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 -C stop after generating C (.hc output)
50 -E stop after generating preprocessed C (.i 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 just calls upon the help of a
68 compatible mkdependHS script to do the
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 } # end of setupOptFlags
239 # Assign defaults to these right away.
243 Things to do with C compilers/etc:
245 $CcRegd = $GHC_OPT_HILEV_ASM;
246 @CcBoth_flags = ('-S'); # flags for *any* C compilation
250 # those for all files,
251 # those only for .c files;
252 # those only for .hc files
254 @CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__');
255 @CcRegd_flags_c = ();
256 @CcRegd_flags_hc = ();
258 $As = ''; # "assembler" is normally GCC
261 $Lnkr = ''; # "linker" is normally GCC
264 # 'nm' is used for consistency checking (ToDo: mk-world-ify)
265 # ToDo: check the OS or something ("alpha" is surely not the crucial question)
266 $Nm = ($TargetPlatform =~ /^alpha-/) ? 'nm -B' : 'nm';
269 What options \tr{-user-setup-a} turn into (user-defined ``packages''
270 of options). Note that a particular user-setup implies a particular
271 Prelude ({\em including} its interface file(s)).
273 $BuildTag = ''; # default is sequential build w/ Appel-style GC
275 %BuildDescr = (# system ways begin
276 '', 'normal sequential',
280 '_mc', "$WAY_mc_NAME",
281 '_mr', "$WAY_mr_NAME",
282 '_mt', "$WAY_mt_NAME",
283 '_mp', "$WAY_mp_NAME",
284 '_mg', "$WAY_mg_NAME",
285 '_2s', "$WAY_2s_NAME",
286 '_1s', "$WAY_1s_NAME",
287 '_du', "$WAY_du_NAME",
305 '_B', "$WAY_B_NAME" );
307 # these are options that are "fed back" through the option processing loop
311 '_a', "$WAY_a_HC_OPTS",
312 '_b', "$WAY_b_HC_OPTS",
313 '_c', "$WAY_c_HC_OPTS",
314 '_d', "$WAY_d_HC_OPTS",
315 '_e', "$WAY_e_HC_OPTS",
316 '_f', "$WAY_f_HC_OPTS",
317 '_g', "$WAY_g_HC_OPTS",
318 '_h', "$WAY_h_HC_OPTS",
319 '_i', "$WAY_i_HC_OPTS",
320 '_j', "$WAY_j_HC_OPTS",
321 '_k', "$WAY_k_HC_OPTS",
322 '_l', "$WAY_l_HC_OPTS",
323 '_m', "$WAY_m_HC_OPTS",
324 '_n', "$WAY_n_HC_OPTS",
325 '_o', "$WAY_o_HC_OPTS",
326 '_A', "$WAY_A_HC_OPTS",
327 '_B', "$WAY_B_HC_OPTS",
330 '_p', "$WAY_p_HC_OPTS",
331 '_t', "$WAY_t_HC_OPTS",
332 '_u', "$WAY_u_HC_OPTS",
333 '_mc', "$WAY_mc_HC_OPTS",
334 '_mr', "$WAY_mr_HC_OPTS",
335 '_mt', "$WAY_mt_HC_OPTS",
336 '_mp', "$WAY_mp_HC_OPTS",
337 '_mg', "$WAY_mg_HC_OPTS",
338 '_2s', "$WAY_2s_HC_OPTS",
339 '_1s', "$WAY_1s_HC_OPTS",
340 '_du', "$WAY_B_HC_OPTS" );
344 Import/include directories (\tr{-I} options) are sufficiently weird to
345 require special handling.
348 @Import_dir = ('.'); #-i things
349 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
351 # where to look for interface files (system hi's, i.e., prelude and hslibs)
352 @SysImport_dir = ( $INSTALLING )
353 ? ( "$InstLibDirGhc/imports" )
354 : ( "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/required"
355 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/ghc"
356 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/glaExts"
357 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent" );
359 # We need to look in ghc/ and glaExts/ when searching for implicitly needed .hi files, but
360 # we should really *not* look there for explicitly imported modules.
362 $GhcVersionInfo = int ($PROJECTVERSION * 100);
363 $Haskell1Version = 4; # i.e., Haskell 1.4
366 @UserLibrary_dir= (); #-L things;...
367 @UserLibrary = (); #-l things asked for by the user
369 @SysLibrary_dir = ( ( $INSTALLING ) #-syslib things supplied by the system
371 : ( "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR"
372 , "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/gmp"
373 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR"
374 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/cbits"
377 @SysLibrary = (); # will be built up as we go along
379 $TopClosureFile # defaults to 1.2 one; will be mangled later
380 = ( $INSTALLING) ? "$InstLibDirGhc/TopClosureXXXX.o"
381 : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/main/TopClosureXXXX.o";
383 # make depend for Haskell
385 = ( $INSTALLING ) ? "$InstBinDirGhc/mkdependHS"
386 : "$TopPwd/$CURRENT_DIR/$GHC_UTILS_DIR/mkdependHS/mkdependHS";
388 @MkDependHS_flags = ();
390 # do_link flag should not be reset while rescanning the cmd-line.
392 $Specific_output_dir = ''; # set by -odir <dir>
393 $Specific_output_file = ''; # set by -o <file>; "-" for stdout
396 Function to initialise the per-compilation-unit globals that
397 are used to guide and control the invocation of the different phases.
400 sub initDriverGlobals {
402 # reset the following options:
403 # RTS flags to use while compiling
405 @HsP_flags = (); # these are the flags destined solely for
406 # the flex/yacc parser
411 The optimisations/etc to be done by the compiler are {\em normally}
412 expressed with a \tr{-O} (or \tr{-O2}) flag, or by its absence.
415 $OptLevel = 0; # no -O == 0; -O == 1; -O2 == 2; -Ofile == 3
416 $MinusO2ForC = 0; # set to 1 if -O2 should be given to C compiler
417 $StolenX86Regs = 4; # **HACK*** of the very worst sort
421 @CcBoth_flags = ('-S'); # flags for *any* C compilation
424 # GCC flags: those for all files, those only for .c files; those only for .hc files
425 @CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__');
426 @CcRegd_flags_c = ();
427 @CcRegd_flags_hc = ();
429 @Import_dir = ('.'); #-i things
430 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
435 We are given a list of files with various presumably-known suffixes
436 (unknown-suffix files go straight to the linker). For each file, we
437 begin by assuming that we'll run every phase over it. However: (1)
438 global flags (\tr{-c}, \tr{-S}, etc.) tell us not to run any phase
439 past a certain point; and (2) the file's suffix tells us what phase to
440 start with. Linking is weird and kept track of separately.
442 Here are the initial defaults applied to all files:
444 $Cpp_flag_set = 0; # (hack)
445 $Only_preprocess_C = 0; # pretty hackish
446 $Only_generate_deps = 0; #
447 $PostprocessCcOutput = 0;
449 # native code-gen or via C?
450 $HaveNativeCodeGen = $GhcWithNativeCodeGen;
451 $HscOut = '-C='; # '-C=' ==> .hc output; '-S=' ==> .s output; '-N=' ==> neither
453 if $HaveNativeCodeGen && $TargetPlatform =~ /^(alpha|sparc)-/;
454 # TEMP: disable x86 if $HaveNativeCodeGen && $TargetPlatform =~ /^(i386|alpha|sparc)-/;
455 $ProduceHi = '-hifile=';
459 $CollectingGCstats = 0;
460 $CollectGhcTimings = 0;
461 $DEBUGging = ''; # -DDEBUG and all that it entails (um... not really)
462 $PROFing = ''; # set to p or e if profiling
463 $PROFgroup = ''; # set to group if an explicit -Ggroup specified
464 $PROFauto = ''; # set to relevant hsc flag if -auto or -auto-all
465 $PROFcaf = ''; # set to relevant hsc flag if -caf-all
466 $PROFignore_scc = ''; # set to relevant parser flag if explicit sccs ignored
467 $UNPROFscc_auto = ''; # set to relevant hsc flag if forcing auto sccs without profiling
468 $TICKYing = ''; # set to t if compiling for ticky-ticky profiling
469 $PARing = ''; # set to p if compiling for PAR
470 $CONCURing = ''; # set to c if compiling for CONCURRENT
471 $GRANing = ''; # set to g if compiling for GRAN
472 $StkChkByPageFaultOK = 1; # may be set to 0 (false) for some builds
473 $Specific_hi_file = ''; # set by -ohi <file>; "-" for stdout
474 $Specific_dump_file = ''; # set by -odump <file>; "-" for stdout
475 $Using_dump_file = 0;
477 $Osuffix = ''; # default: use the normal suffix for that kind of output
479 $HiSuffix_prelude = '';
480 $Do_recomp_chkr = 0; # don't use the recompilatio checker unless asked
481 $Do_cc = -1; # a MAGIC indeterminate value; will be set to 1 or 0.
484 $Keep_hc_file_too = 0;
485 $Keep_s_file_too = 0;
486 $UseGhcInternals = 0; # if 1, may use GHC* modules
489 $Dump_parser_output = 0;
491 $Dump_asm_splitting_info = 0;
492 $NoImplicitPrelude = 0;
495 } # end of initDriverGlobals (Sigh)
497 # we split the argv passed to the driver into three:
502 # and files to be linked...
508 # cmd line options prefixing the unit we're compiling
513 We inject consistency-checking information into \tr{.hc} files (both
514 when created by the Haskell compiler and when compiled by the C
515 compiler), so that we can check that an executable is made from
516 consistently-built pieces. (The check is normally done just after
517 linking.) The checking is done by introducing/munging
518 \tr{what(1)}-style strings. Anyway, here are the relevant global
519 variables and their defaults:
521 $LinkChk = 1; # set to 0 if the link check should *not* be done
523 # major & minor version numbers; major numbers must always agree;
524 # minor disagreements yield a warning.
525 $HsC_major_version = 33;
526 $HsC_minor_version = 0;
527 $Cc_major_version = 36;
528 $Cc_minor_version = 1;
530 # options: these must always agree
531 $HsC_consist_options = ''; # we record, in this order:
532 # Build tag; debugging?
