thread support

thread support

[Jim Kleck]

We are working on an embedded target to add gdb support. We are using
insight 5.0. Everyting is going well except for one area: thread support.
I have been unable to figure out exactly what RSP packets are needed
and how to interpret them and their contents. In particular, it seems
that the gdb ThreadId is 1-based (when I return thrId = 0 for the "qC"
pkt, insight/gdb gets confused), whereas thread ids internal to the
target are 0-based. I have tried (external thrid = internal thrid + 1)
and this helped considerably but there are still problems. are there any
docs regarding this?

JimK

Re: thread support

[Fernando Nasser]

Jim Kleck wrote:
> 
> We are working on an embedded target to add gdb support. We are using
> insight 5.0. Everyting is going well except for one area: thread support.
> I have been unable to figure out exactly what RSP packets are needed
> and how to interpret them and their contents. In particular, it seems
> that the gdb ThreadId is 1-based (when I return thrId = 0 for the "qC"
> pkt, insight/gdb gets confused), whereas thread ids internal to the
> target are 0-based. I have tried (external thrid = internal thrid + 1)
> and this helped considerably but there are still problems. are there any
> docs regarding this?
> 

This is the list for Insight, the GUI to GDB.  There is a GDB proper list and some people there will know more about thread support:

    gdb@sources.redhat.com

You should post your message there.


-- 
Fernando Nasser
Red Hat - Toronto                       E-Mail:  fnasser@redhat.com
2323 Yonge Street, Suite #300
Toronto, Ontario   M4P 2C9

Thread support

[Judy Anderson]

I was interested to read about insight, and I tried downloading
insight-19990727, and running it.  Unfortunately, it does not seem to
have the Linux thread support that there is a patch for gdb 4.17
about ( http://www.gr.opengroup.org/java/jdk/linux/download/gdb-4.17.patch.gz ),
and I managed to make it core dump (or perhaps just exit abruptly)
when I attempted to use it to debug a threads program.  Is there any
plan to have thread support in insight?

					Judy Anderson "yduJ"
					yduJ@harlequin.com
					617-374-2547

Re: Thread support

[Jim Blandy]

> I was interested to read about insight, and I tried downloading
> insight-19990727, and running it.  Unfortunately, it does not seem to
> have the Linux thread support that there is a patch for gdb 4.17
> about ( http://www.gr.opengroup.org/java/jdk/linux/download/gdb-4.17.patch.gz ),
> and I managed to make it core dump (or perhaps just exit abruptly)
> when I attempted to use it to debug a threads program.  Is there any
> plan to have thread support in insight?

The thread support we did for Code Fusion has not yet been merged into
our main sources, from which the Insight snapshots are made.  Once it
is merged, Insight will support threads on Linux, to the extent that
Code Fusion does.