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Diffstat (limited to 'util/kconfig/confdata.c')
-rw-r--r--util/kconfig/confdata.c954
1 files changed, 683 insertions, 271 deletions
diff --git a/util/kconfig/confdata.c b/util/kconfig/confdata.c
index df39fcc243..a611ed7b01 100644
--- a/util/kconfig/confdata.c
+++ b/util/kconfig/confdata.c
@@ -5,26 +5,23 @@
#include <sys/stat.h>
#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"
-#ifdef WIN32
-#define mkdir(x,y) mkdir(x)
-#define UNLINK_IF_NECESSARY(x) unlink(x)
-#else
-#define UNLINK_IF_NECESSARY(X)
-#endif
-
static void conf_warning(const char *fmt, ...)
__attribute__ ((format (printf, 1, 2)));
+static void conf_message(const char *fmt, ...)
+ __attribute__ ((format (printf, 1, 2)));
+
static const char *conf_filename;
static int conf_lineno, conf_warnings, conf_unsaved;
@@ -41,6 +38,29 @@ static void conf_warning(const char *fmt, ...)
conf_warnings++;
}
+static void conf_default_message_callback(const char *fmt, va_list ap)
+{
+ printf("#\n# ");
+ vprintf(fmt, ap);
+ printf("\n#\n");
+}
+
+static void (*conf_message_callback) (const char *fmt, va_list ap) =
+ conf_default_message_callback;
+void conf_set_message_callback(void (*fn) (const char *fmt, va_list ap))
+{
+ conf_message_callback = fn;
+}
+
+static void conf_message(const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ if (conf_message_callback)
+ conf_message_callback(fmt, ap);
+}
+
const char *conf_get_configname(void)
{
char *name = getenv("KCONFIG_CONFIG");
@@ -48,6 +68,13 @@ const char *conf_get_configname(void)
return name ? name : ".config";
}
+const char *conf_get_autoconfig_name(void)
+{
+ char *name = getenv("KCONFIG_AUTOCONFIG");
+
+ return name ? name : "include/config/auto.conf";
+}
+
static char *conf_expand_value(const char *in)
{
struct symbol *sym;
@@ -101,6 +128,7 @@ static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p)
sym->flags |= def_flags;
break;
}
+ /* fall through */
case S_BOOLEAN:
if (p[0] == 'y') {
sym->def[def].tri = yes;
@@ -112,8 +140,10 @@ static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p)
sym->flags |= def_flags;
break;
}
- conf_warning("symbol value '%s' invalid for %s", p, sym->name);
- break;
+ if (def != S_DEF_AUTO)
+ conf_warning("symbol value '%s' invalid for %s",
+ p, sym->name);
+ return 1;
case S_OTHER:
if (*p != '"') {
for (p2 = p; *p2 && !isspace(*p2); p2++)
@@ -121,6 +151,7 @@ static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p)
sym->type = S_STRING;
goto done;
}
+ /* fall through */
case S_STRING:
if (*p++ != '"')
break;
@@ -132,9 +163,11 @@ static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p)
memmove(p2, p2 + 1, strlen(p2));
}
if (!p2) {
- conf_warning("invalid string found");
+ if (def != S_DEF_AUTO)
+ conf_warning("invalid string found");
return 1;
}
+ /* fall through */
case S_INT:
case S_HEX:
done:
@@ -142,7 +175,9 @@ static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p)
sym->def[def].val = strdup(p);
sym->flags |= def_flags;
} else {
- conf_warning("symbol value '%s' invalid for %s", p, sym->name);
+ if (def != S_DEF_AUTO)
+ conf_warning("symbol value '%s' invalid for %s",
+ p, sym->name);
return 1;
}
break;
@@ -152,10 +187,66 @@ static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p)
return 0;
}
+#define LINE_GROWTH 16
+static int add_byte(int c, char **lineptr, size_t slen, size_t *n)
+{
+ char *nline;
+ size_t new_size = slen + 1;
+ if (new_size > *n) {
+ new_size += LINE_GROWTH - 1;
+ new_size *= 2;
+ nline = realloc(*lineptr, new_size);
+ if (!nline)
+ return -1;
+
+ *lineptr = nline;
