include/initcall.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * Copyright (c) 2011 The Chromium OS Authors.
   4  */
   5
   6 #ifndef __INITCALL_H
   7 #define __INITCALL_H
   8
   9 typedef int (*init_fnc_t)(void);
  10
  11 #ifdef CONFIG_EFI_APP
  12 #include <efi.h>
  13 #endif
  14
  15 /*
  16  * To enable debugging. add #define DEBUG at the top of the including file.
  17  *
  18  * To find a symbol, use grep on u-boot.map
  19  */
  20 static inline int initcall_run_list(const init_fnc_t init_sequence[])
  21 {
  22         const init_fnc_t *init_fnc_ptr;
  23
  24         for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
  25                 unsigned long reloc_ofs = 0;
  26                 int ret;
  27
  28                 /*
  29                  * Sandbox is relocated by the OS, so symbols always appear at
  30                  * the relocated address.
  31                  */
  32                 if (IS_ENABLED(CONFIG_SANDBOX) || (gd->flags & GD_FLG_RELOC))
  33                         reloc_ofs = gd->reloc_off;
  34 #ifdef CONFIG_EFI_APP
  35                 reloc_ofs = (unsigned long)image_base;
  36 #endif
  37                 if (reloc_ofs)
  38                         debug("initcall: %p (relocated to %p)\n",
  39                                         (char *)*init_fnc_ptr - reloc_ofs,
  40                                         (char *)*init_fnc_ptr);
  41                 else
  42                         debug("initcall: %p\n", (char *)*init_fnc_ptr - reloc_ofs);
  43
  44                 ret = (*init_fnc_ptr)();
  45                 if (ret) {
  46                         printf("initcall sequence %p failed at call %p (err=%d)\n",
  47                                init_sequence,
  48                                (char *)*init_fnc_ptr - reloc_ofs, ret);
  49                         return -1;
  50                 }
  51         }
  52         return 0;
  53 }
  54
  55 #endif