[deliverable/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 (int regno)
{
  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 (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 (int blockend, int 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>

/* Prototypes for supply_gregset etc. */
#include "gregset.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 (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 (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)
{
  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, NULL, 0, OBJF_READNOW);
  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))
	    {
	      struct section_addr_info section_addrs;
	      memset (&section_addrs, 0, sizeof (section_addrs));
	      section_addrs.other[0].addr = lms.l_addr;
              section_addrs.other[0].name = ".text";
	      symbol_file_add (path_name, 1, &section_addrs, 0, 0);
	      xfree (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 (int regno, int 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 (void)
{
#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 (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 (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
c906108c SS	68	void
72623009	69	fetch_inferior_registers (int regno)
c906108c SS	70	{
	71	register unsigned int regaddr;
	72	char buf[MAX_REGISTER_RAW_SIZE];
	73	register int i;
	74
	75	struct USER u;
	76	unsigned int offset;
	77
c5aa993b JM	78	offset = (char ) &u.pt_r0 - (char ) &u;
c5aa993b JM	79	regaddr = offset; /* byte offset to r0; */
c906108c SS	80
	81	/* offset = ptrace (3, inferior_pid, (PTRACE_ARG3_TYPE) offset, 0) - KERNEL_U_ADDR; */
	82	for (regno = 0; regno < PC_REGNUM; regno++)
	83	{
c5aa993b JM	84	/regaddr = register_addr (regno, offset); /
	85	/* 88k enhancement */
	86
c906108c	87	for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (int))
c5aa993b JM	88	{
c5aa993b JM	89	(int ) &buf[i] = ptrace (3, inferior_pid,
c906108c	90	(PTRACE_ARG3_TYPE) regaddr, 0);
c5aa993b JM	91	regaddr += sizeof (int);
c5aa993b JM	92	}
c906108c SS	93	supply_register (regno, buf);
c906108c SS	94	}
c5aa993b JM	95	/* now load up registers 32-37; special pc registers */
	96	(int ) &buf[0] = ptrace (3, inferior_pid,
	97	(PTRACE_ARG3_TYPE) PSR_OFFSET, 0);
	98	supply_register (PSR_REGNUM, buf);
	99	(int ) &buf[0] = ptrace (3, inferior_pid,
	100	(PTRACE_ARG3_TYPE) FPSR_OFFSET, 0);
	101	supply_register (FPSR_REGNUM, buf);
	102	(int ) &buf[0] = ptrace (3, inferior_pid,
	103	(PTRACE_ARG3_TYPE) FPCR_OFFSET, 0);
	104	supply_register (FPCR_REGNUM, buf);
	105	(int ) &buf[0] = ptrace (3, inferior_pid,
	106	(PTRACE_ARG3_TYPE) SXIP_OFFSET, 0);
	107	supply_register (SXIP_REGNUM, buf);
	108	(int ) &buf[0] = ptrace (3, inferior_pid,
	109	(PTRACE_ARG3_TYPE) SNIP_OFFSET, 0);
	110	supply_register (SNIP_REGNUM, buf);
	111	(int ) &buf[0] = ptrace (3, inferior_pid,
	112	(PTRACE_ARG3_TYPE) SFIP_OFFSET, 0);
	113	supply_register (SFIP_REGNUM, buf);
	114
	115	if (target_is_m88110)
	116	{
	117	for (regaddr = XREGADDR (X0_REGNUM), regno = X0_REGNUM;
	118	regno < NUM_REGS;
	119	regno++, regaddr += 16)
	120	{
	121	X_REGISTER_RAW_TYPE xval;
	122
	123	(int ) &xval.w1 = ptrace (3, inferior_pid,
	124	(PTRACE_ARG3_TYPE) regaddr, 0);
	125	(int ) &xval.w2 = ptrace (3, inferior_pid,
	126	(PTRACE_ARG3_TYPE) (regaddr + 4), 0);
	127	(int ) &xval.w3 = ptrace (3, inferior_pid,
	128	(PTRACE_ARG3_TYPE) (regaddr + 8), 0);
	129	(int ) &xval.w4 = ptrace (3, inferior_pid,
	130	(PTRACE_ARG3_TYPE) (regaddr + 12), 0);
	131	supply_register (regno, (void *) &xval);
	132	}
	133	}
c906108c SS	134	}
	135
	136	/* Store our register values back into the inferior.
