1 % (c) The GRASP/AQUA Project, Glasgow University, 1992-1997
4 This is the driver script for the Glasgow Haskell compilation system.
5 It is written in \tr{perl}. The first section includes a long
6 ``usage'' message that describes how the driver is supposed to work.
8 %************************************************************************
10 \section[Driver-usage]{Usage message}
12 %************************************************************************
15 ($Pgm = $0) =~ s|.*/||;
16 $ShortUsage = "\nUsage: For basic information, try the `-help' option.\n";
17 $LongUsage = "\n" . <<EOUSAGE;
18 Use of the Glorious Haskell Compilation System driver:
20 $Pgm [command-line-options-and-input-files]
22 ------------------------------------------------------------------------
23 This driver ($Pgm) guides each input file through (some of the)
24 possible phases of a compilation:
26 - unlit: extract code from a "literate program"
27 - hscpp: run code through the C pre-processor (if -cpp flag given)
28 - hsc: run the Haskell compiler proper
29 - gcc: run the C compiler (if compiling via C)
30 - as: run the assembler
33 For each input file, the phase to START with is determined by the
35 - .lhs literate Haskell: unlit
36 - .hs illiterate Haskell: hsc
37 - .hc C from the Haskell compiler: gcc
38 - .c C not from the Haskell compiler: gcc
39 - .s assembly language: as
40 - other passed directly to the linker: ld
42 If no files are given on the command line, input is taken from
43 standard input, and processing is as for an .hs file. (All output is
44 to stdout or stderr, however).
46 The phase at which to STOP processing is determined by a command-line
48 -E stop after generating preprocessed, de-litted Haskell (used in conjunction with -cpp)
49 -C stop after generating C (.hc output)
50 -S stop after generating assembler (.s output)
51 -c stop after generating object files (.o output)
53 Other commonly-used options are:
55 -O An `optimising' package of compiler flags, for faster code
57 -prof Compile for cost-centre profiling
58 (add -auto for automagic cost-centres on top-level functions)
60 -fglasgow-exts Allow Glasgow extensions (unboxed types, etc.)
62 -H14m Increase compiler's heap size
64 -M Output the Makefile rules recording the
65 dependencies of a list of Haskell files.
66 (ghc driver script calls upon the help of a
67 compatible mkdependHS script to do the actual
70 The User's Guide has more information about GHC's *many* options.
72 Given the above, here are some TYPICAL invocations of $Pgm:
74 # compile a Haskell module to a .o file, optimising:
76 # link three .o files into an executable called "test":
77 % $Pgm -o test Foo.o Bar.o Baz.o
78 # compile a Haskell module to C (a .hc file), using a bigger heap:
79 % $Pgm -C -H16m Foo.hs
80 # compile Haskell-produced C (.hc) to assembly language:
82 ------------------------------------------------------------------------
86 %************************************************************************
88 \section[Driver-init]{Initialisation}
90 %************************************************************************
92 The driver script need to be told where to find these executables, so
93 in the course of building the driver `executable', make-variables holding
94 these are prepended to the de-litted version of this file. The variables are:
99 HOSTPLATFORM TARGETPLATFORM
101 ProjectName ProjectVersion ProjectVersionInt ProjectPatchLevel
103 HscMajorVersion HscMinorVersion CcMajorVersion CcMinorVersion
107 bindir libdir libexecdir datadir
111 GHC_LIB_DIR GHC_RUNTIME_DIR GHC_UTILS_DIR GHC_INCLUDE_DIR
113 GHC_OPT_HILEV_ASM GhcWithNativeCodeGen
115 GHC_UNLIT GHC_HSCPP GHC_HSC GHC_SYSMAN
119 WAY_*_NAME WAY_*_REAL_OPTS
127 Establish what executables to run for the various phases, what the
128 default options are for those phases, and other similar boring stuff.
131 select(STDERR); $| = 1; select(STDOUT); # no STDERR buffering, please.
133 $TargetPlatform = $TARGETPLATFORM;
135 $TopPwd = "${TOP_PWD}";
136 $InstBinDirGhc = "${bindir}";
137 $InstLibDirGhc = "${libdir}";
139 # Normally the same as InstLibDirGhc, but we accommodate
140 # for it being separate.
142 $InstLibExecDirGhc = "${libexecdir}";
143 $InstDataDirGhc = "${datadir}";
145 $Status = 0; # just used for exit() status
148 # set up signal handler
149 sub quit_upon_signal { &tidy_up_and_die(1, ''); }
150 $SIG{'INT'} = 'quit_upon_signal';
151 $SIG{'QUIT'} = 'quit_upon_signal';
153 # where to get "require"d .prl files at runtime (poor man's dynamic loading)
154 # (use LIB, not DATA, because we can't be sure of arch-independence)
155 @INC = ( ( $INSTALLING ) ? $InstLibDirGhc
156 : "$TopPwd/${CURRENT_DIR}" );
158 if ( $ENV{'TMPDIR'} ) { # where to make tmp file names
159 $Tmp_prefix = ($ENV{'TMPDIR'} . "/ghc$$");
161 print STDERR "TMPDIR has not been set to anything useful!\n" if (${TMPDIR} eq '');
162 $Tmp_prefix ="${TMPDIR}/ghc$$"; # TMPDIR set via Makefile when booting..
163 $ENV{'TMPDIR'} = ${TMPDIR}; # set the env var as well
166 # Some shells run into real trouble when command line and environment
167 # gets big (e.g., cmd lines of >4K to /bin/sh causes havoc on our
168 # Solaris-2.5.1 boxes - even though sysconf(_SC_ARG_MAX) reports 1M ...).
169 # To work around any such */bin/sh* problems, we will scribble such
170 # awfully long command lines into a temp file and exec that temp file
171 # with $(REAL_SHELL) (don't use the SHELL variable directly as this
172 # will normally get you the wrong thing when the driver is invoked
173 # from within `make'). If the REAL_SHELL variable isn't set, you'll
174 # get SHELL. This is all a terrible hack. (in case you hadn't reached
175 # the same conclusion by now :-)
179 if ( ! $ENV{'REAL_SHELL'} ) {
180 $ENV{'REAL_SHELL'} = $ENV{'SHELL'};
183 @Files_to_tidy = (); # files we nuke in the case of abnormal termination
185 $Unlit = ( $INSTALLING ) ? "$InstLibExecDirGhc/unlit"
186 : "$TopPwd/${CURRENT_DIR}/${GHC_UNLIT}";
190 $Diff = $CONTEXT_DIFF;
195 $HsCpp = # but this is re-set to "cat" (after options) if -cpp not seen
196 ( $INSTALLING ) ? "$InstLibExecDirGhc/hscpp"
197 : "$TopPwd/${CURRENT_DIR}/${GHC_HSCPP}";
200 $HsC = ( $INSTALLING ) ? "$InstLibExecDirGhc/hsc"
201 : "$TopPwd/${CURRENT_DIR}/${GHC_HSC}";
203 # For PVM fiends only
204 $SysMan = ( $INSTALLING ) ? "$InstLibExecDirGhc/SysMan"
205 : "$TopPwd/${CURRENT_DIR}/${GHC_SYSMAN}";
210 # HsC_rts_flags: if we want to talk to the LML runtime system
211 # NB: we don't use powers-of-2 sizes, because this may do
212 # terrible things to cache behavior.
214 $Specific_heap_size = 6 * 1000 * 1000;
215 $Specific_stk_size = 1000 * 1000;
216 $Scale_sizes_by = 1.0;
220 The variables set by @setupOptFlags@ represent parts of the
221 -O/-O2/etc ``templates,'' which are filled in later, using these.
222 These are the default values, which may be changed by user flags.
226 $Oopt_MaxSimplifierIterations = '-fmax-simplifier-iterations4';
227 $Oopt_PedanticBottoms = '-fpedantic-bottoms'; # ON by default
228 $Oopt_FinalStgProfilingMassage = '';
230 $Oopt_DoSpecialise = '-fspecialise';
231 $Oopt_FoldrBuild = 0; # *Off* by default!
232 $Oopt_UsageSPInf = ''; # Off by default
233 } # end of setupOptFlags
235 # Assign defaults to these right away.
239 Things to do with C compilers/etc:
241 (added -Wimplicit: implicit prototypes cause very hard-to-find
242 problems, so I'm turing on the warnings -- SDM 4/5/98)
245 $CcRegd = $GHC_OPT_HILEV_ASM;
246 @CcBoth_flags = ('-S','-Wimplicit'); # flags for *any* C compilation
250 # those for all files,
251 # those only for .c files;
252 # those only for .hc files
255 @CcRegd_flags_c = ();
256 @CcRegd_flags_hc = ();
258 $As = ''; # "assembler" is normally GCC
261 $Lnkr = ''; # "linker" is normally GCC
265 # 'nm' is used for consistency checking (ToDo: mk-world-ify)
266 # ToDo: check the OS or something ("alpha" is surely not the crucial question)
267 $Nm = ($TargetPlatform =~ /^alpha-/) ? 'nm -B' : 'nm';
270 Warning packages that are controlled by -W and -Wall. The 'standard'
271 warnings that you get all the time are
273 -fwarn-overlapping-patterns
274 -fwarn-missing-methods
275 -fwarn-duplicate-exports
277 these are turned off by -Wnot.
280 @StandardWarnings = ('-fwarn-overlapping-patterns',
281 '-fwarn-missing-methods',
282 '-fwarn-duplicate-exports');
283 @MinusWOpts = (@StandardWarnings,
284 '-fwarn-unused-binds',
285 '-fwarn-unused-matches',
286 '-fwarn-incomplete-patterns',
287 '-fwarn-unused-imports');
288 @MinusWallOpts = (@MinusWOpts,
289 '-fwarn-type-defaults',
290 '-fwarn-name-shadowing',
291 '-fwarn-missing-signatures');
294 What options \tr{-user-setup-a} turn into (user-defined ``packages''
296 of options). Note that a particular user-setup implies a particular
297 Prelude ({\em including} its interface file(s)).
299 $BuildTag = ''; # default is sequential build w/ Appel-style GC
301 %BuildDescr = (# system ways begin
302 '', 'Normal Sequential',
304 '_t', "Ticky-ticky Profiling",
305 '_u', "Unregisterised",
325 '_B', "$WAY_B_NAME" );
327 # these are options that are "fed back" through the option processing loop
331 '_a', "$WAY_a_REAL_OPTS",
332 '_b', "$WAY_b_REAL_OPTS",
333 '_c', "$WAY_c_REAL_OPTS",
334 '_d', "$WAY_d_REAL_OPTS",
335 '_e', "$WAY_e_REAL_OPTS",
336 '_f', "$WAY_f_REAL_OPTS",
337 '_g', "$WAY_g_REAL_OPTS",
338 '_h', "$WAY_h_REAL_OPTS",
339 '_i', "$WAY_i_REAL_OPTS",
340 '_j', "$WAY_j_REAL_OPTS",
341 '_k', "$WAY_k_REAL_OPTS",
342 '_l', "$WAY_l_REAL_OPTS",
343 '_m', "$WAY_m_REAL_OPTS",
344 '_n', "$WAY_n_REAL_OPTS",
345 '_o', "$WAY_o_REAL_OPTS",
346 '_A', "$WAY_A_REAL_OPTS",
347 '_B', "$WAY_B_REAL_OPTS",
350 '_p', "-fscc-profiling -DPROFILING -optc-DPROFILING",
351 '_t', "-fticky-ticky -DTICKY_TICKY -optc-DTICKY_TICKY",
352 '_u', "-optc-DNO_REGS -optc-DUSE_MINIINTERPRETER -fno-asm-mangling -funregisterised",
353 '_mp', "-fstack-check -fparallel -D__PARALLEL_HASKELL__ -optc-DPAR",
354 '_mg', "-fstack-check -fconcurrent -fgransim -D__GRANSIM__ -D__CONCURRENT_HASKELL__ -optc-DCONCURRENT -optc-DGRAN");
356 # where to look for interface files (system hi's, i.e., prelude and syslibs)
357 @SysImport_dir = ( $INSTALLING )
358 ? ( "$InstLibDirGhc/imports/std" )
359 : ( "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std" );
361 # We need to look in ghc/ and glaExts/ when searching for implicitly needed .hi files, but
362 # we should really *not* look there for explicitly imported modules.
