2 % (c) The GRASP/AQUA Project, Glasgow University, 1992-1997
5 This is the driver script for the Glasgow Haskell compilation system.
6 It is written in \tr{perl}. The first section includes a long
7 ``usage'' message that describes how the driver is supposed to work.
9 %************************************************************************
11 \section[Driver-usage]{Usage message}
13 %************************************************************************
16 ($Pgm = $0) =~ s|.*/||;
17 $ShortUsage = "\nUsage: For basic information, try the `-help' option.\n";
18 $LongUsage = "\n" . <<EOUSAGE;
19 Use of the Glorious Haskell Compilation System driver:
21 $Pgm [command-line-options-and-input-files]
23 ------------------------------------------------------------------------
24 This driver ($Pgm) guides each input file through (some of the)
25 possible phases of a compilation:
27 - unlit: extract code from a "literate program"
28 - hscpp: run code through the C pre-processor (if -cpp flag given)
29 - hsc: run the Haskell compiler proper
30 - gcc: run the C compiler (if compiling via C)
31 - as: run the assembler
34 For each input file, the phase to START with is determined by the
36 - .lhs literate Haskell: unlit
37 - .hs illiterate Haskell: hsc
38 - .hc C from the Haskell compiler: gcc
39 - .c C not from the Haskell compiler: gcc
40 - .s assembly language: as
41 - other passed directly to the linker: ld
43 If no files are given on the command line, input is taken from
44 standard input, and processing is as for an .hs file. (All output is
45 to stdout or stderr, however).
47 The phase at which to STOP processing is determined by a command-line
49 -E stop after generating preprocessed, de-litted Haskell (used in conjunction with -cpp)
50 -C stop after generating C (.hc output)
51 -S stop after generating assembler (.s output)
52 -c stop after generating object files (.o output)
54 Other commonly-used options are:
56 -O An `optimising' package of compiler flags, for faster code
58 -prof Compile for cost-centre profiling
59 (add -auto for automagic cost-centres on top-level functions)
61 -fglasgow-exts Allow Glasgow extensions (unboxed types, etc.)
63 -H14m Increase compiler's heap size
65 -M Output the Makefile rules recording the
66 dependencies of a list of Haskell files.
67 (ghc driver script calls upon the help of a
68 compatible mkdependHS script to do the actual
71 The User's Guide has more information about GHC's *many* options.
73 Given the above, here are some TYPICAL invocations of $Pgm:
75 # compile a Haskell module to a .o file, optimising:
77 # link three .o files into an executable called "test":
78 % $Pgm -o test Foo.o Bar.o Baz.o
79 # compile a Haskell module to C (a .hc file), using a bigger heap:
80 % $Pgm -C -H16m Foo.hs
81 # compile Haskell-produced C (.hc) to assembly language:
83 ------------------------------------------------------------------------
87 %************************************************************************
89 \section[Driver-init]{Initialisation}
91 %************************************************************************
93 The driver script need to be told where to find these executables, so
94 in the course of building the driver `executable', make-variables holding
95 these are prepended to the de-litted version of this file. The variables are:
100 HOSTPLATFORM TARGETPLATFORM
102 ProjectName ProjectVersion ProjectVersionInt ProjectPatchLevel
106 bindir libdir libexecdir datadir
110 GHC_LIB_DIR GHC_RUNTIME_DIR GHC_UTILS_DIR GHC_INCLUDE_DIR
112 GHC_OPT_HILEV_ASM GhcWithNativeCodeGen
114 GHC_UNLIT GHC_HSCPP GHC_HSC GHC_SYSMAN
118 WAY_*_NAME WAY_*_HC_OPTS
124 Establish what executables to run for the various phases, what the
125 default options are for those phases, and other similar boring stuff.
128 select(STDERR); $| = 1; select(STDOUT); # no STDERR buffering, please.
130 $TargetPlatform = $TARGETPLATFORM;
132 $TopPwd = "${TOP_PWD}";
133 $InstBinDirGhc = "${bindir}";
134 $InstLibDirGhc = "${libdir}";
136 # Normally the same as InstLibDirGhc, but we accommodate
137 # for it being separate.
139 $InstLibExecDirGhc = "${libexecdir}";
140 $InstDataDirGhc = "${datadir}";
142 $Status = 0; # just used for exit() status
145 # set up signal handler
146 sub quit_upon_signal { &tidy_up_and_die(1, ''); }
147 $SIG{'INT'} = 'quit_upon_signal';
148 $SIG{'QUIT'} = 'quit_upon_signal';
150 # where to get "require"d .prl files at runtime (poor man's dynamic loading)
151 # (use LIB, not DATA, because we can't be sure of arch-independence)
152 @INC = ( ( $INSTALLING ) ? $InstLibDirGhc
153 : "$TopPwd/${CURRENT_DIR}" );
155 if ( $ENV{'TMPDIR'} ) { # where to make tmp file names
156 $Tmp_prefix = ($ENV{'TMPDIR'} . "/ghc$$");
158 print STDERR "TMPDIR has not been set to anything useful!\n" if (${TMPDIR} eq '');
159 $Tmp_prefix ="${TMPDIR}/ghc$$"; # TMPDIR set via Makefile when booting..
160 $ENV{'TMPDIR'} = ${TMPDIR}; # set the env var as well
163 # Some shells run into real trouble when command line and environment
164 # gets big (e.g., cmd lines of >4K to /bin/sh causes havoc on our
165 # Solaris-2.5.1 boxes - even though sysconf(_SC_ARG_MAX) reports 1M ...).
166 # To work around any such */bin/sh* problems, we will scribble such
167 # awfully long command lines into a temp file and exec that temp file
168 # with $(REAL_SHELL) (don't use the SHELL variable directly as this
169 # will normally get you the wrong thing when the driver is invoked
170 # from within `make'). If the REAL_SHELL variable isn't set, you'll
171 # get SHELL. This is all a terrible hack. (in case you hadn't reached
172 # the same conclusion by now :-)
176 if ( ! $ENV{'REAL_SHELL'} ) {
177 $ENV{'REAL_SHELL'} = $ENV{'SHELL'};
180 @Files_to_tidy = (); # files we nuke in the case of abnormal termination
182 $Unlit = ( $INSTALLING ) ? "$InstLibExecDirGhc/unlit"
183 : "$TopPwd/${CURRENT_DIR}/${GHC_UNLIT}";
187 $Diff = $CONTEXT_DIFF;
192 $HsCpp = # but this is re-set to "cat" (after options) if -cpp not seen
193 ( $INSTALLING ) ? "$InstLibExecDirGhc/hscpp"
194 : "$TopPwd/${CURRENT_DIR}/${GHC_HSCPP}";
197 $genSPECS_flag = ''; # See ../utils/hscpp/hscpp.prl
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_UnfoldingUseThreshold = '-fsimpl-uf-use-threshold3';
225 $Oopt_MaxSimplifierIterations = '-fmax-simplifier-iterations4';
226 $Oopt_PedanticBottoms = '-fpedantic-bottoms'; # ON by default
227 $Oopt_MonadEtaExpansion = '';
228 $Oopt_FinalStgProfilingMassage = '';
230 $Oopt_SpecialiseUnboxed = '';
231 $Oopt_DoSpecialise = '-fspecialise';
232 $Oopt_FoldrBuild = 0; # *Off* by default!
233 $Oopt_FB_Support = ''; # was '-fdo-arity-expand';
234 # $Oopt_FoldrBuildWW = 0; # Off by default
235 $Oopt_FoldrBuildInline = ''; # was '-fdo-inline-foldr-build';
236 $Oopt_ShowSimplifierProgress = '';
237 } # end of setupOptFlags
239 # Assign defaults to these right away.
243 Things to do with C compilers/etc:
245 $CcRegd = $GHC_OPT_HILEV_ASM;
246 @CcBoth_flags = ('-S'); # flags for *any* C compilation
250 # those for all files,
251 # those only for .c files;
252 # those only for .hc files
254 @CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__');
255 @CcRegd_flags_c = ();
256 @CcRegd_flags_hc = ();
258 $As = ''; # "assembler" is normally GCC
261 $Lnkr = ''; # "linker" is normally GCC
264 # 'nm' is used for consistency checking (ToDo: mk-world-ify)
265 # ToDo: check the OS or something ("alpha" is surely not the crucial question)
266 $Nm = ($TargetPlatform =~ /^alpha-/) ? 'nm -B' : 'nm';
269 Warning packages that are controlled by -W and -Wall. The 'standard'
270 warnings that you get all the time are
272 -fwarn-overlapping-patterns
273 -fwarn-missing-methods
274 -fwarn-duplicate-exports
276 these are turned off by -Wnot.
279 @StandardWarnings = ('-fwarn-overlapping-patterns',
280 '-fwarn-missing-methods',
281 '-fwarn-duplicate-exports');
282 @MinusWOpts = (@StandardWarnings,
283 '-fwarn-incomplete-patterns',
284 '-fwarn-unused-binds',
285 '-fwarn-unused-imports');
286 @MinusWallOpts = (@MinusWOpts,
287 '-fwarn-unused-matches',
288 '-fwarn-name-shadowing');
291 What options \tr{-user-setup-a} turn into (user-defined ``packages''
293 of options). Note that a particular user-setup implies a particular
294 Prelude ({\em including} its interface file(s)).
296 $BuildTag = ''; # default is sequential build w/ Appel-style GC
298 %BuildDescr = (# system ways begin
299 '', 'normal sequential',
303 '_mc', "$WAY_mc_NAME",
304 '_mr', "$WAY_mr_NAME",
305 '_mt', "$WAY_mt_NAME",
306 '_mp', "$WAY_mp_NAME",
307 '_mg', "$WAY_mg_NAME",
308 '_2s', "$WAY_2s_NAME",
309 '_1s', "$WAY_1s_NAME",
310 '_du', "$WAY_du_NAME",
328 '_B', "$WAY_B_NAME" );
330 # these are options that are "fed back" through the option processing loop
334 '_a', "$WAY_a_HC_OPTS",
335 '_b', "$WAY_b_HC_OPTS",
336 '_c', "$WAY_c_HC_OPTS",
337 '_d', "$WAY_d_HC_OPTS",
338 '_e', "$WAY_e_HC_OPTS",
339 '_f', "$WAY_f_HC_OPTS",
340 '_g', "$WAY_g_HC_OPTS",
341 '_h', "$WAY_h_HC_OPTS",
342 '_i', "$WAY_i_HC_OPTS",
343 '_j', "$WAY_j_HC_OPTS",
344 '_k', "$WAY_k_HC_OPTS",
345 '_l', "$WAY_l_HC_OPTS",
346 '_m', "$WAY_m_HC_OPTS",
347 '_n', "$WAY_n_HC_OPTS",
348 '_o', "$WAY_o_HC_OPTS",
349 '_A', "$WAY_A_HC_OPTS",
350 '_B', "$WAY_B_HC_OPTS",
353 '_p', "$WAY_p_HC_OPTS",
354 '_t', "$WAY_t_HC_OPTS",
355 '_u', "$WAY_u_HC_OPTS",
356 '_mc', "$WAY_mc_HC_OPTS",
357 '_mr', "$WAY_mr_HC_OPTS",
358 '_mt', "$WAY_mt_HC_OPTS",
359 '_mp', "$WAY_mp_HC_OPTS",
360 '_mg', "$WAY_mg_HC_OPTS",
361 '_2s', "$WAY_2s_HC_OPTS",
362 '_1s', "$WAY_1s_HC_OPTS",
363 '_du', "$WAY_B_HC_OPTS" );
367 Import/include directories (\tr{-I} options) are sufficiently weird to
368 require special handling.
