void
grub_reboot (void)
{
struct grub_relocator *relocator = NULL;
grub_relocator_chunk_t ch;
grub_err_t err;
void *buf;
struct grub_relocator16_state state;
grub_uint16_t segment;
relocator = grub_relocator_new ();
if (!relocator)
while (1);
err = grub_relocator_alloc_chunk_align (relocator, &ch, 0x1000, 0x1000,
grub_reboot_end - grub_reboot_start,
16, GRUB_RELOCATOR_PREFERENCE_NONE,
0);
if (err)
while (1);
buf = get_virtual_current_address (ch);
grub_memcpy (buf, grub_reboot_start, grub_reboot_end - grub_reboot_start);
segment = ((grub_addr_t) get_physical_target_address (ch)) >> 4;
state.gs = state.fs = state.es = state.ds = state.ss = segment;
state.sp = 0;
state.cs = segment;
state.ip = 0;
state.a20 = 0;
grub_stop_floppy ();
err = grub_relocator16_boot (relocator, state);
while (1);
}
static grub_err_t
load_kernel (grub_file_t file, const char *filename,
char *buffer, struct multiboot_header *header)
{
grub_err_t err;
if (grub_multiboot_quirks & GRUB_MULTIBOOT_QUIRK_BAD_KLUDGE)
{
err = grub_multiboot_load_elf (file, filename, buffer);
if (err == GRUB_ERR_NONE) {
return GRUB_ERR_NONE;
}
if (err == GRUB_ERR_UNKNOWN_OS && (header->flags & MULTIBOOT_AOUT_KLUDGE))
grub_errno = err = GRUB_ERR_NONE;
}
if (header->flags & MULTIBOOT_AOUT_KLUDGE)
{
int offset = ((char *) header - buffer -
(header->header_addr - header->load_addr));
int load_size = ((header->load_end_addr == 0) ? file->size - offset :
header->load_end_addr - header->load_addr);
grub_size_t code_size;
void *source;
grub_relocator_chunk_t ch;
if (header->bss_end_addr)
code_size = (header->bss_end_addr - header->load_addr);
else
code_size = load_size;
err = grub_relocator_alloc_chunk_addr (grub_multiboot_relocator,
&ch, header->load_addr,
code_size);
if (err)
{
grub_dprintf ("multiboot_loader", "Error loading aout kludge\n");
return err;
}
source = get_virtual_current_address (ch);
if ((grub_file_seek (file, offset)) == (grub_off_t) -1)
{
return grub_errno;
}
grub_file_read (file, source, load_size);
if (grub_errno)
return grub_errno;
if (header->bss_end_addr)
grub_memset ((grub_uint8_t *) source + load_size, 0,
header->bss_end_addr - header->load_addr - load_size);
grub_multiboot_payload_eip = header->entry_addr;
return GRUB_ERR_NONE;
}
return grub_multiboot_load_elf (file, filename, buffer);
}
grub_err_t
grub_relocator16_boot (struct grub_relocator *rel,
struct grub_relocator16_state state)
{
grub_err_t err;
void *relst;
grub_relocator_chunk_t ch;
/* Put it higher than the byte it checks for A20 check. */
err = grub_relocator_alloc_chunk_align (rel, &ch, 0x8010,
0xa0000 - RELOCATOR_SIZEOF (16)
- GRUB_RELOCATOR16_STACK_SIZE,
RELOCATOR_SIZEOF (16)
+ GRUB_RELOCATOR16_STACK_SIZE, 16,
GRUB_RELOCATOR_PREFERENCE_NONE,
0);
if (err)
return err;
grub_relocator16_cs = state.cs;
grub_relocator16_ip = state.ip;
grub_relocator16_ds = state.ds;
grub_relocator16_es = state.es;
grub_relocator16_fs = state.fs;
grub_relocator16_gs = state.gs;
grub_relocator16_ss = state.ss;
grub_relocator16_sp = state.sp;
grub_relocator16_ebp = state.ebp;
grub_relocator16_ebx = state.ebx;
grub_relocator16_edx = state.edx;
grub_relocator16_esi = state.esi;
#ifdef GRUB_MACHINE_PCBIOS
grub_relocator16_idt = *grub_realidt;
#else
grub_relocator16_idt.base = 0;
grub_relocator16_idt.limit = 0;
#endif
grub_relocator16_keep_a20_enabled = state.a20;
grub_memmove (get_virtual_current_address (ch), &grub_relocator16_start,
RELOCATOR_SIZEOF (16));
err = grub_relocator_prepare_relocs (rel, get_physical_target_address (ch),
&relst, NULL);
if (err)
return err;
asm volatile ("cli");
((void (*) (void)) relst) ();
/* Not reached. */
return GRUB_ERR_NONE;
}
grub_err_t
grub_relocator32_boot (struct grub_relocator *rel,
struct grub_relocator32_state state,
int avoid_efi_bootservices)
{
grub_err_t err;
void *relst;
grub_relocator_chunk_t ch;
err = grub_relocator_alloc_chunk_align (rel, &ch, 0,
(0xffffffff - RELOCATOR_SIZEOF (32))
+ 1, RELOCATOR_SIZEOF (32), 16,
GRUB_RELOCATOR_PREFERENCE_NONE,
avoid_efi_bootservices);
if (err)
return err;
grub_relocator32_eax = state.eax;
grub_relocator32_ebx = state.ebx;
grub_relocator32_ecx = state.ecx;
grub_relocator32_edx = state.edx;
grub_relocator32_eip = state.eip;
grub_relocator32_esp = state.esp;
grub_relocator32_ebp = state.ebp;
grub_relocator32_esi = state.esi;
grub_relocator32_edi = state.edi;
grub_memmove (get_virtual_current_address (ch), &grub_relocator32_start,
RELOCATOR_SIZEOF (32));
err = grub_relocator_prepare_relocs (rel, get_physical_target_address (ch),
&relst, NULL);
if (err)
return err;
asm volatile ("cli");
((void (*) (void)) relst) ();
/* Not reached. */
return GRUB_ERR_NONE;
}
grub_err_t
grub_relocator64_boot (struct grub_relocator *rel,
struct grub_relocator64_state state,
grub_addr_t min_addr, grub_addr_t max_addr)
{
grub_err_t err;
void *relst;
grub_relocator_chunk_t ch;
err = grub_relocator_alloc_chunk_align (rel, &ch, min_addr,
max_addr - RELOCATOR_SIZEOF (64),
RELOCATOR_SIZEOF (64), 16,
GRUB_RELOCATOR_PREFERENCE_NONE,
0);
if (err)
return err;
grub_relocator64_rax = state.rax;
grub_relocator64_rbx = state.rbx;
grub_relocator64_rcx = state.rcx;
grub_relocator64_rdx = state.rdx;
grub_relocator64_rip = state.rip;
grub_relocator64_rsp = state.rsp;
grub_relocator64_rsi = state.rsi;
grub_relocator64_cr3 = state.cr3;
grub_memmove (get_virtual_current_address (ch), &grub_relocator64_start,
RELOCATOR_SIZEOF (64));
err = grub_relocator_prepare_relocs (rel, get_physical_target_address (ch),
&relst, NULL);
if (err)
return err;
asm volatile ("cli");
((void (*) (void)) relst) ();
/* Not reached. */
return GRUB_ERR_NONE;
}
static grub_err_t
grub_chain_elf32_hook (Elf32_Phdr * phdr, grub_addr_t * addr, int *do_load)
{
grub_err_t err;
grub_relocator_chunk_t ch;
if (phdr->p_type != PT_LOAD)
{
*do_load = 0;
return 0;
}
*do_load = 1;
err = grub_relocator_alloc_chunk_addr (relocator, &ch,
phdr->p_paddr, phdr->p_memsz);
if (err)
return err;
*addr = (grub_addr_t) get_virtual_current_address (ch);
return GRUB_ERR_NONE;
}
grub_err_t
SUFFIX (grub_netbsd_load_elf_meta) (struct grub_relocator *relocator,
grub_file_t file, grub_addr_t *kern_end)
{
grub_err_t err;
Elf_Ehdr e;
Elf_Shdr *s, *symsh, *strsh;
char *shdr = NULL;
unsigned symsize, strsize;
void *sym_chunk;
grub_uint8_t *curload;
grub_size_t chunk_size;
Elf_Ehdr *e2;
struct grub_netbsd_btinfo_symtab symtab;
grub_addr_t symtarget;
err = read_headers (file, &e, &shdr);
if (err)
return err;
for (s = (Elf_Shdr *) shdr; s < (Elf_Shdr *) (shdr
+ e.e_shnum * e.e_shentsize);
s = (Elf_Shdr *) ((char *) s + e.e_shentsize))
if (s->sh_type == SHT_SYMTAB)
break;
if (s >= (Elf_Shdr *) ((char *) shdr
+ e.e_shnum * e.e_shentsize))
return GRUB_ERR_NONE;
symsize = s->sh_size;
symsh = s;
s = (Elf_Shdr *) (shdr + e.e_shentsize * s->sh_link);
strsize = s->sh_size;
strsh = s;
chunk_size = ALIGN_UP (symsize, sizeof (grub_freebsd_addr_t))
+ ALIGN_UP (strsize, sizeof (grub_freebsd_addr_t))
