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_c99_formats --enable-newlib-io-c99-formats ("yes", "no", "")
  28 #   newlib_io_long_long --enable-newlib-io-long-long ("yes", "no", "")
  29 #   newlib_io_long_double --enable-newlib-io-long-double ("yes", "no", "")
  30
  31 # It sets the following shell variables:
  32 #   newlib_cflags       Special CFLAGS to use when building
  33 #   machine_dir         Subdirectory of libc/machine to configure
  34 #   sys_dir             Subdirectory of libc/sys to configure
  35 #   have_sys_mach_dir   Is there a machine subdirectory in sys subdirectory
  36 #   posix_dir           "posix" to build libc/posix, "" otherwise
  37 #   signal_dir          "signal" to build libc/signal, "" otherwise
  38 #   stdio64_dir         "stdio64" to build libc/stdio64, "" otherwise
  39 #   syscall_dir         "syscalls" to build libc/syscalls, "" otherwise
  40 #   unix_dir            "unix" to build libc/unix, "" otherwise
  41 #   use_libtool         flag: use libtool to build newlib?
  42 #   aext                library extension - needed for libtool support
  43 #   oext                object file extension - needed for libtool support
  44 #   lpfx                library object prefix - generated when no libtool
  45 #   crt1                name of crt1 object if one is provided
  46 #   crt1_dir            directory where crt1 object is found
  47 #   have_crt0           "yes"/"no" if crt0 is/isn't provided.
  48 #                       "" if crt0 is provided when sys_dir is set
  49
  50 newlib_cflags=
  51 libm_machine_dir=
  52 machine_dir=
  53 sys_dir=
  54 posix_dir=
  55 signal_dir=signal
  56 stdio_dir=stdio
  57 stdio64_dir=
  58 syscall_dir=
  59 unix_dir=
  60 mach_add_setjmp=
  61 crt1=
  62 crt1_dir=
  63 have_crt0=
  64 use_libtool=no
  65 have_sys_mach_dir=no
  66 default_newlib_io_c99_formats=no
  67 default_newlib_io_long_long=no
  68 default_newlib_io_long_double=no
  69 default_newlib_io_pos_args=no
  70 default_newlib_atexit_dynamic_alloc=yes
  71 aext=a
  72 oext=o
  73 lpfx="lib_a-"
  74
  75 case "${target_optspace}:${host}" in
  76   yes:*)
  77     newlib_cflags="${newlib_cflags} -Os"
  78     ;;
  79   :m32r-* | :d10v-* | :d30v-* | :avr-* | :m32c-* )
  80     newlib_cflags="${newlib_cflags} -Os"
  81     ;;
  82   no:* | :*)
  83     newlib_cflags="${newlib_cflags} -O2"
  84     ;;
  85 esac
  86
  87 # Get the source directories to use for the CPU type.
  88 # machine_dir should supply CPU dependent routines, such as setjmp.
  89 # newlib_cflags is passed to gcc when compiling.
  90 # THIS TABLE IS ALPHA SORTED.  KEEP IT THAT WAY.
  91
  92 case "${host_cpu}" in
  93   a29k)
  94         machine_dir=a29k
  95         ;;
  96   arc)
  97         machine_dir=
  98         ;;
  99   arm)
 100         machine_dir=arm
 101         ;;
 102   avr*)
 103         newlib_cflags="${newlib_cflags} -DPREFER_SIZE_OVER_SPEED -mcall-prologues"
 104         ;;
 105   bfin)
 106         machine_dir=bfin
 107         ;;
 108   cris | crisv32)
 109         machine_dir=cris
 110         ;;
 111   crx*)
 112         machine_dir=crx
 113         ;;
 114   d10v*)
 115         machine_dir=d10v
 116         ;;
 117   d30v*)
 118         machine_dir=d30v
 119         ;;
 120   ep9312)
 121         machine_dir=arm
 122         ;;
 123   fido)
 124         machine_dir=m68k
 125         newlib_cflags="${newlib_cflags} -DCOMPACT_CTYPE"
 126         ;;
 127   fr30)
 128         machine_dir=fr30
 129         ;;
 130   frv)
 131         machine_dir=frv
 132         ;;
 133   h8300)
 134         machine_dir=h8300
 135         ;;
 136   h8500)
 137         machine_dir=h8500
 138         ;;
 139   hppa*)
 140         machine_dir=hppa
 141         ;;
 142   i960)
 143         machine_dir=i960
 144         ;;
 145   i[34567]86)
 146         # Don't use for these since they provide their own setjmp.
