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![Josh Triplett](/assets/img/avatar_default.png)
When converting a modular kernel to a monolithic kernel, once the kernel works without loading any modules, this helps to quickly disable all the modules before turning off module support entirely. Refactor conf_rewrite_mod_or_yes to a more general conf_rewrite_tristates that accepts an old and new state. Signed-off-by: Josh Triplett <josh@joshtriplett.org> Tested-by: Björn Töpel <bjorn@kernel.org> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
921 lines
20 KiB
C
921 lines
20 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
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*/
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#include <ctype.h>
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#include <limits.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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#include <getopt.h>
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#include <sys/time.h>
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#include <errno.h>
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#include "lkc.h"
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static void conf(struct menu *menu);
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static void check_conf(struct menu *menu);
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enum input_mode {
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oldaskconfig,
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syncconfig,
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oldconfig,
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allnoconfig,
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allyesconfig,
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allmodconfig,
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alldefconfig,
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randconfig,
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defconfig,
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savedefconfig,
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listnewconfig,
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helpnewconfig,
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olddefconfig,
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yes2modconfig,
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mod2yesconfig,
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mod2noconfig,
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};
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static enum input_mode input_mode = oldaskconfig;
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static int input_mode_opt;
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static int indent = 1;
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static int tty_stdio;
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static int sync_kconfig;
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static int conf_cnt;
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static char line[PATH_MAX];
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static struct menu *rootEntry;
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static void print_help(struct menu *menu)
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{
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struct gstr help = str_new();
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menu_get_ext_help(menu, &help);
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printf("\n%s\n", str_get(&help));
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str_free(&help);
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}
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static void strip(char *str)
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{
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char *p = str;
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int l;
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while ((isspace(*p)))
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p++;
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l = strlen(p);
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if (p != str)
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memmove(str, p, l + 1);
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if (!l)
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return;
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p = str + l - 1;
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while ((isspace(*p)))
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*p-- = 0;
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}
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/* Helper function to facilitate fgets() by Jean Sacren. */
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static void xfgets(char *str, int size, FILE *in)
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{
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if (!fgets(str, size, in))
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fprintf(stderr, "\nError in reading or end of file.\n");
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if (!tty_stdio)
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printf("%s", str);
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}
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static void set_randconfig_seed(void)
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{
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unsigned int seed;
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char *env;
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bool seed_set = false;
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env = getenv("KCONFIG_SEED");
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if (env && *env) {
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char *endp;
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seed = strtol(env, &endp, 0);
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if (*endp == '\0')
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seed_set = true;
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}
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if (!seed_set) {
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struct timeval now;
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/*
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* Use microseconds derived seed, compensate for systems where it may
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* be zero.
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*/
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gettimeofday(&now, NULL);
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seed = (now.tv_sec + 1) * (now.tv_usec + 1);
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}
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printf("KCONFIG_SEED=0x%X\n", seed);
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srand(seed);
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}
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static bool randomize_choice_values(struct symbol *csym)
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{
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struct property *prop;
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struct symbol *sym;
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struct expr *e;
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int cnt, def;
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/*
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* If choice is mod then we may have more items selected
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* and if no then no-one.
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* In both cases stop.
