Preliminary i386-pc-nto-qnx6 support.

* config/i386/nto.h: New.
* config/i386/t-nto: New.
* config.gcc (i[34567]86-*-nto-qnx*): New.

From-SVN: r70203

gcc/ChangeLog

+2003-08-06  Graeme Peterson <gp@qnx.com>
+
+	* config/i386/nto.h: New.
+	* config/i386/t-nto: New.
+	* config.gcc (i[34567]86-*-nto-qnx*): New.
+
 2003-08-06  Phil Edwards  <pme@gcc.gnu.org>
 
 	* doc/install.texi (*-*-solaris2*):  Refine configure instructions.

gcc/config.gcc

@@ -1066,6 +1066,12 @@ i[34567]86-*-mach*)
 #	tmake_file=t-libc-ok
 	use_collect2=yes
 	;;
+i[34567]86-*-nto-qnx*)
+	tm_file="${tm_file} i386/att.h dbxelf.h tm-dwarf2.h elfos.h svr4.h i386/nto.h"
+	tmake_file=i386/t-nto
+	gnu_ld=yes
+	gas=yes
+	;;
 i[34567]86-*-rtems*)
 	tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h i386/i386elf.h i386/rtemself.h rtems.h"
 	extra_parts="crtbegin.o crtend.o crti.o crtn.o"

gcc/config/i386/nto.h

+/* Definitions for Intel 386 running QNX/Neutrino.
+   Copyright (C) 2002 Free Software Foundation, Inc.
+
+This file is part of GNU CC.
+
+GNU CC 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 2, or (at your option)
+any later version.
+
+GNU CC 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 GNU CC; see the file COPYING.  If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include "i386/unix.h"
+
+#undef  DEFAULT_PCC_STRUCT_RETURN
+#define DEFAULT_PCC_STRUCT_RETURN 1
+
+#undef TARGET_VERSION
+#define TARGET_VERSION	fprintf (stderr, " (QNX/Neutrino/i386 ELF)");
+
+#undef TARGET_OS_CPP_BUILTINS
+#define TARGET_OS_CPP_BUILTINS()		\
+  do						\
+    {						\
+        builtin_define_std ("__X86__");		\
+        builtin_define_std ("__QNXNTO__");	\
+        builtin_define_std ("__QNX__");		\
+        builtin_define_std ("__ELF__");		\
+        builtin_define_std ("__LITTLEENDIAN__");\
+        builtin_assert ("system=qnx");		\
+        builtin_assert ("system=qnxnto");	\
+        builtin_assert ("system=nto");		\
+        builtin_assert ("system=unix");		\
+        if (flag_pic)				\
+          {					\
+            builtin_define ("__PIC__");		\
+            builtin_define ("__pic__");		\
+          }					\
+    }						\
+  while (0)
+
+#undef THREAD_MODEL_SPEC
+#define THREAD_MODEL_SPEC "posix"
+
+#ifdef CROSS_COMPILE
+#define SYSROOT_SUFFIX_SPEC "x86"
+#endif
+
+#undef STARTFILE_SPEC
+#define STARTFILE_SPEC \
+"%{!shared: \
+  %{!symbolic: \
+    %{pg:mcrt1.o%s} \
+    %{!pg:%{p:mcrt1.o%s} \
+    %{!p:crt1.o%s}}}} \
+crti.o%s \
+%{fexceptions: crtbegin.o%s} \
+%{!fexceptions: %R/lib/crtbegin.o}"
+
+#undef ENDFILE_SPEC
+#define ENDFILE_SPEC \
+  "crtend.o%s crtn.o%s"
+
+#undef LINK_SPEC
+#define LINK_SPEC \
+  "%{h*} %{v:-V} \
+   %{b} \
+   %{static:-dn -Bstatic} \
+   %{shared:-G -dy -z text} \
+   %{symbolic:-Bsymbolic -G -dy -z text} \
+   %{G:-G} \
+   %{YP,*} \
+   %{!YP,*:%{p:-Y P,%R/lib} \
+    %{!p:-Y P,%R/lib}} \
+   %{Qy:} %{!Qn:-Qy} \
+   -m i386nto \
+   %{!shared: --dynamic-linker /usr/lib/ldqnx.so.2}"
+
+
+#undef SIZE_TYPE
+#define SIZE_TYPE "unsigned int"
+
+#undef PTRDIFF_TYPE
+#define PTRDIFF_TYPE "int"
+
+#undef WCHAR_TYPE
+#define WCHAR_TYPE "long unsigned int"
+
+#undef WCHAR_TYPE_SIZE
+#define WCHAR_TYPE_SIZE BITS_PER_WORD
+
+#define NO_IMPLICIT_EXTERN_C 1
+

gcc/config/i386/t-nto

+# Don't run fixproto
+STMP_FIXPROTO =
+
+CRTSTUFF_T_CFLAGS = -fno-omit-frame-pointer -fPIC
+TARGET_LIBGCC2_CFLAGS = -fPIC -fexceptions
+
+EXTRA_PARTS = crtbegin.o