364 $Haskell1Version = 5; # i.e., Haskell 1.4
367 # Cpp symbols defined when we're processing Haskell source.
371 , "-D__HASKELL1__=$Haskell1Version"
372 , "-D__GLASGOW_HASKELL__=$ProjectVersionInt"
374 , "-D__CONCURRENT_HASKELL__"
378 @SysLibrary_dir = ( ( $INSTALLING ) #-syslib things supplied by the system
380 : ( "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR"
381 , "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/gmp"
382 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std"
383 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std/cbits"
387 $TopClosureFile # defaults to 1.2 one; will be mangled later
389 # ( $INSTALLING) ? "$InstLibDirGhc/TopClosureXXXX.o"
390 # : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/main/TopClosureXXXX.o";
392 # make depend for Haskell
394 = ( $INSTALLING ) ? "$InstLibExecDirGhc/mkdependHS"
395 : "$TopPwd/$CURRENT_DIR/$GHC_UTILS_DIR/mkdependHS/mkdependHS";
397 @MkDependHS_flags = ();
399 # do_link flag should not be reset while rescanning the cmd-line.
401 $Specific_output_dir = ''; # set by -odir <dir>
402 $Specific_output_file = ''; # set by -o <file>; "-" for stdout
405 Function to initialise the per-compilation-unit globals that
406 are used to guide and control the invocation of the different phases.
409 sub initDriverGlobals {
411 # reset the following options:
412 # RTS flags to use while compiling
418 The optimisations/etc to be done by the compiler are {\em normally}
419 expressed with a \tr{-O} (or \tr{-O2}) flag, or by its absence.
422 $OptLevel = 0; # no -O == 0; -O == 1; -O2 == 2; -Ofile == 3
423 $MinusO2ForC = 0; # set to 1 if -O2 should be given to C compiler
424 $StolenX86Regs = 4; # **HACK*** of the very worst sort
429 # The SplitMarker is the string/character used to mark end of element
432 @Import_dir = ('.'); #-i things
433 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
435 @UserLibrary_dir= (); #-L things;...
436 @UserLibrary = (); #-l things asked for by the user
438 @SysLibrary = (); # will be built up as we go along
441 We are given a list of files with various presumably-known suffixes
442 (unknown-suffix files go straight to the linker). For each file, we
443 begin by assuming that we'll run every phase over it. However: (1)
444 global flags (\tr{-c}, \tr{-S}, etc.) tell us not to run any phase
445 past a certain point; and (2) the file's suffix tells us what phase to
446 start with. Linking is weird and kept track of separately.
448 Here are the initial defaults applied to all files:
450 $Cpp_flag_set = 0; # (hack)
451 $Only_preprocess_C = 0; # pretty hackish
452 $Only_preprocess_hc = 0; # ditto
453 $Only_generate_deps = 0; # ""
454 $Only_generate_dll = 0;
455 $PostprocessCcOutput = 0;
458 # static = 0 => produce code for DLLs (when compiling & linking.)
460 $Static = 0 if ($EnableWin32DLLs eq 'YES');
462 # native code-gen or via C?
463 $HaveNativeCodeGen = $GhcWithNativeCodeGen;
464 $HscOut = '-C='; # '-C=' ==> .hc output; '-S=' ==> .s output; '-N=' ==> neither
466 if ($HaveNativeCodeGen ne 'YES') && $TargetPlatform =~ /^(alpha)-/;
467 # TEMP: disable x86 & Sparc if $HaveNativeCodeGen && $TargetPlatform =~ /^(i386|alpha|sparc)-/;
468 $ProduceHi = '-hifile=';
474 $CollectingGCstats = 0;
475 $CollectGhcTimings = 0;
476 $DEBUGging = ''; # -DDEBUG and all that it entails (um... not really)
477 $PROFing = ''; # set to p or e if profiling
478 $PROFgroup = ''; # set to group if an explicit -Ggroup specified
479 $PROFauto = ''; # set to relevant hsc flag if -auto or -auto-all
480 $PROFcaf = ''; # set to relevant hsc flag if -caf-all
481 $PROFdict = ''; # set to relevant hsc flag if -auto-dicts
482 $PROFignore_scc = ''; # set to relevant parser flag if explicit sccs ignored
483 $UNPROFscc_auto = ''; # set to relevant hsc flag if forcing auto sccs without profiling
484 $TICKYing = ''; # set to t if compiling for ticky-ticky profiling
485 $PARing = ''; # set to p if compiling for PAR
486 $GRANing = ''; # set to g if compiling for GRAN
487 $UNREGing = ($GhcWithRegisterised eq 'YES') ? '' : 'u';
488 $Specific_hi_file = ''; # set by -ohi <file>; "-" for stdout
489 $Specific_dump_file = ''; # set by -odump <file>; "-" for stdout
490 $Using_dump_file = 0;
492 $Osuffix = ''; # default: use the normal suffix for that kind of output
494 $HiSuffix_prelude = '';
496 $Do_recomp_chkr = 0; # don't use the recompilatio checker unless asked
497 $Do_cc = -1; # a MAGIC indeterminate value; will be set to 1 or 0.
500 $Keep_hc_file_too = 0;
501 $Keep_s_file_too = 0;
502 $UseGhcInternals = 0; # if 1, may use GHC* modules
504 $DoAsmMangling = 1; # on by default, off by -fno-asm-mangling
506 $Dump_parser_output = 0;
508 $Dump_asm_splitting_info = 0;
509 $NoImplicitPrelude = 0;
510 # 1 => don't tell the linker to hoist in PrelMain.Main, as an
511 # external main is provided instead.
514 } # end of initDriverGlobals (Sigh)
516 # we split the argv passed to the driver into three:
521 # and files to be linked...
527 # cmd line options prefixing the unit we're compiling
532 We inject consistency-checking information into \tr{.hc} files (both
533 when created by the Haskell compiler and when compiled by the C
534 compiler), so that we can check that an executable is made from
535 consistently-built pieces. (The check is normally done just after
536 linking.) The checking is done by introducing/munging
537 \tr{what(1)}-style strings. Anyway, here are the relevant global
538 variables and their defaults:
540 $LinkChk = 0; # set to 0 if the link check should *not* be done
542 # major & minor version numbers; major numbers must always agree;
543 # minor disagreements yield a warning.
544 $HsC_major_version = $HscMajorVersion;
545 $HsC_minor_version = $HscMinorVersion;
546 $Cc_major_version = $CcMajorVersion;
547 $Cc_minor_version = $CcMinorVersion;
549 # options: these must always agree
550 $HsC_consist_options = ''; # we record, in this order:
551 # Build tag; debugging?
552 $Cc_consist_options = ''; # we record, in this order:
553 # Build tag; debugging?
556 %************************************************************************
558 \section[Driver-parse-argv]{Munge the command-line options}
560 %************************************************************************
562 Now slurp through the arguments.
565 &initDriverGlobals();
566 &splitCmdLine(@ARGV);
567 # Run through the cmd-line first time.
568 &processArgs(@Cmd_opts);
570 # Check to see if driver is only in the business
571 # to generate dependencies
572 if ( $Status == 0 && $Only_generate_deps ) {
574 push (@MkDependHS_flags, "-o$Osuffix") if $Osuffix;
575 push (@MkDependHS_flags, "-s$BuildTag") if $BuildTag;
576 # They're not (currently) needed, but we need to quote any -#include options
577 foreach (@Cmd_opts) {
578 s/-#include.*$/'$&'/g;
580 local($to_do) = "$MkDependHS @MkDependHS_flags @HsSourceCppOpts -- @Cmd_opts -- @Input_file" ;
581 &run_something($to_do, 'Haskell dependencies');
585 # ..or just to construct a (Haskell) DLL.
586 if ( $Status == 0 && $Only_generate_dll && $EnableWin32DLLs ) {
592 # if there are several input files,
593 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
594 # (except if linking, of course)
596 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
597 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
598 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
599 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
600 print STDERR "\tPerhaps the -odir option will do what you want.\n";
605 # check for various pathological -o and -odir combinations...
606 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
607 if ($Specific_output_file eq '-') {
608 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
610 } else { # amalgamate...
611 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
612 # ToDo: check we haven't got a junk name now...
613 $Specific_output_dir = ''; # reset
617 # crash and burn if there were errors
619 print STDERR $ShortUsage;
624 %************************************************************************
626 \section[Driver-post-argv-mangling]{Setup after reading options}
628 %************************************************************************
630 %************************************************************************
632 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
634 %************************************************************************
636 We come now to the default ``wads of options'' that are turned on by
637 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
638 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
641 The user can also specify his/her own list of options in a file; in
642 that case, the work is already done (see stuff about @minusO3@,
645 GHC allows very precise control of what happens during a compilation.
646 Core-to-Core and STG-to-STG passes can be run in any order, as many
647 times as you like. Individual transformations can be turned on or
650 Sadly, however, there are some interdependencies \& Things You Must
651 Not Do. Here is the list.
655 \item[\tr{-fspecialise}:]
656 The specialiser must have dependency-analysed input; but if you run
657 the simplifier to do this, you must not let it toss away unused
658 bindings! (The typechecker conveys some specialisation info via
659 ``unused'' bindings...)
661 \item[\tr{-ffloat-inwards}:]
662 Floating inwards should be done before strictness analysis, because
663 the latter will give better results.
665 \item[\tr{-fstatic-args}:]
666 The static-arguments-transformation pass {\em must} have the
667 simplifier run right after it.
669 \item[\tr{-fcalc-inlinings[12]}:]
670 Not required, but there may be slight gains by re-simplifying after
671 this is done. (You could then \tr{-fcalc-inlinings} again, just for
674 \item[\tr{-ffull-laziness}:]
675 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
676 that's run. (Um, well, howzabout the simplifier just once more...)
681 \item[\tr{-fupdate-analysis}:]
682 It really really wants to be the last STG-to-STG pass that is run.
687 sub setupOptimiseFlags {
689 # this pass-ordering sequence was agreed by Simon and Andr\'e
690 # (WDP 94/07, 94/11).
697 $Oopt_MaxSimplifierIterations,
701 $Oopt_FinalStgProfilingMassage
704 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
708 '-fdo-eta-reduction',
709 '-fdo-lambda-eta-expansion',
713 $Oopt_PedanticBottoms,
715 # initial simplify: mk specialiser happy: minimum effort please
719 '-finline-phase0', # Don't inline anything till full laziness has bitten
720 # In particular, inlining wrappers inhibits floating
721 # e.g. ...(case f x of ...)...
722 # ==> ...(case (case x of I# x# -> fw x#) of ...)...
723 # ==> ...(case x of I# x# -> case fw x# of ...)...
724 # and now the redex (f x) isn't floatable any more
725 '-fmax-simplifier-iterations2',
728 # Specialisation is best done before full laziness
729 # so that overloaded functions have all their dictionary lambdas manifest
730 ($Oopt_DoSpecialise) ? ( $Oopt_DoSpecialise, ) : (),
736 # # Run the simplifier before specialising, so that overloaded functions
737 # # look like f = \d -> ...
738 # # (Full laziness may lift out something hiding the \d
740 # '-fmax-simplifier-iterations1',
747 # Want to run with inline phase 1 after the specialiser to give
748 # maximum chance for fusion to work before we inline build/augment
749 # in phase 2. This made a difference in 'ansi' where an overloaded
750 # function wasn't inlined till too late.
751 $Oopt_MaxSimplifierIterations,
754 $Oopt_UsageSPInf, # infer usage information here in case we need it later.
755 # (add more of these where you need them --KSW 1999-04)
759 # Need inline-phase2 here so that build/augment get
760 # inlined. I found that spectral/hartel/genfft lost some useful
761 # strictness in the function sumcode' if augment is not inlined
762 # before strictness analysis runs
765 $Oopt_MaxSimplifierIterations,
775 $Oopt_MaxSimplifierIterations,
776 # No -finline-phase: allow all Ids to be inlined now
779 '-fcse', # CSE must immediately follow a simplification pass, because it relies
780 # on the no-shadowing invariant. See comments at the top of CSE.lhs
782 '-ffull-laziness', # nofib/spectral/hartel/wang doubles in speed if you
783 # do full laziness late in the day. It only happens
784 # after fusion and other stuff, so the early pass doesn't
785 # catch it. For the record, the redex is
786 # f_el22 (f_el21 r_midblock)
789 # Case-liberation for -O2. This should be after
790 # strictness analysis and the simplification which follows it.
