2 % (c) The GRASP/AQUA Project, Glasgow University, 1992-1997
5 This is the driver script for the Glasgow Haskell compilation system.
6 It is written in \tr{perl}. The first section includes a long
7 ``usage'' message that describes how the driver is supposed to work.
9 %************************************************************************
11 \section[Driver-usage]{Usage message}
13 %************************************************************************
16 ($Pgm = $0) =~ s|.*/||;
17 $ShortUsage = "\nUsage: For basic information, try the `-help' option.\n";
18 $LongUsage = "\n" . <<EOUSAGE;
19 Use of the Glorious Haskell Compilation System driver:
21 $Pgm [command-line-options-and-input-files]
23 ------------------------------------------------------------------------
24 This driver ($Pgm) guides each input file through (some of the)
25 possible phases of a compilation:
27 - unlit: extract code from a "literate program"
28 - hscpp: run code through the C pre-processor (if -cpp flag given)
29 - hsc: run the Haskell compiler proper
30 - gcc: run the C compiler (if compiling via C)
31 - as: run the assembler
34 For each input file, the phase to START with is determined by the
36 - .lhs literate Haskell: unlit
37 - .hs illiterate Haskell: hsc
38 - .hc C from the Haskell compiler: gcc
39 - .c C not from the Haskell compiler: gcc
40 - .s assembly language: as
41 - other passed directly to the linker: ld
43 If no files are given on the command line, input is taken from
44 standard input, and processing is as for an .hs file. (All output is
45 to stdout or stderr, however).
47 The phase at which to STOP processing is determined by a command-line
49 -E stop after generating preprocessed, de-litted Haskell (used in conjunction with -cpp)
50 -C stop after generating C (.hc output)
51 -S stop after generating assembler (.s output)
52 -c stop after generating object files (.o output)
54 Other commonly-used options are:
56 -O An `optimising' package of compiler flags, for faster code
58 -prof Compile for cost-centre profiling
59 (add -auto for automagic cost-centres on top-level functions)
61 -fglasgow-exts Allow Glasgow extensions (unboxed types, etc.)
63 -H14m Increase compiler's heap size
65 -M Output the Makefile rules recording the
66 dependencies of a list of Haskell files.
67 (ghc driver script calls upon the help of a
68 compatible mkdependHS script to do the actual
71 The User's Guide has more information about GHC's *many* options.
73 Given the above, here are some TYPICAL invocations of $Pgm:
75 # compile a Haskell module to a .o file, optimising:
77 # link three .o files into an executable called "test":
78 % $Pgm -o test Foo.o Bar.o Baz.o
79 # compile a Haskell module to C (a .hc file), using a bigger heap:
80 % $Pgm -C -H16m Foo.hs
81 # compile Haskell-produced C (.hc) to assembly language:
83 ------------------------------------------------------------------------
87 %************************************************************************
89 \section[Driver-init]{Initialisation}
91 %************************************************************************
93 The driver script need to be told where to find these executables, so
94 in the course of building the driver `executable', make-variables holding
95 these are prepended to the de-litted version of this file. The variables are:
100 HOSTPLATFORM TARGETPLATFORM
102 PROJECTNAME PROJECTVERSION PROJECTPATCHLEVEL
106 bindir libdir libexecdir datadir
110 GHC_LIB_DIR GHC_RUNTIME_DIR GHC_UTILS_DIR GHC_INCLUDE_DIR
112 GHC_OPT_HILEV_ASM GhcWithNativeCodeGen
114 GHC_UNLIT GHC_HSCPP GHC_HSC GHC_SYSMAN
118 WAY_*_NAME WAY_*_HC_OPTS
124 Establish what executables to run for the various phases, what the
125 default options are for those phases, and other similar boring stuff.
128 select(STDERR); $| = 1; select(STDOUT); # no STDERR buffering, please.
130 $TargetPlatform = $TARGETPLATFORM;
132 $TopPwd = "${TOP_PWD}";
133 $InstBinDirGhc = "${bindir}";
134 $InstLibDirGhc = "${libdir}";
136 # Normally the same as InstLibDirGhc, but we accommodate
137 # for it being separate.
139 $InstLibExecDirGhc = "${libexecdir}";
140 $InstDataDirGhc = "${datadir}";
141 $InstSysLibDir = ( $INSTALLING ) ? "${InstLibDirGhc}/hslibs" : "$TopPwd/hslibs";
143 $Status = 0; # just used for exit() status
146 # set up signal handler
147 sub quit_upon_signal { &tidy_up_and_die(1, ''); }
148 $SIG{'INT'} = 'quit_upon_signal';
149 $SIG{'QUIT'} = 'quit_upon_signal';
151 # where to get "require"d .prl files at runtime (poor man's dynamic loading)
152 # (use LIB, not DATA, because we can't be sure of arch-independence)
153 @INC = ( ( $INSTALLING ) ? $InstLibDirGhc
154 : "$TopPwd/${CURRENT_DIR}" );
156 if ( $ENV{'TMPDIR'} ) { # where to make tmp file names
157 $Tmp_prefix = ($ENV{'TMPDIR'} . "/ghc$$");
159 print STDERR "TMPDIR has not been set to anything useful!\n" if (${TMPDIR} eq '');
160 $Tmp_prefix ="${TMPDIR}/ghc$$"; # TMPDIR set via Makefile when booting..
161 $ENV{'TMPDIR'} = ${TMPDIR}; # set the env var as well
164 # Some shells run into real trouble when command line and environment
165 # gets big (e.g., cmd lines of >4K to /bin/sh causes havoc on our
166 # Solaris-2.5.1 boxes - even though sysconf(_SC_ARG_MAX) reports 1M ...).
167 # To work around any such */bin/sh* problems, we will scribble such
168 # awfully long command lines into a temp file and exec that temp file
169 # with $(REAL_SHELL) (don't use the SHELL variable directly as this
170 # will normally get you the wrong thing when the driver is invoked
171 # from within `make'). If the REAL_SHELL variable isn't set, you'll
172 # get SHELL. This is all a terrible hack. (in case you hadn't reached
173 # the same conclusion by now :-)
177 if ( ! $ENV{'REAL_SHELL'} ) {
178 $ENV{'REAL_SHELL'} = $ENV{'SHELL'};
181 @Files_to_tidy = (); # files we nuke in the case of abnormal termination
183 $Unlit = ( $INSTALLING ) ? "$InstLibExecDirGhc/unlit"
184 : "$TopPwd/${CURRENT_DIR}/${GHC_UNLIT}";
188 $Diff = $CONTEXT_DIFF;
193 $HsCpp = # but this is re-set to "cat" (after options) if -cpp not seen
194 ( $INSTALLING ) ? "$InstLibExecDirGhc/hscpp"
195 : "$TopPwd/${CURRENT_DIR}/${GHC_HSCPP}";
198 $genSPECS_flag = ''; # See ../utils/hscpp/hscpp.prl
199 $HsC = ( $INSTALLING ) ? "$InstLibExecDirGhc/hsc"
200 : "$TopPwd/${CURRENT_DIR}/${GHC_HSC}";
202 # For PVM fiends only
203 $SysMan = ( $INSTALLING ) ? "$InstLibExecDirGhc/SysMan"
204 : "$TopPwd/${CURRENT_DIR}/${GHC_SYSMAN}";
209 # HsC_rts_flags: if we want to talk to the LML runtime system
210 # NB: we don't use powers-of-2 sizes, because this may do
211 # terrible things to cache behavior.
213 $Specific_heap_size = 6 * 1000 * 1000;
214 $Specific_stk_size = 1000 * 1000;
215 $Scale_sizes_by = 1.0;
219 The variables set by @setupOptFlags@ represent parts of the
220 -O/-O2/etc ``templates,'' which are filled in later, using these.
221 These are the default values, which may be changed by user flags.
225 $Oopt_UnfoldingUseThreshold = '-fsimpl-uf-use-threshold3';
226 $Oopt_MaxSimplifierIterations = '-fmax-simplifier-iterations4';
227 $Oopt_PedanticBottoms = '-fpedantic-bottoms'; # ON by default
228 $Oopt_MonadEtaExpansion = '';
229 $Oopt_FinalStgProfilingMassage = '';
231 $Oopt_SpecialiseUnboxed = '';
232 $Oopt_DoSpecialise = ''; # ToDo:LATER: '-fspecialise';
233 $Oopt_FoldrBuild = 0; # *Off* by default!
234 $Oopt_FB_Support = ''; # was '-fdo-arity-expand';
235 # $Oopt_FoldrBuildWW = 0; # Off by default
236 $Oopt_FoldrBuildInline = ''; # was '-fdo-inline-foldr-build';
237 $Oopt_ShowSimplifierProgress = '';
238 } # end of setupOptFlags
240 # Assign defaults to these right away.
244 Things to do with C compilers/etc:
246 $CcRegd = $GHC_OPT_HILEV_ASM;
247 @CcBoth_flags = ('-S'); # flags for *any* C compilation
251 # those for all files,
252 # those only for .c files;
253 # those only for .hc files
255 @CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__');
256 @CcRegd_flags_c = ();
257 @CcRegd_flags_hc = ();
259 $As = ''; # "assembler" is normally GCC
262 $Lnkr = ''; # "linker" is normally GCC
265 # 'nm' is used for consistency checking (ToDo: mk-world-ify)
266 # ToDo: check the OS or something ("alpha" is surely not the crucial question)
267 $Nm = ($TargetPlatform =~ /^alpha-/) ? 'nm -B' : 'nm';
270 Warning packages that are controlled by -W and -Wall. The 'standard'
271 warnings that you get all the time are
273 -fwarn-overlapping-patterns
274 -fwarn-missing-methods
276 these are turned off by -Wnot.
279 @StandardWarnings = ('-fwarn-overlapping-patterns',
280 '-fwarn-missing-methods');
281 @MinusWOpts = (@StandardWarnings,
282 '-fwarn-incomplete-patterns',
283 '-fwarn-unused-names');
284 @MinusWallOpts = (@MinusWOpts,
285 '-fwarn-name-shadowing');
288 What options \tr{-user-setup-a} turn into (user-defined ``packages''
290 of options). Note that a particular user-setup implies a particular
291 Prelude ({\em including} its interface file(s)).
293 $BuildTag = ''; # default is sequential build w/ Appel-style GC
295 %BuildDescr = (# system ways begin
296 '', 'normal sequential',
300 '_mc', "$WAY_mc_NAME",
301 '_mr', "$WAY_mr_NAME",
302 '_mt', "$WAY_mt_NAME",
303 '_mp', "$WAY_mp_NAME",
304 '_mg', "$WAY_mg_NAME",
305 '_2s', "$WAY_2s_NAME",
306 '_1s', "$WAY_1s_NAME",
307 '_du', "$WAY_du_NAME",
325 '_B', "$WAY_B_NAME" );
327 # these are options that are "fed back" through the option processing loop
331 '_a', "$WAY_a_HC_OPTS",
332 '_b', "$WAY_b_HC_OPTS",
333 '_c', "$WAY_c_HC_OPTS",
334 '_d', "$WAY_d_HC_OPTS",
335 '_e', "$WAY_e_HC_OPTS",
336 '_f', "$WAY_f_HC_OPTS",
337 '_g', "$WAY_g_HC_OPTS",
338 '_h', "$WAY_h_HC_OPTS",
339 '_i', "$WAY_i_HC_OPTS",
340 '_j', "$WAY_j_HC_OPTS",
341 '_k', "$WAY_k_HC_OPTS",
342 '_l', "$WAY_l_HC_OPTS",
343 '_m', "$WAY_m_HC_OPTS",
344 '_n', "$WAY_n_HC_OPTS",
345 '_o', "$WAY_o_HC_OPTS",
346 '_A', "$WAY_A_HC_OPTS",
347 '_B', "$WAY_B_HC_OPTS",
350 '_p', "$WAY_p_HC_OPTS",
351 '_t', "$WAY_t_HC_OPTS",
352 '_u', "$WAY_u_HC_OPTS",
353 '_mc', "$WAY_mc_HC_OPTS",
354 '_mr', "$WAY_mr_HC_OPTS",
355 '_mt', "$WAY_mt_HC_OPTS",
356 '_mp', "$WAY_mp_HC_OPTS",
357 '_mg', "$WAY_mg_HC_OPTS",
358 '_2s', "$WAY_2s_HC_OPTS",
359 '_1s', "$WAY_1s_HC_OPTS",
360 '_du', "$WAY_B_HC_OPTS" );
364 Import/include directories (\tr{-I} options) are sufficiently weird to
365 require special handling.
