--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/config/svr4.h	Fri Jul 17 14:47:48 2009 +0900
@@ -0,0 +1,219 @@
+/* Operating system specific defines to be used when targeting GCC for some
+   generic System V Release 4 system.
+   Copyright (C) 1991, 1994, 1995, 1996, 1997, 1998, 1999,
+   2000, 2001, 2007, 2008, 2009 Free Software Foundation, Inc.
+   Contributed by Ron Guilmette (rfg@monkeys.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.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+
+/* To use this file, make up a line like that in config.gcc:
+
+	tm_file="$tm_file elfos.h svr4.h MACHINE/svr4.h"
+
+   where MACHINE is replaced by the name of the basic hardware that you
+   are targeting for.  Then, in the file MACHINE/svr4.h, put any really
+   system-specific defines (or overrides of defines) which you find that
+   you need.
+*/
+
+/* Define a symbol indicating that we are using svr4.h.  */
+#define USING_SVR4_H
+
+/* Cpp, assembler, linker, library, and startfile spec's.  */
+
+/* This defines which switch letters take arguments.  On svr4, most of
+   the normal cases (defined in gcc.c) apply, and we also have -h* and
+   -z* options (for the linker).  Note however that there is no such
+   thing as a -T option for svr4.  */
+
+#undef  SWITCH_TAKES_ARG
+#define SWITCH_TAKES_ARG(CHAR)		\
+  (DEFAULT_SWITCH_TAKES_ARG (CHAR)	\
+   || (CHAR) == 'h'			\
+   || (CHAR) == 'x'			\
+   || (CHAR) == 'z')
+
+/* This defines which multi-letter switches take arguments.  On svr4,
+   there are no such switches except those implemented by GCC itself.  */
+
+#define WORD_SWITCH_TAKES_ARG(STR)			\
+ (DEFAULT_WORD_SWITCH_TAKES_ARG (STR)			\
+  && strcmp (STR, "Tdata") && strcmp (STR, "Ttext")	\
+  && strcmp (STR, "Tbss"))
+
+/* Provide an ASM_SPEC appropriate for svr4.
+   If we're not using GAS, we try to support as
+   many of the specialized svr4 assembler options as seems reasonable,
+   given that there are certain options which we can't (or shouldn't)
+   support directly due to the fact that they conflict with other options
+   for other svr4 tools (e.g. ld) or with other options for GCC itself.
+   For example, we don't support the -o (output file) or -R (remove
+   input file) options because GCC already handles these things.  We
+   also don't support the -m (run m4) option for the assembler because
+   that conflicts with the -m (produce load map) option of the svr4
+   linker.  We do however allow passing arbitrary options to the svr4
+   assembler via the -Wa, option.
+
+   Note that gcc doesn't allow a space to follow -Y in a -Ym,* or -Yd,*
+   option.
+
+   The svr4 assembler wants '-' on the command line if it's expected to
+   read its stdin.
+*/
+
+#ifdef USE_GAS
+#define SVR4_ASM_SPEC \
+  "%{v:-V} %{Wa,*:%*}"
+#else
+#define SVR4_ASM_SPEC \
+  "%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*}"
+#endif
+
+#undef  ASM_SPEC
+#define ASM_SPEC SVR4_ASM_SPEC
+
+#define AS_NEEDS_DASH_FOR_PIPED_INPUT
+
+/* Under svr4, the normal location of the `ld' and `as' programs is the
+   /usr/ccs/bin directory.  */
+
+#ifndef CROSS_DIRECTORY_STRUCTURE
+#undef  MD_EXEC_PREFIX
+#define MD_EXEC_PREFIX "/usr/ccs/bin/"
+#endif
+
+/* Under svr4, the normal location of the various *crt*.o files is the
+   /usr/ccs/lib directory.  */
+
+#ifndef CROSS_DIRECTORY_STRUCTURE
+#undef  MD_STARTFILE_PREFIX
+#define MD_STARTFILE_PREFIX "/usr/ccs/lib/"
+#endif
+
+/* Provide a LIB_SPEC appropriate for svr4.  Here we tack on the default
+   standard C library (unless we are building a shared library).  */
+
+#undef	LIB_SPEC
+#define LIB_SPEC "%{!shared:%{!symbolic:-lc}}"
+
+/* Provide an ENDFILE_SPEC appropriate for svr4.  Here we tack on our own
+   magical crtend.o file (see crtstuff.c) which provides part of the
+   support for getting C++ file-scope static object constructed before
