/* Output dbx-format symbol table information from GNU compiler.
Copyright (C) 1987, 1988, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
- 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
+ 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
This file is part of GCC.
#include "xcoffout.h"
#endif
+#undef DBXOUT_DECR_NESTING
+#define DBXOUT_DECR_NESTING \
+ if (--debug_nesting == 0 && symbol_queue_index > 0) \
+ { emit_pending_bincls_if_required (); debug_flush_symbol_queue (); }
+
+#undef DBXOUT_DECR_NESTING_AND_RETURN
+#define DBXOUT_DECR_NESTING_AND_RETURN(x) \
+ do {--debug_nesting; return (x);} while (0)
+
#ifndef ASM_STABS_OP
#define ASM_STABS_OP "\t.stabs\t"
#endif
#define STABS_GCC_MARKER "gcc2_compiled."
#endif
+#ifndef NO_DBX_FUNCTION_END
+#define NO_DBX_FUNCTION_END 0
+#endif
+
enum typestatus {TYPE_UNSEEN, TYPE_XREF, TYPE_DEFINED};
/* Structure recording information about a C data type.
static GTY(()) int next_type_number;
+/* The C front end may call dbxout_symbol before dbxout_init runs.
+ We save all such decls in this list and output them when we get
+ to dbxout_init. */
+
+static GTY(()) tree preinit_symbols;
+
+enum binclstatus {BINCL_NOT_REQUIRED, BINCL_PENDING, BINCL_PROCESSED};
+
/* When using N_BINCL in dbx output, each type number is actually a
pair of the file number and the type number within the file.
This is a stack of input files. */
-struct dbx_file GTY(())
+struct dbx_file
{
struct dbx_file *next;
int file_number;
int next_type_number;
+ enum binclstatus bincl_status; /* Keep track of lazy bincl. */
+ const char *pending_bincl_name; /* Name of bincl. */
+ struct dbx_file *prev; /* Chain to traverse all pending bincls. */
};
-/* This is the top of the stack. */
-
-static GTY(()) struct dbx_file *current_file;
+/* This is the top of the stack.
+
+ This is not saved for PCH, because restoring a PCH should not change it.
+ next_file_number does have to be saved, because the PCH may use some
+ file numbers; however, just before restoring a PCH, next_file_number
+ should always be 0 because we should not have needed any file numbers
+ yet. */
+
+#if (defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO)) \
+ && defined (DBX_USE_BINCL)
+static struct dbx_file *current_file;
+#endif
/* This is the next file number to use. */
#if defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO)
+#ifdef DBX_USE_BINCL
+/* If zero then there is no pending BINCL. */
+static int pending_bincls = 0;
+#endif
+
/* The original input file name. */
static const char *base_input_file;
/* 1 if PARM is passed to this function in memory. */
#define PARM_PASSED_IN_MEMORY(PARM) \
- (GET_CODE (DECL_INCOMING_RTL (PARM)) == MEM)
+ (MEM_P (DECL_INCOMING_RTL (PARM)))
/* A C expression for the integer offset value of an automatic variable
(N_LSYM) having address X (an RTX). */
#define CONTIN do { } while (0)
#endif
-static void dbxout_init PARAMS ((const char *));
-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_typedefs PARAMS ((tree));
-static void dbxout_fptype_value PARAMS ((tree));
-static void dbxout_type_index PARAMS ((tree));
+#ifdef DBX_USE_BINCL
+static void emit_bincl_stab (const char *c);
+static void emit_pending_bincls (void);
+#endif
+static inline void emit_pending_bincls_if_required (void);
+
+static void dbxout_init (const char *);
+static void dbxout_finish (const char *);
+static void dbxout_start_source_file (unsigned, const char *);
+static void dbxout_end_source_file (unsigned);
+static void dbxout_typedefs (tree);
+static void dbxout_type_index (tree);
#if DBX_CONTIN_LENGTH > 0
-static void dbxout_continue PARAMS ((void));
+static void dbxout_continue (void);
#endif
-static void dbxout_args PARAMS ((tree));
-static void dbxout_type_fields PARAMS ((tree));
-static void dbxout_type_method_1 PARAMS ((tree, const char *));
-static void dbxout_type_methods PARAMS ((tree));
-static void dbxout_range_type PARAMS ((tree));
-static void dbxout_type PARAMS ((tree, int));
-static bool print_int_cst_bounds_in_octal_p PARAMS ((tree));
-static void print_int_cst_octal PARAMS ((tree));
-static void print_octal PARAMS ((unsigned HOST_WIDE_INT, int));
-static void print_wide_int PARAMS ((HOST_WIDE_INT));
-static void dbxout_type_name PARAMS ((tree));
-static void dbxout_class_name_qualifiers PARAMS ((tree));
-static int dbxout_symbol_location PARAMS ((tree, tree, const char *, rtx));
-static void dbxout_symbol_name PARAMS ((tree, const char *, int));
-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_global_decl PARAMS ((tree));
-static void dbxout_handle_pch PARAMS ((unsigned));
+static void dbxout_args (tree);
+static void dbxout_type_fields (tree);
+static void dbxout_type_method_1 (tree, const char *);
+static void dbxout_type_methods (tree);
+static void dbxout_range_type (tree);
+static void dbxout_type (tree, int);
+static bool print_int_cst_bounds_in_octal_p (tree);
+static void print_int_cst_octal (tree);
+static void print_octal (unsigned HOST_WIDE_INT, int);
+static void print_wide_int (HOST_WIDE_INT);
+static void dbxout_type_name (tree);
+static void dbxout_class_name_qualifiers (tree);
+static int dbxout_symbol_location (tree, tree, const char *, rtx);
+static void dbxout_symbol_name (tree, const char *, int);
+static void dbxout_prepare_symbol (tree);
+static void dbxout_finish_symbol (tree);
+static void dbxout_block (tree, int, tree);
+static void dbxout_global_decl (tree);
+static void dbxout_type_decl (tree, int);
+static void dbxout_handle_pch (unsigned);
\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));
+static void dbxout_source_line (unsigned int, const char *);
+static void dbxout_begin_prologue (unsigned int, const char *);
+static void dbxout_source_file (FILE *, const char *);
+static void dbxout_function_end (void);
+static void dbxout_begin_function (tree);
+static void dbxout_begin_block (unsigned, unsigned);
+static void dbxout_end_block (unsigned, unsigned);
+static void dbxout_function_decl (tree);
const struct gcc_debug_hooks dbx_debug_hooks =
{
dbxout_end_source_file,
dbxout_begin_block,
dbxout_end_block,
- debug_true_tree, /* ignore_block */
- dbxout_source_line, /* source_line */
- dbxout_source_line, /* begin_prologue: just output line info */
- debug_nothing_int_charstar, /* end_prologue */
- debug_nothing_int_charstar, /* end_epilogue */
+ debug_true_tree, /* ignore_block */
+ dbxout_source_line, /* source_line */
+ dbxout_begin_prologue, /* begin_prologue */
+ debug_nothing_int_charstar, /* end_prologue */
+ debug_nothing_int_charstar, /* end_epilogue */
#ifdef DBX_FUNCTION_FIRST
dbxout_begin_function,
#else
- debug_nothing_tree, /* begin_function */
+ debug_nothing_tree, /* begin_function */
#endif
- debug_nothing_int, /* end_function */
+ debug_nothing_int, /* end_function */
dbxout_function_decl,
- dbxout_global_decl, /* global_decl */
- debug_nothing_tree, /* deferred_inline_function */
- debug_nothing_tree, /* outlining_inline_function */
- debug_nothing_rtx, /* label */
- dbxout_handle_pch /* handle_pch */
+ dbxout_global_decl, /* global_decl */
+ dbxout_type_decl, /* type_decl */
+ debug_nothing_tree_tree, /* imported_module_or_decl */
+ debug_nothing_tree, /* deferred_inline_function */
+ debug_nothing_tree, /* outlining_inline_function */
+ debug_nothing_rtx, /* label */
+ dbxout_handle_pch, /* handle_pch */
+ debug_nothing_rtx /* var_location */
};
#endif /* DBX_DEBUGGING_INFO */
dbxout_end_source_file,
xcoffout_begin_block,
xcoffout_end_block,
- debug_true_tree, /* ignore_block */
+ debug_true_tree, /* ignore_block */