	137	If REGNO is -1, do this for all registers.
	138	Otherwise, REGNO specifies which register (so we can save time). */
	139
	140	void
fba45db2	141	store_inferior_registers (int regno)
c906108c SS	142	{
	143	register unsigned int regaddr;
	144	char buf[80];
	145
	146	struct USER u;
	147
	148	unsigned int offset = (char ) &u.pt_r0 - (char ) &u;
	149
	150	regaddr = offset;
	151
	152	/* Don't try to deal with EXIP_REGNUM or ENIP_REGNUM, because I think either
	153	svr3 doesn't run on an 88110, or the kernel isolates the different (not
	154	completely sure this is true, but seems to be. */
	155	if (regno >= 0)
	156	{
	157	/* regaddr = register_addr (regno, offset); */
	158	if (regno < PC_REGNUM)
c5aa993b	159	{
c906108c SS	160	regaddr = offset + regno * sizeof (int);
	161	errno = 0;
	162	ptrace (6, inferior_pid,
	163	(PTRACE_ARG3_TYPE) regaddr, read_register (regno));
	164	if (errno != 0)
	165	{
	166	sprintf (buf, "writing register number %d", regno);
	167	perror_with_name (buf);
	168	}
	169	}
	170	else if (regno == PSR_REGNUM)
c5aa993b JM	171	ptrace (6, inferior_pid,
c5aa993b JM	172	(PTRACE_ARG3_TYPE) PSR_OFFSET, read_register (regno));
c906108c	173	else if (regno == FPSR_REGNUM)
c5aa993b JM	174	ptrace (6, inferior_pid,
c5aa993b JM	175	(PTRACE_ARG3_TYPE) FPSR_OFFSET, read_register (regno));
c906108c	176	else if (regno == FPCR_REGNUM)
c5aa993b JM	177	ptrace (6, inferior_pid,
c5aa993b JM	178	(PTRACE_ARG3_TYPE) FPCR_OFFSET, read_register (regno));
c906108c SS	179	else if (regno == SXIP_REGNUM)
c906108c SS	180	ptrace (6, inferior_pid,
c5aa993b	181	(PTRACE_ARG3_TYPE) SXIP_OFFSET, read_register (regno));
c906108c SS	182	else if (regno == SNIP_REGNUM)
c906108c SS	183	ptrace (6, inferior_pid,
c5aa993b	184	(PTRACE_ARG3_TYPE) SNIP_OFFSET, read_register (regno));
c906108c SS	185	else if (regno == SFIP_REGNUM)
c906108c SS	186	ptrace (6, inferior_pid,
c5aa993b	187	(PTRACE_ARG3_TYPE) SFIP_OFFSET, read_register (regno));
c906108c	188	else if (target_is_m88110 && regno < NUM_REGS)
c5aa993b JM	189	{
	190	X_REGISTER_RAW_TYPE xval;
	191
	192	read_register_bytes (REGISTER_BYTE (regno), (char *) &xval,
	193	sizeof (X_REGISTER_RAW_TYPE));
	194	regaddr = XREGADDR (regno);
	195	ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) regaddr, xval.w1);
	196	ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) regaddr + 4, xval.w2);
	197	ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) regaddr + 8, xval.w3);
	198	ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) regaddr + 12, xval.w4);
	199	}
c906108c SS	200	else
	201	printf_unfiltered ("Bad register number for store_inferior routine\n");
	202	}
	203	else
c5aa993b	204	{
c906108c SS	205	for (regno = 0; regno < PC_REGNUM; regno++)
	206	{
	207	/* regaddr = register_addr (regno, offset); */
	208	errno = 0;
	209	regaddr = offset + regno * sizeof (int);
	210	ptrace (6, inferior_pid,
	211	(PTRACE_ARG3_TYPE) regaddr, read_register (regno));
	212	if (errno != 0)
	213	{
	214	sprintf (buf, "writing register number %d", regno);
	215	perror_with_name (buf);
	216	}
	217	}
	218	ptrace (6, inferior_pid,
