Hexagon: improve output for arch version debugging

[PATCH 0/2] Hexagon: improve output for arch version debugging

Matheus Tavares Bernardino posted 2 patches 1 year ago

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Failed in applying to current master (apply log)

Maintainers: Taylor Simpson <tsimpson@quicinc.com>, Laurent Vivier <laurent@vivier.eu>

linux-user/hexagon/target_elf.h |  7 ++++++-
target/hexagon/cpu.h            |  3 +++
target/hexagon/cpu.c            | 20 ++++++++++++++++++++
3 files changed, 29 insertions(+), 1 deletion(-)

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[PATCH 0/2] Hexagon: improve output for arch version debugging

Posted by Matheus Tavares Bernardino 1 year ago

If we run qemu with an Hexagon binary compiled to an arch version that
is higher than the threshold modeled by qemu, we will get the following
error:

    qemu-hexagon: unable to find CPU model 'unknown'

This can be confusing ("Was qemu unable to read the arch version from
this binary? Or did it read but does not know such version?").

And running `qemu-hexagon -cpu help` doesn't help either, as it just
errors out with no output. This patchset tries to improve this process.

https://lore.kernel.org/qemu-devel/cover.1673616964.git.quic_mathbern@quicinc.com/

Matheus Tavares Bernardino (2):
  Hexagon: list available CPUs with `-cpu help`
  Hexagon: append eflags to unknown cpu model string

 linux-user/hexagon/target_elf.h |  7 ++++++-
 target/hexagon/cpu.h            |  3 +++
 target/hexagon/cpu.c            | 20 ++++++++++++++++++++
 3 files changed, 29 insertions(+), 1 deletion(-)

-- 
2.37.2

RE: [PATCH 0/2] Hexagon: improve output for arch version debugging

Posted by Taylor Simpson 12 months ago


> -----Original Message-----
> From: Matheus Tavares Bernardino <quic_mathbern@quicinc.com>
> Sent: Thursday, May 4, 2023 1:53 PM
> To: qemu-devel@nongnu.org
> Cc: Brian Cain <bcain@quicinc.com>; Taylor Simpson
> <tsimpson@quicinc.com>
> Subject: [PATCH 0/2] Hexagon: improve output for arch version debugging
> 
> If we run qemu with an Hexagon binary compiled to an arch version that is
> higher than the threshold modeled by qemu, we will get the following
> error:
> 
>     qemu-hexagon: unable to find CPU model 'unknown'
> 
> This can be confusing ("Was qemu unable to read the arch version from this
> binary? Or did it read but does not know such version?").
> 
> And running `qemu-hexagon -cpu help` doesn't help either, as it just errors
> out with no output. This patchset tries to improve this process.
> 
> https://lore.kernel.org/qemu-
> devel/cover.1673616964.git.quic_mathbern@quicinc.com/
> 
> Matheus Tavares Bernardino (2):
>   Hexagon: list available CPUs with `-cpu help`
>   Hexagon: append eflags to unknown cpu model string
> 
>  linux-user/hexagon/target_elf.h |  7 ++++++-
>  target/hexagon/cpu.h            |  3 +++
>  target/hexagon/cpu.c            | 20 ++++++++++++++++++++
>  3 files changed, 29 insertions(+), 1 deletion(-)

Queued for next Hexagon PR

Thanks,
Taylor