{
proc = (Process *)stack_base;
proc->stack = stack_base + PROC_SIZE_WORDS;
+ // On some architecture stack should be aligned, so we do it.
+ proc->stack = (cpu_stack_t *)((uintptr_t)proc->stack + (sizeof(cpu_aligned_stack_t) - ((uintptr_t)proc->stack % sizeof(cpu_aligned_stack_t))));
if (CPU_SP_ON_EMPTY_SLOT)
proc->stack++;
}
else
{
proc = (Process *)(stack_base + stack_size / sizeof(cpu_stack_t) - PROC_SIZE_WORDS);
- proc->stack = (cpu_stack_t *)proc;
+ // On some architecture stack should be aligned, so we do it.
+ proc->stack = (cpu_stack_t *)((uintptr_t)proc - ((uintptr_t)proc % sizeof(cpu_aligned_stack_t)));
if (CPU_SP_ON_EMPTY_SLOT)
proc->stack--;
}
+ /* Ensure stack is aligned */
+ ASSERT((uintptr_t)proc->stack % sizeof(cpu_aligned_stack_t) == 0);
+ stack_size -= PROC_SIZE_WORDS * sizeof(cpu_stack_t);
proc_init_struct(proc);
proc->user_data = data;
getcontext(&proc->context);
proc->context.uc_stack.ss_sp = proc->stack;
- proc->context.uc_stack.ss_size = stack_size - PROC_SIZE_WORDS - 1;
+ proc->context.uc_stack.ss_size = stack_size - 1;
proc->context.uc_link = NULL;
makecontext(&proc->context, (void (*)(void))proc_entry, 1, entry);
#else // !CONFIG_KERN_PREEMPT
- {
- size_t i;
-
- /* Initialize process stack frame */
- CPU_PUSH_CALL_FRAME(proc->stack, proc_exit);
- CPU_PUSH_CALL_FRAME(proc->stack, entry);
-
- /* Push a clean set of CPU registers for asm_switch_context() */
- for (i = 0; i < CPU_SAVED_REGS_CNT; i++)
- CPU_PUSH_WORD(proc->stack, CPU_REG_INIT_VALUE(i));
- }
+
+ CPU_CREATE_NEW_STACK(proc->stack, entry, proc_exit);
+
#endif // CONFIG_KERN_PREEMPT
#if CONFIG_KERN_MONITOR
if (proc != CurrentProcess)
{
proc_forbid();
- ATOMIC(SCHED_CHANGE_PRI(proc));
+ ATOMIC(sched_reenqueue(proc));
proc_permit();
}
}