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gcc-papermario/vmsconfig.com
Ethan Roseman 57261bd1c1 Initial commit of GCC 2.8.1
2020-09-20 21:06:00 -04:00

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$ !
$ ! Set up to compile GCC on VMS.
$ !
$! Set the def dir to proper place for use in batch. Works for interactive too.
$flnm = f$enviroment("PROCEDURE") ! get current procedure name
$set default 'f$parse(flnm,,,"DEVICE")''f$parse(flnm,,,"DIRECTORY")'
$ !
$set symbol/scope=(nolocal,noglobal)
$if f$trnlnm("IFILE$").nes."" then close/noLog ifile$
$ !
$ echo = "write sys$output"
$ !
$ arch_indx = 1 + ((f$getsyi("CPU").ge.128).and.1) ! vax==1, alpha==2
$ arch = f$element(arch_indx,"|","|vax|alpha|")
$ !
$ if f$search("config.h") .nes. "" then delete config.h.*
$ copy [.config.'arch']xm-vms.h []config.h
$ echo "Linked `config.h' to `[.config.''arch']xm-vms.h'."
$ !
$ if f$search("tconfig.h") .nes. "" then delete tconfig.h.*
$ create []tconfig.h
$DECK
/* tconfig.h == config.h :: target and host configurations are the same */
#include "config.h"
$EOD
$ echo "Created `tconfig.h'.
$ !
$ if f$search("hconfig.h") .nes. "" then delete hconfig.h.*
$ create []hconfig.h
$DECK
/* hconfig.h == config.h :: host and target configurations are the same */
#include "config.h"
$EOD
$ echo "Created `hconfig.h'.
$ !
$ if f$search("tm.h") .nes. "" then delete tm.h.*
$!! copy [.config.'arch']vms.h []tm.h
$ edit/tpu/nojournal/nosection/nodisplay/command=sys$input -
[.config.'arch']vms.h /output=[]tm.h
$DECK
!
! Copy file, changing lines of the form
! #include "vax/*"
! or
! #include "alpha/*"
! into
! #include "config-*"
!
file := CREATE_BUFFER("file", GET_INFO(COMMAND_LINE, "file_name"));
targ := LINE_BEGIN & '#include' & SPAN(ASCII(32)+ASCII(9))
& '"' & ('vax' | 'alpha') & '/';
rang := CREATE_RANGE(BEGINNING_OF(file), END_OF(file));
LOOP
incl := SEARCH_QUIETLY(targ, FORWARD, EXACT, rang);
EXITIF incl = 0;
POSITION(BEGINNING_OF(incl));
ERASE(incl);
COPY_TEXT('#include "config-');
rang := CREATE_RANGE(END_OF(incl), END_OF(file));
ENDLOOP;
WRITE_FILE(file, GET_INFO(COMMAND_LINE, "output_file"));
QUIT
$EOD
$ echo "Generated `tm.h' from `[.config.''arch']vms.h'."
$ !
$ !crude hack to allow compiling from [.cp] subdirectory
$ if f$search("config-''arch'.h") .nes. "" then delete config-'arch'.h;*
$ copy [.config.'arch']'arch'.h []config-'arch'.h
$ echo "Linked `config-''arch'.h' to `[.config.''arch']''arch'.h' for `tm.h'."
$ !
$ call make_lang_incl "options.h"
$ !
$ call make_lang_incl "specs.h"
$ !
$ if f$search("''arch'.md") .nes. "" then delete 'arch'.md;*
$ copy [.config.'arch']'arch'.md []'arch'.md
$ echo "Copied `''arch'.md' from `[.config.''arch']''arch'.md'."
$ !
$ if f$search("aux-output.c") .nes. "" then delete aux-output.c.*
$ copy [.config.'arch']'arch'.c []aux-output.c
$ echo "Linked `aux-output.c' to `[.config.''arch']''arch'.c'.
$ !
$!
$!
$! Create the file version.opt, which helps identify the executable.
$!
$search version.c version_string,"="/match=and/output=t.tmp
$open ifile$ t.tmp
$read ifile$ line
$close ifile$
$delete t.tmp;
$line=f$element(1,"""",line) !extract the portion between 1st & 2nd quotes
$! Format of 'line' is "name-nn.nn.nn[.nn] [date text]" (without the quotes).
$! We want "name-nn.nn.nn[.nn][-date]"; "-date" suffix is optional.
