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From:   "Maciej S. Szmigiero" <mail@maciej.szmigiero.name>
To:     Peter Zijlstra <peterz@infradead.org>,
        Ingo Molnar <mingo@redhat.com>,
        Arnaldo Carvalho de Melo <acme@kernel.org>
Cc:     Mark Rutland <mark.rutland@arm.com>,
        Alexander Shishkin <alexander.shishkin@linux.intel.com>,
        Jiri Olsa <jolsa@redhat.com>,
        Namhyung Kim <namhyung@kernel.org>,
        Dennis Schridde <devurandom@gmx.net>,
        Denis Pronin <dannftk@yandex.ru>,
        Naohiro Aota <naota@elisp.net>,
        clang-built-linux@googlegroups.com, linux-kernel@vger.kernel.org
Subject: [PATCH] perf clang: Fix build with Clang 9
Date:   Sat, 28 Dec 2019 18:13:14 +0100
Message-Id: <20191228171314.946469-2-mail@maciej.szmigiero.name>
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LLVM D59377 (included in Clang 9) refactored Clang VFS construction a bit,
which broke perf clang build.
Let's fix it.

Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Reviewed-by: Dennis Schridde <devurandom@gmx.net>
---
 tools/perf/util/c++/clang.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/perf/util/c++/clang.cpp b/tools/perf/util/c++/clang.cpp
index fc361c3f8570..c8885dfa3667 100644
--- a/tools/perf/util/c++/clang.cpp
+++ b/tools/perf/util/c++/clang.cpp
@@ -71,7 +71,11 @@ getModuleFromSource(llvm::opt::ArgStringList CFlags,
 	CompilerInstance Clang;
 	Clang.createDiagnostics();
 
+#if CLANG_VERSION_MAJOR < 9
 	Clang.setVirtualFileSystem(&*VFS);
+#else
+	Clang.createFileManager(&*VFS);
+#endif
 
 #if CLANG_VERSION_MAJOR < 4
 	IntrusiveRefCntPtr<CompilerInvocation> CI =