tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
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
22NM = sh $(srctree)/arch/parisc/nm
23CHECKFLAGS += -D__hppa__=1
24LIBGCC = $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
25export LIBGCC
26
27ifdef CONFIG_64BIT
28UTS_MACHINE := parisc64
29CHECKFLAGS += -D__LP64__=1
30CC_ARCHES = hppa64
31LD_BFD := elf64-hppa-linux
32else # 32-bit
33CC_ARCHES = hppa hppa2.0 hppa1.1
34LD_BFD := elf32-hppa-linux
35endif
36
37# select defconfig based on actual architecture
38ifeq ($(shell uname -m),parisc64)
39 KBUILD_DEFCONFIG := generic-64bit_defconfig
40else
41 KBUILD_DEFCONFIG := generic-32bit_defconfig
42endif
43
44export LD_BFD
45
46ifneq ($(SUBARCH),$(UTS_MACHINE))
47 ifeq ($(CROSS_COMPILE),)
48 CC_SUFFIXES = linux linux-gnu unknown-linux-gnu
49 CROSS_COMPILE := $(call cc-cross-prefix, \
50 $(foreach a,$(CC_ARCHES), \
51 $(foreach s,$(CC_SUFFIXES),$(a)-$(s)-)))
52 endif
53endif
54
55ifdef CONFIG_DYNAMIC_FTRACE
56ifdef CONFIG_64BIT
57NOP_COUNT := 8
58else
59NOP_COUNT := 5
60endif
61
62export CC_USING_RECORD_MCOUNT:=1
63export CC_USING_PATCHABLE_FUNCTION_ENTRY:=1
64
65KBUILD_AFLAGS += -DCC_USING_PATCHABLE_FUNCTION_ENTRY=1
66KBUILD_CFLAGS += -DCC_USING_PATCHABLE_FUNCTION_ENTRY=1 \
67 -DFTRACE_PATCHABLE_FUNCTION_SIZE=$(NOP_COUNT)
68
69CC_FLAGS_FTRACE := -fpatchable-function-entry=$(NOP_COUNT),$(shell echo $$(($(NOP_COUNT)-1)))
70endif
71
72OBJCOPY_FLAGS =-O binary -R .note -R .comment -S
73
74cflags-y := -pipe
75
76# These flags should be implied by an hppa-linux configuration, but they
77# are not in gcc 3.2.
78cflags-y += -mno-space-regs
79
80# -mfast-indirect-calls is only relevant for 32-bit kernels.
81ifndef CONFIG_64BIT
82cflags-y += -mfast-indirect-calls
83endif
84
85# Currently we save and restore fpregs on all kernel entry/interruption paths.
86# If that gets optimized, we might need to disable the use of fpregs in the
87# kernel.
88cflags-y += -mdisable-fpregs
89
90# Use long jumps instead of long branches (needed if your linker fails to
91# link a too big vmlinux executable). Not enabled for building modules.
92ifdef CONFIG_MLONGCALLS
93KBUILD_CFLAGS_KERNEL += -mlong-calls
94endif
95
96# Without this, "ld -r" results in .text sections that are too big (> 0x40000)
97# for branches to reach stubs. And multiple .text sections trigger a warning
98# when creating the sysfs module information section.
99ifndef CONFIG_64BIT
100KBUILD_CFLAGS_MODULE += -ffunction-sections
101endif
102
103# select which processor to optimise for
104cflags-$(CONFIG_PA7000) += -march=1.1 -mschedule=7100
105cflags-$(CONFIG_PA7200) += -march=1.1 -mschedule=7200
106cflags-$(CONFIG_PA7100LC) += -march=1.1 -mschedule=7100LC
107cflags-$(CONFIG_PA7300LC) += -march=1.1 -mschedule=7300
108cflags-$(CONFIG_PA8X00) += -march=2.0 -mschedule=8000
109
110head-y := arch/parisc/kernel/head.o
111
112KBUILD_CFLAGS += $(cflags-y)
113
114kernel-y := mm/ kernel/ math-emu/
115
116core-y += $(addprefix arch/parisc/, $(kernel-y))
117libs-y += arch/parisc/lib/ $(LIBGCC)
118
119drivers-$(CONFIG_OPROFILE) += arch/parisc/oprofile/
120
121boot := arch/parisc/boot
122
123PALO := $(shell if (which palo 2>&1); then : ; \
124 elif [ -x /sbin/palo ]; then echo /sbin/palo; \
125 fi)
126
127PALOCONF := $(shell if [ -f $(srctree)/palo.conf ]; then echo $(srctree)/palo.conf; \
128 else echo $(objtree)/palo.conf; \
129 fi)
130
131palo lifimage: vmlinuz
132 @if test ! -x "$(PALO)"; then \
133 echo 'ERROR: Please install palo first (apt-get install palo)';\
134 echo 'or build it from source and install it somewhere in your $$PATH';\
135 false; \
136 fi
137 @if test ! -f "$(PALOCONF)"; then \
138 cp $(srctree)/arch/parisc/defpalo.conf $(objtree)/palo.conf; \
139 echo 'A generic palo config file ($(objree)/palo.conf) has been created for you.'; \
140 echo 'You should check it and re-run "make palo".'; \
141 echo 'WARNING: the "lifimage" file is now placed in this directory by default!'; \
142 false; \
143 fi
144 $(PALO) -f $(PALOCONF)
145
146BOOT_TARGETS = zImage Image palo lifimage
147INSTALL_TARGETS = zinstall install
148
149PHONY += bzImage $(BOOT_TARGETS) $(INSTALL_TARGETS)
150
151# Default kernel to build
152all: bzImage
153
154zImage: vmlinuz
155Image: vmlinux
156
157bzImage: vmlinux
158 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
159
160ifdef CONFIG_PARISC_SELF_EXTRACT
161vmlinuz: bzImage
162 $(OBJCOPY) $(boot)/bzImage $@
163else
164vmlinuz: vmlinux
165 @gzip -cf -9 $< > $@
166endif
167
168install:
169 $(CONFIG_SHELL) $(srctree)/arch/parisc/install.sh \
170 $(KERNELRELEASE) vmlinux System.map "$(INSTALL_PATH)"
171zinstall:
172 $(CONFIG_SHELL) $(srctree)/arch/parisc/install.sh \
173 $(KERNELRELEASE) vmlinuz System.map "$(INSTALL_PATH)"
174
175CLEAN_FILES += lifimage
176MRPROPER_FILES += palo.conf
177
178define archhelp
179 @echo '* vmlinux - Uncompressed kernel image (./vmlinux)'
180 @echo ' vmlinuz - Compressed kernel image (./vmlinuz)'
181 @echo ' palo - Bootable image (./lifimage)'
182 @echo ' install - Install uncompressed vmlinux kernel using'
183 @echo ' (your) ~/bin/$(INSTALLKERNEL) or'
184 @echo ' (distribution) /sbin/$(INSTALLKERNEL) or'
185 @echo ' copy to $$(INSTALL_PATH)'
186 @echo ' zinstall - Install compressed vmlinuz kernel'
187endef
188
189archclean:
190 $(Q)$(MAKE) $(clean)=$(boot)
191
192archheaders:
193 $(Q)$(MAKE) $(build)=arch/parisc/kernel/syscalls all