2007-06-21 Robert Millan <rmh@aybabtu.com>
* include/grub/i386/pc/kernel.h: Define GRUB_KERNEL_MACHINE_DATA_END to indicate end of data section in kernel image. * include/grub/i386/efi/kernel.h: Define GRUB_KERNEL_MACHINE_PREFIX and GRUB_KERNEL_MACHINE_DATA_END. * kern/i386/pc/startup.S: Do not initialize grub_prefix, only reserve space for it. * kern/i386/efi/startup.S: Likewise. * util/i386/pc/grub-mkimage.c: Initialize grub_prefix to /boot/grub during image generation. Implement --prefix option to override this patch. * util/i386/efi/grub-mkimage.c: Likewise. * util/update-grub_lib.in (convert_system_path_to_grub_path): Split code to make path relative to its root into a separate function. * util/i386/pc/grub-install.in: Use newly provided make_system_path_relative_to_its_root() to convert ${grubdir}, then pass the result to grub-install --prefix.
This commit is contained in:
parent
baa574b487
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7 changed files with 73 additions and 14 deletions
23
ChangeLog
23
ChangeLog
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@ -1,3 +1,26 @@
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2007-06-21 Robert Millan <rmh@aybabtu.com>
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* include/grub/i386/pc/kernel.h: Define GRUB_KERNEL_MACHINE_DATA_END to
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indicate end of data section in kernel image.
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* include/grub/i386/efi/kernel.h: Define GRUB_KERNEL_MACHINE_PREFIX and
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GRUB_KERNEL_MACHINE_DATA_END.
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* kern/i386/pc/startup.S: Do not initialize grub_prefix, only reserve
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space for it.
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* kern/i386/efi/startup.S: Likewise.
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* util/i386/pc/grub-mkimage.c: Initialize grub_prefix to /boot/grub
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during image generation. Implement --prefix option to override this
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patch.
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* util/i386/efi/grub-mkimage.c: Likewise.
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* util/update-grub_lib.in (convert_system_path_to_grub_path): Split
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code to make path relative to its root into a separate function.
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* util/i386/pc/grub-install.in: Use newly provided
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make_system_path_relative_to_its_root() to convert ${grubdir}, then
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pass the result to grub-install --prefix.
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2007-06-13 Robert Millan <rmh@aybabtu.com>
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* include/grub/util/misc.h: Define DEFAULT_DIRECTORY and
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@ -24,5 +24,11 @@
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configuration file are located. */
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extern char grub_prefix[];
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/* The offset of GRUB_PREFIX. */
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#define GRUB_KERNEL_MACHINE_PREFIX 0x8
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/* End of the data section. */
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#define GRUB_KERNEL_MACHINE_DATA_END 0x50
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#endif /* ! GRUB_MACHINE_KERNEL_HEADER */
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@ -38,6 +38,9 @@
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/* The offset of GRUB_PREFIX. */
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#define GRUB_KERNEL_MACHINE_PREFIX 0x1c
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/* End of the data section. */
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#define GRUB_KERNEL_MACHINE_DATA_END 0x50
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/* The size of the first region which won't be compressed. */
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#define GRUB_KERNEL_MACHINE_RAW_SIZE 0x4A0
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@ -45,7 +45,7 @@ _start:
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. = EXT_C(start) + 0x8
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VARIABLE(grub_prefix)
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.string "/boot/grub"
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/* to be filled by grub-mkimage */
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/*
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* Leave some breathing room for the prefix.
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@ -96,7 +96,7 @@ VARIABLE(grub_install_dos_part)
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VARIABLE(grub_install_bsd_part)
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.long 0xFFFFFFFF
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VARIABLE(grub_prefix)
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.string "/boot/grub"
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/* to be filled by grub-mkimage */
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/*
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* Leave some breathing room for the prefix.
