2 % (c) The GRASP/AQUA Project, Glasgow University, 1992-1997
5 This is the driver script for the Glasgow Haskell compilation system.
6 It is written in \tr{perl}. The first section includes a long
7 ``usage'' message that describes how the driver is supposed to work.
9 %************************************************************************
11 \section[Driver-usage]{Usage message}
13 %************************************************************************
16 ($Pgm = $0) =~ s|.*/||;
17 $ShortUsage = "\nUsage: For basic information, try the `-help' option.\n";
18 $LongUsage = "\n" . <<EOUSAGE;
19 Use of the Glorious Haskell Compilation System driver:
21 $Pgm [command-line-options-and-input-files]
23 ------------------------------------------------------------------------
24 This driver ($Pgm) guides each input file through (some of the)
25 possible phases of a compilation:
27 - unlit: extract code from a "literate program"
28 - hscpp: run code through the C pre-processor (if -cpp flag given)
29 - hsc: run the Haskell compiler proper
30 - gcc: run the C compiler (if compiling via C)
31 - as: run the assembler
34 For each input file, the phase to START with is determined by the
36 - .lhs literate Haskell: unlit
37 - .hs illiterate Haskell: hsc
38 - .hc C from the Haskell compiler: gcc
39 - .c C not from the Haskell compiler: gcc
40 - .s assembly language: as
41 - other passed directly to the linker: ld
43 If no files are given on the command line, input is taken from
44 standard input, and processing is as for an .hs file. (All output is
45 to stdout or stderr, however).
47 The phase at which to STOP processing is determined by a command-line
49 -E stop after generating preprocessed, de-litted Haskell (used in conjunction with -cpp)
50 -C stop after generating C (.hc output)
51 -S stop after generating assembler (.s output)
52 -c stop after generating object files (.o output)
54 Other commonly-used options are:
56 -O An `optimising' package of compiler flags, for faster code
58 -prof Compile for cost-centre profiling
59 (add -auto for automagic cost-centres on top-level functions)
61 -fglasgow-exts Allow Glasgow extensions (unboxed types, etc.)
63 -H14m Increase compiler's heap size
65 -M Output the Makefile rules recording the
66 dependencies of a list of Haskell files.
67 (ghc driver script calls upon the help of a
68 compatible mkdependHS script to do the actual
71 The User's Guide has more information about GHC's *many* options.
73 Given the above, here are some TYPICAL invocations of $Pgm:
75 # compile a Haskell module to a .o file, optimising:
77 # link three .o files into an executable called "test":
78 % $Pgm -o test Foo.o Bar.o Baz.o
79 # compile a Haskell module to C (a .hc file), using a bigger heap:
80 % $Pgm -C -H16m Foo.hs
81 # compile Haskell-produced C (.hc) to assembly language:
83 ------------------------------------------------------------------------
87 %************************************************************************
89 \section[Driver-init]{Initialisation}
91 %************************************************************************
93 The driver script need to be told where to find these executables, so
94 in the course of building the driver `executable', make-variables holding
95 these are prepended to the de-litted version of this file. The variables are:
100 HOSTPLATFORM TARGETPLATFORM
102 PROJECTNAME PROJECTVERSION PROJECTPATCHLEVEL
106 bindir libdir libexecdir datadir
110 GHC_LIB_DIR GHC_RUNTIME_DIR GHC_UTILS_DIR GHC_INCLUDE_DIR
112 GHC_OPT_HILEV_ASM GhcWithNativeCodeGen
114 GHC_UNLIT GHC_HSCPP GHC_HSC GHC_SYSMAN
118 WAY_*_NAME WAY_*_HC_OPTS
124 Establish what executables to run for the various phases, what the
125 default options are for those phases, and other similar boring stuff.
128 select(STDERR); $| = 1; select(STDOUT); # no STDERR buffering, please.
130 $TargetPlatform = $TARGETPLATFORM;
132 $TopPwd = "${TOP_PWD}";
133 $InstBinDirGhc = "${bindir}";
134 $InstLibDirGhc = "${libdir}";
136 # Normally the same as InstLibDirGhc, but we accommodate
137 # for it being separate.
139 $InstLibExecDirGhc = "${libexecdir}";
140 $InstDataDirGhc = "${datadir}";
141 $InstSysLibDir = ( $INSTALLING ) ? "${InstLibDirGhc}/hslibs" : "$TopPwd/hslibs";
143 $Status = 0; # just used for exit() status
146 # set up signal handler
147 sub quit_upon_signal { &tidy_up_and_die(1, ''); }
148 $SIG{'INT'} = 'quit_upon_signal';
149 $SIG{'QUIT'} = 'quit_upon_signal';
151 # where to get "require"d .prl files at runtime (poor man's dynamic loading)
152 # (use LIB, not DATA, because we can't be sure of arch-independence)
153 @INC = ( ( $INSTALLING ) ? $InstLibDirGhc
154 : "$TopPwd/${CURRENT_DIR}" );
156 if ( $ENV{'TMPDIR'} ) { # where to make tmp file names
157 $Tmp_prefix = ($ENV{'TMPDIR'} . "/ghc$$");
159 print STDERR "TMPDIR has not been set to anything useful!\n" if (${TMPDIR} eq '');
160 $Tmp_prefix ="${TMPDIR}/ghc$$"; # TMPDIR set via Makefile when booting..
161 $ENV{'TMPDIR'} = ${TMPDIR}; # set the env var as well
164 # Some shells run into real trouble when command line and environment
165 # gets big (e.g., cmd lines of >4K to /bin/sh causes havoc on our
166 # Solaris-2.5.1 boxes - even though sysconf(_SC_ARG_MAX) reports 1M ...).
167 # To work around any such */bin/sh* problems, we will scribble such
168 # awfully long command lines into a temp file and exec that temp file
169 # with $(REAL_SHELL) (don't use the SHELL variable directly as this
170 # will normally get you the wrong thing when the driver is invoked
171 # from within `make'). If the REAL_SHELL variable isn't set, you'll
172 # get SHELL. This is all a terrible hack. (in case you hadn't reached
173 # the same conclusion by now :-)
177 if ( ! $ENV{'REAL_SHELL'} ) {
178 $ENV{'REAL_SHELL'} = $ENV{'SHELL'};
181 @Files_to_tidy = (); # files we nuke in the case of abnormal termination
183 $Unlit = ( $INSTALLING ) ? "$InstLibExecDirGhc/unlit"
184 : "$TopPwd/${CURRENT_DIR}/${GHC_UNLIT}";
188 $Diff = $CONTEXT_DIFF;
193 $HsCpp = # but this is re-set to "cat" (after options) if -cpp not seen
194 ( $INSTALLING ) ? "$InstLibExecDirGhc/hscpp"
195 : "$TopPwd/${CURRENT_DIR}/${GHC_HSCPP}";
198 $genSPECS_flag = ''; # See ../utils/hscpp/hscpp.prl
199 $HsC = ( $INSTALLING ) ? "$InstLibExecDirGhc/hsc"
200 : "$TopPwd/${CURRENT_DIR}/${GHC_HSC}";
202 # For PVM fiends only
203 $SysMan = ( $INSTALLING ) ? "$InstLibExecDirGhc/SysMan"
204 : "$TopPwd/${CURRENT_DIR}/${GHC_SYSMAN}";
209 # HsC_rts_flags: if we want to talk to the LML runtime system
210 # NB: we don't use powers-of-2 sizes, because this may do
211 # terrible things to cache behavior.
213 $Specific_heap_size = 6 * 1000 * 1000;
214 $Specific_stk_size = 1000 * 1000;
215 $Scale_sizes_by = 1.0;
219 The variables set by @setupOptFlags@ represent parts of the
220 -O/-O2/etc ``templates,'' which are filled in later, using these.
221 These are the default values, which may be changed by user flags.
225 $Oopt_UnfoldingUseThreshold = '-fsimpl-uf-use-threshold3';
226 $Oopt_MaxSimplifierIterations = '-fmax-simplifier-iterations4';
227 $Oopt_PedanticBottoms = '-fpedantic-bottoms'; # ON by default
228 $Oopt_MonadEtaExpansion = '';
229 $Oopt_FinalStgProfilingMassage = '';
231 $Oopt_SpecialiseUnboxed = '';
232 $Oopt_DoSpecialise = ''; # ToDo:LATER: '-fspecialise';
233 $Oopt_FoldrBuild = 0; # *Off* by default!
234 $Oopt_FB_Support = ''; # was '-fdo-arity-expand';
235 # $Oopt_FoldrBuildWW = 0; # Off by default
236 $Oopt_FoldrBuildInline = ''; # was '-fdo-inline-foldr-build';
237 $Oopt_ShowSimplifierProgress = '';
238 } # end of setupOptFlags
240 # Assign defaults to these right away.
244 Things to do with C compilers/etc:
246 $CcRegd = $GHC_OPT_HILEV_ASM;
247 @CcBoth_flags = ('-S'); # flags for *any* C compilation
251 # those for all files,
252 # those only for .c files;
253 # those only for .hc files
255 @CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__');
256 @CcRegd_flags_c = ();
257 @CcRegd_flags_hc = ();
259 $As = ''; # "assembler" is normally GCC
262 $Lnkr = ''; # "linker" is normally GCC
265 # 'nm' is used for consistency checking (ToDo: mk-world-ify)
266 # ToDo: check the OS or something ("alpha" is surely not the crucial question)
267 $Nm = ($TargetPlatform =~ /^alpha-/) ? 'nm -B' : 'nm';
270 Warning packages that are controlled by -W and -Wall. The 'standard'
271 warnings that you get all the time are
273 -fwarn-overlapping-patterns
274 -fwarn-missing-methods
276 these are turned off by -Wnot.
