1 % (c) The GRASP/AQUA Project, Glasgow University, 1992-1997
4 This is the driver script for the Glasgow Haskell compilation system.
5 It is written in \tr{perl}. The first section includes a long
6 ``usage'' message that describes how the driver is supposed to work.
8 %************************************************************************
10 \section[Driver-usage]{Usage message}
12 %************************************************************************
15 ($Pgm = $0) =~ s|.*/||;
16 $ShortUsage = "\nUsage: For basic information, try the `-help' option.\n";
17 $LongUsage = "\n" . <<EOUSAGE;
18 Use of the Glorious Haskell Compilation System driver:
20 $Pgm [command-line-options-and-input-files]
22 ------------------------------------------------------------------------
23 This driver ($Pgm) guides each input file through (some of the)
24 possible phases of a compilation:
26 - unlit: extract code from a "literate program"
27 - hscpp: run code through the C pre-processor (if -cpp flag given)
28 - hsc: run the Haskell compiler proper
29 - gcc: run the C compiler (if compiling via C)
30 - as: run the assembler
33 For each input file, the phase to START with is determined by the
35 - .lhs literate Haskell: unlit
36 - .hs illiterate Haskell: hsc
37 - .hc C from the Haskell compiler: gcc
38 - .c C not from the Haskell compiler: gcc
39 - .s assembly language: as
40 - other passed directly to the linker: ld
42 If no files are given on the command line, input is taken from
43 standard input, and processing is as for an .hs file. (All output is
44 to stdout or stderr, however).
46 The phase at which to STOP processing is determined by a command-line
48 -E stop after generating preprocessed, de-litted Haskell (used in conjunction with -cpp)
49 -C stop after generating C (.hc output)
50 -S stop after generating assembler (.s output)
51 -c stop after generating object files (.o output)
53 Other commonly-used options are:
55 -O An `optimising' package of compiler flags, for faster code
57 -prof Compile for cost-centre profiling
58 (add -auto for automagic cost-centres on top-level functions)
60 -fglasgow-exts Allow Glasgow extensions (unboxed types, etc.)
62 -H14m Increase compiler's heap size
64 -M Output the Makefile rules recording the
65 dependencies of a list of Haskell files.
66 (ghc driver script calls upon the help of a
67 compatible mkdependHS script to do the actual
70 The User's Guide has more information about GHC's *many* options.
72 Given the above, here are some TYPICAL invocations of $Pgm:
74 # compile a Haskell module to a .o file, optimising:
76 # link three .o files into an executable called "test":
77 % $Pgm -o test Foo.o Bar.o Baz.o
78 # compile a Haskell module to C (a .hc file), using a bigger heap:
79 % $Pgm -C -H16m Foo.hs
80 # compile Haskell-produced C (.hc) to assembly language:
82 ------------------------------------------------------------------------
86 %************************************************************************
88 \section[Driver-init]{Initialisation}
90 %************************************************************************
92 The driver script need to be told where to find these executables, so
93 in the course of building the driver `executable', make-variables holding
94 these are prepended to the de-litted version of this file. The variables are:
99 HOSTPLATFORM TARGETPLATFORM
101 ProjectName ProjectVersion ProjectVersionInt ProjectPatchLevel
103 HscMajorVersion HscMinorVersion CcMajorVersion CcMinorVersion
107 bindir libdir libexecdir datadir
111 GHC_LIB_DIR GHC_RUNTIME_DIR GHC_UTILS_DIR GHC_INCLUDE_DIR
113 GHC_OPT_HILEV_ASM GhcWithNativeCodeGen
115 GHC_UNLIT GHC_HSCPP GHC_HSC GHC_SYSMAN
119 WAY_*_NAME WAY_*_HC_OPTS
125 Establish what executables to run for the various phases, what the
126 default options are for those phases, and other similar boring stuff.
129 select(STDERR); $| = 1; select(STDOUT); # no STDERR buffering, please.
131 $TargetPlatform = $TARGETPLATFORM;
133 $TopPwd = "${TOP_PWD}";
134 $InstBinDirGhc = "${bindir}";
135 $InstLibDirGhc = "${libdir}";
137 # Normally the same as InstLibDirGhc, but we accommodate
138 # for it being separate.
140 $InstLibExecDirGhc = "${libexecdir}";
141 $InstDataDirGhc = "${datadir}";
143 $Status = 0; # just used for exit() status
146 # set up signal handler
147 sub quit_upon_signal { &tidy_up_and_die(1, ''); }
148 $SIG{'INT'} = 'quit_upon_signal';
149 $SIG{'QUIT'} = 'quit_upon_signal';
151 # where to get "require"d .prl files at runtime (poor man's dynamic loading)
152 # (use LIB, not DATA, because we can't be sure of arch-independence)
153 @INC = ( ( $INSTALLING ) ? $InstLibDirGhc
154 : "$TopPwd/${CURRENT_DIR}" );
156 if ( $ENV{'TMPDIR'} ) { # where to make tmp file names
157 $Tmp_prefix = ($ENV{'TMPDIR'} . "/ghc$$");
159 print STDERR "TMPDIR has not been set to anything useful!\n" if (${TMPDIR} eq '');
160 $Tmp_prefix ="${TMPDIR}/ghc$$"; # TMPDIR set via Makefile when booting..
161 $ENV{'TMPDIR'} = ${TMPDIR}; # set the env var as well
164 # Some shells run into real trouble when command line and environment
165 # gets big (e.g., cmd lines of >4K to /bin/sh causes havoc on our
166 # Solaris-2.5.1 boxes - even though sysconf(_SC_ARG_MAX) reports 1M ...).
167 # To work around any such */bin/sh* problems, we will scribble such
168 # awfully long command lines into a temp file and exec that temp file
169 # with $(REAL_SHELL) (don't use the SHELL variable directly as this
170 # will normally get you the wrong thing when the driver is invoked
171 # from within `make'). If the REAL_SHELL variable isn't set, you'll
172 # get SHELL. This is all a terrible hack. (in case you hadn't reached
173 # the same conclusion by now :-)
177 if ( ! $ENV{'REAL_SHELL'} ) {
178 $ENV{'REAL_SHELL'} = $ENV{'SHELL'};
181 @Files_to_tidy = (); # files we nuke in the case of abnormal termination
183 $Unlit = ( $INSTALLING ) ? "$InstLibExecDirGhc/unlit"
184 : "$TopPwd/${CURRENT_DIR}/${GHC_UNLIT}";
188 $Diff = $CONTEXT_DIFF;
193 $HsCpp = # but this is re-set to "cat" (after options) if -cpp not seen
194 ( $INSTALLING ) ? "$InstLibExecDirGhc/hscpp"
195 : "$TopPwd/${CURRENT_DIR}/${GHC_HSCPP}";
198 $HsC = ( $INSTALLING ) ? "$InstLibExecDirGhc/hsc"
199 : "$TopPwd/${CURRENT_DIR}/${GHC_HSC}";
201 # For PVM fiends only
202 $SysMan = ( $INSTALLING ) ? "$InstLibExecDirGhc/SysMan"
203 : "$TopPwd/${CURRENT_DIR}/${GHC_SYSMAN}";
208 # HsC_rts_flags: if we want to talk to the LML runtime system
209 # NB: we don't use powers-of-2 sizes, because this may do
210 # terrible things to cache behavior.
212 $Specific_heap_size = 6 * 1000 * 1000;
213 $Specific_stk_size = 1000 * 1000;
214 $Scale_sizes_by = 1.0;
218 The variables set by @setupOptFlags@ represent parts of the
219 -O/-O2/etc ``templates,'' which are filled in later, using these.
220 These are the default values, which may be changed by user flags.
224 $Oopt_MaxSimplifierIterations = '-fmax-simplifier-iterations4';
225 $Oopt_PedanticBottoms = '-fpedantic-bottoms'; # ON by default
226 $Oopt_MonadEtaExpansion = '';
227 $Oopt_FinalStgProfilingMassage = '';
229 $Oopt_DoSpecialise = '-fspecialise';
230 $Oopt_FoldrBuild = 0; # *Off* by default!
231 $Oopt_FB_Support = ''; # was '-fdo-arity-expand';
232 # $Oopt_FoldrBuildWW = 0; # Off by default
233 $Oopt_FoldrBuildInline = ''; # was '-fdo-inline-foldr-build';
234 $Oopt_ShowSimplifierProgress = '';
235 } # end of setupOptFlags
237 # Assign defaults to these right away.
241 Things to do with C compilers/etc:
243 (added -Wimplicit: implicit prototypes cause very hard-to-find
244 problems, so I'm turing on the warnings -- SDM 4/5/98)
247 $CcRegd = $GHC_OPT_HILEV_ASM;
248 @CcBoth_flags = ('-S','-Wimplicit'); # flags for *any* C compilation
252 # those for all files,
253 # those only for .c files;
254 # those only for .hc files
257 @CcRegd_flags_c = ();
258 @CcRegd_flags_hc = ();
260 $As = ''; # "assembler" is normally GCC
263 $Lnkr = ''; # "linker" is normally GCC
266 # 'nm' is used for consistency checking (ToDo: mk-world-ify)
267 # ToDo: check the OS or something ("alpha" is surely not the crucial question)
268 $Nm = ($TargetPlatform =~ /^alpha-/) ? 'nm -B' : 'nm';
271 Warning packages that are controlled by -W and -Wall. The 'standard'
272 warnings that you get all the time are
274 -fwarn-overlapping-patterns
275 -fwarn-missing-methods
276 -fwarn-duplicate-exports
278 these are turned off by -Wnot.
281 @StandardWarnings = ('-fwarn-overlapping-patterns',
282 '-fwarn-missing-methods',
283 '-fwarn-duplicate-exports');
284 @MinusWOpts = (@StandardWarnings,
285 '-fwarn-incomplete-patterns',
286 '-fwarn-unused-binds',
287 '-fwarn-unused-imports');
288 @MinusWallOpts = (@MinusWOpts,
289 '-fwarn-unused-matches',
290 '-fwarn-type-defaults',
291 '-fwarn-name-shadowing',
292 '-fwarn-missing-signatures');
295 What options \tr{-user-setup-a} turn into (user-defined ``packages''
297 of options). Note that a particular user-setup implies a particular
298 Prelude ({\em including} its interface file(s)).
300 $BuildTag = ''; # default is sequential build w/ Appel-style GC
302 %BuildDescr = (# system ways begin
303 '', 'normal sequential',
307 '_mp', "$WAY_mp_NAME",
308 '_mg', "$WAY_mg_NAME",
326 '_B', "$WAY_B_NAME" );
328 # these are options that are "fed back" through the option processing loop
332 '_a', "$WAY_a_HC_OPTS",
333 '_b', "$WAY_b_HC_OPTS",
334 '_c', "$WAY_c_HC_OPTS",
335 '_d', "$WAY_d_HC_OPTS",
336 '_e', "$WAY_e_HC_OPTS",
337 '_f', "$WAY_f_HC_OPTS",
338 '_g', "$WAY_g_HC_OPTS",
339 '_h', "$WAY_h_HC_OPTS",
340 '_i', "$WAY_i_HC_OPTS",
341 '_j', "$WAY_j_HC_OPTS",
342 '_k', "$WAY_k_HC_OPTS",
343 '_l', "$WAY_l_HC_OPTS",
344 '_m', "$WAY_m_HC_OPTS",
345 '_n', "$WAY_n_HC_OPTS",
346 '_o', "$WAY_o_HC_OPTS",
347 '_A', "$WAY_A_HC_OPTS",
348 '_B', "$WAY_B_HC_OPTS",
351 '_p', "$WAY_p_HC_OPTS",
352 '_t', "$WAY_t_HC_OPTS",
353 '_u', "$WAY_u_HC_OPTS",
354 '_mp', "$WAY_mp_HC_OPTS",
355 '_mg', "$WAY_mg_HC_OPTS");
359 Import/include directories (\tr{-I} options) are sufficiently weird to
360 require special handling.
