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 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}";
141 $InstSysLibDir = ( $INSTALLING ) ? "${InstLibDirGhc}/hslibs" : "$TopPwd/hslibs";
143 $Status = 0; # just used for exit() status
146 # set up signal handler
147 sub quit_upon_signal { &tidy_up_and_die(1, ''); }
148 $SIG{'INT'} = 'quit_upon_signal';
149 $SIG{'QUIT'} = 'quit_upon_signal';
151 # where to get "require"d .prl files at runtime (poor man's dynamic loading)
152 # (use LIB, not DATA, because we can't be sure of arch-independence)
153 @INC = ( ( $INSTALLING ) ? $InstLibDirGhc
154 : "$TopPwd/${CURRENT_DIR}" );
156 if ( $ENV{'TMPDIR'} ) { # where to make tmp file names
157 $Tmp_prefix = ($ENV{'TMPDIR'} . "/ghc$$");
159 print STDERR "TMPDIR has not been set to anything useful!\n" if (${TMPDIR} eq '');
160 $Tmp_prefix ="${TMPDIR}/ghc$$"; # TMPDIR set via Makefile when booting..
161 $ENV{'TMPDIR'} = ${TMPDIR}; # set the env var as well
164 # Some shells run into real trouble when command line and environment
165 # gets big (e.g., cmd lines of >4K to /bin/sh causes havoc on our
166 # Solaris-2.5.1 boxes - even though sysconf(_SC_ARG_MAX) reports 1M ...).
167 # To work around any such */bin/sh* problems, we will scribble such
168 # awfully long command lines into a temp file and exec that temp file
169 # with $(REAL_SHELL) (don't use the SHELL variable directly as this
170 # will normally get you the wrong thing when the driver is invoked
171 # from within `make'). If the REAL_SHELL variable isn't set, you'll
172 # get SHELL. This is all a terrible hack. (in case you hadn't reached
173 # the same conclusion by now :-)
177 if ( ! $ENV{'REAL_SHELL'} ) {
178 $ENV{'REAL_SHELL'} = $ENV{'SHELL'};
181 @Files_to_tidy = (); # files we nuke in the case of abnormal termination
183 $Unlit = ( $INSTALLING ) ? "$InstLibExecDirGhc/unlit"
184 : "$TopPwd/${CURRENT_DIR}/${GHC_UNLIT}";
188 $Diff = $CONTEXT_DIFF;
193 $HsCpp = # but this is re-set to "cat" (after options) if -cpp not seen
194 ( $INSTALLING ) ? "$InstLibExecDirGhc/hscpp"
195 : "$TopPwd/${CURRENT_DIR}/${GHC_HSCPP}";
198 $genSPECS_flag = ''; # See ../utils/hscpp/hscpp.prl
199 $HsC = ( $INSTALLING ) ? "$InstLibExecDirGhc/hsc"
200 : "$TopPwd/${CURRENT_DIR}/${GHC_HSC}";
202 # For PVM fiends only
203 $SysMan = ( $INSTALLING ) ? "$InstLibExecDirGhc/SysMan"
204 : "$TopPwd/${CURRENT_DIR}/${GHC_SYSMAN}";
209 # HsC_rts_flags: if we want to talk to the LML runtime system
210 # NB: we don't use powers-of-2 sizes, because this may do
211 # terrible things to cache behavior.
213 $Specific_heap_size = 6 * 1000 * 1000;
214 $Specific_stk_size = 1000 * 1000;
215 $Scale_sizes_by = 1.0;
219 The variables set by @setupOptFlags@ represent parts of the
220 -O/-O2/etc ``templates,'' which are filled in later, using these.
221 These are the default values, which may be changed by user flags.
225 $Oopt_UnfoldingUseThreshold = '-fsimpl-uf-use-threshold3';
226 $Oopt_MaxSimplifierIterations = '-fmax-simplifier-iterations4';
227 $Oopt_PedanticBottoms = '-fpedantic-bottoms'; # ON by default
228 $Oopt_MonadEtaExpansion = '';
229 $Oopt_FinalStgProfilingMassage = '';
231 $Oopt_SpecialiseUnboxed = '';
232 $Oopt_DoSpecialise = ''; # ToDo:LATER: '-fspecialise';
233 $Oopt_FoldrBuild = 0; # *Off* by default!
234 $Oopt_FB_Support = ''; # was '-fdo-arity-expand';
235 # $Oopt_FoldrBuildWW = 0; # Off by default
236 $Oopt_FoldrBuildInline = ''; # was '-fdo-inline-foldr-build';
237 $Oopt_ShowSimplifierProgress = '';
238 } # end of setupOptFlags
240 # Assign defaults to these right away.
244 Things to do with C compilers/etc:
246 $CcRegd = $GHC_OPT_HILEV_ASM;
247 @CcBoth_flags = ('-S'); # flags for *any* C compilation
251 # those for all files,
252 # those only for .c files;
253 # those only for .hc files
255 @CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__');
256 @CcRegd_flags_c = ();
257 @CcRegd_flags_hc = ();
259 $As = ''; # "assembler" is normally GCC
262 $Lnkr = ''; # "linker" is normally GCC
265 # 'nm' is used for consistency checking (ToDo: mk-world-ify)
266 # ToDo: check the OS or something ("alpha" is surely not the crucial question)
267 $Nm = ($TargetPlatform =~ /^alpha-/) ? 'nm -B' : 'nm';
270 Warning packages that are controlled by -W and -Wall. The 'standard'
271 warnings that you get all the time are
273 -fwarn-overlapping-patterns
274 -fwarn-incomplete-patterns
276 these are turned off by -Wnot.
279 @StandardWarnings = ('-fwarn-overlapping-patterns',
280 '-fwarn-incomplete-patterns');
281 @MinusWOpts = (@StandardWarnings, '-fwarn-name-shadowing');
282 @MinusWallOpts = @MinusWOpts;
285 What options \tr{-user-setup-a} turn into (user-defined ``packages''
286 of options). Note that a particular user-setup implies a particular
287 Prelude ({\em including} its interface file(s)).
289 $BuildTag = ''; # default is sequential build w/ Appel-style GC
291 %BuildDescr = (# system ways begin
292 '', 'normal sequential',
296 '_mc', "$WAY_mc_NAME",
297 '_mr', "$WAY_mr_NAME",
298 '_mt', "$WAY_mt_NAME",
299 '_mp', "$WAY_mp_NAME",
300 '_mg', "$WAY_mg_NAME",
301 '_2s', "$WAY_2s_NAME",
302 '_1s', "$WAY_1s_NAME",
303 '_du', "$WAY_du_NAME",
321 '_B', "$WAY_B_NAME" );
323 # these are options that are "fed back" through the option processing loop
327 '_a', "$WAY_a_HC_OPTS",
328 '_b', "$WAY_b_HC_OPTS",
329 '_c', "$WAY_c_HC_OPTS",
330 '_d', "$WAY_d_HC_OPTS",
331 '_e', "$WAY_e_HC_OPTS",
332 '_f', "$WAY_f_HC_OPTS",
333 '_g', "$WAY_g_HC_OPTS",
334 '_h', "$WAY_h_HC_OPTS",
335 '_i', "$WAY_i_HC_OPTS",
336 '_j', "$WAY_j_HC_OPTS",
337 '_k', "$WAY_k_HC_OPTS",
338 '_l', "$WAY_l_HC_OPTS",
339 '_m', "$WAY_m_HC_OPTS",
340 '_n', "$WAY_n_HC_OPTS",
341 '_o', "$WAY_o_HC_OPTS",
342 '_A', "$WAY_A_HC_OPTS",
343 '_B', "$WAY_B_HC_OPTS",
346 '_p', "$WAY_p_HC_OPTS",
347 '_t', "$WAY_t_HC_OPTS",
348 '_u', "$WAY_u_HC_OPTS",
349 '_mc', "$WAY_mc_HC_OPTS",
350 '_mr', "$WAY_mr_HC_OPTS",
351 '_mt', "$WAY_mt_HC_OPTS",
352 '_mp', "$WAY_mp_HC_OPTS",
353 '_mg', "$WAY_mg_HC_OPTS",
354 '_2s', "$WAY_2s_HC_OPTS",
355 '_1s', "$WAY_1s_HC_OPTS",
356 '_du', "$WAY_B_HC_OPTS" );
360 Import/include directories (\tr{-I} options) are sufficiently weird to
361 require special handling.
364 @Import_dir = ('.'); #-i things
365 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
367 # where to look for interface files (system hi's, i.e., prelude and hslibs)
368 @SysImport_dir = ( $INSTALLING )
369 ? ( "$InstLibDirGhc/imports" )
370 : ( "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/required"
371 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/ghc"
372 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/glaExts"
373 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent" );
375 # We need to look in ghc/ and glaExts/ when searching for implicitly needed .hi files, but
376 # we should really *not* look there for explicitly imported modules.
378 $GhcVersionInfo = int($PROJECTVERSION * 100 + .5); # i.e., round (X.Y * 100)
379 $Haskell1Version = 4; # i.e., Haskell 1.4
382 @UserLibrary_dir= (); #-L things;...
383 @UserLibrary = (); #-l things asked for by the user
385 @SysLibrary_dir = ( ( $INSTALLING ) #-syslib things supplied by the system
387 : ( "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR"
388 , "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/gmp"
389 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR"
390 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/cbits"
393 @SysLibrary = (); # will be built up as we go along
395 $TopClosureFile # defaults to 1.2 one; will be mangled later
396 = ( $INSTALLING) ? "$InstLibDirGhc/TopClosureXXXX.o"
397 : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/main/TopClosureXXXX.o";
399 # make depend for Haskell
401 = ( $INSTALLING ) ? "$InstBinDirGhc/mkdependHS"
402 : "$TopPwd/$CURRENT_DIR/$GHC_UTILS_DIR/mkdependHS/mkdependHS";
404 @MkDependHS_flags = ();
406 # do_link flag should not be reset while rescanning the cmd-line.
408 $Specific_output_dir = ''; # set by -odir <dir>
409 $Specific_output_file = ''; # set by -o <file>; "-" for stdout
412 Function to initialise the per-compilation-unit globals that
413 are used to guide and control the invocation of the different phases.
416 sub initDriverGlobals {
418 # reset the following options:
419 # RTS flags to use while compiling
421 @HsP_flags = (); # these are the flags destined solely for
422 # the flex/yacc parser
427 The optimisations/etc to be done by the compiler are {\em normally}
428 expressed with a \tr{-O} (or \tr{-O2}) flag, or by its absence.
