illumos-port-bash/tests/dbg-support3.sub

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# 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 3 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, see <http://www.gnu.org/licenses/>.
#
shopt -s extdebug
callstack(){
deep=${#BASH_ARGV[*]}
echo "deep $deep"
i=0
for ff in ${BASH_ARGV[@]}
do
echo "$i $ff"
i=$(($i+1))
done
}
f3()
{
echo $FUNCNAME: calling callstack
callstack
echo FUNCNAME stack: ${FUNCNAME[@]}
caller 0
echo $FUNCNAME: returning
}
f2()
{
echo $FUNCNAME: calling f3
f3 3 z
echo $FUNCNAME: return from f3
}
f1()
{
echo $FUNCNAME: calling f2
f2 2 y
echo $FUNCNAME: return from f2
}
echo main: calling f1
f1 1 x
echo main: f1 returns