363 @Import_dir = ('.'); #-i things
364 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
366 # where to look for interface files (system hi's, i.e., prelude and syslibs)
367 @SysImport_dir = ( $INSTALLING )
368 ? ( "$InstLibDirGhc/imports/std" )
369 : ( "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std" );
371 # We need to look in ghc/ and glaExts/ when searching for implicitly needed .hi files, but
372 # we should really *not* look there for explicitly imported modules.
374 $Haskell1Version = 5; # i.e., Haskell 1.4
377 # Cpp symbols defined when we're processing Haskell source.
380 ( "-D__HASKELL1__=$Haskell1Version"
381 , "-D__GLASGOW_HASKELL__=$ProjectVersionInt"
383 # , "-D__CONCURRENT_HASKELL__"
386 @UserLibrary_dir= (); #-L things;...
387 @UserLibrary = (); #-l things asked for by the user
389 @SysLibrary_dir = ( ( $INSTALLING ) #-syslib things supplied by the system
391 : ( "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR"
392 , "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/gmp"
393 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std"
394 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std/cbits"
397 @SysLibrary = (); # will be built up as we go along
399 $TopClosureFile # defaults to 1.2 one; will be mangled later
401 # ( $INSTALLING) ? "$InstLibDirGhc/TopClosureXXXX.o"
402 # : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/main/TopClosureXXXX.o";
404 # make depend for Haskell
406 = ( $INSTALLING ) ? "$InstBinDirGhc/mkdependHS"
407 : "$TopPwd/$CURRENT_DIR/$GHC_UTILS_DIR/mkdependHS/mkdependHS";
409 @MkDependHS_flags = ();
411 # do_link flag should not be reset while rescanning the cmd-line.
413 $Specific_output_dir = ''; # set by -odir <dir>
414 $Specific_output_file = ''; # set by -o <file>; "-" for stdout
417 Function to initialise the per-compilation-unit globals that
418 are used to guide and control the invocation of the different phases.
421 sub initDriverGlobals {
423 # reset the following options:
424 # RTS flags to use while compiling
426 @HsP_flags = (); # these are the flags destined solely for
427 # the flex/yacc parser
432 The optimisations/etc to be done by the compiler are {\em normally}
433 expressed with a \tr{-O} (or \tr{-O2}) flag, or by its absence.
436 $OptLevel = 0; # no -O == 0; -O == 1; -O2 == 2; -Ofile == 3
437 $MinusO2ForC = 0; # set to 1 if -O2 should be given to C compiler
438 $StolenX86Regs = 4; # **HACK*** of the very worst sort
442 @Import_dir = ('.'); #-i things
443 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
448 We are given a list of files with various presumably-known suffixes
449 (unknown-suffix files go straight to the linker). For each file, we
450 begin by assuming that we'll run every phase over it. However: (1)
451 global flags (\tr{-c}, \tr{-S}, etc.) tell us not to run any phase
452 past a certain point; and (2) the file's suffix tells us what phase to
453 start with. Linking is weird and kept track of separately.
455 Here are the initial defaults applied to all files:
457 $Cpp_flag_set = 0; # (hack)
458 $Only_preprocess_C = 0; # pretty hackish
459 $Only_preprocess_hc = 0; # ditto
460 $Only_generate_deps = 0; # "
461 $PostprocessCcOutput = 0;
463 # native code-gen or via C?
464 $HaveNativeCodeGen = $GhcWithNativeCodeGen;
465 $HscOut = '-C='; # '-C=' ==> .hc output; '-S=' ==> .s output; '-N=' ==> neither
467 if $HaveNativeCodeGen && $TargetPlatform =~ /^(alpha)-/;
468 # TEMP: disable x86 & Sparc if $HaveNativeCodeGen && $TargetPlatform =~ /^(i386|alpha|sparc)-/;
469 $ProduceHi = '-hifile=';
475 $CollectingGCstats = 0;
476 $CollectGhcTimings = 0;
477 $DEBUGging = ''; # -DDEBUG and all that it entails (um... not really)
478 $PROFing = ''; # set to p or e if profiling
479 $PROFgroup = ''; # set to group if an explicit -Ggroup specified
480 $PROFauto = ''; # set to relevant hsc flag if -auto or -auto-all
481 $PROFcaf = ''; # set to relevant hsc flag if -caf-all
482 $PROFignore_scc = ''; # set to relevant parser flag if explicit sccs ignored
483 $UNPROFscc_auto = ''; # set to relevant hsc flag if forcing auto sccs without profiling
484 $TICKYing = ''; # set to t if compiling for ticky-ticky profiling
485 $PARing = ''; # set to p if compiling for PAR
486 $GRANing = ''; # set to g if compiling for GRAN
487 $Specific_hi_file = ''; # set by -ohi <file>; "-" for stdout
488 $Specific_dump_file = ''; # set by -odump <file>; "-" for stdout
489 $Using_dump_file = 0;
491 $Osuffix = ''; # default: use the normal suffix for that kind of output
493 $HiSuffix_prelude = '';
494 $Do_recomp_chkr = 0; # don't use the recompilatio checker unless asked
495 $Do_cc = -1; # a MAGIC indeterminate value; will be set to 1 or 0.
498 $Keep_hc_file_too = 0;
499 $Keep_s_file_too = 0;
500 $UseGhcInternals = 0; # if 1, may use GHC* modules
502 $DoAsmMangling = 1; # on by default, off by -fno-asm-mangling
504 $Dump_parser_output = 0;
506 $Dump_asm_splitting_info = 0;
507 $NoImplicitPrelude = 0;
508 # 1 => don't tell the linker to hoist in PrelMain.Main, as an
509 # external main is provided instead.
512 } # end of initDriverGlobals (Sigh)
514 # we split the argv passed to the driver into three:
519 # and files to be linked...
525 # cmd line options prefixing the unit we're compiling
530 We inject consistency-checking information into \tr{.hc} files (both
531 when created by the Haskell compiler and when compiled by the C
532 compiler), so that we can check that an executable is made from
533 consistently-built pieces. (The check is normally done just after
534 linking.) The checking is done by introducing/munging
535 \tr{what(1)}-style strings. Anyway, here are the relevant global
536 variables and their defaults:
538 $LinkChk = 0; # set to 0 if the link check should *not* be done
540 # major & minor version numbers; major numbers must always agree;
541 # minor disagreements yield a warning.
542 $HsC_major_version = $HscMajorVersion;
543 $HsC_minor_version = $HscMinorVersion;
544 $Cc_major_version = $CcMajorVersion;
545 $Cc_minor_version = $CcMinorVersion;
547 # options: these must always agree
548 $HsC_consist_options = ''; # we record, in this order:
549 # Build tag; debugging?
550 $Cc_consist_options = ''; # we record, in this order:
551 # Build tag; debugging?
554 %************************************************************************
556 \section[Driver-parse-argv]{Munge the command-line options}
558 %************************************************************************
560 Now slurp through the arguments.
563 &initDriverGlobals();
564 &splitCmdLine(@ARGV);
565 # Run through the cmd-line first time.
566 &processArgs(@Cmd_opts);
568 # Check to see if driver is only in the business
569 # to generate dependencies
570 if ( $Status == 0 && $Only_generate_deps ) {
572 push (@MkDependHS_flags, "-o$Osuffix") if $Osuffix;
573 push (@MkDependHS_flags, "-s$BuildTag") if $BuildTag;
574 # They're not (currently) needed, but we need to quote any -#include options
575 foreach (@Cmd_opts) {
576 s/-#include.*$/'$&'/g;
578 local($to_do) = "$MkDependHS @MkDependHS_flags @HsSourceCppOpts -- @Cmd_opts -- @Input_file" ;
579 &run_something($to_do, 'Haskell dependencies');
583 # if there are several input files,
584 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
585 # (except if linking, of course)
587 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
588 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
589 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
590 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
591 print STDERR "\tPerhaps the -odir option will do what you want.\n";
596 # check for various pathological -o and -odir combinations...
597 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
598 if ($Specific_output_file eq '-') {
599 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
601 } else { # amalgamate...
602 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
603 # ToDo: check we haven't got a junk name now...
604 $Specific_output_dir = ''; # reset
608 # crash and burn if there were errors
610 print STDERR $ShortUsage;
615 %************************************************************************
617 \section[Driver-post-argv-mangling]{Setup after reading options}
619 %************************************************************************
621 %************************************************************************
623 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
625 %************************************************************************
627 We come now to the default ``wads of options'' that are turned on by
628 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
629 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
632 The user can also specify his/her own list of options in a file; in
633 that case, the work is already done (see stuff about @minusO3@,
636 GHC allows very precise control of what happens during a compilation.
637 Core-to-Core and STG-to-STG passes can be run in any order, as many
638 times as you like. Individual transformations can be turned on or
641 Sadly, however, there are some interdependencies \& Things You Must
642 Not Do. Here is the list.
646 \item[\tr{-fspecialise}:]
647 The specialiser must have dependency-analysed input; but if you run
648 the simplifier to do this, you must not let it toss away unused
649 bindings! (The typechecker conveys some specialisation info via
650 ``unused'' bindings...)
652 \item[\tr{-ffloat-inwards}:]
653 Floating inwards should be done before strictness analysis, because
654 the latter will give better results.
656 \item[\tr{-fstatic-args}:]
657 The static-arguments-transformation pass {\em must} have the
658 simplifier run right after it.
660 \item[\tr{-fcalc-inlinings[12]}:]
661 Not required, but there may be slight gains by re-simplifying after
662 this is done. (You could then \tr{-fcalc-inlinings} again, just for
665 \item[\tr{-ffull-laziness}:]
666 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
667 that's run. (Um, well, howzabout the simplifier just once more...)
672 \item[\tr{-fupdate-analysis}:]
673 It really really wants to be the last STG-to-STG pass that is run.
678 sub setupOptimiseFlags {
684 '-ffloat-lets-exposing-whnf',
685 '-ffloat-primops-ok',
688 # '-fdo-lambda-eta-expansion', # too complicated
690 # '-flet-to-case', # no strictness analysis, so...
691 $Oopt_PedanticBottoms,
692 # $Oopt_MonadEtaExpansion, # no thanks
694 # These two work fine, if you really want no simplification at all,
695 # for bizarre test reasons. But you get really terrible code if you use them,
696 # for example: let x = e in x
697 # with dozens of redundant thunks etc. So I'm leaving them out.
699 # '-fsimpl-uf-use-threshold0',
700 # '-fessential-unfoldings-only',
703 # The presence of -fclone-binds is *temporary* to work around
704 # the fact that the desugarer in 3.0{2.3} does generate
705 # bindings with identical ids, and the type checker doesn't perform
706 # properly cloned type substitutions. Instead, we make sure that all
707 # binders are cloned first time through the simplifier.
709 # Will be properly fixed in the `new compiler` I hear, at which point
710 # the cloning can be turned off here.
715 $Oopt_MaxSimplifierIterations,
716 $Oopt_ShowSimplifierProgress,
719 # '-ffull-laziness', # removed 95/04 WDP following Andr\'e's lead
721 $Oopt_FinalStgProfilingMassage
724 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
726 '-fdo-eta-reduction',
728 # initial simplify: mk specialiser happy: minimum effort please
732 '-fkeep-spec-pragma-ids', # required before specialisation
734 # I don't understand why we want -fessential-unfoldings-only here
735 # If we have it, the following nasty thing happens:
739 # where "*" means exported.
740 # In the essential-unfoldings pass we still substitute f for g
741 # but we don't substitute E for f first. So we get
745 # The g=f will get reverse-substituted later, but it's untidy. --SLPJ
747 # SDM: Here's why it's necessary.
749 # If we unfold in the first pass before the specialiser is run
750 # we miss opportunities for specialisation because eg. wrappers
751 # have been inlined for specialisable functions.
753 # This shows up in PrelArr.lhs - the specialised instance for newArray
754 # calls the generic rangeSize, because rangeSize is strict and is
755 # replaced by its wrapper by the simplifier.
