[linux-2.6-block.git] / scripts / basic / docproc.c

/*
 *	docproc is a simple preprocessor for the template files
 *      used as placeholders for the kernel internal documentation.
 *	docproc is used for documentation-frontend and
 *      dependency-generator.
 *	The two usages have in common that they require
 *	some knowledge of the .tmpl syntax, therefore they
 *	are kept together.
 *
 *	documentation-frontend
 *		Scans the template file and call kernel-doc for
 *		all occurrences of ![EIF]file
 *		Beforehand each referenced file is scanned for
 *		any symbols that are exported via these macros:
 *			EXPORT_SYMBOL(), EXPORT_SYMBOL_GPL(), &
 *			EXPORT_SYMBOL_GPL_FUTURE()
 *		This is used to create proper -function and
 *		-nofunction arguments in calls to kernel-doc.
 *		Usage: docproc doc file.tmpl
 *
 *	dependency-generator:
 *		Scans the template file and list all files
 *		referenced in a format recognized by make.
 *		Usage:	docproc depend file.tmpl
 *		Writes dependency information to stdout
 *		in the following format:
 *		file.tmpl src.c	src2.c
 *		The filenames are obtained from the following constructs:
 *		!Efilename
 *		!Ifilename
 *		!Dfilename
 *		!Ffilename
 *
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <unistd.h>
#include <limits.h>
#include <sys/types.h>
#include <sys/wait.h>

/* exitstatus is used to keep track of any failing calls to kernel-doc,
 * but execution continues. */
int exitstatus = 0;

typedef void DFL(char *);
DFL *defaultline;

typedef void FILEONLY(char * file);
FILEONLY *internalfunctions;
FILEONLY *externalfunctions;
FILEONLY *symbolsonly;

typedef void FILELINE(char * file, char * line);
FILELINE * singlefunctions;
FILELINE * entity_system;

#define MAXLINESZ     2048
#define MAXFILES      250
#define KERNELDOCPATH "scripts/"
#define KERNELDOC     "kernel-doc"
#define DOCBOOK       "-docbook"
#define FUNCTION      "-function"
#define NOFUNCTION    "-nofunction"

void usage (void)
{
	fprintf(stderr, "Usage: docproc {doc|depend} file\n");
	fprintf(stderr, "Input is read from file.tmpl. Output is sent to stdout\n");
	fprintf(stderr, "doc: frontend when generating kernel documentation\n");
	fprintf(stderr, "depend: generate list of files referenced within file\n");
}

/*
 * Execute kernel-doc with parameters given in svec
 */
void exec_kernel_doc(char **svec)
{
	pid_t pid;
	int ret;
	char real_filename[PATH_MAX + 1];
	/* Make sure output generated so far are flushed */
	fflush(stdout);
	switch (pid=fork()) {
		case -1:
			perror("fork");
			exit(1);
		case  0:
			memset(real_filename, 0, sizeof(real_filename));
			strncat(real_filename, getenv("SRCTREE"), PATH_MAX);
			strncat(real_filename, KERNELDOCPATH KERNELDOC,
					PATH_MAX - strlen(real_filename));
			execvp(real_filename, svec);
			fprintf(stderr, "exec ");
			perror(real_filename);
			exit(1);
		default:
			waitpid(pid, &ret ,0);
	}
	if (WIFEXITED(ret))
		exitstatus |= WEXITSTATUS(ret);
	else
		exitstatus = 0xff;
}

/* Types used to create list of all exported symbols in a number of files */
struct symbols
{
	char *name;
};

struct symfile
{
	char *filename;
	struct symbols *symbollist;
	int symbolcnt;
};

struct symfile symfilelist[MAXFILES];
int symfilecnt = 0;

void add_new_symbol(struct symfile *sym, char * symname)
{
	sym->symbollist =
          realloc(sym->symbollist, (sym->symbolcnt + 1) * sizeof(char *));
	sym->symbollist[sym->symbolcnt++].name = strdup(symname);
}

/* Add a filename to the list */
struct symfile * add_new_file(char * filename)
{
	symfilelist[symfilecnt++].filename = strdup(filename);
	return &symfilelist[symfilecnt - 1];
}

/* Check if file already are present in the list */
struct symfile * filename_exist(char * filename)
{
	int i;
	for (i=0; i < symfilecnt; i++)
		if (strcmp(symfilelist[i].filename, filename) == 0)
			return &symfilelist[i];
	return NULL;
}

