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From: Peter Zijlstra <peterz@infradead.org>
To: Dan Li <ashimida.1990@gmail.com>
Cc: Aaron Tomlin <atomlin@redhat.com>,
	Alexander Potapenko <glider@google.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Alexandru Elisei <alexandru.elisei@arm.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Anshuman Khandual <anshuman.khandual@arm.com>,
	Ard Biesheuvel <ardb@kernel.org>,
	Arnaldo Carvalho de Melo <acme@kernel.org>,
	Arnd Bergmann <arnd@arndb.de>, Boqun Feng <boqun.feng@gmail.com>,
	Borislav Petkov <bp@alien8.de>, Borislav Petkov <bp@suse.de>,
	Brian Gerst <brgerst@gmail.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
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	Masahiro Yamada <masahiroy@kernel.org>,
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	Sami Tolvanen <samitolvanen@google.com>,
	Song Liu <song@kernel.org>, Thomas Gleixner <tglx@linutronix.de>,
	Tom Rix <trix@redhat.com>, Uros Bizjak <ubizjak@gmail.com>,
	Will Deacon <will@kernel.org>,
	x86@kernel.org, Yuntao Wang <ytcoode@gmail.com>,
	Yu Zhao <yuzhao@google.com>,
	Zhen Lei <thunder.leizhen@huawei.com>,
	linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org, llvm@lists.linux.dev,
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Subject: Re: [RFC/RFT,V2] CFI: Add support for gcc CFI in aarch64
Date: Mon, 27 Mar 2023 11:30:16 +0200	[thread overview]
Message-ID: <20230327093016.GB4253@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20230325085416.95191-1-ashimida.1990@gmail.com>

On Sat, Mar 25, 2023 at 01:54:16AM -0700, Dan Li wrote:

> In the compiler part[4], most of the content is the same as Sami's
> implementation[3], except for some minor differences, mainly including:
> 
> 1. The function typeid is calculated differently and it is difficult
> to be consistent.

This means there is an effective ABI break between the compilers, which
is sad :-( Is there really nothing to be done about this?

  reply	other threads:[~2023-03-27  9:30 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20221219061758.23321-1-ashimida.1990@gmail.com>
2023-03-25  8:54 ` [RFC/RFT,V2] CFI: Add support for gcc CFI in aarch64 Dan Li
2023-03-27  9:30   ` Peter Zijlstra [this message]
2023-03-27 22:17     ` Sami Tolvanen
2023-04-05 11:49       ` Dan Li
2023-12-13  8:48       ` Dan Li
     [not found]         ` <4a84af95-6270-6764-6a40-875ec20fc3e1@lixiang.com>
2023-12-13 14:45           ` Mark Rutland
2023-12-13 19:35           ` Kees Cook
2023-04-05 11:48     ` Dan Li

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