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 use 5; # require Perl version 5 or later.
17 ($Pgm = $0) =~ s|.*/||;
18 $ShortUsage = "\nUsage: For basic information, try the `-help' option.\n";
19 $LongUsage = "\n" . <<EOUSAGE;
20 Use of the Glorious Haskell Compilation System driver:
22 $Pgm [command-line-options-and-input-files]
24 ------------------------------------------------------------------------
25 This driver ($Pgm) guides each input file through (some of the)
26 possible phases of a compilation:
28 - unlit: extract code from a "literate program"
29 - hscpp: run code through the C pre-processor (if -cpp flag given)
30 - hsc: run the Haskell compiler proper
31 - gcc: run the C compiler (if compiling via C)
32 - as: run the assembler
35 For each input file, the phase to START with is determined by the
37 - .lhs literate Haskell: unlit
38 - .hs illiterate Haskell: hsc
39 - .hc C from the Haskell compiler: gcc
40 - .c C not from the Haskell compiler: gcc
41 - .s assembly language: as
42 - other passed directly to the linker: ld
44 If no files are given on the command line, input is taken from
45 standard input, and processing is as for an .hs file. (All output is
46 to stdout or stderr, however).
48 The phase at which to STOP processing is determined by a command-line
50 -E stop after generating preprocessed, de-litted Haskell (used in conjunction with -cpp)
51 -C stop after generating C (.hc output)
52 -S stop after generating assembler (.s output)
53 -c stop after generating object files (.o output)
55 Other commonly-used options are:
57 -O An `optimising' package of compiler flags, for faster code
59 -prof Compile for cost-centre profiling
60 (add -auto for automagic cost-centres on top-level functions)
62 -fglasgow-exts Allow Glasgow extensions (unboxed types, etc.)
64 -H14m Increase compiler's heap size
66 -M Output the Makefile rules recording the
67 dependencies of a list of Haskell files.
68 (ghc driver script calls upon the help of a
69 compatible mkdependHS script to do the actual
72 The User's Guide has more information about GHC's *many* options.
74 Given the above, here are some TYPICAL invocations of $Pgm:
76 # compile a Haskell module to a .o file, optimising:
78 # link three .o files into an executable called "test":
79 % $Pgm -o test Foo.o Bar.o Baz.o
80 # compile a Haskell module to C (a .hc file), using a bigger heap:
81 % $Pgm -C -H16m Foo.hs
82 # compile Haskell-produced C (.hc) to assembly language:
84 ------------------------------------------------------------------------
88 %************************************************************************
90 \section[Driver-init]{Initialisation}
92 %************************************************************************
94 The driver script need to be told where to find these executables, so
95 in the course of building the driver `executable', make-variables holding
96 these are prepended to the de-litted version of this file. The variables are:
101 HOSTPLATFORM TARGETPLATFORM
103 ProjectName ProjectVersion ProjectVersionInt
105 HscMajorVersion HscMinorVersion CcMajorVersion CcMinorVersion
109 bindir libdir libexecdir datadir
113 GHC_LIB_DIR GHC_RUNTIME_DIR GHC_INCLUDE_DIR
115 GHC_OPT_HILEV_ASM GhcWithNativeCodeGen
117 GHC_UNLIT GHC_HSCPP GHC_MKDEPENDHS GHC_HSC GHC_SYSMAN
121 WAY_*_NAME WAY_*_REAL_OPTS
129 Establish what executables to run for the various phases, what the
130 default options are for those phases, and other similar boring stuff.
133 select(STDERR); $| = 1; select(STDOUT); # no STDERR buffering, please.
135 $TargetPlatform = $TARGETPLATFORM;
137 $TopPwd = "${TOP_PWD}";
138 $InstBinDirGhc = "${bindir}";
139 $InstLibDirGhc = "${libdir}";
141 # Normally the same as InstLibDirGhc, but we accommodate
142 # for it being separate.
144 $InstLibExecDirGhc = "${libexecdir}";
145 $InstDataDirGhc = "${datadir}";
147 $Status = 0; # just used for exit() status
150 # set up signal handler
151 sub quit_upon_signal { &tidy_up_and_die(1, ''); }
152 $SIG{'INT'} = 'quit_upon_signal';
153 $SIG{'QUIT'} = 'quit_upon_signal';
155 # where to get "require"d .prl files at runtime (poor man's dynamic loading)
156 # (use LIB, not DATA, because we can't be sure of arch-independence)
157 @INC = ( ( $INSTALLING ) ? $InstLibDirGhc
158 : "$TopPwd/${CURRENT_DIR}" );
160 if ( $ENV{'TMPDIR'} ) { # where to make tmp file names
161 $Tmp_prefix = ($ENV{'TMPDIR'} . "/ghc$$");
163 print STDERR "TMPDIR has not been set to anything useful!\n" if (${TMPDIR} eq '');
164 $Tmp_prefix ="${TMPDIR}/ghc$$"; # TMPDIR set via Makefile when booting..
165 $ENV{'TMPDIR'} = ${TMPDIR}; # set the env var as well
168 # Some shells run into real trouble when command line and environment
169 # gets big (e.g., cmd lines of >4K to /bin/sh causes havoc on our
170 # Solaris-2.5.1 boxes - even though sysconf(_SC_ARG_MAX) reports 1M ...).
171 # To work around any such */bin/sh* problems, we will scribble such
172 # awfully long command lines into a temp file and exec that temp file
173 # with $(REAL_SHELL) (don't use the SHELL variable directly as this
174 # will normally get you the wrong thing when the driver is invoked
175 # from within `make'). If the REAL_SHELL variable isn't set, you'll
176 # get SHELL. This is all a terrible hack. (in case you hadn't reached
177 # the same conclusion by now :-)
181 if ( ! $ENV{'REAL_SHELL'} ) {
182 $ENV{'REAL_SHELL'} = $ENV{'SHELL'};
185 @Files_to_tidy = (); # files we nuke in the case of abnormal termination
187 $Unlit = ( $INSTALLING ) ? "$InstLibExecDirGhc/unlit"
188 : "$TopPwd/${CURRENT_DIR}/${GHC_UNLIT}";
192 $Diff = $CONTEXT_DIFF;
197 $HsCpp = # but this is re-set to "cat" (after options) if -cpp not seen
198 ( $INSTALLING ) ? "$InstLibExecDirGhc/hscpp"
199 : "$TopPwd/${CURRENT_DIR}/${GHC_HSCPP}";
202 $HsC = ( $INSTALLING ) ? "$InstLibExecDirGhc/hsc"
203 : "$TopPwd/${CURRENT_DIR}/${GHC_HSC}";
205 # For PVM fiends only
206 $SysMan = ( $INSTALLING ) ? "$InstLibExecDirGhc/SysMan"
207 : "$TopPwd/${CURRENT_DIR}/${GHC_SYSMAN}";
212 # HsC_rts_flags: if we want to talk to the LML runtime system
213 # NB: we don't use powers-of-2 sizes, because this may do
214 # terrible things to cache behavior.
216 $Specific_heap_size = 6 * 1000 * 1000;
217 $Specific_stk_size = 1000 * 1000;
218 $Scale_sizes_by = 1.0;
222 The variables set by @setupOptFlags@ represent parts of the
223 -O/-O2/etc ``templates,'' which are filled in later, using these.
224 These are the default values, which may be changed by user flags.
228 $Oopt_MaxSimplifierIterations = '-fmax-simplifier-iterations4';
229 $Oopt_PedanticBottoms = '-fpedantic-bottoms'; # ON by default
230 $Oopt_FinalStgProfilingMassage = '';
232 $Oopt_DoSpecialise = '-fspecialise';
233 $Oopt_FoldrBuild = 0; # *Off* by default!
234 $Oopt_UsageSPInf = ''; # Off by default
235 } # end of setupOptFlags
237 # Assign defaults to these right away.
241 Things to do with C compilers/etc:
243 (added -Wimplicit: implicit prototypes cause very hard-to-find
244 problems, so I'm turing on the warnings -- SDM 4/5/98)
247 $CcRegd = $GHC_OPT_HILEV_ASM;
248 @CcBoth_flags = ('-S','-Wimplicit'); # flags for *any* C compilation
252 # those for all files,
253 # those only for .c files;
254 # those only for .hc files
257 @CcRegd_flags_c = ();
258 @CcRegd_flags_hc = ();
260 $As = ''; # "assembler" is normally GCC
263 $Lnkr = ''; # "linker" is normally GCC
267 # 'nm' is used for consistency checking (ToDo: mk-world-ify)
268 # ToDo: check the OS or something ("alpha" is surely not the crucial question)
269 $Nm = ($TargetPlatform =~ /^alpha-/) ? 'nm -B' : 'nm';
272 Warning packages that are controlled by -W and -Wall. The 'standard'
273 warnings that you get all the time are
275 -fwarn-overlapping-patterns
276 -fwarn-missing-methods
277 -fwarn-missing-fields
279 -fwarn-duplicate-exports
281 these are turned off by -Wnot.
284 @StandardWarnings = ('-fwarn-overlapping-patterns',
285 '-fwarn-missing-methods',
286 '-fwarn-missing-fields',
287 '-fwarn-deprecations',
288 '-fwarn-duplicate-exports');
289 @MinusWOpts = (@StandardWarnings,
290 '-fwarn-unused-binds',
291 '-fwarn-unused-matches',
292 '-fwarn-incomplete-patterns',
293 '-fwarn-unused-imports');
294 @MinusWallOpts = (@MinusWOpts,
295 '-fwarn-type-defaults',
296 '-fwarn-name-shadowing',
297 '-fwarn-missing-signatures');
300 What options \tr{-user-setup-a} turn into (user-defined ``packages''
302 of options). Note that a particular user-setup implies a particular
303 Prelude ({\em including} its interface file(s)).
305 $BuildTag = ''; # default is sequential build w/ Appel-style GC
307 %BuildDescr = (# system ways begin
308 '', 'Normal Sequential',
310 '_t', "Ticky-ticky Profiling",
311 '_u', "Unregisterised",
332 '_B', "$WAY_B_NAME" );
334 # these are options that are "fed back" through the option processing loop
338 '_a', "$WAY_a_REAL_OPTS",
339 '_b', "$WAY_b_REAL_OPTS",
340 '_c', "$WAY_c_REAL_OPTS",
341 '_d', "$WAY_d_REAL_OPTS",
342 '_e', "$WAY_e_REAL_OPTS",
343 '_f', "$WAY_f_REAL_OPTS",
344 '_g', "$WAY_g_REAL_OPTS",
345 '_h', "$WAY_h_REAL_OPTS",
346 '_i', "$WAY_i_REAL_OPTS",
347 '_j', "$WAY_j_REAL_OPTS",
348 '_k', "$WAY_k_REAL_OPTS",
349 '_l', "$WAY_l_REAL_OPTS",
350 '_m', "$WAY_m_REAL_OPTS",
351 '_n', "$WAY_n_REAL_OPTS",
352 '_o', "$WAY_o_REAL_OPTS",
353 '_A', "$WAY_A_REAL_OPTS",
354 '_B', "$WAY_B_REAL_OPTS",
357 '_p', "-fscc-profiling -DPROFILING -optc-DPROFILING",
358 '_t', "-fticky-ticky -DTICKY_TICKY -optc-DTICKY_TICKY",
359 '_u', "-optc-DNO_REGS -optc-DUSE_MINIINTERPRETER -fno-asm-mangling -funregisterised",
360 '_s', "-fsmp -optc-pthread -optl-pthread -optc-DSMP",
361 '_mp', "-fparallel -D__PARALLEL_HASKELL__ -optc-DPAR",
362 '_mg', "-fgransim -D__GRANSIM__ -optc-DGRAN");
364 # where to look for interface files (system hi's, i.e., prelude and syslibs)
365 @SysImport_dir = ( $INSTALLING )
366 ? ( "$InstLibDirGhc/imports/std" )
367 : ( "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std" );
369 # We need to look in ghc/ and glaExts/ when searching for implicitly needed .hi files, but
370 # we should really *not* look there for explicitly imported modules.
372 $Haskell1Version = 5; # i.e., Haskell 1.4
375 # Cpp symbols defined when we're processing Haskell source.
379 , "-D__HASKELL1__=$Haskell1Version"
380 , "-D__GLASGOW_HASKELL__=$ProjectVersionInt"
382 , "-D__CONCURRENT_HASKELL__"
386 @SysLibrary_dir = ( ( $INSTALLING ) #-syslib things supplied by the system
388 : ( "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR"
389 , "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/gmp"
390 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std"
391 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std/cbits"
395 # make depend for Haskell
397 = ( $INSTALLING ) ? "$InstLibExecDirGhc/mkdependHS"
398 : "$TopPwd/$CURRENT_DIR/$GHC_MKDEPENDHS";
400 @MkDependHS_flags = ();
402 # do_link flag should not be reset while rescanning the cmd-line.