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*/
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if (csym->curr.tri != yes)
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return false;
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prop = sym_get_choice_prop(csym);
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/* count entries in choice block */
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cnt = 0;
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expr_list_for_each_sym(prop->expr, e, sym)
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cnt++;
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/*
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* find a random value and set it to yes,
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* set the rest to no so we have only one set
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*/
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def = rand() % cnt;
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cnt = 0;
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expr_list_for_each_sym(prop->expr, e, sym) {
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if (def == cnt++) {
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sym->def[S_DEF_USER].tri = yes;
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csym->def[S_DEF_USER].val = sym;
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} else {
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sym->def[S_DEF_USER].tri = no;
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}
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sym->flags |= SYMBOL_DEF_USER;
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/* clear VALID to get value calculated */
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sym->flags &= ~SYMBOL_VALID;
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}
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csym->flags |= SYMBOL_DEF_USER;
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/* clear VALID to get value calculated */
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csym->flags &= ~SYMBOL_VALID;
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return true;
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}
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enum conf_def_mode {
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def_default,
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def_yes,
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def_mod,
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def_no,
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def_random
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};
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static bool conf_set_all_new_symbols(enum conf_def_mode mode)
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{
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struct symbol *sym, *csym;
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int i, cnt;
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/*
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* can't go as the default in switch-case below, otherwise gcc whines
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* about -Wmaybe-uninitialized
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*/
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int pby = 50; /* probability of bool = y */
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int pty = 33; /* probability of tristate = y */
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int ptm = 33; /* probability of tristate = m */
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bool has_changed = false;
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if (mode == def_random) {
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int n, p[3];
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char *env = getenv("KCONFIG_PROBABILITY");
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n = 0;
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while (env && *env) {
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char *endp;
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int tmp = strtol(env, &endp, 10);
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if (tmp >= 0 && tmp <= 100) {
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p[n++] = tmp;
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} else {
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errno = ERANGE;
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perror("KCONFIG_PROBABILITY");
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exit(1);
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}
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env = (*endp == ':') ? endp + 1 : endp;
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if (n >= 3)
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break;
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}
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switch (n) {
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case 1:
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pby = p[0];
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ptm = pby / 2;
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pty = pby - ptm;
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break;
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case 2:
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pty = p[0];
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ptm = p[1];
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pby = pty + ptm;
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break;
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case 3:
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pby = p[0];
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pty = p[1];
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ptm = p[2];
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break;
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}
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if (pty + ptm > 100) {
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errno = ERANGE;
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perror("KCONFIG_PROBABILITY");
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exit(1);
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}
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}
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for_all_symbols(i, sym) {
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if (sym_has_value(sym) || sym->flags & SYMBOL_VALID)
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continue;
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switch (sym_get_type(sym)) {
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case S_BOOLEAN:
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case S_TRISTATE:
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has_changed = true;
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switch (mode) {
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case def_yes:
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sym->def[S_DEF_USER].tri = yes;
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break;
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case def_mod:
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sym->def[S_DEF_USER].tri = mod;
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break;
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case def_no:
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sym->def[S_DEF_USER].tri = no;
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break;
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case def_random:
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sym->def[S_DEF_USER].tri = no;
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cnt = rand() % 100;
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if (sym->type == S_TRISTATE) {
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if (cnt < pty)
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sym->def[S_DEF_USER].tri = yes;
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else if (cnt < pty + ptm)
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sym->def[S_DEF_USER].tri = mod;
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} else if (cnt < pby)
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sym->def[S_DEF_USER].tri = yes;
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break;
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default:
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continue;
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}
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if (!(sym_is_choice(sym) && mode == def_random))
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sym->flags |= SYMBOL_DEF_USER;
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break;
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default:
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break;
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}
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}
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sym_clear_all_valid();
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/*
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* We have different type of choice blocks.
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* If curr.tri equals to mod then we can select several
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* choice symbols in one block.
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* In this case we do nothing.
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* If curr.tri equals yes then only one symbol can be
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* selected in a choice block and we set it to yes,
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* and the rest to no.
