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}__init_Prelude"
1107 if (!$NoHaskellMain) {
1108 unshift (@Ld_flags,'-u', "${uscore}PrelMain_mainIO_closure");
1110 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1111 # sometimes we have lots of toc entries...
1112 # unshift(@Ld_flags, ('-Xlinker -bbigtoc -Xlinker -bnoquiet'));
1113 unshift(@Ld_flags, ('-Xlinker -bbigtoc'));
1115 if ($TargetPlatform =~ /^hppa/) {
1116 unshift(@Ld_flags, ('-Xlinker +vnocompatwarnings'));
1119 } # end of setupLinkOpts
1123 %************************************************************************
1125 \subsection{Set up include paths and system-library enslurpment}
1127 %************************************************************************
1129 Now that we know what garbage-collector, etc., are required, we can
1130 finalise our list of libraries to slurp through, and generally Get
1135 # default includes must be added AFTER option processing
1136 if ( ! $INSTALLING ) {
1137 push (@Include_dir, "$TopPwd/${CURRENT_DIR}/${GHC_INCLUDE_DIR}");
1139 push (@Include_dir, "$InstLibDirGhc/includes");
1140 push (@Include_dir, "$InstLibDirGhc/includes");
1142 } # end of setupIncPaths
1147 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1150 foreach $f (@SysLibrary) {
1151 next if $f =~ /_cbits/;
1152 $f .= $BuildTag if $f =~ /^-lHS/;
1155 # Push library HSrts, plus boring clib bit
1156 push(@SysLibrary, "-lHSrts${BuildTag}");
1159 # RTS compiled with cygwin32, uses the WinMM API
1160 # to implement the itimers, since cygwin.dll does not
1161 # support it. Only reqd. for `ways' that use itimers.
1163 push(@SysLibrary, '-lwinmm') if ($TargetPlatform =~ /-(mingw32|cygwin32)$/);
1164 # Note: currently only tested with mingw, may cause conflicts when linking
1166 push(@SysLibrary, '-lwsock32') if ($TargetPlatform =~ /-(mingw32|cygwin32)$/);
1168 # Push the pvm libraries
1169 if ($BuildTag eq '_mp') {
1170 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1171 push(@SysLibrary, "-L$pvmlib", '-lgpvm3', '-lpvm3');
1172 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1173 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1174 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1175 push(@SysLibrary, '-lsocket', '-lnsl');
1179 # Push the GNU multi-precision arith lib; and the math library
1181 # If this machine has GMP already installed, then we'll get the installed
1182 # lib here, because presumably the one in the tree won't have been built.
1184 if ($LibGmp eq 'not-installed') {
1185 push(@SysLibrary, "-lgmp");
1187 push(@SysLibrary, "-l$LibGmp");
1190 push(@SysLibrary, '-lm') if !( $TargetPlatform =~ /^.*(cygwin32|mingw32)$/ );
1193 %************************************************************************
1195 \subsection{Check that this system was built to do what we are asking}
1197 %************************************************************************
1199 Before continuing we check that the appropriate build is available.
1202 #die "$Pgm: no BuildAvail?? $BuildTag\n" if $BuildDescr{$BuildTag} eq '' ; # sanity
1204 if ( $BuildDescr{$BuildTag} eq '' ) {
1205 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1206 "' \"build\" is not available with your GHC setup.\n";
1207 print STDERR "(It was not configured for it at your site.)\n";
1208 print STDERR $ShortUsage;
1212 } # end of setupSyslibs
1216 %************************************************************************
1218 \subsection{Final miscellaneous setup bits before we start going}
1220 %************************************************************************
1222 Record largest specific heapsize, if any.
1224 sub setupHeapStackSize {
1225 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1226 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1227 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1228 push(@HsC_rts_flags, "-K$Specific_stk_size");
1232 If no input or link files seen, then we let 'em feed in stdin; this is
1233 mainly for debugging.
1237 if ($#Input_file < 0 && $#Link_file < 0) {
1238 @Input_file = ( '-' );
1240 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1241 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n" if -t;
1242 while (<STDIN>) { print INF $_; }
1243 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1248 Tell the world who we are, if they asked.
1250 print STDERR "${ProjectName}, version ${ProjectVersion}\n" if $Verbose;
1253 %************************************************************************
1255 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1257 %************************************************************************
1259 Process the input files; don't continue with linking if there are
1260 problems (global variable @$Status@ non-zero).
1262 foreach $ifile (@Input_file) {
1263 &ProcessInputFile($ifile);
1266 # don't link if there were errors...
1267 if ( $Status > 0 ) {
1268 print STDERR $ShortUsage;
1273 # Link if appropriate.
1274 &runLinker() if $Do_lnkr;
1276 # that... that's all, folks!
1278 exit $Status; # will still be 0 if all went well
1281 %************************************************************************
1283 \section[Driver-do-one-file]{How to process a single input file}
1285 %************************************************************************
1288 sub ProcessInputFile {
1289 local($ifile) = @_; # input file name
1290 local($ifile_root); # root of or basename of input file
1291 local($ofile_target); # ultimate output file we hope to produce
1292 # from input file (need to know for recomp
1293 # checking purposes)
1294 local($hifile_target);# ditto (but .hi file)
1295 local($ofile_c_stub_target);
1296 local($ofile_h_stub_target);
1299 Handle the weirdity of input from stdin.
1301 if ($ifile ne '-') {
1302 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1303 $ofile_target = # may be reset later...
1304 ($Specific_output_file ne '' && ! $Do_lnkr)
1305 ? $Specific_output_file
1306 : &odir_ify($ifile_root, 'o');
1307 $hifile_target= ($Specific_hi_file ne '')
1309 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1310 # NB: may change if $ifile_root isn't module name (??)
1311 ($ofile_c_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.c/;
1312 ($ofile_h_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.h/;
1314 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1315 $ifile_root = '_stdin';
1316 $ofile_target = '_stdout'; # gratuitous?
1317 $hifile_target= '_stdout'; # ditto?
1321 We need to decide what phases of the compilation system we will run
1322 over this file. The defaults are the ones established when processing
1323 flags. (That established what the last phase run for all files is.)
1325 We do the pre-recompilation-checker phases here; the rest later.
1329 Look at the suffix and decide what initial phases of compilation may
1330 be dropped off for this file. Also the rather boring business of
1331 which files are coming-in/going-out.
1333 Again, we'll do the post-recompilation-checker parts of this later.
1335 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1336 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1339 # names of the files to stuff between phases
1340 # defaults are temporaries
1341 local($in_lit2pgm) = $ifile;
1342 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1343 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1344 local($hsc_hi) = "$Tmp_prefix.hi";
1345 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1346 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1347 local($as_out) = $ofile_target;
1349 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
1351 # OK, let's strip off some literate junk..
1353 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
1355 $lit2pgm_hscpp = $ifile;
1361 # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas
1362 &check_for_source_options($lit2pgm_hscpp,$ifile);
1364 # Options found in the source file take a back seat, i.e., we scan
1365 # them first. Only process the command line again if source file
1366 # contained anything of interest *or* there's more than one
1367 # input file (we have to reset the options).
1369 if ( $#Input_file >= 0 || $#File_options >= 0) {
1370 #@File_options = (@File_options, @Cmd_opts);
1372 # Now process the command line
1373 &initDriverGlobals();
1374 &processArgs((@File_options,@Cmd_opts));
1375 print STDERR "\nEffective command line: " .
1376 join(' ',(@File_options,@Cmd_opts)) . "\n" if $Verbose;
1379 # Having got the effective command line scanned, set up
1380 # the various options in prep for some real work.
1382 # check the sanity of the BuildTag we're about to use,
1383 # and if needs be, add some more flags and setup to
1384 # the different phases.
1387 &setupOptimiseFlags();
1390 &setupWarningFlags();
1391 &setupHeapStackSize();
1394 # These two variables need to be set after the
1395 # command-line has been processed and the build options
1396 # have be seen set up. This is because command-line options
1397 # can control whether to compile vias C or not.
