mkimage: refactor a bunch of section data into a struct.
This basically moves a bunch of the section information we pass around a lot into a struct, and passes a pointer to a single one of those instead. This shouldn't change the binary file output or the "grub-mkimage -v" output in any way. Signed-off-by: Peter Jones <pjones@redhat.com> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This commit is contained in:
Peter Jones
Daniel Kiper
parent
e30de94926
commit
7542af695f
1 changed files with 115 additions and 146 deletions
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@ -93,6 +93,17 @@ struct fixup_block_list
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#define ALIGN_ADDR(x) (ALIGN_UP((x), image_target->voidp_sizeof))
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struct section_metadata
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{
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Elf_Half num_sections;
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Elf_Shdr *sections;
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Elf_Addr *addrs;
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Elf_Addr *vaddrs;
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Elf_Half section_entsize;
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Elf_Shdr *symtab;
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const char *strtab;
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};
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static int
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is_relocatable (const struct grub_install_image_target_desc *image_target)
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{
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@ -508,9 +519,7 @@ SUFFIX (grub_mkimage_generate_elf) (const struct grub_install_image_target_desc
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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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SUFFIX (relocate_symbols) (Elf_Ehdr *e, Elf_Shdr *sections,
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Elf_Shdr *symtab_section, Elf_Addr *section_vaddresses,
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Elf_Half section_entsize, Elf_Half num_sections,
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SUFFIX (relocate_symbols) (Elf_Ehdr *e, struct section_metadata *smd,
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void *jumpers, Elf_Addr jumpers_addr,
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Elf_Addr bss_start, Elf_Addr end,
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const struct grub_install_image_target_desc *image_target)
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@ -520,19 +529,18 @@ SUFFIX (relocate_symbols) (Elf_Ehdr *e, Elf_Shdr *sections,
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Elf_Addr start_address = (Elf_Addr) -1;
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Elf_Sym *sym;
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Elf_Word i;
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Elf_Shdr *symtab_link_section;
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Elf_Shdr *symtab_section;
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const char *symtab;
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grub_uint64_t *jptr = jumpers;
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symtab_link_section
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= (Elf_Shdr *) ((char *) sections
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+ (grub_target_to_host32 (symtab_section->sh_link)
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* section_entsize));
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symtab = (char *) e + grub_target_to_host (symtab_link_section->sh_offset);
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symtab_section = (Elf_Shdr *) ((char *) smd->sections
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+ grub_target_to_host32 (smd->symtab->sh_link)
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* smd->section_entsize);
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symtab = (char *) e + grub_target_to_host (symtab_section->sh_offset);
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symtab_size = grub_target_to_host (symtab_section->sh_size);
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sym_size = grub_target_to_host (symtab_section->sh_entsize);
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symtab_offset = grub_target_to_host (symtab_section->sh_offset);
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symtab_size = grub_target_to_host (smd->symtab->sh_size);
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sym_size = grub_target_to_host (smd->symtab->sh_entsize);
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symtab_offset = grub_target_to_host (smd->symtab->sh_offset);
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num_syms = symtab_size / sym_size;
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for (i = 0, sym = (Elf_Sym *) ((char *) e + symtab_offset);
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@ -560,12 +568,12 @@ SUFFIX (relocate_symbols) (Elf_Ehdr *e, Elf_Shdr *sections,
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else
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continue;
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}
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else if (cur_index >= num_sections)
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else if (cur_index >= smd->num_sections)
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grub_util_error ("section %d does not exist", cur_index);
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else
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{
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sym->st_value = (grub_target_to_host (sym->st_value)
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+ section_vaddresses[cur_index]);
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+ smd->vaddrs[cur_index]);
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}
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if (image_target->elf_target == EM_IA_64 && ELF_ST_TYPE (sym->st_info)
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@ -580,7 +588,7 @@ SUFFIX (relocate_symbols) (Elf_Ehdr *e, Elf_Shdr *sections,