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*/
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if (mode != def_random) {
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for_all_symbols(i, csym) {
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if ((sym_is_choice(csym) && !sym_has_value(csym)) ||
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sym_is_choice_value(csym))
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csym->flags |= SYMBOL_NEED_SET_CHOICE_VALUES;
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}
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}
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for_all_symbols(i, csym) {
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if (sym_has_value(csym) || !sym_is_choice(csym))
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continue;
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sym_calc_value(csym);
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if (mode == def_random)
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has_changed |= randomize_choice_values(csym);
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else {
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set_all_choice_values(csym);
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has_changed = true;
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}
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}
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return has_changed;
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}
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static void conf_rewrite_tristates(tristate old_val, tristate new_val)
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{
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struct symbol *sym;
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int i;
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for_all_symbols(i, sym) {
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if (sym_get_type(sym) == S_TRISTATE &&
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sym->def[S_DEF_USER].tri == old_val)
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sym->def[S_DEF_USER].tri = new_val;
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}
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sym_clear_all_valid();
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}
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static int conf_askvalue(struct symbol *sym, const char *def)
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{
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if (!sym_has_value(sym))
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printf("(NEW) ");
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line[0] = '\n';
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line[1] = 0;
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if (!sym_is_changeable(sym)) {
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printf("%s\n", def);
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line[0] = '\n';
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line[1] = 0;
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return 0;
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}
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switch (input_mode) {
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case oldconfig:
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case syncconfig:
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if (sym_has_value(sym)) {
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printf("%s\n", def);
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return 0;
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}
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/* fall through */
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default:
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fflush(stdout);
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xfgets(line, sizeof(line), stdin);
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break;
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}
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return 1;
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}
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static int conf_string(struct menu *menu)
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{
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struct symbol *sym = menu->sym;
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const char *def;
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while (1) {
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printf("%*s%s ", indent - 1, "", menu->prompt->text);
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printf("(%s) ", sym->name);
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def = sym_get_string_value(sym);
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if (def)
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printf("[%s] ", def);
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if (!conf_askvalue(sym, def))
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return 0;
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switch (line[0]) {
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case '\n':
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break;
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case '?':
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/* print help */
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if (line[1] == '\n') {
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print_help(menu);
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def = NULL;
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break;
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}
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/* fall through */
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default:
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line[strlen(line)-1] = 0;
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def = line;
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}
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if (def && sym_set_string_value(sym, def))
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return 0;
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}
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}
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static int conf_sym(struct menu *menu)
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{
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struct symbol *sym = menu->sym;
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tristate oldval, newval;
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while (1) {
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printf("%*s%s ", indent - 1, "", menu->prompt->text);
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if (sym->name)
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printf("(%s) ", sym->name);
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putchar('[');
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oldval = sym_get_tristate_value(sym);
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switch (oldval) {
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case no:
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putchar('N');
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break;
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case mod:
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putchar('M');
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break;
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case yes:
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putchar('Y');
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break;
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}
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if (oldval != no && sym_tristate_within_range(sym, no))
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printf("/n");
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if (oldval != mod && sym_tristate_within_range(sym, mod))
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printf("/m");