794 # : "-fliberate-case -fsimplify [ $Oopt_FB_Support -ffloat-lets-exposing-whnf -ffloat-primops-ok -fcase-of-case -fdo-case-elim -fcase-merge -fdo-lambda-eta-expansion -freuse-con -flet-to-case $Oopt_PedanticBottoms $Oopt_MaxSimplifierIterations $Oopt_ShowSimplifierProgress ]" ),
796 # Final clean-up simplification:
800 $Oopt_MaxSimplifierIterations,
801 # No -finline-phase: allow all Ids to be inlined now
808 $Oopt_FinalStgProfilingMassage,
814 # SPECIAL FLAGS for -O2
816 '-fupdate-analysis', # virtually useless; relegated to -O2
823 Sort out what we're going to do about optimising. First, the @hsc@
824 flags and regular @cc@ flags to worry about:
826 if ( $OptLevel <= 0 ) {
828 # for this level, we tell the parser -fignore-interface-pragmas
829 push(@HsC_flags, '-fignore-interface-pragmas');
830 # and tell the compiler not to produce them
831 push(@HsC_flags, '-fomit-interface-pragmas');
833 &add_Hsc_flags( @HsC_minusNoO_flags );
834 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
836 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
838 &add_Hsc_flags( @HsC_minusO_flags );
839 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
840 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
841 # but it *is* useful in compiling the garbage collector.
843 } else { # -Ofile, then...
845 &add_Hsc_flags( @HsC_minusO3_flags );
846 push(@HsC_flags, $Oopt_FinalStgProfilingMassage) if $Oopt_FinalStgProfilingMassage;
848 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
851 } # setupOptimiseFlags
855 %************************************************************************
857 \subsection{Check for consistency, etc.}
859 %************************************************************************
861 Sort out @$BuildTag@, @$PROFing@, @$PARing@,
862 @$GRANing@, @$TICKYing@, @UNREGing@:
864 sub setupBuildFlags {
867 # PROFILING stuff after argv mangling:
869 # add -auto sccs even if not profiling !
870 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
873 push(@HsC_flags, $PROFauto) if $PROFauto;
874 push(@HsC_flags, $PROFcaf) if $PROFcaf;
875 push(@HsC_flags, $PROFdict) if $PROFdict;
877 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
879 # Ignore user sccs when auto annotating, but warn when doing so.
880 $PROFignore_scc = '-W' if $PROFauto;
882 #if ( $BuildTag ne '' ) {
883 # local($b) = $BuildDescr{$BuildTag};
884 # if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
885 # if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
886 # if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
888 # # ok to have a user-way profiling build
889 # # eval the profiling opts ... but leave user-way BuildTag
890 # if ($PROFing eq 'p') { &processArgs(split(' ', $SetupOpts{'_p'})); } # eval($EvaldSetupOpts{'_p'}); }
892 if ( $PROFing eq 'p' ) {
893 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
894 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
895 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
898 } elsif ( $PARing eq 'p' ) {
899 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
900 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
903 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
904 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
908 } elsif ( $GRANing eq 'g' ) {
909 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
912 } elsif ( $TICKYing eq 't' ) {
915 } elsif ( $UNREGing eq 'u' ) {
916 if ($GhcWithRegisterised eq 'YES') {
922 After the sanity checks, add flags to the necessary parts of the driver pipeline:
925 if ( $BuildTag ne '' ) { # something other than normal sequential...
927 local($Tag) = "${BuildTag}";
928 $Tag =~ s/_//; # move the underscore to the back
930 $HscOut = '-C='; # must go via C
931 &processArgs(split(' ', $SetupOpts{$BuildTag}));
932 # eval($EvaldSetupOpts{$BuildTag});
936 Decide what the consistency-checking options are in force for this run:
939 $HsC_consist_options = "${BuildTag},${DEBUGging}";
940 $Cc_consist_options = "${BuildTag},${DEBUGging}";
943 # Funny place to put it, but why not.
945 if ( $HiSuffix_prelude eq '' ) {
947 if ($CompilingPrelude) {
948 $HiSuffix_prelude = "$HiSuffix" if $CompilingPrelude;
950 local($Tag) = "${BuildTag}";
953 $Tag = "${Tag}_" if $Tag ne '';
954 $HiSuffix_prelude="${Tag}hi";
960 %************************************************************************
962 \subsection{Add on machine-specific C-compiler flags}
964 %************************************************************************
966 Shove on magical machine-specific options. We use \tr{unshift} to
967 stick them on the {\em front} of the arrays, so that ``later''
968 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
970 Note: a few ``always apply'' flags were set at the very beginning.
975 if ($TargetPlatform =~ /^alpha-/) {
976 unshift(@CcBoth_flags, ('-static'));
978 } elsif ($TargetPlatform =~ /^hppa/) {
979 unshift(@CcBoth_flags, ('-static'));
981 # We don't put in '-mlong-calls', because it's only
982 # needed for very big modules (sigh), and we don't want
983 # to hobble ourselves further on all the other modules
986 # [Dated comment (gcc-2.6.x?), -mlong-calls is no longer
987 # a supported gcc HPPA flag]
988 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
989 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
990 # (very nice, but too bad the HP /usr/include files don't agree.)
992 } elsif ($TargetPlatform =~ /^i386-/) {
993 # -fno-defer-pop : basically the same game as for m68k
995 # -fomit-frame-pointer : *must* in .hc files; because we're stealing
996 # the fp (%ebp) for our register maps.
998 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
999 unshift(@CcRegd_flags_hc, '-fomit-frame-pointer');
1000 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1002 unshift(@CcBoth_flags, ('-DDONT_WANT_WIN32_DLL_SUPPORT')) if ($Static);
1004 } elsif ($TargetPlatform =~ /^m68k-/) {
1005 # -fno-defer-pop : for the .hc files, we want all the pushing/
1006 # popping of args to routines to be explicit; if we let things
1007 # be deferred 'til after an STGJUMP, imminent death is certain!
1009 # -fomit-frame-pointer : *don't*
1010 # It's better to have a6 completely tied up being a frame pointer
1011 # rather than let GCC pick random things to do with it.
1012 # (If we want to steal a6, then we would try to do things
1013 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1015 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1016 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1017 # maybe gives reg alloc a better time
1018 # also: -fno-defer-pop is not sufficiently well-behaved without it
1020 } elsif ($TargetPlatform =~ /^mips-/) {
1021 unshift(@CcBoth_flags, ('-static'));
1023 } elsif ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1024 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1025 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1026 } elsif ($TargetPlatform =~ /^sparc-/) {
1028 } # end of setupMachOpts
1031 %************************************************************************
1033 \subsection{Set up for warnings}
1035 %************************************************************************
1037 Several warnings are turned on by default. These are supposed to be
1038 the 'I'm pretty sure you've made a mistake here' kind of warnings.
1039 The rest are turned on by the -W and -Wall options, or individually
1040 via their -fwarn and -fno-warn flags.
1043 sub setupWarningFlags {
1044 &add_Hsc_flags( @StandardWarnings );
1048 Same unshifting magic, but for special linker flags.
1050 The configure script determines whether the object file symbol tables
1051 have a leading underscore, and sets @LeadingUnderscore@ accordingly.
1052 (The driver script `sees' the setting of the @LeadingUnderscore@
1053 by having the Makefile prepend it).
1057 local($uscore) = ( ${LeadingUnderscore} eq 'YES' ) ? '_' : '';
1060 (($Ld_main) ? ( '-u', "${uscore}Main_" . $Ld_main . '_closure' ) : ()));
1062 # things that are referenced by the RTS - make sure that we pull 'em in
1064 ( '-u', "${uscore}PrelBase_Izh_static_info"
1065 ,'-u', "${uscore}PrelBase_Czh_static_info"
1066 ,'-u', "${uscore}PrelBase_Fzh_static_info"
1067 ,'-u', "${uscore}PrelBase_Dzh_static_info"
1068 ,'-u', "${uscore}PrelAddr_Azh_static_info"
1069 ,'-u', "${uscore}PrelAddr_Wzh_static_info"
1070 ,'-u', "${uscore}PrelAddr_I64zh_static_info"
1071 ,'-u', "${uscore}PrelAddr_W64zh_static_info"
1072 ,'-u', "${uscore}PrelStable_StablePtr_static_info"
1073 ,'-u', "${uscore}PrelBase_Izh_con_info"
1074 ,'-u', "${uscore}PrelBase_Czh_con_info"
1075 ,'-u', "${uscore}PrelBase_Fzh_con_info"
1076 ,'-u', "${uscore}PrelBase_Dzh_con_info"
1077 ,'-u', "${uscore}PrelAddr_Azh_con_info"
1078 ,'-u', "${uscore}PrelAddr_Wzh_con_info"
1079 ,'-u', "${uscore}PrelAddr_I64zh_con_info"
1080 ,'-u', "${uscore}PrelAddr_W64zh_con_info"
1081 ,'-u', "${uscore}PrelStable_StablePtr_con_info"
1082 ,'-u', "${uscore}PrelBase_False_static_closure"
1083 ,'-u', "${uscore}PrelBase_True_static_closure"
1084 ,'-u', "${uscore}PrelPack_unpackCString_closure"
1085 ,'-u', "${uscore}PrelException_stackOverflow_closure"
1086 ,'-u', "${uscore}PrelException_heapOverflow_closure"
1087 ,'-u', "${uscore}PrelException_NonTermination_static_closure"
1089 if (!$NoHaskellMain) {
1090 unshift (@Ld_flags,'-u', "${uscore}PrelMain_mainIO_closure");
1092 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1093 # sometimes we have lots of toc entries...
1094 # unshift(@Ld_flags, ('-Xlinker -bbigtoc -Xlinker -bnoquiet'));
1095 unshift(@Ld_flags, ('-Xlinker -bbigtoc'));
1099 } # end of setupLinkOpts
1103 %************************************************************************
1105 \subsection{Set up include paths and system-library enslurpment}
1107 %************************************************************************
1109 Now that we know what garbage-collector, etc., are required, we can
1110 finalise our list of libraries to slurp through, and generally Get
1115 # default includes must be added AFTER option processing
1116 if ( ! $INSTALLING ) {
1117 push (@Include_dir, "$TopPwd/${CURRENT_DIR}/${GHC_INCLUDE_DIR}");
1119 push (@Include_dir, "$InstLibDirGhc/includes");
1120 push (@Include_dir, "$InstLibDirGhc/includes");
1122 } # end of setupIncPaths
1127 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1130 foreach $f (@SysLibrary) {
1131 next if $f =~ /_cbits/;
1132 $f .= $BuildTag if $f =~ /^-lHS/;
1135 # Push library HSrts, plus boring clib bit
1136 push(@SysLibrary, "-lHSrts${BuildTag}");
1139 # RTS compiled with cygwin32, uses the WinMM API
1140 # to implement the itimers, since cygwin.dll does not
1141 # support it. Only reqd. for `ways' that use itimers.
1143 push(@SysLibrary, '-lwinmm') if ($TargetPlatform =~ /-(mingw32|cygwin32)$/);
1144 # Note: currently only tested with mingw, may cause conflicts when linking
1146 push(@SysLibrary, '-lwsock32') if ($TargetPlatform =~ /-(mingw32|cygwin32)$/);
1148 # Push the pvm libraries
1149 if ($BuildTag eq '_mp') {
1150 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1151 push(@SysLibrary, "-L$pvmlib", '-lgpvm3', '-lpvm3');
1152 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1153 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1154 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1155 push(@SysLibrary, '-lsocket', '-lnsl');
1159 # Push the GNU multi-precision arith lib; and the math library
1161 # If this machine has GMP already installed, then we'll get the installed
1162 # lib here, because presumably the one in the tree won't have been built.
