newlib/configure.host

   1 # configure.host
   2
   3 # This shell script handles all host based configuration for newlib.
   4 # It sets various shell variables based on the the host and the
   5 # configuration options.  You can modify this shell script without
   6 # needing to rerun autoconf.
   7
   8 # This shell script should be invoked as
   9 #   . configure.host
  10 # If it encounters an error, it will exit with a message.
  11
  12 # FIXME: This script is too complicated.  It does things in too many
  13 # different ways.  This was taken from the old Cygnus configure script
  14 # with only minor changes.  It should be cleaned up.
  15
  16 # FIXME: The general approach of picking and choosing which
  17 # directories to configure, other than machine_dir and sys_dir, is
  18 # potentially confusing.
  19
  20 # It uses the following shell variables:
  21 #   host                The configuration host
  22 #   host_cpu            The configuration host CPU
  23 #   newlib_mb           --enable-newlib-mb ("yes", "no")
  24 #   target_optspace     --enable-target-optspace ("yes", "no", "")
  25 #   newlib_multithread  --enable-newlib-multithread ("yes", "no", "yes")
  26 #   newlib_elix_level   --enable-newlib-elix-level ("1","2","3","4") ("4")
  27 #   newlib_io_long_long --enable-newlib-io-long-long ("yes", "no", "")
  28 #   newlib_io_long_double --enable-newlib-io-long-double ("yes", "no", "")
  29
  30 # It sets the following shell variables:
  31 #   newlib_cflags       Special CFLAGS to use when building
  32 #   machine_dir         Subdirectory of libc/machine to configure
  33 #   sys_dir             Subdirectory of libc/sys to configure
  34 #   have_sys_mach_dir   Is there a machine subdirectory in sys subdirectory
  35 #   posix_dir           "posix" to build libc/posix, "" otherwise
  36 #   signal_dir          "signal" to build libc/signal, "" otherwise
  37 #   stdio64_dir         "stdio64" to build libc/stdio64, "" otherwise
  38 #   syscall_dir         "syscalls" to build libc/syscalls, "" otherwise
  39 #   unix_dir            "unix" to build libc/unix, "" otherwise
  40 #   use_libtool         flag: use libtool to build newlib?
  41 #   aext                library extension - needed for libtool support
  42 #   oext                object file extension - needed for libtool support
  43 #   lpfx                library object prefix - generated when no libtool
  44 #   crt1                name of crt1 object if one is provided
  45 #   crt1_dir            directory where crt1 object is found
  46 #   have_crt0           "yes"/"no" if crt0 is/isn't provided.
  47 #                       "" if crt0 is provided when sys_dir is set
  48
  49 newlib_cflags=
  50 libm_machine_dir=
  51 machine_dir=
  52 sys_dir=
  53 posix_dir=
  54 signal_dir=signal
  55 stdio64_dir=
  56 syscall_dir=
  57 unix_dir=
  58 mach_add_setjmp=
  59 crt1=
  60 crt1_dir=
  61 have_crt0=
  62 use_libtool=no
  63 have_sys_mach_dir=no
  64 default_newlib_io_long_long=no
  65 default_newlib_io_long_double=no
  66 default_newlib_io_pos_args=no
  67 default_newlib_atexit_dynamic_alloc=yes
  68 aext=a
  69 oext=o
  70 lpfx="lib_a-"
  71
  72 case "${target_optspace}:${host}" in
  73   yes:*)
  74     newlib_cflags="${newlib_cflags} -Os"
  75     ;;
  76   :m32r-* | :d10v-* | :d30v-* | :avr-* | :m32c-* )
  77     newlib_cflags="${newlib_cflags} -Os"
  78     ;;
  79   no:* | :*)
  80     newlib_cflags="${newlib_cflags} -O2"
  81     ;;
  82 esac
  83
  84 # Get the source directories to use for the CPU type.
  85 # machine_dir should supply CPU dependent routines, such as setjmp.
  86 # newlib_cflags is passed to gcc when compiling.
