proc.c

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#include <core/system.h>
#include <core/arch.h>
#include <core/panic.h>
#include <mm/pmap.h>
#include <sys/proc.h>
#include <sys/sched.h>
 
struct aarch64_thread *aarch64_thread_new(void);
 
/*
 * Sets up the architecture's part of init's thread, to start at its
 * program's entry point. Panics if there's no memory.
 */
void arch_proc_init(struct proc *proc)
{
    struct aarch64_thread *arch = aarch64_thread_new();
 
    if (!arch)
        panic("no memory for init's thread");
 
    arch->pc = proc->entry;
    arch->sp = USER_STACK;
 
    struct thread *thread = (struct thread *) proc->threads.head->value;
    thread->arch = arch;
}