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PR c++/12750

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* linespec.c (get_search_block): New function.
	(find_methods): Add FILE_SYMTATB parameter and use it and
	get_search_block to pass an appropriate block to
	lookup_symbol_in_namespace.
	(decode_line_1): Record if *ARGPTR is single-quote enclosed.
	Check if *ARGPTR starts with a filename first.
	If it does, call locate_first_half again to locate the next
	"first half" of the linespec.
	Pass FILE_SYMTATB to decode_objc and decode_compound.
	Swallow the trailing single-quote if IS_SQUOTE_ENCLOSED.
	(locate_first_half): Stop on the first colon seen.
	(decode_compound): Add FILE_SYMTAB parameter.
	Pass FILE_SYMTAB to lookup_prefix_sym and find_method.
	(lookup_prefix_sym): Add FILE_SYMTAB parameter and use
	get_search_block with lookup_symbol.
	(find_method): Add FILE_SYMTAB parameter and pass it to
	find_methods.
	(decode_objc): Use get_search_block.
This commit is contained in:
Keith Seitz 2011-05-31 22:13:51 +00:00
parent fa8b9902af
commit e8eb7bc534
2 changed files with 104 additions and 51 deletions
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22
gdb/ChangeLog
View File

@ -1,3 +1,25 @@
2010-05-31 Keith Seitz <keiths@redhat.com>
PR c++/12750
* linespec.c (get_search_block): New function.
(find_methods): Add FILE_SYMTATB parameter and use it and
get_search_block to pass an appropriate block to
lookup_symbol_in_namespace.
(decode_line_1): Record if *ARGPTR is single-quote enclosed.
Check if *ARGPTR starts with a filename first.
If it does, call locate_first_half again to locate the next
"first half" of the linespec.
Pass FILE_SYMTATB to decode_objc and decode_compound.
Swallow the trailing single-quote if IS_SQUOTE_ENCLOSED.
(locate_first_half): Stop on the first colon seen.
(decode_compound): Add FILE_SYMTAB parameter.
Pass FILE_SYMTAB to lookup_prefix_sym and find_method.
(lookup_prefix_sym): Add FILE_SYMTAB parameter and use
get_search_block with lookup_symbol.
(find_method): Add FILE_SYMTAB parameter and pass it to
find_methods.
(decode_objc): Use get_search_block.
2010-05-31 Keith Seitz <keiths@redhat.com>
PR symtab/12704

133
gdb/linespec.c
View File

@ -66,17 +66,20 @@ static struct symtabs_and_lines decode_objc (char **argptr,
static struct symtabs_and_lines decode_compound (char **argptr,
int funfirstline,
struct linespec_result *canonical,
struct symtab *file_symtab,
char *saved_arg,
char *p);
static struct symbol *lookup_prefix_sym (char **argptr, char *p);
static struct symbol *lookup_prefix_sym (char **argptr, char *p,
struct symtab *);
static struct symtabs_and_lines find_method (int funfirstline,
struct linespec_result *canonical,
char *saved_arg,
char *copy,
struct type *t,
struct symbol *sym_class);
struct symbol *sym_class,
struct symtab *);
static void cplusplus_error (const char *name, const char *fmt, ...)
ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (2, 3);
@ -84,7 +87,7 @@ static void cplusplus_error (const char *name, const char *fmt, ...)
static int total_number_of_methods (struct type *type);
static int find_methods (struct type *, char *,
enum language, struct symbol **);
enum language, struct symbol **, struct symtab *);
static int add_matching_methods (int method_counter, struct type *t,
enum language language,
@ -203,6 +206,30 @@ total_number_of_methods (struct type *type)
return count;
}
/* Returns the block to be used for symbol searches for the given SYMTAB,
which may be NULL. */
static struct block *
get_search_block (struct symtab *symtab)
{
struct block *block;
if (symtab != NULL)
block = BLOCKVECTOR_BLOCK (BLOCKVECTOR (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);
}
return block;
}
/* Recursive helper function for decode_line_1.
Look for methods named NAME in type T.
Return number of matches.
