Make copy_data a syscall

cpu/i386/address_spaces.c

@@ -1,6 +1,6 @@
 #include "paging.h"
 
-void copy_data(void* cr3, void* data,uint32_t size,void* virt_addr) {
+void address_spaces_copy_data(void* cr3, void* data,uint32_t size,void* virt_addr) {
   uint32_t old_cr3;
   asm volatile("movl %%cr3, %%eax; movl %%eax, %0;":"=m"(old_cr3)::"%eax");
   void* phys_addr=virt_to_phys(data);

cpu/i386/address_spaces.h

@@ -3,6 +3,6 @@
 
 #include <stdint.h>
 
-void copy_data(void* cr3, void* data,uint32_t size,void* virt_addr);
+void address_spaces_copy_data(void* cr3, void* data,uint32_t size,void* virt_addr);
 
 #endif

cpu/i386/isr.c

@@ -7,6 +7,7 @@
 #include "../../drivers/vga.h"
 #include "../tasking.h"
 #include "interrupt.h"
+#include "address_spaces.h"
 #include <string.h>
 #include <stdint.h>
 void irq_handler(registers_t r);
@@ -187,6 +188,8 @@ void isr_handler(registers_t r) {
         r.ebx=(uint32_t)paging_new_address_space();
       } else if (r.eax==9) {
         tasking_createTaskCr3((void*)r.ebx,(void*)r.ecx);
+      } else if (r.eax==10) {
+        address_spaces_copy_data((void*)r.ebx,(void*)r.ecx,r.edx,(void*)r.esi);
       }
     break;
     }

libc/memory.c

@@ -24,3 +24,16 @@ void* new_address_space() {
   ":"=b"(cr3));
   return cr3;
 }
+
+void copy_data(void* cr3, void* data,uint32_t size,void* virt_addr) {
+  asm volatile("  \
+    mov $10, %%eax; \
+    int $80; \
+  "::"b"(cr3),"c"(data),"d"(size),"S"(virt_addr));
+  // uint32_t old_cr3;
+  // asm volatile("movl %%cr3, %%eax; movl %%eax, %0;":"=m"(old_cr3)::"%eax");
+  // void* phys_addr=virt_to_phys(data);
+  // load_address_space(cr3);
+  // map_pages(virt_addr,phys_addr,(size/4096)+1,1,1);
+  // load_address_space(old_cr3);
+}

libc/memory.h

@@ -8,5 +8,6 @@
 void* alloc_memory(uint32_t num_pages);
 void alloc_memory_virt(uint32_t num_pages,void* addr);
 void* new_address_space();
+void copy_data(void* cr3, void* data,uint32_t size,void* virt_addr);
 
 #endif