startup.S 1.1 KB

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  1. /* startup.S - bootstrap GRUB itself */
  2. /*
  3. * GRUB -- GRand Unified Bootloader
  4. * Copyright (C) 2006,2007,2010 Free Software Foundation, Inc.
  5. *
  6. * GRUB is free software: you can redistribute it and/or modify
  7. * it under the terms of the GNU General Public License as published by
  8. * the Free Software Foundation, either version 3 of the License, or
  9. * (at your option) any later version.
  10. *
  11. * GRUB is distributed in the hope that it will be useful,
  12. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14. * GNU General Public License for more details.
  15. *
  16. * You should have received a copy of the GNU General Public License
  17. * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
  18. */
  19. #include <config.h>
  20. #include <grub/symbol.h>
  21. .file "startup.S"
  22. .text
  23. .globl start, _start
  24. start:
  25. _start:
  26. /*
  27. * EFI_SYSTEM_TABLE * and EFI_HANDLE are passed on the stack.
  28. */
  29. movl 4(%esp), %eax
  30. movl %eax, EXT_C(grub_efi_image_handle)
  31. movl 8(%esp), %eax
  32. movl %eax, EXT_C(grub_efi_system_table)
  33. call EXT_C(grub_main)
  34. ret