1399 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1401 : ( ($HscOut eq '-C=') ? 1 : 0 );
1402 local($do_as) = $Do_as;
1403 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1404 local($hsc_out_c_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.c" : "";
1405 local($hsc_out_h_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.h" : "";
1407 if ($Only_preprocess_hc) { # stop after having run $Cc -E
1410 if ($Only_preprocess_C) { # stop after having run $hscpp
1411 $do_hsc=0; $do_cc = 0; $do_as=0;
1412 } elsif ($ifile =~ /.lhs$/ || $ifile =~ /.hs$/ ) {
1414 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
1415 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1417 $hsc_out_c_stub = '';
1418 $hsc_out_h_stub = '';
1419 } elsif ($ifile =~ /\.c$/) {
1420 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1421 $hsc_out = $ifile; $is_hc_file = 0;
1422 $hsc_out_c_stub = '';
1423 $hsc_out_h_stub = '';
1424 } elsif ($ifile =~ /\.[sS]$/) {
1425 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
1427 } else { # don't know what it is, but nothing to do herein...
1428 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
1431 # hack to avoid running hscpp
1432 $HsCpp = $Cat if ! $Cpp_flag_set;
1434 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) if $do_hscpp;
1438 We now think about whether to run hsc/cc or not (when hsc produces .s
1439 stuff, it effectively takes the place of both phases).
1440 To get the output file name right: for each phase that we are {\em
1441 not} going to run, set its input (i.e., the output of its preceding
1442 phase) to @"$ifile_root.<suffix>"@.
1445 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
1448 # Warning issued if -keep-hc-file-too is used without
1449 # -fvia-C (or the equivalent)
1451 if ( $HscOut ne '-C=' && $Keep_hc_file_too ) {
1452 print STDERR "$Pgm: warning: Native code generator to be used, -keep-hc-file-too will be ignored\n";
1455 if (! $do_cc && ! $do_as) { # stopping after hsc
1456 $hsc_out = ($Specific_output_file ne '')
1457 ? $Specific_output_file
1458 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
1460 $ofile_target = $hsc_out; # reset
1463 if (! $do_as) { # stopping after gcc (or hsc)
1464 $cc_as = ($Specific_output_file ne '')
1465 ? $Specific_output_file
1466 : &odir_ify($ifile_root, ( $Only_preprocess_hc ) ? 'i' : 's');
1468 $ofile_target = $cc_as; # reset
1474 Now the Haskell compiler, C compiler, and assembler
1478 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
1479 $ofile_target, $hifile_target,
1480 $going_interactive);
1483 if (-f $hsc_out_h_stub) {
1484 &run_something("cp $hsc_out_h_stub $ofile_h_stub_target", 'Copy foreign export header file');
1487 if (-f $hsc_out_c_stub) {
1488 &run_something("rm -f $ofile_c_stub_target && echo '#include \"${ofile_h_stub_target}\"' > $ofile_c_stub_target && cat $hsc_out_c_stub >> $ofile_c_stub_target", 'Copy foreign export C stubs');
1489 local ($hsc_out_s_stub);
1490 local ($hsc_out_o_stub);
1491 ($ofile_s_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$/\.s/;
1492 ($ofile_o_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$//;
1494 $ofile_o_stub_target = &osuf_ify($ofile_o_stub_target, "o");
1496 &runGcc (0, $ofile_c_stub_target, $ofile_s_stub_target);
1497 &runAs ($ofile_o_stub_target, $ofile_s_stub_target);
1500 # Bring the C stub protos into scope when compiling the .hc file.
1502 push (@CcInjects, "#include \"${hsc_out_h_stub}\"\n");
1503 # Hack - ensure that the stub .h file is included in the OPTIONS section
1504 # if the .hc file is saved.
1505 push (@File_options, "-#include \"${ofile_h_stub_target}\"\n");
1510 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
1511 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root) if ! $Only_preprocess_hc;
1514 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
1516 # save a copy of the .s file..
1517 &saveIntermediate($ifile_root , "s" , $cc_as) if ($do_as && $Keep_s_file_too);
1518 &runAs($as_out, $ifile_root) if $do_as;
1521 Finally, decide what to queue up for linker input.
1523 # tentatively assume we will eventually produce linker input:
1524 push(@Link_file, &odir_ify($ifile_root, 'o'));
1526 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
1528 if ( $ifile !~ /\.(lhs|hs|hc|c|s|a|S)$/ && $ifile !~ /_hc$/ ) {
1529 # There's sometimes confusion regarding .hi files; users
1530 # supplying them on the command line.
1531 if ( $ifile =~ /\.hi$/ ) {
1532 print STDERR "$Pgm: warning: found `$ifile' on command line; interface files should not be supplied here - ignoring it.\n";
1534 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n";
1536 # oops; we tentatively pushed the wrong thing; fix & do the right thing
1537 pop(@Link_file); push(@Link_file, $ifile);
1541 } # end of ProcessInputFile
1544 %************************************************************************
1546 \section[Driver-run-phases]{Routines to run the various phases}
1548 %************************************************************************
1552 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
1556 # Only add #line pragma if we're going to need it.
1557 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && " if ($Cpp_flag_set);
1558 $to_do .= "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
1560 push(@Files_to_tidy, $lit2pgm_hscpp );
1562 &run_something($to_do, 'literate pre-processor');
1568 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
1572 # Strictly speaking, echoing of the following line pragma is only required
1573 # on non-delit'ed input, as we've already added it during de-lit. However,
1574 # hscpp will then add a {-# LINE 1 "$lit2pgm_hsc" -} to the top of the file,
1575 # which is not very informative (but harmless). Hence, we uniformly have
1576 # {-# LINE 1 "$in_lit2pgm" #-} as the first line to all cpp'ed hsc input.
1578 $to_do = "echo '{-# LINE 1 \"$in_lit2pgm\" -}' > $hscpp_hsc && ";
1580 if ($HsCpp eq $Cat) {
1581 $to_do .= "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
1582 push(@Files_to_tidy, $hscpp_hsc );
1583 &run_something($to_do, 'Ineffective C pre-processor');
1585 local($includes) = '-I' . join(' -I',@Include_dir);
1586 $to_do .= "$HsCpp $Verbose @HsCpp_flags @HsSourceCppOpts $includes $lit2pgm_hscpp >> $hscpp_hsc";
1587 push(@Files_to_tidy, $hscpp_hsc );
1588 &run_something($to_do, 'Haskellised C pre-processor');
1591 if ( $Only_preprocess_C ) {
1592 $to_do = "$Cat $hscpp_hsc";
1593 &run_something($to_do, '');
1601 sub runHscAndProcessInterfaces {
1602 local($ifile, $hscpp_hsc, $ifile_root,
1603 $ofile_target, $hifile_target,
1604 $going_interactive) = @_;
1606 # $ifile is the original input file
1607 # $hscpp_hsc post-unlit, post-cpp, etc., input file
1608 # $ifile_root input filename minus suffix
1609 # $ofile_target the output file that we ultimately hope to produce
1610 # $hifile_target the .hi file ... (ditto)
1612 local($source_unchanged) = 1;
1614 # Check if the source file is up to date relative to the target; in
1615 # that case we say "source is unchanged" and let the compiler bail out
1616 # early if the import usage information allows it.
1618 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
1619 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
1621 # The informational messages below are now conditional on -v being set -- SOF
1622 if ( $ofile_target ne "_stdin.s" && ! -f $ofile_target ) {
1623 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n" if $Verbose;
1624 $source_unchanged = 0;
1627 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
1628 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
1630 if ( $hifile_target ne "_stdout" && ! -f $hifile_target ) {
1631 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n" if $Verbose;
1632 $source_unchanged = 0;
1635 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
1636 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
1638 if ( $ofile_target ne "_stdin.s" && $i_mtime > $o_mtime) {
1639 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n" if $Verbose;
1640 $source_unchanged = 0;
1643 # Tell the compiler which version we're using
1644 push(@HsC_flags, "-fhi-version=${ProjectVersionInt}");
1646 # So if source_unchanged is still "1", we pass on the good news to the compiler
1647 # The -recomp flag can disable this, forcing recompilation
1648 if ($Do_recomp_chkr && $source_unchanged) {
1649 push(@HsC_flags, '-fsource-unchanged');
1652 # Indicate whether we're static or not.
1653 # This will only ever
1654 push(@HsC_flags, '-static') if $Static;
1658 &runHsc($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive);
1660 # See if it bailed out early, saying nothing needed doing.
1661 # We work this out by seeing if it created an output .hi file
1663 if ( ! -f $hsc_hi && $ProduceHi !~ /-nohifile=/ ) {
1664 # Doesn't exist, so we bailed out early.
1665 # Tell the C compiler and assembler not to run
1666 $do_cc = 0; $do_as = 0;
1668 # Update dependency info, touch both object file and
1669 # interface file, so that the following invariant is
1672 # a dependent module's interface file should after recompilation
1673 # checking be newer than the interface files of its imports.
