Merge branch 'for-2010.11/kconfig-upgrade' of git://git.busybox.net/~tpetazzoni/git/buildroot

1 files changed, 44 insertions, 0 deletions

diff --git a/package/config/patches/09-implement-kconfig-probability.patch b/package/config/patches/09-implement-kconfig-probability.patch
new file mode 100644
index 000000000..7561fbc3c
--- /dev/null
+++ b/package/config/patches/09-implement-kconfig-probability.patch
@@ -0,0 +1,44 @@
+---
+ confdata.c |   22 +++++++++++++++++++---
+ 1 file changed, 19 insertions(+), 3 deletions(-)
+
+Index: config/confdata.c
+===================================================================
+--- config.orig/confdata.c
++++ config/confdata.c
+@@ -977,7 +977,16 @@
+ void conf_set_all_new_symbols(enum conf_def_mode mode)
+ {
+ 	struct symbol *sym, *csym;
+-	int i, cnt;
++	int i, cnt, prob = 50;
++
++	if (mode == def_random) {
++		char *endp, *env = getenv("KCONFIG_PROBABILITY");
++		if (env && *env) {
++			int tmp = (int)strtol(env, &endp, 10);
++			if (*endp == '\0' && tmp >= 0 && tmp <= 100)
++				prob = tmp;
++		}
++	}
+ 
+ 	for_all_symbols(i, sym) {
+ 		if (sym_has_value(sym))
+@@ -996,8 +1005,15 @@
+ 				sym->def[S_DEF_USER].tri = no;
+ 				break;
+ 			case def_random:
+-				cnt = sym_get_type(sym) == S_TRISTATE ? 3 : 2;
+-				sym->def[S_DEF_USER].tri = (tristate)(rand() % cnt);
++				cnt = (rand() % 100) - (100 - prob);
++				if (cnt < 0)
++					sym->def[S_DEF_USER].tri = no;
++				else
++					if ((sym_get_type(sym) == S_TRISTATE)
++					    && (cnt > prob/2))
++						sym->def[S_DEF_USER].tri = mod;
++					else
++						sym->def[S_DEF_USER].tri = yes;
+ 				break;
+ 			default:
+ 				continue;