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|
#!/bin/sh
set -e
if [ $# -eq 0 ]; then
cat << EOF
Syntax:
$(basename $0) OPT1 [OPT2...]"
Example:
$(basename $0) [prepend|append] -fsanitize=address -fno-common -U_FORTIFY_SOURCE
By default flags are appending.
EOF
exit 1
fi
FLAGS="$@"
if [ $(find $(dirname $0) -name \*-real | wc -l) -gt 0 ]; then
echo >&2 "$(basename $0): directory was already processed, aborting"
exit 1
fi
case "$1" in
prepend)
shift
PREFLAGS="$@"
POSTFLAGS=
;;
append)
shift
PREFLAGS=
POSTFLAGS="$@"
;;
*)
PREFLAGS=
POSTFLAGS="$@"
;;
esac
TMP=$(pwd)/tmp.$$
cat > $TMP << EOF
#!/bin/sh
if echo "$PREFLAGS "\$@" $POSTFLAGS" | grep -q -- "-fsanitize=undefined" && echo "\$@" | grep -q "\.gch\>"; then
# UBSan doesn't support precompiled headers. See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66343
echo "Precompiled headers currently not supported by UBSan" >&2
# Don't instrument kernel modules
# Don't instrument with "-nostdlib" linking
elif ! echo "\$@" | grep -q -e __KERNEL__ -e \-nostdlib; then
# Use readlink in order to follow symlinks if any
\$(readlink -f \$0)-real $PREFLAGS "\$@" $POSTFLAGS
else
\$(readlink -f \$0)-real "\$@"
fi
EOF
chmod +x $TMP
find -L $(dirname $0) -type f -a -perm -a=x | grep -E '(gcc|g\+\+|c\+\+)$' | while read tool; do
mv $tool $tool-real
cp $TMP $tool
done
if [ -d /emul ]; then
find -L /emul -type f -a -perm -a=x | grep -E '(gcc|g\+\+|c\+\+)$' | while read tool; do
ln -sf $(basename $tool) $tool-real
done
fi
rm $TMP
|
