From: Douglas Katzman <dougk@google.com>
Date: Fri, 9 Sep 2016 18:20:49 +0000 (+0000)
Subject: Myriad: nominally "support" ASAN.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=27f089e8b25206731c445d5cb8f5fa00d3b83c67;p=clang

Myriad: nominally "support" ASAN.

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

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@281071 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Driver/ToolChains.cpp b/lib/Driver/ToolChains.cpp
index e28f7f868f..3d5183d46e 100644
--- a/lib/Driver/ToolChains.cpp
+++ b/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/lib/Driver/ToolChains.h b/lib/Driver/ToolChains.h
index 371b9bfe97..a0dcbf65f9 100644
--- a/lib/Driver/ToolChains.h
+++ b/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/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index 8cd8643462..8a77fab2fe 100644
--- a/lib/Driver/Tools.cpp
+++ b/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) {
diff --git a/test/Driver/sanitizer-ld.c b/test/Driver/sanitizer-ld.c
index d22815e7de..698f695c90 100644
--- a/test/Driver/sanitizer-ld.c
+++ b/test/Driver/sanitizer-ld.c
@@ -151,6 +151,15 @@
 // CHECK-ASAN-ANDROID-SHARED: libclang_rt.asan-arm-android.so"
 // CHECK-ASAN-ANDROID-SHARED-NOT: "-lpthread"
 
+// RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
+// RUN:     -target sparcel-myriad-rtems-elf -fsanitize=address \
+// RUN:     --sysroot=%S/Inputs/basic_myriad_tree \
+// RUN:   | FileCheck --check-prefix=CHECK-ASAN-MYRIAD %s
+//
+// CHECK-ASAN-MYRIAD: "{{(.*[^.0-9A-Z_a-z])?}}ld{{(.exe)?}}"
+// CHECK-ASAN-MYRIAD-NOT: "-lc"
+// CHECK-ASAN-MYRIAD: libclang_rt.asan-sparcel.a"
+
 // RUN: %clangxx -no-canonical-prefixes %s -### -o %t.o 2>&1 \
 // RUN:     -target x86_64-unknown-linux -stdlib=platform -lstdc++ \
 // RUN:     -fsanitize=thread \