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
763 '-fmax-simplifier-iterations1',
764 $Oopt_PedanticBottoms,
767 ($Oopt_DoSpecialise) ? (
771 '-fsimplify', # need dependency anal after specialiser ...
772 '[', # need tossing before calc-inlinings ...
774 '-ffloat-lets-exposing-whnf',
775 '-ffloat-primops-ok',
779 # '-fdo-eta-reduction',
780 '-fdo-lambda-eta-expansion',
782 $Oopt_PedanticBottoms,
783 $Oopt_MonadEtaExpansion,
784 $Oopt_MaxSimplifierIterations,
785 $Oopt_ShowSimplifierProgress,
787 # The presence of -fclone-binds is *crucial* here as
788 # -ffull-laziness (which we're about to do next) floats
789 # bindings outwards, so we better make sure that this
790 # doesn't result in the floating out of bindings
791 # with identical uniques, i.e., -ffull-laziness needs
792 # to be preceeded by a simplifier pass with -fclone-binds
797 # ($Oopt_FoldrBuildWW) ? (
798 # '-ffoldr-build-ww-anal',
799 # '-ffoldr-build-worker-wrapper',
803 # '-ffloat-lets-exposing-whnf',
804 # '-ffloat-primops-ok',
808 # '-fdo-eta-reduction',
809 # '-fdo-lambda-eta-expansion',
811 # $Oopt_PedanticBottoms,
812 # $Oopt_MonadEtaExpansion,
813 # $Oopt_MaxSimplifierIterations,
814 # $Oopt_ShowSimplifierProgress,
818 # this pass-ordering sequence was agreed by Simon and Andr\'e
819 # (WDP 94/07, 94/11).
822 ($Oopt_FoldrBuild) ? (
823 '-ffoldr-build-on', # desugar list comprehensions for foldr/build
827 '-fignore-inline-pragma', # **** NB!
828 '-fdo-foldr-build', # NB
830 '-ffloat-lets-exposing-whnf',
831 '-ffloat-primops-ok',
835 # '-fdo-eta-reduction',
836 '-fdo-lambda-eta-expansion', # After full laziness
838 $Oopt_PedanticBottoms,
839 $Oopt_MonadEtaExpansion,
840 $Oopt_MaxSimplifierIterations,
841 $Oopt_ShowSimplifierProgress,
850 '-ffloat-lets-exposing-whnf',
851 '-ffloat-primops-ok',
855 '-fdo-eta-reduction',
856 '-fdo-lambda-eta-expansion',
858 ($Oopt_FoldrBuildInline),
859 # you need to inline foldr and build
860 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
861 # but do reductions if you see them!
862 $Oopt_PedanticBottoms,
863 $Oopt_MonadEtaExpansion,
864 $Oopt_MaxSimplifierIterations,
865 $Oopt_ShowSimplifierProgress,
873 '-ffloat-lets-exposing-whnf',
874 '-ffloat-primops-ok',
878 # '-fdo-eta-reduction',
879 '-fdo-lambda-eta-expansion',
881 '-flet-to-case', # Aha! Only done after strictness analysis
882 $Oopt_PedanticBottoms,
883 $Oopt_MonadEtaExpansion,
884 $Oopt_MaxSimplifierIterations,
885 $Oopt_ShowSimplifierProgress,
890 # Case-liberation for -O2. This should be after
891 # strictness analysis and the simplification which follows it.
895 # : "-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 ]" ),
897 # Final clean-up simplification:
902 '-ffloat-lets-exposing-whnf',
903 '-ffloat-primops-ok',
907 # '-fdo-eta-reduction',
908 '-fdo-lambda-eta-expansion',
911 '-fignore-inline-pragma', # **** NB!
912 $Oopt_FoldrBuildInline,
913 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
914 # but still do reductions if you see them!
915 $Oopt_PedanticBottoms,
916 $Oopt_MonadEtaExpansion,
917 $Oopt_MaxSimplifierIterations,
918 $Oopt_ShowSimplifierProgress,
923 #LATER: '-fcalc-inlinings2', -- pointless for 2.01
927 $Oopt_FinalStgProfilingMassage,
933 # SPECIAL FLAGS for -O2
935 '-fupdate-analysis', # virtually useless; relegated to -O2
942 Sort out what we're going to do about optimising. First, the @hsc@
943 flags and regular @cc@ flags to worry about:
945 if ( $OptLevel <= 0 ) {
947 # for this level, we tell the parser -fignore-interface-pragmas
948 push(@HsC_flags, '-fignore-interface-pragmas');
949 # and tell the compiler not to produce them
950 push(@HsC_flags, '-fomit-interface-pragmas');
952 &add_Hsc_flags( @HsC_minusNoO_flags );
953 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
955 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
957 &add_Hsc_flags( @HsC_minusO_flags );
958 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
959 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
960 # but it *is* useful in compiling the garbage collector.
962 } else { # -Ofile, then...
964 &add_Hsc_flags( @HsC_minusO3_flags );
965 push(@HsC_flags, $Oopt_FinalStgProfilingMassage) if $Oopt_FinalStgProfilingMassage;
967 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
970 } # setupOptimiseFlags
974 %************************************************************************
976 \subsection{Check for consistency, etc.}
978 %************************************************************************
980 Sort out @$BuildTag@, @$PROFing@, @$PARing@,
981 @$GRANing@, @$TICKYing@:
983 sub setupBuildFlags {
986 # PROFILING stuff after argv mangling:
988 # warn about any scc exprs found (in case scc used as identifier)
989 push(@HsP_flags, '-W');
991 # add -auto sccs even if not profiling !
992 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
995 push(@HsC_flags, $PROFauto) if $PROFauto;
996 push(@HsC_flags, $PROFcaf) if $PROFcaf;
997 #push(@HsC_flags, $PROFdict) if $PROFdict;
999 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
1001 # Ignore user sccs when auto annotating, but warn when doing so.
1002 $PROFignore_scc = '-W' if $PROFauto;
1004 push(@HsP_flags, (($PROFignore_scc) ? $PROFignore_scc : '-S'));
1006 #if ( $BuildTag ne '' ) {
1007 # local($b) = $BuildDescr{$BuildTag};
1008 # if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
1009 # if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
1010 # if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
1012 # # ok to have a user-way profiling build
1013 # # eval the profiling opts ... but leave user-way BuildTag
1014 # if ($PROFing eq 'p') { &processArgs(split(' ', $SetupOpts{'_p'})); } # eval($EvaldSetupOpts{'_p'}); }
1016 if ( $PROFing eq 'p' ) {
1017 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
1018 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
1019 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
1022 } elsif ( $PARing eq 'p' ) {
1023 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
1024 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
1027 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
1028 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
1032 } elsif ( $GRANing eq 'g' ) {
1033 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
1036 } elsif ( $TICKYing eq 't' ) {
1042 After the sanity checks, add flags to the necessary parts of the driver pipeline:
1045 if ( $BuildTag ne '' ) { # something other than normal sequential...
1047 local($Tag) = "${BuildTag}";
1048 $Tag =~ s/_//; # move the underscore to the back
1050 $HscOut = '-C='; # must go via C
1051 &processArgs(split(' ', $SetupOpts{$BuildTag}));
1052 # eval($EvaldSetupOpts{$BuildTag});
1056 Decide what the consistency-checking options are in force for this run:
1059 $HsC_consist_options = "${BuildTag},${DEBUGging}";
1060 $Cc_consist_options = "${BuildTag},${DEBUGging}";
1063 # Funny place to put it, but why not.
1065 if ( $HiSuffix_prelude eq '' ) {
1066 local($Tag) = "${BuildTag}";
1068 $Tag = "${Tag}_" if $Tag ne '';
1069 $HiSuffix_prelude="${Tag}hi";
1074 %************************************************************************
1076 \subsection{Add on machine-specific C-compiler flags}
1078 %************************************************************************
1080 Shove on magical machine-specific options. We use \tr{unshift} to
1081 stick them on the {\em front} of the arrays, so that ``later''
1082 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
1084 Note: a few ``always apply'' flags were set at the very beginning.
1089 if ($TargetPlatform =~ /^alpha-/) {
1090 unshift(@CcBoth_flags, ('-static'));
1092 } elsif ($TargetPlatform =~ /^hppa/) {
1093 unshift(@CcBoth_flags, ('-static'));
1095 # We don't put in '-mlong-calls', because it's only
1096 # needed for very big modules (sigh), and we don't want
1097 # to hobble ourselves further on all the other modules
1100 # [Dated comment (gcc-2.6.x?), -mlong-calls is no longer
1101 # a supported gcc HPPA flag]
1102 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
1103 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
1104 # (very nice, but too bad the HP /usr/include files don't agree.)
1106 } elsif ($TargetPlatform =~ /^i386-/) {
1107 # -fno-defer-pop : basically the same game as for m68k
1109 # -fomit-frame-pointer : *must* in .hc files; because we're stealing
1110 # the fp (%ebp) for our register maps.
1112 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1113 unshift(@CcRegd_flags_hc, '-fomit-frame-pointer');
1114 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1116 } elsif ($TargetPlatform =~ /^m68k-/) {
1117 # -fno-defer-pop : for the .hc files, we want all the pushing/
1118 # popping of args to routines to be explicit; if we let things
1119 # be deferred 'til after an STGJUMP, imminent death is certain!
1121 # -fomit-frame-pointer : *don't*
1122 # It's better to have a6 completely tied up being a frame pointer
1123 # rather than let GCC pick random things to do with it.
1124 # (If we want to steal a6, then we would try to do things
1125 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1127 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1128 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1129 # maybe gives reg alloc a better time
1130 # also: -fno-defer-pop is not sufficiently well-behaved without it
1132 } elsif ($TargetPlatform =~ /^mips-/) {
1133 unshift(@CcBoth_flags, ('-static'));
1135 } elsif ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1136 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1137 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1138 } elsif ($TargetPlatform =~ /^sparc-/) {
1140 } # end of setupMachOpts
1143 %************************************************************************
1145 \subsection{Set up for warnings}
1147 %************************************************************************
1149 Several warnings are turned on by default. These are supposed to be
1150 the 'I'm pretty sure you've made a mistake here' kind of warnings.
1151 The rest are turned on by the -W and -Wall options, or individually
1152 via their -fwarn and -fno-warn flags.
1155 sub setupWarningFlags {
1156 &add_Hsc_flags( @StandardWarnings );
1160 Same unshifting magic, but for special linker flags.
1162 The configure script determines whether the object file symbol tables
1163 have a leading underscore, and sets @LeadingUnderscore@ accordingly.
1164 (The driver script `sees' the setting of the @LeadingUnderscore@
1165 by having the Makefile prepend it).
1169 local($uscore) = ( ${LeadingUnderscore} eq 'YES' ) ? '_' : '';
1172 (($Ld_main) ? ( '-u', "${uscore}Main_" . $Ld_main . '_closure' ) : ()));
1174 # things that are referenced by the RTS - make sure that we pull 'em in
1176 ( '-u', "${uscore}PrelBase_Izh_static_info"
1177 ,'-u', "${uscore}PrelBase_Czh_static_info"
1178 ,'-u', "${uscore}PrelBase_Fzh_static_info"
1179 ,'-u', "${uscore}PrelBase_Dzh_static_info"
1180 ,'-u', "${uscore}PrelAddr_Azh_static_info"
1181 ,'-u', "${uscore}PrelAddr_Wzh_static_info"
1182 ,'-u', "${uscore}PrelAddr_I64zh_static_info"
1183 ,'-u', "${uscore}PrelAddr_W64zh_static_info"
1184 ,'-u', "${uscore}PrelStable_StablePtr_static_info"
1185 ,'-u', "${uscore}PrelBase_Izh_con_info"
1186 ,'-u', "${uscore}PrelBase_Czh_con_info"
1187 ,'-u', "${uscore}PrelBase_Fzh_con_info"
1188 ,'-u', "${uscore}PrelBase_Dzh_con_info"
1189 ,'-u', "${uscore}PrelAddr_Azh_con_info"
1190 ,'-u', "${uscore}PrelAddr_Wzh_con_info"
1191 ,'-u', "${uscore}PrelAddr_I64zh_con_info"
1192 ,'-u', "${uscore}PrelAddr_W64zh_con_info"
1193 ,'-u', "${uscore}PrelStable_StablePtr_con_info"
1194 ,'-u', "${uscore}PrelBase_False_static_closure"
1195 ,'-u', "${uscore}PrelBase_True_static_closure"
1196 ,'-u', "${uscore}PrelPack_unpackCString_closure"
1198 if (!$NoHaskellMain) {
1199 unshift (@Ld_flags,'-u', "${uscore}PrelMain_mainIO_closure");
1201 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1202 # sometimes we have lots of toc entries...
1203 # unshift(@Ld_flags, ('-Xlinker -bbigtoc -Xlinker -bnoquiet'));
1204 unshift(@Ld_flags, ('-Xlinker -bbigtoc'));
1207 } # end of setupLinkOpts
1211 %************************************************************************
1213 \subsection{Set up include paths and system-library enslurpment}
1215 %************************************************************************
1217 Now that we know what garbage-collector, etc., are required, we can
1218 finalise our list of libraries to slurp through, and generally Get
1223 # default includes must be added AFTER option processing
1224 if ( ! $INSTALLING ) {
1225 push (@Include_dir, "$TopPwd/${CURRENT_DIR}/${GHC_INCLUDE_DIR}");
1227 push (@Include_dir, "$InstLibDirGhc/includes");
1228 push (@Include_dir, "$InstLibDirGhc/includes");
1230 } # end of setupIncPaths
1235 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1238 foreach $f (@SysLibrary) {
1239 next if $f =~ /_cbits/;
1240 $f .= $BuildTag if $f =~ /^-lHS/;
1243 # Push library HSrts, plus boring clib bit
1244 push(@SysLibrary, "-lHSrts${BuildTag}");
1247 # RTS compiled with cygwin32, uses the WinMM API
1248 # to implement the itimers, since cygwin.dll does not
1249 # support it. Only reqd. for `ways' that use itimers.
1251 push(@SysLibrary, '-lwinmm') if $TargetPlatform eq 'i386-unknown-cygwin32';
1253 # Push the pvm libraries
1254 if ($BuildTag eq '_mp') {
1255 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1256 push(@SysLibrary, "-L$pvmlib", '-lgpvm3', '-lpvm3');
1257 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1258 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1259 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1260 push(@SysLibrary, '-lsocket', '-lnsl');
1264 # Push the GNU multi-precision arith lib; and the math library
1266 # If this machine has GMP already installed, then we'll get the installed
1267 # lib here, because presumably the one in the tree won't have been built.
1269 if ($LibGmp eq 'not-installed') {
1270 push(@SysLibrary, "-lgmp");
1272 push(@SysLibrary, "-l$LibGmp");
1275 push(@SysLibrary, '-lm');
1278 %************************************************************************
1280 \subsection{Check that this system was built to do what we are asking}
1282 %************************************************************************
1284 Before continuing we check that the appropriate build is available.
1287 #die "$Pgm: no BuildAvail?? $BuildTag\n" if $BuildDescr{$BuildTag} eq '' ; # sanity
1289 if ( $BuildDescr{$BuildTag} eq '' ) {
1290 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1291 "' \"build\" is not available with your GHC setup.\n";
1292 print STDERR "(It was not configured for it at your site.)\n";
1293 print STDERR $ShortUsage;
1297 } # end of setupSyslibs
1301 %************************************************************************
1303 \subsection{Final miscellaneous setup bits before we start going}
1305 %************************************************************************
1307 Record largest specific heapsize, if any.
1309 sub setupHeapStackSize {
1310 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1311 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1312 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1313 push(@HsC_rts_flags, "-K$Specific_stk_size");
1317 If no input or link files seen, then we let 'em feed in stdin; this is
1318 mainly for debugging.
1322 if ($#Input_file < 0 && $#Link_file < 0) {
1323 @Input_file = ( '-' );
1325 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1326 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n" if -t;
1327 while (<STDIN>) { print INF $_; }
1328 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1333 Tell the world who we are, if they asked.
1335 print STDERR "${ProjectName}, version ${ProjectVersion}, patchlevel ${ProjectPatchLevel}\n"
1339 %************************************************************************
1341 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1343 %************************************************************************
1345 Process the input files; don't continue with linking if there are
1346 problems (global variable @$Status@ non-zero).
1348 foreach $ifile (@Input_file) {
1349 &ProcessInputFile($ifile);
1352 if ( $Status > 0 ) { # don't link if there were errors...
1353 print STDERR $ShortUsage;
1358 # append last minute flags linker and consistency flags
1365 Link if appropriate.
1368 local($libdirs) = '';
1370 # glue them together:
1371 push(@UserLibrary_dir, @SysLibrary_dir);
1373 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1375 # for a linker, use an explicitly given one, or the going C compiler ...
1376 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1378 if ( ($Specific_output_file eq '') &&
1379 ($TargetPlatform eq 'i386-unknown-cygwin32') ) {
1380 $Specific_output_file = 'main.exe';
1381 print STDERR "Output file not specified, defaulting to \"main.exe\"\n";
1384 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1385 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1387 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $TopClosureFile $libdirs @UserLibrary @SysLibrary";
1388 &run_something($to_do, 'Linker');
1390 # finally, check the consistency info in the binary
1391 local($executable) = $Files_to_tidy[0];
1392 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1395 # dynamically load consistency-chking code; then do it.
1396 require('ghc-consist.prl')
1397 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1399 &chk_consistency_info ( $executable );
1402 # if PVM parallel stuff, we do truly weird things.
1403 # Essentially: (1) move the executable over to where PVM expects
1404 # to find it. (2) create a script in place of the executable
1405 # which will cause the program to be run, via SysMan.
