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Re: gdb for mips64

To: David Daney <ddaney@caviumnetworks.com>
Subject: Re: gdb for mips64
From: Camm Maguire <camm@maguirefamily.org>
Date: Tue, 26 Oct 2010 10:47:08 -0400
Cc: debian-mips@lists.debian.org, Frederick Isaac <freddyisaac@gmail.com>, gcl-devel@gnu.org, linux-mips <linux-mips@linux-mips.org>
In-reply-to: <4CC5FA72.6080005@caviumnetworks.com> (David Daney's message of "Mon\, 25 Oct 2010 14\:45\:22 -0700")
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Greetings!

David Daney <ddaney@caviumnetworks.com> writes:

> On 10/25/2010 02:32 PM, Camm Maguire wrote:
>> Greetings!  Can gdb be made to work on mips64?
>>
>
> You have to have a 64-bit toolchain.
>
> Then something like this (untested):
>
> CC='mips64-linux-gnu -mabi=64' configure --host=mips64-linux
> --target=mips64-linux.
>
> I don't think a 32-bit gdb can debug 64-bit processes :-(.
>

Thanks.

Why doesn't _IO_getc get a stub on mips64, like say _setjmp?

readelf -a saved_ansi_gcl |grep  IO_getc
  2812: 0000000000000000   472 FUNC    GLOBAL DEFAULT  UND _IO_getc@GLIBC_2.0 
(2)
 15315: 0000000000000000   472 FUNC    GLOBAL DEFAULT  UND _IO_getc@@GLIBC_2.0
readelf -a saved_ansi_gcl |grep  setjmp
  2159: 00000001204b9b40    32 FUNC    GLOBAL DEFAULT  UND _setjmp@GLIBC_2.0 (2)
 15978: 00000001204b9b40    32 FUNC    GLOBAL DEFAULT  UND _setjmp@@GLIBC_2.0
 
Is there anything I can do about this?

Take care,

> David Daney
>
>
>> (gdb) r
>> Starting program: /home/camm/gcl-2.6.8pre/unixport/saved_pre_gcl
>> /home/wingsun/develop/build/gdb/gdb-6.8/gdb/mips-tdep.c:603: internal-error: 
>> bad register size
>> A problem internal to GDB has been detected,
>> further debugging may prove unreliable.
>>
>> Take care,
>
>
>
>
>

-- 
Camm Maguire                                        camm@maguirefamily.org
==========================================================================
"The earth is but one country, and mankind its citizens."  --  Baha'u'llah

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