431 $OptLevel = 0; # no -O == 0; -O == 1; -O2 == 2; -Ofile == 3
432 $MinusO2ForC = 0; # set to 1 if -O2 should be given to C compiler
433 $StolenX86Regs = 4; # **HACK*** of the very worst sort
437 @CcBoth_flags = ('-S'); # flags for *any* C compilation
440 # GCC flags: those for all files, those only for .c files; those only for .hc files
441 @CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__');
442 @CcRegd_flags_c = ();
443 @CcRegd_flags_hc = ();
445 @Import_dir = ('.'); #-i things
446 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
451 We are given a list of files with various presumably-known suffixes
452 (unknown-suffix files go straight to the linker). For each file, we
453 begin by assuming that we'll run every phase over it. However: (1)
454 global flags (\tr{-c}, \tr{-S}, etc.) tell us not to run any phase
455 past a certain point; and (2) the file's suffix tells us what phase to
456 start with. Linking is weird and kept track of separately.
458 Here are the initial defaults applied to all files:
460 $Cpp_flag_set = 0; # (hack)
461 $Only_preprocess_C = 0; # pretty hackish
462 $Only_preprocess_hc = 0; # ditto
463 $Only_generate_deps = 0; # "
464 $PostprocessCcOutput = 0;
466 # native code-gen or via C?
467 $HaveNativeCodeGen = $GhcWithNativeCodeGen;
468 $HscOut = '-C='; # '-C=' ==> .hc output; '-S=' ==> .s output; '-N=' ==> neither
470 if $HaveNativeCodeGen && $TargetPlatform =~ /^(alpha|sparc)-/;
471 # TEMP: disable x86 if $HaveNativeCodeGen && $TargetPlatform =~ /^(i386|alpha|sparc)-/;
472 $ProduceHi = '-hifile=';
477 $CollectingGCstats = 0;
478 $CollectGhcTimings = 0;
479 $DEBUGging = ''; # -DDEBUG and all that it entails (um... not really)
480 $PROFing = ''; # set to p or e if profiling
481 $PROFgroup = ''; # set to group if an explicit -Ggroup specified
482 $PROFauto = ''; # set to relevant hsc flag if -auto or -auto-all
483 $PROFcaf = ''; # set to relevant hsc flag if -caf-all
484 $PROFignore_scc = ''; # set to relevant parser flag if explicit sccs ignored
485 $UNPROFscc_auto = ''; # set to relevant hsc flag if forcing auto sccs without profiling
486 $TICKYing = ''; # set to t if compiling for ticky-ticky profiling
487 $PARing = ''; # set to p if compiling for PAR
488 $CONCURing = ''; # set to c if compiling for CONCURRENT
489 $GRANing = ''; # set to g if compiling for GRAN
490 $StkChkByPageFaultOK = 1; # may be set to 0 (false) for some builds
491 $Specific_hi_file = ''; # set by -ohi <file>; "-" for stdout
492 $Specific_dump_file = ''; # set by -odump <file>; "-" for stdout
493 $Using_dump_file = 0;
495 $Osuffix = ''; # default: use the normal suffix for that kind of output
497 $HiSuffix_prelude = '';
498 $Do_recomp_chkr = 0; # don't use the recompilatio checker unless asked
499 $Do_cc = -1; # a MAGIC indeterminate value; will be set to 1 or 0.
502 $Keep_hc_file_too = 0;
503 $Keep_s_file_too = 0;
504 $UseGhcInternals = 0; # if 1, may use GHC* modules
507 $Dump_parser_output = 0;
509 $Dump_asm_splitting_info = 0;
510 $NoImplicitPrelude = 0;
513 } # end of initDriverGlobals (Sigh)
515 # we split the argv passed to the driver into three:
520 # and files to be linked...
526 # cmd line options prefixing the unit we're compiling
531 We inject consistency-checking information into \tr{.hc} files (both
532 when created by the Haskell compiler and when compiled by the C
533 compiler), so that we can check that an executable is made from
534 consistently-built pieces. (The check is normally done just after
535 linking.) The checking is done by introducing/munging
536 \tr{what(1)}-style strings. Anyway, here are the relevant global
537 variables and their defaults:
539 $LinkChk = 1; # set to 0 if the link check should *not* be done
541 # major & minor version numbers; major numbers must always agree;
542 # minor disagreements yield a warning.
543 $HsC_major_version = 33;
544 $HsC_minor_version = 0;
545 $Cc_major_version = 36;
546 $Cc_minor_version = 1;
548 # options: these must always agree
549 $HsC_consist_options = ''; # we record, in this order:
550 # Build tag; debugging?
551 $Cc_consist_options = ''; # we record, in this order:
552 # Build tag; debugging?
555 %************************************************************************
557 \section[Driver-parse-argv]{Munge the command-line options}
559 %************************************************************************
561 Now slurp through the arguments.
564 &initDriverGlobals();
565 &splitCmdLine(@ARGV);
566 # Run through the cmd-line first time.
567 &processArgs(@Cmd_opts);
569 # Check to see if driver is only in the business
570 # to generate dependencies
571 if ( $Status == 0 && $Only_generate_deps ) {
573 push (@MkDependHS_flags, "-o$Osuffix") if $Osuffix;
574 push (@MkDependHS_flags, "-s$BuildTag") if $BuildTag;
575 push (@MkDependHS_flags, "-D__HASKELL1__=$Haskell1Version");
576 local($to_do) = "$MkDependHS @MkDependHS_flags -- @Cmd_opts -- @Input_file" ;
577 &run_something($to_do, 'Haskell dependencies');
581 # if there are several input files,
582 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
583 # (except if linking, of course)
585 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
586 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
587 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
588 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
589 print STDERR "\tPerhaps the -odir option will do what you want.\n";
594 # check for various pathological -o and -odir combinations...
595 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
596 if ($Specific_output_file eq '-') {
597 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
599 } else { # amalgamate...
600 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
601 # ToDo: check we haven't got a junk name now...
602 $Specific_output_dir = ''; # reset
606 # crash and burn if there were errors
608 print STDERR $ShortUsage;
613 %************************************************************************
615 \section[Driver-post-argv-mangling]{Setup after reading options}
617 %************************************************************************
619 %************************************************************************
621 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
623 %************************************************************************
625 We come now to the default ``wads of options'' that are turned on by
626 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
627 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
630 The user can also specify his/her own list of options in a file; in
631 that case, the work is already done (see stuff about @minusO3@,
634 GHC allows very precise control of what happens during a compilation.
635 Core-to-Core and STG-to-STG passes can be run in any order, as many
636 times as you like. Individual transformations can be turned on or
639 Sadly, however, there are some interdependencies \& Things You Must
640 Not Do. Here is the list.
644 \item[\tr{-fspecialise}:]
645 The specialiser must have dependency-analysed input; but if you run
646 the simplifier to do this, you must not let it toss away unused
647 bindings! (The typechecker conveys some specialisation info via
648 ``unused'' bindings...)
650 \item[\tr{-ffloat-inwards}:]
651 Floating inwards should be done before strictness analysis, because
652 the latter will give better results.
654 \item[\tr{-fstatic-args}:]
655 The static-arguments-transformation pass {\em must} have the
656 simplifier run right after it.
658 \item[\tr{-fcalc-inlinings[12]}:]
659 Not required, but there may be slight gains by re-simplifying after
660 this is done. (You could then \tr{-fcalc-inlinings} again, just for
663 \item[\tr{-ffull-laziness}:]
664 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
665 that's run. (Um, well, howzabout the simplifier just once more...)
670 \item[\tr{-fupdate-analysis}:]
671 It really really wants to be the last STG-to-STG pass that is run.
676 sub setupOptimiseFlags {
682 '-ffloat-lets-exposing-whnf',
683 '-ffloat-primops-ok',
686 # '-fdo-lambda-eta-expansion', # too complicated
688 # '-flet-to-case', # no strictness analysis, so...
689 $Oopt_PedanticBottoms,
690 # $Oopt_MonadEtaExpansion, # no thanks
692 # These two work fine, if you really want no simplification at all,
693 # for bizarre test reasons. But you get really terrible code if you use them,
694 # for example: let x = e in x
695 # with dozens of redundant thunks etc. So I'm leaving them out.
697 # '-fsimpl-uf-use-threshold0',
698 # '-fessential-unfoldings-only',
700 $Oopt_UnfoldingUseThreshold,
701 $Oopt_MaxSimplifierIterations,
702 $Oopt_ShowSimplifierProgress,
705 # '-ffull-laziness', # removed 95/04 WDP following Andr\'e's lead
707 $Oopt_FinalStgProfilingMassage
710 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
712 '-fdo-eta-reduction',
714 # initial simplify: mk specialiser happy: minimum effort please
718 '-fkeep-spec-pragma-ids', # required before specialisation
720 # I don't understand why we want -fessential-unfoldings-only here
721 # If we have it, the following nasty thing happens:
725 # where "*" means exported.
726 # In the essential-unfoldings pass we still substitute f for g
727 # but we don't substitute E for f first. So we get
731 # The g=f will get reverse-substituted later, but it's untidy.
733 # '-fessential-unfoldings-only',
734 # '-fsimpl-uf-use-threshold0',
736 '-fmax-simplifier-iterations1',
737 $Oopt_PedanticBottoms,
740 ($Oopt_DoSpecialise) ? (
741 '-fspecialise-overloaded',
742 $Oopt_SpecialiseUnboxed,
746 '-fsimplify', # need dependency anal after specialiser ...
747 '[', # need tossing before calc-inlinings ...
749 '-ffloat-lets-exposing-whnf',
750 '-ffloat-primops-ok',
754 # '-fdo-eta-reduction',
755 '-fdo-lambda-eta-expansion',
757 $Oopt_PedanticBottoms,
758 $Oopt_MonadEtaExpansion,
759 $Oopt_UnfoldingUseThreshold,
760 $Oopt_MaxSimplifierIterations,
761 $Oopt_ShowSimplifierProgress,
764 #LATER: '-fcalc-inlinings1', -- pointless for 2.01
766 # ($Oopt_FoldrBuildWW) ? (
767 # '-ffoldr-build-ww-anal',
768 # '-ffoldr-build-worker-wrapper',
772 # '-ffloat-lets-exposing-whnf',
773 # '-ffloat-primops-ok',
777 # '-fdo-eta-reduction',
778 # '-fdo-lambda-eta-expansion',
780 # $Oopt_PedanticBottoms,
781 # $Oopt_MonadEtaExpansion,
782 # $Oopt_UnfoldingUseThreshold,
783 # $Oopt_MaxSimplifierIterations,
784 # $Oopt_ShowSimplifierProgress,
788 # this pass-ordering sequence was agreed by Simon and Andr\'e
789 # (WDP 94/07, 94/11).
792 ($Oopt_FoldrBuild) ? (
793 '-ffoldr-build-on', # desugar list comprehensions for foldr/build
797 '-fignore-inline-pragma', # **** NB!
798 '-fdo-foldr-build', # NB
800 '-ffloat-lets-exposing-whnf',
801 '-ffloat-primops-ok',
805 # '-fdo-eta-reduction',
806 '-fdo-lambda-eta-expansion', # After full laziness
808 $Oopt_PedanticBottoms,
809 $Oopt_MonadEtaExpansion,
810 $Oopt_UnfoldingUseThreshold,
811 $Oopt_MaxSimplifierIterations,
812 $Oopt_ShowSimplifierProgress,
821 '-ffloat-lets-exposing-whnf',
822 '-ffloat-primops-ok',
826 '-fdo-eta-reduction',
827 '-fdo-lambda-eta-expansion',
829 ($Oopt_FoldrBuildInline),
830 # you need to inline foldr and build
831 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
832 # but do reductions if you see them!
