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-missing-fields',
283 '-fwarn-duplicate-exports');
284 @MinusWOpts = (@StandardWarnings,
285 '-fwarn-unused-binds',
286 '-fwarn-unused-matches',
287 '-fwarn-incomplete-patterns',
288 '-fwarn-unused-imports');
289 @MinusWallOpts = (@MinusWOpts,
290 '-fwarn-type-defaults',
291 '-fwarn-name-shadowing',
292 '-fwarn-missing-signatures');
295 What options \tr{-user-setup-a} turn into (user-defined ``packages''
297 of options). Note that a particular user-setup implies a particular
298 Prelude ({\em including} its interface file(s)).
300 $BuildTag = ''; # default is sequential build w/ Appel-style GC
302 %BuildDescr = (# system ways begin
303 '', 'Normal Sequential',
305 '_t', "Ticky-ticky Profiling",
306 '_u', "Unregisterised",
326 '_B', "$WAY_B_NAME" );
328 # these are options that are "fed back" through the option processing loop
332 '_a', "$WAY_a_REAL_OPTS",
333 '_b', "$WAY_b_REAL_OPTS",
334 '_c', "$WAY_c_REAL_OPTS",
335 '_d', "$WAY_d_REAL_OPTS",
336 '_e', "$WAY_e_REAL_OPTS",
337 '_f', "$WAY_f_REAL_OPTS",
338 '_g', "$WAY_g_REAL_OPTS",
339 '_h', "$WAY_h_REAL_OPTS",
340 '_i', "$WAY_i_REAL_OPTS",
341 '_j', "$WAY_j_REAL_OPTS",
342 '_k', "$WAY_k_REAL_OPTS",
343 '_l', "$WAY_l_REAL_OPTS",
344 '_m', "$WAY_m_REAL_OPTS",
345 '_n', "$WAY_n_REAL_OPTS",
346 '_o', "$WAY_o_REAL_OPTS",
347 '_A', "$WAY_A_REAL_OPTS",
348 '_B', "$WAY_B_REAL_OPTS",
351 '_p', "-fscc-profiling -DPROFILING -optc-DPROFILING",
352 '_t', "-fticky-ticky -DTICKY_TICKY -optc-DTICKY_TICKY",
353 '_u', "-optc-DNO_REGS -optc-DUSE_MINIINTERPRETER -fno-asm-mangling -funregisterised",
354 '_mp', "-fstack-check -fparallel -D__PARALLEL_HASKELL__ -optc-DPAR",
355 '_mg', "-fstack-check -fconcurrent -fgransim -D__GRANSIM__ -D__CONCURRENT_HASKELL__ -optc-DCONCURRENT -optc-DGRAN");
357 # where to look for interface files (system hi's, i.e., prelude and syslibs)
358 @SysImport_dir = ( $INSTALLING )
359 ? ( "$InstLibDirGhc/imports/std" )
360 : ( "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std" );
362 # We need to look in ghc/ and glaExts/ when searching for implicitly needed .hi files, but
363 # we should really *not* look there for explicitly imported modules.
365 $Haskell1Version = 5; # i.e., Haskell 1.4
368 # Cpp symbols defined when we're processing Haskell source.
372 , "-D__HASKELL1__=$Haskell1Version"
373 , "-D__GLASGOW_HASKELL__=$ProjectVersionInt"
375 , "-D__CONCURRENT_HASKELL__"
379 @SysLibrary_dir = ( ( $INSTALLING ) #-syslib things supplied by the system
381 : ( "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR"
382 , "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/gmp"
383 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std"
384 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std/cbits"
388 $TopClosureFile # defaults to 1.2 one; will be mangled later
390 # ( $INSTALLING) ? "$InstLibDirGhc/TopClosureXXXX.o"
391 # : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/main/TopClosureXXXX.o";
393 # make depend for Haskell
395 = ( $INSTALLING ) ? "$InstLibExecDirGhc/mkdependHS"
396 : "$TopPwd/$CURRENT_DIR/$GHC_UTILS_DIR/mkdependHS/mkdependHS";
398 @MkDependHS_flags = ();
400 # do_link flag should not be reset while rescanning the cmd-line.
402 $Specific_output_dir = ''; # set by -odir <dir>
403 $Specific_output_file = ''; # set by -o <file>; "-" for stdout
406 Function to initialise the per-compilation-unit globals that
407 are used to guide and control the invocation of the different phases.
410 sub initDriverGlobals {
412 # reset the following options:
413 # RTS flags to use while compiling
419 The optimisations/etc to be done by the compiler are {\em normally}
420 expressed with a \tr{-O} (or \tr{-O2}) flag, or by its absence.
423 $OptLevel = 0; # no -O == 0; -O == 1; -O2 == 2; -Ofile == 3
424 $MinusO2ForC = 0; # set to 1 if -O2 should be given to C compiler
425 $StolenX86Regs = 4; # **HACK*** of the very worst sort
430 # The SplitMarker is the string/character used to mark end of element
433 @Import_dir = ('.'); #-i things
434 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
436 @UserLibrary_dir= (); #-L things;...
437 @UserLibrary = (); #-l things asked for by the user
439 @SysLibrary = (); # will be built up as we go along
442 We are given a list of files with various presumably-known suffixes
443 (unknown-suffix files go straight to the linker). For each file, we
444 begin by assuming that we'll run every phase over it. However: (1)
445 global flags (\tr{-c}, \tr{-S}, etc.) tell us not to run any phase
446 past a certain point; and (2) the file's suffix tells us what phase to
447 start with. Linking is weird and kept track of separately.
449 Here are the initial defaults applied to all files:
451 $Cpp_flag_set = 0; # (hack)
452 $Only_preprocess_C = 0; # pretty hackish
453 $Only_preprocess_hc = 0; # ditto
454 $Only_generate_deps = 0; # ""
455 $Only_generate_dll = 0;
456 $PostprocessCcOutput = 0;
459 # static = 0 => produce code for DLLs (when compiling & linking.)
461 $Static = 0 if ($EnableWin32DLLs eq 'YES');
463 # native code-gen or via C?
464 $HaveNativeCodeGen = $GhcWithNativeCodeGen;
465 $HscOut = '-C='; # '-C=' ==> .hc output; '-S=' ==> .s output; '-N=' ==> neither
467 if ($HaveNativeCodeGen ne 'YES') && $TargetPlatform =~ /^(alpha)-/;
468 # TEMP: disable x86 & Sparc if $HaveNativeCodeGen && $TargetPlatform =~ /^(i386|alpha|sparc)-/;
469 $ProduceHi = '-hifile=';
475 $CollectingGCstats = 0;
476 $CollectGhcTimings = 0;
477 $DEBUGging = ''; # -DDEBUG and all that it entails (um... not really)
478 $PROFing = ''; # set to p or e if profiling
479 $PROFgroup = ''; # set to group if an explicit -Ggroup specified
480 $PROFauto = ''; # set to relevant hsc flag if -auto or -auto-all
481 $PROFcaf = ''; # set to relevant hsc flag if -caf-all
482 $PROFdict = ''; # set to relevant hsc flag if -auto-dicts
483 $PROFignore_scc = ''; # set to relevant parser flag if explicit sccs ignored
484 $UNPROFscc_auto = ''; # set to relevant hsc flag if forcing auto sccs without profiling
485 $TICKYing = ''; # set to t if compiling for ticky-ticky profiling
486 $PARing = ''; # set to p if compiling for PAR
487 $GRANing = ''; # set to g if compiling for GRAN
488 $UNREGing = ($GhcWithRegisterised eq 'YES') ? '' : 'u';
489 $Specific_hi_file = ''; # set by -ohi <file>; "-" for stdout
490 $Specific_dump_file = ''; # set by -odump <file>; "-" for stdout
491 $Using_dump_file = 0;
493 $Osuffix = ''; # default: use the normal suffix for that kind of output
495 $HiSuffix_prelude = '';
497 $Do_recomp_chkr = 0; # don't use the recompilatio checker unless asked
498 $Do_cc = -1; # a MAGIC indeterminate value; will be set to 1 or 0.
501 $Keep_hc_file_too = 0;
502 $Keep_s_file_too = 0;
503 $UseGhcInternals = 0; # if 1, may use GHC* modules
505 $DoAsmMangling = 1; # on by default, off by -fno-asm-mangling
507 $Dump_parser_output = 0;
509 $Dump_asm_splitting_info = 0;
510 $NoImplicitPrelude = 0;
511 # 1 => don't tell the linker to hoist in PrelMain.Main, as an
512 # external main is provided instead.
515 } # end of initDriverGlobals (Sigh)
517 # we split the argv passed to the driver into three:
522 # and files to be linked...
528 # cmd line options prefixing the unit we're compiling
533 We inject consistency-checking information into \tr{.hc} files (both
534 when created by the Haskell compiler and when compiled by the C
535 compiler), so that we can check that an executable is made from
536 consistently-built pieces. (The check is normally done just after
537 linking.) The checking is done by introducing/munging
538 \tr{what(1)}-style strings. Anyway, here are the relevant global
539 variables and their defaults:
541 $LinkChk = 0; # set to 0 if the link check should *not* be done
543 # major & minor version numbers; major numbers must always agree;
544 # minor disagreements yield a warning.
545 $HsC_major_version = $HscMajorVersion;
546 $HsC_minor_version = $HscMinorVersion;
547 $Cc_major_version = $CcMajorVersion;
548 $Cc_minor_version = $CcMinorVersion;
550 # options: these must always agree
551 $HsC_consist_options = ''; # we record, in this order:
552 # Build tag; debugging?
553 $Cc_consist_options = ''; # we record, in this order:
554 # Build tag; debugging?
557 %************************************************************************
559 \section[Driver-parse-argv]{Munge the command-line options}
561 %************************************************************************
563 Now slurp through the arguments.
566 &initDriverGlobals();
567 &splitCmdLine(@ARGV);
568 # Run through the cmd-line first time.
569 &processArgs(@Cmd_opts);
571 # Check to see if driver is only in the business
572 # to generate dependencies
573 if ( $Status == 0 && $Only_generate_deps ) {
575 push (@MkDependHS_flags, "-o$Osuffix") if $Osuffix;
576 push (@MkDependHS_flags, "-s$BuildTag") if $BuildTag;
577 # They're not (currently) needed, but we need to quote any -#include options
578 foreach (@Cmd_opts) {
579 s/-#include.*$/'$&'/g;
581 local($to_do) = "$MkDependHS @MkDependHS_flags @HsSourceCppOpts -- @Cmd_opts -- @Input_file" ;
582 &run_something($to_do, 'Haskell dependencies');
586 # ..or just to construct a (Haskell) DLL.
587 if ( $Status == 0 && $Only_generate_dll && $EnableWin32DLLs ) {
593 # if there are several input files,
594 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
595 # (except if linking, of course)
597 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
598 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
599 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
600 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
601 print STDERR "\tPerhaps the -odir option will do what you want.\n";
606 # check for various pathological -o and -odir combinations...
