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_UsageSPInf = ''; # Off by default
235 $Oopt_ShowSimplifierProgress = '';
236 } # end of setupOptFlags
238 # Assign defaults to these right away.
242 Things to do with C compilers/etc:
244 (added -Wimplicit: implicit prototypes cause very hard-to-find
245 problems, so I'm turing on the warnings -- SDM 4/5/98)
248 $CcRegd = $GHC_OPT_HILEV_ASM;
249 @CcBoth_flags = ('-S','-Wimplicit'); # flags for *any* C compilation
253 # those for all files,
254 # those only for .c files;
255 # those only for .hc files
258 @CcRegd_flags_c = ();
259 @CcRegd_flags_hc = ();
261 $As = ''; # "assembler" is normally GCC
264 $Lnkr = ''; # "linker" is normally GCC
268 # 'nm' is used for consistency checking (ToDo: mk-world-ify)
269 # ToDo: check the OS or something ("alpha" is surely not the crucial question)
270 $Nm = ($TargetPlatform =~ /^alpha-/) ? 'nm -B' : 'nm';
273 Warning packages that are controlled by -W and -Wall. The 'standard'
274 warnings that you get all the time are
276 -fwarn-overlapping-patterns
277 -fwarn-missing-methods
278 -fwarn-duplicate-exports
280 these are turned off by -Wnot.
283 @StandardWarnings = ('-fwarn-overlapping-patterns',
284 '-fwarn-missing-methods',
285 '-fwarn-duplicate-exports');
286 @MinusWOpts = (@StandardWarnings,
287 '-fwarn-incomplete-patterns',
288 '-fwarn-unused-binds',
289 '-fwarn-unused-imports');
290 @MinusWallOpts = (@MinusWOpts,
291 '-fwarn-unused-matches',
292 '-fwarn-type-defaults',
293 '-fwarn-name-shadowing',
294 '-fwarn-missing-signatures');
297 What options \tr{-user-setup-a} turn into (user-defined ``packages''
299 of options). Note that a particular user-setup implies a particular
300 Prelude ({\em including} its interface file(s)).
302 $BuildTag = ''; # default is sequential build w/ Appel-style GC
304 %BuildDescr = (# system ways begin
305 '', 'normal sequential',
309 '_mp', "$WAY_mp_NAME",
310 '_mg', "$WAY_mg_NAME",
328 '_B', "$WAY_B_NAME" );
330 # these are options that are "fed back" through the option processing loop
334 '_a', "$WAY_a_HC_OPTS",
335 '_b', "$WAY_b_HC_OPTS",
336 '_c', "$WAY_c_HC_OPTS",
337 '_d', "$WAY_d_HC_OPTS",
338 '_e', "$WAY_e_HC_OPTS",
339 '_f', "$WAY_f_HC_OPTS",
340 '_g', "$WAY_g_HC_OPTS",
341 '_h', "$WAY_h_HC_OPTS",
342 '_i', "$WAY_i_HC_OPTS",
343 '_j', "$WAY_j_HC_OPTS",
344 '_k', "$WAY_k_HC_OPTS",
345 '_l', "$WAY_l_HC_OPTS",
346 '_m', "$WAY_m_HC_OPTS",
347 '_n', "$WAY_n_HC_OPTS",
348 '_o', "$WAY_o_HC_OPTS",
349 '_A', "$WAY_A_HC_OPTS",
350 '_B', "$WAY_B_HC_OPTS",
353 '_p', "$WAY_p_HC_OPTS",
354 '_t', "$WAY_t_HC_OPTS",
355 '_u', "$WAY_u_HC_OPTS",
356 '_mp', "$WAY_mp_HC_OPTS",
357 '_mg', "$WAY_mg_HC_OPTS");
361 Import/include directories (\tr{-I} options) are sufficiently weird to
362 require special handling.
365 @Import_dir = ('.'); #-i things
366 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
368 # where to look for interface files (system hi's, i.e., prelude and syslibs)
369 @SysImport_dir = ( $INSTALLING )
370 ? ( "$InstLibDirGhc/imports/std" )
371 : ( "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std" );
373 # We need to look in ghc/ and glaExts/ when searching for implicitly needed .hi files, but
374 # we should really *not* look there for explicitly imported modules.
376 $Haskell1Version = 5; # i.e., Haskell 1.4
379 # Cpp symbols defined when we're processing Haskell source.
382 ( "-D__HASKELL1__=$Haskell1Version"
383 , "-D__GLASGOW_HASKELL__=$ProjectVersionInt"
385 , "-D__CONCURRENT_HASKELL__"
388 @UserLibrary_dir= (); #-L things;...
389 @UserLibrary = (); #-l things asked for by the user
391 @SysLibrary_dir = ( ( $INSTALLING ) #-syslib things supplied by the system
393 : ( "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR"
394 , "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/gmp"
395 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std"
396 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std/cbits"
399 @SysLibrary = (); # will be built up as we go along
401 $TopClosureFile # defaults to 1.2 one; will be mangled later
403 # ( $INSTALLING) ? "$InstLibDirGhc/TopClosureXXXX.o"
404 # : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/main/TopClosureXXXX.o";
406 # make depend for Haskell
408 = ( $INSTALLING ) ? "$InstLibExecDirGhc/mkdependHS"
409 : "$TopPwd/$CURRENT_DIR/$GHC_UTILS_DIR/mkdependHS/mkdependHS";
411 @MkDependHS_flags = ();
413 # do_link flag should not be reset while rescanning the cmd-line.
415 $Specific_output_dir = ''; # set by -odir <dir>
416 $Specific_output_file = ''; # set by -o <file>; "-" for stdout
419 Function to initialise the per-compilation-unit globals that
420 are used to guide and control the invocation of the different phases.
423 sub initDriverGlobals {
425 # reset the following options:
426 # RTS flags to use while compiling
428 @HsP_flags = (); # these are the flags destined solely for
429 # the flex/yacc parser
434 The optimisations/etc to be done by the compiler are {\em normally}
435 expressed with a \tr{-O} (or \tr{-O2}) flag, or by its absence.
438 $OptLevel = 0; # no -O == 0; -O == 1; -O2 == 2; -Ofile == 3
439 $MinusO2ForC = 0; # set to 1 if -O2 should be given to C compiler
440 $StolenX86Regs = 4; # **HACK*** of the very worst sort
445 @Import_dir = ('.'); #-i things
446 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
451 We are given a list of files with various presumably-known suffixes
452 (unknown-suffix files go straight to the linker). For each file, we
453 begin by assuming that we'll run every phase over it. However: (1)
454 global flags (\tr{-c}, \tr{-S}, etc.) tell us not to run any phase
455 past a certain point; and (2) the file's suffix tells us what phase to
456 start with. Linking is weird and kept track of separately.
458 Here are the initial defaults applied to all files:
460 $Cpp_flag_set = 0; # (hack)
461 $Only_preprocess_C = 0; # pretty hackish
462 $Only_preprocess_hc = 0; # ditto
463 $Only_generate_deps = 0; # ""
464 $Only_generate_dll = 0;
465 $PostprocessCcOutput = 0;
468 # static = 0 => produce code for DLLs (when compiling & linking.)
470 $Static = 0 if ($EnableWin32DLLs eq 'YES');
472 # native code-gen or via C?
473 $HaveNativeCodeGen = $GhcWithNativeCodeGen;
474 $HscOut = '-C='; # '-C=' ==> .hc output; '-S=' ==> .s output; '-N=' ==> neither
476 if ($HaveNativeCodeGen ne 'YES') && $TargetPlatform =~ /^(alpha)-/;
477 # TEMP: disable x86 & Sparc if $HaveNativeCodeGen && $TargetPlatform =~ /^(i386|alpha|sparc)-/;
478 $ProduceHi = '-hifile=';
484 $CollectingGCstats = 0;
485 $CollectGhcTimings = 0;
486 $DEBUGging = ''; # -DDEBUG and all that it entails (um... not really)
487 $PROFing = ''; # set to p or e if profiling
488 $PROFgroup = ''; # set to group if an explicit -Ggroup specified
489 $PROFauto = ''; # set to relevant hsc flag if -auto or -auto-all
490 $PROFcaf = ''; # set to relevant hsc flag if -caf-all
491 $PROFdict = ''; # set to relevant hsc flag if -auto-dicts
492 $PROFignore_scc = ''; # set to relevant parser flag if explicit sccs ignored
493 $UNPROFscc_auto = ''; # set to relevant hsc flag if forcing auto sccs without profiling
494 $TICKYing = ''; # set to t if compiling for ticky-ticky profiling
495 $PARing = ''; # set to p if compiling for PAR
496 $GRANing = ''; # set to g if compiling for GRAN
497 $Specific_hi_file = ''; # set by -ohi <file>; "-" for stdout
498 $Specific_dump_file = ''; # set by -odump <file>; "-" for stdout
499 $Using_dump_file = 0;
501 $Osuffix = ''; # default: use the normal suffix for that kind of output
503 $HiSuffix_prelude = '';
505 $Do_recomp_chkr = 0; # don't use the recompilatio checker unless asked
506 $Do_cc = -1; # a MAGIC indeterminate value; will be set to 1 or 0.
509 $Keep_hc_file_too = 0;
510 $Keep_s_file_too = 0;
511 $UseGhcInternals = 0; # if 1, may use GHC* modules
513 $DoAsmMangling = 1; # on by default, off by -fno-asm-mangling
515 $Dump_parser_output = 0;
517 $Dump_asm_splitting_info = 0;
518 $NoImplicitPrelude = 0;
519 # 1 => don't tell the linker to hoist in PrelMain.Main, as an
520 # external main is provided instead.
523 } # end of initDriverGlobals (Sigh)
525 # we split the argv passed to the driver into three:
530 # and files to be linked...
536 # cmd line options prefixing the unit we're compiling
541 We inject consistency-checking information into \tr{.hc} files (both
542 when created by the Haskell compiler and when compiled by the C
543 compiler), so that we can check that an executable is made from
544 consistently-built pieces. (The check is normally done just after
545 linking.) The checking is done by introducing/munging
546 \tr{what(1)}-style strings. Anyway, here are the relevant global
547 variables and their defaults:
549 $LinkChk = 0; # set to 0 if the link check should *not* be done
551 # major & minor version numbers; major numbers must always agree;
552 # minor disagreements yield a warning.
553 $HsC_major_version = $HscMajorVersion;
554 $HsC_minor_version = $HscMinorVersion;
555 $Cc_major_version = $CcMajorVersion;
556 $Cc_minor_version = $CcMinorVersion;
558 # options: these must always agree
559 $HsC_consist_options = ''; # we record, in this order:
560 # Build tag; debugging?
561 $Cc_consist_options = ''; # we record, in this order:
562 # Build tag; debugging?
565 %************************************************************************
567 \section[Driver-parse-argv]{Munge the command-line options}
569 %************************************************************************
571 Now slurp through the arguments.
574 &initDriverGlobals();
575 &splitCmdLine(@ARGV);
576 # Run through the cmd-line first time.
577 &processArgs(@Cmd_opts);
579 # Check to see if driver is only in the business
580 # to generate dependencies
581 if ( $Status == 0 && $Only_generate_deps ) {
583 push (@MkDependHS_flags, "-o$Osuffix") if $Osuffix;
584 push (@MkDependHS_flags, "-s$BuildTag") if $BuildTag;
585 # They're not (currently) needed, but we need to quote any -#include options
586 foreach (@Cmd_opts) {
587 s/-#include.*$/'$&'/g;
589 local($to_do) = "$MkDependHS @MkDependHS_flags @HsSourceCppOpts -- @Cmd_opts -- @Input_file" ;
590 &run_something($to_do, 'Haskell dependencies');
594 # ..or just to construct a (Haskell) DLL.
595 if ( $Status == 0 && $Only_generate_dll && $EnableWin32DLLs ) {
601 # if there are several input files,
602 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
603 # (except if linking, of course)
605 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
606 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
607 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
608 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
609 print STDERR "\tPerhaps the -odir option will do what you want.\n";
614 # check for various pathological -o and -odir combinations...
615 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
616 if ($Specific_output_file eq '-') {
617 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
619 } else { # amalgamate...
620 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
621 # ToDo: check we haven't got a junk name now...
622 $Specific_output_dir = ''; # reset
626 # crash and burn if there were errors
628 print STDERR $ShortUsage;
633 %************************************************************************
635 \section[Driver-post-argv-mangling]{Setup after reading options}
637 %************************************************************************
639 %************************************************************************
641 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
643 %************************************************************************
645 We come now to the default ``wads of options'' that are turned on by
646 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
647 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
650 The user can also specify his/her own list of options in a file; in
651 that case, the work is already done (see stuff about @minusO3@,
654 GHC allows very precise control of what happens during a compilation.
655 Core-to-Core and STG-to-STG passes can be run in any order, as many
656 times as you like. Individual transformations can be turned on or
659 Sadly, however, there are some interdependencies \& Things You Must
660 Not Do. Here is the list.
664 \item[\tr{-fspecialise}:]
665 The specialiser must have dependency-analysed input; but if you run
666 the simplifier to do this, you must not let it toss away unused
667 bindings! (The typechecker conveys some specialisation info via
668 ``unused'' bindings...)
670 \item[\tr{-ffloat-inwards}:]
671 Floating inwards should be done before strictness analysis, because
672 the latter will give better results.
674 \item[\tr{-fstatic-args}:]
675 The static-arguments-transformation pass {\em must} have the
676 simplifier run right after it.
678 \item[\tr{-fcalc-inlinings[12]}:]
679 Not required, but there may be slight gains by re-simplifying after
680 this is done. (You could then \tr{-fcalc-inlinings} again, just for
683 \item[\tr{-ffull-laziness}:]
684 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
685 that's run. (Um, well, howzabout the simplifier just once more...)
690 \item[\tr{-fupdate-analysis}:]
691 It really really wants to be the last STG-to-STG pass that is run.
696 sub setupOptimiseFlags {
702 '-ffloat-lets-exposing-whnf',
703 '-ffloat-primops-ok',
706 # '-fdo-lambda-eta-expansion', # too complicated
708 # '-flet-to-case', # no strictness analysis, so...
709 $Oopt_PedanticBottoms,
710 # $Oopt_MonadEtaExpansion, # no thanks
712 # These two work fine, if you really want no simplification at all,
713 # for bizarre test reasons. But you get really terrible code if you use them,
714 # for example: let x = e in x
715 # with dozens of redundant thunks etc. So I'm leaving them out.
717 # '-fsimpl-uf-use-threshold0',
718 # '-fessential-unfoldings-only',
721 # The presence of -fclone-binds is *temporary* to work around
722 # the fact that the desugarer in 3.0{2.3} does generate
723 # bindings with identical ids, and the type checker doesn't perform
724 # properly cloned type substitutions. Instead, we make sure that all
725 # binders are cloned first time through the simplifier.
727 # Will be properly fixed in the `new compiler` I hear, at which point
728 # the cloning can be turned off here.
733 $Oopt_MaxSimplifierIterations,
734 $Oopt_ShowSimplifierProgress,
737 # '-ffull-laziness', # removed 95/04 WDP following Andr\'e's lead
739 $Oopt_FinalStgProfilingMassage
742 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
744 '-fdo-eta-reduction',
746 # initial simplify: mk specialiser happy: minimum effort please
750 '-fkeep-spec-pragma-ids', # required before specialisation
752 # I don't understand why we want -fessential-unfoldings-only here
753 # If we have it, the following nasty thing happens:
757 # where "*" means exported.
758 # In the essential-unfoldings pass we still substitute f for g
759 # but we don't substitute E for f first. So we get
763 # The g=f will get reverse-substituted later, but it's untidy. --SLPJ
765 # SDM: Here's why it's necessary.
767 # If we unfold in the first pass before the specialiser is run
768 # we miss opportunities for specialisation because eg. wrappers
769 # have been inlined for specialisable functions.
771 # This shows up in PrelArr.lhs - the specialised instance for newArray
772 # calls the generic rangeSize, because rangeSize is strict and is
773 # replaced by its wrapper by the simplifier.
775 '-fessential-unfoldings-only',
776 '-fsimpl-uf-use-threshold0',
778 # See remark re: cloning in defn of minusnotO
782 '-fmax-simplifier-iterations1',
783 $Oopt_PedanticBottoms,
786 ($Oopt_DoSpecialise) ? (
790 $Oopt_UsageSPInf, # infer usage information here in case we need it later.
791 # (add more of these where you need them --KSW 1999-04)
793 '-fsimplify', # need dependency anal after specialiser ...
794 '[', # need tossing before calc-inlinings ...
796 '-ffloat-lets-exposing-whnf',
797 '-ffloat-primops-ok',
801 # '-fdo-eta-reduction',
802 '-fdo-lambda-eta-expansion',
804 $Oopt_PedanticBottoms,
805 $Oopt_MonadEtaExpansion,
806 $Oopt_MaxSimplifierIterations,
807 $Oopt_ShowSimplifierProgress,
809 # The presence of -fclone-binds is *crucial* here as
810 # -ffull-laziness (which we're about to do next) floats
811 # bindings outwards, so we better make sure that this
812 # doesn't result in the floating out of bindings
813 # with identical uniques, i.e., -ffull-laziness needs
814 # to be preceeded by a simplifier pass with -fclone-binds
819 # ($Oopt_FoldrBuildWW) ? (
820 # '-ffoldr-build-ww-anal',
821 # '-ffoldr-build-worker-wrapper',
825 # '-ffloat-lets-exposing-whnf',
826 # '-ffloat-primops-ok',
830 # '-fdo-eta-reduction',
831 # '-fdo-lambda-eta-expansion',
833 # $Oopt_PedanticBottoms,
834 # $Oopt_MonadEtaExpansion,
835 # $Oopt_MaxSimplifierIterations,
836 # $Oopt_ShowSimplifierProgress,
840 # this pass-ordering sequence was agreed by Simon and Andr\'e
841 # (WDP 94/07, 94/11).
844 ($Oopt_FoldrBuild) ? (
845 '-ffoldr-build-on', # desugar list comprehensions for foldr/build
849 '-fignore-inline-pragma', # **** NB!
850 '-fdo-foldr-build', # NB
852 '-ffloat-lets-exposing-whnf',
853 '-ffloat-primops-ok',
857 # '-fdo-eta-reduction',
858 '-fdo-lambda-eta-expansion', # After full laziness
860 $Oopt_PedanticBottoms,
861 $Oopt_MonadEtaExpansion,
862 $Oopt_MaxSimplifierIterations,
863 $Oopt_ShowSimplifierProgress,
872 '-ffloat-lets-exposing-whnf',
873 '-ffloat-primops-ok',
877 '-fdo-eta-reduction',
878 '-fdo-lambda-eta-expansion',
880 ($Oopt_FoldrBuildInline),
881 # you need to inline foldr and build
882 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
883 # but do reductions if you see them!
884 $Oopt_PedanticBottoms,
885 $Oopt_MonadEtaExpansion,
886 $Oopt_MaxSimplifierIterations,
887 $Oopt_ShowSimplifierProgress,
896 '-ffloat-lets-exposing-whnf',
897 '-ffloat-primops-ok',
901 # '-fdo-eta-reduction',
902 '-fdo-lambda-eta-expansion',
904 '-flet-to-case', # Aha! Only done after strictness analysis
905 $Oopt_PedanticBottoms,
906 $Oopt_MonadEtaExpansion,
907 $Oopt_MaxSimplifierIterations,
908 $Oopt_ShowSimplifierProgress,
913 # Case-liberation for -O2. This should be after
914 # strictness analysis and the simplification which follows it.
918 # : "-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 ]" ),
920 # Final clean-up simplification:
925 '-ffloat-lets-exposing-whnf',
926 '-ffloat-primops-ok',
930 # '-fdo-eta-reduction',
931 '-fdo-lambda-eta-expansion',
934 '-fignore-inline-pragma', # **** NB!
935 $Oopt_FoldrBuildInline,
936 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
937 # but still do reductions if you see them!
938 $Oopt_PedanticBottoms,
939 $Oopt_MonadEtaExpansion,
940 $Oopt_MaxSimplifierIterations,
941 $Oopt_ShowSimplifierProgress,
946 #LATER: '-fcalc-inlinings2', -- pointless for 2.01
950 $Oopt_FinalStgProfilingMassage,
956 # SPECIAL FLAGS for -O2
958 '-fupdate-analysis', # virtually useless; relegated to -O2
965 Sort out what we're going to do about optimising. First, the @hsc@
966 flags and regular @cc@ flags to worry about:
968 if ( $OptLevel <= 0 ) {
970 # for this level, we tell the parser -fignore-interface-pragmas
971 push(@HsC_flags, '-fignore-interface-pragmas');
972 # and tell the compiler not to produce them
973 push(@HsC_flags, '-fomit-interface-pragmas');
975 &add_Hsc_flags( @HsC_minusNoO_flags );
976 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
978 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
980 &add_Hsc_flags( @HsC_minusO_flags );
981 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
982 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
983 # but it *is* useful in compiling the garbage collector.
985 } else { # -Ofile, then...
987 &add_Hsc_flags( @HsC_minusO3_flags );
988 push(@HsC_flags, $Oopt_FinalStgProfilingMassage) if $Oopt_FinalStgProfilingMassage;
990 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
993 } # setupOptimiseFlags
997 %************************************************************************
999 \subsection{Check for consistency, etc.}
1001 %************************************************************************
1003 Sort out @$BuildTag@, @$PROFing@, @$PARing@,
1004 @$GRANing@, @$TICKYing@:
1006 sub setupBuildFlags {
1009 # PROFILING stuff after argv mangling:
1011 # warn about any scc exprs found (in case scc used as identifier)
1012 push(@HsP_flags, '-W');
1014 # add -auto sccs even if not profiling !
1015 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
1018 push(@HsC_flags, $PROFauto) if $PROFauto;
1019 push(@HsC_flags, $PROFcaf) if $PROFcaf;
1020 push(@HsC_flags, $PROFdict) if $PROFdict;
1022 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
1024 # Ignore user sccs when auto annotating, but warn when doing so.
1025 $PROFignore_scc = '-W' if $PROFauto;
1027 push(@HsP_flags, (($PROFignore_scc) ? $PROFignore_scc : '-S'));
1029 #if ( $BuildTag ne '' ) {
1030 # local($b) = $BuildDescr{$BuildTag};
1031 # if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
1032 # if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
1033 # if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
1035 # # ok to have a user-way profiling build
1036 # # eval the profiling opts ... but leave user-way BuildTag
1037 # if ($PROFing eq 'p') { &processArgs(split(' ', $SetupOpts{'_p'})); } # eval($EvaldSetupOpts{'_p'}); }
1039 if ( $PROFing eq 'p' ) {
1040 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
1041 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
1042 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
1045 } elsif ( $PARing eq 'p' ) {
1046 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
1047 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
1050 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
1051 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
1055 } elsif ( $GRANing eq 'g' ) {
1056 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
1059 } elsif ( $TICKYing eq 't' ) {
1065 After the sanity checks, add flags to the necessary parts of the driver pipeline:
1068 if ( $BuildTag ne '' ) { # something other than normal sequential...
