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
267 # 'nm' is used for consistency checking (ToDo: mk-world-ify)
268 # ToDo: check the OS or something ("alpha" is surely not the crucial question)
269 $Nm = ($TargetPlatform =~ /^alpha-/) ? 'nm -B' : 'nm';
272 Warning packages that are controlled by -W and -Wall. The 'standard'
273 warnings that you get all the time are
275 -fwarn-overlapping-patterns
276 -fwarn-missing-methods
277 -fwarn-duplicate-exports
279 these are turned off by -Wnot.
282 @StandardWarnings = ('-fwarn-overlapping-patterns',
283 '-fwarn-missing-methods',
284 '-fwarn-duplicate-exports');
285 @MinusWOpts = (@StandardWarnings,
286 '-fwarn-incomplete-patterns',
287 '-fwarn-unused-binds',
288 '-fwarn-unused-imports');
289 @MinusWallOpts = (@MinusWOpts,
290 '-fwarn-unused-matches',
291 '-fwarn-type-defaults',
292 '-fwarn-name-shadowing',
293 '-fwarn-missing-signatures');
296 What options \tr{-user-setup-a} turn into (user-defined ``packages''
298 of options). Note that a particular user-setup implies a particular
299 Prelude ({\em including} its interface file(s)).
301 $BuildTag = ''; # default is sequential build w/ Appel-style GC
303 %BuildDescr = (# system ways begin
304 '', 'normal sequential',
308 '_mp', "$WAY_mp_NAME",
309 '_mg', "$WAY_mg_NAME",
327 '_B', "$WAY_B_NAME" );
329 # these are options that are "fed back" through the option processing loop
333 '_a', "$WAY_a_HC_OPTS",
334 '_b', "$WAY_b_HC_OPTS",
335 '_c', "$WAY_c_HC_OPTS",
336 '_d', "$WAY_d_HC_OPTS",
337 '_e', "$WAY_e_HC_OPTS",
338 '_f', "$WAY_f_HC_OPTS",
339 '_g', "$WAY_g_HC_OPTS",
340 '_h', "$WAY_h_HC_OPTS",
341 '_i', "$WAY_i_HC_OPTS",
342 '_j', "$WAY_j_HC_OPTS",
343 '_k', "$WAY_k_HC_OPTS",
344 '_l', "$WAY_l_HC_OPTS",
345 '_m', "$WAY_m_HC_OPTS",
346 '_n', "$WAY_n_HC_OPTS",
347 '_o', "$WAY_o_HC_OPTS",
348 '_A', "$WAY_A_HC_OPTS",
349 '_B', "$WAY_B_HC_OPTS",
352 '_p', "$WAY_p_HC_OPTS",
353 '_t', "$WAY_t_HC_OPTS",
354 '_u', "$WAY_u_HC_OPTS",
355 '_mp', "$WAY_mp_HC_OPTS",
356 '_mg', "$WAY_mg_HC_OPTS");
360 Import/include directories (\tr{-I} options) are sufficiently weird to
361 require special handling.
364 @Import_dir = ('.'); #-i things
365 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
367 # where to look for interface files (system hi's, i.e., prelude and syslibs)
368 @SysImport_dir = ( $INSTALLING )
369 ? ( "$InstLibDirGhc/imports/std" )
370 : ( "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std" );
372 # We need to look in ghc/ and glaExts/ when searching for implicitly needed .hi files, but
373 # we should really *not* look there for explicitly imported modules.
375 $Haskell1Version = 5; # i.e., Haskell 1.4
378 # Cpp symbols defined when we're processing Haskell source.
381 ( "-D__HASKELL1__=$Haskell1Version"
382 , "-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 = ( $INSTALLING ) ? "$InstLibExecDirGhc/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 $Only_generate_dll = 0;
463 $PostprocessCcOutput = 0;
466 # static = 0 => produce code for DLLs (when compiling & linking.)
468 $Static = 0 if ($EnableWin32DLLs eq 'YES');
470 # native code-gen or via C?
471 $HaveNativeCodeGen = $GhcWithNativeCodeGen;
472 $HscOut = '-C='; # '-C=' ==> .hc output; '-S=' ==> .s output; '-N=' ==> neither
474 if ($HaveNativeCodeGen ne 'YES') && $TargetPlatform =~ /^(alpha)-/;
475 # TEMP: disable x86 & Sparc if $HaveNativeCodeGen && $TargetPlatform =~ /^(i386|alpha|sparc)-/;
476 $ProduceHi = '-hifile=';
482 $CollectingGCstats = 0;
483 $CollectGhcTimings = 0;
484 $DEBUGging = ''; # -DDEBUG and all that it entails (um... not really)
485 $PROFing = ''; # set to p or e if profiling
486 $PROFgroup = ''; # set to group if an explicit -Ggroup specified
487 $PROFauto = ''; # set to relevant hsc flag if -auto or -auto-all
488 $PROFcaf = ''; # set to relevant hsc flag if -caf-all
489 $PROFdict = ''; # set to relevant hsc flag if -auto-dicts
490 $PROFignore_scc = ''; # set to relevant parser flag if explicit sccs ignored
491 $UNPROFscc_auto = ''; # set to relevant hsc flag if forcing auto sccs without profiling
492 $TICKYing = ''; # set to t if compiling for ticky-ticky profiling
493 $PARing = ''; # set to p if compiling for PAR
494 $GRANing = ''; # set to g if compiling for GRAN
495 $Specific_hi_file = ''; # set by -ohi <file>; "-" for stdout
496 $Specific_dump_file = ''; # set by -odump <file>; "-" for stdout
497 $Using_dump_file = 0;
499 $Osuffix = ''; # default: use the normal suffix for that kind of output
501 $HiSuffix_prelude = '';
503 $Do_recomp_chkr = 0; # don't use the recompilatio checker unless asked
504 $Do_cc = -1; # a MAGIC indeterminate value; will be set to 1 or 0.
507 $Keep_hc_file_too = 0;
508 $Keep_s_file_too = 0;
509 $UseGhcInternals = 0; # if 1, may use GHC* modules
511 $DoAsmMangling = 1; # on by default, off by -fno-asm-mangling
513 $Dump_parser_output = 0;
515 $Dump_asm_splitting_info = 0;
516 $NoImplicitPrelude = 0;
517 # 1 => don't tell the linker to hoist in PrelMain.Main, as an
518 # external main is provided instead.
521 } # end of initDriverGlobals (Sigh)
523 # we split the argv passed to the driver into three:
528 # and files to be linked...
534 # cmd line options prefixing the unit we're compiling
539 We inject consistency-checking information into \tr{.hc} files (both
540 when created by the Haskell compiler and when compiled by the C
541 compiler), so that we can check that an executable is made from
542 consistently-built pieces. (The check is normally done just after
543 linking.) The checking is done by introducing/munging
544 \tr{what(1)}-style strings. Anyway, here are the relevant global
545 variables and their defaults:
547 $LinkChk = 0; # set to 0 if the link check should *not* be done
549 # major & minor version numbers; major numbers must always agree;
550 # minor disagreements yield a warning.
551 $HsC_major_version = $HscMajorVersion;
552 $HsC_minor_version = $HscMinorVersion;
553 $Cc_major_version = $CcMajorVersion;
554 $Cc_minor_version = $CcMinorVersion;
556 # options: these must always agree
557 $HsC_consist_options = ''; # we record, in this order:
558 # Build tag; debugging?
559 $Cc_consist_options = ''; # we record, in this order:
560 # Build tag; debugging?
563 %************************************************************************
565 \section[Driver-parse-argv]{Munge the command-line options}
567 %************************************************************************
569 Now slurp through the arguments.
572 &initDriverGlobals();
573 &splitCmdLine(@ARGV);
574 # Run through the cmd-line first time.
575 &processArgs(@Cmd_opts);
577 # Check to see if driver is only in the business
578 # to generate dependencies
579 if ( $Status == 0 && $Only_generate_deps ) {
581 push (@MkDependHS_flags, "-o$Osuffix") if $Osuffix;
582 push (@MkDependHS_flags, "-s$BuildTag") if $BuildTag;
583 # They're not (currently) needed, but we need to quote any -#include options
584 foreach (@Cmd_opts) {
585 s/-#include.*$/'$&'/g;
587 local($to_do) = "$MkDependHS @MkDependHS_flags @HsSourceCppOpts -- @Cmd_opts -- @Input_file" ;
588 &run_something($to_do, 'Haskell dependencies');
592 # ..or just to construct a (Haskell) DLL.
593 if ( $Status == 0 && $Only_generate_dll && $EnableWin32DLLs ) {
599 # if there are several input files,
600 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
601 # (except if linking, of course)
603 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
604 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
605 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
606 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
607 print STDERR "\tPerhaps the -odir option will do what you want.\n";
612 # check for various pathological -o and -odir combinations...
613 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
614 if ($Specific_output_file eq '-') {
615 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
617 } else { # amalgamate...
618 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
619 # ToDo: check we haven't got a junk name now...
620 $Specific_output_dir = ''; # reset
624 # crash and burn if there were errors
626 print STDERR $ShortUsage;
631 %************************************************************************
633 \section[Driver-post-argv-mangling]{Setup after reading options}
635 %************************************************************************
637 %************************************************************************
639 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
641 %************************************************************************
643 We come now to the default ``wads of options'' that are turned on by
644 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
645 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
648 The user can also specify his/her own list of options in a file; in
649 that case, the work is already done (see stuff about @minusO3@,
652 GHC allows very precise control of what happens during a compilation.
653 Core-to-Core and STG-to-STG passes can be run in any order, as many
654 times as you like. Individual transformations can be turned on or
657 Sadly, however, there are some interdependencies \& Things You Must
658 Not Do. Here is the list.
662 \item[\tr{-fspecialise}:]
663 The specialiser must have dependency-analysed input; but if you run
664 the simplifier to do this, you must not let it toss away unused
665 bindings! (The typechecker conveys some specialisation info via
666 ``unused'' bindings...)
668 \item[\tr{-ffloat-inwards}:]
669 Floating inwards should be done before strictness analysis, because
670 the latter will give better results.
672 \item[\tr{-fstatic-args}:]
673 The static-arguments-transformation pass {\em must} have the
674 simplifier run right after it.
676 \item[\tr{-fcalc-inlinings[12]}:]
677 Not required, but there may be slight gains by re-simplifying after
678 this is done. (You could then \tr{-fcalc-inlinings} again, just for
681 \item[\tr{-ffull-laziness}:]
682 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
683 that's run. (Um, well, howzabout the simplifier just once more...)
688 \item[\tr{-fupdate-analysis}:]
689 It really really wants to be the last STG-to-STG pass that is run.
694 sub setupOptimiseFlags {
700 '-ffloat-lets-exposing-whnf',
701 '-ffloat-primops-ok',
704 # '-fdo-lambda-eta-expansion', # too complicated
706 # '-flet-to-case', # no strictness analysis, so...
707 $Oopt_PedanticBottoms,
708 # $Oopt_MonadEtaExpansion, # no thanks
710 # These two work fine, if you really want no simplification at all,
711 # for bizarre test reasons. But you get really terrible code if you use them,
712 # for example: let x = e in x
713 # with dozens of redundant thunks etc. So I'm leaving them out.
