mips-5svr4.h

早期freebsd实现

/* Definitions of target machine for GNU compiler.  MIPS RISC-OS 5.0 System V.4 version.
   Copyright (C) 1992 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, 675 Mass Ave, Cambridge, MA 02139, USA.  */

#define MIPS_SVR4

#define CPP_PREDEFINES "-Dmips -Dunix -Dhost_mips -DMIPSEB -DR3000 -DSYSTYPE_SVR4 \
-D_mips -D_unix -D_host_mips -D_MIPSEB -D_R3000 -D_SYSTYPE_SVR4"

#define SYSTEM_INCLUDE_DIR "/svr4/usr/include"

#define CPP_SPEC "\
%{.cc:	-D__LANGUAGE_C_PLUS_PLUS -D_LANGUAGE_C_PLUS_PLUS} \
%{.cxx:	-D__LANGUAGE_C_PLUS_PLUS -D_LANGUAGE_C_PLUS_PLUS} \
%{.C:	-D__LANGUAGE_C_PLUS_PLUS -D_LANGUAGE_C_PLUS_PLUS} \
%{.m:	-D__LANGUAGE_OBJECTIVE_C -D_LANGUAGE_OBJECTIVE_C} \
%{.S:	-D__LANGUAGE_ASSEMBLY -D_LANGUAGE_ASSEMBLY %{!ansi:-DLANGUAGE_ASSEMBLY}} \
%{!.S:	-D__LANGUAGE_C -D_LANGUAGE_C %{!ansi:-DLANGUAGE_C}}"

#define LINK_SPEC "\
%{G*} \
%{!mgas: \
	%{EB} %{!EB:-EB} \
	%{EL: %e-EL not supported} \
	%{mips1} %{mips2} %{mips3} %{bestGnum} \
	%{shared} %{non_shared} %{call_shared} %{no_archive} %{exact_version} \
	%{!shared: %{!non_shared: %{!call_shared: -non_shared}}}} \
	-systype /svr4/}"
		    
#define LIB_SPEC "%{p:-lprof1} %{pg:-lprof1} -lc crtn.o%s"

#define STARTFILE_SPEC "%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt1.o%s}}"

#define MACHINE_TYPE "RISC-OS System V.4 Mips"

/* Override defaults for finding the MIPS tools.  */
#define MD_STARTFILE_PREFIX "/svr4/usr/lib/cmplrs/cc/"
#define MD_EXEC_PREFIX "/svr4/usr/lib/cmplrs/cc/"

/* Mips System V.4 doesn't have a getpagesize() function needed by the
   trampoline code, so use the POSIX sysconf function to get it.
   This is only done when compiling the trampoline code.  */

#ifdef  L_trampoline
#include <unistd.h>

#define getpagesize()	sysconf(_SC_PAGE_SIZE)
#endif /*  L_trampoline */

/* Use atexit for static constructors/destructors, instead of defining
   our own exit function.  */
#define HAVE_ATEXIT

/* Generate calls to memcpy, etc., not bcopy, etc.  */
#define TARGET_MEM_FUNCTIONS

#include "mips.h"