$id = f$element(1,"-",line) !strip "name-" prefix
$if id.eqs."-" then id = line !no prefix found?
$id = f$element(0," ",id) + "-" + f$element(1," ",id) !first two tokens
$id = id - "- " !in case 2nd token was empty
$if f$length(id).gt.15 then id = f$extract(0,15,id) !length limitation
$!
$open/write ifile$ version.opt
$write ifile$ "ident="+""""+id+""""
$close ifile$
$purge version.opt
$!
$!
$! create linker options files that lists all of the components for all
$! possible compilers. We do this by editing the file Makefile.in, and
$! generating the relevant files from it.
$!
$!
$! Make a copy of the makefile if the sources are on a disk that is NFS
$! mounted on a unix machine.
$if f$search("Makefile.in").eqs."" .and. f$search("$M$akefile.in").nes."" -
then copy $M$akefile.in Makefile.in
$! This should be automated across all front-end subdirectories.
$! For now, it's hardcoded.
$if f$search("[.cp]Makefile.in").eqs."" .and. f$search("[.cp]$M$akefile.in").nes."" -
then copy [.cp]$M$akefile.in [.cp]Makefile.in
$!
$!
$echo "Now processing Makefile.in to generate linker option files."
$edit/TPU/noJournal/noSection/noDisplay/Command=sys$input: Makefile.in -
/Start_Position=('arch_indx') ! 1 for vax, 2 for alpha
!!
VARIABLE makefile_buf, opt_file_buf, complist_buf, extra_compilers; ! Globals.
VARIABLE arch; ! String 'vax' or 'alpha', set in configure_makefile().
!!
PROCEDURE process_makefile( )
!
! Interpret Makefile.in and subsidiary Make-lang.in templates.
!
LOCAL range1, cmark, makefilename;
makefilename := GET_INFO (COMMAND_LINE, 'FILE_NAME'); ! "Makefile.in"
makefile_buf := CREATE_BUFFER ("makefile", makefilename);
opt_file_buf := CREATE_BUFFER ("opt_file");
complist_buf := CREATE_BUFFER ("complist");
extra_compilers := CREATE_ARRAY;
!
SET (NO_WRITE, makefile_buf, ON); ! Used as workspace; don't save it.
SET (OUTPUT_FILE, complist_buf, "compilers.list");
!
! Make some textual substitutions.
!
configure_makefile ();
!
! Collect a list of supported compilers (``COMPILERS=xxx'' macro).
!
identify_compilers ();
!
! Plus other known compilers described by Make-lang.in makefile fragments.
! Add new entries as needed; args are (target name, subdirectory name).
!
additional_compiler ("cc1plus", "cp");
!
WRITE_FILE (complist_buf); ! Now save "compilers.list".
!
! Add to this list, as required. The file "Makefile.in" is searched for
! a tag that looks like "LINE_BEGIN + 'tag + (optional space) + "="".
! The contents are assumed to be a list of object files, and from this
! list a VMS linker options file is generated.
!
generate_option_file ("OBJS", "=", "independent.opt");
generate_option_file ("LIB2FUNCS", "=", "libgcc2.list");
generate_option_file ("CXX_LIB2FUNCS", "=", "libgcc2-cxx.list");
generate_option_file ("BC_ALL", "=", "bc_all.list");
generate_option_file ("BI_OBJ", "=", "bi_all.opt");
!
! Now change OBJS in the Makefile, so each language specific options file
! does not pick up all of the language independent files.
!
POSITION (BEGINNING_OF (makefile_buf));
COPY_TEXT ("OBJS="); ! New copy with empty value, seen before real OBJS.
SPLIT_LINE;
!
! Lastly, process each compiler-specific object dependency list.
!
POSITION (BEGINNING_OF (complist_buf));
LOOP
cmark := MARK (NONE);
EXITIF (cmark = END_OF (complist_buf));
! The current line contains the name of a compiler target, such as "cc1".
MESSAGE (CURRENT_LINE); ! Give some interactive feedback.
generate_option_file (CURRENT_LINE, ":", CURRENT_LINE + "-objs.opt");
POSITION (cmark);
MOVE_VERTICAL (1); ! Go to the next line.
ENDLOOP;
ENDPROCEDURE; !process_makefile
!!
PROCEDURE process_objc_lib( )
!
! Interpret objc/Makefile, after finishing the top makefile.
