/* 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, 2007, 2008
Free Software Foundation, Inc.
Contributed by Ron Guilmette (rfg@monkeys.com)
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 2, or (at your option) any later
+Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
for more details.
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. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
#ifndef GCC_DEFAULTS_H
#define GCC_DEFAULTS_H
#define GET_ENVIRONMENT(VALUE, NAME) do { (VALUE) = getenv (NAME); } while (0)
#endif
-#define obstack_chunk_alloc xmalloc
-#define obstack_chunk_free free
+#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)
-/* 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
-#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
-
-/* 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)); \
- 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
+#if defined (HAVE_AS_TLS) && !defined (ASM_OUTPUT_TLS_COMMON)
+#define ASM_OUTPUT_TLS_COMMON(FILE, DECL, NAME, SIZE) \
+ do \
+ { \
+ fprintf ((FILE), "\t.tls_common\t"); \
+ assemble_name ((FILE), (NAME)); \
+ fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", \
+ (SIZE), DECL_ALIGN (DECL) / BITS_PER_UNIT); \
+ } \
+ while (0)
+#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. */
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
+/* This is how we tell the assembler that a symbol is a weak alias to
+ another symbol that doesn't require the other symbol to be defined.
+ Uses of the former will turn into weak uses of the latter, i.e.,
+ uses that, in case the latter is undefined, will not cause errors,
+ and will add it to the symbol table as weak undefined. However, if
+ the latter is referenced directly, a strong reference prevails. */
+#ifndef ASM_OUTPUT_WEAKREF
+#if defined HAVE_GAS_WEAKREF
+#define ASM_OUTPUT_WEAKREF(FILE, DECL, NAME, VALUE) \
+ do \
+ { \
+ fprintf ((FILE), "\t.weakref\t"); \
+ assemble_name ((FILE), (NAME)); \
+ fprintf ((FILE), ","); \
+ assemble_name ((FILE), (VALUE)); \
+ fprintf ((FILE), "\n"); \
+ } \
+ while (0)
+#endif
+#endif
+
/* How to emit a .type directive. */
#ifndef ASM_OUTPUT_TYPE_DIRECTIVE
#if defined TYPE_ASM_OP && defined TYPE_OPERAND_FMT
HOST_WIDE_INT size_ = (SIZE); \
fputs (SIZE_ASM_OP, STREAM); \
assemble_name (STREAM, NAME); \
- fputs (", ", STREAM); \
- fprintf (STREAM, HOST_WIDE_INT_PRINT_DEC, size_); \
- putc ('\n', STREAM); \
+ fprintf (STREAM, ", " HOST_WIDE_INT_PRINT_DEC "\n", size_); \
} \
while (0)
#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
/* If we have a definition of INCOMING_RETURN_ADDR_RTX, assume that
the rest of the DWARF 2 frame unwind support is also provided. */
-#if !defined (DWARF2_UNWIND_INFO) && defined (INCOMING_RETURN_ADDR_RTX)
+#if !defined (DWARF2_UNWIND_INFO) && defined (INCOMING_RETURN_ADDR_RTX) \
+ && !defined (TARGET_UNWIND_INFO)
#define DWARF2_UNWIND_INFO 1
#endif
#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 LONG_DOUBLE_TYPE_SIZE (BITS_PER_WORD * 2)
#endif
+#ifndef DECIMAL32_TYPE_SIZE
+#define DECIMAL32_TYPE_SIZE 32
+#endif
+
+#ifndef DECIMAL64_TYPE_SIZE
+#define DECIMAL64_TYPE_SIZE 64
+#endif
+
+#ifndef DECIMAL128_TYPE_SIZE
+#define DECIMAL128_TYPE_SIZE 128
+#endif
+
+#ifndef SHORT_FRACT_TYPE_SIZE
+#define SHORT_FRACT_TYPE_SIZE BITS_PER_UNIT
+#endif
+
+#ifndef FRACT_TYPE_SIZE
+#define FRACT_TYPE_SIZE (BITS_PER_UNIT * 2)
+#endif
+
+#ifndef LONG_FRACT_TYPE_SIZE
+#define LONG_FRACT_TYPE_SIZE (BITS_PER_UNIT * 4)
+#endif
+
+#ifndef LONG_LONG_FRACT_TYPE_SIZE
+#define LONG_LONG_FRACT_TYPE_SIZE (BITS_PER_UNIT * 8)
+#endif
+
+#ifndef SHORT_ACCUM_TYPE_SIZE
+#define SHORT_ACCUM_TYPE_SIZE (SHORT_FRACT_TYPE_SIZE * 2)
+#endif
+
+#ifndef ACCUM_TYPE_SIZE
+#define ACCUM_TYPE_SIZE (FRACT_TYPE_SIZE * 2)
+#endif
+
+#ifndef LONG_ACCUM_TYPE_SIZE
+#define LONG_ACCUM_TYPE_SIZE (LONG_FRACT_TYPE_SIZE * 2)
+#endif
+
+#ifndef LONG_LONG_ACCUM_TYPE_SIZE
+#define LONG_LONG_ACCUM_TYPE_SIZE (LONG_LONG_FRACT_TYPE_SIZE * 2)
