Re: [PATCH] Report any problems with loading the VGA driver for PPC Macintosh targets

[Programmingkid]

> On Aug 30, 2021, at 4:59 PM, Peter Maydell <peter.maydell@linaro.org> wrote:
> 
> On Mon, 30 Aug 2021 at 21:29, Programmingkid <programmingkidx@gmail.com> 
> wrote:
>> I found out that there are two pc-bios folders. One in the root directory
>> and one in the build directory. QEMU is looking in the pc-bios folder
>> located inside the build folder. The qemu_vga.ndrv file is only located
>> in the root directory pc-bios folder. I think a good solution to this
>> issue is to first remove one of the pc-bios folders. I'm not sure if it
>> is just me who has two pc-bios folders or if everyone does.
> 
> Having two pc-bios folders is expected. The one in the source tree is
> the one which has the files we actually carry around in git. The one
> in the build tree is created by 'configure' and populated with symbolic
> links back to the files in the source tree. We need this one because
> the QEMU executable doesn't (and shouldn't) know where the source tree is:
> when it is looking for files it will look in places relative to the
> location of the executable itself (ie relative to the build tree)
> as well as places set by configure (used when you install QEMU and
> its various supporting files).
> 
> The reason qemu_vga.ndrv is not in the pc-bios folder in the build
> tree is because when that file was added we forgot to add handling
> for it in configure. I'm not sure why nobody else has fallen over
> this in the intervening 3 years: running QEMU from the build tree
> will never find the file, and it will not be installed via
> 'make install' either.
> 
> (The pc-bios symlink stuff is a bit of a mess, as the comment about
> it in configure notes. Perhaps meson now offers a cleaner way to
> handle this? In particular pc-bios/meson.build already has to carry
> around a complete list of all the bios blobs, so it could probably
> create the symlink farm itself.)
> 
> thanks
> -- PMM

I did try working on the pc-bios/meson.build file. I deleted all the entries in 
the 'blobs' list. Then I ran './configure --target-list=ppc-softmmu && make -j 
9'. The pc-bios folder in the build directory was still populated with all the 
files (except for qemu_vga.ndrv). Anyone knows what exactly populates the 
pc-bios folder in the build folder?