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