Don't enable PIE on i686-unknown-cloudabi.

We're only going to provide support for using PIE on architectures that
provide PC-relative addressing. i686 is not one of those, so add the
necessary bits for only passing in -pie -zrelro conditionally.

llvm-svn: 278395

1 files changed, 6 insertions, 4 deletions

diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp
index 6011a7fa31a..0efda4858f1 100644
--- a/clang/lib/Driver/Tools.cpp
+++ b/clang/lib/Driver/Tools.cpp
@@ -7523,11 +7523,13 @@ void cloudabi::Linker::ConstructJob(Compilation &C, const JobAction &JA,
 
   // CloudABI only supports static linkage.
   CmdArgs.push_back("-Bstatic");
-
-  // CloudABI uses Position Independent Executables exclusively.
-  CmdArgs.push_back("-pie");
   CmdArgs.push_back("--no-dynamic-linker");
-  CmdArgs.push_back("-zrelro");
+
+  // Provide PIE linker flags in case PIE is default for the architecture.
+  if (ToolChain.isPIEDefault()) {
+    CmdArgs.push_back("-pie");
+    CmdArgs.push_back("-zrelro");
+  }
 
   CmdArgs.push_back("--eh-frame-hdr");
   CmdArgs.push_back("--gc-sections");