371 @Import_dir = ('.'); #-i things
372 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
374 # where to look for interface files (system hi's, i.e., prelude and syslibs)
375 @SysImport_dir = ( $INSTALLING )
376 ? ( "$InstLibDirGhc/imports/std" )
377 : ( "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std" );
379 # We need to look in ghc/ and glaExts/ when searching for implicitly needed .hi files, but
380 # we should really *not* look there for explicitly imported modules.
382 $GhcVersionInfo = $ProjectVersionInt;
383 $Haskell1Version = 4; # i.e., Haskell 1.4
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
400 = ( $INSTALLING) ? "$InstLibDirGhc/TopClosureXXXX.o"
401 : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/main/TopClosureXXXX.o";
403 # make depend for Haskell
405 = ( $INSTALLING ) ? "$InstBinDirGhc/mkdependHS"
406 : "$TopPwd/$CURRENT_DIR/$GHC_UTILS_DIR/mkdependHS/mkdependHS";
408 @MkDependHS_flags = ();
410 # do_link flag should not be reset while rescanning the cmd-line.
412 $Specific_output_dir = ''; # set by -odir <dir>
413 $Specific_output_file = ''; # set by -o <file>; "-" for stdout
416 Function to initialise the per-compilation-unit globals that
417 are used to guide and control the invocation of the different phases.
420 sub initDriverGlobals {
422 # reset the following options:
423 # RTS flags to use while compiling
425 @HsP_flags = (); # these are the flags destined solely for
426 # the flex/yacc parser
431 The optimisations/etc to be done by the compiler are {\em normally}
432 expressed with a \tr{-O} (or \tr{-O2}) flag, or by its absence.
435 $OptLevel = 0; # no -O == 0; -O == 1; -O2 == 2; -Ofile == 3
436 $MinusO2ForC = 0; # set to 1 if -O2 should be given to C compiler
437 $StolenX86Regs = 4; # **HACK*** of the very worst sort
441 @CcBoth_flags = ('-S'); # flags for *any* C compilation
444 # GCC flags: those for all files, those only for .c files; those only for .hc files
445 @CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__');
446 @CcRegd_flags_c = ();
447 @CcRegd_flags_hc = ();
449 @Import_dir = ('.'); #-i things
450 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
455 We are given a list of files with various presumably-known suffixes
456 (unknown-suffix files go straight to the linker). For each file, we
457 begin by assuming that we'll run every phase over it. However: (1)
458 global flags (\tr{-c}, \tr{-S}, etc.) tell us not to run any phase
459 past a certain point; and (2) the file's suffix tells us what phase to
460 start with. Linking is weird and kept track of separately.
462 Here are the initial defaults applied to all files:
464 $Cpp_flag_set = 0; # (hack)
465 $Only_preprocess_C = 0; # pretty hackish
466 $Only_preprocess_hc = 0; # ditto
467 $Only_generate_deps = 0; # "
468 $PostprocessCcOutput = 0;
470 # native code-gen or via C?
471 $HaveNativeCodeGen = $GhcWithNativeCodeGen;
472 $HscOut = '-C='; # '-C=' ==> .hc output; '-S=' ==> .s output; '-N=' ==> neither
474 if $HaveNativeCodeGen && $TargetPlatform =~ /^(alpha|sparc)-/;
475 # TEMP: disable x86 if $HaveNativeCodeGen && $TargetPlatform =~ /^(i386|alpha|sparc)-/;
476 $ProduceHi = '-hifile=';
482 $CollectingGCstats = 0;
483 $CollectGhcTimings = 0;
484 $DEBUGging = ''; # -DDEBUG and all that it entails (um... not really)
485 $PROFing = ''; # set to p or e if profiling
486 $PROFgroup = ''; # set to group if an explicit -Ggroup specified
487 $PROFauto = ''; # set to relevant hsc flag if -auto or -auto-all
488 $PROFcaf = ''; # set to relevant hsc flag if -caf-all
489 $PROFignore_scc = ''; # set to relevant parser flag if explicit sccs ignored
490 $UNPROFscc_auto = ''; # set to relevant hsc flag if forcing auto sccs without profiling
491 $TICKYing = ''; # set to t if compiling for ticky-ticky profiling
492 $PARing = ''; # set to p if compiling for PAR
493 $CONCURing = ''; # set to c if compiling for CONCURRENT
494 $GRANing = ''; # set to g if compiling for GRAN
495 $StkChkByPageFaultOK = 1; # may be set to 0 (false) for some builds
496 $Specific_hi_file = ''; # set by -ohi <file>; "-" for stdout
497 $Specific_dump_file = ''; # set by -odump <file>; "-" for stdout
498 $Using_dump_file = 0;
500 $Osuffix = ''; # default: use the normal suffix for that kind of output
502 $HiSuffix_prelude = '';
503 $Do_recomp_chkr = 0; # don't use the recompilatio checker unless asked
504 $Do_cc = -1; # a MAGIC indeterminate value; will be set to 1 or 0.
507 $Keep_hc_file_too = 0;
508 $Keep_s_file_too = 0;
509 $UseGhcInternals = 0; # if 1, may use GHC* modules
512 $Dump_parser_output = 0;
514 $Dump_asm_splitting_info = 0;
515 $NoImplicitPrelude = 0;
518 } # end of initDriverGlobals (Sigh)
520 # we split the argv passed to the driver into three:
525 # and files to be linked...
531 # cmd line options prefixing the unit we're compiling
536 We inject consistency-checking information into \tr{.hc} files (both
537 when created by the Haskell compiler and when compiled by the C
538 compiler), so that we can check that an executable is made from
539 consistently-built pieces. (The check is normally done just after
540 linking.) The checking is done by introducing/munging
541 \tr{what(1)}-style strings. Anyway, here are the relevant global
542 variables and their defaults:
544 $LinkChk = 1; # set to 0 if the link check should *not* be done
546 # major & minor version numbers; major numbers must always agree;
547 # minor disagreements yield a warning.
548 $HsC_major_version = 33;
549 $HsC_minor_version = 0;
550 $Cc_major_version = 36;
551 $Cc_minor_version = 1;
553 # options: these must always agree
554 $HsC_consist_options = ''; # we record, in this order:
555 # Build tag; debugging?
556 $Cc_consist_options = ''; # we record, in this order:
557 # Build tag; debugging?
560 %************************************************************************
562 \section[Driver-parse-argv]{Munge the command-line options}
564 %************************************************************************
566 Now slurp through the arguments.
569 &initDriverGlobals();
570 &splitCmdLine(@ARGV);
571 # Run through the cmd-line first time.
572 &processArgs(@Cmd_opts);
574 # Check to see if driver is only in the business
575 # to generate dependencies
576 if ( $Status == 0 && $Only_generate_deps ) {
578 push (@MkDependHS_flags, "-o$Osuffix") if $Osuffix;
579 push (@MkDependHS_flags, "-s$BuildTag") if $BuildTag;
580 push (@MkDependHS_flags, "-D__HASKELL1__=$Haskell1Version");
581 # They're not (currently) needed, but we need to quote any -#include options
582 foreach (@Cmd_opts) {
583 s/-#include.*$/'$&'/g;
585 local($to_do) = "$MkDependHS @MkDependHS_flags -- @Cmd_opts -- @Input_file" ;
586 &run_something($to_do, 'Haskell dependencies');
590 # if there are several input files,
591 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
592 # (except if linking, of course)
594 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
595 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
596 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
597 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
598 print STDERR "\tPerhaps the -odir option will do what you want.\n";
603 # check for various pathological -o and -odir combinations...
604 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
605 if ($Specific_output_file eq '-') {
606 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
608 } else { # amalgamate...
609 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
610 # ToDo: check we haven't got a junk name now...
611 $Specific_output_dir = ''; # reset
615 # crash and burn if there were errors
617 print STDERR $ShortUsage;
622 %************************************************************************
624 \section[Driver-post-argv-mangling]{Setup after reading options}
626 %************************************************************************
628 %************************************************************************
630 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
632 %************************************************************************
634 We come now to the default ``wads of options'' that are turned on by
635 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
636 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
639 The user can also specify his/her own list of options in a file; in
640 that case, the work is already done (see stuff about @minusO3@,
643 GHC allows very precise control of what happens during a compilation.
644 Core-to-Core and STG-to-STG passes can be run in any order, as many
645 times as you like. Individual transformations can be turned on or
648 Sadly, however, there are some interdependencies \& Things You Must
649 Not Do. Here is the list.
653 \item[\tr{-fspecialise}:]
654 The specialiser must have dependency-analysed input; but if you run
655 the simplifier to do this, you must not let it toss away unused
656 bindings! (The typechecker conveys some specialisation info via
657 ``unused'' bindings...)
659 \item[\tr{-ffloat-inwards}:]
660 Floating inwards should be done before strictness analysis, because
661 the latter will give better results.
663 \item[\tr{-fstatic-args}:]
664 The static-arguments-transformation pass {\em must} have the
665 simplifier run right after it.
667 \item[\tr{-fcalc-inlinings[12]}:]
668 Not required, but there may be slight gains by re-simplifying after
669 this is done. (You could then \tr{-fcalc-inlinings} again, just for
672 \item[\tr{-ffull-laziness}:]
673 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
674 that's run. (Um, well, howzabout the simplifier just once more...)
679 \item[\tr{-fupdate-analysis}:]
680 It really really wants to be the last STG-to-STG pass that is run.
685 sub setupOptimiseFlags {
691 '-ffloat-lets-exposing-whnf',
692 '-ffloat-primops-ok',
695 # '-fdo-lambda-eta-expansion', # too complicated
697 # '-flet-to-case', # no strictness analysis, so...
698 $Oopt_PedanticBottoms,
699 # $Oopt_MonadEtaExpansion, # no thanks
701 # These two work fine, if you really want no simplification at all,
702 # for bizarre test reasons. But you get really terrible code if you use them,
703 # for example: let x = e in x
704 # with dozens of redundant thunks etc. So I'm leaving them out.
706 # '-fsimpl-uf-use-threshold0',
707 # '-fessential-unfoldings-only',
709 $Oopt_UnfoldingUseThreshold,
710 $Oopt_MaxSimplifierIterations,
711 $Oopt_ShowSimplifierProgress,
714 # '-ffull-laziness', # removed 95/04 WDP following Andr\'e's lead
716 $Oopt_FinalStgProfilingMassage
719 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
721 '-fdo-eta-reduction',
723 # initial simplify: mk specialiser happy: minimum effort please
727 '-fkeep-spec-pragma-ids', # required before specialisation
729 # I don't understand why we want -fessential-unfoldings-only here
730 # If we have it, the following nasty thing happens:
734 # where "*" means exported.
735 # In the essential-unfoldings pass we still substitute f for g
736 # but we don't substitute E for f first. So we get
740 # The g=f will get reverse-substituted later, but it's untidy.
742 # '-fessential-unfoldings-only',
743 # '-fsimpl-uf-use-threshold0',
745 '-fmax-simplifier-iterations1',
746 $Oopt_PedanticBottoms,
749 ($Oopt_DoSpecialise) ? (
750 '-fspecialise-overloaded',
751 $Oopt_SpecialiseUnboxed,
755 '-fsimplify', # need dependency anal after specialiser ...
756 '[', # need tossing before calc-inlinings ...
