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/* Definitions of target machine for GNU compiler, for AMD Am29000 CPU, Unix.
Copyright (C) 1991, 1993 Free Software Foundation, Inc.
Contributed by Richard Kenner (kenner@nyu.edu)
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. */
/* This is mostly the same as a29k.h, except that we define unix instead of
EPI and define unix-style machine names. */
#include "a29k/a29k.h"
/* Set our default target to be the 29050; that is the more interesting chip
for Unix systems. */
#undef TARGET_DEFAULT
#define TARGET_DEFAULT (1+2+16+128)
#undef CPP_PREDEFINES
#define CPP_PREDEFINES "-Dam29k -Da29k -Dam29000 -Asystem(unix) -Acpu(a29k) -Amachine(a29k)"
#undef CPP_SPEC
#define CPP_SPEC "%{!m29000:-Dam29050 -D__am29050__}"
/* Use a default linker configuration file. */
#undef LINK_SPEC
#define LINK_SPEC "-T default.gld%s"
/* Define the magic numbers that we recognize as COFF. */
#define MY_ISCOFF(magic) ((magic) == SIPFBOMAGIC || (magic) == SIPRBOMAGIC)
/* For some systems, it is best if double-word objects are aligned on a
doubleword boundary. We want to maintain compatibility with MetaWare in
a29k.h, but do not feel constrained to do so here. */
#undef BIGGEST_ALIGNMENT
#define BIGGEST_ALIGNMENT 64
/* Add shared data as a kludge for now. */
#undef ASM_FILE_START
#define ASM_FILE_START(FILE) \
{ char *p, *after_dir = main_input_filename; \
if (TARGET_29050) \
fprintf (FILE, "\t.cputype 29050\n"); \
for (p = main_input_filename; *p; p++) \
if (*p == '/') \
after_dir = p + 1; \
fprintf (FILE, "\t.file "); \
output_quoted_string (FILE, after_dir); \
fprintf (FILE, "\n"); \
if (flag_shared_data) \
fprintf (FILE, "\t.sect .shdata,data\n"); \
fprintf (FILE, "\t.sect .lit,lit\n"); }
/* Output before shared data. */
#define SHARED_SECTION_ASM_OP "\t.use .shdata"
/* If we want shared data, we have to turn off commons. */
#define OVERRIDE_OPTIONS if (flag_shared_data) flag_no_common = 1;
#if 0 /* This would be needed except that the 29k doesn't have strict
alignment requirements. */
#define FUNCTION_ARG_BOUNDARY(MODE, TYPE) \
(((TYPE) != 0) \
? ((TYPE_ALIGN(TYPE) <= PARM_BOUNDARY) \
? PARM_BOUNDARY \
: TYPE_ALIGN(TYPE)) \
: ((GET_MODE_ALIGNMENT(MODE) <= PARM_BOUNDARY) \
? PARM_BOUNDARY \
: GET_MODE_ALIGNMENT(MODE)))
#endif
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