summaryrefslogtreecommitdiff
path: root/kernel/driver.cc
blob: f06c784d8d53bd730f6fe38d35732615bbf1c9e8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
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
/*
 *  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 <stdio.h>
#include <readline/readline.h>
#include <readline/history.h>
#include <string.h>
#include <unistd.h>
#include <dlfcn.h>

#include "kernel/rtlil.h"
#include "kernel/register.h"
#include "kernel/log.h"

bool fgetline(FILE *f, std::string &buffer)
{
	buffer = "";
	char block[4096];
	while (1) {
		if (fgets(block, 4096, f) == NULL)
			return false;
		buffer += block;
		if (buffer.size() > 0 && (buffer[buffer.size()-1] == '\n' ||  buffer[buffer.size()-1] == '\r'))
			return true;
	}
}

static void run_frontend(std::string filename, std::string command, RTLIL::Design *design, std::string *backend_command)
{
	if (command == "auto") {
		if (filename.size() > 2 && filename.substr(filename.size()-2) == ".v")
			command = "verilog";
		else if (filename.size() > 3 && filename.substr(filename.size()-3) == ".il")
			command = "ilang";
		else if (filename.size() > 3 && filename.substr(filename.size()-3) == ".ys")
			command = "script";
		else if (filename == "-")
			command = "script";
		else
			log_error("Can't guess frontend for input file `%s' (missing -f option)!\n", filename.c_str());
	}

	if (command == "script") {
		log("\n-- Executing script file `%s' --\n", filename.c_str());
		FILE *f = stdin;
		if (filename != "-")
			f = fopen(filename.c_str(), "r");
		if (f == NULL)
			log_error("Can't open script file `%s' for reading: %s\n", filename.c_str(), strerror(errno));
		std::string command;
		while (fgetline(f, command)) {
			Pass::call(design, command);
			design->check();
		}
		if (!command.empty()) {
			Pass::call(design, command);
			design->check();
		}
		if (filename != "-")
			fclose(f);
		if (backend_command != NULL && *backend_command == "auto")
			*backend_command = "";
		return;
	}

	if (filename == "-") {
		log("\n-- Parsing stdin using frontend `%s' --\n", command.c_str());
	} else {
		log("\n-- Parsing `%s' using frontend `%s' --\n", filename.c_str(), command.c_str());
	}

	Frontend::frontend_call(design, NULL, filename, command);
	design->check();
}

static void run_pass(std::string command, RTLIL::Design *design)
{
	log("\n-- Running pass `%s' --\n", command.c_str());

	Pass::call(design, command);
	design->check();
}

static void run_backend(std::string filename, std::string command, RTLIL::Design *design)
{
	if (command == "auto") {
		if (filename.size() > 2 && filename.substr(filename.size()-2) == ".v")
			command = "verilog";
		else if (filename.size() > 3 && filename.substr(filename.size()-3) == ".il")
			command = "ilang";
		else if (filename == "-")
			command = "ilang";
		else if (filename.empty())
			return;
		else
			log_error("Can't guess frontend for input file `%s' (missing -f option)!\n", filename.c_str());
	}

	if (filename.empty())
		filename = "-";

	if (filename == "-") {
		log("\n-- Writing to stdout using backend `%s' --\n", command.c_str());
	} else {
		log("\n-- Writing to `%s' using backend `%s' --\n", filename.c_str(), command.c_str());
	}

	Backend::backend_call(design, NULL, filename, command);
	design->check();
}

static char *readline_cmd_generator(const char *text, int state)
{
	static std::map<std::string, Pass*>::iterator it;
	static int len;

	if (!state) {
		it = REGISTER_INTERN::pass_register.begin();
		len = strlen(text);
	}

	for (; it != REGISTER_INTERN::pass_register.end(); it++) {
		if (it->first.substr(0, len) == text)
			return strdup((it++)->first.c_str());
	}
	return NULL;
}

static char **readline_completion(const char *text, int start, int)
{
	if (start == 0)
		return rl_completion_matches(text, readline_cmd_generator);
	return NULL;
}