1070 local($Tag) = "${BuildTag}";
1071 $Tag =~ s/_//; # move the underscore to the back
1073 $HscOut = '-C='; # must go via C
1074 &processArgs(split(' ', $SetupOpts{$BuildTag}));
1075 # eval($EvaldSetupOpts{$BuildTag});
1079 Decide what the consistency-checking options are in force for this run:
1082 $HsC_consist_options = "${BuildTag},${DEBUGging}";
1083 $Cc_consist_options = "${BuildTag},${DEBUGging}";
1086 # Funny place to put it, but why not.
1088 if ( $HiSuffix_prelude eq '' ) {
1090 if ($CompilingPrelude) {
1091 $HiSuffix_prelude = "$HiSuffix" if $CompilingPrelude;
1093 local($Tag) = "${BuildTag}";
1096 $Tag = "${Tag}_" if $Tag ne '';
1097 $HiSuffix_prelude="${Tag}hi";
1103 %************************************************************************
1105 \subsection{Add on machine-specific C-compiler flags}
1107 %************************************************************************
1109 Shove on magical machine-specific options. We use \tr{unshift} to
1110 stick them on the {\em front} of the arrays, so that ``later''
1111 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
1113 Note: a few ``always apply'' flags were set at the very beginning.
1118 if ($TargetPlatform =~ /^alpha-/) {
1119 unshift(@CcBoth_flags, ('-static'));
1121 } elsif ($TargetPlatform =~ /^hppa/) {
1122 unshift(@CcBoth_flags, ('-static'));
1124 # We don't put in '-mlong-calls', because it's only
1125 # needed for very big modules (sigh), and we don't want
1126 # to hobble ourselves further on all the other modules
1129 # [Dated comment (gcc-2.6.x?), -mlong-calls is no longer
1130 # a supported gcc HPPA flag]
1131 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
1132 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
1133 # (very nice, but too bad the HP /usr/include files don't agree.)
1135 } elsif ($TargetPlatform =~ /^i386-/) {
1136 # -fno-defer-pop : basically the same game as for m68k
1138 # -fomit-frame-pointer : *must* in .hc files; because we're stealing
1139 # the fp (%ebp) for our register maps.
1141 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1142 unshift(@CcRegd_flags_hc, '-fomit-frame-pointer');
1143 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1145 unshift(@CcBoth_flags, ('-DDONT_WANT_WIN32_DLL_SUPPORT')) if ($Static);
1147 } elsif ($TargetPlatform =~ /^m68k-/) {
1148 # -fno-defer-pop : for the .hc files, we want all the pushing/
1149 # popping of args to routines to be explicit; if we let things
1150 # be deferred 'til after an STGJUMP, imminent death is certain!
1152 # -fomit-frame-pointer : *don't*
1153 # It's better to have a6 completely tied up being a frame pointer
1154 # rather than let GCC pick random things to do with it.
1155 # (If we want to steal a6, then we would try to do things
1156 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1158 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1159 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1160 # maybe gives reg alloc a better time
1161 # also: -fno-defer-pop is not sufficiently well-behaved without it
1163 } elsif ($TargetPlatform =~ /^mips-/) {
1164 unshift(@CcBoth_flags, ('-static'));
1166 } elsif ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1167 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1168 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1169 } elsif ($TargetPlatform =~ /^sparc-/) {
1171 } # end of setupMachOpts
1174 %************************************************************************
1176 \subsection{Set up for warnings}
1178 %************************************************************************
1180 Several warnings are turned on by default. These are supposed to be
1181 the 'I'm pretty sure you've made a mistake here' kind of warnings.
1182 The rest are turned on by the -W and -Wall options, or individually
1183 via their -fwarn and -fno-warn flags.
1186 sub setupWarningFlags {
1187 &add_Hsc_flags( @StandardWarnings );
1191 Same unshifting magic, but for special linker flags.
1193 The configure script determines whether the object file symbol tables
1194 have a leading underscore, and sets @LeadingUnderscore@ accordingly.
1195 (The driver script `sees' the setting of the @LeadingUnderscore@
1196 by having the Makefile prepend it).
1200 local($uscore) = ( ${LeadingUnderscore} eq 'YES' ) ? '_' : '';
1203 (($Ld_main) ? ( '-u', "${uscore}Main_" . $Ld_main . '_closure' ) : ()));
1205 # things that are referenced by the RTS - make sure that we pull 'em in
1207 ( '-u', "${uscore}PrelBase_Izh_static_info"
1208 ,'-u', "${uscore}PrelBase_Czh_static_info"
1209 ,'-u', "${uscore}PrelBase_Fzh_static_info"
1210 ,'-u', "${uscore}PrelBase_Dzh_static_info"
1211 ,'-u', "${uscore}PrelAddr_Azh_static_info"
1212 ,'-u', "${uscore}PrelAddr_Wzh_static_info"
1213 ,'-u', "${uscore}PrelAddr_I64zh_static_info"
1214 ,'-u', "${uscore}PrelAddr_W64zh_static_info"
1215 ,'-u', "${uscore}PrelStable_StablePtr_static_info"
1216 ,'-u', "${uscore}PrelBase_Izh_con_info"
1217 ,'-u', "${uscore}PrelBase_Czh_con_info"
1218 ,'-u', "${uscore}PrelBase_Fzh_con_info"
1219 ,'-u', "${uscore}PrelBase_Dzh_con_info"
1220 ,'-u', "${uscore}PrelAddr_Azh_con_info"
1221 ,'-u', "${uscore}PrelAddr_Wzh_con_info"
1222 ,'-u', "${uscore}PrelAddr_I64zh_con_info"
1223 ,'-u', "${uscore}PrelAddr_W64zh_con_info"
1224 ,'-u', "${uscore}PrelStable_StablePtr_con_info"
1225 ,'-u', "${uscore}PrelBase_False_static_closure"
1226 ,'-u', "${uscore}PrelBase_True_static_closure"
1227 ,'-u', "${uscore}PrelPack_unpackCString_closure"
1228 ,'-u', "${uscore}PrelException_stackOverflow_closure"
1229 ,'-u', "${uscore}PrelException_heapOverflow_closure"
1231 if (!$NoHaskellMain) {
1232 unshift (@Ld_flags,'-u', "${uscore}PrelMain_mainIO_closure");
1234 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1235 # sometimes we have lots of toc entries...
1236 # unshift(@Ld_flags, ('-Xlinker -bbigtoc -Xlinker -bnoquiet'));
1237 unshift(@Ld_flags, ('-Xlinker -bbigtoc'));
1241 } # end of setupLinkOpts
1245 %************************************************************************
1247 \subsection{Set up include paths and system-library enslurpment}
1249 %************************************************************************
1251 Now that we know what garbage-collector, etc., are required, we can
1252 finalise our list of libraries to slurp through, and generally Get
1257 # default includes must be added AFTER option processing
1258 if ( ! $INSTALLING ) {
1259 push (@Include_dir, "$TopPwd/${CURRENT_DIR}/${GHC_INCLUDE_DIR}");
1261 push (@Include_dir, "$InstLibDirGhc/includes");
1262 push (@Include_dir, "$InstLibDirGhc/includes");
1264 } # end of setupIncPaths
1269 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1272 foreach $f (@SysLibrary) {
1273 next if $f =~ /_cbits/;
1274 $f .= $BuildTag if $f =~ /^-lHS/;
1277 # Push library HSrts, plus boring clib bit
1278 push(@SysLibrary, "-lHSrts${BuildTag}");
1281 # RTS compiled with cygwin32, uses the WinMM API
1282 # to implement the itimers, since cygwin.dll does not
1283 # support it. Only reqd. for `ways' that use itimers.
1285 push(@SysLibrary, '-lwinmm') if $TargetPlatform eq 'i386-unknown-cygwin32';
1286 # Note: currently only tested with mingw, may cause conflicts when linking
1288 push(@SysLibrary, '-lwsock32') if ($TargetPlatform =~ /-(mingw32|cygwin32)$/);
1290 # Push the pvm libraries
1291 if ($BuildTag eq '_mp') {
1292 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1293 push(@SysLibrary, "-L$pvmlib", '-lgpvm3', '-lpvm3');
1294 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1295 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1296 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1297 push(@SysLibrary, '-lsocket', '-lnsl');
1301 # Push the GNU multi-precision arith lib; and the math library
1303 # If this machine has GMP already installed, then we'll get the installed
1304 # lib here, because presumably the one in the tree won't have been built.
1306 if ($LibGmp eq 'not-installed') {
1307 push(@SysLibrary, "-lgmp");
1309 push(@SysLibrary, "-l$LibGmp");
1312 push(@SysLibrary, '-lm') if !( $TargetPlatform =~ /^.*(cygwin32|mingw32)$/ );
1315 %************************************************************************
1317 \subsection{Check that this system was built to do what we are asking}
1319 %************************************************************************
1321 Before continuing we check that the appropriate build is available.
1324 #die "$Pgm: no BuildAvail?? $BuildTag\n" if $BuildDescr{$BuildTag} eq '' ; # sanity
1326 if ( $BuildDescr{$BuildTag} eq '' ) {
1327 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1328 "' \"build\" is not available with your GHC setup.\n";
1329 print STDERR "(It was not configured for it at your site.)\n";
1330 print STDERR $ShortUsage;
1334 } # end of setupSyslibs
1338 %************************************************************************
1340 \subsection{Final miscellaneous setup bits before we start going}
1342 %************************************************************************
1344 Record largest specific heapsize, if any.
1346 sub setupHeapStackSize {
1347 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1348 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1349 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1350 push(@HsC_rts_flags, "-K$Specific_stk_size");
1354 If no input or link files seen, then we let 'em feed in stdin; this is
1355 mainly for debugging.
1359 if ($#Input_file < 0 && $#Link_file < 0) {
1360 @Input_file = ( '-' );
1362 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1363 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n" if -t;
1364 while (<STDIN>) { print INF $_; }
1365 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1370 Tell the world who we are, if they asked.
1372 print STDERR "${ProjectName}, version ${ProjectVersion}, patchlevel ${ProjectPatchLevel}\n"
1376 %************************************************************************
1378 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1380 %************************************************************************
1382 Process the input files; don't continue with linking if there are
1383 problems (global variable @$Status@ non-zero).
1385 foreach $ifile (@Input_file) {
1386 &ProcessInputFile($ifile);
1389 # don't link if there were errors...
1390 if ( $Status > 0 ) {
1391 print STDERR $ShortUsage;
1396 # Link if appropriate.
1397 &runLinker() if $Do_lnkr;
1399 # that... that's all, folks!
1401 exit $Status; # will still be 0 if all went well
1404 %************************************************************************
1406 \section[Driver-do-one-file]{How to process a single input file}
1408 %************************************************************************
1411 sub ProcessInputFile {
1412 local($ifile) = @_; # input file name
1413 local($ifile_root); # root of or basename of input file
1414 local($ofile_target); # ultimate output file we hope to produce
1415 # from input file (need to know for recomp
1416 # checking purposes)
1417 local($hifile_target);# ditto (but .hi file)
1418 local($ofile_c_stub_target);
1419 local($ofile_h_stub_target);
1422 Handle the weirdity of input from stdin.
1424 if ($ifile ne '-') {
1425 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1426 $ofile_target = # may be reset later...
1427 ($Specific_output_file ne '' && ! $Do_lnkr)
1428 ? $Specific_output_file
1429 : &odir_ify($ifile_root, 'o');
1430 $hifile_target= ($Specific_hi_file ne '')
1432 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1433 # NB: may change if $ifile_root isn't module name (??)
