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
103 HscMajorVersion HscMinorVersion CcMajorVersion CcMinorVersion
107 bindir libdir libexecdir datadir
111 GHC_LIB_DIR GHC_RUNTIME_DIR GHC_INCLUDE_DIR
113 GHC_OPT_HILEV_ASM GhcWithNativeCodeGen
115 GHC_UNLIT GHC_HSCPP GHC_MKDEPENDHS 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 $BuildTag = ''; # default is sequential build w/ Appel-style GC
302 %BuildDescr = (# system ways begin
303 '', 'Normal Sequential',
305 '_t', "Ticky-ticky Profiling",
306 '_u', "Unregisterised",
327 '_B', "$WAY_B_NAME" );
329 # these are options that are "fed back" through the option processing loop
333 '_a', "$WAY_a_REAL_OPTS",
334 '_b', "$WAY_b_REAL_OPTS",
335 '_c', "$WAY_c_REAL_OPTS",
336 '_d', "$WAY_d_REAL_OPTS",
337 '_e', "$WAY_e_REAL_OPTS",
338 '_f', "$WAY_f_REAL_OPTS",
339 '_g', "$WAY_g_REAL_OPTS",
340 '_h', "$WAY_h_REAL_OPTS",
341 '_i', "$WAY_i_REAL_OPTS",
342 '_j', "$WAY_j_REAL_OPTS",
343 '_k', "$WAY_k_REAL_OPTS",
344 '_l', "$WAY_l_REAL_OPTS",
345 '_m', "$WAY_m_REAL_OPTS",
346 '_n', "$WAY_n_REAL_OPTS",
347 '_o', "$WAY_o_REAL_OPTS",
348 '_A', "$WAY_A_REAL_OPTS",
349 '_B', "$WAY_B_REAL_OPTS",
352 '_p', "-fscc-profiling -DPROFILING -optc-DPROFILING",
353 '_t', "-fticky-ticky -DTICKY_TICKY -optc-DTICKY_TICKY",
354 '_u', "-optc-DNO_REGS -optc-DUSE_MINIINTERPRETER -fno-asm-mangling -funregisterised",
355 '_s', "-fparallel -optc-pthread -optl-pthread -optc-DSMP",
356 '_mp', "-fparallel -D__PARALLEL_HASKELL__ -optc-DPAR",
357 '_mg', "-fgransim -D__GRANSIM__ -optc-DGRAN");
359 # where to look for interface files (system hi's, i.e., prelude and syslibs)
360 @SysImport_dir = ( $INSTALLING )
361 ? ( "$InstLibDirGhc/imports/std" )
362 : ( "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std" );
364 # We need to look in ghc/ and glaExts/ when searching for implicitly needed .hi files, but
365 # we should really *not* look there for explicitly imported modules.
367 $Haskell1Version = 5; # i.e., Haskell 1.4
370 # Cpp symbols defined when we're processing Haskell source.
374 , "-D__HASKELL1__=$Haskell1Version"
375 , "-D__GLASGOW_HASKELL__=$ProjectVersionInt"
377 , "-D__CONCURRENT_HASKELL__"
381 @SysLibrary_dir = ( ( $INSTALLING ) #-syslib things supplied by the system
383 : ( "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR"
384 , "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/gmp"
385 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std"
386 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std/cbits"
390 # make depend for Haskell
392 = ( $INSTALLING ) ? "$InstLibExecDirGhc/mkdependHS"
393 : "$TopPwd/$CURRENT_DIR/$GHC_MKDEPENDHS";
395 @MkDependHS_flags = ();
397 # do_link flag should not be reset while rescanning the cmd-line.
399 $Specific_output_dir = ''; # set by -odir <dir>
400 $Specific_output_file = ''; # set by -o <file>; "-" for stdout
403 Function to initialise the per-compilation-unit globals that
404 are used to guide and control the invocation of the different phases.
407 sub initDriverGlobals {
409 # reset the following options:
410 # RTS flags to use while compiling
416 The optimisations/etc to be done by the compiler are {\em normally}
417 expressed with a \tr{-O} (or \tr{-O2}) flag, or by its absence.
420 $OptLevel = 0; # no -O == 0; -O == 1; -O2 == 2; -Ofile == 3
421 $MinusO2ForC = 0; # set to 1 if -O2 should be given to C compiler
422 $StolenX86Regs = 4; # **HACK*** of the very worst sort
427 # The SplitMarker is the string/character used to mark end of element
430 @Import_dir = ('.'); #-i things
431 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
433 @UserLibrary_dir= (); #-L things;...
434 @UserLibrary = (); #-l things asked for by the user
436 @SysLibrary = (); # will be built up as we go along
439 We are given a list of files with various presumably-known suffixes
440 (unknown-suffix files go straight to the linker). For each file, we
441 begin by assuming that we'll run every phase over it. However: (1)
442 global flags (\tr{-c}, \tr{-S}, etc.) tell us not to run any phase
443 past a certain point; and (2) the file's suffix tells us what phase to
444 start with. Linking is weird and kept track of separately.
446 Here are the initial defaults applied to all files:
448 $Cpp_flag_set = 0; # (hack)
449 $Only_preprocess_C = 0; # pretty hackish
450 $Only_preprocess_hc = 0; # ditto
451 $Only_generate_deps = 0; # ""
452 $Only_generate_dll = 0;
453 $PostprocessCcOutput = 0;
456 # static = 0 => produce code for DLLs (when compiling & linking.)
458 $Static = 0 if ($EnableWin32DLLs eq 'YES');
460 # native code-gen or via C?
461 $HaveNativeCodeGen = $GhcWithNativeCodeGen;
462 $HscOut = '-C='; # '-C=' ==> .hc output; '-S=' ==> .s output; '-N=' ==> neither
464 if ($HaveNativeCodeGen ne 'YES') && $TargetPlatform =~ /^(alpha)-/;
465 # TEMP: disable x86 & Sparc if $HaveNativeCodeGen && $TargetPlatform =~ /^(i386|alpha|sparc)-/;
466 $ProduceHi = '-hifile=';
472 $CollectingGCstats = 0;
473 $CollectGhcTimings = 0;
474 $DEBUGging = ''; # -DDEBUG and all that it entails (um... not really)
475 $PROFing = ''; # set to p or e if profiling
476 $PROFgroup = ''; # set to group if an explicit -Ggroup specified
477 $PROFauto = ''; # set to relevant hsc flag if -auto or -auto-all
478 $PROFcaf = ''; # set to relevant hsc flag if -caf-all
479 $PROFdict = ''; # set to relevant hsc flag if -auto-dicts
480 $PROFignore_scc = ''; # set to relevant parser flag if explicit sccs ignored
481 $UNPROFscc_auto = ''; # set to relevant hsc flag if forcing auto sccs without profiling
482 $TICKYing = ''; # set to t if compiling for ticky-ticky profiling
483 $PARing = ''; # set to p if compiling for PAR
484 $GRANing = ''; # set to g if compiling for GRAN
485 $UNREGing = ($GhcWithRegisterised eq 'YES') ? '' : 'u';
486 $Specific_hi_file = ''; # set by -ohi <file>; "-" for stdout
487 $Specific_dump_file = ''; # set by -odump <file>; "-" for stdout
488 $Using_dump_file = 0;
490 $Osuffix = ''; # default: use the normal suffix for that kind of output
492 $HiSuffix_prelude = '';
494 $Do_recomp_chkr = 0; # don't use the recompilatio checker unless asked
495 $Do_cc = -1; # a MAGIC indeterminate value; will be set to 1 or 0.
498 $Keep_hc_file_too = 0;
499 $Keep_s_file_too = 0;
500 $UseGhcInternals = 0; # if 1, may use GHC* modules
502 $DoAsmMangling = 1; # on by default, off by -fno-asm-mangling
504 $Dump_parser_output = 0;
506 $Dump_asm_splitting_info = 0;
507 $NoImplicitPrelude = 0;
508 # 1 => don't tell the linker to hoist in PrelMain.Main, as an
509 # external main is provided instead.
512 } # end of initDriverGlobals (Sigh)
514 # we split the argv passed to the driver into three:
519 # and files to be linked...
525 # cmd line options prefixing the unit we're compiling
530 We inject consistency-checking information into \tr{.hc} files (both
531 when created by the Haskell compiler and when compiled by the C
532 compiler), so that we can check that an executable is made from
533 consistently-built pieces. (The check is normally done just after
534 linking.) The checking is done by introducing/munging
535 \tr{what(1)}-style strings. Anyway, here are the relevant global
536 variables and their defaults:
538 $LinkChk = 0; # set to 0 if the link check should *not* be done
540 # major & minor version numbers; major numbers must always agree;
541 # minor disagreements yield a warning.
542 $HsC_major_version = $HscMajorVersion;
543 $HsC_minor_version = $HscMinorVersion;
544 $Cc_major_version = $CcMajorVersion;
545 $Cc_minor_version = $CcMinorVersion;
547 # options: these must always agree
548 $HsC_consist_options = ''; # we record, in this order:
549 # Build tag; debugging?
550 $Cc_consist_options = ''; # we record, in this order:
551 # Build tag; debugging?
554 %************************************************************************
556 \section[Driver-parse-argv]{Munge the command-line options}
558 %************************************************************************
560 Now slurp through the arguments.
563 &initDriverGlobals();
564 &splitCmdLine(@ARGV);
565 # Run through the cmd-line first time.
