/* * netlink/socket.h Netlink Socket * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation version 2.1 * of the License. * * Copyright (c) 2003-2008 Thomas Graf */ #ifndef NETLINK_SOCKET_H_ #define NETLINK_SOCKET_H_ #include #include #ifdef __cplusplus extern "C" { #endif #define NL_SOCK_BUFSIZE_SET (1<<0) #define NL_SOCK_PASSCRED (1<<1) #define NL_OWN_PORT (1<<2) #define NL_MSG_PEEK (1<<3) #define NL_NO_AUTO_ACK (1<<4) struct nl_cb; struct nl_sock { struct sockaddr_nl s_local; struct sockaddr_nl s_peer; int s_fd; int s_proto; unsigned int s_seq_next; unsigned int s_seq_expect; int s_flags; struct nl_cb * s_cb; }; extern struct nl_sock * nl_socket_alloc(void); extern struct nl_sock * nl_socket_alloc_cb(struct nl_cb *); extern void nl_socket_free(struct nl_sock *); extern void nl_socket_set_local_port(struct nl_sock *, uint32_t); extern int nl_socket_add_memberships(struct nl_sock *, int, ...); extern int nl_socket_drop_memberships(struct nl_sock *, int, ...); extern int nl_socket_set_buffer_size(struct nl_sock *, int, int); extern int nl_socket_set_passcred(struct nl_sock *, int); extern int nl_socket_recv_pktinfo(struct nl_sock *, int); extern void nl_socket_disable_seq_check(struct nl_sock *); extern int nl_socket_set_nonblocking(struct nl_sock *); /** * Use next sequence number * @arg sk Netlink socket. * * Uses the next available sequence number and increases the counter * by one for subsequent calls. * * @return Unique serial sequence number */ static inline unsigned int nl_socket_use_seq(struct nl_sock *sk) { return sk->s_seq_next++; } /** * Disable automatic request for ACK * @arg sk Netlink socket. * * The default behaviour of a socket is to request an ACK for * each message sent to allow for the caller to synchronize to * the completion of the netlink operation. This function * disables this behaviour and will result in requests being * sent which will not have the NLM_F_ACK flag set automatically. * However, it is still possible for the caller to set the * NLM_F_ACK flag explicitely. */ static inline void nl_socket_disable_auto_ack(struct nl_sock *sk) { sk->s_flags |= NL_NO_AUTO_ACK; } /** * Enable automatic request for ACK (default) * @arg sk Netlink socket. * @see nl_socket_disable_auto_ack */ static inline void nl_socket_enable_auto_ack(struct nl_sock *sk) { sk->s_flags &= ~NL_NO_AUTO_ACK; } /** * @name Source Idenficiation * @{ */ static inline uint32_t nl_socket_get_local_port(struct nl_sock *sk) { return sk->s_local.nl_pid; } /** * Join multicast groups (deprecated) * @arg sk Netlink socket. * @arg groups Bitmask of groups to join. * * This function defines the old way of joining multicast group which * has to be done prior to calling nl_connect(). It works on any kernel * version but is very limited as only 32 groups can be joined. */ static inline void nl_join_groups(struct nl_sock *sk, int groups) { sk->s_local.nl_groups |= groups; } /** * @name Peer Identfication * @{ */ static inline uint32_t nl_socket_get_peer_port(struct nl_sock *sk) { return sk->s_peer.nl_pid; } static inline void nl_socket_set_peer_port(struct nl_sock *sk, uint32_t port) { sk->s_peer.nl_pid = port; } /** @} */ /** * @name File Descriptor * @{ */ static inline int nl_socket_get_fd(struct nl_sock *sk) { return sk->s_fd; } /** * Enable use of MSG_PEEK when reading from socket * @arg sk Netlink socket. */ static inline void nl_socket_enable_msg_peek(struct nl_sock *sk) { sk->s_flags |= NL_MSG_PEEK; } /** * Disable use of MSG_PEEK when reading from socket * @arg sk Netlink socket. */ static inline void nl_socket_disable_msg_peek(struct nl_sock *sk) { sk->s_flags &= ~NL_MSG_PEEK; } static inline uint32_t nl_socket_get_peer_groups(struct nl_sock *sk) { return sk->s_peer.nl_groups; } static inline void nl_socket_set_peer_groups(struct nl_sock *sk, uint32_t groups) { sk->s_peer.nl_groups = groups; } /** * @name Callback Handler * @{ */ static inline struct nl_cb *nl_socket_get_cb(struct nl_sock *sk) { return nl_cb_get(sk->s_cb); } static inline void nl_socket_set_cb(struct nl_sock *sk, struct nl_cb *cb) { nl_cb_put(sk->s_cb); sk->s_cb = nl_cb_get(cb); } /** * Modify the callback handler associated to the socket * @arg sk Netlink socket. * @arg type which type callback to set * @arg kind kind of callback * @arg func callback function * @arg arg argument to be passwd to callback function * * @see nl_cb_set */ static inline int nl_socket_modify_cb(struct nl_sock *sk, enum nl_cb_type type, enum nl_cb_kind kind, nl_recvmsg_msg_cb_t func, void *arg) { return nl_cb_set(sk->s_cb, type, kind, func, arg); } /** @} */ static inline int nl_socket_add_membership(struct nl_sock *sk, int group) { return nl_socket_add_memberships(sk, group, 0); } static inline int nl_socket_drop_membership(struct nl_sock *sk, int group) { return nl_socket_drop_memberships(sk, group, 0); } #ifdef __cplusplus } #endif #endif ='n80' href='#n80'>80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 
/*
 *  yosys -- Yosys Open SYnthesis Suite
 *
 *  Copyright (C) 2012  Clifford Wolf <clifford@clifford.at>
 *
 *  Permission to use, copy, modify, and/or distribute this software for any
 *  purpose with or without fee is hereby granted, provided that the above
 *  copyright notice and this permission notice appear in all copies.
 *
 *  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 *  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 *  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 *  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 *  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 *  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 *  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 */

