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 $Haskell1Version = 5; # i.e., Haskell 1.4
367 # Cpp symbols defined when we're processing Haskell source.
370 ( "-D__HASKELL1__=$Haskell1Version"
371 , "-D__GLASGOW_HASKELL__=$ProjectVersionInt"
373 , "-D__CONCURRENT_HASKELL__"
377 @SysLibrary_dir = ( ( $INSTALLING ) #-syslib things supplied by the system
379 : ( "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR"
380 , "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/gmp"
381 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std"
382 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std/cbits"
386 $TopClosureFile # defaults to 1.2 one; will be mangled later
388 # ( $INSTALLING) ? "$InstLibDirGhc/TopClosureXXXX.o"
389 # : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/main/TopClosureXXXX.o";
391 # make depend for Haskell
393 = ( $INSTALLING ) ? "$InstLibExecDirGhc/mkdependHS"
394 : "$TopPwd/$CURRENT_DIR/$GHC_UTILS_DIR/mkdependHS/mkdependHS";
396 @MkDependHS_flags = ();
398 # do_link flag should not be reset while rescanning the cmd-line.
400 $Specific_output_dir = ''; # set by -odir <dir>
401 $Specific_output_file = ''; # set by -o <file>; "-" for stdout
404 Function to initialise the per-compilation-unit globals that
405 are used to guide and control the invocation of the different phases.
408 sub initDriverGlobals {
410 # reset the following options:
411 # RTS flags to use while compiling
417 The optimisations/etc to be done by the compiler are {\em normally}
418 expressed with a \tr{-O} (or \tr{-O2}) flag, or by its absence.
421 $OptLevel = 0; # no -O == 0; -O == 1; -O2 == 2; -Ofile == 3
422 $MinusO2ForC = 0; # set to 1 if -O2 should be given to C compiler
423 $StolenX86Regs = 4; # **HACK*** of the very worst sort
428 # The SplitMarker is the string/character used to mark end of element
431 @Import_dir = ('.'); #-i things
432 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
434 @UserLibrary_dir= (); #-L things;...
435 @UserLibrary = (); #-l things asked for by the user
437 @SysLibrary = (); # will be built up as we go along
440 We are given a list of files with various presumably-known suffixes
441 (unknown-suffix files go straight to the linker). For each file, we
442 begin by assuming that we'll run every phase over it. However: (1)
443 global flags (\tr{-c}, \tr{-S}, etc.) tell us not to run any phase
444 past a certain point; and (2) the file's suffix tells us what phase to
445 start with. Linking is weird and kept track of separately.
447 Here are the initial defaults applied to all files:
449 $Cpp_flag_set = 0; # (hack)
450 $Only_preprocess_C = 0; # pretty hackish
451 $Only_preprocess_hc = 0; # ditto
452 $Only_generate_deps = 0; # ""
453 $Only_generate_dll = 0;
454 $PostprocessCcOutput = 0;
457 # static = 0 => produce code for DLLs (when compiling & linking.)
459 $Static = 0 if ($EnableWin32DLLs eq 'YES');
461 # native code-gen or via C?
462 $HaveNativeCodeGen = $GhcWithNativeCodeGen;
463 $HscOut = '-C='; # '-C=' ==> .hc output; '-S=' ==> .s output; '-N=' ==> neither
465 if ($HaveNativeCodeGen ne 'YES') && $TargetPlatform =~ /^(alpha)-/;
466 # TEMP: disable x86 & Sparc if $HaveNativeCodeGen && $TargetPlatform =~ /^(i386|alpha|sparc)-/;
467 $ProduceHi = '-hifile=';
473 $CollectingGCstats = 0;
474 $CollectGhcTimings = 0;
475 $DEBUGging = ''; # -DDEBUG and all that it entails (um... not really)
476 $PROFing = ''; # set to p or e if profiling
477 $PROFgroup = ''; # set to group if an explicit -Ggroup specified
478 $PROFauto = ''; # set to relevant hsc flag if -auto or -auto-all
479 $PROFcaf = ''; # set to relevant hsc flag if -caf-all
480 $PROFdict = ''; # set to relevant hsc flag if -auto-dicts
481 $PROFignore_scc = ''; # set to relevant parser flag if explicit sccs ignored
482 $UNPROFscc_auto = ''; # set to relevant hsc flag if forcing auto sccs without profiling
483 $TICKYing = ''; # set to t if compiling for ticky-ticky profiling
484 $PARing = ''; # set to p if compiling for PAR
485 $GRANing = ''; # set to g if compiling for GRAN
486 $UNREGing = ($GhcWithRegisterised eq 'YES') ? '' : 'u';
487 $Specific_hi_file = ''; # set by -ohi <file>; "-" for stdout
488 $Specific_dump_file = ''; # set by -odump <file>; "-" for stdout
489 $Using_dump_file = 0;
491 $Osuffix = ''; # default: use the normal suffix for that kind of output
493 $HiSuffix_prelude = '';
495 $Do_recomp_chkr = 0; # don't use the recompilatio checker unless asked
496 $Do_cc = -1; # a MAGIC indeterminate value; will be set to 1 or 0.
499 $Keep_hc_file_too = 0;
500 $Keep_s_file_too = 0;
501 $UseGhcInternals = 0; # if 1, may use GHC* modules
503 $DoAsmMangling = 1; # on by default, off by -fno-asm-mangling
505 $Dump_parser_output = 0;
507 $Dump_asm_splitting_info = 0;
508 $NoImplicitPrelude = 0;
509 # 1 => don't tell the linker to hoist in PrelMain.Main, as an
510 # external main is provided instead.
513 } # end of initDriverGlobals (Sigh)
515 # we split the argv passed to the driver into three:
520 # and files to be linked...
526 # cmd line options prefixing the unit we're compiling
531 We inject consistency-checking information into \tr{.hc} files (both
532 when created by the Haskell compiler and when compiled by the C
533 compiler), so that we can check that an executable is made from
534 consistently-built pieces. (The check is normally done just after
535 linking.) The checking is done by introducing/munging
536 \tr{what(1)}-style strings. Anyway, here are the relevant global
537 variables and their defaults:
539 $LinkChk = 0; # set to 0 if the link check should *not* be done
541 # major & minor version numbers; major numbers must always agree;
542 # minor disagreements yield a warning.
543 $HsC_major_version = $HscMajorVersion;
544 $HsC_minor_version = $HscMinorVersion;
545 $Cc_major_version = $CcMajorVersion;
546 $Cc_minor_version = $CcMinorVersion;
548 # options: these must always agree
549 $HsC_consist_options = ''; # we record, in this order:
550 # Build tag; debugging?
551 $Cc_consist_options = ''; # we record, in this order:
552 # Build tag; debugging?
555 %************************************************************************
557 \section[Driver-parse-argv]{Munge the command-line options}
559 %************************************************************************
561 Now slurp through the arguments.
564 &initDriverGlobals();
565 &splitCmdLine(@ARGV);
566 # Run through the cmd-line first time.
567 &processArgs(@Cmd_opts);
569 # Check to see if driver is only in the business
570 # to generate dependencies
571 if ( $Status == 0 && $Only_generate_deps ) {
573 push (@MkDependHS_flags, "-o$Osuffix") if $Osuffix;
574 push (@MkDependHS_flags, "-s$BuildTag") if $BuildTag;
575 # They're not (currently) needed, but we need to quote any -#include options
576 foreach (@Cmd_opts) {
577 s/-#include.*$/'$&'/g;
579 local($to_do) = "$MkDependHS @MkDependHS_flags @HsSourceCppOpts -- @Cmd_opts -- @Input_file" ;
580 &run_something($to_do, 'Haskell dependencies');
584 # ..or just to construct a (Haskell) DLL.
585 if ( $Status == 0 && $Only_generate_dll && $EnableWin32DLLs ) {
591 # if there are several input files,
592 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
593 # (except if linking, of course)
595 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
596 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
597 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
598 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
599 print STDERR "\tPerhaps the -odir option will do what you want.\n";
604 # check for various pathological -o and -odir combinations...
605 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
606 if ($Specific_output_file eq '-') {
607 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
609 } else { # amalgamate...
610 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
611 # ToDo: check we haven't got a junk name now...
612 $Specific_output_dir = ''; # reset
616 # crash and burn if there were errors
618 print STDERR $ShortUsage;
623 %************************************************************************
625 \section[Driver-post-argv-mangling]{Setup after reading options}
627 %************************************************************************
629 %************************************************************************
631 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
633 %************************************************************************
635 We come now to the default ``wads of options'' that are turned on by
636 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
637 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
640 The user can also specify his/her own list of options in a file; in
641 that case, the work is already done (see stuff about @minusO3@,
644 GHC allows very precise control of what happens during a compilation.
645 Core-to-Core and STG-to-STG passes can be run in any order, as many
646 times as you like. Individual transformations can be turned on or
649 Sadly, however, there are some interdependencies \& Things You Must
650 Not Do. Here is the list.
654 \item[\tr{-fspecialise}:]
655 The specialiser must have dependency-analysed input; but if you run
656 the simplifier to do this, you must not let it toss away unused
657 bindings! (The typechecker conveys some specialisation info via
658 ``unused'' bindings...)
660 \item[\tr{-ffloat-inwards}:]
661 Floating inwards should be done before strictness analysis, because
662 the latter will give better results.
664 \item[\tr{-fstatic-args}:]
665 The static-arguments-transformation pass {\em must} have the
666 simplifier run right after it.
668 \item[\tr{-fcalc-inlinings[12]}:]
669 Not required, but there may be slight gains by re-simplifying after
670 this is done. (You could then \tr{-fcalc-inlinings} again, just for
673 \item[\tr{-ffull-laziness}:]
674 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
675 that's run. (Um, well, howzabout the simplifier just once more...)
680 \item[\tr{-fupdate-analysis}:]
681 It really really wants to be the last STG-to-STG pass that is run.
686 sub setupOptimiseFlags {
688 # this pass-ordering sequence was agreed by Simon and Andr\'e
689 # (WDP 94/07, 94/11).
696 $Oopt_MaxSimplifierIterations,
700 $Oopt_FinalStgProfilingMassage
703 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
707 '-fdo-eta-reduction',
708 '-fdo-lambda-eta-expansion',
712 $Oopt_PedanticBottoms,
714 # initial simplify: mk specialiser happy: minimum effort please
718 '-finline-phase0', # Don't inline anything till full laziness has bitten
719 # In particular, inlining wrappers inhibits floating
720 # e.g. ...(case f x of ...)...
721 # ==> ...(case (case x of I# x# -> fw x#) of ...)...
722 # ==> ...(case x of I# x# -> case fw x# of ...)...
