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', "-fsmp -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 $Osuffix;
573 # They're not (currently) needed, but we need to quote any -#include options
574 foreach (@Cmd_opts) {
575 s/-#include.*$/'$&'/g;
577 local($to_do) = "$MkDependHS @MkDependHS_flags @HsSourceCppOpts -- @Cmd_opts -- @Input_file" ;
578 &run_something($to_do, 'Haskell dependencies');
582 # ..or just to construct a (Haskell) DLL.
583 if ( $Status == 0 && $Only_generate_dll && $EnableWin32DLLs ) {
589 # if there are several input files,
590 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
591 # (except if linking, of course)
593 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
594 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
595 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
596 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
597 print STDERR "\tPerhaps the -odir option will do what you want.\n";
602 # check for various pathological -o and -odir combinations...
603 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
604 if ($Specific_output_file eq '-') {
605 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
607 } else { # amalgamate...
608 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
609 # ToDo: check we haven't got a junk name now...
610 $Specific_output_dir = ''; # reset
614 # crash and burn if there were errors
616 print STDERR $ShortUsage;
621 %************************************************************************
623 \section[Driver-post-argv-mangling]{Setup after reading options}
625 %************************************************************************
627 %************************************************************************
629 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
631 %************************************************************************
633 We come now to the default ``wads of options'' that are turned on by
634 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
635 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
638 The user can also specify his/her own list of options in a file; in
639 that case, the work is already done (see stuff about @minusO3@,
642 GHC allows very precise control of what happens during a compilation.
643 Core-to-Core and STG-to-STG passes can be run in any order, as many
644 times as you like. Individual transformations can be turned on or
647 Sadly, however, there are some interdependencies \& Things You Must
648 Not Do. Here is the list.
652 \item[\tr{-fspecialise}:]
653 The specialiser must have dependency-analysed input; but if you run
654 the simplifier to do this, you must not let it toss away unused
655 bindings! (The typechecker conveys some specialisation info via
656 ``unused'' bindings...)
658 \item[\tr{-ffloat-inwards}:]
659 Floating inwards should be done before strictness analysis, because
660 the latter will give better results.
662 \item[\tr{-fstatic-args}:]
663 The static-arguments-transformation pass {\em must} have the
664 simplifier run right after it.
666 \item[\tr{-fcalc-inlinings[12]}:]
667 Not required, but there may be slight gains by re-simplifying after
668 this is done. (You could then \tr{-fcalc-inlinings} again, just for
671 \item[\tr{-ffull-laziness}:]
672 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
673 that's run. (Um, well, howzabout the simplifier just once more...)
678 \item[\tr{-fupdate-analysis}:]
679 It really really wants to be the last STG-to-STG pass that is run.
684 sub setupOptimiseFlags {
686 # this pass-ordering sequence was agreed by Simon and Andr\'e
687 # (WDP 94/07, 94/11).
694 $Oopt_MaxSimplifierIterations,
698 $Oopt_FinalStgProfilingMassage
701 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
705 '-fdo-eta-reduction',
706 '-fdo-lambda-eta-expansion',
710 $Oopt_PedanticBottoms,
712 # initial simplify: mk specialiser happy: minimum effort please
716 '-finline-phase0', # Don't inline anything till full laziness has bitten
717 # In particular, inlining wrappers inhibits floating
718 # e.g. ...(case f x of ...)...
719 # ==> ...(case (case x of I# x# -> fw x#) of ...)...
720 # ==> ...(case x of I# x# -> case fw x# of ...)...
721 # and now the redex (f x) isn't floatable any more
723 '-fno-rules', # Similarly, don't apply any rules until after full laziness
724 # Notably, list fusion can prevent floating.
726 '-fmax-simplifier-iterations2',
729 # Specialisation is best done before full laziness
730 # so that overloaded functions have all their dictionary lambdas manifest
731 ($Oopt_DoSpecialise) ? ( $Oopt_DoSpecialise, ) : (),
737 # # Run the simplifier before specialising, so that overloaded functions
738 # # look like f = \d -> ...
739 # # (Full laziness may lift out something hiding the \d
741 # '-fmax-simplifier-iterations1',
748 # Want to run with inline phase 1 after the specialiser to give
749 # maximum chance for fusion to work before we inline build/augment
750 # in phase 2. This made a difference in 'ansi' where an overloaded
751 # function wasn't inlined till too late.
752 $Oopt_MaxSimplifierIterations,
755 $Oopt_UsageSPInf, # infer usage information here in case we need it later.
756 # (add more of these where you need them --KSW 1999-04)
760 # Need inline-phase2 here so that build/augment get
761 # inlined. I found that spectral/hartel/genfft lost some useful
762 # strictness in the function sumcode' if augment is not inlined
763 # before strictness analysis runs
766 $Oopt_MaxSimplifierIterations,
776 $Oopt_MaxSimplifierIterations,
777 # No -finline-phase: allow all Ids to be inlined now
780 '-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)
786 # We want CSE to follow the final full-laziness pass, because it may
787 # succeed in commoning up things floated out by full laziness.
789 # CSE must immediately follow a simplification pass, because it relies
790 # on the no-shadowing invariant. See comments at the top of CSE.lhs
791 # So it must NOT follow float-inwards, which can give rise to shadowing,
792 # even if its input doesn't have shadows. Hence putting it between
799 # Case-liberation for -O2. This should be after
800 # strictness analysis and the simplification which follows it.
804 # : "-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 ]" ),
808 # Final clean-up simplification:
812 $Oopt_MaxSimplifierIterations,
813 # No -finline-phase: allow all Ids to be inlined now
820 $Oopt_FinalStgProfilingMassage,
826 # SPECIAL FLAGS for -O2
828 '-fupdate-analysis', # virtually useless; relegated to -O2
835 Sort out what we're going to do about optimising. First, the @hsc@
836 flags and regular @cc@ flags to worry about:
838 if ( $OptLevel <= 0 ) {
840 # for this level, we tell the parser -fignore-interface-pragmas
841 push(@HsC_flags, '-fignore-interface-pragmas');
842 # and tell the compiler not to produce them
843 push(@HsC_flags, '-fomit-interface-pragmas');
845 &add_Hsc_flags( @HsC_minusNoO_flags );
846 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
848 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
850 &add_Hsc_flags( @HsC_minusO_flags );
851 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
852 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
853 # but it *is* useful in compiling the garbage collector.
855 } else { # -Ofile, then...
857 &add_Hsc_flags( @HsC_minusO3_flags );
858 push(@HsC_flags, $Oopt_FinalStgProfilingMassage) if $Oopt_FinalStgProfilingMassage;
860 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
863 } # setupOptimiseFlags
867 %************************************************************************
869 \subsection{Check for consistency, etc.}
871 %************************************************************************
873 Sort out @$BuildTag@, @$PROFing@, @$PARing@,
874 @$GRANing@, @$TICKYing@, @UNREGing@:
876 sub setupBuildFlags {
879 # PROFILING stuff after argv mangling:
881 # add -auto sccs even if not profiling !
882 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
885 push(@HsC_flags, $PROFauto) if $PROFauto;
886 push(@HsC_flags, $PROFcaf) if $PROFcaf;
887 push(@HsC_flags, $PROFdict) if $PROFdict;
889 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
891 # Ignore user sccs when auto annotating, but warn when doing so.
892 $PROFignore_scc = '-W' if $PROFauto;
894 #if ( $BuildTag ne '' ) {
895 # local($b) = $BuildDescr{$BuildTag};
896 # if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
897 # if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
898 # if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
900 # # ok to have a user-way profiling build
901 # # eval the profiling opts ... but leave user-way BuildTag
902 # if ($PROFing eq 'p') { &processArgs(split(' ', $SetupOpts{'_p'})); } # eval($EvaldSetupOpts{'_p'}); }
904 if ( $PROFing eq 'p' ) {
905 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
906 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
907 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
910 } elsif ( $PARing eq 'p' ) {
911 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
912 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
915 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
916 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
920 } elsif ( $SMPing eq 's') {
923 } elsif ( $GRANing eq 'g' ) {
924 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
927 } elsif ( $TICKYing eq 't' ) {
930 } elsif ( $UNREGing eq 'u' ) {
931 if ($GhcWithRegisterised eq 'YES') {
937 After the sanity checks, add flags to the necessary parts of the driver pipeline:
940 if ( $BuildTag ne '' ) { # something other than normal sequential...
942 local($Tag) = "${BuildTag}";
943 $Tag =~ s/_//; # move the underscore to the back
945 $HscOut = '-C='; # must go via C
946 &processArgs(split(' ', $SetupOpts{$BuildTag}));
947 # eval($EvaldSetupOpts{$BuildTag});
951 Decide what the consistency-checking options are in force for this run:
954 $HsC_consist_options = "${BuildTag},${DEBUGging}";
955 $Cc_consist_options = "${BuildTag},${DEBUGging}";
958 # Funny place to put it, but why not.
960 if ( $HiSuffix_prelude eq '' ) {
962 if ($CompilingPrelude) {
963 $HiSuffix_prelude = "$HiSuffix" if $CompilingPrelude;
965 local($Tag) = "${BuildTag}";
968 $Tag = "${Tag}_" if $Tag ne '';
969 $HiSuffix_prelude="${Tag}hi";
975 %************************************************************************
977 \subsection{Add on machine-specific C-compiler flags}
979 %************************************************************************
981 Shove on magical machine-specific options. We use \tr{unshift} to
982 stick them on the {\em front} of the arrays, so that ``later''
983 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
985 Note: a few ``always apply'' flags were set at the very beginning.
990 if ($TargetPlatform =~ /^alpha-/) {
991 unshift(@CcBoth_flags, ('-static'));
993 } elsif ($TargetPlatform =~ /^hppa/) {
994 unshift(@CcBoth_flags, ('-static'));
996 # We don't put in '-mlong-calls', because it's only
997 # needed for very big modules (sigh), and we don't want
998 # to hobble ourselves further on all the other modules
1001 # [Dated comment (gcc-2.6.x?), -mlong-calls is no longer
1002 # a supported gcc HPPA flag]
1003 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
1004 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
1005 # (very nice, but too bad the HP /usr/include files don't agree.)
