kernel/Makefile

   1 #
   2 # Copyright (c) 2005 Martin Decky
   3 # All rights reserved.
   4 #
   5 # Redistribution and use in source and binary forms, with or without
   6 # modification, are permitted provided that the following conditions
   7 # are met:
   8 #
   9 # - Redistributions of source code must retain the above copyright
  10 #   notice, this list of conditions and the following disclaimer.
  11 # - Redistributions in binary form must reproduce the above copyright
  12 #   notice, this list of conditions and the following disclaimer in the
  13 #   documentation and/or other materials provided with the distribution.
  14 # - The name of the author may not be used to endorse or promote products
  15 #   derived from this software without specific prior written permission.
  16 #
  17 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18 # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19 # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20 # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21 # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22 # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26 # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27 #
  28
  29 ## Configuration
  30 #
  31
  32 ROOT_PATH = ..
  33
  34 VERSION_DEF = $(ROOT_PATH)/version
  35
  36 COMMON_MAKEFILE = $(ROOT_PATH)/Makefile.common
  37 COMMON_HEADER = $(ROOT_PATH)/common.h
  38 COMMON_HEADER_ARCH = arch/$(KARCH)/include/arch/common.h
  39
  40 CONFIG_MAKEFILE = $(ROOT_PATH)/Makefile.config
  41 CONFIG_HEADER = $(ROOT_PATH)/config.h
  42
  43 -include $(VERSION_DEF)
  44 -include $(COMMON_MAKEFILE)
  45 -include $(CONFIG_MAKEFILE)
  46
  47 ## Common names
  48 #
  49
  50 AGDEPEND = Makefile.ag.depend
  51 DEPEND = Makefile.depend
  52 DEPEND_PREV = $(DEPEND).prev
  53 RAW = kernel.raw
  54 BIN = kernel.bin
  55 MAP = kernel.map
  56 JOB = kernel.job
  57 MAP_PREV = $(MAP).prev
  58 DISASM = kernel.disasm
  59 DUMP = kernel.dump
  60 REAL_MAP = generic/src/debug/real_map
  61
  62 GENMAP = tools/genmap.py
  63 JOBFILE = $(ROOT_PATH)/tools/jobfile.py
  64
  65 LINK = arch/$(KARCH)/_link.ld
  66 EMPTY_MAP = generic/src/debug/empty_map.o
  67 SIZEOK_MAP = generic/src/debug/sizeok_map.o
  68
  69 .PHONY: all clean autogen_clean
  70
  71 all: $(VERSION_DEF) $(COMMON_MAKEFILE) $(COMMON_HEADER) $(CONFIG_MAKEFILE) $(CONFIG_HEADER) $(BIN) $(DISASM)
  72         -[ -f $(DEPEND) ] && cp -a $(DEPEND) $(DEPEND_PREV)
  73
  74 clean: autogen_clean
  75         rm -f $(DEPEND) $(DEPEND_PREV) $(RAW) $(BIN) $(MAP) $(JOB) $(MAP_PREV) $(DISASM) $(DUMP) $(REAL_MAP).* arch/*/_link.ld arch/*/include/arch/common.h
  76         find generic/src/ arch/*/src/ genarch/src/ test/ -name '*.o' -follow -exec rm '{}' \;
  77
  78 ## Common compiler flags
  79 #
  80
  81 INCLUDES = generic/include genarch/include arch/$(KARCH)/include ../abi/include
  82 INCLUDES_FLAGS = $(addprefix -I,$(INCLUDES))
  83
  84 ifeq ($(CONFIG_OPTIMIZE_FOR_SIZE),y)
  85         OPTIMIZATION = s
  86 else
  87         OPTIMIZATION = 3
  88 endif
  89
  90 DEFS = -DKERNEL -DRELEASE=$(RELEASE) "-DCOPYRIGHT=$(COPYRIGHT)" "-DNAME=$(NAME)" -D__$(BITS)_BITS__ -D__$(ENDIANESS)__
