1 % (c) The GRASP/AQUA Project, Glasgow University, 1992-1997
4 This is the driver script for the Glasgow Haskell compilation system.
5 It is written in \tr{perl}. The first section includes a long
6 ``usage'' message that describes how the driver is supposed to work.
8 %************************************************************************
10 \section[Driver-usage]{Usage message}
12 %************************************************************************
15 ($Pgm = $0) =~ s|.*/||;
16 $ShortUsage = "\nUsage: For basic information, try the `-help' option.\n";
17 $LongUsage = "\n" . <<EOUSAGE;
18 Use of the Glorious Haskell Compilation System driver:
20 $Pgm [command-line-options-and-input-files]
22 ------------------------------------------------------------------------
23 This driver ($Pgm) guides each input file through (some of the)
24 possible phases of a compilation:
26 - unlit: extract code from a "literate program"
27 - hscpp: run code through the C pre-processor (if -cpp flag given)
28 - hsc: run the Haskell compiler proper
29 - gcc: run the C compiler (if compiling via C)
30 - as: run the assembler
33 For each input file, the phase to START with is determined by the
35 - .lhs literate Haskell: unlit
36 - .hs illiterate Haskell: hsc
37 - .hc C from the Haskell compiler: gcc
38 - .c C not from the Haskell compiler: gcc
39 - .s assembly language: as
40 - other passed directly to the linker: ld
42 If no files are given on the command line, input is taken from
43 standard input, and processing is as for an .hs file. (All output is
44 to stdout or stderr, however).
46 The phase at which to STOP processing is determined by a command-line
48 -E stop after generating preprocessed, de-litted Haskell (used in conjunction with -cpp)
49 -C stop after generating C (.hc output)
50 -S stop after generating assembler (.s output)
51 -c stop after generating object files (.o output)
53 Other commonly-used options are:
55 -O An `optimising' package of compiler flags, for faster code
57 -prof Compile for cost-centre profiling
58 (add -auto for automagic cost-centres on top-level functions)
60 -fglasgow-exts Allow Glasgow extensions (unboxed types, etc.)
62 -H14m Increase compiler's heap size
64 -M Output the Makefile rules recording the
65 dependencies of a list of Haskell files.
66 (ghc driver script calls upon the help of a
67 compatible mkdependHS script to do the actual
70 The User's Guide has more information about GHC's *many* options.
72 Given the above, here are some TYPICAL invocations of $Pgm:
74 # compile a Haskell module to a .o file, optimising:
76 # link three .o files into an executable called "test":
77 % $Pgm -o test Foo.o Bar.o Baz.o
78 # compile a Haskell module to C (a .hc file), using a bigger heap:
79 % $Pgm -C -H16m Foo.hs
80 # compile Haskell-produced C (.hc) to assembly language:
82 ------------------------------------------------------------------------
86 %************************************************************************
88 \section[Driver-init]{Initialisation}
90 %************************************************************************
92 The driver script need to be told where to find these executables, so
93 in the course of building the driver `executable', make-variables holding
94 these are prepended to the de-litted version of this file. The variables are:
99 HOSTPLATFORM TARGETPLATFORM
101 ProjectName ProjectVersion ProjectVersionInt ProjectPatchLevel
103 HscMajorVersion HscMinorVersion CcMajorVersion CcMinorVersion
107 bindir libdir libexecdir datadir
111 GHC_LIB_DIR GHC_RUNTIME_DIR GHC_UTILS_DIR GHC_INCLUDE_DIR
113 GHC_OPT_HILEV_ASM GhcWithNativeCodeGen
115 GHC_UNLIT GHC_HSCPP GHC_HSC GHC_SYSMAN
119 WAY_*_NAME WAY_*_HC_OPTS
125 Establish what executables to run for the various phases, what the
126 default options are for those phases, and other similar boring stuff.
129 select(STDERR); $| = 1; select(STDOUT); # no STDERR buffering, please.
131 $TargetPlatform = $TARGETPLATFORM;
133 $TopPwd = "${TOP_PWD}";
134 $InstBinDirGhc = "${bindir}";
135 $InstLibDirGhc = "${libdir}";
137 # Normally the same as InstLibDirGhc, but we accommodate
138 # for it being separate.
140 $InstLibExecDirGhc = "${libexecdir}";
141 $InstDataDirGhc = "${datadir}";
143 $Status = 0; # just used for exit() status
146 # set up signal handler
147 sub quit_upon_signal { &tidy_up_and_die(1, ''); }
148 $SIG{'INT'} = 'quit_upon_signal';
149 $SIG{'QUIT'} = 'quit_upon_signal';
151 # where to get "require"d .prl files at runtime (poor man's dynamic loading)
152 # (use LIB, not DATA, because we can't be sure of arch-independence)
153 @INC = ( ( $INSTALLING ) ? $InstLibDirGhc
154 : "$TopPwd/${CURRENT_DIR}" );
156 if ( $ENV{'TMPDIR'} ) { # where to make tmp file names
157 $Tmp_prefix = ($ENV{'TMPDIR'} . "/ghc$$");
159 print STDERR "TMPDIR has not been set to anything useful!\n" if (${TMPDIR} eq '');
160 $Tmp_prefix ="${TMPDIR}/ghc$$"; # TMPDIR set via Makefile when booting..
161 $ENV{'TMPDIR'} = ${TMPDIR}; # set the env var as well
164 # Some shells run into real trouble when command line and environment
165 # gets big (e.g., cmd lines of >4K to /bin/sh causes havoc on our
166 # Solaris-2.5.1 boxes - even though sysconf(_SC_ARG_MAX) reports 1M ...).
167 # To work around any such */bin/sh* problems, we will scribble such
168 # awfully long command lines into a temp file and exec that temp file
169 # with $(REAL_SHELL) (don't use the SHELL variable directly as this
170 # will normally get you the wrong thing when the driver is invoked
171 # from within `make'). If the REAL_SHELL variable isn't set, you'll
172 # get SHELL. This is all a terrible hack. (in case you hadn't reached
173 # the same conclusion by now :-)
177 if ( ! $ENV{'REAL_SHELL'} ) {
178 $ENV{'REAL_SHELL'} = $ENV{'SHELL'};
181 @Files_to_tidy = (); # files we nuke in the case of abnormal termination
183 $Unlit = ( $INSTALLING ) ? "$InstLibExecDirGhc/unlit"
184 : "$TopPwd/${CURRENT_DIR}/${GHC_UNLIT}";
188 $Diff = $CONTEXT_DIFF;
193 $HsCpp = # but this is re-set to "cat" (after options) if -cpp not seen
194 ( $INSTALLING ) ? "$InstLibExecDirGhc/hscpp"
195 : "$TopPwd/${CURRENT_DIR}/${GHC_HSCPP}";
198 $HsC = ( $INSTALLING ) ? "$InstLibExecDirGhc/hsc"
199 : "$TopPwd/${CURRENT_DIR}/${GHC_HSC}";
201 # For PVM fiends only
202 $SysMan = ( $INSTALLING ) ? "$InstLibExecDirGhc/SysMan"
203 : "$TopPwd/${CURRENT_DIR}/${GHC_SYSMAN}";
208 # HsC_rts_flags: if we want to talk to the LML runtime system
209 # NB: we don't use powers-of-2 sizes, because this may do
210 # terrible things to cache behavior.
212 $Specific_heap_size = 6 * 1000 * 1000;
213 $Specific_stk_size = 1000 * 1000;
214 $Scale_sizes_by = 1.0;
218 The variables set by @setupOptFlags@ represent parts of the
219 -O/-O2/etc ``templates,'' which are filled in later, using these.
220 These are the default values, which may be changed by user flags.
224 $Oopt_MaxSimplifierIterations = '-fmax-simplifier-iterations4';
225 $Oopt_PedanticBottoms = '-fpedantic-bottoms'; # ON by default
226 $Oopt_MonadEtaExpansion = '';
227 $Oopt_FinalStgProfilingMassage = '';
229 $Oopt_DoSpecialise = '-fspecialise';
230 $Oopt_FoldrBuild = 0; # *Off* by default!
231 $Oopt_FB_Support = ''; # was '-fdo-arity-expand';
232 # $Oopt_FoldrBuildWW = 0; # Off by default
233 $Oopt_FoldrBuildInline = ''; # was '-fdo-inline-foldr-build';
234 $Oopt_ShowSimplifierProgress = '';
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
266 # 'nm' is used for consistency checking (ToDo: mk-world-ify)
267 # ToDo: check the OS or something ("alpha" is surely not the crucial question)
268 $Nm = ($TargetPlatform =~ /^alpha-/) ? 'nm -B' : 'nm';
271 Warning packages that are controlled by -W and -Wall. The 'standard'
272 warnings that you get all the time are
274 -fwarn-overlapping-patterns
275 -fwarn-missing-methods
276 -fwarn-duplicate-exports
278 these are turned off by -Wnot.
281 @StandardWarnings = ('-fwarn-overlapping-patterns',
282 '-fwarn-missing-methods',
283 '-fwarn-duplicate-exports');
284 @MinusWOpts = (@StandardWarnings,
285 '-fwarn-incomplete-patterns',
286 '-fwarn-unused-binds',
287 '-fwarn-unused-imports');
288 @MinusWallOpts = (@MinusWOpts,
289 '-fwarn-unused-matches',
290 '-fwarn-type-defaults',
291 '-fwarn-name-shadowing',
292 '-fwarn-missing-signatures');
295 What options \tr{-user-setup-a} turn into (user-defined ``packages''
297 of options). Note that a particular user-setup implies a particular
298 Prelude ({\em including} its interface file(s)).
300 $BuildTag = ''; # default is sequential build w/ Appel-style GC
302 %BuildDescr = (# system ways begin
303 '', 'normal sequential',
307 '_mp', "$WAY_mp_NAME",
308 '_mg', "$WAY_mg_NAME",
326 '_B', "$WAY_B_NAME" );
328 # these are options that are "fed back" through the option processing loop
332 '_a', "$WAY_a_HC_OPTS",
333 '_b', "$WAY_b_HC_OPTS",
334 '_c', "$WAY_c_HC_OPTS",
335 '_d', "$WAY_d_HC_OPTS",
336 '_e', "$WAY_e_HC_OPTS",
337 '_f', "$WAY_f_HC_OPTS",
338 '_g', "$WAY_g_HC_OPTS",
339 '_h', "$WAY_h_HC_OPTS",
340 '_i', "$WAY_i_HC_OPTS",
341 '_j', "$WAY_j_HC_OPTS",
342 '_k', "$WAY_k_HC_OPTS",
343 '_l', "$WAY_l_HC_OPTS",
344 '_m', "$WAY_m_HC_OPTS",
345 '_n', "$WAY_n_HC_OPTS",
346 '_o', "$WAY_o_HC_OPTS",
347 '_A', "$WAY_A_HC_OPTS",
348 '_B', "$WAY_B_HC_OPTS",
351 '_p', "$WAY_p_HC_OPTS",
352 '_t', "$WAY_t_HC_OPTS",
353 '_u', "$WAY_u_HC_OPTS",
354 '_mp', "$WAY_mp_HC_OPTS",
355 '_mg', "$WAY_mg_HC_OPTS");
359 Import/include directories (\tr{-I} options) are sufficiently weird to
360 require special handling.
363 @Import_dir = ('.'); #-i things
364 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
366 # where to look for interface files (system hi's, i.e., prelude and syslibs)
367 @SysImport_dir = ( $INSTALLING )
368 ? ( "$InstLibDirGhc/imports/std" )
369 : ( "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std" );
371 # We need to look in ghc/ and glaExts/ when searching for implicitly needed .hi files, but
372 # we should really *not* look there for explicitly imported modules.
374 $Haskell1Version = 5; # i.e., Haskell 1.4
377 # Cpp symbols defined when we're processing Haskell source.