1406 if ( $PARing eq 'p' ) {
1407 local($pvm_executable) = $executable;
1408 local($pvm_executable_base);
1410 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1411 local($pwd) = `pwd`;
1413 $pwd =~ s/^\/tmp_mnt//;
1414 $pvm_executable = "$pwd/$pvm_executable";
1417 $pvm_executable =~ s|/|=|g; # make /s into =s
1418 $pvm_executable_base = $pvm_executable;
1420 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1421 . "/$pvm_executable";
1423 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1425 # OK, now create the magic script for "$executable"
1426 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1427 print EXEC <<EOSCRIPT1;
1428 eval 'exec perl -S \$0 \${1+"\$@"}'
1429 if \$running_under_some_shell;
1430 # =!=!=!=!=!=!=!=!=!=!=!
1431 # This script is automatically generated: DO NOT EDIT!!!
1432 # Generated by Glasgow Haskell, version ${ProjectVersion} ${ProjectPatchLevel}
1434 \$pvm_executable = '$pvm_executable';
1435 \$pvm_executable_base = '$pvm_executable_base';
1436 \$SysMan = '$SysMan';
1439 print EXEC <<\EOSCRIPT2;
1440 # first, some magical shortcuts to run "commands" on the binary
1442 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1444 system("$cmd $pvm_executable");
1448 # OK, really run it; process the args first
1449 $ENV{'PE'} = $pvm_executable_base;
1451 $nprocessors = 2; # the default
1455 # ToDo: handle --RTS
1456 args: while ($a = shift(@ARGV)) {
1457 if ( $a eq '+RTS' ) {
1459 } elsif ( $a eq '-RTS' ) {
1462 if ( $a eq '-d' && $in_RTS_args ) {
1464 } elsif ( $a =~ /^-N(\d+)/ && $in_RTS_args ) {
1467 push(@nonPVM_args, $a);
1471 local($return_val) = 0;
1472 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
1474 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
1477 close(EXEC) || die "Failed closing $executable\n";
1478 chmod 0755, $executable;
1482 # that... that's all, folks!
1484 exit $Status; # will still be 0 if all went well
1487 %************************************************************************
1489 \section[Driver-do-one-file]{How to process a single input file}
1491 %************************************************************************
1494 sub ProcessInputFile {
1495 local($ifile) = @_; # input file name
1496 local($ifile_root); # root of or basename of input file
1497 local($ofile_target); # ultimate output file we hope to produce
1498 # from input file (need to know for recomp
1499 # checking purposes)
1500 local($hifile_target);# ditto (but .hi file)
1501 local($ofile_c_stub_target);
1502 local($ofile_h_stub_target);
1505 Handle the weirdity of input from stdin.
1507 if ($ifile ne '-') {
1508 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1509 $ofile_target = # may be reset later...
1510 ($Specific_output_file ne '' && ! $Do_lnkr)
1511 ? $Specific_output_file
1512 : &odir_ify($ifile_root, 'o');
1513 $hifile_target= ($Specific_hi_file ne '')
1515 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1516 # NB: may change if $ifile_root isn't module name (??)
1517 ($ofile_c_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.c/;
1518 ($ofile_h_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.h/;
1520 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1521 $ifile_root = '_stdin';
1522 $ofile_target = '_stdout'; # gratuitous?
1523 $hifile_target= '_stdout'; # ditto?
1527 We need to decide what phases of the compilation system we will run
1528 over this file. The defaults are the ones established when processing
1529 flags. (That established what the last phase run for all files is.)
1531 We do the pre-recompilation-checker phases here; the rest later.
1535 Look at the suffix and decide what initial phases of compilation may
1536 be dropped off for this file. Also the rather boring business of
1537 which files are coming-in/going-out.
1539 Again, we'll do the post-recompilation-checker parts of this later.
1541 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1542 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1545 # names of the files to stuff between phases
1546 # defaults are temporaries
1547 local($in_lit2pgm) = $ifile;
1548 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1549 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1550 local($hsc_hi) = "$Tmp_prefix.hi";
1551 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1552 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1553 local($as_out) = $ofile_target;
1555 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
1557 # OK, let's strip off some literate junk..
1559 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
1561 $lit2pgm_hscpp = $ifile;
1567 # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas
1568 &check_for_source_options($lit2pgm_hscpp,$ifile);
1570 # Options found in the source file take a back seat, i.e., we scan
1571 # them first. Only process the command line again if source file
1572 # contained anything of interest *or* there's more than one
1573 # input file (we have to reset the options).
1575 if ( $#Input_file >= 0 || $#File_options >= 0) {
1576 #@File_options = (@File_options, @Cmd_opts);
1578 # Now process the command line
1579 &initDriverGlobals();
1580 &processArgs((@File_options,@Cmd_opts));
1581 print STDERR "\nEffective command line: " .
1582 join(' ',(@File_options,@Cmd_opts)) . "\n" if $Verbose;
1585 # Having got the effective command line scanned, set up
1586 # the various options in prep for some real work.
1588 # check the sanity of the BuildTag we're about to use,
1589 # and if needs be, add some more flags and setup to
1590 # the different phases.
1593 &setupOptimiseFlags();
1596 &setupWarningFlags();
1597 &setupHeapStackSize();
1600 # These two variables need to be set after the
1601 # command-line has been processed and the build options
1602 # have be seen set up. This is because command-line options
1603 # can control whether to compile vias C or not.
1605 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1607 : ( ($HscOut eq '-C=') ? 1 : 0 );
1608 local($do_as) = $Do_as;
1609 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1610 local($hsc_out_c_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.c" : "";
1611 local($hsc_out_h_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.h" : "";
1613 if ($Only_preprocess_hc) { # stop after having run $Cc -E
1616 if ($Only_preprocess_C) { # stop after having run $hscpp
1617 $do_hsc=0; $do_cc = 0; $do_as=0;
1618 } elsif ($ifile =~ /.lhs$/ || $ifile =~ /.hs$/ ) {
1620 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
1621 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1623 $hsc_out_c_stub = '';
1624 $hsc_out_h_stub = '';
1625 } elsif ($ifile =~ /\.c$/) {
1626 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1627 $hsc_out = $ifile; $is_hc_file = 0;
1628 $hsc_out_c_stub = '';
1629 $hsc_out_h_stub = '';
1630 } elsif ($ifile =~ /\.[sS]$/) {
1631 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
1633 } else { # don't know what it is, but nothing to do herein...
1634 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
1637 # hack to avoid running hscpp
1638 $HsCpp = $Cat if ! $Cpp_flag_set;
1640 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) if $do_hscpp;
1644 We now think about whether to run hsc/cc or not (when hsc produces .s
1645 stuff, it effectively takes the place of both phases).
1646 To get the output file name right: for each phase that we are {\em
1647 not} going to run, set its input (i.e., the output of its preceding
1648 phase) to @"$ifile_root.<suffix>"@.
1651 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
1654 # Warning issued if -keep-hc-file-too is used without
1655 # -fvia-C (or the equivalent)
1657 if ( $HscOut ne '-C=' && $Keep_hc_file_too ) {
1658 print STDERR "$Pgm: warning: Native code generator to be used, -keep-hc-file-too will be ignored\n";
1661 if (! $do_cc && ! $do_as) { # stopping after hsc
1662 $hsc_out = ($Specific_output_file ne '')
1663 ? $Specific_output_file
1664 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
1666 $ofile_target = $hsc_out; # reset
1669 if (! $do_as) { # stopping after gcc (or hsc)
1670 $cc_as = ($Specific_output_file ne '')
1671 ? $Specific_output_file
1672 : &odir_ify($ifile_root, ( $Only_preprocess_hc ) ? 'i' : 's');
1674 $ofile_target = $cc_as; # reset
1680 Now the Haskell compiler, C compiler, and assembler
1684 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
1685 $ofile_target, $hifile_target,
1686 $going_interactive);
1689 if (-f $hsc_out_h_stub) {
1690 &run_something("cp $hsc_out_h_stub $ofile_h_stub_target", 'Copy foreign export header file');
1693 if (-f $hsc_out_c_stub) {
1694 &run_something("cp $hsc_out_c_stub $ofile_c_stub_target", 'Copy foreign export C stubs');
1695 local ($hsc_out_s_stub);
1696 local ($hsc_out_o_stub);
1697 ($ofile_s_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$/\.s/;
1698 ($ofile_o_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$/\.o/;
1699 &runGcc (0, $ofile_c_stub_target, $ofile_s_stub_target);
1700 &runAs ($ofile_o_stub_target, $ofile_s_stub_target);
1702 # Bring the C stub protos into scope when compiling the .hc file.
1704 push (@CcInjects, "#include \"${hsc_out_h_stub}\"\n");
1705 # Hack - ensure that the stub .h file is included in the OPTIONS section
1706 # if the .hc file is saved.
1707 push (@File_options, "-#include \"${ofile_h_stub_target}\"\n");
1712 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
1713 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root) if ! $Only_preprocess_hc;
1716 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
1718 # save a copy of the .s file..
