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iverilog/main.cc

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const char COPYRIGHT[] =
"Copyright (c) 1998-2000 Stephen Williams (steve@icarus.com)";
/*
* This source code is free software; you can redistribute it
* and/or modify it in source code form under the terms of the GNU
* General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT) && !defined(macintosh)
#ident "$Id: main.cc,v 1.45 2001/07/16 18:14:56 steve Exp $"
#endif
const char NOTICE[] =
" This program is free software; you can redistribute it and/or modify\n"
" it under the terms of the GNU General Public License as published by\n"
" the Free Software Foundation; either version 2 of the License, or\n"
" (at your option) any later version.\n"
"\n"
" This program is distributed in the hope that it will be useful,\n"
" but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
" GNU General Public License for more details.\n"
"\n"
" You should have received a copy of the GNU General Public License\n"
" along with this program; if not, write to the Free Software\n"
" Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA\n"
;
# include <stdio.h>
# include <iostream.h>
# include <fstream>
# include <queue>
# include <map>
# include <unistd.h>
# include <stdlib.h>
#if defined(HAVE_TIMES)
# include <sys/times.h>
#endif
#if defined(HAVE_GETOPT_H)
# include <getopt.h>
#endif
# include "pform.h"
# include "netlist.h"
# include "target.h"
# include "compiler.h"
#if defined(__MINGW32__) && !defined(HAVE_GETOPT_H)
extern "C" int getopt(int argc, char*argv[], const char*fmt);
extern "C" int optind;
extern "C" const char*optarg;
#endif
const char VERSION[] = "$Name: $ $State: Exp $";
const char*target = "null";
string start_module = "";
map<string,string> flags;
/*
* These are the warning enable flags.
*/
bool warn_implicit = false;
static void parm_to_flagmap(const string&flag)
{
string key, value;
unsigned off = flag.find('=');
if (off > flag.size()) {
key = flag;
value = "";
} else {
key = flag.substr(0, off);
value = flag.substr(off+1);
}
flags[key] = value;
}
extern Design* elaborate(const map<string,Module*>&modules,
const map<string,PUdp*>&primitives,
const string&root);
extern void cprop(Design*des);
extern void synth(Design*des);
extern void syn_rules(Design*des);
extern void nodangle(Design*des);
extern void xnfio(Design*des);
typedef void (*net_func)(Design*);
static struct net_func_map {
const char*name;
void (*func)(Design*);
} func_table[] = {
{ "cprop", &cprop },
{ "nodangle",&nodangle },
{ "synth", &synth },
{ "syn-rules", &syn_rules },
{ "xnfio", &xnfio },
{ 0, 0 }
};
net_func name_to_net_func(const string&name)
{
for (unsigned idx = 0 ; func_table[idx].name ; idx += 1)
if (name == func_table[idx].name)
return func_table[idx].func;
return 0;
}
const char *net_func_to_name(const net_func func)
{
for (unsigned idx = 0 ; func_table[idx].name ; idx += 1)
if (func == func_table[idx].func)
return func_table[idx].name;
return "This cannot happen";
}
#if defined(HAVE_TIMES)
static double cycles_diff(struct tms *a, struct tms *b)
{
clock_t aa = a->tms_utime
+ a->tms_stime
+ a->tms_cutime
+ a->tms_cstime;
clock_t bb = b->tms_utime
+ b->tms_stime
+ b->tms_cutime
+ b->tms_cstime;
return (aa-bb)/(double)sysconf(_SC_CLK_TCK);
}
#else // ! defined(HAVE_TIMES)
// Provide dummies
struct tms { int x; };
inline static void times(struct tms *) { }
inline static double cycles_diff(struct tms *a, struct tms *b) { return 0; }
#endif // ! defined(HAVE_TIMES)
int main(int argc, char*argv[])
{
bool help_flag = false;
bool verbose_flag = false;
bool times_flag = false;
const char* net_path = 0;
const char* pf_path = 0;
const char* warn_en = "";
int opt;
unsigned flag_errors = 0;
queue<net_func> net_func_queue;
struct tms cycles[5];
flags["VPI_MODULE_LIST"] = "system";
flags["-o"] = "a.out";
min_typ_max_flag = TYP;
min_typ_max_warn = 10;
while ((opt = getopt(argc, argv, "F:f:hm:N:o:P:p:s:T:t:VvW:")) != EOF) switch (opt) {
case 'F': {
net_func tmp = name_to_net_func(optarg);
if (tmp == 0) {
cerr << "No such design transform function ``"
<< optarg << "''." << endl;
flag_errors += 1;
break;
}
net_func_queue.push(tmp);
break;
}
case 'f':
parm_to_flagmap(optarg);
break;
case 'h':
help_flag = true;
break;
case 'm':
flags["VPI_MODULE_LIST"] = flags["VPI_MODULE_LIST"]+","+optarg;
break;
case 'N':
net_path = optarg;
break;
case 'o':
flags["-o"] = optarg;
break;
case 'P':
pf_path = optarg;
break;
case 'p':
parm_to_flagmap(optarg);
break;
case 's':
start_module = optarg;
break;
case 'T':
if (strcmp(optarg,"min") == 0) {
min_typ_max_flag = MIN;
min_typ_max_warn = 0;
} else if (strcmp(optarg,"typ") == 0) {
min_typ_max_flag = TYP;
min_typ_max_warn = 0;
} else if (strcmp(optarg,"max") == 0) {
min_typ_max_flag = MAX;
min_typ_max_warn = 0;
} else {
cerr << "Invalid argument (" << optarg << ") to -T flag."
<< endl;
flag_errors += 1;
}
break;
case 't':
target = optarg;
break;
case 'v':
verbose_flag = true;
# if defined(HAVE_TIMES)
times_flag = true;
# endif
break;
case 'V':
cout << "Icarus Verilog version " << VERSION << endl;
cout << COPYRIGHT << endl;
cout << endl << NOTICE << endl;
return 0;
case 'W':
warn_en = optarg;
break;
default:
flag_errors += 1;
break;
}
if (flag_errors)
return flag_errors;
if (help_flag) {
cout << "Icarus Verilog version " << VERSION << endl <<
"usage: ivl <options> <file>\n"
"options:\n"
"\t-F <name> Apply netlist function <name>.\n"
"\t-h Print usage information, and exit.\n"
"\t-m <module> Load vpi module <module>.\n"
"\t-N <file> Dump the elaborated netlist to <file>.\n"
"\t-o <file> Write output to <file>.\n"
"\t-P <file> Write the parsed input to <file>.\n"
"\t-p <assign> Set a parameter value.\n"
"\t-s <module> Select the top-level module.\n"
"\t-T [min|typ|max] Select timing corner.\n"
"\t-t <name> Select target <name>.\n"
"\t-v Print progress indications"
#if defined(HAVE_TIMES)
" and execution times"
#endif
".\n"
"\t-V Print version and copyright information, and exit.\n"
;
cout << "Netlist functions:" << endl;
for (unsigned idx = 0 ; func_table[idx].name ; idx += 1)
cout << "\t-F " << func_table[idx].name << endl;
cout << "Target types:" << endl;
for (unsigned idx = 0 ; target_table[idx] ; idx += 1)
cout << "\t-t " << target_table[idx]->name << endl;
return 0;
}
if (optind == argc) {
cerr << "No input files." << endl;
return 1;
}
/* Scan the warnings enable string for warning flags. */
for (const char*cp = warn_en ; *cp ; cp += 1) switch (*cp) {
case 'i':
warn_implicit = true;
break;
default:
break;
}
if (verbose_flag) {
if (times_flag)
times(cycles+0);
cout << "PARSING INPUT ..." << endl;
}
/* Parse the input. Make the pform. */
map<string,Module*> modules;
map<string,PUdp*> primitives;
int rc = pform_parse(argv[optind], modules, primitives);
if (pf_path) {
ofstream out (pf_path);
out << "PFORM DUMP MODULES:" << endl;
for (map<string,Module*>::iterator mod = modules.begin()
; mod != modules.end()
; mod ++ ) {
pform_dump(out, (*mod).second);
}
out << "PFORM DUMP PRIMITIVES:" << endl;
for (map<string,PUdp*>::iterator idx = primitives.begin()
; idx != primitives.end()
; idx ++ ) {
(*idx).second->dump(out);
}
}
if (rc) {
return rc;
}
/* If the user did not give a specific module to start with,
then look for the single module that has no ports. If there
are multiple modules with no ports, then give up. */
if (start_module == "") {
for (map<string,Module*>::iterator mod = modules.begin()
; mod != modules.end()
; mod ++ ) {
Module*cur = (*mod).second;
if (cur->port_count() == 0)
if (start_module == "") {
start_module = cur->get_name();
} else {
cerr << "More then 1 top level module."
