BaseTools GCC: introduce GCC5 toolchain to support GCC v5.x in LTO mode

[mirror_edk2.git] / MdePkg / Include / X64 / ProcessorBind.h

diff --git a/MdePkg/Include/X64/ProcessorBind.h b/MdePkg/Include/X64/ProcessorBind.h
index df324340d1932b8ce87ce750ab3ae145e7783ded..ffcf2b034414b1a1b925623989eb4b3be1bf35cb 100644 (file)
--- a/MdePkg/Include/X64/ProcessorBind.h
+++ b/MdePkg/Include/X64/ProcessorBind.h
@@ -1,7 +1,7 @@
 /** @file\r
   Processor or Compiler specific defines and types x64 (Intel 64, AMD64).\r
 \r
-  Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>\r
+  Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>\r
   This program and the accompanying materials                          \r
   are licensed and made available under the terms and conditions of the BSD License         \r
   which accompanies this distribution.  The full text of the license may be found at        \r
@@ -27,6 +27,19 @@
 #pragma pack()\r
 #endif\r
 \r
+#if defined(__GNUC__) && defined(__pic__) && !defined(USING_LTO)\r
+//\r
+// Mark all symbol declarations and references as hidden, meaning they will\r
+// not be subject to symbol preemption. This allows the compiler to refer to\r
+// symbols directly using relative references rather than via the GOT, which\r
+// contains absolute symbol addresses that are subject to runtime relocation.\r
+//\r
+// The LTO linker will not emit GOT based relocations when all symbol\r
+// references can be resolved locally, and so there is no need to set the\r
+// pragma in that case (and doing so will cause other issues).\r
+//\r
+#pragma GCC visibility push (hidden)\r
+#endif\r
 \r
 #if defined(__INTEL_COMPILER)\r
 //\r
@@ -94,6 +107,26 @@
 //\r
 #pragma warning ( disable : 4206 )\r
 \r
+#if _MSC_VER == 1800 || _MSC_VER == 1900\r
+\r
+//\r
+// Disable these warnings for VS2013.\r
+//\r
+\r
+//\r
+// This warning is for potentially uninitialized local variable, and it may cause false \r
+// positive issues in VS2013 and VS2015 build\r
+//\r
+#pragma warning ( disable : 4701 )\r
+  \r
+//\r
+// This warning is for potentially uninitialized local pointer variable, and it may cause \r
+// false positive issues in VS2013 and VS2015 build\r
+//\r
+#pragma warning ( disable : 4703 )\r
+  \r
+#endif\r
+\r
 #endif\r
 \r
 \r
@@ -249,12 +282,12 @@ typedef INT64   INTN;
   ///\r
 #elif defined(_MSC_EXTENSIONS)\r
   ///\r
-  /// Microsoft* compiler specific method for EFIAPI calling convension\r
+  /// Microsoft* compiler specific method for EFIAPI calling convention.\r
   /// \r
   #define EFIAPI __cdecl  \r
 #elif defined(__GNUC__)\r
   ///\r
-  /// Define the standard calling convention reguardless of optimization level.\r
+  /// Define the standard calling convention regardless of optimization level.\r
   /// The GCC support assumes a GCC compiler that supports the EFI ABI. The EFI\r
   /// ABI is much closer to the x64 Microsoft* ABI than standard x64 (x86-64) \r
   /// GCC ABI. Thus a standard x64 (x86-64) GCC compiler can not be used for \r
@@ -290,5 +323,9 @@ typedef INT64   INTN;
 **/\r
 #define FUNCTION_ENTRY_POINT(FunctionPointer) (VOID *)(UINTN)(FunctionPointer)\r
 \r
+#ifndef __USER_LABEL_PREFIX__\r
+#define __USER_LABEL_PREFIX__\r
+#endif\r
+\r
 #endif\r
 \r