+2018-07-11 Nathan Sidwell <nathan@acm.org>
+
+ Store include-from as a location, not line-map index.
+ libcpp/
+ * include/line-map.h (line_map_ordinary): Replace included_from
+ index with included_at source_location.
+ (ORDINARY_MAP_INCLUDER_FILE_INDEX, LAST_SOURCE_LINE_LOCATION)
+ (LAST_SOURCE_LINE, LAST_SOURCE_COLUMN): Delete.
+ (INCUDED_FROM): Delete.
+ (INCLUDED_AT, linemap_included_at): New.
+ (MAIN_FILE_P): Adjust.
+ * directives.c (do_linemarker): Use linemap_included_at.
+ * line-map.c (include_at_map): New.
+ (line_check_files_exited): Use it.
+ (LAST_SOURCE_LINE_LOCATION): New (moved from header).
+ (linemap_add, linemap_dump, linemap_dump_location): Adjust.
+ gcc/
+ * diagnostic.c (diagnostic_report_current_module): Use
+ linemap_included_at. Adjust line & col discovery.
+ gcc/c-family/
+ * c-common.c (try_to_locate_new_include_insertion_point): Use
+ linemap_included_at.
+ * c-lex.c (fe_file_change): Use INCLUDED_AT.
+ * c-ppoutput.c (pp_file_change): Likewise.
+ gcc/fortran/
+ * cpp.c (cb_file_change): Adjust for line map inclusion changes.
+
2018-07-09 Nathan Sidwell <nathan@acm.org>
libcpp/
const line_map_ordinary *ord_map
= LINEMAPS_ORDINARY_MAP_AT (line_table, i);
- const line_map_ordinary *from = INCLUDED_FROM (line_table, ord_map);
- if (from)
+ if (const line_map_ordinary *from
+ = linemap_included_at (line_table, ord_map))
if (from->to_file == file)
{
last_include_ord_map = from;
we already did in compile_file. */
if (!MAIN_FILE_P (new_map))
{
- unsigned int included_at = LAST_SOURCE_LINE_LOCATION (new_map - 1);
+ location_t included_at = INCLUDED_AT (new_map);
int line = 0;
if (included_at > BUILTINS_LOCATION)
line = SOURCE_LINE (new_map - 1, included_at);
/* Bring current file to correct line when entering a new file. */
if (map->reason == LC_ENTER)
{
- const line_map_ordinary *from = INCLUDED_FROM (line_table, map);
- maybe_print_line (LAST_SOURCE_LINE_LOCATION (from));
+ maybe_print_line (INCLUDED_AT (map));
+ flags = " 1";
}
- if (map->reason == LC_ENTER)
- flags = " 1";
else if (map->reason == LC_LEAVE)
flags = " 2";
print_line (map->start_location, flags);
bool first = true;
do
{
- map = INCLUDED_FROM (line_table, map);
+ where = INCLUDED_AT (map);
+ map = linemap_included_at (line_table, map);
const char *line_col
- = maybe_line_and_column (LAST_SOURCE_LINE (map),
+ = maybe_line_and_column (SOURCE_LINE (map, where),
first && context->show_column
- ? LAST_SOURCE_COLUMN (map) : 0);
+ ? SOURCE_COLUMN (map, where) : 0);
static const char *const msgs[] =
{
N_("In file included from"),
{
/* Bring current file to correct line when entering a new file. */
if (map->reason == LC_ENTER)
- {
- const line_map_ordinary *from = INCLUDED_FROM (line_table, map);
- maybe_print_line (LAST_SOURCE_LINE_LOCATION (from));
- }
+ maybe_print_line (INCLUDED_AT (map));
if (map->reason == LC_ENTER)
flags = " 1";
else if (map->reason == LC_LEAVE)
/* Reread map since cpp_get_token can invalidate it with a
reallocation. */
map = LINEMAPS_LAST_ORDINARY_MAP (line_table);
- const line_map_ordinary *from;
+ const line_map_ordinary *from = linemap_included_at (line_table, map);
if (MAIN_FILE_P (map)
- || (new_file
- && (from = INCLUDED_FROM (pfile->line_table, map)) != NULL
+ || (from
&& filename_cmp (ORDINARY_MAP_FILE_NAME (from), new_file) != 0))
{
cpp_warning (pfile, CPP_W_NONE,
const char *to_file;
linenum_type to_line;
- /* An index into the set that gives the line mapping at whose end
- the current one was included. File(s) at the bottom of the
- include stack have this set to -1. */
- int included_from;
+ /* Location at which this line map was included from. For regular
+ #includes, this location will be the last location of a map. For
+ outermost file, this is 0. */
+ source_location included_at;
/* Size is 20 or 24 bytes, no padding */
};
return ord_map->to_line;
}
-/* Get the index of the ordinary map at whose end
- ordinary map MAP was included.