1164 if ($LibGmp eq 'not-installed') {
1165 push(@SysLibrary, "-lgmp");
1167 push(@SysLibrary, "-l$LibGmp");
1170 push(@SysLibrary, '-lm') if !( $TargetPlatform =~ /^.*(cygwin32|mingw32)$/ );
1173 %************************************************************************
1175 \subsection{Check that this system was built to do what we are asking}
1177 %************************************************************************
1179 Before continuing we check that the appropriate build is available.
1182 #die "$Pgm: no BuildAvail?? $BuildTag\n" if $BuildDescr{$BuildTag} eq '' ; # sanity
1184 if ( $BuildDescr{$BuildTag} eq '' ) {
1185 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1186 "' \"build\" is not available with your GHC setup.\n";
1187 print STDERR "(It was not configured for it at your site.)\n";
1188 print STDERR $ShortUsage;
1192 } # end of setupSyslibs
1196 %************************************************************************
1198 \subsection{Final miscellaneous setup bits before we start going}
1200 %************************************************************************
1202 Record largest specific heapsize, if any.
1204 sub setupHeapStackSize {
1205 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1206 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1207 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1208 push(@HsC_rts_flags, "-K$Specific_stk_size");
1212 If no input or link files seen, then we let 'em feed in stdin; this is
1213 mainly for debugging.
1217 if ($#Input_file < 0 && $#Link_file < 0) {
1218 @Input_file = ( '-' );
1220 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1221 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n" if -t;
1222 while (<STDIN>) { print INF $_; }
1223 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1228 Tell the world who we are, if they asked.
1230 print STDERR "${ProjectName}, version ${ProjectVersion}, patchlevel ${ProjectPatchLevel}\n"
1234 %************************************************************************
1236 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1238 %************************************************************************
1240 Process the input files; don't continue with linking if there are
1241 problems (global variable @$Status@ non-zero).
1243 foreach $ifile (@Input_file) {
1244 &ProcessInputFile($ifile);
1247 # don't link if there were errors...
1248 if ( $Status > 0 ) {
1249 print STDERR $ShortUsage;
1254 # Link if appropriate.
1255 &runLinker() if $Do_lnkr;
1257 # that... that's all, folks!
1259 exit $Status; # will still be 0 if all went well
1262 %************************************************************************
1264 \section[Driver-do-one-file]{How to process a single input file}
1266 %************************************************************************
1269 sub ProcessInputFile {
1270 local($ifile) = @_; # input file name
1271 local($ifile_root); # root of or basename of input file
1272 local($ofile_target); # ultimate output file we hope to produce
1273 # from input file (need to know for recomp
1274 # checking purposes)
1275 local($hifile_target);# ditto (but .hi file)
1276 local($ofile_c_stub_target);
1277 local($ofile_h_stub_target);
1280 Handle the weirdity of input from stdin.
1282 if ($ifile ne '-') {
1283 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1284 $ofile_target = # may be reset later...
1285 ($Specific_output_file ne '' && ! $Do_lnkr)
1286 ? $Specific_output_file
1287 : &odir_ify($ifile_root, 'o');
1288 $hifile_target= ($Specific_hi_file ne '')
1290 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1291 # NB: may change if $ifile_root isn't module name (??)
1292 ($ofile_c_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.c/;
1293 ($ofile_h_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.h/;
1295 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1296 $ifile_root = '_stdin';
1297 $ofile_target = '_stdout'; # gratuitous?
1298 $hifile_target= '_stdout'; # ditto?
1302 We need to decide what phases of the compilation system we will run
1303 over this file. The defaults are the ones established when processing
1304 flags. (That established what the last phase run for all files is.)
1306 We do the pre-recompilation-checker phases here; the rest later.
1310 Look at the suffix and decide what initial phases of compilation may
1311 be dropped off for this file. Also the rather boring business of
1312 which files are coming-in/going-out.
1314 Again, we'll do the post-recompilation-checker parts of this later.
1316 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1317 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1320 # names of the files to stuff between phases
1321 # defaults are temporaries
1322 local($in_lit2pgm) = $ifile;
1323 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1324 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1325 local($hsc_hi) = "$Tmp_prefix.hi";
1326 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1327 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1328 local($as_out) = $ofile_target;
1330 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
1332 # OK, let's strip off some literate junk..
1334 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
1336 $lit2pgm_hscpp = $ifile;
1342 # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas
1343 &check_for_source_options($lit2pgm_hscpp,$ifile);
1345 # Options found in the source file take a back seat, i.e., we scan
1346 # them first. Only process the command line again if source file
1347 # contained anything of interest *or* there's more than one
1348 # input file (we have to reset the options).
1350 if ( $#Input_file >= 0 || $#File_options >= 0) {
1351 #@File_options = (@File_options, @Cmd_opts);
1353 # Now process the command line
1354 &initDriverGlobals();
1355 &processArgs((@File_options,@Cmd_opts));
1356 print STDERR "\nEffective command line: " .
1357 join(' ',(@File_options,@Cmd_opts)) . "\n" if $Verbose;
1360 # Having got the effective command line scanned, set up
1361 # the various options in prep for some real work.
1363 # check the sanity of the BuildTag we're about to use,
1364 # and if needs be, add some more flags and setup to
1365 # the different phases.
1368 &setupOptimiseFlags();
1371 &setupWarningFlags();
1372 &setupHeapStackSize();
1375 # These two variables need to be set after the
1376 # command-line has been processed and the build options
1377 # have be seen set up. This is because command-line options
1378 # can control whether to compile vias C or not.
1380 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1382 : ( ($HscOut eq '-C=') ? 1 : 0 );
1383 local($do_as) = $Do_as;
1384 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1385 local($hsc_out_c_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.c" : "";
1386 local($hsc_out_h_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.h" : "";
1388 if ($Only_preprocess_hc) { # stop after having run $Cc -E
1391 if ($Only_preprocess_C) { # stop after having run $hscpp
1392 $do_hsc=0; $do_cc = 0; $do_as=0;
1393 } elsif ($ifile =~ /.lhs$/ || $ifile =~ /.hs$/ ) {
1395 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
1396 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1398 $hsc_out_c_stub = '';
1399 $hsc_out_h_stub = '';
1400 } elsif ($ifile =~ /\.c$/) {
1401 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1402 $hsc_out = $ifile; $is_hc_file = 0;
1403 $hsc_out_c_stub = '';
1404 $hsc_out_h_stub = '';
1405 } elsif ($ifile =~ /\.[sS]$/) {
1406 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
1408 } else { # don't know what it is, but nothing to do herein...
1409 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
1412 # hack to avoid running hscpp
1413 $HsCpp = $Cat if ! $Cpp_flag_set;
1415 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) if $do_hscpp;
1419 We now think about whether to run hsc/cc or not (when hsc produces .s
1420 stuff, it effectively takes the place of both phases).
1421 To get the output file name right: for each phase that we are {\em
1422 not} going to run, set its input (i.e., the output of its preceding
1423 phase) to @"$ifile_root.<suffix>"@.
1426 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
1429 # Warning issued if -keep-hc-file-too is used without
1430 # -fvia-C (or the equivalent)
1432 if ( $HscOut ne '-C=' && $Keep_hc_file_too ) {
1433 print STDERR "$Pgm: warning: Native code generator to be used, -keep-hc-file-too will be ignored\n";
1436 if (! $do_cc && ! $do_as) { # stopping after hsc
1437 $hsc_out = ($Specific_output_file ne '')
1438 ? $Specific_output_file
1439 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
1441 $ofile_target = $hsc_out; # reset
1444 if (! $do_as) { # stopping after gcc (or hsc)
1445 $cc_as = ($Specific_output_file ne '')
1446 ? $Specific_output_file
1447 : &odir_ify($ifile_root, ( $Only_preprocess_hc ) ? 'i' : 's');
1449 $ofile_target = $cc_as; # reset
1455 Now the Haskell compiler, C compiler, and assembler
1459 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
1460 $ofile_target, $hifile_target,
1461 $going_interactive);
1464 if (-f $hsc_out_h_stub) {
1465 &run_something("cp $hsc_out_h_stub $ofile_h_stub_target", 'Copy foreign export header file');
1468 if (-f $hsc_out_c_stub) {
1469 &run_something("rm -f $ofile_c_stub_target && echo '#include \"${ofile_h_stub_target}\"' > $ofile_c_stub_target && cat $hsc_out_c_stub >> $ofile_c_stub_target", 'Copy foreign export C stubs');
1470 local ($hsc_out_s_stub);
1471 local ($hsc_out_o_stub);
1472 ($ofile_s_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$/\.s/;
1473 ($ofile_o_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$/\.o/;
1475 &runGcc (0, $ofile_c_stub_target, $ofile_s_stub_target);
1476 &runAs ($ofile_o_stub_target, $ofile_s_stub_target);
1479 # Bring the C stub protos into scope when compiling the .hc file.
1481 push (@CcInjects, "#include \"${hsc_out_h_stub}\"\n");
1482 # Hack - ensure that the stub .h file is included in the OPTIONS section
1483 # if the .hc file is saved.
1484 push (@File_options, "-#include \"${ofile_h_stub_target}\"\n");
1489 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
1490 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root) if ! $Only_preprocess_hc;
1493 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
1495 # save a copy of the .s file..
1496 &saveIntermediate($ifile_root , "s" , $cc_as) if ($do_as && $Keep_s_file_too);
1497 &runAs($as_out, $ifile_root) if $do_as;
1500 Finally, decide what to queue up for linker input.
1502 # tentatively assume we will eventually produce linker input:
1503 push(@Link_file, &odir_ify($ifile_root, 'o'));
1505 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
1507 if ( $ifile !~ /\.(lhs|hs|hc|c|s|a|S)$/ && $ifile !~ /_hc$/ ) {
1508 # There's sometimes confusion regarding .hi files; users
1509 # supplying them on the command line.
1510 if ( $ifile =~ /\.hi$/ ) {
1511 print STDERR "$Pgm: warning: found `$ifile' on command line; interface files should not be supplied here - ignoring it.\n";
1513 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n";
1515 # oops; we tentatively pushed the wrong thing; fix & do the right thing
1516 pop(@Link_file); push(@Link_file, $ifile);
1520 } # end of ProcessInputFile
1523 %************************************************************************
1525 \section[Driver-run-phases]{Routines to run the various phases}
1527 %************************************************************************
1531 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
1535 # Only add #line pragma if we're going to need it.
1536 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && " if ($Cpp_flag_set);
1537 $to_do .= "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
1539 push(@Files_to_tidy, $lit2pgm_hscpp );
1541 &run_something($to_do, 'literate pre-processor');
1547 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
1551 # Strictly speaking, echoing of the following line pragma is only required
1552 # on non-delit'ed input, as we've already added it during de-lit. However,
1553 # hscpp will then add a {-# LINE 1 "$lit2pgm_hsc" -} to the top of the file,
1554 # which is not very informative (but harmless). Hence, we uniformly have
1555 # {-# LINE 1 "$in_lit2pgm" #-} as the first line to all cpp'ed hsc input.
1557 $to_do = "echo '{-# LINE 1 \"$in_lit2pgm\" -}' > $hscpp_hsc && ";
1559 if ($HsCpp eq $Cat) {
1560 $to_do .= "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
1561 push(@Files_to_tidy, $hscpp_hsc );
1562 &run_something($to_do, 'Ineffective C pre-processor');
1564 local($includes) = '-I' . join(' -I',@Include_dir);
1565 $to_do .= "$HsCpp $Verbose @HsCpp_flags @HsSourceCppOpts $includes $lit2pgm_hscpp >> $hscpp_hsc";
1566 push(@Files_to_tidy, $hscpp_hsc );
1567 &run_something($to_do, 'Haskellised C pre-processor');
1570 if ( $Only_preprocess_C ) {
1571 $to_do = "$Cat $hscpp_hsc";
1572 &run_something($to_do, '');
1580 sub runHscAndProcessInterfaces {
1581 local($ifile, $hscpp_hsc, $ifile_root,
1582 $ofile_target, $hifile_target,
1583 $going_interactive) = @_;
1585 # $ifile is the original input file
1586 # $hscpp_hsc post-unlit, post-cpp, etc., input file
1587 # $ifile_root input filename minus suffix
1588 # $ofile_target the output file that we ultimately hope to produce
1589 # $hifile_target the .hi file ... (ditto)
1591 local($source_unchanged) = 1;
1593 # Check if the source file is up to date relative to the target; in
1594 # that case we say "source is unchanged" and let the compiler bail out
1595 # early if the import usage information allows it.
