Add a recent kconfig version to coreinfo, in order to make the

supported features configurable later (currently unused). Store all
build files and results (coreinfo.elf) in build/ now.

I'm self-acking this as (though non-"trivial") it doesn't affect coreinfo
in its functionality, this is more or less a "cosmetic" change to the
build interface ("make" -> "make menuconfig && make").

This is a kconfig checkout from the Linux kernel (where kconfig is being
actively maintained) from 03/2008. The hash identifying the last commit
to kconfig is 587c90616a5b44e6ccfac38e64d4fecee51d588c.

The amount of changes to kconfig itself has been kept as small as possible
to keep the diff small and to ease updating/porting to newer kconfig versions.
The following changes were performed on the upstream Linux kconfig:

 - s/kernel/coreinfo/, and s/Linux/coreinfo/ in various strings.

 - Consistently use the env. variable KERNELVERSION in all kconfig
   interfaces -- e.g. config/menuconfig/gconfig/xconfig -- as version number.

 - Hardcode our paths/filenames in some places (could be improved upstream).

 - Always write .config and build/config.h, no matter which kconfig
   interface is used (config/menuconfig/gconfig/xconfig). We want to
   include build/config.h in our code.

 - Adapt the kconfig Makefile for our purposes (build/ directory, rules, etc).

In addition, a few items in the coreinfo Makefile are needed for this to work.

This kconfig setup is successfully tested with all targets from 'make help':

  config          - Update current config utilising a line-oriented program
  menuconfig      - Update current config utilising a menu based program
  xconfig         - Update current config utilising a QT based front-end
  gconfig         - Update current config utilising a GTK based front-end
  oldconfig       - Update current config utilising a provided .config as base
  silentoldconfig - Same as oldconfig, but quietly
  randconfig      - New config with random answer to all options
  defconfig       - New config with default answer to all options
  allmodconfig    - New config selecting modules when possible
  allyesconfig    - New config where all options are accepted with yes
  allnoconfig     - New config where all options are answered with no

For 'make defconfig' to work you have to do (which we don't need in coreinfo):

  $ mkdir configs; touch configs/defconfig

You can also use 'make foo_defconfig' in which case kconfig will use a
file called 'configs/foo_defconfig' as basis.

Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3188 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