607 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
608 if ($Specific_output_file eq '-') {
609 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
611 } else { # amalgamate...
612 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
613 # ToDo: check we haven't got a junk name now...
614 $Specific_output_dir = ''; # reset
618 # crash and burn if there were errors
620 print STDERR $ShortUsage;
625 %************************************************************************
627 \section[Driver-post-argv-mangling]{Setup after reading options}
629 %************************************************************************
631 %************************************************************************
633 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
635 %************************************************************************
637 We come now to the default ``wads of options'' that are turned on by
638 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
639 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
642 The user can also specify his/her own list of options in a file; in
643 that case, the work is already done (see stuff about @minusO3@,
646 GHC allows very precise control of what happens during a compilation.
647 Core-to-Core and STG-to-STG passes can be run in any order, as many
648 times as you like. Individual transformations can be turned on or
651 Sadly, however, there are some interdependencies \& Things You Must
652 Not Do. Here is the list.
656 \item[\tr{-fspecialise}:]
657 The specialiser must have dependency-analysed input; but if you run
658 the simplifier to do this, you must not let it toss away unused
659 bindings! (The typechecker conveys some specialisation info via
660 ``unused'' bindings...)
662 \item[\tr{-ffloat-inwards}:]
663 Floating inwards should be done before strictness analysis, because
664 the latter will give better results.
666 \item[\tr{-fstatic-args}:]
667 The static-arguments-transformation pass {\em must} have the
668 simplifier run right after it.
670 \item[\tr{-fcalc-inlinings[12]}:]
671 Not required, but there may be slight gains by re-simplifying after
672 this is done. (You could then \tr{-fcalc-inlinings} again, just for
675 \item[\tr{-ffull-laziness}:]
676 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
677 that's run. (Um, well, howzabout the simplifier just once more...)
682 \item[\tr{-fupdate-analysis}:]
683 It really really wants to be the last STG-to-STG pass that is run.
688 sub setupOptimiseFlags {
690 # this pass-ordering sequence was agreed by Simon and Andr\'e
691 # (WDP 94/07, 94/11).
698 $Oopt_MaxSimplifierIterations,
702 $Oopt_FinalStgProfilingMassage
705 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
709 '-fdo-eta-reduction',
710 '-fdo-lambda-eta-expansion',
714 $Oopt_PedanticBottoms,
716 # initial simplify: mk specialiser happy: minimum effort please
720 '-finline-phase0', # Don't inline anything till full laziness has bitten
721 # In particular, inlining wrappers inhibits floating
722 # e.g. ...(case f x of ...)...
723 # ==> ...(case (case x of I# x# -> fw x#) of ...)...
724 # ==> ...(case x of I# x# -> case fw x# of ...)...
725 # and now the redex (f x) isn't floatable any more
726 '-fmax-simplifier-iterations2',
729 # Specialisation is best done before full laziness
730 # so that overloaded functions have all their dictionary lambdas manifest
731 ($Oopt_DoSpecialise) ? ( $Oopt_DoSpecialise, ) : (),
737 # # Run the simplifier before specialising, so that overloaded functions
738 # # look like f = \d -> ...
739 # # (Full laziness may lift out something hiding the \d
741 # '-fmax-simplifier-iterations1',
748 # Want to run with inline phase 1 after the specialiser to give
749 # maximum chance for fusion to work before we inline build/augment
750 # in phase 2. This made a difference in 'ansi' where an overloaded
751 # function wasn't inlined till too late.
752 $Oopt_MaxSimplifierIterations,
755 $Oopt_UsageSPInf, # infer usage information here in case we need it later.
756 # (add more of these where you need them --KSW 1999-04)
760 # Need inline-phase2 here so that build/augment get
761 # inlined. I found that spectral/hartel/genfft lost some useful
762 # strictness in the function sumcode' if augment is not inlined
763 # before strictness analysis runs
766 $Oopt_MaxSimplifierIterations,
776 $Oopt_MaxSimplifierIterations,
777 # No -finline-phase: allow all Ids to be inlined now
780 '-fcse', # CSE must immediately follow a simplification pass, because it relies
781 # on the no-shadowing invariant. See comments at the top of CSE.lhs
783 '-ffull-laziness', # nofib/spectral/hartel/wang doubles in speed if you
784 # do full laziness late in the day. It only happens
785 # after fusion and other stuff, so the early pass doesn't
786 # catch it. For the record, the redex is
787 # f_el22 (f_el21 r_midblock)
790 # Case-liberation for -O2. This should be after
791 # strictness analysis and the simplification which follows it.
795 # : "-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 ]" ),
797 # Final clean-up simplification:
801 $Oopt_MaxSimplifierIterations,
802 # No -finline-phase: allow all Ids to be inlined now
809 $Oopt_FinalStgProfilingMassage,
815 # SPECIAL FLAGS for -O2
817 '-fupdate-analysis', # virtually useless; relegated to -O2
824 Sort out what we're going to do about optimising. First, the @hsc@
825 flags and regular @cc@ flags to worry about:
827 if ( $OptLevel <= 0 ) {
829 # for this level, we tell the parser -fignore-interface-pragmas
830 push(@HsC_flags, '-fignore-interface-pragmas');
831 # and tell the compiler not to produce them
832 push(@HsC_flags, '-fomit-interface-pragmas');
834 &add_Hsc_flags( @HsC_minusNoO_flags );
835 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
837 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
839 &add_Hsc_flags( @HsC_minusO_flags );
840 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
841 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
842 # but it *is* useful in compiling the garbage collector.
844 } else { # -Ofile, then...
846 &add_Hsc_flags( @HsC_minusO3_flags );
847 push(@HsC_flags, $Oopt_FinalStgProfilingMassage) if $Oopt_FinalStgProfilingMassage;
849 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
852 } # setupOptimiseFlags
856 %************************************************************************
858 \subsection{Check for consistency, etc.}
860 %************************************************************************
862 Sort out @$BuildTag@, @$PROFing@, @$PARing@,
863 @$GRANing@, @$TICKYing@, @UNREGing@:
865 sub setupBuildFlags {
868 # PROFILING stuff after argv mangling:
870 # add -auto sccs even if not profiling !
871 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
874 push(@HsC_flags, $PROFauto) if $PROFauto;
875 push(@HsC_flags, $PROFcaf) if $PROFcaf;
876 push(@HsC_flags, $PROFdict) if $PROFdict;
878 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
880 # Ignore user sccs when auto annotating, but warn when doing so.
881 $PROFignore_scc = '-W' if $PROFauto;
883 #if ( $BuildTag ne '' ) {
884 # local($b) = $BuildDescr{$BuildTag};
885 # if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
886 # if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
887 # if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
889 # # ok to have a user-way profiling build
890 # # eval the profiling opts ... but leave user-way BuildTag
891 # if ($PROFing eq 'p') { &processArgs(split(' ', $SetupOpts{'_p'})); } # eval($EvaldSetupOpts{'_p'}); }
893 if ( $PROFing eq 'p' ) {
894 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
895 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
896 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
899 } elsif ( $PARing eq 'p' ) {
900 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
901 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
904 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
905 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
909 } elsif ( $GRANing eq 'g' ) {
910 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
913 } elsif ( $TICKYing eq 't' ) {
916 } elsif ( $UNREGing eq 'u' ) {
917 if ($GhcWithRegisterised eq 'YES') {
923 After the sanity checks, add flags to the necessary parts of the driver pipeline:
926 if ( $BuildTag ne '' ) { # something other than normal sequential...
928 local($Tag) = "${BuildTag}";
929 $Tag =~ s/_//; # move the underscore to the back
931 $HscOut = '-C='; # must go via C
932 &processArgs(split(' ', $SetupOpts{$BuildTag}));
933 # eval($EvaldSetupOpts{$BuildTag});
937 Decide what the consistency-checking options are in force for this run:
940 $HsC_consist_options = "${BuildTag},${DEBUGging}";
941 $Cc_consist_options = "${BuildTag},${DEBUGging}";
944 # Funny place to put it, but why not.
946 if ( $HiSuffix_prelude eq '' ) {
948 if ($CompilingPrelude) {
949 $HiSuffix_prelude = "$HiSuffix" if $CompilingPrelude;
951 local($Tag) = "${BuildTag}";
954 $Tag = "${Tag}_" if $Tag ne '';
955 $HiSuffix_prelude="${Tag}hi";
961 %************************************************************************
963 \subsection{Add on machine-specific C-compiler flags}
965 %************************************************************************
967 Shove on magical machine-specific options. We use \tr{unshift} to
968 stick them on the {\em front} of the arrays, so that ``later''
969 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
971 Note: a few ``always apply'' flags were set at the very beginning.
976 if ($TargetPlatform =~ /^alpha-/) {
977 unshift(@CcBoth_flags, ('-static'));
979 } elsif ($TargetPlatform =~ /^hppa/) {
980 unshift(@CcBoth_flags, ('-static'));
982 # We don't put in '-mlong-calls', because it's only
983 # needed for very big modules (sigh), and we don't want
984 # to hobble ourselves further on all the other modules
987 # [Dated comment (gcc-2.6.x?), -mlong-calls is no longer
988 # a supported gcc HPPA flag]
989 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
990 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
991 # (very nice, but too bad the HP /usr/include files don't agree.)
993 } elsif ($TargetPlatform =~ /^i386-/) {
994 # -fno-defer-pop : basically the same game as for m68k
996 # -fomit-frame-pointer : *must* in .hc files; because we're stealing
997 # the fp (%ebp) for our register maps.
999 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1000 unshift(@CcRegd_flags_hc, '-fomit-frame-pointer');
1001 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1003 unshift(@CcBoth_flags, ('-DDONT_WANT_WIN32_DLL_SUPPORT')) if ($Static);
1005 } elsif ($TargetPlatform =~ /^m68k-/) {
1006 # -fno-defer-pop : for the .hc files, we want all the pushing/
1007 # popping of args to routines to be explicit; if we let things
1008 # be deferred 'til after an STGJUMP, imminent death is certain!
1010 # -fomit-frame-pointer : *don't*
1011 # It's better to have a6 completely tied up being a frame pointer
1012 # rather than let GCC pick random things to do with it.
1013 # (If we want to steal a6, then we would try to do things
1014 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1016 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1017 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1018 # maybe gives reg alloc a better time
1019 # also: -fno-defer-pop is not sufficiently well-behaved without it
1021 } elsif ($TargetPlatform =~ /^mips-/) {
1022 unshift(@CcBoth_flags, ('-static'));
1024 } elsif ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1025 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1026 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1027 } elsif ($TargetPlatform =~ /^sparc-/) {
1029 } # end of setupMachOpts
1032 %************************************************************************
1034 \subsection{Set up for warnings}
1036 %************************************************************************
1038 Several warnings are turned on by default. These are supposed to be
1039 the 'I'm pretty sure you've made a mistake here' kind of warnings.
1040 The rest are turned on by the -W and -Wall options, or individually
1041 via their -fwarn and -fno-warn flags.