758 '-ffloat-lets-exposing-whnf',
759 '-ffloat-primops-ok',
763 # '-fdo-eta-reduction',
764 '-fdo-lambda-eta-expansion',
766 $Oopt_PedanticBottoms,
767 $Oopt_MonadEtaExpansion,
768 $Oopt_UnfoldingUseThreshold,
769 $Oopt_MaxSimplifierIterations,
770 $Oopt_ShowSimplifierProgress,
772 # The presence of -fclone-binds is *crucial* here as
773 # -ffull-laziness (which we're about to do next) floats
774 # bindings outwards, so we better make sure that this
775 # doesn't result in the floating out of bindings
776 # with identical uniques, i.e., -ffull-laziness needs
777 # to be preceeded by a simplifier pass with -fclone-binds
782 #LATER: '-fcalc-inlinings1', -- pointless for 2.01
784 # ($Oopt_FoldrBuildWW) ? (
785 # '-ffoldr-build-ww-anal',
786 # '-ffoldr-build-worker-wrapper',
790 # '-ffloat-lets-exposing-whnf',
791 # '-ffloat-primops-ok',
795 # '-fdo-eta-reduction',
796 # '-fdo-lambda-eta-expansion',
798 # $Oopt_PedanticBottoms,
799 # $Oopt_MonadEtaExpansion,
800 # $Oopt_UnfoldingUseThreshold,
801 # $Oopt_MaxSimplifierIterations,
802 # $Oopt_ShowSimplifierProgress,
806 # this pass-ordering sequence was agreed by Simon and Andr\'e
807 # (WDP 94/07, 94/11).
810 ($Oopt_FoldrBuild) ? (
811 '-ffoldr-build-on', # desugar list comprehensions for foldr/build
815 '-fignore-inline-pragma', # **** NB!
816 '-fdo-foldr-build', # NB
818 '-ffloat-lets-exposing-whnf',
819 '-ffloat-primops-ok',
823 # '-fdo-eta-reduction',
824 '-fdo-lambda-eta-expansion', # After full laziness
826 $Oopt_PedanticBottoms,
827 $Oopt_MonadEtaExpansion,
828 $Oopt_UnfoldingUseThreshold,
829 $Oopt_MaxSimplifierIterations,
830 $Oopt_ShowSimplifierProgress,
839 '-ffloat-lets-exposing-whnf',
840 '-ffloat-primops-ok',
844 '-fdo-eta-reduction',
845 '-fdo-lambda-eta-expansion',
847 ($Oopt_FoldrBuildInline),
848 # you need to inline foldr and build
849 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
850 # but do reductions if you see them!
851 $Oopt_PedanticBottoms,
852 $Oopt_MonadEtaExpansion,
853 $Oopt_UnfoldingUseThreshold,
854 $Oopt_MaxSimplifierIterations,
855 $Oopt_ShowSimplifierProgress,
863 '-ffloat-lets-exposing-whnf',
864 '-ffloat-primops-ok',
868 # '-fdo-eta-reduction',
869 '-fdo-lambda-eta-expansion',
871 '-flet-to-case', # Aha! Only done after strictness analysis
872 $Oopt_PedanticBottoms,
873 $Oopt_MonadEtaExpansion,
874 $Oopt_UnfoldingUseThreshold,
875 $Oopt_MaxSimplifierIterations,
876 $Oopt_ShowSimplifierProgress,
881 # Case-liberation for -O2. This should be after
882 # strictness analysis and the simplification which follows it.
886 # : "-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_UnfoldingUseThreshold $Oopt_MaxSimplifierIterations $Oopt_ShowSimplifierProgress ]" ),
888 # Final clean-up simplification:
893 '-ffloat-lets-exposing-whnf',
894 '-ffloat-primops-ok',
898 # '-fdo-eta-reduction',
899 '-fdo-lambda-eta-expansion',
902 '-fignore-inline-pragma', # **** NB!
903 $Oopt_FoldrBuildInline,
904 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
905 # but still do reductions if you see them!
906 $Oopt_PedanticBottoms,
907 $Oopt_MonadEtaExpansion,
908 $Oopt_UnfoldingUseThreshold,
909 $Oopt_MaxSimplifierIterations,
910 $Oopt_ShowSimplifierProgress,
915 #LATER: '-fcalc-inlinings2', -- pointless for 2.01
919 $Oopt_FinalStgProfilingMassage,
925 # SPECIAL FLAGS for -O2
927 '-fupdate-analysis', # virtually useless; relegated to -O2
934 Sort out what we're going to do about optimising. First, the @hsc@
935 flags and regular @cc@ flags to worry about:
937 if ( $OptLevel <= 0 ) {
939 # for this level, we tell the parser -fignore-interface-pragmas
940 push(@HsC_flags, '-fignore-interface-pragmas');
941 # and tell the compiler not to produce them
942 push(@HsC_flags, '-fomit-interface-pragmas');
944 &add_Hsc_flags( @HsC_minusNoO_flags );
945 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
947 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
949 &add_Hsc_flags( @HsC_minusO_flags );
950 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
951 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
952 # but it *is* useful in compiling the garbage collectors (so said
953 # Patrick many moons ago...).
955 } else { # -Ofile, then...
957 &add_Hsc_flags( @HsC_minusO3_flags );
958 push(@HsC_flags, $Oopt_FinalStgProfilingMassage) if $Oopt_FinalStgProfilingMassage;
960 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
963 } # setupOptimiseFlags
967 %************************************************************************
969 \subsection{Check for consistency, etc.}
971 %************************************************************************
973 Sort out @$BuildTag@, @$PROFing@, @$CONCURing@, @$PARing@,
974 @$GRANing@, @$TICKYing@:
976 sub setupBuildFlags {
979 # PROFILING stuff after argv mangling:
981 # warn about any scc exprs found (in case scc used as identifier)
982 push(@HsP_flags, '-W');
984 # add -auto sccs even if not profiling !
985 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
988 push(@HsC_flags, $PROFauto) if $PROFauto;
989 push(@HsC_flags, $PROFcaf) if $PROFcaf;
990 #push(@HsC_flags, $PROFdict) if $PROFdict;
992 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
994 # Ignore user sccs when auto annotating, but warn when doing so.
995 $PROFignore_scc = '-W' if $PROFauto;
997 push(@HsP_flags, (($PROFignore_scc) ? $PROFignore_scc : '-S'));
999 if ( $SplitObjFiles ) {
1000 # can't split with cost centres -- would need global and externs
1001 print STDERR "$Pgm: WARNING: splitting objects when profiling will *BREAK* if any _scc_s are present!\n";
1002 # (but it's fine if there aren't any _scc_s around...)
1003 # $SplitObjFiles = 0; # unset
1004 #not an error: for now: $Status++;
1007 #if ( $BuildTag ne '' ) {
1008 # local($b) = $BuildDescr{$BuildTag};
1009 # if ($CONCURing eq 'c') { print STDERR "$Pgm: Can't mix $b with -concurrent.\n"; exit 1; }
1010 # if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
1011 # if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
1012 # if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
1014 # # ok to have a user-way profiling build
1015 # # eval the profiling opts ... but leave user-way BuildTag
1016 # if ($PROFing eq 'p') { &processArgs(split(' ', $SetupOpts{'_p'})); } # eval($EvaldSetupOpts{'_p'}); }
1018 if ( $PROFing eq 'p' ) {
1019 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
1020 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
1021 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
1022 $BuildTag = ($CONCURing eq 'c') ? '_mr' : '_p' ; # possibly "profiled concurrent"...
1024 } elsif ( $CONCURing eq 'c' ) {
1025 if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix -concurrent with -parallel.\n"; exit 1; }
1026 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -concurrent with -gransim.\n"; exit 1; }
1027 $BuildTag = ($TICKYing eq 't') ? '_mt' : '_mc' ; # possibly "ticky concurrent"...
1028 # "profiled concurrent" already acct'd for...
1030 } elsif ( $PARing eq 'p' ) {
1031 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
1032 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
1035 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
1036 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
1040 } elsif ( $GRANing eq 'g' ) {
1041 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
1044 } elsif ( $TICKYing eq 't' ) {
1050 After the sanity checks, add flags to the necessary parts of the driver pipeline:
1053 if ( $BuildTag ne '' ) { # something other than normal sequential...
1055 local($Tag) = "${BuildTag}";
1056 $Tag =~ s/_//; # move the underscore to the back
1058 $HscOut = '-C='; # must go via C
1059 &processArgs(split(' ', $SetupOpts{$BuildTag}));
1060 # eval($EvaldSetupOpts{$BuildTag});
1064 Decide what the consistency-checking options are in force for this run:
1067 $HsC_consist_options = "${BuildTag},${DEBUGging}";
1068 $Cc_consist_options = "${BuildTag},${DEBUGging}";
1071 # Funny place to put it, but why not.
1073 if ( $HiSuffix_prelude eq '' ) {
1074 local($Tag) = "${BuildTag}";
1076 $Tag = "${Tag}_" if $Tag ne '';
1077 $HiSuffix_prelude="${Tag}hi";
1079 #push(@HsC_flags, "-hisuf-prelude=.${HiSuffix_prelude}"); # use appropriate Prelude .hi files
1080 #push(@HsC_flags, "-hisuf=.${HiSuffix}");
1085 %************************************************************************
1087 \subsection{Add on machine-specific C-compiler flags}
1089 %************************************************************************
1091 Shove on magical machine-specific options. We use \tr{unshift} to
1092 stick them on the {\em front} of the arrays, so that ``later''
1093 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
1095 Note: a few ``always apply'' flags were set at the very beginning.
1100 if ($TargetPlatform =~ /^alpha-/) {
1101 # we know how to *mangle* asm for alpha
1102 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1103 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1104 unshift(@CcBoth_flags, ('-static'));
1106 } elsif ($TargetPlatform =~ /^hppa/) {
1107 # we know how to *mangle* asm for hppa
1108 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1109 unshift(@CcBoth_flags, ('-static'));
1111 # We don't put in '-mlong-calls', because it's only
1112 # needed for very big modules (sigh), and we don't want
1113 # to hobble ourselves further on all the other modules
1116 # [Dated comment (gcc-2.6.x?), -mlong-calls is no longer
1117 # a supported gcc HPPA flag]
1118 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
1119 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
1120 # (very nice, but too bad the HP /usr/include files don't agree.)
1122 } elsif ($TargetPlatform =~ /^i386-/) {
1123 # we know how to *mangle* asm for X86
1124 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1125 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK && $TargetPlatform !~ /nextstep/;
1126 # I do not know how to do STACK_CHECK_BY_PAGE_FAULT
1127 # on NeXTs (my fault, not theirs), so I don't.
1130 # -fno-defer-pop : basically the same game as for m68k
1132 # -fomit-frame-pointer : *must* ; because we're stealing
1133 # the fp (%ebp) for our register maps. *All* register
1134 # maps (in MachRegs.lh) must steal it.
1136 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1137 unshift(@CcRegd_flags, '-fomit-frame-pointer');
1138 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1140 } elsif ($TargetPlatform =~ /^m68k-/) {
1141 # we know how to *mangle* asm for m68k
1142 unshift (@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1143 unshift (@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK && $TargetPlatform !~ /nextstep/;
1144 # I do not know how to do STACK_CHECK_BY_PAGE_FAULT
1145 # on NeXTs (my fault, not theirs), so I don't.
1148 # -fno-defer-pop : for the .hc files, we want all the pushing/
1149 # popping of args to routines to be explicit; if we let things
1150 # be deferred 'til after an STGJUMP, imminent death is certain!
1152 # -fomit-frame-pointer : *don't*
1153 # It's better to have a6 completely tied up being a frame pointer
1154 # rather than let GCC pick random things to do with it.