+ *n = new_size;
+ }
+
+ (*lineptr)[slen] = c;
+
+ return 0;
+}
+
+static ssize_t compat_getline(char **lineptr, size_t *n, FILE *stream)
+{
+ char *line = *lineptr;
+ size_t slen = 0;
+
+ for (;;) {
+ int c = getc(stream);
+
+ switch (c) {
+ case '\n':
+ if (add_byte(c, &line, slen, n) < 0)
+ goto e_out;
+ slen++;
+ /* fall through */
+ case EOF:
+ if (add_byte('\0', &line, slen, n) < 0)
+ goto e_out;
+ *lineptr = line;
+ if (slen == 0)
+ return -1;
+ return slen;
+ default:
+ if (add_byte(c, &line, slen, n) < 0)
+ goto e_out;
+ slen++;
+ }
+ }
+
+e_out:
+ line[slen-1] = '\0';
+ *lineptr = line;
+ return -1;
+}
+
int conf_read_simple(const char *name, int def)
{
FILE *in = NULL;
- char line[1024];
+ char *line = NULL;
+ size_t line_asize = 0;
char *p, *p2;
struct symbol *sym;
int i, def_flags;
@@ -170,8 +261,11 @@ int conf_read_simple(const char *name, int def)
if (in)
goto load;
sym_add_change_count(1);
- if (!sym_defconfig_list)
+ if (!sym_defconfig_list) {
+ if (modules_sym)
+ sym_calc_value(modules_sym);
return 1;
+ }
for_all_defaults(sym_defconfig_list, prop) {
if (expr_calc_value(prop->visible.expr) == no ||
@@ -180,9 +274,8 @@ int conf_read_simple(const char *name, int def)
name = conf_expand_value(prop->expr->left.sym->name);
in = zconf_fopen(name);
if (in) {
- printf(_("#\n"
- "# using defaults found in %s\n"
- "#\n"), name);
+ conf_message(_("using defaults found in %s"),
+ name);
goto load;
}
}
@@ -208,33 +301,33 @@ load:
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)) {
+ while (compat_getline(&line, &line_asize, in) != -1) {
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) {
- conf_warning("trying to assign nonexistent symbol %s", line + 9);
- break;
+ sym_add_change_count(1);
+ 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;
}
@@ -250,13 +343,8 @@ load:
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;
@@ -267,13 +355,13 @@ load:
*p2 = 0;
}
if (def == S_DEF_USER) {
- sym = sym_find(line + 7);
+ sym = sym_find(line + strlen(CONFIG_));
if (!sym) {
- conf_warning("trying to assign nonexistent symbol %s", line + 7);
- break;
+ sym_add_change_count(1);
+ 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;
}
@@ -282,14 +370,12 @@ load:
}
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) {
@@ -310,6 +396,7 @@ load:
cs->def[def].tri = EXPR_OR(cs->def[def].tri, sym->def[def].tri);
}
}
+ free(line);
fclose(in);
if (modules_sym)
@@ -319,10 +406,8 @@ load:
int conf_read(const char *name)
{
- struct symbol *sym, *choice_sym;
- struct property *prop;
- struct expr *e;
- int i, flags;
+ struct symbol *sym;
+ int i;
sym_set_change_count(0);
@@ -332,7 +417,7 @@ int conf_read(const char *name)
for_all_symbols(i, sym) {
sym_calc_value(sym);
if (sym_is_choice(sym) || (sym->flags & SYMBOL_AUTO))
- goto sym_ok;
+ continue;
if (sym_has_value(sym) && (sym->flags & SYMBOL_WRITE)) {
/* check that calculated value agrees with saved value */
switch (sym->type) {
@@ -341,29 +426,18 @@ int conf_read(const char *name)
if (sym->def[S_DEF_USER].tri != sym_get_tristate_value(sym))
break;
if (!sym_is_choice(sym))
- goto sym_ok;
+ continue;
+ /* fall through */
default:
if (!strcmp(sym->curr.val, sym->def[S_DEF_USER].val))
- goto sym_ok;
+ continue;
break;
}
} else if (!sym_has_value(sym) && !(sym->flags & SYMBOL_WRITE))
/* no previous value and not saved */
- goto sym_ok;
+ continue;
conf_unsaved++;
/* maybe print value in verbose mode... */
- sym_ok:
- if (!sym_is_choice(sym))
- continue;
- /* The choice symbol only has a set value (and thus is not new)
- * if all its visible childs have values.
- */
- prop = sym_get_choice_prop(sym);
- flags = sym->flags;
- expr_list_for_each_sym(prop->expr, e, choice_sym)
- if (choice_sym->visible != no)
- flags &= choice_sym->flags;
- sym->flags &= flags | ~SYMBOL_DEF_USER;
}
for_all_symbols(i, sym) {
@@ -396,17 +470,287 @@ int conf_read(const char *name)
return 0;
}
+/*
+ * 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)
+{
+ const char *p = value;
+ size_t l;
+
+ 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;
+ }
+}
+
+static struct conf_printer kconfig_printer_cb =
+{
+ .print_symbol = kconfig_print_symbol,
+ .print_comment = kconfig_print_comment,
+};
+
+/*
+ * 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: {
+ const char *suffix = "";
+
+ switch (*value) {
+ case 'n':
+ if (getenv("KCONFIG_NEGATIVES")) {
+ fprintf(fp, "#define %s%s%s 0\n",
+ CONFIG_, sym->name, suffix);
+ }
+ break;
+ case 'm':
+ suffix = "_MODULE";
+ /* fall through */
+ default:
+ fprintf(fp, "#define %s%s%s 1\n",
+ CONFIG_, sym->name, suffix);
+ }
+ break;
+ }
+ case S_HEX: {
+ const char *prefix = "";
+
+ if (!value || (value[0] == '\0')) {
+ value = "0";
+ } else
+ 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_INT:
+ if (!value || (value[0] == '\0')) {
+ value = "0";
+ }
+ /* fall through */
+ case S_STRING:
+ 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,
+};
+
+/*
+ * 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' || arg == NULL))
+ 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.
+ */
+int conf_write_defconfig(const char *filename)
+{
+ struct symbol *sym;
+ struct menu *menu;
+ FILE *out;
+
+ out = fopen(filename, "w");
+ if (!out)
+ return 1;
+
+ sym_clear_all_valid();
+
+ /* Traverse all menus to find all relevant symbols */
+ menu = rootmenu.list;
+
+ while (menu != NULL)
+ {
+ sym = menu->sym;
+ if (sym == NULL) {
+ if (!menu_is_visible(menu))
+ goto next_menu;
+ } else if (!sym_is_choice(sym)) {
+ sym_calc_value(sym);
+ if (!(sym->flags & SYMBOL_WRITE))
+ goto next_menu;
+ sym->flags &= ~SYMBOL_WRITE;
+ /* If we cannot change the symbol - skip */
+ if (!sym_is_changable(sym))
+ goto next_menu;
+ /* If symbol equals to default value - skip */
+ if (strcmp(sym_get_string_value(sym), sym_get_string_default(sym)) == 0)
+ goto next_menu;
+
+ /*
+ * If symbol is a choice value and equals to the
+ * default for a choice - skip.
+ * But only if value is bool and equal to "y" and
+ * choice is not "optional".