1007 } elsif ($TargetPlatform =~ /^i386-/) {
1008 # -fno-defer-pop : basically the same game as for m68k
1010 # -fomit-frame-pointer : *must* in .hc files; because we're stealing
1011 # the fp (%ebp) for our register maps.
1013 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1014 unshift(@CcRegd_flags_hc, '-fomit-frame-pointer');
1015 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1017 unshift(@CcBoth_flags, ('-DDONT_WANT_WIN32_DLL_SUPPORT')) if ($Static);
1019 } elsif ($TargetPlatform =~ /^m68k-/) {
1020 # -fno-defer-pop : for the .hc files, we want all the pushing/
1021 # popping of args to routines to be explicit; if we let things
1022 # be deferred 'til after an STGJUMP, imminent death is certain!
1024 # -fomit-frame-pointer : *don't*
1025 # It's better to have a6 completely tied up being a frame pointer
1026 # rather than let GCC pick random things to do with it.
1027 # (If we want to steal a6, then we would try to do things
1028 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1030 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1031 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1032 # maybe gives reg alloc a better time
1033 # also: -fno-defer-pop is not sufficiently well-behaved without it
1035 } elsif ($TargetPlatform =~ /^mips-/) {
1036 unshift(@CcBoth_flags, ('-static'));
1038 } elsif ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1039 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1040 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1041 } elsif ($TargetPlatform =~ /^sparc-/) {
1043 } # end of setupMachOpts
1046 %************************************************************************
1048 \subsection{Set up for warnings}
1050 %************************************************************************
1052 Several warnings are turned on by default. These are supposed to be
1053 the 'I'm pretty sure you've made a mistake here' kind of warnings.
1054 The rest are turned on by the -W and -Wall options, or individually
1055 via their -fwarn and -fno-warn flags.
1058 sub setupWarningFlags {
1059 &add_Hsc_flags( @StandardWarnings );
1063 Same unshifting magic, but for special linker flags.
1065 The configure script determines whether the object file symbol tables
1066 have a leading underscore, and sets @LeadingUnderscore@ accordingly.
1067 (The driver script `sees' the setting of the @LeadingUnderscore@
1068 by having the Makefile prepend it).
1072 local($uscore) = ( ${LeadingUnderscore} eq 'YES' ) ? '_' : '';
1075 (($Ld_main) ? ( '-u', "${uscore}Main_" . $Ld_main . '_closure' ) : ()));
1077 # things that are referenced by the RTS - make sure that we pull 'em in
1079 ( '-u', "${uscore}PrelBase_Izh_static_info"
1080 ,'-u', "${uscore}PrelBase_Czh_static_info"
1081 ,'-u', "${uscore}PrelBase_Fzh_static_info"
1082 ,'-u', "${uscore}PrelBase_Dzh_static_info"
1083 ,'-u', "${uscore}PrelAddr_Azh_static_info"
1084 ,'-u', "${uscore}PrelAddr_Wzh_static_info"
1085 ,'-u', "${uscore}PrelAddr_I64zh_static_info"
1086 ,'-u', "${uscore}PrelAddr_W64zh_static_info"
1087 ,'-u', "${uscore}PrelStable_StablePtr_static_info"
1088 ,'-u', "${uscore}PrelBase_Izh_con_info"
1089 ,'-u', "${uscore}PrelBase_Czh_con_info"
1090 ,'-u', "${uscore}PrelBase_Fzh_con_info"
1091 ,'-u', "${uscore}PrelBase_Dzh_con_info"
1092 ,'-u', "${uscore}PrelAddr_Azh_con_info"
1093 ,'-u', "${uscore}PrelAddr_Wzh_con_info"
1094 ,'-u', "${uscore}PrelAddr_I64zh_con_info"
1095 ,'-u', "${uscore}PrelAddr_W64zh_con_info"
1096 ,'-u', "${uscore}PrelStable_StablePtr_con_info"
1097 ,'-u', "${uscore}PrelBase_False_static_closure"
1098 ,'-u', "${uscore}PrelBase_True_static_closure"
1099 ,'-u', "${uscore}PrelPack_unpackCString_closure"
1100 ,'-u', "${uscore}PrelException_stackOverflow_closure"
1101 ,'-u', "${uscore}PrelException_heapOverflow_closure"
1102 ,'-u', "${uscore}PrelException_NonTermination_static_closure"
1104 if (!$NoHaskellMain) {
1105 unshift (@Ld_flags,'-u', "${uscore}PrelMain_mainIO_closure");
1107 if ($PROFing ne '') {
1108 unshift (@Ld_flags,'-u', "${uscore}_regPrelude");
1110 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1111 # sometimes we have lots of toc entries...
1112 # unshift(@Ld_flags, ('-Xlinker -bbigtoc -Xlinker -bnoquiet'));
1113 unshift(@Ld_flags, ('-Xlinker -bbigtoc'));
1117 } # end of setupLinkOpts
1121 %************************************************************************
1123 \subsection{Set up include paths and system-library enslurpment}
1125 %************************************************************************
1127 Now that we know what garbage-collector, etc., are required, we can
1128 finalise our list of libraries to slurp through, and generally Get
1133 # default includes must be added AFTER option processing
1134 if ( ! $INSTALLING ) {
1135 push (@Include_dir, "$TopPwd/${CURRENT_DIR}/${GHC_INCLUDE_DIR}");
1137 push (@Include_dir, "$InstLibDirGhc/includes");
1138 push (@Include_dir, "$InstLibDirGhc/includes");
1140 } # end of setupIncPaths
1145 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1148 foreach $f (@SysLibrary) {
1149 next if $f =~ /_cbits/;
1150 $f .= $BuildTag if $f =~ /^-lHS/;
1153 # Push library HSrts, plus boring clib bit
1154 push(@SysLibrary, "-lHSrts${BuildTag}");
1157 # RTS compiled with cygwin32, uses the WinMM API
1158 # to implement the itimers, since cygwin.dll does not
1159 # support it. Only reqd. for `ways' that use itimers.
1161 push(@SysLibrary, '-lwinmm') if ($TargetPlatform =~ /-(mingw32|cygwin32)$/);
1162 # Note: currently only tested with mingw, may cause conflicts when linking
1164 push(@SysLibrary, '-lwsock32') if ($TargetPlatform =~ /-(mingw32|cygwin32)$/);
1166 # Push the pvm libraries
1167 if ($BuildTag eq '_mp') {
1168 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1169 push(@SysLibrary, "-L$pvmlib", '-lgpvm3', '-lpvm3');
1170 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1171 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1172 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1173 push(@SysLibrary, '-lsocket', '-lnsl');
1177 # Push the GNU multi-precision arith lib; and the math library
1179 # If this machine has GMP already installed, then we'll get the installed
1180 # lib here, because presumably the one in the tree won't have been built.
1182 if ($LibGmp eq 'not-installed') {
1183 push(@SysLibrary, "-lgmp");
1185 push(@SysLibrary, "-l$LibGmp");
1188 push(@SysLibrary, '-lm') if !( $TargetPlatform =~ /^.*(cygwin32|mingw32)$/ );
1191 %************************************************************************
1193 \subsection{Check that this system was built to do what we are asking}
1195 %************************************************************************
1197 Before continuing we check that the appropriate build is available.
1200 #die "$Pgm: no BuildAvail?? $BuildTag\n" if $BuildDescr{$BuildTag} eq '' ; # sanity
1202 if ( $BuildDescr{$BuildTag} eq '' ) {
1203 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1204 "' \"build\" is not available with your GHC setup.\n";
1205 print STDERR "(It was not configured for it at your site.)\n";
1206 print STDERR $ShortUsage;
1210 } # end of setupSyslibs
1214 %************************************************************************
1216 \subsection{Final miscellaneous setup bits before we start going}
1218 %************************************************************************
1220 Record largest specific heapsize, if any.
1222 sub setupHeapStackSize {
1223 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1224 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1225 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1226 push(@HsC_rts_flags, "-K$Specific_stk_size");
1230 If no input or link files seen, then we let 'em feed in stdin; this is
1231 mainly for debugging.
1235 if ($#Input_file < 0 && $#Link_file < 0) {
1236 @Input_file = ( '-' );
1238 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1239 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n" if -t;
1240 while (<STDIN>) { print INF $_; }
1241 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1246 Tell the world who we are, if they asked.
1248 print STDERR "${ProjectName}, version ${ProjectVersion}\n" if $Verbose;
1251 %************************************************************************
1253 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1255 %************************************************************************
1257 Process the input files; don't continue with linking if there are
1258 problems (global variable @$Status@ non-zero).
1260 foreach $ifile (@Input_file) {
1261 &ProcessInputFile($ifile);
1264 # don't link if there were errors...
1265 if ( $Status > 0 ) {
1266 print STDERR $ShortUsage;
1271 # Link if appropriate.
1272 &runLinker() if $Do_lnkr;
1274 # that... that's all, folks!
1276 exit $Status; # will still be 0 if all went well
1279 %************************************************************************
1281 \section[Driver-do-one-file]{How to process a single input file}
1283 %************************************************************************
1286 sub ProcessInputFile {
1287 local($ifile) = @_; # input file name
1288 local($ifile_root); # root of or basename of input file
1289 local($ofile_target); # ultimate output file we hope to produce
1290 # from input file (need to know for recomp
1291 # checking purposes)
1292 local($hifile_target);# ditto (but .hi file)
1293 local($ofile_c_stub_target);
1294 local($ofile_h_stub_target);
1297 Handle the weirdity of input from stdin.
1299 if ($ifile ne '-') {
1300 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1301 $ofile_target = # may be reset later...
