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 #include "wine/port.h"
32 /* Max first-level includes per file */
33 #define MAX_INCLUDES 200
35 typedef struct _INCL_FILE
37 struct _INCL_FILE *next;
40 struct _INCL_FILE *included_by; /* file that included this one */
41 int included_line; /* line where this file was included */
42 int system; /* is it a system include (#include <name>) */
43 struct _INCL_FILE *owner;
44 struct _INCL_FILE *files[MAX_INCLUDES];
47 static INCL_FILE *firstSrc;
48 static INCL_FILE *firstInclude;
50 typedef struct _INCL_PATH
52 struct _INCL_PATH *next;
56 static INCL_PATH *firstPath;
58 static const char *SrcDir = NULL;
59 static const char *OutputFileName = "Makefile";
60 static const char *Separator = "### Dependencies";
61 static const char *ProgramName;
63 static const char Usage[] =
64 "Usage: %s [options] [files]\n"
66 " -Idir Search for include files in directory 'dir'\n"
67 " -Cdir Search for source files in directory 'dir'\n"
68 " -fxxx Store output in file 'xxx' (default: Makefile)\n"
69 " -sxxx Use 'xxx' as separator (default: \"### Dependencies\")\n";
72 /*******************************************************************
75 static void *xmalloc( int size )
78 if (!(res = malloc (size ? size : 1)))
80 fprintf( stderr, "%s: Virtual memory exhausted.\n", ProgramName );
87 /*******************************************************************
90 static char *xstrdup( const char *str )
92 char *res = strdup( str );
95 fprintf( stderr, "%s: Virtual memory exhausted.\n", ProgramName );
102 /*******************************************************************
105 * Test if a given file type is generated during the make process
107 static int is_generated( const char *name )
109 static const char * const extensions[] = { ".tab.h", ".mc.rc" };
110 size_t i, len = strlen(name);
111 for (i = 0; i < sizeof(extensions)/sizeof(extensions[0]); i++)
113 if (len <= strlen(extensions[i])) continue;
114 if (!strcmp( name + len - strlen(extensions[i]), extensions[i] )) return 1;
119 /*******************************************************************
122 * Add a directory to the include path.
124 static void add_include_path( const char *name )
126 INCL_PATH *path = xmalloc( sizeof(*path) );
127 INCL_PATH **p = &firstPath;
128 while (*p) p = &(*p)->next;
135 /*******************************************************************
138 * Add a source file to the list.
140 static INCL_FILE *add_src_file( const char *name )
142 INCL_FILE **p = &firstSrc;
143 INCL_FILE *file = xmalloc( sizeof(*file) );
144 memset( file, 0, sizeof(*file) );
145 file->name = xstrdup(name);
146 while (*p) p = &(*p)->next;
152 /*******************************************************************
155 * Add an include file if it doesn't already exists.
157 static INCL_FILE *add_include( INCL_FILE *pFile, const char *name, int line, int system )
159 INCL_FILE **p = &firstInclude;
162 for (pos = 0; pos < MAX_INCLUDES; pos++) if (!pFile->files[pos]) break;
163 if (pos >= MAX_INCLUDES)
165 fprintf( stderr, "%s: %s: too many included files, please fix MAX_INCLUDES\n",
166 ProgramName, pFile->name );
170 while (*p && strcmp( name, (*p)->name )) p = &(*p)->next;
173 *p = xmalloc( sizeof(INCL_FILE) );
174 memset( *p, 0, sizeof(INCL_FILE) );
175 (*p)->name = xstrdup(name);
176 (*p)->included_by = pFile;
177 (*p)->included_line = line;
178 (*p)->system = system || pFile->system;
180 pFile->files[pos] = *p;
185 /*******************************************************************
188 static FILE *open_src_file( INCL_FILE *pFile )
192 /* first try name as is */
193 if ((file = fopen( pFile->name, "r" )))
195 pFile->filename = xstrdup( pFile->name );
198 /* now try in source dir */
201 pFile->filename = xmalloc( strlen(SrcDir) + strlen(pFile->name) + 2 );
202 strcpy( pFile->filename, SrcDir );
203 strcat( pFile->filename, "/" );
204 strcat( pFile->filename, pFile->name );
205 file = fopen( pFile->filename, "r" );
209 perror( pFile->name );
216 /*******************************************************************
219 static FILE *open_include_file( INCL_FILE *pFile )
224 for (path = firstPath; path; path = path->next)
226 char *filename = xmalloc(strlen(path->name) + strlen(pFile->name) + 2);
227 strcpy( filename, path->name );
228 strcat( filename, "/" );
229 strcat( filename, pFile->name );
230 if ((file = fopen( filename, "r" )))
232 pFile->filename = filename;
237 if (!file && pFile->system) return NULL; /* ignore system files we cannot find */
239 /* try in src file directory */
242 char *p = strrchr(pFile->included_by->filename, '/');
245 int l = p - pFile->included_by->filename + 1;
246 char *filename = xmalloc(l + strlen(pFile->name) + 1);
247 memcpy( filename, pFile->included_by->filename, l );
248 strcpy( filename + l, pFile->name );
249 if ((file = fopen( filename, "r" ))) pFile->filename = filename;
250 else free( filename );
256 if (pFile->included_by->system) return NULL; /* ignore if included by a system file */
257 if (firstPath) perror( pFile->name );
258 else fprintf( stderr, "%s: %s: File not found\n",
259 ProgramName, pFile->name );
260 while (pFile->included_by)
262 fprintf( stderr, " %s was first included from %s:%d\n",
263 pFile->name, pFile->included_by->name, pFile->included_line );
264 pFile = pFile->included_by;
272 /*******************************************************************
275 static void parse_file( INCL_FILE *pFile, int src )
282 if (is_generated( pFile->name ))
284 /* file is generated during make, don't try to open it */
285 pFile->filename = xstrdup( pFile->name );
289 file = src ? open_src_file( pFile ) : open_include_file( pFile );
292 while (fgets( buffer, sizeof(buffer)-1, file ))
297 while (*p && isspace(*p)) p++;
298 if (*p++ != '#') continue;
299 while (*p && isspace(*p)) p++;
300 if (strncmp( p, "include", 7 )) continue;
302 while (*p && isspace(*p)) p++;
303 if (*p != '\"' && *p != '<' ) continue;
305 if (quote == '<') quote = '>';
307 while (*p && (*p != quote)) p++;
310 fprintf( stderr, "%s:%d: Malformed #include directive\n",
311 pFile->filename, line );
315 add_include( pFile, include, line, (quote == '>') );
321 /*******************************************************************
324 static void output_include( FILE *file, INCL_FILE *pFile,
325 INCL_FILE *owner, int *column )
329 if (pFile->owner == owner) return;
330 if (!pFile->filename) return;
331 pFile->owner = owner;
332 if (*column + strlen(pFile->filename) + 1 > 70)
334 fprintf( file, " \\\n" );
337 fprintf( file, " %s", pFile->filename );
338 *column += strlen(pFile->filename) + 1;
339 for (i = 0; i < MAX_INCLUDES; i++)
340 if (pFile->files[i]) output_include( file, pFile->files[i],
345 /*******************************************************************
348 static void output_src( FILE *file, INCL_FILE *pFile, int *column )
350 char *obj = xstrdup( pFile->name );
351 char *ext = strrchr( obj, '.' );
352 if (ext && strchr( ext, '/' )) ext = NULL;
356 if (!strcmp( ext, "y" )) /* yacc file */
358 *column += fprintf( file, "y.tab.o: y.tab.c" );
360 else if (!strcmp( ext, "l" )) /* lex file */
362 *column += fprintf( file, "%s.o: %s.c", LEX_OUTPUT_ROOT, LEX_OUTPUT_ROOT );
364 else if (!strcmp( ext, "rc" )) /* resource file */
366 *column += fprintf( file, "%s.res: %s", obj, pFile->filename );
368 else if (!strcmp( ext, "mc" )) /* message file */
370 *column += fprintf( file, "%s.mc.rc: %s", obj, pFile->filename );
374 *column += fprintf( file, "%s.o: %s", obj, pFile->filename );
381 /*******************************************************************
382 * output_dependencies
384 static void output_dependencies(void)
391 if (Separator && ((file = fopen( OutputFileName, "r+" ))))
393 while (fgets( buffer, sizeof(buffer), file ))
394 if (!strncmp( buffer, Separator, strlen(Separator) )) break;
395 ftruncate( fileno(file), ftell(file) );
396 fseek( file, 0L, SEEK_END );
400 if (!(file = fopen( OutputFileName, Separator ? "a" : "w" )))
402 perror( OutputFileName );
406 for( pFile = firstSrc; pFile; pFile = pFile->next)
409 output_src( file, pFile, &column );
410 for (i = 0; i < MAX_INCLUDES; i++)
411 if (pFile->files[i]) output_include( file, pFile->files[i],
413 fprintf( file, "\n" );
419 /*******************************************************************
422 static void parse_option( const char *opt )
427 if (opt[2]) add_include_path( opt + 2 );
430 if (opt[2]) SrcDir = opt + 2;
434 if (opt[2]) OutputFileName = opt + 2;
437 if (opt[2]) Separator = opt + 2;
438 else Separator = NULL;
441 fprintf( stderr, "Unknown option '%s'\n", opt );
442 fprintf( stderr, Usage, ProgramName );
448 /*******************************************************************
451 int main( int argc, char *argv[] )
455 ProgramName = argv[0];
458 if (*argv[1] == '-') parse_option( argv[1] );
461 pFile = add_src_file( argv[1] );
462 parse_file( pFile, 1 );
467 for (pFile = firstInclude; pFile; pFile = pFile->next)
468 parse_file( pFile, 0 );
469 if( firstSrc ) output_dependencies();