Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0.

These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.

1 files changed, 341 insertions, 37 deletions

diff --git a/contrib/gcc/defaults.h b/contrib/gcc/defaults.h
index a0e3bfc..2a7c567 100644
--- a/contrib/gcc/defaults.h
+++ b/contrib/gcc/defaults.h
@@ -1,25 +1,39 @@
-/* Definitions of various defaults for how to do assembler output
-   (most of which are designed to be appropriate for GAS or for
-   some BSD assembler).
-   Copyright (C) 1992, 1996, 1997, 1998 Free Software Foundation, Inc.
+/* Definitions of various defaults for tm.h macros.
+   Copyright (C) 1992, 1996, 1997, 1998, 1999, 2000, 2001
+   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
+
+/* 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
 
 /* Store in OUTPUT a string (made with alloca) containing
    an assembler-name for a local static variable or function named NAME.
@@ -40,7 +54,7 @@ Boston, MA 02111-1307, USA.  */
 #endif
 
 #ifndef ASM_STABD_OP
-#define ASM_STABD_OP ".stabd"
+#define ASM_STABD_OP "\t.stabd\t"
 #endif
 
 /* This is how to output an element of a case-vector that is absolute.
@@ -48,44 +62,49 @@ Boston, MA 02111-1307, USA.  */
 
 #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
 #define ASM_OUTPUT_ASCII(MYFILE, MYSTRING, MYLENGTH) \
   do {									      \
     FILE *_hide_asm_out_file = (MYFILE);				      \
-    unsigned char *_hide_p = (unsigned char *) (MYSTRING);		      \
+    const unsigned char *_hide_p = (const unsigned char *) (MYSTRING);	      \
     int _hide_thissize = (MYLENGTH);					      \
     {									      \
       FILE *asm_out_file = _hide_asm_out_file;				      \
-      unsigned char *p = _hide_p;					      \
+      const unsigned char *p = _hide_p;					      \
       int thissize = _hide_thissize;					      \
       int i;								      \
       fprintf (asm_out_file, "\t.ascii \"");				      \
 									      \
       for (i = 0; i < thissize; i++)					      \
 	{								      \
-	  register int c = p[i];					      \
+	  int c = p[i];			   				      \
 	  if (c == '\"' || c == '\\')					      \
 	    putc ('\\', asm_out_file);					      \
-	  if (c >= ' ' && c < 0177)					      \
+	  if (ISPRINT(c))						      \
 	    putc (c, asm_out_file);					      \
 	  else								      \
 	    {								      \
 	      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					      \
-		  && p[i + 1] >= '0' && p[i + 1] <= '9')		      \
+	      if (i < thissize - 1 && ISDIGIT(p[i + 1]))		      \
 		fprintf (asm_out_file, "\"\n\t.ascii \"");		      \
 	  }								      \
 	}								      \
@@ -95,21 +114,11 @@ do { fprintf (FILE, "\t%s\t", ASM_LONG);				\
   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
 #define ASM_OUTPUT_DEF(FILE,LABEL1,LABEL2)				\
- do {	fprintf ((FILE), "\t%s\t", SET_ASM_OP);				\
+ do {	fprintf ((FILE), "%s", SET_ASM_OP);				\
 	assemble_name (FILE, LABEL1);					\
 	fprintf (FILE, ",");						\
 	assemble_name (FILE, LABEL2);					\
@@ -124,6 +133,29 @@ do { fprintf (FILE, "\t%s\t", ASM_LONG);				\
 #define ASM_OUTPUT_LABELREF(FILE,NAME)  asm_fprintf ((FILE), "%U%s", (NAME))
 #endif
 
+/* Allow target to print debug info labels specially.  This is useful for
+   VLIW targets, since debug info labels should go into the middle of
+   instruction bundles instead of breaking them.  */
+
+#ifndef ASM_OUTPUT_DEBUG_LABEL
+#define ASM_OUTPUT_DEBUG_LABEL(FILE, PREFIX, NUM) \
+  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
+
 /* This determines whether or not we support weak symbols.  */
 #ifndef SUPPORTS_WEAK
 #ifdef ASM_WEAKEN_LABEL
@@ -133,10 +165,19 @@ do { fprintf (FILE, "\t%s\t", ASM_LONG);				\
 #endif
 #endif
 
+/* This determines whether or not we support link-once semantics.  */
+#ifndef SUPPORTS_ONE_ONLY
+#ifdef MAKE_DECL_ONE_ONLY
+#define SUPPORTS_ONE_ONLY 1
+#else
+#define SUPPORTS_ONE_ONLY 0
+#endif
+#endif
+
 /* 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
@@ -149,8 +190,271 @@ do { fprintf (FILE, "\t%s\t", ASM_LONG);				\
 # endif
 #endif
 
+/* If the target supports init_priority C++ attribute, give
+   SUPPORTS_INIT_PRIORITY a nonzero value.  */
+#ifndef SUPPORTS_INIT_PRIORITY
+#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 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) && !defined(EH_FRAME_IN_DATA_SECTION)
+#ifndef EH_FRAME_SECTION_NAME
+#define EH_FRAME_SECTION_NAME ".eh_frame"
+#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.  */
+#if defined (TARGET_ASM_NAMED_SECTION) && SUPPORTS_WEAK
+#ifndef JCR_SECTION_NAME
+#define JCR_SECTION_NAME ".jcr"
+#endif
+#endif
+
+/* If we have no definition for UNIQUE_SECTION, but do have the 
+   ability to generate arbitrary sections, construct something
+   reasonable.  */
+#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
+
+/* 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
+#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.
+   If not defined, equals FIRST_PSEUDO_REGISTER  */
+
+#ifndef DWARF_FRAME_REGISTERS
+#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 CHAR_TYPE_SIZE
+#define CHAR_TYPE_SIZE BITS_PER_UNIT
+#endif
+
+#ifndef SHORT_TYPE_SIZE
+#define SHORT_TYPE_SIZE (BITS_PER_UNIT * MIN ((UNITS_PER_WORD + 1) / 2, 2))
+#endif
+
+#ifndef INT_TYPE_SIZE
+#define INT_TYPE_SIZE BITS_PER_WORD
+#endif
+
+#ifndef LONG_TYPE_SIZE
+#define LONG_TYPE_SIZE BITS_PER_WORD
+#endif
+
+#ifndef LONG_LONG_TYPE_SIZE
+#define LONG_LONG_TYPE_SIZE (BITS_PER_WORD * 2)
+#endif
+
+#ifndef WCHAR_TYPE_SIZE
+#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
+
+#ifndef DOUBLE_TYPE_SIZE
+#define DOUBLE_TYPE_SIZE (BITS_PER_WORD * 2)
+#endif
+
+#ifndef LONG_DOUBLE_TYPE_SIZE
+#define LONG_DOUBLE_TYPE_SIZE (BITS_PER_WORD * 2)
+#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
+#ifdef CPP_SPEC
+#define CPLUSPLUS_CPP_SPEC CPP_SPEC
+#endif
+#endif
+
+#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
+
+/* 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
+
+/* True if it is possible to profile code that does not have a frame
+   pointer.  */
+
+#ifndef TARGET_ALLOWS_PROFILING_WITHOUT_FRAME_POINTER
+#define TARGET_ALLOWS_PROFILING_WITHOUT_FRAME_POINTER true
+#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
+
+#endif  /* ! GCC_DEFAULTS_H */