sv,svc: fix NOEXEC fallout

function                                             old     new   delta
svc_main                                             145     162     +17
sv                                                  1280    1297     +17
status                                               139     133      -6
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/1 up/down: 34/-6)              Total: 28 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

coreutils/cksum.c

@@ -13,6 +13,7 @@
 //config:	cksum is used to calculate the CRC32 checksum of a file.
 
 //applet:IF_CKSUM(APPLET_NOEXEC(cksum, cksum, BB_DIR_USR_BIN, BB_SUID_DROP, cksum))
+/* bb_common_bufsiz1 usage here is safe wrt NOEXEC: not expecting it to be zeroed. */
 
 //kbuild:lib-$(CONFIG_CKSUM) += cksum.o
 

coreutils/date.c

@@ -59,6 +59,7 @@
 //config:	MMDDhhmm[[YY]YY][.ss] format.
 
 //applet:IF_DATE(APPLET_NOEXEC(date, date, BB_DIR_BIN, BB_SUID_DROP, date))
+/* bb_common_bufsiz1 usage here is safe wrt NOEXEC: not expecting it to be zeroed. */
 
 //kbuild:lib-$(CONFIG_DATE) += date.o
 

coreutils/stty.c

@@ -785,6 +785,7 @@ struct globals {
 } FIX_ALIASING;
 #define G (*(struct globals*)bb_common_bufsiz1)
 #define INIT_G() do { \
+	setup_common_bufsiz(); \
 	G.device_name = bb_msg_standard_input; \
 	G.max_col = 80; \
 	G.current_col = 0; /* we are noexec, must clear */ \