#include "kernel/yosys.h"
#include "libs/sha1/sha1.h"
#include "backends/ilang/ilang_backend.h"

#if !defined(_WIN32) || defined(__MINGW32__)
#  include <sys/time.h>
#endif

#if defined(__linux__) || defined(__FreeBSD__)
#  include <dlfcn.h>
#endif

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include <vector>
#include <list>

YOSYS_NAMESPACE_BEGIN

std::vector<FILE*> log_files;
std::vector<std::ostream*> log_streams;
std::map<std::string, std::set<std::string>> log_hdump;
std::vector<std::regex> log_warn_regexes, log_nowarn_regexes, log_werror_regexes;
std::set<std::string> log_warnings;
int log_warnings_count = 0;
bool log_hdump_all = false;
FILE *log_errfile = NULL;
SHA1 *log_hasher = NULL;

bool log_time = false;
bool log_error_stderr = false;
bool log_cmd_error_throw = false;
bool log_quiet_warnings = false;
int log_verbose_level;
string log_last_error;
void (*log_error_atexit)() = NULL;

int log_make_debug = 0;
int log_force_debug = 0;
int log_debug_suppressed = 0;

vector<int> header_count;
vector<char*> log_id_cache;
vector<shared_str> string_buf;
int string_buf_index = -1;

static struct timeval initial_tv = { 0, 0 };
static bool next_print_log = false;
static int log_newline_count = 0;

static void log_id_cache_clear()
{
	for (auto p : log_id_cache)
		free(p);
	log_id_cache.clear();
}

#if defined(_WIN32) && !defined(__MINGW32__)
// this will get time information and return it in timeval, simulating gettimeofday()
int gettimeofday(struct timeval *tv, struct timezone *tz)
{
	LARGE_INTEGER counter;
	LARGE_INTEGER freq;