1044 sub setupWarningFlags {
1045 &add_Hsc_flags( @StandardWarnings );
1049 Same unshifting magic, but for special linker flags.
1051 The configure script determines whether the object file symbol tables
1052 have a leading underscore, and sets @LeadingUnderscore@ accordingly.
1053 (The driver script `sees' the setting of the @LeadingUnderscore@
1054 by having the Makefile prepend it).
1058 local($uscore) = ( ${LeadingUnderscore} eq 'YES' ) ? '_' : '';
1061 (($Ld_main) ? ( '-u', "${uscore}Main_" . $Ld_main . '_closure' ) : ()));
1063 # things that are referenced by the RTS - make sure that we pull 'em in
1065 ( '-u', "${uscore}PrelBase_Izh_static_info"
1066 ,'-u', "${uscore}PrelBase_Czh_static_info"
1067 ,'-u', "${uscore}PrelBase_Fzh_static_info"
1068 ,'-u', "${uscore}PrelBase_Dzh_static_info"
1069 ,'-u', "${uscore}PrelAddr_Azh_static_info"
1070 ,'-u', "${uscore}PrelAddr_Wzh_static_info"
1071 ,'-u', "${uscore}PrelAddr_I64zh_static_info"
1072 ,'-u', "${uscore}PrelAddr_W64zh_static_info"
1073 ,'-u', "${uscore}PrelStable_StablePtr_static_info"
1074 ,'-u', "${uscore}PrelBase_Izh_con_info"
1075 ,'-u', "${uscore}PrelBase_Czh_con_info"
1076 ,'-u', "${uscore}PrelBase_Fzh_con_info"
1077 ,'-u', "${uscore}PrelBase_Dzh_con_info"
1078 ,'-u', "${uscore}PrelAddr_Azh_con_info"
1079 ,'-u', "${uscore}PrelAddr_Wzh_con_info"
1080 ,'-u', "${uscore}PrelAddr_I64zh_con_info"
1081 ,'-u', "${uscore}PrelAddr_W64zh_con_info"
1082 ,'-u', "${uscore}PrelStable_StablePtr_con_info"
1083 ,'-u', "${uscore}PrelBase_False_static_closure"
1084 ,'-u', "${uscore}PrelBase_True_static_closure"
1085 ,'-u', "${uscore}PrelPack_unpackCString_closure"
1086 ,'-u', "${uscore}PrelException_stackOverflow_closure"
1087 ,'-u', "${uscore}PrelException_heapOverflow_closure"
1088 ,'-u', "${uscore}PrelException_NonTermination_static_closure"
1090 if (!$NoHaskellMain) {
1091 unshift (@Ld_flags,'-u', "${uscore}PrelMain_mainIO_closure");
1093 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1094 # sometimes we have lots of toc entries...
1095 # unshift(@Ld_flags, ('-Xlinker -bbigtoc -Xlinker -bnoquiet'));
1096 unshift(@Ld_flags, ('-Xlinker -bbigtoc'));
1100 } # end of setupLinkOpts
1104 %************************************************************************
1106 \subsection{Set up include paths and system-library enslurpment}
1108 %************************************************************************
1110 Now that we know what garbage-collector, etc., are required, we can
1111 finalise our list of libraries to slurp through, and generally Get
1116 # default includes must be added AFTER option processing
1117 if ( ! $INSTALLING ) {
1118 push (@Include_dir, "$TopPwd/${CURRENT_DIR}/${GHC_INCLUDE_DIR}");
1120 push (@Include_dir, "$InstLibDirGhc/includes");
1121 push (@Include_dir, "$InstLibDirGhc/includes");
1123 } # end of setupIncPaths
1128 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1131 foreach $f (@SysLibrary) {
1132 next if $f =~ /_cbits/;
1133 $f .= $BuildTag if $f =~ /^-lHS/;
1136 # Push library HSrts, plus boring clib bit
1137 push(@SysLibrary, "-lHSrts${BuildTag}");
1140 # RTS compiled with cygwin32, uses the WinMM API
1141 # to implement the itimers, since cygwin.dll does not
1142 # support it. Only reqd. for `ways' that use itimers.
1144 push(@SysLibrary, '-lwinmm') if ($TargetPlatform =~ /-(mingw32|cygwin32)$/);
1145 # Note: currently only tested with mingw, may cause conflicts when linking
1147 push(@SysLibrary, '-lwsock32') if ($TargetPlatform =~ /-(mingw32|cygwin32)$/);
1149 # Push the pvm libraries
1150 if ($BuildTag eq '_mp') {
1151 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1152 push(@SysLibrary, "-L$pvmlib", '-lgpvm3', '-lpvm3');
1153 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1154 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1155 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1156 push(@SysLibrary, '-lsocket', '-lnsl');
1160 # Push the GNU multi-precision arith lib; and the math library
1162 # If this machine has GMP already installed, then we'll get the installed
1163 # lib here, because presumably the one in the tree won't have been built.
1165 if ($LibGmp eq 'not-installed') {
1166 push(@SysLibrary, "-lgmp");
1168 push(@SysLibrary, "-l$LibGmp");
1171 push(@SysLibrary, '-lm') if !( $TargetPlatform =~ /^.*(cygwin32|mingw32)$/ );
1174 %************************************************************************
1176 \subsection{Check that this system was built to do what we are asking}
1178 %************************************************************************
1180 Before continuing we check that the appropriate build is available.
1183 #die "$Pgm: no BuildAvail?? $BuildTag\n" if $BuildDescr{$BuildTag} eq '' ; # sanity
1185 if ( $BuildDescr{$BuildTag} eq '' ) {
1186 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1187 "' \"build\" is not available with your GHC setup.\n";
1188 print STDERR "(It was not configured for it at your site.)\n";
1189 print STDERR $ShortUsage;
1193 } # end of setupSyslibs
1197 %************************************************************************
1199 \subsection{Final miscellaneous setup bits before we start going}
1201 %************************************************************************
1203 Record largest specific heapsize, if any.
1205 sub setupHeapStackSize {
1206 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1207 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1208 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1209 push(@HsC_rts_flags, "-K$Specific_stk_size");
1213 If no input or link files seen, then we let 'em feed in stdin; this is
1214 mainly for debugging.
1218 if ($#Input_file < 0 && $#Link_file < 0) {
1219 @Input_file = ( '-' );
1221 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1222 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n" if -t;
1223 while (<STDIN>) { print INF $_; }
1224 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1229 Tell the world who we are, if they asked.
1231 print STDERR "${ProjectName}, version ${ProjectVersion}, patchlevel ${ProjectPatchLevel}\n"
1235 %************************************************************************
1237 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1239 %************************************************************************
1241 Process the input files; don't continue with linking if there are
1242 problems (global variable @$Status@ non-zero).
1244 foreach $ifile (@Input_file) {
1245 &ProcessInputFile($ifile);
1248 # don't link if there were errors...
1249 if ( $Status > 0 ) {
1250 print STDERR $ShortUsage;
1255 # Link if appropriate.
1256 &runLinker() if $Do_lnkr;
1258 # that... that's all, folks!
1260 exit $Status; # will still be 0 if all went well
1263 %************************************************************************
1265 \section[Driver-do-one-file]{How to process a single input file}
1267 %************************************************************************
1270 sub ProcessInputFile {
1271 local($ifile) = @_; # input file name
1272 local($ifile_root); # root of or basename of input file
1273 local($ofile_target); # ultimate output file we hope to produce
1274 # from input file (need to know for recomp
1275 # checking purposes)
1276 local($hifile_target);# ditto (but .hi file)
1277 local($ofile_c_stub_target);
1278 local($ofile_h_stub_target);
1281 Handle the weirdity of input from stdin.
1283 if ($ifile ne '-') {
1284 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1285 $ofile_target = # may be reset later...
1286 ($Specific_output_file ne '' && ! $Do_lnkr)
1287 ? $Specific_output_file
1288 : &odir_ify($ifile_root, 'o');
1289 $hifile_target= ($Specific_hi_file ne '')
1291 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1292 # NB: may change if $ifile_root isn't module name (??)
1293 ($ofile_c_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.c/;
1294 ($ofile_h_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.h/;
1296 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1297 $ifile_root = '_stdin';
1298 $ofile_target = '_stdout'; # gratuitous?
1299 $hifile_target= '_stdout'; # ditto?
1303 We need to decide what phases of the compilation system we will run
1304 over this file. The defaults are the ones established when processing
1305 flags. (That established what the last phase run for all files is.)
1307 We do the pre-recompilation-checker phases here; the rest later.
1311 Look at the suffix and decide what initial phases of compilation may
1312 be dropped off for this file. Also the rather boring business of
1313 which files are coming-in/going-out.
1315 Again, we'll do the post-recompilation-checker parts of this later.
1317 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1318 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1321 # names of the files to stuff between phases
1322 # defaults are temporaries
1323 local($in_lit2pgm) = $ifile;
1324 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1325 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1326 local($hsc_hi) = "$Tmp_prefix.hi";
1327 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1328 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1329 local($as_out) = $ofile_target;
1331 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
1333 # OK, let's strip off some literate junk..
1335 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
1337 $lit2pgm_hscpp = $ifile;
1343 # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas
1344 &check_for_source_options($lit2pgm_hscpp,$ifile);
1346 # Options found in the source file take a back seat, i.e., we scan
1347 # them first. Only process the command line again if source file
1348 # contained anything of interest *or* there's more than one
1349 # input file (we have to reset the options).
1351 if ( $#Input_file >= 0 || $#File_options >= 0) {
1352 #@File_options = (@File_options, @Cmd_opts);
1354 # Now process the command line
1355 &initDriverGlobals();
1356 &processArgs((@File_options,@Cmd_opts));
1357 print STDERR "\nEffective command line: " .
1358 join(' ',(@File_options,@Cmd_opts)) . "\n" if $Verbose;
1361 # Having got the effective command line scanned, set up
1362 # the various options in prep for some real work.
1364 # check the sanity of the BuildTag we're about to use,
1365 # and if needs be, add some more flags and setup to
1366 # the different phases.
1369 &setupOptimiseFlags();
1372 &setupWarningFlags();
1373 &setupHeapStackSize();
1376 # These two variables need to be set after the
1377 # command-line has been processed and the build options
1378 # have be seen set up. This is because command-line options
1379 # can control whether to compile vias C or not.
1381 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1383 : ( ($HscOut eq '-C=') ? 1 : 0 );
1384 local($do_as) = $Do_as;
1385 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1386 local($hsc_out_c_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.c" : "";
1387 local($hsc_out_h_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.h" : "";
1389 if ($Only_preprocess_hc) { # stop after having run $Cc -E
1392 if ($Only_preprocess_C) { # stop after having run $hscpp
1393 $do_hsc=0; $do_cc = 0; $do_as=0;
1394 } elsif ($ifile =~ /.lhs$/ || $ifile =~ /.hs$/ ) {
1396 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
1397 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1399 $hsc_out_c_stub = '';
1400 $hsc_out_h_stub = '';
1401 } elsif ($ifile =~ /\.c$/) {
1402 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1403 $hsc_out = $ifile; $is_hc_file = 0;
1404 $hsc_out_c_stub = '';
1405 $hsc_out_h_stub = '';
1406 } elsif ($ifile =~ /\.[sS]$/) {
1407 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
1409 } else { # don't know what it is, but nothing to do herein...
