/* Parser for linespec for the GNU debugger, GDB.
- Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
- 1996, 1997, 1998, 1999, 2000, 2001
- Free Software Foundation, Inc.
+
+ Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
+ 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008,
+ 2009, 2010, 2011 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "symtab.h"
#include "value.h"
#include "completer.h"
#include "cp-abi.h"
+#include "cp-support.h"
#include "parser-defs.h"
-
-/* We share this one with symtab.c, but it is not exported widely. */
+#include "block.h"
+#include "objc-lang.h"
+#include "linespec.h"
+#include "exceptions.h"
+#include "language.h"
+#include "interps.h"
+#include "mi/mi-cmds.h"
+#include "target.h"
+#include "arch-utils.h"
+
+/* We share this one with symtab.c, but it is not exported widely. */
extern char *operator_chars (char *, char **);
-/* Prototypes for local functions */
+/* Prototypes for local functions. */
static void initialize_defaults (struct symtab **default_symtab,
int *default_line);
-static void set_flags (char *arg, int *is_quoted, char **paren_pointer);
-
static struct symtabs_and_lines decode_indirect (char **argptr);
static char *locate_first_half (char **argptr, int *is_quote_enclosed);
+static struct symtabs_and_lines decode_objc (char **argptr,
+ int funfirstline,
+ struct symtab *file_symtab,
+ char ***canonical,
+ char *saved_arg);
+
static struct symtabs_and_lines decode_compound (char **argptr,
int funfirstline,
char ***canonical,
char *saved_arg,
- char *p);
+ char *p,
+ int *not_found_ptr);
-static NORETURN void cplusplus_error (const char *name,
- const char *fmt, ...)
- ATTR_NORETURN ATTR_FORMAT (printf, 2, 3);
+static struct symbol *lookup_prefix_sym (char **argptr, char *p);
+
+static struct symtabs_and_lines find_method (int funfirstline,
+ char ***canonical,
+ char *saved_arg,
+ char *copy,
+ struct type *t,
+ struct symbol *sym_class,
+ int *not_found_ptr);
+
+static void cplusplus_error (const char *name, const char *fmt, ...)
+ ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (2, 3);
static int total_number_of_methods (struct type *type);
-static int find_methods (struct type *, char *, struct symbol **);
+static int find_methods (struct type *, char *,
+ enum language, struct symbol **);
+
+static int add_matching_methods (int method_counter, struct type *t,
+ enum language language,
+ struct symbol **sym_arr);
+
+static int add_constructors (int method_counter, struct type *t,
+ enum language language,
+ struct symbol **sym_arr);
static void build_canonical_line_spec (struct symtab_and_line *,
char *, char ***);
static char *find_toplevel_char (char *s, char c);
+static int is_objc_method_format (const char *s);
+
static struct symtabs_and_lines decode_line_2 (struct symbol *[],
int, int, char ***);
+static struct symtab *symtab_from_filename (char **argptr,
+ char *p, int is_quote_enclosed,
+ int *not_found_ptr);
+
+static struct
+symtabs_and_lines decode_all_digits (char **argptr,
+ struct symtab *default_symtab,
+ int default_line,
+ char ***canonical,
+ struct symtab *file_symtab,
+ char *q);
+
+static struct symtabs_and_lines decode_dollar (char *copy,
+ int funfirstline,
+ struct symtab *default_symtab,
+ char ***canonical,
+ struct symtab *file_symtab);
+
+static int decode_label (char *copy, char ***canonical,
+ struct symtabs_and_lines *result);
+
+static struct symtabs_and_lines decode_variable (char *copy,
+ int funfirstline,
+ char ***canonical,
+ struct symtab *file_symtab,
+ int *not_found_ptr);
+
static struct
symtabs_and_lines symbol_found (int funfirstline,
char ***canonical,
char *copy,
struct symbol *sym,
- struct symtab *s,
- struct symtab *sym_symtab);
+ struct symtab *file_symtab);
static struct
symtabs_and_lines minsym_found (int funfirstline,
struct minimal_symbol *msymbol);
-/* Helper functions. */
+/* Helper functions. */
/* Issue a helpful hint on using the command completion feature on
single quoted demangled C++ symbols as part of the completion
error. */
-static NORETURN void
+static void
cplusplus_error (const char *name, const char *fmt, ...)
{
struct ui_file *tmp_stream;
+ char *message;
+
tmp_stream = mem_fileopen ();
make_cleanup_ui_file_delete (tmp_stream);
{
va_list args;
+
va_start (args, fmt);
vfprintf_unfiltered (tmp_stream, fmt, args);
va_end (args);
("Hint: try '%s<TAB> or '%s<ESC-?>\n"
"(Note leading single quote.)"),
name, name);
- error_stream (tmp_stream);
+
+ message = ui_file_xstrdup (tmp_stream, NULL);
+ make_cleanup (xfree, message);
+ throw_error (NOT_FOUND_ERROR, "%s", message);
}
/* Return the number of methods described for TYPE, including the
- methods from types it derives from. This can't be done in the symbol
+ methods from types it derives from. This can't be done in the symbol
reader because the type of the baseclass might still be stubbed
when the definition of the derived class is parsed. */
int count;
CHECK_TYPEDEF (type);
- if (TYPE_CPLUS_SPECIFIC (type) == NULL)
+ if (! HAVE_CPLUS_STRUCT (type))
return 0;
count = TYPE_NFN_FIELDS_TOTAL (type);
Note that this function is g++ specific. */
static int
-find_methods (struct type *t, char *name, struct symbol **sym_arr)
+find_methods (struct type *t, char *name, enum language language,
+ struct symbol **sym_arr)
{
int i1 = 0;
int ibase;
unless we figure out how to get the physname without the name of
the class, then the loop can't do any good. */
if (class_name
- && (lookup_symbol (class_name, (struct block *) NULL,
- STRUCT_NAMESPACE, (int *) NULL,
- (struct symtab **) NULL)))
+ && (lookup_symbol_in_language (class_name, (struct block *) NULL,
+ STRUCT_DOMAIN, language, (int *) NULL)))
{
int method_counter;
int name_len = strlen (name);
method_counter >= 0;
--method_counter)
{
- int field_counter;
char *method_name = TYPE_FN_FIELDLIST_NAME (t, method_counter);
char dem_opname[64];
if (strcmp_iw (name, method_name) == 0)
/* Find all the overloaded methods with that name. */
- for (field_counter = TYPE_FN_FIELDLIST_LENGTH (t, method_counter) - 1;
- field_counter >= 0;
- --field_counter)
- {
- struct fn_field *f;
- char *phys_name;
-
- f = TYPE_FN_FIELDLIST1 (t, method_counter);
-
- if (TYPE_FN_FIELD_STUB (f, field_counter))
- {
- char *tmp_name;
-
- tmp_name = gdb_mangle_name (t,
- method_counter,
- field_counter);
- phys_name = alloca (strlen (tmp_name) + 1);
- strcpy (phys_name, tmp_name);
- xfree (tmp_name);
- }
- else
- phys_name = TYPE_FN_FIELD_PHYSNAME (f, field_counter);
-
- /* Destructor is handled by caller, dont add it to the list */
- if (is_destructor_name (phys_name) != 0)
- continue;
-
- sym_arr[i1] = lookup_symbol (phys_name,
- NULL, VAR_NAMESPACE,
- (int *) NULL,
- (struct symtab **) NULL);
- if (sym_arr[i1])
- i1++;
- else
- {
- /* This error message gets printed, but the method
- still seems to be found
- fputs_filtered("(Cannot find method ", gdb_stdout);
- fprintf_symbol_filtered (gdb_stdout, phys_name,
- language_cplus,
- DMGL_PARAMS | DMGL_ANSI);
- fputs_filtered(" - possibly inlined.)\n", gdb_stdout);
- */
- }
- }
+ i1 += add_matching_methods (method_counter, t, language,
+ sym_arr + i1);
else if (strncmp (class_name, name, name_len) == 0
&& (class_name[name_len] == '\0'
|| class_name[name_len] == '<'))
- {
- /* For GCC 3.x and stabs, constructors and destructors have names
- like __base_ctor and __complete_dtor. Check the physname for now
- if we're looking for a constructor. */
- for (field_counter
- = TYPE_FN_FIELDLIST_LENGTH (t, method_counter) - 1;
- field_counter >= 0;
- --field_counter)
- {
- struct fn_field *f;
- char *phys_name;
-
- f = TYPE_FN_FIELDLIST1 (t, method_counter);
-
- /* GCC 3.x will never produce stabs stub methods, so we don't need
- to handle this case. */
- if (TYPE_FN_FIELD_STUB (f, field_counter))
- continue;
- phys_name = TYPE_FN_FIELD_PHYSNAME (f, field_counter);
- if (! is_constructor_name (phys_name))
- continue;
-
- /* If this method is actually defined, include it in the
- list. */
- sym_arr[i1] = lookup_symbol (phys_name,
- NULL, VAR_NAMESPACE,
- (int *) NULL,
- (struct symtab **) NULL);
- if (sym_arr[i1])
- i1++;
- }
- }
+ i1 += add_constructors (method_counter, t, language,
+ sym_arr + i1);
}
}
if (i1 == 0)
for (ibase = 0; ibase < TYPE_N_BASECLASSES (t); ibase++)
- i1 += find_methods (TYPE_BASECLASS (t, ibase), name, sym_arr + i1);
+ i1 += find_methods (TYPE_BASECLASS (t, ibase), name,
+ language, sym_arr + i1);
+
+ return i1;
+}
+
+/* Add the symbols associated to methods of the class whose type is T
+ and whose name matches the method indexed by METHOD_COUNTER in the
+ array SYM_ARR. Return the number of methods added. */
+
+static int
+add_matching_methods (int method_counter, struct type *t,
+ enum language language, struct symbol **sym_arr)
+{
+ int field_counter;
+ int i1 = 0;
+
+ for (field_counter = TYPE_FN_FIELDLIST_LENGTH (t, method_counter) - 1;
+ field_counter >= 0;
+ --field_counter)
+ {
+ struct fn_field *f;
+ char *phys_name;
+
+ f = TYPE_FN_FIELDLIST1 (t, method_counter);
+
+ if (TYPE_FN_FIELD_STUB (f, field_counter))
+ {
+ char *tmp_name;
+
+ tmp_name = gdb_mangle_name (t,
+ method_counter,
+ field_counter);
+ phys_name = alloca (strlen (tmp_name) + 1);
+ strcpy (phys_name, tmp_name);
+ xfree (tmp_name);
+ }
+ else
+ phys_name = TYPE_FN_FIELD_PHYSNAME (f, field_counter);
+
+ sym_arr[i1] = lookup_symbol_in_language (phys_name,
+ NULL, VAR_DOMAIN,
+ language,
+ (int *) NULL);
+ if (sym_arr[i1])
+ i1++;
+ else
+ {
+ /* This error message gets printed, but the method
+ still seems to be found.