833 $Oopt_PedanticBottoms,
834 $Oopt_MonadEtaExpansion,
835 $Oopt_UnfoldingUseThreshold,
836 $Oopt_MaxSimplifierIterations,
837 $Oopt_ShowSimplifierProgress,
845 '-ffloat-lets-exposing-whnf',
846 '-ffloat-primops-ok',
850 # '-fdo-eta-reduction',
851 '-fdo-lambda-eta-expansion',
853 '-flet-to-case', # Aha! Only done after strictness analysis
854 $Oopt_PedanticBottoms,
855 $Oopt_MonadEtaExpansion,
856 $Oopt_UnfoldingUseThreshold,
857 $Oopt_MaxSimplifierIterations,
858 $Oopt_ShowSimplifierProgress,
863 # Case-liberation for -O2. This should be after
864 # strictness analysis and the simplification which follows it.
868 # : "-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 ]" ),
870 # Final clean-up simplification:
875 '-ffloat-lets-exposing-whnf',
876 '-ffloat-primops-ok',
880 # '-fdo-eta-reduction',
881 '-fdo-lambda-eta-expansion',
884 '-fignore-inline-pragma', # **** NB!
885 $Oopt_FoldrBuildInline,
886 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
887 # but still do reductions if you see them!
888 $Oopt_PedanticBottoms,
889 $Oopt_MonadEtaExpansion,
890 $Oopt_UnfoldingUseThreshold,
891 $Oopt_MaxSimplifierIterations,
892 $Oopt_ShowSimplifierProgress,
897 #LATER: '-fcalc-inlinings2', -- pointless for 2.01
902 $Oopt_FinalStgProfilingMassage,
908 # SPECIAL FLAGS for -O2
916 Sort out what we're going to do about optimising. First, the @hsc@
917 flags and regular @cc@ flags to worry about:
919 if ( $OptLevel <= 0 ) {
921 # for this level, we tell the parser -fignore-interface-pragmas
922 push(@HsC_flags, '-fignore-interface-pragmas');
923 # and tell the compiler not to produce them
924 push(@HsC_flags, '-fomit-interface-pragmas');
926 &add_Hsc_flags( @HsC_minusNoO_flags );
927 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
929 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
931 &add_Hsc_flags( @HsC_minusO_flags );
932 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
933 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
934 # but it *is* useful in compiling the garbage collectors (so said
935 # Patrick many moons ago...).
937 } else { # -Ofile, then...
939 &add_Hsc_flags( @HsC_minusO3_flags );
940 push(@HsC_flags, $Oopt_FinalStgProfilingMassage) if $Oopt_FinalStgProfilingMassage;
942 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
945 } # setupOptimiseFlags
949 %************************************************************************
951 \subsection{Check for consistency, etc.}
953 %************************************************************************
955 Sort out @$BuildTag@, @$PROFing@, @$CONCURing@, @$PARing@,
956 @$GRANing@, @$TICKYing@:
958 sub setupBuildFlags {
961 # PROFILING stuff after argv mangling:
963 # warn about any scc exprs found (in case scc used as identifier)
964 push(@HsP_flags, '-W');
966 # add -auto sccs even if not profiling !
967 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
970 push(@HsC_flags, $PROFauto) if $PROFauto;
971 push(@HsC_flags, $PROFcaf) if $PROFcaf;
972 #push(@HsC_flags, $PROFdict) if $PROFdict;
974 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
976 push(@HsP_flags, (($PROFignore_scc) ? $PROFignore_scc : '-S'));
978 if ( $SplitObjFiles ) {
979 # can't split with cost centres -- would need global and externs
980 print STDERR "$Pgm: WARNING: splitting objects when profiling will *BREAK* if any _scc_s are present!\n";
981 # (but it's fine if there aren't any _scc_s around...)
982 # $SplitObjFiles = 0; # unset
983 #not an error: for now: $Status++;
986 #if ( $BuildTag ne '' ) {
987 # local($b) = $BuildDescr{$BuildTag};
988 # if ($CONCURing eq 'c') { print STDERR "$Pgm: Can't mix $b with -concurrent.\n"; exit 1; }
989 # if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
990 # if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
991 # if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
993 # # ok to have a user-way profiling build
994 # # eval the profiling opts ... but leave user-way BuildTag
995 # if ($PROFing eq 'p') { &processArgs(split(' ', $SetupOpts{'_p'})); } # eval($EvaldSetupOpts{'_p'}); }
997 if ( $PROFing eq 'p' ) {
998 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
999 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
1000 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
1001 $BuildTag = ($CONCURing eq 'c') ? '_mr' : '_p' ; # possibly "profiled concurrent"...
1003 } elsif ( $CONCURing eq 'c' ) {
1004 if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix -concurrent with -parallel.\n"; exit 1; }
1005 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -concurrent with -gransim.\n"; exit 1; }
1006 $BuildTag = ($TICKYing eq 't') ? '_mt' : '_mc' ; # possibly "ticky concurrent"...
1007 # "profiled concurrent" already acct'd for...
1009 } elsif ( $PARing eq 'p' ) {
1010 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
1011 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
1014 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
1015 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
1019 } elsif ( $GRANing eq 'g' ) {
1020 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
1023 } elsif ( $TICKYing eq 't' ) {
1029 After the sanity checks, add flags to the necessary parts of the driver pipeline:
1032 if ( $BuildTag ne '' ) { # something other than normal sequential...
1034 local($Tag) = "${BuildTag}";
1035 $Tag =~ s/_//; # move the underscore to the back
1037 $HscOut = '-C='; # must go via C
1038 &processArgs(split(' ', $SetupOpts{$BuildTag}));
1039 # eval($EvaldSetupOpts{$BuildTag});
1043 Decide what the consistency-checking options are in force for this run:
1046 $HsC_consist_options = "${BuildTag},${DEBUGging}";
1047 $Cc_consist_options = "${BuildTag},${DEBUGging}";
1050 # Funny place to put it, but why not.
1052 if ( $HiSuffix_prelude eq '' ) {
1053 local($Tag) = "${BuildTag}";
1055 $Tag = "${Tag}_" if $Tag ne '';
1056 $HiSuffix_prelude="${Tag}hi";
1058 #push(@HsC_flags, "-hisuf-prelude=.${HiSuffix_prelude}"); # use appropriate Prelude .hi files
1059 #push(@HsC_flags, "-hisuf=.${HiSuffix}");
1064 %************************************************************************
1066 \subsection{Add on machine-specific C-compiler flags}
1068 %************************************************************************
1070 Shove on magical machine-specific options. We use \tr{unshift} to
1071 stick them on the {\em front} of the arrays, so that ``later''
1072 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
1074 Note: a few ``always apply'' flags were set at the very beginning.
1079 if ($TargetPlatform =~ /^alpha-/) {
1080 # we know how to *mangle* asm for alpha
1081 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1082 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1083 unshift(@CcBoth_flags, ('-static'));
1085 } elsif ($TargetPlatform =~ /^hppa/) {
1086 # we know how to *mangle* asm for hppa
1087 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1088 unshift(@CcBoth_flags, ('-static'));
1090 # We don't put in '-mlong-calls', because it's only
1091 # needed for very big modules (sigh), and we don't want
1092 # to hobble ourselves further on all the other modules
1095 # [Dated comment (gcc-2.6.x?), -mlong-calls is no longer
1096 # a supported gcc HPPA flag]
1097 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
1098 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
1099 # (very nice, but too bad the HP /usr/include files don't agree.)
1101 } elsif ($TargetPlatform =~ /^i386-/) {
1102 # we know how to *mangle* asm for X86
1103 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1104 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK && $TargetPlatform !~ /nextstep/;
1105 # I do not know how to do STACK_CHECK_BY_PAGE_FAULT
1106 # on NeXTs (my fault, not theirs), so I don't.
1109 # -fno-defer-pop : basically the same game as for m68k
1111 # -fomit-frame-pointer : *must* ; because we're stealing
1112 # the fp (%ebp) for our register maps. *All* register
1113 # maps (in MachRegs.lh) must steal it.
1115 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1116 unshift(@CcRegd_flags, '-fomit-frame-pointer');
1117 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1119 } elsif ($TargetPlatform =~ /^m68k-/) {
1120 # we know how to *mangle* asm for m68k
1121 unshift (@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1122 unshift (@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK && $TargetPlatform !~ /nextstep/;
1123 # I do not know how to do STACK_CHECK_BY_PAGE_FAULT
1124 # on NeXTs (my fault, not theirs), so I don't.
1127 # -fno-defer-pop : for the .hc files, we want all the pushing/
1128 # popping of args to routines to be explicit; if we let things
1129 # be deferred 'til after an STGJUMP, imminent death is certain!
1131 # -fomit-frame-pointer : *don't*
1132 # It's better to have a6 completely tied up being a frame pointer
1133 # rather than let GCC pick random things to do with it.
1134 # (If we want to steal a6, then we would try to do things
1135 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1137 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1138 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1139 # maybe gives reg alloc a better time
1140 # also: -fno-defer-pop is not sufficiently well-behaved without it
1142 } elsif ($TargetPlatform =~ /^mips-/) {
1143 # we (hope to) know how to *mangle* asm for MIPSen
1144 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1145 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1146 unshift(@CcBoth_flags, ('-static'));
1148 } elsif ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1149 # we know how to *mangle* asm for PowerPC
1150 # :-( unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1151 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1152 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1153 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1154 } elsif ($TargetPlatform =~ /^sparc-/) {
1155 # we know how to *mangle* asm for SPARC
1156 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1157 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1160 } # end of setupMachOpts
1163 %************************************************************************
1165 \subsection{Set up for warnings}
1167 %************************************************************************
1169 Several warnings are turned on by default. These are supposed to be
1170 the 'I'm pretty sure you've made a mistake here' kind of warnings.
1171 The rest are turned on by the -W and -Wall options, or individually
1172 via their -fwarn and -fno-warn flags.
1175 sub setupWarningFlags {
1176 &add_Hsc_flags( @StandardWarnings );
1180 Same unshifting magic, but for special linker flags.
1182 The configure script determines whether the object file symbol tables
1183 have a leading underscore, and sets @LeadingUnderscore@ accordingly.
1184 (The driver script `sees' the setting of the @LeadingUnderscore@
1185 by having the Makefile prepend it).