1675 # That is, if module A's interface file changes, then module B
1676 # (which import from A) needs to be checked.
1677 # If A's change does not affect B, which causes the compiler to bail
1678 # out early, we still need to touch the interface file of B. The reason
1679 # for this is that B may export A's interface.
1681 &run_something("touch $ofile_target",
1682 "Touch $ofile_target, to propagate dependencies") if $HscOut ne '-N=';
1683 &run_something("touch $hifile_target",
1684 "Touch $hifile_target, to propagate dependencies") if $ProduceHi =~ /-nohifile=/ ;
1688 # Didn't bail out early (new .hi file) so we thunder on
1690 # If non-interactive, heave in the consistency info at the end
1691 # NB: pretty hackish (depends on how $output is set)
1692 if ( ! $going_interactive ) {
1693 if ( $HscOut eq '-C=' ) {
1694 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
1696 } elsif ( $HscOut eq '-S=' ) {
1697 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
1698 $consist =~ s/,/./g;
1699 $consist =~ s/\//./g;
1700 $consist =~ s/-/_/g;
1701 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
1702 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
1704 &run_something($to_do, 'Pin on Haskell consistency info');
1708 # Interface-handling is important enough to live off by itself
1709 if ( $ProduceHi !~ /-nohifile=/ ) { # If we've produced one, process it.
1710 require('ghc-iface.prl') || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
1711 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
1713 # if we're going to split up object files,
1714 # we inject split markers into the .hc file now
1715 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
1716 &inject_split_markers ( $hsc_out );
1719 # save a copy of the .hc file, even if we are carrying on...
1720 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
1721 &saveIntermediate($ifile_root , "hc" , $hsc_out);
1731 local($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive) = @_;
1733 &makeHiMap() unless $HiMapDone;
1734 push(@HsC_flags, "\"-himap=$HiIncludeString\"");
1735 push(@HsC_flags, "\"-himap-sep=${SplitMarker}\"");
1737 # here, we may produce .hc/.s and/or .hi files
1738 local($output) = '';
1739 #@Files_to_tidy = ();
1741 if ( $going_interactive ) {
1742 # don't need .hi unless we're going to show it on stdout:
1743 $ProduceHi = '-nohifile=' if ! ($HiOnStdout || $Specific_hi_file ne '' );
1744 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
1747 # set up for producing output/.hi; note that flag twiddling
1748 # may mean that nothing will actually be produced:
1749 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out -F=$hsc_out_c_stub -FH=$hsc_out_h_stub";
1750 push(@Files_to_tidy, $hsc_hi, $hsc_out, $hsc_out_c_stub, $hsc_out_h_stub );
1752 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
1753 if ( $CollectingGCstats ) {
1754 push(@HsC_rts_flags, "-S$ifile_root.stat");
1755 push(@Files_to_tidy, "$ifile_root.stat");
1758 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
1759 # emit nofibbish time/bytes-alloc stats to stderr;
1760 # see later .stat file post-processing
1761 print STDERR "warning: both -Rgc-stats and -Rghc-timing used, -Rghc-timing wins." if $CollectingGCstats;
1762 push(@HsC_rts_flags, "-S$Tmp_prefix.stat");
1763 push(@Files_to_tidy, "$Tmp_prefix.stat");
1767 if ($Specific_dump_file ne '') {
1768 $dump = "2>> $Specific_dump_file";
1769 $Using_dump_file = 1;
1773 # Win32 only: If the command processor used by system()
1774 # exec()s the application as an ordinary Win32 executable,
1775 # we're in trouble here, since the command line is likely
1776 # to be > 255 chars long. To work around this situation,
1777 # $HsC also understands `at-files', i.e., `@file' on the
1778 # command line will cause $HsC to add the contents of `file'
1779 # to the command line.
1781 # [ Note: support for `at-files' is not compiled in by default ]
1782 $cmd_line_opts_via_at_file=0;
1783 if ($cmd_line_opts_via_at_file) {
1785 local($to_do_opts) = "$Tmp_prefix.opts";
1786 open(OPTS, "> $Tmp_prefix.opts") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.opts\n");
1787 print OPTS "$dump @HsC_flags $CoreLint $USPLint $StgLint $Verbose";
1789 $to_do = "$HsC $hscpp_hsc \@$Tmp_prefix.opts $output +RTS @HsC_rts_flags";
1793 $to_do = "$HsC $hscpp_hsc $dump @HsC_flags $CoreLint $USPLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
1795 &run_something($to_do, 'Haskell compiler');
1797 # finish business w/ nofibbish time/bytes-alloc stats
1798 &process_ghc_timings() if $CollectGhcTimings;
1802 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
1803 of (module-name, pathname) pairs, one per line, separated by a space.
1806 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1810 # collect in %HiMap; write later; also used elsewhere in driver
1812 local($mod, $path, $d, $e);
1814 # reset the global variables:
1816 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1818 foreach $d ( @Import_dir ) {
1819 if ($HiIncludeString) {
1820 $HiIncludeString = "$HiIncludeString${SplitMarker}${d}%.${HiSuffix}";
1822 $HiIncludeString = "$d%.${HiSuffix}";
1827 foreach $d ( @SysImport_dir ) {
1828 if ($HiIncludeString) {
1829 $HiIncludeString = "$HiIncludeString${SplitMarker}${d}%.${HiSuffix_prelude}";
1831 $HiIncludeString = "${d}%.${HiSuffix_prelude}";
1840 Invoke the 'linker' - either the standard linker or the one used to build
1846 local($libdirs) = '';
1848 # append last minute flags linker and consistency flags
1853 # glue them together:
1854 push(@UserLibrary_dir, @SysLibrary_dir);
1856 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1858 # for a linker, use an explicitly given one, or the going C compiler ...
1859 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1861 if ( ($Specific_output_file eq '') &&
1862 ($TargetPlatform eq 'i386-unknown-cygwin32') ) {
1863 $Specific_output_file = 'main.exe';
1864 print STDERR "Output file not specified, defaulting to \"main.exe\"\n";
1867 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1868 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1870 &prepareWin32DllLink(1);
1872 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $libdirs @UserLibrary @SysLibrary";
1873 &run_something($to_do, 'Linker');
1875 # finally, check the consistency info in the binary
1876 local($executable) = $Files_to_tidy[0];
1877 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1880 # dynamically load consistency-chking code; then do it.
1881 require('ghc-consist.prl')
1882 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1884 &chk_consistency_info ( $executable );
1887 # if PVM parallel stuff, we do truly weird things.
1888 # Essentially: (1) move the executable over to where PVM expects
1889 # to find it. (2) create a script in place of the executable
1890 # which will cause the program to be run, via SysMan.
1891 if ( $PARing eq 'p' ) {
1892 local($pvm_executable) = $executable;
1893 local($pvm_executable_base);
1895 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1896 local($pwd) = `pwd`;
1898 $pwd =~ s/^\/tmp_mnt//;
1899 $pvm_executable = "$pwd/$pvm_executable";
1902 $pvm_executable =~ s|/|=|g; # make /s into =s
1903 $pvm_executable_base = $pvm_executable;
1905 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1906 . "/$pvm_executable";
1908 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1910 # OK, now create the magic script for "$executable"
1911 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1912 print EXEC <<EOSCRIPT1;
1913 eval 'exec perl -S \$0 \${1+"\$@"}'
1914 if \$running_under_some_shell;
1915 # =!=!=!=!=!=!=!=!=!=!=!
1916 # This script is automatically generated: DO NOT EDIT!!!
1917 # Generated by Glasgow Haskell, version ${ProjectVersion}
1918 # ngoqvam choHbogh vaj' vIHoHnISbej !!!!
