[PATCH] D86822: [clang] Enable -fsanitize=thread on Fuchsia.

[Marco Vanotti via Phabricator via cfe-commits]

charco created this revision.
charco added reviewers: mcgrathr, phosek.
Herald added subscribers: cfe-commits, danielkiss.
Herald added a project: clang.
charco requested review of this revision.

This CL modifies clang enabling using -fsanitize=thread on fuchsia. The
change doesn't build the runtime for fuchsia, it just enables the
instrumentation to be used.

pair-programmed-with: mdempsky at google.com
Change-Id: I816c4d240d1f15e9eae2803fb8ba3a7bf667ed51


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D86822

Files:
  clang/lib/Driver/ToolChains/CommonArgs.cpp
  clang/lib/Driver/ToolChains/Fuchsia.cpp


Index: clang/lib/Driver/ToolChains/Fuchsia.cpp
===================================================================
--- clang/lib/Driver/ToolChains/Fuchsia.cpp
+++ clang/lib/Driver/ToolChains/Fuchsia.cpp
@@ -95,6 +95,8 @@
     std::string Dyld = D.DyldPrefix;
     if (SanArgs.needsAsanRt() && SanArgs.needsSharedRt())
       Dyld += "asan/";
+    if (SanArgs.needsTsanRt() && SanArgs.needsSharedRt())
+      Dyld += "tsan/";
     Dyld += "ld.so.1";
     CmdArgs.push_back("-dynamic-linker");
     CmdArgs.push_back(Args.MakeArgString(Dyld));
@@ -349,6 +351,7 @@
   Res |= SanitizerKind::Leak;
   Res |= SanitizerKind::SafeStack;
   Res |= SanitizerKind::Scudo;
+  Res |= SanitizerKind::Thread;
   return Res;
 }
 
Index: clang/lib/Driver/ToolChains/CommonArgs.cpp
===================================================================
--- clang/lib/Driver/ToolChains/CommonArgs.cpp
+++ clang/lib/Driver/ToolChains/CommonArgs.cpp
@@ -698,6 +698,8 @@
       else
         SharedRuntimes.push_back("scudo");
     }
+    if (SanArgs.needsTsanRt() && SanArgs.linkRuntimes())
+      SharedRuntimes.push_back("tsan");
     if (SanArgs.needsHwasanRt() && SanArgs.linkRuntimes())
       SharedRuntimes.push_back("hwasan");
   }
@@ -735,7 +737,8 @@
     if (SanArgs.linkCXXRuntimes())
       StaticRuntimes.push_back("msan_cxx");
   }
-  if (SanArgs.needsTsanRt() && SanArgs.linkRuntimes()) {
+  if (!SanArgs.needsSharedRt() && SanArgs.needsTsanRt() &&
+      SanArgs.linkRuntimes()) {
     StaticRuntimes.push_back("tsan");
     if (SanArgs.linkCXXRuntimes())
       StaticRuntimes.push_back("tsan_cxx");


-------------- next part --------------
A non-text attachment was scrubbed...
Name: D86822.288725.patch
Type: text/x-patch
Size: 1593 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/cfe-commits/attachments/20200828/f2233843/attachment.bin>