syscall message unmaps upon invokemain

1 files changed, 13 insertions, 0 deletions

diff --git a/arch/x86_64/memory/page-mapping.c b/arch/x86_64/memory/page-mapping.c
index 0de5bfa..d4b4e98 100644
--- a/arch/x86_64/memory/page-mapping.c
+++ b/arch/x86_64/memory/page-mapping.c
@@ -1,6 +1,7 @@
 #include "arch/x86_64/page-mapping.h"
 #include "arch/x86_64/page.h"
 #include <stddef.h>
+#include "print.h"
 
 pmle_t*
 page_mapping_traverse(pmle_t *pml4, uint8_t depth, uint16_t *path)
@@ -13,3 +14,15 @@ page_mapping_traverse(pmle_t *pml4, uint8_t depth, uint16_t *path)
     if(!pmle->p) return NULL;
     return page_mapping_traverse(pmle_table, depth - 1, path + 1);
 }
+
+pmle_t*
+mem_mapping_vptr_mapping(pmle_t *pml4, uint8_t depth, uintptr_t vptr)
+{
+    uint64_t pathval = 0;
+    uint16_t *path = (uint16_t*)&pathval;
+
+    for(uint8_t i = 0; i < depth; i++) {
+        path[i] = PML_I_FOR_LAYER(vptr, 4 - i);
+    }
+    return page_mapping_traverse(pml4, depth - 1, path);
+}