/* Symbol table lookup for the GNU debugger, GDB.
- Copyright 1986, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 1997
+ Copyright 1986, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 1998
Free Software Foundation, Inc.
This file is part of GDB.
/* Prototypes for local functions */
-static int
-find_methods PARAMS ((struct type *, char *, struct symbol **));
+static int find_methods PARAMS ((struct type *, char *, struct symbol **));
-static void
-completion_list_add_name PARAMS ((char *, char *, int, char *, char *));
+static void completion_list_add_name PARAMS ((char *, char *, int, char *,
+ char *));
-static void
-build_canonical_line_spec PARAMS ((struct symtab_and_line *, char *, char ***));
+static void build_canonical_line_spec PARAMS ((struct symtab_and_line *,
+ char *, char ***));
-static struct symtabs_and_lines
-decode_line_2 PARAMS ((struct symbol *[], int, int, char ***));
+static struct symtabs_and_lines decode_line_2 PARAMS ((struct symbol *[],
+ int, int, char ***));
-static void
-rbreak_command PARAMS ((char *, int));
+static void rbreak_command PARAMS ((char *, int));
-static void
-types_info PARAMS ((char *, int));
+static void types_info PARAMS ((char *, int));
-static void
-functions_info PARAMS ((char *, int));
+static void functions_info PARAMS ((char *, int));
-static void
-variables_info PARAMS ((char *, int));
+static void variables_info PARAMS ((char *, int));
-static void
-sources_info PARAMS ((char *, int));
+static void sources_info PARAMS ((char *, int));
-static void
-output_source_filename PARAMS ((char *, int *));
+static void output_source_filename PARAMS ((char *, int *));
-char *
-operator_chars PARAMS ((char *, char **));
+char *operator_chars PARAMS ((char *, char **));
static int find_line_common PARAMS ((struct linetable *, int, int *));
-static struct partial_symbol *
-lookup_partial_symbol PARAMS ((struct partial_symtab *, const char *,
- int, namespace_enum));
+static struct partial_symbol *lookup_partial_symbol PARAMS
+ ((struct partial_symtab *, const char *,
+ int, namespace_enum));
-static struct partial_symbol *
-fixup_psymbol_section PARAMS ((struct partial_symbol *, struct objfile *));
+static struct partial_symbol *fixup_psymbol_section PARAMS ((struct
+ partial_symbol *, struct objfile *));
-static struct symtab *
-lookup_symtab_1 PARAMS ((char *));
+static struct symtab *lookup_symtab_1 PARAMS ((char *));
-static void
-cplusplus_hint PARAMS ((char *));
+static void cplusplus_hint PARAMS ((char *));
-static struct symbol *
-find_active_alias PARAMS ((struct symbol *sym, CORE_ADDR addr));
+static struct symbol *find_active_alias PARAMS ((struct symbol *sym,
+ CORE_ADDR addr));
+
+/* This flag is used in hppa-tdep.c, and set in hp-symtab-read.c */
+/* Signals the presence of objects compiled by HP compilers */
+int hp_som_som_object_present = 0;
+
+static void fixup_section PARAMS ((struct general_symbol_info *,
+ struct objfile *));
+
+static int file_matches PARAMS ((char *, char **, int));
+
+static void print_symbol_info PARAMS ((namespace_enum,
+ struct symtab *, struct symbol *,
+ int, char *));
+
+static void print_msymbol_info PARAMS ((struct minimal_symbol *));
+
+static void symtab_symbol_info PARAMS ((char *, namespace_enum, int));
+
+void _initialize_symtab PARAMS ((void));
/* */
if (!psymtab)
return 0;
- best_pc = psymtab->textlow - 1;
+ /* Cope with programs that start at address 0 */
+ best_pc = (psymtab->textlow != 0) ? psymtab->textlow - 1 : 0;
/* Search the global symbols as well as the static symbols, so that
