75 lines
1.4 KiB
Bash
75 lines
1.4 KiB
Bash
#!/bin/sh
|
|
|
|
# Look at /usr/pkg/bin first in case there is an old nm in /usr/bin
|
|
PATH=/usr/pkg/bin:$PATH:/usr/gnu/bin
|
|
|
|
# Does procfs give us some extra 'symbols'?
|
|
IPCVECS=/proc/ipcvecs
|
|
if [ -f $IPCVECS ]
|
|
then EXTRANM="cat $IPCVECS"
|
|
fi
|
|
|
|
# Check usage
|
|
if [ $# -lt 1 ]
|
|
then echo "Usage: unstack <executable> [0x... [0x... ] ]"
|
|
exit 1
|
|
fi
|
|
|
|
# Check invocation mode
|
|
case "`basename $0`" in
|
|
datasizes)
|
|
echo "datasizes is obsolete; please use nm --size-sort instead."
|
|
exit 1
|
|
;;
|
|
unstack)
|
|
mode=stack
|
|
;;
|
|
*)
|
|
echo "Invoked as $0?"
|
|
exit 1
|
|
;;
|
|
esac
|
|
|
|
# Get executable name
|
|
executable=$1
|
|
shift
|
|
|
|
if ! which gawk >/dev/null 2>&1
|
|
then echo "Please install gawk."
|
|
exit 1
|
|
fi
|
|
|
|
# Invoke binutils nm or ack nm?
|
|
if file $executable | grep ELF >/dev/null 2>&1
|
|
then NM="nm"
|
|
else NM="acknm"
|
|
fi
|
|
|
|
SYMLIST=/tmp/unstack.$$
|
|
|
|
# store sorted, filtered nm output once
|
|
(
|
|
$NM $executable | sed 's/^/0x/'
|
|
$EXTRANM | sed 's/^/0x/'
|
|
|
|
# Add shared libraries
|
|
ldd -f"%p %x\n" $executable 2>/dev/null | while read lib addr
|
|
do echo >&2 "Adding $lib at $addr"
|
|
nm -n $lib | sed 's/^/0x/' | grep ' [Tt] ' | \
|
|
gawk -v liboffset=$addr -v libname=$lib --non-decimal-data '{ printf "0x%lx %s %s[%s]\n", $1+liboffset, $2, $3, libname }'
|
|
done
|
|
) | sort -x | grep ' [Tt] [^.]' >$SYMLIST
|
|
|
|
while [ $# -gt 0 ]
|
|
do gawk <$SYMLIST --non-decimal-data -v symoffset=$1 '
|
|
{ if($1 > symoffset) { printf "%s+0x%x\n", name, symoffset-prevoffset; exit }
|
|
name=$3; prevoffset=$1;
|
|
}'
|
|
shift
|
|
done
|
|
|
|
rm -f $SYMLIST
|
|
|
|
exit 1
|
|
|