1434 ($ofile_c_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.c/;
1435 ($ofile_h_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.h/;
1437 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1438 $ifile_root = '_stdin';
1439 $ofile_target = '_stdout'; # gratuitous?
1440 $hifile_target= '_stdout'; # ditto?
1444 We need to decide what phases of the compilation system we will run
1445 over this file. The defaults are the ones established when processing
1446 flags. (That established what the last phase run for all files is.)
1448 We do the pre-recompilation-checker phases here; the rest later.
1452 Look at the suffix and decide what initial phases of compilation may
1453 be dropped off for this file. Also the rather boring business of
1454 which files are coming-in/going-out.
1456 Again, we'll do the post-recompilation-checker parts of this later.
1458 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1459 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1462 # names of the files to stuff between phases
1463 # defaults are temporaries
1464 local($in_lit2pgm) = $ifile;
1465 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1466 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1467 local($hsc_hi) = "$Tmp_prefix.hi";
1468 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1469 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1470 local($as_out) = $ofile_target;
1472 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
1474 # OK, let's strip off some literate junk..
1476 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
1478 $lit2pgm_hscpp = $ifile;
1484 # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas
1485 &check_for_source_options($lit2pgm_hscpp,$ifile);
1487 # Options found in the source file take a back seat, i.e., we scan
1488 # them first. Only process the command line again if source file
1489 # contained anything of interest *or* there's more than one
1490 # input file (we have to reset the options).
1492 if ( $#Input_file >= 0 || $#File_options >= 0) {
1493 #@File_options = (@File_options, @Cmd_opts);
1495 # Now process the command line
1496 &initDriverGlobals();
1497 &processArgs((@File_options,@Cmd_opts));
1498 print STDERR "\nEffective command line: " .
1499 join(' ',(@File_options,@Cmd_opts)) . "\n" if $Verbose;
1502 # Having got the effective command line scanned, set up
1503 # the various options in prep for some real work.
1505 # check the sanity of the BuildTag we're about to use,
1506 # and if needs be, add some more flags and setup to
1507 # the different phases.
1510 &setupOptimiseFlags();
1513 &setupWarningFlags();
1514 &setupHeapStackSize();
1517 # These two variables need to be set after the
1518 # command-line has been processed and the build options
1519 # have be seen set up. This is because command-line options
1520 # can control whether to compile vias C or not.
1522 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1524 : ( ($HscOut eq '-C=') ? 1 : 0 );
1525 local($do_as) = $Do_as;
1526 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1527 local($hsc_out_c_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.c" : "";
1528 local($hsc_out_h_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.h" : "";
1530 if ($Only_preprocess_hc) { # stop after having run $Cc -E
1533 if ($Only_preprocess_C) { # stop after having run $hscpp
1534 $do_hsc=0; $do_cc = 0; $do_as=0;
1535 } elsif ($ifile =~ /.lhs$/ || $ifile =~ /.hs$/ ) {
1537 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
1538 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1540 $hsc_out_c_stub = '';
1541 $hsc_out_h_stub = '';
1542 } elsif ($ifile =~ /\.c$/) {
1543 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1544 $hsc_out = $ifile; $is_hc_file = 0;
1545 $hsc_out_c_stub = '';
1546 $hsc_out_h_stub = '';
1547 } elsif ($ifile =~ /\.[sS]$/) {
1548 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
1550 } else { # don't know what it is, but nothing to do herein...
1551 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
1554 # hack to avoid running hscpp
1555 $HsCpp = $Cat if ! $Cpp_flag_set;
1557 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) if $do_hscpp;
1561 We now think about whether to run hsc/cc or not (when hsc produces .s
1562 stuff, it effectively takes the place of both phases).
1563 To get the output file name right: for each phase that we are {\em
1564 not} going to run, set its input (i.e., the output of its preceding
1565 phase) to @"$ifile_root.<suffix>"@.
1568 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
1571 # Warning issued if -keep-hc-file-too is used without
1572 # -fvia-C (or the equivalent)
1574 if ( $HscOut ne '-C=' && $Keep_hc_file_too ) {
1575 print STDERR "$Pgm: warning: Native code generator to be used, -keep-hc-file-too will be ignored\n";
1578 if (! $do_cc && ! $do_as) { # stopping after hsc
1579 $hsc_out = ($Specific_output_file ne '')
1580 ? $Specific_output_file
1581 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
1583 $ofile_target = $hsc_out; # reset
1586 if (! $do_as) { # stopping after gcc (or hsc)
1587 $cc_as = ($Specific_output_file ne '')
1588 ? $Specific_output_file
1589 : &odir_ify($ifile_root, ( $Only_preprocess_hc ) ? 'i' : 's');
1591 $ofile_target = $cc_as; # reset
1597 Now the Haskell compiler, C compiler, and assembler
1601 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
1602 $ofile_target, $hifile_target,
1603 $going_interactive);
1606 if (-f $hsc_out_h_stub) {
1607 &run_something("cp $hsc_out_h_stub $ofile_h_stub_target", 'Copy foreign export header file');
1610 if (-f $hsc_out_c_stub) {
1611 &run_something("cp $hsc_out_c_stub $ofile_c_stub_target", 'Copy foreign export C stubs');
1612 local ($hsc_out_s_stub);
1613 local ($hsc_out_o_stub);
1614 ($ofile_s_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$/\.s/;
1615 ($ofile_o_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$/\.o/;
1616 &runGcc (0, $ofile_c_stub_target, $ofile_s_stub_target);
1617 &runAs ($ofile_o_stub_target, $ofile_s_stub_target);
1619 # Bring the C stub protos into scope when compiling the .hc file.
1621 push (@CcInjects, "#include \"${hsc_out_h_stub}\"\n");
1622 # Hack - ensure that the stub .h file is included in the OPTIONS section
1623 # if the .hc file is saved.
1624 push (@File_options, "-#include \"${ofile_h_stub_target}\"\n");
1629 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
1630 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root) if ! $Only_preprocess_hc;
1633 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
1635 # save a copy of the .s file..
1636 &saveIntermediate($ifile_root , "s" , $cc_as) if ($do_as && $Keep_s_file_too);
1637 &runAs($as_out, $ifile_root) if $do_as;
1640 Finally, decide what to queue up for linker input.
1642 # tentatively assume we will eventually produce linker input:
1643 push(@Link_file, &odir_ify($ifile_root, 'o'));
1645 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
1647 if ( $ifile !~ /\.(lhs|hs|hc|c|s|a|S)$/ && $ifile !~ /_hc$/ ) {
1648 # There's sometimes confusion regarding .hi files; users
1649 # supplying them on the command line.
1650 if ( $ifile =~ /\.hi$/ ) {
1651 print STDERR "$Pgm: warning: found `$ifile' on command line; interface files should not be supplied here - ignoring it.\n";
1653 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n";
1655 # oops; we tentatively pushed the wrong thing; fix & do the right thing
1656 pop(@Link_file); push(@Link_file, $ifile);
1660 } # end of ProcessInputFile
1663 %************************************************************************
1665 \section[Driver-run-phases]{Routines to run the various phases}
1667 %************************************************************************
1671 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
1675 # Only add #line pragma if we're going to need it.
1676 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && " if ($Cpp_flag_set);
1677 $to_do .= "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
1679 push(@Files_to_tidy, $lit2pgm_hscpp );
1681 &run_something($to_do, 'literate pre-processor');
1687 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
1691 # Strictly speaking, echoing of the following line pragma is only required
1692 # on non-delit'ed input, as we've already added it during de-lit. However,
1693 # hscpp will then add a {-# LINE 1 "$lit2pgm_hsc" -} to the top of the file,
1694 # which is not very informative (but harmless). Hence, we uniformly have
1695 # {-# LINE 1 "$in_lit2pgm" #-} as the first line to all cpp'ed hsc input.
1697 $to_do = "echo '{-# LINE 1 \"$in_lit2pgm\" -}' > $hscpp_hsc && ";
1699 if ($HsCpp eq $Cat) {
1700 $to_do .= "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
1701 push(@Files_to_tidy, $hscpp_hsc );
1702 &run_something($to_do, 'Ineffective C pre-processor');
1704 local($includes) = '-I' . join(' -I',@Include_dir);
1705 $to_do .= "$HsCpp $Verbose @HsCpp_flags @HsSourceCppOpts $includes $lit2pgm_hscpp >> $hscpp_hsc";
1706 push(@Files_to_tidy, $hscpp_hsc );
1707 &run_something($to_do, 'Haskellised C pre-processor');
1710 if ( $Only_preprocess_C ) {
1711 $to_do = "$Cat $hscpp_hsc";
1712 &run_something($to_do, '');
1720 sub runHscAndProcessInterfaces {
1721 local($ifile, $hscpp_hsc, $ifile_root,
1722 $ofile_target, $hifile_target,
1723 $going_interactive) = @_;
1725 # $ifile is the original input file
1726 # $hscpp_hsc post-unlit, post-cpp, etc., input file
1727 # $ifile_root input filename minus suffix
1728 # $ofile_target the output file that we ultimately hope to produce
1729 # $hifile_target the .hi file ... (ditto)
1731 local($source_unchanged) = 1;
1733 # Check if the source file is up to date relative to the target; in
1734 # that case we say "source is unchanged" and let the compiler bail out
1735 # early if the import usage information allows it.
1737 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
1738 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
1740 # The informational messages below are now conditional on -v being set -- SOF
1741 if ( $ofile_target ne "_stdin.s" && ! -f $ofile_target ) {
1742 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n" if $Verbose;
1743 $source_unchanged = 0;
1746 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
1747 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
1749 if ( $hifile_target ne "_stdout" && ! -f $hifile_target ) {
1750 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n" if $Verbose;
1751 $source_unchanged = 0;
1754 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
1755 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
1757 if ( $ofile_target ne "_stdin.s" && $i_mtime > $o_mtime) {
1758 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n" if $Verbose;
1759 $source_unchanged = 0;
1762 # Tell the compiler which version we're using
1763 push(@HsC_flags, "-fhi-version=${ProjectVersionInt}");
1765 # So if source_unchanged is still "1", we pass on the good news to the compiler
1766 # The -recomp flag can disable this, forcing recompilation
1767 if ($Do_recomp_chkr && $source_unchanged) {
1768 push(@HsC_flags, '-fsource-unchanged');
1771 # Indicate whether we're static or not.
1772 # This will only ever
1773 push(@HsC_flags, '-static') if $Static;
1777 &runHsc($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive);
1779 # See if it bailed out early, saying nothing needed doing.
1780 # We work this out by seeing if it created an output .hi file
1782 if ( ! -f $hsc_hi && $ProduceHi !~ /-nohifile=/ ) {
1783 # Doesn't exist, so we bailed out early.
1784 # Tell the C compiler and assembler not to run
1785 $do_cc = 0; $do_as = 0;
1787 # Update dependency info, touch both object file and
1788 # interface file, so that the following invariant is
1791 # a dependent module's interface file should after recompilation
1792 # checking be newer than the interface files of its imports.
1794 # That is, if module A's interface file changes, then module B
1795 # (which import from A) needs to be checked.
1796 # If A's change does not affect B, which causes the compiler to bail
1797 # out early, we still need to touch the interface file of B. The reason
1798 # for this is that B may export A's interface.
