Changeset 416 for trunk/kernel/syscalls/sys_exec.c

Timestamp:

Jan 4, 2018, 10:05:47 AM (6 years ago)

Author:

alain

Message:

Improve sys_exec.

File:

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

trunk/kernel/syscalls/sys_exec.c

@@ -160 +160 @@
 // and this sys_exec() function uses a RPC to access the owner cluster if required. 
 // 
-// TODO : the args & envs arguments are not supported yet : both must be NULL 
+// TODO : the args & envs arguments are not supported yet : both must be NULL  [AG]
 /////////////////////////////////////////////////////////////////////////////////////////
 int sys_exec( char  * pathname,     // .elf file pathname
@@ -169 +169 @@
     error_t       error;
 
-        uint64_t      tm_start;
-        uint64_t      tm_end;
-
-        tm_start = hal_get_cycles();
-
     // get parent process pid
     thread_t   * this    = CURRENT_THREAD;
@@ -179 +174 @@
     pid_t        pid     = process->pid;
 
-exec_dmsg("\n[DBG] %s : core[%x,%d] enters for process %x / cycle %d\n",
-__FUNCTION__, local_cxy, this->core->lid, pid, (uint32_t)hal_get_cycles() );
+#if CONFIG_SYSCALL_DEBUG
+uint64_t      tm_start;
+uint64_t      tm_end;
+tm_start = hal_get_cycles();
+printk("\n[DBG] %s : core[%x,%d] enter / process %x / path = %s / cycle = %d\n",
+__FUNCTION__, local_cxy, this->core->lid, pid, exec_info.path, (uint32_t)tm_start );
+#endif
 
     // get owner cluster
@@ -249 +249 @@
     }
 
-    tm_end = hal_get_cycles();
-
-exec_dmsg("\n[DBG] %s : core[%x,%d] exit for process %x / cycle %d\n"
-"     pathname = %s / cost = %d\n",
-__FUNCTION__, local_cxy, this->core->lid, pid, (uint32_t)tm_start,
-exec_info.path , (uint32_t)(tm_end - tm_start) );
+#if CONFIG_SYSCALL_DEBUG
+tm_end = hal_get_cycles();
+printk("\n[DBG] %s : core[%x,%d] exit / process %x / path = %s / cost = %d\n",
+__FUNCTION__, local_cxy, this->core->lid, pid, exec_info.path, (uint32_t)(tm_end - tm_start) );
+#endif
 
     return 0;