1 /* Utility to load a file into the simulator. 2 Copyright (C) 1997-2017 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 "config.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 (SIM_DESC sd, const char *myname, host_callback *callback, 60 const char *prog, bfd *prog_bfd, int verbose_p, int lma_p, 61 sim_write_fn do_write) 62 { 63 asection *s; 64 /* Record separately as we don't want to close PROG_BFD if it was passed. */ 65 bfd *result_bfd; 66 time_t start_time = 0; /* Start and end times of download */ 67 time_t end_time = 0; 68 unsigned long data_count = 0; /* Number of bytes transferred to memory */ 69 int found_loadable_section; 70 71 if (prog_bfd != NULL) 72 result_bfd = prog_bfd; 73 else 74 { 75 result_bfd = bfd_openr (prog, 0); 76 if (result_bfd == NULL) 77 { 78 eprintf (callback, "%s: can't open \"%s\": %s\n", 79 myname, prog, bfd_errmsg (bfd_get_error ())); 80 return NULL; 81 } 82 } 83 84 if (!bfd_check_format (result_bfd, bfd_object)) 85 { 86 eprintf (callback, "%s: \"%s\" is not an object file: %s\n", 87 myname, prog, bfd_errmsg (bfd_get_error ())); 88 /* Only close if we opened it. */ 89 if (prog_bfd == NULL) 90 bfd_close (result_bfd); 91 return NULL; 92 } 93 94 if (verbose_p) 95 start_time = time (NULL); 96 97 found_loadable_section = 0; 98 for (s = result_bfd->sections; s; s = s->next) 99 { 100 if (s->flags & SEC_LOAD) 101 { 102 bfd_size_type size; 103 104 size = bfd_get_section_size (s); 105 if (size > 0) 106 { 107 unsigned char *buffer; 108 bfd_vma lma; 109 110 buffer = malloc (size); 111 if (buffer == NULL) 112 { 113 eprintf (callback, 114 "%s: insufficient memory to load \"%s\"\n", 115 myname, prog); 116 /* Only close if we opened it. */ 117 if (prog_bfd == NULL) 118 bfd_close (result_bfd); 119 return NULL; 120 } 121 if (lma_p) 122 lma = bfd_section_lma (result_bfd, s); 123 else 124 lma = bfd_section_vma (result_bfd, s); 125 if (verbose_p) 126 { 127 xprintf (callback, "Loading section %s, size 0x%lx %s ", 128 bfd_get_section_name (result_bfd, s), 129 (unsigned long) size, 130 (lma_p ? "lma" : "vma")); 131 xprintf_bfd_vma (callback, lma); 132 xprintf (callback, "\n"); 133 } 134 data_count += size; 135 bfd_get_section_contents (result_bfd, s, buffer, 0, size); 136 do_write (sd, lma, buffer, size); 137 found_loadable_section = 1; 138 free (buffer); 139 } 140 } 141 } 142 143 if (!found_loadable_section) 144 { 145 eprintf (callback, 146 "%s: no loadable sections \"%s\"\n", 147 myname, prog); 148 return NULL; 149 } 150 151 if (verbose_p) 152 { 153 end_time = time (NULL); 154 xprintf (callback, "Start address "); 155 xprintf_bfd_vma (callback, bfd_get_start_address (result_bfd)); 156 xprintf (callback, "\n"); 157 report_transfer_performance (callback, data_count, start_time, end_time); 158 } 159 160 bfd_cache_close (result_bfd); 161 162 return result_bfd; 163 } 164 165 static void 166 xprintf (host_callback *callback, const char *fmt, ...) 167 { 168 va_list ap; 169 170 va_start (ap, fmt); 171 172 (*callback->vprintf_filtered) (callback, fmt, ap); 173 174 va_end (ap); 175 } 176 177 static void 178 eprintf (host_callback *callback, const char *fmt, ...) 179 { 180 va_list ap; 181 182 va_start (ap, fmt); 183 184 (*callback->evprintf_filtered) (callback, fmt, ap); 185 186 va_end (ap); 187 } 188 189 /* Report how fast the transfer went. */ 190 191 static void 192 report_transfer_performance (host_callback *callback, unsigned long data_count, 193 time_t start_time, time_t end_time) 194 { 195 xprintf (callback, "Transfer rate: "); 196 if (end_time != start_time) 197 xprintf (callback, "%ld bits/sec", 198 (data_count * 8) / (end_time - start_time)); 199 else 200 xprintf (callback, "%ld bits in <1 sec", (data_count * 8)); 201 xprintf (callback, ".\n"); 202 } 203 204 /* Print a bfd_vma. 205 This is intended to handle the vagaries of 32 vs 64 bits, etc. */ 206 207 static void 208 xprintf_bfd_vma (host_callback *callback, bfd_vma vma) 209 { 210 /* FIXME: for now */ 211 xprintf (callback, "0x%lx", (unsigned long) vma); 212 } 213