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grub_util_info ("locating %s at 0x%" GRUB_HOST_PRIxLONG_LONG
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" (0x%" GRUB_HOST_PRIxLONG_LONG ")", name,
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(unsigned long long) sym->st_value,
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(unsigned long long) section_vaddresses[cur_index]);
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(unsigned long long) smd->vaddrs[cur_index]);
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if (start_address == (Elf_Addr)-1)
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if (strcmp (name, "_start") == 0 || strcmp (name, "start") == 0)
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@ -722,12 +730,8 @@ arm_get_trampoline_size (Elf_Ehdr *e,
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addresses can be fully resolved. Absolute addresses must be relocated
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again by a PE32 relocator when loaded. */
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static void
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SUFFIX (relocate_addresses) (Elf_Ehdr *e, Elf_Shdr *sections,
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Elf_Addr *section_addresses,
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Elf_Half section_entsize, Elf_Half num_sections,
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const char *strtab,
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char *pe_target, Elf_Addr tramp_off,
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Elf_Addr got_off,
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SUFFIX (relocate_addrs) (Elf_Ehdr *e, struct section_metadata *smd,
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char *pe_target, Elf_Addr tramp_off, Elf_Addr got_off,
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const struct grub_install_image_target_desc *image_target)
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{
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Elf_Half i;
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@ -741,33 +745,29 @@ SUFFIX (relocate_addresses) (Elf_Ehdr *e, Elf_Shdr *sections,
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grub_uint32_t *tr = (void *) (pe_target + tramp_off);
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#endif
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for (i = 0, s = sections;
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i < num_sections;
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i++, s = (Elf_Shdr *) ((char *) s + section_entsize))
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for (i = 0, s = smd->sections;
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i < smd->num_sections;
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i++, s = (Elf_Shdr *) ((char *) s + smd->section_entsize))
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if ((s->sh_type == grub_host_to_target32 (SHT_REL)) ||
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(s->sh_type == grub_host_to_target32 (SHT_RELA)))
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{
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Elf_Rela *r;
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Elf_Word rtab_size, r_size, num_rs;
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Elf_Off rtab_offset;
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Elf_Shdr *symtab_section;
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Elf_Word target_section_index;
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Elf_Addr target_section_addr;
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Elf_Shdr *target_section;
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Elf_Word j;
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symtab_section = (Elf_Shdr *) ((char *) sections
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+ (grub_target_to_host32 (s->sh_link)
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* section_entsize));
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target_section_index = grub_target_to_host32 (s->sh_info);
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target_section_addr = section_addresses[target_section_index];
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target_section = (Elf_Shdr *) ((char *) sections
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target_section_addr = smd->addrs[target_section_index];
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target_section = (Elf_Shdr *) ((char *) smd->sections
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+ (target_section_index
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* section_entsize));
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* smd->section_entsize));
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grub_util_info ("dealing with the relocation section %s for %s",
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strtab + grub_target_to_host32 (s->sh_name),
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strtab + grub_target_to_host32 (target_section->sh_name));
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smd->strtab + grub_target_to_host32 (s->sh_name),
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smd->strtab + grub_target_to_host32 (target_section->sh_name));
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rtab_size = grub_target_to_host (s->sh_size);
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r_size = grub_target_to_host (s->sh_entsize);
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@ -788,7 +788,7 @@ SUFFIX (relocate_addresses) (Elf_Ehdr *e, Elf_Shdr *sections,
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target = SUFFIX (get_target_address) (e, target_section,
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offset, image_target);
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info = grub_target_to_host (r->r_info);
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sym_addr = SUFFIX (get_symbol_address) (e, symtab_section,
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sym_addr = SUFFIX (get_symbol_address) (e, smd->symtab,
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ELF_R_SYM (info), image_target);
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addend = (s->sh_type == grub_target_to_host32 (SHT_RELA)) ?