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if (oldval != yes && sym_tristate_within_range(sym, yes))
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printf("/y");
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printf("/?] ");
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if (!conf_askvalue(sym, sym_get_string_value(sym)))
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return 0;
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strip(line);
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switch (line[0]) {
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case 'n':
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case 'N':
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newval = no;
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if (!line[1] || !strcmp(&line[1], "o"))
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break;
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continue;
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case 'm':
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case 'M':
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newval = mod;
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if (!line[1])
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break;
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continue;
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case 'y':
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case 'Y':
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newval = yes;
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if (!line[1] || !strcmp(&line[1], "es"))
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break;
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continue;
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case 0:
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newval = oldval;
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break;
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case '?':
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goto help;
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default:
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continue;
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}
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if (sym_set_tristate_value(sym, newval))
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return 0;
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help:
|
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print_help(menu);
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}
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}
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static int conf_choice(struct menu *menu)
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{
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struct symbol *sym, *def_sym;
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struct menu *child;
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bool is_new;
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sym = menu->sym;
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is_new = !sym_has_value(sym);
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if (sym_is_changeable(sym)) {
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conf_sym(menu);
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sym_calc_value(sym);
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switch (sym_get_tristate_value(sym)) {
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case no:
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return 1;
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case mod:
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return 0;
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case yes:
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break;
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}
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} else {
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switch (sym_get_tristate_value(sym)) {
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case no:
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return 1;
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case mod:
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printf("%*s%s\n", indent - 1, "", menu_get_prompt(menu));
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return 0;
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case yes:
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break;
|
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}
|
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}
|
|
|
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while (1) {
|
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int cnt, def;
|
|
|
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printf("%*s%s\n", indent - 1, "", menu_get_prompt(menu));
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def_sym = sym_get_choice_value(sym);
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cnt = def = 0;
|
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line[0] = 0;
|
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for (child = menu->list; child; child = child->next) {
|
|
if (!menu_is_visible(child))
|
|
continue;
|
|
if (!child->sym) {
|
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printf("%*c %s\n", indent, '*', menu_get_prompt(child));
|
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continue;
|
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}
|
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cnt++;
|
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if (child->sym == def_sym) {
|
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def = cnt;
|
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printf("%*c", indent, '>');
|
|
} else
|
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printf("%*c", indent, ' ');
|
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printf(" %d. %s", cnt, menu_get_prompt(child));
|
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if (child->sym->name)
|
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printf(" (%s)", child->sym->name);
|
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if (!sym_has_value(child->sym))
|
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printf(" (NEW)");
|
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printf("\n");
|
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}
|
|
printf("%*schoice", indent - 1, "");
|
|
if (cnt == 1) {
|
|
printf("[1]: 1\n");
|
|
goto conf_childs;
|
|
}
|
|
printf("[1-%d?]: ", cnt);
|
|
switch (input_mode) {
|
|
case oldconfig:
|
|
case syncconfig:
|
|
if (!is_new) {
|
|
cnt = def;
|
|
printf("%d\n", cnt);
|
|
break;
|
|
}
|
|
/* fall through */
|
|
case oldaskconfig:
|
|
fflush(stdout);
|
|
xfgets(line, sizeof(line), stdin);
|
|
strip(line);
|
|
if (line[0] == '?') {
|
|
print_help(menu);
|
|
continue;
|
|
}
|
|
if (!line[0])
|
|
cnt = def;
|
|
else if (isdigit(line[0]))
|
|
cnt = atoi(line);
|
|
else
|
|
continue;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
conf_childs:
|
|
for (child = menu->list; child; child = child->next) {
|
|
if (!child->sym || !menu_is_visible(child))
|
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continue;
|
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if (!--cnt)
|
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break;
|
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}
|
|
if (!child)
|
|
continue;
|
|
if (line[0] && line[strlen(line) - 1] == '?') {
|
|
print_help(child);
|
|
continue;
|
|
}
|
|
sym_set_choice_value(sym, child->sym);
|
|
for (child = child->list; child; child = child->next) {
|
|
indent += 2;
|
|
conf(child);
|
|
indent -= 2;
|
|
}
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
static void conf(struct menu *menu)
|
|
{
|
|
struct symbol *sym;
|
|
struct property *prop;
|
|
struct menu *child;
|
|
|
|
if (!menu_is_visible(menu))
|
|
return;
|
|
|
|
sym = menu->sym;
|
|
prop = menu->prompt;
|
|
if (prop) {
|
|
const char *prompt;
|
|
|
|
switch (prop->type) {
|
|
case P_MENU:
|
|
/*
|
|
* Except in oldaskconfig mode, we show only menus that
|
|
* contain new symbols.
