2 % (c) The GRASP/AQUA Project, Glasgow University, 1992-1997
5 This is the driver script for the Glasgow Haskell compilation system.
6 It is written in \tr{perl}. The first section includes a long
7 ``usage'' message that describes how the driver is supposed to work.
9 %************************************************************************
11 \section[Driver-usage]{Usage message}
13 %************************************************************************
16 ($Pgm = $0) =~ s|.*/||;
17 $ShortUsage = "\nUsage: For basic information, try the `-help' option.\n";
18 $LongUsage = "\n" . <<EOUSAGE;
19 Use of the Glorious Haskell Compilation System driver:
21 $Pgm [command-line-options-and-input-files]
23 ------------------------------------------------------------------------
24 This driver ($Pgm) guides each input file through (some of the)
25 possible phases of a compilation:
27 - unlit: extract code from a "literate program"
28 - hscpp: run code through the C pre-processor (if -cpp flag given)
29 - hsc: run the Haskell compiler proper
30 - gcc: run the C compiler (if compiling via C)
31 - as: run the assembler
34 For each input file, the phase to START with is determined by the
36 - .lhs literate Haskell: unlit
37 - .hs illiterate Haskell: hsc
38 - .hc C from the Haskell compiler: gcc
39 - .c C not from the Haskell compiler: gcc
40 - .s assembly language: as
41 - other passed directly to the linker: ld
43 If no files are given on the command line, input is taken from
44 standard input, and processing is as for an .hs file. (All output is
45 to stdout or stderr, however).
47 The phase at which to STOP processing is determined by a command-line
49 -E stop after generating preprocessed, de-litted Haskell (used in conjunction with -cpp)
50 -C stop after generating C (.hc output)
51 -S stop after generating assembler (.s output)
52 -c stop after generating object files (.o output)
54 Other commonly-used options are:
56 -O An `optimising' package of compiler flags, for faster code
58 -prof Compile for cost-centre profiling
59 (add -auto for automagic cost-centres on top-level functions)
61 -fglasgow-exts Allow Glasgow extensions (unboxed types, etc.)
63 -H14m Increase compiler's heap size
65 -M Output the Makefile rules recording the
66 dependencies of a list of Haskell files.
67 (ghc driver script calls upon the help of a
68 compatible mkdependHS script to do the actual
71 The User's Guide has more information about GHC's *many* options.
73 Given the above, here are some TYPICAL invocations of $Pgm:
75 # compile a Haskell module to a .o file, optimising:
77 # link three .o files into an executable called "test":
78 % $Pgm -o test Foo.o Bar.o Baz.o
79 # compile a Haskell module to C (a .hc file), using a bigger heap:
80 % $Pgm -C -H16m Foo.hs
81 # compile Haskell-produced C (.hc) to assembly language:
83 ------------------------------------------------------------------------
87 %************************************************************************
89 \section[Driver-init]{Initialisation}
91 %************************************************************************
93 The driver script need to be told where to find these executables, so
94 in the course of building the driver `executable', make-variables holding
95 these are prepended to the de-litted version of this file. The variables are:
100 HOSTPLATFORM TARGETPLATFORM
102 PROJECTNAME PROJECTVERSION PROJECTPATCHLEVEL
106 bindir libdir libexecdir datadir
110 GHC_LIB_DIR GHC_RUNTIME_DIR GHC_UTILS_DIR GHC_INCLUDE_DIR
112 GHC_OPT_HILEV_ASM GhcWithNativeCodeGen
114 GHC_UNLIT GHC_HSCPP GHC_HSC GHC_SYSMAN
118 WAY_*_NAME WAY_*_HC_OPTS
124 Establish what executables to run for the various phases, what the
125 default options are for those phases, and other similar boring stuff.
128 select(STDERR); $| = 1; select(STDOUT); # no STDERR buffering, please.
130 $TargetPlatform = $TARGETPLATFORM;
132 $TopPwd = "${TOP_PWD}";
133 $InstBinDirGhc = "${bindir}";
134 $InstLibDirGhc = "${libdir}";
136 # Normally the same as InstLibDirGhc, but we accommodate
137 # for it being separate.
139 $InstLibExecDirGhc = "${libexecdir}";
140 $InstDataDirGhc = "${datadir}";
141 $InstSysLibDir = ( $INSTALLING ) ? "${InstLibDirGhc}/hslibs" : "$TopPwd/hslibs";
143 $Status = 0; # just used for exit() status
146 # set up signal handler
147 sub quit_upon_signal { &tidy_up_and_die(1, ''); }
148 $SIG{'INT'} = 'quit_upon_signal';
149 $SIG{'QUIT'} = 'quit_upon_signal';
151 # where to get "require"d .prl files at runtime (poor man's dynamic loading)
152 # (use LIB, not DATA, because we can't be sure of arch-independence)
153 @INC = ( ( $INSTALLING ) ? $InstLibDirGhc
154 : "$TopPwd/${CURRENT_DIR}" );
156 if ( $ENV{'TMPDIR'} ) { # where to make tmp file names
157 $Tmp_prefix = ($ENV{'TMPDIR'} . "/ghc$$");
159 print STDERR "TMPDIR has not been set to anything useful!\n" if (${TMPDIR} eq '');
160 $Tmp_prefix ="${TMPDIR}/ghc$$"; # TMPDIR set via Makefile when booting..
161 $ENV{'TMPDIR'} = ${TMPDIR}; # set the env var as well
164 # Some shells run into real trouble when command line and environment
165 # gets big (e.g., cmd lines of >4K to /bin/sh causes havoc on our
166 # Solaris-2.5.1 boxes - even though sysconf(_SC_ARG_MAX) reports 1M ...).
167 # To work around any such */bin/sh* problems, we will scribble such
168 # awfully long command lines into a temp file and exec that temp file
169 # with $(REAL_SHELL) (don't use the SHELL variable directly as this
170 # will normally get you the wrong thing when the driver is invoked
171 # from within `make'). If the REAL_SHELL variable isn't set, you'll
172 # get SHELL. This is all a terrible hack. (in case you hadn't reached
173 # the same conclusion by now :-)
177 if ( ! $ENV{'REAL_SHELL'} ) {
178 $ENV{'REAL_SHELL'} = $ENV{'SHELL'};
181 @Files_to_tidy = (); # files we nuke in the case of abnormal termination
183 $Unlit = ( $INSTALLING ) ? "$InstLibExecDirGhc/unlit"
184 : "$TopPwd/${CURRENT_DIR}/${GHC_UNLIT}";
188 $Diff = $CONTEXT_DIFF;
193 $HsCpp = # but this is re-set to "cat" (after options) if -cpp not seen
194 ( $INSTALLING ) ? "$InstLibExecDirGhc/hscpp"
195 : "$TopPwd/${CURRENT_DIR}/${GHC_HSCPP}";
198 $genSPECS_flag = ''; # See ../utils/hscpp/hscpp.prl
199 $HsC = ( $INSTALLING ) ? "$InstLibExecDirGhc/hsc"
200 : "$TopPwd/${CURRENT_DIR}/${GHC_HSC}";
202 # For PVM fiends only
203 $SysMan = ( $INSTALLING ) ? "$InstLibExecDirGhc/SysMan"
204 : "$TopPwd/${CURRENT_DIR}/${GHC_SYSMAN}";
209 # HsC_rts_flags: if we want to talk to the LML runtime system
210 # NB: we don't use powers-of-2 sizes, because this may do
211 # terrible things to cache behavior.
213 $Specific_heap_size = 6 * 1000 * 1000;
214 $Specific_stk_size = 1000 * 1000;
215 $Scale_sizes_by = 1.0;
219 The variables set by @setupOptFlags@ represent parts of the
220 -O/-O2/etc ``templates,'' which are filled in later, using these.
221 These are the default values, which may be changed by user flags.
225 $Oopt_UnfoldingUseThreshold = '-fsimpl-uf-use-threshold3';
226 $Oopt_MaxSimplifierIterations = '-fmax-simplifier-iterations4';
227 $Oopt_PedanticBottoms = '-fpedantic-bottoms'; # ON by default
228 $Oopt_MonadEtaExpansion = '';
229 $Oopt_FinalStgProfilingMassage = '';
231 $Oopt_SpecialiseUnboxed = '';
232 $Oopt_DoSpecialise = ''; # ToDo:LATER: '-fspecialise';
233 $Oopt_FoldrBuild = 0; # *Off* by default!
234 $Oopt_FB_Support = ''; # was '-fdo-arity-expand';
235 # $Oopt_FoldrBuildWW = 0; # Off by default
236 $Oopt_FoldrBuildInline = ''; # was '-fdo-inline-foldr-build';
237 $Oopt_ShowSimplifierProgress = '';
238 } # end of setupOptFlags
240 # Assign defaults to these right away.
244 Things to do with C compilers/etc:
246 $CcRegd = $GHC_OPT_HILEV_ASM;
247 @CcBoth_flags = ('-S'); # flags for *any* C compilation
251 # those for all files,
252 # those only for .c files;
253 # those only for .hc files
255 @CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__');
256 @CcRegd_flags_c = ();
257 @CcRegd_flags_hc = ();
259 $As = ''; # "assembler" is normally GCC
262 $Lnkr = ''; # "linker" is normally GCC
265 # 'nm' is used for consistency checking (ToDo: mk-world-ify)
266 # ToDo: check the OS or something ("alpha" is surely not the crucial question)
267 $Nm = ($TargetPlatform =~ /^alpha-/) ? 'nm -B' : 'nm';
270 What options \tr{-user-setup-a} turn into (user-defined ``packages''
271 of options). Note that a particular user-setup implies a particular
272 Prelude ({\em including} its interface file(s)).
274 $BuildTag = ''; # default is sequential build w/ Appel-style GC
276 %BuildDescr = (# system ways begin
277 '', 'normal sequential',
281 '_mc', "$WAY_mc_NAME",
282 '_mr', "$WAY_mr_NAME",
283 '_mt', "$WAY_mt_NAME",
284 '_mp', "$WAY_mp_NAME",
285 '_mg', "$WAY_mg_NAME",
286 '_2s', "$WAY_2s_NAME",
287 '_1s', "$WAY_1s_NAME",
288 '_du', "$WAY_du_NAME",
306 '_B', "$WAY_B_NAME" );
308 # these are options that are "fed back" through the option processing loop
312 '_a', "$WAY_a_HC_OPTS",
313 '_b', "$WAY_b_HC_OPTS",
314 '_c', "$WAY_c_HC_OPTS",
315 '_d', "$WAY_d_HC_OPTS",
316 '_e', "$WAY_e_HC_OPTS",
317 '_f', "$WAY_f_HC_OPTS",
318 '_g', "$WAY_g_HC_OPTS",
319 '_h', "$WAY_h_HC_OPTS",
320 '_i', "$WAY_i_HC_OPTS",
321 '_j', "$WAY_j_HC_OPTS",
322 '_k', "$WAY_k_HC_OPTS",
323 '_l', "$WAY_l_HC_OPTS",
324 '_m', "$WAY_m_HC_OPTS",
325 '_n', "$WAY_n_HC_OPTS",
326 '_o', "$WAY_o_HC_OPTS",
327 '_A', "$WAY_A_HC_OPTS",
328 '_B', "$WAY_B_HC_OPTS",
331 '_p', "$WAY_p_HC_OPTS",
332 '_t', "$WAY_t_HC_OPTS",
333 '_u', "$WAY_u_HC_OPTS",
334 '_mc', "$WAY_mc_HC_OPTS",
335 '_mr', "$WAY_mr_HC_OPTS",
336 '_mt', "$WAY_mt_HC_OPTS",
337 '_mp', "$WAY_mp_HC_OPTS",
338 '_mg', "$WAY_mg_HC_OPTS",
339 '_2s', "$WAY_2s_HC_OPTS",
340 '_1s', "$WAY_1s_HC_OPTS",
341 '_du', "$WAY_B_HC_OPTS" );
345 Import/include directories (\tr{-I} options) are sufficiently weird to
346 require special handling.
