| 1 | |
| 2 | * Copyright (C) 2002 Roman Zippel <[email protected]>
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| 3 | * Released under the terms of the GNU GPL v2.0.
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| 4 |
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| 5 |
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| 6 | #include <sys/stat.h>
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| 7 | #include <ctype.h>
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| 8 | #include <errno.h>
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| 9 | #include <fcntl.h>
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| 10 | #include <stdarg.h>
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| 11 | #include <stdio.h>
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| 12 | #include <stdlib.h>
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| 13 | #include <string.h>
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| 14 | #include <time.h>
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| 15 | #include <unistd.h>
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| 16 |
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| 17 | #include "lkc.h"
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| 18 |
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| 19 | struct conf_printer {
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| 20 | void (*print_symbol)(FILE *, struct symbol *, const char *, void *);
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| 21 | void (*print_comment)(FILE *, const char *, void *);
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| 22 | };
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| 23 |
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| 24 | static void conf_warning(const char *fmt, ...)
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| 25 | __attribute__ ((format (printf, 1, 2)));
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| 26 |
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| 27 | static void conf_message(const char *fmt, ...)
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| 28 | __attribute__ ((format (printf, 1, 2)));
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| 29 |
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| 30 | static const char *conf_filename;
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| 31 | static int conf_lineno, conf_warnings, conf_unsaved;
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| 32 |
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| 33 | const char conf_defname[] = "arch/$ARCH/defconfig";
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| 34 |
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| 35 | static void conf_warning(const char *fmt, ...)
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| 36 | {
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| 37 | va_list ap;
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| 38 | va_start(ap, fmt);
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| 39 | fprintf(stderr, "%s:%d:warning: ", conf_filename, conf_lineno);
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| 40 | vfprintf(stderr, fmt, ap);
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| 41 | fprintf(stderr, "\n");
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| 42 | va_end(ap);
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| 43 | conf_warnings++;
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| 44 | }
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| 45 |
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| 46 | static void conf_default_message_callback(const char *fmt, va_list ap)
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| 47 | {
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| 48 | printf("#\n# ");
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| 49 | vprintf(fmt, ap);
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| 50 | printf("\n#\n");
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| 51 | }
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| 52 |
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| 53 | static void (*conf_message_callback) (const char *fmt, va_list ap) =
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| 54 | conf_default_message_callback;
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| 55 | void conf_set_message_callback(void (*fn) (const char *fmt, va_list ap))
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| 56 | {
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| 57 | conf_message_callback = fn;
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| 58 | }
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| 59 |
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| 60 | static void conf_message(const char *fmt, ...)
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| 61 | {
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| 62 | va_list ap;
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| 63 |
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| 64 | va_start(ap, fmt);
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| 65 | if (conf_message_callback)
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| 66 | conf_message_callback(fmt, ap);
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| 67 | va_end(ap);
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| 68 | }
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| 69 |
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| 70 | const char *conf_get_configname(void)
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| 71 | {
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| 72 | char *name = getenv("KCONFIG_CONFIG");
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| 73 |
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| 74 | return name ? name : ".config";
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| 75 | }
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| 76 |
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| 77 | const char *conf_get_autoconfig_name(void)
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| 78 | {
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| 79 | char *name = getenv("KCONFIG_AUTOCONFIG");
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| 80 |
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| 81 | return name ? name : "include/config/auto.conf";
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| 82 | }
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| 83 |
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| 84 | static char *conf_expand_value(const char *in)
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| 85 | {
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| 86 | struct symbol *sym;
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| 87 | const char *src;
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| 88 | static char res_value[SYMBOL_MAXLENGTH];
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| 89 | char *dst, name[SYMBOL_MAXLENGTH];
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| 90 |
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| 91 | res_value[0] = 0;
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| 92 | dst = name;
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| 93 | while ((src = strchr(in, '$'))) {
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| 94 | strncat(res_value, in, src - in);
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| 95 | src++;
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| 96 | dst = name;
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| 97 | while (isalnum(*src) || *src == '_')
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| 98 | *dst++ = *src++;
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| 99 | *dst = 0;
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| 100 | sym = sym_lookup(name, 0);
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| 101 | sym_calc_value(sym);
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| 102 | strcat(res_value, sym_get_string_value(sym));
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| 103 | in = src;
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| 104 | }
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| 105 | strcat(res_value, in);
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| 106 |
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| 107 | return res_value;
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| 108 | }
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| 109 |
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| 110 | char *conf_get_default_confname(void)
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| 111 | {
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| 112 | struct stat buf;
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| 113 | static char fullname[PATH_MAX+1];
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| 114 | char *env, *name;
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| 115 |
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| 116 | name = conf_expand_value(conf_defname);
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| 117 | env = getenv(SRCTREE);
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| 118 | if (env) {
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| 119 | sprintf(fullname, "%s/%s", env, name);
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| 120 | if (!stat(fullname, &buf))
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| 121 | return fullname;
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| 122 | }
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| 123 | return name;
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| 124 | }
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| 125 |
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| 126 | static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p)
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| 127 | {
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| 128 | char *p2;
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| 129 |
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| 130 | switch (sym->type) {
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| 131 | case S_TRISTATE:
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| 132 | if (p[0] == 'm') {
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| 133 | sym->def[def].tri = mod;
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| 134 | sym->flags |= def_flags;
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| 135 | break;
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| 136 | }
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| 137 |
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| 138 | case S_BOOLEAN:
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| 139 | if (p[0] == 'y') {
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| 140 | sym->def[def].tri = yes;
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| 141 | sym->flags |= def_flags;
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| 142 | break;
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| 143 | }
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| 144 | if (p[0] == 'n') {
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| 145 | sym->def[def].tri = no;
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| 146 | sym->flags |= def_flags;
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| 147 | break;
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| 148 | }
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| 149 | if (def != S_DEF_AUTO)
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| 150 | conf_warning("symbol value '%s' invalid for %s",
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| 151 | p, sym->name);
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| 152 | return 1;
