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