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   bfin)
 103         machine_dir=bfin
 104         ;;
 105   cris | crisv32)
 106         machine_dir=cris
 107         ;;
 108   crx*)
 109         machine_dir=crx
 110         ;;
 111   d10v*)
 112         machine_dir=d10v
 113         ;;
 114   d30v*)
 115         machine_dir=d30v
 116         ;;
 117   ep9312)
 118         machine_dir=arm
 119         ;;
 120   fr30)
 121         machine_dir=fr30
 122         ;;
 123   frv)
 124         machine_dir=frv
 125         ;;
 126   h8300)
 127         machine_dir=h8300
 128         ;;
 129   h8500)
 130         machine_dir=h8500
 131         ;;
 132   hppa*)
 133         machine_dir=hppa
 134         ;;
 135   i960)
 136         machine_dir=i960
 137         ;;
 138   i[34567]86)
 139         # Don't use for these since they provide their own setjmp.
 140         case ${host} in
 141         *-*-sco* | *-*-cygwin*)
 142                 libm_machine_dir=i386
 143                 machine_dir=i386
 144                 ;;
 145         *)
 146                 libm_machine_dir=i386
 147                 machine_dir=i386
 148                 mach_add_setjmp=true
 149                 ;;
 150         esac
 151         ;;
 152   ia64*)
 153         ;;
 154   iq2000)
 155         machine_dir=iq2000
 156         ;;
 157   m32c)
 158         machine_dir=m32c
 159         newlib_cflags="${newlib_cflags} -DPREFER_SIZE_OVER_SPEED -DABORT_PROVIDED -DSMALL_MEMORY"
 160         ;;
 161
 162   m32r*)
 163         machine_dir=m32r
 164         ;;
 165
 166   m68hc11|m6811|m68hc12|m6812)
 167         machine_dir=m68hc11
 168         newlib_cflags="-DPREFER_SIZE_OVER_SPEED -Os -mrelax"
 169         CFLAGS="-g -Os"
 170         ;;
 171
 172   m68*)
 173         machine_dir=m68k
 174         newlib_cflags="${newlib_cflags} -DCOMPACT_CTYPE"
 175         ;;
 176   m88k)
 177         machine_dir=m88k
 178         newlib_cflags="${newlib_cflags} -m88000"
 179         ;;
 180   m88110)
 181         machine_dir=m88k
 182         newlib_cflags="${newlib_cflags} -m88110"
 183         ;;
 184   mcore)
 185         ;;
 186   mips*)
 187         machine_dir=mips
 188         ;;
 189   mmix)
 190         ;;
 191   mn10200)
 192         machine_dir=mn10200
 193         ;;
 194   mn10300)
 195         default_newlib_io_long_long="yes"
 196         machine_dir=mn10300
 197         ;;
 198   mt*)
 199         machine_dir=mt
 200         ;;
 201   or16)
 202         ;;
 203   or32)
 204         ;;
 205   powerpc*)
 206         machine_dir=powerpc
 207         ;;
 208   sh | sh64)
 209         machine_dir=sh
 210         ;;
 211   sparc*)
 212         machine_dir=sparc
 213         # FIXME: Might wish to make MALLOC_ALIGNMENT more generic.
 214         newlib_cflags="${newlib_cflags} -DMALLOC_ALIGNMENT=8"
 215         ;;
 216   strongarm)
 217         machine_dir=arm
 218         ;;
 219   xscale)
 220         machine_dir=xscale
 221         ;;
 222   thumb)
 223         machine_dir=arm
 224         ;;
 225   tic4x|c4x)
 226         machine_dir=tic4x
 227         ;;
 228   tic80*)
 229         machine_dir=tic80
 230         ;;
 231   v70)
 232         ;;
 233   v810)
 234         ;;
 235   v850)
 236         machine_dir=v850
 237         newlib_cflags="${newlib_cflags} -DPREFER_SIZE_OVER_SPEED -mv850 "
 238         ;;
 239   v850e)
 240         machine_dir=v850
 241         newlib_cflags="${newlib_cflags} -DPREFER_SIZE_OVER_SPEED "
 242         ;;
 243   w65*)
 244         machine_dir=w65
 245         ;;
 246   xstormy16)
 247         machine_dir=xstormy16
 248         newlib_cflags="${newlib_cflags} -DMALLOC_PROVIDED"
 249         newlib_cflags="${newlib_cflags} -DPREFER_SIZE_OVER_SPEED"
 250         ;;
 251   z8k)
 252         machine_dir=z8k
 253         ;;
 254   spu)
 255         machine_dir=spu
 256         newlib_cflags="${newlib_cflags} -ffunction-sections -fdata-sections "
 257         ;;
 258   *)
 259         echo '***' "Newlib does not support CPU ${host_cpu}" 1>&2
 260         exit 1
 261         ;;
 262 esac
 263
 264 # Disable thread support if requested.
