From cf9135829836c85735b383f7c50f34232bea94f9 Mon Sep 17 00:00:00 2001
From: Marvin Borner
Date: Tue, 2 Jun 2020 23:10:27 +0200
Subject: Much work on the ELF parser and userspace jumping

---
 src/kernel/tasks/userspace.c | 59 --------------------------------------------
 1 file changed, 59 deletions(-)
 delete mode 100644 src/kernel/tasks/userspace.c

(limited to 'src/kernel/tasks/userspace.c')

diff --git a/src/kernel/tasks/userspace.c b/src/kernel/tasks/userspace.c
deleted file mode 100644
index 3164965..0000000
--- a/src/kernel/tasks/userspace.c
+++ /dev/null
@@ -1,59 +0,0 @@
-#include <interrupts/interrupts.h>
-#include <io/io.h>
-#include <lib/lib.h>
-#include <memory/paging.h>
-#include <stddef.h>
-#include <stdint.h>
-#include <system.h>
-#include <tasks/process.h>
-#include <tasks/userspace.h>
-
-struct process *proc_bottom = NULL;
-
-u32 hl_cr3;
-u32 hl_eip;
-u32 hl_esp;
-
-u32 spawn_child(struct process *child)
-{
-	return (u32)-1;
-}
-
-void userspace_enter(struct process *proc)
-{
-	proc_bottom = proc;
-	hl_eip = proc->registers.eip;
-	hl_esp = proc->registers.esp;
-	paging_switch_directory(proc->cr3);
-
-	//debug("Jumping to userspace!");
-	jump_userspace();
-}
-
-void single_yield(struct process *proc, struct regs *regs)
-{
-	memcpy(&proc_bottom->registers, regs, sizeof(struct regs));
-
-	if (proc == proc_bottom)
-		panic("Can't return from parent process");
-
-	proc->next = proc_bottom;
-	proc_bottom = proc;
-
-	memcpy(regs, &proc->registers, sizeof(struct regs));
-	paging_switch_directory(proc->cr3);
-}
-
-u32 single_exit(struct regs *regs)
-{
-	u32 hold = regs->ebx;
-	proc_bottom = proc_bottom->next;
-
-	if (proc_bottom == NULL)
-		panic("Return from process with no parent");
-
-	memcpy(regs, &proc_bottom->registers, sizeof(struct regs));
-	paging_switch_directory(proc_bottom->cr3);
-
-	return hold;
-}
\ No newline at end of file
-- 
cgit v1.2.3