/* Native-dependent code for NetBSD/sparc64.
- Copyright 2003, 2004 Free Software Foundation, Inc.
+ Copyright (C) 2003-2004, 2006-2012 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 "gdbcore.h"
+#include "regcache.h"
+#include "target.h"
#include "sparc64-tdep.h"
#include "sparc-nat.h"
struct regcache *regcache,
int regnum, const void *gregs)
{
- int sparc32 = (gdbarch_ptr_bit (current_gdbarch) == 32);
+ int sparc32 = (gdbarch_ptr_bit (get_regcache_arch (regcache)) == 32);
if (sparc32)
sparc32_supply_gregset (&sparc32nbsd_gregset, regcache, regnum, gregs);
const struct regcache *regcache,
int regnum, void *gregs)
{
- int sparc32 = (gdbarch_ptr_bit (current_gdbarch) == 32);
+ int sparc32 = (gdbarch_ptr_bit (get_regcache_arch (regcache)) == 32);
if (sparc32)
sparc32_collect_gregset (&sparc32nbsd_gregset, regcache, regnum, gregs);
}
static void
-sparc64nbsd_supply_fpregset (struct regcache *regcache,
+sparc64nbsd_supply_fpregset (const struct sparc_fpregset *fpregset,
+ struct regcache *regcache,
int regnum, const void *fpregs)
{
- int sparc32 = (gdbarch_ptr_bit (current_gdbarch) == 32);
+ int sparc32 = (gdbarch_ptr_bit (get_regcache_arch (regcache)) == 32);
if (sparc32)
- sparc32_supply_fpregset (regcache, regnum, fpregs);
+ sparc32_supply_fpregset (&sparc32_bsd_fpregset, regcache, regnum, fpregs);
else
- sparc64_supply_fpregset (regcache, regnum, fpregs);
+ sparc64_supply_fpregset (&sparc64_bsd_fpregset, regcache, regnum, fpregs);
}
static void
sparc64nbsd_collect_fpregset (const struct regcache *regcache,
int regnum, void *fpregs)
{
- int sparc32 = (gdbarch_ptr_bit (current_gdbarch) == 32);
+ int sparc32 = (gdbarch_ptr_bit (get_regcache_arch (regcache)) == 32);
if (sparc32)
- sparc32_collect_fpregset (regcache, regnum, fpregs);
+ sparc32_collect_fpregset (&sparc32_bsd_fpregset, regcache, regnum, fpregs);
else
- sparc64_collect_fpregset (regcache, regnum, fpregs);
+ sparc64_collect_fpregset (&sparc64_bsd_fpregset, regcache, regnum, fpregs);
}
/* Determine whether `gregset_t' contains register REGNUM. */
static int
-sparc64nbsd_gregset_supplies_p (int regnum)
+sparc64nbsd_gregset_supplies_p (struct gdbarch *gdbarch, int regnum)
{
- if (gdbarch_ptr_bit (current_gdbarch) == 32)
- return sparc32_gregset_supplies_p (regnum);
+ if (gdbarch_ptr_bit (gdbarch) == 32)
+ return sparc32_gregset_supplies_p (gdbarch, regnum);
/* Integer registers. */
if ((regnum >= SPARC_G1_REGNUM && regnum <= SPARC_G7_REGNUM)
/* Determine whether `fpregset_t' contains register REGNUM. */
static int
-sparc64nbsd_fpregset_supplies_p (int regnum)
+sparc64nbsd_fpregset_supplies_p (struct gdbarch *gdbarch, int regnum)
{
- if (gdbarch_ptr_bit (current_gdbarch) == 32)
- return sparc32_fpregset_supplies_p (regnum);
+ if (gdbarch_ptr_bit (gdbarch) == 32)
+ return sparc32_fpregset_supplies_p (gdbarch, regnum);
/* Floating-point registers. */
if ((regnum >= SPARC_F0_REGNUM && regnum <= SPARC_F31_REGNUM)
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, %pstate and %cwp. 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);
}
projects / deliverable / binutils-gdb.git / blobdiff