  87 # THIS TABLE IS ALPHA SORTED.  KEEP IT THAT WAY.
  88
  89 case "${host_cpu}" in
  90   a29k)
  91         machine_dir=a29k
  92         ;;
  93   arc)
  94         machine_dir=
  95         ;;
  96   arm)
  97         machine_dir=arm
  98         ;;
  99   avr*)
 100         newlib_cflags="${newlib_cflags} -DPREFER_SIZE_OVER_SPEED -mcall-prologues"
 101         ;;
 102   cris | crisv32)
 103         machine_dir=cris
 104         ;;
 105   crx*)
 106         machine_dir=crx
 107         ;;
 108   d10v*)
 109         machine_dir=d10v
 110         ;;
 111   d30v*)
 112         machine_dir=d30v
 113         ;;
 114   ep9312)
 115         machine_dir=arm
 116         ;;
 117   fr30)
 118         machine_dir=fr30
 119         ;;
 120   frv)
 121         machine_dir=frv
 122         ;;
 123   h8300)
 124         machine_dir=h8300
 125         ;;
 126   h8500)
 127         machine_dir=h8500
 128         ;;
 129   hppa*)
 130         machine_dir=hppa
 131         ;;
 132   i960)
 133         machine_dir=i960
 134         ;;
 135   i[34567]86)
 136         # Don't use for these since they provide their own setjmp.
 137         case ${host} in
 138         *-*-sco* | *-*-cygwin*)
 139                 libm_machine_dir=i386
 140                 machine_dir=i386
 141                 ;;
 142         *)
 143                 libm_machine_dir=i386
 144                 machine_dir=i386
 145                 mach_add_setjmp=true
 146                 ;;
 147         esac
 148         ;;
 149   ia64*)
 150         ;;
 151   iq2000)
 152         machine_dir=iq2000
 153         ;;
 154   m32c)
 155         machine_dir=m32c
 156         newlib_cflags="${newlib_cflags} -DPREFER_SIZE_OVER_SPEED -DABORT_PROVIDED -DSMALL_MEMORY"
 157         ;;
 158
 159   m32r*)
 160         machine_dir=m32r
 161         ;;
 162
 163   m68hc11|m6811|m68hc12|m6812)
 164         machine_dir=m68hc11
 165         newlib_cflags="-DPREFER_SIZE_OVER_SPEED -Os -mrelax"
 166         CFLAGS="-g -Os"
 167         ;;
 168
 169   m68*)
 170         machine_dir=m68k
 171         newlib_cflags="${newlib_cflags} -DCOMPACT_CTYPE"
 172         ;;
 173   m88k)
 174         machine_dir=m88k
 175         newlib_cflags="${newlib_cflags} -m88000"
 176         ;;
 177   m88110)
 178         machine_dir=m88k
 179         newlib_cflags="${newlib_cflags} -m88110"
 180         ;;
 181   mcore)
 182         ;;
 183   mips*)
 184         machine_dir=mips
 185         ;;
 186   mmix)
 187         ;;
 188   mn10200)
 189         machine_dir=mn10200
 190         ;;
 191   mn10300)
 192         default_newlib_io_long_long="yes"
 193         machine_dir=mn10300
 194         ;;
 195   mt*)
 196         machine_dir=mt
 197         ;;
 198   or16)
 199         ;;
 200   or32)
 201         ;;
 202   powerpc*)
 203         machine_dir=powerpc
 204         ;;
 205   sh | sh64)
 206         machine_dir=sh
 207         ;;
 208   sparc*)
 209         machine_dir=sparc
 210         # FIXME: Might wish to make MALLOC_ALIGNMENT more generic.