1 files changed, 202 insertions, 0 deletions

diff --git a/payloads/coreinfo/util/kconfig/expr.h b/payloads/coreinfo/util/kconfig/expr.h
new file mode 100644
index 0000000000..9d4cba1c00
--- /dev/null
+++ b/payloads/coreinfo/util/kconfig/expr.h
@@ -0,0 +1,202 @@
+/*
+ * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
+ * Released under the terms of the GNU GPL v2.0.
+ */
+
+#ifndef EXPR_H
+#define EXPR_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdio.h>
+#ifndef __cplusplus
+#include <stdbool.h>
+#endif
+
+struct file {
+	struct file *next;
+	struct file *parent;
+	char *name;
+	int lineno;
+	int flags;
+};
+
+#define FILE_BUSY		0x0001
+#define FILE_SCANNED		0x0002
+
+typedef enum tristate {
+	no, mod, yes
+} tristate;
+
+enum expr_type {
+	E_NONE, E_OR, E_AND, E_NOT, E_EQUAL, E_UNEQUAL, E_LIST, E_SYMBOL, E_RANGE
+};
+
+union expr_data {
+	struct expr *expr;
+	struct symbol *sym;
+};
+
+struct expr {
+	enum expr_type type;
+	union expr_data left, right;
+};
+
+#define EXPR_OR(dep1, dep2)	(((dep1)>(dep2))?(dep1):(dep2))
+#define EXPR_AND(dep1, dep2)	(((dep1)<(dep2))?(dep1):(dep2))
+#define EXPR_NOT(dep)		(2-(dep))
+
+#define expr_list_for_each_sym(l, e, s) \
+	for (e = (l); e && (s = e->right.sym); e = e->left.expr)
+
+struct expr_value {
+	struct expr *expr;
+	tristate tri;
+};
+
+struct symbol_value {
+	void *val;
+	tristate tri;
+};
+
+enum symbol_type {
+	S_UNKNOWN, S_BOOLEAN, S_TRISTATE, S_INT, S_HEX, S_STRING, S_OTHER
+};
+
+enum {
+	S_DEF_USER,		/* main user value */
+	S_DEF_AUTO,
+};
+
+struct symbol {
+	struct symbol *next;
+	char *name;
+	enum symbol_type type;
+	struct symbol_value curr;
+	struct symbol_value def[4];
+	tristate visible;
+	int flags;
+	struct property *prop;
+	struct expr_value rev_dep;
+};
+
+#define for_all_symbols(i, sym) for (i = 0; i < 257; i++) for (sym = symbol_hash[i]; sym; sym = sym->next) if (sym->type != S_OTHER)
+
+#define SYMBOL_CONST		0x0001
+#define SYMBOL_CHECK		0x0008
+#define SYMBOL_CHOICE		0x0010
+#define SYMBOL_CHOICEVAL	0x0020
+#define SYMBOL_VALID		0x0080
+#define SYMBOL_OPTIONAL		0x0100
+#define SYMBOL_WRITE		0x0200
+#define SYMBOL_CHANGED		0x0400
+#define SYMBOL_AUTO		0x1000
+#define SYMBOL_CHECKED		0x2000
+#define SYMBOL_WARNED		0x8000
+#define SYMBOL_DEF		0x10000
+#define SYMBOL_DEF_USER		0x10000
+#define SYMBOL_DEF_AUTO		0x20000
+#define SYMBOL_DEF3		0x40000
+#define SYMBOL_DEF4		0x80000
+
+#define SYMBOL_MAXLENGTH	256
+#define SYMBOL_HASHSIZE		257
+#define SYMBOL_HASHMASK		0xff
+
+enum prop_type {
+	P_UNKNOWN, P_PROMPT, P_COMMENT, P_MENU, P_DEFAULT, P_CHOICE,
+	P_SELECT, P_RANGE, P_ENV
+};
+
+struct property {
+	struct property *next;
+	struct symbol *sym;
+	enum prop_type type;
+	const char *text;
+	struct expr_value visible;
+	struct expr *expr;
+	struct menu *menu;
+	struct file *file;
+	int lineno;
+};
+
+#define for_all_properties(sym, st, tok) \
+	for (st = sym->prop; st; st = st->next) \
+		if (st->type == (tok))
+#define for_all_defaults(sym, st) for_all_properties(sym, st, P_DEFAULT)
+#define for_all_choices(sym, st) for_all_properties(sym, st, P_CHOICE)
+#define for_all_prompts(sym, st) \
+	for (st = sym->prop; st; st = st->next) \
+		if (st->text)
+
+struct menu {
+	struct menu *next;
+	struct menu *parent;
+	struct menu *list;
+	struct symbol *sym;
+	struct property *prompt;
+	struct expr *dep;
+	unsigned int flags;
+	char *help;
+	struct file *file;
+	int lineno;
+	void *data;
+};
+
+#define MENU_CHANGED		0x0001
+#define MENU_ROOT		0x0002
+
+#ifndef SWIG
+
+extern struct file *file_list;
+extern struct file *current_file;
+struct file *lookup_file(const char *name);
+
+extern struct symbol symbol_yes, symbol_no, symbol_mod;
+extern struct symbol *modules_sym;
+extern struct symbol *sym_defconfig_list;
+extern int cdebug;
+struct expr *expr_alloc_symbol(struct symbol *sym);
+struct expr *expr_alloc_one(enum expr_type type, struct expr *ce);
+struct expr *expr_alloc_two(enum expr_type type, struct expr *e1, struct expr *e2);
+struct expr *expr_alloc_comp(enum expr_type type, struct symbol *s1, struct symbol *s2);
+struct expr *expr_alloc_and(struct expr *e1, struct expr *e2);
+struct expr *expr_alloc_or(struct expr *e1, struct expr *e2);
+struct expr *expr_copy(struct expr *org);
+void expr_free(struct expr *e);
+int expr_eq(struct expr *e1, struct expr *e2);
+void expr_eliminate_eq(struct expr **ep1, struct expr **ep2);
+tristate expr_calc_value(struct expr *e);
+struct expr *expr_eliminate_yn(struct expr *e);
+struct expr *expr_trans_bool(struct expr *e);
+struct expr *expr_eliminate_dups(struct expr *e);
+struct expr *expr_transform(struct expr *e);
+int expr_contains_symbol(struct expr *dep, struct symbol *sym);
+bool expr_depends_symbol(struct expr *dep, struct symbol *sym);
+struct expr *expr_extract_eq_and(struct expr **ep1, struct expr **ep2);
+struct expr *expr_extract_eq_or(struct expr **ep1, struct expr **ep2);
+void expr_extract_eq(enum expr_type type, struct expr **ep, struct expr **ep1, struct expr **ep2);
+struct expr *expr_trans_compare(struct expr *e, enum expr_type type, struct symbol *sym);
+
+void expr_fprint(struct expr *e, FILE *out);
+struct gstr; /* forward */
+void expr_gstr_print(struct expr *e, struct gstr *gs);
+
+static inline int expr_is_yes(struct expr *e)
+{
+	return !e || (e->type == E_SYMBOL && e->left.sym == &symbol_yes);
+}
+
+static inline int expr_is_no(struct expr *e)
+{
+	return e && (e->type == E_SYMBOL && e->left.sym == &symbol_no);
+}
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* EXPR_H */