1597 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
1598 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
1600 # The informational messages below are now conditional on -v being set -- SOF
1601 if ( $ofile_target ne "_stdin.s" && ! -f $ofile_target ) {
1602 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n" if $Verbose;
1603 $source_unchanged = 0;
1606 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
1607 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
1609 if ( $hifile_target ne "_stdout" && ! -f $hifile_target ) {
1610 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n" if $Verbose;
1611 $source_unchanged = 0;
1614 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
1615 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
1617 if ( $ofile_target ne "_stdin.s" && $i_mtime > $o_mtime) {
1618 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n" if $Verbose;
1619 $source_unchanged = 0;
1622 # Tell the compiler which version we're using
1623 push(@HsC_flags, "-fhi-version=${ProjectVersionInt}");
1625 # So if source_unchanged is still "1", we pass on the good news to the compiler
1626 # The -recomp flag can disable this, forcing recompilation
1627 if ($Do_recomp_chkr && $source_unchanged) {
1628 push(@HsC_flags, '-fsource-unchanged');
1631 # Indicate whether we're static or not.
1632 # This will only ever
1633 push(@HsC_flags, '-static') if $Static;
1637 &runHsc($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive);
1639 # See if it bailed out early, saying nothing needed doing.
1640 # We work this out by seeing if it created an output .hi file
1642 if ( ! -f $hsc_hi && $ProduceHi !~ /-nohifile=/ ) {
1643 # Doesn't exist, so we bailed out early.
1644 # Tell the C compiler and assembler not to run
1645 $do_cc = 0; $do_as = 0;
1647 # Update dependency info, touch both object file and
1648 # interface file, so that the following invariant is
1651 # a dependent module's interface file should after recompilation
1652 # checking be newer than the interface files of its imports.
1654 # That is, if module A's interface file changes, then module B
1655 # (which import from A) needs to be checked.
1656 # If A's change does not affect B, which causes the compiler to bail
1657 # out early, we still need to touch the interface file of B. The reason
1658 # for this is that B may export A's interface.
1660 &run_something("touch $ofile_target",
1661 "Touch $ofile_target, to propagate dependencies") if $HscOut ne '-N=';
1662 &run_something("touch $hifile_target",
1663 "Touch $hifile_target, to propagate dependencies") if $ProduceHi =~ /-nohifile=/ ;
1667 # Didn't bail out early (new .hi file) so we thunder on
1669 # If non-interactive, heave in the consistency info at the end
1670 # NB: pretty hackish (depends on how $output is set)
1671 if ( ! $going_interactive ) {
1672 if ( $HscOut eq '-C=' ) {
1673 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
1675 } elsif ( $HscOut eq '-S=' ) {
1676 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
1677 $consist =~ s/,/./g;
1678 $consist =~ s/\//./g;
1679 $consist =~ s/-/_/g;
1680 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
1681 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
1683 &run_something($to_do, 'Pin on Haskell consistency info');
1687 # Interface-handling is important enough to live off by itself
1688 if ( $ProduceHi !~ /-nohifile=/ ) { # If we've produced one, process it.
1689 require('ghc-iface.prl') || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
1690 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
1692 # if we're going to split up object files,
1693 # we inject split markers into the .hc file now
1694 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
1695 &inject_split_markers ( $hsc_out );
1698 # save a copy of the .hc file, even if we are carrying on...
1699 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
1700 &saveIntermediate($ifile_root , "hc" , $hsc_out);
1710 local($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive) = @_;
1712 &makeHiMap() unless $HiMapDone;
1713 push(@HsC_flags, "\"-himap=$HiIncludeString\"");
1714 push(@HsC_flags, "\"-himap-sep=${SplitMarker}\"");
1716 # here, we may produce .hc/.s and/or .hi files
1717 local($output) = '';
1718 #@Files_to_tidy = ();
1720 if ( $going_interactive ) {
1721 # don't need .hi unless we're going to show it on stdout:
1722 $ProduceHi = '-nohifile=' if ! ($HiOnStdout || $Specific_hi_file ne '' );
1723 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
1726 # set up for producing output/.hi; note that flag twiddling
1727 # may mean that nothing will actually be produced:
1728 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out -F=$hsc_out_c_stub -FH=$hsc_out_h_stub";
1729 push(@Files_to_tidy, $hsc_hi, $hsc_out, $hsc_out_c_stub, $hsc_out_h_stub );
1731 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
1732 if ( $CollectingGCstats ) {
1733 push(@HsC_rts_flags, "-S$ifile_root.stat");
1734 push(@Files_to_tidy, "$ifile_root.stat");
1737 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
1738 # emit nofibbish time/bytes-alloc stats to stderr;
1739 # see later .stat file post-processing
1740 print STDERR "warning: both -Rgc-stats and -Rghc-timing used, -Rghc-timing wins." if $CollectingGCstats;
1741 push(@HsC_rts_flags, "-S$Tmp_prefix.stat");
1742 push(@Files_to_tidy, "$Tmp_prefix.stat");
1746 if ($Specific_dump_file ne '') {
1747 $dump = "2>> $Specific_dump_file";
1748 $Using_dump_file = 1;
1752 # Win32 only: If the command processor used by system()
1753 # exec()s the application as an ordinary Win32 executable,
1754 # we're in trouble here, since the command line is likely
1755 # to be > 255 chars long. To work around this situation,
1756 # $HsC also understands `at-files', i.e., `@file' on the
1757 # command line will cause $HsC to add the contents of `file'
1758 # to the command line.
1760 # [ Note: support for `at-files' is not compiled in by default ]
1761 $cmd_line_opts_via_at_file=0;
1762 if ($cmd_line_opts_via_at_file) {
1764 local($to_do_opts) = "$Tmp_prefix.opts";
1765 open(OPTS, "> $Tmp_prefix.opts") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.opts\n");
1766 print OPTS "$dump @HsC_flags $CoreLint $USPLint $StgLint $Verbose";
1768 $to_do = "$HsC $hscpp_hsc \@$Tmp_prefix.opts $output +RTS @HsC_rts_flags";
1772 $to_do = "$HsC $hscpp_hsc $dump @HsC_flags $CoreLint $USPLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
1774 &run_something($to_do, 'Haskell compiler');
1776 # finish business w/ nofibbish time/bytes-alloc stats
1777 &process_ghc_timings() if $CollectGhcTimings;
1781 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
1782 of (module-name, pathname) pairs, one per line, separated by a space.
1785 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1789 # collect in %HiMap; write later; also used elsewhere in driver
1791 local($mod, $path, $d, $e);
1793 # reset the global variables:
1795 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1797 foreach $d ( @Import_dir ) {
1798 if ($HiIncludeString) {
1799 $HiIncludeString = "$HiIncludeString${SplitMarker}${d}%.${HiSuffix}";
1801 $HiIncludeString = "$d%.${HiSuffix}";
1806 foreach $d ( @SysImport_dir ) {
1807 if ($HiIncludeString) {
1808 $HiIncludeString = "$HiIncludeString${SplitMarker}${d}%.${HiSuffix_prelude}";
1810 $HiIncludeString = "${d}%.${HiSuffix_prelude}";
1819 Invoke the 'linker' - either the standard linker or the one used to build
1825 local($libdirs) = '';
1827 # append last minute flags linker and consistency flags
1832 # glue them together:
1833 push(@UserLibrary_dir, @SysLibrary_dir);
1835 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1837 # for a linker, use an explicitly given one, or the going C compiler ...
1838 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1840 if ( ($Specific_output_file eq '') &&
1841 ($TargetPlatform eq 'i386-unknown-cygwin32') ) {
1842 $Specific_output_file = 'main.exe';
1843 print STDERR "Output file not specified, defaulting to \"main.exe\"\n";
1846 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1847 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1849 &prepareWin32DllLink(1);
1851 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $TopClosureFile $libdirs @UserLibrary @SysLibrary";
1852 &run_something($to_do, 'Linker');
1854 # finally, check the consistency info in the binary
1855 local($executable) = $Files_to_tidy[0];
1856 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1859 # dynamically load consistency-chking code; then do it.
1860 require('ghc-consist.prl')
1861 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1863 &chk_consistency_info ( $executable );
1866 # if PVM parallel stuff, we do truly weird things.
1867 # Essentially: (1) move the executable over to where PVM expects
1868 # to find it. (2) create a script in place of the executable
1869 # which will cause the program to be run, via SysMan.
1870 if ( $PARing eq 'p' ) {
1871 local($pvm_executable) = $executable;
1872 local($pvm_executable_base);
1874 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1875 local($pwd) = `pwd`;
1877 $pwd =~ s/^\/tmp_mnt//;
1878 $pvm_executable = "$pwd/$pvm_executable";
1881 $pvm_executable =~ s|/|=|g; # make /s into =s
1882 $pvm_executable_base = $pvm_executable;
1884 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1885 . "/$pvm_executable";
1887 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1889 # OK, now create the magic script for "$executable"
1890 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1891 print EXEC <<EOSCRIPT1;
1892 eval 'exec perl -S \$0 \${1+"\$@"}'
1893 if \$running_under_some_shell;
1894 # =!=!=!=!=!=!=!=!=!=!=!
1895 # This script is automatically generated: DO NOT EDIT!!!
1896 # Generated by Glasgow Haskell, version ${ProjectVersion} ${ProjectPatchLevel}
1898 \$pvm_executable = '$pvm_executable';
1899 \$pvm_executable_base = '$pvm_executable_base';
1900 \$SysMan = '$SysMan';
1903 print EXEC <<\EOSCRIPT2;
1904 # first, some magical shortcuts to run "commands" on the binary
1906 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1908 system("$cmd $pvm_executable");
1912 # OK, really run it; process the args first
1913 $ENV{'PE'} = $pvm_executable_base;
1915 $nprocessors = 2; # the default
1919 # ToDo: handle --RTS
1920 args: while ($a = shift(@ARGV)) {
1921 if ( $a eq '+RTS' ) {
1923 } elsif ( $a eq '-RTS' ) {
1926 if ( $a eq '-d' && $in_RTS_args ) {
1928 } elsif ( $a =~ /^-N(\d+)/ && $in_RTS_args ) {
1931 push(@nonPVM_args, $a);
1935 local($return_val) = 0;
1936 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
1938 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
1941 close(EXEC) || die "Failed closing $executable\n";
1942 chmod 0755, $executable;
1946 sub createWin32DLL()
1950 # append last minute flags linker and consistency flags
1955 # glue them together:
1956 push(@UserLibrary_dir, @SysLibrary_dir);
1958 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1960 &prepareWin32DllLink(0);
1962 local ($bld_dll) = "dllwrap";
1964 local ($output) = ($Specific_output_file ne '') ? "$Specific_output_file" : 'HSdll.dll';
1965 local ($output_dir);
1966 local ($output_file);
1967 local ($output_lib, $output_def);
1969 ($output_dir = $output) =~ s|(.*/)[^/]+$|$1|;
1970 $output_dir = "" if ($output_dir eq $output);
1971 ($output_file = $output) =~ s|.*/([^/]+)$|$1|;
1973 ($output_lib = $output_file) =~ s|(.+)\.[^\.]*$|${output_dir}lib$1_imp.a|;
1974 ($output_def = $output_file) =~ s|(.+)\.[^\.]*$|${output_dir}$1.def|;
1976 push (@Dll_flags, "-mno-cygwin --target=i386-mingw32") if ($TargetPlatform =~ /^.*mingw32$/);
1977 push (@Dll_flags, "--output-lib $output_lib");
1978 # If the "--def " option hasn't been supplied, assume everything
1979 # is going to be exported via the DLL.."
1980 if (!grep(/--def/, @Dll_flags)) {
1981 push (@Dll_flags, "--export-all --output-def $output_def");
1984 local($to_do) = "$bld_dll @Dll_flags -o $output @Link_file $libdirs @UserLibrary @SysLibrary";
1985 # Make sure the user sees this piece of magic.
1986 print STDERR "$to_do\n" if (!$Verbose);
1987 &run_something($to_do, 'DLL creator');
1990 sub prepareWin32DllLink ()
1992 local($linking_main) = @_;
1995 # Win32 DLLs - link with import libraries, not the real archives.
1997 if ( $TargetPlatform =~ /-mingw32$/ ) {
2000 # If the libraries have the form libHSfoo.a, we
2001 # transform that into libHSfoo_imp.a - the import
2002 # library of the DLL.
