/* Definitions of various defaults for tm.h macros.
- Copyright (C) 1992, 1996, 1997, 1998, 1999, 2000, 2001, 2002
+ Copyright (C) 1992, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+ 2005
Free Software Foundation, Inc.
Contributed by Ron Guilmette (rfg@monkeys.com)
#ifndef GCC_DEFAULTS_H
#define GCC_DEFAULTS_H
-/* Define default standard character escape sequences. */
-#ifndef TARGET_BELL
-# define TARGET_BELL 007
-# define TARGET_BS 010
-# define TARGET_TAB 011
-# define TARGET_NEWLINE 012
-# define TARGET_VT 013
-# define TARGET_FF 014
-# define TARGET_CR 015
-# define TARGET_ESC 033
+#ifndef GET_ENVIRONMENT
+#define GET_ENVIRONMENT(VALUE, NAME) do { (VALUE) = getenv (NAME); } while (0)
#endif
-/* When removal of CPP_PREDEFINES is complete, TARGET_CPU_CPP_BULITINS
- can also be removed from here. */
-#ifndef TARGET_OS_CPP_BUILTINS
-# define TARGET_OS_CPP_BUILTINS()
-#endif
-#ifndef TARGET_CPU_CPP_BUILTINS
-# define TARGET_CPU_CPP_BUILTINS()
-#endif
-#ifndef CPP_PREDEFINES
-# define CPP_PREDEFINES ""
-#endif
+#define obstack_chunk_alloc ((void *(*) (long)) xmalloc)
+#define obstack_chunk_free ((void (*) (void *)) free)
+#define OBSTACK_CHUNK_SIZE 0
+#define gcc_obstack_init(OBSTACK) \
+ _obstack_begin ((OBSTACK), OBSTACK_CHUNK_SIZE, 0, \
+ obstack_chunk_alloc, \
+ obstack_chunk_free)
-/* Store in OUTPUT a string (made with alloca) containing
- an assembler-name for a local static variable or function named NAME.
+/* Store in OUTPUT a string (made with alloca) containing an
+ assembler-name for a local static variable or function named NAME.
LABELNO is an integer which is different for each call. */
+#ifndef ASM_PN_FORMAT
+# ifndef NO_DOT_IN_LABEL
+# define ASM_PN_FORMAT "%s.%lu"
+# else
+# ifndef NO_DOLLAR_IN_LABEL
+# define ASM_PN_FORMAT "%s$%lu"
+# else
+# define ASM_PN_FORMAT "__%s_%lu"
+# endif
+# endif
+#endif /* ! ASM_PN_FORMAT */
+
#ifndef ASM_FORMAT_PRIVATE_NAME
-#define ASM_FORMAT_PRIVATE_NAME(OUTPUT, NAME, LABELNO) \
- do { \
- int len = strlen (NAME); \
- char *temp = (char *) alloca (len + 3); \
- temp[0] = 'L'; \
- strcpy (&temp[1], (NAME)); \
- temp[len + 1] = '.'; \
- temp[len + 2] = 0; \
- (OUTPUT) = (char *) alloca (strlen (NAME) + 11); \
- ASM_GENERATE_INTERNAL_LABEL (OUTPUT, temp, LABELNO); \
+# define ASM_FORMAT_PRIVATE_NAME(OUTPUT, NAME, LABELNO) \
+ do { const char *const name_ = (NAME); \
+ char *const output_ = (OUTPUT) = \
+ (char *) alloca (strlen (name_) + 32); \
+ sprintf (output_, ASM_PN_FORMAT, name_, (unsigned long)(LABELNO)); \
} while (0)
#endif
-#ifndef ASM_STABD_OP
-#define ASM_STABD_OP "\t.stabd\t"
-#endif
-
/* This is how to output an element of a case-vector that is absolute.
