xref: /openbmc/linux/arch/parisc/Makefile (revision 7b6ef6e5) 
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 $(srctree)/arch/parisc/nm
23CHECKFLAGS	+= -D__hppa__=1
24
25ifdef CONFIG_64BIT
26UTS_MACHINE	:= parisc64
27CHECKFLAGS	+= -D__LP64__=1
28LD_BFD		:= elf64-hppa-linux
29else # 32-bit
30LD_BFD		:= elf32-hppa-linux
31endif
32
33# select defconfig based on actual architecture
34ifeq ($(ARCH),parisc64)
35	KBUILD_DEFCONFIG := generic-64bit_defconfig
36	CC_ARCHES := hppa64
37else
38	KBUILD_DEFCONFIG := generic-32bit_defconfig
39	CC_ARCHES := hppa hppa2.0 hppa1.1
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
114libs-y	+= arch/parisc/lib/ $(LIBGCC)
115
116boot	:= arch/parisc/boot
117
118PALO := $(shell if (which palo 2>&1); then : ; \
119	elif [ -x /sbin/palo ]; then echo /sbin/palo; \
120	fi)
121
122PALOCONF := $(shell if [ -f $(srctree)/palo.conf ]; then echo $(srctree)/palo.conf; \
123	else echo $(objtree)/palo.conf; \
124	fi)
125
126palo lifimage: vmlinuz
127	@if test ! -x "$(PALO)"; then \
128		echo 'ERROR: Please install palo first (apt-get install palo)';\
129		echo 'or build it from source and install it somewhere in your $$PATH';\
130		false; \
131	fi
132	@if test ! -f "$(PALOCONF)"; then \
133		cp $(srctree)/arch/parisc/defpalo.conf $(objtree)/palo.conf; \
134		echo 'A generic palo config file ($(objree)/palo.conf) has been created for you.'; \
135		echo 'You should check it and re-run "make palo".'; \
136		echo 'WARNING: the "lifimage" file is now placed in this directory by default!'; \
137		false; \
138	fi
139	$(PALO) -f $(PALOCONF)
140
141BOOT_TARGETS    = zImage Image palo lifimage
142INSTALL_TARGETS = zinstall install
143
144PHONY += bzImage $(BOOT_TARGETS) $(INSTALL_TARGETS)
145
146# Default kernel to build
147all: bzImage
148
149zImage: vmlinuz
150Image: vmlinux
151
152bzImage: vmlinux
153	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
154
155ifdef CONFIG_PARISC_SELF_EXTRACT
156vmlinuz: bzImage
157	$(OBJCOPY) $(boot)/bzImage $@
158else
159vmlinuz: vmlinux
160	@$(KGZIP) -cf -9 $< > $@
161endif
162
163install:
164	$(CONFIG_SHELL) $(srctree)/arch/parisc/install.sh \
165			$(KERNELRELEASE) vmlinux System.map "$(INSTALL_PATH)"
166zinstall:
167	$(CONFIG_SHELL) $(srctree)/arch/parisc/install.sh \
168			$(KERNELRELEASE) vmlinuz System.map "$(INSTALL_PATH)"
169
170CLEAN_FILES	+= lifimage
171MRPROPER_FILES	+= palo.conf
172
173define archhelp
174	@echo  '* vmlinux	- Uncompressed kernel image (./vmlinux)'
175	@echo  '  vmlinuz	- Compressed kernel image (./vmlinuz)'
176	@echo  '  palo		- Bootable image (./lifimage)'
177	@echo  '  install	- Install uncompressed vmlinux kernel using'
178	@echo  '		  (your) ~/bin/$(INSTALLKERNEL) or'
179	@echo  '		  (distribution) /sbin/$(INSTALLKERNEL) or'
180	@echo  '		  copy to $$(INSTALL_PATH)'
181	@echo  '  zinstall	- Install compressed vmlinuz kernel'
182endef
183
184archclean:
185	$(Q)$(MAKE) $(clean)=$(boot)
186
187archheaders:
188	$(Q)$(MAKE) $(build)=arch/parisc/kernel/syscalls all
189