611 lines
15 KiB
Plaintext
611 lines
15 KiB
Plaintext
# configure.host
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# This shell script handles all host based configuration for newlib.
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# It sets various shell variables based on the the host and the
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# configuration options. You can modify this shell script without
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# needing to rerun autoconf.
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# This shell script should be invoked as
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# . configure.host
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# If it encounters an error, it will exit with a message.
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# FIXME: This script is too complicated. It does things in too many
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# different ways. This was taken from the old Cygnus configure script
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# with only minor changes. It should be cleaned up.
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# FIXME: The general approach of picking and choosing which
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# directories to configure, other than machine_dir and sys_dir, is
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# potentially confusing.
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# It uses the following shell variables:
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# host The configuration host
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# host_cpu The configuration host CPU
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# newlib_mb --enable-newlib-mb ("yes", "no")
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# target_optspace --enable-target-optspace ("yes", "no", "")
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# It sets the following shell variables:
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# newlib_cflags Special CFLAGS to use when building
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# machine_dir Subdirectory of libc/machine to configure
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# sys_dir Subdirectory of libc/sys to configure
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# have_sys_mach_dir Is there a machine subdirectory in sys subdirectory
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# posix_dir "posix" to build libc/posix, "" otherwise
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# signal_dir "signal" to build libc/signal, "" otherwise
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# stdio64_dir "stdio64" to build libc/stdio64, "" otherwise
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# syscall_dir "syscalls" to build libc/syscalls, "" otherwise
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# unix_dir "unix" to build libc/unix, "" otherwise
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# use_libtool flag: use libtool to build newlib?
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# aext library extension - needed for libtool support
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# oext object file extension - needed for libtool support
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# crt1 name of crt1 object if one is provided
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# crt1_dir directory where crt1 object is found
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newlib_cflags=
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libm_machine_dir=
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machine_dir=
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sys_dir=
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posix_dir=
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signal_dir=signal
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stdio64_dir=
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syscall_dir=
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unix_dir=
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mach_add_setjmp=
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crt1=
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crt1_dir=
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use_libtool=no
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have_sys_mach_dir=no
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aext=a
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oext=o
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case "${target_optspace}:${host}" in
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yes:*)
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newlib_cflags="${newlib_cflags} -Os"
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;;
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:m32r-* | :d10v-* | :d30v-* | :avr-*)
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newlib_cflags="${newlib_cflags} -Os"
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;;
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no:* | :*)
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newlib_cflags="${newlib_cflags} -O2"
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;;
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esac
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# Get the source directories to use for the CPU type.
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# machine_dir should supply CPU dependent routines, such as setjmp.
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# newlib_cflags is passed to gcc when compiling.
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# THIS TABLE IS ALPHA SORTED. KEEP IT THAT WAY.
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case "${host_cpu}" in
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a29k)
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machine_dir=a29k
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;;
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arc)
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machine_dir=
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;;
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arm)
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machine_dir=arm
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;;
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avr*)
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newlib_cflags="${newlib_cflags} -DPREFER_SIZE_OVER_SPEED -mcall-prologues"
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;;
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d10v*)
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machine_dir=d10v
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;;
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d30v*)
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machine_dir=d30v
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;;
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fr30)
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machine_dir=fr30
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;;
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h8300)
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machine_dir=h8300
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;;
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h8500)
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machine_dir=h8500
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;;
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hppa*)
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machine_dir=hppa
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;;
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i960)
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machine_dir=i960
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;;
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i[3456]86)
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# Don't use for these since they provide their own setjmp.
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case ${host} in
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*-*-go32 | *-*-sco* | *-*-cygwin*)
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libm_machine_dir=i386
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machine_dir=i386
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;;
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*)
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libm_machine_dir=i386
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machine_dir=i386
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mach_add_setjmp=true
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;;
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esac
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;;
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ia64*)
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;;
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m32r*)
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machine_dir=m32r
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;;
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m68hc11|m6811|m68hc12|m6812)
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machine_dir=m68hc11
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newlib_cflags="-DPREFER_SIZE_OVER_SPEED -Os -mrelax"
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CFLAGS="-g -Os"
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;;
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m68*)
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machine_dir=m68k
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newlib_cflags="${newlib_cflags} -DCOMPACT_CTYPE"
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;;
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m88k)
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machine_dir=m88k
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newlib_cflags="${newlib_cflags} -m88000"
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;;
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m88110)
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machine_dir=m88k
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newlib_cflags="${newlib_cflags} -m88110"
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;;
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mcore)
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;;
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mips*)
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machine_dir=mips
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;;
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mmix)
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;;
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mn10200)
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machine_dir=mn10200
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;;
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mn10300)
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machine_dir=mn10300
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;;
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or16)
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;;
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or32)
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;;
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powerpc*)
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machine_dir=powerpc
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;;
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sh | sh64)
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machine_dir=sh
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;;
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sparc*)
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machine_dir=sparc
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# FIXME: Might wish to make MALLOC_ALIGNMENT more generic.
