Changeset 637 for trunk/kernel/syscalls/sys_timeofday.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_timeofday.c (modified) (2 diffs)

trunk/kernel/syscalls/sys_timeofday.c

@@ -50 +50 @@
         process_t *    process = this->process;
 
+#if (DEBUG_SYS_TIMEOFDAY || CONFIG_INSTRUMENTATION_SYSCALLS)
+uint64_t     tm_start = hal_get_cycles();
+#endif
+
+#if DEBUG_SYS_TIMEOFDAY
+if( DEBUG_SYS_TIMEOFDAY < tm_start )
+printk("\n[%s] thread[%x,%x] enter / cycle %d\n",
+__FUNCTION__, process->pid, this->trdid, (uint32_t)tm_start );
+#endif
+ 
     // check tz (non supported / must be null)
     if( tz )
@@ -82 +92 @@
 
     // copy values to user space
-        hal_copy_to_uspace( local_cxy,
-                        &k_tv,
-                        tv,
+        hal_copy_to_uspace( tv,
+                        XPTR( local_cxy , &k_tv ),
                         sizeof(struct timeval) );
 
     hal_fence();
 
+#if (DEBUG_SYS_TIMEOFDAY || CONFIG_INSTRUMENTATION_SYSCALLS)
+uint64_t     tm_end = hal_get_cycles();
+#endif
+
+#if DEBUG_SYS_TIMEOFDAY
+if( DEBUG_SYS_TIMEOFDAY < tm_end )
+printk("\n[%s] thread[%x,%x] exit / cycle %d\n",
+__FUNCTION__, process->pid, this->trdid, (uint32_t)tm_end );
+#endif
+ 
+#if CONFIG_INSTRUMENTATION_SYSCALLS
+hal_atomic_add( &syscalls_cumul_cost[SYS_TIMEOFDAY] , tm_end - tm_start );
+hal_atomic_add( &syscalls_occurences[SYS_TIMEOFDAY] , 1 );
+#endif
+
         return 0;