1189 local($uscore) = ( ${LeadingUnderscore} eq 'YES' ) ? '_' : '';
1192 (($Ld_main) ? ( '-u', "${uscore}Main_" . $Ld_main . '_closure' ) : ()));
1194 ( '-u', "${uscore}PrelBase_Z91Z93_closure" # i.e., []
1195 ,'-u', "${uscore}PrelBase_IZh_static_info"
1196 ,'-u', "${uscore}PrelBase_CZh_static_info"
1197 ,'-u', "${uscore}PrelBase_False_inregs_info"
1198 ,'-u', "${uscore}PrelBase_True_inregs_info"
1199 ,'-u', "${uscore}DEBUG_REGS"
1201 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1202 # sometimes we have lots of toc entries...
1203 # unshift(@Ld_flags, ('-Xlinker -bbigtoc -Xlinker -bnoquiet'));
1204 unshift(@Ld_flags, ('-Xlinker -bbigtoc'));
1207 } # end of setupLinkOpts
1211 %************************************************************************
1213 \subsection{Set up include paths and system-library enslurpment}
1215 %************************************************************************
1217 Now that we know what garbage-collector, etc., are required, we can
1218 finalise our list of libraries to slurp through, and generally Get
1223 # default includes must be added AFTER option processing
1224 if ( ! $INSTALLING ) {
1225 push (@Include_dir, "$TopPwd/${CURRENT_DIR}/${GHC_INCLUDE_DIR}");
1227 push (@Include_dir, "$InstLibDirGhc/includes");
1228 push (@Include_dir, "$InstLibDirGhc/includes");
1230 } # end of setupIncPaths
1235 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1238 foreach $f (@SysLibrary) {
1239 next if $f =~ /_cbits/;
1240 $f .= $BuildTag if $f =~ /^-lHS/;
1243 # fiddle the TopClosure file name...
1244 $TopClosureFile =~ s/XXXX//;
1246 # Push library HSrts, plus boring clib bit
1247 push(@SysLibrary, "-lHSrts${BuildTag}");
1248 push(@SysLibrary, '-lHSclib');
1250 # RTS compiled with cygwin32, uses the WinMM API
1251 # to implement the itimers, since cygwin.dll does not
1252 # support it. Only reqd. for `ways' that use itimers.
1254 push(@SysLibrary, '-lwinmm') if $BuildTag ne '' && $TargetPlatform eq 'i386-unknown-cygwin32';
1256 # Push the pvm libraries
1257 if ($BuildTag eq '_mp') {
1258 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1259 push(@SysLibrary, "-L$pvmlib", '-lpvm3', '-lgpvm3');
1260 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1261 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1262 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1263 push(@SysLibrary, '-lsocket', '-lnsl');
1267 # Push the GNU multi-precision arith lib; and the math library
1268 push(@SysLibrary, '-lgmp');
1269 push(@SysLibrary, '-lm');
1272 %************************************************************************
1274 \subsection{Check that this system was built to do what we are asking}
1276 %************************************************************************
1278 Before continuing we check that the appropriate build is available.
1281 #die "$Pgm: no BuildAvail?? $BuildTag\n" if $BuildDescr{$BuildTag} eq '' ; # sanity
1283 if ( $BuildDescr{$BuildTag} eq '' ) {
1284 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1285 "' \"build\" is not available with your GHC setup.\n";
1286 print STDERR "(It was not configured for it at your site.)\n";
1287 print STDERR $ShortUsage;
1291 } # end of setupSyslibs
1295 %************************************************************************
1297 \subsection{Final miscellaneous setup bits before we start going}
1299 %************************************************************************
1301 Record largest specific heapsize, if any.
1303 sub setupHeapStackSize {
1304 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1305 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1306 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1307 push(@HsC_rts_flags, "-K$Specific_stk_size");
1311 If no input or link files seen, then we let 'em feed in stdin; this is
1312 mainly for debugging.
1316 if ($#Input_file < 0 && $#Link_file < 0) {
1317 @Input_file = ( '-' );
1319 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1320 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n" if -t;
1321 while (<STDIN>) { print INF $_; }
1322 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1327 Tell the world who we are, if they asked.
1329 print STDERR "${PROJECTNAME}, version ${PROJECTVERSION}, patchlevel ${PROJECTPATCHLEVEL}\n"
1333 %************************************************************************
1335 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1337 %************************************************************************
1339 Process the input files; don't continue with linking if there are
1340 problems (global variable @$Status@ non-zero).
1342 foreach $ifile (@Input_file) {
1343 &ProcessInputFile($ifile);
1346 if ( $Status > 0 ) { # don't link if there were errors...
1347 print STDERR $ShortUsage;
1352 # append last minute flags linker and consistency flags
1359 Link if appropriate.
1362 local($libdirs) = '';
1364 # glue them together:
1365 push(@UserLibrary_dir, @SysLibrary_dir);
1367 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1369 # for a linker, use an explicitly given one, or the going C compiler ...
1370 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1372 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1373 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1375 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $TopClosureFile $libdirs @UserLibrary @SysLibrary";
1376 &run_something($to_do, 'Linker');
1378 # finally, check the consistency info in the binary
1379 local($executable) = $Files_to_tidy[0];
1380 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1383 # dynamically load consistency-chking code; then do it.
1384 require('ghc-consist.prl')
1385 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1387 &chk_consistency_info ( $executable );
1390 # if PVM parallel stuff, we do truly weird things.
1391 # Essentially: (1) move the executable over to where PVM expects
1392 # to find it. (2) create a script in place of the executable
1393 # which will cause the program to be run, via SysMan.
1394 if ( $PARing eq 'p' ) {
1395 local($pvm_executable) = $executable;
1396 local($pvm_executable_base);
1398 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1399 local($pwd) = `pwd`;
1401 $pwd =~ s/^\/tmp_mnt//;
1402 $pvm_executable = "$pwd/$pvm_executable";
1405 $pvm_executable =~ s|/|=|g; # make /s into =s
1406 $pvm_executable_base = $pvm_executable;
1408 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1409 . "/$pvm_executable";
1411 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1413 # OK, now create the magic script for "$executable"
1414 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1415 print EXEC <<EOSCRIPT1;
1416 eval 'exec perl -S \$0 \${1+"\$@"}'
1417 if \$running_under_some_shell;
1418 # =!=!=!=!=!=!=!=!=!=!=!
1419 # This script is automatically generated: DO NOT EDIT!!!
1420 # Generated by Glasgow Haskell, version ${PROJECTVERSION} ${PROJECTPATCHLEVEL}
1422 \$pvm_executable = '$pvm_executable';
1423 \$pvm_executable_base = '$pvm_executable_base';
1424 \$SysMan = '$SysMan';
1427 print EXEC <<\EOSCRIPT2;
1428 # first, some magical shortcuts to run "commands" on the binary
1430 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1432 system("$cmd $pvm_executable");
1436 # OK, really run it; process the args first
1437 $ENV{'PE'} = $pvm_executable_base;
1439 $nprocessors = 2; # the default
1443 # ToDo: handle --RTS
1444 args: while ($a = shift(@ARGV)) {
1445 if ( $a eq '+RTS' ) {
1447 } elsif ( $a eq '-RTS' ) {
1450 if ( $a eq '-d' && $in_RTS_args ) {
1452 } elsif ( $a =~ /^-N(\d+)/ && $in_RTS_args ) {
1455 push(@nonPVM_args, $a);
1459 local($return_val) = 0;
1460 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
1462 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
1465 close(EXEC) || die "Failed closing $executable\n";
1466 chmod 0755, $executable;
1470 # that... that's all, folks!
1472 exit $Status; # will still be 0 if all went well
1475 %************************************************************************
1477 \section[Driver-do-one-file]{How to process a single input file}
1479 %************************************************************************
1482 sub ProcessInputFile {
1483 local($ifile) = @_; # input file name
1484 local($ifile_root); # root of or basename of input file
1485 local($ofile_target); # ultimate output file we hope to produce
1486 # from input file (need to know for recomp
1487 # checking purposes)
1488 local($hifile_target);# ditto (but .hi file)
1491 Handle the weirdity of input from stdin.
1493 if ($ifile ne '-') {
1494 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1495 $ofile_target = # may be reset later...
1496 ($Specific_output_file ne '' && ! $Do_lnkr)
1497 ? $Specific_output_file
1498 : &odir_ify($ifile_root, 'o');
1499 $hifile_target= ($Specific_hi_file ne '')
1501 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1502 # NB: may change if $ifile_root isn't module name (??)
1504 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1505 $ifile_root = '_stdin';
1506 $ofile_target = '_stdout'; # gratuitous?
1507 $hifile_target= '_stdout'; # ditto?
1511 We need to decide what phases of the compilation system we will run
1512 over this file. The defaults are the ones established when processing
1513 flags. (That established what the last phase run for all files is.)
1515 We do the pre-recompilation-checker phases here; the rest later.
1519 Look at the suffix and decide what initial phases of compilation may
1520 be dropped off for this file. Also the rather boring business of
1521 which files are coming-in/going-out.
1523 Again, we'll do the post-recompilation-checker parts of this later.
1525 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1526 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1529 # names of the files to stuff between phases
1530 # defaults are temporaries
1531 local($in_lit2pgm) = $ifile;
1532 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1533 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1534 local($hsc_hi) = "$Tmp_prefix.hi";
1535 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1536 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1537 local($as_out) = $ofile_target;
1539 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
1541 # OK, let's strip off some literate junk..
1543 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
1545 $lit2pgm_hscpp = $ifile;
1551 # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas
1552 &check_for_source_options($lit2pgm_hscpp,$ifile);
1554 # Options found in the source file take a back seat, i.e., we scan
1555 # them first. Only process the command line again if source file
1556 # contained anything of interest *or* there's more than one
1557 # input file (we have to reset the options).
1559 if ( $#Input_file >= 0 || $#File_options >= 0) {
1560 #@File_options = (@File_options, @Cmd_opts);
1562 # Now process the command line
1563 &initDriverGlobals();
1564 &processArgs((@File_options,@Cmd_opts));
1565 print STDERR "\nEffective command line: " .
1566 join(' ',(@File_options,@Cmd_opts)) . "\n" if $Verbose;
1569 # Having got the effective command line scanned, set up
1570 # the various options in prep for some real work.
1572 # check the sanity of the BuildTag we're about to use,
1573 # and if needs be, add some more flags and setup to
1574 # the different phases.
1577 &setupOptimiseFlags();
1580 &setupWarningFlags();
1581 &setupHeapStackSize();
1584 # These two variables need to be set after the
1585 # command-line has been processed and the build options
1586 # have be seen set up. This is because command-line options
1587 # can control whether to compile vias C or not.
1589 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1591 : ( ($HscOut eq '-C=') ? 1 : 0 );
1592 local($do_as) = $Do_as;
1593 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1595 if ($Only_preprocess_hc) { # stop after having run $Cc -E
1598 if ($Only_preprocess_C) { # stop after having run $hscpp
1599 $do_hsc=0; $do_cc = 0; $do_as=0;
1600 } elsif ($ifile =~ /.lhs$/ || $ifile =~ /.hs$/ ) {
1602 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
1603 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1605 } elsif ($ifile =~ /\.c$/) {
1606 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1607 $hsc_out = $ifile; $is_hc_file = 0;
1608 } elsif ($ifile =~ /\.s$/) {
1609 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
1611 } else { # don't know what it is, but nothing to do herein...
