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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /scripts/kconfig/conf.c | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | scripts/kconfig/conf.c | 921 |
1 files changed, 921 insertions, 0 deletions
diff --git a/scripts/kconfig/conf.c b/scripts/kconfig/conf.c new file mode 100644 index 000000000..33d19e419 --- /dev/null +++ b/scripts/kconfig/conf.c @@ -0,0 +1,921 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org> + */ + +#include <ctype.h> +#include <limits.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <time.h> +#include <unistd.h> +#include <getopt.h> +#include <sys/time.h> +#include <errno.h> + +#include "lkc.h" + +static void conf(struct menu *menu); +static void check_conf(struct menu *menu); + +enum input_mode { + oldaskconfig, + syncconfig, + oldconfig, + allnoconfig, + allyesconfig, + allmodconfig, + alldefconfig, + randconfig, + defconfig, + savedefconfig, + listnewconfig, + helpnewconfig, + olddefconfig, + yes2modconfig, + mod2yesconfig, + mod2noconfig, +}; +static enum input_mode input_mode = oldaskconfig; +static int input_mode_opt; +static int indent = 1; +static int tty_stdio; +static int sync_kconfig; +static int conf_cnt; +static char line[PATH_MAX]; +static struct menu *rootEntry; + +static void print_help(struct menu *menu) +{ + struct gstr help = str_new(); + + menu_get_ext_help(menu, &help); + + printf("\n%s\n", str_get(&help)); + str_free(&help); +} + +static void strip(char *str) +{ + char *p = str; + int l; + + while ((isspace(*p))) + p++; + l = strlen(p); + if (p != str) + memmove(str, p, l + 1); + if (!l) + return; + p = str + l - 1; + while ((isspace(*p))) + *p-- = 0; +} + +/* Helper function to facilitate fgets() by Jean Sacren. */ +static void xfgets(char *str, int size, FILE *in) +{ + if (!fgets(str, size, in)) + fprintf(stderr, "\nError in reading or end of file.\n"); + + if (!tty_stdio) + printf("%s", str); +} + +static void set_randconfig_seed(void) +{ + unsigned int seed; + char *env; + bool seed_set = false; + + env = getenv("KCONFIG_SEED"); + if (env && *env) { + char *endp; + + seed = strtol(env, &endp, 0); + if (*endp == '\0') + seed_set = true; + } + + if (!seed_set) { + struct timeval now; + + /* + * Use microseconds derived seed, compensate for systems where it may + * be zero. + */ + gettimeofday(&now, NULL); + seed = (now.tv_sec + 1) * (now.tv_usec + 1); + } + + printf("KCONFIG_SEED=0x%X\n", seed); + srand(seed); +} + +static bool randomize_choice_values(struct symbol *csym) +{ + struct property *prop; + struct symbol *sym; + struct expr *e; + int cnt, def; + + /* + * If choice is mod then we may have more items selected + * and if no then no-one. + * In both cases stop. + */ + if (csym->curr.tri != yes) + return false; + + prop = sym_get_choice_prop(csym); + + /* count entries in choice block */ + cnt = 0; + expr_list_for_each_sym(prop->expr, e, sym) + cnt++; + + /* + * find a random value and set it to yes, + * set the rest to no so we have only one set + */ + def = rand() % cnt; + + cnt = 0; + expr_list_for_each_sym(prop->expr, e, sym) { + if (def == cnt++) { + sym->def[S_DEF_USER].tri = yes; + csym->def[S_DEF_USER].val = sym; + } else { + sym->def[S_DEF_USER].tri = no; + } + sym->flags |= SYMBOL_DEF_USER; + /* clear VALID to get value calculated */ + sym->flags &= ~SYMBOL_VALID; + } + csym->flags |= SYMBOL_DEF_USER; + /* clear VALID to get value calculated */ + csym->flags &= ~SYMBOL_VALID; + + return