1 % (c) The GRASP/AQUA Project, Glasgow University, 1992-1997
4 This is the driver script for the Glasgow Haskell compilation system.
5 It is written in \tr{perl}. The first section includes a long
6 ``usage'' message that describes how the driver is supposed to work.
8 %************************************************************************
10 \section[Driver-usage]{Usage message}
12 %************************************************************************
15 ($Pgm = $0) =~ s|.*/||;
16 $ShortUsage = "\nUsage: For basic information, try the `-help' option.\n";
17 $LongUsage = "\n" . <<EOUSAGE;
18 Use of the Glorious Haskell Compilation System driver:
20 $Pgm [command-line-options-and-input-files]
22 ------------------------------------------------------------------------
23 This driver ($Pgm) guides each input file through (some of the)
24 possible phases of a compilation:
26 - unlit: extract code from a "literate program"
27 - hscpp: run code through the C pre-processor (if -cpp flag given)
28 - hsc: run the Haskell compiler proper
29 - gcc: run the C compiler (if compiling via C)
30 - as: run the assembler
33 For each input file, the phase to START with is determined by the
35 - .lhs literate Haskell: unlit
36 - .hs illiterate Haskell: hsc
37 - .hc C from the Haskell compiler: gcc
38 - .c C not from the Haskell compiler: gcc
39 - .s assembly language: as
40 - other passed directly to the linker: ld
42 If no files are given on the command line, input is taken from
43 standard input, and processing is as for an .hs file. (All output is
44 to stdout or stderr, however).
46 The phase at which to STOP processing is determined by a command-line
48 -E stop after generating preprocessed, de-litted Haskell (used in conjunction with -cpp)
49 -C stop after generating C (.hc output)
50 -S stop after generating assembler (.s output)
51 -c stop after generating object files (.o output)
53 Other commonly-used options are:
55 -O An `optimising' package of compiler flags, for faster code
57 -prof Compile for cost-centre profiling
58 (add -auto for automagic cost-centres on top-level functions)
60 -fglasgow-exts Allow Glasgow extensions (unboxed types, etc.)
62 -H14m Increase compiler's heap size
64 -M Output the Makefile rules recording the
65 dependencies of a list of Haskell files.
66 (ghc driver script calls upon the help of a
67 compatible mkdependHS script to do the actual
70 The User's Guide has more information about GHC's *many* options.
72 Given the above, here are some TYPICAL invocations of $Pgm:
74 # compile a Haskell module to a .o file, optimising:
76 # link three .o files into an executable called "test":
77 % $Pgm -o test Foo.o Bar.o Baz.o
78 # compile a Haskell module to C (a .hc file), using a bigger heap:
79 % $Pgm -C -H16m Foo.hs
80 # compile Haskell-produced C (.hc) to assembly language:
82 ------------------------------------------------------------------------
86 %************************************************************************
88 \section[Driver-init]{Initialisation}
90 %************************************************************************
92 The driver script need to be told where to find these executables, so
93 in the course of building the driver `executable', make-variables holding
94 these are prepended to the de-litted version of this file. The variables are:
99 HOSTPLATFORM TARGETPLATFORM
101 ProjectName ProjectVersion ProjectVersionInt ProjectPatchLevel
103 HscMajorVersion HscMinorVersion CcMajorVersion CcMinorVersion
107 bindir libdir libexecdir datadir
111 GHC_LIB_DIR GHC_RUNTIME_DIR GHC_UTILS_DIR GHC_INCLUDE_DIR
113 GHC_OPT_HILEV_ASM GhcWithNativeCodeGen
115 GHC_UNLIT GHC_HSCPP GHC_HSC GHC_SYSMAN
119 WAY_*_NAME WAY_*_HC_OPTS
125 Establish what executables to run for the various phases, what the
126 default options are for those phases, and other similar boring stuff.
129 select(STDERR); $| = 1; select(STDOUT); # no STDERR buffering, please.
131 $TargetPlatform = $TARGETPLATFORM;
133 $TopPwd = "${TOP_PWD}";
134 $InstBinDirGhc = "${bindir}";
135 $InstLibDirGhc = "${libdir}";
137 # Normally the same as InstLibDirGhc, but we accommodate
138 # for it being separate.
140 $InstLibExecDirGhc = "${libexecdir}";
141 $InstDataDirGhc = "${datadir}";
143 $Status = 0; # just used for exit() status
146 # set up signal handler
147 sub quit_upon_signal { &tidy_up_and_die(1, ''); }
148 $SIG{'INT'} = 'quit_upon_signal';
149 $SIG{'QUIT'} = 'quit_upon_signal';
151 # where to get "require"d .prl files at runtime (poor man's dynamic loading)
152 # (use LIB, not DATA, because we can't be sure of arch-independence)
153 @INC = ( ( $INSTALLING ) ? $InstLibDirGhc
154 : "$TopPwd/${CURRENT_DIR}" );
156 if ( $ENV{'TMPDIR'} ) { # where to make tmp file names
157 $Tmp_prefix = ($ENV{'TMPDIR'} . "/ghc$$");
159 print STDERR "TMPDIR has not been set to anything useful!\n" if (${TMPDIR} eq '');
160 $Tmp_prefix ="${TMPDIR}/ghc$$"; # TMPDIR set via Makefile when booting..
161 $ENV{'TMPDIR'} = ${TMPDIR}; # set the env var as well
164 # Some shells run into real trouble when command line and environment
165 # gets big (e.g., cmd lines of >4K to /bin/sh causes havoc on our
166 # Solaris-2.5.1 boxes - even though sysconf(_SC_ARG_MAX) reports 1M ...).
167 # To work around any such */bin/sh* problems, we will scribble such
168 # awfully long command lines into a temp file and exec that temp file
169 # with $(REAL_SHELL) (don't use the SHELL variable directly as this
170 # will normally get you the wrong thing when the driver is invoked
171 # from within `make'). If the REAL_SHELL variable isn't set, you'll
172 # get SHELL. This is all a terrible hack. (in case you hadn't reached
173 # the same conclusion by now :-)
177 if ( ! $ENV{'REAL_SHELL'} ) {
178 $ENV{'REAL_SHELL'} = $ENV{'SHELL'};
181 @Files_to_tidy = (); # files we nuke in the case of abnormal termination
183 $Unlit = ( $INSTALLING ) ? "$InstLibExecDirGhc/unlit"
184 : "$TopPwd/${CURRENT_DIR}/${GHC_UNLIT}";
188 $Diff = $CONTEXT_DIFF;
193 $HsCpp = # but this is re-set to "cat" (after options) if -cpp not seen
194 ( $INSTALLING ) ? "$InstLibExecDirGhc/hscpp"
195 : "$TopPwd/${CURRENT_DIR}/${GHC_HSCPP}";
198 $HsC = ( $INSTALLING ) ? "$InstLibExecDirGhc/hsc"
199 : "$TopPwd/${CURRENT_DIR}/${GHC_HSC}";
201 # For PVM fiends only
202 $SysMan = ( $INSTALLING ) ? "$InstLibExecDirGhc/SysMan"
203 : "$TopPwd/${CURRENT_DIR}/${GHC_SYSMAN}";
208 # HsC_rts_flags: if we want to talk to the LML runtime system
209 # NB: we don't use powers-of-2 sizes, because this may do
210 # terrible things to cache behavior.
212 $Specific_heap_size = 6 * 1000 * 1000;
213 $Specific_stk_size = 1000 * 1000;
214 $Scale_sizes_by = 1.0;
218 The variables set by @setupOptFlags@ represent parts of the
219 -O/-O2/etc ``templates,'' which are filled in later, using these.
220 These are the default values, which may be changed by user flags.
224 $Oopt_MaxSimplifierIterations = '-fmax-simplifier-iterations4';
225 $Oopt_PedanticBottoms = '-fpedantic-bottoms'; # ON by default
226 $Oopt_MonadEtaExpansion = '';
227 $Oopt_FinalStgProfilingMassage = '';
229 $Oopt_DoSpecialise = '-fspecialise';
230 $Oopt_FoldrBuild = 0; # *Off* by default!
231 $Oopt_FB_Support = ''; # was '-fdo-arity-expand';
232 # $Oopt_FoldrBuildWW = 0; # Off by default
233 $Oopt_FoldrBuildInline = ''; # was '-fdo-inline-foldr-build';
234 $Oopt_ShowSimplifierProgress = '';
235 } # end of setupOptFlags
237 # Assign defaults to these right away.
241 Things to do with C compilers/etc:
243 (added -Wimplicit: implicit prototypes cause very hard-to-find
244 problems, so I'm turing on the warnings -- SDM 4/5/98)
247 $CcRegd = $GHC_OPT_HILEV_ASM;
248 @CcBoth_flags = ('-S','-Wimplicit'); # flags for *any* C compilation
252 # those for all files,
253 # those only for .c files;
254 # those only for .hc files
257 @CcRegd_flags_c = ();
258 @CcRegd_flags_hc = ();
260 $As = ''; # "assembler" is normally GCC
263 $Lnkr = ''; # "linker" is normally GCC
266 # 'nm' is used for consistency checking (ToDo: mk-world-ify)
267 # ToDo: check the OS or something ("alpha" is surely not the crucial question)
268 $Nm = ($TargetPlatform =~ /^alpha-/) ? 'nm -B' : 'nm';
271 Warning packages that are controlled by -W and -Wall. The 'standard'
272 warnings that you get all the time are
274 -fwarn-overlapping-patterns
275 -fwarn-missing-methods
276 -fwarn-duplicate-exports
278 these are turned off by -Wnot.
281 @StandardWarnings = ('-fwarn-overlapping-patterns',
282 '-fwarn-missing-methods',
283 '-fwarn-duplicate-exports');
284 @MinusWOpts = (@StandardWarnings,
285 '-fwarn-incomplete-patterns',
286 '-fwarn-unused-binds',
287 '-fwarn-unused-imports');
288 @MinusWallOpts = (@MinusWOpts,
289 '-fwarn-unused-matches',
290 '-fwarn-name-shadowing',
291 '-fwarn-missing-signatures');
294 What options \tr{-user-setup-a} turn into (user-defined ``packages''
296 of options). Note that a particular user-setup implies a particular
297 Prelude ({\em including} its interface file(s)).
299 $BuildTag = ''; # default is sequential build w/ Appel-style GC
301 %BuildDescr = (# system ways begin
302 '', 'normal sequential',
306 '_mp', "$WAY_mp_NAME",
307 '_mg', "$WAY_mg_NAME",
325 '_B', "$WAY_B_NAME" );
327 # these are options that are "fed back" through the option processing loop
331 '_a', "$WAY_a_HC_OPTS",
332 '_b', "$WAY_b_HC_OPTS",
333 '_c', "$WAY_c_HC_OPTS",
334 '_d', "$WAY_d_HC_OPTS",
335 '_e', "$WAY_e_HC_OPTS",
336 '_f', "$WAY_f_HC_OPTS",
337 '_g', "$WAY_g_HC_OPTS",
338 '_h', "$WAY_h_HC_OPTS",
339 '_i', "$WAY_i_HC_OPTS",
340 '_j', "$WAY_j_HC_OPTS",
341 '_k', "$WAY_k_HC_OPTS",
342 '_l', "$WAY_l_HC_OPTS",
343 '_m', "$WAY_m_HC_OPTS",
344 '_n', "$WAY_n_HC_OPTS",
345 '_o', "$WAY_o_HC_OPTS",
346 '_A', "$WAY_A_HC_OPTS",
347 '_B', "$WAY_B_HC_OPTS",
350 '_p', "$WAY_p_HC_OPTS",
351 '_t', "$WAY_t_HC_OPTS",
352 '_u', "$WAY_u_HC_OPTS",
353 '_mp', "$WAY_mp_HC_OPTS",
354 '_mg', "$WAY_mg_HC_OPTS");
358 Import/include directories (\tr{-I} options) are sufficiently weird to
359 require special handling.
