The "select" statement in Kconfig files allows the enabling of options even if they have unmet direct dependencies (i.e. "depends on" expands to "no"). Currently, the "depends on" clauses are used in calculating the visibility but they do not affect the reverse dependencies in any way. The patch introduces additional tracking of the "depends on" statements and prints a warning on selecting an option if its direct dependencies are not met. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
998 lines
20 KiB
C
998 lines
20 KiB
C
/*
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* Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
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* Released under the terms of the GNU GPL v2.0.
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*/
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#include <ctype.h>
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#include <stdlib.h>
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#include <string.h>
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#include <regex.h>
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#include <sys/utsname.h>
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#define LKC_DIRECT_LINK
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#include "lkc.h"
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struct symbol symbol_yes = {
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.name = "y",
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.curr = { "y", yes },
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.flags = SYMBOL_CONST|SYMBOL_VALID,
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}, symbol_mod = {
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.name = "m",
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.curr = { "m", mod },
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.flags = SYMBOL_CONST|SYMBOL_VALID,
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}, symbol_no = {
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.name = "n",
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.curr = { "n", no },
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.flags = SYMBOL_CONST|SYMBOL_VALID,
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}, symbol_empty = {
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.name = "",
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.curr = { "", no },
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.flags = SYMBOL_VALID,
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};
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struct symbol *sym_defconfig_list;
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struct symbol *modules_sym;
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tristate modules_val;
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struct expr *sym_env_list;
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static void sym_add_default(struct symbol *sym, const char *def)
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{
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struct property *prop = prop_alloc(P_DEFAULT, sym);
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prop->expr = expr_alloc_symbol(sym_lookup(def, SYMBOL_CONST));
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}
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void sym_init(void)
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{
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struct symbol *sym;
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struct utsname uts;
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static bool inited = false;
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if (inited)
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return;
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inited = true;
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uname(&uts);
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sym = sym_lookup("UNAME_RELEASE", 0);
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sym->type = S_STRING;
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sym->flags |= SYMBOL_AUTO;
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sym_add_default(sym, uts.release);
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}
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enum symbol_type sym_get_type(struct symbol *sym)
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{
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enum symbol_type type = sym->type;
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if (type == S_TRISTATE) {
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if (sym_is_choice_value(sym) && sym->visible == yes)
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type = S_BOOLEAN;
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else if (modules_val == no)
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type = S_BOOLEAN;
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}
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return type;
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}
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const char *sym_type_name(enum symbol_type type)
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{
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switch (type) {
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case S_BOOLEAN:
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return "boolean";
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case S_TRISTATE:
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return "tristate";
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case S_INT:
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return "integer";
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case S_HEX:
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return "hex";