 211         newlib_cflags="${newlib_cflags} -DMALLOC_ALIGNMENT=8"
 212         ;;
 213   strongarm)
 214         machine_dir=arm
 215         ;;
 216   xscale)
 217         machine_dir=xscale
 218         ;;
 219   thumb)
 220         machine_dir=arm
 221         ;;
 222   tic4x|c4x)
 223         machine_dir=tic4x
 224         ;;
 225   tic80*)
 226         machine_dir=tic80
 227         ;;
 228   v70)
 229         ;;
 230   v810)
 231         ;;
 232   v850)
 233         machine_dir=v850
 234         newlib_cflags="${newlib_cflags} -DPREFER_SIZE_OVER_SPEED -mv850 "
 235         ;;
 236   v850e)
 237         machine_dir=v850
 238         newlib_cflags="${newlib_cflags} -DPREFER_SIZE_OVER_SPEED "
 239         ;;
 240   w65*)
 241         machine_dir=w65
 242         ;;
 243   xstormy16)
 244         machine_dir=xstormy16
 245         newlib_cflags="${newlib_cflags} -DMALLOC_PROVIDED"
 246         newlib_cflags="${newlib_cflags} -DPREFER_SIZE_OVER_SPEED"
 247         ;;
 248   z8k)
 249         machine_dir=z8k
 250         ;;
 251   *)
 252         echo '***' "Newlib does not support CPU ${host_cpu}" 1>&2
 253         exit 1
 254         ;;
 255 esac
 256
 257 # Disable thread support if requested.
 258
 259 if [ "${newlib_multithread}" = "no" ] ; then
 260         newlib_cflags="${newlib_cflags} -D__SINGLE_THREAD__"
 261 fi
 262
 263 # Disable syscall support if requested.
 264
 265 if [ "${newlib_may_supply_syscalls}" = "no" ] ; then
 266         newlib_cflags="${newlib_cflags} -D__NO_SYSCALLS__"
 267 fi
 268
 269 # Enable multibyte support if requested or it is defaulted
 270 # for target.
 271
 272 if [ "x${newlib_mb}" = "x" ]; then
 273         case "${host}" in
 274           i[34567]86-pc-linux-*|*-*-cygwin*)
 275                 newlib_mb=yes
 276                 ;;
 277         esac
 278 fi
 279
 280 # Disable printf/scanf floating-point support if requested.
 281
 282 if [ "${newlib_io_float}" = "no" ] ; then
 283         newlib_cflags="${newlib_cflags} -DNO_FLOATING_POINT"
 284 fi
 285
 286 # Verify if shared newlib support is allowed and set appropriate variables
 287 # We don't want to use libtool for platforms that we are not going to
 288 # support shared libraries.  This is because it adds executable tests which
 289 # we don't want for most embedded platforms.
 290 case "${host}" in
 291   i[34567]86-pc-linux-*)
 292     use_libtool=yes
 293     have_sys_mach_dir=yes
 294     stdio64_dir=stdio64
 295     oext=lo
 296     lpfx=
 297     aext=la ;;
 298   *) ;; #shared library not supported for ${host}
 299 esac
 300
 301 # Get the source directories to use for the host.  unix_dir is set
 302 # to unix to get some standard Unix routines.  posix_dir is set to get some
 303 # standard Posix routines.  sys_dir should supply system dependent routines
 304 # including crt0.
 305 # THIS TABLE IS ALPHA SORTED.  KEEP IT THAT WAY.