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| 153 | case S_OTHER:
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| 154 | if (*p != '"') {
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| 155 | for (p2 = p; *p2 && !isspace(*p2); p2++)
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| 156 | ;
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| 157 | sym->type = S_STRING;
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| 158 | goto done;
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| 159 | }
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| 160 |
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| 161 | case S_STRING:
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| 162 | if (*p++ != '"')
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| 163 | break;
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| 164 | for (p2 = p; (p2 = strpbrk(p2, "\"\\")); p2++) {
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| 165 | if (*p2 == '"') {
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| 166 | *p2 = 0;
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| 167 | break;
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| 168 | }
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| 169 | memmove(p2, p2 + 1, strlen(p2));
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| 170 | }
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| 171 | if (!p2) {
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| 172 | if (def != S_DEF_AUTO)
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| 173 | conf_warning("invalid string found");
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| 174 | return 1;
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| 175 | }
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| 176 |
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| 177 | case S_INT:
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| 178 | case S_HEX:
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| 179 | done:
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| 180 | if (sym_string_valid(sym, p)) {
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| 181 | sym->def[def].val = strdup(p);
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| 182 | sym->flags |= def_flags;
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| 183 | } else {
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| 184 | if (def != S_DEF_AUTO)
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| 185 | conf_warning("symbol value '%s' invalid for %s",
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| 186 | p, sym->name);
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| 187 | return 1;
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| 188 | }
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| 189 | break;
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| 190 | default:
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| 191 | ;
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| 192 | }
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| 193 | return 0;
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| 194 | }
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| 195 |
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| 196 | #define LINE_GROWTH 16
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| 197 | static int add_byte(int c, char **lineptr, size_t slen, size_t *n)
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| 198 | {
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| 199 | char *nline;
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| 200 | size_t new_size = slen + 1;
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| 201 | if (new_size > *n) {
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| 202 | new_size += LINE_GROWTH - 1;
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| 203 | new_size *= 2;
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| 204 | nline = realloc(*lineptr, new_size);
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| 205 | if (!nline)
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| 206 | return -1;
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| 207 |
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| 208 | *lineptr = nline;
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| 209 | *n = new_size;
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| 210 | }
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| 211 |
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| 212 | (*lineptr)[slen] = c;
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| 213 |
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| 214 | return 0;
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| 215 | }
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| 216 |
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| 217 | static ssize_t compat_getline(char **lineptr, size_t *n, FILE *stream)
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| 218 | {
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| 219 | char *line = *lineptr;
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| 220 | size_t slen = 0;
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| 221 |
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| 222 | for (;;) {
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| 223 | int c = getc(stream);
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| 224 |
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| 225 | switch (c) {
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| 226 | case '\n':
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| 227 | if (add_byte(c, &line, slen, n) < 0)
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| 228 | goto e_out;
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| 229 | slen++;
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| 230 |
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| 231 | case EOF:
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| 232 | if (add_byte('\0', &line, slen, n) < 0)
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| 233 | goto e_out;
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| 234 | *lineptr = line;
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| 235 | if (slen == 0)
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| 236 | return -1;
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| 237 | return slen;
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| 238 | default:
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| 239 | if (add_byte(c, &line, slen, n) < 0)
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| 240 | goto e_out;
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| 241 | slen++;
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| 242 | }
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| 243 | }
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| 244 |
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| 245 | e_out:
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| 246 | line[slen-1] = '\0';
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| 247 | *lineptr = line;
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| 248 | return -1;
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| 249 | }
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| 250 |
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| 251 | int conf_read_simple(const char *name, int def)
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| 252 | {
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| 253 | FILE *in = NULL;
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| 254 | char *line = NULL;
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| 255 | size_t line_asize = 0;
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| 256 | char *p, *p2;
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| 257 | struct symbol *sym;
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| 258 | int i, def_flags;
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| 259 |
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| 260 | if (name) {
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| 261 | in = zconf_fopen(name);
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| 262 | } else {
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| 263 | struct property *prop;
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| 264 |
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| 265 | name = conf_get_configname();
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| 266 | in = zconf_fopen(name);
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| 267 | if (in)
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| 268 | goto load;
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| 269 | sym_add_change_count(1);
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| 270 | if (!sym_defconfig_list)
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| 271 | return 1;
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| 272 |
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| 273 | for_all_defaults(sym_defconfig_list, prop) {
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| 274 | if (expr_calc_value(prop->visible.expr) == no ||
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| 275 | prop->expr->type != E_SYMBOL)
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| 276 | continue;
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| 277 | name = conf_expand_value(prop->expr->left.sym->name);
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| 278 | in = zconf_fopen(name);
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| 279 | if (in) {
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| 280 | conf_message(_("using defaults found in %s"),
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| 281 | name);
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| 282 | goto load;
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| 283 | }
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| 284 | }
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| 285 | }
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| 286 | if (!in)
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| 287 | return 1;
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| 288 |
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| 289 | load:
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| 290 | conf_filename = name;
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| 291 | conf_lineno = 0;
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| 292 | conf_warnings = 0;
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| 293 | conf_unsaved = 0;
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| 294 |
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| 295 | def_flags = SYMBOL_DEF << def;
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| 296 | for_all_symbols(i, sym) {
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| 297 | sym->flags |= SYMBOL_CHANGED;
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| 298 | sym->flags &= ~(def_flags|SYMBOL_VALID);
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| 299 | if (sym_is_choice(sym))
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| 300 | sym->flags |= def_flags;
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| 301 | switch (sym->type) {
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| 302 | case S_INT:
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| 303 | case S_HEX:
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| 304 | case S_STRING:
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| 305 | if (sym->def[def].val)
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| 306 | free(sym->def[def].val);
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| 307 |
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| 308 | default:
