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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I know this patch is pretty rough. It’s just
meant as an example of what I’d like to be able to do with buildrom.
It is a patch which enables most of buildrom to succeed building for 64-bit.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>When I use Linux-As-Bootloader, I want to use a 64-bit
kernel so that any patches I have to do for my hardware only need to be done
for one architecture.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>A while ago I did a wiki page <a
href="http://linuxbios.org/index.php/Tyan_S2892_Build_Tutorial">http://linuxbios.org/index.php/Tyan_S2892_Build_Tutorial</a>
outlining how to use buildrom to put the 64-bit kernel in the <st1:country-region
w:st="on"><st1:place w:st="on">ROM.</st1:place></st1:country-region><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I wanted to fit it into the new buildrom architecture, but I
ran into a few problems:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<ol style='margin-top:0in' start=1 type=1>
<li class=MsoNormal style='mso-list:l0 level1 lfo1'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>There’s not a clear way
to add architectures for targets (Especially since it really only makes
sense for 64-bit)<o:p></o:p></span></font></li>
<ol style='margin-top:0in' start=1 type=a>
<li class=MsoNormal style='mso-list:l0 level2 lfo1'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>I think that the same
configuration variable should be used for the target architecture for the
kernel and uClibc<o:p></o:p></span></font></li>
<li class=MsoNormal style='mso-list:l0 level2 lfo1'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>We could add a suffix to every
default configuration file (e.g., defconfig-serengeti_cheetah-i386 or
defconfig-serengeti_cheetah-x86_64<o:p></o:p></span></font></li>
</ol>
<li class=MsoNormal style='mso-list:l0 level1 lfo1'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>It would be nice to be able to
set the ROM size if you have a larger one than comes standard with the
platform<o:p></o:p></span></font></li>
</ol>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I think that buildrom is the way to go and I like the make
menuconfig.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>In order to make the 64-bit kernel fit as I configured it, I
excluded kexec from the ROM and included a statically-linked kexec on the boot drive,
so it was nice to be able to remove the kexec tools from the image.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>As soon as we decide the best way, I’ll clean it up
and add serengeti_cheetah-x86_64 support and tyan_s2892-x86_64 support.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Thanks,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Myles <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
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