/* Output dbx-format symbol table information from GNU compiler.
- Copyright (C) 1987, 1988, 1992 Free Software Foundation, Inc.
+ Copyright (C) 1987, 88, 92-96, 1997 Free Software Foundation, Inc.
This file is part of GNU CC.
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, 675 Mass Ave, Cambridge, MA 02139, USA. */
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
/* Output dbx-format symbol table data.
#include "insn-config.h"
#include "reload.h"
#include "defaults.h"
+#include "output.h" /* ASM_OUTPUT_SOURCE_LINE may refer to sdb functions. */
#ifndef errno
extern int errno;
#define DBX_REGPARM_STABS_LETTER 'P'
#endif
+/* This is used for parameters passed by invisible reference in a register. */
+#ifndef GDB_INV_REF_REGPARM_STABS_LETTER
+#define GDB_INV_REF_REGPARM_STABS_LETTER 'a'
+#endif
+
#ifndef DBX_MEMPARM_STABS_LETTER
#define DBX_MEMPARM_STABS_LETTER 'p'
#endif
+#ifndef FILE_NAME_JOINER
+#define FILE_NAME_JOINER "/"
+#endif
+
/* Nonzero means if the type has methods, only output debugging
- information if methods are actually written to the asm file. */
+ information if methods are actually written to the asm file. This
+ optimization only works if the debugger can detect the special C++
+ marker. */
+
+#define MINIMAL_DEBUG 1
-static int flag_minimal_debug = 1;
+#ifdef NO_DOLLAR_IN_LABEL
+#ifdef NO_DOT_IN_LABEL
+#undef MINIMAL_DEBUG
+#define MINIMAL_DEBUG 0
+#endif
+#endif
+
+static int flag_minimal_debug = MINIMAL_DEBUG;
/* Nonzero if we have actually used any of the GDB extensions
to the debugging format. The idea is that we use them for the
static int have_used_extensions = 0;
+/* Number for the next N_SOL filename stabs label. The number 0 is reserved
+ for the N_SO filename stabs label. */
+
+static int source_label_number = 1;
+
+static int scope_labelno = 0;
+
char *getpwd ();
/* Typical USG systems don't have stab.h, and they also have
#define FORCE_TEXT
#endif
-#if defined (USG) || defined (NO_STAB_H)
+#if defined (USG) || defined (NO_STAB_H) || defined (CROSS_COMPILE)
#include "gstab.h" /* If doing DBX on sysV, use our own stab.h. */
#else
#include <stab.h> /* On BSD, use the system's stab.h. */
enum typestatus {TYPE_UNSEEN, TYPE_XREF, TYPE_DEFINED};
-/* Vector recording the status of describing C data types.
+/* Structure recording information about a C data type.
+ The status element says whether we have yet output
+ the definition of the type. TYPE_XREF says we have
+ output it as a cross-reference only.
+ The file_number and type_number elements are used if DBX_USE_BINCL
+ is defined. */
+
+struct typeinfo
+{
+ enum typestatus status;
+#ifdef DBX_USE_BINCL
+ int file_number;
+ int type_number;
+#endif
+};
+
+/* Vector recording information about C data types.
When we first notice a data type (a tree node),
we assign it a number using next_type_number.
- That is its index in this vector.
- The vector element says whether we have yet output
- the definition of the type. TYPE_XREF says we have
- output it as a cross-reference only. */
+ That is its index in this vector. */
-enum typestatus *typevec;
+struct typeinfo *typevec;
/* Number of elements of space allocated in `typevec'. */
static int next_type_number;
+#ifdef DBX_USE_BINCL
+
+/* 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
+{
+ struct dbx_file *next;
+ int file_number;
+ int next_type_number;
+};
+
+/* This is the top of the stack. */
+
+static struct dbx_file *current_file;
+
+/* This is the next file number to use. */
+
+static int next_file_number;
+
+#endif /* DBX_USE_BINCL */
+
/* In dbx output, we must assign symbol-blocks id numbers
in the order in which their beginnings are encountered.
We output debugging info that refers to the beginning and
void dbxout_types ();
void dbxout_args ();
void dbxout_symbol ();
-static void dbxout_type_name ();
-static void dbxout_type ();
-static void dbxout_typedefs ();
-static void dbxout_prepare_symbol ();
-static void dbxout_finish_symbol ();
-static void dbxout_continue ();
-static void print_int_cst_octal ();
-static void print_octal ();
+
+static void dbxout_function_end PROTO((void));
+static void dbxout_typedefs PROTO((tree));
+static void dbxout_type_index PROTO((tree));
+static void dbxout_continue PROTO((void));
+static void dbxout_type_fields PROTO((tree));
+static void dbxout_type_method_1 PROTO((tree, char *));
+static void dbxout_type_methods PROTO((tree));
+static void dbxout_range_type PROTO((tree));
+static void dbxout_type PROTO((tree, int, int));
+static void print_int_cst_octal PROTO((tree));
+static void print_octal PROTO((unsigned HOST_WIDE_INT, int));
+static void dbxout_type_name PROTO((tree));
+static void dbxout_symbol_location PROTO((tree, tree, char *, rtx));
+static void dbxout_symbol_name PROTO((tree, char *, int));
+static void dbxout_prepare_symbol PROTO((tree));
+static void dbxout_finish_symbol PROTO((tree));
+static void dbxout_block PROTO((tree, int, tree));
+static void dbxout_really_begin_function PROTO((tree));
\f
-#if 0 /* Not clear we will actually need this. */
-
-/* Return the absolutized filename for the given relative
- filename. Note that if that filename is already absolute, it may
- still be returned in a modified form because this routine also
- eliminates redundant slashes and single dots and eliminates double
- dots to get a shortest possible filename from the given input
- filename. The absolutization of relative filenames is made by
- assuming that the given filename is to be taken as relative to
- the first argument (cwd) or to the current directory if cwd is
- NULL. */
-
-static char *
-abspath (rel_filename)
- char *rel_filename;
+static void
+dbxout_function_end ()
{
- /* Setup the current working directory as needed. */
- char *abs_buffer
- = (char *) alloca (strlen (cwd) + strlen (rel_filename) + 1);
- char *endp = abs_buffer;
- char *outp, *inp;
- char *value;
-
- /* Copy the filename (possibly preceded by the current working
- directory name) into the absolutization buffer. */
-
- {
- char *src_p;
-
- if (rel_filename[0] != '/')
- {
- src_p = cwd;
- while (*endp++ = *src_p++)
- continue;
- *(endp-1) = '/'; /* overwrite null */
- }
- src_p = rel_filename;
- while (*endp++ = *src_p++)
- continue;
- if (endp[-1] == '/')
- *endp = '\0';
-
- /* Now make a copy of abs_buffer into abs_buffer, shortening the
- filename (by taking out slashes and dots) as we go. */
-
- outp = inp = abs_buffer;
- *outp++ = *inp++; /* copy first slash */
- for (;;)
- {
- if (!inp[0])
- break;
- else if (inp[0] == '/' && outp[-1] == '/')
- {
- inp++;
- continue;
- }
- else if (inp[0] == '.' && outp[-1] == '/')
- {
- if (!inp[1])
- break;
- else if (inp[1] == '/')
- {
- inp += 2;
- continue;
- }
- else if ((inp[1] == '.') && (inp[2] == 0 || inp[2] == '/'))
- {
- inp += (inp[2] == '/') ? 3 : 2;
- outp -= 2;
- while (outp >= abs_buffer && *outp != '/')
- outp--;
- if (outp < abs_buffer)
- {
- /* Catch cases like /.. where we try to backup to a
- point above the absolute root of the logical file
- system. */
-
- fprintf (stderr, "%s: invalid file name: %s\n",
- pname, rel_filename);
- exit (1);
- }
- *++outp = '\0';
- continue;
- }
- }
- *outp++ = *inp++;
- }
-
- /* On exit, make sure that there is a trailing null, and make sure that
- the last character of the returned string is *not* a slash. */
-
- *outp = '\0';
- if (outp[-1] == '/')
- *--outp = '\0';
-
- /* Make a copy (in the heap) of the stuff left in the absolutization
- buffer and return a pointer to the copy. */
-
- value = (char *) oballoc (strlen (abs_buffer) + 1);
- strcpy (value, abs_buffer);
- return value;
+ char lscope_label_name[100];
+ /* 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);
+ ASM_OUTPUT_INTERNAL_LABEL (asmfile, "Lscope", scope_labelno);
+ scope_labelno++;
+
+ /* By convention, GCC will mark the end of a function with an N_FUN
+ symbol and an empty string. */
+ fprintf (asmfile, "%s \"\",%d,0,0,", ASM_STABS_OP, N_FUN);
+ assemble_name (asmfile, lscope_label_name);
+ fputc ('-', asmfile);
+ assemble_name (asmfile, XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0));
+ fprintf (asmfile, "\n");
}
-#endif /* 0 */
-\f
+
/* At the beginning of compilation, start writing the symbol table.