-
- File(s) at the bottom of the include stack have this set. */
-
-inline int
-ORDINARY_MAP_INCLUDER_FILE_INDEX (const line_map_ordinary *ord_map)
-{
- return ord_map->included_from;
-}
-
/* Return a positive value if map encodes locations from a system
header, 0 otherwise. Returns 1 if ordinary map MAP encodes locations
in a system header and 2 if it encodes locations in a C system header
& ((1 << ord_map->m_column_and_range_bits) - 1)) >> ord_map->m_range_bits;
}
-/* Return the location of the last source line within an ordinary
- map. */
-inline source_location
-LAST_SOURCE_LINE_LOCATION (const line_map_ordinary *map)
-{
- return (((map[1].start_location - 1
- - map->start_location)
- & ~((1 << map->m_column_and_range_bits) - 1))
- + map->start_location);
-}
-
-/* Returns the last source line number within an ordinary map. This
- is the (last) line of the #include, or other directive, that caused
- a map change. */
-inline linenum_type
-LAST_SOURCE_LINE (const line_map_ordinary *map)
-{
- return SOURCE_LINE (map, LAST_SOURCE_LINE_LOCATION (map));
-}
-/* Return the last column number within an ordinary map. */
-
-inline linenum_type
-LAST_SOURCE_COLUMN (const line_map_ordinary *map)
+inline source_location
+INCLUDED_AT (const line_map_ordinary *ord_map)
{
- return SOURCE_COLUMN (map, LAST_SOURCE_LINE_LOCATION (map));
+ return ord_map->included_at;
}
-/* Returns the map a given map was included from, or NULL if the map
- belongs to the main file, i.e, a file that wasn't included by
- another one. */
-inline line_map_ordinary *
-INCLUDED_FROM (struct line_maps *set, const line_map_ordinary *ord_map)
-{
- return ((ord_map->included_from == -1)
- ? NULL
- : LINEMAPS_ORDINARY_MAP_AT (set, ord_map->included_from));
-}
+/* The linemap containing the included-from location. */
+const line_map_ordinary *linemap_included_at (line_maps *set,
+ const line_map_ordinary *);
/* True if the map is at the bottom of the include stack. */
inline bool
MAIN_FILE_P (const line_map_ordinary *ord_map)
{
- return ord_map->included_from < 0;
+ return ord_map->included_at == 0;
}
/* Encode and return a source_location from a column number. The
set->builtin_location = builtin_location;
}
+/* Return the ordinary line map from whence MAP was included. Returns
+ NULL if MAP was not an included. */
+
+const line_map_ordinary *
+linemap_included_at (line_maps *set, const line_map_ordinary *map)
+{
+ return linemap_ordinary_map_lookup (set, INCLUDED_AT (map));
+}
+
/* Check for and warn about line_maps entered but not exited. */
void
linemap_check_files_exited (struct line_maps *set)
{
- const line_map_ordinary *map;
/* Depending upon whether we are handling preprocessed input or
not, this can be a user error or an ICE. */
- for (map = LINEMAPS_LAST_ORDINARY_MAP (set);
+ for (const line_map_ordinary *map = LINEMAPS_LAST_ORDINARY_MAP (set);
! MAIN_FILE_P (map);
- map = INCLUDED_FROM (set, map))
+ map = linemap_included_at (set, map))
fprintf (stderr, "line-map.c: file \"%s\" entered but not left\n",
ORDINARY_MAP_FILE_NAME (map));
}
return result;
}
+/* Return the location of the last source line within an ordinary
+ map. */
+inline source_location
+LAST_SOURCE_LINE_LOCATION (const line_map_ordinary *map)
+{
+ return (((map[1].start_location - 1
+ - map->start_location)
+ & ~((1 << map->m_column_and_range_bits) - 1))
+ + map->start_location);
+}
+
/* Add a mapping of logical source line to physical source file and
line number.