279 @StandardWarnings = ('-fwarn-overlapping-patterns',
280 '-fwarn-missing-methods');
281 @MinusWOpts = (@StandardWarnings,
282 '-fwarn-incomplete-patterns',
283 '-fwarn-unused-names');
284 @MinusWallOpts = (@MinusWOpts,
285 '-fwarn-name-shadowing');
288 What options \tr{-user-setup-a} turn into (user-defined ``packages''
290 of options). Note that a particular user-setup implies a particular
291 Prelude ({\em including} its interface file(s)).
293 $BuildTag = ''; # default is sequential build w/ Appel-style GC
295 %BuildDescr = (# system ways begin
296 '', 'normal sequential',
300 '_mc', "$WAY_mc_NAME",
301 '_mr', "$WAY_mr_NAME",
302 '_mt', "$WAY_mt_NAME",
303 '_mp', "$WAY_mp_NAME",
304 '_mg', "$WAY_mg_NAME",
305 '_2s', "$WAY_2s_NAME",
306 '_1s', "$WAY_1s_NAME",
307 '_du', "$WAY_du_NAME",
325 '_B', "$WAY_B_NAME" );
327 # these are options that are "fed back" through the option processing loop
331 '_a', "$WAY_a_HC_OPTS",
332 '_b', "$WAY_b_HC_OPTS",
333 '_c', "$WAY_c_HC_OPTS",
334 '_d', "$WAY_d_HC_OPTS",
335 '_e', "$WAY_e_HC_OPTS",
336 '_f', "$WAY_f_HC_OPTS",
337 '_g', "$WAY_g_HC_OPTS",
338 '_h', "$WAY_h_HC_OPTS",
339 '_i', "$WAY_i_HC_OPTS",
340 '_j', "$WAY_j_HC_OPTS",
341 '_k', "$WAY_k_HC_OPTS",
342 '_l', "$WAY_l_HC_OPTS",
343 '_m', "$WAY_m_HC_OPTS",
344 '_n', "$WAY_n_HC_OPTS",
345 '_o', "$WAY_o_HC_OPTS",
346 '_A', "$WAY_A_HC_OPTS",
347 '_B', "$WAY_B_HC_OPTS",
350 '_p', "$WAY_p_HC_OPTS",
351 '_t', "$WAY_t_HC_OPTS",
352 '_u', "$WAY_u_HC_OPTS",
353 '_mc', "$WAY_mc_HC_OPTS",
354 '_mr', "$WAY_mr_HC_OPTS",
355 '_mt', "$WAY_mt_HC_OPTS",
356 '_mp', "$WAY_mp_HC_OPTS",
357 '_mg', "$WAY_mg_HC_OPTS",
358 '_2s', "$WAY_2s_HC_OPTS",
359 '_1s', "$WAY_1s_HC_OPTS",
360 '_du', "$WAY_B_HC_OPTS" );
364 Import/include directories (\tr{-I} options) are sufficiently weird to
365 require special handling.
368 @Import_dir = ('.'); #-i things
369 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
371 # where to look for interface files (system hi's, i.e., prelude and hslibs)
372 @SysImport_dir = ( $INSTALLING )
373 ? ( "$InstLibDirGhc/imports" )
374 : ( "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/required"
375 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/ghc"
376 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/glaExts"
377 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent" );
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"
394 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/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 map(s/-#include.*$/'$&'/g, @Cmd_opts);
582 local($to_do) = "$MkDependHS @MkDependHS_flags -- @Cmd_opts -- @Input_file" ;
583 &run_something($to_do, 'Haskell dependencies');
587 # if there are several input files,
588 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
589 # (except if linking, of course)
591 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
592 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
593 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
594 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
595 print STDERR "\tPerhaps the -odir option will do what you want.\n";
600 # check for various pathological -o and -odir combinations...
601 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
602 if ($Specific_output_file eq '-') {
603 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
605 } else { # amalgamate...
606 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
607 # ToDo: check we haven't got a junk name now...
608 $Specific_output_dir = ''; # reset
612 # crash and burn if there were errors
614 print STDERR $ShortUsage;
619 %************************************************************************
621 \section[Driver-post-argv-mangling]{Setup after reading options}
623 %************************************************************************
625 %************************************************************************
627 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
629 %************************************************************************
631 We come now to the default ``wads of options'' that are turned on by
632 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
633 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
636 The user can also specify his/her own list of options in a file; in
637 that case, the work is already done (see stuff about @minusO3@,
640 GHC allows very precise control of what happens during a compilation.
641 Core-to-Core and STG-to-STG passes can be run in any order, as many
642 times as you like. Individual transformations can be turned on or
645 Sadly, however, there are some interdependencies \& Things You Must
646 Not Do. Here is the list.
650 \item[\tr{-fspecialise}:]
651 The specialiser must have dependency-analysed input; but if you run
652 the simplifier to do this, you must not let it toss away unused
653 bindings! (The typechecker conveys some specialisation info via
654 ``unused'' bindings...)
656 \item[\tr{-ffloat-inwards}:]
657 Floating inwards should be done before strictness analysis, because
658 the latter will give better results.
660 \item[\tr{-fstatic-args}:]
661 The static-arguments-transformation pass {\em must} have the
662 simplifier run right after it.
664 \item[\tr{-fcalc-inlinings[12]}:]
665 Not required, but there may be slight gains by re-simplifying after
666 this is done. (You could then \tr{-fcalc-inlinings} again, just for
669 \item[\tr{-ffull-laziness}:]
670 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
671 that's run. (Um, well, howzabout the simplifier just once more...)
676 \item[\tr{-fupdate-analysis}:]
677 It really really wants to be the last STG-to-STG pass that is run.
682 sub setupOptimiseFlags {
688 '-ffloat-lets-exposing-whnf',
689 '-ffloat-primops-ok',
692 # '-fdo-lambda-eta-expansion', # too complicated
694 # '-flet-to-case', # no strictness analysis, so...
695 $Oopt_PedanticBottoms,
696 # $Oopt_MonadEtaExpansion, # no thanks
698 # These two work fine, if you really want no simplification at all,
699 # for bizarre test reasons. But you get really terrible code if you use them,
700 # for example: let x = e in x
701 # with dozens of redundant thunks etc. So I'm leaving them out.
703 # '-fsimpl-uf-use-threshold0',
704 # '-fessential-unfoldings-only',
706 $Oopt_UnfoldingUseThreshold,
707 $Oopt_MaxSimplifierIterations,
708 $Oopt_ShowSimplifierProgress,
711 # '-ffull-laziness', # removed 95/04 WDP following Andr\'e's lead
713 $Oopt_FinalStgProfilingMassage
716 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
718 '-fdo-eta-reduction',
720 # initial simplify: mk specialiser happy: minimum effort please
724 '-fkeep-spec-pragma-ids', # required before specialisation
726 # I don't understand why we want -fessential-unfoldings-only here
727 # If we have it, the following nasty thing happens:
731 # where "*" means exported.
732 # In the essential-unfoldings pass we still substitute f for g
733 # but we don't substitute E for f first. So we get
737 # The g=f will get reverse-substituted later, but it's untidy.
739 # '-fessential-unfoldings-only',
740 # '-fsimpl-uf-use-threshold0',
742 '-fmax-simplifier-iterations1',
743 $Oopt_PedanticBottoms,
746 ($Oopt_DoSpecialise) ? (
747 '-fspecialise-overloaded',
748 $Oopt_SpecialiseUnboxed,
752 '-fsimplify', # need dependency anal after specialiser ...
753 '[', # need tossing before calc-inlinings ...
755 '-ffloat-lets-exposing-whnf',
756 '-ffloat-primops-ok',
760 # '-fdo-eta-reduction',
761 '-fdo-lambda-eta-expansion',
763 $Oopt_PedanticBottoms,
764 $Oopt_MonadEtaExpansion,
765 $Oopt_UnfoldingUseThreshold,
766 $Oopt_MaxSimplifierIterations,
767 $Oopt_ShowSimplifierProgress,
770 #LATER: '-fcalc-inlinings1', -- pointless for 2.01
772 # ($Oopt_FoldrBuildWW) ? (
773 # '-ffoldr-build-ww-anal',
774 # '-ffoldr-build-worker-wrapper',
778 # '-ffloat-lets-exposing-whnf',
779 # '-ffloat-primops-ok',
783 # '-fdo-eta-reduction',
784 # '-fdo-lambda-eta-expansion',
786 # $Oopt_PedanticBottoms,
787 # $Oopt_MonadEtaExpansion,
788 # $Oopt_UnfoldingUseThreshold,
789 # $Oopt_MaxSimplifierIterations,
790 # $Oopt_ShowSimplifierProgress,
794 # this pass-ordering sequence was agreed by Simon and Andr\'e
795 # (WDP 94/07, 94/11).
798 ($Oopt_FoldrBuild) ? (
799 '-ffoldr-build-on', # desugar list comprehensions for foldr/build
803 '-fignore-inline-pragma', # **** NB!
804 '-fdo-foldr-build', # NB
806 '-ffloat-lets-exposing-whnf',
807 '-ffloat-primops-ok',
811 # '-fdo-eta-reduction',
812 '-fdo-lambda-eta-expansion', # After full laziness
814 $Oopt_PedanticBottoms,
815 $Oopt_MonadEtaExpansion,
816 $Oopt_UnfoldingUseThreshold,
817 $Oopt_MaxSimplifierIterations,
818 $Oopt_ShowSimplifierProgress,
827 '-ffloat-lets-exposing-whnf',
828 '-ffloat-primops-ok',
832 '-fdo-eta-reduction',
833 '-fdo-lambda-eta-expansion',
835 ($Oopt_FoldrBuildInline),
836 # you need to inline foldr and build
837 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
838 # but do reductions if you see them!
839 $Oopt_PedanticBottoms,
840 $Oopt_MonadEtaExpansion,
841 $Oopt_UnfoldingUseThreshold,
842 $Oopt_MaxSimplifierIterations,
843 $Oopt_ShowSimplifierProgress,
851 '-ffloat-lets-exposing-whnf',
852 '-ffloat-primops-ok',
856 # '-fdo-eta-reduction',
857 '-fdo-lambda-eta-expansion',
859 '-flet-to-case', # Aha! Only done after strictness analysis
860 $Oopt_PedanticBottoms,
861 $Oopt_MonadEtaExpansion,
862 $Oopt_UnfoldingUseThreshold,
863 $Oopt_MaxSimplifierIterations,
864 $Oopt_ShowSimplifierProgress,
869 # Case-liberation for -O2. This should be after
870 # strictness analysis and the simplification which follows it.
874 # : "-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 ]" ),
876 # Final clean-up simplification:
881 '-ffloat-lets-exposing-whnf',
882 '-ffloat-primops-ok',
886 # '-fdo-eta-reduction',
887 '-fdo-lambda-eta-expansion',
890 '-fignore-inline-pragma', # **** NB!
891 $Oopt_FoldrBuildInline,
892 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
893 # but still do reductions if you see them!
894 $Oopt_PedanticBottoms,
895 $Oopt_MonadEtaExpansion,
896 $Oopt_UnfoldingUseThreshold,
897 $Oopt_MaxSimplifierIterations,
898 $Oopt_ShowSimplifierProgress,
903 #LATER: '-fcalc-inlinings2', -- pointless for 2.01
908 $Oopt_FinalStgProfilingMassage,
914 # SPECIAL FLAGS for -O2
922 Sort out what we're going to do about optimising. First, the @hsc@
923 flags and regular @cc@ flags to worry about:
925 if ( $OptLevel <= 0 ) {
927 # for this level, we tell the parser -fignore-interface-pragmas
928 push(@HsC_flags, '-fignore-interface-pragmas');
929 # and tell the compiler not to produce them
930 push(@HsC_flags, '-fomit-interface-pragmas');
932 &add_Hsc_flags( @HsC_minusNoO_flags );
933 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
935 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
937 &add_Hsc_flags( @HsC_minusO_flags );
938 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
939 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
940 # but it *is* useful in compiling the garbage collectors (so said
941 # Patrick many moons ago...).
