Copyright (C) 1987, 1988, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
1999, 2000, 2001 Free Software Foundation, Inc.
-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. */
/* Output dbx-format symbol table data.
#include "tm_p.h"
#include "ggc.h"
#include "debug.h"
+#include "function.h"
#include "target.h"
+#include "langhooks.h"
#ifdef XCOFF_DEBUGGING_INFO
#include "xcoffout.h"
/* Number for the next N_SOL filename stabs label. The number 0 is reserved
for the N_SO filename stabs label. */
+#if defined (DBX_DEBUGGING_INFO) && !defined (DBX_OUTPUT_SOURCE_FILENAME)
static int source_label_number = 1;
+#endif
#ifdef DEBUG_SYMS_TEXT
#define FORCE_TEXT text_section ();
static void dbxout_finish PARAMS ((const char *));
static void dbxout_start_source_file PARAMS ((unsigned, const char *));
static void dbxout_end_source_file PARAMS ((unsigned));
-static void dbxout_source_line PARAMS ((unsigned int, const char *));
-static void dbxout_source_file PARAMS ((FILE *, const char *));
-static void dbxout_function_end PARAMS ((void));
static void dbxout_typedefs PARAMS ((tree));
static void dbxout_type_index PARAMS ((tree));
#if DBX_CONTIN_LENGTH > 0
static void dbxout_prepare_symbol PARAMS ((tree));
static void dbxout_finish_symbol PARAMS ((tree));
static void dbxout_block PARAMS ((tree, int, tree));
-static void dbxout_begin_function PARAMS ((tree));
static void dbxout_global_decl PARAMS ((tree));
\f
/* The debug hooks structure. */
#if defined (DBX_DEBUGGING_INFO)
+static void dbxout_source_line PARAMS ((unsigned int, const char *));
+static void dbxout_source_file PARAMS ((FILE *, const char *));
+static void dbxout_function_end PARAMS ((void));
+static void dbxout_begin_function PARAMS ((tree));
static void dbxout_begin_block PARAMS ((unsigned, unsigned));
static void dbxout_end_block PARAMS ((unsigned, unsigned));
static void dbxout_function_decl PARAMS ((tree));
};
#endif /* XCOFF_DEBUGGING_INFO */
\f
+#if defined (DBX_DEBUGGING_INFO)
static void
dbxout_function_end ()
{
assemble_name (asmfile, XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0));
fprintf (asmfile, "\n");
}
+#endif /* DBX_DEBUGGING_INFO */
/* At the beginning of compilation, start writing the symbol table.
Initialize `typevec' and output the standard data types of C. */
#else /* no DBX_OUTPUT_MAIN_SOURCE_DIRECTORY */
fprintf (asmfile, "%s", ASM_STABS_OP);
output_quoted_string (asmfile, cwd);
- fprintf (asmfile, ",%d,0,0,%s\n", N_SO, <ext_label_name[1]);
+ fprintf (asmfile, ",%d,0,0,", N_SO);
+ assemble_name (asmfile, ltext_label_name);
+ fputc ('\n', asmfile);
#endif /* no DBX_OUTPUT_MAIN_SOURCE_DIRECTORY */
}
}
/* Used to put `Ltext:' before the reference, but that loses on sun 4. */
fprintf (asmfile, "%s", ASM_STABS_OP);
output_quoted_string (asmfile, input_file_name);
- fprintf (asmfile, ",%d,0,0,%s\n",
- N_SO, <ext_label_name[1]);
+ fprintf (asmfile, ",%d,0,0,", N_SO);
+ assemble_name (asmfile, ltext_label_name);
+ fputc ('\n', asmfile);
text_section ();
ASM_OUTPUT_INTERNAL_LABEL (asmfile, "Ltext", 0);
#endif /* no DBX_OUTPUT_MAIN_SOURCE_FILENAME */
#endif
}
+#if defined (DBX_DEBUGGING_INFO)
/* Output debugging info to FILE to switch to sourcefile FILENAME. */
static void
FILE *file;
const char *filename;
{
- char ltext_label_name[100];
-
if (filename && (lastfile == 0 || strcmp (filename, lastfile)))
{
#ifdef DBX_OUTPUT_SOURCE_FILENAME
DBX_OUTPUT_SOURCE_FILENAME (file, filename);
#else
+ char ltext_label_name[100];
+
ASM_GENERATE_INTERNAL_LABEL (ltext_label_name, "Ltext",
source_label_number);