362 @Import_dir = ('.'); #-i things
363 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
365 # where to look for interface files (system hi's, i.e., prelude and syslibs)
366 @SysImport_dir = ( $INSTALLING )
367 ? ( "$InstLibDirGhc/imports/std" )
368 : ( "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std" );
370 # We need to look in ghc/ and glaExts/ when searching for implicitly needed .hi files, but
371 # we should really *not* look there for explicitly imported modules.
373 $Haskell1Version = 5; # i.e., Haskell 1.4
376 # Cpp symbols defined when we're processing Haskell source.
379 ( "-D__HASKELL1__=$Haskell1Version"
380 , "-D__GLASGOW_HASKELL__=$ProjectVersionInt"
382 # , "-D__CONCURRENT_HASKELL__"
385 @UserLibrary_dir= (); #-L things;...
386 @UserLibrary = (); #-l things asked for by the user
388 @SysLibrary_dir = ( ( $INSTALLING ) #-syslib things supplied by the system
390 : ( "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR"
391 , "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/gmp"
392 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std"
393 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std/cbits"
396 @SysLibrary = (); # will be built up as we go along
398 $TopClosureFile # defaults to 1.2 one; will be mangled later
400 # ( $INSTALLING) ? "$InstLibDirGhc/TopClosureXXXX.o"
401 # : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/main/TopClosureXXXX.o";
403 # make depend for Haskell
405 = ( $INSTALLING ) ? "$InstBinDirGhc/mkdependHS"
406 : "$TopPwd/$CURRENT_DIR/$GHC_UTILS_DIR/mkdependHS/mkdependHS";
408 @MkDependHS_flags = ();
410 # do_link flag should not be reset while rescanning the cmd-line.
412 $Specific_output_dir = ''; # set by -odir <dir>
413 $Specific_output_file = ''; # set by -o <file>; "-" for stdout
416 Function to initialise the per-compilation-unit globals that
417 are used to guide and control the invocation of the different phases.
420 sub initDriverGlobals {
422 # reset the following options:
423 # RTS flags to use while compiling
425 @HsP_flags = (); # these are the flags destined solely for
426 # the flex/yacc parser
431 The optimisations/etc to be done by the compiler are {\em normally}
432 expressed with a \tr{-O} (or \tr{-O2}) flag, or by its absence.
435 $OptLevel = 0; # no -O == 0; -O == 1; -O2 == 2; -Ofile == 3
436 $MinusO2ForC = 0; # set to 1 if -O2 should be given to C compiler
437 $StolenX86Regs = 4; # **HACK*** of the very worst sort
441 @Import_dir = ('.'); #-i things
442 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
447 We are given a list of files with various presumably-known suffixes
448 (unknown-suffix files go straight to the linker). For each file, we
449 begin by assuming that we'll run every phase over it. However: (1)
450 global flags (\tr{-c}, \tr{-S}, etc.) tell us not to run any phase
451 past a certain point; and (2) the file's suffix tells us what phase to
452 start with. Linking is weird and kept track of separately.
454 Here are the initial defaults applied to all files:
456 $Cpp_flag_set = 0; # (hack)
457 $Only_preprocess_C = 0; # pretty hackish
458 $Only_preprocess_hc = 0; # ditto
459 $Only_generate_deps = 0; # "
460 $PostprocessCcOutput = 0;
462 # native code-gen or via C?
463 $HaveNativeCodeGen = $GhcWithNativeCodeGen;
464 $HscOut = '-C='; # '-C=' ==> .hc output; '-S=' ==> .s output; '-N=' ==> neither
466 if $HaveNativeCodeGen && $TargetPlatform =~ /^(alpha)-/;
467 # TEMP: disable x86 & Sparc if $HaveNativeCodeGen && $TargetPlatform =~ /^(i386|alpha|sparc)-/;
468 $ProduceHi = '-hifile=';
474 $CollectingGCstats = 0;
475 $CollectGhcTimings = 0;
476 $DEBUGging = ''; # -DDEBUG and all that it entails (um... not really)
477 $PROFing = ''; # set to p or e if profiling
478 $PROFgroup = ''; # set to group if an explicit -Ggroup specified
479 $PROFauto = ''; # set to relevant hsc flag if -auto or -auto-all
480 $PROFcaf = ''; # set to relevant hsc flag if -caf-all
481 $PROFignore_scc = ''; # set to relevant parser flag if explicit sccs ignored
482 $UNPROFscc_auto = ''; # set to relevant hsc flag if forcing auto sccs without profiling
483 $TICKYing = ''; # set to t if compiling for ticky-ticky profiling
484 $PARing = ''; # set to p if compiling for PAR
485 $GRANing = ''; # set to g if compiling for GRAN
486 $Specific_hi_file = ''; # set by -ohi <file>; "-" for stdout
487 $Specific_dump_file = ''; # set by -odump <file>; "-" for stdout
488 $Using_dump_file = 0;
490 $Osuffix = ''; # default: use the normal suffix for that kind of output
492 $HiSuffix_prelude = '';
493 $Do_recomp_chkr = 0; # don't use the recompilatio checker unless asked
494 $Do_cc = -1; # a MAGIC indeterminate value; will be set to 1 or 0.
497 $Keep_hc_file_too = 0;
498 $Keep_s_file_too = 0;
499 $UseGhcInternals = 0; # if 1, may use GHC* modules
501 $DoAsmMangling = 1; # on by default, off by -fno-asm-mangling
503 $Dump_parser_output = 0;
505 $Dump_asm_splitting_info = 0;
506 $NoImplicitPrelude = 0;
507 # 1 => don't tell the linker to hoist in PrelMain.Main, as an
508 # external main is provided instead.
511 } # end of initDriverGlobals (Sigh)
513 # we split the argv passed to the driver into three:
518 # and files to be linked...
524 # cmd line options prefixing the unit we're compiling
529 We inject consistency-checking information into \tr{.hc} files (both
530 when created by the Haskell compiler and when compiled by the C
531 compiler), so that we can check that an executable is made from
532 consistently-built pieces. (The check is normally done just after
533 linking.) The checking is done by introducing/munging
534 \tr{what(1)}-style strings. Anyway, here are the relevant global
535 variables and their defaults:
537 $LinkChk = 0; # set to 0 if the link check should *not* be done
539 # major & minor version numbers; major numbers must always agree;
540 # minor disagreements yield a warning.
541 $HsC_major_version = $HscMajorVersion;
542 $HsC_minor_version = $HscMinorVersion;
543 $Cc_major_version = $CcMajorVersion;
544 $Cc_minor_version = $CcMinorVersion;
546 # options: these must always agree
547 $HsC_consist_options = ''; # we record, in this order:
548 # Build tag; debugging?
549 $Cc_consist_options = ''; # we record, in this order:
550 # Build tag; debugging?
553 %************************************************************************
555 \section[Driver-parse-argv]{Munge the command-line options}
557 %************************************************************************
559 Now slurp through the arguments.
562 &initDriverGlobals();
563 &splitCmdLine(@ARGV);
564 # Run through the cmd-line first time.
565 &processArgs(@Cmd_opts);
567 # Check to see if driver is only in the business
568 # to generate dependencies
569 if ( $Status == 0 && $Only_generate_deps ) {
571 push (@MkDependHS_flags, "-o$Osuffix") if $Osuffix;
572 push (@MkDependHS_flags, "-s$BuildTag") if $BuildTag;
573 # They're not (currently) needed, but we need to quote any -#include options
574 foreach (@Cmd_opts) {
575 s/-#include.*$/'$&'/g;
577 local($to_do) = "$MkDependHS @MkDependHS_flags @HsSourceCppOpts -- @Cmd_opts -- @Input_file" ;
578 &run_something($to_do, 'Haskell dependencies');
582 # if there are several input files,
583 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
584 # (except if linking, of course)
586 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
587 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
588 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
589 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
590 print STDERR "\tPerhaps the -odir option will do what you want.\n";
595 # check for various pathological -o and -odir combinations...
596 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
597 if ($Specific_output_file eq '-') {
598 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
600 } else { # amalgamate...
601 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
602 # ToDo: check we haven't got a junk name now...
603 $Specific_output_dir = ''; # reset
607 # crash and burn if there were errors
609 print STDERR $ShortUsage;
614 %************************************************************************
616 \section[Driver-post-argv-mangling]{Setup after reading options}
618 %************************************************************************
620 %************************************************************************
622 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
624 %************************************************************************
626 We come now to the default ``wads of options'' that are turned on by
627 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
628 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
631 The user can also specify his/her own list of options in a file; in
632 that case, the work is already done (see stuff about @minusO3@,
635 GHC allows very precise control of what happens during a compilation.
636 Core-to-Core and STG-to-STG passes can be run in any order, as many
637 times as you like. Individual transformations can be turned on or
640 Sadly, however, there are some interdependencies \& Things You Must
641 Not Do. Here is the list.
645 \item[\tr{-fspecialise}:]
646 The specialiser must have dependency-analysed input; but if you run
647 the simplifier to do this, you must not let it toss away unused
648 bindings! (The typechecker conveys some specialisation info via
649 ``unused'' bindings...)
651 \item[\tr{-ffloat-inwards}:]
652 Floating inwards should be done before strictness analysis, because
653 the latter will give better results.
655 \item[\tr{-fstatic-args}:]
656 The static-arguments-transformation pass {\em must} have the
657 simplifier run right after it.
659 \item[\tr{-fcalc-inlinings[12]}:]
660 Not required, but there may be slight gains by re-simplifying after
661 this is done. (You could then \tr{-fcalc-inlinings} again, just for
664 \item[\tr{-ffull-laziness}:]
665 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
666 that's run. (Um, well, howzabout the simplifier just once more...)
671 \item[\tr{-fupdate-analysis}:]
672 It really really wants to be the last STG-to-STG pass that is run.
677 sub setupOptimiseFlags {
683 '-ffloat-lets-exposing-whnf',
684 '-ffloat-primops-ok',
687 # '-fdo-lambda-eta-expansion', # too complicated
689 # '-flet-to-case', # no strictness analysis, so...
690 $Oopt_PedanticBottoms,
691 # $Oopt_MonadEtaExpansion, # no thanks
693 # These two work fine, if you really want no simplification at all,
694 # for bizarre test reasons. But you get really terrible code if you use them,
695 # for example: let x = e in x
696 # with dozens of redundant thunks etc. So I'm leaving them out.
698 # '-fsimpl-uf-use-threshold0',
699 # '-fessential-unfoldings-only',
702 # The presence of -fclone-binds is *temporary* to work around
703 # the fact that the desugarer in 3.0{2.3} does generate
704 # bindings with identical ids, and the type checker doesn't perform
705 # properly cloned type substitutions. Instead, we make sure that all
706 # binders are cloned first time through the simplifier.
708 # Will be properly fixed in the `new compiler` I hear, at which point
709 # the cloning can be turned off here.
714 $Oopt_MaxSimplifierIterations,
715 $Oopt_ShowSimplifierProgress,
718 # '-ffull-laziness', # removed 95/04 WDP following Andr\'e's lead
720 $Oopt_FinalStgProfilingMassage
723 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
725 '-fdo-eta-reduction',
727 # initial simplify: mk specialiser happy: minimum effort please
731 '-fkeep-spec-pragma-ids', # required before specialisation
733 # I don't understand why we want -fessential-unfoldings-only here
734 # If we have it, the following nasty thing happens:
738 # where "*" means exported.
739 # In the essential-unfoldings pass we still substitute f for g
740 # but we don't substitute E for f first. So we get
744 # The g=f will get reverse-substituted later, but it's untidy. --SLPJ
746 # SDM: Here's why it's necessary.
748 # If we unfold in the first pass before the specialiser is run
749 # we miss opportunities for specialisation because eg. wrappers
750 # have been inlined for specialisable functions.
