--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/config/elfos.h	Fri Jul 17 14:47:48 2009 +0900
@@ -0,0 +1,520 @@
+/* elfos.h  --  operating system specific defines to be used when
+   targeting GCC for some generic ELF system
+   Copyright (C) 1991, 1994, 1995, 1999, 2000, 2001, 2002, 2003, 2004,
+   2007, 2009 Free Software Foundation, Inc.
+   Based on svr4.h contributed by Ron Guilmette (rfg@netcom.com).
+
+This file is part of GCC.
+
+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 3, or (at your option)
+any later version.
+
+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.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#define TARGET_OBJFMT_CPP_BUILTINS()		\
+  do						\
+    {						\
+	builtin_define ("__ELF__");		\
+    }						\
+  while (0)
+
+/* Define a symbol indicating that we are using elfos.h.
+   Some CPU specific configuration files use this.  */
+#define USING_ELFOS_H
+
+/* The prefix to add to user-visible assembler symbols.
+
+   For ELF systems the convention is *not* to prepend a leading
+   underscore onto user-level symbol names.  */
+
+#undef  USER_LABEL_PREFIX
+#define USER_LABEL_PREFIX ""
+
+/* The biggest alignment supported by ELF in bits. 32-bit ELF 
+   supports section alignment up to (0x80000000 * 8), while 
+   64-bit ELF supports (0x8000000000000000 * 8). If this macro 
+   is not defined, the default is the largest alignment supported 
+   by 32-bit ELF and representable on a 32-bit host. Use this
+   macro to limit the alignment which can be specified using
+   the `__attribute__ ((aligned (N)))' construct.  */
+#ifndef MAX_OFILE_ALIGNMENT
+#define MAX_OFILE_ALIGNMENT (((unsigned int) 1 << 28) * 8)
+#endif
+
+/* Use periods rather than dollar signs in special g++ assembler names.  */
+
+#define NO_DOLLAR_IN_LABEL
+
+/* Writing `int' for a bit-field forces int alignment for the structure.  */
+
+#ifndef PCC_BITFIELD_TYPE_MATTERS
+#define PCC_BITFIELD_TYPE_MATTERS 1
+#endif
+
+/* Handle #pragma weak and #pragma pack.  */
+
+#define HANDLE_SYSV_PRAGMA 1
+
+/* All ELF targets can support DWARF-2.  */
+
+#define DWARF2_DEBUGGING_INFO 1
+
+/* The GNU tools operate better with dwarf2, and it is required by some
+   psABI's.  Since we don't have any native tools to be compatible with,
+   default to dwarf2.  */
+
+#ifndef PREFERRED_DEBUGGING_TYPE
+#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
+#endif
+
+/* All SVR4 targets use the ELF object file format.  */
+#define OBJECT_FORMAT_ELF
+
+
+/* Output #ident as a .ident.  */
+
+#define ASM_OUTPUT_IDENT(FILE, NAME) \
+  fprintf (FILE, "%s\"%s\"\n", IDENT_ASM_OP, NAME);
+
+#define IDENT_ASM_OP "\t.ident\t"
+
+#undef  SET_ASM_OP
+#define SET_ASM_OP	"\t.set\t"
+
+/* Most svr4 assemblers want a .file directive at the beginning of
+   their input file.  */
+#define TARGET_ASM_FILE_START_FILE_DIRECTIVE true
+
+/* This is how to allocate empty space in some section.  The .zero
+   pseudo-op is used for this on most svr4 assemblers.  */
+
+#define SKIP_ASM_OP	"\t.zero\t"
+
+#undef  ASM_OUTPUT_SKIP
+#define ASM_OUTPUT_SKIP(FILE, SIZE) \
+   fprintf ((FILE), "%s"HOST_WIDE_INT_PRINT_UNSIGNED"\n",\
+	    SKIP_ASM_OP, (SIZE))
+
+/* This is how to store into the string LABEL
+   the symbol_ref name of an internal numbered label where
+   PREFIX is the class of label and NUM is the number within the class.
+   This is suitable for output with `assemble_name'.
