From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
To: buildroot@busybox.net
Subject: [Buildroot] Illegal instruction when running some of the cross compiled binaries
Date: Tue, 11 Jan 2011 14:45:03 +0100 [thread overview]
Message-ID: <20110111144503.3bdf7fa4@surf> (raw)
In-Reply-To: <AANLkTi=0q8wUTjBSdVUv2KTVyxYc9NTSumE_+MrN4faf@mail.gmail.com>
Hello Divick,
On Tue, 11 Jan 2011 17:55:15 +0530
Divick Kishore <divick.kishore@gmail.com> wrote:
> I have built a custom root filesystem using build root, but
> certain binaries (built with the packages selected during menuconfig)
> when run give "Illegal Instruction".
>
> # sshd
> Illegal instruction
>
> Having looked at the logs, the compiler flags used to build the binary
> seems fine (-mtune=arm920t -march=armv4t -mabi=aapcs-linux
> -msoft-float ) i.e. right for my H/W (ATMEL AT91RM9200).
During compilation yes, but at the link stage of sshd, the
-march=armv4t flag is missing. Therefore, some ARMv5-only code gets
added to the binary. Maybe we need to add -march=armv4t to the
TARGET_LDFLAGS, or some other trick. I haven't tested anything for the
moment, so feel free to experiment.
Regards,
Thomas
--
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com
prev parent reply other threads:[~2011-01-11 13:45 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-11 12:25 [Buildroot] Illegal instruction when running some of the cross compiled binaries Divick Kishore
2011-01-11 13:45 ` Thomas Petazzoni [this message]
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