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-rw-r--r--arch/x86_64/hal/obj.c15
-rw-r--r--arch/x86_64/hal/obj.h11
-rw-r--r--arch/x86_64/sys/init.c1
-rw-r--r--arch/x86_64/sys/link.c19
4 files changed, 30 insertions, 16 deletions
diff --git a/arch/x86_64/hal/obj.c b/arch/x86_64/hal/obj.c
index 8011347..c5d5c69 100644
--- a/arch/x86_64/hal/obj.c
+++ b/arch/x86_64/hal/obj.c
@@ -3,6 +3,7 @@
#include "paging.h"
#include "hal/obj.h"
#include "jove.h"
+#include "sys/link.h"
jove_owned_obj_t*
obj_take(jove_obj_t *obj)
@@ -20,7 +21,7 @@ obj_release(jove_owned_obj_t *obj)
if((uintptr_t)obj < IDENT_VIRT_BASE) {
reterr(EBADOBJ);
}
- release_mutex((atomic_flag*)&obj->lock);
+ release_mutex((atomic_flag*)&obj->locked.lock);
return (jove_obj_t*)obj;
}
@@ -33,25 +34,25 @@ obj_deref(jove_owned_obj_t *obj)
uint8_t
obj_gettype(jove_owned_obj_t *obj)
{
- return obj->type;
+ return obj->locked.type;
}
void
obj_settype(jove_owned_obj_t *obj, uint8_t type)
{
- obj->type = type;
+ obj->locked.type = type;
}
uintmax_t
obj_getvalue(jove_owned_obj_t *obj)
{
- return obj->value;
+ return obj->locked.value;
}
void
obj_setvalue(jove_owned_obj_t *obj, uintmax_t value)
{
- obj->value = value & 0x00007FFFFFFFFFFFULL;
+ obj->locked.value = value & 0x00007FFFFFFFFFFFULL;
}
jove_owned_obj_t*
@@ -59,14 +60,14 @@ objdir_getlocal(
jove_owned_obj_t *objdir_obj,
uint16_t entry)
{
- if(objdir_obj->type != JOVE_OBJ_OBJDIR) {
+ if(obj_gettype_linked(objdir_obj) != JOVE_OBJ_OBJDIR) {
reterr(EBADOBJ);
}
if(entry >= JOVE_OBJDIR_ENTRIES) {
reterr(EOOB);
}
- jove_objdir_t *objtab = obj_deref(objdir_obj);
+ jove_objdir_t *objtab = obj_deref_linked(objdir_obj);
return obj_take(&objtab->entries[entry]);
}
diff --git a/arch/x86_64/hal/obj.h b/arch/x86_64/hal/obj.h
index 78d7383..fcb7506 100644
--- a/arch/x86_64/hal/obj.h
+++ b/arch/x86_64/hal/obj.h
@@ -7,7 +7,7 @@
enum
{
- JOVE_OBJ_SERIAL_COM = 0x80,
+ JOVE_OBJ_SERIAL_COM = 0x40,
};
/*Represents a locked kernel object pointer inside of a object directory.*/
@@ -25,14 +25,9 @@ typedef union jove_obj
/*Represents an unlocked kernel object pointer.
*This object should only exist temporarily while accessing the underlying
*structure this object points to.*/
-typedef union jove_obj_locked
+typedef struct jove_locked_obj
{
- struct {
- uint8_t type;
- uint8_t lock;
- uint64_t value : 48;
- };
- uintmax_t data;
+ jove_obj_t locked;
} jove_owned_obj_t;
/*Object directories are always 1 page wide. Since an object inside the directory
diff --git a/arch/x86_64/sys/init.c b/arch/x86_64/sys/init.c
index cecca32..681ba09 100644
--- a/arch/x86_64/sys/init.c
+++ b/arch/x86_64/sys/init.c
@@ -134,7 +134,6 @@ init_setup(void)
}
//Copy data from section if SHT_PROGBITS
- kprintf("init: load %p : %p\n", base, limit);
memcpy((void*)phdr->p_vaddr, init_data + phdr->p_offset, phdr->p_memsz);
}
diff --git a/arch/x86_64/sys/link.c b/arch/x86_64/sys/link.c
new file mode 100644
index 0000000..96f8eeb
--- /dev/null
+++ b/arch/x86_64/sys/link.c
@@ -0,0 +1,19 @@
+#include "sys/link.h"
+
+jove_obj_t
+link_unlink(jove_owned_obj_t *link)
+{
+ struct obj_link *linkval = obj_deref(link);
+ if(--linkval->refcount == 1) {
+ jove_obj_t held_obj = linkval->obj;
+ link->locked = held_obj;
+ return (jove_obj_t) {
+ .lock = 0,
+ .type = JOVE_OBJ_UNTYPED,
+ .value = (uintptr_t)linkval
+ };
+ }else{
+ obj_settype(link, JOVE_OBJ_NONE);
+ }
+ return (jove_obj_t) { 0 };
+}