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@ -919,8 +919,8 @@ SUFFIX (relocate_addresses) (Elf_Ehdr *e, Elf_Shdr *sections,
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Elf_Sym *sym;
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sym = (Elf_Sym *) ((char *) e
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+ grub_target_to_host (symtab_section->sh_offset)
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+ ELF_R_SYM (info) * grub_target_to_host (symtab_section->sh_entsize));
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+ grub_target_to_host (smd->symtab->sh_offset)
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+ ELF_R_SYM (info) * grub_target_to_host (smd->symtab->sh_entsize));
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if (ELF_ST_TYPE (sym->st_info) == STT_FUNC)
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sym_addr = grub_target_to_host64 (*(grub_uint64_t *) (pe_target
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+ sym->st_value
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@ -1105,8 +1105,8 @@ SUFFIX (relocate_addresses) (Elf_Ehdr *e, Elf_Shdr *sections,
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- (char *) e),
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sym_addr);
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sym = (Elf_Sym *) ((char *) e
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+ grub_target_to_host (symtab_section->sh_offset)
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+ ELF_R_SYM (info) * grub_target_to_host (symtab_section->sh_entsize));
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+ grub_target_to_host (smd->symtab->sh_offset)
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+ ELF_R_SYM (info) * grub_target_to_host (smd->symtab->sh_entsize));
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if (ELF_ST_TYPE (sym->st_info) != STT_FUNC)
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sym_addr |= 1;
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if (!(sym_addr & 1))
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@ -1644,9 +1644,7 @@ create_u64_fixups (struct translate_context *ctx,
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/* Make a .reloc section. */
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static void
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make_reloc_section (Elf_Ehdr *e, struct grub_mkimage_layout *layout,
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Elf_Addr *section_vaddresses, Elf_Shdr *sections,
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Elf_Half section_entsize, Elf_Half num_sections,
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const char *strtab,
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struct section_metadata *smd,
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const struct grub_install_image_target_desc *image_target)
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{
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unsigned i;
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@ -1655,8 +1653,8 @@ make_reloc_section (Elf_Ehdr *e, struct grub_mkimage_layout *layout,
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translate_reloc_start (&ctx, image_target);
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for (i = 0, s = sections; i < num_sections;
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i++, s = (Elf_Shdr *) ((char *) s + section_entsize))
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for (i = 0, s = smd->sections; i < smd->num_sections;
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i++, s = (Elf_Shdr *) ((char *) s + smd->section_entsize))
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if ((grub_target_to_host32 (s->sh_type) == SHT_REL) ||
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(grub_target_to_host32 (s->sh_type) == SHT_RELA))
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{
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@ -1667,14 +1665,14 @@ make_reloc_section (Elf_Ehdr *e, struct grub_mkimage_layout *layout,
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Elf_Word j;
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grub_util_info ("translating the relocation section %s",
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strtab + grub_le_to_cpu32 (s->sh_name));
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smd->strtab + grub_le_to_cpu32 (s->sh_name));
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rtab_size = grub_target_to_host (s->sh_size);
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r_size = grub_target_to_host (s->sh_entsize);
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rtab_offset = grub_target_to_host (s->sh_offset);
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num_rs = rtab_size / r_size;
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section_address = section_vaddresses[grub_le_to_cpu32 (s->sh_info)];
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section_address = smd->vaddrs[grub_le_to_cpu32 (s->sh_info)];
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for (j = 0, r = (Elf_Rel *) ((char *) e + rtab_offset);
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j < num_rs;
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@ -1761,12 +1759,11 @@ SUFFIX (check_elf_header) (Elf_Ehdr *e, size_t size, const struct grub_install_i
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static Elf_Addr
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SUFFIX (put_section) (Elf_Shdr *s, int i,
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Elf_Addr current_address,
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Elf_Addr *section_addresses,
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const char *strtab,
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struct section_metadata *smd,
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const struct grub_install_image_target_desc *image_target)
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{
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Elf_Word align = grub_host_to_target_addr (s->sh_addralign);
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const char *name = strtab + grub_host_to_target32 (s->sh_name);
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const char *name = smd->strtab + grub_host_to_target32 (s->sh_name);
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if (align)
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current_address = ALIGN_UP (current_address + image_target->vaddr_offset,
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@ -1778,8 +1775,8 @@ SUFFIX (put_section) (Elf_Shdr *s, int i,
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name, (unsigned long long) current_address);
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if (!is_relocatable (image_target))
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current_address = grub_host_to_target_addr (s->sh_addr)
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- image_target->link_addr;
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section_addresses[i] = current_address;
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- image_target->link_addr;
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smd->addrs[i] = current_address;
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current_address += grub_host_to_target_addr (s->sh_size);
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return current_address;
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}
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@ -1790,9 +1787,7 @@ SUFFIX (put_section) (Elf_Shdr *s, int i,