1800 &run_something("touch $ofile_target",
1801 "Touch $ofile_target, to propagate dependencies") if $HscOut ne '-N=';
1802 &run_something("touch $hifile_target",
1803 "Touch $hifile_target, to propagate dependencies") if $ProduceHi =~ /-nohifile=/ ;
1807 # Didn't bail out early (new .hi file) so we thunder on
1809 # If non-interactive, heave in the consistency info at the end
1810 # NB: pretty hackish (depends on how $output is set)
1811 if ( ! $going_interactive ) {
1812 if ( $HscOut eq '-C=' ) {
1813 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
1815 } elsif ( $HscOut eq '-S=' ) {
1816 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
1817 $consist =~ s/,/./g;
1818 $consist =~ s/\//./g;
1819 $consist =~ s/-/_/g;
1820 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
1821 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
1823 &run_something($to_do, 'Pin on Haskell consistency info');
1827 # Interface-handling is important enough to live off by itself
1828 if ( $ProduceHi !~ /-nohifile=/ ) { # If we've produced one, process it.
1829 require('ghc-iface.prl') || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
1830 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
1832 # if we're going to split up object files,
1833 # we inject split markers into the .hc file now
1834 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
1835 &inject_split_markers ( $hsc_out );
1838 # save a copy of the .hc file, even if we are carrying on...
1839 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
1840 &saveIntermediate($ifile_root , "hc" , $hsc_out);
1850 local($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive) = @_;
1852 # prepend comma to HsP flags (so hsc can tell them apart...)
1853 foreach $a ( @HsP_flags ) { $a = ",$a" unless $a =~ /^,/; }
1855 &makeHiMap() unless $HiMapDone;
1856 push(@HsC_flags, "-himap=$HiIncludeString");
1858 # here, we may produce .hc/.s and/or .hi files
1859 local($output) = '';
1860 #@Files_to_tidy = ();
1862 if ( $going_interactive ) {
1863 # don't need .hi unless we're going to show it on stdout:
1864 $ProduceHi = '-nohifile=' if ! ($HiOnStdout || $Specific_hi_file ne '' );
1865 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
1868 # set up for producing output/.hi; note that flag twiddling
1869 # may mean that nothing will actually be produced:
1870 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out -F=$hsc_out_c_stub -FH=$hsc_out_h_stub";
1871 push(@Files_to_tidy, $hsc_hi, $hsc_out, $hsc_out_c_stub, $hsc_out_h_stub );
1873 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
1874 if ( $CollectingGCstats ) {
1875 push(@HsC_rts_flags, "-S$ifile_root.stat");
1876 push(@Files_to_tidy, "$ifile_root.stat");
1879 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
1880 # emit nofibbish time/bytes-alloc stats to stderr;
1881 # see later .stat file post-processing
1882 print STDERR "warning: both -Rgc-stats and -Rghc-timing used, -Rghc-timing wins." if $CollectingGCstats;
1883 push(@HsC_rts_flags, "-s$Tmp_prefix.stat");
1884 push(@Files_to_tidy, "$Tmp_prefix.stat");
1888 if ($Specific_dump_file ne '') {
1889 $dump = "2>> $Specific_dump_file";
1890 $Using_dump_file = 1;
1894 # Win32 only: If the command processor used by system()
1895 # exec()s the application as an ordinary Win32 executable,
1896 # we're in trouble here, since the command line is likely
1897 # to be > 255 chars long. To work around this situation,
1898 # $HsC also understands `at-files', i.e., `@file' on the
1899 # command line will cause $HsC to add the contents of `file'
1900 # to the command line.
1902 # [ Note: support for `at-files' is not compiled in by default ]
1903 $cmd_line_opts_via_at_file=0;
1904 if ($cmd_line_opts_via_at_file) {
1906 local($to_do_opts) = "$Tmp_prefix.opts";
1907 open(OPTS, "> $Tmp_prefix.opts") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.opts\n");
1908 print OPTS "$dump @HsC_flags $CoreLint $USPLint $StgLint $Verbose";
1910 $to_do = "$HsC @HsP_flags ,$hscpp_hsc \@$Tmp_prefix.opts $output +RTS @HsC_rts_flags";
1914 $to_do = "$HsC @HsP_flags ,$hscpp_hsc $dump @HsC_flags $CoreLint $USPLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
1916 &run_something($to_do, 'Haskell compiler');
1918 # finish business w/ nofibbish time/bytes-alloc stats
1919 &process_ghc_timings() if $CollectGhcTimings;
1923 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
1924 of (module-name, pathname) pairs, one per line, separated by a space.
1927 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1931 # collect in %HiMap; write later; also used elsewhere in driver
1933 local($mod, $path, $d, $e);
1935 # reset the global variables:
1937 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1939 foreach $d ( @Import_dir ) {
1940 if ($HiIncludeString) {
1941 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix}";
1943 $HiIncludeString = "$d%.${HiSuffix}";
1948 foreach $d ( @SysImport_dir ) {
1949 if ($HiIncludeString) {
1950 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix_prelude}";
1952 $HiIncludeString = "${d}%.${HiSuffix_prelude}";
1961 Invoke the 'linker' - either the standard linker or the one used to build
1967 local($libdirs) = '';
1969 # append last minute flags linker and consistency flags
1974 # glue them together:
1975 push(@UserLibrary_dir, @SysLibrary_dir);
1977 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1979 # for a linker, use an explicitly given one, or the going C compiler ...
1980 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1982 if ( ($Specific_output_file eq '') &&
1983 ($TargetPlatform eq 'i386-unknown-cygwin32') ) {
1984 $Specific_output_file = 'main.exe';
1985 print STDERR "Output file not specified, defaulting to \"main.exe\"\n";
1988 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1989 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1991 &prepareWin32DllLink(1);
1993 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $TopClosureFile $libdirs @UserLibrary @SysLibrary";
1994 &run_something($to_do, 'Linker');
1996 # finally, check the consistency info in the binary
1997 local($executable) = $Files_to_tidy[0];
1998 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
2001 # dynamically load consistency-chking code; then do it.
2002 require('ghc-consist.prl')
2003 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
2005 &chk_consistency_info ( $executable );
2008 # if PVM parallel stuff, we do truly weird things.
2009 # Essentially: (1) move the executable over to where PVM expects
2010 # to find it. (2) create a script in place of the executable
2011 # which will cause the program to be run, via SysMan.
2012 if ( $PARing eq 'p' ) {
2013 local($pvm_executable) = $executable;
2014 local($pvm_executable_base);
2016 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
2017 local($pwd) = `pwd`;
2019 $pwd =~ s/^\/tmp_mnt//;
2020 $pvm_executable = "$pwd/$pvm_executable";
2023 $pvm_executable =~ s|/|=|g; # make /s into =s
2024 $pvm_executable_base = $pvm_executable;
2026 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
2027 . "/$pvm_executable";
2029 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
2031 # OK, now create the magic script for "$executable"
2032 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
2033 print EXEC <<EOSCRIPT1;
2034 eval 'exec perl -S \$0 \${1+"\$@"}'
2035 if \$running_under_some_shell;
2036 # =!=!=!=!=!=!=!=!=!=!=!
2037 # This script is automatically generated: DO NOT EDIT!!!
2038 # Generated by Glasgow Haskell, version ${ProjectVersion} ${ProjectPatchLevel}
2040 \$pvm_executable = '$pvm_executable';
2041 \$pvm_executable_base = '$pvm_executable_base';
2042 \$SysMan = '$SysMan';
2045 print EXEC <<\EOSCRIPT2;
2046 # first, some magical shortcuts to run "commands" on the binary
2048 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
2050 system("$cmd $pvm_executable");
2054 # OK, really run it; process the args first
2055 $ENV{'PE'} = $pvm_executable_base;
2057 $nprocessors = 2; # the default
2061 # ToDo: handle --RTS
2062 args: while ($a = shift(@ARGV)) {
2063 if ( $a eq '+RTS' ) {
2065 } elsif ( $a eq '-RTS' ) {
2068 if ( $a eq '-d' && $in_RTS_args ) {
2070 } elsif ( $a =~ /^-N(\d+)/ && $in_RTS_args ) {
2073 push(@nonPVM_args, $a);
2077 local($return_val) = 0;
2078 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
2080 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
2083 close(EXEC) || die "Failed closing $executable\n";
2084 chmod 0755, $executable;
2088 sub createWin32DLL()
2092 # append last minute flags linker and consistency flags
2097 # glue them together:
2098 push(@UserLibrary_dir, @SysLibrary_dir);
2100 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
2102 &prepareWin32DllLink(0);
2104 local ($bld_dll) = "dllwrap";
2106 local ($output) = ($Specific_output_file ne '') ? "$Specific_output_file" : 'HSdll.dll';
2107 local ($output_dir);
2108 local ($output_file);
2109 local ($output_lib, $output_def);
2111 ($output_dir = $output) =~ s|(.*/)[^/]+$|$1|;
2112 $output_dir = "" if ($output_dir eq $output);
2113 ($output_file = $output) =~ s|.*/([^/]+)$|$1|;
2115 ($output_lib = $output_file) =~ s|(.+)\.[^\.]*$|${output_dir}lib$1_imp.a|;
2116 ($output_def = $output_file) =~ s|(.+)\.[^\.]*$|${output_dir}$1.def|;
2118 push (@Dll_flags, "-mno-cygwin --target=i386-mingw32") if ($TargetPlatform =~ /^.*mingw32$/);
2119 push (@Dll_flags, "--output-lib $output_lib");
2120 # If the "--def " option hasn't been supplied, assume everything
2121 # is going to be exported via the DLL.."
2122 if (!grep(/--def/, @Dll_flags)) {
2123 push (@Dll_flags, "--export-all --output-def $output_def");
2126 local($to_do) = "$bld_dll @Dll_flags -o $output @Link_file $libdirs @UserLibrary @SysLibrary";
2127 # Make sure the user sees this piece of magic.
2128 print STDERR "$to_do\n" if (!$Verbose);
2129 &run_something($to_do, 'DLL creator');
2132 sub prepareWin32DllLink ()
2134 local($linking_main) = @_;
2137 # Win32 DLLs - link with import libraries, not the real archives.
2139 if ( $TargetPlatform =~ /-mingw32$/ ) {
2142 # If the libraries have the form libHSfoo.a, we
2143 # transform that into libHSfoo_imp.a - the import
2144 # library of the DLL.
2146 foreach $a ( @SysLibrary ) {
2147 $a = "${a}_imp" if ($a =~ /^-lHS/);
2149 foreach $a ( @UserLibrary ) {
2150 $a = "${a}_imp" if ($a =~ /^-lHS/);
2152 push(@Link_file, ( $INSTALLING ) ? "$InstLibDirGhc/Main.o"
2153 : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/Main.o") if $linking_main;
2154 push(@Link_file, ( $INSTALLING ) ? "$InstLibDirGhc/PrelMain.o"
2155 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/PrelMain.o") if $linking_main;
2157 push(@Ld_flags, "-mno-cygwin");
2163 %************************************************************************
2165 \section[Driver-misc-utils]{Miscellaneous utilities}
2167 %************************************************************************
2169 %************************************************************************
2171 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
2173 %************************************************************************
2177 local($ofile,$def_suffix) = @_;
2179 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
2183 local($orig_file, $def_suffix) = @_;
2184 if ($Specific_output_dir eq '') { # do nothing
2185 &osuf_ify($orig_file, $def_suffix);
2187 local ($orig_file_only);
2188 ($orig_file_only = $orig_file) =~ s|.*/||;
2189 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
2196 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
2198 local($includes) = '-I' . join(' -I', @Include_dir);
2201 local($c_flags) = "@CcBoth_flags";
2202 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2204 $c_flags .= " -mno-cygwin" if ( $TargetPlatform =~ /-mingw32$/ );
2206 # "input" files to use that are not in some weird directory;
2207 # to help C compilers grok .hc files [ToDo: de-hackify]
2208 local($cc_help) = "ghc$$.c";
2209 local($cc_help_s) = "ghc$$.s";
2212 $s_output = (($is_hc_file && $DoAsmMangling) || $TargetPlatform =~ /^(powerpc|rs6000|hppa)/) ? $cc_as_o : $cc_as;
2213 $c_flags .= " @CcRegd_flags";
2214 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2216 # C compiler won't like the .hc extension. So we create
2217 # a tmp .c file which #include's the needful.
