xref: /openbmc/linux/arch/parisc/Makefile (revision 2cf1c348)
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
18ifdef CONFIG_PARISC_SELF_EXTRACT
19boot := arch/parisc/boot
20KBUILD_IMAGE := $(boot)/bzImage
21else
22KBUILD_IMAGE := vmlinuz
23endif
24
25NM		= sh $(srctree)/arch/parisc/nm
26CHECKFLAGS	+= -D__hppa__=1
27
28ifdef CONFIG_64BIT
29UTS_MACHINE	:= parisc64
30CHECKFLAGS	+= -D__LP64__=1
31LD_BFD		:= elf64-hppa-linux
32else # 32-bit
33LD_BFD		:= elf32-hppa-linux
34endif
35
36# select defconfig based on actual architecture
37ifeq ($(ARCH),parisc64)
38	KBUILD_DEFCONFIG := generic-64bit_defconfig
39	CC_ARCHES := hppa64
40else
41	KBUILD_DEFCONFIG := generic-32bit_defconfig
42	CC_ARCHES := hppa hppa2.0 hppa1.1
43endif
44
45export LD_BFD
46
47ifdef cross_compiling
48	ifeq ($(CROSS_COMPILE),)
49		CC_SUFFIXES = linux linux-gnu unknown-linux-gnu
50		CROSS_COMPILE := $(call cc-cross-prefix, \
51			$(foreach a,$(CC_ARCHES), \
52			$(foreach s,$(CC_SUFFIXES),$(a)-$(s)-)))
53	endif
54endif
55
56ifdef CONFIG_DYNAMIC_FTRACE
57ifdef CONFIG_64BIT
58NOP_COUNT := 8
59else
60NOP_COUNT := 5
61endif
62
63export CC_USING_RECORD_MCOUNT:=1
64export CC_USING_PATCHABLE_FUNCTION_ENTRY:=1
65
66KBUILD_AFLAGS += -DCC_USING_PATCHABLE_FUNCTION_ENTRY=1
67KBUILD_CFLAGS += -DCC_USING_PATCHABLE_FUNCTION_ENTRY=1 \
68		 -DFTRACE_PATCHABLE_FUNCTION_SIZE=$(NOP_COUNT)
69
70CC_FLAGS_FTRACE := -fpatchable-function-entry=$(NOP_COUNT),$(shell echo $$(($(NOP_COUNT)-1)))
71endif
72
73OBJCOPY_FLAGS =-O binary -R .note -R .comment -S
74
75cflags-y	:= -pipe
76
77# These flags should be implied by an hppa-linux configuration, but they
78# are not in gcc 3.2.
79cflags-y	+= -mno-space-regs
80
81# -mfast-indirect-calls is only relevant for 32-bit kernels.
82ifndef CONFIG_64BIT
83cflags-y	+= -mfast-indirect-calls
84endif
85
86# Currently we save and restore fpregs on all kernel entry/interruption paths.
87# If that gets optimized, we might need to disable the use of fpregs in the
88# kernel.
89cflags-y	+= -mdisable-fpregs
90
91# Use long jumps instead of long branches (needed if your linker fails to
92# link a too big vmlinux executable). Not enabled for building modules.
93ifdef CONFIG_MLONGCALLS
94KBUILD_CFLAGS_KERNEL += -mlong-calls
95endif
96
97# Without this, "ld -r" results in .text sections that are too big (> 0x40000)
98# for branches to reach stubs. And multiple .text sections trigger a warning
99# when creating the sysfs module information section.
100ifndef CONFIG_64BIT
101KBUILD_CFLAGS_MODULE += -ffunction-sections
102endif
103
104# select which processor to optimise for
105cflags-$(CONFIG_PA7000)		+= -march=1.1 -mschedule=7100
106cflags-$(CONFIG_PA7200)		+= -march=1.1 -mschedule=7200
107cflags-$(CONFIG_PA7100LC)	+= -march=1.1 -mschedule=7100LC
108cflags-$(CONFIG_PA7300LC)	+= -march=1.1 -mschedule=7300
109cflags-$(CONFIG_PA8X00)		+= -march=2.0 -mschedule=8000
110
111head-y			:= arch/parisc/kernel/head.o
112
113KBUILD_CFLAGS	+= $(cflags-y)
114LIBGCC		:= $(shell $(CC) -print-libgcc-file-name)
115export LIBGCC
116
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
187archheaders:
188	$(Q)$(MAKE) $(build)=arch/parisc/kernel/syscalls all
189