1719 &saveIntermediate($ifile_root , "s" , $cc_as) if ($do_as && $Keep_s_file_too);
1720 &runAs($as_out, $ifile_root) if $do_as;
1723 Finally, decide what to queue up for linker input.
1725 # tentatively assume we will eventually produce linker input:
1726 push(@Link_file, &odir_ify($ifile_root, 'o'));
1728 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
1730 if ( $ifile !~ /\.(lhs|hs|hc|c|s|a|S)$/ && $ifile !~ /_hc$/ ) {
1731 # There's sometimes confusion regarding .hi files; users
1732 # supplying them on the command line.
1733 if ( $ifile =~ /\.hi$/ ) {
1734 print STDERR "$Pgm: warning: found `$ifile' on command line; interface files should not be supplied here - ignoring it.\n";
1736 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n";
1738 # oops; we tentatively pushed the wrong thing; fix & do the right thing
1739 pop(@Link_file); push(@Link_file, $ifile);
1743 } # end of ProcessInputFile
1746 %************************************************************************
1748 \section[Driver-run-phases]{Routines to run the various phases}
1750 %************************************************************************
1754 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
1758 # Only add #line pragma if we're going to need it.
1759 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && " if ($Cpp_flag_set);
1760 $to_do .= "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
1762 push(@Files_to_tidy, $lit2pgm_hscpp );
1764 &run_something($to_do, 'literate pre-processor');
1770 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
1774 # Strictly speaking, echoing of the following line pragma is only required
1775 # on non-delit'ed input, as we've already added it during de-lit. However,
1776 # hscpp will then add a {-# LINE 1 "$lit2pgm_hsc" -} to the top of the file,
1777 # which is not very informative (but harmless). Hence, we uniformly have
1778 # {-# LINE 1 "$in_lit2pgm" #-} as the first line to all cpp'ed hsc input.
1780 $to_do = "echo '{-# LINE 1 \"$in_lit2pgm\" -}' > $hscpp_hsc && ";
1782 if ($HsCpp eq $Cat) {
1783 $to_do .= "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
1784 push(@Files_to_tidy, $hscpp_hsc );
1785 &run_something($to_do, 'Ineffective C pre-processor');
1787 local($includes) = '-I' . join(' -I',@Include_dir);
1788 $to_do .= "$HsCpp $Verbose @HsCpp_flags @HsSourceCppOpts $includes $lit2pgm_hscpp >> $hscpp_hsc";
1789 push(@Files_to_tidy, $hscpp_hsc );
1790 &run_something($to_do, 'Haskellised C pre-processor');
1793 if ( $Only_preprocess_C ) {
1794 $to_do = "$Cat $hscpp_hsc";
1795 &run_something($to_do, '');
1803 sub runHscAndProcessInterfaces {
1804 local($ifile, $hscpp_hsc, $ifile_root,
1805 $ofile_target, $hifile_target,
1806 $going_interactive) = @_;
1808 # $ifile is the original input file
1809 # $hscpp_hsc post-unlit, post-cpp, etc., input file
1810 # $ifile_root input filename minus suffix
1811 # $ofile_target the output file that we ultimately hope to produce
1812 # $hifile_target the .hi file ... (ditto)
1814 local($source_unchanged) = 1;
1816 # Check if the source file is up to date relative to the target; in
1817 # that case we say "source is unchanged" and let the compiler bail out
1818 # early if the import usage information allows it.
1820 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
1821 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
1823 # The informational messages below are now conditional on -v being set -- SOF
1824 if ( $ofile_target ne "_stdin.s" && ! -f $ofile_target ) {
1825 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n" if $Verbose;
1826 $source_unchanged = 0;
1829 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
1830 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
1832 if ( $hifile_target ne "_stdout" && ! -f $hifile_target ) {
1833 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n" if $Verbose;
1834 $source_unchanged = 0;
1837 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
1838 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
1840 if ( $ofile_target ne "_stdin.s" && $i_mtime > $o_mtime) {
1841 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n" if $Verbose;
1842 $source_unchanged = 0;
1845 # Tell the compiler which version we're using
1846 push(@HsC_flags, "-fhi-version=${ProjectVersionInt}");
1848 # So if source_unchanged is still "1", we pass on the good news to the compiler
1849 # The -recomp flag can disable this, forcing recompilation
1850 if ($Do_recomp_chkr && $source_unchanged) {
1851 push(@HsC_flags, '-fsource-unchanged');
1856 &runHsc($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive);
1858 # See if it bailed out early, saying nothing needed doing.
1859 # We work this out by seeing if it created an output .hi file
1861 if ( ! -f $hsc_hi && $ProduceHi !~ /-nohifile=/ ) {
1862 # Doesn't exist, so we bailed out early.
1863 # Tell the C compiler and assembler not to run
1864 $do_cc = 0; $do_as = 0;
1866 # Update dependency info, touch both object file and
1867 # interface file, so that the following invariant is
1870 # a dependent module's interface file should after recompilation
1871 # checking be newer than the interface files of its imports.
1873 # That is, if module A's interface file changes, then module B
1874 # (which import from A) needs to be checked.
1875 # If A's change does not affect B, which causes the compiler to bail
1876 # out early, we still need to touch the interface file of B. The reason
1877 # for this is that B may export A's interface.
1879 &run_something("touch $ofile_target",
1880 "Touch $ofile_target, to propagate dependencies") if $HscOut ne '-N=';
1881 &run_something("touch $hifile_target",
1882 "Touch $hifile_target, to propagate dependencies") if $ProduceHi =~ /-nohifile=/ ;
1886 # Didn't bail out early (new .hi file) so we thunder on
1888 # If non-interactive, heave in the consistency info at the end
1889 # NB: pretty hackish (depends on how $output is set)
1890 if ( ! $going_interactive ) {
1891 if ( $HscOut eq '-C=' ) {
1892 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
1894 } elsif ( $HscOut eq '-S=' ) {
1895 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
1896 $consist =~ s/,/./g;
1897 $consist =~ s/\//./g;
1898 $consist =~ s/-/_/g;
1899 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
1900 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
1902 &run_something($to_do, 'Pin on Haskell consistency info');
1906 # Interface-handling is important enough to live off by itself
1907 if ( $ProduceHi !~ /-nohifile=/ ) { # If we've produced one, process it.
1908 require('ghc-iface.prl') || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
1909 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
1911 # if we're going to split up object files,
1912 # we inject split markers into the .hc file now
1913 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
1914 &inject_split_markers ( $hsc_out );
1917 # save a copy of the .hc file, even if we are carrying on...
1918 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
1919 &saveIntermediate($ifile_root , "hc" , $hsc_out);
1929 local($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive) = @_;
1931 # prepend comma to HsP flags (so hsc can tell them apart...)
1932 foreach $a ( @HsP_flags ) { $a = ",$a" unless $a =~ /^,/; }
1934 &makeHiMap() unless $HiMapDone;
1935 push(@HsC_flags, "-himap=$HiIncludeString");
1937 # here, we may produce .hc/.s and/or .hi files
1938 local($output) = '';
1939 #@Files_to_tidy = ();
1941 if ( $going_interactive ) {
1942 # don't need .hi unless we're going to show it on stdout:
1943 $ProduceHi = '-nohifile=' if ! $HiOnStdout;
1944 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
1947 # set up for producing output/.hi; note that flag twiddling
1948 # may mean that nothing will actually be produced:
1949 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out -F=$hsc_out_c_stub -FH=$hsc_out_h_stub";
1950 push(@Files_to_tidy, $hsc_hi, $hsc_out, $hsc_out_c_stub, $hsc_out_h_stub );
1952 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
1953 if ( $CollectingGCstats ) {
1954 push(@HsC_rts_flags, "-S$ifile_root.stat");
1955 push(@Files_to_tidy, "$ifile_root.stat");
1958 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
1959 # emit nofibbish time/bytes-alloc stats to stderr;
1960 # see later .stat file post-processing
1961 print STDERR "warning: both -Rgc-stats and -Rghc-timing used, -Rghc-timing wins." if $CollectingGCstats;
1962 push(@HsC_rts_flags, "-s$Tmp_prefix.stat");
1963 push(@Files_to_tidy, "$Tmp_prefix.stat");
1967 if ($Specific_dump_file ne '') {
1968 $dump = "2>> $Specific_dump_file";
1969 $Using_dump_file = 1;
1973 # Win32 only: If the command processor used by system()
1974 # exec()s the application as an ordinary Win32 executable,
1975 # we're in trouble here, since the command line is likely
1976 # to be > 255 chars long. To work around this situation,
1977 # $HsC also understands `at-files', i.e., `@file' on the
1978 # command line will cause $HsC to add the contents of `file'
1979 # to the command line.
