diff options
Diffstat (limited to 'src/core/scheduler.c')
| -rw-r--r-- | src/core/scheduler.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/src/core/scheduler.c b/src/core/scheduler.c index d046298..224c20d 100644 --- a/src/core/scheduler.c +++ b/src/core/scheduler.c @@ -123,19 +123,25 @@ void task_create(int *page_dir, void *task, int task_size, int stack_offset){ void scheduler_start(){ if(nproc>0){ + // Disable interrupt to not be interrupted asm("cli"); - scheduler_on=1; // Enable scheduling + // Enable scheduling + scheduler_on=1; + + // Save kernel stack state u32 *stack; asm("mov %%ebp, %0":"=r" (stack)); - TSS.esp0=(u32)stack+1; // Remove ebp (c call convention) + // Remove ebp from the (c call convention) and return address (call) + TSS.esp0=(u32)stack+2; asm("mov %%ss, %0": "=m" (TSS.ss0)); - current_id=1; + // Get first stack + current_id=0; PROC *p=&procs[current_id]; - // Ensure interrupts are activated and NT flag is clear p->regs.eflags|=0x200; p->regs.eflags&=0xffffbfff; + // Switch to user task asm( "push %0 \n\t" "jmp task_switch" |