752 # This shows up in PrelArr.lhs - the specialised instance for newArray
753 # calls the generic rangeSize, because rangeSize is strict and is
754 # replaced by its wrapper by the simplifier.
756 '-fessential-unfoldings-only',
757 '-fsimpl-uf-use-threshold0',
759 # See remark re: cloning in defn of minusnotO
762 '-fmax-simplifier-iterations1',
763 $Oopt_PedanticBottoms,
766 ($Oopt_DoSpecialise) ? (
770 '-fsimplify', # need dependency anal after specialiser ...
771 '[', # need tossing before calc-inlinings ...
773 '-ffloat-lets-exposing-whnf',
774 '-ffloat-primops-ok',
778 # '-fdo-eta-reduction',
779 '-fdo-lambda-eta-expansion',
781 $Oopt_PedanticBottoms,
782 $Oopt_MonadEtaExpansion,
783 $Oopt_MaxSimplifierIterations,
784 $Oopt_ShowSimplifierProgress,
786 # The presence of -fclone-binds is *crucial* here as
787 # -ffull-laziness (which we're about to do next) floats
788 # bindings outwards, so we better make sure that this
789 # doesn't result in the floating out of bindings
790 # with identical uniques, i.e., -ffull-laziness needs
791 # to be preceeded by a simplifier pass with -fclone-binds
796 # ($Oopt_FoldrBuildWW) ? (
797 # '-ffoldr-build-ww-anal',
798 # '-ffoldr-build-worker-wrapper',
802 # '-ffloat-lets-exposing-whnf',
803 # '-ffloat-primops-ok',
807 # '-fdo-eta-reduction',
808 # '-fdo-lambda-eta-expansion',
810 # $Oopt_PedanticBottoms,
811 # $Oopt_MonadEtaExpansion,
812 # $Oopt_MaxSimplifierIterations,
813 # $Oopt_ShowSimplifierProgress,
817 # this pass-ordering sequence was agreed by Simon and Andr\'e
818 # (WDP 94/07, 94/11).
821 ($Oopt_FoldrBuild) ? (
822 '-ffoldr-build-on', # desugar list comprehensions for foldr/build
826 '-fignore-inline-pragma', # **** NB!
827 '-fdo-foldr-build', # NB
829 '-ffloat-lets-exposing-whnf',
830 '-ffloat-primops-ok',
834 # '-fdo-eta-reduction',
835 '-fdo-lambda-eta-expansion', # After full laziness
837 $Oopt_PedanticBottoms,
838 $Oopt_MonadEtaExpansion,
839 $Oopt_MaxSimplifierIterations,
840 $Oopt_ShowSimplifierProgress,
849 '-ffloat-lets-exposing-whnf',
850 '-ffloat-primops-ok',
854 '-fdo-eta-reduction',
855 '-fdo-lambda-eta-expansion',
857 ($Oopt_FoldrBuildInline),
858 # you need to inline foldr and build
859 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
860 # but do reductions if you see them!
861 $Oopt_PedanticBottoms,
862 $Oopt_MonadEtaExpansion,
863 $Oopt_MaxSimplifierIterations,
864 $Oopt_ShowSimplifierProgress,
872 '-ffloat-lets-exposing-whnf',
873 '-ffloat-primops-ok',
877 # '-fdo-eta-reduction',
878 '-fdo-lambda-eta-expansion',
880 '-flet-to-case', # Aha! Only done after strictness analysis
881 $Oopt_PedanticBottoms,
882 $Oopt_MonadEtaExpansion,
883 $Oopt_MaxSimplifierIterations,
884 $Oopt_ShowSimplifierProgress,
889 # Case-liberation for -O2. This should be after
890 # strictness analysis and the simplification which follows it.
894 # : "-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 ]" ),
896 # Final clean-up simplification:
901 '-ffloat-lets-exposing-whnf',
902 '-ffloat-primops-ok',
906 # '-fdo-eta-reduction',
907 '-fdo-lambda-eta-expansion',
910 '-fignore-inline-pragma', # **** NB!
911 $Oopt_FoldrBuildInline,
912 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
913 # but still do reductions if you see them!
914 $Oopt_PedanticBottoms,
915 $Oopt_MonadEtaExpansion,
916 $Oopt_MaxSimplifierIterations,
917 $Oopt_ShowSimplifierProgress,
922 #LATER: '-fcalc-inlinings2', -- pointless for 2.01
926 $Oopt_FinalStgProfilingMassage,
932 # SPECIAL FLAGS for -O2
934 '-fupdate-analysis', # virtually useless; relegated to -O2
941 Sort out what we're going to do about optimising. First, the @hsc@
942 flags and regular @cc@ flags to worry about:
944 if ( $OptLevel <= 0 ) {
946 # for this level, we tell the parser -fignore-interface-pragmas
947 push(@HsC_flags, '-fignore-interface-pragmas');
948 # and tell the compiler not to produce them
949 push(@HsC_flags, '-fomit-interface-pragmas');
951 &add_Hsc_flags( @HsC_minusNoO_flags );
952 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
954 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
956 &add_Hsc_flags( @HsC_minusO_flags );
957 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
958 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
959 # but it *is* useful in compiling the garbage collector.
961 } else { # -Ofile, then...
963 &add_Hsc_flags( @HsC_minusO3_flags );
964 push(@HsC_flags, $Oopt_FinalStgProfilingMassage) if $Oopt_FinalStgProfilingMassage;
966 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
969 } # setupOptimiseFlags
973 %************************************************************************
975 \subsection{Check for consistency, etc.}
977 %************************************************************************
979 Sort out @$BuildTag@, @$PROFing@, @$PARing@,
980 @$GRANing@, @$TICKYing@:
982 sub setupBuildFlags {
985 # PROFILING stuff after argv mangling:
987 # warn about any scc exprs found (in case scc used as identifier)
988 push(@HsP_flags, '-W');
990 # add -auto sccs even if not profiling !
991 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
994 push(@HsC_flags, $PROFauto) if $PROFauto;
995 push(@HsC_flags, $PROFcaf) if $PROFcaf;
996 #push(@HsC_flags, $PROFdict) if $PROFdict;
998 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
1000 # Ignore user sccs when auto annotating, but warn when doing so.
1001 $PROFignore_scc = '-W' if $PROFauto;
1003 push(@HsP_flags, (($PROFignore_scc) ? $PROFignore_scc : '-S'));
1005 #if ( $BuildTag ne '' ) {
1006 # local($b) = $BuildDescr{$BuildTag};
1007 # if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
1008 # if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
1009 # if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
1011 # # ok to have a user-way profiling build
1012 # # eval the profiling opts ... but leave user-way BuildTag
1013 # if ($PROFing eq 'p') { &processArgs(split(' ', $SetupOpts{'_p'})); } # eval($EvaldSetupOpts{'_p'}); }
1015 if ( $PROFing eq 'p' ) {
1016 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
1017 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
1018 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
1021 } elsif ( $PARing eq 'p' ) {
1022 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
1023 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
1026 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
1027 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
1031 } elsif ( $GRANing eq 'g' ) {
1032 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
1035 } elsif ( $TICKYing eq 't' ) {
1041 After the sanity checks, add flags to the necessary parts of the driver pipeline:
1044 if ( $BuildTag ne '' ) { # something other than normal sequential...
1046 local($Tag) = "${BuildTag}";
1047 $Tag =~ s/_//; # move the underscore to the back
1049 $HscOut = '-C='; # must go via C
1050 &processArgs(split(' ', $SetupOpts{$BuildTag}));
1051 # eval($EvaldSetupOpts{$BuildTag});
1055 Decide what the consistency-checking options are in force for this run:
1058 $HsC_consist_options = "${BuildTag},${DEBUGging}";
1059 $Cc_consist_options = "${BuildTag},${DEBUGging}";
1062 # Funny place to put it, but why not.
1064 if ( $HiSuffix_prelude eq '' ) {
1065 local($Tag) = "${BuildTag}";
1067 $Tag = "${Tag}_" if $Tag ne '';
1068 $HiSuffix_prelude="${Tag}hi";
1073 %************************************************************************
1075 \subsection{Add on machine-specific C-compiler flags}
1077 %************************************************************************
1079 Shove on magical machine-specific options. We use \tr{unshift} to
1080 stick them on the {\em front} of the arrays, so that ``later''
1081 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
1083 Note: a few ``always apply'' flags were set at the very beginning.
1088 if ($TargetPlatform =~ /^alpha-/) {
1089 unshift(@CcBoth_flags, ('-static'));
1091 } elsif ($TargetPlatform =~ /^hppa/) {
1092 unshift(@CcBoth_flags, ('-static'));
1094 # We don't put in '-mlong-calls', because it's only
1095 # needed for very big modules (sigh), and we don't want
1096 # to hobble ourselves further on all the other modules
1099 # [Dated comment (gcc-2.6.x?), -mlong-calls is no longer
1100 # a supported gcc HPPA flag]
1101 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
1102 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
1103 # (very nice, but too bad the HP /usr/include files don't agree.)
1105 } elsif ($TargetPlatform =~ /^i386-/) {
1106 # -fno-defer-pop : basically the same game as for m68k
1108 # -fomit-frame-pointer : *must* in .hc files; because we're stealing
1109 # the fp (%ebp) for our register maps.
1111 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1112 unshift(@CcRegd_flags_hc, '-fomit-frame-pointer');
1113 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1115 } elsif ($TargetPlatform =~ /^m68k-/) {
1116 # -fno-defer-pop : for the .hc files, we want all the pushing/
1117 # popping of args to routines to be explicit; if we let things
1118 # be deferred 'til after an STGJUMP, imminent death is certain!
1120 # -fomit-frame-pointer : *don't*
1121 # It's better to have a6 completely tied up being a frame pointer
1122 # rather than let GCC pick random things to do with it.
1123 # (If we want to steal a6, then we would try to do things
1124 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1126 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1127 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1128 # maybe gives reg alloc a better time
1129 # also: -fno-defer-pop is not sufficiently well-behaved without it
1131 } elsif ($TargetPlatform =~ /^mips-/) {
1132 unshift(@CcBoth_flags, ('-static'));
1134 } elsif ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1135 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1136 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1137 } elsif ($TargetPlatform =~ /^sparc-/) {
1139 } # end of setupMachOpts
1142 %************************************************************************
1144 \subsection{Set up for warnings}
1146 %************************************************************************
1148 Several warnings are turned on by default. These are supposed to be
1149 the 'I'm pretty sure you've made a mistake here' kind of warnings.
1150 The rest are turned on by the -W and -Wall options, or individually
1151 via their -fwarn and -fno-warn flags.
1154 sub setupWarningFlags {
1155 &add_Hsc_flags( @StandardWarnings );
1159 Same unshifting magic, but for special linker flags.
1161 The configure script determines whether the object file symbol tables
1162 have a leading underscore, and sets @LeadingUnderscore@ accordingly.
1163 (The driver script `sees' the setting of the @LeadingUnderscore@
1164 by having the Makefile prepend it).
1168 local($uscore) = ( ${LeadingUnderscore} eq 'YES' ) ? '_' : '';
1171 (($Ld_main) ? ( '-u', "${uscore}Main_" . $Ld_main . '_closure' ) : ()));
1173 # things that are referenced by the RTS - make sure that we pull 'em in
1175 ( '-u', "${uscore}PrelBase_IZh_static_info"
1176 ,'-u', "${uscore}PrelBase_CZh_static_info"
1177 ,'-u', "${uscore}PrelBase_FZh_static_info"
1178 ,'-u', "${uscore}PrelBase_DZh_static_info"
1179 ,'-u', "${uscore}PrelAddr_AZh_static_info"
1180 ,'-u', "${uscore}PrelAddr_WZh_static_info"
1181 ,'-u', "${uscore}PrelAddr_I64Zh_static_info"
1182 ,'-u', "${uscore}PrelAddr_W64Zh_static_info"
1183 ,'-u', "${uscore}PrelForeign_StablePtr_static_info"
1184 ,'-u', "${uscore}PrelBase_IZh_con_info"
1185 ,'-u', "${uscore}PrelBase_CZh_con_info"
1186 ,'-u', "${uscore}PrelBase_FZh_con_info"
1187 ,'-u', "${uscore}PrelBase_DZh_con_info"
1188 ,'-u', "${uscore}PrelAddr_AZh_con_info"
1189 ,'-u', "${uscore}PrelAddr_WZh_con_info"
1190 ,'-u', "${uscore}PrelAddr_I64Zh_con_info"
1191 ,'-u', "${uscore}PrelAddr_W64Zh_con_info"
1192 ,'-u', "${uscore}PrelForeign_StablePtr_con_info"
1193 ,'-u', "${uscore}PrelBase_False_static_closure"
1194 ,'-u', "${uscore}PrelBase_True_static_closure"
1195 ,'-u', "${uscore}PrelPack_unpackCString_closure"
1197 if (!$NoHaskellMain) {
1198 unshift (@Ld_flags,'-u', "${uscore}PrelMain_mainIO_closure");
1200 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1201 # sometimes we have lots of toc entries...
1202 # unshift(@Ld_flags, ('-Xlinker -bbigtoc -Xlinker -bnoquiet'));
1203 unshift(@Ld_flags, ('-Xlinker -bbigtoc'));
1206 } # end of setupLinkOpts
1210 %************************************************************************
1212 \subsection{Set up include paths and system-library enslurpment}
1214 %************************************************************************
1216 Now that we know what garbage-collector, etc., are required, we can
1217 finalise our list of libraries to slurp through, and generally Get
1222 # default includes must be added AFTER option processing
1223 if ( ! $INSTALLING ) {
1224 push (@Include_dir, "$TopPwd/${CURRENT_DIR}/${GHC_INCLUDE_DIR}");
1226 push (@Include_dir, "$InstLibDirGhc/includes");
1227 push (@Include_dir, "$InstLibDirGhc/includes");
1229 } # end of setupIncPaths
1234 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1237 foreach $f (@SysLibrary) {
1238 next if $f =~ /_cbits/;
1239 $f .= $BuildTag if $f =~ /^-lHS/;
1242 # Push library HSrts, plus boring clib bit
1243 push(@SysLibrary, "-lHSrts${BuildTag}");
1246 # RTS compiled with cygwin32, uses the WinMM API
1247 # to implement the itimers, since cygwin.dll does not
1248 # support it. Only reqd. for `ways' that use itimers.
1250 push(@SysLibrary, '-lwinmm') if $TargetPlatform eq 'i386-unknown-cygwin32';
1252 # Push the pvm libraries
1253 if ($BuildTag eq '_mp') {
1254 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1255 push(@SysLibrary, "-L$pvmlib", '-lgpvm3', '-lpvm3');
1256 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1257 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1258 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1259 push(@SysLibrary, '-lsocket', '-lnsl');
1263 # Push the GNU multi-precision arith lib; and the math library
1265 # If this machine has GMP already installed, then we'll get the installed
1266 # lib here, because presumably the one in the tree won't have been built.
1268 if ($LibGmp eq 'not-installed') {
1269 push(@SysLibrary, "-lgmp");
1271 push(@SysLibrary, "-l$LibGmp");
1274 push(@SysLibrary, '-lm');
1277 %************************************************************************
1279 \subsection{Check that this system was built to do what we are asking}
1281 %************************************************************************
1283 Before continuing we check that the appropriate build is available.
1286 #die "$Pgm: no BuildAvail?? $BuildTag\n" if $BuildDescr{$BuildTag} eq '' ; # sanity
1288 if ( $BuildDescr{$BuildTag} eq '' ) {
1289 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1290 "' \"build\" is not available with your GHC setup.\n";
1291 print STDERR "(It was not configured for it at your site.)\n";
1292 print STDERR $ShortUsage;
1296 } # end of setupSyslibs
1300 %************************************************************************
1302 \subsection{Final miscellaneous setup bits before we start going}
1304 %************************************************************************
1306 Record largest specific heapsize, if any.
1308 sub setupHeapStackSize {
1309 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1310 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1311 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1312 push(@HsC_rts_flags, "-K$Specific_stk_size");
1316 If no input or link files seen, then we let 'em feed in stdin; this is
1317 mainly for debugging.
1321 if ($#Input_file < 0 && $#Link_file < 0) {
1322 @Input_file = ( '-' );
1324 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1325 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n" if -t;
1326 while (<STDIN>) { print INF $_; }
1327 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1332 Tell the world who we are, if they asked.
1334 print STDERR "${ProjectName}, version ${ProjectVersion}, patchlevel ${ProjectPatchLevel}\n"
1338 %************************************************************************
1340 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1342 %************************************************************************
1344 Process the input files; don't continue with linking if there are
1345 problems (global variable @$Status@ non-zero).
1347 foreach $ifile (@Input_file) {
1348 &ProcessInputFile($ifile);
1351 if ( $Status > 0 ) { # don't link if there were errors...
1352 print STDERR $ShortUsage;
1357 # append last minute flags linker and consistency flags
1364 Link if appropriate.
1367 local($libdirs) = '';
1369 # glue them together:
1370 push(@UserLibrary_dir, @SysLibrary_dir);
1372 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1374 # for a linker, use an explicitly given one, or the going C compiler ...
1375 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1377 if ( ($Specific_output_file eq '') &&
1378 ($TargetPlatform eq 'i386-unknown-cygwin32') ) {
1379 $Specific_output_file = 'main.exe';
1380 print STDERR "Output file not specified, defaulting to \"main.exe\"\n";
1383 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1384 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1386 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $TopClosureFile $libdirs @UserLibrary @SysLibrary";
1387 &run_something($to_do, 'Linker');
1389 # finally, check the consistency info in the binary
1390 local($executable) = $Files_to_tidy[0];
1391 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1394 # dynamically load consistency-chking code; then do it.
1395 require('ghc-consist.prl')
1396 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1398 &chk_consistency_info ( $executable );
1401 # if PVM parallel stuff, we do truly weird things.
1402 # Essentially: (1) move the executable over to where PVM expects
1403 # to find it. (2) create a script in place of the executable
1404 # which will cause the program to be run, via SysMan.
1405 if ( $PARing eq 'p' ) {
1406 local($pvm_executable) = $executable;
1407 local($pvm_executable_base);
1409 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1410 local($pwd) = `pwd`;
1412 $pwd =~ s/^\/tmp_mnt//;
1413 $pvm_executable = "$pwd/$pvm_executable";
1416 $pvm_executable =~ s|/|=|g; # make /s into =s
1417 $pvm_executable_base = $pvm_executable;
1419 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1420 . "/$pvm_executable";
1422 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1424 # OK, now create the magic script for "$executable"
1425 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1426 print EXEC <<EOSCRIPT1;
1427 eval 'exec perl -S \$0 \${1+"\$@"}'
1428 if \$running_under_some_shell;
1429 # =!=!=!=!=!=!=!=!=!=!=!
1430 # This script is automatically generated: DO NOT EDIT!!!
1431 # Generated by Glasgow Haskell, version ${ProjectVersion} ${ProjectPatchLevel}
1433 \$pvm_executable = '$pvm_executable';
1434 \$pvm_executable_base = '$pvm_executable_base';
1435 \$SysMan = '$SysMan';
1438 print EXEC <<\EOSCRIPT2;
1439 # first, some magical shortcuts to run "commands" on the binary
1441 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1443 system("$cmd $pvm_executable");
1447 # OK, really run it; process the args first
1448 $ENV{'PE'} = $pvm_executable_base;
1450 $nprocessors = 2; # the default
1454 # ToDo: handle --RTS
1455 args: while ($a = shift(@ARGV)) {
1456 if ( $a eq '+RTS' ) {
1458 } elsif ( $a eq '-RTS' ) {
1461 if ( $a eq '-d' && $in_RTS_args ) {
1463 } elsif ( $a =~ /^-N(\d+)/ && $in_RTS_args ) {
1466 push(@nonPVM_args, $a);
1470 local($return_val) = 0;
1471 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
1473 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
1476 close(EXEC) || die "Failed closing $executable\n";
1477 chmod 0755, $executable;
1481 # that... that's all, folks!
1483 exit $Status; # will still be 0 if all went well
1486 %************************************************************************
1488 \section[Driver-do-one-file]{How to process a single input file}
1490 %************************************************************************
1493 sub ProcessInputFile {
1494 local($ifile) = @_; # input file name
1495 local($ifile_root); # root of or basename of input file
1496 local($ofile_target); # ultimate output file we hope to produce
1497 # from input file (need to know for recomp
1498 # checking purposes)
1499 local($hifile_target);# ditto (but .hi file)
1500 local($ofile_c_stub_target);
1501 local($ofile_h_stub_target);
1504 Handle the weirdity of input from stdin.
1506 if ($ifile ne '-') {
1507 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1508 $ofile_target = # may be reset later...
1509 ($Specific_output_file ne '' && ! $Do_lnkr)
1510 ? $Specific_output_file
1511 : &odir_ify($ifile_root, 'o');
1512 $hifile_target= ($Specific_hi_file ne '')
1514 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1515 # NB: may change if $ifile_root isn't module name (??)
1516 ($ofile_c_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.c/;
1517 ($ofile_h_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.h/;
1519 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1520 $ifile_root = '_stdin';
1521 $ofile_target = '_stdout'; # gratuitous?
1522 $hifile_target= '_stdout'; # ditto?
1526 We need to decide what phases of the compilation system we will run
1527 over this file. The defaults are the ones established when processing
1528 flags. (That established what the last phase run for all files is.)
1530 We do the pre-recompilation-checker phases here; the rest later.
1534 Look at the suffix and decide what initial phases of compilation may
1535 be dropped off for this file. Also the rather boring business of
1536 which files are coming-in/going-out.
1538 Again, we'll do the post-recompilation-checker parts of this later.
1540 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1541 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1544 # names of the files to stuff between phases
1545 # defaults are temporaries
1546 local($in_lit2pgm) = $ifile;
1547 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1548 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1549 local($hsc_hi) = "$Tmp_prefix.hi";
1550 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1551 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1552 local($as_out) = $ofile_target;
1554 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
1556 # OK, let's strip off some literate junk..
1558 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
1560 $lit2pgm_hscpp = $ifile;
1566 # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas
1567 &check_for_source_options($lit2pgm_hscpp,$ifile);
1569 # Options found in the source file take a back seat, i.e., we scan
1570 # them first. Only process the command line again if source file
1571 # contained anything of interest *or* there's more than one
1572 # input file (we have to reset the options).
1574 if ( $#Input_file >= 0 || $#File_options >= 0) {
1575 #@File_options = (@File_options, @Cmd_opts);
1577 # Now process the command line
1578 &initDriverGlobals();
1579 &processArgs((@File_options,@Cmd_opts));
1580 print STDERR "\nEffective command line: " .
1581 join(' ',(@File_options,@Cmd_opts)) . "\n" if $Verbose;
1584 # Having got the effective command line scanned, set up
1585 # the various options in prep for some real work.
1587 # check the sanity of the BuildTag we're about to use,
1588 # and if needs be, add some more flags and setup to
1589 # the different phases.
1592 &setupOptimiseFlags();
1595 &setupWarningFlags();
1596 &setupHeapStackSize();
1599 # These two variables need to be set after the
1600 # command-line has been processed and the build options
1601 # have be seen set up. This is because command-line options
1602 # can control whether to compile vias C or not.
