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still fighting an issue

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slinky55
2026-07-03 22:25:24 -05:00
parent 48df965268
commit ab5a1ecb6b
5 changed files with 18 additions and 22 deletions
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17
kernel/scheduler.c
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@@ -16,10 +16,7 @@ static process_t* process_table;
static int current_process = 0;
static int total_processes = 0;
#define IDLE_TASK_PID 1
static void idle_task() {
while (1) asm volatile("hlt");
}
#define IDLE_TASK_PID 0
static void lock_scheduler() {
disable_interrupts();
@@ -94,8 +91,6 @@ void init_scheduler() {
process->flags = PROCESS_FLAG_KERNEL;
total_processes++;
create_task((uint32_t)idle_task, fetch_cr3(), 0, 0);
current_process = 0;
}
@@ -131,15 +126,13 @@ int create_task(uint32_t entry_point, uint32_t cr3, int user, uint32_t u_esp) {
uint32_t* esp = (uint32_t*)kstack_top;
if (user) {
*(--esp) = 0x23; // User Data Segment (SS) with RPL 3 (0x20 | 3)
*(--esp) = u_esp; // User Stack Pointer (ESP) - location mapped in user space
*(--esp) = u_esp; // User Stack Pointer (ESP) - location mapped in user space
*(--esp) = 0x0202; // EFLAGS (Interrupts enabled)
*(--esp) = 0x1B; // User Code Segment (CS) with RPL 3 (0x18 | 3)
*(--esp) = entry_point; // EIP
*(--esp) = 0x23;
} else {
// IRET values for Ring 0
*(--esp) = 0x23; // User Data Segment (SS) with RPL 3 (0x20 | 3)
*(--esp) = kstack_top; // User Stack Pointer (ESP) - location mapped in user space
*(--esp) = 0x0202; // EFLAGS
*(--esp) = 0x08; // Kernel Code Segment (CS)
*(--esp) = entry_point; // EIP
@@ -155,12 +148,6 @@ int create_task(uint32_t entry_point, uint32_t cr3, int user, uint32_t u_esp) {
*(--esp) = 0; // ESI
*(--esp) = 0; // EDI
if (user) {
*(--esp) = 0x23; // User Data Segment
} else {
*(--esp) = 0x10; // Kernel Data Segment
}
process->esp = (uint32_t)esp;
if (!reuse) {
total_processes++;