# This macro assembles a list of RTEMS CPUs and if the list
# contains more than one member then it creates a build subdirectory
# for each CPU architecture, 'chdirs' into the subdirectory and recursively
# configures for the CPU.
#
# Several options affect the behavior of this macro:
#
# --with-rtems-top
# --host
# --enable-rtemsbsp
#
# 1) if --with-rtems-top is NOT given (NOT RTEMS) OR if
# --host=<xyz>-rtems was given (RTEMS CPU defined by user)
# THEN the macro does nothing.
#
# 2) ELSE (--with-rtems-top given but --host is NOT *rtems*
# i) assemble a list of all '<cpu>-rtems*' subdirectories
# under ${with_rtems_top}
#
# ii) if --enable-rtemsbsp was given then remove CPU
# architectures not being required by any of the listed
# BSPS.
#
# iii) for each remaining CPU architecture create a subdirectory,
# chdir there and recursively call 'configure' again with
# the original arguments but --host=<cpu>-rtems appended.
#
# Note: this macro should not be used directly. It is expanded from
# TILLAC_RTEMS_SETUP
#
# TILLAC_RTEMS_CONFIG_CPUS_RECURSIVE
AC_DEFUN([TILLAC_RTEMS_CONFIG_CPUS_RECURSIVE],
[if test ! "${with_rtems_top+set}" = "set" || TILLAC_RTEMS_HOSTOS_IS_RTEMS ; then : ; else
# with_rtems_top is set but host_os is not *rtems*, i.e.,
# we have to figure out a list of CPUs/arches that are installed.
AC_MSG_CHECKING([for all installed CPUs/architectures])
_tillac_rtems_cpulist="`(cd $with_rtems_top; ls -d *-rtems* | tr '\n\r' ' ')`"
AC_MSG_RESULT([Found: $_tillac_rtems_cpulist])
# if 'enable-rtemsbsp' was given then filter away
# architectures that match none of the BSPs
if test "${enable_rtemsbsp+set}" = "set" ; then
# convert space separated list into ORed (|) pattern
_tillac_rtems_bspfilt=`echo "$enable_rtemsbsp" | sed -e 's/[[ \t]]\+/|/g'`
AC_MSG_NOTICE([Filtering CPU/architecture list against bsps: $_tillac_rtems_bspfilt])
_tillac_rtems_cpuall="$_tillac_rtems_cpulist"
_tillac_rtems_cpulist=""
AC_MSG_CHECKING([CPU/architectures matching requested BSPs])
for _tillac_rtems_cpucand in $_tillac_rtems_cpuall ; do
# look for directories which have a 'Makefile.inc'
for _tillac_rtems_bspcand in `(cd $with_rtems_top/$_tillac_rtems_cpucand ; ls */Makefile.inc | tr '\n\r' ' ')` ; do
AC_MSG_NOTICE([testing $_tillac_rtems_bspcand])
# reduce to bsp name
_tillac_rtems_bspcand=`dirname $_tillac_rtems_bspcand`
if eval "case `echo $_tillac_rtems_bspcand` in $_tillac_rtems_bspfilt) : ;; *) false ;; esac" ; then
# only add candidate to list of cpus if not already there
if test -z "$_tillac_rtems_cpulist" ; then
_tillac_rtems_cpulist="$_tillac_rtems_cpucand"
else
_tillac_rtems_cpufilt=`echo "$_tillac_rtems_cpulist" | sed -e 's/[[ \t]]\+/|/g'`
if eval "case `echo $_tillac_rtems_cpucand` in $_tillac_rtems_cpufilt) false ;; *) : ;; esac" ; then
_tillac_rtems_cpulist="$_tillac_rtems_cpulist $_tillac_rtems_cpucand"
fi
fi
fi
done
done
AC_MSG_RESULT([found: $_tillac_rtems_cpulist])
fi
if test "$_tillac_rtems_cpulist"xx = "xx" ; then
AC_MSG_ERROR([No RTEMS architectures found])
fi
# Create directory and configure
for _tillac_rtems_cpucand in $_tillac_rtems_cpulist ; do
if test -d $_tillac_rtems_cpucand || mkdir $_tillac_rtems_cpucand ; then : ; else
AC_MSG_ERROR([Unable to create subdirectory $_tillac_rtems_cpucand])
fi
TILLAC_RTEMS_TRIM_CONFIG_DIR(_tillac_rtems_config_dir)
# SUB-CONFIGURE
AC_MSG_NOTICE([Running $_tillac_rtems_config_dir/[$]0 "$ac_configure_args --host=$_tillac_rtems_cpucand" in "'$_tillac_rtems_cpucand'" subdir])
eval \( cd $_tillac_rtems_cpucand \; $SHELL $_tillac_rtems_config_dir/"[$]0" $ac_configure_args --host=$_tillac_rtems_cpucand \)
done
AC_MSG_NOTICE([Creating cpu/arch level makefile])
AC_SUBST(the_subdirs,[$_tillac_rtems_cpulist])
AC_SUBST(the_distsub,['$(firstword '"$_tillac_rtems_cpulist"')'])
_tillac_rtems_recursing=yes
false
fi]dnl
)