/*
 * List all files referenced within the template file.
 * Files are separated by tabs.
 */
void adddep(char * file)		   { printf("\t%s", file); }
void adddep2(char * file, char * line)     { line = line; adddep(file); }
void noaction(char * line)		   { line = line; }
void noaction2(char * file, char * line)   { file = file; line = line; }

/* Echo the line without further action */
void printline(char * line)               { printf("%s", line); }

/*
 * Find all symbols in filename that are exported with EXPORT_SYMBOL &
 * EXPORT_SYMBOL_GPL (& EXPORT_SYMBOL_GPL_FUTURE implicitly).
 * All symbols located are stored in symfilelist.
 */
void find_export_symbols(char * filename)
{
	FILE * fp;
	struct symfile *sym;
	char line[MAXLINESZ];
	if (filename_exist(filename) == NULL) {
		char real_filename[PATH_MAX + 1];
		memset(real_filename, 0, sizeof(real_filename));
		strncat(real_filename, getenv("SRCTREE"), PATH_MAX);
		strncat(real_filename, filename,
				PATH_MAX - strlen(real_filename));
		sym = add_new_file(filename);
		fp = fopen(real_filename, "r");
		if (fp == NULL)
		{
			fprintf(stderr, "docproc: ");
			perror(real_filename);
			exit(1);
		}
		while (fgets(line, MAXLINESZ, fp)) {
			char *p;
			char *e;
			if (((p = strstr(line, "EXPORT_SYMBOL_GPL")) != NULL) ||
                            ((p = strstr(line, "EXPORT_SYMBOL")) != NULL)) {
				/* Skip EXPORT_SYMBOL{_GPL} */
				while (isalnum(*p) || *p == '_')
					p++;
				/* Remove parentheses & additional whitespace */
				while (isspace(*p))
					p++;
				if (*p != '(')
					continue; /* Syntax error? */
				else
					p++;
				while (isspace(*p))
					p++;
				e = p;
				while (isalnum(*e) || *e == '_')
					e++;
				*e = '\0';
				add_new_symbol(sym, p);
			}
		}
		fclose(fp);
	}
}

/*
 * Document all external or internal functions in a file.
 * Call kernel-doc with following parameters:
 * kernel-doc -docbook -nofunction function_name1 filename
 * Function names are obtained from all the src files
 * by find_export_symbols.
 * intfunc uses -nofunction
 * extfunc uses -function
 */
void docfunctions(char * filename, char * type)
{
	int i,j;
	int symcnt = 0;
	int idx = 0;
	char **vec;

	for (i=0; i <= symfilecnt; i++)
		symcnt += symfilelist[i].symbolcnt;
	vec = malloc((2 + 2 * symcnt + 2) * sizeof(char*));
	if (vec == NULL) {
		perror("docproc: ");
		exit(1);
	}
	vec[idx++] = KERNELDOC;
	vec[idx++] = DOCBOOK;
	for (i=0; i < symfilecnt; i++) {
		struct symfile * sym = &symfilelist[i];
		for (j=0; j < sym->symbolcnt; j++) {
			vec[idx++]     = type;
			vec[idx++] = sym->symbollist[j].name;
		}
	}
	vec[idx++]     = filename;
	vec[idx] = NULL;
	printf("<!-- %s -->\n", filename);
	exec_kernel_doc(vec);
	fflush(stdout);
	free(vec);
}
void intfunc(char * filename) {	docfunctions(filename, NOFUNCTION); }
void extfunc(char * filename) { docfunctions(filename, FUNCTION);   }

/*
 * Document specific function(s) in a file.
 * Call kernel-doc with the following parameters:
 * kernel-doc -docbook -function function1 [-function function2]
 */
void singfunc(char * filename, char * line)
{
	char *vec[200]; /* Enough for specific functions */
        int i, idx = 0;
        int startofsym = 1;
	vec[idx++] = KERNELDOC;
	vec[idx++] = DOCBOOK;

        /* Split line up in individual parameters preceded by FUNCTION */
        for (i=0; line[i]; i++) {
                if (isspace(line[i])) {
                        line[i] = '\0';
                        startofsym = 1;
                        continue;
                }
                if (startofsym) {
                        startofsym = 0;
                        vec[idx++] = FUNCTION;
                        vec[idx++] = &line[i];
                }
        }
	vec[idx++] = filename;
	vec[idx] = NULL;
	exec_kernel_doc(vec);
}