Initialize `typevec' and output the standard data types of C. */
asmfile = asm_file;
typevec_len = 100;
- typevec = (enum typestatus *) xmalloc (typevec_len * sizeof typevec[0]);
- bzero (typevec, typevec_len * sizeof typevec[0]);
+ typevec = (struct typeinfo *) xmalloc (typevec_len * sizeof typevec[0]);
+ bzero ((char *) typevec, 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
if (use_gnu_debug_info_extensions)
#endif
{
- if (cwd || (cwd = getpwd ()))
+ if (!cwd && (cwd = getpwd ()) && (!*cwd || cwd[strlen (cwd) - 1] != '/'))
+ {
+ char *wdslash = xmalloc (strlen (cwd) + sizeof (FILE_NAME_JOINER));
+ sprintf (wdslash, "%s%s", cwd, FILE_NAME_JOINER);
+ cwd = wdslash;
+ }
+ if (cwd)
{
#ifdef DBX_OUTPUT_MAIN_SOURCE_DIRECTORY
DBX_OUTPUT_MAIN_SOURCE_DIRECTORY (asmfile, cwd);
#else /* no DBX_OUTPUT_MAIN_SOURCE_DIRECTORY */
- fprintf (asmfile, "%s \"%s/\",%d,0,0,%s\n", ASM_STABS_OP,
- cwd, N_SO, <ext_label_name[1]);
+ fprintf (asmfile, "%s ", ASM_STABS_OP);
+ output_quoted_string (asmfile, cwd);
+ fprintf (asmfile, ",%d,0,0,%s\n", N_SO, <ext_label_name[1]);
#endif /* no DBX_OUTPUT_MAIN_SOURCE_DIRECTORY */
}
}
/* We include outputting `Ltext:' here,
because that gives you a way to override it. */
/* Used to put `Ltext:' before the reference, but that loses on sun 4. */
- fprintf (asmfile, "%s \"%s\",%d,0,0,%s\n", ASM_STABS_OP, input_file_name,
+ 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]);
text_section ();
ASM_OUTPUT_INTERNAL_LABEL (asmfile, "Ltext", 0);
next_type_number = 1;
next_block_number = 2;
+#ifdef DBX_USE_BINCL
+ current_file = (struct dbx_file *) xmalloc (sizeof *current_file);
+ current_file->next = NULL;
+ current_file->file_number = 0;
+ current_file->next_type_number = 1;
+ next_file_number = 1;
+#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.
tree type = TREE_TYPE (syms);
if (TYPE_NAME (type)
&& TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
+ && TYPE_SIZE (type) != NULL_TREE
&& ! TREE_ASM_WRITTEN (TYPE_NAME (type)))
dbxout_symbol (TYPE_NAME (type), 0);
}
}
}
+/* Change to reading from a new source file. Generate a N_BINCL stab. */
+
+void
+dbxout_start_new_source_file (filename)
+ char *filename;
+{
+#ifdef DBX_USE_BINCL
+ struct dbx_file *n = (struct dbx_file *) xmalloc (sizeof *n);
+
+ n->next = current_file;
+ n->file_number = next_file_number++;
+ n->next_type_number = 1;
+ current_file = n;
+ fprintf (asmfile, "%s \"%s\",%d,0,0,0\n", ASM_STABS_OP, filename, N_BINCL);
+#endif
+}
+
+/* Revert to reading a previous source file. Generate a N_EINCL stab. */
+
+void
+dbxout_resume_previous_source_file ()
+{
+#ifdef DBX_USE_BINCL
+ struct dbx_file *next;
+
+ fprintf (asmfile, "%s %d,0,0,0\n", ASM_STABN_OP, N_EINCL);
+ next = current_file->next;
+ free (current_file);
+ current_file = next;
+#endif
+}
+
/* Output debugging info to FILE to switch to sourcefile FILENAME. */
void
#ifdef DBX_OUTPUT_SOURCE_FILENAME
DBX_OUTPUT_SOURCE_FILENAME (file, filename);
#else
- ASM_GENERATE_INTERNAL_LABEL (ltext_label_name, "Ltext", 0);
- fprintf (file, "%s \"%s\",%d,0,0,%s\n", ASM_STABS_OP,
- filename, N_SOL, <ext_label_name[1]);
+ 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]);
+ if (current_function_decl != NULL_TREE
+ && DECL_SECTION_NAME (current_function_decl) != NULL_TREE)
+ ; /* Don't change section amid function. */
+ else
+ text_section ();
+ ASM_OUTPUT_INTERNAL_LABEL (file, "Ltext", source_label_number);
+ source_label_number++;
#endif
lastfile = filename;
}
/* At the end of compilation, finish writing the symbol table.
Unless you define DBX_OUTPUT_MAIN_SOURCE_FILE_END, the default is
- to do nothing. */
+ to do nothing. */
void
dbxout_finish (file, filename)
#endif /* DBX_OUTPUT_MAIN_SOURCE_FILE_END */
}
+/* Output the index of a type. */
+
+static void
+dbxout_type_index (type)
+ tree type;
+{
+#ifndef DBX_USE_BINCL
+ fprintf (asmfile, "%d", TYPE_SYMTAB_ADDRESS (type));
+ CHARS (3);
+#else
+ struct typeinfo *t = &typevec[TYPE_SYMTAB_ADDRESS (type)];
+ fprintf (asmfile, "(%d,%d)", t->file_number, t->type_number);
+ CHARS (7);
+#endif
+}
+
/* Continue a symbol-description that gets too big.
End one symbol table entry with a double-backslash
and start a new one, eventually producing something like
tree type;
{
tree tem;
+ /* Output the name, type, position (in bits), size (in bits) of each
+ field. */
for (tem = TYPE_FIELDS (type); tem; tem = TREE_CHAIN (tem))
{
- /* Output the name, type, position (in bits), size (in bits)
- of each field. */
- if (DECL_NAME (tem) == NULL_TREE
- && TREE_CODE (TREE_TYPE (tem)) == UNION_TYPE)
- dbxout_type_fields (TREE_TYPE (tem));
/* Omit here local type decls until we know how to support them. */
- else if (TREE_CODE (tem) == TYPE_DECL)
+ if (TREE_CODE (tem) == TYPE_DECL)
+ continue;
+ /* Omit fields whose position or size are variable. */
+ else if (TREE_CODE (tem) == FIELD_DECL
+ && (TREE_CODE (DECL_FIELD_BITPOS (tem)) != INTEGER_CST
+ || TREE_CODE (DECL_SIZE (tem)) != INTEGER_CST))
continue;
/* Omit here the nameless fields that are used to skip bits. */
- else if (DECL_NAME (tem) != 0 && TREE_CODE (tem) != CONST_DECL)
+ else if (TREE_CODE (tem) != CONST_DECL)
{
/* Continue the line if necessary,
but not before the first field. */
&& DECL_ASSEMBLER_NAME (tem))
{
have_used_extensions = 1;
- CHARS (3 + IDENTIFIER_LENGTH (DECL_NAME (TYPE_NAME (DECL_FCONTEXT (tem)))));
+ CHARS (3 + IDENTIFIER_LENGTH (DECL_ASSEMBLER_NAME (tem)));
fputs (IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (tem)), asmfile);
dbxout_type (DECL_FCONTEXT (tem), 0, 0);
fprintf (asmfile, ":");
continue;
}
- fprintf (asmfile, "%s:", IDENTIFIER_POINTER (DECL_NAME (tem)));
- CHARS (2 + IDENTIFIER_LENGTH (DECL_NAME (tem)));
+ if (DECL_NAME (tem))
+ {
+ fprintf (asmfile, "%s:", IDENTIFIER_POINTER (DECL_NAME (tem)));
+ CHARS (2 + IDENTIFIER_LENGTH (DECL_NAME (tem)));
+ }
+ else
+ {
+ fprintf (asmfile, ":");
+ CHARS (2);
+ }
if (use_gnu_debug_info_extensions
&& (TREE_PRIVATE (tem) || TREE_PROTECTED (tem)
TREE_INT_CST_LOW (DECL_FIELD_BITPOS (tem)),
TREE_INT_CST_LOW (DECL_SIZE (tem)));
}
- else
- /* This has yet to be implemented. */
- abort ();
CHARS (23);
}
}
tree decl;
char *debug_name;
{
- tree firstarg = TREE_VALUE (TYPE_ARG_TYPES (TREE_TYPE (decl)));
char c1 = 'A', c2;
if (TREE_CODE (TREE_TYPE (decl)) == FUNCTION_TYPE)
c2 = '?';
else /* it's a METHOD_TYPE. */
{
+ tree firstarg = TREE_VALUE (TYPE_ARG_TYPES (TREE_TYPE (decl)));
/* A for normal functions.