Some targets don't use this, but we have to define it anyway. */
#ifndef ASM_OUTPUT_ADDR_VEC_ELT
#define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \
-do { fputs (integer_asm_op (POINTER_SIZE / UNITS_PER_WORD, TRUE), FILE); \
- ASM_OUTPUT_INTERNAL_LABEL (FILE, "L", (VALUE)); \
+do { fputs (integer_asm_op (POINTER_SIZE / BITS_PER_UNIT, TRUE), FILE); \
+ (*targetm.asm_out.internal_label) (FILE, "L", (VALUE)); \
fputc ('\n', FILE); \
} while (0)
#endif
-/* choose a reasonable default for ASM_OUTPUT_ASCII. */
+/* Choose a reasonable default for ASM_OUTPUT_ASCII. */
#ifndef ASM_OUTPUT_ASCII
#define ASM_OUTPUT_ASCII(MYFILE, MYSTRING, MYLENGTH) \
#endif
#endif
+/* Decide whether to defer emitting the assembler output for an equate
+ of two values. The default is to not defer output. */
+#ifndef TARGET_DEFERRED_OUTPUT_DEFS
+#define TARGET_DEFERRED_OUTPUT_DEFS(DECL,TARGET) false
+#endif
+
+/* This is how to output the definition of a user-level label named
+ NAME, such as the label on a static function or variable NAME. */
+
+#ifndef ASM_OUTPUT_LABEL
+#define ASM_OUTPUT_LABEL(FILE,NAME) \
+ do { assemble_name ((FILE), (NAME)); fputs (":\n", (FILE)); } while (0)
+#endif
+
+/* Output the definition of a compiler-generated label named NAME. */
+#ifndef ASM_OUTPUT_INTERNAL_LABEL
+#define ASM_OUTPUT_INTERNAL_LABEL(FILE,NAME) \
+ do { \
+ assemble_name_raw ((FILE), (NAME)); \
+ fputs (":\n", (FILE)); \
+ } while (0)
+#endif
+
/* This is how to output a reference to a user-level label named NAME. */
#ifndef ASM_OUTPUT_LABELREF
#ifndef ASM_OUTPUT_DEBUG_LABEL
#define ASM_OUTPUT_DEBUG_LABEL(FILE, PREFIX, NUM) \
- ASM_OUTPUT_INTERNAL_LABEL (FILE, PREFIX, NUM)
+ (*targetm.asm_out.internal_label) (FILE, PREFIX, NUM)
#endif
/* This is how we tell the assembler that a symbol is weak. */
#endif
#endif
+/* How to emit a .type directive. */
+#ifndef ASM_OUTPUT_TYPE_DIRECTIVE
+#if defined TYPE_ASM_OP && defined TYPE_OPERAND_FMT
+#define ASM_OUTPUT_TYPE_DIRECTIVE(STREAM, NAME, TYPE) \
+ do \
+ { \
+ fputs (TYPE_ASM_OP, STREAM); \
+ assemble_name (STREAM, NAME); \
+ fputs (", ", STREAM); \
+ fprintf (STREAM, TYPE_OPERAND_FMT, TYPE); \
+ putc ('\n', STREAM); \
+ } \
+ while (0)
+#endif
+#endif
+
+/* How to emit a .size directive. */
+#ifndef ASM_OUTPUT_SIZE_DIRECTIVE
+#ifdef SIZE_ASM_OP
+#define ASM_OUTPUT_SIZE_DIRECTIVE(STREAM, NAME, SIZE) \
+ do \
+ { \
+ HOST_WIDE_INT size_ = (SIZE); \
+ fputs (SIZE_ASM_OP, STREAM); \
+ assemble_name (STREAM, NAME); \
+ fprintf (STREAM, ", " HOST_WIDE_INT_PRINT_DEC "\n", size_); \
+ } \
+ while (0)
+
+#define ASM_OUTPUT_MEASURED_SIZE(STREAM, NAME) \
+ do \
+ { \
+ fputs (SIZE_ASM_OP, STREAM); \
+ assemble_name (STREAM, NAME); \
+ fputs (", .-", STREAM); \
+ assemble_name (STREAM, NAME); \
+ putc ('\n', STREAM); \
+ } \
+ while (0)
+
+#endif
+#endif
+
/* This determines whether or not we support weak symbols. */
#ifndef SUPPORTS_WEAK
#if defined (ASM_WEAKEN_LABEL) || defined (ASM_WEAKEN_DECL)
#endif
#endif
+/* This determines whether weak symbols must be left out of a static
+ archive's table of contents. Defining this macro to be nonzero has
+ the consequence that certain symbols will not be made weak that
+ otherwise would be. The C++ ABI requires this macro to be zero;
+ see the documentation. */
+#ifndef TARGET_WEAK_NOT_IN_ARCHIVE_TOC
+#define TARGET_WEAK_NOT_IN_ARCHIVE_TOC 0
+#endif
+
+/* This determines whether or not we need linkonce unwind information. */
+#ifndef TARGET_USES_WEAK_UNWIND_INFO
+#define TARGET_USES_WEAK_UNWIND_INFO 0
+#endif
+
+/* By default, there is no prefix on user-defined symbols. */
+#ifndef USER_LABEL_PREFIX
+#define USER_LABEL_PREFIX ""
+#endif
+
/* If the target supports weak symbols, define TARGET_ATTRIBUTE_WEAK to
- provide a weak attribute. Else define it to nothing.
+ provide a weak attribute. Else define it to nothing.
This would normally belong in ansidecl.h, but SUPPORTS_WEAK is
not available at that time.
# endif
#endif
+/* Determines whether we may use common symbols to represent one-only
+ semantics (a.k.a. "vague linkage"). */
+#ifndef USE_COMMON_FOR_ONE_ONLY
+# define USE_COMMON_FOR_ONE_ONLY 1
+#endif
+
+/* By default we can assume that all global symbols are in one namespace,
+ across all shared libraries. */
+#ifndef MULTIPLE_SYMBOL_SPACES
+# define MULTIPLE_SYMBOL_SPACES 0
+#endif
+
/* If the target supports init_priority C++ attribute, give
SUPPORTS_INIT_PRIORITY a nonzero value. */
#ifndef SUPPORTS_INIT_PRIORITY
#endif
#endif
+/* On many systems, different EH table encodings are used under
+ difference circumstances. Some will require runtime relocations;
+ some will not. For those that do not require runtime relocations,
+ we would like to make the table read-only. However, since the
+ read-only tables may need to be combined with read-write tables
+ that do require runtime relocation, it is not safe to make the
+ tables read-only unless the linker will merge read-only and
+ read-write sections into a single read-write section. If your
+ linker does not have this ability, but your system is such that no
+ encoding used with non-PIC code will ever require a runtime
+ relocation, then you can define EH_TABLES_CAN_BE_READ_ONLY to 1 in
+ your target configuration file. */
+#ifndef EH_TABLES_CAN_BE_READ_ONLY
+#ifdef HAVE_LD_RO_RW_SECTION_MIXING
+#define EH_TABLES_CAN_BE_READ_ONLY 1
+#else
+#define EH_TABLES_CAN_BE_READ_ONLY 0
+#endif
+#endif
+
/* If we have named section and we support weak symbols, then use the
.jcr section for recording java classes which need to be registered
at program start-up time. */
#endif
#endif
-/* By default, we generate a label at the beginning and end of the
- text section, and compute the size of the text section by
- subtracting the two. However, on some platforms that doesn't
- work, and we use the section itself, rather than a label at the
- beginning of it, to indicate the start of the section. On such
- platforms, define this to zero. */
-#ifndef DWARF2_GENERATE_TEXT_SECTION_LABEL
-#define DWARF2_GENERATE_TEXT_SECTION_LABEL 1
+/* This decision to use a .jcr section can be overridden by defining
+ USE_JCR_SECTION to 0 in target file. This is necessary if target
+ can define JCR_SECTION_NAME but does not have crtstuff or
+ linker support for .jcr section. */
+#ifndef TARGET_USE_JCR_SECTION
+#ifdef JCR_SECTION_NAME
+#define TARGET_USE_JCR_SECTION 1
+#else
+#define TARGET_USE_JCR_SECTION 0
#endif
-
-/* Supply a default definition for PROMOTE_PROTOTYPES. */
-#ifndef PROMOTE_PROTOTYPES
-#define PROMOTE_PROTOTYPES 0
#endif
/* Number of hardware registers that go into the DWARF-2 unwind info.
