| 1 | /* |
| 2 | * Keeps track of source files. |
| 3 | */ |
| 4 | #include "gprof.h" |
| 5 | #include "libiberty.h" |
| 6 | #include "search_list.h" |
| 7 | #include "source.h" |
| 8 | |
| 9 | #define EXT_ANNO "-ann" /* postfix of annotated files */ |
| 10 | |
| 11 | /* |
| 12 | * Default option values: |
| 13 | */ |
| 14 | bool create_annotation_files = FALSE; |
| 15 | |
| 16 | Search_List src_search_list = |
| 17 | {0, 0}; |
| 18 | Source_File *first_src_file = 0; |
| 19 | |
| 20 | |
| 21 | Source_File * |
| 22 | DEFUN (source_file_lookup_path, (path), const char *path) |
| 23 | { |
| 24 | Source_File *sf; |
| 25 | |
| 26 | for (sf = first_src_file; sf; sf = sf->next) |
| 27 | { |
| 28 | if (strcmp (path, sf->name) == 0) |
| 29 | { |
| 30 | break; |
| 31 | } |
| 32 | } |
| 33 | if (!sf) |
| 34 | { |
| 35 | /* create a new source file descriptor: */ |
| 36 | |
| 37 | sf = (Source_File *) xmalloc (sizeof (*sf)); |
| 38 | memset (sf, 0, sizeof (*sf)); |
| 39 | sf->name = xstrdup (path); |
| 40 | sf->next = first_src_file; |
| 41 | first_src_file = sf; |
| 42 | } |
| 43 | return sf; |
| 44 | } |
| 45 | |
| 46 | |
| 47 | Source_File * |
| 48 | DEFUN (source_file_lookup_name, (filename), const char *filename) |
| 49 | { |
| 50 | const char *fname; |
| 51 | Source_File *sf; |
| 52 | /* |
| 53 | * The user cannot know exactly how a filename will be stored in |
| 54 | * the debugging info (e.g., ../include/foo.h |
| 55 | * vs. /usr/include/foo.h). So we simply compare the filename |
| 56 | * component of a path only: |
| 57 | */ |
| 58 | for (sf = first_src_file; sf; sf = sf->next) |
| 59 | { |
| 60 | fname = strrchr (sf->name, '/'); |
| 61 | if (fname) |
| 62 | { |
| 63 | ++fname; |
| 64 | } |
| 65 | else |
| 66 | { |
| 67 | fname = sf->name; |
| 68 | } |
| 69 | if (strcmp (filename, fname) == 0) |
| 70 | { |
| 71 | break; |
| 72 | } |
| 73 | } |
| 74 | return sf; |
| 75 | } |
| 76 | |
| 77 | |
| 78 | FILE * |
| 79 | DEFUN (annotate_source, (sf, max_width, annote, arg), |
| 80 | Source_File * sf AND int max_width |
| 81 | AND void (*annote) PARAMS ((char *buf, int w, int l, void *arg)) |
| 82 | AND void *arg) |
| 83 | { |
| 84 | static bool first_file = TRUE; |
| 85 | int i, line_num, nread; |
| 86 | bool new_line; |
| 87 | char buf[8192]; |
| 88 | char fname[PATH_MAX]; |
| 89 | char *annotation, *name_only; |
| 90 | FILE *ifp, *ofp; |
| 91 | Search_List_Elem *sle = src_search_list.head; |
| 92 | |
| 93 | /* |
| 94 | * Open input file. If open fails, walk along search-list until |
| 95 | * open succeeds or reaching end of list: |
| 96 | */ |
| 97 | strcpy (fname, sf->name); |
| 98 | if (sf->name[0] == '/') |
| 99 | { |
| 100 | sle = 0; /* don't use search list for absolute paths */ |
| 101 | } |
| 102 | name_only = 0; |
| 103 | while (TRUE) |
| 104 | { |
| 105 | DBG (SRCDEBUG, printf ("[annotate_source]: looking for %s, trying %s\n", |
| 106 | sf->name, fname)); |
| 107 | ifp = fopen (fname, FOPEN_RB); |
| 108 | if (ifp) |
| 109 | { |
| 110 | break; |
| 111 | } |
| 112 | if (!sle && !name_only) |
| 113 | { |
| 114 | name_only = strrchr (sf->name, '/'); |
| 115 | if (name_only) |
| 116 | { |
| 117 | /* try search-list again, but this time with name only: */ |
| 118 | ++name_only; |
| 119 | sle = src_search_list.head; |
| 120 | } |
| 121 | } |
| 122 | if (sle) |
| 123 | { |
| 124 | strcpy (fname, sle->path); |
| 125 | strcat (fname, "/"); |
| 126 | if (name_only) |
| 127 | { |
| 128 | strcat (fname, name_only); |
| 129 | } |
| 130 | else |
| 131 | { |
| 132 | strcat (fname, sf->name); |
| 133 | } |
| 134 | sle = sle->next; |
| 135 | } |
| 136 | else |
| 137 | { |
| 138 | if (errno == ENOENT) |
| 139 | { |
| 140 | fprintf (stderr, _("%s: could not locate `%s'\n"), |
| 141 | whoami, sf->name); |
| 142 | } |
| 143 | else |
| 144 | { |
| 145 | perror (sf->name); |
| 146 | } |
| 147 | return 0; |
| 148 | } |
| 149 | } |
| 150 | |
| 151 | ofp = stdout; |
| 152 | if (create_annotation_files) |
| 153 | { |
| 154 | /* try to create annotated source file: */ |
| 155 | const char *filename; |
| 156 | |
| 157 | /* create annotation files in the current working directory: */ |
| 158 | filename = strrchr (sf->name, '/'); |
| 159 | if (filename) |
| 160 | { |
| 161 | ++filename; |
| 162 | } |
| 163 | else |
| 164 | { |
| 165 | filename = sf->name; |
| 166 | } |
| 167 | |
| 168 | strcpy (fname, filename); |
| 169 | strcat (fname, EXT_ANNO); |
| 170 | ofp = fopen (fname, "w"); |
| 171 | if (!ofp) |
| 172 | { |
| 173 | perror (fname); |
| 174 | return 0; |
| 175 | } |
| 176 | } |
| 177 | |
| 178 | /* |
| 179 | * Print file names if output goes to stdout and there are |
| 180 | * more than one source file: |
| 181 | */ |
| 182 | if (ofp == stdout) |
| 183 | { |
| 184 | if (first_file) |
| 185 | { |
| 186 | first_file = FALSE; |
| 187 | } |
| 188 | else |
| 189 | { |
| 190 | fputc ('\n', ofp); |
| 191 | } |
| 192 | if (first_output) |
| 193 | { |
| 194 | first_output = FALSE; |
| 195 | } |
| 196 | else |
| 197 | { |
| 198 | fprintf (ofp, "\f\n"); |
| 199 | } |
| 200 | fprintf (ofp, _("*** File %s:\n"), sf->name); |
| 201 | } |
| 202 | |
| 203 | annotation = xmalloc (max_width + 1); |
| 204 | line_num = 1; |
| 205 | new_line = TRUE; |
| 206 | while ((nread = fread (buf, 1, sizeof (buf), ifp)) > 0) |
| 207 | { |
| 208 | for (i = 0; i < nread; ++i) |
| 209 | { |
| 210 | if (new_line) |
| 211 | { |
| 212 | (*annote) (annotation, max_width, line_num, arg); |
| 213 | fputs (annotation, ofp); |
| 214 | ++line_num; |
| 215 | new_line = FALSE; |
| 216 | } |
| 217 | new_line = (buf[i] == '\n'); |
| 218 | fputc (buf[i], ofp); |
| 219 | } |
| 220 | } |
| 221 | free (annotation); |
| 222 | return ofp; |
| 223 | } |