[thirdparty/binutils-gdb.git] / gdb / cxux-nat.c

/* Native support for Motorola 88k running Harris CX/UX.
   Copyright 1988, 1990, 1991, 1992, 1993, 1994 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 <sys/types.h>
#include <sys/param.h>
#include <sys/dir.h>
#include <signal.h>
#include "gdbcore.h"
#include <sys/user.h>

#include "bfd.h"
#include "symfile.h"
#include "objfiles.h"
#include "symtab.h"

#ifndef USER			/* added to support BCS ptrace_user */
#define USER ptrace_user
#endif
#include <sys/ioctl.h>
#include <fcntl.h>
#include <sys/file.h>
#include "gdb_stat.h"

#include "symtab.h"
#include "setjmp.h"
#include "value.h"

#include <sys/ptrace.h>

/* CX/UX provides them already, but as word offsets instead of char offsets */
#define SXIP_OFFSET (PT_SXIP * 4)
#define SNIP_OFFSET (PT_SNIP * 4)
#define SFIP_OFFSET (PT_SFIP * 4)
#define PSR_OFFSET  (PT_PSR  * sizeof(int))
#define FPSR_OFFSET (PT_FPSR * sizeof(int))
#define FPCR_OFFSET (PT_FPCR * sizeof(int))

#define XREGADDR(r) (((char *)&u.pt_x0-(char *)&u) + \
                     ((r)-X0_REGNUM)*sizeof(X_REGISTER_RAW_TYPE))

extern int have_symbol_file_p ();

extern jmp_buf stack_jmp;

extern int errno;

void
fetch_inferior_registers (regno)
     int regno;			/* Original value discarded */
{
  register unsigned int regaddr;
  char buf[MAX_REGISTER_RAW_SIZE];
  register int i;

  struct USER u;
  unsigned int offset;

  offset = (char *) &u.pt_r0 - (char *) &u;
  regaddr = offset;		/* byte offset to r0; */

/*  offset = ptrace (3, inferior_pid, (PTRACE_ARG3_TYPE) offset, 0) - KERNEL_U_ADDR; */
  for (regno = 0; regno < PC_REGNUM; regno++)
    {
      /*regaddr = register_addr (regno, offset); */
      /* 88k enhancement  */

      for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (int))
	{
	  *(int *) &buf[i] = ptrace (3, inferior_pid,
				     (PTRACE_ARG3_TYPE) regaddr, 0);
	  regaddr += sizeof (int);
	}
      supply_register (regno, buf);
    }
  /* now load up registers 32-37; special pc registers */
  *(int *) &buf[0] = ptrace (3, inferior_pid,
			     (PTRACE_ARG3_TYPE) PSR_OFFSET, 0);
  supply_register (PSR_REGNUM, buf);
  *(int *) &buf[0] = ptrace (3, inferior_pid,
			     (PTRACE_ARG3_TYPE) FPSR_OFFSET, 0);
  supply_register (FPSR_REGNUM, buf);
  *(int *) &buf[0] = ptrace (3, inferior_pid,
			     (PTRACE_ARG3_TYPE) FPCR_OFFSET, 0);
  supply_register (FPCR_REGNUM, buf);
  *(int *) &buf[0] = ptrace (3, inferior_pid,
			     (PTRACE_ARG3_TYPE) SXIP_OFFSET, 0);
  supply_register (SXIP_REGNUM, buf);
  *(int *) &buf[0] = ptrace (3, inferior_pid,
			     (PTRACE_ARG3_TYPE) SNIP_OFFSET, 0);
  supply_register (SNIP_REGNUM, buf);
  *(int *) &buf[0] = ptrace (3, inferior_pid,
			     (PTRACE_ARG3_TYPE) SFIP_OFFSET, 0);
  supply_register (SFIP_REGNUM, buf);

  if (target_is_m88110)
    {
      for (regaddr = XREGADDR (X0_REGNUM), regno = X0_REGNUM;
	   regno < NUM_REGS;
	   regno++, regaddr += 16)
	{
	  X_REGISTER_RAW_TYPE xval;

	  *(int *) &xval.w1 = ptrace (3, inferior_pid,
				      (PTRACE_ARG3_TYPE) regaddr, 0);
	  *(int *) &xval.w2 = ptrace (3, inferior_pid,
				      (PTRACE_ARG3_TYPE) (regaddr + 4), 0);
	  *(int *) &xval.w3 = ptrace (3, inferior_pid,
				      (PTRACE_ARG3_TYPE) (regaddr + 8), 0);
	  *(int *) &xval.w4 = ptrace (3, inferior_pid,
				      (PTRACE_ARG3_TYPE) (regaddr + 12), 0);
	  supply_register (regno, (void *) &xval);
	}
    }
}

/* Store our register values back into the inferior.
   If REGNO is -1, do this for all registers.
   Otherwise, REGNO specifies which register (so we can save time).  */

void
store_inferior_registers (regno)
     int regno;
{
  register unsigned int regaddr;
  char buf[80];

  struct USER u;

  unsigned int offset = (char *) &u.pt_r0 - (char *) &u;

  regaddr = offset;