1302 ($Specific_output_file ne '' && ! $Do_lnkr)
1303 ? $Specific_output_file
1304 : &odir_ify($ifile_root, 'o');
1305 $hifile_target= ($Specific_hi_file ne '')
1307 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1308 # NB: may change if $ifile_root isn't module name (??)
1309 ($ofile_c_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.c/;
1310 ($ofile_h_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.h/;
1312 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1313 $ifile_root = '_stdin';
1314 $ofile_target = '_stdout'; # gratuitous?
1315 $hifile_target= '_stdout'; # ditto?
1319 We need to decide what phases of the compilation system we will run
1320 over this file. The defaults are the ones established when processing
1321 flags. (That established what the last phase run for all files is.)
1323 We do the pre-recompilation-checker phases here; the rest later.
1327 Look at the suffix and decide what initial phases of compilation may
1328 be dropped off for this file. Also the rather boring business of
1329 which files are coming-in/going-out.
1331 Again, we'll do the post-recompilation-checker parts of this later.
1333 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1334 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1337 # names of the files to stuff between phases
1338 # defaults are temporaries
1339 local($in_lit2pgm) = $ifile;
1340 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1341 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1342 local($hsc_hi) = "$Tmp_prefix.hi";
1343 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1344 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1345 local($as_out) = $ofile_target;
1347 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
1349 # OK, let's strip off some literate junk..
1351 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
1353 $lit2pgm_hscpp = $ifile;
1359 # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas
1360 &check_for_source_options($lit2pgm_hscpp,$ifile);
1362 # Options found in the source file take a back seat, i.e., we scan
1363 # them first. Only process the command line again if source file
1364 # contained anything of interest *or* there's more than one
1365 # input file (we have to reset the options).
1367 if ( $#Input_file >= 0 || $#File_options >= 0) {
1368 #@File_options = (@File_options, @Cmd_opts);
1370 # Now process the command line
1371 &initDriverGlobals();
1372 &processArgs((@File_options,@Cmd_opts));
1373 print STDERR "\nEffective command line: " .
1374 join(' ',(@File_options,@Cmd_opts)) . "\n" if $Verbose;
1377 # Having got the effective command line scanned, set up
1378 # the various options in prep for some real work.
1380 # check the sanity of the BuildTag we're about to use,
1381 # and if needs be, add some more flags and setup to
1382 # the different phases.
1385 &setupOptimiseFlags();
1388 &setupWarningFlags();
1389 &setupHeapStackSize();
1392 # These two variables need to be set after the
1393 # command-line has been processed and the build options
1394 # have be seen set up. This is because command-line options
1395 # can control whether to compile vias C or not.
1397 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1399 : ( ($HscOut eq '-C=') ? 1 : 0 );
1400 local($do_as) = $Do_as;
1401 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1402 local($hsc_out_c_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.c" : "";
1403 local($hsc_out_h_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.h" : "";
1405 if ($Only_preprocess_hc) { # stop after having run $Cc -E
1408 if ($Only_preprocess_C) { # stop after having run $hscpp
1409 $do_hsc=0; $do_cc = 0; $do_as=0;
1410 } elsif ($ifile =~ /.lhs$/ || $ifile =~ /.hs$/ ) {
1412 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
1413 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1415 $hsc_out_c_stub = '';
1416 $hsc_out_h_stub = '';
1417 } elsif ($ifile =~ /\.c$/) {
1418 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1419 $hsc_out = $ifile; $is_hc_file = 0;
1420 $hsc_out_c_stub = '';
1421 $hsc_out_h_stub = '';
1422 } elsif ($ifile =~ /\.[sS]$/) {
1423 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
1425 } else { # don't know what it is, but nothing to do herein...
1426 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
1429 # hack to avoid running hscpp
1430 $HsCpp = $Cat if ! $Cpp_flag_set;
1432 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) if $do_hscpp;
1436 We now think about whether to run hsc/cc or not (when hsc produces .s
1437 stuff, it effectively takes the place of both phases).
1438 To get the output file name right: for each phase that we are {\em
1439 not} going to run, set its input (i.e., the output of its preceding
1440 phase) to @"$ifile_root.<suffix>"@.
1443 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
1446 # Warning issued if -keep-hc-file-too is used without
1447 # -fvia-C (or the equivalent)
1449 if ( $HscOut ne '-C=' && $Keep_hc_file_too ) {
1450 print STDERR "$Pgm: warning: Native code generator to be used, -keep-hc-file-too will be ignored\n";
1453 if (! $do_cc && ! $do_as) { # stopping after hsc
1454 $hsc_out = ($Specific_output_file ne '')
1455 ? $Specific_output_file
1456 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
1458 $ofile_target = $hsc_out; # reset
1461 if (! $do_as) { # stopping after gcc (or hsc)
1462 $cc_as = ($Specific_output_file ne '')
1463 ? $Specific_output_file
1464 : &odir_ify($ifile_root, ( $Only_preprocess_hc ) ? 'i' : 's');
1466 $ofile_target = $cc_as; # reset
1472 Now the Haskell compiler, C compiler, and assembler
1476 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
1477 $ofile_target, $hifile_target,
1478 $going_interactive);
1481 if (-f $hsc_out_h_stub) {
1482 &run_something("cp $hsc_out_h_stub $ofile_h_stub_target", 'Copy foreign export header file');
1485 if (-f $hsc_out_c_stub) {
1486 &run_something("rm -f $ofile_c_stub_target && echo '#include \"${ofile_h_stub_target}\"' > $ofile_c_stub_target && cat $hsc_out_c_stub >> $ofile_c_stub_target", 'Copy foreign export C stubs');
1487 local ($hsc_out_s_stub);
1488 local ($hsc_out_o_stub);
1489 ($ofile_s_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$/\.s/;
1490 ($ofile_o_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$//;
1492 $ofile_o_stub_target = &osuf_ify($ofile_o_stub_target, "o");
1494 &runGcc (0, $ofile_c_stub_target, $ofile_s_stub_target);
1495 &runAs ($ofile_o_stub_target, $ofile_s_stub_target);
1498 # Bring the C stub protos into scope when compiling the .hc file.
1500 push (@CcInjects, "#include \"${hsc_out_h_stub}\"\n");
1501 # Hack - ensure that the stub .h file is included in the OPTIONS section
1502 # if the .hc file is saved.
1503 push (@File_options, "-#include \"${ofile_h_stub_target}\"\n");
1508 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
1509 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root) if ! $Only_preprocess_hc;
1512 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
1514 # save a copy of the .s file..
1515 &saveIntermediate($ifile_root , "s" , $cc_as) if ($do_as && $Keep_s_file_too);
1516 &runAs($as_out, $ifile_root) if $do_as;
1519 Finally, decide what to queue up for linker input.
1521 # tentatively assume we will eventually produce linker input:
1522 push(@Link_file, &odir_ify($ifile_root, 'o'));
1524 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
1526 if ( $ifile !~ /\.(lhs|hs|hc|c|s|a|S)$/ && $ifile !~ /_hc$/ ) {
1527 # There's sometimes confusion regarding .hi files; users
1528 # supplying them on the command line.
1529 if ( $ifile =~ /\.hi$/ ) {
1530 print STDERR "$Pgm: warning: found `$ifile' on command line; interface files should not be supplied here - ignoring it.\n";
1532 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n";
1534 # oops; we tentatively pushed the wrong thing; fix & do the right thing
1535 pop(@Link_file); push(@Link_file, $ifile);
1539 } # end of ProcessInputFile
1542 %************************************************************************
1544 \section[Driver-run-phases]{Routines to run the various phases}
1546 %************************************************************************
1550 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
1554 # Only add #line pragma if we're going to need it.
1555 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && " if ($Cpp_flag_set);
1556 $to_do .= "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
1558 push(@Files_to_tidy, $lit2pgm_hscpp );
1560 &run_something($to_do, 'literate pre-processor');
1566 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
1570 # Strictly speaking, echoing of the following line pragma is only required
1571 # on non-delit'ed input, as we've already added it during de-lit. However,
1572 # hscpp will then add a {-# LINE 1 "$lit2pgm_hsc" -} to the top of the file,
1573 # which is not very informative (but harmless). Hence, we uniformly have
1574 # {-# LINE 1 "$in_lit2pgm" #-} as the first line to all cpp'ed hsc input.
1576 $to_do = "echo '{-# LINE 1 \"$in_lit2pgm\" -}' > $hscpp_hsc && ";
1578 if ($HsCpp eq $Cat) {
1579 $to_do .= "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
1580 push(@Files_to_tidy, $hscpp_hsc );
1581 &run_something($to_do, 'Ineffective C pre-processor');
1583 local($includes) = '-I' . join(' -I',@Include_dir);
1584 $to_do .= "$HsCpp $Verbose @HsCpp_flags @HsSourceCppOpts $includes $lit2pgm_hscpp >> $hscpp_hsc";
1585 push(@Files_to_tidy, $hscpp_hsc );
1586 &run_something($to_do, 'Haskellised C pre-processor');
1589 if ( $Only_preprocess_C ) {
1590 $to_do = "$Cat $hscpp_hsc";
1591 &run_something($to_do, '');
1599 sub runHscAndProcessInterfaces {
1600 local($ifile, $hscpp_hsc, $ifile_root,
1601 $ofile_target, $hifile_target,
1602 $going_interactive) = @_;
1604 # $ifile is the original input file
1605 # $hscpp_hsc post-unlit, post-cpp, etc., input file
1606 # $ifile_root input filename minus suffix
1607 # $ofile_target the output file that we ultimately hope to produce
1608 # $hifile_target the .hi file ... (ditto)
1610 local($source_unchanged) = 1;
1612 # Check if the source file is up to date relative to the target; in
1613 # that case we say "source is unchanged" and let the compiler bail out
1614 # early if the import usage information allows it.