715 # '-fsimpl-uf-use-threshold0',
716 # '-fessential-unfoldings-only',
719 # The presence of -fclone-binds is *temporary* to work around
720 # the fact that the desugarer in 3.0{2.3} does generate
721 # bindings with identical ids, and the type checker doesn't perform
722 # properly cloned type substitutions. Instead, we make sure that all
723 # binders are cloned first time through the simplifier.
725 # Will be properly fixed in the `new compiler` I hear, at which point
726 # the cloning can be turned off here.
731 $Oopt_MaxSimplifierIterations,
732 $Oopt_ShowSimplifierProgress,
735 # '-ffull-laziness', # removed 95/04 WDP following Andr\'e's lead
737 $Oopt_FinalStgProfilingMassage
740 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
742 '-fdo-eta-reduction',
744 # initial simplify: mk specialiser happy: minimum effort please
748 '-fkeep-spec-pragma-ids', # required before specialisation
750 # I don't understand why we want -fessential-unfoldings-only here
751 # If we have it, the following nasty thing happens:
755 # where "*" means exported.
756 # In the essential-unfoldings pass we still substitute f for g
757 # but we don't substitute E for f first. So we get
761 # The g=f will get reverse-substituted later, but it's untidy. --SLPJ
763 # SDM: Here's why it's necessary.
765 # If we unfold in the first pass before the specialiser is run
766 # we miss opportunities for specialisation because eg. wrappers
767 # have been inlined for specialisable functions.
769 # This shows up in PrelArr.lhs - the specialised instance for newArray
770 # calls the generic rangeSize, because rangeSize is strict and is
771 # replaced by its wrapper by the simplifier.
773 '-fessential-unfoldings-only',
774 '-fsimpl-uf-use-threshold0',
776 # See remark re: cloning in defn of minusnotO
780 '-fmax-simplifier-iterations1',
781 $Oopt_PedanticBottoms,
784 ($Oopt_DoSpecialise) ? (
788 '-fsimplify', # need dependency anal after specialiser ...
789 '[', # need tossing before calc-inlinings ...
791 '-ffloat-lets-exposing-whnf',
792 '-ffloat-primops-ok',
796 # '-fdo-eta-reduction',
797 '-fdo-lambda-eta-expansion',
799 $Oopt_PedanticBottoms,
800 $Oopt_MonadEtaExpansion,
801 $Oopt_MaxSimplifierIterations,
802 $Oopt_ShowSimplifierProgress,
804 # The presence of -fclone-binds is *crucial* here as
805 # -ffull-laziness (which we're about to do next) floats
806 # bindings outwards, so we better make sure that this
807 # doesn't result in the floating out of bindings
808 # with identical uniques, i.e., -ffull-laziness needs
809 # to be preceeded by a simplifier pass with -fclone-binds
814 # ($Oopt_FoldrBuildWW) ? (
815 # '-ffoldr-build-ww-anal',
816 # '-ffoldr-build-worker-wrapper',
820 # '-ffloat-lets-exposing-whnf',
821 # '-ffloat-primops-ok',
825 # '-fdo-eta-reduction',
826 # '-fdo-lambda-eta-expansion',
828 # $Oopt_PedanticBottoms,
829 # $Oopt_MonadEtaExpansion,
830 # $Oopt_MaxSimplifierIterations,
831 # $Oopt_ShowSimplifierProgress,
835 # this pass-ordering sequence was agreed by Simon and Andr\'e
836 # (WDP 94/07, 94/11).
839 ($Oopt_FoldrBuild) ? (
840 '-ffoldr-build-on', # desugar list comprehensions for foldr/build
844 '-fignore-inline-pragma', # **** NB!
845 '-fdo-foldr-build', # NB
847 '-ffloat-lets-exposing-whnf',
848 '-ffloat-primops-ok',
852 # '-fdo-eta-reduction',
853 '-fdo-lambda-eta-expansion', # After full laziness
855 $Oopt_PedanticBottoms,
856 $Oopt_MonadEtaExpansion,
857 $Oopt_MaxSimplifierIterations,
858 $Oopt_ShowSimplifierProgress,
867 '-ffloat-lets-exposing-whnf',
868 '-ffloat-primops-ok',
872 '-fdo-eta-reduction',
873 '-fdo-lambda-eta-expansion',
875 ($Oopt_FoldrBuildInline),
876 # you need to inline foldr and build
877 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
878 # but do reductions if you see them!
879 $Oopt_PedanticBottoms,
880 $Oopt_MonadEtaExpansion,
881 $Oopt_MaxSimplifierIterations,
882 $Oopt_ShowSimplifierProgress,
891 '-ffloat-lets-exposing-whnf',
892 '-ffloat-primops-ok',
896 # '-fdo-eta-reduction',
897 '-fdo-lambda-eta-expansion',
899 '-flet-to-case', # Aha! Only done after strictness analysis
900 $Oopt_PedanticBottoms,
901 $Oopt_MonadEtaExpansion,
902 $Oopt_MaxSimplifierIterations,
903 $Oopt_ShowSimplifierProgress,
908 # Case-liberation for -O2. This should be after
909 # strictness analysis and the simplification which follows it.
913 # : "-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 ]" ),
915 # Final clean-up simplification:
920 '-ffloat-lets-exposing-whnf',
921 '-ffloat-primops-ok',
925 # '-fdo-eta-reduction',
926 '-fdo-lambda-eta-expansion',
929 '-fignore-inline-pragma', # **** NB!
930 $Oopt_FoldrBuildInline,
931 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
932 # but still do reductions if you see them!
933 $Oopt_PedanticBottoms,
934 $Oopt_MonadEtaExpansion,
935 $Oopt_MaxSimplifierIterations,
936 $Oopt_ShowSimplifierProgress,
941 #LATER: '-fcalc-inlinings2', -- pointless for 2.01
945 $Oopt_FinalStgProfilingMassage,
951 # SPECIAL FLAGS for -O2
953 '-fupdate-analysis', # virtually useless; relegated to -O2
960 Sort out what we're going to do about optimising. First, the @hsc@
961 flags and regular @cc@ flags to worry about:
963 if ( $OptLevel <= 0 ) {
965 # for this level, we tell the parser -fignore-interface-pragmas
966 push(@HsC_flags, '-fignore-interface-pragmas');
967 # and tell the compiler not to produce them
968 push(@HsC_flags, '-fomit-interface-pragmas');
970 &add_Hsc_flags( @HsC_minusNoO_flags );
971 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
973 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
975 &add_Hsc_flags( @HsC_minusO_flags );
976 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
977 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
978 # but it *is* useful in compiling the garbage collector.
980 } else { # -Ofile, then...
982 &add_Hsc_flags( @HsC_minusO3_flags );
983 push(@HsC_flags, $Oopt_FinalStgProfilingMassage) if $Oopt_FinalStgProfilingMassage;
985 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
988 } # setupOptimiseFlags
992 %************************************************************************
994 \subsection{Check for consistency, etc.}
996 %************************************************************************
998 Sort out @$BuildTag@, @$PROFing@, @$PARing@,
999 @$GRANing@, @$TICKYing@:
1001 sub setupBuildFlags {
1004 # PROFILING stuff after argv mangling:
1006 # warn about any scc exprs found (in case scc used as identifier)
1007 push(@HsP_flags, '-W');
1009 # add -auto sccs even if not profiling !
1010 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
1013 push(@HsC_flags, $PROFauto) if $PROFauto;
1014 push(@HsC_flags, $PROFcaf) if $PROFcaf;
1015 push(@HsC_flags, $PROFdict) if $PROFdict;
1017 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
1019 # Ignore user sccs when auto annotating, but warn when doing so.
1020 $PROFignore_scc = '-W' if $PROFauto;
1022 push(@HsP_flags, (($PROFignore_scc) ? $PROFignore_scc : '-S'));
1024 #if ( $BuildTag ne '' ) {
1025 # local($b) = $BuildDescr{$BuildTag};
1026 # if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
1027 # if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
1028 # if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
1030 # # ok to have a user-way profiling build
1031 # # eval the profiling opts ... but leave user-way BuildTag
1032 # if ($PROFing eq 'p') { &processArgs(split(' ', $SetupOpts{'_p'})); } # eval($EvaldSetupOpts{'_p'}); }
1034 if ( $PROFing eq 'p' ) {
1035 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
1036 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
1037 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
1040 } elsif ( $PARing eq 'p' ) {
1041 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
1042 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
1045 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
1046 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
1050 } elsif ( $GRANing eq 'g' ) {
1051 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
1054 } elsif ( $TICKYing eq 't' ) {
1060 After the sanity checks, add flags to the necessary parts of the driver pipeline:
1063 if ( $BuildTag ne '' ) { # something other than normal sequential...
1065 local($Tag) = "${BuildTag}";
1066 $Tag =~ s/_//; # move the underscore to the back
1068 $HscOut = '-C='; # must go via C
1069 &processArgs(split(' ', $SetupOpts{$BuildTag}));
1070 # eval($EvaldSetupOpts{$BuildTag});
1074 Decide what the consistency-checking options are in force for this run:
1077 $HsC_consist_options = "${BuildTag},${DEBUGging}";
1078 $Cc_consist_options = "${BuildTag},${DEBUGging}";
1081 # Funny place to put it, but why not.
1083 if ( $HiSuffix_prelude eq '' ) {
1085 if ($CompilingPrelude) {
1086 $HiSuffix_prelude = "$HiSuffix" if $CompilingPrelude;
1088 local($Tag) = "${BuildTag}";
1091 $Tag = "${Tag}_" if $Tag ne '';
1092 $HiSuffix_prelude="${Tag}hi";
1098 %************************************************************************
1100 \subsection{Add on machine-specific C-compiler flags}
1102 %************************************************************************
1104 Shove on magical machine-specific options. We use \tr{unshift} to
1105 stick them on the {\em front} of the arrays, so that ``later''
1106 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
1108 Note: a few ``always apply'' flags were set at the very beginning.
1113 if ($TargetPlatform =~ /^alpha-/) {
1114 unshift(@CcBoth_flags, ('-static'));
1116 } elsif ($TargetPlatform =~ /^hppa/) {
1117 unshift(@CcBoth_flags, ('-static'));
1119 # We don't put in '-mlong-calls', because it's only
1120 # needed for very big modules (sigh), and we don't want
1121 # to hobble ourselves further on all the other modules
1124 # [Dated comment (gcc-2.6.x?), -mlong-calls is no longer
1125 # a supported gcc HPPA flag]
1126 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
1127 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
1128 # (very nice, but too bad the HP /usr/include files don't agree.)
1130 } elsif ($TargetPlatform =~ /^i386-/) {
1131 # -fno-defer-pop : basically the same game as for m68k
1133 # -fomit-frame-pointer : *must* in .hc files; because we're stealing
1134 # the fp (%ebp) for our register maps.
