Files
rtems/bootstrap
Chris Johns 2afb22b7e1 Remove make preinstall
A speciality of the RTEMS build system was the make preinstall step.  It
copied header files from arbitrary locations into the build tree.  The
header files were included via the -Bsome/build/tree/path GCC command
line option.

This has at least seven problems:

* The make preinstall step itself needs time and disk space.

* Errors in header files show up in the build tree copy.  This makes it
  hard for editors to open the right file to fix the error.

* There is no clear relationship between source and build tree header
  files.  This makes an audit of the build process difficult.

* The visibility of all header files in the build tree makes it
  difficult to enforce API barriers.  For example it is discouraged to
  use BSP-specifics in the cpukit.

* An introduction of a new build system is difficult.

* Include paths specified by the -B option are system headers.  This
  may suppress warnings.

* The parallel build had sporadic failures on some hosts.

This patch removes the make preinstall step.   All installed header
files are moved to dedicated include directories in the source tree.
Let @RTEMS_CPU@ be the target architecture, e.g. arm, powerpc, sparc,
etc.  Let @RTEMS_BSP_FAMILIY@ be a BSP family base directory, e.g.
erc32, imx, qoriq, etc.

The new cpukit include directories are:

* cpukit/include

* cpukit/score/cpu/@RTEMS_CPU@/include

* cpukit/libnetworking

The new BSP include directories are:

* bsps/include

* bsps/@RTEMS_CPU@/include

* bsps/@RTEMS_CPU@/@RTEMS_BSP_FAMILIY@/include

There are build tree include directories for generated files.

The include directory order favours the most general header file, e.g.
it is not possible to override general header files via the include path
order.

The "bootstrap -p" option was removed.  The new "bootstrap -H" option
should be used to regenerate the "headers.am" files.

