| 1 | /* |
| 2 | * ========== Copyright Header Begin ========================================== |
| 3 | * |
| 4 | * OpenSPARC T2 Processor File: dbgrif.c |
| 5 | * Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. |
| 6 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES. |
| 7 | * |
| 8 | * The above named program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU General Public |
| 10 | * License version 2 as published by the Free Software Foundation. |
| 11 | * |
| 12 | * The above named program is distributed in the hope that it will be |
| 13 | * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | * General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public |
| 18 | * License along with this work; if not, write to the Free Software |
| 19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. |
| 20 | * |
| 21 | * ========== Copyright Header End ============================================ |
| 22 | */ |
| 23 | |
| 24 | /* |
| 25 | * Copyright 2006 Sun Microsystems, Inc. All rights reserved. |
| 26 | * Use is subject to license terms. |
| 27 | */ |
| 28 | |
| 29 | #pragma ident "@(#)dbgrif.c 1.15 06/03/06 SMI" |
| 30 | |
| 31 | |
| 32 | /* FIXME: Currently this debugger interface is designed solely |
| 33 | * for supporting GDB. I have tried to make it as general |
| 34 | * as possible, but no doubt interface differences will remain |
| 35 | * for other debuggers. |
| 36 | * Ultimately, this interface will split into 2. A set of |
| 37 | * general interaction stubs will exist, and they |
| 38 | * will support loadable modules which inturn can be customised |
| 39 | * for each available debugger required. |
| 40 | */ |
| 41 | |
| 42 | |
| 43 | |
| 44 | |
| 45 | #include <sys/types.h> |
| 46 | #include <sys/socket.h> |
| 47 | /* #include <sys/conf.h> */ |
| 48 | #include <stropts.h> |
| 49 | #include <signal.h> |
| 50 | #include <netinet/in.h> |
| 51 | #include <sys/un.h> |
| 52 | #include <arpa/inet.h> |
| 53 | #include <netdb.h> |
| 54 | #include <stdio.h> |
| 55 | #include <unistd.h> |
| 56 | #include <fcntl.h> |
| 57 | #include <string.h> /* for memset in FD_ZERO */ |
| 58 | #include <errno.h> |
| 59 | #include <pthread.h> |
| 60 | #include <stdlib.h> |
| 61 | |
| 62 | #include <assert.h> |
| 63 | |
| 64 | |
| 65 | #include "basics.h" |
| 66 | #include "hostcpu.h" |
| 67 | #include "allocate.h" |
| 68 | #include "strutil.h" |
| 69 | #include "fatal.h" |
| 70 | #include "createthr.h" |
| 71 | #include "options.h" |
| 72 | #include "simcore.h" |
| 73 | #include "config.h" |
| 74 | #include "regmap.h" |
| 75 | #include "callback.h" |
| 76 | |
| 77 | |
| 78 | #define MAX_PORT_STEP 10 /* DEFAULT_PORT to DEFAULT_PORT+9 */ |
| 79 | /* allow upto 5 pending connections will never get that many */ |
| 80 | #define MAX_CONNECTIONS 5 |
| 81 | |
| 82 | |
| 83 | |
| 84 | |
| 85 | int port_offset_number; /* for more than one debugger */ |
| 86 | |
| 87 | bool_t flag_remdeb_if = false; |
| 88 | |
| 89 | |
| 90 | |
| 91 | |
| 92 | |
| 93 | typedef enum DBGRSTATE { |
| 94 | DS_unattached, DS_stopped, DS_running |
| 95 | #if 0 |
| 96 | /* |
| 97 | * available for the sim to tell the debugger about a |
| 98 | * new symtab to load ... |
| 99 | * ... something else to do eventually |
| 100 | */ |
| 101 | , DS_symtab_load |
| 102 | #endif |
| 103 | } dbgr_state_t; |
| 104 | |
| 105 | |
| 106 | |
| 107 | |
| 108 | typedef struct DEBUGGER { |
| 109 | int socket; |
| 110 | dbgr_state_t state; |
| 111 | |
| 112 | pthread_t pthread_id; |
| 113 | |
| 114 | /* ID who we are attached to - if anything */ |
| 115 | |
| 116 | domain_t* domainp; /* so we can read memory etc. */ |
| 117 | /* NOTE: have to go via CPU anyway if caches modeled*/ |
| 118 | config_proc_t* config_procp; /* config proc */ |
| 119 | void * pspecp; /* within that proc */ |
| 120 | |
| 121 | |
| 122 | /* communication buffers */ |
| 123 | |
| 124 | uint8_t * send_buffer_p; |
| 125 | uint8_t * recv_buffer_p; |
| 126 | uint8_t * send_ptr; |
| 127 | uint8_t * recv_ptr; |
| 128 | |
| 129 | pthread_mutex_t stop_lock; |
| 130 | pthread_cond_t stop_cv; |
| 131 | } debugger_t; |
| 132 | |
| 133 | |
| 134 | static debugger_t dbgr; |
| 135 | |
| 136 | |
| 137 | |
| 138 | typedef enum { |
| 139 | Receive_error = -1, |
| 140 | Dbgr_Command_Str = 0, |
| 141 | Sim_Command_Str_OK, |
| 142 | Dbgr_Attach, |
| 143 | Sim_Attach_OK, |
| 144 | Sim_Attach_Failed, |
| 145 | Dbgr_Read_Reg, |
| 146 | Sim_Reg_Value_Rtnd, |
| 147 | Dbgr_Write_Reg, |
| 148 | Sim_Reg_Written, |
| 149 | Sim_Reg_Write_Failed, |
| 150 | Dbgr_Set_Breakpoint, |
| 151 | Sim_Breakpoint_Set, |
| 152 | Dbgr_Clear_Breakpoint, |
| 153 | Sim_Breakpoint_Cleared, |
| 154 | Dbgr_Run, |
| 155 | Sim_Executing, |
| 156 | Dbgr_ReqStop, |
