Add new ports: i386-xen and x86_64-xen. This allows running GRUB in
XEN PV environment and load kernels.
This commit is contained in:
Vladimir Serbinenko
parent
1a46a3a4b3
commit
9612ebc00e
59 changed files with 4167 additions and 259 deletions
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@ -25,6 +25,7 @@
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# define ELFCLASSXX ELFCLASS32
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# define Elf_Ehdr Elf32_Ehdr
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# define Elf_Phdr Elf32_Phdr
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# define Elf_Nhdr Elf32_Nhdr
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# define Elf_Addr Elf32_Addr
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# define Elf_Sym Elf32_Sym
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# define Elf_Off Elf32_Off
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@ -37,11 +38,13 @@
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# define ELF_R_SYM(val) ELF32_R_SYM(val)
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# define ELF_R_TYPE(val) ELF32_R_TYPE(val)
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# define ELF_ST_TYPE(val) ELF32_ST_TYPE(val)
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#define XEN_NOTE_SIZE 132
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#elif defined(MKIMAGE_ELF64)
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# define SUFFIX(x) x ## 64
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# define ELFCLASSXX ELFCLASS64
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# define Elf_Ehdr Elf64_Ehdr
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# define Elf_Phdr Elf64_Phdr
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# define Elf_Nhdr Elf64_Nhdr
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# define Elf_Addr Elf64_Addr
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# define Elf_Sym Elf64_Sym
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# define Elf_Off Elf64_Off
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@ -54,12 +57,315 @@
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# define ELF_R_SYM(val) ELF64_R_SYM(val)
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# define ELF_R_TYPE(val) ELF64_R_TYPE(val)
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# define ELF_ST_TYPE(val) ELF64_ST_TYPE(val)
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#define XEN_NOTE_SIZE 120
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#else
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#error "I'm confused"
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#endif
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static Elf_Addr SUFFIX (entry_point);
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static void
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SUFFIX (generate_elf) (const struct grub_install_image_target_desc *image_target,
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int note, char **core_img, size_t *core_size,
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Elf_Addr target_addr, grub_size_t align,
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size_t kernel_size, size_t bss_size)
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{
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char *elf_img;
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size_t program_size;
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Elf_Ehdr *ehdr;
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Elf_Phdr *phdr;
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Elf_Shdr *shdr;
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int header_size, footer_size = 0;
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int phnum = 1;
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int shnum = 4;
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int string_size = sizeof (".text") + sizeof ("mods") + 1;
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if (image_target->id != IMAGE_LOONGSON_ELF)
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phnum += 2;
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if (note)
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{
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phnum++;
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footer_size += sizeof (struct grub_ieee1275_note);
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}
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if (image_target->id == IMAGE_XEN)
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{
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phnum++;
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shnum++;
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string_size += sizeof (".xen");
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footer_size += XEN_NOTE_SIZE;