404 $Specific_output_dir = ''; # set by -odir <dir>
405 $Specific_output_file = ''; # set by -o <file>; "-" for stdout
408 Function to initialise the per-compilation-unit globals that
409 are used to guide and control the invocation of the different phases.
412 sub initDriverGlobals {
414 # reset the following options:
415 # RTS flags to use while compiling
421 The optimisations/etc to be done by the compiler are {\em normally}
422 expressed with a \tr{-O} (or \tr{-O2}) flag, or by its absence.
425 $OptLevel = 0; # no -O == 0; -O == 1; -O2 == 2; -Ofile == 3
426 $MinusO2ForC = 0; # set to 1 if -O2 should be given to C compiler
427 $StolenX86Regs = 4; # **HACK*** of the very worst sort
432 # The SplitMarker is the string/character used to mark end of element
435 @Import_dir = ('.'); #-i things
436 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
438 @UserLibrary_dir= (); #-L things;...
439 @UserLibrary = (); #-l things asked for by the user
441 @SysLibrary = (); # will be built up as we go along
444 We are given a list of files with various presumably-known suffixes
445 (unknown-suffix files go straight to the linker). For each file, we
446 begin by assuming that we'll run every phase over it. However: (1)
447 global flags (\tr{-c}, \tr{-S}, etc.) tell us not to run any phase
448 past a certain point; and (2) the file's suffix tells us what phase to
449 start with. Linking is weird and kept track of separately.
451 Here are the initial defaults applied to all files:
453 $Cpp_flag_set = 0; # (hack)
454 $Only_preprocess_C = 0; # pretty hackish
455 $Only_preprocess_hc = 0; # ditto
456 $Only_generate_deps = 0; # ""
457 $Only_generate_dll = 0;
458 $PostprocessCcOutput = 0;
461 # static = 0 => produce code for DLLs (when compiling & linking.)
463 $Static = 0 if ($EnableWin32DLLs eq 'YES');
465 # native code-gen or via C?
466 $HaveNativeCodeGen = $GhcWithNativeCodeGen;
467 $HscOut = '-C='; # '-C=' ==> .hc output; '-S=' ==> .s output; '-N=' ==> neither
469 if ($HaveNativeCodeGen ne 'YES') && $TargetPlatform =~ /^(alpha)-/;
470 # TEMP: disable x86 & Sparc if $HaveNativeCodeGen && $TargetPlatform =~ /^(i386|alpha|sparc)-/;
471 $ProduceHi = '-hifile=';
477 $CollectingGCstats = 0;
478 $CollectGhcTimings = 0;
479 $DEBUGging = ''; # -DDEBUG and all that it entails (um... not really)
480 $PROFing = ''; # set to p or e if profiling
481 $PROFauto = ''; # set to relevant hsc flag if -auto or -auto-all
482 $PROFcaf = ''; # set to relevant hsc flag if -caf-all
483 $PROFdict = ''; # set to relevant hsc flag if -auto-dicts
484 $PROFignore_scc = ''; # set to relevant parser flag if explicit sccs ignored
485 $UNPROFscc_auto = ''; # set to relevant hsc flag if forcing auto sccs without profiling
486 $TICKYing = ''; # set to t if compiling for ticky-ticky profiling
487 $PARing = ''; # set to p if compiling for PAR
488 $GRANing = ''; # set to g if compiling for GRAN
489 $UNREGing = ($GhcWithRegisterised eq 'YES') ? '' : 'u';
490 $Specific_hi_file = ''; # set by -ohi <file>; "-" for stdout
491 $Specific_dump_file = ''; # set by -odump <file>; "-" for stdout
492 $Using_dump_file = 0;
494 $Osuffix = ''; # default: use the normal suffix for that kind of output
496 $HiSuffix_prelude = '';
498 $Do_recomp_chkr = 0; # don't use the recompilatio checker unless asked
499 $Do_cc = -1; # a MAGIC indeterminate value; will be set to 1 or 0.
502 $Keep_hc_file_too = 0;
503 $Keep_s_file_too = 0;
504 $UseGhcInternals = 0; # if 1, may use GHC* modules
506 $DoAsmMangling = 1; # on by default, off by -fno-asm-mangling
508 $Dump_parser_output = 0;
510 $Dump_asm_splitting_info = 0;
511 $NoImplicitPrelude = 0;
512 # 1 => don't tell the linker to hoist in PrelMain.Main, as an
513 # external main is provided instead.
516 } # end of initDriverGlobals (Sigh)
518 # we split the argv passed to the driver into three:
523 # and files to be linked...
529 # cmd line options prefixing the unit we're compiling
534 We inject consistency-checking information into \tr{.hc} files (both
535 when created by the Haskell compiler and when compiled by the C
536 compiler), so that we can check that an executable is made from
537 consistently-built pieces. (The check is normally done just after
538 linking.) The checking is done by introducing/munging
539 \tr{what(1)}-style strings. Anyway, here are the relevant global
540 variables and their defaults:
542 $LinkChk = 0; # set to 0 if the link check should *not* be done
544 # major & minor version numbers; major numbers must always agree;
545 # minor disagreements yield a warning.
546 $HsC_major_version = $HscMajorVersion;
547 $HsC_minor_version = $HscMinorVersion;
548 $Cc_major_version = $CcMajorVersion;
549 $Cc_minor_version = $CcMinorVersion;
551 # options: these must always agree
552 $HsC_consist_options = ''; # we record, in this order:
553 # Build tag; debugging?
554 $Cc_consist_options = ''; # we record, in this order:
555 # Build tag; debugging?
558 %************************************************************************
560 \section[Driver-parse-argv]{Munge the command-line options}
562 %************************************************************************
564 Now slurp through the arguments.
567 &initDriverGlobals();
568 &splitCmdLine(@ARGV);
569 # Run through the cmd-line first time.
570 &processArgs(@Cmd_opts);
572 # Check to see if driver is only in the business
573 # to generate dependencies
574 if ( $Status == 0 && $Only_generate_deps ) {
576 push (@MkDependHS_flags, "-o$Osuffix") if $Osuffix;
577 # They're not (currently) needed, but we need to quote any -#include options
578 foreach (@Cmd_opts) {
579 s/-#include.*$/'$&'/g;
581 local($to_do) = "$MkDependHS @MkDependHS_flags @HsSourceCppOpts -- @Cmd_opts -- @Input_file" ;
582 &run_something($to_do, 'Haskell dependencies');
586 # ..or just to construct a (Haskell) DLL.
587 if ( $Status == 0 && $Only_generate_dll && $EnableWin32DLLs ) {
593 # if there are several input files,
594 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
595 # (except if linking, of course)
597 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
598 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
599 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
600 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
601 print STDERR "\tPerhaps the -odir option will do what you want.\n";
606 # check for various pathological -o and -odir combinations...
607 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
608 if ($Specific_output_file eq '-') {
609 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
611 } else { # amalgamate...
612 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
613 # ToDo: check we haven't got a junk name now...
614 $Specific_output_dir = ''; # reset
618 # crash and burn if there were errors
620 print STDERR $ShortUsage;
625 %************************************************************************
627 \section[Driver-post-argv-mangling]{Setup after reading options}
629 %************************************************************************
631 %************************************************************************
633 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
635 %************************************************************************
637 We come now to the default ``wads of options'' that are turned on by
638 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
639 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
642 The user can also specify his/her own list of options in a file; in
643 that case, the work is already done (see stuff about @minusO3@,
646 GHC allows very precise control of what happens during a compilation.
647 Core-to-Core and STG-to-STG passes can be run in any order, as many
648 times as you like. Individual transformations can be turned on or
651 Sadly, however, there are some interdependencies \& Things You Must
652 Not Do. Here is the list.
656 \item[\tr{-fspecialise}:]
657 The specialiser must have dependency-analysed input; but if you run
658 the simplifier to do this, you must not let it toss away unused
659 bindings! (The typechecker conveys some specialisation info via
660 ``unused'' bindings...)
662 \item[\tr{-ffloat-inwards}:]
663 Floating inwards should be done before strictness analysis, because
664 the latter will give better results.
666 \item[\tr{-fstatic-args}:]
667 The static-arguments-transformation pass {\em must} have the
668 simplifier run right after it.
670 \item[\tr{-fcalc-inlinings[12]}:]
671 Not required, but there may be slight gains by re-simplifying after
672 this is done. (You could then \tr{-fcalc-inlinings} again, just for
675 \item[\tr{-ffull-laziness}:]
676 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
677 that's run. (Um, well, howzabout the simplifier just once more...)
682 \item[\tr{-fupdate-analysis}:]
683 It really really wants to be the last STG-to-STG pass that is run.
688 sub setupOptimiseFlags {
690 # this pass-ordering sequence was agreed by Simon and Andr\'e
691 # (WDP 94/07, 94/11).
697 $Oopt_MaxSimplifierIterations,
701 $Oopt_FinalStgProfilingMassage
704 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
708 '-fdo-eta-reduction',
709 '-fdo-lambda-eta-expansion',
713 $Oopt_PedanticBottoms,
715 # initial simplify: mk specialiser happy: minimum effort please
719 '-finline-phase0', # Don't inline anything till full laziness has bitten
720 # In particular, inlining wrappers inhibits floating
721 # e.g. ...(case f x of ...)...
722 # ==> ...(case (case x of I# x# -> fw x#) of ...)...
723 # ==> ...(case x of I# x# -> case fw x# of ...)...
724 # and now the redex (f x) isn't floatable any more
726 '-fno-rules', # Similarly, don't apply any rules until after full laziness
727 # Notably, list fusion can prevent floating.
729 '-fmax-simplifier-iterations2',
732 # Specialisation is best done before full laziness
733 # so that overloaded functions have all their dictionary lambdas manifest
734 ($Oopt_DoSpecialise) ? ( $Oopt_DoSpecialise, ) : (),
740 # # Run the simplifier before specialising, so that overloaded functions
741 # # look like f = \d -> ...
742 # # (Full laziness may lift out something hiding the \d
744 # '-fmax-simplifier-iterations1',
751 # Want to run with inline phase 1 after the specialiser to give
752 # maximum chance for fusion to work before we inline build/augment
753 # in phase 2. This made a difference in 'ansi' where an overloaded
754 # function wasn't inlined till too late.
755 $Oopt_MaxSimplifierIterations,
758 $Oopt_UsageSPInf, # infer usage information here in case we need it later.
759 # (add more of these where you need them --KSW 1999-04)
763 # Need inline-phase2 here so that build/augment get
764 # inlined. I found that spectral/hartel/genfft lost some useful
765 # strictness in the function sumcode' if augment is not inlined
766 # before strictness analysis runs
769 $Oopt_MaxSimplifierIterations,
779 $Oopt_MaxSimplifierIterations,
780 # No -finline-phase: allow all Ids to be inlined now
783 '-ffull-laziness', # nofib/spectral/hartel/wang doubles in speed if you
784 # do full laziness late in the day. It only happens
785 # after fusion and other stuff, so the early pass doesn't
786 # catch it. For the record, the redex is
787 # f_el22 (f_el21 r_midblock)
789 # We want CSE to follow the final full-laziness pass, because it may
790 # succeed in commoning up things floated out by full laziness.
792 # CSE must immediately follow a simplification pass, because it relies
793 # on the no-shadowing invariant. See comments at the top of CSE.lhs
794 # So it must NOT follow float-inwards, which can give rise to shadowing,
795 # even if its input doesn't have shadows. Hence putting it between
802 # Case-liberation for -O2. This should be after
803 # strictness analysis and the simplification which follows it.
807 # : "-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 ]" ),
811 # Final clean-up simplification:
815 $Oopt_MaxSimplifierIterations,
816 # No -finline-phase: allow all Ids to be inlined now
823 $Oopt_FinalStgProfilingMassage,
829 # SPECIAL FLAGS for -O2
831 '-fupdate-analysis', # virtually useless; relegated to -O2
838 Sort out what we're going to do about optimising. First, the @hsc@
839 flags and regular @cc@ flags to worry about:
841 if ( $OptLevel <= 0 ) {
843 # for this level, we tell the parser -fignore-interface-pragmas
844 push(@HsC_flags, '-fignore-interface-pragmas');
845 # and tell the compiler not to produce them
846 push(@HsC_flags, '-fomit-interface-pragmas');
848 &add_Hsc_flags( @HsC_minusNoO_flags );
849 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
851 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
853 &add_Hsc_flags( @HsC_minusO_flags );
854 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
855 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
856 # but it *is* useful in compiling the garbage collector.
