The shell script attempts to suppress core dumps like this:
    old_ulimit=$(ulimit -c)
    ulimit -c 0
    $QEMU_IO arg...
    ulimit -c "$old_ulimit"
This breaks the test hard unless the limit was zero to begin with!
ulimit sets both hard and soft limit by default, and (re-)raising the
hard limit requires privileges.  Broken since it was added in commit
dc68afe.
Could be fixed by adding -S to set only the soft limit, but I'm not
sure how portable that is in practice.  Simply do it in a subshell
instead, like this:
    (ulimit -c 0; exec $QEMU_IO arg...)
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
		
	
		
			
				
	
	
		
			175 lines
		
	
	
		
			4.4 KiB
		
	
	
	
		
			Bash
		
	
	
	
	
	
			
		
		
	
	
			175 lines
		
	
	
		
			4.4 KiB
		
	
	
	
		
			Bash
		
	
	
	
	
	
#!/bin/bash
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#
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# Copyright (C) 2009 Red Hat, Inc.
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# Copyright (c) 2000-2001 Silicon Graphics, Inc.  All Rights Reserved.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it would be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program.  If not, see <http://www.gnu.org/licenses/>.
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#
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#
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# standard filters
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#
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# Checks that given_value is in range of correct_value +/- tolerance.
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# Tolerance can be an absolute value or a percentage of the correct value
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# (see examples with tolerances below).
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# Outputs suitable message to stdout if it's not in range.
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#
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# A verbose option, -v, may be used as the LAST argument
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#
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# e.g.
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# foo: 0.0298 = 0.03 +/- 5%
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# _within_tolerance "foo" 0.0298 0.03 5%
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#
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# foo: 0.0298 = 0.03 +/- 0.01
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# _within_tolerance "foo" 0.0298 0.03 0.01
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#
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# foo: 0.0298 = 0.03 -0.01 +0.002
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# _within_tolerance "foo" 0.0298 0.03 0.01 0.002
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#
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# foo: verbose output of 0.0298 = 0.03 +/- 5%
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# _within_tolerance "foo" 0.0298 0.03 5% -v
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_within_tolerance()
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{
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  _name=$1
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  _given_val=$2
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  _correct_val=$3
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  _mintol=$4
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  _maxtol=$_mintol
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  _verbose=0
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  _debug=false
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  # maxtol arg is optional
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  # verbose arg is optional
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  if [ $# -ge 5 ]
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  then
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     if [ "$5" = "-v" ]
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     then
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        _verbose=1
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     else
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        _maxtol=$5
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     fi
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  fi
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  if [ $# -ge 6 ]
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  then
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     [ "$6" = "-v" ] && _verbose=1
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  fi
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  # find min with or without %
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  _mintolerance=`echo $_mintol | sed -e 's/%//'`
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  if [ $_mintol = $_mintolerance ]
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  then
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      _min=`echo "scale=5; $_correct_val-$_mintolerance" | bc`
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  else
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      _min=`echo "scale=5; $_correct_val-$_mintolerance*0.01*$_correct_val" | bc`
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  fi
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  # find max with or without %
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  _maxtolerance=`echo $_maxtol | sed -e 's/%//'`
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  if [ $_maxtol = $_maxtolerance ]
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  then
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      _max=`echo "scale=5; $_correct_val+$_maxtolerance" | bc`
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  else
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      _max=`echo "scale=5; $_correct_val+$_maxtolerance*0.01*$_correct_val" | bc`
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  fi
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  $_debug && echo "min = $_min"
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  $_debug && echo "max = $_max"
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  cat <<EOF >$tmp.bc.1
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scale=5;
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if ($_min <= $_given_val) 1;
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if ($_min > $_given_val) 0;
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EOF
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  cat <<EOF >$tmp.bc.2
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scale=5;
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if ($_given_val <= $_max) 1;
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if ($_given_val > $_max) 0;
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EOF
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  _above_min=`bc <$tmp.bc.1`
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  _below_max=`bc <$tmp.bc.2`
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  rm -f $tmp.bc.[12]
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  _in_range=`expr $_above_min \& $_below_max`
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  # fix up min, max precision for output
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  # can vary for 5.3, 6.2
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  _min=`echo $_min | sed -e 's/0*$//'` # get rid of trailling zeroes
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  _max=`echo $_max | sed -e 's/0*$//'` # get rid of trailling zeroes
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  if [ $_in_range -eq 1 ]
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  then
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        [ $_verbose -eq 1 ] && echo $_name is in range
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        return 0
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  else
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        [ $_verbose -eq 1 ] && echo $_name has value of $_given_val
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        [ $_verbose -eq 1 ] && echo $_name is NOT in range $_min .. $_max
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        return 1
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  fi
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}
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# ctime(3) dates
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#
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_filter_date()
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{
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    sed \
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        -e 's/[A-Z][a-z][a-z] [A-z][a-z][a-z]  *[0-9][0-9]* [0-9][0-9]:[0-9][0-9]:[0-9][0-9] [0-9][0-9][0-9][0-9]$/DATE/'
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}
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# replace occurrences of the actual TEST_DIR value with TEST_DIR
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_filter_testdir()
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{
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    sed -e "s#$TEST_DIR#TEST_DIR#g"
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}
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# replace occurrences of the actual IMGFMT value with IMGFMT
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_filter_imgfmt()
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{
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    sed -e "s#$IMGFMT#IMGFMT#g"
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}
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# Removes \r from messages
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_filter_win32()
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{
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    sed -e 's/\r//g'
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}
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# sanitize qemu-io output
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_filter_qemu_io()
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{
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    _filter_win32 | sed -e "s/[0-9]* ops\; [0-9/:. sec]* ([0-9/.inf]* [EPTGMKiBbytes]*\/sec and [0-9/.inf]* ops\/sec)/X ops\; XX:XX:XX.X (XXX YYY\/sec and XXX ops\/sec)/" \
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        -e "s/: line [0-9][0-9]*:  *[0-9][0-9]*\( Aborted\)/:\1/" \
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        -e "s/qemu-io> //g"
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}
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# replace occurrences of QEMU_PROG with "qemu"
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_filter_qemu()
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{
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    sed -e "s#\\(^\\|(qemu) \\)$(basename $QEMU_PROG):#\1QEMU_PROG:#" \
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        -e 's#^QEMU [0-9]\+\.[0-9]\+\.[0-9]\+ monitor#QEMU X.Y.Z monitor#' \
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        -e $'s#\r##' # QEMU monitor uses \r\n line endings
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}
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# replace problematic QMP output like timestamps
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_filter_qmp()
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{
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    _filter_win32 | \
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    sed -e 's#\("\(micro\)\?seconds": \)[0-9]\+#\1 TIMESTAMP#g' \
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        -e 's#^{"QMP":.*}$#QMP_VERSION#'
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}
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# make sure this script returns success
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/bin/true
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