/* Definitions of various defaults for tm.h macros.
- Copyright (C) 1992, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
+ Copyright (C) 1992, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+ 2005
Free Software Foundation, Inc.
Contributed by Ron Guilmette (rfg@monkeys.com)
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. */
+Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301, USA. */
#ifndef GCC_DEFAULTS_H
#define GCC_DEFAULTS_H
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_CR 015
-# define TARGET_DIGIT0 060
-# define TARGET_ESC 033
-# define TARGET_FF 014
-# define TARGET_NEWLINE 012
-# define TARGET_TAB 011
-# define TARGET_VT 013
-#endif
-
/* 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. */
} 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 / 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. */
#ifndef ASM_OUTPUT_ASCII
#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. */
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
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. */
+ 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 */
+/* This determines whether or not we need linkonce unwind information. */
#ifndef TARGET_USES_WEAK_UNWIND_INFO
#define TARGET_USES_WEAK_UNWIND_INFO 0
#endif
# endif
#endif
-/* This determines whether this target supports hidden visibility.
- This is a weaker condition than HAVE_GAS_HIDDEN, which probes for
- specific assembler syntax. */
-#ifndef TARGET_SUPPORTS_HIDDEN
-# ifdef HAVE_GAS_HIDDEN
-# define TARGET_SUPPORTS_HIDDEN 1
-# else
-# define TARGET_SUPPORTS_HIDDEN 0
-# 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. */
#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
#endif
/* Number of hardware registers that go into the DWARF-2 unwind info.
#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
#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 (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 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 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
address register in a MEM. Allow the choice to be dependent upon
the mode of the memory access. */
#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
#define FLOAT_LIB_COMPARE_RETURNS_BOOL(MODE, COMPARISON) false
#endif
-/* True if the targets integer-comparision fucntions return { 0, 1, 2
+/* 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 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 0
+#define UNITS_PER_SIMD_WORD UNITS_PER_WORD
#endif
/* Determine whether __cxa_atexit, rather than atexit, is used to
#define REGISTER_MOVE_COST(m, x, y) 2
#endif
-/* Determine whether the the entire c99 runtime
+/* Determine whether the entire c99 runtime
is present in the runtime library. */
#ifndef TARGET_C99_FUNCTIONS
#define TARGET_C99_FUNCTIONS 0
#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
+
+/* 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
+
#endif /* ! GCC_DEFAULTS_H */
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