 265
 266 if [ "${newlib_multithread}" = "no" ] ; then
 267         newlib_cflags="${newlib_cflags} -D__SINGLE_THREAD__"
 268 fi
 269
 270 # Disable syscall support if requested.
 271
 272 if [ "${newlib_may_supply_syscalls}" = "no" ] ; then
 273         newlib_cflags="${newlib_cflags} -D__NO_SYSCALLS__"
 274 fi
 275
 276 # Enable multibyte support if requested or it is defaulted
 277 # for target.
 278
 279 if [ "x${newlib_mb}" = "x" ]; then
 280         case "${host}" in
 281           i[34567]86-pc-linux-*|*-*-cygwin*)
 282                 newlib_mb=yes
 283                 ;;
 284         esac
 285 fi
 286
 287 # Disable printf/scanf floating-point support if requested.
 288
 289 if [ "${newlib_io_float}" = "no" ] ; then
 290         newlib_cflags="${newlib_cflags} -DNO_FLOATING_POINT"
 291 fi
 292
 293 # Verify if shared newlib support is allowed and set appropriate variables
 294 # We don't want to use libtool for platforms that we are not going to
 295 # support shared libraries.  This is because it adds executable tests which
 296 # we don't want for most embedded platforms.
 297 case "${host}" in
 298   i[34567]86-pc-linux-*)
 299     use_libtool=yes
 300     have_sys_mach_dir=yes
 301     stdio64_dir=stdio64
 302     oext=lo
 303     lpfx=
 304     aext=la ;;
 305   *) ;; #shared library not supported for ${host}
 306 esac
 307
 308 # Get the source directories to use for the host.  unix_dir is set
 309 # to unix to get some standard Unix routines.  posix_dir is set to get some
 310 # standard Posix routines.  sys_dir should supply system dependent routines
 311 # including crt0.
 312 # THIS TABLE IS ALPHA SORTED.  KEEP IT THAT WAY.
 313
 314 case "${host}" in
 315   *-*-cygwin*)
 316         posix_dir=posix
 317         stdio64_dir=stdio64
 318         ;;
 319   *-*-netware*)
 320         signal_dir=
 321         sys_dir=netware
 322         ;;
 323   *-*-rtems*)                   # generic RTEMS support
 324         sys_dir=rtems
 325         # RTEMS POSIX support is all inside RTEMS
 326         ;;
 327   a29k-*-*)
 328         sys_dir=a29khif
 329         signal_dir=
 330         ;;
 331   arc-*-*)
 332         sys_dir=arc
 333         ;;
 334   arm-*-*)
 335         sys_dir=arm
 336         if [ "x${newlib_may_supply_syscalls}" = "xno" ] ; then
 337           have_crt0="no"
 338         fi
 339         ;;
 340   bfin-*-*)
 341         sys_dir=
 342         ;;
 343   crx*)
 344         sys_dir=
 345         ;;
 346   d10v*)
 347         sys_dir=d10v
 348         ;;
 349   d30v*)
 350         sys_dir=
 351         ;;
 352   ep9312-*-*)
 353         sys_dir=arm
 354         if [ "x${newlib_may_supply_syscalls}" = "xno" ] ; then
 355           have_crt0="no"
 356         fi
 357         ;;
 358   frv*)
 359         sys_dir=
 360         ;;
 361   h8300-*-hms*)
 362         sys_dir=h8300hms
 363         ;;
 364   h8300-*-elf*)
 365         sys_dir=h8300hms
 366         ;;
 367   h8300-*-coff*)
 368         sys_dir=h8300hms
 369         ;;
 370   h8300-*-xray*)
 371         sys_dir=h8300xray
 372         ;;
 373   h8500-*-hms*)
 374         sys_dir=h8500hms
 375         ;;
 376   h8500-*-elf*)
 377         sys_dir=h8500hms
 378         ;;
 379   i[34567]86-*-rdos*)
 380         sys_dir=rdos
