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| author | H. Peter Anvin <hpa@zytor.com> | 2009-06-01 14:47:45 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2009-06-01 14:47:45 -0700 |
| commit | 7b5d546fdbf1d330ecc18d4c5b5d15db7cb5c783 (patch) | |
| tree | 0545f8454ce6ba9215c4f322d8ffad401da367ec /core/isolinux.asm | |
| parent | d24dee1326c10b0488fe0bdaccb819854a2325c8 (diff) | |
| download | syslinux-7b5d546fdbf1d330ecc18d4c5b5d15db7cb5c783.tar.gz | |
prepcore: error out if the compressed image is too large to load
Export, from each loader stage, the symbol MaxLMA which indicates to
prepcore how big the image is allowed to be. Change prepcore to
enforce this limit and to error out otherwise.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'core/isolinux.asm')
| -rw-r--r-- | core/isolinux.asm | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/core/isolinux.asm b/core/isolinux.asm index 37c14744..b2c9c986 100644 --- a/core/isolinux.asm +++ b/core/isolinux.asm @@ -431,6 +431,8 @@ found_file: ; address (7C00h) is *not* 2K-sector-aligned, the safest ; way to deal with this is to load into the xfer_buf_seg ; and then copy the data in place. +MaxLMA equ xfer_buf_seg << 4 + mov bx,(7C00h+SECTOR_SIZE) >> 4 mov bp,[ImageSectors] |