858 } else { # -Ofile, then...
860 &add_Hsc_flags( @HsC_minusO3_flags );
861 push(@HsC_flags, $Oopt_FinalStgProfilingMassage) if $Oopt_FinalStgProfilingMassage;
863 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
866 } # setupOptimiseFlags
870 %************************************************************************
872 \subsection{Check for consistency, etc.}
874 %************************************************************************
876 Sort out @$BuildTag@, @$PROFing@, @$PARing@,
877 @$GRANing@, @$TICKYing@, @UNREGing@:
879 sub setupBuildFlags {
881 # PROFILING stuff after argv mangling:
883 # add -auto sccs even if not profiling !
884 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
887 push(@HsC_flags, $PROFauto) if $PROFauto;
888 push(@HsC_flags, $PROFcaf) if $PROFcaf;
889 push(@HsC_flags, $PROFdict) if $PROFdict;
891 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
893 # Ignore user sccs when auto annotating, but warn when doing so.
894 $PROFignore_scc = '-W' if $PROFauto;
896 #if ( $BuildTag ne '' ) {
897 # local($b) = $BuildDescr{$BuildTag};
898 # if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
899 # if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
900 # if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
902 # # ok to have a user-way profiling build
903 # # eval the profiling opts ... but leave user-way BuildTag
904 # if ($PROFing eq 'p') { &processArgs(split(' ', $SetupOpts{'_p'})); } # eval($EvaldSetupOpts{'_p'}); }
906 if ( $PROFing eq 'p' ) {
907 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
908 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
909 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
912 } elsif ( $PARing eq 'p' ) {
913 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
914 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
917 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
918 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
922 } elsif ( $SMPing eq 's') {
925 } elsif ( $GRANing eq 'g' ) {
926 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
929 } elsif ( $TICKYing eq 't' ) {
932 } elsif ( $UNREGing eq 'u' ) {
933 if ($GhcWithRegisterised eq 'YES') {
939 After the sanity checks, add flags to the necessary parts of the driver pipeline:
942 if ( $BuildTag ne '' ) { # something other than normal sequential...
944 local($Tag) = "${BuildTag}";
945 $Tag =~ s/_//; # move the underscore to the back
947 $HscOut = '-C='; # must go via C
948 &processArgs(split(' ', $SetupOpts{$BuildTag}));
949 # eval($EvaldSetupOpts{$BuildTag});
953 Decide what the consistency-checking options are in force for this run:
956 $HsC_consist_options = "${BuildTag},${DEBUGging}";
957 $Cc_consist_options = "${BuildTag},${DEBUGging}";
960 # Funny place to put it, but why not.
962 if ( $HiSuffix_prelude eq '' ) {
964 if ($CompilingPrelude) {
965 $HiSuffix_prelude = "$HiSuffix" if $CompilingPrelude;
967 local($Tag) = "${BuildTag}";
970 $Tag = "${Tag}_" if $Tag ne '';
971 $HiSuffix_prelude="${Tag}hi";
977 %************************************************************************
979 \subsection{Add on machine-specific C-compiler flags}
981 %************************************************************************
983 Shove on magical machine-specific options. We use \tr{unshift} to
984 stick them on the {\em front} of the arrays, so that ``later''
985 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
987 Note: a few ``always apply'' flags were set at the very beginning.
992 if ($TargetPlatform =~ /^alpha-/) {
993 unshift(@CcBoth_flags, ('-static'));
995 } elsif ($TargetPlatform =~ /^hppa/) {
996 unshift(@CcBoth_flags, ('-static'));
998 # We don't put in '-mlong-calls', because it's only
999 # needed for very big modules (sigh), and we don't want
1000 # to hobble ourselves further on all the other modules
1003 # [Dated comment (gcc-2.6.x?), -mlong-calls is no longer
1004 # a supported gcc HPPA flag]
1005 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
1006 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
1007 # (very nice, but too bad the HP /usr/include files don't agree.)
1009 } elsif ($TargetPlatform =~ /^i386-/) {
1010 # -fno-defer-pop : basically the same game as for m68k
1012 # -fomit-frame-pointer : *must* in .hc files; because we're stealing
1013 # the fp (%ebp) for our register maps.
1015 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1016 unshift(@CcRegd_flags_hc, '-fomit-frame-pointer');
1017 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1019 unshift(@CcBoth_flags, ('-DDONT_WANT_WIN32_DLL_SUPPORT')) if ($Static);
1021 } elsif ($TargetPlatform =~ /^m68k-/) {
1022 # -fno-defer-pop : for the .hc files, we want all the pushing/
1023 # popping of args to routines to be explicit; if we let things
1024 # be deferred 'til after an STGJUMP, imminent death is certain!
1026 # -fomit-frame-pointer : *don't*
1027 # It's better to have a6 completely tied up being a frame pointer
1028 # rather than let GCC pick random things to do with it.
1029 # (If we want to steal a6, then we would try to do things
1030 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1032 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1033 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1034 # maybe gives reg alloc a better time
1035 # also: -fno-defer-pop is not sufficiently well-behaved without it
1037 } elsif ($TargetPlatform =~ /^mips-/) {
1038 unshift(@CcBoth_flags, ('-static'));
1040 } elsif ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1041 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1042 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1043 } elsif ($TargetPlatform =~ /^sparc-/) {
1045 } # end of setupMachOpts
1048 %************************************************************************
1050 \subsection{Set up for warnings}
1052 %************************************************************************
1054 Several warnings are turned on by default. These are supposed to be
1055 the 'I'm pretty sure you've made a mistake here' kind of warnings.
1056 The rest are turned on by the -W and -Wall options, or individually
1057 via their -fwarn and -fno-warn flags.
1060 sub setupWarningFlags {
1061 &add_Hsc_flags( @StandardWarnings );
1065 Same unshifting magic, but for special linker flags.
1067 The configure script determines whether the object file symbol tables
1068 have a leading underscore, and sets @LeadingUnderscore@ accordingly.
1069 (The driver script `sees' the setting of the @LeadingUnderscore@
1070 by having the Makefile prepend it).
1074 local($uscore) = ( ${LeadingUnderscore} eq 'YES' ) ? '_' : '';
1077 (($Ld_main) ? ( '-u', "${uscore}Main_" . $Ld_main . '_closure' ) : ()));
1079 # things that are referenced by the RTS - make sure that we pull 'em in
1081 ( '-u', "${uscore}PrelBase_Izh_static_info"
1082 ,'-u', "${uscore}PrelBase_Czh_static_info"
1083 ,'-u', "${uscore}PrelFloat_Fzh_static_info"
1084 ,'-u', "${uscore}PrelFloat_Dzh_static_info"
1085 ,'-u', "${uscore}PrelAddr_Azh_static_info"
1086 ,'-u', "${uscore}PrelAddr_Wzh_static_info"
1087 ,'-u', "${uscore}PrelAddr_I64zh_static_info"
1088 ,'-u', "${uscore}PrelAddr_W64zh_static_info"
1089 ,'-u', "${uscore}PrelStable_StablePtr_static_info"
1090 ,'-u', "${uscore}PrelBase_Izh_con_info"
1091 ,'-u', "${uscore}PrelBase_Czh_con_info"
1092 ,'-u', "${uscore}PrelFloat_Fzh_con_info"
1093 ,'-u', "${uscore}PrelFloat_Dzh_con_info"
1094 ,'-u', "${uscore}PrelAddr_Azh_con_info"
1095 ,'-u', "${uscore}PrelAddr_Wzh_con_info"
1096 ,'-u', "${uscore}PrelAddr_I64zh_con_info"
1097 ,'-u', "${uscore}PrelAddr_W64zh_con_info"
1098 ,'-u', "${uscore}PrelStable_StablePtr_con_info"
1099 ,'-u', "${uscore}PrelBase_False_static_closure"
1100 ,'-u', "${uscore}PrelBase_True_static_closure"
1101 ,'-u', "${uscore}PrelPack_unpackCString_closure"
1102 ,'-u', "${uscore}PrelException_stackOverflow_closure"
1103 ,'-u', "${uscore}PrelException_heapOverflow_closure"
1104 ,'-u', "${uscore}PrelException_NonTermination_static_closure"
1105 ,'-u', "${uscore}PrelException_PutFullMVar_static_closure"
1106 ,'-u', "${uscore}PrelException_BlockedOnDeadMVar_static_closure"
1107 ,'-u', "${uscore}__init_Prelude"
1109 if (!$NoHaskellMain) {
1110 unshift (@Ld_flags,'-u', "${uscore}PrelMain_mainIO_closure");
1112 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1113 # sometimes we have lots of toc entries...
1114 # unshift(@Ld_flags, ('-Xlinker -bbigtoc -Xlinker -bnoquiet'));
1115 unshift(@Ld_flags, ('-Xlinker -bbigtoc'));
1117 if ($TargetPlatform =~ /^hppa/) {
1118 unshift(@Ld_flags, ('-Xlinker +vnocompatwarnings'));
1121 } # end of setupLinkOpts
1125 %************************************************************************
1127 \subsection{Set up include paths and system-library enslurpment}
1129 %************************************************************************
1131 Now that we know what garbage-collector, etc., are required, we can
1132 finalise our list of libraries to slurp through, and generally Get
1137 # default includes must be added AFTER option processing
1138 if ( ! $INSTALLING ) {
1139 push (@Include_dir, "$TopPwd/${CURRENT_DIR}/${GHC_INCLUDE_DIR}");
1141 push (@Include_dir, "$InstLibDirGhc/includes");
1142 push (@Include_dir, "$InstLibDirGhc/includes");
1144 } # end of setupIncPaths
1149 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1152 foreach $f (@SysLibrary) {
1153 next if $f =~ /_cbits/;
1154 $f .= $BuildTag if $f =~ /^-lHS/;
1157 # Push library HSrts, plus boring clib bit
1158 # Note: The scheduler references a closure from PrelException,
1159 # so the prelude lib is mentioned once again here.
1160 push(@SysLibrary, "-lHSrts${BuildTag} -lHS${BuildTag}");
1163 # RTS compiled with cygwin32, uses the WinMM API
1164 # to implement the itimers, since cygwin.dll does not
1165 # support it. Only reqd. for `ways' that use itimers.
1167 push(@SysLibrary, '-lwinmm') if ($TargetPlatform =~ /-(mingw32|cygwin32)$/);
1168 # Note: currently only tested with mingw, may cause conflicts when linking
1170 push(@SysLibrary, '-lwsock32') if ($TargetPlatform =~ /-(mingw32|cygwin32)$/);
1172 # Push the pvm libraries
1173 if ($BuildTag eq '_mp') {
1174 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1175 push(@SysLibrary, "-L$pvmlib", '-lgpvm3', '-lpvm3');
1176 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1177 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1178 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1179 push(@SysLibrary, '-lsocket', '-lnsl');
1183 # Push the GNU multi-precision arith lib; and the math library
1185 # If this machine has GMP already installed, then we'll get the installed
1186 # lib here, because presumably the one in the tree won't have been built.
1188 if ($LibGmp eq 'not-installed') {
1189 push(@SysLibrary, "-lgmp");
1191 push(@SysLibrary, "-l$LibGmp");
1194 push(@SysLibrary, '-lm') if !( $TargetPlatform =~ /^.*(cygwin32|mingw32)$/ );
1197 %************************************************************************
1199 \subsection{Check that this system was built to do what we are asking}
1201 %************************************************************************
1203 Before continuing we check that the appropriate build is available.
1206 #die "$Pgm: no BuildAvail?? $BuildTag\n" if $BuildDescr{$BuildTag} eq '' ; # sanity
1208 if ( $BuildDescr{$BuildTag} eq '' ) {
1209 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1210 "' \"build\" is not available with your GHC setup.\n";
1211 print STDERR "(It was not configured for it at your site.)\n";
1212 print STDERR $ShortUsage;
1216 } # end of setupSyslibs
1220 %************************************************************************
1222 \subsection{Final miscellaneous setup bits before we start going}
1224 %************************************************************************
1226 Record largest specific heapsize, if any.
1228 sub setupHeapStackSize {
1229 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1230 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1231 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1232 push(@HsC_rts_flags, "-K$Specific_stk_size");
1236 If no input or link files seen, then we let 'em feed in stdin; this is
1237 mainly for debugging.
1241 if ($#Input_file < 0 && $#Link_file < 0) {
1242 @Input_file = ( '-' );
1244 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1245 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n" if -t;
1246 while (<STDIN>) { print INF $_; }
1247 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1252 Tell the world who we are, if they asked.