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*/
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static void
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SUFFIX (locate_sections) (Elf_Ehdr *e, const char *kernel_path,
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Elf_Shdr *sections, Elf_Half section_entsize,
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Elf_Half num_sections, Elf_Addr *section_addresses,
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Elf_Addr *section_vaddresses, const char *strtab,
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struct section_metadata *smd,
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struct grub_mkimage_layout *layout,
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const struct grub_install_image_target_desc *image_target)
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{
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@ -1804,28 +1799,23 @@ SUFFIX (locate_sections) (Elf_Ehdr *e, const char *kernel_path,
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if (image_target->elf_target == EM_AARCH64)
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layout->align = 4096;
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layout->kernel_size = 0;
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for (i = 0, s = sections;
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i < num_sections;
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i++, s = (Elf_Shdr *) ((char *) s + section_entsize))
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for (i = 0, s = smd->sections;
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i < smd->num_sections;
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i++, s = (Elf_Shdr *) ((char *) s + smd->section_entsize))
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if ((grub_target_to_host (s->sh_flags) & SHF_ALLOC)
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&& grub_host_to_target32 (s->sh_addralign) > layout->align)
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layout->align = grub_host_to_target32 (s->sh_addralign);
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/* .text */
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for (i = 0, s = sections;
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i < num_sections;
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i++, s = (Elf_Shdr *) ((char *) s + section_entsize))
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for (i = 0, s = smd->sections;
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i < smd->num_sections;
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i++, s = (Elf_Shdr *) ((char *) s + smd->section_entsize))
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if (SUFFIX (is_text_section) (s, image_target))
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{
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layout->kernel_size = SUFFIX (put_section) (s, i,
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layout->kernel_size,
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section_addresses,
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strtab,
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image_target);
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layout->kernel_size = SUFFIX (put_section) (s, i, layout->kernel_size,
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smd, image_target);
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if (!is_relocatable (image_target) &&
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grub_host_to_target_addr (s->sh_addr) != image_target->link_addr)
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{
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@ -1845,15 +1835,12 @@ SUFFIX (locate_sections) (Elf_Ehdr *e, const char *kernel_path,
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layout->exec_size = layout->kernel_size;
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/* .data */
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for (i = 0, s = sections;
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i < num_sections;
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i++, s = (Elf_Shdr *) ((char *) s + section_entsize))
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for (i = 0, s = smd->sections;
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i < smd->num_sections;
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i++, s = (Elf_Shdr *) ((char *) s + smd->section_entsize))
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if (SUFFIX (is_data_section) (s, image_target))
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layout->kernel_size = SUFFIX (put_section) (s, i,
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layout->kernel_size,
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section_addresses,
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strtab,
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image_target);
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layout->kernel_size = SUFFIX (put_section) (s, i, layout->kernel_size, smd,
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image_target);
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#ifdef MKIMAGE_ELF32
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if (image_target->elf_target == EM_ARM)
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@ -1864,8 +1851,8 @@ SUFFIX (locate_sections) (Elf_Ehdr *e, const char *kernel_path,
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layout->kernel_size = ALIGN_UP (layout->kernel_size, 16);
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tramp = arm_get_trampoline_size (e, sections, section_entsize,
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num_sections, image_target);
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tramp = arm_get_trampoline_size (e, smd->sections, smd->section_entsize,
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smd->num_sections, image_target);
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layout->tramp_off = layout->kernel_size;
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layout->kernel_size += ALIGN_UP (tramp, 16);
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@ -1876,18 +1863,17 @@ SUFFIX (locate_sections) (Elf_Ehdr *e, const char *kernel_path,
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layout->end = layout->kernel_size;
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/* .bss */
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for (i = 0, s = sections;
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i < num_sections;
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i++, s = (Elf_Shdr *) ((char *) s + section_entsize))
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for (i = 0, s = smd->sections;
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i < smd->num_sections;
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i++, s = (Elf_Shdr *) ((char *) s + smd->section_entsize))
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{
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if (SUFFIX (is_bss_section) (s, image_target))
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layout->end = SUFFIX (put_section) (s, i, layout->end,
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section_addresses, strtab,
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image_target);
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layout->end = SUFFIX (put_section) (s, i, layout->end, smd, image_target);
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/*
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* This must to be in the last time this function passes through the loop.
