xref: /openbmc/linux/arch/parisc/Makefile (revision 2fa49589) 
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# Without this, "ld -r" results in .text sections that are too big (> 0x40000)
75# for branches to reach stubs. And multiple .text sections trigger a warning
76# when creating the sysfs module information section.
77ifndef CONFIG_64BIT
78KBUILD_CFLAGS_MODULE += -ffunction-sections
79endif
80
81# select which processor to optimise for
82cflags-$(CONFIG_PA7000)		+= -march=1.1 -mschedule=7100
83cflags-$(CONFIG_PA7200)		+= -march=1.1 -mschedule=7200
84cflags-$(CONFIG_PA7100LC)	+= -march=1.1 -mschedule=7100LC
85cflags-$(CONFIG_PA7300LC)	+= -march=1.1 -mschedule=7300
86cflags-$(CONFIG_PA8X00)		+= -march=2.0 -mschedule=8000
87
88head-y			:= arch/parisc/kernel/head.o
89
90KBUILD_CFLAGS	+= $(cflags-y)
91
92kernel-y			:= mm/ kernel/ math-emu/
93
94core-y	+= $(addprefix arch/parisc/, $(kernel-y))
95libs-y	+= arch/parisc/lib/ $(LIBGCC)
96
97drivers-$(CONFIG_OPROFILE)		+= arch/parisc/oprofile/
98
99boot	:= arch/parisc/boot
100
101PALO := $(shell if (which palo 2>&1); then : ; \
102	elif [ -x /sbin/palo ]; then echo /sbin/palo; \
103	fi)
104
105PALOCONF := $(shell if [ -f $(src)/palo.conf ]; then echo $(src)/palo.conf; \
106	else echo $(obj)/palo.conf; \
107	fi)
108
109palo lifimage: vmlinuz
110	@if test ! -x "$(PALO)"; then \
111		echo 'ERROR: Please install palo first (apt-get install palo)';\
112		echo 'or build it from source and install it somewhere in your $$PATH';\
113		false; \
114	fi
115	@if test ! -f "$(PALOCONF)"; then \
116		cp $(src)/arch/parisc/defpalo.conf $(obj)/palo.conf; \
117		echo 'A generic palo config file ($(obj)/palo.conf) has been created for you.'; \
118		echo 'You should check it and re-run "make palo".'; \
119		echo 'WARNING: the "lifimage" file is now placed in this directory by default!'; \
120		false; \
121	fi
122	$(PALO) -f $(PALOCONF)
123
124BOOT_TARGETS    = zImage Image palo lifimage
125INSTALL_TARGETS = zinstall install
126
127PHONY += bzImage $(BOOT_TARGETS) $(INSTALL_TARGETS)
128
129# Default kernel to build
130all: bzImage
131
132zImage: vmlinuz
133Image: vmlinux
134
135bzImage: vmlinux
136	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
137
138ifdef CONFIG_PARISC_SELF_EXTRACT
139vmlinuz: bzImage
140	$(OBJCOPY) $(boot)/bzImage $@
141else
142vmlinuz: vmlinux
143	@gzip -cf -9 $< > $@
144endif
145
146install:
147	$(CONFIG_SHELL) $(src)/arch/parisc/install.sh \
148			$(KERNELRELEASE) vmlinux System.map "$(INSTALL_PATH)"
149zinstall:
150	$(CONFIG_SHELL) $(src)/arch/parisc/install.sh \
151			$(KERNELRELEASE) vmlinuz System.map "$(INSTALL_PATH)"
152
153CLEAN_FILES	+= lifimage
154MRPROPER_FILES	+= palo.conf
155
156define archhelp
157	@echo  '* vmlinux	- Uncompressed kernel image (./vmlinux)'
158	@echo  '  vmlinuz	- Compressed kernel image (./vmlinuz)'
159	@echo  '  palo		- Bootable image (./lifimage)'
160	@echo  '  install	- Install uncompressed vmlinux kernel using'
161	@echo  '		  (your) ~/bin/$(INSTALLKERNEL) or'
162	@echo  '		  (distribution) /sbin/$(INSTALLKERNEL) or'
163	@echo  '		  copy to $$(INSTALL_PATH)'
164	@echo  '  zinstall	- Install compressed vmlinuz kernel'
165endef
166
167archheaders:
168	$(Q)$(MAKE) $(build)=arch/parisc/kernel/syscalls all
169