Changeset df58e44 in mainline for kernel/generic/src/proc/scheduler.c

Timestamp:

2011-01-27T16:36:35Z (14 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

5b7a107

Parents:

0843f02

Message:

• add support for printing uspace stack traces from kernel console (as a last resort debugging means)
• change the semantics of waitq_interrupt_sleep() (require threads_lock to be held even before it is called)
• minor cstyle

File:

• kernel/generic/src/proc/scheduler.c (modified) (5 diffs)

kernel/generic/src/proc/scheduler.c

@@ -62 +62 @@
 #include <print.h>
 #include <debug.h>
+#include <stacktrace.h>
 
 static void scheduler_separated_stack(void);
@@ -77 +78 @@
  * Perform actions that need to be
  * taken before the newly selected
- * tread is passed control.
+ * thread is passed control.
  *
  * THREAD->lock is locked on entry
@@ -87 +88 @@
         
 #ifdef CONFIG_FPU_LAZY
-        if(THREAD == CPU->fpu_owner)
+        if (THREAD == CPU->fpu_owner)
                 fpu_enable();
         else
@@ -100 +101 @@
         }
 #endif
+        
+        if (THREAD->btrace) {
+                istate_t *istate = THREAD->udebug.uspace_state;
+                if (istate != NULL) {
+                        printf("Thread %" PRIu64 " stack trace:\n", THREAD->tid);
+                        stack_trace_istate(istate);
+                }
+                
+                THREAD->btrace = false;
+        }
 }
 
@@ -645 +656 @@
                                 /*
                                  * Ready thread on local CPU
-                                 *
                                  */