380 ( "-D__HASKELL1__=$Haskell1Version"
381 , "-D__GLASGOW_HASKELL__=$ProjectVersionInt"
384 # , "-D__CONCURRENT_HASKELL__"
387 @UserLibrary_dir= (); #-L things;...
388 @UserLibrary = (); #-l things asked for by the user
390 @SysLibrary_dir = ( ( $INSTALLING ) #-syslib things supplied by the system
392 : ( "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR"
393 , "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/gmp"
394 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std"
395 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std/cbits"
398 @SysLibrary = (); # will be built up as we go along
400 $TopClosureFile # defaults to 1.2 one; will be mangled later
402 # ( $INSTALLING) ? "$InstLibDirGhc/TopClosureXXXX.o"
403 # : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/main/TopClosureXXXX.o";
405 # make depend for Haskell
407 = ( $INSTALLING ) ? "$InstBinDirGhc/mkdependHS"
408 : "$TopPwd/$CURRENT_DIR/$GHC_UTILS_DIR/mkdependHS/mkdependHS";
410 @MkDependHS_flags = ();
412 # do_link flag should not be reset while rescanning the cmd-line.
414 $Specific_output_dir = ''; # set by -odir <dir>
415 $Specific_output_file = ''; # set by -o <file>; "-" for stdout
418 Function to initialise the per-compilation-unit globals that
419 are used to guide and control the invocation of the different phases.
422 sub initDriverGlobals {
424 # reset the following options:
425 # RTS flags to use while compiling
427 @HsP_flags = (); # these are the flags destined solely for
428 # the flex/yacc parser
433 The optimisations/etc to be done by the compiler are {\em normally}
434 expressed with a \tr{-O} (or \tr{-O2}) flag, or by its absence.
437 $OptLevel = 0; # no -O == 0; -O == 1; -O2 == 2; -Ofile == 3
438 $MinusO2ForC = 0; # set to 1 if -O2 should be given to C compiler
439 $StolenX86Regs = 4; # **HACK*** of the very worst sort
443 @Import_dir = ('.'); #-i things
444 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
449 We are given a list of files with various presumably-known suffixes
450 (unknown-suffix files go straight to the linker). For each file, we
451 begin by assuming that we'll run every phase over it. However: (1)
452 global flags (\tr{-c}, \tr{-S}, etc.) tell us not to run any phase
453 past a certain point; and (2) the file's suffix tells us what phase to
454 start with. Linking is weird and kept track of separately.
456 Here are the initial defaults applied to all files:
458 $Cpp_flag_set = 0; # (hack)
459 $Only_preprocess_C = 0; # pretty hackish
460 $Only_preprocess_hc = 0; # ditto
461 $Only_generate_deps = 0; # "
462 $PostprocessCcOutput = 0;
464 # native code-gen or via C?
465 $HaveNativeCodeGen = $GhcWithNativeCodeGen;
466 $HscOut = '-C='; # '-C=' ==> .hc output; '-S=' ==> .s output; '-N=' ==> neither
468 if $HaveNativeCodeGen && $TargetPlatform =~ /^(alpha)-/;
469 # TEMP: disable x86 & Sparc if $HaveNativeCodeGen && $TargetPlatform =~ /^(i386|alpha|sparc)-/;
470 $ProduceHi = '-hifile=';
476 $CollectingGCstats = 0;
477 $CollectGhcTimings = 0;
478 $DEBUGging = ''; # -DDEBUG and all that it entails (um... not really)
479 $PROFing = ''; # set to p or e if profiling
480 $PROFgroup = ''; # set to group if an explicit -Ggroup specified
481 $PROFauto = ''; # set to relevant hsc flag if -auto or -auto-all
482 $PROFcaf = ''; # set to relevant hsc flag if -caf-all
483 $PROFignore_scc = ''; # set to relevant parser flag if explicit sccs ignored
484 $UNPROFscc_auto = ''; # set to relevant hsc flag if forcing auto sccs without profiling
485 $TICKYing = ''; # set to t if compiling for ticky-ticky profiling
486 $PARing = ''; # set to p if compiling for PAR
487 $GRANing = ''; # set to g if compiling for GRAN
488 $Specific_hi_file = ''; # set by -ohi <file>; "-" for stdout
489 $Specific_dump_file = ''; # set by -odump <file>; "-" for stdout
490 $Using_dump_file = 0;
492 $Osuffix = ''; # default: use the normal suffix for that kind of output
494 $HiSuffix_prelude = '';
495 $Do_recomp_chkr = 0; # don't use the recompilatio checker unless asked
496 $Do_cc = -1; # a MAGIC indeterminate value; will be set to 1 or 0.
499 $Keep_hc_file_too = 0;
500 $Keep_s_file_too = 0;
501 $UseGhcInternals = 0; # if 1, may use GHC* modules
503 $DoAsmMangling = 1; # on by default, off by -fno-asm-mangling
505 $Dump_parser_output = 0;
507 $Dump_asm_splitting_info = 0;
508 $NoImplicitPrelude = 0;
509 # 1 => don't tell the linker to hoist in PrelMain.Main, as an
510 # external main is provided instead.
513 } # end of initDriverGlobals (Sigh)
515 # we split the argv passed to the driver into three:
520 # and files to be linked...
526 # cmd line options prefixing the unit we're compiling
531 We inject consistency-checking information into \tr{.hc} files (both
532 when created by the Haskell compiler and when compiled by the C
533 compiler), so that we can check that an executable is made from
534 consistently-built pieces. (The check is normally done just after
535 linking.) The checking is done by introducing/munging
536 \tr{what(1)}-style strings. Anyway, here are the relevant global
537 variables and their defaults:
539 $LinkChk = 0; # set to 0 if the link check should *not* be done
541 # major & minor version numbers; major numbers must always agree;
542 # minor disagreements yield a warning.
543 $HsC_major_version = $HscMajorVersion;
544 $HsC_minor_version = $HscMinorVersion;
545 $Cc_major_version = $CcMajorVersion;
546 $Cc_minor_version = $CcMinorVersion;
548 # options: these must always agree
549 $HsC_consist_options = ''; # we record, in this order:
550 # Build tag; debugging?
551 $Cc_consist_options = ''; # we record, in this order:
552 # Build tag; debugging?
555 %************************************************************************
557 \section[Driver-parse-argv]{Munge the command-line options}
559 %************************************************************************
561 Now slurp through the arguments.
564 &initDriverGlobals();
565 &splitCmdLine(@ARGV);
566 # Run through the cmd-line first time.
567 &processArgs(@Cmd_opts);
569 # Check to see if driver is only in the business
570 # to generate dependencies
571 if ( $Status == 0 && $Only_generate_deps ) {
573 push (@MkDependHS_flags, "-o$Osuffix") if $Osuffix;
574 push (@MkDependHS_flags, "-s$BuildTag") if $BuildTag;
575 # They're not (currently) needed, but we need to quote any -#include options
576 foreach (@Cmd_opts) {
577 s/-#include.*$/'$&'/g;
579 local($to_do) = "$MkDependHS @MkDependHS_flags @HsSourceCppOpts -- @Cmd_opts -- @Input_file" ;
580 &run_something($to_do, 'Haskell dependencies');
584 # if there are several input files,
585 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
586 # (except if linking, of course)
588 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
589 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
590 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
591 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
592 print STDERR "\tPerhaps the -odir option will do what you want.\n";
597 # check for various pathological -o and -odir combinations...
598 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
599 if ($Specific_output_file eq '-') {
600 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
602 } else { # amalgamate...
603 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
604 # ToDo: check we haven't got a junk name now...
605 $Specific_output_dir = ''; # reset
609 # crash and burn if there were errors
611 print STDERR $ShortUsage;
616 %************************************************************************
618 \section[Driver-post-argv-mangling]{Setup after reading options}
620 %************************************************************************
622 %************************************************************************
624 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
626 %************************************************************************
628 We come now to the default ``wads of options'' that are turned on by
629 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
630 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
633 The user can also specify his/her own list of options in a file; in
634 that case, the work is already done (see stuff about @minusO3@,
637 GHC allows very precise control of what happens during a compilation.
638 Core-to-Core and STG-to-STG passes can be run in any order, as many
639 times as you like. Individual transformations can be turned on or
642 Sadly, however, there are some interdependencies \& Things You Must
643 Not Do. Here is the list.
647 \item[\tr{-fspecialise}:]
648 The specialiser must have dependency-analysed input; but if you run
649 the simplifier to do this, you must not let it toss away unused
650 bindings! (The typechecker conveys some specialisation info via
651 ``unused'' bindings...)
653 \item[\tr{-ffloat-inwards}:]
654 Floating inwards should be done before strictness analysis, because
655 the latter will give better results.
657 \item[\tr{-fstatic-args}:]
658 The static-arguments-transformation pass {\em must} have the
659 simplifier run right after it.
661 \item[\tr{-fcalc-inlinings[12]}:]
662 Not required, but there may be slight gains by re-simplifying after
663 this is done. (You could then \tr{-fcalc-inlinings} again, just for
666 \item[\tr{-ffull-laziness}:]
667 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
668 that's run. (Um, well, howzabout the simplifier just once more...)
673 \item[\tr{-fupdate-analysis}:]
674 It really really wants to be the last STG-to-STG pass that is run.
679 sub setupOptimiseFlags {
685 '-ffloat-lets-exposing-whnf',
686 '-ffloat-primops-ok',
689 # '-fdo-lambda-eta-expansion', # too complicated
691 # '-flet-to-case', # no strictness analysis, so...
692 $Oopt_PedanticBottoms,
693 # $Oopt_MonadEtaExpansion, # no thanks
695 # These two work fine, if you really want no simplification at all,
696 # for bizarre test reasons. But you get really terrible code if you use them,
697 # for example: let x = e in x
698 # with dozens of redundant thunks etc. So I'm leaving them out.
700 # '-fsimpl-uf-use-threshold0',
701 # '-fessential-unfoldings-only',
704 # The presence of -fclone-binds is *temporary* to work around
705 # the fact that the desugarer in 3.0{2.3} does generate
706 # bindings with identical ids, and the type checker doesn't perform
707 # properly cloned type substitutions. Instead, we make sure that all
708 # binders are cloned first time through the simplifier.
710 # Will be properly fixed in the `new compiler` I hear, at which point
711 # the cloning can be turned off here.
716 $Oopt_MaxSimplifierIterations,
717 $Oopt_ShowSimplifierProgress,
720 # '-ffull-laziness', # removed 95/04 WDP following Andr\'e's lead
722 $Oopt_FinalStgProfilingMassage
725 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
727 '-fdo-eta-reduction',
729 # initial simplify: mk specialiser happy: minimum effort please
733 '-fkeep-spec-pragma-ids', # required before specialisation
735 # I don't understand why we want -fessential-unfoldings-only here
736 # If we have it, the following nasty thing happens:
740 # where "*" means exported.
741 # In the essential-unfoldings pass we still substitute f for g
742 # but we don't substitute E for f first. So we get
746 # The g=f will get reverse-substituted later, but it's untidy. --SLPJ
748 # SDM: Here's why it's necessary.
750 # If we unfold in the first pass before the specialiser is run
751 # we miss opportunities for specialisation because eg. wrappers
752 # have been inlined for specialisable functions.
754 # This shows up in PrelArr.lhs - the specialised instance for newArray
755 # calls the generic rangeSize, because rangeSize is strict and is
756 # replaced by its wrapper by the simplifier.
758 '-fessential-unfoldings-only',
759 '-fsimpl-uf-use-threshold0',
761 # See remark re: cloning in defn of minusnotO
765 '-fmax-simplifier-iterations1',
766 $Oopt_PedanticBottoms,
769 ($Oopt_DoSpecialise) ? (
773 '-fsimplify', # need dependency anal after specialiser ...
774 '[', # need tossing before calc-inlinings ...
