linux-kernel - Re: [RFC PATCH] ARM: UNWINDER_FRAME

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Message-ID: <20190805133940.GA10425@arm.com>
Date:   Mon, 5 Aug 2019 14:39:48 +0100
From:   Dave Martin <Dave.Martin@....com>
To:     Nathan Huckleberry <nhuck@...gle.com>
Cc:     Robin Murphy <robin.murphy@....com>,
        clang-built-linux <clang-built-linux@...glegroups.com>,
        Tri Vo <trong@...gle.com>, linux@...linux.org.uk,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH] ARM: UNWINDER_FRAME_POINTER implementation for Clang

On Fri, Aug 02, 2019 at 10:27:30AM -0700, Nathan Huckleberry wrote:
> You're right. Would pushing an extra register be an adequate fix?

Would forcing CONFIG_ARM_UNWIND=y for clang work as an alternative to
this?

Assuming clang supports -funwind-tables or equivalent, this may just
work.

[...]

Cheers
---Dave