vsk added inline comments.
================
Comment at: lib/Driver/SanitizerArgs.cpp:118
BlacklistFiles.push_back(Path.str());
+ else if (BL.Mask == CFI)
+ D.Diag(clang::diag::err_drv_no_such_file) << Path;
----------------
CFI can be enabled with other sanitizers, such as ubsan. I think you'll need
'Mask & CFI' here. It'd be great to have a test for this case, too (i.e
-fsanitize=cfi,undefined -resource-dir=/dev/null should also give you this
diagnostic).
================
Comment at: test/Driver/fsanitize-blacklist.c:65
+// If cfi_blacklist.txt cannot be found in the resource dir, driver should
fail.
+// RUN: %clang -target x86_64-linux-gnu -fsanitize=cfi -resource-dir=/dev/null
%s -### 2>&1 | FileCheck %s --check-prefix=CHECK-MISSING-CFI-BLACKLIST
----------------
It'd be more helpful for readers if this comment were in the source, at the
point where the diagnostic is emitted.
https://reviews.llvm.org/D46403
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