 147         case ${host} in
 148         *-*-sco* | *-*-cygwin*)
 149                 libm_machine_dir=i386
 150                 machine_dir=i386
 151                 ;;
 152         *)
 153                 libm_machine_dir=i386
 154                 machine_dir=i386
 155                 mach_add_setjmp=true
 156                 ;;
 157         esac
 158         ;;
 159   ia64*)
 160         ;;
 161   iq2000)
 162         machine_dir=iq2000
 163         ;;
 164   m32c)
 165         machine_dir=m32c
 166         newlib_cflags="${newlib_cflags} -DPREFER_SIZE_OVER_SPEED -DABORT_PROVIDED -DSMALL_MEMORY"
 167         ;;
 168
 169   m32r*)
 170         machine_dir=m32r
 171         ;;
 172
 173   m68hc11|m6811|m68hc12|m6812)
 174         machine_dir=m68hc11
 175         newlib_cflags="-DPREFER_SIZE_OVER_SPEED -Os -mrelax"
 176         CFLAGS="-g -Os"
 177         ;;
 178
 179   m68*)
 180         machine_dir=m68k
 181         newlib_cflags="${newlib_cflags} -DCOMPACT_CTYPE"
 182         ;;
 183   m88k)
 184         machine_dir=m88k
 185         newlib_cflags="${newlib_cflags} -m88000"
 186         ;;
 187   m88110)
 188         machine_dir=m88k
 189         newlib_cflags="${newlib_cflags} -m88110"
 190         ;;
 191   mcore)
 192         ;;
 193   mips*)
 194         machine_dir=mips
 195         ;;
 196   mmix)
 197         ;;
 198   mn10200)
 199         machine_dir=mn10200
 200         ;;
 201   mn10300)
 202         default_newlib_io_long_long="yes"
 203         machine_dir=mn10300
 204         ;;
 205   mt*)
 206         machine_dir=mt
 207         ;;
 208   or16)
 209         ;;
 210   or32)
 211         ;;
 212   powerpc*)
 213         machine_dir=powerpc
 214         ;;
 215   sh | sh64)
 216         machine_dir=sh
 217         ;;
 218   sparc*)
 219         machine_dir=sparc
 220         # FIXME: Might wish to make MALLOC_ALIGNMENT more generic.
 221         newlib_cflags="${newlib_cflags} -DMALLOC_ALIGNMENT=8"
 222         ;;
 223   strongarm)
 224         machine_dir=arm
 225         ;;
 226   xscale)
 227         machine_dir=xscale
 228         ;;
 229   thumb)
 230         machine_dir=arm
 231         ;;
 232   tic4x|c4x)
 233         machine_dir=tic4x
 234         ;;
 235   tic80*)
 236         machine_dir=tic80
 237         ;;
 238   v70)
 239         ;;
 240   v810)
 241         ;;
 242   v850)
 243         machine_dir=v850
 244         newlib_cflags="${newlib_cflags} -DPREFER_SIZE_OVER_SPEED -mv850 "
 245         ;;
 246   v850e)
 247         machine_dir=v850
 248         newlib_cflags="${newlib_cflags} -DPREFER_SIZE_OVER_SPEED "
 249         ;;
 250   w65*)
 251         machine_dir=w65
 252         ;;
 253   xstormy16)
 254         machine_dir=xstormy16
 255         newlib_cflags="${newlib_cflags} -DMALLOC_PROVIDED"
 256         newlib_cflags="${newlib_cflags} -DPREFER_SIZE_OVER_SPEED"
 257         ;;
 258   z8k)
 259         machine_dir=z8k
 260         ;;
 261   spu)
 262         stdio_dir=
 263         libm_machine_dir=spu
 264         machine_dir=spu
 265         newlib_cflags="${newlib_cflags} -ffunction-sections -fdata-sections "
 266         ;;
 267   *)
 268         echo '***' "Newlib does not support CPU ${host_cpu}" 1>&2
 269         exit 1
 270         ;;
 271 esac
 272
 273 # Disable thread support if requested.