1981 # [ Note: support for `at-files' is not compiled in by default ]
1982 $cmd_line_opts_via_at_file=0;
1983 if ($cmd_line_opts_via_at_file) {
1985 local($to_do_opts) = "$Tmp_prefix.opts";
1986 open(OPTS, "> $Tmp_prefix.opts") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.opts\n");
1987 print OPTS "$dump @HsC_flags $CoreLint $StgLint $Verbose";
1989 $to_do = "$HsC @HsP_flags ,$hscpp_hsc \@$Tmp_prefix.opts $output +RTS @HsC_rts_flags";
1993 $to_do = "$HsC @HsP_flags ,$hscpp_hsc $dump @HsC_flags $CoreLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
1995 &run_something($to_do, 'Haskell compiler');
1997 # finish business w/ nofibbish time/bytes-alloc stats
1998 &process_ghc_timings() if $CollectGhcTimings;
2002 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
2003 of (module-name, pathname) pairs, one per line, separated by a space.
2006 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
2010 # collect in %HiMap; write later; also used elsewhere in driver
2012 local($mod, $path, $d, $e);
2014 # reset the global variables:
2016 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
2018 foreach $d ( @Import_dir ) {
2019 if ($HiIncludeString) {
2020 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix}";
2022 $HiIncludeString = "$d%.${HiSuffix}";
2027 foreach $d ( @SysImport_dir ) {
2028 if ($HiIncludeString) {
2029 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix_prelude}";
2031 $HiIncludeString = "${d}%.${HiSuffix_prelude}";
2040 %************************************************************************
2042 \section[Driver-misc-utils]{Miscellaneous utilities}
2044 %************************************************************************
2046 %************************************************************************
2048 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
2050 %************************************************************************
2054 local($ofile,$def_suffix) = @_;
2056 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
2060 local($orig_file, $def_suffix) = @_;
2061 if ($Specific_output_dir eq '') { # do nothing
2062 &osuf_ify($orig_file, $def_suffix);
2064 local ($orig_file_only);
2065 ($orig_file_only = $orig_file) =~ s|.*/||;
2066 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
2073 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
2075 local($includes) = '-I' . join(' -I', @Include_dir);
2078 local($c_flags) = "@CcBoth_flags";
2079 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2081 # "input" files to use that are not in some weird directory;
2082 # to help C compilers grok .hc files [ToDo: de-hackify]
2083 local($cc_help) = "ghc$$.c";
2084 local($cc_help_s) = "ghc$$.s";
2087 $s_output = (($is_hc_file && $DoAsmMangling) || $TargetPlatform =~ /^(powerpc|rs6000|hppa)/) ? $cc_as_o : $cc_as;
2088 $c_flags .= " @CcRegd_flags";
2089 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2091 # C compiler won't like the .hc extension. So we create
2092 # a tmp .c file which #include's the needful.
2093 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2094 if ( $is_hc_file ) {
2098 # user may have asked for #includes to be injected...
2099 print TMP @CcInjects if $#CcInjects >= 0;
2101 # Straight .c files may want to know that they're being used
2102 # with a particular version of GHC, so we define __GLASGOW_HASKELL__ for their benefit.
2103 print TMP "#define __GLASGOW_HASKELL__ ${ProjectVersionInt}\n";
2105 # heave in the consistency info
2106 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2108 print TMP "#include \"$hsc_out\"\n";
2109 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2111 # Don't redirect stderr into intermediate file if slamming output onto stdout (e.g., with -E)
2112 local($fuse_stderr) = "2>&1" if ! $Only_preprocess_hc;
2113 local($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 )";
2115 if ( $Only_preprocess_hc ) { # HACK ALERT!
2116 $to_do =~ s/ -S\b//g;
2118 push(@Files_to_tidy, $cc_help, $cc_help_s, $s_output );
2119 $PostprocessCcOutput = 1 if ! $Only_preprocess_hc; # hack, dear hack...
2120 &run_something($to_do, 'C compiler');
2121 $PostprocessCcOutput = 0;
2122 if ( $Only_preprocess_hc ) {
2123 system("$Cat $Tmp_prefix.ccout");
2125 unlink($cc_help, $cc_help_s);
2131 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2133 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2135 if ($is_hc_file && $DoAsmMangling) {
2136 # dynamically load assembler-fiddling code, which we are about to use:
2137 require('ghc-asm.prl')
2138 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2139 # post-process the assembler [.hc files only]
2140 &mangle_asm($cc_as_o, $cc_as);
2142 } elsif ($TargetPlatform =~ /^hppa/) {
2143 # minor mangling of non-threaded files for hp-pa only
2144 require('ghc-asm.prl')
2145 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2146 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2148 } elsif ($TargetPlatform =~ /^powerpc|^rs6000/) {
2149 # minor mangling of non-threaded files for powerpcs and rs6000s
2150 require('ghc-asm.prl')
2151 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-powerpc.prl!\n");
2152 &mini_mangle_asm_powerpc($cc_as_o, $cc_as);
2155 # save a copy of the .s file, even if we are carrying on...
2156 #if ($do_as && $Keep_s_file_too) {
2157 # &saveIntermediate($ifile_root , "s" , $cc_as);
2164 local($as_out, $ifile_root) = @_;
2166 local($asmblr) = ( $As ) ? $As : $CcRegd;
2168 # need to add the -I flags in case the file is going through cpp (.S files)
2169 local($includes) = '-I' . join(' -I', @Include_dir);
2171 if ( ! $SplitObjFiles ) {
2172 local($to_do) = "$asmblr -o $as_out -c @As_flags $includes $cc_as";
2173 push(@Files_to_tidy, $as_out );
2174 &run_something($to_do, 'Unix assembler');
2176 } else { # more complicated split-ification...
2178 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2180 # If -odir is used, great, just pin it in front of the
2181 # generated split file names. If it hasn't been set, we
2182 # snatch it from the ifile_root.
2186 if ( $Specific_output_dir eq '' ) {
2187 $Specific_output_dir = ${ifile_root};
2190 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2191 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2192 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2193 push(@Files_to_tidy, $split_out );
2195 &run_something($to_do, 'Unix assembler');
2201 %************************************************************************
2203 \subsection[Driver-run-something]{@run_something@: Run a phase}
2205 %************************************************************************
2209 local($str_to_do, $tidy_name) = @_;
2211 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2212 print STDERR "$str_to_do\n" if $Verbose;
2214 if ($Using_dump_file) {
2215 open(DUMP, ">> $Specific_dump_file")
2216 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2217 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2219 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2222 local($return_val) = 0;
2224 if ( length($str_to_do) > 4000) {
2225 # 4000 - on the random side, just like the *real* ARG_MAX
2228 # With some shells, command lines of this length may
2229 # very well cause trouble. To safeguard against this, we squirrel the
2230 # command into a file and exec that.
2231 local ($sh) = $ENV{'REAL_SHELL'};
2232 print STDERR "Backup plan A: saving cmd line in ${Tmp_prefix}.sh and executing that with $sh\n" if $Verbose;
2233 open (TEMP, "> ${Tmp_prefix}.sh") ||
2234 &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.sh'\n");
2235 print TEMP "$Time $str_to_do\n";
2237 &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.sh'\n");
2238 system("$sh $Tmp_prefix.sh");
2241 unlink "${Tmp_prefix}.sh";
2243 system("$Time $str_to_do");
2247 if ( $PostprocessCcOutput ) { # hack, continued
2248 open(CCOUT, "< $Tmp_prefix.ccout")
2249 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2251 next if /call-clobbered/;
2252 next if /control reaches end/;
2253 next if /from .*Stg\.h:/;
2254 next if /from ghc\d+.c:\d+:/;
2255 next if /: At top level:$/;
2256 next if /: In function \`.*\':$/;
2257 next if /\`ghc_cc_ID\' defined but not used/;
2260 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2263 if ($return_val != 0) {
2264 if ($Using_dump_file) {
2265 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2267 &tidy_up_and_die($return_val, '');
2269 $Using_dump_file = 0;