+ sizeof (e) + e.e_shnum * e.e_shentsize;
symtarget = ALIGN_UP (*kern_end, sizeof (grub_freebsd_addr_t));
{
grub_relocator_chunk_t ch;
err = grub_relocator_alloc_chunk_addr (relocator, &ch,
symtarget, chunk_size);
if (err)
return err;
sym_chunk = get_virtual_current_address (ch);
}
symtab.nsyms = 1;
symtab.ssyms = symtarget;
symtab.esyms = symtarget + chunk_size;
curload = sym_chunk;
e2 = (Elf_Ehdr *) curload;
grub_memcpy (curload, &e, sizeof (e));
e2->e_phoff = 0;
e2->e_phnum = 0;
e2->e_phentsize = 0;
e2->e_shstrndx = 0;
e2->e_shoff = sizeof (e);
curload += sizeof (e);
for (s = (Elf_Shdr *) shdr; s < (Elf_Shdr *) (shdr
+ e.e_shnum * e.e_shentsize);
s = (Elf_Shdr *) ((char *) s + e.e_shentsize))
{
Elf_Shdr *s2;
s2 = (Elf_Shdr *) curload;
grub_memcpy (curload, s, e.e_shentsize);
if (s == symsh)
s2->sh_offset = sizeof (e) + e.e_shnum * e.e_shentsize;
else if (s == strsh)
s2->sh_offset = ALIGN_UP (symsize, sizeof (grub_freebsd_addr_t))
+ sizeof (e) + e.e_shnum * e.e_shentsize;
else
s2->sh_offset = 0;
s2->sh_addr = s2->sh_offset;
curload += e.e_shentsize;
}
if (grub_file_seek (file, symsh->sh_offset) == (grub_off_t) -1)
return grub_errno;
if (grub_file_read (file, curload, symsize) != (grub_ssize_t) symsize)
{
if (! grub_errno)
return grub_error (GRUB_ERR_BAD_OS, "invalid ELF");
return grub_errno;
}
curload += ALIGN_UP (symsize, sizeof (grub_freebsd_addr_t));
if (grub_file_seek (file, strsh->sh_offset) == (grub_off_t) -1)
return grub_errno;
if (grub_file_read (file, curload, strsize) != (grub_ssize_t) strsize)
{
if (! grub_errno)
return grub_error (GRUB_ERR_BAD_OS, "invalid ELF");
return grub_errno;
}
err = grub_bsd_add_meta (NETBSD_BTINFO_SYMTAB,
&symtab,
sizeof (symtab));
if (err)
return err;
*kern_end = ALIGN_PAGE (symtarget + chunk_size);
return GRUB_ERR_NONE;
}
grub_err_t
SUFFIX (grub_freebsd_load_elf_meta) (struct grub_relocator *relocator,
grub_file_t file, grub_addr_t *kern_end)
{
grub_err_t err;
Elf_Ehdr e;
Elf_Shdr *s;
char *shdr = 0;
unsigned symoff, stroff, symsize, strsize;
grub_freebsd_addr_t symstart, symend, symentsize, dynamic;
Elf_Sym *sym;
void *sym_chunk;
grub_uint8_t *curload;
grub_freebsd_addr_t symtarget;
const char *str;
unsigned i;
grub_size_t chunk_size;
err = read_headers (file, &e, &shdr);
if (err)
return err;
err = grub_bsd_add_meta (FREEBSD_MODINFO_METADATA |
FREEBSD_MODINFOMD_ELFHDR, &e,
sizeof (e));
if (err)
return err;
for (s = (Elf_Shdr *) shdr; s < (Elf_Shdr *) (shdr
+ e.e_shnum * e.e_shentsize);
s = (Elf_Shdr *) ((char *) s + e.e_shentsize))
if (s->sh_type == SHT_SYMTAB)
break;
if (s >= (Elf_Shdr *) ((char *) shdr
+ e.e_shnum * e.e_shentsize))
return grub_error (GRUB_ERR_BAD_OS, "no symbol table");
symoff = s->sh_offset;
symsize = s->sh_size;
symentsize = s->sh_entsize;
s = (Elf_Shdr *) (shdr + e.e_shentsize * s->sh_link);
stroff = s->sh_offset;
strsize = s->sh_size;
chunk_size = ALIGN_UP (symsize + strsize, sizeof (grub_freebsd_addr_t))
+ 2 * sizeof (grub_freebsd_addr_t);
symtarget = ALIGN_UP (*kern_end, sizeof (grub_freebsd_addr_t));
{
grub_relocator_chunk_t ch;
err = grub_relocator_alloc_chunk_addr (relocator, &ch,
symtarget, chunk_size);
if (err)
return err;
sym_chunk = get_virtual_current_address (ch);
}
symstart = symtarget;
symend = symstart + chunk_size;
curload = sym_chunk;
*((grub_freebsd_addr_t *) curload) = symsize;
curload += sizeof (grub_freebsd_addr_t);
if (grub_file_seek (file, symoff) == (grub_off_t) -1)
return grub_errno;
sym = (Elf_Sym *) curload;
if (grub_file_read (file, curload, symsize) != (grub_ssize_t) symsize)
{
if (! grub_errno)
return grub_error (GRUB_ERR_BAD_OS, "invalid ELF");
return grub_errno;
}
curload += symsize;
*((grub_freebsd_addr_t *) curload) = strsize;
curload += sizeof (grub_freebsd_addr_t);
if (grub_file_seek (file, stroff) == (grub_off_t) -1)
return grub_errno;
str = (char *) curload;
if (grub_file_read (file, curload, strsize) != (grub_ssize_t) strsize)
{
if (! grub_errno)
return grub_error (GRUB_ERR_BAD_OS, "invalid ELF");
return grub_errno;
}
for (i = 0;
i * symentsize < symsize;
i++, sym = (Elf_Sym *) ((char *) sym + symentsize))
{
const char *name = str + sym->st_name;
if (grub_strcmp (name, "_DYNAMIC") == 0)
break;
}
if (i * symentsize < symsize)
{
dynamic = sym->st_value;
grub_dprintf ("bsd", "dynamic = %llx\n", (unsigned long long) dynamic);
err = grub_bsd_add_meta (FREEBSD_MODINFO_METADATA |
FREEBSD_MODINFOMD_DYNAMIC, &dynamic,
sizeof (dynamic));
if (err)
return err;
}
err = grub_bsd_add_meta (FREEBSD_MODINFO_METADATA |
FREEBSD_MODINFOMD_SSYM, &symstart,
sizeof (symstart));
if (err)
return err;
err = grub_bsd_add_meta (FREEBSD_MODINFO_METADATA |
FREEBSD_MODINFOMD_ESYM, &symend,
sizeof (symend));
if (err)
return err;
*kern_end = ALIGN_PAGE (symend);
return GRUB_ERR_NONE;
}
grub_err_t
SUFFIX (grub_freebsd_load_elfmodule) (struct grub_relocator *relocator,
grub_file_t file, int argc, char *argv[],
grub_addr_t *kern_end)
{
Elf_Ehdr e;
Elf_Shdr *s;
char *shdr = 0;
grub_addr_t curload, module;
grub_err_t err;
grub_size_t chunk_size = 0;
void *chunk_src;
err = read_headers (file, &e, &shdr);
if (err)
return err;
curload = module = ALIGN_PAGE (*kern_end);
for (s = (Elf_Shdr *) shdr; s < (Elf_Shdr *) ((char *) shdr
+ e.e_shnum * e.e_shentsize);
s = (Elf_Shdr *) ((char *) s + e.e_shentsize))
{
if (s->sh_size == 0)
continue;
if (! (s->sh_flags & SHF_ALLOC))
continue;
if (chunk_size < s->sh_addr + s->sh_size)
chunk_size = s->sh_addr + s->sh_size;
}
if (chunk_size < sizeof (e))
chunk_size = sizeof (e);
chunk_size += e.e_phnum * e.e_phentsize;
chunk_size += e.e_shnum * e.e_shentsize;
{
grub_relocator_chunk_t ch;
err = grub_relocator_alloc_chunk_addr (relocator, &ch,
module, chunk_size);
if (err)
return err;
chunk_src = get_virtual_current_address (ch);
}
for (s = (Elf_Shdr *) shdr; s < (Elf_Shdr *) ((char *) shdr
+ e.e_shnum * e.e_shentsize);
s = (Elf_Shdr *) ((char *) s + e.e_shentsize))
{
if (s->sh_size == 0)
continue;
if (! (s->sh_flags & SHF_ALLOC))
continue;
grub_dprintf ("bsd", "loading section to %x, size %d, align %d\n",
(unsigned) curload, (int) s->sh_size,
(int) s->sh_addralign);
switch (s->sh_type)
{
default:
case SHT_PROGBITS:
err = load (file, (grub_uint8_t *) chunk_src + module
+ s->sh_addr - *kern_end,
s->sh_offset, s->sh_size);
if (err)
return err;
break;
case SHT_NOBITS:
grub_memset ((grub_uint8_t *) chunk_src + module
+ s->sh_addr - *kern_end, 0, s->sh_size);
break;
}
if (curload < module + s->sh_addr + s->sh_size)
curload = module + s->sh_addr + s->sh_size;
}
load (file, UINT_TO_PTR (module), 0, sizeof (e));
if (curload < module + sizeof (e))
curload = module + sizeof (e);
load (file, UINT_TO_PTR (curload), e.e_shoff,
e.e_shnum * e.e_shentsize);
e.e_shoff = curload - module;
curload += e.e_shnum * e.e_shentsize;
load (file, UINT_TO_PTR (curload), e.e_phoff,
e.e_phnum * e.e_phentsize);
e.e_phoff = curload - module;
curload += e.e_phnum * e.e_phentsize;
*kern_end = curload;
