diff options
Diffstat (limited to 'scripts/kconfig/confdata.c')
| -rw-r--r-- | scripts/kconfig/confdata.c | 59 |
1 files changed, 55 insertions, 4 deletions
diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c index 13ddf1126c2a..43eda40c3838 100644 --- a/scripts/kconfig/confdata.c +++ b/scripts/kconfig/confdata.c @@ -1106,10 +1106,54 @@ static void set_all_choice_values(struct symbol *csym) void conf_set_all_new_symbols(enum conf_def_mode mode) { struct symbol *sym, *csym; - int i, cnt; + int i, cnt, pby, pty, ptm; /* pby: probability of boolean = y + * pty: probability of tristate = y + * ptm: probability of tristate = m + */ + + pby = 50; pty = ptm = 33; /* can't go as the default in switch-case + * below, otherwise gcc whines about + * -Wmaybe-uninitialized */ + if (mode == def_random) { + int n, p[3]; + char *env = getenv("KCONFIG_PROBABILITY"); + n = 0; + while( env && *env ) { + char *endp; + int tmp = strtol( env, &endp, 10 ); + if( tmp >= 0 && tmp <= 100 ) { + p[n++] = tmp; + } else { + errno = ERANGE; + perror( "KCONFIG_PROBABILITY" ); + exit( 1 ); + } + env = (*endp == ':') ? endp+1 : endp; + if( n >=3 ) { + break; + } + } + switch( n ) { + case 1: + pby = p[0]; ptm = pby/2; pty = pby-ptm; + break; + case 2: + pty = p[0]; ptm = p[1]; pby = pty + ptm; + break; + case 3: + pby = p[0]; pty = p[1]; ptm = p[2]; + break; + } + + if( pty+ptm > 100 ) { + errno = ERANGE; + perror( "KCONFIG_PROBABILITY" ); + exit( 1 ); + } + } for_all_symbols(i, sym) { - if (sym_has_value(sym)) + if (sym_has_value(sym) || (sym->flags & SYMBOL_VALID)) continue; switch (sym_get_type(sym)) { case S_BOOLEAN: @@ -1125,8 +1169,15 @@ 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); + sym->def[S_DEF_USER].tri = no; + cnt = rand() % 100; + if (sym->type == S_TRISTATE) { + if (cnt < pty) + sym->def[S_DEF_USER].tri = yes; + else if (cnt < (pty+ptm)) + sym->def[S_DEF_USER].tri = mod; + } else if (cnt < pby) + sym->def[S_DEF_USER].tri = yes; break; default: continue; |