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Re: [Qemu-devel] [PATCH] tcg: Optionally log FPU state in TCG -d cpu log
From: |
Philippe Mathieu-Daudé |
Subject: |
Re: [Qemu-devel] [PATCH] tcg: Optionally log FPU state in TCG -d cpu logging |
Date: |
Thu, 10 May 2018 14:57:12 -0300 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.7.0 |
On 05/10/2018 11:36 AM, Richard Henderson wrote:
> On 05/10/2018 06:00 AM, Peter Maydell wrote:
>> Usually the logging of the CPU state produced by -d cpu is sufficient
>> to diagnose problems, but sometimes you want to see the state of
>> the floating point registers as well. We don't want to enable that
>> by default as it adds a lot of extra data to the log; instead,
>> allow it to be optionally enabled via -d fpu.
>>
>> Signed-off-by: Peter Maydell <address@hidden>
>> ---
>> I've found this helpful while tracking down fp-emulation related bugs.
>>
>> include/qemu/log.h | 1 +
>> accel/tcg/cpu-exec.c | 9 ++++++---
>> util/log.c | 2 ++
>> 3 files changed, 9 insertions(+), 3 deletions(-)
>
> Reviewed-by: Richard Henderson <address@hidden>
>
> I'll also note that only i386 and arm check this flag;
> something to fix for the rest...
Indeed, this would reduce mips_cpu_dump_state() output.