kgdb_roundup_cpus — Get other CPUs into a holding pattern
void kgdb_roundup_cpus ( | unsigned long flags); |
On SMP systems, we need to get the attention of the other CPUs
and get them into a known state. This should do what is needed
to get the other CPUs to call kgdb_wait. Note that on some arches,
the NMI approach is not used for rounding up all the CPUs. For example,
in case of MIPS, smp_call_function is used to roundup CPUs. In
this case, we have to make sure that interrupts are enabled before
calling smp_call_function. The argument to this function is
the flags that will be used when restoring the interrupts. There is
local_irq_save call before kgdb_roundup_cpus.
On non-SMP systems, this is not called.