  91
  92 GCC_CFLAGS = $(INCLUDES_FLAGS) -O$(OPTIMIZATION) -imacros $(CONFIG_HEADER) \
  93         -fexec-charset=UTF-8 -fwide-exec-charset=UTF-32$(ENDIANESS) \
  94         -finput-charset=UTF-8 -ffreestanding -fno-builtin -nostdlib -nostdinc \
  95         -std=gnu99 -Wall -Wextra -Wno-unused-parameter -Wmissing-prototypes \
  96         -Werror-implicit-function-declaration -Wwrite-strings \
  97         -pipe
  98
  99 ICC_CFLAGS = $(INCLUDES_FLAGS) -O$(OPTIMIZATION) -imacros $(CONFIG_HEADER) \
 100         -ffreestanding -fno-builtin -nostdlib -nostdinc -Wall -Wmissing-prototypes \
 101         -Werror-implicit-function-declaration -wd170
 102
 103 # clang does not support following options but I am not sure whether
 104 # something won't break because of that:
 105 # -fexec-charset=UTF-8 -fwide-exec-charset=UTF-32$(ENDIANESS) -finput-charset=UTF-8
 106 CLANG_CFLAGS = $(INCLUDES_FLAGS) -O$(OPTIMIZATION) -imacros $(CONFIG_HEADER) \
 107         -ffreestanding -fno-builtin -nostdlib -nostdinc \
 108         -std=gnu99 -Wall -Werror -Wextra -Wno-unused-parameter -Wmissing-prototypes \
 109         -Werror-implicit-function-declaration -Wwrite-strings \
 110         -integrated-as -pipe -target $(CLANG_TARGET)
 111
 112 ifeq ($(CONFIG_DEBUG),y)
 113         GCC_CFLAGS += -Werror
 114         ICC_CFLAGS += -Werror
 115 endif
 116
 117 ifeq ($(CONFIG_LTO),y)
 118         GCC_CFLAGS += -flto
 119 endif
 120
 121 ifeq ($(CONFIG_LINE_DEBUG),y)
 122         GCC_CFLAGS += -g
 123         ICC_CFLAGS += -g
 124         CLANG_CFLAGS += -g
 125 endif
 126
 127 #
 128 # Mind the mutual ordering with the inclusion of the arch Makefile.inc.
 129 # AFLAGS and LFLAGS must be initialized before the inclusion.
 130 #
 131 AFLAGS = --fatal-warnings
 132 LFLAGS = -n -T $(LINK) -M --fatal-warnings
 133
 134 #
 135 # Mind the mutual ordering with the initialization of AFLAGS and LFLAGS.
 136 # The arch Makefile.inc must be included after the initialization.
 137 #
 138 -include arch/$(KARCH)/Makefile.inc
 139 -include genarch/Makefile.inc
 140 -include $(DEPEND)
 141 -include $(AGDEPEND)
 142
 143 ## The at-sign
 144 #
 145 # The $(ATSIGN) variable holds the ASCII character representing the at-sign
 146 # ('@') used in various $(AS) constructs (e.g. @progbits). On architectures that
 147 # don't use '@' for starting a comment, $(ATSIGN) is merely '@'. However, on
 148 # those that do use it for starting a comment (e.g. arm32), $(ATSIGN) must be
 149 # defined as the percentile-sign ('%') in the architecture-dependent
 150 # Makefile.inc.
 151 #
 152
 153 ATSIGN ?= @
 154
 155 ## Cross-platform assembly to start a symtab.data section
 156 #
 157
 158 SYMTAB_SECTION = .section symtab.data, \"a\", $(ATSIGN)progbits;
 159
 160 ## Compilation options
 161 #
 162
 163 ifeq ($(COMPILER),gcc_native)
 164         CFLAGS = $(GCC_CFLAGS)
 165         DEPEND_DEFS = $(DEFS) $(CONFIG_DEFS)
 166         INSTRUMENTATION = -finstrument-functions
 167 endif
 168
 169 ifeq ($(COMPILER),gcc_cross)
 170         CFLAGS = $(GCC_CFLAGS)
 171         DEPEND_DEFS = $(DEFS) $(CONFIG_DEFS)
 172         INSTRUMENTATION = -finstrument-functions
 173 endif
