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main.cc
836 lines (720 loc) · 20.6 KB
/
main.cc
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const char COPYRIGHT[] =
"Copyright (c) 1998-2004 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
*/
#ifdef HAVE_CVS_IDENT
#ident "$Id: main.cc,v 1.86.2.3 2006/06/12 00:16:53 steve Exp $"
#endif
# include "config.h"
const char NOTICE[] =
" This program is free software; you can redistribute it and/or modify\n"
" it under the terms of the GNU General Public License as published by\n"
" the Free Software Foundation; either version 2 of the License, or\n"
" (at your option) any later version.\n"
"\n"
" This program is distributed in the hope that it will be useful,\n"
" but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
" GNU General Public License for more details.\n"
"\n"
" You should have received a copy of the GNU General Public License\n"
" along with this program; if not, write to the Free Software\n"
" Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA\n"
;
# include <stdio.h>
# include <iostream>
# include <fstream>
# include <queue>
# include <list>
# include <map>
# include <unistd.h>
# include <stdlib.h>
#if defined(HAVE_TIMES)
# include <sys/times.h>
#endif
#if defined(HAVE_GETOPT_H)
# include <getopt.h>
#endif
# include "pform.h"
# include "parse_api.h"
# include "netlist.h"
# include "target.h"
# include "compiler.h"
#if defined(__MINGW32__) && !defined(HAVE_GETOPT_H)
extern "C" int getopt(int argc, char*argv[], const char*fmt);
extern "C" int optind;
extern "C" const char*optarg;
#endif
#if defined(__CYGWIN32__) && !defined(HAVE_GETOPT_H)
extern "C" int getopt(int argc, char*argv[], const char*fmt);
extern "C" int optind;
extern "C" const char*optarg;
#endif
/* Count errors detected in flag processing. */
unsigned flag_errors = 0;
const char VERSION[] = "$Name: $";
const char*basedir = ".";
const char*target = "null";
generation_t generation_flag = GN_DEFAULT;
map<string,const char*> flags;
char*vpi_module_list = 0;
map<perm_string,unsigned> missing_modules;
list<const char*> library_suff;
list<perm_string> roots;
char*ivlpp_string = 0;
char* depfile_name = NULL;
FILE *depend_file = NULL;
/*
* These are the warning enable flags.
*/
bool warn_implicit = false;
bool warn_timescale = false;
bool warn_portbinding = false;
bool warn_unused = false;
bool error_implicit = false;
/*
* Debug message class flags.
*/
bool debug_scopes = false;
bool debug_eval_tree = false;
bool debug_elaborate = false;
bool debug_synth = false;
bool debug_cprop = false;
/*
* Verbose messages enabled.
*/
bool verbose_flag = false;
/*
* Keep a heap of identifier strings that I encounter. This is a more
* efficient way to allocate those strings.
*/
StringHeapLex lex_strings;
/*
* In library searches, Windows file names are never case sensitive.
*/
#if defined(__MINGW32__)
const bool CASE_SENSITIVE = false;
#else
const bool CASE_SENSITIVE = true;
#endif
extern void cprop(Design*des);
extern void synth(Design*des);
extern void synth2(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 },
{ "synth2", &synth2 },
{ "syn-rules", &syn_rules },
{ "xnfio", &xnfio },
{ 0, 0 }
};
queue<net_func> net_func_queue;
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";
}
static void process_generation_flag(const char*gen)
{
if (strcmp(gen,"1") == 0)
generation_flag = GN_VER1995;
else if (strcmp(gen,"2") == 0)
generation_flag = GN_VER2001;
else if (strcmp(gen,"3.0") == 0)
generation_flag = GN_SYSVER30;
else
generation_flag = GN_DEFAULT;
}
static void parm_to_flagmap(const string&flag)
{
string key;
const char*value;
unsigned off = flag.find('=');
if (off > flag.size()) {
key = flag;
value = "";
} else {
key = flag.substr(0, off);
value = strdup(flag.substr(off+1).c_str());
}
flags[key] = value;
}
/*
* Read the contents of a config file. This file is a temporary
* configuration file made by the compiler driver to carry the bulky
* flags generated from the user. This reduces the size of the command
* line needed to invoke ivl.
*
* Each line of the iconfig file has the format:
*
* <keyword>:<value>
*
* The <value> is all the text after the ':' and up to but not
* including the end of the line. Thus, white spaces and ':'
* characters may appear here.
*
* The valid keys are:
*
* -y:<dir>
* -yl:<dir>
* -Y:<string>
*
* -T:<min/typ/max>
* Select which expression to use.
*
* -t:<target>
* Usually, "-t:dll"
*
* basedir:<path>
* Location to look for installed sub-components
*
* debug:<name>
* Activate a class of debug messages.
*
* depfile:<path>
* Give the path to an output dependency file.
*
* flag:<name>=<string>
* Generic compiler flag strings.
*
* functor:<name>
* Append a named functor to the processing path.
*
* generation:<1|2|3.0>
* This is the generation flag
*
* ivlpp:<preprocessor command>
* This specifies the ivlpp command line used to process
* library modules as I read them in.
*
* module:<name>
* Load a VPI module.
*
* out:<path>
* Path to the output file.
*
* sys_func:<path>
* Path to a system functions descriptor table
*
* root:<name>
* Specify a root module. There may be multiple of this.
*
* warnings:<string>
* Warning flag letters.
*/
static void read_iconfig_file(const char*ipath)
{
char buf[8*1024];
FILE*ifile = fopen(ipath, "r");
if (ifile == 0) {
cerr << "ERROR: Unable to read config file: " << ipath << endl;
return;
}
while (fgets(buf, sizeof buf, ifile) != 0) {
if (buf[0] == '#')
continue;
char*cp = strchr(buf, ':');
if (cp == 0)
continue;
*cp++ = 0;
char*ep = cp + strlen(cp);
while (ep > cp) {
ep -= 1;
switch (*ep) {
case '\r':
case '\n':
case ' ':
case '\t':
*ep = 0;
break;
default:
ep = cp;
}
}
if (strcmp(buf, "basedir") == 0) {
basedir = strdup(cp);
} else if (strcmp(buf, "debug") == 0) {
if (strcmp(cp, "scope") == 0) {
debug_scopes = true;
cerr << "debug: Enable scope debug" << endl;
} else if (strcmp(cp,"eval_tree") == 0) {
debug_eval_tree = true;
cerr << "debug: Enable eval_tree debug" << endl;
} else if (strcmp(cp,"elaborate") == 0) {
debug_elaborate = true;
cerr << "debug: Enable elaborate debug" << endl;
} else if (strcmp(cp,"synth") == 0) {
debug_synth = true;
cerr << "debug: Enable synthesis debug" << endl;
} else if (strcmp(cp,"cprop") == 0) {
debug_cprop = true;
cerr << "debug: Enable cprop debug" << endl;
} else {
}
} else if (strcmp(buf, "depfile") == 0) {
depfile_name = strdup(cp);
} else if (strcmp(buf, "flag") == 0) {
string parm = cp;
parm_to_flagmap(parm);
} else if (strcmp(buf,"functor") == 0) {
net_func tmp = name_to_net_func(cp);
if (tmp == 0) {
cerr << "No such design transform function ``"
<< cp << "''." << endl;
flag_errors += 1;
break;
}
net_func_queue.push(tmp);
} else if (strcmp(buf, "generation") == 0) {
process_generation_flag(cp);
} else if (strcmp(buf, "ivlpp") == 0) {
ivlpp_string = strdup(cp);
} else if (strcmp(buf,"module") == 0) {
if (vpi_module_list == 0) {
vpi_module_list = strdup(cp);
} else {
char*tmp = (char*)realloc(vpi_module_list,
strlen(vpi_module_list)
+ strlen(cp)
+ 2);
strcat(tmp, ",");
strcat(tmp, cp);
vpi_module_list = tmp;
}
flags["VPI_MODULE_LIST"] = vpi_module_list;
} else if (strcmp(buf, "out") == 0) {
flags["-o"] = strdup(cp);
} else if (strcmp(buf, "sys_func") == 0) {
load_sys_func_table(cp);
} else if (strcmp(buf, "root") == 0) {
roots.push_back(lex_strings.make(cp));
} else if (strcmp(buf,"warnings") == 0) {
/* Scan the warnings enable string for warning flags. */
for ( ; *cp ; cp += 1) switch (*cp) {
case 'i':
warn_implicit = true;
break;
case 'p':
warn_portbinding = true;
break;
case 't':
warn_timescale = true;
break;
case 'u':
warn_unused = true;
break;
default:
break;
}
} else if (strcmp(buf, "-y") == 0) {
build_library_index(cp, CASE_SENSITIVE);
} else if (strcmp(buf, "-yl") == 0) {
build_library_index(cp, false);
} else if (strcmp(buf, "-Y") == 0) {
library_suff.push_back(strdup(cp));
} else if (strcmp(buf,"-t") == 0) {
target = strdup(cp);
} else if (strcmp(buf,"-T") == 0) {
if (strcmp(cp,"min") == 0) {
min_typ_max_flag = MIN;
min_typ_max_warn = 0;
} else if (strcmp(cp,"typ") == 0) {
min_typ_max_flag = TYP;
min_typ_max_warn = 0;
} else if (strcmp(cp,"max") == 0) {
min_typ_max_flag = MAX;
min_typ_max_warn = 0;
} else {
cerr << "Invalid argument (" << optarg << ") to -T flag."