1136 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1137 unshift(@CcRegd_flags_hc, '-fomit-frame-pointer');
1138 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1140 unshift(@CcBoth_flags, ('-DDONT_WANT_WIN32_DLL_SUPPORT')) if ($Static);
1142 } elsif ($TargetPlatform =~ /^m68k-/) {
1143 # -fno-defer-pop : for the .hc files, we want all the pushing/
1144 # popping of args to routines to be explicit; if we let things
1145 # be deferred 'til after an STGJUMP, imminent death is certain!
1147 # -fomit-frame-pointer : *don't*
1148 # It's better to have a6 completely tied up being a frame pointer
1149 # rather than let GCC pick random things to do with it.
1150 # (If we want to steal a6, then we would try to do things
1151 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1153 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1154 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1155 # maybe gives reg alloc a better time
1156 # also: -fno-defer-pop is not sufficiently well-behaved without it
1158 } elsif ($TargetPlatform =~ /^mips-/) {
1159 unshift(@CcBoth_flags, ('-static'));
1161 } elsif ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1162 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1163 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1164 } elsif ($TargetPlatform =~ /^sparc-/) {
1166 } # end of setupMachOpts
1169 %************************************************************************
1171 \subsection{Set up for warnings}
1173 %************************************************************************
1175 Several warnings are turned on by default. These are supposed to be
1176 the 'I'm pretty sure you've made a mistake here' kind of warnings.
1177 The rest are turned on by the -W and -Wall options, or individually
1178 via their -fwarn and -fno-warn flags.
1181 sub setupWarningFlags {
1182 &add_Hsc_flags( @StandardWarnings );
1186 Same unshifting magic, but for special linker flags.
1188 The configure script determines whether the object file symbol tables
1189 have a leading underscore, and sets @LeadingUnderscore@ accordingly.
1190 (The driver script `sees' the setting of the @LeadingUnderscore@
1191 by having the Makefile prepend it).
1195 local($uscore) = ( ${LeadingUnderscore} eq 'YES' ) ? '_' : '';
1198 (($Ld_main) ? ( '-u', "${uscore}Main_" . $Ld_main . '_closure' ) : ()));
1200 # things that are referenced by the RTS - make sure that we pull 'em in
1202 ( '-u', "${uscore}PrelBase_Izh_static_info"
1203 ,'-u', "${uscore}PrelBase_Czh_static_info"
1204 ,'-u', "${uscore}PrelBase_Fzh_static_info"
1205 ,'-u', "${uscore}PrelBase_Dzh_static_info"
1206 ,'-u', "${uscore}PrelAddr_Azh_static_info"
1207 ,'-u', "${uscore}PrelAddr_Wzh_static_info"
1208 ,'-u', "${uscore}PrelAddr_I64zh_static_info"
1209 ,'-u', "${uscore}PrelAddr_W64zh_static_info"
1210 ,'-u', "${uscore}PrelStable_StablePtr_static_info"
1211 ,'-u', "${uscore}PrelBase_Izh_con_info"
1212 ,'-u', "${uscore}PrelBase_Czh_con_info"
1213 ,'-u', "${uscore}PrelBase_Fzh_con_info"
1214 ,'-u', "${uscore}PrelBase_Dzh_con_info"
1215 ,'-u', "${uscore}PrelAddr_Azh_con_info"
1216 ,'-u', "${uscore}PrelAddr_Wzh_con_info"
1217 ,'-u', "${uscore}PrelAddr_I64zh_con_info"
1218 ,'-u', "${uscore}PrelAddr_W64zh_con_info"
1219 ,'-u', "${uscore}PrelStable_StablePtr_con_info"
1220 ,'-u', "${uscore}PrelBase_False_static_closure"
1221 ,'-u', "${uscore}PrelBase_True_static_closure"
1222 ,'-u', "${uscore}PrelPack_unpackCString_closure"
1223 ,'-u', "${uscore}PrelException_stackOverflow_closure"
1224 ,'-u', "${uscore}PrelException_heapOverflow_closure"
1226 if (!$NoHaskellMain) {
1227 unshift (@Ld_flags,'-u', "${uscore}PrelMain_mainIO_closure");
1229 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1230 # sometimes we have lots of toc entries...
1231 # unshift(@Ld_flags, ('-Xlinker -bbigtoc -Xlinker -bnoquiet'));
1232 unshift(@Ld_flags, ('-Xlinker -bbigtoc'));
1236 } # end of setupLinkOpts
1240 %************************************************************************
1242 \subsection{Set up include paths and system-library enslurpment}
1244 %************************************************************************
1246 Now that we know what garbage-collector, etc., are required, we can
1247 finalise our list of libraries to slurp through, and generally Get
1252 # default includes must be added AFTER option processing
1253 if ( ! $INSTALLING ) {
1254 push (@Include_dir, "$TopPwd/${CURRENT_DIR}/${GHC_INCLUDE_DIR}");
1256 push (@Include_dir, "$InstLibDirGhc/includes");
1257 push (@Include_dir, "$InstLibDirGhc/includes");
1259 } # end of setupIncPaths
1264 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1267 foreach $f (@SysLibrary) {
1268 next if $f =~ /_cbits/;
1269 $f .= $BuildTag if $f =~ /^-lHS/;
1272 # Push library HSrts, plus boring clib bit
1273 push(@SysLibrary, "-lHSrts${BuildTag}");
1276 # RTS compiled with cygwin32, uses the WinMM API
1277 # to implement the itimers, since cygwin.dll does not
1278 # support it. Only reqd. for `ways' that use itimers.
1280 push(@SysLibrary, '-lwinmm') if $TargetPlatform eq 'i386-unknown-cygwin32';
1282 # Push the pvm libraries
1283 if ($BuildTag eq '_mp') {
1284 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1285 push(@SysLibrary, "-L$pvmlib", '-lgpvm3', '-lpvm3');
1286 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1287 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1288 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1289 push(@SysLibrary, '-lsocket', '-lnsl');
1293 # Push the GNU multi-precision arith lib; and the math library
1295 # If this machine has GMP already installed, then we'll get the installed
1296 # lib here, because presumably the one in the tree won't have been built.
1298 if ($LibGmp eq 'not-installed') {
1299 push(@SysLibrary, "-lgmp");
1301 push(@SysLibrary, "-l$LibGmp");
1304 push(@SysLibrary, '-lm') if !( $TargetPlatform =~ /^.*(cygwin32|mingw32)$/ );
1307 %************************************************************************
1309 \subsection{Check that this system was built to do what we are asking}
1311 %************************************************************************
1313 Before continuing we check that the appropriate build is available.
1316 #die "$Pgm: no BuildAvail?? $BuildTag\n" if $BuildDescr{$BuildTag} eq '' ; # sanity
1318 if ( $BuildDescr{$BuildTag} eq '' ) {
1319 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1320 "' \"build\" is not available with your GHC setup.\n";
1321 print STDERR "(It was not configured for it at your site.)\n";
1322 print STDERR $ShortUsage;
1326 } # end of setupSyslibs
1330 %************************************************************************
1332 \subsection{Final miscellaneous setup bits before we start going}
1334 %************************************************************************
1336 Record largest specific heapsize, if any.
1338 sub setupHeapStackSize {
1339 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1340 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1341 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1342 push(@HsC_rts_flags, "-K$Specific_stk_size");
1346 If no input or link files seen, then we let 'em feed in stdin; this is
1347 mainly for debugging.
1351 if ($#Input_file < 0 && $#Link_file < 0) {
1352 @Input_file = ( '-' );
1354 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1355 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n" if -t;
1356 while (<STDIN>) { print INF $_; }
1357 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1362 Tell the world who we are, if they asked.
1364 print STDERR "${ProjectName}, version ${ProjectVersion}, patchlevel ${ProjectPatchLevel}\n"
1368 %************************************************************************
1370 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1372 %************************************************************************
1374 Process the input files; don't continue with linking if there are
1375 problems (global variable @$Status@ non-zero).
1377 foreach $ifile (@Input_file) {
1378 &ProcessInputFile($ifile);
1381 # don't link if there were errors...
1382 if ( $Status > 0 ) {
1383 print STDERR $ShortUsage;
1388 # Link if appropriate.
1389 &runLinker() if $Do_lnkr;
1391 # that... that's all, folks!
1393 exit $Status; # will still be 0 if all went well
1396 %************************************************************************
1398 \section[Driver-do-one-file]{How to process a single input file}
1400 %************************************************************************
1403 sub ProcessInputFile {
1404 local($ifile) = @_; # input file name
1405 local($ifile_root); # root of or basename of input file
1406 local($ofile_target); # ultimate output file we hope to produce
1407 # from input file (need to know for recomp
1408 # checking purposes)
1409 local($hifile_target);# ditto (but .hi file)
1410 local($ofile_c_stub_target);
1411 local($ofile_h_stub_target);
1414 Handle the weirdity of input from stdin.
1416 if ($ifile ne '-') {
1417 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1418 $ofile_target = # may be reset later...
1419 ($Specific_output_file ne '' && ! $Do_lnkr)
1420 ? $Specific_output_file
1421 : &odir_ify($ifile_root, 'o');
1422 $hifile_target= ($Specific_hi_file ne '')
1424 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1425 # NB: may change if $ifile_root isn't module name (??)
1426 ($ofile_c_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.c/;
1427 ($ofile_h_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.h/;
1429 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1430 $ifile_root = '_stdin';
1431 $ofile_target = '_stdout'; # gratuitous?
1432 $hifile_target= '_stdout'; # ditto?
1436 We need to decide what phases of the compilation system we will run
1437 over this file. The defaults are the ones established when processing
1438 flags. (That established what the last phase run for all files is.)
1440 We do the pre-recompilation-checker phases here; the rest later.
1444 Look at the suffix and decide what initial phases of compilation may
1445 be dropped off for this file. Also the rather boring business of
1446 which files are coming-in/going-out.
1448 Again, we'll do the post-recompilation-checker parts of this later.
1450 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1451 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1454 # names of the files to stuff between phases
1455 # defaults are temporaries
1456 local($in_lit2pgm) = $ifile;
1457 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1458 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1459 local($hsc_hi) = "$Tmp_prefix.hi";
1460 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1461 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1462 local($as_out) = $ofile_target;
1464 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
1466 # OK, let's strip off some literate junk..
1468 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
1470 $lit2pgm_hscpp = $ifile;
1476 # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas
1477 &check_for_source_options($lit2pgm_hscpp,$ifile);
1479 # Options found in the source file take a back seat, i.e., we scan
1480 # them first. Only process the command line again if source file
1481 # contained anything of interest *or* there's more than one
1482 # input file (we have to reset the options).
1484 if ( $#Input_file >= 0 || $#File_options >= 0) {
1485 #@File_options = (@File_options, @Cmd_opts);
1487 # Now process the command line
1488 &initDriverGlobals();
1489 &processArgs((@File_options,@Cmd_opts));
1490 print STDERR "\nEffective command line: " .
1491 join(' ',(@File_options,@Cmd_opts)) . "\n" if $Verbose;
1494 # Having got the effective command line scanned, set up
1495 # the various options in prep for some real work.
1497 # check the sanity of the BuildTag we're about to use,
1498 # and if needs be, add some more flags and setup to
1499 # the different phases.