xcoffout_source_line,
- xcoffout_begin_prologue, /* begin_prologue */
- debug_nothing_int_charstar, /* end_prologue */
+ xcoffout_begin_prologue, /* begin_prologue */
+ debug_nothing_int_charstar, /* end_prologue */
xcoffout_end_epilogue,
- debug_nothing_tree, /* begin_function */
+ debug_nothing_tree, /* begin_function */
xcoffout_end_function,
- debug_nothing_tree, /* function_decl */
- dbxout_global_decl, /* global_decl */
- debug_nothing_tree, /* deferred_inline_function */
- debug_nothing_tree, /* outlining_inline_function */
- debug_nothing_rtx, /* label */
- dbxout_handle_pch /* handle_pch */
+ debug_nothing_tree, /* function_decl */
+ dbxout_global_decl, /* global_decl */
+ dbxout_type_decl, /* type_decl */
+ debug_nothing_tree_tree, /* imported_module_or_decl */
+ debug_nothing_tree, /* deferred_inline_function */
+ debug_nothing_tree, /* outlining_inline_function */
+ debug_nothing_rtx, /* label */
+ dbxout_handle_pch, /* handle_pch */
+ debug_nothing_rtx /* var_location */
};
#endif /* XCOFF_DEBUGGING_INFO */
\f
#if defined (DBX_DEBUGGING_INFO)
static void
-dbxout_function_end ()
+dbxout_function_end (void)
{
char lscope_label_name[100];
+
+ /* The Lscope label must be emitted even if we aren't doing anything
+ else; dbxout_block needs it. */
+ function_section (current_function_decl);
+
/* Convert Ltext into the appropriate format for local labels in case
the system doesn't insert underscores in front of user generated
labels. */
ASM_GENERATE_INTERNAL_LABEL (lscope_label_name, "Lscope", scope_labelno);
- (*targetm.asm_out.internal_label) (asmfile, "Lscope", scope_labelno);
+ targetm.asm_out.internal_label (asmfile, "Lscope", scope_labelno);
scope_labelno++;
+ /* The N_FUN tag at the end of the function is a GNU extension,
+ which may be undesirable, and is unnecessary if we do not have
+ named sections. */
+ if (!use_gnu_debug_info_extensions
+ || NO_DBX_FUNCTION_END
+ || !targetm.have_named_sections)
+ return;
+
/* By convention, GCC will mark the end of a function with an N_FUN
symbol and an empty string. */
#ifdef DBX_OUTPUT_NFUN
assemble_name (asmfile, XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0));
fprintf (asmfile, "\n");
#endif
+
+ if (!flag_debug_only_used_symbols)
+ fprintf (asmfile, "%s%d,0,0\n", ASM_STABD_OP, N_ENSYM);
}
#endif /* DBX_DEBUGGING_INFO */
Initialize `typevec' and output the standard data types of C. */
static void
-dbxout_init (input_file_name)
- const char *input_file_name;
+dbxout_init (const char *input_file_name)
{
char ltext_label_name[100];
- tree syms = (*lang_hooks.decls.getdecls) ();
+ tree syms = lang_hooks.decls.getdecls ();
asmfile = asm_out_file;
typevec_len = 100;
- typevec = (struct typeinfo *) ggc_calloc (typevec_len, sizeof typevec[0]);
+ typevec = ggc_calloc (typevec_len, sizeof typevec[0]);
/* Convert Ltext into the appropriate format for local labels in case
the system doesn't insert underscores in front of user generated
/* Put the current working directory in an N_SO symbol. */
if (use_gnu_debug_info_extensions)
{
- if (!cwd && (cwd = getpwd ()) && (!*cwd || cwd[strlen (cwd) - 1] != '/'))
+ if (!cwd && (cwd = get_src_pwd ())
+ && (!*cwd || cwd[strlen (cwd) - 1] != '/'))
cwd = concat (cwd, FILE_NAME_JOINER, NULL);
if (cwd)
{
assemble_name (asmfile, ltext_label_name);
fputc ('\n', asmfile);
text_section ();
- (*targetm.asm_out.internal_label) (asmfile, "Ltext", 0);
+ targetm.asm_out.internal_label (asmfile, "Ltext", 0);
#endif /* no DBX_OUTPUT_MAIN_SOURCE_FILENAME */
#ifdef DBX_OUTPUT_GCC_MARKER
next_type_number = 1;
#ifdef DBX_USE_BINCL
- current_file = (struct dbx_file *) ggc_alloc (sizeof *current_file);
+ current_file = xmalloc (sizeof *current_file);
current_file->next = NULL;
current_file->file_number = 0;
current_file->next_type_number = 1;
next_file_number = 1;
+ current_file->prev = NULL;
+ current_file->bincl_status = BINCL_NOT_REQUIRED;
+ current_file->pending_bincl_name = NULL;
#endif
- /* Make sure that types `int' and `char' have numbers 1 and 2.
- Definitions of other integer types will refer to those numbers.
- (Actually it should no longer matter what their numbers are.
- Also, if any types with tags have been defined, dbxout_symbol
- will output them first, so the numbers won't be 1 and 2. That
- happens in C++. So it's a good thing it should no longer matter). */
-
-#ifdef DBX_OUTPUT_STANDARD_TYPES
- DBX_OUTPUT_STANDARD_TYPES (syms);
-#else
- dbxout_symbol (TYPE_NAME (integer_type_node), 0);
- dbxout_symbol (TYPE_NAME (char_type_node), 0);
-#endif
-
- /* Get all permanent types that have typedef names,
- and output them all, except for those already output. */
-
+ /* Get all permanent types that have typedef names, and output them
+ all, except for those already output. Some language front ends
+ put these declarations in the top-level scope; some do not;
+ the latter are responsible for calling debug_hooks->type_decl from
+ their record_builtin_type function. */
dbxout_typedefs (syms);
+
+ if (preinit_symbols)
+ {
+ tree t;
+ for (t = nreverse (preinit_symbols); t; t = TREE_CHAIN (t))
+ dbxout_symbol (TREE_VALUE (t), 0);
+ preinit_symbols = 0;
+ }
}
-/* Output any typedef names for types described by TYPE_DECLs in SYMS,
- in the reverse order from that which is found in SYMS. */
+/* Output any typedef names for types described by TYPE_DECLs in SYMS. */
static void
-dbxout_typedefs (syms)
- tree syms;
+dbxout_typedefs (tree syms)
{
- if (syms)
+ for (; syms != NULL_TREE; syms = TREE_CHAIN (syms))
{
- dbxout_typedefs (TREE_CHAIN (syms));
if (TREE_CODE (syms) == TYPE_DECL)
{
tree type = TREE_TYPE (syms);
if (TYPE_NAME (type)
&& TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
- && COMPLETE_TYPE_P (type)
+ && COMPLETE_OR_VOID_TYPE_P (type)
&& ! TREE_ASM_WRITTEN (TYPE_NAME (type)))
dbxout_symbol (TYPE_NAME (type), 0);
}
}
}
+#ifdef DBX_USE_BINCL
+/* Emit BINCL stab using given name. */
+static void
+emit_bincl_stab (const char *name)
+{
+ fprintf (asmfile, "%s", ASM_STABS_OP);
+ output_quoted_string (asmfile, name);
+ fprintf (asmfile, ",%d,0,0,0\n", N_BINCL);
+}
+
+/* If there are pending bincls then it is time to emit all of them. */
+
+static inline void
+emit_pending_bincls_if_required (void)
+{
+ if (pending_bincls)
+ emit_pending_bincls ();
+}
+
+/* Emit all pending bincls. */
+
+static void
+emit_pending_bincls (void)
+{
+ struct dbx_file *f = current_file;
+
+ /* Find first pending bincl. */
+ while (f->bincl_status == BINCL_PENDING)
+ f = f->next;
+
+ /* Now emit all bincls. */
+ f = f->prev;
+
+ while (f)
+ {
+ if (f->bincl_status == BINCL_PENDING)
+ {
+ emit_bincl_stab (f->pending_bincl_name);
+
+ /* Update file number and status. */
+ f->file_number = next_file_number++;
+ f->bincl_status = BINCL_PROCESSED;
+ }
+ if (f == current_file)
+ break;
+ f = f->prev;
+ }
+
+ /* All pending bincls have been emitted. */
+ pending_bincls = 0;
+}
+
+#else
+
+static inline void
+emit_pending_bincls_if_required (void) {}
+#endif
+
/* Change to reading from a new source file. Generate a N_BINCL stab. */
static void
-dbxout_start_source_file (line, filename)
- unsigned int line ATTRIBUTE_UNUSED;
- const char *filename ATTRIBUTE_UNUSED;
+dbxout_start_source_file (unsigned int line ATTRIBUTE_UNUSED,
+ const char *filename ATTRIBUTE_UNUSED)
{
#ifdef DBX_USE_BINCL
- struct dbx_file *n = (struct dbx_file *) ggc_alloc (sizeof *n);
+ struct dbx_file *n = xmalloc (sizeof *n);
n->next = current_file;
- n->file_number = next_file_number++;
n->next_type_number = 1;
+ /* Do not assign file number now.