757 '-fessential-unfoldings-only',
758 '-fsimpl-uf-use-threshold0',
760 # See remark re: cloning in defn of minusnotO
764 '-fmax-simplifier-iterations1',
765 $Oopt_PedanticBottoms,
768 ($Oopt_DoSpecialise) ? (
772 '-fsimplify', # need dependency anal after specialiser ...
773 '[', # need tossing before calc-inlinings ...
775 '-ffloat-lets-exposing-whnf',
776 '-ffloat-primops-ok',
780 # '-fdo-eta-reduction',
781 '-fdo-lambda-eta-expansion',
783 $Oopt_PedanticBottoms,
784 $Oopt_MonadEtaExpansion,
785 $Oopt_MaxSimplifierIterations,
786 $Oopt_ShowSimplifierProgress,
788 # The presence of -fclone-binds is *crucial* here as
789 # -ffull-laziness (which we're about to do next) floats
790 # bindings outwards, so we better make sure that this
791 # doesn't result in the floating out of bindings
792 # with identical uniques, i.e., -ffull-laziness needs
793 # to be preceeded by a simplifier pass with -fclone-binds
798 # ($Oopt_FoldrBuildWW) ? (
799 # '-ffoldr-build-ww-anal',
800 # '-ffoldr-build-worker-wrapper',
804 # '-ffloat-lets-exposing-whnf',
805 # '-ffloat-primops-ok',
809 # '-fdo-eta-reduction',
810 # '-fdo-lambda-eta-expansion',
812 # $Oopt_PedanticBottoms,
813 # $Oopt_MonadEtaExpansion,
814 # $Oopt_MaxSimplifierIterations,
815 # $Oopt_ShowSimplifierProgress,
819 # this pass-ordering sequence was agreed by Simon and Andr\'e
820 # (WDP 94/07, 94/11).
823 ($Oopt_FoldrBuild) ? (
824 '-ffoldr-build-on', # desugar list comprehensions for foldr/build
828 '-fignore-inline-pragma', # **** NB!
829 '-fdo-foldr-build', # NB
831 '-ffloat-lets-exposing-whnf',
832 '-ffloat-primops-ok',
836 # '-fdo-eta-reduction',
837 '-fdo-lambda-eta-expansion', # After full laziness
839 $Oopt_PedanticBottoms,
840 $Oopt_MonadEtaExpansion,
841 $Oopt_MaxSimplifierIterations,
842 $Oopt_ShowSimplifierProgress,
851 '-ffloat-lets-exposing-whnf',
852 '-ffloat-primops-ok',
856 '-fdo-eta-reduction',
857 '-fdo-lambda-eta-expansion',
859 ($Oopt_FoldrBuildInline),
860 # you need to inline foldr and build
861 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
862 # but do reductions if you see them!
863 $Oopt_PedanticBottoms,
864 $Oopt_MonadEtaExpansion,
865 $Oopt_MaxSimplifierIterations,
866 $Oopt_ShowSimplifierProgress,
874 '-ffloat-lets-exposing-whnf',
875 '-ffloat-primops-ok',
879 # '-fdo-eta-reduction',
880 '-fdo-lambda-eta-expansion',
882 '-flet-to-case', # Aha! Only done after strictness analysis
883 $Oopt_PedanticBottoms,
884 $Oopt_MonadEtaExpansion,
885 $Oopt_MaxSimplifierIterations,
886 $Oopt_ShowSimplifierProgress,
891 # Case-liberation for -O2. This should be after
892 # strictness analysis and the simplification which follows it.
896 # : "-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 ]" ),
898 # Final clean-up simplification:
903 '-ffloat-lets-exposing-whnf',
904 '-ffloat-primops-ok',
908 # '-fdo-eta-reduction',
909 '-fdo-lambda-eta-expansion',
912 '-fignore-inline-pragma', # **** NB!
913 $Oopt_FoldrBuildInline,
914 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
915 # but still do reductions if you see them!
916 $Oopt_PedanticBottoms,
917 $Oopt_MonadEtaExpansion,
918 $Oopt_MaxSimplifierIterations,
919 $Oopt_ShowSimplifierProgress,
924 #LATER: '-fcalc-inlinings2', -- pointless for 2.01
928 $Oopt_FinalStgProfilingMassage,
934 # SPECIAL FLAGS for -O2
936 '-fupdate-analysis', # virtually useless; relegated to -O2
943 Sort out what we're going to do about optimising. First, the @hsc@
944 flags and regular @cc@ flags to worry about:
946 if ( $OptLevel <= 0 ) {
948 # for this level, we tell the parser -fignore-interface-pragmas
949 push(@HsC_flags, '-fignore-interface-pragmas');
950 # and tell the compiler not to produce them
951 push(@HsC_flags, '-fomit-interface-pragmas');
953 &add_Hsc_flags( @HsC_minusNoO_flags );
954 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
956 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
958 &add_Hsc_flags( @HsC_minusO_flags );
959 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
960 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
961 # but it *is* useful in compiling the garbage collector.
963 } else { # -Ofile, then...
965 &add_Hsc_flags( @HsC_minusO3_flags );
966 push(@HsC_flags, $Oopt_FinalStgProfilingMassage) if $Oopt_FinalStgProfilingMassage;
968 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
971 } # setupOptimiseFlags
975 %************************************************************************
977 \subsection{Check for consistency, etc.}
979 %************************************************************************
981 Sort out @$BuildTag@, @$PROFing@, @$PARing@,
982 @$GRANing@, @$TICKYing@:
984 sub setupBuildFlags {
987 # PROFILING stuff after argv mangling:
989 # warn about any scc exprs found (in case scc used as identifier)
990 push(@HsP_flags, '-W');
992 # add -auto sccs even if not profiling !
993 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
996 push(@HsC_flags, $PROFauto) if $PROFauto;
997 push(@HsC_flags, $PROFcaf) if $PROFcaf;
998 #push(@HsC_flags, $PROFdict) if $PROFdict;
1000 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
1002 # Ignore user sccs when auto annotating, but warn when doing so.
1003 $PROFignore_scc = '-W' if $PROFauto;
1005 push(@HsP_flags, (($PROFignore_scc) ? $PROFignore_scc : '-S'));
1007 #if ( $BuildTag ne '' ) {
1008 # local($b) = $BuildDescr{$BuildTag};
1009 # if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
1010 # if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
1011 # if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
1013 # # ok to have a user-way profiling build
1014 # # eval the profiling opts ... but leave user-way BuildTag
1015 # if ($PROFing eq 'p') { &processArgs(split(' ', $SetupOpts{'_p'})); } # eval($EvaldSetupOpts{'_p'}); }
1017 if ( $PROFing eq 'p' ) {
1018 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
1019 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
1020 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
1023 } elsif ( $PARing eq 'p' ) {
1024 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
1025 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
1028 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
1029 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
1033 } elsif ( $GRANing eq 'g' ) {
1034 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
1037 } elsif ( $TICKYing eq 't' ) {
1043 After the sanity checks, add flags to the necessary parts of the driver pipeline:
1046 if ( $BuildTag ne '' ) { # something other than normal sequential...
1048 local($Tag) = "${BuildTag}";
1049 $Tag =~ s/_//; # move the underscore to the back
1051 $HscOut = '-C='; # must go via C
1052 &processArgs(split(' ', $SetupOpts{$BuildTag}));
1053 # eval($EvaldSetupOpts{$BuildTag});
1057 Decide what the consistency-checking options are in force for this run:
1060 $HsC_consist_options = "${BuildTag},${DEBUGging}";
1061 $Cc_consist_options = "${BuildTag},${DEBUGging}";
1064 # Funny place to put it, but why not.
1066 if ( $HiSuffix_prelude eq '' ) {
1067 local($Tag) = "${BuildTag}";
1069 $Tag = "${Tag}_" if $Tag ne '';
1070 $HiSuffix_prelude="${Tag}hi";
1075 %************************************************************************
1077 \subsection{Add on machine-specific C-compiler flags}
1079 %************************************************************************
1081 Shove on magical machine-specific options. We use \tr{unshift} to
1082 stick them on the {\em front} of the arrays, so that ``later''
1083 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
1085 Note: a few ``always apply'' flags were set at the very beginning.
1090 if ($TargetPlatform =~ /^alpha-/) {
1091 unshift(@CcBoth_flags, ('-static'));
1093 } elsif ($TargetPlatform =~ /^hppa/) {
1094 unshift(@CcBoth_flags, ('-static'));
1096 # We don't put in '-mlong-calls', because it's only
1097 # needed for very big modules (sigh), and we don't want
1098 # to hobble ourselves further on all the other modules
1101 # [Dated comment (gcc-2.6.x?), -mlong-calls is no longer
1102 # a supported gcc HPPA flag]
1103 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
1104 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
1105 # (very nice, but too bad the HP /usr/include files don't agree.)
1107 } elsif ($TargetPlatform =~ /^i386-/) {
1108 # -fno-defer-pop : basically the same game as for m68k
1110 # -fomit-frame-pointer : *must* in .hc files; because we're stealing
1111 # the fp (%ebp) for our register maps.
1113 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1114 unshift(@CcRegd_flags_hc, '-fomit-frame-pointer');
1115 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1117 } elsif ($TargetPlatform =~ /^m68k-/) {
1118 # -fno-defer-pop : for the .hc files, we want all the pushing/
1119 # popping of args to routines to be explicit; if we let things
1120 # be deferred 'til after an STGJUMP, imminent death is certain!
1122 # -fomit-frame-pointer : *don't*
1123 # It's better to have a6 completely tied up being a frame pointer
1124 # rather than let GCC pick random things to do with it.
1125 # (If we want to steal a6, then we would try to do things
1126 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1128 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1129 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1130 # maybe gives reg alloc a better time
1131 # also: -fno-defer-pop is not sufficiently well-behaved without it
1133 } elsif ($TargetPlatform =~ /^mips-/) {
1134 unshift(@CcBoth_flags, ('-static'));
1136 } elsif ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1137 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1138 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1139 } elsif ($TargetPlatform =~ /^sparc-/) {
1141 } # end of setupMachOpts
1144 %************************************************************************
1146 \subsection{Set up for warnings}
1148 %************************************************************************
1150 Several warnings are turned on by default. These are supposed to be
1151 the 'I'm pretty sure you've made a mistake here' kind of warnings.
1152 The rest are turned on by the -W and -Wall options, or individually
1153 via their -fwarn and -fno-warn flags.
1156 sub setupWarningFlags {
1157 &add_Hsc_flags( @StandardWarnings );
1161 Same unshifting magic, but for special linker flags.
1163 The configure script determines whether the object file symbol tables
1164 have a leading underscore, and sets @LeadingUnderscore@ accordingly.
1165 (The driver script `sees' the setting of the @LeadingUnderscore@
1166 by having the Makefile prepend it).
1170 local($uscore) = ( ${LeadingUnderscore} eq 'YES' ) ? '_' : '';
1173 (($Ld_main) ? ( '-u', "${uscore}Main_" . $Ld_main . '_closure' ) : ()));
1175 # things that are referenced by the RTS - make sure that we pull 'em in
1177 ( '-u', "${uscore}PrelBase_Izh_static_info"
1178 ,'-u', "${uscore}PrelBase_Czh_static_info"
1179 ,'-u', "${uscore}PrelBase_Fzh_static_info"
1180 ,'-u', "${uscore}PrelBase_Dzh_static_info"
1181 ,'-u', "${uscore}PrelAddr_Azh_static_info"
1182 ,'-u', "${uscore}PrelAddr_Wzh_static_info"
1183 ,'-u', "${uscore}PrelAddr_I64zh_static_info"
1184 ,'-u', "${uscore}PrelAddr_W64zh_static_info"
1185 ,'-u', "${uscore}PrelStable_StablePtr_static_info"
1186 ,'-u', "${uscore}PrelBase_Izh_con_info"
1187 ,'-u', "${uscore}PrelBase_Czh_con_info"
1188 ,'-u', "${uscore}PrelBase_Fzh_con_info"
1189 ,'-u', "${uscore}PrelBase_Dzh_con_info"
1190 ,'-u', "${uscore}PrelAddr_Azh_con_info"
1191 ,'-u', "${uscore}PrelAddr_Wzh_con_info"
1192 ,'-u', "${uscore}PrelAddr_I64zh_con_info"
1193 ,'-u', "${uscore}PrelAddr_W64zh_con_info"
1194 ,'-u', "${uscore}PrelStable_StablePtr_con_info"
1195 ,'-u', "${uscore}PrelBase_False_static_closure"
1196 ,'-u', "${uscore}PrelBase_True_static_closure"
1197 ,'-u', "${uscore}PrelPack_unpackCString_closure"
1199 if (!$NoHaskellMain) {
1200 unshift (@Ld_flags,'-u', "${uscore}PrelMain_mainIO_closure");
1202 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1203 # sometimes we have lots of toc entries...