943 } else { # -Ofile, then...
945 &add_Hsc_flags( @HsC_minusO3_flags );
946 push(@HsC_flags, $Oopt_FinalStgProfilingMassage) if $Oopt_FinalStgProfilingMassage;
948 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
951 } # setupOptimiseFlags
955 %************************************************************************
957 \subsection{Check for consistency, etc.}
959 %************************************************************************
961 Sort out @$BuildTag@, @$PROFing@, @$CONCURing@, @$PARing@,
962 @$GRANing@, @$TICKYing@:
964 sub setupBuildFlags {
967 # PROFILING stuff after argv mangling:
969 # warn about any scc exprs found (in case scc used as identifier)
970 push(@HsP_flags, '-W');
972 # add -auto sccs even if not profiling !
973 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
976 push(@HsC_flags, $PROFauto) if $PROFauto;
977 push(@HsC_flags, $PROFcaf) if $PROFcaf;
978 #push(@HsC_flags, $PROFdict) if $PROFdict;
980 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
982 push(@HsP_flags, (($PROFignore_scc) ? $PROFignore_scc : '-S'));
984 if ( $SplitObjFiles ) {
985 # can't split with cost centres -- would need global and externs
986 print STDERR "$Pgm: WARNING: splitting objects when profiling will *BREAK* if any _scc_s are present!\n";
987 # (but it's fine if there aren't any _scc_s around...)
988 # $SplitObjFiles = 0; # unset
989 #not an error: for now: $Status++;
992 #if ( $BuildTag ne '' ) {
993 # local($b) = $BuildDescr{$BuildTag};
994 # if ($CONCURing eq 'c') { print STDERR "$Pgm: Can't mix $b with -concurrent.\n"; exit 1; }
995 # if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
996 # if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
997 # if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
999 # # ok to have a user-way profiling build
1000 # # eval the profiling opts ... but leave user-way BuildTag
1001 # if ($PROFing eq 'p') { &processArgs(split(' ', $SetupOpts{'_p'})); } # eval($EvaldSetupOpts{'_p'}); }
1003 if ( $PROFing eq 'p' ) {
1004 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
1005 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
1006 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
1007 $BuildTag = ($CONCURing eq 'c') ? '_mr' : '_p' ; # possibly "profiled concurrent"...
1009 } elsif ( $CONCURing eq 'c' ) {
1010 if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix -concurrent with -parallel.\n"; exit 1; }
1011 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -concurrent with -gransim.\n"; exit 1; }
1012 $BuildTag = ($TICKYing eq 't') ? '_mt' : '_mc' ; # possibly "ticky concurrent"...
1013 # "profiled concurrent" already acct'd for...
1015 } elsif ( $PARing eq 'p' ) {
1016 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
1017 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
1020 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
1021 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
1025 } elsif ( $GRANing eq 'g' ) {
1026 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
1029 } elsif ( $TICKYing eq 't' ) {
1035 After the sanity checks, add flags to the necessary parts of the driver pipeline:
1038 if ( $BuildTag ne '' ) { # something other than normal sequential...
1040 local($Tag) = "${BuildTag}";
1041 $Tag =~ s/_//; # move the underscore to the back
1043 $HscOut = '-C='; # must go via C
1044 &processArgs(split(' ', $SetupOpts{$BuildTag}));
1045 # eval($EvaldSetupOpts{$BuildTag});
1049 Decide what the consistency-checking options are in force for this run:
1052 $HsC_consist_options = "${BuildTag},${DEBUGging}";
1053 $Cc_consist_options = "${BuildTag},${DEBUGging}";
1056 # Funny place to put it, but why not.
1058 if ( $HiSuffix_prelude eq '' ) {
1059 local($Tag) = "${BuildTag}";
1061 $Tag = "${Tag}_" if $Tag ne '';
1062 $HiSuffix_prelude="${Tag}hi";
1064 #push(@HsC_flags, "-hisuf-prelude=.${HiSuffix_prelude}"); # use appropriate Prelude .hi files
1065 #push(@HsC_flags, "-hisuf=.${HiSuffix}");
1070 %************************************************************************
1072 \subsection{Add on machine-specific C-compiler flags}
1074 %************************************************************************
1076 Shove on magical machine-specific options. We use \tr{unshift} to
1077 stick them on the {\em front} of the arrays, so that ``later''
1078 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
1080 Note: a few ``always apply'' flags were set at the very beginning.
1085 if ($TargetPlatform =~ /^alpha-/) {
1086 # we know how to *mangle* asm for alpha
1087 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1088 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1089 unshift(@CcBoth_flags, ('-static'));
1091 } elsif ($TargetPlatform =~ /^hppa/) {
1092 # we know how to *mangle* asm for hppa
1093 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1094 unshift(@CcBoth_flags, ('-static'));
1096 # We don't put in '-mlong-calls', because it's only
1097 # needed for very big modules (sigh), and we don't want
1098 # to hobble ourselves further on all the other modules
1101 # [Dated comment (gcc-2.6.x?), -mlong-calls is no longer
1102 # a supported gcc HPPA flag]
1103 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
1104 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
1105 # (very nice, but too bad the HP /usr/include files don't agree.)
1107 } elsif ($TargetPlatform =~ /^i386-/) {
1108 # we know how to *mangle* asm for X86
1109 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1110 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK && $TargetPlatform !~ /nextstep/;
1111 # I do not know how to do STACK_CHECK_BY_PAGE_FAULT
1112 # on NeXTs (my fault, not theirs), so I don't.
1115 # -fno-defer-pop : basically the same game as for m68k
1117 # -fomit-frame-pointer : *must* ; because we're stealing
1118 # the fp (%ebp) for our register maps. *All* register
1119 # maps (in MachRegs.lh) must steal it.
1121 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1122 unshift(@CcRegd_flags, '-fomit-frame-pointer');
1123 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1125 } elsif ($TargetPlatform =~ /^m68k-/) {
1126 # we know how to *mangle* asm for m68k
1127 unshift (@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1128 unshift (@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK && $TargetPlatform !~ /nextstep/;
1129 # I do not know how to do STACK_CHECK_BY_PAGE_FAULT
1130 # on NeXTs (my fault, not theirs), so I don't.
1133 # -fno-defer-pop : for the .hc files, we want all the pushing/
1134 # popping of args to routines to be explicit; if we let things
1135 # be deferred 'til after an STGJUMP, imminent death is certain!
1137 # -fomit-frame-pointer : *don't*
1138 # It's better to have a6 completely tied up being a frame pointer
1139 # rather than let GCC pick random things to do with it.
1140 # (If we want to steal a6, then we would try to do things
1141 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1143 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1144 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1145 # maybe gives reg alloc a better time
1146 # also: -fno-defer-pop is not sufficiently well-behaved without it
1148 } elsif ($TargetPlatform =~ /^mips-/) {
1149 # we (hope to) know how to *mangle* asm for MIPSen
1150 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1151 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1152 unshift(@CcBoth_flags, ('-static'));
1154 } elsif ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1155 # we know how to *mangle* asm for PowerPC
1156 # :-( unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1157 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1158 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1159 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1160 } elsif ($TargetPlatform =~ /^sparc-/) {
1161 # we know how to *mangle* asm for SPARC
1162 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1163 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1166 } # end of setupMachOpts
1169 %************************************************************************
1171 \subsection{Set up for warnings}
1173 %************************************************************************
1175 Several warnings are turned on by default. These are supposed to be
1176 the 'I'm pretty sure you've made a mistake here' kind of warnings.
1177 The rest are turned on by the -W and -Wall options, or individually
1178 via their -fwarn and -fno-warn flags.
1181 sub setupWarningFlags {
1182 &add_Hsc_flags( @StandardWarnings );
1186 Same unshifting magic, but for special linker flags.
1188 The configure script determines whether the object file symbol tables
1189 have a leading underscore, and sets @LeadingUnderscore@ accordingly.
1190 (The driver script `sees' the setting of the @LeadingUnderscore@
1191 by having the Makefile prepend it).
1195 local($uscore) = ( ${LeadingUnderscore} eq 'YES' ) ? '_' : '';
1198 (($Ld_main) ? ( '-u', "${uscore}Main_" . $Ld_main . '_closure' ) : ()));
1200 ( '-u', "${uscore}PrelBase_Z91Z93_closure" # i.e., []
1201 ,'-u', "${uscore}PrelBase_IZh_static_info"
1202 ,'-u', "${uscore}PrelBase_CZh_static_info"
1203 ,'-u', "${uscore}PrelBase_False_inregs_info"
1204 ,'-u', "${uscore}PrelBase_True_inregs_info"
1205 ,'-u', "${uscore}DEBUG_REGS"
1207 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1208 # sometimes we have lots of toc entries...
1209 # unshift(@Ld_flags, ('-Xlinker -bbigtoc -Xlinker -bnoquiet'));
1210 unshift(@Ld_flags, ('-Xlinker -bbigtoc'));
1213 } # end of setupLinkOpts
1217 %************************************************************************
1219 \subsection{Set up include paths and system-library enslurpment}
1221 %************************************************************************
1223 Now that we know what garbage-collector, etc., are required, we can
1224 finalise our list of libraries to slurp through, and generally Get
1229 # default includes must be added AFTER option processing
1230 if ( ! $INSTALLING ) {
1231 push (@Include_dir, "$TopPwd/${CURRENT_DIR}/${GHC_INCLUDE_DIR}");
1233 push (@Include_dir, "$InstLibDirGhc/includes");
1234 push (@Include_dir, "$InstLibDirGhc/includes");
1236 } # end of setupIncPaths
1241 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1244 foreach $f (@SysLibrary) {
1245 next if $f =~ /_cbits/;
1246 $f .= $BuildTag if $f =~ /^-lHS/;
1249 # fiddle the TopClosure file name...
1250 $TopClosureFile =~ s/XXXX//;
1252 # Push library HSrts, plus boring clib bit
1253 push(@SysLibrary, "-lHSrts${BuildTag}");
1254 push(@SysLibrary, '-lHSclib');
1256 # RTS compiled with cygwin32, uses the WinMM API
1257 # to implement the itimers, since cygwin.dll does not
1258 # support it. Only reqd. for `ways' that use itimers.