1920 \$pvm_executable = '$pvm_executable';
1921 \$pvm_executable_base = '$pvm_executable_base';
1922 \$SysMan = '$SysMan';
1925 print EXEC <<\EOSCRIPT2;
1926 # first, some magical shortcuts to run "commands" on the binary
1928 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1930 system("$cmd $pvm_executable");
1934 # OK, really run it; process the args first
1935 $ENV{'PE'} = $pvm_executable_base;
1937 $nprocessors = 2; # the default
1941 # ToDo: handle --RTS
1942 args: while ($a = shift(@ARGV)) {
1943 if ( $a eq '+RTS' ) {
1945 } elsif ( $a eq '-RTS' ) {
1948 if ( $a eq '-d' && $in_RTS_args ) {
1950 } elsif ( $a =~ /^-qN(\d+)/ && $in_RTS_args ) {
1952 } elsif ( $a =~ /^-qp(\d+)/ && $in_RTS_args ) {
1955 push(@nonPVM_args, $a);
1959 local($return_val) = 0;
1960 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
1962 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
1965 close(EXEC) || die "Failed closing $executable\n";
1966 chmod 0755, $executable;
1974 # append last minute flags linker and consistency flags
1979 # glue them together:
1980 push(@UserLibrary_dir, @SysLibrary_dir);
1982 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1984 &prepareWin32DllLink(0);
1986 local ($bld_dll) = "dllwrap";
1988 local ($output) = ($Specific_output_file ne '') ? "$Specific_output_file" : 'HSdll.dll';
1989 local ($output_dir);
1990 local ($output_file);
1991 local ($output_lib, $output_def);
1993 ($output_dir = $output) =~ s|(.*/)[^/]+$|$1|;
1994 $output_dir = "" if ($output_dir eq $output);
1995 ($output_file = $output) =~ s|.*/([^/]+)$|$1|;
1997 ($output_lib = $output_file) =~ s|(.+)\.[^\.]*$|${output_dir}lib$1_imp.a|;
1998 ($output_def = $output_file) =~ s|(.+)\.[^\.]*$|${output_dir}$1.def|;
2000 push (@Dll_flags, "-mno-cygwin --target=i386-mingw32") if ($TargetPlatform =~ /^.*mingw32$/);
2001 push (@Dll_flags, "--output-lib $output_lib");
2002 # If the "--def " option hasn't been supplied, assume everything
2003 # is going to be exported via the DLL.."
2004 if (!grep(/--def/, @Dll_flags)) {
2005 push (@Dll_flags, "--export-all --output-def $output_def");
2008 local($to_do) = "$bld_dll @Dll_flags -o $output @Link_file $libdirs @UserLibrary @SysLibrary";
2009 # Make sure the user sees this piece of magic.
2010 print STDERR "$to_do\n" if (!$Verbose);
2011 &run_something($to_do, 'DLL creator');
2014 sub prepareWin32DllLink
2016 local($linking_main) = @_;
2019 # Win32 DLLs - link with import libraries, not the real archives.
2021 if ( $TargetPlatform =~ /-mingw32$/ ) {
2024 # If the libraries have the form libHSfoo.a, we
2025 # transform that into libHSfoo_imp.a - the import
2026 # library of the DLL.
2028 foreach $a ( @SysLibrary ) {
2029 $a = "${a}_imp" if ($a =~ /^-lHS/);
2031 foreach $a ( @UserLibrary ) {
2032 $a = "${a}_imp" if ($a =~ /^-lHS/);
2034 push(@Link_file, ( $INSTALLING ) ? "$InstLibDirGhc/Main.dll_o"
2035 : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/Main.dll_o") if $linking_main;
2036 push(@Link_file, ( $INSTALLING ) ? "$InstLibDirGhc/PrelMain.dll_o"
2037 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std/PrelMain.dll_o") if $linking_main;
2039 push(@Ld_flags, "-mno-cygwin");
2045 %************************************************************************
2047 \section[Driver-misc-utils]{Miscellaneous utilities}
2049 %************************************************************************
2051 %************************************************************************
2053 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
2055 %************************************************************************
2059 local($ofile,$def_suffix) = @_;
2061 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
2065 local($orig_file, $def_suffix) = @_;
2066 if ($Specific_output_dir eq '') { # do nothing
2067 &osuf_ify($orig_file, $def_suffix);
2069 local ($orig_file_only);
2070 ($orig_file_only = $orig_file) =~ s|.*/||;
2071 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
2078 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
2080 local($includes) = '-I' . join(' -I', @Include_dir);
2083 local($c_flags) = "@CcBoth_flags";
2084 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2086 $c_flags .= " -mno-cygwin" if ( $TargetPlatform =~ /-mingw32$/ );
2088 # "input" files to use that are not in some weird directory;
2089 # to help C compilers grok .hc files [ToDo: de-hackify]
2090 local($cc_help) = "ghc$$.c";
2091 local($cc_help_s) = "ghc$$.s";
2094 $s_output = (($is_hc_file && $DoAsmMangling) || $TargetPlatform =~ /^(powerpc|rs6000|hppa)/) ? $cc_as_o : $cc_as;
2095 $c_flags .= " @CcRegd_flags";
2096 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2098 # C compiler won't like the .hc extension. So we create
2099 # a tmp .c file which #include's the needful.
2100 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2101 if ( $is_hc_file ) {
2105 # user may have asked for #includes to be injected...
2106 print TMP @CcInjects if $#CcInjects >= 0;
2108 # Straight .c files may want to know that they're being used
2109 # with a particular version of GHC, so we define __GLASGOW_HASKELL__ for their benefit.
2110 print TMP "#define __GLASGOW_HASKELL__ ${ProjectVersionInt}\n";
2112 # heave in the consistency info
2113 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2115 print TMP "#include \"$hsc_out\"\n";
2116 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2118 # Don't redirect stderr into intermediate file if slamming output onto stdout (e.g., with -E)
2119 local($fuse_stderr) = "2>&1" if ! $Only_preprocess_hc;
2120 local($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 )";
2122 if ( $Only_preprocess_hc ) { # HACK ALERT!
2123 $to_do =~ s/ -S\b//g;
2125 push(@Files_to_tidy, $cc_help, $cc_help_s, $s_output );
2126 $PostprocessCcOutput = 1 if ! $Only_preprocess_hc; # hack, dear hack...
2127 &run_something($to_do, 'C compiler');
2128 $PostprocessCcOutput = 0;
2129 if ( $Only_preprocess_hc ) {
2130 system("$Cat $Tmp_prefix.ccout");
2132 unlink($cc_help, $cc_help_s);
2138 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2140 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2142 if ($is_hc_file && $DoAsmMangling) {
2143 # dynamically load assembler-fiddling code, which we are about to use:
2144 require('ghc-asm.prl')
2145 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2146 # post-process the assembler [.hc files only]
2147 &mangle_asm($cc_as_o, $cc_as);
2149 } elsif ($TargetPlatform =~ /^hppa/) {
2150 # minor mangling of non-threaded files for hp-pa only
2151 require('ghc-asm.prl')
2152 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2153 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2155 } elsif ($TargetPlatform =~ /^powerpc|^rs6000/) {
2156 # minor mangling of non-threaded files for powerpcs and rs6000s
2157 require('ghc-asm.prl')
2158 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-powerpc.prl!\n");
2159 &mini_mangle_asm_powerpc($cc_as_o, $cc_as);
2162 # save a copy of the .s file, even if we are carrying on...
2163 #if ($do_as && $Keep_s_file_too) {
2164 # &saveIntermediate($ifile_root , "s" , $cc_as);
2171 local($as_out, $ifile_root) = @_;
2173 local($asmblr) = ( $As ) ? $As : $CcRegd;
2175 # need to add the -I flags in case the file is going through cpp (.S files)
2176 local($includes) = '-I' . join(' -I', @Include_dir);
2178 if ( ! $SplitObjFiles || $ifile_root =~ /_stub\.s$/ ) {
2179 local($to_do) = "$asmblr -o $as_out -c @As_flags $includes $cc_as";
2180 push(@Files_to_tidy, $as_out );
2181 &run_something($to_do, 'Unix assembler');
2183 } else { # more complicated split-ification...
2185 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2187 # If -odir is used, great, just pin it in front of the
2188 # generated split file names. If it hasn't been set, we
2189 # snatch it from the ifile_root.
2193 if ( $Specific_output_dir eq '' ) {
2194 $Specific_output_dir = ${ifile_root};
2197 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2198 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2199 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2200 push(@Files_to_tidy, $split_out );
2202 &run_something($to_do, 'Unix assembler');
2208 %************************************************************************
2210 \subsection[Driver-run-something]{@run_something@: Run a phase}
2212 %************************************************************************
2216 local($str_to_do, $tidy_name) = @_;
2218 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2219 print STDERR "$str_to_do\n" if $Verbose;
2221 if ($Using_dump_file) {
2222 open(DUMP, ">> $Specific_dump_file")
2223 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2224 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2226 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2229 local($return_val) = 0;
2231 if ( length($str_to_do) > 4000) {
2232 # 4000 - on the random side, just like the *real* ARG_MAX
2235 # With some shells, command lines of this length may
2236 # very well cause trouble. To safeguard against this, we squirrel the
2237 # command into a file and exec that.
