Add and use config/i386/gnu-user-common.h

	* config.gcc: Add i386/gnu-user-common.h before all
	i386/gnu-user.h and i386/gnu-user64.h usages.

	* config/i386/gnu-user-common.h: New.

	* config/i386/gnu-user.h (CPP_SPEC): Moved to gnu-user-common.h.
	(CC1_SPEC): Likewise.
	(ENDFILE_SPEC): Likewise.
	(DEFAULT_PCC_STRUCT_RETURN): Likewise.
	(TARGET_TLS_DIRECT_SEG_REFS_DEFAULT): Likewise.
	(TARGET_OS_CPP_BUILTINS): Likewise.
	(LIBGCC2_HAS_TF_MODE): Likewise.
	(LIBGCC2_TF_CEXT): Likewise.
	(TF_SIZE): Likewise.
	(TARGET_ASM_FILE_END): Likewise.
	(STACK_CHECK_MOVING_SP): Likewise.
	(STACK_CHECK_STATIC_BUILTIN): Likewise.
	* config/i386/gnu-user64.h: Likewise.

From-SVN: r186427

1 files changed, 66 insertions, 0 deletions

diff --git a/gcc/config/i386/gnu-user-common.h b/gcc/config/i386/gnu-user-common.h
new file mode 100644
index 00000000000..6ca954d55cc
--- /dev/null
+++ b/gcc/config/i386/gnu-user-common.h
@@ -0,0 +1,66 @@
+/* Common definitions for Intel 386 and AMD x86-64 systems using
+   GNU userspace.  Copyright (C) 2012 Free Software Foundation, Inc.
+   Contributed by Ilya Enkovich.
+
+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/>.  */
+
+/* The svr4 ABI for the i386 says that records and unions are returned
+   in memory.  In the 64bit compilation we will turn this flag off in
+   ix86_option_override_internal, as we never do pcc_struct_return
+   scheme on this target.  */
+#undef DEFAULT_PCC_STRUCT_RETURN
+#define DEFAULT_PCC_STRUCT_RETURN 1
+
+/* We arrange for the whole %fs segment to map the tls area.  */
+#undef TARGET_TLS_DIRECT_SEG_REFS_DEFAULT
+#define TARGET_TLS_DIRECT_SEG_REFS_DEFAULT MASK_TLS_DIRECT_SEG_REFS
+
+#define TARGET_OS_CPP_BUILTINS()				\
+  do								\
+    {								\
+	GNU_USER_TARGET_OS_CPP_BUILTINS();			\
+    }								\
+  while (0)
+
+#undef CPP_SPEC
+#define CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
+
+#undef CC1_SPEC
+#define CC1_SPEC "%(cc1_cpu) %{profile:-p}"
+
+/* Similar to standard GNU userspace, but adding -ffast-math support.  */
+#undef  ENDFILE_SPEC
+#define ENDFILE_SPEC \
+  "%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \
+   %{mpc32:crtprec32.o%s} \
+   %{mpc64:crtprec64.o%s} \
+   %{mpc80:crtprec80.o%s} \
+   %{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s"
+
+/* Put all *tf routines in libgcc.  */
+#undef LIBGCC2_HAS_TF_MODE
+#define LIBGCC2_HAS_TF_MODE 1
+#define LIBGCC2_TF_CEXT q
+#define TF_SIZE 113
+
+#define TARGET_ASM_FILE_END file_end_indicate_exec_stack
+
+/* The stack pointer needs to be moved while checking the stack.  */
+#define STACK_CHECK_MOVING_SP 1
+
+/* Static stack checking is supported by means of probes.  */
+#define STACK_CHECK_STATIC_BUILTIN 1