grub_freebsd_add_meta_module (argv[0], FREEBSD_MODTYPE_ELF_MODULE,
argc - 1, argv + 1, module,
curload - module);
return SUFFIX (grub_freebsd_load_elf_meta) (relocator, file, kern_end);
}
grub_err_t
grub_multiboot_make_mbi (grub_uint32_t *target)
{
grub_properly_aligned_t *ptrorig;
grub_properly_aligned_t *mbistart;
grub_err_t err;
grub_size_t bufsize;
grub_relocator_chunk_t ch;
bufsize = grub_multiboot_get_mbi_size ();
COMPILE_TIME_ASSERT (MULTIBOOT_TAG_ALIGN % sizeof (grub_properly_aligned_t) == 0);
err = grub_relocator_alloc_chunk_align (grub_multiboot_relocator, &ch,
0, 0xffffffff - bufsize,
bufsize, MULTIBOOT_TAG_ALIGN,
GRUB_RELOCATOR_PREFERENCE_NONE, 1);
if (err)
return err;
ptrorig = get_virtual_current_address (ch);
#if defined (__i386__) || defined (__x86_64__)
*target = get_physical_target_address (ch);
#elif defined (__mips)
*target = get_physical_target_address (ch) | 0x80000000;
#else
#error Please complete this
#endif
mbistart = ptrorig;
COMPILE_TIME_ASSERT ((2 * sizeof (grub_uint32_t))
% sizeof (grub_properly_aligned_t) == 0);
COMPILE_TIME_ASSERT (MULTIBOOT_TAG_ALIGN
% sizeof (grub_properly_aligned_t) == 0);
ptrorig += (2 * sizeof (grub_uint32_t)) / sizeof (grub_properly_aligned_t);
{
struct multiboot_tag_string *tag = (struct multiboot_tag_string *) ptrorig;
tag->type = MULTIBOOT_TAG_TYPE_CMDLINE;
tag->size = sizeof (struct multiboot_tag_string) + cmdline_size;
grub_memcpy (tag->string, cmdline, cmdline_size);
ptrorig += ALIGN_UP (tag->size, MULTIBOOT_TAG_ALIGN)
/ sizeof (grub_properly_aligned_t);
}
{
struct multiboot_tag_string *tag = (struct multiboot_tag_string *) ptrorig;
tag->type = MULTIBOOT_TAG_TYPE_BOOT_LOADER_NAME;
tag->size = sizeof (struct multiboot_tag_string) + sizeof (PACKAGE_STRING);
grub_memcpy (tag->string, PACKAGE_STRING, sizeof (PACKAGE_STRING));
ptrorig += ALIGN_UP (tag->size, MULTIBOOT_TAG_ALIGN)
/ sizeof (grub_properly_aligned_t);
}
#ifdef GRUB_MACHINE_PCBIOS
{
struct grub_apm_info info;
if (grub_apm_get_info (&info))
{
struct multiboot_tag_apm *tag = (struct multiboot_tag_apm *) ptrorig;
tag->type = MULTIBOOT_TAG_TYPE_APM;
tag->size = sizeof (struct multiboot_tag_apm);
tag->cseg = info.cseg;
tag->offset = info.offset;
tag->cseg_16 = info.cseg_16;
tag->dseg = info.dseg;
tag->flags = info.flags;
tag->cseg_len = info.cseg_len;
tag->dseg_len = info.dseg_len;
tag->cseg_16_len = info.cseg_16_len;
tag->version = info.version;
ptrorig += ALIGN_UP (tag->size, MULTIBOOT_TAG_ALIGN)
/ sizeof (grub_properly_aligned_t);
}
}
#endif
{
unsigned i;
struct module *cur;
for (i = 0, cur = modules; i < modcnt; i++, cur = cur->next)
{
struct multiboot_tag_module *tag
= (struct multiboot_tag_module *) ptrorig;
tag->type = MULTIBOOT_TAG_TYPE_MODULE;
tag->size = sizeof (struct multiboot_tag_module) + cur->cmdline_size;
tag->mod_start = cur->start;
tag->mod_end = tag->mod_start + cur->size;
grub_memcpy (tag->cmdline, cur->cmdline, cur->cmdline_size);
ptrorig += ALIGN_UP (tag->size, MULTIBOOT_TAG_ALIGN)
/ sizeof (grub_properly_aligned_t);
}
}
{
struct multiboot_tag_mmap *tag = (struct multiboot_tag_mmap *) ptrorig;
grub_fill_multiboot_mmap (tag);
ptrorig += ALIGN_UP (tag->size, MULTIBOOT_TAG_ALIGN)
/ sizeof (grub_properly_aligned_t);
}
{
struct multiboot_tag_elf_sections *tag
= (struct multiboot_tag_elf_sections *) ptrorig;
tag->type = MULTIBOOT_TAG_TYPE_ELF_SECTIONS;
tag->size = sizeof (struct multiboot_tag_elf_sections)
+ elf_sec_entsize * elf_sec_num;
grub_memcpy (tag->sections, elf_sections, elf_sec_entsize * elf_sec_num);
tag->num = elf_sec_num;
tag->entsize = elf_sec_entsize;
tag->shndx = elf_sec_shstrndx;
ptrorig += ALIGN_UP (tag->size, MULTIBOOT_TAG_ALIGN)
/ sizeof (grub_properly_aligned_t);
}
{
struct multiboot_tag_basic_meminfo *tag
= (struct multiboot_tag_basic_meminfo *) ptrorig;
tag->type = MULTIBOOT_TAG_TYPE_BASIC_MEMINFO;
tag->size = sizeof (struct multiboot_tag_basic_meminfo);
/* Convert from bytes to kilobytes. */
tag->mem_lower = grub_mmap_get_lower () / 1024;
tag->mem_upper = grub_mmap_get_upper () / 1024;
ptrorig += ALIGN_UP (tag->size, MULTIBOOT_TAG_ALIGN)
/ sizeof (grub_properly_aligned_t);
}
{
struct grub_net_network_level_interface *net;
FOR_NET_NETWORK_LEVEL_INTERFACES(net)
if (net->dhcp_ack)
{
struct multiboot_tag_network *tag
= (struct multiboot_tag_network *) ptrorig;
tag->type = MULTIBOOT_TAG_TYPE_NETWORK;
tag->size = sizeof (struct multiboot_tag_network) + net->dhcp_acklen;
grub_memcpy (tag->dhcpack, net->dhcp_ack, net->dhcp_acklen);
ptrorig += ALIGN_UP (tag->size, MULTIBOOT_TAG_ALIGN)
/ sizeof (grub_properly_aligned_t);
}
}
if (bootdev_set)
{
struct multiboot_tag_bootdev *tag
= (struct multiboot_tag_bootdev *) ptrorig;
tag->type = MULTIBOOT_TAG_TYPE_BOOTDEV;
tag->size = sizeof (struct multiboot_tag_bootdev);
tag->biosdev = biosdev;
tag->slice = slice;
tag->part = part;
ptrorig += ALIGN_UP (tag->size, MULTIBOOT_TAG_ALIGN)
/ sizeof (grub_properly_aligned_t);
}
{
err = retrieve_video_parameters (&ptrorig);
if (err)
{
grub_print_error ();
grub_errno = GRUB_ERR_NONE;
}
}
#if defined (GRUB_MACHINE_EFI) && defined (__x86_64__)
{
struct multiboot_tag_efi64 *tag = (struct multiboot_tag_efi64 *) ptrorig;
tag->type = MULTIBOOT_TAG_TYPE_EFI64;
tag->size = sizeof (*tag);
tag->pointer = (grub_addr_t) grub_efi_system_table;
ptrorig += ALIGN_UP (tag->size, MULTIBOOT_TAG_ALIGN)
/ sizeof (grub_properly_aligned_t);
}
#endif
#if defined (GRUB_MACHINE_EFI) && defined (__i386__)
{
struct multiboot_tag_efi32 *tag = (struct multiboot_tag_efi32 *) ptrorig;
tag->type = MULTIBOOT_TAG_TYPE_EFI32;
tag->size = sizeof (*tag);
tag->pointer = (grub_addr_t) grub_efi_system_table;
ptrorig += ALIGN_UP (tag->size, MULTIBOOT_TAG_ALIGN)
/ sizeof (grub_properly_aligned_t);
}
#endif
#if GRUB_MACHINE_HAS_ACPI
{
struct multiboot_tag_old_acpi *tag = (struct multiboot_tag_old_acpi *)
ptrorig;
struct grub_acpi_rsdp_v10 *a = grub_acpi_get_rsdpv1 ();
if (a)
{
tag->type = MULTIBOOT_TAG_TYPE_ACPI_OLD;
tag->size = sizeof (*tag) + sizeof (*a);
grub_memcpy (tag->rsdp, a, sizeof (*a));
ptrorig += ALIGN_UP (tag->size, MULTIBOOT_TAG_ALIGN)
/ sizeof (grub_properly_aligned_t);
}
}
{
struct multiboot_tag_new_acpi *tag = (struct multiboot_tag_new_acpi *)
ptrorig;
struct grub_acpi_rsdp_v20 *a = grub_acpi_get_rsdpv2 ();
if (a)
{
tag->type = MULTIBOOT_TAG_TYPE_ACPI_NEW;
tag->size = sizeof (*tag) + a->length;
grub_memcpy (tag->rsdp, a, a->length);
ptrorig += ALIGN_UP (tag->size, MULTIBOOT_TAG_ALIGN)
/ sizeof (grub_properly_aligned_t);
}
}
#endif
#ifdef GRUB_MACHINE_EFI
{
struct multiboot_tag_efi_mmap *tag = (struct multiboot_tag_efi_mmap *) ptrorig;
grub_efi_uintn_t efi_desc_size;
grub_efi_uint32_t efi_desc_version;
tag->type = MULTIBOOT_TAG_TYPE_EFI_MMAP;
tag->size = sizeof (*tag) + efi_mmap_size;
if (!keep_bs)
err = grub_efi_finish_boot_services (&efi_mmap_size, tag->efi_mmap, NULL,
&efi_desc_size, &efi_desc_version);
else
{
if (grub_efi_get_memory_map (&efi_mmap_size, (void *) tag->efi_mmap,