+
+   For most svr4 systems, the convention is that any symbol which begins
+   with a period is not put into the linker symbol table by the assembler.  */
+
+#undef  ASM_GENERATE_INTERNAL_LABEL
+#define ASM_GENERATE_INTERNAL_LABEL(LABEL, PREFIX, NUM)		\
+  do								\
+    {								\
+      sprintf (LABEL, "*.%s%u", PREFIX, (unsigned) (NUM));	\
+    }								\
+  while (0)
+
+/* Output the label which precedes a jumptable.  Note that for all svr4
+   systems where we actually generate jumptables (which is to say every
+   svr4 target except i386, where we use casesi instead) we put the jump-
+   tables into the .rodata section and since other stuff could have been
+   put into the .rodata section prior to any given jumptable, we have to
+   make sure that the location counter for the .rodata section gets pro-
+   perly re-aligned prior to the actual beginning of the jump table.  */
+
+#undef ALIGN_ASM_OP
+#define ALIGN_ASM_OP "\t.align\t"
+
+#ifndef ASM_OUTPUT_BEFORE_CASE_LABEL
+#define ASM_OUTPUT_BEFORE_CASE_LABEL(FILE, PREFIX, NUM, TABLE) \
+  ASM_OUTPUT_ALIGN ((FILE), 2);
+#endif
+
+#undef  ASM_OUTPUT_CASE_LABEL
+#define ASM_OUTPUT_CASE_LABEL(FILE, PREFIX, NUM, JUMPTABLE)		\
+  do									\
+    {									\
+      ASM_OUTPUT_BEFORE_CASE_LABEL (FILE, PREFIX, NUM, JUMPTABLE)	\
+	(*targetm.asm_out.internal_label) (FILE, PREFIX, NUM);			\
+    }									\
+  while (0)
+
+/* The standard SVR4 assembler seems to require that certain builtin
+   library routines (e.g. .udiv) be explicitly declared as .globl
+   in each assembly file where they are referenced.  */
+
+#define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN)	\
+  (*targetm.asm_out.globalize_label) (FILE, XSTR (FUN, 0))
+
+/* This says how to output assembler code to declare an
+   uninitialized external linkage data object.  Under SVR4,
+   the linker seems to want the alignment of data objects
+   to depend on their types.  We do exactly that here.  */
+
+#define COMMON_ASM_OP	"\t.comm\t"
+
+#undef  ASM_OUTPUT_ALIGNED_COMMON
+#define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN)		\
+  do									\
+    {									\
+      fprintf ((FILE), "%s", COMMON_ASM_OP);				\
+      assemble_name ((FILE), (NAME));					\
+      fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n",		\
+	       (SIZE), (ALIGN) / BITS_PER_UNIT);			\
+    }									\
+  while (0)
+
+/* This says how to output assembler code to declare an
+   uninitialized internal linkage data object.  Under SVR4,
+   the linker seems to want the alignment of data objects
+   to depend on their types.  We do exactly that here.  */
+
+#define LOCAL_ASM_OP	"\t.local\t"
+
+#undef  ASM_OUTPUT_ALIGNED_LOCAL
+#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN)	\
+  do								\
+    {								\
+      fprintf ((FILE), "%s", LOCAL_ASM_OP);			\
+      assemble_name ((FILE), (NAME));				\
+      fprintf ((FILE), "\n");					\
+      ASM_OUTPUT_ALIGNED_COMMON (FILE, NAME, SIZE, ALIGN);	\
+    }								\
+  while (0)
+
+/* This is the pseudo-op used to generate a contiguous sequence of byte
+   values from a double-quoted string WITHOUT HAVING A TERMINATING NUL
+   AUTOMATICALLY APPENDED.  This is the same for most svr4 assemblers.  */
+
+#undef  ASCII_DATA_ASM_OP
+#define ASCII_DATA_ASM_OP	"\t.ascii\t"
+
+/* Support a read-only data section.  */
+#define READONLY_DATA_SECTION_ASM_OP	"\t.section\t.rodata"
+
+/* On svr4, we *do* have support for the .init and .fini sections, and we
+   can put stuff in there to be executed before and after `main'.  We let
+   crtstuff.c and other files know this by defining the following symbols.