533 $Cc_consist_options = ''; # we record, in this order:
534 # Build tag; debugging?
537 %************************************************************************
539 \section[Driver-parse-argv]{Munge the command-line options}
541 %************************************************************************
543 Now slurp through the arguments.
546 #---------- user defined prelude ---------------------------------------
548 if (grep(/^-user-prelude$/, @ARGV)) {
550 # If ARGV contains -user-prelude we are compiling a piece of
551 # prelude for the user, probably with additional specialise pragmas
553 # We strip out the -O -f and -user-prelude flags provided on
554 # the command line and add the ones used to compile the prelude
555 # ToDo: get these options from a common definition in mkworld
557 # We also enable any options forced through with -user-prelude-force
559 # Hey, Check out this grep statement ;-) (PS)
561 @ARGV = grep((!/^-O/ && !/^-f/ && !/^-user-prelude$/) || s/^-user-prelude-force//,
565 '-fcompiling-ghc-internals=???', # ToDo!!!!
567 '-fshow-pragma-name-errs',
568 '-fshow-import-specs',
574 print STDERR "ghc: -user-prelude options:\n", "@ARGV", "\n";
577 &initDriverGlobals();
578 &splitCmdLine(@ARGV);
579 # Run through the cmd-line first time.
580 &processArgs(@Cmd_opts);
582 # Check to see if driver is only in the business
583 # to generate dependencies
584 if ( $Status == 0 && $Only_generate_deps ) {
586 push (@MkDependHS_flags, "-o$Osuffix") if $Osuffix;
587 push (@MkDependHS_flags, "-s$BuildTag") if $BuildTag;
588 local($to_do) = "$MkDependHS @MkDependHS_flags -- @Cmd_opts -- @Input_file" ;
589 &run_something($to_do, 'Haskell dependencies');
593 # if there are several input files,
594 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
595 # (except if linking, of course)
597 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
598 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
599 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
600 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
601 print STDERR "\tPerhaps the -odir option will do what you want.\n";
606 # check for various pathological -o and -odir combinations...
607 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
608 if ($Specific_output_file eq '-') {
609 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
611 } else { # amalgamate...
612 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
613 # ToDo: check we haven't got a junk name now...
614 $Specific_output_dir = ''; # reset
618 # crash and burn if there were errors
620 print STDERR $ShortUsage;
625 %************************************************************************
627 \section[Driver-post-argv-mangling]{Setup after reading options}
629 %************************************************************************
631 %************************************************************************
633 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
635 %************************************************************************
637 We come now to the default ``wads of options'' that are turned on by
638 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
639 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
642 The user can also specify his/her own list of options in a file; in
643 that case, the work is already done (see stuff about @minusO3@,
646 GHC allows very precise control of what happens during a compilation.
647 Core-to-Core and STG-to-STG passes can be run in any order, as many
648 times as you like. Individual transformations can be turned on or
651 Sadly, however, there are some interdependencies \& Things You Must
652 Not Do. Here is the list.
656 \item[\tr{-fspecialise}:]
657 The specialiser must have dependency-analysed input; but if you run
658 the simplifier to do this, you must not let it toss away unused
659 bindings! (The typechecker conveys some specialisation info via
660 ``unused'' bindings...)
662 \item[\tr{-ffloat-inwards}:]
663 Floating inwards should be done before strictness analysis, because
664 the latter will give better results.
666 \item[\tr{-fstatic-args}:]
667 The static-arguments-transformation pass {\em must} have the
668 simplifier run right after it.
670 \item[\tr{-fcalc-inlinings[12]}:]
671 Not required, but there may be slight gains by re-simplifying after
672 this is done. (You could then \tr{-fcalc-inlinings} again, just for
675 \item[\tr{-ffull-laziness}:]
676 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
677 that's run. (Um, well, howzabout the simplifier just once more...)
682 \item[\tr{-fupdate-analysis}:]
683 It really really wants to be the last STG-to-STG pass that is run.
688 sub setupOptimiseFlags {
694 '-ffloat-lets-exposing-whnf',
695 '-ffloat-primops-ok',
697 # '-fdo-lambda-eta-expansion', # too complicated
699 # '-flet-to-case', # no strictness analysis, so...
700 $Oopt_PedanticBottoms,
701 # $Oopt_MonadEtaExpansion, # no thanks
703 # These two work fine, if you really want no simplification at all,
704 # for bizarre test reasons. But you get really terrible code if you use them,
705 # for example: let x = e in x
706 # with dozens of redundant thunks etc. So I'm leaving them out.
708 # '-fsimpl-uf-use-threshold0',
709 # '-fessential-unfoldings-only',
711 $Oopt_UnfoldingUseThreshold,
712 $Oopt_MaxSimplifierIterations,
715 # '-ffull-laziness', # removed 95/04 WDP following Andr\'e's lead
717 $Oopt_FinalStgProfilingMassage
720 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
722 '-fdo-eta-reduction',
724 # initial simplify: mk specialiser happy: minimum effort please
728 '-fkeep-spec-pragma-ids', # required before specialisation
730 # I don't understand why we want -fessential-unfoldings-only here
731 # If we have it, the following nasty thing happens:
735 # where "*" means exported.
736 # In the essential-unfoldings pass we still substitute f for g
737 # but we don't substitute E for f first. So we get
741 # The g=f will get reverse-substituted later, but it's untidy.
743 # '-fessential-unfoldings-only',
744 # '-fsimpl-uf-use-threshold0',
746 '-fmax-simplifier-iterations1',
747 $Oopt_PedanticBottoms,
750 ($Oopt_DoSpecialise) ? (
751 '-fspecialise-overloaded',
752 $Oopt_SpecialiseUnboxed,
756 '-fsimplify', # need dependency anal after specialiser ...
757 '\(', # need tossing before calc-inlinings ...
759 '-ffloat-lets-exposing-whnf',
760 '-ffloat-primops-ok',
764 # '-fdo-eta-reduction',
765 '-fdo-lambda-eta-expansion',
767 $Oopt_PedanticBottoms,
768 $Oopt_MonadEtaExpansion,
769 $Oopt_UnfoldingUseThreshold,
770 $Oopt_MaxSimplifierIterations,
773 #LATER: '-fcalc-inlinings1', -- pointless for 2.01
775 # ($Oopt_FoldrBuildWW) ? (
776 # '-ffoldr-build-ww-anal',
777 # '-ffoldr-build-worker-wrapper',
781 # '-ffloat-lets-exposing-whnf',
782 # '-ffloat-primops-ok',
786 # '-fdo-eta-reduction',
787 # '-fdo-lambda-eta-expansion',
789 # $Oopt_PedanticBottoms,
790 # $Oopt_MonadEtaExpansion,
791 # $Oopt_UnfoldingUseThreshold,
792 # $Oopt_MaxSimplifierIterations,
796 # this pass-ordering sequence was agreed by Simon and Andr\'e
797 # (WDP 94/07, 94/11).
800 ($Oopt_FoldrBuild) ? (
801 '-ffoldr-build-on', # desugar list comprehensions for foldr/build
805 '-fignore-inline-pragma', # **** NB!
806 '-fdo-foldr-build', # NB
808 '-ffloat-lets-exposing-whnf',
809 '-ffloat-primops-ok',
813 # '-fdo-eta-reduction',
814 '-fdo-lambda-eta-expansion', # After full laziness
816 $Oopt_PedanticBottoms,
817 $Oopt_MonadEtaExpansion,
818 $Oopt_UnfoldingUseThreshold,
819 $Oopt_MaxSimplifierIterations,
828 '-ffloat-lets-exposing-whnf',
829 '-ffloat-primops-ok',
833 '-fdo-eta-reduction',
834 '-fdo-lambda-eta-expansion',
836 ($Oopt_FoldrBuildInline),
837 # you need to inline foldr and build
838 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
839 # but do reductions if you see them!
840 $Oopt_PedanticBottoms,
841 $Oopt_MonadEtaExpansion,
842 $Oopt_UnfoldingUseThreshold,
843 $Oopt_MaxSimplifierIterations,
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,
868 # Case-liberation for -O2. This should be after
869 # strictness analysis and the simplification which follows it.
873 # : "-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 \\)" ),
875 # Final clean-up simplification:
880 '-ffloat-lets-exposing-whnf',
881 '-ffloat-primops-ok',
885 # '-fdo-eta-reduction',
886 '-fdo-lambda-eta-expansion',
889 '-fignore-inline-pragma', # **** NB!
890 $Oopt_FoldrBuildInline,
891 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
892 # but still do reductions if you see them!
893 $Oopt_PedanticBottoms,
894 $Oopt_MonadEtaExpansion,
895 $Oopt_UnfoldingUseThreshold,
896 $Oopt_MaxSimplifierIterations,
901 #LATER: '-fcalc-inlinings2', -- pointless for 2.01
906 $Oopt_FinalStgProfilingMassage,
912 # SPECIAL FLAGS for -O2
920 Sort out what we're going to do about optimising. First, the @hsc@
921 flags and regular @cc@ flags to worry about:
923 if ( $OptLevel <= 0 ) {
925 # for this level, we tell the parser -fignore-interface-pragmas
926 push(@HsC_flags, '-fignore-interface-pragmas');
927 # and tell the compiler not to produce them
928 push(@HsC_flags, '-fomit-interface-pragmas');
930 &add_Hsc_flags( @HsC_minusNoO_flags );
931 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
933 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
935 &add_Hsc_flags( @HsC_minusO_flags );
936 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
937 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
938 # but it *is* useful in compiling the garbage collectors (so said
939 # Patrick many moons ago...).
941 } else { # -Ofile, then...
