2005-08-10 DJ Delorie <dj@redhat.com>
* configure.host: Add m32c support.
* libc/include/machine/ieeefp.h: Likewise.
* libc/include/machine/setjmp.h: Likewise.
* libc/include/sys/config.h: Likewise.
* libc/machine/m32c: New directory, Renesas R8C/M16C/M32C support.
* libc/machine/m32c/aclocal.m4: New file.
* libc/machine/m32c/configure: Ditto.
* libc/machine/m32c/configure.in: Ditto.
* libc/machine/m32c/Makefile.am: Ditto.
* libc/machine/m32c/Makefile.in: Ditto.
* libc/machine/m32c/setjmp.S: Ditto.
This commit is contained in:
Jeff Johnston
parent
250996a91b
commit
56448afa06
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@ -1,7 +1,21 @@
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2005-08-10 DJ Delorie <dj@redhat.com>
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* configure.host: Add m32c support.
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* libc/include/machine/ieeefp.h: Likewise.
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* libc/include/machine/setjmp.h: Likewise.
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* libc/include/sys/config.h: Likewise.
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* libc/machine/m32c: New directory, Renesas R8C/M16C/M32C support.
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* libc/machine/m32c/aclocal.m4: New file.
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* libc/machine/m32c/configure: Ditto.
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* libc/machine/m32c/configure.in: Ditto.
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* libc/machine/m32c/Makefile.am: Ditto.
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* libc/machine/m32c/Makefile.in: Ditto.
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* libc/machine/m32c/setjmp.S: Ditto.
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2005-08-02 Bob Wilson <bob.wilson@acm.org>
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* libm/math/ef_hypot.c (__ieee754_hypotf): Add missing exponent bias
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to the value for 2^126.
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* libm/math/ef_hypot.c (__ieee754_hypotf): Add missing exponent bias
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to the value for 2^126.
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2005-07-26 Hans-Peter Nilsson <hp@bitrange.com>
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@ -67,7 +67,7 @@ case "${target_optspace}:${host}" in
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yes:*)
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newlib_cflags="${newlib_cflags} -Os"
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;;
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:m32r-* | :d10v-* | :d30v-* | :avr-*)
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:m32r-* | :d10v-* | :d30v-* | :avr-* | :m32c-* )
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newlib_cflags="${newlib_cflags} -Os"
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;;
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no:* | :*)
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@ -145,6 +145,11 @@ case "${host_cpu}" in
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iq2000)
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machine_dir=iq2000
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;;
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m32c)
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machine_dir=m32c
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newlib_cflags="${newlib_cflags} -DPREFER_SIZE_OVER_SPEED -DABORT_PROVIDED -DSMALL_MEMORY"
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;;
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m32r*)
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machine_dir=m32r
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;;
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@ -269,6 +269,11 @@
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#endif /* __ARMEL__ */
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#endif /* __MAVERICK__ */
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#ifdef __m32c__
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#define __IEEE_LITTLE_ENDIAN
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#define __SMALL_BITFIELDS
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#endif
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#ifdef __CRIS__
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#define __IEEE_LITTLE_ENDIAN
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#endif
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@ -213,6 +213,15 @@ _BEGIN_STD_C
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#define _JBLEN 18
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#endif
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#ifdef __m32c__
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#if defined(__r8c_cpu__) || defined(__m16c_cpu__)
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#define _JBLEN (22/2)
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#else
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#define _JBLEN (34/2)
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#endif
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#define _JBTYPE unsigned short
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#endif /* __m32c__ */
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#ifdef _JBLEN
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#ifdef _JBTYPE
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typedef _JBTYPE jmp_buf[_JBLEN];
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@ -105,6 +105,22 @@
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#define __BUFSIZ__ 16
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#define _REENT_SMALL
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#endif
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#ifdef __m32c__
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#define __SMALL_BITFIELDS
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#undef INT_MAX
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#undef UINT_MAX
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#define INT_MAX __INT_MAX__
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#define UINT_MAX (__INT_MAX__ * 2U + 1)
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#define MALLOC_ALIGNMENT 8
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#if defined(__r8c_cpu__) || defined(__m16c_cpu__)
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#define _POINTER_INT short
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#else
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#endif
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#define __BUFSIZ__ 16
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#define _REENT_SMALL
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#endif /* __m32c__ */
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/* This block should be kept in sync with GCC's limits.h. The point
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of having these definitions here is to not include limits.h, which
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@ -0,0 +1,12 @@
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## Process this file with automake to generate Makefile.in
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@ -0,0 +1,327 @@
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@ -0,0 +1,366 @@
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dnl aclocal.m4 generated automatically by aclocal 1.4-p6
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dnl Copyright (C) 1994, 1995-8, 1999, 2001 Free Software Foundation, Inc.