349 @Import_dir = ('.'); #-i things
350 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
352 # where to look for interface files (system hi's, i.e., prelude and hslibs)
353 @SysImport_dir = ( $INSTALLING )
354 ? ( "$InstLibDirGhc/imports" )
355 : ( "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/required"
356 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/ghc"
357 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/glaExts"
358 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent" );
360 # We need to look in ghc/ and glaExts/ when searching for implicitly needed .hi files, but
361 # we should really *not* look there for explicitly imported modules.
363 $GhcVersionInfo = int ($PROJECTVERSION * 100);
364 $Haskell1Version = 4; # i.e., Haskell 1.4
367 @UserLibrary_dir= (); #-L things;...
368 @UserLibrary = (); #-l things asked for by the user
370 @SysLibrary_dir = ( ( $INSTALLING ) #-syslib things supplied by the system
372 : ( "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR"
373 , "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/gmp"
374 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR"
375 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/cbits"
378 @SysLibrary = (); # will be built up as we go along
380 $TopClosureFile # defaults to 1.2 one; will be mangled later
381 = ( $INSTALLING) ? "$InstLibDirGhc/TopClosureXXXX.o"
382 : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/main/TopClosureXXXX.o";
384 # make depend for Haskell
386 = ( $INSTALLING ) ? "$InstBinDirGhc/mkdependHS"
387 : "$TopPwd/$CURRENT_DIR/$GHC_UTILS_DIR/mkdependHS/mkdependHS";
389 @MkDependHS_flags = ();
391 # do_link flag should not be reset while rescanning the cmd-line.
393 $Specific_output_dir = ''; # set by -odir <dir>
394 $Specific_output_file = ''; # set by -o <file>; "-" for stdout
397 Function to initialise the per-compilation-unit globals that
398 are used to guide and control the invocation of the different phases.
401 sub initDriverGlobals {
403 # reset the following options:
404 # RTS flags to use while compiling
406 @HsP_flags = (); # these are the flags destined solely for
407 # the flex/yacc parser
412 The optimisations/etc to be done by the compiler are {\em normally}
413 expressed with a \tr{-O} (or \tr{-O2}) flag, or by its absence.
416 $OptLevel = 0; # no -O == 0; -O == 1; -O2 == 2; -Ofile == 3
417 $MinusO2ForC = 0; # set to 1 if -O2 should be given to C compiler
418 $StolenX86Regs = 4; # **HACK*** of the very worst sort
422 @CcBoth_flags = ('-S'); # flags for *any* C compilation
425 # GCC flags: those for all files, those only for .c files; those only for .hc files
426 @CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__');
427 @CcRegd_flags_c = ();
428 @CcRegd_flags_hc = ();
430 @Import_dir = ('.'); #-i things
431 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
436 We are given a list of files with various presumably-known suffixes
437 (unknown-suffix files go straight to the linker). For each file, we
438 begin by assuming that we'll run every phase over it. However: (1)
439 global flags (\tr{-c}, \tr{-S}, etc.) tell us not to run any phase
440 past a certain point; and (2) the file's suffix tells us what phase to
441 start with. Linking is weird and kept track of separately.
443 Here are the initial defaults applied to all files:
445 $Cpp_flag_set = 0; # (hack)
446 $Only_preprocess_C = 0; # pretty hackish
447 $Only_preprocess_hc = 0; # ditto
448 $Only_generate_deps = 0; # "
449 $PostprocessCcOutput = 0;
451 # native code-gen or via C?
452 $HaveNativeCodeGen = $GhcWithNativeCodeGen;
453 $HscOut = '-C='; # '-C=' ==> .hc output; '-S=' ==> .s output; '-N=' ==> neither
455 if $HaveNativeCodeGen && $TargetPlatform =~ /^(alpha|sparc)-/;
456 # TEMP: disable x86 if $HaveNativeCodeGen && $TargetPlatform =~ /^(i386|alpha|sparc)-/;
457 $ProduceHi = '-hifile=';
462 $CollectingGCstats = 0;
463 $CollectGhcTimings = 0;
464 $DEBUGging = ''; # -DDEBUG and all that it entails (um... not really)
465 $PROFing = ''; # set to p or e if profiling
466 $PROFgroup = ''; # set to group if an explicit -Ggroup specified
467 $PROFauto = ''; # set to relevant hsc flag if -auto or -auto-all
468 $PROFcaf = ''; # set to relevant hsc flag if -caf-all
469 $PROFignore_scc = ''; # set to relevant parser flag if explicit sccs ignored
470 $UNPROFscc_auto = ''; # set to relevant hsc flag if forcing auto sccs without profiling
471 $TICKYing = ''; # set to t if compiling for ticky-ticky profiling
472 $PARing = ''; # set to p if compiling for PAR
473 $CONCURing = ''; # set to c if compiling for CONCURRENT
474 $GRANing = ''; # set to g if compiling for GRAN
475 $StkChkByPageFaultOK = 1; # may be set to 0 (false) for some builds
476 $Specific_hi_file = ''; # set by -ohi <file>; "-" for stdout
477 $Specific_dump_file = ''; # set by -odump <file>; "-" for stdout
478 $Using_dump_file = 0;
480 $Osuffix = ''; # default: use the normal suffix for that kind of output
482 $HiSuffix_prelude = '';
483 $Do_recomp_chkr = 0; # don't use the recompilatio checker unless asked
484 $Do_cc = -1; # a MAGIC indeterminate value; will be set to 1 or 0.
487 $Keep_hc_file_too = 0;
488 $Keep_s_file_too = 0;
489 $UseGhcInternals = 0; # if 1, may use GHC* modules
492 $Dump_parser_output = 0;
494 $Dump_asm_splitting_info = 0;
495 $NoImplicitPrelude = 0;
498 } # end of initDriverGlobals (Sigh)
500 # we split the argv passed to the driver into three:
505 # and files to be linked...
511 # cmd line options prefixing the unit we're compiling
516 We inject consistency-checking information into \tr{.hc} files (both
517 when created by the Haskell compiler and when compiled by the C
518 compiler), so that we can check that an executable is made from
519 consistently-built pieces. (The check is normally done just after
520 linking.) The checking is done by introducing/munging
521 \tr{what(1)}-style strings. Anyway, here are the relevant global
522 variables and their defaults:
524 $LinkChk = 1; # set to 0 if the link check should *not* be done
526 # major & minor version numbers; major numbers must always agree;
527 # minor disagreements yield a warning.
528 $HsC_major_version = 33;
529 $HsC_minor_version = 0;
530 $Cc_major_version = 36;
531 $Cc_minor_version = 1;
533 # options: these must always agree
534 $HsC_consist_options = ''; # we record, in this order:
535 # Build tag; debugging?
536 $Cc_consist_options = ''; # we record, in this order:
537 # Build tag; debugging?
540 %************************************************************************
542 \section[Driver-parse-argv]{Munge the command-line options}
544 %************************************************************************
546 Now slurp through the arguments.
549 #---------- user defined prelude ---------------------------------------
551 if (grep(/^-user-prelude$/, @ARGV)) {
553 # If ARGV contains -user-prelude we are compiling a piece of
554 # prelude for the user, probably with additional specialise pragmas
556 # We strip out the -O -f and -user-prelude flags provided on
557 # the command line and add the ones used to compile the prelude
558 # ToDo: get these options from a common definition in mkworld
560 # We also enable any options forced through with -user-prelude-force
562 # Hey, Check out this grep statement ;-) (PS)
564 @ARGV = grep((!/^-O/ && !/^-f/ && !/^-user-prelude$/) || s/^-user-prelude-force//,
568 '-fcompiling-ghc-internals=???', # ToDo!!!!
570 '-fshow-pragma-name-errs',
571 '-fshow-import-specs',
577 print STDERR "ghc: -user-prelude options:\n", "@ARGV", "\n";
580 &initDriverGlobals();
581 &splitCmdLine(@ARGV);
582 # Run through the cmd-line first time.
583 &processArgs(@Cmd_opts);
585 # Check to see if driver is only in the business
586 # to generate dependencies
587 if ( $Status == 0 && $Only_generate_deps ) {
589 push (@MkDependHS_flags, "-o$Osuffix") if $Osuffix;
590 push (@MkDependHS_flags, "-s$BuildTag") if $BuildTag;
591 push (@MkDependHS_flags, "-D__HASKELL1__=$Haskell1Version");
592 local($to_do) = "$MkDependHS @MkDependHS_flags -- @Cmd_opts -- @Input_file" ;
593 &run_something($to_do, 'Haskell dependencies');
597 # if there are several input files,
598 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
599 # (except if linking, of course)
601 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
602 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
603 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
604 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
605 print STDERR "\tPerhaps the -odir option will do what you want.\n";
610 # check for various pathological -o and -odir combinations...
611 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
612 if ($Specific_output_file eq '-') {
613 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
615 } else { # amalgamate...
616 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
617 # ToDo: check we haven't got a junk name now...
618 $Specific_output_dir = ''; # reset
622 # crash and burn if there were errors
624 print STDERR $ShortUsage;
629 %************************************************************************
631 \section[Driver-post-argv-mangling]{Setup after reading options}
633 %************************************************************************
635 %************************************************************************
637 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
639 %************************************************************************
641 We come now to the default ``wads of options'' that are turned on by
642 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
643 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
646 The user can also specify his/her own list of options in a file; in
647 that case, the work is already done (see stuff about @minusO3@,
650 GHC allows very precise control of what happens during a compilation.
651 Core-to-Core and STG-to-STG passes can be run in any order, as many
652 times as you like. Individual transformations can be turned on or
655 Sadly, however, there are some interdependencies \& Things You Must
656 Not Do. Here is the list.
660 \item[\tr{-fspecialise}:]
661 The specialiser must have dependency-analysed input; but if you run
662 the simplifier to do this, you must not let it toss away unused
663 bindings! (The typechecker conveys some specialisation info via
664 ``unused'' bindings...)
666 \item[\tr{-ffloat-inwards}:]
667 Floating inwards should be done before strictness analysis, because
668 the latter will give better results.
670 \item[\tr{-fstatic-args}:]
671 The static-arguments-transformation pass {\em must} have the
672 simplifier run right after it.
674 \item[\tr{-fcalc-inlinings[12]}:]
675 Not required, but there may be slight gains by re-simplifying after
676 this is done. (You could then \tr{-fcalc-inlinings} again, just for
679 \item[\tr{-ffull-laziness}:]
680 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
681 that's run. (Um, well, howzabout the simplifier just once more...)
686 \item[\tr{-fupdate-analysis}:]
687 It really really wants to be the last STG-to-STG pass that is run.
692 sub setupOptimiseFlags {
698 '-ffloat-lets-exposing-whnf',
699 '-ffloat-primops-ok',
701 # '-fdo-lambda-eta-expansion', # too complicated
703 # '-flet-to-case', # no strictness analysis, so...
704 $Oopt_PedanticBottoms,
705 # $Oopt_MonadEtaExpansion, # no thanks
707 # These two work fine, if you really want no simplification at all,
708 # for bizarre test reasons. But you get really terrible code if you use them,
709 # for example: let x = e in x
710 # with dozens of redundant thunks etc. So I'm leaving them out.
712 # '-fsimpl-uf-use-threshold0',
713 # '-fessential-unfoldings-only',
715 $Oopt_UnfoldingUseThreshold,
716 $Oopt_MaxSimplifierIterations,
717 $Oopt_ShowSimplifierProgress,
720 # '-ffull-laziness', # removed 95/04 WDP following Andr\'e's lead
722 $Oopt_FinalStgProfilingMassage
725 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
727 '-fdo-eta-reduction',
729 # initial simplify: mk specialiser happy: minimum effort please
733 '-fkeep-spec-pragma-ids', # required before specialisation
735 # I don't understand why we want -fessential-unfoldings-only here
736 # If we have it, the following nasty thing happens:
740 # where "*" means exported.
741 # In the essential-unfoldings pass we still substitute f for g
742 # but we don't substitute E for f first. So we get
746 # The g=f will get reverse-substituted later, but it's untidy.
748 # '-fessential-unfoldings-only',
749 # '-fsimpl-uf-use-threshold0',
751 '-fmax-simplifier-iterations1',
752 $Oopt_PedanticBottoms,
755 ($Oopt_DoSpecialise) ? (
756 '-fspecialise-overloaded',
757 $Oopt_SpecialiseUnboxed,
761 '-fsimplify', # need dependency anal after specialiser ...
762 '\(', # need tossing before calc-inlinings ...
764 '-ffloat-lets-exposing-whnf',
765 '-ffloat-primops-ok',
769 # '-fdo-eta-reduction',
770 '-fdo-lambda-eta-expansion',
772 $Oopt_PedanticBottoms,
773 $Oopt_MonadEtaExpansion,
774 $Oopt_UnfoldingUseThreshold,
775 $Oopt_MaxSimplifierIterations,
776 $Oopt_ShowSimplifierProgress,
779 #LATER: '-fcalc-inlinings1', -- pointless for 2.01
781 # ($Oopt_FoldrBuildWW) ? (
782 # '-ffoldr-build-ww-anal',
783 # '-ffoldr-build-worker-wrapper',
787 # '-ffloat-lets-exposing-whnf',
788 # '-ffloat-primops-ok',
792 # '-fdo-eta-reduction',
793 # '-fdo-lambda-eta-expansion',
795 # $Oopt_PedanticBottoms,
796 # $Oopt_MonadEtaExpansion,
797 # $Oopt_UnfoldingUseThreshold,
798 # $Oopt_MaxSimplifierIterations,
799 # $Oopt_ShowSimplifierProgress,
803 # this pass-ordering sequence was agreed by Simon and Andr\'e
804 # (WDP 94/07, 94/11).
807 ($Oopt_FoldrBuild) ? (
808 '-ffoldr-build-on', # desugar list comprehensions for foldr/build
812 '-fignore-inline-pragma', # **** NB!
813 '-fdo-foldr-build', # NB
815 '-ffloat-lets-exposing-whnf',
816 '-ffloat-primops-ok',
820 # '-fdo-eta-reduction',
821 '-fdo-lambda-eta-expansion', # After full laziness
823 $Oopt_PedanticBottoms,
824 $Oopt_MonadEtaExpansion,
825 $Oopt_UnfoldingUseThreshold,
826 $Oopt_MaxSimplifierIterations,
827 $Oopt_ShowSimplifierProgress,
836 '-ffloat-lets-exposing-whnf',
837 '-ffloat-primops-ok',
841 '-fdo-eta-reduction',
842 '-fdo-lambda-eta-expansion',
844 ($Oopt_FoldrBuildInline),
845 # you need to inline foldr and build
846 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
847 # but do reductions if you see them!
848 $Oopt_PedanticBottoms,
849 $Oopt_MonadEtaExpansion,
850 $Oopt_UnfoldingUseThreshold,
851 $Oopt_MaxSimplifierIterations,
852 $Oopt_ShowSimplifierProgress,
860 '-ffloat-lets-exposing-whnf',
861 '-ffloat-primops-ok',
865 # '-fdo-eta-reduction',
866 '-fdo-lambda-eta-expansion',
868 '-flet-to-case', # Aha! Only done after strictness analysis
869 $Oopt_PedanticBottoms,
870 $Oopt_MonadEtaExpansion,
871 $Oopt_UnfoldingUseThreshold,
872 $Oopt_MaxSimplifierIterations,
873 $Oopt_ShowSimplifierProgress,
878 # Case-liberation for -O2. This should be after
879 # strictness analysis and the simplification which follows it.
883 # : "-fliberate-case -fsimplify \\( $Oopt_FB_Support -ffloat-lets-exposing-whnf -ffloat-primops-ok -fcase-of-case -fdo-case-elim -fcase-merge -fdo-eta-reduction -fdo-lambda-eta-expansion -freuse-con -flet-to-case $Oopt_PedanticBottoms $Oopt_MonadEtaExpansion $Oopt_UnfoldingUseThreshold $Oopt_MaxSimplifierIterations $Oopt_ShowSimplifierProgress \\)" ),
885 # Final clean-up simplification:
890 '-ffloat-lets-exposing-whnf',
891 '-ffloat-primops-ok',
895 # '-fdo-eta-reduction',
896 '-fdo-lambda-eta-expansion',
899 '-fignore-inline-pragma', # **** NB!
900 $Oopt_FoldrBuildInline,
901 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
902 # but still do reductions if you see them!
903 $Oopt_PedanticBottoms,
904 $Oopt_MonadEtaExpansion,
905 $Oopt_UnfoldingUseThreshold,
906 $Oopt_MaxSimplifierIterations,
907 $Oopt_ShowSimplifierProgress,
912 #LATER: '-fcalc-inlinings2', -- pointless for 2.01
917 $Oopt_FinalStgProfilingMassage,
923 # SPECIAL FLAGS for -O2
931 Sort out what we're going to do about optimising. First, the @hsc@
932 flags and regular @cc@ flags to worry about:
934 if ( $OptLevel <= 0 ) {
936 # for this level, we tell the parser -fignore-interface-pragmas
937 push(@HsC_flags, '-fignore-interface-pragmas');
938 # and tell the compiler not to produce them
939 push(@HsC_flags, '-fomit-interface-pragmas');
941 &add_Hsc_flags( @HsC_minusNoO_flags );
942 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
944 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
946 &add_Hsc_flags( @HsC_minusO_flags );
947 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
948 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
949 # but it *is* useful in compiling the garbage collectors (so said
950 # Patrick many moons ago...).
952 } else { # -Ofile, then...
954 &add_Hsc_flags( @HsC_minusO3_flags );
955 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
958 } # setupOptimiseFlags
962 %************************************************************************
964 \subsection{Check for consistency, etc.}
966 %************************************************************************
968 Sort out @$BuildTag@, @$PROFing@, @$CONCURing@, @$PARing@,
969 @$GRANing@, @$TICKYing@:
971 sub setupBuildFlags {
974 # PROFILING stuff after argv mangling:
976 # warn about any scc exprs found (in case scc used as identifier)
977 push(@HsP_flags, '-W');
979 # add -auto sccs even if not profiling !
980 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
983 push(@HsC_flags, $PROFauto) if $PROFauto;
984 push(@HsC_flags, $PROFcaf) if $PROFcaf;
985 #push(@HsC_flags, $PROFdict) if $PROFdict;
987 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
989 push(@HsP_flags, (($PROFignore_scc) ? $PROFignore_scc : '-S'));
991 if ( $SplitObjFiles ) {
992 # can't split with cost centres -- would need global and externs
993 print STDERR "$Pgm: WARNING: splitting objects when profiling will *BREAK* if any _scc_s are present!\n";
994 # (but it's fine if there aren't any _scc_s around...)
995 # $SplitObjFiles = 0; # unset
996 #not an error: for now: $Status++;
999 #if ( $BuildTag ne '' ) {
1000 # local($b) = $BuildDescr{$BuildTag};
1001 # if ($CONCURing eq 'c') { print STDERR "$Pgm: Can't mix $b with -concurrent.\n"; exit 1; }
1002 # if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
1003 # if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
1004 # if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
1006 # # ok to have a user-way profiling build
1007 # # eval the profiling opts ... but leave user-way BuildTag
1008 # if ($PROFing eq 'p') { &processArgs(split(' ', $SetupOpts{'_p'})); } # eval($EvaldSetupOpts{'_p'}); }
1010 if ( $PROFing eq 'p' ) {
1011 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
1012 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
1013 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
1014 $BuildTag = ($CONCURing eq 'c') ? '_mr' : '_p' ; # possibly "profiled concurrent"...
1016 } elsif ( $CONCURing eq 'c' ) {
1017 if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix -concurrent with -parallel.\n"; exit 1; }
1018 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -concurrent with -gransim.\n"; exit 1; }
1019 $BuildTag = ($TICKYing eq 't') ? '_mt' : '_mc' ; # possibly "ticky concurrent"...
1020 # "profiled concurrent" already acct'd for...
1022 } elsif ( $PARing eq 'p' ) {
1023 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
1024 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
1027 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
1028 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
1032 } elsif ( $GRANing eq 'g' ) {
1033 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
1036 } elsif ( $TICKYing eq 't' ) {
1042 After the sanity checks, add flags to the necessary parts of the driver pipeline:
1045 if ( $BuildTag ne '' ) { # something other than normal sequential...
1047 local($Tag) = "${BuildTag}";
1048 $Tag =~ s/_//; # move the underscore to the back
1050 $HscOut = '-C='; # must go via C
1051 &processArgs(split(' ', $SetupOpts{$BuildTag}));
1052 # eval($EvaldSetupOpts{$BuildTag});
1056 Decide what the consistency-checking options are in force for this run:
1059 $HsC_consist_options = "${BuildTag},${DEBUGging}";
1060 $Cc_consist_options = "${BuildTag},${DEBUGging}";
1063 # Funny place to put it, but why not.
1065 if ( $HiSuffix_prelude eq '' ) {
1066 local($Tag) = "${BuildTag}";
1068 $Tag = "${Tag}_" if $Tag ne '';
1069 $HiSuffix_prelude="${Tag}hi";
1071 #push(@HsC_flags, "-hisuf-prelude=.${HiSuffix_prelude}"); # use appropriate Prelude .hi files
1072 #push(@HsC_flags, "-hisuf=.${HiSuffix}");
1077 %************************************************************************
1079 \subsection{Add on machine-specific C-compiler flags}
1081 %************************************************************************
1083 Shove on magical machine-specific options. We use \tr{unshift} to
1084 stick them on the {\em front} of the arrays, so that ``later''
1085 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
1087 Note: a few ``always apply'' flags were set at the very beginning.
1092 if ($TargetPlatform =~ /^alpha-/) {
1093 # we know how to *mangle* asm for alpha
1094 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1095 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1096 unshift(@CcBoth_flags, ('-static'));
1098 } elsif ($TargetPlatform =~ /^hppa/) {
1099 # we know how to *mangle* asm for hppa
1100 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1101 unshift(@CcBoth_flags, ('-static'));
1103 # We don't put in '-mlong-calls', because it's only
1104 # needed for very big modules (sigh), and we don't want
1105 # to hobble ourselves further on all the other modules
1108 # [Dated comment (gcc-2.6.x?), -mlong-calls is no longer
1109 # a supported gcc HPPA flag]
1110 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
1111 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
1112 # (very nice, but too bad the HP /usr/include files don't agree.)
1114 } elsif ($TargetPlatform =~ /^i386-/) {
1115 # we know how to *mangle* asm for X86
1116 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1117 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK && $TargetPlatform !~ /nextstep/;
1118 # I do not know how to do STACK_CHECK_BY_PAGE_FAULT
1119 # on NeXTs (my fault, not theirs), so I don't.
1122 # -fno-defer-pop : basically the same game as for m68k
1124 # -fomit-frame-pointer : *must* ; because we're stealing
1125 # the fp (%ebp) for our register maps. *All* register
1126 # maps (in MachRegs.lh) must steal it.
1128 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1129 unshift(@CcRegd_flags, '-fomit-frame-pointer');
1130 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1132 } elsif ($TargetPlatform =~ /^m68k-/) {
1133 # we know how to *mangle* asm for m68k
1134 unshift (@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1135 unshift (@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK && $TargetPlatform !~ /nextstep/;
1136 # I do not know how to do STACK_CHECK_BY_PAGE_FAULT
1137 # on NeXTs (my fault, not theirs), so I don't.
1140 # -fno-defer-pop : for the .hc files, we want all the pushing/
1141 # popping of args to routines to be explicit; if we let things
1142 # be deferred 'til after an STGJUMP, imminent death is certain!
1144 # -fomit-frame-pointer : *don't*
1145 # It's better to have a6 completely tied up being a frame pointer
1146 # rather than let GCC pick random things to do with it.
1147 # (If we want to steal a6, then we would try to do things
1148 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1150 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1151 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1152 # maybe gives reg alloc a better time
1153 # also: -fno-defer-pop is not sufficiently well-behaved without it
1155 } elsif ($TargetPlatform =~ /^mips-/) {
1156 # we (hope to) know how to *mangle* asm for MIPSen
1157 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1158 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1159 unshift(@CcBoth_flags, ('-static'));
1161 } elsif ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1162 # we know how to *mangle* asm for PowerPC
1163 # :-( unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1164 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1165 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1166 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1167 } elsif ($TargetPlatform =~ /^sparc-/) {
1168 # we know how to *mangle* asm for SPARC
1169 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1170 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1173 } # end of setupMachOpts
1176 Same unshifting magic, but for special linker flags.
1178 The configure script determines whether the object file symbol tables
1179 have a leading underscore, and sets @LeadingUnderscore@ accordingly.
1180 (The driver script `sees' the setting of the @LeadingUnderscore@
1181 by having the Makefile prepend it).
1185 local($uscore) = ( ${LeadingUnderscore} eq 'YES' ) ? '_' : '';
1188 (($Ld_main) ? ( '-u', "${uscore}Main_" . $Ld_main . '_closure' ) : ()));
1190 ( '-u', "${uscore}PrelBase_Z91Z93_closure" # i.e., []
1191 ,'-u', "${uscore}PrelBase_IZh_static_info"
1192 ,'-u', "${uscore}PrelBase_CZh_static_info"
1193 ,'-u', "${uscore}PrelBase_False_inregs_info"
1194 ,'-u', "${uscore}PrelBase_True_inregs_info"
1195 ,'-u', "${uscore}STBase_SZh_static_info"
1196 ,'-u', "${uscore}DEBUG_REGS"
1198 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1199 # sometimes we have lots of toc entries...
1200 # unshift(@Ld_flags, ('-Xlinker -bbigtoc -Xlinker -bnoquiet'));
1201 unshift(@Ld_flags, ('-Xlinker -bbigtoc'));
1204 } # end of setupLinkOpts
1208 %************************************************************************
1210 \subsection{Set up include paths and system-library enslurpment}
1212 %************************************************************************
1214 Now that we know what garbage-collector, etc., are required, we can
1215 finalise our list of libraries to slurp through, and generally Get
1220 # default includes must be added AFTER option processing
1221 if ( ! $INSTALLING ) {
1222 push (@Include_dir, "$TopPwd/${CURRENT_DIR}/${GHC_INCLUDE_DIR}");
1224 push (@Include_dir, "$InstLibDirGhc/includes");
1225 push (@Include_dir, "$InstLibDirGhc/includes");
1227 } # end of setupIncPaths
1232 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1235 foreach $f (@SysLibrary) {
1236 next if $f =~ /_cbits/;
1237 $f .= $BuildTag if $f =~ /^-lHS/;
1240 # fiddle the TopClosure file name...
1241 $TopClosureFile =~ s/XXXX//;
1243 # Push library HSrts, plus boring clib bit
1244 push(@SysLibrary, "-lHSrts${BuildTag}");
1245 push(@SysLibrary, '-lHSclib');
1247 # RTS compiled with cygwin32, uses the WinMM API
1248 # to implement the itimers, since cygwin.dll does not
1249 # support it. Only reqd. for `ways' that use itimers.
1251 push(@SysLibrary, '-lwinmm') if $BuildTag ne '' && $TargetPlatform eq 'i386-unknown-cygwin32';
1253 # Push the pvm libraries
1254 if ($BuildTag eq '_mp') {
1255 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1256 push(@SysLibrary, "-L$pvmlib", '-lpvm3', '-lgpvm3');
1257 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1258 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1259 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1260 push(@SysLibrary, '-lsocket', '-lnsl');
1264 # Push the GNU multi-precision arith lib; and the math library
1265 push(@SysLibrary, '-lgmp');
1266 push(@SysLibrary, '-lm');
1269 %************************************************************************
1271 \subsection{Check that this system was built to do what we are asking}
1273 %************************************************************************
1275 Before continuing we check that the appropriate build is available.
1278 #die "$Pgm: no BuildAvail?? $BuildTag\n" if $BuildDescr{$BuildTag} eq '' ; # sanity
1280 if ( $BuildDescr{$BuildTag} eq '' ) {
1281 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1282 "' \"build\" is not available with your GHC setup.\n";
1283 print STDERR "(It was not configured for it at your site.)\n";
1284 print STDERR $ShortUsage;
1288 } # end of setupSyslibs
1292 %************************************************************************
1294 \subsection{Final miscellaneous setup bits before we start going}
1296 %************************************************************************
1298 Record largest specific heapsize, if any.
1300 sub setupHeapStackSize {
1301 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1302 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1303 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1304 push(@HsC_rts_flags, "-K$Specific_stk_size");
1308 If no input or link files seen, then we let 'em feed in stdin; this is
1309 mainly for debugging.
1313 if ($#Input_file < 0 && $#Link_file < 0) {
1314 @Input_file = ( '-' );
1316 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1317 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n";
1318 while (<>) { print INF $_; }
1319 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1324 Tell the world who we are, if they asked.
1326 print STDERR "${PROJECTNAME}, version ${PROJECTVERSION}, patchlevel ${PROJECTPATCHLEVEL}\n"
1330 %************************************************************************
1332 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1334 %************************************************************************
1336 Process the input files; don't continue with linking if there are
1337 problems (global variable @$Status@ non-zero).
1339 foreach $ifile (@Input_file) {
1340 &ProcessInputFile($ifile);
1343 if ( $Status > 0 ) { # don't link if there were errors...
1344 print STDERR $ShortUsage;
1349 # append last minute flags linker and consistency flags
1356 Link if appropriate.
1359 local($libdirs) = '';
1361 # glue them together:
1362 push(@UserLibrary_dir, @SysLibrary_dir);
1364 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1366 # for a linker, use an explicitly given one, or the going C compiler ...
1367 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1369 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1370 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1372 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $TopClosureFile $libdirs @UserLibrary @SysLibrary";
1373 &run_something($to_do, 'Linker');
1375 # finally, check the consistency info in the binary
1376 local($executable) = $Files_to_tidy[0];
1377 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1380 # dynamically load consistency-chking code; then do it.
1381 require('ghc-consist.prl')
1382 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1384 &chk_consistency_info ( $executable );
1387 # if PVM parallel stuff, we do truly weird things.
1388 # Essentially: (1) move the executable over to where PVM expects
1389 # to find it. (2) create a script in place of the executable
1390 # which will cause the program to be run, via SysMan.
1391 if ( $PARing eq 'p' ) {
1392 local($pvm_executable) = $executable;
1393 local($pvm_executable_base);
1395 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1396 local($pwd) = `pwd`;
1398 $pwd =~ s/^\/tmp_mnt//;
1399 $pvm_executable = "$pwd/$pvm_executable";
1402 $pvm_executable =~ s|/|=|g; # make /s into =s
1403 $pvm_executable_base = $pvm_executable;
1405 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1406 . "/$pvm_executable";
1408 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1410 # OK, now create the magic script for "$executable"
1411 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1412 print EXEC <<EOSCRIPT1;
1413 eval 'exec perl -S \$0 \${1+"\$@"}'
1414 if \$running_under_some_shell;
1415 # =!=!=!=!=!=!=!=!=!=!=!
1416 # This script is automatically generated: DO NOT EDIT!!!
1417 # Generated by Glasgow Haskell, version ${PROJECTVERSION} ${PROJECTPATCHLEVEL}
1419 \$pvm_executable = '$pvm_executable';
1420 \$pvm_executable_base = '$pvm_executable_base';
1421 \$SysMan = '$SysMan';
1424 print EXEC <<\EOSCRIPT2;
1425 # first, some magical shortcuts to run "commands" on the binary
1427 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1429 system("$cmd $pvm_executable");
1433 # OK, really run it; process the args first
1434 $ENV{'PE'} = $pvm_executable_base;
1436 $nprocessors = 2; # the default
1440 # ToDo: handle --RTS
1441 args: while ($a = shift(@ARGV)) {
1442 if ( $a eq '+RTS' ) {
1444 } elsif ( $a eq '-RTS' ) {
1447 if ( $a eq '-d' && $in_RTS_args ) {
1449 } elsif ( $a =~ /^-N(\d+)/ && $in_RTS_args ) {
1452 push(@nonPVM_args, $a);
1456 local($return_val) = 0;
1457 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
1459 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
1462 close(EXEC) || die "Failed closing $executable\n";
1463 chmod 0755, $executable;
1467 # that... that's all, folks!
1469 exit $Status; # will still be 0 if all went well
1472 %************************************************************************
1474 \section[Driver-do-one-file]{How to process a single input file}
1476 %************************************************************************
1479 sub ProcessInputFile {
1480 local($ifile) = @_; # input file name
1481 local($ifile_root); # root of or basename of input file
1482 local($ofile_target); # ultimate output file we hope to produce
1483 # from input file (need to know for recomp
1484 # checking purposes)
1485 local($hifile_target);# ditto (but .hi file)
1488 Handle the weirdity of input from stdin.
1490 if ($ifile ne '-') {
1491 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1492 $ofile_target = # may be reset later...
1493 ($Specific_output_file ne '' && ! $Do_lnkr)
1494 ? $Specific_output_file
1495 : &odir_ify($ifile_root, 'o');
1496 $hifile_target= ($Specific_hi_file ne '')
1498 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1499 # NB: may change if $ifile_root isn't module name (??)
1501 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1502 $ifile_root = '_stdin';
1503 $ofile_target = '_stdout'; # gratuitous?
1504 $hifile_target= '_stdout'; # ditto?
1508 We need to decide what phases of the compilation system we will run
1509 over this file. The defaults are the ones established when processing
1510 flags. (That established what the last phase run for all files is.)
1512 We do the pre-recompilation-checker phases here; the rest later.
1516 Look at the suffix and decide what initial phases of compilation may
1517 be dropped off for this file. Also the rather boring business of
1518 which files are coming-in/going-out.
1520 Again, we'll do the post-recompilation-checker parts of this later.
1522 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1523 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1526 # names of the files to stuff between phases
1527 # defaults are temporaries
1528 local($in_lit2pgm) = $ifile;
1529 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1530 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1531 local($hsc_hi) = "$Tmp_prefix.hi";
1532 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1533 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1534 local($as_out) = $ofile_target;
1536 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
1538 # OK, let's strip off some literate junk..
1539 if ($ifile =~ /\.lhs$/) {
1540 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
1542 $lit2pgm_hscpp = $ifile;
1548 # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas
1549 &check_for_source_options($lit2pgm_hscpp,$ifile);
1550 # options found in the source file take a back seat, i.e., we scan
1551 # them first. Only process the command line again if source file
1552 # contained anything of interest *or* there's more than one
1553 # input file (we have to reset the options).
1555 if ( $#Input_file >= 0 || $#File_options >= 0) {
1556 #@File_options = (@File_options, @Cmd_opts);
1558 # Now process the command line
1559 &initDriverGlobals();
1560 &processArgs((@File_options,@Cmd_opts));
1561 print STDERR "\nEffective command line: " .
1562 join(' ',(@File_options,@Cmd_opts)) . "\n" if $Verbose;
1565 # Having got the effective command line scanned, set up
1566 # the various options in prep for some real work.
1568 # check the sanity of the BuildTag we're about to use,
1569 # and if needs be, add some more flags and setup to
1570 # the different phases.
1573 &setupOptimiseFlags();
1576 &setupHeapStackSize();
1579 # These two variables need to be set after the
1580 # command-line has been processed and the build options
1581 # have be seen set up. This is because command-line options
1582 # can control whether to compile vias C or not.
1584 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1586 : ( ($HscOut eq '-C=') ? 1 : 0 );
1587 local($do_as) = $Do_as;
1588 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1590 if ($Only_preprocess_hc) { # stop after having run $Cc -E
1593 if ($Only_preprocess_C) { # stop after having run $hscpp
1594 $do_hsc=0; $do_cc = 0; $do_as=0;
1595 } elsif ($ifile =~ /.lhs$/ || $ifile =~ /.hs$/ ) {
1597 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
1598 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1600 } elsif ($ifile =~ /\.c$/) {
1601 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1602 $hsc_out = $ifile; $is_hc_file = 0;
1603 } elsif ($ifile =~ /\.s$/) {
1604 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
1606 } else { # don't know what it is, but nothing to do herein...
1607 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
1610 # hack to avoid running hscpp
1611 $HsCpp = $Cat if ! $Cpp_flag_set;
1613 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) if $do_hscpp;
1617 We now think about whether to run hsc/cc or not (when hsc produces .s
1618 stuff, it effectively takes the place of both phases).
1620 To get the output file name right: for each phase that we are {\em
1621 not} going to run, set its input (i.e., the output of its preceding
1622 phase) to @"$ifile_root.<suffix>"@.
1625 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
1628 # Warning issued if -keep-hc-file-too is used without
1629 # -fvia-C (or the equivalent)
1631 if ( $HscOut ne '-C=' && $Keep_hc_file_too ) {
1632 print STDERR "$Pgm: warning: Native code generator to be used, -keep-hc-file-too will be ignored\n";
1635 if (! $do_cc && ! $do_as) { # stopping after hsc
1636 $hsc_out = ($Specific_output_file ne '')
1637 ? $Specific_output_file
1638 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
1640 $ofile_target = $hsc_out; # reset
1643 if (! $do_as) { # stopping after gcc (or hsc)
1644 $cc_as = ($Specific_output_file ne '')
1645 ? $Specific_output_file
1646 : &odir_ify($ifile_root, ( $Only_preprocess_hc ) ? 'i' : 's');
1648 $ofile_target = $cc_as; # reset
1654 Now the Haskell compiler, C compiler, and assembler
1658 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
1659 $ofile_target, $hifile_target);
1663 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
1664 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root) if ! $Only_preprocess_hc;
1667 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
1669 # save a copy of the .s file..
1670 &saveIntermediate($ifile_root , "s" , $cc_as) if ($do_as && $Keep_s_file_too);
1671 &runAs($as_out, $ifile_root) if $do_as;
1674 Finally, decide what to queue up for linker input.
1676 # tentatively assume we will eventually produce linker input:
1677 push(@Link_file, &odir_ify($ifile_root, 'o'));
1679 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
1681 if ( $ifile !~ /\.(lhs|hs|hc|c|s)$/ && $ifile !~ /_hc$/ ) {
1682 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n"
1683 if $ifile !~ /\.a$/;
1685 # oops; we tentatively pushed the wrong thing; fix & do the right thing
1686 pop(@Link_file); push(@Link_file, $ifile);
1690 } # end of ProcessInputFile
1693 %************************************************************************
1695 \section[Driver-run-phases]{Routines to run the various phases}
1697 %************************************************************************
1701 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
1703 local($to_do) = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && ".
1704 "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
1705 @Files_to_tidy = ( $lit2pgm_hscpp );
1707 &run_something($to_do, 'literate pre-processor');
1713 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
1717 if ($HsCpp eq $Cat) {
1718 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $hscpp_hsc && ".
1719 "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
1720 @Files_to_tidy = ( $hscpp_hsc );
1721 &run_something($to_do, 'Ineffective C pre-processor');
1723 local($includes) = '-I' . join(' -I',@Include_dir);
1724 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $hscpp_hsc && ".
1725 "$HsCpp $Verbose $genSPECS_flag @HsCpp_flags -D__HASKELL1__=$Haskell1Version -D__GLASGOW_HASKELL__=$GhcVersionInfo $includes $lit2pgm_hscpp >> $hscpp_hsc";
1726 @Files_to_tidy = ( $hscpp_hsc );
1727 &run_something($to_do, 'Haskellised C pre-processor');
1730 if ( $Only_preprocess_C ) {
1731 $to_do = "$Cat $hscpp_hsc";
1732 &run_something($to_do, '');
1740 sub runHscAndProcessInterfaces {
1741 local($ifile, $hscpp_hsc, $ifile_root, $ofile_target, $hifile_target) = @_;
1743 # $ifile is the original input file
1744 # $hscpp_hsc post-unlit, post-cpp, etc., input file
1745 # $ifile_root input filename minus suffix
1746 # $ofile_target the output file that we ultimately hope to produce
1747 # $hifile_target the .hi file ... (ditto)
1749 local($source_unchanged) = 1;
1751 # Check if the source file is up to date relative to the target; in
1752 # that case we say "source is unchanged" and let the compiler bail out
1753 # early if the import usage information allows it.
1755 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
1756 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
1758 # The informational messages below are now conditional on -v being set -- SOF
1759 if ( ! -f $ofile_target ) {
1760 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n" if $Verbose;
1761 $source_unchanged = 0;
1764 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
1765 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
1767 if ( ! -f $hifile_target ) {
1768 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n" if $Verbose;
1769 $source_unchanged = 0;
1772 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
1773 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
1775 if ($i_mtime > $o_mtime) {
1776 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n" if $Verbose;
1777 $source_unchanged = 0;
1780 # So if source_unchanged is still "1", we pass on the good news to the compiler
1781 # The -recomp flag can disable this, forcing recompilation
1782 if ($Do_recomp_chkr && $source_unchanged) {
1783 push(@HsC_flags, '-fsource-unchanged');
1788 &runHsc($ifile_root, $hsc_out, $hsc_hi, $going_interactive);
1790 # See if it bailed out early, saying nothing needed doing.
1791 # We work this out by seeing if it created an output .hi file
1793 if ( ! -f $hsc_hi && $ProduceHi !~ /-nohifile=/ ) {
1794 # Doesn't exist, so we bailed out early.
1795 # Tell the C compiler and assembler not to run
1796 $do_cc = 0; $do_as = 0;
1798 # Update dependency info, touch both object file and
1799 # interface file, so that the following invariant is
1802 # a dependent module's interface file should after recompilation
1803 # checking be newer than the interface files of its imports.
1805 # That is, if module A's interface file changes, then module B
1806 # (which import from A) needs to be checked.
1807 # If A's change does not affect B, which causes the compiler to bail
1808 # out early, we still need to touch the interface file of B. The reason
1809 # for this is that B may export A's interface.
1811 &run_something("touch $ofile_target",
1812 "Touch $ofile_target, to propagate dependencies") if $HscOut ne '-N=';
1813 &run_something("touch $hifile_target",
1814 "Touch $hifile_target, to propagate dependencies") if $ProduceHi =~ /-nohifile=/ ;
1818 # Didn't bail out early (new .hi file) so we thunder on
1820 # If non-interactive, heave in the consistency info at the end
1821 # NB: pretty hackish (depends on how $output is set)
1822 if ( ! $going_interactive ) {
1823 if ( $HscOut eq '-C=' ) {
1824 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
1826 } elsif ( $HscOut eq '-S=' ) {
1827 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
1828 $consist =~ s/,/./g;
1829 $consist =~ s/\//./g;
1830 $consist =~ s/-/_/g;
1831 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
1832 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
1834 &run_something($to_do, 'Pin on Haskell consistency info');
1838 # Interface-handling is important enough to live off by itself
1839 if ( $ProduceHi !~ /-nohifile=/ ) { # If we've produced one, process it.
1840 require('ghc-iface.prl') || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
1841 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
1843 # if we're going to split up object files,
1844 # we inject split markers into the .hc file now
1845 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
1846 &inject_split_markers ( $hsc_out );
1849 # save a copy of the .hc file, even if we are carrying on...
1850 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
1851 &saveIntermediate($ifile_root , "hc" , $hsc_out);
1861 local($ifile_root, $hsc_out, $hsc_hi, $going_interactive) = @_;
1863 # prepend comma to HsP flags (so hsc can tell them apart...)
1864 foreach $a ( @HsP_flags ) { $a = ",$a" unless $a =~ /^,/; }
1866 &makeHiMap() unless $HiMapDone;
1867 #print STDERR "HiIncludes: $HiIncludeString\n";
1868 push(@HsC_flags, "-himap=$HiIncludeString");
1870 # here, we may produce .hc/.s and/or .hi files
1871 local($output) = '';
1872 @Files_to_tidy = ();
1874 if ( $going_interactive ) {
1875 # don't need .hi unless going to show it on stdout:
1876 $ProduceHi = '-nohifile=' if ! $HiOnStdout;
1877 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
1880 # set up for producing output/.hi; note that flag twiddling
1881 # may mean that nothing will actually be produced:
1882 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out";
1883 @Files_to_tidy = ( $hsc_hi, $hsc_out );
1885 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
1886 if ( $CollectingGCstats ) {
1887 push(@HsC_rts_flags, "-S$ifile_root.stat");
1888 push(@Files_to_tidy, "$ifile_root.stat");
1891 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
1892 # emit nofibbish time/bytes-alloc stats to stderr;
1893 # see later .stat file post-processing
1894 print STDERR "warning: both -Rgc-stats and -Rghc-timing used, -Rghc-timing wins." if $CollectingGCstats;
1895 push(@HsC_rts_flags, "-s$Tmp_prefix.stat");
1896 push(@Files_to_tidy, "$Tmp_prefix.stat");
1900 if ($Specific_dump_file ne '') {
1901 $dump = "2>> $Specific_dump_file";
1902 $Using_dump_file = 1;
1906 $to_do = "$HsC @HsP_flags ,$hscpp_hsc $dump @HsC_flags $CoreLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
1907 &run_something($to_do, 'Haskell compiler');
1909 # finish business w/ nofibbish time/bytes-alloc stats
1910 &process_ghc_timings() if $CollectGhcTimings;
1914 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
1915 of (module-name, pathname) pairs, one per line, separated by a space.
1918 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1922 # collect in %HiMap; write later; also used elsewhere in driver
1924 local($mod, $path, $d, $e);
1926 # reset the global variables:
1928 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1930 foreach $d ( @Import_dir ) {
1931 if ($HiIncludeString) {
1932 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix}";
1934 $HiIncludeString = "$d%.${HiSuffix}";
1939 foreach $d ( @SysImport_dir ) {
1940 if ($HiIncludeString) {
1941 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix_prelude}";
1943 $HiIncludeString = "${d}%.${HiSuffix_prelude}";
1952 %************************************************************************
1954 \section[Driver-misc-utils]{Miscellaneous utilities}
1956 %************************************************************************
1958 %************************************************************************
1960 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
1962 %************************************************************************
1966 local($ofile,$def_suffix) = @_;
1968 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
1972 local($orig_file, $def_suffix) = @_;
1973 if ($Specific_output_dir eq '') { # do nothing
1974 &osuf_ify($orig_file, $def_suffix);
1976 local ($orig_file_only);
1977 ($orig_file_only = $orig_file) =~ s|.*/||;
1978 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
1985 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
1987 local($includes) = '-I' . join(' -I', @Include_dir);
1990 local($c_flags) = "@CcBoth_flags";
1991 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
1993 # "input" files to use that are not in some weird directory;
1994 # to help C compilers grok .hc files [ToDo: de-hackify]
1995 local($cc_help) = "ghc$$.c";
1996 local($cc_help_s) = "ghc$$.s";
1999 $s_output = ($is_hc_file || $TargetPlatform =~ /^(powerpc|rs6000|hppa|i386)/) ? $cc_as_o : $cc_as;
2000 $c_flags .= " @CcRegd_flags";
2001 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2003 # C compiler won't like the .hc extension. So we create
2004 # a tmp .c file which #include's the needful.
2005 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2006 if ( $is_hc_file ) {
2008 #ifdef __STG_GCC_REGS__
2009 # if ! (defined(MAIN_REG_MAP) || defined(MARK_REG_MAP) || defined(SCAN_REG_MAP) || defined(SCAV_REG_MAP) || defined(FLUSH_REG_MAP))
2010 # define MAIN_REG_MAP
2013 #include "stgdefs.h"
2015 # user may have asked for #includes to be injected...
2016 print TMP @CcInjects if $#CcInjects >= 0;
2018 # heave in the consistency info
2019 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2021 # and #include the real source
2022 print TMP "#include \"$hsc_out\"\n";
2023 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2025 # Don't redirect stderr into intermediate file if slamming output onto stdout (e.g., with -E)
2026 local($fuse_stderr) = "2>&1" if ! $Only_preprocess_hc;
2027 local($to_do) = "$cc $Verbose $ddebug_flag $c_flags @Cpp_define -D__HASKELL1__=$Haskell1Version $includes $cc_help > $Tmp_prefix.ccout $fuse_stderr && ( if [ $cc_help_s != $s_output ] ; then mv $cc_help_s $s_output ; else exit 0 ; fi )";
2028 # note: __GLASGOW_HASKELL__ is pointedly *not* #defined at the C level.
2030 if ( $Only_preprocess_hc ) { # HACK ALERT!
2031 $to_do =~ s/ -S\b//g;
2033 @Files_to_tidy = ( $cc_help, $cc_help_s, $s_output );
2034 $PostprocessCcOutput = 1 if ! $Only_preprocess_hc; # hack, dear hack...
2035 &run_something($to_do, 'C compiler');
2036 $PostprocessCcOutput = 0;
2037 if ( $Only_preprocess_hc ) {
2038 system("$Cat $Tmp_prefix.ccout");
2040 unlink($cc_help, $cc_help_s);
2046 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2048 if ( $is_hc_file ) {
2049 # dynamically load assembler-fiddling code, which we are about to use:
2050 require('ghc-asm.prl')
2051 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2054 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2057 # post-process the assembler [.hc files only]
2058 &mangle_asm($cc_as_o, $cc_as);
2062 #OLD: local($target) = 'oops';
2063 #OLD: $target = '-alpha' if $TargetPlatform =~ /^alpha-/;
2064 #OLD: $target = '-hppa' if $TargetPlatform =~ /^hppa/;
2065 #OLD: $target = '-old-asm' if $TargetPlatform =~ /^i386-/;
2066 #OLD: $target = '-m68k' if $TargetPlatform =~ /^m68k-/;
2067 #OLD: $target = '-mips' if $TargetPlatform =~ /^mips-/;
2068 #OLD: $target = '' if $TargetPlatform =~ /^powerpc-/;
2069 #OLD: $target = '-solaris' if $TargetPlatform =~ /^sparc-sun-solaris2/;
2070 #OLD: $target = '-sparc' if $TargetPlatform =~ /^sparc-sun-sunos4/;
2072 #OLD: if ( $target ne '' ) {
2073 #OLD: require("ghc-asm$target.prl")
2074 #OLD: || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm$target.prl!\n");
2075 #OLD: &mangle_asm($cc_as_o, "$cc_as-2"); # the OLD one!
2076 #OLD: &run_something("$Cmp -s $cc_as-2 $cc_as || $Diff $cc_as-2 $cc_as 1>&2 || exit 0",
2077 #OLD: "Diff'ing old and new mangled .s files"); # NB: to stderr
2080 } elsif ($TargetPlatform =~ /^hppa/) {
2081 # minor mangling of non-threaded files for hp-pa only
2082 require('ghc-asm.prl')
2083 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2084 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2086 } elsif ($TargetPlatform =~ /^powerpc|^rs6000/) {
2087 # minor mangling of non-threaded files for powerpcs and rs6000s
2088 require('ghc-asm.prl')
2089 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-powerpc.prl!\n");
2090 &mini_mangle_asm_powerpc($cc_as_o, $cc_as);
2091 } elsif ($TargetPlatform =~ /^i386/) {
2092 # extremely-minor OFFENSIVE mangling of non-threaded just one file
2093 require('ghc-asm.prl')
2094 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2095 &mini_mangle_asm_i386($cc_as_o, $cc_as);
2098 # save a copy of the .s file, even if we are carrying on...
2099 #if ($do_as && $Keep_s_file_too) {
2100 # &saveIntermediate($ifile_root , "s" , $cc_as);
2107 local($as_out, $ifile_root) = @_;
2109 local($asmblr) = ( $As ) ? $As : $CcRegd;
2111 if ( ! $SplitObjFiles ) {
2112 local($to_do) = "$asmblr -o $as_out -c @As_flags $cc_as";
2113 @Files_to_tidy = ( $as_out );
2114 &run_something($to_do, 'Unix assembler');
2116 } else { # more complicated split-ification...
2118 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2120 # If -odir is used, great, just pin it in front of the
2121 # generated split file names. If it hasn't been set, we
2122 # snatch it from the ifile_root.
2126 if ( $Specific_output_dir eq '' ) {
2127 $Specific_output_dir = ${ifile_root};
2130 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2131 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2132 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2133 @Files_to_tidy = ( $split_out );
2135 &run_something($to_do, 'Unix assembler');
2141 %************************************************************************
2143 \subsection[Driver-run-something]{@run_something@: Run a phase}
2145 %************************************************************************
2149 local($str_to_do, $tidy_name) = @_;
2151 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2152 print STDERR "$str_to_do\n" if $Verbose;
2154 if ($Using_dump_file) {
2155 open(DUMP, ">> $Specific_dump_file")
2156 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2157 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2159 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2162 local($return_val) = 0;
2164 if ( length($str_to_do) > 4000) {
2165 # 4000 - on the random side, just like the *real* ARG_MAX
2168 # With some shells, command lines of this length may
2169 # very well cause trouble. To safeguard against this, we squirrel the
2170 # command into a file and exec that.
2171 local ($sh) = $ENV{'REAL_SHELL'};
2172 print STDERR "Backup plan A: saving cmd line in ${Tmp_prefix}.sh and executing that with $sh\n" if $Verbose;
2173 open (TEMP, "> ${Tmp_prefix}.sh") ||
2174 &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.sh'\n");
2175 print TEMP "$Time $str_to_do\n";
2177 &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.sh'\n");
2178 system("$sh $Tmp_prefix.sh");
2181 unlink "${Tmp_prefix}.sh";
2183 system("$Time $str_to_do");
2187 if ( $PostprocessCcOutput ) { # hack, continued
2188 open(CCOUT, "< $Tmp_prefix.ccout")
2189 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2191 next if /attribute directive ignored/;
2192 next if /call-clobbered/;
2193 next if /from .*COptRegs\.lh/;
2194 next if /from .*(stg|rts)defs\.h:/;
2195 next if /from ghc\d+.c:\d+:/;
2196 next if /from .*\.lc/;
2197 next if /from .*SMinternal\.l?h/;
2198 next if /ANSI C does not support \`long long\'/;
2199 next if /warning:.*was declared \`extern\' and later \`static\'/;
2200 next if /warning: assignment discards \`const\' from pointer target type/;
2201 next if /: At top level:$/;
2202 next if /: In function \`.*\':$/;
2203 next if /\`ghc_cc_ID\' defined but not used/;
2206 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2209 if ($return_val != 0) {
2210 if ($Using_dump_file) {
2211 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2214 &tidy_up_and_die($return_val, '');
2216 $Using_dump_file = 0;
2220 %************************************************************************
2222 \subsection[Driver-ghc-timing]{Emit nofibbish GHC timings}
2224 %************************************************************************
2226 NB: nearly the same as in @runstdtest@ script.
2229 sub process_ghc_timings {
2230 local($StatsFile) = "$Tmp_prefix.stat";
2231 local($SysSpecificTiming) = 'ghc';
2233 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2234 local($max_live) = 0;
2235 local($tot_live) = 0; # for calculating residency stuff
2236 local($tot_samples) = 0;
2239 if (! /Minor/ && /^\s*\d+\s+\d+\s+(\d+)\s+\d+\.\d+\%/ ) {
2240 $max_live = $1 if $max_live < $1;
2244 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2246 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2247 $MaxResidency = $1; $ResidencySamples = $2;
2250 $GCs = $1 if /^\s*([0-9,]+) garbage collections? performed/;
2252 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2253 $InitTime = $1; $InitElapsed = $2;
2254 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2255 $MutTime = $1; $MutElapsed = $2;
2256 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2257 $GcTime = $1; $GcElapsed = $2;
2260 close(STATS) || die "Failed when closing $StatsFile\n";
2261 if ( $tot_samples > 0 ) {
2262 $ResidencySamples = $tot_samples;
2263 $MaxResidency = $max_live;
2264 $AvgResidency = int ($tot_live / $tot_samples) ;
2267 # warn about what we didn't find
2268 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2269 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2270 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2271 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2272 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2273 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2274 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2275 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2277 # things we didn't necessarily expect to find
2278 $MaxResidency = 0 unless defined($MaxResidency);
2279 $AvgResidency = 0 unless defined($AvgResidency);
2280 $ResidencySamples = 0 unless defined($ResidencySamples);
2283 $BytesAlloc =~ s/,//g;
2284 $MaxResidency =~ s/,//g;
2286 $InitTime =~ s/,//g;
2287 $InitElapsed =~ s/,//g;
2289 $MutElapsed =~ s/,//g;
2291 $GcElapsed =~ s/,//g;
2293 # print out what we found
2294 print STDERR "<<$SysSpecificTiming: ",
2295 "$BytesAlloc bytes, $GCs GCs, $AvgResidency/$MaxResidency avg/max bytes residency ($ResidencySamples samples), $InitTime INIT ($InitElapsed elapsed), $MutTime MUT ($MutElapsed elapsed), $GcTime GC ($GcElapsed elapsed)",
2296 " :$SysSpecificTiming>>\n";
2303 %************************************************************************
2305 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2307 %************************************************************************
2311 local($to_do) = "\n$Rm $Tmp_prefix*";
2312 if ( $Tmp_prefix !~ /^\s*$/ ) {
2313 print STDERR "$to_do\n" if $Verbose;
2318 sub tidy_up_and_die {
2319 local($return_val, $msg) = @_;
2321 # delete any files to tidy
2322 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2323 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2327 exit (($return_val == 0) ? 0 : 1);
2331 %************************************************************************
2333 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2335 %************************************************************************
2337 Some command-line arguments take an argument, e.g.,
2338 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2339 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2340 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2342 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2343 gobble the second argument (and probably set the heapsize to something
2347 local(*Args, $option, $rest_of_arg) = @_;
2349 if ($rest_of_arg ne '') {
2350 return($rest_of_arg);
2351 } elsif ($#Args >= 0) {
2352 local($temp) = $Args[0]; shift(@Args);
2355 print STDERR "$Pgm: no argument following $option option\n";
2366 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2368 foreach $f ( @HsC_antiflags ) {
2369 return(0) if $flag eq $f;
2371 # foreach $f ( @HsC_flags ) {
2372 # return(0) if $flag eq $f;
2377 sub squashHscFlag { # pretty terrible
2381 foreach $f ( @HsC_flags ) {
2382 if ($flag eq $f) { $f = ''; }
2390 foreach $f ( @flags ) {
2391 push( @HsC_flags, $f ) if &isntAntiFlag($f);
2396 Source files may have {-# OPTIONS ... #-} pragmas at the top, containing
2397 command line options we want to append to collection of commands specified
2398 directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell
2399 file for any such pragmas:
2402 sub check_for_source_options {
2403 local($file,$ifile) = @_;
2404 local($comment_start,$comment_end);
2406 if ($ifile =~ /\.hc$/ ||
2409 $ifile =~ /_s$/ ) { # `Real' C intermediate
2410 $comment_start = "/\\*";
2411 $comment_end = "\\*/";
2412 } else { # Assume it is a file containing Haskell source
2413 $comment_start = "{-#";
2414 $comment_end = "#-}";
2417 open(FILE,$file) || return(1); # No big loss
2420 if ( /^${comment_start} OPTIONS (.*)${comment_end}$/ ) {
2421 # add the options found at the back of the command line.
2422 local(@entries) = split(/\s+/,$1);
2423 print STDERR "Found OPTIONS " . join(' ',@entries) . " in $file\n" if $Verbose;
2424 push(@File_options, @entries);
2426 elsif ( /^$/ ) { # ignore empty lines
2429 elsif ( /^#line.+$/ ) { # ignore comment lines
2432 else { # stop looking, something non-empty / not
2433 # ${comment_start} OPTIONS .. ${comment_end} encountered.
2434 close(FILE);return(0);
2443 We split the initial argv up into three arrays:
2449 the reason for doing so is to be able to deal
2450 with {-# OPTIONS #-} pragma in source files properly.
2456 arg: while($_ = $args[0]) {
2458 # sigh, we have to deal with these -option arg specially here.
2459 /^-(tmpdir|odir|ohi|o|isuf|osuf|hisuf|hisuf-prelude|odump|syslib)$/ &&
2460 do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; };
2461 /^--?./ && do { push(@Cmd_opts, $_); next arg; };
2464 push(@Link_file, $_);
2466 push(@Input_file, $_);
2469 # input files must exist:
2471 print STDERR "$Pgm: input file doesn't exist: $_\n";
2479 When saving an intermediate file (.hc or .s) away, we
2480 have to prefix any OPTIONS found in the original source file.
2483 sub saveIntermediate {
2484 local ($final,$suffix,$tmp)= @_ ;
2487 # $final -- root of where to park ${final}.${suffix}
2488 # $tmp -- temporary file where hsc put the intermediate file.
2490 # Delete the old file
2491 $to_do = "$Rm ${final}.${suffix}"; &run_something($to_do, "Removing old .${suffix} file");
2493 if ( $#File_options >= 0 ) { # OPTIONS found in Haskell source unit
2494 # Add OPTION comment to the top of the generated .${suffix} file
2495 open(TEMP, "> ${final}.${suffix}") || &tidy_up_and_die(1,"Can't open ${final}.${suffix}\n");
2496 print TEMP "/* OPTIONS " . join(' ',@File_options) . " */\n";
2498 print STDERR "Prepending OPTIONS: " . join(' ',@File_options) . " to ${final}.${suffix}\n" if $Verbose;
2500 $to_do = "$Cat $tmp >> ${final}.${suffix}";
2501 &run_something($to_do, "Saving copy of .${suffix} file");
2508 Command-line processor
2514 # can't use getopt(s); what we want is too complicated
2516 arg: while($_ = $Args[0]) {
2519 #---------- help -------------------------------------------------------
2520 if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; }
2522 #-----------version ----------------------------------------------------
2523 /^--version$/ && do { print STDERR "${PROJECTNAME}, version ${PROJECTVERSION}, patchlevel ${PROJECTPATCHLEVEL}\n"; exit $Status; };
2525 #---------- verbosity and such -----------------------------------------
2526 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
2528 #---------- what phases are to be run ----------------------------------
2529 /^-recomp/ && do { $Do_recomp_chkr = 1; next arg; };
2531 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
2532 # change the global default:
2533 # we won't run cat; we'll run the real thing
2535 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
2537 # stop after generating C
2539 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
2540 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
2542 # leave out actual C generation (debugging) [also turns off interface gen]
2544 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
2545 # _do_ generate an interface; usually used as: -noC -hi
2547 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
2548 # don't generate an interface (even if generating C)
2550 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
2551 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
2552 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
2553 /^-keep-hi-diffs$/ && do { $Keep_HiDiffs = 1; next arg; };
2555 # show/disable diffs if the interface file changes
2557 /^-E$/ && do { push(@CcBoth_flags, '-E');
2558 $Only_preprocess_C = 1;
2559 $Do_as = 0; $Do_lnkr = 0; next arg; };
2560 # stop after preprocessing C
2561 /^-M$/ && do { $Only_generate_deps = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2562 # only generate dependency information.
2563 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
2564 # stop after generating assembler
2566 /^-c$/ && do { $Do_lnkr = 0; next arg; };
2567 # stop after generating .o files
2569 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
2570 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
2571 # don't do consistency-checking after a link
2573 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', '');
2574 $Tmp_prefix = "$Tmp_prefix/ghc$$";
2575 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
2577 # use an alternate directory for temp files
2579 #---------- redirect output --------------------------------------------
2581 # -o <file>; applies to the last phase, whatever it is
2582 # "-o -" sends it to stdout
2583 # if <file> has a directory component, that dir must already exist
2585 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', '');
2587 # Hack, of the worst sort: don't do validation of
2588 # odir argument if you're using -M (dependency generation).
2590 if ( ! $Only_generate_deps && ! -d $Specific_output_dir) {
2591 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
2596 /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', '');
2597 if ($Specific_output_file ne '-'
2598 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
2599 local($dir_part) = $1;
2600 if (! -d $dir_part) {
2601 print STDERR "$Pgm: no such directory: $dir_part\n";
2607 # NB: -isuf not documented yet (because it doesn't work yet)
2608 /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', '');
2609 if ($Isuffix =~ /\./ ) {
2610 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
2615 /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', '');
2616 if ($Osuffix =~ /\./ ) {
2617 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
2622 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
2623 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', '');
2624 if ($Specific_hi_file ne '-'
2625 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
2626 local($dir_part) = $1;
2627 if (! -d $dir_part) {
2628 print STDERR "$Pgm: no such directory: $dir_part\n";
2634 # The suffix to use when looking for interface files
2635 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', '');
2636 if ($HiSuffix =~ /\./ ) {
2637 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
2641 # ToDo: remove, not a `normal' user thing to do (should be automatic)
2642 /^-hisuf-prelude$/ && do { $HiSuffix_prelude = &grab_arg_arg(*Args,'-hisuf-prelude', '');
2643 if ($HiSuffix =~ /\./ ) {
2644 print STDERR "$Pgm: -hisuf-prelude suffix shouldn't contain a .\n";
2648 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', '');
2649 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
2650 local($dir_part) = $1;
2651 if (! -d $dir_part) {
2652 print STDERR "$Pgm: no such directory: $dir_part\n";
2658 #-------------- scc & Profiling Stuff ----------------------------------
2660 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
2663 # generate auto SCCs on top level bindings
2664 # -auto-all = all top level bindings
2665 # -auto = only top level exported bindings
2666 $PROFauto = ( /-all/ )
2667 ? '-fauto-sccs-on-all-toplevs'
2668 : '-fauto-sccs-on-exported-toplevs';
2671 /^-caf-all/ && do { # generate individual CAF SCC annotations
2672 $PROFcaf = '-fauto-sccs-on-individual-cafs';
2675 /^-ignore-scc$/ && do {
2676 # forces ignore of scc annotations even if profiling
2677 $PROFignore_scc = '-W';
2680 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
2683 /^-unprof-scc-auto/ && do {
2684 # generate auto SCCs on top level bindings when not profiling.
2685 # Used to measure optimisation effects of presence of sccs.
2686 $UNPROFscc_auto = ( /-all/ )
2687 ? '-fauto-sccs-on-all-toplevs'
2688 : '-fauto-sccs-on-exported-toplevs';
2691 #--------- ticky/concurrent/parallel -----------------------------------
2692 # we sort out the details a bit later on
2694 /^-concurrent$/ && do { $CONCURing = 'c'; next arg; }; # concurrent Haskell
2695 /^-gransim$/ && do { $GRANing = 'g'; next arg; }; # GranSim
2696 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
2697 /^-parallel$/ && do { $PARing = 'p'; next arg; }; # parallel Haskell
2699 #-------------- "user ways" --------------------------------------------
2701 (/^-user-setup-([a-oA-Z])$/ ) &&
2703 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
2705 local($stuff) = $UserSetupOpts{$BuildTag};
2706 local(@opts) = split(/\s+/, $stuff);
2708 # feed relevant ops into the arg-processing loop (if any)
2709 unshift(@Args, @opts) if $#opts >= 0;
2713 #---------- set search paths for libraries and things ------------------
2715 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
2716 # prepends the items to the list); -I is for including C .h files.
2718 /^-i$/ && do { @Import_dir = (); # import path cleared!
2719 @SysImport_dir = ();
2720 print STDERR "WARNING: import paths cleared by `-i'\n";
2723 /^-i(.*)/ && do { local(@new_items)
2724 = split( /:/, &grab_arg_arg(*Args,'-i', $1));
2725 unshift(@Import_dir, @new_items);
2728 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; };
2729 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; };
2730 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; };
2732 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1);
2733 print STDERR "$Pgm: no such system library (-syslib): $syslib\n",
2734 $Status++ unless $syslib =~ /^(hbc|ghc|posix|contrib)$/;
2736 unshift(@SysImport_dir,
2738 ? "$InstSysLibDir/$syslib/imports"
2739 : "$TopPwd/hslibs/$syslib/src");
2741 if ( ${INSTALLING} ) {
2742 push(@SysLibrary_dir,
2743 ("$InstSysLibDir"));
2745 push(@SysLibrary_dir,
2746 ("$TopPwd/hslibs/$syslib"
2747 ,"$TopPwd/hslibs/$syslib/cbits"));
2750 push(@SysLibrary, "-lHS$syslib");
2751 push(@SysLibrary, "-lHS${syslib}_cbits")
2752 unless $syslib eq 'contrib'; #HACK! it has no cbits
2756 #=======================================================================
2757 # various flags that we can harmlessly send to one program or another
2758 # (we will later "reclaim" some of the compiler ones now sent to gcc)
2759 #=======================================================================
2761 #---------- this driver itself (ghc) -----------------------------------
2762 # these change what executable is run for each phase:
2763 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
2764 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
2765 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
2766 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
2767 /^-pgma(.*)$/ && do { $As = $1; next arg; };
2768 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
2769 /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; };
2771 #---------- the get-anything-through opts (all pgms) -------------------
2772 # these allow arbitrary option-strings to go to any phase:
2773 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
2774 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
2775 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
2776 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
2777 /^-optcpp(.*)$/ && do { push(@Cpp_define, $1); $Only_preprocess_hc = ($1 eq "-E"); next arg; };
2778 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
2779 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
2780 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
2781 /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; };
2783 #---------- Haskell C pre-processor (hscpp) ----------------------------
2784 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; };
2785 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; };
2787 /^-genSPECS/ && do { $Cpp_flag_set = 1;
2788 $genSPECS_flag = $_;
2791 #---------- post-Haskell "assembler"------------------------------------
2792 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
2793 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
2795 #---------- Haskell compiler (hsc) -------------------------------------
2797 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
2798 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
2800 /^-fhaskell-1\.3$/ && do { next arg; }; # a no-op right now
2802 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
2804 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
2805 # don't do stack checking using page fault `trick'.
2807 /^-fstack-check$/ && do { $StkChkByPageFaultOK = 0; next arg; };
2809 # have the compiler proper generate concurrent code,
2810 # really only used when you want to configure your own
2811 # special user compilation way. (Use -concurrent when
2812 # compiling `Concurrent Haskell' programs).
2814 # (ditto for -fgransim, fscc-profiling and -fticky-ticky)
2816 /^-fconcurrent$/ && do { push(@HsC_flags,$_); next arg; };
2817 /^-fscc-profiling$/ && do { push(@HsC_flags,$_); next arg; };
2818 /^-fticky-ticky$/ && do { push(@HsC_flags,$_); next arg; };
2819 /^-fgransim$/ && do { push(@HsC_flags,$_); next arg; };
2821 /^-user-prelude-force/ && do { # ignore if not -user-prelude
2824 /^-split-objs/ && do {
2825 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|rs6000|sparc)-/ ) {
2827 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
2832 push(@HsC_flags, "-fglobalise-toplev-names");
2833 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
2835 require('ghc-split.prl')
2836 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
2841 && do { push(@HsC_flags, $_);
2842 push(@HsP_flags, '-N');
2844 # push(@HsC_flags, '-fshow-import-specs');
2848 /^-fspeciali[sz]e-unboxed$/
2849 && do { $Oopt_DoSpecialise = '-fspecialise';
2850 $Oopt_SpecialiseUnboxed = '-fspecialise-unboxed';
2853 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
2854 /^-fno-speciali[sz]e$/
2855 && do { $Oopt_DoSpecialise = ''; next arg; };
2858 # Now the foldr/build options, which are *on* by default (for -O).
2861 && do { $Oopt_FoldrBuild = 1;
2862 $Oopt_FB_Support = '-fdo-arity-expand';
2866 /^-fno-foldr-build$/
2867 && do { $Oopt_FoldrBuild = 0;
2868 $Oopt_FB_Support = '';
2871 /^-fno-foldr-build-rule$/
2872 && do { $Oopt_FoldrBuild = 0;
2875 /^-fno-enable-tech$/
2876 && do { $Oopt_FB_Support = '';
2879 /^-fno-snapback-to-append$/
2880 && do { $Oopt_FoldrBuildInline .= ' -fdo-not-fold-back-append ';
2883 # --------------- Renamer -------------
2886 /^-fno-prune-tydecls$/ && do { push(@HsC_flags, $_); next arg; };
2887 /^-fno-prune-instdecls$/ && do { push(@HsC_flags, $_); next arg; };
2891 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
2892 /^-fvia-[cC]$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
2896 /^(-funfolding-use-threshold)(.*)$/
2897 && do { $Oopt_UnfoldingUseThreshold = $1 . &grab_arg_arg(*Args,$1, $2);
2900 /^(-fmax-simplifier-iterations)(.*)$/
2901 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2);
2903 /^(-fshow-simplifier-progress)/
2904 && do { $Oopt_ShowSimplifierProgress = $1;
2907 /^-fno-pedantic-bottoms$/
2908 && do { $Oopt_PedanticBottoms = ''; next arg; };
2910 /^-fdo-monad-eta-expansion$/
2911 && do { $Oopt_MonadEtaExpansion = $_; next arg; };
2913 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
2914 && do { push(@HsC_flags, $_); next arg; };
2916 /^(-freturn-in-regs-threshold)(.*)$/
2917 && do { local($what) = $1;
2918 local($num) = &grab_arg_arg(*Args,$what, $2);
2919 if ($num < 2 || $num > 8) {
2920 die "Bad experimental flag: $_\n";
2922 $HscOut = '-C='; # force using C compiler
2923 push(@HsC_flags, "$what$num");
2924 push(@CcRegd_flags, "-D__STG_REGS_AVAIL__=$num");
2928 # --------------- Warnings etc. ------
2930 /^-fshow-import-specs/
2931 && do { push(@HsC_flags, $_); next arg; };
2933 # for now, just -fwarn-name-shadowing
2934 /^-fwarn-(.*)$/ && do { push(@HsC_flags, $_); next arg; };
2936 /^-fno-warn-(.*)$/ && do { push(@HsC_flags, "-fno-warn-$1"); next arg; };
2938 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
2939 &squashHscFlag("-f$1");
2942 # --------------- platform specific flags (for gcc mostly) ----------------
2944 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes,
2945 # for 2.6.x..?, does not apply for 2.7.2
2947 unshift(@CcBoth_flags, ( $_ ));
2950 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
2951 && do { # for GCC for SPARCs
2952 unshift(@CcBoth_flags, ( $_ ));
2955 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
2956 $StolenX86Regs = $1;
2959 #*************** ... and lots of debugging ones (form: -d* )
2961 # -d(no-)core-lint is done this way so it is turn-off-able.
2962 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
2963 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
2964 # Ditto for STG lint
2965 /^-dstg-lint/ && do { $StgLint = '-dstg-lint'; next arg; };
2966 /^-dno-stg-lint/ && do { $StgLint = ''; next arg; };
2968 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
2969 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
2970 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
2971 /^-dshow-rn-stats/ && do { push(@HsC_flags, $_); next arg; };
2972 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
2973 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
2974 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
2975 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
2977 #*************** ... and now all these -R* ones for its runtime system...
2979 /^-Rscale-sizes?(.*)/ && do {
2980 $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1);
2983 /^(-H|-Rmax-heapsize)(.*)/ && do {
2984 local($heap_size) = &grab_arg_arg(*Args,$1, $2);
2985 if ($heap_size =~ /(\d+)[Kk]$/) {
2986 $heap_size = $1 * 1000;
2987 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
2988 $heap_size = $1 * 1000 * 1000;
2989 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
2990 $heap_size = $1 * 1000 * 1000 * 1000;
2992 if ($heap_size <= 0) {
2993 print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n";
2994 $Specific_heap_size = 0;
2996 # if several heap sizes given, take the largest...
2997 } elsif ($heap_size >= $Specific_heap_size) {
2998 $Specific_heap_size = $heap_size;
3000 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n";
3004 /^-(K|Rmax-(stk|stack)size)(.*)/ && do {
3006 local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3);
3007 if ($stk_size =~ /(\d+)[Kk]$/) {
3008 $stk_size = $1 * 1000;
3009 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
3010 $stk_size = $1 * 1000 * 1000;
3011 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
3012 $stk_size = $1 * 1000 * 1000 * 1000;
3014 if ($stk_size <= 0) {
3015 print STDERR "$Pgm: resetting stack-size to zero!!! $stk_size\n";
3016 $Specific_stk_size = 0;
3018 # if several stack sizes given, take the largest...
3019 } elsif ($stk_size >= $Specific_stk_size) {
3020 $Specific_stk_size = $stk_size;
3022 print STDERR "$Pgm: ignoring stack-size-setting option ($flag $stk_size)...not the largest seen\n";
3026 /^-Rgc-stats$/ && do { $CollectingGCstats++;
3027 # the two RTSs do this diff ways; we will try to compensate
3030 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
3032 #---------- C high-level assembler (gcc) -------------------------------
3033 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
3035 # -dgcc-lint is a useful way of making GCC very fussy.
3036 # From alan@spri.levels.unisa.edu.au (Alan Modra).
3037 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
3038 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
3039 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
3041 # inject "#include <wurble>" into the compiler's C output!
3043 /^-#include(.*)/ && do {
3044 local($to_include) = &grab_arg_arg(*Args,'-#include', $1);
3045 push(@CcInjects, "#include $to_include\n");
3048 #---------- Linker (gcc, really) ---------------------------------------
3050 /^-static$/ && do { push(@Ld_flags, $_); next arg; };
3052 #---------- mixed cc and linker magic ----------------------------------
3053 # this optimisation stuff is finally sorted out later on...
3055 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
3057 /^-O[1-2]?$/ && do {
3058 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
3059 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
3061 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
3064 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
3066 /^-Ofile(.*)/ && do {
3068 local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1);
3069 @HsC_minusO3_flags = ();
3071 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
3074 s/\#.*//; # death to comments
3075 s/[ \t]+//g; # death to whitespace
3076 next if /^$/; # ditto, blank lines
3077 s/([()*{}])/\\$1/g; # protect shell metacharacters
3079 push(@CcBoth_flags, $1);
3081 push(@HsC_minusO3_flags, $_);
3087 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
3088 # in the consistency info
3092 #---------- linking .a file --------------------------------------------
3094 /^-Main(.*)/ && do {
3095 # specifies main or mainPrimIO to be linked
3099 #---------- catch unrecognized flags -----------------------------------
3102 print STDERR "$Pgm: unrecognised option: $_\n";
3108 } # end of processArgs