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}";
142 $Status = 0; # just used for exit() status
145 # set up signal handler
146 sub quit_upon_signal { &tidy_up_and_die(1, ''); }
147 $SIG{'INT'} = 'quit_upon_signal';
148 $SIG{'QUIT'} = 'quit_upon_signal';
150 # where to get "require"d .prl files at runtime (poor man's dynamic loading)
151 # (use LIB, not DATA, because we can't be sure of arch-independence)
152 @INC = ( ( $INSTALLING ) ? $InstLibDirGhc
153 : "$TopPwd/${CURRENT_DIR}" );
155 if ( $ENV{'TMPDIR'} ) { # where to make tmp file names
156 $Tmp_prefix = ($ENV{'TMPDIR'} . "/ghc$$");
158 print STDERR "TMPDIR has not been set to anything useful!\n" if (${TMPDIR} eq '');
159 $Tmp_prefix ="${TMPDIR}/ghc$$"; # TMPDIR set via Makefile when booting..
160 $ENV{'TMPDIR'} = ${TMPDIR}; # set the env var as well
163 # Some shells run into real trouble when command line and environment
164 # gets big (e.g., cmd lines of >4K to /bin/sh causes havoc on our
165 # Solaris-2.5.1 boxes - even though sysconf(_SC_ARG_MAX) reports 1M ...).
166 # To work around any such */bin/sh* problems, we will scribble such
167 # awfully long command lines into a temp file and exec that temp file
168 # with $(REAL_SHELL) (don't use the SHELL variable directly as this
169 # will normally get you the wrong thing when the driver is invoked
170 # from within `make'). If the REAL_SHELL variable isn't set, you'll
171 # get SHELL. This is all a terrible hack. (in case you hadn't reached
172 # the same conclusion by now :-)
176 if ( ! $ENV{'REAL_SHELL'} ) {
177 $ENV{'REAL_SHELL'} = $ENV{'SHELL'};
180 @Files_to_tidy = (); # files we nuke in the case of abnormal termination
182 $Unlit = ( $INSTALLING ) ? "$InstLibExecDirGhc/unlit"
183 : "$TopPwd/${CURRENT_DIR}/${GHC_UNLIT}";
187 $Diff = $CONTEXT_DIFF;
192 $HsCpp = # but this is re-set to "cat" (after options) if -cpp not seen
193 ( $INSTALLING ) ? "$InstLibExecDirGhc/hscpp"
194 : "$TopPwd/${CURRENT_DIR}/${GHC_HSCPP}";
197 $genSPECS_flag = ''; # See ../utils/hscpp/hscpp.prl
198 $HsC = ( $INSTALLING ) ? "$InstLibExecDirGhc/hsc"
199 : "$TopPwd/${CURRENT_DIR}/${GHC_HSC}";
201 # For PVM fiends only
202 $SysMan = ( $INSTALLING ) ? "$InstLibExecDirGhc/SysMan"
203 : "$TopPwd/${CURRENT_DIR}/${GHC_SYSMAN}";
208 # HsC_rts_flags: if we want to talk to the LML runtime system
209 # NB: we don't use powers-of-2 sizes, because this may do
210 # terrible things to cache behavior.
212 $Specific_heap_size = 6 * 1000 * 1000;
213 $Specific_stk_size = 1000 * 1000;
214 $Scale_sizes_by = 1.0;
218 The variables set by @setupOptFlags@ represent parts of the
219 -O/-O2/etc ``templates,'' which are filled in later, using these.
220 These are the default values, which may be changed by user flags.
224 $Oopt_UnfoldingUseThreshold = '-fsimpl-uf-use-threshold3';
225 $Oopt_MaxSimplifierIterations = '-fmax-simplifier-iterations4';
226 $Oopt_PedanticBottoms = '-fpedantic-bottoms'; # ON by default
227 $Oopt_MonadEtaExpansion = '';
228 $Oopt_FinalStgProfilingMassage = '';
230 $Oopt_SpecialiseUnboxed = '';
231 $Oopt_DoSpecialise = ''; # ToDo:LATER: '-fspecialise';
232 $Oopt_FoldrBuild = 0; # *Off* by default!
233 $Oopt_FB_Support = ''; # was '-fdo-arity-expand';
234 # $Oopt_FoldrBuildWW = 0; # Off by default
235 $Oopt_FoldrBuildInline = ''; # was '-fdo-inline-foldr-build';
236 $Oopt_ShowSimplifierProgress = '';
237 } # end of setupOptFlags
239 # Assign defaults to these right away.
243 Things to do with C compilers/etc:
245 $CcRegd = $GHC_OPT_HILEV_ASM;
246 @CcBoth_flags = ('-S'); # flags for *any* C compilation
250 # those for all files,
251 # those only for .c files;
252 # those only for .hc files
254 @CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__');
255 @CcRegd_flags_c = ();
256 @CcRegd_flags_hc = ();
258 $As = ''; # "assembler" is normally GCC
261 $Lnkr = ''; # "linker" is normally GCC
264 # 'nm' is used for consistency checking (ToDo: mk-world-ify)
265 # ToDo: check the OS or something ("alpha" is surely not the crucial question)
266 $Nm = ($TargetPlatform =~ /^alpha-/) ? 'nm -B' : 'nm';
269 Warning packages that are controlled by -W and -Wall. The 'standard'
270 warnings that you get all the time are
272 -fwarn-overlapping-patterns
273 -fwarn-missing-methods
274 -fwarn-duplicate-exports
276 these are turned off by -Wnot.
279 @StandardWarnings = ('-fwarn-overlapping-patterns',
280 '-fwarn-missing-methods',
281 '-fwarn-duplicate-exports');
282 @MinusWOpts = (@StandardWarnings,
283 '-fwarn-incomplete-patterns',
284 '-fwarn-unused-binds',
285 '-fwarn-unused-imports');
286 @MinusWallOpts = (@MinusWOpts,
287 '-fwarn-unused-matches',
288 '-fwarn-name-shadowing');
291 What options \tr{-user-setup-a} turn into (user-defined ``packages''
293 of options). Note that a particular user-setup implies a particular
294 Prelude ({\em including} its interface file(s)).
296 $BuildTag = ''; # default is sequential build w/ Appel-style GC
298 %BuildDescr = (# system ways begin
299 '', 'normal sequential',
303 '_mc', "$WAY_mc_NAME",
304 '_mr', "$WAY_mr_NAME",
305 '_mt', "$WAY_mt_NAME",
306 '_mp', "$WAY_mp_NAME",
307 '_mg', "$WAY_mg_NAME",
308 '_2s', "$WAY_2s_NAME",
309 '_1s', "$WAY_1s_NAME",
310 '_du', "$WAY_du_NAME",
328 '_B', "$WAY_B_NAME" );
330 # these are options that are "fed back" through the option processing loop
334 '_a', "$WAY_a_HC_OPTS",
335 '_b', "$WAY_b_HC_OPTS",
336 '_c', "$WAY_c_HC_OPTS",
337 '_d', "$WAY_d_HC_OPTS",
338 '_e', "$WAY_e_HC_OPTS",
339 '_f', "$WAY_f_HC_OPTS",
340 '_g', "$WAY_g_HC_OPTS",
341 '_h', "$WAY_h_HC_OPTS",
342 '_i', "$WAY_i_HC_OPTS",
343 '_j', "$WAY_j_HC_OPTS",
344 '_k', "$WAY_k_HC_OPTS",
345 '_l', "$WAY_l_HC_OPTS",
346 '_m', "$WAY_m_HC_OPTS",
347 '_n', "$WAY_n_HC_OPTS",
348 '_o', "$WAY_o_HC_OPTS",
349 '_A', "$WAY_A_HC_OPTS",
350 '_B', "$WAY_B_HC_OPTS",
353 '_p', "$WAY_p_HC_OPTS",
354 '_t', "$WAY_t_HC_OPTS",
355 '_u', "$WAY_u_HC_OPTS",
356 '_mc', "$WAY_mc_HC_OPTS",
357 '_mr', "$WAY_mr_HC_OPTS",
358 '_mt', "$WAY_mt_HC_OPTS",
359 '_mp', "$WAY_mp_HC_OPTS",
360 '_mg', "$WAY_mg_HC_OPTS",
361 '_2s', "$WAY_2s_HC_OPTS",
362 '_1s', "$WAY_1s_HC_OPTS",
363 '_du', "$WAY_B_HC_OPTS" );
367 Import/include directories (\tr{-I} options) are sufficiently weird to
368 require special handling.
371 @Import_dir = ('.'); #-i things
372 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
374 # where to look for interface files (system hi's, i.e., prelude and syslibs)
375 @SysImport_dir = ( $INSTALLING )
376 ? ( "$InstLibDirGhc/imports/std" )
377 : ( "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std" );
379 # We need to look in ghc/ and glaExts/ when searching for implicitly needed .hi files, but
380 # we should really *not* look there for explicitly imported modules.
382 $GhcVersionInfo = int($PROJECTVERSION * 100 + .5); # i.e., round (X.Y * 100)
383 $Haskell1Version = 4; # i.e., Haskell 1.4
386 @UserLibrary_dir= (); #-L things;...
387 @UserLibrary = (); #-l things asked for by the user
389 @SysLibrary_dir = ( ( $INSTALLING ) #-syslib things supplied by the system
391 : ( "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR"
392 , "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/gmp"
393 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std"
394 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std/cbits"
397 @SysLibrary = (); # will be built up as we go along
399 $TopClosureFile # defaults to 1.2 one; will be mangled later
400 = ( $INSTALLING) ? "$InstLibDirGhc/TopClosureXXXX.o"
401 : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/main/TopClosureXXXX.o";
403 # make depend for Haskell
405 = ( $INSTALLING ) ? "$InstBinDirGhc/mkdependHS"
406 : "$TopPwd/$CURRENT_DIR/$GHC_UTILS_DIR/mkdependHS/mkdependHS";
408 @MkDependHS_flags = ();
410 # do_link flag should not be reset while rescanning the cmd-line.
412 $Specific_output_dir = ''; # set by -odir <dir>
413 $Specific_output_file = ''; # set by -o <file>; "-" for stdout
416 Function to initialise the per-compilation-unit globals that
417 are used to guide and control the invocation of the different phases.
420 sub initDriverGlobals {
422 # reset the following options:
423 # RTS flags to use while compiling
425 @HsP_flags = (); # these are the flags destined solely for
426 # the flex/yacc parser
431 The optimisations/etc to be done by the compiler are {\em normally}
432 expressed with a \tr{-O} (or \tr{-O2}) flag, or by its absence.
435 $OptLevel = 0; # no -O == 0; -O == 1; -O2 == 2; -Ofile == 3
436 $MinusO2ForC = 0; # set to 1 if -O2 should be given to C compiler
437 $StolenX86Regs = 4; # **HACK*** of the very worst sort
441 @CcBoth_flags = ('-S'); # flags for *any* C compilation
444 # GCC flags: those for all files, those only for .c files; those only for .hc files
445 @CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__');
446 @CcRegd_flags_c = ();
447 @CcRegd_flags_hc = ();
449 @Import_dir = ('.'); #-i things
450 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
455 We are given a list of files with various presumably-known suffixes
456 (unknown-suffix files go straight to the linker). For each file, we
457 begin by assuming that we'll run every phase over it. However: (1)
458 global flags (\tr{-c}, \tr{-S}, etc.) tell us not to run any phase
459 past a certain point; and (2) the file's suffix tells us what phase to
460 start with. Linking is weird and kept track of separately.