1204 # unshift(@Ld_flags, ('-Xlinker -bbigtoc -Xlinker -bnoquiet'));
1205 unshift(@Ld_flags, ('-Xlinker -bbigtoc'));
1208 } # end of setupLinkOpts
1212 %************************************************************************
1214 \subsection{Set up include paths and system-library enslurpment}
1216 %************************************************************************
1218 Now that we know what garbage-collector, etc., are required, we can
1219 finalise our list of libraries to slurp through, and generally Get
1224 # default includes must be added AFTER option processing
1225 if ( ! $INSTALLING ) {
1226 push (@Include_dir, "$TopPwd/${CURRENT_DIR}/${GHC_INCLUDE_DIR}");
1228 push (@Include_dir, "$InstLibDirGhc/includes");
1229 push (@Include_dir, "$InstLibDirGhc/includes");
1231 } # end of setupIncPaths
1236 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1239 foreach $f (@SysLibrary) {
1240 next if $f =~ /_cbits/;
1241 $f .= $BuildTag if $f =~ /^-lHS/;
1244 # Push library HSrts, plus boring clib bit
1245 push(@SysLibrary, "-lHSrts${BuildTag}");
1248 # RTS compiled with cygwin32, uses the WinMM API
1249 # to implement the itimers, since cygwin.dll does not
1250 # support it. Only reqd. for `ways' that use itimers.
1252 push(@SysLibrary, '-lwinmm') if $TargetPlatform eq 'i386-unknown-cygwin32';
1254 # Push the pvm libraries
1255 if ($BuildTag eq '_mp') {
1256 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1257 push(@SysLibrary, "-L$pvmlib", '-lgpvm3', '-lpvm3');
1258 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1259 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1260 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1261 push(@SysLibrary, '-lsocket', '-lnsl');
1265 # Push the GNU multi-precision arith lib; and the math library
1267 # If this machine has GMP already installed, then we'll get the installed
1268 # lib here, because presumably the one in the tree won't have been built.
1270 if ($LibGmp eq 'not-installed') {
1271 push(@SysLibrary, "-lgmp");
1273 push(@SysLibrary, "-l$LibGmp");
1276 push(@SysLibrary, '-lm');
1279 %************************************************************************
1281 \subsection{Check that this system was built to do what we are asking}
1283 %************************************************************************
1285 Before continuing we check that the appropriate build is available.
1288 #die "$Pgm: no BuildAvail?? $BuildTag\n" if $BuildDescr{$BuildTag} eq '' ; # sanity
1290 if ( $BuildDescr{$BuildTag} eq '' ) {
1291 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1292 "' \"build\" is not available with your GHC setup.\n";
1293 print STDERR "(It was not configured for it at your site.)\n";
1294 print STDERR $ShortUsage;
1298 } # end of setupSyslibs
1302 %************************************************************************
1304 \subsection{Final miscellaneous setup bits before we start going}
1306 %************************************************************************
1308 Record largest specific heapsize, if any.
1310 sub setupHeapStackSize {
1311 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1312 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1313 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1314 push(@HsC_rts_flags, "-K$Specific_stk_size");
1318 If no input or link files seen, then we let 'em feed in stdin; this is
1319 mainly for debugging.
1323 if ($#Input_file < 0 && $#Link_file < 0) {
1324 @Input_file = ( '-' );
1326 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1327 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n" if -t;
1328 while (<STDIN>) { print INF $_; }
1329 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1334 Tell the world who we are, if they asked.
1336 print STDERR "${ProjectName}, version ${ProjectVersion}, patchlevel ${ProjectPatchLevel}\n"
1340 %************************************************************************
1342 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1344 %************************************************************************
1346 Process the input files; don't continue with linking if there are
1347 problems (global variable @$Status@ non-zero).
1349 foreach $ifile (@Input_file) {
1350 &ProcessInputFile($ifile);
1353 if ( $Status > 0 ) { # don't link if there were errors...
1354 print STDERR $ShortUsage;
1359 # append last minute flags linker and consistency flags
1366 Link if appropriate.
1369 local($libdirs) = '';
1371 # glue them together:
1372 push(@UserLibrary_dir, @SysLibrary_dir);
1374 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1376 # for a linker, use an explicitly given one, or the going C compiler ...
1377 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1379 if ( ($Specific_output_file eq '') &&
1380 ($TargetPlatform eq 'i386-unknown-cygwin32') ) {
1381 $Specific_output_file = 'main.exe';
1382 print STDERR "Output file not specified, defaulting to \"main.exe\"\n";
1385 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1386 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1388 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $TopClosureFile $libdirs @UserLibrary @SysLibrary";
1389 &run_something($to_do, 'Linker');
1391 # finally, check the consistency info in the binary
1392 local($executable) = $Files_to_tidy[0];
1393 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1396 # dynamically load consistency-chking code; then do it.
1397 require('ghc-consist.prl')
1398 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1400 &chk_consistency_info ( $executable );
1403 # if PVM parallel stuff, we do truly weird things.
1404 # Essentially: (1) move the executable over to where PVM expects
1405 # to find it. (2) create a script in place of the executable
1406 # which will cause the program to be run, via SysMan.
1407 if ( $PARing eq 'p' ) {
1408 local($pvm_executable) = $executable;
1409 local($pvm_executable_base);
1411 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1412 local($pwd) = `pwd`;
1414 $pwd =~ s/^\/tmp_mnt//;
1415 $pvm_executable = "$pwd/$pvm_executable";
1418 $pvm_executable =~ s|/|=|g; # make /s into =s
1419 $pvm_executable_base = $pvm_executable;
1421 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1422 . "/$pvm_executable";
1424 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1426 # OK, now create the magic script for "$executable"
1427 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1428 print EXEC <<EOSCRIPT1;
1429 eval 'exec perl -S \$0 \${1+"\$@"}'
1430 if \$running_under_some_shell;
1431 # =!=!=!=!=!=!=!=!=!=!=!
1432 # This script is automatically generated: DO NOT EDIT!!!
1433 # Generated by Glasgow Haskell, version ${ProjectVersion} ${ProjectPatchLevel}
1435 \$pvm_executable = '$pvm_executable';
1436 \$pvm_executable_base = '$pvm_executable_base';
1437 \$SysMan = '$SysMan';
1440 print EXEC <<\EOSCRIPT2;
1441 # first, some magical shortcuts to run "commands" on the binary
1443 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1445 system("$cmd $pvm_executable");
1449 # OK, really run it; process the args first
1450 $ENV{'PE'} = $pvm_executable_base;
1452 $nprocessors = 2; # the default
1456 # ToDo: handle --RTS
1457 args: while ($a = shift(@ARGV)) {
1458 if ( $a eq '+RTS' ) {
1460 } elsif ( $a eq '-RTS' ) {
1463 if ( $a eq '-d' && $in_RTS_args ) {
1465 } elsif ( $a =~ /^-N(\d+)/ && $in_RTS_args ) {
1468 push(@nonPVM_args, $a);
1472 local($return_val) = 0;
1473 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
1475 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
1478 close(EXEC) || die "Failed closing $executable\n";
1479 chmod 0755, $executable;
1483 # that... that's all, folks!
1485 exit $Status; # will still be 0 if all went well
1488 %************************************************************************
1490 \section[Driver-do-one-file]{How to process a single input file}
1492 %************************************************************************
1495 sub ProcessInputFile {
1496 local($ifile) = @_; # input file name
1497 local($ifile_root); # root of or basename of input file
1498 local($ofile_target); # ultimate output file we hope to produce
1499 # from input file (need to know for recomp
1500 # checking purposes)
1501 local($hifile_target);# ditto (but .hi file)
1502 local($ofile_c_stub_target);
1503 local($ofile_h_stub_target);
1506 Handle the weirdity of input from stdin.
1508 if ($ifile ne '-') {
1509 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1510 $ofile_target = # may be reset later...
1511 ($Specific_output_file ne '' && ! $Do_lnkr)
1512 ? $Specific_output_file
1513 : &odir_ify($ifile_root, 'o');
1514 $hifile_target= ($Specific_hi_file ne '')
1516 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1517 # NB: may change if $ifile_root isn't module name (??)
1518 ($ofile_c_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.c/;
1519 ($ofile_h_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.h/;
1521 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1522 $ifile_root = '_stdin';
1523 $ofile_target = '_stdout'; # gratuitous?
1524 $hifile_target= '_stdout'; # ditto?
1528 We need to decide what phases of the compilation system we will run
1529 over this file. The defaults are the ones established when processing
1530 flags. (That established what the last phase run for all files is.)
1532 We do the pre-recompilation-checker phases here; the rest later.
1536 Look at the suffix and decide what initial phases of compilation may
1537 be dropped off for this file. Also the rather boring business of
1538 which files are coming-in/going-out.
1540 Again, we'll do the post-recompilation-checker parts of this later.
1542 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1543 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1546 # names of the files to stuff between phases
1547 # defaults are temporaries
1548 local($in_lit2pgm) = $ifile;
1549 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1550 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1551 local($hsc_hi) = "$Tmp_prefix.hi";
1552 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1553 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1554 local($as_out) = $ofile_target;
1556 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
1558 # OK, let's strip off some literate junk..
1560 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
1562 $lit2pgm_hscpp = $ifile;
1568 # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas
1569 &check_for_source_options($lit2pgm_hscpp,$ifile);
1571 # Options found in the source file take a back seat, i.e., we scan
1572 # them first. Only process the command line again if source file
1573 # contained anything of interest *or* there's more than one
1574 # input file (we have to reset the options).
1576 if ( $#Input_file >= 0 || $#File_options >= 0) {
1577 #@File_options = (@File_options, @Cmd_opts);
1579 # Now process the command line
1580 &initDriverGlobals();
1581 &processArgs((@File_options,@Cmd_opts));
1582 print STDERR "\nEffective command line: " .
1583 join(' ',(@File_options,@Cmd_opts)) . "\n" if $Verbose;
1586 # Having got the effective command line scanned, set up
1587 # the various options in prep for some real work.
1589 # check the sanity of the BuildTag we're about to use,
1590 # and if needs be, add some more flags and setup to
1591 # the different phases.
1594 &setupOptimiseFlags();
1597 &setupWarningFlags();
1598 &setupHeapStackSize();
1601 # These two variables need to be set after the
1602 # command-line has been processed and the build options
1603 # have be seen set up. This is because command-line options
1604 # can control whether to compile vias C or not.
1606 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1608 : ( ($HscOut eq '-C=') ? 1 : 0 );
1609 local($do_as) = $Do_as;
1610 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1611 local($hsc_out_c_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.c" : "";
1612 local($hsc_out_h_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.h" : "";
1614 if ($Only_preprocess_hc) { # stop after having run $Cc -E
1617 if ($Only_preprocess_C) { # stop after having run $hscpp
1618 $do_hsc=0; $do_cc = 0; $do_as=0;
1619 } elsif ($ifile =~ /.lhs$/ || $ifile =~ /.hs$/ ) {
1621 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
1622 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1624 $hsc_out_c_stub = '';
1625 $hsc_out_h_stub = '';
1626 } elsif ($ifile =~ /\.c$/) {
1627 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1628 $hsc_out = $ifile; $is_hc_file = 0;
1629 $hsc_out_c_stub = '';
1630 $hsc_out_h_stub = '';
1631 } elsif ($ifile =~ /\.[sS]$/) {
1632 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
1634 } else { # don't know what it is, but nothing to do herein...