| 157 | Dbgr_Wait, |
| 158 | Sim_Stopped, |
| 159 | Sim_SimTab_Load, |
| 160 | Dbgr_Read_Mem, |
| 161 | Sim_Mem_Returned, |
| 162 | Sim_Mem_Read_Failed_No_Mem, |
| 163 | Dbgr_Write_Mem, |
| 164 | Sim_Mem_Write_OK, |
| 165 | Sim_Mem_Write_Failed_No_Mem, |
| 166 | Dbgr_Clear_Mem, |
| 167 | Sim_Mem_Clear_OK, |
| 168 | Sim_Mem_Clear_Failed_No_Mem, |
| 169 | |
| 170 | Dbgr_Protocol_Count |
| 171 | } protocol_t; |
| 172 | |
| 173 | |
| 174 | |
| 175 | |
| 176 | #ifndef NDEBUG /* { */ |
| 177 | #define PD(s) { s, #s }, |
| 178 | struct { |
| 179 | int cmd; |
| 180 | char * name; |
| 181 | } protodebug[]= { |
| 182 | PD(Dbgr_Command_Str) |
| 183 | PD(Sim_Command_Str_OK) |
| 184 | PD(Dbgr_Attach) |
| 185 | PD(Sim_Attach_OK) |
| 186 | PD(Sim_Attach_Failed) |
| 187 | PD(Dbgr_Read_Reg) |
| 188 | PD(Sim_Reg_Value_Rtnd) |
| 189 | PD(Dbgr_Write_Reg) |
| 190 | PD(Sim_Reg_Written) |
| 191 | PD(Sim_Reg_Write_Failed) |
| 192 | PD(Dbgr_Set_Breakpoint) |
| 193 | PD(Sim_Breakpoint_Set) |
| 194 | PD(Dbgr_Clear_Breakpoint) |
| 195 | PD(Sim_Breakpoint_Cleared) |
| 196 | PD(Dbgr_Run) |
| 197 | PD(Sim_Executing) |
| 198 | PD(Dbgr_ReqStop) |
| 199 | PD(Dbgr_Wait) |
| 200 | PD(Sim_Stopped) |
| 201 | PD(Sim_SimTab_Load) |
| 202 | PD(Dbgr_Read_Mem) |
| 203 | PD(Sim_Mem_Returned) |
| 204 | PD(Sim_Mem_Read_Failed_No_Mem) |
| 205 | PD(Dbgr_Write_Mem) |
| 206 | PD(Sim_Mem_Write_OK) |
| 207 | PD(Sim_Mem_Write_Failed_No_Mem) |
| 208 | PD(Dbgr_Clear_Mem) |
| 209 | PD(Sim_Mem_Clear_OK) |
| 210 | PD(Sim_Mem_Clear_Failed_No_Mem) |
| 211 | { -1, NULL }, |
| 212 | }; |
| 213 | |
| 214 | #endif /* } */ |
| 215 | |
| 216 | |
| 217 | |
| 218 | |
| 219 | #define MAX_BUF_SIZE 8192 |
| 220 | static int do_recv(int skt, uint8_t * ptr, int expect); |
| 221 | static protocol_t recv_buffer(debugger_t * dbgp, int * nrecvdp); |
| 222 | static int send_buffer(debugger_t * dbgrp, protocol_t cmd, int num); |
| 223 | |
| 224 | static uint16_t get_uint16(uint8_t * bp); |
| 225 | static void put_uint16(uint8_t * bp, uint16_t val); |
| 226 | static uint32_t get_uint32(uint8_t * bp); |
| 227 | static void put_uint32(uint8_t * bp, uint32_t val); |
| 228 | static uint64_t get_uint64(uint8_t * bp); |
| 229 | static void put_uint64(uint8_t * bp, uint64_t val); |
| 230 | |
| 231 | |
| 232 | /* |
| 233 | *-------------------------------------------- |
| 234 | * Register re-map name table |
| 235 | * Get from the GDB numbering to the simulator |
| 236 | * register value ... |
| 237 | * ... for the moment this is for SPARC only |
| 238 | * but will eventually fix this ... |
| 239 | *-------------------------------------------- |
| 240 | */ |
| 241 | |
| 242 | |
| 243 | static char * gdb_reg_name[] = { |
| 244 | #define SPARC_REG_G0 0 |
| 245 | "g0", "g1", "g2", "g3", "g4", "g5", "g6", "g7", /*values 0-31*/ |
| 246 | "o0", "o1", "o2", "o3", "o4", "o5", "sp", "o7", |
| 247 | "l0", "l1", "l2", "l3", "l4", "l5", "l6", "l7", |
| 248 | "i0", "i1", "i2", "i3", "i4", "i5", "fp", "i7", |
| 249 | |
| 250 | #define SPARC_REG_F0 32 |
| 251 | "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", /* 32-63 */ |
| 252 | "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", |
| 253 | "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", |
| 254 | "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", |
| 255 | |
| 256 | #define SPARC_REG_F32 64 |
| 257 | "f32", "f34", "f36", "f38", "f40", "f42", "f44", "f46", /* 64-79 */ |
| 258 | "f48", "f50", "f52", "f54", "f56", "f58", "f60", "f62", |
| 259 | |
| 260 | #define SPARC_REG_PC 80 |
| 261 | "pc", /* 80 */ |
| 262 | #define SPARC_REG_NPC 81 |
| 263 | "npc", /* 81 */ |
| 264 | "ccr", /* 82 */ |
| 265 | "fsr", /* 83 */ |
| 266 | "fprs", /* 84 */ |
| 267 | "y", /* 85 */ |
| 268 | "asi", /* 86 */ |
| 269 | "ver", /* 87 */ |
| 270 | "tick", /* 88 */ |
| 271 | "pil", /* 89 */ |
| 272 | "pstate", /* 90 */ |
| 273 | "tstate", /* 91 */ |
| 274 | "tba", /* 92 */ |
| 275 | "tl", /* 93 */ |
| 276 | "tt", /* 94 */ |
| 277 | "tpc", /* 95 */ |
| 278 | "tnpc", /* 96 */ |
| 279 | "wstate", /* 97 */ |
| 280 | "cwp", /* 98 */ |
| 281 | "cansave", /* 99 */ |
| 282 | "canrestore", /* 100 */ |
| 283 | "cleanwin", /* 101 */ |
| 284 | "otherwin", /* 102 */ |
| 285 | "asr16", /* 103 */ |
| 286 | "asr17", /* 104 */ |
| 287 | "asr18", /* 105 */ |
| 288 | "asr19", /* 106 */ |
| 289 | "asr20", /* 107 */ |
| 290 | "asr21", /* 108 */ |
| 291 | "asr22", /* 109 */ |
| 292 | "asr23", /* 110 */ |
| 293 | "asr24", /* 111 */ |
| 294 | "asr25", /* 112 */ |
| 295 | "asr26", /* 113 */ |
| 296 | "asr27", /* 114 */ |
| 297 | "asr28", /* 115 */ |
| 298 | "asr29", /* 116 */ |
| 299 | "asr30", /* 117 */ |
| 300 | "asr31", /* 118 */ |
| 301 | "icc", /* 119 */ |
| 302 | "xcc", /* 120 */ |
