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Kconfig: Load properly auto.conf before writing the results to build/include

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Partial revertion of 6cd6423092. The split
directory structure is still removed but auto.conf is properly loaded.
This commit is contained in:
Roland Dobai 2019-10-10 15:24:45 +02:00
parent 8147d48ec8
commit 26c6583bab
1 changed files with 71 additions and 0 deletions
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71
tools/kconfig/confdata.c
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@ -831,6 +831,74 @@ next:
return 0;
}
static int conf_load_auto_conf(void)
{
const char *name;
char *s, *d, c;
struct symbol *sym;
struct stat sb;
int res, i, fd;
name = conf_get_autoconfig_name();
conf_read_simple(name, S_DEF_AUTO);
sym_calc_value(modules_sym);
res = 0;
for_all_symbols(i, sym) {
sym_calc_value(sym);
if ((sym->flags & SYMBOL_AUTO) || !sym->name)
continue;
if (sym->flags & SYMBOL_WRITE) {
if (sym->flags & SYMBOL_DEF_AUTO) {
/*
* symbol has old and new value,
* so compare them...
*/
switch (sym->type) {
case S_BOOLEAN:
case S_TRISTATE:
if (sym_get_tristate_value(sym) ==
sym->def[S_DEF_AUTO].tri)
continue;
break;
case S_STRING:
case S_HEX:
case S_INT:
if (!strcmp(sym_get_string_value(sym),
sym->def[S_DEF_AUTO].val))
continue;
break;
default:
break;
}
} else {
/*
* If there is no old value, only 'no' (unset)
* is allowed as new value.
*/
switch (sym->type) {
case S_BOOLEAN:
case S_TRISTATE:
if (sym_get_tristate_value(sym) == no)
continue;
break;
default:
break;
}
}
} else if (!(sym->flags & SYMBOL_DEF_AUTO))
/* There is neither an old nor a new value. */
continue;
/* else
* There is an old value, but no new value ('no' (unset)
* isn't saved in auto.conf, so the old value is always
* different from 'no').
*/
}
out:
return res;
}
int conf_write_autoconf(void)
{
struct symbol *sym;
@ -842,6 +910,9 @@ int conf_write_autoconf(void)
file_write_dep("include/config/auto.conf.cmd");
if (conf_load_auto_conf())
return 1;
out = fopen(".tmpconfig", "w");
if (!out)
return 1;