Dear Wolfgang Denk,
Dear Marek Vasut,
In message 201203261531.18334.marex@denx.de you wrote:
So that means the board work without this bios emulator driver if the radeon driver is disabled? But we want to use the radeon driver, so we need the bios emulator stuff.
Right. If you don't need feature X and do not configure it, then you don't need the driver that implements feature X, and building without this driver works. If you need feature X, then you must include it, and it is usually no dead code then.
And even if it was, the combination of -ffunction-sections / -fdata-sections with --gc-sections should prevent any damages.
Well, certainly ... but from what Viktor told me, there are slabs of dead code in this stuff.
I think the discussion quite drifted away from the original question, which was if the dead code in bios emulator stuff can be simply removed? ... and if it really is dead code.
If you need the BIOS emulator to initialize the BIOS of a graphics card it it probably not exactly "dead code".
Certainly, though I'm not confident if all of the bios emulator stuff is used.
Best regards,
Wolfgang Denk
Best regards, Marek Vasut