+ fputs_filtered("(Cannot find method ", gdb_stdout);
+ fprintf_symbol_filtered (gdb_stdout, phys_name,
+ language_cplus,
+ DMGL_PARAMS | DMGL_ANSI);
+ fputs_filtered(" - possibly inlined.)\n", gdb_stdout);
+ */
+ }
+ }
+
+ return i1;
+}
+
+/* Add the symbols associated to constructors of the class whose type
+ is CLASS_TYPE and which are indexed by by METHOD_COUNTER to the
+ array SYM_ARR. Return the number of methods added. */
+
+static int
+add_constructors (int method_counter, struct type *t,
+ enum language language, struct symbol **sym_arr)
+{
+ int field_counter;
+ int i1 = 0;
+
+ /* For GCC 3.x and stabs, constructors and destructors
+ have names like __base_ctor and __complete_dtor.
+ Check the physname for now if we're looking for a
+ constructor. */
+ for (field_counter
+ = TYPE_FN_FIELDLIST_LENGTH (t, method_counter) - 1;
+ field_counter >= 0;
+ --field_counter)
+ {
+ struct fn_field *f;
+ char *phys_name;
+
+ f = TYPE_FN_FIELDLIST1 (t, method_counter);
+
+ /* GCC 3.x will never produce stabs stub methods, so
+ we don't need to handle this case. */
+ if (TYPE_FN_FIELD_STUB (f, field_counter))
+ continue;
+ phys_name = TYPE_FN_FIELD_PHYSNAME (f, field_counter);
+ if (! is_constructor_name (phys_name))
+ continue;
+
+ /* If this method is actually defined, include it in the
+ list. */
+ sym_arr[i1] = lookup_symbol_in_language (phys_name,
+ NULL, VAR_DOMAIN,
+ language,
+ (int *) NULL);
+ if (sym_arr[i1])
+ i1++;
+ }
return i1;
}
int quoted = 0; /* zero if we're not in quotes;
'"' if we're in a double-quoted string;
'\'' if we're in a single-quoted string. */
- int depth = 0; /* number of unclosed parens we've seen */
+ int depth = 0; /* Number of unclosed parens we've seen. */
char *scan;
for (scan = s; *scan; scan++)
return 0;
}
+/* Determines if the gives string corresponds to an Objective-C method
+ representation, such as -[Foo bar:] or +[Foo bar]. Objective-C symbols
+ are allowed to have spaces and parentheses in them. */
+
+static int
+is_objc_method_format (const char *s)
+{
+ if (s == NULL || *s == '\0')
+ return 0;
+ /* Handle arguments with the format FILENAME:SYMBOL. */
+ if ((s[0] == ':') && (strchr ("+-", s[1]) != NULL)
+ && (s[2] == '[') && strchr(s, ']'))
+ return 1;
+ /* Handle arguments that are just SYMBOL. */
+ else if ((strchr ("+-", s[0]) != NULL) && (s[1] == '[') && strchr(s, ']'))
+ return 1;
+ return 0;
+}
+
/* Given a list of NELTS symbols in SYM_ARR, return a list of lines to
operate on (ask user if necessary).
If CANONICAL is non-NULL return a corresponding array of mangled names
char *symname;
struct cleanup *old_chain;
char **canonical_arr = (char **) NULL;
+ const char *select_mode = multiple_symbols_select_mode ();
+ if (select_mode == multiple_symbols_cancel)
+ error (_("canceled because the command is ambiguous\n"
+ "See set/show multiple-symbol."));
+
values.sals = (struct symtab_and_line *)
alloca (nelts * sizeof (struct symtab_and_line));
return_values.sals = (struct symtab_and_line *)
}
i = 0;
- printf_unfiltered ("[0] cancel\n[1] all\n");
while (i < nelts)
{
- init_sal (&return_values.sals[i]); /* initialize to zeroes */
+ init_sal (&return_values.sals[i]); /* Initialize to zeroes. */
init_sal (&values.sals[i]);
if (sym_arr[i] && SYMBOL_CLASS (sym_arr[i]) == LOC_BLOCK)
- {
- values.sals[i] = find_function_start_sal (sym_arr[i], funfirstline);
- printf_unfiltered ("[%d] %s at %s:%d\n",
- (i + 2),
- SYMBOL_SOURCE_NAME (sym_arr[i]),
- values.sals[i].symtab->filename,
- values.sals[i].line);
- }
- else
- printf_unfiltered ("?HERE\n");
+ values.sals[i] = find_function_start_sal (sym_arr[i], funfirstline);
i++;
}
- if ((prompt = getenv ("PS2")) == NULL)
+ /* If select_mode is "all", then do not print the multiple-choice
+ menu and act as if the user had chosen choice "1" (all). */
+ if (select_mode == multiple_symbols_all
+ || ui_out_is_mi_like_p (interp_ui_out (top_level_interpreter ())))
+ args = "1";
+ else
{
- prompt = "> ";
+ i = 0;
+ printf_unfiltered (_("[0] cancel\n[1] all\n"));
+ while (i < nelts)
+ {
+ if (sym_arr[i] && SYMBOL_CLASS (sym_arr[i]) == LOC_BLOCK)
+ {
+ if (values.sals[i].symtab)
+ printf_unfiltered ("[%d] %s at %s:%d\n",
+ (i + 2),
+ SYMBOL_PRINT_NAME (sym_arr[i]),
+ values.sals[i].symtab->filename,
+ values.sals[i].line);
+ else
+ printf_unfiltered (_("[%d] %s at ?FILE:%d [No symtab? "
+ "Probably broken debug info...]\n"),
+ (i + 2),
+ SYMBOL_PRINT_NAME (sym_arr[i]),
+ values.sals[i].line);
+
+ }
+ else
+ printf_unfiltered (_("?HERE\n"));
+ i++;
+ }
+
+ prompt = getenv ("PS2");
+ if (prompt == NULL)
+ {
+ prompt = "> ";
+ }
+ args = command_line_input (prompt, 0, "overload-choice");
}
- args = command_line_input (prompt, 0, "overload-choice");
if (args == 0 || *args == 0)
- error_no_arg ("one or more choice numbers");
+ error_no_arg (_("one or more choice numbers"));
i = 0;
while (*args)
while (*arg1 >= '0' && *arg1 <= '9')
arg1++;
if (*arg1 && *arg1 != ' ' && *arg1 != '\t')
- error ("Arguments must be choice numbers.");
+ error (_("Arguments must be choice numbers."));
num = atoi (args);
if (num == 0)
- error ("canceled");
+ error (_("canceled"));
else if (num == 1)
{
if (canonical_arr)
{
if (canonical_arr[i] == NULL)
{
- symname = SYMBOL_NAME (sym_arr[i]);
- canonical_arr[i] = savestring (symname, strlen (symname));
+ symname = SYMBOL_LINKAGE_NAME (sym_arr[i]);
+ canonical_arr[i] = xstrdup (symname);
}
}
}
if (num >= nelts + 2)
{
- printf_unfiltered ("No choice number %d.\n", num);
+ printf_unfiltered (_("No choice number %d.\n"), num);
}
else
{
{
if (canonical_arr)
{
- symname = SYMBOL_NAME (sym_arr[num]);
+ symname = SYMBOL_LINKAGE_NAME (sym_arr[num]);
make_cleanup (xfree, symname);
- canonical_arr[i] = savestring (symname, strlen (symname));
+ canonical_arr[i] = xstrdup (symname);
}
return_values.sals[i++] = values.sals[num];
values.sals[num].pc = 0;
}
else
{
- printf_unfiltered ("duplicate request for %d ignored.\n", num);
+ printf_unfiltered (_("duplicate request for %d ignored.\n"),
+ num);
}
}
discard_cleanups (old_chain);
return return_values;
}
+
+/* A helper function for decode_line_1 and friends which skips P
+ past any method overload information at the beginning of P, e.g.,
+ "(const struct foo *)".
+
+ This function assumes that P has already been validated to contain
+ overload information, and it will assert if *P != '('. */
+static char *
+find_method_overload_end (char *p)
+{
+ int depth = 0;
+
+ gdb_assert (*p == '(');
+
+ while (*p)
+ {
+ if (*p == '(')
+ ++depth;
+ else if (*p == ')')
+ {
+ if (--depth == 0)
+ {
+ ++p;
+ break;
+ }
+ }
+ ++p;
+ }
+
+ return p;
+}
\f
-/* The parser of linespec itself. */
+/* The parser of linespec itself. */
/* Parse a string that specifies a line number.
Pass the address of a char * variable; that variable will be
FILE:LINENUM -- that line in that file. PC returned is 0.
FUNCTION -- line number of openbrace of that function.
PC returned is the start of the function.
+ LABEL -- a label in the current scope
VARIABLE -- line number of definition of that variable.
PC returned is 0.
FILE:FUNCTION -- likewise, but prefer functions in that file.
DEFAULT_LINE specifies the line number to use for relative
line numbers (that start with signs). Defaults to current_source_line.