1612 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
1615 # hack to avoid running hscpp
1616 $HsCpp = $Cat if ! $Cpp_flag_set;
1618 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) if $do_hscpp;
1622 We now think about whether to run hsc/cc or not (when hsc produces .s
1623 stuff, it effectively takes the place of both phases).
1625 To get the output file name right: for each phase that we are {\em
1626 not} going to run, set its input (i.e., the output of its preceding
1627 phase) to @"$ifile_root.<suffix>"@.
1630 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
1633 # Warning issued if -keep-hc-file-too is used without
1634 # -fvia-C (or the equivalent)
1636 if ( $HscOut ne '-C=' && $Keep_hc_file_too ) {
1637 print STDERR "$Pgm: warning: Native code generator to be used, -keep-hc-file-too will be ignored\n";
1640 if (! $do_cc && ! $do_as) { # stopping after hsc
1641 $hsc_out = ($Specific_output_file ne '')
1642 ? $Specific_output_file
1643 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
1645 $ofile_target = $hsc_out; # reset
1648 if (! $do_as) { # stopping after gcc (or hsc)
1649 $cc_as = ($Specific_output_file ne '')
1650 ? $Specific_output_file
1651 : &odir_ify($ifile_root, ( $Only_preprocess_hc ) ? 'i' : 's');
1653 $ofile_target = $cc_as; # reset
1659 Now the Haskell compiler, C compiler, and assembler
1663 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
1664 $ofile_target, $hifile_target);
1668 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
1669 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root) if ! $Only_preprocess_hc;
1672 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
1674 # save a copy of the .s file..
1675 &saveIntermediate($ifile_root , "s" , $cc_as) if ($do_as && $Keep_s_file_too);
1676 &runAs($as_out, $ifile_root) if $do_as;
1679 Finally, decide what to queue up for linker input.
1681 # tentatively assume we will eventually produce linker input:
1682 push(@Link_file, &odir_ify($ifile_root, 'o'));
1684 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
1686 if ( $ifile !~ /\.(lhs|hs|hc|c|s)$/ && $ifile !~ /_hc$/ ) {
1687 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n"
1688 if $ifile !~ /\.a$/;
1690 # oops; we tentatively pushed the wrong thing; fix & do the right thing
1691 pop(@Link_file); push(@Link_file, $ifile);
1695 } # end of ProcessInputFile
1698 %************************************************************************
1700 \section[Driver-run-phases]{Routines to run the various phases}
1702 %************************************************************************
1706 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
1710 # Only add #line pragma if we're going to need it.
1711 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && " if ($Cpp_flag_set);
1712 $to_do .= "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
1714 push(@Files_to_tidy, $lit2pgm_hscpp );
1716 &run_something($to_do, 'literate pre-processor');
1722 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
1726 # Strictly speaking, echoing of the following line pragma is only required
1727 # on non-delit'ed input, as we've already added it during de-lit. However,
1728 # hscpp will then add a {-# LINE 1 "$lit2pgm_hsc" -} to the top of the file,
1729 # which is not very informative (but harmless). Hence, we uniformly have
1730 # {-# LINE 1 "$in_lit2pgm" #-} as the first line to all cpp'ed hsc input.
1732 $to_do = "echo '{-# LINE 1 \"$in_lit2pgm\" -}' > $hscpp_hsc && ";
1734 if ($HsCpp eq $Cat) {
1735 $to_do .= "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
1736 push(@Files_to_tidy, $hscpp_hsc );
1737 &run_something($to_do, 'Ineffective C pre-processor');
1739 local($includes) = '-I' . join(' -I',@Include_dir);
1740 $to_do .= "$HsCpp $Verbose $genSPECS_flag @HsCpp_flags -D__HASKELL1__=$Haskell1Version -D__GLASGOW_HASKELL__=$GhcVersionInfo $includes $lit2pgm_hscpp >> $hscpp_hsc";
1741 push(@Files_to_tidy, $hscpp_hsc );
1742 &run_something($to_do, 'Haskellised C pre-processor');
1745 if ( $Only_preprocess_C ) {
1746 $to_do = "$Cat $hscpp_hsc";
1747 &run_something($to_do, '');
1755 sub runHscAndProcessInterfaces {
1756 local($ifile, $hscpp_hsc, $ifile_root, $ofile_target, $hifile_target) = @_;
1758 # $ifile is the original input file
1759 # $hscpp_hsc post-unlit, post-cpp, etc., input file
1760 # $ifile_root input filename minus suffix
1761 # $ofile_target the output file that we ultimately hope to produce
1762 # $hifile_target the .hi file ... (ditto)
1764 local($source_unchanged) = 1;
1766 # Check if the source file is up to date relative to the target; in
1767 # that case we say "source is unchanged" and let the compiler bail out
1768 # early if the import usage information allows it.
1770 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
1771 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
1773 # The informational messages below are now conditional on -v being set -- SOF
1774 if ( $ofile_target ne "_stdin.s" && ! -f $ofile_target ) {
1775 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n" if $Verbose;
1776 $source_unchanged = 0;
1779 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
1780 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
1782 if ( $hifile_target ne "_stdout" && ! -f $hifile_target ) {
1783 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n" if $Verbose;
1784 $source_unchanged = 0;
1787 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
1788 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
1790 if ( $ofile_target ne "_stdin.s" && $i_mtime > $o_mtime) {
1791 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n" if $Verbose;
1792 $source_unchanged = 0;
1795 # So if source_unchanged is still "1", we pass on the good news to the compiler
1796 # The -recomp flag can disable this, forcing recompilation
1797 if ($Do_recomp_chkr && $source_unchanged) {
1798 push(@HsC_flags, '-fsource-unchanged');
1803 &runHsc($ifile_root, $hsc_out, $hsc_hi, $going_interactive);
1805 # See if it bailed out early, saying nothing needed doing.
1806 # We work this out by seeing if it created an output .hi file
1808 if ( ! -f $hsc_hi && $ProduceHi !~ /-nohifile=/ ) {
1809 # Doesn't exist, so we bailed out early.
1810 # Tell the C compiler and assembler not to run
1811 $do_cc = 0; $do_as = 0;
1813 # Update dependency info, touch both object file and
1814 # interface file, so that the following invariant is
1817 # a dependent module's interface file should after recompilation
1818 # checking be newer than the interface files of its imports.
1820 # That is, if module A's interface file changes, then module B
1821 # (which import from A) needs to be checked.
1822 # If A's change does not affect B, which causes the compiler to bail
1823 # out early, we still need to touch the interface file of B. The reason
1824 # for this is that B may export A's interface.
1826 &run_something("touch $ofile_target",
1827 "Touch $ofile_target, to propagate dependencies") if $HscOut ne '-N=';
1828 &run_something("touch $hifile_target",
1829 "Touch $hifile_target, to propagate dependencies") if $ProduceHi =~ /-nohifile=/ ;
1833 # Didn't bail out early (new .hi file) so we thunder on
1835 # If non-interactive, heave in the consistency info at the end
1836 # NB: pretty hackish (depends on how $output is set)
1837 if ( ! $going_interactive ) {
1838 if ( $HscOut eq '-C=' ) {
1839 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
1841 } elsif ( $HscOut eq '-S=' ) {
1842 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
1843 $consist =~ s/,/./g;
1844 $consist =~ s/\//./g;
1845 $consist =~ s/-/_/g;
1846 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
1847 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
1849 &run_something($to_do, 'Pin on Haskell consistency info');
1853 # Interface-handling is important enough to live off by itself
1854 if ( $ProduceHi !~ /-nohifile=/ ) { # If we've produced one, process it.
1855 require('ghc-iface.prl') || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
1856 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
1858 # if we're going to split up object files,
1859 # we inject split markers into the .hc file now
1860 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
1861 &inject_split_markers ( $hsc_out );
1864 # save a copy of the .hc file, even if we are carrying on...
1865 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
1866 &saveIntermediate($ifile_root , "hc" , $hsc_out);
1876 local($ifile_root, $hsc_out, $hsc_hi, $going_interactive) = @_;
1878 # prepend comma to HsP flags (so hsc can tell them apart...)
1879 foreach $a ( @HsP_flags ) { $a = ",$a" unless $a =~ /^,/; }
1881 &makeHiMap() unless $HiMapDone;
1882 #print STDERR "HiIncludes: $HiIncludeString\n";
1883 push(@HsC_flags, "-himap=$HiIncludeString");
1885 # here, we may produce .hc/.s and/or .hi files
1886 local($output) = '';
1887 #@Files_to_tidy = ();
1889 if ( $going_interactive ) {
1890 # don't need .hi unless going to show it on stdout:
1891 $ProduceHi = '-nohifile=' if ! $HiOnStdout;
1892 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
1895 # set up for producing output/.hi; note that flag twiddling
1896 # may mean that nothing will actually be produced:
1897 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out";
1898 push(@Files_to_tidy, $hsc_hi, $hsc_out );
1900 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
1901 if ( $CollectingGCstats ) {
1902 push(@HsC_rts_flags, "-S$ifile_root.stat");
1903 push(@Files_to_tidy, "$ifile_root.stat");
1906 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
1907 # emit nofibbish time/bytes-alloc stats to stderr;
1908 # see later .stat file post-processing
1909 print STDERR "warning: both -Rgc-stats and -Rghc-timing used, -Rghc-timing wins." if $CollectingGCstats;
1910 push(@HsC_rts_flags, "-s$Tmp_prefix.stat");
1911 push(@Files_to_tidy, "$Tmp_prefix.stat");
1915 if ($Specific_dump_file ne '') {
1916 $dump = "2>> $Specific_dump_file";
1917 $Using_dump_file = 1;
1921 $to_do = "$HsC @HsP_flags ,$hscpp_hsc $dump @HsC_flags $CoreLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
1922 &run_something($to_do, 'Haskell compiler');
1924 # finish business w/ nofibbish time/bytes-alloc stats
1925 &process_ghc_timings() if $CollectGhcTimings;
1929 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
1930 of (module-name, pathname) pairs, one per line, separated by a space.
