Makefile

   1 VERSION = 2
   2 PATCHLEVEL = 0
   3 SUBLEVEL = 16
   4
   5 ARCH = i386
   6
   7 #
   8 # For SMP kernels, set this. We don't want to have this in the config file
   9 # because it makes re-config very ugly and too many fundamental files depend
  10 # on "CONFIG_SMP"
  11 #
  12 # NOTE! SMP is experimental. See the file Documentation/SMP.txt
  13 #
  14 # SMP = 1
  15 #
  16 # SMP profiling options
  17 # SMP_PROF = 1
  18
  19 .EXPORT_ALL_VARIABLES:
  20
  21 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
  22           else if [ -x /bin/bash ]; then echo /bin/bash; \
  23           else echo sh; fi ; fi)
  24 TOPDIR  := $(shell if [ "$$PWD" != "" ]; then echo $$PWD; else pwd; fi)
  25
  26 HPATH           = $(TOPDIR)/include
  27
  28 HOSTCC          =gcc -I$(HPATH)
  29 HOSTCFLAGS      =
  30
  31 CROSS_COMPILE   =
  32
  33 AS      =$(CROSS_COMPILE)as
  34 LD      =$(CROSS_COMPILE)ld
  35 CC      =$(CROSS_COMPILE)gcc -D__KERNEL__ -I$(HPATH)
  36 CPP     =$(CC) -E
  37 AR      =$(CROSS_COMPILE)ar
  38 NM      =$(CROSS_COMPILE)nm
  39 STRIP   =$(CROSS_COMPILE)strip
  40 MAKE    =make
  41 AWK     =gawk
  42
  43 all:    do-it-all
  44
  45 #
  46 # Make "config" the default target if there is no configuration file or
  47 # "depend" the target if there is no top-level dependency information.
  48 #
  49 ifeq (.config,$(wildcard .config))
  50 include .config
  51 ifeq (.depend,$(wildcard .depend))
  52 include .depend
  53 do-it-all:      Version vmlinux
  54 else
  55 CONFIGURATION = depend
  56 do-it-all:      depend
  57 endif
  58 else
  59 CONFIGURATION = config
  60 do-it-all:      config
  61 endif
  62
  63 #
  64 # ROOT_DEV specifies the default root-device when making the image.
  65 # This can be either FLOPPY, CURRENT, /dev/xxxx or empty, in which case
  66 # the default of FLOPPY is used by 'build'.
  67 #
  68
  69 ROOT_DEV = CURRENT
  70
  71 #
  72 # INSTALL_PATH specifies where to place the updated kernel and system map
  73 # images.  Uncomment if you want to place them anywhere other than root.
  74
  75 #INSTALL_PATH=/boot
  76
  77 #
  78 # If you want to preset the SVGA mode, uncomment the next line and
  79 # set SVGA_MODE to whatever number you want.
  80 # Set it to -DSVGA_MODE=NORMAL_VGA if you just want the EGA/VGA mode.
  81 # The number is the same as you would ordinarily press at bootup.
  82 #
  83
  84 SVGA_MODE=      -DSVGA_MODE=NORMAL_VGA
  85
  86 #
  87 # standard CFLAGS
  88 #
  89
  90 CFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -fno-strength-reduce
  91
  92 ifdef CONFIG_CPP
  93 CFLAGS := $(CFLAGS) -x c++
  94 endif
  95
  96 ifdef SMP
  97 CFLAGS += -D__SMP__
  98 AFLAGS += -D__SMP__
  99
 100 ifdef SMP_PROF
 101 CFLAGS += -D__SMP_PROF__
 102 AFLAGS += -D__SMP_PROF__
 103 endif
 104 endif
 105
 106 #
 107 # if you want the ram-disk device, define this to be the
 108 # size in blocks.
 109 #
 110
 111 #RAMDISK = -DRAMDISK=512
 112
 113 # Include the make variables (CC, etc...)
