/* Definitions of target machine for GNU compiler,
for m68k (including m68010) NetBSD platforms using the
ELF object format.
- Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+ Copyright (C) 2002, 2003, 2004, 2006 Free Software Foundation, Inc.
Contributed by Wasabi Systems. Inc.
This file is derived from <m68k/m68kv4.h>, <m68k/m68kelf.h>,
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA. */
#define TARGET_OS_CPP_BUILTINS() \
do \
builtin_define ("__m68k__"); \
builtin_define ("__SVR4_ABI__"); \
builtin_define ("__motorola__"); \
+ if (TARGET_HARD_FLOAT) \
+ builtin_define ("__HAVE_FPU__"); \
} \
while (0)
-/* Default target comes from config.gcc */
-#undef TARGET_DEFAULT
-#define TARGET_DEFAULT TARGET_CPU_DEFAULT
-
-
/* Don't try using XFmode on the 68010. */
#undef LONG_DOUBLE_TYPE_SIZE
-#define LONG_DOUBLE_TYPE_SIZE \
- ((TARGET_68020 || TARGET_68040 || TARGET_68040_ONLY || \
- TARGET_68060) ? 96 : 64)
+#define LONG_DOUBLE_TYPE_SIZE (TARGET_68020 ? 80 : 64)
+#undef LIBGCC2_LONG_DOUBLE_TYPE_SIZE
#ifdef __mc68010__
#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64
#else
-#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 96
+#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 80
#endif
-#define EXTRA_SPECS \
- { "cpp_cpu_default_spec", CPP_CPU_DEFAULT_SPEC }, \
- { "cpp_cpu_spec", CPP_CPU_SPEC }, \
- { "cpp_fpu_spec", CPP_FPU_SPEC }, \
- { "asm_default_spec", ASM_DEFAULT_SPEC }, \
- { "netbsd_cpp_spec", NETBSD_CPP_SPEC }, \
+#undef SUBTARGET_EXTRA_SPECS
+#define SUBTARGET_EXTRA_SPECS \
{ "netbsd_entry_point", NETBSD_ENTRY_POINT },
-#define CPP_CPU_SPEC \
- "%{m68010:-D__mc68010__} \
- %{m68020:-D__mc68020__} \
- %{m68030:-D__mc68030__} \
- %{m68040:-D__mc68040__} \
- %(cpp_cpu_default_spec)"
-
-
#undef TARGET_VERSION
-#if TARGET_DEFAULT & MASK_68020
-#define TARGET_VERSION fprintf (stderr, " (NetBSD/m68k ELF)");
-#define CPP_CPU_DEFAULT_SPEC "%{!m680*:-D__mc68020__}"
-#define ASM_DEFAULT_SPEC "%{!m680*:-m68020}"
-#else
-#define TARGET_VERSION fprintf (stderr, " (NetBSD/68010 ELF)");
-#define CPP_CPU_DEFAULT_SPEC "%{!m680*:-D__mc68010__}"
-#define ASM_DEFAULT_SPEC "%{!m680*:-m68010}"
-#endif
-
-
-#if TARGET_DEFAULT & MASK_68881
-#define CPP_FPU_SPEC "%{!msoft-float:-D__HAVE_68881__ -D__HAVE_FPU__}"
-#else
-#define CPP_FPU_SPEC "%{m68881:-D__HAVE_68881__ -D__HAVE_FPU__}"
-#endif
+#define TARGET_VERSION \
+ fprintf (stderr, \
+ TARGET_68010 \
+ ? " (NetBSD/68010 ELF)" \
+ : " (NetBSD/m68k ELF)");
/* Provide a CPP_SPEC appropriate for NetBSD m68k targets. Currently we
whether or not use of the FPU is allowed. */
#undef CPP_SPEC
-#define CPP_SPEC \
- "%(netbsd_cpp_spec) %(cpp_cpu_spec) %(cpp_fpu_spec)"
+#define CPP_SPEC NETBSD_CPP_SPEC
-/* Provide an ASM_SPEC appropriate for NetBSD m68k ELF targets. We pass
- on some CPU options, as well as PIC code generation options. */
+/* Provide an ASM_SPEC appropriate for NetBSD m68k ELF targets. We need
+ to passn PIC code generation options. */
#undef ASM_SPEC
-#define ASM_SPEC \
- "%(asm_default_spec) \
- %{m68010} %{m68020} %{m68030} %{m68040} %{m68060} \
- %{fpic|fpie:-k} %{fPIC|fPIE:-k -K}"
+#define ASM_SPEC "%(asm_cpu_spec) %{fpic|fpie:-k} %{fPIC|fPIE:-k -K}"
#define AS_NEEDS_DASH_FOR_PIPED_INPUT
#define USER_LABEL_PREFIX ""
-/* The prefix for immediate operands. */
-
-#undef IMMEDIATE_PREFIX
-#define IMMEDIATE_PREFIX "#"
-
-
#undef ASM_COMMENT_START
#define ASM_COMMENT_START "|"
#undef STATIC_CHAIN_REGNUM
#define STATIC_CHAIN_REGNUM 9
+#undef M68K_STATIC_CHAIN_REG_NAME
+#define M68K_STATIC_CHAIN_REG_NAME REGISTER_PREFIX "a1"
/* Now to renumber registers for dbx and gdb.
#undef FUNCTION_VALUE
#define FUNCTION_VALUE(VALTYPE, FUNC) \
- (TREE_CODE (VALTYPE) == REAL_TYPE && TARGET_68881 \
- ? gen_rtx_REG (TYPE_MODE (VALTYPE), 16) \
- : (POINTER_TYPE_P (VALTYPE) \
- ? gen_rtx_REG (TYPE_MODE (VALTYPE), 8) \
- : gen_rtx_REG (TYPE_MODE (VALTYPE), 0)))
-
-
-/* For compatibility with the large body of existing code which does
- not always properly declare external functions returning pointer
- types, the m68k/SVR4 convention is to copy the value returned for
- pointer functions from a0 to d0 in the function epilogue, so that
- callers that have neglected to properly declare the callee can
- still find the correct return value. */
-
-extern int current_function_returns_pointer;
-#define FUNCTION_EXTRA_EPILOGUE(FILE, SIZE) \
-do \
- { \
- if (current_function_returns_pointer \
- && ! find_equiv_reg (0, get_last_insn (), 0, 0, 0, 8, Pmode)) \
- asm_fprintf (FILE, "\tmove.l %Ra0,%Rd0\n"); \
- } \
-while (0)
+ m68k_function_value (VALTYPE, FUNC)
/* Define how to find the value returned by a library function
#undef LIBCALL_VALUE
#define LIBCALL_VALUE(MODE) \
- ((((MODE) == SFmode || (MODE) == DFmode || (MODE) == XFmode) \
- && TARGET_68881) \
- ? gen_rtx_REG (MODE, 16) \
- : gen_rtx_REG (MODE, 0))
+ m68k_libcall_value (MODE)
/* Boundary (in *bits*) on which stack pointer should be aligned.
#define BIGGEST_ALIGNMENT 64
-/* For m68k SVR4, structures are returned using the reentrant
- technique. */
-
-#undef PCC_STATIC_STRUCT_RETURN
-
-
/* The svr4 ABI for the m68k says that records and unions are returned
in memory. */
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