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[/] [openrisc/] [trunk/] [gnu-old/] [gdb-7.1/] [gdb/] [hppa-linux-nat.c] - Diff between revs 834 and 842

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/* Functions specific to running GDB native on HPPA running GNU/Linux.
/* Functions specific to running GDB native on HPPA running GNU/Linux.
 
 
   Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010
   Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010
   Free Software Foundation, Inc.
   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 "gdbcore.h"
#include "gdbcore.h"
#include "regcache.h"
#include "regcache.h"
#include "gdb_string.h"
#include "gdb_string.h"
#include "inferior.h"
#include "inferior.h"
#include "target.h"
#include "target.h"
#include "linux-nat.h"
#include "linux-nat.h"
 
 
#include <sys/procfs.h>
#include <sys/procfs.h>
#include <sys/ptrace.h>
#include <sys/ptrace.h>
#include <linux/version.h>
#include <linux/version.h>
 
 
#include <asm/ptrace.h>
#include <asm/ptrace.h>
#include "hppa-linux-offsets.h"
#include "hppa-linux-offsets.h"
 
 
#include "hppa-tdep.h"
#include "hppa-tdep.h"
 
 
/* Prototypes for supply_gregset etc. */
/* Prototypes for supply_gregset etc. */
#include "gregset.h"
#include "gregset.h"
 
 
/* These must match the order of the register names.
/* These must match the order of the register names.
 
 
   Some sort of lookup table is needed because the offsets associated
   Some sort of lookup table is needed because the offsets associated
   with the registers are all over the board.  */
   with the registers are all over the board.  */
 
 
static const int u_offsets[] =
static const int u_offsets[] =
  {
  {
    /* general registers */
    /* general registers */
    -1,
    -1,
    PT_GR1,
    PT_GR1,
    PT_GR2,
    PT_GR2,
    PT_GR3,
    PT_GR3,
    PT_GR4,
    PT_GR4,
    PT_GR5,
    PT_GR5,
    PT_GR6,
    PT_GR6,
    PT_GR7,
    PT_GR7,
    PT_GR8,
    PT_GR8,
    PT_GR9,
    PT_GR9,
    PT_GR10,
    PT_GR10,
    PT_GR11,
    PT_GR11,
    PT_GR12,
    PT_GR12,
    PT_GR13,
    PT_GR13,
    PT_GR14,
    PT_GR14,
    PT_GR15,
    PT_GR15,
    PT_GR16,
    PT_GR16,
    PT_GR17,
    PT_GR17,
    PT_GR18,
    PT_GR18,
    PT_GR19,
    PT_GR19,
    PT_GR20,
    PT_GR20,
    PT_GR21,
    PT_GR21,
    PT_GR22,
    PT_GR22,
    PT_GR23,
    PT_GR23,
    PT_GR24,
    PT_GR24,
    PT_GR25,
    PT_GR25,
    PT_GR26,
    PT_GR26,
    PT_GR27,
    PT_GR27,
    PT_GR28,
    PT_GR28,
    PT_GR29,
    PT_GR29,
    PT_GR30,
    PT_GR30,
    PT_GR31,
    PT_GR31,
 
 
    PT_SAR,
    PT_SAR,
    PT_IAOQ0,
    PT_IAOQ0,
    PT_IASQ0,
    PT_IASQ0,
    PT_IAOQ1,
    PT_IAOQ1,
    PT_IASQ1,
    PT_IASQ1,
    -1, /* eiem */
    -1, /* eiem */
    PT_IIR,
    PT_IIR,
    PT_ISR,
    PT_ISR,
    PT_IOR,
    PT_IOR,
    PT_PSW,
    PT_PSW,
    -1, /* goto */
    -1, /* goto */
 
 
    PT_SR4,
    PT_SR4,
    PT_SR0,
    PT_SR0,
    PT_SR1,
    PT_SR1,
    PT_SR2,
    PT_SR2,
    PT_SR3,
    PT_SR3,
    PT_SR5,
    PT_SR5,
    PT_SR6,
    PT_SR6,
    PT_SR7,
    PT_SR7,
 
