Third version of the patch (sent to grub-devel in 2008-01-30)
This commit is contained in:
Robert Millan
parent
c8298743f3
commit
45220d832e
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@ -23,7 +23,7 @@
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reuse rescue mode commands. */
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void grub_rescue_cmd_linux (int argc, char *argv[]);
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void grub_rescue_cmd_initrd (int argc, char *argv[]);
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void grub_rescue_cmd_module (int argc, char *argv[]);
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void grub_rescue_cmd_payload (int argc, char *argv[]);
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void grub_rescue_cmd_relocate (int argc, char *argv[]);
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void grub_rescue_cmd_fpswa (int argc, char *argv[]);
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@ -27,7 +27,7 @@
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#include <grub/dl.h>
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#include <grub/mm.h>
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#include <grub/cache.h>
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/* #include <grub/cpu/linux.h> */
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#include <grub/kernel.h>
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#include <grub/efi/api.h>
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#include <grub/efi/efi.h>
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#include <grub/elf.h>
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@ -59,16 +59,16 @@ struct ia64_boot_param
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grub_uint64_t initrd_size;
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grub_uint64_t domain_start; /* boot domain address. */
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grub_uint64_t domain_size; /* how big is the boot domain */
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grub_uint64_t modules_chain;
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grub_uint64_t modules_nbr;
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grub_uint64_t payloads_chain;
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grub_uint64_t payloads_nbr;
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};
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struct ia64_boot_module
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struct ia64_boot_payload
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{
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grub_uint64_t mod_start;
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grub_uint64_t mod_end;
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grub_uint64_t start;
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grub_uint64_t length;
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/* Module command line */
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/* Payload command line */
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grub_uint64_t cmdline;
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grub_uint64_t next;
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@ -101,7 +101,7 @@ static grub_efi_uintn_t initrd_size;
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static struct ia64_boot_param *boot_param;
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static grub_efi_uintn_t boot_param_pages;
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static struct ia64_boot_module *last_module = NULL;
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static struct ia64_boot_payload *last_payload = NULL;
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/* Can linux kernel be relocated ? */
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#define RELOCATE_OFF 0 /* No. */
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@ -133,14 +133,15 @@ query_fpswa (void)
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bs = grub_efi_system_table->boot_services;
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status = bs->locate_handle (GRUB_EFI_BY_PROTOCOL,
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&fpswa_protocol,
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(void *)&fpswa_protocol,
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NULL, &size, &fpswa_image);
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if (status != GRUB_EFI_SUCCESS)
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{
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grub_printf("Could not locate FPSWA driver\n");
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return;
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}
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status = bs->handle_protocol (fpswa_image, &fpswa_protocol, &fpswa);
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status = bs->handle_protocol (fpswa_image,
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(void *)&fpswa_protocol, (void *)&fpswa);
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if (status != GRUB_EFI_SUCCESS)
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{
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grub_printf ("Fpswa protocol not able find the interface\n");
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@ -204,20 +205,20 @@ free_pages (void)
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if (boot_param)
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{
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struct ia64_boot_module *mod;
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struct ia64_boot_module *next_mod;
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struct ia64_boot_payload *payload;
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struct ia64_boot_payload *next_payload;
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/* Free modules. */
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mod = (struct ia64_boot_module *)boot_param->modules_chain;
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while (mod != 0)
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/* Free payloads. */
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payload = (struct ia64_boot_payload *)boot_param->payloads_chain;
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while (payload != 0)
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{
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next_mod = (struct ia64_boot_module *)mod->next;
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next_payload = (struct ia64_boot_payload *)payload->next;
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grub_efi_free_boot_pages
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(mod->mod_start, page_align (mod->mod_end - mod->mod_start) >> 12);
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grub_efi_free_boot_pages ((grub_efi_physical_address_t)mod, 1);
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(payload->start, page_align (payload->length) >> 12);
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grub_efi_free_boot_pages ((grub_efi_physical_address_t)payload, 1);
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mod = next_mod;
