Changeset 4e49572 in mainline for arch/amd64/src

Timestamp:

2006-03-17T11:41:05Z (20 years ago)

Author:

Ondrej Palkovsky <ondrap@…>

Branches:

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

Children:

23d22eb

Parents:

5a7d9d1

Message:

Added debugger to AMD64.
Added automatic debugging of AS if it is not rewritten with zero.
Did small changes to IPC infrastructure.

Location:

arch/amd64/src

Files:

• amd64.c (modified) (2 diffs)
• debugger.c (added)
• proc/scheduler.c (modified) (2 diffs)

arch/amd64/src/amd64.c

@@ -47 +47 @@
 #include <interrupt.h>
 #include <arch/syscall.h>
+#include <arch/debugger.h>
 
 /** Disable I/O on non-privileged levels
@@ -130 +131 @@
         if (config.cpu_active == 1) {
                 ega_init();     /* video */
+                /* Enable debugger */
+                debugger_init();
         }
         /* Setup fast SYSCALL/SYSRET */
         syscall_setup_cpu();
-
+        
 }
 

arch/amd64/src/proc/scheduler.c

@@ -33 +33 @@
 #include <arch/context.h>       /* SP_DELTA */
 #include <arch/asm.h>
+#include <arch/debugger.h>
 
 void before_thread_runs_arch(void)
@@ -43 +44 @@
                   (__u64)&THREAD->kstack);
         swapgs();
+
+
+#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
 }