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annotate place.c @ 154:a2c2fe8dbea3
Wrap up the current and next line position when invoking directives.
(in preparation for implementing #line)
| author | David A. Holland |
|---|---|
| date | Fri, 12 Jun 2015 00:56:12 -0400 |
| parents | 26ee741196d1 |
| children | 95fbb216e23f |
| rev | line source |
|---|---|
| 30 | 1 /*- |
| 2 * Copyright (c) 2010 The NetBSD Foundation, Inc. | |
| 3 * All rights reserved. | |
| 4 * | |
| 5 * This code is derived from software contributed to The NetBSD Foundation | |
| 6 * by David A. Holland. | |
| 7 * | |
| 8 * Redistribution and use in source and binary forms, with or without | |
| 9 * modification, are permitted provided that the following conditions | |
| 10 * are met: | |
| 11 * 1. Redistributions of source code must retain the above copyright | |
| 12 * notice, this list of conditions and the following disclaimer. | |
| 13 * 2. Redistributions in binary form must reproduce the above copyright | |
| 14 * notice, this list of conditions and the following disclaimer in the | |
| 15 * documentation and/or other materials provided with the distribution. | |
| 16 * | |
| 17 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS | |
| 18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED | |
| 19 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS | |
| 21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| 22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
| 24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
| 25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
| 27 * POSSIBILITY OF SUCH DAMAGE. | |
| 28 */ | |
| 29 | |
| 8 | 30 #include <assert.h> |
| 31 #include <stdarg.h> | |
| 32 #include <stdio.h> | |
| 33 #include <stdlib.h> | |
| 112 | 34 #include <string.h> |
| 8 | 35 |
| 36 #include "utils.h" | |
| 10 | 37 #include "array.h" |
| 8 | 38 #include "place.h" |
| 39 | |
| 13 | 40 struct placefile { |
| 10 | 41 struct place includedfrom; |
| 112 | 42 char *dir; |
| 10 | 43 char *name; |
| 28 | 44 int depth; |
| 10 | 45 bool fromsystemdir; |
| 46 }; | |
| 107 | 47 DECLARRAY(placefile, static UNUSED); |
|
47
2e25e55dba6b
Fix inline usage as per the version in dholland-make2.
David A. Holland
parents:
39
diff
changeset
|
48 DEFARRAY(placefile, static); |
| 10 | 49 |
| 13 | 50 static struct placefilearray placefiles; |
| 10 | 51 static bool overall_failure; |
| 52 | |
| 142 | 53 static const char *myprogname; |
| 54 | |
| 10 | 55 //////////////////////////////////////////////////////////// |
| 56 // seenfiles | |
| 57 | |
| 58 static | |
| 13 | 59 struct placefile * |
| 60 placefile_create(const struct place *from, const char *name, | |
| 61 bool fromsystemdir) | |
| 10 | 62 { |
| 13 | 63 struct placefile *pf; |
| 112 | 64 const char *s; |
| 65 size_t len; | |
| 10 | 66 |
| 13 | 67 pf = domalloc(sizeof(*pf)); |
| 68 pf->includedfrom = *from; | |
| 112 | 69 |
| 70 s = strrchr(name, '/'); | |
| 71 len = (s == NULL) ? 0 : s - name; | |
| 72 pf->dir = dostrndup(name, len); | |
| 73 | |
| 13 | 74 pf->name = dostrdup(name); |
| 75 pf->fromsystemdir = fromsystemdir; | |
| 112 | 76 |
| 28 | 77 if (from->file != NULL) { |
| 78 pf->depth = from->file->depth + 1; | |
| 79 } else { | |
| 80 pf->depth = 1; | |
| 81 } | |
| 13 | 82 return pf; |
| 10 | 83 } |
| 84 | |
| 85 static | |
| 86 void | |
| 13 | 87 placefile_destroy(struct placefile *pf) |
| 10 | 88 { |
|
39
337110e7240a
Pass the size to free; it makes debug checking easier.
David A. Holland
parents:
38
diff
changeset
|
89 dostrfree(pf->name); |
|
337110e7240a
Pass the size to free; it makes debug checking easier.
David A. Holland
parents:
38
diff
changeset
|
90 dofree(pf, sizeof(*pf)); |
| 10 | 91 } |
| 92 | |
| 13 | 93 DESTROYALL_ARRAY(placefile, ); |
| 10 | 94 |
| 112 | 95 const char * |
| 96 place_getparsedir(const struct place *place) | |
| 97 { | |
| 98 if (place->file == NULL) { | |
| 99 return "."; | |
| 100 } | |
| 101 return place->file->dir; | |
| 102 } | |
| 103 | |
| 13 | 104 const struct placefile * |
| 105 place_addfile(const struct place *place, const char *file, bool issystem) | |
| 10 | 106 { |
| 13 | 107 struct placefile *pf; |
| 10 | 108 |
| 13 | 109 pf = placefile_create(place, file, issystem); |
| 110 placefilearray_add(&placefiles, pf, NULL); | |
|
114
05d67dd74e1f
Reduce the maximum include depth from 128 to 120.
David A. Holland
parents:
112
diff
changeset
|
111 if (pf->depth > 120) { |
| 28 | 112 complain(place, "Maximum include nesting depth exceeded"); |
| 113 die(); | |
| 114 } | |
| 13 | 115 return pf; |
| 10 | 116 } |
| 117 | |
| 118 //////////////////////////////////////////////////////////// | |
| 119 // places | |
| 120 | |
| 8 | 121 void |
| 122 place_setnowhere(struct place *p) | |
| 123 { | |
| 12 | 124 p->type = P_NOWHERE; |
| 8 | 125 p->file = NULL; |
| 12 | 126 p->line = 0; |
| 8 | 127 p->column = 0; |
| 128 } | |
| 129 | |
| 130 void | |
| 131 place_setbuiltin(struct place *p, unsigned num) | |
| 132 { | |
| 12 | 133 p->type = P_BUILTIN; |
| 8 | 134 p->file = NULL; |
| 12 | 135 p->line = num; |
| 136 p->column = 1; | |
| 8 | 137 } |
| 138 | |
| 139 void | |
| 14 | 140 place_setcommandline(struct place *p, unsigned line, unsigned column) |
| 8 | 141 { |
| 14 | 142 p->type = P_COMMANDLINE; |
| 8 | 143 p->file = NULL; |
| 14 | 144 p->line = line; |
| 8 | 145 p->column = column; |
| 146 } | |
| 147 | |
| 14 | 148 void |
| 149 place_setfilestart(struct place *p, const struct placefile *pf) | |
| 150 { | |
| 28 | 151 p->type = P_FILE; |
| 14 | 152 p->file = pf; |
| 153 p->line = 1; | |
| 154 p->column = 1; | |
| 155 } | |
| 156 | |
| 8 | 157 static |
| 12 | 158 const char * |
| 159 place_getname(const struct place *p) | |
| 8 | 160 { |
| 12 | 161 switch (p->type) { |
| 162 case P_NOWHERE: return "<nowhere>"; | |
| 163 case P_BUILTIN: return "<built-in>"; | |
| 164 case P_COMMANDLINE: return "<command-line>"; | |
| 165 case P_FILE: return p->file->name; | |
| 8 | 166 } |
| 12 | 167 assert(0); |
| 168 return NULL; | |
| 8 | 169 } |
| 170 | |
| 171 static | |
| 172 void | |
| 173 place_printfrom(const struct place *p) | |
| 174 { | |
| 175 const struct place *from; | |
| 176 | |
|
95
1c0575f7dd46
Don't crash printing the commandline place.
David A. Holland
parents:
47
diff
changeset
|
177 if (p->file == NULL) { |
|
1c0575f7dd46
Don't crash printing the commandline place.
David A. Holland
parents:
47
diff
changeset
|
178 return; |
|
1c0575f7dd46
Don't crash printing the commandline place.
David A. Holland
parents:
47
diff
changeset
|
179 } |
| 10 | 180 from = &p->file->includedfrom; |
| 12 | 181 if (from->type != P_NOWHERE) { |
| 8 | 182 place_printfrom(from); |
| 12 | 183 fprintf(stderr, "In file included from %s:%u:%u:\n", |
| 184 place_getname(from), from->line, from->column); | |
| 8 | 185 } |
| 186 } | |
| 187 | |
| 10 | 188 //////////////////////////////////////////////////////////// |
| 189 // complaints | |
| 190 | |
| 8 | 191 void |
| 142 | 192 complain_init(const char *pn) |
| 193 { | |
| 194 myprogname = pn; | |
| 195 } | |
| 196 | |
| 197 void | |
| 8 | 198 complain(const struct place *p, const char *fmt, ...) |
| 199 { | |
| 200 va_list ap; | |
| 201 | |
| 142 | 202 if (p != NULL) { |
| 203 place_printfrom(p); | |
| 204 fprintf(stderr, "%s:%u:%u: ", place_getname(p), | |
| 205 p->line, p->column); | |
| 206 } else { | |
| 207 fprintf(stderr, "%s: ", myprogname); | |
| 208 } | |
| 8 | 209 va_start(ap, fmt); |
| 210 vfprintf(stderr, fmt, ap); | |
| 211 va_end(ap); | |
| 212 fprintf(stderr, "\n"); | |
| 213 } | |
| 214 | |
| 215 void | |
| 216 complain_fail(void) | |
| 217 { | |
| 218 overall_failure = true; | |
| 219 } | |
| 220 | |
| 221 bool | |
| 222 complain_failed(void) | |
| 223 { | |
| 224 return overall_failure; | |
| 225 } | |
| 226 | |
| 10 | 227 //////////////////////////////////////////////////////////// |
| 228 // module init and cleanup | |
| 229 | |
| 230 void | |
| 231 place_init(void) | |
| 232 { | |
| 13 | 233 placefilearray_init(&placefiles); |
| 10 | 234 } |
| 235 | |
| 236 void | |
| 237 place_cleanup(void) | |
| 238 { | |
| 13 | 239 placefilearray_destroyall(&placefiles); |
| 240 placefilearray_cleanup(&placefiles); | |
| 10 | 241 } |