1410 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
1413 # hack to avoid running hscpp
1414 $HsCpp = $Cat if ! $Cpp_flag_set;
1416 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) if $do_hscpp;
1420 We now think about whether to run hsc/cc or not (when hsc produces .s
1421 stuff, it effectively takes the place of both phases).
1422 To get the output file name right: for each phase that we are {\em
1423 not} going to run, set its input (i.e., the output of its preceding
1424 phase) to @"$ifile_root.<suffix>"@.
1427 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
1430 # Warning issued if -keep-hc-file-too is used without
1431 # -fvia-C (or the equivalent)
1433 if ( $HscOut ne '-C=' && $Keep_hc_file_too ) {
1434 print STDERR "$Pgm: warning: Native code generator to be used, -keep-hc-file-too will be ignored\n";
1437 if (! $do_cc && ! $do_as) { # stopping after hsc
1438 $hsc_out = ($Specific_output_file ne '')
1439 ? $Specific_output_file
1440 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
1442 $ofile_target = $hsc_out; # reset
1445 if (! $do_as) { # stopping after gcc (or hsc)
1446 $cc_as = ($Specific_output_file ne '')
1447 ? $Specific_output_file
1448 : &odir_ify($ifile_root, ( $Only_preprocess_hc ) ? 'i' : 's');
1450 $ofile_target = $cc_as; # reset
1456 Now the Haskell compiler, C compiler, and assembler
1460 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
1461 $ofile_target, $hifile_target,
1462 $going_interactive);
1465 if (-f $hsc_out_h_stub) {
1466 &run_something("cp $hsc_out_h_stub $ofile_h_stub_target", 'Copy foreign export header file');
1469 if (-f $hsc_out_c_stub) {
1470 &run_something("rm -f $ofile_c_stub_target && echo '#include \"${ofile_h_stub_target}\"' > $ofile_c_stub_target && cat $hsc_out_c_stub >> $ofile_c_stub_target", 'Copy foreign export C stubs');
1471 local ($hsc_out_s_stub);
1472 local ($hsc_out_o_stub);
1473 ($ofile_s_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$/\.s/;
1474 ($ofile_o_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$/\.o/;
1476 &runGcc (0, $ofile_c_stub_target, $ofile_s_stub_target);
1477 &runAs ($ofile_o_stub_target, $ofile_s_stub_target);
1480 # Bring the C stub protos into scope when compiling the .hc file.
1482 push (@CcInjects, "#include \"${hsc_out_h_stub}\"\n");
1483 # Hack - ensure that the stub .h file is included in the OPTIONS section
1484 # if the .hc file is saved.
1485 push (@File_options, "-#include \"${ofile_h_stub_target}\"\n");
1490 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
1491 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root) if ! $Only_preprocess_hc;
1494 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
1496 # save a copy of the .s file..
1497 &saveIntermediate($ifile_root , "s" , $cc_as) if ($do_as && $Keep_s_file_too);
1498 &runAs($as_out, $ifile_root) if $do_as;
1501 Finally, decide what to queue up for linker input.
1503 # tentatively assume we will eventually produce linker input:
1504 push(@Link_file, &odir_ify($ifile_root, 'o'));
1506 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
1508 if ( $ifile !~ /\.(lhs|hs|hc|c|s|a|S)$/ && $ifile !~ /_hc$/ ) {
1509 # There's sometimes confusion regarding .hi files; users
1510 # supplying them on the command line.
1511 if ( $ifile =~ /\.hi$/ ) {
1512 print STDERR "$Pgm: warning: found `$ifile' on command line; interface files should not be supplied here - ignoring it.\n";
1514 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n";
1516 # oops; we tentatively pushed the wrong thing; fix & do the right thing
1517 pop(@Link_file); push(@Link_file, $ifile);
1521 } # end of ProcessInputFile
1524 %************************************************************************
1526 \section[Driver-run-phases]{Routines to run the various phases}
1528 %************************************************************************
1532 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
1536 # Only add #line pragma if we're going to need it.
1537 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && " if ($Cpp_flag_set);
1538 $to_do .= "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
1540 push(@Files_to_tidy, $lit2pgm_hscpp );
1542 &run_something($to_do, 'literate pre-processor');
1548 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
1552 # Strictly speaking, echoing of the following line pragma is only required
1553 # on non-delit'ed input, as we've already added it during de-lit. However,
1554 # hscpp will then add a {-# LINE 1 "$lit2pgm_hsc" -} to the top of the file,
1555 # which is not very informative (but harmless). Hence, we uniformly have
1556 # {-# LINE 1 "$in_lit2pgm" #-} as the first line to all cpp'ed hsc input.
1558 $to_do = "echo '{-# LINE 1 \"$in_lit2pgm\" -}' > $hscpp_hsc && ";
1560 if ($HsCpp eq $Cat) {
1561 $to_do .= "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
1562 push(@Files_to_tidy, $hscpp_hsc );
1563 &run_something($to_do, 'Ineffective C pre-processor');
1565 local($includes) = '-I' . join(' -I',@Include_dir);
1566 $to_do .= "$HsCpp $Verbose @HsCpp_flags @HsSourceCppOpts $includes $lit2pgm_hscpp >> $hscpp_hsc";
1567 push(@Files_to_tidy, $hscpp_hsc );
1568 &run_something($to_do, 'Haskellised C pre-processor');
1571 if ( $Only_preprocess_C ) {
1572 $to_do = "$Cat $hscpp_hsc";
1573 &run_something($to_do, '');
1581 sub runHscAndProcessInterfaces {
1582 local($ifile, $hscpp_hsc, $ifile_root,
1583 $ofile_target, $hifile_target,
1584 $going_interactive) = @_;
1586 # $ifile is the original input file
1587 # $hscpp_hsc post-unlit, post-cpp, etc., input file
1588 # $ifile_root input filename minus suffix
1589 # $ofile_target the output file that we ultimately hope to produce
1590 # $hifile_target the .hi file ... (ditto)
1592 local($source_unchanged) = 1;
1594 # Check if the source file is up to date relative to the target; in
1595 # that case we say "source is unchanged" and let the compiler bail out
1596 # early if the import usage information allows it.
1598 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
1599 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
1601 # The informational messages below are now conditional on -v being set -- SOF
1602 if ( $ofile_target ne "_stdin.s" && ! -f $ofile_target ) {
1603 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n" if $Verbose;
1604 $source_unchanged = 0;
1607 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
1608 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
1610 if ( $hifile_target ne "_stdout" && ! -f $hifile_target ) {
1611 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n" if $Verbose;
1612 $source_unchanged = 0;
1615 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
1616 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
1618 if ( $ofile_target ne "_stdin.s" && $i_mtime > $o_mtime) {
1619 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n" if $Verbose;
1620 $source_unchanged = 0;
1623 # Tell the compiler which version we're using
1624 push(@HsC_flags, "-fhi-version=${ProjectVersionInt}");
1626 # So if source_unchanged is still "1", we pass on the good news to the compiler
1627 # The -recomp flag can disable this, forcing recompilation
1628 if ($Do_recomp_chkr && $source_unchanged) {
1629 push(@HsC_flags, '-fsource-unchanged');
1632 # Indicate whether we're static or not.
1633 # This will only ever
1634 push(@HsC_flags, '-static') if $Static;
1638 &runHsc($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive);
1640 # See if it bailed out early, saying nothing needed doing.
1641 # We work this out by seeing if it created an output .hi file
1643 if ( ! -f $hsc_hi && $ProduceHi !~ /-nohifile=/ ) {
1644 # Doesn't exist, so we bailed out early.
1645 # Tell the C compiler and assembler not to run
1646 $do_cc = 0; $do_as = 0;
1648 # Update dependency info, touch both object file and
1649 # interface file, so that the following invariant is
1652 # a dependent module's interface file should after recompilation
1653 # checking be newer than the interface files of its imports.
1655 # That is, if module A's interface file changes, then module B
1656 # (which import from A) needs to be checked.
1657 # If A's change does not affect B, which causes the compiler to bail
1658 # out early, we still need to touch the interface file of B. The reason
1659 # for this is that B may export A's interface.
1661 &run_something("touch $ofile_target",
1662 "Touch $ofile_target, to propagate dependencies") if $HscOut ne '-N=';
1663 &run_something("touch $hifile_target",
1664 "Touch $hifile_target, to propagate dependencies") if $ProduceHi =~ /-nohifile=/ ;
1668 # Didn't bail out early (new .hi file) so we thunder on
1670 # If non-interactive, heave in the consistency info at the end
1671 # NB: pretty hackish (depends on how $output is set)
1672 if ( ! $going_interactive ) {
1673 if ( $HscOut eq '-C=' ) {
1674 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
1676 } elsif ( $HscOut eq '-S=' ) {
1677 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
1678 $consist =~ s/,/./g;
1679 $consist =~ s/\//./g;
1680 $consist =~ s/-/_/g;
1681 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
1682 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
1684 &run_something($to_do, 'Pin on Haskell consistency info');
1688 # Interface-handling is important enough to live off by itself
1689 if ( $ProduceHi !~ /-nohifile=/ ) { # If we've produced one, process it.
1690 require('ghc-iface.prl') || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
1691 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
1693 # if we're going to split up object files,
1694 # we inject split markers into the .hc file now
1695 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
1696 &inject_split_markers ( $hsc_out );
1699 # save a copy of the .hc file, even if we are carrying on...
1700 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
1701 &saveIntermediate($ifile_root , "hc" , $hsc_out);
1711 local($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive) = @_;
1713 &makeHiMap() unless $HiMapDone;
1714 push(@HsC_flags, "\"-himap=$HiIncludeString\"");
1715 push(@HsC_flags, "\"-himap-sep=${SplitMarker}\"");
1717 # here, we may produce .hc/.s and/or .hi files
1718 local($output) = '';
1719 #@Files_to_tidy = ();
1721 if ( $going_interactive ) {
1722 # don't need .hi unless we're going to show it on stdout:
1723 $ProduceHi = '-nohifile=' if ! ($HiOnStdout || $Specific_hi_file ne '' );
1724 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
1727 # set up for producing output/.hi; note that flag twiddling
1728 # may mean that nothing will actually be produced:
1729 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out -F=$hsc_out_c_stub -FH=$hsc_out_h_stub";
1730 push(@Files_to_tidy, $hsc_hi, $hsc_out, $hsc_out_c_stub, $hsc_out_h_stub );
1732 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
1733 if ( $CollectingGCstats ) {
1734 push(@HsC_rts_flags, "-S$ifile_root.stat");
1735 push(@Files_to_tidy, "$ifile_root.stat");
1738 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
1739 # emit nofibbish time/bytes-alloc stats to stderr;
1740 # see later .stat file post-processing
1741 print STDERR "warning: both -Rgc-stats and -Rghc-timing used, -Rghc-timing wins." if $CollectingGCstats;
1742 push(@HsC_rts_flags, "-S$Tmp_prefix.stat");
1743 push(@Files_to_tidy, "$Tmp_prefix.stat");
1747 if ($Specific_dump_file ne '') {
1748 $dump = "2>> $Specific_dump_file";
1749 $Using_dump_file = 1;
1753 # Win32 only: If the command processor used by system()
1754 # exec()s the application as an ordinary Win32 executable,
1755 # we're in trouble here, since the command line is likely
1756 # to be > 255 chars long. To work around this situation,
1757 # $HsC also understands `at-files', i.e., `@file' on the
1758 # command line will cause $HsC to add the contents of `file'
1759 # to the command line.
