projects/linux·blob master · refs

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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.
6#
7# This file is subject to the terms and conditions of the GNU General Public
8# License. See the file "COPYING" in the main directory of this archive
9# for more details.
10#
11# Copyright (C) 1994 by Linus Torvalds
12# Portions Copyright (C) 1999 The Puffin Group
13#
14# Modified for PA-RISC Linux by Paul Lahaie, Alex deVries,
15# Mike Shaver, Helge Deller and Martin K. Petersen
16#
17
18boot := arch/parisc/boot
19KBUILD_IMAGE := $(boot)/bzImage
20
21CHECKFLAGS += -D__hppa__=1
22
23ifdef CONFIG_64BIT
24UTS_MACHINE := parisc64
25CHECKFLAGS += -D__LP64__=1
26LD_BFD := elf64-hppa-linux
27else # 32-bit
28LD_BFD := elf32-hppa-linux
29endif
30
31# select defconfig based on actual architecture
32ifeq ($(ARCH),parisc64)
33 KBUILD_DEFCONFIG := generic-64bit_defconfig
34 CC_ARCHES := hppa64
35else
36 KBUILD_DEFCONFIG := generic-32bit_defconfig
37 CC_ARCHES := hppa hppa2.0 hppa1.1
38endif
39
40export LD_BFD
41
42# Set default 32 bits cross compilers for vdso.
43# This means that for 64BIT, both the 64-bit tools and the 32-bit tools
44# need to be in the path.
45CC_ARCHES_32 = hppa hppa2.0 hppa1.1
46CC_SUFFIXES = linux linux-gnu unknown-linux-gnu suse-linux
47CROSS32_COMPILE := $(call cc-cross-prefix, \
48 $(foreach a,$(CC_ARCHES_32), \
49 $(foreach s,$(CC_SUFFIXES),$(a)-$(s)-)))
50CROSS32CC := $(CROSS32_COMPILE)gcc
51export CROSS32CC
52
53# Set default cross compiler for kernel build
54ifdef cross_compiling
55 ifeq ($(CROSS_COMPILE),)
56 CC_SUFFIXES = linux linux-gnu unknown-linux-gnu suse-linux
57 CROSS_COMPILE := $(call cc-cross-prefix, \
58 $(foreach a,$(CC_ARCHES), \
59 $(foreach s,$(CC_SUFFIXES),$(a)-$(s)-)))
60 endif
61endif
62
63ifdef CONFIG_DYNAMIC_FTRACE
64ifdef CONFIG_64BIT
65NOP_COUNT := 8
66else
67NOP_COUNT := 5
68endif
69
70export CC_USING_RECORD_MCOUNT:=1
71export CC_USING_PATCHABLE_FUNCTION_ENTRY:=1
72
73KBUILD_AFLAGS += -DCC_USING_PATCHABLE_FUNCTION_ENTRY=1
74KBUILD_CFLAGS += -DCC_USING_PATCHABLE_FUNCTION_ENTRY=1 \
75 -DFTRACE_PATCHABLE_FUNCTION_SIZE=$(NOP_COUNT)
76
77CC_FLAGS_FTRACE := -fpatchable-function-entry=$(NOP_COUNT),$(shell echo $$(($(NOP_COUNT)-1)))
78endif
79
80OBJCOPY_FLAGS =-O binary -R .note -R .comment -S
81
82cflags-y := -pipe
83
84# These flags should be implied by an hppa-linux configuration, but they
85# are not in gcc 3.2.
86cflags-y += -mno-space-regs
87
88# -mfast-indirect-calls is only relevant for 32-bit kernels.
89ifndef CONFIG_64BIT
90cflags-y += -mfast-indirect-calls
91endif
92
93# Currently we save and restore fpregs on all kernel entry/interruption paths.
94# If that gets optimized, we might need to disable the use of fpregs in the
95# kernel.
96cflags-y += -mdisable-fpregs
97
98# Use long jumps instead of long branches (needed if your linker fails to
99# link a too big vmlinux executable). Not enabled for building modules.
100ifdef CONFIG_MLONGCALLS
101KBUILD_CFLAGS_KERNEL += -mlong-calls
102endif
103
104# Without this, "ld -r" results in .text sections that are too big (> 0x40000)
105# for branches to reach stubs. And multiple .text sections trigger a warning
106# when creating the sysfs module information section.