368 @Import_dir = ('.'); #-i things
369 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
371 # where to look for interface files (system hi's, i.e., prelude and hslibs)
372 @SysImport_dir = ( $INSTALLING )
373 ? ( "$InstLibDirGhc/imports" )
374 : ( "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/required"
375 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/ghc"
376 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/glaExts"
377 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent" );
379 # We need to look in ghc/ and glaExts/ when searching for implicitly needed .hi files, but
380 # we should really *not* look there for explicitly imported modules.
382 $GhcVersionInfo = int($PROJECTVERSION * 100 + .5); # i.e., round (X.Y * 100)
383 $Haskell1Version = 4; # i.e., Haskell 1.4
386 @UserLibrary_dir= (); #-L things;...
387 @UserLibrary = (); #-l things asked for by the user
389 @SysLibrary_dir = ( ( $INSTALLING ) #-syslib things supplied by the system
391 : ( "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR"
392 , "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/gmp"
393 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR"
394 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/cbits"
397 @SysLibrary = (); # will be built up as we go along
399 $TopClosureFile # defaults to 1.2 one; will be mangled later
400 = ( $INSTALLING) ? "$InstLibDirGhc/TopClosureXXXX.o"
401 : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/main/TopClosureXXXX.o";
403 # make depend for Haskell
405 = ( $INSTALLING ) ? "$InstBinDirGhc/mkdependHS"
406 : "$TopPwd/$CURRENT_DIR/$GHC_UTILS_DIR/mkdependHS/mkdependHS";
408 @MkDependHS_flags = ();
410 # do_link flag should not be reset while rescanning the cmd-line.
412 $Specific_output_dir = ''; # set by -odir <dir>
413 $Specific_output_file = ''; # set by -o <file>; "-" for stdout
416 Function to initialise the per-compilation-unit globals that
417 are used to guide and control the invocation of the different phases.
420 sub initDriverGlobals {
422 # reset the following options:
423 # RTS flags to use while compiling
425 @HsP_flags = (); # these are the flags destined solely for
426 # the flex/yacc parser
431 The optimisations/etc to be done by the compiler are {\em normally}
432 expressed with a \tr{-O} (or \tr{-O2}) flag, or by its absence.
435 $OptLevel = 0; # no -O == 0; -O == 1; -O2 == 2; -Ofile == 3
436 $MinusO2ForC = 0; # set to 1 if -O2 should be given to C compiler
437 $StolenX86Regs = 4; # **HACK*** of the very worst sort
441 @CcBoth_flags = ('-S'); # flags for *any* C compilation
444 # GCC flags: those for all files, those only for .c files; those only for .hc files
445 @CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__');
446 @CcRegd_flags_c = ();
447 @CcRegd_flags_hc = ();
449 @Import_dir = ('.'); #-i things
450 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
455 We are given a list of files with various presumably-known suffixes
456 (unknown-suffix files go straight to the linker). For each file, we
457 begin by assuming that we'll run every phase over it. However: (1)
458 global flags (\tr{-c}, \tr{-S}, etc.) tell us not to run any phase
459 past a certain point; and (2) the file's suffix tells us what phase to
460 start with. Linking is weird and kept track of separately.
462 Here are the initial defaults applied to all files:
464 $Cpp_flag_set = 0; # (hack)
465 $Only_preprocess_C = 0; # pretty hackish
466 $Only_preprocess_hc = 0; # ditto
467 $Only_generate_deps = 0; # "
468 $PostprocessCcOutput = 0;
470 # native code-gen or via C?
471 $HaveNativeCodeGen = $GhcWithNativeCodeGen;
472 $HscOut = '-C='; # '-C=' ==> .hc output; '-S=' ==> .s output; '-N=' ==> neither
474 if $HaveNativeCodeGen && $TargetPlatform =~ /^(alpha|sparc)-/;
475 # TEMP: disable x86 if $HaveNativeCodeGen && $TargetPlatform =~ /^(i386|alpha|sparc)-/;
476 $ProduceHi = '-hifile=';
481 $CollectingGCstats = 0;
482 $CollectGhcTimings = 0;
483 $DEBUGging = ''; # -DDEBUG and all that it entails (um... not really)
484 $PROFing = ''; # set to p or e if profiling
485 $PROFgroup = ''; # set to group if an explicit -Ggroup specified
486 $PROFauto = ''; # set to relevant hsc flag if -auto or -auto-all
487 $PROFcaf = ''; # set to relevant hsc flag if -caf-all
488 $PROFignore_scc = ''; # set to relevant parser flag if explicit sccs ignored
489 $UNPROFscc_auto = ''; # set to relevant hsc flag if forcing auto sccs without profiling
490 $TICKYing = ''; # set to t if compiling for ticky-ticky profiling
491 $PARing = ''; # set to p if compiling for PAR
492 $CONCURing = ''; # set to c if compiling for CONCURRENT
493 $GRANing = ''; # set to g if compiling for GRAN
494 $StkChkByPageFaultOK = 1; # may be set to 0 (false) for some builds
495 $Specific_hi_file = ''; # set by -ohi <file>; "-" for stdout
496 $Specific_dump_file = ''; # set by -odump <file>; "-" for stdout
497 $Using_dump_file = 0;
499 $Osuffix = ''; # default: use the normal suffix for that kind of output
501 $HiSuffix_prelude = '';
502 $Do_recomp_chkr = 0; # don't use the recompilatio checker unless asked
503 $Do_cc = -1; # a MAGIC indeterminate value; will be set to 1 or 0.
506 $Keep_hc_file_too = 0;
507 $Keep_s_file_too = 0;
508 $UseGhcInternals = 0; # if 1, may use GHC* modules
511 $Dump_parser_output = 0;
513 $Dump_asm_splitting_info = 0;
514 $NoImplicitPrelude = 0;
517 } # end of initDriverGlobals (Sigh)
519 # we split the argv passed to the driver into three:
524 # and files to be linked...
530 # cmd line options prefixing the unit we're compiling
535 We inject consistency-checking information into \tr{.hc} files (both
536 when created by the Haskell compiler and when compiled by the C
537 compiler), so that we can check that an executable is made from
538 consistently-built pieces. (The check is normally done just after
539 linking.) The checking is done by introducing/munging
540 \tr{what(1)}-style strings. Anyway, here are the relevant global
541 variables and their defaults:
543 $LinkChk = 1; # set to 0 if the link check should *not* be done
545 # major & minor version numbers; major numbers must always agree;
546 # minor disagreements yield a warning.
547 $HsC_major_version = 33;
548 $HsC_minor_version = 0;
549 $Cc_major_version = 36;
550 $Cc_minor_version = 1;
552 # options: these must always agree
553 $HsC_consist_options = ''; # we record, in this order:
554 # Build tag; debugging?
555 $Cc_consist_options = ''; # we record, in this order:
556 # Build tag; debugging?
559 %************************************************************************
561 \section[Driver-parse-argv]{Munge the command-line options}
563 %************************************************************************
565 Now slurp through the arguments.
568 &initDriverGlobals();
569 &splitCmdLine(@ARGV);
570 # Run through the cmd-line first time.
571 &processArgs(@Cmd_opts);
573 # Check to see if driver is only in the business
574 # to generate dependencies
575 if ( $Status == 0 && $Only_generate_deps ) {
577 push (@MkDependHS_flags, "-o$Osuffix") if $Osuffix;
578 push (@MkDependHS_flags, "-s$BuildTag") if $BuildTag;
579 push (@MkDependHS_flags, "-D__HASKELL1__=$Haskell1Version");
580 local($to_do) = "$MkDependHS @MkDependHS_flags -- @Cmd_opts -- @Input_file" ;
581 &run_something($to_do, 'Haskell dependencies');
585 # if there are several input files,
586 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
587 # (except if linking, of course)
589 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
590 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
591 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
592 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
593 print STDERR "\tPerhaps the -odir option will do what you want.\n";
598 # check for various pathological -o and -odir combinations...
599 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
600 if ($Specific_output_file eq '-') {
601 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
603 } else { # amalgamate...
604 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
605 # ToDo: check we haven't got a junk name now...
606 $Specific_output_dir = ''; # reset
610 # crash and burn if there were errors
612 print STDERR $ShortUsage;
617 %************************************************************************
619 \section[Driver-post-argv-mangling]{Setup after reading options}
621 %************************************************************************
623 %************************************************************************
625 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
627 %************************************************************************
629 We come now to the default ``wads of options'' that are turned on by
630 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
631 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
634 The user can also specify his/her own list of options in a file; in
635 that case, the work is already done (see stuff about @minusO3@,
638 GHC allows very precise control of what happens during a compilation.
639 Core-to-Core and STG-to-STG passes can be run in any order, as many
640 times as you like. Individual transformations can be turned on or
643 Sadly, however, there are some interdependencies \& Things You Must
644 Not Do. Here is the list.
648 \item[\tr{-fspecialise}:]
649 The specialiser must have dependency-analysed input; but if you run
650 the simplifier to do this, you must not let it toss away unused
651 bindings! (The typechecker conveys some specialisation info via
652 ``unused'' bindings...)
654 \item[\tr{-ffloat-inwards}:]
655 Floating inwards should be done before strictness analysis, because
656 the latter will give better results.
658 \item[\tr{-fstatic-args}:]
659 The static-arguments-transformation pass {\em must} have the
660 simplifier run right after it.
662 \item[\tr{-fcalc-inlinings[12]}:]
663 Not required, but there may be slight gains by re-simplifying after
664 this is done. (You could then \tr{-fcalc-inlinings} again, just for
667 \item[\tr{-ffull-laziness}:]
668 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
669 that's run. (Um, well, howzabout the simplifier just once more...)
674 \item[\tr{-fupdate-analysis}:]
675 It really really wants to be the last STG-to-STG pass that is run.
680 sub setupOptimiseFlags {
686 '-ffloat-lets-exposing-whnf',
687 '-ffloat-primops-ok',
690 # '-fdo-lambda-eta-expansion', # too complicated
692 # '-flet-to-case', # no strictness analysis, so...
693 $Oopt_PedanticBottoms,
694 # $Oopt_MonadEtaExpansion, # no thanks
696 # These two work fine, if you really want no simplification at all,
697 # for bizarre test reasons. But you get really terrible code if you use them,
698 # for example: let x = e in x
699 # with dozens of redundant thunks etc. So I'm leaving them out.