1254 print STDERR "${ProjectName}, version ${ProjectVersion}\n" if $Verbose;
1257 %************************************************************************
1259 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1261 %************************************************************************
1263 Process the input files; don't continue with linking if there are
1264 problems (global variable @$Status@ non-zero).
1266 foreach $ifile (@Input_file) {
1267 &ProcessInputFile($ifile);
1270 # don't link if there were errors...
1271 if ( $Status > 0 ) {
1272 print STDERR $ShortUsage;
1277 # Link if appropriate.
1278 &runLinker() if $Do_lnkr;
1280 # that... that's all, folks!
1282 exit $Status; # will still be 0 if all went well
1285 %************************************************************************
1287 \section[Driver-do-one-file]{How to process a single input file}
1289 %************************************************************************
1292 sub ProcessInputFile {
1293 local($ifile) = @_; # input file name
1294 local($ifile_root); # root of or basename of input file
1295 local($ofile_target); # ultimate output file we hope to produce
1296 # from input file (need to know for recomp
1297 # checking purposes)
1298 local($hifile_target);# ditto (but .hi file)
1299 local($ofile_c_stub_target);
1300 local($ofile_h_stub_target);
1303 Handle the weirdity of input from stdin.
1305 if ($ifile ne '-') {
1306 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1307 $ofile_target = # may be reset later...
1308 ($Specific_output_file ne '' && ! $Do_lnkr)
1309 ? $Specific_output_file
1310 : &odir_ify($ifile_root, 'o');
1311 $hifile_target= ($Specific_hi_file ne '')
1313 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1314 # NB: may change if $ifile_root isn't module name (??)
1315 ($ofile_c_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.c/;
1316 ($ofile_h_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.h/;
1318 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1319 $ifile_root = '_stdin';
1320 $ofile_target = '_stdout'; # gratuitous?
1321 $hifile_target= '_stdout'; # ditto?
1325 We need to decide what phases of the compilation system we will run
1326 over this file. The defaults are the ones established when processing
1327 flags. (That established what the last phase run for all files is.)
1329 We do the pre-recompilation-checker phases here; the rest later.
1333 Look at the suffix and decide what initial phases of compilation may
1334 be dropped off for this file. Also the rather boring business of
1335 which files are coming-in/going-out.
1337 Again, we'll do the post-recompilation-checker parts of this later.
1339 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1340 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1343 # names of the files to stuff between phases
1344 # defaults are temporaries
1345 local($in_lit2pgm) = $ifile;
1346 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1347 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1348 local($hsc_hi) = "$Tmp_prefix.hi";
1349 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1350 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1351 local($as_out) = $ofile_target;
1353 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
1355 # OK, let's strip off some literate junk..
1357 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
1359 $lit2pgm_hscpp = $ifile;
1365 # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas
1366 &check_for_source_options($lit2pgm_hscpp,$ifile);
1368 # Options found in the source file take a back seat, i.e., we scan
1369 # them first. Only process the command line again if source file
1370 # contained anything of interest *or* there's more than one
1371 # input file (we have to reset the options).
1373 if ( $#Input_file >= 0 || $#File_options >= 0) {
1374 #@File_options = (@File_options, @Cmd_opts);
1376 # Now process the command line
1377 &initDriverGlobals();
1378 &processArgs((@File_options,@Cmd_opts));
1379 print STDERR "\nEffective command line: " .
1380 join(' ',(@File_options,@Cmd_opts)) . "\n" if $Verbose;
1383 # Having got the effective command line scanned, set up
1384 # the various options in prep for some real work.
1386 # check the sanity of the BuildTag we're about to use,
1387 # and if needs be, add some more flags and setup to
1388 # the different phases.
1391 &setupOptimiseFlags();
1394 &setupWarningFlags();
1395 &setupHeapStackSize();
1398 # These two variables need to be set after the
1399 # command-line has been processed and the build options
1400 # have be seen set up. This is because command-line options
1401 # can control whether to compile vias C or not.
1403 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1405 : ( ($HscOut eq '-C=') ? 1 : 0 );
1406 local($do_as) = $Do_as;
1407 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1408 local($hsc_out_c_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.c" : "";
1409 local($hsc_out_h_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.h" : "";
1411 if ($Only_preprocess_hc) { # stop after having run $Cc -E
1414 if ($Only_preprocess_C) { # stop after having run $hscpp
1415 $do_hsc=0; $do_cc = 0; $do_as=0;
1416 } elsif ($ifile =~ /.lhs$/ || $ifile =~ /.hs$/ ) {
1418 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
1419 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1421 $hsc_out_c_stub = '';
1422 $hsc_out_h_stub = '';
1423 } elsif ($ifile =~ /\.c$/) {
1424 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1425 $hsc_out = $ifile; $is_hc_file = 0;
1426 $hsc_out_c_stub = '';
1427 $hsc_out_h_stub = '';
1428 } elsif ($ifile =~ /\.[sS]$/) {
1429 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
1431 } else { # don't know what it is, but nothing to do herein...
1432 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
1435 # hack to avoid running hscpp
1436 $HsCpp = $Cat if ! $Cpp_flag_set;
1438 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) if $do_hscpp;
1442 We now think about whether to run hsc/cc or not (when hsc produces .s
1443 stuff, it effectively takes the place of both phases).
1444 To get the output file name right: for each phase that we are {\em
1445 not} going to run, set its input (i.e., the output of its preceding
1446 phase) to @"$ifile_root.<suffix>"@.
1449 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
1452 # Warning issued if -keep-hc-file-too is used without
1453 # -fvia-C (or the equivalent)
1455 if ( $HscOut ne '-C=' && $Keep_hc_file_too ) {
1456 print STDERR "$Pgm: warning: Native code generator to be used, -keep-hc-file-too will be ignored\n";
1459 if (! $do_cc && ! $do_as) { # stopping after hsc
1460 $hsc_out = ($Specific_output_file ne '')
1461 ? $Specific_output_file
1462 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
1464 $ofile_target = $hsc_out; # reset
1467 if (! $do_as) { # stopping after gcc (or hsc)
1468 $cc_as = ($Specific_output_file ne '')
1469 ? $Specific_output_file
1470 : &odir_ify($ifile_root, ( $Only_preprocess_hc ) ? 'i' : 's');
1472 $ofile_target = $cc_as; # reset
1478 Now the Haskell compiler, C compiler, and assembler
1482 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
1483 $ofile_target, $hifile_target,
1484 $going_interactive);
1487 if (-f $hsc_out_h_stub) {
1488 &run_something("cp $hsc_out_h_stub $ofile_h_stub_target", 'Copy foreign export header file');
1491 if (-f $hsc_out_c_stub) {
1492 &run_something("rm -f $ofile_c_stub_target && echo '#include \"${ofile_h_stub_target}\"' > $ofile_c_stub_target && cat $hsc_out_c_stub >> $ofile_c_stub_target", 'Copy foreign export C stubs');
1493 local ($hsc_out_s_stub);
1494 local ($hsc_out_o_stub);
1495 ($ofile_s_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$/\.s/;
1496 ($ofile_o_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$//;
1498 $ofile_o_stub_target = &osuf_ify($ofile_o_stub_target, "o");
1500 &runGcc (0, $ofile_c_stub_target, $ofile_s_stub_target);
1501 &runAs ($ofile_o_stub_target, $ofile_s_stub_target);
1504 # Bring the C stub protos into scope when compiling the .hc file.
1506 push (@CcInjects, "#include \"${hsc_out_h_stub}\"\n");
1507 # Hack - ensure that the stub .h file is included in the OPTIONS section
1508 # if the .hc file is saved.
1509 push (@File_options, "-#include \"${ofile_h_stub_target}\"\n");
1514 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
1515 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root) if ! $Only_preprocess_hc;
1518 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
1520 # save a copy of the .s file..
1521 &saveIntermediate($ifile_root , "s" , $cc_as) if ($do_as && $Keep_s_file_too);
1522 &runAs($as_out, $ifile_root) if $do_as;
1525 Finally, decide what to queue up for linker input.
1527 # tentatively assume we will eventually produce linker input:
1528 push(@Link_file, &odir_ify($ifile_root, 'o'));
1530 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
1532 if ( $ifile !~ /\.(lhs|hs|hc|c|s|a|S)$/ && $ifile !~ /_hc$/ ) {
1533 # There's sometimes confusion regarding .hi files; users
1534 # supplying them on the command line.
1535 if ( $ifile =~ /\.hi$/ ) {
1536 print STDERR "$Pgm: warning: found `$ifile' on command line; interface files should not be supplied here - ignoring it.\n";
1538 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n";
1540 # oops; we tentatively pushed the wrong thing; fix & do the right thing
1541 pop(@Link_file); push(@Link_file, $ifile);
1545 } # end of ProcessInputFile
1548 %************************************************************************
1550 \section[Driver-run-phases]{Routines to run the various phases}
1552 %************************************************************************
1556 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
1560 # Only add #line pragma if we're going to need it.
1561 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && " if ($Cpp_flag_set);
1562 $to_do .= "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
1564 push(@Files_to_tidy, $lit2pgm_hscpp );
1566 &run_something($to_do, 'literate pre-processor');
1572 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
1576 # Strictly speaking, echoing of the following line pragma is only required
1577 # on non-delit'ed input, as we've already added it during de-lit. However,
1578 # hscpp will then add a {-# LINE 1 "$lit2pgm_hsc" -} to the top of the file,
1579 # which is not very informative (but harmless). Hence, we uniformly have
1580 # {-# LINE 1 "$in_lit2pgm" #-} as the first line to all cpp'ed hsc input.
1582 $to_do = "echo '{-# LINE 1 \"$in_lit2pgm\" -}' > $hscpp_hsc && ";
1584 if ($HsCpp eq $Cat) {
1585 $to_do .= "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
1586 push(@Files_to_tidy, $hscpp_hsc );
1587 &run_something($to_do, 'Ineffective C pre-processor');
1589 local($includes) = '-I' . join(' -I',@Include_dir);
1590 $to_do .= "$HsCpp $Verbose @HsCpp_flags @HsSourceCppOpts $includes $lit2pgm_hscpp >> $hscpp_hsc";
1591 push(@Files_to_tidy, $hscpp_hsc );
1592 &run_something($to_do, 'Haskellised C pre-processor');
1595 if ( $Only_preprocess_C ) {
1596 $to_do = "$Cat $hscpp_hsc";
1597 &run_something($to_do, '');
1605 sub runHscAndProcessInterfaces {
1606 local($ifile, $hscpp_hsc, $ifile_root,
1607 $ofile_target, $hifile_target,
1608 $going_interactive) = @_;
1610 # $ifile is the original input file
1611 # $hscpp_hsc post-unlit, post-cpp, etc., input file
1612 # $ifile_root input filename minus suffix
1613 # $ofile_target the output file that we ultimately hope to produce
1614 # $hifile_target the .hi file ... (ditto)
1616 local($source_unchanged) = 1;
1618 # Check if the source file is up to date relative to the target; in
1619 # that case we say "source is unchanged" and let the compiler bail out
1620 # early if the import usage information allows it.
1622 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
1623 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
1625 # The informational messages below are now conditional on -v being set -- SOF
1626 if ( $ofile_target ne "_stdin.s" && ! -f $ofile_target ) {
1627 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n" if $Verbose;
1628 $source_unchanged = 0;
1631 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
1632 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
1634 if ( $hifile_target ne "_stdout" && ! -f $hifile_target ) {
1635 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n" if $Verbose;
1636 $source_unchanged = 0;
1639 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
1640 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
1642 if ( $ofile_target ne "_stdin.s" && $i_mtime > $o_mtime) {
1643 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n" if $Verbose;
1644 $source_unchanged = 0;
1647 # Tell the compiler which version we're using
1648 push(@HsC_flags, "-fhi-version=${ProjectVersionInt}");
1650 # So if source_unchanged is still "1", we pass on the good news to the compiler
1651 # The -recomp flag can disable this, forcing recompilation
1652 if ($Do_recomp_chkr && $source_unchanged) {
1653 push(@HsC_flags, '-fsource-unchanged');
1656 # Indicate whether we're static or not.
1657 # This will only ever
1658 push(@HsC_flags, '-static') if $Static;
1662 &runHsc($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive);
1664 # See if it bailed out early, saying nothing needed doing.
1665 # We work this out by seeing if it created an output .hi file
1667 if ( ! -f $hsc_hi && $ProduceHi !~ /-nohifile=/ ) {
1668 # Doesn't exist, so we bailed out early.
