#!/bin/sh
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.
-k Keep going. Do not stop after the first build fails.
--keep Keep builds. Do not remove each build when finished.
-e <regexp> Regular expression for selecting the targets to build.
-f Force rebuild. Even rebuild previously built directories.
-v Be more (and more, and more) verbose.
Arguments:
<srcdir> Source code directory.
<builddir> Build directory.
Environment variables examined (with default if not defined):
MAKE (make)"
EOF
exit 1;
cat <<NOTYET
-b <maxbuilds> Run <maxbuild> builds in parallel.
On a single cpu machine, 1 is recommended.
NOTYET
}
### COMMAND LINE OPTIONS
makejobs=
maxbuilds=1
keepgoing=
force=false
targexp=""
verbose=0
keep=false
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
;;
--keep )
keep=true
;;
-e )
# A regular expression for selecting targets
shift
test $# -ge 1 || usage
targexp="${targexp} -e ${1}"
;;
-f )
# Force a rebuild
force=true ;
;;
-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`
# 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
continue
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, build and test it.
echo "$alltarg" | while read target gdbopts simopts
do
trap "exit 1" 1 2 15
dir=${builddir}/${target}
# Should a scratch rebuild be forced, for perhaps the entire
# build be skipped?
if ${force}
then
echo forcing ${target} ...
rm -rf ${dir}
elif test -f ${dir}
then
echo "${target}"
continue
else
echo ${target} ...
fi
# 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 ${dir} || exit 1
# Configure, if not already. Should this go back to being
# separate and done in parallel?
if test ! -r Makefile
then
# Default SIMOPTS to GDBOPTS.
test -z "${simopts}" && simopts="${gdbopts}"
# The config options
__target="--target=${target}"
__enable_gdb_build_warnings=`test -z "${gdbopts}" \
|| echo "--enable-gdb-build-warnings=${gdbopts}"`
__enable_sim_build_warnings=`test -z "${simopts}" \
|| echo "--enable-sim-build-warnings=${simopts}"`
__configure="${srcdir}/configure \
${__target} \
${__enable_gdb_build_warnings} \
${__enable_sim_build_warnings}"
echo ... ${__configure}
trap "echo Removing partially configured ${dir} directory ...; rm -rf ${dir}; exit 1" 1 2 15
${__configure} 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
# Iff the build fails remove the final build target so that
# the follow-on code knows things failed. Stops the follow-on
# code thinking that a failed rebuild succedded (executable
# left around from previous build).
echo ... ${make} ${keepgoing} ${makejobs} ${target}
( ${make} ${keepgoing} ${makejobs} all-gdb || rm -f gdb/gdb gdb/gdb.exe
) 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
echo ... cleanup ${target}
# Create a sed script that cleans up the output from GDB.
rm -f mbuild.sed
touch mbuild.sed || exit 1
# Rules to replace <0xNNNN> with the corresponding function's
# name.
sed -n -e '/<0x0*>/d' -e 's/^.*<0x\([0-9a-f]*\)>.*$/0x\1/p' Gdb.log \
| sort -u \
| while read addr
do
func="`addr2line -f -e ./gdb/gdb -s ${addr} | sed -n -e 1p`"
test ${verbose} -gt 0 && echo "${addr} ${func}" 1>&2
echo "s/<${addr}>/<${func}>/g"
done >> mbuild.sed
# Rules to strip the leading paths off of file names.
echo 's/"\/.*\/gdb\//"gdb\//g' >> mbuild.sed
# Run the script
sed -f mbuild.sed Gdb.log > Mbuild.log
# Replace the build directory with a file as semaphore that stops
# a rebuild. (should the logs be saved?)
cd ${builddir}
if ${keep}
then
:
else
rm -f ${target}.tmp
mv ${target}/Mbuild.log ${target}.tmp
rm -rf ${target}
mv ${target}.tmp ${target}
fi
# Success!
echo ... ${target} built
done
exit 0