3 * All rights reserved 4 * 5 * The license below extends only to copyright in the software and shall 6 * not be construed as granting a license to any other intellectual 7 * property including but not limited to intellectual property relating 8 * to a hardware implementation of the functionality of the software 9 * licensed hereunder. You may use the software subject to the license 10 * terms below provided that you ensure that this notice is replicated 11 * unmodified and in its entirety in all distributions of the software, 12 * modified or unmodified, in source code or in binary form. 13 * 14 * Copyright (c) 2003-2005 The Regents of The University of Michigan 15 * All rights reserved. 16 * 17 * Redistribution and use in source and binary forms, with or without 18 * modification, are permitted provided that the following conditions are 19 * met: redistributions of source code must retain the above copyright 20 * notice, this list of conditions and the following disclaimer; 21 * redistributions in binary form must reproduce the above copyright 22 * notice, this list of conditions and the following disclaimer in the 23 * documentation and/or other materials provided with the distribution; 24 * neither the name of the copyright holders nor the names of its 25 * contributors may be used to endorse or promote products derived from 26 * this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 29 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 30 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 31 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 32 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 33 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 34 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 35 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 36 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 37 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 38 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 39 * 40 * Authors: Nathan Binkert 41 */ 42 43#ifdef linux 44#define _GNU_SOURCE 45#include <sched.h> 46#endif 47 48#include <err.h> 49#include <fcntl.h> 50#include <inttypes.h> 51#include <stdio.h> 52#include <stdlib.h> 53#include <string.h> 54#include <sys/mman.h> 55#include <sys/stat.h> 56#include <sys/types.h> 57#include <unistd.h> 58 59#include "m5op.h" 60 61void *m5_mem = NULL; 62 63char *progname; 64char *command = "unspecified"; 65void usage(); 66 67void 68parse_int_args(int argc, char *argv[], uint64_t ints[], int len) 69{ 70 if (argc > len) 71 usage(); 72 73// On 32 bit platforms we need to use strtoull to do the conversion 74#ifdef __LP64__ 75#define strto64 strtoul 76#else 77#define strto64 strtoull 78#endif 79 int i; 80 for (i = 0; i < len; ++i) 81 ints[i] = (i < argc) ? strto64(argv[i], NULL, 0) : 0; 82 83#undef strto64 84} 85 86void 87parse_str_args_to_regs(int argc, char *argv[], uint64_t regs[], int len) 88{ 89 if (argc > 1 || (argc > 0 && strlen(argv[0]) > len * sizeof(uint64_t))) 90 usage(); 91 92 int i; 93 for (i = 0; i < len; i++) 94 regs[i] = 0; 95 96 if (argc == 0) 97 return; 98 99 int n; 100 for (n = 0, i = 0; i < len && n < strlen(argv[0]); n++) { 101 *((char *)(®s[i]) + (n % 8)) = argv[0][n]; 102 if ((n % 8) == 7) 103 i++; 104 } 105} 106 107int 108read_file(int dest_fid) 109{
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139} 140 141void 142write_file(const char *filename) 143{ 144 fprintf(stderr, "opening %s\n", filename); 145 int src_fid = open(filename, O_RDONLY); 146 147 if (src_fid < 0) { 148 fprintf(stderr, "error opening %s\n", filename); 149 return; 150 } 151 152 char buf[256*1024]; 153 int offset = 0; 154 int len; 155 int bytes = 0; 156 157 memset(buf, 0, sizeof(buf)); 158 159 while ((len = read(src_fid, buf, sizeof(buf))) > 0) { 160 bytes += m5_writefile(buf, len, offset, filename); 161 offset += len; 162 } 163 fprintf(stderr, "written %d bytes\n", bytes); 164 165 close(src_fid); 166} 167 168void 169do_exit(int argc, char *argv[]) 170{ 171 if (argc > 1) 172 usage(); 173 174 uint64_t ints[1]; 175 parse_int_args(argc, argv, ints, 1); 176 m5_exit(ints[0]); 177} 178 179void 180do_fail(int argc, char *argv[]) 181{ 182 if (argc < 1 || argc > 2) 183 usage(); 184 185 uint64_t ints[2] = {0,0}; 186 parse_int_args(argc, argv, ints, argc); 187 m5_fail(ints[1], ints[0]); 188} 189 190void 191do_reset_stats(int argc, char *argv[]) 192{ 193 uint64_t ints[2]; 194 parse_int_args(argc, argv, ints, 2); 195 m5_reset_stats(ints[0], ints[1]); 196} 197 198void 199do_dump_stats(int argc, char *argv[]) 200{ 201 uint64_t ints[2]; 202 