 174
 175 ifeq ($(COMPILER),gcc_helenos)
 176         CFLAGS = $(GCC_CFLAGS)
 177         DEPEND_DEFS = $(DEFS) $(CONFIG_DEFS)
 178         INSTRUMENTATION = -finstrument-functions
 179 endif
 180
 181 ifeq ($(COMPILER),icc)
 182         CFLAGS = $(ICC_CFLAGS)
 183         DEPEND_DEFS = $(DEFS) $(CONFIG_DEFS)
 184         INSTRUMENTATION =
 185 endif
 186
 187 ifeq ($(COMPILER),clang)
 188         CFLAGS = $(CLANG_CFLAGS)
 189         DEPEND_DEFS = $(DEFS) $(CONFIG_DEFS)
 190         INSTRUMENTATION =
 191 endif
 192
 193
 194 ## Generic kernel sources
 195 #
 196
 197 GENERIC_SOURCES = \
 198         generic/src/adt/avl.c \
 199         generic/src/adt/bitmap.c \
 200         generic/src/adt/btree.c \
 201         generic/src/adt/cht.c \
 202         generic/src/adt/hash_table.c \
 203         generic/src/adt/list.c \
 204         generic/src/console/chardev.c \
 205         generic/src/console/console.c \
 206         generic/src/console/prompt.c \
 207         generic/src/cpu/cpu.c \
 208         generic/src/cpu/cpu_mask.c \
 209         generic/src/ddi/ddi.c \
 210         generic/src/ddi/irq.c \
 211         generic/src/ddi/device.c \
 212         generic/src/debug/symtab.c \
 213         generic/src/debug/stacktrace.c \
 214         generic/src/debug/panic.c \
 215         generic/src/debug/debug.c \
 216         generic/src/interrupt/interrupt.c \
 217         generic/src/log/log.c \
 218         generic/src/main/main.c \
 219         generic/src/main/kinit.c \
 220         generic/src/main/uinit.c \
 221         generic/src/main/version.c \
 222         generic/src/main/shutdown.c \
 223         generic/src/proc/program.c \
 224         generic/src/proc/scheduler.c \
 225         generic/src/proc/thread.c \
 226         generic/src/proc/task.c \
 227         generic/src/proc/the.c \
 228         generic/src/syscall/syscall.c \
 229         generic/src/syscall/copy.c \
 230         generic/src/mm/km.c \
 231         generic/src/mm/reserve.c \
 232         generic/src/mm/frame.c \
 233         generic/src/mm/page.c \
 234         generic/src/mm/tlb.c \
 235         generic/src/mm/as.c \
 236         generic/src/mm/backend_anon.c \
 237         generic/src/mm/backend_elf.c \
 238         generic/src/mm/backend_phys.c \
 239         generic/src/mm/backend_user.c \
 240         generic/src/mm/slab.c \
 241         generic/src/lib/func.c \
 242         generic/src/lib/memstr.c \
 243         generic/src/lib/memfnc.c \
 244         generic/src/lib/sort.c \
 245         generic/src/lib/str.c \
 246         generic/src/lib/elf.c \
 247         generic/src/lib/ra.c \
 248         generic/src/lib/rd.c \
 249         generic/src/printf/printf_core.c \
 250         generic/src/printf/printf.c \
 251         generic/src/printf/snprintf.c \
 252         generic/src/printf/vprintf.c \
 253         generic/src/printf/vsnprintf.c \
 254         generic/src/time/clock.c \
 255         generic/src/time/timeout.c \
 256         generic/src/time/delay.c \
 257         generic/src/preempt/preemption.c \
 258         generic/src/synch/spinlock.c \
 259         generic/src/synch/condvar.c \
 260         generic/src/synch/mutex.c \