2273 %************************************************************************
2275 \subsection[Driver-ghc-timing]{Emit nofibbish GHC timings}
2277 %************************************************************************
2279 NB: nearly the same as in @runstdtest@ script.
2282 sub process_ghc_timings {
2283 local($StatsFile) = "$Tmp_prefix.stat";
2284 local($SysSpecificTiming) = 'ghc';
2286 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2287 local($max_live) = 0;
2288 local($tot_live) = 0; # for calculating residency stuff
2289 local($tot_samples) = 0;
2292 if (! /Gen:\s+0/ && ! /Minor/ && /^\s*\d+\s+\d+\s+(\d+)\s+\d+\.\d+/ ) {
2293 $max_live = $1 if $max_live < $1;
2297 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2299 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2300 $MaxResidency = $1; $ResidencySamples = $2;
2303 $GCs = $1 if /^\s*([0-9,]+) (collections? in generation 0|garbage collections? performed)/;
2305 if ( /^\s+([0-9]+)\s+Mb total memory/ ) {
2309 # The presence of -? in the following pattern is only there to
2310 # accommodate 0.29 && <= 2.05 RTS'
2311 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*-?(\d+\.\d\d)s elapsed\)/ ) {
2312 $InitTime = $1; $InitElapsed = $2;
2313 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2314 $MutTime = $1; $MutElapsed = $2;
2315 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2316 $GcTime = $1; $GcElapsed = $2;
2319 close(STATS) || die "Failed when closing $StatsFile\n";
2320 if ( $tot_samples > 0 ) {
2321 $ResidencySamples = $tot_samples;
2322 $MaxResidency = $max_live;
2323 $AvgResidency = int ($tot_live / $tot_samples) ;
2326 # warn about what we didn't find
2327 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2328 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2329 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2330 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2331 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2332 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2333 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2334 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2336 # things we didn't necessarily expect to find
2337 $MaxResidency = 0 unless defined($MaxResidency);
2338 $AvgResidency = 0 unless defined($AvgResidency);
2339 $ResidencySamples = 0 unless defined($ResidencySamples);
2342 $BytesAlloc =~ s/,//g;
2343 $MaxResidency =~ s/,//g;
2345 $InitTime =~ s/,//g;
2346 $InitElapsed =~ s/,//g;
2348 $MutElapsed =~ s/,//g;
2350 $GcElapsed =~ s/,//g;
2352 # print out what we found
2353 print STDERR "<<$SysSpecificTiming: ",
2354 "$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)",
2355 " :$SysSpecificTiming>>\n";
2362 %************************************************************************
2364 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2366 %************************************************************************
2370 local($to_do) = "\n$Rm $Tmp_prefix*";
2371 if ( $Tmp_prefix !~ /^\s*$/ ) {
2372 print STDERR "$to_do\n" if $Verbose;
2377 sub tidy_up_and_die {
2378 local($return_val, $msg) = @_;
2380 # delete any files to tidy
2381 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2382 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2386 exit (($return_val == 0) ? 0 : 1);
2390 %************************************************************************
2392 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2394 %************************************************************************
2396 Some command-line arguments take an argument, e.g.,
2397 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2398 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2399 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2401 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2402 gobble the second argument (and probably set the heapsize to something
2406 local(*Args, $option, $rest_of_arg) = @_;
2408 if ($rest_of_arg ne '') {
2409 return($rest_of_arg);
2410 } elsif ($#Args >= 0) {
2411 local($temp) = $Args[0]; shift(@Args);
2414 print STDERR "$Pgm: no argument following $option option\n";
2425 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2427 foreach $f ( @HsC_antiflags ) {
2428 return(0) if $flag eq $f;
2430 # foreach $f ( @HsC_flags ) {
2431 # return(0) if $flag eq $f;
2436 sub squashHscFlag { # pretty terrible
2440 foreach $f ( @HsC_flags ) {
2441 if ($flag eq $f) { $f = ''; }
2449 foreach $f ( @flags ) {
2450 push( @HsC_flags, $f ) if &isntAntiFlag($f);
2455 To add another system library, you'll need to augment the
2456 Supported_syslibs variable with name and info on your addition
2457 to the syslib family. The info bit consist of the following:
2459 - interface file directory
2460 see the misc or posix entry for how to distinguish
2461 between using installed and build tree directories.
2463 - directory location of archives
2465 - location of (way-independent) C support libs.
2466 not all libraries need this - if you don't, just
2467 give the empty string.
2468 - list of syslibs you depend on.
2470 - additional ghc command line flags that should be used.
2471 - additional C compiler command line flags that should be used.
2477 # Hash to keep track of
2478 %Syslibs_added = ();
2481 local($syslib) = @_;
2483 # Lifting this out of this sub brings it out of scope - why??
2484 %Supported_syslibs =
2486 [ # where to slurp interface files from
2488 ? "$InstLibDirGhc/imports/exts"
2489 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/exts"
2491 , # where to find the archive to use when linking
2494 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/exts"
2497 , '' # Syslib dependencies
2498 , '' # extra ghc opts
2499 , '' # extra cc opts
2500 , '' # extra ld opts
2504 [ # where to slurp interface files from
2506 ? "$InstLibDirGhc/imports/misc"
2507 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc"
2509 , # where to find the archive to use when linking
2512 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc"
2514 , # where to find the cbits archive to use when linking
2517 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc/cbits"
2519 , 'exts' # Syslib dependencies
2520 , '' # extra ghc opts
2521 , '' # extra cc opts
2522 , ( $TargetPlatform =~ /-solaris2$/ ? '-lnsl -lsocket' : '')
2525 [ # where to slurp interface files from
2527 ? "$InstLibDirGhc/imports/hbc"
2528 : "$TopPwd/CONTRIB/libraries/hbc/src"
2530 , # where to find the archive to use when linking
2533 : "$TopPwd/CONTRIB/libraries/src/hbc"
2535 , # where to find the cbits archive to use when linking
2538 : "$TopPwd/CONTRIB/libraries/hbc/cbits"
2540 , 'exts' # Syslib dependencies
2541 , '' # extra ghc opts
2542 , '' # extra cc opts
2546 [ # where to slurp interface files from
2548 ? "$InstLibDirGhc/imports/posix"
2549 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix"
2551 , # where to find the archive to use when linking
2554 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix"
2556 , # where to find the cbits archive to use when linking
2559 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix/cbits"
2561 , 'misc' # Syslib dependencies
2562 , '' # extra ghc opts
2563 , '' # extra cc opts
2564 , '' # extra ld opts
2567 [ # where to slurp interface files from
2569 ? "$InstLibDirGhc/imports/concurrent"
2570 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent"
2572 , # where to find the archive to use when linking
2575 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent"
2577 , '' # where to find the cbits archive to use when linking
2578 , '' # Syslib dependencies
2579 , '' # extra ghc opts
2580 , '' # extra cc opts
2581 , '' # extra ld opts
2584 [ # where to slurp interface files from
2586 ? "$InstLibDirGhc/imports/win32"
2587 : "$TopPwd/hslibs/win32/src"
2589 , # where to find the archive to use when linking
2592 : "$TopPwd/hslibs/win32/src"
2595 , 'exts' # Syslib dependencies
2596 , '' # extra ghc opts
2597 , '' # extra cc opts
2598 , '-luser32 -lgdi32' # extra ld opts
2602 # check if it's supported..
2604 if ( !exists $Supported_syslibs{$syslib} ) {
2605 print STDERR "$Pgm: no such system library (-syslib): $syslib\n";
2610 # This check is here to avoid syslib loops from
2611 # spoiling the party. A side-effect of it is that
2612 # it disallows multiple mentions of a syslib on a command-line,
2613 # explicit *and* implicit ones (i.e., "-syslib exts -syslib misc"
2614 # is not equal to "-syslib exts -syslib misc -syslib exts",
2615 # which it needs to be)
2617 # Since our current collection of syslibs don't have any
2618 # loops, this test is disabled.
2620 # ToDo: loop avoidance scheme when the need arises
2622 #return if ( exists $Syslibs_added{$syslib} );
2624 $Syslibs_added{$syslib} = 1;
2626 local ($hi_dir, $lib_dir, $lib_cbits_dir,
2627 $syslib_deps, $syslib_ghc_opts,
2628 $syslib_cc_opts, $syslib_ld_opts) = @{ $Supported_syslibs{$syslib} };
2631 unshift(@SysImport_dir, $hi_dir);
2632 push(@SysLibrary_dir, $lib_dir);
2633 push(@SysLibrary_dir, $lib_cbits_dir) if ( $lib_cbits_dir ne '');
2635 push(@SysLibrary, "-lHS$syslib");
2636 push(@SysLibrary, "-lHS${syslib}_cbits") if ( $lib_cbits_dir ne '');
2637 push(@SysLibrary, $syslib_ld_opts) if ($syslib_ld_opts ne '');
2639 # Add on any extra dependencies.
2640 foreach $lib (split(' ',$syslib_deps)) {
2646 Source files may have {-# OPTIONS ... #-} pragmas at the top, containing
2647 command line options we want to append to collection of commands specified
2648 directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell
2649 file for any such pragmas:
2652 sub check_for_source_options {
2653 local($file,$ifile) = @_;
2654 local($comment_start,$comment_end);
2656 if ($ifile =~ /\.hc$/ ||
2659 $ifile =~ /_s$/ ) { # `Real' C intermediate
2660 $comment_start = "/\\*";
2661 $comment_end = "\\*/";
2662 } else { # Assume it is a file containing Haskell source
2663 $comment_start = "{-#";
2664 $comment_end = "#-}";
2667 open(FILE,$file) || return(1); # No big loss
2670 if ( /^${comment_start} OPTIONS (.*)${comment_end}$/ ) {
2671 # add the options found at the back of the command line.
