lynx-ng.h

gcc-2.95.3 Linux下最常用的C编译器

/* Target independent definitions for LynxOS, using Lynx's old as and ld.
   Copyright (C) 1993 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.  */

/* This is for backwards compatibility with older Lynx tools, which use
   a version of a.out format. */

#undef ASM_SPEC
#define ASM_SPEC "%{mcoff:-C}"

#undef CPP_SPEC
#define CPP_SPEC "%{mthreads:-D_MULTITHREADED}  \
  %{mposix:-D_POSIX_SOURCE}  \
  %{msystem-v:-I/usr/include_v}"

/* Provide required defaults for linker switches.  */

#undef LINK_SPEC
#define LINK_SPEC "%{msystem-v:-V} %{mcoff:-k}"

#undef LIB_SPEC
#define LIB_SPEC "%{mthreads:-L/lib/thread/}%{msystem-v:-lc_v}%{!msystem-v:%{mposix:-lc_p} -lc}"

#undef STARTFILE_SPEC
#define STARTFILE_SPEC "%{p:%{mcoff:pinit1.o%s}%{!mcoff:pinit.o%s}}%{!p:%{msystem-v:%{mcoff:vinit1.o%s}%{!mcoff:vinit.o%s}}%{!msystem-v:%{mcoff:init1.o%s}%{!mcoff:init.o%s}}}"

#undef ENDFILE_SPEC
#define ENDFILE_SPEC "%{mcoff:initn.o%s} %{p:_etext.o%s}"

#undef SIZE_TYPE
#define SIZE_TYPE "unsigned int"

#undef WCHAR_TYPE
#define WCHAR_TYPE "int"

#undef PTRDIFF_TYPE
#define PTRDIFF_TYPE "long int"

/* We want to output DBX debugging information.  */

#define DBX_DEBUGGING_INFO
#undef PREFERRED_DEBUGGING_TYPE
#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG

/* We optionally want to be able to produce SDB debugging output so that
   we can create debuggable SDB/coff files.  This won't be needed when
   stabs-in-coff works.  */

#define SDB_DEBUGGING_INFO

/* Generate calls to memcpy, memcmp and memset.  */

#define TARGET_MEM_FUNCTIONS

/* Handle #pragma pack and sometimes #pragma weak.  */

#define HANDLE_SYSV_PRAGMA

#define TARGET_THREADS	(target_flags & MASK_THREADS)
#define MASK_THREADS	0x40000000

#define TARGET_POSIX	(target_flags & MASK_POSIX)
#define MASK_POSIX	0x20000000

#define TARGET_SYSTEM_V	(target_flags & MASK_SYSTEM_V)
#define MASK_SYSTEM_V	0x10000000

#define TARGET_COFF	(target_flags & MASK_COFF)
#define MASK_COFF	0x08000000

#undef SUBTARGET_SWITCHES
#define SUBTARGET_SWITCHES \
    {"threads",		MASK_THREADS},		\
    {"posix",		MASK_POSIX},		\
    {"system-v",	MASK_SYSTEM_V},		\
    {"coff",		MASK_COFF},

#undef SUBTARGET_OVERRIDE_OPTIONS
#define SUBTARGET_OVERRIDE_OPTIONS \
{ if (TARGET_SYSTEM_V && profile_flag)			\
    warning ("-msystem-v and -p are incompatible");		\
  if (TARGET_SYSTEM_V && TARGET_THREADS)			\
    warning ("-msystem-v and -mthreads are incompatible"); }

/* Define this so that C++ destructors will use atexit.  */

#define HAVE_ATEXIT

/* This is defined only so that we can find the assembler.  Everything else
   is in /bin.  */

#define MD_EXEC_PREFIX "/usr/local/lib/gcc-"

/* This is needed because /bin/ld does not handle -L options correctly. */

#define LINK_LIBGCC_SPECIAL_1

/* The Lynx linker considers __main to be a possible entry point, so we
   must use a different name.  */

#define NAME__MAIN "____main"
#define SYMBOL__MAIN ____main