B for `const' member functions.
C for `volatile' member functions.
type_encoding = DECL_NAME (TYPE_NAME (type));
+#if 0
/* C++: Template classes break some assumptions made by this code about
the class names, constructor names, and encodings for assembler
label names. For now, disable output of dbx info for them. */
if (!warned)
{
warned = 1;
- warning ("dbx info for template class methods not yet supported");
+#ifdef HAVE_TEMPLATES
+ if (warn_template_debugging)
+ warning ("dbx info for template class methods not yet supported");
+#endif
}
return;
}
}
+#endif
type_identifier_length = IDENTIFIER_LENGTH (type_encoding);
/* This is the "mangled" name of the method.
It encodes the argument types. */
char *debug_name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (fndecl));
- int destructor = 0;
+ int show_arg_types = 0;
CONTIN;
if (flag_minimal_debug)
{
+ char marker;
+
+ /* We can't optimize a method which uses an anonymous
+ class, because the debugger will not be able to
+ associate the arbitrary class name with the actual
+ class. */
+#ifndef NO_DOLLAR_IN_LABEL
+ marker = '$';
+#else
+ marker = '.';
+#endif
+ if (strchr (debug_name, marker))
+ show_arg_types = 1;
/* Detect ordinary methods because their mangled names
start with the operation name. */
- if (!strncmp (IDENTIFIER_POINTER (name), debug_name,
- IDENTIFIER_LENGTH (name)))
+ else if (!strncmp (IDENTIFIER_POINTER (name), debug_name,
+ IDENTIFIER_LENGTH (name)))
{
debug_name += IDENTIFIER_LENGTH (name);
if (debug_name[0] == '_' && debug_name[1] == '_')
/* Get past const and volatile qualifiers. */
while (*method_name == 'C' || *method_name == 'V')
method_name++;
- /* Skip digits for length of type_encoding. */
+ /* Skip digits for length of type_encoding. */
while (*method_name == *length_ptr && *length_ptr)
length_ptr++, method_name++;
if (! strncmp (method_name,
char *length_ptr = formatted_type_identifier_length;
while (*ctor_name == 'C' || *ctor_name == 'V')
ctor_name++;
- /* Skip digits for length of type_encoding. */
+ /* Skip digits for length of type_encoding. */
while (*ctor_name == *length_ptr && *length_ptr)
length_ptr++, ctor_name++;
if (!strncmp (IDENTIFIER_POINTER (type_encoding), ctor_name,
}
/* The other alternative is a destructor. */
else
- destructor = 1;
+ show_arg_types = 1;
/* Output the operation name just once, for the first method
that we output. */
}
}
- dbxout_type (TREE_TYPE (fndecl), 0, destructor);
+ dbxout_type (TREE_TYPE (fndecl), 0, show_arg_types);
dbxout_type_method_1 (fndecl, debug_name);
}
}
}
}
+
+/* Emit a "range" type specification, which has the form:
+ "r<index type>;<lower bound>;<upper bound>;".
+ TYPE is an INTEGER_TYPE. */
+
+static void
+dbxout_range_type (type)
+ tree type;
+{
+ fprintf (asmfile, "r");
+ if (TREE_TYPE (type))
+ dbxout_type (TREE_TYPE (type), 0, 0);
+ else if (TREE_CODE (type) != INTEGER_TYPE)
+ dbxout_type (type, 0, 0); /* E.g. Pascal's ARRAY [BOOLEAN] of INTEGER */
+ else
+ {
+ /* Traditionally, we made sure 'int' was type 1, and builtin types
+ were defined to be sub-ranges of int. Unfortunately, this
+ does not allow us to distinguish true sub-ranges from integer
+ types. So, instead we define integer (non-sub-range) types as
+ sub-ranges of themselves. */
+ dbxout_type_index (type);
+ }
+ if (TREE_CODE (TYPE_MIN_VALUE (type)) == INTEGER_CST)
+ fprintf (asmfile, ";%d",
+ TREE_INT_CST_LOW (TYPE_MIN_VALUE (type)));
+ else
+ fprintf (asmfile, ";0");
+ if (TREE_CODE (TYPE_MAX_VALUE (type)) == INTEGER_CST)
+ fprintf (asmfile, ";%d;",
+ TREE_INT_CST_LOW (TYPE_MAX_VALUE (type)));
+ else
+ fprintf (asmfile, ";-1;");
+}
\f
/* Output a reference to a type. If the type has not yet been
described in the dbx output, output its definition now.
int show_arg_types;
{
register tree tem;
+ static int anonymous_type_number = 0;
/* If there was an input error and we don't really have a type,
avoid crashing and write something that is at least valid
type = integer_type_node;
else
{
- type = TYPE_MAIN_VARIANT (type);
+ /* 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
- && DECL_IGNORED_P (TYPE_NAME (type)))
+ && TYPE_DECL_SUPPRESS_DEBUG (TYPE_NAME (type)))
full = 0;
}
if (next_type_number == typevec_len)
{
- typevec = (enum typestatus *) xrealloc (typevec, typevec_len * 2 * sizeof typevec[0]);
- bzero (typevec + typevec_len, typevec_len * sizeof typevec[0]);
+ typevec
+ = (struct typeinfo *) xrealloc (typevec,
+ typevec_len * 2 * sizeof typevec[0]);
+ bzero ((char *) (typevec + typevec_len),
+ typevec_len * sizeof typevec[0]);
typevec_len *= 2;
}
+
+#ifdef DBX_USE_BINCL
+ typevec[TYPE_SYMTAB_ADDRESS (type)].file_number
+ = current_file->file_number;
+ typevec[TYPE_SYMTAB_ADDRESS (type)].type_number
+ = current_file->next_type_number++;
+#endif
}
/* Output the number of this type, to refer to it. */
- fprintf (asmfile, "%d", TYPE_SYMTAB_ADDRESS (type));
- CHARS (3);
+ dbxout_type_index (type);
#ifdef DBX_TYPE_DEFINED
if (DBX_TYPE_DEFINED (type))
/* If this type's definition has been output or is now being output,
that is all. */
- switch (typevec[TYPE_SYMTAB_ADDRESS (type)])
+ switch (typevec[TYPE_SYMTAB_ADDRESS (type)].status)
{
case TYPE_UNSEEN:
break;
#ifdef DBX_NO_XREFS
/* For systems where dbx output does not allow the `=xsNAME:' syntax,
leave the type-number completely undefined rather than output
- a cross-reference. */
- if (TREE_CODE (type) == RECORD_TYPE || TREE_CODE (type) == UNION_TYPE
- || TREE_CODE (type) == ENUMERAL_TYPE)
-
- if ((TYPE_NAME (type) != 0 && !full)
- || TYPE_SIZE (type) == 0)
+ a cross-reference. If we have already used GNU debug info extensions,
+ then it is OK to output a cross reference. This is necessary to get
+ proper C++ debug output. */
+ if ((TREE_CODE (type) == RECORD_TYPE || TREE_CODE (type) == UNION_TYPE
+ || TREE_CODE (type) == QUAL_UNION_TYPE
+ || TREE_CODE (type) == ENUMERAL_TYPE)
+ && ! use_gnu_debug_info_extensions)
+ /* We must use the same test here as we use twice below when deciding
+ whether to emit a cross-reference. */
+ if ((TYPE_NAME (type) != 0
+ && ! (TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
+ && DECL_IGNORED_P (TYPE_NAME (type)))
+ && !full)
+ || TYPE_SIZE (type) == 0
+ /* No way in DBX fmt to describe a variable size. */
+ || TREE_CODE (TYPE_SIZE (type)) != INTEGER_CST)
{
- typevec[TYPE_SYMTAB_ADDRESS (type)] = TYPE_XREF;
+ typevec[TYPE_SYMTAB_ADDRESS (type)].status = TYPE_XREF;
return;
}
#endif
/* Mark it as defined, so that if it is self-referent
we will not get into an infinite recursion of definitions. */
- typevec[TYPE_SYMTAB_ADDRESS (type)] = TYPE_DEFINED;
+ 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)))
+ {
+ dbxout_type (DECL_ORIGINAL_TYPE (TYPE_NAME (type)), 0, 0);
+ return;
+ }
switch (TREE_CODE (type))
{
without saying what it is. The debugger will make it
a void type when the reference is seen, and nothing will
ever override that default. */
- fprintf (asmfile, "%d", TYPE_SYMTAB_ADDRESS (type));
- CHARS (3);
+ dbxout_type_index (type);
break;
case INTEGER_TYPE:
if (type == char_type_node && ! TREE_UNSIGNED (type))
- /* Output the type `char' as a subrange of itself!