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case S_STRING:
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return "string";
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case S_UNKNOWN:
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return "unknown";
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case S_OTHER:
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break;
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}
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return "???";
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}
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struct property *sym_get_choice_prop(struct symbol *sym)
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{
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struct property *prop;
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for_all_choices(sym, prop)
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return prop;
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return NULL;
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}
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struct property *sym_get_env_prop(struct symbol *sym)
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{
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struct property *prop;
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for_all_properties(sym, prop, P_ENV)
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return prop;
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return NULL;
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}
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struct property *sym_get_default_prop(struct symbol *sym)
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{
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struct property *prop;
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for_all_defaults(sym, prop) {
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prop->visible.tri = expr_calc_value(prop->visible.expr);
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if (prop->visible.tri != no)
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return prop;
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}
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return NULL;
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}
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static struct property *sym_get_range_prop(struct symbol *sym)
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{
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struct property *prop;
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for_all_properties(sym, prop, P_RANGE) {
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prop->visible.tri = expr_calc_value(prop->visible.expr);
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if (prop->visible.tri != no)
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return prop;
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}
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return NULL;
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}
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static int sym_get_range_val(struct symbol *sym, int base)
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{
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sym_calc_value(sym);
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switch (sym->type) {
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case S_INT:
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base = 10;
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break;
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case S_HEX:
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base = 16;
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break;
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default:
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break;
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}
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return strtol(sym->curr.val, NULL, base);
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}
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static void sym_validate_range(struct symbol *sym)
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{
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struct property *prop;
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int base, val, val2;
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char str[64];
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switch (sym->type) {
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case S_INT:
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base = 10;
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break;
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case S_HEX:
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base = 16;
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break;
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default:
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return;
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}
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prop = sym_get_range_prop(sym);
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if (!prop)
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return;
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val = strtol(sym->curr.val, NULL, base);
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val2 = sym_get_range_val(prop->expr->left.sym, base);
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if (val >= val2) {
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val2 = sym_get_range_val(prop->expr->right.sym, base);
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if (val <= val2)
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return;
