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