 381         newlib_cflags="${newlib_cflags} -DMISSING_SYSCALL_NAMES"
 382         ;;
 383   i[34567]86-*-sco*)
 384         sys_dir=sysvi386
 385         unix_dir=unix
 386         ;;
 387   i[34567]86-pc-linux-*)
 388         sys_dir=linux
 389         unix_dir=unix
 390         posix_dir=posix
 391         crt1=crt1.o
 392         crt1_dir=libc/sys/${sys_dir}
 393         gcc_dir=`gcc -print-search-dirs | awk '/^install:/{print $2}'`
 394         default_newlib_io_long_double="yes"
 395         default_newlib_io_long_long="yes"
 396         default_newlib_io_pos_args="yes"
 397         #newlib_cflags="${newlib_cflags} -Werror" # DEBUGGING ONLY;BREAKS BUILD
 398         newlib_cflags="${newlib_cflags} -Wall"
 399         newlib_cflags="${newlib_cflags} -D_I386MACH_ALLOW_HW_INTERRUPTS"
 400         newlib_cflags="${newlib_cflags} -DHAVE_FCNTL"
 401         # --- Required when building a shared library ------------------------
 402         newlib_cflags="${newlib_cflags} -fPIC -D_I386MACH_NEED_SOTYPE_FUNCTION"
 403         # --- The three lines below are optional ------------------------------
 404         ##newlib_cflags="${newlib_cflags} -nostdinc"
 405         ##newlib_cflags="${newlib_cflags} -I`newlib-flags --kernel-dir`/include"
 406         ##newlib_cflags="${newlib_cflags} -idirafter ${gcc_dir}include"
 407         ;;
 408
 409   m68hc11-*-*|m6811-*-*|m6812-*-*|m68hc12-*-*)
 410         ;;
 411
 412   m68k-sun-sunos*)
 413         unix_dir=unix
 414         ;;
 415   m8*-bug-*)
 416         sys_dir=m88kbug
 417         ;;
 418   mips*-dec-*)
 419         sys_dir=decstation
 420         ;;
 421   mmix-knuth-mmixware)
 422         sys_dir=mmixware
 423         ;;
 424   powerpcle-*-pe)
 425         posix_dir=posix
 426         ;;
 427   sh*-*)
 428         sys_dir=sh
 429         ;;
 430   sparc-sun-sunos*)
 431         sys_dir=sun4
 432         unix_dir=unix
 433         ;;
 434   sparc64*)
 435         sys_dir=sparc64
 436         unix_dir=unix
 437         ;;
 438   spu-*-*)
 439         default_newlib_io_long_long="yes"
 440         ;;
 441   strongarm-*-*)
 442         sys_dir=arm
 443         if [ "x${newlib_may_supply_syscalls}" = "xno" ] ; then
 444           have_crt0="no"
 445         fi
 446         ;;
 447   thumb-*-*)
 448         sys_dir=arm
 449         if [ "x${newlib_may_supply_syscalls}" = "xno" ] ; then
 450           have_crt0="no"
 451         fi
 452         ;;
 453   tic80*)
 454         sys_dir=tic80
 455         ;;
 456   v70-nec-*)
 457         sys_dir=sysvnecv70
 458         ;;
 459   v810-*-*)
 460         sys_dir=sysnec810
 461         ;;
 462   v850-*-*)
 463         sys_dir=sysnecv850
 464         ;;
 465   v850e-*-*)
 466         sys_dir=sysnecv850
 467         ;;
 468   v850ea-*-*)
 469         sys_dir=sysnecv850
 470         ;;
 471   w65-*-*)
 472         sys_dir=w65
 473         ;;
 474   xscale-*-*)
 475         sys_dir=arm
 476         if [ "x${newlib_may_supply_syscalls}" = "xno" ] ; then
 477           have_crt0="no"
 478         fi
 479         ;;
 480   z8k-*-coff)
 481         sys_dir=z8ksim
 482         ;;
 483 esac
 484
 485 # Host specific flag settings -- usually for features that are not
 486 # general enough or broad enough to be handled above.
 487 # THIS TABLE IS ALPHA SORTED.  KEEP IT THAT WAY.