#define POINTER_SIZE BITS_PER_WORD
#endif
-#ifndef BUILD_VA_LIST_TYPE
-#define BUILD_VA_LIST_TYPE(X) ((X) = ptr_type_node)
-#endif
-
#ifndef PIC_OFFSET_TABLE_REGNUM
#define PIC_OFFSET_TABLE_REGNUM INVALID_REGNUM
#endif
-/* Type used by GCOV counters. Use 64bit data type if target supports
- it. */
-#if LONG_TYPE_SIZE >= 64
-#define GCOV_TYPE_SIZE LONG_TYPE_SIZE
-#else
-#define GCOV_TYPE_SIZE LONG_LONG_TYPE_SIZE
+#ifndef TARGET_DLLIMPORT_DECL_ATTRIBUTES
+#define TARGET_DLLIMPORT_DECL_ATTRIBUTES 0
#endif
+#ifndef TARGET_DECLSPEC
+#if TARGET_DLLIMPORT_DECL_ATTRIBUTES
+/* If the target supports the "dllimport" attribute, users are
+ probably used to the "__declspec" syntax. */
+#define TARGET_DECLSPEC 1
+#else
+#define TARGET_DECLSPEC 0
+#endif
+#endif
/* By default, the preprocessor should be invoked the same way in C++
as in C. */
#endif
#endif
+/* Decide whether a function's arguments should be processed
+ from first to last or from last to first.
+
+ They should if the stack and args grow in opposite directions, but
+ only if we have push insns. */
+
+#ifdef PUSH_ROUNDING
+
+#ifndef PUSH_ARGS_REVERSED
+#if defined (STACK_GROWS_DOWNWARD) != defined (ARGS_GROW_DOWNWARD)
+#define PUSH_ARGS_REVERSED PUSH_ARGS
+#endif
+#endif
+
+#endif
+
+#ifndef PUSH_ARGS_REVERSED
+#define PUSH_ARGS_REVERSED 0
+#endif
+
/* If PREFERRED_STACK_BOUNDARY is not defined, set it to STACK_BOUNDARY.
STACK_BOUNDARY is required. */
#ifndef PREFERRED_STACK_BOUNDARY
#define PREFERRED_STACK_BOUNDARY STACK_BOUNDARY
#endif
+#ifndef TARGET_DEFAULT_PACK_STRUCT
+#define TARGET_DEFAULT_PACK_STRUCT 0
+#endif
+
/* By default, the C++ compiler will use function addresses in the
- vtable entries. Setting this non-zero tells the compiler to use
+ vtable entries. Setting this nonzero tells the compiler to use
function descriptors instead. The value of this macro says how
- many words wide the descriptor is (normally 2). It is assumed
+ many words wide the descriptor is (normally 2). It is assumed
that the address of a function descriptor may be treated as a
pointer to a function. */
#ifndef TARGET_VTABLE_USES_DESCRIPTORS
/* By default, the vtable entries are void pointers, the so the alignment
is the same as pointer alignment. The value of this macro specifies
the alignment of the vtable entry in bits. It should be defined only
- when special alignment is necessary. */
+ when special alignment is necessary. */
#ifndef TARGET_VTABLE_ENTRY_ALIGN
#define TARGET_VTABLE_ENTRY_ALIGN POINTER_SIZE
#endif
#define TARGET_VTABLE_DATA_ENTRY_DISTANCE 1
#endif
+/* Decide whether it is safe to use a local alias for a virtual function
+ when constructing thunks. */
+#ifndef TARGET_USE_LOCAL_THUNK_ALIAS_P
+#ifdef ASM_OUTPUT_DEF
+#define TARGET_USE_LOCAL_THUNK_ALIAS_P(DECL) 1
+#else
+#define TARGET_USE_LOCAL_THUNK_ALIAS_P(DECL) 0
+#endif
+#endif
+
/* Select a format to encode pointers in exception handling data. We
prefer those that result in fewer dynamic relocations. Assume no
special support here and encode direct references. */
#endif
/* If more than one debugging type is supported, you must define
- PREFERRED_DEBUGGING_TYPE to choose a format in a system-dependent way.
+ PREFERRED_DEBUGGING_TYPE to choose the default. */
- This is one long line cause VAXC can't handle a \-newline. */
-#if 1 < (defined (DBX_DEBUGGING_INFO) + defined (SDB_DEBUGGING_INFO) + defined (DWARF_DEBUGGING_INFO) + defined (DWARF2_DEBUGGING_INFO) + defined (XCOFF_DEBUGGING_INFO) + defined (VMS_DEBUGGING_INFO))
+#if 1 < (defined (DBX_DEBUGGING_INFO) + defined (SDB_DEBUGGING_INFO) \
+ + defined (DWARF2_DEBUGGING_INFO) + defined (XCOFF_DEBUGGING_INFO) \
+ + defined (VMS_DEBUGGING_INFO))
#ifndef PREFERRED_DEBUGGING_TYPE
-You Lose! You must define PREFERRED_DEBUGGING_TYPE!
