* documentation-frontend
* Scans the template file and call kernel-doc for
* all occurrences of ![EIF]file
- * Beforehand each referenced file are scanned for
- * any exported sympols "EXPORT_SYMBOL()" statements.
+ * 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
* !Ifilename
* !Dfilename
* !Ffilename
+ * !Pfilename
*
*/
typedef void FILELINE(char * file, char * line);
FILELINE * singlefunctions;
FILELINE * entity_system;
+FILELINE * docsection;
#define MAXLINESZ 2048
#define MAXFILES 250
#define DOCBOOK "-docbook"
#define FUNCTION "-function"
#define NOFUNCTION "-nofunction"
+#define NODOCSECTIONS "-no-doc-sections"
-void usage (void)
+static char *srctree, *kernsrctree;
+
+static 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");
+ fprintf(stderr, "Environment variable SRCTREE: absolute path to sources.\n");
+ fprintf(stderr, " KBUILD_SRC: absolute path to kernel source tree.\n");
}
/*
- * Execute kernel-doc with parameters givin in svec
+ * Execute kernel-doc with parameters given in svec
*/
-void exec_kernel_doc(char **svec)
+static 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()) {
+ 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,
+ strncat(real_filename, kernsrctree, PATH_MAX);
+ strncat(real_filename, "/" KERNELDOCPATH KERNELDOC,
PATH_MAX - strlen(real_filename));
execvp(real_filename, svec);
fprintf(stderr, "exec ");
struct symfile symfilelist[MAXFILES];
int symfilecnt = 0;
-void add_new_symbol(struct symfile *sym, char * symname)
+static void add_new_symbol(struct symfile *sym, char * symname)
{
sym->symbollist =
realloc(sym->symbollist, (sym->symbolcnt + 1) * sizeof(char *));
}
/* Add a filename to the list */
-struct symfile * add_new_file(char * filename)
+static 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)
+static struct symfile * filename_exist(char * filename)
{
int i;
for (i=0; i < symfilecnt; i++)
* 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; }
+static void adddep(char * file) { printf("\t%s", file); }
+static void adddep2(char * file, char * line) { line = line; adddep(file); }
+static void noaction(char * line) { line = line; }
+static void noaction2(char * file, char * line) { file = file; line = line; }
/* Echo the line without further action */
-void printline(char * line) { printf("%s", line); }
+static void printline(char * line) { printf("%s", line); }
/*
- * Find all symbols exported with EXPORT_SYMBOL and EXPORT_SYMBOL_GPL
- * in filename.
+ * 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)
+static void find_export_symbols(char * filename)
{
FILE * fp;
struct symfile *sym;
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, srctree, PATH_MAX);
+ strncat(real_filename, "/", PATH_MAX - strlen(real_filename));
strncat(real_filename, filename,
PATH_MAX - strlen(real_filename));
sym = add_new_file(filename);
perror(real_filename);
exit(1);
}
- while(fgets(line, MAXLINESZ, fp)) {
+ while (fgets(line, MAXLINESZ, fp)) {
char *p;
char *e;
- if (((p = strstr(line, "EXPORT_SYMBOL_GPL")) != 0) ||
- ((p = strstr(line, "EXPORT_SYMBOL")) != 0)) {
+ if (((p = strstr(line, "EXPORT_SYMBOL_GPL")) != NULL) ||
+ ((p = strstr(line, "EXPORT_SYMBOL")) != NULL)) {
/* Skip EXPORT_SYMBOL{_GPL} */
while (isalnum(*p) || *p == '_')
p++;
- /* Remove paranteses and additional ws */
+ /* Remove parentheses & additional whitespace */
while (isspace(*p))
p++;
if (*p != '(')
* 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
+ * 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)