|
||||
dnl This file is free software; the Free Software Foundation
|
||||
dnl gives unlimited permission to copy and/or distribute it,
|
||||
dnl with or without modifications, as long as this notice is preserved.
|
||||
|
||||
dnl This program is distributed in the hope that it will be useful,
|
||||
dnl but WITHOUT ANY WARRANTY, to the extent permitted by law; without
|
||||
dnl even the implied warranty of MERCHANTABILITY or FITNESS FOR A
|
||||
dnl PARTICULAR PURPOSE.
|
||||
|
||||
dnl This provides configure definitions used by all the newlib
|
||||
dnl configure.in files.
|
||||
|
||||
dnl Basic newlib configury. This calls basic introductory stuff,
|
||||
dnl including AM_INIT_AUTOMAKE and AC_CANONICAL_HOST. It also runs
|
||||
dnl configure.host. The only argument is the relative path to the top
|
||||
dnl newlib directory.
|
||||
|
||||
AC_DEFUN(NEWLIB_CONFIGURE,
|
||||
[
|
||||
dnl Default to --enable-multilib
|
||||
AC_ARG_ENABLE(multilib,
|
||||
[ --enable-multilib build many library versions (default)],
|
||||
[case "${enableval}" in
|
||||
yes) multilib=yes ;;
|
||||
no) multilib=no ;;
|
||||
*) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;;
|
||||
esac], [multilib=yes])dnl
|
||||
|
||||
dnl Support --enable-target-optspace
|
||||
AC_ARG_ENABLE(target-optspace,
|
||||
[ --enable-target-optspace optimize for space],
|
||||
[case "${enableval}" in
|
||||
yes) target_optspace=yes ;;
|
||||
no) target_optspace=no ;;
|
||||
*) AC_MSG_ERROR(bad value ${enableval} for target-optspace option) ;;
|
||||
esac], [target_optspace=])dnl
|
||||
|
||||
dnl Support --enable-malloc-debugging - currently only supported for Cygwin
|
||||
AC_ARG_ENABLE(malloc-debugging,
|
||||
[ --enable-malloc-debugging indicate malloc debugging requested],
|
||||
[case "${enableval}" in
|
||||
yes) malloc_debugging=yes ;;
|
||||
no) malloc_debugging=no ;;
|
||||
*) AC_MSG_ERROR(bad value ${enableval} for malloc-debugging option) ;;
|
||||
esac], [malloc_debugging=])dnl
|
||||
|
||||
dnl Support --enable-newlib-multithread
|
||||
AC_ARG_ENABLE(newlib-multithread,
|
||||
[ --enable-newlib-multithread enable support for multiple threads],
|
||||
[case "${enableval}" in
|
||||
yes) newlib_multithread=yes ;;
|
||||
no) newlib_multithread=no ;;
|
||||
*) AC_MSG_ERROR(bad value ${enableval} for newlib-multithread option) ;;
|
||||
esac], [newlib_multithread=yes])dnl
|
||||
|
||||
dnl Support --enable-newlib-iconv
|
||||
AC_ARG_ENABLE(newlib-iconv,
|
||||
[ --enable-newlib-iconv enable iconv library support],
|
||||
[if test "${newlib_iconv+set}" != set; then
|
||||
case "${enableval}" in
|
||||
yes) newlib_iconv=yes ;;
|
||||
no) newlib_iconv=no ;;
|
||||
*) AC_MSG_ERROR(bad value ${enableval} for newlib-iconv option) ;;
|
||||
esac
|
||||
fi], [newlib_iconv=${newlib_iconv}])dnl
|
||||
|
||||
dnl Support --enable-newlib-elix-level
|
||||
