Compress grub_prefix.
* grub-core/boot/i386/pc/lnxboot.S: Use GRUB_KERNEL_I386_PC_MULTIBOOT_SIGNATURE. * grub-core/kern/i386/pc/startup.S: Move grub_prefix to compressed part. * include/grub/offsets.h: Rename GRUB_MACHINE_DATA_END to GRUB_MACHINE_PREFIX_END. All users updated. (GRUB_KERNEL_I386_PC_PREFIX): Set to GRUB_KERNEL_I386_PC_RAW_SIZE. (GRUB_KERNEL_I386_PC_PREFIX_END): Set to GRUB_KERNEL_I386_PC_PREFIX + 0x40. (GRUB_KERNEL_I386_PC_RAW_SIZE): Decrease. * util/grub-mkimage.c (image_target_desc): Change data_end to prefix_end. All users updated.
This commit is contained in:
parent
a7c00cdb94
commit
c8e7bf5ff7
11 changed files with 67 additions and 46 deletions
16
ChangeLog
16
ChangeLog
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@ -1,3 +1,19 @@
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2010-09-03 Vladimir Serbinenko <phcoder@gmail.com>
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Compress grub_prefix.
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* grub-core/boot/i386/pc/lnxboot.S: Use
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GRUB_KERNEL_I386_PC_MULTIBOOT_SIGNATURE.
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* grub-core/kern/i386/pc/startup.S: Move grub_prefix to compressed part.
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* include/grub/offsets.h: Rename GRUB_MACHINE_DATA_END to
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GRUB_MACHINE_PREFIX_END. All users updated.
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(GRUB_KERNEL_I386_PC_PREFIX): Set to GRUB_KERNEL_I386_PC_RAW_SIZE.
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(GRUB_KERNEL_I386_PC_PREFIX_END): Set to GRUB_KERNEL_I386_PC_PREFIX
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+ 0x40.
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(GRUB_KERNEL_I386_PC_RAW_SIZE): Decrease.
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* util/grub-mkimage.c (image_target_desc): Change data_end to
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prefix_end. All users updated.
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2010-09-03 Vladimir Serbinenko <phcoder@gmail.com>
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* grub-core/loader/i386/bsd.c (grub_freebsd_boot): Set %ebp to sane
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@ -185,7 +185,7 @@ real_code_2:
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call LOCAL(move_memory)
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/* Check for multiboot signature. */
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cmpl $MULTIBOOT_HEADER_MAGIC, %ss:(DATA_ADDR + GRUB_KERNEL_MACHINE_DATA_END)
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cmpl $MULTIBOOT_HEADER_MAGIC, %ss:(DATA_ADDR + GRUB_KERNEL_I386_PC_MULTIBOOT_SIGNATURE)
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jz 1f
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movl (ramdisk_image - start), %esi
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@ -51,7 +51,7 @@ VARIABLE(grub_prefix)
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* Leave some breathing room for the prefix.
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*/
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. = _start + GRUB_KERNEL_MACHINE_DATA_END
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. = _start + GRUB_KERNEL_MACHINE_PREFIX_END
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/*
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* Support for booting GRUB from a Multiboot boot loader (e.g. GRUB itself).
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@ -51,7 +51,7 @@ VARIABLE(grub_prefix)
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* Leave some breathing room for the prefix.
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*/
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. = _start + GRUB_KERNEL_MACHINE_DATA_END
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. = _start + GRUB_KERNEL_MACHINE_PREFIX_END
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codestart:
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movl %eax, EXT_C(grub_ieee1275_entry_fn)
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@ -100,14 +100,6 @@ VARIABLE(grub_install_dos_part)
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.long 0xFFFFFFFF
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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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/* 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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*/
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. = _start + GRUB_KERNEL_MACHINE_DATA_END
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#ifdef APPLE_CC
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bss_start:
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@ -450,6 +442,16 @@ gate_a20_check_state:
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*/
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. = _start + GRUB_KERNEL_MACHINE_RAW_SIZE
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. = _start + GRUB_KERNEL_MACHINE_PREFIX
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VARIABLE(grub_prefix)
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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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*/
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. = _start + GRUB_KERNEL_MACHINE_PREFIX_END
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/*
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* grub_exit()
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@ -39,7 +39,7 @@ VARIABLE(grub_prefix)
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* Leave some breathing room for the prefix.