 114 #
 115
 116 ARCHIVES        =kernel/kernel.o mm/mm.o fs/fs.o ipc/ipc.o net/network.a
 117 FILESYSTEMS     =fs/filesystems.a
 118 DRIVERS         =drivers/block/block.a \
 119                  drivers/char/char.a
 120 LIBS            =$(TOPDIR)/lib/lib.a
 121 SUBDIRS         =kernel drivers mm fs net ipc lib
 122
 123 ifeq ($(CONFIG_ISDN),y)
 124 DRIVERS := $(DRIVERS) drivers/isdn/isdn.a
 125 endif
 126
 127 DRIVERS := $(DRIVERS) drivers/net/net.a
 128
 129 ifdef CONFIG_CD_NO_IDESCSI
 130 DRIVERS := $(DRIVERS) drivers/cdrom/cdrom.a
 131 endif
 132
 133 ifeq ($(CONFIG_SCSI),y)
 134 DRIVERS := $(DRIVERS) drivers/scsi/scsi.a
 135 endif
 136
 137 ifeq ($(CONFIG_SOUND),y)
 138 DRIVERS := $(DRIVERS) drivers/sound/sound.a
 139 endif
 140
 141 ifdef CONFIG_PCI
 142 DRIVERS := $(DRIVERS) drivers/pci/pci.a
 143 endif
 144
 145 ifdef CONFIG_SBUS
 146 DRIVERS := $(DRIVERS) drivers/sbus/sbus.a
 147 endif
 148
 149 include arch/$(ARCH)/Makefile
 150
 151 ifdef SMP
 152
 153 .S.s:
 154         $(CC) -D__ASSEMBLY__ $(AFLAGS) -traditional -E -o $*.s $<
 155 .S.o:
 156         $(CC) -D__ASSEMBLY__ $(AFLAGS) -traditional -c -o $*.o $<
 157
 158 else
 159
 160 .S.s:
 161         $(CC) -D__ASSEMBLY__ -traditional -E -o $*.s $<
 162 .S.o:
 163         $(CC) -D__ASSEMBLY__ -traditional -c -o $*.o $<
 164
 165 endif
 166
 167 Version: dummy
 168         @rm -f include/linux/compile.h
 169
 170 boot: vmlinux
 171         @$(MAKE) -C arch/$(ARCH)/boot
 172
 173 vmlinux: $(CONFIGURATION) init/main.o init/version.o linuxsubdirs
 174         $(LD) $(LINKFLAGS) $(HEAD) init/main.o init/version.o \
 175                 $(ARCHIVES) \
 176                 $(FILESYSTEMS) \
 177                 $(DRIVERS) \
 178                 $(LIBS) -o vmlinux
 179         $(NM) vmlinux | grep -v '\(compiled\)\|\(\.o$$\)\|\( a \)' | sort > System.map
 180
 181 symlinks:
 182         rm -f include/asm
 183         ( cd include ; ln -sf asm-$(ARCH) asm)
 184
 185 oldconfig: symlinks
 186         $(CONFIG_SHELL) scripts/Configure -d arch/$(ARCH)/config.in
 187
 188 xconfig: symlinks
 189         $(MAKE) -C scripts kconfig.tk
 190         wish -f scripts/kconfig.tk
 191
 192 menuconfig: include/linux/version.h symlinks
 193         $(MAKE) -C scripts/lxdialog all
 194         $(CONFIG_SHELL) scripts/Menuconfig arch/$(ARCH)/config.in
 195
 196 config: symlinks
 197         $(CONFIG_SHELL) scripts/Configure arch/$(ARCH)/config.in
 198
 199 linuxsubdirs: dummy
 200         set -e; for i in $(SUBDIRS); do $(MAKE) -C $$i; done
 201
 202 $(TOPDIR)/include/linux/version.h: include/linux/version.h
 203 $(TOPDIR)/include/linux/compile.h: include/linux/compile.h
 204
 205 newversion:
 206         @if [ ! -f .version ]; then \
 207                 echo 1 > .version; \
 208         else \
 209                 expr 0`cat .version` + 1 > .version; \
 210         fi
 211
 212 include/linux/compile.h: $(CONFIGURATION) include/linux/version.h newversion
 213         @if [ -f .name ]; then \
 214            echo \#define UTS_VERSION \"\#`cat .version`-`cat .name` `date`\"; \
 215          else \
 216            echo \#define UTS_VERSION \"\#`cat .version` `date`\";  \
 217          fi >> .ver