 
    -1, /* cr0 */
    -1, /* cr0 */
    -1, /* pid0 */
    -1, /* pid0 */
    -1, /* pid1 */
    -1, /* pid1 */
    -1, /* ccr */
    -1, /* ccr */
    -1, /* pid2 */
    -1, /* pid2 */
    -1, /* pid3 */
    -1, /* pid3 */
    -1, /* cr24 */
    -1, /* cr24 */
    -1, /* cr25 */
    -1, /* cr25 */
    -1, /* cr26 */
    -1, /* cr26 */
    PT_CR27,
    PT_CR27,
    -1, /* cr28 */
    -1, /* cr28 */
    -1, /* cr29 */
    -1, /* cr29 */
    -1, /* cr30 */
    -1, /* cr30 */
 
 
    /* Floating point regs.  */
    /* Floating point regs.  */
    PT_FR0,  PT_FR0 + 4,
    PT_FR0,  PT_FR0 + 4,
    PT_FR1,  PT_FR1 + 4,
    PT_FR1,  PT_FR1 + 4,
    PT_FR2,  PT_FR2 + 4,
    PT_FR2,  PT_FR2 + 4,
    PT_FR3,  PT_FR3 + 4,
    PT_FR3,  PT_FR3 + 4,
    PT_FR4,  PT_FR4 + 4,
    PT_FR4,  PT_FR4 + 4,
    PT_FR5,  PT_FR5 + 4,
    PT_FR5,  PT_FR5 + 4,
    PT_FR6,  PT_FR6 + 4,
    PT_FR6,  PT_FR6 + 4,
    PT_FR7,  PT_FR7 + 4,
    PT_FR7,  PT_FR7 + 4,
    PT_FR8,  PT_FR8 + 4,
    PT_FR8,  PT_FR8 + 4,
    PT_FR9,  PT_FR9 + 4,
    PT_FR9,  PT_FR9 + 4,
    PT_FR10, PT_FR10 + 4,
    PT_FR10, PT_FR10 + 4,
    PT_FR11, PT_FR11 + 4,
    PT_FR11, PT_FR11 + 4,
    PT_FR12, PT_FR12 + 4,
    PT_FR12, PT_FR12 + 4,
    PT_FR13, PT_FR13 + 4,
    PT_FR13, PT_FR13 + 4,
    PT_FR14, PT_FR14 + 4,
    PT_FR14, PT_FR14 + 4,
    PT_FR15, PT_FR15 + 4,
    PT_FR15, PT_FR15 + 4,
    PT_FR16, PT_FR16 + 4,
    PT_FR16, PT_FR16 + 4,
    PT_FR17, PT_FR17 + 4,
    PT_FR17, PT_FR17 + 4,
    PT_FR18, PT_FR18 + 4,
    PT_FR18, PT_FR18 + 4,
    PT_FR19, PT_FR19 + 4,
    PT_FR19, PT_FR19 + 4,
    PT_FR20, PT_FR20 + 4,
    PT_FR20, PT_FR20 + 4,
    PT_FR21, PT_FR21 + 4,
    PT_FR21, PT_FR21 + 4,
    PT_FR22, PT_FR22 + 4,
    PT_FR22, PT_FR22 + 4,
    PT_FR23, PT_FR23 + 4,
    PT_FR23, PT_FR23 + 4,
    PT_FR24, PT_FR24 + 4,
    PT_FR24, PT_FR24 + 4,
    PT_FR25, PT_FR25 + 4,
    PT_FR25, PT_FR25 + 4,
    PT_FR26, PT_FR26 + 4,
    PT_FR26, PT_FR26 + 4,
    PT_FR27, PT_FR27 + 4,
    PT_FR27, PT_FR27 + 4,
    PT_FR28, PT_FR28 + 4,
    PT_FR28, PT_FR28 + 4,
    PT_FR29, PT_FR29 + 4,
    PT_FR29, PT_FR29 + 4,
    PT_FR30, PT_FR30 + 4,
    PT_FR30, PT_FR30 + 4,
    PT_FR31, PT_FR31 + 4,
    PT_FR31, PT_FR31 + 4,
  };
  };
 
 
static CORE_ADDR
static CORE_ADDR
hppa_linux_register_addr (int regno, CORE_ADDR blockend)
hppa_linux_register_addr (int regno, CORE_ADDR blockend)
{
{
  CORE_ADDR addr;
  CORE_ADDR addr;
 
 
  if ((unsigned) regno >= ARRAY_SIZE (u_offsets))
  if ((unsigned) regno >= ARRAY_SIZE (u_offsets))
    error (_("Invalid register number %d."), regno);
    error (_("Invalid register number %d."), regno);
 
