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From: Waldemar Brodkorb <wbx@openadk.org>
To: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Ben Wolsieffer <Ben.Wolsieffer@hefring.com>,
	yann.morin.1998@free.fr, buildroot@buildroot.org,
	Giulio Benetti <giulio.benetti@benettiengineering.com>,
	Dario Binacchi <dario.binacchi@amarulasolutions.com>,
	linux-amarula@amarulasolutions.com,
	Romain Naour <romain.naour@gmail.com>
Subject: Re: [Buildroot] [PATCH v2 0/9] add ARM FDPIC support
Date: Sun, 22 Sep 2024 17:36:13 +0200	[thread overview]
Message-ID: <ZvA5bfdDEB3WVBOF@waldemar-brodkorb.de> (raw)
In-Reply-To: <20240922121431.3fa71502@windsurf>

Hi Thomas,
Thomas Petazzoni wrote,

> Hello Dario,
> 
> On Sun, 22 Sep 2024 11:23:03 +0200
> Dario Binacchi <dario.binacchi@amarulasolutions.com> wrote:
> 
> > Dario Binacchi (1):
> >   configs/stm32f746_disco_sd: new defconfig
> 
> Aside from this defconfig, it would be really nice to have a defconfig
> that allows to test ARM noMMU (both FLAT and FDPIC) with Qemu. Could
> you, and perhaps Waldemar, check what the options are? I had a quick
> look, and it doesn't seem obvious which ARM noMMU platform supported by
> Qemu is also supported by Linux. I vaguely remember at some point that
> the versatile (or vexpress?) platforms allowed to boot a noMMU system,
> but I'm not 100% sure.

There is versatile which can boot ARM noMMU FLAT, which was removed
by Buildroot in 9c5c3fbb2295f3f2b0bb27ac235d5f59afcfd55e, because it
requires Kernel patches. This defconfig is not capable of running
FDPIC Binaries because of some missing features regarding NPTL.

There is still no Cortex-M system emulation we could use for testing
both.

So a no go.

best regards
 Waldemar
 
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      reply	other threads:[~2024-09-22 15:36 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-09-22  9:23 [Buildroot] [PATCH v2 0/9] add ARM FDPIC support Dario Binacchi
2024-09-22  9:23 ` [Buildroot] [PATCH v2 1/9] Revert: "arch: drop now useless support for FDPIC" Dario Binacchi
2024-09-22  9:23 ` [Buildroot] [PATCH v2 2/9] arch: don't enable FDPIC binaries by default Dario Binacchi
2024-09-22  9:23 ` [Buildroot] [PATCH v2 3/9] arch: make FDPIC dependent on toolchain support Dario Binacchi
2024-09-22 10:06   ` Thomas Petazzoni via buildroot
2024-09-22  9:23 ` [Buildroot] [PATCH v2 4/9] arch/arm: add support for FDPIC Dario Binacchi
2024-09-22 10:08   ` Thomas Petazzoni via buildroot
2024-09-22  9:23 ` [Buildroot] [PATCH v2 5/9] boot/uboot: pass -mno-fdpic if FDPIC is enabled Dario Binacchi
2024-09-22 10:10   ` Thomas Petazzoni via buildroot
2024-09-22  9:23 ` [Buildroot] [PATCH v2 6/9] linux: " Dario Binacchi
2024-09-22  9:23 ` [Buildroot] [PATCH v2 7/9] package/uclibc: enable NPTL on no-MMU ARM w/ FDPIC Dario Binacchi
2024-09-22  9:23 ` [Buildroot] [PATCH v2 8/9] package/busybox: remove STATIC from busybox-minimal.config Dario Binacchi
2024-09-22  9:23 ` [Buildroot] [PATCH v2 9/9] configs/stm32f746_disco_sd: new defconfig Dario Binacchi
2024-09-22 10:14 ` [Buildroot] [PATCH v2 0/9] add ARM FDPIC support Thomas Petazzoni via buildroot
2024-09-22 15:36   ` Waldemar Brodkorb [this message]

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