c5aa993b JM	219	(PTRACE_ARG3_TYPE) PSR_OFFSET, read_register (regno));
	220	ptrace (6, inferior_pid,
	221	(PTRACE_ARG3_TYPE) FPSR_OFFSET, read_register (regno));
	222	ptrace (6, inferior_pid,
	223	(PTRACE_ARG3_TYPE) FPCR_OFFSET, read_register (regno));
	224	ptrace (6, inferior_pid,
	225	(PTRACE_ARG3_TYPE) SXIP_OFFSET, read_register (SXIP_REGNUM));
c906108c	226	ptrace (6, inferior_pid,
c5aa993b	227	(PTRACE_ARG3_TYPE) SNIP_OFFSET, read_register (SNIP_REGNUM));
c906108c	228	ptrace (6, inferior_pid,
c5aa993b	229	(PTRACE_ARG3_TYPE) SFIP_OFFSET, read_register (SFIP_REGNUM));
c906108c	230	if (target_is_m88110)
c5aa993b JM	231	{
	232	for (regno = X0_REGNUM; regno < NUM_REGS; regno++)
	233	{
	234	X_REGISTER_RAW_TYPE xval;
	235
	236	read_register_bytes (REGISTER_BYTE (regno), (char *) &xval,
	237	sizeof (X_REGISTER_RAW_TYPE));
	238	regaddr = XREGADDR (regno);
	239	ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) regaddr, xval.w1);
	240	ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) (regaddr + 4), xval.w2);
	241	ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) (regaddr + 8), xval.w3);
	242	ptrace (6, inferior_pid, (PTRACE_ARG3_TYPE) (regaddr + 12), xval.w4);
	243	}
	244	}
c906108c SS	245	}
	246	}
	247
	248	/* blockend is the address of the end of the user structure */
	249
fba45db2	250	m88k_register_u_addr (int blockend, int regnum)
c906108c SS	251	{
	252	struct USER u;
	253	int ustart = blockend - sizeof (struct USER);
	254
	255	if (regnum < PSR_REGNUM)
c5aa993b JM	256	return (ustart + ((int) &u.pt_r0 - (int) &u) +
c5aa993b JM	257	REGISTER_SIZE * regnum);
c906108c	258	else if (regnum == PSR_REGNUM)
c5aa993b	259	return (ustart + ((int) &u.pt_psr) - (int) &u);
c906108c	260	else if (regnum == FPSR_REGNUM)
c5aa993b	261	return (ustart + ((int) &u.pt_fpsr) - (int) &u);
c906108c	262	else if (regnum == FPCR_REGNUM)
c5aa993b	263	return (ustart + ((int) &u.pt_fpcr) - (int) &u);
c906108c	264	else if (regnum == SXIP_REGNUM)
c5aa993b	265	return (ustart + SXIP_OFFSET);
c906108c	266	else if (regnum == SNIP_REGNUM)
c5aa993b	267	return (ustart + SNIP_OFFSET);
c906108c	268	else if (regnum == SFIP_REGNUM)
c5aa993b JM	269	return (ustart + SFIP_OFFSET);
	270	else if (target_is_m88110)
	271	return (ustart + ((int) &u.pt_x0 - (int) &u) + /* Must be X register */
	272	sizeof (u.pt_x0) * (regnum - X0_REGNUM));
c906108c	273	else
c5aa993b	274	return (blockend + REGISTER_SIZE * regnum);
c906108c SS	275	}
	276
	277	#ifdef USE_PROC_FS
	278
	279	#include <sys/procfs.h>
	280
c60c0f5f MS	281	/* Prototypes for supply_gregset etc. */
	282	#include "gregset.h"
	283
c906108c	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
c906108c SS	288	void
fba45db2	289	supply_gregset (gregset_t *gregsetp)
c906108c	290	{
c5aa993b JM	291	register int regi;
	292	register greg_t regp = (greg_t ) gregsetp;
	293
	294	for (regi = 0; regi <= SP_REGNUM; regi++)
	295	supply_register (regi, (char *) (regp + regi));
	296
	297	supply_register (SXIP_REGNUM, (char *) (regp + R_XIP));
	298	supply_register (SNIP_REGNUM, (char *) (regp + R_NIP));
	299	supply_register (SFIP_REGNUM, (char *) (regp + R_FIP));