 
  if (u_offsets[regno] == -1)
  if (u_offsets[regno] == -1)
    addr = 0;
    addr = 0;
  else
  else
    {
    {
      addr = (CORE_ADDR) u_offsets[regno];
      addr = (CORE_ADDR) u_offsets[regno];
    }
    }
 
 
  return addr;
  return addr;
}
}
 
 
/*
/*
 * Registers saved in a coredump:
 * Registers saved in a coredump:
 * gr0..gr31
 * gr0..gr31
 * sr0..sr7
 * sr0..sr7
 * iaoq0..iaoq1
 * iaoq0..iaoq1
 * iasq0..iasq1
 * iasq0..iasq1
 * sar, iir, isr, ior, ipsw
 * sar, iir, isr, ior, ipsw
 * cr0, cr24..cr31
 * cr0, cr24..cr31
 * cr8,9,12,13
 * cr8,9,12,13
 * cr10, cr15
 * cr10, cr15
 */
 */
#define GR_REGNUM(_n)   (HPPA_R0_REGNUM+_n)
#define GR_REGNUM(_n)   (HPPA_R0_REGNUM+_n)
#define TR_REGNUM(_n)   (HPPA_TR0_REGNUM+_n)
#define TR_REGNUM(_n)   (HPPA_TR0_REGNUM+_n)
static const int greg_map[] =
static const int greg_map[] =
  {
  {
    GR_REGNUM(0), GR_REGNUM(1), GR_REGNUM(2), GR_REGNUM(3),
    GR_REGNUM(0), GR_REGNUM(1), GR_REGNUM(2), GR_REGNUM(3),
    GR_REGNUM(4), GR_REGNUM(5), GR_REGNUM(6), GR_REGNUM(7),
    GR_REGNUM(4), GR_REGNUM(5), GR_REGNUM(6), GR_REGNUM(7),
    GR_REGNUM(8), GR_REGNUM(9), GR_REGNUM(10), GR_REGNUM(11),
    GR_REGNUM(8), GR_REGNUM(9), GR_REGNUM(10), GR_REGNUM(11),
    GR_REGNUM(12), GR_REGNUM(13), GR_REGNUM(14), GR_REGNUM(15),
    GR_REGNUM(12), GR_REGNUM(13), GR_REGNUM(14), GR_REGNUM(15),
    GR_REGNUM(16), GR_REGNUM(17), GR_REGNUM(18), GR_REGNUM(19),
    GR_REGNUM(16), GR_REGNUM(17), GR_REGNUM(18), GR_REGNUM(19),
    GR_REGNUM(20), GR_REGNUM(21), GR_REGNUM(22), GR_REGNUM(23),
    GR_REGNUM(20), GR_REGNUM(21), GR_REGNUM(22), GR_REGNUM(23),
    GR_REGNUM(24), GR_REGNUM(25), GR_REGNUM(26), GR_REGNUM(27),
    GR_REGNUM(24), GR_REGNUM(25), GR_REGNUM(26), GR_REGNUM(27),
    GR_REGNUM(28), GR_REGNUM(29), GR_REGNUM(30), GR_REGNUM(31),
    GR_REGNUM(28), GR_REGNUM(29), GR_REGNUM(30), GR_REGNUM(31),
 
 
    HPPA_SR4_REGNUM+1, HPPA_SR4_REGNUM+2, HPPA_SR4_REGNUM+3, HPPA_SR4_REGNUM+4,
    HPPA_SR4_REGNUM+1, HPPA_SR4_REGNUM+2, HPPA_SR4_REGNUM+3, HPPA_SR4_REGNUM+4,
    HPPA_SR4_REGNUM, HPPA_SR4_REGNUM+5, HPPA_SR4_REGNUM+6, HPPA_SR4_REGNUM+7,
    HPPA_SR4_REGNUM, HPPA_SR4_REGNUM+5, HPPA_SR4_REGNUM+6, HPPA_SR4_REGNUM+7,
 
 
    HPPA_PCOQ_HEAD_REGNUM, HPPA_PCOQ_TAIL_REGNUM,
    HPPA_PCOQ_HEAD_REGNUM, HPPA_PCOQ_TAIL_REGNUM,
    HPPA_PCSQ_HEAD_REGNUM, HPPA_PCSQ_TAIL_REGNUM,
    HPPA_PCSQ_HEAD_REGNUM, HPPA_PCSQ_TAIL_REGNUM,
 
