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