2 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
3 * Released under the terms of the GNU GPL v2.0.
14 #define LKC_DIRECT_LINK
17 static void conf_warning(const char *fmt, ...)
18 __attribute__ ((format (printf, 1, 2)));
20 static const char *conf_filename;
21 static int conf_lineno, conf_warnings, conf_unsaved;
23 const char conf_def_filename[] = ".config";
25 const char conf_defname[] = "arch/$ARCH/defconfig";
27 const char *conf_confnames[] = {
33 static void conf_warning(const char *fmt, ...)
37 fprintf(stderr, "%s:%d:warning: ", conf_filename, conf_lineno);
38 vfprintf(stderr, fmt, ap);
39 fprintf(stderr, "\n");
44 static char *conf_expand_value(const char *in)
48 static char res_value[SYMBOL_MAXLENGTH];
49 char *dst, name[SYMBOL_MAXLENGTH];
53 while ((src = strchr(in, '$'))) {
54 strncat(res_value, in, src - in);
57 while (isalnum(*src) || *src == '_')
60 sym = sym_lookup(name, 0);
62 strcat(res_value, sym_get_string_value(sym));
65 strcat(res_value, in);
70 char *conf_get_default_confname(void)
73 static char fullname[PATH_MAX+1];
76 name = conf_expand_value(conf_defname);
77 env = getenv(SRCTREE);
79 sprintf(fullname, "%s/%s", env, name);
80 if (!stat(fullname, &buf))
86 int conf_read_simple(const char *name)
95 in = zconf_fopen(name);
97 const char **names = conf_confnames;
98 while ((name = *names++)) {
99 name = conf_expand_value(name);
100 in = zconf_fopen(name);
103 "# using defaults found in %s\n"
112 conf_filename = name;
117 for_all_symbols(i, sym) {
118 sym->flags |= SYMBOL_NEW | SYMBOL_CHANGED;
119 if (sym_is_choice(sym))
120 sym->flags &= ~SYMBOL_NEW;
121 sym->flags &= ~SYMBOL_VALID;
129 sym->user.val = NULL;
134 while (fgets(line, sizeof(line), in)) {
139 if (memcmp(line + 2, "V3_CONFIG_", 10))
141 p = strchr(line + 12, ' ');
145 if (strncmp(p, "is not set", 10))
147 sym = sym_find(line + 12);
149 conf_warning("trying to assign nonexistent symbol %s", line + 12);
151 } else if (!(sym->flags & SYMBOL_NEW)) {
152 conf_warning("trying to reassign symbol %s", sym->name);
159 sym->flags &= ~SYMBOL_NEW;
166 if (memcmp(line, "V3_CONFIG_", 10)) {
167 conf_warning("unexpected data (1)");
170 p = strchr(line + 10, '=');
174 p2 = strchr(p, '\n');
177 sym = sym_find(line + 10);
179 conf_warning("trying to assign nonexistent symbol %s", line + 10);
181 } else if (!(sym->flags & SYMBOL_NEW)) {
182 conf_warning("trying to reassign symbol %s", sym->name);
189 sym->flags &= ~SYMBOL_NEW;
195 sym->flags &= ~SYMBOL_NEW;
200 sym->flags &= ~SYMBOL_NEW;
203 conf_warning("symbol value '%s' invalid for %s", p, sym->name);
208 for (p2 = p; (p2 = strpbrk(p2, "\"\\")); p2++) {
213 memmove(p2, p2 + 1, strlen(p2));
216 conf_warning("invalid string found");
221 if (sym_string_valid(sym, p)) {
222 sym->user.val = strdup(p);
223 sym->flags &= ~SYMBOL_NEW;
225 conf_warning("symbol value '%s' invalid for %s", p, sym->name);
236 conf_warning("unexpected data (2)");
239 if (sym && sym_is_choice_value(sym)) {
240 struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym));
241 switch (sym->user.tri) {
245 if (cs->user.tri == yes) {
246 conf_warning("%s creates inconsistent choice state", sym->name);
247 cs->flags |= SYMBOL_NEW;
251 if (cs->user.tri != no) {
252 conf_warning("%s creates inconsistent choice state", sym->name);
253 cs->flags |= SYMBOL_NEW;
258 cs->user.tri = E_OR(cs->user.tri, sym->user.tri);
264 sym_calc_value(modules_sym);
268 int conf_read(const char *name)
271 struct property *prop;
275 if (conf_read_simple(name))
278 for_all_symbols(i, sym) {
280 if (sym_is_choice(sym) || (sym->flags & SYMBOL_AUTO))
282 if (sym_has_value(sym) && (sym->flags & SYMBOL_WRITE)) {
283 /* check that calculated value agrees with saved value */
287 if (sym->user.tri != sym_get_tristate_value(sym))
