Patch from Enrico WEIGELT <weigelt@metux.de> to disable __cxa_atexit for those C libraries with no support (old uClibc).
2 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
3 * Released under the terms of the GNU GPL v2.0.
17 #define LKC_DIRECT_LINK
20 static void conf_warning(const char *fmt, ...)
21 __attribute__ ((format (printf, 1, 2)));
23 static const char *conf_filename;
24 static int conf_lineno, conf_warnings, conf_unsaved;
27 const char conf_defname[] = "arch/$ARCH/defconfig";
30 static void conf_warning(const char *fmt, ...)
34 fprintf(stderr, "%s:%d:warning: ", conf_filename, conf_lineno);
35 vfprintf(stderr, fmt, ap);
36 fprintf(stderr, "\n");
41 const char *conf_get_configname(void)
43 char *name = getenv("KCONFIG_CONFIG");
45 return name ? name : ".config";
48 static char *conf_expand_value(const char *in)
52 static char res_value[SYMBOL_MAXLENGTH];
53 char *dst, name[SYMBOL_MAXLENGTH];
57 while ((src = strchr(in, '$'))) {
58 strncat(res_value, in, src - in);
61 while (isalnum(*src) || *src == '_')
64 sym = sym_lookup(name, 0);
66 strcat(res_value, sym_get_string_value(sym));
69 strcat(res_value, in);
74 char *conf_get_default_confname(void)
77 static char fullname[PATH_MAX+1];
80 name = conf_expand_value(conf_defname);
81 env = getenv(SRCTREE);
83 sprintf(fullname, "%s/%s", env, name);
84 if (!stat(fullname, &buf))
90 int conf_read_simple(const char *name, int def)
99 in = zconf_fopen(name);
101 struct property *prop;
103 name = conf_get_configname();
104 in = zconf_fopen(name);
108 if (!sym_defconfig_list)
111 for_all_defaults(sym_defconfig_list, prop) {
112 if (expr_calc_value(prop->visible.expr) == no ||
113 prop->expr->type != E_SYMBOL)
115 name = conf_expand_value(prop->expr->left.sym->name);
116 in = zconf_fopen(name);
119 "# using defaults found in %s\n"
129 conf_filename = name;
134 def_flags = SYMBOL_DEF << def;
135 for_all_symbols(i, sym) {
136 sym->flags |= SYMBOL_CHANGED;
137 sym->flags &= ~(def_flags|SYMBOL_VALID);
138 if (sym_is_choice(sym))
139 sym->flags |= def_flags;
144 if (sym->def[def].val)
145 free(sym->def[def].val);
147 sym->def[def].val = NULL;
148 sym->def[def].tri = no;
152 while (fgets(line, sizeof(line), in)) {
157 if (memcmp(line + 2, "CT_", 3))
159 p = strchr(line + 5, ' ');
163 if (strncmp(p, "is not set", 10))
165 if (def == S_DEF_USER) {
166 sym = sym_find(line + 5);
168 conf_warning("trying to assign nonexistent symbol %s", line + 5);
172 sym = sym_lookup(line + 5, 0);
173 if (sym->type == S_UNKNOWN)
174 sym->type = S_BOOLEAN;
176 if (sym->flags & def_flags) {
177 conf_warning("trying to reassign symbol %s", sym->name);
183 sym->def[def].tri = no;
184 sym->flags |= def_flags;
191 if (memcmp(line, "CT_", 3)) {
192 conf_warning("unexpected data");
195 p = strchr(line + 3, '=');
199 p2 = strchr(p, '\n');
205 if (def == S_DEF_USER) {
206 sym = sym_find(line + 3);
208 conf_warning("trying to assign nonexistent symbol %s", line + 3);
212 sym = sym_lookup(line + 3, 0);
213 if (sym->type == S_UNKNOWN)
216 if (sym->flags & def_flags) {
217 conf_warning("trying to reassign symbol %s", sym->name);
223 sym->def[def].tri = mod;
224 sym->flags |= def_flags;
229 sym->def[def].tri = yes;
230 sym->flags |= def_flags;
234 sym->def[def].tri = no;
235 sym->flags |= def_flags;
238 conf_warning("symbol value '%s' invalid for %s", p, sym->name);
242 for (p2 = p; *p2 && !isspace(*p2); p2++)
244 sym->type = S_STRING;
250 for (p2 = p; (p2 = strpbrk(p2, "\"\\")); p2++) {
255 memmove(p2, p2 + 1, strlen(p2));