- I don't understand this definition, just copied it
- from the output of pcc.
- This used to use `r2' explicitly and we used to
- take care to make sure that `char' was type number 2. */
- fprintf (asmfile, "r%d;0;127;", TYPE_SYMTAB_ADDRESS (type));
-#ifdef WINNING_GDB
- else if (TYPE_PRECISION (type) > BITS_PER_WORD)
+ {
+ /* Output the type `char' as a subrange of itself!
+ I don't understand this definition, just copied it
+ from the output of pcc.
+ This used to use `r2' explicitly and we used to
+ take care to make sure that `char' was type number 2. */
+ fprintf (asmfile, "r");
+ dbxout_type_index (type);
+ fprintf (asmfile, ";0;127;");
+ }
+ else if (use_gnu_debug_info_extensions
+ && (TYPE_PRECISION (type) > TYPE_PRECISION (integer_type_node)
+ || TYPE_PRECISION (type) > HOST_BITS_PER_WIDE_INT))
{
/* This used to say `r1' and we used to take care
to make sure that `int' was type number 1. */
- fprintf (asmfile, "r%d;", TYPE_SYMTAB_ADDRESS (integer_type_node));
+ fprintf (asmfile, "r");
+ dbxout_type_index (integer_type_node);
+ fprintf (asmfile, ";");
print_int_cst_octal (TYPE_MIN_VALUE (type));
fprintf (asmfile, ";");
print_int_cst_octal (TYPE_MAX_VALUE (type));
fprintf (asmfile, ";");
}
-#endif
- else
- /* Output other integer types as subranges of `int'. */
- /* This used to say `r1' and we used to take care
- to make sure that `int' was type number 1. */
- fprintf (asmfile, "r%d;%d;%d;",
- TYPE_SYMTAB_ADDRESS (integer_type_node),
- TREE_INT_CST_LOW (TYPE_MIN_VALUE (type)),
- TREE_INT_CST_LOW (TYPE_MAX_VALUE (type)));
- CHARS (25);
+ else /* Output other integer types as subranges of `int'. */
+ dbxout_range_type (type);
+ CHARS (22);
break;
case REAL_TYPE:
/* This used to say `r1' and we used to take care
to make sure that `int' was type number 1. */
- fprintf (asmfile, "r%d;%d;0;", TYPE_SYMTAB_ADDRESS (integer_type_node),
- TREE_INT_CST_LOW (size_in_bytes (type)));
- CHARS (16);
+ fprintf (asmfile, "r");
+ dbxout_type_index (integer_type_node);
+ fprintf (asmfile, ";%d;0;", int_size_in_bytes (type));
+ CHARS (13);
+ break;
+
+ case CHAR_TYPE:
+ if (use_gnu_debug_info_extensions)
+ fprintf (asmfile, "@s%d;-20;",
+ BITS_PER_UNIT * int_size_in_bytes (type));
+ else
+ {
+ /* Output the type `char' as a subrange of itself.
+ That is what pcc seems to do. */
+ fprintf (asmfile, "r");
+ dbxout_type_index (char_type_node);
+ fprintf (asmfile, ";0;%d;", TREE_UNSIGNED (type) ? 255 : 127);
+ }
+ CHARS (9);
+ break;
+
+ case BOOLEAN_TYPE:
+ if (use_gnu_debug_info_extensions)
+ fprintf (asmfile, "@s%d;-16;",
+ BITS_PER_UNIT * int_size_in_bytes (type));
+ else /* Define as enumeral type (False, True) */
+ fprintf (asmfile, "eFalse:0,True:1,;");
+ CHARS (17);
+ break;
+
+ case FILE_TYPE:
+ putc ('d', asmfile);
+ CHARS (1);
+ dbxout_type (TREE_TYPE (type), 0, 0);
+ break;
+
+ case COMPLEX_TYPE:
+ /* Differs from the REAL_TYPE by its new data type number */
+
+ if (TREE_CODE (TREE_TYPE (type)) == REAL_TYPE)
+ {
+ fprintf (asmfile, "r");
+ dbxout_type_index (type);
+ fprintf (asmfile, ";%d;0;",
+ int_size_in_bytes (TREE_TYPE (type)));
+ CHARS (12); /* The number is probably incorrect here. */
+ }
+ else
+ {
+ /* Output a complex integer type as a structure,
+ pending some other way to do it. */
+ fprintf (asmfile, "s%d", int_size_in_bytes (type));
+
+ fprintf (asmfile, "real:");
+ CHARS (10);
+ dbxout_type (TREE_TYPE (type), 0, 0);
+ fprintf (asmfile, ",%d,%d;",
+ 0, TYPE_PRECISION (TREE_TYPE (type)));
+ CHARS (8);
+ fprintf (asmfile, "imag:");
+ CHARS (5);
+ dbxout_type (TREE_TYPE (type), 0, 0);
+ fprintf (asmfile, ",%d,%d;;",
+ TYPE_PRECISION (TREE_TYPE (type)),
+ TYPE_PRECISION (TREE_TYPE (type)));
+ CHARS (9);
+ }
+ break;
+
+ case SET_TYPE:
+ if (use_gnu_debug_info_extensions)
+ {
+ have_used_extensions = 1;
+ fprintf (asmfile, "@s%d;",
+ BITS_PER_UNIT * int_size_in_bytes (type));
+ /* Check if a bitstring type, which in Chill is
+ different from a [power]set. */
+ if (TYPE_STRING_FLAG (type))
+ fprintf (asmfile, "@S;");
+ }
+ putc ('S', asmfile);
+ CHARS (1);
+ dbxout_type (TYPE_DOMAIN (type), 0, 0);
break;
case ARRAY_TYPE:
/* Output "a" followed by a range type definition
for the index type of the array
followed by a reference to the target-type.
- ar1;0;N;M for an array of type M and size N. */
- /* This used to say `r1' and we used to take care
- to make sure that `int' was type number 1. */
- fprintf (asmfile, "ar%d;0;%d;", TYPE_SYMTAB_ADDRESS (integer_type_node),
-
- (TYPE_DOMAIN (type)
- ? TREE_INT_CST_LOW (TYPE_MAX_VALUE (TYPE_DOMAIN (type)))
- : -1));
- CHARS (17);
+ ar1;0;N;M for a C array of type M and size N+1. */
+ /* Check if a character string type, which in Chill is
+ different from an array of characters. */
+ if (TYPE_STRING_FLAG (type) && use_gnu_debug_info_extensions)
+ {
+ have_used_extensions = 1;
+ fprintf (asmfile, "@S;");
+ }
+ tem = TYPE_DOMAIN (type);
+ if (tem == NULL)
+ {
+ fprintf (asmfile, "ar");
+ dbxout_type_index (integer_type_node);
+ fprintf (asmfile, ";0;-1;");
+ }
+ else
+ {
+ fprintf (asmfile, "a");
+ dbxout_range_type (tem);
+ }
+ CHARS (14);
dbxout_type (TREE_TYPE (type), 0, 0);
break;
case RECORD_TYPE:
case UNION_TYPE:
+ case QUAL_UNION_TYPE:
{
int i, n_baseclasses = 0;
if (TYPE_BINFO (type) != 0 && TYPE_BINFO_BASETYPES (type) != 0)
n_baseclasses = TREE_VEC_LENGTH (TYPE_BINFO_BASETYPES (type));
- /* Output a structure type. */
+ /* Output a structure type. We must use the same test here as we
+ use in the DBX_NO_XREFS case above. */
if ((TYPE_NAME (type) != 0
-#if 0 /* Tiemann says this creates output tha "confuses GDB".
