223 lines
6 KiB
C
223 lines
6 KiB
C
/* Utility to load a file into the simulator.
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Copyright (C) 1997, 1998, 2001, 2002, 2004, 2007
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Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* This is a standalone loader, independent of the sim-basic.h machinery,
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as it is used by simulators that don't use it [though that doesn't mean
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to suggest that they shouldn't :-)]. */
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#ifdef HAVE_CONFIG_H
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#include "cconfig.h"
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#endif
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#include "ansidecl.h"
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#include <stdio.h> /* for NULL */
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#include <stdarg.h>
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#ifdef HAVE_STDLIB_H
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#include <stdlib.h>
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#endif
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#include <time.h>
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#include "sim-basics.h"
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#include "bfd.h"
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#include "sim-utils.h"
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#include "gdb/callback.h"
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#include "gdb/remote-sim.h"
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static void eprintf PARAMS ((host_callback *, const char *, ...));
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static void xprintf PARAMS ((host_callback *, const char *, ...));
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static void report_transfer_performance
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PARAMS ((host_callback *, unsigned long, time_t, time_t));
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static void xprintf_bfd_vma PARAMS ((host_callback *, bfd_vma));
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/* Load program PROG into the simulator using the function DO_LOAD.
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If PROG_BFD is non-NULL, the file has already been opened.
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If VERBOSE_P is non-zero statistics are printed of each loaded section
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and the transfer rate (for consistency with gdb).
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If LMA_P is non-zero the program sections are loaded at the LMA
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rather than the VMA
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If this fails an error message is printed and NULL is returned.
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If it succeeds the bfd is returned.
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NOTE: For historical reasons, older hardware simulators incorrectly
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write the program sections at LMA interpreted as a virtual address.
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This is still accommodated for backward compatibility reasons. */
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bfd *
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sim_load_file (sd, myname, callback, prog, prog_bfd, verbose_p, lma_p, do_write)
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SIM_DESC sd;
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const char *myname;
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host_callback *callback;
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char *prog;
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bfd *prog_bfd;
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int verbose_p;
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int lma_p;
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sim_write_fn do_write;
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{
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asection *s;
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/* Record separately as we don't want to close PROG_BFD if it was passed. */
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bfd *result_bfd;
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time_t start_time = 0; /* Start and end times of download */
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time_t end_time = 0;
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unsigned long data_count = 0; /* Number of bytes transferred to memory */
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int found_loadable_section;
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if (prog_bfd != NULL)
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result_bfd = prog_bfd;
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else
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{
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result_bfd = bfd_openr (prog, 0);
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if (result_bfd == NULL)
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{
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eprintf (callback, "%s: can't open \"%s\": %s\n",
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myname, prog, bfd_errmsg (bfd_get_error ()));
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return NULL;
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}
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}
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if (!bfd_check_format (result_bfd, bfd_object))
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{
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eprintf (callback, "%s: \"%s\" is not an object file: %s\n",
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myname, prog, bfd_errmsg (bfd_get_error ()));
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/* Only close if we opened it. */
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if (prog_bfd == NULL)
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bfd_close (result_bfd);
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return NULL;
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}
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if (verbose_p)
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start_time = time (NULL);
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found_loadable_section = 0;
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for (s = result_bfd->sections; s; s = s->next)
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{
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if (s->flags & SEC_LOAD)
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{
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bfd_size_type size;
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size = bfd_get_section_size (s);
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if (size > 0)
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{
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char *buffer;
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bfd_vma lma;
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buffer = malloc (size);
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if (buffer == NULL)
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{
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eprintf (callback,
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"%s: insufficient memory to load \"%s\"\n",
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myname, prog);
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/* Only close if we opened it. */
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if (prog_bfd == NULL)
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bfd_close (result_bfd);
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return NULL;
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}
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if (lma_p)
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lma = bfd_section_lma (result_bfd, s);
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else
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lma = bfd_section_vma (result_bfd, s);
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if (verbose_p)
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{
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xprintf (callback, "Loading section %s, size 0x%lx %s ",
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bfd_get_section_name (result_bfd, s),
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(unsigned long) size,
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(lma_p ? "lma" : "vma"));
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xprintf_bfd_vma (callback, lma);
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xprintf (callback, "\n");
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}
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data_count += size;
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bfd_get_section_contents (result_bfd, s, buffer, 0, size);
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do_write (sd, lma, buffer, size);
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found_loadable_section = 1;
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free (buffer);
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}
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}
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}
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if (!found_loadable_section)
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{
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eprintf (callback,
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"%s: no loadable sections \"%s\"\n",
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myname, prog);
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return NULL;
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}
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if (verbose_p)
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{
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end_time = time (NULL);
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xprintf (callback, "Start address ");
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xprintf_bfd_vma (callback, bfd_get_start_address (result_bfd));
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xprintf (callback, "\n");
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report_transfer_performance (callback, data_count, start_time, end_time);
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}
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bfd_cache_close (result_bfd);
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return result_bfd;
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}
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static void
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xprintf VPARAMS ((host_callback *callback, const char *fmt, ...))
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{
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va_list ap;
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VA_START (ap, fmt);
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(*callback->vprintf_filtered) (callback, fmt, ap);
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va_end (ap);
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}
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static void
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eprintf VPARAMS ((host_callback *callback, const char *fmt, ...))
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{
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va_list ap;
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VA_START (ap, fmt);
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(*callback->evprintf_filtered) (callback, fmt, ap);
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va_end (ap);
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}
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/* Report how fast the transfer went. */
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static void
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report_transfer_performance (callback, data_count, start_time, end_time)
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host_callback *callback;
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unsigned long data_count;
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time_t start_time, end_time;
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{
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xprintf (callback, "Transfer rate: ");
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if (end_time != start_time)
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xprintf (callback, "%ld bits/sec",
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(data_count * 8) / (end_time - start_time));
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else
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xprintf (callback, "%ld bits in <1 sec", (data_count * 8));
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xprintf (callback, ".\n");
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}
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/* Print a bfd_vma.
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This is intended to handle the vagaries of 32 vs 64 bits, etc. */
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static void
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xprintf_bfd_vma (callback, vma)
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host_callback *callback;
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bfd_vma vma;
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{
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/* FIXME: for now */
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xprintf (callback, "0x%lx", (unsigned long) vma);
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}
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