701 # '-fsimpl-uf-use-threshold0',
702 # '-fessential-unfoldings-only',
704 $Oopt_UnfoldingUseThreshold,
705 $Oopt_MaxSimplifierIterations,
706 $Oopt_ShowSimplifierProgress,
709 # '-ffull-laziness', # removed 95/04 WDP following Andr\'e's lead
711 $Oopt_FinalStgProfilingMassage
714 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
716 '-fdo-eta-reduction',
718 # initial simplify: mk specialiser happy: minimum effort please
722 '-fkeep-spec-pragma-ids', # required before specialisation
724 # I don't understand why we want -fessential-unfoldings-only here
725 # If we have it, the following nasty thing happens:
729 # where "*" means exported.
730 # In the essential-unfoldings pass we still substitute f for g
731 # but we don't substitute E for f first. So we get
735 # The g=f will get reverse-substituted later, but it's untidy.
737 # '-fessential-unfoldings-only',
738 # '-fsimpl-uf-use-threshold0',
740 '-fmax-simplifier-iterations1',
741 $Oopt_PedanticBottoms,
744 ($Oopt_DoSpecialise) ? (
745 '-fspecialise-overloaded',
746 $Oopt_SpecialiseUnboxed,
750 '-fsimplify', # need dependency anal after specialiser ...
751 '[', # need tossing before calc-inlinings ...
753 '-ffloat-lets-exposing-whnf',
754 '-ffloat-primops-ok',
758 # '-fdo-eta-reduction',
759 '-fdo-lambda-eta-expansion',
761 $Oopt_PedanticBottoms,
762 $Oopt_MonadEtaExpansion,
763 $Oopt_UnfoldingUseThreshold,
764 $Oopt_MaxSimplifierIterations,
765 $Oopt_ShowSimplifierProgress,
768 #LATER: '-fcalc-inlinings1', -- pointless for 2.01
770 # ($Oopt_FoldrBuildWW) ? (
771 # '-ffoldr-build-ww-anal',
772 # '-ffoldr-build-worker-wrapper',
776 # '-ffloat-lets-exposing-whnf',
777 # '-ffloat-primops-ok',
781 # '-fdo-eta-reduction',
782 # '-fdo-lambda-eta-expansion',
784 # $Oopt_PedanticBottoms,
785 # $Oopt_MonadEtaExpansion,
786 # $Oopt_UnfoldingUseThreshold,
787 # $Oopt_MaxSimplifierIterations,
788 # $Oopt_ShowSimplifierProgress,
792 # this pass-ordering sequence was agreed by Simon and Andr\'e
793 # (WDP 94/07, 94/11).
796 ($Oopt_FoldrBuild) ? (
797 '-ffoldr-build-on', # desugar list comprehensions for foldr/build
801 '-fignore-inline-pragma', # **** NB!
802 '-fdo-foldr-build', # NB
804 '-ffloat-lets-exposing-whnf',
805 '-ffloat-primops-ok',
809 # '-fdo-eta-reduction',
810 '-fdo-lambda-eta-expansion', # After full laziness
812 $Oopt_PedanticBottoms,
813 $Oopt_MonadEtaExpansion,
814 $Oopt_UnfoldingUseThreshold,
815 $Oopt_MaxSimplifierIterations,
816 $Oopt_ShowSimplifierProgress,
825 '-ffloat-lets-exposing-whnf',
826 '-ffloat-primops-ok',
830 '-fdo-eta-reduction',
831 '-fdo-lambda-eta-expansion',
833 ($Oopt_FoldrBuildInline),
834 # you need to inline foldr and build
835 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
836 # but do reductions if you see them!
837 $Oopt_PedanticBottoms,
838 $Oopt_MonadEtaExpansion,
839 $Oopt_UnfoldingUseThreshold,
840 $Oopt_MaxSimplifierIterations,
841 $Oopt_ShowSimplifierProgress,
849 '-ffloat-lets-exposing-whnf',
850 '-ffloat-primops-ok',
854 # '-fdo-eta-reduction',
855 '-fdo-lambda-eta-expansion',
857 '-flet-to-case', # Aha! Only done after strictness analysis
858 $Oopt_PedanticBottoms,
859 $Oopt_MonadEtaExpansion,
860 $Oopt_UnfoldingUseThreshold,
861 $Oopt_MaxSimplifierIterations,
862 $Oopt_ShowSimplifierProgress,
867 # Case-liberation for -O2. This should be after
868 # strictness analysis and the simplification which follows it.
872 # : "-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 ]" ),
874 # Final clean-up simplification:
879 '-ffloat-lets-exposing-whnf',
880 '-ffloat-primops-ok',
884 # '-fdo-eta-reduction',
885 '-fdo-lambda-eta-expansion',
888 '-fignore-inline-pragma', # **** NB!
889 $Oopt_FoldrBuildInline,
890 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
891 # but still do reductions if you see them!
892 $Oopt_PedanticBottoms,
893 $Oopt_MonadEtaExpansion,
894 $Oopt_UnfoldingUseThreshold,
895 $Oopt_MaxSimplifierIterations,
896 $Oopt_ShowSimplifierProgress,
901 #LATER: '-fcalc-inlinings2', -- pointless for 2.01
906 $Oopt_FinalStgProfilingMassage,
912 # SPECIAL FLAGS for -O2
920 Sort out what we're going to do about optimising. First, the @hsc@
921 flags and regular @cc@ flags to worry about:
923 if ( $OptLevel <= 0 ) {
925 # for this level, we tell the parser -fignore-interface-pragmas
926 push(@HsC_flags, '-fignore-interface-pragmas');
927 # and tell the compiler not to produce them
928 push(@HsC_flags, '-fomit-interface-pragmas');
930 &add_Hsc_flags( @HsC_minusNoO_flags );
931 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
933 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
935 &add_Hsc_flags( @HsC_minusO_flags );
936 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
937 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
938 # but it *is* useful in compiling the garbage collectors (so said
939 # Patrick many moons ago...).
941 } else { # -Ofile, then...
943 &add_Hsc_flags( @HsC_minusO3_flags );
944 push(@HsC_flags, $Oopt_FinalStgProfilingMassage) if $Oopt_FinalStgProfilingMassage;
946 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
949 } # setupOptimiseFlags
953 %************************************************************************
955 \subsection{Check for consistency, etc.}
957 %************************************************************************
959 Sort out @$BuildTag@, @$PROFing@, @$CONCURing@, @$PARing@,
960 @$GRANing@, @$TICKYing@:
962 sub setupBuildFlags {
965 # PROFILING stuff after argv mangling:
967 # warn about any scc exprs found (in case scc used as identifier)
968 push(@HsP_flags, '-W');
970 # add -auto sccs even if not profiling !
971 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
974 push(@HsC_flags, $PROFauto) if $PROFauto;
975 push(@HsC_flags, $PROFcaf) if $PROFcaf;
976 #push(@HsC_flags, $PROFdict) if $PROFdict;
978 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
980 push(@HsP_flags, (($PROFignore_scc) ? $PROFignore_scc : '-S'));
982 if ( $SplitObjFiles ) {
983 # can't split with cost centres -- would need global and externs
984 print STDERR "$Pgm: WARNING: splitting objects when profiling will *BREAK* if any _scc_s are present!\n";
985 # (but it's fine if there aren't any _scc_s around...)
986 # $SplitObjFiles = 0; # unset
987 #not an error: for now: $Status++;
990 #if ( $BuildTag ne '' ) {
991 # local($b) = $BuildDescr{$BuildTag};
992 # if ($CONCURing eq 'c') { print STDERR "$Pgm: Can't mix $b with -concurrent.\n"; exit 1; }
993 # if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
994 # if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
995 # if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
997 # # ok to have a user-way profiling build
998 # # eval the profiling opts ... but leave user-way BuildTag
999 # if ($PROFing eq 'p') { &processArgs(split(' ', $SetupOpts{'_p'})); } # eval($EvaldSetupOpts{'_p'}); }
1001 if ( $PROFing eq 'p' ) {
1002 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
1003 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
1004 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
1005 $BuildTag = ($CONCURing eq 'c') ? '_mr' : '_p' ; # possibly "profiled concurrent"...
1007 } elsif ( $CONCURing eq 'c' ) {
1008 if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix -concurrent with -parallel.\n"; exit 1; }
1009 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -concurrent with -gransim.\n"; exit 1; }
1010 $BuildTag = ($TICKYing eq 't') ? '_mt' : '_mc' ; # possibly "ticky concurrent"...
1011 # "profiled concurrent" already acct'd for...
1013 } elsif ( $PARing eq 'p' ) {
1014 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
1015 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
1018 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
1019 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
1023 } elsif ( $GRANing eq 'g' ) {
1024 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
1027 } elsif ( $TICKYing eq 't' ) {
1033 After the sanity checks, add flags to the necessary parts of the driver pipeline:
1036 if ( $BuildTag ne '' ) { # something other than normal sequential...
1038 local($Tag) = "${BuildTag}";
1039 $Tag =~ s/_//; # move the underscore to the back
1041 $HscOut = '-C='; # must go via C
1042 &processArgs(split(' ', $SetupOpts{$BuildTag}));
1043 # eval($EvaldSetupOpts{$BuildTag});
1047 Decide what the consistency-checking options are in force for this run:
1050 $HsC_consist_options = "${BuildTag},${DEBUGging}";
1051 $Cc_consist_options = "${BuildTag},${DEBUGging}";
1054 # Funny place to put it, but why not.
1056 if ( $HiSuffix_prelude eq '' ) {
1057 local($Tag) = "${BuildTag}";
1059 $Tag = "${Tag}_" if $Tag ne '';
1060 $HiSuffix_prelude="${Tag}hi";
1062 #push(@HsC_flags, "-hisuf-prelude=.${HiSuffix_prelude}"); # use appropriate Prelude .hi files
1063 #push(@HsC_flags, "-hisuf=.${HiSuffix}");
1068 %************************************************************************
1070 \subsection{Add on machine-specific C-compiler flags}
1072 %************************************************************************
1074 Shove on magical machine-specific options. We use \tr{unshift} to
1075 stick them on the {\em front} of the arrays, so that ``later''
1076 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
1078 Note: a few ``always apply'' flags were set at the very beginning.
1083 if ($TargetPlatform =~ /^alpha-/) {
1084 # we know how to *mangle* asm for alpha
1085 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1086 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1087 unshift(@CcBoth_flags, ('-static'));
1089 } elsif ($TargetPlatform =~ /^hppa/) {
1090 # we know how to *mangle* asm for hppa
1091 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1092 unshift(@CcBoth_flags, ('-static'));
1094 # We don't put in '-mlong-calls', because it's only
1095 # needed for very big modules (sigh), and we don't want
1096 # to hobble ourselves further on all the other modules
1099 # [Dated comment (gcc-2.6.x?), -mlong-calls is no longer
1100 # a supported gcc HPPA flag]
1101 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
1102 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
1103 # (very nice, but too bad the HP /usr/include files don't agree.)
1105 } elsif ($TargetPlatform =~ /^i386-/) {
1106 # we know how to *mangle* asm for X86
1107 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1108 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK && $TargetPlatform !~ /nextstep/;
1109 # I do not know how to do STACK_CHECK_BY_PAGE_FAULT
1110 # on NeXTs (my fault, not theirs), so I don't.
1113 # -fno-defer-pop : basically the same game as for m68k
1115 # -fomit-frame-pointer : *must* ; because we're stealing
1116 # the fp (%ebp) for our register maps. *All* register
1117 # maps (in MachRegs.lh) must steal it.
