/* Native-dependent code for FreeBSD/sparc64.
- Copyright 2003 Free Software Foundation, Inc.
+ Copyright (C) 2003-2005, 2007-2012 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
GNU General Public License for more details.
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. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
+#include "regcache.h"
+#include "target.h"
+#include "fbsd-nat.h"
#include "sparc64-tdep.h"
-#include "sparcbsd-nat.h"
+#include "sparc-nat.h"
+\f
-/* Determine whether `struct reg' contains register REGNUM. */
+/* Support for debugging kernel virtual memory images. */
-static int
-sparc64fbsd_reg_supplies_p (int regnum)
-{
- /* Integer registers. */
- if ((regnum >= SPARC_G0_REGNUM && regnum <= SPARC_G7_REGNUM)
- || (regnum >= SPARC_O0_REGNUM && regnum <= SPARC_O7_REGNUM)
- || (regnum >= SPARC_L0_REGNUM && regnum <= SPARC_L7_REGNUM)
- || (regnum >= SPARC_I0_REGNUM && regnum <= SPARC_I7_REGNUM))
- return 1;
-
- /* Control registers. */
- if (regnum == SPARC64_PC_REGNUM
- || regnum == SPARC64_NPC_REGNUM
- || regnum == SPARC64_STATE_REGNUM
- || regnum == SPARC64_FPRS_REGNUM
- || regnum == SPARC64_Y_REGNUM)
- return 1;
-
- return 0;
-}
+#include <sys/types.h>
+#include <machine/pcb.h>
-/* Determine whether `struct fpreg' contains register REGNUM. */
+#include "bsd-kvm.h"
static int
-sparc64fbsd_fpreg_supplies_p (int regnum)
+sparc64fbsd_kvm_supply_pcb (struct regcache *regcache, struct pcb *pcb)
{
- /* Floating-point registers. */
- if ((regnum >= SPARC_F0_REGNUM && regnum <= SPARC_F31_REGNUM)
- || (regnum >= SPARC64_F32_REGNUM && regnum <= SPARC64_F62_REGNUM))
- return 1;
+ /* The following is true for FreeBSD 5.4:
+
+ The pcb contains %sp and %pc. Since the register windows are
+ explicitly flushed, we can find the `local' and `in' registers on
+ the stack. */
+
+ /* The stack pointer shouldn't be zero. */
+ if (pcb->pcb_sp == 0)
+ return 0;
- /* Control registers. */
- if (regnum == SPARC64_FSR_REGNUM)
- return 1;
+ regcache_raw_supply (regcache, SPARC_SP_REGNUM, &pcb->pcb_sp);
+ regcache_raw_supply (regcache, SPARC64_PC_REGNUM, &pcb->pcb_pc);
- return 0;
+ /* Synthesize %npc. */
+ pcb->pcb_pc += 4;
+ regcache_raw_supply (regcache, SPARC64_NPC_REGNUM, &pcb->pcb_pc);
+
+ /* Read `local' and `in' registers from the stack. */
+ sparc_supply_rwindow (regcache, pcb->pcb_sp, -1);
+
+ return 1;
}
+\f
/* Provide a prototype to silence -Wmissing-prototypes. */
void _initialize_sparc64fbsd_nat (void);
void
_initialize_sparc64fbsd_nat (void)
{
- sparcbsd_supply_reg = sparc64fbsd_supply_reg;
- sparcbsd_fill_reg = sparc64fbsd_fill_reg;
- sparcbsd_supply_fpreg = sparc64fbsd_supply_fpreg;
- sparcbsd_fill_fpreg = sparc64fbsd_fill_fpreg;
+ struct target_ops *t;
+
+ /* Add some extra features to the generic SPARC target. */
+ t = sparc_target ();
+ t->to_pid_to_exec_file = fbsd_pid_to_exec_file;
+ t->to_find_memory_regions = fbsd_find_memory_regions;
+ t->to_make_corefile_notes = fbsd_make_corefile_notes;
+ add_target (t);
+
+ sparc_gregset = &sparc64fbsd_gregset;
- sparcbsd_reg_supplies_p = sparc64fbsd_reg_supplies_p;
- sparcbsd_fpreg_supplies_p = sparc64fbsd_reg_supplies_p;
+ /* Support debugging kernel virtual memory images. */
+ bsd_kvm_add_target (sparc64fbsd_kvm_supply_pcb);
}