/*
 * Parse file, calling action specific functions for:
 * 1) Lines containing !E
 * 2) Lines containing !I
 * 3) Lines containing !D
 * 4) Lines containing !F
 * 5) Default lines - lines not matching the above
 */
void parse_file(FILE *infile)
{
	char line[MAXLINESZ];
	char * s;
	while (fgets(line, MAXLINESZ, infile)) {
		if (line[0] == '!') {
			s = line + 2;
			switch (line[1]) {
				case 'E':
					while (*s && !isspace(*s)) s++;
					*s = '\0';
					externalfunctions(line+2);
					break;
				case 'I':
					while (*s && !isspace(*s)) s++;
					*s = '\0';
					internalfunctions(line+2);
					break;
				case 'D':
					while (*s && !isspace(*s)) s++;
                                        *s = '\0';
                                        symbolsonly(line+2);
                                        break;
				case 'F':
					/* filename */
					while (*s && !isspace(*s)) s++;
					*s++ = '\0';
                                        /* function names */
					while (isspace(*s))
						s++;
					singlefunctions(line +2, s);
					break;
				default:
					defaultline(line);
			}
		}
		else {
			defaultline(line);
		}
	}
	fflush(stdout);
}


int main(int argc, char *argv[])
{
	FILE * infile;
	if (argc != 3) {
		usage();
		exit(1);
	}
	/* Open file, exit on error */
	infile = fopen(argv[2], "r");
        if (infile == NULL) {
                fprintf(stderr, "docproc: ");
                perror(argv[2]);
                exit(2);
        }

	if (strcmp("doc", argv[1]) == 0)
	{
		/* Need to do this in two passes.
		 * First pass is used to collect all symbols exported
		 * in the various files;
		 * Second pass generate the documentation.
		 * This is required because some functions are declared
		 * and exported in different files :-((
		 */
		/* Collect symbols */
		defaultline       = noaction;
		internalfunctions = find_export_symbols;
		externalfunctions = find_export_symbols;
		symbolsonly       = find_export_symbols;
		singlefunctions   = noaction2;
		parse_file(infile);

		/* Rewind to start from beginning of file again */
		fseek(infile, 0, SEEK_SET);
		defaultline       = printline;
		internalfunctions = intfunc;
		externalfunctions = extfunc;
		symbolsonly       = printline;
		singlefunctions   = singfunc;

