2 * Generate include file dependencies
4 * Copyright 1996 Alexandre Julliard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #define NO_LIBWINE_PORT
23 #include "wine/port.h"
34 /* Max first-level includes per file */
35 #define MAX_INCLUDES 200
37 typedef struct _INCL_FILE
39 struct _INCL_FILE *next;
42 struct _INCL_FILE *included_by; /* file that included this one */
43 int included_line; /* line where this file was included */
44 int system; /* is it a system include (#include <name>) */
45 struct _INCL_FILE *owner;
46 struct _INCL_FILE *files[MAX_INCLUDES];
49 static INCL_FILE *firstSrc;
50 static INCL_FILE *firstInclude;
52 typedef struct _INCL_PATH
54 struct _INCL_PATH *next;
58 static INCL_PATH *firstPath;
60 static const char *SrcDir = NULL;
61 static const char *OutputFileName = "Makefile";
62 static const char *Separator = "### Dependencies";
63 static const char *ProgramName;
65 static const char Usage[] =
66 "Usage: %s [options] [files]\n"
68 " -Idir Search for include files in directory 'dir'\n"
69 " -Cdir Search for source files in directory 'dir'\n"
70 " -fxxx Store output in file 'xxx' (default: Makefile)\n"
71 " -sxxx Use 'xxx' as separator (default: \"### Dependencies\")\n";
74 /*******************************************************************
77 static void fatal_error( const char *msg, ... )
80 va_start( valist, msg );
81 vfprintf( stderr, msg, valist );
87 /*******************************************************************
90 static void *xmalloc( int size )
93 if (!(res = malloc (size ? size : 1)))
94 fatal_error( "%s: Virtual memory exhausted.\n", ProgramName );
99 /*******************************************************************
102 static char *xstrdup( const char *str )
104 char *res = strdup( str );
105 if (!res) fatal_error( "%s: Virtual memory exhausted.\n", ProgramName );
110 /*******************************************************************
113 static char *get_extension( char *filename )
115 char *ext = strrchr( filename, '.' );
116 if (ext && strchr( ext, '/' )) ext = NULL;
121 /*******************************************************************
124 * Test if a given file type is generated during the make process
126 static int is_generated( const char *name )
128 static const char * const extensions[] = { ".tab.h", ".mc.rc" };
129 size_t i, len = strlen(name);
130 for (i = 0; i < sizeof(extensions)/sizeof(extensions[0]); i++)
132 if (len <= strlen(extensions[i])) continue;
133 if (!strcmp( name + len - strlen(extensions[i]), extensions[i] )) return 1;
138 /*******************************************************************
141 * Add a directory to the include path.
143 static void add_include_path( const char *name )
145 INCL_PATH *path = xmalloc( sizeof(*path) );
146 INCL_PATH **p = &firstPath;
147 while (*p) p = &(*p)->next;
154 /*******************************************************************
157 * Add a source file to the list.
159 static INCL_FILE *add_src_file( const char *name )
161 INCL_FILE **p = &firstSrc;
162 INCL_FILE *file = xmalloc( sizeof(*file) );
163 memset( file, 0, sizeof(*file) );
164 file->name = xstrdup(name);
165 while (*p) p = &(*p)->next;
171 /*******************************************************************
174 * Add an include file if it doesn't already exists.
176 static INCL_FILE *add_include( INCL_FILE *pFile, const char *name, int line, int system )
178 INCL_FILE **p = &firstInclude;
182 for (pos = 0; pos < MAX_INCLUDES; pos++) if (!pFile->files[pos]) break;
183 if (pos >= MAX_INCLUDES)
184 fatal_error( "%s: %s: too many included files, please fix MAX_INCLUDES\n",
185 ProgramName, pFile->name );
187 /* enforce some rules for the Wine tree */
189 if (!memcmp( name, "../", 3 ))
190 fatal_error( "%s:%d: #include directive with relative path not allowed\n",
191 pFile->filename, line );
193 if (!strcmp( name, "config.h" ))
195 if ((ext = strrchr( pFile->filename, '.' )) && !strcmp( ext, ".h" ))
196 fatal_error( "%s:%d: config.h must not be included by a header file\n",
197 pFile->filename, line );
199 fatal_error( "%s:%d: config.h must be included before anything else\n",
200 pFile->filename, line );
202 else if (!strcmp( name, "wine/port.h" ))
204 if ((ext = strrchr( pFile->filename, '.' )) && !strcmp( ext, ".h" ))
205 fatal_error( "%s:%d: wine/port.h must not be included by a header file\n",
206 pFile->filename, line );
207 if (!pos) fatal_error( "%s:%d: config.h must be included before wine/port.h\n",
208 pFile->filename, line );
210 fatal_error( "%s:%d: wine/port.h must be included before everything except config.h\n",
211 pFile->filename, line );
212 if (strcmp( pFile->files[0]->name, "config.h" ))
213 fatal_error( "%s:%d: config.h must be included before wine/port.h\n",
214 pFile->filename, line );
217 while (*p && strcmp( name, (*p)->name )) p = &(*p)->next;
220 *p = xmalloc( sizeof(INCL_FILE) );
221 memset( *p, 0, sizeof(INCL_FILE) );
222 (*p)->name = xstrdup(name);
223 (*p)->included_by = pFile;
224 (*p)->included_line = line;
225 (*p)->system = system || pFile->system;
227 pFile->files[pos] = *p;
232 /*******************************************************************
235 static FILE *open_src_file( INCL_FILE *pFile )
239 /* first try name as is */
240 if ((file = fopen( pFile->name, "r" )))
242 pFile->filename = xstrdup( pFile->name );
245 /* now try in source dir */
248 pFile->filename = xmalloc( strlen(SrcDir) + strlen(pFile->name) + 2 );
249 strcpy( pFile->filename, SrcDir );
250 strcat( pFile->filename, "/" );
251 strcat( pFile->filename, pFile->name );
252 file = fopen( pFile->filename, "r" );
256 perror( pFile->name );
263 /*******************************************************************
266 static FILE *open_include_file( INCL_FILE *pFile )
271 for (path = firstPath; path; path = path->next)
273 char *filename = xmalloc(strlen(path->name) + strlen(pFile->name) + 2);
274 strcpy( filename, path->name );
275 strcat( filename, "/" );
276 strcat( filename, pFile->name );
277 if ((file = fopen( filename, "r" )))
279 pFile->filename = filename;
284 if (!file && pFile->system) return NULL; /* ignore system files we cannot find */
286 /* try in src file directory */
289 char *p = strrchr(pFile->included_by->filename, '/');
292 int l = p - pFile->included_by->filename + 1;
293 char *filename = xmalloc(l + strlen(pFile->name) + 1);
294 memcpy( filename, pFile->included_by->filename, l );
295 strcpy( filename + l, pFile->name );
296 if ((file = fopen( filename, "r" ))) pFile->filename = filename;
297 else free( filename );
303 if (pFile->included_by->system) return NULL; /* ignore if included by a system file */
304 if (firstPath) perror( pFile->name );
305 else fprintf( stderr, "%s: %s: File not found\n",
306 ProgramName, pFile->name );
307 while (pFile->included_by)
309 fprintf( stderr, " %s was first included from %s:%d\n",
310 pFile->name, pFile->included_by->name, pFile->included_line );
311 pFile = pFile->included_by;
319 /*******************************************************************
322 static void parse_idl_file( INCL_FILE *pFile, FILE *file )
328 while (fgets( buffer, sizeof(buffer)-1, file ))
333 while (*p && isspace(*p)) p++;
335 if (!strncmp( p, "import", 6 ))
338 while (*p && isspace(*p)) p++;
339 if (*p != '\"') continue;
343 if (*p++ != '#') continue;
344 while (*p && isspace(*p)) p++;
345 if (strncmp( p, "include", 7 )) continue;
347 while (*p && isspace(*p)) p++;
348 if (*p != '\"' && *p != '<' ) continue;
352 if (quote == '<') quote = '>';
354 while (*p && (*p != quote)) p++;