2238 local ($sh) = $ENV{'REAL_SHELL'};
2239 print STDERR "Backup plan A: saving cmd line in ${Tmp_prefix}.sh and executing that with $sh\n" if $Verbose;
2240 open (TEMP, "> ${Tmp_prefix}.sh") ||
2241 &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.sh'\n");
2242 print TEMP "$Time $str_to_do\n";
2244 &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.sh'\n");
2245 system("$sh $Tmp_prefix.sh");
2248 unlink "${Tmp_prefix}.sh";
2250 system("$Time $str_to_do");
2254 if ( $PostprocessCcOutput ) { # hack, continued
2255 open(CCOUT, "< $Tmp_prefix.ccout")
2256 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2258 next if /call-clobbered/;
2259 next if /control reaches end/;
2260 next if /from .*Stg\.h:/;
2261 next if /from ghc\d+.c:\d+:/;
2262 next if /: At top level:$/;
2263 next if /: In function \`.*\':$/;
2264 next if /\`ghc_cc_ID\' defined but not used/;
2267 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2270 local($signal_num) = $? & 127;
2271 local($dumped_core) = $? & 128;
2273 if ($signal_num != 0) {
2274 print STDERR "$tidy_name received signal $signal_num";
2275 if ($dumped_core != 0) {
2276 print STDERR " (core dumped)";
2281 if ($return_val != 0) {
2282 if ($Using_dump_file) {
2283 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2285 &tidy_up_and_die($return_val, '');
2288 $Using_dump_file = 0;
2292 %************************************************************************
2294 \subsection[Driver-ghc-timing]{Emit nofibbish GHC timings}
2296 %************************************************************************
2298 NB: nearly the same as in @runstdtest@ script.
2301 sub process_ghc_timings {
2302 local($StatsFile) = "$Tmp_prefix.stat";
2303 local($SysSpecificTiming) = 'ghc';
2305 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2306 local($max_live) = 0;
2307 local($tot_live) = 0; # for calculating residency stuff
2308 local($tot_samples) = 0;
2311 if (! /Gen:\s+0/ && ! /Minor/ && /^\s*\d+\s+\d+\s+(\d+)\s+\d+\.\d+/ ) {
2312 $max_live = $1 if $max_live < $1;
2316 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2318 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2319 $MaxResidency = $1; $ResidencySamples = $2;
2322 $GCs = $1 if /^\s*([0-9,]+) (collections? in generation 0|garbage collections? performed)/;
2324 if ( /^\s+([0-9]+)\s+Mb total memory/ ) {
2328 # The presence of -? in the following pattern is only there to
2329 # accommodate 0.29 && <= 2.05 RTS'
2330 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*-?(\d+\.\d\d)s elapsed\)/ ) {
2331 $InitTime = $1; $InitElapsed = $2;
2332 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2333 $MutTime = $1; $MutElapsed = $2;
2334 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2335 $GcTime = $1; $GcElapsed = $2;
2338 close(STATS) || die "Failed when closing $StatsFile\n";
2339 if ( $tot_samples > 0 ) {
2340 $ResidencySamples = $tot_samples;
2341 $MaxResidency = $max_live;
2342 $AvgResidency = int ($tot_live / $tot_samples) ;
2345 # warn about what we didn't find
2346 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2347 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2348 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2349 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2350 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2351 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2352 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2353 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2355 # things we didn't necessarily expect to find
2356 $MaxResidency = 0 unless defined($MaxResidency);
2357 $AvgResidency = 0 unless defined($AvgResidency);
2358 $ResidencySamples = 0 unless defined($ResidencySamples);
2361 $BytesAlloc =~ s/,//g;
2362 $MaxResidency =~ s/,//g;
2364 $InitTime =~ s/,//g;
2365 $InitElapsed =~ s/,//g;
2367 $MutElapsed =~ s/,//g;
2369 $GcElapsed =~ s/,//g;
2371 # print out what we found
2372 print STDERR "<<$SysSpecificTiming: ",
2373 "$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)",
2374 " :$SysSpecificTiming>>\n";
2381 %************************************************************************
2383 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2385 %************************************************************************
2389 local($to_do) = "\n$Rm $Tmp_prefix*";
2390 if ( $Tmp_prefix !~ /^\s*$/ ) {
2391 print STDERR "$to_do\n" if $Verbose;
2396 sub tidy_up_and_die {
2397 local($return_val, $msg) = @_;
2399 # delete any files to tidy
2400 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2401 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2405 exit (($return_val == 0) ? 0 : 1);
2409 %************************************************************************
2411 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2413 %************************************************************************
2415 Some command-line arguments take an argument, e.g.,
2416 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2417 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2418 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2420 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2421 gobble the second argument (and probably set the heapsize to something
2425 local(*Args, $option, $rest_of_arg) = @_;
2427 if ($rest_of_arg ne '') {
2428 return($rest_of_arg);
2429 } elsif ($#Args >= 0) {
2430 local($temp) = $Args[0]; shift(@Args);
2433 print STDERR "$Pgm: no argument following $option option\n";
2444 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2446 foreach $f ( @HsC_antiflags ) {
2447 return(0) if $flag eq $f;
2449 # foreach $f ( @HsC_flags ) {
2450 # return(0) if $flag eq $f;
2455 sub squashHscFlag { # pretty terrible
2459 foreach $f ( @HsC_flags ) {
2460 if ($flag eq $f) { $f = ''; }
2468 foreach $f ( @flags ) {
2469 push( @HsC_flags, $f ) if &isntAntiFlag($f);
2474 To add another system library, you'll need to augment the
2475 Supported_syslibs variable with name and info on your addition
2476 to the syslib family. The info bit consist of the following:
2478 - interface file directory
2479 see the misc or posix entry for how to distinguish
2480 between using installed and build tree directories.
2482 - directory location of archives
2484 - location of (way-independent) C support libs.
2485 not all libraries need this - if you don't, just
2486 give the empty string.
2487 - list of syslibs you depend on.
2489 - additional ghc command line flags that should be used.
2490 - additional C compiler command line flags that should be used.
2496 # Hash to keep track of
2497 %Syslibs_added = ();
2500 local($syslib) = @_;
2502 # Lifting this out of this sub brings it out of scope - why??