1502 &setupOptimiseFlags();
1505 &setupWarningFlags();
1506 &setupHeapStackSize();
1509 # These two variables need to be set after the
1510 # command-line has been processed and the build options
1511 # have be seen set up. This is because command-line options
1512 # can control whether to compile vias C or not.
1514 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1516 : ( ($HscOut eq '-C=') ? 1 : 0 );
1517 local($do_as) = $Do_as;
1518 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1519 local($hsc_out_c_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.c" : "";
1520 local($hsc_out_h_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.h" : "";
1522 if ($Only_preprocess_hc) { # stop after having run $Cc -E
1525 if ($Only_preprocess_C) { # stop after having run $hscpp
1526 $do_hsc=0; $do_cc = 0; $do_as=0;
1527 } elsif ($ifile =~ /.lhs$/ || $ifile =~ /.hs$/ ) {
1529 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
1530 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1532 $hsc_out_c_stub = '';
1533 $hsc_out_h_stub = '';
1534 } elsif ($ifile =~ /\.c$/) {
1535 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1536 $hsc_out = $ifile; $is_hc_file = 0;
1537 $hsc_out_c_stub = '';
1538 $hsc_out_h_stub = '';
1539 } elsif ($ifile =~ /\.[sS]$/) {
1540 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
1542 } else { # don't know what it is, but nothing to do herein...
1543 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
1546 # hack to avoid running hscpp
1547 $HsCpp = $Cat if ! $Cpp_flag_set;
1549 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) if $do_hscpp;
1553 We now think about whether to run hsc/cc or not (when hsc produces .s
1554 stuff, it effectively takes the place of both phases).
1555 To get the output file name right: for each phase that we are {\em
1556 not} going to run, set its input (i.e., the output of its preceding
1557 phase) to @"$ifile_root.<suffix>"@.
1560 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
1563 # Warning issued if -keep-hc-file-too is used without
1564 # -fvia-C (or the equivalent)
1566 if ( $HscOut ne '-C=' && $Keep_hc_file_too ) {
1567 print STDERR "$Pgm: warning: Native code generator to be used, -keep-hc-file-too will be ignored\n";
1570 if (! $do_cc && ! $do_as) { # stopping after hsc
1571 $hsc_out = ($Specific_output_file ne '')
1572 ? $Specific_output_file
1573 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
1575 $ofile_target = $hsc_out; # reset
1578 if (! $do_as) { # stopping after gcc (or hsc)
1579 $cc_as = ($Specific_output_file ne '')
1580 ? $Specific_output_file
1581 : &odir_ify($ifile_root, ( $Only_preprocess_hc ) ? 'i' : 's');
1583 $ofile_target = $cc_as; # reset
1589 Now the Haskell compiler, C compiler, and assembler
1593 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
1594 $ofile_target, $hifile_target,
1595 $going_interactive);
1598 if (-f $hsc_out_h_stub) {
1599 &run_something("cp $hsc_out_h_stub $ofile_h_stub_target", 'Copy foreign export header file');
1602 if (-f $hsc_out_c_stub) {
1603 &run_something("cp $hsc_out_c_stub $ofile_c_stub_target", 'Copy foreign export C stubs');
1604 local ($hsc_out_s_stub);
1605 local ($hsc_out_o_stub);
1606 ($ofile_s_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$/\.s/;
1607 ($ofile_o_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$/\.o/;
1608 &runGcc (0, $ofile_c_stub_target, $ofile_s_stub_target);
1609 &runAs ($ofile_o_stub_target, $ofile_s_stub_target);
1611 # Bring the C stub protos into scope when compiling the .hc file.
1613 push (@CcInjects, "#include \"${hsc_out_h_stub}\"\n");
1614 # Hack - ensure that the stub .h file is included in the OPTIONS section
1615 # if the .hc file is saved.
1616 push (@File_options, "-#include \"${ofile_h_stub_target}\"\n");
1621 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
1622 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root) if ! $Only_preprocess_hc;
1625 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
1627 # save a copy of the .s file..
1628 &saveIntermediate($ifile_root , "s" , $cc_as) if ($do_as && $Keep_s_file_too);
1629 &runAs($as_out, $ifile_root) if $do_as;
1632 Finally, decide what to queue up for linker input.
1634 # tentatively assume we will eventually produce linker input:
1635 push(@Link_file, &odir_ify($ifile_root, 'o'));
1637 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
1639 if ( $ifile !~ /\.(lhs|hs|hc|c|s|a|S)$/ && $ifile !~ /_hc$/ ) {
1640 # There's sometimes confusion regarding .hi files; users
1641 # supplying them on the command line.
1642 if ( $ifile =~ /\.hi$/ ) {
1643 print STDERR "$Pgm: warning: found `$ifile' on command line; interface files should not be supplied here - ignoring it.\n";
1645 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n";
1647 # oops; we tentatively pushed the wrong thing; fix & do the right thing
1648 pop(@Link_file); push(@Link_file, $ifile);
1652 } # end of ProcessInputFile
1655 %************************************************************************
1657 \section[Driver-run-phases]{Routines to run the various phases}
1659 %************************************************************************
1663 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
1667 # Only add #line pragma if we're going to need it.
1668 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && " if ($Cpp_flag_set);
1669 $to_do .= "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
1671 push(@Files_to_tidy, $lit2pgm_hscpp );
1673 &run_something($to_do, 'literate pre-processor');
1679 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
1683 # Strictly speaking, echoing of the following line pragma is only required
1684 # on non-delit'ed input, as we've already added it during de-lit. However,
1685 # hscpp will then add a {-# LINE 1 "$lit2pgm_hsc" -} to the top of the file,
1686 # which is not very informative (but harmless). Hence, we uniformly have
1687 # {-# LINE 1 "$in_lit2pgm" #-} as the first line to all cpp'ed hsc input.
1689 $to_do = "echo '{-# LINE 1 \"$in_lit2pgm\" -}' > $hscpp_hsc && ";
1691 if ($HsCpp eq $Cat) {
1692 $to_do .= "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
1693 push(@Files_to_tidy, $hscpp_hsc );
1694 &run_something($to_do, 'Ineffective C pre-processor');
1696 local($includes) = '-I' . join(' -I',@Include_dir);
1697 $to_do .= "$HsCpp $Verbose @HsCpp_flags @HsSourceCppOpts $includes $lit2pgm_hscpp >> $hscpp_hsc";
1698 push(@Files_to_tidy, $hscpp_hsc );
1699 &run_something($to_do, 'Haskellised C pre-processor');
1702 if ( $Only_preprocess_C ) {
1703 $to_do = "$Cat $hscpp_hsc";
1704 &run_something($to_do, '');
1712 sub runHscAndProcessInterfaces {
1713 local($ifile, $hscpp_hsc, $ifile_root,
1714 $ofile_target, $hifile_target,
1715 $going_interactive) = @_;
1717 # $ifile is the original input file
1718 # $hscpp_hsc post-unlit, post-cpp, etc., input file
1719 # $ifile_root input filename minus suffix
1720 # $ofile_target the output file that we ultimately hope to produce
1721 # $hifile_target the .hi file ... (ditto)
1723 local($source_unchanged) = 1;
1725 # Check if the source file is up to date relative to the target; in
1726 # that case we say "source is unchanged" and let the compiler bail out
1727 # early if the import usage information allows it.
1729 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
1730 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
1732 # The informational messages below are now conditional on -v being set -- SOF
1733 if ( $ofile_target ne "_stdin.s" && ! -f $ofile_target ) {
1734 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n" if $Verbose;
1735 $source_unchanged = 0;
1738 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
1739 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
1741 if ( $hifile_target ne "_stdout" && ! -f $hifile_target ) {
1742 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n" if $Verbose;
1743 $source_unchanged = 0;
1746 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
1747 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
1749 if ( $ofile_target ne "_stdin.s" && $i_mtime > $o_mtime) {
1750 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n" if $Verbose;
1751 $source_unchanged = 0;
1754 # Tell the compiler which version we're using
1755 push(@HsC_flags, "-fhi-version=${ProjectVersionInt}");
1757 # So if source_unchanged is still "1", we pass on the good news to the compiler
1758 # The -recomp flag can disable this, forcing recompilation
1759 if ($Do_recomp_chkr && $source_unchanged) {
1760 push(@HsC_flags, '-fsource-unchanged');
1763 # Indicate whether we're static or not.
1764 # This will only ever
1765 push(@HsC_flags, '-static') if $Static;
1769 &runHsc($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive);
1771 # See if it bailed out early, saying nothing needed doing.
1772 # We work this out by seeing if it created an output .hi file
1774 if ( ! -f $hsc_hi && $ProduceHi !~ /-nohifile=/ ) {
1775 # Doesn't exist, so we bailed out early.
1776 # Tell the C compiler and assembler not to run
1777 $do_cc = 0; $do_as = 0;
1779 # Update dependency info, touch both object file and
1780 # interface file, so that the following invariant is
1783 # a dependent module's interface file should after recompilation
1784 # checking be newer than the interface files of its imports.
1786 # That is, if module A's interface file changes, then module B
1787 # (which import from A) needs to be checked.
1788 # If A's change does not affect B, which causes the compiler to bail
1789 # out early, we still need to touch the interface file of B. The reason
1790 # for this is that B may export A's interface.
1792 &run_something("touch $ofile_target",
1793 "Touch $ofile_target, to propagate dependencies") if $HscOut ne '-N=';
1794 &run_something("touch $hifile_target",
1795 "Touch $hifile_target, to propagate dependencies") if $ProduceHi =~ /-nohifile=/ ;
1799 # Didn't bail out early (new .hi file) so we thunder on
1801 # If non-interactive, heave in the consistency info at the end
1802 # NB: pretty hackish (depends on how $output is set)
1803 if ( ! $going_interactive ) {
1804 if ( $HscOut eq '-C=' ) {
1805 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
1807 } elsif ( $HscOut eq '-S=' ) {
1808 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
1809 $consist =~ s/,/./g;
1810 $consist =~ s/\//./g;
1811 $consist =~ s/-/_/g;
1812 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
1813 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
1815 &run_something($to_do, 'Pin on Haskell consistency info');
1819 # Interface-handling is important enough to live off by itself
1820 if ( $ProduceHi !~ /-nohifile=/ ) { # If we've produced one, process it.
1821 require('ghc-iface.prl') || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
1822 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
1824 # if we're going to split up object files,
1825 # we inject split markers into the .hc file now
1826 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
1827 &inject_split_markers ( $hsc_out );
1830 # save a copy of the .hc file, even if we are carrying on...
1831 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
1832 &saveIntermediate($ifile_root , "hc" , $hsc_out);
1842 local($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive) = @_;
1844 # prepend comma to HsP flags (so hsc can tell them apart...)
