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-rw-r--r--scripts/kconfig/confdata.c436
1 files changed, 285 insertions, 151 deletions
diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index c4dec80cfd8e..9df80114b47b 100644
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -5,6 +5,7 @@
#include <sys/stat.h>
#include <ctype.h>
+#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
@@ -18,6 +19,9 @@
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;
@@ -34,6 +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");
@@ -170,8 +197,11 @@ 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 +210,8 @@ 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;
}
}
@@ -217,24 +246,23 @@ load:
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;
}
@@ -250,13 +278,8 @@ 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 +290,13 @@ load:
*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;
}
@@ -282,14 +305,12 @@ 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) {
@@ -396,15 +417,151 @@ int conf_read(const char *name)
return 0;
}
+/* Write a S_STRING */
+static void conf_write_string(bool headerfile, const char *name,
+ const char *str, FILE *out)
+{
+ int l;
+ if (headerfile)
+ fprintf(out, "#define %s%s \"", CONFIG_, name);
+ else
+ fprintf(out, "%s%s=\"", CONFIG_, name);
+
+ while (1) {
+ l = strcspn(str, "\"\\");
+ if (l) {
+ xfwrite(str, l, 1, out);
+ str += l;
+ }
+ if (!*str)
+ 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)
+{
+ const char *str;
+
+ switch (type) {
+ case S_BOOLEAN:
+ case S_TRISTATE:
+ switch (sym_get_tristate_value(sym)) {
+ case no:
+ if (write_no)
+ fprintf(out, "# %s%s is not set\n",
+ CONFIG_, sym->name);
+ break;
+ case mod:
+ fprintf(out, "%s%s=m\n", CONFIG_, sym->name);
+ break;
+ case yes:
+ fprintf(out, "%s%s=y\n", CONFIG_, sym->name);
+ break;
+ }
+ break;
+ case S_STRING:
+ conf_write_string(false, sym->name, sym_get_string_value(sym), out);
+ break;
+ case S_HEX:
+ case S_INT:
+ str = sym_get_string_value(sym);
+ fprintf(out, "%s%s=%s\n", CONFIG_, sym->name, str);
+ break;
+ case S_OTHER:
+ case S_UNKNOWN:
+ break;
+ }
+}
+
+/*
+ * 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(sym, sym->type, out, true);
+ }
+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;
+ char dirname[PATH_MAX+1], tmpname[PATH_MAX+1], newname[PATH_MAX+1];
+ enum symbol_type type;
time_t now;
int use_timestamp = 1;
char *env;
@@ -443,8 +600,6 @@ 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)
@@ -452,10 +607,10 @@ int conf_write(const char *name)
fprintf(out, _("#\n"
"# Automatically generated make config: don't edit\n"
- "# Linux kernel version: %s\n"
+ "# %s\n"
"%s%s"
"#\n"),
- sym_get_string_value(sym),
+ rootmenu.prompt->text,
use_timestamp ? "# " : "",
use_timestamp ? ctime(&now) : "");
@@ -484,50 +639,11 @@ int conf_write(const char *name)
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;
- }
+ /* Write config symbol to file */
+ conf_write_symbol(sym, type, out, true);
}
- next:
+next:
if (menu->list) {
menu = menu->list;
continue;
@@ -551,9 +667,7 @@ int conf_write(const char *name)
return 1;
}
- printf(_("#\n"
- "# configuration written to %s\n"
- "#\n"), newname);
+ conf_message(_("configuration written to %s"), newname);
sym_set_change_count(0);
@@ -563,7 +677,7 @@ int conf_write(const char *name)
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;
@@ -679,7 +793,7 @@ int conf_write_autoconf(void)
const char *name;
FILE *out, *tristate, *out_h;
time_t now;
- int i, l;
+ int i;
sym_clear_all_valid();
@@ -705,30 +819,33 @@ int conf_write_autoconf(void)
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"
"# %s"
"#\n",
