Changeset 23d22eb in mainline for arch/ia32/src/proc/scheduler.c

Timestamp:

2006-03-17T11:55:43Z (19 years ago)

Author:

Ondrej Palkovsky <ondrap@…>

Branches:

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

Children:

bd72b475

Parents:

4e49572

Message:

Ported AMD64 debugger to ia32 and enabled AS watchpoint to ia32 as well.

File:

• arch/ia32/src/proc/scheduler.c (modified) (2 diffs)

arch/ia32/src/proc/scheduler.c

@@ -32 +32 @@
 #include <arch.h>
 #include <arch/context.h>       /* SP_DELTA */
+#include <arch/debugger.h>
 
 void before_thread_runs_arch(void)
@@ -37 +38 @@
         CPU->arch.tss->esp0 = (__address) &THREAD->kstack[THREAD_STACK_SIZE-SP_DELTA];
         CPU->arch.tss->ss0 = selector(KDATA_DES);
+
+#ifdef CONFIG_DEBUG_AS_WATCHPOINT
+        /* Set watchpoint on AS to ensure that nobody sets it to zero */
+        static int old_slot = -1;
+        if (old_slot >=0)
+                breakpoint_del(old_slot);
+        old_slot = breakpoint_add(&((the_t *) THREAD->kstack)->as, 
+                                  BKPOINT_WRITE | BKPOINT_CHECK_ZERO);
+#endif
+
 }