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<p class=MsoNormal>Hi all,<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I did some changes to the AsmPrinter in order to print
relocation information in GAS format compatible with ARM ELF. It doesn’t
look like the best solution, but there were some problems and the fact that
this is my first attempt to change LLVM.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>My original assumption was that, changing MCExpr to accept
relocation information, we could propagate that down later to whatever gets
written from it. To change that, one needs to overwrite the LowerConstant
function in AsmPrinter, but that’s a static function that rely on other
static functions in the same file. Also, ARMMCInstLower (my first guess) seems
to have not being used to generate anything.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I know that MC is radically changing the area as we speak,
so I also didn’t want to spend too much time on something that will disappear
in a few months. I’m happy to conform to the new specifications if there
is one and it works for ARM.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>In the end, the change I had to do was simpler, less generic
and a bit hacky, so I’m sending this patch to the list (instead of the
patch list directly) to request for comments. The patch applies to the trunk (a
few minutes ago).<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Cheers,<o:p></o:p></p>
<p class=MsoNormal>--renato<o:p></o:p></p>
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