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}
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if (sym->type == S_INT)
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sprintf(str, "%d", val2);
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else
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sprintf(str, "0x%x", val2);
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sym->curr.val = strdup(str);
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}
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static void sym_calc_visibility(struct symbol *sym)
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{
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struct property *prop;
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tristate tri;
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/* any prompt visible? */
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tri = no;
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for_all_prompts(sym, prop) {
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prop->visible.tri = expr_calc_value(prop->visible.expr);
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tri = EXPR_OR(tri, prop->visible.tri);
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}
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if (tri == mod && (sym->type != S_TRISTATE || modules_val == no))
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tri = yes;
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if (sym->visible != tri) {
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sym->visible = tri;
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sym_set_changed(sym);
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}
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if (sym_is_choice_value(sym))
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return;
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/* defaulting to "yes" if no explicit "depends on" are given */
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tri = yes;
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if (sym->dir_dep.expr)
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tri = expr_calc_value(sym->dir_dep.expr);
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if (tri == mod)
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tri = yes;
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if (sym->dir_dep.tri != tri) {
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sym->dir_dep.tri = tri;
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sym_set_changed(sym);
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}
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tri = no;
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if (sym->rev_dep.expr)
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tri = expr_calc_value(sym->rev_dep.expr);
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if (tri == mod && sym_get_type(sym) == S_BOOLEAN)
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tri = yes;
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if (sym->rev_dep.tri != tri) {
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sym->rev_dep.tri = tri;
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sym_set_changed(sym);
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}
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}
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static struct symbol *sym_calc_choice(struct symbol *sym)
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{
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struct symbol *def_sym;
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struct property *prop;
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struct expr *e;
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/* is the user choice visible? */
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def_sym = sym->def[S_DEF_USER].val;
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if (def_sym) {
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sym_calc_visibility(def_sym);
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if (def_sym->visible != no)
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return def_sym;
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}
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/* any of the defaults visible? */
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for_all_defaults(sym, prop) {
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prop->visible.tri = expr_calc_value(prop->visible.expr);
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if (prop->visible.tri == no)
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continue;
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def_sym = prop_get_symbol(prop);
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sym_calc_visibility(def_sym);
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if (def_sym->visible != no)
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return def_sym;
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}
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/* just get the first visible value */
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prop = sym_get_choice_prop(sym);
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expr_list_for_each_sym(prop->expr, e, def_sym) {
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sym_calc_visibility(def_sym);
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if (def_sym->visible != no)
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return def_sym;
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}
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/* no choice? reset tristate value */
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sym->curr.tri = no;
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return NULL;