1604 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1606 : ( ($HscOut eq '-C=') ? 1 : 0 );
1607 local($do_as) = $Do_as;
1608 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1609 local($hsc_out_c_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.c" : "";
1610 local($hsc_out_h_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.h" : "";
1612 if ($Only_preprocess_hc) { # stop after having run $Cc -E
1615 if ($Only_preprocess_C) { # stop after having run $hscpp
1616 $do_hsc=0; $do_cc = 0; $do_as=0;
1617 } elsif ($ifile =~ /.lhs$/ || $ifile =~ /.hs$/ ) {
1619 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
1620 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1622 $hsc_out_c_stub = '';
1623 $hsc_out_h_stub = '';
1624 } elsif ($ifile =~ /\.c$/) {
1625 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1626 $hsc_out = $ifile; $is_hc_file = 0;
1627 $hsc_out_c_stub = '';
1628 $hsc_out_h_stub = '';
1629 } elsif ($ifile =~ /\.[sS]$/) {
1630 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
1632 } else { # don't know what it is, but nothing to do herein...
1633 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
1636 # hack to avoid running hscpp
1637 $HsCpp = $Cat if ! $Cpp_flag_set;
1639 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) if $do_hscpp;
1643 We now think about whether to run hsc/cc or not (when hsc produces .s
1644 stuff, it effectively takes the place of both phases).
1645 To get the output file name right: for each phase that we are {\em
1646 not} going to run, set its input (i.e., the output of its preceding
1647 phase) to @"$ifile_root.<suffix>"@.
1650 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
1653 # Warning issued if -keep-hc-file-too is used without
1654 # -fvia-C (or the equivalent)
1656 if ( $HscOut ne '-C=' && $Keep_hc_file_too ) {
1657 print STDERR "$Pgm: warning: Native code generator to be used, -keep-hc-file-too will be ignored\n";
1660 if (! $do_cc && ! $do_as) { # stopping after hsc
1661 $hsc_out = ($Specific_output_file ne '')
1662 ? $Specific_output_file
1663 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
1665 $ofile_target = $hsc_out; # reset
1668 if (! $do_as) { # stopping after gcc (or hsc)
1669 $cc_as = ($Specific_output_file ne '')
1670 ? $Specific_output_file
1671 : &odir_ify($ifile_root, ( $Only_preprocess_hc ) ? 'i' : 's');
1673 $ofile_target = $cc_as; # reset
1679 Now the Haskell compiler, C compiler, and assembler
1683 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
1684 $ofile_target, $hifile_target,
1685 $going_interactive);
1688 if (-f $hsc_out_h_stub) {
1689 &run_something("cp $hsc_out_h_stub $ofile_h_stub_target", 'Copy foreign export header file');
1692 if (-f $hsc_out_c_stub) {
1693 &run_something("cp $hsc_out_c_stub $ofile_c_stub_target", 'Copy foreign export C stubs');
1694 local ($hsc_out_s_stub);
1695 local ($hsc_out_o_stub);
1696 ($ofile_s_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$/\.s/;
1697 ($ofile_o_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$/\.o/;
1698 &runGcc (0, $ofile_c_stub_target, $ofile_s_stub_target);
1699 &runAs ($ofile_o_stub_target, $ofile_s_stub_target);
1701 # Bring the C stub protos into scope when compiling the .hc file.
1703 push (@CcInjects, "#include \"${hsc_out_h_stub}\"\n");
1704 # Hack - ensure that the stub .h file is included in the OPTIONS section
1705 # if the .hc file is saved.
1706 push (@File_options, "-#include \"${ofile_h_stub_target}\"\n");
1711 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
1712 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root) if ! $Only_preprocess_hc;
1715 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
1717 # save a copy of the .s file..
1718 &saveIntermediate($ifile_root , "s" , $cc_as) if ($do_as && $Keep_s_file_too);
1719 &runAs($as_out, $ifile_root) if $do_as;
1722 Finally, decide what to queue up for linker input.
1724 # tentatively assume we will eventually produce linker input:
1725 push(@Link_file, &odir_ify($ifile_root, 'o'));
1727 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
1729 if ( $ifile !~ /\.(lhs|hs|hc|c|s|a|S)$/ && $ifile !~ /_hc$/ ) {
1730 # There's sometimes confusion regarding .hi files; users
1731 # supplying them on the command line.
1732 if ( $ifile =~ /\.hi$/ ) {
1733 print STDERR "$Pgm: warning: found `$ifile' on command line; interface files should not be supplied here - ignoring it.\n";
1735 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n";
1737 # oops; we tentatively pushed the wrong thing; fix & do the right thing
1738 pop(@Link_file); push(@Link_file, $ifile);
1742 } # end of ProcessInputFile
1745 %************************************************************************
1747 \section[Driver-run-phases]{Routines to run the various phases}
1749 %************************************************************************
1753 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
1757 # Only add #line pragma if we're going to need it.
1758 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && " if ($Cpp_flag_set);
1759 $to_do .= "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
1761 push(@Files_to_tidy, $lit2pgm_hscpp );
1763 &run_something($to_do, 'literate pre-processor');
1769 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
1773 # Strictly speaking, echoing of the following line pragma is only required
1774 # on non-delit'ed input, as we've already added it during de-lit. However,
1775 # hscpp will then add a {-# LINE 1 "$lit2pgm_hsc" -} to the top of the file,
1776 # which is not very informative (but harmless). Hence, we uniformly have
1777 # {-# LINE 1 "$in_lit2pgm" #-} as the first line to all cpp'ed hsc input.
1779 $to_do = "echo '{-# LINE 1 \"$in_lit2pgm\" -}' > $hscpp_hsc && ";
1781 if ($HsCpp eq $Cat) {
1782 $to_do .= "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
1783 push(@Files_to_tidy, $hscpp_hsc );
1784 &run_something($to_do, 'Ineffective C pre-processor');
1786 local($includes) = '-I' . join(' -I',@Include_dir);
1787 $to_do .= "$HsCpp $Verbose @HsCpp_flags @HsSourceCppOpts $includes $lit2pgm_hscpp >> $hscpp_hsc";
1788 push(@Files_to_tidy, $hscpp_hsc );
1789 &run_something($to_do, 'Haskellised C pre-processor');
1792 if ( $Only_preprocess_C ) {
1793 $to_do = "$Cat $hscpp_hsc";
1794 &run_something($to_do, '');
1802 sub runHscAndProcessInterfaces {
1803 local($ifile, $hscpp_hsc, $ifile_root,
1804 $ofile_target, $hifile_target,
1805 $going_interactive) = @_;
1807 # $ifile is the original input file
1808 # $hscpp_hsc post-unlit, post-cpp, etc., input file
1809 # $ifile_root input filename minus suffix
1810 # $ofile_target the output file that we ultimately hope to produce
1811 # $hifile_target the .hi file ... (ditto)
1813 local($source_unchanged) = 1;
1815 # Check if the source file is up to date relative to the target; in
1816 # that case we say "source is unchanged" and let the compiler bail out
1817 # early if the import usage information allows it.
1819 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
1820 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
1822 # The informational messages below are now conditional on -v being set -- SOF
1823 if ( $ofile_target ne "_stdin.s" && ! -f $ofile_target ) {
1824 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n" if $Verbose;
1825 $source_unchanged = 0;
1828 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
1829 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
1831 if ( $hifile_target ne "_stdout" && ! -f $hifile_target ) {
1832 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n" if $Verbose;
1833 $source_unchanged = 0;
1836 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
1837 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
1839 if ( $ofile_target ne "_stdin.s" && $i_mtime > $o_mtime) {
1840 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n" if $Verbose;
1841 $source_unchanged = 0;
1844 # Tell the compiler which version we're using
1845 push(@HsC_flags, "-fhi-version=${ProjectVersionInt}");
1847 # So if source_unchanged is still "1", we pass on the good news to the compiler
1848 # The -recomp flag can disable this, forcing recompilation
1849 if ($Do_recomp_chkr && $source_unchanged) {
1850 push(@HsC_flags, '-fsource-unchanged');
1855 &runHsc($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive);
1857 # See if it bailed out early, saying nothing needed doing.
1858 # We work this out by seeing if it created an output .hi file
1860 if ( ! -f $hsc_hi && $ProduceHi !~ /-nohifile=/ ) {
1861 # Doesn't exist, so we bailed out early.
1862 # Tell the C compiler and assembler not to run
1863 $do_cc = 0; $do_as = 0;
1865 # Update dependency info, touch both object file and
1866 # interface file, so that the following invariant is
1869 # a dependent module's interface file should after recompilation
1870 # checking be newer than the interface files of its imports.
1872 # That is, if module A's interface file changes, then module B
1873 # (which import from A) needs to be checked.
1874 # If A's change does not affect B, which causes the compiler to bail
1875 # out early, we still need to touch the interface file of B. The reason
1876 # for this is that B may export A's interface.
1878 &run_something("touch $ofile_target",
1879 "Touch $ofile_target, to propagate dependencies") if $HscOut ne '-N=';
1880 &run_something("touch $hifile_target",
1881 "Touch $hifile_target, to propagate dependencies") if $ProduceHi =~ /-nohifile=/ ;
1885 # Didn't bail out early (new .hi file) so we thunder on
1887 # If non-interactive, heave in the consistency info at the end
1888 # NB: pretty hackish (depends on how $output is set)
1889 if ( ! $going_interactive ) {
1890 if ( $HscOut eq '-C=' ) {
1891 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
1893 } elsif ( $HscOut eq '-S=' ) {
1894 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
1895 $consist =~ s/,/./g;
1896 $consist =~ s/\//./g;
1897 $consist =~ s/-/_/g;
1898 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
1899 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
1901 &run_something($to_do, 'Pin on Haskell consistency info');
1905 # Interface-handling is important enough to live off by itself
1906 if ( $ProduceHi !~ /-nohifile=/ ) { # If we've produced one, process it.
1907 require('ghc-iface.prl') || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
1908 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
1910 # if we're going to split up object files,
1911 # we inject split markers into the .hc file now
1912 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
1913 &inject_split_markers ( $hsc_out );
1916 # save a copy of the .hc file, even if we are carrying on...
1917 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
1918 &saveIntermediate($ifile_root , "hc" , $hsc_out);
1928 local($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive) = @_;
1930 # prepend comma to HsP flags (so hsc can tell them apart...)
1931 foreach $a ( @HsP_flags ) { $a = ",$a" unless $a =~ /^,/; }
1933 &makeHiMap() unless $HiMapDone;
1934 push(@HsC_flags, "-himap=$HiIncludeString");
1936 # here, we may produce .hc/.s and/or .hi files
1937 local($output) = '';
1938 #@Files_to_tidy = ();
1940 if ( $going_interactive ) {
1941 # don't need .hi unless we're going to show it on stdout:
1942 $ProduceHi = '-nohifile=' if ! $HiOnStdout;
1943 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
1946 # set up for producing output/.hi; note that flag twiddling
1947 # may mean that nothing will actually be produced:
1948 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out -F=$hsc_out_c_stub -FH=$hsc_out_h_stub";
1949 push(@Files_to_tidy, $hsc_hi, $hsc_out, $hsc_out_c_stub, $hsc_out_h_stub );
1951 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
1952 if ( $CollectingGCstats ) {
1953 push(@HsC_rts_flags, "-S$ifile_root.stat");
1954 push(@Files_to_tidy, "$ifile_root.stat");
1957 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
1958 # emit nofibbish time/bytes-alloc stats to stderr;
1959 # see later .stat file post-processing
1960 print STDERR "warning: both -Rgc-stats and -Rghc-timing used, -Rghc-timing wins." if $CollectingGCstats;
1961 push(@HsC_rts_flags, "-s$Tmp_prefix.stat");
1962 push(@Files_to_tidy, "$Tmp_prefix.stat");
1966 if ($Specific_dump_file ne '') {
1967 $dump = "2>> $Specific_dump_file";
1968 $Using_dump_file = 1;
1972 # Win32 only: If the command processor used by system()
1973 # exec()s the application as an ordinary Win32 executable,
1974 # we're in trouble here, since the command line is likely
1975 # to be > 255 chars long. To work around this situation,
1976 # $HsC also understands `at-files', i.e., `@file' on the
1977 # command line will cause $HsC to add the contents of `file'
1978 # to the command line.