+   The definitions say how to change sections to the .init and .fini
+   sections.  This is the same for all known svr4 assemblers.  */
+
+#define INIT_SECTION_ASM_OP	"\t.section\t.init"
+#define FINI_SECTION_ASM_OP	"\t.section\t.fini"
+
+/* Output assembly directive to move to the beginning of current section.  */
+#ifdef HAVE_GAS_SUBSECTION_ORDERING
+# define ASM_SECTION_START_OP	"\t.subsection\t-1"
+# define ASM_OUTPUT_SECTION_START(FILE)	\
+  fprintf ((FILE), "%s\n", ASM_SECTION_START_OP)
+#endif
+
+#define MAKE_DECL_ONE_ONLY(DECL) (DECL_WEAK (DECL) = 1)
+
+/* Switch into a generic section.  */
+#define TARGET_ASM_NAMED_SECTION  default_elf_asm_named_section
+
+#undef  TARGET_ASM_SELECT_RTX_SECTION
+#define TARGET_ASM_SELECT_RTX_SECTION default_elf_select_rtx_section
+#undef	TARGET_ASM_SELECT_SECTION
+#define TARGET_ASM_SELECT_SECTION default_elf_select_section
+#undef  TARGET_HAVE_SWITCHABLE_BSS_SECTIONS
+#define TARGET_HAVE_SWITCHABLE_BSS_SECTIONS true
+
+/* Define the strings used for the special svr4 .type and .size directives.
+   These strings generally do not vary from one system running svr4 to
+   another, but if a given system (e.g. m88k running svr) needs to use
+   different pseudo-op names for these, they may be overridden in the
+   file which includes this one.  */
+
+#define TYPE_ASM_OP	"\t.type\t"
+#define SIZE_ASM_OP	"\t.size\t"
+
+/* This is how we tell the assembler that a symbol is weak.  */
+
+#define ASM_WEAKEN_LABEL(FILE, NAME)	\
+  do					\
+    {					\
+      fputs ("\t.weak\t", (FILE));	\
+      assemble_name ((FILE), (NAME));	\
+      fputc ('\n', (FILE));		\
+    }					\
+  while (0)
+
+/* The following macro defines the format used to output the second
+   operand of the .type assembler directive.  Different svr4 assemblers
+   expect various different forms for this operand.  The one given here
+   is just a default.  You may need to override it in your machine-
+   specific tm.h file (depending upon the particulars of your assembler).  */
+
+#define TYPE_OPERAND_FMT	"@%s"
+
+/* Write the extra assembler code needed to declare a function's result.
+   Most svr4 assemblers don't require any special declaration of the
+   result value, but there are exceptions.  */
+
+#ifndef ASM_DECLARE_RESULT
+#define ASM_DECLARE_RESULT(FILE, RESULT)
+#endif
+
+/* These macros generate the special .type and .size directives which
+   are used to set the corresponding fields of the linker symbol table
+   entries in an ELF object file under SVR4.  These macros also output
+   the starting labels for the relevant functions/objects.  */
+
+/* Write the extra assembler code needed to declare a function properly.
+   Some svr4 assemblers need to also have something extra said about the
+   function's return value.  We allow for that here.  */
+
+#ifndef ASM_DECLARE_FUNCTION_NAME
+#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL)		\
+  do								\
+    {								\
+      ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "function");	\
+      ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL));		\
+      ASM_OUTPUT_LABEL (FILE, NAME);				\
+    }								\
+  while (0)
+#endif
+
+/* Write the extra assembler code needed to declare an object properly.  */
+
+#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL)		\
+  do								\
+    {								\
+      HOST_WIDE_INT size;					\
+								\
+      ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object");		\
+								\
+      size_directive_output = 0;				\
+      if (!flag_inhibit_size_directive				\
+	  && (DECL) && DECL_SIZE (DECL))			\
+	{							\
+	  size_directive_output = 1;				\
+	  size = int_size_in_bytes (TREE_TYPE (DECL));		\
+	  ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, size);		\
+	}							\
+								\
+      ASM_OUTPUT_LABEL (FILE, NAME);				\
+    }								\
+  while (0)
+
+/* Output the size directive for a decl in rest_of_decl_compilation
+   in the case where we did not do so before the initializer.
