[PATCH v3 8/9] selftests/arm: Add ptrace_64 test

[Mark Brown]

On Tue, Jun 25, 2024 at 05:54:07PM +0530, Dev Jain wrote:

> +static int do_child(void)
> +{
> +	if (ptrace(PTRACE_TRACEME, -1, NULL, NULL))
> +		ksft_exit_fail_perror("PTRACE_TRACEME");
> +
> +	/* SIGTRAP makes the child stop after exec; do_parent() resumes it */
> +	execv("trivial_32bit_program", NULL);
> +	return EXIT_SUCCESS;
> +}

We should check that the execv() worked, one thing that can go wrong is
partially installing the tests or trying to run the tests in a different
directory to the one where everything is installed.  I'd be inclined to
specify the path as ./ too to avoid surprises.
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