[deliverable/binutils-gdb.git] / gdb / ppc-linux-nat.c

/* PPC linux native support.
   Copyright 1988, 1989, 1991, 1992, 1994, 1996, 2000, 2001
   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 "frame.h"
#include "inferior.h"
#include "gdbcore.h"
#include "regcache.h"

#include <sys/types.h>
#include <sys/param.h>
#include <signal.h>
#include <sys/user.h>
#include <sys/ioctl.h>
#include <sys/wait.h>
#include <fcntl.h>
#include <sys/procfs.h>
#include <sys/ptrace.h>

/* Prototypes for supply_gregset etc. */
#include "gregset.h"
#include "ppc-tdep.h"

#ifndef PT_READ_U
#define PT_READ_U PTRACE_PEEKUSR
#endif
#ifndef PT_WRITE_U
#define PT_WRITE_U PTRACE_POKEUSR
#endif

/* Default the type of the ptrace transfer to int.  */
#ifndef PTRACE_XFER_TYPE
#define PTRACE_XFER_TYPE int
#endif

int
kernel_u_size (void)
{
  return (sizeof (struct user));
}

/* *INDENT-OFF* */
/* registers layout, as presented by the ptrace interface:
PT_R0, PT_R1, PT_R2, PT_R3, PT_R4, PT_R5, PT_R6, PT_R7,
PT_R8, PT_R9, PT_R10, PT_R11, PT_R12, PT_R13, PT_R14, PT_R15,
PT_R16, PT_R17, PT_R18, PT_R19, PT_R20, PT_R21, PT_R22, PT_R23,
PT_R24, PT_R25, PT_R26, PT_R27, PT_R28, PT_R29, PT_R30, PT_R31,
PT_FPR0, PT_FPR0 + 2, PT_FPR0 + 4, PT_FPR0 + 6, PT_FPR0 + 8, PT_FPR0 + 10, PT_FPR0 + 12, PT_FPR0 + 14,
PT_FPR0 + 16, PT_FPR0 + 18, PT_FPR0 + 20, PT_FPR0 + 22, PT_FPR0 + 24, PT_FPR0 + 26, PT_FPR0 + 28, PT_FPR0 + 30,
PT_FPR0 + 32, PT_FPR0 + 34, PT_FPR0 + 36, PT_FPR0 + 38, PT_FPR0 + 40, PT_FPR0 + 42, PT_FPR0 + 44, PT_FPR0 + 46,
PT_FPR0 + 48, PT_FPR0 + 50, PT_FPR0 + 52, PT_FPR0 + 54, PT_FPR0 + 56, PT_FPR0 + 58, PT_FPR0 + 60, PT_FPR0 + 62,
PT_NIP, PT_MSR, PT_CCR, PT_LNK, PT_CTR, PT_XER, PT_MQ */
/* *INDENT_ON * */

static int
ppc_register_u_addr (int regno)
{
  int u_addr = -1;
  struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);

  /* General purpose registers occupy 1 slot each in the buffer */
  if (regno >= tdep->ppc_gp0_regnum && regno <= tdep->ppc_gplast_regnum )
    u_addr =  ((PT_R0 + regno) * 4);

  /* Floating point regs: 2 slots each */
  if (regno >= FP0_REGNUM && regno <= FPLAST_REGNUM)
    u_addr = ((PT_FPR0 + (regno - FP0_REGNUM) * 2) * 4);

  /* UISA special purpose registers: 1 slot each */
  if (regno == PC_REGNUM)
    u_addr = PT_NIP * 4;
  if (regno == tdep->ppc_lr_regnum)
    u_addr = PT_LNK * 4;
  if (regno == tdep->ppc_cr_regnum)
    u_addr = PT_CCR * 4;
  if (regno == tdep->ppc_xer_regnum)
    u_addr = PT_XER * 4;
  if (regno == tdep->ppc_ctr_regnum)
    u_addr = PT_CTR * 4;
  if (regno == tdep->ppc_mq_regnum)
    u_addr = PT_MQ * 4;
  if (regno == tdep->ppc_ps_regnum)
    u_addr = PT_MSR * 4;

  return u_addr;
}

static int
ppc_ptrace_cannot_fetch_store_register (int regno)
{
  return (ppc_register_u_addr (regno) == -1);
}

static void
fetch_register (int regno)
{
  /* This isn't really an address.  But ptrace thinks of it as one.  */
  char mess[128];              /* For messages */
  register int i;
  unsigned int offset;         /* Offset of registers within the u area. */
  char *buf = alloca (MAX_REGISTER_RAW_SIZE);
  int tid;
  CORE_ADDR regaddr = ppc_register_u_addr (regno);

  if (regaddr == -1)
    {
      memset (buf, '\0', REGISTER_RAW_SIZE (regno));   /* Supply zeroes */
      supply_register (regno, buf);
      return;
    }

