xref: /openbmc/linux/arch/parisc/Makefile (revision df388556)
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_DEFCONFIG := default_defconfig
21
22NM		= sh $(srctree)/arch/parisc/nm
23CHECKFLAGS	+= -D__hppa__=1
24
25MACHINE		:= $(shell uname -m)
26ifeq ($(MACHINE),parisc*)
27NATIVE		:= 1
28endif
29
30ifdef CONFIG_64BIT
31UTS_MACHINE	:= parisc64
32CHECKFLAGS	+= -D__LP64__=1 -m64
33WIDTH		:= 64
34CROSS_COMPILE	:= hppa64-linux-gnu-
35else # 32-bit
36WIDTH		:=
37endif
38
39# attempt to help out folks who are cross-compiling
40ifeq ($(NATIVE),1)
41CROSS_COMPILE	:= hppa$(WIDTH)-linux-
42endif
43
44OBJCOPY_FLAGS =-O binary -R .note -R .comment -S
45
46cflags-y	:= -pipe
47
48# These flags should be implied by an hppa-linux configuration, but they
49# are not in gcc 3.2.
50cflags-y	+= -mno-space-regs -mfast-indirect-calls
51
52# Currently we save and restore fpregs on all kernel entry/interruption paths.
53# If that gets optimized, we might need to disable the use of fpregs in the
54# kernel.
55cflags-y	+= -mdisable-fpregs
56
57# Without this, "ld -r" results in .text sections that are too big
58# (> 0x40000) for branches to reach stubs.
59cflags-y	+= -ffunction-sections
60
61# select which processor to optimise for
62cflags-$(CONFIG_PA7100)		+= -march=1.1 -mschedule=7100
63cflags-$(CONFIG_PA7200)		+= -march=1.1 -mschedule=7200
64cflags-$(CONFIG_PA7100LC)	+= -march=1.1 -mschedule=7100LC
65cflags-$(CONFIG_PA7300LC)	+= -march=1.1 -mschedule=7300
66cflags-$(CONFIG_PA8X00)		+= -march=2.0 -mschedule=8000
67
68head-y			:= arch/parisc/kernel/head.o
69
70KBUILD_CFLAGS	+= $(cflags-y)
71
72kernel-y			:= mm/ kernel/ math-emu/ kernel/init_task.o
73kernel-$(CONFIG_HPUX)		+= hpux/
74
75core-y	+= $(addprefix arch/parisc/, $(kernel-y))
76libs-y	+= arch/parisc/lib/ `$(CC) -print-libgcc-file-name`
77
78drivers-$(CONFIG_OPROFILE)		+= arch/parisc/oprofile/
79
80PALO := $(shell if (which palo 2>&1); then : ; \
81	elif [ -x /sbin/palo ]; then echo /sbin/palo; \
82	fi)
83
84PALOCONF := $(shell if [ -f $(src)/palo.conf ]; then echo $(src)/palo.conf; \
85	else echo $(obj)/palo.conf; \
86	fi)
87
88palo: vmlinux
89	@if test ! -x "$(PALO)"; then \
90		echo 'ERROR: Please install palo first (apt-get install palo)';\
91		echo 'or build it from source and install it somewhere in your $$PATH';\
92		false; \
93	fi
94	@if test ! -f "$(PALOCONF)"; then \
95		cp $(src)/arch/parisc/defpalo.conf $(obj)/palo.conf; \
96		echo 'A generic palo config file ($(obj)/palo.conf) has been created for you.'; \
97		echo 'You should check it and re-run "make palo".'; \
98		echo 'WARNING: the "lifimage" file is now placed in this directory by default!'; \
99		false; \
100	fi
101	$(PALO) -f $(PALOCONF)
102
103# Shorthands for known targets not supported by parisc, use vmlinux as default
104Image zImage bzImage: vmlinux
105
106kernel_install: vmlinux
107	sh $(src)/arch/parisc/install.sh \
108			$(KERNELRELEASE) $< System.map "$(INSTALL_PATH)"
109
110install: kernel_install modules_install
111
112CLEAN_FILES	+= lifimage
113MRPROPER_FILES	+= palo.conf
114
115define archhelp
116	@echo  '* vmlinux	- Uncompressed kernel image (./vmlinux)'
117	@echo  '  palo		- Bootable image (./lifimage)'
118	@echo  '  install	- Install kernel using'
119	@echo  '		  (your) ~/bin/installkernel or'
120	@echo  '		  (distribution) /sbin/installkernel or'
121	@echo  '		  copy to $$(INSTALL_PATH)'
122endef
123
124# we require gcc 3.3 or above to compile the kernel
125archprepare: checkbin
126checkbin:
127	@if test "$(call cc-version)" -lt "0303"; then \
128		echo -n "Sorry, GCC v3.3 or above is required to build " ; \
129		echo "the kernel." ; \
130		false ; \
131	fi
132