+   Once we find the error_mark_node, we know that the value of
+   size_directive_output was set
+   by ASM_DECLARE_OBJECT_NAME when it was run for the same decl.  */
+
+#undef ASM_FINISH_DECLARE_OBJECT
+#define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END)\
+  do								\
+    {								\
+      const char *name = XSTR (XEXP (DECL_RTL (DECL), 0), 0);	\
+      HOST_WIDE_INT size;					\
+								\
+      if (!flag_inhibit_size_directive				\
+	  && DECL_SIZE (DECL)					\
+	  && ! AT_END && TOP_LEVEL				\
+	  && DECL_INITIAL (DECL) == error_mark_node		\
+	  && !size_directive_output)				\
+	{							\
+	  size_directive_output = 1;				\
+	  size = int_size_in_bytes (TREE_TYPE (DECL));		\
+	  ASM_OUTPUT_SIZE_DIRECTIVE (FILE, name, size);		\
+	}							\
+    }								\
+  while (0)
+
+/* This is how to declare the size of a function.  */
+#ifndef ASM_DECLARE_FUNCTION_SIZE
+#define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL)		\
+  do								\
+    {								\
+      if (!flag_inhibit_size_directive)				\
+	ASM_OUTPUT_MEASURED_SIZE (FILE, FNAME);			\
+    }								\
+  while (0)
+#endif
+
+/* A table of bytes codes used by the ASM_OUTPUT_ASCII and
+   ASM_OUTPUT_LIMITED_STRING macros.  Each byte in the table
+   corresponds to a particular byte value [0..255].  For any
+   given byte value, if the value in the corresponding table
+   position is zero, the given character can be output directly.
+   If the table value is 1, the byte must be output as a \ooo
+   octal escape.  If the tables value is anything else, then the
+   byte value should be output as a \ followed by the value
+   in the table.  Note that we can use standard UN*X escape
+   sequences for many control characters, but we don't use
+   \a to represent BEL because some svr4 assemblers (e.g. on
+   the i386) don't know about that.  Also, we don't use \v
+   since some versions of gas, such as 2.2 did not accept it.  */
+
+#define ESCAPES \
+"\1\1\1\1\1\1\1\1btn\1fr\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\
+\0\0\"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\
+\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\\\0\0\0\
+\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\
+\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\
+\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\
+\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\
+\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1"
+
+/* Some svr4 assemblers have a limit on the number of characters which
+   can appear in the operand of a .string directive.  If your assembler
+   has such a limitation, you should define STRING_LIMIT to reflect that
+   limit.  Note that at least some svr4 assemblers have a limit on the
+   actual number of bytes in the double-quoted string, and that they
+   count each character in an escape sequence as one byte.  Thus, an
+   escape sequence like \377 would count as four bytes.
+
+   If your target assembler doesn't support the .string directive, you
+   should define this to zero.