+   entering `main', followed by the normal svr3/svr4 "finalizer" file,
+   which is either `gcrtn.o' or `crtn.o'.  */
+
+#undef  ENDFILE_SPEC
+#define ENDFILE_SPEC "crtend.o%s %{pg:gcrtn.o%s}%{!pg:crtn.o%s}"
+
+/* Provide a LINK_SPEC appropriate for svr4.  Here we provide support
+   for the special GCC options -static, -shared, and -symbolic which
+   allow us to link things in one of these three modes by applying the
+   appropriate combinations of options at link-time.  We also provide
+   support here for as many of the other svr4 linker options as seems
+   reasonable, given that some of them conflict with options for other
+   svr4 tools (e.g. the assembler).  In particular, we do support the
+   -z*, -V, -b, -t, -Qy, -Qn, and -YP* options here, and the -e*, -l*,
+   -o*, -r, -s, -u*, and -L* options are directly supported by gcc.c
+   itself.  We don't directly support the -m (generate load map)
+   option because that conflicts with the -m (run m4) option of the
+   svr4 assembler.  We also don't directly support the svr4 linker's
+   -I* or -M* options because these conflict with existing GCC
+   options.  We do however allow passing arbitrary options to the svr4
+   linker via the -Wl, option, in gcc.c.  We don't support the svr4
+   linker's -a option at all because it is totally useless and because
+   it conflicts with GCC's own -a option.
+
+   Note that gcc doesn't allow a space to follow -Y in a -YP,* option.
+
+   When the -G link option is used (-shared and -symbolic) a final link is
+   not being done.  */
+
+#undef	LINK_SPEC
+#ifdef CROSS_DIRECTORY_STRUCTURE
+#define LINK_SPEC "%{h*} %{v:-V} \
+		   %{b} \
+		   %{static:-dn -Bstatic} \
+		   %{shared:-G -dy -z text} \
+		   %{symbolic:-Bsymbolic -G -dy -z text} \
+		   %{G:-G} \
+		   %{YP,*} \
+		   %{Qy:} %{!Qn:-Qy}"
+#else
+#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,/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
+		    %{!p:-Y P,/usr/ccs/lib:/usr/lib}} \
+		   %{Qy:} %{!Qn:-Qy}"
+#endif
+
+/* Gcc automatically adds in one of the files /usr/ccs/lib/values-Xc.o
+   or /usr/ccs/lib/values-Xa.o for each final link step (depending
+   upon the other gcc options selected, such as -ansi).  These files
+   each contain one (initialized) copy of a special variable called
+   `_lib_version'.  Each one of these files has `_lib_version' initialized
+   to a different (enum) value.  The SVR4 library routines query the
+   value of `_lib_version' at run to decide how they should behave.
+   Specifically, they decide (based upon the value of `_lib_version')
+   if they will act in a strictly ANSI conforming manner or not.  */
+
+#undef	STARTFILE_SPEC
+#define STARTFILE_SPEC "%{!shared: \
+			 %{!symbolic: \
+			  %{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s}%{!p:crt1.o%s}}}}\
+			%{pg:gcrti.o%s}%{!pg:crti.o%s} \
+			%{ansi:values-Xc.o%s} \
+			%{!ansi:values-Xa.o%s} \
+ 			crtbegin.o%s"
+
+/* The numbers used to denote specific machine registers in the System V
+   Release 4 DWARF debugging information are quite likely to be totally
+   different from the numbers used in BSD stabs debugging information
+   for the same kind of target machine.  Thus, we undefine the macro
+   DBX_REGISTER_NUMBER here as an extra inducement to get people to
+   provide proper machine-specific definitions of DBX_REGISTER_NUMBER
+   (which is also used to provide DWARF registers numbers in dwarfout.c)
+   in their tm.h files which include this file.  */
+
+#undef DBX_REGISTER_NUMBER
+
+/* Define the actual types of some ANSI-mandated types.  (These
+   definitions should work for most SVR4 systems).  */
+
+#undef  SIZE_TYPE
+#define SIZE_TYPE "unsigned int"
+
+#undef  PTRDIFF_TYPE
+#define PTRDIFF_TYPE "int"
+
+#undef  WCHAR_TYPE
+#define WCHAR_TYPE "long int"
+
+#undef  WCHAR_TYPE_SIZE
+#define WCHAR_TYPE_SIZE BITS_PER_WORD
+
+#define TARGET_POSIX_IO