462 Here are the initial defaults applied to all files:
464 $Cpp_flag_set = 0; # (hack)
465 $Only_preprocess_C = 0; # pretty hackish
466 $Only_preprocess_hc = 0; # ditto
467 $Only_generate_deps = 0; # "
468 $PostprocessCcOutput = 0;
470 # native code-gen or via C?
471 $HaveNativeCodeGen = $GhcWithNativeCodeGen;
472 $HscOut = '-C='; # '-C=' ==> .hc output; '-S=' ==> .s output; '-N=' ==> neither
474 if $HaveNativeCodeGen && $TargetPlatform =~ /^(alpha|sparc)-/;
475 # TEMP: disable x86 if $HaveNativeCodeGen && $TargetPlatform =~ /^(i386|alpha|sparc)-/;
476 $ProduceHi = '-hifile=';
481 $CollectingGCstats = 0;
482 $CollectGhcTimings = 0;
483 $DEBUGging = ''; # -DDEBUG and all that it entails (um... not really)
484 $PROFing = ''; # set to p or e if profiling
485 $PROFgroup = ''; # set to group if an explicit -Ggroup specified
486 $PROFauto = ''; # set to relevant hsc flag if -auto or -auto-all
487 $PROFcaf = ''; # set to relevant hsc flag if -caf-all
488 $PROFignore_scc = ''; # set to relevant parser flag if explicit sccs ignored
489 $UNPROFscc_auto = ''; # set to relevant hsc flag if forcing auto sccs without profiling
490 $TICKYing = ''; # set to t if compiling for ticky-ticky profiling
491 $PARing = ''; # set to p if compiling for PAR
492 $CONCURing = ''; # set to c if compiling for CONCURRENT
493 $GRANing = ''; # set to g if compiling for GRAN
494 $StkChkByPageFaultOK = 1; # may be set to 0 (false) for some builds
495 $Specific_hi_file = ''; # set by -ohi <file>; "-" for stdout
496 $Specific_dump_file = ''; # set by -odump <file>; "-" for stdout
497 $Using_dump_file = 0;
499 $Osuffix = ''; # default: use the normal suffix for that kind of output
501 $HiSuffix_prelude = '';
502 $Do_recomp_chkr = 0; # don't use the recompilatio checker unless asked
503 $Do_cc = -1; # a MAGIC indeterminate value; will be set to 1 or 0.
506 $Keep_hc_file_too = 0;
507 $Keep_s_file_too = 0;
508 $UseGhcInternals = 0; # if 1, may use GHC* modules
511 $Dump_parser_output = 0;
513 $Dump_asm_splitting_info = 0;
514 $NoImplicitPrelude = 0;
517 } # end of initDriverGlobals (Sigh)
519 # we split the argv passed to the driver into three:
524 # and files to be linked...
530 # cmd line options prefixing the unit we're compiling
535 We inject consistency-checking information into \tr{.hc} files (both
536 when created by the Haskell compiler and when compiled by the C
537 compiler), so that we can check that an executable is made from
538 consistently-built pieces. (The check is normally done just after
539 linking.) The checking is done by introducing/munging
540 \tr{what(1)}-style strings. Anyway, here are the relevant global
541 variables and their defaults:
543 $LinkChk = 1; # set to 0 if the link check should *not* be done
545 # major & minor version numbers; major numbers must always agree;
546 # minor disagreements yield a warning.
547 $HsC_major_version = 33;
548 $HsC_minor_version = 0;
549 $Cc_major_version = 36;
550 $Cc_minor_version = 1;
552 # options: these must always agree
553 $HsC_consist_options = ''; # we record, in this order:
554 # Build tag; debugging?
555 $Cc_consist_options = ''; # we record, in this order:
556 # Build tag; debugging?
559 %************************************************************************
561 \section[Driver-parse-argv]{Munge the command-line options}
563 %************************************************************************
565 Now slurp through the arguments.
568 &initDriverGlobals();
569 &splitCmdLine(@ARGV);
570 # Run through the cmd-line first time.
571 &processArgs(@Cmd_opts);
573 # Check to see if driver is only in the business
574 # to generate dependencies
575 if ( $Status == 0 && $Only_generate_deps ) {
577 push (@MkDependHS_flags, "-o$Osuffix") if $Osuffix;
578 push (@MkDependHS_flags, "-s$BuildTag") if $BuildTag;
579 push (@MkDependHS_flags, "-D__HASKELL1__=$Haskell1Version");
580 # They're not (currently) needed, but we need to quote any -#include options
581 foreach (@Cmd_opts) {
582 s/-#include.*$/'$&'/g;
584 local($to_do) = "$MkDependHS @MkDependHS_flags -- @Cmd_opts -- @Input_file" ;
585 &run_something($to_do, 'Haskell dependencies');
589 # if there are several input files,
590 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
591 # (except if linking, of course)
593 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
594 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
595 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
596 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
597 print STDERR "\tPerhaps the -odir option will do what you want.\n";
602 # check for various pathological -o and -odir combinations...
603 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
604 if ($Specific_output_file eq '-') {
605 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
607 } else { # amalgamate...
608 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
609 # ToDo: check we haven't got a junk name now...
610 $Specific_output_dir = ''; # reset
614 # crash and burn if there were errors
616 print STDERR $ShortUsage;
621 %************************************************************************
623 \section[Driver-post-argv-mangling]{Setup after reading options}
625 %************************************************************************
627 %************************************************************************
629 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
631 %************************************************************************
633 We come now to the default ``wads of options'' that are turned on by
634 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
635 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
638 The user can also specify his/her own list of options in a file; in
639 that case, the work is already done (see stuff about @minusO3@,
642 GHC allows very precise control of what happens during a compilation.
643 Core-to-Core and STG-to-STG passes can be run in any order, as many
644 times as you like. Individual transformations can be turned on or
647 Sadly, however, there are some interdependencies \& Things You Must
648 Not Do. Here is the list.
652 \item[\tr{-fspecialise}:]
653 The specialiser must have dependency-analysed input; but if you run
654 the simplifier to do this, you must not let it toss away unused
655 bindings! (The typechecker conveys some specialisation info via
656 ``unused'' bindings...)
658 \item[\tr{-ffloat-inwards}:]
659 Floating inwards should be done before strictness analysis, because
660 the latter will give better results.
662 \item[\tr{-fstatic-args}:]
663 The static-arguments-transformation pass {\em must} have the
664 simplifier run right after it.
666 \item[\tr{-fcalc-inlinings[12]}:]
667 Not required, but there may be slight gains by re-simplifying after
668 this is done. (You could then \tr{-fcalc-inlinings} again, just for
671 \item[\tr{-ffull-laziness}:]
672 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
673 that's run. (Um, well, howzabout the simplifier just once more...)
678 \item[\tr{-fupdate-analysis}:]
679 It really really wants to be the last STG-to-STG pass that is run.
684 sub setupOptimiseFlags {
690 '-ffloat-lets-exposing-whnf',
691 '-ffloat-primops-ok',
694 # '-fdo-lambda-eta-expansion', # too complicated
696 # '-flet-to-case', # no strictness analysis, so...
697 $Oopt_PedanticBottoms,
698 # $Oopt_MonadEtaExpansion, # no thanks
700 # These two work fine, if you really want no simplification at all,
701 # for bizarre test reasons. But you get really terrible code if you use them,
702 # for example: let x = e in x
703 # with dozens of redundant thunks etc. So I'm leaving them out.
705 # '-fsimpl-uf-use-threshold0',
706 # '-fessential-unfoldings-only',
708 $Oopt_UnfoldingUseThreshold,
709 $Oopt_MaxSimplifierIterations,
710 $Oopt_ShowSimplifierProgress,
713 # '-ffull-laziness', # removed 95/04 WDP following Andr\'e's lead
715 $Oopt_FinalStgProfilingMassage
718 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
720 '-fdo-eta-reduction',
722 # initial simplify: mk specialiser happy: minimum effort please
726 '-fkeep-spec-pragma-ids', # required before specialisation
728 # I don't understand why we want -fessential-unfoldings-only here
729 # If we have it, the following nasty thing happens:
733 # where "*" means exported.
734 # In the essential-unfoldings pass we still substitute f for g
735 # but we don't substitute E for f first. So we get
739 # The g=f will get reverse-substituted later, but it's untidy.
741 # '-fessential-unfoldings-only',
742 # '-fsimpl-uf-use-threshold0',
744 '-fmax-simplifier-iterations1',
745 $Oopt_PedanticBottoms,
748 ($Oopt_DoSpecialise) ? (
749 '-fspecialise-overloaded',
750 $Oopt_SpecialiseUnboxed,
754 '-fsimplify', # need dependency anal after specialiser ...
755 '[', # need tossing before calc-inlinings ...
757 '-ffloat-lets-exposing-whnf',
758 '-ffloat-primops-ok',
762 # '-fdo-eta-reduction',
763 '-fdo-lambda-eta-expansion',
765 $Oopt_PedanticBottoms,
766 $Oopt_MonadEtaExpansion,
767 $Oopt_UnfoldingUseThreshold,
768 $Oopt_MaxSimplifierIterations,
769 $Oopt_ShowSimplifierProgress,
772 #LATER: '-fcalc-inlinings1', -- pointless for 2.01
774 # ($Oopt_FoldrBuildWW) ? (
775 # '-ffoldr-build-ww-anal',
776 # '-ffoldr-build-worker-wrapper',
780 # '-ffloat-lets-exposing-whnf',
781 # '-ffloat-primops-ok',
785 # '-fdo-eta-reduction',
786 # '-fdo-lambda-eta-expansion',
788 # $Oopt_PedanticBottoms,
789 # $Oopt_MonadEtaExpansion,
790 # $Oopt_UnfoldingUseThreshold,
791 # $Oopt_MaxSimplifierIterations,
792 # $Oopt_ShowSimplifierProgress,
796 # this pass-ordering sequence was agreed by Simon and Andr\'e
797 # (WDP 94/07, 94/11).
800 ($Oopt_FoldrBuild) ? (
801 '-ffoldr-build-on', # desugar list comprehensions for foldr/build
805 '-fignore-inline-pragma', # **** NB!
806 '-fdo-foldr-build', # NB
808 '-ffloat-lets-exposing-whnf',
809 '-ffloat-primops-ok',
813 # '-fdo-eta-reduction',
814 '-fdo-lambda-eta-expansion', # After full laziness
816 $Oopt_PedanticBottoms,
817 $Oopt_MonadEtaExpansion,
818 $Oopt_UnfoldingUseThreshold,
819 $Oopt_MaxSimplifierIterations,
820 $Oopt_ShowSimplifierProgress,
829 '-ffloat-lets-exposing-whnf',
830 '-ffloat-primops-ok',
834 '-fdo-eta-reduction',
835 '-fdo-lambda-eta-expansion',
837 ($Oopt_FoldrBuildInline),
838 # you need to inline foldr and build
839 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
840 # but do reductions if you see them!