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*/
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section_vaddresses[i] = section_addresses[i] + image_target->vaddr_offset;
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smd->vaddrs[i] = smd->addrs[i] + image_target->vaddr_offset;
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}
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layout->end = ALIGN_UP (layout->end + image_target->vaddr_offset,
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@ -1908,18 +1894,12 @@ SUFFIX (grub_mkimage_load_image) (const char *kernel_path,
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const struct grub_install_image_target_desc *image_target)
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{
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char *kernel_img, *out_img;
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const char *strtab;
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struct section_metadata smd = { 0, };
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Elf_Ehdr *e;
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Elf_Shdr *sections;
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Elf_Addr *section_addresses;
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Elf_Addr *section_vaddresses;
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int i;
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Elf_Shdr *s;
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Elf_Half num_sections;
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Elf_Off section_offset;
|
||||
Elf_Half section_entsize;
|
||||
grub_size_t kernel_size;
|
||||
Elf_Shdr *symtab_section = 0;
|
||||
|
||||
grub_memset (layout, 0, sizeof (*layout));
|
||||
|
||||
|
|
@ -1934,39 +1914,38 @@ SUFFIX (grub_mkimage_load_image) (const char *kernel_path,
|
|||
grub_util_error ("invalid ELF header");
|
||||
|
||||
section_offset = grub_target_to_host (e->e_shoff);
|
||||
section_entsize = grub_target_to_host16 (e->e_shentsize);
|
||||
num_sections = grub_target_to_host16 (e->e_shnum);
|
||||
smd.section_entsize = grub_target_to_host16 (e->e_shentsize);
|
||||
smd.num_sections = grub_target_to_host16 (e->e_shnum);
|
||||
|
||||
if (kernel_size < section_offset + (grub_uint32_t) section_entsize * num_sections)
|
||||
if (kernel_size < section_offset
|
||||
+ (grub_uint32_t) smd.section_entsize * smd.num_sections)
|
||||
grub_util_error (_("premature end of file %s"), kernel_path);
|
||||
|
||||
sections = (Elf_Shdr *) (kernel_img + section_offset);
|
||||
smd.sections = (Elf_Shdr *) (kernel_img + section_offset);
|
||||
|
||||
/* Relocate sections then symbols in the virtual address space. */
|
||||
s = (Elf_Shdr *) ((char *) sections
|
||||
+ grub_host_to_target16 (e->e_shstrndx) * section_entsize);
|
||||
strtab = (char *) e + grub_host_to_target_addr (s->sh_offset);
|
||||
s = (Elf_Shdr *) ((char *) smd.sections
|
||||
+ grub_host_to_target16 (e->e_shstrndx) * smd.section_entsize);
|
||||
smd.strtab = (char *) e + grub_host_to_target_addr (s->sh_offset);
|