1155 # (If we want to steal a6, then we would try to do things
1156 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1158 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1159 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1160 # maybe gives reg alloc a better time
1161 # also: -fno-defer-pop is not sufficiently well-behaved without it
1163 } elsif ($TargetPlatform =~ /^mips-/) {
1164 # we (hope to) know how to *mangle* asm for MIPSen
1165 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1166 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1167 unshift(@CcBoth_flags, ('-static'));
1169 } elsif ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1170 # we know how to *mangle* asm for PowerPC
1171 # :-( unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1172 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1173 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1174 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1175 } elsif ($TargetPlatform =~ /^sparc-/) {
1176 # we know how to *mangle* asm for SPARC
1177 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1178 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1181 } # end of setupMachOpts
1184 %************************************************************************
1186 \subsection{Set up for warnings}
1188 %************************************************************************
1190 Several warnings are turned on by default. These are supposed to be
1191 the 'I'm pretty sure you've made a mistake here' kind of warnings.
1192 The rest are turned on by the -W and -Wall options, or individually
1193 via their -fwarn and -fno-warn flags.
1196 sub setupWarningFlags {
1197 &add_Hsc_flags( @StandardWarnings );
1201 Same unshifting magic, but for special linker flags.
1203 The configure script determines whether the object file symbol tables
1204 have a leading underscore, and sets @LeadingUnderscore@ accordingly.
1205 (The driver script `sees' the setting of the @LeadingUnderscore@
1206 by having the Makefile prepend it).
1210 local($uscore) = ( ${LeadingUnderscore} eq 'YES' ) ? '_' : '';
1213 (($Ld_main) ? ( '-u', "${uscore}Main_" . $Ld_main . '_closure' ) : ()));
1215 ( '-u', "${uscore}PrelBase_Z91Z93_closure" # i.e., []
1216 ,'-u', "${uscore}PrelBase_IZh_static_info"
1217 ,'-u', "${uscore}PrelBase_CZh_static_info"
1218 ,'-u', "${uscore}PrelBase_False_inregs_info"
1219 ,'-u', "${uscore}PrelBase_True_inregs_info"
1220 ,'-u', "${uscore}DEBUG_REGS"
1222 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1223 # sometimes we have lots of toc entries...
1224 # unshift(@Ld_flags, ('-Xlinker -bbigtoc -Xlinker -bnoquiet'));
1225 unshift(@Ld_flags, ('-Xlinker -bbigtoc'));
1228 } # end of setupLinkOpts
1232 %************************************************************************
1234 \subsection{Set up include paths and system-library enslurpment}
1236 %************************************************************************
1238 Now that we know what garbage-collector, etc., are required, we can
1239 finalise our list of libraries to slurp through, and generally Get
1244 # default includes must be added AFTER option processing
1245 if ( ! $INSTALLING ) {
1246 push (@Include_dir, "$TopPwd/${CURRENT_DIR}/${GHC_INCLUDE_DIR}");
1248 push (@Include_dir, "$InstLibDirGhc/includes");
1249 push (@Include_dir, "$InstLibDirGhc/includes");
1251 } # end of setupIncPaths
1256 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1259 foreach $f (@SysLibrary) {
1260 next if $f =~ /_cbits/;
1261 $f .= $BuildTag if $f =~ /^-lHS/;
1264 # fiddle the TopClosure file name...
1265 $TopClosureFile =~ s/XXXX//;
1267 # Push library HSrts, plus boring clib bit
1268 push(@SysLibrary, "-lHSrts${BuildTag}");
1269 push(@SysLibrary, '-lHSclib');
1271 # RTS compiled with cygwin32, uses the WinMM API
1272 # to implement the itimers, since cygwin.dll does not
1273 # support it. Only reqd. for `ways' that use itimers.
1275 push(@SysLibrary, '-lwinmm') if $BuildTag ne '' && $TargetPlatform eq 'i386-unknown-cygwin32';
1277 # Push the pvm libraries
1278 if ($BuildTag eq '_mp') {
1279 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1280 push(@SysLibrary, "-L$pvmlib", '-lpvm3', '-lgpvm3');
1281 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1282 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1283 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1284 push(@SysLibrary, '-lsocket', '-lnsl');
1288 # Push the GNU multi-precision arith lib; and the math library
1289 push(@SysLibrary, '-lgmp');
1290 push(@SysLibrary, '-lm');
1293 %************************************************************************
1295 \subsection{Check that this system was built to do what we are asking}
1297 %************************************************************************
1299 Before continuing we check that the appropriate build is available.
1302 #die "$Pgm: no BuildAvail?? $BuildTag\n" if $BuildDescr{$BuildTag} eq '' ; # sanity
1304 if ( $BuildDescr{$BuildTag} eq '' ) {
1305 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1306 "' \"build\" is not available with your GHC setup.\n";
1307 print STDERR "(It was not configured for it at your site.)\n";
1308 print STDERR $ShortUsage;
1312 } # end of setupSyslibs
1316 %************************************************************************
1318 \subsection{Final miscellaneous setup bits before we start going}
1320 %************************************************************************
1322 Record largest specific heapsize, if any.
1324 sub setupHeapStackSize {
1325 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1326 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1327 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1328 push(@HsC_rts_flags, "-K$Specific_stk_size");
1332 If no input or link files seen, then we let 'em feed in stdin; this is
1333 mainly for debugging.
1337 if ($#Input_file < 0 && $#Link_file < 0) {
1338 @Input_file = ( '-' );
1340 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1341 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n" if -t;
1342 while (<STDIN>) { print INF $_; }
1343 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1348 Tell the world who we are, if they asked.
1350 print STDERR "${ProjectName}, version ${ProjectVersion}, patchlevel ${ProjectPatchLevel}\n"
1354 %************************************************************************
1356 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1358 %************************************************************************
1360 Process the input files; don't continue with linking if there are
1361 problems (global variable @$Status@ non-zero).
1363 foreach $ifile (@Input_file) {
1364 &ProcessInputFile($ifile);
1367 if ( $Status > 0 ) { # don't link if there were errors...
1368 print STDERR $ShortUsage;
1373 # append last minute flags linker and consistency flags
1380 Link if appropriate.
1383 local($libdirs) = '';
1385 # glue them together:
1386 push(@UserLibrary_dir, @SysLibrary_dir);
1388 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1390 # for a linker, use an explicitly given one, or the going C compiler ...
1391 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1393 if ( ($Specific_output_file eq '') &&
1394 ($TargetPlatform eq 'i386-unknown-cygwin32') ) {
1395 $Specific_output_file = 'main.exe';
1396 print STDERR "Output file not specified, defaulting to \"main.exe\"\n";
1399 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1400 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1402 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $TopClosureFile $libdirs @UserLibrary @SysLibrary";
1403 &run_something($to_do, 'Linker');
1405 # finally, check the consistency info in the binary
1406 local($executable) = $Files_to_tidy[0];
1407 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1410 # dynamically load consistency-chking code; then do it.
1411 require('ghc-consist.prl')
1412 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1414 &chk_consistency_info ( $executable );
1417 # if PVM parallel stuff, we do truly weird things.
1418 # Essentially: (1) move the executable over to where PVM expects
1419 # to find it. (2) create a script in place of the executable
1420 # which will cause the program to be run, via SysMan.
1421 if ( $PARing eq 'p' ) {
1422 local($pvm_executable) = $executable;
1423 local($pvm_executable_base);
1425 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1426 local($pwd) = `pwd`;
1428 $pwd =~ s/^\/tmp_mnt//;
1429 $pvm_executable = "$pwd/$pvm_executable";
1432 $pvm_executable =~ s|/|=|g; # make /s into =s
1433 $pvm_executable_base = $pvm_executable;
1435 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1436 . "/$pvm_executable";
1438 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1440 # OK, now create the magic script for "$executable"
1441 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1442 print EXEC <<EOSCRIPT1;
1443 eval 'exec perl -S \$0 \${1+"\$@"}'
1444 if \$running_under_some_shell;
1445 # =!=!=!=!=!=!=!=!=!=!=!
1446 # This script is automatically generated: DO NOT EDIT!!!
1447 # Generated by Glasgow Haskell, version ${ProjectVersion} ${ProjectPatchLevel}
1449 \$pvm_executable = '$pvm_executable';
1450 \$pvm_executable_base = '$pvm_executable_base';
1451 \$SysMan = '$SysMan';
1454 print EXEC <<\EOSCRIPT2;
1455 # first, some magical shortcuts to run "commands" on the binary
1457 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1459 system("$cmd $pvm_executable");
1463 # OK, really run it; process the args first
1464 $ENV{'PE'} = $pvm_executable_base;
1466 $nprocessors = 2; # the default
1470 # ToDo: handle --RTS
1471 args: while ($a = shift(@ARGV)) {
1472 if ( $a eq '+RTS' ) {
1474 } elsif ( $a eq '-RTS' ) {
1477 if ( $a eq '-d' && $in_RTS_args ) {
1479 } elsif ( $a =~ /^-N(\d+)/ && $in_RTS_args ) {
1482 push(@nonPVM_args, $a);
1486 local($return_val) = 0;
1487 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
1489 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
1492 close(EXEC) || die "Failed closing $executable\n";
1493 chmod 0755, $executable;
1497 # that... that's all, folks!
1499 exit $Status; # will still be 0 if all went well
1502 %************************************************************************
1504 \section[Driver-do-one-file]{How to process a single input file}
1506 %************************************************************************
1509 sub ProcessInputFile {
1510 local($ifile) = @_; # input file name
1511 local($ifile_root); # root of or basename of input file
1512 local($ofile_target); # ultimate output file we hope to produce
1513 # from input file (need to know for recomp
1514 # checking purposes)
1515 local($hifile_target);# ditto (but .hi file)
1518 Handle the weirdity of input from stdin.
1520 if ($ifile ne '-') {
1521 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1522 $ofile_target = # may be reset later...
1523 ($Specific_output_file ne '' && ! $Do_lnkr)
1524 ? $Specific_output_file
1525 : &odir_ify($ifile_root, 'o');
1526 $hifile_target= ($Specific_hi_file ne '')
1528 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1529 # NB: may change if $ifile_root isn't module name (??)
1531 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1532 $ifile_root = '_stdin';
1533 $ofile_target = '_stdout'; # gratuitous?
1534 $hifile_target= '_stdout'; # ditto?
1538 We need to decide what phases of the compilation system we will run
1539 over this file. The defaults are the ones established when processing
1540 flags. (That established what the last phase run for all files is.)
1542 We do the pre-recompilation-checker phases here; the rest later.
1546 Look at the suffix and decide what initial phases of compilation may
1547 be dropped off for this file. Also the rather boring business of
1548 which files are coming-in/going-out.
1550 Again, we'll do the post-recompilation-checker parts of this later.
1552 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1553 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1556 # names of the files to stuff between phases
1557 # defaults are temporaries
1558 local($in_lit2pgm) = $ifile;
1559 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1560 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1561 local($hsc_hi) = "$Tmp_prefix.hi";
1562 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1563 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1564 local($as_out) = $ofile_target;
1566 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
1568 # OK, let's strip off some literate junk..
1570 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
1572 $lit2pgm_hscpp = $ifile;
1578 # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas
1579 &check_for_source_options($lit2pgm_hscpp,$ifile);
1581 # Options found in the source file take a back seat, i.e., we scan
1582 # them first. Only process the command line again if source file
1583 # contained anything of interest *or* there's more than one
1584 # input file (we have to reset the options).
1586 if ( $#Input_file >= 0 || $#File_options >= 0) {
1587 #@File_options = (@File_options, @Cmd_opts);
1589 # Now process the command line
1590 &initDriverGlobals();
1591 &processArgs((@File_options,@Cmd_opts));
1592 print STDERR "\nEffective command line: " .