2503 %Supported_syslibs =
2505 [ # where to slurp interface files from
2507 ? "$InstLibDirGhc/imports/lang"
2508 : "$TopPwd/hslibs/lang:$TopPwd/hslibs/lang/monads"
2510 , # where to find the archive to use when linking
2513 : "$TopPwd/hslibs/lang"
2515 , # where to find the cbits archive to use when linking
2518 : "$TopPwd/hslibs/lang/cbits"
2520 , '' # Syslib dependencies
2521 , '' # extra ghc opts
2522 , '' # extra cc opts
2523 , '' # extra ld opts
2527 [ # where to slurp interface files from
2529 ? "$InstLibDirGhc/imports/concurrent"
2530 : "$TopPwd/hslibs/concurrent"
2532 , # where to find the archive to use when linking
2535 : "$TopPwd/hslibs/concurrent"
2537 , '' # where to find the cbits archive to use when linking
2538 , '' # Syslib dependencies
2539 , '' # extra ghc opts
2540 , '' # extra cc opts
2541 , '' # extra ld opts
2545 [ # where to slurp interface files from
2547 ? "$InstLibDirGhc/imports/data"
2548 : "$TopPwd/hslibs/data:$TopPwd/hslibs/data/edison:$TopPwd/hslibs/data/edison/Assoc:$TopPwd/hslibs/data/edison/Coll:$TopPwd/hslibs/data/edison/Seq"
2550 , # where to find the archive to use when linking
2553 : "$TopPwd/hslibs/data"
2555 , '' # where to find the cbits archive to use when linking
2556 , 'lang' # Syslib dependencies
2557 , '' # extra ghc opts
2558 , '' # extra cc opts
2559 , '' # extra ld opts
2563 [ # where to slurp interface files from
2565 ? "$InstLibDirGhc/imports/net"
2566 : "$TopPwd/hslibs/net"
2568 , # where to find the archive to use when linking
2571 : "$TopPwd/hslibs/net"
2573 , # where to find the cbits archive to use when linking
2576 : "$TopPwd/hslibs/net/cbits"
2578 , 'lang text' # Syslib dependencies
2579 , '' # extra ghc opts
2580 , '' # extra cc opts
2581 , ( $TargetPlatform =~ /-solaris2$/ ? '-lnsl -lsocket' : '')
2585 [ # where to slurp interface files from
2587 ? "$InstLibDirGhc/imports/posix"
2588 : "$TopPwd/hslibs/posix"
2590 , # where to find the archive to use when linking
2593 : "$TopPwd/hslibs/posix"
2595 , # where to find the cbits archive to use when linking
2598 : "$TopPwd/hslibs/posix/cbits"
2600 , 'lang' # Syslib dependencies
2601 , '' # extra ghc opts
2602 , '' # extra cc opts
2603 , '' # extra ld opts
2607 [ # where to slurp interface files from
2609 ? "$InstLibDirGhc/imports/text"
2610 : "$TopPwd/hslibs/text:$TopPwd/hslibs/text/html:$TopPwd/hslibs/text/haxml/lib"
2612 , # where to find the archive to use when linking
2615 : "$TopPwd/hslibs/text"
2617 , # where to find the cbits archive to use when linking
2620 : "$TopPwd/hslibs/text/cbits"
2622 , 'lang data' # Syslib dependencies
2623 , '' # extra ghc opts
2624 , '' # extra cc opts
2625 , '' # extra ld opts
2629 [ # where to slurp interface files from
2631 ? "$InstLibDirGhc/imports/util"
2632 : "$TopPwd/hslibs/util"
2634 , # where to find the archive to use when linking
2637 : "$TopPwd/hslibs/util"
2639 , # where to find the cbits archive to use when linking
2642 : "$TopPwd/hslibs/util/cbits"
2644 , 'lang concurrent' # Syslib dependencies
2645 , '' # extra ghc opts
2646 , '' # extra cc opts
2647 , '' # extra ld opts
2651 [ # where to slurp interface files from
2653 ? "$InstLibDirGhc/imports/win32"
2654 : "$TopPwd/hslibs/win32/src"
2656 , # where to find the archive to use when linking
2659 : "$TopPwd/hslibs/win32/src"
2662 , 'lang' # Syslib dependencies
2663 , '' # extra ghc opts
2664 , '' # extra cc opts
2665 , '-luser32 -lgdi32' # extra ld opts
2669 [ # where to slurp interface files from
2671 ? "$InstLibDirGhc/imports/com"
2672 : "$TopPwd/hdirect/lib"
2674 , # where to find the archive to use when linking
2677 : "$TopPwd/hdirect/lib"
2680 , 'lang' # Syslib dependencies
2681 , '' # extra ghc opts
2682 , '' # extra cc opts
2683 , '-luser32 -lole32 -loleaut32 -ladvapi32'
2688 # check if it's supported..
2690 if ( !exists $Supported_syslibs{$syslib} ) {
2691 print STDERR "$Pgm: no such system library (-syslib): $syslib\n";
2696 # This check is here to avoid syslib loops from
2697 # spoiling the party. A side-effect of it is that
2698 # it disallows multiple mentions of a syslib on a command-line,
2699 # explicit *and* implicit ones (i.e., "-syslib lang -syslib misc"
2700 # is not equal to "-syslib lang -syslib misc -syslib lang",
2701 # which it needs to be)
2703 # Since our current collection of syslibs don't have any
2704 # loops, this test is disabled.
2706 # ToDo: loop avoidance scheme when the need arises
2708 #return if ( exists $Syslibs_added{$syslib} );
2710 $Syslibs_added{$syslib} = 1;
2712 local ($hi_dirs, $lib_dir, $lib_cbits_dir,
2713 $syslib_deps, $syslib_ghc_opts,
2714 $syslib_cc_opts, $syslib_ld_opts) = @{ $Supported_syslibs{$syslib} };
2716 foreach(split(':',$hi_dirs)) {
2717 unshift(@SysImport_dir, $_);
2719 push(@SysLibrary_dir, $lib_dir);
2720 push(@SysLibrary_dir, $lib_cbits_dir) if ( $lib_cbits_dir ne '');
2722 push(@SysLibrary, "-lHS$syslib");
2723 push(@SysLibrary, "-lHS${syslib}_cbits") if ( $lib_cbits_dir ne '');
2724 push(@SysLibrary, $syslib_ld_opts) if ($syslib_ld_opts ne '');
2726 # Add on any extra dependencies.
2727 foreach $lib (split(' ',$syslib_deps)) {
2733 Source files may have {-# OPTIONS ... #-} pragmas at the top, containing
2734 command line options we want to append to collection of commands specified
2735 directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell
2736 file for any such pragmas:
2739 sub check_for_source_options {
2740 local($file,$ifile) = @_;
2741 local($comment_start,$comment_end);
2743 if ($ifile =~ /\.hc$/ ||
2746 $ifile =~ /_s$/ ) { # `Real' C intermediate
2747 $comment_start = "/\\*";
2748 $comment_end = "\\*/";
2749 } else { # Assume it is a file containing Haskell source
2750 $comment_start = "{-#";
2751 $comment_end = "#-}";
2754 open(FILE,$file) || return(1); # No big loss
2757 if ( /^${comment_start} OPTIONS (.*)${comment_end}/ ) {
2758 # add the options found at the back of the command line.
2759 local(@entries) = split(/\s+/,$1);
2760 print STDERR "Found OPTIONS " . join(' ',@entries) . " in $file\n" if $Verbose;
2761 push(@File_options, @entries);
2763 elsif ( /^$/ ) { # ignore empty lines
2766 elsif ( /^#line.+$/ ) { # ignore comment lines (unused..ToDo: rm )
2769 elsif ( /^{-# LINE.+$/ ) { # ignore line pragmas
2772 else { # stop looking, something non-empty / not
2773 # ${comment_start} OPTIONS .. ${comment_end} encountered.
2774 close(FILE);return(0);
2783 We split the initial argv up into three arrays:
2789 the reason for doing so is to be able to deal
2790 with {-# OPTIONS #-} pragma in source files properly.
2796 arg: while($_ = $args[0]) {
2798 # sigh, we have to deal with these -option arg specially here.
2799 /^-(tmpdir|odir|ohi|o|isuf|osuf|hisuf|odump|syslib)$/ &&
2800 do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; };
2801 /^--?./ && do { push(@Cmd_opts, $_); next arg; };
2803 if (/\.([^_]+_)?[oa]$/) {
2804 push(@Link_file, $_);
2806 push(@Input_file, $_);
2809 # input files must exist:
2811 print STDERR "$Pgm: input file doesn't exist: $_\n";
2819 When saving an intermediate file (.hc or .s) away, we
2820 have to prefix any OPTIONS found in the original source file.
2823 sub saveIntermediate {
2824 local ($final,$suffix,$tmp)= @_ ;
2827 local ($new_suffix);
2829 # $final -- root of where to park ${final}.${suffix}
2830 # $tmp -- temporary file where hsc put the intermediate file.
2832 # HWL: use -odir for .hc and .s files, too
2833 if ( $Specific_output_dir ne '' ) {
2834 $final = "${Specific_output_dir}/${final}";
2836 # HWL: use the same suffix as for $Osuffix in generating intermediate file,
2837 # replacing o with hc or s, respectively.