776 '-ffloat-lets-exposing-whnf',
777 '-ffloat-primops-ok',
781 # '-fdo-eta-reduction',
782 '-fdo-lambda-eta-expansion',
784 $Oopt_PedanticBottoms,
785 $Oopt_MonadEtaExpansion,
786 $Oopt_MaxSimplifierIterations,
787 $Oopt_ShowSimplifierProgress,
789 # The presence of -fclone-binds is *crucial* here as
790 # -ffull-laziness (which we're about to do next) floats
791 # bindings outwards, so we better make sure that this
792 # doesn't result in the floating out of bindings
793 # with identical uniques, i.e., -ffull-laziness needs
794 # to be preceeded by a simplifier pass with -fclone-binds
799 # ($Oopt_FoldrBuildWW) ? (
800 # '-ffoldr-build-ww-anal',
801 # '-ffoldr-build-worker-wrapper',
805 # '-ffloat-lets-exposing-whnf',
806 # '-ffloat-primops-ok',
810 # '-fdo-eta-reduction',
811 # '-fdo-lambda-eta-expansion',
813 # $Oopt_PedanticBottoms,
814 # $Oopt_MonadEtaExpansion,
815 # $Oopt_MaxSimplifierIterations,
816 # $Oopt_ShowSimplifierProgress,
820 # this pass-ordering sequence was agreed by Simon and Andr\'e
821 # (WDP 94/07, 94/11).
824 ($Oopt_FoldrBuild) ? (
825 '-ffoldr-build-on', # desugar list comprehensions for foldr/build
829 '-fignore-inline-pragma', # **** NB!
830 '-fdo-foldr-build', # NB
832 '-ffloat-lets-exposing-whnf',
833 '-ffloat-primops-ok',
837 # '-fdo-eta-reduction',
838 '-fdo-lambda-eta-expansion', # After full laziness
840 $Oopt_PedanticBottoms,
841 $Oopt_MonadEtaExpansion,
842 $Oopt_MaxSimplifierIterations,
843 $Oopt_ShowSimplifierProgress,
852 '-ffloat-lets-exposing-whnf',
853 '-ffloat-primops-ok',
857 '-fdo-eta-reduction',
858 '-fdo-lambda-eta-expansion',
860 ($Oopt_FoldrBuildInline),
861 # you need to inline foldr and build
862 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
863 # but do reductions if you see them!
864 $Oopt_PedanticBottoms,
865 $Oopt_MonadEtaExpansion,
866 $Oopt_MaxSimplifierIterations,
867 $Oopt_ShowSimplifierProgress,
875 '-ffloat-lets-exposing-whnf',
876 '-ffloat-primops-ok',
880 # '-fdo-eta-reduction',
881 '-fdo-lambda-eta-expansion',
883 '-flet-to-case', # Aha! Only done after strictness analysis
884 $Oopt_PedanticBottoms,
885 $Oopt_MonadEtaExpansion,
886 $Oopt_MaxSimplifierIterations,
887 $Oopt_ShowSimplifierProgress,
892 # Case-liberation for -O2. This should be after
893 # strictness analysis and the simplification which follows it.
897 # : "-fliberate-case -fsimplify [ $Oopt_FB_Support -ffloat-lets-exposing-whnf -ffloat-primops-ok -fcase-of-case -fdo-case-elim -fcase-merge -fdo-eta-reduction -fdo-lambda-eta-expansion -freuse-con -flet-to-case $Oopt_PedanticBottoms $Oopt_MonadEtaExpansion $Oopt_MaxSimplifierIterations $Oopt_ShowSimplifierProgress ]" ),
899 # Final clean-up simplification:
904 '-ffloat-lets-exposing-whnf',
905 '-ffloat-primops-ok',
909 # '-fdo-eta-reduction',
910 '-fdo-lambda-eta-expansion',
913 '-fignore-inline-pragma', # **** NB!
914 $Oopt_FoldrBuildInline,
915 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
916 # but still do reductions if you see them!
917 $Oopt_PedanticBottoms,
918 $Oopt_MonadEtaExpansion,
919 $Oopt_MaxSimplifierIterations,
920 $Oopt_ShowSimplifierProgress,
925 #LATER: '-fcalc-inlinings2', -- pointless for 2.01
929 $Oopt_FinalStgProfilingMassage,
935 # SPECIAL FLAGS for -O2
937 '-fupdate-analysis', # virtually useless; relegated to -O2
944 Sort out what we're going to do about optimising. First, the @hsc@
945 flags and regular @cc@ flags to worry about:
947 if ( $OptLevel <= 0 ) {
949 # for this level, we tell the parser -fignore-interface-pragmas
950 push(@HsC_flags, '-fignore-interface-pragmas');
951 # and tell the compiler not to produce them
952 push(@HsC_flags, '-fomit-interface-pragmas');
954 &add_Hsc_flags( @HsC_minusNoO_flags );
955 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
957 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
959 &add_Hsc_flags( @HsC_minusO_flags );
960 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
961 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
962 # but it *is* useful in compiling the garbage collector.
964 } else { # -Ofile, then...
966 &add_Hsc_flags( @HsC_minusO3_flags );
967 push(@HsC_flags, $Oopt_FinalStgProfilingMassage) if $Oopt_FinalStgProfilingMassage;
969 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
972 } # setupOptimiseFlags
976 %************************************************************************
978 \subsection{Check for consistency, etc.}
980 %************************************************************************
982 Sort out @$BuildTag@, @$PROFing@, @$PARing@,
983 @$GRANing@, @$TICKYing@:
985 sub setupBuildFlags {
988 # PROFILING stuff after argv mangling:
990 # warn about any scc exprs found (in case scc used as identifier)
991 push(@HsP_flags, '-W');
993 # add -auto sccs even if not profiling !
994 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
997 push(@HsC_flags, $PROFauto) if $PROFauto;
998 push(@HsC_flags, $PROFcaf) if $PROFcaf;
999 #push(@HsC_flags, $PROFdict) if $PROFdict;
1001 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
1003 # Ignore user sccs when auto annotating, but warn when doing so.
1004 $PROFignore_scc = '-W' if $PROFauto;
1006 push(@HsP_flags, (($PROFignore_scc) ? $PROFignore_scc : '-S'));
1008 #if ( $BuildTag ne '' ) {
1009 # local($b) = $BuildDescr{$BuildTag};
1010 # if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
1011 # if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
1012 # if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
1014 # # ok to have a user-way profiling build
1015 # # eval the profiling opts ... but leave user-way BuildTag
1016 # if ($PROFing eq 'p') { &processArgs(split(' ', $SetupOpts{'_p'})); } # eval($EvaldSetupOpts{'_p'}); }
1018 if ( $PROFing eq 'p' ) {
1019 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
1020 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
1021 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
1024 } elsif ( $PARing eq 'p' ) {
1025 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
1026 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
1029 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
1030 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
1034 } elsif ( $GRANing eq 'g' ) {
1035 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
1038 } elsif ( $TICKYing eq 't' ) {
1044 After the sanity checks, add flags to the necessary parts of the driver pipeline:
1047 if ( $BuildTag ne '' ) { # something other than normal sequential...
1049 local($Tag) = "${BuildTag}";
1050 $Tag =~ s/_//; # move the underscore to the back
1052 $HscOut = '-C='; # must go via C
1053 &processArgs(split(' ', $SetupOpts{$BuildTag}));
1054 # eval($EvaldSetupOpts{$BuildTag});
1058 Decide what the consistency-checking options are in force for this run:
1061 $HsC_consist_options = "${BuildTag},${DEBUGging}";
1062 $Cc_consist_options = "${BuildTag},${DEBUGging}";
1065 # Funny place to put it, but why not.
1067 if ( $HiSuffix_prelude eq '' ) {
1068 local($Tag) = "${BuildTag}";
1070 $Tag = "${Tag}_" if $Tag ne '';
1071 $HiSuffix_prelude="${Tag}hi";
1076 %************************************************************************
1078 \subsection{Add on machine-specific C-compiler flags}
1080 %************************************************************************
1082 Shove on magical machine-specific options. We use \tr{unshift} to
1083 stick them on the {\em front} of the arrays, so that ``later''
1084 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
1086 Note: a few ``always apply'' flags were set at the very beginning.
1091 if ($TargetPlatform =~ /^alpha-/) {
1092 unshift(@CcBoth_flags, ('-static'));
1094 } elsif ($TargetPlatform =~ /^hppa/) {
1095 unshift(@CcBoth_flags, ('-static'));
1097 # We don't put in '-mlong-calls', because it's only
1098 # needed for very big modules (sigh), and we don't want
1099 # to hobble ourselves further on all the other modules
1102 # [Dated comment (gcc-2.6.x?), -mlong-calls is no longer
1103 # a supported gcc HPPA flag]
1104 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
1105 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
1106 # (very nice, but too bad the HP /usr/include files don't agree.)
1108 } elsif ($TargetPlatform =~ /^i386-/) {
1109 # -fno-defer-pop : basically the same game as for m68k
1111 # -fomit-frame-pointer : *must* in .hc files; because we're stealing
1112 # the fp (%ebp) for our register maps.
1114 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1115 unshift(@CcRegd_flags_hc, '-fomit-frame-pointer');
1116 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1118 } elsif ($TargetPlatform =~ /^m68k-/) {
1119 # -fno-defer-pop : for the .hc files, we want all the pushing/
1120 # popping of args to routines to be explicit; if we let things
1121 # be deferred 'til after an STGJUMP, imminent death is certain!
1123 # -fomit-frame-pointer : *don't*
1124 # It's better to have a6 completely tied up being a frame pointer
1125 # rather than let GCC pick random things to do with it.
1126 # (If we want to steal a6, then we would try to do things
1127 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1129 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1130 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1131 # maybe gives reg alloc a better time
1132 # also: -fno-defer-pop is not sufficiently well-behaved without it
1134 } elsif ($TargetPlatform =~ /^mips-/) {
1135 unshift(@CcBoth_flags, ('-static'));
1137 } elsif ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1138 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1139 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1140 } elsif ($TargetPlatform =~ /^sparc-/) {
1142 } # end of setupMachOpts
1145 %************************************************************************
1147 \subsection{Set up for warnings}
1149 %************************************************************************
1151 Several warnings are turned on by default. These are supposed to be
1152 the 'I'm pretty sure you've made a mistake here' kind of warnings.
1153 The rest are turned on by the -W and -Wall options, or individually
1154 via their -fwarn and -fno-warn flags.
1157 sub setupWarningFlags {
1158 &add_Hsc_flags( @StandardWarnings );
1162 Same unshifting magic, but for special linker flags.
1164 The configure script determines whether the object file symbol tables
1165 have a leading underscore, and sets @LeadingUnderscore@ accordingly.
1166 (The driver script `sees' the setting of the @LeadingUnderscore@
1167 by having the Makefile prepend it).
1171 local($uscore) = ( ${LeadingUnderscore} eq 'YES' ) ? '_' : '';
1174 (($Ld_main) ? ( '-u', "${uscore}Main_" . $Ld_main . '_closure' ) : ()));
1176 # things that are referenced by the RTS - make sure that we pull 'em in
1178 ( '-u', "${uscore}PrelBase_Izh_static_info"
1179 ,'-u', "${uscore}PrelBase_Czh_static_info"
1180 ,'-u', "${uscore}PrelBase_Fzh_static_info"
1181 ,'-u', "${uscore}PrelBase_Dzh_static_info"
1182 ,'-u', "${uscore}PrelAddr_Azh_static_info"
1183 ,'-u', "${uscore}PrelAddr_Wzh_static_info"
1184 ,'-u', "${uscore}PrelAddr_I64zh_static_info"
1185 ,'-u', "${uscore}PrelAddr_W64zh_static_info"
1186 ,'-u', "${uscore}PrelStable_StablePtr_static_info"
1187 ,'-u', "${uscore}PrelBase_Izh_con_info"
1188 ,'-u', "${uscore}PrelBase_Czh_con_info"
1189 ,'-u', "${uscore}PrelBase_Fzh_con_info"
1190 ,'-u', "${uscore}PrelBase_Dzh_con_info"
1191 ,'-u', "${uscore}PrelAddr_Azh_con_info"
1192 ,'-u', "${uscore}PrelAddr_Wzh_con_info"
1193 ,'-u', "${uscore}PrelAddr_I64zh_con_info"
1194 ,'-u', "${uscore}PrelAddr_W64zh_con_info"
1195 ,'-u', "${uscore}PrelStable_StablePtr_con_info"
1196 ,'-u', "${uscore}PrelBase_False_static_closure"
1197 ,'-u', "${uscore}PrelBase_True_static_closure"
1198 ,'-u', "${uscore}PrelPack_unpackCString_closure"
1200 if (!$NoHaskellMain) {
1201 unshift (@Ld_flags,'-u', "${uscore}PrelMain_mainIO_closure");
1203 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1204 # sometimes we have lots of toc entries...