static const char *create_prompt(RTLIL::Design *design, int recursion_counter)
{
	static char buffer[100];
	std::string str = "\n";
	if (recursion_counter > 1)
		str += stringf("(%d) ", recursion_counter);
	str += "yosys";
	if (!design->selected_active_module.empty())
		str += stringf(" [%s]", design->selected_active_module.c_str());
	if (!design->selection_stack.back().full_selection) {
		if (design->selected_active_module.empty())
			str += "*";
		else if (design->selection_stack.back().selected_modules.size() != 1 || design->selection_stack.back().selected_members.size() != 0 ||
				design->selection_stack.back().selected_modules.count(design->selected_active_module) == 0)
			str += "*";
	}
	snprintf(buffer, 100, "%s> ", str.c_str());
	return buffer;
}

static void shell(RTLIL::Design *design)
{
	static int recursion_counter = 0;

	recursion_counter++;
	log_cmd_error_throw = true;

	rl_readline_name = "yosys";
	rl_attempted_completion_function = readline_completion;

	char *command = NULL;
	while ((command = readline(create_prompt(design, recursion_counter))) != NULL)
	{
		if (command[strspn(command, " \t\r\n")] == 0)
			continue;
		add_history(command);

		char *p = command + strspn(command, " \t\r\n");
		if (!strncmp(p, "exit", 4)) {
			p += 4;
			p += strspn(p, " \t\r\n");
			if (*p == 0)
				break;
		}

		try {
			assert(design->selection_stack.size() == 1);
			Pass::call(design, command);
		} catch (int) {
			while (design->selection_stack.size() > 1)
				design->selection_stack.pop_back();
			log_reset_stack();
		}
	}
	if (command == NULL)
		printf("exit\n");

	recursion_counter--;
	log_cmd_error_throw = false;
}

struct ShellPass : public Pass {
	ShellPass() : Pass("shell", "enter interactive command mode") { }
	virtual void help() {
		log("\n");
		log("    shell\n");
		log("\n");
		log("This command enters the interactive command mode. This can be useful\n");
		log("in a script to interrupt the script at a certain point and allow for\n");
		log("interactive inspection or manual synthesis of the design at this point.\n");
		log("\n");
		log("The command prompt of the interactive shell indicates the current\n");
		log("selection (see 'help select'):\n");
		log("\n");
		log("    yosys>\n");
		log("        the entire design is selected\n");
		log("\n");
		log("    yosys*>\n");
		log("        only part of the design is selected\n");
		log("\n");
		log("    yosys [modname]>\n");
		log("        the entire module 'modname' is selected using 'select -module modname'\n");
		log("\n");
		log("    yosys [modname]*>\n");
		log("        only part of current module 'modname' is selected\n");
		log("\n");
		log("When in interactive shell, some errors (e.g. invalid command arguments)\n");
		log("do not terminate yosys but return to the command prompt.\n");
		log("\n");
		log("This command is the default action if nothing else has been specified\n");
		log("on the command line.\n");
		log("\n");
		log("Press Ctrl-D or type 'exit' to leave the interactive shell.\n");
		log("\n");
	}
	virtual void execute(std::vector<std::string> args, RTLIL::Design *design) {
		extra_args(args, 1, design, false);
		shell(design);
	}
} ShellPass;

struct ScriptPass : public Pass {
	ScriptPass() : Pass("script", "execute commands from script file") { }
	virtual void help() {
		log("\n");
		log("    script <filename>\n");
		log("\n");
		log("This command executes the yosys commands in the specified file.\n");
		log("\n");
	}
	virtual void execute(std::vector<std::string> args, RTLIL::Design *design) {
		if (args.size() < 2)
			log_cmd_error("Missing script file.\n");
		if (args.size() > 2)
			extra_args(args, 1, design, false);
		run_frontend(args[1], "script", design, NULL);
	}
} ScriptPass;

#ifdef YOSYS_ENABLE_TCL
struct TclPass : public Pass {
	TclPass() : Pass("tcl", "execute a TCL script file") { }
	virtual void help() {
		log("\n");
		log("    tcl <filename>\n");
		log("\n");
		log("This command executes the tcl commands in the specified file.\n");
		log("Use 'yosys cmd' to run the yosys command 'cmd' from tcl.\n");
		log("\n");
	}
	virtual void execute(std::vector<std::string> args, RTLIL::Design *design) {
		if (args.size() < 2)
			log_cmd_error("Missing script file.\n");
		if (args.size() > 2)
			extra_args(args, 1, design, false);
		if (Tcl_EvalFile(yosys_tcl, args[1].c_str()) != TCL_OK)
			log_cmd_error("TCL interpreter returned an error: %s\n", Tcl_GetStringResult(yosys_tcl));
	}
} TclPass;

