mirror of
https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
synced 2024-12-30 23:48:09 +01:00
9f36c7f497
In case you're wondering, the gcc-2.7.2.1 import uses this to generate code. The size of the generated code is bigger than the entire bison release, making this a saving. The bison doc is pretty good apparently.
415 lines
10 KiB
C
415 lines
10 KiB
C
/* Open and close files for bison,
|
||
Copyright (C) 1984, 1986, 1989, 1992 Free Software Foundation, Inc.
|
||
|
||
This file is part of Bison, the GNU Compiler Compiler.
|
||
|
||
Bison is free software; you can redistribute it and/or modify
|
||
it under the terms of the GNU General Public License as published by
|
||
the Free Software Foundation; either version 2, or (at your option)
|
||
any later version.
|
||
|
||
Bison 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 Bison; see the file COPYING. If not, write to
|
||
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
|
||
|
||
|
||
#if defined (VMS) & !defined (__VMS_POSIX)
|
||
#include <ssdef.h>
|
||
#define unlink delete
|
||
#ifndef XPFILE
|
||
#define XPFILE "GNU_BISON:[000000]BISON.SIMPLE"
|
||
#endif
|
||
#ifndef XPFILE1
|
||
#define XPFILE1 "GNU_BISON:[000000]BISON.HAIRY"
|
||
#endif
|
||
#endif
|
||
|
||
#include <stdio.h>
|
||
#include "system.h"
|
||
#include "files.h"
|
||
#include "new.h"
|
||
#include "gram.h"
|
||
|
||
FILE *finput = NULL;
|
||
FILE *foutput = NULL;
|
||
FILE *fdefines = NULL;
|
||
FILE *ftable = NULL;
|
||
FILE *fattrs = NULL;
|
||
FILE *fguard = NULL;
|
||
FILE *faction = NULL;
|
||
FILE *fparser = NULL;
|
||
|
||
/* File name specified with -o for the output file, or 0 if no -o. */
|
||
char *spec_outfile;
|
||
|
||
char *infile;
|
||
char *outfile;
|
||
char *defsfile;
|
||
char *tabfile;
|
||
char *attrsfile;
|
||
char *guardfile;
|
||
char *actfile;
|
||
char *tmpattrsfile;
|
||
char *tmptabfile;
|
||
char *tmpdefsfile;
|
||
|
||
extern int noparserflag;
|
||
|
||
extern char *mktemp(); /* So the compiler won't complain */
|
||
extern char *getenv();
|
||
extern void perror();
|
||
FILE *tryopen(); /* This might be a good idea */
|
||
void done();
|
||
|
||
extern char *program_name;
|
||
extern int verboseflag;
|
||
extern int definesflag;
|
||
int fixed_outfiles = 0;
|
||
|
||
|
||
char*
|
||
stringappend(string1, end1, string2)
|
||
char *string1;
|
||
int end1;
|
||
char *string2;
|
||
{
|
||
register char *ostring;
|
||
register char *cp, *cp1;
|
||
register int i;
|
||
|
||
cp = string2; i = 0;
|
||
while (*cp++) i++;
|
||
|
||
ostring = NEW2(i+end1+1, char);
|
||
|
||
cp = ostring;
|
||
cp1 = string1;
|
||
for (i = 0; i < end1; i++)
|
||
*cp++ = *cp1++;
|
||
|
||
cp1 = string2;
|
||
while (*cp++ = *cp1++) ;
|
||
|
||
return ostring;
|
||
}
|
||
|
||
|
||
/* JF this has been hacked to death. Nowaday it sets up the file names for
|
||
the output files, and opens the tmp files and the parser */
|
||
void
|
||
openfiles()
|
||
{
|
||
char *name_base;
|
||
register char *cp;
|
||
char *filename;
|
||
int base_length;
|
||
int short_base_length;
|
||
|
||
#if defined (VMS) & !defined (__VMS_POSIX)
|
||
char *tmp_base = "sys$scratch:b_";
|
||
#else
|
||
char *tmp_base = "/tmp/b.";
|
||
#endif
|
||
int tmp_len;
|
||
|
||
#ifdef MSDOS
|
||
tmp_base = getenv ("TMP");
|
||
if (tmp_base == 0)
|
||
tmp_base = "";
|
||
strlwr (infile);
|
||
#endif /* MSDOS */
|
||
|
||
tmp_len = strlen (tmp_base);
|
||
|
||
if (spec_outfile)
|
||
{
|
||
/* -o was specified. The precise -o name will be used for ftable.
|
||
For other output files, remove the ".c" or ".tab.c" suffix. */
|
||
name_base = spec_outfile;
|
||
#ifdef MSDOS
|
||
strlwr (name_base);
|
||
#endif /* MSDOS */
|
||
/* BASE_LENGTH includes ".tab" but not ".c". */
|
||
base_length = strlen (name_base);
|
||
if (!strcmp (name_base + base_length - 2, ".c"))
|
||
base_length -= 2;
|
||
/* SHORT_BASE_LENGTH includes neither ".tab" nor ".c". */
|
||
short_base_length = base_length;
|
||
if (!strncmp (name_base + short_base_length - 4, ".tab", 4))
|
||
short_base_length -= 4;
|
||
else if (!strncmp (name_base + short_base_length - 4, "_tab", 4))
|
||
short_base_length -= 4;
|
||
}
|
||
else if (spec_file_prefix)
|
||
{
|
||
/* -b was specified. Construct names from it. */
|
||
/* SHORT_BASE_LENGTH includes neither ".tab" nor ".c". */
|
||
short_base_length = strlen (spec_file_prefix);
|
||
/* Count room for `.tab'. */
|
||
base_length = short_base_length + 4;
|
||
name_base = (char *) xmalloc (base_length + 1);
|
||
/* Append `.tab'. */
|
||
strcpy (name_base, spec_file_prefix);
|
||
#ifdef VMS
|
||
strcat (name_base, "_tab");
|
||
#else
|
||
strcat (name_base, ".tab");
|
||
#endif
|
||
#ifdef MSDOS
|
||
strlwr (name_base);
|
||
#endif /* MSDOS */
|
||
}
|
||
else
|
||
{
|
||
/* -o was not specified; compute output file name from input
|
||
or use y.tab.c, etc., if -y was specified. */
|
||
|
||
name_base = fixed_outfiles ? "y.y" : infile;
|
||
|
||
/* BASE_LENGTH gets length of NAME_BASE, sans ".y" suffix if any. */
|
||
|
||
base_length = strlen (name_base);
|
||
if (!strcmp (name_base + base_length - 2, ".y"))
|
||
base_length -= 2;
|
||
short_base_length = base_length;
|
||
|
||
#ifdef VMS
|
||
name_base = stringappend(name_base, short_base_length, "_tab");
|
||
#else
|
||
#ifdef MSDOS
|
||
name_base = stringappend(name_base, short_base_length, "_tab");
|
||
#else
|
||
name_base = stringappend(name_base, short_base_length, ".tab");
|
||
#endif /* not MSDOS */
|
||
#endif
|
||
base_length = short_base_length + 4;
|
||
}
|
||
|
||
finput = tryopen(infile, "r");
|
||
|
||
if (! noparserflag)
|
||
{
|
||
filename = getenv("BISON_SIMPLE");
|
||
#ifdef MSDOS
|
||
/* File doesn't exist in current directory; try in INIT directory. */
|
||
cp = getenv("INIT");
|
||
if (filename == 0 && cp != NULL)
|
||
{
|
||
filename = xmalloc(strlen(cp) + strlen(PFILE) + 2);
|
||
strcpy(filename, cp);
|
||
cp = filename + strlen(filename);
|
||
*cp++ = '/';
|
||
strcpy(cp, PFILE);
|
||
}
|
||
#endif /* MSDOS */
|
||
fparser = tryopen(filename ? filename : PFILE, "r");
|
||
}
|
||
|
||
if (verboseflag)
|
||
{
|
||
#ifdef MSDOS
|
||
outfile = stringappend(name_base, short_base_length, ".out");
|
||
#else
|
||
/* We used to use just .out if spec_name_prefix (-p) was used,
|
||
but that conflicts with Posix. */
|
||
outfile = stringappend(name_base, short_base_length, ".output");
|
||
#endif
|
||
foutput = tryopen(outfile, "w");
|
||
}
|
||
|
||
if (noparserflag)
|
||
{
|
||
/* use permanent name for actions file */
|
||
actfile = stringappend(name_base, short_base_length, ".act");
|
||
faction = tryopen(actfile, "w");
|
||
}
|
||
|
||
#ifdef MSDOS
|
||
if (! noparserflag)
|
||
actfile = mktemp(stringappend(tmp_base, tmp_len, "acXXXXXX"));
|
||
tmpattrsfile = mktemp(stringappend(tmp_base, tmp_len, "atXXXXXX"));
|
||
tmptabfile = mktemp(stringappend(tmp_base, tmp_len, "taXXXXXX"));
|
||
tmpdefsfile = mktemp(stringappend(tmp_base, tmp_len, "deXXXXXX"));
|
||
#else
|
||
if (! noparserflag)
|
||
actfile = mktemp(stringappend(tmp_base, tmp_len, "act.XXXXXX"));
|
||
tmpattrsfile = mktemp(stringappend(tmp_base, tmp_len, "attrs.XXXXXX"));
|
||
tmptabfile = mktemp(stringappend(tmp_base, tmp_len, "tab.XXXXXX"));
|
||
tmpdefsfile = mktemp(stringappend(tmp_base, tmp_len, "defs.XXXXXX"));
|
||
#endif /* not MSDOS */
|
||
|
||
if (! noparserflag)
|
||
faction = tryopen(actfile, "w+");
|
||
fattrs = tryopen(tmpattrsfile,"w+");
|
||
ftable = tryopen(tmptabfile, "w+");
|
||
|
||
if (definesflag)
|
||
{
|
||
defsfile = stringappend(name_base, base_length, ".h");
|
||
fdefines = tryopen(tmpdefsfile, "w+");
|
||
}
|
||
|
||
#ifndef MSDOS
|
||
if (! noparserflag)
|
||
unlink(actfile);
|
||
unlink(tmpattrsfile);
|
||
unlink(tmptabfile);
|
||
unlink(tmpdefsfile);
|
||
#endif
|
||
|
||
/* These are opened by `done' or `open_extra_files', if at all */
|
||
if (spec_outfile)
|
||
tabfile = spec_outfile;
|
||
else
|
||
tabfile = stringappend(name_base, base_length, ".c");
|
||
|
||
#ifdef VMS
|
||
attrsfile = stringappend(name_base, short_base_length, "_stype.h");
|
||
guardfile = stringappend(name_base, short_base_length, "_guard.c");
|
||
#else
|
||
#ifdef MSDOS
|
||
attrsfile = stringappend(name_base, short_base_length, ".sth");
|
||
guardfile = stringappend(name_base, short_base_length, ".guc");
|
||
#else
|
||
attrsfile = stringappend(name_base, short_base_length, ".stype.h");
|
||
guardfile = stringappend(name_base, short_base_length, ".guard.c");
|
||
#endif /* not MSDOS */
|
||
#endif /* not VMS */
|
||
}
|
||
|
||
|
||
|
||
/* open the output files needed only for the semantic parser.