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newlib_cflags="${newlib_cflags} -DMALLOC_ALIGNMENT=8"
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;;
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strongarm)
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machine_dir=arm
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;;
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xscale)
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machine_dir=xscale
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;;
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thumb)
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machine_dir=arm
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;;
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tic80*)
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machine_dir=tic80
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;;
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v70)
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;;
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v810)
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;;
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v850)
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machine_dir=v850
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newlib_cflags="${newlib_cflags} -DPREFER_SIZE_OVER_SPEED -mv850 "
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;;
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v850e)
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machine_dir=v850
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newlib_cflags="${newlib_cflags} -DPREFER_SIZE_OVER_SPEED -mv850 "
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;;
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v850ea)
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machine_dir=v850
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newlib_cflags="${newlib_cflags} -DPREFER_SIZE_OVER_SPEED -mv850 "
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;;
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frv)
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machine_dir=frv
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;;
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w65*)
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machine_dir=w65
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;;
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xstormy16)
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machine_dir=xstormy16
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newlib_cflags="${newlib_cflags} -DMALLOC_PROVIDED"
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;;
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z8k)
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machine_dir=z8k
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;;
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*)
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echo '***' "Newlib does not support CPU ${host_cpu}" 1>&2
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exit 1
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;;
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esac
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# Disable thread support if requested.
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if [ "${newlib_multithread}" = "no" ] ; then
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newlib_cflags="${newlib_cflags} -D__SINGLE_THREAD__"
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fi
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# Enable multibyte support if requested.
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if [ "${newlib_mb}" = "yes" ] ; then
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newlib_cflags="${newlib_cflags} -DMB_CAPABLE"
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fi
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# Disable printf/scanf floating-point support if requested.
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if [ "${newlib_io_float}" = "no" ] ; then
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newlib_cflags="${newlib_cflags} -DNO_FLOATING_POINT"
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fi
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# Enable printf positional argument support if requested.
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if [ "${newlib_io_pos_args}" = "yes" ] ; then
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newlib_cflags="${newlib_cflags} -DWANT_IO_POS_ARGS"
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fi
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# Verify if shared newlib support is allowed and set appropriate variables
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# We don't want to use libtool for platforms that we are not going to
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# support shared libraries. This is because it adds executable tests which
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# we don't want for most embedded platforms.
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case "${host}" in
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i[3456]86-pc-linux-*)
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use_libtool=yes
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have_sys_mach_dir=yes
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stdio64_dir=stdio64
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oext=lo
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aext=la ;;
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*) ;; #shared library not supported for ${host}
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esac
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# Get the source directories to use for the host. unix_dir is set
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# to unix to get some standard Unix routines. posix_dir is set to get some
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# standard Posix routines. sys_dir should supply system dependent routines
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# including crt0.
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# THIS TABLE IS ALPHA SORTED. KEEP IT THAT WAY.
