cmdline.c 810 B

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  1. // SPDX-License-Identifier: GPL-2.0
  2. /*
  3. * cmdline.c: read the command line passed to us by the PROM.
  4. *
  5. * Copyright (C) 1998 Harald Koerfgen
  6. * Copyright (C) 2002, 2004 Maciej W. Rozycki
  7. */
  8. #include <linux/init.h>
  9. #include <linux/kernel.h>
  10. #include <linux/string.h>
  11. #include <linux/types.h>
  12. #include <asm/bootinfo.h>
  13. #include <asm/dec/prom.h>
  14. #undef PROM_DEBUG
  15. void __init prom_init_cmdline(s32 argc, s32 *argv, u32 magic)
  16. {
  17. char *arg;
  18. int start_arg, i;
  19. /*
  20. * collect args and prepare cmd_line
  21. */
  22. if (!prom_is_rex(magic))
  23. start_arg = 1;
  24. else
  25. start_arg = 2;
  26. for (i = start_arg; i < argc; i++) {
  27. arg = (void *)(long)(argv[i]);
  28. strcat(arcs_cmdline, arg);
  29. if (i < (argc - 1))
  30. strcat(arcs_cmdline, " ");
  31. }
  32. #ifdef PROM_DEBUG
  33. printk("arcs_cmdline: %s\n", &(arcs_cmdline[0]));
  34. #endif
  35. }