From d397ea4d6feae1be956327151ea3c2e1ccca109f Mon Sep 17 00:00:00 2001
From: David L Kreitzer <david.l.kreitzer@intel.com>
Date: Fri, 14 Oct 2016 20:44:33 +0000
Subject: [PATCH] Define Contiki OS toolchain

Patch by Michael LeMay

Differential revision: http://reviews.llvm.org/D19854

llvm-svn: 284278
---
 clang/lib/Driver/Driver.cpp     |  3 +++
 clang/lib/Driver/ToolChains.cpp | 11 +++++++++++
 clang/lib/Driver/ToolChains.h   |  8 ++++++++
 clang/test/Driver/fsanitize.c   |  1 +
 4 files changed, 23 insertions(+)

diff --git a/clang/lib/Driver/Driver.cpp b/clang/lib/Driver/Driver.cpp
index 459f601..f2ee1ca 100644
--- a/clang/lib/Driver/Driver.cpp
+++ b/clang/lib/Driver/Driver.cpp
@@ -3120,6 +3120,9 @@ const ToolChain &Driver::getToolChain(const ArgList &Args,
     case llvm::Triple::PS4:
       TC = new toolchains::PS4CPU(*this, Target, Args);
       break;
+    case llvm::Triple::Contiki:
+      TC = new toolchains::Contiki(*this, Target, Args);
+      break;
     default:
       // Of these targets, Hexagon is the only one that might have
       // an OS of Linux, in which case it got handled above already.
diff --git a/clang/lib/Driver/ToolChains.cpp b/clang/lib/Driver/ToolChains.cpp
index e71aaf3..93beab8 100644
--- a/clang/lib/Driver/ToolChains.cpp
+++ b/clang/lib/Driver/ToolChains.cpp
@@ -5305,3 +5305,14 @@ SanitizerMask PS4CPU::getSupportedSanitizers() const {
   Res |= SanitizerKind::Vptr;
   return Res;
 }
+
+Contiki::Contiki(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
+    : Generic_ELF(D, Triple, Args) {}
+
+SanitizerMask Contiki::getSupportedSanitizers() const {
+  const bool IsX86 = getTriple().getArch() == llvm::Triple::x86;
+  SanitizerMask Res = ToolChain::getSupportedSanitizers();
+  if (IsX86)
+    Res |= SanitizerKind::SafeStack;
+  return Res;
+}
diff --git a/clang/lib/Driver/ToolChains.h b/clang/lib/Driver/ToolChains.h
index 36773b2..0838208 100644
--- a/clang/lib/Driver/ToolChains.h
+++ b/clang/lib/Driver/ToolChains.h
@@ -1249,6 +1249,14 @@ protected:
   Tool *buildLinker() const override;
 };
 
+class LLVM_LIBRARY_VISIBILITY Contiki : public Generic_ELF {
+public:
+  Contiki(const Driver &D, const llvm::Triple &Triple,
+          const llvm::opt::ArgList &Args);
+
+  SanitizerMask getSupportedSanitizers() const override;
+};
+
 } // end namespace toolchains
 } // end namespace driver
 } // end namespace clang
diff --git a/clang/test/Driver/fsanitize.c b/clang/test/Driver/fsanitize.c
index 1f6664b..870a262 100644
--- a/clang/test/Driver/fsanitize.c
+++ b/clang/test/Driver/fsanitize.c
@@ -397,6 +397,7 @@
 // RUN: %clang -target x86_64-linux-gnu -fsanitize=safe-stack -fstack-protector-all -### %s 2>&1 | FileCheck %s -check-prefix=SP
 // RUN: %clang -target arm-linux-androideabi -fsanitize=safe-stack -### %s 2>&1 | FileCheck %s -check-prefix=NO-SP
 // RUN: %clang -target aarch64-linux-android -fsanitize=safe-stack -### %s 2>&1 | FileCheck %s -check-prefix=NO-SP
+// RUN: %clang -target i386-contiki-unknown -fsanitize=safe-stack -### %s 2>&1 | FileCheck %s -check-prefix=NO-SP
 // NO-SP-NOT: stack-protector
 // NO-SP: "-fsanitize=safe-stack"
 // SP: "-fsanitize=safe-stack"
-- 
2.7.4