static void sources_info (char *, int);
-static void output_source_filename (const char *, int *);
-
static int find_line_common (struct linetable *, int, int *, int);
static struct symbol *lookup_symbol_aux (const char *name,
}
\f
+/* Cache to watch for file names already seen by filename_seen. */
+
+struct filename_seen_cache
+{
+ /* Table of files seen so far. */
+ const char **tab;
+
+ /* Allocated size of tab in elements. */
+ int tab_alloc_size;
+#define INITIAL_FILENAME_SEEN_CACHE_SIZE 100
+
+ /* Current size of tab in elements. */
+ int tab_cur_size;
+};
+
+/* filename_seen_cache constructor. */
+
+static struct filename_seen_cache *
+create_filename_seen_cache (void)
+{
+ struct filename_seen_cache *cache;
+
+ cache = XNEW (struct filename_seen_cache);
+ cache->tab_alloc_size = INITIAL_FILENAME_SEEN_CACHE_SIZE;
+ cache->tab = XNEWVEC (const char *, cache->tab_alloc_size);
+ cache->tab_cur_size = 0;
+
+ return cache;
+}
+
+/* Empty the cache, but do not delete it. */
+
+static void
+clear_filename_seen_cache (struct filename_seen_cache * cache)
+{
+ cache->tab_cur_size = 0;
+}
+
+/* filename_seen_cache destructor.
+ This takes a void * argument as it is generally used as a cleanup. */
+
+static void
+delete_filename_seen_cache (void *ptr)
+{
+ struct filename_seen_cache *cache = ptr;
+
+ xfree (cache->tab);
+ xfree (cache);
+}
+
/* If FILE is not already in the table of files, return zero;
otherwise return non-zero. Optionally add FILE to the table if ADD
is non-zero. If *FIRST is non-zero, forget the old table
contents. */
static int
-filename_seen (const char *file, int add, int *first)
+filename_seen (struct filename_seen_cache *cache, const char *file, int add)
{
- /* Table of files seen so far. */
- static const char **tab = NULL;
- /* Allocated size of tab in elements.
- Start with one 256-byte block (when using GNU malloc.c).
- 24 is the malloc overhead when range checking is in effect. */
- static int tab_alloc_size = (256 - 24) / sizeof (char *);
- /* Current size of tab in elements. */
- static int tab_cur_size;
const char **p;
- if (*first)
- {
- if (tab == NULL)
- tab = (const char **) xmalloc (tab_alloc_size * sizeof (*tab));
- tab_cur_size = 0;
- }
-
/* Is FILE in tab? */
- for (p = tab; p < tab + tab_cur_size; p++)
+ for (p = cache->tab; p < cache->tab + cache->tab_cur_size; p++)
if (filename_cmp (*p, file) == 0)
return 1;
/* No; maybe add it to tab. */
if (add)
{
- if (tab_cur_size == tab_alloc_size)
+ if (cache->tab_cur_size == cache->tab_alloc_size)
{
- tab_alloc_size *= 2;
- tab = (const char **) xrealloc ((char *) tab,
- tab_alloc_size * sizeof (*tab));
+ cache->tab_alloc_size *= 2;
+ cache->tab = XRESIZEVEC (const char *, cache->tab,
+ cache->tab_alloc_size);
}
- tab[tab_cur_size++] = file;
+ cache->tab[cache->tab_cur_size++] = file;
}
return 0;
}
+/* Data structure to maintain printing state for output_source_filename. */
+
+struct output_source_filename_data
+{
+ /* Cache of what we've seen so far. */
+ struct filename_seen_cache *filename_seen_cache;
+
+ /* Flag of whether we're printing the first one. */
+ int first;
+};
+
/* Slave routine for sources_info. Force line breaks at ,'s.
- NAME is the name to print and *FIRST is nonzero if this is the first
- name printed. Set *FIRST to zero. */
+ NAME is the name to print.
+ DATA contains the state for printing and watching for duplicates. */
static void
-output_source_filename (const char *name, int *first)
+output_source_filename (const char *name,
+ struct output_source_filename_data *data)
{
/* Since a single source file can result in several partial symbol
tables, we need to avoid printing it more than once. Note: if
symtabs; it doesn't hurt to check. */
/* Was NAME already seen? */
- if (filename_seen (name, 1, first))
+ if (filename_seen (data->filename_seen_cache, name, 1))
{
/* Yes; don't print it again. */
return;
}
+
/* No; print it and reset *FIRST. */
- if (*first)
- {
- *first = 0;
- }
- else
- {
- printf_filtered (", ");
- }
+ if (! data->first)
+ printf_filtered (", ");
+ data->first = 0;
wrap_here ("");
fputs_filtered (name, gdb_stdout);
{
struct symtab *s;
struct objfile *objfile;
- int first;
+ struct output_source_filename_data data;
+ struct cleanup *cleanups;
if (!have_full_symbols () && !have_partial_symbols ())
{
error (_("No symbol table is loaded. Use the \"file\" command."));
}
+ data.filename_seen_cache = create_filename_seen_cache ();
+ cleanups = make_cleanup (delete_filename_seen_cache,
+ data.filename_seen_cache);
+
printf_filtered ("Source files for which symbols have been read in:\n\n");
- first = 1;
+ data.first = 1;
ALL_SYMTABS (objfile, s)
{
const char *fullname = symtab_to_fullname (s);
- output_source_filename (fullname ? fullname : s->filename, &first);
+ output_source_filename (fullname ? fullname : s->filename, &data);
}
printf_filtered ("\n\n");
printf_filtered ("Source files for which symbols "
"will be read in on demand:\n\n");
- first = 1;
- map_partial_symbol_filenames (output_partial_symbol_filename, &first,
+ clear_filename_seen_cache (data.filename_seen_cache);
+ data.first = 1;
+ map_partial_symbol_filenames (output_partial_symbol_filename, &data,
1 /*need_fullname*/);
printf_filtered ("\n");
+
+ do_cleanups (cleanups);
}
static int
map_partial_symbol_filenames. */
struct add_partial_filename_data
{
- int *first;
+ struct filename_seen_cache *filename_seen_cache;
char *text;
char *word;
int text_len;
if (not_interesting_fname (filename))
return;
- if (!filename_seen (filename, 1, data->first)
+ if (!filename_seen (data->filename_seen_cache, filename, 1)
&& filename_ncmp (filename, data->text, data->text_len) == 0)
{
/* This file matches for a completion; add it to the
const char *base_name = lbasename (filename);
if (base_name != filename
- && !filename_seen (base_name, 1, data->first)
+ && !filename_seen (data->filename_seen_cache, base_name, 1)
&& filename_ncmp (base_name, data->text, data->text_len) == 0)
add_filename_to_list (base_name, data->text, data->word, data->list);
}
{
struct symtab *s;
struct objfile *objfile;
- int first = 1;
size_t text_len = strlen (text);
VEC (char_ptr) *list = NULL;
const char *base_name;
struct add_partial_filename_data datum;
- struct cleanup *back_to;
+ struct filename_seen_cache *filename_seen_cache;
+ struct cleanup *back_to, *cache_cleanup;
if (!have_full_symbols () && !have_partial_symbols ())
return list;
back_to = make_cleanup (do_free_completion_list, &list);
+ filename_seen_cache = create_filename_seen_cache ();
+ cache_cleanup = make_cleanup (delete_filename_seen_cache,
+ filename_seen_cache);
+
ALL_SYMTABS (objfile, s)
{
if (not_interesting_fname (s->filename))
continue;
- if (!filename_seen (s->filename, 1, &first)
+ if (!filename_seen (filename_seen_cache, s->filename, 1)
&& filename_ncmp (s->filename, text, text_len) == 0)
{
/* This file matches for a completion; add it to the current
command do when they parse file names. */
base_name = lbasename (s->filename);
if (base_name != s->filename
- && !filename_seen (base_name, 1, &first)
+ && !filename_seen (filename_seen_cache, base_name, 1)
&& filename_ncmp (base_name, text, text_len) == 0)
add_filename_to_list (base_name, text, word, &list);
}
}
- datum.first = &first;
+ datum.filename_seen_cache = filename_seen_cache;
datum.text = text;
datum.word = word;
datum.text_len = text_len;
datum.list = &list;
map_partial_symbol_filenames (maybe_add_partial_symtab_filename, &datum,
0 /*need_fullname*/);
+
+ do_cleanups (cache_cleanup);
discard_cleanups (back_to);
return list;
projects / binutils-gdb.git / commitdiff