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}
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void sym_calc_value(struct symbol *sym)
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{
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struct symbol_value newval, oldval;
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struct property *prop;
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struct expr *e;
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if (!sym)
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return;
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if (sym->flags & SYMBOL_VALID)
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return;
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sym->flags |= SYMBOL_VALID;
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oldval = sym->curr;
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switch (sym->type) {
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case S_INT:
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case S_HEX:
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case S_STRING:
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newval = symbol_empty.curr;
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break;
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case S_BOOLEAN:
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case S_TRISTATE:
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newval = symbol_no.curr;
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break;
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default:
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sym->curr.val = sym->name;
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sym->curr.tri = no;
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return;
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}
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if (!sym_is_choice_value(sym))
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sym->flags &= ~SYMBOL_WRITE;
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sym_calc_visibility(sym);
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/* set default if recursively called */
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sym->curr = newval;
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switch (sym_get_type(sym)) {
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case S_BOOLEAN:
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case S_TRISTATE:
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if (sym_is_choice_value(sym) && sym->visible == yes) {
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prop = sym_get_choice_prop(sym);
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newval.tri = (prop_get_symbol(prop)->curr.val == sym) ? yes : no;
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} else {
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if (sym->visible != no) {
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/* if the symbol is visible use the user value
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* if available, otherwise try the default value
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*/
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sym->flags |= SYMBOL_WRITE;
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if (sym_has_value(sym)) {
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newval.tri = EXPR_AND(sym->def[S_DEF_USER].tri,
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sym->visible);
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goto calc_newval;
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}
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}
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if (sym->rev_dep.tri != no)
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sym->flags |= SYMBOL_WRITE;
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if (!sym_is_choice(sym)) {
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prop = sym_get_default_prop(sym);
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if (prop) {
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sym->flags |= SYMBOL_WRITE;
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newval.tri = EXPR_AND(expr_calc_value(prop->expr),
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prop->visible.tri);
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}
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}
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calc_newval:
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if (sym->dir_dep.tri == no && sym->rev_dep.tri != no) {
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fprintf(stderr, "warning: (");
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expr_fprint(sym->rev_dep.expr, stderr);
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fprintf(stderr, ") selects %s which has unmet direct dependencies (",
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sym->name);
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expr_fprint(sym->dir_dep.expr, stderr);
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fprintf(stderr, ")\n");
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}
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newval.tri = EXPR_OR(newval.tri, sym->rev_dep.tri);
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}
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if (newval.tri == mod && sym_get_type(sym) == S_BOOLEAN)
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newval.tri = yes;
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break;
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case S_STRING:
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case S_HEX:
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case S_INT:
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if (sym->visible != no) {