1616 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
1617 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
1619 # The informational messages below are now conditional on -v being set -- SOF
1620 if ( $ofile_target ne "_stdin.s" && ! -f $ofile_target ) {
1621 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n" if $Verbose;
1622 $source_unchanged = 0;
1625 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
1626 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
1628 if ( $hifile_target ne "_stdout" && ! -f $hifile_target ) {
1629 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n" if $Verbose;
1630 $source_unchanged = 0;
1633 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
1634 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
1636 if ( $ofile_target ne "_stdin.s" && $i_mtime > $o_mtime) {
1637 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n" if $Verbose;
1638 $source_unchanged = 0;
1641 # Tell the compiler which version we're using
1642 push(@HsC_flags, "-fhi-version=${ProjectVersionInt}");
1644 # So if source_unchanged is still "1", we pass on the good news to the compiler
1645 # The -recomp flag can disable this, forcing recompilation
1646 if ($Do_recomp_chkr && $source_unchanged) {
1647 push(@HsC_flags, '-fsource-unchanged');
1650 # Indicate whether we're static or not.
1651 # This will only ever
1652 push(@HsC_flags, '-static') if $Static;
1656 &runHsc($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive);
1658 # See if it bailed out early, saying nothing needed doing.
1659 # We work this out by seeing if it created an output .hi file
1661 if ( ! -f $hsc_hi && $ProduceHi !~ /-nohifile=/ ) {
1662 # Doesn't exist, so we bailed out early.
1663 # Tell the C compiler and assembler not to run
1664 $do_cc = 0; $do_as = 0;
1666 # Update dependency info, touch both object file and
1667 # interface file, so that the following invariant is
1670 # a dependent module's interface file should after recompilation
1671 # checking be newer than the interface files of its imports.
1673 # That is, if module A's interface file changes, then module B
1674 # (which import from A) needs to be checked.
1675 # If A's change does not affect B, which causes the compiler to bail
1676 # out early, we still need to touch the interface file of B. The reason
1677 # for this is that B may export A's interface.
1679 &run_something("touch $ofile_target",
1680 "Touch $ofile_target, to propagate dependencies") if $HscOut ne '-N=';
1681 &run_something("touch $hifile_target",
1682 "Touch $hifile_target, to propagate dependencies") if $ProduceHi =~ /-nohifile=/ ;
1686 # Didn't bail out early (new .hi file) so we thunder on
1688 # If non-interactive, heave in the consistency info at the end
1689 # NB: pretty hackish (depends on how $output is set)
1690 if ( ! $going_interactive ) {
1691 if ( $HscOut eq '-C=' ) {
1692 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
1694 } elsif ( $HscOut eq '-S=' ) {
1695 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
1696 $consist =~ s/,/./g;
1697 $consist =~ s/\//./g;
1698 $consist =~ s/-/_/g;
1699 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
1700 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
1702 &run_something($to_do, 'Pin on Haskell consistency info');
1706 # Interface-handling is important enough to live off by itself
1707 if ( $ProduceHi !~ /-nohifile=/ ) { # If we've produced one, process it.
1708 require('ghc-iface.prl') || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
1709 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
1711 # if we're going to split up object files,
1712 # we inject split markers into the .hc file now
1713 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
1714 &inject_split_markers ( $hsc_out );
1717 # save a copy of the .hc file, even if we are carrying on...
1718 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
1719 &saveIntermediate($ifile_root , "hc" , $hsc_out);
1729 local($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive) = @_;
1731 &makeHiMap() unless $HiMapDone;
1732 push(@HsC_flags, "\"-himap=$HiIncludeString\"");
1733 push(@HsC_flags, "\"-himap-sep=${SplitMarker}\"");
1735 # here, we may produce .hc/.s and/or .hi files
1736 local($output) = '';
1737 #@Files_to_tidy = ();
1739 if ( $going_interactive ) {
1740 # don't need .hi unless we're going to show it on stdout:
1741 $ProduceHi = '-nohifile=' if ! ($HiOnStdout || $Specific_hi_file ne '' );
1742 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
1745 # set up for producing output/.hi; note that flag twiddling
1746 # may mean that nothing will actually be produced:
1747 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out -F=$hsc_out_c_stub -FH=$hsc_out_h_stub";
1748 push(@Files_to_tidy, $hsc_hi, $hsc_out, $hsc_out_c_stub, $hsc_out_h_stub );
1750 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
1751 if ( $CollectingGCstats ) {
1752 push(@HsC_rts_flags, "-S$ifile_root.stat");
1753 push(@Files_to_tidy, "$ifile_root.stat");
1756 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
1757 # emit nofibbish time/bytes-alloc stats to stderr;
1758 # see later .stat file post-processing
1759 print STDERR "warning: both -Rgc-stats and -Rghc-timing used, -Rghc-timing wins." if $CollectingGCstats;
1760 push(@HsC_rts_flags, "-S$Tmp_prefix.stat");
1761 push(@Files_to_tidy, "$Tmp_prefix.stat");
1765 if ($Specific_dump_file ne '') {
1766 $dump = "2>> $Specific_dump_file";
1767 $Using_dump_file = 1;
1771 # Win32 only: If the command processor used by system()
1772 # exec()s the application as an ordinary Win32 executable,
1773 # we're in trouble here, since the command line is likely
1774 # to be > 255 chars long. To work around this situation,
1775 # $HsC also understands `at-files', i.e., `@file' on the
1776 # command line will cause $HsC to add the contents of `file'
1777 # to the command line.
1779 # [ Note: support for `at-files' is not compiled in by default ]
1780 $cmd_line_opts_via_at_file=0;
1781 if ($cmd_line_opts_via_at_file) {
1783 local($to_do_opts) = "$Tmp_prefix.opts";
1784 open(OPTS, "> $Tmp_prefix.opts") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.opts\n");
1785 print OPTS "$dump @HsC_flags $CoreLint $USPLint $StgLint $Verbose";
1787 $to_do = "$HsC $hscpp_hsc \@$Tmp_prefix.opts $output +RTS @HsC_rts_flags";
1791 $to_do = "$HsC $hscpp_hsc $dump @HsC_flags $CoreLint $USPLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
1793 &run_something($to_do, 'Haskell compiler');
1795 # finish business w/ nofibbish time/bytes-alloc stats
1796 &process_ghc_timings() if $CollectGhcTimings;
1800 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
1801 of (module-name, pathname) pairs, one per line, separated by a space.
1804 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1808 # collect in %HiMap; write later; also used elsewhere in driver
1810 local($mod, $path, $d, $e);
1812 # reset the global variables:
1814 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1816 foreach $d ( @Import_dir ) {
1817 if ($HiIncludeString) {
1818 $HiIncludeString = "$HiIncludeString${SplitMarker}${d}%.${HiSuffix}";
1820 $HiIncludeString = "$d%.${HiSuffix}";
1825 foreach $d ( @SysImport_dir ) {
1826 if ($HiIncludeString) {
1827 $HiIncludeString = "$HiIncludeString${SplitMarker}${d}%.${HiSuffix_prelude}";
1829 $HiIncludeString = "${d}%.${HiSuffix_prelude}";
1838 Invoke the 'linker' - either the standard linker or the one used to build
1844 local($libdirs) = '';
1846 # append last minute flags linker and consistency flags
1851 # glue them together:
1852 push(@UserLibrary_dir, @SysLibrary_dir);
1854 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1856 # for a linker, use an explicitly given one, or the going C compiler ...
1857 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1859 if ( ($Specific_output_file eq '') &&
1860 ($TargetPlatform eq 'i386-unknown-cygwin32') ) {
1861 $Specific_output_file = 'main.exe';
1862 print STDERR "Output file not specified, defaulting to \"main.exe\"\n";
1865 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1866 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1868 &prepareWin32DllLink(1);
1870 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $libdirs @UserLibrary @SysLibrary";
1871 &run_something($to_do, 'Linker');
1873 # finally, check the consistency info in the binary
1874 local($executable) = $Files_to_tidy[0];
1875 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1878 # dynamically load consistency-chking code; then do it.
1879 require('ghc-consist.prl')
1880 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1882 &chk_consistency_info ( $executable );
1885 # if PVM parallel stuff, we do truly weird things.
1886 # Essentially: (1) move the executable over to where PVM expects
1887 # to find it. (2) create a script in place of the executable
1888 # which will cause the program to be run, via SysMan.
1889 if ( $PARing eq 'p' ) {
1890 local($pvm_executable) = $executable;
1891 local($pvm_executable_base);
1893 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1894 local($pwd) = `pwd`;
1896 $pwd =~ s/^\/tmp_mnt//;
1897 $pvm_executable = "$pwd/$pvm_executable";
1900 $pvm_executable =~ s|/|=|g; # make /s into =s
1901 $pvm_executable_base = $pvm_executable;
1903 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1904 . "/$pvm_executable";
1906 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1908 # OK, now create the magic script for "$executable"
1909 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1910 print EXEC <<EOSCRIPT1;
1911 eval 'exec perl -S \$0 \${1+"\$@"}'
1912 if \$running_under_some_shell;
1913 # =!=!=!=!=!=!=!=!=!=!=!
1914 # This script is automatically generated: DO NOT EDIT!!!