2218 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2219 if ( $is_hc_file ) {
2223 # user may have asked for #includes to be injected...
2224 print TMP @CcInjects if $#CcInjects >= 0;
2226 # Straight .c files may want to know that they're being used
2227 # with a particular version of GHC, so we define __GLASGOW_HASKELL__ for their benefit.
2228 print TMP "#define __GLASGOW_HASKELL__ ${ProjectVersionInt}\n";
2230 # heave in the consistency info
2231 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2233 print TMP "#include \"$hsc_out\"\n";
2234 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2236 # Don't redirect stderr into intermediate file if slamming output onto stdout (e.g., with -E)
2237 local($fuse_stderr) = "2>&1" if ! $Only_preprocess_hc;
2238 local($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 )";
2240 if ( $Only_preprocess_hc ) { # HACK ALERT!
2241 $to_do =~ s/ -S\b//g;
2243 push(@Files_to_tidy, $cc_help, $cc_help_s, $s_output );
2244 $PostprocessCcOutput = 1 if ! $Only_preprocess_hc; # hack, dear hack...
2245 &run_something($to_do, 'C compiler');
2246 $PostprocessCcOutput = 0;
2247 if ( $Only_preprocess_hc ) {
2248 system("$Cat $Tmp_prefix.ccout");
2250 unlink($cc_help, $cc_help_s);
2256 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2258 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2260 if ($is_hc_file && $DoAsmMangling) {
2261 # dynamically load assembler-fiddling code, which we are about to use:
2262 require('ghc-asm.prl')
2263 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2264 # post-process the assembler [.hc files only]
2265 &mangle_asm($cc_as_o, $cc_as);
2267 } elsif ($TargetPlatform =~ /^hppa/) {
2268 # minor mangling of non-threaded files for hp-pa only
2269 require('ghc-asm.prl')
2270 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2271 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2273 } elsif ($TargetPlatform =~ /^powerpc|^rs6000/) {
2274 # minor mangling of non-threaded files for powerpcs and rs6000s
2275 require('ghc-asm.prl')
2276 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-powerpc.prl!\n");
2277 &mini_mangle_asm_powerpc($cc_as_o, $cc_as);
2280 # save a copy of the .s file, even if we are carrying on...
2281 #if ($do_as && $Keep_s_file_too) {
2282 # &saveIntermediate($ifile_root , "s" , $cc_as);
2289 local($as_out, $ifile_root) = @_;
2291 local($asmblr) = ( $As ) ? $As : $CcRegd;
2293 # need to add the -I flags in case the file is going through cpp (.S files)
2294 local($includes) = '-I' . join(' -I', @Include_dir);
2296 if ( ! $SplitObjFiles ) {
2297 local($to_do) = "$asmblr -o $as_out -c @As_flags $includes $cc_as";
2298 push(@Files_to_tidy, $as_out );
2299 &run_something($to_do, 'Unix assembler');
2301 } else { # more complicated split-ification...
2303 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2305 # If -odir is used, great, just pin it in front of the
2306 # generated split file names. If it hasn't been set, we
2307 # snatch it from the ifile_root.
2311 if ( $Specific_output_dir eq '' ) {
2312 $Specific_output_dir = ${ifile_root};
2315 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2316 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2317 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2318 push(@Files_to_tidy, $split_out );
2320 &run_something($to_do, 'Unix assembler');
2326 %************************************************************************
2328 \subsection[Driver-run-something]{@run_something@: Run a phase}
2330 %************************************************************************
2334 local($str_to_do, $tidy_name) = @_;
2336 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2337 print STDERR "$str_to_do\n" if $Verbose;
2339 if ($Using_dump_file) {
2340 open(DUMP, ">> $Specific_dump_file")
2341 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2342 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2344 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2347 local($return_val) = 0;
2349 if ( length($str_to_do) > 4000) {
2350 # 4000 - on the random side, just like the *real* ARG_MAX
2353 # With some shells, command lines of this length may
2354 # very well cause trouble. To safeguard against this, we squirrel the
2355 # command into a file and exec that.
2356 local ($sh) = $ENV{'REAL_SHELL'};
2357 print STDERR "Backup plan A: saving cmd line in ${Tmp_prefix}.sh and executing that with $sh\n" if $Verbose;
2358 open (TEMP, "> ${Tmp_prefix}.sh") ||
2359 &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.sh'\n");
2360 print TEMP "$Time $str_to_do\n";
2362 &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.sh'\n");
2363 system("$sh $Tmp_prefix.sh");
2366 unlink "${Tmp_prefix}.sh";
2368 system("$Time $str_to_do");
2372 if ( $PostprocessCcOutput ) { # hack, continued
2373 open(CCOUT, "< $Tmp_prefix.ccout")
2374 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2376 next if /call-clobbered/;
2377 next if /control reaches end/;
2378 next if /from .*Stg\.h:/;
2379 next if /from ghc\d+.c:\d+:/;
2380 next if /: At top level:$/;
2381 next if /: In function \`.*\':$/;
2382 next if /\`ghc_cc_ID\' defined but not used/;
2385 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2388 if ($return_val != 0) {
2389 if ($Using_dump_file) {
2390 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2392 &tidy_up_and_die($return_val, '');
2394 $Using_dump_file = 0;
2398 %************************************************************************
2400 \subsection[Driver-ghc-timing]{Emit nofibbish GHC timings}
2402 %************************************************************************
2404 NB: nearly the same as in @runstdtest@ script.
2407 sub process_ghc_timings {
2408 local($StatsFile) = "$Tmp_prefix.stat";
2409 local($SysSpecificTiming) = 'ghc';
2411 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2412 local($max_live) = 0;
2413 local($tot_live) = 0; # for calculating residency stuff
2414 local($tot_samples) = 0;
2417 if (! /Gen:\s+0/ && ! /Minor/ && /^\s*\d+\s+\d+\s+(\d+)\s+\d+\.\d+/ ) {
2418 $max_live = $1 if $max_live < $1;
2422 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2424 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2425 $MaxResidency = $1; $ResidencySamples = $2;
2428 $GCs = $1 if /^\s*([0-9,]+) (collections? in generation 0|garbage collections? performed)/;
2430 if ( /^\s+([0-9]+)\s+Mb total memory/ ) {
2434 # The presence of -? in the following pattern is only there to
2435 # accommodate 0.29 && <= 2.05 RTS'
2436 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*-?(\d+\.\d\d)s elapsed\)/ ) {
2437 $InitTime = $1; $InitElapsed = $2;
2438 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2439 $MutTime = $1; $MutElapsed = $2;
2440 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2441 $GcTime = $1; $GcElapsed = $2;
2444 close(STATS) || die "Failed when closing $StatsFile\n";
2445 if ( $tot_samples > 0 ) {
2446 $ResidencySamples = $tot_samples;
2447 $MaxResidency = $max_live;
2448 $AvgResidency = int ($tot_live / $tot_samples) ;
2451 # warn about what we didn't find
2452 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2453 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2454 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2455 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2456 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2457 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2458 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2459 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2461 # things we didn't necessarily expect to find
2462 $MaxResidency = 0 unless defined($MaxResidency);
2463 $AvgResidency = 0 unless defined($AvgResidency);
2464 $ResidencySamples = 0 unless defined($ResidencySamples);
2467 $BytesAlloc =~ s/,//g;
2468 $MaxResidency =~ s/,//g;
2470 $InitTime =~ s/,//g;
2471 $InitElapsed =~ s/,//g;
2473 $MutElapsed =~ s/,//g;
2475 $GcElapsed =~ s/,//g;
2477 # print out what we found
2478 print STDERR "<<$SysSpecificTiming: ",
2479 "$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)",
2480 " :$SysSpecificTiming>>\n";
2487 %************************************************************************
2489 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2491 %************************************************************************
2495 local($to_do) = "\n$Rm $Tmp_prefix*";
2496 if ( $Tmp_prefix !~ /^\s*$/ ) {
2497 print STDERR "$to_do\n" if $Verbose;
2502 sub tidy_up_and_die {
2503 local($return_val, $msg) = @_;
2505 # delete any files to tidy
2506 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2507 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2511 exit (($return_val == 0) ? 0 : 1);
2515 %************************************************************************
2517 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2519 %************************************************************************
2521 Some command-line arguments take an argument, e.g.,
2522 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2523 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2524 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2526 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2527 gobble the second argument (and probably set the heapsize to something
2531 local(*Args, $option, $rest_of_arg) = @_;
2533 if ($rest_of_arg ne '') {
2534 return($rest_of_arg);
2535 } elsif ($#Args >= 0) {
2536 local($temp) = $Args[0]; shift(@Args);
2539 print STDERR "$Pgm: no argument following $option option\n";
2550 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2552 foreach $f ( @HsC_antiflags ) {
2553 return(0) if $flag eq $f;
2555 # foreach $f ( @HsC_flags ) {
2556 # return(0) if $flag eq $f;
2561 sub squashHscFlag { # pretty terrible
2565 foreach $f ( @HsC_flags ) {
2566 if ($flag eq $f) { $f = ''; }
2574 foreach $f ( @flags ) {
2575 push( @HsC_flags, $f ) if &isntAntiFlag($f);
2580 To add another system library, you'll need to augment the
2581 Supported_syslibs variable with name and info on your addition
2582 to the syslib family. The info bit consist of the following:
2584 - interface file directory
2585 see the misc or posix entry for how to distinguish
2586 between using installed and build tree directories.
2588 - directory location of archives
2590 - location of (way-independent) C support libs.
2591 not all libraries need this - if you don't, just
2592 give the empty string.
2593 - list of syslibs you depend on.
2595 - additional ghc command line flags that should be used.
2596 - additional C compiler command line flags that should be used.
2602 # Hash to keep track of
2603 %Syslibs_added = ();
2606 local($syslib) = @_;
2608 # Lifting this out of this sub brings it out of scope - why??
