#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
+#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
-#define LKC_DIRECT_LINK
#include "lkc.h"
static void conf_warning(const char *fmt, ...)
sym->flags |= def_flags;
break;
}
+ /* fall through */
case S_BOOLEAN:
if (p[0] == 'y') {
sym->def[def].tri = yes;
break;
}
conf_warning("symbol value '%s' invalid for %s", p, sym->name);
- break;
+ return 1;
case S_OTHER:
if (*p != '"') {
for (p2 = p; *p2 && !isspace(*p2); p2++)
sym->type = S_STRING;
goto done;
}
+ /* fall through */
case S_STRING:
if (*p++ != '"')
break;
conf_warning("invalid string found");
return 1;
}
+ /* fall through */
case S_INT:
case S_HEX:
done:
case S_STRING:
if (sym->def[def].val)
free(sym->def[def].val);
+ /* fall through */
default:
sym->def[def].val = NULL;
sym->def[def].tri = no;
while (fgets(line, sizeof(line), in)) {
conf_lineno++;
sym = NULL;
- switch (line[0]) {
- case '#':
- if (memcmp(line + 2, "CONFIG_", 7))
+ if (line[0] == '#') {
+ if (memcmp(line + 2, CONFIG_, strlen(CONFIG_)))
continue;
- p = strchr(line + 9, ' ');
+ p = strchr(line + 2 + strlen(CONFIG_), ' ');
if (!p)
continue;
*p++ = 0;
if (strncmp(p, "is not set", 10))
continue;
if (def == S_DEF_USER) {
- sym = sym_find(line + 9);
+ sym = sym_find(line + 2 + strlen(CONFIG_));
if (!sym) {
sym_add_change_count(1);
- break;
+ goto setsym;
}
} else {
- sym = sym_lookup(line + 9, 0);
+ sym = sym_lookup(line + 2 + strlen(CONFIG_), 0);
if (sym->type == S_UNKNOWN)
sym->type = S_BOOLEAN;
}
default:
;
}
- break;
- case 'C':
- if (memcmp(line, "CONFIG_", 7)) {
- conf_warning("unexpected data");
- continue;
- }
- p = strchr(line + 7, '=');
+ } else if (memcmp(line, CONFIG_, strlen(CONFIG_)) == 0) {
+ p = strchr(line + strlen(CONFIG_), '=');
if (!p)
continue;
*p++ = 0;
*p2 = 0;
}
if (def == S_DEF_USER) {
- sym = sym_find(line + 7);
+ sym = sym_find(line + strlen(CONFIG_));
if (!sym) {
sym_add_change_count(1);
- break;
+ goto setsym;
}
} else {
- sym = sym_lookup(line + 7, 0);
+ sym = sym_lookup(line + strlen(CONFIG_), 0);
if (sym->type == S_UNKNOWN)
sym->type = S_OTHER;
}
}
if (conf_set_sym_val(sym, def, def_flags, p))
continue;
- break;
- case '\r':
- case '\n':
- break;
- default:
- conf_warning("unexpected data");
+ } else {
+ if (line[0] != '\r' && line[0] != '\n')
+ conf_warning("unexpected data");
continue;
}
+setsym:
if (sym && sym_is_choice_value(sym)) {
struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym));
switch (sym->def[def].tri) {
break;
if (!sym_is_choice(sym))
goto sym_ok;
+ /* fall through */
default:
if (!strcmp(sym->curr.val, sym->def[S_DEF_USER].val))
goto sym_ok;
return 0;
}
-/* Write a S_STRING */
-static void conf_write_string(bool headerfile, const char *name,
- const char *str, FILE *out)
+/*
+ * Kconfig configuration printer
+ *
+ * This printer is used when generating the resulting configuration after
+ * kconfig invocation and `defconfig' files. Unset symbol might be omitted by
+ * passing a non-NULL argument to the printer.