+*/
+
+#define STRING_LIMIT	((unsigned) 256)
+
+#define STRING_ASM_OP	"\t.string\t"
+
+/* The routine used to output NUL terminated strings.  We use a special
+   version of this for most svr4 targets because doing so makes the
+   generated assembly code more compact (and thus faster to assemble)
+   as well as more readable, especially for targets like the i386
+   (where the only alternative is to output character sequences as
+   comma separated lists of numbers).  */
+
+#define ASM_OUTPUT_LIMITED_STRING(FILE, STR)		\
+  do							\
+    {							\
+      register const unsigned char *_limited_str =	\
+	(const unsigned char *) (STR);			\
+      register unsigned ch;				\
+							\
+      fprintf ((FILE), "%s\"", STRING_ASM_OP);		\
+							\
+      for (; (ch = *_limited_str); _limited_str++)	\
+        {						\
+	  register int escape;				\
+							\
+	  switch (escape = ESCAPES[ch])			\
+	    {						\
+	    case 0:					\
+	      putc (ch, (FILE));			\
+	      break;					\
+	    case 1:					\
+	      fprintf ((FILE), "\\%03o", ch);		\
+	      break;					\
+	    default:					\
+	      putc ('\\', (FILE));			\
+	      putc (escape, (FILE));			\
+	      break;					\
+	    }						\
+        }						\
+							\
+      fprintf ((FILE), "\"\n");				\
+    }							\
+  while (0)
+
+/* The routine used to output sequences of byte values.  We use a special
+   version of this for most svr4 targets because doing so makes the
+   generated assembly code more compact (and thus faster to assemble)
+   as well as more readable.  Note that if we find subparts of the
+   character sequence which end with NUL (and which are shorter than
+   STRING_LIMIT) we output those using ASM_OUTPUT_LIMITED_STRING.  */
+
+#undef  ASM_OUTPUT_ASCII
+#define ASM_OUTPUT_ASCII(FILE, STR, LENGTH)				\
+  do									\
+    {									\
+      const unsigned char *_ascii_bytes =				\
+	(const unsigned char *) (STR);					\
+      const unsigned char *limit = _ascii_bytes + (LENGTH);		\
+      const unsigned char *last_null = NULL;				\
+      unsigned bytes_in_chunk = 0;					\
+									\
+      for (; _ascii_bytes < limit; _ascii_bytes++)			\
+        {								\
+	  const unsigned char *p;					\
+									\
+	  if (bytes_in_chunk >= 60)					\
+	    {								\
+	      fprintf ((FILE), "\"\n");					\
+	      bytes_in_chunk = 0;					\
+	    }								\
+									\
+	  if (_ascii_bytes > last_null)					\
+	    {								\
+	      for (p = _ascii_bytes; p < limit && *p != '\0'; p++)	\
+		continue;						\
+	      last_null = p;						\
+	    }								\
+	  else								\
+	    p = last_null;						\
+									\
+	  if (p < limit && (p - _ascii_bytes) <= (long)STRING_LIMIT)	\
+	    {								\
+	      if (bytes_in_chunk > 0)					\
+		{							\
+		  fprintf ((FILE), "\"\n");				\
+		  bytes_in_chunk = 0;					\
+		}							\
+									\
+	      ASM_OUTPUT_LIMITED_STRING ((FILE), _ascii_bytes);		\
+	      _ascii_bytes = p;						\
+	    }								\
+	  else								\
+	    {								\
+	      register int escape;					\
+	      register unsigned ch;					\
+									\
+	      if (bytes_in_chunk == 0)					\
+		fprintf ((FILE), "%s\"", ASCII_DATA_ASM_OP);		\
+									\
+	      switch (escape = ESCAPES[ch = *_ascii_bytes])		\
+		{							\
+		case 0:							\
+		  putc (ch, (FILE));					\
+		  bytes_in_chunk++;					\
+		  break;						\
+		case 1:							\
+		  fprintf ((FILE), "\\%03o", ch);			\
+		  bytes_in_chunk += 4;					\
+		  break;						\
+		default:						\
+		  putc ('\\', (FILE));					\
+		  putc (escape, (FILE));				\
+		  bytes_in_chunk += 2;					\
+		  break;						\
+		}							\
+	    }								\
+	}								\
+									\
+      if (bytes_in_chunk > 0)						\
+        fprintf ((FILE), "\"\n");					\
+    }									\
+  while (0)
+
+/* Allow the use of the -frecord-gcc-switches switch via the
+   elf_record_gcc_switches function defined in varasm.c.  */
+#undef  TARGET_ASM_RECORD_GCC_SWITCHES
+#define TARGET_ASM_RECORD_GCC_SWITCHES elf_record_gcc_switches
+
+/* A C statement (sans semicolon) to output to the stdio stream STREAM
+   any text necessary for declaring the name of an external symbol
+   named NAME which is referenced in this compilation but not defined.
+   It is needed to properly support non-default visibility.  */
+
+#ifndef ASM_OUTPUT_EXTERNAL
+#define ASM_OUTPUT_EXTERNAL(FILE, DECL, NAME) \
+  default_elf_asm_output_external (FILE, DECL, NAME)
+#endif