diff options
Diffstat (limited to 'scripts/kconfig')
| -rw-r--r-- | scripts/kconfig/conf.c | 54 |
1 files changed, 31 insertions, 23 deletions
diff --git a/scripts/kconfig/conf.c b/scripts/kconfig/conf.c index 957d2a0832f7..063c9e7a34c1 100644 --- a/scripts/kconfig/conf.c +++ b/scripts/kconfig/conf.c @@ -82,6 +82,36 @@ static void xfgets(char *str, int size, FILE *in) printf("%s", str); } +static void set_randconfig_seed(void) +{ + unsigned int seed; + char *env; + bool seed_set = false; + + env = getenv("KCONFIG_SEED"); + if (env && *env) { + char *endp; + + seed = strtol(env, &endp, 0); + if (*endp == '\0') + seed_set = true; + } + + if (!seed_set) { + struct timeval now; + + /* + * Use microseconds derived seed, compensate for systems where it may + * be zero. + */ + gettimeofday(&now, NULL); + seed = (now.tv_sec + 1) * (now.tv_usec + 1); + } + + printf("KCONFIG_SEED=0x%X\n", seed); + srand(seed); +} + static int conf_askvalue(struct symbol *sym, const char *def) { if (!sym_has_value(sym)) @@ -515,30 +545,8 @@ int main(int ac, char **av) defconfig_file = optarg; break; case randconfig: - { - struct timeval now; - unsigned int seed; - char *seed_env; - - /* - * Use microseconds derived seed, - * compensate for systems where it may be zero - */ - gettimeofday(&now, NULL); - seed = (unsigned int)((now.tv_sec + 1) * (now.tv_usec + 1)); - - seed_env = getenv("KCONFIG_SEED"); - if( seed_env && *seed_env ) { - char *endp; - int tmp = (int)strtol(seed_env, &endp, 0); - if (*endp == '\0') { - seed = tmp; - } - } - fprintf( stderr, "KCONFIG_SEED=0x%X\n", seed ); - srand(seed); + set_randconfig_seed(); break; - } case oldaskconfig: case oldconfig: case allnoconfig: |