57cd0b542e
"inf-ptrace.h". (hppabsd_fetch_registers): Renamed from fetch_inferior_registers; made static. (hppabsd_store_registers): Renamed from store_inferior_registers; made static. (_initialize_hppabsd_nat): New function and prototype. * config/pa/obsd.mh (NATDEPFILES): Remove infptrace.o and inftarg.o. Add inf-ptrace.o. (NAT_FILE): Remove. * Makefile.in (hppabsd-nat.o): Update dependencies.
137 lines
3.9 KiB
C
137 lines
3.9 KiB
C
/* Native-dependent code for HP PA-RISC BSD's.
|
||
|
||
Copyright 2004, 2005 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
|
||
(at your option) any later version.
|
||
|
||
This program is distributed in the hope that it will be useful,
|
||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
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. */
|
||
|
||
#include "defs.h"
|
||
#include "inferior.h"
|
||
#include "regcache.h"
|
||
#include "target.h"
|
||
|
||
#include <sys/types.h>
|
||
#include <sys/ptrace.h>
|
||
#include <machine/reg.h>
|
||
|
||
#include "hppa-tdep.h"
|
||
#include "inf-ptrace.h"
|
||
|
||
static int
|
||
hppabsd_gregset_supplies_p (int regnum)
|
||
{
|
||
return (regnum >= HPPA_R0_REGNUM && regnum <= HPPA_PCOQ_TAIL_REGNUM);
|
||
}
|
||
|
||
/* Supply the general-purpose registers stored in GREGS to REGCACHE. */
|
||
|
||
static void
|
||
hppabsd_supply_gregset (struct regcache *regcache, const void *gregs)
|
||
{
|
||
const char *regs = gregs;
|
||
int regnum;
|
||
|
||
for (regnum = HPPA_R1_REGNUM; regnum <= HPPA_R31_REGNUM; regnum++)
|
||
regcache_raw_supply (regcache, regnum, regs + regnum * 4);
|
||
|
||
regcache_raw_supply (regcache, HPPA_SAR_REGNUM, regs);
|
||
regcache_raw_supply (regcache, HPPA_PCOQ_HEAD_REGNUM, regs + 32 * 4);
|
||
regcache_raw_supply (regcache, HPPA_PCOQ_TAIL_REGNUM, regs + 33 * 4);
|
||
}
|
||
|
||
/* Collect the general-purpose registers from REGCACHE and store them
|
||
in GREGS. */
|
||
|
||
static void
|
||
hppabsd_collect_gregset (const struct regcache *regcache,
|
||
void *gregs, int regnum)
|
||
{
|
||
char *regs = gregs;
|
||
int i;
|
||
|
||
for (i = HPPA_R1_REGNUM; i <= HPPA_R31_REGNUM; i++)
|
||
{
|
||
if (regnum == -1 || regnum == i)
|
||
regcache_raw_collect (regcache, i, regs + i * 4);
|
||
}
|
||
|
||
if (regnum == -1 || regnum == HPPA_SAR_REGNUM)
|
||
regcache_raw_collect (regcache, HPPA_SAR_REGNUM, regs);
|
||
if (regnum == -1 || regnum == HPPA_PCOQ_HEAD_REGNUM)
|
||
regcache_raw_collect (regcache, HPPA_PCOQ_HEAD_REGNUM, regs + 32 * 4);
|
||
if (regnum == -1 || regnum == HPPA_PCOQ_TAIL_REGNUM)
|
||
regcache_raw_collect (regcache, HPPA_PCOQ_TAIL_REGNUM, regs + 33 * 4);
|
||
}
|
||
|
||
|
||
/* Fetch register REGNUM from the inferior. If REGNUM is -1, do this
|
||
for all registers (including the floating-point registers). */
|
||
|
||
static void
|
||
hppabsd_fetch_registers (int regnum)
|
||
{
|
||
struct regcache *regcache = current_regcache;
|
||
|
||
if (regnum == -1 || hppabsd_gregset_supplies_p (regnum))
|
||
{
|
||
struct reg regs;
|
||
|
||
if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
|
||
(PTRACE_TYPE_ARG3) ®s, 0) == -1)
|
||
perror_with_name (_("Couldn't get registers"));
|
||
|
||
hppabsd_supply_gregset (regcache, ®s);
|
||
}
|
||
}
|
||
|
||
/* Store register REGNUM back into the inferior. If REGNUM is -1, do
|
||
this for all registers (including the floating-point registers). */
|
||
|
||
static void
|
||
hppabsd_store_registers (int regnum)
|
||
{
|
||
if (regnum == -1 || hppabsd_gregset_supplies_p (regnum))
|
||
{
|
||
struct reg regs;
|
||
|
||
if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
|
||
(PTRACE_TYPE_ARG3) ®s, 0) == -1)
|
||
perror_with_name (_("Couldn't get registers"));
|
||
|
||
hppabsd_collect_gregset (current_regcache, ®s, regnum);
|
||
|
||
if (ptrace (PT_SETREGS, PIDGET (inferior_ptid),
|
||
(PTRACE_TYPE_ARG3) ®s, 0) == -1)
|
||
perror_with_name (_("Couldn't write registers"));
|
||
}
|
||
}
|
||
|
||
/* Provide a prototype to silence -Wmissing-prototypes. */
|
||
void _initialize_hppabsd_nat (void);
|
||
|
||
void
|
||
_initialize_hppabsd_nat (void)
|
||
{
|
||
struct target_ops *t;
|
||
|
||
/* Add in local overrides. */
|
||
t = inf_ptrace_target ();
|
||
t->to_fetch_registers = hppabsd_fetch_registers;
|
||
t->to_store_registers = hppabsd_store_registers;
|
||
add_target (t);
|
||
}
|