kconfig: allow loading multiple configurations

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>

diff --git a/scripts/kconfig/conf.c b/scripts/kconfig/conf.c
index 9334da6..ded5ffe 100644 (file)
--- a/scripts/kconfig/conf.c
+++ b/scripts/kconfig/conf.c
@@ -573,7 +573,7 @@ int main(int ac, char **av)
        case set_random:
                name = getenv("KCONFIG_ALLCONFIG");
                if (name && !stat(name, &tmpstat)) {
-                       conf_read_simple(name);
+                       conf_read_simple(name, S_DEF_USER);
                        break;
                }
                switch (input_mode) {
@@ -584,9 +584,9 @@ int main(int ac, char **av)
                default: break;
                }
                if (!stat(name, &tmpstat))
-                       conf_read_simple(name);
+                       conf_read_simple(name, S_DEF_USER);
                else if (!stat("all.config", &tmpstat))
-                       conf_read_simple("all.config");
+                       conf_read_simple("all.config", S_DEF_USER);
                break;
        default:
                break;

diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index 54ca1a7..ca693fc 100644 (file)
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -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;

diff --git a/scripts/kconfig/expr.h b/scripts/kconfig/expr.h
index 043859d..998cf4f 100644 (file)
--- a/scripts/kconfig/expr.h
+++ b/scripts/kconfig/expr.h
@@ -92,10 +92,14 @@ struct symbol {
 #define SYMBOL_OPTIONAL                0x0100
 #define SYMBOL_WRITE           0x0200
 #define SYMBOL_CHANGED         0x0400
-#define SYMBOL_NEW             0x0800
 #define SYMBOL_AUTO            0x1000
 #define SYMBOL_CHECKED         0x2000
 #define SYMBOL_WARNED          0x8000
+#define SYMBOL_DEF             0x10000
+#define SYMBOL_DEF_USER                0x10000
+#define SYMBOL_DEF2            0x20000
+#define SYMBOL_DEF3            0x40000
+#define SYMBOL_DEF4            0x80000
 
 #define SYMBOL_MAXLENGTH       256
 #define SYMBOL_HASHSIZE                257

diff --git a/scripts/kconfig/gconf.c b/scripts/kconfig/gconf.c
index 9cb3e6a..7b0d3a9 100644 (file)
--- a/scripts/kconfig/gconf.c
+++ b/scripts/kconfig/gconf.c
@@ -132,8 +132,6 @@ const char *dbg_print_flags(int val)
                strcat(buf, "write/");
        if (val & SYMBOL_CHANGED)
                strcat(buf, "changed/");
-       if (val & SYMBOL_NEW)
-               strcat(buf, "new/");
        if (val & SYMBOL_AUTO)
                strcat(buf, "auto/");
 
@@ -1186,9 +1184,7 @@ static gchar **fill_row(struct menu *menu)
 
        row[COL_OPTION] =
            g_strdup_printf("%s %s", menu_get_prompt(menu),
-                           sym ? (sym->
-                                  flags & SYMBOL_NEW ? "(NEW)" : "") :
-                           "");
+                           sym && sym_has_value(sym) ? "(NEW)" : "");
 
        if (show_all && !menu_is_visible(menu))
                row[COL_COLOR] = g_strdup("DarkGray");

diff --git a/scripts/kconfig/lkc.h b/scripts/kconfig/lkc.h
index 527f60c..52c296e 100644 (file)
--- a/scripts/kconfig/lkc.h
+++ b/scripts/kconfig/lkc.h
@@ -137,7 +137,7 @@ static inline bool sym_is_optional(struct symbol *sym)
 
 static inline bool sym_has_value(struct symbol *sym)
 {
-       return sym->flags & SYMBOL_NEW ? false : true;
+       return sym->flags & SYMBOL_DEF_USER ? true : false;
 }
 
 #ifdef __cplusplus

diff --git a/scripts/kconfig/lkc_proto.h b/scripts/kconfig/lkc_proto.h
index bd0fb1d..e195c45 100644 (file)
--- a/scripts/kconfig/lkc_proto.h
+++ b/scripts/kconfig/lkc_proto.h
@@ -2,7 +2,7 @@
 /* confdata.c */
 P(conf_parse,void,(const char *name));
 P(conf_read,int,(const char *name));
-P(conf_read_simple,int,(const char *name));
+P(conf_read_simple,int,(const char *name, int));
 P(conf_write,int,(const char *name));
 P(conf_write_autoconf,int,(void));
 

diff --git a/scripts/kconfig/symbol.c b/scripts/kconfig/symbol.c
index 4ea0050..78a60ba 100644 (file)
--- a/scripts/kconfig/symbol.c
+++ b/scripts/kconfig/symbol.c
@@ -426,8 +426,8 @@ bool sym_set_tristate_value(struct symbol *sym, tristate val)
        if (oldval != val && !sym_tristate_within_range(sym, val))
                return false;
 
-       if (sym->flags & SYMBOL_NEW) {
-               sym->flags &= ~SYMBOL_NEW;
+       if (!(sym->flags & SYMBOL_DEF_USER)) {
+               sym->flags |= SYMBOL_DEF_USER;
                sym_set_changed(sym);
        }
        /*
@@ -440,11 +440,11 @@ bool sym_set_tristate_value(struct symbol *sym, tristate val)
                struct expr *e;
 
                cs->def[S_DEF_USER].val = sym;
-               cs->flags &= ~SYMBOL_NEW;
+               cs->flags |= SYMBOL_DEF_USER;
                prop = sym_get_choice_prop(cs);
                for (e = prop->expr; e; e = e->left.expr) {
                        if (e->right.sym->visible != no)
-                               e->right.sym->flags &= ~SYMBOL_NEW;
+                               e->right.sym->flags |= SYMBOL_DEF_USER;
                }
        }
 
@@ -591,8 +591,8 @@ bool sym_set_string_value(struct symbol *sym, const char *newval)
        if (!sym_string_within_range(sym, newval))
                return false;
 
-       if (sym->flags & SYMBOL_NEW) {
-               sym->flags &= ~SYMBOL_NEW;
+       if (!(sym->flags & SYMBOL_DEF_USER)) {
+               sym->flags |= SYMBOL_DEF_USER;
                sym_set_changed(sym);
        }
 
@@ -679,7 +679,6 @@ struct symbol *sym_lookup(const char *name, int isconst)
        memset(symbol, 0, sizeof(*symbol));
        symbol->name = new_name;
        symbol->type = S_UNKNOWN;
-       symbol->flags = SYMBOL_NEW;
        if (isconst)
                symbol->flags |= SYMBOL_CONST;