Root/arch/parisc/Makefile

Source at commit cf71130d630d773ef1861adbd8a034d3ac806f3e created 10 years 11 months ago.
By Helge Deller, parisc: disable -mlong-calls compiler option for kernel modules
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_DEFCONFIG := default_defconfig
21
22NM = sh $(srctree)/arch/parisc/nm
23CHECKFLAGS += -D__hppa__=1
24LIBGCC = $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
25
26MACHINE := $(shell uname -m)
27ifeq ($(MACHINE),parisc*)
28NATIVE := 1
29endif
30
31ifdef CONFIG_64BIT
32UTS_MACHINE := parisc64
33CHECKFLAGS += -D__LP64__=1 -m64
34WIDTH := 64
35else # 32-bit
36WIDTH :=
37endif
38
39# attempt to help out folks who are cross-compiling
40ifeq ($(NATIVE),1)
41CROSS_COMPILE := hppa$(WIDTH)-linux-
42else
43 ifeq ($(CROSS_COMPILE),)
44 CROSS_COMPILE := hppa$(WIDTH)-linux-gnu-
45 endif
46endif
47
48OBJCOPY_FLAGS =-O binary -R .note -R .comment -S
49
50cflags-y := -pipe
51
52# These flags should be implied by an hppa-linux configuration, but they
53# are not in gcc 3.2.
54cflags-y += -mno-space-regs -mfast-indirect-calls
55
56# Currently we save and restore fpregs on all kernel entry/interruption paths.
57# If that gets optimized, we might need to disable the use of fpregs in the
58# kernel.
59cflags-y += -mdisable-fpregs
60
61# Without this, "ld -r" results in .text sections that are too big
62# (> 0x40000) for branches to reach stubs.
63ifndef CONFIG_FUNCTION_TRACER
64  cflags-y += -ffunction-sections
65endif
66
67# Use long jumps instead of long branches (needed if your linker fails to
68# link a too big vmlinux executable). Not enabled for building modules.
69ifdef CONFIG_MLONGCALLS
70KBUILD_CFLAGS_KERNEL += -mlong-calls
71endif
72
73# select which processor to optimise for
74cflags-$(CONFIG_PA7100) += -march=1.1 -mschedule=7100
75cflags-$(CONFIG_PA7200) += -march=1.1 -mschedule=7200
76cflags-$(CONFIG_PA7100LC) += -march=1.1 -mschedule=7100LC
77cflags-$(CONFIG_PA7300LC) += -march=1.1 -mschedule=7300
78cflags-$(CONFIG_PA8X00) += -march=2.0 -mschedule=8000
79
80head-y := arch/parisc/kernel/head.o
81
82KBUILD_CFLAGS += $(cflags-y)
83
84kernel-y := mm/ kernel/ math-emu/
85kernel-$(CONFIG_HPUX) += hpux/
86
87core-y += $(addprefix arch/parisc/, $(kernel-y))
88libs-y += arch/parisc/lib/ $(LIBGCC)
89
90drivers-$(CONFIG_OPROFILE) += arch/parisc/oprofile/
91
92PALO := $(shell if (which palo 2>&1); then : ; \
93    elif [ -x /sbin/palo ]; then echo /sbin/palo; \
94    fi)
95
96PALOCONF := $(shell if [ -f $(src)/palo.conf ]; then echo $(src)/palo.conf; \
97    else echo $(obj)/palo.conf; \
98    fi)
99
100palo: vmlinux
101    @if test ! -x "$(PALO)"; then \
102        echo 'ERROR: Please install palo first (apt-get install palo)';\
103        echo 'or build it from source and install it somewhere in your $$PATH';\
104        false; \
105    fi
106    @if test ! -f "$(PALOCONF)"; then \
107        cp $(src)/arch/parisc/defpalo.conf $(obj)/palo.conf; \
108        echo 'A generic palo config file ($(obj)/palo.conf) has been created for you.'; \
109        echo 'You should check it and re-run "make palo".'; \
110        echo 'WARNING: the "lifimage" file is now placed in this directory by default!'; \
111        false; \
112    fi
113    $(PALO) -f $(PALOCONF)
114
115# Shorthands for known targets not supported by parisc, use vmlinux as default
116Image zImage bzImage: vmlinux
117
118install: vmlinux
119    sh $(src)/arch/parisc/install.sh \
120            $(KERNELRELEASE) $< System.map "$(INSTALL_PATH)"
121
122CLEAN_FILES += lifimage
123MRPROPER_FILES += palo.conf
124
125define archhelp
126    @echo '* vmlinux - Uncompressed kernel image (./vmlinux)'
127    @echo ' palo - Bootable image (./lifimage)'
128    @echo ' install - Install kernel using'
129    @echo ' (your) ~/bin/$(INSTALLKERNEL) or'
130    @echo ' (distribution) /sbin/$(INSTALLKERNEL) or'
131    @echo ' copy to $$(INSTALL_PATH)'
132endef
133
134# we require gcc 3.3 or above to compile the kernel
135archprepare: checkbin
136checkbin:
137    @if test "$(call cc-version)" -lt "0303"; then \
138        echo -n "Sorry, GCC v3.3 or above is required to build " ; \
139        echo "the kernel." ; \
140        false ; \
141    fi
142

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