723 # and now the redex (f x) isn't floatable any more
724 '-fmax-simplifier-iterations2',
727 # Specialisation is best done before full laziness
728 # so that overloaded functions have all their dictionary lambdas manifest
729 ($Oopt_DoSpecialise) ? ( $Oopt_DoSpecialise, ) : (),
735 # # Run the simplifier before specialising, so that overloaded functions
736 # # look like f = \d -> ...
737 # # (Full laziness may lift out something hiding the \d
739 # '-fmax-simplifier-iterations1',
746 # Want to run with inline phase 1 after the specialiser to give
747 # maximum chance for fusion to work before we inline build/augment
748 # in phase 2. This made a difference in 'ansi' where an overloaded
749 # function wasn't inlined till too late.
750 $Oopt_MaxSimplifierIterations,
753 $Oopt_UsageSPInf, # infer usage information here in case we need it later.
754 # (add more of these where you need them --KSW 1999-04)
758 # Need inline-phase2 here so that build/augment get
759 # inlined. I found that spectral/hartel/genfft lost some useful
760 # strictness in the function sumcode' if augment is not inlined
761 # before strictness analysis runs
764 $Oopt_MaxSimplifierIterations,
774 $Oopt_MaxSimplifierIterations,
775 # No -finline-phase: allow all Ids to be inlined now
778 '-fcse', # CSE must immediately follow a simplification pass, because it relies
779 # on the no-shadowing invariant. See comments at the top of CSE.lhs
781 '-ffull-laziness', # nofib/spectral/hartel/wang doubles in speed if you
782 # do full laziness late in the day. It only happens
783 # after fusion and other stuff, so the early pass doesn't
784 # catch it. For the record, the redex is
785 # f_el22 (f_el21 r_midblock)
788 # Case-liberation for -O2. This should be after
789 # strictness analysis and the simplification which follows it.
793 # : "-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 ]" ),
795 # Final clean-up simplification:
799 $Oopt_MaxSimplifierIterations,
800 # No -finline-phase: allow all Ids to be inlined now
807 $Oopt_FinalStgProfilingMassage,
813 # SPECIAL FLAGS for -O2
815 '-fupdate-analysis', # virtually useless; relegated to -O2
822 Sort out what we're going to do about optimising. First, the @hsc@
823 flags and regular @cc@ flags to worry about:
825 if ( $OptLevel <= 0 ) {
827 # for this level, we tell the parser -fignore-interface-pragmas
828 push(@HsC_flags, '-fignore-interface-pragmas');
829 # and tell the compiler not to produce them
830 push(@HsC_flags, '-fomit-interface-pragmas');
832 &add_Hsc_flags( @HsC_minusNoO_flags );
833 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
835 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
837 &add_Hsc_flags( @HsC_minusO_flags );
838 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
839 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
840 # but it *is* useful in compiling the garbage collector.
842 } else { # -Ofile, then...
844 &add_Hsc_flags( @HsC_minusO3_flags );
845 push(@HsC_flags, $Oopt_FinalStgProfilingMassage) if $Oopt_FinalStgProfilingMassage;
847 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
850 } # setupOptimiseFlags
854 %************************************************************************
856 \subsection{Check for consistency, etc.}
858 %************************************************************************
860 Sort out @$BuildTag@, @$PROFing@, @$PARing@,
861 @$GRANing@, @$TICKYing@, @UNREGing@:
863 sub setupBuildFlags {
866 # PROFILING stuff after argv mangling:
868 # add -auto sccs even if not profiling !
869 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
872 push(@HsC_flags, $PROFauto) if $PROFauto;
873 push(@HsC_flags, $PROFcaf) if $PROFcaf;
874 push(@HsC_flags, $PROFdict) if $PROFdict;
876 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
878 # Ignore user sccs when auto annotating, but warn when doing so.
879 $PROFignore_scc = '-W' if $PROFauto;
881 #if ( $BuildTag ne '' ) {
882 # local($b) = $BuildDescr{$BuildTag};
883 # if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
884 # if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
885 # if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
887 # # ok to have a user-way profiling build
888 # # eval the profiling opts ... but leave user-way BuildTag
889 # if ($PROFing eq 'p') { &processArgs(split(' ', $SetupOpts{'_p'})); } # eval($EvaldSetupOpts{'_p'}); }
891 if ( $PROFing eq 'p' ) {
892 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
893 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
894 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
897 } elsif ( $PARing eq 'p' ) {
898 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
899 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
902 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
903 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
907 } elsif ( $GRANing eq 'g' ) {
908 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
911 } elsif ( $TICKYing eq 't' ) {
914 } elsif ( $UNREGing eq 'u' ) {
915 if ($GhcWithRegisterised eq 'YES') {
921 After the sanity checks, add flags to the necessary parts of the driver pipeline:
924 if ( $BuildTag ne '' ) { # something other than normal sequential...
926 local($Tag) = "${BuildTag}";
927 $Tag =~ s/_//; # move the underscore to the back
929 $HscOut = '-C='; # must go via C
930 &processArgs(split(' ', $SetupOpts{$BuildTag}));
931 # eval($EvaldSetupOpts{$BuildTag});
935 Decide what the consistency-checking options are in force for this run:
938 $HsC_consist_options = "${BuildTag},${DEBUGging}";
939 $Cc_consist_options = "${BuildTag},${DEBUGging}";
942 # Funny place to put it, but why not.
944 if ( $HiSuffix_prelude eq '' ) {
946 if ($CompilingPrelude) {
947 $HiSuffix_prelude = "$HiSuffix" if $CompilingPrelude;
949 local($Tag) = "${BuildTag}";
952 $Tag = "${Tag}_" if $Tag ne '';
953 $HiSuffix_prelude="${Tag}hi";
959 %************************************************************************
961 \subsection{Add on machine-specific C-compiler flags}
963 %************************************************************************
965 Shove on magical machine-specific options. We use \tr{unshift} to
966 stick them on the {\em front} of the arrays, so that ``later''
967 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
969 Note: a few ``always apply'' flags were set at the very beginning.
974 if ($TargetPlatform =~ /^alpha-/) {
975 unshift(@CcBoth_flags, ('-static'));
977 } elsif ($TargetPlatform =~ /^hppa/) {
978 unshift(@CcBoth_flags, ('-static'));
980 # We don't put in '-mlong-calls', because it's only
981 # needed for very big modules (sigh), and we don't want
982 # to hobble ourselves further on all the other modules
985 # [Dated comment (gcc-2.6.x?), -mlong-calls is no longer
986 # a supported gcc HPPA flag]
987 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
988 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
989 # (very nice, but too bad the HP /usr/include files don't agree.)
991 } elsif ($TargetPlatform =~ /^i386-/) {
992 # -fno-defer-pop : basically the same game as for m68k
994 # -fomit-frame-pointer : *must* in .hc files; because we're stealing
995 # the fp (%ebp) for our register maps.
997 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
998 unshift(@CcRegd_flags_hc, '-fomit-frame-pointer');
999 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1001 unshift(@CcBoth_flags, ('-DDONT_WANT_WIN32_DLL_SUPPORT')) if ($Static);
1003 } elsif ($TargetPlatform =~ /^m68k-/) {
1004 # -fno-defer-pop : for the .hc files, we want all the pushing/
1005 # popping of args to routines to be explicit; if we let things
1006 # be deferred 'til after an STGJUMP, imminent death is certain!
1008 # -fomit-frame-pointer : *don't*
1009 # It's better to have a6 completely tied up being a frame pointer
1010 # rather than let GCC pick random things to do with it.
1011 # (If we want to steal a6, then we would try to do things
1012 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1014 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1015 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1016 # maybe gives reg alloc a better time
1017 # also: -fno-defer-pop is not sufficiently well-behaved without it
1019 } elsif ($TargetPlatform =~ /^mips-/) {
1020 unshift(@CcBoth_flags, ('-static'));
1022 } elsif ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1023 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1024 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1025 } elsif ($TargetPlatform =~ /^sparc-/) {
1027 } # end of setupMachOpts
1030 %************************************************************************
1032 \subsection{Set up for warnings}
1034 %************************************************************************
1036 Several warnings are turned on by default. These are supposed to be
1037 the 'I'm pretty sure you've made a mistake here' kind of warnings.
1038 The rest are turned on by the -W and -Wall options, or individually
1039 via their -fwarn and -fno-warn flags.
1042 sub setupWarningFlags {
1043 &add_Hsc_flags( @StandardWarnings );
1047 Same unshifting magic, but for special linker flags.
1049 The configure script determines whether the object file symbol tables
1050 have a leading underscore, and sets @LeadingUnderscore@ accordingly.
1051 (The driver script `sees' the setting of the @LeadingUnderscore@
1052 by having the Makefile prepend it).
1056 local($uscore) = ( ${LeadingUnderscore} eq 'YES' ) ? '_' : '';
1059 (($Ld_main) ? ( '-u', "${uscore}Main_" . $Ld_main . '_closure' ) : ()));
1061 # things that are referenced by the RTS - make sure that we pull 'em in
1063 ( '-u', "${uscore}PrelBase_Izh_static_info"
1064 ,'-u', "${uscore}PrelBase_Czh_static_info"
1065 ,'-u', "${uscore}PrelBase_Fzh_static_info"
1066 ,'-u', "${uscore}PrelBase_Dzh_static_info"
1067 ,'-u', "${uscore}PrelAddr_Azh_static_info"
1068 ,'-u', "${uscore}PrelAddr_Wzh_static_info"
1069 ,'-u', "${uscore}PrelAddr_I64zh_static_info"
1070 ,'-u', "${uscore}PrelAddr_W64zh_static_info"
1071 ,'-u', "${uscore}PrelStable_StablePtr_static_info"
1072 ,'-u', "${uscore}PrelBase_Izh_con_info"
1073 ,'-u', "${uscore}PrelBase_Czh_con_info"
1074 ,'-u', "${uscore}PrelBase_Fzh_con_info"
1075 ,'-u', "${uscore}PrelBase_Dzh_con_info"
1076 ,'-u', "${uscore}PrelAddr_Azh_con_info"
1077 ,'-u', "${uscore}PrelAddr_Wzh_con_info"
1078 ,'-u', "${uscore}PrelAddr_I64zh_con_info"
1079 ,'-u', "${uscore}PrelAddr_W64zh_con_info"
1080 ,'-u', "${uscore}PrelStable_StablePtr_con_info"
1081 ,'-u', "${uscore}PrelBase_False_static_closure"
1082 ,'-u', "${uscore}PrelBase_True_static_closure"
1083 ,'-u', "${uscore}PrelPack_unpackCString_closure"
1084 ,'-u', "${uscore}PrelException_stackOverflow_closure"
1085 ,'-u', "${uscore}PrelException_heapOverflow_closure"
1086 ,'-u', "${uscore}PrelException_NonTermination_static_closure"
1088 if (!$NoHaskellMain) {
1089 unshift (@Ld_flags,'-u', "${uscore}PrelMain_mainIO_closure");
1091 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1092 # sometimes we have lots of toc entries...