841 $Oopt_PedanticBottoms,
842 $Oopt_MonadEtaExpansion,
843 $Oopt_UnfoldingUseThreshold,
844 $Oopt_MaxSimplifierIterations,
845 $Oopt_ShowSimplifierProgress,
853 '-ffloat-lets-exposing-whnf',
854 '-ffloat-primops-ok',
858 # '-fdo-eta-reduction',
859 '-fdo-lambda-eta-expansion',
861 '-flet-to-case', # Aha! Only done after strictness analysis
862 $Oopt_PedanticBottoms,
863 $Oopt_MonadEtaExpansion,
864 $Oopt_UnfoldingUseThreshold,
865 $Oopt_MaxSimplifierIterations,
866 $Oopt_ShowSimplifierProgress,
871 # Case-liberation for -O2. This should be after
872 # strictness analysis and the simplification which follows it.
876 # : "-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 ]" ),
878 # Final clean-up simplification:
883 '-ffloat-lets-exposing-whnf',
884 '-ffloat-primops-ok',
888 # '-fdo-eta-reduction',
889 '-fdo-lambda-eta-expansion',
892 '-fignore-inline-pragma', # **** NB!
893 $Oopt_FoldrBuildInline,
894 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
895 # but still do reductions if you see them!
896 $Oopt_PedanticBottoms,
897 $Oopt_MonadEtaExpansion,
898 $Oopt_UnfoldingUseThreshold,
899 $Oopt_MaxSimplifierIterations,
900 $Oopt_ShowSimplifierProgress,
905 #LATER: '-fcalc-inlinings2', -- pointless for 2.01
910 $Oopt_FinalStgProfilingMassage,
916 # SPECIAL FLAGS for -O2
924 Sort out what we're going to do about optimising. First, the @hsc@
925 flags and regular @cc@ flags to worry about:
927 if ( $OptLevel <= 0 ) {
929 # for this level, we tell the parser -fignore-interface-pragmas
930 push(@HsC_flags, '-fignore-interface-pragmas');
931 # and tell the compiler not to produce them
932 push(@HsC_flags, '-fomit-interface-pragmas');
934 &add_Hsc_flags( @HsC_minusNoO_flags );
935 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
937 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
939 &add_Hsc_flags( @HsC_minusO_flags );
940 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
941 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
942 # but it *is* useful in compiling the garbage collectors (so said
943 # Patrick many moons ago...).
945 } else { # -Ofile, then...
947 &add_Hsc_flags( @HsC_minusO3_flags );
948 push(@HsC_flags, $Oopt_FinalStgProfilingMassage) if $Oopt_FinalStgProfilingMassage;
950 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
953 } # setupOptimiseFlags
957 %************************************************************************
959 \subsection{Check for consistency, etc.}
961 %************************************************************************
963 Sort out @$BuildTag@, @$PROFing@, @$CONCURing@, @$PARing@,
964 @$GRANing@, @$TICKYing@:
966 sub setupBuildFlags {
969 # PROFILING stuff after argv mangling:
971 # warn about any scc exprs found (in case scc used as identifier)
972 push(@HsP_flags, '-W');
974 # add -auto sccs even if not profiling !
975 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
978 push(@HsC_flags, $PROFauto) if $PROFauto;
979 push(@HsC_flags, $PROFcaf) if $PROFcaf;
980 #push(@HsC_flags, $PROFdict) if $PROFdict;
982 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
984 # Ignore user sccs when auto annotating, but warn when doing so.
985 $PROFignore_scc = '-W' if $PROFauto;
987 push(@HsP_flags, (($PROFignore_scc) ? $PROFignore_scc : '-S'));
989 if ( $SplitObjFiles ) {
990 # can't split with cost centres -- would need global and externs
991 print STDERR "$Pgm: WARNING: splitting objects when profiling will *BREAK* if any _scc_s are present!\n";
992 # (but it's fine if there aren't any _scc_s around...)
993 # $SplitObjFiles = 0; # unset
994 #not an error: for now: $Status++;
997 #if ( $BuildTag ne '' ) {
998 # local($b) = $BuildDescr{$BuildTag};
999 # if ($CONCURing eq 'c') { print STDERR "$Pgm: Can't mix $b with -concurrent.\n"; exit 1; }
1000 # if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
1001 # if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
1002 # if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
1004 # # ok to have a user-way profiling build
1005 # # eval the profiling opts ... but leave user-way BuildTag
1006 # if ($PROFing eq 'p') { &processArgs(split(' ', $SetupOpts{'_p'})); } # eval($EvaldSetupOpts{'_p'}); }
1008 if ( $PROFing eq 'p' ) {
1009 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
1010 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
1011 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
1012 $BuildTag = ($CONCURing eq 'c') ? '_mr' : '_p' ; # possibly "profiled concurrent"...
1014 } elsif ( $CONCURing eq 'c' ) {
1015 if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix -concurrent with -parallel.\n"; exit 1; }
1016 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -concurrent with -gransim.\n"; exit 1; }
1017 $BuildTag = ($TICKYing eq 't') ? '_mt' : '_mc' ; # possibly "ticky concurrent"...
1018 # "profiled concurrent" already acct'd for...
1020 } elsif ( $PARing eq 'p' ) {
1021 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
1022 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
1025 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
1026 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
1030 } elsif ( $GRANing eq 'g' ) {
1031 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
1034 } elsif ( $TICKYing eq 't' ) {
1040 After the sanity checks, add flags to the necessary parts of the driver pipeline:
1043 if ( $BuildTag ne '' ) { # something other than normal sequential...
1045 local($Tag) = "${BuildTag}";
1046 $Tag =~ s/_//; # move the underscore to the back
1048 $HscOut = '-C='; # must go via C
1049 &processArgs(split(' ', $SetupOpts{$BuildTag}));
1050 # eval($EvaldSetupOpts{$BuildTag});
1054 Decide what the consistency-checking options are in force for this run:
1057 $HsC_consist_options = "${BuildTag},${DEBUGging}";
1058 $Cc_consist_options = "${BuildTag},${DEBUGging}";
1061 # Funny place to put it, but why not.
1063 if ( $HiSuffix_prelude eq '' ) {
1064 local($Tag) = "${BuildTag}";
1066 $Tag = "${Tag}_" if $Tag ne '';
1067 $HiSuffix_prelude="${Tag}hi";
1069 #push(@HsC_flags, "-hisuf-prelude=.${HiSuffix_prelude}"); # use appropriate Prelude .hi files
1070 #push(@HsC_flags, "-hisuf=.${HiSuffix}");
1075 %************************************************************************
1077 \subsection{Add on machine-specific C-compiler flags}
1079 %************************************************************************
1081 Shove on magical machine-specific options. We use \tr{unshift} to
1082 stick them on the {\em front} of the arrays, so that ``later''
1083 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
1085 Note: a few ``always apply'' flags were set at the very beginning.
1090 if ($TargetPlatform =~ /^alpha-/) {
1091 # we know how to *mangle* asm for alpha
1092 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1093 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1094 unshift(@CcBoth_flags, ('-static'));
1096 } elsif ($TargetPlatform =~ /^hppa/) {
1097 # we know how to *mangle* asm for hppa
1098 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1099 unshift(@CcBoth_flags, ('-static'));
1101 # We don't put in '-mlong-calls', because it's only
1102 # needed for very big modules (sigh), and we don't want
1103 # to hobble ourselves further on all the other modules
1106 # [Dated comment (gcc-2.6.x?), -mlong-calls is no longer
1107 # a supported gcc HPPA flag]
1108 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
1109 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
1110 # (very nice, but too bad the HP /usr/include files don't agree.)
1112 } elsif ($TargetPlatform =~ /^i386-/) {
1113 # we know how to *mangle* asm for X86
1114 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1115 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK && $TargetPlatform !~ /nextstep/;
1116 # I do not know how to do STACK_CHECK_BY_PAGE_FAULT
1117 # on NeXTs (my fault, not theirs), so I don't.
1120 # -fno-defer-pop : basically the same game as for m68k
1122 # -fomit-frame-pointer : *must* ; because we're stealing
1123 # the fp (%ebp) for our register maps. *All* register
1124 # maps (in MachRegs.lh) must steal it.
1126 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1127 unshift(@CcRegd_flags, '-fomit-frame-pointer');
1128 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1130 } elsif ($TargetPlatform =~ /^m68k-/) {
1131 # we know how to *mangle* asm for m68k
1132 unshift (@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1133 unshift (@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK && $TargetPlatform !~ /nextstep/;
1134 # I do not know how to do STACK_CHECK_BY_PAGE_FAULT
1135 # on NeXTs (my fault, not theirs), so I don't.
1138 # -fno-defer-pop : for the .hc files, we want all the pushing/
1139 # popping of args to routines to be explicit; if we let things
1140 # be deferred 'til after an STGJUMP, imminent death is certain!
1142 # -fomit-frame-pointer : *don't*
1143 # It's better to have a6 completely tied up being a frame pointer
1144 # rather than let GCC pick random things to do with it.
1145 # (If we want to steal a6, then we would try to do things
1146 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1148 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1149 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1150 # maybe gives reg alloc a better time
1151 # also: -fno-defer-pop is not sufficiently well-behaved without it
1153 } elsif ($TargetPlatform =~ /^mips-/) {
1154 # we (hope to) know how to *mangle* asm for MIPSen
1155 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1156 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1157 unshift(@CcBoth_flags, ('-static'));
1159 } elsif ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1160 # we know how to *mangle* asm for PowerPC
1161 # :-( unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1162 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1163 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1164 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1165 } elsif ($TargetPlatform =~ /^sparc-/) {
1166 # we know how to *mangle* asm for SPARC
1167 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1168 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1171 } # end of setupMachOpts
1174 %************************************************************************
1176 \subsection{Set up for warnings}
1178 %************************************************************************
1180 Several warnings are turned on by default. These are supposed to be
1181 the 'I'm pretty sure you've made a mistake here' kind of warnings.
1182 The rest are turned on by the -W and -Wall options, or individually
1183 via their -fwarn and -fno-warn flags.
1186 sub setupWarningFlags {
1187 &add_Hsc_flags( @StandardWarnings );
1191 Same unshifting magic, but for special linker flags.
1193 The configure script determines whether the object file symbol tables
1194 have a leading underscore, and sets @LeadingUnderscore@ accordingly.
1195 (The driver script `sees' the setting of the @LeadingUnderscore@
1196 by having the Makefile prepend it).
1200 local($uscore) = ( ${LeadingUnderscore} eq 'YES' ) ? '_' : '';
1203 (($Ld_main) ? ( '-u', "${uscore}Main_" . $Ld_main . '_closure' ) : ()));
1205 ( '-u', "${uscore}PrelBase_Z91Z93_closure" # i.e., []
1206 ,'-u', "${uscore}PrelBase_IZh_static_info"
1207 ,'-u', "${uscore}PrelBase_CZh_static_info"
1208 ,'-u', "${uscore}PrelBase_False_inregs_info"
1209 ,'-u', "${uscore}PrelBase_True_inregs_info"
1210 ,'-u', "${uscore}DEBUG_REGS"
1212 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1213 # sometimes we have lots of toc entries...
