/* Native-dependent code for NetBSD/sparc64.
- Copyright 2003, 2004 Free Software Foundation, Inc.
+ Copyright (C) 2003, 2004, 2006 Free Software Foundation, Inc.
This file is part of GDB.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
#include "defs.h"
+#include "gdbcore.h"
+#include "regcache.h"
+#include "target.h"
#include "sparc64-tdep.h"
#include "sparc-nat.h"
return 0;
}
+\f
+
+/* Support for debugging kernel virtual memory images. */
+
+#include <sys/types.h>
+#include <machine/pcb.h>
+
+#include "bsd-kvm.h"
+
+static int
+sparc64nbsd_supply_pcb (struct regcache *regcache, struct pcb *pcb)
+{
+ u_int64_t state;
+ int regnum;
+
+ /* The following is true for NetBSD 1.6.2:
+
+ The pcb contains %sp and %pc, %psr and %wim. From this information
+ we reconstruct the register state as it would look when we just
+ returned from cpu_switch(). */
+
+ /* The stack pointer shouldn't be zero. */
+ if (pcb->pcb_sp == 0)
+ return 0;
+
+ /* If the program counter is zero, this is probably a core dump, and
+ we can get %pc from the stack. */
+ if (pcb->pcb_pc == 0)
+ read_memory(pcb->pcb_sp + BIAS - 176 + (11 * 8),
+ (gdb_byte *)&pcb->pcb_pc, sizeof pcb->pcb_pc);
+
+
+ regcache_raw_supply (regcache, SPARC_SP_REGNUM, &pcb->pcb_sp);
+ regcache_raw_supply (regcache, SPARC64_PC_REGNUM, &pcb->pcb_pc);
+
+ state = pcb->pcb_pstate << 8 | pcb->pcb_cwp;
+ regcache_raw_supply (regcache, SPARC64_STATE_REGNUM, &state);
+
+ sparc_supply_rwindow (regcache, pcb->pcb_sp, -1);
+
+ return 1;
+}
\f
/* Provide a prototype to silence -Wmissing-prototypes. */
-void _initialize_sparcnbsd_nat (void);
+void _initialize_sparc64nbsd_nat (void);
void
-_initialize_sparcnbsd_nat (void)
+_initialize_sparc64nbsd_nat (void)
{
sparc_supply_gregset = sparc64nbsd_supply_gregset;
sparc_collect_gregset = sparc64nbsd_collect_gregset;
sparc_collect_fpregset = sparc64nbsd_collect_fpregset;
sparc_gregset_supplies_p = sparc64nbsd_gregset_supplies_p;
sparc_fpregset_supplies_p = sparc64nbsd_fpregset_supplies_p;
+
+ /* We've got nothing to add to the generic SPARC target. */
+ add_target (sparc_target ());
+
+ /* Support debugging kernel virtual memory images. */
+ bsd_kvm_add_target (sparc64nbsd_supply_pcb);
}