NULL,
&efi_desc_size, &efi_desc_version) <= 0)
err = grub_error (GRUB_ERR_IO, "couldn't retrieve memory map");
}
if (err)
return err;
tag->descr_size = efi_desc_size;
tag->descr_vers = efi_desc_version;
tag->size = sizeof (*tag) + efi_mmap_size;
ptrorig += ALIGN_UP (tag->size, MULTIBOOT_TAG_ALIGN)
/ sizeof (grub_properly_aligned_t);
}
if (keep_bs)
{
struct multiboot_tag *tag = (struct multiboot_tag *) ptrorig;
tag->type = MULTIBOOT_TAG_TYPE_EFI_BS;
tag->size = sizeof (struct multiboot_tag);
ptrorig += ALIGN_UP (tag->size, MULTIBOOT_TAG_ALIGN)
/ sizeof (grub_properly_aligned_t);
}
#endif
{
struct multiboot_tag *tag = (struct multiboot_tag *) ptrorig;
tag->type = MULTIBOOT_TAG_TYPE_END;
tag->size = sizeof (struct multiboot_tag);
ptrorig += ALIGN_UP (tag->size, MULTIBOOT_TAG_ALIGN)
/ sizeof (grub_properly_aligned_t);
}
((grub_uint32_t *) mbistart)[0] = (char *) ptrorig - (char *) mbistart;
((grub_uint32_t *) mbistart)[1] = 0;
return GRUB_ERR_NONE;
}
grub_err_t
grub_multiboot_load (grub_file_t file, const char *filename)
{
grub_properly_aligned_t *buffer;
grub_ssize_t len;
struct multiboot_header *header;
grub_err_t err;
struct multiboot_header_tag *tag;
struct multiboot_header_tag_address *addr_tag = NULL;
int entry_specified = 0;
grub_addr_t entry = 0;
grub_uint32_t console_required = 0;
struct multiboot_header_tag_framebuffer *fbtag = NULL;
int accepted_consoles = GRUB_MULTIBOOT_CONSOLE_EGA_TEXT;
buffer = grub_malloc (MULTIBOOT_SEARCH);
if (!buffer)
return grub_errno;
len = grub_file_read (file, buffer, MULTIBOOT_SEARCH);
if (len < 32)
{
grub_free (buffer);
return grub_error (GRUB_ERR_BAD_OS, N_("premature end of file %s"), filename);
}
COMPILE_TIME_ASSERT (MULTIBOOT_HEADER_ALIGN % 4 == 0);
grub_tpm_measure ((unsigned char *)buffer, len, GRUB_BINARY_PCR, "grub_multiboot", filename);
header = find_header (buffer, len);
if (header == 0)
{
grub_free (buffer);
return grub_error (GRUB_ERR_BAD_ARGUMENT, "no multiboot header found");
}
COMPILE_TIME_ASSERT (MULTIBOOT_TAG_ALIGN % 4 == 0);
keep_bs = 0;
for (tag = (struct multiboot_header_tag *) (header + 1);
tag->type != MULTIBOOT_TAG_TYPE_END;
tag = (struct multiboot_header_tag *) ((grub_uint32_t *) tag + ALIGN_UP (tag->size, MULTIBOOT_TAG_ALIGN) / 4))
switch (tag->type)
{
case MULTIBOOT_HEADER_TAG_INFORMATION_REQUEST:
{
unsigned i;
struct multiboot_header_tag_information_request *request_tag
= (struct multiboot_header_tag_information_request *) tag;
if (request_tag->flags & MULTIBOOT_HEADER_TAG_OPTIONAL)
break;
for (i = 0; i < (request_tag->size - sizeof (*request_tag))
/ sizeof (request_tag->requests[0]); i++)
switch (request_tag->requests[i])
{
case MULTIBOOT_TAG_TYPE_END:
case MULTIBOOT_TAG_TYPE_CMDLINE:
case MULTIBOOT_TAG_TYPE_BOOT_LOADER_NAME:
case MULTIBOOT_TAG_TYPE_MODULE:
case MULTIBOOT_TAG_TYPE_BASIC_MEMINFO:
case MULTIBOOT_TAG_TYPE_BOOTDEV:
case MULTIBOOT_TAG_TYPE_MMAP:
case MULTIBOOT_TAG_TYPE_FRAMEBUFFER:
case MULTIBOOT_TAG_TYPE_VBE:
case MULTIBOOT_TAG_TYPE_ELF_SECTIONS:
case MULTIBOOT_TAG_TYPE_APM:
case MULTIBOOT_TAG_TYPE_EFI32:
case MULTIBOOT_TAG_TYPE_EFI64:
case MULTIBOOT_TAG_TYPE_ACPI_OLD:
case MULTIBOOT_TAG_TYPE_ACPI_NEW:
case MULTIBOOT_TAG_TYPE_NETWORK:
case MULTIBOOT_TAG_TYPE_EFI_MMAP:
case MULTIBOOT_TAG_TYPE_EFI_BS:
break;
default:
grub_free (buffer);
return grub_error (GRUB_ERR_UNKNOWN_OS,
"unsupported information tag: 0x%x",
request_tag->requests[i]);
}
break;
}
case MULTIBOOT_HEADER_TAG_ADDRESS:
addr_tag = (struct multiboot_header_tag_address *) tag;
break;
case MULTIBOOT_HEADER_TAG_ENTRY_ADDRESS:
entry_specified = 1;
entry = ((struct multiboot_header_tag_entry_address *) tag)->entry_addr;
break;
case MULTIBOOT_HEADER_TAG_CONSOLE_FLAGS:
if (!(((struct multiboot_header_tag_console_flags *) tag)->console_flags
& MULTIBOOT_CONSOLE_FLAGS_EGA_TEXT_SUPPORTED))
accepted_consoles &= ~GRUB_MULTIBOOT_CONSOLE_EGA_TEXT;
if (((struct multiboot_header_tag_console_flags *) tag)->console_flags
& MULTIBOOT_CONSOLE_FLAGS_CONSOLE_REQUIRED)
console_required = 1;
break;
case MULTIBOOT_HEADER_TAG_FRAMEBUFFER:
fbtag = (struct multiboot_header_tag_framebuffer *) tag;
accepted_consoles |= GRUB_MULTIBOOT_CONSOLE_FRAMEBUFFER;
break;
/* GRUB always page-aligns modules. */
case MULTIBOOT_HEADER_TAG_MODULE_ALIGN:
break;
case MULTIBOOT_HEADER_TAG_EFI_BS:
keep_bs = 1;
break;
default:
if (! (tag->flags & MULTIBOOT_HEADER_TAG_OPTIONAL))
{
grub_free (buffer);
return grub_error (GRUB_ERR_UNKNOWN_OS,
"unsupported tag: 0x%x", tag->type);
}
break;
}
if (addr_tag && !entry_specified)
{
grub_free (buffer);
return grub_error (GRUB_ERR_UNKNOWN_OS,
"load address tag without entry address tag");
}
if (addr_tag)
{
grub_uint64_t load_addr = (addr_tag->load_addr + 1)
? addr_tag->load_addr : (addr_tag->header_addr
- ((char *) header - (char *) buffer));
int offset = ((char *) header - (char *) buffer -
(addr_tag->header_addr - load_addr));
int load_size = ((addr_tag->load_end_addr == 0) ? file->size - offset :
addr_tag->load_end_addr - addr_tag->load_addr);
grub_size_t code_size;
void *source;
grub_relocator_chunk_t ch;
if (addr_tag->bss_end_addr)
code_size = (addr_tag->bss_end_addr - load_addr);
else
code_size = load_size;
err = grub_relocator_alloc_chunk_addr (grub_multiboot_relocator,
&ch, load_addr,
code_size);
if (err)
{
grub_dprintf ("multiboot_loader", "Error loading aout kludge\n");
grub_free (buffer);
return err;
}
source = get_virtual_current_address (ch);
if ((grub_file_seek (file, offset)) == (grub_off_t) -1)
{
grub_free (buffer);
return grub_errno;
}
grub_file_read (file, source, load_size);
if (grub_errno)
{
grub_free (buffer);
return grub_errno;
}
if (addr_tag->bss_end_addr)
grub_memset ((grub_uint8_t *) source + load_size, 0,
addr_tag->bss_end_addr - load_addr - load_size);
}
else
{
err = grub_multiboot_load_elf (file, filename, buffer);
if (err)
{
grub_free (buffer);
return err;
}
}
if (entry_specified)
grub_multiboot_payload_eip = entry;
if (fbtag)
err = grub_multiboot_set_console (GRUB_MULTIBOOT_CONSOLE_FRAMEBUFFER,
accepted_consoles,
fbtag->width, fbtag->height,
fbtag->depth, console_required);
else
err = grub_multiboot_set_console (GRUB_MULTIBOOT_CONSOLE_EGA_TEXT,
accepted_consoles,
0, 0, 0, console_required);
return err;
}
static grub_err_t
grub_cmd_module (grub_command_t cmd __attribute__ ((unused)),
int argc, char *argv[])
{
grub_file_t file = 0;
grub_ssize_t size;
void *module = NULL;
grub_addr_t target;
grub_err_t err;
int nounzip = 0;
grub_uint64_t lowest_addr = 0;
if (argc == 0)
return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
if (grub_strcmp (argv[0], "--nounzip") == 0)
{
argv++;
argc--;
nounzip = 1;
}
if (argc == 0)
return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
if (!grub_multiboot_relocator)
return grub_error (GRUB_ERR_BAD_ARGUMENT,
N_("you need to load the kernel first"));
if (nounzip)
grub_file_filter_disable_compression ();
file = grub_file_open (argv[0]);
if (! file)