	QueryPerformanceFrequency(&freq);
	QueryPerformanceCounter(&counter);

	counter.QuadPart *= 1000000;
	counter.QuadPart /= freq.QuadPart;

	tv->tv_sec = long(counter.QuadPart / 1000000);
	tv->tv_usec = counter.QuadPart % 1000000;

	return 0;
}
#endif

void logv(const char *format, va_list ap)
{
	while (format[0] == '\n' && format[1] != 0) {
		log("\n");
		format++;
	}

	if (log_make_debug && !ys_debug(1))
		return;

	std::string str = vstringf(format, ap);

	if (str.empty())
		return;

	size_t nnl_pos = str.find_last_not_of('\n');
	if (nnl_pos == std::string::npos)
		log_newline_count += GetSize(str);
	else
		log_newline_count = GetSize(str) - nnl_pos - 1;

	if (log_hasher)
		log_hasher->update(str);

	if (log_time)
	{
		std::string time_str;

		if (next_print_log || initial_tv.tv_sec == 0) {
			next_print_log = false;
			struct timeval tv;
			gettimeofday(&tv, NULL);
			if (initial_tv.tv_sec == 0)
				initial_tv = tv;
			if (tv.tv_usec < initial_tv.tv_usec) {
				tv.tv_sec--;
				tv.tv_usec += 1000000;
			}
			tv.tv_sec -= initial_tv.tv_sec;
			tv.tv_usec -= initial_tv.tv_usec;
			time_str += stringf("[%05d.%06d] ", int(tv.tv_sec), int(tv.tv_usec));
		}

		if (format[0] && format[strlen(format)-1] == '\n')
			next_print_log = true;

		for (auto f : log_files)
			fputs(time_str.c_str(), f);

		for (auto f : log_streams)
			*f << time_str;
	}

	for (auto f : log_files)
		fputs(str.c_str(), f);

	for (auto f : log_streams)
		*f << str;

	static std::string linebuffer;
	static bool log_warn_regex_recusion_guard = false;

	if (!log_warn_regex_recusion_guard)
	{
		log_warn_regex_recusion_guard = true;

		if (log_warn_regexes.empty())
		{
			linebuffer.clear();
		}
		else
		{
			linebuffer += str;

			if (!linebuffer.empty() && linebuffer.back() == '\n') {
				for (auto &re : log_warn_regexes)
					if (std::regex_search(linebuffer, re))
						log_warning("Found log message matching -W regex:\n%s", str.c_str());
				linebuffer.clear();
			}
		}

		log_warn_regex_recusion_guard = false;
	}
}

void logv_header(RTLIL::Design *design, const char *format, va_list ap)
{
	bool pop_errfile = false;

	log_spacer();
	if (header_count.size() > 0)
		header_count.back()++;

	if (int(header_count.size()) <= log_verbose_level && log_errfile != NULL) {
		log_files.push_back(log_errfile);
		pop_errfile = true;
	}

	std::string header_id;

	for (int c : header_count)
		header_id += stringf("%s%d", header_id.empty() ? "" : ".", c);

	log("%s. ", header_id.c_str());
	logv(format, ap);
	log_flush();

	if (log_hdump_all)
		log_hdump[header_id].insert("yosys_dump_" + header_id + ".il");

	if (log_hdump.count(header_id) && design != nullptr)
		for (auto &filename : log_hdump.at(header_id)) {
			log("Dumping current design to '%s'.\n", filename.c_str());
			if (yosys_xtrace)
				IdString::xtrace_db_dump();
			Pass::call(design, {"dump", "-o", filename});
			if (yosys_xtrace)
				log("#X# -- end of dump --\n");
		}

	if (pop_errfile)
		log_files.pop_back();
}

static void logv_warning_with_prefix(const char *prefix,
                                     const char *format, va_list ap)
{
	std::string message = vstringf(format, ap);
	bool suppressed = false;

	for (auto &re : log_nowarn_regexes)
		if (std::regex_search(message, re))
			suppressed = true;

	if (suppressed)
	{
		log("Suppressed %s%s", prefix, message.c_str());
	}
	else
	{
		int bak_log_make_debug = log_make_debug;
		log_make_debug = 0;

