setup: move stack protector variable to setup.h

bootloader/bootloader.c

@@ -120,8 +120,6 @@ void bootloader_loop(void)
 	usbLoop(firmware_present());
 }
 
-extern uint32_t __stack_chk_guard;
-
 int main(void)
 {
 #ifndef APPVER

demo/demo.c

@@ -238,14 +238,6 @@ void usbInit(void)
 	usbd_register_set_config_callback(usbd_dev, hid_set_config);
 }
 
-uint32_t __stack_chk_guard;
-
-void __attribute__((noreturn)) __stack_chk_fail(void)
-{
-	layoutDialog(&bmp_icon_error, NULL, NULL, NULL, "Stack smashing", "detected.", NULL, "Please unplug", "the device.", NULL);
-	for (;;) {} // loop forever
-}
-
 int main(void)
 {
 #ifndef APPVER

firmware/trezor.c

@@ -31,8 +31,6 @@
 #include "buttons.h"
 #include "fastflash.h"
 
-extern uint32_t __stack_chk_guard;
-
 void check_lock_screen(void)
 {
 	buttonUpdate();

setup.h

@@ -20,6 +20,10 @@
 #ifndef __SETUP_H__
 #define __SETUP_H__
 
+#include <stdint.h>
+
+extern uint32_t __stack_chk_guard;
+
 void setup(void);
 void setupApp(void);