1119 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1120 unshift(@CcRegd_flags, '-fomit-frame-pointer');
1121 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1123 } elsif ($TargetPlatform =~ /^m68k-/) {
1124 # we know how to *mangle* asm for m68k
1125 unshift (@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1126 unshift (@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK && $TargetPlatform !~ /nextstep/;
1127 # I do not know how to do STACK_CHECK_BY_PAGE_FAULT
1128 # on NeXTs (my fault, not theirs), so I don't.
1131 # -fno-defer-pop : for the .hc files, we want all the pushing/
1132 # popping of args to routines to be explicit; if we let things
1133 # be deferred 'til after an STGJUMP, imminent death is certain!
1135 # -fomit-frame-pointer : *don't*
1136 # It's better to have a6 completely tied up being a frame pointer
1137 # rather than let GCC pick random things to do with it.
1138 # (If we want to steal a6, then we would try to do things
1139 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1141 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1142 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1143 # maybe gives reg alloc a better time
1144 # also: -fno-defer-pop is not sufficiently well-behaved without it
1146 } elsif ($TargetPlatform =~ /^mips-/) {
1147 # we (hope to) know how to *mangle* asm for MIPSen
1148 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1149 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1150 unshift(@CcBoth_flags, ('-static'));
1152 } elsif ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1153 # we know how to *mangle* asm for PowerPC
1154 # :-( unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1155 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1156 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1157 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1158 } elsif ($TargetPlatform =~ /^sparc-/) {
1159 # we know how to *mangle* asm for SPARC
1160 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1161 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1164 } # end of setupMachOpts
1167 %************************************************************************
1169 \subsection{Set up for warnings}
1171 %************************************************************************
1173 Several warnings are turned on by default. These are supposed to be
1174 the 'I'm pretty sure you've made a mistake here' kind of warnings.
1175 The rest are turned on by the -W and -Wall options, or individually
1176 via their -fwarn and -fno-warn flags.
1179 sub setupWarningFlags {
1180 &add_Hsc_flags( @StandardWarnings );
1184 Same unshifting magic, but for special linker flags.
1186 The configure script determines whether the object file symbol tables
1187 have a leading underscore, and sets @LeadingUnderscore@ accordingly.
1188 (The driver script `sees' the setting of the @LeadingUnderscore@
1189 by having the Makefile prepend it).
1193 local($uscore) = ( ${LeadingUnderscore} eq 'YES' ) ? '_' : '';
1196 (($Ld_main) ? ( '-u', "${uscore}Main_" . $Ld_main . '_closure' ) : ()));
1198 ( '-u', "${uscore}PrelBase_Z91Z93_closure" # i.e., []
1199 ,'-u', "${uscore}PrelBase_IZh_static_info"
1200 ,'-u', "${uscore}PrelBase_CZh_static_info"
1201 ,'-u', "${uscore}PrelBase_False_inregs_info"
1202 ,'-u', "${uscore}PrelBase_True_inregs_info"
1203 ,'-u', "${uscore}DEBUG_REGS"
1205 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1206 # sometimes we have lots of toc entries...
1207 # unshift(@Ld_flags, ('-Xlinker -bbigtoc -Xlinker -bnoquiet'));
1208 unshift(@Ld_flags, ('-Xlinker -bbigtoc'));
1211 } # end of setupLinkOpts
1215 %************************************************************************
1217 \subsection{Set up include paths and system-library enslurpment}
1219 %************************************************************************
1221 Now that we know what garbage-collector, etc., are required, we can
1222 finalise our list of libraries to slurp through, and generally Get
1227 # default includes must be added AFTER option processing
1228 if ( ! $INSTALLING ) {
1229 push (@Include_dir, "$TopPwd/${CURRENT_DIR}/${GHC_INCLUDE_DIR}");
1231 push (@Include_dir, "$InstLibDirGhc/includes");
1232 push (@Include_dir, "$InstLibDirGhc/includes");
1234 } # end of setupIncPaths
1239 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1242 foreach $f (@SysLibrary) {
1243 next if $f =~ /_cbits/;
1244 $f .= $BuildTag if $f =~ /^-lHS/;
1247 # fiddle the TopClosure file name...
1248 $TopClosureFile =~ s/XXXX//;
1250 # Push library HSrts, plus boring clib bit
1251 push(@SysLibrary, "-lHSrts${BuildTag}");
1252 push(@SysLibrary, '-lHSclib');
1254 # RTS compiled with cygwin32, uses the WinMM API
1255 # to implement the itimers, since cygwin.dll does not
1256 # support it. Only reqd. for `ways' that use itimers.
1258 push(@SysLibrary, '-lwinmm') if $BuildTag ne '' && $TargetPlatform eq 'i386-unknown-cygwin32';
1260 # Push the pvm libraries
1261 if ($BuildTag eq '_mp') {
1262 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1263 push(@SysLibrary, "-L$pvmlib", '-lpvm3', '-lgpvm3');
1264 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1265 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1266 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1267 push(@SysLibrary, '-lsocket', '-lnsl');
1271 # Push the GNU multi-precision arith lib; and the math library
1272 push(@SysLibrary, '-lgmp');
1273 push(@SysLibrary, '-lm');
1276 %************************************************************************
1278 \subsection{Check that this system was built to do what we are asking}
1280 %************************************************************************
1282 Before continuing we check that the appropriate build is available.
1285 #die "$Pgm: no BuildAvail?? $BuildTag\n" if $BuildDescr{$BuildTag} eq '' ; # sanity
1287 if ( $BuildDescr{$BuildTag} eq '' ) {
1288 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1289 "' \"build\" is not available with your GHC setup.\n";
1290 print STDERR "(It was not configured for it at your site.)\n";
1291 print STDERR $ShortUsage;
1295 } # end of setupSyslibs
1299 %************************************************************************
1301 \subsection{Final miscellaneous setup bits before we start going}
1303 %************************************************************************
1305 Record largest specific heapsize, if any.
1307 sub setupHeapStackSize {
1308 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1309 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1310 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1311 push(@HsC_rts_flags, "-K$Specific_stk_size");
1315 If no input or link files seen, then we let 'em feed in stdin; this is
1316 mainly for debugging.
1320 if ($#Input_file < 0 && $#Link_file < 0) {
1321 @Input_file = ( '-' );
1323 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1324 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n" if -t;
1325 while (<STDIN>) { print INF $_; }
1326 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1331 Tell the world who we are, if they asked.
1333 print STDERR "${PROJECTNAME}, version ${PROJECTVERSION}, patchlevel ${PROJECTPATCHLEVEL}\n"
1337 %************************************************************************
1339 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1341 %************************************************************************
1343 Process the input files; don't continue with linking if there are
1344 problems (global variable @$Status@ non-zero).
1346 foreach $ifile (@Input_file) {
1347 &ProcessInputFile($ifile);
1350 if ( $Status > 0 ) { # don't link if there were errors...
1351 print STDERR $ShortUsage;
1356 # append last minute flags linker and consistency flags
1363 Link if appropriate.
1366 local($libdirs) = '';
1368 # glue them together:
1369 push(@UserLibrary_dir, @SysLibrary_dir);
1371 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1373 # for a linker, use an explicitly given one, or the going C compiler ...
1374 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1376 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1377 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1379 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $TopClosureFile $libdirs @UserLibrary @SysLibrary";
1380 &run_something($to_do, 'Linker');
1382 # finally, check the consistency info in the binary
1383 local($executable) = $Files_to_tidy[0];
1384 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1387 # dynamically load consistency-chking code; then do it.
1388 require('ghc-consist.prl')
1389 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1391 &chk_consistency_info ( $executable );
1394 # if PVM parallel stuff, we do truly weird things.
1395 # Essentially: (1) move the executable over to where PVM expects
1396 # to find it. (2) create a script in place of the executable
1397 # which will cause the program to be run, via SysMan.
1398 if ( $PARing eq 'p' ) {
1399 local($pvm_executable) = $executable;
1400 local($pvm_executable_base);
1402 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1403 local($pwd) = `pwd`;
1405 $pwd =~ s/^\/tmp_mnt//;
1406 $pvm_executable = "$pwd/$pvm_executable";
1409 $pvm_executable =~ s|/|=|g; # make /s into =s
1410 $pvm_executable_base = $pvm_executable;
1412 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1413 . "/$pvm_executable";
1415 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1417 # OK, now create the magic script for "$executable"
1418 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1419 print EXEC <<EOSCRIPT1;
1420 eval 'exec perl -S \$0 \${1+"\$@"}'
1421 if \$running_under_some_shell;
1422 # =!=!=!=!=!=!=!=!=!=!=!
1423 # This script is automatically generated: DO NOT EDIT!!!
1424 # Generated by Glasgow Haskell, version ${PROJECTVERSION} ${PROJECTPATCHLEVEL}
1426 \$pvm_executable = '$pvm_executable';
1427 \$pvm_executable_base = '$pvm_executable_base';
1428 \$SysMan = '$SysMan';
1431 print EXEC <<\EOSCRIPT2;
1432 # first, some magical shortcuts to run "commands" on the binary
1434 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1436 system("$cmd $pvm_executable");
1440 # OK, really run it; process the args first
1441 $ENV{'PE'} = $pvm_executable_base;
1443 $nprocessors = 2; # the default
1447 # ToDo: handle --RTS
1448 args: while ($a = shift(@ARGV)) {
1449 if ( $a eq '+RTS' ) {
1451 } elsif ( $a eq '-RTS' ) {
1454 if ( $a eq '-d' && $in_RTS_args ) {
1456 } elsif ( $a =~ /^-N(\d+)/ && $in_RTS_args ) {
1459 push(@nonPVM_args, $a);
1463 local($return_val) = 0;
1464 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
1466 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
1469 close(EXEC) || die "Failed closing $executable\n";
1470 chmod 0755, $executable;
1474 # that... that's all, folks!
1476 exit $Status; # will still be 0 if all went well
1479 %************************************************************************
1481 \section[Driver-do-one-file]{How to process a single input file}
1483 %************************************************************************
1486 sub ProcessInputFile {
1487 local($ifile) = @_; # input file name
1488 local($ifile_root); # root of or basename of input file
1489 local($ofile_target); # ultimate output file we hope to produce
1490 # from input file (need to know for recomp
1491 # checking purposes)
1492 local($hifile_target);# ditto (but .hi file)
1495 Handle the weirdity of input from stdin.
1497 if ($ifile ne '-') {
1498 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1499 $ofile_target = # may be reset later...
1500 ($Specific_output_file ne '' && ! $Do_lnkr)
1501 ? $Specific_output_file
1502 : &odir_ify($ifile_root, 'o');
1503 $hifile_target= ($Specific_hi_file ne '')
1505 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1506 # NB: may change if $ifile_root isn't module name (??)
1508 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1509 $ifile_root = '_stdin';
1510 $ofile_target = '_stdout'; # gratuitous?
1511 $hifile_target= '_stdout'; # ditto?
1515 We need to decide what phases of the compilation system we will run
1516 over this file. The defaults are the ones established when processing
1517 flags. (That established what the last phase run for all files is.)
1519 We do the pre-recompilation-checker phases here; the rest later.
1523 Look at the suffix and decide what initial phases of compilation may
1524 be dropped off for this file. Also the rather boring business of
1525 which files are coming-in/going-out.