AC_ARG_ENABLE(newlib-elix-level,
|
||||
[ --enable-newlib-elix-level supply desired elix library level (1-4)],
|
||||
[case "${enableval}" in
|
||||
0) newlib_elix_level=0 ;;
|
||||
1) newlib_elix_level=1 ;;
|
||||
2) newlib_elix_level=2 ;;
|
||||
3) newlib_elix_level=3 ;;
|
||||
4) newlib_elix_level=4 ;;
|
||||
*) AC_MSG_ERROR(bad value ${enableval} for newlib-elix-level option) ;;
|
||||
esac], [newlib_elix_level=0])dnl
|
||||
|
||||
dnl Support --disable-newlib-io-float
|
||||
AC_ARG_ENABLE(newlib-io-float,
|
||||
[ --disable-newlib-io-float disable printf/scanf family float support],
|
||||
[case "${enableval}" in
|
||||
yes) newlib_io_float=yes ;;
|
||||
no) newlib_io_float=no ;;
|
||||
*) AC_MSG_ERROR(bad value ${enableval} for newlib-io-float option) ;;
|
||||
esac], [newlib_io_float=yes])dnl
|
||||
|
||||
dnl Support --disable-newlib-supplied-syscalls
|
||||
AC_ARG_ENABLE(newlib-supplied-syscalls,
|
||||
[ --disable-newlib-supplied-syscalls disable newlib from supplying syscalls],
|
||||
[case "${enableval}" in
|
||||
yes) newlib_may_supply_syscalls=yes ;;
|
||||
no) newlib_may_supply_syscalls=no ;;
|
||||
*) AC_MSG_ERROR(bad value ${enableval} for newlib-supplied-syscalls option) ;;
|
||||
esac], [newlib_may_supply_syscalls=yes])dnl
|
||||
|
||||
AM_CONDITIONAL(MAY_SUPPLY_SYSCALLS, test x[$]{newlib_may_supply_syscalls} = xyes)
|
||||
|
||||
dnl We may get other options which we don't document:
|
||||
dnl --with-target-subdir, --with-multisrctop, --with-multisubdir
|
||||
|
||||
test -z "[$]{with_target_subdir}" && with_target_subdir=.
|
||||
|
||||
if test "[$]{srcdir}" = "."; then
|
||||
if test "[$]{with_target_subdir}" != "."; then
|
||||
newlib_basedir="[$]{srcdir}/[$]{with_multisrctop}../$1"
|
||||
else
|
||||
newlib_basedir="[$]{srcdir}/[$]{with_multisrctop}$1"
|
||||
fi
|
||||
else
|
||||
newlib_basedir="[$]{srcdir}/$1"
|
||||
fi
|
||||
AC_SUBST(newlib_basedir)
|
||||
|
||||
AC_CANONICAL_SYSTEM
|
||||
|
||||
AM_INIT_AUTOMAKE(newlib, 1.13.0)
|
||||
|
||||
# FIXME: We temporarily define our own version of AC_PROG_CC. This is
|
||||
# copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We
|
||||
# are probably using a cross compiler, which will not be able to fully
|
||||
# link an executable. This should really be fixed in autoconf
|
||||
# itself.
|
||||
|
||||
AC_DEFUN(LIB_AC_PROG_CC,
|
||||
[AC_BEFORE([$0], [AC_PROG_CPP])dnl
|
||||
AC_CHECK_PROG(CC, gcc, gcc)
|
||||
if test -z "$CC"; then
|
||||
AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
|
||||
test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
|
||||
fi
|
||||
|
||||
AC_PROG_CC_GNU
|
||||
|
||||
if test $ac_cv_prog_gcc = yes; then
|
||||
GCC=yes
|
||||
dnl Check whether -g works, even if CFLAGS is set, in case the package
|
||||
dnl plays around with CFLAGS (such as to build both debugging and
|
||||
dnl normal versions of a library), tasteless as that idea is.