	300	supply_register (PSR_REGNUM, (char *) (regp + R_PSR));
	301	supply_register (FPSR_REGNUM, (char *) (regp + R_FPSR));
	302	supply_register (FPCR_REGNUM, (char *) (regp + R_FPCR));
c906108c SS	303	}
	304
	305	void
fba45db2	306	fill_gregset (gregset_t *gregsetp, int regno)
c906108c	307	{
c5aa993b JM	308	int regi;
	309	register greg_t regp = (greg_t ) gregsetp;
	310
	311	for (regi = 0; regi <= R_R31; regi++)
	312	if ((regno == -1) \|\| (regno == regi))
	313	(regp + regi) = (int *) &registers[REGISTER_BYTE (regi)];
	314
	315	if ((regno == -1) \|\| (regno == SXIP_REGNUM))
	316	(regp + R_XIP) = (int *) &registers[REGISTER_BYTE (SXIP_REGNUM)];
	317	if ((regno == -1) \|\| (regno == SNIP_REGNUM))
	318	(regp + R_NIP) = (int *) &registers[REGISTER_BYTE (SNIP_REGNUM)];
	319	if ((regno == -1) \|\| (regno == SFIP_REGNUM))
	320	(regp + R_FIP) = (int *) &registers[REGISTER_BYTE (SFIP_REGNUM)];
	321	if ((regno == -1) \|\| (regno == PSR_REGNUM))
	322	(regp + R_PSR) = (int *) &registers[REGISTER_BYTE (PSR_REGNUM)];
	323	if ((regno == -1) \|\| (regno == FPSR_REGNUM))
	324	(regp + R_FPSR) = (int *) &registers[REGISTER_BYTE (FPSR_REGNUM)];
	325	if ((regno == -1) \|\| (regno == FPCR_REGNUM))
	326	(regp + R_FPCR) = (int *) &registers[REGISTER_BYTE (FPCR_REGNUM)];
c906108c SS	327	}
	328
	329	#endif /* USE_PROC_FS */
	330
	331	/* This support adds the equivalent of adb's % command. When
	332	the `add-shared-symbol-files' command is given, this routine scans
	333	the dynamic linker's link map and reads the minimal symbols
	334	from each shared object file listed in the map. */
	335
c5aa993b JM	336	struct link_map
c5aa993b JM	337	{
c906108c SS	338	unsigned long l_addr; /* address at which object is mapped */
	339	char l_name; / full name of loaded object */
	340	void l_ld; / dynamic structure of object */
	341	struct link_map l_next; / next link object */
	342	struct link_map l_prev; / previous link object */
	343	};
	344
	345	#define LINKS_MAP_POINTER "_ld_tail"
	346	#define LIBC_FILE "/usr/lib/libc.so.1"
	347	#define SHARED_OFFSET 0xf0001000
	348
	349	#ifndef PATH_MAX
	350	#define PATH_MAX 1023 /* maximum size of path name on OS */
	351	#endif
	352
	353	void
fba45db2	354	add_shared_symbol_files (void)
c906108c SS	355	{
	356	void *desc;
	357	struct link_map ld_map, lm, lms;
c5aa993b	358	struct minimal_symbol *minsym;
c906108c SS	359	struct objfile *objfile;
	360	char *path_name;
	361
c5aa993b	362	if (!inferior_pid)
c906108c SS	363	{
	364	warning ("The program has not yet been started.");
	365	return;
	366	}
	367
2df3850c	368	objfile = symbol_file_add (LIBC_FILE, 0, NULL, 0, OBJF_READNOW);
c906108c SS	369	minsym = lookup_minimal_symbol (LINKS_MAP_POINTER, objfile);
	370
	371	ld_map = (struct link_map *)
c5aa993b	372	read_memory_integer (((int) SYMBOL_VALUE_ADDRESS (minsym) + SHARED_OFFSET), 4);
c906108c SS	373	lm = ld_map;
	374	while (lm)
	375	{
	376	int local_errno = 0;
	377
c5aa993b	378	read_memory ((CORE_ADDR) lm, (char *) &lms, sizeof (struct link_map));
c906108c SS	379	if (lms.l_name)
c906108c SS	380	{
c5aa993b JM	381	if (target_read_string ((CORE_ADDR) lms.l_name, &path_name,