+#error You must define PREFERRED_DEBUGGING_TYPE
#endif /* no PREFERRED_DEBUGGING_TYPE */
-#else /* Only one debugging format supported. Define PREFERRED_DEBUGGING_TYPE
- so other code needn't care. */
-#ifdef DBX_DEBUGGING_INFO
+
+/* If only one debugging format is supported, define PREFERRED_DEBUGGING_TYPE
+ here so other code needn't care. */
+#elif defined DBX_DEBUGGING_INFO
#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
-#endif
-#ifdef SDB_DEBUGGING_INFO
+
+#elif defined SDB_DEBUGGING_INFO
#define PREFERRED_DEBUGGING_TYPE SDB_DEBUG
-#endif
-#ifdef DWARF_DEBUGGING_INFO
-#define PREFERRED_DEBUGGING_TYPE DWARF_DEBUG
-#endif
-#ifdef DWARF2_DEBUGGING_INFO
+
+#elif defined DWARF2_DEBUGGING_INFO
#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
-#endif
-#ifdef VMS_DEBUGGING_INFO
+
+#elif defined VMS_DEBUGGING_INFO
#define PREFERRED_DEBUGGING_TYPE VMS_AND_DWARF2_DEBUG
-#endif
-#ifdef XCOFF_DEBUGGING_INFO
+
+#elif defined XCOFF_DEBUGGING_INFO
#define PREFERRED_DEBUGGING_TYPE XCOFF_DEBUG
-#endif
-#endif /* More than one debugger format enabled. */
-/* If still not defined, must have been because no debugging formats
- are supported. */
-#ifndef PREFERRED_DEBUGGING_TYPE
+#else
+/* No debugging format is supported by this target. */
#define PREFERRED_DEBUGGING_TYPE NO_DEBUG
#endif
-/* This is set to 1 if BYTES_BIG_ENDIAN is defined but the target uses a
- little-endian method of passing and returning structures in registers.
- On the HP-UX IA64 and PA64 platforms structures are aligned differently
- then integral values and setting this value to 1 will allow for the
- special handling of structure arguments and return values in regs. */
+/* Define codes for all the float formats that we know of. */
+#define UNKNOWN_FLOAT_FORMAT 0
+#define IEEE_FLOAT_FORMAT 1
+#define VAX_FLOAT_FORMAT 2
+#define IBM_FLOAT_FORMAT 3
+#define C4X_FLOAT_FORMAT 4
+
+/* Default to IEEE float if not specified. Nearly all machines use it. */
+#ifndef TARGET_FLOAT_FORMAT
+#define TARGET_FLOAT_FORMAT IEEE_FLOAT_FORMAT
+#endif
+
+/* Some macros can be defined by the backend in either a mode-dependent
+ or mode-independent form. The compiler proper should only use the
+ mode-dependent form, providing VOIDmode when the mode is unknown.
+ We can't poison the macros because the backend may reference them. */
+
+#ifndef REGNO_MODE_OK_FOR_BASE_P
+#define REGNO_MODE_OK_FOR_BASE_P(REGNO, MODE) REGNO_OK_FOR_BASE_P (REGNO)
+#endif
-#ifndef FUNCTION_ARG_REG_LITTLE_ENDIAN
-#define FUNCTION_ARG_REG_LITTLE_ENDIAN 0
+#ifndef REG_MODE_OK_FOR_BASE_P
+#define REG_MODE_OK_FOR_BASE_P(REG, MODE) REG_OK_FOR_BASE_P (REG)
#endif
/* Determine the register class for registers suitable to be the base
#define MODE_BASE_REG_CLASS(MODE) BASE_REG_CLASS
#endif
+/* Some machines require a different base register class if the index
+ is a register. By default, assume that a base register is acceptable. */
+#ifndef MODE_BASE_REG_REG_CLASS
