linux-kernel - Re: [PATCH v6 18/19] arm64:ilp32: change COMPAT_ELF_PLATFORM to report a a subplatform for ILP32

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Message-Id: <85D7EAC4-B4FD-44D8-B1EC-BDEFD1DC1229@theobroma-systems.com>
Date:	Wed, 18 Nov 2015 22:47:08 +0100
From:	"Dr. Philipp Tomsich" <philipp.tomsich@...obroma-systems.com>
To:	Yury Norov <ynorov@...iumnetworks.com>
Cc:	Andrew Pinski <pinskia@...il.com>,
	"Zhangjian (Bamvor)" <bamvor.zhangjian@...wei.com>,
	Arnd Bergmann <arnd@...db.de>,
	Catalin Marinas <catalin.marinas@....com>,
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
	linux-kernel@...r.kernel.org, ddaney.cavm@...il.com,
	jan.dakinevich@...il.com, Prasun.Kapoor@...iumnetworks.com,
	Christoph Müllner 
	<christoph.muellner@...obroma-systems.com>, broonie@...nel.org,
	andrey.konovalov@...aro.org,
	Nathan Lynch <Nathan_Lynch@...tor.com>,
	Alexander Graf <agraf@...e.de>, klimov.linux@...il.com,
	joseph@...esourcery.com, schwab@...e.de
Subject: Re: [PATCH v6 18/19] arm64:ilp32: change COMPAT_ELF_PLATFORM to report a a subplatform for ILP32

Yury,

We had implemented gdb-support against the the earlier ILP32 incarnation.
I’ll take a look with the latest patch-set and see whether these still apply.

Best,
Philipp.

> On 18 Nov 2015, at 21:25, Yury Norov <ynorov@...iumnetworks.com> wrote:
> 
> On Wed, Nov 18, 2015 at 03:21:05AM -0800, pinskia@...il.com wrote:
>> 
>> 
>>> On Nov 18, 2015, at 12:11 AM, Zhangjian (Bamvor) <bamvor.zhangjian@...wei.com> wrote:
>>> 
>>> Hi, Yury
>>> 
>>>> On 2015/11/18 5:16, Yury Norov wrote:
>>>> From: Philipp Tomsich <philipp.tomsich@...obroma-systems.com>
>>>> 
>>>> To make life for tools (such as gdb) easier when dealing with ILP32 processes,
>>>> we report a proper subarchitecture for ILP32 in the ELF auxiliary vectors.
>>> I saw some ilp32 relative patches in binutils mailing list. Does gdb
>>> fully support ilp32?
>> 
>> I have a patch set but I have not tested them with the latest kernel patch set yet. The branch is located in the binutils-gdb git is https://sourceware.org/git/?p=binutils-gdb.git;a=shortlog;h=refs/heads/users/pinskia/gdb-aarch64-ilp32 .
>> I think it will mostly work except for core support might need to be changed slightly. 
>> 
>> Thanks,
>> Andrew
>>> 
> 
> Yes, it works mostly. I can read and modify text/data, set breakpoints
> etc.
> 
>>> Regards
>>> 
>>> Bamvor
>>> 

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