+ Delay it until we actually emit BINCL. */
+ n->file_number = 0;
+ n->prev = NULL;
+ current_file->prev = n;
+ n->bincl_status = BINCL_PENDING;
+ n->pending_bincl_name = filename;
+ pending_bincls = 1;
current_file = n;
- fprintf (asmfile, "%s", ASM_STABS_OP);
- output_quoted_string (asmfile, filename);
- fprintf (asmfile, ",%d,0,0,0\n", N_BINCL);
#endif
}
/* Revert to reading a previous source file. Generate a N_EINCL stab. */
static void
-dbxout_end_source_file (line)
- unsigned int line ATTRIBUTE_UNUSED;
+dbxout_end_source_file (unsigned int line ATTRIBUTE_UNUSED)
{
#ifdef DBX_USE_BINCL
- fprintf (asmfile, "%s%d,0,0,0\n", ASM_STABN_OP, N_EINCL);
+ /* Emit EINCL stab only if BINCL is not pending. */
+ if (current_file->bincl_status == BINCL_PROCESSED)
+ fprintf (asmfile, "%s%d,0,0,0\n", ASM_STABN_OP, N_EINCL);
+ current_file->bincl_status = BINCL_NOT_REQUIRED;
current_file = current_file->next;
#endif
}
/* Output debugging info to FILE to switch to sourcefile FILENAME. */
static void
-dbxout_source_file (file, filename)
- FILE *file;
- const char *filename;
+dbxout_source_file (FILE *file, const char *filename)
{
if (lastfile == 0 && lastfile_is_base)
{
&& DECL_SECTION_NAME (current_function_decl) != NULL_TREE)
; /* Don't change section amid function. */
else
- text_section ();
- (*targetm.asm_out.internal_label) (file, "Ltext", source_label_number);
+ {
+ if (!in_text_section () && !in_unlikely_text_section ())
+ text_section ();
+ }
+ targetm.asm_out.internal_label (file, "Ltext", source_label_number);
source_label_number++;
lastfile = filename;
}
}
+/* Output N_BNSYM and line number symbol entry. */
+
+static void
+dbxout_begin_prologue (unsigned int lineno, const char *filename)
+{
+ if (use_gnu_debug_info_extensions
+ && !NO_DBX_FUNCTION_END
+ && !flag_debug_only_used_symbols)
+ fprintf (asmfile, "%s%d,0,0\n", ASM_STABD_OP, N_BNSYM);
+
+ dbxout_source_line (lineno, filename);
+}
+
/* Output a line number symbol entry for source file FILENAME and line
number LINENO. */
static void
-dbxout_source_line (lineno, filename)
- unsigned int lineno;
- const char *filename;
+dbxout_source_line (unsigned int lineno, const char *filename)
{
dbxout_source_file (asmfile, filename);
/* Describe the beginning of an internal block within a function. */
static void
-dbxout_begin_block (line, n)
- unsigned int line ATTRIBUTE_UNUSED;
- unsigned int n;
+dbxout_begin_block (unsigned int line ATTRIBUTE_UNUSED, unsigned int n)
{
- (*targetm.asm_out.internal_label) (asmfile, "LBB", n);
+ emit_pending_bincls_if_required ();
+ targetm.asm_out.internal_label (asmfile, "LBB", n);
}
/* Describe the end line-number of an internal block within a function. */
static void
-dbxout_end_block (line, n)
- unsigned int line ATTRIBUTE_UNUSED;
- unsigned int n;
+dbxout_end_block (unsigned int line ATTRIBUTE_UNUSED, unsigned int n)
{
- (*targetm.asm_out.internal_label) (asmfile, "LBE", n);
+ emit_pending_bincls_if_required ();
+ targetm.asm_out.internal_label (asmfile, "LBE", n);
}
/* Output dbx data for a function definition.
(including all the auto variables of the function). */
static void
-dbxout_function_decl (decl)
- tree decl;
+dbxout_function_decl (tree decl)
{
+ emit_pending_bincls_if_required ();
#ifndef DBX_FUNCTION_FIRST
dbxout_begin_function (decl);
#endif
#ifdef DBX_OUTPUT_FUNCTION_END
DBX_OUTPUT_FUNCTION_END (asmfile, decl);
#endif
- if (use_gnu_debug_info_extensions
-#if defined(NO_DBX_FUNCTION_END)
- && ! NO_DBX_FUNCTION_END
-#endif
- && targetm.have_named_sections)
- dbxout_function_end ();
+ dbxout_function_end ();
}
#endif /* DBX_DEBUGGING_INFO */
/* Debug information for a global DECL. Called from toplev.c after
compilation proper has finished. */
static void
-dbxout_global_decl (decl)
- tree decl;
+dbxout_global_decl (tree decl)
{
if (TREE_CODE (decl) == VAR_DECL
&& ! DECL_EXTERNAL (decl)
&& DECL_RTL_SET_P (decl)) /* Not necessary? */
- dbxout_symbol (decl, 0);
+ {
+ int saved_tree_used = TREE_USED (decl);
+ TREE_USED (decl) = 1;
+ dbxout_symbol (decl, 0);
+ TREE_USED (decl) = saved_tree_used;
+ }
+}
+
+/* This is just a function-type adapter; dbxout_symbol does exactly
+ what we want but returns an int. */
+static void
+dbxout_type_decl (tree decl, int local)
+{
+ dbxout_symbol (decl, local);
}
/* At the end of compilation, finish writing the symbol table.
to do nothing. */
static void
-dbxout_finish (filename)
- const char *filename ATTRIBUTE_UNUSED;
+dbxout_finish (const char *filename ATTRIBUTE_UNUSED)
{
#ifdef DBX_OUTPUT_MAIN_SOURCE_FILE_END
DBX_OUTPUT_MAIN_SOURCE_FILE_END (asmfile, filename);
#endif /* DBX_OUTPUT_MAIN_SOURCE_FILE_END */
-}
-
-/* Output floating point type values used by the 'R' stab letter.
- These numbers come from include/aout/stab_gnu.h in binutils/gdb.
-
- There are only 3 real/complex types defined, and we need 7/6.
- We use NF_SINGLE as a generic float type, and NF_COMPLEX as a generic
- complex type. Since we have the type size anyways, we don't really need
- to distinguish between different FP types, we only need to distinguish
- between float and complex. This works fine with gdb.