2004 foreach $a ( @SysLibrary ) {
2005 $a = "${a}_imp" if ($a =~ /^-lHS/);
2007 foreach $a ( @UserLibrary ) {
2008 $a = "${a}_imp" if ($a =~ /^-lHS/);
2010 push(@Link_file, ( $INSTALLING ) ? "$InstLibDirGhc/Main.dll_o"
2011 : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/Main.dll_o") if $linking_main;
2012 push(@Link_file, ( $INSTALLING ) ? "$InstLibDirGhc/PrelMain.o"
2013 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/PrelMain.o") if $linking_main;
2015 push(@Ld_flags, "-mno-cygwin");
2021 %************************************************************************
2023 \section[Driver-misc-utils]{Miscellaneous utilities}
2025 %************************************************************************
2027 %************************************************************************
2029 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
2031 %************************************************************************
2035 local($ofile,$def_suffix) = @_;
2037 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
2041 local($orig_file, $def_suffix) = @_;
2042 if ($Specific_output_dir eq '') { # do nothing
2043 &osuf_ify($orig_file, $def_suffix);
2045 local ($orig_file_only);
2046 ($orig_file_only = $orig_file) =~ s|.*/||;
2047 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
2054 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
2056 local($includes) = '-I' . join(' -I', @Include_dir);
2059 local($c_flags) = "@CcBoth_flags";
2060 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2062 $c_flags .= " -mno-cygwin" if ( $TargetPlatform =~ /-mingw32$/ );
2064 # "input" files to use that are not in some weird directory;
2065 # to help C compilers grok .hc files [ToDo: de-hackify]
2066 local($cc_help) = "ghc$$.c";
2067 local($cc_help_s) = "ghc$$.s";
2070 $s_output = (($is_hc_file && $DoAsmMangling) || $TargetPlatform =~ /^(powerpc|rs6000|hppa)/) ? $cc_as_o : $cc_as;
2071 $c_flags .= " @CcRegd_flags";
2072 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2074 # C compiler won't like the .hc extension. So we create
2075 # a tmp .c file which #include's the needful.
2076 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2077 if ( $is_hc_file ) {
2081 # user may have asked for #includes to be injected...
2082 print TMP @CcInjects if $#CcInjects >= 0;
2084 # Straight .c files may want to know that they're being used
2085 # with a particular version of GHC, so we define __GLASGOW_HASKELL__ for their benefit.
2086 print TMP "#define __GLASGOW_HASKELL__ ${ProjectVersionInt}\n";
2088 # heave in the consistency info
2089 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2091 print TMP "#include \"$hsc_out\"\n";
2092 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2094 # Don't redirect stderr into intermediate file if slamming output onto stdout (e.g., with -E)
2095 local($fuse_stderr) = "2>&1" if ! $Only_preprocess_hc;
2096 local($to_do) = "$cc $Verbose $ddebug_flag $c_flags @Cpp_define $includes $cc_help > $Tmp_prefix.ccout $fuse_stderr && ( if [ $cc_help_s != $s_output ] ; then mv $cc_help_s $s_output ; else exit 0 ; fi )";
2098 if ( $Only_preprocess_hc ) { # HACK ALERT!
2099 $to_do =~ s/ -S\b//g;
2101 push(@Files_to_tidy, $cc_help, $cc_help_s, $s_output );
2102 $PostprocessCcOutput = 1 if ! $Only_preprocess_hc; # hack, dear hack...
2103 &run_something($to_do, 'C compiler');
2104 $PostprocessCcOutput = 0;
2105 if ( $Only_preprocess_hc ) {
2106 system("$Cat $Tmp_prefix.ccout");
2108 unlink($cc_help, $cc_help_s);
2114 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2116 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2118 if ($is_hc_file && $DoAsmMangling) {
2119 # dynamically load assembler-fiddling code, which we are about to use:
2120 require('ghc-asm.prl')
2121 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2122 # post-process the assembler [.hc files only]
2123 &mangle_asm($cc_as_o, $cc_as);
2125 } elsif ($TargetPlatform =~ /^hppa/) {
2126 # minor mangling of non-threaded files for hp-pa only
2127 require('ghc-asm.prl')
2128 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2129 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2131 } elsif ($TargetPlatform =~ /^powerpc|^rs6000/) {
2132 # minor mangling of non-threaded files for powerpcs and rs6000s
2133 require('ghc-asm.prl')
2134 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-powerpc.prl!\n");
2135 &mini_mangle_asm_powerpc($cc_as_o, $cc_as);
2138 # save a copy of the .s file, even if we are carrying on...
2139 #if ($do_as && $Keep_s_file_too) {
2140 # &saveIntermediate($ifile_root , "s" , $cc_as);
2147 local($as_out, $ifile_root) = @_;
2149 local($asmblr) = ( $As ) ? $As : $CcRegd;
2151 # need to add the -I flags in case the file is going through cpp (.S files)
2152 local($includes) = '-I' . join(' -I', @Include_dir);
2154 if ( ! $SplitObjFiles ) {
2155 local($to_do) = "$asmblr -o $as_out -c @As_flags $includes $cc_as";
2156 push(@Files_to_tidy, $as_out );
2157 &run_something($to_do, 'Unix assembler');
2159 } else { # more complicated split-ification...
2161 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2163 # If -odir is used, great, just pin it in front of the
2164 # generated split file names. If it hasn't been set, we
2165 # snatch it from the ifile_root.
2169 if ( $Specific_output_dir eq '' ) {
2170 $Specific_output_dir = ${ifile_root};
2173 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2174 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2175 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2176 push(@Files_to_tidy, $split_out );
2178 &run_something($to_do, 'Unix assembler');
2184 %************************************************************************
2186 \subsection[Driver-run-something]{@run_something@: Run a phase}
2188 %************************************************************************
2192 local($str_to_do, $tidy_name) = @_;
2194 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2195 print STDERR "$str_to_do\n" if $Verbose;
2197 if ($Using_dump_file) {
2198 open(DUMP, ">> $Specific_dump_file")
2199 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2200 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2202 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2205 local($return_val) = 0;
2207 if ( length($str_to_do) > 4000) {
2208 # 4000 - on the random side, just like the *real* ARG_MAX
2211 # With some shells, command lines of this length may
2212 # very well cause trouble. To safeguard against this, we squirrel the
2213 # command into a file and exec that.
2214 local ($sh) = $ENV{'REAL_SHELL'};
2215 print STDERR "Backup plan A: saving cmd line in ${Tmp_prefix}.sh and executing that with $sh\n" if $Verbose;
2216 open (TEMP, "> ${Tmp_prefix}.sh") ||
2217 &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.sh'\n");
2218 print TEMP "$Time $str_to_do\n";
2220 &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.sh'\n");
2221 system("$sh $Tmp_prefix.sh");
2224 unlink "${Tmp_prefix}.sh";
2226 system("$Time $str_to_do");
2230 if ( $PostprocessCcOutput ) { # hack, continued
2231 open(CCOUT, "< $Tmp_prefix.ccout")
2232 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2234 next if /call-clobbered/;
2235 next if /control reaches end/;
2236 next if /from .*Stg\.h:/;
2237 next if /from ghc\d+.c:\d+:/;
2238 next if /: At top level:$/;
2239 next if /: In function \`.*\':$/;
2240 next if /\`ghc_cc_ID\' defined but not used/;
2243 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2246 if ($return_val != 0) {
2247 if ($Using_dump_file) {
2248 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2250 &tidy_up_and_die($return_val, '');
2252 $Using_dump_file = 0;
2256 %************************************************************************
2258 \subsection[Driver-ghc-timing]{Emit nofibbish GHC timings}
2260 %************************************************************************
2262 NB: nearly the same as in @runstdtest@ script.
2265 sub process_ghc_timings {
2266 local($StatsFile) = "$Tmp_prefix.stat";
2267 local($SysSpecificTiming) = 'ghc';
2269 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2270 local($max_live) = 0;
2271 local($tot_live) = 0; # for calculating residency stuff
2272 local($tot_samples) = 0;
2275 if (! /Gen:\s+0/ && ! /Minor/ && /^\s*\d+\s+\d+\s+(\d+)\s+\d+\.\d+/ ) {
2276 $max_live = $1 if $max_live < $1;
2280 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2282 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2283 $MaxResidency = $1; $ResidencySamples = $2;
2286 $GCs = $1 if /^\s*([0-9,]+) (collections? in generation 0|garbage collections? performed)/;
2288 if ( /^\s+([0-9]+)\s+Mb total memory/ ) {
2292 # The presence of -? in the following pattern is only there to
2293 # accommodate 0.29 && <= 2.05 RTS'
2294 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*-?(\d+\.\d\d)s elapsed\)/ ) {
2295 $InitTime = $1; $InitElapsed = $2;
2296 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2297 $MutTime = $1; $MutElapsed = $2;
2298 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2299 $GcTime = $1; $GcElapsed = $2;
2302 close(STATS) || die "Failed when closing $StatsFile\n";
2303 if ( $tot_samples > 0 ) {
2304 $ResidencySamples = $tot_samples;
2305 $MaxResidency = $max_live;
2306 $AvgResidency = int ($tot_live / $tot_samples) ;
2309 # warn about what we didn't find
2310 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2311 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2312 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2313 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2314 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2315 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2316 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2317 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2319 # things we didn't necessarily expect to find
2320 $MaxResidency = 0 unless defined($MaxResidency);
2321 $AvgResidency = 0 unless defined($AvgResidency);
2322 $ResidencySamples = 0 unless defined($ResidencySamples);
2325 $BytesAlloc =~ s/,//g;
2326 $MaxResidency =~ s/,//g;
2328 $InitTime =~ s/,//g;
2329 $InitElapsed =~ s/,//g;
2331 $MutElapsed =~ s/,//g;
2333 $GcElapsed =~ s/,//g;
2335 # print out what we found
2336 print STDERR "<<$SysSpecificTiming: ",
2337 "$BytesAlloc bytes, $GCs GCs, $AvgResidency/$MaxResidency avg/max bytes residency ($ResidencySamples samples), ${TotMem}M in use, $InitTime INIT ($InitElapsed elapsed), $MutTime MUT ($MutElapsed elapsed), $GcTime GC ($GcElapsed elapsed)",
2338 " :$SysSpecificTiming>>\n";
2345 %************************************************************************
2347 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2349 %************************************************************************
2353 local($to_do) = "\n$Rm $Tmp_prefix*";
2354 if ( $Tmp_prefix !~ /^\s*$/ ) {
2355 print STDERR "$to_do\n" if $Verbose;
2360 sub tidy_up_and_die {
2361 local($return_val, $msg) = @_;
2363 # delete any files to tidy
2364 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2365 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2369 exit (($return_val == 0) ? 0 : 1);
2373 %************************************************************************
2375 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2377 %************************************************************************
2379 Some command-line arguments take an argument, e.g.,
2380 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2381 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2382 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2384 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2385 gobble the second argument (and probably set the heapsize to something
2389 local(*Args, $option, $rest_of_arg) = @_;
2391 if ($rest_of_arg ne '') {
2392 return($rest_of_arg);
2393 } elsif ($#Args >= 0) {
2394 local($temp) = $Args[0]; shift(@Args);
2397 print STDERR "$Pgm: no argument following $option option\n";
2408 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2410 foreach $f ( @HsC_antiflags ) {
2411 return(0) if $flag eq $f;
2413 # foreach $f ( @HsC_flags ) {
2414 # return(0) if $flag eq $f;
2419 sub squashHscFlag { # pretty terrible
2423 foreach $f ( @HsC_flags ) {
2424 if ($flag eq $f) { $f = ''; }
2432 foreach $f ( @flags ) {
2433 push( @HsC_flags, $f ) if &isntAntiFlag($f);
2438 To add another system library, you'll need to augment the
2439 Supported_syslibs variable with name and info on your addition
2440 to the syslib family. The info bit consist of the following:
2442 - interface file directory
2443 see the misc or posix entry for how to distinguish
2444 between using installed and build tree directories.
2446 - directory location of archives
2448 - location of (way-independent) C support libs.
2449 not all libraries need this - if you don't, just
2450 give the empty string.
2451 - list of syslibs you depend on.
2453 - additional ghc command line flags that should be used.