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sym->flags |= SYMBOL_WRITE;
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if (sym_has_value(sym)) {
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newval.val = sym->def[S_DEF_USER].val;
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break;
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}
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}
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prop = sym_get_default_prop(sym);
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if (prop) {
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struct symbol *ds = prop_get_symbol(prop);
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if (ds) {
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sym->flags |= SYMBOL_WRITE;
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sym_calc_value(ds);
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newval.val = ds->curr.val;
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}
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}
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break;
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default:
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;
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}
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sym->curr = newval;
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if (sym_is_choice(sym) && newval.tri == yes)
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sym->curr.val = sym_calc_choice(sym);
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sym_validate_range(sym);
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if (memcmp(&oldval, &sym->curr, sizeof(oldval))) {
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sym_set_changed(sym);
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if (modules_sym == sym) {
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sym_set_all_changed();
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modules_val = modules_sym->curr.tri;
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}
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}
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if (sym_is_choice(sym)) {
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struct symbol *choice_sym;
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int flags = sym->flags & (SYMBOL_CHANGED | SYMBOL_WRITE);
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prop = sym_get_choice_prop(sym);
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expr_list_for_each_sym(prop->expr, e, choice_sym) {
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choice_sym->flags |= flags;
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if (flags & SYMBOL_CHANGED)
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sym_set_changed(choice_sym);
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}
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}
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if (sym->flags & SYMBOL_AUTO)
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sym->flags &= ~SYMBOL_WRITE;
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}
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void sym_clear_all_valid(void)
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{
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struct symbol *sym;
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int i;
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for_all_symbols(i, sym)
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sym->flags &= ~SYMBOL_VALID;
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sym_add_change_count(1);
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if (modules_sym)
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sym_calc_value(modules_sym);
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}
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void sym_set_changed(struct symbol *sym)
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{
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struct property *prop;
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sym->flags |= SYMBOL_CHANGED;
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for (prop = sym->prop; prop; prop = prop->next) {
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if (prop->menu)
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prop->menu->flags |= MENU_CHANGED;
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}
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}
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void sym_set_all_changed(void)
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{
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struct symbol *sym;
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int i;
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for_all_symbols(i, sym)
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sym_set_changed(sym);
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}
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bool sym_tristate_within_range(struct symbol *sym, tristate val)
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{
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int type = sym_get_type(sym);
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if (sym->visible == no)
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return false;
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if (type != S_BOOLEAN && type != S_TRISTATE)
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return false;
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if (type == S_BOOLEAN && val == mod)
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return false;
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if (sym->visible <= sym->rev_dep.tri)
