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[patch/rfc] Revised gdb_mbuild.sh
- From: Andrew Cagney <ac131313 at redhat dot com>
- To: gdb-patches at sources dot redhat dot com
- Date: Thu, 05 Dec 2002 18:32:19 -0500
- Subject: [patch/rfc] Revised gdb_mbuild.sh
Hello,
Attatched is a revised version of the script gdb_mbuild.sh. The patch
also updates the MAINTAINERS file to simply mention the script.
I'll look to commit in a few days. I think it works with the new
top-level make files.
Andrew
2002-12-05 Andrew Cagney <ac131313@redhat.com>
* MAINTAINERS: Mention gdb_mbuild.sh.
* gdb_mbuild.sh: Rewrite.
Index: MAINTAINERS
===================================================================
RCS file: /cvs/src/src/gdb/MAINTAINERS,v
retrieving revision 1.213
diff -u -r1.213 MAINTAINERS
--- MAINTAINERS 2 Dec 2002 20:44:48 -0000 1.213
+++ MAINTAINERS 5 Dec 2002 23:29:09 -0000
@@ -172,40 +172,8 @@
the obvious fix rule) to ``maintenance only'' targets. The change
shall be sanity checked by compiling with one of the listed targets.
-The Bourne shell script:
-
-cat MAINTAINERS | tr -s '[\t]' '[ ]' | sed -n '
-/^[ ]*[-a-z0-9\.]*[ ]*[(]*--target=.*/ !d
-s/^.*--target=//
-s/).*$//
-h
-:loop
- g
- /^[^ ]*,/ !b end
- s/,[^ ]*//
- p
- g
- s/^[^,]*,//
- h
-b loop
-:end
-p
-'
-
-can be used to generate a list of buildable targets. The list
-containing values for the configure options --target=,
---enable-gdb-build-warnings= and optionally
---enable-sim-build-warnings vis:
-
- arc-elf ,-Werror
- ...
- m68hc11-elf ,-Werror ,
- ...
- hppa1.1-hp-proelf broken
- ...
-
-While the ``broken'' targets are included in the listing, the are not
-expected to build.
+The Bourne shell script gdb_mbuild.sh can be used to rebuild all the
+above targets.
Host/Native:
#!/bin/sh
# Multi-build script for testing compilation of all maintained configs of GDB.
# Copyright (C) 2002 Free Software Foundation, Inc.
# Contributed by Richard Earnshaw (rearnsha@arm.com)
# 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 of the License, 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 02111-1307 USA
usage() {
cat <<EOF
Usage: gdb_mbuild.sh [ <options> ... ] <srcdir> <builddir>
Options:
-j <makejobs> Run <makejobs> in parallel. Passed to make.
On a single cpu machine, 2 is recommended.
-b <maxbuilds> Run <maxbuild> builds in parallel.
On a single cpu machine, 1 is recommended.
-v Be more (and more, and more) verbose.
-k Keep going. Do not stop after the first build fails.
-e <regexp> Regular expression for selecting the targets to build.
-f Force rebuild. Even rebuild previously built directories.
Environment variables examined (with default if not defined):
MAKE (make)"
Note: Everything in <builddir>/gdb-allcross will be blown away.
EOF
exit 1;
}
### COMMAND LINE OPTIONS
makejobs=
maxbuilds=1
keepgoing=
force=false
targexp=""
verbose=0
while test $# -gt 0
do
case "$1" in
-j )
# Number of parallel make jobs.
shift
test $# -ge 1 || usage
makejobs="-j $1"
;;
-b | -c )
# Number of builds to fire off in parallel.
shift
test $# -ge 1 || usage
maxbuilds=$1
;;
-k )
# Should we soldier on after the first build fails?
keepgoing=-k
;;
-e )
# A regular expression for selecting targets
shift
test $# -ge 1 || usage
targexp="${targexp} -e ${1}"
;;
-f )
# Force a rebuild
force=true ; shift ;;
-v )
# Be more, and more, and more, verbose
verbose=`expr ${verbose} + 1`
;;
-* ) usage ;;
*) break ;;