+ * (If choice is "optional" then all values can be "n")
+ */
+ if (sym_is_choice_value(sym)) {
+ struct symbol *cs;
+ struct symbol *ds;
+
+ cs = prop_get_symbol(sym_get_choice_prop(sym));
+ ds = sym_choice_default(cs);
+ if (!sym_is_optional(cs) && sym == ds) {
+ if ((sym->type == S_BOOLEAN) &&
+ sym_get_tristate_value(sym) == yes)
+ goto next_menu;
+ }
+ }
+ conf_write_symbol(out, sym, &kconfig_printer_cb, NULL);
+ }
+next_menu:
+ if (menu->list != NULL) {
+ menu = menu->list;
+ }
+ else if (menu->next != NULL) {
+ menu = menu->next;
+ } else {
+ while ((menu = menu->parent)) {
+ if (menu->next != NULL) {
+ menu = menu->next;
+ break;
+ }
+ }
+ }
+ }
+ fclose(out);
+ return 0;
+}
+
int conf_write(const char *name)
{
FILE *out;
struct symbol *sym;
struct menu *menu;
const char *basename;
- char dirname[128], tmpname[128], newname[128];
- int type, l;
const char *str;
- 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;
@@ -443,21 +787,7 @@ int conf_write(const char *name)
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"
- "# coreboot version: %s\n"
- "%s%s"
- "#\n"),
- getenv("KERNELVERSION")?getenv("KERNELVERSION"):"",
- use_timestamp ? "# " : "",
- use_timestamp ? ctime(&now) : "");
+ conf_write_heading(out, &kconfig_printer_cb, NULL);
if (!conf_get_changed())
sym_clear_all_valid();
@@ -478,56 +808,11 @@ int conf_write(const char *name)
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;
- }
- switch (type) {
- case S_BOOLEAN:
- case S_TRISTATE:
- switch (sym_get_tristate_value(sym)) {
- case 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);
- break;
- }
- break;
- case S_STRING:
- str = sym_get_string_value(sym);
- fprintf(out, "CONFIG_%s=\"", sym->name);
- while (1) {
- l = strcspn(str, "\"\\");
- if (l) {
- fwrite(str, l, 1, out);
- str += l;
- }
- if (!*str)
- break;
- fprintf(out, "\\%c", *str++);
- }
- fputs("\"\n", out);
- break;
- case S_HEX:
- str = sym_get_string_value(sym);
- if (str[0] != '0' || (str[1] != 'x' && str[1] != 'X')) {
- fprintf(out, "CONFIG_%s=%s\n", sym->name, str);
- break;
- }
- case S_INT:
- str = sym_get_string_value(sym);
- fprintf(out, "CONFIG_%s=%s\n", sym->name, str);
- break;
- }
+
+ conf_write_symbol(out, sym, &kconfig_printer_cb, NULL);
}
- next:
+next:
if (menu->list) {
menu = menu->list;
continue;
@@ -546,35 +831,36 @@ int conf_write(const char *name)
if (*tmpname) {
strcat(dirname, basename);
strcat(dirname, ".old");
- UNLINK_IF_NECESSARY(dirname);
rename(newname, dirname);
if (rename(tmpname, newname))
return 1;
}
- printf(_("#\n"
- "# configuration written to %s\n"
- "#\n"), newname);
+ conf_message(_("configuration written to %s"), newname);
sym_set_change_count(0);
return 0;
}
-int conf_split_config(void)
+static int conf_split_config(void)
{
- char *name, path[128];
+ const char *name;
+ char path[PATH_MAX+1];
+ char pwd[PATH_MAX+1];
char *s, *d, c;
struct symbol *sym;
struct stat sb;
int res, i, fd;
- name = getenv("KCONFIG_AUTOCONFIG");
- if (!name)
- name = "include/config/auto.conf";
+ name = conf_get_autoconfig_name();
conf_read_simple(name, S_DEF_AUTO);
- if (chdir("build"))
+ getcwd(pwd, sizeof(pwd));
+ name = getenv("KCONFIG_SPLITCONFIG");
+ if (!name)
+ name = "include/config";
+ if (chdir(name))
return 1;
res = 0;
@@ -668,178 +954,108 @@ int conf_split_config(void)
close(fd);
}
out:
- if (chdir("../.."))
+ if (chdir(pwd))
return 1;
return res;
}
-/*
- * Return malloced string the contents of which are a concatenation of the
- * directory name of the first argument and the second argument.