c5aa993b JM	382	PATH_MAX, &local_errno))
c906108c	383	{
2acceee2 JM	384	struct section_addr_info section_addrs;
2acceee2 JM	385	memset (&section_addrs, 0, sizeof (section_addrs));
a034fba4 EZ	386	section_addrs.other[0].addr = lms.l_addr;
a034fba4 EZ	387	section_addrs.other[0].name = ".text";
2df3850c	388	symbol_file_add (path_name, 1, &section_addrs, 0, 0);
b8c9b27d	389	xfree (path_name);
c906108c SS	390	}
	391	}
	392	/* traverse links in reverse order so that we get the
c5aa993b	393	the symbols the user actually gets. */
c906108c SS	394	lm = lms.l_prev;
	395	}
	396
	397	/* Getting new symbols may change our opinion about what is
	398	frameless. */
	399	reinit_frame_cache ();
	400	}
	401
	402	#if defined(_ES_MP)
	403
	404	#include <sys/regset.h>
	405
	406	unsigned int
fba45db2	407	m88k_harris_core_register_addr (int regno, int reg_ptr)
c906108c	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
fba45db2	443	_initialize_m88k_nat (void)
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
fba45db2	461	supply_gregset (gregset_t *gregsetp)
c906108c SS	462	{
	463	register int regi;
	464	register greg_t regp = (greg_t ) gregsetp;
	465
c5aa993b	466	for (regi = 0; regi < R_R31; regi++)
c906108c SS	467	{
	468	supply_register (regi, (char *) (regp + regi));
	469	}
c5aa993b	470	supply_register (PSR_REGNUM, (char *) (regp + R_EPSR));
c906108c SS	471	supply_register (FPSR_REGNUM, (char *) (regp + R_FPSR));
	472	supply_register (FPCR_REGNUM, (char *) (regp + R_FPCR));
	473	supply_register (SXIP_REGNUM, (char *) (regp + R_EXIP));
	474	supply_register (SNIP_REGNUM, (char *) (regp + R_ENIP));
	475	supply_register (SFIP_REGNUM, (char *) (regp + R_EFIP));
	476	}
	477
	478	/* Given a pointer to a floating point register set in /proc format
	479	(fpregset_t *), unpack the register contents and supply them as gdb's
	480	idea of the current floating point register values. */
	481
c5aa993b	482	void
fba45db2	483	supply_fpregset (fpregset_t *fpregsetp)
c906108c SS	484	{
	485	register int regi;
	486	char *from;
c5aa993b JM	487
c5aa993b JM	488	for (regi = FP0_REGNUM; regi <= FPLAST_REGNUM; regi++)
c906108c	489	{
c5aa993b	490	from = (char ) &((fpregsetp)[regi - FP0_REGNUM]);
c906108c SS	491	supply_register (regi, from);
	492	}
	493	}
	494
	495	#endif /* _ES_MP */
	496
	497	#ifdef _CX_UX
	498
	499	#include <sys/regset.h>
	500
c5aa993b JM	501	unsigned int
c5aa993b JM	502	m88k_harris_core_register_addr (int regno, int reg_ptr)
c906108c	503	{
c5aa993b JM	504	unsigned int word_offset;
	505
	506	switch (regno)
	507	{
	508	case PSR_REGNUM:
	509	word_offset = R_PSR;
	510	break;
	511	case FPSR_REGNUM:
	512	word_offset = R_FPSR;
	513	break;
	514	case FPCR_REGNUM:
	515	word_offset = R_FPCR;
	516	break;
	517	case SXIP_REGNUM:
	518	word_offset = R_XIP;
	519	break;
	520	case SNIP_REGNUM:
	521	word_offset = R_NIP;
	522	break;
	523	case SFIP_REGNUM:
	524	word_offset = R_FIP;
	525	break;
	526	default:
	527	if (regno <= FP_REGNUM)
	528	word_offset = regno;
	529	else
	530	word_offset = ((regno - X0_REGNUM) * 4) + R_X0;
	531	}
	532	return (word_offset * 4);
c906108c SS	533	}
	534
	535	#endif /* _CX_UX */