return grub_errno;
#ifndef GRUB_USE_MULTIBOOT2
lowest_addr = 0x100000;
if (grub_multiboot_quirks & GRUB_MULTIBOOT_QUIRK_MODULES_AFTER_KERNEL)
lowest_addr = ALIGN_UP (highest_load + 1048576, 4096);
#endif
size = grub_file_size (file);
if (size)
{
grub_relocator_chunk_t ch;
err = grub_relocator_alloc_chunk_align (grub_multiboot_relocator, &ch,
lowest_addr, (0xffffffff - size) + 1,
size, MULTIBOOT_MOD_ALIGN,
GRUB_RELOCATOR_PREFERENCE_NONE, 1);
if (err)
{
grub_file_close (file);
return err;
}
module = get_virtual_current_address (ch);
target = get_physical_target_address (ch);
}
else
{
module = 0;
target = 0;
}
err = grub_multiboot_add_module (target, size, argc - 1, argv + 1);
if (err)
{
grub_file_close (file);
return err;
}
if (size && grub_file_read (file, module, size) != size)
{
grub_file_close (file);
if (!grub_errno)
grub_error (GRUB_ERR_FILE_READ_ERROR, N_("premature end of file %s"),
argv[0]);
return grub_errno;
}
/* Begin TCG Extension */
DEBUG_PRINT( ("measured multiboot module: %s \n", argv[0]) );
grub_TPM_measure_buffer( module, size, TPM_LOADER_MEASUREMENT_PCR );
/* End TCG Extension */
grub_file_close (file);
return GRUB_ERR_NONE;
}
static grub_err_t
grub_linux_boot (void)
{
grub_err_t err = 0;
const char *modevar;
char *tmp;
struct grub_relocator32_state state;
void *real_mode_mem;
struct grub_linux_boot_ctx ctx = {
.real_mode_target = 0
};
grub_size_t mmap_size;
grub_size_t cl_offset;
#ifdef GRUB_MACHINE_IEEE1275
{
const char *bootpath;
grub_ssize_t len;
bootpath = grub_env_get ("root");
if (bootpath)
grub_ieee1275_set_property (grub_ieee1275_chosen,
"bootpath", bootpath,
grub_strlen (bootpath) + 1,
&len);
linux_params.ofw_signature = GRUB_LINUX_OFW_SIGNATURE;
linux_params.ofw_num_items = 1;
linux_params.ofw_cif_handler = (grub_uint32_t) grub_ieee1275_entry_fn;
linux_params.ofw_idt = 0;
}
#endif
modevar = grub_env_get ("gfxpayload");
/* Now all graphical modes are acceptable.
May change in future if we have modes without framebuffer. */
if (modevar && *modevar != 0)
{
tmp = grub_xasprintf ("%s;" DEFAULT_VIDEO_MODE, modevar);
if (! tmp)
return grub_errno;
#if ACCEPTS_PURE_TEXT
err = grub_video_set_mode (tmp, 0, 0);
#else
err = grub_video_set_mode (tmp, GRUB_VIDEO_MODE_TYPE_PURE_TEXT, 0);
#endif
grub_free (tmp);
}
else /* We can't go back to text mode from coreboot fb. */
#ifdef GRUB_MACHINE_COREBOOT
if (grub_video_get_driver_id () == GRUB_VIDEO_DRIVER_COREBOOT)
err = GRUB_ERR_NONE;
else
#endif
{
#if ACCEPTS_PURE_TEXT
err = grub_video_set_mode (DEFAULT_VIDEO_MODE, 0, 0);
#else
err = grub_video_set_mode (DEFAULT_VIDEO_MODE,
GRUB_VIDEO_MODE_TYPE_PURE_TEXT, 0);
#endif
}
if (err)
{
grub_print_error ();
grub_puts_ (N_("Booting in blind mode"));
grub_errno = GRUB_ERR_NONE;
}
if (grub_linux_setup_video (&linux_params))
{
#if defined (GRUB_MACHINE_PCBIOS) || defined (GRUB_MACHINE_COREBOOT) || defined (GRUB_MACHINE_QEMU)
linux_params.have_vga = GRUB_VIDEO_LINUX_TYPE_TEXT;
linux_params.video_mode = 0x3;
#else
linux_params.have_vga = 0;
linux_params.video_mode = 0;
linux_params.video_width = 0;
linux_params.video_height = 0;
#endif
}
#ifndef GRUB_MACHINE_IEEE1275
if (linux_params.have_vga == GRUB_VIDEO_LINUX_TYPE_TEXT)
#endif
{
grub_term_output_t term;
int found = 0;
FOR_ACTIVE_TERM_OUTPUTS(term)
if (grub_strcmp (term->name, "vga_text") == 0
|| grub_strcmp (term->name, "console") == 0
|| grub_strcmp (term->name, "ofconsole") == 0)
{
struct grub_term_coordinate pos = grub_term_getxy (term);
linux_params.video_cursor_x = pos.x;
linux_params.video_cursor_y = pos.y;
linux_params.video_width = grub_term_width (term);
linux_params.video_height = grub_term_height (term);
found = 1;
break;
}
if (!found)
{
linux_params.video_cursor_x = 0;
linux_params.video_cursor_y = 0;
linux_params.video_width = 80;
linux_params.video_height = 25;
}
}
mmap_size = find_mmap_size ();
/* Make sure that each size is aligned to a page boundary. */
cl_offset = ALIGN_UP (mmap_size + sizeof (linux_params), 4096);
if (cl_offset < ((grub_size_t) linux_params.setup_sects << GRUB_DISK_SECTOR_BITS))
cl_offset = ALIGN_UP ((grub_size_t) (linux_params.setup_sects
<< GRUB_DISK_SECTOR_BITS), 4096);
ctx.real_size = ALIGN_UP (cl_offset + maximal_cmdline_size, 4096);
#ifdef GRUB_MACHINE_EFI
efi_mmap_size = find_efi_mmap_size ();
if (efi_mmap_size == 0)
return grub_errno;
#endif
grub_dprintf ("linux", "real_size = %x, mmap_size = %x\n",
(unsigned) ctx.real_size, (unsigned) mmap_size);
#ifdef GRUB_MACHINE_EFI
grub_efi_mmap_iterate (grub_linux_boot_mmap_find, &ctx, 1);
if (! ctx.real_mode_target)
grub_efi_mmap_iterate (grub_linux_boot_mmap_find, &ctx, 0);
#else
grub_mmap_iterate (grub_linux_boot_mmap_find, &ctx);
#endif
grub_dprintf ("linux", "real_mode_target = %lx, real_size = %x, efi_mmap_size = %x\n",
(unsigned long) ctx.real_mode_target,
(unsigned) ctx.real_size,
(unsigned) efi_mmap_size);
if (! ctx.real_mode_target)
return grub_error (GRUB_ERR_OUT_OF_MEMORY, "cannot allocate real mode pages");
{
grub_relocator_chunk_t ch;
err = grub_relocator_alloc_chunk_addr (relocator, &ch,
ctx.real_mode_target,
(ctx.real_size + efi_mmap_size));
if (err)
return err;
real_mode_mem = get_virtual_current_address (ch);
}
efi_mmap_buf = (grub_uint8_t *) real_mode_mem + ctx.real_size;
grub_dprintf ("linux", "real_mode_mem = %p\n",
real_mode_mem);
ctx.params = real_mode_mem;
*ctx.params = linux_params;
ctx.params->cmd_line_ptr = ctx.real_mode_target + cl_offset;
grub_memcpy ((char *) ctx.params + cl_offset, linux_cmdline,
maximal_cmdline_size);
grub_dprintf ("linux", "code32_start = %x\n",
(unsigned) ctx.params->code32_start);
ctx.e820_num = 0;
if (grub_mmap_iterate (grub_linux_boot_mmap_fill, &ctx))
return grub_errno;
ctx.params->mmap_size = ctx.e820_num;
#ifdef GRUB_MACHINE_EFI
{
grub_efi_uintn_t efi_desc_size;
grub_size_t efi_mmap_target;
grub_efi_uint32_t efi_desc_version;
err = grub_efi_finish_boot_services (&efi_mmap_size, efi_mmap_buf, NULL,
&efi_desc_size, &efi_desc_version);
if (err)
return err;
/* Note that no boot services are available from here. */
efi_mmap_target = ctx.real_mode_target
+ ((grub_uint8_t *) efi_mmap_buf - (grub_uint8_t *) real_mode_mem);
/* Pass EFI parameters. */
if (grub_le_to_cpu16 (ctx.params->version) >= 0x0208)
{
ctx.params->v0208.efi_mem_desc_size = efi_desc_size;
ctx.params->v0208.efi_mem_desc_version = efi_desc_version;
ctx.params->v0208.efi_mmap = efi_mmap_target;
ctx.params->v0208.efi_mmap_size = efi_mmap_size;
#ifdef __x86_64__
ctx.params->v0208.efi_mmap_hi = (efi_mmap_target >> 32);
#endif
}
else if (grub_le_to_cpu16 (ctx.params->version) >= 0x0206)
/* Allocate pages for the real mode code and the protected mode code
for linux as well as a memory map buffer. */
static grub_err_t
allocate_pages (grub_size_t prot_size, grub_size_t *align,
grub_size_t min_align, int relocatable,
grub_uint64_t preferred_address)
{
grub_err_t err;
if (prot_size == 0)
prot_size = 1;
prot_size = page_align (prot_size);
