Initial commit

tasks/mm0/include/task.h

@@ -0,0 +1,70 @@
+/*
+ * Thread control block.
+ *
+ * Copyright (C) 2007 Bahadir Balban
+ */
+#ifndef __TASK_H__
+#define __TASK_H__
+
+#include <l4/macros.h>
+#include <l4/types.h>
+#include INC_GLUE(memlayout.h)
+#include <l4/lib/list.h>
+#include <l4lib/types.h>
+#include <l4lib/utcb.h>
+
+#define __TASKNAME__		"mm0"
+
+/* Allow per-task anonymous memory to grow as much as 1 MB for now. */
+#define TASK_SWAPFILE_MAXSIZE				SZ_1MB
+
+struct vm_file;
+
+/* Stores all task information that can be kept in userspace. */
+struct tcb {
+	/* Task list */
+	struct list_head list;
+
+	/* Name of the task */
+	char name[16];
+
+	/* Task ids */
+	int tid;
+	int spid;
+
+	/* Related task ids */
+	unsigned int pagerid;	/* Task's pager */
+
+	/* Program segment marks */
+	unsigned long text_start;
+	unsigned long text_end;
+	unsigned long data_start;
+	unsigned long data_end;
+	unsigned long bss_start;
+	unsigned long bss_end;
+	unsigned long stack_start;
+	unsigned long stack_end;   /* Exclusive of last currently mapped page */
+	unsigned long heap_start;
+	unsigned long heap_end;    /* Exclusive of last currently mapped page */
+
+	/* Virtual memory areas */
+	struct list_head vm_area_list;
+
+	/* Per-task swap file for now */
+	struct vm_file *swap_file;
+
+	/* Pool to generate swap file offsets for fileless anonymous regions */
+	struct id_pool *swap_file_offset_pool;
+};
+
+struct tcb *find_task(int tid);
+
+struct initdata;
+void init_pm(struct initdata *initdata);
+int start_init_tasks(struct initdata *initdata);
+void dump_tasks(void);
+
+/* Used by servers that have a reference to tcbs (e.g. a pager) */
+#define current		((struct ktcb *)__L4_ARM_Utcb()->usr_handle)
+
+#endif /* __TASK_H__ */