From: Josh Poimboeuf <jpoimboe@redhat.com>
To: Raphael Gault <raphael.gault@arm.com>
Cc: julien.thierry@arm.com, peterz@infradead.org,
catalin.marinas@arm.com, will.deacon@arm.com,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [RFC V2 00/16] objtool: Add support for Arm64
Date: Thu, 16 May 2019 09:29:17 -0500 [thread overview]
Message-ID: <20190516142917.nuhh6dmfiufxqzls@treble> (raw)
In-Reply-To: <20190516103655.5509-1-raphael.gault@arm.com>
On Thu, May 16, 2019 at 11:36:39AM +0100, Raphael Gault wrote:
> Noteworthy points:
> * I still haven't figured out how to detect switch-tables on arm64. I
> have a better understanding of them but still haven't implemented checks
> as it doesn't look trivial at all.
Switch tables were tricky to get right on x86. If you share an example
(or even just a .o file) I can take a look. Hopefully they're somewhat
similar to x86 switch tables. Otherwise we may want to consider a
different approach (for example maybe a GCC plugin could help annotate
them).
--
Josh
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next prev parent reply other threads:[~2019-05-16 14:29 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-16 10:36 [RFC V2 00/16] objtool: Add support for Arm64 Raphael Gault
2019-05-16 10:36 ` [RFC 01/16] objtool: Add abstraction for computation of symbols offsets Raphael Gault
2019-05-16 10:36 ` [RFC 02/16] objtool: orc: Refactor ORC API for other architectures to implement Raphael Gault
2019-05-16 10:36 ` [RFC 03/16] objtool: Move registers and control flow to arch-dependent code Raphael Gault
2019-05-16 10:36 ` [RFC 04/16] objtool: arm64: Add required implementation for supporting the aarch64 architecture in objtool Raphael Gault
2019-05-16 10:36 ` [RFC 05/16] objtool: arm64: Handle hypercalls as nops Raphael Gault
2019-05-16 10:36 ` [RFC 06/16] arm64: alternative: Mark .altinstr_replacement as containing executable instructions Raphael Gault
2019-05-16 10:36 ` [RFC 07/16] objtool: special: Adapt special section handling Raphael Gault
2019-05-16 10:36 ` [RFC 08/16] objtool: arm64: Adapt the stack frame checks for arm architecture Raphael Gault
2019-05-16 10:36 ` [RFC 09/16] arm64: assembler: Add macro to annotate asm function having non standard stack-frame Raphael Gault
2019-05-16 10:36 ` [RFC 10/16] arm64: sleep: Prevent stack frame warnings from objtool Raphael Gault
2019-05-16 10:36 ` [RFC 11/16] objtool: arm64: Enable stack validation for arm64 Raphael Gault
2019-05-16 10:36 ` [RFC 12/16] arm64: kvm: Annotate non-standard stack frame functions Raphael Gault
2019-05-16 10:36 ` [RFC 13/16] arm64: kernel: Add exception on kuser32 to prevent stack analysis Raphael Gault
2019-05-16 10:36 ` [RFC 14/16] arm64: crypto: Add exceptions for crypto object " Raphael Gault
2019-05-16 10:36 ` [RFC 15/16] objtool: Introduce INSN_UNKNOWN type Raphael Gault
2019-05-16 10:36 ` [RFC 16/16] arm64: kernel: Annotate non-standard stack frame functions Raphael Gault
2019-05-16 14:29 ` Josh Poimboeuf [this message]
2019-05-21 12:50 ` [RFC V2 00/16] objtool: Add support for Arm64 Raphael Gault
2019-05-22 23:11 ` Josh Poimboeuf
2019-05-23 7:31 ` Raphael Gault
2019-05-23 7:59 ` Raphael Gault
2019-05-28 22:24 ` Josh Poimboeuf
2019-06-13 15:55 ` Raphael Gault
2019-06-13 16:09 ` Josh Poimboeuf
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