1260 push(@SysLibrary, '-lwinmm') if $BuildTag ne '' && $TargetPlatform eq 'i386-unknown-cygwin32';
1262 # Push the pvm libraries
1263 if ($BuildTag eq '_mp') {
1264 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1265 push(@SysLibrary, "-L$pvmlib", '-lpvm3', '-lgpvm3');
1266 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1267 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1268 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1269 push(@SysLibrary, '-lsocket', '-lnsl');
1273 # Push the GNU multi-precision arith lib; and the math library
1274 push(@SysLibrary, '-lgmp');
1275 push(@SysLibrary, '-lm');
1278 %************************************************************************
1280 \subsection{Check that this system was built to do what we are asking}
1282 %************************************************************************
1284 Before continuing we check that the appropriate build is available.
1287 #die "$Pgm: no BuildAvail?? $BuildTag\n" if $BuildDescr{$BuildTag} eq '' ; # sanity
1289 if ( $BuildDescr{$BuildTag} eq '' ) {
1290 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1291 "' \"build\" is not available with your GHC setup.\n";
1292 print STDERR "(It was not configured for it at your site.)\n";
1293 print STDERR $ShortUsage;
1297 } # end of setupSyslibs
1301 %************************************************************************
1303 \subsection{Final miscellaneous setup bits before we start going}
1305 %************************************************************************
1307 Record largest specific heapsize, if any.
1309 sub setupHeapStackSize {
1310 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1311 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1312 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1313 push(@HsC_rts_flags, "-K$Specific_stk_size");
1317 If no input or link files seen, then we let 'em feed in stdin; this is
1318 mainly for debugging.
1322 if ($#Input_file < 0 && $#Link_file < 0) {
1323 @Input_file = ( '-' );
1325 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1326 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n" if -t;
1327 while (<STDIN>) { print INF $_; }
1328 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1333 Tell the world who we are, if they asked.
1335 print STDERR "${PROJECTNAME}, version ${PROJECTVERSION}, patchlevel ${PROJECTPATCHLEVEL}\n"
1339 %************************************************************************
1341 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1343 %************************************************************************
1345 Process the input files; don't continue with linking if there are
1346 problems (global variable @$Status@ non-zero).
1348 foreach $ifile (@Input_file) {
1349 &ProcessInputFile($ifile);
1352 if ( $Status > 0 ) { # don't link if there were errors...
1353 print STDERR $ShortUsage;
1358 # append last minute flags linker and consistency flags
1365 Link if appropriate.
1368 local($libdirs) = '';
1370 # glue them together:
1371 push(@UserLibrary_dir, @SysLibrary_dir);
1373 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1375 # for a linker, use an explicitly given one, or the going C compiler ...
1376 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1378 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1379 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1381 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $TopClosureFile $libdirs @UserLibrary @SysLibrary";
1382 &run_something($to_do, 'Linker');
1384 # finally, check the consistency info in the binary
1385 local($executable) = $Files_to_tidy[0];
1386 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1389 # dynamically load consistency-chking code; then do it.
1390 require('ghc-consist.prl')
1391 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1393 &chk_consistency_info ( $executable );
1396 # if PVM parallel stuff, we do truly weird things.
1397 # Essentially: (1) move the executable over to where PVM expects
1398 # to find it. (2) create a script in place of the executable
1399 # which will cause the program to be run, via SysMan.
1400 if ( $PARing eq 'p' ) {
1401 local($pvm_executable) = $executable;
1402 local($pvm_executable_base);
1404 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1405 local($pwd) = `pwd`;
1407 $pwd =~ s/^\/tmp_mnt//;
1408 $pvm_executable = "$pwd/$pvm_executable";
1411 $pvm_executable =~ s|/|=|g; # make /s into =s
1412 $pvm_executable_base = $pvm_executable;
1414 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1415 . "/$pvm_executable";
1417 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1419 # OK, now create the magic script for "$executable"
1420 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1421 print EXEC <<EOSCRIPT1;
1422 eval 'exec perl -S \$0 \${1+"\$@"}'
1423 if \$running_under_some_shell;
1424 # =!=!=!=!=!=!=!=!=!=!=!
1425 # This script is automatically generated: DO NOT EDIT!!!
1426 # Generated by Glasgow Haskell, version ${PROJECTVERSION} ${PROJECTPATCHLEVEL}
1428 \$pvm_executable = '$pvm_executable';
1429 \$pvm_executable_base = '$pvm_executable_base';
1430 \$SysMan = '$SysMan';
1433 print EXEC <<\EOSCRIPT2;
1434 # first, some magical shortcuts to run "commands" on the binary
1436 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1438 system("$cmd $pvm_executable");
1442 # OK, really run it; process the args first
1443 $ENV{'PE'} = $pvm_executable_base;
1445 $nprocessors = 2; # the default
1449 # ToDo: handle --RTS
1450 args: while ($a = shift(@ARGV)) {
1451 if ( $a eq '+RTS' ) {
1453 } elsif ( $a eq '-RTS' ) {
1456 if ( $a eq '-d' && $in_RTS_args ) {
1458 } elsif ( $a =~ /^-N(\d+)/ && $in_RTS_args ) {
1461 push(@nonPVM_args, $a);
1465 local($return_val) = 0;
1466 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
1468 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
1471 close(EXEC) || die "Failed closing $executable\n";
1472 chmod 0755, $executable;
1476 # that... that's all, folks!
1478 exit $Status; # will still be 0 if all went well
1481 %************************************************************************
1483 \section[Driver-do-one-file]{How to process a single input file}
1485 %************************************************************************
1488 sub ProcessInputFile {
1489 local($ifile) = @_; # input file name
1490 local($ifile_root); # root of or basename of input file
1491 local($ofile_target); # ultimate output file we hope to produce
1492 # from input file (need to know for recomp
1493 # checking purposes)
1494 local($hifile_target);# ditto (but .hi file)
1497 Handle the weirdity of input from stdin.
1499 if ($ifile ne '-') {
1500 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1501 $ofile_target = # may be reset later...
1502 ($Specific_output_file ne '' && ! $Do_lnkr)
1503 ? $Specific_output_file
1504 : &odir_ify($ifile_root, 'o');
1505 $hifile_target= ($Specific_hi_file ne '')
1507 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1508 # NB: may change if $ifile_root isn't module name (??)
1510 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1511 $ifile_root = '_stdin';
1512 $ofile_target = '_stdout'; # gratuitous?
1513 $hifile_target= '_stdout'; # ditto?
1517 We need to decide what phases of the compilation system we will run
1518 over this file. The defaults are the ones established when processing
1519 flags. (That established what the last phase run for all files is.)
1521 We do the pre-recompilation-checker phases here; the rest later.
1525 Look at the suffix and decide what initial phases of compilation may
1526 be dropped off for this file. Also the rather boring business of
1527 which files are coming-in/going-out.
1529 Again, we'll do the post-recompilation-checker parts of this later.
1531 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1532 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1535 # names of the files to stuff between phases
1536 # defaults are temporaries
1537 local($in_lit2pgm) = $ifile;
1538 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1539 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1540 local($hsc_hi) = "$Tmp_prefix.hi";
1541 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1542 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1543 local($as_out) = $ofile_target;
1545 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
1547 # OK, let's strip off some literate junk..
1549 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
1551 $lit2pgm_hscpp = $ifile;
1557 # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas
1558 &check_for_source_options($lit2pgm_hscpp,$ifile);
1560 # Options found in the source file take a back seat, i.e., we scan
1561 # them first. Only process the command line again if source file
1562 # contained anything of interest *or* there's more than one
1563 # input file (we have to reset the options).
1565 if ( $#Input_file >= 0 || $#File_options >= 0) {
1566 #@File_options = (@File_options, @Cmd_opts);
1568 # Now process the command line
1569 &initDriverGlobals();
1570 &processArgs((@File_options,@Cmd_opts));
1571 print STDERR "\nEffective command line: " .
1572 join(' ',(@File_options,@Cmd_opts)) . "\n" if $Verbose;
1575 # Having got the effective command line scanned, set up
1576 # the various options in prep for some real work.
1578 # check the sanity of the BuildTag we're about to use,
1579 # and if needs be, add some more flags and setup to
1580 # the different phases.
1583 &setupOptimiseFlags();
1586 &setupWarningFlags();
1587 &setupHeapStackSize();
1590 # These two variables need to be set after the
1591 # command-line has been processed and the build options
1592 # have be seen set up. This is because command-line options
1593 # can control whether to compile vias C or not.
1595 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1597 : ( ($HscOut eq '-C=') ? 1 : 0 );
1598 local($do_as) = $Do_as;
1599 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1601 if ($Only_preprocess_hc) { # stop after having run $Cc -E
1604 if ($Only_preprocess_C) { # stop after having run $hscpp
1605 $do_hsc=0; $do_cc = 0; $do_as=0;
1606 } elsif ($ifile =~ /.lhs$/ || $ifile =~ /.hs$/ ) {
1608 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
1609 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1611 } elsif ($ifile =~ /\.c$/) {
1612 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1613 $hsc_out = $ifile; $is_hc_file = 0;
1614 } elsif ($ifile =~ /\.s$/) {
1615 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
1617 } else { # don't know what it is, but nothing to do herein...
1618 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
1621 # hack to avoid running hscpp
1622 $HsCpp = $Cat if ! $Cpp_flag_set;
1624 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) if $do_hscpp;
1628 We now think about whether to run hsc/cc or not (when hsc produces .s
1629 stuff, it effectively takes the place of both phases).
1631 To get the output file name right: for each phase that we are {\em
1632 not} going to run, set its input (i.e., the output of its preceding
1633 phase) to @"$ifile_root.<suffix>"@.
1636 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
1639 # Warning issued if -keep-hc-file-too is used without
1640 # -fvia-C (or the equivalent)
1642 if ( $HscOut ne '-C=' && $Keep_hc_file_too ) {
1643 print STDERR "$Pgm: warning: Native code generator to be used, -keep-hc-file-too will be ignored\n";
1646 if (! $do_cc && ! $do_as) { # stopping after hsc
1647 $hsc_out = ($Specific_output_file ne '')
1648 ? $Specific_output_file
1649 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
1651 $ofile_target = $hsc_out; # reset
1654 if (! $do_as) { # stopping after gcc (or hsc)
1655 $cc_as = ($Specific_output_file ne '')
1656 ? $Specific_output_file
1657 : &odir_ify($ifile_root, ( $Only_preprocess_hc ) ? 'i' : 's');
1659 $ofile_target = $cc_as; # reset
1665 Now the Haskell compiler, C compiler, and assembler
1669 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
1670 $ofile_target, $hifile_target);
1674 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
1675 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root) if ! $Only_preprocess_hc;
1678 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
1680 # save a copy of the .s file..