/* Initialize the memory pointers with NULL for convenience. */
free_pages ();
relocator = grub_relocator_new ();
if (!relocator)
{
err = grub_errno;
goto fail;
}
/* FIXME: Should request low memory from the heap when this feature is
implemented. */
{
grub_relocator_chunk_t ch;
if (relocatable)
{
err = grub_relocator_alloc_chunk_align (relocator, &ch,
preferred_address,
preferred_address,
prot_size, 1,
GRUB_RELOCATOR_PREFERENCE_LOW,
1);
for (; err && *align + 1 > min_align; (*align)--)
{
grub_errno = GRUB_ERR_NONE;
err = grub_relocator_alloc_chunk_align (relocator, &ch,
0x1000000,
0xffffffff & ~prot_size,
prot_size, 1 << *align,
GRUB_RELOCATOR_PREFERENCE_LOW,
1);
}
if (err)
goto fail;
}
else
err = grub_relocator_alloc_chunk_addr (relocator, &ch,
preferred_address,
prot_size);
if (err)
goto fail;
prot_mode_mem = get_virtual_current_address (ch);
prot_mode_target = get_physical_target_address (ch);
}
grub_dprintf ("linux", "prot_mode_mem = %p, prot_mode_target = %lx, prot_size = %x\n",
prot_mode_mem, (unsigned long) prot_mode_target,
(unsigned) prot_size);
return GRUB_ERR_NONE;
fail:
free_pages ();
return err;
}
static grub_err_t
grub_cmd_ntldr (grub_command_t cmd __attribute__ ((unused)),
int argc, char *argv[])
{
grub_file_t file = 0;
grub_err_t err;
void *bs, *ntldr;
grub_size_t ntldrsize;
grub_device_t dev;
if (argc == 0)
return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
grub_dl_ref (my_mod);
rel = grub_relocator_new ();
if (!rel)
goto fail;
file = grub_file_open (argv[0]);
if (! file)
goto fail;
{
grub_relocator_chunk_t ch;
err = grub_relocator_alloc_chunk_addr (rel, &ch, 0x7C00,
GRUB_DISK_SECTOR_SIZE);
if (err)
goto fail;
bs = get_virtual_current_address (ch);
}
edx = grub_get_root_biosnumber ();
dev = grub_device_open (0);
if (dev && dev->disk)
{
err = grub_disk_read (dev->disk, 0, 0, GRUB_DISK_SECTOR_SIZE, bs);
if (err)
{
grub_device_close (dev);
goto fail;
}
grub_chainloader_patch_bpb (bs, dev, edx);
}
if (dev)
grub_device_close (dev);
ntldrsize = grub_file_size (file);
{
grub_relocator_chunk_t ch;
err = grub_relocator_alloc_chunk_addr (rel, &ch, GRUB_NTLDR_SEGMENT << 4,
ntldrsize);
if (err)
goto fail;
ntldr = get_virtual_current_address (ch);
}
if (grub_file_read (file, ntldr, ntldrsize)
!= (grub_ssize_t) ntldrsize)
goto fail;
grub_loader_set (grub_ntldr_boot, grub_ntldr_unload, 1);
/* Begin TCG Extension */
if (grub_TPM_isAvailable())
grub_TPM_measureFile( argv[0], TPM_LOADED_FILES_PCR );
/* End TCG Extension */
return GRUB_ERR_NONE;
fail:
if (file)
grub_file_close (file);
grub_ntldr_unload ();
return grub_errno;
}
grub_err_t
SUFFIX (grub_freebsd_load_elfmodule_obj) (struct grub_relocator *relocator,
grub_file_t file, int argc,
char *argv[], grub_addr_t *kern_end)
{
Elf_Ehdr e;
Elf_Shdr *s;
char *shdr = 0;
grub_addr_t curload, module;
grub_err_t err;
grub_size_t chunk_size = 0;
void *chunk_src;
err = read_headers (file, &e, &shdr);
if (err)
return err;
curload = module = ALIGN_PAGE (*kern_end);
for (s = (Elf_Shdr *) shdr; s < (Elf_Shdr *) ((char *) shdr
+ e.e_shnum * e.e_shentsize);
s = (Elf_Shdr *) ((char *) s + e.e_shentsize))
{
if (s->sh_size == 0)
continue;
if (s->sh_addralign)
chunk_size = ALIGN_UP (chunk_size + *kern_end, s->sh_addralign)
- *kern_end;
chunk_size += s->sh_size;
}
{
grub_relocator_chunk_t ch;
err = grub_relocator_alloc_chunk_addr (relocator, &ch,
module, chunk_size);
if (err)
return err;
chunk_src = get_virtual_current_address (ch);
}
for (s = (Elf_Shdr *) shdr; s < (Elf_Shdr *) ((char *) shdr
+ e.e_shnum * e.e_shentsize);
s = (Elf_Shdr *) ((char *) s + e.e_shentsize))
{
if (s->sh_size == 0)
continue;
if (s->sh_addralign)
curload = ALIGN_UP (curload, s->sh_addralign);
s->sh_addr = curload;
grub_dprintf ("bsd", "loading section to %x, size %d, align %d\n",
(unsigned) curload, (int) s->sh_size,
(int) s->sh_addralign);
switch (s->sh_type)
{
default:
case SHT_PROGBITS:
err = load (file, (grub_uint8_t *) chunk_src + curload - *kern_end,
s->sh_offset, s->sh_size);
if (err)
return err;
break;
case SHT_NOBITS:
grub_memset ((grub_uint8_t *) chunk_src + curload - *kern_end, 0,
s->sh_size);
break;
}
curload += s->sh_size;
}
*kern_end = ALIGN_PAGE (curload);
err = grub_freebsd_add_meta_module (argv[0], FREEBSD_MODTYPE_ELF_MODULE_OBJ,
argc - 1, argv + 1, module,
curload - module);
if (! err)
err = grub_bsd_add_meta (FREEBSD_MODINFO_METADATA
| FREEBSD_MODINFOMD_ELFHDR,
&e, sizeof (e));
if (! err)
err = grub_bsd_add_meta (FREEBSD_MODINFO_METADATA
| FREEBSD_MODINFOMD_SHDR,
shdr, e.e_shnum * e.e_shentsize);
return err;
}
static grub_err_t
grub_cmd_freedos (grub_command_t cmd __attribute__ ((unused)),
int argc, char *argv[])
{
grub_file_t file = 0;
grub_err_t err;
void *bs, *kernelsys;
grub_size_t kernelsyssize;
grub_device_t dev;
if (argc == 0)
return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
grub_dl_ref (my_mod);
rel = grub_relocator_new ();
if (!rel)
goto fail;
file = grub_file_open (argv[0]);
if (! file)
goto fail;
{
grub_relocator_chunk_t ch;
err = grub_relocator_alloc_chunk_addr (rel, &ch, GRUB_FREEDOS_BPB_ADDR,
GRUB_DISK_SECTOR_SIZE);
if (err)
goto fail;
bs = get_virtual_current_address (ch);
}
ebx = grub_get_root_biosnumber ();
dev = grub_device_open (0);
if (dev && dev->disk)
{
err = grub_disk_read (dev->disk, 0, 0, GRUB_DISK_SECTOR_SIZE, bs);
if (err)
{
grub_device_close (dev);
goto fail;
}
grub_chainloader_patch_bpb (bs, dev, ebx);
}
if (dev)
grub_device_close (dev);
kernelsyssize = grub_file_size (file);
if (kernelsyssize > GRUB_FREEDOS_MAX_SIZE)
{
grub_error (GRUB_ERR_BAD_OS,
N_("the size of `%s' is too large"), argv[0]);
goto fail;
}
{
grub_relocator_chunk_t ch;
err = grub_relocator_alloc_chunk_addr (rel, &ch, GRUB_FREEDOS_ADDR,
kernelsyssize);
if (err)
goto fail;
kernelsys = get_virtual_current_address (ch);
}
if (grub_file_read (file, kernelsys, kernelsyssize)
!= (grub_ssize_t) kernelsyssize)
goto fail;
grub_loader_set (grub_freedos_boot, grub_freedos_unload, 1);
return GRUB_ERR_NONE;
fail:
if (file)
grub_file_close (file);
grub_freedos_unload ();
return grub_errno;
}
static grub_err_t
grub_cmd_ntldr (grub_command_t cmd __attribute__ ((unused)),
int argc, char *argv[])
{
grub_file_t file = 0;
grub_err_t err;
void *bs, *ntldr;
grub_size_t ntldrsize;
grub_device_t dev;
if (argc == 0)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "no file specified");
grub_dl_ref (my_mod);
rel = grub_relocator_new ();
if (!rel)
goto fail;
file = grub_file_open (argv[0]);
if (! file)
goto fail;
{
grub_relocator_chunk_t ch;
err = grub_relocator_alloc_chunk_addr (rel, &ch, 0x7C00,
GRUB_DISK_SECTOR_SIZE);
if (err)
goto fail;
bs = get_virtual_current_address (ch);
}
edx = grub_get_root_biosnumber ();
dev = grub_device_open (0);
if (dev && dev->disk)
{
err = grub_disk_read (dev->disk, 0, 0, GRUB_DISK_SECTOR_SIZE, bs);
if (err)
{
grub_device_close (dev);
goto fail;
}
}
if (dev)
grub_device_close (dev);