1635 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
1638 # hack to avoid running hscpp
1639 $HsCpp = $Cat if ! $Cpp_flag_set;
1641 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) if $do_hscpp;
1645 We now think about whether to run hsc/cc or not (when hsc produces .s
1646 stuff, it effectively takes the place of both phases).
1647 To get the output file name right: for each phase that we are {\em
1648 not} going to run, set its input (i.e., the output of its preceding
1649 phase) to @"$ifile_root.<suffix>"@.
1652 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
1655 # Warning issued if -keep-hc-file-too is used without
1656 # -fvia-C (or the equivalent)
1658 if ( $HscOut ne '-C=' && $Keep_hc_file_too ) {
1659 print STDERR "$Pgm: warning: Native code generator to be used, -keep-hc-file-too will be ignored\n";
1662 if (! $do_cc && ! $do_as) { # stopping after hsc
1663 $hsc_out = ($Specific_output_file ne '')
1664 ? $Specific_output_file
1665 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
1667 $ofile_target = $hsc_out; # reset
1670 if (! $do_as) { # stopping after gcc (or hsc)
1671 $cc_as = ($Specific_output_file ne '')
1672 ? $Specific_output_file
1673 : &odir_ify($ifile_root, ( $Only_preprocess_hc ) ? 'i' : 's');
1675 $ofile_target = $cc_as; # reset
1681 Now the Haskell compiler, C compiler, and assembler
1685 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
1686 $ofile_target, $hifile_target,
1687 $going_interactive);
1690 if (-f $hsc_out_h_stub) {
1691 &run_something("cp $hsc_out_h_stub $ofile_h_stub_target", 'Copy foreign export header file');
1694 if (-f $hsc_out_c_stub) {
1695 &run_something("cp $hsc_out_c_stub $ofile_c_stub_target", 'Copy foreign export C stubs');
1696 local ($hsc_out_s_stub);
1697 local ($hsc_out_o_stub);
1698 ($ofile_s_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$/\.s/;
1699 ($ofile_o_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$/\.o/;
1700 &runGcc (0, $ofile_c_stub_target, $ofile_s_stub_target);
1701 &runAs ($ofile_o_stub_target, $ofile_s_stub_target);
1703 # Bring the C stub protos into scope when compiling the .hc file.
1705 push (@CcInjects, "#include \"${hsc_out_h_stub}\"\n");
1706 # Hack - ensure that the stub .h file is included in the OPTIONS section
1707 # if the .hc file is saved.
1708 push (@File_options, "-#include \"${ofile_h_stub_target}\"\n");
1713 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
1714 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root) if ! $Only_preprocess_hc;
1717 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
1719 # save a copy of the .s file..
1720 &saveIntermediate($ifile_root , "s" , $cc_as) if ($do_as && $Keep_s_file_too);
1721 &runAs($as_out, $ifile_root) if $do_as;
1724 Finally, decide what to queue up for linker input.
1726 # tentatively assume we will eventually produce linker input:
1727 push(@Link_file, &odir_ify($ifile_root, 'o'));
1729 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
1731 if ( $ifile !~ /\.(lhs|hs|hc|c|s|a|S)$/ && $ifile !~ /_hc$/ ) {
1732 # There's sometimes confusion regarding .hi files; users
1733 # supplying them on the command line.
1734 if ( $ifile =~ /\.hi$/ ) {
1735 print STDERR "$Pgm: warning: found `$ifile' on command line; interface files should not be supplied here - ignoring it.\n";
1737 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n";
1739 # oops; we tentatively pushed the wrong thing; fix & do the right thing
1740 pop(@Link_file); push(@Link_file, $ifile);
1744 } # end of ProcessInputFile
1747 %************************************************************************
1749 \section[Driver-run-phases]{Routines to run the various phases}
1751 %************************************************************************
1755 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
1759 # Only add #line pragma if we're going to need it.
1760 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && " if ($Cpp_flag_set);
1761 $to_do .= "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
1763 push(@Files_to_tidy, $lit2pgm_hscpp );
1765 &run_something($to_do, 'literate pre-processor');
1771 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
1775 # Strictly speaking, echoing of the following line pragma is only required
1776 # on non-delit'ed input, as we've already added it during de-lit. However,
1777 # hscpp will then add a {-# LINE 1 "$lit2pgm_hsc" -} to the top of the file,
1778 # which is not very informative (but harmless). Hence, we uniformly have
1779 # {-# LINE 1 "$in_lit2pgm" #-} as the first line to all cpp'ed hsc input.
1781 $to_do = "echo '{-# LINE 1 \"$in_lit2pgm\" -}' > $hscpp_hsc && ";
1783 if ($HsCpp eq $Cat) {
1784 $to_do .= "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
1785 push(@Files_to_tidy, $hscpp_hsc );
1786 &run_something($to_do, 'Ineffective C pre-processor');
1788 local($includes) = '-I' . join(' -I',@Include_dir);
1789 $to_do .= "$HsCpp $Verbose @HsCpp_flags @HsSourceCppOpts $includes $lit2pgm_hscpp >> $hscpp_hsc";
1790 push(@Files_to_tidy, $hscpp_hsc );
1791 &run_something($to_do, 'Haskellised C pre-processor');
1794 if ( $Only_preprocess_C ) {
1795 $to_do = "$Cat $hscpp_hsc";
1796 &run_something($to_do, '');
1804 sub runHscAndProcessInterfaces {
1805 local($ifile, $hscpp_hsc, $ifile_root,
1806 $ofile_target, $hifile_target,
1807 $going_interactive) = @_;
1809 # $ifile is the original input file
1810 # $hscpp_hsc post-unlit, post-cpp, etc., input file
1811 # $ifile_root input filename minus suffix
1812 # $ofile_target the output file that we ultimately hope to produce
1813 # $hifile_target the .hi file ... (ditto)
1815 local($source_unchanged) = 1;
1817 # Check if the source file is up to date relative to the target; in
1818 # that case we say "source is unchanged" and let the compiler bail out
1819 # early if the import usage information allows it.
1821 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
1822 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
1824 # The informational messages below are now conditional on -v being set -- SOF
1825 if ( $ofile_target ne "_stdin.s" && ! -f $ofile_target ) {
1826 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n" if $Verbose;
1827 $source_unchanged = 0;
1830 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
1831 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
1833 if ( $hifile_target ne "_stdout" && ! -f $hifile_target ) {
1834 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n" if $Verbose;
1835 $source_unchanged = 0;
1838 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
1839 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
1841 if ( $ofile_target ne "_stdin.s" && $i_mtime > $o_mtime) {
1842 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n" if $Verbose;
1843 $source_unchanged = 0;
1846 # Tell the compiler which version we're using
1847 push(@HsC_flags, "-fhi-version=${ProjectVersionInt}");
1849 # So if source_unchanged is still "1", we pass on the good news to the compiler
1850 # The -recomp flag can disable this, forcing recompilation
1851 if ($Do_recomp_chkr && $source_unchanged) {
1852 push(@HsC_flags, '-fsource-unchanged');
1857 &runHsc($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive);
1859 # See if it bailed out early, saying nothing needed doing.
1860 # We work this out by seeing if it created an output .hi file
1862 if ( ! -f $hsc_hi && $ProduceHi !~ /-nohifile=/ ) {
1863 # Doesn't exist, so we bailed out early.
1864 # Tell the C compiler and assembler not to run
1865 $do_cc = 0; $do_as = 0;
1867 # Update dependency info, touch both object file and
1868 # interface file, so that the following invariant is
1871 # a dependent module's interface file should after recompilation
1872 # checking be newer than the interface files of its imports.
1874 # That is, if module A's interface file changes, then module B
1875 # (which import from A) needs to be checked.
1876 # If A's change does not affect B, which causes the compiler to bail
1877 # out early, we still need to touch the interface file of B. The reason
1878 # for this is that B may export A's interface.
1880 &run_something("touch $ofile_target",
1881 "Touch $ofile_target, to propagate dependencies") if $HscOut ne '-N=';
1882 &run_something("touch $hifile_target",
1883 "Touch $hifile_target, to propagate dependencies") if $ProduceHi =~ /-nohifile=/ ;
1887 # Didn't bail out early (new .hi file) so we thunder on
1889 # If non-interactive, heave in the consistency info at the end
1890 # NB: pretty hackish (depends on how $output is set)
1891 if ( ! $going_interactive ) {
1892 if ( $HscOut eq '-C=' ) {
1893 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
1895 } elsif ( $HscOut eq '-S=' ) {
1896 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
1897 $consist =~ s/,/./g;
1898 $consist =~ s/\//./g;
1899 $consist =~ s/-/_/g;
1900 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
1901 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
1903 &run_something($to_do, 'Pin on Haskell consistency info');
1907 # Interface-handling is important enough to live off by itself
1908 if ( $ProduceHi !~ /-nohifile=/ ) { # If we've produced one, process it.
1909 require('ghc-iface.prl') || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
1910 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
1912 # if we're going to split up object files,
1913 # we inject split markers into the .hc file now
1914 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
1915 &inject_split_markers ( $hsc_out );
1918 # save a copy of the .hc file, even if we are carrying on...
1919 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
1920 &saveIntermediate($ifile_root , "hc" , $hsc_out);
1930 local($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive) = @_;
1932 # prepend comma to HsP flags (so hsc can tell them apart...)
1933 foreach $a ( @HsP_flags ) { $a = ",$a" unless $a =~ /^,/; }
1935 &makeHiMap() unless $HiMapDone;
1936 push(@HsC_flags, "-himap=$HiIncludeString");
1938 # here, we may produce .hc/.s and/or .hi files
1939 local($output) = '';
1940 #@Files_to_tidy = ();
1942 if ( $going_interactive ) {
1943 # don't need .hi unless we're going to show it on stdout:
1944 $ProduceHi = '-nohifile=' if ! $HiOnStdout;
1945 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
1948 # set up for producing output/.hi; note that flag twiddling
1949 # may mean that nothing will actually be produced:
1950 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out -F=$hsc_out_c_stub -FH=$hsc_out_h_stub";
1951 push(@Files_to_tidy, $hsc_hi, $hsc_out, $hsc_out_c_stub, $hsc_out_h_stub );
1953 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
1954 if ( $CollectingGCstats ) {
1955 push(@HsC_rts_flags, "-S$ifile_root.stat");
1956 push(@Files_to_tidy, "$ifile_root.stat");
1959 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
1960 # emit nofibbish time/bytes-alloc stats to stderr;
1961 # see later .stat file post-processing
1962 print STDERR "warning: both -Rgc-stats and -Rghc-timing used, -Rghc-timing wins." if $CollectingGCstats;
1963 push(@HsC_rts_flags, "-s$Tmp_prefix.stat");
1964 push(@Files_to_tidy, "$Tmp_prefix.stat");
1968 if ($Specific_dump_file ne '') {
1969 $dump = "2>> $Specific_dump_file";
1970 $Using_dump_file = 1;
1974 # Win32 only: If the command processor used by system()
1975 # exec()s the application as an ordinary Win32 executable,
1976 # we're in trouble here, since the command line is likely
1977 # to be > 255 chars long. To work around this situation,
1978 # $HsC also understands `at-files', i.e., `@file' on the
1979 # command line will cause $HsC to add the contents of `file'
1980 # to the command line.