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| 309 | sym->def[def].val = NULL;
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| 310 | sym->def[def].tri = no;
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| 311 | }
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| 312 | }
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| 313 |
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| 314 | while (compat_getline(&line, &line_asize, in) != -1) {
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| 315 | conf_lineno++;
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| 316 | sym = NULL;
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| 317 | if (line[0] == '#') {
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| 318 | if (memcmp(line + 2, CONFIG_, strlen(CONFIG_)))
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| 319 | continue;
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| 320 | p = strchr(line + 2 + strlen(CONFIG_), ' ');
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| 321 | if (!p)
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| 322 | continue;
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| 323 | *p++ = 0;
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| 324 | if (strncmp(p, "is not set", 10))
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| 325 | continue;
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| 326 | if (def == S_DEF_USER) {
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| 327 | sym = sym_find(line + 2 + strlen(CONFIG_));
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| 328 | if (!sym) {
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| 329 | sym_add_change_count(1);
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| 330 | goto setsym;
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| 331 | }
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| 332 | } else {
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| 333 | sym = sym_lookup(line + 2 + strlen(CONFIG_), 0);
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| 334 | if (sym->type == S_UNKNOWN)
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| 335 | sym->type = S_BOOLEAN;
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| 336 | }
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| 337 | if (sym->flags & def_flags) {
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| 338 | conf_warning("override: reassigning to symbol %s", sym->name);
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| 339 | }
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| 340 | switch (sym->type) {
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| 341 | case S_BOOLEAN:
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| 342 | case S_TRISTATE:
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| 343 | sym->def[def].tri = no;
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| 344 | sym->flags |= def_flags;
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| 345 | break;
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| 346 | default:
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| 347 | ;
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| 348 | }
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| 349 | } else if (memcmp(line, CONFIG_, strlen(CONFIG_)) == 0) {
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| 350 | p = strchr(line + strlen(CONFIG_), '=');
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| 351 | if (!p)
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| 352 | continue;
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| 353 | *p++ = 0;
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| 354 | p2 = strchr(p, '\n');
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| 355 | if (p2) {
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| 356 | *p2-- = 0;
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| 357 | if (*p2 == '\r')
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| 358 | *p2 = 0;
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| 359 | }
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| 360 | if (def == S_DEF_USER) {
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| 361 | sym = sym_find(line + strlen(CONFIG_));
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| 362 | if (!sym) {
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| 363 | sym_add_change_count(1);
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| 364 | goto setsym;
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| 365 | }
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| 366 | } else {
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| 367 | sym = sym_lookup(line + strlen(CONFIG_), 0);
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| 368 | if (sym->type == S_UNKNOWN)
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| 369 | sym->type = S_OTHER;
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| 370 | }
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| 371 | if (sym->flags & def_flags) {
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| 372 | conf_warning("override: reassigning to symbol %s", sym->name);
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| 373 | }
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| 374 | if (conf_set_sym_val(sym, def, def_flags, p))
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| 375 | continue;
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| 376 | } else {
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| 377 | if (line[0] != '\r' && line[0] != '\n')
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| 378 | conf_warning("unexpected data: %.*s",
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| 379 | (int)strcspn(line, "\r\n"), line);
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| 380 |
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| 381 | continue;
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| 382 | }
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| 383 | setsym:
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| 384 | if (sym && sym_is_choice_value(sym)) {
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| 385 | struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym));
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| 386 | switch (sym->def[def].tri) {
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| 387 | case no:
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| 388 | break;
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| 389 | case mod:
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| 390 | if (cs->def[def].tri == yes) {
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| 391 | conf_warning("%s creates inconsistent choice state", sym->name);
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| 392 | cs->flags &= ~def_flags;
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| 393 | }
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| 394 | break;
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| 395 | case yes:
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| 396 | if (cs->def[def].tri != no)
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| 397 | conf_warning("override: %s changes choice state", sym->name);
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| 398 | cs->def[def].val = sym;
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| 399 | break;
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| 400 | }
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| 401 | cs->def[def].tri = EXPR_OR(cs->def[def].tri, sym->def[def].tri);
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| 402 | }
|
| 403 | }
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| 404 | free(line);
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| 405 | fclose(in);
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| 406 | return 0;
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| 407 | }
|
| 408 |
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| 409 | int conf_read(const char *name)
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| 410 | {
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| 411 | struct symbol *sym;
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| 412 | int i;
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| 413 |
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| 414 | sym_set_change_count(0);
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| 415 |
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| 416 | if (conf_read_simple(name, S_DEF_USER)) {
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| 417 | sym_calc_value(modules_sym);
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| 418 | return 1;
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| 419 | }
|
| 420 |
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| 421 | sym_calc_value(modules_sym);
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| 422 |
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| 423 | for_all_symbols(i, sym) {
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| 424 | sym_calc_value(sym);
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| 425 | if (sym_is_choice(sym) || (sym->flags & SYMBOL_AUTO))
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| 426 | continue;
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| 427 | if (sym_has_value(sym) && (sym->flags & SYMBOL_WRITE)) {
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| 428 |
|
| 429 | switch (sym->type) {
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| 430 | case S_BOOLEAN:
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| 431 | case S_TRISTATE:
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| 432 | if (sym->def[S_DEF_USER].tri != sym_get_tristate_value(sym))
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| 433 | break;
|
| 434 | if (!sym_is_choice(sym))
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| 435 | continue;
|
| 436 |
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| 437 | default:
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| 438 | if (!strcmp(sym->curr.val, sym->def[S_DEF_USER].val))
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| 439 | continue;
|
| 440 | break;
|
| 441 | }
|
| 442 | } else if (!sym_has_value(sym) && !(sym->flags & SYMBOL_WRITE))
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| 443 |
|
| 444 | continue;
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| 445 | conf_unsaved++;
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| 446 |
|
| 447 | }
|
| 448 |
|
| 449 | for_all_symbols(i, sym) {
|
| 450 | if (sym_has_value(sym) && !sym_is_choice_value(sym)) {
|
| 451 | |
| 452 | * as new, if they should become visible, but that
|
| 453 | * doesn't quite work if the Kconfig and the saved
|
| 454 | * configuration disagree.
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| 455 |
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| 456 | if (sym->visible == no && !conf_unsaved)
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| 457 | sym->flags &= ~SYMBOL_DEF_USER;
|
| 458 | switch (sym->type) {
|
| 459 | case S_STRING:
|
| 460 | case S_INT:
|
| 461 | case S_HEX:
|
| 462 |
|
| 463 | if (sym_string_within_range(sym, sym->def[S_DEF_USER].val))
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| 464 | break;
|
| 465 | sym->flags &= ~(SYMBOL_VALID|SYMBOL_DEF_USER);
|
| 466 | conf_unsaved++;
|
| 467 | break;
|
| 468 | default:
|
| 469 | break;
|
| 470 | }
|
| 471 | }
|
| 472 | }
|
| 473 |
|
| 474 | sym_add_change_count(conf_warnings || conf_unsaved);
|
| 475 |
|
| 476 | return 0;
|
| 477 | }
|
| 478 |
|
| 479 | |
| 480 | * Kconfig configuration printer
|
| 481 | *
|
| 482 | * This printer is used when generating the resulting configuration after
|
| 483 | * kconfig invocation and `defconfig' files. Unset symbol might be omitted by
|
| 484 | * passing a non-NULL argument to the printer.