1214 # unshift(@Ld_flags, ('-Xlinker -bbigtoc -Xlinker -bnoquiet'));
1215 unshift(@Ld_flags, ('-Xlinker -bbigtoc'));
1218 } # end of setupLinkOpts
1222 %************************************************************************
1224 \subsection{Set up include paths and system-library enslurpment}
1226 %************************************************************************
1228 Now that we know what garbage-collector, etc., are required, we can
1229 finalise our list of libraries to slurp through, and generally Get
1234 # default includes must be added AFTER option processing
1235 if ( ! $INSTALLING ) {
1236 push (@Include_dir, "$TopPwd/${CURRENT_DIR}/${GHC_INCLUDE_DIR}");
1238 push (@Include_dir, "$InstLibDirGhc/includes");
1239 push (@Include_dir, "$InstLibDirGhc/includes");
1241 } # end of setupIncPaths
1246 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1249 foreach $f (@SysLibrary) {
1250 next if $f =~ /_cbits/;
1251 $f .= $BuildTag if $f =~ /^-lHS/;
1254 # fiddle the TopClosure file name...
1255 $TopClosureFile =~ s/XXXX//;
1257 # Push library HSrts, plus boring clib bit
1258 push(@SysLibrary, "-lHSrts${BuildTag}");
1259 push(@SysLibrary, '-lHSclib');
1261 # RTS compiled with cygwin32, uses the WinMM API
1262 # to implement the itimers, since cygwin.dll does not
1263 # support it. Only reqd. for `ways' that use itimers.
1265 push(@SysLibrary, '-lwinmm') if $BuildTag ne '' && $TargetPlatform eq 'i386-unknown-cygwin32';
1267 # Push the pvm libraries
1268 if ($BuildTag eq '_mp') {
1269 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1270 push(@SysLibrary, "-L$pvmlib", '-lpvm3', '-lgpvm3');
1271 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1272 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1273 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1274 push(@SysLibrary, '-lsocket', '-lnsl');
1278 # Push the GNU multi-precision arith lib; and the math library
1279 push(@SysLibrary, '-lgmp');
1280 push(@SysLibrary, '-lm');
1283 %************************************************************************
1285 \subsection{Check that this system was built to do what we are asking}
1287 %************************************************************************
1289 Before continuing we check that the appropriate build is available.
1292 #die "$Pgm: no BuildAvail?? $BuildTag\n" if $BuildDescr{$BuildTag} eq '' ; # sanity
1294 if ( $BuildDescr{$BuildTag} eq '' ) {
1295 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1296 "' \"build\" is not available with your GHC setup.\n";
1297 print STDERR "(It was not configured for it at your site.)\n";
1298 print STDERR $ShortUsage;
1302 } # end of setupSyslibs
1306 %************************************************************************
1308 \subsection{Final miscellaneous setup bits before we start going}
1310 %************************************************************************
1312 Record largest specific heapsize, if any.
1314 sub setupHeapStackSize {
1315 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1316 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1317 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1318 push(@HsC_rts_flags, "-K$Specific_stk_size");
1322 If no input or link files seen, then we let 'em feed in stdin; this is
1323 mainly for debugging.
1327 if ($#Input_file < 0 && $#Link_file < 0) {
1328 @Input_file = ( '-' );
1330 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1331 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n" if -t;
1332 while (<STDIN>) { print INF $_; }
1333 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1338 Tell the world who we are, if they asked.
1340 print STDERR "${PROJECTNAME}, version ${PROJECTVERSION}, patchlevel ${PROJECTPATCHLEVEL}\n"
1344 %************************************************************************
1346 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1348 %************************************************************************
1350 Process the input files; don't continue with linking if there are
1351 problems (global variable @$Status@ non-zero).
1353 foreach $ifile (@Input_file) {
1354 &ProcessInputFile($ifile);
1357 if ( $Status > 0 ) { # don't link if there were errors...
1358 print STDERR $ShortUsage;
1363 # append last minute flags linker and consistency flags
1370 Link if appropriate.
1373 local($libdirs) = '';
1375 # glue them together:
1376 push(@UserLibrary_dir, @SysLibrary_dir);
1378 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1380 # for a linker, use an explicitly given one, or the going C compiler ...
1381 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1383 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1384 @Files_to_tidy = ($Specific_output_file ne '') ?
1385 $Specific_output_file :
1386 ( ($TargetPlatform eq 'i386-unknown-cygwin32') ? 'main.exe' : 'a.out');
1387 print STDERR "Output file not specified, defaulting to \"main.exe\"\n" if ($Specific_output_file eq '' && $TargetPlatform eq 'i386-unknown-cygwin32');
1389 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $TopClosureFile $libdirs @UserLibrary @SysLibrary";
1390 &run_something($to_do, 'Linker');
1392 # finally, check the consistency info in the binary
1393 local($executable) = $Files_to_tidy[0];
1394 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1397 # dynamically load consistency-chking code; then do it.
1398 require('ghc-consist.prl')
1399 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1401 &chk_consistency_info ( $executable );
1404 # if PVM parallel stuff, we do truly weird things.
1405 # Essentially: (1) move the executable over to where PVM expects
1406 # to find it. (2) create a script in place of the executable
1407 # which will cause the program to be run, via SysMan.
1408 if ( $PARing eq 'p' ) {
1409 local($pvm_executable) = $executable;
1410 local($pvm_executable_base);
1412 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1413 local($pwd) = `pwd`;
1415 $pwd =~ s/^\/tmp_mnt//;
1416 $pvm_executable = "$pwd/$pvm_executable";
1419 $pvm_executable =~ s|/|=|g; # make /s into =s
1420 $pvm_executable_base = $pvm_executable;
1422 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1423 . "/$pvm_executable";
1425 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1427 # OK, now create the magic script for "$executable"
1428 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1429 print EXEC <<EOSCRIPT1;
1430 eval 'exec perl -S \$0 \${1+"\$@"}'
1431 if \$running_under_some_shell;
1432 # =!=!=!=!=!=!=!=!=!=!=!
1433 # This script is automatically generated: DO NOT EDIT!!!
1434 # Generated by Glasgow Haskell, version ${PROJECTVERSION} ${PROJECTPATCHLEVEL}
1436 \$pvm_executable = '$pvm_executable';
1437 \$pvm_executable_base = '$pvm_executable_base';
1438 \$SysMan = '$SysMan';
1441 print EXEC <<\EOSCRIPT2;
1442 # first, some magical shortcuts to run "commands" on the binary
1444 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1446 system("$cmd $pvm_executable");
1450 # OK, really run it; process the args first
1451 $ENV{'PE'} = $pvm_executable_base;
1453 $nprocessors = 2; # the default
1457 # ToDo: handle --RTS
1458 args: while ($a = shift(@ARGV)) {
1459 if ( $a eq '+RTS' ) {
1461 } elsif ( $a eq '-RTS' ) {
1464 if ( $a eq '-d' && $in_RTS_args ) {
1466 } elsif ( $a =~ /^-N(\d+)/ && $in_RTS_args ) {
1469 push(@nonPVM_args, $a);
1473 local($return_val) = 0;
1474 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
1476 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
1479 close(EXEC) || die "Failed closing $executable\n";
1480 chmod 0755, $executable;
1484 # that... that's all, folks!
1486 exit $Status; # will still be 0 if all went well
1489 %************************************************************************
1491 \section[Driver-do-one-file]{How to process a single input file}
1493 %************************************************************************
1496 sub ProcessInputFile {
1497 local($ifile) = @_; # input file name
1498 local($ifile_root); # root of or basename of input file
1499 local($ofile_target); # ultimate output file we hope to produce
1500 # from input file (need to know for recomp
1501 # checking purposes)
1502 local($hifile_target);# ditto (but .hi file)
1505 Handle the weirdity of input from stdin.
1507 if ($ifile ne '-') {
1508 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1509 $ofile_target = # may be reset later...
1510 ($Specific_output_file ne '' && ! $Do_lnkr)
1511 ? $Specific_output_file
1512 : &odir_ify($ifile_root, 'o');
1513 $hifile_target= ($Specific_hi_file ne '')
1515 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1516 # NB: may change if $ifile_root isn't module name (??)
1518 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1519 $ifile_root = '_stdin';
1520 $ofile_target = '_stdout'; # gratuitous?
1521 $hifile_target= '_stdout'; # ditto?
1525 We need to decide what phases of the compilation system we will run
1526 over this file. The defaults are the ones established when processing
1527 flags. (That established what the last phase run for all files is.)
1529 We do the pre-recompilation-checker phases here; the rest later.
1533 Look at the suffix and decide what initial phases of compilation may
1534 be dropped off for this file. Also the rather boring business of
1535 which files are coming-in/going-out.
1537 Again, we'll do the post-recompilation-checker parts of this later.
1539 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1540 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1543 # names of the files to stuff between phases
1544 # defaults are temporaries
1545 local($in_lit2pgm) = $ifile;
1546 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1547 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1548 local($hsc_hi) = "$Tmp_prefix.hi";
1549 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1550 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1551 local($as_out) = $ofile_target;
1553 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
1555 # OK, let's strip off some literate junk..
1557 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
1559 $lit2pgm_hscpp = $ifile;
1565 # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas
1566 &check_for_source_options($lit2pgm_hscpp,$ifile);
1568 # Options found in the source file take a back seat, i.e., we scan
1569 # them first. Only process the command line again if source file
1570 # contained anything of interest *or* there's more than one
1571 # input file (we have to reset the options).
1573 if ( $#Input_file >= 0 || $#File_options >= 0) {
1574 #@File_options = (@File_options, @Cmd_opts);
1576 # Now process the command line
1577 &initDriverGlobals();
1578 &processArgs((@File_options,@Cmd_opts));
1579 print STDERR "\nEffective command line: " .
1580 join(' ',(@File_options,@Cmd_opts)) . "\n" if $Verbose;
1583 # Having got the effective command line scanned, set up
1584 # the various options in prep for some real work.
1586 # check the sanity of the BuildTag we're about to use,
1587 # and if needs be, add some more flags and setup to
1588 # the different phases.
1591 &setupOptimiseFlags();
1594 &setupWarningFlags();
1595 &setupHeapStackSize();
1598 # These two variables need to be set after the
1599 # command-line has been processed and the build options
1600 # have be seen set up. This is because command-line options
1601 # can control whether to compile vias C or not.
1603 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1605 : ( ($HscOut eq '-C=') ? 1 : 0 );
1606 local($do_as) = $Do_as;
1607 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1609 if ($Only_preprocess_hc) { # stop after having run $Cc -E
1612 if ($Only_preprocess_C) { # stop after having run $hscpp
1613 $do_hsc=0; $do_cc = 0; $do_as=0;
1614 } elsif ($ifile =~ /.lhs$/ || $ifile =~ /.hs$/ ) {
1616 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
1617 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1619 } elsif ($ifile =~ /\.c$/) {
1620 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1621 $hsc_out = $ifile; $is_hc_file = 0;
1622 } elsif ($ifile =~ /\.s$/) {
1623 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
1625 } else { # don't know what it is, but nothing to do herein...
