Changeset 594 for trunk/kernel/syscalls/sys_open.c

Timestamp:

Nov 10, 2018, 2:33:26 PM (6 years ago)

Author:

alain

Message:

Fix various bugs in sys_stat() and sys_mmap() functions.
Improve debug in other functions.

File:

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

trunk/kernel/syscalls/sys_open.c

@@ -47 +47 @@
     process_t    * process  = this->process;
 
-#if DEBUG_SYS_OPEN
-uint32_t     tm_start;
-uint32_t     tm_end;
-tm_start = hal_get_cycles();
+#if (DEBUG_SYS_OPEN || CONFIG_INSTRUMENTATION_SYSCALLS)
+uint64_t     tm_start = hal_get_cycles();
 #endif
- 
+
     // check fd_array not full
     if( process_fd_array_full() )
@@ -81 +79 @@
 #if DEBUG_SYS_OPEN
 if( DEBUG_SYS_OPEN < tm_start )
-printk("\n[DBG] %s : thread %x in process %x enter / path %s / flags %x / cycle %d\n",
-__FUNCTION__, this->trdid, process->pid, kbuf, flags, (uint32_t)tm_start );
+printk("\n[%s] thread[%x,%x] enter for <%s> / flags %x / cycle %d\n",
+__FUNCTION__, process->pid, this->trdid, kbuf, flags, (uint32_t)tm_start );
 #endif
  
@@ -112 +110 @@
     }
 
+    hal_fence;
+
+#if (DEBUG_SYS_OPEN || CONFIG_INSTRUMENTATION_SYSCALLS)
+uint64_t     tm_end = hal_get_cycles();
+#endif
+
 #if DEBUG_SYS_OPEN
-tm_end = hal_get_cycles();
 if( DEBUG_SYS_OPEN < tm_start )
-printk("\n[DBG] %s : thread %x in process %x exit / cost %d / cycle %d\n",
-__FUNCTION__, this->trdid, process->pid, (uint32_t)(tm_end - tm_start), (uint32_t)tm_start );
+printk("\n[%s] thread[%x,%x] exit for <%s> / cycle %d\n",
+__FUNCTION__, process->pid, this->trdid, kbuf, (uint32_t)tm_end );
 #endif
  
+#if CONFIG_INSTRUMENTATION_SYSCALLS
+hal_atomic_add( &syscalls_cumul_cost[SYS_OPEN] , tm_end - tm_start );
+hal_atomic_add( &syscalls_occurences[SYS_OPEN] , 1 );
+#endif
+
     return file_id;
 }