/* Definitions of various defaults for tm.h macros.
- Copyright (C) 1992, 1996, 1997, 1998, 1999, 2000, 2001
+ Copyright (C) 1992, 1996, 1997, 1998, 1999, 2000, 2001, 2002
Free Software Foundation, Inc.
Contributed by Ron Guilmette (rfg@monkeys.com)
-This file is part of GNU CC.
+This file is part of GCC.
-GNU CC 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 version.
+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
+version.
-GNU CC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
You should have received a copy of the GNU General Public License
-along with GNU CC; 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 COPYING. If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA. */
#ifndef GCC_DEFAULTS_H
#define GCC_DEFAULTS_H
+#ifndef GET_ENVIRONMENT
+#define GET_ENVIRONMENT(VALUE, NAME) do { (VALUE) = getenv (NAME); } while (0)
+#endif
+
+#define obstack_chunk_alloc xmalloc
+#define obstack_chunk_free 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.
LABELNO is an integer which is different for each call. */
#ifndef ASM_OUTPUT_ADDR_VEC_ELT
#define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \
-do { fprintf (FILE, "\t%s\t", ASM_LONG); \
+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
-/* Provide default for ASM_OUTPUT_ALTERNATE_LABEL_NAME. */
-#ifndef ASM_OUTPUT_ALTERNATE_LABEL_NAME
-#define ASM_OUTPUT_ALTERNATE_LABEL_NAME(FILE,INSN) \
-do { ASM_OUTPUT_LABEL(FILE,LABEL_ALTERNATE_NAME (INSN)); } while (0)
-#endif
-
/* choose a reasonable default for ASM_OUTPUT_ASCII. */
#ifndef ASM_OUTPUT_ASCII
\
for (i = 0; i < thissize; i++) \
{ \
- register int c = p[i]; \
+ int c = p[i]; \
if (c == '\"' || c == '\\') \
putc ('\\', asm_out_file); \
if (ISPRINT(c)) \
fprintf (asm_out_file, "\\%o", c); \
/* After an octal-escape, if a digit follows, \
terminate one string constant and start another. \
- The Vax assembler fails to stop reading the escape \
+ The VAX assembler fails to stop reading the escape \
after three digits, so this is the only way we \
can get it to parse the data properly. */ \
if (i < thissize - 1 && ISDIGIT(p[i + 1])) \
while (0)
#endif
-#ifndef ASM_IDENTIFY_GCC
- /* Default the definition, only if ASM_IDENTIFY_GCC is not set,
- because if it is set, we might not want ASM_IDENTIFY_LANGUAGE
- outputting labels, if we do want it to, then it must be defined
- in the tm.h file. */
-#ifndef ASM_IDENTIFY_LANGUAGE
-#define ASM_IDENTIFY_LANGUAGE(FILE) output_lang_identify (FILE);
-#endif
-#endif
-
/* This is how we tell the assembler to equate two values. */
#ifdef SET_ASM_OP
#ifndef ASM_OUTPUT_DEF
#endif
#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
+
/* This is how to output a reference to a user-level label named NAME. */
#ifndef ASM_OUTPUT_LABELREF
ASM_OUTPUT_INTERNAL_LABEL (FILE, PREFIX, NUM)
#endif
+/* This is how we tell the assembler that a symbol is weak. */
+#ifndef ASM_OUTPUT_WEAK_ALIAS
+#if defined (ASM_WEAKEN_LABEL) && defined (ASM_OUTPUT_DEF)
+#define ASM_OUTPUT_WEAK_ALIAS(STREAM, NAME, VALUE) \
+ do \
+ { \
+ ASM_WEAKEN_LABEL (STREAM, NAME); \
+ if (VALUE) \
+ ASM_OUTPUT_DEF (STREAM, NAME, VALUE); \
+ } \
+ while (0)
+#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); \
+ fputs (", ", STREAM); \
+ fprintf (STREAM, HOST_WIDE_INT_PRINT_DEC, size_); \
+ putc ('\n', STREAM); \
+ } \
+ 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
-#ifdef ASM_WEAKEN_LABEL
+#if defined (ASM_WEAKEN_LABEL) || defined (ASM_WEAKEN_DECL)
#define SUPPORTS_WEAK 1
#else
#define SUPPORTS_WEAK 0
/* If the target supports weak symbols, define TARGET_ATTRIBUTE_WEAK to
provide a weak attribute. Else define it to nothing.
- This would normally belong in gansidecl.h, but SUPPORTS_WEAK is
+ This would normally belong in ansidecl.h, but SUPPORTS_WEAK is
not available at that time.
Note, this is only for use by target files which we know are to be
#define SUPPORTS_INIT_PRIORITY 1
#endif /* SUPPORTS_INIT_PRIORITY */
+/* If duplicate library search directories can be removed from a
+ linker command without changing the linker's semantics, give this
+ symbol a nonzero. */
+#ifndef LINK_ELIMINATE_DUPLICATE_LDIRECTORIES
+#define LINK_ELIMINATE_DUPLICATE_LDIRECTORIES 0
+#endif /* LINK_ELIMINATE_DUPLICATE_LDIRECTORIES */
+
/* 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)
#define DWARF2_UNWIND_INFO 1
#endif
-#if defined (DWARF2_UNWIND_INFO) && !defined (EH_FRAME_SECTION)
-# if defined (EH_FRAME_SECTION_ASM_OP)
-# define EH_FRAME_SECTION() eh_frame_section ()
-# else
- /* If we aren't using crtstuff to run ctors, don't use it for EH. */
-# if defined (ASM_OUTPUT_SECTION_NAME) && defined (ASM_OUTPUT_CONSTRUCTOR)
-# define EH_FRAME_SECTION_ASM_OP "\t.section\t.eh_frame,\"aw\""
-# define EH_FRAME_SECTION() \
- do { named_section (NULL_TREE, ".eh_frame", 0); } while (0)
-# endif
-# endif
+/* If we have named sections, and we're using crtstuff to run ctors,
+ use them for registering eh frame information. */
+#if defined (TARGET_ASM_NAMED_SECTION) && DWARF2_UNWIND_INFO \
+ && !defined(EH_FRAME_IN_DATA_SECTION)
+#ifndef EH_FRAME_SECTION_NAME
+#define EH_FRAME_SECTION_NAME ".eh_frame"
+#endif
#endif
-/* If we have no definition for UNIQUE_SECTION, but do have the
- ability to generate arbitrary sections, construct something
- reasonable. */
-#ifdef ASM_OUTPUT_SECTION_NAME
-#ifndef UNIQUE_SECTION
-#define UNIQUE_SECTION(DECL,RELOC) \
-do { \
- int len; \
- const char *name; \
- char *string; \
- \
- name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (DECL)); \
- /* Strip off any encoding in name. */ \
- STRIP_NAME_ENCODING (name, name); \
- \
- len = strlen (name) + 1; \
- string = alloca (len + 1); \
- sprintf (string, ".%s", name); \
- \
- DECL_SECTION_NAME (DECL) = build_string (len, string); \
-} while (0)
-#endif
-#ifndef UNIQUE_SECTION_P
-#define UNIQUE_SECTION_P(DECL) 0
+/* 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. */
+#if defined (TARGET_ASM_NAMED_SECTION) && SUPPORTS_WEAK
+#ifndef JCR_SECTION_NAME
+#define JCR_SECTION_NAME ".jcr"
#endif
#endif
#define DWARF_FRAME_REGISTERS FIRST_PSEUDO_REGISTER
#endif
+/* How to renumber registers for dbx and gdb. If not defined, assume
+ no renumbering is necessary. */
+
+#ifndef DBX_REGISTER_NUMBER
+#define DBX_REGISTER_NUMBER(REGNO) (REGNO)
+#endif
+
/* Default sizes for base C types. If the sizes are different for
your target, you should override these values by defining the
appropriate symbols in your tm.h file. */
+#ifndef BITS_PER_UNIT
+#define BITS_PER_UNIT 8
+#endif
+
+#ifndef BITS_PER_WORD
+#define BITS_PER_WORD (BITS_PER_UNIT * UNITS_PER_WORD)
+#endif
+
#ifndef CHAR_TYPE_SIZE
#define CHAR_TYPE_SIZE BITS_PER_UNIT
#endif
+#ifndef BOOL_TYPE_SIZE
+/* `bool' has size and alignment `1', on almost all platforms. */
+#define BOOL_TYPE_SIZE CHAR_TYPE_SIZE
+#endif
+
#ifndef SHORT_TYPE_SIZE
#define SHORT_TYPE_SIZE (BITS_PER_UNIT * MIN ((UNITS_PER_WORD + 1) / 2, 2))
#endif
#define WCHAR_TYPE_SIZE INT_TYPE_SIZE
#endif
-#ifndef WCHAR_UNSIGNED
-#define WCHAR_UNSIGNED 0
-#endif
-
#ifndef FLOAT_TYPE_SIZE
#define FLOAT_TYPE_SIZE BITS_PER_WORD
#endif
#define LONG_DOUBLE_TYPE_SIZE (BITS_PER_WORD * 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
+#endif
+
+
/* By default, the preprocessor should be invoked the same way in C++
as in C. */
#ifndef CPLUSPLUS_CPP_SPEC
#endif
#endif
-#endif /* GCC_DEFAULTS_H */
+#ifndef ACCUMULATE_OUTGOING_ARGS
+#define ACCUMULATE_OUTGOING_ARGS 0
+#endif
+
+/* Supply a default definition for PUSH_ARGS. */
+#ifndef PUSH_ARGS
+#ifdef PUSH_ROUNDING
+#define PUSH_ARGS !ACCUMULATE_OUTGOING_ARGS
+#else
+#define PUSH_ARGS 0
+#endif
+#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
+
+/* By default, the C++ compiler will use function addresses in the
+ vtable entries. Setting this non-zero 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
+ that the address of a function descriptor may be treated as a
+ pointer to a function. */
+#ifndef TARGET_VTABLE_USES_DESCRIPTORS
+#define TARGET_VTABLE_USES_DESCRIPTORS 0
+#endif
+
+/* 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. */
+#ifndef TARGET_VTABLE_ENTRY_ALIGN
+#define TARGET_VTABLE_ENTRY_ALIGN POINTER_SIZE
+#endif
+
+/* There are a few non-descriptor entries in the vtable at offsets below
+ zero. If these entries must be padded (say, to preserve the alignment
+ specified by TARGET_VTABLE_ENTRY_ALIGN), set this to the number of
+ words in each data entry. */
+#ifndef TARGET_VTABLE_DATA_ENTRY_DISTANCE
+#define TARGET_VTABLE_DATA_ENTRY_DISTANCE 1
+#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. */
+#ifndef ASM_PREFERRED_EH_DATA_FORMAT
+#define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) DW_EH_PE_absptr
+#endif
+
+/* By default, the C++ compiler will use the lowest bit of the pointer
+ to function to indicate a pointer-to-member-function points to a
+ virtual member function. However, if FUNCTION_BOUNDARY indicates
+ function addresses aren't always even, the lowest bit of the delta
+ field will be used. */
+#ifndef TARGET_PTRMEMFUNC_VBIT_LOCATION
+#define TARGET_PTRMEMFUNC_VBIT_LOCATION \
+ (FUNCTION_BOUNDARY >= 2 * BITS_PER_UNIT \
+ ? ptrmemfunc_vbit_in_pfn : ptrmemfunc_vbit_in_delta)
+#endif
+
+#ifndef DEFAULT_GDB_EXTENSIONS
+#define DEFAULT_GDB_EXTENSIONS 1
+#endif
+
+/* If more than one debugging type is supported, you must define
+ PREFERRED_DEBUGGING_TYPE to choose a format in a system-dependent way.
+
+ 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))
+#ifndef PREFERRED_DEBUGGING_TYPE
+You Lose! 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
+#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
+#endif
+#ifdef 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
+#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
+#endif
+#ifdef VMS_DEBUGGING_INFO
+#define PREFERRED_DEBUGGING_TYPE VMS_AND_DWARF2_DEBUG
+#endif
+#ifdef 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
+#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. */
+
+#ifndef FUNCTION_ARG_REG_LITTLE_ENDIAN
+#define FUNCTION_ARG_REG_LITTLE_ENDIAN 0
+#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
+
+#ifndef ROUND_TOWARDS_ZERO
+#define ROUND_TOWARDS_ZERO 0
+#endif
+
+#ifndef MODE_HAS_NANS
+#define MODE_HAS_NANS(MODE) \
+ (FLOAT_MODE_P (MODE) \
+ && TARGET_FLOAT_FORMAT == IEEE_FLOAT_FORMAT \
+ && !LARGEST_EXPONENT_IS_NORMAL (GET_MODE_BITSIZE (MODE)))
+#endif
+
+#ifndef MODE_HAS_INFINITIES
+#define MODE_HAS_INFINITIES(MODE) \
+ (FLOAT_MODE_P (MODE) \
+ && TARGET_FLOAT_FORMAT == IEEE_FLOAT_FORMAT \
+ && !LARGEST_EXPONENT_IS_NORMAL (GET_MODE_BITSIZE (MODE)))
+#endif
+
+#ifndef MODE_HAS_SIGNED_ZEROS
+#define MODE_HAS_SIGNED_ZEROS(MODE) \
+ (FLOAT_MODE_P (MODE) && TARGET_FLOAT_FORMAT == IEEE_FLOAT_FORMAT)
+#endif
+
+#ifndef MODE_HAS_SIGN_DEPENDENT_ROUNDING
+#define MODE_HAS_SIGN_DEPENDENT_ROUNDING(MODE) \
+ (FLOAT_MODE_P (MODE) \
+ && TARGET_FLOAT_FORMAT == IEEE_FLOAT_FORMAT \
+ && !ROUND_TOWARDS_ZERO)
+#endif
+
+#ifndef HOT_TEXT_SECTION_NAME
+#define HOT_TEXT_SECTION_NAME "text.hot"
+#endif
+
+#ifndef UNLIKELY_EXECUTED_TEXT_SECTION_NAME
+#define UNLIKELY_EXECUTED_TEXT_SECTION_NAME "text.unlikely"
+#endif
+
+#ifndef VECTOR_MODE_SUPPORTED_P
+#define VECTOR_MODE_SUPPORTED_P(MODE) 0
+#endif
+
+/* Determine whether __cxa_atexit, rather than atexit, is used to
+ register C++ destructors for local statics and global objects. */
+#ifndef DEFAULT_USE_CXA_ATEXIT
+#define DEFAULT_USE_CXA_ATEXIT 0
+#endif
+#endif /* ! GCC_DEFAULTS_H */