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return false;
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if (sym_is_choice_value(sym) && sym->visible == yes)
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return val == yes;
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return val >= sym->rev_dep.tri && val <= sym->visible;
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}
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bool sym_set_tristate_value(struct symbol *sym, tristate val)
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{
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tristate oldval = sym_get_tristate_value(sym);
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if (oldval != val && !sym_tristate_within_range(sym, val))
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return false;
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if (!(sym->flags & SYMBOL_DEF_USER)) {
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sym->flags |= SYMBOL_DEF_USER;
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sym_set_changed(sym);
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}
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/*
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* setting a choice value also resets the new flag of the choice
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* symbol and all other choice values.
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*/
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if (sym_is_choice_value(sym) && val == yes) {
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struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym));
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struct property *prop;
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struct expr *e;
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cs->def[S_DEF_USER].val = sym;
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cs->flags |= SYMBOL_DEF_USER;
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prop = sym_get_choice_prop(cs);
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for (e = prop->expr; e; e = e->left.expr) {
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if (e->right.sym->visible != no)
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e->right.sym->flags |= SYMBOL_DEF_USER;
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}
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}
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sym->def[S_DEF_USER].tri = val;
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if (oldval != val)
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sym_clear_all_valid();
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return true;
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}
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tristate sym_toggle_tristate_value(struct symbol *sym)
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{
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tristate oldval, newval;
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oldval = newval = sym_get_tristate_value(sym);
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do {
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switch (newval) {
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case no:
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newval = mod;
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break;
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case mod:
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newval = yes;
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break;
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case yes:
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newval = no;
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break;
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}
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if (sym_set_tristate_value(sym, newval))
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break;
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} while (oldval != newval);
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return newval;
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}
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bool sym_string_valid(struct symbol *sym, const char *str)
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{
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signed char ch;
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switch (sym->type) {
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case S_STRING:
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return true;
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case S_INT:
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ch = *str++;
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if (ch == '-')
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ch = *str++;
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if (!isdigit(ch))
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return false;
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if (ch == '0' && *str != 0)
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return false;
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while ((ch = *str++)) {
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if (!isdigit(ch))
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return false;
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}
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return true;
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case S_HEX:
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if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X'))
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str += 2;
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ch = *str++;