-
- We only use this for complex types, to avoid breaking backwards
- compatibility for real types. complex types aren't in ISO C90, so it is
- OK if old debuggers don't understand the debug info we emit for them. */
-
-/* ??? These are supposed to be IEEE types, but we don't check for that.
- We could perhaps add additional numbers for non-IEEE types if we need
- them. */
-
-static void
-dbxout_fptype_value (type)
- tree type;
-{
- char value = '0';
- enum machine_mode mode = TYPE_MODE (type);
- if (TREE_CODE (type) == REAL_TYPE)
- {
- if (mode == SFmode)
- value = '1';
- else if (mode == DFmode)
- value = '2';
- else if (mode == TFmode || mode == XFmode)
- value = '6';
- else
- /* Use NF_SINGLE as a generic real type for other sizes. */
- value = '1';
- }
- else if (TREE_CODE (type) == COMPLEX_TYPE)
- {
- if (mode == SCmode)
- value = '3';
- else if (mode == DCmode)
- value = '4';
- else if (mode == TCmode || mode == XCmode)
- value = '5';
- else
- /* Use NF_COMPLEX as a generic complex type for other sizes. */
- value = '3';
- }
- else
- abort ();
-
- putc (value, asmfile);
- CHARS (1);
+ debug_free_queue ();
}
/* Output the index of a type. */
static void
-dbxout_type_index (type)
- tree type;
+dbxout_type_index (tree type)
{
#ifndef DBX_USE_BINCL
fprintf (asmfile, "%d", TYPE_SYMTAB_ADDRESS (type));
.stabs "...rest",code,0,value */
static void
-dbxout_continue ()
+dbxout_continue (void)
{
+ emit_pending_bincls_if_required ();
#ifdef DBX_CONTIN_CHAR
fprintf (asmfile, "%c", DBX_CONTIN_CHAR);
#else
recursive calls. */
static void
-dbxout_type_fields (type)
- tree type;
+dbxout_type_fields (tree type)
{
tree tem;
field that we can support. */
for (tem = TYPE_FIELDS (type); tem; tem = TREE_CHAIN (tem))
{
+ /* If one of the nodes is an error_mark or its type is then
+ return early. */
+ if (tem == error_mark_node || TREE_TYPE (tem) == error_mark_node)
+ return;
+
/* Omit here local type decls until we know how to support them. */
if (TREE_CODE (tem) == TYPE_DECL
/* Omit fields whose position or size are variable or too large to
now. */
static void
-dbxout_type_method_1 (decl, debug_name)
- tree decl;
- const char *debug_name;
+dbxout_type_method_1 (tree decl, const char *debug_name)
{
char c1 = 'A', c2;
in TYPE. */
static void
-dbxout_type_methods (type)
- tree type;
+dbxout_type_methods (tree type)
{
/* C++: put out the method names and their parameter lists */
tree methods = TYPE_METHODS (type);
TYPE is an INTEGER_TYPE. */
static void
-dbxout_range_type (type)
- tree type;
+dbxout_range_type (tree type)
{
fprintf (asmfile, "r");
if (TREE_TYPE (type))
}
}
\f
+
/* Output a reference to a type. If the type has not yet been
described in the dbx output, output its definition now.
For a type already defined, just refer to its definition
using the number previously allocated. */
static void
-dbxout_type (type, full)
- tree type;
- int full;
+dbxout_type (tree type, int full)
{
tree tem;
tree main_variant;
if (next_type_number == typevec_len)
{
typevec
- = (struct typeinfo *) ggc_realloc (typevec,
- (typevec_len * 2
- * sizeof typevec[0]));
- memset ((char *) (typevec + typevec_len), 0,
- typevec_len * sizeof typevec[0]);
+ = ggc_realloc (typevec, (typevec_len * 2 * sizeof typevec[0]));
+ memset (typevec + typevec_len, 0, typevec_len * sizeof typevec[0]);
typevec_len *= 2;
}
#ifdef DBX_USE_BINCL
+ emit_pending_bincls_if_required ();
typevec[TYPE_SYMTAB_ADDRESS (type)].file_number
= current_file->file_number;
typevec[TYPE_SYMTAB_ADDRESS (type)].type_number
#endif
}
+ if (flag_debug_only_used_symbols)
+ {
+ if ((TREE_CODE (type) == RECORD_TYPE
+ || TREE_CODE (type) == UNION_TYPE
+ || TREE_CODE (type) == QUAL_UNION_TYPE
+ || TREE_CODE (type) == ENUMERAL_TYPE)
+ && TYPE_STUB_DECL (type)
+ && TREE_CODE_CLASS (TREE_CODE (TYPE_STUB_DECL (type))) == 'd'
+ && ! DECL_IGNORED_P (TYPE_STUB_DECL (type)))
+ debug_queue_symbol (TYPE_STUB_DECL (type));
+ else if (TYPE_NAME (type)
+ && TREE_CODE (TYPE_NAME (type)) == TYPE_DECL)
+ debug_queue_symbol (TYPE_NAME (type));
+ }
+
/* Output the number of this type, to refer to it. */
dbxout_type_index (type);
}
else if (main_variant != TYPE_MAIN_VARIANT (type))
{
+ if (flag_debug_only_used_symbols)
+ {
+ tree orig_type = DECL_ORIGINAL_TYPE (TYPE_NAME (type));
+
+ if ((TREE_CODE (orig_type) == RECORD_TYPE
+ || TREE_CODE (orig_type) == UNION_TYPE
+ || TREE_CODE (orig_type) == QUAL_UNION_TYPE
+ || TREE_CODE (orig_type) == ENUMERAL_TYPE)
+ && TYPE_STUB_DECL (orig_type)
+ && ! DECL_IGNORED_P (TYPE_STUB_DECL (orig_type)))
+ debug_queue_symbol (TYPE_STUB_DECL (orig_type));
+ }
/* 'type' is a typedef; output the type it refers to. */
dbxout_type (DECL_ORIGINAL_TYPE (TYPE_NAME (type)), 0);
return;
break;
case INTEGER_TYPE:
- if (type == char_type_node && ! TREE_UNSIGNED (type))
+ if (type == char_type_node && ! TYPE_UNSIGNED (type))
{
/* Output the type `char' as a subrange of itself!
I don't understand this definition, just copied it
CHARS (5);
}
- if (print_int_cst_bounds_in_octal_p (type))
+ if (print_int_cst_bounds_in_octal_p (type))
{
fprintf (asmfile, "r");
CHARS (1);
fprintf (asmfile, "r");
CHARS (1);
dbxout_type_index (char_type_node);
- fprintf (asmfile, ";0;%d;", TREE_UNSIGNED (type) ? 255 : 127);
+ fprintf (asmfile, ";0;%d;", TYPE_UNSIGNED (type) ? 255 : 127);
CHARS (7);
}
break;
break;
case COMPLEX_TYPE:
- /* Differs from the REAL_TYPE by its new data type number */
+ /* Differs from the REAL_TYPE by its new data type number.