|
|
*/
|
|
if (input_mode != oldaskconfig && rootEntry != menu) {
|
|
check_conf(menu);
|
|
return;
|
|
}
|
|
/* fall through */
|
|
case P_COMMENT:
|
|
prompt = menu_get_prompt(menu);
|
|
if (prompt)
|
|
printf("%*c\n%*c %s\n%*c\n",
|
|
indent, '*',
|
|
indent, '*', prompt,
|
|
indent, '*');
|
|
default:
|
|
;
|
|
}
|
|
}
|
|
|
|
if (!sym)
|
|
goto conf_childs;
|
|
|
|
if (sym_is_choice(sym)) {
|
|
conf_choice(menu);
|
|
if (sym->curr.tri != mod)
|
|
return;
|
|
goto conf_childs;
|
|
}
|
|
|
|
switch (sym->type) {
|
|
case S_INT:
|
|
case S_HEX:
|
|
case S_STRING:
|
|
conf_string(menu);
|
|
break;
|
|
default:
|
|
conf_sym(menu);
|
|
break;
|
|
}
|
|
|
|
conf_childs:
|
|
if (sym)
|
|
indent += 2;
|
|
for (child = menu->list; child; child = child->next)
|
|
conf(child);
|
|
if (sym)
|
|
indent -= 2;
|
|
}
|
|
|
|
static void check_conf(struct menu *menu)
|
|
{
|
|
struct symbol *sym;
|
|
struct menu *child;
|
|
|
|
if (!menu_is_visible(menu))
|
|
return;
|
|
|
|
sym = menu->sym;
|
|
if (sym && !sym_has_value(sym) &&
|
|
(sym_is_changeable(sym) ||
|
|
(sym_is_choice(sym) && sym_get_tristate_value(sym) == yes))) {
|
|
|
|
switch (input_mode) {
|
|
case listnewconfig:
|
|
if (sym->name)
|
|
print_symbol_for_listconfig(sym);
|
|
break;
|
|
case helpnewconfig:
|
|
printf("-----\n");
|
|
print_help(menu);
|
|
printf("-----\n");
|
|
break;
|
|
default:
|
|
if (!conf_cnt++)
|
|
printf("*\n* Restart config...\n*\n");
|
|
rootEntry = menu_get_parent_menu(menu);
|
|
conf(rootEntry);
|
|
break;
|
|
}
|
|
}
|
|
|
|
for (child = menu->list; child; child = child->next)
|
|
check_conf(child);
|
|
}
|
|
|
|
static const struct option long_opts[] = {
|
|
{"help", no_argument, NULL, 'h'},
|
|
{"silent", no_argument, NULL, 's'},
|
|
{"oldaskconfig", no_argument, &input_mode_opt, oldaskconfig},
|
|
{"oldconfig", no_argument, &input_mode_opt, oldconfig},
|
|
{"syncconfig", no_argument, &input_mode_opt, syncconfig},
|
|
{"defconfig", required_argument, &input_mode_opt, defconfig},
|
|
{"savedefconfig", required_argument, &input_mode_opt, savedefconfig},
|
|
{"allnoconfig", no_argument, &input_mode_opt, allnoconfig},
|
|
{"allyesconfig", no_argument, &input_mode_opt, allyesconfig},
|
|
{"allmodconfig", no_argument, &input_mode_opt, allmodconfig},
|
|
{"alldefconfig", no_argument, &input_mode_opt, alldefconfig},
|
|
{"randconfig", no_argument, &input_mode_opt, randconfig},
|
|
{"listnewconfig", no_argument, &input_mode_opt, listnewconfig},
|
|
{"helpnewconfig", no_argument, &input_mode_opt, helpnewconfig},
|
|
{"olddefconfig", no_argument, &input_mode_opt, olddefconfig},
|
|
{"yes2modconfig", no_argument, &input_mode_opt, yes2modconfig},
|
|
{"mod2yesconfig", no_argument, &input_mode_opt, mod2yesconfig},
|
|
{"mod2noconfig", no_argument, &input_mode_opt, mod2noconfig},
|
|
{NULL, 0, NULL, 0}
|
|
};
|
|
|
|
static void conf_usage(const char *progname)
|
|
{
|
|
printf("Usage: %s [options] <kconfig-file>\n", progname);
|
|
printf("\n");
|
|
printf("Generic options:\n");
|
|
printf(" -h, --help Print this message and exit.\n");
|
|
printf(" -s, --silent Do not print log.\n");
|
|
printf("\n");
|
|
printf("Mode options:\n");
|
|