- sym_get_string_value(sym), ctime(&now));
+ rootmenu.prompt->text, 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"
" * %s"
" */\n"
"#define AUTOCONF_INCLUDED\n",
- sym_get_string_value(sym), ctime(&now));
+ rootmenu.prompt->text, ctime(&now));
for_all_symbols(i, sym) {
sym_calc_value(sym);
if (!(sym->flags & SYMBOL_WRITE) || !sym->name)
continue;
+
+ /* write symbol to config file */
+ conf_write_symbol(sym, sym->type, out, false);
+
+ /* update autoconf and tristate files */
switch (sym->type) {
case S_BOOLEAN:
case S_TRISTATE:
@@ -736,50 +853,34 @@ int conf_write_autoconf(void)
case no:
break;
case mod:
- fprintf(out, "CONFIG_%s=m\n", sym->name);
- fprintf(tristate, "CONFIG_%s=M\n", sym->name);
- fprintf(out_h, "#define CONFIG_%s_MODULE 1\n", sym->name);
+ fprintf(tristate, "%s%s=M\n",
+ CONFIG_, sym->name);
+ fprintf(out_h, "#define %s%s_MODULE 1\n",
+ CONFIG_, sym->name);
break;
case yes:
- fprintf(out, "CONFIG_%s=y\n", sym->name);
if (sym->type == S_TRISTATE)
- fprintf(tristate, "CONFIG_%s=Y\n",
- sym->name);
- fprintf(out_h, "#define CONFIG_%s 1\n", sym->name);
+ fprintf(tristate,"%s%s=Y\n",
+ CONFIG_, sym->name);
+ fprintf(out_h, "#define %s%s 1\n",
+ CONFIG_, 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);
+ 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, "CONFIG_%s=%s\n", sym->name, str);
- fprintf(out_h, "#define CONFIG_%s 0x%s\n", sym->name, str);
+ fprintf(out_h, "#define %s%s 0x%s\n",
+ CONFIG_, 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);
+ fprintf(out_h, "#define %s%s %s\n",
+ CONFIG_, sym->name, str);
break;
default:
break;
@@ -837,13 +938,73 @@ void conf_set_changed_callback(void (*fn)(void))
conf_changed_callback = fn;
}
+static void randomize_choice_values(struct symbol *csym)
+{
+ struct property *prop;
+ struct symbol *sym;
+ struct expr *e;
+ int cnt, def;
-void conf_set_all_new_symbols(enum conf_def_mode mode)
+ /*
+ * If choice is mod then we may have more items slected
+ * and if no then no-one.
+ * In both cases stop.
+ */
+ if (csym->curr.tri != yes)
+ return;
+
+ 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;
+ }
+ }
+ csym->flags |= SYMBOL_DEF_USER;
+ /* clear VALID to get value calculated */
+ csym->flags &= ~(SYMBOL_VALID);
+}
+
+static void set_all_choice_values(struct symbol *csym)
{
- struct symbol *sym, *csym;
struct property *prop;
+ struct symbol *sym;
struct expr *e;
- int i, cnt, def;
+
+ 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);
+}
+
+void conf_set_all_new_symbols(enum conf_def_mode mode)
+{
+ struct symbol *sym, *csym;
+ int i, cnt;
for_all_symbols(i, sym) {
if (sym_has_value(sym))
@@ -862,7 +1023,8 @@ void conf_set_all_new_symbols(enum conf_def_mode mode)
sym->def[S_DEF_USER].tri = no;
break;
case def_random:
- sym->def[S_DEF_USER].tri = (tristate)(rand() % 3);
+ cnt = sym_get_type(sym) == S_TRISTATE ? 3 : 2;
+ sym->def[S_DEF_USER].tri = (tristate)(rand() % cnt);
break;
default:
continue;
@@ -878,8 +1040,6 @@ void conf_set_all_new_symbols(enum conf_def_mode mode)
sym_clear_all_valid();
- if (mode != def_random)
- return;
/*
* We have different type of choice blocks.
* If curr.tri equal to mod then we can select several
@@ -894,35 +1054,9 @@ void conf_set_all_new_symbols(enum conf_def_mode mode)
continue;
sym_calc_value(csym);
-
- if (csym->curr.tri != yes)
- continue;
-
- 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;
- }
- }
- csym->flags |= SYMBOL_DEF_USER;
- /* clear VALID to get value calculated */
- csym->flags &= ~(SYMBOL_VALID);
+ if (mode == def_random)
+ randomize_choice_values(csym);
+ else
+ set_all_choice_values(csym);
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-19 11:59:12 +0000