less buggy fork

+ Not strictly done yet, but we can swap between two processes :D

2 files changed, 18 insertions, 0 deletions

diff --git a/include/apos/vmem.h b/include/apos/vmem.h
index 862af44..1e481fa 100644
--- a/include/apos/vmem.h
+++ b/include/apos/vmem.h
@@ -114,6 +114,16 @@ stat_t init_uvmem(struct tcb *r, vm_t base, vm_t top);
  */
 stat_t destroy_uvmem(struct tcb *r);
 
+/**
+ * Clone process memory.
+ *
+ * @param d Destination tcb.
+ * @param s Source tcb.
+ * @return OK.
+ *
+ * @todo Come up with better name. clone_uvmem() is taken, but should it be
+ * renamed to clone_mapping() or something?
+ */
 stat_t clone_mem_regions(struct tcb *d, struct tcb *s);
 
 /**
diff --git a/include/arch/proc.h b/include/arch/proc.h
index a64f978..e2b99ea 100644
--- a/include/arch/proc.h
+++ b/include/arch/proc.h
@@ -67,6 +67,14 @@ void save_regs(struct tcb *t, void *p);
 void load_regs(void *p, struct tcb *t);
 
 /**
+ * Copy registers from one thread to another. Used by \ref fork(), for example.
+ *
+ * @param d Destination.
+ * @param s Source.
+ */
+void clone_regs(struct tcb *d, struct tcb *s);
+
+/**
  * Do modifications to \ref tcb state if necessary for ipis to work.
  *
  * @param t Thread to do modifications to.