true; +} + +enum conf_def_mode { + def_default, + def_yes, + def_mod, + def_no, + def_random +}; + +static bool conf_set_all_new_symbols(enum conf_def_mode mode) +{ + struct symbol *sym, *csym; + int i, cnt; + /* + * can't go as the default in switch-case below, otherwise gcc whines + * about -Wmaybe-uninitialized + */ + int pby = 50; /* probability of bool = y */ + int pty = 33; /* probability of tristate = y */ + int ptm = 33; /* probability of tristate = m */ + bool has_changed = false; + + if (mode == def_random) { + int n, p[3]; + char *env = getenv("KCONFIG_PROBABILITY"); + + n = 0; + while (env && *env) { + char *endp; + int tmp = strtol(env, &endp, 10); + + if (tmp >= 0 && tmp <= 100) { + p[n++] = tmp; + } else { + errno = ERANGE; + perror("KCONFIG_PROBABILITY"); + exit(1); + } + env = (*endp == ':') ? endp + 1 : endp; + if (n >= 3) + break; + } + switch (n) { + case 1: + pby = p[0]; + ptm = pby / 2; + pty = pby - ptm; + break; + case 2: + pty = p[0]; + ptm = p[1]; + pby = pty + ptm; + break; + case 3: + pby = p[0]; + pty = p[1]; + ptm = p[2]; + break; + } + + if (pty + ptm > 100) { + errno = ERANGE; + perror("KCONFIG_PROBABILITY"); + exit(1); + } + } + + for_all_symbols(i, sym) { + if (sym_has_value(sym) || sym->flags & SYMBOL_VALID) + continue; + switch (sym_get_type(sym)) { + case S_BOOLEAN: + case S_TRISTATE: + has_changed = true; + switch (mode) { + case def_yes: + sym->def[S_DEF_USER].tri = yes; + break; + case def_mod: + sym->def[S_DEF_USER].tri = mod; + break; + case def_no: + sym->def[S_DEF_USER].tri = no; + break; + case def_random: + sym->def[S_DEF_USER].tri = no; + cnt = rand() % 100; + if (sym->type == S_TRISTATE) { + if (cnt < pty) + sym->def[S_DEF_USER].tri = yes; + else if (cnt < pty + ptm) + sym->def[S_DEF_USER].tri = mod; + } else if (cnt < pby) + sym->def[S_DEF_USER].tri = yes; + break; + default: + continue; + } + if (!(sym_is_choice(sym) && mode == def_random)) + sym->flags |= SYMBOL_DEF_USER; + break; + default: + break; + } + + } + + sym_clear_all_valid(); + + /* + * We have different type of choice blocks. + * If curr.tri equals to mod then we can select several + * choice symbols in one block. + * In this case we do nothing. + * If curr.tri equals yes then only one symbol can be + * selected in a choice block and we set it to yes, + * and the rest to no. + */ + if (mode != def_random) { + for_all_symbols(i, csym) { + if ((sym_is_choice(csym) && !sym_has_value(csym)) || + sym_is_choice_value(csym)) + csym->flags |= SYMBOL_NEED_SET_CHOICE_VALUES; + } + } + + for_all_symbols(i, csym) { + if (sym_has_value(csym) || !sym_is_choice(csym)) + continue; + + sym_calc_value(csym); + if (mode == def_random) + has_changed |= randomize_choice_values(csym); + else { + set_all_choice_values(csym); + has_changed = true; + } + } + + return has_changed; +} + +static void conf_rewrite_tristates(tristate old_val, tristate new_val) +{ + struct symbol *sym; + int i; + + for_all_symbols(i, sym) { + if (sym_get_type(sym) == S_TRISTATE && + sym->def[S_DEF_USER].tri == old_val) + sym->def[S_DEF_USER].tri = new_val; + } + sym_clear_all_valid(); +} + +static int conf_askvalue(struct symbol *sym, const char *def) +{ + if (!sym_has_value(sym)) + printf("(NEW) "); + + line[0] = '\n'; + line[1] = 0; + + if (!sym_is_changeable(sym)) { + printf("%s\n", def); + line[0] = '\n'; + line[1] = 0; + return 0; + } + + switch (input_mode) { + case oldconfig: + case syncconfig: + if (sym_has_value(sym)) { + printf("%s\n", def); + return 