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[PATCH 1/2] check-block: enable iotests with cfi-icall
From: |
Daniele Buono |
Subject: |
[PATCH 1/2] check-block: enable iotests with cfi-icall |
Date: |
Thu, 2 Jul 2020 01:49:47 -0400 |
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 mark SafeStack
and the new options used for cfi-icall safe for iotests
Signed-off-by: Daniele Buono <dbuono@linux.vnet.ibm.com>
---
tests/check-block.sh | 18 +++++++++++-------
1 file changed, 11 insertions(+), 7 deletions(-)
diff --git a/tests/check-block.sh b/tests/check-block.sh
index 8e29c868e5..7691213bd9 100755
--- a/tests/check-block.sh
+++ b/tests/check-block.sh
@@ -21,14 +21,18 @@ if grep -q "CONFIG_GPROF=y" config-host.mak 2>/dev/null ;
then
exit 0
fi
-# Disable tests with any sanitizer except for SafeStack
-CFLAGS=$( grep "CFLAGS.*-fsanitize" config-host.mak 2>/dev/null )
-SANITIZE_FLAGS=""
-#Remove all occurrencies of -fsanitize=safe-stack
-for i in ${CFLAGS}; do
- if [ "${i}" != "-fsanitize=safe-stack" ]; then
- SANITIZE_FLAGS="${SANITIZE_FLAGS} ${i}"
+# Disable tests with any sanitizer except for specific ones
+SANITIZE_FLAGS=$( grep "CFLAGS.*-fsanitize" config-host.mak 2>/dev/null )
+ALLOWED_SANITIZE_FLAGS="safe-stack cfi-icall sanitize-blacklist"
+#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
--
2.26.2