If CANONICAL is non-NULL, store an array of strings containing the canonical
- line specs there if necessary. Currently overloaded member functions and
+ line specs there if necessary. Currently overloaded member functions and
line numbers or static functions without a filename yield a canonical
- line spec. The array and the line spec strings are allocated on the heap,
+ line spec. The array and the line spec strings are allocated on the heap,
it is the callers responsibility to free them.
Note that it is possible to return zero for the symtab
if no file is validly specified. Callers must check that.
- Also, the line number returned may be invalid. */
+ Also, the line number returned may be invalid.
+
+ If NOT_FOUND_PTR is not null, store a boolean true/false value at
+ the location, based on whether or not failure occurs due to an
+ unknown function or file. In the case where failure does occur due
+ to an unknown function or file, do not issue an error message. */
/* We allow single quotes in various places. This is a hideous
kludge, which exists because the completer can't yet deal with the
struct symtabs_and_lines
decode_line_1 (char **argptr, int funfirstline, struct symtab *default_symtab,
- int default_line, char ***canonical)
+ int default_line, char ***canonical, int *not_found_ptr)
{
- struct symtabs_and_lines values;
- struct symtab_and_line val;
- register char *p, *p1;
+ char *p;
char *q;
- register struct symtab *s = NULL;
-
- register struct symbol *sym;
- /* The symtab that SYM was found in. */
- struct symtab *sym_symtab;
+ /* If a file name is specified, this is its symtab. */
+ struct symtab *file_symtab = NULL;
- register struct minimal_symbol *msymbol;
char *copy;
- /* This is NULL if there are no parens in *ARGPTR, or a pointer to
- the closing parenthesis if there are parens. */
- char *paren_pointer;
/* This says whether or not something in *ARGPTR is quoted with
completer_quotes (i.e. with single quotes). */
int is_quoted;
- /* Is part of *ARGPTR is enclosed in double quotes? */
+ /* Is *ARGPTR is enclosed in double quotes? */
int is_quote_enclosed;
+ int is_objc_method = 0;
char *saved_arg = *argptr;
+ /* If IS_QUOTED, the end of the quoted bit. */
+ char *end_quote = NULL;
+ /* The "first half" of the linespec. */
+ char *first_half;
- init_sal (&val); /* initialize to zeroes */
+ if (not_found_ptr)
+ *not_found_ptr = 0;
/* Defaults have defaults. */
initialize_defaults (&default_symtab, &default_line);
- /* See if arg is *PC */
+ /* See if arg is *PC. */
if (**argptr == '*')
return decode_indirect (argptr);
- /* Set various flags.
- * 'paren_pointer' is important for overload checking, where
- * we allow things like:
- * (gdb) break c::f(int)
- */
-
- set_flags (*argptr, &is_quoted, &paren_pointer);
+ is_quoted = (*argptr
+ && strchr (get_gdb_completer_quote_characters (),
+ **argptr) != NULL);
+ if (is_quoted)
+ end_quote = skip_quoted (*argptr);
/* Check to see if it's a multipart linespec (with colons or
periods). */
- /* Locate the end of the first half of the linespec. */
+ /* Locate the end of the first half of the linespec.
+ After the call, for instance, if the argptr string is "foo.c:123"
+ p will point at "123". If there is only one part, like "foo", p
+ will point to "". If this is a C++ name, like "A::B::foo", p will
+ point to "::B::foo". Argptr is not changed by this call. */
+
+ first_half = p = locate_first_half (argptr, &is_quote_enclosed);
+
+ /* Check if this is an Objective-C method (anything that starts with
+ a '+' or '-' and a '['). */
+ if (is_objc_method_format (p))
+ is_objc_method = 1;
+
+ /* Check if the symbol could be an Objective-C selector. */
- p = locate_first_half (argptr, &is_quote_enclosed);
+ {
+ struct symtabs_and_lines values;
+
+ values = decode_objc (argptr, funfirstline, NULL,
+ canonical, saved_arg);
+ if (values.sals != NULL)
+ return values;
+ }
/* Does it look like there actually were two parts? */
- if ((p[0] == ':' || p[0] == '.') && paren_pointer == NULL)
+ if (p[0] == ':' || p[0] == '.')
{
- if (is_quoted)
- *argptr = *argptr + 1;
+ /* Is it a C++ or Java compound data structure?
+ The check on p[1] == ':' is capturing the case of "::",
+ since p[0]==':' was checked above.
+ Note that the call to decode_compound does everything
+ for us, including the lookup on the symbol table, so we
+ can return now. */
+
if (p[0] == '.' || p[1] == ':')
- /* C++ */
- /* ... or Java */
- return decode_compound (argptr, funfirstline, canonical,
- saved_arg, p);
-
- /* Extract the file name. */
- p1 = p;
- while (p != *argptr && p[-1] == ' ')
- --p;
- if ((*p == '"') && is_quote_enclosed)
- --p;
- copy = (char *) alloca (p - *argptr + 1);
- memcpy (copy, *argptr, p - *argptr);
- /* It may have the ending quote right after the file name */
- if (is_quote_enclosed && copy[p - *argptr - 1] == '"')
- copy[p - *argptr - 1] = 0;
- else
- copy[p - *argptr] = 0;
-
- /* Find that file's data. */
- s = lookup_symtab (copy);
- if (s == 0)
{
- if (!have_full_symbols () && !have_partial_symbols ())
- error ("No symbol table is loaded. Use the \"file\" command.");
- error ("No source file named %s.", copy);
+ struct symtabs_and_lines values;
+
+ if (is_quote_enclosed)
+ ++saved_arg;
+ values = decode_compound (argptr, funfirstline, canonical,
+ saved_arg, p, not_found_ptr);
+ if (is_quoted && **argptr == '\'')
+ *argptr = *argptr + 1;
+ return values;
}
- /* Discard the file name from the arg. */
- p = p1 + 1;
- while (*p == ' ' || *p == '\t')
- p++;
- *argptr = p;
- }
-#if 0
- /* No one really seems to know why this was added. It certainly
- breaks the command line, though, whenever the passed
- name is of the form ClassName::Method. This bit of code
- singles out the class name, and if funfirstline is set (for
- example, you are setting a breakpoint at this function),
- you get an error. This did not occur with earlier
- verions, so I am ifdef'ing this out. 3/29/99 */
- else
- {
- /* Check if what we have till now is a symbol name */
+ /* No, the first part is a filename; set file_symtab to be that file's
+ symtab. Also, move argptr past the filename. */
- /* We may be looking at a template instantiation such
- as "foo<int>". Check here whether we know about it,
- instead of falling through to the code below which
- handles ordinary function names, because that code
- doesn't like seeing '<' and '>' in a name -- the
- skip_quoted call doesn't go past them. So see if we
- can figure it out right now. */
+ file_symtab = symtab_from_filename (argptr, p, is_quote_enclosed,
+ not_found_ptr);
- copy = (char *) alloca (p - *argptr + 1);
- memcpy (copy, *argptr, p - *argptr);
- copy[p - *argptr] = '\000';
- sym = lookup_symbol (copy, 0, VAR_NAMESPACE, 0, &sym_symtab);
- if (sym)
+ /* Check for single quotes on the non-filename part. */
+ if (!is_quoted)
{
- *argptr = (*p == '\'') ? p + 1 : p;
- return symbol_found (funfirstline, canonical, copy, sym,
- NULL, sym_symtab);
+ is_quoted = (**argptr
+ && strchr (get_gdb_completer_quote_characters (),
+ **argptr) != NULL);
+ if (is_quoted)
+ end_quote = skip_quoted (*argptr);
}
- /* Otherwise fall out from here and go to file/line spec
- processing, etc. */
}
-#endif
- /* S is specified file's symtab, or 0 if no file specified.
+ /* file_symtab is specified file's symtab, or 0 if no file specified.
arg no longer contains the file name. */
- /* Check whether arg is all digits (and sign) */
+ /* If the filename was quoted, we must re-check the quotation. */
+
+ if (end_quote == first_half && *end_quote!= '\0')
+ {
+ is_quoted = (**argptr
+ && strchr (get_gdb_completer_quote_characters (),
+ **argptr) != NULL);
+ if (is_quoted)
+ end_quote = skip_quoted (*argptr);
+ }
+
+ /* Check whether arg is all digits (and sign). */
q = *argptr;
if (*q == '-' || *q == '+')
q++;
if (q != *argptr && (*q == 0 || *q == ' ' || *q == '\t' || *q == ','))
- {
- /* We found a token consisting of all digits -- at least one digit. */
- enum sign
- {
- none, plus, minus
- }
- sign = none;
-
- /* We might need a canonical line spec if no file was specified. */
- int need_canonical = (s == 0) ? 1 : 0;
-
- /* This is where we need to make sure that we have good defaults.