1205 # unshift(@Ld_flags, ('-Xlinker -bbigtoc -Xlinker -bnoquiet'));
1206 unshift(@Ld_flags, ('-Xlinker -bbigtoc'));
1209 } # end of setupLinkOpts
1213 %************************************************************************
1215 \subsection{Set up include paths and system-library enslurpment}
1217 %************************************************************************
1219 Now that we know what garbage-collector, etc., are required, we can
1220 finalise our list of libraries to slurp through, and generally Get
1225 # default includes must be added AFTER option processing
1226 if ( ! $INSTALLING ) {
1227 push (@Include_dir, "$TopPwd/${CURRENT_DIR}/${GHC_INCLUDE_DIR}");
1229 push (@Include_dir, "$InstLibDirGhc/includes");
1230 push (@Include_dir, "$InstLibDirGhc/includes");
1232 } # end of setupIncPaths
1237 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1240 foreach $f (@SysLibrary) {
1241 next if $f =~ /_cbits/;
1242 $f .= $BuildTag if $f =~ /^-lHS/;
1245 # Push library HSrts, plus boring clib bit
1246 push(@SysLibrary, "-lHSrts${BuildTag}");
1249 # RTS compiled with cygwin32, uses the WinMM API
1250 # to implement the itimers, since cygwin.dll does not
1251 # support it. Only reqd. for `ways' that use itimers.
1253 push(@SysLibrary, '-lwinmm') if $TargetPlatform eq 'i386-unknown-cygwin32';
1255 # Push the pvm libraries
1256 if ($BuildTag eq '_mp') {
1257 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1258 push(@SysLibrary, "-L$pvmlib", '-lgpvm3', '-lpvm3');
1259 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1260 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1261 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1262 push(@SysLibrary, '-lsocket', '-lnsl');
1266 # Push the GNU multi-precision arith lib; and the math library
1268 # If this machine has GMP already installed, then we'll get the installed
1269 # lib here, because presumably the one in the tree won't have been built.
1271 if ($LibGmp eq 'not-installed') {
1272 push(@SysLibrary, "-lgmp");
1274 push(@SysLibrary, "-l$LibGmp");
1277 push(@SysLibrary, '-lm');
1280 %************************************************************************
1282 \subsection{Check that this system was built to do what we are asking}
1284 %************************************************************************
1286 Before continuing we check that the appropriate build is available.
1289 #die "$Pgm: no BuildAvail?? $BuildTag\n" if $BuildDescr{$BuildTag} eq '' ; # sanity
1291 if ( $BuildDescr{$BuildTag} eq '' ) {
1292 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1293 "' \"build\" is not available with your GHC setup.\n";
1294 print STDERR "(It was not configured for it at your site.)\n";
1295 print STDERR $ShortUsage;
1299 } # end of setupSyslibs
1303 %************************************************************************
1305 \subsection{Final miscellaneous setup bits before we start going}
1307 %************************************************************************
1309 Record largest specific heapsize, if any.
1311 sub setupHeapStackSize {
1312 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1313 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1314 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1315 push(@HsC_rts_flags, "-K$Specific_stk_size");
1319 If no input or link files seen, then we let 'em feed in stdin; this is
1320 mainly for debugging.
1324 if ($#Input_file < 0 && $#Link_file < 0) {
1325 @Input_file = ( '-' );
1327 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1328 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n" if -t;
1329 while (<STDIN>) { print INF $_; }
1330 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1335 Tell the world who we are, if they asked.
1337 print STDERR "${ProjectName}, version ${ProjectVersion}, patchlevel ${ProjectPatchLevel}\n"
1341 %************************************************************************
1343 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1345 %************************************************************************
1347 Process the input files; don't continue with linking if there are
1348 problems (global variable @$Status@ non-zero).
1350 foreach $ifile (@Input_file) {
1351 &ProcessInputFile($ifile);
1354 if ( $Status > 0 ) { # don't link if there were errors...
1355 print STDERR $ShortUsage;
1360 # append last minute flags linker and consistency flags
1367 Link if appropriate.
1370 local($libdirs) = '';
1372 # glue them together:
1373 push(@UserLibrary_dir, @SysLibrary_dir);
1375 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1377 # for a linker, use an explicitly given one, or the going C compiler ...
1378 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1380 if ( ($Specific_output_file eq '') &&
1381 ($TargetPlatform eq 'i386-unknown-cygwin32') ) {
1382 $Specific_output_file = 'main.exe';
1383 print STDERR "Output file not specified, defaulting to \"main.exe\"\n";
1386 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1387 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1389 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $TopClosureFile $libdirs @UserLibrary @SysLibrary";
1390 &run_something($to_do, 'Linker');
1392 # finally, check the consistency info in the binary
1393 local($executable) = $Files_to_tidy[0];
1394 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1397 # dynamically load consistency-chking code; then do it.
1398 require('ghc-consist.prl')
1399 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1401 &chk_consistency_info ( $executable );
1404 # if PVM parallel stuff, we do truly weird things.
1405 # Essentially: (1) move the executable over to where PVM expects
1406 # to find it. (2) create a script in place of the executable
1407 # which will cause the program to be run, via SysMan.
1408 if ( $PARing eq 'p' ) {
1409 local($pvm_executable) = $executable;
1410 local($pvm_executable_base);
1412 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1413 local($pwd) = `pwd`;
1415 $pwd =~ s/^\/tmp_mnt//;
1416 $pvm_executable = "$pwd/$pvm_executable";
1419 $pvm_executable =~ s|/|=|g; # make /s into =s
1420 $pvm_executable_base = $pvm_executable;
1422 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1423 . "/$pvm_executable";
1425 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1427 # OK, now create the magic script for "$executable"
1428 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1429 print EXEC <<EOSCRIPT1;
1430 eval 'exec perl -S \$0 \${1+"\$@"}'
1431 if \$running_under_some_shell;
1432 # =!=!=!=!=!=!=!=!=!=!=!
1433 # This script is automatically generated: DO NOT EDIT!!!
1434 # Generated by Glasgow Haskell, version ${ProjectVersion} ${ProjectPatchLevel}
1436 \$pvm_executable = '$pvm_executable';
1437 \$pvm_executable_base = '$pvm_executable_base';
1438 \$SysMan = '$SysMan';
1441 print EXEC <<\EOSCRIPT2;
1442 # first, some magical shortcuts to run "commands" on the binary
1444 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1446 system("$cmd $pvm_executable");
1450 # OK, really run it; process the args first
1451 $ENV{'PE'} = $pvm_executable_base;
1453 $nprocessors = 2; # the default
1457 # ToDo: handle --RTS
1458 args: while ($a = shift(@ARGV)) {
1459 if ( $a eq '+RTS' ) {
1461 } elsif ( $a eq '-RTS' ) {
1464 if ( $a eq '-d' && $in_RTS_args ) {
1466 } elsif ( $a =~ /^-N(\d+)/ && $in_RTS_args ) {
1469 push(@nonPVM_args, $a);
1473 local($return_val) = 0;
1474 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
1476 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
1479 close(EXEC) || die "Failed closing $executable\n";
1480 chmod 0755, $executable;
1484 # that... that's all, folks!
1486 exit $Status; # will still be 0 if all went well
1489 %************************************************************************
1491 \section[Driver-do-one-file]{How to process a single input file}
1493 %************************************************************************
1496 sub ProcessInputFile {
1497 local($ifile) = @_; # input file name
1498 local($ifile_root); # root of or basename of input file
1499 local($ofile_target); # ultimate output file we hope to produce
1500 # from input file (need to know for recomp
1501 # checking purposes)
1502 local($hifile_target);# ditto (but .hi file)
1503 local($ofile_c_stub_target);
1504 local($ofile_h_stub_target);
1507 Handle the weirdity of input from stdin.
1509 if ($ifile ne '-') {
1510 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1511 $ofile_target = # may be reset later...
1512 ($Specific_output_file ne '' && ! $Do_lnkr)
1513 ? $Specific_output_file
1514 : &odir_ify($ifile_root, 'o');
1515 $hifile_target= ($Specific_hi_file ne '')
1517 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1518 # NB: may change if $ifile_root isn't module name (??)
1519 ($ofile_c_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.c/;
1520 ($ofile_h_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.h/;
1522 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1523 $ifile_root = '_stdin';
1524 $ofile_target = '_stdout'; # gratuitous?
1525 $hifile_target= '_stdout'; # ditto?
1529 We need to decide what phases of the compilation system we will run
1530 over this file. The defaults are the ones established when processing
1531 flags. (That established what the last phase run for all files is.)
1533 We do the pre-recompilation-checker phases here; the rest later.
1537 Look at the suffix and decide what initial phases of compilation may
1538 be dropped off for this file. Also the rather boring business of
1539 which files are coming-in/going-out.
1541 Again, we'll do the post-recompilation-checker parts of this later.
1543 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1544 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1547 # names of the files to stuff between phases
1548 # defaults are temporaries
1549 local($in_lit2pgm) = $ifile;
1550 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1551 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1552 local($hsc_hi) = "$Tmp_prefix.hi";
1553 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1554 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1555 local($as_out) = $ofile_target;
1557 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
1559 # OK, let's strip off some literate junk..
1561 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
1563 $lit2pgm_hscpp = $ifile;
1569 # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas
1570 &check_for_source_options($lit2pgm_hscpp,$ifile);
1572 # Options found in the source file take a back seat, i.e., we scan
1573 # them first. Only process the command line again if source file
1574 # contained anything of interest *or* there's more than one
1575 # input file (we have to reset the options).
1577 if ( $#Input_file >= 0 || $#File_options >= 0) {
1578 #@File_options = (@File_options, @Cmd_opts);
1580 # Now process the command line
1581 &initDriverGlobals();
1582 &processArgs((@File_options,@Cmd_opts));
1583 print STDERR "\nEffective command line: " .
1584 join(' ',(@File_options,@Cmd_opts)) . "\n" if $Verbose;
1587 # Having got the effective command line scanned, set up
1588 # the various options in prep for some real work.
1590 # check the sanity of the BuildTag we're about to use,
1591 # and if needs be, add some more flags and setup to
1592 # the different phases.
1595 &setupOptimiseFlags();
1598 &setupWarningFlags();
1599 &setupHeapStackSize();
1602 # These two variables need to be set after the
1603 # command-line has been processed and the build options
1604 # have be seen set up. This is because command-line options
1605 # can control whether to compile vias C or not.
1607 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1609 : ( ($HscOut eq '-C=') ? 1 : 0 );
1610 local($do_as) = $Do_as;
1611 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1612 local($hsc_out_c_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.c" : "";
1613 local($hsc_out_h_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.h" : "";
1615 if ($Only_preprocess_hc) { # stop after having run $Cc -E
1618 if ($Only_preprocess_C) { # stop after having run $hscpp
1619 $do_hsc=0; $do_cc = 0; $do_as=0;
1620 } elsif ($ifile =~ /.lhs$/ || $ifile =~ /.hs$/ ) {
1622 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
1623 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1625 $hsc_out_c_stub = '';
1626 $hsc_out_h_stub = '';
1627 } elsif ($ifile =~ /\.c$/) {
1628 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1629 $hsc_out = $ifile; $is_hc_file = 0;
1630 $hsc_out_c_stub = '';
1631 $hsc_out_h_stub = '';
1632 } elsif ($ifile =~ /\.[sS]$/) {
1633 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
1635 } else { # don't know what it is, but nothing to do herein...