 488
 489 case "${host}" in
 490   *-*-cygwin*)
 491         test -z "$cygwin_srcdir" && cygwin_srcdir=`cd ${srcdir}/../winsup/cygwin; pwd`
 492         export cygwin_srcdir
 493         default_newlib_io_long_long="yes"
 494         default_newlib_io_long_double="yes"
 495         default_newlib_io_pos_args="yes"
 496         CC="${CC} -I${cygwin_srcdir}/include"
 497         newlib_cflags="${newlib_cflags} -DHAVE_OPENDIR -DHAVE_RENAME -DSIGNAL_PROVIDED -D_COMPILING_NEWLIB -DHAVE_FCNTL -DMALLOC_PROVIDED"
 498         syscall_dir=syscalls
 499         ;;
 500 # RTEMS supplies its own versions of some routines:
 501 #       malloc()            (reentrant version)
 502 #       exit()              RTEMS has a "global" reent to flush
 503 #       signal()/raise()    RTEMS has its own including pthread signals
 504 #       _XYZ_r()            RTEMS has its own reentrant routines
 505 #
 506 #  NOTE: When newlib malloc uses a semaphore, RTEMS will switch to that.
 507   *-*-rtems*)
 508         default_newlib_io_long_long="yes"
 509         newlib_cflags="${newlib_cflags} -DMALLOC_PROVIDED -DEXIT_PROVIDED -DMISSING_SYSCALL_NAMES -DSIGNAL_PROVIDED -DREENTRANT_SYSCALLS_PROVIDED -DHAVE_OPENDIR -DNO_EXEC -DHAVE_FCNTL"
 510         ;;
 511 # VxWorks supplies its own version of malloc, and the newlib one
 512 # doesn't work because VxWorks does not have sbrk.
 513   *-wrs-vxworks*)
 514         newlib_cflags="${newlib_cflags} -DMALLOC_PROVIDED -DMISSING_SYSCALL_NAMES -DHAVE_FCNTL"
 515         ;;
 516 # UDI doesn't have exec, so system() should fail the right way
 517   a29k-amd-udi)
 518         newlib_cflags="${newlib_cflags} -DNO_EXEC"
 519         syscall_dir=syscalls
 520         ;;
 521   arc-*-*)
 522         syscall_dir=syscalls
 523         ;;
 524   arm-*-pe)
 525         syscall_dir=syscalls
 526         ;;
 527   arm-*-*)
 528         syscall_dir=syscalls
 529 # If newlib is supplying syscalls, select which debug protocol is being used.
 530 # ARM_RDP_MONITOR selects the Demon monitor.
 531 # ARM_RDI_MONITOR selects the Angel monitor.
 532 # If neither are defined, then hard coded defaults will be used
 533 # to create the program's environment.
 534 # If --disable-newlib-supplied-syscalls is specified, then the end-user
 535 # may specify the protocol via gcc spec files supplied by libgloss.
 536 # See also thumb below.
 537         if [ "x${newlib_may_supply_syscalls}" = "xyes" ] ; then
 538 #         newlib_cflags="${newlib_cflags} -DARM_RDP_MONITOR"
 539           newlib_cflags="${newlib_cflags} -DARM_RDI_MONITOR"
 540         fi
 541         ;;
 542   arc*)
 543         newlib_cflags="${newlib_cflags} -DREENTRANT_SYSCALLS_PROVIDED"
 544         ;;
 545   avr*)
 546         newlib_cflags="${newlib_cflags} -DNO_EXEC -DSMALL_MEMORY -DMISSING_SYSCALL_NAMES"
 547         ;;
 548   bfin*)
 549         syscall_dir=syscalls
 550         ;;
 551   cris-*-* | crisv32-*-*)
 552         default_newlib_io_long_long="yes"
 553         newlib_cflags="${newlib_cflags} -DHAVE_RENAME -D_USE_WRITE -DCOMPACT_CTYPE"
 554         syscall_dir=syscalls
 555         ;;
 556   crx-*-*)
 557         newlib_cflags="${newlib_cflags} -DHAVE_RENAME -DMISSING_SYSCALL_NAMES"
 558         syscall_dir=
 559         ;;
 560   d10v*)
 561         newlib_cflags="${newlib_cflags} -DSMALL_MEMORY"
 562         syscall_dir=syscalls
 563         ;;
 564   d30v*)
 565         newlib_cflags="${newlib_cflags} -DABORT_MESSAGE -DSMALL_MEMORY -DMISSING_SYSCALL_NAMES"
 566         syscall_dir=
 567         ;;
 568   ep9312-*-*)
 569         syscall_dir=syscalls
 570         if [ "x${newlib_may_supply_syscalls}" = "xyes" ] ; then
 571           newlib_cflags="${newlib_cflags} -DARM_RDI_MONITOR"
 572         fi
 573         ;;
 574   fr30-*-*)
 575         syscall_dir=syscalls
 576         ;;
 577   frv-*-*)
 578         syscall_dir=syscalls
 579         default_newlib_io_long_long="yes"
 580         ;;
 581   h8300*-*-*)
 582         syscall_dir=syscalls
 583         default_newlib_io_long_long="yes"
 584         newlib_cflags="${newlib_cflags} -DSMALL_DTOA -DSMALL_MEMORY"
 585         # Simulator only extensions for H8300.