1681 &saveIntermediate($ifile_root , "s" , $cc_as) if ($do_as && $Keep_s_file_too);
1682 &runAs($as_out, $ifile_root) if $do_as;
1685 Finally, decide what to queue up for linker input.
1687 # tentatively assume we will eventually produce linker input:
1688 push(@Link_file, &odir_ify($ifile_root, 'o'));
1690 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
1692 if ( $ifile !~ /\.(lhs|hs|hc|c|s)$/ && $ifile !~ /_hc$/ ) {
1693 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n"
1694 if $ifile !~ /\.a$/;
1696 # oops; we tentatively pushed the wrong thing; fix & do the right thing
1697 pop(@Link_file); push(@Link_file, $ifile);
1701 } # end of ProcessInputFile
1704 %************************************************************************
1706 \section[Driver-run-phases]{Routines to run the various phases}
1708 %************************************************************************
1712 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
1716 # Only add #line pragma if we're going to need it.
1717 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && " if ($Cpp_flag_set);
1718 $to_do .= "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
1720 push(@Files_to_tidy, $lit2pgm_hscpp );
1722 &run_something($to_do, 'literate pre-processor');
1728 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
1732 # Strictly speaking, echoing of the following line pragma is only required
1733 # on non-delit'ed input, as we've already added it during de-lit. However,
1734 # hscpp will then add a {-# LINE 1 "$lit2pgm_hsc" -} to the top of the file,
1735 # which is not very informative (but harmless). Hence, we uniformly have
1736 # {-# LINE 1 "$in_lit2pgm" #-} as the first line to all cpp'ed hsc input.
1738 $to_do = "echo '{-# LINE 1 \"$in_lit2pgm\" -}' > $hscpp_hsc && ";
1740 if ($HsCpp eq $Cat) {
1741 $to_do .= "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
1742 push(@Files_to_tidy, $hscpp_hsc );
1743 &run_something($to_do, 'Ineffective C pre-processor');
1745 local($includes) = '-I' . join(' -I',@Include_dir);
1746 $to_do .= "$HsCpp $Verbose $genSPECS_flag @HsCpp_flags -D__HASKELL1__=$Haskell1Version -D__GLASGOW_HASKELL__=$GhcVersionInfo $includes $lit2pgm_hscpp >> $hscpp_hsc";
1747 push(@Files_to_tidy, $hscpp_hsc );
1748 &run_something($to_do, 'Haskellised C pre-processor');
1751 if ( $Only_preprocess_C ) {
1752 $to_do = "$Cat $hscpp_hsc";
1753 &run_something($to_do, '');
1761 sub runHscAndProcessInterfaces {
1762 local($ifile, $hscpp_hsc, $ifile_root, $ofile_target, $hifile_target) = @_;
1764 # $ifile is the original input file
1765 # $hscpp_hsc post-unlit, post-cpp, etc., input file
1766 # $ifile_root input filename minus suffix
1767 # $ofile_target the output file that we ultimately hope to produce
1768 # $hifile_target the .hi file ... (ditto)
1770 local($source_unchanged) = 1;
1772 # Check if the source file is up to date relative to the target; in
1773 # that case we say "source is unchanged" and let the compiler bail out
1774 # early if the import usage information allows it.
1776 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
1777 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
1779 # The informational messages below are now conditional on -v being set -- SOF
1780 if ( $ofile_target ne "_stdin.s" && ! -f $ofile_target ) {
1781 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n" if $Verbose;
1782 $source_unchanged = 0;
1785 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
1786 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
1788 if ( $hifile_target ne "_stdout" && ! -f $hifile_target ) {
1789 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n" if $Verbose;
1790 $source_unchanged = 0;
1793 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
1794 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
1796 if ( $ofile_target ne "_stdin.s" && $i_mtime > $o_mtime) {
1797 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n" if $Verbose;
1798 $source_unchanged = 0;
1801 # So if source_unchanged is still "1", we pass on the good news to the compiler
1802 # The -recomp flag can disable this, forcing recompilation
1803 if ($Do_recomp_chkr && $source_unchanged) {
1804 push(@HsC_flags, '-fsource-unchanged');
1809 &runHsc($ifile_root, $hsc_out, $hsc_hi, $going_interactive);
1811 # See if it bailed out early, saying nothing needed doing.
1812 # We work this out by seeing if it created an output .hi file
1814 if ( ! -f $hsc_hi && $ProduceHi !~ /-nohifile=/ ) {
1815 # Doesn't exist, so we bailed out early.
1816 # Tell the C compiler and assembler not to run
1817 $do_cc = 0; $do_as = 0;
1819 # Update dependency info, touch both object file and
1820 # interface file, so that the following invariant is
1823 # a dependent module's interface file should after recompilation
1824 # checking be newer than the interface files of its imports.
1826 # That is, if module A's interface file changes, then module B
1827 # (which import from A) needs to be checked.
1828 # If A's change does not affect B, which causes the compiler to bail
1829 # out early, we still need to touch the interface file of B. The reason
1830 # for this is that B may export A's interface.
1832 &run_something("touch $ofile_target",
1833 "Touch $ofile_target, to propagate dependencies") if $HscOut ne '-N=';
1834 &run_something("touch $hifile_target",
1835 "Touch $hifile_target, to propagate dependencies") if $ProduceHi =~ /-nohifile=/ ;
1839 # Didn't bail out early (new .hi file) so we thunder on
1841 # If non-interactive, heave in the consistency info at the end
1842 # NB: pretty hackish (depends on how $output is set)
1843 if ( ! $going_interactive ) {
1844 if ( $HscOut eq '-C=' ) {
1845 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
1847 } elsif ( $HscOut eq '-S=' ) {
1848 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
1849 $consist =~ s/,/./g;
1850 $consist =~ s/\//./g;
1851 $consist =~ s/-/_/g;
1852 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
1853 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
1855 &run_something($to_do, 'Pin on Haskell consistency info');
1859 # Interface-handling is important enough to live off by itself
1860 if ( $ProduceHi !~ /-nohifile=/ ) { # If we've produced one, process it.
1861 require('ghc-iface.prl') || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
1862 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
1864 # if we're going to split up object files,
1865 # we inject split markers into the .hc file now
1866 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
1867 &inject_split_markers ( $hsc_out );
1870 # save a copy of the .hc file, even if we are carrying on...
1871 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
1872 &saveIntermediate($ifile_root , "hc" , $hsc_out);
1882 local($ifile_root, $hsc_out, $hsc_hi, $going_interactive) = @_;
1884 # prepend comma to HsP flags (so hsc can tell them apart...)
1885 foreach $a ( @HsP_flags ) { $a = ",$a" unless $a =~ /^,/; }
1887 &makeHiMap() unless $HiMapDone;
1888 #print STDERR "HiIncludes: $HiIncludeString\n";
1889 push(@HsC_flags, "-himap=$HiIncludeString");
1891 # here, we may produce .hc/.s and/or .hi files
1892 local($output) = '';
1893 #@Files_to_tidy = ();
1895 if ( $going_interactive ) {
1896 # don't need .hi unless going to show it on stdout:
1897 $ProduceHi = '-nohifile=' if ! $HiOnStdout;
1898 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
1901 # set up for producing output/.hi; note that flag twiddling
1902 # may mean that nothing will actually be produced:
1903 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out";
1904 push(@Files_to_tidy, $hsc_hi, $hsc_out );
1906 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
1907 if ( $CollectingGCstats ) {
1908 push(@HsC_rts_flags, "-S$ifile_root.stat");
1909 push(@Files_to_tidy, "$ifile_root.stat");
1912 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
1913 # emit nofibbish time/bytes-alloc stats to stderr;
1914 # see later .stat file post-processing
1915 print STDERR "warning: both -Rgc-stats and -Rghc-timing used, -Rghc-timing wins." if $CollectingGCstats;
1916 push(@HsC_rts_flags, "-s$Tmp_prefix.stat");
1917 push(@Files_to_tidy, "$Tmp_prefix.stat");
1921 if ($Specific_dump_file ne '') {
1922 $dump = "2>> $Specific_dump_file";
1923 $Using_dump_file = 1;
1927 $to_do = "$HsC @HsP_flags ,$hscpp_hsc $dump @HsC_flags $CoreLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
1928 &run_something($to_do, 'Haskell compiler');
1930 # finish business w/ nofibbish time/bytes-alloc stats
1931 &process_ghc_timings() if $CollectGhcTimings;
1935 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
1936 of (module-name, pathname) pairs, one per line, separated by a space.
1939 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1943 # collect in %HiMap; write later; also used elsewhere in driver
1945 local($mod, $path, $d, $e);
1947 # reset the global variables:
1949 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1951 foreach $d ( @Import_dir ) {
1952 if ($HiIncludeString) {
1953 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix}";
1955 $HiIncludeString = "$d%.${HiSuffix}";
1960 foreach $d ( @SysImport_dir ) {
1961 if ($HiIncludeString) {
1962 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix_prelude}";
1964 $HiIncludeString = "${d}%.${HiSuffix_prelude}";
1973 %************************************************************************
1975 \section[Driver-misc-utils]{Miscellaneous utilities}
1977 %************************************************************************
1979 %************************************************************************
1981 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
1983 %************************************************************************
1987 local($ofile,$def_suffix) = @_;
1989 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
1993 local($orig_file, $def_suffix) = @_;
1994 if ($Specific_output_dir eq '') { # do nothing
1995 &osuf_ify($orig_file, $def_suffix);
1997 local ($orig_file_only);
1998 ($orig_file_only = $orig_file) =~ s|.*/||;
1999 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
2006 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
2008 local($includes) = '-I' . join(' -I', @Include_dir);
2011 local($c_flags) = "@CcBoth_flags";
2012 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2014 # "input" files to use that are not in some weird directory;
2015 # to help C compilers grok .hc files [ToDo: de-hackify]
2016 local($cc_help) = "ghc$$.c";
2017 local($cc_help_s) = "ghc$$.s";
2020 $s_output = ($is_hc_file || $TargetPlatform =~ /^(powerpc|rs6000|hppa|i386)/) ? $cc_as_o : $cc_as;
2021 $c_flags .= " @CcRegd_flags";
2022 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2024 # C compiler won't like the .hc extension. So we create
2025 # a tmp .c file which #include's the needful.