1636 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
1639 # hack to avoid running hscpp
1640 $HsCpp = $Cat if ! $Cpp_flag_set;
1642 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) if $do_hscpp;
1646 We now think about whether to run hsc/cc or not (when hsc produces .s
1647 stuff, it effectively takes the place of both phases).
1648 To get the output file name right: for each phase that we are {\em
1649 not} going to run, set its input (i.e., the output of its preceding
1650 phase) to @"$ifile_root.<suffix>"@.
1653 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
1656 # Warning issued if -keep-hc-file-too is used without
1657 # -fvia-C (or the equivalent)
1659 if ( $HscOut ne '-C=' && $Keep_hc_file_too ) {
1660 print STDERR "$Pgm: warning: Native code generator to be used, -keep-hc-file-too will be ignored\n";
1663 if (! $do_cc && ! $do_as) { # stopping after hsc
1664 $hsc_out = ($Specific_output_file ne '')
1665 ? $Specific_output_file
1666 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
1668 $ofile_target = $hsc_out; # reset
1671 if (! $do_as) { # stopping after gcc (or hsc)
1672 $cc_as = ($Specific_output_file ne '')
1673 ? $Specific_output_file
1674 : &odir_ify($ifile_root, ( $Only_preprocess_hc ) ? 'i' : 's');
1676 $ofile_target = $cc_as; # reset
1682 Now the Haskell compiler, C compiler, and assembler
1686 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
1687 $ofile_target, $hifile_target,
1688 $going_interactive);
1691 if (-f $hsc_out_h_stub) {
1692 &run_something("cp $hsc_out_h_stub $ofile_h_stub_target", 'Copy foreign export header file');
1695 if (-f $hsc_out_c_stub) {
1696 &run_something("cp $hsc_out_c_stub $ofile_c_stub_target", 'Copy foreign export C stubs');
1697 local ($hsc_out_s_stub);
1698 local ($hsc_out_o_stub);
1699 ($ofile_s_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$/\.s/;
1700 ($ofile_o_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$/\.o/;
1701 &runGcc (0, $ofile_c_stub_target, $ofile_s_stub_target);
1702 &runAs ($ofile_o_stub_target, $ofile_s_stub_target);
1704 # Bring the C stub protos into scope when compiling the .hc file.
1706 push (@CcInjects, "#include \"${hsc_out_h_stub}\"\n");
1707 # Hack - ensure that the stub .h file is included in the OPTIONS section
1708 # if the .hc file is saved.
1709 push (@File_options, "-#include \"${ofile_h_stub_target}\"\n");
1714 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
1715 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root) if ! $Only_preprocess_hc;
1718 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
1720 # save a copy of the .s file..
1721 &saveIntermediate($ifile_root , "s" , $cc_as) if ($do_as && $Keep_s_file_too);
1722 &runAs($as_out, $ifile_root) if $do_as;
1725 Finally, decide what to queue up for linker input.
1727 # tentatively assume we will eventually produce linker input:
1728 push(@Link_file, &odir_ify($ifile_root, 'o'));
1730 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
1732 if ( $ifile !~ /\.(lhs|hs|hc|c|s|a|S)$/ && $ifile !~ /_hc$/ ) {
1733 # There's sometimes confusion regarding .hi files; users
1734 # supplying them on the command line.
1735 if ( $ifile =~ /\.hi$/ ) {
1736 print STDERR "$Pgm: warning: found `$ifile' on command line; interface files should not be supplied here - ignoring it.\n";
1738 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n";
1740 # oops; we tentatively pushed the wrong thing; fix & do the right thing
1741 pop(@Link_file); push(@Link_file, $ifile);
1745 } # end of ProcessInputFile
1748 %************************************************************************
1750 \section[Driver-run-phases]{Routines to run the various phases}
1752 %************************************************************************
1756 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
1760 # Only add #line pragma if we're going to need it.
1761 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && " if ($Cpp_flag_set);
1762 $to_do .= "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
1764 push(@Files_to_tidy, $lit2pgm_hscpp );
1766 &run_something($to_do, 'literate pre-processor');
1772 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
1776 # Strictly speaking, echoing of the following line pragma is only required
1777 # on non-delit'ed input, as we've already added it during de-lit. However,
1778 # hscpp will then add a {-# LINE 1 "$lit2pgm_hsc" -} to the top of the file,
1779 # which is not very informative (but harmless). Hence, we uniformly have
1780 # {-# LINE 1 "$in_lit2pgm" #-} as the first line to all cpp'ed hsc input.
1782 $to_do = "echo '{-# LINE 1 \"$in_lit2pgm\" -}' > $hscpp_hsc && ";
1784 if ($HsCpp eq $Cat) {
1785 $to_do .= "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
1786 push(@Files_to_tidy, $hscpp_hsc );
1787 &run_something($to_do, 'Ineffective C pre-processor');
1789 local($includes) = '-I' . join(' -I',@Include_dir);
1790 $to_do .= "$HsCpp $Verbose @HsCpp_flags @HsSourceCppOpts $includes $lit2pgm_hscpp >> $hscpp_hsc";
1791 push(@Files_to_tidy, $hscpp_hsc );
1792 &run_something($to_do, 'Haskellised C pre-processor');
1795 if ( $Only_preprocess_C ) {
1796 $to_do = "$Cat $hscpp_hsc";
1797 &run_something($to_do, '');
1805 sub runHscAndProcessInterfaces {
1806 local($ifile, $hscpp_hsc, $ifile_root,
1807 $ofile_target, $hifile_target,
1808 $going_interactive) = @_;
1810 # $ifile is the original input file
1811 # $hscpp_hsc post-unlit, post-cpp, etc., input file
1812 # $ifile_root input filename minus suffix
1813 # $ofile_target the output file that we ultimately hope to produce
1814 # $hifile_target the .hi file ... (ditto)
1816 local($source_unchanged) = 1;
1818 # Check if the source file is up to date relative to the target; in
1819 # that case we say "source is unchanged" and let the compiler bail out
1820 # early if the import usage information allows it.
1822 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
1823 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
1825 # The informational messages below are now conditional on -v being set -- SOF
1826 if ( $ofile_target ne "_stdin.s" && ! -f $ofile_target ) {
1827 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n" if $Verbose;
1828 $source_unchanged = 0;
1831 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
1832 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
1834 if ( $hifile_target ne "_stdout" && ! -f $hifile_target ) {
1835 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n" if $Verbose;
1836 $source_unchanged = 0;
1839 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
1840 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
1842 if ( $ofile_target ne "_stdin.s" && $i_mtime > $o_mtime) {
1843 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n" if $Verbose;
1844 $source_unchanged = 0;
1847 # Tell the compiler which version we're using
1848 push(@HsC_flags, "-fhi-version=${ProjectVersionInt}");
1850 # So if source_unchanged is still "1", we pass on the good news to the compiler
1851 # The -recomp flag can disable this, forcing recompilation
1852 if ($Do_recomp_chkr && $source_unchanged) {
1853 push(@HsC_flags, '-fsource-unchanged');
1858 &runHsc($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive);
1860 # See if it bailed out early, saying nothing needed doing.
1861 # We work this out by seeing if it created an output .hi file
1863 if ( ! -f $hsc_hi && $ProduceHi !~ /-nohifile=/ ) {
1864 # Doesn't exist, so we bailed out early.
1865 # Tell the C compiler and assembler not to run
1866 $do_cc = 0; $do_as = 0;
1868 # Update dependency info, touch both object file and
1869 # interface file, so that the following invariant is
1872 # a dependent module's interface file should after recompilation
1873 # checking be newer than the interface files of its imports.
1875 # That is, if module A's interface file changes, then module B
1876 # (which import from A) needs to be checked.
1877 # If A's change does not affect B, which causes the compiler to bail
1878 # out early, we still need to touch the interface file of B. The reason
1879 # for this is that B may export A's interface.
1881 &run_something("touch $ofile_target",
1882 "Touch $ofile_target, to propagate dependencies") if $HscOut ne '-N=';
1883 &run_something("touch $hifile_target",
1884 "Touch $hifile_target, to propagate dependencies") if $ProduceHi =~ /-nohifile=/ ;
1888 # Didn't bail out early (new .hi file) so we thunder on
1890 # If non-interactive, heave in the consistency info at the end
1891 # NB: pretty hackish (depends on how $output is set)
1892 if ( ! $going_interactive ) {
1893 if ( $HscOut eq '-C=' ) {
1894 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
1896 } elsif ( $HscOut eq '-S=' ) {
1897 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
1898 $consist =~ s/,/./g;
1899 $consist =~ s/\//./g;
1900 $consist =~ s/-/_/g;
1901 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
1902 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
1904 &run_something($to_do, 'Pin on Haskell consistency info');
1908 # Interface-handling is important enough to live off by itself
1909 if ( $ProduceHi !~ /-nohifile=/ ) { # If we've produced one, process it.
1910 require('ghc-iface.prl') || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
1911 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
1913 # if we're going to split up object files,
1914 # we inject split markers into the .hc file now
1915 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
1916 &inject_split_markers ( $hsc_out );
1919 # save a copy of the .hc file, even if we are carrying on...
1920 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
1921 &saveIntermediate($ifile_root , "hc" , $hsc_out);
1931 local($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive) = @_;
1933 # prepend comma to HsP flags (so hsc can tell them apart...)
1934 foreach $a ( @HsP_flags ) { $a = ",$a" unless $a =~ /^,/; }
1936 &makeHiMap() unless $HiMapDone;
1937 push(@HsC_flags, "-himap=$HiIncludeString");
1939 # here, we may produce .hc/.s and/or .hi files
1940 local($output) = '';
1941 #@Files_to_tidy = ();
1943 if ( $going_interactive ) {
1944 # don't need .hi unless we're going to show it on stdout:
1945 $ProduceHi = '-nohifile=' if ! $HiOnStdout;
1946 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
1949 # set up for producing output/.hi; note that flag twiddling
1950 # may mean that nothing will actually be produced:
1951 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out -F=$hsc_out_c_stub -FH=$hsc_out_h_stub";
1952 push(@Files_to_tidy, $hsc_hi, $hsc_out, $hsc_out_c_stub, $hsc_out_h_stub );
1954 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
1955 if ( $CollectingGCstats ) {
1956 push(@HsC_rts_flags, "-S$ifile_root.stat");
1957 push(@Files_to_tidy, "$ifile_root.stat");
1960 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
1961 # emit nofibbish time/bytes-alloc stats to stderr;
1962 # see later .stat file post-processing
1963 print STDERR "warning: both -Rgc-stats and -Rghc-timing used, -Rghc-timing wins." if $CollectingGCstats;
1964 push(@HsC_rts_flags, "-s$Tmp_prefix.stat");
1965 push(@Files_to_tidy, "$Tmp_prefix.stat");
1969 if ($Specific_dump_file ne '') {
1970 $dump = "2>> $Specific_dump_file";
1971 $Using_dump_file = 1;
1975 # Win32 only: If the command processor used by system()
1976 # exec()s the application as an ordinary Win32 executable,
1977 # we're in trouble here, since the command line is likely
1978 # to be > 255 chars long. To work around this situation,
1979 # $HsC also understands `at-files', i.e., `@file' on the
1980 # command line will cause $HsC to add the contents of `file'
1981 # to the command line.