 274
 275 if [ "${newlib_multithread}" = "no" ] ; then
 276         newlib_cflags="${newlib_cflags} -D__SINGLE_THREAD__"
 277 fi
 278
 279 # Disable syscall support if requested.
 280
 281 if [ "${newlib_may_supply_syscalls}" = "no" ] ; then
 282         newlib_cflags="${newlib_cflags} -D__NO_SYSCALLS__"
 283 fi
 284
 285 # Enable multibyte support if requested or it is defaulted
 286 # for target.
 287
 288 if [ "x${newlib_mb}" = "x" ]; then
 289         case "${host}" in
 290           i[34567]86-pc-linux-*|*-*-cygwin*)
 291                 newlib_mb=yes
 292                 ;;
 293         esac
 294 fi
 295
 296 # Disable printf/scanf floating-point support if requested.
 297
 298 if [ "${newlib_io_float}" = "no" ] ; then
 299         newlib_cflags="${newlib_cflags} -DNO_FLOATING_POINT"
 300 fi
 301
 302 # Verify if shared newlib support is allowed and set appropriate variables
 303 # We don't want to use libtool for platforms that we are not going to
 304 # support shared libraries.  This is because it adds executable tests which
 305 # we don't want for most embedded platforms.
 306 case "${host}" in
 307   i[34567]86-pc-linux-*)
 308     use_libtool=yes
 309     have_sys_mach_dir=yes
 310     stdio64_dir=stdio64
 311     oext=lo
 312     lpfx=
 313     aext=la ;;
 314   *) ;; #shared library not supported for ${host}
 315 esac
 316
 317 # Get the source directories to use for the host.  unix_dir is set
 318 # to unix to get some standard Unix routines.  posix_dir is set to get some
 319 # standard Posix routines.  sys_dir should supply system dependent routines
 320 # including crt0.
 321 # THIS TABLE IS ALPHA SORTED.  KEEP IT THAT WAY.
 322
 323 case "${host}" in
 324   *-*-cygwin*)
 325         posix_dir=posix
 326         stdio64_dir=stdio64
 327         ;;
 328   *-*-netware*)
 329         signal_dir=
 330         sys_dir=netware
 331         ;;
 332   *-*-rtems*)                   # generic RTEMS support
 333         sys_dir=rtems
 334         # RTEMS POSIX support is all inside RTEMS
 335         ;;
 336   a29k-*-*)
 337         sys_dir=a29khif
 338         signal_dir=
 339         ;;
 340   arc-*-*)
 341         sys_dir=arc
 342         ;;
 343   arm-*-*)
 344         sys_dir=arm
 345         if [ "x${newlib_may_supply_syscalls}" = "xno" ] ; then
 346           have_crt0="no"
 347         fi
 348         ;;
 349   bfin-*-*)
 350         sys_dir=
 351         ;;
 352   crx*)
 353         sys_dir=
 354         ;;
 355   d10v*)
 356         sys_dir=d10v
 357         ;;
 358   d30v*)
 359         sys_dir=
 360         ;;
 361   ep9312-*-*)
 362         sys_dir=arm
 363         if [ "x${newlib_may_supply_syscalls}" = "xno" ] ; then
 364           have_crt0="no"
 365         fi
 366         ;;
 367   frv*)
 368         sys_dir=
 369         ;;
 370   h8300-*-hms*)
 371         sys_dir=h8300hms
 372         ;;
 373   h8300-*-elf*)
 374         sys_dir=h8300hms
 375         ;;
 376   h8300-*-coff*)
 377         sys_dir=h8300hms
 378         ;;
 379   h8300-*-xray*)
 380         sys_dir=h8300xray
 381         ;;
 382   h8500-*-hms*)
 383         sys_dir=h8500hms
 384         ;;
 385   h8500-*-elf*)
 386         sys_dir=h8500hms
 387         ;;
 388   i[34567]86-*-rdos*)
 389         sys_dir=rdos
 390         newlib_cflags="${newlib_cflags} -DMISSING_SYSCALL_NAMES"
