Myriad: nominally "support" ASAN.

Doesn't work, but needs to be enabled in order to get there.

llvm-svn: 281071

3 files changed, 16 insertions, 4 deletions

diff --git a/clang/lib/Driver/ToolChains.cpp b/clang/lib/Driver/ToolChains.cpp
index e28f7f868f1..3d5183d46e3 100644
--- a/clang/lib/Driver/ToolChains.cpp
+++ b/clang/lib/Driver/ToolChains.cpp
@@ -5042,6 +5042,10 @@ Tool *MyriadToolChain::buildLinker() const {
   return new tools::Myriad::Linker(*this);
 }
 
+SanitizerMask MyriadToolChain::getSupportedSanitizers() const {
+  return SanitizerKind::Address;
+}
+
 WebAssembly::WebAssembly(const Driver &D, const llvm::Triple &Triple,
                          const llvm::opt::ArgList &Args)
   : ToolChain(D, Triple, Args) {
diff --git a/clang/lib/Driver/ToolChains.h b/clang/lib/Driver/ToolChains.h
index 371b9bfe97e..a0dcbf65f96 100644
--- a/clang/lib/Driver/ToolChains.h
+++ b/clang/lib/Driver/ToolChains.h
@@ -1147,6 +1147,7 @@ public:
       llvm::opt::ArgStringList &CC1Args) const override;
   Tool *SelectTool(const JobAction &JA) const override;
   unsigned GetDefaultDwarfVersion() const override { return 2; }
+  SanitizerMask getSupportedSanitizers() const override;
 
 protected:
   Tool *buildLinker() const override;
diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp
index 8cd86434624..8a77fab2fec 100644
--- a/clang/lib/Driver/Tools.cpp
+++ b/clang/lib/Driver/Tools.cpp
@@ -3081,11 +3081,15 @@ static void linkSanitizerRuntimeDeps(const ToolChain &TC,
   // Force linking against the system libraries sanitizers depends on
   // (see PR15823 why this is necessary).
   CmdArgs.push_back("--no-as-needed");
-  CmdArgs.push_back("-lpthread");
-  CmdArgs.push_back("-lrt");
+  // There's no libpthread or librt on RTEMS.
+  if (TC.getTriple().getOS() != llvm::Triple::RTEMS) {
+    CmdArgs.push_back("-lpthread");
+    CmdArgs.push_back("-lrt");
+  }
   CmdArgs.push_back("-lm");
-  // There's no libdl on FreeBSD.
-  if (TC.getTriple().getOS() != llvm::Triple::FreeBSD)
+  // There's no libdl on FreeBSD or RTEMS.
+  if (TC.getTriple().getOS() != llvm::Triple::FreeBSD &&
+      TC.getTriple().getOS() != llvm::Triple::RTEMS)
     CmdArgs.push_back("-ldl");
 }
 
@@ -11055,9 +11059,12 @@ void tools::Myriad::Linker::ConstructJob(Compilation &C, const JobAction &JA,
 
   TC.AddFilePathLibArgs(Args, CmdArgs);
 
+  bool NeedsSanitizerDeps = addSanitizerRuntimes(TC, Args, CmdArgs);
   AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs);
 
   if (UseDefaultLibs) {
+    if (NeedsSanitizerDeps)
+      linkSanitizerRuntimeDeps(TC, CmdArgs);
     if (C.getDriver().CCCIsCXX())
       CmdArgs.push_back("-lstdc++");
     if (T.getOS() == llvm::Triple::RTEMS) {