- We must guarantee that this section of code is never executed
- when we are called with just a function name, since
- set_default_source_symtab_and_line uses
- select_source_symtab that calls us with such an argument */
-
- if (s == 0 && default_symtab == 0)
- {
- /* Make sure we have at least a default source file. */
- set_default_source_symtab_and_line ();
- initialize_defaults (&default_symtab, &default_line);
- }
-
- if (**argptr == '+')
- sign = plus, (*argptr)++;
- else if (**argptr == '-')
- sign = minus, (*argptr)++;
- val.line = atoi (*argptr);
- switch (sign)
- {
- case plus:
- if (q == *argptr)
- val.line = 5;
- if (s == 0)
- val.line = default_line + val.line;
- break;
- case minus:
- if (q == *argptr)
- val.line = 15;
- if (s == 0)
- val.line = default_line - val.line;
- else
- val.line = 1;
- break;
- case none:
- break; /* No need to adjust val.line. */
- }
-
- while (*q == ' ' || *q == '\t')
- q++;
- *argptr = q;
- if (s == 0)
- s = default_symtab;
-
- /* 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));
- values.sals[0] = val;
- values.nelts = 1;
- if (need_canonical)
- build_canonical_line_spec (values.sals, NULL, canonical);
- return values;
- }
+ /* We found a token consisting of all digits -- at least one digit. */
+ return decode_all_digits (argptr, default_symtab, default_line,
+ canonical, file_symtab, q);
/* Arg token is not digits => try it as a variable name
Find the next token (everything up to end or next whitespace). */
- if (**argptr == '$') /* May be a convenience variable */
- p = skip_quoted (*argptr + (((*argptr)[1] == '$') ? 2 : 1)); /* One or two $ chars possible */
+ if (**argptr == '$') /* May be a convenience variable. */
+ /* One or two $ chars possible. */
+ p = skip_quoted (*argptr + (((*argptr)[1] == '$') ? 2 : 1));
else if (is_quoted)
{
- p = skip_quoted (*argptr);
+ p = end_quote;
if (p[-1] != '\'')
- error ("Unmatched single quote.");
+ error (_("Unmatched single quote."));
}
- else if (paren_pointer != NULL)
+ else if (is_objc_method)
{
- p = paren_pointer + 1;
+ /* allow word separators in method names for Obj-C. */
+ p = skip_quoted_chars (*argptr, NULL, "");
}
else
{
p = skip_quoted (*argptr);
}
+ /* Keep any template parameters. */
+ if (*p == '<')
+ p = find_template_name_end (p);
+
+ /* Keep method overload information. */
+ if (*p == '(')
+ p = find_method_overload_end (p);
+
+ /* Make sure we keep important kewords like "const". */
+ if (strncmp (p, " const", 6) == 0)
+ p += 6;
+
copy = (char *) alloca (p - *argptr + 1);
memcpy (copy, *argptr, p - *argptr);
copy[p - *argptr] = '\0';
copy[p - *argptr - 1] = '\0';
copy++;
}
+ else if (is_quoted)
+ copy[p - *argptr - 1] = '\0';
while (*p == ' ' || *p == '\t')
p++;
*argptr = p;
/* If it starts with $: may be a legitimate variable or routine name
(e.g. HP-UX millicode routines such as $$dyncall), or it may
- be history value, or it may be a convenience variable */
+ be history value, or it may be a convenience variable. */
if (*copy == '$')
- {
- struct value *valx;
- int index = 0;
- int need_canonical = 0;
-
- p = (copy[1] == '$') ? copy + 2 : copy + 1;
- while (*p >= '0' && *p <= '9')
- p++;
- if (!*p) /* reached end of token without hitting non-digit */
- {
- /* We have a value history reference */
- sscanf ((copy[1] == '$') ? copy + 2 : copy + 1, "%d", &index);
- valx = access_value_history ((copy[1] == '$') ? -index : index);
- if (TYPE_CODE (VALUE_TYPE (valx)) != TYPE_CODE_INT)
- error ("History values used in line specs must have integer values.");
- }
- else
- {
- /* Not all digits -- may be user variable/function or a
- convenience variable */
-
- /* Look up entire name as a symbol first */
- sym = lookup_symbol (copy, 0, VAR_NAMESPACE, 0, &sym_symtab);
- s = (struct symtab *) 0;
- need_canonical = 1;
- /* Symbol was found --> jump to normal symbol processing. */
- if (sym)
- return symbol_found (funfirstline, canonical, copy, sym,
- NULL, sym_symtab);
-
- /* If symbol was not found, look in minimal symbol tables */
- msymbol = lookup_minimal_symbol (copy, NULL, NULL);
- /* Min symbol was found --> jump to minsym processing. */
- if (msymbol)
- return minsym_found (funfirstline, msymbol);
-
- /* Not a user variable or function -- must be convenience variable */
- need_canonical = (s == 0) ? 1 : 0;
- valx = value_of_internalvar (lookup_internalvar (copy + 1));
- if (TYPE_CODE (VALUE_TYPE (valx)) != TYPE_CODE_INT)
- error ("Convenience variables used in line specs must have integer values.");
- }
-
- /* Either history value or convenience value from above, in valx */
- val.symtab = s ? s : default_symtab;
- val.line = value_as_long (valx);
- val.pc = 0;
-
- values.sals = (struct symtab_and_line *) xmalloc (sizeof val);
- values.sals[0] = val;
- values.nelts = 1;
+ return decode_dollar (copy, funfirstline, default_symtab,
+ canonical, file_symtab);
- if (need_canonical)
- build_canonical_line_spec (values.sals, NULL, canonical);
+ /* Try the token as a label, but only if no file was specified,
+ because we can only really find labels in the current scope. */
- return values;
+ if (!file_symtab)
+ {
+ struct symtabs_and_lines label_result;
+ if (decode_label (copy, canonical, &label_result))
+ return label_result;
}
-
/* Look up that token as a variable.
If file specified, use that file's per-file block to start with. */
- sym = lookup_symbol (copy,
- (s ? BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK)
- : get_selected_block (0)),
- VAR_NAMESPACE, 0, &sym_symtab);
-
- if (sym != NULL)
- return symbol_found (funfirstline, canonical, copy, sym, s, sym_symtab);
-
- msymbol = lookup_minimal_symbol (copy, NULL, NULL);
-
- if (msymbol != NULL)
- return minsym_found (funfirstline, msymbol);
-
- if (!have_full_symbols () &&
- !have_partial_symbols () && !have_minimal_symbols ())
- error ("No symbol table is loaded. Use the \"file\" command.");
-
- error ("Function \"%s\" not defined.", copy);
- return values; /* for lint */
+ return decode_variable (copy, funfirstline, canonical,
+ file_symtab, not_found_ptr);
}
\f
function is passed ARGPTR as an argument, it modifies what ARGPTR
points to; typically, it advances *ARGPTR past whatever substring
it has just looked at. (If it doesn't modify *ARGPTR, then the
- function gets passed *ARGPTR instead, which is then called ARG: see
- set_flags, for example.) Also, functions that return a struct
- symtabs_and_lines may modify CANONICAL, as in the description of
- decode_line_1.
+ function gets passed *ARGPTR instead, which is then called ARG.)
+ Also, functions that return a struct symtabs_and_lines may modify
+ CANONICAL, as in the description of decode_line_1.
If a function returns a struct symtabs_and_lines, then that struct
will immediately make its way up the call chain to be returned by
{
/* Use whatever we have for the default source line. We don't use
get_current_or_default_symtab_and_line as it can recurse and call
- us back! */
+ us back! */
struct symtab_and_line cursal =
get_current_source_symtab_and_line ();
}
}
-static void
-set_flags (char *arg, int *is_quoted, char **paren_pointer)
-{
- char *ii;
- int has_if = 0;
-
- /* 'has_if' is for the syntax:
- * (gdb) break foo if (a==b)
- */
- if ((ii = strstr (arg, " if ")) != NULL ||
- (ii = strstr (arg, "\tif ")) != NULL ||
- (ii = strstr (arg, " if\t")) != NULL ||
- (ii = strstr (arg, "\tif\t")) != NULL ||
- (ii = strstr (arg, " if(")) != NULL ||
- (ii = strstr (arg, "\tif( ")) != NULL)
- has_if = 1;
- /* Temporarily zap out "if (condition)" to not
- * confuse the parenthesis-checking code below.
- * This is undone below. Do not change ii!!
- */
- if (has_if)
- {
- *ii = '\0';
- }
-
- *is_quoted = (*arg
- && strchr (get_gdb_completer_quote_characters (),
- *arg) != NULL);
-
- *paren_pointer = strchr (arg, '(');
- if (*paren_pointer != NULL)
- *paren_pointer = strrchr (*paren_pointer, ')');
-
- /* Now that we're safely past the paren_pointer check,
- * put back " if (condition)" so outer layers can see it
- */
- if (has_if)
- *ii = ' ';
-}
-
\f
/* Decode arg of the form *PC. */
values.sals[0] = find_pc_line (pc, 0);
values.sals[0].pc = pc;
values.sals[0].section = find_pc_overlay (pc);
+ values.sals[0].explicit_pc = 1;
return values;
}
/* Locate the first half of the linespec, ending in a colon, period,
or whitespace. (More or less.) Also, check to see if *ARGPTR is
enclosed in double quotes; if so, set is_quote_enclosed, advance
- ARGPTR past that and zero out the trailing double quote. */
+ ARGPTR past that and zero out the trailing double quote.
+ If ARGPTR is just a simple name like "main", p will point to ""
+ at the end. */
static char *
locate_first_half (char **argptr, int *is_quote_enclosed)
ii = find_toplevel_char (*argptr, ',');
has_comma = (ii != 0);
- /* Temporarily zap out second half to not
- * confuse the code below.
- * This is undone below. Do not change ii!!
- */
+ /* Temporarily zap out second half to not confuse the code below.
+ This is undone below. Do not change ii!! */
if (has_comma)
{
*ii = '\0';
}
- /* Maybe arg is FILE : LINENUM or FILE : FUNCTION */
- /* May also be CLASS::MEMBER, or NAMESPACE::NAME */
- /* Look for ':', but ignore inside of <> */
+ /* Maybe arg is FILE : LINENUM or FILE : FUNCTION. May also be
+ CLASS::MEMBER, or NAMESPACE::NAME. Look for ':', but ignore
+ inside of <>. */
p = *argptr;
if (p[0] == '"')
p++;
}
else
- *is_quote_enclosed = 0;
+ {
+ *is_quote_enclosed = 0;
+ if (strchr (get_gdb_completer_quote_characters (), *p))
+ {
+ ++(*argptr);
+ ++p;
+ }
+ }
for (; *p; p++)
{
if (p[0] == '<')
{
char *temp_end = find_template_name_end (p);
+
if (!temp_end)
- error ("malformed template specification in command");
+ error (_("malformed template specification in command"));
p = temp_end;
}
- /* Check for the end of the first half of the linespec. End of line,
- a tab, a double colon or the last single colon, or a space. But
- if enclosed in double quotes we do not break on enclosed spaces */
+ /* Check for a colon and a plus or minus and a [ (which
+ indicates an Objective-C method). */
+ if (is_objc_method_format (p))
+ {
+ break;
+ }
+ /* Check for the end of the first half of the linespec. End of
+ line, a tab, a double colon or the last single colon, or a
+ space. But if enclosed in double quotes we do not break on
+ enclosed spaces. */
if (!*p
|| p[0] == '\t'
|| ((p[0] == ':')
&& ((p[1] == ':') || (strchr (p + 1, ':') == NULL)))
|| ((p[0] == ' ') && !*is_quote_enclosed))
break;
- if (p[0] == '.' && strchr (p, ':') == NULL) /* Java qualified method. */
+ if (p[0] == '.' && strchr (p, ':') == NULL)
{
- /* Find the *last* '.', since the others are package qualifiers. */
- for (p1 = p; *p1; p1++)
+ /* Java qualified method. Find the *last* '.', since the
+ others are package qualifiers. Stop at any open parenthesis
+ which might provide overload information. */
+ for (p1 = p; *p1 && *p1 != '('; p1++)
{
if (*p1 == '.')
