Subversion Repositories or1k

# This file is a shell script fragment that supplies the information
# necessary to tailor a template configure script into the configure
# script appropriate for this directory.  For more information, check
# any existing configure script.

# We need multilib support.
# For now default to enabled.
if [ "${enable_multilib}" = "" ]; then
        enable_multilib=yes
fi

srctrigger=Makefile.in
srcname="libc"
target_dependent=true

# newlib is configured for a particular target.  It must be built with
# a build environment providing tools for that target.  This means
# that "configure sun4 -target vxworks68" will build a library which
# can be used on vxworks68; the sun4 is essentially ignored, and there
# must be a build environment which will generate vxworks68 tools.  A
# simple "configure sun4" will build a library which can be used on a
# sun4.

# Unfortunately, newlib does have one program which must run on the
# host, namely makedoc, which is used to build documentation.

# newlib does not test any features of the build environment (the
# host).  It needs cc, as, ar, and ranlib for the target.

if [ -z "${with_multisubdir}" ]; then
  configdirs="doc"
fi

# per-host:

# This is basically a hack so that we don't have to replicate the same
# defines in all the Makefiles.  We put a standard set of definitions
# in host/any, and use them everywhere.

host_makefile_frag=host/any

# per-target:

newlib_target=

case "${enable_target_optspace}:${target}" in
  yes:*)
    target_cflags="-Os"
    ;;
  :m32r-* |  :d10v-*)
    target_cflags="-Os"
    ;;
  no:* | :*)
    target_cflags="-O2"
    ;;
  *)
    echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
    target_cflags="-O2"
    ;;
esac

unix_dir=
libc_unix_lib=
posix_dir=
libc_posix_lib=
signal_dir=signal
libc_signal_lib=
machine_dir=
libc_machine_lib=
sys_dir=
libc_sys_lib=
syscall_dir=
libc_syscall_lib=

files=
links=

# Get the source directories to use for the CPU type.
# machine_dir should supply CPU dependent routines, such as setjmp.
# target_cflags is passed to gcc when compiling.
# THIS TABLE IS SORTED.  KEEP IT THAT WAY.

case "${target_cpu}" in
  a29k)
        machine_dir=a29k
        ;;
  arc)
        machine_dir=
        ;;
  arm)
        machine_dir=arm
        ;;
  d10v*)
        machine_dir=d10v
        ;;
  h8300)
        machine_dir=h8300
        ;;
  h8500)
        machine_dir=h8500
        ;;
  hppa*)
        machine_dir=hppa
        ;;
  i960)
        machine_dir=i960
        ;;
  i[3456]86)
        # Don't use for these since they provide their own setjmp.
        case ${target} in
        *-*-go32 | *-*-sco* | *-*-cygwin32) machine_dir= ;;
        *) machine_dir=i386 ;;
        esac
        ;;
  m32r*)
        machine_dir=m32r
        ;;
  m68*)
        machine_dir=m68k
        ;;
  m88k)
        machine_dir=m88k
        target_cflags="-m88000"
        ;;
  m88110)
        machine_dir=m88k
        target_cflags="-m88110"
        ;;
  mips*)
        machine_dir=mips
        ;;
  mn10200)
        machine_dir=mn10200
        ;;
  mn10300)
        machine_dir=mn10300
        ;;
  powerpc*)
        machine_dir=powerpc
        ;;
  or32)
        machine_dir=or32
        ;;
  sh)
        machine_dir=sh
        ;;
  sparc*)
        machine_dir=sparc
        # FIXME: Might wish to make MALLOC_ALIGNMENT more generic.
        target_cflags="${target_cflags} -DMALLOC_ALIGNMENT=8"
        ;;
  thumb)
        machine_dir=arm
        ;;
  v70)
        ;;
  v810)
        ;;
  v850)
        machine_dir=v850
        target_cflags="-DPREFER_SIZE_OVER_SPEED -mv850 -msmall-sld -mno-app-regs"
        ;;
  w65*)
        fp_dir=ieeefp
        machine_dir=w65
        ;;
  z8k)
        machine_dir=z8k
        ;;
  *)
        echo '***' "Newlib does not support target cpu ${target_cpu}" 1>&2
        exit 1
        ;;
esac

if [ x"${enable_newlib_mb}" != x ] ; then
        target_cflags="${target_cflags} -DMB_CAPABLE "
fi

# Get the source directories to use for the target.  unix_dir is set
# to unix to get some standard Unix routines.  posix_dir is set to get some
# standard Posix routines.  sys_dir should supply system dependent routines
# including crt0.
# THIS TABLE IS SORTED.  KEEP IT THAT WAY.

case "${target}" in
  *-*-cygwin32)
        sys_dir=cygwin32
        posix_dir=posix
        ;;
  *-*-netware*)
        signal_dir=
        sys_dir=netware
        ;;
  *-*-rtems*)                   # generic RTEMS support
        sys_dir=rtems
        ;;
  a29k-*-*)
        sys_dir=a29khif
        signal_dir=
        ;;
  arc-*-*)
        sys_dir=arc
        ;;
  arm-*-*)
        sys_dir=arm 
        ;;
  d10v*)
        sys_dir=d10v
        ;;
  h8300-*-hms*)
        sys_dir=h8300hms
        ;;
  h8300-*-xray*)
        sys_dir=h8300xray
        ;;
  h8500-*-hms*)
        sys_dir=h8500hms
        ;;
  i[3456]86-*-go32)
        sys_dir=go32
        ;;
  i[3456]86-*-sco*)
        sys_dir=sysvi386
        unix_dir=unix
        ;;
  m68k-sun-sunos*)
        unix_dir=unix
        ;;
  m8*-bug-*)
        sys_dir=m88kbug
        ;;
  mn10200-*-*)
        sys_dir=sysmec
        ;;
  mips*-dec-*)
        sys_dir=decstation
        ;;
  powerpcle-*-pe)
        sys_dir=cygwin32
        posix_dir=posix
        ;;
  sh*-*)
        sys_dir=sh
        ;;
  sparc-sun-sunos*)
        sys_dir=sun4
        unix_dir=unix
        ;;
  sparc64*)
        sys_dir=sparc64
        unix_dir=unix
        ;;
  thumb-*-*)
        sys_dir=arm 
        ;;
  v70-nec-*)
        sys_dir=sysvnecv70
        ;;
  v810-*-*)
        sys_dir=sysnec810
        ;;
  v850-*-*)
        sys_dir=sysnecv850
        ;;
  w65-*-*)
        sys_dir=w65
        ;;
  z8k-*-coff)
        sys_dir=z8ksim
        ;;
esac

# Target specific flag settings -- usually for features that are not
# general enough or broad enough to be handled above.
# THIS TABLE IS SORTED.  KEEP IT THAT WAY.