ntldrsize = grub_file_size (file);
{
grub_relocator_chunk_t ch;
err = grub_relocator_alloc_chunk_addr (rel, &ch, GRUB_NTLDR_SEGMENT << 4,
ntldrsize);
if (err)
goto fail;
ntldr = get_virtual_current_address (ch);
}
if (grub_file_read (file, ntldr, ntldrsize)
!= (grub_ssize_t) ntldrsize)
goto fail;
grub_loader_set (grub_ntldr_boot, grub_ntldr_unload, 1);
return GRUB_ERR_NONE;
fail:
if (file)
grub_file_close (file);
grub_ntldr_unload ();
return grub_errno;
}
grub_err_t
grub_multiboot_make_mbi (grub_uint32_t *target)
{
struct multiboot_info *mbi;
struct multiboot_mod_list *modlist;
unsigned i;
struct module *cur;
grub_size_t mmap_size;
grub_uint8_t *ptrorig;
grub_addr_t ptrdest;
grub_err_t err;
grub_size_t bufsize;
grub_relocator_chunk_t ch;
bufsize = grub_multiboot_get_mbi_size ();
err = grub_relocator_alloc_chunk_align (grub_multiboot_relocator, &ch,
0x10000, 0xa0000 - bufsize,
bufsize, 4,
GRUB_RELOCATOR_PREFERENCE_NONE, 0);
if (err)
return err;
ptrorig = get_virtual_current_address (ch);
ptrdest = get_physical_target_address (ch);
*target = ptrdest;
mbi = (struct multiboot_info *) ptrorig;
ptrorig += sizeof (*mbi);
ptrdest += sizeof (*mbi);
grub_memset (mbi, 0, sizeof (*mbi));
grub_memcpy (ptrorig, cmdline, cmdline_size);
mbi->flags |= MULTIBOOT_INFO_CMDLINE;
mbi->cmdline = ptrdest;
ptrorig += ALIGN_UP (cmdline_size, 4);
ptrdest += ALIGN_UP (cmdline_size, 4);
grub_memcpy (ptrorig, PACKAGE_STRING, sizeof(PACKAGE_STRING));
mbi->flags |= MULTIBOOT_INFO_BOOT_LOADER_NAME;
mbi->boot_loader_name = ptrdest;
ptrorig += ALIGN_UP (sizeof(PACKAGE_STRING), 4);
ptrdest += ALIGN_UP (sizeof(PACKAGE_STRING), 4);
#ifdef GRUB_MACHINE_PCBIOS
{
struct grub_apm_info info;
if (grub_apm_get_info (&info))
{
struct multiboot_apm_info *mbinfo = (void *) ptrorig;
mbinfo->cseg = info.cseg;
mbinfo->offset = info.offset;
mbinfo->cseg_16 = info.cseg_16;
mbinfo->dseg = info.dseg;
mbinfo->flags = info.flags;
mbinfo->cseg_len = info.cseg_len;
mbinfo->dseg_len = info.dseg_len;
mbinfo->cseg_16_len = info.cseg_16_len;
mbinfo->version = info.version;
ptrorig += ALIGN_UP (sizeof (struct multiboot_apm_info), 4);
ptrdest += ALIGN_UP (sizeof (struct multiboot_apm_info), 4);
}
}
#endif
if (modcnt)
{
mbi->flags |= MULTIBOOT_INFO_MODS;
mbi->mods_addr = ptrdest;
mbi->mods_count = modcnt;
modlist = (struct multiboot_mod_list *) ptrorig;
ptrorig += modcnt * sizeof (struct multiboot_mod_list);
ptrdest += modcnt * sizeof (struct multiboot_mod_list);
for (i = 0, cur = modules; i < modcnt; i++, cur = cur->next)
{
modlist[i].mod_start = cur->start;
modlist[i].mod_end = modlist[i].mod_start + cur->size;
modlist[i].cmdline = ptrdest;
grub_memcpy (ptrorig, cur->cmdline, cur->cmdline_size);
ptrorig += ALIGN_UP (cur->cmdline_size, 4);
ptrdest += ALIGN_UP (cur->cmdline_size, 4);
}
}
else
{
mbi->mods_addr = 0;
mbi->mods_count = 0;
}
mmap_size = grub_get_multiboot_mmap_count ()
* sizeof (struct multiboot_mmap_entry);
grub_fill_multiboot_mmap ((struct multiboot_mmap_entry *) ptrorig);
mbi->mmap_length = mmap_size;
mbi->mmap_addr = ptrdest;
mbi->flags |= MULTIBOOT_INFO_MEM_MAP;
ptrorig += mmap_size;
ptrdest += mmap_size;
/* Convert from bytes to kilobytes. */
mbi->mem_lower = grub_mmap_get_lower () / 1024;
mbi->mem_upper = grub_mmap_get_upper () / 1024;
mbi->flags |= MULTIBOOT_INFO_MEMORY;
if (bootdev_set)
{
mbi->boot_device = bootdev;
mbi->flags |= MULTIBOOT_INFO_BOOTDEV;
}
{
struct grub_net_network_level_interface *net;
FOR_NET_NETWORK_LEVEL_INTERFACES(net)
if (net->dhcp_ack)
{
grub_memcpy (ptrorig, net->dhcp_ack, net->dhcp_acklen);
mbi->drives_addr = ptrdest;
mbi->drives_length = net->dhcp_acklen;
ptrorig += net->dhcp_acklen;
ptrdest += net->dhcp_acklen;
break;
}
}
if (elf_sec_num)
{
mbi->u.elf_sec.addr = ptrdest;
grub_memcpy (ptrorig, elf_sections, elf_sec_entsize * elf_sec_num);
mbi->u.elf_sec.num = elf_sec_num;
mbi->u.elf_sec.size = elf_sec_entsize;
mbi->u.elf_sec.shndx = elf_sec_shstrndx;
mbi->flags |= MULTIBOOT_INFO_ELF_SHDR;
ptrorig += elf_sec_entsize * elf_sec_num;
ptrdest += elf_sec_entsize * elf_sec_num;
}
err = retrieve_video_parameters (mbi, ptrorig, ptrdest);
if (err)
{
grub_print_error ();
grub_errno = GRUB_ERR_NONE;
}
if ((mbi->flags & MULTIBOOT_INFO_FRAMEBUFFER_INFO)
&& mbi->framebuffer_type == MULTIBOOT_FRAMEBUFFER_TYPE_INDEXED)
{
ptrorig += mbi->framebuffer_palette_num_colors
* sizeof (struct multiboot_color);
ptrdest += mbi->framebuffer_palette_num_colors
* sizeof (struct multiboot_color);
}
#if GRUB_MACHINE_HAS_VBE
ptrorig += sizeof (struct grub_vbe_info_block);
ptrdest += sizeof (struct grub_vbe_info_block);
ptrorig += sizeof (struct grub_vbe_mode_info_block);
ptrdest += sizeof (struct grub_vbe_mode_info_block);
#endif
#ifdef GRUB_MACHINE_EFI
err = grub_efi_finish_boot_services (NULL, NULL, NULL, NULL, NULL);
if (err)
return err;
#endif
return GRUB_ERR_NONE;
}
static grub_err_t
grub_cmd_pxechain (grub_command_t cmd __attribute__ ((unused)),
int argc, char *argv[])
{
grub_file_t file = 0;
grub_err_t err;
void *image;
grub_size_t imagesize;
char *fname;
if (argc == 0)
return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
grub_dl_ref (my_mod);
rel = grub_relocator_new ();
if (!rel)
goto fail;
file = grub_file_open (argv[0]);
if (! file)
goto fail;
if (file->device->net && file->device->net->name)
fname = file->device->net->name;
else
{
fname = argv[0];
if (fname[0] == '(')
{
fname = grub_strchr (fname, ')');
if (fname)
fname++;
else
fname = argv[0];
}
}
grub_memset (boot_file, 0, sizeof (boot_file));
grub_strncpy (boot_file, fname, sizeof (boot_file));
grub_memset (server_name, 0, sizeof (server_name));
if (file->device->net && file->device->net->server)
grub_strncpy (server_name, file->device->net->server, sizeof (server_name));
edx = grub_get_root_biosnumber ();
imagesize = grub_file_size (file);
{
grub_relocator_chunk_t ch;
err = grub_relocator_alloc_chunk_addr (rel, &ch, 0x7c00, imagesize);
if (err)
goto fail;
image = get_virtual_current_address (ch);
}
if (grub_file_read (file, image, imagesize) != (grub_ssize_t) imagesize)
goto fail;
grub_loader_set (grub_pxechain_boot, grub_pxechain_unload,
GRUB_LOADER_FLAG_NORETURN | GRUB_LOADER_FLAG_PXE_NOT_UNLOAD);
return GRUB_ERR_NONE;
fail:
if (file)
grub_file_close (file);
grub_pxechain_unload ();
return grub_errno;
}
grub_err_t
grub_multiboot_load (grub_file_t file)
{
char *buffer;
grub_ssize_t len;
struct multiboot_header *header;
grub_err_t err;
buffer = grub_malloc (MULTIBOOT_SEARCH);
if (!buffer)
return grub_errno;
len = grub_file_read (file, buffer, MULTIBOOT_SEARCH);
if (len < 32)
{
grub_free (buffer);
return grub_error (GRUB_ERR_BAD_OS, "file too small");
}
/* Look for the multiboot header in the buffer. The header should
be at least 12 bytes and aligned on a 4-byte boundary. */
for (header = (struct multiboot_header *) buffer;
((char *) header <= buffer + len - 12) || (header = 0);
header = (struct multiboot_header *) ((char *) header + MULTIBOOT_HEADER_ALIGN))
