On 2022-03-07 16:58, Tom Tromey wrote:
>> "Stefan" == Stefan Hajnoczi writes:
>
> Stefan> I hoped that "select-frame address ADDRESS" could be used instead so
> Stefan> this would work on coredumps too. Unfortunately "select-frame" only
> Stefan> searches stack frames that GDB is already awar
On 2022-03-03 11:22, Stefan Hajnoczi wrote:
> Hi,
> The QEMU emulator uses coroutines with separate stacks. It can be
> challenging to debug coroutines that have yielded because GDB is not
> aware of them (no thread is currently executing them).
>
> QEMU has a GDB Python script that helps. It "cre
he "frame" command:
https://sourceware.org/ml/gdb-patches/2015-09/msg00248.html
Follow the urls there for more background.
To me, the important questions to answer are here:
https://sourceware.org/ml/gdb-patches/2015-09/msg00658.html
Unfortunately, I don't think the series moved past that point.
Thanks,
Pedro Alves
while the infcall is running if you call a function of
the "wrong" mode, etc.) I believe the MIPS 64-bit gdb port actually
works that way - it always transfers 64-bit registers across the
wire, and then gdb presents 32-bit registers to debugging an elf
of a 32-bit ABI. I think it'
es make the implementation of the stub easier.
That gdb doc simplification is in master now, and live at the same url.
> thanks a lot for your prompt and detailed reply!
Np! Thank you too.
--
Pedro Alves
On 10/28/2016 02:35 PM, Claudio Imbrenda wrote:
> On 27/10/16 13:40, Pedro Alves wrote:
>> I'm not a qemu gdbstub expert, but FYI, seeing this reminded me to push
>> to gdb's master a (getting old) gdb patch that clarifies how vCont actions
>> should be interpreted
27;s already live at:
https://sourceware.org/gdb/current/onlinedocs/gdb/Packets.html
(The "already running" case is for non-stop mode, which qemu
probably doesn't support.)
Thanks,
Pedro Alves
On 02/07/2015 08:38 AM, Jan Kiszka wrote:
> This addresses the review comments on the previews two patches to add
> qAttached support. No longer trivial, so maybe you can pick it up,
> Peter.
Excellent, thanks for doing this Jan. Looks good to me.
Thanks,
Pedro Alves
"Attached") == 0 || strncmp(p, "Attached:", 9) == 0) {
Likewise other packets, if they have the same issue.
(I'm not familiar with qemu's stub's internals.)
Thanks,
Pedro Alves
work, except that some versions of QEMU (Eg: QEMU 2.0.0 for SPARC) just
> + report a fatal problem (Trap 0x02 while interrupts disabled, Error
> state)
> + intead of reporting a SIGTRAP. QEMU should probably be fixed, but in
"intead"
> + the interest of compatibility with versions that behave this way, we
> always
> + consider bp_call_dummy breakpoint locations as non-permanent. */
> + if (loc->owner->type == bp_call_dummy)
> +return 0;
> +
>addr = loc->address;
>bpoint = gdbarch_breakpoint_from_pc (loc->gdbarch, &addr, &len);
Patch is OK. Thanks Joel.
Thanks,
Pedro Alves
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