 391         ;;
 392   i[34567]86-*-sco*)
 393         sys_dir=sysvi386
 394         unix_dir=unix
 395         ;;
 396   i[34567]86-pc-linux-*)
 397         sys_dir=linux
 398         unix_dir=unix
 399         posix_dir=posix
 400         crt1=crt1.o
 401         crt1_dir=libc/sys/${sys_dir}
 402         gcc_dir=`gcc -print-search-dirs | awk '/^install:/{print $2}'`
 403         default_newlib_io_c99_formats="yes"
 404         default_newlib_io_long_double="yes"
 405         default_newlib_io_long_long="yes"
 406         default_newlib_io_pos_args="yes"
 407         #newlib_cflags="${newlib_cflags} -Werror" # DEBUGGING ONLY;BREAKS BUILD
 408         newlib_cflags="${newlib_cflags} -Wall"
 409         newlib_cflags="${newlib_cflags} -D_I386MACH_ALLOW_HW_INTERRUPTS"
 410         newlib_cflags="${newlib_cflags} -DHAVE_FCNTL"
 411         # --- Required when building a shared library ------------------------
 412         newlib_cflags="${newlib_cflags} -fPIC -D_I386MACH_NEED_SOTYPE_FUNCTION"
 413         # --- The three lines below are optional ------------------------------
 414         ##newlib_cflags="${newlib_cflags} -nostdinc"
 415         ##newlib_cflags="${newlib_cflags} -I`newlib-flags --kernel-dir`/include"
 416         ##newlib_cflags="${newlib_cflags} -idirafter ${gcc_dir}include"
 417         ;;
 418
 419   m68hc11-*-*|m6811-*-*|m6812-*-*|m68hc12-*-*)
 420         ;;
 421
 422   m68k-sun-sunos*)
 423         unix_dir=unix
 424         ;;
 425   m8*-bug-*)
 426         sys_dir=m88kbug
 427         ;;
 428   mips*-dec-*)
 429         sys_dir=decstation
 430         ;;
 431   mmix-knuth-mmixware)
 432         sys_dir=mmixware
 433         ;;
 434   powerpcle-*-pe)
 435         posix_dir=posix
 436         ;;
 437   sh*-*)
 438         sys_dir=sh
 439         ;;
 440   sparc-sun-sunos*)
 441         sys_dir=sun4
 442         unix_dir=unix
 443         ;;
 444   sparc64*)
 445         sys_dir=sparc64
 446         unix_dir=unix
 447         ;;
 448   spu-*-*)
 449         default_newlib_io_long_long="yes"
 450         default_newlib_atexit_dynamic_alloc="no"
 451         ;;
 452   strongarm-*-*)
 453         sys_dir=arm
 454         if [ "x${newlib_may_supply_syscalls}" = "xno" ] ; then
 455           have_crt0="no"
 456         fi
 457         ;;
 458   thumb-*-*)
 459         sys_dir=arm
 460         if [ "x${newlib_may_supply_syscalls}" = "xno" ] ; then
 461           have_crt0="no"
 462         fi
 463         ;;
 464   tic80*)
 465         sys_dir=tic80
 466         ;;
 467   v70-nec-*)
 468         sys_dir=sysvnecv70
 469         ;;
 470   v810-*-*)
 471         sys_dir=sysnec810
 472         ;;
 473   v850-*-*)
 474         sys_dir=sysnecv850
 475         ;;
 476   v850e-*-*)
 477         sys_dir=sysnecv850
 478         ;;
 479   v850ea-*-*)
 480         sys_dir=sysnecv850
 481         ;;
 482   w65-*-*)
 483         sys_dir=w65
 484         ;;
 485   xscale-*-*)
 486         sys_dir=arm
 487         if [ "x${newlib_may_supply_syscalls}" = "xno" ] ; then
 488           have_crt0="no"
 489         fi
 490         ;;
 491   z8k-*-coff)
 492         sys_dir=z8ksim
 493         ;;
 494 esac
 495
 496 # Host specific flag settings -- usually for features that are not
 497 # general enough or broad enough to be handled above.
 498 # THIS TABLE IS ALPHA SORTED.  KEEP IT THAT WAY.
 499
 500 case "${host}" in
 501   *-*-cygwin*)
 502         test -z "$cygwin_srcdir" && cygwin_srcdir=`cd ${srcdir}/../winsup/cygwin; pwd`
 503         export cygwin_srcdir
 504         default_newlib_io_c99_formats="yes"
 505         default_newlib_io_long_long="yes"
 506         default_newlib_io_long_double="yes"
 507         default_newlib_io_pos_args="yes"
 508         CC="${CC} -I${cygwin_srcdir}/include"
 509         newlib_cflags="${newlib_cflags} -DHAVE_OPENDIR -DHAVE_RENAME -DSIGNAL_PROVIDED -D_COMPILING_NEWLIB -DHAVE_BLKSIZE -DHAVE_FCNTL -DMALLOC_PROVIDED"
 510         syscall_dir=syscalls
 511         ;;
 512 # RTEMS supplies its own versions of some routines:
 513 #       malloc()            (reentrant version)
 514 #       exit()              RTEMS has a "global" reent to flush
 515 #       signal()/raise()    RTEMS has its own including pthread signals
 516 #       _XYZ_r()            RTEMS has its own reentrant routines
 517 #
 518 #  NOTE: When newlib malloc uses a semaphore, RTEMS will switch to that.
 519   *-*-rtems*)
 520         default_newlib_io_long_long="yes"
 521         newlib_cflags="${newlib_cflags} -DMALLOC_PROVIDED -DEXIT_PROVIDED -DMISSING_SYSCALL_NAMES -DSIGNAL_PROVIDED -DREENTRANT_SYSCALLS_PROVIDED -DHAVE_OPENDIR -DNO_EXEC -DHAVE_FCNTL"
 522         ;;
 523 # VxWorks supplies its own version of malloc, and the newlib one
 524 # doesn't work because VxWorks does not have sbrk.
 525   *-wrs-vxworks*)
 526         newlib_cflags="${newlib_cflags} -DMALLOC_PROVIDED -DMISSING_SYSCALL_NAMES -DHAVE_FCNTL"
 527         ;;
 528 # UDI doesn't have exec, so system() should fail the right way
 529   a29k-amd-udi)
 530         newlib_cflags="${newlib_cflags} -DNO_EXEC"
 531         syscall_dir=syscalls
 532         ;;
 533   arc-*-*)
 534         syscall_dir=syscalls
 535         ;;
 536   arm-*-pe)
 537         syscall_dir=syscalls
 538         ;;
 539   arm-*-*)
 540         syscall_dir=syscalls
 541 # If newlib is supplying syscalls, select which debug protocol is being used.
 542 # ARM_RDP_MONITOR selects the Demon monitor.
 543 # ARM_RDI_MONITOR selects the Angel monitor.