1093 # unshift(@Ld_flags, ('-Xlinker -bbigtoc -Xlinker -bnoquiet'));
1094 unshift(@Ld_flags, ('-Xlinker -bbigtoc'));
1098 } # end of setupLinkOpts
1102 %************************************************************************
1104 \subsection{Set up include paths and system-library enslurpment}
1106 %************************************************************************
1108 Now that we know what garbage-collector, etc., are required, we can
1109 finalise our list of libraries to slurp through, and generally Get
1114 # default includes must be added AFTER option processing
1115 if ( ! $INSTALLING ) {
1116 push (@Include_dir, "$TopPwd/${CURRENT_DIR}/${GHC_INCLUDE_DIR}");
1118 push (@Include_dir, "$InstLibDirGhc/includes");
1119 push (@Include_dir, "$InstLibDirGhc/includes");
1121 } # end of setupIncPaths
1126 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1129 foreach $f (@SysLibrary) {
1130 next if $f =~ /_cbits/;
1131 $f .= $BuildTag if $f =~ /^-lHS/;
1134 # Push library HSrts, plus boring clib bit
1135 push(@SysLibrary, "-lHSrts${BuildTag}");
1138 # RTS compiled with cygwin32, uses the WinMM API
1139 # to implement the itimers, since cygwin.dll does not
1140 # support it. Only reqd. for `ways' that use itimers.
1142 push(@SysLibrary, '-lwinmm') if $TargetPlatform eq 'i386-unknown-cygwin32';
1143 # Note: currently only tested with mingw, may cause conflicts when linking
1145 push(@SysLibrary, '-lwsock32') if ($TargetPlatform =~ /-(mingw32|cygwin32)$/);
1147 # Push the pvm libraries
1148 if ($BuildTag eq '_mp') {
1149 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1150 push(@SysLibrary, "-L$pvmlib", '-lgpvm3', '-lpvm3');
1151 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1152 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1153 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1154 push(@SysLibrary, '-lsocket', '-lnsl');
1158 # Push the GNU multi-precision arith lib; and the math library
1160 # If this machine has GMP already installed, then we'll get the installed
1161 # lib here, because presumably the one in the tree won't have been built.
1163 if ($LibGmp eq 'not-installed') {
1164 push(@SysLibrary, "-lgmp");
1166 push(@SysLibrary, "-l$LibGmp");
1169 push(@SysLibrary, '-lm') if !( $TargetPlatform =~ /^.*(cygwin32|mingw32)$/ );
1172 %************************************************************************
1174 \subsection{Check that this system was built to do what we are asking}
1176 %************************************************************************
1178 Before continuing we check that the appropriate build is available.
1181 #die "$Pgm: no BuildAvail?? $BuildTag\n" if $BuildDescr{$BuildTag} eq '' ; # sanity
1183 if ( $BuildDescr{$BuildTag} eq '' ) {
1184 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1185 "' \"build\" is not available with your GHC setup.\n";
1186 print STDERR "(It was not configured for it at your site.)\n";
1187 print STDERR $ShortUsage;
1191 } # end of setupSyslibs
1195 %************************************************************************
1197 \subsection{Final miscellaneous setup bits before we start going}
1199 %************************************************************************
1201 Record largest specific heapsize, if any.
1203 sub setupHeapStackSize {
1204 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1205 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1206 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1207 push(@HsC_rts_flags, "-K$Specific_stk_size");
1211 If no input or link files seen, then we let 'em feed in stdin; this is
1212 mainly for debugging.
1216 if ($#Input_file < 0 && $#Link_file < 0) {
1217 @Input_file = ( '-' );
1219 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1220 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n" if -t;
1221 while (<STDIN>) { print INF $_; }
1222 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1227 Tell the world who we are, if they asked.
1229 print STDERR "${ProjectName}, version ${ProjectVersion}, patchlevel ${ProjectPatchLevel}\n"
1233 %************************************************************************
1235 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1237 %************************************************************************
1239 Process the input files; don't continue with linking if there are
1240 problems (global variable @$Status@ non-zero).
1242 foreach $ifile (@Input_file) {
1243 &ProcessInputFile($ifile);
1246 # don't link if there were errors...
1247 if ( $Status > 0 ) {
1248 print STDERR $ShortUsage;
1253 # Link if appropriate.
1254 &runLinker() if $Do_lnkr;
1256 # that... that's all, folks!
1258 exit $Status; # will still be 0 if all went well
1261 %************************************************************************
1263 \section[Driver-do-one-file]{How to process a single input file}
1265 %************************************************************************
1268 sub ProcessInputFile {
1269 local($ifile) = @_; # input file name
1270 local($ifile_root); # root of or basename of input file
1271 local($ofile_target); # ultimate output file we hope to produce
1272 # from input file (need to know for recomp
1273 # checking purposes)
1274 local($hifile_target);# ditto (but .hi file)
1275 local($ofile_c_stub_target);
1276 local($ofile_h_stub_target);
1279 Handle the weirdity of input from stdin.
1281 if ($ifile ne '-') {
1282 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1283 $ofile_target = # may be reset later...
1284 ($Specific_output_file ne '' && ! $Do_lnkr)
1285 ? $Specific_output_file
1286 : &odir_ify($ifile_root, 'o');
1287 $hifile_target= ($Specific_hi_file ne '')
1289 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1290 # NB: may change if $ifile_root isn't module name (??)
1291 ($ofile_c_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.c/;
1292 ($ofile_h_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.h/;
1294 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1295 $ifile_root = '_stdin';
1296 $ofile_target = '_stdout'; # gratuitous?
1297 $hifile_target= '_stdout'; # ditto?
1301 We need to decide what phases of the compilation system we will run
1302 over this file. The defaults are the ones established when processing
1303 flags. (That established what the last phase run for all files is.)
1305 We do the pre-recompilation-checker phases here; the rest later.
1309 Look at the suffix and decide what initial phases of compilation may
1310 be dropped off for this file. Also the rather boring business of
1311 which files are coming-in/going-out.
1313 Again, we'll do the post-recompilation-checker parts of this later.
1315 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1316 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1319 # names of the files to stuff between phases
1320 # defaults are temporaries
1321 local($in_lit2pgm) = $ifile;
1322 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1323 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1324 local($hsc_hi) = "$Tmp_prefix.hi";
1325 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1326 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1327 local($as_out) = $ofile_target;
1329 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
1331 # OK, let's strip off some literate junk..
1333 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
1335 $lit2pgm_hscpp = $ifile;
1341 # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas
1342 &check_for_source_options($lit2pgm_hscpp,$ifile);
1344 # Options found in the source file take a back seat, i.e., we scan
1345 # them first. Only process the command line again if source file
1346 # contained anything of interest *or* there's more than one
1347 # input file (we have to reset the options).
1349 if ( $#Input_file >= 0 || $#File_options >= 0) {
1350 #@File_options = (@File_options, @Cmd_opts);
1352 # Now process the command line
1353 &initDriverGlobals();
1354 &processArgs((@File_options,@Cmd_opts));
1355 print STDERR "\nEffective command line: " .
1356 join(' ',(@File_options,@Cmd_opts)) . "\n" if $Verbose;
1359 # Having got the effective command line scanned, set up
1360 # the various options in prep for some real work.
1362 # check the sanity of the BuildTag we're about to use,
1363 # and if needs be, add some more flags and setup to
1364 # the different phases.
1367 &setupOptimiseFlags();
1370 &setupWarningFlags();
1371 &setupHeapStackSize();
1374 # These two variables need to be set after the
1375 # command-line has been processed and the build options
1376 # have be seen set up. This is because command-line options
1377 # can control whether to compile vias C or not.
1379 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1381 : ( ($HscOut eq '-C=') ? 1 : 0 );
1382 local($do_as) = $Do_as;
1383 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1384 local($hsc_out_c_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.c" : "";
1385 local($hsc_out_h_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.h" : "";
1387 if ($Only_preprocess_hc) { # stop after having run $Cc -E
1390 if ($Only_preprocess_C) { # stop after having run $hscpp
1391 $do_hsc=0; $do_cc = 0; $do_as=0;
1392 } elsif ($ifile =~ /.lhs$/ || $ifile =~ /.hs$/ ) {
1394 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
1395 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1397 $hsc_out_c_stub = '';
1398 $hsc_out_h_stub = '';
1399 } elsif ($ifile =~ /\.c$/) {
1400 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1401 $hsc_out = $ifile; $is_hc_file = 0;
1402 $hsc_out_c_stub = '';
1403 $hsc_out_h_stub = '';
1404 } elsif ($ifile =~ /\.[sS]$/) {
1405 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
1407 } else { # don't know what it is, but nothing to do herein...
1408 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
1411 # hack to avoid running hscpp
1412 $HsCpp = $Cat if ! $Cpp_flag_set;
1414 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) if $do_hscpp;
1418 We now think about whether to run hsc/cc or not (when hsc produces .s
1419 stuff, it effectively takes the place of both phases).
1420 To get the output file name right: for each phase that we are {\em
1421 not} going to run, set its input (i.e., the output of its preceding
1422 phase) to @"$ifile_root.<suffix>"@.
1425 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
1428 # Warning issued if -keep-hc-file-too is used without
1429 # -fvia-C (or the equivalent)
1431 if ( $HscOut ne '-C=' && $Keep_hc_file_too ) {
1432 print STDERR "$Pgm: warning: Native code generator to be used, -keep-hc-file-too will be ignored\n";
1435 if (! $do_cc && ! $do_as) { # stopping after hsc
1436 $hsc_out = ($Specific_output_file ne '')
1437 ? $Specific_output_file
1438 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
1440 $ofile_target = $hsc_out; # reset
1443 if (! $do_as) { # stopping after gcc (or hsc)
1444 $cc_as = ($Specific_output_file ne '')
1445 ? $Specific_output_file
1446 : &odir_ify($ifile_root, ( $Only_preprocess_hc ) ? 'i' : 's');
1448 $ofile_target = $cc_as; # reset
1454 Now the Haskell compiler, C compiler, and assembler
1458 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
1459 $ofile_target, $hifile_target,
1460 $going_interactive);
1463 if (-f $hsc_out_h_stub) {
1464 &run_something("cp $hsc_out_h_stub $ofile_h_stub_target", 'Copy foreign export header file');
1467 if (-f $hsc_out_c_stub) {
1468 &run_something("rm -f $ofile_c_stub_target && echo '#include \"${ofile_h_stub_target}\"' > $ofile_c_stub_target && cat $hsc_out_c_stub >> $ofile_c_stub_target", 'Copy foreign export C stubs');
1469 local ($hsc_out_s_stub);
1470 local ($hsc_out_o_stub);
1471 ($ofile_s_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$/\.s/;
1472 ($ofile_o_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$/\.o/;
1473 &runGcc (0, $ofile_c_stub_target, $ofile_s_stub_target);
1474 &runAs ($ofile_o_stub_target, $ofile_s_stub_target);
1476 # Bring the C stub protos into scope when compiling the .hc file.