1845 foreach $a ( @HsP_flags ) { $a = ",$a" unless $a =~ /^,/; }
1847 &makeHiMap() unless $HiMapDone;
1848 push(@HsC_flags, "-himap=$HiIncludeString");
1850 # here, we may produce .hc/.s and/or .hi files
1851 local($output) = '';
1852 #@Files_to_tidy = ();
1854 if ( $going_interactive ) {
1855 # don't need .hi unless we're going to show it on stdout:
1856 $ProduceHi = '-nohifile=' if ! ($HiOnStdout || $Specific_hi_file ne '' );
1857 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
1860 # set up for producing output/.hi; note that flag twiddling
1861 # may mean that nothing will actually be produced:
1862 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out -F=$hsc_out_c_stub -FH=$hsc_out_h_stub";
1863 push(@Files_to_tidy, $hsc_hi, $hsc_out, $hsc_out_c_stub, $hsc_out_h_stub );
1865 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
1866 if ( $CollectingGCstats ) {
1867 push(@HsC_rts_flags, "-S$ifile_root.stat");
1868 push(@Files_to_tidy, "$ifile_root.stat");
1871 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
1872 # emit nofibbish time/bytes-alloc stats to stderr;
1873 # see later .stat file post-processing
1874 print STDERR "warning: both -Rgc-stats and -Rghc-timing used, -Rghc-timing wins." if $CollectingGCstats;
1875 push(@HsC_rts_flags, "-s$Tmp_prefix.stat");
1876 push(@Files_to_tidy, "$Tmp_prefix.stat");
1880 if ($Specific_dump_file ne '') {
1881 $dump = "2>> $Specific_dump_file";
1882 $Using_dump_file = 1;
1886 # Win32 only: If the command processor used by system()
1887 # exec()s the application as an ordinary Win32 executable,
1888 # we're in trouble here, since the command line is likely
1889 # to be > 255 chars long. To work around this situation,
1890 # $HsC also understands `at-files', i.e., `@file' on the
1891 # command line will cause $HsC to add the contents of `file'
1892 # to the command line.
1894 # [ Note: support for `at-files' is not compiled in by default ]
1895 $cmd_line_opts_via_at_file=0;
1896 if ($cmd_line_opts_via_at_file) {
1898 local($to_do_opts) = "$Tmp_prefix.opts";
1899 open(OPTS, "> $Tmp_prefix.opts") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.opts\n");
1900 print OPTS "$dump @HsC_flags $CoreLint $StgLint $Verbose";
1902 $to_do = "$HsC @HsP_flags ,$hscpp_hsc \@$Tmp_prefix.opts $output +RTS @HsC_rts_flags";
1906 $to_do = "$HsC @HsP_flags ,$hscpp_hsc $dump @HsC_flags $CoreLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
1908 &run_something($to_do, 'Haskell compiler');
1910 # finish business w/ nofibbish time/bytes-alloc stats
1911 &process_ghc_timings() if $CollectGhcTimings;
1915 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
1916 of (module-name, pathname) pairs, one per line, separated by a space.
1919 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1923 # collect in %HiMap; write later; also used elsewhere in driver
1925 local($mod, $path, $d, $e);
1927 # reset the global variables:
1929 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1931 foreach $d ( @Import_dir ) {
1932 if ($HiIncludeString) {
1933 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix}";
1935 $HiIncludeString = "$d%.${HiSuffix}";
1940 foreach $d ( @SysImport_dir ) {
1941 if ($HiIncludeString) {
1942 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix_prelude}";
1944 $HiIncludeString = "${d}%.${HiSuffix_prelude}";
1953 Invoke the 'linker' - either the standard linker or the one used to build
1959 local($libdirs) = '';
1961 # append last minute flags linker and consistency flags
1966 # glue them together:
1967 push(@UserLibrary_dir, @SysLibrary_dir);
1969 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1971 # for a linker, use an explicitly given one, or the going C compiler ...
1972 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1974 if ( ($Specific_output_file eq '') &&
1975 ($TargetPlatform eq 'i386-unknown-cygwin32') ) {
1976 $Specific_output_file = 'main.exe';
1977 print STDERR "Output file not specified, defaulting to \"main.exe\"\n";
1980 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1981 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1983 &prepareWin32DllLink(1);
1985 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $TopClosureFile $libdirs @UserLibrary @SysLibrary";
1986 &run_something($to_do, 'Linker');
1988 # finally, check the consistency info in the binary
1989 local($executable) = $Files_to_tidy[0];
1990 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1993 # dynamically load consistency-chking code; then do it.
1994 require('ghc-consist.prl')
1995 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1997 &chk_consistency_info ( $executable );
2000 # if PVM parallel stuff, we do truly weird things.
2001 # Essentially: (1) move the executable over to where PVM expects
2002 # to find it. (2) create a script in place of the executable
2003 # which will cause the program to be run, via SysMan.
2004 if ( $PARing eq 'p' ) {
2005 local($pvm_executable) = $executable;
2006 local($pvm_executable_base);
2008 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
2009 local($pwd) = `pwd`;
2011 $pwd =~ s/^\/tmp_mnt//;
2012 $pvm_executable = "$pwd/$pvm_executable";
2015 $pvm_executable =~ s|/|=|g; # make /s into =s
2016 $pvm_executable_base = $pvm_executable;
2018 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
2019 . "/$pvm_executable";
2021 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
2023 # OK, now create the magic script for "$executable"
2024 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
2025 print EXEC <<EOSCRIPT1;
2026 eval 'exec perl -S \$0 \${1+"\$@"}'
2027 if \$running_under_some_shell;
2028 # =!=!=!=!=!=!=!=!=!=!=!
2029 # This script is automatically generated: DO NOT EDIT!!!
2030 # Generated by Glasgow Haskell, version ${ProjectVersion} ${ProjectPatchLevel}
2032 \$pvm_executable = '$pvm_executable';
2033 \$pvm_executable_base = '$pvm_executable_base';
2034 \$SysMan = '$SysMan';
2037 print EXEC <<\EOSCRIPT2;
2038 # first, some magical shortcuts to run "commands" on the binary
2040 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
2042 system("$cmd $pvm_executable");
2046 # OK, really run it; process the args first
2047 $ENV{'PE'} = $pvm_executable_base;
2049 $nprocessors = 2; # the default
2053 # ToDo: handle --RTS
2054 args: while ($a = shift(@ARGV)) {
2055 if ( $a eq '+RTS' ) {
2057 } elsif ( $a eq '-RTS' ) {
2060 if ( $a eq '-d' && $in_RTS_args ) {
2062 } elsif ( $a =~ /^-N(\d+)/ && $in_RTS_args ) {
2065 push(@nonPVM_args, $a);
2069 local($return_val) = 0;
2070 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
2072 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
2075 close(EXEC) || die "Failed closing $executable\n";
2076 chmod 0755, $executable;
2080 sub createWin32DLL()
2084 # append last minute flags linker and consistency flags
2089 # glue them together:
2090 push(@UserLibrary_dir, @SysLibrary_dir);
2092 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
2094 &prepareWin32DllLink(0);
2096 local ($bld_dll) = "dllwrap";
2098 local ($output) = ($Specific_output_file ne '') ? "$Specific_output_file" : 'HSdll.dll';
2099 local ($output_dir);
2100 local ($output_file);
2101 local ($output_lib, $output_def);
2103 ($output_dir = $output) =~ s|(.*/)[^/]+$|$1|;
2104 $output_dir = "" if ($output_dir eq $output);
2105 ($output_file = $output) =~ s|.*/([^/]+)$|$1|;
2107 ($output_lib = $output_file) =~ s|(.+)\.[^\.]*$|${output_dir}lib$1_imp.a|;
2108 ($output_def = $output_file) =~ s|(.+)\.[^\.]*$|${output_dir}$1.def|;
2110 push (@Dll_flags, "-mno-cygwin --target=i386-mingw32") if ($TargetPlatform =~ /^.*mingw32$/);
2111 push (@Dll_flags, "--output-lib $output_lib");
2112 # If the "--def " option hasn't been supplied, assume everything
2113 # is going to be exported via the DLL.."
2114 if (!grep(/--def/, @Dll_flags)) {
2115 push (@Dll_flags, "--export-all --output-def $output_def");
2118 local($to_do) = "$bld_dll @Dll_flags -o $output @Link_file $libdirs @UserLibrary @SysLibrary";
2119 # Make sure the user sees this piece of magic.
2120 print STDERR "$to_do\n" if (!$Verbose);
2121 &run_something($to_do, 'DLL creator');
2124 sub prepareWin32DllLink ()
2126 local($linking_main) = @_;
2129 # Win32 DLLs - link with import libraries, not the real archives.
2131 if ( $TargetPlatform =~ /-mingw32$/ ) {
2134 # If the libraries have the form libHSfoo.a, we
2135 # transform that into libHSfoo_imp.a - the import
2136 # library of the DLL.
2138 foreach $a ( @SysLibrary ) {
2139 $a = "${a}_imp" if ($a =~ /^-lHS/);
2141 foreach $a ( @UserLibrary ) {
2142 $a = "${a}_imp" if ($a =~ /^-lHS/);
2144 push(@Link_file, ( $INSTALLING ) ? "$InstLibDirGhc/Main.o"
2145 : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/Main.o") if $linking_main;
2146 push(@Link_file, ( $INSTALLING ) ? "$InstLibDirGhc/PrelMain.o"
2147 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/PrelMain.o") if $linking_main;
2149 push(@Ld_flags, "-mno-cygwin");
2155 %************************************************************************
2157 \section[Driver-misc-utils]{Miscellaneous utilities}
2159 %************************************************************************
2161 %************************************************************************
2163 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
2165 %************************************************************************
2169 local($ofile,$def_suffix) = @_;
2171 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
2175 local($orig_file, $def_suffix) = @_;
2176 if ($Specific_output_dir eq '') { # do nothing
2177 &osuf_ify($orig_file, $def_suffix);
2179 local ($orig_file_only);
2180 ($orig_file_only = $orig_file) =~ s|.*/||;
2181 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
2188 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
2190 local($includes) = '-I' . join(' -I', @Include_dir);
2193 local($c_flags) = "@CcBoth_flags";
2194 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2196 $c_flags .= " -mno-cygwin" if ( $TargetPlatform =~ /-mingw32$/ );
2198 # "input" files to use that are not in some weird directory;
2199 # to help C compilers grok .hc files [ToDo: de-hackify]
2200 local($cc_help) = "ghc$$.c";
2201 local($cc_help_s) = "ghc$$.s";
2204 $s_output = (($is_hc_file && $DoAsmMangling) || $TargetPlatform =~ /^(powerpc|rs6000|hppa)/) ? $cc_as_o : $cc_as;
2205 $c_flags .= " @CcRegd_flags";
2206 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2208 # C compiler won't like the .hc extension. So we create
2209 # a tmp .c file which #include's the needful.
2210 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2211 if ( $is_hc_file ) {
2215 # user may have asked for #includes to be injected...
2216 print TMP @CcInjects if $#CcInjects >= 0;
2218 # Straight .c files may want to know that they're being used
2219 # with a particular version of GHC, so we define __GLASGOW_HASKELL__ for their benefit.
2220 print TMP "#define __GLASGOW_HASKELL__ ${ProjectVersionInt}\n";
2222 # heave in the consistency info
2223 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2225 print TMP "#include \"$hsc_out\"\n";
2226 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2228 # Don't redirect stderr into intermediate file if slamming output onto stdout (e.g., with -E)
2229 local($fuse_stderr) = "2>&1" if ! $Only_preprocess_hc;
2230 local($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 )";
2232 if ( $Only_preprocess_hc ) { # HACK ALERT!
