[PATCH] docproc: drop unused utility

* [PATCH] docproc: drop unused utility
@ 2015-11-11  9:50 Sergey Koshechkin
  2015-11-13  6:56 ` Sascha Hauer
  0 siblings, 1 reply; 2+ messages in thread
From: Sergey Koshechkin @ 2015-11-11  9:50 UTC (permalink / raw)
  To: barebox; +Cc: Sergey Koshechkin

Signed-off-by: Sergey Koshechkin <serge.koshechkin@gmail.com>
---
 scripts/basic/.gitignore |   1 -
 scripts/basic/Makefile   |   3 +-
 scripts/basic/docproc.c  | 402 -----------------------------------------------
 3 files changed, 1 insertion(+), 405 deletions(-)
 delete mode 100644 scripts/basic/docproc.c

diff --git a/scripts/basic/.gitignore b/scripts/basic/.gitignore
index dc24f5f..a776371 100644
--- a/scripts/basic/.gitignore
+++ b/scripts/basic/.gitignore
@@ -1,2 +1 @@
-docproc
 fixdep
diff --git a/scripts/basic/Makefile b/scripts/basic/Makefile
index 4f284df..9e92d89 100644
--- a/scripts/basic/Makefile
+++ b/scripts/basic/Makefile
@@ -7,9 +7,8 @@
 # .config is included by main Makefile.
 # ---------------------------------------------------------------------------
 # fixdep: 	 Used to generate dependency information during build process
-# docproc:	 Used in Documentation/docbook
 
-hostprogs-y	:= fixdep docproc
+hostprogs-y	:= fixdep
 always		:= $(hostprogs-y)
 
 # fixdep is needed to compile other host programs
diff --git a/scripts/basic/docproc.c b/scripts/basic/docproc.c
deleted file mode 100644
index 9f6535d..0000000
--- a/scripts/basic/docproc.c
+++ /dev/null
@@ -1,402 +0,0 @@
-/*
- *	docproc is a simple preprocessor for the template files
- *      used as placeholders for the barebox 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 are scanned for
- *		any exported sympols "EXPORT_SYMBOL()" statements.
- *		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 givin 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 *));
-	if (!sym->symbollist) {
-		fprintf(stderr, "docproc: out of memory\n");
-		exit(1);
-	}
-	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 exported with EXPORT_SYMBOL and EXPORT_SYMBOL_GPL
- * in filename.
- * 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")) != 0) ||
-                            ((p = strstr(line, "EXPORT_SYMBOL")) != 0)) {
-				/* Skip EXPORT_SYMBOL{_GPL} */
-				while (isalnum(*p) || *p == '_')
-					p++;
-				/* Remove paranteses and additional ws */
-				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 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 preceeded 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 function 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;
-}
-
-- 
2.6.1


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