| 303 | "fcc0", /* 121 */ |
| 304 | "fcc1", /* 122 */ |
| 305 | "fcc2", /* 123 */ |
| 306 | "fcc3", /* 124 */ |
| 307 | |
| 308 | (char*)0 |
| 309 | }; |
| 310 | |
| 311 | |
| 312 | |
| 313 | /* Mapping for the GDB register numbering to the CPU models numbering */ |
| 314 | int * gdb_reg_map; |
| 315 | |
| 316 | |
| 317 | |
| 318 | |
| 319 | |
| 320 | static void if_exec_start(debugger_t * dbgrp); |
| 321 | static void if_exec_wait(debugger_t * dbgrp); |
| 322 | static uint64_t symtab_base; |
| 323 | static char * symtab_fname; |
| 324 | |
| 325 | static void if_write_register(debugger_t * dbgrp); |
| 326 | static void if_read_register(debugger_t * dbgrp); |
| 327 | static void if_clear_breakpoint(debugger_t * dbgrp); |
| 328 | static void if_set_breakpoint(debugger_t * dbgrp); |
| 329 | static void if_read_memory(debugger_t * dbgrp); |
| 330 | static void if_write_memory(debugger_t * dbgrp); |
| 331 | static void if_clear_memory(debugger_t * dbgrp); |
| 332 | |
| 333 | |
| 334 | #ifndef NDEBUG |
| 335 | #define DBGRD(s) do { s } while (0) |
| 336 | #else |
| 337 | #define DBGRD(s) do { } while (0) |
| 338 | #endif |
| 339 | |
| 340 | |
| 341 | |
| 342 | |
| 343 | /* |
| 344 | * Gah this builds a map from the GDB register numbers to |
| 345 | * those of the sparc processor being simulated .. |
| 346 | * .. based on the map exported for the given |
| 347 | * processor type. This should be done a better way, |
| 348 | * but this works for now : FIXME |
| 349 | */ |
| 350 | |
| 351 | void init_gdb_reg_map(reg_map_t * reg_mapp) |
| 352 | { |
| 353 | int count, idx; |
| 354 | |
| 355 | /* for each GDB name, find and map the number the |
| 356 | * cpu core model expects to see |
| 357 | */ |
| 358 | |
| 359 | for (count=0; gdb_reg_name[count]!=(char*)0; count++) ; |
| 360 | |
| 361 | gdb_reg_map = Xcalloc(count, int); |
| 362 | |
| 363 | for (idx=0; idx<count; idx++) { |
| 364 | int j; |
| 365 | char * matchp; |
| 366 | |
| 367 | matchp = gdb_reg_name[idx]; |
| 368 | |
| 369 | /* brute force search for name */ |
| 370 | for (j=0; reg_mapp[j].namep != (char*)0; j++) { |
| 371 | if (streq(reg_mapp[j].namep, matchp)) break; |
| 372 | } |
| 373 | /* shouldnt have gdb names we dont know ! */ |
| 374 | assert(reg_mapp[j].namep != (char*)0); |
| 375 | |
| 376 | gdb_reg_map[idx] = reg_mapp[j].idx; |
| 377 | } |
| 378 | } |
| 379 | |
| 380 | |
| 381 | |
| 382 | |
| 383 | |
| 384 | static void dbgrif_stop_cb(void *arg) |
| 385 | { |
| 386 | debugger_t *dbgrp = (debugger_t *)arg; |
| 387 | |
| 388 | DBGRD(printf("dbgrif_stop_cb()\n");); |
| 389 | |
| 390 | dbgrp->state = DS_stopped; |
| 391 | |
| 392 | pthread_mutex_lock(&dbgrp->stop_lock); |
| 393 | pthread_cond_broadcast(&dbgrp->stop_cv); |
| 394 | pthread_mutex_unlock(&dbgrp->stop_lock); |
| 395 | } |
| 396 | |
| 397 | /* |
| 398 | * This new thread is invoked once contact with a debugger is |
| 399 | * been established. This thread exits once that debugger |
| 400 | * connection vanishes. |
| 401 | * |
| 402 | * Any one debugger can stop the simulation, all are required |
| 403 | * to be active to continue simulation. |
| 404 | */ |
| 405 | |
| 406 | void * dbgrif(void * argp) |
| 407 | { |
| 408 | debugger_t * dbgrp = (debugger_t *)argp; |
| 409 | int res, length; |
| 410 | |
| 411 | /* |
| 412 | * We have a potential contact, however we must |
| 413 | * setup the structures used for communication |
| 414 | */ |
| 415 | |
| 416 | dbgrp->recv_buffer_p = (uint8_t*)valloc(MAX_BUF_SIZE); |
| 417 | if (dbgrp->recv_buffer_p == (uint8_t*)0) fatal("allocating recv buffer"); |
| 418 | dbgrp->send_buffer_p = (uint8_t*)valloc(MAX_BUF_SIZE); |
| 419 | if (dbgrp->send_buffer_p == (uint8_t*)0) fatal("allocating send buffer"); |
| 420 | |
| 421 | dbgrp->recv_ptr = dbgrp->recv_buffer_p + 3; |
| 422 | dbgrp->send_ptr = dbgrp->send_buffer_p + 3; |
| 423 | |
| 424 | /* |
| 425 | * Veryify the protocols match ... |
| 426 | * .... by exchanging the max protocol value |
| 427 | * |
| 428 | * Really should use some version checksum ... FIXME |
| 429 | */ |
| 430 | |
| 431 | res = recv_buffer( dbgrp, &length ); |
| 432 | send_buffer( dbgrp, Dbgr_Protocol_Count, 0 ); /* send regardless - will make other side fail too */ |
| 433 | if (res!=Dbgr_Protocol_Count || length!=0) { |
| 434 | printf("Connection failed : received %d %d - debugger protocols do not match\n", res, length); |
| 435 | goto suicide; |
| 436 | } |
| 437 | |
| 438 | /* |
| 439 | * OK we've established contact with a legitimate debugger |
| 440 | * run the command interface until we get the |
| 441 | * command to termnate this session |
| 442 | */ |
| 443 | |
| 444 | |
| 445 | while (1) { |
| 446 | int recv_len; |
| 447 | protocol_t cmd = (protocol_t)recv_buffer(dbgrp, &recv_len); |