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case "${host}" in
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*-*-cygwin*)
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sys_dir=cygwin
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posix_dir=posix
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;;
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*-*-netware*)
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signal_dir=
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sys_dir=netware
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;;
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*-*-rtems*) # generic RTEMS support
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sys_dir=rtems
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# RTEMS POSIX support is all inside RTEMS
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;;
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a29k-*-*)
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sys_dir=a29khif
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signal_dir=
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;;
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arc-*-*)
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sys_dir=arc
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;;
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arm-*-*)
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sys_dir=arm
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;;
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d10v*)
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sys_dir=d10v
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;;
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d30v*)
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sys_dir=
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;;
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h8300-*-hms*)
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sys_dir=h8300hms
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;;
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h8300-*-elf*)
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sys_dir=h8300hms
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;;
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h8300-*-coff*)
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sys_dir=h8300hms
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;;
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h8300-*-xray*)
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sys_dir=h8300xray
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;;
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h8500-*-hms*)
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sys_dir=h8500hms
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;;
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h8500-*-elf*)
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sys_dir=h8500hms
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;;
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i[3456]86-*-go32)
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sys_dir=go32
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;;
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i[3456]86-*-sco*)
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sys_dir=sysvi386
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unix_dir=unix
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;;
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i[3456]86-pc-linux-*)
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sys_dir=linux
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unix_dir=unix
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posix_dir=posix
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crt1=crt1.o
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crt1_dir=libc/sys/${sys_dir}
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gcc_dir=`gcc -print-search-dirs | awk '/^install:/{print $2}'`
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#newlib_cflags="${newlib_cflags} -Werror" # DEBUGGING ONLY;BREAKS BUILD
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newlib_cflags="${newlib_cflags} -Wall"
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newlib_cflags="${newlib_cflags} -D_I386MACH_ALLOW_HW_INTERRUPTS"
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newlib_cflags="${newlib_cflags} -D_LOOSE_KERNEL_NAMES -DHAVE_FCNTL"
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newlib_cflags="${newlib_cflags} -DWANT_IO_POS_ARGS"
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# --- Required when building a shared library ------------------------
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newlib_cflags="${newlib_cflags} -fPIC -D_I386MACH_NEED_SOTYPE_FUNCTION"
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# --- The three lines below are optional ------------------------------
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##newlib_cflags="${newlib_cflags} -nostdinc"
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##newlib_cflags="${newlib_cflags} -I`newlib-flags --kernel-dir`/include"
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##newlib_cflags="${newlib_cflags} -idirafter ${gcc_dir}include"
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;;
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m68hc11-*-*|m6811-*-*|m6812-*-*|m68hc12-*-*)
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;;
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m68k-sun-sunos*)
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unix_dir=unix
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;;
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m8*-bug-*)
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sys_dir=m88kbug
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;;
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mips*-dec-*)
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sys_dir=decstation
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;;
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mmix-knuth-mmixware)
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sys_dir=mmixware
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;;
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powerpcle-*-pe)
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sys_dir=cygwin
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posix_dir=posix
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;;
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sh*-*)
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sys_dir=sh
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;;
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sparc-sun-sunos*)
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sys_dir=sun4
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unix_dir=unix
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;;
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sparc64*)
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sys_dir=sparc64
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unix_dir=unix
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;;
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strongarm-*-*)
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sys_dir=arm
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;;
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xscale-*-*)
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sys_dir=arm
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;;
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thumb-*-*)
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sys_dir=arm
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;;
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tic80*)
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sys_dir=tic80
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;;
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v70-nec-*)
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sys_dir=sysvnecv70
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;;
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v810-*-*)
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sys_dir=sysnec810
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;;
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v850-*-*)
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sys_dir=sysnecv850
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;;
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v850e-*-*)
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sys_dir=sysnecv850
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;;
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v850ea-*-*)
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sys_dir=sysnecv850
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;;
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frv*)
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sys_dir=
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;;
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w65-*-*)
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sys_dir=w65
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;;
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z8k-*-coff)
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sys_dir=z8ksim
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;;
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esac
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# Host specific flag settings -- usually for features that are not
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# general enough or broad enough to be handled above.
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# THIS TABLE IS ALPHA SORTED. KEEP IT THAT WAY.
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case "${host}" in
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*-*-cygwin*)
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newlib_cflags="${newlib_cflags} -DHAVE_OPENDIR -DHAVE_RENAME -DSIGNAL_PROVIDED -DWANT_IO_LONG_DBL -DWANT_PRINTF_LONG_LONG -D_COMPILING_NEWLIB -DHAVE_FCNTL"
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# CYGWIN provides its own malloc if --enable-malloc-debugging is set
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if [ "x${malloc_debugging}" = "xyes" ] ; then
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newlib_cflags="${newlib_cflags} -DMALLOC_PROVIDED"
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fi
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syscall_dir=syscalls
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;;
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# RTEMS supplies its own versions of some routines:
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# malloc() (reentrant version)
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# exit() RTEMS has a "global" reent to flush
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# signal()/raise() RTEMS has its own including pthread signals
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# _XYZ_r() RTEMS has its own reentrant routines
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#
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# NOTE: When newlib malloc uses a semaphore, RTEMS will switch to that.
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*-*-rtems*)
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newlib_cflags="${newlib_cflags} -DHAVE_GETTIMEOFDAY -DMALLOC_PROVIDED -DEXIT_PROVIDED -DMISSING_SYSCALL_NAMES -DSIGNAL_PROVIDED -DREENTRANT_SYSCALLS_PROVIDED -DHAVE_OPENDIR -DNO_EXEC -DWANT_PRINTF_LONG_LONG -DHAVE_FCNTL"
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;;
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# VxWorks supplies its own version of malloc, and the newlib one
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# doesn't work because VxWorks does not have sbrk.