1593 join(' ',(@File_options,@Cmd_opts)) . "\n" if $Verbose;
1596 # Having got the effective command line scanned, set up
1597 # the various options in prep for some real work.
1599 # check the sanity of the BuildTag we're about to use,
1600 # and if needs be, add some more flags and setup to
1601 # the different phases.
1604 &setupOptimiseFlags();
1607 &setupWarningFlags();
1608 &setupHeapStackSize();
1611 # These two variables need to be set after the
1612 # command-line has been processed and the build options
1613 # have be seen set up. This is because command-line options
1614 # can control whether to compile vias C or not.
1616 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1618 : ( ($HscOut eq '-C=') ? 1 : 0 );
1619 local($do_as) = $Do_as;
1620 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1622 if ($Only_preprocess_hc) { # stop after having run $Cc -E
1625 if ($Only_preprocess_C) { # stop after having run $hscpp
1626 $do_hsc=0; $do_cc = 0; $do_as=0;
1627 } elsif ($ifile =~ /.lhs$/ || $ifile =~ /.hs$/ ) {
1629 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
1630 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1632 } elsif ($ifile =~ /\.c$/) {
1633 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1634 $hsc_out = $ifile; $is_hc_file = 0;
1635 } elsif ($ifile =~ /\.s$/) {
1636 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
1638 } else { # don't know what it is, but nothing to do herein...
1639 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
1642 # hack to avoid running hscpp
1643 $HsCpp = $Cat if ! $Cpp_flag_set;
1645 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) if $do_hscpp;
1649 We now think about whether to run hsc/cc or not (when hsc produces .s
1650 stuff, it effectively takes the place of both phases).
1652 To get the output file name right: for each phase that we are {\em
1653 not} going to run, set its input (i.e., the output of its preceding
1654 phase) to @"$ifile_root.<suffix>"@.
1657 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
1660 # Warning issued if -keep-hc-file-too is used without
1661 # -fvia-C (or the equivalent)
1663 if ( $HscOut ne '-C=' && $Keep_hc_file_too ) {
1664 print STDERR "$Pgm: warning: Native code generator to be used, -keep-hc-file-too will be ignored\n";
1667 if (! $do_cc && ! $do_as) { # stopping after hsc
1668 $hsc_out = ($Specific_output_file ne '')
1669 ? $Specific_output_file
1670 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
1672 $ofile_target = $hsc_out; # reset
1675 if (! $do_as) { # stopping after gcc (or hsc)
1676 $cc_as = ($Specific_output_file ne '')
1677 ? $Specific_output_file
1678 : &odir_ify($ifile_root, ( $Only_preprocess_hc ) ? 'i' : 's');
1680 $ofile_target = $cc_as; # reset
1686 Now the Haskell compiler, C compiler, and assembler
1690 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
1691 $ofile_target, $hifile_target);
1695 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
1696 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root) if ! $Only_preprocess_hc;
1699 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
1701 # save a copy of the .s file..
1702 &saveIntermediate($ifile_root , "s" , $cc_as) if ($do_as && $Keep_s_file_too);
1703 &runAs($as_out, $ifile_root) if $do_as;
1706 Finally, decide what to queue up for linker input.
1708 # tentatively assume we will eventually produce linker input:
1709 push(@Link_file, &odir_ify($ifile_root, 'o'));
1711 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
1714 if ( $ifile !~ /\.(lhs|hs|hc|c|s|a)$/ && $ifile !~ /_hc$/ ) {
1715 # There's sometimes confusion regarding .hi files; users
1716 # supplying them on the command line.
1717 if ( $ifile =~ /\.hi$/ ) {
1718 print STDERR "$Pgm: warning: found `$ifile' on command line; interface files should not be supplied here - ignoring it.\n";
1720 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n";
1722 # oops; we tentatively pushed the wrong thing; fix & do the right thing
1723 pop(@Link_file); push(@Link_file, $ifile);
1727 } # end of ProcessInputFile
1730 %************************************************************************
1732 \section[Driver-run-phases]{Routines to run the various phases}
1734 %************************************************************************
1738 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
1742 # Only add #line pragma if we're going to need it.
1743 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && " if ($Cpp_flag_set);
1744 $to_do .= "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
1746 push(@Files_to_tidy, $lit2pgm_hscpp );
1748 &run_something($to_do, 'literate pre-processor');
1754 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
1758 # Strictly speaking, echoing of the following line pragma is only required
1759 # on non-delit'ed input, as we've already added it during de-lit. However,
1760 # hscpp will then add a {-# LINE 1 "$lit2pgm_hsc" -} to the top of the file,
1761 # which is not very informative (but harmless). Hence, we uniformly have
1762 # {-# LINE 1 "$in_lit2pgm" #-} as the first line to all cpp'ed hsc input.
1764 $to_do = "echo '{-# LINE 1 \"$in_lit2pgm\" -}' > $hscpp_hsc && ";
1766 if ($HsCpp eq $Cat) {
1767 $to_do .= "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
1768 push(@Files_to_tidy, $hscpp_hsc );
1769 &run_something($to_do, 'Ineffective C pre-processor');
1771 local($includes) = '-I' . join(' -I',@Include_dir);
1772 $to_do .= "$HsCpp $Verbose $genSPECS_flag @HsCpp_flags -D__HASKELL1__=$Haskell1Version -D__GLASGOW_HASKELL__=$GhcVersionInfo $includes $lit2pgm_hscpp >> $hscpp_hsc";
1773 push(@Files_to_tidy, $hscpp_hsc );
1774 &run_something($to_do, 'Haskellised C pre-processor');
1777 if ( $Only_preprocess_C ) {
1778 $to_do = "$Cat $hscpp_hsc";
1779 &run_something($to_do, '');
1787 sub runHscAndProcessInterfaces {
1788 local($ifile, $hscpp_hsc, $ifile_root, $ofile_target, $hifile_target) = @_;
1790 # $ifile is the original input file
1791 # $hscpp_hsc post-unlit, post-cpp, etc., input file
1792 # $ifile_root input filename minus suffix
1793 # $ofile_target the output file that we ultimately hope to produce
1794 # $hifile_target the .hi file ... (ditto)
1796 local($source_unchanged) = 1;
1798 # Check if the source file is up to date relative to the target; in
1799 # that case we say "source is unchanged" and let the compiler bail out
1800 # early if the import usage information allows it.
1802 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
1803 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
1805 # The informational messages below are now conditional on -v being set -- SOF
1806 if ( $ofile_target ne "_stdin.s" && ! -f $ofile_target ) {
1807 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n" if $Verbose;
1808 $source_unchanged = 0;
1811 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
1812 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
1814 if ( $hifile_target ne "_stdout" && ! -f $hifile_target ) {
1815 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n" if $Verbose;
1816 $source_unchanged = 0;
1819 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
1820 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
1822 if ( $ofile_target ne "_stdin.s" && $i_mtime > $o_mtime) {
1823 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n" if $Verbose;
1824 $source_unchanged = 0;
1827 # So if source_unchanged is still "1", we pass on the good news to the compiler
1828 # The -recomp flag can disable this, forcing recompilation
1829 if ($Do_recomp_chkr && $source_unchanged) {
1830 push(@HsC_flags, '-fsource-unchanged');
1835 &runHsc($ifile_root, $hsc_out, $hsc_hi, $going_interactive);
1837 # See if it bailed out early, saying nothing needed doing.
1838 # We work this out by seeing if it created an output .hi file
1840 if ( ! -f $hsc_hi && $ProduceHi !~ /-nohifile=/ ) {
1841 # Doesn't exist, so we bailed out early.
1842 # Tell the C compiler and assembler not to run
1843 $do_cc = 0; $do_as = 0;
1845 # Update dependency info, touch both object file and
1846 # interface file, so that the following invariant is
1849 # a dependent module's interface file should after recompilation
1850 # checking be newer than the interface files of its imports.
1852 # That is, if module A's interface file changes, then module B
1853 # (which import from A) needs to be checked.
1854 # If A's change does not affect B, which causes the compiler to bail
1855 # out early, we still need to touch the interface file of B. The reason
1856 # for this is that B may export A's interface.
1858 &run_something("touch $ofile_target",
1859 "Touch $ofile_target, to propagate dependencies") if $HscOut ne '-N=';
1860 &run_something("touch $hifile_target",
1861 "Touch $hifile_target, to propagate dependencies") if $ProduceHi =~ /-nohifile=/ ;
1865 # Didn't bail out early (new .hi file) so we thunder on
1867 # If non-interactive, heave in the consistency info at the end
1868 # NB: pretty hackish (depends on how $output is set)
1869 if ( ! $going_interactive ) {
1870 if ( $HscOut eq '-C=' ) {
1871 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
1873 } elsif ( $HscOut eq '-S=' ) {
1874 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
1875 $consist =~ s/,/./g;
1876 $consist =~ s/\//./g;
1877 $consist =~ s/-/_/g;
1878 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
1879 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
1881 &run_something($to_do, 'Pin on Haskell consistency info');
1885 # Interface-handling is important enough to live off by itself
1886 if ( $ProduceHi !~ /-nohifile=/ ) { # If we've produced one, process it.
1887 require('ghc-iface.prl') || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
1888 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
1890 # if we're going to split up object files,
1891 # we inject split markers into the .hc file now
1892 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
1893 &inject_split_markers ( $hsc_out );
1896 # save a copy of the .hc file, even if we are carrying on...
1897 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
1898 &saveIntermediate($ifile_root , "hc" , $hsc_out);
1908 local($ifile_root, $hsc_out, $hsc_hi, $going_interactive) = @_;
1910 # prepend comma to HsP flags (so hsc can tell them apart...)
1911 foreach $a ( @HsP_flags ) { $a = ",$a" unless $a =~ /^,/; }
1913 &makeHiMap() unless $HiMapDone;
1914 #print STDERR "HiIncludes: $HiIncludeString\n";
1915 push(@HsC_flags, "-himap=$HiIncludeString");
1917 # here, we may produce .hc/.s and/or .hi files
1918 local($output) = '';
1919 #@Files_to_tidy = ();
1921 if ( $going_interactive ) {
1922 # don't need .hi unless going to show it on stdout:
1923 $ProduceHi = '-nohifile=' if ! $HiOnStdout;
1924 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
1927 # set up for producing output/.hi; note that flag twiddling
1928 # may mean that nothing will actually be produced:
1929 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out";
1930 push(@Files_to_tidy, $hsc_hi, $hsc_out );
1932 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
1933 if ( $CollectingGCstats ) {
1934 push(@HsC_rts_flags, "-S$ifile_root.stat");
1935 push(@Files_to_tidy, "$ifile_root.stat");
1938 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
1939 # emit nofibbish time/bytes-alloc stats to stderr;
1940 # see later .stat file post-processing
1941 print STDERR "warning: both -Rgc-stats and -Rghc-timing used, -Rghc-timing wins." if $CollectingGCstats;
1942 push(@HsC_rts_flags, "-s$Tmp_prefix.stat");
1943 push(@Files_to_tidy, "$Tmp_prefix.stat");
1947 if ($Specific_dump_file ne '') {
1948 $dump = "2>> $Specific_dump_file";
1949 $Using_dump_file = 1;
1953 $to_do = "$HsC @HsP_flags ,$hscpp_hsc $dump @HsC_flags $CoreLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
1954 &run_something($to_do, 'Haskell compiler');
1956 # finish business w/ nofibbish time/bytes-alloc stats
1957 &process_ghc_timings() if $CollectGhcTimings;
1961 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
1962 of (module-name, pathname) pairs, one per line, separated by a space.
