Changeset 408 for trunk/kernel/libk

Timestamp:

Dec 5, 2017, 4:20:07 PM (7 years ago)

Author:

alain

Message:

Fix several bugs in the fork() syscall.

Location:

trunk/kernel/libk

Files:

• remote_barrier.c (modified) (1 diff)
• remote_condvar.c (modified) (1 diff)
• remote_fifo.c (modified) (1 diff)
• remote_mutex.c (modified) (1 diff)
• remote_sem.c (modified) (1 diff)
• remote_spinlock.c (modified) (1 diff)
• spinlock.c (modified) (1 diff)

trunk/kernel/libk/remote_barrier.c

@@ -274 +274 @@
         // block & deschedule the calling thread
         thread_block( thread_ptr , THREAD_BLOCKED_USERSYNC );
-        sched_yield();
+        sched_yield("blocked on barrier");
 
         // restore interrupts

trunk/kernel/libk/remote_condvar.c

@@ -189 +189 @@
     // block the calling thread 
     thread_block( CURRENT_THREAD , THREAD_BLOCKED_USERSYNC );
-    sched_yield();
+    sched_yield("blocked on condvar");
 
     // lock the mutex before return

trunk/kernel/libk/remote_fifo.c

@@ -89 +89 @@
         // - deschedule without blocking if possible
         // - wait ~1000 cycles otherwise
-        if( thread_can_yield() ) sched_yield();
+        if( thread_can_yield() ) sched_yield( "wait RPC fifo" );
         else                     hal_fixed_delay( 1000 );
 

trunk/kernel/libk/remote_mutex.c

@@ -208 +208 @@
         // block & deschedule the calling thread   
         thread_block( thread_ptr , THREAD_BLOCKED_USERSYNC );
-        sched_yield();
+        sched_yield("blocked on mutex");
 
         // restore interrupts

trunk/kernel/libk/remote_sem.c

@@ -219 +219 @@
         // block and deschedule
         thread_block( this , THREAD_BLOCKED_SEM );  
-        sched_yield();
+        sched_yield("blocked on semaphore");
         }
 }  // end remote_sem_wait()

trunk/kernel/libk/remote_spinlock.c

@@ -179 +179 @@
                 {
                         hal_restore_irq( mode );
-                        if( thread_can_yield() ) sched_yield();
+                        if( thread_can_yield() ) sched_yield("waiting spinlock");
                         hal_disable_irq( &mode );
                         continue;

trunk/kernel/libk/spinlock.c

@@ -111 +111 @@
         {
             hal_restore_irq( mode );
-            if( thread_can_yield() ) sched_yield();
+            if( thread_can_yield() ) sched_yield("waiting spinlock");
             hal_disable_irq( &mode );
             continue;