258 conf_warning("invalid string found");
264 if (sym_string_valid(sym, p)) {
265 sym->def[def].val = strdup(p);
266 sym->flags |= def_flags;
268 conf_warning("symbol value '%s' invalid for %s", p, sym->name);
280 conf_warning("unexpected data");
283 if (sym && sym_is_choice_value(sym)) {
284 struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym));
285 switch (sym->def[def].tri) {
289 if (cs->def[def].tri == yes) {
290 conf_warning("%s creates inconsistent choice state", sym->name);
291 cs->flags &= ~def_flags;
295 if (cs->def[def].tri != no) {
296 conf_warning("%s creates inconsistent choice state", sym->name);
297 cs->flags &= ~def_flags;
299 cs->def[def].val = sym;
302 cs->def[def].tri = E_OR(cs->def[def].tri, sym->def[def].tri);
308 sym_calc_value(modules_sym);
312 int conf_read(const char *name)
315 struct property *prop;
319 sym_change_count = 0;
321 if (conf_read_simple(name, S_DEF_USER))
324 for_all_symbols(i, sym) {
326 if (sym_is_choice(sym) || (sym->flags & SYMBOL_AUTO))
328 if (sym_has_value(sym) && (sym->flags & SYMBOL_WRITE)) {
329 /* check that calculated value agrees with saved value */
333 if (sym->def[S_DEF_USER].tri != sym_get_tristate_value(sym))
335 if (!sym_is_choice(sym))
338 if (!strcmp(sym->curr.val, sym->def[S_DEF_USER].val))
342 } else if (!sym_has_value(sym) && !(sym->flags & SYMBOL_WRITE))
343 /* no previous value and not saved */
346 /* maybe print value in verbose mode... */
348 if (sym_has_value(sym) && !sym_is_choice_value(sym)) {
349 if (sym->visible == no)
350 sym->flags &= ~SYMBOL_DEF_USER;
355 if (!sym_string_within_range(sym, sym->def[S_DEF_USER].val))
356 sym->flags &= ~(SYMBOL_VALID|SYMBOL_DEF_USER);
361 if (!sym_is_choice(sym))
363 prop = sym_get_choice_prop(sym);
365 for (e = prop->expr; e; e = e->left.expr)
366 if (e->right.sym->visible != no)
367 flags &= e->right.sym->flags;
368 sym->flags &= flags | ~SYMBOL_DEF_USER;
371 sym_change_count += conf_warnings || conf_unsaved;
376 struct menu *next_menu(struct menu *menu)
378 if (menu->list) return menu->list;
384 } while ((menu = menu->parent));
389 #define SYMBOL_FORCEWRITE (1<<31)
391 int conf_write(const char *name)
396 const char *basename;
397 char dirname[128], tmpname[128], newname[128];
398 int type, l, writetype;
401 int use_timestamp = 1;
405 if (name && name[0]) {
409 if (!stat(name, &st) && S_ISDIR(st.st_mode)) {
410 strcpy(dirname, name);
411 strcat(dirname, "/");
412 basename = conf_get_configname();
413 } else if ((slash = strrchr(name, '/'))) {
414 int size = slash - name + 1;
415 memcpy(dirname, name, size);
418 basename = slash + 1;
420 basename = conf_get_configname();
424 basename = conf_get_configname();
426 sprintf(newname, "%s%s", dirname, basename);
427 env = getenv("KCONFIG_OVERWRITECONFIG");
429 sprintf(tmpname, "%s.tmpconfig.%d", dirname, (int)getpid());
430 out = fopen(tmpname, "w");
433 out = fopen(newname, "w");
438 sym = sym_lookup("PROJECTVERSION", 0);
441 env = getenv("KCONFIG_NOTIMESTAMP");
446 "# Automatically generated make config: don't edit\n"
447 "# "PROJECT_NAME" version: %s\n"
450 sym_get_string_value(sym),
451 use_timestamp ? "# " : "",
452 use_timestamp ? ctime(&now) : "");
454 if (!sym_change_count)
455 sym_clear_all_valid();
457 // Write out all symbols (even in closed sub-menus).
459 for (menu = rootmenu.list; menu; menu = next_menu(menu))
460 if (menu->sym) menu->sym->flags |= SYMBOL_FORCEWRITE;
461 writetype = SYMBOL_FORCEWRITE;
463 // Don't write out symbols in closed menus.