case "${target}" in
  *-*-cygwin32)
        target_cflags="${target_cflags} -DHAVE_OPENDIR -DHAVE_RENAME -DSIGNAL_PROVIDED"
        syscall_dir=syscalls
        fake_sys_dir=
        ;;
# RTEMS supplies its own versions of some routines:
#       malloc()            (reentrant version)
#       exit()              RTEMS has a "global" reent to flush
#       signal()/raise()    RTEMS has its own including pthread signals
#       _XYZ_r()            RTEMS has its own reentrant routines
#
#  NOTE: When newlib malloc uses a semaphore, RTEMS will switch to that.
  *-*-rtems*)
        target_cflags="${target_cflags} -DHAVE_GETTIMEOFDAY -DMALLOC_PROVIDED -DEXIT_PROVIDED -DMISSING_SYSCALL_NAMES -DSIGNAL_PROVIDED -DREENTRANT_SYSCALLS_PROVIDED"
        ;;
# VxWorks supplies its own version of malloc, and the newlib one
# doesn't work because VxWorks does not have sbrk.
  *-wrs-vxworks*)
        target_cflags="${target_cflags} -DMALLOC_PROVIDED -DMISSING_SYSCALL_NAMES"
        ;;
# UDI doesn't have exec, so system() should fail the right way
  a29k-amd-udi)
        target_cflags="${target_cflags} -DNO_EXEC"
        syscall_dir=syscalls
        ;;
  arc-*-*)
        syscall_dir=syscalls
        ;;
  arm-*-pe)
        syscall_dir=syscalls
        target_cflags="${target_cflags} -DABORT_PROVIDED -DHAVE_GETTIMEOFDAY"
# Don't use the debugging protocols just yet.
        ;;
  arm-*-*)
        syscall_dir=syscalls
        target_cflags="${target_cflags} -DABORT_PROVIDED -DHAVE_GETTIMEOFDAY"
# Select which debug protocol is being used.
# ARM_RDP_MONITOR selects the Demon monitor.
# ARM_RDI_MONITOR selects the Angel monitor.
# If neither are defined, then hard coded defaults will be used
# to create the program's environment.
# See also thumb target below.
        target_cflags="${target_cflags} -DARM_RDP_MONITOR"
#       target_cflags="${target_cflags} -DARM_RDI_MONITOR"
        ;;
  d10v*)
        target_cflags="${target_cflags} -DSMALL_MEMORY"
        syscall_dir=syscalls
        ;;
  h8300*-*-*)
        syscall_dir=syscalls    
        target_cflags="${target_cflags} -DSMALL_DTOA -DSMALL_MEMORY"
        ;;      
  h8500-*-*)
        syscall_dir=syscalls    
        target_cflags="${target_cflags} -DSMALL_DTOA -DSMALL_MEMORY"
        ;;      
  i[3456]86-*-sco*)
        target_cflags="${target_cflags} -DSIGNAL_PROVIDED"
        ;;
  i[3456]86-*-netware*)
        target_cflags="${target_cflags} -DMISSING_SYSCALL_NAMES -DNO_EXEC -DABORT_PROVIDED -DCLOCK_PROVIDED -DMALLOC_PROVIDED"
        ;;
  i[3456]86-*-go32)
        target_cflags="${target_cflags} -DMISSING_SYSCALL_NAMES -DNO_EXEC"
        fake_sys_dir=
        ;;
  m32r-*-*)
        # Pass -msdata=sdata so _impure_ptr goes in .sdata.
        # We don't generate sda relocs however for upward compatibility.
        # FIXME: This is necessary because the default multilib doesn't
        # use --print-multi-lib.
        target_cflags="${target_cflags} -msdata=sdata"
        syscall_dir=syscalls
        ;;
  mn10?00-*-*)
        syscall_dir=syscalls
        ;;
  powerpc*-*-eabi* | \
  powerpc*-*-elf* | \
  powerpc*-*-linux* | \
  powerpc*-*-rtem* | \
  powerpc*-*-sysv* | \
  powerpc*-*-solaris*)
        target_cflags="${target_cflags} -mrelocatable-lib -mno-eabi -mstrict-align -DMISSING_SYSCALL_NAMES"
        ;;
  powerpcle-*-pe)
        target_cflags="${target_cflags} -DHAVE_OPENDIR -DHAVE_RENAME"
        syscall_dir=syscalls
        ;;
  sh*-*-*)
        syscall_dir=syscalls
        ;;
  sparc-sun-sunos*)
        target_cflags="${target_cflags} -DSIGNAL_PROVIDED"
        ;;
  sparc64-*-*)
        target_cflags="${target_cflags} -DREENTRANT_SYSCALLS_PROVIDED -DHAVE_BLKSIZE -DHAVE_GETTIMEOFDAY"
        # This either belongs elsewhere or nowhere. But I need *something*,
        # so for now it's here ...
        case "${target_os}" in
          aoutv8 | *32p)
                target_cflags="${target_cflags} -DTARGET_PTR_SIZE=32" ;;
          *)
                target_cflags="${target_cflags} -DTARGET_PTR_SIZE=64" ;;
        esac
        ;;
  thumb-*-pe)
        syscall_dir=syscalls
        target_cflags="${target_cflags} -DABORT_PROVIDED -DHAVE_GETTIMEOFDAY"
# Don't use the debugging protocols just yet.
        ;;
  thumb-*-*)
        syscall_dir=syscalls
        target_cflags="${target_cflags} -DABORT_PROVIDED -DHAVE_GETTIMEOFDAY"
# Select which debug protocol is being used.
# ARM_RDP_MONITOR selects the Demon monitor.
# ARM_RDI_MONITOR selects the Angel monitor.
# If neither are defined, then hard coded defaults will be used
# to create the program's environment.
# See also arm target above.
        target_cflags="${target_cflags} -DARM_RDP_MONITOR"
#       target_cflags="${target_cflags} -DARM_RDI_MONITOR"
        ;;
  v850-*-*)
        syscall_dir=syscalls
        ;;
  w65-*-*)
        syscall_dir=syscalls    
        target_cflags="${target_cflags} -DSMALL_DTOA -DSMALL_MEMORY"
        ;;      
  z8k-*-*)
        syscall_dir=syscalls
        ;;
  *)
        target_cflags="${target_cflags} -DMISSING_SYSCALL_NAMES"
        syscall_dir=
        ;;
esac