- */
-static char* get_tmp_file_name(const char* base, const char *tmp_name)
-{
- char *file_name, *p;
- /* for sure a few bytes longer than needed */
- int file_name_size = strlen(base) + sizeof(file_name) + 10;
-
- file_name = malloc(file_name_size);
- if (!file_name) {
- fprintf(stderr, "%s:%d: failed to allocate %d bytes\n",
- __FILE__, __LINE__, file_name_size);
- return 0;
- }
-
- strcpy(file_name, base);
- p = strrchr(file_name, '/');
- if (p)
- strcpy(p + 1, tmp_name);
- else
- strcpy(file_name, tmp_name);
-
- return file_name;
-}
-
int conf_write_autoconf(void)
{
struct symbol *sym;
- const char *str;
- char *name;
- FILE *out, *out_h;
- time_t now;
- int i, l;
- char *tmp_conf, *tmp_conf_h;
+ const char *name;
+ FILE *out, *tristate, *out_h;
+ int i;
+ int print_negatives;
- sym_clear_all_valid();
+ print_negatives = getenv("KCONFIG_NEGATIVES") != NULL;
- name = getenv("KCONFIG_AUTOHEADER");
- if (!name)
- name = "include/linux/autoconf.h";
-
- tmp_conf = get_tmp_file_name(name, ".tmpconfig");
- tmp_conf_h = get_tmp_file_name(name, ".tmpconfig.h");
- if (!tmp_conf || !tmp_conf_h)
- return 1;
+ sym_clear_all_valid();
- file_write_dep("build/auto.conf.cmd");
+ char *dep_file = getenv("KCONFIG_DEPENDENCIES");
+ if (!dep_file)
+ dep_file = "include/config/auto.conf.cmd";
+ file_write_dep(dep_file);
-#if 0
if (conf_split_config())
return 1;
-#endif
- out = fopen(tmp_conf, "w");
+ char *tmpconfig_name = strdup(".tmpconfig.XXXXXX");
+ if ((i = mkstemp(tmpconfig_name)) == -1)
+ return 1;
+ out = fdopen(i, "w");
if (!out)
return 1;
- out_h = fopen(tmp_conf_h, "w");
+ char *tmpconfig_triname = strdup(".tmpconfig_tristate.XXXXXX");
+ if ((i = mkstemp(tmpconfig_triname)) == -1)
+ return 1;
+ tristate = fdopen(i, "w");
+ if (!tristate) {
+ fclose(out);
+ return 1;
+ }
+
+ char *tmpconfig_h = strdup(".tmpconfig_tristate.XXXXXX");
+ if ((i = mkstemp(tmpconfig_h)) == -1)
+ return 1;
+ out_h = fdopen(i, "w");
if (!out_h) {
fclose(out);
+ fclose(tristate);
return 1;
}
- sym = sym_lookup("KERNELVERSION", 0);
- sym_calc_value(sym);
- time(&now);
- fprintf(out, "#\n"
- "# Automatically generated make config: don't edit\n"
- "# coreboot version: %s\n"
- "# %s"
- "#\n",
- getenv("KERNELVERSION")?getenv("KERNELVERSION"):"", ctime(&now));
- fprintf(out_h, "/*\n"
- " * Automatically generated C config: don't edit\n"
- " * coreboot version: %s\n"
- " * %s"
- " */\n"
- "#define AUTOCONF_INCLUDED\n",
- getenv("KERNELVERSION")?getenv("KERNELVERSION"):"", 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) {
sym_calc_value(sym);
if (!sym->name)
continue;
- if (!(sym->flags & SYMBOL_WRITE)) {
- if (sym->type == S_BOOLEAN || sym->type == S_HEX
- || sym->type == S_INT)
- fprintf(out_h, "#define CONFIG_%s 0\n",
- sym->name);
+
+ if (!(sym->flags & SYMBOL_WRITE) && !print_negatives)
continue;
- }
- switch (sym->type) {
- case S_BOOLEAN:
- case S_TRISTATE:
- switch (sym_get_tristate_value(sym)) {
- case no:
- fprintf(out, "CONFIG_%s=n\n", sym->name);
- fprintf(out_h, "#define CONFIG_%s 0\n", sym->name);
- break;
- case mod:
- fprintf(out, "CONFIG_%s=m\n", sym->name);
- fprintf(out_h, "#define CONFIG_%s_MODULE 1\n", sym->name);
- break;
- case yes:
- fprintf(out, "CONFIG_%s=y\n", sym->name);
- fprintf(out_h, "#define CONFIG_%s 1\n", sym->name);
- break;
- }
- break;
- case S_STRING:
- str = sym_get_string_value(sym);
- fprintf(out, "CONFIG_%s=\"", sym->name);