1983 # [ Note: support for `at-files' is not compiled in by default ]
1984 $cmd_line_opts_via_at_file=0;
1985 if ($cmd_line_opts_via_at_file) {
1987 local($to_do_opts) = "$Tmp_prefix.opts";
1988 open(OPTS, "> $Tmp_prefix.opts") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.opts\n");
1989 print OPTS "$dump @HsC_flags $CoreLint $StgLint $Verbose";
1991 $to_do = "$HsC @HsP_flags ,$hscpp_hsc \@$Tmp_prefix.opts $output +RTS @HsC_rts_flags";
1995 $to_do = "$HsC @HsP_flags ,$hscpp_hsc $dump @HsC_flags $CoreLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
1997 &run_something($to_do, 'Haskell compiler');
1999 # finish business w/ nofibbish time/bytes-alloc stats
2000 &process_ghc_timings() if $CollectGhcTimings;
2004 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
2005 of (module-name, pathname) pairs, one per line, separated by a space.
2008 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
2012 # collect in %HiMap; write later; also used elsewhere in driver
2014 local($mod, $path, $d, $e);
2016 # reset the global variables:
2018 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
2020 foreach $d ( @Import_dir ) {
2021 if ($HiIncludeString) {
2022 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix}";
2024 $HiIncludeString = "$d%.${HiSuffix}";
2029 foreach $d ( @SysImport_dir ) {
2030 if ($HiIncludeString) {
2031 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix_prelude}";
2033 $HiIncludeString = "${d}%.${HiSuffix_prelude}";
2042 %************************************************************************
2044 \section[Driver-misc-utils]{Miscellaneous utilities}
2046 %************************************************************************
2048 %************************************************************************
2050 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
2052 %************************************************************************
2056 local($ofile,$def_suffix) = @_;
2058 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
2062 local($orig_file, $def_suffix) = @_;
2063 if ($Specific_output_dir eq '') { # do nothing
2064 &osuf_ify($orig_file, $def_suffix);
2066 local ($orig_file_only);
2067 ($orig_file_only = $orig_file) =~ s|.*/||;
2068 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
2075 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
2077 local($includes) = '-I' . join(' -I', @Include_dir);
2080 local($c_flags) = "@CcBoth_flags";
2081 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2083 $c_flags .= "-mno-cygwin" if ( $TargetPlatform =~ /-mingw32$/ );
2085 # "input" files to use that are not in some weird directory;
2086 # to help C compilers grok .hc files [ToDo: de-hackify]
2087 local($cc_help) = "ghc$$.c";
2088 local($cc_help_s) = "ghc$$.s";
2091 $s_output = (($is_hc_file && $DoAsmMangling) || $TargetPlatform =~ /^(powerpc|rs6000|hppa)/) ? $cc_as_o : $cc_as;
2092 $c_flags .= " @CcRegd_flags";
2093 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2095 # C compiler won't like the .hc extension. So we create
2096 # a tmp .c file which #include's the needful.
2097 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2098 if ( $is_hc_file ) {
2102 # user may have asked for #includes to be injected...
2103 print TMP @CcInjects if $#CcInjects >= 0;
2105 # Straight .c files may want to know that they're being used
2106 # with a particular version of GHC, so we define __GLASGOW_HASKELL__ for their benefit.
2107 print TMP "#define __GLASGOW_HASKELL__ ${ProjectVersionInt}\n";
2109 # heave in the consistency info
2110 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2112 print TMP "#include \"$hsc_out\"\n";
2113 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2115 # Don't redirect stderr into intermediate file if slamming output onto stdout (e.g., with -E)
2116 local($fuse_stderr) = "2>&1" if ! $Only_preprocess_hc;
2117 local($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 )";
2119 if ( $Only_preprocess_hc ) { # HACK ALERT!
2120 $to_do =~ s/ -S\b//g;
2122 push(@Files_to_tidy, $cc_help, $cc_help_s, $s_output );
2123 $PostprocessCcOutput = 1 if ! $Only_preprocess_hc; # hack, dear hack...
2124 &run_something($to_do, 'C compiler');
2125 $PostprocessCcOutput = 0;
2126 if ( $Only_preprocess_hc ) {
2127 system("$Cat $Tmp_prefix.ccout");
2129 unlink($cc_help, $cc_help_s);
2135 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2137 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2139 if ($is_hc_file && $DoAsmMangling) {
2140 # dynamically load assembler-fiddling code, which we are about to use:
2141 require('ghc-asm.prl')
2142 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2143 # post-process the assembler [.hc files only]
2144 &mangle_asm($cc_as_o, $cc_as);
2146 } elsif ($TargetPlatform =~ /^hppa/) {
2147 # minor mangling of non-threaded files for hp-pa only
2148 require('ghc-asm.prl')
2149 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2150 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2152 } elsif ($TargetPlatform =~ /^powerpc|^rs6000/) {
2153 # minor mangling of non-threaded files for powerpcs and rs6000s
2154 require('ghc-asm.prl')
2155 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-powerpc.prl!\n");
2156 &mini_mangle_asm_powerpc($cc_as_o, $cc_as);
2159 # save a copy of the .s file, even if we are carrying on...
2160 #if ($do_as && $Keep_s_file_too) {
2161 # &saveIntermediate($ifile_root , "s" , $cc_as);
2168 local($as_out, $ifile_root) = @_;
2170 local($asmblr) = ( $As ) ? $As : $CcRegd;
2172 # need to add the -I flags in case the file is going through cpp (.S files)
2173 local($includes) = '-I' . join(' -I', @Include_dir);
2175 if ( ! $SplitObjFiles ) {
2176 local($to_do) = "$asmblr -o $as_out -c @As_flags $includes $cc_as";
2177 push(@Files_to_tidy, $as_out );
2178 &run_something($to_do, 'Unix assembler');
2180 } else { # more complicated split-ification...
2182 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2184 # If -odir is used, great, just pin it in front of the
2185 # generated split file names. If it hasn't been set, we
2186 # snatch it from the ifile_root.
2190 if ( $Specific_output_dir eq '' ) {
2191 $Specific_output_dir = ${ifile_root};
2194 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2195 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2196 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2197 push(@Files_to_tidy, $split_out );
2199 &run_something($to_do, 'Unix assembler');
2205 %************************************************************************
2207 \subsection[Driver-run-something]{@run_something@: Run a phase}
2209 %************************************************************************
2213 local($str_to_do, $tidy_name) = @_;
2215 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2216 print STDERR "$str_to_do\n" if $Verbose;
2218 if ($Using_dump_file) {
2219 open(DUMP, ">> $Specific_dump_file")
2220 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2221 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2223 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2226 local($return_val) = 0;
2228 if ( length($str_to_do) > 4000) {
2229 # 4000 - on the random side, just like the *real* ARG_MAX
2232 # With some shells, command lines of this length may
2233 # very well cause trouble. To safeguard against this, we squirrel the
2234 # command into a file and exec that.
2235 local ($sh) = $ENV{'REAL_SHELL'};
2236 print STDERR "Backup plan A: saving cmd line in ${Tmp_prefix}.sh and executing that with $sh\n" if $Verbose;
2237 open (TEMP, "> ${Tmp_prefix}.sh") ||
2238 &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.sh'\n");
2239 print TEMP "$Time $str_to_do\n";
2241 &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.sh'\n");
2242 system("$sh $Tmp_prefix.sh");
2245 unlink "${Tmp_prefix}.sh";
2247 system("$Time $str_to_do");
2251 if ( $PostprocessCcOutput ) { # hack, continued
2252 open(CCOUT, "< $Tmp_prefix.ccout")
2253 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2255 next if /call-clobbered/;
2256 next if /control reaches end/;
2257 next if /from .*Stg\.h:/;
2258 next if /from ghc\d+.c:\d+:/;
2259 next if /: At top level:$/;
2260 next if /: In function \`.*\':$/;
2261 next if /\`ghc_cc_ID\' defined but not used/;
2264 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2267 if ($return_val != 0) {
2268 if ($Using_dump_file) {
2269 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2271 &tidy_up_and_die($return_val, '');
2273 $Using_dump_file = 0;
2277 %************************************************************************
2279 \subsection[Driver-ghc-timing]{Emit nofibbish GHC timings}
2281 %************************************************************************
2283 NB: nearly the same as in @runstdtest@ script.
2286 sub process_ghc_timings {
2287 local($StatsFile) = "$Tmp_prefix.stat";
2288 local($SysSpecificTiming) = 'ghc';
2290 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2291 local($max_live) = 0;
2292 local($tot_live) = 0; # for calculating residency stuff
2293 local($tot_samples) = 0;
2296 if (! /Gen:\s+0/ && ! /Minor/ && /^\s*\d+\s+\d+\s+(\d+)\s+\d+\.\d+/ ) {
2297 $max_live = $1 if $max_live < $1;
2301 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2303 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2304 $MaxResidency = $1; $ResidencySamples = $2;
2307 $GCs = $1 if /^\s*([0-9,]+) (collections? in generation 0|garbage collections? performed)/;
2309 if ( /^\s+([0-9]+)\s+Mb total memory/ ) {
2313 # The presence of -? in the following pattern is only there to
2314 # accommodate 0.29 && <= 2.05 RTS'
2315 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*-?(\d+\.\d\d)s elapsed\)/ ) {
2316 $InitTime = $1; $InitElapsed = $2;
2317 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2318 $MutTime = $1; $MutElapsed = $2;
2319 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2320 $GcTime = $1; $GcElapsed = $2;
2323 close(STATS) || die "Failed when closing $StatsFile\n";
2324 if ( $tot_samples > 0 ) {
2325 $ResidencySamples = $tot_samples;
2326 $MaxResidency = $max_live;
2327 $AvgResidency = int ($tot_live / $tot_samples) ;
2330 # warn about what we didn't find
2331 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2332 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2333 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2334 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2335 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2336 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2337 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2338 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2340 # things we didn't necessarily expect to find
2341 $MaxResidency = 0 unless defined($MaxResidency);
2342 $AvgResidency = 0 unless defined($AvgResidency);
2343 $ResidencySamples = 0 unless defined($ResidencySamples);
2346 $BytesAlloc =~ s/,//g;
2347 $MaxResidency =~ s/,//g;
2349 $InitTime =~ s/,//g;
2350 $InitElapsed =~ s/,//g;
2352 $MutElapsed =~ s/,//g;
2354 $GcElapsed =~ s/,//g;
2356 # print out what we found
2357 print STDERR "<<$SysSpecificTiming: ",
2358 "$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)",
2359 " :$SysSpecificTiming>>\n";
2366 %************************************************************************
2368 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2370 %************************************************************************
2374 local($to_do) = "\n$Rm $Tmp_prefix*";
2375 if ( $Tmp_prefix !~ /^\s*$/ ) {
2376 print STDERR "$to_do\n" if $Verbose;
2381 sub tidy_up_and_die {
2382 local($return_val, $msg) = @_;
2384 # delete any files to tidy
2385 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2386 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2390 exit (($return_val == 0) ? 0 : 1);
2394 %************************************************************************
2396 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2398 %************************************************************************
2400 Some command-line arguments take an argument, e.g.,
2401 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2402 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2403 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2405 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2406 gobble the second argument (and probably set the heapsize to something
2410 local(*Args, $option, $rest_of_arg) = @_;
2412 if ($rest_of_arg ne '') {
2413 return($rest_of_arg);
2414 } elsif ($#Args >= 0) {
2415 local($temp) = $Args[0]; shift(@Args);
2418 print STDERR "$Pgm: no argument following $option option\n";
2429 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2431 foreach $f ( @HsC_antiflags ) {
2432 return(0) if $flag eq $f;
2434 # foreach $f ( @HsC_flags ) {
2435 # return(0) if $flag eq $f;
2440 sub squashHscFlag { # pretty terrible
2444 foreach $f ( @HsC_flags ) {
2445 if ($flag eq $f) { $f = ''; }
2453 foreach $f ( @flags ) {
2454 push( @HsC_flags, $f ) if &isntAntiFlag($f);
2459 To add another system library, you'll need to augment the
2460 Supported_syslibs variable with name and info on your addition
2461 to the syslib family. The info bit consist of the following:
2463 - interface file directory
2464 see the misc or posix entry for how to distinguish
2465 between using installed and build tree directories.