1478 push (@CcInjects, "#include \"${hsc_out_h_stub}\"\n");
1479 # Hack - ensure that the stub .h file is included in the OPTIONS section
1480 # if the .hc file is saved.
1481 push (@File_options, "-#include \"${ofile_h_stub_target}\"\n");
1486 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
1487 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root) if ! $Only_preprocess_hc;
1490 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
1492 # save a copy of the .s file..
1493 &saveIntermediate($ifile_root , "s" , $cc_as) if ($do_as && $Keep_s_file_too);
1494 &runAs($as_out, $ifile_root) if $do_as;
1497 Finally, decide what to queue up for linker input.
1499 # tentatively assume we will eventually produce linker input:
1500 push(@Link_file, &odir_ify($ifile_root, 'o'));
1502 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
1504 if ( $ifile !~ /\.(lhs|hs|hc|c|s|a|S)$/ && $ifile !~ /_hc$/ ) {
1505 # There's sometimes confusion regarding .hi files; users
1506 # supplying them on the command line.
1507 if ( $ifile =~ /\.hi$/ ) {
1508 print STDERR "$Pgm: warning: found `$ifile' on command line; interface files should not be supplied here - ignoring it.\n";
1510 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n";
1512 # oops; we tentatively pushed the wrong thing; fix & do the right thing
1513 pop(@Link_file); push(@Link_file, $ifile);
1517 } # end of ProcessInputFile
1520 %************************************************************************
1522 \section[Driver-run-phases]{Routines to run the various phases}
1524 %************************************************************************
1528 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
1532 # Only add #line pragma if we're going to need it.
1533 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && " if ($Cpp_flag_set);
1534 $to_do .= "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
1536 push(@Files_to_tidy, $lit2pgm_hscpp );
1538 &run_something($to_do, 'literate pre-processor');
1544 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
1548 # Strictly speaking, echoing of the following line pragma is only required
1549 # on non-delit'ed input, as we've already added it during de-lit. However,
1550 # hscpp will then add a {-# LINE 1 "$lit2pgm_hsc" -} to the top of the file,
1551 # which is not very informative (but harmless). Hence, we uniformly have
1552 # {-# LINE 1 "$in_lit2pgm" #-} as the first line to all cpp'ed hsc input.
1554 $to_do = "echo '{-# LINE 1 \"$in_lit2pgm\" -}' > $hscpp_hsc && ";
1556 if ($HsCpp eq $Cat) {
1557 $to_do .= "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
1558 push(@Files_to_tidy, $hscpp_hsc );
1559 &run_something($to_do, 'Ineffective C pre-processor');
1561 local($includes) = '-I' . join(' -I',@Include_dir);
1562 $to_do .= "$HsCpp $Verbose @HsCpp_flags @HsSourceCppOpts $includes $lit2pgm_hscpp >> $hscpp_hsc";
1563 push(@Files_to_tidy, $hscpp_hsc );
1564 &run_something($to_do, 'Haskellised C pre-processor');
1567 if ( $Only_preprocess_C ) {
1568 $to_do = "$Cat $hscpp_hsc";
1569 &run_something($to_do, '');
1577 sub runHscAndProcessInterfaces {
1578 local($ifile, $hscpp_hsc, $ifile_root,
1579 $ofile_target, $hifile_target,
1580 $going_interactive) = @_;
1582 # $ifile is the original input file
1583 # $hscpp_hsc post-unlit, post-cpp, etc., input file
1584 # $ifile_root input filename minus suffix
1585 # $ofile_target the output file that we ultimately hope to produce
1586 # $hifile_target the .hi file ... (ditto)
1588 local($source_unchanged) = 1;
1590 # Check if the source file is up to date relative to the target; in
1591 # that case we say "source is unchanged" and let the compiler bail out
1592 # early if the import usage information allows it.
1594 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
1595 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
1597 # The informational messages below are now conditional on -v being set -- SOF
1598 if ( $ofile_target ne "_stdin.s" && ! -f $ofile_target ) {
1599 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n" if $Verbose;
1600 $source_unchanged = 0;
1603 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
1604 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
1606 if ( $hifile_target ne "_stdout" && ! -f $hifile_target ) {
1607 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n" if $Verbose;
1608 $source_unchanged = 0;
1611 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
1612 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
1614 if ( $ofile_target ne "_stdin.s" && $i_mtime > $o_mtime) {
1615 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n" if $Verbose;
1616 $source_unchanged = 0;
1619 # Tell the compiler which version we're using
1620 push(@HsC_flags, "-fhi-version=${ProjectVersionInt}");
1622 # So if source_unchanged is still "1", we pass on the good news to the compiler
1623 # The -recomp flag can disable this, forcing recompilation
1624 if ($Do_recomp_chkr && $source_unchanged) {
1625 push(@HsC_flags, '-fsource-unchanged');
1628 # Indicate whether we're static or not.
1629 # This will only ever
1630 push(@HsC_flags, '-static') if $Static;
1634 &runHsc($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive);
1636 # See if it bailed out early, saying nothing needed doing.
1637 # We work this out by seeing if it created an output .hi file
1639 if ( ! -f $hsc_hi && $ProduceHi !~ /-nohifile=/ ) {
1640 # Doesn't exist, so we bailed out early.
1641 # Tell the C compiler and assembler not to run
1642 $do_cc = 0; $do_as = 0;
1644 # Update dependency info, touch both object file and
1645 # interface file, so that the following invariant is
1648 # a dependent module's interface file should after recompilation
1649 # checking be newer than the interface files of its imports.
1651 # That is, if module A's interface file changes, then module B
1652 # (which import from A) needs to be checked.
1653 # If A's change does not affect B, which causes the compiler to bail
1654 # out early, we still need to touch the interface file of B. The reason
1655 # for this is that B may export A's interface.
1657 &run_something("touch $ofile_target",
1658 "Touch $ofile_target, to propagate dependencies") if $HscOut ne '-N=';
1659 &run_something("touch $hifile_target",
1660 "Touch $hifile_target, to propagate dependencies") if $ProduceHi =~ /-nohifile=/ ;
1664 # Didn't bail out early (new .hi file) so we thunder on
1666 # If non-interactive, heave in the consistency info at the end
1667 # NB: pretty hackish (depends on how $output is set)
1668 if ( ! $going_interactive ) {
1669 if ( $HscOut eq '-C=' ) {
1670 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
1672 } elsif ( $HscOut eq '-S=' ) {
1673 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
1674 $consist =~ s/,/./g;
1675 $consist =~ s/\//./g;
1676 $consist =~ s/-/_/g;
1677 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
1678 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
1680 &run_something($to_do, 'Pin on Haskell consistency info');
1684 # Interface-handling is important enough to live off by itself
1685 if ( $ProduceHi !~ /-nohifile=/ ) { # If we've produced one, process it.
1686 require('ghc-iface.prl') || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
1687 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
1689 # if we're going to split up object files,
1690 # we inject split markers into the .hc file now
1691 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
1692 &inject_split_markers ( $hsc_out );
1695 # save a copy of the .hc file, even if we are carrying on...
1696 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
1697 &saveIntermediate($ifile_root , "hc" , $hsc_out);
1707 local($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive) = @_;
1709 &makeHiMap() unless $HiMapDone;
1710 push(@HsC_flags, "\"-himap=$HiIncludeString\"");
1711 push(@HsC_flags, "\"-himap-sep=${SplitMarker}\"");
1713 # here, we may produce .hc/.s and/or .hi files
1714 local($output) = '';
1715 #@Files_to_tidy = ();
1717 if ( $going_interactive ) {
1718 # don't need .hi unless we're going to show it on stdout:
1719 $ProduceHi = '-nohifile=' if ! ($HiOnStdout || $Specific_hi_file ne '' );
1720 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
1723 # set up for producing output/.hi; note that flag twiddling
1724 # may mean that nothing will actually be produced:
1725 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out -F=$hsc_out_c_stub -FH=$hsc_out_h_stub";
1726 push(@Files_to_tidy, $hsc_hi, $hsc_out, $hsc_out_c_stub, $hsc_out_h_stub );
1728 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
1729 if ( $CollectingGCstats ) {
1730 push(@HsC_rts_flags, "-S$ifile_root.stat");
1731 push(@Files_to_tidy, "$ifile_root.stat");
1734 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
1735 # emit nofibbish time/bytes-alloc stats to stderr;
1736 # see later .stat file post-processing
1737 print STDERR "warning: both -Rgc-stats and -Rghc-timing used, -Rghc-timing wins." if $CollectingGCstats;
1738 push(@HsC_rts_flags, "-S$Tmp_prefix.stat");
1739 push(@Files_to_tidy, "$Tmp_prefix.stat");
1743 if ($Specific_dump_file ne '') {
1744 $dump = "2>> $Specific_dump_file";
1745 $Using_dump_file = 1;
1749 # Win32 only: If the command processor used by system()
1750 # exec()s the application as an ordinary Win32 executable,
1751 # we're in trouble here, since the command line is likely
1752 # to be > 255 chars long. To work around this situation,
1753 # $HsC also understands `at-files', i.e., `@file' on the
1754 # command line will cause $HsC to add the contents of `file'
1755 # to the command line.
1757 # [ Note: support for `at-files' is not compiled in by default ]
1758 $cmd_line_opts_via_at_file=0;
1759 if ($cmd_line_opts_via_at_file) {
1761 local($to_do_opts) = "$Tmp_prefix.opts";
1762 open(OPTS, "> $Tmp_prefix.opts") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.opts\n");
1763 print OPTS "$dump @HsC_flags $CoreLint $USPLint $StgLint $Verbose";
1765 $to_do = "$HsC $hscpp_hsc \@$Tmp_prefix.opts $output +RTS @HsC_rts_flags";
1769 $to_do = "$HsC $hscpp_hsc $dump @HsC_flags $CoreLint $USPLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
1771 &run_something($to_do, 'Haskell compiler');
1773 # finish business w/ nofibbish time/bytes-alloc stats
1774 &process_ghc_timings() if $CollectGhcTimings;
1778 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
1779 of (module-name, pathname) pairs, one per line, separated by a space.