		parse_file(infile);
	}
	else if (strcmp("depend", argv[1]) == 0)
	{
		/* Create first part of dependency chain
		 * file.tmpl */
		printf("%s\t", argv[2]);
		defaultline       = noaction;
		internalfunctions = adddep;
		externalfunctions = adddep;
		symbolsonly       = adddep;
		singlefunctions   = adddep2;
		parse_file(infile);
		printf("\n");
	}
	else
	{
		fprintf(stderr, "Unknown option: %s\n", argv[1]);
		exit(1);
	}
	fclose(infile);
	fflush(stdout);
	return exitstatus;
}
Commit	Line	Data
1da177e4 LT	1	/*
	2	* docproc is a simple preprocessor for the template files
	3	* used as placeholders for the kernel internal documentation.
	4	* docproc is used for documentation-frontend and
	5	* dependency-generator.
	6	* The two usages have in common that they require
	7	* some knowledge of the .tmpl syntax, therefore they
	8	* are kept together.
	9	*
	10	* documentation-frontend
	11	* Scans the template file and call kernel-doc for
	12	* all occurrences of ![EIF]file
6dd16f44 RD	13	* Beforehand each referenced file is scanned for
	14	* any symbols that are exported via these macros:
	15	* EXPORT_SYMBOL(), EXPORT_SYMBOL_GPL(), &
	16	* EXPORT_SYMBOL_GPL_FUTURE()
1da177e4 LT	17	* This is used to create proper -function and
	18	* -nofunction arguments in calls to kernel-doc.
	19	* Usage: docproc doc file.tmpl
	20	*
	21	* dependency-generator:
	22	* Scans the template file and list all files
	23	* referenced in a format recognized by make.
	24	* Usage: docproc depend file.tmpl
	25	* Writes dependency information to stdout
	26	* in the following format:
	27	* file.tmpl src.c src2.c
	28	* The filenames are obtained from the following constructs:
	29	* !Efilename
	30	* !Ifilename
	31	* !Dfilename
	32	* !Ffilename
	33	*
	34	*/
	35
	36	#include <stdio.h>
	37	#include <stdlib.h>
	38	#include <string.h>
	39	#include <ctype.h>
	40	#include <unistd.h>
	41	#include <limits.h>
	42	#include <sys/types.h>
	43	#include <sys/wait.h>
	44
	45	/* exitstatus is used to keep track of any failing calls to kernel-doc,
	46	* but execution continues. */
	47	int exitstatus = 0;
	48
	49	typedef void DFL(char *);
	50	DFL *defaultline;
	51
	52	typedef void FILEONLY(char * file);
	53	FILEONLY *internalfunctions;
	54	FILEONLY *externalfunctions;
	55	FILEONLY *symbolsonly;
	56
48b9d03c	57	typedef void FILELINE(char * file, char * line);
1da177e4 LT	58	FILELINE * singlefunctions;
	59	FILELINE * entity_system;
	60
	61	#define MAXLINESZ 2048
	62	#define MAXFILES 250
	63	#define KERNELDOCPATH "scripts/"
	64	#define KERNELDOC "kernel-doc"
	65	#define DOCBOOK "-docbook"
	66	#define FUNCTION "-function"
	67	#define NOFUNCTION "-nofunction"
	68
	69	void usage (void)
	70	{
	71	fprintf(stderr, "Usage: docproc {doc\|depend} file\n");
	72	fprintf(stderr, "Input is read from file.tmpl. Output is sent to stdout\n");
	73	fprintf(stderr, "doc: frontend when generating kernel documentation\n");
	74	fprintf(stderr, "depend: generate list of files referenced within file\n");
	75	}
	76
	77	/*
6dd16f44	78	* Execute kernel-doc with parameters given in svec
1da177e4 LT	79	*/
	80	void exec_kernel_doc(char **svec)
	81	{
	82	pid_t pid;
	83	int ret;
	84	char real_filename[PATH_MAX + 1];
	85	/* Make sure output generated so far are flushed */
	86	fflush(stdout);
6dd16f44	87	switch (pid=fork()) {
1da177e4 LT	88	case -1:
	89	perror("fork");
	90	exit(1);
	91	case 0:
	92	memset(real_filename, 0, sizeof(real_filename));
	93	strncat(real_filename, getenv("SRCTREE"), PATH_MAX);
	94	strncat(real_filename, KERNELDOCPATH KERNELDOC,
	95	PATH_MAX - strlen(real_filename));
	96	execvp(real_filename, svec);
	97	fprintf(stderr, "exec ");
	98	perror(real_filename);
	99	exit(1);
	100	default:
	101	waitpid(pid, &ret ,0);
	102	}
	103	if (WIFEXITED(ret))
	104	exitstatus \|= WEXITSTATUS(ret);
	105	else
	106	exitstatus = 0xff;
	107	}
	108
	109	/* Types used to create list of all exported symbols in a number of files */
	110	struct symbols
	111	{
	112	char *name;
	113	};
	114
	115	struct symfile
	116	{
