Changeset 5be1923 in mainline for generic/src/proc

Timestamp:

2006-03-14T12:11:28Z (20 years ago)

Author:

Ondrej Palkovsky <ondrap@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

d3e7ff4

Parents:

4bb4836d

Message:

Added simpler userspace starting.

File:

• generic/src/proc/task.c (modified) (4 diffs)

generic/src/proc/task.c

@@ -27 +27 @@
  */
 
+#include <main/uinit.h>
 #include <proc/thread.h>
 #include <proc/task.h>
@@ -39 +40 @@
 #include <ipc/ns.h>
 #include <memstr.h>
+
+#include <elf.h>
 
 SPINLOCK_INITIALIZE(tasks_lock);
@@ -60 +63 @@
  * @param as Task's address space.
  *
- * @return New task's structure on success, NULL on failure.
+ * @return New task's structure
  *
  */
@@ -89 +92 @@
 }
 
+/** Create new task with 1 thread and run it
+ *
+ * @return Task of the running program or NULL on error
+ */
+task_t * task_run_program(void *program_addr)
+{
+        as_t *as;
+        as_area_t *a;
+        int rc;
+        thread_t *t;
+        task_t *task;
+
+        as = as_create(0);
+
+        rc = elf_load((elf_header_t *) config.init_addr, as);
+        if (rc != EE_OK) {
+                as_free(as);
+                return NULL;
+        } 
+        
+        task = task_create(as);
+        t = thread_create(uinit, (void *)((elf_header_t *) config.init_addr)->e_entry, 
+                          task, THREAD_USER_STACK);
+        
+        /*
+         * Create the data as_area.
+         */
+        a = as_area_create(as, AS_AREA_STACK, 1, USTACK_ADDRESS);
+        
+        thread_ready(t);
+
+        return task;
+}