Changeset 637 for trunk/kernel/syscalls/sys_sem.c

Timestamp:

Jul 18, 2019, 2:06:55 PM (5 years ago)

Author:

alain

Message:

Introduce the non-standard pthread_parallel_create() system call
and re-write the <fft> and <sort> applications to improve the
intrinsic paralelism in applications.

File:

• trunk/kernel/syscalls/sys_sem.c (modified) (4 diffs)

trunk/kernel/syscalls/sys_sem.c

@@ -58 +58 @@
     process_t      * process = this->process;
 
+#if (DEBUG_SYS_SEM || CONFIG_INSTRUMENTATION_SYSCALLS)
+uint64_t     tm_start = hal_get_cycles();
+#endif
+
 #if DEBUG_SYS_SEM
-uint64_t    tm_start;
-uint64_t    tm_end;
-tm_start = hal_get_cycles();
 if( DEBUG_SYS_SEM < tm_start )
 printk("\n[DBG] %s : thread %x in process %x enter for %s / cycle %d\n",
@@ -137 +138 @@
  
             // return value to user
-            hal_copy_to_uspace( local_cxy,
-                                &current,
-                                current_value,
+            hal_copy_to_uspace( current_value,
+                                XPTR( local_cxy , &current ),
                                 sizeof(uint32_t) );
         }
@@ -224 +224 @@
     hal_fence();
 
+#if (DEBUG_SYS_SEM || CONFIG_INSTRUMENTATION_SYSCALLS)
+uint64_t     tm_end = hal_get_cycles();
+#endif
+
 #if DEBUG_SYS_SEM
-tm_end = hal_get_cycles();
 if( DEBUG_SYS_SEM < tm_end )
 printk("\n[DBG] %s : thread %x in process %x exit for %s / cost = %d / cycle %d\n",
@@ -232 +235 @@
 #endif
 
+#if CONFIG_INSTRUMENTATION_SYSCALLS
+hal_atomic_add( &syscalls_cumul_cost[SYS_SEM] , tm_end - tm_start );
+hal_atomic_add( &syscalls_occurences[SYS_SEM] , 1 );
+#endif
+
     return 0;