xref: /openbmc/linux/arch/parisc/Makefile (revision cfbb9be8) 
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 -mbig-endian
26LIBGCC		= $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
27export LIBGCC
28
29ifdef CONFIG_64BIT
30UTS_MACHINE	:= parisc64
31CHECKFLAGS	+= -D__LP64__=1 -m64
32CC_ARCHES	= hppa64
33LD_BFD		:= elf64-hppa-linux
34else # 32-bit
35CC_ARCHES	= hppa hppa2.0 hppa1.1
36LD_BFD		:= elf32-hppa-linux
37endif
38
39export LD_BFD
40
41ifneq ($(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# Without this, "ld -r" results in .text sections that are too big
69# (> 0x40000) for branches to reach stubs.
70cflags-y	+= -ffunction-sections
71
72# Use long jumps instead of long branches (needed if your linker fails to
73# link a too big vmlinux executable). Not enabled for building modules.
74ifdef CONFIG_MLONGCALLS
75KBUILD_CFLAGS_KERNEL += -mlong-calls
76endif
77
78# select which processor to optimise for
79cflags-$(CONFIG_PA7000)		+= -march=1.1 -mschedule=7100
80cflags-$(CONFIG_PA7200)		+= -march=1.1 -mschedule=7200
81cflags-$(CONFIG_PA7100LC)	+= -march=1.1 -mschedule=7100LC
82cflags-$(CONFIG_PA7300LC)	+= -march=1.1 -mschedule=7300
83cflags-$(CONFIG_PA8X00)		+= -march=2.0 -mschedule=8000
84
85head-y			:= arch/parisc/kernel/head.o
86
87KBUILD_CFLAGS	+= $(cflags-y)
88
89kernel-y			:= mm/ kernel/ math-emu/
90
91core-y	+= $(addprefix arch/parisc/, $(kernel-y))
92libs-y	+= arch/parisc/lib/ $(LIBGCC)
93
94drivers-$(CONFIG_OPROFILE)		+= arch/parisc/oprofile/
95
96boot	:= arch/parisc/boot
97
98PALO := $(shell if (which palo 2>&1); then : ; \
99	elif [ -x /sbin/palo ]; then echo /sbin/palo; \
100	fi)
101
102PALOCONF := $(shell if [ -f $(src)/palo.conf ]; then echo $(src)/palo.conf; \
103	else echo $(obj)/palo.conf; \
104	fi)
105
106palo lifimage: vmlinuz
107	@if test ! -x "$(PALO)"; then \
108		echo 'ERROR: Please install palo first (apt-get install palo)';\
109		echo 'or build it from source and install it somewhere in your $$PATH';\
110		false; \
111	fi
112	@if test ! -f "$(PALOCONF)"; then \
113		cp $(src)/arch/parisc/defpalo.conf $(obj)/palo.conf; \
114		echo 'A generic palo config file ($(obj)/palo.conf) has been created for you.'; \
115		echo 'You should check it and re-run "make palo".'; \
116		echo 'WARNING: the "lifimage" file is now placed in this directory by default!'; \
117		false; \
118	fi
119	$(PALO) -f $(PALOCONF)
120
121BOOT_TARGETS    = zImage Image palo lifimage
122INSTALL_TARGETS = zinstall install
123
124PHONY += bzImage $(BOOT_TARGETS) $(INSTALL_TARGETS)
125
126zImage: vmlinuz
127Image: vmlinux
128
129bzImage: vmlinux
130	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
131
132ifdef CONFIG_PARISC_SELF_EXTRACT
133vmlinuz: bzImage
134	$(OBJCOPY) $(boot)/bzImage $@
135else
136vmlinuz: vmlinux
137	@gzip -cf -9 $< > $@
138endif
139
140install:
141	$(CONFIG_SHELL) $(src)/arch/parisc/install.sh \
142			$(KERNELRELEASE) vmlinux System.map "$(INSTALL_PATH)"
143zinstall:
144	$(CONFIG_SHELL) $(src)/arch/parisc/install.sh \
145			$(KERNELRELEASE) vmlinuz System.map "$(INSTALL_PATH)"
146
147CLEAN_FILES	+= lifimage
148MRPROPER_FILES	+= palo.conf
149
150define archhelp
151	@echo  '* vmlinux	- Uncompressed kernel image (./vmlinux)'
152	@echo  '  vmlinuz	- Compressed kernel image (./vmlinuz)'
153	@echo  '  palo		- Bootable image (./lifimage)'
154	@echo  '  install	- Install uncompressed vmlinux kernel using'
155	@echo  '		  (your) ~/bin/$(INSTALLKERNEL) or'
156	@echo  '		  (distribution) /sbin/$(INSTALLKERNEL) or'
157	@echo  '		  copy to $$(INSTALL_PATH)'
158	@echo  '  zinstall	- Install compressed vmlinuz kernel'
159endef
160
161# we require gcc 3.3 or above to compile the kernel
162archprepare: checkbin
163checkbin:
164	@if test "$(cc-version)" -lt "0303"; then \
165		echo -n "Sorry, GCC v3.3 or above is required to build " ; \
166		echo "the kernel." ; \
167		false ; \
168	fi
169