<< endl;
flag_errors += 1;
}
}
}
}
extern Design* elaborate(list <perm_string> root);
#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 times_flag = false;
const char* net_path = 0;
const char* pf_path = 0;
int opt;
struct tms cycles[5];
library_suff.push_back(".v");
vpi_module_list = strdup("system");
flags["VPI_MODULE_LIST"] = vpi_module_list;
flags["-o"] = "a.out";
min_typ_max_flag = TYP;
min_typ_max_warn = 10;
while ((opt = getopt(argc, argv, "C:f:hN:P:p:Vv")) != EOF) switch (opt) {
case 'C':
read_iconfig_file(optarg);
break;
case 'f':
parm_to_flagmap(optarg);
break;
case 'h':
help_flag = true;
break;
case 'N':
net_path = optarg;
break;
case 'P':
pf_path = optarg;
break;
case 'p':
parm_to_flagmap(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;
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-C <name> Config file from driver.\n"
"\t-h Print usage information, and exit.\n"
"\t-N <file> Dump the elaborated netlist to <file>.\n"
"\t-P <file> Write the parsed input to <file>.\n"
"\t-p <assign> Set a parameter value.\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"
;
return 0;
}
if (optind == argc) {
cerr << "No input files." << endl;
return 1;
}
if( depfile_name ) {
depend_file = fopen(depfile_name, "a");
if(! depend_file) {
perror(depfile_name);
}
}
if (verbose_flag) {
if (times_flag)
times(cycles+0);
cout << "Using language generation: ";
switch (generation_flag) {
case GN_VER1995:
cout << "IEEE1364-1995";
break;
case GN_VER2001:
cout << "IEEE1364-2001";
break;
case GN_SYSVER30:
cout << "SystemVerilog 3.0";
break;
}
cout << endl << "PARSING INPUT" << endl;
}
/* Parse the input. Make the pform. */
int rc = pform_parse(argv[optind]);
if (pf_path) {
ofstream out (pf_path);
out << "PFORM DUMP MODULES:" << endl;
for (map<perm_string,Module*>::iterator mod = pform_modules.begin()
; mod != pform_modules.end()
; mod ++ ) {
pform_dump(out, (*mod).second);
}
out << "PFORM DUMP PRIMITIVES:" << endl;
for (map<perm_string,PUdp*>::iterator idx = pform_primitives.begin()
; idx != pform_primitives.end()
; idx ++ ) {
(*idx).second->dump(out);
}
}
if (rc) {
return rc;
}
/* If the user did not give specific module(s) to start with,
then look for modules that are not instantiated anywhere. */
if (roots.empty()) {
map<perm_string,bool> mentioned_p;
map<perm_string,Module*>::iterator mod;
if (verbose_flag)
cout << "LOCATING TOP-LEVEL MODULES" << endl << " ";
for (mod = pform_modules.begin()
; mod != pform_modules.end()
; mod++) {
list<PGate*> gates = (*mod).second->get_gates();
list<PGate*>::const_iterator gate;
for (gate = gates.begin(); gate != gates.end(); gate++) {
PGModule *mod = dynamic_cast<PGModule*>(*gate);
if (mod) {
// Note that this module has been instantiated
mentioned_p[mod->get_type()] = true;
}
}
}
for (mod = pform_modules.begin()
; mod != pform_modules.end()
; mod++) {
if (mentioned_p[(*mod).second->mod_name()] == false) {
if (verbose_flag)
cout << " " << (*mod).second->mod_name();
roots.push_back((*mod).second->mod_name());
}
}
if (verbose_flag)
cout << endl;
}
/* If there is *still* no guess for the root module, then give
up completely, and complain. */
if (roots.empty()) {
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" << endl;
}
/* On with the process of elaborating the module. */
Design*des = elaborate(roots);
if ((des == 0) || (des->errors > 0)) {
if (des != 0) {
cerr << des->errors
<< " error(s) during elaboration." << endl;
if (net_path) {
ofstream out (net_path);
des->dump(out);
}
} else {
cerr << "Elaboration failed" << endl;
}
goto errors_summary;
}