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}
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header_size = ALIGN_UP (sizeof (*ehdr) + phnum * sizeof (*phdr)
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+ shnum * sizeof (*shdr) + string_size, align);
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program_size = ALIGN_ADDR (*core_size);
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elf_img = xmalloc (program_size + header_size + footer_size);
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memset (elf_img, 0, program_size + header_size);
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memcpy (elf_img + header_size, *core_img, *core_size);
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ehdr = (void *) elf_img;
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phdr = (void *) (elf_img + sizeof (*ehdr));
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shdr = (void *) (elf_img + sizeof (*ehdr) + phnum * sizeof (*phdr));
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memcpy (ehdr->e_ident, ELFMAG, SELFMAG);
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ehdr->e_ident[EI_CLASS] = ELFCLASSXX;
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if (!image_target->bigendian)
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ehdr->e_ident[EI_DATA] = ELFDATA2LSB;
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else
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ehdr->e_ident[EI_DATA] = ELFDATA2MSB;
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ehdr->e_ident[EI_VERSION] = EV_CURRENT;
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ehdr->e_ident[EI_OSABI] = ELFOSABI_NONE;
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ehdr->e_type = grub_host_to_target16 (ET_EXEC);
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ehdr->e_machine = grub_host_to_target16 (image_target->elf_target);
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ehdr->e_version = grub_host_to_target32 (EV_CURRENT);
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ehdr->e_phoff = grub_host_to_target32 ((char *) phdr - (char *) ehdr);
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ehdr->e_phentsize = grub_host_to_target16 (sizeof (*phdr));
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ehdr->e_phnum = grub_host_to_target16 (phnum);
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ehdr->e_shoff = grub_host_to_target32 ((grub_uint8_t *) shdr
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- (grub_uint8_t *) ehdr);
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if (image_target->id == IMAGE_LOONGSON_ELF)
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ehdr->e_shentsize = grub_host_to_target16 (0);
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else
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ehdr->e_shentsize = grub_host_to_target16 (sizeof (Elf_Shdr));
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ehdr->e_shnum = grub_host_to_target16 (shnum);
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ehdr->e_shstrndx = grub_host_to_target16 (1);
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ehdr->e_ehsize = grub_host_to_target16 (sizeof (*ehdr));
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phdr->p_type = grub_host_to_target32 (PT_LOAD);
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phdr->p_offset = grub_host_to_target32 (header_size);
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phdr->p_flags = grub_host_to_target32 (PF_R | PF_W | PF_X);
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ehdr->e_entry = grub_host_to_target32 (target_addr);
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phdr->p_vaddr = grub_host_to_target32 (target_addr);
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phdr->p_paddr = grub_host_to_target32 (target_addr);
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phdr->p_align = grub_host_to_target32 (align > image_target->link_align ? align : image_target->link_align);
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if (image_target->id == IMAGE_LOONGSON_ELF)
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ehdr->e_flags = grub_host_to_target32 (0x1000 | EF_MIPS_NOREORDER
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| EF_MIPS_PIC | EF_MIPS_CPIC);
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else
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ehdr->e_flags = 0;
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if (image_target->id == IMAGE_LOONGSON_ELF)
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{
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phdr->p_filesz = grub_host_to_target32 (*core_size);
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phdr->p_memsz = grub_host_to_target32 (*core_size);
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}
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else
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{