1626 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
1629 # hack to avoid running hscpp
1630 $HsCpp = $Cat if ! $Cpp_flag_set;
1632 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) if $do_hscpp;
1636 We now think about whether to run hsc/cc or not (when hsc produces .s
1637 stuff, it effectively takes the place of both phases).
1639 To get the output file name right: for each phase that we are {\em
1640 not} going to run, set its input (i.e., the output of its preceding
1641 phase) to @"$ifile_root.<suffix>"@.
1644 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
1647 # Warning issued if -keep-hc-file-too is used without
1648 # -fvia-C (or the equivalent)
1650 if ( $HscOut ne '-C=' && $Keep_hc_file_too ) {
1651 print STDERR "$Pgm: warning: Native code generator to be used, -keep-hc-file-too will be ignored\n";
1654 if (! $do_cc && ! $do_as) { # stopping after hsc
1655 $hsc_out = ($Specific_output_file ne '')
1656 ? $Specific_output_file
1657 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
1659 $ofile_target = $hsc_out; # reset
1662 if (! $do_as) { # stopping after gcc (or hsc)
1663 $cc_as = ($Specific_output_file ne '')
1664 ? $Specific_output_file
1665 : &odir_ify($ifile_root, ( $Only_preprocess_hc ) ? 'i' : 's');
1667 $ofile_target = $cc_as; # reset
1673 Now the Haskell compiler, C compiler, and assembler
1677 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
1678 $ofile_target, $hifile_target);
1682 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
1683 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root) if ! $Only_preprocess_hc;
1686 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
1688 # save a copy of the .s file..
1689 &saveIntermediate($ifile_root , "s" , $cc_as) if ($do_as && $Keep_s_file_too);
1690 &runAs($as_out, $ifile_root) if $do_as;
1693 Finally, decide what to queue up for linker input.
1695 # tentatively assume we will eventually produce linker input:
1696 push(@Link_file, &odir_ify($ifile_root, 'o'));
1698 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
1700 if ( $ifile !~ /\.(lhs|hs|hc|c|s)$/ && $ifile !~ /_hc$/ ) {
1701 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n"
1702 if $ifile !~ /\.a$/;
1704 # oops; we tentatively pushed the wrong thing; fix & do the right thing
1705 pop(@Link_file); push(@Link_file, $ifile);
1709 } # end of ProcessInputFile
1712 %************************************************************************
1714 \section[Driver-run-phases]{Routines to run the various phases}
1716 %************************************************************************
1720 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
1724 # Only add #line pragma if we're going to need it.
1725 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && " if ($Cpp_flag_set);
1726 $to_do .= "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
1728 push(@Files_to_tidy, $lit2pgm_hscpp );
1730 &run_something($to_do, 'literate pre-processor');
1736 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
1740 # Strictly speaking, echoing of the following line pragma is only required
1741 # on non-delit'ed input, as we've already added it during de-lit. However,
1742 # hscpp will then add a {-# LINE 1 "$lit2pgm_hsc" -} to the top of the file,
1743 # which is not very informative (but harmless). Hence, we uniformly have
1744 # {-# LINE 1 "$in_lit2pgm" #-} as the first line to all cpp'ed hsc input.
1746 $to_do = "echo '{-# LINE 1 \"$in_lit2pgm\" -}' > $hscpp_hsc && ";
1748 if ($HsCpp eq $Cat) {
1749 $to_do .= "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
1750 push(@Files_to_tidy, $hscpp_hsc );
1751 &run_something($to_do, 'Ineffective C pre-processor');
1753 local($includes) = '-I' . join(' -I',@Include_dir);
1754 $to_do .= "$HsCpp $Verbose $genSPECS_flag @HsCpp_flags -D__HASKELL1__=$Haskell1Version -D__GLASGOW_HASKELL__=$GhcVersionInfo $includes $lit2pgm_hscpp >> $hscpp_hsc";
1755 push(@Files_to_tidy, $hscpp_hsc );
1756 &run_something($to_do, 'Haskellised C pre-processor');
1759 if ( $Only_preprocess_C ) {
1760 $to_do = "$Cat $hscpp_hsc";
1761 &run_something($to_do, '');
1769 sub runHscAndProcessInterfaces {
1770 local($ifile, $hscpp_hsc, $ifile_root, $ofile_target, $hifile_target) = @_;
1772 # $ifile is the original input file
1773 # $hscpp_hsc post-unlit, post-cpp, etc., input file
1774 # $ifile_root input filename minus suffix
1775 # $ofile_target the output file that we ultimately hope to produce
1776 # $hifile_target the .hi file ... (ditto)
1778 local($source_unchanged) = 1;
1780 # Check if the source file is up to date relative to the target; in
1781 # that case we say "source is unchanged" and let the compiler bail out
1782 # early if the import usage information allows it.
1784 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
1785 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
1787 # The informational messages below are now conditional on -v being set -- SOF
1788 if ( $ofile_target ne "_stdin.s" && ! -f $ofile_target ) {
1789 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n" if $Verbose;
1790 $source_unchanged = 0;
1793 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
1794 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
1796 if ( $hifile_target ne "_stdout" && ! -f $hifile_target ) {
1797 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n" if $Verbose;
1798 $source_unchanged = 0;
1801 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
1802 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
1804 if ( $ofile_target ne "_stdin.s" && $i_mtime > $o_mtime) {
1805 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n" if $Verbose;
1806 $source_unchanged = 0;
1809 # So if source_unchanged is still "1", we pass on the good news to the compiler
1810 # The -recomp flag can disable this, forcing recompilation
1811 if ($Do_recomp_chkr && $source_unchanged) {
1812 push(@HsC_flags, '-fsource-unchanged');
1817 &runHsc($ifile_root, $hsc_out, $hsc_hi, $going_interactive);
1819 # See if it bailed out early, saying nothing needed doing.
1820 # We work this out by seeing if it created an output .hi file
1822 if ( ! -f $hsc_hi && $ProduceHi !~ /-nohifile=/ ) {
1823 # Doesn't exist, so we bailed out early.
1824 # Tell the C compiler and assembler not to run
1825 $do_cc = 0; $do_as = 0;
1827 # Update dependency info, touch both object file and
1828 # interface file, so that the following invariant is
1831 # a dependent module's interface file should after recompilation
1832 # checking be newer than the interface files of its imports.
1834 # That is, if module A's interface file changes, then module B
1835 # (which import from A) needs to be checked.
1836 # If A's change does not affect B, which causes the compiler to bail
1837 # out early, we still need to touch the interface file of B. The reason
1838 # for this is that B may export A's interface.
1840 &run_something("touch $ofile_target",
1841 "Touch $ofile_target, to propagate dependencies") if $HscOut ne '-N=';
1842 &run_something("touch $hifile_target",
1843 "Touch $hifile_target, to propagate dependencies") if $ProduceHi =~ /-nohifile=/ ;
1847 # Didn't bail out early (new .hi file) so we thunder on
1849 # If non-interactive, heave in the consistency info at the end
1850 # NB: pretty hackish (depends on how $output is set)
1851 if ( ! $going_interactive ) {
1852 if ( $HscOut eq '-C=' ) {
1853 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
1855 } elsif ( $HscOut eq '-S=' ) {
1856 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
1857 $consist =~ s/,/./g;
1858 $consist =~ s/\//./g;
1859 $consist =~ s/-/_/g;
1860 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
1861 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
1863 &run_something($to_do, 'Pin on Haskell consistency info');
1867 # Interface-handling is important enough to live off by itself
1868 if ( $ProduceHi !~ /-nohifile=/ ) { # If we've produced one, process it.
1869 require('ghc-iface.prl') || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
1870 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
1872 # if we're going to split up object files,
1873 # we inject split markers into the .hc file now
1874 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
1875 &inject_split_markers ( $hsc_out );
1878 # save a copy of the .hc file, even if we are carrying on...
1879 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
1880 &saveIntermediate($ifile_root , "hc" , $hsc_out);
1890 local($ifile_root, $hsc_out, $hsc_hi, $going_interactive) = @_;
1892 # prepend comma to HsP flags (so hsc can tell them apart...)
1893 foreach $a ( @HsP_flags ) { $a = ",$a" unless $a =~ /^,/; }
1895 &makeHiMap() unless $HiMapDone;
1896 #print STDERR "HiIncludes: $HiIncludeString\n";
1897 push(@HsC_flags, "-himap=$HiIncludeString");
1899 # here, we may produce .hc/.s and/or .hi files
1900 local($output) = '';
1901 #@Files_to_tidy = ();
1903 if ( $going_interactive ) {
1904 # don't need .hi unless going to show it on stdout:
1905 $ProduceHi = '-nohifile=' if ! $HiOnStdout;
1906 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
1909 # set up for producing output/.hi; note that flag twiddling
1910 # may mean that nothing will actually be produced:
1911 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out";
1912 push(@Files_to_tidy, $hsc_hi, $hsc_out );
1914 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
1915 if ( $CollectingGCstats ) {
1916 push(@HsC_rts_flags, "-S$ifile_root.stat");
1917 push(@Files_to_tidy, "$ifile_root.stat");
1920 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
1921 # emit nofibbish time/bytes-alloc stats to stderr;
1922 # see later .stat file post-processing
1923 print STDERR "warning: both -Rgc-stats and -Rghc-timing used, -Rghc-timing wins." if $CollectingGCstats;
1924 push(@HsC_rts_flags, "-s$Tmp_prefix.stat");
1925 push(@Files_to_tidy, "$Tmp_prefix.stat");
1929 if ($Specific_dump_file ne '') {
1930 $dump = "2>> $Specific_dump_file";
1931 $Using_dump_file = 1;
1935 $to_do = "$HsC @HsP_flags ,$hscpp_hsc $dump @HsC_flags $CoreLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
1936 &run_something($to_do, 'Haskell compiler');
1938 # finish business w/ nofibbish time/bytes-alloc stats
1939 &process_ghc_timings() if $CollectGhcTimings;
1943 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
1944 of (module-name, pathname) pairs, one per line, separated by a space.
1947 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1951 # collect in %HiMap; write later; also used elsewhere in driver
1953 local($mod, $path, $d, $e);
1955 # reset the global variables:
1957 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1959 foreach $d ( @Import_dir ) {
1960 if ($HiIncludeString) {
1961 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix}";
1963 $HiIncludeString = "$d%.${HiSuffix}";
1968 foreach $d ( @SysImport_dir ) {
1969 if ($HiIncludeString) {
1970 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix_prelude}";
1972 $HiIncludeString = "${d}%.${HiSuffix_prelude}";
1981 %************************************************************************
1983 \section[Driver-misc-utils]{Miscellaneous utilities}
1985 %************************************************************************
1987 %************************************************************************
1989 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
1991 %************************************************************************
1995 local($ofile,$def_suffix) = @_;
1997 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
2001 local($orig_file, $def_suffix) = @_;
2002 if ($Specific_output_dir eq '') { # do nothing
2003 &osuf_ify($orig_file, $def_suffix);
2005 local ($orig_file_only);
2006 ($orig_file_only = $orig_file) =~ s|.*/||;
2007 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
2014 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
2016 local($includes) = '-I' . join(' -I', @Include_dir);
2019 local($c_flags) = "@CcBoth_flags";
2020 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2022 # "input" files to use that are not in some weird directory;
2023 # to help C compilers grok .hc files [ToDo: de-hackify]
2024 local($cc_help) = "ghc$$.c";
2025 local($cc_help_s) = "ghc$$.s";
2028 $s_output = ($is_hc_file || $TargetPlatform =~ /^(powerpc|rs6000|hppa|i386)/) ? $cc_as_o : $cc_as;
2029 $c_flags .= " @CcRegd_flags";
2030 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2032 # C compiler won't like the .hc extension. So we create
2033 # a tmp .c file which #include's the needful.
