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/* Definitions for Intel 386 running system V with gnu tools
Copyright (C) 1988 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 1, 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 "tm-i386.h"
/* Use the bsd assembler syntax. */
/* we need to do this because gas is really a bsd style assembler,
* and so doesn't work well this these att-isms:
*
* ASM_OUTPUT_SKIP is .set .,.+N, which isn't implemented in gas
* ASM_OUTPUT_LOCAL is done with .set .,.+N, but that can't be
* used to define bss static space
*
* Next is the question of whether to uses underscores. RMS didn't
* like this idea at first, but since it is now obvious that we
* need this separate tm file for use with gas, at least to get
* dbx debugging info. */
#include "tm-bsd386.h"
/* these come from tm-bsd386.h, but are specific to sequent */
#undef DBX_NO_XREFS
#undef DBX_CONTIN_LENGTH
/* By default, target has a 80387. */
#define TARGET_DEFAULT 1
#if 0 /* These aren't right for GNU ld. */
/* Use crt1.o as a startup file and crtn.o as a closing file. */
#define STARTFILE_SPEC \
"%{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s}%{!p:crt1.o%s}}"
#define LIB_SPEC "%{p:-L/usr/lib/libp}%{pg:-L/usr/lib/libp} -lc crtn.o%s"
#endif
/* Specify predefined symbols in preprocessor. */
#define CPP_PREDEFINES "-Dunix -Di386"
/* Allow #sccs in preprocessor. */
#define SCCS_DIRECTIVE
/* Output #ident as a .ident. */
#define ASM_OUTPUT_IDENT(FILE, NAME) fprintf (FILE, "\t.ident \"%s\"\n", NAME);
/* We do not want to output SDB debugging information. */
#undef SDB_DEBUGGING_INFO
/* We want to output DBX debugging information. */
#define DBX_DEBUGGING_INFO
/* Implicit library calls should use memcpy, not bcopy, etc. */
#define TARGET_MEM_FUNCTIONS
/* Writing `int' for a bitfield forces int alignment for the structure. */
#define PCC_BITFIELD_TYPE_MATTERS 1
#undef ASM_FILE_START
#define ASM_FILE_START(FILE) \
fprintf (FILE, "\t.file\t\"%s\"\n", dump_base_name);
/* This is how to output a reference to a user-level label named NAME. */
#undef ASM_OUTPUT_LABELREF
#define ASM_OUTPUT_LABELREF(FILE,NAME) \
fprintf (FILE, "_%s", NAME)
#if 0 /* People say gas uses the log as the arg to .align. */
/* When using gas, .align N aligns to an N-byte boundary. */
#undef ASM_OUTPUT_ALIGN
#define ASM_OUTPUT_ALIGN(FILE,LOG) \
if ((LOG)!=0) fprintf ((FILE), "\t.align %d\n", 1<<(LOG))
#endif
/* Align labels, etc. at 4-byte boundaries. */
#define ASM_OUTPUT_ALIGN_CODE(FILE) \
fprintf ((FILE), "\t.align 2\n"); /* Use log of 4 as arg. */
#if 0
#define ASM_OUTPUT_ALIGN_CODE(FILE) \
fprintf ((FILE), "\t.align 4\n");
#endif
/* Machines that use the AT&T assembler syntax
also return floating point values in an FP register. */
/* Define how to find the value returned by a function.
VALTYPE is the data type of the value (as a tree).
If the precise function being called is known, FUNC is its FUNCTION_DECL;
otherwise, FUNC is 0. */
#define VALUE_REGNO(MODE) \
(((MODE)==SFmode || (MODE)==DFmode) ? FIRST_FLOAT_REG : 0)
/* 1 if N is a possible register number for a function value. */
#define FUNCTION_VALUE_REGNO_P(N) ((N) == 0 || (N)== FIRST_FLOAT_REG)
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