kselftest/arm64: Check that SVCR is 0 in signal handlers

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We don't currently validate that we exit streaming mode and clear ZA when
we enter a signal handler. Add simple checks for this in the SSVE and ZA
tests.

Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20241106-arm64-fpmr-signal-test-v1-1-31fa34ce58fe@kernel.org
[catalin.marinas@arm.com: Use %lx in fprintf() as uint64_t seems to be unsigned long in glibc]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

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Mark Brown 2024-11-06 17:07:51 +00:00 • committed by Catalin Marinas

parent 694e2803fe

commit 116e50d647

3 changed files with 23 additions and 0 deletions

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13

tools/testing/selftests/arm64/signal/sve_helpers.h

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5

tools/testing/selftests/arm64/signal/testcases/ssve_regs.c

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5

tools/testing/selftests/arm64/signal/testcases/za_regs.c

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