!
ON_ERROR
[TPU$_OPENIN]:
MESSAGE ("Cannot load objc/Makefile for ""ObjClib""; skipping it.");
RETURN;
ENDON_ERROR;
ERASE (makefile_buf); !discard top Makefile
POSITION (END_OF (makefile_buf));
READ_FILE ("[.objc]Make-lang.in"); !load objc one
MESSAGE ("objclib");
pat_replace (ASCII(9), " "); !change any <tab> to <space>
generate_option_file ("OBJC_O", "=", "objc-objs.opt");
POSITION (BEGINNING_OF (makefile_buf));
! Join any continuation lines; we want the header list to be one line.
pat_replace ("\" & LINE_END, );
generate_option_file ("OBJC_H", "=", "objc-hdrs.list");
ENDPROCEDURE; !process_objc_lib
!!
PROCEDURE configure_makefile( )
!
! Plug in some values normally handled by `configure'. Rather than
! replacing the dummy entries, insert the real entries before them.
!
IF (GET_INFO (COMMAND_LINE, 'START_RECORD') <> 2) THEN
arch := 'vax';
ELSE
arch := 'alpha';
ENDIF;
POSITION (BEGINNING_OF (makefile_buf));
COPY_TEXT ("target=" + arch + "-vms"); SPLIT_LINE;
COPY_TEXT ("out_file=aux-output.c"); SPLIT_LINE; ! 'arch'/'arch'.c
COPY_TEXT ("out_object_file=aux-output.o"); SPLIT_LINE; ! aux-output.obj
COPY_TEXT ("md_file=" + arch + ".md"); SPLIT_LINE; ! 'arch'/'arch'.md
COPY_TEXT ("tm_file=tm.h"); SPLIT_LINE; ! 'arch'/tm-vms.h
pat_replace ("@" &
SPAN("abcdefghijklmnopqrstuvwxyz_ABCDEFGHIJKLMNOPQRSTUVWXYZ#~0123456789")
& "@", ); ! strip `configure' dummy values
ENDPROCEDURE; !configure_makefile
!!
PROCEDURE identify_compilers( )
!
! Retrieve the list of supported compilers from Makefile.in, and put them
! into file "compilers.list", one per line, for subsequent access from DCL.
!
LOCAL range1;
! Strip most comments from the makefile, to speed up subsequent processing.
POSITION (BEGINNING_OF (makefile_buf));
pat_replace (LINE_BEGIN & "#" & REMAIN & LINE_END, );
!# ! Convert directory references to VMS syntax (actually, just strip it).
!# pat_replace (" $(srcdir)/", " ");
! Look up the ``COMPILERS=cc1 xyzzy'' Makefile macro and put
! its ``cc1 xyzzy'' value into the compilers buffer.
POSITION (BEGINNING_OF (complist_buf));
!#--at some point we may want to add this--
!# recursive_fetch_tag ("CCCP", "="); ! Include the preprocessor.
!# POSITION (END_OF (complist_buf));
recursive_fetch_tag ("COMPILERS", "=");
! Convert all spaces into newlines, then remove any blank lines.
pat_replace (SPAN(" "), LINE_END);
pat_replace (LINE_BEGIN & LINE_END, );
ENDPROCEDURE; !identify_compilers
!!
PROCEDURE additional_compiler( cname, subdir )
!
! Load Make-lang.in for compiler CNAME from SUBDIR and append it to the
! end of Makefile.in's buffer. Add CNAME to the "compilers.list" buffer.
!
ON_ERROR
! Don't abort if user removes the supporting subdirectory for a
! language she's not interested in.
[TPU$_OPENIN]:
MESSAGE ("Cannot load " + subdir + "/Make-lang.in for "
+ '"' + cname + '"' + "; skipping it.");
RETURN;
ENDON_ERROR;
POSITION (END_OF (makefile_buf));
SPLIT_LINE; ! Separate with a blank line.
READ_FILE ("[." + subdir + "]Make-lang.in"); ! Load Makefile fragment.
! Make sure that $(xxx_OTH_SRCS) expands to empty string by renaming $(it)
pat_replace ("_OTH_SRCS)", "_OTH_SRCS_dummy_)");
! Convert subdirectory references into VMS syntax.
pat_replace ("$(srcdir)/" + subdir + "/", "[." + subdir + "]");
! Temporary? hack for cp/Make-lang.in's mishandling of "input.c".