2609 %Supported_syslibs =
2611 [ # where to slurp interface files from
2613 ? "$InstLibDirGhc/imports/exts"
2614 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/exts"
2616 , # where to find the archive to use when linking
2619 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/exts"
2622 , '' # Syslib dependencies
2623 , '' # extra ghc opts
2624 , '' # extra cc opts
2625 , '' # extra ld opts
2629 [ # where to slurp interface files from
2631 ? "$InstLibDirGhc/imports/misc"
2632 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc"
2634 , # where to find the archive to use when linking
2637 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc"
2639 , # where to find the cbits archive to use when linking
2642 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc/cbits"
2644 , 'exts' # Syslib dependencies
2645 , '' # extra ghc opts
2646 , '' # extra cc opts
2647 , ( $TargetPlatform =~ /-solaris2$/ ? '-lnsl -lsocket' : '')
2650 [ # where to slurp interface files from
2652 ? "$InstLibDirGhc/imports/hbc"
2653 : "$TopPwd/CONTRIB/libraries/hbc/src"
2655 , # where to find the archive to use when linking
2658 : "$TopPwd/CONTRIB/libraries/src/hbc"
2660 , # where to find the cbits archive to use when linking
2663 : "$TopPwd/CONTRIB/libraries/hbc/cbits"
2665 , 'exts' # Syslib dependencies
2666 , '' # extra ghc opts
2667 , '' # extra cc opts
2671 [ # where to slurp interface files from
2673 ? "$InstLibDirGhc/imports/posix"
2674 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix"
2676 , # where to find the archive to use when linking
2679 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix"
2681 , # where to find the cbits archive to use when linking
2684 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix/cbits"
2686 , 'misc' # Syslib dependencies
2687 , '' # extra ghc opts
2688 , '' # extra cc opts
2689 , '' # extra ld opts
2692 [ # where to slurp interface files from
2694 ? "$InstLibDirGhc/imports/concurrent"
2695 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent"
2697 , # where to find the archive to use when linking
2700 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent"
2702 , '' # where to find the cbits archive to use when linking
2703 , '' # Syslib dependencies
2704 , '' # extra ghc opts
2705 , '' # extra cc opts
2706 , '' # extra ld opts
2709 [ # where to slurp interface files from
2711 ? "$InstLibDirGhc/imports/win32"
2712 : "$TopPwd/hslibs/win32/src"
2714 , # where to find the archive to use when linking
2717 : "$TopPwd/hslibs/win32/src"
2720 , 'exts' # Syslib dependencies
2721 , '' # extra ghc opts
2722 , '' # extra cc opts
2723 , '-luser32 -lgdi32' # extra ld opts
2726 [ # where to slurp interface files from
2728 ? "$InstLibDirGhc/imports/com"
2729 : "$TopPwd/hdirect/lib"
2731 , # where to find the archive to use when linking
2734 : "$TopPwd/hdirect/lib"
2737 , 'exts' # Syslib dependencies
2738 , '' # extra ghc opts
2739 , '' # extra cc opts
2740 , '-luser32 -lole32 -loleaut32 -ladvapi32'
2745 # check if it's supported..
2747 if ( !exists $Supported_syslibs{$syslib} ) {
2748 print STDERR "$Pgm: no such system library (-syslib): $syslib\n";
2753 # This check is here to avoid syslib loops from
2754 # spoiling the party. A side-effect of it is that
2755 # it disallows multiple mentions of a syslib on a command-line,
2756 # explicit *and* implicit ones (i.e., "-syslib exts -syslib misc"
2757 # is not equal to "-syslib exts -syslib misc -syslib exts",
2758 # which it needs to be)
2760 # Since our current collection of syslibs don't have any
2761 # loops, this test is disabled.
2763 # ToDo: loop avoidance scheme when the need arises
2765 #return if ( exists $Syslibs_added{$syslib} );
2767 $Syslibs_added{$syslib} = 1;
2769 local ($hi_dir, $lib_dir, $lib_cbits_dir,
2770 $syslib_deps, $syslib_ghc_opts,
2771 $syslib_cc_opts, $syslib_ld_opts) = @{ $Supported_syslibs{$syslib} };
2774 unshift(@SysImport_dir, $hi_dir);
2775 push(@SysLibrary_dir, $lib_dir);
2776 push(@SysLibrary_dir, $lib_cbits_dir) if ( $lib_cbits_dir ne '');
2778 push(@SysLibrary, "-lHS$syslib");
2779 push(@SysLibrary, "-lHS${syslib}_cbits") if ( $lib_cbits_dir ne '');
2780 push(@SysLibrary, $syslib_ld_opts) if ($syslib_ld_opts ne '');
2782 # Add on any extra dependencies.
2783 foreach $lib (split(' ',$syslib_deps)) {
2789 Source files may have {-# OPTIONS ... #-} pragmas at the top, containing
2790 command line options we want to append to collection of commands specified
2791 directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell
2792 file for any such pragmas:
2795 sub check_for_source_options {
2796 local($file,$ifile) = @_;
2797 local($comment_start,$comment_end);
2799 if ($ifile =~ /\.hc$/ ||
2802 $ifile =~ /_s$/ ) { # `Real' C intermediate
2803 $comment_start = "/\\*";
2804 $comment_end = "\\*/";
2805 } else { # Assume it is a file containing Haskell source
2806 $comment_start = "{-#";
2807 $comment_end = "#-}";
2810 open(FILE,$file) || return(1); # No big loss
2813 if ( /^${comment_start} OPTIONS (.*)${comment_end}$/ ) {
2814 # add the options found at the back of the command line.
2815 local(@entries) = split(/\s+/,$1);
2816 print STDERR "Found OPTIONS " . join(' ',@entries) . " in $file\n" if $Verbose;
2817 push(@File_options, @entries);
2819 elsif ( /^$/ ) { # ignore empty lines
2822 elsif ( /^#line.+$/ ) { # ignore comment lines (unused..ToDo: rm )
2825 elsif ( /^{-# LINE.+$/ ) { # ignore line pragmas
2828 else { # stop looking, something non-empty / not
2829 # ${comment_start} OPTIONS .. ${comment_end} encountered.
2830 close(FILE);return(0);
2839 We split the initial argv up into three arrays:
2845 the reason for doing so is to be able to deal
2846 with {-# OPTIONS #-} pragma in source files properly.
2852 arg: while($_ = $args[0]) {
2854 # sigh, we have to deal with these -option arg specially here.
2855 /^-(tmpdir|odir|ohi|o|isuf|osuf|hisuf|odump|syslib)$/ &&
2856 do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; };
2857 /^--?./ && do { push(@Cmd_opts, $_); next arg; };
2859 if (/\.([^_]+_)?[oa]$/) {
2860 push(@Link_file, $_);
2862 push(@Input_file, $_);
2865 # input files must exist:
2867 print STDERR "$Pgm: input file doesn't exist: $_\n";
2875 When saving an intermediate file (.hc or .s) away, we
2876 have to prefix any OPTIONS found in the original source file.
2879 sub saveIntermediate {
2880 local ($final,$suffix,$tmp)= @_ ;
2883 # $final -- root of where to park ${final}.${suffix}
2884 # $tmp -- temporary file where hsc put the intermediate file.
2886 # Delete the old file
2887 $to_do = "$Rm ${final}.${suffix}"; &run_something($to_do, "Removing old .${suffix} file");
2889 if ( $#File_options >= 0 ) { # OPTIONS found in Haskell source unit
2890 # Add OPTION comment to the top of the generated .${suffix} file
2891 open(TEMP, "> ${final}.${suffix}") || &tidy_up_and_die(1,"Can't open ${final}.${suffix}\n");
2892 print TEMP "/* OPTIONS " . join(' ',@File_options) . " */\n";
2894 print STDERR "Prepending OPTIONS: " . join(' ',@File_options) . " to ${final}.${suffix}\n" if $Verbose;
2896 $to_do = "$Cat $tmp >> ${final}.${suffix}";
2897 &run_something($to_do, "Saving copy of .${suffix} file");
2904 Command-line processor
2910 # can't use getopt(s); what we want is too complicated
2912 arg: while($_ = $Args[0]) {
2915 #---------- help -------------------------------------------------------
2916 if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; }
2918 #-----------version ----------------------------------------------------
2919 /^--version$/ && do { print STDERR "${ProjectName}, version ${ProjectVersion}, patchlevel ${ProjectPatchLevel}\n"; exit $Status; };
2921 #---------- verbosity and such -----------------------------------------
2922 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
2924 #---------- what phases are to be run ----------------------------------
2925 /^-(no-)?recomp/ && do { $Do_recomp_chkr = ($1 eq '') ? 1 : 0; next arg; };
2927 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
2928 # change the global default:
2929 # we won't run cat; we'll run the real thing
2931 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
2933 # stop after generating C
2935 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
2936 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
2938 # leave out actual C generation (debugging) [also turns off interface gen]
2941 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
2942 # _do_ generate an interface; usually used as: -noC -hi
2943 /^-hi-with-(.*)$/ && do { $HiOnStdout = 1; $HiWith .= " $1" ; $ProduceHi = '-hifile='; next arg; };
2944 # limit ourselves to outputting a particular section.
2946 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
2947 # don't generate an interface (even if generating C)
2949 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
2950 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
2951 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
2952 /^-keep-hi-diffs$/ && do { $Keep_HiDiffs = 1; next arg; };
2954 # show/disable diffs if the interface file changes
2956 /^-E$/ && do { push(@CcBoth_flags, '-E');
2957 $Only_preprocess_C = 1;
2958 $Do_as = 0; $Do_lnkr = 0; next arg; };
2959 # stop after preprocessing C
2960 /^-M$/ && do { $Only_generate_deps = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2961 # only generate dependency information.
2962 /^--mk-dll$/ && do { $Only_generate_dll = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2963 # Build a Win32 DLL (where supported).
2964 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
2965 # stop after generating assembler
2967 /^-c$/ && do { $Do_lnkr = 0; next arg; };
2968 # stop after generating .o files
2970 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
2971 # don't do consistency-checking after a link
2972 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
2974 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', '');
2975 $Tmp_prefix = "$Tmp_prefix/ghc$$";
2976 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
2978 # use an alternate directory for temp files
2980 #---------- redirect output --------------------------------------------
2982 # -o <file>; applies to the last phase, whatever it is
2983 # "-o -" sends it to stdout
2984 # if <file> has a directory component, that dir must already exist
2986 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', '');
2988 # Hack, of the worst sort: don't do validation of
2989 # odir argument if you're using -M (dependency generation).
2991 if ( ! $Only_generate_deps && ! -d $Specific_output_dir) {
2992 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
2997 /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', '');
2998 if ($Specific_output_file ne '-'
2999 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
3000 local($dir_part) = $1;
3001 if (! -d $dir_part) {
3002 print STDERR "$Pgm: no such directory: $dir_part\n";
3008 # NB: -isuf not documented yet (because it doesn't work yet)
3009 /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', '');
3010 if ($Isuffix =~ /\./ ) {
3011 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
3016 /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', '');
3017 if ($Osuffix =~ /\./ ) {
3018 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
3023 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
3024 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', '');
3025 if ($Specific_hi_file ne '-'
3026 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
3027 local($dir_part) = $1;
3028 if (! -d $dir_part) {
3029 print STDERR "$Pgm: no such directory: $dir_part\n";
3033 $ProduceHi='-hifile=';
3036 # The suffix to use when looking for interface files
3037 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', '');
3038 if ($HiSuffix =~ /\./ ) {
3039 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
3043 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', '');
3044 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
3045 local($dir_part) = $1;
3046 if (! -d $dir_part) {
3047 print STDERR "$Pgm: no such directory: $dir_part\n";
3053 #-------------- scc & Profiling Stuff ----------------------------------
3055 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
3057 /^-auto-dicts$/ && do {
3058 $PROFdicts = '-fauto-sccs-on-dicts';
3060 /^-auto-all$/ && do {
3061 $PROFauto = '-fauto-sccs-on-all-toplevs';
3064 $PROFauto = '-fauto-sccs-on-exported-toplevs';
3067 /^-caf-all/ && do { # generate individual CAF SCC annotations
3068 $PROFcaf = '-fauto-sccs-on-individual-cafs';
3071 /^-ignore-scc$/ && do {
3072 # forces ignore of scc annotations even if profiling
3073 $PROFignore_scc = '-W';
3076 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
3079 /^-unprof-scc-auto/ && do {
3080 # generate auto SCCs on top level bindings when not profiling.
3081 # Used to measure optimisation effects of presence of sccs.
