Add gcc-4.6. Synced to @180989

Change-Id: Ie3676586e1d8e3c8cd9f07d022f450d05fa08439
svn://gcc.gnu.org/svn/gcc/branches/google/gcc-4_6-mobile

1 files changed, 104 insertions, 0 deletions

diff --git a/gcc-4.6/gcc/config/s390/linux.h b/gcc-4.6/gcc/config/s390/linux.h
new file mode 100644
index 000000000..95cead119
--- /dev/null
+++ b/gcc-4.6/gcc/config/s390/linux.h
@@ -0,0 +1,104 @@
+/* Definitions for Linux for S/390.
+   Copyright (C) 1999, 2000, 2001, 2002, 2004, 2005, 2006, 2007, 2010
+   Free Software Foundation, Inc.
+   Contributed by Hartmut Penner (hpenner@de.ibm.com) and
+                  Ulrich Weigand (uweigand@de.ibm.com).
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+#ifndef _LINUX_H
+#define _LINUX_H
+
+/* Target specific version string.  */
+
+#ifdef DEFAULT_TARGET_64BIT
+#undef  TARGET_VERSION
+#define TARGET_VERSION fprintf (stderr, " (Linux for zSeries)");
+#else
+#undef  TARGET_VERSION
+#define TARGET_VERSION fprintf (stderr, " (Linux for S/390)");
+#endif
+
+
+/* Target specific type definitions.  */
+
+/* ??? Do we really want long as size_t on 31-bit?  */
+#undef  SIZE_TYPE
+#define SIZE_TYPE (TARGET_64BIT ? "long unsigned int" : "long unsigned int")
+#undef  PTRDIFF_TYPE
+#define PTRDIFF_TYPE (TARGET_64BIT ? "long int" : "int")
+
+#undef  WCHAR_TYPE
+#define WCHAR_TYPE "int"
+#undef  WCHAR_TYPE_SIZE
+#define WCHAR_TYPE_SIZE 32
+
+
+/* Target specific preprocessor settings.  */
+
+#define TARGET_OS_CPP_BUILTINS()		\
+  do						\
+    {						\
+      LINUX_TARGET_OS_CPP_BUILTINS();		\
+    }						\
+  while (0)
+
+
+/* Target specific assembler settings.  */
+
+#undef  ASM_SPEC
+#define ASM_SPEC "%{m31&m64}%{mesa&mzarch}%{march=*}"
+
+
+/* Target specific linker settings.  */
+
+#ifdef DEFAULT_TARGET_64BIT
+#define MULTILIB_DEFAULTS { "m64" }
+#else
+#define MULTILIB_DEFAULTS { "m31" }
+#endif
+
+#define GLIBC_DYNAMIC_LINKER32 "/lib/ld.so.1"
+#define GLIBC_DYNAMIC_LINKER64 "/lib/ld64.so.1"
+
+#undef  LINK_SPEC
+#define LINK_SPEC \
+  "%{m31:-m elf_s390}%{m64:-m elf64_s390} \
+   %{shared:-shared} \
+   %{!shared: \
+      %{static:-static} \
+      %{!static: \
+	%{rdynamic:-export-dynamic} \
+	%{m31:-dynamic-linker " LINUX_DYNAMIC_LINKER32 "} \
+	%{m64:-dynamic-linker " LINUX_DYNAMIC_LINKER64 "}}}"
+
+#define CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
+
+#define TARGET_ASM_FILE_END file_end_indicate_exec_stack
+
+#define MD_UNWIND_SUPPORT "config/s390/linux-unwind.h"
+
+#ifdef TARGET_LIBC_PROVIDES_SSP
+/* s390 glibc provides __stack_chk_guard in 0x14(tp),
+   s390x glibc provides it at 0x28(tp).  */
+#define TARGET_THREAD_SSP_OFFSET        (TARGET_64BIT ? 0x28 : 0x14)
+#endif
+
+/* Define if long doubles should be mangled as 'g'.  */
+#define TARGET_ALTERNATE_LONG_DOUBLE_MANGLING
+
+#endif