[BRLTTY] BRLTTY in GRUB2

[Vladimir 'φ-coder/phcoder' Serbinenko]

On 22.03.2012 17:31, Vladimir 'φ-coder/phcoder' Serbinenko wrote:
> Hello, all. Here I send an indicative patch as to which parts of 
> brltty don't even compile in GRUB. Additionally the files options.c 
> and async.c were excluded for now. Currently missing symbols:
> missing async.c (it probably has to be mostly rewritten for GRUB):
> asyncRelativeAlarm
async.c from current svn now compiles in GRUB with no problem.
> No exit, so no atexit either:
> atexit in braille_core is not defined
> Missing shared loading wrappers:
> findSharedSymbol in braille_core is not defined
> loadSharedObject in braille_core is not defined
> unloadSharedObject in braille_core is not defined
> GRUB has no getopt, instead options are preparsed by GRUB, a bit 
> similar to argp:
> processOptions in braille_core is not defined
>
> GRUB has two possible clock sources: pretty exact one from arbitrary 
> point in the past or daytime with precision of seconds but no datetime 
> with precision up to milliseconds:
> gettimeofday in braille_core is not defined
> Misc:
> usbForgetDevices in braille_core is not defined
>
> Parts #if 0-out'ed due to:
> -Lack of users (well there is a auth subsystem but there is no concept 
> "running under user")
> -No float/double
> -No exit
> -No signals
> -No writing support
> -No freopen
> -No cwd concept
> -No pipes
> -No executables
>
> Other changes:
> - Other directory organisation
> - GRUB has no "access". Best way to check that file exists is try to 
> open it. So I changed "check-open" into "open-check"
> -Add missing const qualifiers
> -Fix format security
>


-- 
Regards
Vladimir 'φ-coder/phcoder' Serbinenko