  /* Don't try to deal with EXIP_REGNUM or ENIP_REGNUM, because I think either
     svr3 doesn't run on an 88110, or the kernel isolates the different (not
     completely sure this is true, but seems to be.  */
  if (regno >= 0)
    {
      /*      regaddr = register_addr (regno, offset); */
      if (regno < PC_REGNUM)
	{
	  regaddr = offset + regno * sizeof (int);
	  errno = 0;
	  ptrace (6, inferior_pid,
		  (PTRACE_ARG3_TYPE) regaddr, read_register (regno));
	  if (errno != 0)
	    {
	      sprintf (buf, "writing register number %d", regno);
	      perror_with_name (buf);
	    }
	}
      else if (regno == PSR_REGNUM)
	ptrace (6, inferior_pid,
		(PTRACE_ARG3_TYPE) PSR_OFFSET, read_register (regno));
      else if (regno == FPSR_REGNUM)
	ptrace (6, inferior_pid,
		(PTRACE_ARG3_TYPE) FPSR_OFFSET, read_register (regno));
      else if (regno == FPCR_REGNUM)
	ptrace (6, inferior_pid,
		(PTRACE_ARG3_TYPE) FPCR_OFFSET, read_register (regno));
      else if (regno == SXIP_REGNUM)
	ptrace (6, inferior_pid,
		(PTRACE_ARG3_TYPE) SXIP_OFFSET, read_register (regno));
      else if (regno == SNIP_REGNUM)
	ptrace (6, inferior_pid,
		(PTRACE_ARG3_TYPE) SNIP_OFFSET, read_register (regno));
      else if (regno == SFIP_REGNUM)
	ptrace (6, inferior_pid,
		(PTRACE_ARG3_TYPE) SFIP_OFFSET, read_register (regno));
      else if (target_is_m88110 && regno < NUM_REGS)
	{
	  X_REGISTER_RAW_TYPE xval;

	  read_register_bytes (REGISTER_BYTE (regno), (char *) &xval,
			       sizeof (X_REGISTER_RAW_TYPE));
	  regaddr = XREGADDR (regno);
	  ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) regaddr, xval.w1);
	  ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) regaddr + 4, xval.w2);
	  ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) regaddr + 8, xval.w3);
	  ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) regaddr + 12, xval.w4);
	}
      else
	printf_unfiltered ("Bad register number for store_inferior routine\n");
    }
  else
    {
      for (regno = 0; regno < PC_REGNUM; regno++)
	{
	  /*      regaddr = register_addr (regno, offset); */
	  errno = 0;
	  regaddr = offset + regno * sizeof (int);
	  ptrace (6, inferior_pid,
		  (PTRACE_ARG3_TYPE) regaddr, read_register (regno));
	  if (errno != 0)
	    {
	      sprintf (buf, "writing register number %d", regno);
	      perror_with_name (buf);
	    }
	}
      ptrace (6, inferior_pid,
	      (PTRACE_ARG3_TYPE) PSR_OFFSET, read_register (regno));
      ptrace (6, inferior_pid,
	      (PTRACE_ARG3_TYPE) FPSR_OFFSET, read_register (regno));
      ptrace (6, inferior_pid,
	      (PTRACE_ARG3_TYPE) FPCR_OFFSET, read_register (regno));
      ptrace (6, inferior_pid,
	      (PTRACE_ARG3_TYPE) SXIP_OFFSET, read_register (SXIP_REGNUM));
      ptrace (6, inferior_pid,
	      (PTRACE_ARG3_TYPE) SNIP_OFFSET, read_register (SNIP_REGNUM));
      ptrace (6, inferior_pid,
	      (PTRACE_ARG3_TYPE) SFIP_OFFSET, read_register (SFIP_REGNUM));
      if (target_is_m88110)
	{
	  for (regno = X0_REGNUM; regno < NUM_REGS; regno++)
	    {
	      X_REGISTER_RAW_TYPE xval;

	      read_register_bytes (REGISTER_BYTE (regno), (char *) &xval,
				   sizeof (X_REGISTER_RAW_TYPE));
	      regaddr = XREGADDR (regno);
	      ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) regaddr, xval.w1);
	      ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) (regaddr + 4), xval.w2);
	      ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) (regaddr + 8), xval.w3);
	      ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) (regaddr + 12), xval.w4);
	    }
	}
    }
}

/* blockend is the address of the end of the user structure */

m88k_register_u_addr (blockend, regnum)
     int blockend, regnum;
{
  struct USER u;
  int ustart = blockend - sizeof (struct USER);

  if (regnum < PSR_REGNUM)
    return (ustart + ((int) &u.pt_r0 - (int) &u) +
	    REGISTER_SIZE * regnum);
  else if (regnum == PSR_REGNUM)
    return (ustart + ((int) &u.pt_psr) - (int) &u);
  else if (regnum == FPSR_REGNUM)
    return (ustart + ((int) &u.pt_fpsr) - (int) &u);
  else if (regnum == FPCR_REGNUM)
    return (ustart + ((int) &u.pt_fpcr) - (int) &u);
  else if (regnum == SXIP_REGNUM)
    return (ustart + SXIP_OFFSET);
  else if (regnum == SNIP_REGNUM)
    return (ustart + SNIP_OFFSET);
  else if (regnum == SFIP_REGNUM)
    return (ustart + SFIP_OFFSET);
  else if (target_is_m88110)
    return (ustart + ((int) &u.pt_x0 - (int) &u) +	/* Must be X register */
	    sizeof (u.pt_x0) * (regnum - X0_REGNUM));
  else
    return (blockend + REGISTER_SIZE * regnum);
}

