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* symtab.c (_initialize_symtab): Remove builtin type
definition and initialization to *-exp.y. (lookup_primitive_typename): Use language-dependent vector. (lookup_typename): Fix bug, make it work if primitive typename. (lookup_unsigned_typename): Call above. (create_array_type): Set up range type for array index. (list_symbols): Call typedef_print to print typedefs. (Currently #ifndef FIXME'd out awaiting integration.)
This commit is contained in:
John Gilmore
parent
ec99961f8a
commit
997a978c5d
288
gdb/symtab.c
288
gdb/symtab.c
@ -1,21 +1,21 @@
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/* Symbol table lookup for the GNU debugger, GDB.
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Copyright (C) 1986, 1987, 1988, 1989, 1990 Free Software Foundation, Inc.
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Copyright 1986, 1987, 1988, 1989, 1990, 1991 Free Software Foundation, Inc.
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This file is part of GDB.
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GDB is free software; you can redistribute it and/or modify
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 1, or (at your option)
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any later version.
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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GDB is distributed in the hope that it will be useful,
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GDB; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include <stdio.h>
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#include "defs.h"
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@ -28,6 +28,7 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include "symfile.h"
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#include "gdbcmd.h"
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#include "regex.h"
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#include "language.h"
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#include <obstack.h>
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#include <assert.h>
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@ -51,22 +52,7 @@ static struct partial_symbol *lookup_partial_symbol ();
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static struct partial_symbol *lookup_demangled_partial_symbol ();
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static struct symbol *lookup_demangled_block_symbol ();
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/* These variables point to the objects
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representing the predefined C data types. */
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struct type *builtin_type_void;
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struct type *builtin_type_char;
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struct type *builtin_type_short;
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struct type *builtin_type_int;
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struct type *builtin_type_long;
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struct type *builtin_type_long_long;
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struct type *builtin_type_unsigned_char;
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struct type *builtin_type_unsigned_short;
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struct type *builtin_type_unsigned_int;
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struct type *builtin_type_unsigned_long;
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struct type *builtin_type_unsigned_long_long;
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struct type *builtin_type_float;
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struct type *builtin_type_double;
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/* The single non-language-specific builtin type */
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struct type *builtin_type_error;
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/* Block in which the most recently searched-for symbol was found.
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@ -271,21 +257,12 @@ struct type *
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lookup_primitive_typename (name)
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char *name;
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{
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if (!strcmp (name, "int"))
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return builtin_type_int;
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if (!strcmp (name, "long"))
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return builtin_type_long;
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if (!strcmp (name, "short"))
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return builtin_type_short;
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if (!strcmp (name, "char"))
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return builtin_type_char;
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if (!strcmp (name, "float"))
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return builtin_type_float;
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if (!strcmp (name, "double"))
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return builtin_type_double;
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if (!strcmp (name, "void"))
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return builtin_type_void;
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return 0;
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struct type ***p;
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for (p = current_language->la_builtin_type_vector; *p; p++)
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if(!strcmp((**p)->name, name))
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return **p;
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return 0;
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}
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/* Lookup a typedef or primitive type named NAME,
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@ -304,9 +281,12 @@ lookup_typename (name, block, noerr)
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{
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struct type *tmp;
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tmp = lookup_primitive_typename (name);
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if (!tmp && noerr)
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if(tmp)
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return tmp;
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else if (!tmp && noerr)
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return 0;
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error ("No type named %s.", name);
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else
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error ("No type named %s.", name);
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}
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return SYMBOL_TYPE (sym);
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}
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@ -315,16 +295,11 @@ struct type *
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lookup_unsigned_typename (name)
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char *name;
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{
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if (!strcmp (name, "int"))
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return builtin_type_unsigned_int;
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if (!strcmp (name, "long"))
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return builtin_type_unsigned_long;
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if (!strcmp (name, "short"))