1982 # [ Note: support for `at-files' is not compiled in by default ]
1983 $cmd_line_opts_via_at_file=0;
1984 if ($cmd_line_opts_via_at_file) {
1986 local($to_do_opts) = "$Tmp_prefix.opts";
1987 open(OPTS, "> $Tmp_prefix.opts") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.opts\n");
1988 print OPTS "$dump @HsC_flags $CoreLint $StgLint $Verbose";
1990 $to_do = "$HsC @HsP_flags ,$hscpp_hsc \@$Tmp_prefix.opts $output +RTS @HsC_rts_flags";
1994 $to_do = "$HsC @HsP_flags ,$hscpp_hsc $dump @HsC_flags $CoreLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
1996 &run_something($to_do, 'Haskell compiler');
1998 # finish business w/ nofibbish time/bytes-alloc stats
1999 &process_ghc_timings() if $CollectGhcTimings;
2003 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
2004 of (module-name, pathname) pairs, one per line, separated by a space.
2007 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
2011 # collect in %HiMap; write later; also used elsewhere in driver
2013 local($mod, $path, $d, $e);
2015 # reset the global variables:
2017 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
2019 foreach $d ( @Import_dir ) {
2020 if ($HiIncludeString) {
2021 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix}";
2023 $HiIncludeString = "$d%.${HiSuffix}";
2028 foreach $d ( @SysImport_dir ) {
2029 if ($HiIncludeString) {
2030 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix_prelude}";
2032 $HiIncludeString = "${d}%.${HiSuffix_prelude}";
2041 %************************************************************************
2043 \section[Driver-misc-utils]{Miscellaneous utilities}
2045 %************************************************************************
2047 %************************************************************************
2049 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
2051 %************************************************************************
2055 local($ofile,$def_suffix) = @_;
2057 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
2061 local($orig_file, $def_suffix) = @_;
2062 if ($Specific_output_dir eq '') { # do nothing
2063 &osuf_ify($orig_file, $def_suffix);
2065 local ($orig_file_only);
2066 ($orig_file_only = $orig_file) =~ s|.*/||;
2067 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
2074 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
2076 local($includes) = '-I' . join(' -I', @Include_dir);
2079 local($c_flags) = "@CcBoth_flags";
2080 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2082 # "input" files to use that are not in some weird directory;
2083 # to help C compilers grok .hc files [ToDo: de-hackify]
2084 local($cc_help) = "ghc$$.c";
2085 local($cc_help_s) = "ghc$$.s";
2088 $s_output = (($is_hc_file && $DoAsmMangling) || $TargetPlatform =~ /^(powerpc|rs6000|hppa)/) ? $cc_as_o : $cc_as;
2089 $c_flags .= " @CcRegd_flags";
2090 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2092 # C compiler won't like the .hc extension. So we create
2093 # a tmp .c file which #include's the needful.
2094 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2095 if ( $is_hc_file ) {
2099 # user may have asked for #includes to be injected...
2100 print TMP @CcInjects if $#CcInjects >= 0;
2102 # Straight .c files may want to know that they're being used
2103 # with a particular version of GHC, so we define __GLASGOW_HASKELL__ for their benefit.
2104 print TMP "#define __GLASGOW_HASKELL__ ${ProjectVersionInt}\n";
2106 # heave in the consistency info
2107 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2109 print TMP "#include \"$hsc_out\"\n";
2110 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2112 # Don't redirect stderr into intermediate file if slamming output onto stdout (e.g., with -E)
2113 local($fuse_stderr) = "2>&1" if ! $Only_preprocess_hc;
2114 local($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 )";
2116 if ( $Only_preprocess_hc ) { # HACK ALERT!
2117 $to_do =~ s/ -S\b//g;
2119 push(@Files_to_tidy, $cc_help, $cc_help_s, $s_output );
2120 $PostprocessCcOutput = 1 if ! $Only_preprocess_hc; # hack, dear hack...
2121 &run_something($to_do, 'C compiler');
2122 $PostprocessCcOutput = 0;
2123 if ( $Only_preprocess_hc ) {
2124 system("$Cat $Tmp_prefix.ccout");
2126 unlink($cc_help, $cc_help_s);
2132 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2134 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2136 if ($is_hc_file && $DoAsmMangling) {
2137 # dynamically load assembler-fiddling code, which we are about to use:
2138 require('ghc-asm.prl')
2139 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2140 # post-process the assembler [.hc files only]
2141 &mangle_asm($cc_as_o, $cc_as);
2143 } elsif ($TargetPlatform =~ /^hppa/) {
2144 # minor mangling of non-threaded files for hp-pa only
2145 require('ghc-asm.prl')
2146 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2147 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2149 } elsif ($TargetPlatform =~ /^powerpc|^rs6000/) {
2150 # minor mangling of non-threaded files for powerpcs and rs6000s
2151 require('ghc-asm.prl')
2152 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-powerpc.prl!\n");
2153 &mini_mangle_asm_powerpc($cc_as_o, $cc_as);
2156 # save a copy of the .s file, even if we are carrying on...
2157 #if ($do_as && $Keep_s_file_too) {
2158 # &saveIntermediate($ifile_root , "s" , $cc_as);
2165 local($as_out, $ifile_root) = @_;
2167 local($asmblr) = ( $As ) ? $As : $CcRegd;
2169 # need to add the -I flags in case the file is going through cpp (.S files)
2170 local($includes) = '-I' . join(' -I', @Include_dir);
2172 if ( ! $SplitObjFiles ) {
2173 local($to_do) = "$asmblr -o $as_out -c @As_flags $includes $cc_as";
2174 push(@Files_to_tidy, $as_out );
2175 &run_something($to_do, 'Unix assembler');
2177 } else { # more complicated split-ification...
2179 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2181 # If -odir is used, great, just pin it in front of the
2182 # generated split file names. If it hasn't been set, we
2183 # snatch it from the ifile_root.
2187 if ( $Specific_output_dir eq '' ) {
2188 $Specific_output_dir = ${ifile_root};
2191 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2192 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2193 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2194 push(@Files_to_tidy, $split_out );
2196 &run_something($to_do, 'Unix assembler');
2202 %************************************************************************
2204 \subsection[Driver-run-something]{@run_something@: Run a phase}
2206 %************************************************************************
2210 local($str_to_do, $tidy_name) = @_;
2212 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2213 print STDERR "$str_to_do\n" if $Verbose;
2215 if ($Using_dump_file) {
2216 open(DUMP, ">> $Specific_dump_file")
2217 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2218 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2220 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2223 local($return_val) = 0;
2225 if ( length($str_to_do) > 4000) {
2226 # 4000 - on the random side, just like the *real* ARG_MAX
2229 # With some shells, command lines of this length may
2230 # very well cause trouble. To safeguard against this, we squirrel the
2231 # command into a file and exec that.
2232 local ($sh) = $ENV{'REAL_SHELL'};
2233 print STDERR "Backup plan A: saving cmd line in ${Tmp_prefix}.sh and executing that with $sh\n" if $Verbose;
2234 open (TEMP, "> ${Tmp_prefix}.sh") ||
2235 &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.sh'\n");
2236 print TEMP "$Time $str_to_do\n";
2238 &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.sh'\n");
2239 system("$sh $Tmp_prefix.sh");
2242 unlink "${Tmp_prefix}.sh";
2244 system("$Time $str_to_do");
2248 if ( $PostprocessCcOutput ) { # hack, continued
2249 open(CCOUT, "< $Tmp_prefix.ccout")
2250 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2252 next if /call-clobbered/;
2253 next if /control reaches end/;
2254 next if /from .*Stg\.h:/;
2255 next if /from ghc\d+.c:\d+:/;
2256 next if /: At top level:$/;
2257 next if /: In function \`.*\':$/;
2258 next if /\`ghc_cc_ID\' defined but not used/;
2261 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2264 if ($return_val != 0) {
2265 if ($Using_dump_file) {
2266 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2268 &tidy_up_and_die($return_val, '');
2270 $Using_dump_file = 0;
2274 %************************************************************************
2276 \subsection[Driver-ghc-timing]{Emit nofibbish GHC timings}
2278 %************************************************************************
2280 NB: nearly the same as in @runstdtest@ script.
2283 sub process_ghc_timings {
2284 local($StatsFile) = "$Tmp_prefix.stat";
2285 local($SysSpecificTiming) = 'ghc';
2287 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2288 local($max_live) = 0;
2289 local($tot_live) = 0; # for calculating residency stuff
2290 local($tot_samples) = 0;
2293 if (! /Gen:\s+0/ && ! /Minor/ && /^\s*\d+\s+\d+\s+(\d+)\s+\d+\.\d+/ ) {
2294 $max_live = $1 if $max_live < $1;
2298 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2300 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2301 $MaxResidency = $1; $ResidencySamples = $2;
2304 $GCs = $1 if /^\s*([0-9,]+) (collections? in generation 0|garbage collections? performed)/;
2306 if ( /^\s+([0-9]+)\s+Mb total memory/ ) {
2310 # The presence of -? in the following pattern is only there to
2311 # accommodate 0.29 && <= 2.05 RTS'
2312 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*-?(\d+\.\d\d)s elapsed\)/ ) {
2313 $InitTime = $1; $InitElapsed = $2;
2314 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2315 $MutTime = $1; $MutElapsed = $2;
2316 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2317 $GcTime = $1; $GcElapsed = $2;
2320 close(STATS) || die "Failed when closing $StatsFile\n";
2321 if ( $tot_samples > 0 ) {
2322 $ResidencySamples = $tot_samples;
2323 $MaxResidency = $max_live;
2324 $AvgResidency = int ($tot_live / $tot_samples) ;
2327 # warn about what we didn't find
2328 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2329 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2330 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2331 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2332 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2333 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2334 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2335 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2337 # things we didn't necessarily expect to find
2338 $MaxResidency = 0 unless defined($MaxResidency);
2339 $AvgResidency = 0 unless defined($AvgResidency);
2340 $ResidencySamples = 0 unless defined($ResidencySamples);
2343 $BytesAlloc =~ s/,//g;
2344 $MaxResidency =~ s/,//g;
2346 $InitTime =~ s/,//g;
2347 $InitElapsed =~ s/,//g;
2349 $MutElapsed =~ s/,//g;
2351 $GcElapsed =~ s/,//g;
2353 # print out what we found
2354 print STDERR "<<$SysSpecificTiming: ",
2355 "$BytesAlloc bytes, $GCs GCs, $AvgResidency/$MaxResidency avg/max bytes residency ($ResidencySamples samples), ${TotMem}M in use, $InitTime INIT ($InitElapsed elapsed), $MutTime MUT ($MutElapsed elapsed), $GcTime GC ($GcElapsed elapsed)",
2356 " :$SysSpecificTiming>>\n";
2363 %************************************************************************
2365 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2367 %************************************************************************
2371 local($to_do) = "\n$Rm $Tmp_prefix*";
2372 if ( $Tmp_prefix !~ /^\s*$/ ) {
2373 print STDERR "$to_do\n" if $Verbose;
2378 sub tidy_up_and_die {
2379 local($return_val, $msg) = @_;
2381 # delete any files to tidy
2382 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2383 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2387 exit (($return_val == 0) ? 0 : 1);
2391 %************************************************************************
2393 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2395 %************************************************************************
2397 Some command-line arguments take an argument, e.g.,
2398 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2399 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2400 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2402 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2403 gobble the second argument (and probably set the heapsize to something
2407 local(*Args, $option, $rest_of_arg) = @_;
2409 if ($rest_of_arg ne '') {
2410 return($rest_of_arg);
2411 } elsif ($#Args >= 0) {
2412 local($temp) = $Args[0]; shift(@Args);
2415 print STDERR "$Pgm: no argument following $option option\n";
2426 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2428 foreach $f ( @HsC_antiflags ) {
2429 return(0) if $flag eq $f;
2431 # foreach $f ( @HsC_flags ) {
2432 # return(0) if $flag eq $f;
2437 sub squashHscFlag { # pretty terrible
2441 foreach $f ( @HsC_flags ) {
2442 if ($flag eq $f) { $f = ''; }
2450 foreach $f ( @flags ) {
2451 push( @HsC_flags, $f ) if &isntAntiFlag($f);
2456 To add another system library, you'll need to augment the
2457 Supported_syslibs variable with name and info on your addition
2458 to the syslib family. The info bit consist of the following:
2460 - interface file directory
2461 see the misc or posix entry for how to distinguish
2462 between using installed and build tree directories.