# Determine subdirs based on unix_dir, posix_dir, signal_dir, machine_dir
# and sys_dir.  Subdirs is the list of directories whose Makefiles we edit.

subdirs="libc libc/ctype libc/errno libc/locale libc/misc libc/reent libc/stdio libc/stdlib libc/string libc/time libm libm/math"

for i in testsuite testsuite/libm.paranoia testsuite/libm.sac ; do
        if [ -d ${srcdir}/$i ] ; then
                subdirs="${subdirs} $i"
        fi
done

if [ ! -z "${unix_dir}" ]; then
        subdirs="${subdirs} libc/${unix_dir}"
        libc_unix_lib=${unix_dir}/lib.a
fi

if [ ! -z "${posix_dir}" ]; then
        subdirs="${subdirs} libc/${posix_dir}"
        libc_posix_lib=${posix_dir}/lib.a
fi

if [ ! -z "${signal_dir}" ]; then
        subdirs="${subdirs} libc/${signal_dir}"
        libc_signal_lib=${signal_dir}/lib.a
fi

if [ ! -z "${machine_dir}" ]; then
        subdirs="${subdirs} libc/machine libc/machine/${machine_dir}"
        libc_machine_lib=machine/lib.a
fi

if [ ! -z "${sys_dir}" ]; then
        subdirs="${subdirs} libc/sys libc/sys/${sys_dir}"
        libc_sys_lib=sys/lib.a
fi

if [ ! -z "${syscall_dir}" ]; then
        subdirs="${subdirs} libc/${syscall_dir}"
        libc_syscall_lib=${syscall_dir}/lib.a
fi

# If newlib_target is set, it is a target specific Makefile fragment.
# At the moment, no target needs one.
if [ ! -z "${newlib_target}" ]; then
        target_makefile_frag=config/${newlib_target}.mt
        echo "USING ${target_makefile_frag}..."
fi

# if sys_dir is set, then crt0 is built there.
if [ ! -z "${sys_dir}" ] ; then
        crt0=crt0.o
        crt0_dir=libc
fi

# end of per-target determination

# post-target:

# We want the Makefile to know machine_dir, sys_dir, signal_dir,
# and TARGET_CFLAGS, but we don't want to use a tiny Makefile fragment
# for each one.  So we use sed to edit the Makefile directly.  This
# isn't the way most of the tools work, but it saves Makefile fragments.

# Actually, this is pretty silly.  In general, each of these is used
# by only one makefile.  Keeping them here rather than with their
# associated makefiles is rather wasteful and counterintuitive.

sed -e "s:^machine_dir[         ]*=.*$:machine_dir = ${machine_dir}:" \
    -e "s:^sys_dir[     ]*=.*$:sys_dir = ${sys_dir}:" \
    -e "s:^signal_dir[  ]*=.*$:signal_dir = ${signal_dir}:" \
    -e "s:^TARGET_CFLAGS[       ]*=.*$:TARGET_CFLAGS = ${target_cflags}:" \
   -e "s:^LIBC_UNIX_LIB[        ]*=.*$:LIBC_UNIX_LIB = ${libc_unix_lib}:" \
   -e "s:^LIBC_POSIX_LIB[       ]*=.*$:LIBC_POSIX_LIB = ${libc_posix_lib}:" \
   -e "s:^LIBC_SIGNAL_LIB[      ]*=.*$:LIBC_SIGNAL_LIB = ${libc_signal_lib}:" \
   -e "s:^LIBC_MACHINE_LIB[     ]*=.*$:LIBC_MACHINE_LIB = ${libc_machine_lib}:" \
   -e "s:^LIBC_SYS_LIB[         ]*=.*$:LIBC_SYS_LIB = ${libc_sys_lib}:" \
   -e "s:^LIBC_SYSCALL_LIB[     ]*=.*$:LIBC_SYSCALL_LIB = ${libc_syscall_lib}:" \
   -e "s:^CRT0[         ]*=.*$:CRT0 = ${crt0}:" \
   -e "s:^CRT0_DIR[     ]*=.*$:CRT0_DIR = ${crt0_dir}:" \
        ${Makefile} > Makefile.tem
rm -f ${Makefile}
mv Makefile.tem ${Makefile}

# We need multilib support.
if [ "${srcdir}" = "." ] ; then
  if [ "${with_target_subdir}" != "." ] ; then
    . ${with_multisrctop}../../config-ml.in
  else
    . ${with_multisrctop}../config-ml.in
  fi
else
  . ${srcdir}/../config-ml.in
fi