|
| 485 | *
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| 486 |
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| 487 | static void
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| 488 | kconfig_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
|
| 489 | {
|
| 490 |
|
| 491 | switch (sym->type) {
|
| 492 | case S_BOOLEAN:
|
| 493 | case S_TRISTATE:
|
| 494 | if (*value == 'n') {
|
| 495 | bool skip_unset = (arg != NULL);
|
| 496 |
|
| 497 | if (!skip_unset)
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| 498 | fprintf(fp, "# %s%s is not set\n",
|
| 499 | CONFIG_, sym->name);
|
| 500 | return;
|
| 501 | }
|
| 502 | break;
|
| 503 | default:
|
| 504 | break;
|
| 505 | }
|
| 506 |
|
| 507 | fprintf(fp, "%s%s=%s\n", CONFIG_, sym->name, value);
|
| 508 | }
|
| 509 |
|
| 510 | static void
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| 511 | kconfig_print_comment(FILE *fp, const char *value, void *arg)
|
| 512 | {
|
| 513 | const char *p = value;
|
| 514 | size_t l;
|
| 515 |
|
| 516 | for (;;) {
|
| 517 | l = strcspn(p, "\n");
|
| 518 | fprintf(fp, "#");
|
| 519 | if (l) {
|
| 520 | fprintf(fp, " ");
|
| 521 | xfwrite(p, l, 1, fp);
|
| 522 | p += l;
|
| 523 | }
|
| 524 | fprintf(fp, "\n");
|
| 525 | if (*p++ == '\0')
|
| 526 | break;
|
| 527 | }
|
| 528 | }
|
| 529 |
|
| 530 | static struct conf_printer kconfig_printer_cb =
|
| 531 | {
|
| 532 | .print_symbol = kconfig_print_symbol,
|
| 533 | .print_comment = kconfig_print_comment,
|
| 534 | };
|
| 535 |
|
| 536 | |
| 537 | * Header printer
|
| 538 | *
|
| 539 | * This printer is used when generating the `include/generated/autoconf.h' file.
|
| 540 |
|
| 541 | static void
|
| 542 | header_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
|
| 543 | {
|
| 544 |
|
| 545 | switch (sym->type) {
|
| 546 | case S_BOOLEAN:
|
| 547 | case S_TRISTATE: {
|
| 548 | const char *suffix = "";
|
| 549 |
|
| 550 | switch (*value) {
|
| 551 | case 'n':
|
| 552 | break;
|
| 553 | case 'm':
|
| 554 | suffix = "_MODULE";
|
| 555 |
|
| 556 | default:
|
| 557 | fprintf(fp, "#define %s%s%s 1\n",
|
| 558 | CONFIG_, sym->name, suffix);
|
| 559 | }
|
| 560 | break;
|
| 561 | }
|
| 562 | case S_HEX: {
|
| 563 | const char *prefix = "";
|
| 564 |
|
| 565 | if (value[0] != '0' || (value[1] != 'x' && value[1] != 'X'))
|
| 566 | prefix = "0x";
|
| 567 | fprintf(fp, "#define %s%s %s%s\n",
|
| 568 | CONFIG_, sym->name, prefix, value);
|
| 569 | break;
|
| 570 | }
|
| 571 | case S_STRING:
|
| 572 | case S_INT:
|
| 573 | fprintf(fp, "#define %s%s %s\n",
|
| 574 | CONFIG_, sym->name, value);
|
| 575 | break;
|
| 576 | default:
|
| 577 | break;
|
| 578 | }
|
| 579 |
|
| 580 | }
|
| 581 |
|
| 582 | static void
|
| 583 | header_print_comment(FILE *fp, const char *value, void *arg)
|
| 584 | {
|
| 585 | const char *p = value;
|
| 586 | size_t l;
|
| 587 |
|
| 588 | fprintf(fp, "/*\n");
|
| 589 | for (;;) {
|
| 590 | l = strcspn(p, "\n");
|
| 591 | fprintf(fp, " *");
|
| 592 | if (l) {
|
| 593 | fprintf(fp, " ");
|
| 594 | xfwrite(p, l, 1, fp);
|
| 595 | p += l;
|
| 596 | }
|
| 597 | fprintf(fp, "\n");
|
| 598 | if (*p++ == '\0')
|
| 599 | break;
|
| 600 | }
|
| 601 | fprintf(fp, " */\n");
|
| 602 | }
|
| 603 |
|
| 604 | static struct conf_printer header_printer_cb =
|
| 605 | {
|
| 606 | .print_symbol = header_print_symbol,
|
| 607 | .print_comment = header_print_comment,
|
| 608 | };
|
| 609 |
|
| 610 | |
| 611 | * Tristate printer
|
| 612 | *
|
| 613 | * This printer is used when generating the `include/config/tristate.conf' file.
|
| 614 |
|
| 615 | static void
|
| 616 | tristate_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
|
| 617 | {
|
| 618 |
|
| 619 | if (sym->type == S_TRISTATE && *value != 'n')
|
| 620 | fprintf(fp, "%s%s=%c\n", CONFIG_, sym->name, (char)toupper(*value));
|
| 621 | }
|
| 622 |
|
| 623 | static struct conf_printer tristate_printer_cb =
|
| 624 | {
|
| 625 | .print_symbol = tristate_print_symbol,
|
| 626 | .print_comment = kconfig_print_comment,
|
| 627 | };
|
| 628 |
|
| 629 | static void conf_write_symbol(FILE *fp, struct symbol *sym,
|
| 630 | struct conf_printer *printer, void *printer_arg)
|
| 631 | {
|
| 632 | const char *str;
|
| 633 |
|
| 634 | switch (sym->type) {
|
| 635 | case S_OTHER:
|
| 636 | case S_UNKNOWN:
|
| 637 | break;
|
| 638 | case S_STRING:
|
| 639 | str = sym_get_string_value(sym);
|
| 640 | str = sym_escape_string_value(str);
|
| 641 | printer->print_symbol(fp, sym, str, printer_arg);
|
| 642 | free((void *)str);
|
| 643 | break;
|
| 644 | default:
|
| 645 | str = sym_get_string_value(sym);
|
| 646 | printer->print_symbol(fp, sym, str, printer_arg);
|
| 647 | }
|
| 648 | }
|
| 649 |
|
| 650 | static void
|
| 651 | conf_write_heading(FILE *fp, struct conf_printer *printer, void *printer_arg)
|
| 652 | {
|
| 653 | char buf[256];
|
| 654 |
|
| 655 | snprintf(buf, sizeof(buf),
|
| 656 | "\n"
|
| 657 | "Automatically generated file; DO NOT EDIT.\n"
|
| 658 | "%s\n",
|
| 659 | rootmenu.prompt->text);
|
| 660 |
|
| 661 | printer->print_comment(fp, buf, printer_arg);
|
| 662 | }
|
| 663 |
|
| 664 | |
| 665 | * Write out a minimal config.