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*/
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. = _start + GRUB_KERNEL_MACHINE_DATA_END
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. = _start + GRUB_KERNEL_MACHINE_PREFIX_END
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codestart:
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/* Relocate to low memory. First we figure out our location.
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@ -154,7 +154,7 @@ VARIABLE(grub_prefix)
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* Leave some breathing room for the prefix.
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*/
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. = _start + GRUB_KERNEL_MACHINE_DATA_END
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. = _start + GRUB_KERNEL_MACHINE_PREFIX_END
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#ifdef GRUB_MACHINE_MIPS_YEELOONG
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VARIABLE (grub_arch_busclock)
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.long 0
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@ -39,7 +39,7 @@ VARIABLE(grub_prefix)
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* Leave some breathing room for the prefix.
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*/
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. = _start + GRUB_KERNEL_MACHINE_DATA_END
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. = _start + GRUB_KERNEL_MACHINE_PREFIX_END
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codestart:
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li 2, 0
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@ -42,7 +42,7 @@ VARIABLE(grub_prefix)
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* Leave some breathing room for the prefix.
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*/
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. = EXT_C(_start) + GRUB_KERNEL_MACHINE_DATA_END
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. = EXT_C(_start) + GRUB_KERNEL_MACHINE_PREFIX_END
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codestart:
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/* Copy the modules past the end of the kernel image.
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@ -34,14 +34,17 @@
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/* The offset of GRUB_INSTALL_BSD_PART. */
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#define GRUB_KERNEL_I386_PC_INSTALL_BSD_PART 0x18
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/* The offset of GRUB_PREFIX. */
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#define GRUB_KERNEL_I386_PC_PREFIX 0x1c
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/* End of the data section. */
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#define GRUB_KERNEL_I386_PC_DATA_END 0x5c
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/* The offset of multiboot signature. */
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#define GRUB_KERNEL_I386_PC_MULTIBOOT_SIGNATURE 0x1c
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/* The size of the first region which won't be compressed. */
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#define GRUB_KERNEL_I386_PC_RAW_SIZE (GRUB_KERNEL_I386_PC_DATA_END + 0x5F0)
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#define GRUB_KERNEL_I386_PC_RAW_SIZE 0x5D8
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/* The offset of GRUB_PREFIX. */
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#define GRUB_KERNEL_I386_PC_PREFIX GRUB_KERNEL_I386_PC_RAW_SIZE
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/* End of the data section. */
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#define GRUB_KERNEL_I386_PC_PREFIX_END (GRUB_KERNEL_I386_PC_PREFIX + 0x40)
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/* The segment where the kernel is loaded. */
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#define GRUB_BOOT_I386_PC_KERNEL_SEG 0x800
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@ -65,7 +68,7 @@
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#define GRUB_KERNEL_I386_QEMU_PREFIX 0x10
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/* End of the data section. */
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#define GRUB_KERNEL_I386_QEMU_DATA_END 0x50
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#define GRUB_KERNEL_I386_QEMU_PREFIX_END 0x50
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#define GRUB_KERNEL_I386_QEMU_LINK_ADDR 0x8200
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#define GRUB_KERNEL_SPARC64_IEEE1275_PREFIX 0x14
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/* End of the data section. */
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#define GRUB_KERNEL_SPARC64_IEEE1275_DATA_END 0x114
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#define GRUB_KERNEL_SPARC64_IEEE1275_PREFIX_END 0x114
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#define GRUB_BOOT_SPARC64_IEEE1275_LIST_SIZE 12
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#define GRUB_KERNEL_SPARC64_IEEE1275_LINK_ADDR 0x4400
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#define GRUB_KERNEL_POWERPC_IEEE1275_PREFIX 0x4
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#define GRUB_KERNEL_POWERPC_IEEE1275_DATA_END 0x44