 586         # Uncomment the next line to enable them.
 587         # newlib_cflags="${newlib_cflags} -D__SIMULATOR__"
 588         ;;
 589   h8500-*-*)
 590         syscall_dir=syscalls
 591         newlib_cflags="${newlib_cflags} -DSMALL_DTOA -DSMALL_MEMORY"
 592         ;;
 593   i[34567]86-*-sco*)
 594         newlib_cflags="${newlib_cflags} -DSIGNAL_PROVIDED -DHAVE_FCNTL"
 595         ;;
 596   i[34567]86-*-netware*)
 597         newlib_cflags="${newlib_cflags} -DMISSING_SYSCALL_NAMES -DNO_EXEC -DABORT_PROVIDED -DCLOCK_PROVIDED -DMALLOC_PROVIDED -DHAVE_FCNTL"
 598         ;;
 599   iq2000*)
 600         syscall_dir=syscalls
 601         default_newlib_io_long_long="yes"
 602         ;;
 603   m32r-*-*)
 604         # Pass -msdata=sdata so _impure_ptr goes in .sdata.
 605         # We don't generate sda relocs however for upward compatibility.
 606         # FIXME: This is necessary because the default multilib doesn't
 607         # use --print-multi-lib.
 608         newlib_cflags="${newlib_cflags} -msdata=sdata"
 609         syscall_dir=syscalls
 610         ;;
 611   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 612         newlib_cflags="${newlib_cflags} -DNO_EXEC -DABORT_PROVIDED -DSMALL_MEMORY -DMISSING_SYSCALL_NAMES"
 613         ;;
 614   m68k-unknown-elf)
 615         newlib_cflags="${newlib_cflags} -DHAVE_RENAME -DHAVE_SYSTEM -DMISSING_SYSCALL_NAMES"
 616         syscall_dir=
 617         ;;
 618   mcore-*-*)
 619         syscall_dir=syscalls
 620         ;;
 621   mips64vr*-*-*)
 622         default_newlib_io_long_long="yes"
 623         newlib_cflags="${newlib_cflags} -DMISSING_SYSCALL_NAMES"
 624         ;;
 625   mips*-*-elf*)
 626         default_newlib_io_long_long="yes"
 627         newlib_cflags="${newlib_cflags} -DMISSING_SYSCALL_NAMES"
 628         ;;
 629   mmix-*)
 630         syscall_dir=syscalls
 631         # We need every symbol 32-bit aligned, so the invalid
 632         # construct with attribute ((alias ("_ctype_b+127"))) breaks.
 633         newlib_cflags="${newlib_cflags} -DCOMPACT_CTYPE"
 634         ;;
 635   mn10?00-*-*)
 636         syscall_dir=syscalls
 637         ;;
 638   powerpc*-*-eabialtivec*)
 639         default_newlib_io_long_long="yes"
 640         newlib_cflags="${newlib_cflags} -DMISSING_SYSCALL_NAMES"
 641         ;;
 642   powerpc*-*-eabispe*)
 643         default_newlib_io_long_long="yes"
 644         newlib_cflags="${newlib_cflags} -DMISSING_SYSCALL_NAMES"
 645         ;;
 646   powerpc*-*-eabi* | \
 647   powerpc*-*-elf* | \
 648   powerpc*-*-linux* | \
 649   powerpc*-*-rtem* | \
 650   powerpc*-*-sysv* | \
 651   powerpc*-*-solaris*)
 652         default_newlib_io_long_long="yes"
 653         newlib_cflags="${newlib_cflags} -mrelocatable-lib -mno-eabi -mstrict-align -DMISSING_SYSCALL_NAMES"
 654         ;;
 655   powerpcle-*-pe)
 656         newlib_cflags="${newlib_cflags} -DHAVE_OPENDIR -DHAVE_RENAME -DHAVE_FCNTL"
 657         syscall_dir=syscalls
 658         ;;
 659   sh*-*-*)
 660         default_newlib_io_long_long="yes"
 661         syscall_dir=syscalls
 662         ;;
 663   sparc-sun-sunos*)
 664         newlib_cflags="${newlib_cflags} -DSIGNAL_PROVIDED"
 665         ;;
 666   sparc64-*-*)
 667         newlib_cflags="${newlib_cflags} -DREENTRANT_SYSCALLS_PROVIDED -DHAVE_BLKSIZE -DHAVE_FCNTL"
 668         # This either belongs elsewhere or nowhere. But I need *something*,
 669         # so for now it's here ...