find_pc_partial_function doesn't use a minimal symbol and thus
if (SYMBOL_NAMESPACE (p) == VAR_NAMESPACE
&& SYMBOL_CLASS (p) == LOC_BLOCK
&& pc >= SYMBOL_VALUE_ADDRESS (p)
- && SYMBOL_VALUE_ADDRESS (p) > best_pc)
+ && (SYMBOL_VALUE_ADDRESS (p) > best_pc
+ || (psymtab->textlow == 0
+ && best_pc == 0 && SYMBOL_VALUE_ADDRESS (p) == 0)))
{
if (section) /* match on a specific section */
{
best = p;
}
}
+
for (pp = psymtab->objfile->static_psymbols.list + psymtab->statics_offset;
(pp - (psymtab->objfile->static_psymbols.list + psymtab->statics_offset)
< psymtab->n_static_syms);
if (SYMBOL_NAMESPACE (p) == VAR_NAMESPACE
&& SYMBOL_CLASS (p) == LOC_BLOCK
&& pc >= SYMBOL_VALUE_ADDRESS (p)
- && SYMBOL_VALUE_ADDRESS (p) > best_pc)
+ && (SYMBOL_VALUE_ADDRESS (p) > best_pc
+ || (psymtab->textlow == 0
+ && best_pc == 0 && SYMBOL_VALUE_ADDRESS (p) == 0)))
{
if (section) /* match on a specific section */
{
best = p;
}
}
- if (best_pc == psymtab->textlow - 1)
- return 0;
+
return best;
}
return (NULL);
}
+/* Look up a type named NAME in the struct_namespace. The type returned
+ must not be opaque -- i.e., must have at least one field defined
+
+ This code was modelled on lookup_symbol -- the parts not relevant to looking
+ up types were just left out. In particular it's assumed here that types
+ are available in struct_namespace and only at file-static or global blocks. */
+
+
+struct type *
+lookup_transparent_type (name)
+ const char *name;
+{
+ register struct symbol *sym;
+ register struct symtab *s = NULL;
+ register struct partial_symtab *ps;
+ struct blockvector *bv;
+ register struct objfile *objfile;
+ register struct block *block;
+ register struct minimal_symbol *msymbol;
+
+ /* Now search all the global symbols. Do the symtab's first, then
+ check the psymtab's. If a psymtab indicates the existence
+ of the desired name as a global, then do psymtab-to-symtab
+ conversion on the fly and return the found symbol. */
+
+ ALL_SYMTABS (objfile, s)
+ {
+ bv = BLOCKVECTOR (s);
+ block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
+ sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
+ if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym)))
+ {
+ return SYMBOL_TYPE (sym);
+ }
+ }
+
+ ALL_PSYMTABS (objfile, ps)
+ {
+ if (!ps->readin && lookup_partial_symbol (ps, name, 1, STRUCT_NAMESPACE))
+ {
+ s = PSYMTAB_TO_SYMTAB(ps);
+ bv = BLOCKVECTOR (s);
+ block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
+ sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
+ if (!sym)
+ {
+ /* This shouldn't be necessary, but as a last resort
+ * try looking in the statics even though the psymtab
+ * claimed the symbol was global. It's possible that
+ * the psymtab gets it wrong in some cases.
+ */
+ block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
+ sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
+ if (!sym)
+ error ("Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\
+%s may be an inlined function, or may be a template function\n\
+(if a template, try specifying an instantiation: %s<type>).",
+ name, ps->filename, name, name);
+ }
+ if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym)))
+ return SYMBOL_TYPE (sym);
+ }
+ }
+
+ /* Now search the static file-level symbols.
+ Not strictly correct, but more useful than an error.
+ Do the symtab's first, then
+ check the psymtab's. If a psymtab indicates the existence
+ of the desired name as a file-level static, then do psymtab-to-symtab
+ conversion on the fly and return the found symbol.