 306
 307 case "${host}" in
 308   *-*-cygwin*)
 309         posix_dir=posix
 310         stdio64_dir=stdio64
 311         ;;
 312   *-*-netware*)
 313         signal_dir=
 314         sys_dir=netware
 315         ;;
 316   *-*-rtems*)                   # generic RTEMS support
 317         sys_dir=rtems
 318         # RTEMS POSIX support is all inside RTEMS
 319         ;;
 320   a29k-*-*)
 321         sys_dir=a29khif
 322         signal_dir=
 323         ;;
 324   arc-*-*)
 325         sys_dir=arc
 326         ;;
 327   arm-*-*)
 328         sys_dir=arm
 329         if [ "x${newlib_may_supply_syscalls}" = "xno" ] ; then
 330           have_crt0="no"
 331         fi
 332         ;;
 333   crx*)
 334         sys_dir=
 335         ;;
 336   d10v*)
 337         sys_dir=d10v
 338         ;;
 339   d30v*)
 340         sys_dir=
 341         ;;
 342   ep9312-*-*)
 343         sys_dir=arm
 344         if [ "x${newlib_may_supply_syscalls}" = "xno" ] ; then
 345           have_crt0="no"
 346         fi
 347         ;;
 348   frv*)
 349         sys_dir=
 350         ;;
 351   h8300-*-hms*)
 352         sys_dir=h8300hms
 353         ;;
 354   h8300-*-elf*)
 355         sys_dir=h8300hms
 356         ;;
 357   h8300-*-coff*)
 358         sys_dir=h8300hms
 359         ;;
 360   h8300-*-xray*)
 361         sys_dir=h8300xray
 362         ;;
 363   h8500-*-hms*)
 364         sys_dir=h8500hms
 365         ;;
 366   h8500-*-elf*)
 367         sys_dir=h8500hms
 368         ;;
 369   i[34567]86-*-rdos*)
 370         sys_dir=rdos
 371         newlib_cflags="${newlib_cflags} -DMISSING_SYSCALL_NAMES"
 372         ;;
 373   i[34567]86-*-sco*)
 374         sys_dir=sysvi386
 375         unix_dir=unix
 376         ;;
 377   i[34567]86-pc-linux-*)
 378         sys_dir=linux
 379         unix_dir=unix
 380         posix_dir=posix
 381         crt1=crt1.o
 382         crt1_dir=libc/sys/${sys_dir}
 383         gcc_dir=`gcc -print-search-dirs | awk '/^install:/{print $2}'`
 384         default_newlib_io_long_double="yes"
 385         default_newlib_io_long_long="yes"
 386         default_newlib_io_pos_args="yes"
 387         #newlib_cflags="${newlib_cflags} -Werror" # DEBUGGING ONLY;BREAKS BUILD
 388         newlib_cflags="${newlib_cflags} -Wall"
 389         newlib_cflags="${newlib_cflags} -D_I386MACH_ALLOW_HW_INTERRUPTS"
 390         newlib_cflags="${newlib_cflags} -DHAVE_FCNTL"
 391         # --- Required when building a shared library ------------------------
 392         newlib_cflags="${newlib_cflags} -fPIC -D_I386MACH_NEED_SOTYPE_FUNCTION"
 393         # --- The three lines below are optional ------------------------------
 394         ##newlib_cflags="${newlib_cflags} -nostdinc"
 395         ##newlib_cflags="${newlib_cflags} -I`newlib-flags --kernel-dir`/include"
 396         ##newlib_cflags="${newlib_cflags} -idirafter ${gcc_dir}include"
 397         ;;
 398
 399   m68hc11-*-*|m6811-*-*|m6812-*-*|m68hc12-*-*)
 400         ;;
 401
 402   m68k-sun-sunos*)
 403         unix_dir=unix
 404         ;;
 405   m8*-bug-*)
 406         sys_dir=m88kbug
 407         ;;
 408   mips*-dec-*)
 409         sys_dir=decstation
 410         ;;
 411   mmix-knuth-mmixware)
 412         sys_dir=mmixware
 413         ;;
 414   powerpcle-*-pe)
 415         posix_dir=posix
 416         ;;
 417   sh*-*)
 418         sys_dir=sh
 419         ;;
 420   sparc-sun-sunos*)
 421         sys_dir=sun4
 422         unix_dir=unix
 423         ;;
 424   sparc64*)
 425         sys_dir=sparc64
 426         unix_dir=unix
 427         ;;
 428   strongarm-*-*)
 429         sys_dir=arm
 430         if [ "x${newlib_may_supply_syscalls}" = "xno" ] ; then
 431           have_crt0="no"
 432         fi
 433         ;;
 434   thumb-*-*)
 435         sys_dir=arm
 436         if [ "x${newlib_may_supply_syscalls}" = "xno" ] ; then
 437           have_crt0="no"
 438         fi
 439         ;;
 440   tic80*)
 441         sys_dir=tic80
 442         ;;
 443   v70-nec-*)
 444         sys_dir=sysvnecv70
 445         ;;
 446   v810-*-*)
 447         sys_dir=sysnec810
 448         ;;
 449   v850-*-*)
 450         sys_dir=sysnecv850
 451         ;;
 452   v850e-*-*)
 453         sys_dir=sysnecv850
 454         ;;
 455   v850ea-*-*)
 456         sys_dir=sysnecv850
 457         ;;
 458   w65-*-*)
 459         sys_dir=w65
 460         ;;
 461   xscale-*-*)
 462         sys_dir=arm
 463         if [ "x${newlib_may_supply_syscalls}" = "xno" ] ; then
 464           have_crt0="no"
 465         fi
 466         ;;
 467   z8k-*-coff)
 468         sys_dir=z8ksim
 469         ;;
 470 esac
 471
 472 # Host specific flag settings -- usually for features that are not
 473 # general enough or broad enough to be handled above.
