sim/common/sim-load.c

   1 /* Utility to load a file into the simulator.
   2    Copyright (C) 1997 Free Software Foundation, Inc.
   3
   4 This program is free software; you can redistribute it and/or modify
   5 it under the terms of the GNU General Public License as published by
   6 the Free Software Foundation; either version 2, or (at your option)
   7 any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 GNU General Public License for more details.
  13
  14 You should have received a copy of the GNU General Public License
  15 along with this program; if not, write to the Free Software Foundation, Inc.,
  16 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  17
  18 /* This is a standalone loader, independent of the sim-basic.h machinery,
  19    as it is used by simulators that don't use it [though that doesn't mean
  20    to suggest that they shouldn't :-)].  */
  21
  22 #include "config.h"
  23 #include "ansidecl.h"
  24 #ifdef ANSI_PROTOTYPES
  25 #include <stdarg.h>
  26 #else
  27 #include <varargs.h>
  28 #endif
  29 #ifdef HAVE_STDLIB_H
  30 #include <stdlib.h>
  31 #endif
  32 #include <time.h>
  33 #include "bfd.h"
  34 #include "callback.h"
  35 #include "remote-sim.h"
  36
  37 static void eprintf PARAMS ((host_callback *, const char *, ...));
  38 static void xprintf PARAMS ((host_callback *, const char *, ...));
  39 static void report_transfer_performance
  40   PARAMS ((host_callback *, unsigned long, time_t, time_t));
  41 static void xprintf_bfd_vma PARAMS ((host_callback *, bfd_vma));
  42
  43 /* Load program PROG into the simulator.
  44    If PROG_BFD is non-NULL, the file has already been opened.
  45    If VERBOSE_P is non-zero statistics are printed of each loaded section
  46    and the transfer rate (for consistency with gdb).
  47    If this fails an error message is printed and NULL is returned.
  48    If it succeeds the bfd is returned.  */
  49
  50 /* FIXME: Where can we put a prototype for this?  */
  51
  52 bfd *
  53 sim_load_file (sd, myname, callback, prog, prog_bfd, verbose_p)
  54      SIM_DESC sd;
  55      char *myname;
  56      host_callback *callback;
  57      char *prog;
  58      bfd *prog_bfd;
  59 {
  60   asection *s;
  61   /* Record separately as we don't want to close PROG_BFD if it was passed.  */
  62   bfd *result_bfd;
  63   time_t start_time, end_time;  /* Start and end times of download */
  64   unsigned long data_count = 0; /* Number of bytes transferred to memory */
  65
  66   if (prog_bfd != NULL)
  67     result_bfd = prog_bfd;
  68   else
  69     {
  70       result_bfd = bfd_openr (prog, 0);
  71       if (result_bfd == NULL)
  72         {
  73           eprintf (callback, "%s: can't open \"%s\": %s\n",
  74                    myname, prog, bfd_errmsg (bfd_get_error ()));
  75           return NULL;
  76         }
  77     }
  78
  79   if (!bfd_check_format (result_bfd, bfd_object))
  80     {
  81       eprintf (callback, "%s: \"%s\" is not an object file: %s\n",
  82                myname, prog, bfd_errmsg (bfd_get_error ()));
  83       /* Only close if we opened it.  */
  84       if (prog_bfd == NULL)
  85         bfd_close (result_bfd);
  86       return NULL;
  87     }
  88
  89   if (verbose_p)
  90     start_time = time (NULL);
  91
  92   for (s = result_bfd->sections; s; s = s->next)
  93     {
  94       if (s->flags & SEC_LOAD)
  95         {
  96           bfd_size_type size;
  97
  98           size = bfd_get_section_size_before_reloc (s);
  99           if (size > 0)
 100             {
 101               char *buffer;
 102               bfd_vma lma;
 103
 104               buffer = malloc (size);
 105               if (buffer == NULL)
 106                 {
 107                   eprintf (callback,
 108                            "%s: insufficient memory to load \"%s\"\n",
 109                            myname, prog);
 110                   /* Only close if we opened it.  */
 111                   if (prog_bfd == NULL)
 112                     bfd_close (result_bfd);
 113                   return NULL;
 114                 }
 115               /* Before you change this to bfd_section_lma, make sure
 116                  the arm-pe simulator still works.  */
 117               lma = bfd_section_vma (result_bfd, s);
 118               if (verbose_p)
 119                 {
 120                   xprintf (callback, "Loading section %s, size 0x%lx lma ",
 121                            bfd_get_section_name (result_bfd, s),
 122                            (unsigned long) size);
 123                   xprintf_bfd_vma (callback, lma);
 124                   xprintf (callback, "\n");
 125                 }
 126               data_count += size;
 127               bfd_get_section_contents (result_bfd, s, buffer, 0, size);
 128               sim_write (sd, lma, buffer, size);
 129               free (buffer);
 130             }
 131         }
 132     }
 133
 134   if (verbose_p)
 135     {
 136       end_time = time (NULL);
 137       xprintf (callback, "Start address ");
 138       xprintf_bfd_vma (callback, bfd_get_start_address (result_bfd));
 139       xprintf (callback, "\n");
 140       report_transfer_performance (callback, data_count, start_time, end_time);
 141     }
 142
 143   return result_bfd;
 144 }
 145
 146 static void
 147 xprintf VPARAMS ((host_callback *callback, const char *fmt, ...))
 148 {
 149 #ifndef ANSI_PROTOTYPES
 150   host_callback *callback;
 151   char *fmt;
 152 #endif
 153   va_list ap;
 154
 155   VA_START (ap, fmt);
 156 #ifndef ANSI_PROTOTYPES
 157   callback = va_arg (ap, host_callback *);
 158   fmt = va_arg (ap, char *);
 159 #endif
 160
 161   (*callback->vprintf_filtered) (callback, fmt, ap);
 162
 163   va_end (ap);
 164 }
 165
 166 static void
 167 eprintf VPARAMS ((host_callback *callback, const char *fmt, ...))
 168 {
 169 #ifndef ANSI_PROTOTYPES
 170   host_callback *callback;
 171   char *fmt;
 172 #endif
 173   va_list ap;
 174
 175   VA_START (ap, fmt);
 176 #ifndef ANSI_PROTOTYPES
 177   callback = va_arg (ap, host_callback *);
 178   fmt = va_arg (ap, char *);
 179 #endif
 180
 181   (*callback->evprintf_filtered) (callback, fmt, ap);
 182
 183   va_end (ap);
 184 }
 185
 186 /* Report how fast the transfer went. */
 187
 188 static void
 189 report_transfer_performance (callback, data_count, start_time, end_time)
 190      host_callback *callback;
 191      unsigned long data_count;
 192      time_t start_time, end_time;
 193 {
 194   xprintf (callback, "Transfer rate: ");
 195   if (end_time != start_time)
 196     xprintf (callback, "%ld bits/sec",
 197              (data_count * 8) / (end_time - start_time));
 198   else
 199     xprintf (callback, "%ld bits in <1 sec", (data_count * 8));
 200   xprintf (callback, ".\n");
 201 }
 202
 203 /* Print a bfd_vma.
 204    This is intended to handle the vagaries of 32 vs 64 bits, etc.  */
 205
 206 static void
 207 xprintf_bfd_vma (callback, vma)
 208      host_callback *callback;
 209      bfd_vma vma;
 210 {
 211   /* FIXME: for now */
 212   xprintf (callback, "0x%lx", (unsigned long) vma);
 213 }