+ *
+ */
+static void
+kconfig_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
+{
+
+ switch (sym->type) {
+ case S_BOOLEAN:
+ case S_TRISTATE:
+ if (*value == 'n') {
+ bool skip_unset = (arg != NULL);
+
+ if (!skip_unset)
+ fprintf(fp, "# %s%s is not set\n",
+ CONFIG_, sym->name);
+ return;
+ }
+ break;
+ default:
+ break;
+ }
+
+ fprintf(fp, "%s%s=%s\n", CONFIG_, sym->name, value);
+}
+
+static void
+kconfig_print_comment(FILE *fp, const char *value, void *arg)
{
- int l;
- if (headerfile)
- fprintf(out, "#define CONFIG_%s \"", name);
- else
- fprintf(out, "CONFIG_%s=\"", name);
-
- while (1) {
- l = strcspn(str, "\"\\");
+ const char *p = value;
+ size_t l;
+
+ for (;;) {
+ l = strcspn(p, "\n");
+ fprintf(fp, "#");
if (l) {
- xfwrite(str, l, 1, out);
- str += l;
+ fprintf(fp, " ");
+ xfwrite(p, l, 1, fp);
+ p += l;
}
- if (!*str)
+ fprintf(fp, "\n");
+ if (*p++ == '\0')
break;
- fprintf(out, "\\%c", *str++);
}
- fputs("\"\n", out);
}
-static void conf_write_symbol(struct symbol *sym, enum symbol_type type,
- FILE *out, bool write_no)
+static struct conf_printer kconfig_printer_cb =
{
- const char *str;
+ .print_symbol = kconfig_print_symbol,
+ .print_comment = kconfig_print_comment,
+};
- switch (type) {
+/*
+ * Header printer
+ *
+ * This printer is used when generating the `include/generated/autoconf.h' file.
+ */
+static void
+header_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
+{
+
+ switch (sym->type) {
case S_BOOLEAN:
- case S_TRISTATE:
- switch (sym_get_tristate_value(sym)) {
- case no:
- if (write_no)
- fprintf(out, "# CONFIG_%s is not set\n", sym->name);
- break;
- case mod:
- fprintf(out, "CONFIG_%s=m\n", sym->name);
- break;
- case yes:
- fprintf(out, "CONFIG_%s=y\n", sym->name);
+ case S_TRISTATE: {
+ const char *suffix = "";
+
+ switch (*value) {
+ case 'n':
break;
+ case 'm':
+ suffix = "_MODULE";
+ /* fall through */
+ default:
+ fprintf(fp, "#define %s%s%s 1\n",
+ CONFIG_, sym->name, suffix);
}
break;
- case S_STRING:
- conf_write_string(false, sym->name, sym_get_string_value(sym), out);
+ }
+ case S_HEX: {
+ const char *prefix = "";
+
+ if (value[0] != '0' || (value[1] != 'x' && value[1] != 'X'))
+ prefix = "0x";
+ fprintf(fp, "#define %s%s %s%s\n",
+ CONFIG_, sym->name, prefix, value);
break;
- case S_HEX:
+ }
+ case S_STRING:
case S_INT:
- str = sym_get_string_value(sym);
- fprintf(out, "CONFIG_%s=%s\n", sym->name, str);
+ fprintf(fp, "#define %s%s %s\n",
+ CONFIG_, sym->name, value);
+ break;
+ default:
break;
+ }
+
+}
+
+static void
+header_print_comment(FILE *fp, const char *value, void *arg)
+{
+ const char *p = value;
+ size_t l;
+
+ fprintf(fp, "/*\n");
+ for (;;) {
+ l = strcspn(p, "\n");
+ fprintf(fp, " *");
+ if (l) {
+ fprintf(fp, " ");
+ xfwrite(p, l, 1, fp);
+ p += l;
+ }
+ fprintf(fp, "\n");
+ if (*p++ == '\0')
+ break;
+ }
+ fprintf(fp, " */\n");
+}
+
+static struct conf_printer header_printer_cb =
+{
+ .print_symbol = header_print_symbol,
+ .print_comment = header_print_comment,
+};
+
+/*
+ * Generate the __enabled_CONFIG_* and __enabled_CONFIG_*_MODULE macros for
+ * use by the IS_{ENABLED,BUILTIN,MODULE} macros. The _MODULE variant is
+ * generated even for booleans so that the IS_ENABLED() macro works.
