From 3435c1afb58307240be8e4607b5bb7d239fac4e9 Mon Sep 17 00:00:00 2001 From: Peter Korsgaard Date: Fri, 23 Jul 2010 14:15:18 +0200 Subject: kconfig: implement KCONFIG_PROBABILITY for rand{,package}config rand{,package}config enables configuration options with 50% probability, which isn't always what we want in BR (because the "big" configs take a long time to build and limits the chance of a randconfig detecting a missing dependency), so introduce a KCONFIG_PROBABILITY environment variable to tweak the probability between 0 (all options off) and 100 (all options on). To use, simply set the environment variable before running make or pass it on the make command line - E.G. make randpackageconfig KCONFIG_PROBABILITY=10 Signed-off-by: Peter Korsgaard --- package/config/confdata.c | 22 +++++++++++++++++++--- 1 file changed, 19 insertions(+), 3 deletions(-) diff --git a/package/config/confdata.c b/package/config/confdata.c index 728f708ca..38424702a 100644 --- a/package/config/confdata.c +++ b/package/config/confdata.c @@ -845,7 +845,16 @@ void conf_set_all_new_symbols(enum conf_def_mode mode) struct symbol *sym, *csym; struct property *prop; struct expr *e; - int i, cnt, def; + int i, cnt, def, 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)) @@ -864,8 +873,15 @@ void conf_set_all_new_symbols(enum conf_def_mode mode) 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; -- cgit v1.2.3