566 &processArgs(@Cmd_opts);
568 # Check to see if driver is only in the business
569 # to generate dependencies
570 if ( $Status == 0 && $Only_generate_deps ) {
572 push (@MkDependHS_flags, "-o$Osuffix") if $Osuffix;
573 push (@MkDependHS_flags, "-s$BuildTag") if $BuildTag;
574 # They're not (currently) needed, but we need to quote any -#include options
575 foreach (@Cmd_opts) {
576 s/-#include.*$/'$&'/g;
578 local($to_do) = "$MkDependHS @MkDependHS_flags @HsSourceCppOpts -- @Cmd_opts -- @Input_file" ;
579 &run_something($to_do, 'Haskell dependencies');
583 # ..or just to construct a (Haskell) DLL.
584 if ( $Status == 0 && $Only_generate_dll && $EnableWin32DLLs ) {
590 # if there are several input files,
591 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
592 # (except if linking, of course)
594 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
595 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
596 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
597 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
598 print STDERR "\tPerhaps the -odir option will do what you want.\n";
603 # check for various pathological -o and -odir combinations...
604 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
605 if ($Specific_output_file eq '-') {
606 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
608 } else { # amalgamate...
609 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
610 # ToDo: check we haven't got a junk name now...
611 $Specific_output_dir = ''; # reset
615 # crash and burn if there were errors
617 print STDERR $ShortUsage;
622 %************************************************************************
624 \section[Driver-post-argv-mangling]{Setup after reading options}
626 %************************************************************************
628 %************************************************************************
630 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
632 %************************************************************************
634 We come now to the default ``wads of options'' that are turned on by
635 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
636 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
639 The user can also specify his/her own list of options in a file; in
640 that case, the work is already done (see stuff about @minusO3@,
643 GHC allows very precise control of what happens during a compilation.
644 Core-to-Core and STG-to-STG passes can be run in any order, as many
645 times as you like. Individual transformations can be turned on or
648 Sadly, however, there are some interdependencies \& Things You Must
649 Not Do. Here is the list.
653 \item[\tr{-fspecialise}:]
654 The specialiser must have dependency-analysed input; but if you run
655 the simplifier to do this, you must not let it toss away unused
656 bindings! (The typechecker conveys some specialisation info via
657 ``unused'' bindings...)
659 \item[\tr{-ffloat-inwards}:]
660 Floating inwards should be done before strictness analysis, because
661 the latter will give better results.
663 \item[\tr{-fstatic-args}:]
664 The static-arguments-transformation pass {\em must} have the
665 simplifier run right after it.
667 \item[\tr{-fcalc-inlinings[12]}:]
668 Not required, but there may be slight gains by re-simplifying after
669 this is done. (You could then \tr{-fcalc-inlinings} again, just for
672 \item[\tr{-ffull-laziness}:]
673 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
674 that's run. (Um, well, howzabout the simplifier just once more...)
679 \item[\tr{-fupdate-analysis}:]
680 It really really wants to be the last STG-to-STG pass that is run.
685 sub setupOptimiseFlags {
687 # this pass-ordering sequence was agreed by Simon and Andr\'e
688 # (WDP 94/07, 94/11).
695 $Oopt_MaxSimplifierIterations,
699 $Oopt_FinalStgProfilingMassage
702 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
706 '-fdo-eta-reduction',
707 '-fdo-lambda-eta-expansion',
711 $Oopt_PedanticBottoms,
713 # initial simplify: mk specialiser happy: minimum effort please
717 '-finline-phase0', # Don't inline anything till full laziness has bitten
718 # In particular, inlining wrappers inhibits floating
719 # e.g. ...(case f x of ...)...
720 # ==> ...(case (case x of I# x# -> fw x#) of ...)...
721 # ==> ...(case x of I# x# -> case fw x# of ...)...
722 # and now the redex (f x) isn't floatable any more
723 '-fmax-simplifier-iterations2',
726 # Specialisation is best done before full laziness
727 # so that overloaded functions have all their dictionary lambdas manifest
728 ($Oopt_DoSpecialise) ? ( $Oopt_DoSpecialise, ) : (),
734 # # Run the simplifier before specialising, so that overloaded functions
735 # # look like f = \d -> ...
736 # # (Full laziness may lift out something hiding the \d
738 # '-fmax-simplifier-iterations1',
745 # Want to run with inline phase 1 after the specialiser to give
746 # maximum chance for fusion to work before we inline build/augment
747 # in phase 2. This made a difference in 'ansi' where an overloaded
748 # function wasn't inlined till too late.
749 $Oopt_MaxSimplifierIterations,
752 $Oopt_UsageSPInf, # infer usage information here in case we need it later.
753 # (add more of these where you need them --KSW 1999-04)
757 # Need inline-phase2 here so that build/augment get
758 # inlined. I found that spectral/hartel/genfft lost some useful
759 # strictness in the function sumcode' if augment is not inlined
760 # before strictness analysis runs
763 $Oopt_MaxSimplifierIterations,
773 $Oopt_MaxSimplifierIterations,
774 # No -finline-phase: allow all Ids to be inlined now
777 '-fcse', # CSE must immediately follow a simplification pass, because it relies
778 # on the no-shadowing invariant. See comments at the top of CSE.lhs
780 '-ffull-laziness', # nofib/spectral/hartel/wang doubles in speed if you
781 # do full laziness late in the day. It only happens
782 # after fusion and other stuff, so the early pass doesn't
783 # catch it. For the record, the redex is
784 # f_el22 (f_el21 r_midblock)
787 # Case-liberation for -O2. This should be after
788 # strictness analysis and the simplification which follows it.
792 # : "-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 ]" ),
794 # Final clean-up simplification:
798 $Oopt_MaxSimplifierIterations,
799 # No -finline-phase: allow all Ids to be inlined now
806 $Oopt_FinalStgProfilingMassage,
812 # SPECIAL FLAGS for -O2
814 '-fupdate-analysis', # virtually useless; relegated to -O2
821 Sort out what we're going to do about optimising. First, the @hsc@
822 flags and regular @cc@ flags to worry about:
824 if ( $OptLevel <= 0 ) {
826 # for this level, we tell the parser -fignore-interface-pragmas
827 push(@HsC_flags, '-fignore-interface-pragmas');
828 # and tell the compiler not to produce them
829 push(@HsC_flags, '-fomit-interface-pragmas');
831 &add_Hsc_flags( @HsC_minusNoO_flags );
832 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
834 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
836 &add_Hsc_flags( @HsC_minusO_flags );
837 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
838 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
839 # but it *is* useful in compiling the garbage collector.
841 } else { # -Ofile, then...
843 &add_Hsc_flags( @HsC_minusO3_flags );
844 push(@HsC_flags, $Oopt_FinalStgProfilingMassage) if $Oopt_FinalStgProfilingMassage;
846 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
849 } # setupOptimiseFlags
853 %************************************************************************
855 \subsection{Check for consistency, etc.}
857 %************************************************************************
859 Sort out @$BuildTag@, @$PROFing@, @$PARing@,
860 @$GRANing@, @$TICKYing@, @UNREGing@:
862 sub setupBuildFlags {
865 # PROFILING stuff after argv mangling:
867 # add -auto sccs even if not profiling !
868 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
871 push(@HsC_flags, $PROFauto) if $PROFauto;
872 push(@HsC_flags, $PROFcaf) if $PROFcaf;
873 push(@HsC_flags, $PROFdict) if $PROFdict;
875 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
877 # Ignore user sccs when auto annotating, but warn when doing so.
878 $PROFignore_scc = '-W' if $PROFauto;
880 #if ( $BuildTag ne '' ) {
881 # local($b) = $BuildDescr{$BuildTag};
882 # if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
883 # if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
884 # if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
886 # # ok to have a user-way profiling build
887 # # eval the profiling opts ... but leave user-way BuildTag
888 # if ($PROFing eq 'p') { &processArgs(split(' ', $SetupOpts{'_p'})); } # eval($EvaldSetupOpts{'_p'}); }
890 if ( $PROFing eq 'p' ) {
891 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
892 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
893 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
896 } elsif ( $PARing eq 'p' ) {
897 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
898 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
901 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
902 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
906 } elsif ( $SMPing eq 's') {
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}\n" if $Verbose;
1234 %************************************************************************
1236 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1238 %************************************************************************
1240 Process the input files; don't continue with linking if there are
1241 problems (global variable @$Status@ non-zero).
1243 foreach $ifile (@Input_file) {
1244 &ProcessInputFile($ifile);
1247 # don't link if there were errors...
1248 if ( $Status > 0 ) {
1249 print STDERR $ShortUsage;
1254 # Link if appropriate.
1255 &runLinker() if $Do_lnkr;
1257 # that... that's all, folks!
1259 exit $Status; # will still be 0 if all went well
1262 %************************************************************************
1264 \section[Driver-do-one-file]{How to process a single input file}
1266 %************************************************************************
1269 sub ProcessInputFile {
1270 local($ifile) = @_; # input file name
1271 local($ifile_root); # root of or basename of input file
1272 local($ofile_target); # ultimate output file we hope to produce
1273 # from input file (need to know for recomp
1274 # checking purposes)
1275 local($hifile_target);# ditto (but .hi file)
1276 local($ofile_c_stub_target);
1277 local($ofile_h_stub_target);
1280 Handle the weirdity of input from stdin.
1282 if ($ifile ne '-') {
1283 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1284 $ofile_target = # may be reset later...
1285 ($Specific_output_file ne '' && ! $Do_lnkr)
1286 ? $Specific_output_file
1287 : &odir_ify($ifile_root, 'o');
1288 $hifile_target= ($Specific_hi_file ne '')
1290 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1291 # NB: may change if $ifile_root isn't module name (??)
1292 ($ofile_c_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.c/;
1293 ($ofile_h_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.h/;
1295 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1296 $ifile_root = '_stdin';
1297 $ofile_target = '_stdout'; # gratuitous?
1298 $hifile_target= '_stdout'; # ditto?