p = p1;
while (p[0] == ' ' || p[0] == '\t')
p++;
- /* if the closing double quote was left at the end, remove it */
+ /* If the closing double quote was left at the end, remove it. */
if (*is_quote_enclosed)
{
char *closing_quote = strchr (p - 1, '"');
+
if (closing_quote && closing_quote[1] == '\0')
*closing_quote = '\0';
}
- /* Now that we've safely parsed the first half,
- * put back ',' so outer layers can see it
- */
+ /* Now that we've safely parsed the first half, put back ',' so
+ outer layers can see it. */
if (has_comma)
*ii = ',';
\f
+/* Here's where we recognise an Objective-C Selector. An Objective C
+ selector may be implemented by more than one class, therefore it
+ may represent more than one method/function. This gives us a
+ situation somewhat analogous to C++ overloading. If there's more
+ than one method that could represent the selector, then use some of
+ the existing C++ code to let the user choose one. */
+
+struct symtabs_and_lines
+decode_objc (char **argptr, int funfirstline, struct symtab *file_symtab,
+ char ***canonical, char *saved_arg)
+{
+ struct symtabs_and_lines values;
+ struct symbol **sym_arr = NULL;
+ struct symbol *sym = NULL;
+ char *copy = NULL;
+ struct block *block = NULL;
+ unsigned i1 = 0;
+ unsigned i2 = 0;
+
+ values.sals = NULL;
+ values.nelts = 0;
+
+ if (file_symtab != NULL)
+ block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (file_symtab), STATIC_BLOCK);
+ else
+ {
+ enum language save_language;
+
+ /* get_selected_block can change the current language when there is
+ no selected frame yet. */
+ save_language = current_language->la_language;
+ block = get_selected_block (0);
+ set_language (save_language);
+ }
+
+ copy = find_imps (file_symtab, block, *argptr, NULL, &i1, &i2);
+
+ if (i1 > 0)
+ {
+ sym_arr = (struct symbol **)
+ alloca ((i1 + 1) * sizeof (struct symbol *));
+ sym_arr[i1] = NULL;
+
+ copy = find_imps (file_symtab, block, *argptr, sym_arr, &i1, &i2);
+ *argptr = copy;
+ }
+
+ /* i1 now represents the TOTAL number of matches found.
+ i2 represents how many HIGH-LEVEL (struct symbol) matches,
+ which will come first in the sym_arr array. Any low-level
+ (minimal_symbol) matches will follow those. */
+
+ if (i1 == 1)
+ {
+ if (i2 > 0)
+ {
+ /* Already a struct symbol. */
+ sym = sym_arr[0];
+ }
+ else
+ {
+ sym = find_pc_function (SYMBOL_VALUE_ADDRESS (sym_arr[0]));
+ if ((sym != NULL) && strcmp (SYMBOL_LINKAGE_NAME (sym_arr[0]),
+ SYMBOL_LINKAGE_NAME (sym)) != 0)
+ {
+ warning (_("debugging symbol \"%s\" does "
+ "not match selector; ignoring"),
+ SYMBOL_LINKAGE_NAME (sym));
+ sym = NULL;
+ }
+ }
+
+ values.sals = (struct symtab_and_line *)
+ xmalloc (sizeof (struct symtab_and_line));
+ values.nelts = 1;
+
+ if (sym && SYMBOL_CLASS (sym) == LOC_BLOCK)
+ {
+ /* Canonicalize this, so it remains resolved for dylib loads. */
+ values.sals[0] = find_function_start_sal (sym, funfirstline);
+ build_canonical_line_spec (values.sals,
+ SYMBOL_NATURAL_NAME (sym), canonical);
+ }
+ else
+ {
+ /* The only match was a non-debuggable symbol, which might point
+ to a function descriptor; resolve it to the actual code address
+ instead. */
+ struct minimal_symbol *msymbol = (struct minimal_symbol *)sym_arr[0];
+ struct objfile *objfile = msymbol_objfile (msymbol);
+ struct gdbarch *gdbarch = get_objfile_arch (objfile);
+ CORE_ADDR pc = SYMBOL_VALUE_ADDRESS (msymbol);
+
+ pc = gdbarch_convert_from_func_ptr_addr (gdbarch, pc,
+ ¤t_target);
+
+ init_sal (&values.sals[0]);
+ values.sals[0].pc = pc;
+ }
+ return values;
+ }
+
+ if (i1 > 1)
+ {
+ /* More than one match. The user must choose one or more. */
+ return decode_line_2 (sym_arr, i2, funfirstline, canonical);
+ }
+
+ return values;
+}
+
/* This handles C++ and Java compound data structures. P should point
- at the first component separator, i.e. double-colon or period. */
+ at the first component separator, i.e. double-colon or period. As
+ an example, on entrance to this function we could have ARGPTR
+ pointing to "AAA::inA::fun" and P pointing to "::inA::fun". */
static struct symtabs_and_lines
decode_compound (char **argptr, int funfirstline, char ***canonical,
- char *saved_arg, char *p)
+ char *saved_arg, char *p, int *not_found_ptr)
{
struct symtabs_and_lines values;
- char *p1, *p2;
-#if 0
- char *q, *q1;
-#endif
+ char *p2;
char *saved_arg2 = *argptr;
char *temp_end;
struct symbol *sym;
- /* The symtab that SYM was found in. */
- struct symtab *sym_symtab;
char *copy;
struct symbol *sym_class;
- int i1;
- struct symbol **sym_arr;
struct type *t;
+ char *saved_java_argptr = NULL;
- /* First check for "global" namespace specification,
- of the form "::foo". If found, skip over the colons
- and jump to normal symbol processing */
+ /* First check for "global" namespace specification, of the form
+ "::foo". If found, skip over the colons and jump to normal
+ symbol processing. I.e. the whole line specification starts with
+ "::" (note the condition that *argptr == p). */
if (p[0] == ':'
&& ((*argptr == p) || (p[-1] == ' ') || (p[-1] == '\t')))
saved_arg2 += 2;
- /* We have what looks like a class or namespace
- scope specification (A::B), possibly with many
- levels of namespaces or classes (A::B::C::D).
-
- Some versions of the HP ANSI C++ compiler (as also possibly
- other compilers) generate class/function/member names with
- embedded double-colons if they are inside namespaces. To
- handle this, we loop a few times, considering larger and
- larger prefixes of the string as though they were single
- symbols. So, if the initially supplied string is
- A::B::C::D::foo, we have to look up "A", then "A::B",
- then "A::B::C", then "A::B::C::D", and finally
- "A::B::C::D::foo" as single, monolithic symbols, because
- A, B, C or D may be namespaces.
-
- Note that namespaces can nest only inside other
- namespaces, and not inside classes. So we need only
- consider *prefixes* of the string; there is no need to look up
- "B::C" separately as a symbol in the previous example. */
-
- p2 = p; /* save for restart */
+ /* Given our example "AAA::inA::fun", we have two cases to consider:
+
+ 1) AAA::inA is the name of a class. In that case, presumably it
+ has a method called "fun"; we then look up that method using
+ find_method.
+
+ 2) AAA::inA isn't the name of a class. In that case, either the
+ user made a typo or AAA::inA is the name of a namespace.
+ Either way, we just look up AAA::inA::fun with lookup_symbol.