 
    HPPA_SAR_REGNUM, HPPA_IIR_REGNUM, HPPA_ISR_REGNUM, HPPA_IOR_REGNUM,
    HPPA_SAR_REGNUM, HPPA_IIR_REGNUM, HPPA_ISR_REGNUM, HPPA_IOR_REGNUM,
    HPPA_IPSW_REGNUM, HPPA_RCR_REGNUM,
    HPPA_IPSW_REGNUM, HPPA_RCR_REGNUM,
 
 
    TR_REGNUM(0), TR_REGNUM(1), TR_REGNUM(2), TR_REGNUM(3),
    TR_REGNUM(0), TR_REGNUM(1), TR_REGNUM(2), TR_REGNUM(3),
    TR_REGNUM(4), TR_REGNUM(5), TR_REGNUM(6), TR_REGNUM(7),
    TR_REGNUM(4), TR_REGNUM(5), TR_REGNUM(6), TR_REGNUM(7),
 
 
    HPPA_PID0_REGNUM, HPPA_PID1_REGNUM, HPPA_PID2_REGNUM, HPPA_PID3_REGNUM,
    HPPA_PID0_REGNUM, HPPA_PID1_REGNUM, HPPA_PID2_REGNUM, HPPA_PID3_REGNUM,
    HPPA_CCR_REGNUM, HPPA_EIEM_REGNUM,
    HPPA_CCR_REGNUM, HPPA_EIEM_REGNUM,
  };
  };
 
 
 
 
 
 
/* Fetch one register.  */
/* Fetch one register.  */
 
 
static void
static void
fetch_register (struct regcache *regcache, int regno)
fetch_register (struct regcache *regcache, int regno)
{
{
  struct gdbarch *gdbarch = get_regcache_arch (regcache);
  struct gdbarch *gdbarch = get_regcache_arch (regcache);
  int tid;
  int tid;
  int val;
  int val;
 
 
  if (gdbarch_cannot_fetch_register (gdbarch, regno))
  if (gdbarch_cannot_fetch_register (gdbarch, regno))
    {
    {
      regcache_raw_supply (regcache, regno, NULL);
      regcache_raw_supply (regcache, regno, NULL);
      return;
      return;
    }
    }
 
 
  /* GNU/Linux LWP ID's are process ID's.  */
  /* GNU/Linux LWP ID's are process ID's.  */
  tid = TIDGET (inferior_ptid);
  tid = TIDGET (inferior_ptid);
  if (tid == 0)
  if (tid == 0)
    tid = PIDGET (inferior_ptid); /* Not a threaded program.  */
    tid = PIDGET (inferior_ptid); /* Not a threaded program.  */
 
 
  errno = 0;
  errno = 0;
  val = ptrace (PTRACE_PEEKUSER, tid, hppa_linux_register_addr (regno, 0), 0);
  val = ptrace (PTRACE_PEEKUSER, tid, hppa_linux_register_addr (regno, 0), 0);
  if (errno != 0)
  if (errno != 0)
    error (_("Couldn't read register %s (#%d): %s."),
    error (_("Couldn't read register %s (#%d): %s."),
           gdbarch_register_name (gdbarch, regno),
           gdbarch_register_name (gdbarch, regno),
           regno, safe_strerror (errno));
           regno, safe_strerror (errno));
 
 
  regcache_raw_supply (regcache, regno, &val);
  regcache_raw_supply (regcache, regno, &val);
}
}
 
 
/* Store one register. */
/* Store one register. */
 
 
static void
static void
store_register (const struct regcache *regcache, int regno)
store_register (const struct regcache *regcache, int regno)
{
{
  struct gdbarch *gdbarch = get_regcache_arch (regcache);
  struct gdbarch *gdbarch = get_regcache_arch (regcache);
  int tid;
  int tid;
  int val;
  int val;
 
 
  if (gdbarch_cannot_store_register (gdbarch, regno))
  if (gdbarch_cannot_store_register (gdbarch, regno))
    return;
    return;
 
 
  /* GNU/Linux LWP ID's are process ID's.  */
  /* GNU/Linux LWP ID's are process ID's.  */
  tid = TIDGET (inferior_ptid);
  tid = TIDGET (inferior_ptid);
  if (tid == 0)
  if (tid == 0)
    tid = PIDGET (inferior_ptid); /* Not a threaded program.  */
    tid = PIDGET (inferior_ptid); /* Not a threaded program.  */
 
 
  errno = 0;
  errno = 0;
  regcache_raw_collect (regcache, regno, &val);
  regcache_raw_collect (regcache, regno, &val);
  ptrace (PTRACE_POKEUSER, tid, hppa_linux_register_addr (regno, 0), val);
  ptrace (PTRACE_POKEUSER, tid, hppa_linux_register_addr (regno, 0), val);
  if (errno != 0)
  if (errno != 0)
    error (_("Couldn't write register %s (#%d): %s."),
    error (_("Couldn't write register %s (#%d): %s."),
           gdbarch_register_name (gdbarch, regno),
           gdbarch_register_name (gdbarch, regno),
           regno, safe_strerror (errno));
           regno, safe_strerror (errno));
}
}
 
