| 1 | /* source.c - Keep track of source files. |
| 2 | |
| 3 | Copyright (C) 2000-2020 Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GNU Binutils. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 3 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program; if not, write to the Free Software |
| 19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA |
| 20 | 02110-1301, USA. */ |
| 21 | \f |
| 22 | #include "gprof.h" |
| 23 | #include "libiberty.h" |
| 24 | #include "filenames.h" |
| 25 | #include "search_list.h" |
| 26 | #include "source.h" |
| 27 | |
| 28 | #define EXT_ANNO "-ann" /* Postfix of annotated files. */ |
| 29 | |
| 30 | /* Default option values. */ |
| 31 | bfd_boolean create_annotation_files = FALSE; |
| 32 | |
| 33 | Search_List src_search_list = {0, 0}; |
| 34 | Source_File *first_src_file = 0; |
| 35 | |
| 36 | |
| 37 | Source_File * |
| 38 | source_file_lookup_path (const char *path) |
| 39 | { |
| 40 | Source_File *sf; |
| 41 | |
| 42 | for (sf = first_src_file; sf; sf = sf->next) |
| 43 | { |
| 44 | if (FILENAME_CMP (path, sf->name) == 0) |
| 45 | break; |
| 46 | } |
| 47 | |
| 48 | if (!sf) |
| 49 | { |
| 50 | /* Create a new source file descriptor. */ |
| 51 | sf = (Source_File *) xmalloc (sizeof (*sf)); |
| 52 | |
| 53 | memset (sf, 0, sizeof (*sf)); |
| 54 | |
| 55 | sf->name = xstrdup (path); |
| 56 | sf->next = first_src_file; |
| 57 | first_src_file = sf; |
| 58 | } |
| 59 | |
| 60 | return sf; |
| 61 | } |
| 62 | |
| 63 | |
| 64 | Source_File * |
| 65 | source_file_lookup_name (const char *filename) |
| 66 | { |
| 67 | const char *fname; |
| 68 | Source_File *sf; |
| 69 | |
| 70 | /* The user cannot know exactly how a filename will be stored in |
| 71 | the debugging info (e.g., ../include/foo.h |
| 72 | vs. /usr/include/foo.h). So we simply compare the filename |
| 73 | component of a path only. */ |
| 74 | for (sf = first_src_file; sf; sf = sf->next) |
| 75 | { |
| 76 | fname = strrchr (sf->name, '/'); |
| 77 | |
| 78 | if (fname) |
| 79 | ++fname; |
| 80 | else |
| 81 | fname = sf->name; |
| 82 | |
| 83 | if (FILENAME_CMP (filename, fname) == 0) |
| 84 | break; |
| 85 | } |
| 86 | |
| 87 | return sf; |
| 88 | } |
| 89 | |
| 90 | |
| 91 | FILE * |
| 92 | annotate_source (Source_File *sf, unsigned int max_width, |
| 93 | void (*annote) (char *, unsigned int, int, void *), |
| 94 | void *arg) |
| 95 | { |
| 96 | static bfd_boolean first_file = TRUE; |
| 97 | int i, line_num, nread; |
| 98 | bfd_boolean new_line; |
| 99 | char buf[8192]; |
| 100 | char fname[PATH_MAX]; |
| 101 | char *annotation, *name_only; |
| 102 | FILE *ifp, *ofp; |
| 103 | Search_List_Elem *sle = src_search_list.head; |
| 104 | |
| 105 | /* Open input file. If open fails, walk along search-list until |
| 106 | open succeeds or reaching end of list. */ |
| 107 | strcpy (fname, sf->name); |
| 108 | |
| 109 | if (IS_ABSOLUTE_PATH (sf->name)) |
| 110 | sle = 0; /* Don't use search list for absolute paths. */ |
| 111 | |
| 112 | name_only = 0; |
| 113 | while (TRUE) |
| 114 | { |
| 115 | DBG (SRCDEBUG, printf ("[annotate_source]: looking for %s, trying %s\n", |
| 116 | sf->name, fname)); |
| 117 | |
| 118 | ifp = fopen (fname, FOPEN_RB); |
| 119 | if (ifp) |
| 120 | break; |
| 121 | |
| 122 | if (!sle && !name_only) |
| 123 | { |
| 124 | name_only = strrchr (sf->name, '/'); |
| 125 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM |
| 126 | { |
| 127 | char *bslash = strrchr (sf->name, '\\'); |
| 128 | if (name_only == NULL || (bslash != NULL && bslash > name_only)) |
| 129 | name_only = bslash; |
| 130 | if (name_only == NULL && sf->name[0] != '\0' && sf->name[1] == ':') |
| 131 | name_only = (char *)sf->name + 1; |
| 132 | } |
| 133 | #endif |
| 134 | if (name_only) |
| 135 | { |
| 136 | /* Try search-list again, but this time with name only. */ |
| 137 | ++name_only; |
| 138 | sle = src_search_list.head; |
| 139 | } |
| 140 | } |
| 141 | |
| 142 | if (sle) |
| 143 | { |
| 144 | strcpy (fname, sle->path); |
| 145 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM |
| 146 | /* d:foo is not the same thing as d:/foo! */ |
| 147 | if (fname[strlen (fname) - 1] == ':') |
| 148 | strcat (fname, "."); |
| 149 | #endif |
| 150 | strcat (fname, "/"); |
| 151 | |
| 152 | if (name_only) |
| 153 | strcat (fname, name_only); |
| 154 | else |
| 155 | strcat (fname, sf->name); |
| 156 | |
| 157 | sle = sle->next; |
| 158 | } |
| 159 | else |
| 160 | { |
| 161 | if (errno == ENOENT) |
| 162 | fprintf (stderr, _("%s: could not locate `%s'\n"), |
| 163 | whoami, sf->name); |
| 164 | else |
| 165 | perror (sf->name); |
| 166 | |
| 167 | return 0; |
| 168 | } |
| 169 | } |
| 170 | |
| 171 | ofp = stdout; |
| 172 | |
| 173 | if (create_annotation_files) |
| 174 | { |
| 175 | /* Try to create annotated source file. */ |
| 176 | const char *filename; |
| 177 | |
| 178 | /* Create annotation files in the current working directory. */ |
| 179 | filename = strrchr (sf->name, '/'); |
| 180 | #ifdef HAVE_DOS_BASED_FILE_SYSTEM |
| 181 | { |
| 182 | char *bslash = strrchr (sf->name, '\\'); |
| 183 | if (filename == NULL || (bslash != NULL && bslash > filename)) |
| 184 | filename = bslash; |
| 185 | if (filename == NULL && sf->name[0] != '\0' && sf->name[1] == ':') |
| 186 | filename = sf->name + 1; |
| 187 | } |
| 188 | #endif |
| 189 | if (filename) |
| 190 | ++filename; |
| 191 | else |
| 192 | filename = sf->name; |
| 193 | |
| 194 | strcpy (fname, filename); |
| 195 | strcat (fname, EXT_ANNO); |
| 196 | #ifdef __MSDOS__ |
| 197 | { |
| 198 | /* foo.cpp-ann can overwrite foo.cpp due to silent truncation of |
| 199 | file names on 8+3 filesystems. Their `stat' better be good... */ |
| 200 | struct stat buf1, buf2; |
| 201 | |
| 202 | if (stat (filename, &buf1) == 0 |
| 203 | && stat (fname, &buf2) == 0 |
| 204 | && buf1.st_ino == buf2.st_ino) |
| 205 | { |
| 206 | char *dot = strrchr (fname, '.'); |
| 207 | |
| 208 | if (dot) |
| 209 | *dot = '\0'; |
| 210 | strcat (fname, ".ann"); |
| 211 | } |
| 212 | } |
| 213 | #endif |
| 214 | ofp = fopen (fname, "w"); |
| 215 | |
| 216 | if (!ofp) |
| 217 | { |
| 218 | perror (fname); |
| 219 | return 0; |
| 220 | } |
| 221 | } |
| 222 | |
| 223 | /* Print file names if output goes to stdout |
| 224 | and there are more than one source file. */ |
| 225 | if (ofp == stdout) |
| 226 | { |
| 227 | if (first_file) |
| 228 | first_file = FALSE; |
| 229 | else |
| 230 | fputc ('\n', ofp); |
| 231 | |
| 232 | if (first_output) |
| 233 | first_output = FALSE; |
| 234 | else |
| 235 | fprintf (ofp, "\f\n"); |
| 236 | |
| 237 | fprintf (ofp, _("*** File %s:\n"), sf->name); |
| 238 | } |
| 239 | |
| 240 | annotation = (char *) xmalloc (max_width + 1); |
| 241 | line_num = 1; |
| 242 | new_line = TRUE; |
| 243 | |
| 244 | while ((nread = fread (buf, 1, sizeof (buf), ifp)) > 0) |
| 245 | { |
| 246 | for (i = 0; i < nread; ++i) |
| 247 | { |
| 248 | if (new_line) |
| 249 | { |
| 250 | (*annote) (annotation, max_width, line_num, arg); |
| 251 | fputs (annotation, ofp); |
| 252 | ++line_num; |
| 253 | } |
| 254 | |
| 255 | new_line = (buf[i] == '\n'); |
| 256 | fputc (buf[i], ofp); |
| 257 | } |
| 258 | } |
| 259 | |
| 260 | free (annotation); |
| 261 | fclose (ifp); |
| 262 | return ofp; |
| 263 | } |