Le 26/05/2021 à 03:13, Richard Henderson a écrit :
Sparc v8plus is a sparc64 running a 32-bit ABI.
The significant difference vs sparc32 is that all 64 bits of
the %g and %o registers, plus %xcc, are saved across interrupts,
context switches, and signals.
There's a special marker in the saved %psr value that's used to
indicate that %xcc and the high bits are present in the frame.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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I have been unable to find an extant v8plus distribution with
which to test this beyond compilation. Thus the RFC. I know
debian used to have one, but they have moved to pure sparc64 now.
Thoughts?
In my test, I use debian wheezy, and it seems to be sparc32plus v8+:
$ file chroot/sparc/wheezy/bin/ls
chroot/sparc/wheezy/bin/ls: ELF 32-bit MSB executable, SPARC32PLUS, V8+
Required, total store
ordering, version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux.so.2,
for GNU/Linux
2.6.26, BuildID[sha1]=3fdfb5b9f829824f6110b7a2d91efd9947614263, stripped
I get wheezy from http://archive.debian.org/debian
If you want I can make a try with your patch.