1. Remove kdbframe. Bad idea.

2. Add a TF_DONE macro, which fiddles a trapframe to make the retry on
   return from traps act like a done (advance past the trapping
   instruction instead of re-executing).
3. Flush the windows before entering the debugger, since it is no
   longer done in the breakpoint trap vector.
4. Print a warning if trace <pid> is attempted, it is not yet implemented.
5. Print traps better and decode system calls in traces.

Submitted by:	rwatson (4)

1 files changed, 4 insertions, 8 deletions

diff --git a/sys/sparc64/include/db_machdep.h b/sys/sparc64/include/db_machdep.h
index f598dab..281f982 100644
--- a/sys/sparc64/include/db_machdep.h
+++ b/sys/sparc64/include/db_machdep.h
@@ -38,10 +38,6 @@
 typedef vm_offset_t	db_addr_t;
 typedef long		db_expr_t;
 
-struct db_regs {
-	u_long	dr_global[8];
-};
-
 typedef struct trapframe db_regs_t;
 extern db_regs_t ddb_regs;
 #define	DDB_REGS	(&ddb_regs)
@@ -52,10 +48,10 @@ extern db_regs_t ddb_regs;
 #define	BKPT_SIZE	(4)
 #define	BKPT_SET(inst)	(BKPT_INST)
 
-#define	FIXUP_PC_AFTER_BREAK do {					\
-	ddb_regs.tf_tpc = ddb_regs.tf_tnpc;				\
-	ddb_regs.tf_tnpc += BKPT_SIZE;					\
-} while (0);
+#define	BKPT_SKIP do {							\
+	ddb_regs.tf_tpc = ddb_regs.tf_tnpc + 4;				\
+	ddb_regs.tf_tnpc += 8;						\
+} while (0)
 
 #define	db_clear_single_step(regs)
 #define	db_set_single_step(regs)