OK, that got cut off for some reason ... here's the rest of the post:
There is no fbt:::entry output for copyin_more but there is output for
fbt:::return. After perusing the source/assembler, I've discovered the
following:
- uiomove calls xcopyin which has no entry/return probes
- xcopyin calls copyin_more+0xc (labeled as .do_copyin in asm):
xcopyin+0xe0: ba,pt %xcc, SUNW,UltraSPARC-IIIi:copyin_more+0xc
- copyin_more does have entry/return probes, but the entry probe doesn't fire,
presumably because we're not entering the function at +0x0
This leads to "unbalanced" output and is seriously screwing with the
stack-depth
logic in my code. I might be able to hack around this, but I'd prefer something
elegant. Any ideas?
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