1980 # [ Note: support for `at-files' is not compiled in by default ]
1981 $cmd_line_opts_via_at_file=0;
1982 if ($cmd_line_opts_via_at_file) {
1984 local($to_do_opts) = "$Tmp_prefix.opts";
1985 open(OPTS, "> $Tmp_prefix.opts") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.opts\n");
1986 print OPTS "$dump @HsC_flags $CoreLint $StgLint $Verbose";
1988 $to_do = "$HsC @HsP_flags ,$hscpp_hsc \@$Tmp_prefix.opts $output +RTS @HsC_rts_flags";
1992 $to_do = "$HsC @HsP_flags ,$hscpp_hsc $dump @HsC_flags $CoreLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
1994 &run_something($to_do, 'Haskell compiler');
1996 # finish business w/ nofibbish time/bytes-alloc stats
1997 &process_ghc_timings() if $CollectGhcTimings;
2001 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
2002 of (module-name, pathname) pairs, one per line, separated by a space.
2005 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
2009 # collect in %HiMap; write later; also used elsewhere in driver
2011 local($mod, $path, $d, $e);
2013 # reset the global variables:
2015 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
2017 foreach $d ( @Import_dir ) {
2018 if ($HiIncludeString) {
2019 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix}";
2021 $HiIncludeString = "$d%.${HiSuffix}";
2026 foreach $d ( @SysImport_dir ) {
2027 if ($HiIncludeString) {
2028 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix_prelude}";
2030 $HiIncludeString = "${d}%.${HiSuffix_prelude}";
2039 %************************************************************************
2041 \section[Driver-misc-utils]{Miscellaneous utilities}
2043 %************************************************************************
2045 %************************************************************************
2047 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
2049 %************************************************************************
2053 local($ofile,$def_suffix) = @_;
2055 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
2059 local($orig_file, $def_suffix) = @_;
2060 if ($Specific_output_dir eq '') { # do nothing
2061 &osuf_ify($orig_file, $def_suffix);
2063 local ($orig_file_only);
2064 ($orig_file_only = $orig_file) =~ s|.*/||;
2065 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
2072 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
2074 local($includes) = '-I' . join(' -I', @Include_dir);
2077 local($c_flags) = "@CcBoth_flags";
2078 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2080 # "input" files to use that are not in some weird directory;
2081 # to help C compilers grok .hc files [ToDo: de-hackify]
2082 local($cc_help) = "ghc$$.c";
2083 local($cc_help_s) = "ghc$$.s";
2086 $s_output = (($is_hc_file && $DoAsmMangling) || $TargetPlatform =~ /^(powerpc|rs6000|hppa)/) ? $cc_as_o : $cc_as;
2087 $c_flags .= " @CcRegd_flags";
2088 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2090 # C compiler won't like the .hc extension. So we create
2091 # a tmp .c file which #include's the needful.
2092 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2093 if ( $is_hc_file ) {
2097 # user may have asked for #includes to be injected...
2098 print TMP @CcInjects if $#CcInjects >= 0;
2100 # Straight .c files may want to know that they're being used
2101 # with a particular version of GHC, so we define __GLASGOW_HASKELL__ for their benefit.
2102 print TMP "#define __GLASGOW_HASKELL__ ${ProjectVersionInt}\n";
2104 # heave in the consistency info
2105 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2107 print TMP "#include \"$hsc_out\"\n";
2108 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2110 # Don't redirect stderr into intermediate file if slamming output onto stdout (e.g., with -E)
2111 local($fuse_stderr) = "2>&1" if ! $Only_preprocess_hc;
2112 local($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 )";
2114 if ( $Only_preprocess_hc ) { # HACK ALERT!
2115 $to_do =~ s/ -S\b//g;
2117 push(@Files_to_tidy, $cc_help, $cc_help_s, $s_output );
2118 $PostprocessCcOutput = 1 if ! $Only_preprocess_hc; # hack, dear hack...
2119 &run_something($to_do, 'C compiler');
2120 $PostprocessCcOutput = 0;
2121 if ( $Only_preprocess_hc ) {
2122 system("$Cat $Tmp_prefix.ccout");
2124 unlink($cc_help, $cc_help_s);
2130 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2132 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2134 if ($is_hc_file && $DoAsmMangling) {
2135 # dynamically load assembler-fiddling code, which we are about to use:
2136 require('ghc-asm.prl')
2137 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2138 # post-process the assembler [.hc files only]
2139 &mangle_asm($cc_as_o, $cc_as);
2141 } elsif ($TargetPlatform =~ /^hppa/) {
2142 # minor mangling of non-threaded files for hp-pa only
2143 require('ghc-asm.prl')
2144 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2145 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2147 } elsif ($TargetPlatform =~ /^powerpc|^rs6000/) {
2148 # minor mangling of non-threaded files for powerpcs and rs6000s
2149 require('ghc-asm.prl')
2150 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-powerpc.prl!\n");
2151 &mini_mangle_asm_powerpc($cc_as_o, $cc_as);
2154 # save a copy of the .s file, even if we are carrying on...
2155 #if ($do_as && $Keep_s_file_too) {
2156 # &saveIntermediate($ifile_root , "s" , $cc_as);
2163 local($as_out, $ifile_root) = @_;
2165 local($asmblr) = ( $As ) ? $As : $CcRegd;
2167 # need to add the -I flags in case the file is going through cpp (.S files)
2168 local($includes) = '-I' . join(' -I', @Include_dir);
2170 if ( ! $SplitObjFiles ) {
2171 local($to_do) = "$asmblr -o $as_out -c @As_flags $includes $cc_as";
2172 push(@Files_to_tidy, $as_out );
2173 &run_something($to_do, 'Unix assembler');
2175 } else { # more complicated split-ification...
2177 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2179 # If -odir is used, great, just pin it in front of the
2180 # generated split file names. If it hasn't been set, we
2181 # snatch it from the ifile_root.
2185 if ( $Specific_output_dir eq '' ) {
2186 $Specific_output_dir = ${ifile_root};
2189 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2190 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2191 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2192 push(@Files_to_tidy, $split_out );
2194 &run_something($to_do, 'Unix assembler');
2200 %************************************************************************
2202 \subsection[Driver-run-something]{@run_something@: Run a phase}
2204 %************************************************************************
2208 local($str_to_do, $tidy_name) = @_;
2210 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2211 print STDERR "$str_to_do\n" if $Verbose;
2213 if ($Using_dump_file) {
2214 open(DUMP, ">> $Specific_dump_file")
2215 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2216 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2218 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2221 local($return_val) = 0;
2223 if ( length($str_to_do) > 4000) {
2224 # 4000 - on the random side, just like the *real* ARG_MAX
2227 # With some shells, command lines of this length may
2228 # very well cause trouble. To safeguard against this, we squirrel the
2229 # command into a file and exec that.
2230 local ($sh) = $ENV{'REAL_SHELL'};
2231 print STDERR "Backup plan A: saving cmd line in ${Tmp_prefix}.sh and executing that with $sh\n" if $Verbose;
2232 open (TEMP, "> ${Tmp_prefix}.sh") ||
2233 &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.sh'\n");
2234 print TEMP "$Time $str_to_do\n";
2236 &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.sh'\n");
2237 system("$sh $Tmp_prefix.sh");
2240 unlink "${Tmp_prefix}.sh";
2242 system("$Time $str_to_do");
2246 if ( $PostprocessCcOutput ) { # hack, continued
2247 open(CCOUT, "< $Tmp_prefix.ccout")
2248 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2250 next if /call-clobbered/;
2251 next if /control reaches end/;
2252 next if /from .*Stg\.h:/;
2253 next if /from ghc\d+.c:\d+:/;
2254 next if /: At top level:$/;
2255 next if /: In function \`.*\':$/;
2256 next if /\`ghc_cc_ID\' defined but not used/;
2259 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2262 if ($return_val != 0) {
2263 if ($Using_dump_file) {
2264 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2266 &tidy_up_and_die($return_val, '');
2268 $Using_dump_file = 0;
2272 %************************************************************************
2274 \subsection[Driver-ghc-timing]{Emit nofibbish GHC timings}
2276 %************************************************************************
2278 NB: nearly the same as in @runstdtest@ script.
2281 sub process_ghc_timings {
2282 local($StatsFile) = "$Tmp_prefix.stat";
2283 local($SysSpecificTiming) = 'ghc';
2285 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2286 local($max_live) = 0;
2287 local($tot_live) = 0; # for calculating residency stuff
2288 local($tot_samples) = 0;
2291 if (! /Gen:\s+0/ && ! /Minor/ && /^\s*\d+\s+\d+\s+(\d+)\s+\d+\.\d+/ ) {
2292 $max_live = $1 if $max_live < $1;
2296 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2298 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2299 $MaxResidency = $1; $ResidencySamples = $2;
2302 $GCs = $1 if /^\s*([0-9,]+) (collections? in generation 0|garbage collections? performed)/;
2304 # The presence of -? in the following pattern is only there to
2305 # accommodate 0.29 && <= 2.05 RTS'
2306 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*-?(\d+\.\d\d)s elapsed\)/ ) {
2307 $InitTime = $1; $InitElapsed = $2;
2308 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2309 $MutTime = $1; $MutElapsed = $2;
2310 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2311 $GcTime = $1; $GcElapsed = $2;
2314 close(STATS) || die "Failed when closing $StatsFile\n";
2315 if ( $tot_samples > 0 ) {
2316 $ResidencySamples = $tot_samples;
2317 $MaxResidency = $max_live;
2318 $AvgResidency = int ($tot_live / $tot_samples) ;
2321 # warn about what we didn't find
2322 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2323 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2324 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2325 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2326 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2327 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2328 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2329 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2331 # things we didn't necessarily expect to find
2332 $MaxResidency = 0 unless defined($MaxResidency);
2333 $AvgResidency = 0 unless defined($AvgResidency);
2334 $ResidencySamples = 0 unless defined($ResidencySamples);
2337 $BytesAlloc =~ s/,//g;
2338 $MaxResidency =~ s/,//g;
2340 $InitTime =~ s/,//g;
2341 $InitElapsed =~ s/,//g;
2343 $MutElapsed =~ s/,//g;
2345 $GcElapsed =~ s/,//g;
2347 # print out what we found
2348 print STDERR "<<$SysSpecificTiming: ",
2349 "$BytesAlloc bytes, $GCs GCs, $AvgResidency/$MaxResidency avg/max bytes residency ($ResidencySamples samples), $InitTime INIT ($InitElapsed elapsed), $MutTime MUT ($MutElapsed elapsed), $GcTime GC ($GcElapsed elapsed)",
2350 " :$SysSpecificTiming>>\n";
2357 %************************************************************************
2359 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2361 %************************************************************************
2365 local($to_do) = "\n$Rm $Tmp_prefix*";
2366 if ( $Tmp_prefix !~ /^\s*$/ ) {
2367 print STDERR "$to_do\n" if $Verbose;
2372 sub tidy_up_and_die {
2373 local($return_val, $msg) = @_;
2375 # delete any files to tidy
2376 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2377 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2381 exit (($return_val == 0) ? 0 : 1);
2385 %************************************************************************
2387 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2389 %************************************************************************
2391 Some command-line arguments take an argument, e.g.,
2392 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2393 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2394 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2396 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2397 gobble the second argument (and probably set the heapsize to something
2401 local(*Args, $option, $rest_of_arg) = @_;
2403 if ($rest_of_arg ne '') {
2404 return($rest_of_arg);
2405 } elsif ($#Args >= 0) {
2406 local($temp) = $Args[0]; shift(@Args);
2409 print STDERR "$Pgm: no argument following $option option\n";
2420 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2422 foreach $f ( @HsC_antiflags ) {
2423 return(0) if $flag eq $f;
2425 # foreach $f ( @HsC_flags ) {
2426 # return(0) if $flag eq $f;
2431 sub squashHscFlag { # pretty terrible
2435 foreach $f ( @HsC_flags ) {
2436 if ($flag eq $f) { $f = ''; }
2444 foreach $f ( @flags ) {
2445 push( @HsC_flags, $f ) if &isntAntiFlag($f);
2450 To add another system library, you'll need to augment the
2451 Supported_syslibs variable with name and info on your addition
2452 to the syslib family. The info bit consist of the following:
2454 - interface file directory
2455 see the misc or posix entry for how to distinguish
2456 between using installed and build tree directories.
