[syslinux] com32 compatibility between syslinux 3-4

H. Peter Anvin hpa at zytor.com
Fri Jun 10 10:39:38 PDT 2011


On 06/09/2011 06:45 PM, Ayvaz, James wrote:
> Hi Everyone,
>                 This question might be a long shot, but is it possible to mix and match com32 programs written against Syslinux 3 with com32 programs written against Syslinux 4 without recompiling.   We are trying to have our com32 programs run with different versions of Syslinux without modification.  Appreciate any advice,
> 

It is possible, but the standard library doesn't support it: it would
have to be a COM32R image -- and therefore relocatable -- which looks
for the presence of the protected mode APIs and only uses them if
available, otherwise falls back to the Syslinux 3 int calls.

	-hpa




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