1782 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1786 # collect in %HiMap; write later; also used elsewhere in driver
1788 local($mod, $path, $d, $e);
1790 # reset the global variables:
1792 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1794 foreach $d ( @Import_dir ) {
1795 if ($HiIncludeString) {
1796 $HiIncludeString = "$HiIncludeString${SplitMarker}${d}%.${HiSuffix}";
1798 $HiIncludeString = "$d%.${HiSuffix}";
1803 foreach $d ( @SysImport_dir ) {
1804 if ($HiIncludeString) {
1805 $HiIncludeString = "$HiIncludeString${SplitMarker}${d}%.${HiSuffix_prelude}";
1807 $HiIncludeString = "${d}%.${HiSuffix_prelude}";
1816 Invoke the 'linker' - either the standard linker or the one used to build
1822 local($libdirs) = '';
1824 # append last minute flags linker and consistency flags
1829 # glue them together:
1830 push(@UserLibrary_dir, @SysLibrary_dir);
1832 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1834 # for a linker, use an explicitly given one, or the going C compiler ...
1835 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1837 if ( ($Specific_output_file eq '') &&
1838 ($TargetPlatform eq 'i386-unknown-cygwin32') ) {
1839 $Specific_output_file = 'main.exe';
1840 print STDERR "Output file not specified, defaulting to \"main.exe\"\n";
1843 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1844 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1846 &prepareWin32DllLink(1);
1848 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $TopClosureFile $libdirs @UserLibrary @SysLibrary";
1849 &run_something($to_do, 'Linker');
1851 # finally, check the consistency info in the binary
1852 local($executable) = $Files_to_tidy[0];
1853 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1856 # dynamically load consistency-chking code; then do it.
1857 require('ghc-consist.prl')
1858 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1860 &chk_consistency_info ( $executable );
1863 # if PVM parallel stuff, we do truly weird things.
1864 # Essentially: (1) move the executable over to where PVM expects
1865 # to find it. (2) create a script in place of the executable
1866 # which will cause the program to be run, via SysMan.
1867 if ( $PARing eq 'p' ) {
1868 local($pvm_executable) = $executable;
1869 local($pvm_executable_base);
1871 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1872 local($pwd) = `pwd`;
1874 $pwd =~ s/^\/tmp_mnt//;
1875 $pvm_executable = "$pwd/$pvm_executable";
1878 $pvm_executable =~ s|/|=|g; # make /s into =s
1879 $pvm_executable_base = $pvm_executable;
1881 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1882 . "/$pvm_executable";
1884 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1886 # OK, now create the magic script for "$executable"
1887 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1888 print EXEC <<EOSCRIPT1;
1889 eval 'exec perl -S \$0 \${1+"\$@"}'
1890 if \$running_under_some_shell;
1891 # =!=!=!=!=!=!=!=!=!=!=!
1892 # This script is automatically generated: DO NOT EDIT!!!
1893 # Generated by Glasgow Haskell, version ${ProjectVersion} ${ProjectPatchLevel}
1895 \$pvm_executable = '$pvm_executable';
1896 \$pvm_executable_base = '$pvm_executable_base';
1897 \$SysMan = '$SysMan';
1900 print EXEC <<\EOSCRIPT2;
1901 # first, some magical shortcuts to run "commands" on the binary
1903 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1905 system("$cmd $pvm_executable");
1909 # OK, really run it; process the args first
1910 $ENV{'PE'} = $pvm_executable_base;
1912 $nprocessors = 2; # the default
1916 # ToDo: handle --RTS
1917 args: while ($a = shift(@ARGV)) {
1918 if ( $a eq '+RTS' ) {
1920 } elsif ( $a eq '-RTS' ) {
1923 if ( $a eq '-d' && $in_RTS_args ) {
1925 } elsif ( $a =~ /^-N(\d+)/ && $in_RTS_args ) {
1928 push(@nonPVM_args, $a);
1932 local($return_val) = 0;
1933 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
1935 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
1938 close(EXEC) || die "Failed closing $executable\n";
1939 chmod 0755, $executable;
1943 sub createWin32DLL()
1947 # append last minute flags linker and consistency flags
1952 # glue them together:
1953 push(@UserLibrary_dir, @SysLibrary_dir);
1955 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1957 &prepareWin32DllLink(0);
1959 local ($bld_dll) = "dllwrap";
1961 local ($output) = ($Specific_output_file ne '') ? "$Specific_output_file" : 'HSdll.dll';
1962 local ($output_dir);
1963 local ($output_file);
1964 local ($output_lib, $output_def);
1966 ($output_dir = $output) =~ s|(.*/)[^/]+$|$1|;
1967 $output_dir = "" if ($output_dir eq $output);
1968 ($output_file = $output) =~ s|.*/([^/]+)$|$1|;
1970 ($output_lib = $output_file) =~ s|(.+)\.[^\.]*$|${output_dir}lib$1_imp.a|;
1971 ($output_def = $output_file) =~ s|(.+)\.[^\.]*$|${output_dir}$1.def|;
1973 push (@Dll_flags, "-mno-cygwin --target=i386-mingw32") if ($TargetPlatform =~ /^.*mingw32$/);
1974 push (@Dll_flags, "--output-lib $output_lib");
1975 # If the "--def " option hasn't been supplied, assume everything
1976 # is going to be exported via the DLL.."
1977 if (!grep(/--def/, @Dll_flags)) {
1978 push (@Dll_flags, "--export-all --output-def $output_def");
1981 local($to_do) = "$bld_dll @Dll_flags -o $output @Link_file $libdirs @UserLibrary @SysLibrary";
1982 # Make sure the user sees this piece of magic.
1983 print STDERR "$to_do\n" if (!$Verbose);
1984 &run_something($to_do, 'DLL creator');
1987 sub prepareWin32DllLink ()
1989 local($linking_main) = @_;
1992 # Win32 DLLs - link with import libraries, not the real archives.
1994 if ( $TargetPlatform =~ /-mingw32$/ ) {
1997 # If the libraries have the form libHSfoo.a, we
1998 # transform that into libHSfoo_imp.a - the import
1999 # library of the DLL.
2001 foreach $a ( @SysLibrary ) {
2002 $a = "${a}_imp" if ($a =~ /^-lHS/);
2004 foreach $a ( @UserLibrary ) {
2005 $a = "${a}_imp" if ($a =~ /^-lHS/);
2007 push(@Link_file, ( $INSTALLING ) ? "$InstLibDirGhc/Main.o"
2008 : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/Main.o") if $linking_main;
2009 push(@Link_file, ( $INSTALLING ) ? "$InstLibDirGhc/PrelMain.o"
2010 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/PrelMain.o") if $linking_main;
2012 push(@Ld_flags, "-mno-cygwin");
2018 %************************************************************************
2020 \section[Driver-misc-utils]{Miscellaneous utilities}
2022 %************************************************************************
2024 %************************************************************************
2026 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
2028 %************************************************************************
2032 local($ofile,$def_suffix) = @_;
2034 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
2038 local($orig_file, $def_suffix) = @_;
2039 if ($Specific_output_dir eq '') { # do nothing
2040 &osuf_ify($orig_file, $def_suffix);
2042 local ($orig_file_only);
2043 ($orig_file_only = $orig_file) =~ s|.*/||;
2044 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
2051 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
2053 local($includes) = '-I' . join(' -I', @Include_dir);
2056 local($c_flags) = "@CcBoth_flags";
2057 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2059 $c_flags .= " -mno-cygwin" if ( $TargetPlatform =~ /-mingw32$/ );
2061 # "input" files to use that are not in some weird directory;
2062 # to help C compilers grok .hc files [ToDo: de-hackify]
2063 local($cc_help) = "ghc$$.c";
2064 local($cc_help_s) = "ghc$$.s";
2067 $s_output = (($is_hc_file && $DoAsmMangling) || $TargetPlatform =~ /^(powerpc|rs6000|hppa)/) ? $cc_as_o : $cc_as;
2068 $c_flags .= " @CcRegd_flags";
2069 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2071 # C compiler won't like the .hc extension. So we create
2072 # a tmp .c file which #include's the needful.
2073 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2074 if ( $is_hc_file ) {
2078 # user may have asked for #includes to be injected...
2079 print TMP @CcInjects if $#CcInjects >= 0;
2081 # Straight .c files may want to know that they're being used
2082 # with a particular version of GHC, so we define __GLASGOW_HASKELL__ for their benefit.
2083 print TMP "#define __GLASGOW_HASKELL__ ${ProjectVersionInt}\n";
2085 # heave in the consistency info
2086 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2088 print TMP "#include \"$hsc_out\"\n";
2089 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2091 # Don't redirect stderr into intermediate file if slamming output onto stdout (e.g., with -E)
2092 local($fuse_stderr) = "2>&1" if ! $Only_preprocess_hc;
2093 local($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 )";
2095 if ( $Only_preprocess_hc ) { # HACK ALERT!
2096 $to_do =~ s/ -S\b//g;
2098 push(@Files_to_tidy, $cc_help, $cc_help_s, $s_output );
2099 $PostprocessCcOutput = 1 if ! $Only_preprocess_hc; # hack, dear hack...
2100 &run_something($to_do, 'C compiler');
2101 $PostprocessCcOutput = 0;
2102 if ( $Only_preprocess_hc ) {
2103 system("$Cat $Tmp_prefix.ccout");
2105 unlink($cc_help, $cc_help_s);
2111 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2113 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2115 if ($is_hc_file && $DoAsmMangling) {
2116 # dynamically load assembler-fiddling code, which we are about to use:
2117 require('ghc-asm.prl')
2118 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2119 # post-process the assembler [.hc files only]
2120 &mangle_asm($cc_as_o, $cc_as);
2122 } elsif ($TargetPlatform =~ /^hppa/) {
2123 # minor mangling of non-threaded files for hp-pa only
2124 require('ghc-asm.prl')
2125 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2126 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2128 } elsif ($TargetPlatform =~ /^powerpc|^rs6000/) {
2129 # minor mangling of non-threaded files for powerpcs and rs6000s
2130 require('ghc-asm.prl')
2131 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-powerpc.prl!\n");
2132 &mini_mangle_asm_powerpc($cc_as_o, $cc_as);
2135 # save a copy of the .s file, even if we are carrying on...