1527 Again, we'll do the post-recompilation-checker parts of this later.
1529 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1530 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1533 # names of the files to stuff between phases
1534 # defaults are temporaries
1535 local($in_lit2pgm) = $ifile;
1536 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1537 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1538 local($hsc_hi) = "$Tmp_prefix.hi";
1539 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1540 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1541 local($as_out) = $ofile_target;
1543 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
1545 # OK, let's strip off some literate junk..
1547 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
1549 $lit2pgm_hscpp = $ifile;
1555 # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas
1556 &check_for_source_options($lit2pgm_hscpp,$ifile);
1558 # Options found in the source file take a back seat, i.e., we scan
1559 # them first. Only process the command line again if source file
1560 # contained anything of interest *or* there's more than one
1561 # input file (we have to reset the options).
1563 if ( $#Input_file >= 0 || $#File_options >= 0) {
1564 #@File_options = (@File_options, @Cmd_opts);
1566 # Now process the command line
1567 &initDriverGlobals();
1568 &processArgs((@File_options,@Cmd_opts));
1569 print STDERR "\nEffective command line: " .
1570 join(' ',(@File_options,@Cmd_opts)) . "\n" if $Verbose;
1573 # Having got the effective command line scanned, set up
1574 # the various options in prep for some real work.
1576 # check the sanity of the BuildTag we're about to use,
1577 # and if needs be, add some more flags and setup to
1578 # the different phases.
1581 &setupOptimiseFlags();
1584 &setupWarningFlags();
1585 &setupHeapStackSize();
1588 # These two variables need to be set after the
1589 # command-line has been processed and the build options
1590 # have be seen set up. This is because command-line options
1591 # can control whether to compile vias C or not.
1593 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1595 : ( ($HscOut eq '-C=') ? 1 : 0 );
1596 local($do_as) = $Do_as;
1597 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1599 if ($Only_preprocess_hc) { # stop after having run $Cc -E
1602 if ($Only_preprocess_C) { # stop after having run $hscpp
1603 $do_hsc=0; $do_cc = 0; $do_as=0;
1604 } elsif ($ifile =~ /.lhs$/ || $ifile =~ /.hs$/ ) {
1606 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
1607 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1609 } elsif ($ifile =~ /\.c$/) {
1610 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1611 $hsc_out = $ifile; $is_hc_file = 0;
1612 } elsif ($ifile =~ /\.s$/) {
1613 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
1615 } else { # don't know what it is, but nothing to do herein...
1616 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
1619 # hack to avoid running hscpp
1620 $HsCpp = $Cat if ! $Cpp_flag_set;
1622 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) if $do_hscpp;
1626 We now think about whether to run hsc/cc or not (when hsc produces .s
1627 stuff, it effectively takes the place of both phases).
1629 To get the output file name right: for each phase that we are {\em
1630 not} going to run, set its input (i.e., the output of its preceding
1631 phase) to @"$ifile_root.<suffix>"@.
1634 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
1637 # Warning issued if -keep-hc-file-too is used without
1638 # -fvia-C (or the equivalent)
1640 if ( $HscOut ne '-C=' && $Keep_hc_file_too ) {
1641 print STDERR "$Pgm: warning: Native code generator to be used, -keep-hc-file-too will be ignored\n";
1644 if (! $do_cc && ! $do_as) { # stopping after hsc
1645 $hsc_out = ($Specific_output_file ne '')
1646 ? $Specific_output_file
1647 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
1649 $ofile_target = $hsc_out; # reset
1652 if (! $do_as) { # stopping after gcc (or hsc)
1653 $cc_as = ($Specific_output_file ne '')
1654 ? $Specific_output_file
1655 : &odir_ify($ifile_root, ( $Only_preprocess_hc ) ? 'i' : 's');
1657 $ofile_target = $cc_as; # reset
1663 Now the Haskell compiler, C compiler, and assembler
1667 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
1668 $ofile_target, $hifile_target);
1672 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
1673 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root) if ! $Only_preprocess_hc;
1676 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
1678 # save a copy of the .s file..
1679 &saveIntermediate($ifile_root , "s" , $cc_as) if ($do_as && $Keep_s_file_too);
1680 &runAs($as_out, $ifile_root) if $do_as;
1683 Finally, decide what to queue up for linker input.
1685 # tentatively assume we will eventually produce linker input:
1686 push(@Link_file, &odir_ify($ifile_root, 'o'));
1688 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
1690 if ( $ifile !~ /\.(lhs|hs|hc|c|s)$/ && $ifile !~ /_hc$/ ) {
1691 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n"
1692 if $ifile !~ /\.a$/;
1694 # oops; we tentatively pushed the wrong thing; fix & do the right thing
1695 pop(@Link_file); push(@Link_file, $ifile);
1699 } # end of ProcessInputFile
1702 %************************************************************************
1704 \section[Driver-run-phases]{Routines to run the various phases}
1706 %************************************************************************
1710 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
1714 # Only add #line pragma if we're going to need it.
1715 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && " if ($Cpp_flag_set);
1716 $to_do .= "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
1718 push(@Files_to_tidy, $lit2pgm_hscpp );
1720 &run_something($to_do, 'literate pre-processor');
1726 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
1730 # Strictly speaking, echoing of the following line pragma is only required
1731 # on non-delit'ed input, as we've already added it during de-lit. However,
1732 # hscpp will then add a {-# LINE 1 "$lit2pgm_hsc" -} to the top of the file,
1733 # which is not very informative (but harmless). Hence, we uniformly have
1734 # {-# LINE 1 "$in_lit2pgm" #-} as the first line to all cpp'ed hsc input.
1736 $to_do = "echo '{-# LINE 1 \"$in_lit2pgm\" -}' > $hscpp_hsc && ";
1738 if ($HsCpp eq $Cat) {
1739 $to_do .= "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
1740 push(@Files_to_tidy, $hscpp_hsc );
1741 &run_something($to_do, 'Ineffective C pre-processor');
1743 local($includes) = '-I' . join(' -I',@Include_dir);
1744 $to_do .= "$HsCpp $Verbose $genSPECS_flag @HsCpp_flags -D__HASKELL1__=$Haskell1Version -D__GLASGOW_HASKELL__=$GhcVersionInfo $includes $lit2pgm_hscpp >> $hscpp_hsc";
1745 push(@Files_to_tidy, $hscpp_hsc );
1746 &run_something($to_do, 'Haskellised C pre-processor');
1749 if ( $Only_preprocess_C ) {
1750 $to_do = "$Cat $hscpp_hsc";
1751 &run_something($to_do, '');
1759 sub runHscAndProcessInterfaces {
1760 local($ifile, $hscpp_hsc, $ifile_root, $ofile_target, $hifile_target) = @_;
1762 # $ifile is the original input file
1763 # $hscpp_hsc post-unlit, post-cpp, etc., input file
1764 # $ifile_root input filename minus suffix
1765 # $ofile_target the output file that we ultimately hope to produce
1766 # $hifile_target the .hi file ... (ditto)
1768 local($source_unchanged) = 1;
1770 # Check if the source file is up to date relative to the target; in
1771 # that case we say "source is unchanged" and let the compiler bail out
1772 # early if the import usage information allows it.
1774 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
1775 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
1777 # The informational messages below are now conditional on -v being set -- SOF
1778 if ( $ofile_target ne "_stdin.s" && ! -f $ofile_target ) {
1779 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n" if $Verbose;
1780 $source_unchanged = 0;
1783 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
1784 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
1786 if ( $hifile_target ne "_stdout" && ! -f $hifile_target ) {
1787 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n" if $Verbose;
1788 $source_unchanged = 0;
1791 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
1792 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
1794 if ( $ofile_target ne "_stdin.s" && $i_mtime > $o_mtime) {
1795 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n" if $Verbose;
1796 $source_unchanged = 0;
1799 # So if source_unchanged is still "1", we pass on the good news to the compiler
1800 # The -recomp flag can disable this, forcing recompilation
1801 if ($Do_recomp_chkr && $source_unchanged) {
1802 push(@HsC_flags, '-fsource-unchanged');
1807 &runHsc($ifile_root, $hsc_out, $hsc_hi, $going_interactive);
1809 # See if it bailed out early, saying nothing needed doing.
1810 # We work this out by seeing if it created an output .hi file
1812 if ( ! -f $hsc_hi && $ProduceHi !~ /-nohifile=/ ) {
1813 # Doesn't exist, so we bailed out early.
1814 # Tell the C compiler and assembler not to run
1815 $do_cc = 0; $do_as = 0;
1817 # Update dependency info, touch both object file and
1818 # interface file, so that the following invariant is
1821 # a dependent module's interface file should after recompilation
1822 # checking be newer than the interface files of its imports.
1824 # That is, if module A's interface file changes, then module B
1825 # (which import from A) needs to be checked.
1826 # If A's change does not affect B, which causes the compiler to bail
1827 # out early, we still need to touch the interface file of B. The reason
1828 # for this is that B may export A's interface.
1830 &run_something("touch $ofile_target",
1831 "Touch $ofile_target, to propagate dependencies") if $HscOut ne '-N=';
1832 &run_something("touch $hifile_target",
1833 "Touch $hifile_target, to propagate dependencies") if $ProduceHi =~ /-nohifile=/ ;
1837 # Didn't bail out early (new .hi file) so we thunder on
1839 # If non-interactive, heave in the consistency info at the end
1840 # NB: pretty hackish (depends on how $output is set)
1841 if ( ! $going_interactive ) {
1842 if ( $HscOut eq '-C=' ) {
1843 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
1845 } elsif ( $HscOut eq '-S=' ) {
1846 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
1847 $consist =~ s/,/./g;
1848 $consist =~ s/\//./g;
1849 $consist =~ s/-/_/g;
1850 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
1851 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
1853 &run_something($to_do, 'Pin on Haskell consistency info');
1857 # Interface-handling is important enough to live off by itself
1858 if ( $ProduceHi !~ /-nohifile=/ ) { # If we've produced one, process it.
1859 require('ghc-iface.prl') || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
1860 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
1862 # if we're going to split up object files,
1863 # we inject split markers into the .hc file now
1864 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
1865 &inject_split_markers ( $hsc_out );
1868 # save a copy of the .hc file, even if we are carrying on...
1869 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
1870 &saveIntermediate($ifile_root , "hc" , $hsc_out);
1880 local($ifile_root, $hsc_out, $hsc_hi, $going_interactive) = @_;
1882 # prepend comma to HsP flags (so hsc can tell them apart...)
1883 foreach $a ( @HsP_flags ) { $a = ",$a" unless $a =~ /^,/; }
1885 &makeHiMap() unless $HiMapDone;
1886 #print STDERR "HiIncludes: $HiIncludeString\n";
1887 push(@HsC_flags, "-himap=$HiIncludeString");
1889 # here, we may produce .hc/.s and/or .hi files
1890 local($output) = '';
1891 #@Files_to_tidy = ();
1893 if ( $going_interactive ) {
1894 # don't need .hi unless going to show it on stdout:
1895 $ProduceHi = '-nohifile=' if ! $HiOnStdout;
1896 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
1899 # set up for producing output/.hi; note that flag twiddling
1900 # may mean that nothing will actually be produced:
1901 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out";
1902 push(@Files_to_tidy, $hsc_hi, $hsc_out );
1904 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
1905 if ( $CollectingGCstats ) {
1906 push(@HsC_rts_flags, "-S$ifile_root.stat");
1907 push(@Files_to_tidy, "$ifile_root.stat");
1910 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
1911 # emit nofibbish time/bytes-alloc stats to stderr;
1912 # see later .stat file post-processing
1913 print STDERR "warning: both -Rgc-stats and -Rghc-timing used, -Rghc-timing wins." if $CollectingGCstats;
1914 push(@HsC_rts_flags, "-s$Tmp_prefix.stat");
1915 push(@Files_to_tidy, "$Tmp_prefix.stat");
1919 if ($Specific_dump_file ne '') {
1920 $dump = "2>> $Specific_dump_file";
1921 $Using_dump_file = 1;
1925 $to_do = "$HsC @HsP_flags ,$hscpp_hsc $dump @HsC_flags $CoreLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
1926 &run_something($to_do, 'Haskell compiler');
1928 # finish business w/ nofibbish time/bytes-alloc stats
1929 &process_ghc_timings() if $CollectGhcTimings;
1933 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
1934 of (module-name, pathname) pairs, one per line, separated by a space.