289 if (!sym_is_choice(sym))
292 if (!strcmp(sym->curr.val, sym->user.val))
296 } else if (!sym_has_value(sym) && !(sym->flags & SYMBOL_WRITE))
297 /* no previous value and not saved */
300 /* maybe print value in verbose mode... */
302 if (sym_has_value(sym) && !sym_is_choice_value(sym)) {
303 if (sym->visible == no)
304 sym->flags |= SYMBOL_NEW;
309 if (!sym_string_within_range(sym, sym->user.val)) {
310 sym->flags |= SYMBOL_NEW;
311 sym->flags &= ~SYMBOL_VALID;
317 if (!sym_is_choice(sym))
319 prop = sym_get_choice_prop(sym);
320 for (e = prop->expr; e; e = e->left.expr)
321 if (e->right.sym->visible != no)
322 sym->flags |= e->right.sym->flags & SYMBOL_NEW;
325 sym_change_count = conf_warnings || conf_unsaved;
330 int conf_write(const char *name)
335 const char *basename;
336 char dirname[128], tmpname[128], newname[128];
340 int use_timestamp = 1;
344 if (name && name[0]) {
348 if (!stat(name, &st) && S_ISDIR(st.st_mode)) {
349 strcpy(dirname, name);
350 strcat(dirname, "/");
351 basename = conf_def_filename;
352 } else if ((slash = strrchr(name, '/'))) {
353 int size = slash - name + 1;
354 memcpy(dirname, name, size);
357 basename = slash + 1;
359 basename = conf_def_filename;
363 basename = conf_def_filename;
365 sprintf(newname, "%s.tmpconfig.%d", dirname, (int)getpid());
366 out = fopen(newname, "w");
371 out_h = fopen(".tmpconfig.h", "w");
374 file_write_dep(NULL);
376 sym = sym_lookup("KERNELVERSION", 0);
379 env = getenv("KCONFIG_NOTIMESTAMP");
384 "# Automatically generated make config: don't edit\n"
388 sym_get_string_value(sym),
389 use_timestamp ? "# " : "",
390 use_timestamp ? ctime(&now) : "");
392 fprintf(out_h, "/*\n"
393 " * Automatically generated C config: don't edit\n"
394 " * Palacios version: %s\n"
397 "#define AUTOCONF_INCLUDED\n",
398 sym_get_string_value(sym),
399 use_timestamp ? " * " : "",
400 use_timestamp ? ctime(&now) : "");
402 if (!sym_change_count)
403 sym_clear_all_valid();
405 menu = rootmenu.list;
409 if (!menu_is_visible(menu))
411 str = menu_get_prompt(menu);
421 } else if (!(sym->flags & SYMBOL_CHOICE)) {
423 if (!(sym->flags & SYMBOL_WRITE))
425 sym->flags &= ~SYMBOL_WRITE;
427 if (type == S_TRISTATE) {
428 sym_calc_value(modules_sym);
429 if (modules_sym->curr.tri == no)
435 switch (sym_get_tristate_value(sym)) {
437 fprintf(out, "# V3_CONFIG_%s is not set\n", sym->name);
439 fprintf(out_h, "#undef V3_CONFIG_%s\n", sym->name);
442 fprintf(out, "V3_CONFIG_%s=m\n", sym->name);
444 fprintf(out_h, "#define V3_CONFIG_%s_MODULE 1\n", sym->name);
447 fprintf(out, "V3_CONFIG_%s=y\n", sym->name);
449 fprintf(out_h, "#define V3_CONFIG_%s 1\n", sym->name);
455 str = sym_get_string_value(sym);
456 fprintf(out, "V3_CONFIG_%s=\"", sym->name);
458 fprintf(out_h, "#define V3_CONFIG_%s \"", sym->name);
460 l = strcspn(str, "\"\\");
462 fwrite(str, l, 1, out);
464 fwrite(str, l, 1, out_h);
467 while (*str == '\\' || *str == '"') {
468 fprintf(out, "\\%c", *str);
470 fprintf(out_h, "\\%c", *str);
476 fputs("\"\n", out_h);
479 str = sym_get_string_value(sym);
480 if (str[0] != '0' || (str[1] != 'x' && str[1] != 'X')) {
481 fprintf(out, "V3_CONFIG_%s=%s\n", sym->name, str);
483 fprintf(out_h, "#define V3_CONFIG_%s 0x%s\n", sym->name, str);
487 str = sym_get_string_value(sym);
488 fprintf(out, "V3_CONFIG_%s=%s\n", sym->name, str);
490 fprintf(out_h, "#define V3_CONFIG_%s %s\n", sym->name, str);
502 else while ((menu = menu->parent)) {
512 rename(".tmpconfig.h", "palacios/include/autoconf.h");
514 if (!name || basename != conf_def_filename) {
516 name = conf_def_filename;
517 sprintf(tmpname, "%s.old", name);
518 rename(name, tmpname);
520 sprintf(tmpname, "%s%s", dirname, basename);
521 if (rename(newname, tmpname))
524 sym_change_count = 0;