static int tcl_yosys_cmd(ClientData, Tcl_Interp*, int argc, const char *argv[])
{
	std::vector<std::string> args;
	for (int i = 1; i < argc; i++)
		args.push_back(argv[i]);
	Pass::call(yosys_tcl_design, args);
	return TCL_OK;
}
#endif

int main(int argc, char **argv)
{
	std::string frontend_command = "auto";
	std::string backend_command = "auto";
	std::vector<std::string> passes_commands;
	std::vector<void*> loaded_modules;
	std::string output_filename = "";
	std::string scriptfile = "";
	bool scriptfile_tcl = false;
	bool got_output_filename = false;

#ifdef YOSYS_ENABLE_TCL
	yosys_tcl = Tcl_CreateInterp();
	Tcl_CreateCommand(yosys_tcl, "yosys", tcl_yosys_cmd, NULL, NULL);
#endif

	int opt;
	while ((opt = getopt(argc, argv, "Sm:f:b:o:p:l:qts:c:")) != -1)
	{
		switch (opt)
		{
		case 'S':
			backend_command = "verilog -noattr";
			passes_commands.push_back("hierarchy");
			passes_commands.push_back("proc");
			passes_commands.push_back("opt");
			passes_commands.push_back("memory");
			passes_commands.push_back("techmap");
			passes_commands.push_back("opt");
			break;
		case 'm':
			loaded_modules.push_back(dlopen(optarg, RTLD_LAZY|RTLD_GLOBAL));
			if (loaded_modules.back() == NULL) {
				fprintf(stderr, "Can't load module `%s': %s\n", optarg, dlerror());
				exit(1);
			}
			break;
		case 'f':
			frontend_command = optarg;
			break;
		case 'b':
			backend_command = optarg;
			break;
		case 'p':
			passes_commands.push_back(optarg);
			break;
		case 'o':
			output_filename = optarg;
			got_output_filename = true;
			break;
		case 'l':
			log_files.push_back(fopen(optarg, "wt"));
			if (log_files.back() == NULL) {
				fprintf(stderr, "Can't open log file `%s' for writing!\n", optarg);
				exit(1);
			}
			break;
		case 'q':
			log_errfile = stderr;
			break;
		case 't':
			log_time = true;
			break;
		case 's':
			scriptfile = optarg;
			scriptfile_tcl = false;
			break;
		case 'c':
			scriptfile = optarg;
			scriptfile_tcl = true;
			break;
		default:
			fprintf(stderr, "\n");
			fprintf(stderr, "Usage: %s [-S] [-q] [-t] [-l logfile] [-o <outfile>] [-f <frontend>] [{-s|-c} <scriptfile>]\n", argv[0]);
			fprintf(stderr, "       %*s[-p <pass> [-p ..]] [-b <backend>] [-m <module_file>] [<infile> [..]]\n", int(strlen(argv[0])+1), "");
			fprintf(stderr, "\n");
			fprintf(stderr, "    -q\n");
			fprintf(stderr, "        quiet operation. only write error messages to console\n");
			fprintf(stderr, "\n");
			fprintf(stderr, "    -t\n");
			fprintf(stderr, "        annotate all log messages with a time stamp\n");
			fprintf(stderr, "\n");
			fprintf(stderr, "    -l logfile\n");
			fprintf(stderr, "        write log messages to the specified file\n");
			fprintf(stderr, "\n");
			fprintf(stderr, "    -o outfile\n");
			fprintf(stderr, "        write the design to the specified file on exit\n");
			fprintf(stderr, "\n");
			fprintf(stderr, "    -b backend\n");
			fprintf(stderr, "        use this backend for the output file specified on the command line\n");
			fprintf(stderr, "\n");
			fprintf(stderr, "    -f backend\n");
			fprintf(stderr, "        use the specified front for the input files on the command line\n");
			fprintf(stderr, "\n");
			fprintf(stderr, "    -s scriptfile\n");
			fprintf(stderr, "        execute the commands in the script file\n");
			fprintf(stderr, "\n");
			fprintf(stderr, "    -c tcl_scriptfile\n");
			fprintf(stderr, "        execute the commands in the tcl script file\n");
			fprintf(stderr, "        (use 'yosys cmd' to run the yosys command 'cmd' from tcl)\n");
			fprintf(stderr, "\n");
			fprintf(stderr, "    -p command\n");
			fprintf(stderr, "        execute the commands\n");
			fprintf(stderr, "\n");
			fprintf(stderr, "    -m module_file\n");
			fprintf(stderr, "        load the specified module (aka plugin)\n");
			fprintf(stderr, "\n");
			fprintf(stderr, "The option -S is an alias for the following options that perform a simple\n");
			fprintf(stderr, "transformation of the input to a gate-level netlist. This can be helpful when\n");
			fprintf(stderr, "e.g. using yosys as a pre-processor for a tool that can't understand full verilog.\n");
			fprintf(stderr, "\n");
			fprintf(stderr, "    -b 'verilog -noattr' -p hierarchy -p proc -p opt -p memory -p techmap -p opt\n");
			fprintf(stderr, "\n");
			fprintf(stderr, "For more complex synthesis jobs it is recommended to use the read_* and write_*\n");
			fprintf(stderr, "commands in a script file instead of specifying input and output files on the\n");
			fprintf(stderr, "command line.\n");
			fprintf(stderr, "\n");
			fprintf(stderr, "When no commands, script files and input files are specified on the command\n");
			fprintf(stderr, "line, yosys automatically enters the interactive command mode. Use the 'help'\n");
			fprintf(stderr, "command to get information on the individual commands.\n");
			fprintf(stderr, "\n");
			exit(1);
		}
	}