2136 #if ($do_as && $Keep_s_file_too) {
2137 # &saveIntermediate($ifile_root , "s" , $cc_as);
2144 local($as_out, $ifile_root) = @_;
2146 local($asmblr) = ( $As ) ? $As : $CcRegd;
2148 # need to add the -I flags in case the file is going through cpp (.S files)
2149 local($includes) = '-I' . join(' -I', @Include_dir);
2151 if ( ! $SplitObjFiles ) {
2152 local($to_do) = "$asmblr -o $as_out -c @As_flags $includes $cc_as";
2153 push(@Files_to_tidy, $as_out );
2154 &run_something($to_do, 'Unix assembler');
2156 } else { # more complicated split-ification...
2158 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2160 # If -odir is used, great, just pin it in front of the
2161 # generated split file names. If it hasn't been set, we
2162 # snatch it from the ifile_root.
2166 if ( $Specific_output_dir eq '' ) {
2167 $Specific_output_dir = ${ifile_root};
2170 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2171 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2172 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2173 push(@Files_to_tidy, $split_out );
2175 &run_something($to_do, 'Unix assembler');
2181 %************************************************************************
2183 \subsection[Driver-run-something]{@run_something@: Run a phase}
2185 %************************************************************************
2189 local($str_to_do, $tidy_name) = @_;
2191 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2192 print STDERR "$str_to_do\n" if $Verbose;
2194 if ($Using_dump_file) {
2195 open(DUMP, ">> $Specific_dump_file")
2196 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2197 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2199 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2202 local($return_val) = 0;
2204 if ( length($str_to_do) > 4000) {
2205 # 4000 - on the random side, just like the *real* ARG_MAX
2208 # With some shells, command lines of this length may
2209 # very well cause trouble. To safeguard against this, we squirrel the
2210 # command into a file and exec that.
2211 local ($sh) = $ENV{'REAL_SHELL'};
2212 print STDERR "Backup plan A: saving cmd line in ${Tmp_prefix}.sh and executing that with $sh\n" if $Verbose;
2213 open (TEMP, "> ${Tmp_prefix}.sh") ||
2214 &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.sh'\n");
2215 print TEMP "$Time $str_to_do\n";
2217 &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.sh'\n");
2218 system("$sh $Tmp_prefix.sh");
2221 unlink "${Tmp_prefix}.sh";
2223 system("$Time $str_to_do");
2227 if ( $PostprocessCcOutput ) { # hack, continued
2228 open(CCOUT, "< $Tmp_prefix.ccout")
2229 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2231 next if /call-clobbered/;
2232 next if /control reaches end/;
2233 next if /from .*Stg\.h:/;
2234 next if /from ghc\d+.c:\d+:/;
2235 next if /: At top level:$/;
2236 next if /: In function \`.*\':$/;
2237 next if /\`ghc_cc_ID\' defined but not used/;
2240 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2243 if ($return_val != 0) {
2244 if ($Using_dump_file) {
2245 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2247 &tidy_up_and_die($return_val, '');
2249 $Using_dump_file = 0;
2253 %************************************************************************
2255 \subsection[Driver-ghc-timing]{Emit nofibbish GHC timings}
2257 %************************************************************************
2259 NB: nearly the same as in @runstdtest@ script.
2262 sub process_ghc_timings {
2263 local($StatsFile) = "$Tmp_prefix.stat";
2264 local($SysSpecificTiming) = 'ghc';
2266 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2267 local($max_live) = 0;
2268 local($tot_live) = 0; # for calculating residency stuff
2269 local($tot_samples) = 0;
2272 if (! /Gen:\s+0/ && ! /Minor/ && /^\s*\d+\s+\d+\s+(\d+)\s+\d+\.\d+/ ) {
2273 $max_live = $1 if $max_live < $1;
2277 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2279 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2280 $MaxResidency = $1; $ResidencySamples = $2;
2283 $GCs = $1 if /^\s*([0-9,]+) (collections? in generation 0|garbage collections? performed)/;
2285 if ( /^\s+([0-9]+)\s+Mb total memory/ ) {
2289 # The presence of -? in the following pattern is only there to
2290 # accommodate 0.29 && <= 2.05 RTS'
2291 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*-?(\d+\.\d\d)s elapsed\)/ ) {
2292 $InitTime = $1; $InitElapsed = $2;
2293 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2294 $MutTime = $1; $MutElapsed = $2;
2295 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2296 $GcTime = $1; $GcElapsed = $2;
2299 close(STATS) || die "Failed when closing $StatsFile\n";
2300 if ( $tot_samples > 0 ) {
2301 $ResidencySamples = $tot_samples;
2302 $MaxResidency = $max_live;
2303 $AvgResidency = int ($tot_live / $tot_samples) ;
2306 # warn about what we didn't find
2307 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2308 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2309 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2310 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2311 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2312 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2313 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2314 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2316 # things we didn't necessarily expect to find
2317 $MaxResidency = 0 unless defined($MaxResidency);
2318 $AvgResidency = 0 unless defined($AvgResidency);
2319 $ResidencySamples = 0 unless defined($ResidencySamples);
2322 $BytesAlloc =~ s/,//g;
2323 $MaxResidency =~ s/,//g;
2325 $InitTime =~ s/,//g;
2326 $InitElapsed =~ s/,//g;
2328 $MutElapsed =~ s/,//g;
2330 $GcElapsed =~ s/,//g;
2332 # print out what we found
2333 print STDERR "<<$SysSpecificTiming: ",
2334 "$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)",
2335 " :$SysSpecificTiming>>\n";
2342 %************************************************************************
2344 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2346 %************************************************************************
2350 local($to_do) = "\n$Rm $Tmp_prefix*";
2351 if ( $Tmp_prefix !~ /^\s*$/ ) {
2352 print STDERR "$to_do\n" if $Verbose;
2357 sub tidy_up_and_die {
2358 local($return_val, $msg) = @_;
2360 # delete any files to tidy
2361 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2362 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2366 exit (($return_val == 0) ? 0 : 1);
2370 %************************************************************************
2372 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2374 %************************************************************************
2376 Some command-line arguments take an argument, e.g.,
2377 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2378 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2379 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2381 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2382 gobble the second argument (and probably set the heapsize to something
2386 local(*Args, $option, $rest_of_arg) = @_;
2388 if ($rest_of_arg ne '') {
2389 return($rest_of_arg);
2390 } elsif ($#Args >= 0) {
2391 local($temp) = $Args[0]; shift(@Args);
2394 print STDERR "$Pgm: no argument following $option option\n";
2405 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2407 foreach $f ( @HsC_antiflags ) {
2408 return(0) if $flag eq $f;
2410 # foreach $f ( @HsC_flags ) {
2411 # return(0) if $flag eq $f;
2416 sub squashHscFlag { # pretty terrible
2420 foreach $f ( @HsC_flags ) {
2421 if ($flag eq $f) { $f = ''; }
2429 foreach $f ( @flags ) {
2430 push( @HsC_flags, $f ) if &isntAntiFlag($f);
2435 To add another system library, you'll need to augment the
2436 Supported_syslibs variable with name and info on your addition
2437 to the syslib family. The info bit consist of the following:
2439 - interface file directory
2440 see the misc or posix entry for how to distinguish
2441 between using installed and build tree directories.
2443 - directory location of archives
2445 - location of (way-independent) C support libs.
2446 not all libraries need this - if you don't, just
2447 give the empty string.
2448 - list of syslibs you depend on.
2450 - additional ghc command line flags that should be used.
2451 - additional C compiler command line flags that should be used.
2457 # Hash to keep track of
2458 %Syslibs_added = ();
2461 local($syslib) = @_;
2463 # Lifting this out of this sub brings it out of scope - why??
2464 %Supported_syslibs =
2466 [ # where to slurp interface files from
2468 ? "$InstLibDirGhc/imports/exts"
2469 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/exts"
2471 , # where to find the archive to use when linking
2474 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/exts"
2477 , '' # Syslib dependencies
2478 , '' # extra ghc opts
2479 , '' # extra cc opts
2480 , '' # extra ld opts
2484 [ # where to slurp interface files from
2486 ? "$InstLibDirGhc/imports/misc"
2487 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc"
2489 , # where to find the archive to use when linking
2492 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc"
2494 , # where to find the cbits archive to use when linking
2497 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc/cbits"
2499 , 'exts' # Syslib dependencies
2500 , '' # extra ghc opts
2501 , '' # extra cc opts
2502 , ( $TargetPlatform =~ /-solaris2$/ ? '-lnsl -lsocket' : '')
2505 [ # where to slurp interface files from
2507 ? "$InstLibDirGhc/imports/hbc"
2508 : "$TopPwd/CONTRIB/libraries/hbc/src"
2510 , # where to find the archive to use when linking
2513 : "$TopPwd/CONTRIB/libraries/src/hbc"
2515 , # where to find the cbits archive to use when linking
2518 : "$TopPwd/CONTRIB/libraries/hbc/cbits"
2520 , 'exts' # Syslib dependencies
2521 , '' # extra ghc opts
2522 , '' # extra cc opts
2526 [ # where to slurp interface files from
2528 ? "$InstLibDirGhc/imports/posix"
2529 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix"
2531 , # where to find the archive to use when linking
2534 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix"
2536 , # where to find the cbits archive to use when linking
2539 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix/cbits"
2541 , 'misc' # Syslib dependencies
2542 , '' # extra ghc opts
2543 , '' # extra cc opts
2544 , '' # extra ld opts
2547 [ # where to slurp interface files from
2549 ? "$InstLibDirGhc/imports/concurrent"
2550 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent"
2552 , # where to find the archive to use when linking
2555 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent"
2557 , '' # where to find the cbits archive to use when linking
2558 , '' # Syslib dependencies
2559 , '' # extra ghc opts
2560 , '' # extra cc opts
2561 , '' # extra ld opts
2564 [ # where to slurp interface files from
2566 ? "$InstLibDirGhc/imports/win32"
2567 : "$TopPwd/hslibs/win32/src"
2569 , # where to find the archive to use when linking
2572 : "$TopPwd/hslibs/win32/src"
2575 , 'exts' # Syslib dependencies
2576 , '' # extra ghc opts
2577 , '' # extra cc opts
2578 , '-luser32 -lgdi32' # extra ld opts
2581 [ # where to slurp interface files from
2583 ? "$InstLibDirGhc/imports/com"
2584 : "$TopPwd/hdirect/lib"
2586 , # where to find the archive to use when linking
2589 : "$TopPwd/hdirect/lib"
2592 , 'exts' # Syslib dependencies
2593 , '' # extra ghc opts
2594 , '' # extra cc opts
2595 , '-luser32 -lole32 -loleaut32 -ladvapi32'
2600 # check if it's supported..