+ R3 is NF_COMPLEX. We don't try to use any of the other NF_*
+ codes since gdb doesn't care anyway. */
if (TREE_CODE (TREE_TYPE (type)) == REAL_TYPE)
{
- putc ('R', asmfile);
- CHARS (1);
- dbxout_fptype_value (type);
- putc (';', asmfile);
- CHARS (1);
+ fputs ("R3;", asmfile);
+ CHARS (3);
print_wide_int (2 * int_size_in_bytes (TREE_TYPE (type)));
fputs (";0;", asmfile);
CHARS (3);
case UNION_TYPE:
case QUAL_UNION_TYPE:
{
- int i, n_baseclasses = 0;
-
- if (TYPE_BINFO (type) != 0
- && TREE_CODE (TYPE_BINFO (type)) == TREE_VEC
- && TYPE_BINFO_BASETYPES (type) != 0)
- n_baseclasses = TREE_VEC_LENGTH (TYPE_BINFO_BASETYPES (type));
+ tree binfo = TYPE_BINFO (type);
/* Output a structure type. We must use the same test here as we
use in the DBX_NO_XREFS case above. */
CHARS (1);
print_wide_int (int_size_in_bytes (type));
- if (use_gnu_debug_info_extensions)
+ if (binfo)
{
- if (n_baseclasses)
- {
- have_used_extensions = 1;
- fprintf (asmfile, "!%d,", n_baseclasses);
- CHARS (8);
- }
- }
- for (i = 0; i < n_baseclasses; i++)
- {
- tree binfo = TYPE_BINFO (type);
- tree child = BINFO_BASETYPE (binfo, i);
- tree access = (BINFO_BASEACCESSES (binfo)
- ? BINFO_BASEACCESS (binfo, i) : access_public_node);
+ int i;
+ tree child;
+ VEC (tree) *accesses = BINFO_BASE_ACCESSES (binfo);
if (use_gnu_debug_info_extensions)
{
- have_used_extensions = 1;
- putc (TREE_VIA_VIRTUAL (child) ? '1' : '0', asmfile);
- putc (access == access_public_node ? '2' : '0', asmfile);
- CHARS (2);
- 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);
- putc (';', asmfile);
- CHARS (1);
+ if (BINFO_N_BASE_BINFOS (binfo))
+ {
+ have_used_extensions = 1;
+ fprintf (asmfile, "!%u,", BINFO_N_BASE_BINFOS (binfo));
+ CHARS (8);
+ }
}
- else
+ for (i = 0; BINFO_BASE_ITERATE (binfo, i, child); i++)
{
- /* Print out the base class information with fields
- which have the same names at the types they hold. */
- dbxout_type_name (BINFO_TYPE (child));
- putc (':', asmfile);
- CHARS (1);
- dbxout_type (BINFO_TYPE (child), full);
- putc (',', asmfile);
- CHARS (1);
- print_wide_int (tree_low_cst (BINFO_OFFSET (child), 0)
- * BITS_PER_UNIT);
- putc (',', asmfile);
- CHARS (1);
- print_wide_int (tree_low_cst (DECL_SIZE
- (TYPE_NAME
- (BINFO_TYPE (child))),
- 0)
- * BITS_PER_UNIT);
- putc (';', asmfile);
- CHARS (1);
+ tree access = (accesses ? VEC_index (tree, accesses, i)
+ : access_public_node);
+
+ if (use_gnu_debug_info_extensions)
+ {
+ have_used_extensions = 1;
+ putc (BINFO_VIRTUAL_P (child) ? '1' : '0', asmfile);
+ putc (access == access_public_node ? '2' :
+ (access == access_protected_node ? '1' :'0'),
+ asmfile);
+ CHARS (2);
+ if (BINFO_VIRTUAL_P (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);
+ putc (';', asmfile);
+ CHARS (1);
+ }
+ else
+ {
+ /* Print out the base class information with
+ fields which have the same names at the types
+ they hold. */
+ dbxout_type_name (BINFO_TYPE (child));
+ putc (':', asmfile);
+ CHARS (1);
+ dbxout_type (BINFO_TYPE (child), full);
+ putc (',', asmfile);
+ CHARS (1);
+ print_wide_int (tree_low_cst (BINFO_OFFSET (child), 0)
+ * BITS_PER_UNIT);
+ putc (',', asmfile);
+ CHARS (1);
+ print_wide_int
+ (tree_low_cst (TYPE_SIZE (BINFO_TYPE (child)), 0)
+ * BITS_PER_UNIT);
+ putc (';', asmfile);
+ CHARS (1);
+ }
}
}
}
should be printed in octal format. */
static bool
-print_int_cst_bounds_in_octal_p (type)
- tree type;
+print_int_cst_bounds_in_octal_p (tree type)
{
/* If we can use GDB extensions and the size is wider than a long
(the size used by GDB to read them) or we may have trouble writing
the *target's* size of "long", not that of the host. The host test
is just to make sure we can write it out in case the host wide int
is narrower than the target "long".
-
+
For unsigned types, we use octal if they are the same size or larger.
This is because we print the bounds as signed decimal, and hence they
can't span same size unsigned types. */
&& TREE_CODE (TYPE_MAX_VALUE (type)) == INTEGER_CST
&& (TYPE_PRECISION (type) > TYPE_PRECISION (integer_type_node)
|| ((TYPE_PRECISION (type) == TYPE_PRECISION (integer_type_node))
- && TREE_UNSIGNED (type))
+ && TYPE_UNSIGNED (type))
|| TYPE_PRECISION (type) > HOST_BITS_PER_WIDE_INT
|| (TYPE_PRECISION (type) == HOST_BITS_PER_WIDE_INT
- && TREE_UNSIGNED (type))))
+ && TYPE_UNSIGNED (type))))
return TRUE;
else
return FALSE;
handling double precision. */
static void
-print_int_cst_octal (c)
- tree c;
+print_int_cst_octal (tree c)
{
unsigned HOST_WIDE_INT high = TREE_INT_CST_HIGH (c);
unsigned HOST_WIDE_INT low = TREE_INT_CST_LOW (c);
}
static void
-print_octal (value, digits)
- unsigned HOST_WIDE_INT value;
- int digits;
+print_octal (unsigned HOST_WIDE_INT value, int digits)
{
int i;
/* Output C in decimal while adjusting the number of digits written. */
static void
-print_wide_int (c)
- HOST_WIDE_INT c;
+print_wide_int (HOST_WIDE_INT c)
{
int digs = 0;
or by struct, enum and union tags. */
static void
-dbxout_type_name (type)
- tree type;
+dbxout_type_name (tree type)
{
tree t;
if (TYPE_NAME (type) == 0)
type whose scope is limited to a struct or class. */
static void
-dbxout_class_name_qualifiers (decl)
- tree decl;
+dbxout_class_name_qualifiers (tree decl)
{
tree context = decl_type_context (decl);
- if (context != NULL_TREE
+ if (context != NULL_TREE
&& TREE_CODE(context) == RECORD_TYPE
- && TYPE_NAME (context) != 0
+ && TYPE_NAME (context) != 0
&& (TREE_CODE (TYPE_NAME (context)) == IDENTIFIER_NODE
|| (DECL_NAME (TYPE_NAME (context)) != 0)))
{
tree name = TYPE_NAME (context);
+ emit_pending_bincls_if_required ();
+
if (TREE_CODE (name) == TYPE_DECL)
{
dbxout_class_name_qualifiers (name);
Return 1 if a stabs might have been emitted. */
int
-dbxout_symbol (decl, local)
- tree decl;
- int local ATTRIBUTE_UNUSED;
+dbxout_symbol (tree decl, int local ATTRIBUTE_UNUSED)
{
tree type = TREE_TYPE (decl);
tree context = NULL_TREE;
int result = 0;
- /* Cast avoids warning in old compilers. */
- current_sym_code = (STAB_CODE_TYPE) 0;
- current_sym_value = 0;
- current_sym_addr = 0;
+ /* "Intercept" dbxout_symbol() calls like we do all debug_hooks. */
+ ++debug_nesting;
/* Ignore nameless syms, but don't ignore type tags. */
if ((DECL_NAME (decl) == 0 && TREE_CODE (decl) != TYPE_DECL)
|| DECL_IGNORED_P (decl))
- return 0;
+ DBXOUT_DECR_NESTING_AND_RETURN (0);
+
+ /* If we are to generate only the symbols actually used then such
+ symbol nodees are flagged with TREE_USED. Ignore any that
+ aren't flaged as TREE_USED. */
+
+ if (flag_debug_only_used_symbols
+ && (!TREE_USED (decl)
+ && (TREE_CODE (decl) != VAR_DECL || !DECL_INITIAL (decl))))
+ DBXOUT_DECR_NESTING_AND_RETURN (0);
+
+ /* If dbxout_init has not yet run, queue this symbol for later. */
+ if (!typevec)
+ {
+ preinit_symbols = tree_cons (0, decl, preinit_symbols);
+ DBXOUT_DECR_NESTING_AND_RETURN (0);
+ }
+
+ if (flag_debug_only_used_symbols)
+ {
+ tree t;
+
+ /* We now have a used symbol. We need to generate the info for
+ the symbol's type in addition to the symbol itself. These
+ type symbols are queued to be generated after were done with
+ the symbol itself (done because the symbol's info is generated
+ with fprintf's, etc. as it determines what's needed).
