1 /* Utility to load a file into the simulator. 2 Copyright (C) 1997-2014 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 3 of the License, or 7 (at your option) 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, see <http://www.gnu.org/licenses/>. */ 16 17 /* This is a standalone loader, independent of the sim-basic.h machinery, 18 as it is used by simulators that don't use it [though that doesn't mean 19 to suggest that they shouldn't :-)]. */ 20 21 #ifdef HAVE_CONFIG_H 22 #include "cconfig.h" 23 #endif 24 #include "ansidecl.h" 25 #include <stdio.h> /* for NULL */ 26 #include <stdarg.h> 27 #ifdef HAVE_STDLIB_H 28 #include <stdlib.h> 29 #endif 30 #include <time.h> 31 32 #include "sim-basics.h" 33 #include "bfd.h" 34 #include "sim-utils.h" 35 36 #include "gdb/callback.h" 37 #include "gdb/remote-sim.h" 38 39 static void eprintf (host_callback *, const char *, ...); 40 static void xprintf (host_callback *, const char *, ...); 41 static void report_transfer_performance 42 (host_callback *, unsigned long, time_t, time_t); 43 static void xprintf_bfd_vma (host_callback *, bfd_vma); 44 45 /* Load program PROG into the simulator using the function DO_LOAD. 46 If PROG_BFD is non-NULL, the file has already been opened. 47 If VERBOSE_P is non-zero statistics are printed of each loaded section 48 and the transfer rate (for consistency with gdb). 49 If LMA_P is non-zero the program sections are loaded at the LMA 50 rather than the VMA 51 If this fails an error message is printed and NULL is returned. 52 If it succeeds the bfd is returned. 53 NOTE: For historical reasons, older hardware simulators incorrectly 54 write the program sections at LMA interpreted as a virtual address. 55 This is still accommodated for backward compatibility reasons. */ 56 57 58 bfd * 59 sim_load_file (sd, myname, callback, prog, prog_bfd, verbose_p, lma_p, do_write) 60 SIM_DESC sd; 61 const char *myname; 62 host_callback *callback; 63 char *prog; 64 bfd *prog_bfd; 65 int verbose_p; 66 int lma_p; 67 sim_write_fn do_write; 68 { 69 asection *s; 70 /* Record separately as we don't want to close PROG_BFD if it was passed. */ 71 bfd *result_bfd; 72 time_t start_time = 0; /* Start and end times of download */ 73 time_t end_time = 0; 74 unsigned long data_count = 0; /* Number of bytes transferred to memory */ 75 int found_loadable_section; 76 77 if (prog_bfd != NULL) 78 result_bfd = prog_bfd; 79 else 80 { 81 result_bfd = bfd_openr (prog, 0); 82 if (result_bfd == NULL) 83 { 84 eprintf (callback, "%s: can't open \"%s\": %s\n", 85 myname, prog, bfd_errmsg (bfd_get_error ())); 86 return NULL; 87 } 88 } 89 90 if (!bfd_check_format (result_bfd, bfd_object)) 91 { 92 eprintf (callback, "%s: \"%s\" is not an object file: %s\n", 93 myname, prog, bfd_errmsg (bfd_get_error ())); 94 /* Only close if we opened it. */ 95 if (prog_bfd == NULL) 96 bfd_close (result_bfd); 97 return NULL; 98 } 99 100 if (verbose_p) 101 start_time = time (NULL); 102 103 found_loadable_section = 0; 104 for (s = result_bfd->sections; s; s = s->next) 105 { 106 if (s->flags & SEC_LOAD) 107 { 108 bfd_size_type size; 109 110 size = bfd_get_section_size (s); 111 if (size > 0) 112 { 113 unsigned char *buffer; 114 bfd_vma lma; 115 116 buffer = malloc (size); 117 if (buffer == NULL) 118 { 119 eprintf (callback, 120 "%s: insufficient memory to load \"%s\"\n", 121 myname, prog); 122 /* Only close if we opened it. */ 123 if (prog_bfd == NULL) 124 bfd_close (result_bfd); 125 return NULL; 126 } 127 if (lma_p) 128 lma = bfd_section_lma (result_bfd, s); 129 else 130 lma = bfd_section_vma (result_bfd, s); 131 if (verbose_p) 132 { 133 xprintf (callback, "Loading section %s, size 0x%lx %s ", 134 bfd_get_section_name (result_bfd, s), 135 (unsigned long) size, 136 (lma_p ? "lma" : "vma")); 137 xprintf_bfd_vma (callback, lma); 138 xprintf (callback, "\n"); 139 } 140 data_count += size; 141 bfd_get_section_contents (result_bfd, s, buffer, 0, size); 142 do_write (sd, lma, buffer, size); 143 found_loadable_section = 1; 144 free (buffer); 145 } 146 } 147 } 148 149 if (!found_loadable_section) 150 { 151 eprintf (callback, 152 "%s: no loadable sections \"%s\"\n", 153 myname, prog); 154 return NULL; 155 } 156 157 if (verbose_p) 158 { 159 end_time = time (NULL); 160 xprintf (callback, "Start address "); 161 xprintf_bfd_vma (callback, bfd_get_start_address (result_bfd)); 162 xprintf (callback, "\n"); 163 report_transfer_performance (callback, data_count, start_time, end_time); 164 } 165 166 bfd_cache_close (result_bfd); 167 168 return result_bfd; 169 } 170 171 static void 172 xprintf (host_callback *callback, const char *fmt, ...) 173 { 174 va_list ap; 175 176 va_start (ap, fmt); 177 178 (*callback->vprintf_filtered) (callback, fmt, ap); 179 180 va_end (ap); 181 } 182 183 static void 184 eprintf (host_callback *callback, const char *fmt, ...) 185 { 186 va_list ap; 187 188 va_start (ap, fmt); 189 190 (*callback->evprintf_filtered) (callback, fmt, ap); 191 192 va_end (ap); 193 } 194 195 /* Report how fast the transfer went. */ 196 197 static void 198 report_transfer_performance (callback, data_count, start_time, end_time) 199 host_callback *callback; 200 unsigned long data_count; 201 time_t start_time, end_time; 202 { 203 xprintf (callback, "Transfer rate: "); 204 if (end_time != start_time) 205 xprintf (callback, "%ld bits/sec", 206 (data_count * 8) / (end_time - start_time)); 207 else 208 xprintf (callback, "%ld bits in <1 sec", (data_count * 8)); 209 xprintf (callback, ".\n"); 210 } 211 212 /* Print a bfd_vma. 213 This is intended to handle the vagaries of 32 vs 64 bits, etc. */ 214 215 static void 216 xprintf_bfd_vma (callback, vma) 217 host_callback *callback; 218 bfd_vma vma; 219 { 220 /* FIXME: for now */ 221 xprintf (callback, "0x%lx", (unsigned long) vma); 222 } 223