 474 # THIS TABLE IS ALPHA SORTED.  KEEP IT THAT WAY.
 475
 476 case "${host}" in
 477   *-*-cygwin*)
 478         test -z "$cygwin_srcdir" && cygwin_srcdir=`cd ${srcdir}/../winsup/cygwin; pwd`
 479         export cygwin_srcdir
 480         default_newlib_io_long_long="yes"
 481         default_newlib_io_long_double="yes"
 482         default_newlib_io_pos_args="yes"
 483         CC="${CC} -I${cygwin_srcdir}/include"
 484         newlib_cflags="${newlib_cflags} -DHAVE_OPENDIR -DHAVE_RENAME -DSIGNAL_PROVIDED -D_COMPILING_NEWLIB -DHAVE_FCNTL -DMALLOC_PROVIDED"
 485         syscall_dir=syscalls
 486         ;;
 487 # RTEMS supplies its own versions of some routines:
 488 #       malloc()            (reentrant version)
 489 #       exit()              RTEMS has a "global" reent to flush
 490 #       signal()/raise()    RTEMS has its own including pthread signals
 491 #       _XYZ_r()            RTEMS has its own reentrant routines
 492 #
 493 #  NOTE: When newlib malloc uses a semaphore, RTEMS will switch to that.
 494   *-*-rtems*)
 495         default_newlib_io_long_long="yes"
 496         newlib_cflags="${newlib_cflags} -DHAVE_GETTIMEOFDAY -DMALLOC_PROVIDED -DEXIT_PROVIDED -DMISSING_SYSCALL_NAMES -DSIGNAL_PROVIDED -DREENTRANT_SYSCALLS_PROVIDED -DHAVE_OPENDIR -DNO_EXEC -DHAVE_FCNTL"
 497         ;;
 498 # VxWorks supplies its own version of malloc, and the newlib one
 499 # doesn't work because VxWorks does not have sbrk.
 500   *-wrs-vxworks*)
 501         newlib_cflags="${newlib_cflags} -DMALLOC_PROVIDED -DMISSING_SYSCALL_NAMES -DHAVE_FCNTL"
 502         ;;
 503 # UDI doesn't have exec, so system() should fail the right way
 504   a29k-amd-udi)
 505         newlib_cflags="${newlib_cflags} -DNO_EXEC"
 506         syscall_dir=syscalls
 507         ;;
 508   arc-*-*)
 509         syscall_dir=syscalls
 510         ;;
 511   arm-*-pe)
 512         syscall_dir=syscalls
 513         newlib_cflags="${newlib_cflags} -DABORT_PROVIDED -DHAVE_GETTIMEOFDAY"
 514         ;;
 515   arm-*-*)
 516         syscall_dir=syscalls
 517         newlib_cflags="${newlib_cflags} -DABORT_PROVIDED -DHAVE_GETTIMEOFDAY"
 518 # If newlib is supplying syscalls, select which debug protocol is being used.