- Too bad the info is so vague. Hope this doesn't lose. */
&& ! (TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
&& DECL_IGNORED_P (TYPE_NAME (type)))
-#endif
&& !full)
|| TYPE_SIZE (type) == 0
/* No way in DBX fmt to describe a variable size. */
if (TREE_CODE (TYPE_NAME (type)) != IDENTIFIER_NODE)
abort ();
#endif
- dbxout_type_name (type);
+ if (TYPE_NAME (type) != 0)
+ dbxout_type_name (type);
+ else
+ fprintf (asmfile, "$$%d", anonymous_type_number++);
fprintf (asmfile, ":");
- typevec[TYPE_SYMTAB_ADDRESS (type)] = TYPE_XREF;
+ typevec[TYPE_SYMTAB_ADDRESS (type)].status = TYPE_XREF;
break;
}
- tem = size_in_bytes (type);
/* Identify record or union, and print its size. */
fprintf (asmfile, (TREE_CODE (type) == RECORD_TYPE) ? "s%d" : "u%d",
- TREE_INT_CST_LOW (tem));
+ int_size_in_bytes (type));
if (use_gnu_debug_info_extensions)
{
break;
case ENUMERAL_TYPE:
- if ((TYPE_NAME (type) != 0 && !full
- && (TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
- && ! DECL_IGNORED_P (TYPE_NAME (type))))
+ /* We must use the same test here as we use in the DBX_NO_XREFS case
+ above. We simplify it a bit since an enum will never have a variable
+ size. */
+ if ((TYPE_NAME (type) != 0
+ && ! (TREE_CODE (TYPE_NAME (type)) == TYPE_DECL
+ && DECL_IGNORED_P (TYPE_NAME (type)))
+ && !full)
|| TYPE_SIZE (type) == 0)
{
fprintf (asmfile, "xe");
CHARS (3);
dbxout_type_name (type);
- typevec[TYPE_SYMTAB_ADDRESS (type)] = TYPE_XREF;
+ typevec[TYPE_SYMTAB_ADDRESS (type)].status = TYPE_XREF;
fprintf (asmfile, ":");
return;
}
#ifdef DBX_OUTPUT_ENUM
DBX_OUTPUT_ENUM (asmfile, type);
#else
+ if (use_gnu_debug_info_extensions
+ && TYPE_PRECISION (type) != TYPE_PRECISION (integer_type_node))
+ fprintf (asmfile, "@s%d;", TYPE_PRECISION (type));
putc ('e', asmfile);
CHARS (1);
for (tem = TYPE_VALUES (type); tem; tem = TREE_CHAIN (tem))
{
- fprintf (asmfile, "%s:%d,", IDENTIFIER_POINTER (TREE_PURPOSE (tem)),
- TREE_INT_CST_LOW (TREE_VALUE (tem)));
- CHARS (11 + IDENTIFIER_LENGTH (TREE_PURPOSE (tem)));
+ fprintf (asmfile, "%s:", IDENTIFIER_POINTER (TREE_PURPOSE (tem)));
+ if (TREE_INT_CST_HIGH (TREE_VALUE (tem)) == 0)
+ fprintf (asmfile, "%lu",
+ (unsigned long) TREE_INT_CST_LOW (TREE_VALUE (tem)));
+ else if (TREE_INT_CST_HIGH (TREE_VALUE (tem)) == -1
+ && TREE_INT_CST_LOW (TREE_VALUE (tem)) < 0)
+ fprintf (asmfile, "%ld",
+ (long) TREE_INT_CST_LOW (TREE_VALUE (tem)));
+ else
+ print_int_cst_octal (TREE_VALUE (tem));
+ fprintf (asmfile, ",");
+ CHARS (20 + IDENTIFIER_LENGTH (TREE_PURPOSE (tem)));
if (TREE_CHAIN (tem) != 0)
CONTIN;
}
/* Normally, just output the return type.
The argument types are encoded in the method name. */
putc ('#', asmfile);
+ CHARS (1);
dbxout_type (TREE_TYPE (type), 0, 0);
putc (';', asmfile);
CHARS (1);
unsigned HOST_WIDE_INT high = TREE_INT_CST_HIGH (c);
unsigned HOST_WIDE_INT low = TREE_INT_CST_LOW (c);
int excess = (3 - (HOST_BITS_PER_WIDE_INT % 3));
+ int width = TYPE_PRECISION (TREE_TYPE (c));
+
+ /* GDB wants constants with no extra leading "1" bits, so
+ we need to remove any sign-extension that might be
+ present. */
+ if (width == HOST_BITS_PER_WIDE_INT * 2)
+ ;
+ else if (width > HOST_BITS_PER_WIDE_INT)
+ high &= (((HOST_WIDE_INT) 1 << (width - HOST_BITS_PER_WIDE_INT)) - 1);
+ else if (width == HOST_BITS_PER_WIDE_INT)
+ high = 0;
+ else
+ high = 0, low &= (((HOST_WIDE_INT) 1 << width) - 1);
fprintf (asmfile, "0");
= ((high & (((HOST_WIDE_INT) 1 << excess) - 1)) << (3 - excess)
| (low >> (HOST_BITS_PER_WIDE_INT / 3 * 3)));
unsigned HOST_WIDE_INT end
- = low & (((HOST_WIDE_INT) 1 << (HOST_BITS_PER_WIDE_INT / 3 * 3)) - 1);
+ = low & (((unsigned HOST_WIDE_INT) 1
+ << (HOST_BITS_PER_WIDE_INT / 3 * 3))
+ - 1);
+
fprintf (asmfile, "%o%01o", beg, middle);
print_octal (end, HOST_BITS_PER_WIDE_INT / 3);
}
tree decl;
int local;
{
- int letter = 0;
tree type = TREE_TYPE (decl);
tree context = NULL_TREE;
- int regno = -1;
/* Cast avoids warning in old compilers. */
current_sym_code = (STAB_CODE_TYPE) 0;
/* If this typedef name was defined by outputting the type,
don't duplicate it. */
- if (typevec[TYPE_SYMTAB_ADDRESS (type)] == TYPE_DEFINED
+ if (typevec[TYPE_SYMTAB_ADDRESS (type)].status == TYPE_DEFINED
&& TYPE_NAME (TREE_TYPE (decl)) == decl)
return;
#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) || DECL_IGNORED_P (decl))
+ if (TREE_ASM_WRITTEN (decl) || TYPE_DECL_SUPPRESS_DEBUG (decl))
return;
FORCE_TEXT;
{
int tag_needed = 1;
+ int did_output = 0;
if (DECL_NAME (decl))
{
which gives both a typedef name and a tag. */
/* dbx requires the tag first and the typedef second. */
if ((TREE_CODE (type) == RECORD_TYPE
- || TREE_CODE (type) == UNION_TYPE)
+ || TREE_CODE (type) == UNION_TYPE
+ || TREE_CODE (type) == QUAL_UNION_TYPE)
&& TYPE_NAME (type) == decl
&& !(use_gnu_debug_info_extensions && have_used_extensions)
&& !TREE_ASM_WRITTEN (TYPE_NAME (type))
/* Distinguish the implicit typedefs of C++
from explicit ones that might be found in C. */
- && DECL_SOURCE_LINE (decl) == 0)
+ && DECL_ARTIFICIAL (decl))
{
tree name = TYPE_NAME (type);
if (TREE_CODE (name) == TYPE_DECL)
/* Short cut way to output a tag also. */
if ((TREE_CODE (type) == RECORD_TYPE
- || TREE_CODE (type) == UNION_TYPE)
- && TYPE_NAME (type) == decl)
+ || TREE_CODE (type) == UNION_TYPE
+ || TREE_CODE (type) == QUAL_UNION_TYPE)
+ && TYPE_NAME (type) == decl
+ /* Distinguish the implicit typedefs of C++
+ from explicit ones that might be found in C. */
+ && DECL_ARTIFICIAL (decl))
{
if (use_gnu_debug_info_extensions && have_used_extensions)
{
dbxout_type (type, 1, 0);
dbxout_finish_symbol (decl);
+ did_output = 1;
}
+ /* Don't output a tag if this is an incomplete type (TYPE_SIZE is
+ zero). This prevents the sun4 Sun OS 4.x dbx from crashing. */
+
if (tag_needed && TYPE_NAME (type) != 0
+ && (TREE_CODE (TYPE_NAME (type)) == IDENTIFIER_NODE
+ || (DECL_NAME (TYPE_NAME (type)) != 0))
+ && TYPE_SIZE (type) != 0
&& !TREE_ASM_WRITTEN (TYPE_NAME (type)))
{
/* For a TYPE_DECL with no name, but the type has a name,
IDENTIFIER_POINTER (name));
dbxout_type (type, 1, 0);
dbxout_finish_symbol (NULL_TREE);
+ did_output = 1;
+ }
+
+ /* If an enum type has no name, it cannot be referred to,
+ but we must output it anyway, since the enumeration constants
+ can be referred to. */
+ if (!did_output && TREE_CODE (type) == ENUMERAL_TYPE)
+ {
+ current_sym_code = DBX_TYPE_DECL_STABS_CODE;
+ current_sym_value = 0;
+ current_sym_addr = 0;
+ current_sym_nchars = 2;
+
+ /* Some debuggers fail when given NULL names, so give this a
+ harmless name of ` '. */
+ fprintf (asmfile, "%s \" :T", ASM_STABS_OP);
+ dbxout_type (type, 1, 0);
+ dbxout_finish_symbol (NULL_TREE);
}
/* Prevent duplicate output of a typedef. */
/* else it is something we handle like a normal variable. */
}
- DECL_RTL (decl) = eliminate_regs (DECL_RTL (decl), 0, 0);
+ DECL_RTL (decl) = eliminate_regs (DECL_RTL (decl), 0, NULL_RTX, 0);
#ifdef LEAF_REG_REMAP
if (leaf_function)
leaf_renumber_regs_insn (DECL_RTL (decl));
#endif
- /* Don't mention a variable at all
- if it was completely optimized into nothingness.