+ */
+static void
+header_print__enabled_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
+{
+
+ switch (sym->type) {
+ case S_BOOLEAN:
+ case S_TRISTATE: {
+ fprintf(fp, "#define __enabled_" CONFIG_ "%s %d\n",
+ sym->name, (*value == 'y'));
+ fprintf(fp, "#define __enabled_" CONFIG_ "%s_MODULE %d\n",
+ sym->name, (*value == 'm'));
+ break;
+ }
+ default:
+ break;
+ }
+}
+
+static struct conf_printer header__enabled_printer_cb =
+{
+ .print_symbol = header_print__enabled_symbol,
+ .print_comment = header_print_comment,
+};
+
+/*
+ * Tristate printer
+ *
+ * This printer is used when generating the `include/config/tristate.conf' file.
+ */
+static void
+tristate_print_symbol(FILE *fp, struct symbol *sym, const char *value, void *arg)
+{
+
+ if (sym->type == S_TRISTATE && *value != 'n')
+ fprintf(fp, "%s%s=%c\n", CONFIG_, sym->name, (char)toupper(*value));
+}
+
+static struct conf_printer tristate_printer_cb =
+{
+ .print_symbol = tristate_print_symbol,
+ .print_comment = kconfig_print_comment,
+};
+
+static void conf_write_symbol(FILE *fp, struct symbol *sym,
+ struct conf_printer *printer, void *printer_arg)
+{
+ const char *str;
+
+ switch (sym->type) {
case S_OTHER:
case S_UNKNOWN:
break;
+ case S_STRING:
+ str = sym_get_string_value(sym);
+ str = sym_escape_string_value(str);
+ printer->print_symbol(fp, sym, str, printer_arg);
+ free((void *)str);
+ break;
+ default:
+ str = sym_get_string_value(sym);
+ printer->print_symbol(fp, sym, str, printer_arg);
}
}
+static void
+conf_write_heading(FILE *fp, struct conf_printer *printer, void *printer_arg)
+{
+ char buf[256];
+
+ snprintf(buf, sizeof(buf),
+ "\n"
+ "Automatically generated file; DO NOT EDIT.\n"
+ "%s\n",
+ rootmenu.prompt->text);
+
+ printer->print_comment(fp, buf, printer_arg);
+}
+
/*
* Write out a minimal config.
* All values that has default values are skipped as this is redundant.
goto next_menu;
}
}
- conf_write_symbol(sym, sym->type, out, true);
+ conf_write_symbol(out, sym, &kconfig_printer_cb, NULL);
}
next_menu:
if (menu->list != NULL) {
struct menu *menu;
const char *basename;
const char *str;
- char dirname[128], tmpname[128], newname[128];
- enum symbol_type type;
- time_t now;
- int use_timestamp = 1;
+ char dirname[PATH_MAX+1], tmpname[PATH_MAX+1], newname[PATH_MAX+1];
char *env;
dirname[0] = 0;
if (!out)
return 1;
- sym = sym_lookup("KERNELVERSION", 0);
- sym_calc_value(sym);
- time(&now);
- env = getenv("KCONFIG_NOTIMESTAMP");
- if (env && *env)
- use_timestamp = 0;
-
- fprintf(out, _("#\n"
- "# Automatically generated make config: don't edit\n"
- "# Linux kernel version: %s\n"
- "%s%s"
- "#\n"),
- sym_get_string_value(sym),
- use_timestamp ? "# " : "",
- use_timestamp ? ctime(&now) : "");
+ conf_write_heading(out, &kconfig_printer_cb, NULL);
if (!conf_get_changed())
sym_clear_all_valid();
if (!(sym->flags & SYMBOL_WRITE))
goto next;
sym->flags &= ~SYMBOL_WRITE;
- type = sym->type;
- if (type == S_TRISTATE) {
- sym_calc_value(modules_sym);
- if (modules_sym->curr.tri == no)
- type = S_BOOLEAN;
- }
- /* Write config symbol to file */