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grub_uint32_t target_addr_mods;
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phdr->p_filesz = grub_host_to_target32 (kernel_size);
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phdr->p_memsz = grub_host_to_target32 (kernel_size + bss_size);
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phdr++;
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phdr->p_type = grub_host_to_target32 (PT_GNU_STACK);
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phdr->p_offset = grub_host_to_target32 (header_size + kernel_size);
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phdr->p_paddr = phdr->p_vaddr = phdr->p_filesz = phdr->p_memsz = 0;
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phdr->p_flags = grub_host_to_target32 (PF_R | PF_W | PF_X);
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phdr->p_align = grub_host_to_target32 (image_target->link_align);
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phdr++;
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phdr->p_type = grub_host_to_target32 (PT_LOAD);
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phdr->p_offset = grub_host_to_target32 (header_size + kernel_size);
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phdr->p_flags = grub_host_to_target32 (PF_R | PF_W | PF_X);
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phdr->p_filesz = phdr->p_memsz
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= grub_host_to_target32 (*core_size - kernel_size);
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target_addr_mods = ALIGN_UP (target_addr + kernel_size + bss_size
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+ image_target->mod_gap,
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image_target->mod_align);
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phdr->p_vaddr = grub_host_to_target_addr (target_addr_mods);
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phdr->p_paddr = grub_host_to_target_addr (target_addr_mods);
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phdr->p_align = grub_host_to_target32 (image_target->link_align);
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}
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if (image_target->id == IMAGE_XEN)
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{
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char *note_start = (elf_img + program_size + header_size);
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Elf_Nhdr *note_ptr;
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char *ptr = (char *) note_start;
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grub_util_info ("adding XEN NOTE segment");
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/* Guest OS. */
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note_ptr = (Elf_Nhdr *) ptr;
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note_ptr->n_namesz = grub_host_to_target32 (sizeof (GRUB_XEN_NOTE_NAME));
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note_ptr->n_descsz = grub_host_to_target32 (sizeof (PACKAGE_NAME));
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note_ptr->n_type = grub_host_to_target32 (6);
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ptr += sizeof (Elf_Nhdr);
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memcpy (ptr, GRUB_XEN_NOTE_NAME, sizeof (GRUB_XEN_NOTE_NAME));
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ptr += ALIGN_UP (sizeof (GRUB_XEN_NOTE_NAME), 4);
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memcpy (ptr, PACKAGE_NAME, sizeof (PACKAGE_NAME));
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ptr += ALIGN_UP (sizeof (PACKAGE_NAME), 4);
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/* Loader. */
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note_ptr = (Elf_Nhdr *) ptr;
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note_ptr->n_namesz = grub_host_to_target32 (sizeof (GRUB_XEN_NOTE_NAME));
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note_ptr->n_descsz = grub_host_to_target32 (sizeof ("generic"));
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note_ptr->n_type = grub_host_to_target32 (8);
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ptr += sizeof (Elf_Nhdr);
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memcpy (ptr, GRUB_XEN_NOTE_NAME, sizeof (GRUB_XEN_NOTE_NAME));
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ptr += ALIGN_UP (sizeof (GRUB_XEN_NOTE_NAME), 4);
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memcpy (ptr, "generic", sizeof ("generic"));
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ptr += ALIGN_UP (sizeof ("generic"), 4);
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/* Version. */
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note_ptr = (Elf_Nhdr *) ptr;
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note_ptr->n_namesz = grub_host_to_target32 (sizeof (GRUB_XEN_NOTE_NAME));