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*-wrs-vxworks*)
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newlib_cflags="${newlib_cflags} -DMALLOC_PROVIDED -DMISSING_SYSCALL_NAMES -DHAVE_FCNTL"
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;;
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# UDI doesn't have exec, so system() should fail the right way
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a29k-amd-udi)
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newlib_cflags="${newlib_cflags} -DNO_EXEC"
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syscall_dir=syscalls
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;;
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arc-*-*)
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syscall_dir=syscalls
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;;
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arm-*-pe)
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syscall_dir=syscalls
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newlib_cflags="${newlib_cflags} -DABORT_PROVIDED -DHAVE_GETTIMEOFDAY"
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# Don't use the debugging protocols just yet.
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;;
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arm-*-*)
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syscall_dir=syscalls
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newlib_cflags="${newlib_cflags} -DABORT_PROVIDED -DHAVE_GETTIMEOFDAY"
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# Select which debug protocol is being used.
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# ARM_RDP_MONITOR selects the Demon monitor.
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# ARM_RDI_MONITOR selects the Angel monitor.
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# If neither are defined, then hard coded defaults will be used
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# to create the program's environment.
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# See also thumb below.
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# newlib_cflags="${newlib_cflags} -DARM_RDP_MONITOR"
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newlib_cflags="${newlib_cflags} -DARM_RDI_MONITOR"
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;;
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avr*)
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newlib_cflags="${newlib_cflags} -DNO_EXEC -DSMALL_MEMORY -DMISSING_SYSCALL_NAMES"
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;;
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d10v*)
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newlib_cflags="${newlib_cflags} -DSMALL_MEMORY"
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syscall_dir=syscalls
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;;
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d30v*)
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newlib_cflags="${newlib_cflags} -DABORT_MESSAGE -DSMALL_MEMORY -DMISSING_SYSCALL_NAMES"
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syscall_dir=
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;;
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fr30-*-*)
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newlib_cflags="${newlib_cflags}"
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syscall_dir=syscalls
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;;
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h8300*-*-*)
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syscall_dir=syscalls
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newlib_cflags="${newlib_cflags} -DSMALL_DTOA -DSMALL_MEMORY"
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;;
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h8500-*-*)
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syscall_dir=syscalls
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newlib_cflags="${newlib_cflags} -DSMALL_DTOA -DSMALL_MEMORY"
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;;
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i[3456]86-*-sco*)
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newlib_cflags="${newlib_cflags} -DSIGNAL_PROVIDED -DHAVE_FCNTL"
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;;
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i[3456]86-*-netware*)
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newlib_cflags="${newlib_cflags} -DMISSING_SYSCALL_NAMES -DNO_EXEC -DABORT_PROVIDED -DCLOCK_PROVIDED -DMALLOC_PROVIDED -DHAVE_FCNTL"
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;;
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i[3456]86-*-go32)
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newlib_cflags="${newlib_cflags} -DMISSING_SYSCALL_NAMES -DNO_EXEC -DHAVE_FCNTL"
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;;
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m32r-*-*)
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# Pass -msdata=sdata so _impure_ptr goes in .sdata.
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# We don't generate sda relocs however for upward compatibility.
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# FIXME: This is necessary because the default multilib doesn't
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# use --print-multi-lib.
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newlib_cflags="${newlib_cflags} -msdata=sdata"
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syscall_dir=syscalls
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;;
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m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
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newlib_cflags="${newlib_cflags} -DNO_EXEC -DABORT_PROVIDED -DSMALL_MEMORY -DMISSING_SYSCALL_NAMES"
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;;
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mcore-*-*)
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newlib_cflags="${newlib_cflags}"
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syscall_dir=syscalls
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;;
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mmix-*)
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syscall_dir=syscalls
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# We need every symbol 32-bit aligned, so the invalid
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# construct with attribute ((alias ("_ctype_b+127"))) breaks.