printf(" --listnewconfig List new options\n");
|
|
printf(" --helpnewconfig List new options and help text\n");
|
|
printf(" --oldaskconfig Start a new configuration using a line-oriented program\n");
|
|
printf(" --oldconfig Update a configuration using a provided .config as base\n");
|
|
printf(" --syncconfig Similar to oldconfig but generates configuration in\n"
|
|
" include/{generated/,config/}\n");
|
|
printf(" --olddefconfig Same as oldconfig but sets new symbols to their default value\n");
|
|
printf(" --defconfig <file> New config with default defined in <file>\n");
|
|
printf(" --savedefconfig <file> Save the minimal current configuration to <file>\n");
|
|
printf(" --allnoconfig New config where all options are answered with no\n");
|
|
printf(" --allyesconfig New config where all options are answered with yes\n");
|
|
printf(" --allmodconfig New config where all options are answered with mod\n");
|
|
printf(" --alldefconfig New config with all symbols set to default\n");
|
|
printf(" --randconfig New config with random answer to all options\n");
|
|
printf(" --yes2modconfig Change answers from yes to mod if possible\n");
|
|
printf(" --mod2yesconfig Change answers from mod to yes if possible\n");
|
|
printf(" --mod2noconfig Change answers from mod to no if possible\n");
|
|
printf(" (If none of the above is given, --oldaskconfig is the default)\n");
|
|
}
|
|
|
|
int main(int ac, char **av)
|
|
{
|
|
const char *progname = av[0];
|
|
int opt;
|
|
const char *name, *defconfig_file = NULL /* gcc uninit */;
|
|
int no_conf_write = 0;
|
|
|
|
tty_stdio = isatty(0) && isatty(1);
|
|
|
|
while ((opt = getopt_long(ac, av, "hs", long_opts, NULL)) != -1) {
|
|
switch (opt) {
|
|
case 'h':
|
|
conf_usage(progname);
|
|
exit(1);
|
|
break;
|
|
case 's':
|
|
conf_set_message_callback(NULL);
|
|
break;
|
|
case 0:
|
|
input_mode = input_mode_opt;
|
|
switch (input_mode) {
|
|
case syncconfig:
|
|
/*
|
|
* syncconfig is invoked during the build stage.
|
|
* Suppress distracting
|
|
* "configuration written to ..."
|
|
*/
|
|
conf_set_message_callback(NULL);
|
|
sync_kconfig = 1;
|
|
break;
|
|
case defconfig:
|
|
case savedefconfig:
|
|
defconfig_file = optarg;
|
|
break;
|
|
case randconfig:
|
|
set_randconfig_seed();
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
if (ac == optind) {
|
|
fprintf(stderr, "%s: Kconfig file missing\n", av[0]);
|
|
conf_usage(progname);
|
|
exit(1);
|
|
}
|
|
conf_parse(av[optind]);
|
|
//zconfdump(stdout);
|
|
|
|
switch (input_mode) {
|
|
case defconfig:
|
|
if (conf_read(defconfig_file)) {
|
|
fprintf(stderr,
|
|
"***\n"
|
|
"*** Can't find default configuration \"%s\"!\n"
|
|
"***\n",
|
|
defconfig_file);
|
|
exit(1);
|
|
}
|
|
break;
|
|
case savedefconfig:
|
|
case syncconfig:
|
|
case oldaskconfig:
|
|
case oldconfig:
|
|
case listnewconfig:
|
|
case helpnewconfig:
|
|
case olddefconfig:
|
|
case yes2modconfig:
|
|
case mod2yesconfig:
|
|
case mod2noconfig:
|
|
conf_read(NULL);
|
|
break;
|
|
case allnoconfig:
|
|
case allyesconfig:
|
|
case allmodconfig:
|
|
case alldefconfig:
|
|
case randconfig:
|
|
name = getenv("KCONFIG_ALLCONFIG");
|
|
if (!name)
|
|
break;
|
|
