xref: /openbmc/linux/arch/parisc/Makefile (revision c6acb1e7) 
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
18KBUILD_IMAGE := vmlinuz
19
20NM		= sh $(srctree)/arch/parisc/nm
21CHECKFLAGS	+= -D__hppa__=1
22
23ifdef CONFIG_64BIT
24UTS_MACHINE	:= parisc64
25CHECKFLAGS	+= -D__LP64__=1
26LD_BFD		:= elf64-hppa-linux
27else # 32-bit
28LD_BFD		:= elf32-hppa-linux
29endif
30
31# select defconfig based on actual architecture
32ifeq ($(ARCH),parisc64)
33	KBUILD_DEFCONFIG := generic-64bit_defconfig
34	CC_ARCHES := hppa64
35else
36	KBUILD_DEFCONFIG := generic-32bit_defconfig
37	CC_ARCHES := hppa hppa2.0 hppa1.1
38endif
39
40export LD_BFD
41
42ifdef cross_compiling
43	ifeq ($(CROSS_COMPILE),)
44		CC_SUFFIXES = linux linux-gnu unknown-linux-gnu
45		CROSS_COMPILE := $(call cc-cross-prefix, \
46			$(foreach a,$(CC_ARCHES), \
47			$(foreach s,$(CC_SUFFIXES),$(a)-$(s)-)))
48	endif
49endif
50
51ifdef CONFIG_DYNAMIC_FTRACE
52ifdef CONFIG_64BIT
53NOP_COUNT := 8
54else
55NOP_COUNT := 5
56endif
57
58export CC_USING_RECORD_MCOUNT:=1
59export CC_USING_PATCHABLE_FUNCTION_ENTRY:=1
60
61KBUILD_AFLAGS += -DCC_USING_PATCHABLE_FUNCTION_ENTRY=1
62KBUILD_CFLAGS += -DCC_USING_PATCHABLE_FUNCTION_ENTRY=1 \
63		 -DFTRACE_PATCHABLE_FUNCTION_SIZE=$(NOP_COUNT)
64
65CC_FLAGS_FTRACE := -fpatchable-function-entry=$(NOP_COUNT),$(shell echo $$(($(NOP_COUNT)-1)))
66endif
67
68OBJCOPY_FLAGS =-O binary -R .note -R .comment -S
69
70cflags-y	:= -pipe
71
72# These flags should be implied by an hppa-linux configuration, but they
73# are not in gcc 3.2.
74cflags-y	+= -mno-space-regs
75
76# -mfast-indirect-calls is only relevant for 32-bit kernels.
77ifndef CONFIG_64BIT
78cflags-y	+= -mfast-indirect-calls
79endif
80
81# Currently we save and restore fpregs on all kernel entry/interruption paths.
82# If that gets optimized, we might need to disable the use of fpregs in the
83# kernel.
84cflags-y	+= -mdisable-fpregs
85
86# Use long jumps instead of long branches (needed if your linker fails to
87# link a too big vmlinux executable). Not enabled for building modules.
88ifdef CONFIG_MLONGCALLS
89KBUILD_CFLAGS_KERNEL += -mlong-calls
90endif
91
92# Without this, "ld -r" results in .text sections that are too big (> 0x40000)
93# for branches to reach stubs. And multiple .text sections trigger a warning
94# when creating the sysfs module information section.
95ifndef CONFIG_64BIT
96KBUILD_CFLAGS_MODULE += -ffunction-sections
97endif
98
99# select which processor to optimise for
100cflags-$(CONFIG_PA7000)		+= -march=1.1 -mschedule=7100
101cflags-$(CONFIG_PA7200)		+= -march=1.1 -mschedule=7200
102cflags-$(CONFIG_PA7100LC)	+= -march=1.1 -mschedule=7100LC
103cflags-$(CONFIG_PA7300LC)	+= -march=1.1 -mschedule=7300
104cflags-$(CONFIG_PA8X00)		+= -march=2.0 -mschedule=8000
105
106head-y			:= arch/parisc/kernel/head.o
107
108KBUILD_CFLAGS	+= $(cflags-y)
109LIBGCC		:= $(shell $(CC) -print-libgcc-file-name)
110export LIBGCC
111
112libs-y	+= arch/parisc/lib/ $(LIBGCC)
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 $@
156else
157vmlinuz: vmlinux
158	@$(KGZIP) -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
182archheaders:
183	$(Q)$(MAKE) $(build)=arch/parisc/kernel/syscalls all
184