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Date:      Tue, 19 Sep 2023 15:43:03 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 273929] AArch64 machine-dependent code clobbers X0 in SIGTRAP from capsicum violations
Message-ID:  <bug-273929-227-ZqH9jnzrr3@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-273929-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=273929

--- Comment #7 from Kyle Evans <kevans@freebsd.org> ---
(In reply to David Chisnall from comment #4)

re: x10, I was mainly proposing its use within the kernel to decide what it
needs to do with x0/x9, not something that an application can rely on. I'm not
sure that we have anywhere else useful in the trapframe to smuggle that kind of
indication through from beginning to end of syscall handling.

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