Add the _CALL_LINUX preprocessor define for ppc linux platforms.

This typically is only for a new enough linker (bfd >= 2.16.2 or gold), but
our ppc suppport post-dates this and it should work on all linux platforms. It
is guaranteed to work on all elfv2 platforms.

llvm-svn: 298765

1 files changed, 6 insertions, 0 deletions

diff --git a/clang/lib/Basic/Targets.cpp b/clang/lib/Basic/Targets.cpp
index 33fdfe7b6f6..fda3ed45073 100644
--- a/clang/lib/Basic/Targets.cpp
+++ b/clang/lib/Basic/Targets.cpp
@@ -1237,6 +1237,12 @@ void PPCTargetInfo::getTargetDefines(const LangOptions &Opts,
   if (ABI == "elfv2")
     Builder.defineMacro("_CALL_ELF", "2");
 
+  // This typically is only for a new enough linker (bfd >= 2.16.2 or gold), but
+  // our suppport post-dates this and it should work on all linux platforms. It
+  // is guaranteed to work on all elfv2 platforms.
+  if (getTriple().getOS() == llvm::Triple::Linux)
+    Builder.defineMacro("_CALL_LINUX", "1");
+
   // Subtarget options.
   Builder.defineMacro("__NATURAL_ALIGNMENT__");
   Builder.defineMacro("__REGISTER_PREFIX__", "");