 544 # If neither are defined, then hard coded defaults will be used
 545 # to create the program's environment.
 546 # If --disable-newlib-supplied-syscalls is specified, then the end-user
 547 # may specify the protocol via gcc spec files supplied by libgloss.
 548 # See also thumb below.
 549         if [ "x${newlib_may_supply_syscalls}" = "xyes" ] ; then
 550 #         newlib_cflags="${newlib_cflags} -DARM_RDP_MONITOR"
 551           newlib_cflags="${newlib_cflags} -DARM_RDI_MONITOR"
 552         fi
 553         ;;
 554   arc*)
 555         newlib_cflags="${newlib_cflags} -DREENTRANT_SYSCALLS_PROVIDED"
 556         ;;
 557   avr*)
 558         newlib_cflags="${newlib_cflags} -DNO_EXEC -DSMALL_MEMORY -DMISSING_SYSCALL_NAMES"
 559         ;;
 560   bfin*)
 561         syscall_dir=syscalls
 562         ;;
 563   cris-*-* | crisv32-*-*)
 564         default_newlib_io_long_long="yes"
 565         newlib_cflags="${newlib_cflags} -DHAVE_RENAME -D_USE_WRITE -DCOMPACT_CTYPE"
 566         syscall_dir=syscalls
 567         ;;
 568   crx-*-*)
 569         newlib_cflags="${newlib_cflags} -DHAVE_RENAME -DMISSING_SYSCALL_NAMES"
 570         syscall_dir=
 571         ;;
 572   d10v*)
 573         newlib_cflags="${newlib_cflags} -DSMALL_MEMORY"
 574         syscall_dir=syscalls
 575         ;;
 576   d30v*)
 577         newlib_cflags="${newlib_cflags} -DABORT_MESSAGE -DSMALL_MEMORY -DMISSING_SYSCALL_NAMES"
 578         syscall_dir=
 579         ;;
 580   ep9312-*-*)
 581         syscall_dir=syscalls
 582         if [ "x${newlib_may_supply_syscalls}" = "xyes" ] ; then
 583           newlib_cflags="${newlib_cflags} -DARM_RDI_MONITOR"
 584         fi
 585         ;;
 586   fido-*-elf)
 587         newlib_cflags="${newlib_cflags} -DHAVE_RENAME -DHAVE_SYSTEM -DMISSING_SYSCALL_NAMES"
 588         syscall_dir=
 589         ;;
 590   fr30-*-*)
 591         syscall_dir=syscalls
 592         ;;
 593   frv-*-*)
 594         syscall_dir=syscalls
 595         default_newlib_io_long_long="yes"
 596         ;;
 597   h8300*-*-*)
 598         syscall_dir=syscalls
 599         default_newlib_io_long_long="yes"
 600         newlib_cflags="${newlib_cflags} -DSMALL_DTOA -DSMALL_MEMORY"
 601         # Simulator only extensions for H8300.
 602         # Uncomment the next line to enable them.
 603         # newlib_cflags="${newlib_cflags} -D__SIMULATOR__"
 604         ;;
 605   h8500-*-*)
 606         syscall_dir=syscalls
 607         newlib_cflags="${newlib_cflags} -DSMALL_DTOA -DSMALL_MEMORY"
 608         ;;
 609   i[34567]86-*-sco*)
 610         newlib_cflags="${newlib_cflags} -DSIGNAL_PROVIDED -DHAVE_FCNTL"
 611         ;;
 612   i[34567]86-*-netware*)
 613         newlib_cflags="${newlib_cflags} -DMISSING_SYSCALL_NAMES -DNO_EXEC -DABORT_PROVIDED -DCLOCK_PROVIDED -DMALLOC_PROVIDED -DHAVE_FCNTL"
 614         ;;
 615   iq2000*)
 616         syscall_dir=syscalls
 617         default_newlib_io_long_long="yes"
 618         ;;
 619   m32r-*-*)
 620         # Pass -msdata=sdata so _impure_ptr goes in .sdata.