2467 - directory location of archives
2469 - location of (way-independent) C support libs.
2470 not all libraries need this - if you don't, just
2471 give the empty string.
2472 - list of syslibs you depend on.
2474 - additional ghc command line flags that should be used.
2475 - additional C compiler command line flags that should be used.
2481 # Hash to keep track of
2482 %Syslibs_added = ();
2485 local($syslib) = @_;
2487 # Lifting this out of this sub brings it out of scope - why??
2488 %Supported_syslibs =
2490 [ # where to slurp interface files from
2492 ? "$InstLibDirGhc/imports/exts"
2493 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/exts"
2495 , # where to find the archive to use when linking
2498 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/exts"
2501 , '' # Syslib dependencies
2502 , '' # extra ghc opts
2503 , '' # extra cc opts
2504 , '' # extra ld opts
2508 [ # where to slurp interface files from
2510 ? "$InstLibDirGhc/imports/misc"
2511 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc"
2513 , # where to find the archive to use when linking
2516 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc"
2518 , # where to find the cbits archive to use when linking
2521 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc/cbits"
2523 , 'exts' # Syslib dependencies
2524 , '' # extra ghc opts
2525 , '' # extra cc opts
2526 , ( $TargetPlatform =~ /-solaris2$/ ? '-lnsl -lsocket' : '')
2529 [ # where to slurp interface files from
2531 ? "$InstLibDirGhc/imports/hbc"
2532 : "$TopPwd/CONTRIB/libraries/hbc/src"
2534 , # where to find the archive to use when linking
2537 : "$TopPwd/CONTRIB/libraries/src/hbc"
2539 , # where to find the cbits archive to use when linking
2542 : "$TopPwd/CONTRIB/libraries/hbc/cbits"
2544 , 'exts' # Syslib dependencies
2545 , '' # extra ghc opts
2546 , '' # extra cc opts
2550 [ # where to slurp interface files from
2552 ? "$InstLibDirGhc/imports/posix"
2553 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix"
2555 , # where to find the archive to use when linking
2558 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix"
2560 , # where to find the cbits archive to use when linking
2563 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix/cbits"
2565 , 'misc' # Syslib dependencies
2566 , '' # extra ghc opts
2567 , '' # extra cc opts
2568 , '' # extra ld opts
2571 [ # where to slurp interface files from
2573 ? "$InstLibDirGhc/imports/concurrent"
2574 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent"
2576 , # where to find the archive to use when linking
2579 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent"
2581 , '' # where to find the cbits archive to use when linking
2582 , '' # Syslib dependencies
2583 , '' # extra ghc opts
2584 , '' # extra cc opts
2585 , '' # extra ld opts
2588 [ # where to slurp interface files from
2590 ? "$InstLibDirGhc/imports/win32"
2591 : "$TopPwd/hslibs/win32/src"
2593 , # where to find the archive to use when linking
2596 : "$TopPwd/hslibs/win32/src"
2599 , 'exts' # Syslib dependencies
2600 , '' # extra ghc opts
2601 , '' # extra cc opts
2602 , '-luser32 -lgdi32' # extra ld opts
2606 # check if it's supported..
2608 if ( !exists $Supported_syslibs{$syslib} ) {
2609 print STDERR "$Pgm: no such system library (-syslib): $syslib\n";
2614 # This check is here to avoid syslib loops from
2615 # spoiling the party. A side-effect of it is that
2616 # it disallows multiple mentions of a syslib on a command-line,
2617 # explicit *and* implicit ones (i.e., "-syslib exts -syslib misc"
2618 # is not equal to "-syslib exts -syslib misc -syslib exts",
2619 # which it needs to be)
2621 # Since our current collection of syslibs don't have any
2622 # loops, this test is disabled.
2624 # ToDo: loop avoidance scheme when the need arises
2626 #return if ( exists $Syslibs_added{$syslib} );
2628 $Syslibs_added{$syslib} = 1;
2630 local ($hi_dir, $lib_dir, $lib_cbits_dir,
2631 $syslib_deps, $syslib_ghc_opts,
2632 $syslib_cc_opts, $syslib_ld_opts) = @{ $Supported_syslibs{$syslib} };
2635 unshift(@SysImport_dir, $hi_dir);
2636 push(@SysLibrary_dir, $lib_dir);
2637 push(@SysLibrary_dir, $lib_cbits_dir) if ( $lib_cbits_dir ne '');
2639 push(@SysLibrary, "-lHS$syslib");
2640 push(@SysLibrary, "-lHS${syslib}_cbits") if ( $lib_cbits_dir ne '');
2641 push(@SysLibrary, $syslib_ld_opts) if ($syslib_ld_opts ne '');
2643 # Add on any extra dependencies.
2644 foreach $lib (split(' ',$syslib_deps)) {
2650 Source files may have {-# OPTIONS ... #-} pragmas at the top, containing
2651 command line options we want to append to collection of commands specified
2652 directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell
2653 file for any such pragmas:
2656 sub check_for_source_options {
2657 local($file,$ifile) = @_;
2658 local($comment_start,$comment_end);
2660 if ($ifile =~ /\.hc$/ ||
2663 $ifile =~ /_s$/ ) { # `Real' C intermediate
2664 $comment_start = "/\\*";
2665 $comment_end = "\\*/";
2666 } else { # Assume it is a file containing Haskell source
2667 $comment_start = "{-#";
2668 $comment_end = "#-}";
2671 open(FILE,$file) || return(1); # No big loss
2674 if ( /^${comment_start} OPTIONS (.*)${comment_end}$/ ) {
2675 # add the options found at the back of the command line.
2676 local(@entries) = split(/\s+/,$1);
2677 print STDERR "Found OPTIONS " . join(' ',@entries) . " in $file\n" if $Verbose;
2678 push(@File_options, @entries);
2680 elsif ( /^$/ ) { # ignore empty lines
2683 elsif ( /^#line.+$/ ) { # ignore comment lines (unused..ToDo: rm )
2686 elsif ( /^{-# LINE.+$/ ) { # ignore line pragmas
2689 else { # stop looking, something non-empty / not
2690 # ${comment_start} OPTIONS .. ${comment_end} encountered.
2691 close(FILE);return(0);
2700 We split the initial argv up into three arrays:
2706 the reason for doing so is to be able to deal
2707 with {-# OPTIONS #-} pragma in source files properly.
2713 arg: while($_ = $args[0]) {
2715 # sigh, we have to deal with these -option arg specially here.
2716 /^-(tmpdir|odir|ohi|o|isuf|osuf|hisuf|odump|syslib)$/ &&
2717 do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; };
2718 /^--?./ && do { push(@Cmd_opts, $_); next arg; };
2720 if (/\.([^_]+_)?[oa]$/) {
2721 push(@Link_file, $_);
2723 push(@Input_file, $_);
2726 # input files must exist:
2728 print STDERR "$Pgm: input file doesn't exist: $_\n";
2736 When saving an intermediate file (.hc or .s) away, we
2737 have to prefix any OPTIONS found in the original source file.
2740 sub saveIntermediate {
2741 local ($final,$suffix,$tmp)= @_ ;
2744 # $final -- root of where to park ${final}.${suffix}
2745 # $tmp -- temporary file where hsc put the intermediate file.
2747 # Delete the old file
2748 $to_do = "$Rm ${final}.${suffix}"; &run_something($to_do, "Removing old .${suffix} file");
2750 if ( $#File_options >= 0 ) { # OPTIONS found in Haskell source unit
2751 # Add OPTION comment to the top of the generated .${suffix} file
2752 open(TEMP, "> ${final}.${suffix}") || &tidy_up_and_die(1,"Can't open ${final}.${suffix}\n");
2753 print TEMP "/* OPTIONS " . join(' ',@File_options) . " */\n";
2755 print STDERR "Prepending OPTIONS: " . join(' ',@File_options) . " to ${final}.${suffix}\n" if $Verbose;
2757 $to_do = "$Cat $tmp >> ${final}.${suffix}";
2758 &run_something($to_do, "Saving copy of .${suffix} file");
2765 Command-line processor
2771 # can't use getopt(s); what we want is too complicated
2773 arg: while($_ = $Args[0]) {
2776 #---------- help -------------------------------------------------------
2777 if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; }
2779 #-----------version ----------------------------------------------------
2780 /^--version$/ && do { print STDERR "${ProjectName}, version ${ProjectVersion}, patchlevel ${ProjectPatchLevel}\n"; exit $Status; };
2782 #---------- verbosity and such -----------------------------------------
2783 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
2785 #---------- what phases are to be run ----------------------------------
2786 /^-(no-)?recomp/ && do { $Do_recomp_chkr = ($1 eq '') ? 1 : 0; next arg; };
2788 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
2789 # change the global default:
2790 # we won't run cat; we'll run the real thing
2792 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
2794 # stop after generating C
2796 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
2797 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
2799 # leave out actual C generation (debugging) [also turns off interface gen]
2802 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
2803 # _do_ generate an interface; usually used as: -noC -hi
2804 /^-hi-with-(.*)$/ && do { $HiOnStdout = 1; $HiWith .= " $1" ; $ProduceHi = '-hifile='; next arg; };
2805 # limit ourselves to outputting a particular section.
2807 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
2808 # don't generate an interface (even if generating C)
2810 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
2811 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
2812 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
2813 /^-keep-hi-diffs$/ && do { $Keep_HiDiffs = 1; next arg; };
2815 # show/disable diffs if the interface file changes
2817 /^-E$/ && do { push(@CcBoth_flags, '-E');
2818 $Only_preprocess_C = 1;
2819 $Do_as = 0; $Do_lnkr = 0; next arg; };
2820 # stop after preprocessing C
2821 /^-M$/ && do { $Only_generate_deps = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2822 # only generate dependency information.
2823 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
2824 # stop after generating assembler
2826 /^-c$/ && do { $Do_lnkr = 0; next arg; };
2827 # stop after generating .o files
2829 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
2830 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
2831 # don't do consistency-checking after a link
2833 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', '');
2834 $Tmp_prefix = "$Tmp_prefix/ghc$$";
2835 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
2837 # use an alternate directory for temp files
2839 #---------- redirect output --------------------------------------------
2841 # -o <file>; applies to the last phase, whatever it is
2842 # "-o -" sends it to stdout
2843 # if <file> has a directory component, that dir must already exist
2845 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', '');
2847 # Hack, of the worst sort: don't do validation of
2848 # odir argument if you're using -M (dependency generation).
2850 if ( ! $Only_generate_deps && ! -d $Specific_output_dir) {
2851 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
2856 /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', '');
2857 if ($Specific_output_file ne '-'
2858 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
2859 local($dir_part) = $1;
2860 if (! -d $dir_part) {
2861 print STDERR "$Pgm: no such directory: $dir_part\n";
2867 # NB: -isuf not documented yet (because it doesn't work yet)
2868 /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', '');
2869 if ($Isuffix =~ /\./ ) {
2870 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
2875 /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', '');
2876 if ($Osuffix =~ /\./ ) {
2877 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
2882 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
2883 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', '');
2884 if ($Specific_hi_file ne '-'
2885 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
2886 local($dir_part) = $1;
2887 if (! -d $dir_part) {
2888 print STDERR "$Pgm: no such directory: $dir_part\n";
2894 # The suffix to use when looking for interface files
2895 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', '');
2896 if ($HiSuffix =~ /\./ ) {
2897 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
2901 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', '');
2902 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
2903 local($dir_part) = $1;
2904 if (! -d $dir_part) {
2905 print STDERR "$Pgm: no such directory: $dir_part\n";
2911 #-------------- scc & Profiling Stuff ----------------------------------
2913 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
2916 # generate auto SCCs on top level bindings
2917 # -auto-all = all top level bindings
2918 # -auto = only top level exported bindings
2919 $PROFauto = ( /-all/ )
2920 ? '-fauto-sccs-on-all-toplevs'
2921 : '-fauto-sccs-on-exported-toplevs';
2924 /^-caf-all/ && do { # generate individual CAF SCC annotations
2925 $PROFcaf = '-fauto-sccs-on-individual-cafs';
2928 /^-ignore-scc$/ && do {
2929 # forces ignore of scc annotations even if profiling
2930 $PROFignore_scc = '-W';
2933 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
2936 /^-unprof-scc-auto/ && do {
2937 # generate auto SCCs on top level bindings when not profiling.
