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Ada: allow unqualified function names in linespecs

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This is the meat, where we replace the old la_symbol_name_compare
language method with the new ada_get_symbol_name_match_p.
It fixes the problem when trying to insert a breakpoint on "+".

gdb/ChangeLog:

        * language.h (symbol_name_match_p_ftype): New typedef.
        (struct language_defn): Replace field la_symbol_name_compare
        by la_get_symbol_name_match_p.
        * ada-lang.c (ada_get_symbol_name_match_p): New function.
        (ada_language_defn): Use it.
        * linespec.c (struct symbol_matcher_data): New type.
        (iterate_name_matcher): Rewrite.
        (iterate_over_all_matching_symtabs): Pass a pointer to
        a symbol_matcher_data struct to expand_symtabs_matching
        instead of just the lookup name.
        * c-lang.c, d-lang.c, jv-lang.c, m2-lang.c, objc-lang.c,
        opencl-lang.c, p-lang.c, language.c: Delete field
        la_symbol_name_compare, and replace by NULL for new field
        la_get_symbol_name_match_p.
        * symfile.h (struct quick_symbol_functions): Update comment.
This commit is contained in:
Joel Brobecker 2012-01-26 04:20:36 +00:00
parent b8b196db1e
commit 74ccd7f58b
14 changed files with 86 additions and 35 deletions
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18
gdb/ChangeLog
View File

@ -1,3 +1,21 @@
2012-01-26 Joel Brobecker <brobecker@adacore.com>
* language.h (symbol_name_match_p_ftype): New typedef.
(struct language_defn): Replace field la_symbol_name_compare
by la_get_symbol_name_match_p.
* ada-lang.c (ada_get_symbol_name_match_p): New function.
(ada_language_defn): Use it.
* linespec.c (struct symbol_matcher_data): New type.
(iterate_name_matcher): Rewrite.
(iterate_over_all_matching_symtabs): Pass a pointer to
a symbol_matcher_data struct to expand_symtabs_matching
instead of just the lookup name.
* c-lang.c, d-lang.c, jv-lang.c, m2-lang.c, objc-lang.c,
opencl-lang.c, p-lang.c, language.c: Delete field
la_symbol_name_compare, and replace by NULL for new field
la_get_symbol_name_match_p.
* symfile.h (struct quick_symbol_functions): Update comment.
2012-01-25 Tom Tromey <tromey@redhat.com>
* breakpoint.c (bpstat_stop_status): Check 'breakpoint_at' before

14
gdb/ada-lang.c
View File

@ -12319,6 +12319,18 @@ static const struct exp_descriptor ada_exp_descriptor = {
ada_evaluate_subexp
};
/* Implement the "la_get_symbol_name_match_p" language_defn method
for Ada. */
static symbol_name_match_p_ftype
ada_get_symbol_name_match_p (const char *lookup_name)
{
if (should_use_wild_match (lookup_name))
return wild_match;
else
return compare_names;
}
const struct language_defn ada_language_defn = {
"ada", /* Language name */
language_ada,
@ -12355,7 +12367,7 @@ const struct language_defn ada_language_defn = {
ada_print_array_index,
default_pass_by_reference,
c_get_string,
compare_names,
ada_get_symbol_name_match_p, /* la_get_symbol_name_match_p */
ada_iterate_over_symbols,
LANG_MAGIC
};