parse_int_args(argc, argv, ints, 2); 203 m5_dump_stats(ints[0], ints[1]); 204} 205 206void 207do_dump_reset_stats(int argc, char *argv[]) 208{ 209 uint64_t ints[2]; 210 parse_int_args(argc, argv, ints, 2); 211 m5_dumpreset_stats(ints[0], ints[1]); 212} 213 214void 215do_read_file(int argc, char *argv[]) 216{ 217 if (argc > 0) 218 usage(); 219 220 read_file(STDOUT_FILENO); 221} 222 223void 224do_write_file(int argc, char *argv[]) 225{ 226 if (argc != 1) 227 usage(); 228 229 const char *filename = argv[0]; 230 231 write_file(filename); 232} 233 234void 235do_exec_file(int argc, char *argv[]) 236{ 237 if (argc > 0) 238 usage(); 239 240 const char *destname = "/tmp/execfile"; 241 242 int fid = open(destname, O_WRONLY, 0777); 243 int len = read_file(fid); 244 close(fid); 245 if (len > 0) { 246 execl(destname, "execfile", NULL); 247 err(1, "execl failed!"); 248 } 249} 250 251void 252do_checkpoint(int argc, char *argv[]) 253{ 254 uint64_t ints[2]; 255 parse_int_args(argc, argv, ints, 2); 256 m5_checkpoint(ints[0], ints[1]); 257} 258 259void 260do_addsymbol(int argc, char *argv[]) 261{ 262 if (argc != 2) 263 usage(); 264 265 uint64_t addr = strtoul(argv[0], NULL, 0); 266 char *symbol = argv[1]; 267 m5_addsymbol(addr, symbol); 268} 269 270 271void 272do_loadsymbol(int argc, char *argv[]) 273{ 274 if (argc > 0) 275 usage(); 276 277 m5_loadsymbol(); 278} 279 280void 281do_initparam(int argc, char *argv[]) 282{ 283 if (argc > 1) 284 usage(); 285 286 uint64_t key_str[2]; 287 parse_str_args_to_regs(argc, argv, key_str, 2); 288 uint64_t val = m5_initparam(key_str[0], key_str[1]); 289 printf("%"PRIu64, val); 290} 291 292void 293do_sw99param(int argc, char *argv[]) 294{ 295 if (argc != 0) 296 usage(); 297 298 uint64_t param = m5_initparam(0, 0); 299 300 // run-time, rampup-time, rampdown-time, warmup-time, connections 301 printf("%"PRId64" %"PRId64" %"PRId64" %"PRId64" %"PRId64, 302 (param >> 48) & 0xfff, 303 (param >> 36) & 0xfff, (param >> 24) & 0xfff, 304 (param >> 12) & 0xfff, (param >> 0) & 0xfff); 305} 306 307#ifdef linux 308void 309do_pin(int argc, char *argv[]) 310{ 311 if (argc < 2) 312 usage(); 313 314 cpu_set_t mask; 315 CPU_ZERO(&mask); 316 317 const char *sep = ","; 318 char *target = strtok(argv[0], sep); 319 while (target) { 320 CPU_SET(atoi(target), &mask); 321 target = strtok(NULL, sep); 322 } 323 324 if (sched_setaffinity(0, sizeof(cpu_set_t), &mask) < 0) 325 err(1, "setaffinity"); 326 327 execvp(argv[1], &argv[1]); 328 err(1, "execvp failed!"); 329} 330#endif 331 332struct MainFunc 333{ 334 char *name; 335 void (*func)(int argc, char *argv[]); 336 char *usage; 337}; 338 339struct MainFunc mainfuncs[] = { 340 { "exit", do_exit, "[delay]" }, 341 { "fail", do_fail, "<code> [delay]" }, 342 { "resetstats", do_reset_stats, "[delay [period]]" }, 343 { "dumpstats", do_dump_stats, "[delay [period]]" }, 344 { "dumpresetstats", do_dump_reset_stats, "[delay [period]]" }, 345 { "readfile", do_read_file, "" }, 346 { "writefile", do_write_file, "<filename>" }, 347 { "execfile", do_exec_file, "" }, 348 { "checkpoint", do_checkpoint, "[delay [period]]" }, 349 { "addsymbol", do_addsymbol, "<address> <symbol>" }, 350 { "loadsymbol", do_loadsymbol, "" }, 351 { "initparam", do_initparam, "[key] // key must be shorter than 16 chars" }, 352 { "sw99param", do_sw99param, "" }, 353#ifdef linux 354 { "pin", do_pin, "<cpu> <program> [args ...]" } 355#endif 356}; 357int numfuncs = sizeof(mainfuncs) / sizeof(mainfuncs[0]); 358 359void 360usage() 361{ 362 int i; 363 364 for (i = 0; i < numfuncs; ++i) { 365 char *header = i ? "" : "usage:"; 366 fprintf(stderr, "%-6s %s %s %s\n", 367 header, progname, mainfuncs[i].name, mainfuncs[i].usage); 368 } 369 fprintf(stderr, "\n"); 370 fprintf(stderr, "All times in nanoseconds!\n"); 371 372 exit(1); 373} 374 375static void 376map_m5_mem() 377{ 378#ifdef M5OP_ADDR 379 int fd; 380 381 fd = open("/dev/mem", O_RDWR | O_SYNC); 382 if (fd == -1) { 383 perror("Can't open /dev/mem"); 384 exit(1); 385 } 386 387 m5_mem = mmap(NULL, 0x10000, PROT_READ | PROT_WRITE, MAP_SHARED, fd, M5OP_ADDR); 388 if (!m5_mem) { 389 perror("Can't mmap /dev/mem"); 390 exit(1); 391 } 392#endif 393} 394 395int 396main(int argc, char *argv[]) 397{ 398 progname = argv[0]; 399 if (argc < 2) 400 usage(1); 401 402 map_m5_mem(); 403 404 command = argv[1]; 405 406 argv += 2; 407 argc -= 2; 408 409 int i; 410 for (i = 0; i < numfuncs; ++i) { 411 if (strcmp(command, mainfuncs[i].name) != 0) 412 continue; 413 414 mainfuncs[i].func(argc, argv); 415 exit(0); 416 } 417 418 usage(1); 419}
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