1302 We need to decide what phases of the compilation system we will run
1303 over this file. The defaults are the ones established when processing
1304 flags. (That established what the last phase run for all files is.)
1306 We do the pre-recompilation-checker phases here; the rest later.
1310 Look at the suffix and decide what initial phases of compilation may
1311 be dropped off for this file. Also the rather boring business of
1312 which files are coming-in/going-out.
1314 Again, we'll do the post-recompilation-checker parts of this later.
1316 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1317 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1320 # names of the files to stuff between phases
1321 # defaults are temporaries
1322 local($in_lit2pgm) = $ifile;
1323 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1324 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1325 local($hsc_hi) = "$Tmp_prefix.hi";
1326 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1327 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1328 local($as_out) = $ofile_target;
1330 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
1332 # OK, let's strip off some literate junk..
1334 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
1336 $lit2pgm_hscpp = $ifile;
1342 # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas
1343 &check_for_source_options($lit2pgm_hscpp,$ifile);
1345 # Options found in the source file take a back seat, i.e., we scan
1346 # them first. Only process the command line again if source file
1347 # contained anything of interest *or* there's more than one
1348 # input file (we have to reset the options).
1350 if ( $#Input_file >= 0 || $#File_options >= 0) {
1351 #@File_options = (@File_options, @Cmd_opts);
1353 # Now process the command line
1354 &initDriverGlobals();
1355 &processArgs((@File_options,@Cmd_opts));
1356 print STDERR "\nEffective command line: " .
1357 join(' ',(@File_options,@Cmd_opts)) . "\n" if $Verbose;
1360 # Having got the effective command line scanned, set up
1361 # the various options in prep for some real work.
1363 # check the sanity of the BuildTag we're about to use,
1364 # and if needs be, add some more flags and setup to
1365 # the different phases.
1368 &setupOptimiseFlags();
1371 &setupWarningFlags();
1372 &setupHeapStackSize();
1375 # These two variables need to be set after the
1376 # command-line has been processed and the build options
1377 # have be seen set up. This is because command-line options
1378 # can control whether to compile vias C or not.
1380 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1382 : ( ($HscOut eq '-C=') ? 1 : 0 );
1383 local($do_as) = $Do_as;
1384 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1385 local($hsc_out_c_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.c" : "";
1386 local($hsc_out_h_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.h" : "";
1388 if ($Only_preprocess_hc) { # stop after having run $Cc -E
1391 if ($Only_preprocess_C) { # stop after having run $hscpp
1392 $do_hsc=0; $do_cc = 0; $do_as=0;
1393 } elsif ($ifile =~ /.lhs$/ || $ifile =~ /.hs$/ ) {
1395 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
1396 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1398 $hsc_out_c_stub = '';
1399 $hsc_out_h_stub = '';
1400 } elsif ($ifile =~ /\.c$/) {
1401 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1402 $hsc_out = $ifile; $is_hc_file = 0;
1403 $hsc_out_c_stub = '';
1404 $hsc_out_h_stub = '';
1405 } elsif ($ifile =~ /\.[sS]$/) {
1406 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
1408 } else { # don't know what it is, but nothing to do herein...
1409 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
1412 # hack to avoid running hscpp
1413 $HsCpp = $Cat if ! $Cpp_flag_set;
1415 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) if $do_hscpp;
1419 We now think about whether to run hsc/cc or not (when hsc produces .s
1420 stuff, it effectively takes the place of both phases).
1421 To get the output file name right: for each phase that we are {\em
1422 not} going to run, set its input (i.e., the output of its preceding
1423 phase) to @"$ifile_root.<suffix>"@.
1426 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
1429 # Warning issued if -keep-hc-file-too is used without
1430 # -fvia-C (or the equivalent)
1432 if ( $HscOut ne '-C=' && $Keep_hc_file_too ) {
1433 print STDERR "$Pgm: warning: Native code generator to be used, -keep-hc-file-too will be ignored\n";
1436 if (! $do_cc && ! $do_as) { # stopping after hsc
1437 $hsc_out = ($Specific_output_file ne '')
1438 ? $Specific_output_file
1439 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
1441 $ofile_target = $hsc_out; # reset
1444 if (! $do_as) { # stopping after gcc (or hsc)
1445 $cc_as = ($Specific_output_file ne '')
1446 ? $Specific_output_file
1447 : &odir_ify($ifile_root, ( $Only_preprocess_hc ) ? 'i' : 's');
1449 $ofile_target = $cc_as; # reset
1455 Now the Haskell compiler, C compiler, and assembler
1459 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
1460 $ofile_target, $hifile_target,
1461 $going_interactive);
1464 if (-f $hsc_out_h_stub) {
1465 &run_something("cp $hsc_out_h_stub $ofile_h_stub_target", 'Copy foreign export header file');
1468 if (-f $hsc_out_c_stub) {
1469 &run_something("rm -f $ofile_c_stub_target && echo '#include \"${ofile_h_stub_target}\"' > $ofile_c_stub_target && cat $hsc_out_c_stub >> $ofile_c_stub_target", 'Copy foreign export C stubs');
1470 local ($hsc_out_s_stub);
1471 local ($hsc_out_o_stub);
1472 ($ofile_s_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$/\.s/;
1473 ($ofile_o_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$//;
1475 $ofile_o_stub_target = &osuf_ify($ofile_o_stub_target, "o");
1477 &runGcc (0, $ofile_c_stub_target, $ofile_s_stub_target);
1478 &runAs ($ofile_o_stub_target, $ofile_s_stub_target);
1481 # Bring the C stub protos into scope when compiling the .hc file.
1483 push (@CcInjects, "#include \"${hsc_out_h_stub}\"\n");
1484 # Hack - ensure that the stub .h file is included in the OPTIONS section
1485 # if the .hc file is saved.
1486 push (@File_options, "-#include \"${ofile_h_stub_target}\"\n");
1491 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
1492 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root) if ! $Only_preprocess_hc;
1495 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
1497 # save a copy of the .s file..
1498 &saveIntermediate($ifile_root , "s" , $cc_as) if ($do_as && $Keep_s_file_too);
1499 &runAs($as_out, $ifile_root) if $do_as;
1502 Finally, decide what to queue up for linker input.
1504 # tentatively assume we will eventually produce linker input:
1505 push(@Link_file, &odir_ify($ifile_root, 'o'));
1507 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
1509 if ( $ifile !~ /\.(lhs|hs|hc|c|s|a|S)$/ && $ifile !~ /_hc$/ ) {
1510 # There's sometimes confusion regarding .hi files; users
1511 # supplying them on the command line.
1512 if ( $ifile =~ /\.hi$/ ) {
1513 print STDERR "$Pgm: warning: found `$ifile' on command line; interface files should not be supplied here - ignoring it.\n";
1515 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n";
1517 # oops; we tentatively pushed the wrong thing; fix & do the right thing
1518 pop(@Link_file); push(@Link_file, $ifile);
1522 } # end of ProcessInputFile
1525 %************************************************************************
1527 \section[Driver-run-phases]{Routines to run the various phases}
1529 %************************************************************************
1533 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
1537 # Only add #line pragma if we're going to need it.
1538 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && " if ($Cpp_flag_set);
1539 $to_do .= "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
1541 push(@Files_to_tidy, $lit2pgm_hscpp );
1543 &run_something($to_do, 'literate pre-processor');
1549 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
1553 # Strictly speaking, echoing of the following line pragma is only required
1554 # on non-delit'ed input, as we've already added it during de-lit. However,
1555 # hscpp will then add a {-# LINE 1 "$lit2pgm_hsc" -} to the top of the file,
1556 # which is not very informative (but harmless). Hence, we uniformly have
1557 # {-# LINE 1 "$in_lit2pgm" #-} as the first line to all cpp'ed hsc input.
1559 $to_do = "echo '{-# LINE 1 \"$in_lit2pgm\" -}' > $hscpp_hsc && ";
1561 if ($HsCpp eq $Cat) {
1562 $to_do .= "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
1563 push(@Files_to_tidy, $hscpp_hsc );
1564 &run_something($to_do, 'Ineffective C pre-processor');
1566 local($includes) = '-I' . join(' -I',@Include_dir);
1567 $to_do .= "$HsCpp $Verbose @HsCpp_flags @HsSourceCppOpts $includes $lit2pgm_hscpp >> $hscpp_hsc";
1568 push(@Files_to_tidy, $hscpp_hsc );
1569 &run_something($to_do, 'Haskellised C pre-processor');
1572 if ( $Only_preprocess_C ) {
1573 $to_do = "$Cat $hscpp_hsc";
1574 &run_something($to_do, '');
1582 sub runHscAndProcessInterfaces {
1583 local($ifile, $hscpp_hsc, $ifile_root,
1584 $ofile_target, $hifile_target,
1585 $going_interactive) = @_;
1587 # $ifile is the original input file
1588 # $hscpp_hsc post-unlit, post-cpp, etc., input file
1589 # $ifile_root input filename minus suffix
1590 # $ofile_target the output file that we ultimately hope to produce
1591 # $hifile_target the .hi file ... (ditto)
1593 local($source_unchanged) = 1;
1595 # Check if the source file is up to date relative to the target; in
1596 # that case we say "source is unchanged" and let the compiler bail out
1597 # early if the import usage information allows it.
