xref: /openbmc/linux/arch/parisc/Makefile (revision ba61bb17) 
1#
2# parisc/Makefile
3#
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
7# this architecture
8#
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
11# for more details.
12#
13# Copyright (C) 1994 by Linus Torvalds
14# Portions Copyright (C) 1999 The Puffin Group
15#
16# Modified for PA-RISC Linux by Paul Lahaie, Alex deVries,
17# Mike Shaver, Helge Deller and Martin K. Petersen
18#
19
20KBUILD_IMAGE := vmlinuz
21
22KBUILD_DEFCONFIG := default_defconfig
23
24NM		= sh $(srctree)/arch/parisc/nm
25CHECKFLAGS	+= -D__hppa__=1
26LIBGCC		= $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
27export LIBGCC
28
29ifdef CONFIG_64BIT
30UTS_MACHINE	:= parisc64
31CHECKFLAGS	+= -D__LP64__=1
32CC_ARCHES	= hppa64
33LD_BFD		:= elf64-hppa-linux
34else # 32-bit
35CC_ARCHES	= hppa hppa2.0 hppa1.1
36LD_BFD		:= elf32-hppa-linux
37endif
38
39export LD_BFD
40
41ifneq ($(SUBARCH),$(UTS_MACHINE))
42	ifeq ($(CROSS_COMPILE),)
43		CC_SUFFIXES = linux linux-gnu unknown-linux-gnu
44		CROSS_COMPILE := $(call cc-cross-prefix, \
45			$(foreach a,$(CC_ARCHES), \
46			$(foreach s,$(CC_SUFFIXES),$(a)-$(s)-)))
47	endif
48endif
49
50OBJCOPY_FLAGS =-O binary -R .note -R .comment -S
51
52cflags-y	:= -pipe
53
54# These flags should be implied by an hppa-linux configuration, but they
55# are not in gcc 3.2.
56cflags-y	+= -mno-space-regs
57
58# -mfast-indirect-calls is only relevant for 32-bit kernels.
59ifndef CONFIG_64BIT
60cflags-y	+= -mfast-indirect-calls
61endif
62
63# Currently we save and restore fpregs on all kernel entry/interruption paths.
64# If that gets optimized, we might need to disable the use of fpregs in the
65# kernel.
66cflags-y	+= -mdisable-fpregs
67
68# Use long jumps instead of long branches (needed if your linker fails to
69# link a too big vmlinux executable). Not enabled for building modules.
70ifdef CONFIG_MLONGCALLS
71KBUILD_CFLAGS_KERNEL += -mlong-calls
72endif
73
74# select which processor to optimise for
75cflags-$(CONFIG_PA7000)		+= -march=1.1 -mschedule=7100
76cflags-$(CONFIG_PA7200)		+= -march=1.1 -mschedule=7200
77cflags-$(CONFIG_PA7100LC)	+= -march=1.1 -mschedule=7100LC
78cflags-$(CONFIG_PA7300LC)	+= -march=1.1 -mschedule=7300
79cflags-$(CONFIG_PA8X00)		+= -march=2.0 -mschedule=8000
80
81head-y			:= arch/parisc/kernel/head.o
82
83KBUILD_CFLAGS	+= $(cflags-y)
84
85kernel-y			:= mm/ kernel/ math-emu/
86
87core-y	+= $(addprefix arch/parisc/, $(kernel-y))
88libs-y	+= arch/parisc/lib/ $(LIBGCC)
89
90drivers-$(CONFIG_OPROFILE)		+= arch/parisc/oprofile/
91
92boot	:= arch/parisc/boot
93
94PALO := $(shell if (which palo 2>&1); then : ; \
95	elif [ -x /sbin/palo ]; then echo /sbin/palo; \
96	fi)
97
98PALOCONF := $(shell if [ -f $(src)/palo.conf ]; then echo $(src)/palo.conf; \
99	else echo $(obj)/palo.conf; \
100	fi)
101
102palo lifimage: vmlinuz
103	@if test ! -x "$(PALO)"; then \
104		echo 'ERROR: Please install palo first (apt-get install palo)';\
105		echo 'or build it from source and install it somewhere in your $$PATH';\
106		false; \
107	fi
108	@if test ! -f "$(PALOCONF)"; then \
109		cp $(src)/arch/parisc/defpalo.conf $(obj)/palo.conf; \
110		echo 'A generic palo config file ($(obj)/palo.conf) has been created for you.'; \
111		echo 'You should check it and re-run "make palo".'; \
112		echo 'WARNING: the "lifimage" file is now placed in this directory by default!'; \
113		false; \
114	fi
115	$(PALO) -f $(PALOCONF)
116
117BOOT_TARGETS    = zImage Image palo lifimage
118INSTALL_TARGETS = zinstall install
119
120PHONY += bzImage $(BOOT_TARGETS) $(INSTALL_TARGETS)
121
122# Default kernel to build
123all: bzImage
124
125zImage: vmlinuz
126Image: vmlinux
127
128bzImage: vmlinux
129	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
130
131ifdef CONFIG_PARISC_SELF_EXTRACT
132vmlinuz: bzImage
133	$(OBJCOPY) $(boot)/bzImage $@
134else
135vmlinuz: vmlinux
136	@gzip -cf -9 $< > $@
137endif
138
139install:
140	$(CONFIG_SHELL) $(src)/arch/parisc/install.sh \
141			$(KERNELRELEASE) vmlinux System.map "$(INSTALL_PATH)"
142zinstall:
143	$(CONFIG_SHELL) $(src)/arch/parisc/install.sh \
144			$(KERNELRELEASE) vmlinuz System.map "$(INSTALL_PATH)"
145
146CLEAN_FILES	+= lifimage
147MRPROPER_FILES	+= palo.conf
148
149define archhelp
150	@echo  '* vmlinux	- Uncompressed kernel image (./vmlinux)'
151	@echo  '  vmlinuz	- Compressed kernel image (./vmlinuz)'
152	@echo  '  palo		- Bootable image (./lifimage)'
153	@echo  '  install	- Install uncompressed vmlinux kernel using'
154	@echo  '		  (your) ~/bin/$(INSTALLKERNEL) or'
155	@echo  '		  (distribution) /sbin/$(INSTALLKERNEL) or'
156	@echo  '		  copy to $$(INSTALL_PATH)'
157	@echo  '  zinstall	- Install compressed vmlinuz kernel'
158endef
159
160# we require gcc 3.3 or above to compile the kernel
161archprepare: checkbin
162checkbin:
163	@if test "$(cc-version)" -lt "0303"; then \
164		echo -n "Sorry, GCC v3.3 or above is required to build " ; \
165		echo "the kernel." ; \
166		false ; \
167	fi
168