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coreboot reloc

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This commit is contained in:
Vladimir Serbinenko committed 2016-02-21 18:42:35 +01:00
1 parent 78e9b82d2c
commit 8af26e386c
1 file changed
+61
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util/grub-mkimagexx.c
+61
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@@ -76,6 +76,8 @@ struct grub_ieee1275_note
};
#define GRUB_XEN_NOTE_NAME "Xen"
#define GRUB_COREBOOT_NOTE_NAME "coreboot"
#define COREBOOT_NOTE_SIZE (sizeof (Elf_Nhdr) + ALIGN_UP (sizeof (GRUB_COREBOOT_NOTE_NAME), 4) + 12)
struct fixup_block_list
{
@@ -216,6 +218,13 @@ SUFFIX (grub_mkimage_generate_elf) (const struct grub_install_image_target_desc
string_size += sizeof (".xen");
footer_size += XEN_NOTE_SIZE;
}
if (image_target->id == IMAGE_COREBOOT && image_target->elf_target == EM_ARM)
{
phnum++;
shnum++;
string_size += sizeof (".coreboot_flags");
footer_size += COREBOOT_NOTE_SIZE;
}
header_size = ALIGN_UP (sizeof (*ehdr) + phnum * sizeof (*phdr)
+ shnum * sizeof (*shdr) + string_size, align);
@@ -303,6 +312,39 @@ SUFFIX (grub_mkimage_generate_elf) (const struct grub_install_image_target_desc
phdr->p_align = grub_host_to_target32 (image_target->link_align);
}
if (image_target->id == IMAGE_COREBOOT && image_target->elf_target == EM_ARM)
{
char *note_start = (elf_img + program_size + header_size);
Elf_Nhdr *note_ptr;
char *ptr = (char *) note_start;
grub_util_info ("adding coreboot NOTE segment");
note_ptr = (Elf_Nhdr *) ptr;
note_ptr->n_namesz = grub_host_to_target32 (sizeof (GRUB_COREBOOT_NOTE_NAME));
note_ptr->n_descsz = grub_host_to_target32 (8);
note_ptr->n_type = grub_host_to_target32 (0);
ptr += sizeof (Elf_Nhdr);
memcpy (ptr, GRUB_COREBOOT_NOTE_NAME, sizeof (GRUB_COREBOOT_NOTE_NAME));
ptr += ALIGN_UP (sizeof (GRUB_COREBOOT_NOTE_NAME), 4);
((grub_uint32_t *) ptr)[0] = grub_host_to_target32 (is_relocatable (image_target));
((grub_uint32_t *) ptr)[1] = 0;
((grub_uint32_t *) ptr)[2] = grub_host_to_target32 (align);
ptr += 12;
assert (COREBOOT_NOTE_SIZE == (ptr - note_start));
phdr++;
phdr->p_type = grub_host_to_target32 (PT_NOTE);
phdr->p_flags = grub_host_to_target32 (PF_R);
phdr->p_align = grub_host_to_target32 (image_target->voidp_sizeof);
phdr->p_vaddr = 0;
phdr->p_paddr = 0;
phdr->p_filesz = grub_host_to_target32 (COREBOOT_NOTE_SIZE);
phdr->p_memsz = 0;
phdr->p_offset = grub_host_to_target32 (header_size + program_size);
}
if (image_target->id == IMAGE_XEN)
{
char *note_start = (elf_img + program_size + header_size);
@@ -483,6 +525,25 @@ SUFFIX (grub_mkimage_generate_elf) (const struct grub_install_image_target_desc
shdr->sh_entsize = grub_host_to_target32 (0);
shdr++;
}
if (image_target->id == IMAGE_COREBOOT && image_target->elf_target == EM_ARM)
{
memcpy (ptr, ".coreboot_flags", sizeof (".coreboot_flags"));
shdr->sh_name = grub_host_to_target32 (ptr - str_start);
ptr += sizeof (".coreboot_flags");
shdr->sh_type = grub_host_to_target32 (SHT_PROGBITS);
shdr->sh_addr = grub_host_to_target_addr (target_addr + kernel_size);
shdr->sh_offset = grub_host_to_target_addr (program_size + header_size
+ sizeof (Elf_Nhdr)
+ ALIGN_UP (sizeof (GRUB_COREBOOT_NOTE_NAME), 4));
shdr->sh_size = grub_host_to_target32 (COREBOOT_NOTE_SIZE
- sizeof (Elf_Nhdr)
- ALIGN_UP (sizeof (GRUB_COREBOOT_NOTE_NAME), 4));
shdr->sh_link = grub_host_to_target32 (0);
shdr->sh_info = grub_host_to_target32 (0);
shdr->sh_addralign = grub_host_to_target32 (image_target->voidp_sizeof);
shdr->sh_entsize = grub_host_to_target32 (0);
shdr++;
}
}
free (*core_img);