943 &add_Hsc_flags( @HsC_minusO3_flags );
944 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
947 } # setupOptimiseFlags
951 %************************************************************************
953 \subsection{Check for consistency, etc.}
955 %************************************************************************
957 Sort out @$BuildTag@, @$PROFing@, @$CONCURing@, @$PARing@,
958 @$GRANing@, @$TICKYing@:
960 sub setupBuildFlags {
963 # PROFILING stuff after argv mangling:
965 # warn about any scc exprs found (in case scc used as identifier)
966 push(@HsP_flags, '-W');
968 # add -auto sccs even if not profiling !
969 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
972 push(@HsC_flags, $PROFauto) if $PROFauto;
973 push(@HsC_flags, $PROFcaf) if $PROFcaf;
974 #push(@HsC_flags, $PROFdict) if $PROFdict;
976 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
978 push(@HsP_flags, (($PROFignore_scc) ? $PROFignore_scc : '-S'));
980 if ( $SplitObjFiles ) {
981 # can't split with cost centres -- would need global and externs
982 print STDERR "$Pgm: WARNING: splitting objects when profiling will *BREAK* if any _scc_s are present!\n";
983 # (but it's fine if there aren't any _scc_s around...)
984 # $SplitObjFiles = 0; # unset
985 #not an error: for now: $Status++;
988 #if ( $BuildTag ne '' ) {
989 # local($b) = $BuildDescr{$BuildTag};
990 # if ($CONCURing eq 'c') { print STDERR "$Pgm: Can't mix $b with -concurrent.\n"; exit 1; }
991 # if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
992 # if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
993 # if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
995 # # ok to have a user-way profiling build
996 # # eval the profiling opts ... but leave user-way BuildTag
997 # if ($PROFing eq 'p') { &processArgs(split(' ', $SetupOpts{'_p'})); } # eval($EvaldSetupOpts{'_p'}); }
999 if ( $PROFing eq 'p' ) {
1000 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
1001 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
1002 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
1003 $BuildTag = ($CONCURing eq 'c') ? '_mr' : '_p' ; # possibly "profiled concurrent"...
1005 } elsif ( $CONCURing eq 'c' ) {
1006 if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix -concurrent with -parallel.\n"; exit 1; }
1007 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -concurrent with -gransim.\n"; exit 1; }
1008 $BuildTag = ($TICKYing eq 't') ? '_mt' : '_mc' ; # possibly "ticky concurrent"...
1009 # "profiled concurrent" already acct'd for...
1011 } elsif ( $PARing eq 'p' ) {
1012 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
1013 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
1016 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
1017 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
1021 } elsif ( $GRANing eq 'g' ) {
1022 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
1025 } elsif ( $TICKYing eq 't' ) {
1031 After the sanity checks, add flags to the necessary parts of the driver pipeline:
1034 if ( $BuildTag ne '' ) { # something other than normal sequential...
1036 local($Tag) = "${BuildTag}";
1037 $Tag =~ s/_//; # move the underscore to the back
1039 $HscOut = '-C='; # must go via C
1040 &processArgs(split(' ', $SetupOpts{$BuildTag}));
1041 # eval($EvaldSetupOpts{$BuildTag});
1045 Decide what the consistency-checking options are in force for this run:
1048 $HsC_consist_options = "${BuildTag},${DEBUGging}";
1049 $Cc_consist_options = "${BuildTag},${DEBUGging}";
1052 # Funny place to put it, but why not.
1054 if ( $HiSuffix_prelude eq '' ) {
1055 local($Tag) = "${BuildTag}";
1057 $Tag = "${Tag}_" if $Tag ne '';
1058 $HiSuffix_prelude="${Tag}hi";
1060 #push(@HsC_flags, "-hisuf-prelude=.${HiSuffix_prelude}"); # use appropriate Prelude .hi files
1061 #push(@HsC_flags, "-hisuf=.${HiSuffix}");
1066 %************************************************************************
1068 \subsection{Add on machine-specific C-compiler flags}
1070 %************************************************************************
1072 Shove on magical machine-specific options. We use \tr{unshift} to
1073 stick them on the {\em front} of the arrays, so that ``later''
1074 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
1076 Note: a few ``always apply'' flags were set at the very beginning.
1081 if ($TargetPlatform =~ /^alpha-/) {
1082 # we know how to *mangle* asm for alpha
1083 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1084 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1085 unshift(@CcBoth_flags, ('-static'));
1087 } elsif ($TargetPlatform =~ /^hppa/) {
1088 # we know how to *mangle* asm for hppa
1089 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1090 unshift(@CcBoth_flags, ('-static'));
1092 # We don't put in '-mlong-calls', because it's only
1093 # needed for very big modules (sigh), and we don't want
1094 # to hobble ourselves further on all the other modules
1097 # [Dated comment (gcc-2.6.x?), -mlong-calls is no longer
1098 # a supported gcc HPPA flag]
1099 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
1100 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
1101 # (very nice, but too bad the HP /usr/include files don't agree.)
1103 } elsif ($TargetPlatform =~ /^i386-/) {
1104 # we know how to *mangle* asm for X86
1105 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1106 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK && $TargetPlatform !~ /nextstep/;
1107 # I do not know how to do STACK_CHECK_BY_PAGE_FAULT
1108 # on NeXTs (my fault, not theirs), so I don't.
1111 # -fno-defer-pop : basically the same game as for m68k
1113 # -fomit-frame-pointer : *must* ; because we're stealing
1114 # the fp (%ebp) for our register maps. *All* register
1115 # maps (in MachRegs.lh) must steal it.
1117 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1118 unshift(@CcRegd_flags, '-fomit-frame-pointer');
1119 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1121 } elsif ($TargetPlatform =~ /^m68k-/) {
1122 # we know how to *mangle* asm for m68k
1123 unshift (@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1124 unshift (@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK && $TargetPlatform !~ /nextstep/;
1125 # I do not know how to do STACK_CHECK_BY_PAGE_FAULT
1126 # on NeXTs (my fault, not theirs), so I don't.
1129 # -fno-defer-pop : for the .hc files, we want all the pushing/
1130 # popping of args to routines to be explicit; if we let things
1131 # be deferred 'til after an STGJUMP, imminent death is certain!
1133 # -fomit-frame-pointer : *don't*
1134 # It's better to have a6 completely tied up being a frame pointer
1135 # rather than let GCC pick random things to do with it.
1136 # (If we want to steal a6, then we would try to do things
1137 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1139 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1140 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1141 # maybe gives reg alloc a better time
1142 # also: -fno-defer-pop is not sufficiently well-behaved without it
1144 } elsif ($TargetPlatform =~ /^mips-/) {
1145 # we (hope to) know how to *mangle* asm for MIPSen
1146 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1147 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1148 unshift(@CcBoth_flags, ('-static'));
1150 } elsif ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1151 # we know how to *mangle* asm for PowerPC
1152 # :-( unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1153 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1154 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1155 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1156 } elsif ($TargetPlatform =~ /^sparc-/) {
1157 # we know how to *mangle* asm for SPARC
1158 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1159 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1162 } # end of setupMachOpts
1165 Same unshifting magic, but for special linker flags.
1167 The configure script determines whether the object file symbol tables
1168 have a leading underscore, and sets @LeadingUnderscore@ accordingly.
1169 (The driver script `sees' the setting of the @LeadingUnderscore@
1170 by having the Makefile prepend it).
1174 local($uscore) = ( ${LeadingUnderscore} eq 'YES' ) ? '_' : '';
1177 (($Ld_main) ? ( '-u', "${uscore}Main_" . $Ld_main . '_closure' ) : ()));
1179 ( '-u', "${uscore}PrelBase_Z91Z93_closure" # i.e., []
1180 ,'-u', "${uscore}PrelBase_IZh_static_info"
1181 ,'-u', "${uscore}PrelBase_CZh_static_info"
1182 ,'-u', "${uscore}PrelBase_False_inregs_info"
1183 ,'-u', "${uscore}PrelBase_True_inregs_info"
1184 ,'-u', "${uscore}STBase_SZh_static_info"
1185 ,'-u', "${uscore}DEBUG_REGS"
1187 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1188 # sometimes we have lots of toc entries...
1189 # unshift(@Ld_flags, ('-Xlinker -bbigtoc -Xlinker -bnoquiet'));
1190 unshift(@Ld_flags, ('-Xlinker -bbigtoc'));
1193 } # end of setupLinkOpts
1197 %************************************************************************
1199 \subsection{Set up include paths and system-library enslurpment}
1201 %************************************************************************
1203 Now that we know what garbage-collector, etc., are required, we can
1204 finalise our list of libraries to slurp through, and generally Get
1209 # default includes must be added AFTER option processing
1210 if ( ! $INSTALLING ) {
1211 push (@Include_dir, "$TopPwd/${CURRENT_DIR}/${GHC_INCLUDE_DIR}");
1213 push (@Include_dir, "$InstLibDirGhc/includes");
1214 push (@Include_dir, "$InstLibDirGhc/includes");
1216 } # end of setupIncPaths
1221 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1224 foreach $f (@SysLibrary) {
1225 next if $f =~ /_cbits/;
1226 $f .= $BuildTag if $f =~ /^-lHS/;
1229 # fiddle the TopClosure file name...
1230 $TopClosureFile =~ s/XXXX//;
1232 # Push library HSrts, plus boring clib bit
1233 push(@SysLibrary, "-lHSrts${BuildTag}");
1234 push(@SysLibrary, '-lHSclib');
1236 # RTS compiled with cygwin32, uses the WinMM API
1237 # to implement the itimers, since cygwin.dll does not
1238 # support it. Only reqd. for `ways' that use itimers.
1240 push(@SysLibrary, '-lwinmm') if $BuildTag ne '' && $TargetPlatform eq 'i386-unknown-cygwin32';
1242 # Push the pvm libraries
1243 if ($BuildTag eq '_mp') {
1244 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1245 push(@SysLibrary, "-L$pvmlib", '-lpvm3', '-lgpvm3');
1246 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1247 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1248 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1249 push(@SysLibrary, '-lsocket', '-lnsl');
1253 # Push the GNU multi-precision arith lib; and the math library
1254 push(@SysLibrary, '-lgmp');
1255 push(@SysLibrary, '-lm');
1258 %************************************************************************
1260 \subsection{Check that this system was built to do what we are asking}
1262 %************************************************************************
1264 Before continuing we check that the appropriate build is available.
1267 #die "$Pgm: no BuildAvail?? $BuildTag\n" if $BuildDescr{$BuildTag} eq '' ; # sanity
1269 if ( $BuildDescr{$BuildTag} eq '' ) {
1270 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1271 "' \"build\" is not available with your GHC setup.\n";
1272 print STDERR "(It was not configured for it at your site.)\n";
1273 print STDERR $ShortUsage;
1277 } # end of setupSyslibs
1281 %************************************************************************
1283 \subsection{Final miscellaneous setup bits before we start going}
1285 %************************************************************************
1287 Record largest specific heapsize, if any.
1289 sub setupHeapStackSize {
1290 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1291 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1292 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1293 push(@HsC_rts_flags, "-K$Specific_stk_size");
1297 If no input or link files seen, then we let 'em feed in stdin; this is
1298 mainly for debugging.
1302 if ($#Input_file < 0 && $#Link_file < 0) {
1303 @Input_file = ( '-' );
1305 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1306 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n";
1307 while (<>) { print INF $_; }
1308 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1313 Tell the world who we are, if they asked.
1315 print STDERR "${PROJECTNAME}, version ${PROJECTVERSION}, patchlevel ${PROJECTPATCHLEVEL}\n"
1319 %************************************************************************
1321 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1323 %************************************************************************
1325 Process the input files; don't continue with linking if there are
1326 problems (global variable @$Status@ non-zero).
1328 foreach $ifile (@Input_file) {
1329 &ProcessInputFile($ifile);
1332 if ( $Status > 0 ) { # don't link if there were errors...
1333 print STDERR $ShortUsage;
1338 # append last minute flags linker and consistency flags
1345 Link if appropriate.
1348 local($libdirs) = '';
1350 # glue them together:
1351 push(@UserLibrary_dir, @SysLibrary_dir);
1353 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1355 # for a linker, use an explicitly given one, or the going C compiler ...
1356 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1358 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1359 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1361 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $TopClosureFile $libdirs @UserLibrary @SysLibrary";
1362 &run_something($to_do, 'Linker');
1364 # finally, check the consistency info in the binary
1365 local($executable) = $Files_to_tidy[0];
1366 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1369 # dynamically load consistency-chking code; then do it.
1370 require('ghc-consist.prl')
1371 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1373 &chk_consistency_info ( $executable );
1376 # if PVM parallel stuff, we do truly weird things.
1377 # Essentially: (1) move the executable over to where PVM expects
1378 # to find it. (2) create a script in place of the executable
1379 # which will cause the program to be run, via SysMan.
1380 if ( $PARing eq 'p' ) {
1381 local($pvm_executable) = $executable;
1382 local($pvm_executable_base);
1384 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1385 local($pwd) = `pwd`;
1387 $pwd =~ s/^\/tmp_mnt//;
1388 $pvm_executable = "$pwd/$pvm_executable";
1391 $pvm_executable =~ s|/|=|g; # make /s into =s
1392 $pvm_executable_base = $pvm_executable;
1394 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1395 . "/$pvm_executable";
1397 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1399 # OK, now create the magic script for "$executable"
1400 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1401 print EXEC <<EOSCRIPT1;
1402 eval 'exec perl -S \$0 \${1+"\$@"}'
1403 if \$running_under_some_shell;
1404 # =!=!=!=!=!=!=!=!=!=!=!
1405 # This script is automatically generated: DO NOT EDIT!!!
1406 # Generated by Glasgow Haskell, version ${PROJECTVERSION} ${PROJECTPATCHLEVEL}
1408 \$pvm_executable = '$pvm_executable';
1409 \$pvm_executable_base = '$pvm_executable_base';
1410 \$SysMan = '$SysMan';
1413 print EXEC <<\EOSCRIPT2;
1414 # first, some magical shortcuts to run "commands" on the binary
1416 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1418 system("$cmd $pvm_executable");
1422 # OK, really run it; process the args first
1423 $ENV{'PE'} = $pvm_executable_base;
1425 $nprocessors = 2; # the default
1429 # ToDo: handle --RTS
1430 args: while ($a = shift(@ARGV)) {
1431 if ( $a eq '+RTS' ) {
1433 } elsif ( $a eq '-RTS' ) {
1436 if ( $a eq '-d' && $in_RTS_args ) {
1438 } elsif ( $a =~ /^-N(\d+)/ && $in_RTS_args ) {
1441 push(@nonPVM_args, $a);
1445 local($return_val) = 0;
1446 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
1448 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
1451 close(EXEC) || die "Failed closing $executable\n";
1452 chmod 0755, $executable;
1456 # that... that's all, folks!
1458 exit $Status; # will still be 0 if all went well
1461 %************************************************************************
1463 \section[Driver-do-one-file]{How to process a single input file}
1465 %************************************************************************
1468 sub ProcessInputFile {
1469 local($ifile) = @_; # input file name
1470 local($ifile_root); # root of or basename of input file
1471 local($ofile_target); # ultimate output file we hope to produce
1472 # from input file (need to know for recomp
1473 # checking purposes)
1474 local($hifile_target);# ditto (but .hi file)
1477 Handle the weirdity of input from stdin.
1479 if ($ifile ne '-') {
1480 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1481 $ofile_target = # may be reset later...
1482 ($Specific_output_file ne '' && ! $Do_lnkr)
1483 ? $Specific_output_file
1484 : &odir_ify($ifile_root, 'o');
1485 $hifile_target= ($Specific_hi_file ne '')
1487 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1488 # NB: may change if $ifile_root isn't module name (??)
1490 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1491 $ifile_root = '_stdin';
1492 $ofile_target = '_stdout'; # gratuitous?
1493 $hifile_target= '_stdout'; # ditto?
1497 We need to decide what phases of the compilation system we will run
1498 over this file. The defaults are the ones established when processing
1499 flags. (That established what the last phase run for all files is.)
1501 We do the pre-recompilation-checker phases here; the rest later.
1505 Look at the suffix and decide what initial phases of compilation may
1506 be dropped off for this file. Also the rather boring business of
1507 which files are coming-in/going-out.
1509 Again, we'll do the post-recompilation-checker parts of this later.
1511 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1512 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1515 # names of the files to stuff between phases
1516 # defaults are temporaries
1517 local($in_lit2pgm) = $ifile;
1518 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1519 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1520 local($hsc_hi) = "$Tmp_prefix.hi";
1521 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1522 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1523 local($as_out) = $ofile_target;
1525 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
1527 # OK, let's strip off some literate junk..
1528 if ($ifile =~ /\.lhs$/) {
1529 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
1531 $lit2pgm_hscpp = $ifile;
1537 # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas
1538 &check_for_source_options($lit2pgm_hscpp,$ifile);
1539 # options found in the source file take a back seat, i.e., we scan
1540 # them first. Only process the command line again if source file
1541 # contained anything of interest *or* there's more than one
1542 # input file (we have to reset the options).
1544 if ( $#Input_file >= 0 || $#File_options >= 0) {
1545 #@File_options = (@File_options, @Cmd_opts);
1547 # Now process the command line
1548 &initDriverGlobals();
1549 &processArgs((@File_options,@Cmd_opts));
1550 print STDERR "\nEffective command line: " .
1551 join(' ',(@File_options,@Cmd_opts)) . "\n" if $Verbose;
1554 # Having got the effective command line scanned, set up
1555 # the various options in prep for some real work.
1557 # check the sanity of the BuildTag we're about to use,
1558 # and if needs be, add some more flags and setup to
1559 # the different phases.
1562 &setupOptimiseFlags();
1565 &setupHeapStackSize();
1568 # These two variables need to be set after the
1569 # command-line has been processed and the build options
1570 # have be seen set up. This is because command-line options
1571 # can control whether to compile vias C or not.
1573 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1575 : ( ($HscOut eq '-C=') ? 1 : 0 );
1576 local($do_as) = $Do_as;
1577 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1579 if ($ifile =~ /.lhs$/ || $ifile =~ /.hs$/ ) {
1581 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
1582 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1584 } elsif ($ifile =~ /\.c$/) {
1585 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1586 $hsc_out = $ifile; $is_hc_file = 0;
1587 } elsif ($ifile =~ /\.s$/) {
1588 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
1590 } else { # don't know what it is, but nothing to do herein...
1591 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
1594 # hack to avoid running hscpp
1595 $HsCpp = $Cat if ! $Cpp_flag_set;
1597 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc)
1601 We now think about whether to run hsc/cc or not (when hsc produces .s
1602 stuff, it effectively takes the place of both phases).
1604 To get the output file name right: for each phase that we are {\em
1605 not} going to run, set its input (i.e., the output of its preceding
1606 phase) to @"$ifile_root.<suffix>"@.
1608 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
1611 # Warning issued if -keep-hc-file-too is used without
1612 # -fvia-C (or the equivalent)
1614 if ( $HscOut ne '-C=' && $Keep_hc_file_too ) {
1615 print STDERR "$Pgm: warning: Native code generator to be used, -keep-hc-file-too will be ignored\n";
1618 if (! $do_cc && ! $do_as) { # stopping after hsc
1619 $hsc_out = ($Specific_output_file ne '')
1620 ? $Specific_output_file
1621 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
1623 $ofile_target = $hsc_out; # reset
1626 if (! $do_as) { # stopping after gcc (or hsc)
1627 $cc_as = ($Specific_output_file ne '')
1628 ? $Specific_output_file
1629 : &odir_ify($ifile_root, ( $Only_preprocess_C ) ? 'i' : 's');
1631 $ofile_target = $cc_as; # reset
1637 Now the Haskell compiler, C compiler, and assembler
1641 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
1642 $ofile_target, $hifile_target);
1646 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
1647 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root);
1650 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
1652 # save a copy of the .s file..