|
||||
ac_test_CFLAGS="${CFLAGS+set}"
|
||||
ac_save_CFLAGS="$CFLAGS"
|
||||
CFLAGS=
|
||||
AC_PROG_CC_G
|
||||
if test "$ac_test_CFLAGS" = set; then
|
||||
CFLAGS="$ac_save_CFLAGS"
|
||||
elif test $ac_cv_prog_cc_g = yes; then
|
||||
CFLAGS="-g -O2"
|
||||
else
|
||||
CFLAGS="-O2"
|
||||
fi
|
||||
else
|
||||
GCC=
|
||||
test "${CFLAGS+set}" = set || CFLAGS="-g"
|
||||
fi
|
||||
])
|
||||
|
||||
LIB_AC_PROG_CC
|
||||
|
||||
AC_CHECK_TOOL(AS, as)
|
||||
AC_CHECK_TOOL(AR, ar)
|
||||
AC_CHECK_TOOL(RANLIB, ranlib, :)
|
||||
|
||||
AC_PROG_INSTALL
|
||||
|
||||
AM_MAINTAINER_MODE
|
||||
|
||||
# We need AC_EXEEXT to keep automake happy in cygnus mode. However,
|
||||
# at least currently, we never actually build a program, so we never
|
||||
# need to use $(EXEEXT). Moreover, the test for EXEEXT normally
|
||||
# fails, because we are probably configuring with a cross compiler
|
||||
# which can't create executables. So we include AC_EXEEXT to keep
|
||||
# automake happy, but we don't execute it, since we don't care about
|
||||
# the result.
|
||||
if false; then
|
||||
AC_EXEEXT
|
||||
fi
|
||||
|
||||
. [$]{newlib_basedir}/configure.host
|
||||
|
||||
newlib_cflags="[$]{newlib_cflags} -fno-builtin"
|
||||
|
||||
NEWLIB_CFLAGS=${newlib_cflags}
|
||||
AC_SUBST(NEWLIB_CFLAGS)
|
||||
|
||||
LDFLAGS=${ldflags}
|
||||
AC_SUBST(LDFLAGS)
|
||||
|
||||
AM_CONDITIONAL(ELIX_LEVEL_0, test x[$]{newlib_elix_level} = x0)
|
||||
AM_CONDITIONAL(ELIX_LEVEL_1, test x[$]{newlib_elix_level} = x1)
|
||||
AM_CONDITIONAL(ELIX_LEVEL_2, test x[$]{newlib_elix_level} = x2)
|
||||
AM_CONDITIONAL(ELIX_LEVEL_3, test x[$]{newlib_elix_level} = x3)
|
||||
AM_CONDITIONAL(ELIX_LEVEL_4, test x[$]{newlib_elix_level} = x4)
|
||||
|
||||
AM_CONDITIONAL(USE_LIBTOOL, test x[$]{use_libtool} = xyes)
|
||||
|
||||
# Hard-code OBJEXT. Normally it is set by AC_OBJEXT, but we
|
||||
# use oext, which is set in configure.host based on the target platform.
|
||||
OBJEXT=${oext}
|
||||
|
||||
AC_SUBST(OBJEXT)
|
||||
AC_SUBST(oext)
|
||||
AC_SUBST(aext)
|
||||
|
||||
AC_SUBST(libm_machine_dir)
|
||||
AC_SUBST(machine_dir)
|
||||
AC_SUBST(sys_dir)
|
||||
])
|
||||
|
||||
# Do all the work for Automake. This macro actually does too much --
|
||||
# some checks are only needed if your package does certain things.
|
||||
# But this isn't really a big deal.
|
||||
|
||||
# serial 1
|
||||
|
||||
dnl Usage:
|
||||
dnl AM_INIT_AUTOMAKE(package,version, [no-define])
|
||||
|
||||
AC_DEFUN([AM_INIT_AUTOMAKE],
|
||||
[AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
|
||||
AC_REQUIRE([AC_PROG_INSTALL])
|
||||
PACKAGE=[$1]
|
||||
AC_SUBST(PACKAGE)
|
||||
VERSION=[$2]
|
||||
AC_SUBST(VERSION)
|
||||
dnl test to see if srcdir already configured
|
||||
if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then
|
||||
AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
|
||||
fi
|
||||
ifelse([$3],,
|
||||
AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
|
||||
AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package]))
|
||||
AC_REQUIRE([AM_SANITY_CHECK])
|
||||
AC_REQUIRE([AC_ARG_PROGRAM])
|
||||
dnl FIXME This is truly gross.