|
| 666 | * All values that has default values are skipped as this is redundant.
|
| 667 |
|
| 668 | int conf_write_defconfig(const char *filename)
|
| 669 | {
|
| 670 | struct symbol *sym;
|
| 671 | struct menu *menu;
|
| 672 | FILE *out;
|
| 673 |
|
| 674 | out = fopen(filename, "w");
|
| 675 | if (!out)
|
| 676 | return 1;
|
| 677 |
|
| 678 | sym_clear_all_valid();
|
| 679 |
|
| 680 |
|
| 681 | menu = rootmenu.list;
|
| 682 |
|
| 683 | while (menu != NULL)
|
| 684 | {
|
| 685 | sym = menu->sym;
|
| 686 | if (sym == NULL) {
|
| 687 | if (!menu_is_visible(menu))
|
| 688 | goto next_menu;
|
| 689 | } else if (!sym_is_choice(sym)) {
|
| 690 | sym_calc_value(sym);
|
| 691 | if (!(sym->flags & SYMBOL_WRITE))
|
| 692 | goto next_menu;
|
| 693 | sym->flags &= ~SYMBOL_WRITE;
|
| 694 |
|
| 695 | if (!sym_is_changable(sym))
|
| 696 | goto next_menu;
|
| 697 |
|
| 698 | if (strcmp(sym_get_string_value(sym), sym_get_string_default(sym)) == 0)
|
| 699 | goto next_menu;
|
| 700 |
|
| 701 | |
| 702 | * If symbol is a choice value and equals to the
|
| 703 | * default for a choice - skip.
|
| 704 | * But only if value is bool and equal to "y" and
|
| 705 | * choice is not "optional".
|
| 706 | * (If choice is "optional" then all values can be "n")
|
| 707 |
|
| 708 | if (sym_is_choice_value(sym)) {
|
| 709 | struct symbol *cs;
|
| 710 | struct symbol *ds;
|
| 711 |
|
| 712 | cs = prop_get_symbol(sym_get_choice_prop(sym));
|
| 713 | ds = sym_choice_default(cs);
|
| 714 | if (!sym_is_optional(cs) && sym == ds) {
|
| 715 | if ((sym->type == S_BOOLEAN) &&
|
| 716 | sym_get_tristate_value(sym) == yes)
|
| 717 | goto next_menu;
|
| 718 | }
|
| 719 | }
|
| 720 | conf_write_symbol(out, sym, &kconfig_printer_cb, NULL);
|
| 721 | }
|
| 722 | next_menu:
|
| 723 | if (menu->list != NULL) {
|
| 724 | menu = menu->list;
|
| 725 | }
|
| 726 | else if (menu->next != NULL) {
|
| 727 | menu = menu->next;
|
| 728 | } else {
|
| 729 | while ((menu = menu->parent)) {
|
| 730 | if (menu->next != NULL) {
|
| 731 | menu = menu->next;
|
| 732 | break;
|
| 733 | }
|
| 734 | }
|
| 735 | }
|
| 736 | }
|
| 737 | fclose(out);
|
| 738 | return 0;
|
| 739 | }
|
| 740 |
|
| 741 | int conf_write(const char *name)
|
| 742 | {
|
| 743 | FILE *out;
|
| 744 | struct symbol *sym;
|
| 745 | struct menu *menu;
|
| 746 | const char *basename;
|
| 747 | const char *str;
|
| 748 | char dirname[PATH_MAX+1], tmpname[PATH_MAX+1], newname[PATH_MAX+1];
|
| 749 | char *env;
|
| 750 |
|
| 751 | dirname[0] = 0;
|
| 752 | if (name && name[0]) {
|
| 753 | struct stat st;
|
| 754 | char *slash;
|
| 755 |
|
| 756 | if (!stat(name, &st) && S_ISDIR(st.st_mode)) {
|
| 757 | strcpy(dirname, name);
|
| 758 | strcat(dirname, "/");
|
| 759 | basename = conf_get_configname();
|
| 760 | } else if ((slash = strrchr(name, '/'))) {
|
| 761 | int size = slash - name + 1;
|
| 762 | memcpy(dirname, name, size);
|
| 763 | dirname[size] = 0;
|
| 764 | if (slash[1])
|
| 765 | basename = slash + 1;
|
| 766 | else
|
| 767 | basename = conf_get_configname();
|
| 768 | } else
|
| 769 | basename = name;
|
| 770 | } else
|
| 771 | basename = conf_get_configname();
|
| 772 |
|
| 773 | sprintf(newname, "%s%s", dirname, basename);
|
| 774 | env = getenv("KCONFIG_OVERWRITECONFIG");
|
| 775 | if (!env || !*env) {
|
| 776 | sprintf(tmpname, "%s.tmpconfig.%d", dirname, (int)getpid());
|
| 777 | out = fopen(tmpname, "w");
|
| 778 | } else {
|
| 779 | *tmpname = 0;
|
| 780 | out = fopen(newname, "w");
|
| 781 | }
|
| 782 | if (!out)
|
| 783 | return 1;
|
| 784 |
|
| 785 | conf_write_heading(out, &kconfig_printer_cb, NULL);
|
| 786 |
|
| 787 | if (!conf_get_changed())
|
| 788 | sym_clear_all_valid();
|
| 789 |
|
| 790 | menu = rootmenu.list;
|
| 791 | while (menu) {
|
| 792 | sym = menu->sym;
|
| 793 | if (!sym) {
|
| 794 | if (!menu_is_visible(menu))
|
| 795 | goto next;
|
| 796 | str = menu_get_prompt(menu);
|
| 797 | fprintf(out, "\n"
