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/* Definitions of target machine for GNU compiler. "embedded" 68XXX.
This is meant to be included after m68k.h.
Copyright (C) 1994, 1995, 1998, 1999, 2004, 2006
Free Software Foundation, Inc. */
/* Override the SVR4 ABI for this target. */
#define PTRDIFF_TYPE "long int"
#define SIZE_TYPE "long unsigned int"
/* In order for bitfields to work on a 68000, or with -mnobitfield, we must
define either PCC_BITFIELD_TYPE_MATTERS or STRUCTURE_SIZE_BOUNDARY.
Defining STRUCTURE_SIZE_BOUNDARY results in structure packing problems,
so we define PCC_BITFIELD_TYPE_MATTERS. */
#define PCC_BITFIELD_TYPE_MATTERS 1
/* Don't default to pcc-struct-return, so that we can return small structures
and unions in registers, which is slightly more efficient. */
#define DEFAULT_PCC_STRUCT_RETURN 0
#undef FUNCTION_VALUE
#define FUNCTION_VALUE(VALTYPE,FUNC) LIBCALL_VALUE (TYPE_MODE (VALTYPE))
#undef LIBCALL_VALUE
#define LIBCALL_VALUE(MODE) \
m68k_libcall_value (MODE)
#undef FUNCTION_VALUE_REGNO_P
#define FUNCTION_VALUE_REGNO_P(N) \
((N) == D0_REG || (TARGET_68881 && (N) == FP0_REG))
#undef NEEDS_UNTYPED_CALL
#define NEEDS_UNTYPED_CALL 1
/* Target OS builtins. */
#define TARGET_OS_CPP_BUILTINS() \
do \
{ \
builtin_define ("__embedded__"); \
} \
while (0)
/* Override the default LIB_SPEC from gcc.c. We don't currently support
profiling, or libg.a. */
#undef LIB_SPEC
#define LIB_SPEC "-lc"
/* Make this be null, since we want the crt0.o to come from the linker
script */
#undef STARTFILE_SPEC
#define STARTFILE_SPEC ""
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