PS3 Help!!! error: PIC register clobbered by 'r2' in 'asm' asm volatile

Crystal said:
Houston, we have a problem. Never trust RPCS3...
On real PS3, RSX hangs on rsxtest and rsxtest_spu samples. Black screen. All other samples in PSL1GHT samples works and tiny3d samples don't work like rsxtest.
We need deep investigation.
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Just for reference: last time I built my toolchain (some days ago, after some vectormath/makefile changes) I was testing rsxtest and it worked fine (on real ps3). At that time, I also tested rsxtest_spu and that didn't work.
 
Crystal said:
Too many attemps.... just comments cant break source code.....
After rebuild of librsx from ps3dev/PSL1GHT, now works again (rsxtest)
Tiny3D no
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rsxContextCallback where is asm volatile that uses r31, r0, etc etc is called by macro RSX_CONTEXT_CURRENT_BEGIN
That macro is (also) called by rsxSetSurface used into many rsx samples.... so tiny_rsxContextCallback inside tiny3d should work, they are the same.
 
Crystal said:
Changed all inline extern functions in standard funcitons...... nothing... no works.
Click to expand...

the silly thing is that the code was working with the old gcc 4.x , so it's probably something related to gcc 7 optimizations, the way it builds the code ends up not-working in a real PS3 console.

don't feel bad about it, I wonder if there's some other workaround to avoid this black-screen situation :sco hmmthink:
 
kudos to @Crystal who did a lot of work to figure this issue out :)

now it seems like a small issue "memcpy memory alignment", but to narrow it down to the exact point of Tiny3d required a lot of patience, tests, and hard work :encouragement:

the good news is that we'll be able to build tiny3d with the latest toolchain, and update/improve the library code when needed
 
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