+ */
+
+ ALL_SYMTABS (objfile, s)
+ {
+ bv = BLOCKVECTOR (s);
+ block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
+ sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
+ if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym)))
+ {
+ return SYMBOL_TYPE (sym);
+ }
+ }
+
+ ALL_PSYMTABS (objfile, ps)
+ {
+ if (!ps->readin && lookup_partial_symbol (ps, name, 0, STRUCT_NAMESPACE))
+ {
+ s = PSYMTAB_TO_SYMTAB(ps);
+ bv = BLOCKVECTOR (s);
+ block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
+ sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
+ if (!sym)
+ {
+ /* This shouldn't be necessary, but as a last resort
+ * try looking in the globals even though the psymtab
+ * claimed the symbol was static. It's possible that
+ * the psymtab gets it wrong in some cases.
+ */
+ block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
+ sym = lookup_block_symbol (block, name, STRUCT_NAMESPACE);
+ if (!sym)
+ error ("Internal: static symbol `%s' found in %s psymtab but not in symtab.\n\
+%s may be an inlined function, or may be a template function\n\
+(if a template, try specifying an instantiation: %s<type>).",
+ name, ps->filename, name, name);
+ }
+ if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym)))
+ return SYMBOL_TYPE (sym);
+ }
+ }
+ return (struct type *) 0;
+}
+
+
/* Find the psymtab containing main(). */
/* FIXME: What about languages without main() or specially linked
executables that have no main() ? */
}
\f
-static int find_line_symtab PARAMS ((struct symtab *, int, struct linetable **,
- int *, int *));
+static struct symtab* find_line_symtab PARAMS ((struct symtab *, int,
+ int *, int *));
/* Find line number LINE in any symtab whose name is the same as
SYMTAB.
- If found, return 1, set *LINETABLE to the linetable in which it was
+ If found, return the symtab that contains the linetable in which it was
found, set *INDEX to the index in the linetable of the best entry
found, and set *EXACT_MATCH nonzero if the value returned is an
exact match.
- If not found, return 0. */
+ If not found, return NULL. */
-static int
-find_line_symtab (symtab, line, linetable, index, exact_match)
+static struct symtab*
+find_line_symtab (symtab, line, index, exact_match)
struct symtab *symtab;
int line;
- struct linetable **linetable;
int *index;
int *exact_match;
{
int best_index;
struct linetable *best_linetable;
+ struct symtab *best_symtab;
/* First try looking it up in the given symtab. */
best_linetable = LINETABLE (symtab);
+ best_symtab = symtab;
best_index = find_line_common (best_linetable, line, &exact);
if (best_index < 0 || !exact)
{
{
best_index = ind;
best_linetable = l;
+ best_symtab = s;
goto done;
}
if (best == 0 || l->item[ind].line < best)
best = l->item[ind].line;
best_index = ind;
best_linetable = l;
+ best_symtab = s;
}
}
}
}
done:
if (best_index < 0)
- return 0;
+ return NULL;
if (index)
*index = best_index;
- if (linetable)
- *linetable = best_linetable;
if (exact_match)
*exact_match = exact;
- return 1;
+
+ return best_symtab;
}
\f
/* Set the PC value for a given source file and line number and return true.