+#endif
+
/* Width in bits of a pointer. Mind the value of the macro `Pmode'. */
#ifndef POINTER_SIZE
#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 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
#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
#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
-/* Determine the register class for registers suitable to be the base
- address register in a MEM. Allow the choice to be dependent upon
- the mode of the memory access. */
-#ifndef MODE_BASE_REG_CLASS
-#define MODE_BASE_REG_CLASS(MODE) BASE_REG_CLASS
-#endif
-
#ifndef LARGEST_EXPONENT_IS_NORMAL
#define LARGEST_EXPONENT_IS_NORMAL(SIZE) 0
#endif
&& !ROUND_TOWARDS_ZERO)
#endif
-/* If FLOAT_WORDS_BIG_ENDIAN and HOST_FLOAT_WORDS_BIG_ENDIAN are not defined
- in the header files, then this implies the word-endianness is the same as
- for integers. */
+#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
#define TARGET_FLT_EVAL_METHOD 0
#endif
+#ifndef TARGET_DEC_EVAL_METHOD
+#define TARGET_DEC_EVAL_METHOD 2
+#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 VECTOR_MODE_SUPPORTED_P
-#define VECTOR_MODE_SUPPORTED_P(MODE) 0
+#ifndef HAS_LONG_COND_BRANCH
+#define HAS_LONG_COND_BRANCH 0
+#endif
+
+#ifndef HAS_LONG_UNCOND_BRANCH
+#define HAS_LONG_UNCOND_BRANCH 0
+#endif
+
+/* 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
#define DEFAULT_USE_CXA_ATEXIT 0
#endif
+/* If none of these macros are defined, the port must use the new
+ technique of defining constraints in the machine description.
+ tm_p.h will define those macros that machine-independent code
+ still uses. */
+#if !defined CONSTRAINT_LEN \
+ && !defined REG_CLASS_FROM_LETTER \
+ && !defined REG_CLASS_FROM_CONSTRAINT \
+ && !defined CONST_OK_FOR_LETTER_P \
+ && !defined CONST_OK_FOR_CONSTRAINT_P \
+ && !defined CONST_DOUBLE_OK_FOR_LETTER_P \
+ && !defined CONST_DOUBLE_OK_FOR_CONSTRAINT_P \
+ && !defined EXTRA_CONSTRAINT \
+ && !defined EXTRA_CONSTRAINT_STR \
+ && !defined EXTRA_MEMORY_CONSTRAINT \
+ && !defined EXTRA_ADDRESS_CONSTRAINT
+
+#define USE_MD_CONSTRAINTS
+
+#if GCC_VERSION >= 3000 && defined IN_GCC
+/* These old constraint macros shouldn't appear anywhere in a
+ configuration using MD constraint definitions. */
+#pragma GCC poison REG_CLASS_FROM_LETTER CONST_OK_FOR_LETTER_P \
+ CONST_DOUBLE_OK_FOR_LETTER_P EXTRA_CONSTRAINT
+#endif
+
+#else /* old constraint mechanism in use */
+
/* Determine whether extra constraint letter should be handled
via address reload (like 'o'). */
#ifndef EXTRA_MEMORY_CONSTRAINT
-#define EXTRA_MEMORY_CONSTRAINT(C) 0
+#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) 0
+#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
+
+#endif /* old constraint mechanism in use */
+
+#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
+
+/* Determine whether the target runtime library has
+ a sincos implementation following the GNU extension. */
+#ifndef TARGET_HAS_SINCOS
+#define TARGET_HAS_SINCOS 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
+
+#ifndef FRAME_GROWS_DOWNWARD
+#define FRAME_GROWS_DOWNWARD 0
+#endif
+
+/* On most machines, the CFA coincides with the first incoming parm. */
+#ifndef ARG_POINTER_CFA_OFFSET
+#define ARG_POINTER_CFA_OFFSET(FNDECL) FIRST_PARM_OFFSET (FNDECL)
+#endif
+
+/* On most machines, we use the CFA as DW_AT_frame_base. */
+#ifndef CFA_FRAME_BASE_OFFSET
+#define CFA_FRAME_BASE_OFFSET(FNDECL) 0
+#endif
+
+/* The offset from the incoming value of %sp to the top of the stack frame
+ for the current function. */
+#ifndef INCOMING_FRAME_SP_OFFSET
+#define INCOMING_FRAME_SP_OFFSET 0
+#endif
+
+#ifndef HARD_REGNO_NREGS_HAS_PADDING
+#define HARD_REGNO_NREGS_HAS_PADDING(REGNO, MODE) 0
+#define HARD_REGNO_NREGS_WITH_PADDING(REGNO, MODE) -1
+#endif
+
+#ifndef OUTGOING_REG_PARM_STACK_SPACE
+#define OUTGOING_REG_PARM_STACK_SPACE 0
#endif
#endif /* ! GCC_DEFAULTS_H */
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