# This macro
#
# - removes --enable-rtemsbsp options from the current commandline
# - for each BSP listed in '${enable_rtemsbsp}'
# i) creates a BSP subdirectory in the build tree
# ii) chdirs into the subdirectory
# iii) figures out a few BSP-specific build settings
# (cflags, gcc specs, ...)
# iv) configures for the BSP passing the properties determined
# under iii) along to 'configure' on the commandline.
# Also, --enable-rtemsbsp=<this_bsp> is appended to the
# configure commandline.
#
# Note: this macro should not be used directly. It is expanded from
# TILLAC_RTEMS_SETUP
#
# TILLAC_RTEMS_CONFIG_BSPS_RECURSIVE
AC_DEFUN([TILLAC_RTEMS_CONFIG_BSPS_RECURSIVE],
[if test ! "${RTEMS_TILL_MAKEVARS_SET}" = "YES"; then
# strip all --enable-rtemsbsp options from original
# commandline
AC_MSG_NOTICE([Stripping --enable-rtemsbsp option(s) from commandline])
_tillac_rtems_config_args=""
eval for _tillac_rtems_arg in $ac_configure_args \; do case \$_tillac_rtems_arg in --enable-rtemsbsp\* \) \;\; \*\) _tillac_rtems_config_args=\"\$_tillac_rtems_config_args \'\$_tillac_rtems_arg\'\" \;\; esac done
AC_MSG_NOTICE([Commandline now: $_tillac_rtems_config_args])
AC_MSG_NOTICE([Creating BSP subdirectories and sub-configuring])
TILLAC_RTEMS_SAVE_MAKEVARS
for _tillac_rtems_bsp in $enable_rtemsbsp ; do
if test ! -d $_tillac_rtems_bsp ; then
AC_MSG_CHECKING([Creating $_tillac_rtems_bsp])
if mkdir $_tillac_rtems_bsp ; then
AC_MSG_RESULT([OK])
else
AC_MSG_ERROR([Failed])
fi
fi
TILLAC_RTEMS_TRIM_CONFIG_DIR(_tillac_rtems_config_dir)
TILLAC_RTEMS_RESET_MAKEVARS
TILLAC_RTEMS_MAKEVARS(${host_cpu}-${host_os},$_tillac_rtems_bsp)
tillac_rtems_cppflags="$tillac_rtems_cppflags -I$with_rtems_top/${host_cpu}-${host_os}/$_tillac_rtems_bsp/lib/include"
TILLAC_RTEMS_EXPORT_MAKEVARS(${host_cpu}-${host_os},$_tillac_rtems_bsp)
AC_MSG_NOTICE([Running $_tillac_rtems_config_dir/[$]0 $_tillac_rtems_config_args --enable-rtemsbsp=$_tillac_rtems_bsp in $_tillac_rtems_bsp subdir])
eval \( cd $_tillac_rtems_bsp \; $SHELL $_tillac_rtems_config_dir/"[$]0" $_tillac_rtems_config_args --enable-rtemsbsp=$_tillac_rtems_bsp \)
done
TILLAC_RTEMS_RESET_MAKEVARS
AC_MSG_NOTICE([Creating toplevel makefile])
AC_SUBST(the_subdirs,[$enable_rtemsbsp])
AC_SUBST(the_distsub,['$(firstword '"$enable_rtemsbsp"')'])
fi]dnl
)
