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yosys/kernel/driver.cc

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/*
* 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 "kernel/rtlil.h"
#include "kernel/register.h"
#include "kernel/log.h"
#include <string.h>
#include <unistd.h>
#include <dlfcn.h>
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));
char buffer[4096];
while (fgets(buffer, 4096, f) != NULL) {
Pass::call(design, buffer);
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
log_error("Can't guess frontend for input file `%s' (missing -f option)!\n", filename.c_str());
}
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)
{
static char buffer[100];
std::string str = "\nyosys";
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 bool recursion_detect = false;
if (recursion_detect) {
log("Already in interactive shell.\n");
return;
}
recursion_detect = true;
log_cmd_error_throw = true;
rl_readline_name = "yosys";
rl_attempted_completion_function = readline_completion;
char *command = NULL;
while ((command = readline(create_prompt(design))) != NULL)
{
if (command[strspn(command, " \t\r\n")] == 0)
continue;
add_history(command);
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();
}
}
recursion_detect = false;
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 interavtive 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 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;
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 got_output_filename = false;
int opt;
while ((opt = getopt(argc, argv, "m:f:b:o:p:l:qts:")) != -1)
{
switch (opt)
{
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;
break;
default:
fprintf(stderr, "\n");
fprintf(stderr, "Usage: %s [-q] [-t] [-l logfile] [-o <outfile>] [-f <frontend>] [-s <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, " -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, "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();
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())
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;
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);
return 0;
}
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