 621         # We don't generate sda relocs however for upward compatibility.
 622         # FIXME: This is necessary because the default multilib doesn't
 623         # use --print-multi-lib.
 624         newlib_cflags="${newlib_cflags} -msdata=sdata"
 625         syscall_dir=syscalls
 626         ;;
 627   m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
 628         newlib_cflags="${newlib_cflags} -DNO_EXEC -DABORT_PROVIDED -DSMALL_MEMORY -DMISSING_SYSCALL_NAMES"
 629         ;;
 630   m68k-unknown-elf)
 631         newlib_cflags="${newlib_cflags} -DHAVE_RENAME -DHAVE_SYSTEM -DMISSING_SYSCALL_NAMES"
 632         syscall_dir=
 633         ;;
 634   mcore-*-*)
 635         syscall_dir=syscalls
 636         ;;
 637   mips64vr*-*-*)
 638         default_newlib_io_long_long="yes"
 639         newlib_cflags="${newlib_cflags} -DMISSING_SYSCALL_NAMES"
 640         ;;
 641   mips*-*-elf*)
 642         default_newlib_io_long_long="yes"
 643         newlib_cflags="${newlib_cflags} -DMISSING_SYSCALL_NAMES"
 644         ;;
 645   mmix-*)
 646         syscall_dir=syscalls
 647         # We need every symbol 32-bit aligned, so the invalid
 648         # construct with attribute ((alias ("_ctype_b+127"))) breaks.
 649         newlib_cflags="${newlib_cflags} -DCOMPACT_CTYPE"
 650         ;;
 651   mn10?00-*-*)
 652         syscall_dir=syscalls
 653         ;;
 654   powerpc*-*-eabialtivec*)
 655         default_newlib_io_long_long="yes"
 656         newlib_cflags="${newlib_cflags} -DMISSING_SYSCALL_NAMES"
 657         ;;
 658   powerpc*-*-eabispe*)
 659         default_newlib_io_long_long="yes"
 660         newlib_cflags="${newlib_cflags} -DMISSING_SYSCALL_NAMES"
 661         ;;
 662   powerpc*-*-eabi* | \
 663   powerpc*-*-elf* | \
 664   powerpc*-*-linux* | \
 665   powerpc*-*-rtem* | \
 666   powerpc*-*-sysv* | \
 667   powerpc*-*-solaris*)
 668         default_newlib_io_long_long="yes"
 669         newlib_cflags="${newlib_cflags} -mrelocatable-lib -mno-eabi -mstrict-align -DMISSING_SYSCALL_NAMES"
 670         ;;
 671   powerpcle-*-pe)
 672         newlib_cflags="${newlib_cflags} -DHAVE_OPENDIR -DHAVE_RENAME -DHAVE_FCNTL"
 673         syscall_dir=syscalls
 674         ;;
 675   sh*-*-*)
 676         default_newlib_io_long_long="yes"
 677         syscall_dir=syscalls
 678         ;;
 679   sparc-sun-sunos*)
 680         newlib_cflags="${newlib_cflags} -DSIGNAL_PROVIDED"
 681         ;;
 682   sparc64-*-*)
 683         newlib_cflags="${newlib_cflags} -DREENTRANT_SYSCALLS_PROVIDED -DHAVE_BLKSIZE -DHAVE_FCNTL"
 684         # This either belongs elsewhere or nowhere. But I need *something*,
 685         # so for now it's here ...
 686         case "${host_os}" in
 687           aoutv8 | *32p)
 688                 newlib_cflags="${newlib_cflags} -DTARGET_PTR_SIZE=32" ;;
 689           *)
 690                 newlib_cflags="${newlib_cflags} -DTARGET_PTR_SIZE=64" ;;
 691         esac
 692         ;;
 693   strongarm-*-*)
 694         syscall_dir=syscalls
 695         ;;
 696   thumb-*-pe)
 697         syscall_dir=syscalls
 698 # Don't use the debugging protocols just yet.