2838 if ( $Osuffix ne '' ) {
2839 ($new_suffix = $Osuffix) =~ s/o$/hc/ if $suffix eq "hc";
2840 ($new_suffix = $Osuffix) =~ s/o$/s/ if $suffix eq "s";
2841 $suffix = $new_suffix;
2842 print stderr "HWL says: suffix for intermediate file is $suffix; ${final}.${suffix} overall\n" if $Verbose;
2845 # Delete the old file
2846 $to_do = "$Rm ${final}.${suffix}"; &run_something($to_do, "Removing old .${suffix} file");
2848 if ( $#File_options >= 0 ) { # OPTIONS found in Haskell source unit
2849 # Add OPTION comment to the top of the generated .${suffix} file
2850 open(TEMP, "> ${final}.${suffix}") || &tidy_up_and_die(1,"Can't open ${final}.${suffix}\n");
2851 print TEMP "/* OPTIONS " . join(' ',@File_options) . " */\n";
2853 print STDERR "Prepending OPTIONS: " . join(' ',@File_options) . " to ${final}.${suffix}\n" if $Verbose;
2855 $to_do = "$Cat $tmp >> ${final}.${suffix}";
2856 &run_something($to_do, "Saving copy of .${suffix} file");
2863 Command-line processor
2869 # can't use getopt(s); what we want is too complicated
2871 arg: while($_ = $Args[0]) {
2874 #---------- help -------------------------------------------------------
2875 if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; }
2877 #-----------version ----------------------------------------------------
2878 /^--version$/ && do { print STDERR "${ProjectName}, version ${ProjectVersion}\n"; exit $Status; };
2880 #---------- verbosity and such -----------------------------------------
2881 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
2883 #---------- what phases are to be run ----------------------------------
2884 /^-(no-)?recomp/ && do { $Do_recomp_chkr = ($1 eq '') ? 1 : 0; next arg; };
2886 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
2887 # change the global default:
2888 # we won't run cat; we'll run the real thing
2890 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
2892 # stop after generating C
2894 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
2895 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
2897 # leave out actual C generation (debugging) [also turns off interface gen]
2900 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
2901 # _do_ generate an interface; usually used as: -noC -hi
2902 /^-hi-with-(.*)$/ && do { $HiOnStdout = 1; $HiWith .= " $1" ; $ProduceHi = '-hifile='; next arg; };
2903 # limit ourselves to outputting a particular section.
2905 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
2906 # don't generate an interface (even if generating C)
2908 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
2909 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
2910 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
2911 /^-keep-hi-diffs$/ && do { $Keep_HiDiffs = 1; next arg; };
2913 # show/disable diffs if the interface file changes
2915 /^-E$/ && do { push(@CcBoth_flags, '-E');
2916 $Only_preprocess_C = 1;
2917 $Do_as = 0; $Do_lnkr = 0; next arg; };
2918 # stop after preprocessing C
2919 /^-M$/ && do { $Only_generate_deps = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2920 # only generate dependency information.
2921 /^--mk-dll$/ && do { $Only_generate_dll = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2922 # Build a Win32 DLL (where supported).
2923 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
2924 # stop after generating assembler
2926 /^-c$/ && do { $Do_lnkr = 0; next arg; };
2927 # stop after generating .o files
2929 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
2930 # don't do consistency-checking after a link
2931 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
2933 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', '');
2934 $Tmp_prefix = "$Tmp_prefix/ghc$$";
2935 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
2937 # use an alternate directory for temp files
2939 #---------- redirect output --------------------------------------------
2941 # -o <file>; applies to the last phase, whatever it is
2942 # "-o -" sends it to stdout
2943 # if <file> has a directory component, that dir must already exist
2945 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', '');
2947 # Hack, of the worst sort: don't do validation of
2948 # odir argument if you're using -M (dependency generation).
2950 if ( ! $Only_generate_deps && ! -d $Specific_output_dir) {
2951 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
2956 /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', '');
2957 if ($Specific_output_file ne '-'
2958 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
2959 local($dir_part) = $1;
2960 if (! -d $dir_part) {
2961 print STDERR "$Pgm: no such directory: $dir_part\n";
2967 # NB: -isuf not documented yet (because it doesn't work yet)
2968 /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', '');
2969 if ($Isuffix =~ /\./ ) {
2970 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
2975 /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', '');
2976 if ($Osuffix =~ /\./ ) {
2977 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
2982 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
2983 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', '');
2984 if ($Specific_hi_file ne '-'
2985 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
2986 local($dir_part) = $1;
2987 if (! -d $dir_part) {
2988 print STDERR "$Pgm: no such directory: $dir_part\n";
2992 $ProduceHi='-hifile=';
2995 # The suffix to use when looking for interface files
2996 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', '');
2997 if ($HiSuffix =~ /\./ ) {
2998 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
3002 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', '');
3003 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
3004 local($dir_part) = $1;
3005 if (! -d $dir_part) {
3006 print STDERR "$Pgm: no such directory: $dir_part\n";
3012 #-------------- scc & Profiling Stuff ----------------------------------
3014 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
3016 /^-auto-dicts$/ && do {
3017 $PROFdicts = '-fauto-sccs-on-dicts';
3019 /^-auto-all$/ && do {
3020 $PROFauto = '-fauto-sccs-on-all-toplevs';
3023 $PROFauto = '-fauto-sccs-on-exported-toplevs';
3026 /^-caf-all/ && do { # generate individual CAF SCC annotations
3027 $PROFcaf = '-fauto-sccs-on-individual-cafs';
3030 /^-ignore-scc$/ && do {
3031 # forces ignore of scc annotations even if profiling
3032 $PROFignore_scc = '-W';
3035 /^-unprof-scc-auto/ && do {
3036 # generate auto SCCs on top level bindings when not profiling.
3037 # Used to measure optimisation effects of presence of sccs.
3038 $UNPROFscc_auto = ( /-all/ )
3039 ? '-fauto-sccs-on-all-toplevs'
3040 : '-fauto-sccs-on-exported-toplevs';
3043 #--------- ticky/parallel ----------------------------------------------
3044 # we sort out the details a bit later on
3046 /^-gransim$/ && do { $GRANing = 'g'; &add_syslib('concurrent'); next arg; }; # GranSim
3047 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
3048 /^-parallel$/ && do { $PARing = 'p'; &add_syslib('concurrent'); next arg; }; # parallel Haskell
3049 /^-smp$/ && do { $SMPing = 's'; &add_syslib('concurrent'); next arg; }; # parallel Haskell
3051 #-------------- "user ways" --------------------------------------------
3053 (/^-user-setup-([a-oA-Z])$/ ) &&
3055 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
3057 local($stuff) = $UserSetupOpts{$BuildTag};
3058 local(@opts) = split(/\s+/, $stuff);
3060 # feed relevant ops into the arg-processing loop (if any)
3061 unshift(@Args, @opts) if $#opts >= 0;
3065 #---------- set search paths for libraries and things ------------------
3067 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
3068 # prepends the items to the list); -I is for including C .h files.
3070 /^-i$/ && do { @Import_dir = (); # import path cleared!
3071 @SysImport_dir = ();
3072 print STDERR "WARNING: import paths cleared by `-i'\n";
3075 /^-i(.*)/ && do { local(@new_items);
3079 if ( $arg =~ /;/ ) {
3081 @new_items = split( /;/, &grab_arg_arg(*Args,'-i', $arg));
3083 @new_items = split( /:/, &grab_arg_arg(*Args,'-i', $arg));
3085 unshift(@Import_dir, @new_items);
3088 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; };
3089 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; };
3090 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; };
3092 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1);
3093 &add_syslib($syslib);
3096 #=======================================================================
3097 # various flags that we can harmlessly send to one program or another
3098 # (we will later "reclaim" some of the compiler ones now sent to gcc)
3099 #=======================================================================
3101 #---------- this driver itself (ghc) -----------------------------------
3102 # these change what executable is run for each phase:
3103 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
3104 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
3105 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
3106 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
3107 /^-pgma(.*)$/ && do { $As = $1; next arg; };
3108 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
3109 /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; };
3111 #---------- the get-anything-through opts (all pgms) -------------------
3112 # these allow arbitrary option-strings to go to any phase:
3113 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
3114 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
3115 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
3116 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
3117 /^-optcpp(.*)$/ && do { push(@Cpp_define, $1); $Only_preprocess_hc = ($1 eq "-E"); next arg; };
3118 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
3119 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
3120 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
3121 /^-optdll(.*)$/ && do { push(@Dll_flags, $1); next arg; };
3122 /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; };
3124 #---------- Haskell C pre-processor (hscpp) ----------------------------
3125 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; };
3126 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; };
3128 #---------- post-Haskell "assembler"------------------------------------
3129 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
3130 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
3132 #---------- Haskell compiler (hsc) -------------------------------------
3134 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
3135 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
3137 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
3138 /^-fignore-asserts$/ && do { push(@HsC_flags, $_); next arg; };
3140 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
3143 # have the compiler proper generate concurrent code,
3144 # really only used when you want to configure your own
3145 # special user compilation way.
