/* Top level entry point of bison,
- Copyright (C) 1984, 1986, 1989, 1992, 1995, 2000 Free Software Foundation, Inc.
+ Copyright 1984, 1986, 1989, 1992, 1995, 2000, 2001, 2002
+ Free Software Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
Boston, MA 02111-1307, USA. */
-#include <stdio.h>
#include "system.h"
-#include "machine.h" /* for MAXSHORT */
+#include "bitset_stats.h"
+#include "bitset.h"
+#include "getargs.h"
+#include "symtab.h"
+#include "gram.h"
#include "files.h"
#include "complain.h"
-
-extern int verboseflag;
-
-/* Nonzero means failure has been detected; don't write a parser file. */
-int failure;
+#include "derives.h"
+#include "output.h"
+#include "reader.h"
+#include "lalr.h"
+#include "reduce.h"
+#include "nullable.h"
+#include "print.h"
+#include "LR0.h"
+#include "conflicts.h"
+#include "print_graph.h"
+#include "muscle_tab.h"
+#include <malloc.h>
+#include <sys/times.h>
/* The name this program was run with, for messages. */
char *program_name;
-char *printable_version PARAMS((int));
-void toomany PARAMS((char *));
-void berror PARAMS((char *));
-
-extern void getargs PARAMS((int, char *[]));
-extern void openfiles PARAMS((void));
-extern void reader PARAMS((void));
-extern void reduce_grammar PARAMS((void));
-extern void set_derives PARAMS((void));
-extern void set_nullable PARAMS((void));
-extern void generate_states PARAMS((void));
-extern void lalr PARAMS((void));
-extern void initialize_conflicts PARAMS((void));
-extern void verbose PARAMS((void));
-extern void terse PARAMS((void));
-extern void output PARAMS((void));
-
-
-/* VMS complained about using `int'. */
+static void
+stage (const char *title)
+{
+ struct mallinfo minfo = mallinfo ();
+ struct tms tinfo;
+ times (&tinfo);
+ fprintf (stderr, "STAGE: %30s: %9d (%9d): %ldu %lds\n",
+ title,
+ minfo.uordblks, minfo.arena,
+ tinfo.tms_utime, tinfo.tms_stime);
+}
int
main (int argc, char *argv[])
bindtextdomain (PACKAGE, LOCALEDIR);
textdomain (PACKAGE);
- lineno = 0;
- getargs(argc, argv);
+ getargs (argc, argv);
- /* Be ready to clean up if we exit.*/
- atexit (done);
+ if (trace_flag)
+ bitset_stats_enable ();
- openfiles();
+ muscle_init ();
- /* read the input. Copy some parts of it to fguard, faction, ftable and fattrs.
- In file reader.c.
- The other parts are recorded in the grammar; see gram.h. */
+ stage ("initialized muscles");
+
+ /* Read the input. Copy some parts of it to FGUARD, FACTION, FTABLE
+ and FATTRS. In file reader.c. The other parts are recorded in
+ the grammar; see gram.h. */
reader ();
+
+ stage ("reader");
+
if (complain_message_count)
exit (1);
- /* find useless nonterminals and productions and reduce the grammar. In
- file reduce.c */
- reduce_grammar();
+ /* Find useless nonterminals and productions and reduce the grammar. */
+ reduce_grammar ();
- /* record other info about the grammar. In files derives and nullable. */
- set_derives();
- set_nullable();
+ stage ("reduced grammar");
- /* convert to nondeterministic finite state machine. In file LR0.
+ /* Record other info about the grammar. In files derives and
+ nullable. */
+ set_derives ();
+ set_nullable ();
+
+ /* Convert to nondeterministic finite state machine. In file LR0.
See state.h for more info. */
- generate_states();
+ generate_states ();
+ stage ("generated states");
/* make it deterministic. In file lalr. */
- lalr();
-
- /* Find and record any conflicts: places where one token of lookahead is not
- enough to disambiguate the parsing. In file conflicts.
- Also resolve s/r conflicts based on precedence declarations. */
- initialize_conflicts();
-
- /* print information about results, if requested. In file print. */
- if (verboseflag)
- verbose();
- else
- terse();
-
- /* output the tables and the parser to ftable. In file output. */
- output();
-
- exit (complain_message_count ? 1 : 0);
-}
-\f
-/* functions to report errors which prevent a parser from being generated */
-
-
-/* Return a string containing a printable version of C:
- either C itself, or the corresponding \DDD code. */
-
-char *
-printable_version (int c)
-{
- static char buf[10];
- if (c < ' ' || c >= '\177')
- sprintf(buf, "\\%o", c);
- else
- {
- buf[0] = c;
- buf[1] = '\0';
- }
- return buf;
-}
-
-/* Abort for an internal error denoted by string S. */
+ lalr ();
+
+ stage ("lalred");
+ /* Find and record any conflicts: places where one token of
+ lookahead is not enough to disambiguate the parsing. In file
+ conflicts. Also resolve s/r conflicts based on precedence
+ declarations. */
+ conflicts_solve ();
+ conflicts_print ();
+
+ stage ("solved conflicts");
+ /* Output file names. */
+ compute_output_file_names ();
+
+ /* Output the detailed report on the grammar. */
+ if (report_flag)
+ print_results ();
+
+ stage ("printed results");
+ /* Stop if there were errors, to avoid trashing previous output
+ files. */
+ if (complain_message_count)
+ exit (1);
-void
-berror (char *s)
-{
- fprintf (stderr, _("%s: internal error: %s\n"), program_name, s);
- abort();
+ /* Output the VCG graph. */
+ if (graph_flag)
+ print_graph ();
+
+ /* Output the tables and the parser to ftable. In file output. */
+ output ();
+ stage ("made output");
+
+ states_free ();
+ stage ("freed states");
+ reduce_free ();
+ stage ("freed reduce");
+ conflicts_free ();
+ stage ("freed conflicts");
+ free_nullable ();
+ stage ("freed nullable");
+ free_derives ();
+ stage ("freed derives");
+ grammar_free ();
+ stage ("freed grammar");
+
+ /* The scanner memory cannot be released right after parsing, as it
+ contains things such as user actions, prologue, epilogue etc. */
+ scanner_free ();
+ stage ("freed scanner");
+ muscle_free ();
+ stage ("freed muscles");
+ /* If using alloca.c, flush the alloca'ed memory for the benefit of
+ people running Bison as a library in IDEs. */
+#if C_ALLOCA
+ alloca (0);
+#endif
+
+ if (trace_flag)
+ bitset_stats_dump (stderr);
+
+ return complain_message_count ? EXIT_FAILURE : EXIT_SUCCESS;
}
projects / bison.git / blobdiff