From: Will Deacon <will.deacon@arm.com>
To: Jean Pihet <jean.pihet@linaro.org>
Cc: libunwind-devel <libunwind-devel@nongnu.org>,
Jiri Olsa <jolsa@redhat.com>,
"patches@linaro.org" <patches@linaro.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [RFC PATCH 0/3] Add support for dwarf compat mode unwinding
Date: Tue, 21 Jan 2014 11:21:55 +0000 [thread overview]
Message-ID: <20140121112155.GI30706@mudshark.cambridge.arm.com> (raw)
In-Reply-To: <1390252922-25889-1-git-send-email-jean.pihet@linaro.org>
On Mon, Jan 20, 2014 at 09:21:59PM +0000, Jean Pihet wrote:
> In the case of unwinding the debug info from a binary that has a different
> address size than the current native platform, it is needed to record
> it in the address space struct, in order to correctly parse the debug
> info later. This mode is known as compat mode.
Terminology issues here.... compat mode isn't really that well defined, but
typically involves a different kernel ABI. That doesn't necessarily affect
the address size.
> This is the case when e.g. profiling an ARMv7 binary that runs on an
> ARMv8 (aka AARCH64) platform.
ARMv8 != AArch64
Will
next prev parent reply other threads:[~2014-01-21 11:22 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-20 21:21 Jean Pihet
2014-01-20 21:22 ` [PATCH 1/3] Add support for different binary target address sizes Jean Pihet
2014-01-20 21:22 ` [PATCH 2/3] Dwarf: load and parse the debug info of different " Jean Pihet
2014-01-20 21:22 ` [PATCH 3/3] Dwarf: unwind the recorded stack frame " Jean Pihet
2014-01-21 11:21 ` Will Deacon [this message]
[not found] ` <CAN7rbOstSYgZ39o68AA+z62Uj6KYzNhDkyX+sbHPr=xc-rRjRg@mail.gmail.com>
[not found] ` <CAFrcx1nSDD4Sts7uDxxyG9LpyQiwFhby8oLEpWW-qotyWPpGpw@mail.gmail.com>
[not found] ` <CAN7rbOti4ODDz9h_oMQpqdB5JWwL0wpB-7rzcbKxho_46pKawg@mail.gmail.com>
2014-02-03 15:28 ` [Libunwind-devel] [RFC PATCH 0/3] Add support for dwarf compat mode unwinding Jean Pihet
2014-02-03 15:50 ` Arun Sharma
2014-02-03 16:36 ` Jiri Olsa
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