Except silentoldconfig, valid_stdin is 1, so check_stdin() is no-op.
oldconfig and silentoldconfig work almost in the same way except that
the latter generates additional files. Both ask users for input for
new symbols.
I do not know why only silentoldconfig requires stdio be tty.
$ rm -f .config; touch .config
$ yes "" | make oldconfig > stdout
$ rm -f .config; touch .config
$ yes "" | make silentoldconfig > stdout
make[1]: *** [silentoldconfig] Error 1
make: *** [silentoldconfig] Error 2
$ tail -n 4 stdout
Console input/output is redirected. Run 'make oldconfig' to update configuration.
scripts/kconfig/Makefile:40: recipe for target 'silentoldconfig' failed
Makefile:507: recipe for target 'silentoldconfig' failed
Redirection is useful, for example, for testing where we want to give
particular key inputs from a test file, then check the result.
Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>
---
scripts/kconfig/conf.c | 14 --------------
1 file changed, 14 deletions(-)
diff --git a/scripts/kconfig/conf.c b/scripts/kconfig/conf.c
index 307bc3f..358e2e4 100644
--- a/scripts/kconfig/conf.c
+++ b/scripts/kconfig/conf.c
@@ -39,7 +39,6 @@ static enum input_mode input_mode = oldaskconfig;
static int indent = 1;
static int tty_stdio;
-static int valid_stdin = 1;
static int sync_kconfig;
static int conf_cnt;
static char line[PATH_MAX];
@@ -72,16 +71,6 @@ static void strip(char *str)
*p-- = 0;
}
-static void check_stdin(void)
-{
- if (!valid_stdin) {
- printf(_("aborted!\n\n"));
- printf(_("Console input/output is redirected. "));
- printf(_("Run 'make oldconfig' to update configuration.\n\n"));
- exit(1);
- }
-}
-
/* Helper function to facilitate fgets() by Jean Sacren. */
static void xfgets(char *str, int size, FILE *in)
{
@@ -113,7 +102,6 @@ static int conf_askvalue(struct symbol *sym, const char *def)
printf("%s\n", def);
return 0;
}
- check_stdin();
/* fall through */
case oldaskconfig:
fflush(stdout);
@@ -315,7 +303,6 @@ static int conf_choice(struct menu *menu)
printf("%d\n", cnt);
break;
}
- check_stdin();
/* fall through */
case oldaskconfig:
fflush(stdout);
@@ -650,7 +637,6 @@ int main(int ac, char **av)
return 1;
}
}
- valid_stdin = tty_stdio;
}
switch (input_mode) {
--
2.7.4
--
To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
