printf/vsnprintf crashes while printing float values

[zhongcai.guo@qkmtech.com]

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: zhongcai.guo@qkmtech.com

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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 <newlib@sourceware.org> 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: zhongcai.guo@qkmtech.com

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