#ifdef USE_PROC_FS

#include <sys/procfs.h>

/*  Given a pointer to a general register set in /proc format (gregset_t *),
   unpack the register contents and supply them as gdb's idea of the current
   register values. */

void
supply_gregset (gregsetp)
     gregset_t *gregsetp;
{
  register int regi;
  register greg_t *regp = (greg_t *) gregsetp;

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

  supply_register (SXIP_REGNUM, (char *) (regp + R_XIP));
  supply_register (SNIP_REGNUM, (char *) (regp + R_NIP));
  supply_register (SFIP_REGNUM, (char *) (regp + R_FIP));
  supply_register (PSR_REGNUM, (char *) (regp + R_PSR));
  supply_register (FPSR_REGNUM, (char *) (regp + R_FPSR));
  supply_register (FPCR_REGNUM, (char *) (regp + R_FPCR));
}

void
fill_gregset (gregsetp, regno)
     gregset_t *gregsetp;
     int regno;
{
  int regi;
  register greg_t *regp = (greg_t *) gregsetp;

  for (regi = 0; regi <= R_R31; regi++)
    if ((regno == -1) || (regno == regi))
      *(regp + regi) = *(int *) &registers[REGISTER_BYTE (regi)];

  if ((regno == -1) || (regno == SXIP_REGNUM))
    *(regp + R_XIP) = *(int *) &registers[REGISTER_BYTE (SXIP_REGNUM)];
  if ((regno == -1) || (regno == SNIP_REGNUM))
    *(regp + R_NIP) = *(int *) &registers[REGISTER_BYTE (SNIP_REGNUM)];
  if ((regno == -1) || (regno == SFIP_REGNUM))
    *(regp + R_FIP) = *(int *) &registers[REGISTER_BYTE (SFIP_REGNUM)];
  if ((regno == -1) || (regno == PSR_REGNUM))
    *(regp + R_PSR) = *(int *) &registers[REGISTER_BYTE (PSR_REGNUM)];
  if ((regno == -1) || (regno == FPSR_REGNUM))
    *(regp + R_FPSR) = *(int *) &registers[REGISTER_BYTE (FPSR_REGNUM)];
  if ((regno == -1) || (regno == FPCR_REGNUM))
    *(regp + R_FPCR) = *(int *) &registers[REGISTER_BYTE (FPCR_REGNUM)];
}

#endif /* USE_PROC_FS */

/* This support adds the equivalent of adb's % command.  When
   the `add-shared-symbol-files' command is given, this routine scans 
   the dynamic linker's link map and reads the minimal symbols
   from each shared object file listed in the map. */

struct link_map
{
  unsigned long l_addr;		/* address at which object is mapped */
  char *l_name;			/* full name of loaded object */
  void *l_ld;			/* dynamic structure of object */
  struct link_map *l_next;	/* next link object */
  struct link_map *l_prev;	/* previous link object */
};

#define LINKS_MAP_POINTER "_ld_tail"
#define LIBC_FILE "/usr/lib/libc.so.1"
#define SHARED_OFFSET 0xf0001000

#ifndef PATH_MAX
#define PATH_MAX 1023		/* maximum size of path name on OS */
#endif

void
add_shared_symbol_files ()
{
  void *desc;
  struct link_map *ld_map, *lm, lms;
  struct minimal_symbol *minsym;
  struct objfile *objfile;
  char *path_name;

  if (!inferior_pid)
    {
      warning ("The program has not yet been started.");
      return;
    }

  objfile = symbol_file_add (LIBC_FILE, 0, 0, 0, 0, 1, 0, 0);
  minsym = lookup_minimal_symbol (LINKS_MAP_POINTER, objfile);

  ld_map = (struct link_map *)
    read_memory_integer (((int) SYMBOL_VALUE_ADDRESS (minsym) + SHARED_OFFSET), 4);
  lm = ld_map;
  while (lm)
    {
      int local_errno = 0;

      read_memory ((CORE_ADDR) lm, (char *) &lms, sizeof (struct link_map));
      if (lms.l_name)
	{
	  if (target_read_string ((CORE_ADDR) lms.l_name, &path_name,
				  PATH_MAX, &local_errno))
	    {
	      symbol_file_add (path_name, 1, lms.l_addr, 0, 0, 0, 0, 0);
	      free (path_name);
	    }
	}
      /* traverse links in reverse order so that we get the
         the symbols the user actually gets. */
      lm = lms.l_prev;
    }

  /* Getting new symbols may change our opinion about what is
     frameless.  */
  reinit_frame_cache ();
}

#if defined(_ES_MP)

#include <sys/regset.h>

unsigned int
m88k_harris_core_register_addr (regno, reg_ptr)
     int regno, reg_ptr;
{
  unsigned int word_offset;

  switch (regno)
    {
    case PSR_REGNUM:
      word_offset = R_EPSR;
      break;
    case FPSR_REGNUM:
      word_offset = R_FPSR;
      break;
    case FPCR_REGNUM:
      word_offset = R_FPCR;
      break;
    case SXIP_REGNUM:
      word_offset = R_EXIP;
      break;
    case SNIP_REGNUM:
      word_offset = R_ENIP;
      break;
    case SFIP_REGNUM:
      word_offset = R_EFIP;
      break;
    default:
      if (regno <= FP_REGNUM)
	word_offset = regno;
      else
	word_offset = ((regno - X0_REGNUM) * 4);
    }
  return (word_offset * 4);
}