2458 - directory location of archives
2460 - location of (way-independent) C support libs.
2461 not all libraries need this - if you don't, just
2462 give the empty string.
2463 - list of syslibs you depend on.
2465 - additional ghc command line flags that should be used.
2466 - additional C compiler command line flags that should be used.
2472 # Hash to keep track of
2473 %Syslibs_added = ();
2476 local($syslib) = @_;
2478 # Lifting this out of this sub brings it out of scope - why??
2479 %Supported_syslibs =
2481 [ # where to slurp interface files from
2483 ? "$InstLibDirGhc/imports/exts"
2484 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/exts"
2486 , # where to find the archive to use when linking
2489 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/exts"
2492 , '' # Syslib dependencies
2493 , '' # extra ghc opts
2494 , '' # extra cc opts
2495 , '' # extra ld opts
2499 [ # where to slurp interface files from
2501 ? "$InstLibDirGhc/imports/misc"
2502 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc"
2504 , # where to find the archive to use when linking
2507 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc"
2509 , # where to find the cbits archive to use when linking
2512 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc/cbits"
2514 , 'exts' # Syslib dependencies
2515 , '' # extra ghc opts
2516 , '' # extra cc opts
2517 , ( $TargetPlatform =~ /-solaris2$/ ? '-lnsl -lsocket' : '')
2520 [ # where to slurp interface files from
2522 ? "$InstLibDirGhc/imports/hbc"
2523 : "$TopPwd/CONTRIB/libraries/hbc/src"
2525 , # where to find the archive to use when linking
2528 : "$TopPwd/CONTRIB/libraries/src/hbc"
2530 , # where to find the cbits archive to use when linking
2533 : "$TopPwd/CONTRIB/libraries/hbc/cbits"
2535 , 'exts' # Syslib dependencies
2536 , '' # extra ghc opts
2537 , '' # extra cc opts
2541 [ # where to slurp interface files from
2543 ? "$InstLibDirGhc/imports/posix"
2544 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix"
2546 , # where to find the archive to use when linking
2549 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix"
2551 , # where to find the cbits archive to use when linking
2554 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix/cbits"
2556 , 'misc' # Syslib dependencies
2557 , '' # extra ghc opts
2558 , '' # extra cc opts
2559 , '' # extra ld opts
2562 [ # where to slurp interface files from
2564 ? "$InstLibDirGhc/imports/concurrent"
2565 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent"
2567 , # where to find the archive to use when linking
2570 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent"
2572 , '' # where to find the cbits archive to use when linking
2573 , '' # Syslib dependencies
2574 , '' # extra ghc opts
2575 , '' # extra cc opts
2576 , '' # extra ld opts
2579 [ # where to slurp interface files from
2581 ? "$InstLibDirGhc/imports/win32"
2582 : "$TopPwd/hslibs/win32/src"
2584 , # where to find the archive to use when linking
2587 : "$TopPwd/hslibs/win32/src"
2590 , 'exts' # Syslib dependencies
2591 , '' # extra ghc opts
2592 , '' # extra cc opts
2593 , '-luser32 -lgdi32' # extra ld opts
2597 # check if it's supported..
2599 if ( !exists $Supported_syslibs{$syslib} ) {
2600 print STDERR "$Pgm: no such system library (-syslib): $syslib\n";
2605 # This check is here to avoid syslib loops from
2606 # spoiling the party. A side-effect of it is that
2607 # it disallows multiple mentions of a syslib on a command-line,
2608 # explicit *and* implicit ones (i.e., "-syslib exts -syslib misc"
2609 # is not equal to "-syslib exts -syslib misc -syslib exts",
2610 # which it needs to be)
2612 # Since our current collection of syslibs don't have any
2613 # loops, this test is disabled.
2615 # ToDo: loop avoidance scheme when the need arises
2617 #return if ( exists $Syslibs_added{$syslib} );
2619 $Syslibs_added{$syslib} = 1;
2621 local ($hi_dir, $lib_dir, $lib_cbits_dir,
2622 $syslib_deps, $syslib_ghc_opts,
2623 $syslib_cc_opts, $syslib_ld_opts) = @{ $Supported_syslibs{$syslib} };
2626 unshift(@SysImport_dir, $hi_dir);
2627 push(@SysLibrary_dir, $lib_dir);
2628 push(@SysLibrary_dir, $lib_cbits_dir) if ( $lib_cbits_dir ne '');
2630 push(@SysLibrary, "-lHS$syslib");
2631 push(@SysLibrary, "-lHS${syslib}_cbits") if ( $lib_cbits_dir ne '');
2632 push(@SysLibrary, $syslib_ld_opts) if ($syslib_ld_opts ne '');
2634 # Add on any extra dependencies.
2635 foreach $lib (split(' ',$syslib_deps)) {
2641 Source files may have {-# OPTIONS ... #-} pragmas at the top, containing
2642 command line options we want to append to collection of commands specified
2643 directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell
2644 file for any such pragmas:
2647 sub check_for_source_options {
2648 local($file,$ifile) = @_;
2649 local($comment_start,$comment_end);
2651 if ($ifile =~ /\.hc$/ ||
2654 $ifile =~ /_s$/ ) { # `Real' C intermediate
2655 $comment_start = "/\\*";
2656 $comment_end = "\\*/";
2657 } else { # Assume it is a file containing Haskell source
2658 $comment_start = "{-#";
2659 $comment_end = "#-}";
2662 open(FILE,$file) || return(1); # No big loss
2665 if ( /^${comment_start} OPTIONS (.*)${comment_end}$/ ) {
2666 # add the options found at the back of the command line.
2667 local(@entries) = split(/\s+/,$1);
2668 print STDERR "Found OPTIONS " . join(' ',@entries) . " in $file\n" if $Verbose;
2669 push(@File_options, @entries);
2671 elsif ( /^$/ ) { # ignore empty lines
2674 elsif ( /^#line.+$/ ) { # ignore comment lines (unused..ToDo: rm )
2677 elsif ( /^{-# LINE.+$/ ) { # ignore line pragmas
2680 else { # stop looking, something non-empty / not
2681 # ${comment_start} OPTIONS .. ${comment_end} encountered.
2682 close(FILE);return(0);
2691 We split the initial argv up into three arrays:
2697 the reason for doing so is to be able to deal
2698 with {-# OPTIONS #-} pragma in source files properly.
2704 arg: while($_ = $args[0]) {
2706 # sigh, we have to deal with these -option arg specially here.
2707 /^-(tmpdir|odir|ohi|o|isuf|osuf|hisuf|odump|syslib)$/ &&
2708 do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; };
2709 /^--?./ && do { push(@Cmd_opts, $_); next arg; };
2711 if (/\.([^_]+_)?[oa]$/) {
2712 push(@Link_file, $_);
2714 push(@Input_file, $_);
2717 # input files must exist:
2719 print STDERR "$Pgm: input file doesn't exist: $_\n";
2727 When saving an intermediate file (.hc or .s) away, we
2728 have to prefix any OPTIONS found in the original source file.
2731 sub saveIntermediate {
2732 local ($final,$suffix,$tmp)= @_ ;
2735 # $final -- root of where to park ${final}.${suffix}
2736 # $tmp -- temporary file where hsc put the intermediate file.
2738 # Delete the old file
2739 $to_do = "$Rm ${final}.${suffix}"; &run_something($to_do, "Removing old .${suffix} file");
2741 if ( $#File_options >= 0 ) { # OPTIONS found in Haskell source unit
2742 # Add OPTION comment to the top of the generated .${suffix} file
2743 open(TEMP, "> ${final}.${suffix}") || &tidy_up_and_die(1,"Can't open ${final}.${suffix}\n");
2744 print TEMP "/* OPTIONS " . join(' ',@File_options) . " */\n";
2746 print STDERR "Prepending OPTIONS: " . join(' ',@File_options) . " to ${final}.${suffix}\n" if $Verbose;
2748 $to_do = "$Cat $tmp >> ${final}.${suffix}";
2749 &run_something($to_do, "Saving copy of .${suffix} file");
2756 Command-line processor
2762 # can't use getopt(s); what we want is too complicated
2764 arg: while($_ = $Args[0]) {
2767 #---------- help -------------------------------------------------------
2768 if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; }
2770 #-----------version ----------------------------------------------------
2771 /^--version$/ && do { print STDERR "${ProjectName}, version ${ProjectVersion}, patchlevel ${ProjectPatchLevel}\n"; exit $Status; };
2773 #---------- verbosity and such -----------------------------------------
2774 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
2776 #---------- what phases are to be run ----------------------------------
2777 /^-(no-)?recomp/ && do { $Do_recomp_chkr = ($1 eq '') ? 1 : 0; next arg; };
2779 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
2780 # change the global default:
2781 # we won't run cat; we'll run the real thing
2783 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
2785 # stop after generating C
2787 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
2788 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
2790 # leave out actual C generation (debugging) [also turns off interface gen]
2793 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
2794 # _do_ generate an interface; usually used as: -noC -hi
2796 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
2797 # don't generate an interface (even if generating C)
2799 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
2800 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
2801 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
2802 /^-keep-hi-diffs$/ && do { $Keep_HiDiffs = 1; next arg; };
2804 # show/disable diffs if the interface file changes
2806 /^-E$/ && do { push(@CcBoth_flags, '-E');
2807 $Only_preprocess_C = 1;
2808 $Do_as = 0; $Do_lnkr = 0; next arg; };
2809 # stop after preprocessing C
2810 /^-M$/ && do { $Only_generate_deps = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2811 # only generate dependency information.
2812 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
2813 # stop after generating assembler
2815 /^-c$/ && do { $Do_lnkr = 0; next arg; };
2816 # stop after generating .o files
2818 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
2819 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
2820 # don't do consistency-checking after a link
2822 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', '');
2823 $Tmp_prefix = "$Tmp_prefix/ghc$$";
2824 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
2826 # use an alternate directory for temp files
2828 #---------- redirect output --------------------------------------------
2830 # -o <file>; applies to the last phase, whatever it is
2831 # "-o -" sends it to stdout
2832 # if <file> has a directory component, that dir must already exist
2834 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', '');
2836 # Hack, of the worst sort: don't do validation of
2837 # odir argument if you're using -M (dependency generation).
2839 if ( ! $Only_generate_deps && ! -d $Specific_output_dir) {
2840 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
2845 /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', '');
2846 if ($Specific_output_file ne '-'
2847 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
2848 local($dir_part) = $1;
2849 if (! -d $dir_part) {
2850 print STDERR "$Pgm: no such directory: $dir_part\n";
2856 # NB: -isuf not documented yet (because it doesn't work yet)
2857 /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', '');
2858 if ($Isuffix =~ /\./ ) {
2859 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
2864 /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', '');
2865 if ($Osuffix =~ /\./ ) {
2866 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
2871 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
2872 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', '');
2873 if ($Specific_hi_file ne '-'
2874 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
2875 local($dir_part) = $1;
2876 if (! -d $dir_part) {
2877 print STDERR "$Pgm: no such directory: $dir_part\n";
2883 # The suffix to use when looking for interface files
2884 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', '');
2885 if ($HiSuffix =~ /\./ ) {
2886 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
2890 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', '');
2891 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
2892 local($dir_part) = $1;
2893 if (! -d $dir_part) {
2894 print STDERR "$Pgm: no such directory: $dir_part\n";
2900 #-------------- scc & Profiling Stuff ----------------------------------
2902 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
2905 # generate auto SCCs on top level bindings
2906 # -auto-all = all top level bindings
2907 # -auto = only top level exported bindings
2908 $PROFauto = ( /-all/ )
2909 ? '-fauto-sccs-on-all-toplevs'
2910 : '-fauto-sccs-on-exported-toplevs';
2913 /^-caf-all/ && do { # generate individual CAF SCC annotations
2914 $PROFcaf = '-fauto-sccs-on-individual-cafs';
2917 /^-ignore-scc$/ && do {
2918 # forces ignore of scc annotations even if profiling
2919 $PROFignore_scc = '-W';
2922 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
2925 /^-unprof-scc-auto/ && do {
2926 # generate auto SCCs on top level bindings when not profiling.