2602 if ( !exists $Supported_syslibs{$syslib} ) {
2603 print STDERR "$Pgm: no such system library (-syslib): $syslib\n";
2608 # This check is here to avoid syslib loops from
2609 # spoiling the party. A side-effect of it is that
2610 # it disallows multiple mentions of a syslib on a command-line,
2611 # explicit *and* implicit ones (i.e., "-syslib exts -syslib misc"
2612 # is not equal to "-syslib exts -syslib misc -syslib exts",
2613 # which it needs to be)
2615 # Since our current collection of syslibs don't have any
2616 # loops, this test is disabled.
2618 # ToDo: loop avoidance scheme when the need arises
2620 #return if ( exists $Syslibs_added{$syslib} );
2622 $Syslibs_added{$syslib} = 1;
2624 local ($hi_dir, $lib_dir, $lib_cbits_dir,
2625 $syslib_deps, $syslib_ghc_opts,
2626 $syslib_cc_opts, $syslib_ld_opts) = @{ $Supported_syslibs{$syslib} };
2629 unshift(@SysImport_dir, $hi_dir);
2630 push(@SysLibrary_dir, $lib_dir);
2631 push(@SysLibrary_dir, $lib_cbits_dir) if ( $lib_cbits_dir ne '');
2633 push(@SysLibrary, "-lHS$syslib");
2634 push(@SysLibrary, "-lHS${syslib}_cbits") if ( $lib_cbits_dir ne '');
2635 push(@SysLibrary, $syslib_ld_opts) if ($syslib_ld_opts ne '');
2637 # Add on any extra dependencies.
2638 foreach $lib (split(' ',$syslib_deps)) {
2644 Source files may have {-# OPTIONS ... #-} pragmas at the top, containing
2645 command line options we want to append to collection of commands specified
2646 directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell
2647 file for any such pragmas:
2650 sub check_for_source_options {
2651 local($file,$ifile) = @_;
2652 local($comment_start,$comment_end);
2654 if ($ifile =~ /\.hc$/ ||
2657 $ifile =~ /_s$/ ) { # `Real' C intermediate
2658 $comment_start = "/\\*";
2659 $comment_end = "\\*/";
2660 } else { # Assume it is a file containing Haskell source
2661 $comment_start = "{-#";
2662 $comment_end = "#-}";
2665 open(FILE,$file) || return(1); # No big loss
2668 if ( /^${comment_start} OPTIONS (.*)${comment_end}$/ ) {
2669 # add the options found at the back of the command line.
2670 local(@entries) = split(/\s+/,$1);
2671 print STDERR "Found OPTIONS " . join(' ',@entries) . " in $file\n" if $Verbose;
2672 push(@File_options, @entries);
2674 elsif ( /^$/ ) { # ignore empty lines
2677 elsif ( /^#line.+$/ ) { # ignore comment lines (unused..ToDo: rm )
2680 elsif ( /^{-# LINE.+$/ ) { # ignore line pragmas
2683 else { # stop looking, something non-empty / not
2684 # ${comment_start} OPTIONS .. ${comment_end} encountered.
2685 close(FILE);return(0);
2694 We split the initial argv up into three arrays:
2700 the reason for doing so is to be able to deal
2701 with {-# OPTIONS #-} pragma in source files properly.
2707 arg: while($_ = $args[0]) {
2709 # sigh, we have to deal with these -option arg specially here.
2710 /^-(tmpdir|odir|ohi|o|isuf|osuf|hisuf|odump|syslib)$/ &&
2711 do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; };
2712 /^--?./ && do { push(@Cmd_opts, $_); next arg; };
2714 if (/\.([^_]+_)?[oa]$/) {
2715 push(@Link_file, $_);
2717 push(@Input_file, $_);
2720 # input files must exist:
2722 print STDERR "$Pgm: input file doesn't exist: $_\n";
2730 When saving an intermediate file (.hc or .s) away, we
2731 have to prefix any OPTIONS found in the original source file.
2734 sub saveIntermediate {
2735 local ($final,$suffix,$tmp)= @_ ;
2738 # $final -- root of where to park ${final}.${suffix}
2739 # $tmp -- temporary file where hsc put the intermediate file.
2741 # Delete the old file
2742 $to_do = "$Rm ${final}.${suffix}"; &run_something($to_do, "Removing old .${suffix} file");
2744 if ( $#File_options >= 0 ) { # OPTIONS found in Haskell source unit
2745 # Add OPTION comment to the top of the generated .${suffix} file
2746 open(TEMP, "> ${final}.${suffix}") || &tidy_up_and_die(1,"Can't open ${final}.${suffix}\n");
2747 print TEMP "/* OPTIONS " . join(' ',@File_options) . " */\n";
2749 print STDERR "Prepending OPTIONS: " . join(' ',@File_options) . " to ${final}.${suffix}\n" if $Verbose;
2751 $to_do = "$Cat $tmp >> ${final}.${suffix}";
2752 &run_something($to_do, "Saving copy of .${suffix} file");
2759 Command-line processor
2765 # can't use getopt(s); what we want is too complicated
2767 arg: while($_ = $Args[0]) {
2770 #---------- help -------------------------------------------------------
2771 if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; }
2773 #-----------version ----------------------------------------------------
2774 /^--version$/ && do { print STDERR "${ProjectName}, version ${ProjectVersion}, patchlevel ${ProjectPatchLevel}\n"; exit $Status; };
2776 #---------- verbosity and such -----------------------------------------
2777 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
2779 #---------- what phases are to be run ----------------------------------
2780 /^-(no-)?recomp/ && do { $Do_recomp_chkr = ($1 eq '') ? 1 : 0; next arg; };
2782 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
2783 # change the global default:
2784 # we won't run cat; we'll run the real thing
2786 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
2788 # stop after generating C
2790 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
2791 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
2793 # leave out actual C generation (debugging) [also turns off interface gen]
2796 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
2797 # _do_ generate an interface; usually used as: -noC -hi
2798 /^-hi-with-(.*)$/ && do { $HiOnStdout = 1; $HiWith .= " $1" ; $ProduceHi = '-hifile='; next arg; };
2799 # limit ourselves to outputting a particular section.
2801 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
2802 # don't generate an interface (even if generating C)
2804 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
2805 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
2806 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
2807 /^-keep-hi-diffs$/ && do { $Keep_HiDiffs = 1; next arg; };
2809 # show/disable diffs if the interface file changes
2811 /^-E$/ && do { push(@CcBoth_flags, '-E');
2812 $Only_preprocess_C = 1;
2813 $Do_as = 0; $Do_lnkr = 0; next arg; };
2814 # stop after preprocessing C
2815 /^-M$/ && do { $Only_generate_deps = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2816 # only generate dependency information.
2817 /^--mk-dll$/ && do { $Only_generate_dll = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2818 # Build a Win32 DLL (where supported).
2819 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
2820 # stop after generating assembler
2822 /^-c$/ && do { $Do_lnkr = 0; next arg; };
2823 # stop after generating .o files
2825 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
2826 # don't do consistency-checking after a link
2827 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
2829 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', '');
2830 $Tmp_prefix = "$Tmp_prefix/ghc$$";
2831 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
2833 # use an alternate directory for temp files
2835 #---------- redirect output --------------------------------------------
2837 # -o <file>; applies to the last phase, whatever it is
2838 # "-o -" sends it to stdout
2839 # if <file> has a directory component, that dir must already exist
2841 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', '');
2843 # Hack, of the worst sort: don't do validation of
2844 # odir argument if you're using -M (dependency generation).
2846 if ( ! $Only_generate_deps && ! -d $Specific_output_dir) {
2847 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
2852 /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', '');
2853 if ($Specific_output_file ne '-'
2854 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
2855 local($dir_part) = $1;
2856 if (! -d $dir_part) {
2857 print STDERR "$Pgm: no such directory: $dir_part\n";
2863 # NB: -isuf not documented yet (because it doesn't work yet)
2864 /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', '');
2865 if ($Isuffix =~ /\./ ) {
2866 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
2871 /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', '');
2872 if ($Osuffix =~ /\./ ) {
2873 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
2878 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
2879 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', '');
2880 if ($Specific_hi_file ne '-'
2881 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
2882 local($dir_part) = $1;
2883 if (! -d $dir_part) {
2884 print STDERR "$Pgm: no such directory: $dir_part\n";
2888 $ProduceHi='-hifile=';
2891 # The suffix to use when looking for interface files
2892 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', '');
2893 if ($HiSuffix =~ /\./ ) {
2894 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
2898 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', '');
2899 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
2900 local($dir_part) = $1;
2901 if (! -d $dir_part) {
2902 print STDERR "$Pgm: no such directory: $dir_part\n";
2908 #-------------- scc & Profiling Stuff ----------------------------------
2910 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
2912 /^-auto-dicts$/ && do {
2913 $PROFdicts = '-fauto-sccs-on-dicts';
2915 /^-auto-all$/ && do {
2916 $PROFauto = '-fauto-sccs-on-all-toplevs';
2919 $PROFauto = '-fauto-sccs-on-exported-toplevs';
2922 /^-caf-all/ && do { # generate individual CAF SCC annotations
2923 $PROFcaf = '-fauto-sccs-on-individual-cafs';
2926 /^-ignore-scc$/ && do {
2927 # forces ignore of scc annotations even if profiling
2928 $PROFignore_scc = '-W';
2931 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
2934 /^-unprof-scc-auto/ && do {
2935 # generate auto SCCs on top level bindings when not profiling.
2936 # Used to measure optimisation effects of presence of sccs.
2937 $UNPROFscc_auto = ( /-all/ )
2938 ? '-fauto-sccs-on-all-toplevs'
2939 : '-fauto-sccs-on-exported-toplevs';
2942 #--------- ticky/parallel ----------------------------------------------
2943 # we sort out the details a bit later on
2945 /^-gransim$/ && do { $GRANing = 'g'; &add_syslib('concurrent'); next arg; }; # GranSim
2946 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
2947 /^-parallel$/ && do { $PARing = 'p'; &add_syslib('concurrent'); next arg; }; # parallel Haskell
2949 #-------------- "user ways" --------------------------------------------
2951 (/^-user-setup-([a-oA-Z])$/ ) &&
2953 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
2955 local($stuff) = $UserSetupOpts{$BuildTag};
2956 local(@opts) = split(/\s+/, $stuff);
2958 # feed relevant ops into the arg-processing loop (if any)
2959 unshift(@Args, @opts) if $#opts >= 0;
2963 #---------- set search paths for libraries and things ------------------
2965 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
2966 # prepends the items to the list); -I is for including C .h files.
2968 /^-i$/ && do { @Import_dir = (); # import path cleared!
