4 # This file is included by the global makefile so that you can add your own
5 # architecture-specific flags and dependencies. Remember to do have actions
6 # for "archclean" and "archdep" for cleaning up and making dependencies for
9 # This file is subject to the terms and conditions of the GNU General Public
10 # License. See the file "COPYING" in the main directory of this archive
13 # Copyright (C) 1994 by Linus Torvalds
15 # 19990713 Artur Skawina <skawina@geocities.com>
16 # Added '-march' and '-mpreferred-stack-boundary' support
17 # 20000913 Pavel Machek <pavel@suse.cz>
18 # Converted for x86_64 architecture
19 # 20010105 Andi Kleen, add IA32 compiler.
20 # ....and later removed it again....
22 # $Id: Makefile,v 1.31 2002/03/22 15:56:07 ak Exp $
27 LDFLAGS
:= -m elf_x86_64
28 OBJCOPYFLAGS
:= -O binary
-R .note
-R .comment
-S
30 CHECKFLAGS
+= -D__x86_64__
-m64
34 cflags-
$(CONFIG_MK8
) += $(call cc-option
,-march
=k8
)
35 cflags-
$(CONFIG_MPSC
) += $(call cc-option
,-march
=nocona
)
36 # gcc doesn't support -march=core2 yet as of gcc 4.3, but I hope it
37 # will eventually. Use -mtune=generic as fallback
38 cflags-
$(CONFIG_MCORE2
) += \
39 $(call cc-option
,-march
=core2
,$(call cc-option
,-mtune
=generic
))
40 cflags-
$(CONFIG_GENERIC_CPU
) += $(call cc-option
,-mtune
=generic
)
43 cflags-y
+= -mno-red-zone
44 cflags-y
+= -mcmodel
=kernel
46 cflags-y
+= -Wno-sign-compare
47 cflags-y
+= -fno-asynchronous-unwind-tables
48 ifneq ($(CONFIG_DEBUG_INFO
),y
)
49 # -fweb shrinks the kernel a bit, but the difference is very small
50 # it also messes up debugging, so don't use it for now.
51 #cflags-y += $(call cc-option,-fweb)
53 # -funit-at-a-time shrinks the kernel .text considerably
54 # unfortunately it makes reading oopses harder.
55 cflags-y
+= $(call cc-option
,-funit-at-a-time
)
56 # prevent gcc from generating any FP code by mistake
57 cflags-y
+= $(call cc-option
,-mno-sse
-mno-mmx
-mno-sse2
-mno-3dnow
,)
58 # this works around some issues with generating unwind tables in older gccs
59 # newer gccs do it by default
60 cflags-y
+= -maccumulate-outgoing-args
62 # do binutils support CFI?
63 cflags-y
+= $(call as-instr
,.cfi_startproc
\n.cfi_rel_offset rsp
${comma}0\n.cfi_endproc
,-DCONFIG_AS_CFI
=1,)
64 KBUILD_AFLAGS
+= $(call as-instr
,.cfi_startproc
\n.cfi_rel_offset rsp
${comma}0\n.cfi_endproc
,-DCONFIG_AS_CFI
=1,)
66 # is .cfi_signal_frame supported too?
67 cflags-y
+= $(call as-instr
,.cfi_startproc
\n.cfi_signal_frame
\n.cfi_endproc
,-DCONFIG_AS_CFI_SIGNAL_FRAME
=1,)
68 KBUILD_AFLAGS
+= $(call as-instr
,.cfi_startproc
\n.cfi_signal_frame
\n.cfi_endproc
,-DCONFIG_AS_CFI_SIGNAL_FRAME
=1,)
70 cflags-
$(CONFIG_CC_STACKPROTECTOR
) += $(shell $(CONFIG_SHELL
) $(srctree
)/scripts
/gcc-x86_64-has-stack-protector.sh
"$(CC)" -fstack-protector
)
71 cflags-
$(CONFIG_CC_STACKPROTECTOR_ALL
) += $(shell $(CONFIG_SHELL
) $(srctree
)/scripts
/gcc-x86_64-has-stack-protector.sh
"$(CC)" -fstack-protector-all
)
73 KBUILD_CFLAGS
+= $(cflags-y
)
74 CFLAGS_KERNEL
+= $(cflags-kernel-y
)
77 head-y
:= arch
/x86
/kernel
/head_64.o arch
/x86
/kernel
/head64.o arch
/x86
/kernel
/init_task_64.o
79 libs-y
+= arch
/x86
/lib
/
80 core-y
+= arch
/x86
/kernel
/ \
84 core-
$(CONFIG_IA32_EMULATION
) += arch
/x86
/ia32
/
85 drivers-
$(CONFIG_PCI
) += arch
/x86
/pci
/
86 drivers-
$(CONFIG_OPROFILE
) += arch
/x86
/oprofile
/
90 PHONY
+= bzImage bzlilo
install archmrproper \
91 fdimage fdimage144 fdimage288 isoimage archclean
93 #Default target when executing "make"
96 BOOTIMAGE
:= arch
/x86
/boot
/bzImage
97 KBUILD_IMAGE
:= $(BOOTIMAGE
)
100 $(Q
)mkdir
-p
$(objtree
)/arch
/x86_64
/boot
101 $(Q
)ln
-fsn
$(objtree
)/arch
/x86
/boot
/bzImage
$(objtree
)/arch
/x86_64
/boot
/bzImage
102 $(Q
)$(MAKE
) $(build
)=$(boot
) $(BOOTIMAGE
)
105 $(Q
)$(MAKE
) $(build
)=$(boot
) BOOTIMAGE
=$(BOOTIMAGE
) zlilo
108 $(Q
)$(MAKE
) $(build
)=$(boot
) BOOTIMAGE
=$(BOOTIMAGE
) zdisk
110 fdimage fdimage144 fdimage288 isoimage
: vmlinux
111 $(Q
)$(MAKE
) $(build
)=$(boot
) BOOTIMAGE
=$(BOOTIMAGE
) $@
114 $(Q
)$(MAKE
) $(build
)=$(boot
) BOOTIMAGE
=$(BOOTIMAGE
) $@
117 $(Q
)rm -rf
$(objtree
)/arch
/x86_64
/boot
118 $(Q
)$(MAKE
) $(clean)=$(boot
)
121 echo
'* bzImage - Compressed kernel image (arch/$(ARCH)/boot/bzImage)'
122 echo
' install - Install kernel using'
123 echo
' (your) ~/bin/installkernel or'
124 echo
' (distribution) /sbin/installkernel or'
125 echo
' install to $$(INSTALL_PATH) and run lilo'
126 echo
' bzdisk - Create a boot floppy in /dev/fd0'
127 echo
' fdimage - Create a boot floppy image'
128 echo
' isoimage - Create a boot CD-ROM image'
131 CLEAN_FILES
+= arch
/$(ARCH
)/boot
/fdimage \
132 arch
/$(ARCH
)/boot
/image.iso \
133 arch
/$(ARCH
)/boot
/mtools.conf