{
if (header->magic == MULTIBOOT_HEADER_MAGIC
&& !(header->magic + header->flags + header->checksum))
break;
}
if (header == 0)
{
grub_free (buffer);
return grub_error (GRUB_ERR_BAD_ARGUMENT, "no multiboot header found");
}
if (header->flags & UNSUPPORTED_FLAGS)
{
grub_free (buffer);
return grub_error (GRUB_ERR_UNKNOWN_OS,
"unsupported flag: 0x%x", header->flags);
}
if (header->flags & MULTIBOOT_AOUT_KLUDGE)
{
int offset = ((char *) header - buffer -
(header->header_addr - header->load_addr));
int load_size = ((header->load_end_addr == 0) ? file->size - offset :
header->load_end_addr - header->load_addr);
grub_size_t code_size;
void *source;
grub_relocator_chunk_t ch;
if (header->bss_end_addr)
code_size = (header->bss_end_addr - header->load_addr);
else
code_size = load_size;
err = grub_relocator_alloc_chunk_addr (grub_multiboot_relocator,
&ch, header->load_addr,
code_size);
if (err)
{
grub_dprintf ("multiboot_loader", "Error loading aout kludge\n");
grub_free (buffer);
return err;
}
source = get_virtual_current_address (ch);
if ((grub_file_seek (file, offset)) == (grub_off_t) -1)
{
grub_free (buffer);
return grub_errno;
}
grub_file_read (file, source, load_size);
if (grub_errno)
{
grub_free (buffer);
return grub_errno;
}
if (header->bss_end_addr)
grub_memset ((grub_uint8_t *) source + load_size, 0,
header->bss_end_addr - header->load_addr - load_size);
grub_multiboot_payload_eip = header->entry_addr;
}
else
{
err = grub_multiboot_load_elf (file, buffer);
if (err)
{
grub_free (buffer);
return err;
}
}
if (header->flags & MULTIBOOT_VIDEO_MODE)
{
switch (header->mode_type)
{
case 1:
err = grub_multiboot_set_console (GRUB_MULTIBOOT_CONSOLE_EGA_TEXT,
GRUB_MULTIBOOT_CONSOLE_EGA_TEXT
| GRUB_MULTIBOOT_CONSOLE_FRAMEBUFFER,
0, 0, 0, 0);
break;
case 0:
err = grub_multiboot_set_console (GRUB_MULTIBOOT_CONSOLE_FRAMEBUFFER,
GRUB_MULTIBOOT_CONSOLE_EGA_TEXT
| GRUB_MULTIBOOT_CONSOLE_FRAMEBUFFER,
header->width, header->height,
header->depth, 0);
break;
default:
err = grub_error (GRUB_ERR_BAD_OS,
"unsupported graphical mode type %d",
header->mode_type);
break;
}
}
else
err = grub_multiboot_set_console (GRUB_MULTIBOOT_CONSOLE_EGA_TEXT,
GRUB_MULTIBOOT_CONSOLE_EGA_TEXT,
0, 0, 0, 0);
return err;
}
static grub_err_t
CONCAT(grub_multiboot_load_elf, XX) (grub_file_t file, const char *filename, void *buffer)
{
Elf_Ehdr *ehdr = (Elf_Ehdr *) buffer;
char *phdr_base;
int i;
if (ehdr->e_ident[EI_MAG0] != ELFMAG0
|| ehdr->e_ident[EI_MAG1] != ELFMAG1
|| ehdr->e_ident[EI_MAG2] != ELFMAG2
|| ehdr->e_ident[EI_MAG3] != ELFMAG3
|| ehdr->e_ident[EI_DATA] != ELFDATA2LSB)
return grub_error(GRUB_ERR_UNKNOWN_OS, N_("invalid arch-independent ELF magic"));
if (ehdr->e_ident[EI_CLASS] != ELFCLASSXX || ehdr->e_machine != E_MACHINE
|| ehdr->e_version != EV_CURRENT)
return grub_error (GRUB_ERR_UNKNOWN_OS, N_("invalid arch-dependent ELF magic"));
if (ehdr->e_type != ET_EXEC && ehdr->e_type != ET_DYN)
return grub_error (GRUB_ERR_UNKNOWN_OS, N_("this ELF file is not of the right type"));
/* FIXME: Should we support program headers at strange locations? */
if (ehdr->e_phoff + ehdr->e_phnum * ehdr->e_phentsize > MULTIBOOT_SEARCH)
return grub_error (GRUB_ERR_BAD_OS, "program header at a too high offset");
phdr_base = (char *) buffer + ehdr->e_phoff;
#define phdr(i) ((Elf_Phdr *) (phdr_base + (i) * ehdr->e_phentsize))
/* Load every loadable segment in memory. */
for (i = 0; i < ehdr->e_phnum; i++)
{
if (phdr(i)->p_type == PT_LOAD)
{
grub_err_t err;
void *source;
grub_dprintf ("multiboot_loader", "segment %d: paddr=0x%lx, memsz=0x%lx, vaddr=0x%lx\n",
i, (long) phdr(i)->p_paddr, (long) phdr(i)->p_memsz, (long) phdr(i)->p_vaddr);
{
grub_relocator_chunk_t ch;
err = grub_relocator_alloc_chunk_addr (grub_multiboot_relocator,
&ch, phdr(i)->p_paddr,
phdr(i)->p_memsz);
if (err)
{
grub_dprintf ("multiboot_loader", "Error loading phdr %d\n", i);
return err;
}
source = get_virtual_current_address (ch);
}
if (phdr(i)->p_filesz != 0)
{
if (grub_file_seek (file, (grub_off_t) phdr(i)->p_offset)
== (grub_off_t) -1)
return grub_errno;
if (grub_file_read (file, source, phdr(i)->p_filesz)
!= (grub_ssize_t) phdr(i)->p_filesz)
{
if (!grub_errno)
grub_error (GRUB_ERR_FILE_READ_ERROR, N_("premature end of file %s"),
filename);
return grub_errno;
}
}
if (phdr(i)->p_filesz < phdr(i)->p_memsz)
grub_memset ((grub_uint8_t *) source + phdr(i)->p_filesz, 0,
phdr(i)->p_memsz - phdr(i)->p_filesz);
}
}
for (i = 0; i < ehdr->e_phnum; i++)
if (phdr(i)->p_vaddr <= ehdr->e_entry
&& phdr(i)->p_vaddr + phdr(i)->p_memsz > ehdr->e_entry)
{
grub_multiboot_payload_eip = (ehdr->e_entry - phdr(i)->p_vaddr)
+ phdr(i)->p_paddr;
#ifdef MULTIBOOT_LOAD_ELF64
# ifdef __mips
/* We still in 32-bit mode. */
if ((ehdr->e_entry - phdr(i)->p_vaddr)
+ phdr(i)->p_paddr < 0xffffffff80000000ULL)
return grub_error (GRUB_ERR_BAD_OS, "invalid entry point for ELF64");
# else
/* We still in 32-bit mode. */
if ((ehdr->e_entry - phdr(i)->p_vaddr)
+ phdr(i)->p_paddr > 0xffffffff)
return grub_error (GRUB_ERR_BAD_OS, "invalid entry point for ELF64");
# endif
#endif
break;
}
if (i == ehdr->e_phnum)
return grub_error (GRUB_ERR_BAD_OS, "entry point isn't in a segment");
#if defined (__i386__) || defined (__x86_64__)
#elif defined (__mips)
grub_multiboot_payload_eip |= 0x80000000;
#else
#error Please complete this
#endif
if (ehdr->e_shnum)
{
grub_uint8_t *shdr, *shdrptr;
shdr = grub_malloc (ehdr->e_shnum * ehdr->e_shentsize);
if (!shdr)
return grub_errno;
if (grub_file_seek (file, ehdr->e_shoff) == (grub_off_t) -1)
return grub_errno;
if (grub_file_read (file, shdr, ehdr->e_shnum * ehdr->e_shentsize)
!= (grub_ssize_t) ehdr->e_shnum * ehdr->e_shentsize)
{
if (!grub_errno)
grub_error (GRUB_ERR_FILE_READ_ERROR, N_("premature end of file %s"),
filename);
return grub_errno;
}
for (shdrptr = shdr, i = 0; i < ehdr->e_shnum;
shdrptr += ehdr->e_shentsize, i++)
{
Elf_Shdr *sh = (Elf_Shdr *) shdrptr;
void *src;
grub_addr_t target;
grub_err_t err;
/* This section is a loaded section,
so we don't care. */
if (sh->sh_addr != 0)
continue;
/* This section is empty, so we don't care. */
if (sh->sh_size == 0)
continue;
{
grub_relocator_chunk_t ch;
err = grub_relocator_alloc_chunk_align (grub_multiboot_relocator,
&ch, 0,
(0xffffffff - sh->sh_size)
+ 1, sh->sh_size,
sh->sh_addralign,
GRUB_RELOCATOR_PREFERENCE_NONE,
0);
if (err)
{
grub_dprintf ("multiboot_loader", "Error loading shdr %d\n", i);
return err;
}
src = get_virtual_current_address (ch);
target = get_physical_target_address (ch);
}
if (grub_file_seek (file, sh->sh_offset) == (grub_off_t) -1)
return grub_errno;
if (grub_file_read (file, src, sh->sh_size)
!= (grub_ssize_t) sh->sh_size)
{
if (!grub_errno)
grub_error (GRUB_ERR_FILE_READ_ERROR, N_("premature end of file %s"),
filename);
return grub_errno;
}
sh->sh_addr = target;
}
grub_multiboot_add_elfsyms (ehdr->e_shnum, ehdr->e_shentsize,
ehdr->e_shstrndx, shdr);
}
#undef phdr
return grub_errno;
}