	117	char *filename;
	118	struct symbols *symbollist;
	119	int symbolcnt;
	120	};
	121
	122	struct symfile symfilelist[MAXFILES];
	123	int symfilecnt = 0;
	124
	125	void add_new_symbol(struct symfile sym, char symname)
	126	{
	127	sym->symbollist =
	128	realloc(sym->symbollist, (sym->symbolcnt + 1) * sizeof(char *));
	129	sym->symbollist[sym->symbolcnt++].name = strdup(symname);
	130	}
	131
	132	/* Add a filename to the list */
	133	struct symfile * add_new_file(char * filename)
	134	{
	135	symfilelist[symfilecnt++].filename = strdup(filename);
	136	return &symfilelist[symfilecnt - 1];
	137	}
6dd16f44	138
1da177e4 LT	139	/* Check if file already are present in the list */
	140	struct symfile * filename_exist(char * filename)
	141	{
	142	int i;
	143	for (i=0; i < symfilecnt; i++)
	144	if (strcmp(symfilelist[i].filename, filename) == 0)
	145	return &symfilelist[i];
	146	return NULL;
	147	}
	148
	149	/*
	150	* List all files referenced within the template file.
	151	* Files are separated by tabs.
	152	*/
	153	void adddep(char * file) { printf("\t%s", file); }
48b9d03c	154	void adddep2(char * file, char * line) { line = line; adddep(file); }
1da177e4	155	void noaction(char * line) { line = line; }
48b9d03c	156	void noaction2(char * file, char * line) { file = file; line = line; }
1da177e4 LT	157
	158	/* Echo the line without further action */
	159	void printline(char * line) { printf("%s", line); }
	160
	161	/*
6dd16f44 RD	162	* Find all symbols in filename that are exported with EXPORT_SYMBOL &
6dd16f44 RD	163	* EXPORT_SYMBOL_GPL (& EXPORT_SYMBOL_GPL_FUTURE implicitly).
1da177e4 LT	164	* All symbols located are stored in symfilelist.
	165	*/
	166	void find_export_symbols(char * filename)
	167	{
	168	FILE * fp;
	169	struct symfile *sym;
	170	char line[MAXLINESZ];
	171	if (filename_exist(filename) == NULL) {
	172	char real_filename[PATH_MAX + 1];
	173	memset(real_filename, 0, sizeof(real_filename));
	174	strncat(real_filename, getenv("SRCTREE"), PATH_MAX);
	175	strncat(real_filename, filename,
	176	PATH_MAX - strlen(real_filename));
	177	sym = add_new_file(filename);
	178	fp = fopen(real_filename, "r");
	179	if (fp == NULL)
	180	{
	181	fprintf(stderr, "docproc: ");
	182	perror(real_filename);
074a5dde	183	exit(1);
1da177e4	184	}
6dd16f44	185	while (fgets(line, MAXLINESZ, fp)) {
48b9d03c M	186	char *p;
48b9d03c M	187	char *e;
6dd16f44 RD	188	if (((p = strstr(line, "EXPORT_SYMBOL_GPL")) != NULL) \|\|
6dd16f44 RD	189	((p = strstr(line, "EXPORT_SYMBOL")) != NULL)) {
1da177e4 LT	190	/* Skip EXPORT_SYMBOL{_GPL} */
	191	while (isalnum(p) \|\| p == '_')
	192	p++;
6dd16f44	193	/* Remove parentheses & additional whitespace */
1da177e4 LT	194	while (isspace(*p))
	195	p++;
	196	if (*p != '(')
	197	continue; /* Syntax error? */
	198	else
	199	p++;
	200	while (isspace(*p))
	201	p++;
	202	e = p;
	203	while (isalnum(e) \|\| e == '_')
	204	e++;
	205	*e = '\0';
	206	add_new_symbol(sym, p);
	207	}
	208	}
	209	fclose(fp);
	210	}
	211	}
	212
	213	/*
	214	* Document all external or internal functions in a file.
	215	* Call kernel-doc with following parameters:
	216	* kernel-doc -docbook -nofunction function_name1 filename
6dd16f44	217	* Function names are obtained from all the src files
1da177e4 LT	218	* by find_export_symbols.
	219	* intfunc uses -nofunction
	220	* extfunc uses -function
	221	*/
	222	void docfunctions(char * filename, char * type)
	223	{
	224	int i,j;
	225	int symcnt = 0;
	226	int idx = 0;
	227	char **vec;
	228
	229	for (i=0; i <= symfilecnt; i++)
	230	symcnt += symfilelist[i].symbolcnt;
	231	vec = malloc((2 + 2 * symcnt + 2) * sizeof(char*));
	232	if (vec == NULL) {
	233	perror("docproc: ");
	234	exit(1);
	235	}
	236	vec[idx++] = KERNELDOC;
	237	vec[idx++] = DOCBOOK;
	238	for (i=0; i < symfilecnt; i++) {
	239	struct symfile * sym = &symfilelist[i];
	240	for (j=0; j < sym->symbolcnt; j++) {
	241	vec[idx++] = type;
	242	vec[idx++] = sym->symbollist[j].name;
	243	}
	244	}
	245	vec[idx++] = filename;
	246	vec[idx] = NULL;
