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From: Nick Desaulniers <ndesaulniers@google.com>
To: jthierry@redhat.com
Cc: ardb@kernel.org, catalin.marinas@arm.com, jpoimboe@redhat.com,
	 linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org,  mark.rutland@arm.com,
	masahiroy@kernel.org, peterz@infradead.org,  will@kernel.org,
	ycote@redhat.com, maskray@google.com, morbo@google.com,
	 swine@google.com, yonghyun@google.com,
	clang-built-linux@googlegroups.com,
	 Nick Desaulniers <ndesaulniers@google.com>
Subject: Re: [RFC PATCH v2 00/13] objtool: add base support for arm64
Date: Fri,  5 Mar 2021 15:51:02 -0800	[thread overview]
Message-ID: <20210305235102.384950-1-ndesaulniers@google.com> (raw)
In-Reply-To: <20210303170932.1838634-1-jthierry@redhat.com>

(in response to
https://lore.kernel.org/linux-arm-kernel/20210303170932.1838634-1-jthierry@redhat.com/
from the command line)

> Changes since v1[2]:
> - Drop gcc plugin in favor of -fno-jump-tables

Thank you for this!  I built+booted(under emulation) arm64 defconfig and built
arm64 allmodconfig with LLVM=1 with this series applied.

Tested-by: Nick Desaulniers <ndesaulniers@google.com>

One thing I noticed was a spew of warnings for allmodconfig, like:
init/main.o: warning: objtool: asan.module_ctor()+0xc: call without frame pointer save/setup
init/main.o: warning: objtool: asan.module_dtor()+0xc: call without frame pointer save/setup

I assume those are from the KASAN constructors. See also:
https://github.com/ClangBuiltLinux/linux/issues/1238

Can we disable HAVE_STACK_PROTECTOR if CC_IS_CLANG and CONFIG_KASAN is set,
until we can resolve the above issue?

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  parent reply	other threads:[~2021-03-05 23:53 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-03 17:09 [RFC PATCH v2 00/13] objtool: add base support for arm64 Julien Thierry
2021-03-03 17:09 ` [RFC PATCH v2 01/13] tools: Add some generic functions and headers Julien Thierry
2021-03-03 17:09 ` [RFC PATCH v2 02/13] tools: arm64: Make aarch64 instruction decoder available to tools Julien Thierry
2021-03-03 17:09 ` [RFC PATCH v2 03/13] tools: bug: Remove duplicate definition Julien Thierry
2021-03-03 17:09 ` [RFC PATCH v2 04/13] objtool: arm64: Add base definition for arm64 backend Julien Thierry
2021-03-03 17:09 ` [RFC PATCH v2 05/13] objtool: arm64: Decode add/sub instructions Julien Thierry
2021-03-03 17:09 ` [RFC PATCH v2 06/13] objtool: arm64: Decode jump and call related instructions Julien Thierry
2021-03-03 17:09 ` [RFC PATCH v2 07/13] objtool: arm64: Decode other system instructions Julien Thierry
2021-03-03 17:09 ` [RFC PATCH v2 08/13] objtool: arm64: Decode load/store instructions Julien Thierry
2021-03-03 17:09 ` [RFC PATCH v2 09/13] objtool: arm64: Decode LDR instructions Julien Thierry
2021-03-03 17:09 ` [RFC PATCH v2 10/13] objtool: arm64: Accept padding in code sections Julien Thierry
2021-03-03 17:09 ` [RFC PATCH v2 11/13] objtool: arm64: Handle supported relocations in alternatives Julien Thierry
2021-03-03 17:09 ` [RFC PATCH v2 12/13] objtool: arm64: Ignore replacement section for alternative callback Julien Thierry
2021-03-03 17:09 ` [RFC PATCH v2 13/13] objtool: arm64: Enable stack validation for arm64 Julien Thierry
2021-03-07 10:25   ` Ard Biesheuvel
2021-03-09 14:31     ` Julien Thierry
2021-03-03 19:17 ` [RFC PATCH v2 00/13] objtool: add base support " Peter Zijlstra
2021-03-04 14:03   ` Julien Thierry
2021-03-05 23:51 ` Nick Desaulniers [this message]
2021-03-06  0:04   ` Nick Desaulniers
2021-03-09 14:27     ` Julien Thierry

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