		for (auto &re : log_werror_regexes)
			if (std::regex_search(message, re))
				log_error("%s",  message.c_str());

		if (log_warnings.count(message))
		{
			log("%s%s", prefix, message.c_str());
			log_flush();
		}
		else
		{
			if (log_errfile != NULL && !log_quiet_warnings)
				log_files.push_back(log_errfile);

			log("%s%s", prefix, message.c_str());
			log_flush();

			if (log_errfile != NULL && !log_quiet_warnings)
				log_files.pop_back();

			log_warnings.insert(message);
		}

		log_warnings_count++;
		log_make_debug = bak_log_make_debug;
	}
}

void logv_warning(const char *format, va_list ap)
{
	logv_warning_with_prefix("Warning: ", format, ap);
}

void logv_warning_noprefix(const char *format, va_list ap)
{
	logv_warning_with_prefix("", format, ap);
}

void log_file_warning(const std::string &filename, int lineno,
                      const char *format, ...)
{
	va_list ap;
	va_start(ap, format);
	std::string prefix = stringf("%s:%d: Warning: ",
			filename.c_str(), lineno);
	logv_warning_with_prefix(prefix.c_str(), format, ap);
	va_end(ap);
}

void log_file_info(const std::string &filename, int lineno,
                      const char *format, ...)
{
	va_list ap;
	va_start(ap, format);
	std::string fmt = stringf("%s:%d: Info: %s",
			filename.c_str(), lineno, format);
	logv(fmt.c_str(), ap);
	va_end(ap);
}

YS_ATTRIBUTE(noreturn)
static void logv_error_with_prefix(const char *prefix,
                                   const char *format, va_list ap)
{
#ifdef EMSCRIPTEN
	auto backup_log_files = log_files;
#endif
	int bak_log_make_debug = log_make_debug;
	log_make_debug = 0;
	log_suppressed();

	if (log_errfile != NULL)
		log_files.push_back(log_errfile);

	if (log_error_stderr)
		for (auto &f : log_files)
			if (f == stdout)
				f = stderr;

	log_last_error = vstringf(format, ap);
	log("%s%s", prefix, log_last_error.c_str());
	log_flush();

	log_make_debug = bak_log_make_debug;

	if (log_error_atexit)
		log_error_atexit();

#ifdef EMSCRIPTEN
	log_files = backup_log_files;
	throw 0;
#elif defined(_MSC_VER)
	_exit(1);
#else
	_Exit(1);
#endif
}

void logv_error(const char *format, va_list ap)
{
	logv_error_with_prefix("ERROR: ", format, ap);
}

void log_file_error(const string &filename, int lineno,
                    const char *format, ...)
{
	va_list ap;
	va_start(ap, format);
	std::string prefix = stringf("%s:%d: ERROR: ",
				     filename.c_str(), lineno);
	logv_error_with_prefix(prefix.c_str(), format, ap);
}

void log(const char *format, ...)
{
	va_list ap;
	va_start(ap, format);
	logv(format, ap);
	va_end(ap);
}

void log_header(RTLIL::Design *design, const char *format, ...)
{
	va_list ap;
	va_start(ap, format);
	logv_header(design, format, ap);
	va_end(ap);
}

void log_warning(const char *format, ...)
{
	va_list ap;
	va_start(ap, format);
	logv_warning(format, ap);
	va_end(ap);
}

void log_warning_noprefix(const char *format, ...)
{
	va_list ap;
	va_start(ap, format);
	logv_warning_noprefix(format, ap);
	va_end(ap);
}

void log_error(const char *format, ...)
{
	va_list ap;
	va_start(ap, format);
	logv_error(format, ap);
}

void log_cmd_error(const char *format, ...)
{
	va_list ap;
	va_start(ap, format);

	if (log_cmd_error_throw) {
		log_last_error = vstringf(format, ap);
		log("ERROR: %s", log_last_error.c_str());
		log_flush();
		throw log_cmd_error_exception();
	}

	logv_error(format, ap);
}

void log_spacer()
{
	if (log_newline_count < 2) log("\n");
	if (log_newline_count < 2) log("\n");
}

void log_push()
{
	header_count.push_back(0);
}

void log_pop()
{
	header_count.pop_back();
	log_id_cache_clear();
	string_buf.clear();
	string_buf_index = -1;
	log_flush();
}

