Import libcompiler_rt into HEAD and add Makefiles.

Obtained from:	user/ed/compiler-rt

1 files changed, 54 insertions, 0 deletions

diff --git a/contrib/compiler-rt/lib/assembly.h b/contrib/compiler-rt/lib/assembly.h
new file mode 100644
index 0000000..c2d5a34
--- /dev/null
+++ b/contrib/compiler-rt/lib/assembly.h
@@ -0,0 +1,54 @@
+/* ===-- assembly.h - compiler-rt assembler support macros -----------------===
+ *
+ *                     The LLVM Compiler Infrastructure
+ *
+ * This file is distributed under the University of Illinois Open Source
+ * License. See LICENSE.TXT for details.
+ *
+ * ===----------------------------------------------------------------------===
+ *
+ * This file defines macros for use in compiler-rt assembler source.
+ * This file is not part of the interface of this library.
+ *
+ * ===----------------------------------------------------------------------===
+ */
+
+#ifndef COMPILERRT_ASSEMBLY_H
+#define COMPILERRT_ASSEMBLY_H
+
+#if defined(__POWERPC__) || defined(__powerpc__) || defined(__ppc__)
+#define SEPARATOR @
+#else
+#define SEPARATOR ;
+#endif
+
+/* We can't use __USER_LABEL_PREFIX__ here, it isn't possible to concatenate the
+   *values* of two macros. This is quite brittle, though. */
+#if defined(__APPLE__)
+#define SYMBOL_NAME(name) _##name
+#else
+#define SYMBOL_NAME(name) name
+#endif
+
+#ifdef VISIBILITY_HIDDEN
+#define DEFINE_COMPILERRT_FUNCTION(name) \
+  .globl SYMBOL_NAME(name) SEPARATOR     \
+  .private_extern SYMBOL_NAME(name) SEPARATOR    \
+  SYMBOL_NAME(name):
+#else
+#define DEFINE_COMPILERRT_FUNCTION(name) \
+  .globl SYMBOL_NAME(name) SEPARATOR     \
+  SYMBOL_NAME(name):
+#endif
+
+#define DEFINE_COMPILERRT_PRIVATE_FUNCTION(name) \
+  .globl SYMBOL_NAME(name) SEPARATOR             \
+  .private_extern SYMBOL_NAME(name) SEPARATOR    \
+  SYMBOL_NAME(name):
+
+#define DEFINE_COMPILERRT_PRIVATE_FUNCTION_UNMANGLED(name) \
+  .globl name SEPARATOR             \
+  .private_extern name SEPARATOR    \
+  name:
+
+#endif /* COMPILERRT_ASSEMBLY_H */