diff options
Diffstat (limited to 'config/symbol.c')
| -rw-r--r-- | config/symbol.c | 782 |
1 files changed, 0 insertions, 782 deletions
diff --git a/config/symbol.c b/config/symbol.c deleted file mode 100644 index b9d2c3d2a..000000000 --- a/config/symbol.c +++ /dev/null @@ -1,782 +0,0 @@ -/* - * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org> - * Released under the terms of the GNU GPL v2.0. - */ - -#include <ctype.h> -#include <stdbool.h> -#include <stdlib.h> -#include <string.h> -#include <sys/utsname.h> - -#define LKC_DIRECT_LINK -#include "lkc.h" - -extern int output_mode; - -struct symbol symbol_yes = { - .name = "y", - .curr = { "y", yes }, - .flags = SYMBOL_YES|SYMBOL_VALID, -}, symbol_mod = { - .name = "m", - .curr = { "m", mod }, - .flags = SYMBOL_MOD|SYMBOL_VALID, -}, symbol_no = { - .name = "n", - .curr = { "n", no }, - .flags = SYMBOL_NO|SYMBOL_VALID, -}, symbol_empty = { - .name = "", - .curr = { "", no }, - .flags = SYMBOL_VALID, -}; - -int sym_change_count; -struct symbol *modules_sym; -tristate modules_val; - -void sym_add_default(struct symbol *sym, const char *def) -{ - struct property *prop = prop_alloc(P_DEFAULT, sym); - - prop->expr = expr_alloc_symbol(sym_lookup(def, 1)); -} - -void sym_init(void) -{ - struct symbol *sym; - char *p; - static bool inited = false; - - if (inited) - return; - inited = true; - - sym = sym_lookup("VERSION", 0); - sym->type = S_STRING; - sym->flags |= SYMBOL_AUTO; - p = getenv("VERSION"); - if (p) - sym_add_default(sym, p); - - sym = sym_lookup("TARGET_ARCH", 0); - sym->type = S_STRING; - sym->flags |= SYMBOL_AUTO; - p = getenv("TARGET_ARCH"); - if (p) - sym_add_default(sym, p); - -} - -enum symbol_type sym_get_type(struct symbol *sym) -{ - enum symbol_type type = sym->type; - - if (type == S_TRISTATE) { - if (sym_is_choice_value(sym) && sym->visible == yes) - type = S_BOOLEAN; - else if (modules_val == no) - type = S_BOOLEAN; - } - return type; -} - -const char *sym_type_name(enum symbol_type type) -{ - switch (type) { - case S_BOOLEAN: - return "boolean"; - case S_TRISTATE: - return "tristate"; - case S_INT: - return "integer"; - case S_HEX: - return "hex"; - case S_STRING: - return "string"; - case S_UNKNOWN: - return "unknown"; - case S_OTHER: - break; - } - return "???"; -} - -struct property *sym_get_choice_prop(struct symbol *sym) -{ - struct property *prop; - - for_all_choices(sym, prop) - return prop; - return NULL; -} - -struct property *sym_get_default_prop(struct symbol *sym) -{ - struct property *prop; - - for_all_defaults(sym, prop) { - prop->visible.tri = expr_calc_value(prop->visible.expr); - if (prop->visible.tri != no || output_mode) - return prop; - } - return NULL; -} - -struct property *sym_get_range_prop(struct symbol *sym) -{ - struct property *prop; - - for_all_properties(sym, prop, P_RANGE) { - prop->visible.tri = expr_calc_value(prop->visible.expr); - if (prop->visible.tri != no) - return prop; - } - return NULL; -} - -static void sym_calc_visibility(struct symbol *sym) -{ - struct property *prop; - tristate tri; - bool deselected = false; - - /* any prompt visible? */ - tri = no; - for_all_prompts(sym, prop) { - prop->visible.tri = expr_calc_value(prop->visible.expr); - tri = E_OR(tri, prop->visible.tri); - } - if (tri == mod && (sym->type != S_TRISTATE || modules_val == no)) - tri = yes; - if (sym->rev_dep_inv.expr && (expr_calc_value(sym->rev_dep_inv.expr) == yes)) { - tri = no; - deselected = true; - } - if (sym->visible != tri) { - sym->visible = tri; - sym_set_changed(sym); - } - if (sym_is_choice_value(sym) || deselected) - return; - tri = no; - if (sym->rev_dep.expr) - tri = expr_calc_value(sym->rev_dep.expr); - if (tri == mod && sym_get_type(sym) == S_BOOLEAN) - tri = yes; - if (sym->rev_dep.tri != tri) { - sym->rev_dep.tri = tri; - sym_set_changed(sym); - } -} - -static struct symbol *sym_calc_choice(struct symbol *sym) -{ - struct symbol *def_sym; - struct property *prop; - struct expr *e; - - /* is the user choice visible? */ - def_sym = sym->user.val; - if (def_sym) { - sym_calc_visibility(def_sym); - if (def_sym->visible != no) - return def_sym; - } - - /* any of the defaults visible? */ - for_all_defaults(sym, prop) { - prop->visible.tri = expr_calc_value(prop->visible.expr); - if (prop->visible.tri == no) - continue; - def_sym = prop_get_symbol(prop); - sym_calc_visibility(def_sym); - if (def_sym->visible != no) - return def_sym; - } - - /* just get the first visible value */ - prop = sym_get_choice_prop(sym); - for (e = prop->expr; e; e = e->left.expr) { - def_sym = e->right.sym; - sym_calc_visibility(def_sym); - if (def_sym->visible != no) - return def_sym; - } - - /* no choice? reset tristate value */ - sym->curr.tri = no; - return NULL; -} - -void sym_calc_value(struct symbol *sym) -{ - struct symbol_value newval, oldval; - struct property *prop; - struct expr *e; - - if (!sym) - return; - - if (sym->flags & SYMBOL_VALID) - return; - sym->flags |= SYMBOL_VALID; - - oldval = sym->curr; - - switch (sym->type) { - case S_INT: - case S_HEX: - case S_STRING: - newval = symbol_empty.curr; - break; - case S_BOOLEAN: - case S_TRISTATE: - newval = symbol_no.curr; - break; - default: - sym->curr.val = sym->name; - sym->curr.tri = no; - return; - } - if (!sym_is_choice_value(sym)) - sym->flags &= ~SYMBOL_WRITE; - - sym_calc_visibility(sym); - - /* set default if recursively called */ - sym->curr = newval; - - switch (sym_get_type(sym)) { - case S_BOOLEAN: - case S_TRISTATE: - if (sym_is_choice_value(sym) && sym->visible == yes) { - prop = sym_get_choice_prop(sym); - newval.tri = (prop_get_symbol(prop)->curr.val == sym) ? yes : no; - } else if (sym->rev_dep_inv.expr && (expr_calc_value(sym->rev_dep_inv.expr) == yes)) { - newval.tri = no; - } else if (E_OR(sym->visible, sym->rev_dep.tri) != no) { - sym->flags |= SYMBOL_WRITE; - if (sym_has_value(sym)) - newval.tri = sym->user.tri; - else if (!sym_is_choice(sym)) { - prop = sym_get_default_prop(sym); - if (prop) - newval.tri = expr_calc_value(prop->expr); - } - newval.tri = E_OR(E_AND(newval.tri, sym->visible), sym->rev_dep.tri); - } else if (!sym_is_choice(sym)) { - prop = sym_get_default_prop(sym); - if (prop) { - sym->flags |= SYMBOL_WRITE; - newval.tri = expr_calc_value(prop->expr); - } - } - if (newval.tri == mod && sym_get_type(sym) == S_BOOLEAN) - newval.tri = yes; - break; - case S_STRING: - case S_HEX: - case S_INT: - if (sym->visible != no) { - sym->flags |= SYMBOL_WRITE; - if (sym_has_value(sym)) { - newval.val = sym->user.val; - break; - } - } - prop = sym_get_default_prop(sym); - if (prop) { - struct symbol *ds = prop_get_symbol(prop); - if (ds) { - sym->flags |= SYMBOL_WRITE; - sym_calc_value(ds); - newval.val = ds->curr.val; - } - } - break; - default: - ; - } - - sym->curr = newval; - if (sym_is_choice(sym) && newval.tri == yes) - sym->curr.val = sym_calc_choice(sym); - - if (memcmp(&oldval, &sym->curr, sizeof(oldval))) - sym_set_changed(sym); - if (modules_sym == sym) - modules_val = modules_sym->curr.tri; - - if (sym_is_choice(sym)) { - int flags = sym->flags & (SYMBOL_CHANGED | SYMBOL_WRITE); - prop = sym_get_choice_prop(sym); - for (e = prop->expr; e; e = e->left.expr) { - e->right.sym->flags |= flags; - if (flags & SYMBOL_CHANGED) - sym_set_changed(e->right.sym); - } - } -} - -void sym_clear_all_valid(void) -{ - struct symbol *sym; - int i; - - for_all_symbols(i, sym) - sym->flags &= ~SYMBOL_VALID; - sym_change_count++; - if (modules_sym) - sym_calc_value(modules_sym); -} - -void sym_set_changed(struct symbol *sym) -{ - struct property *prop; - - sym->flags |= SYMBOL_CHANGED; - for (prop = sym->prop; prop; prop = prop->next) { - if (prop->menu) - prop->menu->flags |= MENU_CHANGED; - } -} - -void sym_set_all_changed(void) -{ - struct symbol *sym; - int i; - - for_all_symbols(i, sym) - sym_set_changed(sym); -} - -bool sym_tristate_within_range(struct symbol *sym, tristate val) -{ - int type = sym_get_type(sym); - - if (sym->visible == no) - return false; - - if (type != S_BOOLEAN && type != S_TRISTATE) - return false; - - if (type == S_BOOLEAN && val == mod) - return false; - if (sym->visible <= sym->rev_dep.tri) - return false; - if (sym_is_choice_value(sym) && sym->visible == yes) - return val == yes; - return val >= sym->rev_dep.tri && val <= sym->visible; -} - -bool sym_set_tristate_value(struct symbol *sym, tristate val) -{ - tristate oldval = sym_get_tristate_value(sym); - - if (oldval != val && !sym_tristate_within_range(sym, val)) - return false; - - if (sym->flags & SYMBOL_NEW) { - sym->flags &= ~SYMBOL_NEW; - sym_set_changed(sym); - } - if (sym_is_choice_value(sym) && val == yes) { - struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym)); - - cs->user.val = sym; - cs->flags &= ~SYMBOL_NEW; - } - - sym->user.tri = val; - if (oldval != val) { - sym_clear_all_valid(); - if (sym == modules_sym) - sym_set_all_changed(); - } - - return true; -} - -tristate sym_toggle_tristate_value(struct symbol *sym) -{ - tristate oldval, newval; - - oldval = newval = sym_get_tristate_value(sym); - do { - switch (newval) { - case no: - newval = mod; - break; - case mod: - newval = yes; - break; - case yes: - newval = no; - break; - } - if (sym_set_tristate_value(sym, newval)) - break; - } while (oldval != newval); - return newval; -} - -bool sym_string_valid(struct symbol *sym, const char *str) -{ - char ch; - - switch (sym->type) { - case S_STRING: - return true; - case S_INT: - ch = *str++; - if (ch == '-') - ch = *str++; - if (!isdigit(ch)) - return false; - if (ch == '0' && *str != 0) - return false; - while ((ch = *str++)) { - if (!isdigit(ch)) - return false; - } - return true; - case S_HEX: - if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) - str += 2; - ch = *str++; - do { - if (!isxdigit(ch)) - return false; - } while ((ch = *str++)); - return true; - case S_BOOLEAN: - case S_TRISTATE: - switch (str[0]) { - case 'y': case 'Y': - case 'm': case 'M': - case 'n': case 'N': - return true; - } - return false; - default: - return false; - } -} - -bool sym_string_within_range(struct symbol *sym, const char *str) -{ - 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 >= strtol(prop->expr->left.sym->name, NULL, 10) && - val <= strtol(prop->expr->right.sym->name, NULL, 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 >= strtol(prop->expr->left.sym->name, NULL, 16) && - val <= strtol(prop->expr->right.sym->name, NULL, 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_NEW) { - sym->flags &= ~SYMBOL_NEW; - sym_set_changed(sym); - } - - oldval = sym->user.val; - size = strlen(newval) + 1; - if (sym->type == S_HEX && (newval[0] != '0' || (newval[1] != 'x' && newval[1] != 'X'))) { - size += 2; - sym->user.val = val = malloc(size); - *val++ = '0'; - *val++ = 'x'; - } else if (!oldval || strcmp(oldval, newval)) - sym->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; -} - -struct symbol *sym_lookup(const char *name, int isconst) -{ - struct symbol *symbol; - const char *ptr; - char *new_name; - int hash = 0; - - 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; - } - } - for (ptr = name; *ptr; ptr++) - hash += *ptr; - hash &= 0xff; - - for (symbol = symbol_hash[hash]; symbol; symbol = symbol->next) { - if (!strcmp(symbol->name, name)) { - if ((isconst && symbol->flags & SYMBOL_CONST) || - (!isconst && !(symbol->flags & SYMBOL_CONST))) - return symbol; - } - } - new_name = strdup(name); - } else { - new_name = NULL; - hash = 256; - } - - symbol = malloc(sizeof(*symbol)); - memset(symbol, 0, sizeof(*symbol)); - symbol->name = new_name; - symbol->type = S_UNKNOWN; - symbol->flags = SYMBOL_NEW; - if (isconst) - symbol->flags |= SYMBOL_CONST; - - symbol->next = symbol_hash[hash]; - symbol_hash[hash] = symbol; - - return symbol; -} - -struct symbol *sym_find(const char *name) -{ - struct symbol *symbol = NULL; - const char *ptr; - 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; - } - } - for (ptr = name; *ptr; ptr++) - hash += *ptr; - hash &= 0xff; - - for (symbol = symbol_hash[hash]; symbol; symbol = symbol->next) { - if (!strcmp(symbol->name, name) && - !(symbol->flags & SYMBOL_CONST)) - break; - } - - return symbol; -} - -struct symbol *sym_check_deps(struct symbol *sym); - -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; -} - -struct symbol *sym_check_deps(struct symbol *sym) -{ - struct symbol *sym2; - struct property *prop; - - if (sym->flags & SYMBOL_CHECK_DONE) - return NULL; - if (sym->flags & SYMBOL_CHECK) { - printf("Warning! Found recursive dependency: %s", sym->name); - return sym; - } - - sym->flags |= (SYMBOL_CHECK | SYMBOL_CHECKED); - sym2 = sym_check_expr_deps(sym->rev_dep.expr); - if (sym2) - goto out; - - for (prop = sym->prop; prop; prop = prop->next) { - if (prop->type == P_CHOICE || prop->type == P_SELECT || prop->type == P_SELECTNOT) - continue; - sym2 = sym_check_expr_deps(prop->visible.expr); - if (sym2) - goto out; - if (prop->type != P_DEFAULT || sym_is_choice(sym)) - continue; - sym2 = sym_check_expr_deps(prop->expr); - if (sym2) - goto out; - } -out: - if (sym2) - printf(" %s", sym->name); - sym->flags &= ~SYMBOL_CHECK; - 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_CHOICE)) - 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_COMMENT: - return "comment"; - case P_MENU: - return "menu"; - case P_DEFAULT: - return "default"; - case P_CHOICE: - return "choice"; - case P_SELECT: - case P_SELECTNOT: - return "select"; - case P_RANGE: - return "range"; - case P_UNKNOWN: - break; - } - return "unknown"; -} |