+static void docfunctions(char * filename, char * type)
{
int i,j;
int symcnt = 0;
for (i=0; i <= symfilecnt; i++)
symcnt += symfilelist[i].symbolcnt;
- vec = malloc((2 + 2 * symcnt + 2) * sizeof(char*));
+ vec = malloc((2 + 2 * symcnt + 3) * sizeof(char *));
if (vec == NULL) {
perror("docproc: ");
exit(1);
}
vec[idx++] = KERNELDOC;
vec[idx++] = DOCBOOK;
+ vec[idx++] = NODOCSECTIONS;
for (i=0; i < symfilecnt; i++) {
struct symfile * sym = &symfilelist[i];
for (j=0; j < sym->symbolcnt; j++) {
fflush(stdout);
free(vec);
}
-void intfunc(char * filename) { docfunctions(filename, NOFUNCTION); }
-void extfunc(char * filename) { docfunctions(filename, FUNCTION); }
+static void intfunc(char * filename) { docfunctions(filename, NOFUNCTION); }
+static 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)
+static void singfunc(char * filename, char * line)
{
char *vec[200]; /* Enough for specific functions */
int i, idx = 0;
vec[idx++] = KERNELDOC;
vec[idx++] = DOCBOOK;
- /* Split line up in individual parameters preceeded by FUNCTION */
+ /* Split line up in individual parameters preceded by FUNCTION */
for (i=0; line[i]; i++) {
if (isspace(line[i])) {
line[i] = '\0';
}
/*
+ * Insert specific documentation section from a file.
+ * Call kernel-doc with the following parameters:
+ * kernel-doc -docbook -function "doc section" filename
+ */
+static void docsect(char *filename, char *line)
+{
+ char *vec[6]; /* kerneldoc -docbook -function "section" file NULL */
+ char *s;
+
+ for (s = line; *s; s++)
+ if (*s == '\n')
+ *s = '\0';
+
+ vec[0] = KERNELDOC;
+ vec[1] = DOCBOOK;
+ vec[2] = FUNCTION;
+ vec[3] = line;
+ vec[4] = filename;
+ vec[5] = 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
+ * 5) Lines containing !P
+ * 6) Default lines - lines not matching the above
*/
-void parse_file(FILE *infile)
+static void parse_file(FILE *infile)
{
char line[MAXLINESZ];
char * s;
- while(fgets(line, MAXLINESZ, infile)) {
+ while (fgets(line, MAXLINESZ, infile)) {
if (line[0] == '!') {
s = line + 2;
switch (line[1]) {
s++;
singlefunctions(line +2, s);
break;
+ case 'P':
+ /* filename */
+ while (*s && !isspace(*s)) s++;
+ *s++ = '\0';
+ /* DOC: section name */
+ while (isspace(*s))
+ s++;
+ docsection(line + 2, s);
+ break;
default:
defaultline(line);
}
int main(int argc, char *argv[])
{
FILE * infile;
+
+ srctree = getenv("SRCTREE");
+ if (!srctree)
+ srctree = getcwd(NULL, 0);
+ kernsrctree = getenv("KBUILD_SRC");
+ if (!kernsrctree || !*kernsrctree)
+ kernsrctree = srctree;
if (argc != 3) {
usage();
exit(1);
{
/* Need to do this in two passes.
* First pass is used to collect all symbols exported
- * in the various files.
+ * in the various files;
* Second pass generate the documentation.
- * This is required because function are declared
+ * This is required because some functions are declared
* and exported in different files :-((
*/
/* Collect symbols */
externalfunctions = find_export_symbols;
symbolsonly = find_export_symbols;
singlefunctions = noaction2;
+ docsection = noaction2;
parse_file(infile);
/* Rewind to start from beginning of file again */
externalfunctions = extfunc;
symbolsonly = printline;
singlefunctions = singfunc;
+ docsection = docsect;
parse_file(infile);
}
externalfunctions = adddep;
symbolsonly = adddep;
singlefunctions = adddep2;
+ docsection = adddep2;
parse_file(infile);
printf("\n");
}
fflush(stdout);
return exitstatus;
}
-
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff