Exists a user function executed before C++ class object initialization?
sebastian.huber at embedded-brains.de
Tue May 2 05:53:29 UTC 2017
On 25/04/17 14:56, Jan.Sommer at dlr.de wrote:
> We would like to operate the Leon3 FPU in non-standard mode to avoid traps with denormalized numbers and set the corresponding NS bit in the fsr in the init task.
> As it turns out this is too late because the rtems tasks are created before that in the constructors of global C++ classes.
> That means after the init task is done, the context restore function of RTEMS will restore the fsr of the tasks without the NS bit set.
> Is there a service hook which I could register to set this bit before global class objects are initialized?
You can use a constructor function with priority, e.g.
void __attribute__((__constructor__(0))) foo(void)
/* Some stuff */
Sebastian Huber, embedded brains GmbH
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