8
gdb/c-lang.c
View File

@ -863,7 +863,7 @@ const struct language_defn c_language_defn =
default_print_array_index,
default_pass_by_reference,
c_get_string,
strcmp_iw_ordered,
NULL, /* la_get_symbol_name_match_p */
iterate_over_symbols,
LANG_MAGIC
};
@ -986,7 +986,7 @@ const struct language_defn cplus_language_defn =
default_print_array_index,
cp_pass_by_reference,
c_get_string,
strcmp_iw_ordered,
NULL, /* la_get_symbol_name_match_p */
iterate_over_symbols,
LANG_MAGIC
};
@ -1027,7 +1027,7 @@ const struct language_defn asm_language_defn =
default_print_array_index,
default_pass_by_reference,
c_get_string,
strcmp_iw_ordered,
NULL, /* la_get_symbol_name_match_p */
iterate_over_symbols,
LANG_MAGIC
};
@ -1073,7 +1073,7 @@ const struct language_defn minimal_language_defn =
default_print_array_index,
default_pass_by_reference,
c_get_string,
strcmp_iw_ordered,
NULL, /* la_get_symbol_name_match_p */
iterate_over_symbols,
LANG_MAGIC
};

2
gdb/d-lang.c
View File

@ -272,7 +272,7 @@ static const struct language_defn d_language_defn =
default_print_array_index,
default_pass_by_reference,
c_get_string,
strcmp_iw_ordered,
NULL, /* la_get_symbol_name_match_p */
NULL,
LANG_MAGIC
};

2
gdb/f-lang.c
View File

@ -309,7 +309,7 @@ const struct language_defn f_language_defn =
default_print_array_index,
default_pass_by_reference,
default_get_string,
strcmp_iw_ordered,
NULL, /* la_get_symbol_name_match_p */
iterate_over_symbols,
LANG_MAGIC
};

2
gdb/jv-lang.c
View File

@ -1196,7 +1196,7 @@ const struct language_defn java_language_defn =
default_print_array_index,
default_pass_by_reference,
default_get_string,
strcmp_iw_ordered,
NULL, /* la_get_symbol_name_match_p */
iterate_over_symbols,
LANG_MAGIC
};

6
gdb/language.c
View File

@ -933,7 +933,7 @@ const struct language_defn unknown_language_defn =
default_print_array_index,
default_pass_by_reference,
default_get_string,
strcmp_iw_ordered,
NULL, /* la_get_symbol_name_match_p */
iterate_over_symbols,
LANG_MAGIC
};
@ -976,7 +976,7 @@ const struct language_defn auto_language_defn =
default_print_array_index,
default_pass_by_reference,
default_get_string,
strcmp_iw_ordered,
NULL, /* la_get_symbol_name_match_p */
iterate_over_symbols,
LANG_MAGIC
};
@ -1017,7 +1017,7 @@ const struct language_defn local_language_defn =
default_print_array_index,
default_pass_by_reference,
default_get_string,
strcmp_iw_ordered,
NULL, /* la_get_symbol_name_match_p */
iterate_over_symbols,
LANG_MAGIC
};

29
gdb/language.h
View File

@ -136,6 +136,16 @@ struct language_arch_info
struct type *bool_type_default;
};
/* A pointer to a function expected to return nonzero if
SYMBOL_SEARCH_NAME matches the given LOOKUP_NAME.
SYMBOL_SEARCH_NAME should be a symbol's "search" name.
LOOKUP_NAME should be the name of an entity after it has been
transformed for lookup. */
typedef int (*symbol_name_match_p_ftype) (const char *symbol_search_name,
const char *lookup_name);
/* Structure tying together assorted information about a language. */
struct language_defn
@ -318,19 +328,14 @@ struct language_defn
void (*la_get_string) (struct value *value, gdb_byte **buffer, int *length,
struct type **chartype, const char **charset);
/* Compare two symbol names according to language rules. For
instance, in C++, we might want to ignore whitespaces in
the symbol name. Or some case-insensitive language might
want to ignore casing during the match.
/* Return a pointer to the function that should be used to match
a symbol name against LOOKUP_NAME. This is mostly for languages
such as Ada where the matching algorithm depends on LOOKUP_NAME.
Both STR1 and STR2 are expected to be demangled name, except
for Ada, where STR1 and STR2 are expected to be encoded names.
The latter is because searches are performed using the encoded
name in Ada.
The return value follows the same spirit as strcmp. */
int (*la_symbol_name_compare) (const char *str1, const char *str2);
This field may be NULL, in which case strcmp_iw will be used
to perform the matching. */
symbol_name_match_p_ftype (*la_get_symbol_name_match_p)
(const char *lookup_name);
/* Find all symbols in the current program space matching NAME in
DOMAIN, according to this language's rules.

24
gdb/linespec.c
View File

@ -321,6 +321,17 @@ cplusplus_error (const char *name, const char *fmt, ...)
throw_error (NOT_FOUND_ERROR, "%s", message);
}
/* Some data for the expand_symtabs_matching callback. */
struct symbol_matcher_data
{
/* The lookup name against which symbol name should be compared. */
const char *lookup_name;
/* The routine to be used for comparison. */
symbol_name_match_p_ftype symbol_name_match_p;
};
/* A helper for iterate_over_all_matching_symtabs that is passed as a
callback to the expand_symtabs_matching method. */
@ -328,9 +339,9 @@ static int
iterate_name_matcher (const struct language_defn *language,
const char *name, void *d)
{
const char **dname = d;
const struct symbol_matcher_data *data = d;
if (language->la_symbol_name_compare (name, *dname) == 0)
if (data->symbol_name_match_p (name, data->lookup_name))
return 1;
return 0;
}
@ -349,6 +360,13 @@ iterate_over_all_matching_symtabs (const char *name,
{
struct objfile *objfile;
struct program_space *pspace;
struct symbol_matcher_data matcher_data;
matcher_data.lookup_name = name;
matcher_data.symbol_name_match_p =
current_language->la_get_symbol_name_match_p != NULL
? current_language->la_get_symbol_name_match_p (name)
: strcmp_iw;
ALL_PSPACES (pspace)
{
@ -367,7 +385,7 @@ iterate_over_all_matching_symtabs (const char *name,
objfile->sf->qf->expand_symtabs_matching (objfile, NULL,
iterate_name_matcher,
ALL_DOMAIN,
&name);
&matcher_data);
ALL_OBJFILE_SYMTABS (objfile, symtab)
{

2
gdb/m2-lang.c
View File

@ -401,7 +401,7 @@ const struct language_defn m2_language_defn =
default_print_array_index,
default_pass_by_reference,
default_get_string,
strcmp_iw_ordered,
NULL, /* la_get_symbol_name_match_p */
iterate_over_symbols,
LANG_MAGIC
};

2
gdb/objc-lang.c
View File

@ -540,7 +540,7 @@ const struct language_defn objc_language_defn = {
default_print_array_index,
default_pass_by_reference,
default_get_string,
strcmp_iw_ordered,
NULL, /* la_get_symbol_name_match_p */
iterate_over_symbols,
LANG_MAGIC
};

2
gdb/opencl-lang.c
View File

@ -1024,7 +1024,7 @@ const struct language_defn opencl_language_defn =
default_print_array_index,
default_pass_by_reference,
c_get_string,
strcmp_iw_ordered,
NULL, /* la_get_symbol_name_match_p */
iterate_over_symbols,
LANG_MAGIC
};

2
gdb/p-lang.c
View File

@ -459,7 +459,7 @@ const struct language_defn pascal_language_defn =
default_print_array_index,
default_pass_by_reference,
default_get_string,
strcmp_iw_ordered,
NULL, /* la_get_symbol_name_match_p */
iterate_over_symbols,
LANG_MAGIC
};

8
gdb/symfile.h
View File

@ -258,12 +258,10 @@ struct quick_symbol_functions
file is skipped. If FILE_MATCHER is NULL such file is not skipped.
Otherwise, if KIND does not match this symbol is skipped.
If even KIND matches, then NAME_MATCHER is called for each symbol
defined in the file. The current language, the symbol name and
DATA are passed to NAME_MATCHER. The symbol "search" name should
be passed to NAME_MATCHER (see la_symbol_name_compare in struct
language_defn for more details on this).
defined in the file. The current language, the symbol "search"
name and DATA are passed to NAME_MATCHER.
If NAME_MATCHER returns zero, then this symbol is skipped.