@ -212,7 +239,7 @@ total_number_of_methods (struct type *type)
static int
find_methods (struct type *t, char *name, enum language language,
struct symbol **sym_arr)
struct symbol **sym_arr, struct symtab *file_symtab)
{
int i1 = 0;
int ibase;
@ -235,7 +262,7 @@ find_methods (struct type *t, char *name, enum language language,
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_in_language (class_name, (struct block *) NULL,
&& (lookup_symbol_in_language (class_name, get_search_block (file_symtab),
STRUCT_DOMAIN, language, (int *) NULL)))
{
int method_counter;
@ -290,7 +317,7 @@ find_methods (struct type *t, char *name, enum language language,
if (i1 == 0)
for (ibase = 0; ibase < TYPE_N_BASECLASSES (t); ibase++)
i1 += find_methods (TYPE_BASECLASS (t, ibase), name,
language, sym_arr + i1);
language, sym_arr + i1, file_symtab);
do_cleanups (cleanup);
return i1;
@ -814,6 +841,8 @@ decode_line_1 (char **argptr, int funfirstline, struct symtab *default_symtab,
char *saved_arg = *argptr;
/* If IS_QUOTED, the end of the quoted bit. */
char *end_quote = NULL;
/* Is *ARGPTR enclosed in single quotes? */
int is_squote_enclosed = 0;
/* The "first half" of the linespec. */
char *first_half;
@ -837,7 +866,11 @@ decode_line_1 (char **argptr, int funfirstline, struct symtab *default_symtab,
**argptr) != NULL);
if (is_quoted)
end_quote = skip_quoted (*argptr);
{
end_quote = skip_quoted (*argptr);
if (*end_quote == '\0')
is_squote_enclosed = 1;
}
/* Check to see if it's a multipart linespec (with colons or
periods). */
@ -850,6 +883,26 @@ decode_line_1 (char **argptr, int funfirstline, struct symtab *default_symtab,
first_half = p = locate_first_half (argptr, &is_quote_enclosed);
/* First things first: if ARGPTR starts with a filename, get its
symtab and strip the filename from ARGPTR. */
TRY_CATCH (file_exception, RETURN_MASK_ERROR)
{
file_symtab = symtab_from_filename (argptr, p, is_quote_enclosed);
}
if (file_exception.reason >= 0)
{
/* Check for single quotes on the non-filename part. */
is_quoted = (**argptr
&& strchr (get_gdb_completer_quote_characters (),
**argptr) != NULL);
if (is_quoted)
end_quote = skip_quoted (*argptr);
/* Locate the next "half" of the linespec. */
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))
@ -860,7 +913,7 @@ decode_line_1 (char **argptr, int funfirstline, struct symtab *default_symtab,
{
struct symtabs_and_lines values;
values = decode_objc (argptr, funfirstline, NULL,
values = decode_objc (argptr, funfirstline, file_symtab,
canonical, saved_arg);
if (values.sals != NULL)
return values;
@ -884,20 +937,14 @@ decode_line_1 (char **argptr, int funfirstline, struct symtab *default_symtab,
if (is_quote_enclosed)
++saved_arg;
values = decode_compound (argptr, funfirstline, canonical,
saved_arg, p);
if (is_quoted && **argptr == '\'')
file_symtab, saved_arg, p);
if ((is_quoted || is_squote_enclosed) && **argptr == '\'')
*argptr = *argptr + 1;
return values;
}
/* No, the first part is a filename; set file_symtab to be that file's
symtab. Also, move argptr past the filename. */
TRY_CATCH (file_exception, RETURN_MASK_ERROR)
{
file_symtab = symtab_from_filename (argptr, p, is_quote_enclosed);
}
/* If that failed, maybe we have `function:label'. */
/* If there was an exception looking up a specified filename earlier,
then check whether we were really given `function:label'. */
if (file_exception.reason < 0)
{
function_symbol = find_function_symbol (argptr, p, is_quote_enclosed);
@ -954,7 +1001,7 @@ decode_line_1 (char **argptr, int funfirstline, struct symtab *default_symtab,
if (**argptr == '$') /* May be a convenience variable. */
/* One or two $ chars possible. */