#endif /* _ES_MP */

void
_initialize_m88k_nat ()
{
#ifdef _ES_MP
  /* Enable 88110 support, as we don't support the 88100 under ES/MP.  */

  target_is_m88110 = 1;
#elif defined(_CX_UX)
  /* Determine whether we're running on an 88100 or an 88110.  */
  target_is_m88110 = (sinfo (SYSMACHINE, 0) == SYS5800);
#endif /* _CX_UX */
}

#ifdef _ES_MP
/* Given a pointer to a general register set in /proc format (gregset_t *),
   unpack the register contents and supply them as gdb's idea of the current
   register values. */

void
supply_gregset (gregsetp)
     gregset_t *gregsetp;
{
  register int regi;
  register greg_t *regp = (greg_t *) gregsetp;

  for (regi = 0; regi < R_R31; regi++)
    {
      supply_register (regi, (char *) (regp + regi));
    }
  supply_register (PSR_REGNUM, (char *) (regp + R_EPSR));
  supply_register (FPSR_REGNUM, (char *) (regp + R_FPSR));
  supply_register (FPCR_REGNUM, (char *) (regp + R_FPCR));
  supply_register (SXIP_REGNUM, (char *) (regp + R_EXIP));
  supply_register (SNIP_REGNUM, (char *) (regp + R_ENIP));
  supply_register (SFIP_REGNUM, (char *) (regp + R_EFIP));
}

/* Given a pointer to a floating point register set in /proc format
   (fpregset_t *), unpack the register contents and supply them as gdb's
   idea of the current floating point register values.  */

void
supply_fpregset (fpregsetp)
     fpregset_t *fpregsetp;
{
  register int regi;
  char *from;

  for (regi = FP0_REGNUM; regi <= FPLAST_REGNUM; regi++)
    {
      from = (char *) &((*fpregsetp)[regi - FP0_REGNUM]);
      supply_register (regi, from);
    }
}

#endif /* _ES_MP */

#ifdef _CX_UX

#include <sys/regset.h>

unsigned int
m88k_harris_core_register_addr (int regno, int reg_ptr)
{
  unsigned int word_offset;

  switch (regno)
    {
    case PSR_REGNUM:
      word_offset = R_PSR;
      break;
    case FPSR_REGNUM:
      word_offset = R_FPSR;
      break;
    case FPCR_REGNUM:
      word_offset = R_FPCR;
      break;
    case SXIP_REGNUM:
      word_offset = R_XIP;
      break;
    case SNIP_REGNUM:
      word_offset = R_NIP;
      break;
    case SFIP_REGNUM:
      word_offset = R_FIP;
      break;
    default:
      if (regno <= FP_REGNUM)
	word_offset = regno;
      else
	word_offset = ((regno - X0_REGNUM) * 4) + R_X0;
    }
  return (word_offset * 4);
}