 
/* Fetch registers from the child process.  Fetch all registers if
/* Fetch registers from the child process.  Fetch all registers if
   regno == -1, otherwise fetch all general registers or all floating
   regno == -1, otherwise fetch all general registers or all floating
   point registers depending upon the value of regno.  */
   point registers depending upon the value of regno.  */
 
 
static void
static void
hppa_linux_fetch_inferior_registers (struct target_ops *ops,
hppa_linux_fetch_inferior_registers (struct target_ops *ops,
                                     struct regcache *regcache, int regno)
                                     struct regcache *regcache, int regno)
{
{
  if (-1 == regno)
  if (-1 == regno)
    {
    {
      for (regno = 0;
      for (regno = 0;
           regno < gdbarch_num_regs (get_regcache_arch (regcache));
           regno < gdbarch_num_regs (get_regcache_arch (regcache));
           regno++)
           regno++)
        fetch_register (regcache, regno);
        fetch_register (regcache, regno);
    }
    }
  else
  else
    {
    {
      fetch_register (regcache, regno);
      fetch_register (regcache, regno);
    }
    }
}
}
 
 
/* Store registers back into the inferior.  Store all registers if
/* Store registers back into the inferior.  Store all registers if
   regno == -1, otherwise store all general registers or all floating
   regno == -1, otherwise store all general registers or all floating
   point registers depending upon the value of regno.  */
   point registers depending upon the value of regno.  */
 
 
static void
static void
hppa_linux_store_inferior_registers (struct target_ops *ops,
hppa_linux_store_inferior_registers (struct target_ops *ops,
                                     struct regcache *regcache, int regno)
                                     struct regcache *regcache, int regno)
{
{
  if (-1 == regno)
  if (-1 == regno)
    {
    {
      for (regno = 0;
      for (regno = 0;
           regno < gdbarch_num_regs (get_regcache_arch (regcache));
           regno < gdbarch_num_regs (get_regcache_arch (regcache));
           regno++)
           regno++)
        store_register (regcache, regno);
        store_register (regcache, regno);
    }
    }
  else
  else
    {
    {
      store_register (regcache, regno);
      store_register (regcache, regno);
    }
    }
}
}
 
 
/* Fill GDB's register array with the general-purpose register values
/* Fill GDB's register array with the general-purpose register values
   in *gregsetp.  */
   in *gregsetp.  */
 
 
void
void
supply_gregset (struct regcache *regcache, const gdb_gregset_t *gregsetp)
supply_gregset (struct regcache *regcache, const gdb_gregset_t *gregsetp)
{
{
  int i;
  int i;
  const greg_t *regp = (const elf_greg_t *) gregsetp;
  const greg_t *regp = (const elf_greg_t *) gregsetp;
 
 
  for (i = 0; i < sizeof (greg_map) / sizeof (greg_map[0]); i++, regp++)
  for (i = 0; i < sizeof (greg_map) / sizeof (greg_map[0]); i++, regp++)
    {
    {
      int regno = greg_map[i];
      int regno = greg_map[i];
      regcache_raw_supply (regcache, regno, regp);
      regcache_raw_supply (regcache, regno, regp);
    }
    }
}
}
 
 
/* Fill register regno (if it is a general-purpose register) in
/* Fill register regno (if it is a general-purpose register) in
   *gregsetp with the appropriate value from GDB's register array.
   *gregsetp with the appropriate value from GDB's register array.
   If regno is -1, do this for all registers.  */
   If regno is -1, do this for all registers.  */
 
 
void
void
fill_gregset (const struct regcache *regcache,
fill_gregset (const struct regcache *regcache,
              gdb_gregset_t *gregsetp, int regno)
              gdb_gregset_t *gregsetp, int regno)
{
{
  int i;
  int i;
 
 
  for (i = 0; i < sizeof (greg_map) / sizeof (greg_map[0]); i++)
  for (i = 0; i < sizeof (greg_map) / sizeof (greg_map[0]); i++)
    {
    {
      int mregno = greg_map[i];
      int mregno = greg_map[i];
 
 
      if (regno == -1 || regno == mregno)
      if (regno == -1 || regno == mregno)
        {
        {
          regcache_raw_collect(regcache, mregno, &(*gregsetp)[i]);
          regcache_raw_collect(regcache, mregno, &(*gregsetp)[i]);
        }
        }
    }
    }
}
}
 