1761 # [ Note: support for `at-files' is not compiled in by default ]
1762 $cmd_line_opts_via_at_file=0;
1763 if ($cmd_line_opts_via_at_file) {
1765 local($to_do_opts) = "$Tmp_prefix.opts";
1766 open(OPTS, "> $Tmp_prefix.opts") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.opts\n");
1767 print OPTS "$dump @HsC_flags $CoreLint $USPLint $StgLint $Verbose";
1769 $to_do = "$HsC $hscpp_hsc \@$Tmp_prefix.opts $output +RTS @HsC_rts_flags";
1773 $to_do = "$HsC $hscpp_hsc $dump @HsC_flags $CoreLint $USPLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
1775 &run_something($to_do, 'Haskell compiler');
1777 # finish business w/ nofibbish time/bytes-alloc stats
1778 &process_ghc_timings() if $CollectGhcTimings;
1782 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
1783 of (module-name, pathname) pairs, one per line, separated by a space.
1786 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1790 # collect in %HiMap; write later; also used elsewhere in driver
1792 local($mod, $path, $d, $e);
1794 # reset the global variables:
1796 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1798 foreach $d ( @Import_dir ) {
1799 if ($HiIncludeString) {
1800 $HiIncludeString = "$HiIncludeString${SplitMarker}${d}%.${HiSuffix}";
1802 $HiIncludeString = "$d%.${HiSuffix}";
1807 foreach $d ( @SysImport_dir ) {
1808 if ($HiIncludeString) {
1809 $HiIncludeString = "$HiIncludeString${SplitMarker}${d}%.${HiSuffix_prelude}";
1811 $HiIncludeString = "${d}%.${HiSuffix_prelude}";
1820 Invoke the 'linker' - either the standard linker or the one used to build
1826 local($libdirs) = '';
1828 # append last minute flags linker and consistency flags
1833 # glue them together:
1834 push(@UserLibrary_dir, @SysLibrary_dir);
1836 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1838 # for a linker, use an explicitly given one, or the going C compiler ...
1839 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1841 if ( ($Specific_output_file eq '') &&
1842 ($TargetPlatform eq 'i386-unknown-cygwin32') ) {
1843 $Specific_output_file = 'main.exe';
1844 print STDERR "Output file not specified, defaulting to \"main.exe\"\n";
1847 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1848 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1850 &prepareWin32DllLink(1);
1852 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $TopClosureFile $libdirs @UserLibrary @SysLibrary";
1853 &run_something($to_do, 'Linker');
1855 # finally, check the consistency info in the binary
1856 local($executable) = $Files_to_tidy[0];
1857 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1860 # dynamically load consistency-chking code; then do it.
1861 require('ghc-consist.prl')
1862 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1864 &chk_consistency_info ( $executable );
1867 # if PVM parallel stuff, we do truly weird things.
1868 # Essentially: (1) move the executable over to where PVM expects
1869 # to find it. (2) create a script in place of the executable
1870 # which will cause the program to be run, via SysMan.
1871 if ( $PARing eq 'p' ) {
1872 local($pvm_executable) = $executable;
1873 local($pvm_executable_base);
1875 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1876 local($pwd) = `pwd`;
1878 $pwd =~ s/^\/tmp_mnt//;
1879 $pvm_executable = "$pwd/$pvm_executable";
1882 $pvm_executable =~ s|/|=|g; # make /s into =s
1883 $pvm_executable_base = $pvm_executable;
1885 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1886 . "/$pvm_executable";
1888 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1890 # OK, now create the magic script for "$executable"
1891 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1892 print EXEC <<EOSCRIPT1;
1893 eval 'exec perl -S \$0 \${1+"\$@"}'
1894 if \$running_under_some_shell;
1895 # =!=!=!=!=!=!=!=!=!=!=!
1896 # This script is automatically generated: DO NOT EDIT!!!
1897 # Generated by Glasgow Haskell, version ${ProjectVersion} ${ProjectPatchLevel}
1899 \$pvm_executable = '$pvm_executable';
1900 \$pvm_executable_base = '$pvm_executable_base';
1901 \$SysMan = '$SysMan';
1904 print EXEC <<\EOSCRIPT2;
1905 # first, some magical shortcuts to run "commands" on the binary
1907 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1909 system("$cmd $pvm_executable");
1913 # OK, really run it; process the args first
1914 $ENV{'PE'} = $pvm_executable_base;
1916 $nprocessors = 2; # the default
1920 # ToDo: handle --RTS
1921 args: while ($a = shift(@ARGV)) {
1922 if ( $a eq '+RTS' ) {
1924 } elsif ( $a eq '-RTS' ) {
1927 if ( $a eq '-d' && $in_RTS_args ) {
1929 } elsif ( $a =~ /^-N(\d+)/ && $in_RTS_args ) {
1932 push(@nonPVM_args, $a);
1936 local($return_val) = 0;
1937 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
1939 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
1942 close(EXEC) || die "Failed closing $executable\n";
1943 chmod 0755, $executable;
1951 # append last minute flags linker and consistency flags
1956 # glue them together:
1957 push(@UserLibrary_dir, @SysLibrary_dir);
1959 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1961 &prepareWin32DllLink(0);
1963 local ($bld_dll) = "dllwrap";
1965 local ($output) = ($Specific_output_file ne '') ? "$Specific_output_file" : 'HSdll.dll';
1966 local ($output_dir);
1967 local ($output_file);
1968 local ($output_lib, $output_def);
1970 ($output_dir = $output) =~ s|(.*/)[^/]+$|$1|;
1971 $output_dir = "" if ($output_dir eq $output);
1972 ($output_file = $output) =~ s|.*/([^/]+)$|$1|;
1974 ($output_lib = $output_file) =~ s|(.+)\.[^\.]*$|${output_dir}lib$1_imp.a|;
1975 ($output_def = $output_file) =~ s|(.+)\.[^\.]*$|${output_dir}$1.def|;
1977 push (@Dll_flags, "-mno-cygwin --target=i386-mingw32") if ($TargetPlatform =~ /^.*mingw32$/);
1978 push (@Dll_flags, "--output-lib $output_lib");
1979 # If the "--def " option hasn't been supplied, assume everything
1980 # is going to be exported via the DLL.."
1981 if (!grep(/--def/, @Dll_flags)) {
1982 push (@Dll_flags, "--export-all --output-def $output_def");
1985 local($to_do) = "$bld_dll @Dll_flags -o $output @Link_file $libdirs @UserLibrary @SysLibrary";
1986 # Make sure the user sees this piece of magic.
1987 print STDERR "$to_do\n" if (!$Verbose);
1988 &run_something($to_do, 'DLL creator');
1991 sub prepareWin32DllLink
1993 local($linking_main) = @_;
1996 # Win32 DLLs - link with import libraries, not the real archives.
1998 if ( $TargetPlatform =~ /-mingw32$/ ) {
2001 # If the libraries have the form libHSfoo.a, we
2002 # transform that into libHSfoo_imp.a - the import
2003 # library of the DLL.
2005 foreach $a ( @SysLibrary ) {
2006 $a = "${a}_imp" if ($a =~ /^-lHS/);
2008 foreach $a ( @UserLibrary ) {
2009 $a = "${a}_imp" if ($a =~ /^-lHS/);
2011 push(@Link_file, ( $INSTALLING ) ? "$InstLibDirGhc/Main.dll_o"
2012 : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/Main.dll_o") if $linking_main;
2013 push(@Link_file, ( $INSTALLING ) ? "$InstLibDirGhc/PrelMain.dll_o"
2014 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std/PrelMain.dll_o") if $linking_main;
2016 push(@Ld_flags, "-mno-cygwin");
2022 %************************************************************************
2024 \section[Driver-misc-utils]{Miscellaneous utilities}
2026 %************************************************************************
2028 %************************************************************************
2030 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
2032 %************************************************************************
2036 local($ofile,$def_suffix) = @_;
2038 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
2042 local($orig_file, $def_suffix) = @_;
2043 if ($Specific_output_dir eq '') { # do nothing
2044 &osuf_ify($orig_file, $def_suffix);
2046 local ($orig_file_only);
2047 ($orig_file_only = $orig_file) =~ s|.*/||;
2048 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
2055 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
2057 local($includes) = '-I' . join(' -I', @Include_dir);
2060 local($c_flags) = "@CcBoth_flags";
2061 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2063 $c_flags .= " -mno-cygwin" if ( $TargetPlatform =~ /-mingw32$/ );
2065 # "input" files to use that are not in some weird directory;
2066 # to help C compilers grok .hc files [ToDo: de-hackify]
2067 local($cc_help) = "ghc$$.c";
2068 local($cc_help_s) = "ghc$$.s";
2071 $s_output = (($is_hc_file && $DoAsmMangling) || $TargetPlatform =~ /^(powerpc|rs6000|hppa)/) ? $cc_as_o : $cc_as;
2072 $c_flags .= " @CcRegd_flags";
2073 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2075 # C compiler won't like the .hc extension. So we create
2076 # a tmp .c file which #include's the needful.
2077 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2078 if ( $is_hc_file ) {
2082 # user may have asked for #includes to be injected...
2083 print TMP @CcInjects if $#CcInjects >= 0;
2085 # Straight .c files may want to know that they're being used
2086 # with a particular version of GHC, so we define __GLASGOW_HASKELL__ for their benefit.
2087 print TMP "#define __GLASGOW_HASKELL__ ${ProjectVersionInt}\n";
2089 # heave in the consistency info
2090 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2092 print TMP "#include \"$hsc_out\"\n";
2093 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2095 # Don't redirect stderr into intermediate file if slamming output onto stdout (e.g., with -E)
2096 local($fuse_stderr) = "2>&1" if ! $Only_preprocess_hc;
2097 local($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 )";
2099 if ( $Only_preprocess_hc ) { # HACK ALERT!
2100 $to_do =~ s/ -S\b//g;
2102 push(@Files_to_tidy, $cc_help, $cc_help_s, $s_output );
2103 $PostprocessCcOutput = 1 if ! $Only_preprocess_hc; # hack, dear hack...