1933 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1937 # collect in %HiMap; write later; also used elsewhere in driver
1939 local($mod, $path, $d, $e);
1941 # reset the global variables:
1943 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1945 foreach $d ( @Import_dir ) {
1946 if ($HiIncludeString) {
1947 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix}";
1949 $HiIncludeString = "$d%.${HiSuffix}";
1954 foreach $d ( @SysImport_dir ) {
1955 if ($HiIncludeString) {
1956 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix_prelude}";
1958 $HiIncludeString = "${d}%.${HiSuffix_prelude}";
1967 %************************************************************************
1969 \section[Driver-misc-utils]{Miscellaneous utilities}
1971 %************************************************************************
1973 %************************************************************************
1975 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
1977 %************************************************************************
1981 local($ofile,$def_suffix) = @_;
1983 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
1987 local($orig_file, $def_suffix) = @_;
1988 if ($Specific_output_dir eq '') { # do nothing
1989 &osuf_ify($orig_file, $def_suffix);
1991 local ($orig_file_only);
1992 ($orig_file_only = $orig_file) =~ s|.*/||;
1993 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
2000 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
2002 local($includes) = '-I' . join(' -I', @Include_dir);
2005 local($c_flags) = "@CcBoth_flags";
2006 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2008 # "input" files to use that are not in some weird directory;
2009 # to help C compilers grok .hc files [ToDo: de-hackify]
2010 local($cc_help) = "ghc$$.c";
2011 local($cc_help_s) = "ghc$$.s";
2014 $s_output = ($is_hc_file || $TargetPlatform =~ /^(powerpc|rs6000|hppa|i386)/) ? $cc_as_o : $cc_as;
2015 $c_flags .= " @CcRegd_flags";
2016 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2018 # C compiler won't like the .hc extension. So we create
2019 # a tmp .c file which #include's the needful.
2020 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2021 if ( $is_hc_file ) {
2023 #ifdef __STG_GCC_REGS__
2024 # if ! (defined(MAIN_REG_MAP) || defined(MARK_REG_MAP) || defined(SCAN_REG_MAP) || defined(SCAV_REG_MAP) || defined(FLUSH_REG_MAP))
2025 # define MAIN_REG_MAP
2028 #include "stgdefs.h"
2030 # user may have asked for #includes to be injected...
2031 print TMP @CcInjects if $#CcInjects >= 0;
2033 # heave in the consistency info
2034 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2036 # and #include the real source
2037 print TMP "#include \"$hsc_out\"\n";
2038 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2040 # Don't redirect stderr into intermediate file if slamming output onto stdout (e.g., with -E)
2041 local($fuse_stderr) = "2>&1" if ! $Only_preprocess_hc;
2042 local($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 )";
2043 # note: __GLASGOW_HASKELL__ is pointedly *not* #defined at the C level.
2045 if ( $Only_preprocess_hc ) { # HACK ALERT!
2046 $to_do =~ s/ -S\b//g;
2048 push(@Files_to_tidy, $cc_help, $cc_help_s, $s_output );
2049 $PostprocessCcOutput = 1 if ! $Only_preprocess_hc; # hack, dear hack...
2050 &run_something($to_do, 'C compiler');
2051 $PostprocessCcOutput = 0;
2052 if ( $Only_preprocess_hc ) {
2053 system("$Cat $Tmp_prefix.ccout");
2055 unlink($cc_help, $cc_help_s);
2061 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2063 if ( $is_hc_file ) {
2064 # dynamically load assembler-fiddling code, which we are about to use:
2065 require('ghc-asm.prl')
2066 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2069 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2072 # post-process the assembler [.hc files only]
2073 &mangle_asm($cc_as_o, $cc_as);
2077 #OLD: local($target) = 'oops';
2078 #OLD: $target = '-alpha' if $TargetPlatform =~ /^alpha-/;
2079 #OLD: $target = '-hppa' if $TargetPlatform =~ /^hppa/;
2080 #OLD: $target = '-old-asm' if $TargetPlatform =~ /^i386-/;
2081 #OLD: $target = '-m68k' if $TargetPlatform =~ /^m68k-/;
2082 #OLD: $target = '-mips' if $TargetPlatform =~ /^mips-/;
2083 #OLD: $target = '' if $TargetPlatform =~ /^powerpc-/;
2084 #OLD: $target = '-solaris' if $TargetPlatform =~ /^sparc-sun-solaris2/;
2085 #OLD: $target = '-sparc' if $TargetPlatform =~ /^sparc-sun-sunos4/;
2087 #OLD: if ( $target ne '' ) {
2088 #OLD: require("ghc-asm$target.prl")
2089 #OLD: || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm$target.prl!\n");
2090 #OLD: &mangle_asm($cc_as_o, "$cc_as-2"); # the OLD one!
2091 #OLD: &run_something("$Cmp -s $cc_as-2 $cc_as || $Diff $cc_as-2 $cc_as 1>&2 || exit 0",
2092 #OLD: "Diff'ing old and new mangled .s files"); # NB: to stderr
2095 } elsif ($TargetPlatform =~ /^hppa/) {
2096 # minor mangling of non-threaded files for hp-pa only
2097 require('ghc-asm.prl')
2098 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2099 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2101 } elsif ($TargetPlatform =~ /^powerpc|^rs6000/) {
2102 # minor mangling of non-threaded files for powerpcs and rs6000s
2103 require('ghc-asm.prl')
2104 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-powerpc.prl!\n");
2105 &mini_mangle_asm_powerpc($cc_as_o, $cc_as);
2106 } elsif ($TargetPlatform =~ /^i386/) {
2107 # extremely-minor OFFENSIVE mangling of non-threaded just one file
2108 require('ghc-asm.prl')
2109 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2110 &mini_mangle_asm_i386($cc_as_o, $cc_as);
2113 # save a copy of the .s file, even if we are carrying on...
2114 #if ($do_as && $Keep_s_file_too) {
2115 # &saveIntermediate($ifile_root , "s" , $cc_as);
2122 local($as_out, $ifile_root) = @_;
2124 local($asmblr) = ( $As ) ? $As : $CcRegd;
2126 if ( ! $SplitObjFiles ) {
2127 local($to_do) = "$asmblr -o $as_out -c @As_flags $cc_as";
2128 push(@Files_to_tidy, $as_out );
2129 &run_something($to_do, 'Unix assembler');
2131 } else { # more complicated split-ification...
2133 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2135 # If -odir is used, great, just pin it in front of the
2136 # generated split file names. If it hasn't been set, we
2137 # snatch it from the ifile_root.
2141 if ( $Specific_output_dir eq '' ) {
2142 $Specific_output_dir = ${ifile_root};
2145 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2146 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2147 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2148 push(@Files_to_tidy, $split_out );
2150 &run_something($to_do, 'Unix assembler');
2156 %************************************************************************
2158 \subsection[Driver-run-something]{@run_something@: Run a phase}
2160 %************************************************************************
2164 local($str_to_do, $tidy_name) = @_;
2166 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2167 print STDERR "$str_to_do\n" if $Verbose;
2169 if ($Using_dump_file) {
2170 open(DUMP, ">> $Specific_dump_file")
2171 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2172 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2174 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2177 local($return_val) = 0;
2179 if ( length($str_to_do) > 4000) {
2180 # 4000 - on the random side, just like the *real* ARG_MAX
2183 # With some shells, command lines of this length may
2184 # very well cause trouble. To safeguard against this, we squirrel the
2185 # command into a file and exec that.
2186 local ($sh) = $ENV{'REAL_SHELL'};
2187 print STDERR "Backup plan A: saving cmd line in ${Tmp_prefix}.sh and executing that with $sh\n" if $Verbose;
2188 open (TEMP, "> ${Tmp_prefix}.sh") ||
2189 &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.sh'\n");
2190 print TEMP "$Time $str_to_do\n";
2192 &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.sh'\n");
2193 system("$sh $Tmp_prefix.sh");
2196 unlink "${Tmp_prefix}.sh";
2198 system("$Time $str_to_do");
2202 if ( $PostprocessCcOutput ) { # hack, continued
2203 open(CCOUT, "< $Tmp_prefix.ccout")
2204 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2206 next if /attribute directive ignored/;
2207 next if /call-clobbered/;
2208 next if /from .*COptRegs\.lh/;
2209 next if /from .*(stg|rts)defs\.h:/;
2210 next if /from ghc\d+.c:\d+:/;
2211 next if /from .*\.lc/;
2212 next if /from .*SMinternal\.l?h/;
2213 next if /ANSI C does not support \`long long\'/;
2214 next if /warning:.*was declared \`extern\' and later \`static\'/;
2215 next if /warning: assignment discards \`const\' from pointer target type/;
2216 next if /: At top level:$/;
2217 next if /: In function \`.*\':$/;
2218 next if /\`ghc_cc_ID\' defined but not used/;
2221 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2224 if ($return_val != 0) {
2225 if ($Using_dump_file) {
2226 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2229 &tidy_up_and_die($return_val, '');
2231 $Using_dump_file = 0;
2235 %************************************************************************
2237 \subsection[Driver-ghc-timing]{Emit nofibbish GHC timings}
2239 %************************************************************************
2241 NB: nearly the same as in @runstdtest@ script.
2244 sub process_ghc_timings {
2245 local($StatsFile) = "$Tmp_prefix.stat";
2246 local($SysSpecificTiming) = 'ghc';
2248 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2249 local($max_live) = 0;
2250 local($tot_live) = 0; # for calculating residency stuff
2251 local($tot_samples) = 0;
2254 if (! /Minor/ && /^\s*\d+\s+\d+\s+(\d+)\s+\d+\.\d+\%/ ) {
2255 $max_live = $1 if $max_live < $1;
2259 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2261 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2262 $MaxResidency = $1; $ResidencySamples = $2;
2265 $GCs = $1 if /^\s*([0-9,]+) garbage collections? performed/;
2267 # The presence of -? in the following pattern is only there to
2268 # accommodate 0.29 && <= 2.05 RTS'
2269 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*-?(\d+\.\d\d)s elapsed\)/ ) {
2270 $InitTime = $1; $InitElapsed = $2;
2271 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2272 $MutTime = $1; $MutElapsed = $2;
2273 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2274 $GcTime = $1; $GcElapsed = $2;
2277 close(STATS) || die "Failed when closing $StatsFile\n";
2278 if ( $tot_samples > 0 ) {
2279 $ResidencySamples = $tot_samples;
2280 $MaxResidency = $max_live;
2281 $AvgResidency = int ($tot_live / $tot_samples) ;
2284 # warn about what we didn't find
2285 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2286 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2287 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2288 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2289 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2290 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2291 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2292 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2294 # things we didn't necessarily expect to find
2295 $MaxResidency = 0 unless defined($MaxResidency);
2296 $AvgResidency = 0 unless defined($AvgResidency);
2297 $ResidencySamples = 0 unless defined($ResidencySamples);
2300 $BytesAlloc =~ s/,//g;
2301 $MaxResidency =~ s/,//g;
2303 $InitTime =~ s/,//g;
2304 $InitElapsed =~ s/,//g;
2306 $MutElapsed =~ s/,//g;
2308 $GcElapsed =~ s/,//g;
2310 # print out what we found
2311 print STDERR "<<$SysSpecificTiming: ",
2312 "$BytesAlloc bytes, $GCs GCs, $AvgResidency/$MaxResidency avg/max bytes residency ($ResidencySamples samples), $InitTime INIT ($InitElapsed elapsed), $MutTime MUT ($MutElapsed elapsed), $GcTime GC ($GcElapsed elapsed)",
2313 " :$SysSpecificTiming>>\n";
2320 %************************************************************************
2322 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2324 %************************************************************************
2328 local($to_do) = "\n$Rm $Tmp_prefix*";
2329 if ( $Tmp_prefix !~ /^\s*$/ ) {
2330 print STDERR "$to_do\n" if $Verbose;
2335 sub tidy_up_and_die {
2336 local($return_val, $msg) = @_;
2338 # delete any files to tidy
2339 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2340 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2344 exit (($return_val == 0) ? 0 : 1);
2348 %************************************************************************
2350 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2352 %************************************************************************
2354 Some command-line arguments take an argument, e.g.,
2355 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2356 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2357 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2359 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2360 gobble the second argument (and probably set the heapsize to something
2364 local(*Args, $option, $rest_of_arg) = @_;
2366 if ($rest_of_arg ne '') {
2367 return($rest_of_arg);
2368 } elsif ($#Args >= 0) {
2369 local($temp) = $Args[0]; shift(@Args);
2372 print STDERR "$Pgm: no argument following $option option\n";
2383 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2385 foreach $f ( @HsC_antiflags ) {
2386 return(0) if $flag eq $f;
2388 # foreach $f ( @HsC_flags ) {
2389 # return(0) if $flag eq $f;
2394 sub squashHscFlag { # pretty terrible
2398 foreach $f ( @HsC_flags ) {
2399 if ($flag eq $f) { $f = ''; }
2407 foreach $f ( @flags ) {
2408 push( @HsC_flags, $f ) if &isntAntiFlag($f);
2413 Source files may have {-# OPTIONS ... #-} pragmas at the top, containing
2414 command line options we want to append to collection of commands specified
2415 directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell
2416 file for any such pragmas:
2419 sub check_for_source_options {
2420 local($file,$ifile) = @_;
2421 local($comment_start,$comment_end);
2423 if ($ifile =~ /\.hc$/ ||
2426 $ifile =~ /_s$/ ) { # `Real' C intermediate
2427 $comment_start = "/\\*";
2428 $comment_end = "\\*/";
2429 } else { # Assume it is a file containing Haskell source
2430 $comment_start = "{-#";
2431 $comment_end = "#-}";
2434 open(FILE,$file) || return(1); # No big loss
2437 if ( /^${comment_start} OPTIONS (.*)${comment_end}$/ ) {
2438 # add the options found at the back of the command line.
