The string pool is maintained both in core, and in a second tmp file.

[unix-history] / usr / src / old / as.vax / asmain.c

diff --git a/usr/src/old/as.vax/asmain.c b/usr/src/old/as.vax/asmain.c
index c869333..e56de1d 100644 (file)
--- a/usr/src/old/as.vax/asmain.c
+++ b/usr/src/old/as.vax/asmain.c
@@ -1,16 +1,21 @@
-/* Copyright (c) 1980 Regents of the University of California */
-static char sccsid[] = "@(#)asmain.c 4.5 %G%";
+/*
+ *     Copyright (c) 1982 Regents of the University of California
+ */
+#ifndef lint
+static char sccsid[] = "@(#)asmain.c 4.11 %G%";
+#endif not lint
+

 #include <stdio.h>
 #include <ctype.h>
 #include <signal.h>
 
 #include "as.h"
 #include "assyms.h"
 #include <stdio.h>
 #include <ctype.h>
 #include <signal.h>
 
 #include "as.h"
 #include "assyms.h"

-#include "asexpr.h"

 #include "asscan.h"
 #include "asscan.h"

+#include "asexpr.h"

 
 #ifdef UNIX
 
 #ifdef UNIX

-#define        unix_lang_name "VAX/UNIX Assembler V%G% 4.5"
+#define        unix_lang_name "VAX/UNIX Assembler V%G% 4.11"

 #endif
 
 #ifdef VMS
 #endif
 
 #ifdef VMS


@@ -31,11 +36,16 @@ int silent = 0;     /*don't complain about any errors*/
 int    savelabels = 0; /*write the labels to the a.out file*/
 int    d124 = 4;       /*default allocate 4 bytes for unknown pointers*/
 int    anyerrs = 0;    /*no errors yet*/
 int    savelabels = 0; /*write the labels to the a.out file*/
 int    d124 = 4;       /*default allocate 4 bytes for unknown pointers*/
 int    anyerrs = 0;    /*no errors yet*/

+int    anywarnings=0;  /*no warnings yet*/

 int    orgwarn = 0;    /*Bad origins*/
 int    passno = 1;     /* current pass*/
 int    jxxxJUMP = 0;   /* in jxxxes that branch too far, use jmp instead of brw */
 int    readonlydata = 0;       /* initialzed data -> text space */
 
 int    orgwarn = 0;    /*Bad origins*/
 int    passno = 1;     /* current pass*/
 int    jxxxJUMP = 0;   /* in jxxxes that branch too far, use jmp instead of brw */
 int    readonlydata = 0;       /* initialzed data -> text space */
 

+int    nGHnumbers = 0;         /* GH numbers used */
+int    nGHopcodes = 0;         /* GH opcodes used */
+int    nnewopcodes = 0;        /* new opcodes used */
+

 #ifdef DEBUG
 int    debug = 0;
 int    toktrace = 0;
 #ifdef DEBUG
 int    debug = 0;
 int    toktrace = 0;


@@ -72,11 +82,19 @@ u_long      drsize;         /* total data relocation size */
 struct exp     usedot[NLOC+NLOC];      /* info about all segments */
 struct exp     *dotp;                  /* data/text location pointer */
 /*
 struct exp     usedot[NLOC+NLOC];      /* info about all segments */
 struct exp     *dotp;                  /* data/text location pointer */
 /*

- *     The inter pass temporary file is opened and closed by stdio, but
+ *     The inter pass temporary token file is opened and closed by stdio, but

  *     is written to using direct read/write, as the temporary file
  *     is composed of buffers exactly BUFSIZ long.
  */
  *     is written to using direct read/write, as the temporary file
  *     is composed of buffers exactly BUFSIZ long.
  */

-FILE   *tmpfil;                        /* interpass communication file */
+FILE   *tokfile;                       /* interpass communication file */
+char   tokfilename[TNAMESIZE];
+/*
+ *     The string file is the string table
+ *     cat'ed to the end of the built up a.out file
+ */
+FILE   *strfile;                       /* interpass string file */
+char   strfilename[TNAMESIZE];
+int    strfilepos = 0;                 /* position within the string file */

 /*
  *     a.out is created during the second pass.
  *     It is opened by stdio, but is filled with the parallel
 /*
  *     a.out is created during the second pass.
  *     It is opened by stdio, but is filled with the parallel


@@ -161,8 +179,6 @@ char        *tmpdirprefix =
                        "/usr/tmp/";
 #endif
 
                        "/usr/tmp/";
 #endif
 

-#define                TMP_SUFFIX      "asXXXXXX"
-char           tmpn1[TNAMESIZE];

 
 int delexit();
 
 
 int delexit();
 


@@ -170,9 +186,11 @@ main(argc, argv)
        int     argc;
        char    **argv;
 {
        int     argc;
        char    **argv;
 {

+       char    *sbrk();

 
 

-       tmpn1[0] = 0;
-       endcore = (char *)sbrk(0);
+       tokfilename[0] = 0;
+       strfilename[0] = 0;
+       endcore = sbrk(0);

 
        argprocess(argc, argv);         /* process argument lists */
        if (anyerrs) exit(1);
 
        argprocess(argc, argv);         /* process argument lists */
        if (anyerrs) exit(1);


@@ -206,6 +224,16 @@ main(argc, argv)
 
        if (anyerrs == 0 && orgwarn)
                yyerror("Caution: absolute origins.\n");
 
        if (anyerrs == 0 && orgwarn)
                yyerror("Caution: absolute origins.\n");

+
+       if (nGHnumbers)
+               yywarning("Caution: G or H format floating point numbers");
+       if (nGHopcodes)
+               yywarning("Caution: G or H format floating point operators");
+       if (nnewopcodes)
+               yywarning("Caution: New Opcodes");
+       if (nGHnumbers || nGHopcodes || nnewopcodes)
+               yywarning("These are not defined for all implementations of the VAX architecture.\n");
+

        exit(anyerrs != 0);
 }      /*end of UNIX main*/
 
        exit(anyerrs != 0);
 }      /*end of UNIX main*/
 


@@ -238,6 +266,9 @@ argprocess(argc, argv)
                                        yyerror("Unknown flag: %c", *--cp);
                                        cp++;
                                        break;
                                        yyerror("Unknown flag: %c", *--cp);
                                        cp++;
                                        break;

+                                case 'v':
+                                       selfwhat(stdout);
+                                       exit(1);

                                 case 'd':
                                        d124 = *cp++ - '0';
                                        if ( (d124 != 1) && (d124 != 2) && 
                                 case 'd':
                                        d124 = *cp++ - '0';
                                        if ( (d124 != 1) && (d124 != 2) && 


@@ -296,6 +327,37 @@ argprocess(argc, argv)
        }
        /* innames[ninfiles] = 0; */
 }
        }
        /* innames[ninfiles] = 0; */
 }

+/*
+ *     poke through the data space and find all sccs identifiers.
+ *     We assume:
+ *     a) that extern char **environ; is the first thing in the bss
+ *     segment (true, if one is using the new version of cmgt.crt0.c)
+ *     b) that the sccsid's have not been put into text space.
+ */
+selfwhat(place)
+       FILE    *place;
+{
+       extern  char **environ;
+       register        char    *ub;
+       register        char *cp;
+       register        char    *pat;
+       char    *sbrk();
+
+       for (cp = (char *)&environ, ub = sbrk(0); cp < ub; cp++){
+               if (cp[0] != '@') continue;
+               if (cp[1] != '(') continue;
+               if (cp[2] != '#') continue;
+               if (cp[3] != ')') continue;
+               fputc('\t', place);
+               for (cp += 4; cp < ub; cp++){
+                       if (*cp == 0) break;
+                       if (*cp == '>') break;
+                       if (*cp == '\n') break;
+                       fputc(*cp, place);
+               }
+               fputc('\n', place);
+       }
+}

 
 initialize()
 {
 
 initialize()
 {


@@ -324,8 +386,6 @@ zeroorigins()
                usedot[NLOC + locindex].e_xtype = XDATA;
                usedot[locindex].e_xvalue = 0;
                usedot[NLOC + locindex].e_xvalue = 0;
                usedot[NLOC + locindex].e_xtype = XDATA;
                usedot[locindex].e_xvalue = 0;
                usedot[NLOC + locindex].e_xvalue = 0;

-               usedot[locindex].e_yvalue = 0;
-               usedot[NLOC + locindex].e_yvalue = 0;

        }
 }
 
        }
 }
 


@@ -341,21 +401,40 @@ zerolocals()
 
 i_pass1()
 {
 
 i_pass1()
 {

-       if (useVM == 0){
-               strcat(tmpn1, tmpdirprefix);
-               strcat(tmpn1, TMP_SUFFIX);
-               mktemp(tmpn1);
-               tmpfil = fopen(tmpn1, "w");
-               if (tmpfil==NULL) {
-                 yyerror("Bad pass 1 temporary file for writing %s", tmpn1);
-                 delexit();
-               }
-       }
+       FILE    *tempopen();
+       if (useVM == 0)
+               tokfile = tempopen(tokfilename, "T");
+       strfile = tempopen(strfilename, "S");
+       /*
+        *      write out the string length.
+        *      This will be overwritten when the
+        *      strings are tacked onto the growing a.out file
+        */
+       strfilepos = sizeof(int);
+       fwrite(&strfilepos, sizeof(int), 1, strfile);

 
 

-       inittmpfile();
+       inittokfile();

        initijxxx();
 }
 
        initijxxx();
 }
 

+FILE *tempopen(tname, part)
+       char    *tname;
+       char    *part;
+{
+       FILE    *file;
+       sprintf(tname, "%s%sas%s%05d",
+               tmpdirprefix,
+               (tmpdirprefix[strlen(tmpdirprefix)-1] != '/') ? "/" : 0,
+               part,
+               getpid());
+       file = fopen(tname, "w");
+       if (file == NULL) {
+               yyerror("Bad pass 1 temporary file for writing %s", tname);
+               delexit();
+       }
+       return(file);
+}
+

 pass1()
 {
        register        int     i;
 pass1()
 {
        register        int     i;


@@ -384,7 +463,7 @@ pass1()
                }
        }
 
                }
        }
 

-       closetmpfile();         /*kick out the last buffered intermediate text*/
+       closetokfile();         /*kick out the last buffered intermediate text*/

 }
 
 testlocals()
 }
 
 testlocals()


@@ -505,13 +584,15 @@ build_hdr()
 i_pass2()
 {
        if (useVM == 0) {
 i_pass2()
 {
        if (useVM == 0) {

-               fclose(tmpfil);
-               tmpfil = fopen(tmpn1, "r");
-               if (tmpfil==NULL) {
-                  yyerror("Bad pass 2 temporary file for reading %s", tmpn1);
+               fclose(tokfile);
+               tokfile = fopen(tokfilename, "r");
+               if (tokfile==NULL) {
+                  yyerror("Bad pass 2 temporary file for reading %s", tokfilename);

                   delexit();
                }
        }
                   delexit();
                }
        }

+       fclose(strfile);
+       strfile = fopen(strfilename, "r");

 }
 
 pass2()
 }
 
 pass2()


@@ -527,11 +608,11 @@ pass2()
        relfil = 0;             /* outrel takes care of the rest */
        initoutrel();
 
        relfil = 0;             /* outrel takes care of the rest */
        initoutrel();
 

-       inittmpfile();
+       inittokfile();

 
        yyparse();
 
 
        yyparse();
 

-       closetmpfile();
+       closetokfile();

 }
 
 fillsegments()
 }
 
 fillsegments()


@@ -573,13 +654,18 @@ reloc_syms()
        /*
         *      Output the symbol table
         *      and if FLEXNAMES is set, the string pool
        /*
         *      Output the symbol table
         *      and if FLEXNAMES is set, the string pool

+        *
+        *      We must first rewind the string pool file to its beginning,
+        *      in case it was seek'ed into for fetching ascii and asciz
+        *      strings.

         */
         */

+       fseek(strfile, 0, 0);

        symwrite(relocfile);
 }
 
 fix_a_out()
 {
        symwrite(relocfile);
 }
 
 fix_a_out()
 {

-       if (lseek(a_out_file->_file, 0L, 0) < 0)
+       if (lseek(a_out_file->_file, 0L, 0) < 0L)

                yyerror("Reposition for header rewrite fails");
        if (write(a_out_file->_file, (char *)&hdr, sizeof (struct exec)) < 0)
                yyerror("Rewrite of header fails");
                yyerror("Reposition for header rewrite fails");
        if (write(a_out_file->_file, (char *)&hdr, sizeof (struct exec)) < 0)
                yyerror("Rewrite of header fails");


@@ -596,8 +682,10 @@ delexit()
 
 delete()
 {
 
 delete()
 {

-       if (useVM == 0 || tmpn1[0])
-               unlink(tmpn1);
+       if (useVM == 0 || tokfilename[0])
+               unlink(tokfilename);
+       if (strfilename[0])
+               unlink(strfilename);

 }
 
 sawabort()
 }
 
 sawabort()