struct line_maps *line_table;
+/* Expand the source location LOC into a human readable location. If
+ LOC resolves to a builtin location, the file name of the readable
+ location is set to the string "<built-in>". */
+
expanded_location
expand_location (source_location loc)
{
expanded_location xloc;
+ const struct line_map *map;
+
+ loc = linemap_resolve_location (line_table, loc,
+ LRK_SPELLING_LOCATION, &map);
+ xloc = linemap_expand_location (line_table, map, loc);
+
if (loc <= BUILTINS_LOCATION)
- {
- xloc.file = loc == UNKNOWN_LOCATION ? NULL : _("<built-in>");
- xloc.line = 0;
- xloc.column = 0;
- xloc.sysp = 0;
- }
- else
- xloc = linemap_expand_location_full (line_table, loc,
- LRK_SPELLING_LOCATION);
+ xloc.file = loc == UNKNOWN_LOCATION ? NULL : _("<built-in>");
+
return xloc;
}
+
+#define ONE_K 1024
+#define ONE_M (ONE_K * ONE_K)
+
+/* Display a number as an integer multiple of either:
+ - 1024, if said integer is >= to 10 K (in base 2)
+ - 1024 * 1024, if said integer is >= 10 M in (base 2)
+ */
+#define SCALE(x) ((unsigned long) ((x) < 10 * ONE_K \
+ ? (x) \
+ : ((x) < 10 * ONE_M \
+ ? (x) / ONE_K \
+ : (x) / ONE_M)))
+
+/* For a given integer, display either:
+ - the character 'k', if the number is higher than 10 K (in base 2)
+ but strictly lower than 10 M (in base 2)
+ - the character 'M' if the number is higher than 10 M (in base2)
+ - the charcter ' ' if the number is strictly lower than 10 K */
+#define STAT_LABEL(x) ((x) < 10 * ONE_K ? ' ' : ((x) < 10 * ONE_M ? 'k' : 'M'))
+
+/* Display an integer amount as multiple of 1K or 1M (in base 2).
+ Display the correct unit (either k, M, or ' ') after the amout, as
+ well. */
+#define FORMAT_AMOUNT(size) SCALE (size), STAT_LABEL (size)
+
+/* Dump statistics to stderr about the memory usage of the line_table
+ set of line maps. This also displays some statistics about macro
+ expansion. */
+
+void
+dump_line_table_statistics (void)
+{
+ struct linemap_stats s;
+ long total_used_map_size,
+ macro_maps_size,
+ total_allocated_map_size;
+
+ memset (&s, 0, sizeof (s));
+
+ linemap_get_statistics (line_table, &s);
+
+ macro_maps_size = s.macro_maps_used_size
+ + s.macro_maps_locations_size;
+
+ total_allocated_map_size = s.ordinary_maps_allocated_size
+ + s.macro_maps_allocated_size
+ + s.macro_maps_locations_size;
+
+ total_used_map_size = s.ordinary_maps_used_size
+ + s.macro_maps_used_size
+ + s.macro_maps_locations_size;
+
+ fprintf (stderr, "Number of expanded macros: %5ld\n",
+ s.num_expanded_macros);
+ if (s.num_expanded_macros != 0)
+ fprintf (stderr, "Average number of tokens per macro expansion: %5ld\n",
+ s.num_macro_tokens / s.num_expanded_macros);
+ fprintf (stderr,
+ "\nLine Table allocations during the "
+ "compilation process\n");
+ fprintf (stderr, "Number of ordinary maps used: %5ld%c\n",
+ SCALE (s.num_ordinary_maps_used),
+ STAT_LABEL (s.num_ordinary_maps_used));
+ fprintf (stderr, "Ordinary map used size: %5ld%c\n",
+ SCALE (s.ordinary_maps_used_size),
+ STAT_LABEL (s.ordinary_maps_used_size));
+ fprintf (stderr, "Number of ordinary maps allocated: %5ld%c\n",
+ SCALE (s.num_ordinary_maps_allocated),
+ STAT_LABEL (s.num_ordinary_maps_allocated));
+ fprintf (stderr, "Ordinary maps allocated size: %5ld%c\n",
+ SCALE (s.ordinary_maps_allocated_size),
+ STAT_LABEL (s.ordinary_maps_allocated_size));
+ fprintf (stderr, "Number of macro maps used: %5ld%c\n",
+ SCALE (s.num_macro_maps_used),
+ STAT_LABEL (s.num_macro_maps_used));
+ fprintf (stderr, "Macro maps used size: %5ld%c\n",
+ SCALE (s.macro_maps_used_size),
+ STAT_LABEL (s.macro_maps_used_size));
+ fprintf (stderr, "Macro maps locations size: %5ld%c\n",
+ SCALE (s.macro_maps_locations_size),
+ STAT_LABEL (s.macro_maps_locations_size));
+ fprintf (stderr, "Macro maps size: %5ld%c\n",
+ SCALE (macro_maps_size),
+ STAT_LABEL (macro_maps_size));
+ fprintf (stderr, "Duplicated maps locations size: %5ld%c\n",
+ SCALE (s.duplicated_macro_maps_locations_size),
+ STAT_LABEL (s.duplicated_macro_maps_locations_size));
+ fprintf (stderr, "Total allocated maps size: %5ld%c\n",
+ SCALE (total_allocated_map_size),
+ STAT_LABEL (total_allocated_map_size));
+ fprintf (stderr, "Total used maps size: %5ld%c\n",
+ SCALE (total_used_map_size),
+ STAT_LABEL (total_used_map_size));
+ fprintf (stderr, "\n");
+}