2034 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2035 if ( $is_hc_file ) {
2037 #ifdef __STG_GCC_REGS__
2038 # if ! (defined(MAIN_REG_MAP) || defined(MARK_REG_MAP) || defined(SCAN_REG_MAP) || defined(SCAV_REG_MAP) || defined(FLUSH_REG_MAP))
2039 # define MAIN_REG_MAP
2042 #include "stgdefs.h"
2044 # user may have asked for #includes to be injected...
2045 print TMP @CcInjects if $#CcInjects >= 0;
2047 # heave in the consistency info
2048 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2050 # and #include the real source
2051 print TMP "#include \"$hsc_out\"\n";
2052 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2054 # Don't redirect stderr into intermediate file if slamming output onto stdout (e.g., with -E)
2055 local($fuse_stderr) = "2>&1" if ! $Only_preprocess_hc;
2056 local($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 )";
2057 # note: __GLASGOW_HASKELL__ is pointedly *not* #defined at the C level.
2059 if ( $Only_preprocess_hc ) { # HACK ALERT!
2060 $to_do =~ s/ -S\b//g;
2062 push(@Files_to_tidy, $cc_help, $cc_help_s, $s_output );
2063 $PostprocessCcOutput = 1 if ! $Only_preprocess_hc; # hack, dear hack...
2064 &run_something($to_do, 'C compiler');
2065 $PostprocessCcOutput = 0;
2066 if ( $Only_preprocess_hc ) {
2067 system("$Cat $Tmp_prefix.ccout");
2069 unlink($cc_help, $cc_help_s);
2075 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2077 if ( $is_hc_file ) {
2078 # dynamically load assembler-fiddling code, which we are about to use:
2079 require('ghc-asm.prl')
2080 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2083 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2086 # post-process the assembler [.hc files only]
2087 &mangle_asm($cc_as_o, $cc_as);
2091 #OLD: local($target) = 'oops';
2092 #OLD: $target = '-alpha' if $TargetPlatform =~ /^alpha-/;
2093 #OLD: $target = '-hppa' if $TargetPlatform =~ /^hppa/;
2094 #OLD: $target = '-old-asm' if $TargetPlatform =~ /^i386-/;
2095 #OLD: $target = '-m68k' if $TargetPlatform =~ /^m68k-/;
2096 #OLD: $target = '-mips' if $TargetPlatform =~ /^mips-/;
2097 #OLD: $target = '' if $TargetPlatform =~ /^powerpc-/;
2098 #OLD: $target = '-solaris' if $TargetPlatform =~ /^sparc-sun-solaris2/;
2099 #OLD: $target = '-sparc' if $TargetPlatform =~ /^sparc-sun-sunos4/;
2101 #OLD: if ( $target ne '' ) {
2102 #OLD: require("ghc-asm$target.prl")
2103 #OLD: || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm$target.prl!\n");
2104 #OLD: &mangle_asm($cc_as_o, "$cc_as-2"); # the OLD one!
2105 #OLD: &run_something("$Cmp -s $cc_as-2 $cc_as || $Diff $cc_as-2 $cc_as 1>&2 || exit 0",
2106 #OLD: "Diff'ing old and new mangled .s files"); # NB: to stderr
2109 } elsif ($TargetPlatform =~ /^hppa/) {
2110 # minor mangling of non-threaded files for hp-pa only
2111 require('ghc-asm.prl')
2112 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2113 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2115 } elsif ($TargetPlatform =~ /^powerpc|^rs6000/) {
2116 # minor mangling of non-threaded files for powerpcs and rs6000s
2117 require('ghc-asm.prl')
2118 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-powerpc.prl!\n");
2119 &mini_mangle_asm_powerpc($cc_as_o, $cc_as);
2120 } elsif ($TargetPlatform =~ /^i386/) {
2121 # extremely-minor OFFENSIVE mangling of non-threaded just one file
2122 require('ghc-asm.prl')
2123 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2124 &mini_mangle_asm_i386($cc_as_o, $cc_as);
2127 # save a copy of the .s file, even if we are carrying on...
2128 #if ($do_as && $Keep_s_file_too) {
2129 # &saveIntermediate($ifile_root , "s" , $cc_as);
2136 local($as_out, $ifile_root) = @_;
2138 local($asmblr) = ( $As ) ? $As : $CcRegd;
2140 if ( ! $SplitObjFiles ) {
2141 local($to_do) = "$asmblr -o $as_out -c @As_flags $cc_as";
2142 push(@Files_to_tidy, $as_out );
2143 &run_something($to_do, 'Unix assembler');
2145 } else { # more complicated split-ification...
2147 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2149 # If -odir is used, great, just pin it in front of the
2150 # generated split file names. If it hasn't been set, we
2151 # snatch it from the ifile_root.
2155 if ( $Specific_output_dir eq '' ) {
2156 $Specific_output_dir = ${ifile_root};
2159 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2160 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2161 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2162 push(@Files_to_tidy, $split_out );
2164 &run_something($to_do, 'Unix assembler');
2170 %************************************************************************
2172 \subsection[Driver-run-something]{@run_something@: Run a phase}
2174 %************************************************************************
2178 local($str_to_do, $tidy_name) = @_;
2180 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2181 print STDERR "$str_to_do\n" if $Verbose;
2183 if ($Using_dump_file) {
2184 open(DUMP, ">> $Specific_dump_file")
2185 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2186 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2188 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2191 local($return_val) = 0;
2193 if ( length($str_to_do) > 4000) {
2194 # 4000 - on the random side, just like the *real* ARG_MAX
2197 # With some shells, command lines of this length may
2198 # very well cause trouble. To safeguard against this, we squirrel the
2199 # command into a file and exec that.
2200 local ($sh) = $ENV{'REAL_SHELL'};
2201 print STDERR "Backup plan A: saving cmd line in ${Tmp_prefix}.sh and executing that with $sh\n" if $Verbose;
2202 open (TEMP, "> ${Tmp_prefix}.sh") ||
2203 &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.sh'\n");
2204 print TEMP "$Time $str_to_do\n";
2206 &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.sh'\n");
2207 system("$sh $Tmp_prefix.sh");
2210 unlink "${Tmp_prefix}.sh";
2212 system("$Time $str_to_do");
2216 if ( $PostprocessCcOutput ) { # hack, continued
2217 open(CCOUT, "< $Tmp_prefix.ccout")
2218 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2220 next if /attribute directive ignored/;
2221 next if /call-clobbered/;
2222 next if /from .*COptRegs\.lh/;
2223 next if /from .*(stg|rts)defs\.h:/;
2224 next if /from ghc\d+.c:\d+:/;
2225 next if /from .*\.lc/;
2226 next if /from .*SMinternal\.l?h/;
2227 next if /ANSI C does not support \`long long\'/;
2228 next if /warning:.*was declared \`extern\' and later \`static\'/;
2229 next if /warning: assignment discards \`const\' from pointer target type/;
2230 next if /: At top level:$/;
2231 next if /: In function \`.*\':$/;
2232 next if /\`ghc_cc_ID\' defined but not used/;
2235 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2238 if ($return_val != 0) {
2239 if ($Using_dump_file) {
2240 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2243 &tidy_up_and_die($return_val, '');
2245 $Using_dump_file = 0;
2249 %************************************************************************
2251 \subsection[Driver-ghc-timing]{Emit nofibbish GHC timings}
2253 %************************************************************************
2255 NB: nearly the same as in @runstdtest@ script.
2258 sub process_ghc_timings {
2259 local($StatsFile) = "$Tmp_prefix.stat";
2260 local($SysSpecificTiming) = 'ghc';
2262 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2263 local($max_live) = 0;
2264 local($tot_live) = 0; # for calculating residency stuff
2265 local($tot_samples) = 0;
2268 if (! /Minor/ && /^\s*\d+\s+\d+\s+(\d+)\s+\d+\.\d+\%/ ) {
2269 $max_live = $1 if $max_live < $1;
2273 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2275 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2276 $MaxResidency = $1; $ResidencySamples = $2;
2279 $GCs = $1 if /^\s*([0-9,]+) garbage collections? performed/;
2281 # The presence of -? in the following pattern is only there to
2282 # accommodate 0.29 && <= 2.05 RTS'
2283 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*-?(\d+\.\d\d)s elapsed\)/ ) {
2284 $InitTime = $1; $InitElapsed = $2;
2285 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2286 $MutTime = $1; $MutElapsed = $2;
2287 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2288 $GcTime = $1; $GcElapsed = $2;
2291 close(STATS) || die "Failed when closing $StatsFile\n";
2292 if ( $tot_samples > 0 ) {
2293 $ResidencySamples = $tot_samples;
2294 $MaxResidency = $max_live;
2295 $AvgResidency = int ($tot_live / $tot_samples) ;
2298 # warn about what we didn't find
2299 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2300 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2301 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2302 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2303 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2304 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2305 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2306 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2308 # things we didn't necessarily expect to find
2309 $MaxResidency = 0 unless defined($MaxResidency);
2310 $AvgResidency = 0 unless defined($AvgResidency);
2311 $ResidencySamples = 0 unless defined($ResidencySamples);
2314 $BytesAlloc =~ s/,//g;
2315 $MaxResidency =~ s/,//g;
2317 $InitTime =~ s/,//g;
2318 $InitElapsed =~ s/,//g;
2320 $MutElapsed =~ s/,//g;
2322 $GcElapsed =~ s/,//g;
2324 # print out what we found
2325 print STDERR "<<$SysSpecificTiming: ",
2326 "$BytesAlloc bytes, $GCs GCs, $AvgResidency/$MaxResidency avg/max bytes residency ($ResidencySamples samples), $InitTime INIT ($InitElapsed elapsed), $MutTime MUT ($MutElapsed elapsed), $GcTime GC ($GcElapsed elapsed)",
2327 " :$SysSpecificTiming>>\n";
2334 %************************************************************************
2336 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2338 %************************************************************************
2342 local($to_do) = "\n$Rm $Tmp_prefix*";
2343 if ( $Tmp_prefix !~ /^\s*$/ ) {
2344 print STDERR "$to_do\n" if $Verbose;
2349 sub tidy_up_and_die {
2350 local($return_val, $msg) = @_;
2352 # delete any files to tidy
2353 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2354 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2358 exit (($return_val == 0) ? 0 : 1);
2362 %************************************************************************
2364 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2366 %************************************************************************
2368 Some command-line arguments take an argument, e.g.,
2369 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2370 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2371 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2373 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2374 gobble the second argument (and probably set the heapsize to something
2378 local(*Args, $option, $rest_of_arg) = @_;
2380 if ($rest_of_arg ne '') {
2381 return($rest_of_arg);
2382 } elsif ($#Args >= 0) {
2383 local($temp) = $Args[0]; shift(@Args);
2386 print STDERR "$Pgm: no argument following $option option\n";
2397 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2399 foreach $f ( @HsC_antiflags ) {
2400 return(0) if $flag eq $f;
2402 # foreach $f ( @HsC_flags ) {
2403 # return(0) if $flag eq $f;
2408 sub squashHscFlag { # pretty terrible
2412 foreach $f ( @HsC_flags ) {
2413 if ($flag eq $f) { $f = ''; }
2421 foreach $f ( @flags ) {
2422 push( @HsC_flags, $f ) if &isntAntiFlag($f);
2429 local($syslib) = @_;
2431 unshift(@SysImport_dir,
2432 ${INSTALLING} ? "$InstLibDir/imports/$syslib"
2433 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/$syslib");
2435 push(@SysLibrary_dir,
2436 ${INSTALLING} ? ("$InstLibDir")
2437 : ("$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/$syslib",
2438 "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/$syslib/cbits"));
2440 push(@SysLibrary, "-lHS$syslib");
2441 push(@SysLibrary, "-lHS${syslib}_cbits")
2442 unless $syslib eq 'contrib' || $syslib eq 'exts';
2443 #HACK! they have no cbits
2447 Source files may have {-# OPTIONS ... #-} pragmas at the top, containing
2448 command line options we want to append to collection of commands specified
2449 directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell
2450 file for any such pragmas:
2453 sub check_for_source_options {
2454 local($file,$ifile) = @_;
2455 local($comment_start,$comment_end);
2457 if ($ifile =~ /\.hc$/ ||
2460 $ifile =~ /_s$/ ) { # `Real' C intermediate
2461 $comment_start = "/\\*";
2462 $comment_end = "\\*/";
2463 } else { # Assume it is a file containing Haskell source
2464 $comment_start = "{-#";
2465 $comment_end = "#-}";
2468 open(FILE,$file) || return(1); # No big loss
2471 if ( /^${comment_start} OPTIONS (.*)${comment_end}$/ ) {
2472 # add the options found at the back of the command line.
