*: add optimization barrier to all "G trick" locations

networking/httpd.c

@@ -322,7 +322,7 @@ struct globals {
 #define http_error_page   (G.http_error_page  )
 #define proxy             (G.proxy            )
 #define INIT_G() do { \
-	PTR_TO_GLOBALS = xzalloc(sizeof(G)); \
+	SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); \
 	USE_FEATURE_HTTPD_BASIC_AUTH(g_realm = "Web Server Authentication";) \
 	bind_addr_or_port = "80"; \
 	file_size = -1; \

networking/ifenslave.c

@@ -129,7 +129,7 @@ struct globals {
 #define master     (G.master    )
 #define slave      (G.slave     )
 #define INIT_G() do { \
-        PTR_TO_GLOBALS = xzalloc(sizeof(G)); \
+        SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); \
 } while (0)
 
 

networking/nc_bloaty.c

@@ -97,7 +97,6 @@ struct globals {
 };
 
 #define G (*ptr_to_globals)
-
 #define wrote_out  (G.wrote_out )
 #define wrote_net  (G.wrote_net )
 #define ouraddr    (G.ouraddr   )
@@ -115,6 +114,10 @@ struct globals {
 #else
 #define o_interval 0
 #endif
+#define INIT_G() do { \
+	SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); \
+} while (0)
+
 
 /* Must match getopt32 call! */
 enum {
@@ -678,9 +681,7 @@ int nc_main(int argc, char **argv)
 	int x;
 	unsigned o_lport = 0;
 
-	/* I was in this barbershop quartet in Skokie IL ... */
-	/* round up the usual suspects, i.e. malloc up all the stuff we need */
-	PTR_TO_GLOBALS = xzalloc(sizeof(G));
+	INIT_G();
 
 	/* catch a signal or two for cleanup */
 	bb_signals(0

networking/sendmail.c

@@ -77,7 +77,7 @@ struct globals {
 #define xargs           (G.xargs     )
 #define fargs           (G.fargs     )
 #define INIT_G() do { \
-	PTR_TO_GLOBALS = xzalloc(sizeof(G)); \
+	SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); \
 	xargs[0] = "openssl"; \
 	xargs[1] = "s_client"; \
 	xargs[2] = "-quiet"; \

networking/traceroute.c

@@ -378,7 +378,7 @@ struct globals {
 #define wherefrom (G.wherefrom)
 #define gwlist    (G.gwlist   )
 #define INIT_G() do { \
-	PTR_TO_GLOBALS = xzalloc(sizeof(G)); \
+	SET_PTR_TO_GLOBALS(xzalloc(sizeof(G))); \
 	maxpacket = 32 * 1024; \
 	port = 32768 + 666; \
 	waittime = 5; \