1599 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
1600 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
1602 # The informational messages below are now conditional on -v being set -- SOF
1603 if ( $ofile_target ne "_stdin.s" && ! -f $ofile_target ) {
1604 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n" if $Verbose;
1605 $source_unchanged = 0;
1608 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
1609 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
1611 if ( $hifile_target ne "_stdout" && ! -f $hifile_target ) {
1612 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n" if $Verbose;
1613 $source_unchanged = 0;
1616 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
1617 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
1619 if ( $ofile_target ne "_stdin.s" && $i_mtime > $o_mtime) {
1620 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n" if $Verbose;
1621 $source_unchanged = 0;
1624 # Tell the compiler which version we're using
1625 push(@HsC_flags, "-fhi-version=${ProjectVersionInt}");
1627 # So if source_unchanged is still "1", we pass on the good news to the compiler
1628 # The -recomp flag can disable this, forcing recompilation
1629 if ($Do_recomp_chkr && $source_unchanged) {
1630 push(@HsC_flags, '-fsource-unchanged');
1633 # Indicate whether we're static or not.
1634 # This will only ever
1635 push(@HsC_flags, '-static') if $Static;
1639 &runHsc($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive);
1641 # See if it bailed out early, saying nothing needed doing.
1642 # We work this out by seeing if it created an output .hi file
1644 if ( ! -f $hsc_hi && $ProduceHi !~ /-nohifile=/ ) {
1645 # Doesn't exist, so we bailed out early.
1646 # Tell the C compiler and assembler not to run
1647 $do_cc = 0; $do_as = 0;
1649 # Update dependency info, touch both object file and
1650 # interface file, so that the following invariant is
1653 # a dependent module's interface file should after recompilation
1654 # checking be newer than the interface files of its imports.
1656 # That is, if module A's interface file changes, then module B
1657 # (which import from A) needs to be checked.
1658 # If A's change does not affect B, which causes the compiler to bail
1659 # out early, we still need to touch the interface file of B. The reason
1660 # for this is that B may export A's interface.
1662 &run_something("touch $ofile_target",
1663 "Touch $ofile_target, to propagate dependencies") if $HscOut ne '-N=';
1664 &run_something("touch $hifile_target",
1665 "Touch $hifile_target, to propagate dependencies") if $ProduceHi =~ /-nohifile=/ ;
1669 # Didn't bail out early (new .hi file) so we thunder on
1671 # If non-interactive, heave in the consistency info at the end
1672 # NB: pretty hackish (depends on how $output is set)
1673 if ( ! $going_interactive ) {
1674 if ( $HscOut eq '-C=' ) {
1675 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
1677 } elsif ( $HscOut eq '-S=' ) {
1678 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
1679 $consist =~ s/,/./g;
1680 $consist =~ s/\//./g;
1681 $consist =~ s/-/_/g;
1682 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
1683 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
1685 &run_something($to_do, 'Pin on Haskell consistency info');
1689 # Interface-handling is important enough to live off by itself
1690 if ( $ProduceHi !~ /-nohifile=/ ) { # If we've produced one, process it.
1691 require('ghc-iface.prl') || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
1692 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
1694 # if we're going to split up object files,
1695 # we inject split markers into the .hc file now
1696 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
1697 &inject_split_markers ( $hsc_out );
1700 # save a copy of the .hc file, even if we are carrying on...
1701 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
1702 &saveIntermediate($ifile_root , "hc" , $hsc_out);
1712 local($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive) = @_;
1714 &makeHiMap() unless $HiMapDone;
1715 push(@HsC_flags, "\"-himap=$HiIncludeString\"");
1716 push(@HsC_flags, "\"-himap-sep=${SplitMarker}\"");
1718 # here, we may produce .hc/.s and/or .hi files
1719 local($output) = '';
1720 #@Files_to_tidy = ();
1722 if ( $going_interactive ) {
1723 # don't need .hi unless we're going to show it on stdout:
1724 $ProduceHi = '-nohifile=' if ! ($HiOnStdout || $Specific_hi_file ne '' );
1725 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
1728 # set up for producing output/.hi; note that flag twiddling
1729 # may mean that nothing will actually be produced:
1730 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out -F=$hsc_out_c_stub -FH=$hsc_out_h_stub";
1731 push(@Files_to_tidy, $hsc_hi, $hsc_out, $hsc_out_c_stub, $hsc_out_h_stub );
1733 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
1734 if ( $CollectingGCstats ) {
1735 push(@HsC_rts_flags, "-S$ifile_root.stat");
1736 push(@Files_to_tidy, "$ifile_root.stat");
1739 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
1740 # emit nofibbish time/bytes-alloc stats to stderr;
1741 # see later .stat file post-processing
1742 print STDERR "warning: both -Rgc-stats and -Rghc-timing used, -Rghc-timing wins." if $CollectingGCstats;
1743 push(@HsC_rts_flags, "-S$Tmp_prefix.stat");
1744 push(@Files_to_tidy, "$Tmp_prefix.stat");
1748 if ($Specific_dump_file ne '') {
1749 $dump = "2>> $Specific_dump_file";
1750 $Using_dump_file = 1;
1754 # Win32 only: If the command processor used by system()
1755 # exec()s the application as an ordinary Win32 executable,
1756 # we're in trouble here, since the command line is likely
1757 # to be > 255 chars long. To work around this situation,
1758 # $HsC also understands `at-files', i.e., `@file' on the
1759 # command line will cause $HsC to add the contents of `file'
1760 # to the command line.
1762 # [ Note: support for `at-files' is not compiled in by default ]
1763 $cmd_line_opts_via_at_file=0;
1764 if ($cmd_line_opts_via_at_file) {
1766 local($to_do_opts) = "$Tmp_prefix.opts";
1767 open(OPTS, "> $Tmp_prefix.opts") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.opts\n");
1768 print OPTS "$dump @HsC_flags $CoreLint $USPLint $StgLint $Verbose";
1770 $to_do = "$HsC $hscpp_hsc \@$Tmp_prefix.opts $output +RTS @HsC_rts_flags";
1774 $to_do = "$HsC $hscpp_hsc $dump @HsC_flags $CoreLint $USPLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
1776 &run_something($to_do, 'Haskell compiler');
1778 # finish business w/ nofibbish time/bytes-alloc stats
1779 &process_ghc_timings() if $CollectGhcTimings;
1783 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
1784 of (module-name, pathname) pairs, one per line, separated by a space.
1787 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1791 # collect in %HiMap; write later; also used elsewhere in driver
1793 local($mod, $path, $d, $e);
1795 # reset the global variables:
1797 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1799 foreach $d ( @Import_dir ) {
1800 if ($HiIncludeString) {
1801 $HiIncludeString = "$HiIncludeString${SplitMarker}${d}%.${HiSuffix}";
1803 $HiIncludeString = "$d%.${HiSuffix}";
1808 foreach $d ( @SysImport_dir ) {
1809 if ($HiIncludeString) {
1810 $HiIncludeString = "$HiIncludeString${SplitMarker}${d}%.${HiSuffix_prelude}";
1812 $HiIncludeString = "${d}%.${HiSuffix_prelude}";
1821 Invoke the 'linker' - either the standard linker or the one used to build
1827 local($libdirs) = '';
1829 # append last minute flags linker and consistency flags
1834 # glue them together:
1835 push(@UserLibrary_dir, @SysLibrary_dir);
1837 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1839 # for a linker, use an explicitly given one, or the going C compiler ...
1840 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1842 if ( ($Specific_output_file eq '') &&
1843 ($TargetPlatform eq 'i386-unknown-cygwin32') ) {
1844 $Specific_output_file = 'main.exe';
1845 print STDERR "Output file not specified, defaulting to \"main.exe\"\n";
1848 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1849 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1851 &prepareWin32DllLink(1);
1853 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $libdirs @UserLibrary @SysLibrary";
1854 &run_something($to_do, 'Linker');
1856 # finally, check the consistency info in the binary
1857 local($executable) = $Files_to_tidy[0];
1858 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1861 # dynamically load consistency-chking code; then do it.
1862 require('ghc-consist.prl')
1863 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1865 &chk_consistency_info ( $executable );
1868 # if PVM parallel stuff, we do truly weird things.
1869 # Essentially: (1) move the executable over to where PVM expects
1870 # to find it. (2) create a script in place of the executable
1871 # which will cause the program to be run, via SysMan.
1872 if ( $PARing eq 'p' ) {
1873 local($pvm_executable) = $executable;
1874 local($pvm_executable_base);
1876 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1877 local($pwd) = `pwd`;
1879 $pwd =~ s/^\/tmp_mnt//;
1880 $pvm_executable = "$pwd/$pvm_executable";
1883 $pvm_executable =~ s|/|=|g; # make /s into =s
1884 $pvm_executable_base = $pvm_executable;
1886 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1887 . "/$pvm_executable";
1889 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1891 # OK, now create the magic script for "$executable"
1892 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1893 print EXEC <<EOSCRIPT1;
1894 eval 'exec perl -S \$0 \${1+"\$@"}'
1895 if \$running_under_some_shell;
1896 # =!=!=!=!=!=!=!=!=!=!=!
1897 # This script is automatically generated: DO NOT EDIT!!!