1965 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1969 # collect in %HiMap; write later; also used elsewhere in driver
1971 local($mod, $path, $d, $e);
1973 # reset the global variables:
1975 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1977 foreach $d ( @Import_dir ) {
1978 if ($HiIncludeString) {
1979 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix}";
1981 $HiIncludeString = "$d%.${HiSuffix}";
1986 foreach $d ( @SysImport_dir ) {
1987 if ($HiIncludeString) {
1988 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix_prelude}";
1990 $HiIncludeString = "${d}%.${HiSuffix_prelude}";
1999 %************************************************************************
2001 \section[Driver-misc-utils]{Miscellaneous utilities}
2003 %************************************************************************
2005 %************************************************************************
2007 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
2009 %************************************************************************
2013 local($ofile,$def_suffix) = @_;
2015 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
2019 local($orig_file, $def_suffix) = @_;
2020 if ($Specific_output_dir eq '') { # do nothing
2021 &osuf_ify($orig_file, $def_suffix);
2023 local ($orig_file_only);
2024 ($orig_file_only = $orig_file) =~ s|.*/||;
2025 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
2032 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
2034 local($includes) = '-I' . join(' -I', @Include_dir);
2037 local($c_flags) = "@CcBoth_flags";
2038 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2040 # "input" files to use that are not in some weird directory;
2041 # to help C compilers grok .hc files [ToDo: de-hackify]
2042 local($cc_help) = "ghc$$.c";
2043 local($cc_help_s) = "ghc$$.s";
2046 $s_output = ($is_hc_file || $TargetPlatform =~ /^(powerpc|rs6000|hppa|i386)/) ? $cc_as_o : $cc_as;
2047 $c_flags .= " @CcRegd_flags";
2048 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2050 # C compiler won't like the .hc extension. So we create
2051 # a tmp .c file which #include's the needful.
2052 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2053 if ( $is_hc_file ) {
2055 #ifdef __STG_GCC_REGS__
2056 # if ! (defined(MAIN_REG_MAP) || defined(MARK_REG_MAP) || defined(SCAN_REG_MAP) || defined(SCAV_REG_MAP) || defined(FLUSH_REG_MAP))
2057 # define MAIN_REG_MAP
2060 #include "stgdefs.h"
2062 # user may have asked for #includes to be injected...
2063 print TMP @CcInjects if $#CcInjects >= 0;
2065 # heave in the consistency info
2066 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2068 # and #include the real source
2069 print TMP "#include \"$hsc_out\"\n";
2070 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2072 # Don't redirect stderr into intermediate file if slamming output onto stdout (e.g., with -E)
2073 local($fuse_stderr) = "2>&1" if ! $Only_preprocess_hc;
2074 local($to_do) = "$cc $Verbose $ddebug_flag $c_flags @Cpp_define -D__HASKELL1__=$Haskell1Version $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 )";
2075 # note: __GLASGOW_HASKELL__ is pointedly *not* #defined at the C level.
2077 if ( $Only_preprocess_hc ) { # HACK ALERT!
2078 $to_do =~ s/ -S\b//g;
2080 push(@Files_to_tidy, $cc_help, $cc_help_s, $s_output );
2081 $PostprocessCcOutput = 1 if ! $Only_preprocess_hc; # hack, dear hack...
2082 &run_something($to_do, 'C compiler');
2083 $PostprocessCcOutput = 0;
2084 if ( $Only_preprocess_hc ) {
2085 system("$Cat $Tmp_prefix.ccout");
2087 unlink($cc_help, $cc_help_s);
2093 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2095 if ( $is_hc_file ) {
2096 # dynamically load assembler-fiddling code, which we are about to use:
2097 require('ghc-asm.prl')
2098 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2101 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2104 # post-process the assembler [.hc files only]
2105 &mangle_asm($cc_as_o, $cc_as);
2109 #OLD: local($target) = 'oops';
2110 #OLD: $target = '-alpha' if $TargetPlatform =~ /^alpha-/;
2111 #OLD: $target = '-hppa' if $TargetPlatform =~ /^hppa/;
2112 #OLD: $target = '-old-asm' if $TargetPlatform =~ /^i386-/;
2113 #OLD: $target = '-m68k' if $TargetPlatform =~ /^m68k-/;
2114 #OLD: $target = '-mips' if $TargetPlatform =~ /^mips-/;
2115 #OLD: $target = '' if $TargetPlatform =~ /^powerpc-/;
2116 #OLD: $target = '-solaris' if $TargetPlatform =~ /^sparc-sun-solaris2/;
2117 #OLD: $target = '-sparc' if $TargetPlatform =~ /^sparc-sun-sunos4/;
2119 #OLD: if ( $target ne '' ) {
2120 #OLD: require("ghc-asm$target.prl")
2121 #OLD: || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm$target.prl!\n");
2122 #OLD: &mangle_asm($cc_as_o, "$cc_as-2"); # the OLD one!
2123 #OLD: &run_something("$Cmp -s $cc_as-2 $cc_as || $Diff $cc_as-2 $cc_as 1>&2 || exit 0",
2124 #OLD: "Diff'ing old and new mangled .s files"); # NB: to stderr
2127 } elsif ($TargetPlatform =~ /^hppa/) {
2128 # minor mangling of non-threaded files for hp-pa only
2129 require('ghc-asm.prl')
2130 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2131 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2133 } elsif ($TargetPlatform =~ /^powerpc|^rs6000/) {
2134 # minor mangling of non-threaded files for powerpcs and rs6000s
2135 require('ghc-asm.prl')
2136 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-powerpc.prl!\n");
2137 &mini_mangle_asm_powerpc($cc_as_o, $cc_as);
2138 } elsif ($TargetPlatform =~ /^i386/) {
2139 # extremely-minor OFFENSIVE mangling of non-threaded just one file
2140 require('ghc-asm.prl')
2141 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2142 &mini_mangle_asm_i386($cc_as_o, $cc_as);
2145 # save a copy of the .s file, even if we are carrying on...
2146 #if ($do_as && $Keep_s_file_too) {
2147 # &saveIntermediate($ifile_root , "s" , $cc_as);
2154 local($as_out, $ifile_root) = @_;
2156 local($asmblr) = ( $As ) ? $As : $CcRegd;
2158 if ( ! $SplitObjFiles ) {
2159 local($to_do) = "$asmblr -o $as_out -c @As_flags $cc_as";
2160 push(@Files_to_tidy, $as_out );
2161 &run_something($to_do, 'Unix assembler');
2163 } else { # more complicated split-ification...
2165 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2167 # If -odir is used, great, just pin it in front of the
2168 # generated split file names. If it hasn't been set, we
2169 # snatch it from the ifile_root.
2173 if ( $Specific_output_dir eq '' ) {
2174 $Specific_output_dir = ${ifile_root};
2177 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2178 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2179 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2180 push(@Files_to_tidy, $split_out );
2182 &run_something($to_do, 'Unix assembler');
2188 %************************************************************************
2190 \subsection[Driver-run-something]{@run_something@: Run a phase}
2192 %************************************************************************
2196 local($str_to_do, $tidy_name) = @_;
2198 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2199 print STDERR "$str_to_do\n" if $Verbose;
2201 if ($Using_dump_file) {
2202 open(DUMP, ">> $Specific_dump_file")
2203 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2204 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2206 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2209 local($return_val) = 0;
2211 if ( length($str_to_do) > 4000) {
2212 # 4000 - on the random side, just like the *real* ARG_MAX
2215 # With some shells, command lines of this length may
2216 # very well cause trouble. To safeguard against this, we squirrel the
2217 # command into a file and exec that.
2218 local ($sh) = $ENV{'REAL_SHELL'};
2219 print STDERR "Backup plan A: saving cmd line in ${Tmp_prefix}.sh and executing that with $sh\n" if $Verbose;
2220 open (TEMP, "> ${Tmp_prefix}.sh") ||
2221 &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.sh'\n");
2222 print TEMP "$Time $str_to_do\n";
2224 &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.sh'\n");
2225 system("$sh $Tmp_prefix.sh");
2228 unlink "${Tmp_prefix}.sh";
2230 system("$Time $str_to_do");
2234 if ( $PostprocessCcOutput ) { # hack, continued
2235 open(CCOUT, "< $Tmp_prefix.ccout")
2236 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2238 next if /attribute directive ignored/;
2239 next if /call-clobbered/;
2240 next if /from .*COptRegs\.lh/;
2241 next if /from .*(stg|rts)defs\.h:/;
2242 next if /from ghc\d+.c:\d+:/;
2243 next if /from .*\.lc/;
2244 next if /from .*SMinternal\.l?h/;
2245 next if /ANSI C does not support \`long long\'/;
2246 next if /warning:.*was declared \`extern\' and later \`static\'/;
2247 next if /warning: assignment discards \`const\' from pointer target type/;
2248 next if /: At top level:$/;
2249 next if /: In function \`.*\':$/;
2250 next if /\`ghc_cc_ID\' defined but not used/;
2253 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2256 if ($return_val != 0) {
2257 if ($Using_dump_file) {
2258 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2261 &tidy_up_and_die($return_val, '');
2263 $Using_dump_file = 0;
