source: src/linux/universal/linux-3.2/arch/mips/Makefile @ 18294

Last change on this file since 18294 was 18294, checked in by BrainSlayer, 16 months ago

hornet support (quick and dirty)
File size: 11.5 KB
Line 
1#
2# This file is subject to the terms and conditions of the GNU General Public
3# License.  See the file "COPYING" in the main directory of this archive
4# for more details.
5#
6# Copyright (C) 1994, 95, 96, 2003 by Ralf Baechle
7# DECStation modifications by Paul M. Antoine, 1996
8# Copyright (C) 2002, 2003, 2004  Maciej W. Rozycki
9#
10# This file is included by the global makefile so that you can add your own
11# architecture-specific flags and dependencies. Remember to do have actions
12# for "archclean" cleaning up for this architecture.
13#
14
15KBUILD_DEFCONFIG := ip22_defconfig
16
17#
18# Select the object file format to substitute into the linker script.
19#
20ifdef CONFIG_CPU_LITTLE_ENDIAN
2132bit-tool-archpref     = mipsel
2264bit-tool-archpref     = mips64el
2332bit-bfd               = elf32-tradlittlemips
2464bit-bfd               = elf64-tradlittlemips
2532bit-emul              = elf32ltsmip
2664bit-emul              = elf64ltsmip
27else
2832bit-tool-archpref     = mips
2964bit-tool-archpref     = mips64
3032bit-bfd               = elf32-tradbigmips
3164bit-bfd               = elf64-tradbigmips
3232bit-emul              = elf32btsmip
3364bit-emul              = elf64btsmip
34endif
35
36ifdef CONFIG_32BIT
37tool-archpref           = $(32bit-tool-archpref)
38UTS_MACHINE             := mips
39endif
40ifdef CONFIG_64BIT
41tool-archpref           = $(64bit-tool-archpref)
42UTS_MACHINE             := mips64
43endif
44
45ifneq ($(SUBARCH),$(ARCH))
46  ifeq ($(CROSS_COMPILE),)
47    CROSS_COMPILE := $(call cc-cross-prefix, $(tool-archpref)-linux-  $(tool-archpref)-linux-gnu-  $(tool-archpref)-unknown-linux-gnu-)
48  endif
49endif
50
51ifdef CONFIG_FUNCTION_GRAPH_TRACER
52  ifndef KBUILD_MCOUNT_RA_ADDRESS
53    ifeq ($(call cc-option-yn,-mmcount-ra-address), y)
54      cflags-y += -mmcount-ra-address -DKBUILD_MCOUNT_RA_ADDRESS
55    endif
56  endif
57endif
58cflags-y += $(call cc-option, -mno-check-zero-division)
59
60ifdef CONFIG_32BIT
61ld-emul                 = $(32bit-emul)
62vmlinux-32              = vmlinux
63vmlinux-64              = vmlinux.64
64
65cflags-y                += -mabi=32
66endif
67
68ifdef CONFIG_64BIT
69ld-emul                 = $(64bit-emul)
70vmlinux-32              = vmlinux.32
71vmlinux-64              = vmlinux
72
73cflags-y                += -mabi=64
74endif
75
76all-$(CONFIG_BOOT_ELF32)        := $(vmlinux-32)
77all-$(CONFIG_BOOT_ELF64)        := $(vmlinux-64)
78all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlinuz
79
80#
81# GCC uses -G 0 -mabicalls -fpic as default.  We don't want PIC in the kernel
82# code since it only slows down the whole thing.  At some point we might make
83# use of global pointer optimizations but their use of $28 conflicts with
84# the current pointer optimization.
85#
86# The DECStation requires an ECOFF kernel for remote booting, other MIPS
87# machines may also.  Since BFD is incredibly buggy with respect to
88# crossformat linking we rely on the elf2ecoff tool for format conversion.
89#
90cflags-y                        += -G 0 -mno-abicalls -fno-pic -pipe
91cflags-y                        += -msoft-float
92LDFLAGS_vmlinux                 += -G 0 -static -n -nostdlib
93KBUILD_AFLAGS_MODULE            += -mno-long-calls
94KBUILD_CFLAGS_MODULE            += -mno-long-calls
95
96cflags-y += -ffreestanding
97
98#
99# We explicitly add the endianness specifier if needed, this allows
100# to compile kernels with a toolchain for the other endianness. We
101# carefully avoid to add it redundantly because gcc 3.3/3.4 complains
102# when fed the toolchain default!
103#
104# Certain gcc versions up to gcc 4.1.1 (probably 4.2-subversion as of
105# 2006-10-10 don't properly change the predefined symbols if -EB / -EL
106# are used, so we kludge that here.  A bug has been filed at
107# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29413.
108#
109undef-all += -UMIPSEB -U_MIPSEB -U__MIPSEB -U__MIPSEB__
110undef-all += -UMIPSEL -U_MIPSEL -U__MIPSEL -U__MIPSEL__
111predef-be += -DMIPSEB -D_MIPSEB -D__MIPSEB -D__MIPSEB__
112predef-le += -DMIPSEL -D_MIPSEL -D__MIPSEL -D__MIPSEL__
113cflags-$(CONFIG_CPU_BIG_ENDIAN)         += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' && echo -EB $(undef-all) $(predef-be))
114cflags-$(CONFIG_CPU_LITTLE_ENDIAN)      += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' || echo -EL $(undef-all) $(predef-le))
115
116cflags-$(CONFIG_CPU_HAS_SMARTMIPS)      += $(call cc-option,-msmartmips)
117
118cflags-$(CONFIG_SB1XXX_CORELIS) += $(call cc-option,-mno-sched-prolog) \
119                                   -fno-omit-frame-pointer
120
121#
122# CPU-dependent compiler/assembler options for optimization.
123#
124cflags-$(CONFIG_CPU_R3000)      += -march=r3000
125cflags-$(CONFIG_CPU_TX39XX)     += -march=r3900
126cflags-$(CONFIG_CPU_R6000)      += -march=r6000 -Wa,--trap
127cflags-$(CONFIG_CPU_R4300)      += -march=r4300 -Wa,--trap
128cflags-$(CONFIG_CPU_VR41XX)     += -march=r4100 -Wa,--trap
129cflags-$(CONFIG_CPU_R4X00)      += -march=r4600 -Wa,--trap
130cflags-$(CONFIG_CPU_TX49XX)     += -march=r4600 -Wa,--trap
131cflags-$(CONFIG_CPU_MIPS32_R1)  += $(call cc-option,-march=mips32,-mips32 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \
132                        -Wa,-mips32 -Wa,--trap
133cflags-$(CONFIG_CPU_MIPS32_R2)  += $(call cc-option,-march=mips32r2,-mips32r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \
134                        -Wa,-mips32r2 -Wa,--trap
135cflags-$(CONFIG_CPU_MIPS64_R1)  += $(call cc-option,-march=mips64,-mips64 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \
136                        -Wa,-mips64 -Wa,--trap
137cflags-$(CONFIG_CPU_MIPS64_R2)  += $(call cc-option,-march=mips64r2,-mips64r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \
138                        -Wa,-mips64r2 -Wa,--trap
139cflags-$(CONFIG_CPU_R5000)      += -march=r5000 -Wa,--trap
140cflags-$(CONFIG_CPU_R5432)      += $(call cc-option,-march=r5400,-march=r5000) \
141                        -Wa,--trap
142cflags-$(CONFIG_CPU_R5500)      += $(call cc-option,-march=r5500,-march=r5000) \
143                        -Wa,--trap
144cflags-$(CONFIG_CPU_NEVADA)     += $(call cc-option,-march=rm5200,-march=r5000) \
145                        -Wa,--trap
146cflags-$(CONFIG_CPU_RM7000)     += $(call cc-option,-march=rm7000,-march=r5000) \
147                        -Wa,--trap
148cflags-$(CONFIG_CPU_RM9000)     += $(call cc-option,-march=rm9000,-march=r5000) \
149                        -Wa,--trap
150cflags-$(CONFIG_CPU_SB1)        += $(call cc-option,-march=sb1,-march=r5000) \
151                        -Wa,--trap
152cflags-$(CONFIG_CPU_R8000)      += -march=r8000 -Wa,--trap
153cflags-$(CONFIG_CPU_R10000)     += $(call cc-option,-march=r10000,-march=r8000) \
154                        -Wa,--trap
155cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += $(call cc-option,-march=octeon) -Wa,--trap
156ifeq (,$(findstring march=octeon, $(cflags-$(CONFIG_CPU_CAVIUM_OCTEON))))
157cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -Wa,-march=octeon
158endif
159cflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix-cn63xxp1
160
161ifndef CONFIG_AR9100
162ifndef CONFIG_AR7100_LOW
163#
164#Atheros Ar7100
165#
166core-$(CONFIG_MACH_AR7100)              +=      arch/mips/ar7100/
167load-$(CONFIG_MACH_AR7100)              +=      0xffffffff80060000
168cflags-$(CONFIG_MACH_AR7100)    += -I$(srctree)/arch/mips/include/asm/mach-ar7100
169#
170else
171#
172# This is the Low memory load variant.  For AP94 and others
173#
174core-$(CONFIG_MACH_AR7100)              +=      arch/mips/ar7100/
175load-$(CONFIG_MACH_AR7100)              +=      0xffffffff80002000
176cflags-$(CONFIG_MACH_AR7100)    += -I$(srctree)/arch/mips/include/asm/mach-ar7100
177#
178endif
179else
180#
181# This is the AR9100 variant. Still dependant on MACH_AR7100
182#
183core-$(CONFIG_MACH_AR7100)              +=      arch/mips/ar7100/
184load-$(CONFIG_MACH_AR7100)              +=      0xffffffff80002000
185cflags-$(CONFIG_MACH_AR7100)    += -I$(srctree)/arch/mips/include/asm/mach-ar7100
186#
187endif
188
189#Atheros Ar9330(Hornet)
190#
191core-$(CONFIG_MACH_HORNET)              +=      arch/mips/ar7240/
192load-$(CONFIG_MACH_HORNET)              +=      0xffffffff80002000
193cflags-$(CONFIG_MACH_HORNET)    += -I$(srctree)/arch/mips/include/asm/mach-ar7240
194
195
196#Atheros Ar7240
197#
198core-$(CONFIG_MACH_AR7240)              +=      arch/mips/ar7240/
199load-$(CONFIG_MACH_AR7240)              +=      0xffffffff80002000
200#load-$(CONFIG_MACH_AR7240)             +=      0xffffffffa0002000
201cflags-$(CONFIG_MACH_AR7240)    += -I$(srctree)/arch/mips/include/asm/mach-ar7240
202#
203
204
205
206cflags-$(CONFIG_CPU_R4000_WORKAROUNDS)  += $(call cc-option,-mfix-r4000,)
207cflags-$(CONFIG_CPU_R4400_WORKAROUNDS)  += $(call cc-option,-mfix-r4400,)
208cflags-$(CONFIG_CPU_DADDI_WORKAROUNDS)  += $(call cc-option,-mno-daddi,)
209
210ifdef CONFIG_CPU_SB1
211ifdef CONFIG_SB1_PASS_1_WORKAROUNDS
212KBUILD_AFLAGS_MODULE += -msb1-pass1-workarounds
213KBUILD_CFLAGS_MODULE += -msb1-pass1-workarounds
214endif
215endif
216
217#
218# Firmware support
219#
220libs-$(CONFIG_ARC)              += arch/mips/fw/arc/
221libs-$(CONFIG_CFE)              += arch/mips/fw/cfe/
222libs-$(CONFIG_SNIPROM)          += arch/mips/fw/sni/
223libs-y                          += arch/mips/fw/lib/
224
225#
226# Kernel compression
227#
228ifdef SYS_SUPPORTS_ZBOOT
229COMPRESSION_FNAME               = vmlinuz
230else
231COMPRESSION_FNAME               = vmlinux
232endif
233
234#
235# Board-dependent options and extra files
236#
237include $(srctree)/arch/mips/Kbuild.platforms
238
239cflags-y                        += -I$(srctree)/arch/mips/include/asm/mach-generic
240drivers-$(CONFIG_PCI)           += arch/mips/pci/
241
242#
243# Automatically detect the build format. By default we choose
244# the elf format according to the load address.
245# We can always force a build with a 64-bits symbol format by
246# passing 'KBUILD_SYM32=no' option to the make's command line.
