/kernel checks
133 87
134 # Avoid binutils 2.39+ warnings by marking the !! 88 BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd uImage
135 # ignorning warnings for the kallsyms sections <<
136 LDFLAGS_EXECSTACK = -z noexecstack <<
137 ifeq ($(CONFIG_LD_IS_BFD),y) <<
138 LDFLAGS_EXECSTACK += $(call ld-option,--no-war <<
139 endif <<
140 89
141 LD_FLAGS_CMDLINE = $(foreach opt,$(KBUILD_LDFL !! 90 # All the instructions talk about "make bzImage".
>> 91 bzImage: zImage
142 92
143 # Used by link-vmlinux.sh which has special su !! 93 $(BOOT_TARGETS): vmlinux
144 export CFLAGS_vmlinux := $(LINK-y) $(LINK_WRAP !! 94 @$(MAKEBOOT) $@
145 95
146 # When cleaning we don't include .config, so w !! 96 %_config: arch/ppc/configs/%_defconfig
147 # TT or skas makefiles and don't clean skas_pt !! 97 rm -f .config arch/ppc/defconfig
148 CLEAN_FILES += linux x.i gmon.out !! 98 cp -f arch/ppc/configs/$(@:config=defconfig) arch/ppc/defconfig
149 MRPROPER_FILES += $(HOST_DIR)/include/generate <<
150 99
151 archclean: 100 archclean:
152 @find . \( -name '*.bb' -o -name '*.bb !! 101 rm -f arch/ppc/kernel/{mk_defs,ppc_defs.h,find_name,checks}
153 -o -name '*.gcov' \) -type f - !! 102 @$(MAKEBOOT) clean
>> 103
>> 104 archmrproper:
154 105
155 export HEADER_ARCH SUBARCH USER_CFLAGS CFLAGS_ !! 106 archdep: scripts/mkdep
>> 107 $(MAKEBOOT) fastdep
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