#if (defined(__linux__) || defined(__FreeBSD__)) && defined(YOSYS_ENABLE_PLUGINS)
void log_backtrace(const char *prefix, int levels)
{
	if (levels <= 0) return;

	Dl_info dli;
	void *p;

	if ((p = __builtin_extract_return_addr(__builtin_return_address(0))) && dladdr(p, &dli)) {
		log("%sframe #1: %p %s(%p) %s(%p)\n", prefix, p, dli.dli_fname, dli.dli_fbase, dli.dli_sname, dli.dli_saddr);
	} else {
		log("%sframe #1: ---\n", prefix);
		return;
	}

	if (levels <= 1) return;

#ifndef DEBUG
	log("%sframe #2: [build Yosys with ENABLE_DEBUG for deeper backtraces]\n", prefix);
#else
	if ((p = __builtin_extract_return_addr(__builtin_return_address(1))) && dladdr(p, &dli)) {
		log("%sframe #2: %p %s(%p) %s(%p)\n", prefix, p, dli.dli_fname, dli.dli_fbase, dli.dli_sname, dli.dli_saddr);
	} else {
		log("%sframe #2: ---\n", prefix);
		return;
	}

	if (levels <= 2) return;

	if ((p = __builtin_extract_return_addr(__builtin_return_address(2))) && dladdr(p, &dli)) {
		log("%sframe #3: %p %s(%p) %s(%p)\n", prefix, p, dli.dli_fname, dli.dli_fbase, dli.dli_sname, dli.dli_saddr);
	} else {
		log("%sframe #3: ---\n", prefix);
		return;
	}

	if (levels <= 3) return;

	if ((p = __builtin_extract_return_addr(__builtin_return_address(3))) && dladdr(p, &dli)) {
		log("%sframe #4: %p %s(%p) %s(%p)\n", prefix, p, dli.dli_fname, dli.dli_fbase, dli.dli_sname, dli.dli_saddr);
	} else {
		log("%sframe #4: ---\n", prefix);
		return;
	}

	if (levels <= 4) return;

	if ((p = __builtin_extract_return_addr(__builtin_return_address(4))) && dladdr(p, &dli)) {
		log("%sframe #5: %p %s(%p) %s(%p)\n", prefix, p, dli.dli_fname, dli.dli_fbase, dli.dli_sname, dli.dli_saddr);
	} else {
		log("%sframe #5: ---\n", prefix);
		return;
	}

	if (levels <= 5) return;

	if ((p = __builtin_extract_return_addr(__builtin_return_address(5))) && dladdr(p, &dli)) {
		log("%sframe #6: %p %s(%p) %s(%p)\n", prefix, p, dli.dli_fname, dli.dli_fbase, dli.dli_sname, dli.dli_saddr);
	} else {
		log("%sframe #6: ---\n", prefix);
		return;
	}

	if (levels <= 6) return;

	if ((p = __builtin_extract_return_addr(__builtin_return_address(6))) && dladdr(p, &dli)) {
		log("%sframe #7: %p %s(%p) %s(%p)\n", prefix, p, dli.dli_fname, dli.dli_fbase, dli.dli_sname, dli.dli_saddr);
	} else {
		log("%sframe #7: ---\n", prefix);
		return;
	}

	if (levels <= 7) return;

	if ((p = __builtin_extract_return_addr(__builtin_return_address(7))) && dladdr(p, &dli)) {
		log("%sframe #8: %p %s(%p) %s(%p)\n", prefix, p, dli.dli_fname, dli.dli_fbase, dli.dli_sname, dli.dli_saddr);
	} else {
		log("%sframe #8: ---\n", prefix);
		return;
	}

