linux-kernel - [PATCH 01/12] perf clang: Fix build with Clang 9

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Date:   Thu, 16 Jan 2020 10:48:03 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Ingo Molnar <mingo@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>
Cc:     Jiri Olsa <jolsa@...nel.org>, Namhyung Kim <namhyung@...nel.org>,
        Clark Williams <williams@...hat.com>,
        linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        "Maciej S. Szmigiero" <mail@...iej.szmigiero.name>,
        Dennis Schridde <devurandom@....net>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        clang-built-linux@...glegroups.com,
        Denis Pronin <dannftk@...dex.ru>, Jiri Olsa <jolsa@...hat.com>,
        Mark Rutland <mark.rutland@....com>,
        Naohiro Aota <naota@...sp.net>,
        Peter Zijlstra <peterz@...radead.org>,
        Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 01/12] perf clang: Fix build with Clang 9

From: "Maciej S. Szmigiero" <mail@...iej.szmigiero.name>

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@...iej.szmigiero.name>
Reviewed-by: Dennis Schridde <devurandom@....net>
Cc: Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Cc: clang-built-linux@...glegroups.com
Cc: Denis Pronin <dannftk@...dex.ru>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Mark Rutland <mark.rutland@....com>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Naohiro Aota <naota@...sp.net>
Cc: Peter Zijlstra <peterz@...radead.org>
Link: http://lore.kernel.org/lkml/20191228171314.946469-2-mail@maciej.szmigiero.name
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 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 =
-- 
2.21.1