From: hpa <hpa>
Date: Thu, 5 Apr 2001 06:21:53 +0000 (+0000)
Subject: Actually make NASM enforce the checkpoints.
X-Git-Tag: syslinux-3.11~900
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=dd80badc521c8b865df8c4b63ebd2f5e2d5b4c4a;p=platform%2Fupstream%2Fsyslinux.git

Actually make NASM enforce the checkpoints.
---

diff --git a/ldlinux.asm b/ldlinux.asm
index 12ab164..4f02fa0 100644
--- a/ldlinux.asm
+++ b/ldlinux.asm
@@ -738,6 +738,10 @@ bailmsg:	db 'Boot failed', 0Dh, 0Ah, 0
 
 bs_checkpt	equ $			; Must be <= 1EFh
 
+%if (bs_checkpt-$$) > 0x1EF
+%error "Boot sector overflow"
+%endif
+
 		zb 1EFh-($-$$)
 bs_magic	equ $			; From here to the magic_len equ
 					; must match ldlinux_magic
@@ -1045,6 +1049,10 @@ safedumpregs:
 
 rl_checkpt	equ $				; Must be <= 400h
 
+%if (rl_checkpt-$$) > 0x400
+%error "Sector 1 overflow"
+%endif
+
 ; ----------------------------------------------------------------------------
 ;  End of code and data that have to be in the first sector
 ; ----------------------------------------------------------------------------