2464 - directory location of archives
2466 - location of (way-independent) C support libs.
2467 not all libraries need this - if you don't, just
2468 give the empty string.
2469 - list of syslibs you depend on.
2471 - additional ghc command line flags that should be used.
2472 - additional C compiler command line flags that should be used.
2478 # Hash to keep track of
2479 %Syslibs_added = ();
2482 local($syslib) = @_;
2484 # Lifting this out of this sub brings it out of scope - why??
2485 %Supported_syslibs =
2487 [ # where to slurp interface files from
2489 ? "$InstLibDirGhc/imports/exts"
2490 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/exts"
2492 , # where to find the archive to use when linking
2495 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/exts"
2498 , '' # Syslib dependencies
2499 , '' # extra ghc opts
2500 , '' # extra cc opts
2501 , '' # extra ld opts
2505 [ # where to slurp interface files from
2507 ? "$InstLibDirGhc/imports/misc"
2508 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc"
2510 , # where to find the archive to use when linking
2513 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc"
2515 , # where to find the cbits archive to use when linking
2518 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc/cbits"
2520 , 'exts' # Syslib dependencies
2521 , '' # extra ghc opts
2522 , '' # extra cc opts
2523 , ( $TargetPlatform =~ /-solaris2$/ ? '-lnsl -lsocket' : '')
2526 [ # where to slurp interface files from
2528 ? "$InstLibDirGhc/imports/hbc"
2529 : "$TopPwd/CONTRIB/libraries/hbc/src"
2531 , # where to find the archive to use when linking
2534 : "$TopPwd/CONTRIB/libraries/src/hbc"
2536 , # where to find the cbits archive to use when linking
2539 : "$TopPwd/CONTRIB/libraries/hbc/cbits"
2541 , 'exts' # Syslib dependencies
2542 , '' # extra ghc opts
2543 , '' # extra cc opts
2547 [ # where to slurp interface files from
2549 ? "$InstLibDirGhc/imports/posix"
2550 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix"
2552 , # where to find the archive to use when linking
2555 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix"
2557 , # where to find the cbits archive to use when linking
2560 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix/cbits"
2562 , 'misc' # Syslib dependencies
2563 , '' # extra ghc opts
2564 , '' # extra cc opts
2565 , '' # extra ld opts
2568 [ # where to slurp interface files from
2570 ? "$InstLibDirGhc/imports/concurrent"
2571 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent"
2573 , # where to find the archive to use when linking
2576 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent"
2578 , '' # where to find the cbits archive to use when linking
2579 , '' # Syslib dependencies
2580 , '' # extra ghc opts
2581 , '' # extra cc opts
2582 , '' # extra ld opts
2585 [ # where to slurp interface files from
2587 ? "$InstLibDirGhc/imports/win32"
2588 : "$TopPwd/hslibs/win32/src"
2590 , # where to find the archive to use when linking
2593 : "$TopPwd/hslibs/win32/src"
2596 , 'exts' # Syslib dependencies
2597 , '' # extra ghc opts
2598 , '' # extra cc opts
2599 , '-luser32 -lgdi32' # extra ld opts
2603 # check if it's supported..
2605 if ( !exists $Supported_syslibs{$syslib} ) {
2606 print STDERR "$Pgm: no such system library (-syslib): $syslib\n";
2611 # This check is here to avoid syslib loops from
2612 # spoiling the party. A side-effect of it is that
2613 # it disallows multiple mentions of a syslib on a command-line,
2614 # explicit *and* implicit ones (i.e., "-syslib exts -syslib misc"
2615 # is not equal to "-syslib exts -syslib misc -syslib exts",
2616 # which it needs to be)
2618 # Since our current collection of syslibs don't have any
2619 # loops, this test is disabled.
2621 # ToDo: loop avoidance scheme when the need arises
2623 #return if ( exists $Syslibs_added{$syslib} );
2625 $Syslibs_added{$syslib} = 1;
2627 local ($hi_dir, $lib_dir, $lib_cbits_dir,
2628 $syslib_deps, $syslib_ghc_opts,
2629 $syslib_cc_opts, $syslib_ld_opts) = @{ $Supported_syslibs{$syslib} };
2632 unshift(@SysImport_dir, $hi_dir);
2633 push(@SysLibrary_dir, $lib_dir);
2634 push(@SysLibrary_dir, $lib_cbits_dir) if ( $lib_cbits_dir ne '');
2636 push(@SysLibrary, "-lHS$syslib");
2637 push(@SysLibrary, "-lHS${syslib}_cbits") if ( $lib_cbits_dir ne '');
2638 push(@SysLibrary, $syslib_ld_opts) if ($syslib_ld_opts ne '');
2640 # Add on any extra dependencies.
2641 foreach $lib (split(' ',$syslib_deps)) {
2647 Source files may have {-# OPTIONS ... #-} pragmas at the top, containing
2648 command line options we want to append to collection of commands specified
2649 directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell
2650 file for any such pragmas:
2653 sub check_for_source_options {
2654 local($file,$ifile) = @_;
2655 local($comment_start,$comment_end);
2657 if ($ifile =~ /\.hc$/ ||
2660 $ifile =~ /_s$/ ) { # `Real' C intermediate
2661 $comment_start = "/\\*";
2662 $comment_end = "\\*/";
2663 } else { # Assume it is a file containing Haskell source
2664 $comment_start = "{-#";
2665 $comment_end = "#-}";
2668 open(FILE,$file) || return(1); # No big loss
2671 if ( /^${comment_start} OPTIONS (.*)${comment_end}$/ ) {
2672 # add the options found at the back of the command line.
2673 local(@entries) = split(/\s+/,$1);
2674 print STDERR "Found OPTIONS " . join(' ',@entries) . " in $file\n" if $Verbose;
2675 push(@File_options, @entries);
2677 elsif ( /^$/ ) { # ignore empty lines
2680 elsif ( /^#line.+$/ ) { # ignore comment lines (unused..ToDo: rm )
2683 elsif ( /^{-# LINE.+$/ ) { # ignore line pragmas
2686 else { # stop looking, something non-empty / not
2687 # ${comment_start} OPTIONS .. ${comment_end} encountered.
2688 close(FILE);return(0);
2697 We split the initial argv up into three arrays:
2703 the reason for doing so is to be able to deal
2704 with {-# OPTIONS #-} pragma in source files properly.
2710 arg: while($_ = $args[0]) {
2712 # sigh, we have to deal with these -option arg specially here.
2713 /^-(tmpdir|odir|ohi|o|isuf|osuf|hisuf|odump|syslib)$/ &&
2714 do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; };
2715 /^--?./ && do { push(@Cmd_opts, $_); next arg; };
2717 if (/\.([^_]+_)?[oa]$/) {
2718 push(@Link_file, $_);
2720 push(@Input_file, $_);
2723 # input files must exist:
2725 print STDERR "$Pgm: input file doesn't exist: $_\n";
2733 When saving an intermediate file (.hc or .s) away, we
2734 have to prefix any OPTIONS found in the original source file.
2737 sub saveIntermediate {
2738 local ($final,$suffix,$tmp)= @_ ;
2741 # $final -- root of where to park ${final}.${suffix}
2742 # $tmp -- temporary file where hsc put the intermediate file.
2744 # Delete the old file
2745 $to_do = "$Rm ${final}.${suffix}"; &run_something($to_do, "Removing old .${suffix} file");
2747 if ( $#File_options >= 0 ) { # OPTIONS found in Haskell source unit
2748 # Add OPTION comment to the top of the generated .${suffix} file
2749 open(TEMP, "> ${final}.${suffix}") || &tidy_up_and_die(1,"Can't open ${final}.${suffix}\n");
2750 print TEMP "/* OPTIONS " . join(' ',@File_options) . " */\n";
2752 print STDERR "Prepending OPTIONS: " . join(' ',@File_options) . " to ${final}.${suffix}\n" if $Verbose;
2754 $to_do = "$Cat $tmp >> ${final}.${suffix}";
2755 &run_something($to_do, "Saving copy of .${suffix} file");
2762 Command-line processor
2768 # can't use getopt(s); what we want is too complicated
2770 arg: while($_ = $Args[0]) {
2773 #---------- help -------------------------------------------------------
2774 if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; }
2776 #-----------version ----------------------------------------------------
2777 /^--version$/ && do { print STDERR "${ProjectName}, version ${ProjectVersion}, patchlevel ${ProjectPatchLevel}\n"; exit $Status; };
2779 #---------- verbosity and such -----------------------------------------
2780 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
2782 #---------- what phases are to be run ----------------------------------
2783 /^-(no-)?recomp/ && do { $Do_recomp_chkr = ($1 eq '') ? 1 : 0; next arg; };
2785 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
2786 # change the global default:
2787 # we won't run cat; we'll run the real thing
2789 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
2791 # stop after generating C
2793 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
2794 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
2796 # leave out actual C generation (debugging) [also turns off interface gen]
2799 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
2800 # _do_ generate an interface; usually used as: -noC -hi
2801 /^-hi-with-(.*)$/ && do { $HiOnStdout = 1; $HiWith .= " $1" ; $ProduceHi = '-hifile='; next arg; };
2802 # limit ourselves to outputting a particular section.
2804 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
2805 # don't generate an interface (even if generating C)
2807 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
2808 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
2809 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
2810 /^-keep-hi-diffs$/ && do { $Keep_HiDiffs = 1; next arg; };
2812 # show/disable diffs if the interface file changes
2814 /^-E$/ && do { push(@CcBoth_flags, '-E');
2815 $Only_preprocess_C = 1;
2816 $Do_as = 0; $Do_lnkr = 0; next arg; };
2817 # stop after preprocessing C
2818 /^-M$/ && do { $Only_generate_deps = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2819 # only generate dependency information.
2820 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
2821 # stop after generating assembler
2823 /^-c$/ && do { $Do_lnkr = 0; next arg; };
2824 # stop after generating .o files
2826 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
2827 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
2828 # don't do consistency-checking after a link
2830 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', '');
2831 $Tmp_prefix = "$Tmp_prefix/ghc$$";
2832 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
2834 # use an alternate directory for temp files
2836 #---------- redirect output --------------------------------------------
2838 # -o <file>; applies to the last phase, whatever it is
2839 # "-o -" sends it to stdout
2840 # if <file> has a directory component, that dir must already exist
2842 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', '');
2844 # Hack, of the worst sort: don't do validation of
2845 # odir argument if you're using -M (dependency generation).
2847 if ( ! $Only_generate_deps && ! -d $Specific_output_dir) {
2848 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
2853 /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', '');
2854 if ($Specific_output_file ne '-'
2855 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
2856 local($dir_part) = $1;
2857 if (! -d $dir_part) {
2858 print STDERR "$Pgm: no such directory: $dir_part\n";
2864 # NB: -isuf not documented yet (because it doesn't work yet)
2865 /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', '');
2866 if ($Isuffix =~ /\./ ) {
2867 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
2872 /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', '');
2873 if ($Osuffix =~ /\./ ) {
2874 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
2879 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
2880 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', '');
2881 if ($Specific_hi_file ne '-'
2882 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
2883 local($dir_part) = $1;
2884 if (! -d $dir_part) {
2885 print STDERR "$Pgm: no such directory: $dir_part\n";
2891 # The suffix to use when looking for interface files
2892 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', '');
2893 if ($HiSuffix =~ /\./ ) {
2894 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
2898 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', '');
2899 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
2900 local($dir_part) = $1;
2901 if (! -d $dir_part) {
2902 print STDERR "$Pgm: no such directory: $dir_part\n";
2908 #-------------- scc & Profiling Stuff ----------------------------------
2910 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
2913 # generate auto SCCs on top level bindings
2914 # -auto-all = all top level bindings
2915 # -auto = only top level exported bindings
2916 $PROFauto = ( /-all/ )
2917 ? '-fauto-sccs-on-all-toplevs'
2918 : '-fauto-sccs-on-exported-toplevs';
2921 /^-caf-all/ && do { # generate individual CAF SCC annotations
2922 $PROFcaf = '-fauto-sccs-on-individual-cafs';
2925 /^-ignore-scc$/ && do {
2926 # forces ignore of scc annotations even if profiling
2927 $PROFignore_scc = '-W';
2930 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
2933 /^-unprof-scc-auto/ && do {
2934 # generate auto SCCs on top level bindings when not profiling.
