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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*
* escmain.c -- main routine for esc, the eversholt compiler
*
* argument processing and the general flow through all the other
* modules is driven by this file.
*/
#include <stdio.h>
#include <string.h>
#ifdef sun
#include <stdlib.h>
#else
#include <getopt.h>
#endif /* sun */
#include "out.h"
#include "stats.h"
#include "alloc.h"
#include "stable.h"
#include "literals.h"
#include "lut.h"
#include "esclex.h"
#include "eftwrite.h"
#include "ptree.h"
#include "tree.h"
#include "check.h"
#include "version.h"
/* stuff exported by yacc-generated parsers */
extern void yyparse(void);
extern int yydebug;
/*
* This external definition has to be here. If we put it in literals.h
* lint complains about the declaration not being used within the block
* when compiling literals.c.
*/
extern void literals_init(void);
static const char *Usage =
"[-SYdghpqvy] [-Dname[=def]] [-I dir] [-Uname] [-o outfile] esc-files...";
static const char *Help =
"\tinput files are run through cpp and concatenated.\n"
"\t-D name[=def] Pass to cpp\n"
"\t-I dir Pass to cpp\n"
"\t-S Print stats for compiler memory usage, etc.\n"
"\t-U name Pass to cpp\n"
"\t-Y Enable parser debug output\n"
"\t-d Enable general debug output\n"
"\t-g Print generated iterators (use with -p)\n"
"\t-h Print this help message\n"
"\t-o outfile Emit compiled EFT to \"outfile\"\n"
"\t-p Print complete parse tree\n"
"\t-q Quiet mode: suppress warnings\n"
"\t-v Enable verbose output\n"
"\t-y Enable lexer debug output";
int Debug;
int Verbose;
int Warn = 1; /* the esc compiler should issue language warnings */
extern int Pchildgen; /* flag to ptree for printing generated iterators */
#define MAXARGS 8192
char Args[MAXARGS];
#define MAXCPPARGS 4000
static char Cppargs[MAXCPPARGS];
int
main(int argc, char *argv[])
{
char flagbuf[] = " -D";
char **av;
int c;
int stats = 0;
int lexecho = 0;
const char *outfile = NULL;
int count;
int i;
int pflag = 0;
alloc_init();
out_init(argv[0]);
stats_init(1); /* extended stats always enabled for esc */
stable_init(0);
literals_init();
lut_init();
tree_init();
eftwrite_init();
/* built a best effort summary of args for eftwrite() */
count = 0;
for (i = 1; i < argc; i++) {
char *ptr = argv[i];
if (count < MAXARGS - 1)
Args[count++] = ' ';
while (count < MAXARGS - 1 && *ptr)
Args[count++] = *ptr++;
}
Args[count] = '\0';
while ((c = getopt(argc, argv, "D:I:SU:Ydgho:pqvy")) != EOF) {
switch (c) {
case 'D':
case 'I':
case 'U':
if (strlen(optarg) + strlen(Cppargs) + 4 >= MAXCPPARGS)
out(O_DIE, "cpp args too long (max %d bytes)",
MAXCPPARGS);
flagbuf[2] = c;
(void) strcat(Cppargs, flagbuf);
(void) strcat(Cppargs, optarg);
break;
case 'S':
stats++;
break;
case 'Y':
yydebug++;
break;
case 'd':
Debug++;
break;
case 'g':
Pchildgen++;
break;
case 'h':
case '?':
out(O_PROG, "eversholt compiler version %d.%d",
VERSION_MAJOR, VERSION_MINOR);
out(O_DIE|O_USAGE, "%s\n%s", Usage, Help);
/*NOTREACHED*/
break;
case 'o':
outfile = optarg;
break;
case 'p':
pflag++;
break;
case 'q':
Warn = 0;
break;
case 'v':
Verbose++;
break;
case 'y':
lexecho++;
break;
default:
out(O_DIE|O_USAGE, Usage);
/*NOTREACHED*/
}
}
out(O_PROG|O_VERB, "eversholt compiler version %d.%d",
VERSION_MAJOR, VERSION_MINOR);
argc -= optind;
av = &argv[optind];
if (argc < 1) {
out(O_ERR, "no esc source files given");
out(O_DIE|O_USAGE, Usage);
/*NOTREACHED*/
}
lex_init(av, Cppargs, lexecho);
check_init();
yyparse();
(void) lex_fini();
tree_report();
if (count = out_errcount())
out(O_DIE, "%d language error%s encountered, exiting.",
OUTS(count));
if (outfile)
eftwrite(outfile);
if (pflag)
ptree_name_iter(O_OK, tree_root(NULL));
if (stats) {
out(O_OK, "Stats:");
stats_publish();
}
out_exit(0);
/*NOTREACHED*/
return (0);
}
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