1937 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1941 # collect in %HiMap; write later; also used elsewhere in driver
1943 local($mod, $path, $d, $e);
1945 # reset the global variables:
1947 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1949 foreach $d ( @Import_dir ) {
1950 if ($HiIncludeString) {
1951 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix}";
1953 $HiIncludeString = "$d%.${HiSuffix}";
1958 foreach $d ( @SysImport_dir ) {
1959 if ($HiIncludeString) {
1960 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix_prelude}";
1962 $HiIncludeString = "${d}%.${HiSuffix_prelude}";
1971 %************************************************************************
1973 \section[Driver-misc-utils]{Miscellaneous utilities}
1975 %************************************************************************
1977 %************************************************************************
1979 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
1981 %************************************************************************
1985 local($ofile,$def_suffix) = @_;
1987 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
1991 local($orig_file, $def_suffix) = @_;
1992 if ($Specific_output_dir eq '') { # do nothing
1993 &osuf_ify($orig_file, $def_suffix);
1995 local ($orig_file_only);
1996 ($orig_file_only = $orig_file) =~ s|.*/||;
1997 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
2004 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
2006 local($includes) = '-I' . join(' -I', @Include_dir);
2009 local($c_flags) = "@CcBoth_flags";
2010 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2012 # "input" files to use that are not in some weird directory;
2013 # to help C compilers grok .hc files [ToDo: de-hackify]
2014 local($cc_help) = "ghc$$.c";
2015 local($cc_help_s) = "ghc$$.s";
2018 $s_output = ($is_hc_file || $TargetPlatform =~ /^(powerpc|rs6000|hppa|i386)/) ? $cc_as_o : $cc_as;
2019 $c_flags .= " @CcRegd_flags";
2020 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2022 # C compiler won't like the .hc extension. So we create
2023 # a tmp .c file which #include's the needful.
2024 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2025 if ( $is_hc_file ) {
2027 #ifdef __STG_GCC_REGS__
2028 # if ! (defined(MAIN_REG_MAP) || defined(MARK_REG_MAP) || defined(SCAN_REG_MAP) || defined(SCAV_REG_MAP) || defined(FLUSH_REG_MAP))
2029 # define MAIN_REG_MAP
2032 #include "stgdefs.h"
2034 # user may have asked for #includes to be injected...
2035 print TMP @CcInjects if $#CcInjects >= 0;
2037 # heave in the consistency info
2038 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2040 # and #include the real source
2041 print TMP "#include \"$hsc_out\"\n";
2042 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2044 # Don't redirect stderr into intermediate file if slamming output onto stdout (e.g., with -E)
2045 local($fuse_stderr) = "2>&1" if ! $Only_preprocess_hc;
2046 local($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 )";
2047 # note: __GLASGOW_HASKELL__ is pointedly *not* #defined at the C level.
2049 if ( $Only_preprocess_hc ) { # HACK ALERT!
2050 $to_do =~ s/ -S\b//g;
2052 push(@Files_to_tidy, $cc_help, $cc_help_s, $s_output );
2053 $PostprocessCcOutput = 1 if ! $Only_preprocess_hc; # hack, dear hack...
2054 &run_something($to_do, 'C compiler');
2055 $PostprocessCcOutput = 0;
2056 if ( $Only_preprocess_hc ) {
2057 system("$Cat $Tmp_prefix.ccout");
2059 unlink($cc_help, $cc_help_s);
2065 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2067 if ( $is_hc_file ) {
2068 # dynamically load assembler-fiddling code, which we are about to use:
2069 require('ghc-asm.prl')
2070 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2073 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2076 # post-process the assembler [.hc files only]
2077 &mangle_asm($cc_as_o, $cc_as);
2081 #OLD: local($target) = 'oops';
2082 #OLD: $target = '-alpha' if $TargetPlatform =~ /^alpha-/;
2083 #OLD: $target = '-hppa' if $TargetPlatform =~ /^hppa/;
2084 #OLD: $target = '-old-asm' if $TargetPlatform =~ /^i386-/;
2085 #OLD: $target = '-m68k' if $TargetPlatform =~ /^m68k-/;
2086 #OLD: $target = '-mips' if $TargetPlatform =~ /^mips-/;
2087 #OLD: $target = '' if $TargetPlatform =~ /^powerpc-/;
2088 #OLD: $target = '-solaris' if $TargetPlatform =~ /^sparc-sun-solaris2/;
2089 #OLD: $target = '-sparc' if $TargetPlatform =~ /^sparc-sun-sunos4/;
2091 #OLD: if ( $target ne '' ) {
2092 #OLD: require("ghc-asm$target.prl")
2093 #OLD: || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm$target.prl!\n");
2094 #OLD: &mangle_asm($cc_as_o, "$cc_as-2"); # the OLD one!
2095 #OLD: &run_something("$Cmp -s $cc_as-2 $cc_as || $Diff $cc_as-2 $cc_as 1>&2 || exit 0",
2096 #OLD: "Diff'ing old and new mangled .s files"); # NB: to stderr
2099 } elsif ($TargetPlatform =~ /^hppa/) {
2100 # minor mangling of non-threaded files for hp-pa only
2101 require('ghc-asm.prl')
2102 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2103 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2105 } elsif ($TargetPlatform =~ /^powerpc|^rs6000/) {
2106 # minor mangling of non-threaded files for powerpcs and rs6000s
2107 require('ghc-asm.prl')
2108 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-powerpc.prl!\n");
2109 &mini_mangle_asm_powerpc($cc_as_o, $cc_as);
2110 } elsif ($TargetPlatform =~ /^i386/) {
2111 # extremely-minor OFFENSIVE mangling of non-threaded just one file
2112 require('ghc-asm.prl')
2113 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2114 &mini_mangle_asm_i386($cc_as_o, $cc_as);
2117 # save a copy of the .s file, even if we are carrying on...
2118 #if ($do_as && $Keep_s_file_too) {
2119 # &saveIntermediate($ifile_root , "s" , $cc_as);
2126 local($as_out, $ifile_root) = @_;
2128 local($asmblr) = ( $As ) ? $As : $CcRegd;
2130 if ( ! $SplitObjFiles ) {
2131 local($to_do) = "$asmblr -o $as_out -c @As_flags $cc_as";
2132 push(@Files_to_tidy, $as_out );
2133 &run_something($to_do, 'Unix assembler');
2135 } else { # more complicated split-ification...
2137 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2139 # If -odir is used, great, just pin it in front of the
2140 # generated split file names. If it hasn't been set, we
2141 # snatch it from the ifile_root.
2145 if ( $Specific_output_dir eq '' ) {
2146 $Specific_output_dir = ${ifile_root};
2149 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2150 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2151 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2152 push(@Files_to_tidy, $split_out );
2154 &run_something($to_do, 'Unix assembler');
2160 %************************************************************************
2162 \subsection[Driver-run-something]{@run_something@: Run a phase}
2164 %************************************************************************
2168 local($str_to_do, $tidy_name) = @_;
2170 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2171 print STDERR "$str_to_do\n" if $Verbose;
2173 if ($Using_dump_file) {
2174 open(DUMP, ">> $Specific_dump_file")
2175 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2176 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2178 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2181 local($return_val) = 0;
2183 if ( length($str_to_do) > 4000) {
2184 # 4000 - on the random side, just like the *real* ARG_MAX
2187 # With some shells, command lines of this length may
2188 # very well cause trouble. To safeguard against this, we squirrel the
2189 # command into a file and exec that.
2190 local ($sh) = $ENV{'REAL_SHELL'};
2191 print STDERR "Backup plan A: saving cmd line in ${Tmp_prefix}.sh and executing that with $sh\n" if $Verbose;
2192 open (TEMP, "> ${Tmp_prefix}.sh") ||
2193 &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.sh'\n");
2194 print TEMP "$Time $str_to_do\n";
2196 &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.sh'\n");
2197 system("$sh $Tmp_prefix.sh");
2200 unlink "${Tmp_prefix}.sh";
2202 system("$Time $str_to_do");
2206 if ( $PostprocessCcOutput ) { # hack, continued
2207 open(CCOUT, "< $Tmp_prefix.ccout")
2208 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2210 next if /attribute directive ignored/;
2211 next if /call-clobbered/;
2212 next if /from .*COptRegs\.lh/;
2213 next if /from .*(stg|rts)defs\.h:/;
2214 next if /from ghc\d+.c:\d+:/;
2215 next if /from .*\.lc/;
2216 next if /from .*SMinternal\.l?h/;
2217 next if /ANSI C does not support \`long long\'/;
2218 next if /warning:.*was declared \`extern\' and later \`static\'/;
2219 next if /warning: assignment discards \`const\' from pointer target type/;
2220 next if /: At top level:$/;
2221 next if /: In function \`.*\':$/;
2222 next if /\`ghc_cc_ID\' defined but not used/;
2225 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2228 if ($return_val != 0) {
2229 if ($Using_dump_file) {
2230 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2233 &tidy_up_and_die($return_val, '');
2235 $Using_dump_file = 0;