2026 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2027 if ( $is_hc_file ) {
2029 #ifdef __STG_GCC_REGS__
2030 # if ! (defined(MAIN_REG_MAP) || defined(MARK_REG_MAP) || defined(SCAN_REG_MAP) || defined(SCAV_REG_MAP) || defined(FLUSH_REG_MAP))
2031 # define MAIN_REG_MAP
2034 #include "stgdefs.h"
2036 # user may have asked for #includes to be injected...
2037 print TMP @CcInjects if $#CcInjects >= 0;
2039 # heave in the consistency info
2040 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2042 # and #include the real source
2043 print TMP "#include \"$hsc_out\"\n";
2044 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2046 # Don't redirect stderr into intermediate file if slamming output onto stdout (e.g., with -E)
2047 local($fuse_stderr) = "2>&1" if ! $Only_preprocess_hc;
2048 local($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 )";
2049 # note: __GLASGOW_HASKELL__ is pointedly *not* #defined at the C level.
2051 if ( $Only_preprocess_hc ) { # HACK ALERT!
2052 $to_do =~ s/ -S\b//g;
2054 push(@Files_to_tidy, $cc_help, $cc_help_s, $s_output );
2055 $PostprocessCcOutput = 1 if ! $Only_preprocess_hc; # hack, dear hack...
2056 &run_something($to_do, 'C compiler');
2057 $PostprocessCcOutput = 0;
2058 if ( $Only_preprocess_hc ) {
2059 system("$Cat $Tmp_prefix.ccout");
2061 unlink($cc_help, $cc_help_s);
2067 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2069 if ( $is_hc_file ) {
2070 # dynamically load assembler-fiddling code, which we are about to use:
2071 require('ghc-asm.prl')
2072 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2075 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2078 # post-process the assembler [.hc files only]
2079 &mangle_asm($cc_as_o, $cc_as);
2083 #OLD: local($target) = 'oops';
2084 #OLD: $target = '-alpha' if $TargetPlatform =~ /^alpha-/;
2085 #OLD: $target = '-hppa' if $TargetPlatform =~ /^hppa/;
2086 #OLD: $target = '-old-asm' if $TargetPlatform =~ /^i386-/;
2087 #OLD: $target = '-m68k' if $TargetPlatform =~ /^m68k-/;
2088 #OLD: $target = '-mips' if $TargetPlatform =~ /^mips-/;
2089 #OLD: $target = '' if $TargetPlatform =~ /^powerpc-/;
2090 #OLD: $target = '-solaris' if $TargetPlatform =~ /^sparc-sun-solaris2/;
2091 #OLD: $target = '-sparc' if $TargetPlatform =~ /^sparc-sun-sunos4/;
2093 #OLD: if ( $target ne '' ) {
2094 #OLD: require("ghc-asm$target.prl")
2095 #OLD: || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm$target.prl!\n");
2096 #OLD: &mangle_asm($cc_as_o, "$cc_as-2"); # the OLD one!
2097 #OLD: &run_something("$Cmp -s $cc_as-2 $cc_as || $Diff $cc_as-2 $cc_as 1>&2 || exit 0",
2098 #OLD: "Diff'ing old and new mangled .s files"); # NB: to stderr
2101 } elsif ($TargetPlatform =~ /^hppa/) {
2102 # minor mangling of non-threaded files for hp-pa only
2103 require('ghc-asm.prl')
2104 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2105 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2107 } elsif ($TargetPlatform =~ /^powerpc|^rs6000/) {
2108 # minor mangling of non-threaded files for powerpcs and rs6000s
2109 require('ghc-asm.prl')
2110 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-powerpc.prl!\n");
2111 &mini_mangle_asm_powerpc($cc_as_o, $cc_as);
2112 } elsif ($TargetPlatform =~ /^i386/) {
2113 # extremely-minor OFFENSIVE mangling of non-threaded just one file
2114 require('ghc-asm.prl')
2115 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2116 &mini_mangle_asm_i386($cc_as_o, $cc_as);
2119 # save a copy of the .s file, even if we are carrying on...
2120 #if ($do_as && $Keep_s_file_too) {
2121 # &saveIntermediate($ifile_root , "s" , $cc_as);
2128 local($as_out, $ifile_root) = @_;
2130 local($asmblr) = ( $As ) ? $As : $CcRegd;
2132 if ( ! $SplitObjFiles ) {
2133 local($to_do) = "$asmblr -o $as_out -c @As_flags $cc_as";
2134 push(@Files_to_tidy, $as_out );
2135 &run_something($to_do, 'Unix assembler');
2137 } else { # more complicated split-ification...
2139 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2141 # If -odir is used, great, just pin it in front of the
2142 # generated split file names. If it hasn't been set, we
2143 # snatch it from the ifile_root.
2147 if ( $Specific_output_dir eq '' ) {
2148 $Specific_output_dir = ${ifile_root};
2151 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2152 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2153 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2154 push(@Files_to_tidy, $split_out );
2156 &run_something($to_do, 'Unix assembler');
2162 %************************************************************************
2164 \subsection[Driver-run-something]{@run_something@: Run a phase}
2166 %************************************************************************
2170 local($str_to_do, $tidy_name) = @_;
2172 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2173 print STDERR "$str_to_do\n" if $Verbose;
2175 if ($Using_dump_file) {
2176 open(DUMP, ">> $Specific_dump_file")
2177 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2178 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2180 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2183 local($return_val) = 0;
2185 if ( length($str_to_do) > 4000) {
2186 # 4000 - on the random side, just like the *real* ARG_MAX
2189 # With some shells, command lines of this length may
2190 # very well cause trouble. To safeguard against this, we squirrel the
2191 # command into a file and exec that.
2192 local ($sh) = $ENV{'REAL_SHELL'};
2193 print STDERR "Backup plan A: saving cmd line in ${Tmp_prefix}.sh and executing that with $sh\n" if $Verbose;
2194 open (TEMP, "> ${Tmp_prefix}.sh") ||
2195 &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.sh'\n");
2196 print TEMP "$Time $str_to_do\n";
2198 &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.sh'\n");
2199 system("$sh $Tmp_prefix.sh");
2202 unlink "${Tmp_prefix}.sh";
2204 system("$Time $str_to_do");
2208 if ( $PostprocessCcOutput ) { # hack, continued
2209 open(CCOUT, "< $Tmp_prefix.ccout")
2210 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2212 next if /attribute directive ignored/;
2213 next if /call-clobbered/;
2214 next if /from .*COptRegs\.lh/;
2215 next if /from .*(stg|rts)defs\.h:/;
2216 next if /from ghc\d+.c:\d+:/;
2217 next if /from .*\.lc/;
2218 next if /from .*SMinternal\.l?h/;
2219 next if /ANSI C does not support \`long long\'/;
2220 next if /warning:.*was declared \`extern\' and later \`static\'/;
2221 next if /warning: assignment discards \`const\' from pointer target type/;
2222 next if /: At top level:$/;
2223 next if /: In function \`.*\':$/;
2224 next if /\`ghc_cc_ID\' defined but not used/;
2227 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2230 if ($return_val != 0) {
2231 if ($Using_dump_file) {
2232 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2235 &tidy_up_and_die($return_val, '');
2237 $Using_dump_file = 0;
2241 %************************************************************************
2243 \subsection[Driver-ghc-timing]{Emit nofibbish GHC timings}
2245 %************************************************************************
2247 NB: nearly the same as in @runstdtest@ script.
2250 sub process_ghc_timings {
2251 local($StatsFile) = "$Tmp_prefix.stat";
2252 local($SysSpecificTiming) = 'ghc';
2254 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2255 local($max_live) = 0;
2256 local($tot_live) = 0; # for calculating residency stuff
2257 local($tot_samples) = 0;
2260 if (! /Minor/ && /^\s*\d+\s+\d+\s+(\d+)\s+\d+\.\d+\%/ ) {
2261 $max_live = $1 if $max_live < $1;
2265 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2267 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2268 $MaxResidency = $1; $ResidencySamples = $2;
2271 $GCs = $1 if /^\s*([0-9,]+) garbage collections? performed/;
2273 # The presence of -? in the following pattern is only there to
2274 # accommodate 0.29 && <= 2.05 RTS'
2275 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*-?(\d+\.\d\d)s elapsed\)/ ) {
2276 $InitTime = $1; $InitElapsed = $2;
2277 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2278 $MutTime = $1; $MutElapsed = $2;
2279 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2280 $GcTime = $1; $GcElapsed = $2;
2283 close(STATS) || die "Failed when closing $StatsFile\n";
2284 if ( $tot_samples > 0 ) {
2285 $ResidencySamples = $tot_samples;
2286 $MaxResidency = $max_live;
2287 $AvgResidency = int ($tot_live / $tot_samples) ;
2290 # warn about what we didn't find
2291 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2292 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2293 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2294 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2295 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2296 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2297 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2298 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2300 # things we didn't necessarily expect to find
2301 $MaxResidency = 0 unless defined($MaxResidency);
2302 $AvgResidency = 0 unless defined($AvgResidency);
2303 $ResidencySamples = 0 unless defined($ResidencySamples);
2306 $BytesAlloc =~ s/,//g;
2307 $MaxResidency =~ s/,//g;
2309 $InitTime =~ s/,//g;
2310 $InitElapsed =~ s/,//g;
2312 $MutElapsed =~ s/,//g;
2314 $GcElapsed =~ s/,//g;
2316 # print out what we found
2317 print STDERR "<<$SysSpecificTiming: ",
2318 "$BytesAlloc bytes, $GCs GCs, $AvgResidency/$MaxResidency avg/max bytes residency ($ResidencySamples samples), $InitTime INIT ($InitElapsed elapsed), $MutTime MUT ($MutElapsed elapsed), $GcTime GC ($GcElapsed elapsed)",
2319 " :$SysSpecificTiming>>\n";
2326 %************************************************************************
2328 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2330 %************************************************************************
2334 local($to_do) = "\n$Rm $Tmp_prefix*";
2335 if ( $Tmp_prefix !~ /^\s*$/ ) {
2336 print STDERR "$to_do\n" if $Verbose;
2341 sub tidy_up_and_die {
2342 local($return_val, $msg) = @_;
2344 # delete any files to tidy
2345 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2346 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2350 exit (($return_val == 0) ? 0 : 1);
2354 %************************************************************************
2356 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2358 %************************************************************************
2360 Some command-line arguments take an argument, e.g.,
2361 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2362 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2363 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2365 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2366 gobble the second argument (and probably set the heapsize to something
2370 local(*Args, $option, $rest_of_arg) = @_;
2372 if ($rest_of_arg ne '') {
2373 return($rest_of_arg);
2374 } elsif ($#Args >= 0) {
2375 local($temp) = $Args[0]; shift(@Args);
2378 print STDERR "$Pgm: no argument following $option option\n";
2389 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2391 foreach $f ( @HsC_antiflags ) {
2392 return(0) if $flag eq $f;
2394 # foreach $f ( @HsC_flags ) {
2395 # return(0) if $flag eq $f;
2400 sub squashHscFlag { # pretty terrible
2404 foreach $f ( @HsC_flags ) {
2405 if ($flag eq $f) { $f = ''; }
2413 foreach $f ( @flags ) {
2414 push( @HsC_flags, $f ) if &isntAntiFlag($f);
2419 Source files may have {-# OPTIONS ... #-} pragmas at the top, containing
2420 command line options we want to append to collection of commands specified
2421 directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell
2422 file for any such pragmas:
2425 sub check_for_source_options {
2426 local($file,$ifile) = @_;
2427 local($comment_start,$comment_end);
2429 if ($ifile =~ /\.hc$/ ||
2432 $ifile =~ /_s$/ ) { # `Real' C intermediate
2433 $comment_start = "/\\*";
2434 $comment_end = "\\*/";
2435 } else { # Assume it is a file containing Haskell source
2436 $comment_start = "{-#";
2437 $comment_end = "#-}";
2440 open(FILE,$file) || return(1); # No big loss
2443 if ( /^${comment_start} OPTIONS (.*)${comment_end}$/ ) {
2444 # add the options found at the back of the command line.