+
+ Note, because the TREE_TYPE(type) might be something like a
+ pointer to a named type we need to look for the first name
+ we see following the TREE_TYPE chain. */
+
+ t = type;
+ while (POINTER_TYPE_P (t))
+ t = TREE_TYPE (t);
+
+ /* RECORD_TYPE, UNION_TYPE, QUAL_UNION_TYPE, and ENUMERAL_TYPE
+ need special treatment. The TYPE_STUB_DECL field in these
+ types generally represents the tag name type we want to
+ output. In addition there could be a typedef type with
+ a different name. In that case we also want to output
+ that. */
+
+ if ((TREE_CODE (t) == RECORD_TYPE
+ || TREE_CODE (t) == UNION_TYPE
+ || TREE_CODE (t) == QUAL_UNION_TYPE
+ || TREE_CODE (t) == ENUMERAL_TYPE)
+ && TYPE_STUB_DECL (t)
+ && TYPE_STUB_DECL (t) != decl
+ && TREE_CODE_CLASS (TREE_CODE (TYPE_STUB_DECL (t))) == 'd'
+ && ! DECL_IGNORED_P (TYPE_STUB_DECL (t)))
+ {
+ debug_queue_symbol (TYPE_STUB_DECL (t));
+ if (TYPE_NAME (t)
+ && TYPE_NAME (t) != TYPE_STUB_DECL (t)
+ && TYPE_NAME (t) != decl
+ && TREE_CODE_CLASS (TREE_CODE (TYPE_NAME (t))) == 'd')
+ debug_queue_symbol (TYPE_NAME (t));
+ }
+ else if (TYPE_NAME (t)
+ && TYPE_NAME (t) != decl
+ && TREE_CODE_CLASS (TREE_CODE (TYPE_NAME (t))) == 'd')
+ debug_queue_symbol (TYPE_NAME (t));
+ }
+
+ emit_pending_bincls_if_required ();
dbxout_prepare_symbol (decl);
case FUNCTION_DECL:
if (DECL_RTL (decl) == 0)
- return 0;
+ DBXOUT_DECR_NESTING_AND_RETURN (0);
if (DECL_EXTERNAL (decl))
break;
/* Don't mention a nested function under its parent. */
context = decl_function_context (decl);
if (context == current_function_decl)
break;
- if (GET_CODE (DECL_RTL (decl)) != MEM
+ if (!MEM_P (DECL_RTL (decl))
|| GET_CODE (XEXP (DECL_RTL (decl), 0)) != SYMBOL_REF)
break;
FORCE_TEXT;
break;
case TYPE_DECL:
-#if 0
- /* This seems all wrong. Outputting most kinds of types gives no name
- at all. A true definition gives no name; a cross-ref for a
- structure can give the tag name, but not a type name.
- It seems that no typedef name is defined by outputting a type. */
-
- /* If this typedef name was defined by outputting the type,
- don't duplicate it. */
- if (typevec[TYPE_SYMTAB_ADDRESS (type)].status == TYPE_DEFINED
- && TYPE_NAME (TREE_TYPE (decl)) == decl)
- return 0;
-#endif
/* Don't output the same typedef twice.
And don't output what language-specific stuff doesn't want output. */
if (TREE_ASM_WRITTEN (decl) || TYPE_DECL_SUPPRESS_DEBUG (decl))
- return 0;
+ DBXOUT_DECR_NESTING_AND_RETURN (0);
+ /* Don't output typedefs for types with magic type numbers (XCOFF). */
+#ifdef DBX_ASSIGN_FUNDAMENTAL_TYPE_NUMBER
+ {
+ int fundamental_type_number =
+ DBX_ASSIGN_FUNDAMENTAL_TYPE_NUMBER (decl);
+
+ if (fundamental_type_number != 0)
+ {
+ TREE_ASM_WRITTEN (decl) = 1;
+ TYPE_SYMTAB_ADDRESS (TREE_TYPE (decl)) = fundamental_type_number;
+ DBXOUT_DECR_NESTING_AND_RETURN (0);
+ }
+ }
+#endif
FORCE_TEXT;
result = 1;
{
/* Distinguish the implicit typedefs of C++
from explicit ones that might be found in C. */
&& DECL_ARTIFICIAL (decl)
+ /* Do not generate a tag for incomplete records. */
+ && COMPLETE_TYPE_P (type)
/* Do not generate a tag for records of variable size,
since this type can not be properly described in the
DBX format, and it confuses some tools such as objdump. */
/* Named return value, treat like a VAR_DECL. */
case VAR_DECL:
if (! DECL_RTL_SET_P (decl))
- return 0;
+ DBXOUT_DECR_NESTING_AND_RETURN (0);
/* Don't mention a variable that is external.
Let the file that defines it describe it. */
if (DECL_EXTERNAL (decl))
fprintf (asmfile, "%s\"%s:c=i" HOST_WIDE_INT_PRINT_DEC
"\",0x%x,0,0,0\n",
ASM_STABS_OP, name, ival, N_LSYM);
+ DBXOUT_DECR_NESTING;
return 1;
}
else if (TREE_CODE (TREE_TYPE (decl)) == REAL_TYPE)
{
- /* don't know how to do this yet. */
+ /* Don't know how to do this yet. */
}
break;
}
default:
break;
}
+ DBXOUT_DECR_NESTING;
return result;
}
\f
Returns 1 if the stab was really emitted. */
static int
-dbxout_symbol_location (decl, type, suffix, home)
- tree decl, type;
- const char *suffix;
- rtx home;
+dbxout_symbol_location (tree decl, tree type, const char *suffix, rtx home)
{
int letter = 0;
int regno = -1;
+ emit_pending_bincls_if_required ();
+
/* Don't mention a variable at all
if it was completely optimized into nothingness.
while (GET_CODE (value) == SUBREG)
value = SUBREG_REG (value);
- if (GET_CODE (value) == REG)
+ if (REG_P (value))
{
if (REGNO (value) >= FIRST_PSEUDO_REGISTER)
return 0;
}
home = alter_subreg (&home);
}
- if (GET_CODE (home) == REG)
+ if (REG_P (home))
{
regno = REGNO (home);
if (regno >= FIRST_PSEUDO_REGISTER)
no letter at all, and N_LSYM, for auto variable,
r and N_RSYM for register variable. */
- if (GET_CODE (home) == MEM
+ if (MEM_P (home)
&& GET_CODE (XEXP (home, 0)) == SYMBOL_REF)
{
if (TREE_PUBLIC (decl))
if (GET_CODE (current_sym_addr) == SYMBOL_REF
&& CONSTANT_POOL_ADDRESS_P (current_sym_addr))
{
- rtx tmp = get_pool_constant (current_sym_addr);
+ bool marked;
+ rtx tmp = get_pool_constant_mark (current_sym_addr, &marked);
+
+ if (GET_CODE (tmp) == SYMBOL_REF)
+ {
+ current_sym_addr = tmp;
+ if (CONSTANT_POOL_ADDRESS_P (current_sym_addr))
+ get_pool_constant_mark (current_sym_addr, &marked);
+ else
+ marked = true;
+ }
+ else if (GET_CODE (tmp) == LABEL_REF)
+ {
+ current_sym_addr = tmp;
+ marked = true;
+ }
- if (GET_CODE (tmp) == SYMBOL_REF
- || GET_CODE (tmp) == LABEL_REF)
- current_sym_addr = tmp;
+ /* If all references to the constant pool were optimized
+ out, we just ignore the symbol. */
+ if (!marked)
+ return 0;
}
/* Ultrix `as' seems to need this. */
current_sym_code = N_RSYM;
current_sym_value = DBX_REGISTER_NUMBER (regno);
}
- else if (GET_CODE (home) == MEM
- && (GET_CODE (XEXP (home, 0)) == MEM
- || (GET_CODE (XEXP (home, 0)) == REG
+ else if (MEM_P (home)
+ && (MEM_P (XEXP (home, 0))
+ || (REG_P (XEXP (home, 0))
&& REGNO (XEXP (home, 0)) != HARD_FRAME_POINTER_REGNUM
&& REGNO (XEXP (home, 0)) != STACK_POINTER_REGNUM
#if ARG_POINTER_REGNUM != HARD_FRAME_POINTER_REGNUM
then it means the object is variable-sized and address through
that register or stack slot. DBX has no way to represent this
so all we can do is output the variable as a pointer.