  /* Overload thread id onto process id */
  if ((tid = TIDGET (inferior_ptid)) == 0)
    tid = PIDGET (inferior_ptid);      /* no thread id, just use process id */

  for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (PTRACE_XFER_TYPE))
    {
      errno = 0;
      *(PTRACE_XFER_TYPE *) & buf[i] = ptrace (PT_READ_U, tid,
					       (PTRACE_ARG3_TYPE) regaddr, 0);
      regaddr += sizeof (PTRACE_XFER_TYPE);
      if (errno != 0)
	{
	  sprintf (mess, "reading register %s (#%d)", 
		   REGISTER_NAME (regno), regno);
	  perror_with_name (mess);
	}
    }
  supply_register (regno, buf);
}

static void 
fetch_ppc_registers (void)
{
  int i;
  int last_register = gdbarch_tdep (current_gdbarch)->ppc_mq_regnum;
  
  for (i = 0; i <= last_register; i++)
    fetch_register (i);
}

/* Fetch registers from the child process.  Fetch all registers if
   regno == -1, otherwise fetch all general registers or all floating
   point registers depending upon the value of regno.  */
void
fetch_inferior_registers (int regno)
{
  if (regno == -1)
    fetch_ppc_registers ();
  else 
    fetch_register (regno);
}

/* Store one register. */
static void
store_register (int regno)
{
  /* This isn't really an address.  But ptrace thinks of it as one.  */
  CORE_ADDR regaddr = ppc_register_u_addr (regno);
  char mess[128];              /* For messages */
  register int i;
  unsigned int offset;         /* Offset of registers within the u area.  */
  int tid;
  char *buf = alloca (MAX_REGISTER_RAW_SIZE);

  if (regaddr == -1)
    {
      return;
    }

  /* Overload thread id onto process id */
  if ((tid = TIDGET (inferior_ptid)) == 0)
    tid = PIDGET (inferior_ptid);      /* no thread id, just use process id */

  regcache_collect (regno, buf);
  for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (PTRACE_XFER_TYPE))
    {
      errno = 0;
      ptrace (PT_WRITE_U, tid, (PTRACE_ARG3_TYPE) regaddr,
	      *(PTRACE_XFER_TYPE *) & buf[i]);
      regaddr += sizeof (PTRACE_XFER_TYPE);
      if (errno != 0)
	{
	  sprintf (mess, "writing register %s (#%d)", 
		   REGISTER_NAME (regno), regno);
	  perror_with_name (mess);
	}
    }
}

static void
store_ppc_registers (void)
{
  int i;
  int last_register = gdbarch_tdep (current_gdbarch)->ppc_mq_regnum;
  
  for (i = 0; i <= last_register; i++)
    store_register (i);
}

void
store_inferior_registers (int regno)
{
  if (regno >= 0)
    store_register (regno);
  else
    store_ppc_registers ();
}

void
supply_gregset (gdb_gregset_t *gregsetp)
{
  int regi;
  register elf_greg_t *regp = (elf_greg_t *) gregsetp;
  struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch); 

  for (regi = 0; regi < 32; regi++)
    supply_register (regi, (char *) (regp + regi));

  supply_register (PC_REGNUM, (char *) (regp + PT_NIP));
  supply_register (tdep->ppc_lr_regnum, (char *) (regp + PT_LNK));
  supply_register (tdep->ppc_cr_regnum, (char *) (regp + PT_CCR));
  supply_register (tdep->ppc_xer_regnum, (char *) (regp + PT_XER));
  supply_register (tdep->ppc_ctr_regnum, (char *) (regp + PT_CTR));
  supply_register (tdep->ppc_mq_regnum, (char *) (regp + PT_MQ));
  supply_register (tdep->ppc_ps_regnum, (char *) (regp + PT_MSR));
}