2445 local(@entries) = split(/\s+/,$1);
2446 print STDERR "Found OPTIONS " . join(' ',@entries) . " in $file\n" if $Verbose;
2447 push(@File_options, @entries);
2449 elsif ( /^$/ ) { # ignore empty lines
2452 elsif ( /^#line.+$/ ) { # ignore comment lines (unused..ToDo: rm )
2455 elsif ( /^{-# LINE.+$/ ) { # ignore line pragmas
2458 else { # stop looking, something non-empty / not
2459 # ${comment_start} OPTIONS .. ${comment_end} encountered.
2460 close(FILE);return(0);
2469 We split the initial argv up into three arrays:
2475 the reason for doing so is to be able to deal
2476 with {-# OPTIONS #-} pragma in source files properly.
2482 arg: while($_ = $args[0]) {
2484 # sigh, we have to deal with these -option arg specially here.
2485 /^-(tmpdir|odir|ohi|o|isuf|osuf|hisuf|hisuf-prelude|odump|syslib)$/ &&
2486 do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; };
2487 /^--?./ && do { push(@Cmd_opts, $_); next arg; };
2489 if (/\.([^_]+_)?[oa]$/) {
2490 push(@Link_file, $_);
2492 push(@Input_file, $_);
2495 # input files must exist:
2497 print STDERR "$Pgm: input file doesn't exist: $_\n";
2505 When saving an intermediate file (.hc or .s) away, we
2506 have to prefix any OPTIONS found in the original source file.
2509 sub saveIntermediate {
2510 local ($final,$suffix,$tmp)= @_ ;
2513 # $final -- root of where to park ${final}.${suffix}
2514 # $tmp -- temporary file where hsc put the intermediate file.
2516 # Delete the old file
2517 $to_do = "$Rm ${final}.${suffix}"; &run_something($to_do, "Removing old .${suffix} file");
2519 if ( $#File_options >= 0 ) { # OPTIONS found in Haskell source unit
2520 # Add OPTION comment to the top of the generated .${suffix} file
2521 open(TEMP, "> ${final}.${suffix}") || &tidy_up_and_die(1,"Can't open ${final}.${suffix}\n");
2522 print TEMP "/* OPTIONS " . join(' ',@File_options) . " */\n";
2524 print STDERR "Prepending OPTIONS: " . join(' ',@File_options) . " to ${final}.${suffix}\n" if $Verbose;
2526 $to_do = "$Cat $tmp >> ${final}.${suffix}";
2527 &run_something($to_do, "Saving copy of .${suffix} file");
2534 Command-line processor
2540 # can't use getopt(s); what we want is too complicated
2542 arg: while($_ = $Args[0]) {
2545 #---------- help -------------------------------------------------------
2546 if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; }
2548 #-----------version ----------------------------------------------------
2549 /^--version$/ && do { print STDERR "${PROJECTNAME}, version ${PROJECTVERSION}, patchlevel ${PROJECTPATCHLEVEL}\n"; exit $Status; };
2551 #---------- verbosity and such -----------------------------------------
2552 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
2554 #---------- what phases are to be run ----------------------------------
2555 /^-(no-)?recomp/ && do { $Do_recomp_chkr = ($1 eq '') ? 1 : 0; next arg; };
2557 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
2558 # change the global default:
2559 # we won't run cat; we'll run the real thing
2561 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
2563 # stop after generating C
2565 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
2566 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
2568 # leave out actual C generation (debugging) [also turns off interface gen]
2570 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
2571 # _do_ generate an interface; usually used as: -noC -hi
2573 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
2574 # don't generate an interface (even if generating C)
2576 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
2577 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
2578 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
2579 /^-keep-hi-diffs$/ && do { $Keep_HiDiffs = 1; next arg; };
2581 # show/disable diffs if the interface file changes
2583 /^-E$/ && do { push(@CcBoth_flags, '-E');
2584 $Only_preprocess_C = 1;
2585 $Do_as = 0; $Do_lnkr = 0; next arg; };
2586 # stop after preprocessing C
2587 /^-M$/ && do { $Only_generate_deps = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2588 # only generate dependency information.
2589 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
2590 # stop after generating assembler
2592 /^-c$/ && do { $Do_lnkr = 0; next arg; };
2593 # stop after generating .o files
2595 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
2596 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
2597 # don't do consistency-checking after a link
2599 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', '');
2600 $Tmp_prefix = "$Tmp_prefix/ghc$$";
2601 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
2603 # use an alternate directory for temp files
2605 #---------- redirect output --------------------------------------------
2607 # -o <file>; applies to the last phase, whatever it is
2608 # "-o -" sends it to stdout
2609 # if <file> has a directory component, that dir must already exist
2611 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', '');
2613 # Hack, of the worst sort: don't do validation of
2614 # odir argument if you're using -M (dependency generation).
2616 if ( ! $Only_generate_deps && ! -d $Specific_output_dir) {
2617 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
2622 /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', '');
2623 if ($Specific_output_file ne '-'
2624 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
2625 local($dir_part) = $1;
2626 if (! -d $dir_part) {
2627 print STDERR "$Pgm: no such directory: $dir_part\n";
2633 # NB: -isuf not documented yet (because it doesn't work yet)
2634 /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', '');
2635 if ($Isuffix =~ /\./ ) {
2636 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
2641 /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', '');
2642 if ($Osuffix =~ /\./ ) {
2643 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
2648 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
2649 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', '');
2650 if ($Specific_hi_file ne '-'
2651 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
2652 local($dir_part) = $1;
2653 if (! -d $dir_part) {
2654 print STDERR "$Pgm: no such directory: $dir_part\n";
2660 # The suffix to use when looking for interface files
2661 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', '');
2662 if ($HiSuffix =~ /\./ ) {
2663 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
2667 # ToDo: remove, not a `normal' user thing to do (should be automatic)
2668 /^-hisuf-prelude$/ && do { $HiSuffix_prelude = &grab_arg_arg(*Args,'-hisuf-prelude', '');
2669 if ($HiSuffix =~ /\./ ) {
2670 print STDERR "$Pgm: -hisuf-prelude suffix shouldn't contain a .\n";
2674 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', '');
2675 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
2676 local($dir_part) = $1;
2677 if (! -d $dir_part) {
2678 print STDERR "$Pgm: no such directory: $dir_part\n";
2684 #-------------- scc & Profiling Stuff ----------------------------------
2686 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
2689 # generate auto SCCs on top level bindings
2690 # -auto-all = all top level bindings
2691 # -auto = only top level exported bindings
2692 $PROFauto = ( /-all/ )
2693 ? '-fauto-sccs-on-all-toplevs'
2694 : '-fauto-sccs-on-exported-toplevs';
2697 /^-caf-all/ && do { # generate individual CAF SCC annotations
2698 $PROFcaf = '-fauto-sccs-on-individual-cafs';
2701 /^-ignore-scc$/ && do {
2702 # forces ignore of scc annotations even if profiling
2703 $PROFignore_scc = '-W';
2706 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
2709 /^-unprof-scc-auto/ && do {
2710 # generate auto SCCs on top level bindings when not profiling.
2711 # Used to measure optimisation effects of presence of sccs.
2712 $UNPROFscc_auto = ( /-all/ )
2713 ? '-fauto-sccs-on-all-toplevs'
2714 : '-fauto-sccs-on-exported-toplevs';
2717 #--------- ticky/concurrent/parallel -----------------------------------
2718 # we sort out the details a bit later on
2720 /^-concurrent$/ && do { $CONCURing = 'c'; next arg; }; # concurrent Haskell
2721 /^-gransim$/ && do { $GRANing = 'g'; next arg; }; # GranSim
2722 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
2723 /^-parallel$/ && do { $PARing = 'p'; next arg; }; # parallel Haskell
2725 #-------------- "user ways" --------------------------------------------
2727 (/^-user-setup-([a-oA-Z])$/ ) &&
2729 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
2731 local($stuff) = $UserSetupOpts{$BuildTag};
2732 local(@opts) = split(/\s+/, $stuff);
2734 # feed relevant ops into the arg-processing loop (if any)
2735 unshift(@Args, @opts) if $#opts >= 0;
2739 #---------- set search paths for libraries and things ------------------
2741 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
2742 # prepends the items to the list); -I is for including C .h files.
2744 /^-i$/ && do { @Import_dir = (); # import path cleared!
2745 @SysImport_dir = ();
2746 print STDERR "WARNING: import paths cleared by `-i'\n";
2749 /^-i(.*)/ && do { local(@new_items)
2750 = split( /:/, &grab_arg_arg(*Args,'-i', $1));
2751 unshift(@Import_dir, @new_items);
2754 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; };
2755 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; };
2756 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; };
2758 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1);
2759 print STDERR "$Pgm: no such system library (-syslib): $syslib\n",
2760 $Status++ unless $syslib =~ /^(hbc|ghc|posix|contrib)$/;
2764 # The posix library is a `special' in that it relies on
2765 # the ghc system library (packed strings). Wielding our
2766 # sledgehammer, the problem is solved by silently including
2767 # the ghc system library as well.