- conf_write_symbol(sym, type, out, true);
+
+ conf_write_symbol(out, sym, &kconfig_printer_cb, NULL);
}
next:
static int conf_split_config(void)
{
const char *name;
- char path[128];
+ char path[PATH_MAX+1];
char *s, *d, c;
struct symbol *sym;
struct stat sb;
int conf_write_autoconf(void)
{
struct symbol *sym;
- const char *str;
const char *name;
FILE *out, *tristate, *out_h;
- time_t now;
int i;
sym_clear_all_valid();
return 1;
}
- sym = sym_lookup("KERNELVERSION", 0);
- sym_calc_value(sym);
- time(&now);
- fprintf(out, "#\n"
- "# Automatically generated make config: don't edit\n"
- "# Linux kernel version: %s\n"
- "# %s"
- "#\n",
- sym_get_string_value(sym), ctime(&now));
- fprintf(tristate, "#\n"
- "# Automatically generated - do not edit\n"
- "\n");
- fprintf(out_h, "/*\n"
- " * Automatically generated C config: don't edit\n"
- " * Linux kernel version: %s\n"
- " * %s"
- " */\n"
- "#define AUTOCONF_INCLUDED\n",
- sym_get_string_value(sym), ctime(&now));
+ conf_write_heading(out, &kconfig_printer_cb, NULL);
+
+ conf_write_heading(tristate, &tristate_printer_cb, NULL);
+
+ conf_write_heading(out_h, &header_printer_cb, NULL);
for_all_symbols(i, sym) {
+ if (!sym->name)
+ continue;
+
sym_calc_value(sym);
- if (!(sym->flags & SYMBOL_WRITE) || !sym->name)
+
+ conf_write_symbol(out_h, sym, &header__enabled_printer_cb, NULL);
+
+ if (!(sym->flags & SYMBOL_WRITE))
continue;
- /* write symbol to config file */
- conf_write_symbol(sym, sym->type, out, false);
+ conf_write_symbol(out, sym, &kconfig_printer_cb, (void *)1);
- /* update autoconf and tristate files */
- switch (sym->type) {
- case S_BOOLEAN:
- case S_TRISTATE:
- switch (sym_get_tristate_value(sym)) {
- case no:
- break;
- case mod:
- fprintf(tristate, "CONFIG_%s=M\n", sym->name);
- fprintf(out_h, "#define CONFIG_%s_MODULE 1\n", sym->name);
- break;
- case yes:
- if (sym->type == S_TRISTATE)
- fprintf(tristate, "CONFIG_%s=Y\n",
- sym->name);
- fprintf(out_h, "#define CONFIG_%s 1\n", sym->name);
- break;
- }
- break;
- case S_STRING:
- conf_write_string(true, sym->name, sym_get_string_value(sym), out_h);
- break;
- case S_HEX:
- str = sym_get_string_value(sym);
- if (str[0] != '0' || (str[1] != 'x' && str[1] != 'X')) {
- fprintf(out_h, "#define CONFIG_%s 0x%s\n", sym->name, str);
- break;
- }
- case S_INT:
- str = sym_get_string_value(sym);
- fprintf(out_h, "#define CONFIG_%s %s\n", sym->name, str);
- break;
- default:
- break;
- }
+ conf_write_symbol(tristate, sym, &tristate_printer_cb, (void *)1);
+
+ conf_write_symbol(out_h, sym, &header_printer_cb, NULL);
}
fclose(out);
fclose(tristate);
int cnt, def;
/*
- * If choice is mod then we may have more items slected
+ * If choice is mod then we may have more items selected
* and if no then no-one.
* In both cases stop.
*/
/*
* We have different type of choice blocks.
- * If curr.tri equal to mod then we can select several
+ * 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 equal yes then only one symbol can be
+ * 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.
*/
Code Review / linux-3.10.git / blobdiff