+
+ Thus, our first task is to find everything before the last set of
+ double-colons and figure out if it's the name of a class. So we
+ first loop through all of the double-colons. */
+
+ p2 = p; /* Save for restart. */
+
+ /* This is very messy. Following the example above we have now the
+ following pointers:
+ p -> "::inA::fun"
+ argptr -> "AAA::inA::fun
+ saved_arg -> "AAA::inA::fun
+ saved_arg2 -> "AAA::inA::fun
+ p2 -> "::inA::fun". */
+
+ /* In the loop below, with these strings, we'll make 2 passes, each
+ is marked in comments. */
+
while (1)
{
- /* Extract the class name. */
- p1 = p;
- while (p != *argptr && p[-1] == ' ')
- --p;
- copy = (char *) alloca (p - *argptr + 1);
- memcpy (copy, *argptr, p - *argptr);
- copy[p - *argptr] = 0;
+ /* Move pointer up to next possible class/namespace token. */
- /* Discard the class name from the arg. */
- p = p1 + (p1[0] == ':' ? 2 : 1);
- while (*p == ' ' || *p == '\t')
- p++;
- *argptr = p;
+ p = p2 + 1; /* Restart with old value +1. */
- sym_class = lookup_symbol (copy, 0, STRUCT_NAMESPACE, 0,
- (struct symtab **) NULL);
+ /* PASS1: at this point p2->"::inA::fun", so p->":inA::fun",
+ i.e. if there is a double-colon, p will now point to the
+ second colon. */
+ /* PASS2: p2->"::fun", p->":fun" */
- if (sym_class &&
- (t = check_typedef (SYMBOL_TYPE (sym_class)),
- (TYPE_CODE (t) == TYPE_CODE_STRUCT
- || TYPE_CODE (t) == TYPE_CODE_UNION)))
+ /* Move pointer ahead to next double-colon. */
+ while (*p && (p[0] != ' ') && (p[0] != '\t') && (p[0] != '\'')
+ && (*p != '('))
{
- /* Arg token is not digits => try it as a function name
- Find the next token(everything up to end or next blank). */
- if (**argptr
- && strchr (get_gdb_completer_quote_characters (),
- **argptr) != NULL)
+ if (current_language->la_language == language_cplus)
+ p += cp_validate_operator (p);
+
+ if (p[0] == '<')
{
- p = skip_quoted (*argptr);
- *argptr = *argptr + 1;
+ temp_end = find_template_name_end (p);
+ if (!temp_end)
+ error (_("malformed template specification in command"));
+ p = temp_end;
}
+ /* Note that, since, at the start of this loop, p would be
+ pointing to the second colon in a double-colon, we only
+ satisfy the condition below if there is another
+ double-colon to the right (after). I.e. there is another
+ component that can be a class or a namespace. I.e, if at
+ the beginning of this loop (PASS1), we had
+ p->":inA::fun", we'll trigger this when p has been
+ advanced to point to "::fun". */
+ /* PASS2: we will not trigger this. */
+ else if ((p[0] == ':') && (p[1] == ':'))
+ break; /* Found double-colon. */
else
- {
- p = *argptr;
- while (*p && *p != ' ' && *p != '\t' && *p != ',' && *p != ':')
- p++;
- }
-/*
- q = operator_chars (*argptr, &q1);
- if (q1 - q)
- {
- char *opname;
- char *tmp = alloca (q1 - q + 1);
- memcpy (tmp, q, q1 - q);
- tmp[q1 - q] = '\0';
- opname = cplus_mangle_opname (tmp, DMGL_ANSI);
- if (opname == NULL)
- {
- cplusplus_error (saved_arg, "no mangling for \"%s\"\n", tmp);
- }
- copy = (char*) alloca (3 + strlen(opname));
- sprintf (copy, "__%s", opname);
- p = q1;
- }
- else
- */
- {
- copy = (char *) alloca (p - *argptr + 1);
- memcpy (copy, *argptr, p - *argptr);
- copy[p - *argptr] = '\0';
- if (p != *argptr
- && copy[p - *argptr - 1]
- && strchr (get_gdb_completer_quote_characters (),
- copy[p - *argptr - 1]) != NULL)
- copy[p - *argptr - 1] = '\0';
- }
-
- /* no line number may be specified */
- while (*p == ' ' || *p == '\t')
+ /* PASS2: We'll keep getting here, until p->"", at which point
+ we exit this loop. */
p++;
- *argptr = p;
+ }
- sym = 0;
- i1 = 0; /* counter for the symbol array */
- sym_arr = (struct symbol **) alloca (total_number_of_methods (t)
- * sizeof (struct symbol *));
+ if (*p != ':')
+ break; /* Out of the while (1). This would happen
+ for instance if we have looked up
+ unsuccessfully all the components of the
+ string, and p->""(PASS2). */
+
+ /* We get here if p points to ' ', '\t', '\'', "::" or ""(i.e
+ string ended). */
+ /* Save restart for next time around. */
+ p2 = p;
+ /* Restore argptr as it was on entry to this function. */
+ *argptr = saved_arg2;
+ /* PASS1: at this point p->"::fun" argptr->"AAA::inA::fun",
+ p2->"::fun". */
+
+ /* All ready for next pass through the loop. */
+ } /* while (1) */
- if (destructor_name_p (copy, t))
- {
- /* Destructors are a special case. */
- int m_index, f_index;
- if (get_destructor_fn_field (t, &m_index, &f_index))
- {
- struct fn_field *f = TYPE_FN_FIELDLIST1 (t, m_index);
-
- sym_arr[i1] =
- lookup_symbol (TYPE_FN_FIELD_PHYSNAME (f, f_index),
- NULL, VAR_NAMESPACE, (int *) NULL,
- (struct symtab **) NULL);
- if (sym_arr[i1])
- i1++;
- }
- }
- else
- i1 = find_methods (t, copy, sym_arr);
- if (i1 == 1)
- {
- /* There is exactly one field with that name. */
- sym = sym_arr[0];
+ /* Start of lookup in the symbol tables. */
- if (sym && SYMBOL_CLASS (sym) == LOC_BLOCK)
- {
- values.sals = (struct symtab_and_line *)
- xmalloc (sizeof (struct symtab_and_line));
- values.nelts = 1;
- values.sals[0] = find_function_start_sal (sym,
- funfirstline);
- }
- else
- {
- values.nelts = 0;
- }
- return values;
- }
- if (i1 > 0)
+ /* Lookup in the symbol table the substring between argptr and
+ p. Note, this call changes the value of argptr. */
+ /* Before the call, argptr->"AAA::inA::fun",
+ p->"", p2->"::fun". After the call: argptr->"fun", p, p2
+ unchanged. */
+ sym_class = lookup_prefix_sym (argptr, p2);
+
+ /* If sym_class has been found, and if "AAA::inA" is a class, then
+ we're in case 1 above. So we look up "fun" as a method of that
+ class. */
+ if (sym_class &&
+ (t = check_typedef (SYMBOL_TYPE (sym_class)),
+ (TYPE_CODE (t) == TYPE_CODE_STRUCT
+ || TYPE_CODE (t) == TYPE_CODE_UNION)))
+ {
+ /* Arg token is not digits => try it as a function name.
+ Find the next token (everything up to end or next
+ blank). */
+ if (**argptr
+ && strchr (get_gdb_completer_quote_characters (),
+ **argptr) != NULL)
+ {
+ p = skip_quoted (*argptr);
+ *argptr = *argptr + 1;
+ }
+ else
+ {
+ /* At this point argptr->"fun". */
+ char *a;
+
+ p = *argptr;
+ while (*p && *p != ' ' && *p != '\t' && *p != ',' && *p != ':'
+ && *p != '(')
+ p++;
+ /* At this point p->"". String ended. */
+ /* Nope, C++ operators could have spaces in them
+ ("foo::operator <" or "foo::operator delete []").
+ I apologize, this is a bit hacky... */
+ if (current_language->la_language == language_cplus
+ && *p == ' ' && p - 8 - *argptr + 1 > 0)
{
- /* There is more than one field with that name
- (overloaded). Ask the user which one to use. */
- return decode_line_2 (sym_arr, i1, funfirstline, canonical);
+ /* The above loop has already swallowed "operator". */
+ p += cp_validate_operator (p - 8) - 8;
}
- else
- {
- char *tmp;
- if (is_operator_name (copy))
+ /* Keep any template parameters. */
+ if (*p == '<')
+ p = find_template_name_end (p);
+
+ /* Keep method overload information. */
+ a = strchr (p, '(');
+ if (a != NULL)
+ p = find_method_overload_end (a);
+
+ /* Make sure we keep important kewords like "const". */
+ if (strncmp (p, " const", 6) == 0)
+ p += 6;
+
+ /* Java may append typenames, so assume that if there is
+ anything else left in *argptr, it must be a typename. */
+ if (*p && current_language->la_language == language_java)
+ {
+ struct type *type;
+
+ p2 = p;
+ while (*p2)
+ ++p2;
+ copy = (char *) alloca (p2 - p + 1);
+ memcpy (copy, p, p2 - p);
+ copy[p2 - p] = '\0';
+ type = lookup_typename (current_language, get_current_arch (),
+ copy, NULL, 1);
+ if (type != NULL)
{
- tmp = (char *) alloca (strlen (copy + 3) + 9);
- strcpy (tmp, "operator ");
- strcat (tmp, copy + 3);
+ /* Save the location of this just in case this
+ method/type combination isn't actually defined.
+ It will be checked later. */
+ saved_java_argptr = p;
+ p = p2;
}
- else
- tmp = copy;
- if (tmp[0] == '~')
- cplusplus_error (saved_arg,
- "the class `%s' does not have destructor defined\n",
- SYMBOL_SOURCE_NAME (sym_class));
- else
- cplusplus_error (saved_arg,
- "the class %s does not have any method named %s\n",
- SYMBOL_SOURCE_NAME (sym_class), tmp);
}
}
- /* Move pointer up to next possible class/namespace token */
- p = p2 + 1; /* restart with old value +1 */
- /* Move pointer ahead to next double-colon */
- while (*p && (p[0] != ' ') && (p[0] != '\t') && (p[0] != '\''))
+ /* Allocate our own copy of the substring between argptr and
+ p. */
+ copy = (char *) alloca (p - *argptr + 1);
+ memcpy (copy, *argptr, p - *argptr);
+ copy[p - *argptr] = '\0';
+ if (p != *argptr
+ && copy[p - *argptr - 1]
+ && strchr (get_gdb_completer_quote_characters (),
+ copy[p - *argptr - 1]) != NULL)
+ copy[p - *argptr - 1] = '\0';
+
+ /* At this point copy->"fun", p->"". */
+
+ /* No line number may be specified. */
+ while (*p == ' ' || *p == '\t')
+ p++;
+ *argptr = p;
+ /* At this point arptr->"". */
+
+ /* Look for copy as a method of sym_class. */
+ /* At this point copy->"fun", sym_class is "AAA:inA",
+ saved_arg->"AAA::inA::fun". This concludes the scanning of
+ the string for possible components matches. If we find it
+ here, we return. If not, and we are at the and of the string,
+ we'll lookup the whole string in the symbol tables. */
+
+ values = find_method (funfirstline, canonical, saved_arg,
+ copy, t, sym_class, not_found_ptr);
+ if (saved_java_argptr != NULL && values.nelts == 1)
{
- if (p[0] == '<')
+ /* The user specified a specific return type for a java method.
+ Double-check that it really is the one the user specified.