 261         generic/src/synch/semaphore.c \
 262         generic/src/synch/smc.c \
 263         generic/src/synch/smp_memory_barrier.c \
 264         generic/src/synch/waitq.c \
 265         generic/src/synch/futex.c \
 266         generic/src/synch/workqueue.c \
 267         generic/src/synch/rcu.c \
 268         generic/src/smp/ipi.c \
 269         generic/src/smp/smp.c \
 270         generic/src/smp/smp_call.c \
 271         generic/src/ipc/ipc.c \
 272         generic/src/ipc/sysipc.c \
 273         generic/src/ipc/sysipc_ops.c \
 274         generic/src/ipc/ops/clnestab.c \
 275         generic/src/ipc/ops/conctmeto.c \
 276         generic/src/ipc/ops/concttome.c \
 277         generic/src/ipc/ops/connclone.c \
 278         generic/src/ipc/ops/dataread.c \
 279         generic/src/ipc/ops/datawrite.c \
 280         generic/src/ipc/ops/debug.c \
 281         generic/src/ipc/ops/pagein.c \
 282         generic/src/ipc/ops/sharein.c \
 283         generic/src/ipc/ops/shareout.c \
 284         generic/src/ipc/ops/stchngath.c \
 285         generic/src/ipc/ipcrsc.c \
 286         generic/src/ipc/irq.c \
 287         generic/src/ipc/event.c \
 288         generic/src/security/perm.c \
 289         generic/src/sysinfo/sysinfo.c \
 290         generic/src/sysinfo/stats.c
 291
 292 ## Kernel console support
 293 #
 294
 295 ifeq ($(CONFIG_KCONSOLE),y)
 296 GENERIC_SOURCES += \
 297         generic/src/console/kconsole.c \
 298         generic/src/console/cmd.c
 299 endif
 300
 301 ## Udebug interface sources
 302 #
 303
 304 ifeq ($(CONFIG_UDEBUG),y)
 305 GENERIC_SOURCES += \
 306         generic/src/ipc/kbox.c \
 307         generic/src/udebug/udebug.c \
 308         generic/src/udebug/udebug_ops.c \
 309         generic/src/udebug/udebug_ipc.c
 310 endif
 311
 312 ## Test sources
 313 #
 314
 315 ifeq ($(CONFIG_TEST),y)
 316         CFLAGS += -Itest/
 317         GENERIC_SOURCES += \
 318                 test/test.c \
 319                 test/atomic/atomic1.c \
 320                 test/btree/btree1.c \
 321                 test/cht/cht1.c \
 322                 test/avltree/avltree1.c \
 323                 test/fault/fault1.c \
 324                 test/mm/falloc1.c \
 325                 test/mm/falloc2.c \
 326                 test/mm/mapping1.c \
 327                 test/mm/slab1.c \
 328                 test/mm/slab2.c \
 329                 test/synch/semaphore1.c \
 330                 test/synch/semaphore2.c \
 331                 test/synch/workqueue2.c \
 332                 test/synch/workqueue3.c \
 333                 test/synch/rcu1.c \
 334                 test/print/print1.c \
 335                 test/print/print2.c \
 336                 test/print/print3.c \
 337                 test/print/print4.c \
 338                 test/print/print5.c \
 339                 test/thread/thread1.c \
 340                 test/smpcall/smpcall1.c
 341
 342         ifeq ($(KARCH),mips32)
 343                 GENERIC_SOURCES += test/debug/mips1.c
 344         else
 345                 GENERIC_SOURCES += test/debug/mips1_skip.c
 346         endif
 347
 348         ifeq ($(KARCH),ia64)
 349                 GENERIC_SOURCES += test/mm/purge1.c
