_CPU_Context_switch_to_first_task_smp() branches to done_flushing which requires o3 to be initalized with "self per-CPU control", this adds initialization of o3. This problem only affects SMP, see commit f8ad6c6f7f8b591e were usage of o3 was intruduced. --- c/src/lib/libbsp/sparc/shared/irq_asm.S | 1 + 1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/c/src/lib/libbsp/sparc/shared/irq_asm.S b/c/src/lib/libbsp/sparc/shared/irq_asm.S index ce276cd..d67ed6c 100644 --- a/c/src/lib/libbsp/sparc/shared/irq_asm.S +++ b/c/src/lib/libbsp/sparc/shared/irq_asm.S @@ -265,6 +265,7 @@ SYM(_CPU_Context_switch_to_first_task_smp): and %g1, SPARC_NUMBER_OF_REGISTER_WINDOWS - 1, %g3 nop mov %o0, %o1 ! in the delay slot + GET_SELF_CPU_CONTROL %o3, %o4 ba,a done_flushing #endif -- 1.7.0.4 _______________________________________________ rtems-devel mailing list rtems-devel@rtems.org http://www.rtems.org/mailman/listinfo/rtems-devel