355 if (!*p) fatal_error( "%s:%d: Malformed #include or import directive\n",
356 pFile->filename, line );
358 add_include( pFile, include, line, (quote == '>') );
362 /*******************************************************************
365 static void parse_c_file( INCL_FILE *pFile, FILE *file )
371 while (fgets( buffer, sizeof(buffer)-1, file ))
376 while (*p && isspace(*p)) p++;
377 if (*p++ != '#') continue;
378 while (*p && isspace(*p)) p++;
379 if (strncmp( p, "include", 7 )) continue;
381 while (*p && isspace(*p)) p++;
382 if (*p != '\"' && *p != '<' ) continue;
384 if (quote == '<') quote = '>';
386 while (*p && (*p != quote)) p++;
387 if (!*p) fatal_error( "%s:%d: Malformed #include directive\n",
388 pFile->filename, line );
390 add_include( pFile, include, line, (quote == '>') );
395 /*******************************************************************
398 static void parse_file( INCL_FILE *pFile, int src )
403 if (is_generated( pFile->name ))
405 /* file is generated during make, don't try to open it */
406 pFile->filename = xstrdup( pFile->name );
410 file = src ? open_src_file( pFile ) : open_include_file( pFile );
412 ext = get_extension( pFile->name );
413 if (ext && !strcmp( ext, ".idl" )) parse_idl_file( pFile, file );
414 else parse_c_file( pFile, file );
419 /*******************************************************************
422 static void output_include( FILE *file, INCL_FILE *pFile,
423 INCL_FILE *owner, int *column )
427 if (pFile->owner == owner) return;
428 if (!pFile->filename) return;
429 pFile->owner = owner;
430 if (*column + strlen(pFile->filename) + 1 > 70)
432 fprintf( file, " \\\n" );
435 fprintf( file, " %s", pFile->filename );
436 *column += strlen(pFile->filename) + 1;
437 for (i = 0; i < MAX_INCLUDES; i++)
438 if (pFile->files[i]) output_include( file, pFile->files[i],
443 /*******************************************************************
446 static void output_src( FILE *file, INCL_FILE *pFile, int *column )
448 char *obj = xstrdup( pFile->name );
449 char *ext = get_extension( obj );
453 if (!strcmp( ext, "y" )) /* yacc file */
455 *column += fprintf( file, "y.tab.o: y.tab.c" );
457 else if (!strcmp( ext, "l" )) /* lex file */
459 *column += fprintf( file, "%s.o: %s.c", LEX_OUTPUT_ROOT, LEX_OUTPUT_ROOT );
461 else if (!strcmp( ext, "rc" )) /* resource file */
463 *column += fprintf( file, "%s.res: %s", obj, pFile->filename );
465 else if (!strcmp( ext, "mc" )) /* message file */
467 *column += fprintf( file, "%s.mc.rc: %s", obj, pFile->filename );
469 else if (!strcmp( ext, "idl" )) /* IDL file */
471 *column += fprintf( file, "%s.h: %s", obj, pFile->filename );
475 *column += fprintf( file, "%s.o: %s", obj, pFile->filename );
482 /*******************************************************************
483 * output_dependencies
485 static void output_dependencies(void)
492 if (Separator && ((file = fopen( OutputFileName, "r+" ))))
494 while (fgets( buffer, sizeof(buffer), file ))
495 if (!strncmp( buffer, Separator, strlen(Separator) )) break;
496 ftruncate( fileno(file), ftell(file) );
497 fseek( file, 0L, SEEK_END );
501 if (!(file = fopen( OutputFileName, Separator ? "a" : "w" )))
503 perror( OutputFileName );
507 for( pFile = firstSrc; pFile; pFile = pFile->next)
510 output_src( file, pFile, &column );
511 for (i = 0; i < MAX_INCLUDES; i++)
512 if (pFile->files[i]) output_include( file, pFile->files[i],
514 fprintf( file, "\n" );
520 /*******************************************************************
523 static void parse_option( const char *opt )
528 if (opt[2]) add_include_path( opt + 2 );
531 if (opt[2]) SrcDir = opt + 2;
535 if (opt[2]) OutputFileName = opt + 2;
538 if (opt[2]) Separator = opt + 2;
539 else Separator = NULL;
542 fprintf( stderr, "Unknown option '%s'\n", opt );
543 fprintf( stderr, Usage, ProgramName );
549 /*******************************************************************
552 int main( int argc, char *argv[] )
556 ProgramName = argv[0];
559 if (*argv[1] == '-') parse_option( argv[1] );
562 pFile = add_src_file( argv[1] );
563 parse_file( pFile, 1 );
568 for (pFile = firstInclude; pFile; pFile = pFile->next)
569 parse_file( pFile, 0 );
570 if( firstSrc ) output_dependencies();