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return builtin_type_unsigned_short;
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if (!strcmp (name, "char"))
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return builtin_type_unsigned_char;
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error ("No type named unsigned %s.", name);
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return (struct type *)-1; /* for lint */
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char *uns = alloca (strlen(name) + 10);
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strcpy (uns, "unsigned ");
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strcpy (uns+9, name);
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return lookup_typename (uns, (struct block *)0, 0);
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}
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/* Lookup a structure type named "struct NAME",
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@ -752,6 +727,7 @@ create_array_type (element_type, number)
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{
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struct type *result_type = (struct type *)
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obstack_alloc (symbol_obstack, sizeof (struct type));
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struct type *range_type;
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bzero (result_type, sizeof (struct type));
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@ -761,7 +737,27 @@ create_array_type (element_type, number)
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TYPE_NFIELDS (result_type) = 1;
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TYPE_FIELDS (result_type) =
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(struct field *) obstack_alloc (symbol_obstack, sizeof (struct field));
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TYPE_FIELD_TYPE (result_type, 0) = builtin_type_int;
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{
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/* Create range type. */
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range_type = (struct type *) obstack_alloc (symbol_obstack,
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sizeof (struct type));
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TYPE_CODE (range_type) = TYPE_CODE_RANGE;
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TYPE_TARGET_TYPE (range_type) = builtin_type_int; /* FIXME */
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/* This should never be needed. */
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TYPE_LENGTH (range_type) = sizeof (int);
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TYPE_NFIELDS (range_type) = 2;
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TYPE_FIELDS (range_type) =
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(struct field *) obstack_alloc (symbol_obstack,
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2 * sizeof (struct field));
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TYPE_FIELD_BITPOS (range_type, 0) = 0; /* FIXME */
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TYPE_FIELD_BITPOS (range_type, 1) = number-1; /* FIXME */
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TYPE_FIELD_TYPE (range_type, 0) = builtin_type_int; /* FIXME */
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TYPE_FIELD_TYPE (range_type, 1) = builtin_type_int; /* FIXME */
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}
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TYPE_FIELD_TYPE(result_type,0)=range_type;
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TYPE_VPTR_FIELDNO (result_type) = -1;
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return result_type;
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@ -1004,6 +1000,8 @@ lookup_symbol (name, block, namespace, is_a_field_of_this, symtab)
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if (ind != -1)
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{
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s = find_pc_symtab (misc_function_vector[ind].address);
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/* If S is zero, there are no debug symbols for this file.
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Skip this stuff and check for matching static symbols below. */
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if (s)
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{
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bv = BLOCKVECTOR (s);
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@ -1381,7 +1379,8 @@ find_pc_symtab (pc)
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{
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ps = find_pc_psymtab (pc);
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if (ps && ps->readin)
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fatal ("Internal error: pc in read in psymtab, but not in symtab.");
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printf_filtered (
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"(Internal error: pc in read in psymtab, but not in symtab.)\n");
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if (ps)
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s = PSYMTAB_TO_SYMTAB (ps);
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@ -2081,8 +2080,6 @@ decode_line_1 (argptr, funfirstline, default_symtab, default_line)
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if (s == 0 && default_symtab == 0)
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{
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if (symtab_list == 0 && partial_symtab_list == 0)
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error (no_symtab_msg);
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select_source_symtab (0);
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default_symtab = current_source_symtab;
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default_line = current_source_line;
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@ -2188,9 +2185,6 @@ decode_line_1 (argptr, funfirstline, default_symtab, default_line)
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error ("Line number not known for symbol \"%s\"", copy);
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}
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if (symtab_list == 0 && partial_symtab_list == 0)
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error (no_symtab_msg);
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if ((i = lookup_misc_func (copy)) >= 0)
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{
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val.symtab = 0;
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@ -2204,6 +2198,9 @@ decode_line_1 (argptr, funfirstline, default_symtab, default_line)
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return values;
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}
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if (symtab_list == 0 && partial_symtab_list == 0 && misc_function_count == 0)
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error (no_symtab_msg);
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error ("Function %s not defined.", copy);
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return values; /* for lint */
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}
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@ -2439,6 +2436,7 @@ sources_info ()
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If CLASS is zero, list all symbols except functions and type names.
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If CLASS is 1, list only functions.
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If CLASS is 2, list only type names.
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If CLASS is 3, list only method names.