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payload = next_payload;
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}
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/* Free bootparam. */
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@ -446,8 +447,8 @@ grub_load_elf64 (grub_file_t file, void *buffer)
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kernel_mem = allocate_pages (align, kernel_pages, low_addr);
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if (kernel_mem)
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{
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reloc_offset = kernel_mem - low_addr;
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grub_printf (" Relocated at %p (offset=%016llx)\n",
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reloc_offset = (grub_uint64_t)kernel_mem - low_addr;
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grub_printf (" Relocated at %p (offset=%016lx)\n",
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kernel_mem, reloc_offset);
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entry += reloc_offset;
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}
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@ -463,12 +464,12 @@ grub_load_elf64 (grub_file_t file, void *buffer)
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+ i * ehdr->e_phentsize);
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if (phdr->p_type == PT_LOAD)
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{
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grub_printf (" [paddr=%llx load=%llx memsz=%08llx "
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grub_printf (" [paddr=%lx load=%lx memsz=%08lx "
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"off=%lx flags=%x]\n",
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phdr->p_paddr, phdr->p_paddr + reloc_offset,
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phdr->p_memsz, phdr->p_offset, phdr->p_flags);
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if (grub_file_seek (file, phdr->p_offset) == -1)
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if (grub_file_seek (file, phdr->p_offset) == (grub_off_t)-1)
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return grub_error (GRUB_ERR_BAD_OS,
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"invalid offset in program header");
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@ -582,7 +583,7 @@ grub_rescue_cmd_initrd (int argc, char *argv[])
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if (argc == 0)
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{
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grub_error (GRUB_ERR_BAD_ARGUMENT, "No module specified");
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grub_error (GRUB_ERR_BAD_ARGUMENT, "No filename specified");
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goto fail;
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}
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@ -619,12 +620,12 @@ grub_rescue_cmd_initrd (int argc, char *argv[])
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}
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void
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grub_rescue_cmd_module (int argc, char *argv[])
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grub_rescue_cmd_payload (int argc, char *argv[])
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{
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grub_file_t file = 0;
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grub_ssize_t size, len = 0;
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char *module = 0, *cmdline = 0, *p;
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struct ia64_boot_module *mod = NULL;
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char *base = 0, *cmdline = 0, *p;
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struct ia64_boot_payload *payload = NULL;
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int i;
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if (argc == 0)
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@ -636,7 +637,7 @@ grub_rescue_cmd_module (int argc, char *argv[])
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if (!boot_param)
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{
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grub_error (GRUB_ERR_BAD_ARGUMENT,
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"You need to load the multiboot kernel first");
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"You need to load the kernel first");
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goto fail;
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}
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@ -645,47 +646,47 @@ grub_rescue_cmd_module (int argc, char *argv[])
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goto fail;
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size = grub_file_size (file);
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module = grub_efi_allocate_boot_pages (0, page_align (size) >> 12);
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if (! module)
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base = grub_efi_allocate_boot_pages (0, page_align (size) >> 12);
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if (! base)
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goto fail;
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grub_printf ("Module %s [addr=%llx + %lx]\n",
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argv[0], (grub_uint64_t)module, size);
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grub_printf ("Payload %s [addr=%lx + %lx]\n",
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argv[0], (grub_uint64_t)base, size);
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if (grub_file_read (file, module, size) != size)
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if (grub_file_read (file, base, size) != size)
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{
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grub_error (GRUB_ERR_FILE_READ_ERROR, "Couldn't read file");
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goto fail;
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}
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len = sizeof (struct ia64_boot_module);
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len = sizeof (struct ia64_boot_payload);
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for (i = 0; i < argc; i++)
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len += grub_strlen (argv[i]) + 1;
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if (len > 4096)
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{
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grub_error (GRUB_ERR_OUT_OF_RANGE, "module command line too long");
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grub_error (GRUB_ERR_OUT_OF_RANGE, "payload command line too long");
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goto fail;
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}
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mod = grub_efi_allocate_boot_pages (0, 1);