1653 &saveIntermediate($ifile_root , "s" , $cc_as) if ($do_as && $Keep_s_file_too);
1654 &runAs($as_out, $ifile_root) if $do_as;
1657 Finally, decide what to queue up for linker input.
1659 # tentatively assume we will eventually produce linker input:
1660 push(@Link_file, &odir_ify($ifile_root, 'o'));
1662 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
1664 if ( $ifile !~ /\.(lhs|hs|hc|c|s)$/ && $ifile !~ /_hc$/ ) {
1665 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n"
1666 if $ifile !~ /\.a$/;
1668 # oops; we tentatively pushed the wrong thing; fix & do the right thing
1669 pop(@Link_file); push(@Link_file, $ifile);
1673 } # end of ProcessInputFile
1676 %************************************************************************
1678 \section[Driver-run-phases]{Routines to run the various phases}
1680 %************************************************************************
1684 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
1686 local($to_do) = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && ".
1687 "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
1688 @Files_to_tidy = ( $lit2pgm_hscpp );
1690 &run_something($to_do, 'literate pre-processor');
1696 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
1700 if ($HsCpp eq $Cat) {
1701 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $hscpp_hsc && ".
1702 "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
1703 @Files_to_tidy = ( $hscpp_hsc );
1704 &run_something($to_do, 'Ineffective C pre-processor');
1706 local($includes) = '-I' . join(' -I',@Include_dir);
1707 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $hscpp_hsc && ".
1708 "$HsCpp $Verbose $genSPECS_flag @HsCpp_flags -D__HASKELL1__=$Haskell1Version -D__GLASGOW_HASKELL__=$GhcVersionInfo $includes $lit2pgm_hscpp >> $hscpp_hsc";
1709 @Files_to_tidy = ( $hscpp_hsc );
1710 &run_something($to_do, 'Haskellised C pre-processor');
1717 sub runHscAndProcessInterfaces {
1718 local($ifile, $hscpp_hsc, $ifile_root, $ofile_target, $hifile_target) = @_;
1720 # $ifile is the original input file
1721 # $hscpp_hsc post-unlit, post-cpp, etc., input file
1722 # $ifile_root input filename minus suffix
1723 # $ofile_target the output file that we ultimately hope to produce
1724 # $hifile_target the .hi file ... (ditto)
1726 local($source_unchanged) = 1;
1728 # Check if the source file is up to date relative to the target; in
1729 # that case we say "source is unchanged" and let the compiler bail out
1730 # early if the import usage information allows it.
1732 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
1733 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
1735 # The informational messages below are now conditional on -v being set -- SOF
1736 if ( ! -f $ofile_target ) {
1737 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n" if $Verbose;
1738 $source_unchanged = 0;
1741 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
1742 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
1744 if ( ! -f $hifile_target ) {
1745 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n" if $Verbose;
1746 $source_unchanged = 0;
1749 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
1750 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
1752 if ($i_mtime > $o_mtime) {
1753 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n" if $Verbose;
1754 $source_unchanged = 0;
1757 # So if source_unchanged is still "1", we pass on the good news to the compiler
1758 # The -recomp flag can disable this, forcing recompilation
1759 if ($Do_recomp_chkr && $source_unchanged) {
1760 push(@HsC_flags, '-fsource-unchanged');
1765 &runHsc($ifile_root, $hsc_out, $hsc_hi, $going_interactive);
1767 # See if it bailed out early, saying nothing needed doing.
1768 # We work this out by seeing if it created an output .hi file
1770 if ( ! -f $hsc_hi && $ProduceHi !~ /-nohifile=/ ) {
1771 # Doesn't exist, so we bailed out early.
1772 # Tell the C compiler and assembler not to run
1773 $do_cc = 0; $do_as = 0;
1775 # Update dependency info, touch both object file and
1776 # interface file, so that the following invariant is
1779 # a dependent module's interface file should after recompilation
1780 # checking be newer than the interface files of its imports.
1782 # That is, if module A's interface file changes, then module B
1783 # (which import from A) needs to be checked.
1784 # If A's change does not affect B, which causes the compiler to bail
1785 # out early, we still need to touch the interface file of B. The reason
1786 # for this is that B may export A's interface.
1788 &run_something("touch $ofile_target",
1789 "Touch $ofile_target, to propagate dependencies") if $HscOut ne '-N=';
1790 &run_something("touch $hifile_target",
1791 "Touch $hifile_target, to propagate dependencies") if $ProduceHi =~ /-nohifile=/ ;
1795 # Didn't bail out early (new .hi file) so we thunder on
1797 # If non-interactive, heave in the consistency info at the end
1798 # NB: pretty hackish (depends on how $output is set)
1799 if ( ! $going_interactive ) {
1800 if ( $HscOut eq '-C=' ) {
1801 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
1803 } elsif ( $HscOut eq '-S=' ) {
1804 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
1805 $consist =~ s/,/./g;
1806 $consist =~ s/\//./g;
1807 $consist =~ s/-/_/g;
1808 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
1809 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
1811 &run_something($to_do, 'Pin on Haskell consistency info');
1815 # Interface-handling is important enough to live off by itself
1816 if ( $ProduceHi !~ /-nohifile=/ ) { # If we've produced one, process it.
1817 require('ghc-iface.prl') || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
1818 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
1820 # if we're going to split up object files,
1821 # we inject split markers into the .hc file now
1822 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
1823 &inject_split_markers ( $hsc_out );
1826 # save a copy of the .hc file, even if we are carrying on...
1827 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
1828 &saveIntermediate($ifile_root , "hc" , $hsc_out);
1838 local($ifile_root, $hsc_out, $hsc_hi, $going_interactive) = @_;
1840 # prepend comma to HsP flags (so hsc can tell them apart...)
1841 foreach $a ( @HsP_flags ) { $a = ",$a" unless $a =~ /^,/; }
1843 &makeHiMap() unless $HiMapDone;
1844 #print STDERR "HiIncludes: $HiIncludeString\n";
1845 push(@HsC_flags, "-himap=$HiIncludeString");
1847 # here, we may produce .hc/.s and/or .hi files
1848 local($output) = '';
1849 @Files_to_tidy = ();
1851 if ( $going_interactive ) {
1852 # don't need .hi unless going to show it on stdout:
1853 $ProduceHi = '-nohifile=' if ! $HiOnStdout;
1854 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
1857 # set up for producing output/.hi; note that flag twiddling
1858 # may mean that nothing will actually be produced:
1859 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out";
1860 @Files_to_tidy = ( $hsc_hi, $hsc_out );
1862 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
1863 if ( $CollectingGCstats ) {
1864 push(@HsC_rts_flags, "-S$ifile_root.stat");
1865 push(@Files_to_tidy, "$ifile_root.stat");
1868 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
1869 # emit nofibbish time/bytes-alloc stats to stderr;
1870 # see later .stat file post-processing
1871 push(@HsC_rts_flags, "-s$Tmp_prefix.stat");
1872 push(@Files_to_tidy, "$Tmp_prefix.stat");
1876 if ($Specific_dump_file ne '') {
1877 $dump = "2>> $Specific_dump_file";
1878 $Using_dump_file = 1;
1882 $to_do = "$HsC @HsP_flags ,$hscpp_hsc $dump @HsC_flags $CoreLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
1883 &run_something($to_do, 'Haskell compiler');
1885 # finish business w/ nofibbish time/bytes-alloc stats
1886 &process_ghc_timings() if $CollectGhcTimings;
1890 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
1891 of (module-name, pathname) pairs, one per line, separated by a space.
1894 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1898 # collect in %HiMap; write later; also used elsewhere in driver
1900 local($mod, $path, $d, $e);
1902 # reset the global variables:
1904 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1906 foreach $d ( @Import_dir ) {
1907 if ($HiIncludeString) {
1908 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix}";
1910 $HiIncludeString = "$d%.${HiSuffix}";
1915 foreach $d ( @SysImport_dir ) {
1916 if ($HiIncludeString) {
1917 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix_prelude}";
1919 $HiIncludeString = "${d}%.${HiSuffix_prelude}";
1928 %************************************************************************
1930 \section[Driver-misc-utils]{Miscellaneous utilities}
1932 %************************************************************************
1934 %************************************************************************
1936 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
1938 %************************************************************************
1942 local($ofile,$def_suffix) = @_;
1944 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
1948 local($orig_file, $def_suffix) = @_;
1949 if ($Specific_output_dir eq '') { # do nothing
1950 &osuf_ify($orig_file, $def_suffix);
1952 local ($orig_file_only);
1953 ($orig_file_only = $orig_file) =~ s|.*/||;
1954 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
1961 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
1963 local($includes) = '-I' . join(' -I', @Include_dir);
1966 local($c_flags) = "@CcBoth_flags";
1967 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
1969 # "input" files to use that are not in some weird directory;
1970 # to help C compilers grok .hc files [ToDo: de-hackify]
1971 local($cc_help) = "ghc$$.c";
1972 local($cc_help_s) = "ghc$$.s";
1975 $s_output = ($is_hc_file || $TargetPlatform =~ /^(powerpc|rs6000|hppa|i386)/) ? $cc_as_o : $cc_as;
1976 $c_flags .= " @CcRegd_flags";
1977 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
1979 # C compiler won't like the .hc extension. So we create
1980 # a tmp .c file which #include's the needful.
1981 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
1982 if ( $is_hc_file ) {
1984 #ifdef __STG_GCC_REGS__
1985 # if ! (defined(MAIN_REG_MAP) || defined(MARK_REG_MAP) || defined(SCAN_REG_MAP) || defined(SCAV_REG_MAP) || defined(FLUSH_REG_MAP))
1986 # define MAIN_REG_MAP
1989 #include "stgdefs.h"
1991 # user may have asked for #includes to be injected...
1992 print TMP @CcInjects if $#CcInjects >= 0;
1994 # heave in the consistency info
1995 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
1997 # and #include the real source
1998 print TMP "#include \"$hsc_out\"\n";
1999 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2001 local($to_do) = "$cc $Verbose $ddebug_flag $c_flags @Cpp_define -D__HASKELL1__=$Haskell1Version $includes $cc_help > $Tmp_prefix.ccout 2>&1 && ( if [ $cc_help_s != $s_output ] ; then mv $cc_help_s $s_output ; else exit 0 ; fi )";
2002 # note: __GLASGOW_HASKELL__ is pointedly *not* #defined at the C level.
2003 if ( $Only_preprocess_C ) { # HACK ALERT!
2004 $to_do =~ s/ -S\b//g;
2006 @Files_to_tidy = ( $cc_help, $cc_help_s, $s_output );
2007 $PostprocessCcOutput = 1; # hack, dear hack...
2008 &run_something($to_do, 'C compiler');
2009 $PostprocessCcOutput = 0;
2010 unlink($cc_help, $cc_help_s);
2016 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2018 if ( $is_hc_file ) {
2019 # dynamically load assembler-fiddling code, which we are about to use:
2020 require('ghc-asm.prl')
2021 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2024 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2027 # post-process the assembler [.hc files only]
2028 &mangle_asm($cc_as_o, $cc_as);
2032 #OLD: local($target) = 'oops';
2033 #OLD: $target = '-alpha' if $TargetPlatform =~ /^alpha-/;
2034 #OLD: $target = '-hppa' if $TargetPlatform =~ /^hppa/;
2035 #OLD: $target = '-old-asm' if $TargetPlatform =~ /^i386-/;
2036 #OLD: $target = '-m68k' if $TargetPlatform =~ /^m68k-/;
2037 #OLD: $target = '-mips' if $TargetPlatform =~ /^mips-/;
2038 #OLD: $target = '' if $TargetPlatform =~ /^powerpc-/;
2039 #OLD: $target = '-solaris' if $TargetPlatform =~ /^sparc-sun-solaris2/;
2040 #OLD: $target = '-sparc' if $TargetPlatform =~ /^sparc-sun-sunos4/;
2042 #OLD: if ( $target ne '' ) {
2043 #OLD: require("ghc-asm$target.prl")
2044 #OLD: || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm$target.prl!\n");
2045 #OLD: &mangle_asm($cc_as_o, "$cc_as-2"); # the OLD one!
2046 #OLD: &run_something("$Cmp -s $cc_as-2 $cc_as || $Diff $cc_as-2 $cc_as 1>&2 || exit 0",
2047 #OLD: "Diff'ing old and new mangled .s files"); # NB: to stderr
2050 } elsif ($TargetPlatform =~ /^hppa/) {
2051 # minor mangling of non-threaded files for hp-pa only
2052 require('ghc-asm.prl')
2053 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2054 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2056 } elsif ($TargetPlatform =~ /^powerpc|^rs6000/) {
2057 # minor mangling of non-threaded files for powerpcs and rs6000s
2058 require('ghc-asm.prl')
2059 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-powerpc.prl!\n");
2060 &mini_mangle_asm_powerpc($cc_as_o, $cc_as);
2061 } elsif ($TargetPlatform =~ /^i386/) {
2062 # extremely-minor OFFENSIVE mangling of non-threaded just one file
2063 require('ghc-asm.prl')
2064 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2065 &mini_mangle_asm_i386($cc_as_o, $cc_as);
2068 # save a copy of the .s file, even if we are carrying on...
2069 #if ($do_as && $Keep_s_file_too) {
2070 # &saveIntermediate($ifile_root , "s" , $cc_as);
2077 local($as_out, $ifile_root) = @_;
2079 local($asmblr) = ( $As ) ? $As : $CcRegd;
2081 if ( ! $SplitObjFiles ) {
2082 local($to_do) = "$asmblr -o $as_out -c @As_flags $cc_as";
2083 @Files_to_tidy = ( $as_out );
2084 &run_something($to_do, 'Unix assembler');
2086 } else { # more complicated split-ification...
2088 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2090 # If -odir is used, great, just pin it in front of the
2091 # generated split file names. If it hasn't been set, we
2092 # snatch it from the ifile_root.
2096 if ( $Specific_output_dir eq '' ) {
2097 $Specific_output_dir = ${ifile_root};
2100 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2101 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2102 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2103 @Files_to_tidy = ( $split_out );
2105 &run_something($to_do, 'Unix assembler');
2111 %************************************************************************
2113 \subsection[Driver-run-something]{@run_something@: Run a phase}
2115 %************************************************************************
2119 local($str_to_do, $tidy_name) = @_;
2121 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2122 print STDERR "$str_to_do\n" if $Verbose;
2124 if ($Using_dump_file) {
2125 open(DUMP, ">> $Specific_dump_file")
2126 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2127 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2129 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2132 local($return_val) = 0;
2134 if ( length($str_to_do) > 4000) {
2135 # 4000 - on the random side, just like the *real* ARG_MAX
2138 # With some shells, command lines of this length may
2139 # very well cause trouble. To safeguard against this, we squirrel the
2140 # command into a file and exec that.
2141 local ($sh) = $ENV{'REAL_SHELL'};
2142 print STDERR "Backup plan A: saving cmd line in ${Tmp_prefix}.sh and executing that with $sh\n" if $Verbose;
2143 open (TEMP, "> ${Tmp_prefix}.sh") ||
2144 &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.sh'\n");
2145 print TEMP "$Time $str_to_do\n";
2147 &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.sh'\n");
2148 system("$sh $Tmp_prefix.sh");
2151 unlink "${Tmp_prefix}.sh";
2153 system("$Time $str_to_do");
2157 if ( $PostprocessCcOutput ) { # hack, continued
2158 open(CCOUT, "< $Tmp_prefix.ccout")
2159 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2161 next if /attribute directive ignored/;
2162 next if /call-clobbered/;
2163 next if /from .*COptRegs\.lh/;
2164 next if /from .*(stg|rts)defs\.h:/;
2165 next if /from ghc\d+.c:\d+:/;
2166 next if /from .*\.lc/;
2167 next if /from .*SMinternal\.l?h/;
2168 next if /ANSI C does not support \`long long\'/;
2169 next if /warning:.*was declared \`extern\' and later \`static\'/;
2170 next if /warning: assignment discards \`const\' from pointer target type/;
2171 next if /: At top level:$/;
2172 next if /: In function \`.*\':$/;
2173 next if /\`ghc_cc_ID\' defined but not used/;
2176 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2179 if ($return_val != 0) {
2180 if ($Using_dump_file) {
2181 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2184 &tidy_up_and_die($return_val, '');
2186 $Using_dump_file = 0;
2190 %************************************************************************
2192 \subsection[Driver-ghc-timing]{Emit nofibbish GHC timings}
2194 %************************************************************************
2196 NB: nearly the same as in @runstdtest@ script.
2199 sub process_ghc_timings {
2200 local($StatsFile) = "$Tmp_prefix.stat";
2201 local($SysSpecificTiming) = 'ghc';
2203 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2204 local($tot_live) = 0; # for calculating avg residency
2207 $tot_live += $1 if /^\s*\d+\s+\d+\s+\d+\.\d+\%\s+(\d+)\s+\d+\.\d+\%/;
2209 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2211 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2212 $MaxResidency = $1; $ResidencySamples = $2;
2215 $GCs = $1 if /^\s*([0-9,]+) garbage collections? performed/;
2217 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2218 $InitTime = $1; $InitElapsed = $2;
2219 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2220 $MutTime = $1; $MutElapsed = $2;
2221 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2222 $GcTime = $1; $GcElapsed = $2;
2225 close(STATS) || die "Failed when closing $StatsFile\n";
2226 if ( defined($ResidencySamples) && $ResidencySamples > 0 ) {
2227 $AvgResidency = int ($tot_live / $ResidencySamples) ;
2230 # warn about what we didn't find
2231 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2232 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2233 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2234 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2235 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2236 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2237 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2238 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2240 # things we didn't necessarily expect to find
2241 $MaxResidency = 0 unless defined($MaxResidency);
2242 $AvgResidency = 0 unless defined($AvgResidency);
2243 $ResidencySamples = 0 unless defined($ResidencySamples);
2246 $BytesAlloc =~ s/,//g;
2247 $MaxResidency =~ s/,//g;
2249 $InitTime =~ s/,//g;
2250 $InitElapsed =~ s/,//g;
2252 $MutElapsed =~ s/,//g;
2254 $GcElapsed =~ s/,//g;
2256 # print out what we found
2257 print STDERR "<<$SysSpecificTiming: ",
2258 "$BytesAlloc bytes, $GCs GCs, $AvgResidency/$MaxResidency avg/max bytes residency ($ResidencySamples samples), $InitTime INIT ($InitElapsed elapsed), $MutTime MUT ($MutElapsed elapsed), $GcTime GC ($GcElapsed elapsed)",
2259 " :$SysSpecificTiming>>\n";
2266 %************************************************************************
2268 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2270 %************************************************************************
2274 local($to_do) = "\n$Rm $Tmp_prefix*";
2275 if ( $Tmp_prefix !~ /^\s*$/ ) {
2276 print STDERR "$to_do\n" if $Verbose;
2281 sub tidy_up_and_die {
2282 local($return_val, $msg) = @_;
2284 # delete any files to tidy
2285 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2286 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2290 exit (($return_val == 0) ? 0 : 1);
2294 %************************************************************************
2296 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2298 %************************************************************************
2300 Some command-line arguments take an argument, e.g.,
2301 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2302 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2303 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2305 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2306 gobble the second argument (and probably set the heapsize to something
2310 local(*Args, $option, $rest_of_arg) = @_;
2313 return($rest_of_arg);
2314 } elsif ($#Args >= 0) {
2315 local($temp) = $Args[0]; shift(@Args);
2318 print STDERR "$Pgm: no argument following $option option\n";
2329 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2331 foreach $f ( @HsC_antiflags ) {
2332 return(0) if $flag eq $f;
2334 # foreach $f ( @HsC_flags ) {
2335 # return(0) if $flag eq $f;
2340 sub squashHscFlag { # pretty terrible
2344 foreach $f ( @HsC_flags ) {
2345 if ($flag eq $f) { $f = ''; }
2353 foreach $f ( @flags ) {
2354 push( @HsC_flags, $f ) if &isntAntiFlag($f);
2359 Source files may have {-# OPTIONS ... #-} pragmas at the top, containing
2360 command line options we want to append to collection of commands specified
2361 directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell
2362 file for any such pragmas:
2365 sub check_for_source_options {
2366 local($file,$ifile) = @_;
2367 local($comment_start,$comment_end);
2369 if ($ifile =~ /\.hc$/ ||
2372 $ifile =~ /_s$/ ) { # `Real' C intermediate
2373 $comment_start = "/\\*";
2374 $comment_end = "\\*/";
2375 } else { # Assume it is a file containing Haskell source
2376 $comment_start = "{-#";
2377 $comment_end = "#-}";
2380 open(FILE,$file) || return(1); # No big loss
2383 if ( /^${comment_start} OPTIONS (.*)${comment_end}$/ ) {
2384 # add the options found at the back of the command line.