|
||
This is done when %semantic_parser is seen in the declarations section. */
|
||
|
||
void
|
||
open_extra_files()
|
||
{
|
||
FILE *ftmp;
|
||
int c;
|
||
char *filename, *cp;
|
||
|
||
if (fparser)
|
||
fclose(fparser);
|
||
|
||
if (! noparserflag)
|
||
{
|
||
filename = (char *) getenv ("BISON_HAIRY");
|
||
#ifdef MSDOS
|
||
/* File doesn't exist in current directory; try in INIT directory. */
|
||
cp = getenv("INIT");
|
||
if (filename == 0 && cp != NULL)
|
||
{
|
||
filename = xmalloc(strlen(cp) + strlen(PFILE1) + 2);
|
||
strcpy(filename, cp);
|
||
cp = filename + strlen(filename);
|
||
*cp++ = '/';
|
||
strcpy(cp, PFILE1);
|
||
}
|
||
#endif
|
||
fparser= tryopen(filename ? filename : PFILE1, "r");
|
||
}
|
||
|
||
/* JF change from inline attrs file to separate one */
|
||
ftmp = tryopen(attrsfile, "w");
|
||
rewind(fattrs);
|
||
while((c=getc(fattrs))!=EOF) /* Thank god for buffering */
|
||
putc(c,ftmp);
|
||
fclose(fattrs);
|
||
fattrs=ftmp;
|
||
|
||
fguard = tryopen(guardfile, "w");
|
||
|
||
}
|
||
|
||
/* JF to make file opening easier. This func tries to open file
|
||
NAME with mode MODE, and prints an error message if it fails. */
|
||
FILE *
|
||
tryopen(name, mode)
|
||
char *name;
|
||
char *mode;
|
||
{
|
||
FILE *ptr;
|
||
|
||
ptr = fopen(name, mode);
|
||
if (ptr == NULL)
|
||
{
|
||
fprintf(stderr, "%s: ", program_name);
|
||
perror(name);
|
||
done(2);
|
||
}
|
||
return ptr;
|
||
}
|
||
|
||
void
|
||
done(k)
|
||
int k;
|
||
{
|
||
if (faction)
|
||
fclose(faction);
|
||
|
||
if (fattrs)
|
||
fclose(fattrs);
|
||
|
||
if (fguard)
|
||
fclose(fguard);
|
||
|
||
if (finput)
|
||
fclose(finput);
|
||
|
||
if (fparser)
|
||
fclose(fparser);
|
||
|
||
if (foutput)
|
||
fclose(foutput);
|
||
|
||
/* JF write out the output file */
|
||
if (k == 0 && ftable)
|
||
{
|
||
FILE *ftmp;
|
||
register int c;
|
||
|
||
ftmp=tryopen(tabfile, "w");
|
||
rewind(ftable);
|
||
while((c=getc(ftable)) != EOF)
|
||
putc(c,ftmp);
|
||
fclose(ftmp);
|
||
fclose(ftable);
|
||
|
||
if (definesflag)
|
||
{
|
||
ftmp = tryopen(defsfile, "w");
|
||
fflush(fdefines);
|
||
rewind(fdefines);
|
||
while((c=getc(fdefines)) != EOF)
|
||
putc(c,ftmp);
|
||
fclose(ftmp);
|
||
fclose(fdefines);
|
||
}
|
||
}
|
||
|
||
#if defined (VMS) & !defined (__VMS_POSIX)
|
||
if (faction && ! noparserflag)
|
||
delete(actfile);
|
||
if (fattrs)
|
||
delete(tmpattrsfile);
|
||
if (ftable)
|
||
delete(tmptabfile);
|
||
if (k==0) sys$exit(SS$_NORMAL);
|
||
sys$exit(SS$_ABORT);
|
||
#else
|
||
#ifdef MSDOS
|
||
if (actfile && ! noparserflag) unlink(actfile);
|
||
if (tmpattrsfile) unlink(tmpattrsfile);
|
||
if (tmptabfile) unlink(tmptabfile);
|
||
if (tmpdefsfile) unlink(tmpdefsfile);
|
||
#endif /* MSDOS */
|
||
exit(k);
|
||
#endif /* not VMS, or __VMS_POSIX */
|
||
}
|