2267 %************************************************************************
2269 \subsection[Driver-ghc-timing]{Emit nofibbish GHC timings}
2271 %************************************************************************
2273 NB: nearly the same as in @runstdtest@ script.
2276 sub process_ghc_timings {
2277 local($StatsFile) = "$Tmp_prefix.stat";
2278 local($SysSpecificTiming) = 'ghc';
2280 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2281 local($max_live) = 0;
2282 local($tot_live) = 0; # for calculating residency stuff
2283 local($tot_samples) = 0;
2286 if (! /Minor/ && /^\s*\d+\s+\d+\s+(\d+)\s+\d+\.\d+\%/ ) {
2287 $max_live = $1 if $max_live < $1;
2291 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2293 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2294 $MaxResidency = $1; $ResidencySamples = $2;
2297 $GCs = $1 if /^\s*([0-9,]+) garbage collections? performed/;
2299 # The presence of -? in the following pattern is only there to
2300 # accommodate 0.29 && <= 2.05 RTS'
2301 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*-?(\d+\.\d\d)s elapsed\)/ ) {
2302 $InitTime = $1; $InitElapsed = $2;
2303 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2304 $MutTime = $1; $MutElapsed = $2;
2305 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2306 $GcTime = $1; $GcElapsed = $2;
2309 close(STATS) || die "Failed when closing $StatsFile\n";
2310 if ( $tot_samples > 0 ) {
2311 $ResidencySamples = $tot_samples;
2312 $MaxResidency = $max_live;
2313 $AvgResidency = int ($tot_live / $tot_samples) ;
2316 # warn about what we didn't find
2317 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2318 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2319 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2320 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2321 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2322 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2323 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2324 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2326 # things we didn't necessarily expect to find
2327 $MaxResidency = 0 unless defined($MaxResidency);
2328 $AvgResidency = 0 unless defined($AvgResidency);
2329 $ResidencySamples = 0 unless defined($ResidencySamples);
2332 $BytesAlloc =~ s/,//g;
2333 $MaxResidency =~ s/,//g;
2335 $InitTime =~ s/,//g;
2336 $InitElapsed =~ s/,//g;
2338 $MutElapsed =~ s/,//g;
2340 $GcElapsed =~ s/,//g;
2342 # print out what we found
2343 print STDERR "<<$SysSpecificTiming: ",
2344 "$BytesAlloc bytes, $GCs GCs, $AvgResidency/$MaxResidency avg/max bytes residency ($ResidencySamples samples), $InitTime INIT ($InitElapsed elapsed), $MutTime MUT ($MutElapsed elapsed), $GcTime GC ($GcElapsed elapsed)",
2345 " :$SysSpecificTiming>>\n";
2352 %************************************************************************
2354 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2356 %************************************************************************
2360 local($to_do) = "\n$Rm $Tmp_prefix*";
2361 if ( $Tmp_prefix !~ /^\s*$/ ) {
2362 print STDERR "$to_do\n" if $Verbose;
2367 sub tidy_up_and_die {
2368 local($return_val, $msg) = @_;
2370 # delete any files to tidy
2371 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2372 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2376 exit (($return_val == 0) ? 0 : 1);
2380 %************************************************************************
2382 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2384 %************************************************************************
2386 Some command-line arguments take an argument, e.g.,
2387 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2388 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2389 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2391 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2392 gobble the second argument (and probably set the heapsize to something
2396 local(*Args, $option, $rest_of_arg) = @_;
2398 if ($rest_of_arg ne '') {
2399 return($rest_of_arg);
2400 } elsif ($#Args >= 0) {
2401 local($temp) = $Args[0]; shift(@Args);
2404 print STDERR "$Pgm: no argument following $option option\n";
2415 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2417 foreach $f ( @HsC_antiflags ) {
2418 return(0) if $flag eq $f;
2420 # foreach $f ( @HsC_flags ) {
2421 # return(0) if $flag eq $f;
2426 sub squashHscFlag { # pretty terrible
2430 foreach $f ( @HsC_flags ) {
2431 if ($flag eq $f) { $f = ''; }
2439 foreach $f ( @flags ) {
2440 push( @HsC_flags, $f ) if &isntAntiFlag($f);
2447 local($syslib) = @_;
2449 unshift(@SysImport_dir,
2450 $INSTALLING ? "$InstLibDirGhc/imports/$syslib"
2451 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/$syslib");
2453 push(@SysLibrary_dir,
2454 $INSTALLING ? ("$InstLibDirGhc")
2455 : ("$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/$syslib",
2456 "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/$syslib/cbits"));
2458 push(@SysLibrary, "-lHS$syslib");
2459 push(@SysLibrary, "-lHS${syslib}_cbits")
2460 unless $syslib eq 'contrib' || $syslib eq 'exts' || $syslib eq 'concurrent';
2461 #HACK! they have no cbits
2465 Source files may have {-# OPTIONS ... #-} pragmas at the top, containing
2466 command line options we want to append to collection of commands specified
2467 directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell
2468 file for any such pragmas:
2471 sub check_for_source_options {
2472 local($file,$ifile) = @_;
2473 local($comment_start,$comment_end);
2475 if ($ifile =~ /\.hc$/ ||
2478 $ifile =~ /_s$/ ) { # `Real' C intermediate
2479 $comment_start = "/\\*";
2480 $comment_end = "\\*/";
2481 } else { # Assume it is a file containing Haskell source
2482 $comment_start = "{-#";
2483 $comment_end = "#-}";
2486 open(FILE,$file) || return(1); # No big loss
2489 if ( /^${comment_start} OPTIONS (.*)${comment_end}$/ ) {
2490 # add the options found at the back of the command line.
2491 local(@entries) = split(/\s+/,$1);
2492 print STDERR "Found OPTIONS " . join(' ',@entries) . " in $file\n" if $Verbose;
2493 push(@File_options, @entries);
2495 elsif ( /^$/ ) { # ignore empty lines
2498 elsif ( /^#line.+$/ ) { # ignore comment lines (unused..ToDo: rm )
2501 elsif ( /^{-# LINE.+$/ ) { # ignore line pragmas
2504 else { # stop looking, something non-empty / not
2505 # ${comment_start} OPTIONS .. ${comment_end} encountered.
2506 close(FILE);return(0);
2515 We split the initial argv up into three arrays:
2521 the reason for doing so is to be able to deal
2522 with {-# OPTIONS #-} pragma in source files properly.
2528 arg: while($_ = $args[0]) {
2530 # sigh, we have to deal with these -option arg specially here.
2531 /^-(tmpdir|odir|ohi|o|isuf|osuf|hisuf|hisuf-prelude|odump|syslib)$/ &&
2532 do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; };
2533 /^--?./ && do { push(@Cmd_opts, $_); next arg; };
2535 if (/\.([^_]+_)?[oa]$/) {
2536 push(@Link_file, $_);
2538 push(@Input_file, $_);
2541 # input files must exist:
2543 print STDERR "$Pgm: input file doesn't exist: $_\n";
2551 When saving an intermediate file (.hc or .s) away, we
2552 have to prefix any OPTIONS found in the original source file.
2555 sub saveIntermediate {
2556 local ($final,$suffix,$tmp)= @_ ;
2559 # $final -- root of where to park ${final}.${suffix}
2560 # $tmp -- temporary file where hsc put the intermediate file.
2562 # Delete the old file
2563 $to_do = "$Rm ${final}.${suffix}"; &run_something($to_do, "Removing old .${suffix} file");
2565 if ( $#File_options >= 0 ) { # OPTIONS found in Haskell source unit
2566 # Add OPTION comment to the top of the generated .${suffix} file
2567 open(TEMP, "> ${final}.${suffix}") || &tidy_up_and_die(1,"Can't open ${final}.${suffix}\n");
2568 print TEMP "/* OPTIONS " . join(' ',@File_options) . " */\n";
2570 print STDERR "Prepending OPTIONS: " . join(' ',@File_options) . " to ${final}.${suffix}\n" if $Verbose;
2572 $to_do = "$Cat $tmp >> ${final}.${suffix}";
2573 &run_something($to_do, "Saving copy of .${suffix} file");
2580 Command-line processor
2586 # can't use getopt(s); what we want is too complicated
2588 arg: while($_ = $Args[0]) {
2591 #---------- help -------------------------------------------------------
2592 if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; }
2594 #-----------version ----------------------------------------------------
2595 /^--version$/ && do { print STDERR "${ProjectName}, version ${ProjectVersion}, patchlevel ${ProjectPatchLevel}\n"; exit $Status; };
2597 #---------- verbosity and such -----------------------------------------
2598 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
2600 #---------- what phases are to be run ----------------------------------
2601 /^-(no-)?recomp/ && do { $Do_recomp_chkr = ($1 eq '') ? 1 : 0; next arg; };
2603 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
2604 # change the global default:
2605 # we won't run cat; we'll run the real thing
2607 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
2609 # stop after generating C
2611 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
2612 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
2614 # leave out actual C generation (debugging) [also turns off interface gen]
2617 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
2618 # _do_ generate an interface; usually used as: -noC -hi
2619 /^-hi-with-(.*)$/ && do { $HiOnStdout = 1; $HiWith .= " $1" ; $ProduceHi = '-hifile='; next arg; };
2620 # limit ourselves to outputting a particular section.
2622 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
2623 # don't generate an interface (even if generating C)
2625 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
2626 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
2627 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
2628 /^-keep-hi-diffs$/ && do { $Keep_HiDiffs = 1; next arg; };
2630 # show/disable diffs if the interface file changes
2632 /^-E$/ && do { push(@CcBoth_flags, '-E');
2633 $Only_preprocess_C = 1;
2634 $Do_as = 0; $Do_lnkr = 0; next arg; };
2635 # stop after preprocessing C
2636 /^-M$/ && do { $Only_generate_deps = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2637 # only generate dependency information.
2638 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
2639 # stop after generating assembler
2641 /^-c$/ && do { $Do_lnkr = 0; next arg; };
2642 # stop after generating .o files
2644 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
2645 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
2646 # don't do consistency-checking after a link
2648 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', '');
2649 $Tmp_prefix = "$Tmp_prefix/ghc$$";
2650 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
2652 # use an alternate directory for temp files
2654 #---------- redirect output --------------------------------------------
2656 # -o <file>; applies to the last phase, whatever it is
2657 # "-o -" sends it to stdout
2658 # if <file> has a directory component, that dir must already exist
2660 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', '');
2662 # Hack, of the worst sort: don't do validation of
2663 # odir argument if you're using -M (dependency generation).
2665 if ( ! $Only_generate_deps && ! -d $Specific_output_dir) {
2666 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
2671 /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', '');
2672 if ($Specific_output_file ne '-'
2673 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
2674 local($dir_part) = $1;
2675 if (! -d $dir_part) {
2676 print STDERR "$Pgm: no such directory: $dir_part\n";
2682 # NB: -isuf not documented yet (because it doesn't work yet)
2683 /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', '');
2684 if ($Isuffix =~ /\./ ) {
2685 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
2690 /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', '');
2691 if ($Osuffix =~ /\./ ) {
2692 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
2697 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
2698 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', '');
2699 if ($Specific_hi_file ne '-'
2700 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
2701 local($dir_part) = $1;
2702 if (! -d $dir_part) {
2703 print STDERR "$Pgm: no such directory: $dir_part\n";
2709 # The suffix to use when looking for interface files
2710 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', '');
2711 if ($HiSuffix =~ /\./ ) {
2712 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
2716 # ToDo: remove, not a `normal' user thing to do (should be automatic)
2717 /^-hisuf-prelude$/ && do { $HiSuffix_prelude = &grab_arg_arg(*Args,'-hisuf-prelude', '');
2718 if ($HiSuffix =~ /\./ ) {
2719 print STDERR "$Pgm: -hisuf-prelude suffix shouldn't contain a .\n";
2723 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', '');
2724 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
2725 local($dir_part) = $1;
2726 if (! -d $dir_part) {
2727 print STDERR "$Pgm: no such directory: $dir_part\n";
2733 #-------------- scc & Profiling Stuff ----------------------------------
2735 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
2738 # generate auto SCCs on top level bindings
2739 # -auto-all = all top level bindings
2740 # -auto = only top level exported bindings
2741 $PROFauto = ( /-all/ )
2742 ? '-fauto-sccs-on-all-toplevs'
2743 : '-fauto-sccs-on-exported-toplevs';
2746 /^-caf-all/ && do { # generate individual CAF SCC annotations
2747 $PROFcaf = '-fauto-sccs-on-individual-cafs';
2750 /^-ignore-scc$/ && do {
2751 # forces ignore of scc annotations even if profiling
2752 $PROFignore_scc = '-W';
2755 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
2758 /^-unprof-scc-auto/ && do {
2759 # generate auto SCCs on top level bindings when not profiling.
2760 # Used to measure optimisation effects of presence of sccs.
2761 $UNPROFscc_auto = ( /-all/ )
2762 ? '-fauto-sccs-on-all-toplevs'
2763 : '-fauto-sccs-on-exported-toplevs';
2766 #--------- ticky/concurrent/parallel -----------------------------------
2767 # we sort out the details a bit later on
2769 /^-concurrent$/ && do { $CONCURing = 'c'; &add_syslib('concurrent'); next arg; };
2770 # concurrent Haskell; implies -syslib conc
2771 /^-gransim$/ && do { $GRANing = 'g'; next arg; }; # GranSim
2772 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
2773 /^-parallel$/ && do { $PARing = 'p'; next arg; }; # parallel Haskell
2775 #-------------- "user ways" --------------------------------------------
2777 (/^-user-setup-([a-oA-Z])$/ ) &&
2779 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
2781 local($stuff) = $UserSetupOpts{$BuildTag};
2782 local(@opts) = split(/\s+/, $stuff);
2784 # feed relevant ops into the arg-processing loop (if any)
2785 unshift(@Args, @opts) if $#opts >= 0;
2789 #---------- set search paths for libraries and things ------------------
2791 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
2792 # prepends the items to the list); -I is for including C .h files.
2794 /^-i$/ && do { @Import_dir = (); # import path cleared!
