/* Definitions of target machine for GNU compiler, for AMD Am29000 CPU, Unix. Copyright (C) 1991, 1993, 1994, 1996 Free Software Foundation, Inc. Contributed by Richard Kenner (kenner@vlsi1.ultra.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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* We define unix instead of EPI and define unix-style machine names. */ /* 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) \ { const 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; /* Default to -fno-pcc-struct-return, since we don't have to worry about compatibility. */ #define DEFAULT_PCC_STRUCT_RETURN 0 #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