 519 # ARM_RDP_MONITOR selects the Demon monitor.
 520 # ARM_RDI_MONITOR selects the Angel monitor.
 521 # If neither are defined, then hard coded defaults will be used
 522 # to create the program's environment.
 523 # If --disable-newlib-supplied-syscalls is specified, then the end-user
 524 # may specify the protocol via gcc spec files supplied by libgloss.
 525 # See also thumb below.
 526         if [ "x${newlib_may_supply_syscalls}" = "xyes" ] ; then
 527 #         newlib_cflags="${newlib_cflags} -DARM_RDP_MONITOR"
 528           newlib_cflags="${newlib_cflags} -DARM_RDI_MONITOR"
 529         fi
 530         ;;
 531   arc*)
 532         newlib_cflags="${newlib_cflags} -DREENTRANT_SYSCALLS_PROVIDED"
 533         ;;
 534   avr*)
 535         newlib_cflags="${newlib_cflags} -DNO_EXEC -DSMALL_MEMORY -DMISSING_SYSCALL_NAMES"
 536         ;;
 537   cris-*-* | crisv32-*-*)
 538         default_newlib_io_long_long="yes"
 539         newlib_cflags="${newlib_cflags} -DHAVE_RENAME -DHAVE_GETTIMEOFDAY -D_USE_WRITE -DCOMPACT_CTYPE"
 540         syscall_dir=syscalls
 541         ;;
 542   crx-*-*)
 543         newlib_cflags="${newlib_cflags} -DHAVE_RENAME -DMISSING_SYSCALL_NAMES"
 544         syscall_dir=
 545         ;;
 546   d10v*)
 547         newlib_cflags="${newlib_cflags} -DSMALL_MEMORY"
 548         syscall_dir=syscalls
 549         ;;
 550   d30v*)
 551         newlib_cflags="${newlib_cflags} -DABORT_MESSAGE -DSMALL_MEMORY -DMISSING_SYSCALL_NAMES"
 552         syscall_dir=
 553         ;;
 554   ep9312-*-*)
 555         syscall_dir=syscalls
 556         newlib_cflags="${newlib_cflags} -DABORT_PROVIDED -DHAVE_GETTIMEOFDAY"
 557         if [ "x${newlib_may_supply_syscalls}" = "xyes" ] ; then
 558           newlib_cflags="${newlib_cflags} -DARM_RDI_MONITOR"
 559         fi
 560         ;;
 561   fr30-*-*)
 562         syscall_dir=syscalls
 563         ;;
 564   frv-*-*)
 565         syscall_dir=syscalls
 566         default_newlib_io_long_long="yes"
 567         ;;
 568   h8300*-*-*)
 569         syscall_dir=syscalls
 570         default_newlib_io_long_long="yes"
 571         newlib_cflags="${newlib_cflags} -DSMALL_DTOA -DSMALL_MEMORY"
 572         # Simulator only extensions for H8300.
 573         # Uncomment the next line to enable them.
 574         # newlib_cflags="${newlib_cflags} -D__SIMULATOR__"
 575         ;;
 576   h8500-*-*)
 577         syscall_dir=syscalls
 578         newlib_cflags="${newlib_cflags} -DSMALL_DTOA -DSMALL_MEMORY"
 579         ;;
 580   i[34567]86-*-sco*)
 581         newlib_cflags="${newlib_cflags} -DSIGNAL_PROVIDED -DHAVE_FCNTL"
 582         ;;
 583   i[34567]86-*-netware*)
 584         newlib_cflags="${newlib_cflags} -DMISSING_SYSCALL_NAMES -DNO_EXEC -DABORT_PROVIDED -DCLOCK_PROVIDED -DMALLOC_PROVIDED -DHAVE_FCNTL"
 585         ;;
 586   iq2000*)
 587         syscall_dir=syscalls
 588         default_newlib_io_long_long="yes"
 589         ;;
 590   m32r-*-*)
 591         # Pass -msdata=sdata so _impure_ptr goes in .sdata.