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BPT is non-zero if we should set a breakpoint at the functions
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we find. */
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@ -2461,6 +2459,13 @@ list_symbols (regexp, class, bpt)
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static char *classnames[]
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= {"variable", "function", "type", "method"};
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int found_in_file = 0;
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int found_misc = 0;
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static enum misc_function_type types[]
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= {mf_data, mf_text, mf_abs, mf_unknown};
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static enum misc_function_type types2[]
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= {mf_bss, mf_text, mf_abs, mf_unknown};
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enum misc_function_type ourtype = types[class];
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enum misc_function_type ourtype2 = types2[class];
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if (regexp)
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if (0 != (val = re_comp (regexp)))
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@ -2504,7 +2509,7 @@ list_symbols (regexp, class, bpt)
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load the file and go on to the next one */
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if ((regexp == 0 || re_exec (SYMBOL_NAME (psym)))
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&& ((class == 0 && SYMBOL_CLASS (psym) != LOC_TYPEDEF
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&& SYMBOL_CLASS (psym) != LOC_BLOCK)
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&& SYMBOL_CLASS (psym) != LOC_BLOCK)
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|| (class == 1 && SYMBOL_CLASS (psym) == LOC_BLOCK)
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|| (class == 2 && SYMBOL_CLASS (psym) == LOC_TYPEDEF)
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|| (class == 3 && SYMBOL_CLASS (psym) == LOC_BLOCK)))
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@ -2517,20 +2522,23 @@ list_symbols (regexp, class, bpt)
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}
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}
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/* Here, *if* the class is correct (function only, right now), we
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search through the misc function vector for symbols that
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/* Here, we search through the misc function vector for functions that
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match, and call find_pc_symtab on them to force their symbols to
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be read. The symbol will then be found during the scan of symtabs
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below. */
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below. If find_pc_symtab fails, set found_misc so that we will
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rescan to print any matching symbols without debug info. */
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if (class == 1)
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{
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for (i = 0; i < misc_function_count; i++)
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if (regexp == 0 || re_exec (misc_function_vector[i].name))
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{
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(void) find_pc_symtab (misc_function_vector[i].address);
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}
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if (class == 1) {
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for (i = 0; i < misc_function_count; i++) {
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if (misc_function_vector[i].type != ourtype
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&& misc_function_vector[i].type != ourtype2)
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continue;
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if (regexp == 0 || re_exec (misc_function_vector[i].name)) {
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if (0 == find_pc_symtab (misc_function_vector[i].address))
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found_misc = 1;
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}
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}
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}
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/* Printout here so as to get after the "Reading in symbols"
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messages which will be generated above. */
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@ -2563,7 +2571,7 @@ list_symbols (regexp, class, bpt)
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sym = BLOCK_SYM (b, j);
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if ((regexp == 0 || re_exec (SYMBOL_NAME (sym)))
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&& ((class == 0 && SYMBOL_CLASS (sym) != LOC_TYPEDEF
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&& SYMBOL_CLASS (sym) != LOC_BLOCK)
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&& SYMBOL_CLASS (sym) != LOC_BLOCK)
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|| (class == 1 && SYMBOL_CLASS (sym) == LOC_BLOCK)
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|| (class == 2 && SYMBOL_CLASS (sym) == LOC_TYPEDEF)
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|| (class == 3 && SYMBOL_CLASS (sym) == LOC_BLOCK)))
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@ -2584,28 +2592,27 @@ list_symbols (regexp, class, bpt)
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if (class != 2 && i == STATIC_BLOCK)
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printf_filtered ("static ");
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/* Typedef that is not a C++ class */
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if (class == 2
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&& SYMBOL_NAMESPACE (sym) != STRUCT_NAMESPACE)
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printf_filtered ("typedef ");
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if (class < 3)
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#ifndef FIXME
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/* We haven't integrated this from A. Beers yet */
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error ("typedef_print(SYMBOL_TYPE(sym),sym,stdout);");
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#else
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typedef_print(SYMBOL_TYPE(sym),sym,stdout);
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#endif
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/* variable, func, or typedef-that-is-c++-class */
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else if (class < 2 ||
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(class == 2 &&
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SYMBOL_NAMESPACE(sym) == STRUCT_NAMESPACE))
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{
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type_print (SYMBOL_TYPE (sym),
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(SYMBOL_CLASS (sym) == LOC_TYPEDEF
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? "" : SYMBOL_NAME (sym)),
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stdout, 0);
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if (class == 2
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&& SYMBOL_NAMESPACE (sym) != STRUCT_NAMESPACE
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&& (TYPE_NAME ((SYMBOL_TYPE (sym))) == 0
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|| 0 != strcmp (TYPE_NAME ((SYMBOL_TYPE (sym))),
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SYMBOL_NAME (sym))))
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{
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fputs_filtered (" ", stdout);
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fprint_symbol (stdout, SYMBOL_NAME (sym));
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}
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printf_filtered (";\n");
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type_print (SYMBOL_TYPE (sym),
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(SYMBOL_CLASS (sym) == LOC_TYPEDEF
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? "" : SYMBOL_NAME (sym)),
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stdout, 0);
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printf_filtered (";\n");
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}
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else
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{
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@ -2622,6 +2629,36 @@ list_symbols (regexp, class, bpt)
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}
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prev_bv = bv;
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}
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/* If there are no eyes, avoid all contact. I mean, if there are
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no debug symbols, then print directly from the misc_function_vector. */
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if (found_misc || class != 1) {
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found_in_file = 0;
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for (i = 0; i < misc_function_count; i++) {
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if (misc_function_vector[i].type != ourtype
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&& misc_function_vector[i].type != ourtype2)
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continue;
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if (regexp == 0 || re_exec (misc_function_vector[i].name)) {
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/* Functions: Look up by address. */
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if (class == 1)
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if (0 != find_pc_symtab (misc_function_vector[i].address))
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continue;
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/* Variables/Absolutes: Look up by name */
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if (0 != lookup_symbol (misc_function_vector[i].name,
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(struct block *)0, VAR_NAMESPACE, 0, (struct symtab **)0))
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continue;
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if (!found_in_file) {
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printf_filtered ("\nNon-debugging symbols:\n");
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found_in_file = 1;
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}
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printf_filtered (" %08x %s\n",
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misc_function_vector[i].address,
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misc_function_vector[i].name);
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}
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}
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}
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}
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static void
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@ -2663,9 +2700,8 @@ rbreak_command (regexp)
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list_symbols (regexp, 1, 1);
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}
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/* Initialize the standard C scalar types. */
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/* Helper function to initialize the standard scalar types. */
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static
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struct type *
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init_type (code, length, uns, name)
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enum type_code code;
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@ -2849,6 +2885,51 @@ make_symbol_completion_list (text)
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return (return_val);
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}
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#if 0
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/* Add the type of the symbol sym to the type of the current
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function whose block we are in (assumed). The type of
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this current function is contained in *TYPE.