if (reason == LC_RENAME_VERBATIM)
reason = LC_RENAME;
+ const line_map_ordinary *from = NULL;
if (reason == LC_LEAVE)
{
/* When we are just leaving an "included" file, and jump to the next
location inside the "includer" right after the #include
"included", this variable points the map in use right before the
#include "included", inside the same "includer" file. */
- line_map_ordinary *from;
linemap_assert (!MAIN_FILE_P (map - 1));
/* (MAP - 1) points to the map we are leaving. The
map from which (MAP - 1) got included should be the map
that comes right before MAP in the same file. */
- from = INCLUDED_FROM (set, map - 1);
+ from = linemap_included_at (set, map - 1);
/* A TO_FILE of NULL is special - we use the natural values. */
if (to_file == NULL)
if (reason == LC_ENTER)
{
- map->included_from =
- set->depth == 0 ? -1 : (int) (LINEMAPS_ORDINARY_USED (set) - 2);
+ if (set->depth == 0)
+ map->included_at = 0;
+ else
+ map->included_at = LAST_SOURCE_LINE_LOCATION (map - 1);
set->depth++;
if (set->trace_includes)
trace_include (set, map);
}
else if (reason == LC_RENAME)
- map->included_from = ORDINARY_MAP_INCLUDER_FILE_INDEX (&map[-1]);
+ map->included_at = INCLUDED_AT (&map[-1]);
else if (reason == LC_LEAVE)
{
set->depth--;
- map->included_from =
- ORDINARY_MAP_INCLUDER_FILE_INDEX (INCLUDED_FROM (set, map - 1));
+ map->included_at = INCLUDED_AT (from);
}
return map;
if (!is_macro)
{
const line_map_ordinary *ord_map = linemap_check_ordinary (map);
- unsigned includer_ix;
- const line_map_ordinary *includer_map;
-
- includer_ix = ORDINARY_MAP_INCLUDER_FILE_INDEX (ord_map);
- includer_map = includer_ix < LINEMAPS_ORDINARY_USED (set)
- ? LINEMAPS_ORDINARY_MAP_AT (set, includer_ix)
- : NULL;
+ const line_map_ordinary *includer_map = linemap_included_at (set, ord_map);
fprintf (stream, "File: %s:%d\n", ORDINARY_MAP_FILE_NAME (ord_map),
ORDINARY_MAP_STARTING_LINE_NUMBER (ord_map));
- fprintf (stream, "Included from: [%d] %s\n", includer_ix,
+ fprintf (stream, "Included from: [%d] %s\n",
+ includer_map ? int (includer_map - set->info_ordinary.maps) : -1,
includer_map ? ORDINARY_MAP_FILE_NAME (includer_map) : "None");
}
else
if (e)
from = "N/A";
else
- from = (INCLUDED_FROM (set, map))
- ? LINEMAP_FILE (INCLUDED_FROM (set, map))
- : "<NULL>";
+ {
+ const line_map_ordinary *from_map = linemap_included_at (set, map);
+ from = from_map ? LINEMAP_FILE (from_map) : "<NULL>";
+ }
}
/* P: path, L: line, C: column, S: in-system-header, M: map address,
projects / thirdparty / gcc.git / commitdiff
