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kselftest/arm64: Provide a SIGUSR1 handler in the kernel mode FP stress test

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The other stress test programs provide a SIGUSR1 handler which modifies the
live register state in order to validate that signal context is being
restored during signal return. While we can't usefully do this when testing
kernel mode FP usage provide a handler for SIGUSR1 which just counts the
number of signals like we do for SIGUSR2, allowing fp-stress to treat all
the test programs uniformly.

Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20241107-arm64-fp-stress-irritator-v2-5-c4b9622e36ee@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Mark Brown 2024-11-07 01:39:24 +00:00 committed by Catalin Marinas
parent d65f27d240
commit 7368debf27
1 changed files with 4 additions and 0 deletions
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4
tools/testing/selftests/arm64/fp/kernel-test.c
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@ -267,6 +267,10 @@ int main(void)
strerror(errno), errno);
sa.sa_sigaction = handle_kick_signal;
ret = sigaction(SIGUSR1, &sa, NULL);
if (ret < 0)
printf("Failed to install SIGUSR1 handler: %s (%d)\n",
strerror(errno), errno);
ret = sigaction(SIGUSR2, &sa, NULL);
if (ret < 0)
printf("Failed to install SIGUSR2 handler: %s (%d)\n",