2104 &run_something($to_do, 'C compiler');
2105 $PostprocessCcOutput = 0;
2106 if ( $Only_preprocess_hc ) {
2107 system("$Cat $Tmp_prefix.ccout");
2109 unlink($cc_help, $cc_help_s);
2115 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2117 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2119 if ($is_hc_file && $DoAsmMangling) {
2120 # dynamically load assembler-fiddling code, which we are about to use:
2121 require('ghc-asm.prl')
2122 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2123 # post-process the assembler [.hc files only]
2124 &mangle_asm($cc_as_o, $cc_as);
2126 } elsif ($TargetPlatform =~ /^hppa/) {
2127 # minor mangling of non-threaded files for hp-pa only
2128 require('ghc-asm.prl')
2129 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2130 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2132 } elsif ($TargetPlatform =~ /^powerpc|^rs6000/) {
2133 # minor mangling of non-threaded files for powerpcs and rs6000s
2134 require('ghc-asm.prl')
2135 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-powerpc.prl!\n");
2136 &mini_mangle_asm_powerpc($cc_as_o, $cc_as);
2139 # save a copy of the .s file, even if we are carrying on...
2140 #if ($do_as && $Keep_s_file_too) {
2141 # &saveIntermediate($ifile_root , "s" , $cc_as);
2148 local($as_out, $ifile_root) = @_;
2150 local($asmblr) = ( $As ) ? $As : $CcRegd;
2152 # need to add the -I flags in case the file is going through cpp (.S files)
2153 local($includes) = '-I' . join(' -I', @Include_dir);
2155 if ( ! $SplitObjFiles ) {
2156 local($to_do) = "$asmblr -o $as_out -c @As_flags $includes $cc_as";
2157 push(@Files_to_tidy, $as_out );
2158 &run_something($to_do, 'Unix assembler');
2160 } else { # more complicated split-ification...
2162 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2164 # If -odir is used, great, just pin it in front of the
2165 # generated split file names. If it hasn't been set, we
2166 # snatch it from the ifile_root.
2170 if ( $Specific_output_dir eq '' ) {
2171 $Specific_output_dir = ${ifile_root};
2174 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2175 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2176 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2177 push(@Files_to_tidy, $split_out );
2179 &run_something($to_do, 'Unix assembler');
2185 %************************************************************************
2187 \subsection[Driver-run-something]{@run_something@: Run a phase}
2189 %************************************************************************
2193 local($str_to_do, $tidy_name) = @_;
2195 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2196 print STDERR "$str_to_do\n" if $Verbose;
2198 if ($Using_dump_file) {
2199 open(DUMP, ">> $Specific_dump_file")
2200 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2201 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2203 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2206 local($return_val) = 0;
2208 if ( length($str_to_do) > 4000) {
2209 # 4000 - on the random side, just like the *real* ARG_MAX
2212 # With some shells, command lines of this length may
2213 # very well cause trouble. To safeguard against this, we squirrel the
2214 # command into a file and exec that.
2215 local ($sh) = $ENV{'REAL_SHELL'};
2216 print STDERR "Backup plan A: saving cmd line in ${Tmp_prefix}.sh and executing that with $sh\n" if $Verbose;
2217 open (TEMP, "> ${Tmp_prefix}.sh") ||
2218 &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.sh'\n");
2219 print TEMP "$Time $str_to_do\n";
2221 &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.sh'\n");
2222 system("$sh $Tmp_prefix.sh");
2225 unlink "${Tmp_prefix}.sh";
2227 system("$Time $str_to_do");
2231 if ( $PostprocessCcOutput ) { # hack, continued
2232 open(CCOUT, "< $Tmp_prefix.ccout")
2233 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2235 next if /call-clobbered/;
2236 next if /control reaches end/;
2237 next if /from .*Stg\.h:/;
2238 next if /from ghc\d+.c:\d+:/;
2239 next if /: At top level:$/;
2240 next if /: In function \`.*\':$/;
2241 next if /\`ghc_cc_ID\' defined but not used/;
2244 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2247 if ($return_val != 0) {
2248 if ($Using_dump_file) {
2249 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2251 &tidy_up_and_die($return_val, '');
2253 $Using_dump_file = 0;
2257 %************************************************************************
2259 \subsection[Driver-ghc-timing]{Emit nofibbish GHC timings}
2261 %************************************************************************
2263 NB: nearly the same as in @runstdtest@ script.
2266 sub process_ghc_timings {
2267 local($StatsFile) = "$Tmp_prefix.stat";
2268 local($SysSpecificTiming) = 'ghc';
2270 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2271 local($max_live) = 0;
2272 local($tot_live) = 0; # for calculating residency stuff
2273 local($tot_samples) = 0;
2276 if (! /Gen:\s+0/ && ! /Minor/ && /^\s*\d+\s+\d+\s+(\d+)\s+\d+\.\d+/ ) {
2277 $max_live = $1 if $max_live < $1;
2281 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2283 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2284 $MaxResidency = $1; $ResidencySamples = $2;
2287 $GCs = $1 if /^\s*([0-9,]+) (collections? in generation 0|garbage collections? performed)/;
2289 if ( /^\s+([0-9]+)\s+Mb total memory/ ) {
2293 # The presence of -? in the following pattern is only there to
2294 # accommodate 0.29 && <= 2.05 RTS'
2295 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*-?(\d+\.\d\d)s elapsed\)/ ) {
2296 $InitTime = $1; $InitElapsed = $2;
2297 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2298 $MutTime = $1; $MutElapsed = $2;
2299 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2300 $GcTime = $1; $GcElapsed = $2;
2303 close(STATS) || die "Failed when closing $StatsFile\n";
2304 if ( $tot_samples > 0 ) {
2305 $ResidencySamples = $tot_samples;
2306 $MaxResidency = $max_live;
2307 $AvgResidency = int ($tot_live / $tot_samples) ;
2310 # warn about what we didn't find
2311 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2312 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2313 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2314 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2315 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2316 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2317 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2318 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2320 # things we didn't necessarily expect to find
2321 $MaxResidency = 0 unless defined($MaxResidency);
2322 $AvgResidency = 0 unless defined($AvgResidency);
2323 $ResidencySamples = 0 unless defined($ResidencySamples);
2326 $BytesAlloc =~ s/,//g;
2327 $MaxResidency =~ s/,//g;
2329 $InitTime =~ s/,//g;
2330 $InitElapsed =~ s/,//g;
2332 $MutElapsed =~ s/,//g;
2334 $GcElapsed =~ s/,//g;
2336 # print out what we found
2337 print STDERR "<<$SysSpecificTiming: ",
2338 "$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)",
2339 " :$SysSpecificTiming>>\n";
2346 %************************************************************************
2348 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2350 %************************************************************************
2354 local($to_do) = "\n$Rm $Tmp_prefix*";
2355 if ( $Tmp_prefix !~ /^\s*$/ ) {
2356 print STDERR "$to_do\n" if $Verbose;
2361 sub tidy_up_and_die {
2362 local($return_val, $msg) = @_;
2364 # delete any files to tidy
2365 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2366 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2370 exit (($return_val == 0) ? 0 : 1);
2374 %************************************************************************
2376 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2378 %************************************************************************
2380 Some command-line arguments take an argument, e.g.,
2381 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2382 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2383 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2385 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2386 gobble the second argument (and probably set the heapsize to something
2390 local(*Args, $option, $rest_of_arg) = @_;
2392 if ($rest_of_arg ne '') {
2393 return($rest_of_arg);
2394 } elsif ($#Args >= 0) {
2395 local($temp) = $Args[0]; shift(@Args);
2398 print STDERR "$Pgm: no argument following $option option\n";
2409 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2411 foreach $f ( @HsC_antiflags ) {
2412 return(0) if $flag eq $f;
2414 # foreach $f ( @HsC_flags ) {
2415 # return(0) if $flag eq $f;
2420 sub squashHscFlag { # pretty terrible
2424 foreach $f ( @HsC_flags ) {
2425 if ($flag eq $f) { $f = ''; }
2433 foreach $f ( @flags ) {
2434 push( @HsC_flags, $f ) if &isntAntiFlag($f);
2439 To add another system library, you'll need to augment the
2440 Supported_syslibs variable with name and info on your addition
2441 to the syslib family. The info bit consist of the following:
2443 - interface file directory
2444 see the misc or posix entry for how to distinguish
2445 between using installed and build tree directories.
2447 - directory location of archives
2449 - location of (way-independent) C support libs.
2450 not all libraries need this - if you don't, just
2451 give the empty string.
2452 - list of syslibs you depend on.
2454 - additional ghc command line flags that should be used.
2455 - additional C compiler command line flags that should be used.
2461 # Hash to keep track of
2462 %Syslibs_added = ();
2465 local($syslib) = @_;
2467 # Lifting this out of this sub brings it out of scope - why??
2468 %Supported_syslibs =
2470 [ # where to slurp interface files from
2472 ? "$InstLibDirGhc/imports/exts"
2473 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/exts"
2475 , # where to find the archive to use when linking
2478 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/exts"
2481 , '' # Syslib dependencies
2482 , '' # extra ghc opts
2483 , '' # extra cc opts
2484 , '' # extra ld opts
2488 [ # where to slurp interface files from
2490 ? "$InstLibDirGhc/imports/misc"
2491 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc"
2493 , # where to find the archive to use when linking
2496 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc"
2498 , # where to find the cbits archive to use when linking
2501 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc/cbits"
2503 , 'exts concurrent' # Syslib dependencies
2504 , '' # extra ghc opts
2505 , '' # extra cc opts
2506 , ( $TargetPlatform =~ /-solaris2$/ ? '-lnsl -lsocket' : '')
2509 [ # where to slurp interface files from
2511 ? "$InstLibDirGhc/imports/hbc"
2512 : "$TopPwd/CONTRIB/libraries/hbc/src"
2514 , # where to find the archive to use when linking
2517 : "$TopPwd/CONTRIB/libraries/src/hbc"
2519 , # where to find the cbits archive to use when linking
2522 : "$TopPwd/CONTRIB/libraries/hbc/cbits"
2524 , 'exts' # Syslib dependencies
2525 , '' # extra ghc opts
2526 , '' # extra cc opts
2530 [ # where to slurp interface files from
2532 ? "$InstLibDirGhc/imports/posix"
2533 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix"
2535 , # where to find the archive to use when linking
2538 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix"
2540 , # where to find the cbits archive to use when linking
2543 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix/cbits"
2545 , 'misc' # Syslib dependencies
2546 , '' # extra ghc opts
2547 , '' # extra cc opts
2548 , '' # extra ld opts
2551 [ # where to slurp interface files from
2553 ? "$InstLibDirGhc/imports/concurrent"
2554 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent"
2556 , # where to find the archive to use when linking
2559 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent"
2561 , '' # where to find the cbits archive to use when linking
2562 , '' # Syslib dependencies
2563 , '' # extra ghc opts
2564 , '' # extra cc opts
2565 , '' # extra ld opts
2568 [ # where to slurp interface files from
2570 ? "$InstLibDirGhc/imports/win32"
2571 : "$TopPwd/hslibs/win32/src"
2573 , # where to find the archive to use when linking
2576 : "$TopPwd/hslibs/win32/src"
2579 , 'exts' # Syslib dependencies
2580 , '' # extra ghc opts
2581 , '' # extra cc opts
2582 , '-luser32 -lgdi32' # extra ld opts
2585 [ # where to slurp interface files from
2587 ? "$InstLibDirGhc/imports/com"
2588 : "$TopPwd/hdirect/lib"
2590 , # where to find the archive to use when linking
2593 : "$TopPwd/hdirect/lib"
2596 , 'exts' # Syslib dependencies
2597 , '' # extra ghc opts
2598 , '' # extra cc opts
2599 , '-luser32 -lole32 -loleaut32 -ladvapi32'
2604 # check if it's supported..