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note_ptr->n_descsz = grub_host_to_target32 (sizeof ("xen-3.0"));
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note_ptr->n_type = grub_host_to_target32 (5);
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ptr += sizeof (Elf_Nhdr);
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memcpy (ptr, GRUB_XEN_NOTE_NAME, sizeof (GRUB_XEN_NOTE_NAME));
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ptr += ALIGN_UP (sizeof (GRUB_XEN_NOTE_NAME), 4);
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memcpy (ptr, "xen-3.0", sizeof ("xen-3.0"));
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ptr += ALIGN_UP (sizeof ("xen-3.0"), 4);
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/* Entry. */
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note_ptr = (Elf_Nhdr *) ptr;
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note_ptr->n_namesz = grub_host_to_target32 (sizeof (GRUB_XEN_NOTE_NAME));
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note_ptr->n_descsz = grub_host_to_target32 (image_target->voidp_sizeof);
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note_ptr->n_type = grub_host_to_target32 (1);
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ptr += sizeof (Elf_Nhdr);
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memcpy (ptr, GRUB_XEN_NOTE_NAME, sizeof (GRUB_XEN_NOTE_NAME));
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ptr += ALIGN_UP (sizeof (GRUB_XEN_NOTE_NAME), 4);
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memset (ptr, 0, image_target->voidp_sizeof);
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ptr += image_target->voidp_sizeof;
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/* Virt base. */
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note_ptr = (Elf_Nhdr *) ptr;
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note_ptr->n_namesz = grub_host_to_target32 (sizeof (GRUB_XEN_NOTE_NAME));
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note_ptr->n_descsz = grub_host_to_target32 (image_target->voidp_sizeof);
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note_ptr->n_type = grub_host_to_target32 (3);
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ptr += sizeof (Elf_Nhdr);
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memcpy (ptr, GRUB_XEN_NOTE_NAME, sizeof (GRUB_XEN_NOTE_NAME));
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ptr += ALIGN_UP (sizeof (GRUB_XEN_NOTE_NAME), 4);
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memset (ptr, 0, image_target->voidp_sizeof);
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ptr += image_target->voidp_sizeof;
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/* PAE. */
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if (image_target->elf_target == EM_386)
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{
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note_ptr = (Elf_Nhdr *) ptr;
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note_ptr->n_namesz = grub_host_to_target32 (sizeof (GRUB_XEN_NOTE_NAME));
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note_ptr->n_descsz = grub_host_to_target32 (sizeof ("yes,bimodal"));
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note_ptr->n_type = grub_host_to_target32 (9);
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ptr += sizeof (Elf_Nhdr);
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memcpy (ptr, GRUB_XEN_NOTE_NAME, sizeof (GRUB_XEN_NOTE_NAME));
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ptr += ALIGN_UP (sizeof (GRUB_XEN_NOTE_NAME), 4);
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memcpy (ptr, "yes", sizeof ("yes"));
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ptr += ALIGN_UP (sizeof ("yes"), 4);
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}
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assert (XEN_NOTE_SIZE == (ptr - note_start));
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phdr++;
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phdr->p_type = grub_host_to_target32 (PT_NOTE);
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phdr->p_flags = grub_host_to_target32 (PF_R);
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phdr->p_align = grub_host_to_target32 (image_target->voidp_sizeof);
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phdr->p_vaddr = 0;
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phdr->p_paddr = 0;
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phdr->p_filesz = grub_host_to_target32 (XEN_NOTE_SIZE);
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phdr->p_memsz = 0;
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phdr->p_offset = grub_host_to_target32 (header_size + program_size);
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}
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if (note)
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{