1915 # Generated by Glasgow Haskell, version ${ProjectVersion}
1917 \$pvm_executable = '$pvm_executable';
1918 \$pvm_executable_base = '$pvm_executable_base';
1919 \$SysMan = '$SysMan';
1922 print EXEC <<\EOSCRIPT2;
1923 # first, some magical shortcuts to run "commands" on the binary
1925 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1927 system("$cmd $pvm_executable");
1931 # OK, really run it; process the args first
1932 $ENV{'PE'} = $pvm_executable_base;
1934 $nprocessors = 2; # the default
1938 # ToDo: handle --RTS
1939 args: while ($a = shift(@ARGV)) {
1940 if ( $a eq '+RTS' ) {
1942 } elsif ( $a eq '-RTS' ) {
1945 if ( $a eq '-d' && $in_RTS_args ) {
1947 } elsif ( $a =~ /^-N(\d+)/ && $in_RTS_args ) {
1950 push(@nonPVM_args, $a);
1954 local($return_val) = 0;
1955 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
1957 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
1960 close(EXEC) || die "Failed closing $executable\n";
1961 chmod 0755, $executable;
1969 # append last minute flags linker and consistency flags
1974 # glue them together:
1975 push(@UserLibrary_dir, @SysLibrary_dir);
1977 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1979 &prepareWin32DllLink(0);
1981 local ($bld_dll) = "dllwrap";
1983 local ($output) = ($Specific_output_file ne '') ? "$Specific_output_file" : 'HSdll.dll';
1984 local ($output_dir);
1985 local ($output_file);
1986 local ($output_lib, $output_def);
1988 ($output_dir = $output) =~ s|(.*/)[^/]+$|$1|;
1989 $output_dir = "" if ($output_dir eq $output);
1990 ($output_file = $output) =~ s|.*/([^/]+)$|$1|;
1992 ($output_lib = $output_file) =~ s|(.+)\.[^\.]*$|${output_dir}lib$1_imp.a|;
1993 ($output_def = $output_file) =~ s|(.+)\.[^\.]*$|${output_dir}$1.def|;
1995 push (@Dll_flags, "-mno-cygwin --target=i386-mingw32") if ($TargetPlatform =~ /^.*mingw32$/);
1996 push (@Dll_flags, "--output-lib $output_lib");
1997 # If the "--def " option hasn't been supplied, assume everything
1998 # is going to be exported via the DLL.."
1999 if (!grep(/--def/, @Dll_flags)) {
2000 push (@Dll_flags, "--export-all --output-def $output_def");
2003 local($to_do) = "$bld_dll @Dll_flags -o $output @Link_file $libdirs @UserLibrary @SysLibrary";
2004 # Make sure the user sees this piece of magic.
2005 print STDERR "$to_do\n" if (!$Verbose);
2006 &run_something($to_do, 'DLL creator');
2009 sub prepareWin32DllLink
2011 local($linking_main) = @_;
2014 # Win32 DLLs - link with import libraries, not the real archives.
2016 if ( $TargetPlatform =~ /-mingw32$/ ) {
2019 # If the libraries have the form libHSfoo.a, we
2020 # transform that into libHSfoo_imp.a - the import
2021 # library of the DLL.
2023 foreach $a ( @SysLibrary ) {
2024 $a = "${a}_imp" if ($a =~ /^-lHS/);
2026 foreach $a ( @UserLibrary ) {
2027 $a = "${a}_imp" if ($a =~ /^-lHS/);
2029 push(@Link_file, ( $INSTALLING ) ? "$InstLibDirGhc/Main.dll_o"
2030 : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/Main.dll_o") if $linking_main;
2031 push(@Link_file, ( $INSTALLING ) ? "$InstLibDirGhc/PrelMain.dll_o"
2032 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std/PrelMain.dll_o") if $linking_main;
2034 push(@Ld_flags, "-mno-cygwin");
2040 %************************************************************************
2042 \section[Driver-misc-utils]{Miscellaneous utilities}
2044 %************************************************************************
2046 %************************************************************************
2048 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
2050 %************************************************************************
2054 local($ofile,$def_suffix) = @_;
2056 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
2060 local($orig_file, $def_suffix) = @_;
2061 if ($Specific_output_dir eq '') { # do nothing
2062 &osuf_ify($orig_file, $def_suffix);
2064 local ($orig_file_only);
2065 ($orig_file_only = $orig_file) =~ s|.*/||;
2066 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
2073 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
2075 local($includes) = '-I' . join(' -I', @Include_dir);
2078 local($c_flags) = "@CcBoth_flags";
2079 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2081 $c_flags .= " -mno-cygwin" if ( $TargetPlatform =~ /-mingw32$/ );
2083 # "input" files to use that are not in some weird directory;
2084 # to help C compilers grok .hc files [ToDo: de-hackify]
2085 local($cc_help) = "ghc$$.c";
2086 local($cc_help_s) = "ghc$$.s";
2089 $s_output = (($is_hc_file && $DoAsmMangling) || $TargetPlatform =~ /^(powerpc|rs6000|hppa)/) ? $cc_as_o : $cc_as;
2090 $c_flags .= " @CcRegd_flags";
2091 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2093 # C compiler won't like the .hc extension. So we create
2094 # a tmp .c file which #include's the needful.
2095 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2096 if ( $is_hc_file ) {
2100 # user may have asked for #includes to be injected...
2101 print TMP @CcInjects if $#CcInjects >= 0;
2103 # Straight .c files may want to know that they're being used
2104 # with a particular version of GHC, so we define __GLASGOW_HASKELL__ for their benefit.
2105 print TMP "#define __GLASGOW_HASKELL__ ${ProjectVersionInt}\n";
2107 # heave in the consistency info
2108 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2110 print TMP "#include \"$hsc_out\"\n";
2111 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2113 # Don't redirect stderr into intermediate file if slamming output onto stdout (e.g., with -E)
2114 local($fuse_stderr) = "2>&1" if ! $Only_preprocess_hc;
2115 local($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 )";
2117 if ( $Only_preprocess_hc ) { # HACK ALERT!
2118 $to_do =~ s/ -S\b//g;
2120 push(@Files_to_tidy, $cc_help, $cc_help_s, $s_output );
2121 $PostprocessCcOutput = 1 if ! $Only_preprocess_hc; # hack, dear hack...
2122 &run_something($to_do, 'C compiler');
2123 $PostprocessCcOutput = 0;
2124 if ( $Only_preprocess_hc ) {
2125 system("$Cat $Tmp_prefix.ccout");
2127 unlink($cc_help, $cc_help_s);
2133 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2135 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2137 if ($is_hc_file && $DoAsmMangling) {
2138 # dynamically load assembler-fiddling code, which we are about to use:
2139 require('ghc-asm.prl')
2140 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2141 # post-process the assembler [.hc files only]
2142 &mangle_asm($cc_as_o, $cc_as);
2144 } elsif ($TargetPlatform =~ /^hppa/) {
2145 # minor mangling of non-threaded files for hp-pa only
2146 require('ghc-asm.prl')
2147 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2148 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2150 } elsif ($TargetPlatform =~ /^powerpc|^rs6000/) {
2151 # minor mangling of non-threaded files for powerpcs and rs6000s
2152 require('ghc-asm.prl')
2153 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-powerpc.prl!\n");
2154 &mini_mangle_asm_powerpc($cc_as_o, $cc_as);
2157 # save a copy of the .s file, even if we are carrying on...
2158 #if ($do_as && $Keep_s_file_too) {
2159 # &saveIntermediate($ifile_root , "s" , $cc_as);
2166 local($as_out, $ifile_root) = @_;
2168 local($asmblr) = ( $As ) ? $As : $CcRegd;
2170 # need to add the -I flags in case the file is going through cpp (.S files)
2171 local($includes) = '-I' . join(' -I', @Include_dir);
2173 if ( ! $SplitObjFiles ) {
2174 local($to_do) = "$asmblr -o $as_out -c @As_flags $includes $cc_as";
2175 push(@Files_to_tidy, $as_out );
2176 &run_something($to_do, 'Unix assembler');
2178 } else { # more complicated split-ification...
2180 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2182 # If -odir is used, great, just pin it in front of the
2183 # generated split file names. If it hasn't been set, we
2184 # snatch it from the ifile_root.
2188 if ( $Specific_output_dir eq '' ) {
2189 $Specific_output_dir = ${ifile_root};
2192 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2193 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2194 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2195 push(@Files_to_tidy, $split_out );
2197 &run_something($to_do, 'Unix assembler');
2203 %************************************************************************
2205 \subsection[Driver-run-something]{@run_something@: Run a phase}
2207 %************************************************************************
2211 local($str_to_do, $tidy_name) = @_;
2213 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2214 print STDERR "$str_to_do\n" if $Verbose;
2216 if ($Using_dump_file) {
2217 open(DUMP, ">> $Specific_dump_file")
2218 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2219 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2221 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2224 local($return_val) = 0;
2226 if ( length($str_to_do) > 4000) {
2227 # 4000 - on the random side, just like the *real* ARG_MAX
2230 # With some shells, command lines of this length may
2231 # very well cause trouble. To safeguard against this, we squirrel the
2232 # command into a file and exec that.
2233 local ($sh) = $ENV{'REAL_SHELL'};
2234 print STDERR "Backup plan A: saving cmd line in ${Tmp_prefix}.sh and executing that with $sh\n" if $Verbose;
2235 open (TEMP, "> ${Tmp_prefix}.sh") ||
2236 &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.sh'\n");
2237 print TEMP "$Time $str_to_do\n";
2239 &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.sh'\n");
2240 system("$sh $Tmp_prefix.sh");
2243 unlink "${Tmp_prefix}.sh";
2245 system("$Time $str_to_do");
2249 if ( $PostprocessCcOutput ) { # hack, continued
2250 open(CCOUT, "< $Tmp_prefix.ccout")
2251 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2253 next if /call-clobbered/;
2254 next if /control reaches end/;
2255 next if /from .*Stg\.h:/;
2256 next if /from ghc\d+.c:\d+:/;
2257 next if /: At top level:$/;
2258 next if /: In function \`.*\':$/;
2259 next if /\`ghc_cc_ID\' defined but not used/;
2262 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2265 if ($return_val != 0) {
2266 if ($Using_dump_file) {
2267 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2269 &tidy_up_and_die($return_val, '');
2271 $Using_dump_file = 0;
2275 %************************************************************************
2277 \subsection[Driver-ghc-timing]{Emit nofibbish GHC timings}
2279 %************************************************************************
2281 NB: nearly the same as in @runstdtest@ script.
2284 sub process_ghc_timings {
2285 local($StatsFile) = "$Tmp_prefix.stat";
2286 local($SysSpecificTiming) = 'ghc';
2288 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2289 local($max_live) = 0;
2290 local($tot_live) = 0; # for calculating residency stuff
2291 local($tot_samples) = 0;
2294 if (! /Gen:\s+0/ && ! /Minor/ && /^\s*\d+\s+\d+\s+(\d+)\s+\d+\.\d+/ ) {
2295 $max_live = $1 if $max_live < $1;
2299 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2301 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2302 $MaxResidency = $1; $ResidencySamples = $2;
2305 $GCs = $1 if /^\s*([0-9,]+) (collections? in generation 0|garbage collections? performed)/;
2307 if ( /^\s+([0-9]+)\s+Mb total memory/ ) {
2311 # The presence of -? in the following pattern is only there to
2312 # accommodate 0.29 && <= 2.05 RTS'
2313 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*-?(\d+\.\d\d)s elapsed\)/ ) {
2314 $InitTime = $1; $InitElapsed = $2;
2315 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2316 $MutTime = $1; $MutElapsed = $2;
2317 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2318 $GcTime = $1; $GcElapsed = $2;
2321 close(STATS) || die "Failed when closing $StatsFile\n";
2322 if ( $tot_samples > 0 ) {
2323 $ResidencySamples = $tot_samples;
2324 $MaxResidency = $max_live;
2325 $AvgResidency = int ($tot_live / $tot_samples) ;
2328 # warn about what we didn't find
2329 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2330 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2331 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2332 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2333 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2334 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2335 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2336 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2338 # things we didn't necessarily expect to find
2339 $MaxResidency = 0 unless defined($MaxResidency);
2340 $AvgResidency = 0 unless defined($AvgResidency);
2341 $ResidencySamples = 0 unless defined($ResidencySamples);
2344 $BytesAlloc =~ s/,//g;
2345 $MaxResidency =~ s/,//g;
2347 $InitTime =~ s/,//g;
2348 $InitElapsed =~ s/,//g;
2350 $MutElapsed =~ s/,//g;
2352 $GcElapsed =~ s/,//g;
2354 # print out what we found
2355 print STDERR "<<$SysSpecificTiming: ",
2356 "$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)",
2357 " :$SysSpecificTiming>>\n";
2364 %************************************************************************
2366 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2368 %************************************************************************
2372 local($to_do) = "\n$Rm $Tmp_prefix*";
2373 if ( $Tmp_prefix !~ /^\s*$/ ) {
2374 print STDERR "$to_do\n" if $Verbose;
2379 sub tidy_up_and_die {
2380 local($return_val, $msg) = @_;
2382 # delete any files to tidy
2383 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2384 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2388 exit (($return_val == 0) ? 0 : 1);
2392 %************************************************************************
2394 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2396 %************************************************************************
2398 Some command-line arguments take an argument, e.g.,
2399 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2400 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2401 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2403 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2404 gobble the second argument (and probably set the heapsize to something
2408 local(*Args, $option, $rest_of_arg) = @_;
2410 if ($rest_of_arg ne '') {
2411 return($rest_of_arg);
2412 } elsif ($#Args >= 0) {
2413 local($temp) = $Args[0]; shift(@Args);
2416 print STDERR "$Pgm: no argument following $option option\n";
2427 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2429 foreach $f ( @HsC_antiflags ) {
2430 return(0) if $flag eq $f;
2432 # foreach $f ( @HsC_flags ) {
2433 # return(0) if $flag eq $f;
2438 sub squashHscFlag { # pretty terrible
2442 foreach $f ( @HsC_flags ) {
2443 if ($flag eq $f) { $f = ''; }
2451 foreach $f ( @flags ) {
2452 push( @HsC_flags, $f ) if &isntAntiFlag($f);
2457 To add another system library, you'll need to augment the
2458 Supported_syslibs variable with name and info on your addition
2459 to the syslib family. The info bit consist of the following:
2461 - interface file directory
2462 see the misc or posix entry for how to distinguish
2463 between using installed and build tree directories.
2465 - directory location of archives
2467 - location of (way-independent) C support libs.
2468 not all libraries need this - if you don't, just
2469 give the empty string.
2470 - list of syslibs you depend on.
2472 - additional ghc command line flags that should be used.
2473 - additional C compiler command line flags that should be used.
2479 # Hash to keep track of
2480 %Syslibs_added = ();
2483 local($syslib) = @_;
2485 # Lifting this out of this sub brings it out of scope - why??
2486 %Supported_syslibs =
2488 [ # where to slurp interface files from
2490 ? "$InstLibDirGhc/imports/exts"
2491 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/exts"
2493 , # where to find the archive to use when linking
2496 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/exts"
2499 , '' # Syslib dependencies
2500 , '' # extra ghc opts
2501 , '' # extra cc opts
2502 , '' # extra ld opts
2506 [ # where to slurp interface files from
2508 ? "$InstLibDirGhc/imports/misc"
2509 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc"
2511 , # where to find the archive to use when linking
2514 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc"
2516 , # where to find the cbits archive to use when linking
2519 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc/cbits"
2521 , 'exts concurrent' # Syslib dependencies
2522 , '' # extra ghc opts
2523 , '' # extra cc opts
2524 , ( $TargetPlatform =~ /-solaris2$/ ? '-lnsl -lsocket' : '')
2527 [ # where to slurp interface files from
2529 ? "$InstLibDirGhc/imports/hbc"
2530 : "$TopPwd/CONTRIB/libraries/hbc/src"
2532 , # where to find the archive to use when linking
2535 : "$TopPwd/CONTRIB/libraries/src/hbc"
2537 , # where to find the cbits archive to use when linking
2540 : "$TopPwd/CONTRIB/libraries/hbc/cbits"
2542 , 'exts' # Syslib dependencies
2543 , '' # extra ghc opts
2544 , '' # extra cc opts
2548 [ # where to slurp interface files from
2550 ? "$InstLibDirGhc/imports/posix"
2551 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix"
2553 , # where to find the archive to use when linking
2556 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix"
2558 , # where to find the cbits archive to use when linking
2561 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix/cbits"
2563 , 'misc' # Syslib dependencies
2564 , '' # extra ghc opts
2565 , '' # extra cc opts
2566 , '' # extra ld opts
2569 [ # where to slurp interface files from
2571 ? "$InstLibDirGhc/imports/concurrent"
2572 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent"
2574 , # where to find the archive to use when linking
2577 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent"
2579 , '' # where to find the cbits archive to use when linking
2580 , '' # Syslib dependencies
2581 , '' # extra ghc opts
2582 , '' # extra cc opts
2583 , '' # extra ld opts
2586 [ # where to slurp interface files from
2588 ? "$InstLibDirGhc/imports/win32"
2589 : "$TopPwd/hslibs/win32/src"
2591 , # where to find the archive to use when linking
2594 : "$TopPwd/hslibs/win32/src"
2597 , 'exts' # Syslib dependencies
2598 , '' # extra ghc opts
2599 , '' # extra cc opts
2600 , '-luser32 -lgdi32' # extra ld opts
2603 [ # where to slurp interface files from
2605 ? "$InstLibDirGhc/imports/com"
2606 : "$TopPwd/hdirect/lib"
2608 , # where to find the archive to use when linking
2611 : "$TopPwd/hdirect/lib"
2614 , 'exts' # Syslib dependencies
2615 , '' # extra ghc opts
2616 , '' # extra cc opts
2617 , '-luser32 -lole32 -loleaut32 -ladvapi32'
2622 # check if it's supported..
2624 if ( !exists $Supported_syslibs{$syslib} ) {
2625 print STDERR "$Pgm: no such system library (-syslib): $syslib\n";
2630 # This check is here to avoid syslib loops from
2631 # spoiling the party. A side-effect of it is that
2632 # it disallows multiple mentions of a syslib on a command-line,
2633 # explicit *and* implicit ones (i.e., "-syslib exts -syslib misc"
2634 # is not equal to "-syslib exts -syslib misc -syslib exts",
2635 # which it needs to be)
2637 # Since our current collection of syslibs don't have any
2638 # loops, this test is disabled.
2640 # ToDo: loop avoidance scheme when the need arises
2642 #return if ( exists $Syslibs_added{$syslib} );
2644 $Syslibs_added{$syslib} = 1;
2646 local ($hi_dir, $lib_dir, $lib_cbits_dir,
2647 $syslib_deps, $syslib_ghc_opts,
2648 $syslib_cc_opts, $syslib_ld_opts) = @{ $Supported_syslibs{$syslib} };
2651 unshift(@SysImport_dir, $hi_dir);
2652 push(@SysLibrary_dir, $lib_dir);
2653 push(@SysLibrary_dir, $lib_cbits_dir) if ( $lib_cbits_dir ne '');
2655 push(@SysLibrary, "-lHS$syslib");
2656 push(@SysLibrary, "-lHS${syslib}_cbits") if ( $lib_cbits_dir ne '');
2657 push(@SysLibrary, $syslib_ld_opts) if ($syslib_ld_opts ne '');
2659 # Add on any extra dependencies.
2660 foreach $lib (split(' ',$syslib_deps)) {
2666 Source files may have {-# OPTIONS ... #-} pragmas at the top, containing
2667 command line options we want to append to collection of commands specified
2668 directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell
2669 file for any such pragmas:
2672 sub check_for_source_options {
2673 local($file,$ifile) = @_;
2674 local($comment_start,$comment_end);
2676 if ($ifile =~ /\.hc$/ ||
2679 $ifile =~ /_s$/ ) { # `Real' C intermediate
2680 $comment_start = "/\\*";
2681 $comment_end = "\\*/";
2682 } else { # Assume it is a file containing Haskell source
2683 $comment_start = "{-#";
2684 $comment_end = "#-}";
2687 open(FILE,$file) || return(1); # No big loss
2690 if ( /^${comment_start} OPTIONS (.*)${comment_end}/ ) {
2691 # add the options found at the back of the command line.
2692 local(@entries) = split(/\s+/,$1);
2693 print STDERR "Found OPTIONS " . join(' ',@entries) . " in $file\n" if $Verbose;
2694 push(@File_options, @entries);
2696 elsif ( /^$/ ) { # ignore empty lines
2699 elsif ( /^#line.+$/ ) { # ignore comment lines (unused..ToDo: rm )
2702 elsif ( /^{-# LINE.+$/ ) { # ignore line pragmas
2705 else { # stop looking, something non-empty / not
2706 # ${comment_start} OPTIONS .. ${comment_end} encountered.
2707 close(FILE);return(0);
2716 We split the initial argv up into three arrays:
2722 the reason for doing so is to be able to deal
2723 with {-# OPTIONS #-} pragma in source files properly.
2729 arg: while($_ = $args[0]) {
2731 # sigh, we have to deal with these -option arg specially here.
2732 /^-(tmpdir|odir|ohi|o|isuf|osuf|hisuf|odump|syslib)$/ &&
2733 do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; };
2734 /^--?./ && do { push(@Cmd_opts, $_); next arg; };
2736 if (/\.([^_]+_)?[oa]$/) {
2737 push(@Link_file, $_);
2739 push(@Input_file, $_);
2742 # input files must exist:
2744 print STDERR "$Pgm: input file doesn't exist: $_\n";
2752 When saving an intermediate file (.hc or .s) away, we
2753 have to prefix any OPTIONS found in the original source file.
2756 sub saveIntermediate {
2757 local ($final,$suffix,$tmp)= @_ ;
2760 # $final -- root of where to park ${final}.${suffix}
2761 # $tmp -- temporary file where hsc put the intermediate file.
2763 # Delete the old file
2764 $to_do = "$Rm ${final}.${suffix}"; &run_something($to_do, "Removing old .${suffix} file");
2766 if ( $#File_options >= 0 ) { # OPTIONS found in Haskell source unit
2767 # Add OPTION comment to the top of the generated .${suffix} file
2768 open(TEMP, "> ${final}.${suffix}") || &tidy_up_and_die(1,"Can't open ${final}.${suffix}\n");
2769 print TEMP "/* OPTIONS " . join(' ',@File_options) . " */\n";
2771 print STDERR "Prepending OPTIONS: " . join(' ',@File_options) . " to ${final}.${suffix}\n" if $Verbose;
2773 $to_do = "$Cat $tmp >> ${final}.${suffix}";
2774 &run_something($to_do, "Saving copy of .${suffix} file");
2781 Command-line processor
2787 # can't use getopt(s); what we want is too complicated
2789 arg: while($_ = $Args[0]) {
2792 #---------- help -------------------------------------------------------
2793 if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; }
2795 #-----------version ----------------------------------------------------
2796 /^--version$/ && do { print STDERR "${ProjectName}, version ${ProjectVersion}\n"; exit $Status; };
2798 #---------- verbosity and such -----------------------------------------
2799 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
2801 #---------- what phases are to be run ----------------------------------
2802 /^-(no-)?recomp/ && do { $Do_recomp_chkr = ($1 eq '') ? 1 : 0; next arg; };
2804 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
2805 # change the global default:
2806 # we won't run cat; we'll run the real thing
2808 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
2810 # stop after generating C
2812 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
2813 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
2815 # leave out actual C generation (debugging) [also turns off interface gen]
2818 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
2819 # _do_ generate an interface; usually used as: -noC -hi
2820 /^-hi-with-(.*)$/ && do { $HiOnStdout = 1; $HiWith .= " $1" ; $ProduceHi = '-hifile='; next arg; };
2821 # limit ourselves to outputting a particular section.
2823 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
2824 # don't generate an interface (even if generating C)
2826 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
2827 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
2828 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
2829 /^-keep-hi-diffs$/ && do { $Keep_HiDiffs = 1; next arg; };
2831 # show/disable diffs if the interface file changes
2833 /^-E$/ && do { push(@CcBoth_flags, '-E');
2834 $Only_preprocess_C = 1;
2835 $Do_as = 0; $Do_lnkr = 0; next arg; };
2836 # stop after preprocessing C
2837 /^-M$/ && do { $Only_generate_deps = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2838 # only generate dependency information.
2839 /^--mk-dll$/ && do { $Only_generate_dll = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2840 # Build a Win32 DLL (where supported).
2841 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
2842 # stop after generating assembler
2844 /^-c$/ && do { $Do_lnkr = 0; next arg; };
2845 # stop after generating .o files
2847 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
2848 # don't do consistency-checking after a link
2849 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
2851 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', '');
2852 $Tmp_prefix = "$Tmp_prefix/ghc$$";
2853 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
2855 # use an alternate directory for temp files
2857 #---------- redirect output --------------------------------------------
2859 # -o <file>; applies to the last phase, whatever it is
2860 # "-o -" sends it to stdout
2861 # if <file> has a directory component, that dir must already exist
2863 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', '');
2865 # Hack, of the worst sort: don't do validation of
2866 # odir argument if you're using -M (dependency generation).
2868 if ( ! $Only_generate_deps && ! -d $Specific_output_dir) {
2869 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
2874 /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', '');
2875 if ($Specific_output_file ne '-'
2876 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
2877 local($dir_part) = $1;
2878 if (! -d $dir_part) {
2879 print STDERR "$Pgm: no such directory: $dir_part\n";
2885 # NB: -isuf not documented yet (because it doesn't work yet)
2886 /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', '');
2887 if ($Isuffix =~ /\./ ) {
2888 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
2893 /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', '');
2894 if ($Osuffix =~ /\./ ) {
2895 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
2900 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
2901 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', '');
2902 if ($Specific_hi_file ne '-'
2903 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
2904 local($dir_part) = $1;
2905 if (! -d $dir_part) {
2906 print STDERR "$Pgm: no such directory: $dir_part\n";
2910 $ProduceHi='-hifile=';
2913 # The suffix to use when looking for interface files
2914 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', '');
2915 if ($HiSuffix =~ /\./ ) {
2916 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
2920 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', '');
2921 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
2922 local($dir_part) = $1;
2923 if (! -d $dir_part) {
2924 print STDERR "$Pgm: no such directory: $dir_part\n";
2930 #-------------- scc & Profiling Stuff ----------------------------------
2932 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
2934 /^-auto-dicts$/ && do {
2935 $PROFdicts = '-fauto-sccs-on-dicts';
2937 /^-auto-all$/ && do {
2938 $PROFauto = '-fauto-sccs-on-all-toplevs';
2941 $PROFauto = '-fauto-sccs-on-exported-toplevs';
2944 /^-caf-all/ && do { # generate individual CAF SCC annotations
2945 $PROFcaf = '-fauto-sccs-on-individual-cafs';
2948 /^-ignore-scc$/ && do {
2949 # forces ignore of scc annotations even if profiling
2950 $PROFignore_scc = '-W';
2953 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
2956 /^-unprof-scc-auto/ && do {
2957 # generate auto SCCs on top level bindings when not profiling.
2958 # Used to measure optimisation effects of presence of sccs.
2959 $UNPROFscc_auto = ( /-all/ )
2960 ? '-fauto-sccs-on-all-toplevs'
2961 : '-fauto-sccs-on-exported-toplevs';
2964 #--------- ticky/parallel ----------------------------------------------
2965 # we sort out the details a bit later on
2967 /^-gransim$/ && do { $GRANing = 'g'; &add_syslib('concurrent'); next arg; }; # GranSim
2968 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
2969 /^-parallel$/ && do { $PARing = 'p'; &add_syslib('concurrent'); next arg; }; # parallel Haskell
2970 /^-smp$/ && do { $SMPing = 's'; &add_syslib('concurrent'); next arg; }; # parallel Haskell
2972 #-------------- "user ways" --------------------------------------------
2974 (/^-user-setup-([a-oA-Z])$/ ) &&
2976 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
2978 local($stuff) = $UserSetupOpts{$BuildTag};
2979 local(@opts) = split(/\s+/, $stuff);
2981 # feed relevant ops into the arg-processing loop (if any)
2982 unshift(@Args, @opts) if $#opts >= 0;
2986 #---------- set search paths for libraries and things ------------------
2988 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
2989 # prepends the items to the list); -I is for including C .h files.
2991 /^-i$/ && do { @Import_dir = (); # import path cleared!
2992 @SysImport_dir = ();
2993 print STDERR "WARNING: import paths cleared by `-i'\n";
2996 /^-i(.*)/ && do { local(@new_items);
3000 if ( $arg =~ /;/ ) {
3002 @new_items = split( /;/, &grab_arg_arg(*Args,'-i', $arg));
3004 @new_items = split( /:/, &grab_arg_arg(*Args,'-i', $arg));
3006 unshift(@Import_dir, @new_items);
3009 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; };
3010 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; };
3011 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; };
3013 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1);
3014 &add_syslib($syslib);
3017 #=======================================================================
3018 # various flags that we can harmlessly send to one program or another
3019 # (we will later "reclaim" some of the compiler ones now sent to gcc)
3020 #=======================================================================
3022 #---------- this driver itself (ghc) -----------------------------------
3023 # these change what executable is run for each phase:
3024 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
3025 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
3026 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
3027 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
3028 /^-pgma(.*)$/ && do { $As = $1; next arg; };
3029 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
3030 /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; };
3032 #---------- the get-anything-through opts (all pgms) -------------------
3033 # these allow arbitrary option-strings to go to any phase:
3034 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
3035 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
3036 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
3037 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
3038 /^-optcpp(.*)$/ && do { push(@Cpp_define, $1); $Only_preprocess_hc = ($1 eq "-E"); next arg; };
3039 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
3040 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
3041 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
3042 /^-optdll(.*)$/ && do { push(@Dll_flags, $1); next arg; };
3043 /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; };
3045 #---------- Haskell C pre-processor (hscpp) ----------------------------
3046 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; };
3047 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; };
3049 #---------- post-Haskell "assembler"------------------------------------
3050 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
3051 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
3053 #---------- Haskell compiler (hsc) -------------------------------------
3055 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
3056 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
3058 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
3059 /^-fignore-asserts$/ && do { push(@HsC_flags, $_); next arg; };
3061 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
3064 # have the compiler proper generate concurrent code,
3065 # really only used when you want to configure your own
3066 # special user compilation way.
3068 # (ditto for -fgransim, fscc-profiling, -fparallel and -fticky-ticky)
3070 /^-fscc-profiling$/ && do { push(@HsC_flags,$_); next arg; };
3071 /^-fticky-ticky$/ && do { push(@HsC_flags,$_); next arg; };
3072 /^-fgransim$/ && do { push(@HsC_flags,$_); next arg; };
3073 /^-fparallel$/ && do { push(@HsC_flags,$_); next arg; };
3074 /^-fsmp$/ && do { push(@HsC_flags,$_); next arg; };
3076 /^-split-objs$/ && do {
3077 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|rs6000|sparc)-/ ) {
3079 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
3084 push(@HsC_flags, "-fglobalise-toplev-names");
3085 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
3087 require('ghc-split.prl')
3088 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
3092 /^-unreg$/ && do { $UNREGing = 'u'; next arg; };
3093 /^-funregisterised$/ && do { push(@HsC_flags, $_); next arg; };
3094 /^-fno-asm-mangling$/ && do { $DoAsmMangling = 0; next arg; };
3096 /^-fallow-overlapping-instances$/ && do { push(@HsC_flags, $_); next arg; };
3097 /^-fallow-undecidable-instances$/ && do { push(@HsC_flags, $_); next arg; };
3098 /^-fhistory-size.*$/ && do { push(@HsC_flags, $_); next arg; };
3099 /^-fdicts-strict$/ && do { push(@HsC_flags, $_); next arg; };
3101 && do { push(@HsC_flags, $_);
3103 # -fglasgow-exts implies -syslib exts
3104 &add_syslib('exts');
3109 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
3110 /^-fno-speciali[sz]e$/
3111 && do { $Oopt_DoSpecialise = ''; next arg; };
3114 && do { $Oopt_UsageSPInf = '-fusagesp';
3115 push (@HsC_flags, '-fusagesp-on'); next arg; };
3117 /^-fcompiling-prelude$/ && do { $CompilingPrelude=1; push(@HsC_flags, $_); next arg; };
3119 # Now the foldr/build options, which are *on* by default (for -O).
3122 && do { $Oopt_FoldrBuild = 1;
3126 /^-fno-foldr-build$/
3127 && do { $Oopt_FoldrBuild = 0;
3130 # --------------- Renamer -------------
3133 /^-fno-prune-tydecls$/ && do { push(@HsC_flags, $_); next arg; };
3134 /^-fno-prune-instdecls$/ && do { push(@HsC_flags, $_); next arg; };
3138 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
3139 /^-fvia-[cC]$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
3144 && do { push(@HsC_flags, $_); next arg };
3146 /^-fliberate-case-.*$/
3147 && do { push(@HsC_flags, $_); next arg };
3149 /^-funfold-casms-in-hi-file$/
3150 && do { push(@HsC_flags, $_); next arg };
3152 /^(-fmax-simplifier-iterations)(.*)$/
3153 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2);
3156 /^-fno-pedantic-bottoms$/
3157 && do { $Oopt_PedanticBottoms = ''; next arg; };
3159 /^-fno-pre-inlining$/
3160 && do { push(@HsC_flags, $_); next arg };
3162 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
3163 && do { push(@HsC_flags, $_); next arg; };
3165 /^-funbox-strict-fields$/
3166 && do { push(@HsC_flags, $_); next arg; };
3168 # --------------- Warnings etc. ------
3170 /^-fwarn-(.*)$/ && do { push(@HsC_flags, $_); next arg; };
3172 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
3173 &squashHscFlag("-f$1");
3176 /^-W$/ && do { push(@HsC_flags, @MinusWOpts); next arg; };
3177 /^-Wall$/ && do { push(@HsC_flags, @MinusWallOpts); next arg; };
3178 /^(-Wnot|w)$/ && do { foreach (@Hsc_flags) {
3179 /^-fwarn-(.*)$/ && do { $_=''; };
3181 push(@HsC_antiflags, @StandardWarnings);
3184 # --------------- fun stuff ----------------
3186 /^-freport-compile$/ && do { push(@HsC_flags, $_); next arg; };
3188 # --------------- platform specific flags (for gcc mostly) ----------------
3190 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes,
3191 # for 2.6.x..?, does not apply for 2.7.2
3193 unshift(@CcBoth_flags, ( $_ ));
3196 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
3197 && do { # for GCC for SPARCs
3198 unshift(@CcBoth_flags, ( $_ ));
3201 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
3202 $StolenX86Regs = $1;
3205 #*************** ... and lots of debugging ones (form: -d* )
3207 # -d(no-)core-lint is done this way so it is turn-off-able.
3208 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
3209 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
3210 # Ditto for USP lint
3211 /^-dusagesp-lint/ && do { $USPLint = '-dusagesp-lint'; next arg; };
3212 /^-dno-usagesp-lint/ && do { $USPLint = ''; next arg; };
3213 # Ditto for STG lint
3214 /^-dstg-lint/ && do { $StgLint = '-dstg-lint'; next arg; };
3215 /^-dno-stg-lint/ && do { $StgLint = ''; next arg; };
3217 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
3218 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
3219 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
3220 /^-dshow-rn-stats/ && do { push(@HsC_flags, $_); next arg; };
3221 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
3222 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
3223 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
3224 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
3226 #*************** ... and now all these -R* ones for its runtime system...
3228 /^-Rscale-sizes?(.*)/ && do {
3229 $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1);
3232 /^(-H|-Rmax-heapsize)(.*)/ && do {
3233 local($heap_size) = &grab_arg_arg(*Args,$1, $2);
3234 if ($heap_size =~ /(\d+)[Kk]$/) {
3235 $heap_size = $1 * 1000;
3236 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
3237 $heap_size = $1 * 1000 * 1000;
3238 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
3239 $heap_size = $1 * 1000 * 1000 * 1000;
3241 if ($heap_size <= 0) {
3242 print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n";
3243 $Specific_heap_size = 0;
3245 # if several heap sizes given, take the largest...
3246 } elsif ($heap_size >= $Specific_heap_size) {
3247 $Specific_heap_size = $heap_size;
3249 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n";
3253 /^(-K|Rmax-(stk|stack)size)(.*)/ && do {
3255 local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3);
3256 if ($stk_size =~ /(\d+)[Kk]$/) {
3257 $stk_size = $1 * 1000;
3258 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
3259 $stk_size = $1 * 1000 * 1000;
3260 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
3261 $stk_size = $1 * 1000 * 1000 * 1000;
3263 if ($stk_size <= 0) {
3264 print STDERR "$Pgm: resetting stack-size to zero!!! $stk_size\n";
3265 $Specific_stk_size = 0;
3267 # if several stack sizes given, take the largest...
3268 } elsif ($stk_size >= $Specific_stk_size) {
3269 $Specific_stk_size = $stk_size;
3271 print STDERR "$Pgm: ignoring stack-size-setting option ($flag $stk_size)...not the largest seen\n";
3275 /^-Rgc-stats$/ && do { $CollectingGCstats++;
3276 # the two RTSs do this diff ways; we will try to compensate
3279 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
3281 #---------- C high-level assembler (gcc) -------------------------------
3282 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
3284 # -dgcc-lint is a useful way of making GCC very fussy.
3285 # From alan@spri.levels.unisa.edu.au (Alan Modra).
3286 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
3287 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
3288 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
3290 # inject "#include <wurble>" into the compiler's C output!
3292 /^-#include(.*)/ && do {
3293 local($to_include) = &grab_arg_arg(*Args,'-#include', $1);
3294 push(@CcInjects, "#include $to_include\n");
3297 #---------- Linker (gcc, really) ---------------------------------------
3299 /^-static$/ && do { $Static=1; push(@Ld_flags, $_); next arg; };
3300 /^-no-hs-main$/ && do { $NoHaskellMain=1; next arg; };
3302 #---------- mixed cc and linker magic ----------------------------------
3303 # this optimisation stuff is finally sorted out later on...
3305 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
3307 /^-O[1-2]?$/ && do {
3308 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
3309 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
3311 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
3314 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
3316 /^-Ofile(.*)/ && do {
3318 local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1);
3319 @HsC_minusO3_flags = ();
3321 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
3324 s/\#.*//; # death to comments
3325 s/[ \t]+//g; # death to whitespace
3326 next if /^$/; # ditto, blank lines
3327 s/([()*{}])/\\$1/g; # protect shell metacharacters
3329 push(@CcBoth_flags, $1);
3331 push(@HsC_minusO3_flags, $_);
3337 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
3338 # in the consistency info
3342 #---------- linking .a file --------------------------------------------
3344 /^-Main(.*)/ && do {
3345 # specifies main or mainPrimIO to be linked
3349 #---------- catch unrecognized flags -----------------------------------
3352 print STDERR "$Pgm: unrecognised option: $_\n";
3358 } # end of processArgs