Creating branches/google/stable and tags/google/stable/2019-05-14 from r360103upstream/google/stable

git-svn-id: https://llvm.org/svn/llvm-project/cfe/branches/google/stable@360714 91177308-0d34-0410-b5e6-96231b3b80d8

4 files changed, 31 insertions, 13 deletions

diff --git a/tools/scan-build/bin/scan-build b/tools/scan-build/bin/scan-build
index fd0dd66b2d..903e19a290 100755
--- a/tools/scan-build/bin/scan-build
+++ b/tools/scan-build/bin/scan-build
@@ -1,9 +1,8 @@
 #!/usr/bin/env perl
 #
-#                     The LLVM Compiler Infrastructure
-#
-# This file is distributed under the University of Illinois Open Source
-# License. See LICENSE.TXT for details.
+# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+# See https://llvm.org/LICENSE.txt for license information.
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 #
 ##===----------------------------------------------------------------------===##
 #
@@ -1461,6 +1460,16 @@ sub ShellEscape {
 }
 
 ##----------------------------------------------------------------------------##
+# FindXcrun - searches for the 'xcrun' executable. Returns "" if not found.
+##----------------------------------------------------------------------------##
+
+sub FindXcrun {
+  my $xcrun = `which xcrun`;
+  chomp $xcrun;
+  return $xcrun;
+}
+
+##----------------------------------------------------------------------------##
 # FindClang - searches for 'clang' executable.
 ##----------------------------------------------------------------------------##
 
@@ -1469,6 +1478,16 @@ sub FindClang {
     $Clang = Cwd::realpath("$RealBin/bin/clang") if (-f "$RealBin/bin/clang");
     if (!defined $Clang || ! -x $Clang) {
       $Clang = Cwd::realpath("$RealBin/clang") if (-f "$RealBin/clang");
+      if (!defined $Clang || ! -x $Clang) {
+        # When an Xcode toolchain is present, look for a clang in the sibling bin
+        # of the parent of the bin directory. So if scan-build is at
+        # $TOOLCHAIN/usr/local/bin/scan-build look for clang at
+        # $TOOLCHAIN/usr/bin/clang.
+        my $has_xcode_toolchain = FindXcrun() ne "";
+        if ($has_xcode_toolchain && -f "$RealBin/../../bin/clang") {
+          $Clang = Cwd::realpath("$RealBin/../../bin/clang");
+        }
+      }
     }
     if (!defined $Clang || ! -x $Clang) {
       return "error: Cannot find an executable 'clang' relative to" .
@@ -1478,8 +1497,7 @@ sub FindClang {
   }
   else {
     if ($Options{AnalyzerDiscoveryMethod} =~ /^[Xx]code$/) {
-      my $xcrun = `which xcrun`;
-      chomp $xcrun;
+      my $xcrun = FindXcrun();
       if ($xcrun eq "") {
         return "Cannot find 'xcrun' to find 'clang' for analysis.\n";
       }
diff --git a/tools/scan-build/bin/set-xcode-analyzer b/tools/scan-build/bin/set-xcode-analyzer
index 8e674823ba..c2a65c9085 100755
--- a/tools/scan-build/bin/set-xcode-analyzer
+++ b/tools/scan-build/bin/set-xcode-analyzer
@@ -42,7 +42,7 @@ def ModifySpec(path, isBuiltinAnalyzer, pathToChecker):
         if line.find("Static Analyzer") >= 0:
           foundAnalyzer = True
       else:
-        m = re.search('^(\s*ExecPath\s*=\s*")', line)
+        m = re.search(r'^(\s*ExecPath\s*=\s*")', line)
         if m:
           line = "".join([m.group(0), pathToChecker, '";\n'])
           # Do not modify further ExecPath's later in the xcspec.
diff --git a/tools/scan-build/libexec/ccc-analyzer b/tools/scan-build/libexec/ccc-analyzer
index 70afb5bcbb..9a4548f167 100755
--- a/tools/scan-build/libexec/ccc-analyzer
+++ b/tools/scan-build/libexec/ccc-analyzer
@@ -1,9 +1,8 @@
 #!/usr/bin/env perl
 #
-#                     The LLVM Compiler Infrastructure
-#
-# This file is distributed under the University of Illinois Open Source
-# License. See LICENSE.TXT for details.
+# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+# See https://llvm.org/LICENSE.txt for license information.
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 #
 ##===----------------------------------------------------------------------===##
 #
diff --git a/tools/scan-build/man/scan-build.1 b/tools/scan-build/man/scan-build.1
index cf7e7b15c3..4f3cd8d103 100644
--- a/tools/scan-build/man/scan-build.1
+++ b/tools/scan-build/man/scan-build.1
@@ -1,5 +1,6 @@
-.\" This file is distributed under the University of Illinois Open Source
-.\" License. See LICENSE.TXT for details.
+.\" Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+.\" See https://llvm.org/LICENSE.txt for license information.
+.\" SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 .\" $Id$
 .Dd May 25, 2012
 .Dt SCAN-BUILD 1