 699         ;;
 700   thumb-*-*)
 701         syscall_dir=syscalls
 702 # If newlib is supplying syscalls, select which debug protocol is being used.
 703 # ARM_RDP_MONITOR selects the Demon monitor.
 704 # ARM_RDI_MONITOR selects the Angel monitor.
 705 # If neither are defined, then hard coded defaults will be used
 706 # to create the program's environment.
 707 # If --disable-newlib-supplied-syscalls is specified, then the end-user
 708 # may specify the protocol via gcc spec files supplied by libgloss.
 709         if [ "x${newlib_may_supply_syscalls}" = "xyes" ] ; then
 710 #         newlib_cflags="${newlib_cflags} -DARM_RDP_MONITOR"
 711           newlib_cflags="${newlib_cflags} -DARM_RDI_MONITOR"
 712         fi
 713         ;;
 714   tic80*)
 715         syscall_dir=syscalls
 716         ;;
 717   v850-*-*)
 718         syscall_dir=syscalls
 719         ;;
 720   v850e-*-*)
 721         syscall_dir=syscalls
 722         ;;
 723   v850ea-*-*)
 724         syscall_dir=syscalls
 725         ;;
 726   w65-*-*)
 727         syscall_dir=syscalls
 728         newlib_cflags="${newlib_cflags} -DSMALL_DTOA -DSMALL_MEMORY"
 729         ;;
 730   xscale-*-*)
 731         syscall_dir=syscalls
 732         newlib_cflags="${newlib_cflags} -DHAVE_SYSTEM -DHAVE_RENAME"
 733         if [ "x${newlib_may_supply_syscalls}" = "xyes" ] ; then
 734           newlib_cflags="${newlib_cflags} -DARM_RDI_MONITOR"
 735         fi
 736         ;;
 737   xstormy16-*-*)
 738         syscall_dir=syscalls
 739         ;;
 740   z8k-*-*)
 741         syscall_dir=syscalls
 742         ;;
 743   *)
 744         newlib_cflags="${newlib_cflags} -DMISSING_SYSCALL_NAMES"
 745         syscall_dir=
 746         ;;
 747 esac
 748
 749 # Use defaults for certain settings if not specified by user
 750
 751 # Enable C99 format support in I/O routines if requested.
 752 if [ "x${newlib_io_c99_formats}" = "x" ]; then
 753         if [ ${default_newlib_io_c99_formats} = "yes" ]; then
 754                 newlib_io_c99_formats="yes";
 755         fi
 756 fi
 757
 758 # Enable long long support in I/O routines if requested.
 759 if [ "x${newlib_io_long_long}" = "x" ]; then
 760         if [ ${default_newlib_io_long_long} = "yes" ]; then
 761                 newlib_io_long_long="yes";
 762         fi
 763 fi
 764
 765 # Enable long double support in I/O routines if requested.
 766 if [ "x${newlib_io_long_double}" = "x" ]; then
 767         if [ ${default_newlib_io_long_double} = "yes" ]; then
 768                 newlib_io_long_double="yes";
 769         fi
 770 fi
 771
 772 # Enable printf positional argument support if requested.
 773 if [ "x${newlib_io_pos_args}" = "x" ]; then
 774         if [ ${default_newlib_io_pos_args} = "yes" ]; then
 775                 newlib_io_pos_args="yes";
 776         fi
 777 fi
 778
 779 # Disable atexit dynamic allocation if requested.
 780 if [ "x${newlib_atexit_dynamic_alloc}" = "x" ]; then
 781         if [ ${default_newlib_atexit_dynamic_alloc} = "yes" ]; then
 782                 newlib_atexit_dynamic_alloc="yes";
 783         fi
 784 fi
 785
 786 if test -z "${have_crt0}" && test -n "${sys_dir}"; then
 787   have_crt0="yes"
 788 fi