2768 # (ToDo: `nub' -syslib list)
2770 unshift(@SysImport_dir,
2772 ? "$InstSysLibDir/$syslib/imports"
2773 : "$TopPwd/hslibs/$syslib/src");
2775 push(@SysLibrary_dir,
2777 ? ("$InstSysLibDir")
2778 : ("$TopPwd/hslibs/$syslib"
2779 ,"$TopPwd/hslibs/$syslib/cbits"));
2781 push(@SysLibrary, "-lHS$syslib");
2782 push(@SysLibrary, "-lHS${syslib}_cbits")
2783 unless $syslib eq 'contrib'; #HACK! it has no cbits
2785 if ( $syslib eq 'posiz') {
2791 #=======================================================================
2792 # various flags that we can harmlessly send to one program or another
2793 # (we will later "reclaim" some of the compiler ones now sent to gcc)
2794 #=======================================================================
2796 #---------- this driver itself (ghc) -----------------------------------
2797 # these change what executable is run for each phase:
2798 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
2799 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
2800 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
2801 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
2802 /^-pgma(.*)$/ && do { $As = $1; next arg; };
2803 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
2804 /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; };
2806 #---------- the get-anything-through opts (all pgms) -------------------
2807 # these allow arbitrary option-strings to go to any phase:
2808 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
2809 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
2810 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
2811 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
2812 /^-optcpp(.*)$/ && do { push(@Cpp_define, $1); $Only_preprocess_hc = ($1 eq "-E"); next arg; };
2813 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
2814 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
2815 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
2816 /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; };
2818 #---------- Haskell C pre-processor (hscpp) ----------------------------
2819 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; };
2820 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; };
2822 /^-genSPECS/ && do { $Cpp_flag_set = 1;
2823 $genSPECS_flag = $_;
2826 #---------- post-Haskell "assembler"------------------------------------
2827 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
2828 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
2830 #---------- Haskell compiler (hsc) -------------------------------------
2832 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
2833 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
2835 /^-fhaskell-1\.3$/ && do { next arg; }; # a no-op right now
2837 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
2839 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
2840 # don't do stack checking using page fault `trick'.
2842 /^-fstack-check$/ && do { $StkChkByPageFaultOK = 0; next arg; };
2844 # have the compiler proper generate concurrent code,
2845 # really only used when you want to configure your own
2846 # special user compilation way. (Use -concurrent when
2847 # compiling `Concurrent Haskell' programs).
2849 # (ditto for -fgransim, fscc-profiling and -fticky-ticky)
2851 /^-fconcurrent$/ && do { push(@HsC_flags,$_); next arg; };
2852 /^-fscc-profiling$/ && do { push(@HsC_flags,$_); next arg; };
2853 /^-fticky-ticky$/ && do { push(@HsC_flags,$_); next arg; };
2854 /^-fgransim$/ && do { push(@HsC_flags,$_); next arg; };
2856 /^-split-objs/ && do {
2857 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|rs6000|sparc)-/ ) {
2859 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
2864 push(@HsC_flags, "-fglobalise-toplev-names");
2865 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
2867 require('ghc-split.prl')
2868 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
2873 && do { push(@HsC_flags, $_);
2874 push(@HsP_flags, '-N');
2876 # push(@HsC_flags, '-fshow-import-specs');
2880 /^-fspeciali[sz]e-unboxed$/
2881 && do { $Oopt_DoSpecialise = '-fspecialise';
2882 $Oopt_SpecialiseUnboxed = '-fspecialise-unboxed';
2885 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
2886 /^-fno-speciali[sz]e$/
2887 && do { $Oopt_DoSpecialise = ''; next arg; };
2890 # Now the foldr/build options, which are *on* by default (for -O).
2893 && do { $Oopt_FoldrBuild = 1;
2894 $Oopt_FB_Support = '-fdo-arity-expand';
2898 /^-fno-foldr-build$/
2899 && do { $Oopt_FoldrBuild = 0;
2900 $Oopt_FB_Support = '';
2903 /^-fno-foldr-build-rule$/
2904 && do { $Oopt_FoldrBuild = 0;
2907 /^-fno-enable-tech$/
2908 && do { $Oopt_FB_Support = '';
2911 /^-fno-snapback-to-append$/
2912 && do { $Oopt_FoldrBuildInline .= ' -fdo-not-fold-back-append ';
2915 # --------------- Renamer -------------
2918 /^-fno-prune-tydecls$/ && do { push(@HsC_flags, $_); next arg; };
2919 /^-fno-prune-instdecls$/ && do { push(@HsC_flags, $_); next arg; };
2923 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
2924 /^-fvia-[cC]$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
2928 /^(-funfolding-use-threshold)(.*)$/
2929 && do { $Oopt_UnfoldingUseThreshold = $1 . &grab_arg_arg(*Args,$1, $2);
2932 /^(-fmax-simplifier-iterations)(.*)$/
2933 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2);
2935 /^(-fshow-simplifier-progress)/
2936 && do { $Oopt_ShowSimplifierProgress = $1;
2939 /^-fno-pedantic-bottoms$/
2940 && do { $Oopt_PedanticBottoms = ''; next arg; };
2942 /^-fdo-monad-eta-expansion$/
2943 && do { $Oopt_MonadEtaExpansion = $_; next arg; };
2945 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
2946 && do { push(@HsC_flags, $_); next arg; };
2948 /^(-freturn-in-regs-threshold)(.*)$/
2949 && do { local($what) = $1;
2950 local($num) = &grab_arg_arg(*Args,$what, $2);
2951 if ($num < 2 || $num > 8) {
2952 die "Bad experimental flag: $_\n";
2954 $HscOut = '-C='; # force using C compiler
2955 push(@HsC_flags, "$what$num");
2956 push(@CcRegd_flags, "-D__STG_REGS_AVAIL__=$num");
2960 # --------------- Warnings etc. ------
2962 /^-fshow-import-specs/
2963 && do { push(@HsC_flags, $_); next arg; };
2965 /^-fwarn-(.*)$/ && do { push(@HsC_flags, $_); next arg; };
2967 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
2968 &squashHscFlag("-f$1");
2971 /^-W$/ && do { push(@HsC_flags, @MinusWOpts); next arg; };
2972 /^-Wall$/ && do { push(@HsC_flags, @MinusWallOpts); next arg; };
2973 /^-Wnot$/ && do { foreach (@Hsc_flags) {
2974 /^-fwarn-(.*)$/ && do { $_=''; };
2976 push(@HsC_antiflags, @StandardWarnings);
2979 # --------------- platform specific flags (for gcc mostly) ----------------
2981 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes,
2982 # for 2.6.x..?, does not apply for 2.7.2
2984 unshift(@CcBoth_flags, ( $_ ));
2987 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
2988 && do { # for GCC for SPARCs
2989 unshift(@CcBoth_flags, ( $_ ));
2992 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
2993 $StolenX86Regs = $1;
2996 #*************** ... and lots of debugging ones (form: -d* )
2998 # -d(no-)core-lint is done this way so it is turn-off-able.
2999 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
3000 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
3001 # Ditto for STG lint
3002 /^-dstg-lint/ && do { $StgLint = '-dstg-lint'; next arg; };
3003 /^-dno-stg-lint/ && do { $StgLint = ''; next arg; };
3005 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
3006 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
3007 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
3008 /^-dshow-rn-stats/ && do { push(@HsC_flags, $_); next arg; };
3009 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
3010 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
3011 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
3012 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
3014 #*************** ... and now all these -R* ones for its runtime system...
3016 /^-Rscale-sizes?(.*)/ && do {
3017 $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1);
3020 /^(-H|-Rmax-heapsize)(.*)/ && do {
3021 local($heap_size) = &grab_arg_arg(*Args,$1, $2);
3022 if ($heap_size =~ /(\d+)[Kk]$/) {
3023 $heap_size = $1 * 1000;
3024 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
3025 $heap_size = $1 * 1000 * 1000;
3026 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
3027 $heap_size = $1 * 1000 * 1000 * 1000;
3029 if ($heap_size <= 0) {
3030 print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n";
3031 $Specific_heap_size = 0;
3033 # if several heap sizes given, take the largest...
3034 } elsif ($heap_size >= $Specific_heap_size) {
3035 $Specific_heap_size = $heap_size;
3037 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n";
3041 /^(-K|Rmax-(stk|stack)size)(.*)/ && do {
3043 local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3);
3044 if ($stk_size =~ /(\d+)[Kk]$/) {
3045 $stk_size = $1 * 1000;
3046 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
3047 $stk_size = $1 * 1000 * 1000;
3048 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
3049 $stk_size = $1 * 1000 * 1000 * 1000;
3051 if ($stk_size <= 0) {
3052 print STDERR "$Pgm: resetting stack-size to zero!!! $stk_size\n";
3053 $Specific_stk_size = 0;
3055 # if several stack sizes given, take the largest...
3056 } elsif ($stk_size >= $Specific_stk_size) {
3057 $Specific_stk_size = $stk_size;
3059 print STDERR "$Pgm: ignoring stack-size-setting option ($flag $stk_size)...not the largest seen\n";
3063 /^-Rgc-stats$/ && do { $CollectingGCstats++;
3064 # the two RTSs do this diff ways; we will try to compensate
3067 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
3069 #---------- C high-level assembler (gcc) -------------------------------
3070 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
3072 # -dgcc-lint is a useful way of making GCC very fussy.
3073 # From alan@spri.levels.unisa.edu.au (Alan Modra).
3074 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
3075 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
3076 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
3078 # inject "#include <wurble>" into the compiler's C output!
3080 /^-#include(.*)/ && do {
3081 local($to_include) = &grab_arg_arg(*Args,'-#include', $1);
3082 push(@CcInjects, "#include $to_include\n");
3085 #---------- Linker (gcc, really) ---------------------------------------
3087 /^-static$/ && do { push(@Ld_flags, $_); next arg; };
3089 #---------- mixed cc and linker magic ----------------------------------
3090 # this optimisation stuff is finally sorted out later on...
3092 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
3094 /^-O[1-2]?$/ && do {
3095 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
3096 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
3098 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
3101 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
3103 /^-Ofile(.*)/ && do {
3105 local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1);
3106 @HsC_minusO3_flags = ();
3108 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
3111 s/\#.*//; # death to comments
3112 s/[ \t]+//g; # death to whitespace
3113 next if /^$/; # ditto, blank lines
3114 s/([()*{}])/\\$1/g; # protect shell metacharacters
3116 push(@CcBoth_flags, $1);
3118 push(@HsC_minusO3_flags, $_);
3124 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
3125 # in the consistency info
3129 #---------- linking .a file --------------------------------------------
3131 /^-Main(.*)/ && do {
3132 # specifies main or mainPrimIO to be linked
3136 #---------- catch unrecognized flags -----------------------------------
3139 print STDERR "$Pgm: unrecognised option: $_\n";
3145 } # end of processArgs