2439 local(@entries) = split(/\s+/,$1);
2440 print STDERR "Found OPTIONS " . join(' ',@entries) . " in $file\n" if $Verbose;
2441 push(@File_options, @entries);
2443 elsif ( /^$/ ) { # ignore empty lines
2446 elsif ( /^#line.+$/ ) { # ignore comment lines (unused..ToDo: rm )
2449 elsif ( /^{-# LINE.+$/ ) { # ignore line pragmas
2452 else { # stop looking, something non-empty / not
2453 # ${comment_start} OPTIONS .. ${comment_end} encountered.
2454 close(FILE);return(0);
2463 We split the initial argv up into three arrays:
2469 the reason for doing so is to be able to deal
2470 with {-# OPTIONS #-} pragma in source files properly.
2476 arg: while($_ = $args[0]) {
2478 # sigh, we have to deal with these -option arg specially here.
2479 /^-(tmpdir|odir|ohi|o|isuf|osuf|hisuf|hisuf-prelude|odump|syslib)$/ &&
2480 do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; };
2481 /^--?./ && do { push(@Cmd_opts, $_); next arg; };
2483 if (/\.([^_]+_)?[oa]$/) {
2484 push(@Link_file, $_);
2486 push(@Input_file, $_);
2489 # input files must exist:
2491 print STDERR "$Pgm: input file doesn't exist: $_\n";
2499 When saving an intermediate file (.hc or .s) away, we
2500 have to prefix any OPTIONS found in the original source file.
2503 sub saveIntermediate {
2504 local ($final,$suffix,$tmp)= @_ ;
2507 # $final -- root of where to park ${final}.${suffix}
2508 # $tmp -- temporary file where hsc put the intermediate file.
2510 # Delete the old file
2511 $to_do = "$Rm ${final}.${suffix}"; &run_something($to_do, "Removing old .${suffix} file");
2513 if ( $#File_options >= 0 ) { # OPTIONS found in Haskell source unit
2514 # Add OPTION comment to the top of the generated .${suffix} file
2515 open(TEMP, "> ${final}.${suffix}") || &tidy_up_and_die(1,"Can't open ${final}.${suffix}\n");
2516 print TEMP "/* OPTIONS " . join(' ',@File_options) . " */\n";
2518 print STDERR "Prepending OPTIONS: " . join(' ',@File_options) . " to ${final}.${suffix}\n" if $Verbose;
2520 $to_do = "$Cat $tmp >> ${final}.${suffix}";
2521 &run_something($to_do, "Saving copy of .${suffix} file");
2528 Command-line processor
2534 # can't use getopt(s); what we want is too complicated
2536 arg: while($_ = $Args[0]) {
2539 #---------- help -------------------------------------------------------
2540 if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; }
2542 #-----------version ----------------------------------------------------
2543 /^--version$/ && do { print STDERR "${PROJECTNAME}, version ${PROJECTVERSION}, patchlevel ${PROJECTPATCHLEVEL}\n"; exit $Status; };
2545 #---------- verbosity and such -----------------------------------------
2546 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
2548 #---------- what phases are to be run ----------------------------------
2549 /^-(no-)?recomp/ && do { $Do_recomp_chkr = ($1 eq '') ? 1 : 0; next arg; };
2551 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
2552 # change the global default:
2553 # we won't run cat; we'll run the real thing
2555 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
2557 # stop after generating C
2559 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
2560 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
2562 # leave out actual C generation (debugging) [also turns off interface gen]
2564 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
2565 # _do_ generate an interface; usually used as: -noC -hi
2567 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
2568 # don't generate an interface (even if generating C)
2570 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
2571 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
2572 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
2573 /^-keep-hi-diffs$/ && do { $Keep_HiDiffs = 1; next arg; };
2575 # show/disable diffs if the interface file changes
2577 /^-E$/ && do { push(@CcBoth_flags, '-E');
2578 $Only_preprocess_C = 1;
2579 $Do_as = 0; $Do_lnkr = 0; next arg; };
2580 # stop after preprocessing C
2581 /^-M$/ && do { $Only_generate_deps = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2582 # only generate dependency information.
2583 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
2584 # stop after generating assembler
2586 /^-c$/ && do { $Do_lnkr = 0; next arg; };
2587 # stop after generating .o files
2589 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
2590 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
2591 # don't do consistency-checking after a link
2593 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', '');
2594 $Tmp_prefix = "$Tmp_prefix/ghc$$";
2595 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
2597 # use an alternate directory for temp files
2599 #---------- redirect output --------------------------------------------
2601 # -o <file>; applies to the last phase, whatever it is
2602 # "-o -" sends it to stdout
2603 # if <file> has a directory component, that dir must already exist
2605 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', '');
2607 # Hack, of the worst sort: don't do validation of
2608 # odir argument if you're using -M (dependency generation).
2610 if ( ! $Only_generate_deps && ! -d $Specific_output_dir) {
2611 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
2616 /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', '');
2617 if ($Specific_output_file ne '-'
2618 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
2619 local($dir_part) = $1;
2620 if (! -d $dir_part) {
2621 print STDERR "$Pgm: no such directory: $dir_part\n";
2627 # NB: -isuf not documented yet (because it doesn't work yet)
2628 /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', '');
2629 if ($Isuffix =~ /\./ ) {
2630 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
2635 /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', '');
2636 if ($Osuffix =~ /\./ ) {
2637 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
2642 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
2643 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', '');
2644 if ($Specific_hi_file ne '-'
2645 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
2646 local($dir_part) = $1;
2647 if (! -d $dir_part) {
2648 print STDERR "$Pgm: no such directory: $dir_part\n";
2654 # The suffix to use when looking for interface files
2655 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', '');
2656 if ($HiSuffix =~ /\./ ) {
2657 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
2661 # ToDo: remove, not a `normal' user thing to do (should be automatic)
2662 /^-hisuf-prelude$/ && do { $HiSuffix_prelude = &grab_arg_arg(*Args,'-hisuf-prelude', '');
2663 if ($HiSuffix =~ /\./ ) {
2664 print STDERR "$Pgm: -hisuf-prelude suffix shouldn't contain a .\n";
2668 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', '');
2669 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
2670 local($dir_part) = $1;
2671 if (! -d $dir_part) {
2672 print STDERR "$Pgm: no such directory: $dir_part\n";
2678 #-------------- scc & Profiling Stuff ----------------------------------
2680 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
2683 # generate auto SCCs on top level bindings
2684 # -auto-all = all top level bindings
2685 # -auto = only top level exported bindings
2686 $PROFauto = ( /-all/ )
2687 ? '-fauto-sccs-on-all-toplevs'
2688 : '-fauto-sccs-on-exported-toplevs';
2691 /^-caf-all/ && do { # generate individual CAF SCC annotations
2692 $PROFcaf = '-fauto-sccs-on-individual-cafs';
2695 /^-ignore-scc$/ && do {
2696 # forces ignore of scc annotations even if profiling
2697 $PROFignore_scc = '-W';
2700 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
2703 /^-unprof-scc-auto/ && do {
2704 # generate auto SCCs on top level bindings when not profiling.
2705 # Used to measure optimisation effects of presence of sccs.
2706 $UNPROFscc_auto = ( /-all/ )
2707 ? '-fauto-sccs-on-all-toplevs'
2708 : '-fauto-sccs-on-exported-toplevs';
2711 #--------- ticky/concurrent/parallel -----------------------------------
2712 # we sort out the details a bit later on
2714 /^-concurrent$/ && do { $CONCURing = 'c'; next arg; }; # concurrent Haskell
2715 /^-gransim$/ && do { $GRANing = 'g'; next arg; }; # GranSim
2716 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
2717 /^-parallel$/ && do { $PARing = 'p'; next arg; }; # parallel Haskell
2719 #-------------- "user ways" --------------------------------------------
2721 (/^-user-setup-([a-oA-Z])$/ ) &&
2723 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
2725 local($stuff) = $UserSetupOpts{$BuildTag};
2726 local(@opts) = split(/\s+/, $stuff);
2728 # feed relevant ops into the arg-processing loop (if any)
2729 unshift(@Args, @opts) if $#opts >= 0;
2733 #---------- set search paths for libraries and things ------------------
2735 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
2736 # prepends the items to the list); -I is for including C .h files.
2738 /^-i$/ && do { @Import_dir = (); # import path cleared!