|
||||
missing_dir=`cd $ac_aux_dir && pwd`
|
||||
AM_MISSING_PROG(ACLOCAL, aclocal-${am__api_version}, $missing_dir)
|
||||
AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir)
|
||||
AM_MISSING_PROG(AUTOMAKE, automake-${am__api_version}, $missing_dir)
|
||||
AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir)
|
||||
AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir)
|
||||
AC_REQUIRE([AC_PROG_MAKE_SET])])
|
||||
|
||||
# Copyright 2002 Free Software Foundation, Inc.
|
||||
|
||||
# This program is free software; you can redistribute it and/or modify
|
||||
# it under the terms of the GNU General Public License as published by
|
||||
# the Free Software Foundation; either version 2, or (at your option)
|
||||
# any later version.
|
||||
|
||||
# This program is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
# GNU General Public License for more details.
|
||||
|
||||
# You should have received a copy of the GNU General Public License
|
||||
# along with this program; if not, write to the Free Software
|
||||
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
|
||||
|
||||
# AM_AUTOMAKE_VERSION(VERSION)
|
||||
# ----------------------------
|
||||
# Automake X.Y traces this macro to ensure aclocal.m4 has been
|
||||
# generated from the m4 files accompanying Automake X.Y.
|
||||
AC_DEFUN([AM_AUTOMAKE_VERSION],[am__api_version="1.4"])
|
||||
|
||||
# AM_SET_CURRENT_AUTOMAKE_VERSION
|
||||
# -------------------------------
|
||||
# Call AM_AUTOMAKE_VERSION so it can be traced.
|
||||
# This function is AC_REQUIREd by AC_INIT_AUTOMAKE.
|
||||
AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
|
||||
[AM_AUTOMAKE_VERSION([1.4-p6])])
|
||||
|
||||
#
|
||||
# Check to make sure that the build environment is sane.
|
||||
#
|
||||
|
||||
AC_DEFUN([AM_SANITY_CHECK],
|
||||
[AC_MSG_CHECKING([whether build environment is sane])
|
||||
# Just in case
|
||||
sleep 1
|
||||
echo timestamp > conftestfile
|
||||
# Do `set' in a subshell so we don't clobber the current shell's
|
||||
# arguments. Must try -L first in case configure is actually a
|
||||
# symlink; some systems play weird games with the mod time of symlinks
|
||||
# (eg FreeBSD returns the mod time of the symlink's containing
|
||||
# directory).
|
||||
if (
|
||||
set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null`
|
||||
if test "[$]*" = "X"; then
|
||||
# -L didn't work.
|
||||
set X `ls -t $srcdir/configure conftestfile`
|
||||
fi
|
||||
if test "[$]*" != "X $srcdir/configure conftestfile" \
|
||||
&& test "[$]*" != "X conftestfile $srcdir/configure"; then
|
||||
|
||||
# If neither matched, then we have a broken ls. This can happen
|
||||
# if, for instance, CONFIG_SHELL is bash and it inherits a
|
||||
# broken ls alias from the environment. This has actually
|
||||
# happened. Such a system could not be considered "sane".
|
||||
AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
|
||||
alias in your environment])
|
||||
fi
|
||||
|
||||
test "[$]2" = conftestfile
|
||||
)
|
||||
then
|
||||
# Ok.
|
||||
:
|
||||
else
|
||||
AC_MSG_ERROR([newly created file is older than distributed files!
|
||||
Check your system clock])
|
||||
fi
|
||||
rm -f conftest*
|
||||
AC_MSG_RESULT(yes)])
|
||||
|
||||
dnl AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY)
|
||||
dnl The program must properly implement --version.
|
||||
AC_DEFUN([AM_MISSING_PROG],
|
||||
[AC_MSG_CHECKING(for working $2)
|
||||
# Run test in a subshell; some versions of sh will print an error if
|
||||
# an executable is not found, even if stderr is redirected.
|
||||
# Redirect stdin to placate older versions of autoconf. Sigh.
|
||||
if ($2 --version) < /dev/null > /dev/null 2>&1; then
|
||||
$1=$2
|
||||
AC_MSG_RESULT(found)
|
||||
else
|
||||
$1="$3/missing $2"
|
||||
AC_MSG_RESULT(missing)
|
||||
fi
|
||||
AC_SUBST($1)])
|
||||
|
||||
# Define a conditional.
|
||||
|
||||
AC_DEFUN([AM_CONDITIONAL],
|
||||
[AC_SUBST($1_TRUE)
|
||||
AC_SUBST($1_FALSE)
|
||||
if $2; then
|
||||
$1_TRUE=
|
||||
$1_FALSE='#'
|
||||
else
|
||||
$1_TRUE='#'
|
||||
$1_FALSE=
|
||||
fi])
|
||||
|
||||
# Add --enable-maintainer-mode option to configure.
|
||||
# From Jim Meyering
|
||||
|
||||
# serial 1
|
||||
|
||||
AC_DEFUN([AM_MAINTAINER_MODE],
|
||||
[AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
|
||||
dnl maintainer-mode is disabled by default
|
||||
AC_ARG_ENABLE(maintainer-mode,
|
||||
[ --enable-maintainer-mode enable make rules and dependencies not useful
|
||||
(and sometimes confusing) to the casual installer],
|
||||
USE_MAINTAINER_MODE=$enableval,
|
||||
USE_MAINTAINER_MODE=no)
|
||||
AC_MSG_RESULT($USE_MAINTAINER_MODE)
|
||||
AM_CONDITIONAL(MAINTAINER_MODE, test $USE_MAINTAINER_MODE = yes)
|
||||
MAINT=$MAINTAINER_MODE_TRUE
|
||||
AC_SUBST(MAINT)dnl
|
||||
]
|
||||
)
|
||||
|
||||
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,12 @@
|
|||
dnl This is the newlib/libc/machine/m32r configure.in file.
|
||||
dnl Process this file with autoconf to produce a configure script.
|
||||
|
||||
AC_PREREQ(2.5)
|
||||
AC_INIT(setjmp.S)
|
||||
|
||||
dnl Can't be done in NEWLIB_CONFIGURE because that confuses automake.
|
||||
AC_CONFIG_AUX_DIR(../../../..)
|
||||
|
||||
NEWLIB_CONFIGURE(../../..)
|
||||
|
||||
AC_OUTPUT(Makefile)
|
||||
|
|
@ -0,0 +1,133 @@
|
|||
/*
|
||||
|
||||
Copyright (c) 2005 Red Hat Incorporated.
|
||||
All rights reserved.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions are met:
|
||||
|
||||
Redistributions of source code must retain the above copyright
|
||||
notice, this list of conditions and the following disclaimer.
|
||||
|
||||
Redistributions in binary form must reproduce the above copyright
|
||||
notice, this list of conditions and the following disclaimer in the
|
||||
documentation and/or other materials provided with the distribution.
|
||||
|
||||
The name of Red Hat Incorporated may not be used to endorse
|
||||
or promote products derived from this software without specific
|
||||
prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
DISCLAIMED. IN NO EVENT SHALL RED HAT INCORPORATED BE LIABLE FOR ANY
|
||||
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
||||
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
||||
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
|
||||
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||||
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
|
||||
*/
|
||||
|
||||
#if defined(__r8c_cpu__) || defined(__m16c_cpu__)
|
||||
#define A16 1
|
||||
#endif
|
||||
|
||||
/* We implement setjmp/longjmp much like the way gcc implements
|
||||
exceptions - we create new stack frames, then switch to them and
|
||||
return. Thus, the two setjmp's below each push all the relevent
|
||||
registers, then copy the whole frame into the buffer (first $sp is
|
||||
moved, then smovf copies the frame itself), and the two longjmps
|
||||
restore $sp, copy the frame back into place, and issue the same
|
||||
return as the setjmp would have used.
|
||||
|
||||
Since the sizes of registers differs between the 16 and 24 bit
|
||||
models, we provide separate implementations for each rather than
|
||||
trying to parameterize them.
|
||||
|
||||
Jump buffer sizes: 21 bytes for 16 bit, 34 bytes for 24 bit.
|
||||
*/
|
||||
|
||||
.text
|
||||
|
||||
#ifdef A16 /* 16 bit versions */
|
||||
|
||||
.global _setjmp
|
||||
_setjmp:
|
||||
enter #0
|
||||
pushm r1,r2,r3,a0,a1,sb,fb
|
||||
|
||||
; At this point, the stack looks like this:
|
||||
; ... [pc:3] [oldfb:2] <fb> [r1:2] [r2:2] [r3:2] [a0:2] [a1:2] [sb:2] [fb:2] <sp> */
|
||||
|
||||
mov.w r1,a1 ; a1 is the destination of smovf
|
||||
mov.b #0,r1h
|
||||
stc sp,a0 ; r1h:a0 is the source of smovf
|
||||
mov.w a0,[a1]
|
||||
add.w #2,a1
|
||||
mov.w #19,r3 ; plus two for sp later
|
||||
smovf.b
|
||||
|
||||
; Return 0 to caller.
|
||||
mov.w #0,r0
|
||||
popm r1,r2,r3,a0,a1,sb,fb
|
||||
exitd
|
||||
|
||||
.global _longjmp
|
||||
_longjmp:
|
||||
enter #0
|
||||
mov.w r1,a0 ; pointer to jump buf
|
||||
mov.w r2,r0 ; setjmp's "new" return value
|
||||
|
||||
mov.b #0,r1h ; r1h: a0 is the source, now jmpbuf
|
||||
mov.w [a0],a1 ; dest is new stack
|
||||
ldc a1,sp
|
||||
add.w #2,a0
|
||||
mov.w #19,r3
|
||||
smovf.b
|
||||
|
||||
;; now return to our caller with this newly restored frame
|
||||
popm r1,r2,r3,a0,a1,sb,fb
|
||||
exitd
|
||||
|
||||
#else /* 24 bit versions */
|
||||
|
||||
.global _setjmp
|
||||
_setjmp:
|
||||
enter #0
|
||||
pushm r1,r2,r3,a0,a1,sb,fb
|
||||
|
||||
; At this point, the stack looks like this:
|
||||
; ... [jbuf:4] [pc:4] [oldfb:4] <fb> [r1:2] [r2:2] [r3:2] [a0:4] [a1:4] [sb:4] [fb:4] <sp> */
|
||||
|
||||
mov.l 8[fb],a1 ; a1 is the destination of smovf
|
||||
stc sp,a0 ; r1h:a0 is the source of smovf
|
||||
mov.l a0,[a1]
|
||||
add.l #4,a1
|
||||
mov.w #30,r3 ; plus two for sp later
|
||||
smovf.b
|
||||
|
||||
; Return 0 to caller.
|
||||
mov.w #0,r0
|
||||
popm r1,r2,r3,a0,a1,sb,fb
|
||||
exitd
|
||||
|
||||
.global _longjmp
|
||||
_longjmp:
|
||||
enter #0
|
||||
; ... [rv:2] [jbuf:4] [pc:4] [oldfb:4] <fb>
|
||||
mov.l 8[fb],a0 ; pointer to jump buf
|
||||
mov.w 12[fb],r0 ; setjmp's "new" return value
|
||||
|
||||
mov.l [a0],a1 ; dest is new stack
|
||||
ldc a1,sp
|
||||
add.l #4,a0
|
||||
mov.w #30,r3
|
||||
smovf.b
|
||||
|
||||
;; now return to our caller with this newly restored frame
|
||||
popm r1,r2,r3,a0,a1,sb,fb
|
||||
exitd
|
||||
#endif
|
||||
|
||||
Loading…
Reference in New Issue