2672 local(@entries) = split(/\s+/,$1);
2673 print STDERR "Found OPTIONS " . join(' ',@entries) . " in $file\n" if $Verbose;
2674 push(@File_options, @entries);
2676 elsif ( /^$/ ) { # ignore empty lines
2679 elsif ( /^#line.+$/ ) { # ignore comment lines (unused..ToDo: rm )
2682 elsif ( /^{-# LINE.+$/ ) { # ignore line pragmas
2685 else { # stop looking, something non-empty / not
2686 # ${comment_start} OPTIONS .. ${comment_end} encountered.
2687 close(FILE);return(0);
2696 We split the initial argv up into three arrays:
2702 the reason for doing so is to be able to deal
2703 with {-# OPTIONS #-} pragma in source files properly.
2709 arg: while($_ = $args[0]) {
2711 # sigh, we have to deal with these -option arg specially here.
2712 /^-(tmpdir|odir|ohi|o|isuf|osuf|hisuf|odump|syslib)$/ &&
2713 do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; };
2714 /^--?./ && do { push(@Cmd_opts, $_); next arg; };
2716 if (/\.([^_]+_)?[oa]$/) {
2717 push(@Link_file, $_);
2719 push(@Input_file, $_);
2722 # input files must exist:
2724 print STDERR "$Pgm: input file doesn't exist: $_\n";
2732 When saving an intermediate file (.hc or .s) away, we
2733 have to prefix any OPTIONS found in the original source file.
2736 sub saveIntermediate {
2737 local ($final,$suffix,$tmp)= @_ ;
2740 # $final -- root of where to park ${final}.${suffix}
2741 # $tmp -- temporary file where hsc put the intermediate file.
2743 # Delete the old file
2744 $to_do = "$Rm ${final}.${suffix}"; &run_something($to_do, "Removing old .${suffix} file");
2746 if ( $#File_options >= 0 ) { # OPTIONS found in Haskell source unit
2747 # Add OPTION comment to the top of the generated .${suffix} file
2748 open(TEMP, "> ${final}.${suffix}") || &tidy_up_and_die(1,"Can't open ${final}.${suffix}\n");
2749 print TEMP "/* OPTIONS " . join(' ',@File_options) . " */\n";
2751 print STDERR "Prepending OPTIONS: " . join(' ',@File_options) . " to ${final}.${suffix}\n" if $Verbose;
2753 $to_do = "$Cat $tmp >> ${final}.${suffix}";
2754 &run_something($to_do, "Saving copy of .${suffix} file");
2761 Command-line processor
2767 # can't use getopt(s); what we want is too complicated
2769 arg: while($_ = $Args[0]) {
2772 #---------- help -------------------------------------------------------
2773 if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; }
2775 #-----------version ----------------------------------------------------
2776 /^--version$/ && do { print STDERR "${ProjectName}, version ${ProjectVersion}, patchlevel ${ProjectPatchLevel}\n"; exit $Status; };
2778 #---------- verbosity and such -----------------------------------------
2779 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
2781 #---------- what phases are to be run ----------------------------------
2782 /^-(no-)?recomp/ && do { $Do_recomp_chkr = ($1 eq '') ? 1 : 0; next arg; };
2784 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
2785 # change the global default:
2786 # we won't run cat; we'll run the real thing
2788 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
2790 # stop after generating C
2792 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
2793 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
2795 # leave out actual C generation (debugging) [also turns off interface gen]
2798 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
2799 # _do_ generate an interface; usually used as: -noC -hi
2800 /^-hi-with-(.*)$/ && do { $HiOnStdout = 1; $HiWith .= " $1" ; $ProduceHi = '-hifile='; next arg; };
2801 # limit ourselves to outputting a particular section.
2803 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
2804 # don't generate an interface (even if generating C)
2806 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
2807 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
2808 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
2809 /^-keep-hi-diffs$/ && do { $Keep_HiDiffs = 1; next arg; };
2811 # show/disable diffs if the interface file changes
2813 /^-E$/ && do { push(@CcBoth_flags, '-E');
2814 $Only_preprocess_C = 1;
2815 $Do_as = 0; $Do_lnkr = 0; next arg; };
2816 # stop after preprocessing C
2817 /^-M$/ && do { $Only_generate_deps = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2818 # only generate dependency information.
2819 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
2820 # stop after generating assembler
2822 /^-c$/ && do { $Do_lnkr = 0; next arg; };
2823 # stop after generating .o files
2825 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
2826 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
2827 # don't do consistency-checking after a link
2829 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', '');
2830 $Tmp_prefix = "$Tmp_prefix/ghc$$";
2831 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
2833 # use an alternate directory for temp files
2835 #---------- redirect output --------------------------------------------
2837 # -o <file>; applies to the last phase, whatever it is
2838 # "-o -" sends it to stdout
2839 # if <file> has a directory component, that dir must already exist
2841 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', '');
2843 # Hack, of the worst sort: don't do validation of
2844 # odir argument if you're using -M (dependency generation).
2846 if ( ! $Only_generate_deps && ! -d $Specific_output_dir) {
2847 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
2852 /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', '');
2853 if ($Specific_output_file ne '-'
2854 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
2855 local($dir_part) = $1;
2856 if (! -d $dir_part) {
2857 print STDERR "$Pgm: no such directory: $dir_part\n";
2863 # NB: -isuf not documented yet (because it doesn't work yet)
2864 /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', '');
2865 if ($Isuffix =~ /\./ ) {
2866 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
2871 /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', '');
2872 if ($Osuffix =~ /\./ ) {
2873 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
2878 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
2879 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', '');
2880 if ($Specific_hi_file ne '-'
2881 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
2882 local($dir_part) = $1;
2883 if (! -d $dir_part) {
2884 print STDERR "$Pgm: no such directory: $dir_part\n";
2890 # The suffix to use when looking for interface files
2891 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', '');
2892 if ($HiSuffix =~ /\./ ) {
2893 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
2897 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', '');
2898 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
2899 local($dir_part) = $1;
2900 if (! -d $dir_part) {
2901 print STDERR "$Pgm: no such directory: $dir_part\n";
2907 #-------------- scc & Profiling Stuff ----------------------------------
2909 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
2912 # generate auto SCCs on top level bindings
2913 # -auto-all = all top level bindings
2914 # -auto = only top level exported bindings
2915 $PROFauto = ( /-all/ )
2916 ? '-fauto-sccs-on-all-toplevs'
2917 : '-fauto-sccs-on-exported-toplevs';
2920 /^-caf-all/ && do { # generate individual CAF SCC annotations
2921 $PROFcaf = '-fauto-sccs-on-individual-cafs';
2924 /^-ignore-scc$/ && do {
2925 # forces ignore of scc annotations even if profiling
2926 $PROFignore_scc = '-W';
2929 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
2932 /^-unprof-scc-auto/ && do {
2933 # generate auto SCCs on top level bindings when not profiling.
2934 # Used to measure optimisation effects of presence of sccs.
2935 $UNPROFscc_auto = ( /-all/ )
2936 ? '-fauto-sccs-on-all-toplevs'
2937 : '-fauto-sccs-on-exported-toplevs';
2940 #--------- ticky/parallel ----------------------------------------------
2941 # we sort out the details a bit later on
2943 /^-gransim$/ && do { $GRANing = 'g'; &add_syslib('concurrent'); next arg; }; # GranSim
2944 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
2945 /^-parallel$/ && do { $PARing = 'p'; &add_syslib('concurrent'); next arg; }; # parallel Haskell
2947 #-------------- "user ways" --------------------------------------------
2949 (/^-user-setup-([a-oA-Z])$/ ) &&
2951 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
2953 local($stuff) = $UserSetupOpts{$BuildTag};
2954 local(@opts) = split(/\s+/, $stuff);
2956 # feed relevant ops into the arg-processing loop (if any)
2957 unshift(@Args, @opts) if $#opts >= 0;
2961 #---------- set search paths for libraries and things ------------------
2963 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
2964 # prepends the items to the list); -I is for including C .h files.
2966 /^-i$/ && do { @Import_dir = (); # import path cleared!
2967 @SysImport_dir = ();
2968 print STDERR "WARNING: import paths cleared by `-i'\n";
2971 /^-i(.*)/ && do { local(@new_items)
2972 = split( /:/, &grab_arg_arg(*Args,'-i', $1));
2973 unshift(@Import_dir, @new_items);
2976 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; };
2977 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; };
2978 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; };
2980 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1);
2981 &add_syslib($syslib);
2984 #=======================================================================
2985 # various flags that we can harmlessly send to one program or another
2986 # (we will later "reclaim" some of the compiler ones now sent to gcc)
2987 #=======================================================================
2989 #---------- this driver itself (ghc) -----------------------------------
2990 # these change what executable is run for each phase:
2991 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
2992 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
2993 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
2994 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
2995 /^-pgma(.*)$/ && do { $As = $1; next arg; };
2996 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
2997 /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; };
2999 #---------- the get-anything-through opts (all pgms) -------------------
3000 # these allow arbitrary option-strings to go to any phase:
3001 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
3002 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
3003 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
3004 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
3005 /^-optp(.*)$/ && do { push(@HsP_flags, $1); next arg; };
3006 /^-optcpp(.*)$/ && do { push(@Cpp_define, $1); $Only_preprocess_hc = ($1 eq "-E"); next arg; };
3007 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
3008 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
3009 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
3010 /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; };
3012 #---------- Haskell C pre-processor (hscpp) ----------------------------
3013 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; };
3014 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; };
3016 #---------- post-Haskell "assembler"------------------------------------
3017 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
3018 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
3020 #---------- Haskell compiler (hsc) -------------------------------------
3022 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
3023 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
3025 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
3027 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
3030 # have the compiler proper generate concurrent code,
3031 # really only used when you want to configure your own
3032 # special user compilation way.