|
| 798 | "#\n"
|
| 799 | "# %s\n"
|
| 800 | "#\n", str);
|
| 801 | } else if (!(sym->flags & SYMBOL_CHOICE)) {
|
| 802 | sym_calc_value(sym);
|
| 803 | if (!(sym->flags & SYMBOL_WRITE))
|
| 804 | goto next;
|
| 805 | sym->flags &= ~SYMBOL_WRITE;
|
| 806 |
|
| 807 | conf_write_symbol(out, sym, &kconfig_printer_cb, NULL);
|
| 808 | }
|
| 809 |
|
| 810 | next:
|
| 811 | if (menu->list) {
|
| 812 | menu = menu->list;
|
| 813 | continue;
|
| 814 | }
|
| 815 | if (menu->next)
|
| 816 | menu = menu->next;
|
| 817 | else while ((menu = menu->parent)) {
|
| 818 | if (menu->next) {
|
| 819 | menu = menu->next;
|
| 820 | break;
|
| 821 | }
|
| 822 | }
|
| 823 | }
|
| 824 | fclose(out);
|
| 825 |
|
| 826 | if (*tmpname) {
|
| 827 | strcat(dirname, basename);
|
| 828 | strcat(dirname, ".old");
|
| 829 | rename(newname, dirname);
|
| 830 | if (rename(tmpname, newname))
|
| 831 | return 1;
|
| 832 | }
|
| 833 |
|
| 834 | conf_message(_("configuration written to %s"), newname);
|
| 835 |
|
| 836 | sym_set_change_count(0);
|
| 837 |
|
| 838 | return 0;
|
| 839 | }
|
| 840 |
|
| 841 | static int conf_split_config(void)
|
| 842 | {
|
| 843 | const char *name;
|
| 844 | char path[PATH_MAX+1];
|
| 845 | char *s, *d, c;
|
| 846 | struct symbol *sym;
|
| 847 | struct stat sb;
|
| 848 | int res, i, fd;
|
| 849 |
|
| 850 | name = conf_get_autoconfig_name();
|
| 851 | conf_read_simple(name, S_DEF_AUTO);
|
| 852 | sym_calc_value(modules_sym);
|
| 853 |
|
| 854 | if (chdir("include/config"))
|
| 855 | return 1;
|
| 856 |
|
| 857 | res = 0;
|
| 858 | for_all_symbols(i, sym) {
|
| 859 | sym_calc_value(sym);
|
| 860 | if ((sym->flags & SYMBOL_AUTO) || !sym->name)
|
| 861 | continue;
|
| 862 | if (sym->flags & SYMBOL_WRITE) {
|
| 863 | if (sym->flags & SYMBOL_DEF_AUTO) {
|
| 864 | |
| 865 | * symbol has old and new value,
|
| 866 | * so compare them...
|
| 867 |
|
| 868 | switch (sym->type) {
|
| 869 | case S_BOOLEAN:
|
| 870 | case S_TRISTATE:
|
| 871 | if (sym_get_tristate_value(sym) ==
|
| 872 | sym->def[S_DEF_AUTO].tri)
|
| 873 | continue;
|
| 874 | break;
|
| 875 | case S_STRING:
|
| 876 | case S_HEX:
|
| 877 | case S_INT:
|
| 878 | if (!strcmp(sym_get_string_value(sym),
|
| 879 | sym->def[S_DEF_AUTO].val))
|
| 880 | continue;
|
| 881 | break;
|
| 882 | default:
|
| 883 | break;
|
| 884 | }
|
| 885 | } else {
|
| 886 | |
| 887 | * If there is no old value, only 'no' (unset)
|
| 888 | * is allowed as new value.
|
| 889 |
|
| 890 | switch (sym->type) {
|
| 891 | case S_BOOLEAN:
|
| 892 | case S_TRISTATE:
|
| 893 | if (sym_get_tristate_value(sym) == no)
|
| 894 | continue;
|
| 895 | break;
|
| 896 | default:
|
| 897 | break;
|
| 898 | }
|
| 899 | }
|
| 900 | } else if (!(sym->flags & SYMBOL_DEF_AUTO))
|
| 901 |
|
| 902 | continue;
|
| 903 | |
| 904 | * There is an old value, but no new value ('no' (unset)
|
| 905 | * isn't saved in auto.conf, so the old value is always
|
| 906 | * different from 'no').
|
| 907 |
|
| 908 |
|
| 909 |
|
| 910 | s = sym->name;
|
| 911 | d = path;
|
| 912 | while ((c = *s++)) {
|
| 913 | c = tolower(c);
|
| 914 | *d++ = (c == '_') ? '/' : c;
|
| 915 | }
|
| 916 | strcpy(d, ".h");
|
| 917 |
|
| 918 |
|
| 919 | fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
|
| 920 | if (fd == -1) {
|
| 921 | if (errno != ENOENT) {
|
| 922 | res = 1;
|
| 923 | break;
|
| 924 | }
|
| 925 | |
| 926 | * Create directory components,
|
| 927 | * unless they exist already.
|
| 928 |
|
| 929 | d = path;
|
| 930 | while ((d = strchr(d, '/'))) {
|
| 931 | *d = 0;
|
| 932 | if (stat(path, &sb) && mkdir(path, 0755)) {
|
| 933 | res = 1;
|
| 934 | goto out;
|
| 935 | }
|
| 936 | *d++ = '/';
|
| 937 | }
|
| 938 |
|
| 939 | fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
|
| 940 | if (fd == -1) {
|
| 941 | res = 1;
|
| 942 | break;
|
| 943 | }
|
| 944 | }
|
| 945 | close(fd);
|
| 946 | }
|
| 947 | out:
|
| 948 | if (chdir("../.."))
|
| 949 | return 1;
|
| 950 |
|
| 951 | return res;
|
| 952 | }
|
| 953 |
|
| 954 | int conf_write_autoconf(void)
|
| 955 | {
|
| 956 | struct symbol *sym;
|
| 957 | const char *name;
|
| 958 | FILE *out, *tristate, *out_h;
|
| 959 | int i;
|
| 960 |
|
| 961 | sym_clear_all_valid();
|
| 962 |
|
| 963 | file_write_dep("include/config/auto.conf.cmd");
|
| 964 |
|
| 965 | if (conf_split_config())
|
| 966 | return 1;
|
| 967 |
|
| 968 | out = fopen(".tmpconfig", "w");
|
| 969 | if (!out)
|
| 970 | return 1;
|
| 971 |
|
| 972 | tristate = fopen(".tmpconfig_tristate", "w");
|
| 973 | if (!tristate) {
|
| 974 | fclose(out);
|
| 975 | return 1;
|
| 976 | }
|
| 977 |
|
| 978 | out_h = fopen(".tmpconfig.h", "w");
|
| 979 | if (!out_h) {
|
| 980 | fclose(out);
|
| 981 | fclose(tristate);
|
| 982 | return 1;
|
| 983 | }
|
| 984 |
|
| 985 | conf_write_heading(out, &kconfig_printer_cb, NULL);
|
| 986 |
|
| 987 | conf_write_heading(tristate, &tristate_printer_cb, NULL);
|
| 988 |
|
| 989 | conf_write_heading(out_h, &header_printer_cb, NULL);
|
| 990 |
|
| 991 | for_all_symbols(i, sym) {
|
| 992 | sym_calc_value(sym);
|
| 993 | if (!(sym->flags & SYMBOL_WRITE) || !sym->name)
|
| 994 | continue;
|
| 995 |
|
| 996 |
|
| 997 | conf_write_symbol(out, sym, &kconfig_printer_cb, (void *)1);
|
| 998 |
|
| 999 | conf_write_symbol(tristate, sym, &tristate_printer_cb, (void *)1);
|
| 1000 |
|
| 1001 | conf_write_symbol(out_h, sym, &header_printer_cb, NULL);
|
| 1002 | }
|
| 1003 | fclose(out);
|
| 1004 | fclose(tristate);
|
| 1005 | fclose(out_h);
|
| 1006 |
|
| 1007 | name = getenv("KCONFIG_AUTOHEADER");
|
| 1008 | if (!name)
|
| 1009 | name = "include/generated/autoconf.h";
|
| 1010 | if (rename(".tmpconfig.h", name))
|
| 1011 | return 1;
|
| 1012 | name = getenv("KCONFIG_TRISTATE");
|
| 1013 | if (!name)
|
| 1014 | name = "include/config/tristate.conf";
|
| 1015 | if (rename(".tmpconfig_tristate", name))
|
| 1016 | return 1;
|
| 1017 | name = conf_get_autoconfig_name();
|
| 1018 | |
| 1019 | * This must be the last step, kbuild has a dependency on auto.conf
|
| 1020 | * and this marks the successful completion of the previous steps.
|
| 1021 |
|
| 1022 | if (rename(".tmpconfig", name))
|
| 1023 | return 1;
|
| 1024 |
|
| 1025 | return 0;
|
| 1026 | }
|
| 1027 |
|
| 1028 | static int sym_change_count;
|
| 1029 | static void (*conf_changed_callback)(void);
|
| 1030 |
|
| 1031 | void sym_set_change_count(int count)
|
| 1032 | {
|
| 1033 | int _sym_change_count = sym_change_count;
|
| 1034 | sym_change_count = count;
|
| 1035 | if (conf_changed_callback &&
|
| 1036 | (bool)_sym_change_count != (bool)count)
|
| 1037 | conf_changed_callback();
|
| 1038 | }
|
| 1039 |
|
| 1040 | void sym_add_change_count(int count)
|
| 1041 | {
|
| 1042 | sym_set_change_count(count + sym_change_count);
|
| 1043 | }
|
| 1044 |
|
| 1045 | bool conf_get_changed(void)
|
| 1046 | {
|
| 1047 | return sym_change_count;
|
| 1048 | }
|
| 1049 |
|
| 1050 | void conf_set_changed_callback(void (*fn)(void))
|
| 1051 | {
|
| 1052 | conf_changed_callback = fn;
|
| 1053 | }
|
| 1054 |
|
| 1055 | static bool randomize_choice_values(struct symbol *csym)
|
| 1056 | {
|
| 1057 | struct property *prop;
|
| 1058 | struct symbol *sym;
|
| 1059 | struct expr *e;
|
| 1060 | int cnt, def;
|
| 1061 |
|
| 1062 | |
| 1063 | * If choice is mod then we may have more items selected
|
| 1064 | * and if no then no-one.
|
| 1065 | * In both cases stop.
|
| 1066 |
|
| 1067 | if (csym->curr.tri != yes)
|
| 1068 | return false;
|
| 1069 |
|
| 1070 | prop = sym_get_choice_prop(csym);
|
| 1071 |
|
| 1072 |
|
| 1073 | cnt = 0;
|
| 1074 | expr_list_for_each_sym(prop->expr, e, sym)
|
| 1075 | cnt++;
|
| 1076 |
|
| 1077 | |
| 1078 | * find a random value and set it to yes,
|
| 1079 | * set the rest to no so we have only one set
|
| 1080 |
|
| 1081 | def = (rand() % cnt);
|
| 1082 |
|
| 1083 | cnt = 0;
|
| 1084 | expr_list_for_each_sym(prop->expr, e, sym) {
|
| 1085 | if (def == cnt++) {
|
| 1086 | sym->def[S_DEF_USER].tri = yes;
|
| 1087 | csym->def[S_DEF_USER].val = sym;
|
| 1088 | }
|
| 1089 | else {
|
| 1090 | sym->def[S_DEF_USER].tri = no;
|
| 1091 | }
|
| 1092 | sym->flags |= SYMBOL_DEF_USER;
|
| 1093 |
|
| 1094 | sym->flags &= ~SYMBOL_VALID;
|
| 1095 | }
|
| 1096 | csym->flags |= SYMBOL_DEF_USER;
|
| 1097 |
|
| 1098 | csym->flags &= ~(SYMBOL_VALID);
|
| 1099 |
|
| 1100 | return true;
|
| 1101 | }
|
| 1102 |
|