2606 if ( !exists $Supported_syslibs{$syslib} ) {
2607 print STDERR "$Pgm: no such system library (-syslib): $syslib\n";
2612 # This check is here to avoid syslib loops from
2613 # spoiling the party. A side-effect of it is that
2614 # it disallows multiple mentions of a syslib on a command-line,
2615 # explicit *and* implicit ones (i.e., "-syslib exts -syslib misc"
2616 # is not equal to "-syslib exts -syslib misc -syslib exts",
2617 # which it needs to be)
2619 # Since our current collection of syslibs don't have any
2620 # loops, this test is disabled.
2622 # ToDo: loop avoidance scheme when the need arises
2624 #return if ( exists $Syslibs_added{$syslib} );
2626 $Syslibs_added{$syslib} = 1;
2628 local ($hi_dir, $lib_dir, $lib_cbits_dir,
2629 $syslib_deps, $syslib_ghc_opts,
2630 $syslib_cc_opts, $syslib_ld_opts) = @{ $Supported_syslibs{$syslib} };
2633 unshift(@SysImport_dir, $hi_dir);
2634 push(@SysLibrary_dir, $lib_dir);
2635 push(@SysLibrary_dir, $lib_cbits_dir) if ( $lib_cbits_dir ne '');
2637 push(@SysLibrary, "-lHS$syslib");
2638 push(@SysLibrary, "-lHS${syslib}_cbits") if ( $lib_cbits_dir ne '');
2639 push(@SysLibrary, $syslib_ld_opts) if ($syslib_ld_opts ne '');
2641 # Add on any extra dependencies.
2642 foreach $lib (split(' ',$syslib_deps)) {
2648 Source files may have {-# OPTIONS ... #-} pragmas at the top, containing
2649 command line options we want to append to collection of commands specified
2650 directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell
2651 file for any such pragmas:
2654 sub check_for_source_options {
2655 local($file,$ifile) = @_;
2656 local($comment_start,$comment_end);
2658 if ($ifile =~ /\.hc$/ ||
2661 $ifile =~ /_s$/ ) { # `Real' C intermediate
2662 $comment_start = "/\\*";
2663 $comment_end = "\\*/";
2664 } else { # Assume it is a file containing Haskell source
2665 $comment_start = "{-#";
2666 $comment_end = "#-}";
2669 open(FILE,$file) || return(1); # No big loss
2672 if ( /^${comment_start} OPTIONS (.*)${comment_end}/ ) {
2673 # add the options found at the back of the command line.
2674 local(@entries) = split(/\s+/,$1);
2675 print STDERR "Found OPTIONS " . join(' ',@entries) . " in $file\n" if $Verbose;
2676 push(@File_options, @entries);
2678 elsif ( /^$/ ) { # ignore empty lines
2681 elsif ( /^#line.+$/ ) { # ignore comment lines (unused..ToDo: rm )
2684 elsif ( /^{-# LINE.+$/ ) { # ignore line pragmas
2687 else { # stop looking, something non-empty / not
2688 # ${comment_start} OPTIONS .. ${comment_end} encountered.
2689 close(FILE);return(0);
2698 We split the initial argv up into three arrays:
2704 the reason for doing so is to be able to deal
2705 with {-# OPTIONS #-} pragma in source files properly.
2711 arg: while($_ = $args[0]) {
2713 # sigh, we have to deal with these -option arg specially here.
2714 /^-(tmpdir|odir|ohi|o|isuf|osuf|hisuf|odump|syslib)$/ &&
2715 do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; };
2716 /^--?./ && do { push(@Cmd_opts, $_); next arg; };
2718 if (/\.([^_]+_)?[oa]$/) {
2719 push(@Link_file, $_);
2721 push(@Input_file, $_);
2724 # input files must exist:
2726 print STDERR "$Pgm: input file doesn't exist: $_\n";
2734 When saving an intermediate file (.hc or .s) away, we
2735 have to prefix any OPTIONS found in the original source file.
2738 sub saveIntermediate {
2739 local ($final,$suffix,$tmp)= @_ ;
2742 # $final -- root of where to park ${final}.${suffix}
2743 # $tmp -- temporary file where hsc put the intermediate file.
2745 # Delete the old file
2746 $to_do = "$Rm ${final}.${suffix}"; &run_something($to_do, "Removing old .${suffix} file");
2748 if ( $#File_options >= 0 ) { # OPTIONS found in Haskell source unit
2749 # Add OPTION comment to the top of the generated .${suffix} file
2750 open(TEMP, "> ${final}.${suffix}") || &tidy_up_and_die(1,"Can't open ${final}.${suffix}\n");
2751 print TEMP "/* OPTIONS " . join(' ',@File_options) . " */\n";
2753 print STDERR "Prepending OPTIONS: " . join(' ',@File_options) . " to ${final}.${suffix}\n" if $Verbose;
2755 $to_do = "$Cat $tmp >> ${final}.${suffix}";
2756 &run_something($to_do, "Saving copy of .${suffix} file");
2763 Command-line processor
2769 # can't use getopt(s); what we want is too complicated
2771 arg: while($_ = $Args[0]) {
2774 #---------- help -------------------------------------------------------
2775 if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; }
2777 #-----------version ----------------------------------------------------
2778 /^--version$/ && do { print STDERR "${ProjectName}, version ${ProjectVersion}, patchlevel ${ProjectPatchLevel}\n"; exit $Status; };
2780 #---------- verbosity and such -----------------------------------------
2781 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
2783 #---------- what phases are to be run ----------------------------------
2784 /^-(no-)?recomp/ && do { $Do_recomp_chkr = ($1 eq '') ? 1 : 0; next arg; };
2786 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
2787 # change the global default:
2788 # we won't run cat; we'll run the real thing
2790 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
2792 # stop after generating C
2794 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
2795 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
2797 # leave out actual C generation (debugging) [also turns off interface gen]
2800 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
2801 # _do_ generate an interface; usually used as: -noC -hi
2802 /^-hi-with-(.*)$/ && do { $HiOnStdout = 1; $HiWith .= " $1" ; $ProduceHi = '-hifile='; next arg; };
2803 # limit ourselves to outputting a particular section.
2805 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
2806 # don't generate an interface (even if generating C)
2808 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
2809 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
2810 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
2811 /^-keep-hi-diffs$/ && do { $Keep_HiDiffs = 1; next arg; };
2813 # show/disable diffs if the interface file changes
2815 /^-E$/ && do { push(@CcBoth_flags, '-E');
2816 $Only_preprocess_C = 1;
2817 $Do_as = 0; $Do_lnkr = 0; next arg; };
2818 # stop after preprocessing C
2819 /^-M$/ && do { $Only_generate_deps = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2820 # only generate dependency information.
2821 /^--mk-dll$/ && do { $Only_generate_dll = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2822 # Build a Win32 DLL (where supported).
2823 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
2824 # stop after generating assembler
2826 /^-c$/ && do { $Do_lnkr = 0; next arg; };
2827 # stop after generating .o files
2829 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
2830 # don't do consistency-checking after a link
2831 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
2833 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', '');
2834 $Tmp_prefix = "$Tmp_prefix/ghc$$";
2835 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
2837 # use an alternate directory for temp files
2839 #---------- redirect output --------------------------------------------
2841 # -o <file>; applies to the last phase, whatever it is
2842 # "-o -" sends it to stdout
2843 # if <file> has a directory component, that dir must already exist
2845 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', '');
2847 # Hack, of the worst sort: don't do validation of
2848 # odir argument if you're using -M (dependency generation).
2850 if ( ! $Only_generate_deps && ! -d $Specific_output_dir) {
2851 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
2856 /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', '');
2857 if ($Specific_output_file ne '-'
2858 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
2859 local($dir_part) = $1;
2860 if (! -d $dir_part) {
2861 print STDERR "$Pgm: no such directory: $dir_part\n";
2867 # NB: -isuf not documented yet (because it doesn't work yet)
2868 /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', '');
2869 if ($Isuffix =~ /\./ ) {
2870 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
2875 /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', '');
2876 if ($Osuffix =~ /\./ ) {
2877 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
2882 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
2883 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', '');
2884 if ($Specific_hi_file ne '-'
2885 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
2886 local($dir_part) = $1;
2887 if (! -d $dir_part) {
2888 print STDERR "$Pgm: no such directory: $dir_part\n";
2892 $ProduceHi='-hifile=';
2895 # The suffix to use when looking for interface files
2896 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', '');
2897 if ($HiSuffix =~ /\./ ) {
2898 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
2902 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', '');
2903 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
2904 local($dir_part) = $1;
2905 if (! -d $dir_part) {
2906 print STDERR "$Pgm: no such directory: $dir_part\n";
2912 #-------------- scc & Profiling Stuff ----------------------------------
2914 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
2916 /^-auto-dicts$/ && do {
2917 $PROFdicts = '-fauto-sccs-on-dicts';
2919 /^-auto-all$/ && do {
2920 $PROFauto = '-fauto-sccs-on-all-toplevs';
2923 $PROFauto = '-fauto-sccs-on-exported-toplevs';
2926 /^-caf-all/ && do { # generate individual CAF SCC annotations
2927 $PROFcaf = '-fauto-sccs-on-individual-cafs';
2930 /^-ignore-scc$/ && do {
2931 # forces ignore of scc annotations even if profiling
2932 $PROFignore_scc = '-W';
2935 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
2938 /^-unprof-scc-auto/ && do {
2939 # generate auto SCCs on top level bindings when not profiling.
2940 # Used to measure optimisation effects of presence of sccs.
2941 $UNPROFscc_auto = ( /-all/ )
2942 ? '-fauto-sccs-on-all-toplevs'
2943 : '-fauto-sccs-on-exported-toplevs';
2946 #--------- ticky/parallel ----------------------------------------------
2947 # we sort out the details a bit later on
2949 /^-gransim$/ && do { $GRANing = 'g'; &add_syslib('concurrent'); next arg; }; # GranSim
2950 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
2951 /^-parallel$/ && do { $PARing = 'p'; &add_syslib('concurrent'); next arg; }; # parallel Haskell
2953 #-------------- "user ways" --------------------------------------------
2955 (/^-user-setup-([a-oA-Z])$/ ) &&
2957 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
2959 local($stuff) = $UserSetupOpts{$BuildTag};
2960 local(@opts) = split(/\s+/, $stuff);
2962 # feed relevant ops into the arg-processing loop (if any)
2963 unshift(@Args, @opts) if $#opts >= 0;
2967 #---------- set search paths for libraries and things ------------------
2969 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
2970 # prepends the items to the list); -I is for including C .h files.
2972 /^-i$/ && do { @Import_dir = (); # import path cleared!
2973 @SysImport_dir = ();
2974 print STDERR "WARNING: import paths cleared by `-i'\n";
2977 /^-i(.*)/ && do { local(@new_items);
2981 if ( $arg =~ /;/ ) {
2983 @new_items = split( /;/, &grab_arg_arg(*Args,'-i', $arg));
2985 @new_items = split( /:/, &grab_arg_arg(*Args,'-i', $arg));
2987 unshift(@Import_dir, @new_items);
2990 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; };
2991 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; };
2992 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; };
2994 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1);
2995 &add_syslib($syslib);
2998 #=======================================================================
2999 # various flags that we can harmlessly send to one program or another
3000 # (we will later "reclaim" some of the compiler ones now sent to gcc)
3001 #=======================================================================
3003 #---------- this driver itself (ghc) -----------------------------------
3004 # these change what executable is run for each phase:
3005 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
3006 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
3007 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
3008 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
3009 /^-pgma(.*)$/ && do { $As = $1; next arg; };
3010 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
3011 /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; };
3013 #---------- the get-anything-through opts (all pgms) -------------------
3014 # these allow arbitrary option-strings to go to any phase:
3015 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
3016 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
3017 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
3018 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
3019 /^-optcpp(.*)$/ && do { push(@Cpp_define, $1); $Only_preprocess_hc = ($1 eq "-E"); next arg; };
3020 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
3021 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
3022 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
3023 /^-optdll(.*)$/ && do { push(@Dll_flags, $1); next arg; };
3024 /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; };
3026 #---------- Haskell C pre-processor (hscpp) ----------------------------
3027 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; };
3028 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; };
3030 #---------- post-Haskell "assembler"------------------------------------
3031 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
3032 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
3034 #---------- Haskell compiler (hsc) -------------------------------------
3036 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
3037 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
3039 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
3040 /^-fignore-asserts$/ && do { push(@HsC_flags, $_); next arg; };
3042 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
3045 # have the compiler proper generate concurrent code,
3046 # really only used when you want to configure your own
3047 # special user compilation way.
3049 # (ditto for -fgransim, fscc-profiling, -fparallel and -fticky-ticky)
3051 /^-fscc-profiling$/ && do { push(@HsC_flags,$_); next arg; };
3052 /^-fticky-ticky$/ && do { push(@HsC_flags,$_); next arg; };
3053 /^-fgransim$/ && do { push(@HsC_flags,$_); next arg; };
3054 /^-fparallel$/ && do { push(@HsC_flags,$_); next arg; };
3056 /^-split-objs$/ && do {
3057 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|rs6000|sparc)-/ ) {
3059 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
3064 push(@HsC_flags, "-fglobalise-toplev-names");
3065 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
3067 require('ghc-split.prl')
3068 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
3072 /^-unreg$/ && do { $UNREGing = 'u'; next arg; };
3073 /^-funregisterised$/ && do { push(@HsC_flags, $_); next arg; };
3074 /^-fno-asm-mangling$/ && do { $DoAsmMangling = 0; next arg; };
3076 /^-fallow-overlapping-instances$/ && do { push(@HsC_flags, $_); next arg; };
3077 /^-fallow-undecidable-instances$/ && do { push(@HsC_flags, $_); next arg; };
3078 /^-fhistory-size.*$/ && do { push(@HsC_flags, $_); next arg; };
3079 /^-fdicts-strict$/ && do { push(@HsC_flags, $_); next arg; };
3081 && do { push(@HsC_flags, $_);
3083 # -fglasgow-exts implies -syslib exts
3084 &add_syslib('exts');
3089 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
3090 /^-fno-speciali[sz]e$/
3091 && do { $Oopt_DoSpecialise = ''; next arg; };
3094 && do { $Oopt_UsageSPInf = '-fusagesp';
3095 push (@HsC_flags, '-fusagesp-on'); next arg; };
3097 /^-fcompiling-prelude$/ && do { $CompilingPrelude=1; push(@HsC_flags, $_); next arg; };
3099 # Now the foldr/build options, which are *on* by default (for -O).
3102 && do { $Oopt_FoldrBuild = 1;
3106 /^-fno-foldr-build$/
3107 && do { $Oopt_FoldrBuild = 0;
3110 # --------------- Renamer -------------
3113 /^-fno-prune-tydecls$/ && do { push(@HsC_flags, $_); next arg; };
3114 /^-fno-prune-instdecls$/ && do { push(@HsC_flags, $_); next arg; };
3118 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
3119 /^-fvia-[cC]$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
3124 && do { push(@HsC_flags, $_); next arg };
3126 /^-funfold-casms-in-hi-file$/
3127 && do { push(@HsC_flags, $_); next arg };
3129 /^(-fmax-simplifier-iterations)(.*)$/
3130 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2);
3133 /^-fno-pedantic-bottoms$/
3134 && do { $Oopt_PedanticBottoms = ''; next arg; };
3136 /^-fno-pre-inlining$/
3137 && do { push(@HsC_flags, $_); next arg };
3139 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
3140 && do { push(@HsC_flags, $_); next arg; };
3142 /^-funbox-strict-fields$/
3143 && do { push(@HsC_flags, $_); next arg; };
3145 # --------------- Warnings etc. ------
3147 /^-fwarn-(.*)$/ && do { push(@HsC_flags, $_); next arg; };
3149 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
3150 &squashHscFlag("-f$1");
3153 /^-W$/ && do { push(@HsC_flags, @MinusWOpts); next arg; };
3154 /^-Wall$/ && do { push(@HsC_flags, @MinusWallOpts); next arg; };
3155 /^(-Wnot|w)$/ && do { foreach (@Hsc_flags) {
3156 /^-fwarn-(.*)$/ && do { $_=''; };
3158 push(@HsC_antiflags, @StandardWarnings);
3161 # --------------- fun stuff ----------------
3163 /^-freport-compile$/ && do { push(@HsC_flags, $_); next arg; };
3165 # --------------- platform specific flags (for gcc mostly) ----------------
3167 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes,
3168 # for 2.6.x..?, does not apply for 2.7.2
3170 unshift(@CcBoth_flags, ( $_ ));
3173 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
3174 && do { # for GCC for SPARCs
3175 unshift(@CcBoth_flags, ( $_ ));
3178 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
3179 $StolenX86Regs = $1;
3182 #*************** ... and lots of debugging ones (form: -d* )
3184 # -d(no-)core-lint is done this way so it is turn-off-able.
3185 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
3186 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
3187 # Ditto for USP lint
3188 /^-dusagesp-lint/ && do { $USPLint = '-dusagesp-lint'; next arg; };
3189 /^-dno-usagesp-lint/ && do { $USPLint = ''; next arg; };
3190 # Ditto for STG lint
3191 /^-dstg-lint/ && do { $StgLint = '-dstg-lint'; next arg; };
3192 /^-dno-stg-lint/ && do { $StgLint = ''; next arg; };
3194 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
3195 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
3196 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
3197 /^-dshow-rn-stats/ && do { push(@HsC_flags, $_); next arg; };
3198 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
3199 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
3200 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
3201 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
3203 #*************** ... and now all these -R* ones for its runtime system...
3205 /^-Rscale-sizes?(.*)/ && do {
3206 $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1);
3209 /^(-H|-Rmax-heapsize)(.*)/ && do {
3210 local($heap_size) = &grab_arg_arg(*Args,$1, $2);
3211 if ($heap_size =~ /(\d+)[Kk]$/) {
3212 $heap_size = $1 * 1000;
3213 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
3214 $heap_size = $1 * 1000 * 1000;
3215 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
3216 $heap_size = $1 * 1000 * 1000 * 1000;
3218 if ($heap_size <= 0) {
3219 print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n";
3220 $Specific_heap_size = 0;
3222 # if several heap sizes given, take the largest...
3223 } elsif ($heap_size >= $Specific_heap_size) {
3224 $Specific_heap_size = $heap_size;
3226 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n";
3230 /^(-K|Rmax-(stk|stack)size)(.*)/ && do {
3232 local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3);
3233 if ($stk_size =~ /(\d+)[Kk]$/) {
3234 $stk_size = $1 * 1000;
3235 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
3236 $stk_size = $1 * 1000 * 1000;
3237 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
3238 $stk_size = $1 * 1000 * 1000 * 1000;
3240 if ($stk_size <= 0) {
3241 print STDERR "$Pgm: resetting stack-size to zero!!! $stk_size\n";
3242 $Specific_stk_size = 0;
3244 # if several stack sizes given, take the largest...
3245 } elsif ($stk_size >= $Specific_stk_size) {
3246 $Specific_stk_size = $stk_size;
3248 print STDERR "$Pgm: ignoring stack-size-setting option ($flag $stk_size)...not the largest seen\n";
3252 /^-Rgc-stats$/ && do { $CollectingGCstats++;
3253 # the two RTSs do this diff ways; we will try to compensate
3256 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
3258 #---------- C high-level assembler (gcc) -------------------------------
3259 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
3261 # -dgcc-lint is a useful way of making GCC very fussy.
3262 # From alan@spri.levels.unisa.edu.au (Alan Modra).
3263 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
3264 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
3265 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
3267 # inject "#include <wurble>" into the compiler's C output!
3269 /^-#include(.*)/ && do {
3270 local($to_include) = &grab_arg_arg(*Args,'-#include', $1);
3271 push(@CcInjects, "#include $to_include\n");
3274 #---------- Linker (gcc, really) ---------------------------------------
3276 /^-static$/ && do { $Static=1; push(@Ld_flags, $_); next arg; };
3277 /^-no-hs-main$/ && do { $NoHaskellMain=1; next arg; };
3279 #---------- mixed cc and linker magic ----------------------------------
3280 # this optimisation stuff is finally sorted out later on...
3282 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
3284 /^-O[1-2]?$/ && do {
3285 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
3286 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
3288 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
3291 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
3293 /^-Ofile(.*)/ && do {
3295 local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1);
3296 @HsC_minusO3_flags = ();
3298 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
3301 s/\#.*//; # death to comments
3302 s/[ \t]+//g; # death to whitespace
3303 next if /^$/; # ditto, blank lines
3304 s/([()*{}])/\\$1/g; # protect shell metacharacters
3306 push(@CcBoth_flags, $1);
3308 push(@HsC_minusO3_flags, $_);
3314 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
3315 # in the consistency info
3319 #---------- linking .a file --------------------------------------------
3321 /^-Main(.*)/ && do {
3322 # specifies main or mainPrimIO to be linked
3326 #---------- catch unrecognized flags -----------------------------------
3329 print STDERR "$Pgm: unrecognised option: $_\n";
3335 } # end of processArgs