 670         case "${host_os}" in
 671           aoutv8 | *32p)
 672                 newlib_cflags="${newlib_cflags} -DTARGET_PTR_SIZE=32" ;;
 673           *)
 674                 newlib_cflags="${newlib_cflags} -DTARGET_PTR_SIZE=64" ;;
 675         esac
 676         ;;
 677   strongarm-*-*)
 678         syscall_dir=syscalls
 679         ;;
 680   thumb-*-pe)
 681         syscall_dir=syscalls
 682 # Don't use the debugging protocols just yet.
 683         ;;
 684   thumb-*-*)
 685         syscall_dir=syscalls
 686 # If newlib is supplying syscalls, select which debug protocol is being used.
 687 # ARM_RDP_MONITOR selects the Demon monitor.
 688 # ARM_RDI_MONITOR selects the Angel monitor.
 689 # If neither are defined, then hard coded defaults will be used
 690 # to create the program's environment.
 691 # If --disable-newlib-supplied-syscalls is specified, then the end-user
 692 # may specify the protocol via gcc spec files supplied by libgloss.
 693         if [ "x${newlib_may_supply_syscalls}" = "xyes" ] ; then
 694 #         newlib_cflags="${newlib_cflags} -DARM_RDP_MONITOR"
 695           newlib_cflags="${newlib_cflags} -DARM_RDI_MONITOR"
 696         fi
 697         ;;
 698   tic80*)
 699         syscall_dir=syscalls
 700         ;;
 701   v850-*-*)
 702         syscall_dir=syscalls
 703         ;;
 704   v850e-*-*)
 705         syscall_dir=syscalls
 706         ;;
 707   v850ea-*-*)
 708         syscall_dir=syscalls
 709         ;;
 710   w65-*-*)
 711         syscall_dir=syscalls
 712         newlib_cflags="${newlib_cflags} -DSMALL_DTOA -DSMALL_MEMORY"
 713         ;;
 714   xscale-*-*)
 715         syscall_dir=syscalls
 716         newlib_cflags="${newlib_cflags} -DHAVE_SYSTEM -DHAVE_RENAME"
 717         if [ "x${newlib_may_supply_syscalls}" = "xyes" ] ; then
 718           newlib_cflags="${newlib_cflags} -DARM_RDI_MONITOR"
 719         fi
 720         ;;
 721   xstormy16-*-*)
 722         syscall_dir=syscalls
 723         ;;
 724   z8k-*-*)
 725         syscall_dir=syscalls
 726         ;;
 727   *)
 728         newlib_cflags="${newlib_cflags} -DMISSING_SYSCALL_NAMES"
 729         syscall_dir=
 730         ;;
 731 esac
 732
 733 # Use defaults for certain settings if not specified by user
 734
 735 # Enable long long support in I/O routines if requested.
 736 if [ "x${newlib_io_long_long}" = "x" ]; then
 737         if [ ${default_newlib_io_long_long} = "yes" ]; then
 738                 newlib_io_long_long="yes";
 739         fi
 740 fi
 741
 742 # Enable long double support in I/O routines if requested.
 743 if [ "x${newlib_io_long_double}" = "x" ]; then
 744         if [ ${default_newlib_io_long_double} = "yes" ]; then
 745                 newlib_io_long_double="yes";
 746         fi
 747 fi
 748
 749 # Enable printf positional argument support if requested.
 750 if [ "x${newlib_io_pos_args}" = "x" ]; then
 751         if [ ${default_newlib_io_pos_args} = "yes" ]; then
 752                 newlib_io_pos_args="yes";
 753         fi
 754 fi
 755
 756 # Disable atexit dynamic allocation if requested.
 757 if [ "x${newlib_atexit_dynamic_alloc}" = "x" ]; then
 758         if [ ${default_newlib_atexit_dynamic_alloc} = "yes" ]; then
 759                 newlib_atexit_dynamic_alloc="yes";
 760         fi
 761 fi
 762
 763 if test -z "${have_crt0}" && test -n "${sys_dir}"; then
 764   have_crt0="yes"
 765 fi