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int note_size = sizeof (struct grub_ieee1275_note);
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struct grub_ieee1275_note *note_ptr = (struct grub_ieee1275_note *)
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(elf_img + program_size + header_size);
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grub_util_info ("adding CHRP NOTE segment");
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note_ptr->header.n_namesz = grub_host_to_target32 (sizeof (GRUB_IEEE1275_NOTE_NAME));
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note_ptr->header.n_descsz = grub_host_to_target32 (note_size);
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note_ptr->header.n_type = grub_host_to_target32 (GRUB_IEEE1275_NOTE_TYPE);
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strcpy (note_ptr->name, GRUB_IEEE1275_NOTE_NAME);
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note_ptr->descriptor.real_mode = grub_host_to_target32 (0xffffffff);
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note_ptr->descriptor.real_base = grub_host_to_target32 (0x00c00000);
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note_ptr->descriptor.real_size = grub_host_to_target32 (0xffffffff);
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note_ptr->descriptor.virt_base = grub_host_to_target32 (0xffffffff);
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note_ptr->descriptor.virt_size = grub_host_to_target32 (0xffffffff);
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note_ptr->descriptor.load_base = grub_host_to_target32 (0x00004000);
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phdr++;
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phdr->p_type = grub_host_to_target32 (PT_NOTE);
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phdr->p_flags = grub_host_to_target32 (PF_R);
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phdr->p_align = grub_host_to_target32 (image_target->voidp_sizeof);
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phdr->p_vaddr = 0;
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phdr->p_paddr = 0;
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phdr->p_filesz = grub_host_to_target32 (note_size);
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phdr->p_memsz = 0;
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phdr->p_offset = grub_host_to_target32 (header_size + program_size);
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}
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{
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char *str_start = (elf_img + sizeof (*ehdr) + phnum * sizeof (*phdr)
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+ shnum * sizeof (*shdr));
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char *ptr = str_start + 1;
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shdr++;
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shdr->sh_name = grub_host_to_target32 (0);
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shdr->sh_type = grub_host_to_target32 (SHT_STRTAB);
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shdr->sh_addr = grub_host_to_target_addr (0);
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shdr->sh_offset = grub_host_to_target_addr (str_start - elf_img);
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shdr->sh_size = grub_host_to_target32 (string_size);
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shdr->sh_link = grub_host_to_target32 (0);
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shdr->sh_info = grub_host_to_target32 (0);
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shdr->sh_addralign = grub_host_to_target32 (align);
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shdr->sh_entsize = grub_host_to_target32 (0);
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shdr++;
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memcpy (ptr, ".text", sizeof (".text"));
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shdr->sh_name = grub_host_to_target32 (ptr - str_start);
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ptr += sizeof (".text");
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shdr->sh_type = grub_host_to_target32 (SHT_PROGBITS);
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shdr->sh_addr = grub_host_to_target_addr (target_addr);
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shdr->sh_offset = grub_host_to_target_addr (header_size);
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shdr->sh_size = grub_host_to_target32 (kernel_size);
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shdr->sh_link = grub_host_to_target32 (0);
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shdr->sh_info = grub_host_to_target32 (0);
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shdr->sh_addralign = grub_host_to_target32 (align);