2795 @SysImport_dir = ();
2796 print STDERR "WARNING: import paths cleared by `-i'\n";
2799 /^-i(.*)/ && do { local(@new_items)
2800 = split( /:/, &grab_arg_arg(*Args,'-i', $1));
2801 unshift(@Import_dir, @new_items);
2804 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; };
2805 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; };
2806 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; };
2808 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1);
2809 print STDERR "$Pgm: no such system library (-syslib): $syslib\n",
2810 $Status++ unless $syslib =~ /^(exts|misc|posix)$/;
2813 # The posix library is a `special' in that it relies on
2814 # the ghc system library (packed strings). Wielding our
2815 # sledgehammer, the problem is solved by silently including
2816 # the ghc system library as well.
2817 # (ToDo: `nub' -syslib list)
2819 &add_syslib($syslib);
2820 if ( $syslib eq 'posix' ) {
2821 &add_syslib('misc');
2822 } elsif ( $syslib eq 'misc' &&
2823 $TargetName =~ /-solaris2$/ ) {
2824 # needed for Berkeley socket/nwork stuff.
2825 push(@SysLibrary, '-lnsl');
2829 #=======================================================================
2830 # various flags that we can harmlessly send to one program or another
2831 # (we will later "reclaim" some of the compiler ones now sent to gcc)
2832 #=======================================================================
2834 #---------- this driver itself (ghc) -----------------------------------
2835 # these change what executable is run for each phase:
2836 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
2837 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
2838 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
2839 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
2840 /^-pgma(.*)$/ && do { $As = $1; next arg; };
2841 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
2842 /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; };
2844 #---------- the get-anything-through opts (all pgms) -------------------
2845 # these allow arbitrary option-strings to go to any phase:
2846 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
2847 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
2848 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
2849 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
2850 /^-optp(.*)$/ && do { push(@HsP_flags, $1); next arg; };
2851 /^-optcpp(.*)$/ && do { push(@Cpp_define, $1); $Only_preprocess_hc = ($1 eq "-E"); next arg; };
2852 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
2853 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
2854 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
2855 /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; };
2857 #---------- Haskell C pre-processor (hscpp) ----------------------------
2858 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; };
2859 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; };
2861 /^-genSPECS/ && do { $Cpp_flag_set = 1;
2862 $genSPECS_flag = $_;
2865 #---------- post-Haskell "assembler"------------------------------------
2866 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
2867 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
2869 #---------- Haskell compiler (hsc) -------------------------------------
2871 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
2872 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
2874 /^-fhaskell-1\.3$/ && do { next arg; }; # a no-op right now
2876 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
2878 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
2879 # don't do stack checking using page fault `trick'.
2881 /^-fstack-check$/ && do { $StkChkByPageFaultOK = 0; next arg; };
2883 # have the compiler proper generate concurrent code,
2884 # really only used when you want to configure your own
2885 # special user compilation way. (Use -concurrent when
2886 # compiling `Concurrent Haskell' programs).
2888 # (ditto for -fgransim, fscc-profiling and -fticky-ticky)
2890 /^-fconcurrent$/ && do { push(@HsC_flags,$_); next arg; };
2891 /^-fscc-profiling$/ && do { push(@HsC_flags,$_); next arg; };
2892 /^-fticky-ticky$/ && do { push(@HsC_flags,$_); next arg; };
2893 /^-fgransim$/ && do { push(@HsC_flags,$_); next arg; };
2895 /^-split-objs/ && do {
2896 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|rs6000|sparc)-/ ) {
2898 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
2903 push(@HsC_flags, "-fglobalise-toplev-names");
2904 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
2906 require('ghc-split.prl')
2907 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
2912 && do { push(@HsC_flags, $_);
2913 push(@HsP_flags, '-N');
2915 # push(@HsC_flags, '-fshow-import-specs');
2917 # -fglasgow-exts implies -syslib exts
2918 &add_syslib('exts');
2922 /^-fspeciali[sz]e-unboxed$/
2923 && do { $Oopt_DoSpecialise = '-fspecialise';
2924 $Oopt_SpecialiseUnboxed = '-fspecialise-unboxed';
2927 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
2928 /^-fno-speciali[sz]e$/
2929 && do { $Oopt_DoSpecialise = ''; next arg; };
2932 # Now the foldr/build options, which are *on* by default (for -O).
2935 && do { $Oopt_FoldrBuild = 1;
2936 $Oopt_FB_Support = '-fdo-arity-expand';
2940 /^-fno-foldr-build$/
2941 && do { $Oopt_FoldrBuild = 0;
2942 $Oopt_FB_Support = '';
2945 /^-fno-foldr-build-rule$/
2946 && do { $Oopt_FoldrBuild = 0;
2949 /^-fno-enable-tech$/
2950 && do { $Oopt_FB_Support = '';
2953 /^-fno-snapback-to-append$/
2954 && do { $Oopt_FoldrBuildInline .= ' -fdo-not-fold-back-append ';
2957 # --------------- Renamer -------------
2960 /^-fno-prune-tydecls$/ && do { push(@HsC_flags, $_); next arg; };
2961 /^-fno-prune-instdecls$/ && do { push(@HsC_flags, $_); next arg; };
2965 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
2966 /^-fvia-[cC]$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
2970 /^(-funfolding-use-threshold)(.*)$/
2971 && do { $Oopt_UnfoldingUseThreshold = $1 . &grab_arg_arg(*Args,$1, $2);
2974 /^(-fmax-simplifier-iterations)(.*)$/
2975 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2);
2977 /^(-fshow-simplifier-progress)/
2978 && do { $Oopt_ShowSimplifierProgress = $1;
2981 /^-fno-pedantic-bottoms$/
2982 && do { $Oopt_PedanticBottoms = ''; next arg; };
2984 /^-fdo-monad-eta-expansion$/
2985 && do { $Oopt_MonadEtaExpansion = $_; next arg; };
2987 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
2988 && do { push(@HsC_flags, $_); next arg; };
2990 /^(-freturn-in-regs-threshold)(.*)$/
2991 && do { local($what) = $1;
2992 local($num) = &grab_arg_arg(*Args,$what, $2);
2993 if ($num < 2 || $num > 8) {
2994 die "Bad experimental flag: $_\n";
2996 $HscOut = '-C='; # force using C compiler
2997 push(@HsC_flags, "$what$num");
2998 push(@CcRegd_flags, "-D__STG_REGS_AVAIL__=$num");
3002 # --------------- Warnings etc. ------
3004 /^-fshow-import-specs/
3005 && do { push(@HsC_flags, $_); next arg; };
3007 /^-fsignatures-required/
3008 && do { push(@HsC_flags, $_); next arg; };
3010 /^-fwarn-(.*)$/ && do { push(@HsC_flags, $_); next arg; };
3012 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
3013 &squashHscFlag("-f$1");
3016 /^-W$/ && do { push(@HsC_flags, @MinusWOpts); next arg; };
3017 /^-Wall$/ && do { push(@HsC_flags, @MinusWallOpts); next arg; };
3018 /^(-Wnot|w)$/ && do { foreach (@Hsc_flags) {
3019 /^-fwarn-(.*)$/ && do { $_=''; };
3021 push(@HsC_antiflags, @StandardWarnings);
3024 # --------------- platform specific flags (for gcc mostly) ----------------
3026 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes,
3027 # for 2.6.x..?, does not apply for 2.7.2
3029 unshift(@CcBoth_flags, ( $_ ));
3032 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
3033 && do { # for GCC for SPARCs
3034 unshift(@CcBoth_flags, ( $_ ));
3037 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
3038 $StolenX86Regs = $1;
3041 #*************** ... and lots of debugging ones (form: -d* )
3043 # -d(no-)core-lint is done this way so it is turn-off-able.
3044 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
3045 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
3046 # Ditto for STG lint
3047 /^-dstg-lint/ && do { $StgLint = '-dstg-lint'; next arg; };
3048 /^-dno-stg-lint/ && do { $StgLint = ''; next arg; };
3050 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
3051 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
3052 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
3053 /^-dshow-rn-stats/ && do { push(@HsC_flags, $_); next arg; };
3054 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
3055 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
3056 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
3057 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
3059 #*************** ... and now all these -R* ones for its runtime system...
3061 /^-Rscale-sizes?(.*)/ && do {
3062 $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1);
3065 /^(-H|-Rmax-heapsize)(.*)/ && do {
3066 local($heap_size) = &grab_arg_arg(*Args,$1, $2);
3067 if ($heap_size =~ /(\d+)[Kk]$/) {
3068 $heap_size = $1 * 1000;
3069 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
3070 $heap_size = $1 * 1000 * 1000;
3071 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
3072 $heap_size = $1 * 1000 * 1000 * 1000;
3074 if ($heap_size <= 0) {
3075 print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n";
3076 $Specific_heap_size = 0;
3078 # if several heap sizes given, take the largest...
3079 } elsif ($heap_size >= $Specific_heap_size) {
3080 $Specific_heap_size = $heap_size;
3082 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n";
3086 /^(-K|Rmax-(stk|stack)size)(.*)/ && do {
3088 local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3);
3089 if ($stk_size =~ /(\d+)[Kk]$/) {
3090 $stk_size = $1 * 1000;
3091 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
3092 $stk_size = $1 * 1000 * 1000;
3093 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
3094 $stk_size = $1 * 1000 * 1000 * 1000;
3096 if ($stk_size <= 0) {
3097 print STDERR "$Pgm: resetting stack-size to zero!!! $stk_size\n";
3098 $Specific_stk_size = 0;
3100 # if several stack sizes given, take the largest...
3101 } elsif ($stk_size >= $Specific_stk_size) {
3102 $Specific_stk_size = $stk_size;
3104 print STDERR "$Pgm: ignoring stack-size-setting option ($flag $stk_size)...not the largest seen\n";
3108 /^-Rgc-stats$/ && do { $CollectingGCstats++;
3109 # the two RTSs do this diff ways; we will try to compensate
3112 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
3114 #---------- C high-level assembler (gcc) -------------------------------
3115 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
3117 # -dgcc-lint is a useful way of making GCC very fussy.
3118 # From alan@spri.levels.unisa.edu.au (Alan Modra).
3119 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
3120 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
3121 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
3123 # inject "#include <wurble>" into the compiler's C output!
3125 /^-#include(.*)/ && do {
3126 local($to_include) = &grab_arg_arg(*Args,'-#include', $1);
3127 push(@CcInjects, "#include $to_include\n");
3130 #---------- Linker (gcc, really) ---------------------------------------
3132 /^-static$/ && do { push(@Ld_flags, $_); next arg; };
3134 #---------- mixed cc and linker magic ----------------------------------
3135 # this optimisation stuff is finally sorted out later on...
3137 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
3139 /^-O[1-2]?$/ && do {
3140 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
3141 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
3143 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
3146 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
3148 /^-Ofile(.*)/ && do {
3150 local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1);
3151 @HsC_minusO3_flags = ();
3153 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
3156 s/\#.*//; # death to comments
3157 s/[ \t]+//g; # death to whitespace
3158 next if /^$/; # ditto, blank lines
3159 s/([()*{}])/\\$1/g; # protect shell metacharacters
3161 push(@CcBoth_flags, $1);
3163 push(@HsC_minusO3_flags, $_);
3169 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
3170 # in the consistency info
3174 #---------- linking .a file --------------------------------------------
3176 /^-Main(.*)/ && do {
3177 # specifies main or mainPrimIO to be linked
3181 #---------- catch unrecognized flags -----------------------------------
3184 print STDERR "$Pgm: unrecognised option: $_\n";
3190 } # end of processArgs