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

	log("\n");
	log(" /-----------------------------------------------------------------------------\\\n");
	log(" |                                                                             |\n");
	log(" |  yosys -- Yosys Open SYnthesis Suite                                        |\n");
	log(" |                                                                             |\n");
	log(" |  Copyright (C) 2012  Clifford Wolf <clifford@clifford.at>                   |\n");
	log(" |                                                                             |\n");
	log(" |  Permission to use, copy, modify, and/or distribute this software for any   |\n");
	log(" |  purpose with or without fee is hereby granted, provided that the above     |\n");
	log(" |  copyright notice and this permission notice appear in all copies.          |\n");
	log(" |                                                                             |\n");
	log(" |  THE SOFTWARE IS PROVIDED \"AS IS\" AND THE AUTHOR DISCLAIMS ALL WARRANTIES   |\n");
	log(" |  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF           |\n");
	log(" |  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR    |\n");
	log(" |  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES     |\n");
	log(" |  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN      |\n");
	log(" |  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF    |\n");
	log(" |  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.             |\n");
	log(" |                                                                             |\n");
	log(" \\-----------------------------------------------------------------------------/\n");
	log("\n");

	Pass::init_register();

	RTLIL::Design *design = new RTLIL::Design;
	design->selection_stack.push_back(RTLIL::Selection());
	log_push();

#ifdef YOSYS_ENABLE_TCL
	yosys_tcl_design = design;
#endif

	if (optind == argc && passes_commands.size() == 0 && scriptfile.empty()) {
		if (!got_output_filename)
			backend_command = "";
		shell(design);
	}

	while (optind < argc)
		run_frontend(argv[optind++], frontend_command, design, output_filename == "-" ? &backend_command : NULL);

	if (!scriptfile.empty()) {
		if (scriptfile_tcl) {
#ifdef YOSYS_ENABLE_TCL
			if (Tcl_EvalFile(yosys_tcl, scriptfile.c_str()) != TCL_OK)
				log_error("TCL interpreter returned an error: %s\n", Tcl_GetStringResult(yosys_tcl));
#else
			log_error("Can't exectue TCL script: this version of yosys is not built with TCL support enabled.\n");
#endif
		} else
			run_frontend(scriptfile, "script", design, output_filename == "-" ? &backend_command : NULL);
	}

	for (auto it = passes_commands.begin(); it != passes_commands.end(); it++)
		run_pass(*it, design);

	if (!backend_command.empty())
		run_backend(output_filename, backend_command, design);

	delete design;

#ifdef YOSYS_ENABLE_TCL
	yosys_tcl_design = NULL;
#endif

	log("\nREADY.\n");
	log_pop();

	for (auto f : log_files)
		if (f != stderr)
			fclose(f);
	log_errfile = NULL;
	log_files.clear();

	Pass::done_register();

	for (auto mod : loaded_modules)
		dlclose(mod);

#ifdef YOSYS_ENABLE_TCL
	Tcl_DeleteInterp(yosys_tcl);
#endif

	return 0;
}