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Date: Wed, 1 Jan 2014 13:27:50 +0400
From: Antony Pavlov <antonynpavlov@gmail.com>
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Subject: Re: [Qemu-devel] Debugging bootloader with gdb in qemu
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To: Maryyam Muhammad Din <maryyam35@gmail.com>
Cc: awaheed777@yahoo.com, qemu-devel@nongnu.org, qemu-discuss@nongnu.org

On Wed, 1 Jan 2014 12:55:38 +0500
Maryyam Muhammad Din <maryyam35@gmail.com> wrote:

> I am trying to debug bootloader with gdb in QEMU. I run QEMU command like
> this
>=20
> ./qemu-system-mips64 -s -S -m 1024 -M  octeon  -bios
> u-boot-octeon_ebh5610.bin  -kernel vmlinux.64 -append 'coremask=3D001 mem=
=3D0
> root=3D/dev/sda2'
>=20
> and then connect gdb using
>=20
> mips64-octeon-linux-gnu-gdb u-boot-octeon_ebh5610
> target remote localhost:1234
>=20
> when i try to step into bootloader code, it continues execution without
> breaking. This totally skip the bootloader code which i want to examine
> step by step as it execute.
> Can anyone suggest, what do i need to do to resolve this issue.

See this screencast:

  http://dir.tftpd.net:7080/~antony/mips-barebox-qemu-gdb-howto-20131219.avi

This screencast will show you how to trace bootloader (barebox, http://www.=
barebox.org)
for MIPS malta using qemu and gdb.

> Thank You
> --=20
> Maryyam Muhammad Din
> Al-Khawarizmi Institute of Computer Science
> UET Lahore


--=20
--=A0
Best regards,
=A0 Antony Pavlov