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shdr->sh_entsize = grub_host_to_target32 (0);
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shdr++;
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memcpy (ptr, "mods", sizeof ("mods"));
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shdr->sh_name = grub_host_to_target32 (ptr - str_start);
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ptr += sizeof ("mods");
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shdr->sh_type = grub_host_to_target32 (SHT_PROGBITS);
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shdr->sh_addr = grub_host_to_target_addr (target_addr + kernel_size);
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shdr->sh_offset = grub_host_to_target_addr (header_size + kernel_size);
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shdr->sh_size = grub_host_to_target32 (*core_size - kernel_size);
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shdr->sh_link = grub_host_to_target32 (0);
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shdr->sh_info = grub_host_to_target32 (0);
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shdr->sh_addralign = grub_host_to_target32 (image_target->voidp_sizeof);
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shdr->sh_entsize = grub_host_to_target32 (0);
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shdr++;
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if (image_target->id == IMAGE_XEN)
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{
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memcpy (ptr, ".xen", sizeof (".xen"));
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shdr->sh_name = grub_host_to_target32 (ptr - str_start);
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ptr += sizeof (".xen");
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shdr->sh_type = grub_host_to_target32 (SHT_PROGBITS);
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shdr->sh_addr = grub_host_to_target_addr (target_addr + kernel_size);
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shdr->sh_offset = grub_host_to_target_addr (program_size + header_size);
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shdr->sh_size = grub_host_to_target32 (XEN_NOTE_SIZE);
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shdr->sh_link = grub_host_to_target32 (0);
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shdr->sh_info = grub_host_to_target32 (0);
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shdr->sh_addralign = grub_host_to_target32 (image_target->voidp_sizeof);
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shdr->sh_entsize = grub_host_to_target32 (0);
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shdr++;
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}
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}
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free (*core_img);
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*core_img = elf_img;
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*core_size = program_size + header_size + footer_size;
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}
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/* Relocate symbols; note that this function overwrites the symbol table.
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Return the address of a start symbol. */
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static Elf_Addr
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@ -1095,6 +1401,7 @@ SUFFIX (load_image) (const char *kernel_path, size_t *exec_size,
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#undef ELFCLASSXX
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#undef Elf_Ehdr
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#undef Elf_Phdr
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#undef Elf_Nhdr
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#undef Elf_Shdr
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#undef Elf_Addr
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#undef Elf_Sym
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@ -1107,3 +1414,4 @@ SUFFIX (load_image) (const char *kernel_path, size_t *exec_size,
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#undef Elf_Half
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#undef Elf_Section
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#undef ELF_ST_TYPE
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#undef XEN_NOTE_SIZE
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196
util/mkimage.c
196
util/mkimage.c
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@ -66,7 +66,7 @@ struct grub_install_image_target_desc
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IMAGE_I386_IEEE1275,
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IMAGE_LOONGSON_ELF, IMAGE_QEMU, IMAGE_PPC, IMAGE_YEELOONG_FLASH,
|
||||
IMAGE_FULOONG2F_FLASH, IMAGE_I386_PC_PXE, IMAGE_MIPS_ARC,
|
||||
IMAGE_QEMU_MIPS_FLASH, IMAGE_UBOOT