+ dbxout_symbol_location (decl, type, 0, DECL_RTL (decl));
+ }
+}
+\f
+/* Output the stab for DECL, a VAR_DECL, RESULT_DECL or PARM_DECL.
+ Add SUFFIX to its name, if SUFFIX is not 0.
+ Describe the variable as residing in HOME
+ (usually HOME is DECL_RTL (DECL), but not always). */
+
+static void
+dbxout_symbol_location (decl, type, suffix, home)
+ tree decl, type;
+ char *suffix;
+ rtx home;
+{
+ int letter = 0;
+ int regno = -1;
- If DECL was from an inline function, then it's rtl
- is not identically the rtl that was used in this
- particular compilation. */
- if (GET_CODE (DECL_RTL (decl)) == REG)
+ /* Don't mention a variable at all
+ if it was completely optimized into nothingness.
+
+ If the decl was from an inline function, then it's rtl
+ is not identically the rtl that was used in this
+ particular compilation. */
+ if (GET_CODE (home) == REG)
+ {
+ regno = REGNO (home);
+ if (regno >= FIRST_PSEUDO_REGISTER)
+ return;
+ }
+ else if (GET_CODE (home) == SUBREG)
+ {
+ rtx value = home;
+ int offset = 0;
+ while (GET_CODE (value) == SUBREG)
+ {
+ offset += SUBREG_WORD (value);
+ value = SUBREG_REG (value);
+ }
+ if (GET_CODE (value) == REG)
{
- regno = REGNO (DECL_RTL (decl));
+ regno = REGNO (value);
if (regno >= FIRST_PSEUDO_REGISTER)
return;
+ regno += offset;
}
- else if (GET_CODE (DECL_RTL (decl)) == SUBREG)
+ alter_subreg (home);
+ }
+
+ /* The kind-of-variable letter depends on where
+ the variable is and on the scope of its name:
+ G and N_GSYM for static storage and global scope,
+ S for static storage and file scope,
+ V for static storage and local scope,
+ for those two, use N_LCSYM if data is in bss segment,
+ N_STSYM if in data segment, N_FUN otherwise.
+ (We used N_FUN originally, then changed to N_STSYM
+ to please GDB. However, it seems that confused ld.
+ Now GDB has been fixed to like N_FUN, says Kingdon.)
+ no letter at all, and N_LSYM, for auto variable,
+ r and N_RSYM for register variable. */
+
+ if (GET_CODE (home) == MEM
+ && GET_CODE (XEXP (home, 0)) == SYMBOL_REF)
+ {
+ if (TREE_PUBLIC (decl))
{
- rtx value = DECL_RTL (decl);
- int offset = 0;
- while (GET_CODE (value) == SUBREG)
- {
- offset += SUBREG_WORD (value);
- value = SUBREG_REG (value);
- }
- if (GET_CODE (value) == REG)
- {
- regno = REGNO (value);
- if (regno >= FIRST_PSEUDO_REGISTER)
- return;
- regno += offset;
- }
- alter_subreg (DECL_RTL (decl));
+ letter = 'G';
+ current_sym_code = N_GSYM;
}
-
- /* The kind-of-variable letter depends on where
- the variable is and on the scope of its name:
- G and N_GSYM for static storage and global scope,
- S for static storage and file scope,
- V for static storage and local scope,
- for those two, use N_LCSYM if data is in bss segment,
- N_STSYM if in data segment, N_FUN otherwise.
- (We used N_FUN originally, then changed to N_STSYM
- to please GDB. However, it seems that confused ld.
- Now GDB has been fixed to like N_FUN, says Kingdon.)
- no letter at all, and N_LSYM, for auto variable,
- r and N_RSYM for register variable. */
-
- if (GET_CODE (DECL_RTL (decl)) == MEM
- && GET_CODE (XEXP (DECL_RTL (decl), 0)) == SYMBOL_REF)
+ else
{
- if (TREE_PUBLIC (decl))
- {
- letter = 'G';
- current_sym_code = N_GSYM;
- }
+ current_sym_addr = XEXP (home, 0);
+
+ letter = decl_function_context (decl) ? 'V' : 'S';
+
+ /* This should be the same condition as in assemble_variable, but
+ we don't have access to dont_output_data here. So, instead,
+ 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")
+ && DECL_INITIAL (decl) == error_mark_node))
+ current_sym_code = N_LCSYM;
+ else if (DECL_IN_TEXT_SECTION (decl))
+ /* This is not quite right, but it's the closest
+ of all the codes that Unix defines. */
+ current_sym_code = DBX_STATIC_CONST_VAR_CODE;
else
{
- current_sym_addr = XEXP (DECL_RTL (decl), 0);
-
- letter = decl_function_context (decl) ? 'V' : 'S';
-
- if (!DECL_INITIAL (decl))
- current_sym_code = N_LCSYM;
- else if (TREE_READONLY (decl) && ! TREE_THIS_VOLATILE (decl))
- /* This is not quite right, but it's the closest
- of all the codes that Unix defines. */
- current_sym_code = DBX_STATIC_CONST_VAR_CODE;
- else
- {
-/* Ultrix `as' seems to need this. */
+ /* Ultrix `as' seems to need this. */
#ifdef DBX_STATIC_STAB_DATA_SECTION
- data_section ();
+ data_section ();
#endif
- current_sym_code = N_STSYM;
- }
+ current_sym_code = N_STSYM;
}
}
- else if (regno >= 0)
+ }
+ else if (regno >= 0)
+ {
+ letter = 'r';
+ 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
+ && REGNO (XEXP (home, 0)) != HARD_FRAME_POINTER_REGNUM)))
+ /* If the value is indirect by memory or by a register
+ that isn't the frame pointer
+ 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 (GET_CODE (XEXP (home, 0)) == REG)
{
letter = 'r';
current_sym_code = N_RSYM;
- current_sym_value = DBX_REGISTER_NUMBER (regno);
+ current_sym_value = DBX_REGISTER_NUMBER (REGNO (XEXP (home, 0)));
}
- else if (GET_CODE (DECL_RTL (decl)) == MEM
- && (GET_CODE (XEXP (DECL_RTL (decl), 0)) == MEM
- || (GET_CODE (XEXP (DECL_RTL (decl), 0)) == REG
- && REGNO (XEXP (DECL_RTL (decl), 0)) != FRAME_POINTER_REGNUM)))
- /* If the value is indirect by memory or by a register
- that isn't the frame pointer
- 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 (GET_CODE (XEXP (DECL_RTL (decl), 0)) == REG)
- {
- letter = 'r';
- current_sym_code = N_RSYM;
- current_sym_value = DBX_REGISTER_NUMBER (REGNO (XEXP (DECL_RTL (decl), 0)));
- }
- else
- {
- current_sym_code = N_LSYM;
- /* DECL_RTL looks like (MEM (MEM (PLUS (REG...) (CONST_INT...)))).
- We want the value of that CONST_INT. */
- current_sym_value
- = DEBUGGER_AUTO_OFFSET (XEXP (XEXP (DECL_RTL (decl), 0), 0));
- }
-
- /* Effectively do build_pointer_type, but don't cache this type,
- since it might be temporary whereas the type it points to
- might have been saved for inlining. */
- /* Don't use REFERENCE_TYPE because dbx can't handle that. */
- type = make_node (POINTER_TYPE);
- TREE_TYPE (type) = TREE_TYPE (decl);
- }
- else if (GET_CODE (DECL_RTL (decl)) == MEM
- && GET_CODE (XEXP (DECL_RTL (decl), 0)) == REG)
- {
- current_sym_code = N_LSYM;
- current_sym_value = DEBUGGER_AUTO_OFFSET (XEXP (DECL_RTL (decl), 0));
- }
- else if (GET_CODE (DECL_RTL (decl)) == MEM
- && GET_CODE (XEXP (DECL_RTL (decl), 0)) == PLUS
- && GET_CODE (XEXP (XEXP (DECL_RTL (decl), 0), 1)) == CONST_INT)
+ else
{
current_sym_code = N_LSYM;
- /* DECL_RTL looks like (MEM (PLUS (REG...) (CONST_INT...)))
+ /* RTL looks like (MEM (MEM (PLUS (REG...) (CONST_INT...)))).
