Changeset 440 for trunk/kernel/syscalls/sys_get_cycle.c

Timestamp:

May 3, 2018, 5:51:22 PM (6 years ago)

Author:

alain

Message:

1/ Fix a bug in the Multithreaded "sort" applicationr:
The pthread_create() arguments must be declared as global variables.
2/ The exit syscall can be called by any thread of a process..

File:

• trunk/kernel/syscalls/sys_get_cycle.c (modified) (3 diffs)

trunk/kernel/syscalls/sys_get_cycle.c

@@ -2 +2 @@
  * sys_get_cycle.c - get calling core cycles count.
  * 
- * Author    Alain Greiner (2016,2017)
+ * Author    Alain Greiner (2016,2017,2018)
  *  
  * Copyright (c) UPMC Sorbonne Universites
@@ -35 +35 @@
 int sys_get_cycle ( uint64_t * cycle )
 {
-        error_t   error;
-    paddr_t   paddr;
-        uint64_t  k_cycle;
+        error_t     error;
+    vseg_t    * vseg;
+        uint64_t    k_cycle;
 
     thread_t  * this    = CURRENT_THREAD;
@@ -43 +43 @@
 
     // check buffer in user space
-    error = vmm_v2p_translate( false , cycle , &paddr );
+    error = vmm_get_vseg( process , (intptr_t)cycle , &vseg );
 
         if( error )
         {
-        printk("\n[ERROR] in %s : user buffer unmapped for thread %x in process %x\n",
-        __FUNCTION__ , this->trdid , process->pid );
+
+#if DEBUG_SYSCALLS_ERROR
+printk("\n[ERROR] in %s : user buffer unmapped %x / thread %x / process %x\n",
+__FUNCTION__ , (intptr_t)cycle , this->trdid , process->pid );
+vmm_display( process , false );
+#endif
         this->errno = EFAULT;
                 return -1;