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if (! mod)
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payload = grub_efi_allocate_boot_pages (0, 1);
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if (! payload)
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goto fail;
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p = (char *)(mod + 1);
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p = (char *)(payload + 1);
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mod->mod_start = (grub_uint64_t)module;
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mod->mod_end = (grub_uint64_t)module + size;
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mod->cmdline = (grub_uint64_t)p;
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mod->next = 0;
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payload->start = (grub_uint64_t)base;
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payload->length = size;
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payload->cmdline = (grub_uint64_t)p;
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payload->next = 0;
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if (last_module)
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last_module->next = (grub_uint64_t)mod;
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if (last_payload)
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last_payload->next = (grub_uint64_t)payload;
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else
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{
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last_module = mod;
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boot_param->modules_chain = (grub_uint64_t)mod;
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last_payload = payload;
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boot_param->payloads_chain = (grub_uint64_t)payload;
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}
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boot_param->modules_nbr++;
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boot_param->payloads_nbr++;
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/* Copy command line. */
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for (i = 0; i < argc; i++)
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@ -704,7 +705,7 @@ grub_rescue_cmd_module (int argc, char *argv[])
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if (grub_errno != GRUB_ERR_NONE)
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{
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grub_free (module);
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grub_free (base);
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grub_free (cmdline);
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}
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}
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@ -761,8 +762,8 @@ GRUB_MOD_INIT(linux)
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grub_rescue_register_command ("initrd",
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grub_rescue_cmd_initrd,
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"load initrd");
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grub_rescue_register_command ("module", grub_rescue_cmd_module,
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"load a multiboot module");
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grub_rescue_register_command ("payload", grub_rescue_cmd_payload,
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"load an additional file");
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grub_rescue_register_command ("relocate", grub_rescue_cmd_relocate,
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"set relocate feature");
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grub_rescue_register_command ("fpswa", grub_rescue_cmd_fpswa,
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@ -774,7 +775,7 @@ GRUB_MOD_FINI(linux)
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{
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grub_rescue_unregister_command ("linux");
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grub_rescue_unregister_command ("initrd");
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grub_rescue_unregister_command ("module");
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grub_rescue_unregister_command ("payload");
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grub_rescue_unregister_command ("relocate");
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grub_rescue_unregister_command ("fpswa");
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}
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@ -40,10 +40,10 @@ grub_normal_initrd_command (struct grub_arg_list *state __attribute__ ((unused))
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}
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static grub_err_t
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grub_normal_cmd_module (struct grub_arg_list *state __attribute__ ((unused)),
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grub_normal_cmd_payload (struct grub_arg_list *state __attribute__ ((unused)),
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int argc, char **args)
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{
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grub_rescue_cmd_module (argc, args);
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grub_rescue_cmd_payload (argc, args);
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return grub_errno;
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}
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@ -79,10 +79,10 @@ GRUB_MOD_INIT(linux_normal)
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"Load an initrd.", 0);
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grub_register_command
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("module", grub_normal_cmd_module,
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("payload", grub_normal_cmd_payload,
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GRUB_COMMAND_FLAG_BOTH | GRUB_COMMAND_FLAG_NO_ARG_PARSE,
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"module FILE [ARGS...]",
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"Load a Multiboot module.", 0);
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"payload FILE [ARGS...]",
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"Load an additional file.", 0);
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grub_register_command
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("relocate", grub_normal_cmd_relocate,
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@ -101,7 +101,7 @@ GRUB_MOD_FINI(linux_normal)
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{
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grub_unregister_command ("linux");
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grub_unregister_command ("initrd");
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grub_unregister_command ("module");
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grub_unregister_command ("payload");
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grub_unregister_command ("relocate");