We want the value of that CONST_INT. */
- current_sym_value = DEBUGGER_AUTO_OFFSET (XEXP (DECL_RTL (decl), 0));
- }
- else if (GET_CODE (DECL_RTL (decl)) == MEM
- && GET_CODE (XEXP (DECL_RTL (decl), 0)) == CONST)
- {
- /* Handle an obscure case which can arise when optimizing and
- when there are few available registers. (This is *always*
- the case for i386/i486 targets). The DECL_RTL looks like
- (MEM (CONST ...)) even though this variable is a local `auto'
- or a local `register' variable. In effect, what has happened
- is that the reload pass has seen that all assignments and
- references for one such a local variable can be replaced by
- equivalent assignments and references to some static storage
- variable, thereby avoiding the need for a register. In such
- cases we're forced to lie to debuggers and tell them that
- this variable was itself `static'. */
- current_sym_code = N_LCSYM;
- letter = 'V';
- current_sym_addr = XEXP (XEXP (DECL_RTL (decl), 0), 0);
+ current_sym_value
+ = DEBUGGER_AUTO_OFFSET (XEXP (XEXP (home, 0), 0));
}
+
+ /* Effectively do build_pointer_type, but don't cache this type,
+ since it might be temporary whereas the type it points to
+ might have been saved for inlining. */
+ /* Don't use REFERENCE_TYPE because dbx can't handle that. */
+ type = make_node (POINTER_TYPE);
+ TREE_TYPE (type) = TREE_TYPE (decl);
+ }
+ else if (GET_CODE (home) == MEM
+ && GET_CODE (XEXP (home, 0)) == REG)
+ {
+ current_sym_code = N_LSYM;
+ current_sym_value = DEBUGGER_AUTO_OFFSET (XEXP (home, 0));
+ }
+ else if (GET_CODE (home) == MEM
+ && GET_CODE (XEXP (home, 0)) == PLUS
+ && GET_CODE (XEXP (XEXP (home, 0), 1)) == CONST_INT)
+ {
+ current_sym_code = N_LSYM;
+ /* RTL looks like (MEM (PLUS (REG...) (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
+ && GET_CODE (XEXP (home, 0)) == CONST)
+ {
+ /* Handle an obscure case which can arise when optimizing and
+ when there are few available registers. (This is *always*
+ the case for i386/i486 targets). The RTL looks like
+ (MEM (CONST ...)) even though this variable is a local `auto'
+ or a local `register' variable. In effect, what has happened
+ is that the reload pass has seen that all assignments and
+ references for one such a local variable can be replaced by
+ equivalent assignments and references to some static storage
+ variable, thereby avoiding the need for a register. In such
+ cases we're forced to lie to debuggers and tell them that
+ this variable was itself `static'. */
+ current_sym_code = N_LCSYM;
+ letter = 'V';
+ current_sym_addr = XEXP (XEXP (home, 0), 0);
+ }
+ else if (GET_CODE (home) == CONCAT)
+ {
+ tree subtype = TREE_TYPE (type);
+
+ /* If the variable's storage is in two parts,
+ output each as a separate stab with a modified name. */
+ if (WORDS_BIG_ENDIAN)
+ dbxout_symbol_location (decl, subtype, "$imag", XEXP (home, 0));
else
- /* Address might be a MEM, when DECL is a variable-sized object.
- Or it might be const0_rtx, meaning previous passes
- want us to ignore this variable. */
- break;
+ dbxout_symbol_location (decl, subtype, "$real", XEXP (home, 0));
- /* Ok, start a symtab entry and output the variable name. */
- FORCE_TEXT;
+ /* 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)
+ dbxout_symbol_location (decl, subtype, "$real", XEXP (home, 1));
+ else
+ dbxout_symbol_location (decl, subtype, "$imag", XEXP (home, 1));
+ return;
+ }
+ else
+ /* Address might be a MEM, when DECL is a variable-sized object.
+ Or it might be const0_rtx, meaning previous passes
+ want us to ignore this variable. */
+ return;
+
+ /* Ok, start a symtab entry and output the variable name. */
+ FORCE_TEXT;
#ifdef DBX_STATIC_BLOCK_START
- DBX_STATIC_BLOCK_START (asmfile, current_sym_code);
+ DBX_STATIC_BLOCK_START (asmfile, current_sym_code);
#endif
- /* 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
- DECL_NAME. */
- {
- char *name;
- /* Note also that static member (variable) names DO NOT begin
- with underscores in .stabs directives. */
- if (DECL_LANG_SPECIFIC (decl))
- name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl));
- else
- name = IDENTIFIER_POINTER (DECL_NAME (decl));
- fprintf (asmfile, "%s \"%s:", ASM_STABS_OP, name);
- }
- if (letter) putc (letter, asmfile);
- dbxout_type (type, 0, 0);
- dbxout_finish_symbol (decl);
+ dbxout_symbol_name (decl, suffix, letter);
+ dbxout_type (type, 0, 0);
+ dbxout_finish_symbol (decl);
#ifdef DBX_STATIC_BLOCK_END
- DBX_STATIC_BLOCK_END (asmfile, current_sym_code);
+ DBX_STATIC_BLOCK_END (asmfile, current_sym_code);
#endif
- break;
- }
+}
+\f
+/* Output the symbol name of DECL for a stabs, with suffix SUFFIX.
+ Then output LETTER to indicate the kind of location the symbol has. */
+
+static void
+dbxout_symbol_name (decl, suffix, letter)
+ tree decl;
+ char *suffix;
+ int letter;
+{
+ /* 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
+ DECL_NAME. Note also that static member (variable) names DO NOT begin
+ with underscores in .stabs directives. */
+ char *name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl));
+ if (name == 0)
+ name = "(anon)";
+ fprintf (asmfile, "%s \"%s%s:", ASM_STABS_OP, name,
+ (suffix ? suffix : ""));
+
+ if (letter) putc (letter, asmfile);
}
static void
DBX_FINISH_SYMBOL (sym);
#else
int line = 0;
-#ifdef WINNING_GDB
- if (sym != 0)
+ if (use_gnu_debug_info_extensions && sym != 0)
line = DECL_SOURCE_LINE (sym);
-#endif
fprintf (asmfile, "\",%d,0,%d,", current_sym_code, line);
if (current_sym_addr)
/* Perform any necessary register eliminations on the parameter's rtl,
so that the debugging output will be accurate. */
DECL_INCOMING_RTL (parms)
- = eliminate_regs (DECL_INCOMING_RTL (parms), 0, NULL_RTX);
- DECL_RTL (parms) = eliminate_regs (DECL_RTL (parms), 0, NULL_RTX);
+ = eliminate_regs (DECL_INCOMING_RTL (parms), 0, NULL_RTX, 0);
+ DECL_RTL (parms) = eliminate_regs (DECL_RTL (parms), 0, NULL_RTX, 0);
#ifdef LEAF_REG_REMAP
if (leaf_function)
{
DBX_MEMPARM_STABS_LETTER);
}
- if (GET_CODE (DECL_RTL (parms)) == REG
- && REGNO (DECL_RTL (parms)) >= 0
- && REGNO (DECL_RTL (parms)) < FIRST_PSEUDO_REGISTER)
- dbxout_type (DECL_ARG_TYPE (parms), 0, 0);
- else
- {
- int original_value = current_sym_value;
-
- /* This is the case where the parm is passed as an int or double
- and it is converted to a char, short or float and stored back
- in the parmlist. In this case, describe the parm
- with the variable's declared type, and adjust the address
- if the least significant bytes (which we are using) are not
- the first ones. */
-#if BYTES_BIG_ENDIAN
- if (TREE_TYPE (parms) != DECL_ARG_TYPE (parms))
- current_sym_value += (GET_MODE_SIZE (TYPE_MODE (DECL_ARG_TYPE (parms)))
- - GET_MODE_SIZE (GET_MODE (DECL_RTL (parms))));
-#endif
-
- if (GET_CODE (DECL_RTL (parms)) == MEM
- && GET_CODE (XEXP (DECL_RTL (parms), 0)) == PLUS
- && GET_CODE (XEXP (XEXP (DECL_RTL (parms), 0), 1)) == CONST_INT
- && INTVAL (XEXP (XEXP (DECL_RTL (parms), 0), 1)) == current_sym_value)
- dbxout_type (TREE_TYPE (parms), 0, 0);
- else
- {
- current_sym_value = original_value;
- dbxout_type (DECL_ARG_TYPE (parms), 0, 0);
- }
- }
+ dbxout_type (DECL_ARG_TYPE (parms), 0, 0);
current_sym_value = DEBUGGER_ARG_OFFSET (current_sym_value, addr);
dbxout_finish_symbol (parms);
}
{
rtx best_rtl;
char regparm_letter;
+ tree parm_type;
/* Parm passed in registers and lives in registers or nowhere. */
current_sym_code = DBX_REGPARM_STABS_CODE;
/* If parm lives in a register, use that register;
pretend the parm was passed there. It would be more consistent
to describe the register where the parm was passed,
- but in practice that register usually holds something else. */
+ but in practice that register usually holds something else.
