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