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#define GRUB_KERNEL_POWERPC_IEEE1275_PREFIX_END 0x44
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#define GRUB_KERNEL_POWERPC_IEEE1275_LINK_ALIGN 4
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#define GRUB_KERNEL_POWERPC_IEEE1275_LINK_ADDR 0x200000
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#define GRUB_KERNEL_MIPS_YEELOONG_KERNEL_IMAGE_SIZE 0x10
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#define GRUB_KERNEL_MIPS_YEELOONG_PREFIX GRUB_KERNEL_MIPS_YEELOONG_RAW_SIZE
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#define GRUB_KERNEL_MIPS_YEELOONG_DATA_END GRUB_KERNEL_MIPS_YEELOONG_RAW_SIZE + 0x48
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#define GRUB_KERNEL_MIPS_YEELOONG_PREFIX_END GRUB_KERNEL_MIPS_YEELOONG_RAW_SIZE + 0x48
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/* The offset of GRUB_PREFIX. */
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#define GRUB_KERNEL_I386_EFI_PREFIX 0x8
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/* End of the data section. */
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#define GRUB_KERNEL_I386_EFI_DATA_END 0x50
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#define GRUB_KERNEL_I386_EFI_PREFIX_END 0x50
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/* The offset of GRUB_PREFIX. */
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#define GRUB_KERNEL_X86_64_EFI_PREFIX 0x8
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/* End of the data section. */
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#define GRUB_KERNEL_X86_64_EFI_DATA_END 0x50
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#define GRUB_KERNEL_X86_64_EFI_PREFIX_END 0x50
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#define GRUB_KERNEL_I386_COREBOOT_PREFIX 0x2
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#define GRUB_KERNEL_I386_COREBOOT_DATA_END 0x42
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#define GRUB_KERNEL_I386_COREBOOT_PREFIX_END 0x42
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#define GRUB_KERNEL_I386_COREBOOT_LINK_ADDR 0x8200
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#define GRUB_KERNEL_I386_MULTIBOOT_PREFIX GRUB_KERNEL_I386_COREBOOT_PREFIX
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#define GRUB_KERNEL_I386_MULTIBOOT_DATA_END GRUB_KERNEL_I386_COREBOOT_DATA_END
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#define GRUB_KERNEL_I386_MULTIBOOT_PREFIX_END GRUB_KERNEL_I386_COREBOOT_PREFIX_END
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#define GRUB_KERNEL_I386_IEEE1275_PREFIX 0x2
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#define GRUB_KERNEL_I386_IEEE1275_DATA_END 0x42
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#define GRUB_KERNEL_I386_IEEE1275_PREFIX_END 0x42
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#define GRUB_KERNEL_I386_IEEE1275_LINK_ADDR 0x10000
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#define GRUB_KERNEL_I386_IEEE1275_MOD_ALIGN 0x1000
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#define GRUB_KERNEL_MACHINE_COMPRESSED_SIZE GRUB_OFFSETS_CONCAT (GRUB_KERNEL_, MACHINE, _COMPRESSED_SIZE)
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#define GRUB_KERNEL_MACHINE_PREFIX GRUB_OFFSETS_CONCAT (GRUB_KERNEL_, MACHINE, _PREFIX)
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#define GRUB_KERNEL_MACHINE_DATA_END GRUB_OFFSETS_CONCAT (GRUB_KERNEL_, MACHINE, _DATA_END)
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#define GRUB_KERNEL_MACHINE_PREFIX_END GRUB_OFFSETS_CONCAT (GRUB_KERNEL_, MACHINE, _PREFIX_END)
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#define GRUB_BOOT_MACHINE_KERNEL_SEG GRUB_OFFSETS_CONCAT (GRUB_BOOT_, MACHINE, _KERNEL_SEG)
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#define GRUB_MEMORY_MACHINE_UPPER GRUB_OFFSETS_CONCAT (GRUB_MEMORY_, MACHINE, _UPPER)
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#define GRUB_KERNEL_MACHINE_RAW_SIZE GRUB_OFFSETS_CONCAT (GRUB_KERNEL_, MACHINE, _RAW_SIZE)
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@ -63,7 +63,7 @@ struct image_target_desc
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PLATFORM_FLAGS_LZMA = 1
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} flags;
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unsigned prefix;
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unsigned data_end;
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unsigned prefix_end;
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unsigned raw_size;
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unsigned total_module_size;
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unsigned kernel_image_size;
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.id = IMAGE_COREBOOT,
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.flags = PLATFORM_FLAGS_NONE,
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.prefix = GRUB_KERNEL_I386_COREBOOT_PREFIX,
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.data_end = GRUB_KERNEL_I386_COREBOOT_DATA_END,
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.prefix_end = GRUB_KERNEL_I386_COREBOOT_PREFIX_END,
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.raw_size = 0,
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.total_module_size = TARGET_NO_FIELD,
