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| author | H. Peter Anvin <hpa@zytor.com> | 2009-06-09 11:34:00 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2009-06-09 11:34:00 -0700 |
| commit | 87b70b32fadb057d9eabb81e4f1d57742217b590 (patch) | |
| tree | 4a0caed17bbd9096c2f488602094fd97deaf73bf /memdisk | |
| parent | 78edf2be58fd9106af088b8a2b09fca1d41e1dfa (diff) | |
| download | syslinux-87b70b32fadb057d9eabb81e4f1d57742217b590.tar.gz | |
memdisk: don't use the stack before bootstrap
Under some certain circumstances, it might not be safe to use the
stack as it was set up, so use a jump instead of a call to invoke the
bootstrap.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'memdisk')
| -rw-r--r-- | memdisk/memdisk16.asm | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/memdisk/memdisk16.asm b/memdisk/memdisk16.asm index 0c5b9973..6bafae7f 100644 --- a/memdisk/memdisk16.asm +++ b/memdisk/memdisk16.asm @@ -159,8 +159,7 @@ copy_cmdline: mov gs,si lss sp,[cs:b_sssp] movzx esp,sp - call far [cs:b_csip] - int 18h ; A far return -> INT 18h + jmp far [cs:b_csip] ; ; We enter protected mode, set up a flat 32-bit environment, run rep movsd |