netbsd.h

linux下的gcc编译器

/* Configuration for a ns32532 running NetBSD as the target machine.
   Copyright (C) 1988, 1994, 1995, 1996, 1998, 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.  */


#define TARGET_OS_CPP_BUILTINS()			\
  do							\
    {							\
      NETBSD_OS_CPP_BUILTINS_AOUT();			\
      builtin_define ("__ns32k__");			\
    }							\
  while (0)

/* Compile for the floating point unit & 32532 by default;
   Don't assume SB is zero;
   Don't use bit-field instructions;
   FPU is 32381;
   Use multiply-add instructions */

#undef TARGET_DEFAULT
#define TARGET_DEFAULT \
  (MASK_32532 | MASK_NO_SB | MASK_NO_BITFIELD | \
   MASK_32381 | MASK_IEEE_COMPARE | MASK_MULT_ADD)

/* 32-bit alignment for efficiency */

#undef POINTER_BOUNDARY
#define POINTER_BOUNDARY 32

/* 32-bit alignment for efficiency */

#undef FUNCTION_BOUNDARY
#define FUNCTION_BOUNDARY 32

/* 32532 spec says it can handle any alignment.  Rumor from tm-ns32k.h
   tells this might not be actually true (but it's for 32032, perhaps
   National has fixed the bug for 32532).  You might have to change this
   if the bug still exists. */

#undef STRICT_ALIGNMENT
#define STRICT_ALIGNMENT 0

/* Use pc relative addressing whenever possible,
   it's more efficient than absolute (ns32k.c)
   You have to fix a bug in gas 1.38.1 to make this work with gas,
   patch available from [e-mail].
   (NetBSD's gas version has this patch already applied) */

#define PC_RELATIVE

/* Operand of bsr or jsr should be just the address.  */

#define CALL_MEMREF_IMPLICIT

/* movd insns may have floating point constant operands.  */

#define MOVD_FLOAT_OK

/* Define a CPP_SPEC appropriate for NetBSD.  */

#undef CPP_SPEC
#define CPP_SPEC NETBSD_CPP_SPEC

/* Make gcc agree with <machine/ansi.h> */

#undef SIZE_TYPE
#define SIZE_TYPE "unsigned int"

#undef PTRDIFF_TYPE
#define PTRDIFF_TYPE "int"

/* This is BSD, so it wants DBX format.  */

#define DBX_DEBUGGING_INFO 1

/* Do not break .stabs pseudos into continuations.  */

#define DBX_CONTIN_LENGTH 0

/* This is the char to use for continuation (in case we need to turn
   continuation back on).  */

#define DBX_CONTIN_CHAR '?'

/* Don't default to pcc-struct-return, because gcc is the only compiler, and
   we want to retain compatibility with older gcc versions.  */

#undef PCC_STATIC_STRUCT_RETURN
#define DEFAULT_PCC_STRUCT_RETURN 0

/* Until they use ELF or something that handles dwarf2 unwinds
   and initialization stuff better.  */
#define DWARF2_UNWIND_INFO 0