Update #3254.
2018-01-25 08:45:26 +01:00

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#!/bin/sh
#
# helps bootstrapping, when checked out from CVS
# requires GNU autoconf and GNU automake
#
# this is not meant to be exported outside the source tree
#
# NOTE: Inspired by libtool's autogen script
#
# to be run from the toplevel directory of RTEMS'
# source tree
progname=`basename $0`
top_srcdir=`dirname $0`
LC_ALL=C
export LC_ALL
verbose=""
quiet="false"
mode="autoreconf"
force=0
usage()
{
echo
echo "usage: ${progname} [-c|-p|-h] [-q][-v]"
echo
echo "options:"
echo " -c .. clean, remove all aclocal/autoconf/automake generated files"
echo " -h .. display this message and exit"
echo " -H .. regenerate headers.am files"
echo " -q .. quiet, don't display directories"
echo " -v .. verbose, pass -v to autotools"
echo
exit 1
}
generate_bspdir_acinclude()
{
cat << EOF > acinclude.m4~
# RTEMS_CHECK_BSPDIR(RTEMS_BSP_FAMILY)
AC_DEFUN([RTEMS_CHECK_BSPDIR],
[
case "\$1" in
EOF
for i in `echo */make | tr " " "\n" | LANG=C LC_COLLATE=C sort`; do
d=`dirname $i`
cat << EOF >> acinclude.m4~
$d )
AC_CONFIG_SUBDIRS([$d]);;
EOF
done
cat << EOF >> acinclude.m4~
*)
AC_MSG_ERROR([Invalid BSP]);;
esac
])
EOF
if cmp -s acinclude.m4 acinclude.m4~ 2>/dev/null; then
echo "acinclude.m4 is unchanged"
else
cp acinclude.m4~ acinclude.m4
fi
rm -f acinclude.m4~
}
if test ! -f $top_srcdir/aclocal/version.m4; then
echo "${progname}:"
echo " Installation problem: Can't find file aclocal/version.m4"
exit 1
fi
while test $# -gt 0; do
case $1 in
-h|--he|--hel|--help)
usage ;;
-q|--qu|--qui|--quie|--quiet)
quiet="true"
shift;;
-v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
verbose="-v"
shift;;
-c|--cl|--cle|--clea|--clean)
mode="clean"
shift;;
-f|--fo|--for|--forc|--force)
force=`expr $force + 1`
shift;;
-H|--headers)
mode="headers"
shift;;
-r|--re|--rec|--reco|--recon|--reconf)
mode="autoreconf"
shift;;
-g|--ge|--gen|--gene|--gener|--genera|--generat|--generate)
mode="generate"
shift;;
-*) echo "unknown option $1"
usage ;;
*) echo "invalid parameter $1"
usage ;;
esac
done
case $mode in
headers)
if test "." != "$top_srcdir"; then
echo "To generate the headers.am you must call the script via \"./$progname -H\""
exit 1
fi
base="$PWD"
tmp="$base/headers.am.new"
for i in cpukit/include cpukit/score/cpu/*/include bsps/include bsps/*/include bsps/*/*/include ; do
dir=""
am_dir=""
echo '## This file was generated by "./boostrap -H".' > "$tmp"
case $i in
cpukit/include)
hdr="../"
inc="include/"
;;
cpukit/score/cpu/*/include)
hdr="../"
inc=`echo $i | cut -d'/' -f5-`
inc="$inc/"
;;
bsps/*/*/include)
hdr="../"
inc="../../../../../../$i/"
;;
bsps/*/include)
hdr="../"
inc="../../../../../$i/"
;;
bsps/include)
hdr="../"
inc="../../$i/"
;;
*)
hdr=""
inc=""
;;
esac
cd $i
for b in `find -type d | sort` ; do
for j in `find $b -mindepth 1 -maxdepth 1 -name '*.h' -or -name '*.inc' | sed 's%^\.%%' | sed 's%^/%%' | sort` ; do
d=`dirname $j`
if test x$d != x$dir ; then
dir=$d
if test x$d != x. ; then
am_dir=`echo $dir | sed 's%[/-]%_%g'`
am_dir="_$am_dir"
echo -e "\ninclude${am_dir}dir = \$(includedir)/$dir" >> "$tmp"
else
am_dir=""
echo "" >> "$tmp"
fi
echo "include${am_dir}_HEADERS =" >> "$tmp"
fi
echo "include${am_dir}_HEADERS += $inc$j" >> "$tmp"
if test $j = bsp.h ; then
echo -e "include_HEADERS += include/bspopts.h" >> "$tmp"
fi
done
done
cd "$base"
diff -q "$tmp" "$i/${hdr}headers.am" || mv "$tmp" "$i/${hdr}headers.am"
done
rm -f "$tmp"
;;
generate)
AUTOCONF=${AUTOCONF-autoconf}
if test -z "$AUTOCONF"; then
echo "You must have autoconf installed to run $program"
exit 1
fi
AUTOHEADER=${AUTOHEADER-autoheader}
if test -z "$AUTOHEADER"; then
echo "You must have autoconf installed to run $program"
exit 1
fi
AUTOMAKE=${AUTOMAKE-automake}
if test -z "$AUTOMAKE"; then
echo "You must have automake installed to run $program"
exit 1
fi
ACLOCAL=${ACLOCAL-aclocal}
if test -z "$ACLOCAL"; then
echo "You must have automake installed to run $program"
exit 1
fi
case $top_srcdir in
/* ) aclocal_dir=$top_srcdir
;;
*) aclocal_dir=`pwd`/$top_srcdir
;;
esac
confs=`find . \( -name 'configure.in' -o -name 'configure.ac' \) -print`
for i in $confs; do
dir=`dirname $i`
configure=`basename $i`
( test "$quiet" = "true" || echo "$dir"
cd $dir
test -n "`grep RTEMS_CHECK_BSPDIR ${configure}`" && \
generate_bspdir_acinclude
pat="s,\$(RTEMS_TOPdir),${aclocal_dir},g"
aclocal_args=`grep '^[ ]*ACLOCAL_AMFLAGS' Makefile.am | \
sed -e 's%.*ACLOCAL_AMFLAGS.*\=[ ]*%%g' -e $pat `
test "$verbose" = "-v" && echo "${ACLOCAL} $aclocal_args"
${ACLOCAL} $aclocal_args
test -n "`grep CONFIG_HEADER ${configure}`" && ${AUTOHEADER} \
&& test "$verbose" = "-v" && echo "${AUTOHEADER}"
test -n "`grep RTEMS_BSP_CONFIGURE ${configure}`" && ${AUTOHEADER} \
&& test "$verbose" = "-v" && echo "${AUTOHEADER}"
test -f Makefile.am && ${AUTOMAKE} -a -c $verbose
${AUTOCONF}
test -f Makefile.am && test -n "`grep 'stamp-h\.in' Makefile.in`" \
&& echo timestamp > stamp-h.in
)
done
;;
autoreconf)
AUTORECONF=${AUTORECONF-autoreconf}
if test -z "$AUTORECONF"; then
echo "You must have autoreconf installed to run $program"
exit 1
fi
confs=`find . -name 'configure.ac' -print`
for i in $confs; do
dir=`dirname $i`
configure=`basename $i`
( test "$quiet" = "true" || echo "$dir"
cd $dir
test -n "`grep RTEMS_CHECK_BSPDIR ${configure}`" && \
generate_bspdir_acinclude
${AUTORECONF} -i --no-recursive $verbose
test -f Makefile.am && test -n "`grep 'stamp-h\.in' Makefile.in`" \
&& echo timestamp > stamp-h.in
)
done
;;
clean)
test "$quiet" = "true" || echo "removing automake generated Makefile.in files"
files=`find . -name 'Makefile.am' -print | sed -e 's%\.am%\.in%g'`
for i in $files; do
if test -f $i; then
rm -f $i
test "$verbose" = "-v" && echo "$i"
fi
done
test "$quiet" = "true" || echo "removing configure files"
files=`find . -name 'configure' -print`
for i in $files; do
if test -f $i; then
rm -f $i
test "$verbose" = "-v" && echo "$i"
fi
done
if test $force -gt 0; then
needles=""
if test $force -gt 1; then
# Manually maintained
needles="$needles config.sub"
needles="$needles config.guess"
fi
if test $force -gt 0; then
# Inherited from automake
needles="$needles compile"
needles="$needles depcomp"
needles="$needles install-sh"
needles="$needles missing"
needles="$needles mdate-sh"
fi
for j in $needles; do
files=`find . -name "$j" -print`
for i in $files; do
if test -f $i; then
rm -f $i
test "$verbose" = "-v" && echo "$i"
fi
done
done
fi
test "$quiet" = "true" || echo "removing aclocal.m4 files"
files=`find . -name 'aclocal.m4' -print`
test "$verbose" = "-v" && test -n "$files" && echo "$files"
for i in $files; do
if test -f $i; then
rm -f $i
test "$verbose" = "-v" && echo "$i"
fi
done
find . -name '*~' -print | xargs rm -f
find . -name 'bspopts.h.in' -print | xargs rm -f
find . -name '*.orig' -print | xargs rm -f
find . -name '*.rej' -print | xargs rm -f
find . -name 'config.status' -print | xargs rm -f
find . -name 'config.log' -print | xargs rm -f
find . -name 'config.cache' -print | xargs rm -f
find . -name 'Makefile' -print | xargs rm -f
find . -name '.deps' -print | xargs rm -rf
find . -name '.libs' -print | xargs rm -rf
find . -name 'stamp-h.in' | xargs rm -rf
find . -name 'autom4te*.cache' | xargs rm -rf
;;
esac
exit 0