|
||||
IMAGE_QEMU_MIPS_FLASH, IMAGE_UBOOT, IMAGE_XEN
|
||||
} id;
|
||||
enum
|
||||
{
|
||||
|
|
@ -240,6 +240,44 @@ static const struct grub_install_image_target_desc image_targets[] =
|
|||
.pe_target = GRUB_PE32_MACHINE_X86_64,
|
||||
.elf_target = EM_X86_64,
|
||||
},
|
||||
{
|
||||
.dirname = "i386-xen",
|
||||
.names = { "i386-xen", NULL },
|
||||
.voidp_sizeof = 4,
|
||||
.bigendian = 0,
|
||||
.id = IMAGE_XEN,
|
||||
.flags = PLATFORM_FLAGS_NONE,
|
||||
.total_module_size = TARGET_NO_FIELD,
|
||||
.decompressor_compressed_size = TARGET_NO_FIELD,
|
||||
.decompressor_uncompressed_size = TARGET_NO_FIELD,
|
||||
.decompressor_uncompressed_addr = TARGET_NO_FIELD,
|
||||
.section_align = 1,
|
||||
.vaddr_offset = 0,
|
||||
.link_addr = 0,
|
||||
.elf_target = EM_386,
|
||||
.mod_gap = GRUB_KERNEL_I386_XEN_MOD_GAP,
|
||||
.mod_align = GRUB_KERNEL_I386_XEN_MOD_ALIGN,
|
||||
.link_align = 4
|
||||
},
|
||||
{
|
||||
.dirname = "x86_64-xen",
|
||||
.names = { "x86_64-xen", NULL },
|
||||
.voidp_sizeof = 8,
|
||||
.bigendian = 0,
|
||||
.id = IMAGE_XEN,
|
||||
.flags = PLATFORM_FLAGS_NONE,
|
||||
.total_module_size = TARGET_NO_FIELD,
|
||||
.decompressor_compressed_size = TARGET_NO_FIELD,
|
||||
.decompressor_uncompressed_size = TARGET_NO_FIELD,
|
||||
.decompressor_uncompressed_addr = TARGET_NO_FIELD,
|
||||
.section_align = 1,
|
||||
.vaddr_offset = 0,
|
||||
.link_addr = 0,
|
||||
.elf_target = EM_X86_64,
|
||||
.mod_gap = GRUB_KERNEL_X86_64_XEN_MOD_GAP,
|
||||
.mod_align = GRUB_KERNEL_X86_64_XEN_MOD_ALIGN,
|
||||
.link_align = 8
|
||||
},
|
||||
{
|
||||
.dirname = "mipsel-loongson",
|
||||
.names = { "mipsel-yeeloong-flash", NULL },
|
||||
|
|
@ -618,14 +656,6 @@ grub_target_to_host_real (const struct grub_install_image_target_desc *image_tar
|
|||
/* These structures are defined according to the CHRP binding to IEEE1275,
|
||||
"Client Program Format" section. */
|
||||
|
||||
struct grub_ieee1275_note_hdr
|
||||
{
|
||||
grub_uint32_t namesz;
|
||||
grub_uint32_t descsz;
|
||||
grub_uint32_t type;
|
||||
char name[sizeof (GRUB_IEEE1275_NOTE_NAME)];
|
||||
};
|
||||
|
||||
struct grub_ieee1275_note_desc
|
||||
{
|
||||
grub_uint32_t real_mode;
|
||||
|
|
@ -638,10 +668,13 @@ struct grub_ieee1275_note_desc
|
|||
|
||||
struct grub_ieee1275_note
|
||||
{
|
||||
struct grub_ieee1275_note_hdr header;
|
||||
Elf32_Nhdr header;
|
||||
char name[ALIGN_UP(sizeof (GRUB_IEEE1275_NOTE_NAME), 4)];
|
||||
struct grub_ieee1275_note_desc descriptor;
|
||||
};
|
||||
|
||||
#define GRUB_XEN_NOTE_NAME "Xen"
|
||||
|
||||
#define grub_target_to_host(val) grub_target_to_host_real(image_target, (val))
|
||||
|
||||
#include <grub/lib/LzmaEnc.h>
|
||||
|
|
@ -903,6 +936,8 @@ grub_install_generate_image (const char *dir, const char *prefix,
|
|||
kernel_img = load_image64 (kernel_path, &exec_size, &kernel_size, &bss_size,
|
||||
total_module_size, &start_address, &rel_section,
|
||||
&reloc_size, &align, image_target);
|
||||
if (image_target->id == IMAGE_XEN && align < 4096)
|
||||
align = 4096;
|
||||
|
||||
if ((image_target->flags & PLATFORM_FLAGS_DECOMPRESSORS)
|
||||
&& (image_target->total_module_size != TARGET_NO_FIELD))
|
||||
|
|
@ -1135,6 +1170,7 @@ grub_install_generate_image (const char *dir, const char *prefix,
|
|||
case IMAGE_EFI:
|
||||
case IMAGE_MIPS_ARC:
|
||||
case IMAGE_QEMU_MIPS_FLASH:
|
||||
case IMAGE_XEN:
|
||||
break;
|
||||
case IMAGE_SPARC64_AOUT:
|
||||
case IMAGE_SPARC64_RAW:
|
||||
|
|
@ -1700,65 +1736,11 @@ grub_install_generate_image (const char *dir, const char *prefix,
|
|||
break;
|
||||
case IMAGE_LOONGSON_ELF:
|
||||
case IMAGE_PPC:
|
||||
case IMAGE_XEN:
|
||||
case IMAGE_COREBOOT:
|
||||
case IMAGE_I386_IEEE1275:
|
||||
{
|
||||
char *elf_img;
|
||||
size_t program_size;
|
||||
Elf32_Ehdr *ehdr;
|
||||
Elf32_Phdr *phdr;
|
||||
grub_uint32_t target_addr;
|
||||
int header_size, footer_size = 0;
|
||||
int phnum = 1;
|
||||
|
||||
if (image_target->id != IMAGE_LOONGSON_ELF)
|
||||
phnum += 2;
|
||||
|
||||
if (note)
|
||||
{
|
||||
phnum++;
|
||||
footer_size += sizeof (struct grub_ieee1275_note);
|
||||
}
|
||||
header_size = ALIGN_ADDR (sizeof (*ehdr) + phnum * sizeof (*phdr));
|
||||
|
||||
program_size = ALIGN_ADDR (core_size);
|
||||
|
||||
elf_img = xmalloc (program_size + header_size + footer_size);
|
||||
memset (elf_img, 0, program_size + header_size);
|
||||
memcpy (elf_img + header_size, core_img, core_size);
|
||||
ehdr = (void *) elf_img;
|
||||
phdr = (void *) (elf_img + sizeof (*ehdr));
|
||||
memcpy (ehdr->e_ident, ELFMAG, SELFMAG);
|
||||
ehdr->e_ident[EI_CLASS] = ELFCLASS32;
|
||||
if (!image_target->bigendian)
|
||||
ehdr->e_ident[EI_DATA] = ELFDATA2LSB;
|
||||
else
|
||||
ehdr->e_ident[EI_DATA] = ELFDATA2MSB;
|
||||
ehdr->e_ident[EI_VERSION] = EV_CURRENT;
|
||||
ehdr->e_ident[EI_OSABI] = ELFOSABI_NONE;
|
||||
ehdr->e_type = grub_host_to_target16 (ET_EXEC);
|
||||
ehdr->e_machine = grub_host_to_target16 (image_target->elf_target);