des->set_flags(flags);
/* Done iwth all the pform data. Delete the modules. */
for (map<perm_string,Module*>::iterator idx = pform_modules.begin()
; idx != pform_modules.end() ; idx ++) {
delete (*idx).second;
(*idx).second = 0;
}
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) {
if (verbose_flag)
cerr<<" dumping netlist to " <<net_path<< "..." <<endl;
ofstream out (net_path);
des->dump(out);
}
if (des->errors) {
cerr << des->errors
<< " error(s) in post-elaboration processing." <<
endl;
return des->errors;
}
if (verbose_flag) {
if (times_flag) {
times(cycles+3);
cerr<<" ... done, "
<<cycles_diff(cycles+3, cycles+2)<<" seconds."<<endl;
}
}
if (verbose_flag) {
cout << "CODE GENERATION -t "<<target<< endl;
}
bool emit_rc;
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;
}
}
if (verbose_flag) {
cout << "STATISTICS" << endl;
cout << "lex_string:"
<< " add_count=" << lex_strings.add_count()
<< " hit_count=" << lex_strings.add_hit_count()
<< endl;
}
return 0;
errors_summary:
if (missing_modules.size() > 0) {
cerr << "*** These modules were missing:" << endl;
map<perm_string,unsigned>::const_iterator idx;
for (idx = missing_modules.begin()
; idx != missing_modules.end()
; idx ++)
cerr << " " << (*idx).first
<< " referenced " << (*idx).second
<< " times."<< endl;
cerr << "***" << endl;
}
return des? des->errors : 1;
}
/*
* $Log: main.cc,v $
* Revision 1.86.2.3 2006/06/12 00:16:53 steve
* Add support for -Wunused warnings.
*
* Revision 1.86.2.2 2006/04/23 04:25:45 steve
* Add cprop debugging.
*
* Revision 1.86.2.1 2006/04/01 01:37:24 steve
* Add synth debug flag
*
* Revision 1.86 2004/10/04 01:10:53 steve
* Clean up spurious trailing white space.
*
* Revision 1.85 2004/09/25 01:58:44 steve
* Add a debug_elaborate flag
*
* Revision 1.84 2004/09/10 23:51:42 steve
* Fix the evaluation of constant ternary expressions.
*
* Revision 1.83 2004/09/05 17:44:42 steve
* Add support for module instance arrays.
*
* Revision 1.82 2004/03/10 04:51:24 steve
* Add support for system function table files.
*
* Revision 1.81 2004/02/18 17:11:56 steve
* Use perm_strings for named langiage items.
*
* Revision 1.80 2004/02/15 00:19:29 steve
* Report elaboration errors without crashing.
*
* Revision 1.79 2003/11/26 01:37:14 steve
* Properly initialize vpi_module_list with system.
*
* Revision 1.78 2003/11/13 05:55:33 steve
* Move the DLL= flag to target config files.
*
* Revision 1.77 2003/11/13 04:09:49 steve
* Pass flags through the temporary config file.
*
* Revision 1.76 2003/11/13 03:10:38 steve
* ivl -F and -t flags are onpassed throught the -C file.
*
* Revision 1.75 2003/11/10 20:59:03 steve
* Design::get_flag returns const char* instead of string.
*
* Revision 1.74 2003/11/01 04:22:30 steve
* Accept functors in the config file.
*
* Revision 1.73 2003/10/26 22:43:42 steve
* Improve -V messages,
*
* Revision 1.72 2003/09/26 02:17:14 steve
* Delete pform when done with it.
*
* Revision 1.71 2003/09/25 00:25:14 steve
* Summary list of missing modules.
*
* Revision 1.70 2003/09/23 05:57:36 steve
* Pass -m flag from driver via iconfig file.
*
* Revision 1.69 2003/09/22 01:12:08 steve
* Pass more ivl arguments through the iconfig file.
*
* Revision 1.68 2003/06/20 00:53:19 steve
* Module attributes from the parser
* through to elaborated form.
*
* Revision 1.67 2003/04/24 05:25:27 steve
* Dump design even on errors.
*
* Revision 1.66 2003/03/01 06:25:30 steve
* Add the lex_strings string handler, and put
* scope names and system task/function names
* into this table. Also, permallocate event
* names from the beginning.
*/