247#
248ifdef CONFIG_64BIT
249  ifndef KBUILD_SYM32
250    ifeq ($(shell expr $(load-y) \< 0xffffffff80000000), 0)
251      KBUILD_SYM32 = y
252    endif
253  endif
254
255  ifeq ($(KBUILD_SYM32)$(call cc-option-yn,-msym32), yy)
256    cflags-y += -msym32 -DKBUILD_64BIT_SYM32
257  else
258    ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y)
259      $(error CONFIG_CPU_DADDI_WORKAROUNDS unsupported without -msym32)
260    endif
261  endif
262endif
263
264KBUILD_AFLAGS   += $(cflags-y)
265KBUILD_CFLAGS   += $(cflags-y)
266KBUILD_CPPFLAGS += -D"VMLINUX_LOAD_ADDRESS=$(load-y)"
267KBUILD_CPPFLAGS += -D"DATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0)"
268
269LDFLAGS                 += -m $(ld-emul)
270
271ifdef CONFIG_MIPS
272CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -xc /dev/null | \
273        egrep -vw '__GNUC_(|MINOR_|PATCHLEVEL_)_' | \
274        sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/")
275ifdef CONFIG_64BIT
276CHECKFLAGS              += -m64
277endif
278endif
279
280OBJCOPYFLAGS            += --remove-section=.reginfo
281
282head-y := arch/mips/kernel/head.o arch/mips/kernel/init_task.o
283
284libs-y                  += arch/mips/lib/
285
286# See arch/mips/Kbuild for content of core part of the kernel
287core-y += arch/mips/
288
289drivers-$(CONFIG_OPROFILE)      += arch/mips/oprofile/
290
291# suspend and hibernation support
292drivers-$(CONFIG_PM)    += arch/mips/power/
293
294ifdef CONFIG_LASAT
295rom.bin rom.sw: vmlinux
296        $(Q)$(MAKE) $(build)=arch/mips/lasat/image $@
297endif
298
299#
300# Some machines like the Indy need 32-bit ELF binaries for booting purposes.
301# Other need ECOFF, so we build a 32-bit ELF binary for them which we then
302# convert to ECOFF using elf2ecoff.
303#
304vmlinux.32: vmlinux
305        $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@
306
307
308#obj-$(CONFIG_KPROBES)          += kprobes.o
309
310#
311# The 64-bit ELF tools are pretty broken so at this time we generate 64-bit
312# ELF files from 32-bit files by conversion.
313#
314vmlinux.64: vmlinux
315        $(OBJCOPY) -O $(64bit-bfd) $(OBJCOPYFLAGS) $< $@
316
317all:    $(all-y)
318
319# boot
320vmlinux.bin vmlinux.ecoff vmlinux.srec: $(vmlinux-32) FORCE
321        $(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) arch/mips/boot/$@
322
323# boot/compressed
324vmlinuz vmlinuz.bin vmlinuz.ecoff vmlinuz.srec: $(vmlinux-32) FORCE
325        $(Q)$(MAKE) $(build)=arch/mips/boot/compressed \
326           VMLINUX_LOAD_ADDRESS=$(load-y) 32bit-bfd=$(32bit-bfd) $@
327
328
329CLEAN_FILES += vmlinux.32 vmlinux.64
330
331archprepare:
332ifdef CONFIG_MIPS32_N32
333        @echo '  Checking missing-syscalls for N32'
334        $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=n32"
335endif
336ifdef CONFIG_MIPS32_O32
337        @echo '  Checking missing-syscalls for O32'
338        $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=32"
339endif
340
341install:
342        $(Q)install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE)
343ifdef CONFIG_SYS_SUPPORTS_ZBOOT
344        $(Q)install -D -m 755 vmlinuz $(INSTALL_PATH)/vmlinuz-$(KERNELRELEASE)
345endif
346        $(Q)install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE)
347        $(Q)install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE)
348
349archclean:
350        $(Q)$(MAKE) $(clean)=arch/mips/boot
351        $(Q)$(MAKE) $(clean)=arch/mips/boot/compressed
352        $(Q)$(MAKE) $(clean)=arch/mips/lasat
353
354define archhelp
355        echo '  install              - install kernel into $(INSTALL_PATH)'
356        echo '  vmlinux.ecoff        - ECOFF boot image'
357        echo '  vmlinux.bin          - Raw binary boot image'
358        echo '  vmlinux.srec         - SREC boot image'
359        echo '  vmlinuz              - Compressed boot(zboot) image'
360        echo '  vmlinuz.ecoff        - ECOFF zboot image'
361        echo '  vmlinuz.bin          - Raw binary zboot image'
362        echo '  vmlinuz.srec         - SREC zboot image'
363        echo
364        echo '  These will be default as appropriate for a configured platform.'
365endef
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