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@ -30,6 +30,7 @@
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#include <grub/util/resolve.h>
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#include <grub/kernel.h>
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#include <grub/efi/pe32.h>
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#include <grub/machine/kernel.h>
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static const grub_uint8_t stub[] = GRUB_PE32_MSDOS_STUB;
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@ -48,7 +49,7 @@ align_pe32_section (Elf32_Addr addr)
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/* Read the whole kernel image. Return the pointer to a read image,
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and store the size in bytes in *SIZE. */
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static char *
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read_kernel_module (const char *dir, size_t *size)
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read_kernel_module (const char *dir, char *prefix, size_t *size)
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{
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char *kernel_image;
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char *kernel_path;
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kernel_image = grub_util_read_image (kernel_path);
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free (kernel_path);
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if (GRUB_KERNEL_MACHINE_PREFIX + strlen (prefix) + 1 > GRUB_KERNEL_MACHINE_DATA_END)
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grub_util_error ("prefix too long");
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strcpy (kernel_image + 0x34 + GRUB_KERNEL_MACHINE_PREFIX, prefix);
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return kernel_image;
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}
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@ -838,7 +843,7 @@ make_header (FILE *out, Elf32_Addr text_address, Elf32_Addr data_address,
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/* Convert an ELF relocatable object into an EFI Application (PE32). */
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void
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convert_elf (const char *dir, FILE *out, char *mods[])
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convert_elf (const char *dir, char *prefix, FILE *out, char *mods[])
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{
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char *kernel_image;
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size_t kernel_size;
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Elf32_Addr end_address;
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/* Get the kernel image and check the format. */
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kernel_image = read_kernel_module (dir, &kernel_size);
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kernel_image = read_kernel_module (dir, prefix, &kernel_size);
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e = (Elf32_Ehdr *) kernel_image;
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if (! check_elf_header (e, kernel_size))
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grub_util_error ("invalid ELF header");
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static struct option options[] =
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{
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{"directory", required_argument, 0, 'd'},
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{"prefix", required_argument, 0, 'p'},
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{"output", required_argument, 0, 'o'},
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{"help", no_argument, 0, 'h'},
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{"version", no_argument, 0, 'V'},
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Make a bootable image of GRUB.\n\
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\n\
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-d, --directory=DIR use images and modules under DIR [default=%s]\n\
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-p, --prefix=DIR set grub_prefix directory [default=%s]\n\
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-o, --output=FILE output a generated image to FILE\n\
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-h, --help display this message and exit\n\
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-V, --version print version information and exit\n\
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-v, --verbose print verbose messages\n\
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\n\
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Report bugs to <%s>.\n\
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", GRUB_LIBDIR, PACKAGE_BUGREPORT);
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", GRUB_LIBDIR, DEFAULT_DIRECTORY, PACKAGE_BUGREPORT);
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exit (status);
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}
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FILE *fp;
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char *output = NULL;
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char *dir = NULL;
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char *prefix = NULL;
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progname = "grub-mkimage";
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while (1)
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{
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int c = getopt_long (argc, argv, "d:o:hVv", options, 0);
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int c = getopt_long (argc, argv, "d:p:o:hVv", options, 0);
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if (c == -1)
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break;
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free (output);
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output = xstrdup (optarg);
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break;
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case 'p':
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if (prefix)
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free (prefix);
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prefix = xstrdup (optarg);
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break;
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case 'V':
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printf ("grub-mkimage (%s) %s\n", PACKAGE_NAME, PACKAGE_VERSION);
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return 0;
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if (! fp)
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grub_util_error ("cannot open %s", output);
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convert_elf (dir ? : GRUB_LIBDIR, fp, argv + optind);
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convert_elf (dir ? : GRUB_LIBDIR, prefix ? : DEFAULT_DIRECTORY, fp, argv + optind);
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fclose (fp);
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}
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static void
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generate_image (const char *dir, FILE *out, char *mods[])
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generate_image (const char *dir, char *prefix, FILE *out, char *mods[])
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{
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grub_addr_t module_addr = 0;
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char *kernel_img, *boot_img, *core_img;
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kernel_img = xmalloc (kernel_size + total_module_size);
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grub_util_load_image (kernel_path, kernel_img);
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if (GRUB_KERNEL_MACHINE_PREFIX + strlen (prefix) + 1 > GRUB_KERNEL_MACHINE_DATA_END)
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grub_util_error ("prefix too long");
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strcpy (kernel_img + GRUB_KERNEL_MACHINE_PREFIX, prefix);
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/* Fill in the grub_module_info structure. */
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modinfo = (struct grub_module_info *) (kernel_img + kernel_size);
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modinfo->magic = GRUB_MODULE_MAGIC;
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static struct option options[] =
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{
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{"directory", required_argument, 0, 'd'},
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{"prefix", required_argument, 0, 'p'},
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{"output", required_argument, 0, 'o'},
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{"help", no_argument, 0, 'h'},
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{"version", no_argument, 0, 'V'},
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Make a bootable image of GRUB.\n\
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\n\
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-d, --directory=DIR use images and modules under DIR [default=%s]\n\
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-p, --prefix=DIR set grub_prefix directory [default=%s]\n\
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-o, --output=FILE output a generated image to FILE [default=stdout]\n\
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-h, --help display this message and exit\n\
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-V, --version print version information and exit\n\
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-v, --verbose print verbose messages\n\
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\n\
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Report bugs to <%s>.\n\
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", GRUB_LIBDIR, PACKAGE_BUGREPORT);
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", GRUB_LIBDIR, DEFAULT_DIRECTORY, PACKAGE_BUGREPORT);
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exit (status);
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}
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int
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main (int argc, char *argv[])
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{
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char *output = 0;
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char *dir = 0;
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char *output = NULL;
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char *dir = NULL;
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char *prefix = NULL;
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FILE *fp = stdout;
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progname = "grub-mkimage";
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while (1)
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{
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int c = getopt_long (argc, argv, "d:o:hVv", options, 0);
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int c = getopt_long (argc, argv, "d:p:o:hVv", options, 0);
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if (c == -1)
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break;
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usage (0);
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break;
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case 'p':
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if (prefix)
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free (prefix);
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prefix = xstrdup (optarg);
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break;
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case 'V':
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printf ("grub-mkimage (%s) %s\n", PACKAGE_NAME, PACKAGE_VERSION);
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return 0;
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grub_util_error ("cannot open %s", output);
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}
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generate_image (dir ? : GRUB_LIBDIR, fp, argv + optind);
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generate_image (dir ? : GRUB_LIBDIR, prefix ? : DEFAULT_DIRECTORY, fp, argv + optind);
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fclose (fp);
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