parisc: document the shadow registers
[deliverable/linux.git] / arch / parisc / Makefile
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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#
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19
20KBUILD_DEFCONFIG := default_defconfig
21
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22NM = sh $(srctree)/arch/parisc/nm
23CHECKFLAGS += -D__hppa__=1
4c01acc0 24LIBGCC = $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
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25
26ifdef CONFIG_64BIT
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27UTS_MACHINE := parisc64
28CHECKFLAGS += -D__LP64__=1 -m64
6880b015 29CC_ARCHES = hppa64
991b7d6e 30else # 32-bit
6880b015 31CC_ARCHES = hppa hppa2.0 hppa1.1
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32endif
33
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34ifneq ($(SUBARCH),$(UTS_MACHINE))
35 ifeq ($(CROSS_COMPILE),)
36 CC_SUFFIXES = linux linux-gnu unknown-linux-gnu
37 CROSS_COMPILE := $(call cc-cross-prefix, \
38 $(foreach a,$(CC_ARCHES), \
39 $(foreach s,$(CC_SUFFIXES),$(a)-$(s)-)))
40 endif
991b7d6e 41endif
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42
43OBJCOPY_FLAGS =-O binary -R .note -R .comment -S
44
45cflags-y := -pipe
46
47# These flags should be implied by an hppa-linux configuration, but they
48# are not in gcc 3.2.
49cflags-y += -mno-space-regs -mfast-indirect-calls
50
51# Currently we save and restore fpregs on all kernel entry/interruption paths.
52# If that gets optimized, we might need to disable the use of fpregs in the
53# kernel.
fa681a18 54cflags-y += -mdisable-fpregs
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55
56# Without this, "ld -r" results in .text sections that are too big
57# (> 0x40000) for branches to reach stubs.
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58ifndef CONFIG_FUNCTION_TRACER
59 cflags-y += -ffunction-sections
60endif
1da177e4 61
ec758f98 62# Use long jumps instead of long branches (needed if your linker fails to
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63# link a too big vmlinux executable). Not enabled for building modules.
64ifdef CONFIG_MLONGCALLS
65KBUILD_CFLAGS_KERNEL += -mlong-calls
66endif
ec758f98 67
1da177e4 68# select which processor to optimise for
76603902 69cflags-$(CONFIG_PA7000) += -march=1.1 -mschedule=7100
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70cflags-$(CONFIG_PA7200) += -march=1.1 -mschedule=7200
71cflags-$(CONFIG_PA7100LC) += -march=1.1 -mschedule=7100LC
72cflags-$(CONFIG_PA7300LC) += -march=1.1 -mschedule=7300
73cflags-$(CONFIG_PA8X00) += -march=2.0 -mschedule=8000
74
75head-y := arch/parisc/kernel/head.o
76
a0f97e06 77KBUILD_CFLAGS += $(cflags-y)
1da177e4 78
481f93b6 79kernel-y := mm/ kernel/ math-emu/
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80kernel-$(CONFIG_HPUX) += hpux/
81
82core-y += $(addprefix arch/parisc/, $(kernel-y))
4c01acc0 83libs-y += arch/parisc/lib/ $(LIBGCC)
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84
85drivers-$(CONFIG_OPROFILE) += arch/parisc/oprofile/
86
6525ee55 87PALO := $(shell if (which palo 2>&1); then : ; \
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88 elif [ -x /sbin/palo ]; then echo /sbin/palo; \
89 fi)
90
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91PALOCONF := $(shell if [ -f $(src)/palo.conf ]; then echo $(src)/palo.conf; \
92 else echo $(obj)/palo.conf; \
93 fi)
94
5feb4f39 95palo: vmlinux
f67d4033 96 @if test ! -x "$(PALO)"; then \
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97 echo 'ERROR: Please install palo first (apt-get install palo)';\
98 echo 'or build it from source and install it somewhere in your $$PATH';\
99 false; \
100 fi
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101 @if test ! -f "$(PALOCONF)"; then \
102 cp $(src)/arch/parisc/defpalo.conf $(obj)/palo.conf; \
103 echo 'A generic palo config file ($(obj)/palo.conf) has been created for you.'; \
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104 echo 'You should check it and re-run "make palo".'; \
105 echo 'WARNING: the "lifimage" file is now placed in this directory by default!'; \
106 false; \
107 fi
f67d4033 108 $(PALO) -f $(PALOCONF)
5feb4f39 109
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110# Shorthands for known targets not supported by parisc, use vmlinux as default
111Image zImage bzImage: vmlinux
1da177e4 112
1905b771 113install: vmlinux
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114 sh $(src)/arch/parisc/install.sh \
115 $(KERNELRELEASE) $< System.map "$(INSTALL_PATH)"
116
0013a854 117CLEAN_FILES += lifimage
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118MRPROPER_FILES += palo.conf
119
120define archhelp
121 @echo '* vmlinux - Uncompressed kernel image (./vmlinux)'
5feb4f39 122 @echo ' palo - Bootable image (./lifimage)'
1da177e4 123 @echo ' install - Install kernel using'
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124 @echo ' (your) ~/bin/$(INSTALLKERNEL) or'
125 @echo ' (distribution) /sbin/$(INSTALLKERNEL) or'
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126 @echo ' copy to $$(INSTALL_PATH)'
127endef
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128
129# we require gcc 3.3 or above to compile the kernel
130archprepare: checkbin
131checkbin:
132 @if test "$(call cc-version)" -lt "0303"; then \
133 echo -n "Sorry, GCC v3.3 or above is required to build " ; \
134 echo "the kernel." ; \
135 false ; \
136 fi
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