 350         else
 351                 GENERIC_SOURCES += test/mm/purge1_skip.c
 352         endif
 353
 354 endif
 355
 356 ## Sources where instrumentation is enabled
 357 #
 358
 359 ifeq ($(CONFIG_TRACE),y)
 360         INSTRUMENTED_SOURCES = \
 361                 generic/src/adt/btree.c \
 362                 generic/src/cpu/cpu.c \
 363                 generic/src/ddi/ddi.c \
 364                 generic/src/interrupt/interrupt.c \
 365                 generic/src/main/main.c \
 366                 generic/src/main/kinit.c \
 367                 generic/src/proc/the.c \
 368                 generic/src/mm/frame.c \
 369                 generic/src/mm/page.c \
 370                 generic/src/mm/tlb.c \
 371                 generic/src/mm/as.c \
 372                 generic/src/mm/slab.c \
 373                 generic/src/sysinfo/sysinfo.c \
 374                 generic/src/console/kconsole.c
 375 else
 376         INSTRUMENTED_SOURCES =
 377 endif
 378
 379 GENERIC_OBJECTS := $(addsuffix .o,$(basename $(GENERIC_SOURCES)))
 380 ARCH_OBJECTS := $(addsuffix .o,$(basename $(ARCH_SOURCES)))
 381 GENARCH_OBJECTS := $(addsuffix .o,$(basename $(GENARCH_SOURCES)))
 382
 383 GENARCH_AUTOGENS_H := $(addsuffix .h,$(basename $(GENARCH_AUTOGENS_AG)))
 384 GENARCH_AUTOGENS_PROBE_C := $(addsuffix .ag.probe.c,$(basename $(GENARCH_AUTOGENS_AG)))
 385 GENARCH_AUTOGENS_PROBE_S := $(addsuffix .ag.probe.s,$(basename $(GENARCH_AUTOGENS_AG)))
 386
 387 ARCH_AUTOGENS_H := $(addsuffix .h,$(basename $(ARCH_AUTOGENS_AG)))
 388 ARCH_AUTOGENS_PROBE_C := $(addsuffix .ag.probe.c,$(basename $(ARCH_AUTOGENS_AG)))
 389 ARCH_AUTOGENS_PROBE_S := $(addsuffix .ag.probe.s,$(basename $(ARCH_AUTOGENS_AG)))
 390
 391 AUTOGENS_H := $(ARCH_AUTOGENS_H) $(GENARCH_AUTOGENS_H)
 392 AUTOGENS_AG := $(ARCH_AUTOGENS_AG) $(GENARCH_AUTOGENS_AG)
 393
 394 LFLAGS_LTO := $(addprefix -Xlinker ,$(LFLAGS))
 395
 396 ifeq ($(CONFIG_SYMTAB),y)
 397         SYMTAB_OBJECTS := generic/src/debug/real_map.o
 398 else
 399         SYMTAB_OBJECTS :=
 400 endif
 401
 402 $(BIN): $(RAW)
 403         $(OBJCOPY) -O $(BFD) $< $@
 404
 405 $(DISASM): $(RAW)
 406 ifeq ($(CONFIG_LINE_DEBUG),y)
 407         $(OBJDUMP) -d -S $< > $@
 408 else
 409         $(OBJDUMP) -d $< > $@
 410 endif
 411
 412 $(RAW): $(LINK) $(ARCH_OBJECTS) $(GENARCH_OBJECTS) $(GENERIC_OBJECTS) $(SYMTAB_OBJECTS)
 413 ifeq ($(CONFIG_LTO),y)
 414         $(GCC) $(LFLAGS_LTO) -Xlinker -Map -Xlinker $(MAP) $(DEFS) $(GCC_CFLAGS) -o $@ $(ARCH_OBJECTS) $(GENARCH_OBJECTS) $(GENERIC_OBJECTS) $(EXTRA_OBJECTS) $(SYMTAB_OBJECTS)
 415 else
 416         $(LD) $(LFLAGS) -Map $(MAP) -o $@ $(ARCH_OBJECTS) $(GENARCH_OBJECTS) $(GENERIC_OBJECTS) $(EXTRA_OBJECTS) $(SYMTAB_OBJECTS)
 417 endif
 418 ifeq ($(CONFIG_STRIP_BINARIES),y)
 419         $(STRIP) $(RAW)
 420 endif
 421
 422 $(LINK): $(LINK).in $(DEPEND)
 423         $(CC) $(DEFS) $(CFLAGS) -D__ASM__ -D__LINKER__ -E -x c $< | grep -v "^\#" > $@
 424
 425 %.h: %.ag
 426         $(AUTOGEN) probe $< >$<.probe.c
 427         $(CC) $(DEFS) $(CFLAGS) -S -o $<.probe.s $<.probe.c
 428         $(AUTOGEN) generate $< <$<.probe.s >$@
 429
 430 %.o: %.S $(DEPEND)