2233 $to_do =~ s/ -S\b//g;
2235 push(@Files_to_tidy, $cc_help, $cc_help_s, $s_output );
2236 $PostprocessCcOutput = 1 if ! $Only_preprocess_hc; # hack, dear hack...
2237 &run_something($to_do, 'C compiler');
2238 $PostprocessCcOutput = 0;
2239 if ( $Only_preprocess_hc ) {
2240 system("$Cat $Tmp_prefix.ccout");
2242 unlink($cc_help, $cc_help_s);
2248 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2250 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2252 if ($is_hc_file && $DoAsmMangling) {
2253 # dynamically load assembler-fiddling code, which we are about to use:
2254 require('ghc-asm.prl')
2255 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2256 # post-process the assembler [.hc files only]
2257 &mangle_asm($cc_as_o, $cc_as);
2259 } elsif ($TargetPlatform =~ /^hppa/) {
2260 # minor mangling of non-threaded files for hp-pa only
2261 require('ghc-asm.prl')
2262 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2263 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2265 } elsif ($TargetPlatform =~ /^powerpc|^rs6000/) {
2266 # minor mangling of non-threaded files for powerpcs and rs6000s
2267 require('ghc-asm.prl')
2268 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-powerpc.prl!\n");
2269 &mini_mangle_asm_powerpc($cc_as_o, $cc_as);
2272 # save a copy of the .s file, even if we are carrying on...
2273 #if ($do_as && $Keep_s_file_too) {
2274 # &saveIntermediate($ifile_root , "s" , $cc_as);
2281 local($as_out, $ifile_root) = @_;
2283 local($asmblr) = ( $As ) ? $As : $CcRegd;
2285 # need to add the -I flags in case the file is going through cpp (.S files)
2286 local($includes) = '-I' . join(' -I', @Include_dir);
2288 if ( ! $SplitObjFiles ) {
2289 local($to_do) = "$asmblr -o $as_out -c @As_flags $includes $cc_as";
2290 push(@Files_to_tidy, $as_out );
2291 &run_something($to_do, 'Unix assembler');
2293 } else { # more complicated split-ification...
2295 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2297 # If -odir is used, great, just pin it in front of the
2298 # generated split file names. If it hasn't been set, we
2299 # snatch it from the ifile_root.
2303 if ( $Specific_output_dir eq '' ) {
2304 $Specific_output_dir = ${ifile_root};
2307 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2308 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2309 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2310 push(@Files_to_tidy, $split_out );
2312 &run_something($to_do, 'Unix assembler');
2318 %************************************************************************
2320 \subsection[Driver-run-something]{@run_something@: Run a phase}
2322 %************************************************************************
2326 local($str_to_do, $tidy_name) = @_;
2328 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2329 print STDERR "$str_to_do\n" if $Verbose;
2331 if ($Using_dump_file) {
2332 open(DUMP, ">> $Specific_dump_file")
2333 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2334 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2336 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2339 local($return_val) = 0;
2341 if ( length($str_to_do) > 4000) {
2342 # 4000 - on the random side, just like the *real* ARG_MAX
2345 # With some shells, command lines of this length may
2346 # very well cause trouble. To safeguard against this, we squirrel the
2347 # command into a file and exec that.
2348 local ($sh) = $ENV{'REAL_SHELL'};
2349 print STDERR "Backup plan A: saving cmd line in ${Tmp_prefix}.sh and executing that with $sh\n" if $Verbose;
2350 open (TEMP, "> ${Tmp_prefix}.sh") ||
2351 &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.sh'\n");
2352 print TEMP "$Time $str_to_do\n";
2354 &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.sh'\n");
2355 system("$sh $Tmp_prefix.sh");
2358 unlink "${Tmp_prefix}.sh";
2360 system("$Time $str_to_do");
2364 if ( $PostprocessCcOutput ) { # hack, continued
2365 open(CCOUT, "< $Tmp_prefix.ccout")
2366 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2368 next if /call-clobbered/;
2369 next if /control reaches end/;
2370 next if /from .*Stg\.h:/;
2371 next if /from ghc\d+.c:\d+:/;
2372 next if /: At top level:$/;
2373 next if /: In function \`.*\':$/;
2374 next if /\`ghc_cc_ID\' defined but not used/;
2377 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2380 if ($return_val != 0) {
2381 if ($Using_dump_file) {
2382 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2384 &tidy_up_and_die($return_val, '');
2386 $Using_dump_file = 0;
2390 %************************************************************************
2392 \subsection[Driver-ghc-timing]{Emit nofibbish GHC timings}
2394 %************************************************************************
2396 NB: nearly the same as in @runstdtest@ script.
2399 sub process_ghc_timings {
2400 local($StatsFile) = "$Tmp_prefix.stat";
2401 local($SysSpecificTiming) = 'ghc';
2403 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2404 local($max_live) = 0;
2405 local($tot_live) = 0; # for calculating residency stuff
2406 local($tot_samples) = 0;
2409 if (! /Gen:\s+0/ && ! /Minor/ && /^\s*\d+\s+\d+\s+(\d+)\s+\d+\.\d+/ ) {
2410 $max_live = $1 if $max_live < $1;
2414 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2416 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2417 $MaxResidency = $1; $ResidencySamples = $2;
2420 $GCs = $1 if /^\s*([0-9,]+) (collections? in generation 0|garbage collections? performed)/;
2422 if ( /^\s+([0-9]+)\s+Mb total memory/ ) {
2426 # The presence of -? in the following pattern is only there to
2427 # accommodate 0.29 && <= 2.05 RTS'
2428 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*-?(\d+\.\d\d)s elapsed\)/ ) {
2429 $InitTime = $1; $InitElapsed = $2;
2430 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2431 $MutTime = $1; $MutElapsed = $2;
2432 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2433 $GcTime = $1; $GcElapsed = $2;
2436 close(STATS) || die "Failed when closing $StatsFile\n";
2437 if ( $tot_samples > 0 ) {
2438 $ResidencySamples = $tot_samples;
2439 $MaxResidency = $max_live;
2440 $AvgResidency = int ($tot_live / $tot_samples) ;
2443 # warn about what we didn't find
2444 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2445 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2446 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2447 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2448 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2449 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2450 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2451 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2453 # things we didn't necessarily expect to find
2454 $MaxResidency = 0 unless defined($MaxResidency);
2455 $AvgResidency = 0 unless defined($AvgResidency);
2456 $ResidencySamples = 0 unless defined($ResidencySamples);
2459 $BytesAlloc =~ s/,//g;
2460 $MaxResidency =~ s/,//g;
2462 $InitTime =~ s/,//g;
2463 $InitElapsed =~ s/,//g;
2465 $MutElapsed =~ s/,//g;
2467 $GcElapsed =~ s/,//g;
2469 # print out what we found
2470 print STDERR "<<$SysSpecificTiming: ",
2471 "$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)",
2472 " :$SysSpecificTiming>>\n";
2479 %************************************************************************
2481 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2483 %************************************************************************
2487 local($to_do) = "\n$Rm $Tmp_prefix*";
2488 if ( $Tmp_prefix !~ /^\s*$/ ) {
2489 print STDERR "$to_do\n" if $Verbose;
2494 sub tidy_up_and_die {
2495 local($return_val, $msg) = @_;
2497 # delete any files to tidy
2498 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2499 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2503 exit (($return_val == 0) ? 0 : 1);
2507 %************************************************************************
2509 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2511 %************************************************************************
2513 Some command-line arguments take an argument, e.g.,
2514 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2515 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2516 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2518 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2519 gobble the second argument (and probably set the heapsize to something
2523 local(*Args, $option, $rest_of_arg) = @_;
2525 if ($rest_of_arg ne '') {
2526 return($rest_of_arg);
2527 } elsif ($#Args >= 0) {
2528 local($temp) = $Args[0]; shift(@Args);
2531 print STDERR "$Pgm: no argument following $option option\n";
2542 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2544 foreach $f ( @HsC_antiflags ) {
2545 return(0) if $flag eq $f;
2547 # foreach $f ( @HsC_flags ) {
2548 # return(0) if $flag eq $f;
2553 sub squashHscFlag { # pretty terrible
2557 foreach $f ( @HsC_flags ) {
2558 if ($flag eq $f) { $f = ''; }
2566 foreach $f ( @flags ) {
2567 push( @HsC_flags, $f ) if &isntAntiFlag($f);
2572 To add another system library, you'll need to augment the
2573 Supported_syslibs variable with name and info on your addition
2574 to the syslib family. The info bit consist of the following:
2576 - interface file directory
2577 see the misc or posix entry for how to distinguish
2578 between using installed and build tree directories.
2580 - directory location of archives
2582 - location of (way-independent) C support libs.
2583 not all libraries need this - if you don't, just
2584 give the empty string.
2585 - list of syslibs you depend on.
2587 - additional ghc command line flags that should be used.
2588 - additional C compiler command line flags that should be used.
2594 # Hash to keep track of
2595 %Syslibs_added = ();
2598 local($syslib) = @_;
2600 # Lifting this out of this sub brings it out of scope - why??
2601 %Supported_syslibs =
2603 [ # where to slurp interface files from
2605 ? "$InstLibDirGhc/imports/exts"
2606 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/exts"
2608 , # where to find the archive to use when linking
2611 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/exts"
2614 , '' # Syslib dependencies
2615 , '' # extra ghc opts
2616 , '' # extra cc opts
2617 , '' # extra ld opts
2621 [ # where to slurp interface files from
2623 ? "$InstLibDirGhc/imports/misc"
2624 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc"
2626 , # where to find the archive to use when linking
2629 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc"
2631 , # where to find the cbits archive to use when linking
2634 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc/cbits"
2636 , 'exts' # Syslib dependencies
2637 , '' # extra ghc opts
2638 , '' # extra cc opts
2639 , ( $TargetPlatform =~ /-solaris2$/ ? '-lnsl -lsocket' : '')
2642 [ # where to slurp interface files from
2644 ? "$InstLibDirGhc/imports/hbc"
2645 : "$TopPwd/CONTRIB/libraries/hbc/src"
2647 , # where to find the archive to use when linking
2650 : "$TopPwd/CONTRIB/libraries/src/hbc"
2652 , # where to find the cbits archive to use when linking
2655 : "$TopPwd/CONTRIB/libraries/hbc/cbits"
2657 , 'exts' # Syslib dependencies
2658 , '' # extra ghc opts
2659 , '' # extra cc opts
2663 [ # where to slurp interface files from
2665 ? "$InstLibDirGhc/imports/posix"
2666 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix"
2668 , # where to find the archive to use when linking
2671 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix"
2673 , # where to find the cbits archive to use when linking
2676 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix/cbits"
2678 , 'misc' # Syslib dependencies
2679 , '' # extra ghc opts
2680 , '' # extra cc opts
2681 , '' # extra ld opts
2684 [ # where to slurp interface files from
2686 ? "$InstLibDirGhc/imports/concurrent"
2687 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent"
2689 , # where to find the archive to use when linking
2692 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent"
2694 , '' # where to find the cbits archive to use when linking
2695 , '' # Syslib dependencies
2696 , '' # extra ghc opts
2697 , '' # extra cc opts
2698 , '' # extra ld opts
2701 [ # where to slurp interface files from
2703 ? "$InstLibDirGhc/imports/win32"
2704 : "$TopPwd/hslibs/win32/src"
2706 , # where to find the archive to use when linking
2709 : "$TopPwd/hslibs/win32/src"
2712 , 'exts' # Syslib dependencies
2713 , '' # extra ghc opts
2714 , '' # extra cc opts
2715 , '-luser32 -lgdi32' # extra ld opts
2718 [ # where to slurp interface files from
2720 ? "$InstLibDirGhc/imports/com"
2721 : "$TopPwd/hdirect/lib"
2723 , # where to find the archive to use when linking
2726 : "$TopPwd/hdirect/lib"
2729 , 'exts' # Syslib dependencies
2730 , '' # extra ghc opts
2731 , '' # extra cc opts
2732 , '-luser32 -lole32 -loleaut32 -ladvapi32'
2737 # check if it's supported..