fprintf (file, "%s", ASM_STABS_OP);
output_quoted_string (file, filename);
- fprintf (file, ",%d,0,0,%s\n", N_SOL, <ext_label_name[1]);
+ fprintf (asmfile, ",%d,0,0,", N_SOL);
+ assemble_name (asmfile, ltext_label_name);
+ fputc ('\n', asmfile);
if (current_function_decl != NULL_TREE
&& DECL_SECTION_NAME (current_function_decl) != NULL_TREE)
; /* Don't change section amid function. */
#endif
}
-#if defined (DBX_DEBUGGING_INFO)
-
/* Describe the beginning of an internal block within a function. */
static void
static void
dbxout_type_methods (type)
- register tree type;
+ tree type;
{
/* C++: put out the method names and their parameter lists */
tree methods = TYPE_METHODS (type);
tree type_encoding;
- register tree fndecl;
- register tree last;
+ tree fndecl;
+ tree last;
char formatted_type_identifier_length[16];
- register int type_identifier_length;
+ int type_identifier_length;
if (methods == NULL_TREE)
return;
tree type;
int full;
{
- register tree tem;
+ tree tem;
+ tree main_variant;
static int anonymous_type_number = 0;
if (TREE_CODE (type) == VECTOR_TYPE)
type = integer_type_node;
else
{
- /* Try to find the "main variant" with the same name but not const
- or volatile. (Since stabs does not distinguish const and volatile,
- there is no need to make them separate types. But types with
- different names are usefully distinguished.) */
-
- for (tem = TYPE_MAIN_VARIANT (type); tem; tem = TYPE_NEXT_VARIANT (tem))
- if (!TYPE_READONLY (tem) && !TYPE_VOLATILE (tem)
- && TYPE_NAME (tem) == TYPE_NAME (type))
- {
- type = tem;
- break;
- }
if (TYPE_NAME (type)
&& TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
&& TYPE_DECL_SUPPRESS_DEBUG (TYPE_NAME (type)))
full = 0;
}
+ /* Try to find the "main variant" with the same name. */
+ if (TYPE_NAME (type) && TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
+ && DECL_ORIGINAL_TYPE (TYPE_NAME (type)))
+ main_variant = TREE_TYPE (TYPE_NAME (type));
+ else
+ main_variant = TYPE_MAIN_VARIANT (type);
+
+ /* If we are not using extensions, stabs does not distinguish const and
+ volatile, so there is no need to make them separate types. */
+ if (!use_gnu_debug_info_extensions)
+ type = main_variant;
+
if (TYPE_SYMTAB_ADDRESS (type) == 0)
{
/* Type has no dbx number assigned. Assign next available number. */
typevec[TYPE_SYMTAB_ADDRESS (type)].status = TYPE_DEFINED;
- if (TYPE_NAME (type) && TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
- && DECL_ORIGINAL_TYPE (TYPE_NAME (type)))
- {
+ /* If this type is a variant of some other, hand off. Types with
+ different names are usefully distinguished. We only distinguish
+ cv-qualified types if we're using extensions. */
+ if (TYPE_READONLY (type) > TYPE_READONLY (main_variant))
+ {
+ putc ('k', asmfile);
+ CHARS (1);
+ dbxout_type (build_type_variant (type, 0, TYPE_VOLATILE (type)), 0);
+ return;
+ }
+ else if (TYPE_VOLATILE (type) > TYPE_VOLATILE (main_variant))
+ {
+ putc ('B', asmfile);
+ CHARS (1);
+ dbxout_type (build_type_variant (type, TYPE_READONLY (type), 0), 0);
+ return;
+ }
+ else if (main_variant != TYPE_MAIN_VARIANT (type))
+ {
+ /* 'type' is a typedef; output the type it refers to. */
dbxout_type (DECL_ORIGINAL_TYPE (TYPE_NAME (type)), 0);
return;
}
+ /* else continue. */
switch (TREE_CODE (type))
{
putc (TREE_VIA_VIRTUAL (child) ? '1' : '0', asmfile);
putc (TREE_VIA_PUBLIC (child) ? '2' : '0', asmfile);
CHARS (2);
- print_wide_int (tree_low_cst (BINFO_OFFSET (child), 0)
- * BITS_PER_UNIT);
+ if (TREE_VIA_VIRTUAL (child) && strcmp (lang_hooks.name, "GNU C++") == 0)
+ /* For a virtual base, print the (negative) offset within
