Changeset 623 for trunk/kernel/kern/process.h

Timestamp:

Mar 6, 2019, 4:37:15 PM (5 years ago)

Author:

alain

Message:

Introduce three new types of vsegs (KCODE,KDATA,KDEV)
to map the kernel vsegs in the process VSL and GPT.
This now used by both the TSAR and the I86 architectures.

File:

• trunk/kernel/kern/process.h (modified) (4 diffs)

trunk/kernel/kern/process.h

@@ -73 +73 @@
  * is always stored in the same cluster as the inode associated to the file.
  * A free entry in this array contains the XPTR_NULL value.
- * The array size is defined by a the CONFIG_PROCESS_FILE_MAX_NR parameter.
+ * The array size is defined by the CONFIG_PROCESS_FILE_MAX_NR parameter.
  *
  * NOTE: - Only the fd_array[] in the reference process contains a complete list of open
@@ -79 +79 @@
  *       - the fd_array[] in a process copy is simply a cache containing a subset of the
  *         open files to speed the fdid to xptr translation, but the "lock" and "current
- *         fields should not be used.
+ *         fields are not used.
  *       - all modifications made by the process_fd_remove() are done in reference cluster
  *         and reported in all process_copies.
@@ -200 +200 @@
 
 /*********************************************************************************************
- * This function initialize, in each cluster, the kernel "process_zero", that is the owner
- * of all kernel threads in a given cluster. It is called by the kernel_init() function.
+ * This function initialize, in each cluster, the kernel "process_zero", that contains
+ * all kernel threads in a given cluster. It is called by the kernel_init() function.
  * The process_zero descriptor is allocated as a global variable in file kernel_init.c 
  * Both the PID and PPID fields are set to zero, the ref_xp is the local process_zero,
  * and the parent process is set to XPTR_NULL. The th_tbl[] is initialized as empty.
- *********************************************************************************************
- * @ process      : [in] pointer on local process descriptor to initialize.
- ********************************************************************************************/
-void process_zero_create( process_t * process );
+ * The process GPT is initialised as required by the target architecture.
+ * The "kcode" and "kdata" segments are registered in the process VSL.
+ *********************************************************************************************
+ * @ process  : [in] pointer on process descriptor to initialize.
+ * @ info     : pointer on local boot_info_t (for kernel segments base and size). 
+ ********************************************************************************************/
+void process_zero_create( process_t   * process,
+                          boot_info_t * info );
 
 /*********************************************************************************************
@@ -428 +432 @@
  * identified by the <process_xp> argument, register the <file_xp> argument in the
  * allocated slot, and return the slot index in the <fdid> buffer.
- * It can be called by any thread in any cluster, because it uses portable remote access
+ * It can be called by any thread in any cluster, because it uses remote access
  * primitives to access the reference process descriptor.
  * It takes the lock protecting the reference fd_array against concurrent accesses.