| 448 | |
| 449 | if (cmd == Receive_error) { |
| 450 | perror("failed in communication"); |
| 451 | continue; |
| 452 | } |
| 453 | |
| 454 | DBGRD( for (res = 0; protodebug[res].cmd!=-1 && protodebug[res].cmd!=cmd; res++) ; |
| 455 | printf("command [%d] : %s\n",(int)cmd, |
| 456 | protodebug[res].cmd != -1 ? protodebug[res].name : "illegal value"); ); |
| 457 | |
| 458 | switch ( cmd ) { |
| 459 | case Dbgr_Command_Str: |
| 460 | dbgrp->recv_ptr[recv_len] = '\0'; |
| 461 | DBGRD( printf("recvd: %s\n", dbgrp->recv_ptr); ); |
| 462 | #if 0 |
| 463 | exec_cmds ( (char*)dbgrp->recv_ptr, cmd_ptr ); |
| 464 | #endif |
| 465 | send_buffer(dbgrp, Sim_Command_Str_OK, 0); |
| 466 | break; |
| 467 | |
| 468 | case Dbgr_Attach: |
| 469 | /* FIXME: for now the simulator must be in virgin state */ |
| 470 | assert( dbgrp->state == DS_unattached); |
| 471 | /* Make sure simulator is stopped and ready for attach */ |
| 472 | /* FIXME: for now this is not compatible with the auto start mode */ |
| 473 | assert( !options.flag_auto_start ); |
| 474 | #if 0 |
| 475 | stop_cmd((char*)0, dbgrp->cmd_ptr); /* FIXME: prob. wrong too */ |
| 476 | wait_for_simulation_stop(dbgrp->cmd_ptr); |
| 477 | if (cpu[0] == (void*)0) { |
| 478 | printf( "Looks like you forgot to init the architecture (file blazerc) before\n" |
| 479 | "you did the sttach - try again\n"); |
| 480 | send_buffer(dbgrp->socket, Sim_Attach_Failed, 0); |
| 481 | dbgrp->exec_state = Exec_unattached; /* sanity */ |
| 482 | } else { |
| 483 | send_buffer(dbgrp->socket, Sim_Attach_OK, 0); |
| 484 | dbgrp->cpup = cpu[0]; |
| 485 | dbgrp->exec_state = Exec_stopped; |
| 486 | } |
| 487 | #endif |
| 488 | |
| 489 | |
| 490 | |
| 491 | /* Kludge an attach just to get something |
| 492 | * running .... FIXME |
| 493 | */ |
| 494 | |
| 495 | { system_t * sysp; |
| 496 | sysp = LIST_ENTRY( target_config.systems, 0 ); |
| 497 | dbgrp->domainp = LIST_ENTRY(sysp->domains, 0 ); |
| 498 | } |
| 499 | dbgrp->config_procp = LIST_ENTRY(dbgrp->domainp->procs, 0); |
| 500 | dbgrp->pspecp = dbgrp->config_procp->proc_typep->dbgr_attach(dbgrp->domainp, dbgrp->config_procp, "0:0"); |
| 501 | |
| 502 | ASSERT(dbgrp->config_procp->proc_typep->proc_magic == CPU_MAGIC); |
| 503 | |
| 504 | init_gdb_reg_map(dbgrp->config_procp->proc_typep->reg_mapp); /* FIXME */ |
| 505 | |
| 506 | if (dbgrp->pspecp == NULL) { |
| 507 | send_buffer(dbgrp, Sim_Attach_Failed, 0); |
| 508 | break; |
| 509 | } |
| 510 | |
| 511 | dbgrp->state = DS_stopped; |
| 512 | |
| 513 | send_buffer(dbgrp, Sim_Attach_OK, 0); |
| 514 | break; |
| 515 | |
| 516 | case Dbgr_Read_Reg: |
| 517 | if_read_register(dbgrp); |
| 518 | break; |
| 519 | |
| 520 | case Dbgr_Write_Reg: |
| 521 | if_write_register(dbgrp); |
| 522 | break; |
| 523 | |
| 524 | case Dbgr_Set_Breakpoint: |
| 525 | if_set_breakpoint(dbgrp); |
| 526 | break; |
| 527 | |
| 528 | case Dbgr_Clear_Breakpoint: |
| 529 | if_clear_breakpoint(dbgrp); |
| 530 | break; |
| 531 | |
| 532 | case Dbgr_Run: |
| 533 | if_exec_start(dbgrp); |
| 534 | break; |
| 535 | |
| 536 | case Dbgr_ReqStop: |
| 537 | /* Cannot get here ... */ |
| 538 | fatal("Dbgr_ReqStop unexpectedly received"); |
| 539 | |
| 540 | case Dbgr_Wait: |
| 541 | if_exec_wait(dbgrp); |
| 542 | break; |
| 543 | |
| 544 | case Dbgr_Read_Mem: |
| 545 | if_read_memory(dbgrp); |
| 546 | break; |
| 547 | |
| 548 | case Dbgr_Write_Mem: |
| 549 | if_write_memory(dbgrp); |
| 550 | break; |
| 551 | |
| 552 | case Dbgr_Clear_Mem: |
| 553 | if_clear_memory(dbgrp); |
| 554 | break; |
| 555 | |
| 556 | |
| 557 | default: |
| 558 | #ifndef NDEBUG /* { */ |
| 559 | for (res = 0; protodebug[res].cmd != -1 && protodebug[res].cmd != cmd; res++) ; |
| 560 | warning("unexpected command [%d] : %s\n",(int)cmd, |
| 561 | protodebug[res].cmd != -1 ? protodebug[res].name : "illegal value"); |
| 562 | #else /* } { */ |
| 563 | warning("unexpected command %d\n",(int)cmd); |
| 564 | #endif /* } */ |
| 565 | goto suicide; |
| 566 | } |
| 567 | } |
| 568 | |
| 569 | |
| 570 | |
| 571 | suicide:; |
| 572 | close(dbgrp->socket); |
| 573 | |
| 574 | Xfree( dbgrp->recv_buffer_p ); |
| 575 | Xfree( dbgrp->send_buffer_p ); |
| 576 | Xfree( dbgrp ); |
| 577 | |
| 578 | /* |
| 579 | * Clean up this debuggers session ... |
| 580 | * ... remove any assigned breakpoints etc ... |
| 581 | */ |
| 582 | |
| 583 | /* FIXME */ |
| 584 | |
| 585 | /* |
| 586 | * Clean up debugger session count ? |
| 587 | */ |
| 588 | |
| 589 | pthread_exit((void*)0); |
| 590 | |
| 591 | return (void*)0; /* compiler joy */ |
| 592 | } |
| 593 | |
| 594 | |
| 595 | |
| 596 | |
| 597 | |
| 598 | |
| 599 | #if 0 /* { */ |
| 600 | |
| 601 | /* |