 431         $(GCC) $(DEFS) $(GCC_CFLAGS) -D__ASM__ -c -o $@ $<
 432 ifeq ($(PRECHECK),y)
 433         $(JOBFILE) $(JOB) $< $@ as asm/preproc $(DEFS) $(GCC_CFLAGS) -D__ASM__
 434 endif
 435
 436 %.o: %.s $(DEPEND)
 437         $(AS) $(AFLAGS) -o $@ $<
 438 ifeq ($(PRECHECK),y)
 439         $(JOBFILE) $(JOB) $< $@ as asm $(DEFS) $(CFLAGS) $(EXTRA_FLAGS)
 440 endif
 441
 442 %.o: %.c $(DEPEND)
 443         $(CC) $(DEFS) $(CFLAGS) $(EXTRA_FLAGS) $(FPU_NO_CFLAGS) $(if $(findstring $<,$(INSTRUMENTED_SOURCES)),$(INSTRUMENTATION)) -c -o $@ $<
 444 ifeq ($(PRECHECK),y)
 445         $(JOBFILE) $(JOB) $< $@ cc core $(DEFS) $(CFLAGS) $(EXTRA_FLAGS) $(FPU_NO_CFLAGS)
 446 endif
 447
 448 $(REAL_MAP).o: $(REAL_MAP).bin
 449         echo "$(AS_PROLOG)""$(SYMTAB_SECTION)"" .incbin \"$<\"" | $(AS) $(AFLAGS) -o $@
 450
 451 $(REAL_MAP).bin: $(LINK) $(ARCH_OBJECTS) $(GENARCH_OBJECTS) $(GENERIC_OBJECTS)
 452         echo "$(AS_PROLOG)""$(SYMTAB_SECTION)" | $(AS) $(AFLAGS) -o $(EMPTY_MAP)
 453 ifeq ($(CONFIG_LTO),y)
 454         $(GCC) $(LFLAGS_LTO) -Xlinker -Map -Xlinker $(MAP_PREV) $(DEFS) $(GCC_CFLAGS) -o $@ $(ARCH_OBJECTS) $(GENARCH_OBJECTS) $(GENERIC_OBJECTS) $(EXTRA_OBJECTS) $(EMPTY_MAP)
 455 else
 456         $(LD) $(LFLAGS) -Map $(MAP_PREV) -o $@ $(ARCH_OBJECTS) $(GENARCH_OBJECTS) $(GENERIC_OBJECTS) $(EXTRA_OBJECTS) $(EMPTY_MAP)
 457 endif
 458         $(OBJDUMP) -t $(ARCH_OBJECTS) $(GENARCH_OBJECTS) $(GENERIC_OBJECTS) > $(DUMP)
 459         $(GENMAP) $(MAP_PREV) $(DUMP) $@
 460
 461         # Do it once again, this time to get correct even the symbols
 462         # on architectures that have bss after symtab
 463
 464         echo "$(AS_PROLOG)""$(SYMTAB_SECTION)"" .incbin \"$@\"" | $(AS) $(AFLAGS) -o $(SIZEOK_MAP)
 465 ifeq ($(CONFIG_LTO),y)
 466         $(GCC) $(LFLAGS_LTO) -Xlinker -Map -Xlinker $(MAP_PREV) $(DEFS) $(GCC_CFLAGS) -o $@ $(ARCH_OBJECTS) $(GENARCH_OBJECTS) $(GENERIC_OBJECTS) $(EXTRA_OBJECTS) $(SIZEOK_MAP)
 467 else
 468         $(LD) $(LFLAGS) -Map $(MAP_PREV) -o $@ $(ARCH_OBJECTS) $(GENARCH_OBJECTS) $(GENERIC_OBJECTS) $(EXTRA_OBJECTS) $(SIZEOK_MAP)
 469 endif
 470         $(OBJDUMP) -t $(ARCH_OBJECTS) $(GENARCH_OBJECTS) $(GENERIC_OBJECTS) > $(DUMP)
 471         $(GENMAP) $(MAP_PREV) $(DUMP) $@
 472
 473 $(AUTOGENS_H): $(AGDEPEND)
 474
 475 $(AGDEPEND): $(AUTOGENS_AG)
 476         echo "# DO NOT EDIT" >$@
 477         for g in $^; do \
 478                 h=`dirname $$g`/`basename $$g .ag`.h; \
 479                 for l in `$(AUTOGEN) depend $$g`; do \
 480                         echo "$$h: $$l" >>$@; \
 481                 done \
 482         done
 483
 484 $(DEPEND): $(COMMON_HEADER_ARCH) $(AUTOGENS_H)
 485         makedepend -f - -- $(DEPEND_DEFS) $(CFLAGS) -- $(ARCH_SOURCES) $(GENARCH_SOURCES) $(GENERIC_SOURCES) > $@ 2> /dev/null
 486         -[ -f $(DEPEND_PREV) ] && diff -q $(DEPEND_PREV) $@ && mv -f $(DEPEND_PREV) $@
 487
 488 $(COMMON_HEADER_ARCH): $(COMMON_HEADER)
 489         ln -sfn ../../../../$< $@
 490
 491 autogen_clean:
 492         -rm $(ARCH_AUTOGENS_H) $(ARCH_AUTOGENS_PROBE_C) $(ARCH_AUTOGENS_PROBE_S)
 493         -rm $(GENARCH_AUTOGENS_H) $(GENARCH_AUTOGENS_PROBE_C) $(GENARCH_AUTOGENS_PROBE_S)
 494         -rm $(AGDEPEND)