p = skip_quoted (*argptr + (((*argptr)[1] == '$') ? 2 : 1));
else if (is_quoted)
else if (is_quoted || is_squote_enclosed)
{
p = end_quote;
if (p[-1] != '\'')
@ -984,7 +1031,7 @@ decode_line_1 (char **argptr, int funfirstline, struct symtab *default_symtab,
copy[p - *argptr - 1] = '\0';
copy++;
}
else if (is_quoted)
else if (is_quoted || is_squote_enclosed)
copy[p - *argptr - 1] = '\0';
while (*p == ' ' || *p == '\t')
p++;
@ -1160,13 +1207,11 @@ locate_first_half (char **argptr, int *is_quote_enclosed)
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. */
line, a tab, a 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] == ':')
|| ((p[0] == ' ') && !*is_quote_enclosed))
break;
if (p[0] == '.' && strchr (p, ':') == NULL)
@ -1225,20 +1270,8 @@ decode_objc (char **argptr, int funfirstline, struct symtab *file_symtab,
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);
}
find_imps (file_symtab, block, *argptr, NULL, &i1, &i2);
find_imps (file_symtab, get_search_block (file_symtab), *argptr,
NULL, &i1, &i2);
if (i1 > 0)
{
@ -1320,7 +1353,7 @@ decode_objc (char **argptr, int funfirstline, struct symtab *file_symtab,
static struct symtabs_and_lines
decode_compound (char **argptr, int funfirstline,
struct linespec_result *canonical,
struct linespec_result *canonical, struct symtab *file_symtab,
char *the_real_saved_arg, char *p)
{
struct symtabs_and_lines values;
@ -1468,7 +1501,7 @@ decode_compound (char **argptr, int funfirstline,
/* 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);
sym_class = lookup_prefix_sym (argptr, p2, file_symtab);
/* 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
@ -1563,7 +1596,7 @@ decode_compound (char **argptr, int funfirstline,
we'll lookup the whole string in the symbol tables. */
values = find_method (funfirstline, canonical, saved_arg,
copy, t, sym_class);
copy, t, sym_class, file_symtab);
if (saved_java_argptr != NULL && values.nelts == 1)
{
/* The user specified a specific return type for a java method.
@ -1631,7 +1664,7 @@ decode_compound (char **argptr, int funfirstline,
example, say ARGPTR is "AAA::inA::fun" and P is "::inA::fun". */
static struct symbol *
lookup_prefix_sym (char **argptr, char *p)
lookup_prefix_sym (char **argptr, char *p, struct symtab *file_symtab)
{
char *p1;
char *copy;
@ -1654,7 +1687,7 @@ lookup_prefix_sym (char **argptr, char *p)
/* At this point p1->"::inA::fun", p->"inA::fun" copy->"AAA",
argptr->"inA::fun". */
sym = lookup_symbol (copy, get_selected_block (0), STRUCT_DOMAIN, 0);
sym = lookup_symbol (copy, get_search_block (file_symtab), STRUCT_DOMAIN, 0);
if (sym == NULL)
{
/* Typedefs are in VAR_DOMAIN so the above symbol lookup will
@ -1684,7 +1717,8 @@ lookup_prefix_sym (char **argptr, char *p)
static struct symtabs_and_lines
find_method (int funfirstline, struct linespec_result *canonical,
char *saved_arg,
char *copy, struct type *t, struct symbol *sym_class)
char *copy, struct type *t, struct symbol *sym_class,
struct symtab *file_symtab)
{
struct symtabs_and_lines values;
struct symbol *sym = NULL;
@ -1695,7 +1729,8 @@ find_method (int funfirstline, struct linespec_result *canonical,
/* Find all methods with a matching name, and put them in
sym_arr. */
i1 = find_methods (t, copy, SYMBOL_LANGUAGE (sym_class), sym_arr);
i1 = find_methods (t, copy, SYMBOL_LANGUAGE (sym_class), sym_arr,
file_symtab);
if (i1 == 1)
{
@ -2086,11 +2121,7 @@ decode_variable (char *copy, int funfirstline,
struct symbol *sym;
struct minimal_symbol *msymbol;
sym = lookup_symbol (copy,
(file_symtab
? BLOCKVECTOR_BLOCK (BLOCKVECTOR (file_symtab),
STATIC_BLOCK)
: get_selected_block (0)),
sym = lookup_symbol (copy, get_search_block (file_symtab),
VAR_DOMAIN, 0);
if (sym != NULL)