if (symtab == 0)
return 0;
- if (find_line_symtab (symtab, line, &l, &ind, NULL))
+ symtab = find_line_symtab (symtab, line, &ind, NULL);
+ if (symtab != NULL)
{
+ l = LINETABLE (symtab);
*pc = l->item[ind].pc;
return 1;
}
if (strncmp (method_name, "__", 2) == 0 ||
strncmp (method_name, "op", 2) == 0 ||
strncmp (method_name, "type", 4) == 0)
- if (cplus_demangle_opname (method_name, dem_opname, DMGL_ANSI))
- method_name = dem_opname;
- else if (cplus_demangle_opname (method_name, dem_opname, 0))
- method_name = dem_opname;
+ {
+ if (cplus_demangle_opname (method_name, dem_opname, DMGL_ANSI))
+ method_name = dem_opname;
+ else if (cplus_demangle_opname (method_name, dem_opname, 0))
+ method_name = dem_opname;
+ }
if (STREQ (name, method_name))
/* Find all the overloaded methods with that name. */
*argptr = q;
if (s == 0)
s = default_symtab;
- val.symtab = s;
+
+ /* It is possible that this source file has more than one symtab,
+ and that the new line number specification has moved us from the
+ default (in s) to a new one. */
+ val.symtab = find_line_symtab (s, val.line, NULL, NULL);
+ if (val.symtab == 0)
+ val.symtab = s;
+
val.pc = 0;
values.sals = (struct symtab_and_line *)
xmalloc (sizeof (struct symtab_and_line));
msymbol = lookup_minimal_symbol (copy, NULL, NULL);
if (msymbol != NULL)
{
- val.pc = SYMBOL_VALUE_ADDRESS (msymbol);
- val.section = SYMBOL_BFD_SECTION (msymbol);
+ values.sals = (struct symtab_and_line *)
+ xmalloc (sizeof (struct symtab_and_line));
+ values.sals[0] = find_pc_sect_line ( SYMBOL_VALUE_ADDRESS (msymbol),
+ (struct sec *)0,0 );
+ values.sals[0].section = SYMBOL_BFD_SECTION (msymbol);
if (funfirstline)
{
- val.pc += FUNCTION_START_OFFSET;
- SKIP_PROLOGUE (val.pc);
+ values.sals[0].pc += FUNCTION_START_OFFSET;
+ SKIP_PROLOGUE (values.sals[0].pc);
}
- values.sals = (struct symtab_and_line *)
- xmalloc (sizeof (struct symtab_and_line));
- values.sals[0] = val;
values.nelts = 1;
return values;
}
if ((prompt = getenv ("PS2")) == NULL)
{
- prompt = ">";
+ prompt = "> ";
}
- printf_unfiltered("%s ",prompt);
- gdb_flush(gdb_stdout);
-
- args = command_line_input ((char *) NULL, 0, "overload-choice");
+ args = command_line_input (prompt, 0, "overload-choice");
if (args == 0 || *args == 0)
error_no_arg ("one or more choice numbers");
register struct blockvector *bv;
struct blockvector *prev_bv = 0;
register struct block *b;
- register int i, j;
+ register int i = 0;
+ register int j;
register struct symbol *sym;
struct partial_symbol **psym;
struct objfile *objfile;
if (tail == NULL)
{
sr = psr;
- old_chain = make_cleanup (free_search_symbols, sr);
+ old_chain = make_cleanup ((make_cleanup_func)
+ free_search_symbols, sr);
}
else
tail->next = psr;
if (tail == NULL)
{
sr = psr;
- old_chain = make_cleanup (free_search_symbols, &sr);
+ old_chain = make_cleanup ((make_cleanup_func)
+ free_search_symbols, &sr);
}
else
tail->next = psr;
the data returned from search_symbols() to print information
regarding the match to gdb_stdout.
*/
-static int
+static void
print_symbol_info (kind, s, sym, block, last)
namespace_enum kind;
struct symtab *s;
/* must make sure that if we're interrupted, symbols gets freed */
search_symbols (regexp, kind, 0, (char **) NULL, &symbols);
- old_chain = make_cleanup (free_search_symbols, symbols);
+ old_chain = make_cleanup ((make_cleanup_func) free_search_symbols, symbols);
printf_filtered (regexp
? "All %ss matching regular expression \"%s\":\n"
struct cleanup *old_chain;
search_symbols (regexp, FUNCTIONS_NAMESPACE, 0, (char **) NULL, &ss);
- old_chain = make_cleanup (free_search_symbols, ss);
+ old_chain = make_cleanup ((make_cleanup_func) free_search_symbols, ss);
for (p = ss; p != NULL; p = p->next)
{
projects / deliverable / binutils-gdb.git / blobdiff