diff options
Diffstat (limited to 'm4/rtems-setup-recurse.m4')
| -rw-r--r-- | m4/rtems-setup-recurse.m4 | 224 |
1 files changed, 224 insertions, 0 deletions
diff --git a/m4/rtems-setup-recurse.m4 b/m4/rtems-setup-recurse.m4 new file mode 100644 index 0000000..e3f39ec --- /dev/null +++ b/m4/rtems-setup-recurse.m4 @@ -0,0 +1,224 @@ +# 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_ +]) |