3034 # (ditto for -fgransim, fscc-profiling, -fparallel and -fticky-ticky)
3036 /^-fscc-profiling$/ && do { push(@HsC_flags,$_); next arg; };
3037 /^-fticky-ticky$/ && do { push(@HsC_flags,$_); next arg; };
3038 /^-fgransim$/ && do { push(@HsC_flags,$_); next arg; };
3039 /^-fparallel$/ && do { push(@HsC_flags,$_); next arg; };
3041 /^-split-objs$/ && do {
3042 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|rs6000|sparc)-/ ) {
3044 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
3049 push(@HsC_flags, "-fglobalise-toplev-names");
3050 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
3052 require('ghc-split.prl')
3053 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
3057 /^-fno-asm-mangling$/ && do { $DoAsmMangling = 0; next arg; };
3059 /^-fallow-overlapping-instances$/ && do { push(@HsC_flags, $_); next arg; };
3060 /^-fallow-undecidable-instances$/ && do { push(@HsC_flags, $_); next arg; };
3062 && do { push(@HsC_flags, $_);
3063 push(@HsP_flags, '-N');
3065 # -fglasgow-exts implies -syslib exts
3066 &add_syslib('exts');
3071 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
3072 /^-fno-speciali[sz]e$/
3073 && do { $Oopt_DoSpecialise = ''; next arg; };
3076 # Now the foldr/build options, which are *on* by default (for -O).
3079 && do { $Oopt_FoldrBuild = 1;
3080 $Oopt_FB_Support = '-fdo-arity-expand';
3084 /^-fno-foldr-build$/
3085 && do { $Oopt_FoldrBuild = 0;
3086 $Oopt_FB_Support = '';
3089 /^-fno-foldr-build-rule$/
3090 && do { $Oopt_FoldrBuild = 0;
3093 /^-fno-enable-tech$/
3094 && do { $Oopt_FB_Support = '';
3097 /^-fno-snapback-to-append$/
3098 && do { $Oopt_FoldrBuildInline .= ' -fdo-not-fold-back-append ';
3101 # --------------- Renamer -------------
3104 /^-fno-prune-tydecls$/ && do { push(@HsC_flags, $_); next arg; };
3105 /^-fno-prune-instdecls$/ && do { push(@HsC_flags, $_); next arg; };
3109 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
3110 /^-fvia-[cC]$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
3115 && do { push(@HsC_flags, $_); next arg };
3117 /^-funfold-casms-in-hi-file$/
3118 && do { push(@HsC_flags, $_); next arg };
3120 /^(-fmax-simplifier-iterations)(.*)$/
3121 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2);
3124 /^-fno-pedantic-bottoms$/
3125 && do { $Oopt_PedanticBottoms = ''; next arg; };
3127 /^-fno-pre-inlining$/
3128 && do { push(@HsC_flags, $_); next arg };
3130 /^-fdo-monad-eta-expansion$/
3131 && do { $Oopt_MonadEtaExpansion = $_; next arg; };
3133 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
3134 && do { push(@HsC_flags, $_); next arg; };
3136 # --------------- Warnings etc. ------
3138 /^-fwarn-(.*)$/ && do { push(@HsC_flags, $_); next arg; };
3140 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
3141 &squashHscFlag("-f$1");
3144 /^-W$/ && do { push(@HsC_flags, @MinusWOpts); next arg; };
3145 /^-Wall$/ && do { push(@HsC_flags, @MinusWallOpts); next arg; };
3146 /^(-Wnot|w)$/ && do { foreach (@Hsc_flags) {
3147 /^-fwarn-(.*)$/ && do { $_=''; };
3149 push(@HsC_antiflags, @StandardWarnings);
3152 # --------------- fun stuff ----------------
3154 /^-freport-compile$/ && do { push(@HsC_flags, $_); next arg; };
3156 # --------------- platform specific flags (for gcc mostly) ----------------
3158 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes,
3159 # for 2.6.x..?, does not apply for 2.7.2
3161 unshift(@CcBoth_flags, ( $_ ));
3164 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
3165 && do { # for GCC for SPARCs
3166 unshift(@CcBoth_flags, ( $_ ));
3169 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
3170 $StolenX86Regs = $1;
3173 #*************** ... and lots of debugging ones (form: -d* )
3175 # -d(no-)core-lint is done this way so it is turn-off-able.
3176 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
3177 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
3178 # Ditto for STG lint
3179 /^-dstg-lint/ && do { $StgLint = '-dstg-lint'; next arg; };
3180 /^-dno-stg-lint/ && do { $StgLint = ''; next arg; };
3182 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
3183 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
3184 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
3185 /^-dshow-rn-stats/ && do { push(@HsC_flags, $_); next arg; };
3186 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
3187 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
3188 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
3189 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
3191 #*************** ... and now all these -R* ones for its runtime system...
3193 /^-Rscale-sizes?(.*)/ && do {
3194 $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1);
3197 /^(-H|-Rmax-heapsize)(.*)/ && do {
3198 local($heap_size) = &grab_arg_arg(*Args,$1, $2);
3199 if ($heap_size =~ /(\d+)[Kk]$/) {
3200 $heap_size = $1 * 1000;
3201 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
3202 $heap_size = $1 * 1000 * 1000;
3203 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
3204 $heap_size = $1 * 1000 * 1000 * 1000;
3206 if ($heap_size <= 0) {
3207 print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n";
3208 $Specific_heap_size = 0;
3210 # if several heap sizes given, take the largest...
3211 } elsif ($heap_size >= $Specific_heap_size) {
3212 $Specific_heap_size = $heap_size;
3214 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n";
3218 /^(-K|Rmax-(stk|stack)size)(.*)/ && do {
3220 local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3);
3221 if ($stk_size =~ /(\d+)[Kk]$/) {
3222 $stk_size = $1 * 1000;
3223 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
3224 $stk_size = $1 * 1000 * 1000;
3225 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
3226 $stk_size = $1 * 1000 * 1000 * 1000;
3228 if ($stk_size <= 0) {
3229 print STDERR "$Pgm: resetting stack-size to zero!!! $stk_size\n";
3230 $Specific_stk_size = 0;
3232 # if several stack sizes given, take the largest...
3233 } elsif ($stk_size >= $Specific_stk_size) {
3234 $Specific_stk_size = $stk_size;
3236 print STDERR "$Pgm: ignoring stack-size-setting option ($flag $stk_size)...not the largest seen\n";
3240 /^-Rgc-stats$/ && do { $CollectingGCstats++;
3241 # the two RTSs do this diff ways; we will try to compensate
3244 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
3246 #---------- C high-level assembler (gcc) -------------------------------
3247 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
3249 # -dgcc-lint is a useful way of making GCC very fussy.
3250 # From alan@spri.levels.unisa.edu.au (Alan Modra).
3251 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
3252 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
3253 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
3255 # inject "#include <wurble>" into the compiler's C output!
3257 /^-#include(.*)/ && do {
3258 local($to_include) = &grab_arg_arg(*Args,'-#include', $1);
3259 push(@CcInjects, "#include $to_include\n");
3262 #---------- Linker (gcc, really) ---------------------------------------
3264 /^-static$/ && do { push(@HsC_flags, $_); push(@Ld_flags, $_); next arg; };
3265 /^-no-hs-main$/ && do { $NoHaskellMain=1; next arg; };
3267 #---------- mixed cc and linker magic ----------------------------------
3268 # this optimisation stuff is finally sorted out later on...
3270 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
3272 /^-O[1-2]?$/ && do {
3273 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
3274 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
3276 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
3279 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
3281 /^-Ofile(.*)/ && do {
3283 local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1);
3284 @HsC_minusO3_flags = ();
3286 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
3289 s/\#.*//; # death to comments
3290 s/[ \t]+//g; # death to whitespace
3291 next if /^$/; # ditto, blank lines
3292 s/([()*{}])/\\$1/g; # protect shell metacharacters
3294 push(@CcBoth_flags, $1);
3296 push(@HsC_minusO3_flags, $_);
3302 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
3303 # in the consistency info
3307 #---------- linking .a file --------------------------------------------
3309 /^-Main(.*)/ && do {
3310 # specifies main or mainPrimIO to be linked
3314 #---------- catch unrecognized flags -----------------------------------
3317 print STDERR "$Pgm: unrecognised option: $_\n";
3323 } # end of processArgs