- If it's not a parameter, ignore it.
- (VAR_DECLs like this can be made by integrate.c.) */
+ If it's not a parameter, ignore it. */
{
- if (GET_CODE (XEXP (home, 0)) == REG)
+ if (REG_P (XEXP (home, 0)))
{
letter = 'r';
current_sym_code = N_RSYM;
type = make_node (POINTER_TYPE);
TREE_TYPE (type) = TREE_TYPE (decl);
}
- else if (GET_CODE (home) == MEM
- && GET_CODE (XEXP (home, 0)) == REG)
+ else if (MEM_P (home)
+ && REG_P (XEXP (home, 0)))
{
current_sym_code = N_LSYM;
current_sym_value = DEBUGGER_AUTO_OFFSET (XEXP (home, 0));
}
- else if (GET_CODE (home) == MEM
+ else if (MEM_P (home)
&& GET_CODE (XEXP (home, 0)) == PLUS
&& GET_CODE (XEXP (XEXP (home, 0), 1)) == CONST_INT)
{
We want the value of that CONST_INT. */
current_sym_value = DEBUGGER_AUTO_OFFSET (XEXP (home, 0));
}
- else if (GET_CODE (home) == MEM
+ else if (MEM_P (home)
&& GET_CODE (XEXP (home, 0)) == CONST)
{
/* Handle an obscure case which can arise when optimizing and
else
dbxout_symbol_location (decl, subtype, "$real", XEXP (home, 0));
- /* Cast avoids warning in old compilers. */
- current_sym_code = (STAB_CODE_TYPE) 0;
- current_sym_value = 0;
- current_sym_addr = 0;
dbxout_prepare_symbol (decl);
if (WORDS_BIG_ENDIAN)
Then output LETTER to indicate the kind of location the symbol has. */
static void
-dbxout_symbol_name (decl, suffix, letter)
- tree decl;
- const char *suffix;
- int letter;
+dbxout_symbol_name (tree decl, const char *suffix, int letter)
{
const char *name;
- if (DECL_CONTEXT (decl) && TYPE_P (DECL_CONTEXT (decl)))
- /* One slight hitch: if this is a VAR_DECL which is a static
- class member, we must put out the mangled name instead of the
+ if (DECL_CONTEXT (decl)
+ && (TYPE_P (DECL_CONTEXT (decl))
+ || TREE_CODE (DECL_CONTEXT (decl)) == NAMESPACE_DECL))
+ /* One slight hitch: if this is a VAR_DECL which is a class member
+ or a namespace member, we must put out the mangled name instead of the
DECL_NAME. Note also that static member (variable) names DO NOT begin
with underscores in .stabs directives. */
name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl));
}
static void
-dbxout_prepare_symbol (decl)
- tree decl ATTRIBUTE_UNUSED;
+dbxout_prepare_symbol (tree decl ATTRIBUTE_UNUSED)
{
#ifdef WINNING_GDB
const char *filename = DECL_SOURCE_FILE (decl);
dbxout_source_file (asmfile, filename);
#endif
+
+ /* Initialize variables used to communicate each symbol's debug
+ information to dbxout_finish_symbol with zeroes. */
+
+ /* Cast avoids warning in old compilers. */
+ current_sym_code = (STAB_CODE_TYPE) 0;
+ current_sym_value = 0;
+ current_sym_addr = 0;
}
static void
-dbxout_finish_symbol (sym)
- tree sym;
+dbxout_finish_symbol (tree sym)
{
#ifdef DBX_FINISH_SYMBOL
DBX_FINISH_SYMBOL (sym);
anything was output */
int
-dbxout_syms (syms)
- tree syms;
+dbxout_syms (tree syms)
{
int result = 0;
while (syms)
of all the parms in PARMS, which is a chain of PARM_DECL nodes. */
void
-dbxout_parms (parms)
- tree parms;
+dbxout_parms (tree parms)
{
+ ++debug_nesting;
+
+ emit_pending_bincls_if_required ();
+
for (; parms; parms = TREE_CHAIN (parms))
- if (DECL_NAME (parms) && TREE_TYPE (parms) != error_mark_node)
+ if (DECL_NAME (parms)
+ && TREE_TYPE (parms) != error_mark_node
+ && DECL_RTL_SET_P (parms)
+ && DECL_INCOMING_RTL (parms))
{
dbxout_prepare_symbol (parms);
current_sym_value = DEBUGGER_ARG_OFFSET (current_sym_value, addr);
dbxout_finish_symbol (parms);
}
- else if (GET_CODE (DECL_RTL (parms)) == REG)
+ else if (REG_P (DECL_RTL (parms)))
{
rtx best_rtl;
char regparm_letter;
dbxout_type (parm_type, 0);
dbxout_finish_symbol (parms);
}
- else if (GET_CODE (DECL_RTL (parms)) == MEM
- && GET_CODE (XEXP (DECL_RTL (parms), 0)) == REG
+ else if (MEM_P (DECL_RTL (parms))
+ && REG_P (XEXP (DECL_RTL (parms), 0))
&& REGNO (XEXP (DECL_RTL (parms), 0)) != HARD_FRAME_POINTER_REGNUM
&& REGNO (XEXP (DECL_RTL (parms), 0)) != STACK_POINTER_REGNUM
#if ARG_POINTER_REGNUM != HARD_FRAME_POINTER_REGNUM
dbxout_type (TREE_TYPE (parms), 0);
dbxout_finish_symbol (parms);
}
- else if (GET_CODE (DECL_RTL (parms)) == MEM
- && GET_CODE (XEXP (DECL_RTL (parms), 0)) == MEM)
+ else if (MEM_P (DECL_RTL (parms))
+ && MEM_P (XEXP (DECL_RTL (parms), 0)))
{
/* Parm was passed via invisible reference, with the reference
living on the stack. DECL_RTL looks like
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)
+ if (REG_P (XEXP (XEXP (DECL_RTL (parms), 0), 0)))
current_sym_value = 0;
else
current_sym_value
dbxout_type (TREE_TYPE (parms), 0);
dbxout_finish_symbol (parms);
}
- else if (GET_CODE (DECL_RTL (parms)) == MEM
+ else if (MEM_P (DECL_RTL (parms))
&& XEXP (DECL_RTL (parms), 0) != const0_rtx
/* ??? A constant address for a parm can happen
when the reg it lives in is equiv to a constant in memory.