- fprintf(out_h, "#define CONFIG_%s \"", sym->name);
- while (1) {
- l = strcspn(str, "\"\\");
- if (l) {
- fwrite(str, l, 1, out);
- fwrite(str, l, 1, out_h);
- str += l;
- }
- if (!*str)
- break;
- fprintf(out, "\\%c", *str);
- fprintf(out_h, "\\%c", *str);
- str++;
- }
- fputs("\"\n", out);
- fputs("\"\n", out_h);
- break;
- case S_HEX:
- str = sym_get_string_value(sym);
- if (str[0] != '0' || (str[1] != 'x' && str[1] != 'X')) {
- fprintf(out, "CONFIG_%s=%s\n", sym->name, str);
- fprintf(out_h, "#define CONFIG_%s 0x%s\n", sym->name, str);
- break;
- }
- case S_INT:
- str = sym_get_string_value(sym);
- fprintf(out, "CONFIG_%s=%s\n", sym->name, str);
- fprintf(out_h, "#define CONFIG_%s %s\n", sym->name, str);
- break;
- default:
- break;
- }
+
+ /* these are safe to write out, so do it all the time */
+ if (!(sym->flags & SYMBOL_WRITE) &&
+ !(sym->type == S_BOOLEAN ||
+ sym->type == S_HEX ||
+ sym->type == S_INT))
+ continue;
+
+ /* write symbol to auto.conf, tristate and header files */
+ conf_write_symbol(out, sym, &kconfig_printer_cb, print_negatives?NULL:(void *)1);
+
+ conf_write_symbol(tristate, sym, &tristate_printer_cb, print_negatives?NULL:(void *)1);
+
+ conf_write_symbol(out_h, sym, &header_printer_cb, NULL);
}
fclose(out);
+ fclose(tristate);
fclose(out_h);
- UNLINK_IF_NECESSARY(name);
- if (rename(tmp_conf_h, name))
+ name = getenv("KCONFIG_AUTOHEADER");
+ if (!name)
+ name = "include/generated/autoconf.h";
+ if (rename(tmpconfig_h, name))
return 1;
- name = getenv("KCONFIG_AUTOCONFIG");
+ name = getenv("KCONFIG_TRISTATE");
if (!name)
- name = "include/config/auto.conf";
+ name = "include/config/tristate.conf";
+ if (rename(tmpconfig_triname, name))
+ return 1;
+ name = conf_get_autoconfig_name();
/*
* This must be the last step, kbuild has a dependency on auto.conf
* and this marks the successful completion of the previous steps.
*/
- UNLINK_IF_NECESSARY(name);
- if (rename(tmp_conf, name))
+ if (rename(tmpconfig_name, name))
return 1;
- free(tmp_conf_h);
- free(tmp_conf);
return 0;
}
@@ -869,3 +1085,199 @@ void conf_set_changed_callback(void (*fn)(void))
{
conf_changed_callback = fn;
}
+
+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;
+}
+
+void set_all_choice_values(struct symbol *csym)
+{
+ struct property *prop;
+ struct symbol *sym;
+ struct expr *e;
+
+ prop = sym_get_choice_prop(csym);
+
+ /*
+ * Set all non-assinged choice values to no
+ */
+ expr_list_for_each_sym(prop->expr, e, sym) {
+ if (!sym_has_value(sym))
+ sym->def[S_DEF_USER].tri = no;
+ }
+ csym->flags |= SYMBOL_DEF_USER;
+ /* clear VALID to get value calculated */
+ csym->flags &= ~(SYMBOL_VALID | SYMBOL_NEED_SET_CHOICE_VALUES);
+}
+
+bool conf_set_all_new_symbols(enum conf_def_mode mode)
+{
+ struct symbol *sym, *csym;
+ int i, cnt, pby, pty, ptm; /* pby: probability of boolean = y
+ * pty: probability of tristate = y
+ * ptm: probability of tristate = m
+ */
+
+ pby = 50; pty = ptm = 33; /* can't go as the default in switch-case
+ * below, otherwise gcc whines about
+ * -Wmaybe-uninitialized */
+ 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 );
+ }
+ }
+ bool has_changed = false;
+
+ 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:
+ if (sym->flags & SYMBOL_ALLNOCONFIG_Y)
+ sym->def[S_DEF_USER].tri = yes;
+ else
+ 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;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-29 14:44:13 +0000