2938 # Used to measure optimisation effects of presence of sccs.
2939 $UNPROFscc_auto = ( /-all/ )
2940 ? '-fauto-sccs-on-all-toplevs'
2941 : '-fauto-sccs-on-exported-toplevs';
2944 #--------- ticky/parallel ----------------------------------------------
2945 # we sort out the details a bit later on
2947 /^-gransim$/ && do { $GRANing = 'g'; &add_syslib('concurrent'); next arg; }; # GranSim
2948 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
2949 /^-parallel$/ && do { $PARing = 'p'; &add_syslib('concurrent'); next arg; }; # parallel Haskell
2951 #-------------- "user ways" --------------------------------------------
2953 (/^-user-setup-([a-oA-Z])$/ ) &&
2955 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
2957 local($stuff) = $UserSetupOpts{$BuildTag};
2958 local(@opts) = split(/\s+/, $stuff);
2960 # feed relevant ops into the arg-processing loop (if any)
2961 unshift(@Args, @opts) if $#opts >= 0;
2965 #---------- set search paths for libraries and things ------------------
2967 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
2968 # prepends the items to the list); -I is for including C .h files.
2970 /^-i$/ && do { @Import_dir = (); # import path cleared!
2971 @SysImport_dir = ();
2972 print STDERR "WARNING: import paths cleared by `-i'\n";
2975 /^-i(.*)/ && do { local(@new_items)
2976 = split( /:/, &grab_arg_arg(*Args,'-i', $1));
2977 unshift(@Import_dir, @new_items);
2980 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; };
2981 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; };
2982 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; };
2984 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1);
2985 &add_syslib($syslib);
2988 #=======================================================================
2989 # various flags that we can harmlessly send to one program or another
2990 # (we will later "reclaim" some of the compiler ones now sent to gcc)
2991 #=======================================================================
2993 #---------- this driver itself (ghc) -----------------------------------
2994 # these change what executable is run for each phase:
2995 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
2996 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
2997 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
2998 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
2999 /^-pgma(.*)$/ && do { $As = $1; next arg; };
3000 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
3001 /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; };
3003 #---------- the get-anything-through opts (all pgms) -------------------
3004 # these allow arbitrary option-strings to go to any phase:
3005 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
3006 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
3007 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
3008 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
3009 /^-optp(.*)$/ && do { push(@HsP_flags, $1); next arg; };
3010 /^-optcpp(.*)$/ && do { push(@Cpp_define, $1); $Only_preprocess_hc = ($1 eq "-E"); next arg; };
3011 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
3012 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
3013 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
3014 /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; };
3016 #---------- Haskell C pre-processor (hscpp) ----------------------------
3017 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; };
3018 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; };
3020 #---------- post-Haskell "assembler"------------------------------------
3021 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
3022 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
3024 #---------- Haskell compiler (hsc) -------------------------------------
3026 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
3027 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
3029 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
3031 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
3034 # have the compiler proper generate concurrent code,
3035 # really only used when you want to configure your own
3036 # special user compilation way.
3038 # (ditto for -fgransim, fscc-profiling, -fparallel and -fticky-ticky)
3040 /^-fscc-profiling$/ && do { push(@HsC_flags,$_); next arg; };
3041 /^-fticky-ticky$/ && do { push(@HsC_flags,$_); next arg; };
3042 /^-fgransim$/ && do { push(@HsC_flags,$_); next arg; };
3043 /^-fparallel$/ && do { push(@HsC_flags,$_); next arg; };
3045 /^-split-objs$/ && do {
3046 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|rs6000|sparc)-/ ) {
3048 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
3053 push(@HsC_flags, "-fglobalise-toplev-names");
3054 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
3056 require('ghc-split.prl')
3057 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
3061 /^-fno-asm-mangling$/ && do { $DoAsmMangling = 0; next arg; };
3063 /^-fallow-overlapping-instances$/ && do { push(@HsC_flags, $_); next arg; };
3064 /^-fallow-undecidable-instances$/ && do { push(@HsC_flags, $_); next arg; };
3066 && do { push(@HsC_flags, $_);
3067 push(@HsP_flags, '-N');
3069 # -fglasgow-exts implies -syslib exts
3070 &add_syslib('exts');
3075 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
3076 /^-fno-speciali[sz]e$/
3077 && do { $Oopt_DoSpecialise = ''; next arg; };
3080 # Now the foldr/build options, which are *on* by default (for -O).
3083 && do { $Oopt_FoldrBuild = 1;
3084 $Oopt_FB_Support = '-fdo-arity-expand';
3088 /^-fno-foldr-build$/
3089 && do { $Oopt_FoldrBuild = 0;
3090 $Oopt_FB_Support = '';
3093 /^-fno-foldr-build-rule$/
3094 && do { $Oopt_FoldrBuild = 0;
3097 /^-fno-enable-tech$/
3098 && do { $Oopt_FB_Support = '';
3101 /^-fno-snapback-to-append$/
3102 && do { $Oopt_FoldrBuildInline .= ' -fdo-not-fold-back-append ';
3105 # --------------- Renamer -------------
3108 /^-fno-prune-tydecls$/ && do { push(@HsC_flags, $_); next arg; };
3109 /^-fno-prune-instdecls$/ && do { push(@HsC_flags, $_); next arg; };
3113 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
3114 /^-fvia-[cC]$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
3119 && do { push(@HsC_flags, $_); next arg };
3121 /^-funfold-casms-in-hi-file$/
3122 && do { push(@HsC_flags, $_); next arg };
3124 /^(-fmax-simplifier-iterations)(.*)$/
3125 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2);
3128 /^-fno-pedantic-bottoms$/
3129 && do { $Oopt_PedanticBottoms = ''; next arg; };
3131 /^-fno-pre-inlining$/
3132 && do { push(@HsC_flags, $_); next arg };
3134 /^-fdo-monad-eta-expansion$/
3135 && do { $Oopt_MonadEtaExpansion = $_; next arg; };
3137 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
3138 && do { push(@HsC_flags, $_); next arg; };
3140 # --------------- Warnings etc. ------
3142 /^-fwarn-(.*)$/ && do { push(@HsC_flags, $_); next arg; };
3144 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
3145 &squashHscFlag("-f$1");
3148 /^-W$/ && do { push(@HsC_flags, @MinusWOpts); next arg; };
3149 /^-Wall$/ && do { push(@HsC_flags, @MinusWallOpts); next arg; };
3150 /^(-Wnot|w)$/ && do { foreach (@Hsc_flags) {
3151 /^-fwarn-(.*)$/ && do { $_=''; };
3153 push(@HsC_antiflags, @StandardWarnings);
3156 # --------------- fun stuff ----------------
3158 /^-freport-compile$/ && do { push(@HsC_flags, $_); next arg; };
3160 # --------------- platform specific flags (for gcc mostly) ----------------
3162 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes,
3163 # for 2.6.x..?, does not apply for 2.7.2
3165 unshift(@CcBoth_flags, ( $_ ));
3168 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
3169 && do { # for GCC for SPARCs
3170 unshift(@CcBoth_flags, ( $_ ));
3173 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
3174 $StolenX86Regs = $1;
3177 #*************** ... and lots of debugging ones (form: -d* )
3179 # -d(no-)core-lint is done this way so it is turn-off-able.
3180 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
3181 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
3182 # Ditto for STG lint
3183 /^-dstg-lint/ && do { $StgLint = '-dstg-lint'; next arg; };
3184 /^-dno-stg-lint/ && do { $StgLint = ''; next arg; };
3186 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
3187 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
3188 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
3189 /^-dshow-rn-stats/ && do { push(@HsC_flags, $_); next arg; };
3190 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
3191 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
3192 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
3193 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
3195 #*************** ... and now all these -R* ones for its runtime system...
3197 /^-Rscale-sizes?(.*)/ && do {
3198 $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1);
3201 /^(-H|-Rmax-heapsize)(.*)/ && do {
3202 local($heap_size) = &grab_arg_arg(*Args,$1, $2);
3203 if ($heap_size =~ /(\d+)[Kk]$/) {
3204 $heap_size = $1 * 1000;
3205 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
3206 $heap_size = $1 * 1000 * 1000;
3207 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
3208 $heap_size = $1 * 1000 * 1000 * 1000;
3210 if ($heap_size <= 0) {
3211 print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n";
3212 $Specific_heap_size = 0;
3214 # if several heap sizes given, take the largest...
3215 } elsif ($heap_size >= $Specific_heap_size) {
3216 $Specific_heap_size = $heap_size;
3218 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n";
3222 /^(-K|Rmax-(stk|stack)size)(.*)/ && do {
3224 local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3);
3225 if ($stk_size =~ /(\d+)[Kk]$/) {
3226 $stk_size = $1 * 1000;
3227 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
3228 $stk_size = $1 * 1000 * 1000;
3229 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
3230 $stk_size = $1 * 1000 * 1000 * 1000;
3232 if ($stk_size <= 0) {
3233 print STDERR "$Pgm: resetting stack-size to zero!!! $stk_size\n";
3234 $Specific_stk_size = 0;
3236 # if several stack sizes given, take the largest...
3237 } elsif ($stk_size >= $Specific_stk_size) {
3238 $Specific_stk_size = $stk_size;
3240 print STDERR "$Pgm: ignoring stack-size-setting option ($flag $stk_size)...not the largest seen\n";
3244 /^-Rgc-stats$/ && do { $CollectingGCstats++;
3245 # the two RTSs do this diff ways; we will try to compensate
3248 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
3250 #---------- C high-level assembler (gcc) -------------------------------
3251 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
3253 # -dgcc-lint is a useful way of making GCC very fussy.
3254 # From alan@spri.levels.unisa.edu.au (Alan Modra).
3255 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
3256 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
3257 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
3259 # inject "#include <wurble>" into the compiler's C output!
3261 /^-#include(.*)/ && do {
3262 local($to_include) = &grab_arg_arg(*Args,'-#include', $1);
3263 push(@CcInjects, "#include $to_include\n");
3266 #---------- Linker (gcc, really) ---------------------------------------
3268 /^-static$/ && do { push(@HsC_flags, $_); push(@Ld_flags, $_); next arg; };
3269 /^-no-hs-main$/ && do { $NoHaskellMain=1; next arg; };
3271 #---------- mixed cc and linker magic ----------------------------------
3272 # this optimisation stuff is finally sorted out later on...
3274 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
3276 /^-O[1-2]?$/ && do {
3277 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
3278 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
3280 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
3283 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
3285 /^-Ofile(.*)/ && do {
3287 local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1);
3288 @HsC_minusO3_flags = ();
3290 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
3293 s/\#.*//; # death to comments
3294 s/[ \t]+//g; # death to whitespace
3295 next if /^$/; # ditto, blank lines
3296 s/([()*{}])/\\$1/g; # protect shell metacharacters
3298 push(@CcBoth_flags, $1);
3300 push(@HsC_minusO3_flags, $_);
3306 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
3307 # in the consistency info
3311 #---------- linking .a file --------------------------------------------
3313 /^-Main(.*)/ && do {
3314 # specifies main or mainPrimIO to be linked
3318 #---------- catch unrecognized flags -----------------------------------
3321 print STDERR "$Pgm: unrecognised option: $_\n";
3327 } # end of processArgs