Flesh out the sparc64 port considerably. This contains:

- mostly complete kernel pmap support, and tested but currently turned
  off userland pmap support
- low level assembly language trap, context switching and support code
- fully implemented atomic.h and supporting cpufunc.h
- some support for kernel debugging with ddb
- various header tweaks and filling out of machine dependent structures

1 files changed, 44 insertions, 0 deletions

diff --git a/sys/sparc64/include/db_machdep.h b/sys/sparc64/include/db_machdep.h
index 5d091ee..0e4954e 100644
--- a/sys/sparc64/include/db_machdep.h
+++ b/sys/sparc64/include/db_machdep.h
@@ -29,4 +29,48 @@
 #ifndef	_MACHINE_DB_MACHDEP_H_
 #define	_MACHINE_DB_MACHDEP_H_
 
+#include <machine/frame.h>
+#include <machine/trap.h>
+
+#define	BYTE_MSF	(1)
+
+typedef vm_offset_t	db_addr_t;
+typedef u_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)
+
+#define	PC_REGS(regs)	((db_addr_t)(regs)->tf_tpc)
+
+#define	BKPT_INST	(0)
+#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	db_clear_single_step(regs)
+#define	db_set_single_step(regs)
+
+#define	IS_BREAKPOINT_TRAP(type, code)	(type == T_BREAKPOINT)
+#define	IS_WATCHPOINT_TRAP(type, code)	(0)
+
+#define	inst_trap_return(ins)	(0)
+#define	inst_return(ins)	(0)
+#define	inst_call(ins)		(0)
+#define	inst_load(ins)		(0)
+#define	inst_store(ins)		(0)
+
+#define	DB_SMALL_VALUE_MAX	(0x7fffffff)
+#define	DB_SMALL_VALUE_MIN	(-0x40001)
+
+#define	DB_ELFSIZE		64
+
 #endif /* !_MACHINE_DB_MACHDEP_H_ */