2473 local(@entries) = split(/\s+/,$1);
2474 print STDERR "Found OPTIONS " . join(' ',@entries) . " in $file\n" if $Verbose;
2475 push(@File_options, @entries);
2477 elsif ( /^$/ ) { # ignore empty lines
2480 elsif ( /^#line.+$/ ) { # ignore comment lines (unused..ToDo: rm )
2483 elsif ( /^{-# LINE.+$/ ) { # ignore line pragmas
2486 else { # stop looking, something non-empty / not
2487 # ${comment_start} OPTIONS .. ${comment_end} encountered.
2488 close(FILE);return(0);
2497 We split the initial argv up into three arrays:
2503 the reason for doing so is to be able to deal
2504 with {-# OPTIONS #-} pragma in source files properly.
2510 arg: while($_ = $args[0]) {
2512 # sigh, we have to deal with these -option arg specially here.
2513 /^-(tmpdir|odir|ohi|o|isuf|osuf|hisuf|hisuf-prelude|odump|syslib)$/ &&
2514 do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; };
2515 /^--?./ && do { push(@Cmd_opts, $_); next arg; };
2517 if (/\.([^_]+_)?[oa]$/) {
2518 push(@Link_file, $_);
2520 push(@Input_file, $_);
2523 # input files must exist:
2525 print STDERR "$Pgm: input file doesn't exist: $_\n";
2533 When saving an intermediate file (.hc or .s) away, we
2534 have to prefix any OPTIONS found in the original source file.
2537 sub saveIntermediate {
2538 local ($final,$suffix,$tmp)= @_ ;
2541 # $final -- root of where to park ${final}.${suffix}
2542 # $tmp -- temporary file where hsc put the intermediate file.
2544 # Delete the old file
2545 $to_do = "$Rm ${final}.${suffix}"; &run_something($to_do, "Removing old .${suffix} file");
2547 if ( $#File_options >= 0 ) { # OPTIONS found in Haskell source unit
2548 # Add OPTION comment to the top of the generated .${suffix} file
2549 open(TEMP, "> ${final}.${suffix}") || &tidy_up_and_die(1,"Can't open ${final}.${suffix}\n");
2550 print TEMP "/* OPTIONS " . join(' ',@File_options) . " */\n";
2552 print STDERR "Prepending OPTIONS: " . join(' ',@File_options) . " to ${final}.${suffix}\n" if $Verbose;
2554 $to_do = "$Cat $tmp >> ${final}.${suffix}";
2555 &run_something($to_do, "Saving copy of .${suffix} file");
2562 Command-line processor
2568 # can't use getopt(s); what we want is too complicated
2570 arg: while($_ = $Args[0]) {
2573 #---------- help -------------------------------------------------------
2574 if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; }
2576 #-----------version ----------------------------------------------------
2577 /^--version$/ && do { print STDERR "${PROJECTNAME}, version ${PROJECTVERSION}, patchlevel ${PROJECTPATCHLEVEL}\n"; exit $Status; };
2579 #---------- verbosity and such -----------------------------------------
2580 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
2582 #---------- what phases are to be run ----------------------------------
2583 /^-(no-)?recomp/ && do { $Do_recomp_chkr = ($1 eq '') ? 1 : 0; next arg; };
2585 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
2586 # change the global default:
2587 # we won't run cat; we'll run the real thing
2589 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
2591 # stop after generating C
2593 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
2594 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
2596 # leave out actual C generation (debugging) [also turns off interface gen]
2598 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
2599 # _do_ generate an interface; usually used as: -noC -hi
2601 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
2602 # don't generate an interface (even if generating C)
2604 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
2605 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
2606 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
2607 /^-keep-hi-diffs$/ && do { $Keep_HiDiffs = 1; next arg; };
2609 # show/disable diffs if the interface file changes
2611 /^-E$/ && do { push(@CcBoth_flags, '-E');
2612 $Only_preprocess_C = 1;
2613 $Do_as = 0; $Do_lnkr = 0; next arg; };
2614 # stop after preprocessing C
2615 /^-M$/ && do { $Only_generate_deps = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2616 # only generate dependency information.
2617 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
2618 # stop after generating assembler
2620 /^-c$/ && do { $Do_lnkr = 0; next arg; };
2621 # stop after generating .o files
2623 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
2624 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
2625 # don't do consistency-checking after a link
2627 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', '');
2628 $Tmp_prefix = "$Tmp_prefix/ghc$$";
2629 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
2631 # use an alternate directory for temp files
2633 #---------- redirect output --------------------------------------------
2635 # -o <file>; applies to the last phase, whatever it is
2636 # "-o -" sends it to stdout
2637 # if <file> has a directory component, that dir must already exist
2639 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', '');
2641 # Hack, of the worst sort: don't do validation of
2642 # odir argument if you're using -M (dependency generation).
2644 if ( ! $Only_generate_deps && ! -d $Specific_output_dir) {
2645 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
2650 /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', '');
2651 if ($Specific_output_file ne '-'
2652 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
2653 local($dir_part) = $1;
2654 if (! -d $dir_part) {
2655 print STDERR "$Pgm: no such directory: $dir_part\n";
2661 # NB: -isuf not documented yet (because it doesn't work yet)
2662 /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', '');
2663 if ($Isuffix =~ /\./ ) {
2664 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
2669 /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', '');
2670 if ($Osuffix =~ /\./ ) {
2671 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
2676 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
2677 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', '');
2678 if ($Specific_hi_file ne '-'
2679 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
2680 local($dir_part) = $1;
2681 if (! -d $dir_part) {
2682 print STDERR "$Pgm: no such directory: $dir_part\n";
2688 # The suffix to use when looking for interface files
2689 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', '');
2690 if ($HiSuffix =~ /\./ ) {
2691 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
2695 # ToDo: remove, not a `normal' user thing to do (should be automatic)
2696 /^-hisuf-prelude$/ && do { $HiSuffix_prelude = &grab_arg_arg(*Args,'-hisuf-prelude', '');
2697 if ($HiSuffix =~ /\./ ) {
2698 print STDERR "$Pgm: -hisuf-prelude suffix shouldn't contain a .\n";
2702 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', '');
2703 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
2704 local($dir_part) = $1;
2705 if (! -d $dir_part) {
2706 print STDERR "$Pgm: no such directory: $dir_part\n";
2712 #-------------- scc & Profiling Stuff ----------------------------------
2714 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
2717 # generate auto SCCs on top level bindings
2718 # -auto-all = all top level bindings
2719 # -auto = only top level exported bindings
2720 $PROFauto = ( /-all/ )
2721 ? '-fauto-sccs-on-all-toplevs'
2722 : '-fauto-sccs-on-exported-toplevs';
2725 /^-caf-all/ && do { # generate individual CAF SCC annotations
2726 $PROFcaf = '-fauto-sccs-on-individual-cafs';
2729 /^-ignore-scc$/ && do {
2730 # forces ignore of scc annotations even if profiling
2731 $PROFignore_scc = '-W';
2734 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
2737 /^-unprof-scc-auto/ && do {
2738 # generate auto SCCs on top level bindings when not profiling.
2739 # Used to measure optimisation effects of presence of sccs.
2740 $UNPROFscc_auto = ( /-all/ )
2741 ? '-fauto-sccs-on-all-toplevs'
2742 : '-fauto-sccs-on-exported-toplevs';
2745 #--------- ticky/concurrent/parallel -----------------------------------
2746 # we sort out the details a bit later on
2748 /^-concurrent$/ && do { $CONCURing = 'c'; &add_syslib('conc'); next arg; };
2749 # concurrent Haskell; implies -syslib conc
2750 /^-gransim$/ && do { $GRANing = 'g'; next arg; }; # GranSim
2751 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
2752 /^-parallel$/ && do { $PARing = 'p'; next arg; }; # parallel Haskell
2754 #-------------- "user ways" --------------------------------------------
2756 (/^-user-setup-([a-oA-Z])$/ ) &&
2758 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
2760 local($stuff) = $UserSetupOpts{$BuildTag};
2761 local(@opts) = split(/\s+/, $stuff);
2763 # feed relevant ops into the arg-processing loop (if any)
2764 unshift(@Args, @opts) if $#opts >= 0;
2768 #---------- set search paths for libraries and things ------------------
2770 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
2771 # prepends the items to the list); -I is for including C .h files.
2773 /^-i$/ && do { @Import_dir = (); # import path cleared!