void
fill_gregset (gdb_gregset_t *gregsetp, int regno)
{
  int regi;
  elf_greg_t *regp = (elf_greg_t *) gregsetp;
  struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch); 

  for (regi = 0; regi < 32; regi++)
    {
      if ((regno == -1) || regno == regi)
        regcache_collect (regi, regp + PT_R0 + regi);
    }

  if ((regno == -1) || regno == PC_REGNUM)
    regcache_collect (PC_REGNUM, regp + PT_NIP);
  if ((regno == -1) 
      || regno == tdep->ppc_lr_regnum)
    regcache_collect (tdep->ppc_lr_regnum, regp + PT_LNK);
  if ((regno == -1)
      || regno == tdep->ppc_cr_regnum)
    regcache_collect (tdep->ppc_cr_regnum, regp + PT_CCR);
  if ((regno == -1)
      || regno == tdep->ppc_xer_regnum)
    regcache_collect (tdep->ppc_xer_regnum, regp + PT_XER);
  if ((regno == -1)
      || regno == tdep->ppc_ctr_regnum)
    regcache_collect (tdep->ppc_ctr_regnum, regp + PT_CTR);
  if ((regno == -1)
      || regno == tdep->ppc_mq_regnum)
    regcache_collect (tdep->ppc_mq_regnum, regp + PT_MQ);
  if ((regno == -1)
      || regno == tdep->ppc_ps_regnum)
    regcache_collect (tdep->ppc_ps_regnum, regp + PT_MSR);
}

void
supply_fpregset (gdb_fpregset_t * fpregsetp)
{
  int regi;
  for (regi = 0; regi < 32; regi++)
    {
      supply_register (FP0_REGNUM + regi, (char *) (*fpregsetp + regi));
    }
}

/*  Given a pointer to a floating point register set in /proc format
   (fpregset_t *), update the register specified by REGNO from gdb's idea
   of the current floating point register set.  If REGNO is -1, update
   them all. */

void
fill_fpregset (gdb_fpregset_t *fpregsetp, int regno)
{
  int regi;
  
  for (regi = 0; regi < 32; regi++)
    {
      if ((regno == -1) || (regno == FP0_REGNUM + regi))
	regcache_collect (FP0_REGNUM + regi, (char *) (*fpregsetp + regi));
    }
}
Commit	Line	Data
c877c8e6	1	/* PPC linux native support.
b6ba6518 KB	2	Copyright 1988, 1989, 1991, 1992, 1994, 1996, 2000, 2001
b6ba6518 KB	3	Free Software Foundation, Inc.
c877c8e6 KB	4
	5	This file is part of GDB.
	6
	7	This program is free software; you can redistribute it and/or modify
	8	it under the terms of the GNU General Public License as published by
	9	the Free Software Foundation; either version 2 of the License, or
	10	(at your option) any later version.
	11
	12	This program is distributed in the hope that it will be useful,
	13	but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	GNU General Public License for more details.
	16
	17	You should have received a copy of the GNU General Public License
	18	along with this program; if not, write to the Free Software
	19	Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
	20
	21	#include "defs.h"
	22	#include "frame.h"
	23	#include "inferior.h"
	24	#include "gdbcore.h"
4e052eda	25	#include "regcache.h"
c877c8e6 KB	26
	27	#include <sys/types.h>
	28	#include <sys/param.h>
	29	#include <signal.h>
	30	#include <sys/user.h>
	31	#include <sys/ioctl.h>
	32	#include <sys/wait.h>
	33	#include <fcntl.h>
	34	#include <sys/procfs.h>
45229ea4	35	#include <sys/ptrace.h>
c877c8e6	36
c60c0f5f MS	37	/* Prototypes for supply_gregset etc. */
c60c0f5f MS	38	#include "gregset.h"
16333c4f	39	#include "ppc-tdep.h"
c60c0f5f	40
45229ea4 EZ	41	#ifndef PT_READ_U
	42	#define PT_READ_U PTRACE_PEEKUSR
	43	#endif
	44	#ifndef PT_WRITE_U
	45	#define PT_WRITE_U PTRACE_POKEUSR
	46	#endif
	47
	48	/* Default the type of the ptrace transfer to int. */
	49	#ifndef PTRACE_XFER_TYPE
	50	#define PTRACE_XFER_TYPE int
	51	#endif
	52
c877c8e6	53	int
fba45db2	54	kernel_u_size (void)
c877c8e6 KB	55	{
	56	return (sizeof (struct user));
	57	}
	58
16333c4f EZ	59	/* INDENT-OFF */
	60	/* registers layout, as presented by the ptrace interface:
	61	PT_R0, PT_R1, PT_R2, PT_R3, PT_R4, PT_R5, PT_R6, PT_R7,
	62	PT_R8, PT_R9, PT_R10, PT_R11, PT_R12, PT_R13, PT_R14, PT_R15,
	63	PT_R16, PT_R17, PT_R18, PT_R19, PT_R20, PT_R21, PT_R22, PT_R23,
	64	PT_R24, PT_R25, PT_R26, PT_R27, PT_R28, PT_R29, PT_R30, PT_R31,
	65	PT_FPR0, PT_FPR0 + 2, PT_FPR0 + 4, PT_FPR0 + 6, PT_FPR0 + 8, PT_FPR0 + 10, PT_FPR0 + 12, PT_FPR0 + 14,
	66	PT_FPR0 + 16, PT_FPR0 + 18, PT_FPR0 + 20, PT_FPR0 + 22, PT_FPR0 + 24, PT_FPR0 + 26, PT_FPR0 + 28, PT_FPR0 + 30,
	67	PT_FPR0 + 32, PT_FPR0 + 34, PT_FPR0 + 36, PT_FPR0 + 38, PT_FPR0 + 40, PT_FPR0 + 42, PT_FPR0 + 44, PT_FPR0 + 46,
	68	PT_FPR0 + 48, PT_FPR0 + 50, PT_FPR0 + 52, PT_FPR0 + 54, PT_FPR0 + 56, PT_FPR0 + 58, PT_FPR0 + 60, PT_FPR0 + 62,
	69	PT_NIP, PT_MSR, PT_CCR, PT_LNK, PT_CTR, PT_XER, PT_MQ */
	70	/* INDENT_ON */
c877c8e6	71
45229ea4 EZ	72	static int
45229ea4 EZ	73	ppc_register_u_addr (int regno)
c877c8e6	74	{
16333c4f	75	int u_addr = -1;
dc5cfeb6	76	struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
16333c4f EZ	77
16333c4f EZ	78	/* General purpose registers occupy 1 slot each in the buffer */
dc5cfeb6	79	if (regno >= tdep->ppc_gp0_regnum && regno <= tdep->ppc_gplast_regnum )
45229ea4	80	u_addr = ((PT_R0 + regno) * 4);
16333c4f EZ	81
	82	/* Floating point regs: 2 slots each */
	83	if (regno >= FP0_REGNUM && regno <= FPLAST_REGNUM)
45229ea4	84	u_addr = ((PT_FPR0 + (regno - FP0_REGNUM) * 2) * 4);
16333c4f EZ	85
	86	/* UISA special purpose registers: 1 slot each */
	87	if (regno == PC_REGNUM)
45229ea4	88	u_addr = PT_NIP * 4;
dc5cfeb6	89	if (regno == tdep->ppc_lr_regnum)
45229ea4	90	u_addr = PT_LNK * 4;
dc5cfeb6	91	if (regno == tdep->ppc_cr_regnum)
45229ea4	92	u_addr = PT_CCR * 4;
dc5cfeb6	93	if (regno == tdep->ppc_xer_regnum)
45229ea4	94	u_addr = PT_XER * 4;
dc5cfeb6	95	if (regno == tdep->ppc_ctr_regnum)
45229ea4	96	u_addr = PT_CTR * 4;
dc5cfeb6	97	if (regno == tdep->ppc_mq_regnum)
45229ea4	98	u_addr = PT_MQ * 4;
dc5cfeb6	99	if (regno == tdep->ppc_ps_regnum)
45229ea4	100	u_addr = PT_MSR * 4;
16333c4f EZ	101
16333c4f EZ	102	return u_addr;
c877c8e6 KB	103	}
c877c8e6 KB	104
45229ea4 EZ	105	static int
	106	ppc_ptrace_cannot_fetch_store_register (int regno)
	107	{
	108	return (ppc_register_u_addr (regno) == -1);
	109	}
	110
	111	static void
	112	fetch_register (int regno)
	113	{
	114	/* This isn't really an address. But ptrace thinks of it as one. */
	115	char mess[128]; /* For messages */
	116	register int i;
	117	unsigned int offset; /* Offset of registers within the u area. */
	118	char *buf = alloca (MAX_REGISTER_RAW_SIZE);
	119	int tid;
	120	CORE_ADDR regaddr = ppc_register_u_addr (regno);
	121
	122	if (regaddr == -1)
	123	{
	124	memset (buf, '\0', REGISTER_RAW_SIZE (regno)); /* Supply zeroes */
	125	supply_register (regno, buf);
	126	return;
	127	}
	128
	129	/* Overload thread id onto process id */
	130	if ((tid = TIDGET (inferior_ptid)) == 0)
	131	tid = PIDGET (inferior_ptid); /* no thread id, just use process id */
	132
	133	for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (PTRACE_XFER_TYPE))
	134	{
	135	errno = 0;
	136	(PTRACE_XFER_TYPE ) & buf[i] = ptrace (PT_READ_U, tid,
	137	(PTRACE_ARG3_TYPE) regaddr, 0);
	138	regaddr += sizeof (PTRACE_XFER_TYPE);
	139	if (errno != 0)
	140	{
	141	sprintf (mess, "reading register %s (#%d)",
	142	REGISTER_NAME (regno), regno);
	143	perror_with_name (mess);
	144	}
	145	}
	146	supply_register (regno, buf);
	147	}
	148
	149	static void
	150	fetch_ppc_registers (void)
	151	{
	152	int i;
	153	int last_register = gdbarch_tdep (current_gdbarch)->ppc_mq_regnum;
	154
	155	for (i = 0; i <= last_register; i++)
	156	fetch_register (i);
	157	}
	158
	159	/* Fetch registers from the child process. Fetch all registers if
	160	regno == -1, otherwise fetch all general registers or all floating
	161	point registers depending upon the value of regno. */
	162	void
	163	fetch_inferior_registers (int regno)
	164	{
	165	if (regno == -1)
	166	fetch_ppc_registers ();
	167	else
	168	fetch_register (regno);
169	}
170
171	/* Store one register. */
172	static void
173	store_register (int regno)
174	{
175	/* This isn't really an address. But ptrace thinks of it as one. */
176	CORE_ADDR regaddr = ppc_register_u_addr (regno);
177	char mess[128]; /* For messages */
178	register int i;
179	unsigned int offset; /* Offset of registers within the u area. */
180	int tid;
181	char *buf = alloca (MAX_REGISTER_RAW_SIZE);
182
183	if (regaddr == -1)
184	{
185	return;
186	}
187
188	/* Overload thread id onto process id */
189	if ((tid = TIDGET (inferior_ptid)) == 0)
190	tid = PIDGET (inferior_ptid); /* no thread id, just use process id */
191
192	regcache_collect (regno, buf);
193	for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (PTRACE_XFER_TYPE))
194	{
195	errno = 0;
196	ptrace (PT_WRITE_U, tid, (PTRACE_ARG3_TYPE) regaddr,
197	(PTRACE_XFER_TYPE ) & buf[i]);
198	regaddr += sizeof (PTRACE_XFER_TYPE);
199	if (errno != 0)
200	{
201	sprintf (mess, "writing register %s (#%d)",
202	REGISTER_NAME (regno), regno);
203	perror_with_name (mess);
204	}
205	}
206	}
207
208	static void
209	store_ppc_registers (void)
210	{
211	int i;
212	int last_register = gdbarch_tdep (current_gdbarch)->ppc_mq_regnum;
213
214	for (i = 0; i <= last_register; i++)
215	store_register (i);
216	}
217
218	void
219	store_inferior_registers (int regno)
220	{
221	if (regno >= 0)
222	store_register (regno);
223	else
224	store_ppc_registers ();
225	}
226
50c9bd31	227	void
8ae45c11	228	supply_gregset (gdb_gregset_t *gregsetp)
c877c8e6 KB	229	{
c877c8e6 KB	230	int regi;
2ac44c70	231	register elf_greg_t regp = (elf_greg_t ) gregsetp;
dc5cfeb6	232	struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
c877c8e6 KB	233
	234	for (regi = 0; regi < 32; regi++)
	235	supply_register (regi, (char *) (regp + regi));
	236
16333c4f	237	supply_register (PC_REGNUM, (char *) (regp + PT_NIP));
dc5cfeb6 EZ	238	supply_register (tdep->ppc_lr_regnum, (char *) (regp + PT_LNK));
	239	supply_register (tdep->ppc_cr_regnum, (char *) (regp + PT_CCR));
	240	supply_register (tdep->ppc_xer_regnum, (char *) (regp + PT_XER));
	241	supply_register (tdep->ppc_ctr_regnum, (char *) (regp + PT_CTR));
	242	supply_register (tdep->ppc_mq_regnum, (char *) (regp + PT_MQ));
	243	supply_register (tdep->ppc_ps_regnum, (char *) (regp + PT_MSR));
c877c8e6 KB	244	}
c877c8e6 KB	245
fdb28ac4	246	void
8ae45c11	247	fill_gregset (gdb_gregset_t *gregsetp, int regno)
fdb28ac4 KB	248	{
fdb28ac4 KB	249	int regi;
2ac44c70	250	elf_greg_t regp = (elf_greg_t ) gregsetp;
dc5cfeb6	251	struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
fdb28ac4	252
fdb28ac4 KB	253	for (regi = 0; regi < 32; regi++)
fdb28ac4 KB	254	{
16333c4f EZ	255	if ((regno == -1) \|\| regno == regi)
16333c4f EZ	256	regcache_collect (regi, regp + PT_R0 + regi);
fdb28ac4 KB	257	}
fdb28ac4 KB	258
16333c4f EZ	259	if ((regno == -1) \|\| regno == PC_REGNUM)
16333c4f EZ	260	regcache_collect (PC_REGNUM, regp + PT_NIP);
2188cbdd	261	if ((regno == -1)
dc5cfeb6 EZ	262	\|\| regno == tdep->ppc_lr_regnum)
dc5cfeb6 EZ	263	regcache_collect (tdep->ppc_lr_regnum, regp + PT_LNK);
2188cbdd	264	if ((regno == -1)
dc5cfeb6 EZ	265	\|\| regno == tdep->ppc_cr_regnum)
dc5cfeb6 EZ	266	regcache_collect (tdep->ppc_cr_regnum, regp + PT_CCR);
2188cbdd	267	if ((regno == -1)
dc5cfeb6 EZ	268	\|\| regno == tdep->ppc_xer_regnum)
dc5cfeb6 EZ	269	regcache_collect (tdep->ppc_xer_regnum, regp + PT_XER);
2188cbdd	270	if ((regno == -1)
dc5cfeb6 EZ	271	\|\| regno == tdep->ppc_ctr_regnum)
dc5cfeb6 EZ	272	regcache_collect (tdep->ppc_ctr_regnum, regp + PT_CTR);
2188cbdd	273	if ((regno == -1)
dc5cfeb6 EZ	274	\|\| regno == tdep->ppc_mq_regnum)
dc5cfeb6 EZ	275	regcache_collect (tdep->ppc_mq_regnum, regp + PT_MQ);
2188cbdd	276	if ((regno == -1)
dc5cfeb6 EZ	277	\|\| regno == tdep->ppc_ps_regnum)
dc5cfeb6 EZ	278	regcache_collect (tdep->ppc_ps_regnum, regp + PT_MSR);
fdb28ac4 KB	279	}
fdb28ac4 KB	280
50c9bd31	281	void
8ae45c11	282	supply_fpregset (gdb_fpregset_t * fpregsetp)
c877c8e6 KB	283	{
	284	int regi;
	285	for (regi = 0; regi < 32; regi++)
	286	{
	287	supply_register (FP0_REGNUM + regi, (char ) (fpregsetp + regi));
	288	}
	289	}
fdb28ac4 KB	290
	291	/* Given a pointer to a floating point register set in /proc format
	292	(fpregset_t *), update the register specified by REGNO from gdb's idea
	293	of the current floating point register set. If REGNO is -1, update
	294	them all. */
	295
	296	void
8ae45c11	297	fill_fpregset (gdb_fpregset_t *fpregsetp, int regno)
fdb28ac4 KB	298	{
fdb28ac4 KB	299	int regi;
fdb28ac4 KB	300
	301	for (regi = 0; regi < 32; regi++)
	302	{
	303	if ((regno == -1) \|\| (regno == FP0_REGNUM + regi))
f00d3753	304	regcache_collect (FP0_REGNUM + regi, (char ) (fpregsetp + regi));
fdb28ac4 KB	305	}
fdb28ac4 KB	306	}