Changeset 435 for trunk/kernel/syscalls/sys_write.c

Timestamp:

Feb 20, 2018, 5:32:17 PM (6 years ago)

Author:

alain

Message:

Fix a bad bug in scheduler...

File:

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

trunk/kernel/syscalls/sys_write.c

@@ -41 +41 @@
 {
     error_t      error;
-    paddr_t      paddr;           // unused, but required for user space checking
+    paddr_t      paddr;           // required for user space checking
         xptr_t       file_xp;         // remote file extended pointer
     uint32_t     nbytes;          // number of bytes actually written
     reg_t        save_sr;         // required to enable IRQs during syscall
+
+#if (CONFIG_DEBUG_SYS_WRITE_DEBUG & 1)
+enter_sys_read = (uint32_t)tm_start;
+#endif
 
         thread_t   * this = CURRENT_THREAD;
@@ -54 +58 @@
 tm_start = hal_get_cycles();
 if( CONFIG_DEBUG_SYS_WRITE < tm_start )
-printk("\n[DBG] %s : thread %x / process %x / vaddr %x / count %d / cycle %d\n",
+printk("\n[DBG] %s : thread %x enter / process %x / vaddr %x / count %d / cycle %d\n",
 __FUNCTION__, this, process->pid, vaddr, count, (uint32_t)tm_start );
 #endif
@@ -162 +166 @@
 tm_end = hal_get_cycles();
 if( CONFIG_DEBUG_SYS_WRITE < tm_end )
-printk("\n[DBG] %s : thread %x in process %x / cycle %d\n"
+printk("\n[DBG] %s : thread %x exit / process %x / cycle %d\n"
 "nbytes = %d / first byte = %c / file_id = %d / cost = %d\n",
 __FUNCTION__, this, process->pid, (uint32_t)tm_start,
@@ -168 +172 @@
 #endif
  
+#if (CONFIG_DEBUG_SYS_WRITE & 1) 
+exit_sys_write = (uint32_t)tm_end;
+
+printk("\n@@@@@@@@@@@@ timing to write string %c\n"
+" - enter_sys_write          = %d / delta %d\n"
+" - enter_devfs_write        = %d / delta %d\n"
+" - enter_txt_write          = %d / delta %d\n"
+" - enter_chdev_cmd_write    = %d / delta %d\n"
+" - enter_chdev_server_write = %d / delta %d\n"
+" - enter_tty_cmd_write      = %d / delta %d\n"
+" - enter_tty_isr_write      = %d / delta %d\n"
+" - exit_tty_isr_write       = %d / delta %d\n"
+" - exit_tty_cmd_write       = %d / delta %d\n"
+" - exit_chdev_server_write  = %d / delta %d\n"
+" - exit_chdev_cmd_write     = %d / delta %d\n"
+" - exit_txt_write           = %d / delta %d\n"
+" - exit_devfs_write         = %d / delta %d\n"
+" - exit_sys_write           = %d / delta %d\n",
+*((char *)(intptr_t)paddr) ,
+enter_sys_write          , 0 ,
+enter_devfs_write        , enter_devfs_write        - enter_sys_write          ,
+enter_txt_write          , enter_txt_write          - enter_devfs_write        ,
+enter_chdev_cmd_write    , enter_chdev_cmd_write    - enter_txt_write          ,
+enter_chdev_server_write , enter_chdev_server_write - enter_chdev_cmd_write    ,
+enter_tty_cmd_write      , enter_tty_cmd_write      - enter_chdev_server_write ,
+enter_tty_isr_write      , enter_tty_isr_write      - enter_tty_cmd_write      ,
+exit_tty_isr_write       , exit_tty_isr_write       - enter_tty_isr_write      ,
+exit_tty_cmd_write       , exit_tty_cmd_write       - exit_tty_isr_write       ,
+exit_chdev_server_write  , exit_chdev_server_write  - exit_tty_cmd_write       ,
+exit_chdev_cmd_write     , exit_chdev_cmd_write     - exit_chdev_server_write  ,
+exit_txt_write           , exit_txt_write           - exit_chdev_cmd_write     ,
+exit_devfs_write         , exit_devfs_write         - exit_txt_write           ,
+exit_sys_write           , exit_sys_write           - exit_devfs_write         );
+#endif
+ 
         return nbytes;