	247	printf("<!-- %s -->\n", filename);
	248	exec_kernel_doc(vec);
	249	fflush(stdout);
	250	free(vec);
	251	}
	252	void intfunc(char * filename) { docfunctions(filename, NOFUNCTION); }
	253	void extfunc(char * filename) { docfunctions(filename, FUNCTION); }
	254
	255	/*
c6120938	256	* Document specific function(s) in a file.
1da177e4 LT	257	* Call kernel-doc with the following parameters:
	258	* kernel-doc -docbook -function function1 [-function function2]
	259	*/
48b9d03c	260	void singfunc(char * filename, char * line)
1da177e4 LT	261	{
	262	char vec[200]; / Enough for specific functions */
	263	int i, idx = 0;
	264	int startofsym = 1;
	265	vec[idx++] = KERNELDOC;
	266	vec[idx++] = DOCBOOK;
	267
6dd16f44	268	/* Split line up in individual parameters preceded by FUNCTION */
1da177e4 LT	269	for (i=0; line[i]; i++) {
	270	if (isspace(line[i])) {
	271	line[i] = '\0';
	272	startofsym = 1;
	273	continue;
	274	}
	275	if (startofsym) {
	276	startofsym = 0;
	277	vec[idx++] = FUNCTION;
	278	vec[idx++] = &line[i];
	279	}
	280	}
	281	vec[idx++] = filename;
	282	vec[idx] = NULL;
	283	exec_kernel_doc(vec);
	284	}
	285
	286	/*
	287	* Parse file, calling action specific functions for:
	288	* 1) Lines containing !E
	289	* 2) Lines containing !I
	290	* 3) Lines containing !D
	291	* 4) Lines containing !F
	292	* 5) Default lines - lines not matching the above
	293	*/
	294	void parse_file(FILE *infile)
	295	{
	296	char line[MAXLINESZ];
48b9d03c	297	char * s;
6dd16f44	298	while (fgets(line, MAXLINESZ, infile)) {
1da177e4 LT	299	if (line[0] == '!') {
	300	s = line + 2;
	301	switch (line[1]) {
	302	case 'E':
	303	while (s && !isspace(s)) s++;
	304	*s = '\0';
	305	externalfunctions(line+2);
	306	break;
	307	case 'I':
	308	while (s && !isspace(s)) s++;
	309	*s = '\0';
	310	internalfunctions(line+2);
	311	break;
	312	case 'D':
	313	while (s && !isspace(s)) s++;
	314	*s = '\0';
	315	symbolsonly(line+2);
	316	break;
	317	case 'F':
	318	/* filename */
	319	while (s && !isspace(s)) s++;
	320	*s++ = '\0';
	321	/* function names */
	322	while (isspace(*s))
	323	s++;
	324	singlefunctions(line +2, s);
	325	break;
	326	default:
	327	defaultline(line);
	328	}
	329	}
	330	else {
	331	defaultline(line);
	332	}
	333	}
	334	fflush(stdout);
	335	}
	336
	337
	338	int main(int argc, char *argv[])
	339	{
	340	FILE * infile;
	341	if (argc != 3) {
	342	usage();
	343	exit(1);
	344	}
	345	/* Open file, exit on error */
	346	infile = fopen(argv[2], "r");
	347	if (infile == NULL) {
	348	fprintf(stderr, "docproc: ");
	349	perror(argv[2]);
	350	exit(2);
	351	}
	352
	353	if (strcmp("doc", argv[1]) == 0)
	354	{
	355	/* Need to do this in two passes.
	356	* First pass is used to collect all symbols exported
6dd16f44	357	* in the various files;
1da177e4	358	* Second pass generate the documentation.
6dd16f44	359	* This is required because some functions are declared
1da177e4 LT	360	* and exported in different files :-((
	361	*/
	362	/* Collect symbols */
	363	defaultline = noaction;
	364	internalfunctions = find_export_symbols;
	365	externalfunctions = find_export_symbols;
	366	symbolsonly = find_export_symbols;
	367	singlefunctions = noaction2;
	368	parse_file(infile);
	369
	370	/* Rewind to start from beginning of file again */
	371	fseek(infile, 0, SEEK_SET);
	372	defaultline = printline;
	373	internalfunctions = intfunc;
	374	externalfunctions = extfunc;
	375	symbolsonly = printline;
	376	singlefunctions = singfunc;
	377
	378	parse_file(infile);
	379	}
	380	else if (strcmp("depend", argv[1]) == 0)
	381	{
	382	/* Create first part of dependency chain
	383	* file.tmpl */
	384	printf("%s\t", argv[2]);
	385	defaultline = noaction;
	386	internalfunctions = adddep;
	387	externalfunctions = adddep;
	388	symbolsonly = adddep;
	389	singlefunctions = adddep2;
	390	parse_file(infile);
	391	printf("\n");
	392	}
	393	else
	394	{
	395	fprintf(stderr, "Unknown option: %s\n", argv[1]);
	396	exit(1);
	397	}
	398	fclose(infile);
	399	fflush(stdout);
	400	return exitstatus;
	401	}