+
+ If we use DECL_RTL, then we must use the declared type of
+ the variable, not the type that it arrived in. */
if (REGNO (DECL_RTL (parms)) >= 0
&& REGNO (DECL_RTL (parms)) < FIRST_PSEUDO_REGISTER)
- best_rtl = DECL_RTL (parms);
- /* If the parm lives nowhere,
- use the register where it was passed. */
+ {
+ best_rtl = DECL_RTL (parms);
+ parm_type = TREE_TYPE (parms);
+ }
+ /* If the parm lives nowhere, use the register where it was
+ passed. It is also better to use the declared type here. */
else
- best_rtl = DECL_INCOMING_RTL (parms);
+ {
+ best_rtl = DECL_INCOMING_RTL (parms);
+ parm_type = TREE_TYPE (parms);
+ }
current_sym_value = DBX_REGISTER_NUMBER (REGNO (best_rtl));
FORCE_TEXT;
regparm_letter);
}
- dbxout_type (DECL_ARG_TYPE (parms), 0, 0);
+ dbxout_type (parm_type, 0, 0);
dbxout_finish_symbol (parms);
}
else if (GET_CODE (DECL_RTL (parms)) == MEM
&& GET_CODE (XEXP (DECL_RTL (parms), 0)) == REG
- && rtx_equal_p (XEXP (DECL_RTL (parms), 0),
- DECL_INCOMING_RTL (parms)))
+ && 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
+ && REGNO (XEXP (DECL_RTL (parms), 0)) != ARG_POINTER_REGNUM
+#endif
+ )
{
/* Parm was passed via invisible reference.
That is, its address was passed in a register.
/* Parm passed in registers and lives in registers or nowhere. */
current_sym_code = DBX_REGPARM_STABS_CODE;
- regparm_letter = DBX_REGPARM_STABS_LETTER;
+ if (use_gnu_debug_info_extensions)
+ regparm_letter = GDB_INV_REF_REGPARM_STABS_LETTER;
+ else
+ regparm_letter = DBX_REGPARM_STABS_LETTER;
+
+ /* DECL_RTL looks like (MEM (REG...). Get the register number.
+ If it is an unallocated pseudo-reg, then use the register where
+ it was passed instead. */
+ if (REGNO (XEXP (DECL_RTL (parms), 0)) >= 0
+ && REGNO (XEXP (DECL_RTL (parms), 0)) < FIRST_PSEUDO_REGISTER)
+ current_sym_value = REGNO (XEXP (DECL_RTL (parms), 0));
+ else
+ current_sym_value = REGNO (DECL_INCOMING_RTL (parms));
- /* DECL_RTL looks like (MEM (REG...). Get the register number. */
- current_sym_value = REGNO (XEXP (DECL_RTL (parms), 0));
current_sym_addr = 0;
FORCE_TEXT;
fprintf (asmfile, "%s \"%s:%c", ASM_STABS_OP,
IDENTIFIER_POINTER (DECL_NAME (parms)),
- DBX_REGPARM_STABS_LETTER);
+ regparm_letter);
}
else
{
current_sym_nchars = 8;
fprintf (asmfile, "%s \"(anon):%c", ASM_STABS_OP,
- DBX_REGPARM_STABS_LETTER);
+ regparm_letter);
}
dbxout_type (TREE_TYPE (parms), 0, 0);
dbxout_finish_symbol (parms);
}
else if (GET_CODE (DECL_RTL (parms)) == MEM
- && XEXP (DECL_RTL (parms), 0) != const0_rtx)
+ && 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.
+ Should make this not happen, after 2.4. */
+ && ! CONSTANT_P (XEXP (DECL_RTL (parms), 0)))
{
/* Parm was passed in registers but lives on the stack. */
tree parms;
{
for (; parms; parms = TREE_CHAIN (parms))
- if (DECL_NAME (parms))
+ if (DECL_NAME (parms) && PARM_PASSED_IN_MEMORY (parms))
{
dbxout_prepare_symbol (parms);
but were passed in memory. */
if (GET_CODE (DECL_RTL (parms)) == REG
&& REGNO (DECL_RTL (parms)) >= 0
- && REGNO (DECL_RTL (parms)) < FIRST_PSEUDO_REGISTER
- && PARM_PASSED_IN_MEMORY (parms))
- {
- current_sym_code = N_RSYM;
- current_sym_value = DBX_REGISTER_NUMBER (REGNO (DECL_RTL (parms)));
- current_sym_addr = 0;
-
- FORCE_TEXT;
- if (DECL_NAME (parms))
- {
- current_sym_nchars = 2 + IDENTIFIER_LENGTH (DECL_NAME (parms));
- fprintf (asmfile, "%s \"%s:r", ASM_STABS_OP,
- IDENTIFIER_POINTER (DECL_NAME (parms)));
- }
- else
- {
- current_sym_nchars = 8;
- fprintf (asmfile, "%s \"(anon):r", ASM_STABS_OP);
- }
- dbxout_type (TREE_TYPE (parms), 0, 0);
- dbxout_finish_symbol (parms);
- }
+ && REGNO (DECL_RTL (parms)) < FIRST_PSEUDO_REGISTER)
+ dbxout_symbol_location (parms, TREE_TYPE (parms),
+ 0, DECL_RTL (parms));
+ else if (GET_CODE (DECL_RTL (parms)) == CONCAT)
+ 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
- && GET_CODE (XEXP (DECL_RTL (parms), 0)) == PLUS
- && GET_CODE (XEXP (XEXP (DECL_RTL (parms), 0), 1)) == CONST_INT
- && PARM_PASSED_IN_MEMORY (parms)
&& ! rtx_equal_p (DECL_RTL (parms), DECL_INCOMING_RTL (parms)))
- {
-#if 0 /* ??? It is not clear yet what should replace this. */
- int offset = DECL_OFFSET (parms) / BITS_PER_UNIT;
- /* A parm declared char is really passed as an int,
- so it occupies the least significant bytes.
- On a big-endian machine those are not the low-numbered ones. */
-#if BYTES_BIG_ENDIAN
- if (offset != -1 && TREE_TYPE (parms) != DECL_ARG_TYPE (parms))
- offset += (GET_MODE_SIZE (TYPE_MODE (DECL_ARG_TYPE (parms)))
- - GET_MODE_SIZE (GET_MODE (DECL_RTL (parms))));
-#endif
- if (INTVAL (XEXP (XEXP (DECL_RTL (parms), 0), 1)) != offset) {...}
-#endif
- current_sym_code = N_LSYM;
- current_sym_value = DEBUGGER_AUTO_OFFSET (XEXP (DECL_RTL (parms), 0));
- current_sym_addr = 0;
- FORCE_TEXT;
- if (DECL_NAME (parms))
- {
- current_sym_nchars = 2 + IDENTIFIER_LENGTH (DECL_NAME (parms));
- fprintf (asmfile, "%s \"%s:", ASM_STABS_OP,
- IDENTIFIER_POINTER (DECL_NAME (parms)));
- }
- else
- {
- current_sym_nchars = 8;
- fprintf (asmfile, "%s \"(anon):", ASM_STABS_OP);
- }
- dbxout_type (TREE_TYPE (parms), 0, 0);
- dbxout_finish_symbol (parms);
- }
+ dbxout_symbol_location (parms, TREE_TYPE (parms),
+ 0, DECL_RTL (parms));
}
}
\f
assemble_name (asmfile, buf);
#if DBX_BLOCKS_FUNCTION_RELATIVE
fputc ('-', asmfile);
- assemble_name (asmfile, IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (current_function_decl)));
+ assemble_name (asmfile, XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0));
#endif
fprintf (asmfile, "\n");
#endif
assemble_name (asmfile, buf);
#if DBX_BLOCKS_FUNCTION_RELATIVE
fputc ('-', asmfile);
- assemble_name (asmfile, IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (current_function_decl)));
+ assemble_name (asmfile, XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0));
#endif
fprintf (asmfile, "\n");
#endif
#ifdef DBX_OUTPUT_FUNCTION_END
DBX_OUTPUT_FUNCTION_END (asmfile, decl);
#endif
+#if defined(ASM_OUTPUT_SECTION_NAME)
+ if (use_gnu_debug_info_extensions
+#if defined(NO_DBX_FUNCTION_END)
+ && ! NO_DBX_FUNCTION_END
+#endif
+ )
+ dbxout_function_end ();
+#endif
}
#endif /* DBX_DEBUGGING_INFO */
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