1898 # Generated by Glasgow Haskell, version ${ProjectVersion}
1900 \$pvm_executable = '$pvm_executable';
1901 \$pvm_executable_base = '$pvm_executable_base';
1902 \$SysMan = '$SysMan';
1905 print EXEC <<\EOSCRIPT2;
1906 # first, some magical shortcuts to run "commands" on the binary
1908 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1910 system("$cmd $pvm_executable");
1914 # OK, really run it; process the args first
1915 $ENV{'PE'} = $pvm_executable_base;
1917 $nprocessors = 2; # the default
1921 # ToDo: handle --RTS
1922 args: while ($a = shift(@ARGV)) {
1923 if ( $a eq '+RTS' ) {
1925 } elsif ( $a eq '-RTS' ) {
1928 if ( $a eq '-d' && $in_RTS_args ) {
1930 } elsif ( $a =~ /^-N(\d+)/ && $in_RTS_args ) {
1933 push(@nonPVM_args, $a);
1937 local($return_val) = 0;
1938 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
1940 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
1943 close(EXEC) || die "Failed closing $executable\n";
1944 chmod 0755, $executable;
1952 # append last minute flags linker and consistency flags
1957 # glue them together:
1958 push(@UserLibrary_dir, @SysLibrary_dir);
1960 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1962 &prepareWin32DllLink(0);
1964 local ($bld_dll) = "dllwrap";
1966 local ($output) = ($Specific_output_file ne '') ? "$Specific_output_file" : 'HSdll.dll';
1967 local ($output_dir);
1968 local ($output_file);
1969 local ($output_lib, $output_def);
1971 ($output_dir = $output) =~ s|(.*/)[^/]+$|$1|;
1972 $output_dir = "" if ($output_dir eq $output);
1973 ($output_file = $output) =~ s|.*/([^/]+)$|$1|;
1975 ($output_lib = $output_file) =~ s|(.+)\.[^\.]*$|${output_dir}lib$1_imp.a|;
1976 ($output_def = $output_file) =~ s|(.+)\.[^\.]*$|${output_dir}$1.def|;
1978 push (@Dll_flags, "-mno-cygwin --target=i386-mingw32") if ($TargetPlatform =~ /^.*mingw32$/);
1979 push (@Dll_flags, "--output-lib $output_lib");
1980 # If the "--def " option hasn't been supplied, assume everything
1981 # is going to be exported via the DLL.."
1982 if (!grep(/--def/, @Dll_flags)) {
1983 push (@Dll_flags, "--export-all --output-def $output_def");
1986 local($to_do) = "$bld_dll @Dll_flags -o $output @Link_file $libdirs @UserLibrary @SysLibrary";
1987 # Make sure the user sees this piece of magic.
1988 print STDERR "$to_do\n" if (!$Verbose);
1989 &run_something($to_do, 'DLL creator');
1992 sub prepareWin32DllLink
1994 local($linking_main) = @_;
1997 # Win32 DLLs - link with import libraries, not the real archives.
1999 if ( $TargetPlatform =~ /-mingw32$/ ) {
2002 # If the libraries have the form libHSfoo.a, we
2003 # transform that into libHSfoo_imp.a - the import
2004 # library of the DLL.
2006 foreach $a ( @SysLibrary ) {
2007 $a = "${a}_imp" if ($a =~ /^-lHS/);
2009 foreach $a ( @UserLibrary ) {
2010 $a = "${a}_imp" if ($a =~ /^-lHS/);
2012 push(@Link_file, ( $INSTALLING ) ? "$InstLibDirGhc/Main.dll_o"
2013 : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/Main.dll_o") if $linking_main;
2014 push(@Link_file, ( $INSTALLING ) ? "$InstLibDirGhc/PrelMain.dll_o"
2015 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std/PrelMain.dll_o") if $linking_main;
2017 push(@Ld_flags, "-mno-cygwin");
2023 %************************************************************************
2025 \section[Driver-misc-utils]{Miscellaneous utilities}
2027 %************************************************************************
2029 %************************************************************************
2031 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
2033 %************************************************************************
2037 local($ofile,$def_suffix) = @_;
2039 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
2043 local($orig_file, $def_suffix) = @_;
2044 if ($Specific_output_dir eq '') { # do nothing
2045 &osuf_ify($orig_file, $def_suffix);
2047 local ($orig_file_only);
2048 ($orig_file_only = $orig_file) =~ s|.*/||;
2049 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
2056 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
2058 local($includes) = '-I' . join(' -I', @Include_dir);
2061 local($c_flags) = "@CcBoth_flags";
2062 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2064 $c_flags .= " -mno-cygwin" if ( $TargetPlatform =~ /-mingw32$/ );
2066 # "input" files to use that are not in some weird directory;
2067 # to help C compilers grok .hc files [ToDo: de-hackify]
2068 local($cc_help) = "ghc$$.c";
2069 local($cc_help_s) = "ghc$$.s";
2072 $s_output = (($is_hc_file && $DoAsmMangling) || $TargetPlatform =~ /^(powerpc|rs6000|hppa)/) ? $cc_as_o : $cc_as;
2073 $c_flags .= " @CcRegd_flags";
2074 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2076 # C compiler won't like the .hc extension. So we create
2077 # a tmp .c file which #include's the needful.
2078 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2079 if ( $is_hc_file ) {
2083 # user may have asked for #includes to be injected...
2084 print TMP @CcInjects if $#CcInjects >= 0;
2086 # Straight .c files may want to know that they're being used
2087 # with a particular version of GHC, so we define __GLASGOW_HASKELL__ for their benefit.
2088 print TMP "#define __GLASGOW_HASKELL__ ${ProjectVersionInt}\n";
2090 # heave in the consistency info
2091 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2093 print TMP "#include \"$hsc_out\"\n";
2094 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2096 # Don't redirect stderr into intermediate file if slamming output onto stdout (e.g., with -E)
2097 local($fuse_stderr) = "2>&1" if ! $Only_preprocess_hc;
2098 local($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 )";
2100 if ( $Only_preprocess_hc ) { # HACK ALERT!
2101 $to_do =~ s/ -S\b//g;
2103 push(@Files_to_tidy, $cc_help, $cc_help_s, $s_output );
2104 $PostprocessCcOutput = 1 if ! $Only_preprocess_hc; # hack, dear hack...
2105 &run_something($to_do, 'C compiler');
2106 $PostprocessCcOutput = 0;
2107 if ( $Only_preprocess_hc ) {
2108 system("$Cat $Tmp_prefix.ccout");
2110 unlink($cc_help, $cc_help_s);
2116 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2118 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2120 if ($is_hc_file && $DoAsmMangling) {
2121 # dynamically load assembler-fiddling code, which we are about to use:
2122 require('ghc-asm.prl')
2123 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2124 # post-process the assembler [.hc files only]
2125 &mangle_asm($cc_as_o, $cc_as);
2127 } elsif ($TargetPlatform =~ /^hppa/) {
2128 # minor mangling of non-threaded files for hp-pa only
2129 require('ghc-asm.prl')
2130 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2131 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2133 } elsif ($TargetPlatform =~ /^powerpc|^rs6000/) {
2134 # minor mangling of non-threaded files for powerpcs and rs6000s
2135 require('ghc-asm.prl')
2136 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-powerpc.prl!\n");
2137 &mini_mangle_asm_powerpc($cc_as_o, $cc_as);
2140 # save a copy of the .s file, even if we are carrying on...
2141 #if ($do_as && $Keep_s_file_too) {
2142 # &saveIntermediate($ifile_root , "s" , $cc_as);
2149 local($as_out, $ifile_root) = @_;
2151 local($asmblr) = ( $As ) ? $As : $CcRegd;
2153 # need to add the -I flags in case the file is going through cpp (.S files)
2154 local($includes) = '-I' . join(' -I', @Include_dir);
2156 if ( ! $SplitObjFiles ) {
2157 local($to_do) = "$asmblr -o $as_out -c @As_flags $includes $cc_as";
2158 push(@Files_to_tidy, $as_out );
2159 &run_something($to_do, 'Unix assembler');
2161 } else { # more complicated split-ification...
2163 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2165 # If -odir is used, great, just pin it in front of the
2166 # generated split file names. If it hasn't been set, we
2167 # snatch it from the ifile_root.
2171 if ( $Specific_output_dir eq '' ) {
2172 $Specific_output_dir = ${ifile_root};
2175 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2176 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2177 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2178 push(@Files_to_tidy, $split_out );
2180 &run_something($to_do, 'Unix assembler');
2186 %************************************************************************
2188 \subsection[Driver-run-something]{@run_something@: Run a phase}
2190 %************************************************************************
2194 local($str_to_do, $tidy_name) = @_;
2196 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2197 print STDERR "$str_to_do\n" if $Verbose;
2199 if ($Using_dump_file) {
2200 open(DUMP, ">> $Specific_dump_file")
2201 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2202 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2204 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2207 local($return_val) = 0;
2209 if ( length($str_to_do) > 4000) {
2210 # 4000 - on the random side, just like the *real* ARG_MAX
2213 # With some shells, command lines of this length may
2214 # very well cause trouble. To safeguard against this, we squirrel the
2215 # command into a file and exec that.
