D31259.id92573.diff
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	Index: sys/arm64/linux/linux_machdep.c
	===================================================================
	--- sys/arm64/linux/linux_machdep.c
	+++ sys/arm64/linux/linux_machdep.c
	@@ -37,6 +37,7 @@
	#include <sys/ktr.h>
	#include <sys/proc.h>
	#include <sys/sdt.h>
	+#include <sys/syscallsubr.h>

	#include <security/audit/audit.h>

	@@ -124,13 +125,25 @@
	return (linux_madvise_common(td, PTROUT(uap->addr), uap->len, uap->behav));
	}

	-/* LINUXTODO: implement arm64 linux_rt_sigsuspend */
	int
	linux_rt_sigsuspend(struct thread td, struct linux_rt_sigsuspend_args uap)
	{
	+ l_sigset_t lmask;
	+ sigset_t sigmask;
	+ int error;

	- LIN_SDT_PROBE0(machdep, linux_rt_sigsuspend, todo);
	- return (EDOOFUS);
	+ LINUX_CTR2(rt_sigsuspend, "%p, %ld",
	+ uap->newset, uap->sigsetsize);
	+
	+ if (uap->sigsetsize != sizeof(l_sigset_t))
	+ return (EINVAL);
	+
	+ error = copyin(uap->newset, &lmask, sizeof(l_sigset_t));
	+ if (error)
	+ return (error);
	+
	+ linux_to_bsd_sigset(&lmask, &sigmask);
	+ return (kern_sigsuspend(td, sigmask));
	}

	/* LINUXTODO: implement arm64 linux_sigaltstack */