+#define MODE_BASE_REG_REG_CLASS(MODE) MODE_BASE_REG_CLASS(MODE)
+#endif
+
+#ifndef REGNO_MODE_OK_FOR_REG_BASE_P
+#define REGNO_MODE_OK_FOR_REG_BASE_P(REGNO, MODE) REGNO_MODE_OK_FOR_BASE_P (REGNO, MODE)
+#endif
+
+#ifndef REG_MODE_OK_FOR_REG_BASE_P
+#define REG_MODE_OK_FOR_REG_BASE_P(REGNO, MODE) REG_MODE_OK_FOR_BASE_P (REGNO, MODE)
+#endif
+
#ifndef LARGEST_EXPONENT_IS_NORMAL
#define LARGEST_EXPONENT_IS_NORMAL(SIZE) 0
#endif
&& !ROUND_TOWARDS_ZERO)
#endif
+#ifndef FLOAT_LIB_COMPARE_RETURNS_BOOL
+#define FLOAT_LIB_COMPARE_RETURNS_BOOL(MODE, COMPARISON) false
+#endif
+
+/* True if the targets integer-comparison functions return { 0, 1, 2
+ } to indicate { <, ==, > }. False if { -1, 0, 1 } is used
+ instead. The libgcc routines are biased. */
+#ifndef TARGET_LIB_INT_CMP_BIASED
+#define TARGET_LIB_INT_CMP_BIASED (true)
+#endif
+
+/* If FLOAT_WORDS_BIG_ENDIAN is not defined in the header files,
+ then the word-endianness is the same as for integers. */
+#ifndef FLOAT_WORDS_BIG_ENDIAN
+#define FLOAT_WORDS_BIG_ENDIAN WORDS_BIG_ENDIAN
+#endif
+
+#ifndef TARGET_FLT_EVAL_METHOD
+#define TARGET_FLT_EVAL_METHOD 0
+#endif
+
#ifndef HOT_TEXT_SECTION_NAME
-#define HOT_TEXT_SECTION_NAME "text.hot"
+#define HOT_TEXT_SECTION_NAME ".text.hot"
#endif
#ifndef UNLIKELY_EXECUTED_TEXT_SECTION_NAME
-#define UNLIKELY_EXECUTED_TEXT_SECTION_NAME "text.unlikely"
+#define UNLIKELY_EXECUTED_TEXT_SECTION_NAME ".text.unlikely"
+#endif
+
+#ifndef HAS_LONG_COND_BRANCH
+#define HAS_LONG_COND_BRANCH 0
+#endif
+
+#ifndef HAS_LONG_UNCOND_BRANCH
+#define HAS_LONG_UNCOND_BRANCH 0
#endif
-#ifndef VECTOR_MODE_SUPPORTED_P
-#define VECTOR_MODE_SUPPORTED_P(MODE) 0
+/* By default, only attempt to parallelize bitwise operations, and
+ possibly adds/subtracts using bit-twiddling. */
+#ifndef UNITS_PER_SIMD_WORD
+#define UNITS_PER_SIMD_WORD UNITS_PER_WORD
#endif
/* Determine whether __cxa_atexit, rather than atexit, is used to
- register C++ destructors for local statics and global objects. */
+ register C++ destructors for local statics and global objects. */
#ifndef DEFAULT_USE_CXA_ATEXIT
#define DEFAULT_USE_CXA_ATEXIT 0
#endif
+/* Determine whether extra constraint letter should be handled
+ via address reload (like 'o'). */
+#ifndef EXTRA_MEMORY_CONSTRAINT
+#define EXTRA_MEMORY_CONSTRAINT(C,STR) 0
+#endif
+
+/* Determine whether extra constraint letter should be handled
+ as an address (like 'p'). */
+#ifndef EXTRA_ADDRESS_CONSTRAINT
+#define EXTRA_ADDRESS_CONSTRAINT(C,STR) 0
+#endif
+
+/* When a port defines CONSTRAINT_LEN, it should use DEFAULT_CONSTRAINT_LEN
+ for all the characters that it does not want to change, so things like the
+ 'length' of a digit in a matching constraint is an implementation detail,
+ and not part of the interface. */
+#define DEFAULT_CONSTRAINT_LEN(C,STR) 1
+
+#ifndef CONSTRAINT_LEN
+#define CONSTRAINT_LEN(C,STR) DEFAULT_CONSTRAINT_LEN (C, STR)
+#endif
+
+#if defined (CONST_OK_FOR_LETTER_P) && ! defined (CONST_OK_FOR_CONSTRAINT_P)
