xref: /openbmc/linux/arch/parisc/Makefile (revision 81de3bf3) 
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) $(KBUILD_CFLAGS) -print-libgcc-file-name)
25export LIBGCC
26
27ifdef CONFIG_64BIT
28UTS_MACHINE	:= parisc64
29CHECKFLAGS	+= -D__LP64__=1
30CC_ARCHES	= hppa64
31LD_BFD		:= elf64-hppa-linux
32else # 32-bit
33CC_ARCHES	= hppa hppa2.0 hppa1.1
34LD_BFD		:= elf32-hppa-linux
35endif
36
37export LD_BFD
38
39ifneq ($(SUBARCH),$(UTS_MACHINE))
40	ifeq ($(CROSS_COMPILE),)
41		CC_SUFFIXES = linux linux-gnu unknown-linux-gnu
42		CROSS_COMPILE := $(call cc-cross-prefix, \
43			$(foreach a,$(CC_ARCHES), \
44			$(foreach s,$(CC_SUFFIXES),$(a)-$(s)-)))
45	endif
46endif
47
48ifdef CONFIG_DYNAMIC_FTRACE
49ifdef CONFIG_64BIT
50NOP_COUNT := 8
51else
52NOP_COUNT := 5
53endif
54
55export CC_USING_RECORD_MCOUNT:=1
56export CC_USING_PATCHABLE_FUNCTION_ENTRY:=1
57
58KBUILD_AFLAGS += -DCC_USING_PATCHABLE_FUNCTION_ENTRY=1
59KBUILD_CFLAGS += -DCC_USING_PATCHABLE_FUNCTION_ENTRY=1 \
60		 -DFTRACE_PATCHABLE_FUNCTION_SIZE=$(NOP_COUNT)
61
62CC_FLAGS_FTRACE := -fpatchable-function-entry=$(NOP_COUNT),$(shell echo $$(($(NOP_COUNT)-1)))
63endif
64
65OBJCOPY_FLAGS =-O binary -R .note -R .comment -S
66
67cflags-y	:= -pipe
68
69# These flags should be implied by an hppa-linux configuration, but they
70# are not in gcc 3.2.
71cflags-y	+= -mno-space-regs
72
73# -mfast-indirect-calls is only relevant for 32-bit kernels.
74ifndef CONFIG_64BIT
75cflags-y	+= -mfast-indirect-calls
76endif
77
78# Currently we save and restore fpregs on all kernel entry/interruption paths.
79# If that gets optimized, we might need to disable the use of fpregs in the
80# kernel.
81cflags-y	+= -mdisable-fpregs
82
83# Use long jumps instead of long branches (needed if your linker fails to
84# link a too big vmlinux executable). Not enabled for building modules.
85ifdef CONFIG_MLONGCALLS
86KBUILD_CFLAGS_KERNEL += -mlong-calls
87endif
88
89# Without this, "ld -r" results in .text sections that are too big (> 0x40000)
90# for branches to reach stubs. And multiple .text sections trigger a warning
91# when creating the sysfs module information section.
92ifndef CONFIG_64BIT
93KBUILD_CFLAGS_MODULE += -ffunction-sections
94endif
95
96# select which processor to optimise for
97cflags-$(CONFIG_PA7000)		+= -march=1.1 -mschedule=7100
98cflags-$(CONFIG_PA7200)		+= -march=1.1 -mschedule=7200
99cflags-$(CONFIG_PA7100LC)	+= -march=1.1 -mschedule=7100LC
100cflags-$(CONFIG_PA7300LC)	+= -march=1.1 -mschedule=7300
101cflags-$(CONFIG_PA8X00)		+= -march=2.0 -mschedule=8000
102
103head-y			:= arch/parisc/kernel/head.o
104
105KBUILD_CFLAGS	+= $(cflags-y)
106
107kernel-y			:= mm/ kernel/ math-emu/
108
109core-y	+= $(addprefix arch/parisc/, $(kernel-y))
110libs-y	+= arch/parisc/lib/ $(LIBGCC)
111
112drivers-$(CONFIG_OPROFILE)		+= arch/parisc/oprofile/
113
114boot	:= arch/parisc/boot
115
116PALO := $(shell if (which palo 2>&1); then : ; \
117	elif [ -x /sbin/palo ]; then echo /sbin/palo; \
118	fi)
119
120PALOCONF := $(shell if [ -f $(srctree)/palo.conf ]; then echo $(srctree)/palo.conf; \
121	else echo $(objtree)/palo.conf; \
122	fi)
123
124palo lifimage: vmlinuz
125	@if test ! -x "$(PALO)"; then \
126		echo 'ERROR: Please install palo first (apt-get install palo)';\
127		echo 'or build it from source and install it somewhere in your $$PATH';\
128		false; \
129	fi
130	@if test ! -f "$(PALOCONF)"; then \
131		cp $(srctree)/arch/parisc/defpalo.conf $(objtree)/palo.conf; \
132		echo 'A generic palo config file ($(objree)/palo.conf) has been created for you.'; \
133		echo 'You should check it and re-run "make palo".'; \
134		echo 'WARNING: the "lifimage" file is now placed in this directory by default!'; \
135		false; \
136	fi
137	$(PALO) -f $(PALOCONF)
138
139BOOT_TARGETS    = zImage Image palo lifimage
140INSTALL_TARGETS = zinstall install
141
142PHONY += bzImage $(BOOT_TARGETS) $(INSTALL_TARGETS)
143
144# Default kernel to build
145all: bzImage
146
147zImage: vmlinuz
148Image: vmlinux
149
150bzImage: vmlinux
151	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
152
153ifdef CONFIG_PARISC_SELF_EXTRACT
154vmlinuz: bzImage
155	$(OBJCOPY) $(boot)/bzImage $@
156else
157vmlinuz: vmlinux
158	@gzip -cf -9 $< > $@
159endif
160
161install:
162	$(CONFIG_SHELL) $(srctree)/arch/parisc/install.sh \
163			$(KERNELRELEASE) vmlinux System.map "$(INSTALL_PATH)"
164zinstall:
165	$(CONFIG_SHELL) $(srctree)/arch/parisc/install.sh \
166			$(KERNELRELEASE) vmlinuz System.map "$(INSTALL_PATH)"
167
168CLEAN_FILES	+= lifimage
169MRPROPER_FILES	+= palo.conf
170
171define archhelp
172	@echo  '* vmlinux	- Uncompressed kernel image (./vmlinux)'
173	@echo  '  vmlinuz	- Compressed kernel image (./vmlinuz)'
174	@echo  '  palo		- Bootable image (./lifimage)'
175	@echo  '  install	- Install uncompressed vmlinux kernel using'
176	@echo  '		  (your) ~/bin/$(INSTALLKERNEL) or'
177	@echo  '		  (distribution) /sbin/$(INSTALLKERNEL) or'
178	@echo  '		  copy to $$(INSTALL_PATH)'
179	@echo  '  zinstall	- Install compressed vmlinuz kernel'
180endef
181
182archclean:
183	$(Q)$(MAKE) $(clean)=$(boot)
184
185archheaders:
186	$(Q)$(MAKE) $(build)=arch/parisc/kernel/syscalls all
187