+ [This is a necessary evil because strcmp_iw_ordered stops
+ comparisons too prematurely.] */
+ sym = find_pc_sect_function (values.sals[0].pc,
+ values.sals[0].section);
+ /* We just found a SAL, we had better be able to go backwards! */
+ gdb_assert (sym != NULL);
+ if (strcmp_iw (SYMBOL_LINKAGE_NAME (sym), saved_arg) != 0)
{
- temp_end = find_template_name_end (p);
- if (!temp_end)
- error ("malformed template specification in command");
- p = temp_end;
+ xfree (values.sals);
+ error (_("the class `%s' does not have "
+ "any method instance named %s"),
+ SYMBOL_PRINT_NAME (sym_class), copy);
}
- else if ((p[0] == ':') && (p[1] == ':'))
- break; /* found double-colon */
- else
- p++;
}
+ return values;
+ } /* End if symbol found. */
- if (*p != ':')
- break; /* out of the while (1) */
- p2 = p; /* save restart for next time around */
- *argptr = saved_arg2; /* restore argptr */
- } /* while (1) */
+ /* We couldn't find a class, so we're in case 2 above. We check the
+ entire name as a symbol instead. */
- /* Last chance attempt -- check entire name as a symbol */
- /* Use "copy" in preparation for jumping out of this block,
- to be consistent with usage following the jump target */
copy = (char *) alloca (p - saved_arg2 + 1);
memcpy (copy, saved_arg2, p - saved_arg2);
- /* Note: if is_quoted should be true, we snuff out quote here anyway */
+ /* Note: if is_quoted should be true, we snuff out quote here
+ anyway. */
copy[p - saved_arg2] = '\000';
- /* Set argptr to skip over the name */
+ /* Set argptr to skip over the name. */
*argptr = (*p == '\'') ? p + 1 : p;
- /* Look up entire name */
- sym = lookup_symbol (copy, 0, VAR_NAMESPACE, 0, &sym_symtab);
+
+ /* Look up entire name. */
+ sym = lookup_symbol (copy, 0, VAR_DOMAIN, 0);
if (sym)
- return symbol_found (funfirstline, canonical, copy, sym,
- NULL, sym_symtab);
+ return symbol_found (funfirstline, canonical, copy, sym, NULL);
- /* Couldn't find any interpretation as classes/namespaces, so give up */
- /* The quotes are important if copy is empty. */
+ /* Couldn't find any interpretation as classes/namespaces, so give
+ up. The quotes are important if copy is empty. */
+ if (not_found_ptr)
+ *not_found_ptr = 1;
cplusplus_error (saved_arg,
- "Can't find member of namespace, class, struct, or union named \"%s\"\n",
+ "Can't find member of namespace, "
+ "class, struct, or union named \"%s\"\n",
copy);
}
+/* Next come some helper functions for decode_compound. */
+
+/* Return the symbol corresponding to the substring of *ARGPTR ending
+ at P, allowing whitespace. Also, advance *ARGPTR past the symbol
+ name in question, the compound object separator ("::" or "."), and
+ whitespace. Note that *ARGPTR is changed whether or not the
+ lookup_symbol call finds anything (i.e we return NULL). As an
+ example, say ARGPTR is "AAA::inA::fun" and P is "::inA::fun". */
+
+static struct symbol *
+lookup_prefix_sym (char **argptr, char *p)
+{
+ char *p1;
+ char *copy;
+ struct symbol *sym;
+
+ /* Extract the class name. */
+ p1 = p;
+ while (p != *argptr && p[-1] == ' ')
+ --p;
+ copy = (char *) alloca (p - *argptr + 1);
+ memcpy (copy, *argptr, p - *argptr);
+ copy[p - *argptr] = 0;
+
+ /* Discard the class name from the argptr. */
+ p = p1 + (p1[0] == ':' ? 2 : 1);
+ while (*p == ' ' || *p == '\t')
+ p++;
+ *argptr = p;
+
+ /* At this point p1->"::inA::fun", p->"inA::fun" copy->"AAA",
+ argptr->"inA::fun". */
+
+ sym = lookup_symbol (copy, 0, STRUCT_DOMAIN, 0);
+ if (sym == NULL)
+ {
+ /* Typedefs are in VAR_DOMAIN so the above symbol lookup will
+ fail when the user attempts to lookup a method of a class
+ via a typedef'd name (NOT via the class's name, which is already
+ handled in symbol_matches_domain). So try the lookup again
+ using VAR_DOMAIN (where typedefs live) and double-check that we
+ found a struct/class type. */
+ struct symbol *s = lookup_symbol (copy, 0, VAR_DOMAIN, 0);
+
+ if (s != NULL)
+ {
+ struct type *t = SYMBOL_TYPE (s);
+
+ CHECK_TYPEDEF (t);
+ if (TYPE_CODE (t) == TYPE_CODE_STRUCT)
+ return s;
+ }
+ }
+
+ return sym;
+}
+
+/* This finds the method COPY in the class whose type is T and whose
+ symbol is SYM_CLASS. */
+
+static struct symtabs_and_lines
+find_method (int funfirstline, char ***canonical, char *saved_arg,
+ char *copy, struct type *t, struct symbol *sym_class,
+ int *not_found_ptr)
+{
+ struct symtabs_and_lines values;
+ struct symbol *sym = NULL;
+ int i1; /* Counter for the symbol array. */
+ struct symbol **sym_arr = alloca (total_number_of_methods (t)
+ * sizeof (struct symbol *));
+
+ /* Find all methods with a matching name, and put them in
+ sym_arr. */
+
+ i1 = find_methods (t, copy, SYMBOL_LANGUAGE (sym_class), sym_arr);
+
+ if (i1 == 1)
+ {
+ /* There is exactly one field with that name. */
+ sym = sym_arr[0];
+
+ if (sym && SYMBOL_CLASS (sym) == LOC_BLOCK)
+ {
+ values.sals = (struct symtab_and_line *)
+ xmalloc (sizeof (struct symtab_and_line));
+ values.nelts = 1;
+ values.sals[0] = find_function_start_sal (sym,
+ funfirstline);
+ }
+ else
+ {
+ values.sals = NULL;
+ values.nelts = 0;
+ }
+ return values;
+ }
+ if (i1 > 0)
+ {
+ /* If we were given a specific overload instance, use that
+ (or error if no matches were found). Otherwise ask the user
+ which one to use. */
+ if (strchr (saved_arg, '(') != NULL)
+ {
+ int i;
+ char *name = saved_arg;
+ char *canon = cp_canonicalize_string (name);
+ struct cleanup *cleanup;
+
+ if (canon != NULL)
+ {
+ name = canon;
+ cleanup = make_cleanup (xfree, canon);
+ }
+ else
+ cleanup = make_cleanup (null_cleanup, NULL);
+
+ for (i = 0; i < i1; ++i)
+ {
+ if (strcmp_iw (name, SYMBOL_LINKAGE_NAME (sym_arr[i])) == 0)
+ {
+ values.sals = (struct symtab_and_line *)
+ xmalloc (sizeof (struct symtab_and_line));
+ values.nelts = 1;
+ values.sals[0] = find_function_start_sal (sym_arr[i],
+ funfirstline);
+ do_cleanups (cleanup);
+ return values;
+ }
+ }
+
+ error (_("the class `%s' does not have "
+ "any method instance named %s"),
+ SYMBOL_PRINT_NAME (sym_class), copy);
+ }
+
+ return decode_line_2 (sym_arr, i1, funfirstline, canonical);
+ }
+ else
+ {
+ if (not_found_ptr)
+ *not_found_ptr = 1;
+ if (copy[0] == '~')
+ cplusplus_error (saved_arg,
+ "the class `%s' does not have destructor defined\n",
+ SYMBOL_PRINT_NAME (sym_class));
+ else
+ cplusplus_error (saved_arg,
+ "the class %s does not have any method named %s\n",
+ SYMBOL_PRINT_NAME (sym_class), copy);
+ }
+}
+
+\f
+
+/* Return the symtab associated to the filename given by the substring
+ of *ARGPTR ending at P, and advance ARGPTR past that filename. If
+ NOT_FOUND_PTR is not null and the source file is not found, store
+ boolean true at the location pointed to and do not issue an
+ error message. */
+
+static struct symtab *
+symtab_from_filename (char **argptr, char *p, int is_quote_enclosed,
+ int *not_found_ptr)
+{
+ char *p1;
+ char *copy;
+ struct symtab *file_symtab;
+
+ p1 = p;
+ while (p != *argptr && p[-1] == ' ')
+ --p;
+ if ((*p == '"') && is_quote_enclosed)
+ --p;
+ copy = (char *) alloca (p - *argptr + 1);
+ memcpy (copy, *argptr, p - *argptr);
+ /* It may have the ending quote right after the file name. */
+ if ((is_quote_enclosed && copy[p - *argptr - 1] == '"')
+ || copy[p - *argptr - 1] == '\'')
+ copy[p - *argptr - 1] = 0;
+ else
+ copy[p - *argptr] = 0;
+
+ /* Find that file's data. */
+ file_symtab = lookup_symtab (copy);
+ if (file_symtab == 0)
+ {
+ if (not_found_ptr)
+ *not_found_ptr = 1;
+ if (!have_full_symbols () && !have_partial_symbols ())
+ throw_error (NOT_FOUND_ERROR,
+ _("No symbol table is loaded. "
+ "Use the \"file\" command."));
+ throw_error (NOT_FOUND_ERROR, _("No source file named %s."), copy);
+ }
+
+ /* Discard the file name from the arg. */
+ p = p1 + 1;
+ while (*p == ' ' || *p == '\t')
+ p++;
+ *argptr = p;
+
+ return file_symtab;
+}
+
+\f
+
+/* This decodes a line where the argument is all digits (possibly
+ preceded by a sign). Q should point to the end of those digits;
+ the other arguments are as usual. */
+
+static struct symtabs_and_lines
+decode_all_digits (char **argptr, struct symtab *default_symtab,
+ int default_line, char ***canonical,
+ struct symtab *file_symtab, char *q)
+
+{
+ struct symtabs_and_lines values;
+ struct symtab_and_line val;
+
+ enum sign
+ {
+ none, plus, minus
+ }
+ sign = none;
+
+ /* We might need a canonical line spec if no file was specified. */
+ int need_canonical = (file_symtab == NULL) ? 1 : 0;
+
+ init_sal (&val);
+
+ val.pspace = current_program_space;
+
+ /* This is where we need to make sure that we have good defaults.