<< endl;
return 1;
}
}
}
/* If the previous attempt to find a start module failed, but
there is only one module, then just let the user get away
with it. */
if ((start_module == "") && (modules.size() == 1)) {
map<string,Module*>::iterator mod = modules.begin();
Module*cur = (*mod).second;
start_module = cur->get_name();
}
/* If there is *still* no guess for the root module, then give
up completely, and complain. */
if (start_module == "") {
cerr << "No top level modules, and no -s option." << endl;
return 1;
}
if (verbose_flag) {
if (times_flag) {
times(cycles+1);
cerr<<" ... done, "
<<cycles_diff(cycles+1, cycles+0)<<" seconds."<<endl;
}
cout << "ELABORATING DESIGN -s "<<start_module<<" ..." << endl;
}
/* On with the process of elaborating the module. */
Design*des = elaborate(modules, primitives, start_module);
if (des == 0) {
cerr << start_module << ": error: "
<< "Unable to elaborate module." << endl;
return 1;
}
if (des->errors) {
cerr << start_module << ": error: " << des->errors
<< " elaborating module." << endl;
return des->errors;
}
des->set_flags(flags);
if (verbose_flag) {
if (times_flag) {
times(cycles+2);
cerr<<" ... done, "
<<cycles_diff(cycles+2, cycles+1)<<" seconds."<<endl;
}
cout << "RUNNING FUNCTORS ..." << endl;
}
while (!net_func_queue.empty()) {
net_func func = net_func_queue.front();
net_func_queue.pop();
if (verbose_flag)
cerr<<" -F "<<net_func_to_name(func)<<endl;
func(des);
}
if (net_path) {
ofstream out (net_path);
des->dump(out);
}
if (verbose_flag) {
if (times_flag) {
times(cycles+3);
cerr<<" ... done, "
<<cycles_diff(cycles+3, cycles+2)<<" seconds."<<endl;
}
cout << "CODE GENERATION -t "<<target<<" ..." << endl;
}
bool emit_rc = emit(des, target);
if (!emit_rc) {
cerr << "error: Code generation had errors." << endl;
return 1;
}
if (verbose_flag) {
if (times_flag) {
times(cycles+4);
cerr<<" ... done, "
<<cycles_diff(cycles+4, cycles+3)<<" seconds."<<endl;
} else
cout << "DONE." << endl;
}
return 0;
}
/*
* $Log: main.cc,v $
* Revision 1.45 2001/07/16 18:14:56 steve
* Reshuffle -v and -V flags of ivl. (Stephan Boettcher)
*
* Revision 1.44 2001/07/03 04:09:24 steve
* Generate verbuse status messages (Stephan Boettcher)
*
* Revision 1.43 2001/07/02 01:57:27 steve
* Add the -V flag, and some verbose messages.
*
* Revision 1.42 2001/06/23 18:41:02 steve
* Include stdlib.h
*
* Revision 1.41 2001/05/20 17:35:05 steve
* declare getopt by hand in mingw32 compile.
*
* Revision 1.40 2001/01/20 19:02:05 steve
* Switch hte -f flag to the -p flag.
*
* Revision 1.39 2000/11/22 20:48:32 steve
* Allow sole module to be a root.
*
* Revision 1.38 2000/09/12 01:17:40 steve
* Version information for vlog_vpi_info.
*
* Revision 1.37 2000/08/09 03:43:45 steve
* Move all file manipulation out of target class.
*
* Revision 1.36 2000/07/29 17:58:21 steve
* Introduce min:typ:max support.
*
* Revision 1.35 2000/07/14 06:12:57 steve
* Move inital value handling from NetNet to Nexus
* objects. This allows better propogation of inital
* values.
*
* Clean up constant propagation a bit to account
* for regs that are not really values.
*
* Revision 1.34 2000/05/13 20:55:47 steve
* Use yacc based synthesizer.
*
* Revision 1.33 2000/05/08 05:29:43 steve
* no need for nobufz functor.
*
* Revision 1.32 2000/05/03 22:14:31 steve
* More features of ivl available through iverilog.
*
* Revision 1.31 2000/04/12 20:02:53 steve
* Finally remove the NetNEvent and NetPEvent classes,
* Get synthesis working with the NetEvWait class,
* and get started supporting multiple events in a
* wait in vvm.
*/
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