 
/*  Given a pointer to a floating point register set in /proc format
/*  Given a pointer to a floating point register set in /proc format
   (fpregset_t *), unpack the register contents and supply them as gdb's
   (fpregset_t *), unpack the register contents and supply them as gdb's
   idea of the current floating point register values. */
   idea of the current floating point register values. */
 
 
void
void
supply_fpregset (struct regcache *regcache, const gdb_fpregset_t *fpregsetp)
supply_fpregset (struct regcache *regcache, const gdb_fpregset_t *fpregsetp)
{
{
  int regi;
  int regi;
  const char *from;
  const char *from;
 
 
  for (regi = 0; regi <= 31; regi++)
  for (regi = 0; regi <= 31; regi++)
    {
    {
      from = (const char *) &((*fpregsetp)[regi]);
      from = (const char *) &((*fpregsetp)[regi]);
      regcache_raw_supply (regcache, 2*regi + HPPA_FP0_REGNUM, from);
      regcache_raw_supply (regcache, 2*regi + HPPA_FP0_REGNUM, from);
      regcache_raw_supply (regcache, 2*regi + HPPA_FP0_REGNUM + 1, from + 4);
      regcache_raw_supply (regcache, 2*regi + HPPA_FP0_REGNUM + 1, from + 4);
    }
    }
}
}
 
 
/*  Given a pointer to a floating point register set in /proc format
/*  Given a pointer to a floating point register set in /proc format
   (fpregset_t *), update the register specified by REGNO from gdb's idea
   (fpregset_t *), update the register specified by REGNO from gdb's idea
   of the current floating point register set.  If REGNO is -1, update
   of the current floating point register set.  If REGNO is -1, update
   them all. */
   them all. */
 
 
void
void
fill_fpregset (const struct regcache *regcache,
fill_fpregset (const struct regcache *regcache,
               gdb_fpregset_t *fpregsetp, int regno)
               gdb_fpregset_t *fpregsetp, int regno)
{
{
  int i;
  int i;
 
 
  for (i = HPPA_FP0_REGNUM; i < HPPA_FP0_REGNUM + 32 * 2; i++)
  for (i = HPPA_FP0_REGNUM; i < HPPA_FP0_REGNUM + 32 * 2; i++)
   {
   {
      /* Gross.  fpregset_t is double, registers[x] has single
      /* Gross.  fpregset_t is double, registers[x] has single
         precision reg.  */
         precision reg.  */
      char *to = (char *) &((*fpregsetp)[(i - HPPA_FP0_REGNUM) / 2]);
      char *to = (char *) &((*fpregsetp)[(i - HPPA_FP0_REGNUM) / 2]);
      if ((i - HPPA_FP0_REGNUM) & 1)
      if ((i - HPPA_FP0_REGNUM) & 1)
        to += 4;
        to += 4;
      regcache_raw_collect (regcache, i, to);
      regcache_raw_collect (regcache, i, to);
   }
   }
}
}
 
 
void _initialize_hppa_linux_nat (void);
void _initialize_hppa_linux_nat (void);
 
 
void
void
_initialize_hppa_linux_nat (void)
_initialize_hppa_linux_nat (void)
{
{
  struct target_ops *t;
  struct target_ops *t;
 
 
  /* Fill in the generic GNU/Linux methods.  */
  /* Fill in the generic GNU/Linux methods.  */
  t = linux_target ();
  t = linux_target ();
 
 
  /* Add our register access methods.  */
  /* Add our register access methods.  */
  t->to_fetch_registers = hppa_linux_fetch_inferior_registers;
  t->to_fetch_registers = hppa_linux_fetch_inferior_registers;
  t->to_store_registers = hppa_linux_store_inferior_registers;
  t->to_store_registers = hppa_linux_store_inferior_registers;
 
 
  /* Register the target.  */
  /* Register the target.  */
  linux_nat_add_target (t);
  linux_nat_add_target (t);
}
}
 
 

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