+ We must guarantee that this section of code is never executed
+ when we are called with just a function name, since
+ set_default_source_symtab_and_line uses
+ select_source_symtab that calls us with such an argument. */
+
+ if (file_symtab == 0 && default_symtab == 0)
+ {
+ /* Make sure we have at least a default source file. */
+ set_default_source_symtab_and_line ();
+ initialize_defaults (&default_symtab, &default_line);
+ }
+
+ if (**argptr == '+')
+ sign = plus, (*argptr)++;
+ else if (**argptr == '-')
+ sign = minus, (*argptr)++;
+ val.line = atoi (*argptr);
+ switch (sign)
+ {
+ case plus:
+ if (q == *argptr)
+ val.line = 5;
+ if (file_symtab == 0)
+ val.line = default_line + val.line;
+ break;
+ case minus:
+ if (q == *argptr)
+ val.line = 15;
+ if (file_symtab == 0)
+ val.line = default_line - val.line;
+ else
+ val.line = 1;
+ break;
+ case none:
+ break; /* No need to adjust val.line. */
+ }
+
+ while (*q == ' ' || *q == '\t')
+ q++;
+ *argptr = q;
+ if (file_symtab == 0)
+ file_symtab = default_symtab;
+
+ /* 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 file_symtab) to a new one. */
+ val.symtab = find_line_symtab (file_symtab, val.line, NULL, NULL);
+ if (val.symtab == 0)
+ val.symtab = file_symtab;
+
+ val.pspace = SYMTAB_PSPACE (val.symtab);
+ val.pc = 0;
+ values.sals = (struct symtab_and_line *)
+ xmalloc (sizeof (struct symtab_and_line));
+ values.sals[0] = val;
+ values.nelts = 1;
+ if (need_canonical)
+ build_canonical_line_spec (values.sals, NULL, canonical);
+ values.sals[0].explicit_line = 1;
+ return values;
+}
+
+\f
+
+/* Decode a linespec starting with a dollar sign. */
+
+static struct symtabs_and_lines
+decode_dollar (char *copy, int funfirstline, struct symtab *default_symtab,
+ char ***canonical, struct symtab *file_symtab)
+{
+ LONGEST valx;
+ int index = 0;
+ int need_canonical = 0;
+ struct symtabs_and_lines values;
+ struct symtab_and_line val;
+ char *p;
+ struct symbol *sym;
+ struct minimal_symbol *msymbol;
+
+ p = (copy[1] == '$') ? copy + 2 : copy + 1;
+ while (*p >= '0' && *p <= '9')
+ p++;
+ if (!*p) /* Reached end of token without hitting non-digit. */
+ {
+ /* We have a value history reference. */
+ struct value *val_history;
+
+ sscanf ((copy[1] == '$') ? copy + 2 : copy + 1, "%d", &index);
+ val_history = access_value_history ((copy[1] == '$') ? -index : index);
+ if (TYPE_CODE (value_type (val_history)) != TYPE_CODE_INT)
+ error (_("History values used in line "
+ "specs must have integer values."));
+ valx = value_as_long (val_history);
+ }
+ else
+ {
+ /* Not all digits -- may be user variable/function or a
+ convenience variable. */
+
+ /* Look up entire name as a symbol first. */
+ sym = lookup_symbol (copy, 0, VAR_DOMAIN, 0);
+ file_symtab = (struct symtab *) NULL;
+ need_canonical = 1;
+ /* Symbol was found --> jump to normal symbol processing. */
+ if (sym)
+ return symbol_found (funfirstline, canonical, copy, sym, NULL);
+
+ /* If symbol was not found, look in minimal symbol tables. */
+ msymbol = lookup_minimal_symbol (copy, NULL, NULL);
+ /* Min symbol was found --> jump to minsym processing. */
+ if (msymbol)
+ return minsym_found (funfirstline, msymbol);
+
+ /* Not a user variable or function -- must be convenience variable. */
+ if (!get_internalvar_integer (lookup_internalvar (copy + 1), &valx))
+ error (_("Convenience variables used in line "
+ "specs must have integer values."));
+ }
+
+ init_sal (&val);
+
+ /* Either history value or convenience value from above, in valx. */
+ val.symtab = file_symtab ? file_symtab : default_symtab;
+ val.line = valx;
+ val.pc = 0;
+ val.pspace = current_program_space;
+
+ values.sals = (struct symtab_and_line *) xmalloc (sizeof val);
+ values.sals[0] = val;
+ values.nelts = 1;
+
+ if (need_canonical)
+ build_canonical_line_spec (values.sals, NULL, canonical);
+
+ return values;
+}
+
+\f
+
+/* A helper for decode_line_1 that tries to find a label. The label
+ is searched for in the current block.
+ COPY is the name of the label to find.
+ CANONICAL is the same as the "canonical" argument to decode_line_1.
+ RESULT is a pointer to a symtabs_and_lines structure which will be
+ filled in on success.
+ This function returns 1 if a label was found, 0 otherwise. */
+
+static int
+decode_label (char *copy, char ***canonical, struct symtabs_and_lines *result)
+{
+ struct symbol *sym;
+
+ sym = lookup_symbol (copy, get_selected_block (0), LABEL_DOMAIN, 0);
+
+ if (sym != NULL)
+ *result = symbol_found (0, canonical, copy, sym, NULL);
+
+ return sym != NULL;
+}
+
+/* Decode a linespec that's a variable. If FILE_SYMTAB is non-NULL,
+ look in that symtab's static variables first. If NOT_FOUND_PTR is
+ not NULL and the function cannot be found, store boolean true in
+ the location pointed to and do not issue an error message. */
+
+static struct symtabs_and_lines
+decode_variable (char *copy, int funfirstline, char ***canonical,
+ struct symtab *file_symtab, int *not_found_ptr)
+{
+ struct symbol *sym;
+ struct minimal_symbol *msymbol;
+
+ sym = lookup_symbol (copy,
+ (file_symtab
+ ? BLOCKVECTOR_BLOCK (BLOCKVECTOR (file_symtab),
+ STATIC_BLOCK)
+ : get_selected_block (0)),
+ VAR_DOMAIN, 0);
+
+ if (sym != NULL)
+ return symbol_found (funfirstline, canonical, copy, sym, file_symtab);
+
+ msymbol = lookup_minimal_symbol (copy, NULL, NULL);
+
+ if (msymbol != NULL)
+ return minsym_found (funfirstline, msymbol);
+
+ if (not_found_ptr)
+ *not_found_ptr = 1;
+
+ if (!have_full_symbols ()
+ && !have_partial_symbols ()
+ && !have_minimal_symbols ())
+ throw_error (NOT_FOUND_ERROR,
+ _("No symbol table is loaded. Use the \"file\" command."));
+ throw_error (NOT_FOUND_ERROR, _("Function \"%s\" not defined."), copy);
+}
+
+
\f
/* Now come some functions that are called from multiple places within
static struct symtabs_and_lines
symbol_found (int funfirstline, char ***canonical, char *copy,
- struct symbol *sym, struct symtab *s,
- struct symtab *sym_symtab)
+ struct symbol *sym, struct symtab *file_symtab)
{
struct symtabs_and_lines values;
if (SYMBOL_CLASS (sym) == LOC_BLOCK)
{
- /* Arg is the name of a function */
+ /* Arg is the name of a function. */
values.sals = (struct symtab_and_line *)
xmalloc (sizeof (struct symtab_and_line));
values.sals[0] = find_function_start_sal (sym, funfirstline);
/* We might need a canonical line spec if it is a static
function. */
- if (s == 0)
+ if (file_symtab == 0)
{
- struct blockvector *bv = BLOCKVECTOR (sym_symtab);
+ struct blockvector *bv = BLOCKVECTOR (SYMBOL_SYMTAB (sym));
struct block *b = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK);
- if (lookup_block_symbol (b, copy, NULL, VAR_NAMESPACE) != NULL)
+
+ if (lookup_block_symbol (b, copy, VAR_DOMAIN) != NULL)
build_canonical_line_spec (values.sals, copy, canonical);
}
return values;
}
else
{
- if (funfirstline)
- error ("\"%s\" is not a function", copy);
+ if (funfirstline && SYMBOL_CLASS (sym) != LOC_LABEL)
+ error (_("\"%s\" is not a function"), copy);
else if (SYMBOL_LINE (sym) != 0)
{
/* We know its line number. */
xmalloc (sizeof (struct symtab_and_line));
values.nelts = 1;
memset (&values.sals[0], 0, sizeof (values.sals[0]));
- values.sals[0].symtab = sym_symtab;
+ values.sals[0].symtab = SYMBOL_SYMTAB (sym);
values.sals[0].line = SYMBOL_LINE (sym);
+ values.sals[0].pspace = SYMTAB_PSPACE (SYMBOL_SYMTAB (sym));
return values;
}
else
/* FIXME: Shouldn't we just set .line and .symtab to zero
and return? For example, "info line foo" could print
the address. */
- error ("Line number not known for symbol \"%s\"", copy);
+ error (_("Line number not known for symbol \"%s\""), copy);
}
}
static struct symtabs_and_lines
minsym_found (int funfirstline, struct minimal_symbol *msymbol)
{
+ struct objfile *objfile = msymbol_objfile (msymbol);
+ struct gdbarch *gdbarch = get_objfile_arch (objfile);
struct symtabs_and_lines values;
+ CORE_ADDR pc;
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);
+ (struct obj_section *) 0, 0);
+ values.sals[0].section = SYMBOL_OBJ_SECTION (msymbol);
+
+ /* The minimal symbol might point to a function descriptor;
+ resolve it to the actual code address instead. */
+ pc = gdbarch_convert_from_func_ptr_addr (gdbarch,
+ values.sals[0].pc,
+ ¤t_target);
+ if (pc != values.sals[0].pc)
+ values.sals[0] = find_pc_sect_line (pc, NULL, 0);
+
if (funfirstline)
- {
- values.sals[0].pc += FUNCTION_START_OFFSET;
- values.sals[0].pc = SKIP_PROLOGUE (values.sals[0].pc);
- }
+ skip_prologue_sal (&values.sals[0]);
+
values.nelts = 1;
return values;
}
projects / deliverable / binutils-gdb.git / blobdiff