2927 # Used to measure optimisation effects of presence of sccs.
2928 $UNPROFscc_auto = ( /-all/ )
2929 ? '-fauto-sccs-on-all-toplevs'
2930 : '-fauto-sccs-on-exported-toplevs';
2933 #--------- ticky/parallel ----------------------------------------------
2934 # we sort out the details a bit later on
2936 /^-gransim$/ && do { $GRANing = 'g'; &add_syslib('concurrent'); next arg; }; # GranSim
2937 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
2938 /^-parallel$/ && do { $PARing = 'p'; &add_syslib('concurrent'); next arg; }; # parallel Haskell
2940 #-------------- "user ways" --------------------------------------------
2942 (/^-user-setup-([a-oA-Z])$/ ) &&
2944 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
2946 local($stuff) = $UserSetupOpts{$BuildTag};
2947 local(@opts) = split(/\s+/, $stuff);
2949 # feed relevant ops into the arg-processing loop (if any)
2950 unshift(@Args, @opts) if $#opts >= 0;
2954 #---------- set search paths for libraries and things ------------------
2956 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
2957 # prepends the items to the list); -I is for including C .h files.
2959 /^-i$/ && do { @Import_dir = (); # import path cleared!
2960 @SysImport_dir = ();
2961 print STDERR "WARNING: import paths cleared by `-i'\n";
2964 /^-i(.*)/ && do { local(@new_items)
2965 = split( /:/, &grab_arg_arg(*Args,'-i', $1));
2966 unshift(@Import_dir, @new_items);
2969 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; };
2970 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; };
2971 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; };
2973 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1);
2974 &add_syslib($syslib);
2977 #=======================================================================
2978 # various flags that we can harmlessly send to one program or another
2979 # (we will later "reclaim" some of the compiler ones now sent to gcc)
2980 #=======================================================================
2982 #---------- this driver itself (ghc) -----------------------------------
2983 # these change what executable is run for each phase:
2984 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
2985 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
2986 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
2987 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
2988 /^-pgma(.*)$/ && do { $As = $1; next arg; };
2989 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
2990 /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; };
2992 #---------- the get-anything-through opts (all pgms) -------------------
2993 # these allow arbitrary option-strings to go to any phase:
2994 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
2995 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
2996 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
2997 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
2998 /^-optp(.*)$/ && do { push(@HsP_flags, $1); next arg; };
2999 /^-optcpp(.*)$/ && do { push(@Cpp_define, $1); $Only_preprocess_hc = ($1 eq "-E"); next arg; };
3000 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
3001 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
3002 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
3003 /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; };
3005 #---------- Haskell C pre-processor (hscpp) ----------------------------
3006 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; };
3007 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; };
3009 #---------- post-Haskell "assembler"------------------------------------
3010 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
3011 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
3013 #---------- Haskell compiler (hsc) -------------------------------------
3015 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
3016 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
3018 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
3020 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
3023 # have the compiler proper generate concurrent code,
3024 # really only used when you want to configure your own
3025 # special user compilation way.
3027 # (ditto for -fgransim, fscc-profiling, -fparallel and -fticky-ticky)
3029 /^-fscc-profiling$/ && do { push(@HsC_flags,$_); next arg; };
3030 /^-fticky-ticky$/ && do { push(@HsC_flags,$_); next arg; };
3031 /^-fgransim$/ && do { push(@HsC_flags,$_); next arg; };
3032 /^-fparallel$/ && do { push(@HsC_flags,$_); next arg; };
3034 /^-split-objs$/ && do {
3035 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|rs6000|sparc)-/ ) {
3037 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
3042 push(@HsC_flags, "-fglobalise-toplev-names");
3043 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
3045 require('ghc-split.prl')
3046 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
3050 /^-fno-asm-mangling$/ && do { $DoAsmMangling = 0; next arg; };
3052 /^-fallow-overlapping-instances$/ && do { push(@HsC_flags, $_); next arg; };
3053 /^-fallow-undecidable-instances$/ && do { push(@HsC_flags, $_); next arg; };
3055 && do { push(@HsC_flags, $_);
3056 push(@HsP_flags, '-N');
3058 # -fglasgow-exts implies -syslib exts
3059 &add_syslib('exts');
3064 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
3065 /^-fno-speciali[sz]e$/
3066 && do { $Oopt_DoSpecialise = ''; next arg; };
3069 # Now the foldr/build options, which are *on* by default (for -O).
3072 && do { $Oopt_FoldrBuild = 1;
3073 $Oopt_FB_Support = '-fdo-arity-expand';
3077 /^-fno-foldr-build$/
3078 && do { $Oopt_FoldrBuild = 0;
3079 $Oopt_FB_Support = '';
3082 /^-fno-foldr-build-rule$/
3083 && do { $Oopt_FoldrBuild = 0;
3086 /^-fno-enable-tech$/
3087 && do { $Oopt_FB_Support = '';
3090 /^-fno-snapback-to-append$/
3091 && do { $Oopt_FoldrBuildInline .= ' -fdo-not-fold-back-append ';
3094 # --------------- Renamer -------------
3097 /^-fno-prune-tydecls$/ && do { push(@HsC_flags, $_); next arg; };
3098 /^-fno-prune-instdecls$/ && do { push(@HsC_flags, $_); next arg; };
3102 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
3103 /^-fvia-[cC]$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
3108 && do { push(@HsC_flags, $_); next arg };
3110 /^-funfold-casms-in-hi-file$/
3111 && do { push(@HsC_flags, $_); next arg };
3113 /^(-fmax-simplifier-iterations)(.*)$/
3114 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2);
3117 /^-fno-pedantic-bottoms$/
3118 && do { $Oopt_PedanticBottoms = ''; next arg; };
3120 /^-fno-pre-inlining$/
3121 && do { push(@HsC_flags, $_); next arg };
3123 /^-fdo-monad-eta-expansion$/
3124 && do { $Oopt_MonadEtaExpansion = $_; next arg; };
3126 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
3127 && do { push(@HsC_flags, $_); next arg; };
3129 # --------------- Warnings etc. ------
3131 /^-fwarn-(.*)$/ && do { push(@HsC_flags, $_); next arg; };
3133 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
3134 &squashHscFlag("-f$1");
3137 /^-W$/ && do { push(@HsC_flags, @MinusWOpts); next arg; };
3138 /^-Wall$/ && do { push(@HsC_flags, @MinusWallOpts); next arg; };
3139 /^(-Wnot|w)$/ && do { foreach (@Hsc_flags) {
3140 /^-fwarn-(.*)$/ && do { $_=''; };
3142 push(@HsC_antiflags, @StandardWarnings);
3145 # --------------- fun stuff ----------------
3147 /^-freport-compile$/ && do { push(@HsC_flags, $_); next arg; };
3149 # --------------- platform specific flags (for gcc mostly) ----------------
3151 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes,
3152 # for 2.6.x..?, does not apply for 2.7.2
3154 unshift(@CcBoth_flags, ( $_ ));
3157 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
3158 && do { # for GCC for SPARCs
3159 unshift(@CcBoth_flags, ( $_ ));
3162 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
3163 $StolenX86Regs = $1;
3166 #*************** ... and lots of debugging ones (form: -d* )
3168 # -d(no-)core-lint is done this way so it is turn-off-able.
3169 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
3170 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
3171 # Ditto for STG lint
3172 /^-dstg-lint/ && do { $StgLint = '-dstg-lint'; next arg; };
3173 /^-dno-stg-lint/ && do { $StgLint = ''; next arg; };
3175 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
3176 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
3177 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
3178 /^-dshow-rn-stats/ && do { push(@HsC_flags, $_); next arg; };
3179 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
3180 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
3181 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
3182 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
3184 #*************** ... and now all these -R* ones for its runtime system...
3186 /^-Rscale-sizes?(.*)/ && do {
3187 $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1);
3190 /^(-H|-Rmax-heapsize)(.*)/ && do {
3191 local($heap_size) = &grab_arg_arg(*Args,$1, $2);
3192 if ($heap_size =~ /(\d+)[Kk]$/) {
3193 $heap_size = $1 * 1000;
3194 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
3195 $heap_size = $1 * 1000 * 1000;
3196 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
3197 $heap_size = $1 * 1000 * 1000 * 1000;
3199 if ($heap_size <= 0) {
3200 print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n";
3201 $Specific_heap_size = 0;
3203 # if several heap sizes given, take the largest...
3204 } elsif ($heap_size >= $Specific_heap_size) {
3205 $Specific_heap_size = $heap_size;
3207 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n";
3211 /^(-K|Rmax-(stk|stack)size)(.*)/ && do {
3213 local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3);
3214 if ($stk_size =~ /(\d+)[Kk]$/) {
3215 $stk_size = $1 * 1000;
3216 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
3217 $stk_size = $1 * 1000 * 1000;
3218 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
3219 $stk_size = $1 * 1000 * 1000 * 1000;
3221 if ($stk_size <= 0) {
3222 print STDERR "$Pgm: resetting stack-size to zero!!! $stk_size\n";
3223 $Specific_stk_size = 0;
3225 # if several stack sizes given, take the largest...
3226 } elsif ($stk_size >= $Specific_stk_size) {
3227 $Specific_stk_size = $stk_size;
3229 print STDERR "$Pgm: ignoring stack-size-setting option ($flag $stk_size)...not the largest seen\n";
3233 /^-Rgc-stats$/ && do { $CollectingGCstats++;
3234 # the two RTSs do this diff ways; we will try to compensate
3237 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
3239 #---------- C high-level assembler (gcc) -------------------------------
3240 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
3242 # -dgcc-lint is a useful way of making GCC very fussy.
3243 # From alan@spri.levels.unisa.edu.au (Alan Modra).
3244 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
3245 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
3246 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
3248 # inject "#include <wurble>" into the compiler's C output!
3250 /^-#include(.*)/ && do {
3251 local($to_include) = &grab_arg_arg(*Args,'-#include', $1);
3252 push(@CcInjects, "#include $to_include\n");
3255 #---------- Linker (gcc, really) ---------------------------------------
3257 /^-static$/ && do { push(@Ld_flags, $_); next arg; };
3258 /^-no-hs-main$/ && do { $NoHaskellMain=1; next arg; };
3260 #---------- mixed cc and linker magic ----------------------------------
3261 # this optimisation stuff is finally sorted out later on...
3263 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
3265 /^-O[1-2]?$/ && do {
3266 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
3267 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
3269 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
3272 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
3274 /^-Ofile(.*)/ && do {
3276 local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1);
3277 @HsC_minusO3_flags = ();
3279 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
3282 s/\#.*//; # death to comments
3283 s/[ \t]+//g; # death to whitespace
3284 next if /^$/; # ditto, blank lines
3285 s/([()*{}])/\\$1/g; # protect shell metacharacters
3287 push(@CcBoth_flags, $1);
3289 push(@HsC_minusO3_flags, $_);
3295 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
3296 # in the consistency info
3300 #---------- linking .a file --------------------------------------------
3302 /^-Main(.*)/ && do {
3303 # specifies main or mainPrimIO to be linked
3307 #---------- catch unrecognized flags -----------------------------------
3310 print STDERR "$Pgm: unrecognised option: $_\n";
3316 } # end of processArgs