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|
#!/bin/bash
# set -euo pipefail # don't set these, since this script is sourced
if [[ ${CC-} == *gcc* ]]; then
OUR_PRELOAD=$("$CC" -print-file-name=libasan.so)
elif [[ ${CC-} == *clang* ]]; then
# With v19, the library lacks the CPU arch in its name
OUR_PRELOAD=$("$CC" -print-file-name=libclang_rt.asan.so)
if ! test -f "$OUR_PRELOAD"; then
OUR_PRELOAD=$("$CC" -print-file-name=libclang_rt.asan-x86_64.so)
fi
else
cat <<- EOF >&2
WARNING: Unknown compiler CC="${CC-}" - gcc and clang are supported.
Assuming "gcc", manually set the variable and retry if needed.
EOF
OUR_PRELOAD=$(gcc -print-file-name=libasan.so)
fi
if test -f "$OUR_PRELOAD"; then
# In some cases, like in Fedora, the file is a script which cannot be
# preloaded. Attempt to extract the details from within.
if grep -q INPUT "$OUR_PRELOAD"; then
input=$(sed -r -n "s/INPUT \( (.*) \)/\1/p" "$OUR_PRELOAD")
test -f "$input" && OUR_PRELOAD="$input"
fi
LD_PRELOAD=${LD_PRELOAD+${LD_PRELOAD}:}$OUR_PRELOAD
export LD_PRELOAD
cat <<- EOF
LD_PRELOAD has been set to "$LD_PRELOAD".
The sanitizer might report issues with ANY process you execute.
EOF
else
cat <<- EOF >&2
WARNING: compiler returned non-existing library name "$OUR_PRELOAD".
Make sure to install the relevant packages and ensure this script
references the correct library name.
LD_PRELOAD will NOT be set.
EOF
fi
unset OUR_PRELOAD
|