2239 %************************************************************************
2241 \subsection[Driver-ghc-timing]{Emit nofibbish GHC timings}
2243 %************************************************************************
2245 NB: nearly the same as in @runstdtest@ script.
2248 sub process_ghc_timings {
2249 local($StatsFile) = "$Tmp_prefix.stat";
2250 local($SysSpecificTiming) = 'ghc';
2252 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2253 local($max_live) = 0;
2254 local($tot_live) = 0; # for calculating residency stuff
2255 local($tot_samples) = 0;
2258 if (! /Minor/ && /^\s*\d+\s+\d+\s+(\d+)\s+\d+\.\d+\%/ ) {
2259 $max_live = $1 if $max_live < $1;
2263 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2265 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2266 $MaxResidency = $1; $ResidencySamples = $2;
2269 $GCs = $1 if /^\s*([0-9,]+) garbage collections? performed/;
2271 # The presence of -? in the following pattern is only there to
2272 # accommodate 0.29 && <= 2.05 RTS'
2273 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*-?(\d+\.\d\d)s elapsed\)/ ) {
2274 $InitTime = $1; $InitElapsed = $2;
2275 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2276 $MutTime = $1; $MutElapsed = $2;
2277 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2278 $GcTime = $1; $GcElapsed = $2;
2281 close(STATS) || die "Failed when closing $StatsFile\n";
2282 if ( $tot_samples > 0 ) {
2283 $ResidencySamples = $tot_samples;
2284 $MaxResidency = $max_live;
2285 $AvgResidency = int ($tot_live / $tot_samples) ;
2288 # warn about what we didn't find
2289 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2290 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2291 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2292 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2293 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2294 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2295 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2296 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2298 # things we didn't necessarily expect to find
2299 $MaxResidency = 0 unless defined($MaxResidency);
2300 $AvgResidency = 0 unless defined($AvgResidency);
2301 $ResidencySamples = 0 unless defined($ResidencySamples);
2304 $BytesAlloc =~ s/,//g;
2305 $MaxResidency =~ s/,//g;
2307 $InitTime =~ s/,//g;
2308 $InitElapsed =~ s/,//g;
2310 $MutElapsed =~ s/,//g;
2312 $GcElapsed =~ s/,//g;
2314 # print out what we found
2315 print STDERR "<<$SysSpecificTiming: ",
2316 "$BytesAlloc bytes, $GCs GCs, $AvgResidency/$MaxResidency avg/max bytes residency ($ResidencySamples samples), $InitTime INIT ($InitElapsed elapsed), $MutTime MUT ($MutElapsed elapsed), $GcTime GC ($GcElapsed elapsed)",
2317 " :$SysSpecificTiming>>\n";
2324 %************************************************************************
2326 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2328 %************************************************************************
2332 local($to_do) = "\n$Rm $Tmp_prefix*";
2333 if ( $Tmp_prefix !~ /^\s*$/ ) {
2334 print STDERR "$to_do\n" if $Verbose;
2339 sub tidy_up_and_die {
2340 local($return_val, $msg) = @_;
2342 # delete any files to tidy
2343 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2344 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2348 exit (($return_val == 0) ? 0 : 1);
2352 %************************************************************************
2354 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2356 %************************************************************************
2358 Some command-line arguments take an argument, e.g.,
2359 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2360 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2361 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2363 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2364 gobble the second argument (and probably set the heapsize to something
2368 local(*Args, $option, $rest_of_arg) = @_;
2370 if ($rest_of_arg ne '') {
2371 return($rest_of_arg);
2372 } elsif ($#Args >= 0) {
2373 local($temp) = $Args[0]; shift(@Args);
2376 print STDERR "$Pgm: no argument following $option option\n";
2387 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2389 foreach $f ( @HsC_antiflags ) {
2390 return(0) if $flag eq $f;
2392 # foreach $f ( @HsC_flags ) {
2393 # return(0) if $flag eq $f;
2398 sub squashHscFlag { # pretty terrible
2402 foreach $f ( @HsC_flags ) {
2403 if ($flag eq $f) { $f = ''; }
2411 foreach $f ( @flags ) {
2412 push( @HsC_flags, $f ) if &isntAntiFlag($f);
2417 Source files may have {-# OPTIONS ... #-} pragmas at the top, containing
2418 command line options we want to append to collection of commands specified
2419 directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell
2420 file for any such pragmas:
2423 sub check_for_source_options {
2424 local($file,$ifile) = @_;
2425 local($comment_start,$comment_end);
2427 if ($ifile =~ /\.hc$/ ||
2430 $ifile =~ /_s$/ ) { # `Real' C intermediate
2431 $comment_start = "/\\*";
2432 $comment_end = "\\*/";
2433 } else { # Assume it is a file containing Haskell source
2434 $comment_start = "{-#";
2435 $comment_end = "#-}";
2438 open(FILE,$file) || return(1); # No big loss
2441 if ( /^${comment_start} OPTIONS (.*)${comment_end}$/ ) {
2442 # add the options found at the back of the command line.
2443 local(@entries) = split(/\s+/,$1);
2444 print STDERR "Found OPTIONS " . join(' ',@entries) . " in $file\n" if $Verbose;
2445 push(@File_options, @entries);
2447 elsif ( /^$/ ) { # ignore empty lines
2450 elsif ( /^#line.+$/ ) { # ignore comment lines (unused..ToDo: rm )
2453 elsif ( /^{-# LINE.+$/ ) { # ignore line pragmas
2456 else { # stop looking, something non-empty / not
2457 # ${comment_start} OPTIONS .. ${comment_end} encountered.
2458 close(FILE);return(0);
2467 We split the initial argv up into three arrays:
2473 the reason for doing so is to be able to deal
2474 with {-# OPTIONS #-} pragma in source files properly.
2480 arg: while($_ = $args[0]) {
2482 # sigh, we have to deal with these -option arg specially here.
2483 /^-(tmpdir|odir|ohi|o|isuf|osuf|hisuf|hisuf-prelude|odump|syslib)$/ &&
2484 do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; };
2485 /^--?./ && do { push(@Cmd_opts, $_); next arg; };
2487 if (/\.([^_]+_)?[oa]$/) {
2488 push(@Link_file, $_);
2490 push(@Input_file, $_);
2493 # input files must exist:
2495 print STDERR "$Pgm: input file doesn't exist: $_\n";
2503 When saving an intermediate file (.hc or .s) away, we
2504 have to prefix any OPTIONS found in the original source file.
2507 sub saveIntermediate {
2508 local ($final,$suffix,$tmp)= @_ ;
2511 # $final -- root of where to park ${final}.${suffix}
2512 # $tmp -- temporary file where hsc put the intermediate file.
2514 # Delete the old file
2515 $to_do = "$Rm ${final}.${suffix}"; &run_something($to_do, "Removing old .${suffix} file");
2517 if ( $#File_options >= 0 ) { # OPTIONS found in Haskell source unit
2518 # Add OPTION comment to the top of the generated .${suffix} file
2519 open(TEMP, "> ${final}.${suffix}") || &tidy_up_and_die(1,"Can't open ${final}.${suffix}\n");
2520 print TEMP "/* OPTIONS " . join(' ',@File_options) . " */\n";
2522 print STDERR "Prepending OPTIONS: " . join(' ',@File_options) . " to ${final}.${suffix}\n" if $Verbose;
2524 $to_do = "$Cat $tmp >> ${final}.${suffix}";
2525 &run_something($to_do, "Saving copy of .${suffix} file");
2532 Command-line processor
2538 # can't use getopt(s); what we want is too complicated
2540 arg: while($_ = $Args[0]) {
2543 #---------- help -------------------------------------------------------
2544 if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; }
2546 #-----------version ----------------------------------------------------
2547 /^--version$/ && do { print STDERR "${PROJECTNAME}, version ${PROJECTVERSION}, patchlevel ${PROJECTPATCHLEVEL}\n"; exit $Status; };
2549 #---------- verbosity and such -----------------------------------------
2550 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
2552 #---------- what phases are to be run ----------------------------------
2553 /^-(no-)?recomp/ && do { $Do_recomp_chkr = ($1 eq '') ? 1 : 0; next arg; };
2555 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
2556 # change the global default:
2557 # we won't run cat; we'll run the real thing
2559 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
2561 # stop after generating C
2563 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
2564 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
2566 # leave out actual C generation (debugging) [also turns off interface gen]
2568 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
2569 # _do_ generate an interface; usually used as: -noC -hi
2571 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
2572 # don't generate an interface (even if generating C)
2574 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
2575 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
2576 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
2577 /^-keep-hi-diffs$/ && do { $Keep_HiDiffs = 1; next arg; };
2579 # show/disable diffs if the interface file changes
2581 /^-E$/ && do { push(@CcBoth_flags, '-E');
2582 $Only_preprocess_C = 1;
2583 $Do_as = 0; $Do_lnkr = 0; next arg; };
2584 # stop after preprocessing C
2585 /^-M$/ && do { $Only_generate_deps = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2586 # only generate dependency information.
2587 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
2588 # stop after generating assembler
2590 /^-c$/ && do { $Do_lnkr = 0; next arg; };
2591 # stop after generating .o files
2593 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
2594 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
2595 # don't do consistency-checking after a link
2597 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', '');
2598 $Tmp_prefix = "$Tmp_prefix/ghc$$";
2599 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
2601 # use an alternate directory for temp files
2603 #---------- redirect output --------------------------------------------
2605 # -o <file>; applies to the last phase, whatever it is
2606 # "-o -" sends it to stdout
2607 # if <file> has a directory component, that dir must already exist
2609 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', '');
2611 # Hack, of the worst sort: don't do validation of
2612 # odir argument if you're using -M (dependency generation).
2614 if ( ! $Only_generate_deps && ! -d $Specific_output_dir) {
2615 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
2620 /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', '');
2621 if ($Specific_output_file ne '-'
2622 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
2623 local($dir_part) = $1;
2624 if (! -d $dir_part) {
2625 print STDERR "$Pgm: no such directory: $dir_part\n";
2631 # NB: -isuf not documented yet (because it doesn't work yet)
2632 /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', '');
2633 if ($Isuffix =~ /\./ ) {
2634 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
2639 /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', '');
2640 if ($Osuffix =~ /\./ ) {
2641 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
2646 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
2647 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', '');
2648 if ($Specific_hi_file ne '-'
2649 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
2650 local($dir_part) = $1;
2651 if (! -d $dir_part) {
2652 print STDERR "$Pgm: no such directory: $dir_part\n";
2658 # The suffix to use when looking for interface files
2659 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', '');
2660 if ($HiSuffix =~ /\./ ) {
2661 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
2665 # ToDo: remove, not a `normal' user thing to do (should be automatic)
2666 /^-hisuf-prelude$/ && do { $HiSuffix_prelude = &grab_arg_arg(*Args,'-hisuf-prelude', '');
2667 if ($HiSuffix =~ /\./ ) {
2668 print STDERR "$Pgm: -hisuf-prelude suffix shouldn't contain a .\n";
2672 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', '');
2673 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
2674 local($dir_part) = $1;
2675 if (! -d $dir_part) {
2676 print STDERR "$Pgm: no such directory: $dir_part\n";
2682 #-------------- scc & Profiling Stuff ----------------------------------
2684 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
2687 # generate auto SCCs on top level bindings
2688 # -auto-all = all top level bindings
2689 # -auto = only top level exported bindings
2690 $PROFauto = ( /-all/ )
2691 ? '-fauto-sccs-on-all-toplevs'
2692 : '-fauto-sccs-on-exported-toplevs';
2695 /^-caf-all/ && do { # generate individual CAF SCC annotations
2696 $PROFcaf = '-fauto-sccs-on-individual-cafs';
2699 /^-ignore-scc$/ && do {
2700 # forces ignore of scc annotations even if profiling
2701 $PROFignore_scc = '-W';
2704 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
2707 /^-unprof-scc-auto/ && do {
2708 # generate auto SCCs on top level bindings when not profiling.
2709 # Used to measure optimisation effects of presence of sccs.
2710 $UNPROFscc_auto = ( /-all/ )
2711 ? '-fauto-sccs-on-all-toplevs'
2712 : '-fauto-sccs-on-exported-toplevs';
2715 #--------- ticky/concurrent/parallel -----------------------------------
2716 # we sort out the details a bit later on
2718 /^-concurrent$/ && do { $CONCURing = 'c'; next arg; }; # concurrent Haskell
2719 /^-gransim$/ && do { $GRANing = 'g'; next arg; }; # GranSim
2720 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
2721 /^-parallel$/ && do { $PARing = 'p'; next arg; }; # parallel Haskell
2723 #-------------- "user ways" --------------------------------------------
2725 (/^-user-setup-([a-oA-Z])$/ ) &&
2727 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
2729 local($stuff) = $UserSetupOpts{$BuildTag};
2730 local(@opts) = split(/\s+/, $stuff);
2732 # feed relevant ops into the arg-processing loop (if any)
2733 unshift(@Args, @opts) if $#opts >= 0;
2737 #---------- set search paths for libraries and things ------------------
2739 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
2740 # prepends the items to the list); -I is for including C .h files.