2216 local ($sh) = $ENV{'REAL_SHELL'};
2217 print STDERR "Backup plan A: saving cmd line in ${Tmp_prefix}.sh and executing that with $sh\n" if $Verbose;
2218 open (TEMP, "> ${Tmp_prefix}.sh") ||
2219 &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.sh'\n");
2220 print TEMP "$Time $str_to_do\n";
2222 &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.sh'\n");
2223 system("$sh $Tmp_prefix.sh");
2226 unlink "${Tmp_prefix}.sh";
2228 system("$Time $str_to_do");
2232 if ( $PostprocessCcOutput ) { # hack, continued
2233 open(CCOUT, "< $Tmp_prefix.ccout")
2234 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2236 next if /call-clobbered/;
2237 next if /control reaches end/;
2238 next if /from .*Stg\.h:/;
2239 next if /from ghc\d+.c:\d+:/;
2240 next if /: At top level:$/;
2241 next if /: In function \`.*\':$/;
2242 next if /\`ghc_cc_ID\' defined but not used/;
2245 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2248 if ($return_val != 0) {
2249 if ($Using_dump_file) {
2250 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2252 &tidy_up_and_die($return_val, '');
2254 $Using_dump_file = 0;
2258 %************************************************************************
2260 \subsection[Driver-ghc-timing]{Emit nofibbish GHC timings}
2262 %************************************************************************
2264 NB: nearly the same as in @runstdtest@ script.
2267 sub process_ghc_timings {
2268 local($StatsFile) = "$Tmp_prefix.stat";
2269 local($SysSpecificTiming) = 'ghc';
2271 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2272 local($max_live) = 0;
2273 local($tot_live) = 0; # for calculating residency stuff
2274 local($tot_samples) = 0;
2277 if (! /Gen:\s+0/ && ! /Minor/ && /^\s*\d+\s+\d+\s+(\d+)\s+\d+\.\d+/ ) {
2278 $max_live = $1 if $max_live < $1;
2282 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2284 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2285 $MaxResidency = $1; $ResidencySamples = $2;
2288 $GCs = $1 if /^\s*([0-9,]+) (collections? in generation 0|garbage collections? performed)/;
2290 if ( /^\s+([0-9]+)\s+Mb total memory/ ) {
2294 # The presence of -? in the following pattern is only there to
2295 # accommodate 0.29 && <= 2.05 RTS'
2296 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*-?(\d+\.\d\d)s elapsed\)/ ) {
2297 $InitTime = $1; $InitElapsed = $2;
2298 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2299 $MutTime = $1; $MutElapsed = $2;
2300 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2301 $GcTime = $1; $GcElapsed = $2;
2304 close(STATS) || die "Failed when closing $StatsFile\n";
2305 if ( $tot_samples > 0 ) {
2306 $ResidencySamples = $tot_samples;
2307 $MaxResidency = $max_live;
2308 $AvgResidency = int ($tot_live / $tot_samples) ;
2311 # warn about what we didn't find
2312 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2313 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2314 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2315 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2316 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2317 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2318 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2319 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2321 # things we didn't necessarily expect to find
2322 $MaxResidency = 0 unless defined($MaxResidency);
2323 $AvgResidency = 0 unless defined($AvgResidency);
2324 $ResidencySamples = 0 unless defined($ResidencySamples);
2327 $BytesAlloc =~ s/,//g;
2328 $MaxResidency =~ s/,//g;
2330 $InitTime =~ s/,//g;
2331 $InitElapsed =~ s/,//g;
2333 $MutElapsed =~ s/,//g;
2335 $GcElapsed =~ s/,//g;
2337 # print out what we found
2338 print STDERR "<<$SysSpecificTiming: ",
2339 "$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)",
2340 " :$SysSpecificTiming>>\n";
2347 %************************************************************************
2349 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2351 %************************************************************************
2355 local($to_do) = "\n$Rm $Tmp_prefix*";
2356 if ( $Tmp_prefix !~ /^\s*$/ ) {
2357 print STDERR "$to_do\n" if $Verbose;
2362 sub tidy_up_and_die {
2363 local($return_val, $msg) = @_;
2365 # delete any files to tidy
2366 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2367 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2371 exit (($return_val == 0) ? 0 : 1);
2375 %************************************************************************
2377 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2379 %************************************************************************
2381 Some command-line arguments take an argument, e.g.,
2382 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2383 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2384 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2386 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2387 gobble the second argument (and probably set the heapsize to something
2391 local(*Args, $option, $rest_of_arg) = @_;
2393 if ($rest_of_arg ne '') {
2394 return($rest_of_arg);
2395 } elsif ($#Args >= 0) {
2396 local($temp) = $Args[0]; shift(@Args);
2399 print STDERR "$Pgm: no argument following $option option\n";
2410 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2412 foreach $f ( @HsC_antiflags ) {
2413 return(0) if $flag eq $f;
2415 # foreach $f ( @HsC_flags ) {
2416 # return(0) if $flag eq $f;
2421 sub squashHscFlag { # pretty terrible
2425 foreach $f ( @HsC_flags ) {
2426 if ($flag eq $f) { $f = ''; }
2434 foreach $f ( @flags ) {
2435 push( @HsC_flags, $f ) if &isntAntiFlag($f);
2440 To add another system library, you'll need to augment the
2441 Supported_syslibs variable with name and info on your addition
2442 to the syslib family. The info bit consist of the following:
2444 - interface file directory
2445 see the misc or posix entry for how to distinguish
2446 between using installed and build tree directories.
2448 - directory location of archives
2450 - location of (way-independent) C support libs.
2451 not all libraries need this - if you don't, just
2452 give the empty string.
2453 - list of syslibs you depend on.
2455 - additional ghc command line flags that should be used.
2456 - additional C compiler command line flags that should be used.
2462 # Hash to keep track of
2463 %Syslibs_added = ();
2466 local($syslib) = @_;
2468 # Lifting this out of this sub brings it out of scope - why??
2469 %Supported_syslibs =
2471 [ # where to slurp interface files from
2473 ? "$InstLibDirGhc/imports/exts"
2474 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/exts"
2476 , # where to find the archive to use when linking
2479 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/exts"
2482 , '' # Syslib dependencies
2483 , '' # extra ghc opts
2484 , '' # extra cc opts
2485 , '' # extra ld opts
2489 [ # where to slurp interface files from
2491 ? "$InstLibDirGhc/imports/misc"
2492 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc"
2494 , # where to find the archive to use when linking
2497 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc"
2499 , # where to find the cbits archive to use when linking
2502 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc/cbits"
2504 , 'exts concurrent' # Syslib dependencies
2505 , '' # extra ghc opts
2506 , '' # extra cc opts
2507 , ( $TargetPlatform =~ /-solaris2$/ ? '-lnsl -lsocket' : '')
2510 [ # where to slurp interface files from
2512 ? "$InstLibDirGhc/imports/hbc"
2513 : "$TopPwd/CONTRIB/libraries/hbc/src"
2515 , # where to find the archive to use when linking
2518 : "$TopPwd/CONTRIB/libraries/src/hbc"
2520 , # where to find the cbits archive to use when linking
2523 : "$TopPwd/CONTRIB/libraries/hbc/cbits"
2525 , 'exts' # Syslib dependencies
2526 , '' # extra ghc opts
2527 , '' # extra cc opts
2531 [ # where to slurp interface files from
2533 ? "$InstLibDirGhc/imports/posix"
2534 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix"
2536 , # where to find the archive to use when linking
2539 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix"
2541 , # where to find the cbits archive to use when linking
2544 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix/cbits"
2546 , 'misc' # Syslib dependencies
2547 , '' # extra ghc opts
2548 , '' # extra cc opts
2549 , '' # extra ld opts
2552 [ # where to slurp interface files from
2554 ? "$InstLibDirGhc/imports/concurrent"
2555 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent"
2557 , # where to find the archive to use when linking
2560 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent"
2562 , '' # where to find the cbits archive to use when linking
2563 , '' # Syslib dependencies
2564 , '' # extra ghc opts
2565 , '' # extra cc opts
2566 , '' # extra ld opts
2569 [ # where to slurp interface files from
2571 ? "$InstLibDirGhc/imports/win32"
2572 : "$TopPwd/hslibs/win32/src"
2574 , # where to find the archive to use when linking
2577 : "$TopPwd/hslibs/win32/src"
2580 , 'exts' # Syslib dependencies
2581 , '' # extra ghc opts
2582 , '' # extra cc opts
2583 , '-luser32 -lgdi32' # extra ld opts
2586 [ # where to slurp interface files from
2588 ? "$InstLibDirGhc/imports/com"
2589 : "$TopPwd/hdirect/lib"
2591 , # where to find the archive to use when linking
2594 : "$TopPwd/hdirect/lib"
2597 , 'exts' # Syslib dependencies
2598 , '' # extra ghc opts
2599 , '' # extra cc opts
2600 , '-luser32 -lole32 -loleaut32 -ladvapi32'
2605 # check if it's supported..
2607 if ( !exists $Supported_syslibs{$syslib} ) {
2608 print STDERR "$Pgm: no such system library (-syslib): $syslib\n";
2613 # This check is here to avoid syslib loops from
2614 # spoiling the party. A side-effect of it is that
2615 # it disallows multiple mentions of a syslib on a command-line,
2616 # explicit *and* implicit ones (i.e., "-syslib exts -syslib misc"
2617 # is not equal to "-syslib exts -syslib misc -syslib exts",
2618 # which it needs to be)
2620 # Since our current collection of syslibs don't have any
2621 # loops, this test is disabled.
2623 # ToDo: loop avoidance scheme when the need arises
2625 #return if ( exists $Syslibs_added{$syslib} );
2627 $Syslibs_added{$syslib} = 1;
2629 local ($hi_dir, $lib_dir, $lib_cbits_dir,
2630 $syslib_deps, $syslib_ghc_opts,
2631 $syslib_cc_opts, $syslib_ld_opts) = @{ $Supported_syslibs{$syslib} };
2634 unshift(@SysImport_dir, $hi_dir);
2635 push(@SysLibrary_dir, $lib_dir);
2636 push(@SysLibrary_dir, $lib_cbits_dir) if ( $lib_cbits_dir ne '');
2638 push(@SysLibrary, "-lHS$syslib");
2639 push(@SysLibrary, "-lHS${syslib}_cbits") if ( $lib_cbits_dir ne '');
2640 push(@SysLibrary, $syslib_ld_opts) if ($syslib_ld_opts ne '');
2642 # Add on any extra dependencies.
2643 foreach $lib (split(' ',$syslib_deps)) {
2649 Source files may have {-# OPTIONS ... #-} pragmas at the top, containing
2650 command line options we want to append to collection of commands specified
2651 directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell
2652 file for any such pragmas:
2655 sub check_for_source_options {
2656 local($file,$ifile) = @_;
2657 local($comment_start,$comment_end);
2659 if ($ifile =~ /\.hc$/ ||
2662 $ifile =~ /_s$/ ) { # `Real' C intermediate
2663 $comment_start = "/\\*";
2664 $comment_end = "\\*/";
2665 } else { # Assume it is a file containing Haskell source
2666 $comment_start = "{-#";
2667 $comment_end = "#-}";
2670 open(FILE,$file) || return(1); # No big loss
2673 if ( /^${comment_start} OPTIONS (.*)${comment_end}/ ) {
2674 # add the options found at the back of the command line.
