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kconfig: allow loading multiple configurations

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Extend conf_read_simple() so it can load multiple configurations.

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
This commit is contained in:
Roman Zippel
2006-06-08 22:12:42 -07:00
committed by Sam Ravnborg
parent 0c1822e699
commit 669bfad906
7 changed files with 84 additions and 62 deletions
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111
scripts/kconfig/confdata.c
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@@ -86,13 +86,13 @@ char *conf_get_default_confname(void)
return name;
}
int conf_read_simple(const char *name)
int conf_read_simple(const char *name, int def)
{
FILE *in = NULL;
char line[1024];
char *p, *p2;
struct symbol *sym;
int i;
int i, def_flags;
if (name) {
in = zconf_fopen(name);
@@ -125,20 +125,21 @@ load:
conf_warnings = 0;
conf_unsaved = 0;
def_flags = SYMBOL_DEF << def;
for_all_symbols(i, sym) {
sym->flags |= SYMBOL_NEW | SYMBOL_CHANGED;
sym->flags |= SYMBOL_CHANGED;
sym->flags &= ~(def_flags|SYMBOL_VALID);
if (sym_is_choice(sym))
sym->flags &= ~SYMBOL_NEW;
sym->flags &= ~SYMBOL_VALID;
sym->flags |= def_flags;
switch (sym->type) {
case S_INT:
case S_HEX:
case S_STRING:
if (sym->def[S_DEF_USER].val)
free(sym->def[S_DEF_USER].val);
if (sym->def[def].val)
free(sym->def[def].val);
default:
sym->def[S_DEF_USER].val = NULL;
sym->def[S_DEF_USER].tri = no;
sym->def[def].val = NULL;
sym->def[def].tri = no;
}
}
@@ -155,19 +156,26 @@ load:
*p++ = 0;
if (strncmp(p, "is not set", 10))
continue;
sym = sym_find(line + 9);
if (!sym) {
conf_warning("trying to assign nonexistent symbol %s", line + 9);
break;
} else if (!(sym->flags & SYMBOL_NEW)) {
if (def == S_DEF_USER) {
sym = sym_find(line + 9);
if (!sym) {
conf_warning("trying to assign nonexistent symbol %s", line + 9);
break;
}
} else {
sym = sym_lookup(line + 9, 0);
if (sym->type == S_UNKNOWN)
sym->type = S_BOOLEAN;
}
if (sym->flags & def_flags) {
conf_warning("trying to reassign symbol %s", sym->name);
break;
}
switch (sym->type) {
case S_BOOLEAN:
case S_TRISTATE:
sym->def[S_DEF_USER].tri = no;
sym->flags &= ~SYMBOL_NEW;
sym->def[def].tri = no;
sym->flags |= def_flags;
break;
default:
;
@@ -185,34 +193,48 @@ load:
p2 = strchr(p, '\n');
if (p2)
*p2 = 0;
sym = sym_find(line + 7);
if (!sym) {
conf_warning("trying to assign nonexistent symbol %s", line + 7);
break;
} else if (!(sym->flags & SYMBOL_NEW)) {
if (def == S_DEF_USER) {
sym = sym_find(line + 7);
if (!sym) {
conf_warning("trying to assign nonexistent symbol %s", line + 7);
break;
}
} else {
sym = sym_lookup(line + 7, 0);
if (sym->type == S_UNKNOWN)
sym->type = S_OTHER;
}
if (sym->flags & def_flags) {
conf_warning("trying to reassign symbol %s", sym->name);
break;
}
switch (sym->type) {
case S_TRISTATE:
if (p[0] == 'm') {
sym->def[S_DEF_USER].tri = mod;
sym->flags &= ~SYMBOL_NEW;
sym->def[def].tri = mod;
sym->flags |= def_flags;
break;
}
case S_BOOLEAN:
if (p[0] == 'y') {
sym->def[S_DEF_USER].tri = yes;
sym->flags &= ~SYMBOL_NEW;
sym->def[def].tri = yes;
sym->flags |= def_flags;
break;
}
if (p[0] == 'n') {
sym->def[S_DEF_USER].tri = no;
sym->flags &= ~SYMBOL_NEW;
sym->def[def].tri = no;
sym->flags |= def_flags;
break;
}
conf_warning("symbol value '%s' invalid for %s", p, sym->name);
break;
case S_OTHER:
if (*p != '"') {
for (p2 = p; *p2 && !isspace(*p2); p2++)
;
sym->type = S_STRING;
goto done;
}
case S_STRING:
if (*p++ != '"')
break;
@@ -229,9 +251,10 @@ load:
}
case S_INT:
case S_HEX:
done:
if (sym_string_valid(sym, p)) {
sym->def[S_DEF_USER].val = strdup(p);
sym->flags &= ~SYMBOL_NEW;
sym->def[def].val = strdup(p);
sym->flags |= def_flags;
} else {
conf_warning("symbol value '%s' invalid for %s", p, sym->name);
continue;
@@ -249,24 +272,24 @@ load:
}
if (sym && sym_is_choice_value(sym)) {
struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym));
switch (sym->def[S_DEF_USER].tri) {
switch (sym->def[def].tri) {
case no:
break;
case mod:
if (cs->def[S_DEF_USER].tri == yes) {
if (cs->def[def].tri == yes) {
conf_warning("%s creates inconsistent choice state", sym->name);
cs->flags |= SYMBOL_NEW;
cs->flags &= ~def_flags;
}
break;
case yes:
if (cs->def[S_DEF_USER].tri != no) {
if (cs->def[def].tri != no) {
conf_warning("%s creates inconsistent choice state", sym->name);
cs->flags |= SYMBOL_NEW;
cs->flags &= ~def_flags;
} else
cs->def[S_DEF_USER].val = sym;
cs->def[def].val = sym;
break;
}
cs->def[S_DEF_USER].tri = E_OR(cs->def[S_DEF_USER].tri, sym->def[S_DEF_USER].tri);
cs->def[def].tri = E_OR(cs->def[def].tri, sym->def[def].tri);
}
}
fclose(in);
@@ -281,11 +304,11 @@ int conf_read(const char *name)
struct symbol *sym;
struct property *prop;
struct expr *e;
int i;
int i, flags;
sym_change_count = 0;
if (conf_read_simple(name))
if (conf_read_simple(name, S_DEF_USER))
return 1;
for_all_symbols(i, sym) {
@@ -314,15 +337,13 @@ int conf_read(const char *name)
sym_ok:
if (sym_has_value(sym) && !sym_is_choice_value(sym)) {
if (sym->visible == no)
sym->flags |= SYMBOL_NEW;
sym->flags &= ~SYMBOL_DEF_USER;
switch (sym->type) {
case S_STRING:
case S_INT:
case S_HEX:
if (!sym_string_within_range(sym, sym->def[S_DEF_USER].val)) {
sym->flags |= SYMBOL_NEW;
sym->flags &= ~SYMBOL_VALID;
}
if (!sym_string_within_range(sym, sym->def[S_DEF_USER].val))
sym->flags &= ~(SYMBOL_VALID|SYMBOL_DEF_USER);
default:
break;
}
@@ -330,9 +351,11 @@ int conf_read(const char *name)
if (!sym_is_choice(sym))
continue;
prop = sym_get_choice_prop(sym);
flags = sym->flags;
for (e = prop->expr; e; e = e->left.expr)
if (e->right.sym->visible != no)
sym->flags |= e->right.sym->flags & SYMBOL_NEW;
flags &= e->right.sym->flags;
sym->flags |= flags & SYMBOL_DEF_USER;
}
sym_change_count += conf_warnings || conf_unsaved;