2739 if ( !exists $Supported_syslibs{$syslib} ) {
2740 print STDERR "$Pgm: no such system library (-syslib): $syslib\n";
2745 # This check is here to avoid syslib loops from
2746 # spoiling the party. A side-effect of it is that
2747 # it disallows multiple mentions of a syslib on a command-line,
2748 # explicit *and* implicit ones (i.e., "-syslib exts -syslib misc"
2749 # is not equal to "-syslib exts -syslib misc -syslib exts",
2750 # which it needs to be)
2752 # Since our current collection of syslibs don't have any
2753 # loops, this test is disabled.
2755 # ToDo: loop avoidance scheme when the need arises
2757 #return if ( exists $Syslibs_added{$syslib} );
2759 $Syslibs_added{$syslib} = 1;
2761 local ($hi_dir, $lib_dir, $lib_cbits_dir,
2762 $syslib_deps, $syslib_ghc_opts,
2763 $syslib_cc_opts, $syslib_ld_opts) = @{ $Supported_syslibs{$syslib} };
2766 unshift(@SysImport_dir, $hi_dir);
2767 push(@SysLibrary_dir, $lib_dir);
2768 push(@SysLibrary_dir, $lib_cbits_dir) if ( $lib_cbits_dir ne '');
2770 push(@SysLibrary, "-lHS$syslib");
2771 push(@SysLibrary, "-lHS${syslib}_cbits") if ( $lib_cbits_dir ne '');
2772 push(@SysLibrary, $syslib_ld_opts) if ($syslib_ld_opts ne '');
2774 # Add on any extra dependencies.
2775 foreach $lib (split(' ',$syslib_deps)) {
2781 Source files may have {-# OPTIONS ... #-} pragmas at the top, containing
2782 command line options we want to append to collection of commands specified
2783 directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell
2784 file for any such pragmas:
2787 sub check_for_source_options {
2788 local($file,$ifile) = @_;
2789 local($comment_start,$comment_end);
2791 if ($ifile =~ /\.hc$/ ||
2794 $ifile =~ /_s$/ ) { # `Real' C intermediate
2795 $comment_start = "/\\*";
2796 $comment_end = "\\*/";
2797 } else { # Assume it is a file containing Haskell source
2798 $comment_start = "{-#";
2799 $comment_end = "#-}";
2802 open(FILE,$file) || return(1); # No big loss
2805 if ( /^${comment_start} OPTIONS (.*)${comment_end}$/ ) {
2806 # add the options found at the back of the command line.
2807 local(@entries) = split(/\s+/,$1);
2808 print STDERR "Found OPTIONS " . join(' ',@entries) . " in $file\n" if $Verbose;
2809 push(@File_options, @entries);
2811 elsif ( /^$/ ) { # ignore empty lines
2814 elsif ( /^#line.+$/ ) { # ignore comment lines (unused..ToDo: rm )
2817 elsif ( /^{-# LINE.+$/ ) { # ignore line pragmas
2820 else { # stop looking, something non-empty / not
2821 # ${comment_start} OPTIONS .. ${comment_end} encountered.
2822 close(FILE);return(0);
2831 We split the initial argv up into three arrays:
2837 the reason for doing so is to be able to deal
2838 with {-# OPTIONS #-} pragma in source files properly.
2844 arg: while($_ = $args[0]) {
2846 # sigh, we have to deal with these -option arg specially here.
2847 /^-(tmpdir|odir|ohi|o|isuf|osuf|hisuf|odump|syslib)$/ &&
2848 do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; };
2849 /^--?./ && do { push(@Cmd_opts, $_); next arg; };
2851 if (/\.([^_]+_)?[oa]$/) {
2852 push(@Link_file, $_);
2854 push(@Input_file, $_);
2857 # input files must exist:
2859 print STDERR "$Pgm: input file doesn't exist: $_\n";
2867 When saving an intermediate file (.hc or .s) away, we
2868 have to prefix any OPTIONS found in the original source file.
2871 sub saveIntermediate {
2872 local ($final,$suffix,$tmp)= @_ ;
2875 # $final -- root of where to park ${final}.${suffix}
2876 # $tmp -- temporary file where hsc put the intermediate file.
2878 # Delete the old file
2879 $to_do = "$Rm ${final}.${suffix}"; &run_something($to_do, "Removing old .${suffix} file");
2881 if ( $#File_options >= 0 ) { # OPTIONS found in Haskell source unit
2882 # Add OPTION comment to the top of the generated .${suffix} file
2883 open(TEMP, "> ${final}.${suffix}") || &tidy_up_and_die(1,"Can't open ${final}.${suffix}\n");
2884 print TEMP "/* OPTIONS " . join(' ',@File_options) . " */\n";
2886 print STDERR "Prepending OPTIONS: " . join(' ',@File_options) . " to ${final}.${suffix}\n" if $Verbose;
2888 $to_do = "$Cat $tmp >> ${final}.${suffix}";
2889 &run_something($to_do, "Saving copy of .${suffix} file");
2896 Command-line processor
2902 # can't use getopt(s); what we want is too complicated
2904 arg: while($_ = $Args[0]) {
2907 #---------- help -------------------------------------------------------
2908 if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; }
2910 #-----------version ----------------------------------------------------
2911 /^--version$/ && do { print STDERR "${ProjectName}, version ${ProjectVersion}, patchlevel ${ProjectPatchLevel}\n"; exit $Status; };
2913 #---------- verbosity and such -----------------------------------------
2914 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
2916 #---------- what phases are to be run ----------------------------------
2917 /^-(no-)?recomp/ && do { $Do_recomp_chkr = ($1 eq '') ? 1 : 0; next arg; };
2919 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
2920 # change the global default:
2921 # we won't run cat; we'll run the real thing
2923 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
2925 # stop after generating C
2927 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
2928 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
2930 # leave out actual C generation (debugging) [also turns off interface gen]
2933 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
2934 # _do_ generate an interface; usually used as: -noC -hi
2935 /^-hi-with-(.*)$/ && do { $HiOnStdout = 1; $HiWith .= " $1" ; $ProduceHi = '-hifile='; next arg; };
2936 # limit ourselves to outputting a particular section.
2938 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
2939 # don't generate an interface (even if generating C)
2941 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
2942 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
2943 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
2944 /^-keep-hi-diffs$/ && do { $Keep_HiDiffs = 1; next arg; };
2946 # show/disable diffs if the interface file changes
2948 /^-E$/ && do { push(@CcBoth_flags, '-E');
2949 $Only_preprocess_C = 1;
2950 $Do_as = 0; $Do_lnkr = 0; next arg; };
2951 # stop after preprocessing C
2952 /^-M$/ && do { $Only_generate_deps = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2953 # only generate dependency information.
2954 /^--mk-dll$/ && do { $Only_generate_dll = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2955 # Build a Win32 DLL (where supported).
2956 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
2957 # stop after generating assembler
2959 /^-c$/ && do { $Do_lnkr = 0; next arg; };
2960 # stop after generating .o files
2962 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
2963 # don't do consistency-checking after a link
2964 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
2966 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', '');
2967 $Tmp_prefix = "$Tmp_prefix/ghc$$";
2968 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
2970 # use an alternate directory for temp files
2972 #---------- redirect output --------------------------------------------
2974 # -o <file>; applies to the last phase, whatever it is
2975 # "-o -" sends it to stdout
2976 # if <file> has a directory component, that dir must already exist
2978 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', '');
2980 # Hack, of the worst sort: don't do validation of
2981 # odir argument if you're using -M (dependency generation).
2983 if ( ! $Only_generate_deps && ! -d $Specific_output_dir) {
2984 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
2989 /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', '');
2990 if ($Specific_output_file ne '-'
2991 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
2992 local($dir_part) = $1;
2993 if (! -d $dir_part) {
2994 print STDERR "$Pgm: no such directory: $dir_part\n";
3000 # NB: -isuf not documented yet (because it doesn't work yet)
3001 /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', '');
3002 if ($Isuffix =~ /\./ ) {
3003 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
3008 /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', '');
3009 if ($Osuffix =~ /\./ ) {
3010 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
3015 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
3016 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', '');
3017 if ($Specific_hi_file ne '-'
3018 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
3019 local($dir_part) = $1;
3020 if (! -d $dir_part) {
3021 print STDERR "$Pgm: no such directory: $dir_part\n";
3025 $ProduceHi='-hifile=';
3028 # The suffix to use when looking for interface files
3029 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', '');
3030 if ($HiSuffix =~ /\./ ) {
3031 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
3035 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', '');
3036 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
3037 local($dir_part) = $1;
3038 if (! -d $dir_part) {
3039 print STDERR "$Pgm: no such directory: $dir_part\n";
3045 #-------------- scc & Profiling Stuff ----------------------------------
3047 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
3049 /^-auto-dicts$/ && do {
3050 $PROFdicts = '-fauto-sccs-on-dicts';
3052 /^-auto-all$/ && do {
3053 $PROFauto = '-fauto-sccs-on-all-toplevs';
3056 $PROFauto = '-fauto-sccs-on-exported-toplevs';
3059 /^-caf-all/ && do { # generate individual CAF SCC annotations
3060 $PROFcaf = '-fauto-sccs-on-individual-cafs';
3063 /^-ignore-scc$/ && do {
3064 # forces ignore of scc annotations even if profiling
3065 $PROFignore_scc = '-W';
3068 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
3071 /^-unprof-scc-auto/ && do {
3072 # generate auto SCCs on top level bindings when not profiling.
3073 # Used to measure optimisation effects of presence of sccs.
3074 $UNPROFscc_auto = ( /-all/ )
3075 ? '-fauto-sccs-on-all-toplevs'
3076 : '-fauto-sccs-on-exported-toplevs';
3079 #--------- ticky/parallel ----------------------------------------------
3080 # we sort out the details a bit later on
3082 /^-gransim$/ && do { $GRANing = 'g'; &add_syslib('concurrent'); next arg; }; # GranSim
3083 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
3084 /^-parallel$/ && do { $PARing = 'p'; &add_syslib('concurrent'); next arg; }; # parallel Haskell
3086 #-------------- "user ways" --------------------------------------------
3088 (/^-user-setup-([a-oA-Z])$/ ) &&
3090 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
3092 local($stuff) = $UserSetupOpts{$BuildTag};
3093 local(@opts) = split(/\s+/, $stuff);
3095 # feed relevant ops into the arg-processing loop (if any)
3096 unshift(@Args, @opts) if $#opts >= 0;
3100 #---------- set search paths for libraries and things ------------------
3102 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
3103 # prepends the items to the list); -I is for including C .h files.
3105 /^-i$/ && do { @Import_dir = (); # import path cleared!
3106 @SysImport_dir = ();
3107 print STDERR "WARNING: import paths cleared by `-i'\n";
3110 /^-i(.*)/ && do { local(@new_items)
3111 = split( /:/, &grab_arg_arg(*Args,'-i', $1));
3112 unshift(@Import_dir, @new_items);
3115 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; };
3116 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; };
3117 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; };
3119 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1);
3120 &add_syslib($syslib);
3123 #=======================================================================
3124 # various flags that we can harmlessly send to one program or another
3125 # (we will later "reclaim" some of the compiler ones now sent to gcc)
3126 #=======================================================================
3128 #---------- this driver itself (ghc) -----------------------------------
3129 # these change what executable is run for each phase:
3130 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
3131 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
3132 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
3133 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
3134 /^-pgma(.*)$/ && do { $As = $1; next arg; };
3135 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
3136 /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; };
3138 #---------- the get-anything-through opts (all pgms) -------------------
3139 # these allow arbitrary option-strings to go to any phase:
3140 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
3141 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
3142 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
3143 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
3144 /^-optp(.*)$/ && do { push(@HsP_flags, $1); next arg; };
3145 /^-optcpp(.*)$/ && do { push(@Cpp_define, $1); $Only_preprocess_hc = ($1 eq "-E"); next arg; };
3146 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
3147 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
3148 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
3149 /^-optdll(.*)$/ && do { push(@Dll_flags, $1); next arg; };
3150 /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; };
3152 #---------- Haskell C pre-processor (hscpp) ----------------------------
3153 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; };
3154 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; };
3156 #---------- post-Haskell "assembler"------------------------------------
3157 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
3158 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
3160 #---------- Haskell compiler (hsc) -------------------------------------
3162 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
3163 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
3165 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
3166 /^-fignore-asserts$/ && do { push(@HsC_flags, $_); next arg; };
3168 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
3171 # have the compiler proper generate concurrent code,
3172 # really only used when you want to configure your own
3173 # special user compilation way.
3175 # (ditto for -fgransim, fscc-profiling, -fparallel and -fticky-ticky)
3177 /^-fscc-profiling$/ && do { push(@HsC_flags,$_); next arg; };
3178 /^-fticky-ticky$/ && do { push(@HsC_flags,$_); next arg; };
3179 /^-fgransim$/ && do { push(@HsC_flags,$_); next arg; };
3180 /^-fparallel$/ && do { push(@HsC_flags,$_); next arg; };
3182 /^-split-objs$/ && do {
3183 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|rs6000|sparc)-/ ) {
3185 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
3190 push(@HsC_flags, "-fglobalise-toplev-names");
3191 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
3193 require('ghc-split.prl')
3194 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
3198 /^-fno-asm-mangling$/ && do { $DoAsmMangling = 0; next arg; };
3200 /^-fallow-overlapping-instances$/ && do { push(@HsC_flags, $_); next arg; };
3201 /^-fallow-undecidable-instances$/ && do { push(@HsC_flags, $_); next arg; };
3203 && do { push(@HsC_flags, $_);
3204 push(@HsP_flags, '-N');
3206 # -fglasgow-exts implies -syslib exts
3207 &add_syslib('exts');
3212 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
3213 /^-fno-speciali[sz]e$/
3214 && do { $Oopt_DoSpecialise = ''; next arg; };
3216 /^-fcompiling-prelude$/ && do { $CompilingPrelude=1; push(@HsC_flags, $_); next arg; };
3218 # Now the foldr/build options, which are *on* by default (for -O).
3221 && do { $Oopt_FoldrBuild = 1;
3222 $Oopt_FB_Support = '-fdo-arity-expand';
3226 /^-fno-foldr-build$/
3227 && do { $Oopt_FoldrBuild = 0;
3228 $Oopt_FB_Support = '';
3231 /^-fno-foldr-build-rule$/
3232 && do { $Oopt_FoldrBuild = 0;
3235 /^-fno-enable-tech$/
3236 && do { $Oopt_FB_Support = '';
3239 /^-fno-snapback-to-append$/
3240 && do { $Oopt_FoldrBuildInline .= ' -fdo-not-fold-back-append ';
3243 # --------------- Renamer -------------
3246 /^-fno-prune-tydecls$/ && do { push(@HsC_flags, $_); next arg; };
3247 /^-fno-prune-instdecls$/ && do { push(@HsC_flags, $_); next arg; };
3251 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
3252 /^-fvia-[cC]$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
3257 && do { push(@HsC_flags, $_); next arg };
3259 /^-funfold-casms-in-hi-file$/
3260 && do { push(@HsC_flags, $_); next arg };
3262 /^(-fmax-simplifier-iterations)(.*)$/
3263 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2);
3266 /^-fno-pedantic-bottoms$/
3267 && do { $Oopt_PedanticBottoms = ''; next arg; };
3269 /^-fno-pre-inlining$/
3270 && do { push(@HsC_flags, $_); next arg };
3272 /^-fdo-monad-eta-expansion$/
3273 && do { $Oopt_MonadEtaExpansion = $_; next arg; };
3275 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
3276 && do { push(@HsC_flags, $_); next arg; };
3278 /^-funbox-strict-fields$/
3279 && do { push(@HsC_flags, $_); next arg; };
3281 # --------------- Warnings etc. ------
3283 /^-fwarn-(.*)$/ && do { push(@HsC_flags, $_); next arg; };
3285 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
3286 &squashHscFlag("-f$1");
3289 /^-W$/ && do { push(@HsC_flags, @MinusWOpts); next arg; };
3290 /^-Wall$/ && do { push(@HsC_flags, @MinusWallOpts); next arg; };
3291 /^(-Wnot|w)$/ && do { foreach (@Hsc_flags) {
3292 /^-fwarn-(.*)$/ && do { $_=''; };
3294 push(@HsC_antiflags, @StandardWarnings);
3297 # --------------- fun stuff ----------------
3299 /^-freport-compile$/ && do { push(@HsC_flags, $_); next arg; };
3301 # --------------- platform specific flags (for gcc mostly) ----------------
3303 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes,
3304 # for 2.6.x..?, does not apply for 2.7.2
3306 unshift(@CcBoth_flags, ( $_ ));
3309 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
3310 && do { # for GCC for SPARCs
3311 unshift(@CcBoth_flags, ( $_ ));
3314 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
3315 $StolenX86Regs = $1;
3318 #*************** ... and lots of debugging ones (form: -d* )
3320 # -d(no-)core-lint is done this way so it is turn-off-able.
3321 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
3322 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
3323 # Ditto for STG lint
3324 /^-dstg-lint/ && do { $StgLint = '-dstg-lint'; next arg; };
3325 /^-dno-stg-lint/ && do { $StgLint = ''; next arg; };
3327 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
3328 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
3329 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
3330 /^-dshow-rn-stats/ && do { push(@HsC_flags, $_); next arg; };
3331 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
3332 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
3333 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
3334 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
3336 #*************** ... and now all these -R* ones for its runtime system...
3338 /^-Rscale-sizes?(.*)/ && do {
3339 $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1);
3342 /^(-H|-Rmax-heapsize)(.*)/ && do {
3343 local($heap_size) = &grab_arg_arg(*Args,$1, $2);
3344 if ($heap_size =~ /(\d+)[Kk]$/) {
3345 $heap_size = $1 * 1000;
3346 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
3347 $heap_size = $1 * 1000 * 1000;
3348 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
3349 $heap_size = $1 * 1000 * 1000 * 1000;
3351 if ($heap_size <= 0) {
3352 print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n";
3353 $Specific_heap_size = 0;
3355 # if several heap sizes given, take the largest...
3356 } elsif ($heap_size >= $Specific_heap_size) {
3357 $Specific_heap_size = $heap_size;
3359 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n";
3363 /^(-K|Rmax-(stk|stack)size)(.*)/ && do {
3365 local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3);
3366 if ($stk_size =~ /(\d+)[Kk]$/) {
3367 $stk_size = $1 * 1000;
3368 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
3369 $stk_size = $1 * 1000 * 1000;
3370 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
3371 $stk_size = $1 * 1000 * 1000 * 1000;
3373 if ($stk_size <= 0) {
3374 print STDERR "$Pgm: resetting stack-size to zero!!! $stk_size\n";
3375 $Specific_stk_size = 0;
3377 # if several stack sizes given, take the largest...
3378 } elsif ($stk_size >= $Specific_stk_size) {
3379 $Specific_stk_size = $stk_size;
3381 print STDERR "$Pgm: ignoring stack-size-setting option ($flag $stk_size)...not the largest seen\n";
3385 /^-Rgc-stats$/ && do { $CollectingGCstats++;
3386 # the two RTSs do this diff ways; we will try to compensate
3389 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
3391 #---------- C high-level assembler (gcc) -------------------------------
3392 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
3394 # -dgcc-lint is a useful way of making GCC very fussy.
3395 # From alan@spri.levels.unisa.edu.au (Alan Modra).
3396 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
3397 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
3398 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
3400 # inject "#include <wurble>" into the compiler's C output!
3402 /^-#include(.*)/ && do {
3403 local($to_include) = &grab_arg_arg(*Args,'-#include', $1);
3404 push(@CcInjects, "#include $to_include\n");
3407 #---------- Linker (gcc, really) ---------------------------------------
3409 /^-static$/ && do { $Static=1; push(@Ld_flags, $_); next arg; };
3410 /^-no-hs-main$/ && do { $NoHaskellMain=1; next arg; };
3412 #---------- mixed cc and linker magic ----------------------------------
3413 # this optimisation stuff is finally sorted out later on...
3415 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
3417 /^-O[1-2]?$/ && do {
3418 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
3419 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
3421 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
3424 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
3426 /^-Ofile(.*)/ && do {
3428 local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1);
3429 @HsC_minusO3_flags = ();
3431 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
3434 s/\#.*//; # death to comments
3435 s/[ \t]+//g; # death to whitespace
3436 next if /^$/; # ditto, blank lines
3437 s/([()*{}])/\\$1/g; # protect shell metacharacters
3439 push(@CcBoth_flags, $1);
3441 push(@HsC_minusO3_flags, $_);
3447 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
3448 # in the consistency info
3452 #---------- linking .a file --------------------------------------------
3454 /^-Main(.*)/ && do {
3455 # specifies main or mainPrimIO to be linked
3459 #---------- catch unrecognized flags -----------------------------------
3462 print STDERR "$Pgm: unrecognised option: $_\n";
3468 } # end of processArgs