2739 @SysImport_dir = ();
2740 print STDERR "WARNING: import paths cleared by `-i'\n";
2743 /^-i(.*)/ && do { local(@new_items)
2744 = split( /:/, &grab_arg_arg(*Args,'-i', $1));
2745 unshift(@Import_dir, @new_items);
2748 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; };
2749 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; };
2750 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; };
2752 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1);
2753 print STDERR "$Pgm: no such system library (-syslib): $syslib\n",
2754 $Status++ unless $syslib =~ /^(hbc|ghc|posix|contrib)$/;
2756 unshift(@SysImport_dir,
2758 ? "$InstSysLibDir/$syslib/imports"
2759 : "$TopPwd/hslibs/$syslib/src");
2761 if ( ${INSTALLING} ) {
2762 push(@SysLibrary_dir,
2763 ("$InstSysLibDir"));
2765 push(@SysLibrary_dir,
2766 ("$TopPwd/hslibs/$syslib"
2767 ,"$TopPwd/hslibs/$syslib/cbits"));
2770 push(@SysLibrary, "-lHS$syslib");
2771 push(@SysLibrary, "-lHS${syslib}_cbits")
2772 unless $syslib eq 'contrib'; #HACK! it has no cbits
2776 #=======================================================================
2777 # various flags that we can harmlessly send to one program or another
2778 # (we will later "reclaim" some of the compiler ones now sent to gcc)
2779 #=======================================================================
2781 #---------- this driver itself (ghc) -----------------------------------
2782 # these change what executable is run for each phase:
2783 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
2784 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
2785 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
2786 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
2787 /^-pgma(.*)$/ && do { $As = $1; next arg; };
2788 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
2789 /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; };
2791 #---------- the get-anything-through opts (all pgms) -------------------
2792 # these allow arbitrary option-strings to go to any phase:
2793 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
2794 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
2795 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
2796 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
2797 /^-optcpp(.*)$/ && do { push(@Cpp_define, $1); $Only_preprocess_hc = ($1 eq "-E"); next arg; };
2798 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
2799 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
2800 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
2801 /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; };
2803 #---------- Haskell C pre-processor (hscpp) ----------------------------
2804 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; };
2805 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; };
2807 /^-genSPECS/ && do { $Cpp_flag_set = 1;
2808 $genSPECS_flag = $_;
2811 #---------- post-Haskell "assembler"------------------------------------
2812 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
2813 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
2815 #---------- Haskell compiler (hsc) -------------------------------------
2817 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
2818 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
2820 /^-fhaskell-1\.3$/ && do { next arg; }; # a no-op right now
2822 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
2824 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
2825 # don't do stack checking using page fault `trick'.
2827 /^-fstack-check$/ && do { $StkChkByPageFaultOK = 0; next arg; };
2829 # have the compiler proper generate concurrent code,
2830 # really only used when you want to configure your own
2831 # special user compilation way. (Use -concurrent when
2832 # compiling `Concurrent Haskell' programs).
2834 # (ditto for -fgransim, fscc-profiling and -fticky-ticky)
2836 /^-fconcurrent$/ && do { push(@HsC_flags,$_); next arg; };
2837 /^-fscc-profiling$/ && do { push(@HsC_flags,$_); next arg; };
2838 /^-fticky-ticky$/ && do { push(@HsC_flags,$_); next arg; };
2839 /^-fgransim$/ && do { push(@HsC_flags,$_); next arg; };
2841 /^-split-objs/ && do {
2842 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|rs6000|sparc)-/ ) {
2844 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
2849 push(@HsC_flags, "-fglobalise-toplev-names");
2850 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
2852 require('ghc-split.prl')
2853 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
2858 && do { push(@HsC_flags, $_);
2859 push(@HsP_flags, '-N');
2861 # push(@HsC_flags, '-fshow-import-specs');
2865 /^-fspeciali[sz]e-unboxed$/
2866 && do { $Oopt_DoSpecialise = '-fspecialise';
2867 $Oopt_SpecialiseUnboxed = '-fspecialise-unboxed';
2870 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
2871 /^-fno-speciali[sz]e$/
2872 && do { $Oopt_DoSpecialise = ''; next arg; };
2875 # Now the foldr/build options, which are *on* by default (for -O).
2878 && do { $Oopt_FoldrBuild = 1;
2879 $Oopt_FB_Support = '-fdo-arity-expand';
2883 /^-fno-foldr-build$/
2884 && do { $Oopt_FoldrBuild = 0;
2885 $Oopt_FB_Support = '';
2888 /^-fno-foldr-build-rule$/
2889 && do { $Oopt_FoldrBuild = 0;
2892 /^-fno-enable-tech$/
2893 && do { $Oopt_FB_Support = '';
2896 /^-fno-snapback-to-append$/
2897 && do { $Oopt_FoldrBuildInline .= ' -fdo-not-fold-back-append ';
2900 # --------------- Renamer -------------
2903 /^-fno-prune-tydecls$/ && do { push(@HsC_flags, $_); next arg; };
2904 /^-fno-prune-instdecls$/ && do { push(@HsC_flags, $_); next arg; };
2908 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
2909 /^-fvia-[cC]$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
2913 /^(-funfolding-use-threshold)(.*)$/
2914 && do { $Oopt_UnfoldingUseThreshold = $1 . &grab_arg_arg(*Args,$1, $2);
2917 /^(-fmax-simplifier-iterations)(.*)$/
2918 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2);
2920 /^(-fshow-simplifier-progress)/
2921 && do { $Oopt_ShowSimplifierProgress = $1;
2924 /^-fno-pedantic-bottoms$/
2925 && do { $Oopt_PedanticBottoms = ''; next arg; };
2927 /^-fdo-monad-eta-expansion$/
2928 && do { $Oopt_MonadEtaExpansion = $_; next arg; };
2930 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
2931 && do { push(@HsC_flags, $_); next arg; };
2933 /^(-freturn-in-regs-threshold)(.*)$/
2934 && do { local($what) = $1;
2935 local($num) = &grab_arg_arg(*Args,$what, $2);
2936 if ($num < 2 || $num > 8) {
2937 die "Bad experimental flag: $_\n";
2939 $HscOut = '-C='; # force using C compiler
2940 push(@HsC_flags, "$what$num");
2941 push(@CcRegd_flags, "-D__STG_REGS_AVAIL__=$num");
2945 # --------------- Warnings etc. ------
2947 /^-fshow-import-specs/
2948 && do { push(@HsC_flags, $_); next arg; };
2950 /^-fwarn-(.*)$/ && do { push(@HsC_flags, $_); next arg; };
2952 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
2953 &squashHscFlag("-f$1");
2956 /^-W$/ && do { push(@HsC_flags, @MinusWOpts); next arg; };
2957 /^-Wall$/ && do { push(@HsC_flags, @MinusWallOpts); next arg; };
2958 /^-Wnot$/ && do { foreach (@Hsc_flags) {
2959 /^-fwarn-(.*)$/ && do { $_=''; };
2961 push(@HsC_antiflags, @StandardWarnings);
2964 # --------------- platform specific flags (for gcc mostly) ----------------
2966 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes,
2967 # for 2.6.x..?, does not apply for 2.7.2
2969 unshift(@CcBoth_flags, ( $_ ));
2972 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
2973 && do { # for GCC for SPARCs
2974 unshift(@CcBoth_flags, ( $_ ));
2977 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
2978 $StolenX86Regs = $1;
2981 #*************** ... and lots of debugging ones (form: -d* )
2983 # -d(no-)core-lint is done this way so it is turn-off-able.
2984 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
2985 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
2986 # Ditto for STG lint
2987 /^-dstg-lint/ && do { $StgLint = '-dstg-lint'; next arg; };
2988 /^-dno-stg-lint/ && do { $StgLint = ''; next arg; };
2990 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
2991 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
2992 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
2993 /^-dshow-rn-stats/ && do { push(@HsC_flags, $_); next arg; };
2994 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
2995 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
2996 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
2997 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
2999 #*************** ... and now all these -R* ones for its runtime system...
3001 /^-Rscale-sizes?(.*)/ && do {
3002 $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1);
3005 /^(-H|-Rmax-heapsize)(.*)/ && do {
3006 local($heap_size) = &grab_arg_arg(*Args,$1, $2);
3007 if ($heap_size =~ /(\d+)[Kk]$/) {
3008 $heap_size = $1 * 1000;
3009 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
3010 $heap_size = $1 * 1000 * 1000;
3011 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
3012 $heap_size = $1 * 1000 * 1000 * 1000;
3014 if ($heap_size <= 0) {
3015 print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n";
3016 $Specific_heap_size = 0;
3018 # if several heap sizes given, take the largest...
3019 } elsif ($heap_size >= $Specific_heap_size) {
3020 $Specific_heap_size = $heap_size;
3022 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n";
3026 /^(-K|Rmax-(stk|stack)size)(.*)/ && do {
3028 local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3);
3029 if ($stk_size =~ /(\d+)[Kk]$/) {
3030 $stk_size = $1 * 1000;
3031 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
3032 $stk_size = $1 * 1000 * 1000;
3033 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
3034 $stk_size = $1 * 1000 * 1000 * 1000;
3036 if ($stk_size <= 0) {
3037 print STDERR "$Pgm: resetting stack-size to zero!!! $stk_size\n";
3038 $Specific_stk_size = 0;
3040 # if several stack sizes given, take the largest...
3041 } elsif ($stk_size >= $Specific_stk_size) {
3042 $Specific_stk_size = $stk_size;
3044 print STDERR "$Pgm: ignoring stack-size-setting option ($flag $stk_size)...not the largest seen\n";
3048 /^-Rgc-stats$/ && do { $CollectingGCstats++;
3049 # the two RTSs do this diff ways; we will try to compensate
3052 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
3054 #---------- C high-level assembler (gcc) -------------------------------
3055 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
3057 # -dgcc-lint is a useful way of making GCC very fussy.
3058 # From alan@spri.levels.unisa.edu.au (Alan Modra).
3059 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
3060 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
3061 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
3063 # inject "#include <wurble>" into the compiler's C output!
3065 /^-#include(.*)/ && do {
3066 local($to_include) = &grab_arg_arg(*Args,'-#include', $1);
3067 push(@CcInjects, "#include $to_include\n");
3070 #---------- Linker (gcc, really) ---------------------------------------
3072 /^-static$/ && do { push(@Ld_flags, $_); next arg; };
3074 #---------- mixed cc and linker magic ----------------------------------
3075 # this optimisation stuff is finally sorted out later on...
3077 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
3079 /^-O[1-2]?$/ && do {
3080 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
3081 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
3083 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
3086 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
3088 /^-Ofile(.*)/ && do {
3090 local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1);
3091 @HsC_minusO3_flags = ();
3093 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
3096 s/\#.*//; # death to comments
3097 s/[ \t]+//g; # death to whitespace
3098 next if /^$/; # ditto, blank lines
3099 s/([()*{}])/\\$1/g; # protect shell metacharacters
3101 push(@CcBoth_flags, $1);
3103 push(@HsC_minusO3_flags, $_);
3109 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
3110 # in the consistency info
3114 #---------- linking .a file --------------------------------------------
3116 /^-Main(.*)/ && do {
3117 # specifies main or mainPrimIO to be linked
3121 #---------- catch unrecognized flags -----------------------------------
3124 print STDERR "$Pgm: unrecognised option: $_\n";
3130 } # end of processArgs