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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
-