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grub_unregister_command ("fpswa");
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}
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@ -70,7 +70,7 @@ typedef Elf64_Sym Elf_Sym;
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#define ELF_R_SYM(r) ELF64_R_SYM(r)
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#endif
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#ifdef __ia64__
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#ifdef ELF2PE_IA64
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#define ELF_ETYPE ET_DYN
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#else
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#define ELF_ETYPE ET_EXEC
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@ -99,7 +99,7 @@ uint32_t text_offset;
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uint32_t data_offset;
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uint32_t reloc_offset;
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#ifdef __ia64__
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#ifdef ELF2PE_IA64
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uint32_t coff_entry_descr_offset;
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uint32_t coff_entry_descr_func;
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uint64_t plt_base;
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@ -160,7 +160,7 @@ is_text_shdr (Elf_Shdr *shdr)
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if (shdr->sh_type != SHT_PROGBITS) {
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return 0;
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}
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#ifdef __ia64__
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#ifdef ELF2PE_IA64
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return (shdr->sh_flags & (SHF_EXECINSTR | SHF_ALLOC))
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== (SHF_ALLOC | SHF_EXECINSTR);
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#else
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@ -229,7 +229,7 @@ scan_sections (void)
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}
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coff_sections_offset[i] = coff_offset;
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coff_offset += shdr->sh_size;
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#ifdef __ia64__
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#ifdef ELF2PE_IA64
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if (coff_sections_offset[i] != shdr->sh_addr) {
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fprintf (stderr,
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"Section %s: Coff offset (%x) != Elf offset (%lx)",
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@ -244,7 +244,7 @@ scan_sections (void)
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shdr_dynamic = shdr;
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}
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}
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#ifdef __ia64__
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#ifdef ELF2PE_IA64
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/* 16 bytes are reserved (by the ld script) for the entry point descriptor.
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*/
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coff_entry_descr_offset = coff_offset - 16;
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@ -259,7 +259,7 @@ scan_sections (void)
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if (is_data_shdr (shdr)) {
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coff_sections_offset[i] = coff_offset;
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coff_offset += shdr->sh_size;
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#ifdef __ia64__
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#ifdef ELF2PE_IA64
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if (coff_sections_offset[i] != shdr->sh_addr) {
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fprintf (stderr,
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"Section %s: Coff offset (%x) != Elf offset (%lx)",
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@ -307,7 +307,7 @@ scan_sections (void)
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nt_hdr->optional_header.code_size = data_offset - text_offset;
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nt_hdr->optional_header.data_size = reloc_offset - data_offset;
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nt_hdr->optional_header.bss_size = 0;
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#ifdef __ia64__
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#ifdef ELF2PE_IA64
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nt_hdr->optional_header.entry_addr = coff_entry_descr_offset;
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coff_entry_descr_func = coff_entry;
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#else
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@ -335,7 +335,7 @@ scan_sections (void)
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PE32_SCN_CNT_INITIALIZED_DATA
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| PE32_SCN_MEM_WRITE
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| PE32_SCN_MEM_READ);
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#ifdef __ia64__
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#ifdef ELF2PE_IA64
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if (shdr_dynamic != NULL)
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{
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Elf64_Dyn *dyn = (Elf64_Dyn*)((uint8_t*)ehdr + shdr_dynamic->sh_offset);
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@ -639,7 +639,7 @@ write_relocations(void)
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}
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}
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#ifdef __ia64__
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#ifdef ELF2PE_IA64
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coff_add_fixup (coff_entry_descr_offset, PE32_REL_BASED_DIR64);
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coff_add_fixup (coff_entry_descr_offset + 8, PE32_REL_BASED_DIR64);
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#endif
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@ -719,7 +719,7 @@ convert_elf (uint8_t **file_buffer, unsigned int *file_length)
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if (write_sections (is_text_shdr) != 0)
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return -3;
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#ifdef __ia64__
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#ifdef ELF2PE_IA64
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*(uint64_t*)(coff_file + coff_entry_descr_offset) = coff_entry_descr_func;
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*(uint64_t*)(coff_file + coff_entry_descr_offset + 8) = plt_base;
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#endif
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