| 602 | * If a symtab message is pending build the response packet |
| 603 | * and send it back to the debugger |
| 604 | * |
| 605 | * The buffer format is quite simple: |
| 606 | * uint16 offset_to_filename { from buffer start } |
| 607 | * uint16 number_of_sections |
| 608 | * Then for each section: |
| 609 | * uint16 offset_to_section_name { from buffer start } |
| 610 | * uint64 section_load_vaddr |
| 611 | * Then the string table: |
| 612 | * .. until the end of the buffer. |
| 613 | * (each string is null terminated) |
| 614 | * |
| 615 | */ |
| 616 | |
| 617 | static void if_send_symtab_info(debugger_t * dbgrp) |
| 618 | { |
| 619 | int stridx, secidx, len; |
| 620 | sym_file_t * sfp; |
| 621 | int i; |
| 622 | #define SEC_SIZE (2+8) |
| 623 | |
| 624 | /* grab the file info */ |
| 625 | sfp = (sym_file_t *)dbgrp->sym_filep; |
| 626 | |
| 627 | /* First size the initial sections block */ |
| 628 | secidx = 4; |
| 629 | stridx = secidx + SEC_SIZE*(sfp->num_pos); |
| 630 | |
| 631 | /* copy in the map name */ |
| 632 | /* and the number of sections */ |
| 633 | put_uint16( dbgrp->send_ptr, stridx ); |
| 634 | put_uint16( dbgrp->send_ptr+2, sfp->num_pos ); |
| 635 | |
| 636 | len = strlen( sfp->mapnamep ); |
| 637 | strcpy( (char*)dbgrp->send_ptr + stridx, sfp->mapnamep ); |
| 638 | stridx += len+1; |
| 639 | |
| 640 | for (i=0; i<sfp->num_pos; i++) { |
| 641 | put_uint16( dbgrp->send_ptr + secidx, stridx ); |
| 642 | put_uint64( dbgrp->send_ptr + secidx + 2, sfp->pos[i].address ); |
| 643 | |
| 644 | len = strlen( sfp->pos[i].namep ); |
| 645 | strcpy( (char*)dbgrp->send_ptr + stridx, sfp->pos[i].namep ); |
| 646 | stridx += len + 1; |
| 647 | |
| 648 | secidx += SEC_SIZE; |
| 649 | } |
| 650 | |
| 651 | |
| 652 | DBGRD( printf("\tif_exec_wait: returning Sim_SimTab_Load (%s)...\n", sfp->mapnamep);); |
| 653 | |
| 654 | send_buffer(dbgrp->socket, Sim_SimTab_Load, stridx); |
| 655 | |
| 656 | symfile_cleanup(&dbgrp->sym_filep); |
| 657 | } |
| 658 | |
| 659 | |
| 660 | #endif /* } */ |
| 661 | |
| 662 | |
| 663 | |
| 664 | |
| 665 | |
| 666 | |
| 667 | |
| 668 | /* |
| 669 | * Start execution again ... |
| 670 | * ... this is non-blocking (use if_exec_wait to wait until stopped) |
| 671 | */ |
| 672 | |
| 673 | static void if_exec_start(debugger_t * dbgrp) |
| 674 | { |
| 675 | DBGRD( printf("run!\n");); |
| 676 | |
| 677 | dbgrp->state = DS_running; |
| 678 | |
| 679 | simcore_start(); |
| 680 | |
| 681 | send_buffer(dbgrp, Sim_Executing, 0); |
| 682 | } |
| 683 | |
| 684 | |
| 685 | |
| 686 | |
| 687 | |
| 688 | /* |
| 689 | * Wait for execution to stop, and give the appropriate response |
| 690 | * to the debugger ... |
| 691 | * ... if execution stopepd to load a symbol table signal that back |
| 692 | * ... after which the debugger should initiate a new run request. |
| 693 | */ |
| 694 | |
| 695 | static void if_exec_wait(debugger_t * dbgrp) |
| 696 | { |
| 697 | DBGRD( printf("wait until stopped...\n");); |
| 698 | |
| 699 | pthread_mutex_lock(&dbgrp->stop_lock); |
| 700 | while (dbgrp->state != DS_stopped) { |
| 701 | pthread_cond_wait(&dbgrp->stop_cv, &dbgrp->stop_lock); |
| 702 | } |
| 703 | pthread_mutex_unlock(&dbgrp->stop_lock); |
| 704 | |
| 705 | DBGRD( printf("\tif_exec_wait: returning Sim_Stopped ...\n");); |
| 706 | send_buffer(dbgrp, Sim_Stopped, 0); |
| 707 | } |
| 708 | |
| 709 | |
| 710 | |
| 711 | |
| 712 | |
| 713 | |
| 714 | static void if_read_register(debugger_t * dbgrp) |
| 715 | { |
| 716 | int regno; |
| 717 | uint64_t val; |
| 718 | |
| 719 | regno = (dbgrp->recv_ptr[0]<<8) | dbgrp->recv_ptr[1]; |
| 720 | |
| 721 | if (!dbgrp->config_procp->proc_typep->regread(dbgrp->pspecp, gdb_reg_map[regno], &val)) { |
| 722 | warning("Register %d [%s] fetch failed", regno, gdb_reg_name[regno]); |
| 723 | send_buffer( dbgrp, Sim_Reg_Value_Rtnd, 0); |
| 724 | return; |
| 725 | } |
| 726 | |
| 727 | DBGRD( printf("read register %d : %s = 0x%llx\n",regno,gdb_reg_name[regno],val);); |
| 728 | |
| 729 | put_uint64(dbgrp->send_ptr, val); |
| 730 | |
| 731 | send_buffer( dbgrp, Sim_Reg_Value_Rtnd, 8); |
| 732 | } |
| 733 | |
| 734 | |
| 735 | |
| 736 | |
| 737 | static void if_write_register(debugger_t * dbgrp) |
| 738 | { |
| 739 | int regno; |
| 740 | uint64_t val; |
| 741 | |
| 742 | regno = (dbgrp->recv_ptr[0]<<8) | dbgrp->recv_ptr[1]; |
| 743 | |
| 744 | val = get_uint64(dbgrp->recv_ptr + 2); |
| 745 | |
| 746 | DBGRD( printf("write register %d : %s = 0x%llx\n",regno,gdb_reg_name[regno],val);); |
| 747 | |
| 748 | if (!dbgrp->config_procp->proc_typep->regwrite(dbgrp->pspecp, gdb_reg_map[regno], val)) { |
| 749 | warning("Register %d [%s] write failed", regno, gdb_reg_name[regno]); |
| 750 | } |
| 751 | |
| 752 | send_buffer( dbgrp, Sim_Reg_Written, 0); |