 592         # We don't generate sda relocs however for upward compatibility.
 593         # FIXME: This is necessary because the default multilib doesn't
 594         # use --print-multi-lib.
 595         newlib_cflags="${newlib_cflags} -msdata=sdata"
 596         syscall_dir=syscalls
 597         ;;
 598   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 599         newlib_cflags="${newlib_cflags} -DNO_EXEC -DABORT_PROVIDED -DSMALL_MEMORY -DMISSING_SYSCALL_NAMES"
 600         ;;
 601   mcore-*-*)
 602         syscall_dir=syscalls
 603         ;;
 604   mips64vr*-*-*)
 605         default_newlib_io_long_long="yes"
 606         newlib_cflags="${newlib_cflags} -DMISSING_SYSCALL_NAMES"
 607         ;;
 608   mips*-*-elf*)
 609         default_newlib_io_long_long="yes"
 610         newlib_cflags="${newlib_cflags} -DMISSING_SYSCALL_NAMES"
 611         ;;
 612   mmix-*)
 613         syscall_dir=syscalls
 614         # We need every symbol 32-bit aligned, so the invalid
 615         # construct with attribute ((alias ("_ctype_b+127"))) breaks.
 616         newlib_cflags="${newlib_cflags} -DCOMPACT_CTYPE"
 617         ;;
 618   mn10?00-*-*)
 619         syscall_dir=syscalls
 620         ;;
 621   powerpc*-*-eabialtivec*)
 622         default_newlib_io_long_long="yes"
 623         newlib_cflags="${newlib_cflags} -DMISSING_SYSCALL_NAMES"
 624         ;;
 625   powerpc*-*-eabispe*)
 626         default_newlib_io_long_long="yes"
 627         newlib_cflags="${newlib_cflags} -DMISSING_SYSCALL_NAMES"
 628         ;;
 629   powerpc*-*-eabi* | \
 630   powerpc*-*-elf* | \
 631   powerpc*-*-linux* | \
 632   powerpc*-*-rtem* | \
 633   powerpc*-*-sysv* | \
 634   powerpc*-*-solaris*)
 635         default_newlib_io_long_long="yes"
 636         newlib_cflags="${newlib_cflags} -mrelocatable-lib -mno-eabi -mstrict-align -DMISSING_SYSCALL_NAMES"
 637         ;;
 638   powerpcle-*-pe)
 639         newlib_cflags="${newlib_cflags} -DHAVE_OPENDIR -DHAVE_RENAME -DHAVE_FCNTL"
 640         syscall_dir=syscalls
 641         ;;
 642   sh*-*-*)
 643         default_newlib_io_long_long="yes"
 644         newlib_cflags="${newlib_cflags} -DHAVE_GETTIMEOFDAY"
 645         syscall_dir=syscalls
 646         ;;
 647   sparc-sun-sunos*)
 648         newlib_cflags="${newlib_cflags} -DSIGNAL_PROVIDED"
 649         ;;
 650   sparc64-*-*)
 651         newlib_cflags="${newlib_cflags} -DREENTRANT_SYSCALLS_PROVIDED -DHAVE_BLKSIZE -DHAVE_GETTIMEOFDAY -DHAVE_FCNTL"
 652         # This either belongs elsewhere or nowhere. But I need *something*,
 653         # so for now it's here ...
 654         case "${host_os}" in
 655           aoutv8 | *32p)
 656                 newlib_cflags="${newlib_cflags} -DTARGET_PTR_SIZE=32" ;;
 657           *)
 658                 newlib_cflags="${newlib_cflags} -DTARGET_PTR_SIZE=64" ;;
 659         esac
 660         ;;
 661   strongarm-*-*)
 662         syscall_dir=syscalls
 663         newlib_cflags="${newlib_cflags} -DABORT_PROVIDED -DHAVE_GETTIMEOFDAY"
 664         ;;
 665   thumb-*-pe)
 666         syscall_dir=syscalls
 667         newlib_cflags="${newlib_cflags} -DABORT_PROVIDED -DHAVE_GETTIMEOFDAY"
 668 # Don't use the debugging protocols just yet.