||||
|
||||
section_addresses = xmalloc (sizeof (*section_addresses) * num_sections);
|
||||
memset (section_addresses, 0, sizeof (*section_addresses) * num_sections);
|
||||
section_vaddresses = xmalloc (sizeof (*section_vaddresses) * num_sections);
|
||||
memset (section_vaddresses, 0, sizeof (*section_vaddresses) * num_sections);
|
||||
smd.addrs = xmalloc (sizeof (*smd.addrs) * smd.num_sections);
|
||||
memset (smd.addrs, 0, sizeof (*smd.addrs) * smd.num_sections);
|
||||
smd.vaddrs = xmalloc (sizeof (*smd.vaddrs) * smd.num_sections);
|
||||
memset (smd.vaddrs, 0, sizeof (*smd.vaddrs) * smd.num_sections);
|
||||
|
||||
SUFFIX (locate_sections) (e, kernel_path, sections, section_entsize, num_sections,
|
||||
section_addresses, section_vaddresses, strtab, layout,
|
||||
image_target);
|
||||
SUFFIX (locate_sections) (e, kernel_path, &smd, layout, image_target);
|
||||
|
||||
if (!is_relocatable (image_target))
|
||||
{
|
||||
Elf_Addr current_address = layout->kernel_size;
|
||||
|
||||
for (i = 0, s = sections;
|
||||
i < num_sections;
|
||||
i++, s = (Elf_Shdr *) ((char *) s + section_entsize))
|
||||
for (i = 0, s = smd.sections;
|
||||
i < smd.num_sections;
|
||||
i++, s = (Elf_Shdr *) ((char *) s + smd.section_entsize))
|
||||
if (grub_target_to_host32 (s->sh_type) == SHT_NOBITS)
|
||||
{
|
||||
Elf_Word sec_align = grub_host_to_target_addr (s->sh_addralign);
|
||||
const char *name = strtab + grub_host_to_target32 (s->sh_name);
|
||||
const char *name = smd.strtab + grub_host_to_target32 (s->sh_name);
|
||||
|
||||
if (sec_align)
|
||||
current_address = ALIGN_UP (current_address
|
||||
|
|
@ -1981,7 +1960,7 @@ SUFFIX (grub_mkimage_load_image) (const char *kernel_path,
|
|||
current_address = grub_host_to_target_addr (s->sh_addr)
|
||||
- image_target->link_addr;
|
||||
|
||||
section_vaddresses[i] = current_address
|
||||
smd.vaddrs[i] = current_address
|
||||
+ image_target->vaddr_offset;
|
||||
current_address += grub_host_to_target_addr (s->sh_size);
|
||||
}
|
||||
|
|
@ -2002,16 +1981,16 @@ SUFFIX (grub_mkimage_load_image) (const char *kernel_path,
|
|||
|
||||
if (is_relocatable (image_target))
|
||||
{
|
||||
symtab_section = NULL;
|
||||
for (i = 0, s = sections;
|
||||
i < num_sections;
|
||||
i++, s = (Elf_Shdr *) ((char *) s + section_entsize))
|
||||
smd.symtab = NULL;
|
||||
for (i = 0, s = smd.sections;
|
||||
i < smd.num_sections;
|
||||
i++, s = (Elf_Shdr *) ((char *) s + smd.section_entsize))
|
||||
if (s->sh_type == grub_host_to_target32 (SHT_SYMTAB))
|
||||
{
|
||||
symtab_section = s;
|
||||
smd.symtab = s;
|
||||
break;
|
||||
}
|
||||
if (! symtab_section)
|
||||
if (! smd.symtab)
|
||||
grub_util_error ("%s", _("no symbol table"));
|
||||
#ifdef MKIMAGE_ELF64
|
||||
if (image_target->elf_target == EM_IA_64)
|
||||
|
|
@ -2026,7 +2005,7 @@ SUFFIX (grub_mkimage_load_image) (const char *kernel_path,
|
|||
layout->kernel_size += ALIGN_UP (tramp, 16);
|
||||
|
||||
layout->ia64jmp_off = layout->kernel_size;
|
||||
layout->ia64jmpnum = SUFFIX (count_funcs) (e, symtab_section,
|
||||