esac
shift
done
### COMMAND LINE PARAMETERS
if test $# -ne 2
then
usage
fi
# Convert these to absolute directory paths.
# Where the sources live
srcdir=`cd $1 && /bin/pwd` || exit 1
# Where the builds occur
builddir=`cd $2 && /bin/pwd` || exit 1
### ENVIRONMENT PARAMETERS
# Version of make to use
make=${MAKE:-make}
MAKE=${make}
export MAKE
# Where to look for the list of targets to test
maintainers=${srcdir}/gdb/MAINTAINERS
if [ ! -r ${maintainers} ]
then
echo Maintainers file ${maintainers} not found
exit 1
fi
# Get the list of targets and the build options
alltarg=`cat ${maintainers} | tr -s '[\t]' '[ ]' | sed -n '
/^[ ]*[-a-z0-9\.]*[ ]*[(]*--target=.*/ !d
s/^.*--target=//
s/).*$//
h
:loop
g
/^[^ ]*,/ !b end
s/,[^ ]*//
p
g
s/^[^,]*,//
h
b loop
:end
p
' | if test "${targexp}" = ""
then
grep -v -e broken -e OBSOLETE
else
grep ${targexp}
fi`
# Run several jobs in parallel.
set --
# Usage: fail <message> <test-that-should-succeed>. Should the build
# fail? If the test is true, and we don't want to keep going, print
# the message and shoot everything in sight and abort the build.
fail ()
{
msg="$1" ; shift
if test "$@"
then
echo "${target}: ${msg}"
if test "${keepgoing}" != ""
then
exit 1
else
kill $$
exit 1
fi
fi
}
# Usage: log <level> <logfile>. Write standard input to <logfile> and
# stdout (if verbose >= level).
log ()
{
if test ${verbose} -ge $1
then
tee $2
else
cat > $2
fi
}
# Warn the user of what is comming, print the list of targets
echo "$alltarg"
echo ""
# For each target, configure and build it.
echo "$alltarg" | while true
do
# Keep forking builds until we've exceed our build capacity
while test $# -lt ${maxbuilds} && read target gdbopts simopts
do
(
trap "exit 1" 1 2 15
dir=${builddir}/${target}
# Should a scratch rebuild be forced?
if ${force}
then
echo ... forcing ${target}
rm -rf ${dir}
fi
# Don't bother re-building a built target (indicated by
# ${dir} being a file).
if test -f ${dir}
then
echo "${target}"
exit 0
fi
echo ${target} ...
# Did the previous configure attempt fail? If it did
# restart from scratch.
if test -d ${dir} -a ! -r ${dir}/Makefile
then
echo ... removing partially configured ${target}
rm -rf ${dir}
if test -d ${dir}
then
echo "${target}: unable to remove directory ${dir}"
exit 1
fi
fi
# From now on, we're in this target's build directory
mkdir -p ${dir}
cd ${dir} || exit 1
# Configure, if not already.
if test ! -r Makefile
then
# The config options
__target="--target=${target}"
__enable_gdb_warnings=`test -z "${gdbopts}" \
|| echo "--enable-gdb-warnings=${gdbopts}"`
__enable_sim_warnings=`test -z "${simopts}" \
|| echo "--enable-sim-warnings=${simopts}"`
echo ... configure ${__target} \
${__enable_gdb_warnings} \
${__enable_sim_warnings}
trap "echo Removing partially configured ${dir} directory ...; rm -rf ${dir}; exit 1" 1 2 15
${srcdir}/configure \
${__target} \
${__enable_gdb_warnings} \
${__enable_sim_warnings} \
2>&1 | log 2 Config.log
trap "exit 1" 1 2 15
fi
fail "configure failed" ! -r Makefile
# Build, if not built.
if test ! -x gdb/gdb -a ! -x gdb/gdb.exe
then
echo ... ${make} ${keepgoing} ${makejobs} ${target}
${make} ${keepgoing} ${makejobs} all-gdb 2>&1 | log 1 Build.log
fi
fail "compile failed" ! -x gdb/gdb -a ! -x gdb/gdb.exe
# Check that the built GDB can at least print it's architecture.
echo ... run ${target}
rm -f core gdb.core ${dir}/gdb/x
cat <<EOF > x
maint print architecture
quit
EOF
./gdb/gdb -batch -nx -x x 2>&1 | log 1 Gdb.log
fail "gdb dumped core" -r core -o -r gdb.core
fail "gdb printed no output" ! -s Gdb.log
grep -e internal-error Gdb.log && fail "gdb panic" 1
# Replace the build directory with a file as semaphore
# that stops a rebuild. (should the logs be saved?)
cd ${builddir}
rm -f ${target}.tmp
mv ${target}/Gdb.log ${target}.tmp
rm -rf ${target}
mv ${target}.tmp ${target}
# Success!
echo ... ${target} built
) &
# Append this to the list of things to wait for. Grr, there
# is a race condition as the cntrl-c could come in before the
# trap is updated.
set -- $* $!
trap "echo Killing $*; kill $*; wait ; exit 1" 1 2 15
done
# If we've got zero jobs, we're finished
if test $# -eq 0
then
break
fi
# Reap the first running process. Unfortunatly, this doesn't help
# if that process turns out to be the slowest. Anyone got a
# better suggestion?
wait $1 ; shift
# Prune the remaining processes, cuting out any others that have
# finished. This hopefully helps a little with the above problem
# by maximising the number of jobs started each time round the
# loop.
jobs=""
while test $# -gt 0
do
# still running?
if kill -0 $1 > /dev/null 2>&1
then
jobs="${jobs} $1"
else
wait $1
fi
shift
done
set -- ${jobs}
done
exit 0