 218         @echo \#define LINUX_COMPILE_TIME \"`date +%T`\" >> .ver
 219         @echo \#define LINUX_COMPILE_BY \"`whoami`\" >> .ver
 220         @echo \#define LINUX_COMPILE_HOST \"`hostname`\" >> .ver
 221         @if [ -x /bin/dnsdomainname ]; then \
 222            echo \#define LINUX_COMPILE_DOMAIN \"`dnsdomainname`\"; \
 223          elif [ -x /bin/domainname ]; then \
 224            echo \#define LINUX_COMPILE_DOMAIN \"`domainname`\"; \
 225          else \
 226            echo \#define LINUX_COMPILE_DOMAIN ; \
 227          fi >> .ver
 228         @echo \#define LINUX_COMPILER \"`$(CC) -v 2>&1 | tail -1`\" >> .ver
 229         @mv -f .ver $@
 230
 231 include/linux/version.h: ./Makefile
 232         @echo \#define UTS_RELEASE \"$(VERSION).$(PATCHLEVEL).$(SUBLEVEL)\" > .ver
 233         @echo \#define LINUX_VERSION_CODE `expr $(VERSION) \\* 65536 + $(PATCHLEVEL) \\* 256 + $(SUBLEVEL)` >> .ver
 234         @mv -f .ver $@
 235
 236 init/version.o: init/version.c include/linux/compile.h
 237         $(CC) $(CFLAGS) -DUTS_MACHINE='"$(ARCH)"' -c -o init/version.o init/version.c
 238
 239 init/main.o: init/main.c
 240         $(CC) $(CFLAGS) $(PROFILING) -c -o $*.o $<
 241
 242 fs: dummy
 243         $(MAKE) linuxsubdirs SUBDIRS=fs
 244
 245 lib: dummy
 246         $(MAKE) linuxsubdirs SUBDIRS=lib
 247
 248 mm: dummy
 249         $(MAKE) linuxsubdirs SUBDIRS=mm
 250
 251 ipc: dummy
 252         $(MAKE) linuxsubdirs SUBDIRS=ipc
 253
 254 kernel: dummy
 255         $(MAKE) linuxsubdirs SUBDIRS=kernel
 256
 257 drivers: dummy
 258         $(MAKE) linuxsubdirs SUBDIRS=drivers
 259
 260 net: dummy
 261         $(MAKE) linuxsubdirs SUBDIRS=net
 262
 263 MODFLAGS = -DMODULE
 264 ifdef CONFIG_MODULES
 265 ifdef CONFIG_MODVERSIONS
 266 MODFLAGS += -DMODVERSIONS -include $(HPATH)/linux/modversions.h
 267 endif
 268
 269 modules: include/linux/version.h
 270         @set -e; \
 271         for i in $(SUBDIRS); \
 272         do $(MAKE) -C $$i CFLAGS="$(CFLAGS) $(MODFLAGS)" MAKING_MODULES=1 modules; \
 273         done
 274
 275 modules_install:
 276         @( \
 277         MODLIB=/lib/modules/$(VERSION).$(PATCHLEVEL).$(SUBLEVEL); \
 278         cd modules; \
 279         MODULES=""; \
 280         inst_mod() { These="`cat $$1`"; MODULES="$$MODULES $$These"; \
 281                 mkdir -p $$MODLIB/$$2; cp -p $$These $$MODLIB/$$2; \
 282                 echo Installing modules under $$MODLIB/$$2; \
 283         }; \
 284         \
 285         if [ -f BLOCK_MODULES ]; then inst_mod BLOCK_MODULES block; fi; \
 286         if [ -f NET_MODULES   ]; then inst_mod NET_MODULES   net;   fi; \
 287         if [ -f IPV4_MODULES  ]; then inst_mod IPV4_MODULES  ipv4;  fi; \
 288         if [ -f SCSI_MODULES  ]; then inst_mod SCSI_MODULES  scsi;  fi; \
 289         if [ -f FS_MODULES    ]; then inst_mod FS_MODULES    fs;    fi; \
 290         if [ -f CDROM_MODULES ]; then inst_mod CDROM_MODULES cdrom; fi; \
 291         \
 292         ls *.o > .allmods; \
 293         echo $$MODULES | tr ' ' '\n' | sort | comm -23 .allmods - > .misc; \
 294         if [ -s .misc ]; then inst_mod .misc misc; fi; \
 295         rm -f .misc .allmods; \
 296         )
 297
 298 # modules disabled....