+ the vtable where we must look to find the necessary
+ adjustment. */
+ print_wide_int (tree_low_cst (BINFO_VPTR_FIELD (child), 0)
+ * BITS_PER_UNIT);
+ else
+ print_wide_int (tree_low_cst (BINFO_OFFSET (child), 0)
+ * BITS_PER_UNIT);
putc (',', asmfile);
CHARS (1);
dbxout_type (BINFO_TYPE (child), 0);
static void
dbxout_type_name (type)
- register tree type;
+ tree type;
{
tree t;
if (TYPE_NAME (type) == 0)
if (REGNO (value) >= FIRST_PSEUDO_REGISTER)
return 0;
}
- home = alter_subreg (home);
+ home = alter_subreg (&home);
}
if (GET_CODE (home) == REG)
{
we rely on the fact that error_mark_node initializers always
end up in bss for C++ and never end up in bss for C. */
if (DECL_INITIAL (decl) == 0
- || (!strcmp (lang_identify (), "cplusplus")
+ || (!strcmp (lang_hooks.name, "GNU C++")
&& DECL_INITIAL (decl) == error_mark_node))
current_sym_code = N_LCSYM;
else if (DECL_IN_TEXT_SECTION (decl))
current_sym_code = DBX_STATIC_CONST_VAR_CODE;
else
{
+ /* Some ports can transform a symbol ref into a label ref,
+ because the symbol ref is too far away and has to be
+ dumped into a constant pool. Alternatively, the symbol
+ in the constant pool might be referenced by a different
+ symbol. */
+ if (GET_CODE (current_sym_addr) == SYMBOL_REF
+ && CONSTANT_POOL_ADDRESS_P (current_sym_addr))
+ {
+ rtx tmp = get_pool_constant (current_sym_addr);
+
+ if (GET_CODE (tmp) == SYMBOL_REF
+ || GET_CODE (tmp) == LABEL_REF)
+ current_sym_addr = tmp;
+ }
+
/* Ultrix `as' seems to need this. */
#ifdef DBX_STATIC_STAB_DATA_SECTION
data_section ();
{
letter = 'r';
current_sym_code = N_RSYM;
+ if (REGNO (XEXP (home, 0)) >= FIRST_PSEUDO_REGISTER)
+ return 0;
current_sym_value = DBX_REGISTER_NUMBER (REGNO (XEXP (home, 0)));
}
else
passing a float to an unprototyped function, gcc will store a
double on the stack, but if we emit a stab saying the type is a
float, then gdb will only read in a single value, and this will
- produce an erropneous value. */
+ produce an erroneous value. */
dbxout_type (DECL_ARG_TYPE (parms), 0);
current_sym_value = DEBUGGER_ARG_OFFSET (current_sym_value, addr);
dbxout_finish_symbol (parms);
living on the stack. DECL_RTL looks like
(MEM (MEM (PLUS (REG ...) (CONST_INT ...)))) or it
could look like (MEM (MEM (REG))). */
- const char *decl_name = (DECL_NAME (parms)
+ const char *const decl_name = (DECL_NAME (parms)
? IDENTIFIER_POINTER (DECL_NAME (parms))
: "(anon)");
if (GET_CODE (XEXP (XEXP (DECL_RTL (parms), 0), 0)) == REG)
FORCE_TEXT;
fprintf (asmfile, "%s\"%s:v", ASM_STABS_OP, decl_name);
+
+ current_sym_value
+ = DEBUGGER_ARG_OFFSET (current_sym_value,
+ XEXP (XEXP (DECL_RTL (parms), 0), 0));
dbxout_type (TREE_TYPE (parms), 0);
dbxout_finish_symbol (parms);
}
static void
dbxout_block (block, depth, args)
- register tree block;
+ tree block;
int depth;
tree args;
{
did_output = 1;
#else
/* In dbx format, the syms of a block come before the N_LBRAC.
- If nothing is output, we don't need the N_LBRAC, either. */
+ If nothing is output, we don't need the N_LBRAC, either. */
did_output = 0;
if (debug_info_level != DINFO_LEVEL_TERSE || depth == 0)
did_output = dbxout_syms (BLOCK_VARS (block));
Usually this follows the function's code,
but on some systems, it comes before. */
+#if defined (DBX_DEBUGGING_INFO)
static void
dbxout_begin_function (decl)
tree decl;
if (DECL_NAME (DECL_RESULT (decl)) != 0)
dbxout_symbol (DECL_RESULT (decl), 1);
}
+#endif /* DBX_DEBUGGING_INFO */
#endif /* DBX_DEBUGGING_INFO || XCOFF_DEBUGGING_INFO */
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