layout->ia64jmpnum = SUFFIX (count_funcs) (e, smd.symtab,
|
||||
image_target);
|
||||
layout->kernel_size += 16 * layout->ia64jmpnum;
|
||||
|
||||
|
|
@ -2057,31 +2036,19 @@ SUFFIX (grub_mkimage_load_image) (const char *kernel_path,
|
|||
|
||||
if (is_relocatable (image_target))
|
||||
{
|
||||
layout->start_address = SUFFIX (relocate_symbols) (e, sections, symtab_section,
|
||||
section_vaddresses, section_entsize,
|
||||
num_sections,
|
||||
(char *) out_img + layout->ia64jmp_off,
|
||||
layout->ia64jmp_off
|
||||
+ image_target->vaddr_offset,
|
||||
layout->bss_start,
|
||||
layout->end,
|
||||
image_target);
|
||||
layout->start_address = SUFFIX (relocate_symbols) (e, &smd,
|
||||
(char *) out_img + layout->ia64jmp_off,
|
||||
layout->ia64jmp_off + image_target->vaddr_offset,
|
||||
layout->bss_start, layout->end, image_target);
|
||||
|
||||
if (layout->start_address == (Elf_Addr) -1)
|
||||
grub_util_error ("start symbol is not defined");
|
||||
|
||||
/* Resolve addresses in the virtual address space. */
|
||||
SUFFIX (relocate_addresses) (e, sections, section_addresses,
|
||||
section_entsize,
|
||||
num_sections, strtab,
|
||||
out_img, layout->tramp_off,
|
||||
layout->got_off,
|
||||
image_target);
|
||||
/* Resolve addrs in the virtual address space. */
|
||||
SUFFIX (relocate_addrs) (e, &smd, out_img, layout->tramp_off,
|
||||
layout->got_off, image_target);
|
||||
|
||||
make_reloc_section (e, layout,
|
||||
section_vaddresses, sections,
|
||||
section_entsize, num_sections,
|
||||
strtab,
|
||||
image_target);
|
||||
make_reloc_section (e, layout, &smd, image_target);
|
||||
if (image_target->id != IMAGE_EFI)
|
||||
{
|
||||
out_img = xrealloc (out_img, layout->kernel_size + total_module_size
|
||||
|
|
@ -2093,9 +2060,9 @@ SUFFIX (grub_mkimage_load_image) (const char *kernel_path,
|
|||
}
|
||||
}
|
||||
|
||||
for (i = 0, s = sections;
|
||||
i < num_sections;
|
||||
i++, s = (Elf_Shdr *) ((char *) s + section_entsize))
|
||||
for (i = 0, s = smd.sections;
|
||||
i < smd.num_sections;
|
||||
i++, s = (Elf_Shdr *) ((char *) s + smd.section_entsize))
|
||||
if (SUFFIX (is_data_section) (s, image_target)
|
||||
/* Explicitly initialize BSS
|
||||
when producing PE32 to avoid a bug in EFI implementations.
|
||||
|
|
@ -2106,17 +2073,19 @@ SUFFIX (grub_mkimage_load_image) (const char *kernel_path,
|
|||
|| SUFFIX (is_text_section) (s, image_target))
|
||||
{
|
||||
if (grub_target_to_host32 (s->sh_type) == SHT_NOBITS)
|
||||
memset (out_img + section_addresses[i], 0,
|
||||
memset (out_img + smd.addrs[i], 0,
|
||||
grub_host_to_target_addr (s->sh_size));
|
||||
else
|
||||
memcpy (out_img + section_addresses[i],
|
||||
memcpy (out_img + smd.addrs[i],
|
||||
kernel_img + grub_host_to_target_addr (s->sh_offset),
|
||||
grub_host_to_target_addr (s->sh_size));
|
||||
}
|
||||
free (kernel_img);
|
||||
|
||||
free (section_vaddresses);
|
||||
free (section_addresses);
|
||||
free (smd.vaddrs);
|
||||
smd.vaddrs = NULL;
|
||||
free (smd.addrs);
|
||||
smd.addrs = NULL;
|
||||
|
||||
return out_img;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue