File r37/lisp/csl/util/build37.lsp artifact 5f3727eb2c part of check-in 5f584e9b52


%
% Build a CSL REDUCE.
%
% Depending on how this file is used it will EITHER create a bootstrap
% version of REDUCE or a full and optimised one.
%
% The behaviour is determined by whether the version of CSL used to
% run it has a full complement of functions in the modules u01.c to u12.c.
%
%
%           slowr37 -z build37.lsp -- log/boot37.log
%
% Builds a system "slowr37.img" that does not depend on any
% custom C code. The main use of this slow system is for profiling
% REDUCE and then compiling the hot-spots into C. Once that has been
% done this image is logically unnecessary.
%
%
%           r37 -z build37.lsp -l log/full37.log
%
% Here the files u01.c to u12.c and u01.lsp to u12.lsp must already
% have been created, and that the r37 executable has them compiled in.
% The REDUCE source files that are compiled *MUST* be the same as those used
% to create this C code.

% Author: Anthony C. Hearn, Stanley L. Kameny and Arthur Norman

(verbos 3)

(window!-heading "basic CSL")

(setq !*savedef (lessp (cdr (assoc 'c!-code lispsystem!*)) 20))

(cond ((null !*savedef) (progn

   (de c!:install (name env c!-version !&optional c1)
      (cond
        (c1 (check!-c!-code name env c!-version c1))
        (t (progn
              (put name 'c!-version c!-version)
              (cond (env (prog (v n)
                 (setq v (mkvect (sub1 (length env))))
                 (setq n 0)
            top  (cond
                    ((null env) (progn
                     (put name 'funarg v)
                     (return (symbol!-set!-env name v)))))
                 (putv v n (car env))
                 (setq n (add1 n))
                 (setq env (cdr env))
                 (go top))))
              name))))

   (rdf "../csl-c/u01.lsp")
   (rdf "../csl-c/u02.lsp")
   (rdf "../csl-c/u03.lsp")
   (rdf "../csl-c/u04.lsp")
   (rdf "../csl-c/u05.lsp")
   (rdf "../csl-c/u06.lsp")
   (rdf "../csl-c/u07.lsp")
   (rdf "../csl-c/u08.lsp")
   (rdf "../csl-c/u09.lsp")
   (rdf "../csl-c/u10.lsp")
   (rdf "../csl-c/u11.lsp")
   (rdf "../csl-c/u12.lsp")    )))

(rdf "../util/fastgets.lsp")
(rdf "../cslbase/compat.lsp")
(rdf "../cslbase/extras.lsp")
(rdf "../cslbase/compiler.lsp")

(compile!-all)

(setq !*comp t)               % It's faster if we compile the boot file.

% Tidy up be deleting any modules that are left over in this image

(dolist (a (library!-members)) (delete!-module a))

% Build fasl files for the compatibility code and the two
% versions of the compiler.

(faslout 'cslcompat)
(rdf "../util/fastgets.lsp")
(rdf "../cslbase/compat.lsp")
(rdf "../cslbase/extras.lsp")
(faslend)

(faslout 'compiler)
(rdf "../cslbase/compiler.lsp")
(faslend)

(faslout 'ccomp)
(rdf "../cslbase/ccomp.lsp")
(faslend)

(setq !*comp t)

(de concat (u v)
    (compress (cons '!" (append (explode2 u)
			 (nconc (explode2 v) (list '!"))))))

(global '(oldchan!*))

(setq prolog_file 'cslprolo)

(setq rend_file 'cslrend)

(setq !*argnochk t)

(setq !*int nil)                    % Prevents input buffer being saved.

(setq !*msg nil)

(global '(!$reduce))

(setq !$reduce "../../..")

(window!-heading "bootstrap RLISP")

(rdf "$reduce/packages/support/boot.sl")

(begin2)

rds(xxx := open("$reduce/packages/support/build.red",'input));

(close xxx)

(load!-package!-sources prolog_file 'support)

(load!-package!-sources 'rlisp 'rlisp)

(load!-package!-sources rend_file 'support)

(load!-package!-sources 'poly 'poly)

(load!-package!-sources 'alg 'alg)

(load!-package!-sources 'arith 'arith)  %  Needed by roots, specfn*, (psl).

(load!-package!-sources 'entry 'support)

(load!-package!-sources 'remake 'support)

(setq !*comp nil)



(begin)

symbolic;

!#if (not !*savedef)

faslout 'user;

%
% The "user" module is only useful when building a full system, since
% in the bootstrap the files u01.lsp to u12.lsp will probably not exist
% and it is CERTAIN that they are not useful.
%

symbolic procedure c!:install(name, env, c!-version, !&optional, c1);
  begin
    scalar v, n;
    if c1 then return check!-c!-code(name, env, c!-version, c1);
    put(name, 'c!-version, c!-version);
    if null env then return name;
    v := mkvect sub1 length env;
    n := 0;
    while env do <<
      putv(v, n, car env);
      n := n + 1;
      env := cdr env >>;
% I only instate the environment if there is nothing useful there at
% present. Actually this is even stronger. When a built-in function is
% set up it gets NIL in its environment cell by default. Things that are
% not defined at all have themselves there.
    if symbol!-env name = nil then symbol!-set!-env(name, v);
    put(name, 'funarg, v);
    return name;
  end;


rdf "../csl-c/u01.lsp"$
rdf "../csl-c/u02.lsp"$
rdf "../csl-c/u03.lsp"$
rdf "../csl-c/u04.lsp"$
rdf "../csl-c/u05.lsp"$
rdf "../csl-c/u06.lsp"$
rdf "../csl-c/u07.lsp"$
rdf "../csl-c/u08.lsp"$
rdf "../csl-c/u09.lsp"$
rdf "../csl-c/u10.lsp"$
rdf "../csl-c/u11.lsp"$
rdf "../csl-c/u12.lsp"$


faslend;

!#endif

faslout 'remake;

!#if (not !*savedef)

load!-module "user";

!#endif

in "$reduce/packages/support/remake.red"$

% This next function recompiles the "patches" module from source
% if the current compiled module for it seems out of date. It loads
% that module into memory if that seems necessary, and then applies
% patches to those packages that are already loaded.

symbolic procedure ensure_patches_are_up_to_date();
  begin
    scalar sourcedate, fasldate, w;
    if not boundp '!$reduce or not stringp !$reduce then <<
       if boundp '!@reduce and stringp !@reduce then
          !$reduce := !@reduce
       else !$reduce := "../../.." >>;
    sourcedate := filedate "$reduce/packages/support/patches.red";
    fasldate := modulep 'patches;
    if sourcedate and
       (null fasldate or datelessp(fasldate, sourcedate)) then <<
       faslout 'patches;
       semic!* := '!$;
       in "$reduce/packages/support/patches.red"$
       printc "patches.red read";
       faslend >>;
    if modulep 'patches then <<
       load!-module 'patches;
       for each p in loaded!-packages!* do begin
          scalar !*usermode, !*redefmsg;
          if (w := get(p, 'patchfn)) then apply(w, nil) end;
       if patch!-date!* then
          w := append(explodec ", 15-Jan-99 patched to ",
                  append(explodec patch!-date!*, explodec " ..."))
       else w := explodec ", 15-Jan-99 ...";
       startup!-banner list!-to!-string append(explodec version!*, w) >>
  end;

global '(r37_base_modules r37_extra_modules r37_test_cases !$reduce);

symbolic procedure get_configuration_data();
% Read data from a configuration file that lists the modules that must
% be processed.  NOTE that this and the next few funtions will ONLY
% work ppoperly if REDUCE had been started up with the correct
% working directory. This is (just about) acceptable because these are
% system maintainance functions rather than generally flexible things
% for arbitrary use.
  begin
    scalar i;
    i := open("../util/config.lsp", 'input);
    i := rds i;
    r37_base_modules := read();
    r37_extra_modules := read();
    r37_test_cases := read();
    i := rds i;
    close i
  end;

symbolic procedure build_reduce_modules names;
 <<
!#if !*savedef
   !*savedef := t;
!#else
   !*savedef := nil;
!#endif
   load!-latest!-patches();
   !$reduce := "../../..";    % Indicates how "$reduce" expands in a filename
   in "$reduce/package.red"$
   window!-heading list!-to!-string explodec car names;
   package!-remake car names;
   if null (names := cdr names) then printc "Recompilation complete";
!#if !*savedef
   if null names then restart!-csl 'begin
!#else
   if null names then restart!-csl '(user begin)
!#endif
   else restart!-csl('(remake build_reduce_modules), names) >>;

symbolic procedure test_a_package names;
  begin
    scalar packge, logname, logtmp, logfile, start_time, start_gctime, gt;
    scalar oll;
    princ "TESTING: "; print car names;
    window!-heading list!-to!-string explodec car names;
    !*backtrace := nil;
    !*errcont := t;
    !*extraecho := t;    % Ensure standard environment for the test...
    !*int := nil;        % ... so that results are predictable.
    !$reduce := "../../..";
    packge := car names;
    verbos nil;
    load!-latest!-patches();
    semic!* := '!$;
    if boundp '!@log and stringp !@log then logname := !@log
    else logname := "log";
    logname := concat("$reduce/", concat(logname, "/"));
    logtmp  := concat(logname, concat(car names, ".tmp"));
    logname := concat(logname, concat(car names,".rlg"));
    logfile := open(logtmp, 'output);
    in "$reduce/package.red"$
    begin
       scalar !*terminal!-io!*, !*standard!-output!*, !*error!-output!*,
              !*trace!-output!*, !*debug!-io!*, !*query!-io!*;
       !*terminal!-io!* := !*standard!-output!* := !*error!-output!* := logfile;
       !*trace!-output!* := !*debug!-io!* := !*query!-io!* := logfile;
       oll := linelength 80;
       princ date(); princ " run on "; printc cdr assoc('name, lispsystem!*);
       load!-package packge;
       if get(packge,'folder) then packge := get(packge,'folder);
       packge := concat("$reduce/packages/",
                   concat(packge,
                     concat("/",
                       concat(car names,".tst"))));
       start_time := time();
       start_gctime := gctime();
       !*mode := 'algebraic;
       semic!* := '!;;      % Specifically not a !$.
       !*extraecho := t;    % Ensure standard environment for the test...
       !*int := nil;        % ... so that results are predictable.
       in packge;
       terpri();
       terpri();
       prin2 "Time for test: ";
       prin2 (time() - start_time);
       prin2 " ms";
       if (gt := gctime() - start_gctime) > 0 then <<
           prin2 ", plus GC time: ";
           prin2 gt;
           prin2 " ms" >>;
       terpri();
       linelength oll
    end;
    close logfile;
    delete!-file logname;
    rename!-file(logtmp, logname);
    names := cdr names;
    if null names then restart!-csl t
    else restart!-csl('(remake test_a_package), names)
  end;

symbolic procedure report_incomplete_tests names;
  begin
% Displays information about what "complete_tests" would do
    scalar packge, tfile, logname;
    scalar date1, date2, date3;
    !$reduce := "../../..";
    semic!* := '!$;
    in "$reduce/package.red"$
    for each packge in names do <<
       tfile := packge;
       if get(packge,'folder) then tfile := get(packge,'folder);
       tfile := concat("$reduce/packages/",
                   concat(tfile,
                      concat("/",
                        concat(packge,".tst"))));
       if boundp '!@log and stringp !@log then logname := !@log
       else logname := "log";
       logname := concat("$reduce/", concat(logname, "/"));
       logname := concat(logname, concat(packge,".rlg"));
       date1 := filedate "r37.img";
       date2 := filedate tfile;
       date3 := filedate logname;
       if null date1 then date1 := date();
       if null date2 then date2 := date();
       if null date3 or
          datelessp(date3, date1) or datelessp(date3, date2) then <<
             princ "NEED TO TEST: "; print packge >> >>
  end;

symbolic procedure complete_tests names;
  begin
% Just like the previous testing code except that logs that are already up
% to date are not re-generated.
    scalar packge, tfile, logname, logfile, logtmp,
           start_time, start_gctime, gt;
    scalar date1, date2, date3, oll;
    !*backtrace := nil;
    !*errcont := t;
    !*extraecho := t;    % Ensure standard environment for the test...
    !*int := nil;        % ... so that results are predictable.
    verbos nil;
    load!-latest!-patches();
    !$reduce := "../../..";
    semic!* := '!$;
    in "$reduce/package.red"$
top:
    tfile := packge := car names;
    if get(tfile,'folder) then tfile := get(tfile,'folder);
    tfile := concat("$reduce/packages/",
                concat(tfile,
                  concat("/",
                    concat(packge,".tst"))));
    if boundp '!@log and stringp !@log then logname := !@log
    else logname := "log";
    logname := concat("$reduce/", concat(logname, "/"));
    logtmp  := concat(logname, concat(packge, ".tmp"));
    logname := concat(logname, concat(packge, ".rlg"));
    date1 := filedate "r37.img";
    date2 := filedate tfile;
    date3 := filedate logname;
    if null date1 then date1 := date();
    if null date2 then date2 := date();
    if null date3 or
       datelessp(date3, date1) or datelessp(date3, date2) then <<
       princ "TESTING: "; print packge;
       window!-heading list!-to!-string explodec packge;
       logfile := open(logtmp, 'output);
       start_time := time();
       start_gctime := gctime();
       begin
          scalar !*terminal!-io!*, !*standard!-output!*, !*error!-output!*,
                 !*trace!-output!*, !*debug!-io!*, !*query!-io!*;
          !*terminal!-io!* := !*standard!-output!* := !*error!-output!* := logfile;
          !*trace!-output!* := !*debug!-io!* := !*query!-io!* := logfile;
          oll := linelength 80;
          princ date(); princ " run on ";
          printc cdr assoc('name, lispsystem!*);
          load!-package packge;
          !*mode := 'algebraic;
          semic!* := '!;;      % Specifically not a !$.
          !*extraecho := t;    % Ensure standard environment for the test...
          !*int := nil;        % ... so that results are predictable.
          in tfile;
          terpri();
          terpri();
          prin2 "Time for test: ";
          prin2 (time() - start_time);
          prin2 " ms";
          if (gt := gctime() - start_gctime) > 0 then <<
              prin2 ", plus GC time: ";
              prin2 gt;
              prin2 " ms" >>;
          terpri();
          linelength oll
       end;
       close logfile;
       delete!-file logname;
       rename!-file(logtmp, logname) >>
    else if cdr names then <<
       names := cdr names;
       go to top >>;
    names := cdr names;
    if null names then restart!-csl t
    else restart!-csl('(remake complete_tests), names)
  end;

symbolic procedure profile_compare_fn(p, q);
   (float caddr p/float cadr p) < (float caddr q/float cadr q);

%
% This function runs a test file and sorts out what the top 350
% functions in it. It appends their names to "profile.dat".
%

% I need to talk a little about the interaction between profiling and
% patching.  Well firstly I arrange that whenever I run a profiling job
% I rebuild REDUCE with the latest paches. This may involve re-compiling
% the patches.red source.  Thus when a test is run the current patches
% will be in place. Patched functions are first defined with funny names
% (including a hash based on their definition) and then copied into place
% when a package is loaded. However MAPSTORE and the CSL instrumentation
% attributes their cost to the hash-extended name even though the
% functions may have been called via the simple one. Thus in the face
% of patches one can expect the profile data to refer to some names that
% are long and curious looking. Throughout all this I assume that there will
% never be embarassing collisions in my hash functions.

symbolic procedure profile_a_package names;
  begin
    scalar packge, oll, w, w1, w2;
    ensure_patches_are_up_to_date();
    princ "PROFILING: "; print car names;
    !*backtrace := nil;
    !*errcont := t;
    !*int := nil;
    !$reduce := "../../..";
    packge := car names;
    verbos nil;
    load!-latest!-patches();
    load!-package packge;
    semic!* := '!$;
    in "$reduce/package.red"$
    if get(packge,'folder) then packge := get(packge,'folder);
    packge := concat("$reduce/packages/",
                concat(packge,
                  concat("/",
                    concat(car names,".tst"))));
    oll := linelength 80;
    semic!* := '!;;  % specifically not a !$.
    !*mode := 'algebraic;
    window!-heading list!-to!-string explodec car names;
    mapstore 4;  % reset counts;
    in packge;
    terpri();
    w := sort(mapstore 2, function profile_compare_fn);
    w1 := nil;
    while w do <<
        w2 := get(caar w, '!*savedef);
        if eqcar(w2, 'lambda) then w1 := (caar w . md60 cdr w2 .
                                          cadar w . caddar w) . w1;
        w := cdr w >>;
    w := w1;
    % I collect the top 350 functions as used by each test, not because all
    % that many will be wanted but because I might as well record plenty
    % of information here and discard unwanted parts later on.
    for i := 1:349 do if w1 then w1 := cdr w1;
    if w1 then rplacd(w1, nil);
    % princ "MODULE "; prin car names; princ " suggests ";
    % print for each z in w collect car z;
    w1 := open("profile.dat", 'append);
    w1 := wrs w1;
    linelength 80;
    princ "("; prin car names; terpri();
    for each n in w do <<
        princ "  ("; prin car n; princ " ";
        if posn() > 30 then << terpri(); ttab 30 >>;
        prin cadr n;
        % I also display the counts just to help me debug & for interest.
        princ " "; prin caddr n; princ " "; princ cdddr n;
        printc ")" >>;
    printc "  )";
    terpri();
    close wrs w1;
    linelength oll;
    names := cdr names;
    if null names then restart!-csl t
    else restart!-csl('(remake profile_a_package), names)
  end;

symbolic procedure trim_prefix(a, b);
  begin
    while a and b and car a = car b do <<
      a := cdr a;
      b := cdr b >>;
    if null a then return b
    else return nil
  end;

fluid '(time_info);

symbolic procedure read_file f1;
  begin
% I take the view that I can afford to read the whole of a file into
% memory at the start of processing. This makes life easier for me
% and the REDUCE log files are small compared with current main memory sizes.
    scalar r, w, w1, n, x;
    scalar p1, p2, p3, p4, p5, p6, p7;
% To make comparisons between my CSL logs and some of the Hearn "reference
% logs", which are created using a different script, I will discard
% lines that match certain patterns!  Note that if the reference logs change
% the particular tests I perform here could become out of date! Also if any
% legitimate test output happened to match one of the following strings
% I would lose out slightly.
    p1 := explodec "REDUCE 3.7,";
    p2 := explodec "1: 1:";
    p3 := explodec "2: 2: 2:";
    p4 := explodec "3: 3: ";    % a prefix to first real line of output.
    p5 := explodec "4: 4: 4:";
    p6 := explodec "5: 5:";
    p7 := explodec "Quittin";   % nb left so that the "g" remains!
                                % this is so that the match is detected.
    r := nil;
    n := 0;
    while not ((w := readline f1) = !$eof!$) do <<
       w1 := explodec w;
       if x := trim_prefix(p4, w1) then
           r := ((n := n + 1) . list!-to!-string x) . r
       else if trim_prefix(p1, w1) or
               trim_prefix(p2, w1) or
               trim_prefix(p3, w1) or
               trim_prefix(p5, w1) or
               trim_prefix(p6, w1) or
               trim_prefix(p7, w1) then nil
       else r := ((n := n + 1) . w) . r >>;
    w := r;
% The text scanned for here is expected to match that generated by the
% test script. I locate the last match in a file, extract the numbers
% and eventually write them to log/times.log
    n := explodec "Time for test:";
    while w and null (x := trim_prefix(n, explodec cdar w)) do w := cdr w;
    if null w then <<
       time_info := nil;
       return reversip r >>;
    while eqcar(x, '! ) do x := cdr x;
    w := n := nil;
    while digit car x do << w := car x . w; x := cdr x >>;
    while eqcar(x, '! ) do x := cdr x;
    if x := trim_prefix(explodec "ms, plus GC time:", x) then <<
        while eqcar(x, '! ) do x := cdr x;
        while digit car x do << n := car x . n; x := cdr x >> >>;
    if null w then w := '(!0);
    if null n then n := '(!0);
    time_info := compress reverse w . compress reverse n;
    return reversip r;
  end;

symbolic procedure in_sync(d1, n1, d2, n2);
  begin
    for i := 1:n1 do if d1 then <<
       d1 := cdr d1 >>;
    for i := 1:n2 do if d2 then <<
       d2 := cdr d2 >>;
    if null d1 then return null d2
    else if null d2 then return nil;
% Here I insist on 3 lines that agree before I count a match as
% having been re-established.
    if not (cdar d1 = cdar d2) then return nil;
    d1 := cdr d1; d2 := cdr d2;
    if null d1 then return null d2
    else if null d2 then return nil;
    if not (cdar d1 = cdar d2) then return nil;
    d1 := cdr d1; d2 := cdr d2;
    if null d1 then return null d2
    else if null d2 then return nil;
    if not (cdar d1 = cdar d2) then return nil;
    d1 := cdr d1; d2 := cdr d2;
    if null d1 then return null d2
    else if null d2 then return nil
    else return t
  end;

fluid '(time_data time_ratio gc_time_ratio log_count);

symbolic procedure file_compare(f1, f2, name);
  begin
    scalar i, j, d1, d2, t1, gt1, t2, gt2, time_info;
    d1 := read_file f1;
    if null time_info then t1 := gt1 := 0
    else << t1 := car time_info; gt1 := cdr time_info >>;
    d2 := read_file f2;
    if null time_info then t2 := gt2 := 0
    else << t2 := car time_info; gt2 := cdr time_info >>;
    i := wrs time_data;
    j := set!-print!-precision 3;
    prin name;
    ttab 20;
    if zerop t1 then princ "---"
    else << prin t1; ttab 30; prin gt1 >>;
    ttab 40;
    if zerop t2 then princ "---"
    else << prin t2; ttab 50; prin gt2 >>;
    ttab 60;
    if zerop t1 or zerop t2 then princ "***       ***"
    else begin
       scalar r1, gr1;
       r1 := float t1 / float t2;
       gr1 := float (t1+gt1)/float (t2+gt2);
       time_ratio := time_ratio * r1;
       gc_time_ratio := gc_time_ratio * gr1;
       log_count := log_count + 1;
       prin r1;
       ttab 70;
       prin gr1 end;
    terpri();
    set!-print!-precision j;
    wrs i;
% I can not see a neat way to get a "structured" control structure
% here easily.  Ah well, drop back to GOTO statements!
top:
    if null d1 then <<
       if d2 then terpri();
       i := 0;
       while d2 and i < 20 do <<
          princ "REF "; princ caar d2; princ ":"; ttab 10; printc cdar d2;
          d2 := cdr d2;
          i := i + 1 >>;
       if d2 then printc "...";
       return >>;
    if null d2 then <<
       i := 0;
       while d1 and i < 20 do <<
          princ "NEW "; princ caar d1; princ ":"; ttab 10; printc cdar d1;
          d1 := cdr d1;
          i := i + 1 >>;
       if d1 then printc "...";
       return >>;
    if cdar d1 = cdar d2 then <<
       d1 := cdr d1;
       d2 := cdr d2;
       go to top >>;
% I will first see if there are just a few blank lines inserted into
% one or other file. This special case is addressed here because it
% appears more common a possibility than I had expected.
    if cdar d1 = "" and cdr d1 and cdadr d1 = cdar d2 then <<
       princ "NEW "; princ caar d1; princ ":"; ttab 10; printc cdar d1;
       d1 := cdr d1;
       go to top >>
    else if cdar d1 = "" and cdr d1 and cdadr d1 = "" and cddr d1 and
       cdaddr d1 = cdar d2 then <<
       princ "NEW "; princ caar d1; princ ":"; ttab 10; printc cdar d1;
       d1 := cdr d1;
       princ "NEW "; princ caar d1; princ ":"; ttab 10; printc cdar d1;
       d1 := cdr d1;
       go to top >>
    else if cdar d2 = "" and cdr d2 and cdadr d2 = cdar d1 then <<
       princ "REF "; princ caar d2; princ ":"; ttab 10; printc cdar d2;
       d2 := cdr d2;
       go to top >>
    else if cdar d2 = "" and cdr d2 and cdadr d2 = "" and cddr d2 and
       cdaddr d2 = cdar d1 then <<
       princ "REF "; princ caar d2; princ ":"; ttab 10; printc cdar d2;
       d2 := cdr d2;
       princ "REF "; princ caar d2; princ ":"; ttab 10; printc cdar d2;
       d2 := cdr d2;
       go to top >>;
    i := 1;
seek_rematch:
    j := 0;
inner:
    if in_sync(d1, i, d2, j) then <<
       terpri();
       for k := 1:i do <<
          princ "NEW "; princ caar d1; princ ":"; ttab 10; printc cdar d1;
          d1 := cdr d1 >>;
       for k := 1:j do <<
          princ "REF "; princ caar d2; princ ":"; ttab 10; printc cdar d2;
          d2 := cdr d2 >>;
% Should be in step again here.
       if null d1 then return
       else go to top >>;
    j := j + 1;
    i := i - 1;
    if i >= 0 then go to inner;
    i := j;
% I am prepared to seek 80 lines ahead on each side before I give up.
    if i < 80 then goto seek_rematch;
    terpri();
    i := 0;
    while d2 and i < 20 do <<
       princ "REF "; princ caar d2; princ ":"; ttab 10; printc cdar d2;
       d2 := cdr d2;
       i := i+1 >>;
    if d2 then printc "...";
    i := 0;
    while d1 and i < 20 do <<
       princ "NEW "; princ caar d1; princ ":"; ttab 10; printc cdar d1;
       d1 := cdr d1;
       i := i+1 >>;
    if d1 then printc "...";
    printc "Comparison failed."
  end;

fluid '(which_module);

symbolic procedure check_a_package;
  begin
    scalar oll, names, p1, mylogname, mylog, reflogname, reflog,
           time_data, time_ratio, gc_time_ratio, log_count;
    !$reduce := "../../..";
    get_configuration_data();
    if boundp 'which_module and which_module and
       not (which_module = "") then <<
       names := compress explodec which_module;
       if member(names, r37_test_cases) then names := list names
       else error(0, list("unknown module to check", which_module)) >>
    else names := r37_test_cases;
    semic!* := '!$;
    in "$reduce/package.red"$
% I write a summary of timing information into log/times.log
    time_data := open("log/times.log", 'output);
    p1 := wrs time_data;
    princ "MODULE";
    ttab 20; princ "Local";     ttab 30; princ "(GC)";
    ttab 40; princ "Reference"; ttab 50; princ "(GC)";
    ttab 60; princ "Ratio";     ttab 70; printc "inc GC";
    wrs p1;
    terpri();
    oll := linelength 100;
    printc "=== Comparison results ===";
    time_ratio := gc_time_ratio := 1.0; log_count := 0;
    for each packge in names do <<
       terpri();
       princ "CHECKING: "; print packge;
       if boundp '!@log and stringp !@log then logname := !@log
       else logname := "log";
       logname := concat("$reduce/", concat(logname, "/"));
       mylogname := concat(logname, concat(packge, ".rlg"));
       if get(packge,'folder) then p1 := get(packge,'folder)
       else p1 := packge;
       reflogname := concat("$reduce/packages/",
                       concat(p1,
                         concat("/",
                           concat(packge,".rlg"))));
       mylog := errorset(list('open, mkquote mylogname, ''input), nil, nil);
       reflog := errorset(list('open, mkquote reflogname, ''input), nil, nil);
       if errorp mylog then <<
          if not errorp reflog then close car reflog;
          princ "No current log in "; print mylogname >>
       else if errorp reflog then <<
          close car mylog;
          princ "No reference log in "; print reflogname >>
       else <<
          mylog := car mylog; reflog := car reflog;
          file_compare(mylog, reflog, packge);
          close mylog;
          close reflog >> >>;
     time_data := wrs time_data;
     if not zerop log_count then <<
        time_ratio := expt(time_ratio, 1.0/log_count);
        gc_time_ratio := expt(gc_time_ratio, 1.0/log_count);
        terpri();
        p1 := set!-print!-precision 3;
        princ "Over "; prin log_count; princ " tests the speed ratio was ";
        print time_ratio;
        princ "    (or ";
        prin gc_time_ratio;
        printc " is garbage collection costs are included)";
        set!-print!-precision p1 >>;
     close wrs time_data;
     linelength oll;
  end;


faslend;

faslout 'cslhelp;

module cslhelp;

global '(!*force);

flag('(force),'switch);
flag('(on),'eval);

on force;

symbolic procedure formhelp(u,vars,mode);
   list('help, 'list . for each x in cdr u collect mkquote x);

if member('help, lispsystem!*) then <<
   put('help, 'stat, 'rlis);
   flag('(help), 'go);
   put('help, 'formfn, 'formhelp) >>;

off force;
remflag('(on),'eval);

endmodule;

faslend;

load!-module 'remake;

ensure_patches_are_up_to_date();

<< initreduce();
   date!* := "Bootstrap version";
   checkpoint('begin, "REDUCE 3.7") >>;

!#if (not !*savedef)
load!-module 'user;
!#endif

in "$reduce/package.red"$

package!-remake2(prolog_file,'support);

package!-remake2(rend_file,'support);

package!-remake2('entry,'support);

package!-remake2('remake,'support);


% The next lines hava LOTS of hidden depth!  They restart CSL repeatedly
% so that each of the modules that has to be processed gets dealt with in
% a fresh uncluttered environment. The list of modules is fetched from
% a configuration file which must have 3 s-expressions in it. The first
% is a list of basic modules that must be built to get a core version of
% REDUCE. The second list identifies modules that can be built one the core
% is ready for use, while the last list indicates which modules have
% associated test scripts.
%
% when the modules have been rebuild the system does a restart that
% kicks it back into REDUCE by calling begin(). This then continues
% reading from the stream that had been the standard input when this
% job started. Thus this script MUST be invoked as
%           csl -oslowr37.img -z build37.lsp -l log/build37.log
% with the file build37.lsp specified on the command line in the call. It
% will not work if you start csl manually and then do a (rdf ..) [say]
% on build37.lsp.  I told you that it was a little delicate.

get_configuration_data();

build_reduce_modules r37_base_modules;

% Now I want to do a cold-start so that I can create a sensible
% image for use in the subsequent build steps. This image should not
% contain ANYTHING extraneous.

symbolic restart!-csl nil;

(setq !*savedef (lessp (cdr (assoc 'c!-code lispsystem!*)) 20))

(cond ((null !*savedef) (load!-module 'user)))

(load!-module 'cslcompat)

(setq !*comp nil)

(load!-module 'module)            % Definition of load_package, etc.

(load!-module 'cslprolo)          % CSL specific code.

(setq loaded!-packages!* '(cslcompat user cslprolo))

% NB I will re-load the "patches" module when REDUCE is started
% if there is a version newer than the one I load up here. Note that
% if there had not been a "patches.red" file I will not have a module to load
% here.

(cond
   ((modulep 'patches) (load!-module 'patches)))

(load!-package 'rlisp)

(load!-package 'cslrend)

(load!-package 'poly)

(load!-package 'arith)

(load!-package 'alg)

(load!-package 'mathpr)

(load!-package 'entry)

(write!-help!-module "../util/r37.inf" nil)

(load!-module 'cslhelp)

(setq version!* "REDUCE 3.7")

(initreduce)

(setq date!* "15-Jan-99")

(setq no_init_file nil)

(checkpoint 'begin (bldmsg "%w, %w ..." version!* date!*))

(setq no_init_file t)

(begin)

%
% See the fairly length comments given a bit earlier about the
% delicacy of the next few lines!
%

symbolic;

load!-module 'remake;

get_configuration_data();

build_reduce_modules r37_extra_modules;

% At this stage I have a complete workable REDUCE. If built using a
% basic CSL (I call it "slowr37" here)  nothing has been compiled into C
% (everything is bytecoded), and it is big because it has retained all
% Lisp source code in the image file. If however I built using a version
% of CSL ("r37") that did have things compiled into C then these will
% be exploited and the original Lisp sourtce will be omitted from the
% image, leaving a production version.

bye;




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