2454 - additional C compiler command line flags that should be used.
2460 # Hash to keep track of
2461 %Syslibs_added = ();
2464 local($syslib) = @_;
2466 # Lifting this out of this sub brings it out of scope - why??
2467 %Supported_syslibs =
2469 [ # where to slurp interface files from
2471 ? "$InstLibDirGhc/imports/exts"
2472 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/exts"
2474 , # where to find the archive to use when linking
2477 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/exts"
2480 , '' # Syslib dependencies
2481 , '' # extra ghc opts
2482 , '' # extra cc opts
2483 , '' # extra ld opts
2487 [ # where to slurp interface files from
2489 ? "$InstLibDirGhc/imports/misc"
2490 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc"
2492 , # where to find the archive to use when linking
2495 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc"
2497 , # where to find the cbits archive to use when linking
2500 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc/cbits"
2502 , 'exts concurrent' # Syslib dependencies
2503 , '' # extra ghc opts
2504 , '' # extra cc opts
2505 , ( $TargetPlatform =~ /-solaris2$/ ? '-lnsl -lsocket' : '')
2508 [ # where to slurp interface files from
2510 ? "$InstLibDirGhc/imports/hbc"
2511 : "$TopPwd/CONTRIB/libraries/hbc/src"
2513 , # where to find the archive to use when linking
2516 : "$TopPwd/CONTRIB/libraries/src/hbc"
2518 , # where to find the cbits archive to use when linking
2521 : "$TopPwd/CONTRIB/libraries/hbc/cbits"
2523 , 'exts' # Syslib dependencies
2524 , '' # extra ghc opts
2525 , '' # extra cc opts
2529 [ # where to slurp interface files from
2531 ? "$InstLibDirGhc/imports/posix"
2532 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix"
2534 , # where to find the archive to use when linking
2537 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix"
2539 , # where to find the cbits archive to use when linking
2542 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix/cbits"
2544 , 'misc' # Syslib dependencies
2545 , '' # extra ghc opts
2546 , '' # extra cc opts
2547 , '' # extra ld opts
2550 [ # where to slurp interface files from
2552 ? "$InstLibDirGhc/imports/concurrent"
2553 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent"
2555 , # where to find the archive to use when linking
2558 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent"
2560 , '' # where to find the cbits archive to use when linking
2561 , '' # Syslib dependencies
2562 , '' # extra ghc opts
2563 , '' # extra cc opts
2564 , '' # extra ld opts
2567 [ # where to slurp interface files from
2569 ? "$InstLibDirGhc/imports/win32"
2570 : "$TopPwd/hslibs/win32/src"
2572 , # where to find the archive to use when linking
2575 : "$TopPwd/hslibs/win32/src"
2578 , 'exts' # Syslib dependencies
2579 , '' # extra ghc opts
2580 , '' # extra cc opts
2581 , '-luser32 -lgdi32' # extra ld opts
2584 [ # where to slurp interface files from
2586 ? "$InstLibDirGhc/imports/com"
2587 : "$TopPwd/hdirect/lib"
2589 , # where to find the archive to use when linking
2592 : "$TopPwd/hdirect/lib"
2595 , 'exts' # Syslib dependencies
2596 , '' # extra ghc opts
2597 , '' # extra cc opts
2598 , '-luser32 -lole32 -loleaut32 -ladvapi32'
2603 # check if it's supported..
2605 if ( !exists $Supported_syslibs{$syslib} ) {
2606 print STDERR "$Pgm: no such system library (-syslib): $syslib\n";
2611 # This check is here to avoid syslib loops from
2612 # spoiling the party. A side-effect of it is that
2613 # it disallows multiple mentions of a syslib on a command-line,
2614 # explicit *and* implicit ones (i.e., "-syslib exts -syslib misc"
2615 # is not equal to "-syslib exts -syslib misc -syslib exts",
2616 # which it needs to be)
2618 # Since our current collection of syslibs don't have any
2619 # loops, this test is disabled.
2621 # ToDo: loop avoidance scheme when the need arises
2623 #return if ( exists $Syslibs_added{$syslib} );
2625 $Syslibs_added{$syslib} = 1;
2627 local ($hi_dir, $lib_dir, $lib_cbits_dir,
2628 $syslib_deps, $syslib_ghc_opts,
2629 $syslib_cc_opts, $syslib_ld_opts) = @{ $Supported_syslibs{$syslib} };
2632 unshift(@SysImport_dir, $hi_dir);
2633 push(@SysLibrary_dir, $lib_dir);
2634 push(@SysLibrary_dir, $lib_cbits_dir) if ( $lib_cbits_dir ne '');
2636 push(@SysLibrary, "-lHS$syslib");
2637 push(@SysLibrary, "-lHS${syslib}_cbits") if ( $lib_cbits_dir ne '');
2638 push(@SysLibrary, $syslib_ld_opts) if ($syslib_ld_opts ne '');
2640 # Add on any extra dependencies.
2641 foreach $lib (split(' ',$syslib_deps)) {
2647 Source files may have {-# OPTIONS ... #-} pragmas at the top, containing
2648 command line options we want to append to collection of commands specified
2649 directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell
2650 file for any such pragmas:
2653 sub check_for_source_options {
2654 local($file,$ifile) = @_;
2655 local($comment_start,$comment_end);
2657 if ($ifile =~ /\.hc$/ ||
2660 $ifile =~ /_s$/ ) { # `Real' C intermediate
2661 $comment_start = "/\\*";
2662 $comment_end = "\\*/";
2663 } else { # Assume it is a file containing Haskell source
2664 $comment_start = "{-#";
2665 $comment_end = "#-}";
2668 open(FILE,$file) || return(1); # No big loss
2671 if ( /^${comment_start} OPTIONS (.*)${comment_end}/ ) {
2672 # add the options found at the back of the command line.
2673 local(@entries) = split(/\s+/,$1);
2674 print STDERR "Found OPTIONS " . join(' ',@entries) . " in $file\n" if $Verbose;
2675 push(@File_options, @entries);
2677 elsif ( /^$/ ) { # ignore empty lines
2680 elsif ( /^#line.+$/ ) { # ignore comment lines (unused..ToDo: rm )
2683 elsif ( /^{-# LINE.+$/ ) { # ignore line pragmas
2686 else { # stop looking, something non-empty / not
2687 # ${comment_start} OPTIONS .. ${comment_end} encountered.
2688 close(FILE);return(0);
2697 We split the initial argv up into three arrays:
2703 the reason for doing so is to be able to deal
2704 with {-# OPTIONS #-} pragma in source files properly.
2710 arg: while($_ = $args[0]) {
2712 # sigh, we have to deal with these -option arg specially here.
2713 /^-(tmpdir|odir|ohi|o|isuf|osuf|hisuf|odump|syslib)$/ &&
2714 do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; };
2715 /^--?./ && do { push(@Cmd_opts, $_); next arg; };
2717 if (/\.([^_]+_)?[oa]$/) {
2718 push(@Link_file, $_);
2720 push(@Input_file, $_);
2723 # input files must exist:
2725 print STDERR "$Pgm: input file doesn't exist: $_\n";
2733 When saving an intermediate file (.hc or .s) away, we
2734 have to prefix any OPTIONS found in the original source file.
2737 sub saveIntermediate {
2738 local ($final,$suffix,$tmp)= @_ ;
2741 # $final -- root of where to park ${final}.${suffix}
2742 # $tmp -- temporary file where hsc put the intermediate file.
2744 # Delete the old file
2745 $to_do = "$Rm ${final}.${suffix}"; &run_something($to_do, "Removing old .${suffix} file");
2747 if ( $#File_options >= 0 ) { # OPTIONS found in Haskell source unit
2748 # Add OPTION comment to the top of the generated .${suffix} file
2749 open(TEMP, "> ${final}.${suffix}") || &tidy_up_and_die(1,"Can't open ${final}.${suffix}\n");
2750 print TEMP "/* OPTIONS " . join(' ',@File_options) . " */\n";
2752 print STDERR "Prepending OPTIONS: " . join(' ',@File_options) . " to ${final}.${suffix}\n" if $Verbose;
2754 $to_do = "$Cat $tmp >> ${final}.${suffix}";
2755 &run_something($to_do, "Saving copy of .${suffix} file");
2762 Command-line processor
2768 # can't use getopt(s); what we want is too complicated
2770 arg: while($_ = $Args[0]) {
2773 #---------- help -------------------------------------------------------
2774 if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; }
2776 #-----------version ----------------------------------------------------
2777 /^--version$/ && do { print STDERR "${ProjectName}, version ${ProjectVersion}, patchlevel ${ProjectPatchLevel}\n"; exit $Status; };
2779 #---------- verbosity and such -----------------------------------------
2780 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
2782 #---------- what phases are to be run ----------------------------------
2783 /^-(no-)?recomp/ && do { $Do_recomp_chkr = ($1 eq '') ? 1 : 0; next arg; };
2785 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
2786 # change the global default:
2787 # we won't run cat; we'll run the real thing
2789 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
2791 # stop after generating C
2793 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
2794 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
2796 # leave out actual C generation (debugging) [also turns off interface gen]
2799 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
2800 # _do_ generate an interface; usually used as: -noC -hi
2801 /^-hi-with-(.*)$/ && do { $HiOnStdout = 1; $HiWith .= " $1" ; $ProduceHi = '-hifile='; next arg; };
2802 # limit ourselves to outputting a particular section.
2804 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
2805 # don't generate an interface (even if generating C)
2807 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
2808 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
2809 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
2810 /^-keep-hi-diffs$/ && do { $Keep_HiDiffs = 1; next arg; };
2812 # show/disable diffs if the interface file changes
2814 /^-E$/ && do { push(@CcBoth_flags, '-E');
2815 $Only_preprocess_C = 1;
2816 $Do_as = 0; $Do_lnkr = 0; next arg; };
2817 # stop after preprocessing C
2818 /^-M$/ && do { $Only_generate_deps = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2819 # only generate dependency information.
2820 /^--mk-dll$/ && do { $Only_generate_dll = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2821 # Build a Win32 DLL (where supported).
2822 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
2823 # stop after generating assembler
2825 /^-c$/ && do { $Do_lnkr = 0; next arg; };
2826 # stop after generating .o files
2828 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
2829 # don't do consistency-checking after a link
2830 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
2832 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', '');
2833 $Tmp_prefix = "$Tmp_prefix/ghc$$";
2834 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
2836 # use an alternate directory for temp files
2838 #---------- redirect output --------------------------------------------
2840 # -o <file>; applies to the last phase, whatever it is
2841 # "-o -" sends it to stdout
2842 # if <file> has a directory component, that dir must already exist
2844 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', '');
2846 # Hack, of the worst sort: don't do validation of
2847 # odir argument if you're using -M (dependency generation).
2849 if ( ! $Only_generate_deps && ! -d $Specific_output_dir) {
2850 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
2855 /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', '');
2856 if ($Specific_output_file ne '-'
2857 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
2858 local($dir_part) = $1;
2859 if (! -d $dir_part) {
2860 print STDERR "$Pgm: no such directory: $dir_part\n";
2866 # NB: -isuf not documented yet (because it doesn't work yet)
2867 /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', '');
2868 if ($Isuffix =~ /\./ ) {
2869 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
2874 /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', '');
2875 if ($Osuffix =~ /\./ ) {
2876 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
2881 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
2882 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', '');
2883 if ($Specific_hi_file ne '-'
2884 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
2885 local($dir_part) = $1;
2886 if (! -d $dir_part) {
2887 print STDERR "$Pgm: no such directory: $dir_part\n";
2891 $ProduceHi='-hifile=';
2894 # The suffix to use when looking for interface files
2895 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', '');
2896 if ($HiSuffix =~ /\./ ) {
2897 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
2901 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', '');
2902 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
2903 local($dir_part) = $1;
2904 if (! -d $dir_part) {
2905 print STDERR "$Pgm: no such directory: $dir_part\n";
2911 #-------------- scc & Profiling Stuff ----------------------------------
2913 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
2915 /^-auto-dicts$/ && do {
2916 $PROFdicts = '-fauto-sccs-on-dicts';
2918 /^-auto-all$/ && do {
2919 $PROFauto = '-fauto-sccs-on-all-toplevs';
2922 $PROFauto = '-fauto-sccs-on-exported-toplevs';
2925 /^-caf-all/ && do { # generate individual CAF SCC annotations
2926 $PROFcaf = '-fauto-sccs-on-individual-cafs';
2929 /^-ignore-scc$/ && do {
2930 # forces ignore of scc annotations even if profiling
2931 $PROFignore_scc = '-W';
2934 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
2937 /^-unprof-scc-auto/ && do {
2938 # generate auto SCCs on top level bindings when not profiling.
2939 # Used to measure optimisation effects of presence of sccs.
2940 $UNPROFscc_auto = ( /-all/ )
2941 ? '-fauto-sccs-on-all-toplevs'
2942 : '-fauto-sccs-on-exported-toplevs';
2945 #--------- ticky/parallel ----------------------------------------------
2946 # we sort out the details a bit later on
2948 /^-gransim$/ && do { $GRANing = 'g'; &add_syslib('concurrent'); next arg; }; # GranSim
2949 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
2950 /^-parallel$/ && do { $PARing = 'p'; &add_syslib('concurrent'); next arg; }; # parallel Haskell
2952 #-------------- "user ways" --------------------------------------------
2954 (/^-user-setup-([a-oA-Z])$/ ) &&
2956 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
2958 local($stuff) = $UserSetupOpts{$BuildTag};
2959 local(@opts) = split(/\s+/, $stuff);
2961 # feed relevant ops into the arg-processing loop (if any)
2962 unshift(@Args, @opts) if $#opts >= 0;
2966 #---------- set search paths for libraries and things ------------------
2968 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
2969 # prepends the items to the list); -I is for including C .h files.
2971 /^-i$/ && do { @Import_dir = (); # import path cleared!
2972 @SysImport_dir = ();
2973 print STDERR "WARNING: import paths cleared by `-i'\n";
2976 /^-i(.*)/ && do { local(@new_items);
2980 if ( $arg =~ /;/ ) {
2982 @new_items = split( /;/, &grab_arg_arg(*Args,'-i', $arg));
2984 @new_items = split( /:/, &grab_arg_arg(*Args,'-i', $arg));
2986 unshift(@Import_dir, @new_items);
2989 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; };
2990 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; };
2991 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; };
2993 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1);
2994 &add_syslib($syslib);
2997 #=======================================================================
2998 # various flags that we can harmlessly send to one program or another
2999 # (we will later "reclaim" some of the compiler ones now sent to gcc)
3000 #=======================================================================
3002 #---------- this driver itself (ghc) -----------------------------------
3003 # these change what executable is run for each phase:
3004 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
3005 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
3006 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
3007 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
3008 /^-pgma(.*)$/ && do { $As = $1; next arg; };
3009 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
3010 /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; };
3012 #---------- the get-anything-through opts (all pgms) -------------------
3013 # these allow arbitrary option-strings to go to any phase:
3014 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
3015 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
3016 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
3017 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
3018 /^-optcpp(.*)$/ && do { push(@Cpp_define, $1); $Only_preprocess_hc = ($1 eq "-E"); next arg; };
3019 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
3020 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
3021 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
3022 /^-optdll(.*)$/ && do { push(@Dll_flags, $1); next arg; };
3023 /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; };
3025 #---------- Haskell C pre-processor (hscpp) ----------------------------
3026 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; };
3027 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; };
3029 #---------- post-Haskell "assembler"------------------------------------
3030 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
3031 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
3033 #---------- Haskell compiler (hsc) -------------------------------------
3035 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
3036 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
3038 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
3039 /^-fignore-asserts$/ && do { push(@HsC_flags, $_); next arg; };
3041 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
3044 # have the compiler proper generate concurrent code,
3045 # really only used when you want to configure your own
3046 # special user compilation way.
3048 # (ditto for -fgransim, fscc-profiling, -fparallel and -fticky-ticky)
3050 /^-fscc-profiling$/ && do { push(@HsC_flags,$_); next arg; };
3051 /^-fticky-ticky$/ && do { push(@HsC_flags,$_); next arg; };
3052 /^-fgransim$/ && do { push(@HsC_flags,$_); next arg; };
3053 /^-fparallel$/ && do { push(@HsC_flags,$_); next arg; };
3055 /^-split-objs$/ && do {
3056 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|rs6000|sparc)-/ ) {
3058 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
3063 push(@HsC_flags, "-fglobalise-toplev-names");
3064 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
3066 require('ghc-split.prl')
3067 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
3071 /^-unreg$/ && do { $UNREGing = 'u'; next arg; };
3072 /^-funregisterised$/ && do { push(@HsC_flags, $_); next arg; };
3073 /^-fno-asm-mangling$/ && do { $DoAsmMangling = 0; next arg; };
3075 /^-fallow-overlapping-instances$/ && do { push(@HsC_flags, $_); next arg; };
3076 /^-fallow-undecidable-instances$/ && do { push(@HsC_flags, $_); next arg; };
3077 /^-fhistory-size.*$/ && do { push(@HsC_flags, $_); next arg; };
3078 /^-fdicts-strict$/ && do { push(@HsC_flags, $_); next arg; };
3080 && do { push(@HsC_flags, $_);
3082 # -fglasgow-exts implies -syslib exts
3083 &add_syslib('exts');
3088 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
3089 /^-fno-speciali[sz]e$/
3090 && do { $Oopt_DoSpecialise = ''; next arg; };
3093 && do { $Oopt_UsageSPInf = '-fusagesp';
3094 push (@HsC_flags, '-fusagesp-on'); next arg; };
3096 /^-fcompiling-prelude$/ && do { $CompilingPrelude=1; push(@HsC_flags, $_); next arg; };
3098 # Now the foldr/build options, which are *on* by default (for -O).
3101 && do { $Oopt_FoldrBuild = 1;
3105 /^-fno-foldr-build$/
3106 && do { $Oopt_FoldrBuild = 0;
3109 # --------------- Renamer -------------
3112 /^-fno-prune-tydecls$/ && do { push(@HsC_flags, $_); next arg; };
3113 /^-fno-prune-instdecls$/ && do { push(@HsC_flags, $_); next arg; };
3117 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
3118 /^-fvia-[cC]$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
3123 && do { push(@HsC_flags, $_); next arg };
3125 /^-funfold-casms-in-hi-file$/
3126 && do { push(@HsC_flags, $_); next arg };
3128 /^(-fmax-simplifier-iterations)(.*)$/
3129 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2);
3132 /^-fno-pedantic-bottoms$/
3133 && do { $Oopt_PedanticBottoms = ''; next arg; };
3135 /^-fno-pre-inlining$/
3136 && do { push(@HsC_flags, $_); next arg };
3138 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
3139 && do { push(@HsC_flags, $_); next arg; };
3141 /^-funbox-strict-fields$/
3142 && do { push(@HsC_flags, $_); next arg; };
3144 # --------------- Warnings etc. ------
3146 /^-fwarn-(.*)$/ && do { push(@HsC_flags, $_); next arg; };
3148 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
3149 &squashHscFlag("-f$1");
3152 /^-W$/ && do { push(@HsC_flags, @MinusWOpts); next arg; };
3153 /^-Wall$/ && do { push(@HsC_flags, @MinusWallOpts); next arg; };
3154 /^(-Wnot|w)$/ && do { foreach (@Hsc_flags) {
3155 /^-fwarn-(.*)$/ && do { $_=''; };
3157 push(@HsC_antiflags, @StandardWarnings);
3160 # --------------- fun stuff ----------------
3162 /^-freport-compile$/ && do { push(@HsC_flags, $_); next arg; };
3164 # --------------- platform specific flags (for gcc mostly) ----------------
3166 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes,
3167 # for 2.6.x..?, does not apply for 2.7.2
3169 unshift(@CcBoth_flags, ( $_ ));
3172 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
3173 && do { # for GCC for SPARCs
3174 unshift(@CcBoth_flags, ( $_ ));
3177 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
3178 $StolenX86Regs = $1;
3181 #*************** ... and lots of debugging ones (form: -d* )
3183 # -d(no-)core-lint is done this way so it is turn-off-able.
3184 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
3185 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
3186 # Ditto for USP lint
3187 /^-dusagesp-lint/ && do { $USPLint = '-dusagesp-lint'; next arg; };
3188 /^-dno-usagesp-lint/ && do { $USPLint = ''; next arg; };
3189 # Ditto for STG lint
3190 /^-dstg-lint/ && do { $StgLint = '-dstg-lint'; next arg; };
3191 /^-dno-stg-lint/ && do { $StgLint = ''; next arg; };
3193 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
3194 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
3195 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
3196 /^-dshow-rn-stats/ && do { push(@HsC_flags, $_); next arg; };
3197 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
3198 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
3199 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
3200 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
3202 #*************** ... and now all these -R* ones for its runtime system...
3204 /^-Rscale-sizes?(.*)/ && do {
3205 $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1);
3208 /^(-H|-Rmax-heapsize)(.*)/ && do {
3209 local($heap_size) = &grab_arg_arg(*Args,$1, $2);
3210 if ($heap_size =~ /(\d+)[Kk]$/) {
3211 $heap_size = $1 * 1000;
3212 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
3213 $heap_size = $1 * 1000 * 1000;
3214 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
3215 $heap_size = $1 * 1000 * 1000 * 1000;
3217 if ($heap_size <= 0) {
3218 print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n";
3219 $Specific_heap_size = 0;
3221 # if several heap sizes given, take the largest...
3222 } elsif ($heap_size >= $Specific_heap_size) {
3223 $Specific_heap_size = $heap_size;
3225 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n";
3229 /^(-K|Rmax-(stk|stack)size)(.*)/ && do {
3231 local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3);
3232 if ($stk_size =~ /(\d+)[Kk]$/) {
3233 $stk_size = $1 * 1000;
3234 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
3235 $stk_size = $1 * 1000 * 1000;
3236 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
3237 $stk_size = $1 * 1000 * 1000 * 1000;
3239 if ($stk_size <= 0) {
3240 print STDERR "$Pgm: resetting stack-size to zero!!! $stk_size\n";
3241 $Specific_stk_size = 0;
3243 # if several stack sizes given, take the largest...
3244 } elsif ($stk_size >= $Specific_stk_size) {
3245 $Specific_stk_size = $stk_size;
3247 print STDERR "$Pgm: ignoring stack-size-setting option ($flag $stk_size)...not the largest seen\n";
3251 /^-Rgc-stats$/ && do { $CollectingGCstats++;
3252 # the two RTSs do this diff ways; we will try to compensate
3255 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
3257 #---------- C high-level assembler (gcc) -------------------------------
3258 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
3260 # -dgcc-lint is a useful way of making GCC very fussy.
3261 # From alan@spri.levels.unisa.edu.au (Alan Modra).
3262 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
3263 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
3264 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
3266 # inject "#include <wurble>" into the compiler's C output!
3268 /^-#include(.*)/ && do {
3269 local($to_include) = &grab_arg_arg(*Args,'-#include', $1);
3270 push(@CcInjects, "#include $to_include\n");
3273 #---------- Linker (gcc, really) ---------------------------------------
3275 /^-static$/ && do { $Static=1; push(@Ld_flags, $_); next arg; };
3276 /^-no-hs-main$/ && do { $NoHaskellMain=1; next arg; };
3278 #---------- mixed cc and linker magic ----------------------------------
3279 # this optimisation stuff is finally sorted out later on...
3281 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
3283 /^-O[1-2]?$/ && do {
3284 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
3285 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
3287 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
3290 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
3292 /^-Ofile(.*)/ && do {
3294 local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1);
3295 @HsC_minusO3_flags = ();
3297 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
3300 s/\#.*//; # death to comments
3301 s/[ \t]+//g; # death to whitespace
3302 next if /^$/; # ditto, blank lines
3303 s/([()*{}])/\\$1/g; # protect shell metacharacters
3305 push(@CcBoth_flags, $1);
3307 push(@HsC_minusO3_flags, $_);
3313 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
3314 # in the consistency info
3318 #---------- linking .a file --------------------------------------------
3320 /^-Main(.*)/ && do {
3321 # specifies main or mainPrimIO to be linked
3325 #---------- catch unrecognized flags -----------------------------------
3328 print STDERR "$Pgm: unrecognised option: $_\n";
3334 } # end of processArgs