armsrc/start.c

   1 //-----------------------------------------------------------------------------
   2 // Jonathan Westhues, Mar 2006
   3 //
   4 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
   5 // at your option, any later version. See the LICENSE.txt file for the text of
   6 // the license.
   7 //-----------------------------------------------------------------------------
   8 // Just vector to AppMain(). This is in its own file so that I can place it
   9 // with the linker script.
  10 //-----------------------------------------------------------------------------
  11
  12 #include "proxmark3.h"
  13 #include "apps.h"
  14
  15 extern char __data_start__, __data_src_start__,  __data_end__, __bss_start__, __bss_end__;
  16 void __attribute__((section(".startos"))) Vector(void)
  17 {
  18         /* Stack should have been set up by the bootloader */
  19         char *src, *dst, *end;
  20
  21         /* Set up (that is: clear) BSS. */
  22         dst = &__bss_start__;
  23         end = &__bss_end__;
  24         while(dst < end) *dst++ = 0;
  25
  26         /* Set up data segment: Copy from flash to ram */
  27         src = &__data_src_start__;
  28         dst = &__data_start__;
  29         end = &__data_end__;
  30         while(dst < end) *dst++ = *src++;
  31
  32         AppMain();
  33 }