| 753 | } |
| 754 | |
| 755 | |
| 756 | |
| 757 | |
| 758 | |
| 759 | |
| 760 | |
| 761 | |
| 762 | |
| 763 | |
| 764 | |
| 765 | |
| 766 | |
| 767 | |
| 768 | static void if_set_breakpoint(debugger_t * dbgrp) |
| 769 | { |
| 770 | uint64_t val; |
| 771 | |
| 772 | val = get_uint64(dbgrp->recv_ptr); |
| 773 | |
| 774 | DBGRD( printf("set breakpoint @ 0x%llx\n",val);); |
| 775 | |
| 776 | dbgrp->config_procp->proc_typep->dbgr_set_break(dbgrp->pspecp, val); |
| 777 | |
| 778 | send_buffer( dbgrp, Sim_Breakpoint_Set, 0); |
| 779 | } |
| 780 | |
| 781 | |
| 782 | |
| 783 | |
| 784 | |
| 785 | static void if_clear_breakpoint(debugger_t * dbgrp) |
| 786 | { |
| 787 | uint64_t val; |
| 788 | |
| 789 | val = get_uint64(dbgrp->recv_ptr); |
| 790 | |
| 791 | DBGRD( printf("clear breakpoint @ 0x%llx\n",val);); |
| 792 | |
| 793 | dbgrp->config_procp->proc_typep->dbgr_clear_break(dbgrp->pspecp, val); |
| 794 | |
| 795 | send_buffer( dbgrp, Sim_Breakpoint_Cleared, 0); |
| 796 | } |
| 797 | |
| 798 | |
| 799 | |
| 800 | |
| 801 | |
| 802 | |
| 803 | |
| 804 | |
| 805 | |
| 806 | |
| 807 | static void if_read_memory(debugger_t * dbgrp) |
| 808 | { |
| 809 | tvaddr_t vaddr; |
| 810 | uint32_t len, res; |
| 811 | uint64_t slen; |
| 812 | int offset; |
| 813 | int num; |
| 814 | bool_t is_physical_addr; |
| 815 | proc_type_t * ptp; |
| 816 | |
| 817 | ptp = dbgrp->config_procp->proc_typep; |
| 818 | |
| 819 | vaddr = get_uint64(dbgrp->recv_ptr); |
| 820 | len = get_uint32(dbgrp->recv_ptr + 8); |
| 821 | res = get_uint32(dbgrp->recv_ptr + 12); |
| 822 | |
| 823 | is_physical_addr = (res == 1); |
| 824 | |
| 825 | DBGRD( printf("read %s memory @ 0x%llx [ 0x%x bytes]\n", |
| 826 | is_physical_addr ? "physical" : "virtual", |
| 827 | vaddr, len);); |
| 828 | |
| 829 | len = ptp->dbgr_mem_read(dbgrp->pspecp, vaddr, !is_physical_addr, |
| 830 | dbgrp->send_ptr, len); |
| 831 | |
| 832 | if (len == 0) { |
| 833 | DBGRD( fprintf(stdout, "Failed reading memory"); ); |
| 834 | send_buffer( dbgrp, Sim_Mem_Read_Failed_No_Mem, 0); |
| 835 | return; |
| 836 | } |
| 837 | |
| 838 | send_buffer( dbgrp, Sim_Mem_Returned, len); |
| 839 | } |
| 840 | |
| 841 | |
| 842 | |
| 843 | |
| 844 | |
| 845 | |
| 846 | |
| 847 | static void if_write_memory(debugger_t * dbgrp) |
| 848 | { |
| 849 | tvaddr_t vaddr; |
| 850 | uint32_t len, res; |
| 851 | int offset; |
| 852 | int num; |
| 853 | uint64_t slen; |
| 854 | bool_t is_physical_addr; |
| 855 | proc_type_t * ptp; |
| 856 | |
| 857 | ptp = dbgrp->config_procp->proc_typep; |
| 858 | |
| 859 | vaddr = get_uint64(dbgrp->recv_ptr); |
| 860 | len = get_uint32(dbgrp->recv_ptr + 8); |
| 861 | res = get_uint32(dbgrp->recv_ptr + 12); |
| 862 | |
| 863 | is_physical_addr = (res == 1); |
| 864 | |
| 865 | DBGRD( printf("write %s memory @ 0x%llx [ 0x%x bytes]\n", |
| 866 | is_physical_addr ? "physical" : "virtual", |
| 867 | vaddr, len);); |
| 868 | |
| 869 | len = ptp->dbgr_mem_write(dbgrp->pspecp, vaddr, !is_physical_addr, |
| 870 | dbgrp->recv_ptr+16, len); |
| 871 | |
| 872 | if (len == 0) { |
| 873 | DBGRD( fprintf(stdout, "Failed reading memory"); ); |
| 874 | send_buffer( dbgrp, Sim_Mem_Write_Failed_No_Mem, 0); |
| 875 | return; |
| 876 | } |
| 877 | |
| 878 | send_buffer( dbgrp, Sim_Mem_Write_OK, 0); |
| 879 | } |
| 880 | |
| 881 | |
| 882 | |
| 883 | |
| 884 | |
| 885 | |
| 886 | static void if_clear_memory(debugger_t * dbgrp) |
| 887 | { |
| 888 | tvaddr_t vaddr; |
| 889 | uint32_t len, res; |
| 890 | int offset; |
| 891 | int num; |
| 892 | uint64_t slen; |
| 893 | bool_t is_physical_addr; |
| 894 | proc_type_t * ptp; |
| 895 | |
| 896 | ptp = dbgrp->config_procp->proc_typep; |
| 897 | |
| 898 | vaddr = get_uint64(dbgrp->recv_ptr); |
| 899 | len = get_uint32(dbgrp->recv_ptr + 8); |
| 900 | res = get_uint32(dbgrp->recv_ptr + 12); |
| 901 | |
| 902 | is_physical_addr = (res == 1); |
| 903 | |
| 904 | DBGRD( printf("clear %s memory @ 0x%llx [ 0x%x bytes]\n", |
| 905 | is_physical_addr ? "physical" : "virtual", |
| 906 | vaddr, len);); |
| 907 | |
| 908 | len = ptp->dbgr_mem_clear(dbgrp->pspecp, vaddr, !is_physical_addr, len); |
| 909 | |
| 910 | if (len == 0) { |
| 911 | DBGRD( fprintf(stdout, "Failed clearing memory"); ); |
| 912 | send_buffer( dbgrp, Sim_Mem_Clear_Failed_No_Mem, 0); |
| 913 | return; |
| 914 | } |
| 915 | |
| 916 | send_buffer( dbgrp, Sim_Mem_Clear_OK, 0); |
| 917 | } |
| 918 | |
| 919 | |
| 920 | |
| 921 | |
| 922 | |
| 923 | |
| 924 | |
| 925 | |
| 926 | |
| 927 | |
| 928 | |
| 929 | |
| 930 | |
| 931 | |
| 932 | /* |
| 933 | * We enter here with the main program thread |
| 934 | * to wait for user interface connections. |
| 935 | * we never leave this function. |
| 936 | * |
