Re: C library re-entrancy under Zephyr
Hi Rob - Went through this a few years back with FreeRTOS.
The link below may be helpful.
Hope that helps!
Best Regards, Dave
On 3/11/2021 1:04 PM, Rob Meades via lists.zephyrproject.org wrote:
Thanks for the swift response. That's a shame. I will go look at the PR at your link as shifting to the re-entrant versions just for Zephyr is going to be painful. Rob -----Original Message----- From: users@... <users@...> On Behalf Of Kumar Gala Sent: 11 March 2021 17:54 To: Rob Meades <Rob.Meades@...> Cc: users@... Subject: Re: [Zephyr-users] C library re-entrancy under Zephyr *** This is an EXTERNAL email. It was sent from outside of u-blox. *** Re-entrant support between newlib and zephyr is not currently supported. There’s an old PR on the subject https://github.com/zephyrproject-rtos/zephyr/pull/21518 - kOn Mar 11, 2021, at 11:51 AM, Rob Meades via lists.zephyrproject.org <Rob.Meades=u-blox.com@...> wrote: Should I expect C library functions (e.g. strtok()) under Zephyr to be re-entrant or must I call the re-entrant versions (i.e. in this case strtok_r())? I ask because I am building/running nRF52840 (cortex-m4) and strok() _appears_ to NOT be re-entrant: I'd like to understand if this is expected or if I've messed up a configuration somewhere. My prj.conf file is attached in case it is helpful in answering the question. Rob <prj.conf>
-- Dave Nadler, USA East Coast voice (978) 263-0097, drn@..., Skype Dave.Nadler1