465 } else writetype = SYMBOL_WRITE;
468 menu = rootmenu.list;
472 if (!menu_is_visible(menu))
474 str = menu_get_prompt(menu);
479 } else if (!(sym->flags & SYMBOL_CHOICE)) {
481 if (!(sym->flags & writetype))
483 sym->flags &= ~writetype;
485 if (type == S_TRISTATE) {
486 sym_calc_value(modules_sym);
487 if (modules_sym->curr.tri == no)
493 switch (sym_get_tristate_value(sym)) {
495 fprintf(out, "# CT_%s is not set\n", sym->name);
498 fprintf(out, "CT_%s=m\n", sym->name);
501 fprintf(out, "CT_%s=y\n", sym->name);
506 str = sym_get_string_value(sym);
507 fprintf(out, "CT_%s=\"", sym->name);
509 l = strcspn(str, "\"\\");
511 fwrite(str, l, 1, out);
516 fprintf(out, "\\%c", *str++);
521 str = sym_get_string_value(sym);
522 if (str[0] != '0' || (str[1] != 'x' && str[1] != 'X')) {
523 fprintf(out, "CT_%s=%s\n", sym->name, *str ? str : "0");
527 str = sym_get_string_value(sym);
528 fprintf(out, "CT_%s=%s\n", sym->name, *str ? str : "0");
534 if (writetype == SYMBOL_WRITE) {
541 else while ((menu = menu->parent)) {
548 menu = next_menu(menu);
553 strcat(dirname, basename);
554 strcat(dirname, ".old");
555 rename(newname, dirname);
556 if (rename(tmpname, newname))
561 "# configuration written to %s\n"
564 sym_change_count = 0;
569 int conf_split_config(void)
571 char *name, path[128];
577 name = getenv("KCONFIG_AUTOCONFIG");
579 name = "include/config/auto.conf";
580 conf_read_simple(name, S_DEF_AUTO);
582 if (chdir("include/config"))
586 for_all_symbols(i, sym) {
588 if ((sym->flags & SYMBOL_AUTO) || !sym->name)
590 if (sym->flags & SYMBOL_WRITE) {
591 if (sym->flags & SYMBOL_DEF_AUTO) {
593 * symbol has old and new value,
599 if (sym_get_tristate_value(sym) ==
600 sym->def[S_DEF_AUTO].tri)
606 if (!strcmp(sym_get_string_value(sym),
607 sym->def[S_DEF_AUTO].val))
615 * If there is no old value, only 'no' (unset)
616 * is allowed as new value.
621 if (sym_get_tristate_value(sym) == no)
628 } else if (!(sym->flags & SYMBOL_DEF_AUTO))
629 /* There is neither an old nor a new value. */
632 * There is an old value, but no new value ('no' (unset)
633 * isn't saved in auto.conf, so the old value is always
634 * different from 'no').
637 /* Replace all '_' and append ".h" */
642 *d++ = (c == '_') ? '/' : c;
646 /* Assume directory path already exists. */
647 fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
649 if (errno != ENOENT) {
654 * Create directory components,
655 * unless they exist already.
658 while ((d = strchr(d, '/'))) {
660 if (stat(path, &sb) && mkdir(path, 0755)) {
667 fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
682 int conf_write_autoconf(void)
691 sym_clear_all_valid();
693 file_write_dep("include/config/auto.conf.cmd");
695 if (conf_split_config())
698 out = fopen(".tmpconfig", "w");
702 out_h = fopen(".tmpconfig.h", "w");
708 sym = sym_lookup("PROJECTVERSION", 0);
712 "# Automatically generated make config: don't edit\n"
713 "# "PROJECT_NAME" version: %s\n"
716 sym_get_string_value(sym), ctime(&now));
717 fprintf(out_h, "/*\n"
718 " * Automatically generated C config: don't edit\n"
719 " * "PROJECT_NAME" version: %s\n"
722 "#define AUTOCONF_INCLUDED\n",
723 sym_get_string_value(sym), ctime(&now));
725 for_all_symbols(i, sym) {
727 if (!(sym->flags & SYMBOL_WRITE) || !sym->name)
732 switch (sym_get_tristate_value(sym)) {
736 fprintf(out, "CT_%s=m\n", sym->name);
737 fprintf(out_h, "#define CT_%s_MODULE 1\n", sym->name);
740 fprintf(out, "CT_%s=y\n", sym->name);
741 fprintf(out_h, "#define CT_%s 1\n", sym->name);
746 str = sym_get_string_value(sym);
747 fprintf(out, "CT_%s=\"", sym->name);
748 fprintf(out_h, "#define CT_%s \"", sym->name);
750 l = strcspn(str, "\"\\");
752 fwrite(str, l, 1, out);
753 fwrite(str, l, 1, out_h);
758 fprintf(out, "\\%c", *str);
759 fprintf(out_h, "\\%c", *str);
763 fputs("\"\n", out_h);
766 str = sym_get_string_value(sym);
767 if (str[0] != '0' || (str[1] != 'x' && str[1] != 'X')) {
768 fprintf(out, "CT_%s=%s\n", sym->name, str);
769 fprintf(out_h, "#define CT_%s 0x%s\n", sym->name, str);
773 str = sym_get_string_value(sym);
774 fprintf(out, "CT_%s=%s\n", sym->name, str);
775 fprintf(out_h, "#define CT_%s %s\n", sym->name, str);
784 name = getenv("KCONFIG_AUTOHEADER");
786 name = "include/linux/autoconf.h";
787 if (rename(".tmpconfig.h", name))
789 name = getenv("KCONFIG_AUTOCONFIG");
791 name = "include/config/auto.conf";
793 * This must be the last step, kbuild has a dependency on auto.conf
794 * and this marks the successful completion of the previous steps.
796 if (rename(".tmpconfig", name))