2675 local(@entries) = split(/\s+/,$1);
2676 print STDERR "Found OPTIONS " . join(' ',@entries) . " in $file\n" if $Verbose;
2677 push(@File_options, @entries);
2679 elsif ( /^$/ ) { # ignore empty lines
2682 elsif ( /^#line.+$/ ) { # ignore comment lines (unused..ToDo: rm )
2685 elsif ( /^{-# LINE.+$/ ) { # ignore line pragmas
2688 else { # stop looking, something non-empty / not
2689 # ${comment_start} OPTIONS .. ${comment_end} encountered.
2690 close(FILE);return(0);
2699 We split the initial argv up into three arrays:
2705 the reason for doing so is to be able to deal
2706 with {-# OPTIONS #-} pragma in source files properly.
2712 arg: while($_ = $args[0]) {
2714 # sigh, we have to deal with these -option arg specially here.
2715 /^-(tmpdir|odir|ohi|o|isuf|osuf|hisuf|odump|syslib)$/ &&
2716 do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; };
2717 /^--?./ && do { push(@Cmd_opts, $_); next arg; };
2719 if (/\.([^_]+_)?[oa]$/) {
2720 push(@Link_file, $_);
2722 push(@Input_file, $_);
2725 # input files must exist:
2727 print STDERR "$Pgm: input file doesn't exist: $_\n";
2735 When saving an intermediate file (.hc or .s) away, we
2736 have to prefix any OPTIONS found in the original source file.
2739 sub saveIntermediate {
2740 local ($final,$suffix,$tmp)= @_ ;
2743 # $final -- root of where to park ${final}.${suffix}
2744 # $tmp -- temporary file where hsc put the intermediate file.
2746 # Delete the old file
2747 $to_do = "$Rm ${final}.${suffix}"; &run_something($to_do, "Removing old .${suffix} file");
2749 if ( $#File_options >= 0 ) { # OPTIONS found in Haskell source unit
2750 # Add OPTION comment to the top of the generated .${suffix} file
2751 open(TEMP, "> ${final}.${suffix}") || &tidy_up_and_die(1,"Can't open ${final}.${suffix}\n");
2752 print TEMP "/* OPTIONS " . join(' ',@File_options) . " */\n";
2754 print STDERR "Prepending OPTIONS: " . join(' ',@File_options) . " to ${final}.${suffix}\n" if $Verbose;
2756 $to_do = "$Cat $tmp >> ${final}.${suffix}";
2757 &run_something($to_do, "Saving copy of .${suffix} file");
2764 Command-line processor
2770 # can't use getopt(s); what we want is too complicated
2772 arg: while($_ = $Args[0]) {
2775 #---------- help -------------------------------------------------------
2776 if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; }
2778 #-----------version ----------------------------------------------------
2779 /^--version$/ && do { print STDERR "${ProjectName}, version ${ProjectVersion}\n"; exit $Status; };
2781 #---------- verbosity and such -----------------------------------------
2782 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
2784 #---------- what phases are to be run ----------------------------------
2785 /^-(no-)?recomp/ && do { $Do_recomp_chkr = ($1 eq '') ? 1 : 0; next arg; };
2787 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
2788 # change the global default:
2789 # we won't run cat; we'll run the real thing
2791 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
2793 # stop after generating C
2795 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
2796 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
2798 # leave out actual C generation (debugging) [also turns off interface gen]
2801 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
2802 # _do_ generate an interface; usually used as: -noC -hi
2803 /^-hi-with-(.*)$/ && do { $HiOnStdout = 1; $HiWith .= " $1" ; $ProduceHi = '-hifile='; next arg; };
2804 # limit ourselves to outputting a particular section.
2806 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
2807 # don't generate an interface (even if generating C)
2809 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
2810 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
2811 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
2812 /^-keep-hi-diffs$/ && do { $Keep_HiDiffs = 1; next arg; };
2814 # show/disable diffs if the interface file changes
2816 /^-E$/ && do { push(@CcBoth_flags, '-E');
2817 $Only_preprocess_C = 1;
2818 $Do_as = 0; $Do_lnkr = 0; next arg; };
2819 # stop after preprocessing C
2820 /^-M$/ && do { $Only_generate_deps = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2821 # only generate dependency information.
2822 /^--mk-dll$/ && do { $Only_generate_dll = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2823 # Build a Win32 DLL (where supported).
2824 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
2825 # stop after generating assembler
2827 /^-c$/ && do { $Do_lnkr = 0; next arg; };
2828 # stop after generating .o files
2830 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
2831 # don't do consistency-checking after a link
2832 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
2834 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', '');
2835 $Tmp_prefix = "$Tmp_prefix/ghc$$";
2836 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
2838 # use an alternate directory for temp files
2840 #---------- redirect output --------------------------------------------
2842 # -o <file>; applies to the last phase, whatever it is
2843 # "-o -" sends it to stdout
2844 # if <file> has a directory component, that dir must already exist
2846 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', '');
2848 # Hack, of the worst sort: don't do validation of
2849 # odir argument if you're using -M (dependency generation).
2851 if ( ! $Only_generate_deps && ! -d $Specific_output_dir) {
2852 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
2857 /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', '');
2858 if ($Specific_output_file ne '-'
2859 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
2860 local($dir_part) = $1;
2861 if (! -d $dir_part) {
2862 print STDERR "$Pgm: no such directory: $dir_part\n";
2868 # NB: -isuf not documented yet (because it doesn't work yet)
2869 /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', '');
2870 if ($Isuffix =~ /\./ ) {
2871 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
2876 /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', '');
2877 if ($Osuffix =~ /\./ ) {
2878 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
2883 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
2884 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', '');
2885 if ($Specific_hi_file ne '-'
2886 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
2887 local($dir_part) = $1;
2888 if (! -d $dir_part) {
2889 print STDERR "$Pgm: no such directory: $dir_part\n";
2893 $ProduceHi='-hifile=';
2896 # The suffix to use when looking for interface files
2897 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', '');
2898 if ($HiSuffix =~ /\./ ) {
2899 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
2903 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', '');
2904 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
2905 local($dir_part) = $1;
2906 if (! -d $dir_part) {
2907 print STDERR "$Pgm: no such directory: $dir_part\n";
2913 #-------------- scc & Profiling Stuff ----------------------------------
2915 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
2917 /^-auto-dicts$/ && do {
2918 $PROFdicts = '-fauto-sccs-on-dicts';
2920 /^-auto-all$/ && do {
2921 $PROFauto = '-fauto-sccs-on-all-toplevs';
2924 $PROFauto = '-fauto-sccs-on-exported-toplevs';
2927 /^-caf-all/ && do { # generate individual CAF SCC annotations
2928 $PROFcaf = '-fauto-sccs-on-individual-cafs';
2931 /^-ignore-scc$/ && do {
2932 # forces ignore of scc annotations even if profiling
2933 $PROFignore_scc = '-W';
2936 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
2939 /^-unprof-scc-auto/ && do {
2940 # generate auto SCCs on top level bindings when not profiling.
2941 # Used to measure optimisation effects of presence of sccs.
2942 $UNPROFscc_auto = ( /-all/ )
2943 ? '-fauto-sccs-on-all-toplevs'
2944 : '-fauto-sccs-on-exported-toplevs';
2947 #--------- ticky/parallel ----------------------------------------------
2948 # we sort out the details a bit later on
2950 /^-gransim$/ && do { $GRANing = 'g'; &add_syslib('concurrent'); next arg; }; # GranSim
2951 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
2952 /^-parallel$/ && do { $PARing = 'p'; &add_syslib('concurrent'); next arg; }; # parallel Haskell
2953 /^-smp$/ && do { $SMPing = 's'; &add_syslib('concurrent'); next arg; }; # parallel Haskell
2955 #-------------- "user ways" --------------------------------------------
2957 (/^-user-setup-([a-oA-Z])$/ ) &&
2959 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
2961 local($stuff) = $UserSetupOpts{$BuildTag};
2962 local(@opts) = split(/\s+/, $stuff);
2964 # feed relevant ops into the arg-processing loop (if any)
2965 unshift(@Args, @opts) if $#opts >= 0;
2969 #---------- set search paths for libraries and things ------------------
2971 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
2972 # prepends the items to the list); -I is for including C .h files.
2974 /^-i$/ && do { @Import_dir = (); # import path cleared!
