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|
#!/bin/bash
#
# makes a graph of how the libraries are linked togethere
#
#set -x
DOTFILE=ionlinks.dot
while getopts "ho:x" opt; do
case "$opt" in
[?h])
echo "Usage: $0 [-x] [Additional files to verify]"
echo ""
echo "Options:"
echo " -o <FILENAME> Use FILENAME instead of ionlinks.dot"
echo " -x Also verify all executables"
exit 1
;;
o)
DOTFILE=$OPTARG
;;
x)
CHECK_EXE=yes
;;
esac
done
shift $(expr $OPTIND - 1 )
SLIBS=.libs/*.so
BINS=$(find .libs -perm /111 -and -not -name '*.*' -and -not -name 'lt-*')
export LD_LIBRARY_PATH=$PWD/.libs
LIBS=$SLIBS
if [ -n "$CHECK_EXE" ]; then
LIBS="$SLIBS $BINS"
fi
# make the .dot file
(
echo "strict digraph ionlibs {"
for LIB in $LIBS $@; do
# node
LIB_NAME=$(basename $LIB .so)
echo "${LIB_NAME}"
# explicit libs
LINKED_LIBS=$(ldd $LIB| grep .libs | sed -r 's/^.*\.libs\/(lib[^\.]+).*$/\1/')
if [ ! -z "$LINKED_LIBS" ]; then
for LINKED_LIB in $LINKED_LIBS; do
echo "$LIB_NAME->$LINKED_LIB [color=green] ;"
done
fi
# missing libs
MISSING_SYMBOLS=$(ldd -r $LIB 2>&1 | egrep '^undefined symbol' | sed -r 's/^undefined symbol: ([^ ]+).*$/\1/')
if [ ! -z "$MISSING_SYMBOLS" ]; then
for SYM in $MISSING_SYMBOLS; do
MISSING_LINK=$(nm -A .libs/*.so | egrep -i " [td] $SYM" | sed -r 's/^.*\/(lib[^.]+).*$/\1/')
if [ -z "$MISSING_LINK" ]; then
echo "lib $LIB needs symbol $SYM, but can't find it" 1>&2
echo "$LIB_NAME->NOT_FOUND [color=red] ;"
continue
fi
for I in $(echo $MISSING_LINK | sort | uniq); do
echo "$LIB_NAME->$I [color=red] ;"
done
done
fi
# unused links
UNUSED_LINKS=$(ldd -r -u $LIB 2> /dev/null | egrep -v '^(Unused direct dependencies:|[ ]+)$' | sed -r 's/^.*\/(lib[^\.]+)\..*$/\1/')
if [ ! -z "$UNUSED_LINKS" ]; then
for UNUSED_LINK in $UNUSED_LINKS; do
# "linux-gate" has been reported as an unused dependency since the Ubuntu 11.10 -> 12.04 x86 upgrade.
# http://www.trilithium.com/johan/2005/08/linux-gate/ gives a good explanation of the library, which isn't actually a "physical"
# but rather "a virtual DSO, a shared object exposed by the kernel at a fixed address in every process' memory"
#
# Since it isn't a "real" library, for now I think it's safe to exclude it from unused dependency concerns.
#
# Exception added by Josh Schendel on 5/3/2012 for IOS 3.0.1 release.
#
#
#Ignore libpthread here because we need it for nearly all of our libraries/executables and not including it where
#its strictly unneeded would complicate the autotools build system.
#
# Exception added by Samuel Jero on 6/27/2013
if [[ "$UNUSED_LINK" != *linux-gate* ]] && [[ "$UNUSED_LINK" != *pthread* ]]; then
echo "$LIB_NAME->$UNUSED_LINK [color=purple] ;"
fi
done
fi
done
echo "}"
) > $DOTFILE
#PNGFILE=${DOTFILE/.dot/.png}
#dot -Tpng -o "$PNGFILE" "$DOTFILE"
|
