On 14/09/2018 10:13, Joel Sherrill wrote: > On Thu, Sep 13, 2018, 5:40 PM Chris Johns <chr...@rtems.org > <mailto:chr...@rtems.org>> wrote: > On 14/09/2018 02:30, Joel Sherrill wrote: > > On Thu, Sep 13, 2018, 10:34 AM Sebastian Huber > > <sebastian.hu...@embedded-brains.de > <mailto:sebastian.hu...@embedded-brains.de> > <mailto:sebastian.hu...@embedded-brains.de > <mailto:sebastian.hu...@embedded-brains.de>>> > > wrote: > > ----- Am 13. Sep 2018 um 14:07 schrieb joel j...@rtems.org > <mailto:j...@rtems.org> > > <mailto:j...@rtems.org <mailto:j...@rtems.org>>: > > > > > On Thu, Sep 13, 2018, 3:28 AM Sebastian Huber < > > > sebastian.hu...@embedded-brains.de > <mailto:sebastian.hu...@embedded-brains.de> > > <mailto:sebastian.hu...@embedded-brains.de > <mailto:sebastian.hu...@embedded-brains.de>>> wrote: > > > > > >> Hello, > > >> > > >> I test currently the tqm8xx BSP which worked fine until RTEMS 5. > The > > >> problem is that this BSP uses strtoul() to get some system > configuration > > >> parameters from the boot loader. The Newlib used by RTEMS 5 has > now > > >> support for C locales in strtoul(). The C locale support needs an > > >> executing thread with a valid Newlib reentrancy structure. This > is > > >> definitely not the case during bsp_start(). > > >> > > > > > > Why do we now longer have a global reentrancy structure to fall > back on? > > > > I think having a global reentrancy as a fall back just for the > lowest > level > > system start without an idle thread is a bit of overkill. > > > > The heavy weight C local support which was recently introduced in > Newlib is > > not really the right thing for the embedded systems I know. There > were > > several complaints about this on the Newlib mailing list as well. > The > root > > cause for this is the C standard. So, basically the C standard > strtoul() is > > unsuitable for embedded systems. The FreeBSD (sys/kern/strtoul.c) > and > Linux > > (lib/kstrtox.c) kernel have their own implementations. > > > > > > FWIW the FACE Technical Standard does not include wide characters in ANY > profile > > as of Edition 3.0. None of the RTOS vendors knew of any avionics users. > It > > wasn't viewed as a necessary feature. We could consider disabling it by > default. > > > > Is this something we could ot would want to control with newlib via a > config > option? > > > We don't turn on locale for h8, m32c and maybe not epiphany. I am pretty > sure.it > <http://sure.it> is an option. And should be a documented RSB option to turn > it > back on. Should be a size savings for most users.
We turn on or off as an option? Chris _______________________________________________ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel
