/* Native-dependent code for modern VAX BSD's.
|
/* Native-dependent code for modern VAX BSD's.
|
|
|
Copyright (C) 2004, 2005, 2007, 2008 Free Software Foundation, Inc.
|
Copyright (C) 2004, 2005, 2007, 2008 Free Software Foundation, Inc.
|
|
|
This file is part of GDB.
|
This file is part of GDB.
|
|
|
This program is free software; you can redistribute it and/or modify
|
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
|
it under the terms of the GNU General Public License as published by
|
the Free Software Foundation; either version 3 of the License, or
|
the Free Software Foundation; either version 3 of the License, or
|
(at your option) any later version.
|
(at your option) any later version.
|
|
|
This program is distributed in the hope that it will be useful,
|
This program is distributed in the hope that it will be useful,
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
GNU General Public License for more details.
|
GNU General Public License for more details.
|
|
|
You should have received a copy of the GNU General Public License
|
You should have received a copy of the GNU General Public License
|
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
|
|
#include "defs.h"
|
#include "defs.h"
|
#include "inferior.h"
|
#include "inferior.h"
|
#include "regcache.h"
|
#include "regcache.h"
|
#include "target.h"
|
#include "target.h"
|
|
|
#include <sys/types.h>
|
#include <sys/types.h>
|
#include <sys/ptrace.h>
|
#include <sys/ptrace.h>
|
#include <machine/reg.h>
|
#include <machine/reg.h>
|
|
|
#include "vax-tdep.h"
|
#include "vax-tdep.h"
|
#include "inf-ptrace.h"
|
#include "inf-ptrace.h"
|
|
|
/* Supply the general-purpose registers stored in GREGS to REGCACHE. */
|
/* Supply the general-purpose registers stored in GREGS to REGCACHE. */
|
|
|
static void
|
static void
|
vaxbsd_supply_gregset (struct regcache *regcache, const void *gregs)
|
vaxbsd_supply_gregset (struct regcache *regcache, const void *gregs)
|
{
|
{
|
const gdb_byte *regs = gregs;
|
const gdb_byte *regs = gregs;
|
int regnum;
|
int regnum;
|
|
|
for (regnum = 0; regnum < VAX_NUM_REGS; regnum++)
|
for (regnum = 0; regnum < VAX_NUM_REGS; regnum++)
|
regcache_raw_supply (regcache, regnum, regs + regnum * 4);
|
regcache_raw_supply (regcache, regnum, regs + regnum * 4);
|
}
|
}
|
|
|
/* Collect the general-purpose registers from REGCACHE and store them
|
/* Collect the general-purpose registers from REGCACHE and store them
|
in GREGS. */
|
in GREGS. */
|
|
|
static void
|
static void
|
vaxbsd_collect_gregset (const struct regcache *regcache,
|
vaxbsd_collect_gregset (const struct regcache *regcache,
|
void *gregs, int regnum)
|
void *gregs, int regnum)
|
{
|
{
|
gdb_byte *regs = gregs;
|
gdb_byte *regs = gregs;
|
int i;
|
int i;
|
|
|
for (i = 0; i <= VAX_NUM_REGS; i++)
|
for (i = 0; i <= VAX_NUM_REGS; i++)
|
{
|
{
|
if (regnum == -1 || regnum == i)
|
if (regnum == -1 || regnum == i)
|
regcache_raw_collect (regcache, i, regs + i * 4);
|
regcache_raw_collect (regcache, i, regs + i * 4);
|
}
|
}
|
}
|
}
|
|
|
|
|
/* Fetch register REGNUM from the inferior. If REGNUM is -1, do this
|
/* Fetch register REGNUM from the inferior. If REGNUM is -1, do this
|
for all registers. */
|
for all registers. */
|
|
|
static void
|
static void
|
vaxbsd_fetch_inferior_registers (struct regcache *regcache, int regnum)
|
vaxbsd_fetch_inferior_registers (struct regcache *regcache, int regnum)
|
{
|
{
|
struct reg regs;
|
struct reg regs;
|
|
|
if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
|
if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
|
(PTRACE_TYPE_ARG3) ®s, 0) == -1)
|
(PTRACE_TYPE_ARG3) ®s, 0) == -1)
|
perror_with_name (_("Couldn't get registers"));
|
perror_with_name (_("Couldn't get registers"));
|
|
|
vaxbsd_supply_gregset (regcache, ®s);
|
vaxbsd_supply_gregset (regcache, ®s);