2385 local(@entries) = split(/\s+/,$1);
2386 print STDERR "Found OPTIONS " . join(' ',@entries) . " in $file\n" if $Verbose;
2387 push(@File_options, @entries);
2389 elsif ( /^$/ ) { # ignore empty lines
2392 elsif ( /^#line.+$/ ) { # ignore comment lines
2395 else { # stop looking, something non-empty / not
2396 # ${comment_start} OPTIONS .. ${comment_end} encountered.
2397 close(FILE);return(0);
2406 We split the initial argv up into three arrays:
2412 the reason for doing so is to be able to deal
2413 with {-# OPTIONS #-} pragma in source files properly.
2419 arg: while($_ = $args[0]) {
2421 # sigh, we have to deal with these -option arg specially here.
2422 /^-(tmpdir|odir|o|isuf|osuf|hisuf|hisuf-prelude|odump|syslib)$/ &&
2423 do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; };
2424 /^--?./ && do { push(@Cmd_opts, $_); next arg; };
2427 push(@Link_file, $_);
2429 push(@Input_file, $_);
2432 # input files must exist:
2434 print STDERR "$Pgm: input file doesn't exist: $_\n";
2442 When saving an intermediate file (.hc or .s) away, we
2443 have to prefix any OPTIONS found in the original source file.
2446 sub saveIntermediate {
2447 local ($final,$suffix,$tmp)= @_ ;
2450 # $final -- root of where to park ${final}.${suffix}
2451 # $tmp -- temporary file where hsc put the intermediate file.
2453 # Delete the old file
2454 $to_do = "$Rm ${final}.${suffix}"; &run_something($to_do, "Removing old .${suffix} file");
2456 if ( $#File_options >= 0 ) { # OPTIONS found in Haskell source unit
2457 # Add OPTION comment to the top of the generated .${suffix} file
2458 open(TEMP, "> ${final}.${suffix}") || &tidy_up_and_die(1,"Can't open ${final}.${suffix}\n");
2459 print TEMP "/* OPTIONS " . join(' ',@File_options) . " */\n";
2461 print STDERR "Prepending OPTIONS: " . join(' ',@File_options) . " to ${final}.${suffix}\n" if $Verbose;
2463 $to_do = "$Cat $tmp >> ${final}.${suffix}";
2464 &run_something($to_do, "Saving copy of .${suffix} file");
2471 Command-line processor
2477 # can't use getopt(s); what we want is too complicated
2479 arg: while($_ = $Args[0]) {
2482 #---------- help -------------------------------------------------------
2483 if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; }
2485 #-----------version ----------------------------------------------------
2486 /^--version$/ && do { print STDERR "${PROJECTNAME}, version ${PROJECTVERSION}, patchlevel ${PROJECTPATCHLEVEL}\n"; exit $Status; };
2488 #---------- verbosity and such -----------------------------------------
2489 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
2491 #---------- what phases are to be run ----------------------------------
2492 /^-recomp/ && do { $Do_recomp_chkr = 1; next arg; };
2494 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
2495 # change the global default:
2496 # we won't run cat; we'll run the real thing
2498 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
2500 # stop after generating C
2502 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
2503 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
2505 # leave out actual C generation (debugging) [also turns off interface gen]
2507 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
2508 # _do_ generate an interface; usually used as: -noC -hi
2510 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
2511 # don't generate an interface (even if generating C)
2513 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
2514 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
2515 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
2516 # show/disable diffs if the interface file changes
2518 /^-E$/ && do { push(@CcBoth_flags, '-E');
2519 $Only_preprocess_C = 1;
2520 $Do_as = 0; $Do_lnkr = 0; next arg; };
2521 # stop after preprocessing C
2522 /^-M$/ && do { $Only_generate_deps = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2523 # only generate dependency information.
2524 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
2525 # stop after generating assembler
2527 /^-c$/ && do { $Do_lnkr = 0; next arg; };
2528 # stop after generating .o files
2530 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
2531 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
2532 # don't do consistency-checking after a link
2534 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', '');
2535 $Tmp_prefix = "$Tmp_prefix/ghc$$";
2536 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
2538 # use an alternate directory for temp files
2540 #---------- redirect output --------------------------------------------
2542 # -o <file>; applies to the last phase, whatever it is
2543 # "-o -" sends it to stdout
2544 # if <file> has a directory component, that dir must already exist
2546 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', '');
2548 # Hack, of the worst sort: don't do validation of
2549 # odir argument if you're using -M (dependency generation).
2551 if ( ! $Only_generate_deps && ! -d $Specific_output_dir) {
2552 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
2557 /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', '');
2558 if ($Specific_output_file ne '-'
2559 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
2560 local($dir_part) = $1;
2561 if (! -d $dir_part) {
2562 print STDERR "$Pgm: no such directory: $dir_part\n";
2568 # NB: -isuf not documented yet (because it doesn't work yet)
2569 /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', '');
2570 if ($Isuffix =~ /\./ ) {
2571 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
2576 /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', '');
2577 if ($Osuffix =~ /\./ ) {
2578 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
2583 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
2584 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', '');
2585 if ($Specific_hi_file ne '-'
2586 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
2587 local($dir_part) = $1;
2588 if (! -d $dir_part) {
2589 print STDERR "$Pgm: no such directory: $dir_part\n";
2595 # The suffix to use when looking for interface files
2596 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', '');
2597 if ($HiSuffix =~ /\./ ) {
2598 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
2602 # ToDo: remove, not a `normal' user thing to do (should be automatic)
2603 /^-hisuf-prelude$/ && do { $HiSuffix_prelude = &grab_arg_arg(*Args,'-hisuf-prelude', '');
2604 if ($HiSuffix =~ /\./ ) {
2605 print STDERR "$Pgm: -hisuf-prelude suffix shouldn't contain a .\n";
2609 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', '');
2610 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
2611 local($dir_part) = $1;
2612 if (! -d $dir_part) {
2613 print STDERR "$Pgm: no such directory: $dir_part\n";
2619 #-------------- scc & Profiling Stuff ----------------------------------
2621 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
2624 # generate auto SCCs on top level bindings
2625 # -auto-all = all top level bindings
2626 # -auto = only top level exported bindings
2627 $PROFauto = ( /-all/ )
2628 ? '-fauto-sccs-on-all-toplevs'
2629 : '-fauto-sccs-on-exported-toplevs';
2632 /^-caf-all/ && do { # generate individual CAF SCC annotations
2633 $PROFcaf = '-fauto-sccs-on-individual-cafs';
2636 /^-ignore-scc$/ && do {
2637 # forces ignore of scc annotations even if profiling
2638 $PROFignore_scc = '-W';
2641 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
2644 /^-unprof-scc-auto/ && do {
2645 # generate auto SCCs on top level bindings when not profiling.
2646 # Used to measure optimisation effects of presence of sccs.
2647 $UNPROFscc_auto = ( /-all/ )
2648 ? '-fauto-sccs-on-all-toplevs'
2649 : '-fauto-sccs-on-exported-toplevs';
2652 #--------- ticky/concurrent/parallel -----------------------------------
2653 # we sort out the details a bit later on
2655 /^-concurrent$/ && do { $CONCURing = 'c'; next arg; }; # concurrent Haskell
2656 /^-gransim$/ && do { $GRANing = 'g'; next arg; }; # GranSim
2657 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
2658 /^-parallel$/ && do { $PARing = 'p'; next arg; }; # parallel Haskell
2660 #-------------- "user ways" --------------------------------------------
2662 (/^-user-setup-([a-oA-Z])$/ ) &&
2664 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
2666 local($stuff) = $UserSetupOpts{$BuildTag};
2667 local(@opts) = split(/\s+/, $stuff);
2669 # feed relevant ops into the arg-processing loop (if any)
2670 unshift(@Args, @opts) if $#opts >= 0;
2674 #---------- set search paths for libraries and things ------------------
2676 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
2677 # prepends the items to the list); -I is for including C .h files.
2679 /^-i$/ && do { @Import_dir = (); # import path cleared!