2969 @SysImport_dir = ();
2970 print STDERR "WARNING: import paths cleared by `-i'\n";
2973 /^-i(.*)/ && do { local(@new_items);
2977 if ( $arg =~ /;/ ) {
2979 @new_items = split( /;/, &grab_arg_arg(*Args,'-i', $arg));
2981 @new_items = split( /:/, &grab_arg_arg(*Args,'-i', $arg));
2983 unshift(@Import_dir, @new_items);
2986 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; };
2987 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; };
2988 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; };
2990 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1);
2991 &add_syslib($syslib);
2994 #=======================================================================
2995 # various flags that we can harmlessly send to one program or another
2996 # (we will later "reclaim" some of the compiler ones now sent to gcc)
2997 #=======================================================================
2999 #---------- this driver itself (ghc) -----------------------------------
3000 # these change what executable is run for each phase:
3001 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
3002 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
3003 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
3004 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
3005 /^-pgma(.*)$/ && do { $As = $1; next arg; };
3006 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
3007 /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; };
3009 #---------- the get-anything-through opts (all pgms) -------------------
3010 # these allow arbitrary option-strings to go to any phase:
3011 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
3012 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
3013 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
3014 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
3015 /^-optcpp(.*)$/ && do { push(@Cpp_define, $1); $Only_preprocess_hc = ($1 eq "-E"); next arg; };
3016 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
3017 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
3018 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
3019 /^-optdll(.*)$/ && do { push(@Dll_flags, $1); next arg; };
3020 /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; };
3022 #---------- Haskell C pre-processor (hscpp) ----------------------------
3023 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; };
3024 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; };
3026 #---------- post-Haskell "assembler"------------------------------------
3027 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
3028 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
3030 #---------- Haskell compiler (hsc) -------------------------------------
3032 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
3033 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
3035 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
3036 /^-fignore-asserts$/ && do { push(@HsC_flags, $_); next arg; };
3038 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
3041 # have the compiler proper generate concurrent code,
3042 # really only used when you want to configure your own
3043 # special user compilation way.
3045 # (ditto for -fgransim, fscc-profiling, -fparallel and -fticky-ticky)
3047 /^-fscc-profiling$/ && do { push(@HsC_flags,$_); next arg; };
3048 /^-fticky-ticky$/ && do { push(@HsC_flags,$_); next arg; };
3049 /^-fgransim$/ && do { push(@HsC_flags,$_); next arg; };
3050 /^-fparallel$/ && do { push(@HsC_flags,$_); next arg; };
3052 /^-split-objs$/ && do {
3053 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|rs6000|sparc)-/ ) {
3055 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
3060 push(@HsC_flags, "-fglobalise-toplev-names");
3061 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
3063 require('ghc-split.prl')
3064 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
3068 /^-unreg$/ && do { $UNREGing = 'u'; next arg; };
3069 /^-funregisterised$/ && do { push(@HsC_flags, $_); next arg; };
3070 /^-fno-asm-mangling$/ && do { $DoAsmMangling = 0; next arg; };
3072 /^-fallow-overlapping-instances$/ && do { push(@HsC_flags, $_); next arg; };
3073 /^-fallow-undecidable-instances$/ && do { push(@HsC_flags, $_); next arg; };
3074 /^-fhistory-size.*$/ && do { push(@HsC_flags, $_); next arg; };
3075 /^-fdicts-strict$/ && do { push(@HsC_flags, $_); next arg; };
3077 && do { push(@HsC_flags, $_);
3079 # -fglasgow-exts implies -syslib exts
3080 &add_syslib('exts');
3085 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
3086 /^-fno-speciali[sz]e$/
3087 && do { $Oopt_DoSpecialise = ''; next arg; };
3090 && do { $Oopt_UsageSPInf = '-fusagesp';
3091 push (@HsC_flags, '-fusagesp-on'); next arg; };
3093 /^-fcompiling-prelude$/ && do { $CompilingPrelude=1; push(@HsC_flags, $_); next arg; };
3095 # Now the foldr/build options, which are *on* by default (for -O).
3098 && do { $Oopt_FoldrBuild = 1;
3102 /^-fno-foldr-build$/
3103 && do { $Oopt_FoldrBuild = 0;
3106 # --------------- Renamer -------------
3109 /^-fno-prune-tydecls$/ && do { push(@HsC_flags, $_); next arg; };
3110 /^-fno-prune-instdecls$/ && do { push(@HsC_flags, $_); next arg; };
3114 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
3115 /^-fvia-[cC]$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
3120 && do { push(@HsC_flags, $_); next arg };
3122 /^-funfold-casms-in-hi-file$/
3123 && do { push(@HsC_flags, $_); next arg };
3125 /^(-fmax-simplifier-iterations)(.*)$/
3126 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2);
3129 /^-fno-pedantic-bottoms$/
3130 && do { $Oopt_PedanticBottoms = ''; next arg; };
3132 /^-fno-pre-inlining$/
3133 && do { push(@HsC_flags, $_); next arg };
3135 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
3136 && do { push(@HsC_flags, $_); next arg; };
3138 /^-funbox-strict-fields$/
3139 && do { push(@HsC_flags, $_); next arg; };
3141 # --------------- Warnings etc. ------
3143 /^-fwarn-(.*)$/ && do { push(@HsC_flags, $_); next arg; };
3145 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
3146 &squashHscFlag("-f$1");
3149 /^-W$/ && do { push(@HsC_flags, @MinusWOpts); next arg; };
3150 /^-Wall$/ && do { push(@HsC_flags, @MinusWallOpts); next arg; };
3151 /^(-Wnot|w)$/ && do { foreach (@Hsc_flags) {
3152 /^-fwarn-(.*)$/ && do { $_=''; };
3154 push(@HsC_antiflags, @StandardWarnings);
3157 # --------------- fun stuff ----------------
3159 /^-freport-compile$/ && do { push(@HsC_flags, $_); next arg; };
3161 # --------------- platform specific flags (for gcc mostly) ----------------
3163 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes,
3164 # for 2.6.x..?, does not apply for 2.7.2
3166 unshift(@CcBoth_flags, ( $_ ));
3169 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
3170 && do { # for GCC for SPARCs
3171 unshift(@CcBoth_flags, ( $_ ));
3174 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
3175 $StolenX86Regs = $1;
3178 #*************** ... and lots of debugging ones (form: -d* )
3180 # -d(no-)core-lint is done this way so it is turn-off-able.
3181 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
3182 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
3183 # Ditto for USP lint
3184 /^-dusagesp-lint/ && do { $USPLint = '-dusagesp-lint'; next arg; };
3185 /^-dno-usagesp-lint/ && do { $USPLint = ''; next arg; };
3186 # Ditto for STG lint
3187 /^-dstg-lint/ && do { $StgLint = '-dstg-lint'; next arg; };
3188 /^-dno-stg-lint/ && do { $StgLint = ''; next arg; };
3190 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
3191 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
3192 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
3193 /^-dshow-rn-stats/ && do { push(@HsC_flags, $_); next arg; };
3194 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
3195 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
3196 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
3197 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
3199 #*************** ... and now all these -R* ones for its runtime system...
3201 /^-Rscale-sizes?(.*)/ && do {
3202 $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1);
3205 /^(-H|-Rmax-heapsize)(.*)/ && do {
3206 local($heap_size) = &grab_arg_arg(*Args,$1, $2);
3207 if ($heap_size =~ /(\d+)[Kk]$/) {
3208 $heap_size = $1 * 1000;
3209 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
3210 $heap_size = $1 * 1000 * 1000;
3211 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
3212 $heap_size = $1 * 1000 * 1000 * 1000;
3214 if ($heap_size <= 0) {
3215 print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n";
3216 $Specific_heap_size = 0;
3218 # if several heap sizes given, take the largest...
3219 } elsif ($heap_size >= $Specific_heap_size) {
3220 $Specific_heap_size = $heap_size;
3222 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n";
3226 /^(-K|Rmax-(stk|stack)size)(.*)/ && do {
3228 local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3);
3229 if ($stk_size =~ /(\d+)[Kk]$/) {
3230 $stk_size = $1 * 1000;
3231 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
3232 $stk_size = $1 * 1000 * 1000;
3233 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
3234 $stk_size = $1 * 1000 * 1000 * 1000;
3236 if ($stk_size <= 0) {
3237 print STDERR "$Pgm: resetting stack-size to zero!!! $stk_size\n";
3238 $Specific_stk_size = 0;
3240 # if several stack sizes given, take the largest...
3241 } elsif ($stk_size >= $Specific_stk_size) {
3242 $Specific_stk_size = $stk_size;
3244 print STDERR "$Pgm: ignoring stack-size-setting option ($flag $stk_size)...not the largest seen\n";
3248 /^-Rgc-stats$/ && do { $CollectingGCstats++;
3249 # the two RTSs do this diff ways; we will try to compensate
3252 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
3254 #---------- C high-level assembler (gcc) -------------------------------
3255 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
3257 # -dgcc-lint is a useful way of making GCC very fussy.
3258 # From alan@spri.levels.unisa.edu.au (Alan Modra).
3259 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
3260 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
3261 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
3263 # inject "#include <wurble>" into the compiler's C output!
3265 /^-#include(.*)/ && do {
3266 local($to_include) = &grab_arg_arg(*Args,'-#include', $1);
3267 push(@CcInjects, "#include $to_include\n");
3270 #---------- Linker (gcc, really) ---------------------------------------
3272 /^-static$/ && do { $Static=1; push(@Ld_flags, $_); next arg; };
3273 /^-no-hs-main$/ && do { $NoHaskellMain=1; next arg; };
3275 #---------- mixed cc and linker magic ----------------------------------
3276 # this optimisation stuff is finally sorted out later on...
3278 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
3280 /^-O[1-2]?$/ && do {
3281 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
3282 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
3284 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
3287 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
3289 /^-Ofile(.*)/ && do {
3291 local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1);
3292 @HsC_minusO3_flags = ();
3294 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
3297 s/\#.*//; # death to comments
3298 s/[ \t]+//g; # death to whitespace
3299 next if /^$/; # ditto, blank lines
3300 s/([()*{}])/\\$1/g; # protect shell metacharacters
3302 push(@CcBoth_flags, $1);
3304 push(@HsC_minusO3_flags, $_);
3310 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
3311 # in the consistency info
3315 #---------- linking .a file --------------------------------------------
3317 /^-Main(.*)/ && do {
3318 # specifies main or mainPrimIO to be linked
3322 #---------- catch unrecognized flags -----------------------------------
3325 print STDERR "$Pgm: unrecognised option: $_\n";
3331 } # end of processArgs