| 937 | * The simulator closes ungracefully using exit() |
| 938 | * to kill its threads ... |
| 939 | */ |
| 940 | |
| 941 | void interface_wait() |
| 942 | { |
| 943 | static fd_set comm_channels; |
| 944 | int tcp_attach_socket, res; |
| 945 | struct sockaddr_in tcp_server; |
| 946 | struct sockaddr_in from; |
| 947 | int fromlen; |
| 948 | int skt; |
| 949 | int fh, length, on=1; |
| 950 | int max_channel; |
| 951 | sigset_t sigs; |
| 952 | struct hostent * hp; |
| 953 | char * froms; |
| 954 | int retry_cnt=0; |
| 955 | |
| 956 | sigfillset(&sigs); |
| 957 | pthread_sigmask(SIG_BLOCK, &sigs, NULL); |
| 958 | |
| 959 | skt = socket(AF_INET, SOCK_STREAM, 0); |
| 960 | if (skt < 0) fatal("opening stream socket"); |
| 961 | |
| 962 | /* enable the reuse of this socket if this process dies */ |
| 963 | if (setsockopt(skt,SOL_SOCKET,SO_REUSEADDR,(char*)&on,sizeof(on))<0) |
| 964 | fatal("turning on REUSEADDR"); |
| 965 | |
| 966 | /* bind it */ |
| 967 | retry:; |
| 968 | tcp_server.sin_family = AF_INET; |
| 969 | tcp_server.sin_addr.s_addr = INADDR_ANY; |
| 970 | tcp_server.sin_port = options.accept_port; |
| 971 | if (bind(skt, (struct sockaddr *)&tcp_server, sizeof(tcp_server)) < 0) { |
| 972 | switch (errno) { |
| 973 | case EAGAIN: |
| 974 | goto retry; |
| 975 | |
| 976 | case EADDRINUSE: |
| 977 | printf("\nPort %d already in use ", options.accept_port); |
| 978 | |
| 979 | /* user specific a port and it's not available, fatal */ |
| 980 | if (options.specific_port) { |
| 981 | printf("\n"); |
| 982 | fatal("Port %d already in use, try another", |
| 983 | options.accept_port); |
| 984 | } |
| 985 | |
| 986 | /* check if we should retry another port */ |
| 987 | if (retry_cnt >= options.port_retry_max) { |
| 988 | printf("\n"); |
| 989 | fatal("Max no of retries (%d) reached, use -P -or -p ", |
| 990 | options.port_retry_max); |
| 991 | } |
| 992 | |
| 993 | /* try the next port */ |
| 994 | options.accept_port++; |
| 995 | retry_cnt++; |
| 996 | printf("- trying %d", options.accept_port); |
| 997 | goto retry; |
| 998 | default: |
| 999 | fatal("binding tcp stream socket"); |
| 1000 | } |
| 1001 | } |
| 1002 | |
| 1003 | /* this not necessary */ |
| 1004 | length = sizeof(tcp_server); |
| 1005 | if (getsockname(skt, (struct sockaddr *) &tcp_server, &length)==-1) |
| 1006 | fatal("getting socket name"); |
| 1007 | PRINTF(("\nWaiting for connection on port # %d\n", |
| 1008 | ntohs(tcp_server.sin_port))); |
| 1009 | |
| 1010 | listen(skt, MAX_CONNECTIONS); |
| 1011 | |
| 1012 | tcp_attach_socket = skt; |
| 1013 | max_channel = tcp_attach_socket; |
| 1014 | FD_ZERO(&comm_channels); |
| 1015 | FD_SET(tcp_attach_socket, &comm_channels); |
| 1016 | |
| 1017 | /* |
| 1018 | * Wait for a control connection |
| 1019 | */ |
| 1020 | |
| 1021 | do { |
| 1022 | debugger_t * dbgrp; |
| 1023 | |
| 1024 | res = select(max_channel+1, &comm_channels, (fd_set*)0, (fd_set*)0, (struct timeval*)0 /* stall */); |
| 1025 | if (res<0) fatal("select"); |
| 1026 | |
| 1027 | /* |
| 1028 | * accept the connection |
| 1029 | */ |
| 1030 | |
| 1031 | fromlen = sizeof(from); |
| 1032 | fh = accept(tcp_attach_socket,(struct sockaddr *)&from, (int*)&fromlen); |
| 1033 | |
| 1034 | |
| 1035 | hp = gethostbyaddr((char *)&from.sin_addr, 4, AF_INET); |
| 1036 | if (hp == (struct hostent *)0) { |
| 1037 | froms = inet_ntoa(from.sin_addr); |
| 1038 | fprintf(stderr,"cant resolve hostname for %s\n", froms);; |
| 1039 | } else { |
| 1040 | froms = hp->h_name; |
| 1041 | } |
| 1042 | fprintf(stderr,"connection from %s : port %d\n", froms, from.sin_port); |
| 1043 | |
| 1044 | |
| 1045 | /* |
| 1046 | * Create the thread to handle this debugger |
| 1047 | * connection. It cleans up after itself |
| 1048 | * if anything goes wrong. |
| 1049 | */ |
| 1050 | |
| 1051 | dbgrp = Xcalloc(1, debugger_t); |
| 1052 | |
| 1053 | dbgrp->socket = fh; |
| 1054 | dbgrp->state = DS_unattached; |
| 1055 | |
| 1056 | pthread_mutex_init(&dbgrp->stop_lock, NULL); |
| 1057 | pthread_cond_init(&dbgrp->stop_cv, NULL); |
| 1058 | |
| 1059 | callback_register(CB_Breakpoint, dbgrif_stop_cb, (void *)dbgrp); |
| 1060 | |
| 1061 | create_thread(dbgrif, (void*)dbgrp, &dbgrp->pthread_id); |
| 1062 | |
| 1063 | } while (1); |
| 1064 | } |
| 1065 | |
| 1066 | |
| 1067 | |
| 1068 | |
| 1069 | |
| 1070 | #if 0 /* { */ |
| 1071 | |
| 1072 | /* |
| 1073 | * These functions are called, not from the debugger IF thread, |
| 1074 | * but from the simulation execution thread. It is a callback |
| 1075 | * notification to the debugger - during simulation to load |
| 1076 | * a new symbol table file. |
| 1077 | */ |
| 1078 | |
| 1079 | void remdeb_symtab_add_callback(sym_file_t * sym_filep) |
| 1080 | { |
| 1081 | if (flag_remdeb_if) { |
| 1082 | DBGRD( printf("load symtab %s\n",sym_filep->namep);); |
| 1083 | |
| 1084 | dbgr.exec_state = Exec_symtab_load; |
| 1085 | assert( dbgr.sym_filep == (sym_file_t *)0); |
| 1086 | dbgr.sym_filep = sym_filep; |
| 1087 | |
| 1088 | stop_cmd((char*)0, dbgr.cmd_ptr); |
| 1089 | } |
| 1090 | } |
| 1091 | |
| 1092 | |
| 1093 | #endif /* } */ |
| 1094 | |
| 1095 | |
| 1096 | |
| 1097 | |
| 1098 | |
| 1099 | |
| 1100 | |
| 1101 | #if 0 |
| 1102 | /* Delete a block of symbols (object file) |
| 1103 | */ |
| 1104 | |
| 1105 | void remdeb_symtab_delete_callback(uint64_t symtab_id) |
| 1106 | { |
| 1107 | if (flag_remdeb_if) { |
| 1108 | DBGRD( printf("delete symtab 0x%llx\n",symtab_id);); |
| 1109 | } |
| 1110 | } |
| 1111 | /* Change the offset on a block of symbols ... |
| 1112 | */ |
| 1113 | |
| 1114 | void remdeb_symtab_offset_callback(uint64_t symtab_id, uint64_t offset, char * sectp) |
| 1115 | { |
| 1116 | if (flag_remdeb_if) { |
| 1117 | DBGRD( printf("change symtab 0x%llx : section [%s] offset 0x%llx\n",symtab_id, sectp ? sectp : "(NULL)", offset);); |
| 1118 | } |
| 1119 | } |
| 1120 | #endif |
| 1121 | |
| 1122 | |
| 1123 | |
| 1124 | |
| 1125 | |
| 1126 | |
| 1127 | |
| 1128 | /* |
| 1129 | * basic IO routines to help |
| 1130 | */ |
| 1131 | |
| 1132 | |
| 1133 | static int send_buffer(debugger_t * dbgrp, protocol_t cmd, int num) |
| 1134 | { |
| 1135 | int res; |
| 1136 | |
| 1137 | dbgrp->send_buffer_p[0] = num >> 8; |
| 1138 | dbgrp->send_buffer_p[1] = num & 0xff; |
| 1139 | dbgrp->send_buffer_p[2] = (unsigned char) cmd; |
| 1140 | |
| 1141 | res = write(dbgrp->socket, dbgrp->send_buffer_p, 3+num); |
| 1142 | |
| 1143 | return (res != 3+num) ? -1 : 0; |
| 1144 | } |
| 1145 | |
| 1146 | |
| 1147 | |
| 1148 | |
| 1149 | static protocol_t recv_buffer(debugger_t * dbgrp, int * nrecvdp) |
| 1150 | { |
| 1151 | int len, num; |
| 1152 | len = do_recv(dbgrp->socket, dbgrp->recv_buffer_p, 3); |
| 1153 | if (len != 3) return Receive_error; |
| 1154 | |
| 1155 | len = dbgrp->recv_buffer_p[1] + (dbgrp->recv_buffer_p[0]<<8); /* big endian network order */ |
| 1156 | |
| 1157 | num = do_recv(dbgrp->socket, dbgrp->recv_ptr, len); |
| 1158 | |
| 1159 | if (num != len) return Receive_error; |
| 1160 | |
| 1161 | if (nrecvdp != (void*)0) *nrecvdp = num; |
| 1162 | |
| 1163 | return (protocol_t)dbgrp->recv_buffer_p[2]; |
| 1164 | } |
| 1165 | |
| 1166 | |
| 1167 | |
| 1168 | static int do_recv(int skt, unsigned char * ptr, int expect) |
| 1169 | { |
| 1170 | int idx, num; |
| 1171 | |
| 1172 | for (idx=0; idx<expect; idx+=num) { |
| 1173 | num = read(skt, ptr + idx, expect-idx); |
| 1174 | if (num<0) return -1; |
| 1175 | } |
| 1176 | |
| 1177 | return idx; |
| 1178 | } |
| 1179 | |
| 1180 | |
| 1181 | |
| 1182 | |
| 1183 | static uint16_t get_uint16(uint8_t * bp) |
| 1184 | { |
| 1185 | uint16_t val; |
| 1186 | |
| 1187 | val = (uint16_t)bp[0]; |
| 1188 | val = (val<<8) | (uint16_t)bp[1]; |
| 1189 | |
| 1190 | return val; |
| 1191 | } |
| 1192 | |
| 1193 | static uint32_t get_uint32(uint8_t * bp) |
| 1194 | { |
| 1195 | uint32_t val; |
| 1196 | |
| 1197 | val = (uint32_t)bp[0]; |
| 1198 | val = (val<<8) | (uint32_t)bp[1]; |
| 1199 | val = (val<<8) | (uint32_t)bp[2]; |
| 1200 | val = (val<<8) | (uint32_t)bp[3]; |
| 1201 | |
| 1202 | return val; |
| 1203 | } |
| 1204 | |
| 1205 | static uint64_t get_uint64(uint8_t * bp) |
| 1206 | { |
| 1207 | uint64_t val; |
| 1208 | |
| 1209 | val = (uint64_t)bp[0]; |
| 1210 | val = (val<<8) | (uint64_t)bp[1]; |
| 1211 | val = (val<<8) | (uint64_t)bp[2]; |
| 1212 | val = (val<<8) | (uint64_t)bp[3]; |
| 1213 | val = (val<<8) | (uint64_t)bp[4]; |
| 1214 | val = (val<<8) | (uint64_t)bp[5]; |
| 1215 | val = (val<<8) | (uint64_t)bp[6]; |
| 1216 | val = (val<<8) | (uint64_t)bp[7]; |
| 1217 | |
| 1218 | return val; |
| 1219 | } |
| 1220 | |
| 1221 | |
| 1222 | static void put_uint16(uint8_t * bp, uint16_t val) |
| 1223 | { |
| 1224 | bp[0] = (uint8_t)(val >> 8); |
| 1225 | bp[1] = (uint8_t)(val); |
| 1226 | } |
| 1227 | |
| 1228 | static void put_uint32(uint8_t * bp, uint32_t val) |
| 1229 | { |
| 1230 | bp[0] = (uint8_t)(val >> 24); |
| 1231 | bp[1] = (uint8_t)(val >> 16); |
| 1232 | bp[2] = (uint8_t)(val >> 8); |
| 1233 | bp[3] = (uint8_t)(val); |
| 1234 | } |
| 1235 | |
| 1236 | |
| 1237 | static void put_uint64(uint8_t * bp, uint64_t val) |
| 1238 | { |
| 1239 | bp[0] = (uint8_t)(val >> 56); |
| 1240 | bp[1] = (uint8_t)(val >> 48); |
| 1241 | bp[2] = (uint8_t)(val >> 40); |
| 1242 | bp[3] = (uint8_t)(val >> 32); |
| 1243 | bp[4] = (uint8_t)(val >> 24); |
| 1244 | bp[5] = (uint8_t)(val >> 16); |
| 1245 | bp[6] = (uint8_t)(val >> 8); |
| 1246 | bp[7] = (uint8_t)(val); |
| 1247 | } |
| 1248 | |