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.kernel_image_size = TARGET_NO_FIELD,
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.id = IMAGE_COREBOOT,
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.flags = PLATFORM_FLAGS_NONE,
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.prefix = GRUB_KERNEL_I386_MULTIBOOT_PREFIX,
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.data_end = GRUB_KERNEL_I386_MULTIBOOT_DATA_END,
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.prefix_end = GRUB_KERNEL_I386_MULTIBOOT_PREFIX_END,
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.raw_size = 0,
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.total_module_size = TARGET_NO_FIELD,
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.kernel_image_size = TARGET_NO_FIELD,
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@ -130,7 +130,7 @@ struct image_target_desc image_targets[] =
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.id = IMAGE_I386_PC,
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.flags = PLATFORM_FLAGS_LZMA,
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.prefix = GRUB_KERNEL_I386_PC_PREFIX,
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.data_end = GRUB_KERNEL_I386_PC_DATA_END,
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.prefix_end = GRUB_KERNEL_I386_PC_PREFIX_END,
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.raw_size = GRUB_KERNEL_I386_PC_RAW_SIZE,
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.total_module_size = GRUB_KERNEL_I386_PC_TOTAL_MODULE_SIZE,
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.kernel_image_size = GRUB_KERNEL_I386_PC_KERNEL_IMAGE_SIZE,
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@ -148,7 +148,7 @@ struct image_target_desc image_targets[] =
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.id = IMAGE_I386_PC_PXE,
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.flags = PLATFORM_FLAGS_LZMA,
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.prefix = GRUB_KERNEL_I386_PC_PREFIX,
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.data_end = GRUB_KERNEL_I386_PC_DATA_END,
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.prefix_end = GRUB_KERNEL_I386_PC_PREFIX_END,
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.raw_size = GRUB_KERNEL_I386_PC_RAW_SIZE,
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.total_module_size = GRUB_KERNEL_I386_PC_TOTAL_MODULE_SIZE,
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.kernel_image_size = GRUB_KERNEL_I386_PC_KERNEL_IMAGE_SIZE,
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.id = IMAGE_EFI,
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.flags = PLATFORM_FLAGS_NONE,
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.prefix = GRUB_KERNEL_I386_EFI_PREFIX,
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.data_end = GRUB_KERNEL_I386_EFI_DATA_END,
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.prefix_end = GRUB_KERNEL_I386_EFI_PREFIX_END,
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.raw_size = 0,
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.total_module_size = TARGET_NO_FIELD,
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.kernel_image_size = TARGET_NO_FIELD,
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@ -188,7 +188,7 @@ struct image_target_desc image_targets[] =
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.id = IMAGE_I386_IEEE1275,
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.flags = PLATFORM_FLAGS_NONE,
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.prefix = GRUB_KERNEL_I386_IEEE1275_PREFIX,
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.data_end = GRUB_KERNEL_I386_IEEE1275_DATA_END,
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.prefix_end = GRUB_KERNEL_I386_IEEE1275_PREFIX_END,
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.raw_size = 0,
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.total_module_size = TARGET_NO_FIELD,
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.kernel_image_size = TARGET_NO_FIELD,
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@ -210,7 +210,7 @@ struct image_target_desc image_targets[] =
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.id = IMAGE_QEMU,
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.flags = PLATFORM_FLAGS_NONE,
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.prefix = GRUB_KERNEL_I386_QEMU_PREFIX,
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.data_end = GRUB_KERNEL_I386_QEMU_DATA_END,
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.prefix_end = GRUB_KERNEL_I386_QEMU_PREFIX_END,
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.raw_size = 0,
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.total_module_size = TARGET_NO_FIELD,
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.compressed_size = TARGET_NO_FIELD,
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.id = IMAGE_EFI,
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.flags = PLATFORM_FLAGS_NONE,
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.prefix = GRUB_KERNEL_X86_64_EFI_PREFIX,
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.data_end = GRUB_KERNEL_X86_64_EFI_DATA_END,
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.prefix_end = GRUB_KERNEL_X86_64_EFI_PREFIX_END,
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.raw_size = 0,
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.total_module_size = TARGET_NO_FIELD,
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.kernel_image_size = TARGET_NO_FIELD,
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@ -250,7 +250,7 @@ struct image_target_desc image_targets[] =
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.id = IMAGE_YEELOONG_FLASH,
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.flags = PLATFORM_FLAGS_NONE,
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.prefix = GRUB_KERNEL_MIPS_YEELOONG_PREFIX,
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.data_end = GRUB_KERNEL_MIPS_YEELOONG_DATA_END,
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.prefix_end = GRUB_KERNEL_MIPS_YEELOONG_PREFIX_END,
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.raw_size = GRUB_KERNEL_MIPS_YEELOONG_RAW_SIZE,
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.total_module_size = GRUB_KERNEL_MIPS_YEELOONG_TOTAL_MODULE_SIZE,
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.compressed_size = GRUB_KERNEL_MIPS_YEELOONG_COMPRESSED_SIZE,
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@ -270,7 +270,7 @@ struct image_target_desc image_targets[] =
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.id = IMAGE_YEELOONG_ELF,
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.flags = PLATFORM_FLAGS_NONE,
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.prefix = GRUB_KERNEL_MIPS_YEELOONG_PREFIX,
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.data_end = GRUB_KERNEL_MIPS_YEELOONG_DATA_END,
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.prefix_end = GRUB_KERNEL_MIPS_YEELOONG_PREFIX_END,
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.raw_size = GRUB_KERNEL_MIPS_YEELOONG_RAW_SIZE,
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.total_module_size = GRUB_KERNEL_MIPS_YEELOONG_TOTAL_MODULE_SIZE,
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.compressed_size = GRUB_KERNEL_MIPS_YEELOONG_COMPRESSED_SIZE,
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@ -290,7 +290,7 @@ struct image_target_desc image_targets[] =
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.id = IMAGE_PPC,
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.flags = PLATFORM_FLAGS_NONE,
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.prefix = GRUB_KERNEL_POWERPC_IEEE1275_PREFIX,
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.data_end = GRUB_KERNEL_POWERPC_IEEE1275_DATA_END,
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.prefix_end = GRUB_KERNEL_POWERPC_IEEE1275_PREFIX_END,
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.raw_size = 0,
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.total_module_size = TARGET_NO_FIELD,
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.kernel_image_size = TARGET_NO_FIELD,
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@ -312,7 +312,7 @@ struct image_target_desc image_targets[] =
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.id = IMAGE_SPARC64_RAW,
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.flags = PLATFORM_FLAGS_NONE,
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.prefix = GRUB_KERNEL_SPARC64_IEEE1275_PREFIX,
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.data_end = GRUB_KERNEL_SPARC64_IEEE1275_DATA_END,
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.prefix_end = GRUB_KERNEL_SPARC64_IEEE1275_PREFIX_END,
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.raw_size = GRUB_KERNEL_SPARC64_IEEE1275_RAW_SIZE,
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.total_module_size = GRUB_KERNEL_SPARC64_IEEE1275_TOTAL_MODULE_SIZE,
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.kernel_image_size = GRUB_KERNEL_SPARC64_IEEE1275_KERNEL_IMAGE_SIZE,
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@ -330,7 +330,7 @@ struct image_target_desc image_targets[] =
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.id = IMAGE_SPARC64_AOUT,
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.flags = PLATFORM_FLAGS_NONE,
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.prefix = GRUB_KERNEL_SPARC64_IEEE1275_PREFIX,
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.data_end = GRUB_KERNEL_SPARC64_IEEE1275_DATA_END,
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.prefix_end = GRUB_KERNEL_SPARC64_IEEE1275_PREFIX_END,
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.raw_size = GRUB_KERNEL_SPARC64_IEEE1275_RAW_SIZE,
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.total_module_size = GRUB_KERNEL_SPARC64_IEEE1275_TOTAL_MODULE_SIZE,
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.kernel_image_size = GRUB_KERNEL_SPARC64_IEEE1275_KERNEL_IMAGE_SIZE,
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@ -578,7 +578,7 @@ generate_image (const char *dir, char *prefix, FILE *out, char *mods[],
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total_module_size, &start_address, &rel_section,
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&reloc_size, &align, image_target);
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if (image_target->prefix + strlen (prefix) + 1 > image_target->data_end)
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if (image_target->prefix + strlen (prefix) + 1 > image_target->prefix_end)
|
||||
grub_util_error (_("prefix is too long"));
|
||||
strcpy (kernel_img + image_target->prefix, prefix);
|
||||
|
||||
|
|
Loading…
Reference in a new issue