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Diffstat (limited to 'contrib/gcc/line-map.c')
| -rw-r--r-- | contrib/gcc/line-map.c | 237 |
1 files changed, 0 insertions, 237 deletions
diff --git a/contrib/gcc/line-map.c b/contrib/gcc/line-map.c deleted file mode 100644 index 521c4e5..0000000 --- a/contrib/gcc/line-map.c +++ /dev/null @@ -1,237 +0,0 @@ -/* Map logical line numbers to (source file, line number) pairs. - Copyright (C) 2001, 2003 - Free Software Foundation, Inc. - -This program is free software; you can redistribute it and/or modify it -under the terms of the GNU General Public License as published by the -Free Software Foundation; either version 2, or (at your option) any -later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - - In other words, you are welcome to use, share and improve this program. - You are forbidden to forbid anyone else to use, share and improve - what you give them. Help stamp out software-hoarding! */ - -#include "config.h" -#include "system.h" -#include "line-map.h" -#include "intl.h" - -static void trace_include (const struct line_maps *, const struct line_map *); - -/* Initialize a line map set. */ - -void -linemap_init (struct line_maps *set) -{ - set->maps = 0; - set->allocated = 0; - set->used = 0; - set->last_listed = -1; - set->trace_includes = false; - set->depth = 0; -} - -/* Free a line map set. */ - -void -linemap_free (struct line_maps *set) -{ - if (set->maps) - { - struct line_map *map; - - /* Depending upon whether we are handling preprocessed input or - not, this can be a user error or an ICE. */ - for (map = CURRENT_LINE_MAP (set); ! MAIN_FILE_P (map); - map = INCLUDED_FROM (set, map)) - fprintf (stderr, "line-map.c: file \"%s\" entered but not left\n", - map->to_file); - - free (set->maps); - } -} - -/* Add a mapping of logical source line to physical source file and - line number. - - The text pointed to by TO_FILE must have a lifetime - at least as long as the final call to lookup_line (). An empty - TO_FILE means standard input. If reason is LC_LEAVE, and - TO_FILE is NULL, then TO_FILE, TO_LINE and SYSP are given their - natural values considering the file we are returning to. - - FROM_LINE should be monotonic increasing across calls to this - function. A call to this function can relocate the previous set of - maps, so any stored line_map pointers should not be used. */ - -const struct line_map * -linemap_add (struct line_maps *set, enum lc_reason reason, - unsigned int sysp, source_location from_line, - const char *to_file, unsigned int to_line) -{ - struct line_map *map; - - if (set->used && from_line < set->maps[set->used - 1].from_line) - abort (); - - if (set->used == set->allocated) - { - set->allocated = 2 * set->allocated + 256; - set->maps = xrealloc (set->maps, set->allocated * sizeof (struct line_map)); - } - - map = &set->maps[set->used++]; - - if (to_file && *to_file == '\0') - to_file = "<stdin>"; - - /* If we don't keep our line maps consistent, we can easily - segfault. Don't rely on the client to do it for us. */ - if (set->depth == 0) - reason = LC_ENTER; - else if (reason == LC_LEAVE) - { - struct line_map *from; - bool error; - - if (MAIN_FILE_P (map - 1)) - { - if (to_file == NULL) - { - set->depth--; - set->used--; - return NULL; - } - error = true; - reason = LC_RENAME; - from = map - 1; - } - else - { - from = INCLUDED_FROM (set, map - 1); - error = to_file && strcmp (from->to_file, to_file); - } - - /* Depending upon whether we are handling preprocessed input or - not, this can be a user error or an ICE. */ - if (error) - fprintf (stderr, "line-map.c: file \"%s\" left but not entered\n", - to_file); - - /* A TO_FILE of NULL is special - we use the natural values. */ - if (error || to_file == NULL) - { - to_file = from->to_file; - to_line = LAST_SOURCE_LINE (from) + 1; - sysp = from->sysp; - } - } - - map->reason = reason; - map->sysp = sysp; - map->from_line = from_line; - map->to_file = to_file; - map->to_line = to_line; - - if (reason == LC_ENTER) - { - map->included_from = set->depth == 0 ? -1 : (int) (set->used - 2); - set->depth++; - if (set->trace_includes) - trace_include (set, map); - } - else if (reason == LC_RENAME) - map->included_from = map[-1].included_from; - else if (reason == LC_LEAVE) - { - set->depth--; - map->included_from = INCLUDED_FROM (set, map - 1)->included_from; - } - - return map; -} - -/* Given a logical line, returns the map from which the corresponding - (source file, line) pair can be deduced. Since the set is built - chronologically, the logical lines are monotonic increasing, and so - the list is sorted and we can use a binary search. */ - -const struct line_map * -linemap_lookup (struct line_maps *set, source_location line) -{ - unsigned int md, mn = 0, mx = set->used; - - if (mx == 0) - abort (); - - while (mx - mn > 1) - { - md = (mn + mx) / 2; - if (set->maps[md].from_line > line) - mx = md; - else - mn = md; - } - - return &set->maps[mn]; -} - -/* Print the file names and line numbers of the #include commands - which led to the map MAP, if any, to stderr. Nothing is output if - the most recently listed stack is the same as the current one. */ - -void -linemap_print_containing_files (struct line_maps *set, - const struct line_map *map) -{ - if (MAIN_FILE_P (map) || set->last_listed == map->included_from) - return; - - set->last_listed = map->included_from; - map = INCLUDED_FROM (set, map); - - fprintf (stderr, _("In file included from %s:%u"), - map->to_file, LAST_SOURCE_LINE (map)); - - while (! MAIN_FILE_P (map)) - { - map = INCLUDED_FROM (set, map); - /* Translators note: this message is used in conjunction - with "In file included from %s:%ld" and some other - tricks. We want something like this: - - | In file included from sys/select.h:123, - | from sys/types.h:234, - | from userfile.c:31: - | bits/select.h:45: <error message here> - - with all the "from"s lined up. - The trailing comma is at the beginning of this message, - and the trailing colon is not translated. */ - fprintf (stderr, _(",\n from %s:%u"), - map->to_file, LAST_SOURCE_LINE (map)); - } - - fputs (":\n", stderr); -} - -/* Print an include trace, for e.g. the -H option of the preprocessor. */ - -static void -trace_include (const struct line_maps *set, const struct line_map *map) -{ - unsigned int i = set->depth; - - while (--i) - putc ('.', stderr); - fprintf (stderr, " %s\n", map->to_file); -} |