in which case we want the value of that CONST_INT,
or (MEM (REG ...)),
in which case we use a value of zero. */
- if (GET_CODE (XEXP (DECL_RTL (parms), 0)) == REG)
+ if (REG_P (XEXP (DECL_RTL (parms), 0)))
current_sym_value = 0;
else
current_sym_value
dbxout_finish_symbol (parms);
}
}
+ DBXOUT_DECR_NESTING;
}
/* Output definitions for the places where parms live during the function,
PARMS is a chain of PARM_DECL nodes. */
void
-dbxout_reg_parms (parms)
- tree parms;
+dbxout_reg_parms (tree parms)
{
+ ++debug_nesting;
+
for (; parms; parms = TREE_CHAIN (parms))
if (DECL_NAME (parms) && PARM_PASSED_IN_MEMORY (parms))
{
/* Report parms that live in registers during the function
but were passed in memory. */
- if (GET_CODE (DECL_RTL (parms)) == REG
+ if (REG_P (DECL_RTL (parms))
&& REGNO (DECL_RTL (parms)) < FIRST_PSEUDO_REGISTER)
dbxout_symbol_location (parms, TREE_TYPE (parms),
0, DECL_RTL (parms));
dbxout_symbol_location (parms, TREE_TYPE (parms),
0, DECL_RTL (parms));
/* Report parms that live in memory but not where they were passed. */
- else if (GET_CODE (DECL_RTL (parms)) == MEM
+ else if (MEM_P (DECL_RTL (parms))
&& ! rtx_equal_p (DECL_RTL (parms), DECL_INCOMING_RTL (parms)))
dbxout_symbol_location (parms, TREE_TYPE (parms),
0, DECL_RTL (parms));
}
+ DBXOUT_DECR_NESTING;
}
\f
/* Given a chain of ..._TYPE nodes (as come in a parameter list),
output definitions of those names, in raw form */
static void
-dbxout_args (args)
- tree args;
+dbxout_args (tree args)
{
while (args)
{
}
}
\f
+/* Subroutine of dbxout_block. Emit an N_LBRAC stab referencing LABEL.
+ BEGIN_LABEL is the name of the beginning of the function, which may
+ be required. */
+static void
+dbx_output_lbrac (const char *label,
+ const char *begin_label ATTRIBUTE_UNUSED)
+{
+#ifdef DBX_OUTPUT_LBRAC
+ DBX_OUTPUT_LBRAC (asmfile, label);
+#else
+ fprintf (asmfile, "%s%d,0,0,", ASM_STABN_OP, N_LBRAC);
+ assemble_name (asmfile, label);
+#if DBX_BLOCKS_FUNCTION_RELATIVE
+ putc ('-', asmfile);
+ assemble_name (asmfile, begin_label);
+#endif
+ fprintf (asmfile, "\n");
+#endif
+}
+
+/* Subroutine of dbxout_block. Emit an N_RBRAC stab referencing LABEL.
+ BEGIN_LABEL is the name of the beginning of the function, which may
+ be required. */
+static void
+dbx_output_rbrac (const char *label,
+ const char *begin_label ATTRIBUTE_UNUSED)
+{
+#ifdef DBX_OUTPUT_RBRAC
+ DBX_OUTPUT_RBRAC (asmfile, label);
+#else
+ fprintf (asmfile, "%s%d,0,0,", ASM_STABN_OP, N_RBRAC);
+ assemble_name (asmfile, label);
+#if DBX_BLOCKS_FUNCTION_RELATIVE
+ putc ('-', asmfile);
+ assemble_name (asmfile, begin_label);
+#endif
+ fprintf (asmfile, "\n");
+#endif
+}
+
/* Output everything about a symbol block (a BLOCK node
that represents a scope level),
including recursive output of contained blocks.
We handle them all in sequence. */
static void
-dbxout_block (block, depth, args)
- tree block;
- int depth;
- tree args;
+dbxout_block (tree block, int depth, tree args)
{
- int blocknum = -1;
-
-#if DBX_BLOCKS_FUNCTION_RELATIVE
const char *begin_label;
if (current_function_func_begin_label != NULL_TREE)
begin_label = IDENTIFIER_POINTER (current_function_func_begin_label);
else
begin_label = XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0);
-#endif
while (block)
{
if (TREE_USED (block) && TREE_ASM_WRITTEN (block))
{
int did_output;
+ int blocknum = BLOCK_NUMBER (block);
/* 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. */
the block. Use the block's tree-walk order to generate
the assembler symbols LBBn and LBEn
that final will define around the code in this block. */
- if (depth > 0 && did_output)
+ if (did_output)
{
char buf[20];
- blocknum = BLOCK_NUMBER (block);
- ASM_GENERATE_INTERNAL_LABEL (buf, "LBB", blocknum);
+ const char *scope_start;
+
+ if (depth == 0)
+ /* The outermost block doesn't get LBB labels; use
+ the function symbol. */
+ scope_start = begin_label;
+ else
+ {
+ ASM_GENERATE_INTERNAL_LABEL (buf, "LBB", blocknum);
+ scope_start = buf;
+ }
if (BLOCK_HANDLER_BLOCK (block))
{
{
fprintf (asmfile, "%s\"%s:C1\",%d,0,0,", ASM_STABS_OP,
IDENTIFIER_POINTER (DECL_NAME (decl)), N_CATCH);
- assemble_name (asmfile, buf);
+ assemble_name (asmfile, scope_start);
fprintf (asmfile, "\n");
decl = TREE_CHAIN (decl);
}
}
-
-#ifdef DBX_OUTPUT_LBRAC
- DBX_OUTPUT_LBRAC (asmfile, buf);
-#else
- fprintf (asmfile, "%s%d,0,0,", ASM_STABN_OP, N_LBRAC);
- assemble_name (asmfile, buf);
-#if DBX_BLOCKS_FUNCTION_RELATIVE
- putc ('-', asmfile);
- assemble_name (asmfile, begin_label);
-#endif
- fprintf (asmfile, "\n");
-#endif
+ dbx_output_lbrac (scope_start, begin_label);
}
/* Output the subblocks. */
dbxout_block (BLOCK_SUBBLOCKS (block), depth + 1, NULL_TREE);
/* Refer to the marker for the end of the block. */
- if (depth > 0 && did_output)
+ if (did_output)
{
- char buf[20];
- ASM_GENERATE_INTERNAL_LABEL (buf, "LBE", blocknum);
-#ifdef DBX_OUTPUT_RBRAC
- DBX_OUTPUT_RBRAC (asmfile, buf);
-#else
- fprintf (asmfile, "%s%d,0,0,", ASM_STABN_OP, N_RBRAC);
- assemble_name (asmfile, buf);
-#if DBX_BLOCKS_FUNCTION_RELATIVE
- putc ('-', asmfile);
- assemble_name (asmfile, begin_label);
-#endif
- fprintf (asmfile, "\n");
-#endif
+ char buf[100];
+ if (depth == 0)
+ /* The outermost block doesn't get LBE labels;
+ use the "scope" label which will be emitted
+ by dbxout_function_end. */
+ ASM_GENERATE_INTERNAL_LABEL (buf, "Lscope", scope_labelno);
+ else
+ ASM_GENERATE_INTERNAL_LABEL (buf, "LBE", blocknum);
+
+ dbx_output_rbrac (buf, begin_label);
}
}
block = BLOCK_CHAIN (block);
#if defined (DBX_DEBUGGING_INFO)
static void
-dbxout_begin_function (decl)
- tree decl;
+dbxout_begin_function (tree decl)
{
- dbxout_symbol (decl, 0);
+ int saved_tree_used1 = TREE_USED (decl);
+ TREE_USED (decl) = 1;
+ if (DECL_NAME (DECL_RESULT (decl)) != 0)
+ {
+ int saved_tree_used2 = TREE_USED (DECL_RESULT (decl));
+ TREE_USED (DECL_RESULT (decl)) = 1;
+ dbxout_symbol (decl, 0);
+ TREE_USED (DECL_RESULT (decl)) = saved_tree_used2;
+ }
+ else
+ dbxout_symbol (decl, 0);
+ TREE_USED (decl) = saved_tree_used1;
+
dbxout_parms (DECL_ARGUMENTS (decl));
if (DECL_NAME (DECL_RESULT (decl)) != 0)
dbxout_symbol (DECL_RESULT (decl), 1);
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