	if (levels <= 8) return;

	if ((p = __builtin_extract_return_addr(__builtin_return_address(8))) && dladdr(p, &dli)) {
		log("%sframe #9: %p %s(%p) %s(%p)\n", prefix, p, dli.dli_fname, dli.dli_fbase, dli.dli_sname, dli.dli_saddr);
	} else {
		log("%sframe #9: ---\n", prefix);
		return;
	}

	if (levels <= 9) return;
#endif
}
#else
void log_backtrace(const char*, int) { }
#endif

void log_reset_stack()
{
	while (header_count.size() > 1)
		header_count.pop_back();
	log_id_cache_clear();
	string_buf.clear();
	string_buf_index = -1;
	log_flush();
}

void log_flush()
{
	for (auto f : log_files)
		fflush(f);

	for (auto f : log_streams)
		f->flush();
}

void log_dump_val_worker(RTLIL::IdString v) {
	log("%s", log_id(v));
}

void log_dump_val_worker(RTLIL::SigSpec v) {
	log("%s", log_signal(v));
}

const char *log_signal(const RTLIL::SigSpec &sig, bool autoint)
{
	std::stringstream buf;
	ILANG_BACKEND::dump_sigspec(buf, sig, autoint);

	if (string_buf.size() < 100) {
		string_buf.push_back(buf.str());
		return string_buf.back().c_str();
	} else {
		if (++string_buf_index == 100)
			string_buf_index = 0;
		string_buf[string_buf_index] = buf.str();
		return string_buf[string_buf_index].c_str();
	}
}

const char *log_const(const RTLIL::Const &value, bool autoint)
{
	if ((value.flags & RTLIL::CONST_FLAG_STRING) == 0)
		return log_signal(value, autoint);

	std::string str = "\"" + value.decode_string() + "\"";

	if (string_buf.size() < 100) {
		string_buf.push_back(str);
		return string_buf.back().c_str();
	} else {
		if (++string_buf_index == 100)
			string_buf_index = 0;
		string_buf[string_buf_index] = str;
		return string_buf[string_buf_index].c_str();
	}
}

const char *log_id(RTLIL::IdString str)
{
	log_id_cache.push_back(strdup(str.c_str()));
	const char *p = log_id_cache.back();
	if (p[0] != '\\')
		return p;
	if (p[1] == '$' || p[1] == '\\' || p[1] == 0)
		return p;
	if (p[1] >= '0' && p[1] <= '9')
		return p;
	return p+1;
}

void log_module(RTLIL::Module *module, std::string indent)
{
	std::stringstream buf;
	ILANG_BACKEND::dump_module(buf, indent, module, module->design, false);
	log("%s", buf.str().c_str());
}

void log_cell(RTLIL::Cell *cell, std::string indent)
{
	std::stringstream buf;
	ILANG_BACKEND::dump_cell(buf, indent, cell);
	log("%s", buf.str().c_str());
}

void log_wire(RTLIL::Wire *wire, std::string indent)
{
	std::stringstream buf;
	ILANG_BACKEND::dump_wire(buf, indent, wire);
	log("%s", buf.str().c_str());
}

// ---------------------------------------------------
// This is the magic behind the code coverage counters
// ---------------------------------------------------
#if defined(YOSYS_ENABLE_COVER) && (defined(__linux__) || defined(__FreeBSD__))

dict<std::string, std::pair<std::string, int>> extra_coverage_data;

void cover_extra(std::string parent, std::string id, bool increment) {
	if (extra_coverage_data.count(id) == 0) {
		for (CoverData *p = __start_yosys_cover_list; p != __stop_yosys_cover_list; p++)
			if (p->id == parent)
				extra_coverage_data[id].first = stringf("%s:%d:%s", p->file, p->line, p->func);
		log_assert(extra_coverage_data.count(id));
	}
	if (increment)
		extra_coverage_data[id].second++;