+#define CONST_OK_FOR_CONSTRAINT_P(VAL,C,STR) CONST_OK_FOR_LETTER_P (VAL, C)
+#endif
+
+#if defined (CONST_DOUBLE_OK_FOR_LETTER_P) && ! defined (CONST_DOUBLE_OK_FOR_CONSTRAINT_P)
+#define CONST_DOUBLE_OK_FOR_CONSTRAINT_P(OP,C,STR) \
+ CONST_DOUBLE_OK_FOR_LETTER_P (OP, C)
+#endif
+
+#ifndef REG_CLASS_FROM_CONSTRAINT
+#define REG_CLASS_FROM_CONSTRAINT(C,STR) REG_CLASS_FROM_LETTER (C)
+#endif
+
+#if defined (EXTRA_CONSTRAINT) && ! defined (EXTRA_CONSTRAINT_STR)
+#define EXTRA_CONSTRAINT_STR(OP, C,STR) EXTRA_CONSTRAINT (OP, C)
+#endif
+
+#ifndef REGISTER_MOVE_COST
+#define REGISTER_MOVE_COST(m, x, y) 2
+#endif
+
+/* Determine whether the entire c99 runtime
+ is present in the runtime library. */
+#ifndef TARGET_C99_FUNCTIONS
+#define TARGET_C99_FUNCTIONS 0
+#endif
+
+/* Indicate that CLZ and CTZ are undefined at zero. */
+#ifndef CLZ_DEFINED_VALUE_AT_ZERO
+#define CLZ_DEFINED_VALUE_AT_ZERO(MODE, VALUE) 0
+#endif
+#ifndef CTZ_DEFINED_VALUE_AT_ZERO
+#define CTZ_DEFINED_VALUE_AT_ZERO(MODE, VALUE) 0
+#endif
+
+/* Provide a default value for STORE_FLAG_VALUE. */
+#ifndef STORE_FLAG_VALUE
+#define STORE_FLAG_VALUE 1
+#endif
+
+/* This macro is used to determine what the largest unit size that
+ move_by_pieces can use is. */
+
+/* MOVE_MAX_PIECES is the number of bytes at a time which we can
+ move efficiently, as opposed to MOVE_MAX which is the maximum
+ number of bytes we can move with a single instruction. */
+
+#ifndef MOVE_MAX_PIECES
+#define MOVE_MAX_PIECES MOVE_MAX
+#endif
+
+#ifndef STACK_POINTER_OFFSET
+#define STACK_POINTER_OFFSET 0
+#endif
+
+#ifndef LOCAL_REGNO
+#define LOCAL_REGNO(REGNO) 0
+#endif
+
+/* EXIT_IGNORE_STACK should be nonzero if, when returning from a function,
+ the stack pointer does not matter. The value is tested only in
+ functions that have frame pointers. */
+#ifndef EXIT_IGNORE_STACK
+#define EXIT_IGNORE_STACK 0
+#endif
+
+/* Assume that case vectors are not pc-relative. */
+#ifndef CASE_VECTOR_PC_RELATIVE
+#define CASE_VECTOR_PC_RELATIVE 0
+#endif
+
+/* Assume that trampolines need function alignment. */
+#ifndef TRAMPOLINE_ALIGNMENT
+#define TRAMPOLINE_ALIGNMENT FUNCTION_BOUNDARY
+#endif
+
+/* Register mappings for target machines without register windows. */
+#ifndef INCOMING_REGNO
+#define INCOMING_REGNO(N) (N)
+#endif
+
+#ifndef OUTGOING_REGNO
+#define OUTGOING_REGNO(N) (N)
+#endif
+
+#ifndef SHIFT_COUNT_TRUNCATED
+#define SHIFT_COUNT_TRUNCATED 0
+#endif
+
+#ifndef LEGITIMIZE_ADDRESS
+#define LEGITIMIZE_ADDRESS(X, OLDX, MODE, WIN)
+#endif
+
+#ifndef LEGITIMATE_PIC_OPERAND_P
+#define LEGITIMATE_PIC_OPERAND_P(X) 1
+#endif
+
+#ifndef REVERSIBLE_CC_MODE
+#define REVERSIBLE_CC_MODE(MODE) 0
+#endif
+
+/* Biggest alignment supported by the object file format of this machine. */
+#ifndef MAX_OFILE_ALIGNMENT
+#define MAX_OFILE_ALIGNMENT BIGGEST_ALIGNMENT
+#endif
+
#endif /* ! GCC_DEFAULTS_H */
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