if ((strcmp(name, "") != 0) && (strcmp(name, "1") != 0)) {
|
|
if (conf_read_simple(name, S_DEF_USER)) {
|
|
fprintf(stderr,
|
|
"*** Can't read seed configuration \"%s\"!\n",
|
|
name);
|
|
exit(1);
|
|
}
|
|
break;
|
|
}
|
|
switch (input_mode) {
|
|
case allnoconfig: name = "allno.config"; break;
|
|
case allyesconfig: name = "allyes.config"; break;
|
|
case allmodconfig: name = "allmod.config"; break;
|
|
case alldefconfig: name = "alldef.config"; break;
|
|
case randconfig: name = "allrandom.config"; break;
|
|
default: break;
|
|
}
|
|
if (conf_read_simple(name, S_DEF_USER) &&
|
|
conf_read_simple("all.config", S_DEF_USER)) {
|
|
fprintf(stderr,
|
|
"*** KCONFIG_ALLCONFIG set, but no \"%s\" or \"all.config\" file found\n",
|
|
name);
|
|
exit(1);
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (sync_kconfig) {
|
|
name = getenv("KCONFIG_NOSILENTUPDATE");
|
|
if (name && *name) {
|
|
if (conf_get_changed()) {
|
|
fprintf(stderr,
|
|
"\n*** The configuration requires explicit update.\n\n");
|
|
return 1;
|
|
}
|
|
no_conf_write = 1;
|
|
}
|
|
}
|
|
|
|
switch (input_mode) {
|
|
case allnoconfig:
|
|
conf_set_all_new_symbols(def_no);
|
|
break;
|
|
case allyesconfig:
|
|
conf_set_all_new_symbols(def_yes);
|
|
break;
|
|
case allmodconfig:
|
|
conf_set_all_new_symbols(def_mod);
|
|
break;
|
|
case alldefconfig:
|
|
conf_set_all_new_symbols(def_default);
|
|
break;
|
|
case randconfig:
|
|
/* Really nothing to do in this loop */
|
|
while (conf_set_all_new_symbols(def_random)) ;
|
|
break;
|
|
case defconfig:
|
|
conf_set_all_new_symbols(def_default);
|
|
break;
|
|
case savedefconfig:
|
|
break;
|
|
case yes2modconfig:
|
|
conf_rewrite_tristates(yes, mod);
|
|
break;
|
|
case mod2yesconfig:
|
|
conf_rewrite_tristates(mod, yes);
|
|
break;
|
|
case mod2noconfig:
|
|
conf_rewrite_tristates(mod, no);
|
|
break;
|
|
case oldaskconfig:
|
|
rootEntry = &rootmenu;
|
|
conf(&rootmenu);
|
|
input_mode = oldconfig;
|
|
/* fall through */
|
|
case oldconfig:
|
|
case listnewconfig:
|
|
case helpnewconfig:
|
|
case syncconfig:
|
|
/* Update until a loop caused no more changes */
|
|
do {
|
|
conf_cnt = 0;
|
|
check_conf(&rootmenu);
|
|
} while (conf_cnt);
|
|
break;
|
|
case olddefconfig:
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (input_mode == savedefconfig) {
|
|
if (conf_write_defconfig(defconfig_file)) {
|
|
fprintf(stderr, "n*** Error while saving defconfig to: %s\n\n",
|
|
defconfig_file);
|
|
return 1;
|
|
}
|
|
} else if (input_mode != listnewconfig && input_mode != helpnewconfig) {
|
|
if (!no_conf_write && conf_write(NULL)) {
|
|
fprintf(stderr, "\n*** Error during writing of the configuration.\n\n");
|
|
exit(1);
|
|
}
|
|
|
|
/*
|
|
* Create auto.conf if it does not exist.
|
|
* This prevents GNU Make 4.1 or older from emitting
|
|
* "include/config/auto.conf: No such file or directory"
|
|
* in the top-level Makefile
|
|
*
|
|
* syncconfig always creates or updates auto.conf because it is
|
|
* used during the build.
|
|
*/
|
|
if (conf_write_autoconf(sync_kconfig) && sync_kconfig) {
|
|
fprintf(stderr,
|
|
"\n*** Error during sync of the configuration.\n\n");
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|