# Grand Master Macro for RTEMS configuration.
#
# This sets up most things for a RTEMS configuration
# for multiple CPU-arches and BSPs.
#
# A package may add the optional (literal) argument
# 'domultilib'. In this case, multilib support is enabled
# and the user may configure with '--enable-multilib'.
# Note that the package must properly support multilibs!
#
# If the host system is not RTEMS (no with-rtems-top given)
# then this macro does *nothing*.
#
# TILLAC_RTEMS_SETUP([domultilib])
AC_DEFUN([TILLAC_RTEMS_SETUP],
[AC_REQUIRE([TILLAC_RTEMS_OPTIONS])dnl
AM_CONDITIONAL(OS_IS_RTEMS,[TILLAC_RTEMS_OS_IS_RTEMS])
if TILLAC_RTEMS_CONFIG_CPUS_RECURSIVE ; then
m4_if($1,domultilib,
[TILLAC_RTEMS_MULTILIB([Makefile],[.])],
[AC_REQUIRE([TILLAC_RTEMS_OPTIONS])dnl
if test "${enable_multilib}" = "yes" ; then
AC_MSG_ERROR(["multilibs not supported, sorry"])
fi]dnl
)
if TILLAC_RTEMS_OS_IS_RTEMS ; then
TILLAC_RTEMS_CHECK_TOP
AC_ARG_VAR([RTEMS_TILL_MAKEVARS_SET],[Internal use; do NOT set in environment nor on commandline])
AC_ARG_VAR([DOWNEXT],[extension of downloadable binary (if applicable)])
AC_ARG_VAR([APPEXEEXT], [extension of linked binary])
AC_ARG_VAR([RTEMS_BSP_FAMILY],[Internal use; do NOT set in environment nor on commandline])
AC_ARG_VAR([RTEMS_BSP_INSTTOP],[Internal use; do NOT set in environment nor on commandline])
if test "$1" = "domultilib" && test "$enable_multilib" = "yes" ; then
if test "${enable_rtemsbsp+set}" = "set" ; then
AC_MSG_ERROR([Cannot --enable-rtemsbsp AND --enable-multilib; build either multilibs or for particular BSP(s)])
fi
TILLAC_RTEMS_EXPORT_MAKEVARS(${host_cpu}-${host_os},)
else
TILLAC_RTEMS_CHECK_BSPS
fi
if test ! "${RTEMS_TILL_MAKEVARS_SET}" = "YES"; then
TILLAC_RTEMS_CONFIG_BSPS_RECURSIVE(makefile)
_tillac_rtems_recursing=yes
else
TILLAC_RTEMS_FIXUP_PREFIXES
dnl set those in the configure script so that 'configure' uses these settings when trying to compile stuff
dnl AC_SUBST(rtems_gccspecs, [$tillac_rtems_gccspecs])
dnl AC_SUBST(rtems_cpu_cflags, [$tillac_rtems_cpu_cflags])
dnl AC_SUBST(rtems_cpu_asflags,["$tillac_rtems_cpu_asflags -DASM"])
dnl AC_SUBST(rtems_cppflags, [$tillac_rtems_cppflags])
AC_SUBST(rtems_bsp, [$enable_rtemsbsp])
AC_MSG_NOTICE([Setting DOWNEXT to .ralf])
DOWNEXT=.ralf
AC_MSG_NOTICE([Setting APPEXEEXT to .exe])
APPEXEEXT=.exe
TILLAC_RTEMS_VERSTEST
fi
fi
fi
if test "${_tillac_rtems_recursing}" = "yes" ; then
AC_CONFIG_FILES([makefile:makefile.top.in])
AC_OUTPUT
exit 0
false
fi]dnl
)
dnl m4_syscmd is executed when aclocal is run
m4_syscmd([cat - > makefile.top.am <<'EOF_'
AUTOMAKE_OPTIONS=foreign
SUBDIRS=@the_subdirs@
# When making a distribution we only want to
# recurse into (any) one single BSP subdir.
DIST_SUBDIRS=@the_distsub@
# The dist-hook then removes this extra
# directory level again.
dist-hook:
if test "$(PACKAGE_VERSION)" = "untagged" ; then echo "Need tagged version to cut distribution"; exit 1; fi
cp -frl $(distdir)/$(DIST_SUBDIRS)/* $(distdir)
rm -fr $(distdir)/$(DIST_SUBDIRS)
EOF_
])