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newlib_cflags="${newlib_cflags} -DCOMPACT_CTYPE"
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;;
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mn10?00-*-*)
|
|
syscall_dir=syscalls
|
|
;;
|
|
powerpc*-*-eabialtivec*)
|
|
newlib_cflags="${newlib_cflags} -DMISSING_SYSCALL_NAMES -DWANT_PRINTF_LONG_LONG"
|
|
;;
|
|
powerpc*-*-eabi* | \
|
|
powerpc*-*-elf* | \
|
|
powerpc*-*-linux* | \
|
|
powerpc*-*-rtem* | \
|
|
powerpc*-*-sysv* | \
|
|
powerpc*-*-solaris*)
|
|
newlib_cflags="${newlib_cflags} -mrelocatable-lib -mno-eabi -mstrict-align -DMISSING_SYSCALL_NAMES -DWANT_PRINTF_LONG_LONG"
|
|
;;
|
|
powerpcle-*-pe)
|
|
newlib_cflags="${newlib_cflags} -DHAVE_OPENDIR -DHAVE_RENAME -DHAVE_FCNTL"
|
|
syscall_dir=syscalls
|
|
;;
|
|
sh*-*-*)
|
|
newlib_cflags="${newlib_cflags} -DHAVE_GETTIMEOFDAY -DWANT_PRINTF_LONG_LONG"
|
|
syscall_dir=syscalls
|
|
;;
|
|
sparc-sun-sunos*)
|
|
newlib_cflags="${newlib_cflags} -DSIGNAL_PROVIDED"
|
|
;;
|
|
sparc64-*-*)
|
|
newlib_cflags="${newlib_cflags} -DREENTRANT_SYSCALLS_PROVIDED -DHAVE_BLKSIZE -DHAVE_GETTIMEOFDAY -DHAVE_FCNTL"
|
|
# This either belongs elsewhere or nowhere. But I need *something*,
|
|
# so for now it's here ...
|
|
case "${host_os}" in
|
|
aoutv8 | *32p)
|
|
newlib_cflags="${newlib_cflags} -DTARGET_PTR_SIZE=32" ;;
|
|
*)
|
|
newlib_cflags="${newlib_cflags} -DTARGET_PTR_SIZE=64" ;;
|
|
esac
|
|
;;
|
|
strongarm-*-*)
|
|
syscall_dir=syscalls
|
|
newlib_cflags="${newlib_cflags} -DABORT_PROVIDED -DHAVE_GETTIMEOFDAY"
|
|
newlib_cflags="${newlib_cflags} -DARM_RDI_MONITOR"
|
|
;;
|
|
xscale-*-*)
|
|
syscall_dir=syscalls
|
|
newlib_cflags="${newlib_cflags} -DABORT_PROVIDED -DHAVE_GETTIMEOFDAY"
|
|
newlib_cflags="${newlib_cflags} -DARM_RDI_MONITOR"
|
|
newlib_cflags="${newlib_cflags} -DHAVE_SYSTEM -DHAVE_RENAME"
|
|
;;
|
|
thumb-*-pe)
|
|
syscall_dir=syscalls
|
|
newlib_cflags="${newlib_cflags} -DABORT_PROVIDED -DHAVE_GETTIMEOFDAY"
|
|
# Don't use the debugging protocols just yet.
|
|
;;
|
|
thumb-*-*)
|
|
syscall_dir=syscalls
|
|
newlib_cflags="${newlib_cflags} -DABORT_PROVIDED -DHAVE_GETTIMEOFDAY"
|
|
# Select which debug protocol is being used.
|
|
# ARM_RDP_MONITOR selects the Demon monitor.
|
|
# ARM_RDI_MONITOR selects the Angel monitor.
|
|
# If neither are defined, then hard coded defaults will be used
|
|
# to create the program's environment.
|
|
# See also arm and strongarm above.
|
|
# newlib_cflags="${newlib_cflags} -DARM_RDP_MONITOR"
|
|
newlib_cflags="${newlib_cflags} -DARM_RDI_MONITOR"
|
|
;;
|
|
tic80*)
|
|
syscall_dir=syscalls
|
|
;;
|
|
v850-*-*)
|
|
syscall_dir=syscalls
|
|
;;
|
|
v850e-*-*)
|
|
syscall_dir=syscalls
|
|
;;
|
|
v850ea-*-*)
|
|
syscall_dir=syscalls
|
|
;;
|
|
frv-*-*)
|
|
syscall_dir=syscalls
|
|
newlib_cflags="${newlib_cflags} -DWANT_PRINTF_LONG_LONG"
|
|
;;
|
|
w65-*-*)
|
|
syscall_dir=syscalls
|
|
newlib_cflags="${newlib_cflags} -DSMALL_DTOA -DSMALL_MEMORY"
|
|
;;
|
|
xstormy16-*-*)
|
|
newlib_cflags="${newlib_cflags} -DHAVE_GETTIMEOFDAY"
|
|
syscall_dir=syscalls
|
|
;;
|
|
z8k-*-*)
|
|
syscall_dir=syscalls
|
|
;;
|
|
*)
|
|
newlib_cflags="${newlib_cflags} -DMISSING_SYSCALL_NAMES"
|
|
syscall_dir=
|
|
;;
|
|
esac
|