#endif /* _CX_UX */
Commit	Line	Data
c906108c SS	1	/* Native support for Motorola 88k running Harris CX/UX.
	2	Copyright 1988, 1990, 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
	3
c5aa993b	4	This file is part of GDB.
c906108c	5
c5aa993b JM	6	This program is free software; you can redistribute it and/or modify
	7	it under the terms of the GNU General Public License as published by
	8	the Free Software Foundation; either version 2 of the License, or
	9	(at your option) any later version.
c906108c	10
c5aa993b JM	11	This program is distributed in the hope that it will be useful,
	12	but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	GNU General Public License for more details.
c906108c	15
c5aa993b JM	16	You should have received a copy of the GNU General Public License
	17	along with this program; if not, write to the Free Software
	18	Foundation, Inc., 59 Temple Place - Suite 330,
	19	Boston, MA 02111-1307, USA. */
c906108c SS	20
	21	#include "defs.h"
	22	#include "frame.h"
	23	#include "inferior.h"
	24
	25	#include <sys/types.h>
	26	#include <sys/param.h>
	27	#include <sys/dir.h>
	28	#include <signal.h>
	29	#include "gdbcore.h"
	30	#include <sys/user.h>
	31
	32	#include "bfd.h"
	33	#include "symfile.h"
	34	#include "objfiles.h"
	35	#include "symtab.h"
	36
	37	#ifndef USER /* added to support BCS ptrace_user */
	38	#define USER ptrace_user
	39	#endif
	40	#include <sys/ioctl.h>
	41	#include <fcntl.h>
	42	#include <sys/file.h>
	43	#include "gdb_stat.h"
	44
	45	#include "symtab.h"
	46	#include "setjmp.h"
	47	#include "value.h"
	48
	49	#include <sys/ptrace.h>
	50
	51	/* CX/UX provides them already, but as word offsets instead of char offsets */
	52	#define SXIP_OFFSET (PT_SXIP * 4)
	53	#define SNIP_OFFSET (PT_SNIP * 4)
	54	#define SFIP_OFFSET (PT_SFIP * 4)
	55	#define PSR_OFFSET (PT_PSR * sizeof(int))
	56	#define FPSR_OFFSET (PT_FPSR * sizeof(int))
	57	#define FPCR_OFFSET (PT_FPCR * sizeof(int))
	58
	59	#define XREGADDR(r) (((char )&u.pt_x0-(char )&u) + \
	60	((r)-X0_REGNUM)*sizeof(X_REGISTER_RAW_TYPE))
	61
c5aa993b	62	extern int have_symbol_file_p ();
c906108c SS	63
	64	extern jmp_buf stack_jmp;
	65
	66	extern int errno;
c906108c SS	67
	68	void
	69	fetch_inferior_registers (regno)
c5aa993b	70	int regno; /* Original value discarded */
c906108c SS	71	{
	72	register unsigned int regaddr;
	73	char buf[MAX_REGISTER_RAW_SIZE];
	74	register int i;
	75
	76	struct USER u;
	77	unsigned int offset;
	78
c5aa993b JM	79	offset = (char ) &u.pt_r0 - (char ) &u;
c5aa993b JM	80	regaddr = offset; /* byte offset to r0; */
c906108c SS	81
	82	/* offset = ptrace (3, inferior_pid, (PTRACE_ARG3_TYPE) offset, 0) - KERNEL_U_ADDR; */
	83	for (regno = 0; regno < PC_REGNUM; regno++)
	84	{
c5aa993b JM	85	/regaddr = register_addr (regno, offset); /
	86	/* 88k enhancement */
	87
c906108c	88	for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (int))
c5aa993b JM	89	{
c5aa993b JM	90	(int ) &buf[i] = ptrace (3, inferior_pid,
c906108c	91	(PTRACE_ARG3_TYPE) regaddr, 0);
c5aa993b JM	92	regaddr += sizeof (int);
c5aa993b JM	93	}
c906108c SS	94	supply_register (regno, buf);
c906108c SS	95	}
c5aa993b JM	96	/* now load up registers 32-37; special pc registers */
	97	(int ) &buf[0] = ptrace (3, inferior_pid,
	98	(PTRACE_ARG3_TYPE) PSR_OFFSET, 0);
	99	supply_register (PSR_REGNUM, buf);
	100	(int ) &buf[0] = ptrace (3, inferior_pid,
	101	(PTRACE_ARG3_TYPE) FPSR_OFFSET, 0);
	102	supply_register (FPSR_REGNUM, buf);
	103	(int ) &buf[0] = ptrace (3, inferior_pid,
	104	(PTRACE_ARG3_TYPE) FPCR_OFFSET, 0);
	105	supply_register (FPCR_REGNUM, buf);
	106	(int ) &buf[0] = ptrace (3, inferior_pid,
	107	(PTRACE_ARG3_TYPE) SXIP_OFFSET, 0);
	108	supply_register (SXIP_REGNUM, buf);
	109	(int ) &buf[0] = ptrace (3, inferior_pid,
	110	(PTRACE_ARG3_TYPE) SNIP_OFFSET, 0);
	111	supply_register (SNIP_REGNUM, buf);
	112	(int ) &buf[0] = ptrace (3, inferior_pid,
	113	(PTRACE_ARG3_TYPE) SFIP_OFFSET, 0);
	114	supply_register (SFIP_REGNUM, buf);
	115
	116	if (target_is_m88110)
	117	{
	118	for (regaddr = XREGADDR (X0_REGNUM), regno = X0_REGNUM;
	119	regno < NUM_REGS;
	120	regno++, regaddr += 16)
	121	{
	122	X_REGISTER_RAW_TYPE xval;
	123
	124	(int ) &xval.w1 = ptrace (3, inferior_pid,
	125	(PTRACE_ARG3_TYPE) regaddr, 0);
	126	(int ) &xval.w2 = ptrace (3, inferior_pid,
	127	(PTRACE_ARG3_TYPE) (regaddr + 4), 0);
	128	(int ) &xval.w3 = ptrace (3, inferior_pid,
	129	(PTRACE_ARG3_TYPE) (regaddr + 8), 0);
	130	(int ) &xval.w4 = ptrace (3, inferior_pid,
	131	(PTRACE_ARG3_TYPE) (regaddr + 12), 0);