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This basically works as follows: When we find a function
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symbol (N_FUNC with a 'f' or 'F' in the symbol name), we record
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a pointer to its type in the global in_function_type. Every
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time we come across a parameter symbol ('p' in its name), then
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this procedure adds the name and type of that parameter
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to the function type pointed to by *TYPE. (Which should correspond
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to in_function_type if it was called correctly).
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Note that since we are modifying a type, the result of
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lookup_function_type() should be bcopy()ed before calling
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this. When not in strict typing mode, the expression
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evaluator can choose to ignore this.
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Assumption: All of a function's parameter symbols will
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appear before another function symbol is found. The parameters
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appear in the same order in the argument list as they do in the
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symbol table. */
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void
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add_param_to_type (type,sym)
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struct type **type;
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struct symbol *sym;
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{
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int num = ++(TYPE_NFIELDS(*type));
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if(TYPE_NFIELDS(*type)-1)
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TYPE_FIELDS(*type) =
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(struct field *)xrealloc((char *)(TYPE_FIELDS(*type)),
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num*sizeof(struct field));
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else
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TYPE_FIELDS(*type) =
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(struct field *)xmalloc(num*sizeof(struct field));
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TYPE_FIELD_BITPOS(*type,num-1) = num-1;
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TYPE_FIELD_BITSIZE(*type,num-1) = 0;
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TYPE_FIELD_TYPE(*type,num-1) = SYMBOL_TYPE(sym);
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TYPE_FIELD_NAME(*type,num-1) = SYMBOL_NAME(sym);
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}
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#endif
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void
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_initialize_symtab ()
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{
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@ -2881,31 +2962,6 @@ are listed.");
|
||||
add_com ("rbreak", no_class, rbreak_command,
|
||||
"Set a breakpoint for all functions matching REGEXP.");
|
||||
|
||||
/* FIXME: The code below assumes that the sizes of the basic data
|
||||
types are the same on the host and target machines!!! */
|
||||
|
||||
builtin_type_void = init_type (TYPE_CODE_VOID, 1, 0, "void");
|
||||
|
||||
builtin_type_float = init_type (TYPE_CODE_FLT, sizeof (float), 0, "float");
|
||||
builtin_type_double = init_type (TYPE_CODE_FLT, sizeof (double), 0, "double");
|
||||
|
||||
builtin_type_char = init_type (TYPE_CODE_INT, sizeof (char), 0, "char");
|
||||
builtin_type_short = init_type (TYPE_CODE_INT, sizeof (short), 0, "short");
|
||||
builtin_type_long = init_type (TYPE_CODE_INT, sizeof (long), 0, "long");
|
||||
builtin_type_int = init_type (TYPE_CODE_INT, sizeof (int), 0, "int");
|
||||
|
||||
builtin_type_unsigned_char = init_type (TYPE_CODE_INT, sizeof (char), 1, "unsigned char");
|
||||
builtin_type_unsigned_short = init_type (TYPE_CODE_INT, sizeof (short), 1, "unsigned short");
|
||||
builtin_type_unsigned_long = init_type (TYPE_CODE_INT, sizeof (long), 1, "unsigned long");
|
||||
builtin_type_unsigned_int = init_type (TYPE_CODE_INT, sizeof (int), 1, "unsigned int");
|
||||
|
||||
builtin_type_long_long =
|
||||
init_type (TYPE_CODE_INT, TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT,
|
||||
0, "long long");
|
||||
builtin_type_unsigned_long_long =
|
||||
init_type (TYPE_CODE_INT, TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT,
|
||||
1, "unsigned long long");
|
||||
|
||||
/* Initialize the one built-in type that isn't language dependent... */
|
||||
builtin_type_error = init_type (TYPE_CODE_ERROR, 0, 0, "<unknown type>");
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user