/* Native-dependent code for Alpha BSD's.
- Copyright 2000, 2001, 2002 Free Software Foundation, Inc.
+
+ Copyright (C) 2000, 2001, 2002, 2004, 2005, 2006, 2007, 2008, 2009
+ 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 "inferior.h"
#include "alpha-tdep.h"
#include "alphabsd-tdep.h"
+#include "inf-ptrace.h"
#include <sys/types.h>
#include <sys/ptrace.h>
supply/fill routines. */
void
-supply_gregset (gregset_t *gregsetp)
+supply_gregset (struct regcache *regcache, const gregset_t *gregsetp)
{
- alphabsd_supply_reg ((char *) gregsetp, -1);
+ alphabsd_supply_reg (regcache, (const char *) gregsetp, -1);
}
void
-fill_gregset (gregset_t *gregsetp, int regno)
+fill_gregset (const struct regcache *regcache, gregset_t *gregsetp, int regno)
{
- alphabsd_fill_reg ((char *) gregsetp, regno);
+ alphabsd_fill_reg (regcache, (char *) gregsetp, regno);
}
void
-supply_fpregset (fpregset_t *fpregsetp)
+supply_fpregset (struct regcache *regcache, const fpregset_t *fpregsetp)
{
- alphabsd_supply_fpreg ((char *) fpregsetp, -1);
+ alphabsd_supply_fpreg (regcache, (const char *) fpregsetp, -1);
}
void
-fill_fpregset (fpregset_t *fpregsetp, int regno)
+fill_fpregset (const struct regcache *regcache, fpregset_t *fpregsetp, int regno)
{
- alphabsd_fill_fpreg ((char *) fpregsetp, regno);
+ alphabsd_fill_fpreg (regcache, (char *) fpregsetp, regno);
}
\f
/* Determine if PT_GETREGS fetches this register. */
static int
getregs_supplies (int regno)
{
-
return ((regno >= ALPHA_V0_REGNUM && regno <= ALPHA_ZERO_REGNUM)
- || regno >= PC_REGNUM);
+ || regno >= ALPHA_PC_REGNUM);
}
-
/* Fetch register REGNO from the inferior. If REGNO is -1, do this
for all registers (including the floating point registers). */
-void
-fetch_inferior_registers (int regno)
+static void
+alphabsd_fetch_inferior_registers (struct target_ops *ops,
+ struct regcache *regcache, int regno)
{
-
if (regno == -1 || getregs_supplies (regno))
{
struct reg gregs;
if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
- (PTRACE_ARG3_TYPE) &gregs, 0) == -1)
- perror_with_name ("Couldn't get registers");
+ (PTRACE_TYPE_ARG3) &gregs, 0) == -1)
+ perror_with_name (_("Couldn't get registers"));
- alphabsd_supply_reg ((char *) &gregs, regno);
+ alphabsd_supply_reg (regcache, (char *) &gregs, regno);
if (regno != -1)
return;
}
- if (regno == -1 || regno >= FP0_REGNUM)
+ if (regno == -1 || regno >= gdbarch_fp0_regnum (get_regcache_arch (regcache)))
{
struct fpreg fpregs;
if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
- (PTRACE_ARG3_TYPE) &fpregs, 0) == -1)
- perror_with_name ("Couldn't get floating point status");
+ (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
+ perror_with_name (_("Couldn't get floating point status"));
- alphabsd_supply_fpreg ((char *) &fpregs, regno);
+ alphabsd_supply_fpreg (regcache, (char *) &fpregs, regno);
}
-
- /* Reset virtual frame pointer. */
- supply_register (FP_REGNUM, NULL);
}
/* Store register REGNO back into the inferior. If REGNO is -1, do
this for all registers (including the floating point registers). */
-void
-store_inferior_registers (int regno)
+static void
+alphabsd_store_inferior_registers (struct target_ops *ops,
+ struct regcache *regcache, int regno)
{
-
if (regno == -1 || getregs_supplies (regno))
{
struct reg gregs;
if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
- (PTRACE_ARG3_TYPE) &gregs, 0) == -1)
- perror_with_name ("Couldn't get registers");
+ (PTRACE_TYPE_ARG3) &gregs, 0) == -1)
+ perror_with_name (_("Couldn't get registers"));
- alphabsd_fill_reg ((char *) &gregs, regno);
+ alphabsd_fill_reg (regcache, (char *) &gregs, regno);
if (ptrace (PT_SETREGS, PIDGET (inferior_ptid),
- (PTRACE_ARG3_TYPE) &gregs, 0) == -1)
- perror_with_name ("Couldn't write registers");
+ (PTRACE_TYPE_ARG3) &gregs, 0) == -1)
+ perror_with_name (_("Couldn't write registers"));
if (regno != -1)
return;
}
- if (regno == -1 || regno >= FP0_REGNUM)
+ if (regno == -1 || regno >= gdbarch_fp0_regnum (get_regcache_arch (regcache)))
{
struct fpreg fpregs;
if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
- (PTRACE_ARG3_TYPE) &fpregs, 0) == -1)
- perror_with_name ("Couldn't get floating point status");
+ (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
+ perror_with_name (_("Couldn't get floating point status"));
- alphabsd_fill_fpreg ((char *) &fpregs, regno);
+ alphabsd_fill_fpreg (regcache, (char *) &fpregs, regno);
if (ptrace (PT_SETFPREGS, PIDGET (inferior_ptid),
- (PTRACE_ARG3_TYPE) &fpregs, 0) == -1)
- perror_with_name ("Couldn't write floating point status");
+ (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
+ perror_with_name (_("Couldn't write floating point status"));
}
}
+\f
+
+/* Support for debugging kernel virtual memory images. */
+
+#include <sys/types.h>
+#include <sys/signal.h>
+#include <machine/pcb.h>
+
+#include "bsd-kvm.h"
+
+static int
+alphabsd_supply_pcb (struct regcache *regcache, struct pcb *pcb)
+{
+ int regnum;
+
+ /* The following is true for OpenBSD 3.9:
+
+ The pcb contains the register state at the context switch inside
+ cpu_switch(). */
+
+ /* The stack pointer shouldn't be zero. */
+ if (pcb->pcb_hw.apcb_ksp == 0)
+ return 0;
+
+ regcache_raw_supply (regcache, ALPHA_SP_REGNUM, &pcb->pcb_hw.apcb_ksp);
+
+ for (regnum = ALPHA_S0_REGNUM; regnum < ALPHA_A0_REGNUM; regnum++)
+ regcache_raw_supply (regcache, regnum,
+ &pcb->pcb_context[regnum - ALPHA_S0_REGNUM]);
+ regcache_raw_supply (regcache, ALPHA_RA_REGNUM, &pcb->pcb_context[7]);
+
+ return 1;
+}
+\f
+
+/* Provide a prototype to silence -Wmissing-prototypes. */
+void _initialize_alphabsd_nat (void);
+
+void
+_initialize_alphabsd_nat (void)
+{
+ struct target_ops *t;
+
+ t = inf_ptrace_target ();
+ t->to_fetch_registers = alphabsd_fetch_inferior_registers;
+ t->to_store_registers = alphabsd_store_inferior_registers;
+ add_target (t);
+
+ /* Support debugging kernel virtual memory images. */
+ bsd_kvm_add_target (alphabsd_supply_pcb);
+}
projects / external / binutils.git / blobdiff