| 1103 | void set_all_choice_values(struct symbol *csym)
|
| 1104 | {
|
| 1105 | struct property *prop;
|
| 1106 | struct symbol *sym;
|
| 1107 | struct expr *e;
|
| 1108 |
|
| 1109 | prop = sym_get_choice_prop(csym);
|
| 1110 |
|
| 1111 | |
| 1112 | * Set all non-assinged choice values to no
|
| 1113 |
|
| 1114 | expr_list_for_each_sym(prop->expr, e, sym) {
|
| 1115 | if (!sym_has_value(sym))
|
| 1116 | sym->def[S_DEF_USER].tri = no;
|
| 1117 | }
|
| 1118 | csym->flags |= SYMBOL_DEF_USER;
|
| 1119 |
|
| 1120 | csym->flags &= ~(SYMBOL_VALID | SYMBOL_NEED_SET_CHOICE_VALUES);
|
| 1121 | }
|
| 1122 |
|
| 1123 | bool conf_set_all_new_symbols(enum conf_def_mode mode)
|
| 1124 | {
|
| 1125 | struct symbol *sym, *csym;
|
| 1126 | int i, cnt, pby, pty, ptm; |
| 1127 | * pty: probability of tristate = y
|
| 1128 | * ptm: probability of tristate = m
|
| 1129 |
|
| 1130 |
|
| 1131 | pby = 50; pty = ptm = 33; |
| 1132 | * below, otherwise gcc whines about
|
| 1133 | * -Wmaybe-uninitialized
|
| 1134 | if (mode == def_random) {
|
| 1135 | int n, p[3];
|
| 1136 | char *env = getenv("KCONFIG_PROBABILITY");
|
| 1137 | n = 0;
|
| 1138 | while( env && *env ) {
|
| 1139 | char *endp;
|
| 1140 | int tmp = strtol( env, &endp, 10 );
|
| 1141 | if( tmp >= 0 && tmp <= 100 ) {
|
| 1142 | p[n++] = tmp;
|
| 1143 | } else {
|
| 1144 | errno = ERANGE;
|
| 1145 | perror( "KCONFIG_PROBABILITY" );
|
| 1146 | exit( 1 );
|
| 1147 | }
|
| 1148 | env = (*endp == ':') ? endp+1 : endp;
|
| 1149 | if( n >=3 ) {
|
| 1150 | break;
|
| 1151 | }
|
| 1152 | }
|
| 1153 | switch( n ) {
|
| 1154 | case 1:
|
| 1155 | pby = p[0]; ptm = pby/2; pty = pby-ptm;
|
| 1156 | break;
|
| 1157 | case 2:
|
| 1158 | pty = p[0]; ptm = p[1]; pby = pty + ptm;
|
| 1159 | break;
|
| 1160 | case 3:
|
| 1161 | pby = p[0]; pty = p[1]; ptm = p[2];
|
| 1162 | break;
|
| 1163 | }
|
| 1164 |
|
| 1165 | if( pty+ptm > 100 ) {
|
| 1166 | errno = ERANGE;
|
| 1167 | perror( "KCONFIG_PROBABILITY" );
|
| 1168 | exit( 1 );
|
| 1169 | }
|
| 1170 | }
|
| 1171 | bool has_changed = false;
|
| 1172 |
|
| 1173 | for_all_symbols(i, sym) {
|
| 1174 | if (sym_has_value(sym) || (sym->flags & SYMBOL_VALID))
|
| 1175 | continue;
|
| 1176 | switch (sym_get_type(sym)) {
|
| 1177 | case S_BOOLEAN:
|
| 1178 | case S_TRISTATE:
|
| 1179 | has_changed = true;
|
| 1180 | switch (mode) {
|
| 1181 | case def_yes:
|
| 1182 | sym->def[S_DEF_USER].tri = yes;
|
| 1183 | break;
|
| 1184 | case def_mod:
|
| 1185 | sym->def[S_DEF_USER].tri = mod;
|
| 1186 | break;
|
| 1187 | case def_no:
|
| 1188 | if (sym->flags & SYMBOL_ALLNOCONFIG_Y)
|
| 1189 | sym->def[S_DEF_USER].tri = yes;
|
| 1190 | else
|
| 1191 | sym->def[S_DEF_USER].tri = no;
|
| 1192 | break;
|
| 1193 | case def_random:
|
| 1194 | sym->def[S_DEF_USER].tri = no;
|
| 1195 | cnt = rand() % 100;
|
| 1196 | if (sym->type == S_TRISTATE) {
|
| 1197 | if (cnt < pty)
|
| 1198 | sym->def[S_DEF_USER].tri = yes;
|
| 1199 | else if (cnt < (pty+ptm))
|
| 1200 | sym->def[S_DEF_USER].tri = mod;
|
| 1201 | } else if (cnt < pby)
|
| 1202 | sym->def[S_DEF_USER].tri = yes;
|
| 1203 | break;
|
| 1204 | default:
|
| 1205 | continue;
|
| 1206 | }
|
| 1207 | if (!(sym_is_choice(sym) && mode == def_random))
|
| 1208 | sym->flags |= SYMBOL_DEF_USER;
|
| 1209 | break;
|
| 1210 | default:
|
| 1211 | break;
|
| 1212 | }
|
| 1213 |
|
| 1214 | }
|
| 1215 |
|
| 1216 | sym_clear_all_valid();
|
| 1217 |
|
| 1218 | |
| 1219 | * We have different type of choice blocks.
|
| 1220 | * If curr.tri equals to mod then we can select several
|
| 1221 | * choice symbols in one block.
|
| 1222 | * In this case we do nothing.
|
| 1223 | * If curr.tri equals yes then only one symbol can be
|
| 1224 | * selected in a choice block and we set it to yes,
|
| 1225 | * and the rest to no.
|
| 1226 |
|
| 1227 | if (mode != def_random) {
|
| 1228 | for_all_symbols(i, csym) {
|
| 1229 | if ((sym_is_choice(csym) && !sym_has_value(csym)) ||
|
| 1230 | sym_is_choice_value(csym))
|
| 1231 | csym->flags |= SYMBOL_NEED_SET_CHOICE_VALUES;
|
| 1232 | }
|
| 1233 | }
|
| 1234 |
|
| 1235 | for_all_symbols(i, csym) {
|
| 1236 | if (sym_has_value(csym) || !sym_is_choice(csym))
|
| 1237 | continue;
|
| 1238 |
|
| 1239 | sym_calc_value(csym);
|
| 1240 | if (mode == def_random)
|
| 1241 | has_changed = randomize_choice_values(csym);
|
| 1242 | else {
|
| 1243 | set_all_choice_values(csym);
|
| 1244 | has_changed = true;
|
| 1245 | }
|
| 1246 | }
|
| 1247 |
|
| 1248 | return has_changed;
|
| 1249 | }
|