	132	supply_register (regno, (void *) &xval);
	133	}
	134	}
c906108c SS	135	}
	136
	137	/* Store our register values back into the inferior.
	138	If REGNO is -1, do this for all registers.
	139	Otherwise, REGNO specifies which register (so we can save time). */
	140
	141	void
	142	store_inferior_registers (regno)
	143	int regno;
	144	{
	145	register unsigned int regaddr;
	146	char buf[80];
	147
	148	struct USER u;
	149
	150	unsigned int offset = (char ) &u.pt_r0 - (char ) &u;
	151
	152	regaddr = offset;
	153
	154	/* Don't try to deal with EXIP_REGNUM or ENIP_REGNUM, because I think either
	155	svr3 doesn't run on an 88110, or the kernel isolates the different (not
	156	completely sure this is true, but seems to be. */
	157	if (regno >= 0)
	158	{
	159	/* regaddr = register_addr (regno, offset); */
	160	if (regno < PC_REGNUM)
c5aa993b	161	{
c906108c SS	162	regaddr = offset + regno * sizeof (int);
	163	errno = 0;
	164	ptrace (6, inferior_pid,
	165	(PTRACE_ARG3_TYPE) regaddr, read_register (regno));
	166	if (errno != 0)
	167	{
	168	sprintf (buf, "writing register number %d", regno);
	169	perror_with_name (buf);
	170	}
	171	}
	172	else if (regno == PSR_REGNUM)
c5aa993b JM	173	ptrace (6, inferior_pid,
c5aa993b JM	174	(PTRACE_ARG3_TYPE) PSR_OFFSET, read_register (regno));
c906108c	175	else if (regno == FPSR_REGNUM)
c5aa993b JM	176	ptrace (6, inferior_pid,
c5aa993b JM	177	(PTRACE_ARG3_TYPE) FPSR_OFFSET, read_register (regno));
c906108c	178	else if (regno == FPCR_REGNUM)
c5aa993b JM	179	ptrace (6, inferior_pid,
c5aa993b JM	180	(PTRACE_ARG3_TYPE) FPCR_OFFSET, read_register (regno));
c906108c SS	181	else if (regno == SXIP_REGNUM)
c906108c SS	182	ptrace (6, inferior_pid,
c5aa993b	183	(PTRACE_ARG3_TYPE) SXIP_OFFSET, read_register (regno));
c906108c SS	184	else if (regno == SNIP_REGNUM)
c906108c SS	185	ptrace (6, inferior_pid,
c5aa993b	186	(PTRACE_ARG3_TYPE) SNIP_OFFSET, read_register (regno));
c906108c SS	187	else if (regno == SFIP_REGNUM)
c906108c SS	188	ptrace (6, inferior_pid,
c5aa993b	189	(PTRACE_ARG3_TYPE) SFIP_OFFSET, read_register (regno));
c906108c	190	else if (target_is_m88110 && regno < NUM_REGS)
c5aa993b JM	191	{
	192	X_REGISTER_RAW_TYPE xval;
	193
	194	read_register_bytes (REGISTER_BYTE (regno), (char *) &xval,
	195	sizeof (X_REGISTER_RAW_TYPE));
	196	regaddr = XREGADDR (regno);
	197	ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) regaddr, xval.w1);
	198	ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) regaddr + 4, xval.w2);
	199	ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) regaddr + 8, xval.w3);
	200	ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) regaddr + 12, xval.w4);
	201	}
c906108c SS	202	else
	203	printf_unfiltered ("Bad register number for store_inferior routine\n");
	204	}
	205	else
c5aa993b	206	{
c906108c SS	207	for (regno = 0; regno < PC_REGNUM; regno++)
	208	{
	209	/* regaddr = register_addr (regno, offset); */
	210	errno = 0;
	211	regaddr = offset + regno * sizeof (int);
	212	ptrace (6, inferior_pid,
	213	(PTRACE_ARG3_TYPE) regaddr, read_register (regno));
	214	if (errno != 0)
	215	{
	216	sprintf (buf, "writing register number %d", regno);
	217	perror_with_name (buf);
	218	}
	219	}
	220	ptrace (6, inferior_pid,
c5aa993b JM	221	(PTRACE_ARG3_TYPE) PSR_OFFSET, read_register (regno));
	222	ptrace (6, inferior_pid,
	223	(PTRACE_ARG3_TYPE) FPSR_OFFSET, read_register (regno));
	224	ptrace (6, inferior_pid,
	225	(PTRACE_ARG3_TYPE) FPCR_OFFSET, read_register (regno));
	226	ptrace (6, inferior_pid,
	227	(PTRACE_ARG3_TYPE) SXIP_OFFSET, read_register (SXIP_REGNUM));
c906108c	228	ptrace (6, inferior_pid,
c5aa993b	229	(PTRACE_ARG3_TYPE) SNIP_OFFSET, read_register (SNIP_REGNUM));
c906108c	230	ptrace (6, inferior_pid,
c5aa993b	231	(PTRACE_ARG3_TYPE) SFIP_OFFSET, read_register (SFIP_REGNUM));
c906108c	232	if (target_is_m88110)
c5aa993b JM	233	{
	234	for (regno = X0_REGNUM; regno < NUM_REGS; regno++)
	235	{
	236	X_REGISTER_RAW_TYPE xval;
	237
	238	read_register_bytes (REGISTER_BYTE (regno), (char *) &xval,
	239	sizeof (X_REGISTER_RAW_TYPE));
	240	regaddr = XREGADDR (regno);
	241	ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) regaddr, xval.w1);
	242	ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) (regaddr + 4), xval.w2);
	243	ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) (regaddr + 8), xval.w3);
	244	ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) (regaddr + 12), xval.w4);
	245	}
	246	}
c906108c SS	247	}
	248	}
	249
	250	/* blockend is the address of the end of the user structure */
	251
	252	m88k_register_u_addr (blockend, regnum)
	253	int blockend, regnum;
	254	{
	255	struct USER u;
	256	int ustart = blockend - sizeof (struct USER);
	257
	258	if (regnum < PSR_REGNUM)
c5aa993b JM	259	return (ustart + ((int) &u.pt_r0 - (int) &u) +
c5aa993b JM	260	REGISTER_SIZE * regnum);
c906108c	261	else if (regnum == PSR_REGNUM)
c5aa993b	262	return (ustart + ((int) &u.pt_psr) - (int) &u);
c906108c	263	else if (regnum == FPSR_REGNUM)
c5aa993b	264	return (ustart + ((int) &u.pt_fpsr) - (int) &u);
c906108c	265	else if (regnum == FPCR_REGNUM)
c5aa993b	266	return (ustart + ((int) &u.pt_fpcr) - (int) &u);
c906108c	267	else if (regnum == SXIP_REGNUM)
c5aa993b	268	return (ustart + SXIP_OFFSET);
c906108c	269	else if (regnum == SNIP_REGNUM)
c5aa993b	270	return (ustart + SNIP_OFFSET);
c906108c	271	else if (regnum == SFIP_REGNUM)
c5aa993b JM	272	return (ustart + SFIP_OFFSET);
	273	else if (target_is_m88110)
	274	return (ustart + ((int) &u.pt_x0 - (int) &u) + /* Must be X register */
	275	sizeof (u.pt_x0) * (regnum - X0_REGNUM));
c906108c	276	else
c5aa993b	277	return (blockend + REGISTER_SIZE * regnum);
c906108c SS	278	}
	279
	280	#ifdef USE_PROC_FS
	281
	282	#include <sys/procfs.h>
	283
	284	/* Given a pointer to a general register set in /proc format (gregset_t *),
c5aa993b JM	285	unpack the register contents and supply them as gdb's idea of the current
c5aa993b JM	286	register values. */
c906108c SS	287
	288	void
	289	supply_gregset (gregsetp)
	290	gregset_t *gregsetp;
	291	{
c5aa993b JM	292	register int regi;
	293	register greg_t regp = (greg_t ) gregsetp;
	294
	295	for (regi = 0; regi <= SP_REGNUM; regi++)
	296	supply_register (regi, (char *) (regp + regi));
	297
	298	supply_register (SXIP_REGNUM, (char *) (regp + R_XIP));
	299	supply_register (SNIP_REGNUM, (char *) (regp + R_NIP));
	300	supply_register (SFIP_REGNUM, (char *) (regp + R_FIP));
	301	supply_register (PSR_REGNUM, (char *) (regp + R_PSR));
	302	supply_register (FPSR_REGNUM, (char *) (regp + R_FPSR));
	303	supply_register (FPCR_REGNUM, (char *) (regp + R_FPCR));
c906108c SS	304	}
	305
	306	void
	307	fill_gregset (gregsetp, regno)
	308	gregset_t *gregsetp;
	309	int regno;
	310	{
c5aa993b JM	311	int regi;
	312	register greg_t regp = (greg_t ) gregsetp;
	313
	314	for (regi = 0; regi <= R_R31; regi++)
	315	if ((regno == -1) \|\| (regno == regi))
	316	(regp + regi) = (int *) &registers[REGISTER_BYTE (regi)];
	317
	318	if ((regno == -1) \|\| (regno == SXIP_REGNUM))
	319	(regp + R_XIP) = (int *) &registers[REGISTER_BYTE (SXIP_REGNUM)];
	320	if ((regno == -1) \|\| (regno == SNIP_REGNUM))
	321	(regp + R_NIP) = (int *) &registers[REGISTER_BYTE (SNIP_REGNUM)];
	322	if ((regno == -1) \|\| (regno == SFIP_REGNUM))
	323	(regp + R_FIP) = (int *) &registers[REGISTER_BYTE (SFIP_REGNUM)];
	324	if ((regno == -1) \|\| (regno == PSR_REGNUM))
	325	(regp + R_PSR) = (int *) &registers[REGISTER_BYTE (PSR_REGNUM)];
	326	if ((regno == -1) \|\| (regno == FPSR_REGNUM))
	327	(regp + R_FPSR) = (int *) &registers[REGISTER_BYTE (FPSR_REGNUM)];
	328	if ((regno == -1) \|\| (regno == FPCR_REGNUM))
	329	(regp + R_FPCR) = (int *) &registers[REGISTER_BYTE (FPCR_REGNUM)];
c906108c SS	330	}
	331
	332	#endif /* USE_PROC_FS */
	333
	334	/* This support adds the equivalent of adb's % command. When
	335	the `add-shared-symbol-files' command is given, this routine scans
	336	the dynamic linker's link map and reads the minimal symbols
	337	from each shared object file listed in the map. */
	338
c5aa993b JM	339	struct link_map
c5aa993b JM	340	{
c906108c SS	341	unsigned long l_addr; /* address at which object is mapped */
	342	char l_name; / full name of loaded object */
	343	void l_ld; / dynamic structure of object */
	344	struct link_map l_next; / next link object */
	345	struct link_map l_prev; / previous link object */
	346	};
	347
	348	#define LINKS_MAP_POINTER "_ld_tail"
	349	#define LIBC_FILE "/usr/lib/libc.so.1"
	350	#define SHARED_OFFSET 0xf0001000
	351
	352	#ifndef PATH_MAX
	353	#define PATH_MAX 1023 /* maximum size of path name on OS */
	354	#endif
	355
	356	void
	357	add_shared_symbol_files ()
	358	{
	359	void *desc;
	360	struct link_map ld_map, lm, lms;
c5aa993b	361	struct minimal_symbol *minsym;
c906108c SS	362	struct objfile *objfile;
	363	char *path_name;
	364
c5aa993b	365	if (!inferior_pid)
c906108c SS	366	{
	367	warning ("The program has not yet been started.");
	368	return;
	369	}
	370
	371	objfile = symbol_file_add (LIBC_FILE, 0, 0, 0, 0, 1, 0, 0);
	372	minsym = lookup_minimal_symbol (LINKS_MAP_POINTER, objfile);
	373
	374	ld_map = (struct link_map *)
c5aa993b	375	read_memory_integer (((int) SYMBOL_VALUE_ADDRESS (minsym) + SHARED_OFFSET), 4);
c906108c SS	376	lm = ld_map;
	377	while (lm)
	378	{
	379	int local_errno = 0;
	380
c5aa993b	381	read_memory ((CORE_ADDR) lm, (char *) &lms, sizeof (struct link_map));
c906108c SS	382	if (lms.l_name)
c906108c SS	383	{
c5aa993b JM	384	if (target_read_string ((CORE_ADDR) lms.l_name, &path_name,
c5aa993b JM	385	PATH_MAX, &local_errno))
c906108c SS	386	{
c906108c SS	387	symbol_file_add (path_name, 1, lms.l_addr, 0, 0, 0, 0, 0);
c5aa993b	388	free (path_name);
c906108c SS	389	}
	390	}
	391	/* traverse links in reverse order so that we get the
c5aa993b	392	the symbols the user actually gets. */
c906108c SS	393	lm = lms.l_prev;
	394	}
	395
	396	/* Getting new symbols may change our opinion about what is
	397	frameless. */
	398	reinit_frame_cache ();
	399	}
	400
	401	#if defined(_ES_MP)
	402
	403	#include <sys/regset.h>
	404
	405	unsigned int
	406	m88k_harris_core_register_addr (regno, reg_ptr)
	407	int regno, reg_ptr;
	408	{
c5aa993b JM	409	unsigned int word_offset;
	410
	411	switch (regno)
	412	{
	413	case PSR_REGNUM:
	414	word_offset = R_EPSR;
	415	break;
	416	case FPSR_REGNUM:
	417	word_offset = R_FPSR;
	418	break;
	419	case FPCR_REGNUM:
	420	word_offset = R_FPCR;
	421	break;
	422	case SXIP_REGNUM:
	423	word_offset = R_EXIP;
	424	break;
	425	case SNIP_REGNUM:
	426	word_offset = R_ENIP;
	427	break;
	428	case SFIP_REGNUM:
	429	word_offset = R_EFIP;
	430	break;
	431	default:
	432	if (regno <= FP_REGNUM)
	433	word_offset = regno;
	434	else
	435	word_offset = ((regno - X0_REGNUM) * 4);
	436	}
	437	return (word_offset * 4);
c906108c SS	438	}
	439
	440	#endif /* _ES_MP */
	441
	442	void
c5aa993b	443	_initialize_m88k_nat ()
c906108c SS	444	{
c906108c SS	445	#ifdef _ES_MP
c5aa993b	446	/* Enable 88110 support, as we don't support the 88100 under ES/MP. */
c906108c	447
c5aa993b	448	target_is_m88110 = 1;
c906108c	449	#elif defined(_CX_UX)
c5aa993b JM	450	/* Determine whether we're running on an 88100 or an 88110. */
c5aa993b JM	451	target_is_m88110 = (sinfo (SYSMACHINE, 0) == SYS5800);
c906108c SS	452	#endif /* _CX_UX */
	453	}
	454
	455	#ifdef _ES_MP
	456	/* Given a pointer to a general register set in /proc format (gregset_t *),
	457	unpack the register contents and supply them as gdb's idea of the current
	458	register values. */
	459
	460	void
	461	supply_gregset (gregsetp)
	462	gregset_t *gregsetp;
	463	{
	464	register int regi;
	465	register greg_t regp = (greg_t ) gregsetp;
	466
c5aa993b	467	for (regi = 0; regi < R_R31; regi++)
c906108c SS	468	{
	469	supply_register (regi, (char *) (regp + regi));
	470	}
c5aa993b	471	supply_register (PSR_REGNUM, (char *) (regp + R_EPSR));
c906108c SS	472	supply_register (FPSR_REGNUM, (char *) (regp + R_FPSR));
	473	supply_register (FPCR_REGNUM, (char *) (regp + R_FPCR));
	474	supply_register (SXIP_REGNUM, (char *) (regp + R_EXIP));
	475	supply_register (SNIP_REGNUM, (char *) (regp + R_ENIP));
	476	supply_register (SFIP_REGNUM, (char *) (regp + R_EFIP));
	477	}
	478
	479	/* Given a pointer to a floating point register set in /proc format
	480	(fpregset_t *), unpack the register contents and supply them as gdb's
	481	idea of the current floating point register values. */
	482
c5aa993b	483	void
c906108c SS	484	supply_fpregset (fpregsetp)
	485	fpregset_t *fpregsetp;
	486	{
	487	register int regi;
	488	char *from;
c5aa993b JM	489
c5aa993b JM	490	for (regi = FP0_REGNUM; regi <= FPLAST_REGNUM; regi++)
c906108c	491	{
c5aa993b	492	from = (char ) &((fpregsetp)[regi - FP0_REGNUM]);
c906108c SS	493	supply_register (regi, from);
	494	}
	495	}
	496
	497	#endif /* _ES_MP */
	498
	499	#ifdef _CX_UX
	500
	501	#include <sys/regset.h>
	502
c5aa993b JM	503	unsigned int
c5aa993b JM	504	m88k_harris_core_register_addr (int regno, int reg_ptr)
c906108c	505	{
c5aa993b JM	506	unsigned int word_offset;
	507
	508	switch (regno)
	509	{
	510	case PSR_REGNUM:
	511	word_offset = R_PSR;
	512	break;
	513	case FPSR_REGNUM:
	514	word_offset = R_FPSR;
	515	break;
	516	case FPCR_REGNUM:
	517	word_offset = R_FPCR;
	518	break;
	519	case SXIP_REGNUM:
	520	word_offset = R_XIP;
	521	break;
	522	case SNIP_REGNUM:
	523	word_offset = R_NIP;
	524	break;
	525	case SFIP_REGNUM:
	526	word_offset = R_FIP;
	527	break;
	528	default:
	529	if (regno <= FP_REGNUM)
	530	word_offset = regno;
	531	else
	532	word_offset = ((regno - X0_REGNUM) * 4) + R_X0;
	533	}
	534	return (word_offset * 4);
c906108c SS	535	}
	536
	537	#endif /* _CX_UX */