1669 # Tell the C compiler and assembler not to run
1670 $do_cc = 0; $do_as = 0;
1672 # Update dependency info, touch both object file and
1673 # interface file, so that the following invariant is
1676 # a dependent module's interface file should after recompilation
1677 # checking be newer than the interface files of its imports.
1679 # That is, if module A's interface file changes, then module B
1680 # (which import from A) needs to be checked.
1681 # If A's change does not affect B, which causes the compiler to bail
1682 # out early, we still need to touch the interface file of B. The reason
1683 # for this is that B may export A's interface.
1685 &run_something("touch $ofile_target",
1686 "Touch $ofile_target, to propagate dependencies") if $HscOut ne '-N=';
1687 &run_something("touch $hifile_target",
1688 "Touch $hifile_target, to propagate dependencies") if $ProduceHi =~ /-nohifile=/ ;
1692 # Didn't bail out early (new .hi file) so we thunder on
1694 # If non-interactive, heave in the consistency info at the end
1695 # NB: pretty hackish (depends on how $output is set)
1696 if ( ! $going_interactive ) {
1697 if ( $HscOut eq '-C=' ) {
1698 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
1700 } elsif ( $HscOut eq '-S=' ) {
1701 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
1702 $consist =~ s/,/./g;
1703 $consist =~ s/\//./g;
1704 $consist =~ s/-/_/g;
1705 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
1706 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
1708 &run_something($to_do, 'Pin on Haskell consistency info');
1712 # Interface-handling is important enough to live off by itself
1713 if ( $ProduceHi !~ /-nohifile=/ ) { # If we've produced one, process it.
1714 require('ghc-iface.prl') || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
1715 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
1717 # if we're going to split up object files,
1718 # we inject split markers into the .hc file now
1719 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
1720 &inject_split_markers ( $hsc_out );
1723 # save a copy of the .hc file, even if we are carrying on...
1724 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
1725 &saveIntermediate($ifile_root , "hc" , $hsc_out);
1735 local($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive) = @_;
1737 &makeHiMap() unless $HiMapDone;
1738 push(@HsC_flags, "\"-himap=$HiIncludeString\"");
1739 push(@HsC_flags, "\"-himap-sep=${SplitMarker}\"");
1741 # here, we may produce .hc/.s and/or .hi files
1742 local($output) = '';
1743 #@Files_to_tidy = ();
1745 if ( $going_interactive ) {
1746 # don't need .hi unless we're going to show it on stdout:
1747 $ProduceHi = '-nohifile=' if ! ($HiOnStdout || $Specific_hi_file ne '' );
1748 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
1751 # set up for producing output/.hi; note that flag twiddling
1752 # may mean that nothing will actually be produced:
1753 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out -F=$hsc_out_c_stub -FH=$hsc_out_h_stub";
1754 push(@Files_to_tidy, $hsc_hi, $hsc_out, $hsc_out_c_stub, $hsc_out_h_stub );
1756 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
1757 if ( $CollectingGCstats ) {
1758 push(@HsC_rts_flags, "-S$ifile_root.stat");
1759 push(@Files_to_tidy, "$ifile_root.stat");
1762 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
1763 # emit nofibbish time/bytes-alloc stats to stderr;
1764 # see later .stat file post-processing
1765 print STDERR "warning: both -Rgc-stats and -Rghc-timing used, -Rghc-timing wins." if $CollectingGCstats;
1766 push(@HsC_rts_flags, "-S$Tmp_prefix.stat");
1767 push(@Files_to_tidy, "$Tmp_prefix.stat");
1771 if ($Specific_dump_file ne '') {
1772 $dump = "2>> $Specific_dump_file";
1773 $Using_dump_file = 1;
1777 # Win32 only: If the command processor used by system()
1778 # exec()s the application as an ordinary Win32 executable,
1779 # we're in trouble here, since the command line is likely
1780 # to be > 255 chars long. To work around this situation,
1781 # $HsC also understands `at-files', i.e., `@file' on the
1782 # command line will cause $HsC to add the contents of `file'
1783 # to the command line.
1785 # [ Note: support for `at-files' is not compiled in by default ]
1786 $cmd_line_opts_via_at_file=0;
1787 if ($cmd_line_opts_via_at_file) {
1789 local($to_do_opts) = "$Tmp_prefix.opts";
1790 open(OPTS, "> $Tmp_prefix.opts") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.opts\n");
1791 print OPTS "$dump @HsC_flags $CoreLint $USPLint $StgLint $Verbose";
1793 $to_do = "$HsC $hscpp_hsc \@$Tmp_prefix.opts $output +RTS @HsC_rts_flags";
1797 $to_do = "$HsC $hscpp_hsc $dump @HsC_flags $CoreLint $USPLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
1799 &run_something($to_do, 'Haskell compiler');
1801 # finish business w/ nofibbish time/bytes-alloc stats
1802 &process_ghc_timings() if $CollectGhcTimings;
1806 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
1807 of (module-name, pathname) pairs, one per line, separated by a space.
1810 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1814 # collect in %HiMap; write later; also used elsewhere in driver
1816 local($mod, $path, $d, $e);
1818 # reset the global variables:
1820 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1822 foreach $d ( @Import_dir ) {
1823 if ($HiIncludeString) {
1824 $HiIncludeString = "$HiIncludeString${SplitMarker}${d}%.${HiSuffix}";
1826 $HiIncludeString = "$d%.${HiSuffix}";
1831 foreach $d ( @SysImport_dir ) {
1832 if ($HiIncludeString) {
1833 $HiIncludeString = "$HiIncludeString${SplitMarker}${d}%.${HiSuffix_prelude}";
1835 $HiIncludeString = "${d}%.${HiSuffix_prelude}";
1844 Invoke the 'linker' - either the standard linker or the one used to build
1850 local($libdirs) = '';
1852 # append last minute flags linker and consistency flags
1857 # glue them together:
1858 push(@UserLibrary_dir, @SysLibrary_dir);
1860 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1862 # for a linker, use an explicitly given one, or the going C compiler ...
1863 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1865 if ( ($Specific_output_file eq '') &&
1866 ( ($TargetPlatform eq 'i386-unknown-cygwin32') ||
1867 ($TargetPlatform eq 'i386-unknown-mingw32')) ) {
1868 $Specific_output_file = 'main.exe';
1869 print STDERR "Output file not specified, defaulting to \"main.exe\"\n";
1872 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1873 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1875 &prepareWin32DllLink(1);
1877 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $libdirs @UserLibrary @SysLibrary";
1878 &run_something($to_do, 'Linker');
1880 # finally, check the consistency info in the binary
1881 local($executable) = $Files_to_tidy[0];
1882 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1885 # dynamically load consistency-chking code; then do it.
1886 require('ghc-consist.prl')
1887 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1889 &chk_consistency_info ( $executable );
1892 # if PVM parallel stuff, we do truly weird things.
1893 # Essentially: (1) move the executable over to where PVM expects
1894 # to find it. (2) create a script in place of the executable
1895 # which will cause the program to be run, via SysMan.
1896 if ( $PARing eq 'p' ) {
1897 local($pvm_executable) = $executable;
1898 local($pvm_executable_base);
1900 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1901 local($pwd) = `pwd`;
1903 $pwd =~ s/^\/tmp_mnt//;
1904 $pvm_executable = "$pwd/$pvm_executable";
1907 $pvm_executable =~ s|/|=|g; # make /s into =s
1908 $pvm_executable_base = $pvm_executable;
1910 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1911 . "/$pvm_executable";
1913 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1915 # OK, now create the magic script for "$executable"
1916 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1917 print EXEC <<EOSCRIPT1;
1918 eval 'exec perl -S \$0 \${1+"\$@"}'
1919 if \$running_under_some_shell;
1920 # =!=!=!=!=!=!=!=!=!=!=!
1921 # This script is automatically generated: DO NOT EDIT!!!
1922 # Generated by Glasgow Haskell, version ${ProjectVersion}
1923 # ngoqvam choHbogh vaj' vIHoHnISbej !!!!
1925 \$pvm_executable = '$pvm_executable';
1926 \$pvm_executable_base = '$pvm_executable_base';
1927 \$SysMan = '$SysMan';
1930 print EXEC <<\EOSCRIPT2;
1931 # first, some magical shortcuts to run "commands" on the binary
1933 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1935 system("$cmd $pvm_executable");
1939 # OK, really run it; process the args first
1940 $ENV{'PE'} = $pvm_executable_base;
1942 $nprocessors = 2; # the default
1946 # ToDo: handle --RTS
1947 args: while ($a = shift(@ARGV)) {
1948 if ( $a eq '+RTS' ) {
1950 } elsif ( $a eq '-RTS' ) {
1953 if ( $a eq '-d' && $in_RTS_args ) {
1955 } elsif ( $a =~ /^-qN(\d+)/ && $in_RTS_args ) {
1957 } elsif ( $a =~ /^-qp(\d+)/ && $in_RTS_args ) {
1960 push(@nonPVM_args, $a);
1964 local($return_val) = 0;
1965 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
1967 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
1970 close(EXEC) || die "Failed closing $executable\n";
1971 chmod 0755, $executable;
1979 # append last minute flags linker and consistency flags
1984 # glue them together:
1985 push(@UserLibrary_dir, @SysLibrary_dir);
1987 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1989 &prepareWin32DllLink(0);
1991 local ($bld_dll) = "dllwrap";
1993 local ($output) = ($Specific_output_file ne '') ? "$Specific_output_file" : 'HSdll.dll';
1994 local ($output_dir);
1995 local ($output_file);
1996 local ($output_lib, $output_def);
1998 ($output_dir = $output) =~ s|(.*/)[^/]+$|$1|;
1999 $output_dir = "" if ($output_dir eq $output);
2000 ($output_file = $output) =~ s|.*/([^/]+)$|$1|;
2002 ($output_lib = $output_file) =~ s|(.+)\.[^\.]*$|${output_dir}lib$1_imp.a|;
2003 ($output_def = $output_file) =~ s|(.+)\.[^\.]*$|${output_dir}$1.def|;
2005 push (@Dll_flags, "-mno-cygwin --target=i386-mingw32") if ($TargetPlatform =~ /^.*mingw32$/);
2006 push (@Dll_flags, "--output-lib $output_lib");
2007 # If the "--def " option hasn't been supplied, assume everything
2008 # is going to be exported via the DLL.."
2009 if (!grep(/--def/, @Dll_flags)) {
2010 push (@Dll_flags, "--export-all --output-def $output_def");
2013 local($to_do) = "$bld_dll @Dll_flags -o $output @Link_file $libdirs @UserLibrary @SysLibrary";
2014 # Make sure the user sees this piece of magic.
2015 print STDERR "$to_do\n" if (!$Verbose);
2016 &run_something($to_do, 'DLL creator');
2019 sub prepareWin32DllLink
2021 local($linking_main) = @_;
2024 # Win32 DLLs - link with import libraries, not the real archives.
2026 if ( $TargetPlatform =~ /-mingw32$/ ) {
2029 # If the libraries have the form libHSfoo.a, we
2030 # transform that into libHSfoo_imp.a - the import
2031 # library of the DLL.
2033 foreach $a ( @SysLibrary ) {
2034 $a = "${a}_imp" if ($a =~ /^-lHS/);
2036 foreach $a ( @UserLibrary ) {
2037 $a = "${a}_imp" if ($a =~ /^-lHS/);
2039 push(@Link_file, ( $INSTALLING ) ? "$InstLibDirGhc/Main.dll_o"
2040 : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/Main.dll_o") if $linking_main;
2041 push(@Link_file, ( $INSTALLING ) ? "$InstLibDirGhc/PrelMain.dll_o"
2042 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std/PrelMain.dll_o") if $linking_main;
2044 push(@Ld_flags, "-mno-cygwin");
2050 %************************************************************************
2052 \section[Driver-misc-utils]{Miscellaneous utilities}
2054 %************************************************************************
2056 %************************************************************************
2058 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
2060 %************************************************************************
2064 local($ofile,$def_suffix) = @_;
2066 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
2070 local($orig_file, $def_suffix) = @_;
2071 if ($Specific_output_dir eq '') { # do nothing
2072 &osuf_ify($orig_file, $def_suffix);
2074 local ($orig_file_only);
2075 ($orig_file_only = $orig_file) =~ s|.*/||;
2076 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
2083 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
2085 local($includes) = '-I' . join(' -I', @Include_dir);
2088 local($c_flags) = "@CcBoth_flags";
2089 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2091 $c_flags .= " -mno-cygwin" if ( $TargetPlatform =~ /-mingw32$/ );
2093 # "input" files to use that are not in some weird directory;
2094 # to help C compilers grok .hc files [ToDo: de-hackify]
2095 local($cc_help) = "ghc$$.c";
2096 local($cc_help_s) = "ghc$$.s";
2099 $s_output = (($is_hc_file && $DoAsmMangling) || $TargetPlatform =~ /^(powerpc|rs6000|hppa)/) ? $cc_as_o : $cc_as;
2100 $c_flags .= " @CcRegd_flags";
2101 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2103 # C compiler won't like the .hc extension. So we create
2104 # a tmp .c file which #include's the needful.
2105 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2106 if ( $is_hc_file ) {
2110 # user may have asked for #includes to be injected...
2111 print TMP @CcInjects if $#CcInjects >= 0;
2113 # Straight .c files may want to know that they're being used
2114 # with a particular version of GHC, so we define __GLASGOW_HASKELL__ for their benefit.
2115 print TMP "#define __GLASGOW_HASKELL__ ${ProjectVersionInt}\n";
2117 # heave in the consistency info
2118 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2120 print TMP "#include \"$hsc_out\"\n";
2121 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2123 # Don't redirect stderr into intermediate file if slamming output onto stdout (e.g., with -E)
2124 local($fuse_stderr) = "2>&1" if ! $Only_preprocess_hc;
2125 local($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 )";
2127 if ( $Only_preprocess_hc ) { # HACK ALERT!
2128 $to_do =~ s/ -S\b//g;
2130 push(@Files_to_tidy, $cc_help, $cc_help_s, $s_output );
2131 $PostprocessCcOutput = 1 if ! $Only_preprocess_hc; # hack, dear hack...
2132 &run_something($to_do, 'C compiler');
2133 $PostprocessCcOutput = 0;
2134 if ( $Only_preprocess_hc ) {
2135 system("$Cat $Tmp_prefix.ccout");
2137 unlink($cc_help, $cc_help_s);
2143 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2145 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2147 if ($is_hc_file && $DoAsmMangling) {
2148 # dynamically load assembler-fiddling code, which we are about to use:
2149 require('ghc-asm.prl')
2150 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2151 # post-process the assembler [.hc files only]
2152 &mangle_asm($cc_as_o, $cc_as);
2154 } elsif ($TargetPlatform =~ /^hppa/) {
2155 # minor mangling of non-threaded files for hp-pa only
2156 require('ghc-asm.prl')
2157 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2158 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2160 } elsif ($TargetPlatform =~ /^powerpc|^rs6000/) {
2161 # minor mangling of non-threaded files for powerpcs and rs6000s
2162 require('ghc-asm.prl')
2163 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-powerpc.prl!\n");
2164 &mini_mangle_asm_powerpc($cc_as_o, $cc_as);
2167 # save a copy of the .s file, even if we are carrying on...
2168 #if ($do_as && $Keep_s_file_too) {
2169 # &saveIntermediate($ifile_root , "s" , $cc_as);
2176 local($as_out, $ifile_root) = @_;
2178 local($asmblr) = ( $As ) ? $As : $CcRegd;
2180 # need to add the -I flags in case the file is going through cpp (.S files)
2181 local($includes) = '-I' . join(' -I', @Include_dir);
2183 if ( ! $SplitObjFiles || $ifile_root =~ /_stub\.s$/ ) {
2184 local($to_do) = "$asmblr -o $as_out -c @As_flags $includes $cc_as";
2185 push(@Files_to_tidy, $as_out );
2186 &run_something($to_do, 'Unix assembler');
2188 } else { # more complicated split-ification...
2190 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2192 # If -odir is used, great, just pin it in front of the
2193 # generated split file names. If it hasn't been set, we
2194 # snatch it from the ifile_root.
2198 if ( $Specific_output_dir eq '' ) {
2199 $Specific_output_dir = ${ifile_root};
2202 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2203 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2204 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2205 push(@Files_to_tidy, $split_out );
2207 &run_something($to_do, 'Unix assembler');
2213 %************************************************************************
2215 \subsection[Driver-run-something]{@run_something@: Run a phase}
2217 %************************************************************************
2221 local($str_to_do, $tidy_name) = @_;
2223 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2224 print STDERR "$str_to_do\n" if $Verbose;
2226 if ($Using_dump_file) {
2227 open(DUMP, ">> $Specific_dump_file")
2228 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2229 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2231 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2234 local($return_val) = 0;
2236 if ( length($str_to_do) > 4000) {
2237 # 4000 - on the random side, just like the *real* ARG_MAX
2240 # With some shells, command lines of this length may
2241 # very well cause trouble. To safeguard against this, we squirrel the
2242 # command into a file and exec that.
2243 local ($sh) = $ENV{'REAL_SHELL'};
2244 print STDERR "Backup plan A: saving cmd line in ${Tmp_prefix}.sh and executing that with $sh\n" if $Verbose;
2245 open (TEMP, "> ${Tmp_prefix}.sh") ||
2246 &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.sh'\n");
2247 print TEMP "$Time $str_to_do\n";
2249 &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.sh'\n");
2250 system("$sh $Tmp_prefix.sh");
2253 unlink "${Tmp_prefix}.sh";
2255 system("$Time $str_to_do");
2259 if ( $PostprocessCcOutput ) { # hack, continued
2260 open(CCOUT, "< $Tmp_prefix.ccout")
2261 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2263 next if /call-clobbered/;
2264 next if /control reaches end/;
2265 next if /from .*Stg\.h:/;
2266 next if /from ghc\d+.c:\d+:/;
2267 next if /: At top level:$/;
2268 next if /: In function \`.*\':$/;
2269 next if /\`ghc_cc_ID\' defined but not used/;
2272 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2275 local($signal_num) = $? & 127;
2276 local($dumped_core) = $? & 128;
2278 if ($signal_num != 0) {
2279 print STDERR "$tidy_name received signal $signal_num";
2280 if ($dumped_core != 0) {
2281 print STDERR " (core dumped)";
2286 if ($return_val != 0) {
2287 if ($Using_dump_file) {
2288 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2290 &tidy_up_and_die($return_val, '');
2293 $Using_dump_file = 0;
2297 %************************************************************************
2299 \subsection[Driver-ghc-timing]{Emit nofibbish GHC timings}
2301 %************************************************************************
2303 NB: nearly the same as in @runstdtest@ script.
2306 sub process_ghc_timings {
2307 local($StatsFile) = "$Tmp_prefix.stat";
2308 local($SysSpecificTiming) = 'ghc';
2310 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2311 local($max_live) = 0;
2312 local($tot_live) = 0; # for calculating residency stuff
2313 local($tot_samples) = 0;
2316 if (! /Gen:\s+0/ && ! /Minor/ && /^\s*\d+\s+\d+\s+(\d+)\s+\d+\.\d+/ ) {
2317 $max_live = $1 if $max_live < $1;
2321 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2323 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2324 $MaxResidency = $1; $ResidencySamples = $2;
2327 $GCs = $1 if /^\s*([0-9,]+) (collections? in generation 0|garbage collections? performed)/;
2329 if ( /^\s+([0-9]+)\s+Mb total memory/ ) {
2333 # The presence of -? in the following pattern is only there to
2334 # accommodate 0.29 && <= 2.05 RTS'
2335 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*-?(\d+\.\d\d)s elapsed\)/ ) {
2336 $InitTime = $1; $InitElapsed = $2;
2337 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2338 $MutTime = $1; $MutElapsed = $2;
2339 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2340 $GcTime = $1; $GcElapsed = $2;
2343 close(STATS) || die "Failed when closing $StatsFile\n";
2344 if ( $tot_samples > 0 ) {
2345 $ResidencySamples = $tot_samples;
2346 $MaxResidency = $max_live;
2347 $AvgResidency = int ($tot_live / $tot_samples) ;
2350 # warn about what we didn't find
2351 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2352 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2353 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2354 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2355 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2356 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2357 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2358 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2360 # things we didn't necessarily expect to find
2361 $MaxResidency = 0 unless defined($MaxResidency);
2362 $AvgResidency = 0 unless defined($AvgResidency);
2363 $ResidencySamples = 0 unless defined($ResidencySamples);
2366 $BytesAlloc =~ s/,//g;
2367 $MaxResidency =~ s/,//g;
2369 $InitTime =~ s/,//g;
2370 $InitElapsed =~ s/,//g;
2372 $MutElapsed =~ s/,//g;
2374 $GcElapsed =~ s/,//g;
2376 # print out what we found
2377 print STDERR "<<$SysSpecificTiming: ",
2378 "$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)",
2379 " :$SysSpecificTiming>>\n";
2386 %************************************************************************
2388 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2390 %************************************************************************
2394 local($to_do) = "\n$Rm $Tmp_prefix*";
2395 if ( $Tmp_prefix !~ /^\s*$/ ) {
2396 print STDERR "$to_do\n" if $Verbose;
2401 sub tidy_up_and_die {
2402 local($return_val, $msg) = @_;
2404 # delete any files to tidy
2405 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2406 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2410 exit (($return_val == 0) ? 0 : 1);
2414 %************************************************************************
2416 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2418 %************************************************************************
2420 Some command-line arguments take an argument, e.g.,
2421 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2422 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2423 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2425 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2426 gobble the second argument (and probably set the heapsize to something
2430 local(*Args, $option, $rest_of_arg) = @_;
2432 if ($rest_of_arg ne '') {
2433 return($rest_of_arg);
2434 } elsif ($#Args >= 0) {
2435 local($temp) = $Args[0]; shift(@Args);
2438 print STDERR "$Pgm: no argument following $option option\n";
2449 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2451 foreach $f ( @HsC_antiflags ) {
2452 return(0) if $flag eq $f;
2454 # foreach $f ( @HsC_flags ) {
2455 # return(0) if $flag eq $f;
2460 sub squashHscFlag { # pretty terrible
2464 foreach $f ( @HsC_flags ) {
2465 if ($flag eq $f) { $f = ''; }
2473 foreach $f ( @flags ) {
2474 push( @HsC_flags, $f ) if &isntAntiFlag($f);
2479 To add another system library, you'll need to augment the
2480 Supported_syslibs variable with name and info on your addition
2481 to the syslib family. The info bit consist of the following:
2483 - interface file directory
2484 see the misc or posix entry for how to distinguish
2485 between using installed and build tree directories.
2487 - directory location of archives
2489 - location of (way-independent) C support libs.
2490 not all libraries need this - if you don't, just
2491 give the empty string.
2492 - list of syslibs you depend on.
2494 - additional ghc command line flags that should be used.
2495 - additional C compiler command line flags that should be used.
2501 # Hash to keep track of
2502 %Syslibs_added = ();
2505 local($syslib) = @_;
2507 # Lifting this out of this sub brings it out of scope - why??
2508 %Supported_syslibs =
2510 [ # where to slurp interface files from
2512 ? "$InstLibDirGhc/imports/lang"
2513 : "$TopPwd/hslibs/lang:$TopPwd/hslibs/lang/monads"
2515 , # where to find the archive to use when linking
2518 : "$TopPwd/hslibs/lang"
2520 , # where to find the cbits archive to use when linking
2523 : "$TopPwd/hslibs/lang/cbits"
2525 , '' # Syslib dependencies
2526 , '' # extra ghc opts
2527 , '' # extra cc opts
2528 , '' # extra ld opts
2532 [ # where to slurp interface files from
2534 ? "$InstLibDirGhc/imports/concurrent"
2535 : "$TopPwd/hslibs/concurrent"
2537 , # where to find the archive to use when linking
2540 : "$TopPwd/hslibs/concurrent"
2542 , '' # where to find the cbits archive to use when linking
2543 , '' # Syslib dependencies
2544 , '' # extra ghc opts
2545 , '' # extra cc opts
2546 , '' # extra ld opts
2550 [ # where to slurp interface files from
2552 ? "$InstLibDirGhc/imports/data"
2553 : "$TopPwd/hslibs/data:$TopPwd/hslibs/data/edison:$TopPwd/hslibs/data/edison/Assoc:$TopPwd/hslibs/data/edison/Coll:$TopPwd/hslibs/data/edison/Seq"
2555 , # where to find the archive to use when linking
2558 : "$TopPwd/hslibs/data"
2560 , '' # where to find the cbits archive to use when linking
2561 , 'lang' # Syslib dependencies
2562 , '' # extra ghc opts
2563 , '' # extra cc opts
2564 , '' # extra ld opts
2568 [ # where to slurp interface files from
2570 ? "$InstLibDirGhc/imports/net"
2571 : "$TopPwd/hslibs/net"
2573 , # where to find the archive to use when linking
2576 : "$TopPwd/hslibs/net"
2578 , # where to find the cbits archive to use when linking
2581 : "$TopPwd/hslibs/net/cbits"
2583 , 'lang text' # Syslib dependencies
2584 , '' # extra ghc opts
2585 , '' # extra cc opts
2586 , ( $TargetPlatform =~ /-solaris2$/ ? '-lnsl -lsocket' : '')
2590 [ # where to slurp interface files from
2592 ? "$InstLibDirGhc/imports/posix"
2593 : "$TopPwd/hslibs/posix"
2595 , # where to find the archive to use when linking
2598 : "$TopPwd/hslibs/posix"
2600 , # where to find the cbits archive to use when linking
2603 : "$TopPwd/hslibs/posix/cbits"
2605 , 'lang' # Syslib dependencies
2606 , '' # extra ghc opts
2607 , '' # extra cc opts
2608 , '' # extra ld opts
2612 [ # where to slurp interface files from
2614 ? "$InstLibDirGhc/imports/text"
2615 : "$TopPwd/hslibs/text:$TopPwd/hslibs/text/html:$TopPwd/hslibs/text/haxml/lib"
2617 , # where to find the archive to use when linking
2620 : "$TopPwd/hslibs/text"
2622 , # where to find the cbits archive to use when linking
2625 : "$TopPwd/hslibs/text/cbits"
2627 , 'lang data' # Syslib dependencies
2628 , '' # extra ghc opts
2629 , '' # extra cc opts
2630 , '' # extra ld opts
2634 [ # where to slurp interface files from
2636 ? "$InstLibDirGhc/imports/util"
2637 : "$TopPwd/hslibs/util:$TopPwd/hslibs/util/check"
2639 , # where to find the archive to use when linking
2642 : "$TopPwd/hslibs/util"
2644 , # where to find the cbits archive to use when linking
2647 : "$TopPwd/hslibs/util/cbits"
2649 , 'lang concurrent' # Syslib dependencies
2650 , '' # extra ghc opts
2651 , '' # extra cc opts
2652 , '' # extra ld opts
2656 [ # where to slurp interface files from
2658 ? "$InstLibDirGhc/imports/win32"
2659 : "$TopPwd/hslibs/win32/src"
2661 , # where to find the archive to use when linking
2664 : "$TopPwd/hslibs/win32/src"
2667 , 'lang' # Syslib dependencies
2668 , '' # extra ghc opts
2669 , '' # extra cc opts
2670 , '-luser32 -lgdi32' # extra ld opts
2674 [ # where to slurp interface files from
2676 ? "$InstLibDirGhc/imports/com"
2677 : "$TopPwd/hdirect/lib"
2679 , # where to find the archive to use when linking
2682 : "$TopPwd/hdirect/lib"
2685 , 'lang' # Syslib dependencies
2686 , '' # extra ghc opts
2687 , '' # extra cc opts
2688 , '-luser32 -lole32 -loleaut32 -ladvapi32'
2693 # check if it's supported..
2695 if ( !exists $Supported_syslibs{$syslib} ) {
2696 print STDERR "$Pgm: no such system library (-syslib): $syslib\n";
2701 # This check is here to avoid syslib loops from
2702 # spoiling the party. A side-effect of it is that
2703 # it disallows multiple mentions of a syslib on a command-line,
2704 # explicit *and* implicit ones (i.e., "-syslib lang -syslib misc"
2705 # is not equal to "-syslib lang -syslib misc -syslib lang",
2706 # which it needs to be)
2708 # Since our current collection of syslibs don't have any
2709 # loops, this test is disabled.
2711 # ToDo: loop avoidance scheme when the need arises
2713 #return if ( exists $Syslibs_added{$syslib} );
2715 $Syslibs_added{$syslib} = 1;
2717 local ($hi_dirs, $lib_dir, $lib_cbits_dir,
2718 $syslib_deps, $syslib_ghc_opts,
2719 $syslib_cc_opts, $syslib_ld_opts) = @{ $Supported_syslibs{$syslib} };
2721 foreach(split(':',$hi_dirs)) {
2722 unshift(@SysImport_dir, $_);
2724 push(@SysLibrary_dir, $lib_dir);
2725 push(@SysLibrary_dir, $lib_cbits_dir) if ( $lib_cbits_dir ne '');
2727 push(@SysLibrary, "-lHS$syslib");
2728 push(@SysLibrary, "-lHS${syslib}_cbits") if ( $lib_cbits_dir ne '');
2729 push(@SysLibrary, $syslib_ld_opts) if ($syslib_ld_opts ne '');
2731 # Add on any extra dependencies.
2732 foreach $lib (split(' ',$syslib_deps)) {
2738 Source files may have {-# OPTIONS ... #-} pragmas at the top, containing
2739 command line options we want to append to collection of commands specified
2740 directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell
2741 file for any such pragmas:
2744 sub check_for_source_options {
2745 local($file,$ifile) = @_;
2746 local($comment_start,$comment_end);
2748 if ($ifile =~ /\.hc$/ ||
2751 $ifile =~ /_s$/ ) { # `Real' C intermediate
2752 $comment_start = "/\\*";
2753 $comment_end = "\\*/";
2754 } else { # Assume it is a file containing Haskell source
2755 $comment_start = "{-#";
2756 $comment_end = "#-}";
2759 open(FILE,$file) || return(1); # No big loss
2762 if ( /^${comment_start} OPTIONS (.*)${comment_end}/ ) {
2763 # add the options found at the back of the command line.
2764 local(@entries) = split(/\s+/,$1);
2765 print STDERR "Found OPTIONS " . join(' ',@entries) . " in $file\n" if $Verbose;
2766 push(@File_options, @entries);
2768 elsif ( /^$/ ) { # ignore empty lines
2771 elsif ( /^#line.+$/ ) { # ignore comment lines (unused..ToDo: rm )
2774 elsif ( /^{-# LINE.+$/ ) { # ignore line pragmas
2777 else { # stop looking, something non-empty / not
2778 # ${comment_start} OPTIONS .. ${comment_end} encountered.
2779 close(FILE);return(0);
2788 We split the initial argv up into three arrays:
2794 the reason for doing so is to be able to deal
2795 with {-# OPTIONS #-} pragma in source files properly.
2801 arg: while($_ = $args[0]) {
2803 # sigh, we have to deal with these -option arg specially here.
2804 /^-(tmpdir|odir|ohi|o|isuf|osuf|hisuf|odump|syslib)$/ &&
2805 do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; };
2806 /^--?./ && do { push(@Cmd_opts, $_); next arg; };
2808 if (/\.([^_]+_)?[oa]$/) {
2809 push(@Link_file, $_);
2811 push(@Input_file, $_);
2814 # input files must exist:
2816 print STDERR "$Pgm: input file doesn't exist: $_\n";
2824 When saving an intermediate file (.hc or .s) away, we
2825 have to prefix any OPTIONS found in the original source file.
2828 sub saveIntermediate {
2829 local ($final,$suffix,$tmp)= @_ ;
2832 local ($new_suffix);
2834 # $final -- root of where to park ${final}.${suffix}
2835 # $tmp -- temporary file where hsc put the intermediate file.
2837 # HWL: use -odir for .hc and .s files, too
2838 if ( $Specific_output_dir ne '' ) {
2839 $final = "${Specific_output_dir}/${final}";
2841 # HWL: use the same suffix as for $Osuffix in generating intermediate file,
2842 # replacing o with hc or s, respectively.
2843 if ( $Osuffix ne '' ) {
2844 ($new_suffix = $Osuffix) =~ s/o$/hc/ if $suffix eq "hc";
2845 ($new_suffix = $Osuffix) =~ s/o$/s/ if $suffix eq "s";
2846 $suffix = $new_suffix;
2847 print stderr "HWL says: suffix for intermediate file is $suffix; ${final}.${suffix} overall\n" if $Verbose;
2850 # Delete the old file
2851 $to_do = "$Rm ${final}.${suffix}"; &run_something($to_do, "Removing old .${suffix} file");
2853 if ( $#File_options >= 0 ) { # OPTIONS found in Haskell source unit
2854 # Add OPTION comment to the top of the generated .${suffix} file
2855 open(TEMP, "> ${final}.${suffix}") || &tidy_up_and_die(1,"Can't open ${final}.${suffix}\n");
2856 print TEMP "/* OPTIONS " . join(' ',@File_options) . " */\n";
2858 print STDERR "Prepending OPTIONS: " . join(' ',@File_options) . " to ${final}.${suffix}\n" if $Verbose;
2860 $to_do = "$Cat $tmp >> ${final}.${suffix}";
2861 &run_something($to_do, "Saving copy of .${suffix} file");
2868 Command-line processor
2874 # can't use getopt(s); what we want is too complicated
2876 arg: while($_ = $Args[0]) {
2879 #---------- help -------------------------------------------------------
2880 if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; }
2882 #-----------version ----------------------------------------------------
2883 /^--version$/ && do { print STDERR "${ProjectName}, version ${ProjectVersion}\n"; exit $Status; };
2885 #---------- verbosity and such -----------------------------------------
2886 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
2888 #---------- what phases are to be run ----------------------------------
2889 /^-(no-)?recomp/ && do { $Do_recomp_chkr = ($1 eq '') ? 1 : 0; next arg; };
2891 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
2892 # change the global default:
2893 # we won't run cat; we'll run the real thing
2895 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
2897 # stop after generating C
2899 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
2900 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
2902 # leave out actual C generation (debugging) [also turns off interface gen]
2905 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
2906 # _do_ generate an interface; usually used as: -noC -hi
2907 /^-hi-with-(.*)$/ && do { $HiOnStdout = 1; $HiWith .= " $1" ; $ProduceHi = '-hifile='; next arg; };
2908 # limit ourselves to outputting a particular section.
2910 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
2911 # don't generate an interface (even if generating C)
2913 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
2914 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
2915 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
2916 /^-keep-hi-diffs$/ && do { $Keep_HiDiffs = 1; next arg; };
2918 # show/disable diffs if the interface file changes
2920 /^-E$/ && do { push(@CcBoth_flags, '-E');
2921 $Only_preprocess_C = 1;
2922 $Do_as = 0; $Do_lnkr = 0; next arg; };
2923 # stop after preprocessing C
2924 /^-M$/ && do { $Only_generate_deps = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2925 # only generate dependency information.
2926 /^--mk-dll$/ && do { $Only_generate_dll = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2927 # Build a Win32 DLL (where supported).
2928 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
2929 # stop after generating assembler
2931 /^-c$/ && do { $Do_lnkr = 0; next arg; };
2932 # stop after generating .o files
2934 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
2935 # don't do consistency-checking after a link
2936 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
2938 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', '');
2939 $Tmp_prefix = "$Tmp_prefix/ghc$$";
2940 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
2942 # use an alternate directory for temp files
2944 #---------- redirect output --------------------------------------------
2946 # -o <file>; applies to the last phase, whatever it is
2947 # "-o -" sends it to stdout
2948 # if <file> has a directory component, that dir must already exist
2950 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', '');
2952 # Hack, of the worst sort: don't do validation of
2953 # odir argument if you're using -M (dependency generation).
2955 if ( ! $Only_generate_deps && ! -d $Specific_output_dir) {
2956 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
2961 /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', '');
2962 if ($Specific_output_file ne '-'
2963 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
2964 local($dir_part) = $1;
2965 if (! -d $dir_part) {
2966 print STDERR "$Pgm: no such directory: $dir_part\n";
2972 # NB: -isuf not documented yet (because it doesn't work yet)
2973 /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', '');
2974 if ($Isuffix =~ /\./ ) {
2975 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
2980 /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', '');
2981 if ($Osuffix =~ /\./ ) {
2982 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
2987 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
2988 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', '');
2989 if ($Specific_hi_file ne '-'
2990 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
2991 local($dir_part) = $1;
2992 if (! -d $dir_part) {
2993 print STDERR "$Pgm: no such directory: $dir_part\n";
2997 $ProduceHi='-hifile=';
3000 # The suffix to use when looking for interface files
3001 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', '');
3002 if ($HiSuffix =~ /\./ ) {
3003 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
3007 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', '');
3008 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
3009 local($dir_part) = $1;
3010 if (! -d $dir_part) {
3011 print STDERR "$Pgm: no such directory: $dir_part\n";
3017 #-------------- scc & Profiling Stuff ----------------------------------
3019 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
3021 /^-auto-dicts$/ && do {
3022 $PROFdicts = '-fauto-sccs-on-dicts';
3024 /^-auto-all$/ && do {
3025 $PROFauto = '-fauto-sccs-on-all-toplevs';
3028 $PROFauto = '-fauto-sccs-on-exported-toplevs';
3031 /^-caf-all/ && do { # generate individual CAF SCC annotations
3032 $PROFcaf = '-fauto-sccs-on-individual-cafs';
3035 /^-ignore-scc$/ && do {
3036 # forces ignore of scc annotations even if profiling
3037 $PROFignore_scc = '-W';
3040 /^-unprof-scc-auto/ && do {
3041 # generate auto SCCs on top level bindings when not profiling.
3042 # Used to measure optimisation effects of presence of sccs.
3043 $UNPROFscc_auto = ( /-all/ )
3044 ? '-fauto-sccs-on-all-toplevs'
3045 : '-fauto-sccs-on-exported-toplevs';
3048 #--------- ticky/parallel ----------------------------------------------
3049 # we sort out the details a bit later on
3051 /^-gransim$/ && do { $GRANing = 'g'; &add_syslib('concurrent'); next arg; }; # GranSim
3052 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
3053 /^-parallel$/ && do { $PARing = 'p'; &add_syslib('concurrent'); next arg; }; # parallel Haskell
3054 /^-smp$/ && do { $SMPing = 's'; &add_syslib('concurrent'); next arg; }; # parallel Haskell
3056 #-------------- "user ways" --------------------------------------------
3058 (/^-user-setup-([a-oA-Z])$/ ) &&
3060 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
3062 local($stuff) = $UserSetupOpts{$BuildTag};
3063 local(@opts) = split(/\s+/, $stuff);
3065 # feed relevant ops into the arg-processing loop (if any)
3066 unshift(@Args, @opts) if $#opts >= 0;
3070 #---------- set search paths for libraries and things ------------------
3072 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
3073 # prepends the items to the list); -I is for including C .h files.
3075 /^-i$/ && do { @Import_dir = (); # import path cleared!
3076 @SysImport_dir = ();
3077 print STDERR "WARNING: import paths cleared by `-i'\n";
3080 /^-i(.*)/ && do { local(@new_items);
3084 if ( $arg =~ /;/ ) {
3086 @new_items = split( /;/, &grab_arg_arg(*Args,'-i', $arg));
3088 @new_items = split( /:/, &grab_arg_arg(*Args,'-i', $arg));
3090 unshift(@Import_dir, @new_items);
3093 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; };
3094 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; };
3095 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; };
3097 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1);
3098 &add_syslib($syslib);
3101 #=======================================================================
3102 # various flags that we can harmlessly send to one program or another
3103 # (we will later "reclaim" some of the compiler ones now sent to gcc)
3104 #=======================================================================
3106 #---------- this driver itself (ghc) -----------------------------------
3107 # these change what executable is run for each phase:
3108 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
3109 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
3110 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
3111 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
3112 /^-pgma(.*)$/ && do { $As = $1; next arg; };
3113 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
3114 /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; };
3116 #---------- the get-anything-through opts (all pgms) -------------------
3117 # these allow arbitrary option-strings to go to any phase:
3118 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
3119 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
3120 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
3121 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
3122 /^-optcpp(.*)$/ && do { push(@Cpp_define, $1); $Only_preprocess_hc = ($1 eq "-E"); next arg; };
3123 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
3124 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
3125 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
3126 /^-optdll(.*)$/ && do { push(@Dll_flags, $1); next arg; };
3127 /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; };
3129 #---------- Haskell C pre-processor (hscpp) ----------------------------
3130 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; };
3131 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; };
3133 #---------- post-Haskell "assembler"------------------------------------
3134 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
3135 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
3137 #---------- Haskell compiler (hsc) -------------------------------------
3139 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
3140 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
3142 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
3143 /^-fignore-asserts$/ && do { push(@HsC_flags, $_); next arg; };
3145 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
3148 # have the compiler proper generate concurrent code,
3149 # really only used when you want to configure your own
3150 # special user compilation way.
3152 # (ditto for -fgransim, fscc-profiling, -fparallel and -fticky-ticky)
3154 /^-fscc-profiling$/ && do { push(@HsC_flags,$_); next arg; };
3155 /^-fticky-ticky$/ && do { push(@HsC_flags,$_); next arg; };
3156 /^-fgransim$/ && do { push(@HsC_flags,$_); next arg; };
3157 /^-fparallel$/ && do { push(@HsC_flags,$_); next arg; };
3158 /^-fsmp$/ && do { push(@HsC_flags,$_); next arg; };
3160 /^-split-objs$/ && do {
3161 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|rs6000|sparc)-/ ) {
3163 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
3168 push(@HsC_flags, "-fglobalise-toplev-names");
3169 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
3171 require('ghc-split.prl')
3172 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
3176 /^-unreg$/ && do { $UNREGing = 'u'; next arg; };
3177 /^-funregisterised$/ && do { push(@HsC_flags, $_); next arg; };
3178 /^-fno-asm-mangling$/ && do { $DoAsmMangling = 0; next arg; };
3180 /^-fallow-overlapping-instances$/ && do { push(@HsC_flags, $_); next arg; };
3181 /^-fallow-undecidable-instances$/ && do { push(@HsC_flags, $_); next arg; };
3182 /^-fhistory-size.*$/ && do { push(@HsC_flags, $_); next arg; };
3183 /^-fdicts-strict$/ && do { push(@HsC_flags, $_); next arg; };
3185 && do { push(@HsC_flags, $_);
3187 # -fglasgow-exts implies -syslib lang
3188 &add_syslib('lang');
3193 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
3194 /^-fno-speciali[sz]e$/
3195 && do { $Oopt_DoSpecialise = ''; next arg; };
3198 && do { $Oopt_UsageSPInf = '-fusagesp';
3199 push (@HsC_flags, '-fusagesp-on'); next arg; };
3201 /^-fcompiling-prelude$/ && do { $CompilingPrelude=1; push(@HsC_flags, $_); next arg; };
3203 # Now the foldr/build options, which are *on* by default (for -O).
3206 && do { $Oopt_FoldrBuild = 1;
3210 /^-fno-foldr-build$/
3211 && do { $Oopt_FoldrBuild = 0;
3214 # --------------- Renamer -------------
3217 /^-fno-prune-tydecls$/ && do { push(@HsC_flags, $_); next arg; };
3218 /^-fno-prune-instdecls$/ && do { push(@HsC_flags, $_); next arg; };
3222 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
3223 /^-fvia-[cC]$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
3228 && do { push(@HsC_flags, $_); next arg };
3230 /^-fliberate-case-.*$/
3231 && do { push(@HsC_flags, $_); next arg };
3233 /^-funfold-casms-in-hi-file$/
3234 && do { push(@HsC_flags, $_); next arg };
3236 /^(-fmax-simplifier-iterations)(.*)$/
3237 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2);
3240 /^-fno-pedantic-bottoms$/
3241 && do { $Oopt_PedanticBottoms = ''; next arg; };
3243 /^-fno-pre-inlining$/
3244 && do { push(@HsC_flags, $_); next arg };
3246 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
3247 && do { push(@HsC_flags, $_); next arg; };
3249 /^-funbox-strict-fields$/
3250 && do { push(@HsC_flags, $_); next arg; };
3252 # --------------- Warnings etc. ------
3254 /^-fwarn-(.*)$/ && do { push(@HsC_flags, $_); next arg; };
3256 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
3257 &squashHscFlag("-f$1");
3260 /^-W$/ && do { push(@HsC_flags, @MinusWOpts); next arg; };
3261 /^-Wall$/ && do { push(@HsC_flags, @MinusWallOpts); next arg; };
3262 /^(-Wnot|w)$/ && do { foreach (@Hsc_flags) {
3263 /^-fwarn-(.*)$/ && do { $_=''; };
3265 push(@HsC_antiflags, @StandardWarnings);
3268 # --------------- fun stuff ----------------
3270 /^-freport-compile$/ && do { push(@HsC_flags, $_); next arg; };
3272 # --------------- platform specific flags (for gcc mostly) ----------------
3274 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes,
3275 # for 2.6.x..?, does not apply for 2.7.2
3277 unshift(@CcBoth_flags, ( $_ ));
3280 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
3281 && do { # for GCC for SPARCs
3282 unshift(@CcBoth_flags, ( $_ ));
3285 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
3286 $StolenX86Regs = $1;
3289 #*************** ... and lots of debugging ones (form: -d* )
3291 # -d(no-)core-lint is done this way so it is turn-off-able.
3292 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
3293 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
3294 # Ditto for USP lint
3295 /^-dusagesp-lint/ && do { $USPLint = '-dusagesp-lint'; next arg; };
3296 /^-dno-usagesp-lint/ && do { $USPLint = ''; next arg; };
3297 # Ditto for STG lint
3298 /^-dstg-lint/ && do { $StgLint = '-dstg-lint'; next arg; };
3299 /^-dno-stg-lint/ && do { $StgLint = ''; next arg; };
3301 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
3302 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
3303 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
3304 /^-dshow-rn-stats/ && do { push(@HsC_flags, $_); next arg; };
3305 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
3306 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
3307 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
3308 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
3310 #*************** ... and now all these -R* ones for its runtime system...
3312 /^-Rscale-sizes?(.*)/ && do {
3313 $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1);
3316 /^(-H|-Rmax-heapsize)(.*)/ && do {
3317 local($heap_size) = &grab_arg_arg(*Args,$1, $2);
3318 if ($heap_size =~ /(\d+)[Kk]$/) {
3319 $heap_size = $1 * 1000;
3320 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
3321 $heap_size = $1 * 1000 * 1000;
3322 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
3323 $heap_size = $1 * 1000 * 1000 * 1000;
3325 if ($heap_size <= 0) {
3326 print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n";
3327 $Specific_heap_size = 0;
3329 # if several heap sizes given, take the largest...
3330 } elsif ($heap_size >= $Specific_heap_size) {
3331 $Specific_heap_size = $heap_size;
3333 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n" if $Verbose;
3337 /^(-K|Rmax-(stk|stack)size)(.*)/ && do {
3339 local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3);
3340 if ($stk_size =~ /(\d+)[Kk]$/) {
3341 $stk_size = $1 * 1000;
3342 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
3343 $stk_size = $1 * 1000 * 1000;
3344 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
3345 $stk_size = $1 * 1000 * 1000 * 1000;
3347 if ($stk_size <= 0) {
3348 print STDERR "$Pgm: resetting stack-size to zero!!! $stk_size\n";
3349 $Specific_stk_size = 0;
3351 # if several stack sizes given, take the largest...
3352 } elsif ($stk_size >= $Specific_stk_size) {
3353 $Specific_stk_size = $stk_size;
3355 print STDERR "$Pgm: ignoring stack-size-setting option ($flag $stk_size)...not the largest seen\n" if $Verbose;
3359 /^-Rgc-stats$/ && do { $CollectingGCstats++;
3360 # the two RTSs do this diff ways; we will try to compensate
3363 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
3365 #---------- C high-level assembler (gcc) -------------------------------
3366 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
3368 # -dgcc-lint is a useful way of making GCC very fussy.
3369 # From alan@spri.levels.unisa.edu.au (Alan Modra).
3370 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
3371 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
3372 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
3374 # inject "#include <wurble>" into the compiler's C output!
3376 /^-#include(.*)/ && do {
3377 local($to_include) = &grab_arg_arg(*Args,'-#include', $1);
3378 push(@CcInjects, "#include $to_include\n");
3381 #---------- Linker (gcc, really) ---------------------------------------
3383 /^-static$/ && do { $Static=1; push(@Ld_flags, $_); next arg; };
3384 /^-no-hs-main$/ && do { $NoHaskellMain=1; next arg; };
3386 #---------- mixed cc and linker magic ----------------------------------
3387 # this optimisation stuff is finally sorted out later on...
3389 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
3391 /^-O[1-2]?$/ && do {
3392 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
3393 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
3395 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
3398 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
3400 /^-Ofile(.*)/ && do {
3402 local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1);
3403 @HsC_minusO3_flags = ();
3405 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
3408 s/\#.*//; # death to comments
3409 s/[ \t]+//g; # death to whitespace
3410 next if /^$/; # ditto, blank lines
3411 s/([()*{}])/\\$1/g; # protect shell metacharacters
3413 push(@CcBoth_flags, $1);
3415 push(@HsC_minusO3_flags, $_);
3421 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
3422 # in the consistency info
3426 #---------- linking .a file --------------------------------------------
3428 /^-Main(.*)/ && do {
3429 # specifies main or mainPrimIO to be linked
3433 #---------- catch unrecognized flags -----------------------------------
3436 print STDERR "$Pgm: unrecognised option: $_\n";
3442 } # end of processArgs