0; + } + /* fall through */ + default: + fflush(stdout); + xfgets(line, sizeof(line), stdin); + break; + } + + return 1; +} + +static int conf_string(struct menu *menu) +{ + struct symbol *sym = menu->sym; + const char *def; + + while (1) { + printf("%*s%s ", indent - 1, "", menu->prompt->text); + printf("(%s) ", sym->name); + def = sym_get_string_value(sym); + if (def) + printf("[%s] ", def); + if (!conf_askvalue(sym, def)) + return 0; + switch (line[0]) { + case '\n': + break; + case '?': + /* print help */ + if (line[1] == '\n') { + print_help(menu); + def = NULL; + break; + } + /* fall through */ + default: + line[strlen(line)-1] = 0; + def = line; + } + if (def && sym_set_string_value(sym, def)) + return 0; + } +} + +static int conf_sym(struct menu *menu) +{ + struct symbol *sym = menu->sym; + tristate oldval, newval; + + while (1) { + printf("%*s%s ", indent - 1, "", menu->prompt->text); + if (sym->name) + printf("(%s) ", sym->name); + putchar('['); + oldval = sym_get_tristate_value(sym); + switch (oldval) { + case no: + putchar('N'); + break; + case mod: + putchar('M'); + break; + case yes: + putchar('Y'); + break; + } + if (oldval != no && sym_tristate_within_range(sym, no)) + printf("/n"); + if (oldval != mod && sym_tristate_within_range(sym, mod)) + printf("/m"); + if (oldval != yes && sym_tristate_within_range(sym, yes)) + printf("/y"); + printf("/?] "); + if (!conf_askvalue(sym, sym_get_string_value(sym))) + return 0; + strip(line); + + switch (line[0]) { + case 'n': + case 'N': + newval = no; + if (!line[1] || !strcmp(&line[1], "o")) + break; + continue; + case 'm': + case 'M': + newval = mod; + if (!line[1]) + break; + continue; + case 'y': + case 'Y': + newval = yes; + if (!line[1] || !strcmp(&line[1], "es")) + break; + continue; + case 0: + newval = oldval; + break; + case '?': + goto help; + default: + continue; + } + if (sym_set_tristate_value(sym, newval)) + return 0; +help: + print_help(menu); + } +} + +static int conf_choice(struct menu *menu) +{ + struct symbol *sym, *def_sym; + struct menu *child; + bool is_new; + + sym = menu->sym; + is_new = !sym_has_value(sym); + if (sym_is_changeable(sym)) { + conf_sym(menu); + sym_calc_value(sym); + switch (sym_get_tristate_value(sym)) { + case no: + return 1; + case mod: + return 0; + case yes: + break; + } + } else { + switch (sym_get_tristate_value(sym)) { + case no: + return 1; + case mod: + printf("%*s%s\n", indent - 1, "", menu_get_prompt(menu)); + return 0; + case yes: + break; + } + } + + while (1) { + int cnt, def; + + printf("%*s%s\n", indent - 1, "", menu_get_prompt(menu)); + def_sym = sym_get_choice_value(sym); + cnt = def = 0; + line[0] = 0; + for (child = menu->list; child; child = child->next) { + if (!menu_is_visible(child)) + continue; + if (!child->sym) { + printf("%*c %s\n", indent, '*', menu_get_prompt(child)); + continue; + } + cnt++; + if (child->sym == def_sym) { + def = cnt; + printf("%*c", indent, '>'); + } else + printf("%*c", indent, ' '); + printf(" %d. %s", cnt, menu_get_prompt(child)); + if (child->sym->name) + printf(" (%s)", child->sym->name); + if (!sym_has_value(child->sym)) + printf(" (NEW)"); + printf("\n"); + } + 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)) + continue; + if (!--cnt) + break; + } + if (!child) + continue; + if (line[0] && line[strlen(line) - 1] == '?') { + print_help(child); + continue; + } + sym_set_tristate_value(child->sym, yes); + 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; +} |