3147 # (ditto for -fgransim, fscc-profiling, -fparallel and -fticky-ticky)
3149 /^-fscc-profiling$/ && do { push(@HsC_flags,$_); next arg; };
3150 /^-fticky-ticky$/ && do { push(@HsC_flags,$_); next arg; };
3151 /^-fgransim$/ && do { push(@HsC_flags,$_); next arg; };
3152 /^-fparallel$/ && do { push(@HsC_flags,$_); next arg; };
3153 /^-fsmp$/ && do { push(@HsC_flags,$_); next arg; };
3155 /^-split-objs$/ && do {
3156 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|rs6000|sparc)-/ ) {
3158 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
3163 push(@HsC_flags, "-fglobalise-toplev-names");
3164 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
3166 require('ghc-split.prl')
3167 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
3171 /^-unreg$/ && do { $UNREGing = 'u'; next arg; };
3172 /^-funregisterised$/ && do { push(@HsC_flags, $_); next arg; };
3173 /^-fno-asm-mangling$/ && do { $DoAsmMangling = 0; next arg; };
3175 /^-fallow-overlapping-instances$/ && do { push(@HsC_flags, $_); next arg; };
3176 /^-fallow-undecidable-instances$/ && do { push(@HsC_flags, $_); next arg; };
3177 /^-fhistory-size.*$/ && do { push(@HsC_flags, $_); next arg; };
3178 /^-fdicts-strict$/ && do { push(@HsC_flags, $_); next arg; };
3180 && do { push(@HsC_flags, $_);
3182 # -fglasgow-exts implies -syslib lang
3183 &add_syslib('lang');
3188 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
3189 /^-fno-speciali[sz]e$/
3190 && do { $Oopt_DoSpecialise = ''; next arg; };
3193 && do { $Oopt_UsageSPInf = '-fusagesp';
3194 push (@HsC_flags, '-fusagesp-on'); next arg; };
3196 /^-fcompiling-prelude$/ && do { $CompilingPrelude=1; push(@HsC_flags, $_); next arg; };
3198 # Now the foldr/build options, which are *on* by default (for -O).
3201 && do { $Oopt_FoldrBuild = 1;
3205 /^-fno-foldr-build$/
3206 && do { $Oopt_FoldrBuild = 0;
3209 # --------------- Renamer -------------
3212 /^-fno-prune-tydecls$/ && do { push(@HsC_flags, $_); next arg; };
3213 /^-fno-prune-instdecls$/ && do { push(@HsC_flags, $_); next arg; };
3217 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
3218 /^-fvia-[cC]$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
3223 && do { push(@HsC_flags, $_); next arg };
3225 /^-fliberate-case-.*$/
3226 && do { push(@HsC_flags, $_); next arg };
3228 /^-funfold-casms-in-hi-file$/
3229 && do { push(@HsC_flags, $_); next arg };
3231 /^(-fmax-simplifier-iterations)(.*)$/
3232 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2);
3235 /^-fno-pedantic-bottoms$/
3236 && do { $Oopt_PedanticBottoms = ''; next arg; };
3238 /^-fno-pre-inlining$/
3239 && do { push(@HsC_flags, $_); next arg };
3241 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
3242 && do { push(@HsC_flags, $_); next arg; };
3244 /^-funbox-strict-fields$/
3245 && do { push(@HsC_flags, $_); next arg; };
3247 # --------------- Warnings etc. ------
3249 /^-fwarn-(.*)$/ && do { push(@HsC_flags, $_); next arg; };
3251 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
3252 &squashHscFlag("-f$1");
3255 /^-W$/ && do { push(@HsC_flags, @MinusWOpts); next arg; };
3256 /^-Wall$/ && do { push(@HsC_flags, @MinusWallOpts); next arg; };
3257 /^(-Wnot|w)$/ && do { foreach (@Hsc_flags) {
3258 /^-fwarn-(.*)$/ && do { $_=''; };
3260 push(@HsC_antiflags, @StandardWarnings);
3263 # --------------- fun stuff ----------------
3265 /^-freport-compile$/ && do { push(@HsC_flags, $_); next arg; };
3267 # --------------- platform specific flags (for gcc mostly) ----------------
3269 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes,
3270 # for 2.6.x..?, does not apply for 2.7.2
3272 unshift(@CcBoth_flags, ( $_ ));
3275 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
3276 && do { # for GCC for SPARCs
3277 unshift(@CcBoth_flags, ( $_ ));
3280 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
3281 $StolenX86Regs = $1;
3284 #*************** ... and lots of debugging ones (form: -d* )
3286 # -d(no-)core-lint is done this way so it is turn-off-able.
3287 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
3288 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
3289 # Ditto for USP lint
3290 /^-dusagesp-lint/ && do { $USPLint = '-dusagesp-lint'; next arg; };
3291 /^-dno-usagesp-lint/ && do { $USPLint = ''; next arg; };
3292 # Ditto for STG lint
3293 /^-dstg-lint/ && do { $StgLint = '-dstg-lint'; next arg; };
3294 /^-dno-stg-lint/ && do { $StgLint = ''; next arg; };
3296 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
3297 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
3298 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
3299 /^-dshow-rn-stats/ && do { push(@HsC_flags, $_); next arg; };
3300 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
3301 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
3302 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
3303 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
3305 #*************** ... and now all these -R* ones for its runtime system...
3307 /^-Rscale-sizes?(.*)/ && do {
3308 $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1);
3311 /^(-H|-Rmax-heapsize)(.*)/ && do {
3312 local($heap_size) = &grab_arg_arg(*Args,$1, $2);
3313 if ($heap_size =~ /(\d+)[Kk]$/) {
3314 $heap_size = $1 * 1000;
3315 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
3316 $heap_size = $1 * 1000 * 1000;
3317 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
3318 $heap_size = $1 * 1000 * 1000 * 1000;
3320 if ($heap_size <= 0) {
3321 print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n";
3322 $Specific_heap_size = 0;
3324 # if several heap sizes given, take the largest...
3325 } elsif ($heap_size >= $Specific_heap_size) {
3326 $Specific_heap_size = $heap_size;
3328 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n" if $Verbose;
3332 /^(-K|Rmax-(stk|stack)size)(.*)/ && do {
3334 local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3);
3335 if ($stk_size =~ /(\d+)[Kk]$/) {
3336 $stk_size = $1 * 1000;
3337 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
3338 $stk_size = $1 * 1000 * 1000;
3339 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
3340 $stk_size = $1 * 1000 * 1000 * 1000;
3342 if ($stk_size <= 0) {
3343 print STDERR "$Pgm: resetting stack-size to zero!!! $stk_size\n";
3344 $Specific_stk_size = 0;
3346 # if several stack sizes given, take the largest...
3347 } elsif ($stk_size >= $Specific_stk_size) {
3348 $Specific_stk_size = $stk_size;
3350 print STDERR "$Pgm: ignoring stack-size-setting option ($flag $stk_size)...not the largest seen\n" if $Verbose;
3354 /^-Rgc-stats$/ && do { $CollectingGCstats++;
3355 # the two RTSs do this diff ways; we will try to compensate
3358 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
3360 #---------- C high-level assembler (gcc) -------------------------------
3361 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
3363 # -dgcc-lint is a useful way of making GCC very fussy.
3364 # From alan@spri.levels.unisa.edu.au (Alan Modra).
3365 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
3366 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
3367 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
3369 # inject "#include <wurble>" into the compiler's C output!
3371 /^-#include(.*)/ && do {
3372 local($to_include) = &grab_arg_arg(*Args,'-#include', $1);
3373 push(@CcInjects, "#include $to_include\n");
3376 #---------- Linker (gcc, really) ---------------------------------------
3378 /^-static$/ && do { $Static=1; push(@Ld_flags, $_); next arg; };
3379 /^-no-hs-main$/ && do { $NoHaskellMain=1; next arg; };
3381 #---------- mixed cc and linker magic ----------------------------------
3382 # this optimisation stuff is finally sorted out later on...
3384 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
3386 /^-O[1-2]?$/ && do {
3387 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
3388 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
3390 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
3393 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
3395 /^-Ofile(.*)/ && do {
3397 local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1);
3398 @HsC_minusO3_flags = ();
3400 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
3403 s/\#.*//; # death to comments
3404 s/[ \t]+//g; # death to whitespace
3405 next if /^$/; # ditto, blank lines
3406 s/([()*{}])/\\$1/g; # protect shell metacharacters
3408 push(@CcBoth_flags, $1);
3410 push(@HsC_minusO3_flags, $_);
3416 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
3417 # in the consistency info
3421 #---------- linking .a file --------------------------------------------
3423 /^-Main(.*)/ && do {
3424 # specifies main or mainPrimIO to be linked
3428 #---------- catch unrecognized flags -----------------------------------
3431 print STDERR "$Pgm: unrecognised option: $_\n";
3437 } # end of processArgs