|
||||
ehdr->e_version = grub_host_to_target32 (EV_CURRENT);
|
||||
|
||||
ehdr->e_phoff = grub_host_to_target32 ((char *) phdr - (char *) ehdr);
|
||||
ehdr->e_phentsize = grub_host_to_target16 (sizeof (*phdr));
|
||||
ehdr->e_phnum = grub_host_to_target16 (phnum);
|
||||
|
||||
/* No section headers. */
|
||||
ehdr->e_shoff = grub_host_to_target32 (0);
|
||||
if (image_target->id == IMAGE_LOONGSON_ELF)
|
||||
ehdr->e_shentsize = grub_host_to_target16 (0);
|
||||
else
|
||||
ehdr->e_shentsize = grub_host_to_target16 (sizeof (Elf32_Shdr));
|
||||
ehdr->e_shnum = grub_host_to_target16 (0);
|
||||
ehdr->e_shstrndx = grub_host_to_target16 (0);
|
||||
|
||||
ehdr->e_ehsize = grub_host_to_target16 (sizeof (*ehdr));
|
||||
|
||||
phdr->p_type = grub_host_to_target32 (PT_LOAD);
|
||||
phdr->p_offset = grub_host_to_target32 (header_size);
|
||||
phdr->p_flags = grub_host_to_target32 (PF_R | PF_W | PF_X);
|
||||
|
||||
grub_uint64_t target_addr;
|
||||
if (image_target->id == IMAGE_LOONGSON_ELF)
|
||||
{
|
||||
if (comp == GRUB_COMPRESSION_NONE)
|
||||
|
|
@ -1769,84 +1751,12 @@ grub_install_generate_image (const char *dir, const char *prefix,
|
|||
}
|
||||
else
|
||||
target_addr = image_target->link_addr;
|
||||
ehdr->e_entry = grub_host_to_target32 (target_addr);
|
||||
phdr->p_vaddr = grub_host_to_target32 (target_addr);
|
||||
phdr->p_paddr = grub_host_to_target32 (target_addr);
|
||||
phdr->p_align = grub_host_to_target32 (align > image_target->link_align ? align : image_target->link_align);
|
||||
if (image_target->id == IMAGE_LOONGSON_ELF)
|
||||
ehdr->e_flags = grub_host_to_target32 (0x1000 | EF_MIPS_NOREORDER
|
||||
| EF_MIPS_PIC | EF_MIPS_CPIC);
|
||||
if (image_target->voidp_sizeof == 4)
|
||||
generate_elf32 (image_target, note, &core_img, &core_size,
|
||||
target_addr, align, kernel_size, bss_size);
|
||||
else
|
||||
ehdr->e_flags = 0;
|
||||
if (image_target->id == IMAGE_LOONGSON_ELF)
|
||||
{
|
||||
phdr->p_filesz = grub_host_to_target32 (core_size);
|
||||
phdr->p_memsz = grub_host_to_target32 (core_size);
|
||||
}
|
||||
else
|
||||
{
|
||||
grub_uint32_t target_addr_mods;
|
||||
phdr->p_filesz = grub_host_to_target32 (kernel_size);
|
||||
phdr->p_memsz = grub_host_to_target32 (kernel_size + bss_size);
|
||||
|
||||
phdr++;
|
||||
phdr->p_type = grub_host_to_target32 (PT_GNU_STACK);
|
||||
phdr->p_offset = grub_host_to_target32 (header_size + kernel_size);
|
||||
phdr->p_paddr = phdr->p_vaddr = phdr->p_filesz = phdr->p_memsz = 0;
|
||||
phdr->p_flags = grub_host_to_target32 (PF_R | PF_W | PF_X);
|
||||
phdr->p_align = grub_host_to_target32 (image_target->link_align);
|
||||
|
||||
phdr++;
|
||||
phdr->p_type = grub_host_to_target32 (PT_LOAD);
|
||||
phdr->p_offset = grub_host_to_target32 (header_size + kernel_size);
|
||||
phdr->p_flags = grub_host_to_target32 (PF_R | PF_W | PF_X);
|
||||
phdr->p_filesz = phdr->p_memsz
|
||||
= grub_host_to_target32 (core_size - kernel_size);
|
||||
|
||||
if (image_target->id == IMAGE_COREBOOT)
|
||||
target_addr_mods = GRUB_KERNEL_I386_COREBOOT_MODULES_ADDR;
|
||||
else
|
||||
target_addr_mods = ALIGN_UP (target_addr + kernel_size + bss_size
|
||||
+ image_target->mod_gap,
|
||||
image_target->mod_align);
|
||||
phdr->p_vaddr = grub_host_to_target32 (target_addr_mods);
|
||||
phdr->p_paddr = grub_host_to_target32 (target_addr_mods);
|
||||
phdr->p_align = grub_host_to_target32 (image_target->link_align);
|
||||
}
|
||||
|
||||
if (note)
|
||||
{
|
||||
int note_size = sizeof (struct grub_ieee1275_note);
|
||||
struct grub_ieee1275_note *note_ptr = (struct grub_ieee1275_note *)
|
||||
(elf_img + program_size + header_size);
|
||||
|
||||
grub_util_info ("adding CHRP NOTE segment");
|
||||
|
||||
note_ptr->header.namesz = grub_host_to_target32 (sizeof (GRUB_IEEE1275_NOTE_NAME));
|
||||
note_ptr->header.descsz = grub_host_to_target32 (note_size);
|
||||
note_ptr->header.type = grub_host_to_target32 (GRUB_IEEE1275_NOTE_TYPE);
|
||||
strcpy (note_ptr->header.name, GRUB_IEEE1275_NOTE_NAME);
|
||||
note_ptr->descriptor.real_mode = grub_host_to_target32 (0xffffffff);
|
||||
note_ptr->descriptor.real_base = grub_host_to_target32 (0x00c00000);
|
||||
note_ptr->descriptor.real_size = grub_host_to_target32 (0xffffffff);
|
||||
note_ptr->descriptor.virt_base = grub_host_to_target32 (0xffffffff);
|
||||
note_ptr->descriptor.virt_size = grub_host_to_target32 (0xffffffff);
|
||||
note_ptr->descriptor.load_base = grub_host_to_target32 (0x00004000);
|
||||
|
||||
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 (note_size);
|
||||
phdr->p_memsz = 0;
|
||||
phdr->p_offset = grub_host_to_target32 (header_size + program_size);
|
||||
}
|
||||
|
||||
free (core_img);
|
||||
core_img = elf_img;
|
||||
core_size = program_size + header_size + footer_size;
|
||||
generate_elf64 (image_target, note, &core_img, &core_size,
|
||||
target_addr, align, kernel_size, bss_size);
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue