diff options
Diffstat (limited to 'libcpp/line-map.c')
| -rw-r--r-- | libcpp/line-map.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/libcpp/line-map.c b/libcpp/line-map.c index 3dbaeab..9086b3e 100644 --- a/libcpp/line-map.c +++ b/libcpp/line-map.c @@ -46,6 +46,10 @@ static source_location linemap_macro_loc_to_exp_point (struct line_maps *, source_location, const struct line_map **); +/* Counters defined in macro.c. */ +extern unsigned num_expanded_macros_counter; +extern unsigned num_macro_tokens_counter; + /* Initialize a line map set. */ void @@ -1143,3 +1147,62 @@ linemap_dump_location (struct line_maps *set, fprintf (stream, "{P:%s;F:%s;L:%d;C:%d;S:%d;M:%p;E:%d,LOC:%d}", path, from, l, c, s, (void*)map, e, loc); } + +/* Compute and return statistics about the memory consumption of some + parts of the line table SET. */ + +void +linemap_get_statistics (struct line_maps *set, + struct linemap_stats *s) +{ + size_t ordinary_maps_allocated_size, ordinary_maps_used_size, + macro_maps_allocated_size, macro_maps_used_size, + macro_maps_locations_size = 0, duplicated_macro_maps_locations_size = 0; + + struct line_map *cur_map; + + ordinary_maps_allocated_size = + LINEMAPS_ORDINARY_ALLOCATED (set) * sizeof (struct line_map); + + ordinary_maps_used_size = + LINEMAPS_ORDINARY_USED (set) * sizeof (struct line_map); + + macro_maps_allocated_size = + LINEMAPS_MACRO_ALLOCATED (set) * sizeof (struct line_map); + + for (cur_map = LINEMAPS_MACRO_MAPS (set); + cur_map && cur_map <= LINEMAPS_LAST_MACRO_MAP (set); + ++cur_map) + { + unsigned i; + + linemap_assert (linemap_macro_expansion_map_p (cur_map)); + + macro_maps_locations_size += + 2 * MACRO_MAP_NUM_MACRO_TOKENS (cur_map) * sizeof (source_location); + + for (i = 0; i < 2 * MACRO_MAP_NUM_MACRO_TOKENS (cur_map); i += 2) + { + if (MACRO_MAP_LOCATIONS (cur_map)[i] == + MACRO_MAP_LOCATIONS (cur_map)[i + 1]) + duplicated_macro_maps_locations_size += + sizeof (source_location); + } + } + + macro_maps_used_size = + LINEMAPS_MACRO_USED (set) * sizeof (struct line_map); + + s->num_ordinary_maps_allocated = LINEMAPS_ORDINARY_ALLOCATED (set); + s->num_ordinary_maps_used = LINEMAPS_ORDINARY_USED (set); + s->ordinary_maps_allocated_size = ordinary_maps_allocated_size; + s->ordinary_maps_used_size = ordinary_maps_used_size; + s->num_expanded_macros = num_expanded_macros_counter; + s->num_macro_tokens = num_macro_tokens_counter; + s->num_macro_maps_used = LINEMAPS_MACRO_USED (set); + s->macro_maps_allocated_size = macro_maps_allocated_size; + s->macro_maps_locations_size = macro_maps_locations_size; + s->macro_maps_used_size = macro_maps_used_size; + s->duplicated_macro_maps_locations_size = + duplicated_macro_maps_locations_size; +} |