src/lib/master_header_pointer.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <commonlib/bsd/cbfs_serialized.h>
   4 #include <endian.h>
   5 #include <fmap_config.h>
   6 #include <stdint.h>
   7
   8 #if CONFIG(BOOTBLOCK_IN_CBFS)
   9 __attribute__((used, __section__(".header_pointer")))
  10 #endif
  11
  12 #if FMAP_SECTION_COREBOOT_START < (0xffffffff - CONFIG_ROM_SIZE + 1)
  13 #define COREBOOT_CBFS_START (0xffffffff - CONFIG_ROM_SIZE + 1 + FMAP_SECTION_COREBOOT_START)
  14 #else
  15 #define COREBOOT_CBFS_START FMAP_SECTION_COREBOOT_START
  16 #endif
  17
  18 uint32_t header_pointer =
  19         cpu_to_le32(COREBOOT_CBFS_START + ALIGN_UP(sizeof(struct cbfs_file)
  20                                                    + sizeof("cbfs_master_header"),
  21                                                    CBFS_ATTRIBUTE_ALIGN));