 299
 300 else
 301 modules modules_install: dummy
 302         @echo
 303         @echo "The present kernel configuration has modules disabled."
 304         @echo "Type 'make config' and enable loadable module support."
 305         @echo "Then build a kernel with module support enabled."
 306         @echo
 307         @exit 1
 308 endif
 309
 310 clean:  archclean
 311         rm -f kernel/ksyms.lst include/linux/compile.h
 312         rm -f core `find . -name '*.[oas]' ! -regex '.*lxdialog/.*' -print`
 313         rm -f core `find . -type f -name 'core' -print`
 314         rm -f vmlinux System.map
 315         rm -f .tmp* drivers/sound/configure
 316         rm -fr modules/*
 317         rm -f submenu*
 318
 319 mrproper: clean
 320         rm -f include/linux/autoconf.h include/linux/version.h
 321         rm -f drivers/sound/local.h drivers/sound/.defines
 322         rm -f drivers/scsi/aic7xxx_asm drivers/scsi/aic7xxx_seq.h
 323         rm -f drivers/char/uni_hash.tbl drivers/char/conmakehash
 324         rm -f .version .config* config.in config.old
 325         rm -f scripts/tkparse scripts/kconfig.tk scripts/kconfig.tmp
 326         rm -f scripts/lxdialog/*.o scripts/lxdialog/lxdialog
 327         rm -f .menuconfig .menuconfig.log
 328         rm -f include/asm
 329         rm -f .depend `find . -name .depend -print`
 330         rm -f .hdepend
 331         rm -f $(TOPDIR)/include/linux/modversions.h
 332         rm -f $(TOPDIR)/include/linux/modules/*
 333
 334
 335 distclean: mrproper
 336         rm -f core `find . \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
 337                 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
 338                 -o -name '.*.rej' -o -name '.SUMS' -o -size 0 \) -print` TAGS
 339
 340 backup: mrproper
 341         cd .. && tar cf - linux/ | gzip -9 > backup.gz
 342         sync
 343
 344 sums:
 345         find . -type f -print | sort | xargs sum > .SUMS
 346
 347 dep-files: archdep .hdepend include/linux/version.h
 348         $(AWK) -f scripts/depend.awk init/*.c > .tmpdepend
 349         set -e; for i in $(SUBDIRS); do $(MAKE) -C $$i fastdep; done
 350         mv .tmpdepend .depend
 351
 352 MODVERFILE :=
 353
 354 ifdef CONFIG_MODVERSIONS
 355 MODVERFILE := $(TOPDIR)/include/linux/modversions.h
 356 endif
 357
 358 depend dep: dep-files $(MODVERFILE)
 359
 360 ifdef CONFIGURATION
 361 ..$(CONFIGURATION):
 362         @echo
 363         @echo "You have a bad or nonexistent" .$(CONFIGURATION) ": running 'make" $(CONFIGURATION)"'"
 364         @echo
 365         $(MAKE) $(CONFIGURATION)
 366         @echo
 367         @echo "Successful. Try re-making (ignore the error that follows)"
 368         @echo
 369         exit 1
 370
 371 #dummy: ..$(CONFIGURATION)
 372 dummy:
 373
 374 else
 375
 376 dummy:
 377
 378 endif
 379
 380 include Rules.make
 381
 382 #
 383 # This generates dependencies for the .h files.
 384 #
 385
 386 .hdepend: dummy
 387         rm -f $@
 388         $(AWK) -f scripts/depend.awk `find $(HPATH) -name \*.h ! -name modversions.h -print` > .$@
 389         mv .$@ $@