 669         ;;
 670   thumb-*-*)
 671         syscall_dir=syscalls
 672         newlib_cflags="${newlib_cflags} -DABORT_PROVIDED -DHAVE_GETTIMEOFDAY"
 673 # If newlib is supplying syscalls, select which debug protocol is being used.
 674 # ARM_RDP_MONITOR selects the Demon monitor.
 675 # ARM_RDI_MONITOR selects the Angel monitor.
 676 # If neither are defined, then hard coded defaults will be used
 677 # to create the program's environment.
 678 # If --disable-newlib-supplied-syscalls is specified, then the end-user
 679 # may specify the protocol via gcc spec files supplied by libgloss.
 680         if [ "x${newlib_may_supply_syscalls}" = "xyes" ] ; then
 681 #         newlib_cflags="${newlib_cflags} -DARM_RDP_MONITOR"
 682           newlib_cflags="${newlib_cflags} -DARM_RDI_MONITOR"
 683         fi
 684         ;;
 685   tic80*)
 686         syscall_dir=syscalls
 687         ;;
 688   v850-*-*)
 689         syscall_dir=syscalls
 690         ;;
 691   v850e-*-*)
 692         syscall_dir=syscalls
 693         ;;
 694   v850ea-*-*)
 695         syscall_dir=syscalls
 696         ;;
 697   w65-*-*)
 698         syscall_dir=syscalls
 699         newlib_cflags="${newlib_cflags} -DSMALL_DTOA -DSMALL_MEMORY"
 700         ;;
 701   xscale-*-*)
 702         syscall_dir=syscalls
 703         newlib_cflags="${newlib_cflags} -DABORT_PROVIDED -DHAVE_GETTIMEOFDAY"
 704         newlib_cflags="${newlib_cflags} -DHAVE_SYSTEM -DHAVE_RENAME"
 705         if [ "x${newlib_may_supply_syscalls}" = "xyes" ] ; then
 706           newlib_cflags="${newlib_cflags} -DARM_RDI_MONITOR"
 707         fi
 708         ;;
 709   xstormy16-*-*)
 710         newlib_cflags="${newlib_cflags} -DHAVE_GETTIMEOFDAY"
 711         syscall_dir=syscalls
 712         ;;
 713   z8k-*-*)
 714         syscall_dir=syscalls
 715         ;;
 716   *)
 717         newlib_cflags="${newlib_cflags} -DMISSING_SYSCALL_NAMES"
 718         syscall_dir=
 719         ;;
 720 esac
 721
 722 # Use defaults for certain settings if not specified by user
 723
 724 # Enable long long support in I/O routines if requested.
 725 if [ "x${newlib_io_long_long}" = "x" ]; then
 726         if [ ${default_newlib_io_long_long} = "yes" ]; then
 727                 newlib_io_long_long="yes";
 728         fi
 729 fi
 730
 731 # Enable long double support in I/O routines if requested.
 732 if [ "x${newlib_io_long_double}" = "x" ]; then
 733         if [ ${default_newlib_io_long_double} = "yes" ]; then
 734                 newlib_io_long_double="yes";
 735         fi
 736 fi
 737
 738 # Enable printf positional argument support if requested.
 739 if [ "x${newlib_io_pos_args}" = "x" ]; then
 740         if [ ${default_newlib_io_pos_args} = "yes" ]; then
 741                 newlib_io_pos_args="yes";
 742         fi
 743 fi
 744
 745 # Disable atexit dynamic allocation if requested.
 746 if [ "x${newlib_atexit_dynamic_alloc}" = "x" ]; then
 747         if [ ${default_newlib_atexit_dynamic_alloc} = "yes" ]; then
 748                 newlib_atexit_dynamic_alloc="yes";
 749         fi
 750 fi
 751
 752 if test -z "${have_crt0}" && test -n "${sys_dir}"; then
 753   have_crt0="yes"
 754 fi