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do {
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if (!isxdigit(ch))
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return false;
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} while ((ch = *str++));
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return true;
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case S_BOOLEAN:
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case S_TRISTATE:
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switch (str[0]) {
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case 'y': case 'Y':
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case 'm': case 'M':
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case 'n': case 'N':
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return true;
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}
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return false;
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default:
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return false;
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}
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}
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bool sym_string_within_range(struct symbol *sym, const char *str)
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{
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struct property *prop;
|
|
int val;
|
|
|
|
switch (sym->type) {
|
|
case S_STRING:
|
|
return sym_string_valid(sym, str);
|
|
case S_INT:
|
|
if (!sym_string_valid(sym, str))
|
|
return false;
|
|
prop = sym_get_range_prop(sym);
|
|
if (!prop)
|
|
return true;
|
|
val = strtol(str, NULL, 10);
|
|
return val >= sym_get_range_val(prop->expr->left.sym, 10) &&
|
|
val <= sym_get_range_val(prop->expr->right.sym, 10);
|
|
case S_HEX:
|
|
if (!sym_string_valid(sym, str))
|
|
return false;
|
|
prop = sym_get_range_prop(sym);
|
|
if (!prop)
|
|
return true;
|
|
val = strtol(str, NULL, 16);
|
|
return val >= sym_get_range_val(prop->expr->left.sym, 16) &&
|
|
val <= sym_get_range_val(prop->expr->right.sym, 16);
|
|
case S_BOOLEAN:
|
|
case S_TRISTATE:
|
|
switch (str[0]) {
|
|
case 'y': case 'Y':
|
|
return sym_tristate_within_range(sym, yes);
|
|
case 'm': case 'M':
|
|
return sym_tristate_within_range(sym, mod);
|
|
case 'n': case 'N':
|
|
return sym_tristate_within_range(sym, no);
|
|
}
|
|
return false;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
bool sym_set_string_value(struct symbol *sym, const char *newval)
|
|
{
|
|
const char *oldval;
|
|
char *val;
|
|
int size;
|
|
|
|
switch (sym->type) {
|
|
case S_BOOLEAN:
|
|
case S_TRISTATE:
|
|
switch (newval[0]) {
|
|
case 'y': case 'Y':
|
|
return sym_set_tristate_value(sym, yes);
|
|
case 'm': case 'M':
|
|
return sym_set_tristate_value(sym, mod);
|
|
case 'n': case 'N':
|
|
return sym_set_tristate_value(sym, no);
|
|
}
|
|
return false;
|
|
default:
|
|
;
|
|
}
|
|
|
|
if (!sym_string_within_range(sym, newval))
|
|
return false;
|
|
|
|
if (!(sym->flags & SYMBOL_DEF_USER)) {
|
|
sym->flags |= SYMBOL_DEF_USER;
|
|
sym_set_changed(sym);
|
|
}
|
|
|
|
oldval = sym->def[S_DEF_USER].val;
|
|
size = strlen(newval) + 1;
|
|
if (sym->type == S_HEX && (newval[0] != '0' || (newval[1] != 'x' && newval[1] != 'X'))) {
|
|
size += 2;
|
|
sym->def[S_DEF_USER].val = val = malloc(size);
|
|
*val++ = '0';
|
|
*val++ = 'x';
|
|
} else if (!oldval || strcmp(oldval, newval))
|
|
sym->def[S_DEF_USER].val = val = malloc(size);
|
|
else
|
|
return true;
|
|
|
|
strcpy(val, newval);
|
|
free((void *)oldval);
|
|
sym_clear_all_valid();
|
|
|
|
return true;
|
|
}
|
|
|
|
const char *sym_get_string_value(struct symbol *sym)
|
|
{
|
|
tristate val;
|
|
|
|
switch (sym->type) {
|
|
case S_BOOLEAN:
|
|
case S_TRISTATE:
|
|
val = sym_get_tristate_value(sym);
|
|
switch (val) {
|
|
case no:
|
|
return "n";
|
|
case mod:
|
|
return "m";
|
|
case yes:
|
|
return "y";
|
|
}
|
|
break;
|
|
default:
|
|
;
|
|
}
|
|
return (const char *)sym->curr.val;
|
|
}
|
|
|
|
bool sym_is_changable(struct symbol *sym)
|
|
{
|
|
return sym->visible > sym->rev_dep.tri;
|
|
}
|
|
|
|
static unsigned strhash(const char *s)
|
|
{
|
|
/* fnv32 hash */
|
|
unsigned hash = 2166136261U;
|
|
for (; *s; s++)
|
|
hash = (hash ^ *s) * 0x01000193;
|
|
return hash;
|
|
}
|
|
|
|
struct symbol *sym_lookup(const char *name, int flags)
|
|
{
|
|
struct symbol *symbol;
|
|
char *new_name;
|
|
int hash;
|
|
|
|
if (name) {
|
|
if (name[0] && !name[1]) {
|
|
switch (name[0]) {
|
|
case 'y': return &symbol_yes;
|
|
case 'm': return &symbol_mod;
|
|
case 'n': return &symbol_no;
|
|
}
|
|
}
|
|
hash = strhash(name) % SYMBOL_HASHSIZE;
|
|
|
|
for (symbol = symbol_hash[hash]; symbol; symbol = symbol->next) {
|
|
if (symbol->name &&
|
|
!strcmp(symbol->name, name) &&
|
|
(flags ? symbol->flags & flags
|
|
: !(symbol->flags & (SYMBOL_CONST|SYMBOL_CHOICE))))
|
|
return symbol;
|
|
}
|
|
new_name = strdup(name);
|
|
} else {
|
|
new_name = NULL;
|
|
hash = 0;
|
|
}
|
|
|
|
symbol = malloc(sizeof(*symbol));
|
|
memset(symbol, 0, sizeof(*symbol));
|
|
symbol->name = new_name;
|
|
symbol->type = S_UNKNOWN;
|
|
symbol->flags |= flags;
|
|
|
|
symbol->next = symbol_hash[hash];
|
|
symbol_hash[hash] = symbol;
|
|
|
|
return symbol;
|
|
}
|
|
|
|
struct symbol *sym_find(const char *name)
|
|
{
|
|
struct symbol *symbol = NULL;
|
|
int hash = 0;
|
|
|
|
if (!name)
|
|
return NULL;
|
|
|
|
if (name[0] && !name[1]) {
|
|
switch (name[0]) {
|
|
case 'y': return &symbol_yes;
|
|
case 'm': return &symbol_mod;
|
|
case 'n': return &symbol_no;
|
|
}
|
|
}
|
|
hash = strhash(name) % SYMBOL_HASHSIZE;
|
|
|
|
for (symbol = symbol_hash[hash]; symbol; symbol = symbol->next) {
|
|
if (symbol->name &&
|
|
!strcmp(symbol->name, name) &&
|
|
!(symbol->flags & SYMBOL_CONST))
|
|
break;
|
|
}
|
|
|
|
return symbol;
|
|
}
|
|
|
|
struct symbol **sym_re_search(const char *pattern)
