/* Definitions of target machine for GNU compiler. ISI 68000/68020 version.
Intended only for use with GAS, and not ISI's assembler, which is buggy
- Copyright (C) 1988 Free Software Foundation, Inc.
+ Copyright (C) 1988, 1996, 1998, 1999 Free Software Foundation, Inc.
This file is part of GNU CC.
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. */
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
-#include "m68k.h"
-
-/* Without STRUCTURE_SIZE_BOUNDARY, we can't ensure that structures are
- aligned such that we can correctly extract bitfields from them.
- Someone should check whether the usual compiler on this machine
- provides the equivalent behavior of STRUCTURE_SIZE_BOUNDARY. */
-/* Alternative solutions are (1) define PCC_BITFIELD_TYPE_MATTERS,
- if that fits what the usual compiler does,
- or disable the -m68000 and -mnobitfield options. */
-#error This doesn't define STRUCTURE_SIZE_BOUNDARY
+#include "m68k/m68k.h"
/* See m68k.h. 7 means 68020 with 68881. */
-
#ifndef TARGET_DEFAULT
-#define TARGET_DEFAULT 7
+#define TARGET_DEFAULT (MASK_BITFIELD|MASK_68881|MASK_68020)
#endif
-#if TARGET_DEFAULT & 2
+#if TARGET_DEFAULT & MASK_68881
/* Define __HAVE_68881__ in preprocessor, unless -msoft-float is specified.
This will control the use of inline 68881 insns in certain macros. */
#define CPP_SPEC "%{!msoft-float:-D__HAVE_68881__}"
-/* If the 68881 is used, link must load libmc.a instead of libc.a */
+/* If the 68881 is used, link must load libmc.a before libc.a. */
-#define LIB_SPEC "%{g:-lg} %{msoft-float:%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}%{!msoft-float:%{!p:%{!pg:-lmc}}%{p:-lmc_p}%{pg:-lmc_p}} %{g:-lg}"
+#define LIB_SPEC "%{!msoft-float:%{!p:%{!pg:-lmc}}%{p:-lmc_p}%{pg:-lmc_p}} \
+%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p} %{g:-lg}"
#else
/* Define __HAVE_68881__ in preprocessor if -m68881 is specified.
/* If the 68881 is used, link must load libmc.a instead of libc.a */
-#define LIB_SPEC "%{g:-lg} %{!m68881:%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}%{m68881:%{!p:%{!pg:-lmc}}%{p:-lmc_p}%{pg:-lmc_p}}"
+#define LIB_SPEC "%{m68881:%{!p:%{!pg:-lmc}}%{p:-lmc_p}%{pg:-lmc_p}} \
+%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p} %{g:-lg}"
#endif
/* Names to predefine in the preprocessor for this target machine. */
-#define CPP_PREDEFINES "-Dunix -Dmc68000 -Dis68k"
+#define CPP_PREDEFINES "-Dunix -Dmc68000 -Dis68k -Asystem=unix -Asystem=bsd -Acpu=m68k -Amachine=m68k"
/* This is BSD, so it wants DBX format. */
#undef FUNCTION_VALUE
#undef LIBCALL_VALUE
#undef FUNCTION_VALUE_REGNO_P
+#undef NEEDS_UNTYPED_CALL
#undef ASM_FILE_START
+/* Every structure or union's size must be a multiple of 2 bytes. */
+
+#define STRUCTURE_SIZE_BOUNDARY 16
+
/* If TARGET_68881, return SF and DF values in f0 instead of d0. */
#define FUNCTION_VALUE(VALTYPE,FUNC) LIBCALL_VALUE (TYPE_MODE (VALTYPE))
#define LIBCALL_VALUE(MODE) \
- gen_rtx (REG, (MODE), ((TARGET_68881 && ((MODE) == SFmode || (MODE) == DFmode)) ? 16 : 0))
+ gen_rtx_REG ((MODE), ((TARGET_68881 && ((MODE) == SFmode || (MODE) == DFmode)) ? 16 : 0))
/* 1 if N is a possible register number for a function value.
D0 may be used, and F0 as well if -m68881 is specified. */
#define FUNCTION_VALUE_REGNO_P(N) \
((N) == 0 || (TARGET_68881 && (N) == 16))
+/* Define this to be true when FUNCTION_VALUE_REGNO_P is true for
+ more than one register. */
+
+#define NEEDS_UNTYPED_CALL 1
+
/* Also output something to cause the correct _doprnt to be loaded. */
#define ASM_FILE_START(FILE) fprintf (FILE, "#NO_APP\n%s\n", TARGET_68881 ? ".globl fltused" : "")
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