Re: printf/vsnprintf crashes while printing float values

If you are trying to use printf inside an interrupt handler, that is
likely a problem. That is likely an invalid context to try to use
routines like printf.

On 1/18/21 8:28 PM, zhongcai.guo--- via Newlib wrote:
> Thanks for your reply.
>
> It crashes in irq handler but not a thread. The irq handler is installed by rtems_interrupt_handler_install(). Can you show me how to set the floating point attrbute?
>
>
>
> Best regards
> Ceasar Guo
> MC
> Email: [email protected]
>
> This message may contain information that is confidential or privileged. If you are not the intended recipient, please advise the sender immediately and delete this message.
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>  
> From: Joel Sherrill
> Date: 2021-01-18 22:18
> To: zhongcai.guo
> CC: newlib
> Subject: Re: printf/vsnprintf crashes while printing float values
>
>
> On Mon, Jan 18, 2021, 3:51 AM zhongcai.guo--- via Newlib <[email protected]> wrote:
>
> Hi,
>
> I run RTEMS system on my Xilinx Zync7000 hardware but printf/vsnprintf crash my system in interrupt. I searched long time in Google, and it seems to be an issue in Newlib than RTEMS(i guess). Therefore i want to figure out whether it
> is a fixed issued in Newlib but don't get the place to search closed/fixed bug. So i have no idea but send the email to ask for help. Any hints about the issue would be appreciate.
>
> Does the thread doing the printing have the floating point attribute? Otherwise, the flu is disabled
>
> --joel
>
>
>
>
> Best regards
> Ceasar Guo
> 运控部 / MC
> Email: [email protected]
>
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-- 
Richard Damon