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Re: usermode gdb / remote gdb

To: Ian Soanes <>, Linux/MIPS <>
Subject: Re: usermode gdb / remote gdb
From: Michael Shmulevich <>
Date: Wed, 25 Apr 2001 13:31:49 +0300
Organization: Jungo LTD
References: <> <>
User-agent: Mozilla/5.0 (X11; U; Linux 2.2.17-21mdk i686; en-US; 0.8.1) Gecko/20010326

Ian Soanes wrote:

The (host side) gdb I've been using was configured with ./configure
--target=mipsel-linux-elf (my target is an IDT MIPS 79S334 evaluation
board). I too am using an x86 host. I used a development version of
gdb-5.0 (I found the 'official' 5.0 had problems with the
add-symbol-file command that I use for kernel module debugging, and more
importantly for you... breakpoints didn't work) These problems are gone
in the later version.

To start with, mips-linux-elf is not supported by gdbserver either with out-of-the-box 5.0:

$ ../../configure --target=mips-linux-elf --host=mips-linux-elf
*** ./ has no "per-host:" line.
*** Hmm, looks like this directory has been autoconfiscated.
*** Running the local configure script.
loading cache config.cache
checking host system type... mips-linux-elf
checking target system type... mips-linux-elf
checking build system type... mips-linux-elf
checking for a BSD compatible install... (cached) /usr/bin/install -c
configure: error: *** GDB remote does not support host mips-linux-elf

Can you tell me which sources do you use?

Yesterday I got gdbserver working correctly on my target (over IP or
serial). It's a combination of Martin Rivers' mips port and my 'fixes'.
At this stage the build is hand cranked and neither of us have put it
under the control of the gdb configuration files. However, we (lineo)
will now start doing this.

Happy to hear that you got working GDB. I hope to make one too. For this I need to know where to get the MIPS port and your patches.
Can you send them to me?

I hope this helps in some way. Please let me know if there is anything I
can help with. It might also be worth contacting Fabrice, as it sounds
like he has a working gdb and gdbserver.

These are indeed good news.

Sincerely yours,
Michael Shmulevich
Software Developer
Jungo - R&D
Phone: 1-877-514-0537(USA)  +972-9-8859365(Worldwide) ext. 233
Fax:   1-877-514-0538(USA)  +972-9-8859366(Worldwide)

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