IF (subdir = 'cp') THEN
pat_replace ("[.cp]input.c", ); ! Discard this text.
ENDIF;
! Add this name to compilers.list.
POSITION (END_OF (complist_buf));
COPY_TEXT (cname);
! Make array entry indexed by compiler's file name; its value is arbitrary.
extra_compilers{cname} := subdir;
ENDPROCEDURE; !additional_compiler
!!
PROCEDURE generate_option_file( tag_name, punct, outfile_name )
!
! Produce a file listing the names of particular object files, for use
! as input to the linker and also for use in finding source names by
! make-cc1.com. Generally, any name suffix will be suppressed.
!
LOCAL range1, range2;
POSITION (BEGINNING_OF (opt_file_buf));
recursive_fetch_tag (tag_name, punct);
! First fix up for subdirectory/Make-lang.in.
IF (pat_replace ("stamp-objlist" & (SPAN(" ")|LINE_END), " ") > 0) THEN
recursive_fetch_tag ("stamp-objlist", ":");
ENDIF;
! Now fix up a few things in the output buffer.
pat_replace (("bytecode"|"Makefile") & (SPAN(" ")|LINE_END), " ");
!# FILL (CURRENT_BUFFER, " ", 1, 80, 0); ! Condense things a bit.
pat_replace ("." & ("o"|"c"|"y") & ((SPAN(" ")&LINE_END)|LINE_END), LINE_END);
pat_replace ("." & ("o"|"c"|"y") & SPAN(" "), ",");
pat_replace (".h" & (SPAN(" ")|LINE_END), ".h,");
! Remove trailing commas, if present.
pat_replace ("," & ((SPAN(" ")&LINE_END)|LINE_END), LINE_END);
! Get rid of spaces and blank lines.
pat_replace (SPAN(" "), LINE_END);
pat_replace (LINE_BEGIN & LINE_END, );
! Second fix up for subdirectory/Make-lang.in;
! avoid "sticky defaults" when linker processes the resulting options file.
IF (extra_compilers{outfile_name - "-objs.opt"} <> TPU$K_UNSPECIFIED) THEN
POSITION (BEGINNING_OF (opt_file_buf));
range1 := CREATE_RANGE (MARK (NONE), END_OF (CURRENT_BUFFER), NONE);
LOOP
range2 := SEARCH_QUIETLY (LINE_BEGIN | ",", FORWARD, EXACT, range1);
EXITIF (range2 = 0);
POSITION (BEGINNING_OF (range2));
IF (CURRENT_CHARACTER = ",") THEN MOVE_HORIZONTAL (1); ENDIF;
! If it's not already "[.subdir]name", explicitly make it "[]name".
IF (CURRENT_CHARACTER <> "[") THEN COPY_TEXT ("[]"); ENDIF;
MOVE_HORIZONTAL (1);
MODIFY_RANGE (range1, MARK (NONE), END_OF (range1));
ENDLOOP;
ENDIF;
! Now write the output file.
SET (OUTPUT_FILE, opt_file_buf, outfile_name);
WRITE_FILE (opt_file_buf);
ERASE (opt_file_buf); ! Clear buffer out for next opt_file pass.
ENDPROCEDURE; !generate_option_file
!!
PROCEDURE recursive_fetch_tag( tag_n, punct )
!
! Look up TAG_N, copy it to OPT_FILE_BUF, and then translate any $(...)
! definitions that appear. The translation is put at the current point.
!
LOCAL mark1, mark2, range1, tag_range, tag_string;
fetch_tag (tag_n, punct);
! Substitute any makefile symbols $(...).
POSITION (BEGINNING_OF (CURRENT_BUFFER));
LOOP
range1 := SEARCH_QUIETLY ("$(" &
SPAN("abcdefghijklmnopqrstuvwxyz_ABCDEFGHIJKLMNOPQRSTUVWXYZ#~0123456789")
& ")", FORWARD, EXACT);
EXITIF (range1 = 0);
POSITION (BEGINNING_OF (range1));
MOVE_HORIZONTAL (2); ! Past opening "$(".
mark1 := MARK (NONE);
POSITION (END_OF (range1));
MOVE_HORIZONTAL (-1); ! In front of closing ")".
mark2 := MARK (NONE);
tag_range := CREATE_RANGE (mark1, mark2, NONE);
POSITION (END_OF (range1));
tag_string := STR (tag_range);
ERASE (range1);
fetch_tag (tag_string, "=");
POSITION (BEGINNING_OF (CURRENT_BUFFER));
ENDLOOP;
ENDPROCEDURE; !recursive_fetch_tag
!!
PROCEDURE fetch_tag( tag_n, punct )
!
! Looks up the translation of a tag, and inserts it at the current location
! in the buffer.
!
LOCAL mark0, mark1, mark2, range2;
mark0 := MARK (NONE); ! Remember where we started; restore before return.
POSITION (BEGINNING_OF (makefile_buf));
! The tag definition always starts in the first column, and might have
! optional space(es) before "=" or ":" punctuation.
range2 := SEARCH_QUIETLY (LINE_BEGIN & tag_n & ((SPAN(" ") & punct) | punct),
FORWARD, EXACT);
IF (range2 = 0) THEN
POSITION (mark0);
RETURN;
ENDIF;
POSITION (END_OF (range2));
MOVE_HORIZONTAL (1); ! Move beyond "TAG=".
mark1 := MARK (NONE);
POSITION (BEGINNING_OF (range2));
LOOP
MOVE_VERTICAL (1);
MOVE_HORIZONTAL (-2);
EXITIF (CURRENT_CHARACTER <> "\");
ERASE_CHARACTER (1);
MOVE_HORIZONTAL (1);
ENDLOOP;
MOVE_HORIZONTAL (1);
mark2 := MARK (NONE);
range2 := CREATE_RANGE (mark1, mark2, NONE);
POSITION (mark0);
IF (LENGTH (range2) <> 0) THEN
COPY_TEXT (range2);
ENDIF;
ENDPROCEDURE; !fetch_tag
!!
PROCEDURE pat_replace( oldstring, newstring )
!
! Replace all occurrences of a pattern.
!
LOCAL range1, range2, kill_it, count;
count := 0;
kill_it := (GET_INFO (newstring, 'TYPE') = UNSPECIFIED); ! Omitted arg.
range1 := CREATE_RANGE (BEGINNING_OF (CURRENT_BUFFER),
END_OF (CURRENT_BUFFER), NONE);
LOOP
range2 := SEARCH_QUIETLY (oldstring, FORWARD, EXACT, range1);
EXITIF (range2 = 0);
count := count + 1;
POSITION (BEGINNING_OF (range2));
ERASE (range2);
IF (newstring = LINE_END) THEN
SPLIT_LINE;
ELSE IF (NOT kill_it) THEN
COPY_TEXT (newstring);
ENDIF; ENDIF;
MODIFY_RANGE (range1, MARK (NONE), END_OF (range1));
ENDLOOP;
RETURN count;
ENDPROCEDURE; !pat_replace
!!
!
! This is the main routine.
!
process_makefile ();
process_objc_lib (); !this uses a different makefile
QUIT; ! All done; don't write any modified buffers.
!!
$ echo ""
$!
$! Remove excessive versions of the option files...
$!
$ purge *.opt,*.list
$!
$!
$!
$ if f$search("config.status") .nes. "" then delete config.status.*
$ create config.status
$ open/append ifile$ config.status
$ write ifile$ "Links are now set up for use with a ''arch' running VMS."
$ close ifile$
$ type config.status
$ echo ""
$!
$ exit
$
$!
$! Construct a header file based on subdirectory contents
$!
$make_lang_incl: subroutine
$ if f$search(p1).nes."" then delete 'p1';*
$ create 'p1' !empty file with ordinary text-file attributes
$ open/Append ifile$ 'p1'
$ write ifile$ "/* ''p1' */"
$ hfile = f$search("[]''p1'")
$ topdir = f$parse(hfile,,,"DIRECTORY") - "]"
$lang_incl_loop:
$ hfile = f$search("[.*]lang-''p1'")
$ if hfile.eqs."" then goto lang_incl_done
$ dir = f$parse(hfile,,,"DIRECTORY") - "]"
$! convert absolute path to relative one, yielding "[.subdir]"
$ dir = "[" + f$edit(dir - topdir,"LOWERCASE") + "]"
$ write ifile$ "#include ""''dir'lang-''p1'"""
$ goto lang_incl_loop
$lang_incl_done:
$ close ifile$
$ echo "Created `''p1''."
$ endsubroutine !make_lang_incl
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