107ifndef CONFIG_64BIT
108KBUILD_CFLAGS_MODULE += -ffunction-sections
109endif
110
111# select which processor to optimise for
112cflags-$(CONFIG_PA7000) += -march=1.1 -mschedule=7100
113cflags-$(CONFIG_PA7200) += -march=1.1 -mschedule=7200
114cflags-$(CONFIG_PA7100LC) += -march=1.1 -mschedule=7100LC
115cflags-$(CONFIG_PA7300LC) += -march=1.1 -mschedule=7300
116cflags-$(CONFIG_PA8X00) += -march=2.0 -mschedule=8000
117
118KBUILD_CFLAGS += $(cflags-y)
119LIBGCC := $(shell $(CC) -print-libgcc-file-name)
120export LIBGCC
121
122libs-y += arch/parisc/lib/ $(LIBGCC)
123
124drivers-$(CONFIG_VIDEO) += arch/parisc/video/
125
126boot := arch/parisc/boot
127
128PALO := $(shell if (which palo 2>&1); then : ; \
129 elif [ -x /sbin/palo ]; then echo /sbin/palo; \
130 fi)
131
132PALOCONF := $(shell if [ -f $(srctree)/palo.conf ]; then echo $(srctree)/palo.conf; \
133 else echo $(objtree)/palo.conf; \
134 fi)
135
136palo lifimage: vmlinuz
137 @if test ! -x "$(PALO)"; then \
138 echo 'ERROR: Please install palo first (apt-get install palo)';\
139 echo 'or build it from source and install it somewhere in your $$PATH';\
140 false; \
141 fi
142 @if test ! -f "$(PALOCONF)"; then \
143 cp $(srctree)/arch/parisc/defpalo.conf $(objtree)/palo.conf; \
144 echo 'A generic palo config file ($(objtree)/palo.conf) has been created for you.'; \
145 echo 'You should check it and re-run "make palo".'; \
146 echo 'WARNING: the "lifimage" file is now placed in this directory by default!'; \
147 false; \
148 fi
149 $(PALO) -f $(PALOCONF)
150
151BOOT_TARGETS = zImage Image palo lifimage
152INSTALL_TARGETS = zinstall install
153
154PHONY += bzImage $(BOOT_TARGETS) $(INSTALL_TARGETS)
155
156# Default kernel to build
157all: bzImage
158
159zImage: vmlinuz
160Image: vmlinux
161
162bzImage: vmlinux
163 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
164
165vmlinuz: bzImage
166 $(OBJCOPY) $(boot)/bzImage $@
167
168ifeq ($(KBUILD_EXTMOD),)
169# We need to generate vdso-offsets.h before compiling certain files in kernel/.
170# In order to do that, we should use the archprepare target, but we can't since
171# asm-offsets.h is included in some files used to generate vdso-offsets.h, and
172# asm-offsets.h is built in prepare0, for which archprepare is a dependency.
173# Therefore we need to generate the header after prepare0 has been made, hence
174# this hack.
175prepare: vdso_prepare
176vdso_prepare: prepare0
177ifdef CONFIG_64BIT
178 $(Q)$(MAKE) $(build)=arch/parisc/kernel/vdso64 include/generated/vdso64-offsets.h
179 $(if $(CONFIG_COMPAT),$(Q)$(MAKE) \
180 $(build)=arch/parisc/kernel/vdso32 include/generated/vdso32-offsets.h)
181else
182 $(Q)$(MAKE) $(build)=arch/parisc/kernel/vdso32 include/generated/vdso32-offsets.h
183endif
184endif
185
186ifdef CONFIG_64BIT
187vdso-install-y += arch/parisc/kernel/vdso64/vdso64.so
188vdso-install-$(CONFIG_COMPAT) += arch/parisc/kernel/vdso32/vdso32.so
189else
190vdso-install-y += arch/parisc/kernel/vdso32/vdso32.so
191endif
192
193install: KBUILD_IMAGE := vmlinux
194zinstall: KBUILD_IMAGE := vmlinuz
195install zinstall:
196 $(call cmd,install)
197
198CLEAN_FILES += lifimage
199MRPROPER_FILES += palo.conf
200
201define archhelp
202 @echo '* vmlinux - Uncompressed kernel image (./vmlinux)'
203 @echo ' vmlinuz - Compressed kernel image (./vmlinuz)'
204 @echo ' palo - Bootable image (./lifimage)'
205 @echo ' install - Install uncompressed vmlinux kernel using'
206 @echo ' (your) ~/bin/$(INSTALLKERNEL) or'
207 @echo ' (distribution) /sbin/$(INSTALLKERNEL) or'
208 @echo ' copy to $$(INSTALL_PATH)'
209 @echo ' zinstall - Install compressed vmlinuz kernel'
210endef
211
212archheaders:
213 $(Q)$(MAKE) $(build)=arch/parisc/kernel/syscalls all