2680 @SysImport_dir = ();
2681 print STDERR "WARNING: import paths cleared by `-i'\n";
2684 /^-i(.*)/ && do { local(@new_items)
2685 = split( /:/, &grab_arg_arg(*Args,'-i', $1));
2686 unshift(@Import_dir, @new_items);
2689 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; };
2690 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; };
2691 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; };
2693 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1);
2694 print STDERR "$Pgm: no such system library (-syslib): $syslib\n",
2695 $Status++ unless $syslib =~ /^(hbc|ghc|posix|contrib)$/;
2697 unshift(@SysImport_dir,
2699 ? "$InstSysLibDir/$syslib/imports"
2700 : "$TopPwd/hslibs/$syslib/src");
2702 if ( ${INSTALLING} ) {
2703 push(@SysLibrary_dir,
2704 ("$InstSysLibDir"));
2706 push(@SysLibrary_dir,
2707 ("$TopPwd/hslibs/$syslib"
2708 ,"$TopPwd/hslibs/$syslib/cbits"));
2711 push(@SysLibrary, "-lHS$syslib");
2712 push(@SysLibrary, "-lHS${syslib}_cbits")
2713 unless $syslib eq 'contrib'; #HACK! it has no cbits
2717 #=======================================================================
2718 # various flags that we can harmlessly send to one program or another
2719 # (we will later "reclaim" some of the compiler ones now sent to gcc)
2720 #=======================================================================
2722 #---------- this driver itself (ghc) -----------------------------------
2723 # these change what executable is run for each phase:
2724 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
2725 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
2726 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
2727 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
2728 /^-pgma(.*)$/ && do { $As = $1; next arg; };
2729 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
2730 /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; };
2732 #---------- the get-anything-through opts (all pgms) -------------------
2733 # these allow arbitrary option-strings to go to any phase:
2734 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
2735 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
2736 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
2737 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
2738 /^-optcpp(.*)$/ && do { push(@Cpp_define, $1); next arg; };
2739 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
2740 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
2741 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
2742 /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; };
2744 #---------- Haskell C pre-processor (hscpp) ----------------------------
2745 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; };
2746 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; };
2748 /^-genSPECS/ && do { $Cpp_flag_set = 1;
2749 $genSPECS_flag = $_;
2752 #---------- post-Haskell "assembler"------------------------------------
2753 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
2754 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
2756 #---------- Haskell compiler (hsc) -------------------------------------
2758 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
2759 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
2761 /^-fhaskell-1\.3$/ && do { next arg; }; # a no-op right now
2763 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
2765 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
2766 # don't do stack checking using page fault `trick'.
2768 /^-fstack-check$/ && do { $StkChkByPageFaultOK = 0; next arg; };
2770 # have the compiler proper generate concurrent code,
2771 # really only used when you want to configure your own
2772 # special user compilation way. (Use -concurrent when
2773 # compiling `Concurrent Haskell' programs).
2775 # (ditto for -fgransim, fscc-profiling and -fticky-ticky)
2777 /^-fconcurrent$/ && do { push(@HsC_flags,$_); next arg; };
2778 /^-fscc-profiling$/ && do { push(@HsC_flags,$_); next arg; };
2779 /^-fticky-ticky$/ && do { push(@HsC_flags,$_); next arg; };
2780 /^-fgransim$/ && do { push(@HsC_flags,$_); next arg; };
2782 /^-user-prelude-force/ && do { # ignore if not -user-prelude
2785 /^-split-objs/ && do {
2786 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|rs6000|sparc)-/ ) {
2788 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
2793 push(@HsC_flags, "-fglobalise-toplev-names");
2794 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
2796 require('ghc-split.prl')
2797 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
2802 && do { push(@HsC_flags, $_);
2803 push(@HsP_flags, '-N');
2805 # push(@HsC_flags, '-fshow-import-specs');
2809 /^-fspeciali[sz]e-unboxed$/
2810 && do { $Oopt_DoSpecialise = '-fspecialise';
2811 $Oopt_SpecialiseUnboxed = '-fspecialise-unboxed';
2814 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
2815 /^-fno-speciali[sz]e$/
2816 && do { $Oopt_DoSpecialise = ''; next arg; };
2819 # Now the foldr/build options, which are *on* by default (for -O).
2822 && do { $Oopt_FoldrBuild = 1;
2823 $Oopt_FB_Support = '-fdo-arity-expand';
2827 /^-fno-foldr-build$/
2828 && do { $Oopt_FoldrBuild = 0;
2829 $Oopt_FB_Support = '';
2832 /^-fno-foldr-build-rule$/
2833 && do { $Oopt_FoldrBuild = 0;
2836 /^-fno-enable-tech$/
2837 && do { $Oopt_FB_Support = '';
2840 /^-fno-snapback-to-append$/
2841 && do { $Oopt_FoldrBuildInline .= ' -fdo-not-fold-back-append ';
2844 # --------------- Renamer -------------
2847 /^-fno-prune-tydecls$/ && do { push(@HsC_flags, $_); next arg; };
2848 /^-fno-prune-instdecls$/ && do { push(@HsC_flags, $_); next arg; };
2852 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
2853 /^-fvia-[cC]$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
2857 /^(-funfolding-use-threshold)(.*)$/
2858 && do { $Oopt_UnfoldingUseThreshold = $1 . &grab_arg_arg(*Args,$1, $2);
2861 /^(-fmax-simplifier-iterations)(.*)$/
2862 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2);
2865 /^-fno-pedantic-bottoms$/
2866 && do { $Oopt_PedanticBottoms = ''; next arg; };
2868 /^-fdo-monad-eta-expansion$/
2869 && do { $Oopt_MonadEtaExpansion = $_; next arg; };
2871 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
2872 && do { push(@HsC_flags, $_); next arg; };
2874 /^(-freturn-in-regs-threshold)(.*)$/
2875 && do { local($what) = $1;
2876 local($num) = &grab_arg_arg(*Args,$what, $2);
2877 if ($num < 2 || $num > 8) {
2878 die "Bad experimental flag: $_\n";
2880 $HscOut = '-C='; # force using C compiler
2881 push(@HsC_flags, "$what$num");
2882 push(@CcRegd_flags, "-D__STG_REGS_AVAIL__=$num");
2886 # --------------- Warnings etc. ------
2888 /^-f(show-import-specs)/
2889 && do { push(@HsC_flags, $_); next arg; };
2891 # for now, just -fwarn-name-shadowing
2892 /^-fwarn-(.*)$/ && do { push(@HsC_flags, $_); next arg; };
2894 /^-fno-warn-(.*)$/ && do { push(@HsC_flags, "-fno-warn-$1"); next arg; };
2896 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
2897 &squashHscFlag("-f$1");
2900 # --------------- platform specific flags (for gcc mostly) ----------------
2902 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes,
2903 # for 2.6.x..?, does not apply for 2.7.2
2905 unshift(@CcBoth_flags, ( $_ ));
2908 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
2909 && do { # for GCC for SPARCs
2910 unshift(@CcBoth_flags, ( $_ ));
2913 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
2914 $StolenX86Regs = $1;
2917 #*************** ... and lots of debugging ones (form: -d* )
2919 # -d(no-)core-lint is done this way so it is turn-off-able.
2920 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
2921 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
2922 # Ditto for STG lint
2923 /^-dstg-lint/ && do { $StgLint = '-dstg-lint'; next arg; };
2924 /^-dno-stg-lint/ && do { $StgLint = ''; next arg; };
2926 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
2927 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
2928 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
2929 /^-dshow-rn-stats/ && do { push(@HsC_flags, $_); next arg; };
2930 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
2931 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
2932 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
2933 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
2935 #*************** ... and now all these -R* ones for its runtime system...
2937 /^-Rscale-sizes?(.*)/ && do {
2938 $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1);
2941 /^(-H|-Rmax-heapsize)(.*)/ && do {
2942 local($heap_size) = &grab_arg_arg(*Args,$1, $2);
2943 if ($heap_size =~ /(\d+)[Kk]$/) {
2944 $heap_size = $1 * 1000;
2945 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
2946 $heap_size = $1 * 1000 * 1000;
2947 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
2948 $heap_size = $1 * 1000 * 1000 * 1000;
2950 if ($heap_size <= 0) {
2951 print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n";
2952 $Specific_heap_size = 0;
2954 # if several heap sizes given, take the largest...
2955 } elsif ($heap_size >= $Specific_heap_size) {
2956 $Specific_heap_size = $heap_size;
2958 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n";
2962 /^-(K|Rmax-(stk|stack)size)(.*)/ && do {
2964 local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3);
2965 if ($stk_size =~ /(\d+)[Kk]$/) {
2966 $stk_size = $1 * 1000;
2967 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
2968 $stk_size = $1 * 1000 * 1000;
2969 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
2970 $stk_size = $1 * 1000 * 1000 * 1000;
2972 if ($stk_size <= 0) {
2973 print STDERR "$Pgm: resetting stack-size to zero!!! $stk_size\n";
2974 $Specific_stk_size = 0;
2976 # if several stack sizes given, take the largest...
2977 } elsif ($stk_size >= $Specific_stk_size) {
2978 $Specific_stk_size = $stk_size;
2980 print STDERR "$Pgm: ignoring stack-size-setting option ($flag $stk_size)...not the largest seen\n";
2984 /^-Rgc-stats$/ && do { $CollectingGCstats++;
2985 # the two RTSs do this diff ways; we will try to compensate
2988 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
2990 #---------- C high-level assembler (gcc) -------------------------------
2991 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
2993 # -dgcc-lint is a useful way of making GCC very fussy.
2994 # From alan@spri.levels.unisa.edu.au (Alan Modra).
2995 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
2996 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
2997 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
2999 # inject "#include <wurble>" into the compiler's C output!
3001 /^-#include(.*)/ && do {
3002 local($to_include) = &grab_arg_arg(*Args,'-#include', $1);
3003 push(@CcInjects, "#include $to_include\n");
3006 #---------- Linker (gcc, really) ---------------------------------------
3008 /^-static$/ && do { push(@Ld_flags, $_); next arg; };
3010 #---------- mixed cc and linker magic ----------------------------------
3011 # this optimisation stuff is finally sorted out later on...
3013 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
3015 /^-O[1-2]?$/ && do {
3016 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
3017 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
3019 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
3022 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
3024 /^-Ofile(.*)/ && do {
3026 local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1);
3027 @HsC_minusO3_flags = ();
3029 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
3032 s/\#.*//; # death to comments
3033 s/[ \t]+//g; # death to whitespace
3034 next if /^$/; # ditto, blank lines
3035 s/([()*{}])/\\$1/g; # protect shell metacharacters
3037 push(@CcBoth_flags, $1);
3039 push(@HsC_minusO3_flags, $_);
3045 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
3046 # in the consistency info
3050 #---------- linking .a file --------------------------------------------
3052 /^-Main(.*)/ && do {
3053 # specifies main or mainPrimIO to be linked
3057 #---------- catch unrecognized flags -----------------------------------
3060 print STDERR "$Pgm: unrecognised option: $_\n";
3066 } # end of processArgs