|
}
|
}
|
|
|
/* Store register REGNUM back into the inferior. If REGNUM is -1, do
|
/* Store register REGNUM back into the inferior. If REGNUM is -1, do
|
this for all registers. */
|
this for all registers. */
|
|
|
static void
|
static void
|
vaxbsd_store_inferior_registers (struct regcache *regcache, int regnum)
|
vaxbsd_store_inferior_registers (struct regcache *regcache, int regnum)
|
{
|
{
|
struct reg regs;
|
struct reg regs;
|
|
|
if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
|
if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
|
(PTRACE_TYPE_ARG3) ®s, 0) == -1)
|
(PTRACE_TYPE_ARG3) ®s, 0) == -1)
|
perror_with_name (_("Couldn't get registers"));
|
perror_with_name (_("Couldn't get registers"));
|
|
|
vaxbsd_collect_gregset (regcache, ®s, regnum);
|
vaxbsd_collect_gregset (regcache, ®s, regnum);
|
|
|
if (ptrace (PT_SETREGS, PIDGET (inferior_ptid),
|
if (ptrace (PT_SETREGS, PIDGET (inferior_ptid),
|
(PTRACE_TYPE_ARG3) ®s, 0) == -1)
|
(PTRACE_TYPE_ARG3) ®s, 0) == -1)
|
perror_with_name (_("Couldn't write registers"));
|
perror_with_name (_("Couldn't write registers"));
|
}
|
}
|
|
|
|
|
/* Support for debugging kernel virtual memory images. */
|
/* Support for debugging kernel virtual memory images. */
|
|
|
#include <sys/types.h>
|
#include <sys/types.h>
|
#include <machine/pcb.h>
|
#include <machine/pcb.h>
|
|
|
#include "bsd-kvm.h"
|
#include "bsd-kvm.h"
|
|
|
static int
|
static int
|
vaxbsd_supply_pcb (struct regcache *regcache, struct pcb *pcb)
|
vaxbsd_supply_pcb (struct regcache *regcache, struct pcb *pcb)
|
{
|
{
|
int regnum;
|
int regnum;
|
|
|
/* The following is true for OpenBSD 3.5:
|
/* The following is true for OpenBSD 3.5:
|
|
|
The pcb contains the register state at the context switch inside
|
The pcb contains the register state at the context switch inside
|
cpu_switch(). */
|
cpu_switch(). */
|
|
|
/* The stack pointer shouldn't be zero. */
|
/* The stack pointer shouldn't be zero. */
|
if (pcb->KSP == 0)
|
if (pcb->KSP == 0)
|
return 0;
|
return 0;
|
|
|
for (regnum = VAX_R0_REGNUM; regnum < VAX_AP_REGNUM; regnum++)
|
for (regnum = VAX_R0_REGNUM; regnum < VAX_AP_REGNUM; regnum++)
|
regcache_raw_supply (regcache, regnum, &pcb->R[regnum - VAX_R0_REGNUM]);
|
regcache_raw_supply (regcache, regnum, &pcb->R[regnum - VAX_R0_REGNUM]);
|
regcache_raw_supply (regcache, VAX_AP_REGNUM, &pcb->AP);
|
regcache_raw_supply (regcache, VAX_AP_REGNUM, &pcb->AP);
|
regcache_raw_supply (regcache, VAX_FP_REGNUM, &pcb->FP);
|
regcache_raw_supply (regcache, VAX_FP_REGNUM, &pcb->FP);
|
regcache_raw_supply (regcache, VAX_SP_REGNUM, &pcb->KSP);
|
regcache_raw_supply (regcache, VAX_SP_REGNUM, &pcb->KSP);
|
regcache_raw_supply (regcache, VAX_PC_REGNUM, &pcb->PC);
|
regcache_raw_supply (regcache, VAX_PC_REGNUM, &pcb->PC);
|
regcache_raw_supply (regcache, VAX_PS_REGNUM, &pcb->PSL);
|
regcache_raw_supply (regcache, VAX_PS_REGNUM, &pcb->PSL);
|
|
|
return 1;
|
return 1;
|
}
|
}
|
|
|
|
|
/* Provide a prototype to silence -Wmissing-prototypes. */
|
/* Provide a prototype to silence -Wmissing-prototypes. */
|
void _initialize_vaxbsd_nat (void);
|
void _initialize_vaxbsd_nat (void);
|
|
|
void
|
void
|
_initialize_vaxbsd_nat (void)
|
_initialize_vaxbsd_nat (void)
|
{
|
{
|
struct target_ops *t;
|
struct target_ops *t;
|
|
|
t = inf_ptrace_target ();
|
t = inf_ptrace_target ();
|
t->to_fetch_registers = vaxbsd_fetch_inferior_registers;
|
t->to_fetch_registers = vaxbsd_fetch_inferior_registers;
|
t->to_store_registers = vaxbsd_store_inferior_registers;
|
t->to_store_registers = vaxbsd_store_inferior_registers;
|
add_target (t);
|
add_target (t);
|
|
|
/* Support debugging kernel virtual memory images. */
|
/* Support debugging kernel virtual memory images. */
|
bsd_kvm_add_target (vaxbsd_supply_pcb);
|
bsd_kvm_add_target (vaxbsd_supply_pcb);
|
}
|
}
|
|
|
