Changeset 457 for trunk/kernel/syscalls/syscalls.h

Timestamp:

Aug 2, 2018, 11:47:13 AM (6 years ago)

Author:

alain

Message:

This version modifies the exec syscall and fixes a large number of small bugs.
The version number has been updated (0.1)

File:

• trunk/kernel/syscalls/syscalls.h (modified) (5 diffs)

trunk/kernel/syscalls/syscalls.h

@@ -2 +2 @@
  * syscalls.h - Kernel side services for syscall handling.
  * 
- * Author     Alain Greiner (2016,2017)
+ * Author     Alain Greiner (2016,2017,2018)
  *
  * Copyright (c) UPMC Sorbonne Universites
@@ -25 +25 @@
 #define _SYSCALLS_H_
 
-#include <hal_types.h>
+#include <hal_kernel_types.h>
 #include <shared_syscalls.h>
 
@@ -116 +116 @@
  * and the code implementing the operations is in the remore_sem.c file.
  ******************************************************************************************
- * @ vaddr     : semaphore virtual address in user space == identifier.
- * @ operation : SEM_INIT / SEM_DESTROY / SEM_GETVALUE / SEM_POST / SEM_WAIT.
- * @ value     : pointer on in/out argument in user space.
+ * @ vaddr         : semaphore virtual address in user space == identifier.
+ * @ operation     : SEM_INIT / SEM_DESTROY / SEM_GETVALUE / SEM_POST / SEM_WAIT.
+ * @ init_value    : initial semaphore value.
+ * @ current_value : pointer on buffer for current semaphore value.
  * @ return 0 if success / return -1 if failure.
  *****************************************************************************************/
 int sys_sem( void       * vaddr,
              uint32_t     operation,
-             uint32_t   * value );
+             uint32_t     init_value,
+             uint32_t   * current_value );
 
 /****************************************************************************************** 
@@ -584 +586 @@
 
 /****************************************************************************************** 
+ * [44] TBD
+ ******************************************************************************************
+ * @ cxy    : cluster identifier.
+ * @ lid    : core local index.
+ * @ return 0 if success / return -1 if failure.
+ *****************************************************************************************/
+int sys_place( uint32_t cxy,
+               uint32_t lid );
+
+/****************************************************************************************** 
  * [45] This function block the calling thread on the THREAD_BLOCKED_GLOBAL condition,
  * and deschedule.
@@ -624 +636 @@
 
 /****************************************************************************************** 
- * [49] TBD
- ******************************************************************************************
- * @ cxy    : cluster identifier.
- * @ lid    : core local index.
- * @ return 0 if success / return -1 if failure.
- *****************************************************************************************/
-int sys_place( uint32_t cxy,
-               uint32_t lid );
+ * [49] This function returns a non-zero value in the <is_fg> buffer when the process
+ * identified by the <pid> argument is the current TXT owner.
+ ******************************************************************************************
+ * @ pid      : process identifier.
+ * @ is_fg    : pointer on buffer.
+ * @ return 0 if success / return -1 if failure.
+ *****************************************************************************************/
+int sys_is_fg( pid_t      pid,
+               uint32_t * is_fg );
 
 #endif  // _SYSCALLS_H_