qemu/tests/check-block.sh
Daniele Buono 24496fe851 check-block: enable iotests with cfi-icall
cfi-icall is a form of Control-Flow Integrity for indirect function
calls implemented by llvm. It is enabled with a -fsanitize flag.

iotests are currently disabled when -fsanitize options is used, with the
exception of SafeStack.

This patch implements a generic filtering mechanism to allow iotests
with a set of known-to-be-safe -fsanitize option. Then marks SafeStack
and the new options used for cfi-icall safe for iotests

Signed-off-by: Daniele Buono <dbuono@linux.vnet.ibm.com>
Message-Id: <20201204230615.2392-4-dbuono@linux.vnet.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-01-02 21:03:36 +01:00

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#!/bin/sh
# Honor the SPEED environment variable, just like we do it for the qtests.
if [ "$SPEED" = "slow" ]; then
format_list="raw qcow2"
group=
elif [ "$SPEED" = "thorough" ]; then
format_list="raw qcow2 qed vmdk vpc"
group=
else
format_list=qcow2
group="-g auto"
fi
if [ "$#" -ne 0 ]; then
format_list="$@"
fi
if grep -q "CONFIG_GPROF=y" config-host.mak 2>/dev/null ; then
echo "GPROF is enabled ==> Not running the qemu-iotests."
exit 0
fi
# Disable tests with any sanitizer except for specific ones
SANITIZE_FLAGS=$( grep "CFLAGS.*-fsanitize" config-host.mak 2>/dev/null )
ALLOWED_SANITIZE_FLAGS="safe-stack cfi-icall"
#Remove all occurrencies of allowed Sanitize flags
for j in ${ALLOWED_SANITIZE_FLAGS}; do
TMP_FLAGS=${SANITIZE_FLAGS}
SANITIZE_FLAGS=""
for i in ${TMP_FLAGS}; do
if ! echo ${i} | grep -q "${j}" 2>/dev/null; then
SANITIZE_FLAGS="${SANITIZE_FLAGS} ${i}"
fi
done
done
if echo ${SANITIZE_FLAGS} | grep -q "\-fsanitize" 2>/dev/null; then
# Have a sanitize flag that is not allowed, stop
echo "Sanitizers are enabled ==> Not running the qemu-iotests."
exit 0
fi
if [ -z "$(find . -name 'qemu-system-*' -print)" ]; then
echo "No qemu-system binary available ==> Not running the qemu-iotests."
exit 0
fi
if ! command -v bash >/dev/null 2>&1 ; then
echo "bash not available ==> Not running the qemu-iotests."
exit 0
fi
if LANG=C bash --version | grep -q 'GNU bash, version [123]' ; then
echo "bash version too old ==> Not running the qemu-iotests."
exit 0
fi
if ! (sed --version | grep 'GNU sed') > /dev/null 2>&1 ; then
if ! command -v gsed >/dev/null 2>&1; then
echo "GNU sed not available ==> Not running the qemu-iotests."
exit 0
fi
fi
cd tests/qemu-iotests
# QEMU_CHECK_BLOCK_AUTO is used to disable some unstable sub-tests
export QEMU_CHECK_BLOCK_AUTO=1
ret=0
for fmt in $format_list ; do
./check -makecheck -$fmt $group || ret=1
done
exit $ret