2935 # Used to measure optimisation effects of presence of sccs.
2936 $UNPROFscc_auto = ( /-all/ )
2937 ? '-fauto-sccs-on-all-toplevs'
2938 : '-fauto-sccs-on-exported-toplevs';
2941 #--------- ticky/parallel ----------------------------------------------
2942 # we sort out the details a bit later on
2944 /^-gransim$/ && do { $GRANing = 'g'; &add_syslib('concurrent'); next arg; }; # GranSim
2945 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
2946 /^-parallel$/ && do { $PARing = 'p'; &add_syslib('concurrent'); next arg; }; # parallel Haskell
2948 #-------------- "user ways" --------------------------------------------
2950 (/^-user-setup-([a-oA-Z])$/ ) &&
2952 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
2954 local($stuff) = $UserSetupOpts{$BuildTag};
2955 local(@opts) = split(/\s+/, $stuff);
2957 # feed relevant ops into the arg-processing loop (if any)
2958 unshift(@Args, @opts) if $#opts >= 0;
2962 #---------- set search paths for libraries and things ------------------
2964 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
2965 # prepends the items to the list); -I is for including C .h files.
2967 /^-i$/ && do { @Import_dir = (); # import path cleared!
2968 @SysImport_dir = ();
2969 print STDERR "WARNING: import paths cleared by `-i'\n";
2972 /^-i(.*)/ && do { local(@new_items)
2973 = split( /:/, &grab_arg_arg(*Args,'-i', $1));
2974 unshift(@Import_dir, @new_items);
2977 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; };
2978 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; };
2979 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; };
2981 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1);
2982 &add_syslib($syslib);
2985 #=======================================================================
2986 # various flags that we can harmlessly send to one program or another
2987 # (we will later "reclaim" some of the compiler ones now sent to gcc)
2988 #=======================================================================
2990 #---------- this driver itself (ghc) -----------------------------------
2991 # these change what executable is run for each phase:
2992 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
2993 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
2994 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
2995 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
2996 /^-pgma(.*)$/ && do { $As = $1; next arg; };
2997 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
2998 /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; };
3000 #---------- the get-anything-through opts (all pgms) -------------------
3001 # these allow arbitrary option-strings to go to any phase:
3002 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
3003 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
3004 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
3005 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
3006 /^-optp(.*)$/ && do { push(@HsP_flags, $1); next arg; };
3007 /^-optcpp(.*)$/ && do { push(@Cpp_define, $1); $Only_preprocess_hc = ($1 eq "-E"); next arg; };
3008 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
3009 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
3010 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
3011 /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; };
3013 #---------- Haskell C pre-processor (hscpp) ----------------------------
3014 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; };
3015 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; };
3017 #---------- post-Haskell "assembler"------------------------------------
3018 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
3019 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
3021 #---------- Haskell compiler (hsc) -------------------------------------
3023 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
3024 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
3026 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
3028 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
3031 # have the compiler proper generate concurrent code,
3032 # really only used when you want to configure your own
3033 # special user compilation way.
3035 # (ditto for -fgransim, fscc-profiling, -fparallel and -fticky-ticky)
3037 /^-fscc-profiling$/ && do { push(@HsC_flags,$_); next arg; };
3038 /^-fticky-ticky$/ && do { push(@HsC_flags,$_); next arg; };
3039 /^-fgransim$/ && do { push(@HsC_flags,$_); next arg; };
3040 /^-fparallel$/ && do { push(@HsC_flags,$_); next arg; };
3042 /^-split-objs$/ && do {
3043 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|rs6000|sparc)-/ ) {
3045 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
3050 push(@HsC_flags, "-fglobalise-toplev-names");
3051 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
3053 require('ghc-split.prl')
3054 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
3058 /^-fno-asm-mangling$/ && do { $DoAsmMangling = 0; next arg; };
3060 /^-fallow-overlapping-instances$/ && do { push(@HsC_flags, $_); next arg; };
3061 /^-fallow-undecidable-instances$/ && do { push(@HsC_flags, $_); next arg; };
3063 && do { push(@HsC_flags, $_);
3064 push(@HsP_flags, '-N');
3066 # -fglasgow-exts implies -syslib exts
3067 &add_syslib('exts');
3072 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
3073 /^-fno-speciali[sz]e$/
3074 && do { $Oopt_DoSpecialise = ''; next arg; };
3077 # Now the foldr/build options, which are *on* by default (for -O).
3080 && do { $Oopt_FoldrBuild = 1;
3081 $Oopt_FB_Support = '-fdo-arity-expand';
3085 /^-fno-foldr-build$/
3086 && do { $Oopt_FoldrBuild = 0;
3087 $Oopt_FB_Support = '';
3090 /^-fno-foldr-build-rule$/
3091 && do { $Oopt_FoldrBuild = 0;
3094 /^-fno-enable-tech$/
3095 && do { $Oopt_FB_Support = '';
3098 /^-fno-snapback-to-append$/
3099 && do { $Oopt_FoldrBuildInline .= ' -fdo-not-fold-back-append ';
3102 # --------------- Renamer -------------
3105 /^-fno-prune-tydecls$/ && do { push(@HsC_flags, $_); next arg; };
3106 /^-fno-prune-instdecls$/ && do { push(@HsC_flags, $_); next arg; };
3110 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
3111 /^-fvia-[cC]$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
3116 && do { push(@HsC_flags, $_); next arg };
3118 /^-funfold-casms-in-hi-file$/
3119 && do { push(@HsC_flags, $_); next arg };
3121 /^(-fmax-simplifier-iterations)(.*)$/
3122 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2);
3125 /^-fno-pedantic-bottoms$/
3126 && do { $Oopt_PedanticBottoms = ''; next arg; };
3128 /^-fno-pre-inlining$/
3129 && do { push(@HsC_flags, $_); next arg };
3131 /^-fdo-monad-eta-expansion$/
3132 && do { $Oopt_MonadEtaExpansion = $_; next arg; };
3134 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
3135 && do { push(@HsC_flags, $_); next arg; };
3137 # --------------- Warnings etc. ------
3139 /^-fwarn-(.*)$/ && do { push(@HsC_flags, $_); next arg; };
3141 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
3142 &squashHscFlag("-f$1");
3145 /^-W$/ && do { push(@HsC_flags, @MinusWOpts); next arg; };
3146 /^-Wall$/ && do { push(@HsC_flags, @MinusWallOpts); next arg; };
3147 /^(-Wnot|w)$/ && do { foreach (@Hsc_flags) {
3148 /^-fwarn-(.*)$/ && do { $_=''; };
3150 push(@HsC_antiflags, @StandardWarnings);
3153 # --------------- fun stuff ----------------
3155 /^-freport-compile$/ && do { push(@HsC_flags, $_); next arg; };
3157 # --------------- platform specific flags (for gcc mostly) ----------------
3159 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes,
3160 # for 2.6.x..?, does not apply for 2.7.2
3162 unshift(@CcBoth_flags, ( $_ ));
3165 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
3166 && do { # for GCC for SPARCs
3167 unshift(@CcBoth_flags, ( $_ ));
3170 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
3171 $StolenX86Regs = $1;
3174 #*************** ... and lots of debugging ones (form: -d* )
3176 # -d(no-)core-lint is done this way so it is turn-off-able.
3177 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
3178 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
3179 # Ditto for STG lint
3180 /^-dstg-lint/ && do { $StgLint = '-dstg-lint'; next arg; };
3181 /^-dno-stg-lint/ && do { $StgLint = ''; next arg; };
3183 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
3184 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
3185 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
3186 /^-dshow-rn-stats/ && do { push(@HsC_flags, $_); next arg; };
3187 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
3188 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
3189 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
3190 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
3192 #*************** ... and now all these -R* ones for its runtime system...
3194 /^-Rscale-sizes?(.*)/ && do {
3195 $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1);
3198 /^(-H|-Rmax-heapsize)(.*)/ && do {
3199 local($heap_size) = &grab_arg_arg(*Args,$1, $2);
3200 if ($heap_size =~ /(\d+)[Kk]$/) {
3201 $heap_size = $1 * 1000;
3202 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
3203 $heap_size = $1 * 1000 * 1000;
3204 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
3205 $heap_size = $1 * 1000 * 1000 * 1000;
3207 if ($heap_size <= 0) {
3208 print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n";
3209 $Specific_heap_size = 0;
3211 # if several heap sizes given, take the largest...
3212 } elsif ($heap_size >= $Specific_heap_size) {
3213 $Specific_heap_size = $heap_size;
3215 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n";
3219 /^(-K|Rmax-(stk|stack)size)(.*)/ && do {
3221 local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3);
3222 if ($stk_size =~ /(\d+)[Kk]$/) {
3223 $stk_size = $1 * 1000;
3224 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
3225 $stk_size = $1 * 1000 * 1000;
3226 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
3227 $stk_size = $1 * 1000 * 1000 * 1000;
3229 if ($stk_size <= 0) {
3230 print STDERR "$Pgm: resetting stack-size to zero!!! $stk_size\n";
3231 $Specific_stk_size = 0;
3233 # if several stack sizes given, take the largest...
3234 } elsif ($stk_size >= $Specific_stk_size) {
3235 $Specific_stk_size = $stk_size;
3237 print STDERR "$Pgm: ignoring stack-size-setting option ($flag $stk_size)...not the largest seen\n";
3241 /^-Rgc-stats$/ && do { $CollectingGCstats++;
3242 # the two RTSs do this diff ways; we will try to compensate
3245 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
3247 #---------- C high-level assembler (gcc) -------------------------------
3248 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
3250 # -dgcc-lint is a useful way of making GCC very fussy.
3251 # From alan@spri.levels.unisa.edu.au (Alan Modra).
3252 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
3253 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
3254 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
3256 # inject "#include <wurble>" into the compiler's C output!
3258 /^-#include(.*)/ && do {
3259 local($to_include) = &grab_arg_arg(*Args,'-#include', $1);
3260 push(@CcInjects, "#include $to_include\n");
3263 #---------- Linker (gcc, really) ---------------------------------------
3265 /^-static$/ && do { push(@HsC_flags, $_); push(@Ld_flags, $_); next arg; };
3266 /^-no-hs-main$/ && do { $NoHaskellMain=1; next arg; };
3268 #---------- mixed cc and linker magic ----------------------------------
3269 # this optimisation stuff is finally sorted out later on...
3271 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
3273 /^-O[1-2]?$/ && do {
3274 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
3275 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
3277 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
3280 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
3282 /^-Ofile(.*)/ && do {
3284 local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1);
3285 @HsC_minusO3_flags = ();
3287 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
3290 s/\#.*//; # death to comments
3291 s/[ \t]+//g; # death to whitespace
3292 next if /^$/; # ditto, blank lines
3293 s/([()*{}])/\\$1/g; # protect shell metacharacters
3295 push(@CcBoth_flags, $1);
3297 push(@HsC_minusO3_flags, $_);
3303 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
3304 # in the consistency info
3308 #---------- linking .a file --------------------------------------------
3310 /^-Main(.*)/ && do {
3311 # specifies main or mainPrimIO to be linked
3315 #---------- catch unrecognized flags -----------------------------------
3318 print STDERR "$Pgm: unrecognised option: $_\n";
3324 } # end of processArgs