2975 @SysImport_dir = ();
2976 print STDERR "WARNING: import paths cleared by `-i'\n";
2979 /^-i(.*)/ && do { local(@new_items);
2983 if ( $arg =~ /;/ ) {
2985 @new_items = split( /;/, &grab_arg_arg(*Args,'-i', $arg));
2987 @new_items = split( /:/, &grab_arg_arg(*Args,'-i', $arg));
2989 unshift(@Import_dir, @new_items);
2992 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; };
2993 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; };
2994 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; };
2996 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1);
2997 &add_syslib($syslib);
3000 #=======================================================================
3001 # various flags that we can harmlessly send to one program or another
3002 # (we will later "reclaim" some of the compiler ones now sent to gcc)
3003 #=======================================================================
3005 #---------- this driver itself (ghc) -----------------------------------
3006 # these change what executable is run for each phase:
3007 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
3008 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
3009 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
3010 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
3011 /^-pgma(.*)$/ && do { $As = $1; next arg; };
3012 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
3013 /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; };
3015 #---------- the get-anything-through opts (all pgms) -------------------
3016 # these allow arbitrary option-strings to go to any phase:
3017 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
3018 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
3019 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
3020 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
3021 /^-optcpp(.*)$/ && do { push(@Cpp_define, $1); $Only_preprocess_hc = ($1 eq "-E"); next arg; };
3022 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
3023 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
3024 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
3025 /^-optdll(.*)$/ && do { push(@Dll_flags, $1); next arg; };
3026 /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; };
3028 #---------- Haskell C pre-processor (hscpp) ----------------------------
3029 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; };
3030 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; };
3032 #---------- post-Haskell "assembler"------------------------------------
3033 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
3034 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
3036 #---------- Haskell compiler (hsc) -------------------------------------
3038 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
3039 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
3041 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
3042 /^-fignore-asserts$/ && do { push(@HsC_flags, $_); next arg; };
3044 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
3047 # have the compiler proper generate concurrent code,
3048 # really only used when you want to configure your own
3049 # special user compilation way.
3051 # (ditto for -fgransim, fscc-profiling, -fparallel and -fticky-ticky)
3053 /^-fscc-profiling$/ && do { push(@HsC_flags,$_); next arg; };
3054 /^-fticky-ticky$/ && do { push(@HsC_flags,$_); next arg; };
3055 /^-fgransim$/ && do { push(@HsC_flags,$_); next arg; };
3056 /^-fparallel$/ && do { push(@HsC_flags,$_); next arg; };
3058 /^-split-objs$/ && do {
3059 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|rs6000|sparc)-/ ) {
3061 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
3066 push(@HsC_flags, "-fglobalise-toplev-names");
3067 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
3069 require('ghc-split.prl')
3070 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
3074 /^-unreg$/ && do { $UNREGing = 'u'; next arg; };
3075 /^-funregisterised$/ && do { push(@HsC_flags, $_); next arg; };
3076 /^-fno-asm-mangling$/ && do { $DoAsmMangling = 0; next arg; };
3078 /^-fallow-overlapping-instances$/ && do { push(@HsC_flags, $_); next arg; };
3079 /^-fallow-undecidable-instances$/ && do { push(@HsC_flags, $_); next arg; };
3080 /^-fhistory-size.*$/ && do { push(@HsC_flags, $_); next arg; };
3081 /^-fdicts-strict$/ && do { push(@HsC_flags, $_); next arg; };
3083 && do { push(@HsC_flags, $_);
3085 # -fglasgow-exts implies -syslib exts
3086 &add_syslib('exts');
3091 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
3092 /^-fno-speciali[sz]e$/
3093 && do { $Oopt_DoSpecialise = ''; next arg; };
3096 && do { $Oopt_UsageSPInf = '-fusagesp';
3097 push (@HsC_flags, '-fusagesp-on'); next arg; };
3099 /^-fcompiling-prelude$/ && do { $CompilingPrelude=1; push(@HsC_flags, $_); next arg; };
3101 # Now the foldr/build options, which are *on* by default (for -O).
3104 && do { $Oopt_FoldrBuild = 1;
3108 /^-fno-foldr-build$/
3109 && do { $Oopt_FoldrBuild = 0;
3112 # --------------- Renamer -------------
3115 /^-fno-prune-tydecls$/ && do { push(@HsC_flags, $_); next arg; };
3116 /^-fno-prune-instdecls$/ && do { push(@HsC_flags, $_); next arg; };
3120 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
3121 /^-fvia-[cC]$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
3126 && do { push(@HsC_flags, $_); next arg };
3128 /^-funfold-casms-in-hi-file$/
3129 && do { push(@HsC_flags, $_); next arg };
3131 /^(-fmax-simplifier-iterations)(.*)$/
3132 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2);
3135 /^-fno-pedantic-bottoms$/
3136 && do { $Oopt_PedanticBottoms = ''; next arg; };
3138 /^-fno-pre-inlining$/
3139 && do { push(@HsC_flags, $_); next arg };
3141 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
3142 && do { push(@HsC_flags, $_); next arg; };
3144 /^-funbox-strict-fields$/
3145 && do { push(@HsC_flags, $_); next arg; };
3147 # --------------- Warnings etc. ------
3149 /^-fwarn-(.*)$/ && do { push(@HsC_flags, $_); next arg; };
3151 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
3152 &squashHscFlag("-f$1");
3155 /^-W$/ && do { push(@HsC_flags, @MinusWOpts); next arg; };
3156 /^-Wall$/ && do { push(@HsC_flags, @MinusWallOpts); next arg; };
3157 /^(-Wnot|w)$/ && do { foreach (@Hsc_flags) {
3158 /^-fwarn-(.*)$/ && do { $_=''; };
3160 push(@HsC_antiflags, @StandardWarnings);
3163 # --------------- fun stuff ----------------
3165 /^-freport-compile$/ && do { push(@HsC_flags, $_); next arg; };
3167 # --------------- platform specific flags (for gcc mostly) ----------------
3169 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes,
3170 # for 2.6.x..?, does not apply for 2.7.2
3172 unshift(@CcBoth_flags, ( $_ ));
3175 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
3176 && do { # for GCC for SPARCs
3177 unshift(@CcBoth_flags, ( $_ ));
3180 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
3181 $StolenX86Regs = $1;
3184 #*************** ... and lots of debugging ones (form: -d* )
3186 # -d(no-)core-lint is done this way so it is turn-off-able.
3187 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
3188 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
3189 # Ditto for USP lint
3190 /^-dusagesp-lint/ && do { $USPLint = '-dusagesp-lint'; next arg; };
3191 /^-dno-usagesp-lint/ && do { $USPLint = ''; next arg; };
3192 # Ditto for STG lint
3193 /^-dstg-lint/ && do { $StgLint = '-dstg-lint'; next arg; };
3194 /^-dno-stg-lint/ && do { $StgLint = ''; next arg; };
3196 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
3197 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
3198 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
3199 /^-dshow-rn-stats/ && do { push(@HsC_flags, $_); next arg; };
3200 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
3201 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
3202 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
3203 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
3205 #*************** ... and now all these -R* ones for its runtime system...
3207 /^-Rscale-sizes?(.*)/ && do {
3208 $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1);
3211 /^(-H|-Rmax-heapsize)(.*)/ && do {
3212 local($heap_size) = &grab_arg_arg(*Args,$1, $2);
3213 if ($heap_size =~ /(\d+)[Kk]$/) {
3214 $heap_size = $1 * 1000;
3215 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
3216 $heap_size = $1 * 1000 * 1000;
3217 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
3218 $heap_size = $1 * 1000 * 1000 * 1000;
3220 if ($heap_size <= 0) {
3221 print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n";
3222 $Specific_heap_size = 0;
3224 # if several heap sizes given, take the largest...
3225 } elsif ($heap_size >= $Specific_heap_size) {
3226 $Specific_heap_size = $heap_size;
3228 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n";
3232 /^(-K|Rmax-(stk|stack)size)(.*)/ && do {
3234 local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3);
3235 if ($stk_size =~ /(\d+)[Kk]$/) {
3236 $stk_size = $1 * 1000;
3237 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
3238 $stk_size = $1 * 1000 * 1000;
3239 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
3240 $stk_size = $1 * 1000 * 1000 * 1000;
3242 if ($stk_size <= 0) {
3243 print STDERR "$Pgm: resetting stack-size to zero!!! $stk_size\n";
3244 $Specific_stk_size = 0;
3246 # if several stack sizes given, take the largest...
3247 } elsif ($stk_size >= $Specific_stk_size) {
3248 $Specific_stk_size = $stk_size;
3250 print STDERR "$Pgm: ignoring stack-size-setting option ($flag $stk_size)...not the largest seen\n";
3254 /^-Rgc-stats$/ && do { $CollectingGCstats++;
3255 # the two RTSs do this diff ways; we will try to compensate
3258 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
3260 #---------- C high-level assembler (gcc) -------------------------------
3261 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
3263 # -dgcc-lint is a useful way of making GCC very fussy.
3264 # From alan@spri.levels.unisa.edu.au (Alan Modra).
3265 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
3266 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
3267 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
3269 # inject "#include <wurble>" into the compiler's C output!
3271 /^-#include(.*)/ && do {
3272 local($to_include) = &grab_arg_arg(*Args,'-#include', $1);
3273 push(@CcInjects, "#include $to_include\n");
3276 #---------- Linker (gcc, really) ---------------------------------------
3278 /^-static$/ && do { $Static=1; push(@Ld_flags, $_); next arg; };
3279 /^-no-hs-main$/ && do { $NoHaskellMain=1; next arg; };
3281 #---------- mixed cc and linker magic ----------------------------------
3282 # this optimisation stuff is finally sorted out later on...
3284 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
3286 /^-O[1-2]?$/ && do {
3287 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
3288 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
3290 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
3293 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
3295 /^-Ofile(.*)/ && do {
3297 local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1);
3298 @HsC_minusO3_flags = ();
3300 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
3303 s/\#.*//; # death to comments
3304 s/[ \t]+//g; # death to whitespace
3305 next if /^$/; # ditto, blank lines
3306 s/([()*{}])/\\$1/g; # protect shell metacharacters
3308 push(@CcBoth_flags, $1);
3310 push(@HsC_minusO3_flags, $_);
3316 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
3317 # in the consistency info
3321 #---------- linking .a file --------------------------------------------
3323 /^-Main(.*)/ && do {
3324 # specifies main or mainPrimIO to be linked
3328 #---------- catch unrecognized flags -----------------------------------
3331 print STDERR "$Pgm: unrecognised option: $_\n";
3337 } # end of processArgs