#include "proc_p.h"
#include "proc.h"
+#include "cfg/cfg_proc.h"
+#define LOG_LEVEL KERN_LOG_LEVEL
+#define LOG_FORMAT KERN_LOG_FORMAT
+#include <cfg/log.h>
+
#include "cfg/cfg_arch.h" // ARCH_EMUL
-#include "cfg/cfg_kern.h"
+#include "cfg/cfg_monitor.h"
#include <cfg/macros.h> // ROUND_UP2
#include <cfg/module.h>
#include <cfg/depend.h> // CONFIG_DEPEND()
#include <string.h> /* memset() */
-// Check config dependencies
-CONFIG_DEPEND(CONFIG_KERN_SIGNALS, CONFIG_KERN_SCHED);
-CONFIG_DEPEND(CONFIG_KERN_SEMAPHORES, CONFIG_KERN_SIGNALS);
-CONFIG_DEPEND(CONFIG_KERN_MONITOR, CONFIG_KERN_SCHED);
-
-
/*
* The scheduer tracks ready processes by enqueuing them in the
* ready list.
/**
* Create a new process, starting at the provided entry point.
*
+ *
+ * \note The function
+ * \code
+ * proc_new(entry, data, stacksize, stack)
+ * \endcode
+ * is a more convenient way to create a process, as you don't have to specify
+ * the name.
+ *
* \return Process structure of new created process
* if successful, NULL otherwise.
*/
#if CONFIG_KERN_HEAP
bool free_stack = false;
#endif
- TRACEMSG("name=%s", name);
+ LOG_INFO("name=%s", name);
#if (ARCH & ARCH_EMUL)
/* Ignore stack provided by caller and use the large enough default instead. */
PROC_ATOMIC(stack_base = (cpu_stack_t *)list_remHead(&StackFreeList));
ASSERT(stack_base);
- stack_size = CONFIG_KERN_MINSTACKSIZE;
+ stack_size = KERN_MINSTACKSIZE;
#elif CONFIG_KERN_HEAP
/* Did the caller provide a stack for us? */
if (!stack_base)
{
/* Did the caller specify the desired stack size? */
if (!stack_size)
- stack_size = CONFIG_KERN_MINSTACKSIZE;
+ stack_size = KERN_MINSTACKSIZE;
/* Allocate stack dinamically */
if (!(stack_base = heap_alloc(stack_size)))
{
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();
- //TODO: re-enqueue process
- //pric_permit();
+ proc_forbid();
+ ATOMIC(sched_reenqueue(proc));
+ proc_permit();
}
}
#endif // CONFIG_KERN_PRI
*/
void proc_exit(void)
{
- TRACEMSG("%p:%s", CurrentProcess, proc_currentName());
+ LOG_INFO("%p:%s", CurrentProcess, proc_currentName());
#if CONFIG_KERN_MONITOR
monitor_remove(CurrentProcess);