|
|
{
|
|
struct symbol *sym, **sym_arr = NULL;
|
|
int i, cnt, size;
|
|
regex_t re;
|
|
|
|
cnt = size = 0;
|
|
/* Skip if empty */
|
|
if (strlen(pattern) == 0)
|
|
return NULL;
|
|
if (regcomp(&re, pattern, REG_EXTENDED|REG_NOSUB|REG_ICASE))
|
|
return NULL;
|
|
|
|
for_all_symbols(i, sym) {
|
|
if (sym->flags & SYMBOL_CONST || !sym->name)
|
|
continue;
|
|
if (regexec(&re, sym->name, 0, NULL, 0))
|
|
continue;
|
|
if (cnt + 1 >= size) {
|
|
void *tmp = sym_arr;
|
|
size += 16;
|
|
sym_arr = realloc(sym_arr, size * sizeof(struct symbol *));
|
|
if (!sym_arr) {
|
|
free(tmp);
|
|
return NULL;
|
|
}
|
|
}
|
|
sym_calc_value(sym);
|
|
sym_arr[cnt++] = sym;
|
|
}
|
|
if (sym_arr)
|
|
sym_arr[cnt] = NULL;
|
|
regfree(&re);
|
|
|
|
return sym_arr;
|
|
}
|
|
|
|
|
|
static struct symbol *sym_check_expr_deps(struct expr *e)
|
|
{
|
|
struct symbol *sym;
|
|
|
|
if (!e)
|
|
return NULL;
|
|
switch (e->type) {
|
|
case E_OR:
|
|
case E_AND:
|
|
sym = sym_check_expr_deps(e->left.expr);
|
|
if (sym)
|
|
return sym;
|
|
return sym_check_expr_deps(e->right.expr);
|
|
case E_NOT:
|
|
return sym_check_expr_deps(e->left.expr);
|
|
case E_EQUAL:
|
|
case E_UNEQUAL:
|
|
sym = sym_check_deps(e->left.sym);
|
|
if (sym)
|
|
return sym;
|
|
return sym_check_deps(e->right.sym);
|
|
case E_SYMBOL:
|
|
return sym_check_deps(e->left.sym);
|
|
default:
|
|
break;
|
|
}
|
|
printf("Oops! How to check %d?\n", e->type);
|
|
return NULL;
|
|
}
|
|
|
|
/* return NULL when dependencies are OK */
|
|
static struct symbol *sym_check_sym_deps(struct symbol *sym)
|
|
{
|
|
struct symbol *sym2;
|
|
struct property *prop;
|
|
|
|
sym2 = sym_check_expr_deps(sym->rev_dep.expr);
|
|
if (sym2)
|
|
return sym2;
|
|
|
|
for (prop = sym->prop; prop; prop = prop->next) {
|
|
if (prop->type == P_CHOICE || prop->type == P_SELECT)
|
|
continue;
|
|
sym2 = sym_check_expr_deps(prop->visible.expr);
|
|
if (sym2)
|
|
break;
|
|
if (prop->type != P_DEFAULT || sym_is_choice(sym))
|
|
continue;
|
|
sym2 = sym_check_expr_deps(prop->expr);
|
|
if (sym2)
|
|
break;
|
|
}
|
|
|
|
return sym2;
|
|
}
|
|
|
|
static struct symbol *sym_check_choice_deps(struct symbol *choice)
|
|
{
|
|
struct symbol *sym, *sym2;
|
|
struct property *prop;
|
|
struct expr *e;
|
|
|
|
prop = sym_get_choice_prop(choice);
|
|
expr_list_for_each_sym(prop->expr, e, sym)
|
|
sym->flags |= (SYMBOL_CHECK | SYMBOL_CHECKED);
|
|
|
|
choice->flags |= (SYMBOL_CHECK | SYMBOL_CHECKED);
|
|
sym2 = sym_check_sym_deps(choice);
|
|
choice->flags &= ~SYMBOL_CHECK;
|
|
if (sym2)
|
|
goto out;
|
|
|
|
expr_list_for_each_sym(prop->expr, e, sym) {
|
|
sym2 = sym_check_sym_deps(sym);
|
|
if (sym2) {
|
|
fprintf(stderr, " -> %s", sym->name);
|
|
break;
|
|
}
|
|
}
|
|
out:
|
|
expr_list_for_each_sym(prop->expr, e, sym)
|
|
sym->flags &= ~SYMBOL_CHECK;
|
|
|
|
if (sym2 && sym_is_choice_value(sym2) &&
|
|
prop_get_symbol(sym_get_choice_prop(sym2)) == choice)
|
|
sym2 = choice;
|
|
|
|
return sym2;
|
|
}
|
|
|
|
struct symbol *sym_check_deps(struct symbol *sym)
|
|
{
|
|
struct symbol *sym2;
|
|
struct property *prop;
|
|
|
|
if (sym->flags & SYMBOL_CHECK) {
|
|
fprintf(stderr, "%s:%d:error: found recursive dependency: %s",
|
|
sym->prop->file->name, sym->prop->lineno,
|
|
sym->name ? sym->name : "<choice>");
|
|
return sym;
|
|
}
|
|
if (sym->flags & SYMBOL_CHECKED)
|
|
return NULL;
|
|
|
|
if (sym_is_choice_value(sym)) {
|
|
/* for choice groups start the check with main choice symbol */
|
|
prop = sym_get_choice_prop(sym);
|
|
sym2 = sym_check_deps(prop_get_symbol(prop));
|
|
} else if (sym_is_choice(sym)) {
|
|
sym2 = sym_check_choice_deps(sym);
|
|
} else {
|
|
sym->flags |= (SYMBOL_CHECK | SYMBOL_CHECKED);
|
|
sym2 = sym_check_sym_deps(sym);
|
|
sym->flags &= ~SYMBOL_CHECK;
|
|
}
|
|
|
|
if (sym2) {
|
|
fprintf(stderr, " -> %s", sym->name ? sym->name : "<choice>");
|
|
if (sym2 == sym) {
|
|
fprintf(stderr, "\n");
|
|
zconfnerrs++;
|
|
sym2 = NULL;
|
|
}
|
|
}
|
|
|
|
return sym2;
|
|
}
|
|
|
|
struct property *prop_alloc(enum prop_type type, struct symbol *sym)
|
|
{
|
|
struct property *prop;
|
|
struct property **propp;
|
|
|
|
prop = malloc(sizeof(*prop));
|
|
memset(prop, 0, sizeof(*prop));
|
|
prop->type = type;
|
|
prop->sym = sym;
|
|
prop->file = current_file;
|
|
prop->lineno = zconf_lineno();
|
|
|
|
/* append property to the prop list of symbol */
|
|
if (sym) {
|
|
for (propp = &sym->prop; *propp; propp = &(*propp)->next)
|
|
;
|
|
*propp = prop;
|
|
}
|
|
|
|
return prop;
|
|
}
|
|
|
|
struct symbol *prop_get_symbol(struct property *prop)
|
|
{
|
|
if (prop->expr && (prop->expr->type == E_SYMBOL ||
|
|
prop->expr->type == E_LIST))
|
|
return prop->expr->left.sym;
|
|
return NULL;
|
|
}
|
|
|
|
const char *prop_get_type_name(enum prop_type type)
|
|
{
|
|
switch (type) {
|
|
case P_PROMPT:
|
|
return "prompt";
|
|
case P_ENV:
|
|
return "env";
|
|
case P_COMMENT:
|
|
return "comment";
|
|
case P_MENU:
|
|
return "menu";
|
|
case P_DEFAULT:
|
|
return "default";
|
|
case P_CHOICE:
|
|
return "choice";
|
|
case P_SELECT:
|
|
return "select";
|
|
case P_RANGE:
|
|
return "range";
|
|
case P_UNKNOWN:
|
|
break;
|
|
}
|
|
return "unknown";
|
|
}
|
|
|
|
static void prop_add_env(const char *env)
|
|
{
|
|
struct symbol *sym, *sym2;
|
|
struct property *prop;
|
|
char *p;
|
|
|
|
sym = current_entry->sym;
|
|
sym->flags |= SYMBOL_AUTO;
|
|
for_all_properties(sym, prop, P_ENV) {
|
|
sym2 = prop_get_symbol(prop);
|
|
if (strcmp(sym2->name, env))
|
|
menu_warn(current_entry, "redefining environment symbol from %s",
|
|
sym2->name);
|
|
return;
|
|
}
|
|
|
|
prop = prop_alloc(P_ENV, sym);
|
|
prop->expr = expr_alloc_symbol(sym_lookup(env, SYMBOL_CONST));
|
|
|
|
sym_env_list = expr_alloc_one(E_LIST, sym_env_list);
|
|
sym_env_list->right.sym = sym;
|
|
|
|
p = getenv(env);
|
|
if (p)
|
|
sym_add_default(sym, p);
|
|
else
|
|
menu_warn(current_entry, "environment variable %s undefined", env);
|
|
}
|