3082 $UNPROFscc_auto = ( /-all/ )
3083 ? '-fauto-sccs-on-all-toplevs'
3084 : '-fauto-sccs-on-exported-toplevs';
3087 #--------- ticky/parallel ----------------------------------------------
3088 # we sort out the details a bit later on
3090 /^-gransim$/ && do { $GRANing = 'g'; &add_syslib('concurrent'); next arg; }; # GranSim
3091 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
3092 /^-parallel$/ && do { $PARing = 'p'; &add_syslib('concurrent'); next arg; }; # parallel Haskell
3094 #-------------- "user ways" --------------------------------------------
3096 (/^-user-setup-([a-oA-Z])$/ ) &&
3098 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
3100 local($stuff) = $UserSetupOpts{$BuildTag};
3101 local(@opts) = split(/\s+/, $stuff);
3103 # feed relevant ops into the arg-processing loop (if any)
3104 unshift(@Args, @opts) if $#opts >= 0;
3108 #---------- set search paths for libraries and things ------------------
3110 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
3111 # prepends the items to the list); -I is for including C .h files.
3113 /^-i$/ && do { @Import_dir = (); # import path cleared!
3114 @SysImport_dir = ();
3115 print STDERR "WARNING: import paths cleared by `-i'\n";
3118 /^-i(.*)/ && do { local(@new_items)
3119 = split( /:/, &grab_arg_arg(*Args,'-i', $1));
3120 unshift(@Import_dir, @new_items);
3123 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; };
3124 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; };
3125 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; };
3127 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1);
3128 &add_syslib($syslib);
3131 #=======================================================================
3132 # various flags that we can harmlessly send to one program or another
3133 # (we will later "reclaim" some of the compiler ones now sent to gcc)
3134 #=======================================================================
3136 #---------- this driver itself (ghc) -----------------------------------
3137 # these change what executable is run for each phase:
3138 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
3139 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
3140 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
3141 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
3142 /^-pgma(.*)$/ && do { $As = $1; next arg; };
3143 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
3144 /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; };
3146 #---------- the get-anything-through opts (all pgms) -------------------
3147 # these allow arbitrary option-strings to go to any phase:
3148 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
3149 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
3150 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
3151 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
3152 /^-optp(.*)$/ && do { push(@HsP_flags, $1); next arg; };
3153 /^-optcpp(.*)$/ && do { push(@Cpp_define, $1); $Only_preprocess_hc = ($1 eq "-E"); next arg; };
3154 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
3155 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
3156 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
3157 /^-optdll(.*)$/ && do { push(@Dll_flags, $1); next arg; };
3158 /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; };
3160 #---------- Haskell C pre-processor (hscpp) ----------------------------
3161 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; };
3162 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; };
3164 #---------- post-Haskell "assembler"------------------------------------
3165 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
3166 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
3168 #---------- Haskell compiler (hsc) -------------------------------------
3170 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
3171 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
3173 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
3174 /^-fignore-asserts$/ && do { push(@HsC_flags, $_); next arg; };
3176 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
3179 # have the compiler proper generate concurrent code,
3180 # really only used when you want to configure your own
3181 # special user compilation way.
3183 # (ditto for -fgransim, fscc-profiling, -fparallel and -fticky-ticky)
3185 /^-fscc-profiling$/ && do { push(@HsC_flags,$_); next arg; };
3186 /^-fticky-ticky$/ && do { push(@HsC_flags,$_); next arg; };
3187 /^-fgransim$/ && do { push(@HsC_flags,$_); next arg; };
3188 /^-fparallel$/ && do { push(@HsC_flags,$_); next arg; };
3190 /^-split-objs$/ && do {
3191 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|rs6000|sparc)-/ ) {
3193 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
3198 push(@HsC_flags, "-fglobalise-toplev-names");
3199 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
3201 require('ghc-split.prl')
3202 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
3206 /^-fno-asm-mangling$/ && do { $DoAsmMangling = 0; next arg; };
3208 /^-fallow-overlapping-instances$/ && do { push(@HsC_flags, $_); next arg; };
3209 /^-fallow-undecidable-instances$/ && do { push(@HsC_flags, $_); next arg; };
3211 && do { push(@HsC_flags, $_);
3212 push(@HsP_flags, '-N');
3214 # -fglasgow-exts implies -syslib exts
3215 &add_syslib('exts');
3220 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
3221 /^-fno-speciali[sz]e$/
3222 && do { $Oopt_DoSpecialise = ''; next arg; };
3225 && do { $Oopt_UsageSPInf = '-fusagesp';
3226 push (@HsC_flags, '-fusagesp-on'); next arg; };
3228 /^-fcompiling-prelude$/ && do { $CompilingPrelude=1; push(@HsC_flags, $_); next arg; };
3230 # Now the foldr/build options, which are *on* by default (for -O).
3233 && do { $Oopt_FoldrBuild = 1;
3234 $Oopt_FB_Support = '-fdo-arity-expand';
3238 /^-fno-foldr-build$/
3239 && do { $Oopt_FoldrBuild = 0;
3240 $Oopt_FB_Support = '';
3243 /^-fno-foldr-build-rule$/
3244 && do { $Oopt_FoldrBuild = 0;
3247 /^-fno-enable-tech$/
3248 && do { $Oopt_FB_Support = '';
3251 /^-fno-snapback-to-append$/
3252 && do { $Oopt_FoldrBuildInline .= ' -fdo-not-fold-back-append ';
3255 # --------------- Renamer -------------
3258 /^-fno-prune-tydecls$/ && do { push(@HsC_flags, $_); next arg; };
3259 /^-fno-prune-instdecls$/ && do { push(@HsC_flags, $_); next arg; };
3263 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
3264 /^-fvia-[cC]$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
3269 && do { push(@HsC_flags, $_); next arg };
3271 /^-funfold-casms-in-hi-file$/
3272 && do { push(@HsC_flags, $_); next arg };
3274 /^(-fmax-simplifier-iterations)(.*)$/
3275 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2);
3278 /^-fno-pedantic-bottoms$/
3279 && do { $Oopt_PedanticBottoms = ''; next arg; };
3281 /^-fno-pre-inlining$/
3282 && do { push(@HsC_flags, $_); next arg };
3284 /^-fdo-monad-eta-expansion$/
3285 && do { $Oopt_MonadEtaExpansion = $_; next arg; };
3287 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
3288 && do { push(@HsC_flags, $_); next arg; };
3290 /^-funbox-strict-fields$/
3291 && do { push(@HsC_flags, $_); next arg; };
3293 # --------------- Warnings etc. ------
3295 /^-fwarn-(.*)$/ && do { push(@HsC_flags, $_); next arg; };
3297 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
3298 &squashHscFlag("-f$1");
3301 /^-W$/ && do { push(@HsC_flags, @MinusWOpts); next arg; };
3302 /^-Wall$/ && do { push(@HsC_flags, @MinusWallOpts); next arg; };
3303 /^(-Wnot|w)$/ && do { foreach (@Hsc_flags) {
3304 /^-fwarn-(.*)$/ && do { $_=''; };
3306 push(@HsC_antiflags, @StandardWarnings);
3309 # --------------- fun stuff ----------------
3311 /^-freport-compile$/ && do { push(@HsC_flags, $_); next arg; };
3313 # --------------- platform specific flags (for gcc mostly) ----------------
3315 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes,
3316 # for 2.6.x..?, does not apply for 2.7.2
3318 unshift(@CcBoth_flags, ( $_ ));
3321 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
3322 && do { # for GCC for SPARCs
3323 unshift(@CcBoth_flags, ( $_ ));
3326 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
3327 $StolenX86Regs = $1;
3330 #*************** ... and lots of debugging ones (form: -d* )
3332 # -d(no-)core-lint is done this way so it is turn-off-able.
3333 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
3334 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
3335 # Ditto for USP lint
3336 /^-dusagesp-lint/ && do { $USPLint = '-dusagesp-lint'; next arg; };
3337 /^-dno-usagesp-lint/ && do { $USPLint = ''; next arg; };
3338 # Ditto for STG lint
3339 /^-dstg-lint/ && do { $StgLint = '-dstg-lint'; next arg; };
3340 /^-dno-stg-lint/ && do { $StgLint = ''; next arg; };
3342 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
3343 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
3344 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
3345 /^-dshow-rn-stats/ && do { push(@HsC_flags, $_); next arg; };
3346 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
3347 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
3348 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
3349 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
3351 #*************** ... and now all these -R* ones for its runtime system...
3353 /^-Rscale-sizes?(.*)/ && do {
3354 $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1);
3357 /^(-H|-Rmax-heapsize)(.*)/ && do {
3358 local($heap_size) = &grab_arg_arg(*Args,$1, $2);
3359 if ($heap_size =~ /(\d+)[Kk]$/) {
3360 $heap_size = $1 * 1000;
3361 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
3362 $heap_size = $1 * 1000 * 1000;
3363 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
3364 $heap_size = $1 * 1000 * 1000 * 1000;
3366 if ($heap_size <= 0) {
3367 print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n";
3368 $Specific_heap_size = 0;
3370 # if several heap sizes given, take the largest...
3371 } elsif ($heap_size >= $Specific_heap_size) {
3372 $Specific_heap_size = $heap_size;
3374 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n";
3378 /^(-K|Rmax-(stk|stack)size)(.*)/ && do {
3380 local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3);
3381 if ($stk_size =~ /(\d+)[Kk]$/) {
3382 $stk_size = $1 * 1000;
3383 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
3384 $stk_size = $1 * 1000 * 1000;
3385 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
3386 $stk_size = $1 * 1000 * 1000 * 1000;
3388 if ($stk_size <= 0) {
3389 print STDERR "$Pgm: resetting stack-size to zero!!! $stk_size\n";
3390 $Specific_stk_size = 0;
3392 # if several stack sizes given, take the largest...
3393 } elsif ($stk_size >= $Specific_stk_size) {
3394 $Specific_stk_size = $stk_size;
3396 print STDERR "$Pgm: ignoring stack-size-setting option ($flag $stk_size)...not the largest seen\n";
3400 /^-Rgc-stats$/ && do { $CollectingGCstats++;
3401 # the two RTSs do this diff ways; we will try to compensate
3404 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
3406 #---------- C high-level assembler (gcc) -------------------------------
3407 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
3409 # -dgcc-lint is a useful way of making GCC very fussy.
3410 # From alan@spri.levels.unisa.edu.au (Alan Modra).
3411 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
3412 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
3413 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
3415 # inject "#include <wurble>" into the compiler's C output!
3417 /^-#include(.*)/ && do {
3418 local($to_include) = &grab_arg_arg(*Args,'-#include', $1);
3419 push(@CcInjects, "#include $to_include\n");
3422 #---------- Linker (gcc, really) ---------------------------------------
3424 /^-static$/ && do { $Static=1; push(@Ld_flags, $_); next arg; };
3425 /^-no-hs-main$/ && do { $NoHaskellMain=1; next arg; };
3427 #---------- mixed cc and linker magic ----------------------------------
3428 # this optimisation stuff is finally sorted out later on...
3430 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
3432 /^-O[1-2]?$/ && do {
3433 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
3434 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
3436 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
3439 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
3441 /^-Ofile(.*)/ && do {
3443 local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1);
3444 @HsC_minusO3_flags = ();
3446 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
3449 s/\#.*//; # death to comments
3450 s/[ \t]+//g; # death to whitespace
3451 next if /^$/; # ditto, blank lines
3452 s/([()*{}])/\\$1/g; # protect shell metacharacters
3454 push(@CcBoth_flags, $1);
3456 push(@HsC_minusO3_flags, $_);
3462 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
3463 # in the consistency info
3467 #---------- linking .a file --------------------------------------------
3469 /^-Main(.*)/ && do {
3470 # specifies main or mainPrimIO to be linked
3474 #---------- catch unrecognized flags -----------------------------------
3477 print STDERR "$Pgm: unrecognised option: $_\n";
3483 } # end of processArgs