X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/e73e717239300d6b47d5f5d81256d8feb493299f..5d32e2bf6029c9efe5d191c13b82d59f6515e789:/armsrc/start.c?ds=sidebyside

diff --git a/armsrc/start.c b/armsrc/start.c
index de2dd2f6..0466a92f 100644
--- a/armsrc/start.c
+++ b/armsrc/start.c
@@ -6,7 +6,22 @@
 #include <proxmark3.h>
 #include "apps.h"
 
+extern char __data_start__, __data_src_start__,  __data_end__, __bss_start__, __bss_end__;
 void __attribute__((section(".startos"))) Vector(void)
 {
+	/* Stack should have been set up by the bootloader */
+	char *src, *dst, *end;
+	
+	/* Set up (that is: clear) BSS. */
+	dst = &__bss_start__;
+	end = &__bss_end__;
+	while(dst < end) *dst++ = 0;
+	
+	/* Set up data segment: Copy from flash to ram */
+	src = &__data_src_start__;
+	dst = &__data_start__;
+	end = &__data_end__;
+	while(dst < end) *dst++ = *src++;
+	
 	AppMain();
 }