vbatts/grub
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

* grub-core/boot/i386/pc/lnxboot.S (real_code_2): Ensure that the

Browse source 
initial chunk read from the kernel always includes GRUB's multiboot
header, which is now outside the first sector.
This commit is contained in:
Colin Watson 2011-03-11 11:51:10 +00:00
parent be1a7ce0cf
commit 9b43bf396a
2 changed files with 15 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

9
grub-core/boot/i386/pc/lnxboot.S
View file

@ -178,8 +178,13 @@ real_code_2:
pushw %es
popw %ds
#if GRUB_KERNEL_I386_PC_NO_REED_SOLOMON_PART + 4 < 0x200
movl $0x200, %ecx
addl %ecx, %esi
#else
movl $(GRUB_KERNEL_I386_PC_NO_REED_SOLOMON_PART + 4), %ecx
addl $0x200, %esi
#endif
movl $DATA_ADDR, %edi
call LOCAL(move_memory)
@ -196,7 +201,11 @@ real_code_2:
1:
movl %ss:(DATA_ADDR + GRUB_KERNEL_MACHINE_COMPRESSED_SIZE), %ecx
#if GRUB_KERNEL_I386_PC_NO_REED_SOLOMON_PART + 4 < 0x200
addl $(GRUB_KERNEL_MACHINE_RAW_SIZE - 0x200), %ecx
#else
addl $(GRUB_KERNEL_MACHINE_RAW_SIZE - (GRUB_KERNEL_I386_PC_NO_REED_SOLOMON_PART + 4)), %ecx
#endif
2:
call LOCAL(move_memory)