2774 @SysImport_dir = ();
2775 print STDERR "WARNING: import paths cleared by `-i'\n";
2778 /^-i(.*)/ && do { local(@new_items)
2779 = split( /:/, &grab_arg_arg(*Args,'-i', $1));
2780 unshift(@Import_dir, @new_items);
2783 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; };
2784 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; };
2785 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; };
2787 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1);
2788 print STDERR "$Pgm: no such system library (-syslib): $syslib\n",
2789 $Status++ unless $syslib =~ /^(exts|misc|posix)$/;
2792 # The posix library is a `special' in that it relies on
2793 # the ghc system library (packed strings). Wielding our
2794 # sledgehammer, the problem is solved by silently including
2795 # the ghc system library as well.
2796 # (ToDo: `nub' -syslib list)
2798 &add_syslib($syslib);
2799 if ( $syslib eq 'posix' ) {
2801 } elsif ( $syslib eq 'ghc' &&
2802 $TargetName =~ /-solaris2$/ ) {
2803 # needed for Berkeley socket/nwork stuff.
2804 push(@SysLibrary, '-lnsl');
2808 #=======================================================================
2809 # various flags that we can harmlessly send to one program or another
2810 # (we will later "reclaim" some of the compiler ones now sent to gcc)
2811 #=======================================================================
2813 #---------- this driver itself (ghc) -----------------------------------
2814 # these change what executable is run for each phase:
2815 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
2816 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
2817 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
2818 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
2819 /^-pgma(.*)$/ && do { $As = $1; next arg; };
2820 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
2821 /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; };
2823 #---------- the get-anything-through opts (all pgms) -------------------
2824 # these allow arbitrary option-strings to go to any phase:
2825 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
2826 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
2827 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
2828 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
2829 /^-optcpp(.*)$/ && do { push(@Cpp_define, $1); $Only_preprocess_hc = ($1 eq "-E"); next arg; };
2830 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
2831 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
2832 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
2833 /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; };
2835 #---------- Haskell C pre-processor (hscpp) ----------------------------
2836 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; };
2837 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; };
2839 /^-genSPECS/ && do { $Cpp_flag_set = 1;
2840 $genSPECS_flag = $_;
2843 #---------- post-Haskell "assembler"------------------------------------
2844 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
2845 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
2847 #---------- Haskell compiler (hsc) -------------------------------------
2849 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
2850 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
2852 /^-fhaskell-1\.3$/ && do { next arg; }; # a no-op right now
2854 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
2856 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
2857 # don't do stack checking using page fault `trick'.
2859 /^-fstack-check$/ && do { $StkChkByPageFaultOK = 0; next arg; };
2861 # have the compiler proper generate concurrent code,
2862 # really only used when you want to configure your own
2863 # special user compilation way. (Use -concurrent when
2864 # compiling `Concurrent Haskell' programs).
2866 # (ditto for -fgransim, fscc-profiling and -fticky-ticky)
2868 /^-fconcurrent$/ && do { push(@HsC_flags,$_); next arg; };
2869 /^-fscc-profiling$/ && do { push(@HsC_flags,$_); next arg; };
2870 /^-fticky-ticky$/ && do { push(@HsC_flags,$_); next arg; };
2871 /^-fgransim$/ && do { push(@HsC_flags,$_); next arg; };
2873 /^-split-objs/ && do {
2874 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|rs6000|sparc)-/ ) {
2876 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
2881 push(@HsC_flags, "-fglobalise-toplev-names");
2882 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
2884 require('ghc-split.prl')
2885 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
2890 && do { push(@HsC_flags, $_);
2891 push(@HsP_flags, '-N');
2893 # push(@HsC_flags, '-fshow-import-specs');
2895 # -fglasgow-exts implies -syslib exts
2896 &add_syslib('exts');
2900 /^-fspeciali[sz]e-unboxed$/
2901 && do { $Oopt_DoSpecialise = '-fspecialise';
2902 $Oopt_SpecialiseUnboxed = '-fspecialise-unboxed';
2905 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
2906 /^-fno-speciali[sz]e$/
2907 && do { $Oopt_DoSpecialise = ''; next arg; };
2910 # Now the foldr/build options, which are *on* by default (for -O).
2913 && do { $Oopt_FoldrBuild = 1;
2914 $Oopt_FB_Support = '-fdo-arity-expand';
2918 /^-fno-foldr-build$/
2919 && do { $Oopt_FoldrBuild = 0;
2920 $Oopt_FB_Support = '';
2923 /^-fno-foldr-build-rule$/
2924 && do { $Oopt_FoldrBuild = 0;
2927 /^-fno-enable-tech$/
2928 && do { $Oopt_FB_Support = '';
2931 /^-fno-snapback-to-append$/
2932 && do { $Oopt_FoldrBuildInline .= ' -fdo-not-fold-back-append ';
2935 # --------------- Renamer -------------
2938 /^-fno-prune-tydecls$/ && do { push(@HsC_flags, $_); next arg; };
2939 /^-fno-prune-instdecls$/ && do { push(@HsC_flags, $_); next arg; };
2943 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
2944 /^-fvia-[cC]$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
2948 /^(-funfolding-use-threshold)(.*)$/
2949 && do { $Oopt_UnfoldingUseThreshold = $1 . &grab_arg_arg(*Args,$1, $2);
2952 /^(-fmax-simplifier-iterations)(.*)$/
2953 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2);
2955 /^(-fshow-simplifier-progress)/
2956 && do { $Oopt_ShowSimplifierProgress = $1;
2959 /^-fno-pedantic-bottoms$/
2960 && do { $Oopt_PedanticBottoms = ''; next arg; };
2962 /^-fdo-monad-eta-expansion$/
2963 && do { $Oopt_MonadEtaExpansion = $_; next arg; };
2965 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
2966 && do { push(@HsC_flags, $_); next arg; };
2968 /^(-freturn-in-regs-threshold)(.*)$/
2969 && do { local($what) = $1;
2970 local($num) = &grab_arg_arg(*Args,$what, $2);
2971 if ($num < 2 || $num > 8) {
2972 die "Bad experimental flag: $_\n";
2974 $HscOut = '-C='; # force using C compiler
2975 push(@HsC_flags, "$what$num");
2976 push(@CcRegd_flags, "-D__STG_REGS_AVAIL__=$num");
2980 # --------------- Warnings etc. ------
2982 /^-fshow-import-specs/
2983 && do { push(@HsC_flags, $_); next arg; };
2985 /^-fsignatures-required/
2986 && do { push(@HsC_flags, $_); next arg; };
2988 /^-fwarn-(.*)$/ && do { push(@HsC_flags, $_); next arg; };
2990 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
2991 &squashHscFlag("-f$1");
2994 /^-W$/ && do { push(@HsC_flags, @MinusWOpts); next arg; };
2995 /^-Wall$/ && do { push(@HsC_flags, @MinusWallOpts); next arg; };
2996 /^(-Wnot|w)$/ && do { foreach (@Hsc_flags) {
2997 /^-fwarn-(.*)$/ && do { $_=''; };
2999 push(@HsC_antiflags, @StandardWarnings);
3002 # --------------- platform specific flags (for gcc mostly) ----------------
3004 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes,
3005 # for 2.6.x..?, does not apply for 2.7.2
3007 unshift(@CcBoth_flags, ( $_ ));
3010 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
3011 && do { # for GCC for SPARCs
3012 unshift(@CcBoth_flags, ( $_ ));
3015 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
3016 $StolenX86Regs = $1;
3019 #*************** ... and lots of debugging ones (form: -d* )
3021 # -d(no-)core-lint is done this way so it is turn-off-able.
3022 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
3023 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
3024 # Ditto for STG lint
3025 /^-dstg-lint/ && do { $StgLint = '-dstg-lint'; next arg; };
3026 /^-dno-stg-lint/ && do { $StgLint = ''; next arg; };
3028 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
3029 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
3030 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
3031 /^-dshow-rn-stats/ && do { push(@HsC_flags, $_); next arg; };
3032 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
3033 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
3034 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
3035 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
3037 #*************** ... and now all these -R* ones for its runtime system...
3039 /^-Rscale-sizes?(.*)/ && do {
3040 $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1);
3043 /^(-H|-Rmax-heapsize)(.*)/ && do {
3044 local($heap_size) = &grab_arg_arg(*Args,$1, $2);
3045 if ($heap_size =~ /(\d+)[Kk]$/) {
3046 $heap_size = $1 * 1000;
3047 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
3048 $heap_size = $1 * 1000 * 1000;
3049 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
3050 $heap_size = $1 * 1000 * 1000 * 1000;
3052 if ($heap_size <= 0) {
3053 print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n";
3054 $Specific_heap_size = 0;
3056 # if several heap sizes given, take the largest...
3057 } elsif ($heap_size >= $Specific_heap_size) {
3058 $Specific_heap_size = $heap_size;
3060 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n";
3064 /^(-K|Rmax-(stk|stack)size)(.*)/ && do {
3066 local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3);
3067 if ($stk_size =~ /(\d+)[Kk]$/) {
3068 $stk_size = $1 * 1000;
3069 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
3070 $stk_size = $1 * 1000 * 1000;
3071 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
3072 $stk_size = $1 * 1000 * 1000 * 1000;
3074 if ($stk_size <= 0) {
3075 print STDERR "$Pgm: resetting stack-size to zero!!! $stk_size\n";
3076 $Specific_stk_size = 0;
3078 # if several stack sizes given, take the largest...
3079 } elsif ($stk_size >= $Specific_stk_size) {
3080 $Specific_stk_size = $stk_size;
3082 print STDERR "$Pgm: ignoring stack-size-setting option ($flag $stk_size)...not the largest seen\n";
3086 /^-Rgc-stats$/ && do { $CollectingGCstats++;
3087 # the two RTSs do this diff ways; we will try to compensate
3090 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
3092 #---------- C high-level assembler (gcc) -------------------------------
3093 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
3095 # -dgcc-lint is a useful way of making GCC very fussy.
3096 # From alan@spri.levels.unisa.edu.au (Alan Modra).
3097 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
3098 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
3099 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
3101 # inject "#include <wurble>" into the compiler's C output!
3103 /^-#include(.*)/ && do {
3104 local($to_include) = &grab_arg_arg(*Args,'-#include', $1);
3105 push(@CcInjects, "#include $to_include\n");
3108 #---------- Linker (gcc, really) ---------------------------------------
3110 /^-static$/ && do { push(@Ld_flags, $_); next arg; };
3112 #---------- mixed cc and linker magic ----------------------------------
3113 # this optimisation stuff is finally sorted out later on...
3115 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
3117 /^-O[1-2]?$/ && do {
3118 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
3119 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
3121 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
3124 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
3126 /^-Ofile(.*)/ && do {
3128 local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1);
3129 @HsC_minusO3_flags = ();
3131 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
3134 s/\#.*//; # death to comments
3135 s/[ \t]+//g; # death to whitespace
3136 next if /^$/; # ditto, blank lines
3137 s/([()*{}])/\\$1/g; # protect shell metacharacters
3139 push(@CcBoth_flags, $1);
3141 push(@HsC_minusO3_flags, $_);
3147 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
3148 # in the consistency info
3152 #---------- linking .a file --------------------------------------------
3154 /^-Main(.*)/ && do {
3155 # specifies main or mainPrimIO to be linked
3159 #---------- catch unrecognized flags -----------------------------------
3162 print STDERR "$Pgm: unrecognised option: $_\n";
3168 } # end of processArgs