math-emu: Add support for reporting exact invalid exception
authorKumar Gala <galak@kernel.crashing.org>
Fri, 27 Jun 2008 14:39:00 +0000 (09:39 -0500)
committerKumar Gala <galak@kernel.crashing.org>
Tue, 16 Sep 2008 15:01:37 +0000 (10:01 -0500)
commit48d6c64311ddb6417b901639530ccbc47bdc7635
treedfdb08412813343a6ee3bb8b57d34b99ec818a27
parent40d3057ac036f2501c1930728a6179be4fca577b
math-emu: Add support for reporting exact invalid exception

Some architectures (like powerpc) provide status information on the exact
type of invalid exception.  This is pretty straight forward as we already
report invalid exceptions via FP_SET_EXCEPTION.

We add new flags (FP_EX_INVALID_*) the architecture code can define if it
wants the exact invalid exception reported.

We had to split out the INF/INF and 0/0 cases for divide to allow reporting
the two invalid forms properly.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: David S. Miller <davem@davemloft.net>
include/math-emu/op-common.h
include/math-emu/soft-fp.h
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