2742 /^-i$/ && do { @Import_dir = (); # import path cleared!
2743 @SysImport_dir = ();
2744 print STDERR "WARNING: import paths cleared by `-i'\n";
2747 /^-i(.*)/ && do { local(@new_items)
2748 = split( /:/, &grab_arg_arg(*Args,'-i', $1));
2749 unshift(@Import_dir, @new_items);
2752 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; };
2753 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; };
2754 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; };
2756 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1);
2757 print STDERR "$Pgm: no such system library (-syslib): $syslib\n",
2758 $Status++ unless $syslib =~ /^(hbc|ghc|posix|contrib)$/;
2760 unshift(@SysImport_dir,
2762 ? "$InstSysLibDir/$syslib/imports"
2763 : "$TopPwd/hslibs/$syslib/src");
2765 if ( ${INSTALLING} ) {
2766 push(@SysLibrary_dir,
2767 ("$InstSysLibDir"));
2769 push(@SysLibrary_dir,
2770 ("$TopPwd/hslibs/$syslib"
2771 ,"$TopPwd/hslibs/$syslib/cbits"));
2774 push(@SysLibrary, "-lHS$syslib");
2775 push(@SysLibrary, "-lHS${syslib}_cbits")
2776 unless $syslib eq 'contrib'; #HACK! it has no cbits
2780 #=======================================================================
2781 # various flags that we can harmlessly send to one program or another
2782 # (we will later "reclaim" some of the compiler ones now sent to gcc)
2783 #=======================================================================
2785 #---------- this driver itself (ghc) -----------------------------------
2786 # these change what executable is run for each phase:
2787 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
2788 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
2789 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
2790 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
2791 /^-pgma(.*)$/ && do { $As = $1; next arg; };
2792 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
2793 /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; };
2795 #---------- the get-anything-through opts (all pgms) -------------------
2796 # these allow arbitrary option-strings to go to any phase:
2797 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
2798 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
2799 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
2800 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
2801 /^-optcpp(.*)$/ && do { push(@Cpp_define, $1); $Only_preprocess_hc = ($1 eq "-E"); next arg; };
2802 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
2803 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
2804 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
2805 /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; };
2807 #---------- Haskell C pre-processor (hscpp) ----------------------------
2808 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; };
2809 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; };
2811 /^-genSPECS/ && do { $Cpp_flag_set = 1;
2812 $genSPECS_flag = $_;
2815 #---------- post-Haskell "assembler"------------------------------------
2816 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
2817 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
2819 #---------- Haskell compiler (hsc) -------------------------------------
2821 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
2822 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
2824 /^-fhaskell-1\.3$/ && do { next arg; }; # a no-op right now
2826 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
2828 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
2829 # don't do stack checking using page fault `trick'.
2831 /^-fstack-check$/ && do { $StkChkByPageFaultOK = 0; next arg; };
2833 # have the compiler proper generate concurrent code,
2834 # really only used when you want to configure your own
2835 # special user compilation way. (Use -concurrent when
2836 # compiling `Concurrent Haskell' programs).
2838 # (ditto for -fgransim, fscc-profiling and -fticky-ticky)
2840 /^-fconcurrent$/ && do { push(@HsC_flags,$_); next arg; };
2841 /^-fscc-profiling$/ && do { push(@HsC_flags,$_); next arg; };
2842 /^-fticky-ticky$/ && do { push(@HsC_flags,$_); next arg; };
2843 /^-fgransim$/ && do { push(@HsC_flags,$_); next arg; };
2845 /^-split-objs/ && do {
2846 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|rs6000|sparc)-/ ) {
2848 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
2853 push(@HsC_flags, "-fglobalise-toplev-names");
2854 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
2856 require('ghc-split.prl')
2857 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
2862 && do { push(@HsC_flags, $_);
2863 push(@HsP_flags, '-N');
2865 # push(@HsC_flags, '-fshow-import-specs');
2869 /^-fspeciali[sz]e-unboxed$/
2870 && do { $Oopt_DoSpecialise = '-fspecialise';
2871 $Oopt_SpecialiseUnboxed = '-fspecialise-unboxed';
2874 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
2875 /^-fno-speciali[sz]e$/
2876 && do { $Oopt_DoSpecialise = ''; next arg; };
2879 # Now the foldr/build options, which are *on* by default (for -O).
2882 && do { $Oopt_FoldrBuild = 1;
2883 $Oopt_FB_Support = '-fdo-arity-expand';
2887 /^-fno-foldr-build$/
2888 && do { $Oopt_FoldrBuild = 0;
2889 $Oopt_FB_Support = '';
2892 /^-fno-foldr-build-rule$/
2893 && do { $Oopt_FoldrBuild = 0;
2896 /^-fno-enable-tech$/
2897 && do { $Oopt_FB_Support = '';
2900 /^-fno-snapback-to-append$/
2901 && do { $Oopt_FoldrBuildInline .= ' -fdo-not-fold-back-append ';
2904 # --------------- Renamer -------------
2907 /^-fno-prune-tydecls$/ && do { push(@HsC_flags, $_); next arg; };
2908 /^-fno-prune-instdecls$/ && do { push(@HsC_flags, $_); next arg; };
2912 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
2913 /^-fvia-[cC]$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
2917 /^(-funfolding-use-threshold)(.*)$/
2918 && do { $Oopt_UnfoldingUseThreshold = $1 . &grab_arg_arg(*Args,$1, $2);
2921 /^(-fmax-simplifier-iterations)(.*)$/
2922 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2);
2924 /^(-fshow-simplifier-progress)/
2925 && do { $Oopt_ShowSimplifierProgress = $1;
2928 /^-fno-pedantic-bottoms$/
2929 && do { $Oopt_PedanticBottoms = ''; next arg; };
2931 /^-fdo-monad-eta-expansion$/
2932 && do { $Oopt_MonadEtaExpansion = $_; next arg; };
2934 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
2935 && do { push(@HsC_flags, $_); next arg; };
2937 /^(-freturn-in-regs-threshold)(.*)$/
2938 && do { local($what) = $1;
2939 local($num) = &grab_arg_arg(*Args,$what, $2);
2940 if ($num < 2 || $num > 8) {
2941 die "Bad experimental flag: $_\n";
2943 $HscOut = '-C='; # force using C compiler
2944 push(@HsC_flags, "$what$num");
2945 push(@CcRegd_flags, "-D__STG_REGS_AVAIL__=$num");
2949 # --------------- Warnings etc. ------
2951 /^-fshow-import-specs/
2952 && do { push(@HsC_flags, $_); next arg; };
2954 /^-fwarn-(.*)$/ && do { push(@HsC_flags, $_); next arg; };
2956 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
2957 &squashHscFlag("-f$1");
2960 /^-W$/ && do { push(@HsC_flags, @MinusWOpts); next arg; };
2961 /^-Wall$/ && do { push(@HsC_flags, @MinusWallOpts); next arg; };
2962 /^-Wnot$/ && do { foreach (@Hsc_flags) {
2963 /^-fwarn-(.*)$/ && do { $_=''; };
2965 push(@HsC_antiflags, @StandardWarnings);
2968 # --------------- platform specific flags (for gcc mostly) ----------------
2970 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes,
2971 # for 2.6.x..?, does not apply for 2.7.2
2973 unshift(@CcBoth_flags, ( $_ ));
2976 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
2977 && do { # for GCC for SPARCs
2978 unshift(@CcBoth_flags, ( $_ ));
2981 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
2982 $StolenX86Regs = $1;
2985 #*************** ... and lots of debugging ones (form: -d* )
2987 # -d(no-)core-lint is done this way so it is turn-off-able.
2988 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
2989 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
2990 # Ditto for STG lint
2991 /^-dstg-lint/ && do { $StgLint = '-dstg-lint'; next arg; };
2992 /^-dno-stg-lint/ && do { $StgLint = ''; next arg; };
2994 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
2995 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
2996 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
2997 /^-dshow-rn-stats/ && do { push(@HsC_flags, $_); next arg; };
2998 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
2999 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
3000 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
3001 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
3003 #*************** ... and now all these -R* ones for its runtime system...
3005 /^-Rscale-sizes?(.*)/ && do {
3006 $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1);
3009 /^(-H|-Rmax-heapsize)(.*)/ && do {
3010 local($heap_size) = &grab_arg_arg(*Args,$1, $2);
3011 if ($heap_size =~ /(\d+)[Kk]$/) {
3012 $heap_size = $1 * 1000;
3013 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
3014 $heap_size = $1 * 1000 * 1000;
3015 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
3016 $heap_size = $1 * 1000 * 1000 * 1000;
3018 if ($heap_size <= 0) {
3019 print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n";
3020 $Specific_heap_size = 0;
3022 # if several heap sizes given, take the largest...
3023 } elsif ($heap_size >= $Specific_heap_size) {
3024 $Specific_heap_size = $heap_size;
3026 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n";
3030 /^(-K|Rmax-(stk|stack)size)(.*)/ && do {
3032 local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3);
3033 if ($stk_size =~ /(\d+)[Kk]$/) {
3034 $stk_size = $1 * 1000;
3035 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
3036 $stk_size = $1 * 1000 * 1000;
3037 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
3038 $stk_size = $1 * 1000 * 1000 * 1000;
3040 if ($stk_size <= 0) {
3041 print STDERR "$Pgm: resetting stack-size to zero!!! $stk_size\n";
3042 $Specific_stk_size = 0;
3044 # if several stack sizes given, take the largest...
3045 } elsif ($stk_size >= $Specific_stk_size) {
3046 $Specific_stk_size = $stk_size;
3048 print STDERR "$Pgm: ignoring stack-size-setting option ($flag $stk_size)...not the largest seen\n";
3052 /^-Rgc-stats$/ && do { $CollectingGCstats++;
3053 # the two RTSs do this diff ways; we will try to compensate
3056 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
3058 #---------- C high-level assembler (gcc) -------------------------------
3059 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
3061 # -dgcc-lint is a useful way of making GCC very fussy.
3062 # From alan@spri.levels.unisa.edu.au (Alan Modra).
3063 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
3064 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
3065 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
3067 # inject "#include <wurble>" into the compiler's C output!
3069 /^-#include(.*)/ && do {
3070 local($to_include) = &grab_arg_arg(*Args,'-#include', $1);
3071 push(@CcInjects, "#include $to_include\n");
3074 #---------- Linker (gcc, really) ---------------------------------------
3076 /^-static$/ && do { push(@Ld_flags, $_); next arg; };
3078 #---------- mixed cc and linker magic ----------------------------------
3079 # this optimisation stuff is finally sorted out later on...
3081 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
3083 /^-O[1-2]?$/ && do {
3084 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
3085 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
3087 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
3090 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
3092 /^-Ofile(.*)/ && do {
3094 local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1);
3095 @HsC_minusO3_flags = ();
3097 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
3100 s/\#.*//; # death to comments
3101 s/[ \t]+//g; # death to whitespace
3102 next if /^$/; # ditto, blank lines
3103 s/([()*{}])/\\$1/g; # protect shell metacharacters
3105 push(@CcBoth_flags, $1);
3107 push(@HsC_minusO3_flags, $_);
3113 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
3114 # in the consistency info
3118 #---------- linking .a file --------------------------------------------
3120 /^-Main(.*)/ && do {
3121 # specifies main or mainPrimIO to be linked
3125 #---------- catch unrecognized flags -----------------------------------
3128 print STDERR "$Pgm: unrecognised option: $_\n";
3134 } # end of processArgs