/* Definitions of target machine for GNU compiler.
   Encore Multimax (OSF/1 with OSF/rose) version.
   Copyright (C) 1991 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.  */

#include "i386gas.h"

#define OSF_OS

/* Use a more friendly abort which prints internal compiler error,
   rather than just dumping core.  */

#ifndef abort
#define abort fancy_abort
#endif

/* Prefix that appears before all global/static identifiers, except for
   temporary labels.  */

#define IDENTIFIER_PREFIX "_"

/* Suffix that appears after all global/static identifiers, except for
   temporary labels.  */

#define IDENTIFIER_SUFFIX ""

/* Change default predefines.  */
#ifdef CPP_PREDEFINES
#undef CPP_PREDEFINES
#endif
#define CPP_PREDEFINES "-DOSF -DOSF1 -Dunix -Di386"

#ifdef  CPP_SPEC
#undef  CPP_SPEC
#endif
#define CPP_SPEC "\
%{.S:	-D__LANGUAGE_ASSEMBLY %{!ansi:-DLANGUAGE_ASSEMBLY}} \
%{.cc:	-D__LANGUAGE_C_PLUS_PLUS} \
%{.cxx:	-D__LANGUAGE_C_PLUS_PLUS} \
%{.C:	-D__LANGUAGE_C_PLUS_PLUS} \
%{.m:	-D__LANGUAGE_OBJECTIVE_C} \
%{!.S:	-D__LANGUAGE_C %{!ansi:-DLANGUAGE_C}}"

#ifdef  CC1_SPEC
#undef  CC1_SPEC
#endif
#define CC1_SPEC       ""

#ifndef CC1PLUS_SPEC
#define CC1PLUS_SPEC "%{!fgnu-binutils: -fno-gnu-binutils}"
#endif

#ifdef ASM_SPEC
#undef ASM_SPEC
#endif
#define ASM_SPEC       ""

#ifdef  LINK_SPEC
#undef  LINK_SPEC
#endif
#define LINK_SPEC      "%{v*: -v}                           \
                        %{pic-none: -noshrlib} %{noshrlib}  \
			%{!pic-none: -warn_nopic}           \
                        %{nostdlib} %{glue}"

#ifdef  LIB_SPEC
#undef  LIB_SPEC
#endif

/* For now, force static libraries instead of shared, but do so that
   does not use -noshrlib, since the old linker does not provide it.  */

#define LIB_SPEC "%{!pic-none: %{!pic-lib: -L/usr/ccs/lib }} -lc"

#ifdef  LIBG_SPEC
#undef  LIBG_SPEC
#endif
#define LIBG_SPEC      ""

#ifdef  STARTFILE_SPEC
#undef  STARTFILE_SPEC
#endif
#define STARTFILE_SPEC "%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}"

#ifdef  MACHINE_TYPE
#undef  MACHINE_TYPE
#endif

#define MACHINE_TYPE   ((!TARGET_486) ? "80386 running OSF/1 with OSF/rose objects" :  \
                                        "80486 running OSF/1 with OSF/rose objects")

#ifdef  MD_EXEC_PREFIX
#undef  MD_EXEC_PREFIX
#endif
#define MD_EXEC_PREFIX		"/usr/ccs/gcc/"

#ifdef  MD_STARTFILE_PREFIX
#undef  MD_STARTFILE_PREFIX
#endif
#define MD_STARTFILE_PREFIX	"/usr/ccs/lib/"

/* Tell final.c we don't need a label passed to mcount.  */
#define NO_PROFILE_DATA

#undef  FUNCTION_PROFILER
#define FUNCTION_PROFILER(FILE, LABELNO) fprintf (FILE, "\tcall _mcount\n")

/* Tell collect that the object format is OSF/rose.  */
#define OBJECT_FORMAT_ROSE

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

/* If defined, a C string constant for the assembler operation to
   identify the following data as initialization code.  If not
   defined, GNU CC will assume such a section does not exist.

   OSF/rose doesn't presently have an init section, but this macro
   also controls whether or not __main is called from main, collect
   will however build an initialization section directly.  */

#define INIT_SECTION_ASM_OP ".init"

/* Define this macro meaning that gcc should find the library 'libgcc.a'
   by hand, rather than passing the argeument '-lgcc' to tell the linker
   to do the search */
#define LINK_LIBGCC_SPECIAL

/* Defines to be able to build libgcc.a with GCC.  */

/* It might seem that these are not important, since gcc 2 will never
   call libgcc for these functions.  But programs might be linked with
   code compiled by gcc 1, and then these will be used.  */

#define perform_udivsi3(a,b)						\
{									\
  register int dx asm("dx");						\
  register int ax asm("ax");						\
									\
  dx = 0;								\
  ax = a;								\
  asm ("divl %3" : "=a" (ax), "=d" (dx) : "a" (ax), "g" (b), "d" (dx));	\
  return ax;								\
}

#define perform_divsi3(a,b)						\
{									\
  register int dx asm("dx");						\
  register int ax asm("ax");						\
									\
  ax = a;								\
  asm ("cltd\n\tidivl %3" : "=a" (ax), "=d" (dx) : "a" (ax), "g" (b));	\
  return ax;								\
}

#define perform_umodsi3(a,b)						\
{									\
  register int dx asm("dx");						\
  register int ax asm("ax");						\
									\
  dx = 0;								\
  ax = a;								\
  asm ("divl %3" : "=a" (ax), "=d" (dx) : "a" (ax), "g" (b), "d" (dx));	\
  return dx;								\
}

#define perform_modsi3(a,b)						\
{									\
  register int dx asm("dx");						\
  register int ax asm("ax");						\
									\
  ax = a;								\
  asm ("cltd\n\tidivl %3" : "=a" (ax), "=d" (dx) : "a" (ax), "g" (b));	\
  return dx;								\
}

#define perform_fixdfsi(a)						\
{									\
  auto unsigned short ostatus;						\
  auto unsigned short nstatus;						\
  auto int ret;								\
									\
  &ostatus;			/* guarantee these land in memory */	\
  &nstatus;								\
  &ret;									\
									\
  asm volatile ("fnstcw %0" : "=m" (ostatus));				\
  nstatus = ostatus | 0x0c00;						\
  asm volatile ("fldcw %0" : /* no outputs */ : "m" (nstatus));		\
  asm volatile ("fldl %0" : /* no outputs */ : "m" (a));		\
  asm volatile ("fistpl %0" : "=m" (ret));				\
  asm volatile ("fldcw %0" : /* no outputs */ : "m" (ostatus));		\
									\
  return ret;								\
}
