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 ProjectVersionInt ProjectPatchLevel
106 bindir libdir libexecdir datadir
110 GHC_LIB_DIR GHC_RUNTIME_DIR GHC_UTILS_DIR GHC_INCLUDE_DIR
112 GHC_OPT_HILEV_ASM GhcWithNativeCodeGen
114 GHC_UNLIT GHC_HSCPP GHC_HSC GHC_SYSMAN
118 WAY_*_NAME WAY_*_HC_OPTS
124 Establish what executables to run for the various phases, what the
125 default options are for those phases, and other similar boring stuff.
128 select(STDERR); $| = 1; select(STDOUT); # no STDERR buffering, please.
130 $TargetPlatform = $TARGETPLATFORM;
132 $TopPwd = "${TOP_PWD}";
133 $InstBinDirGhc = "${bindir}";
134 $InstLibDirGhc = "${libdir}";
136 # Normally the same as InstLibDirGhc, but we accommodate
137 # for it being separate.
139 $InstLibExecDirGhc = "${libexecdir}";
140 $InstDataDirGhc = "${datadir}";
142 $Status = 0; # just used for exit() status
145 # set up signal handler
146 sub quit_upon_signal { &tidy_up_and_die(1, ''); }
147 $SIG{'INT'} = 'quit_upon_signal';
148 $SIG{'QUIT'} = 'quit_upon_signal';
150 # where to get "require"d .prl files at runtime (poor man's dynamic loading)
151 # (use LIB, not DATA, because we can't be sure of arch-independence)
152 @INC = ( ( $INSTALLING ) ? $InstLibDirGhc
153 : "$TopPwd/${CURRENT_DIR}" );
155 if ( $ENV{'TMPDIR'} ) { # where to make tmp file names
156 $Tmp_prefix = ($ENV{'TMPDIR'} . "/ghc$$");
158 print STDERR "TMPDIR has not been set to anything useful!\n" if (${TMPDIR} eq '');
159 $Tmp_prefix ="${TMPDIR}/ghc$$"; # TMPDIR set via Makefile when booting..
160 $ENV{'TMPDIR'} = ${TMPDIR}; # set the env var as well
163 # Some shells run into real trouble when command line and environment
164 # gets big (e.g., cmd lines of >4K to /bin/sh causes havoc on our
165 # Solaris-2.5.1 boxes - even though sysconf(_SC_ARG_MAX) reports 1M ...).
166 # To work around any such */bin/sh* problems, we will scribble such
167 # awfully long command lines into a temp file and exec that temp file
168 # with $(REAL_SHELL) (don't use the SHELL variable directly as this
169 # will normally get you the wrong thing when the driver is invoked
170 # from within `make'). If the REAL_SHELL variable isn't set, you'll
171 # get SHELL. This is all a terrible hack. (in case you hadn't reached
172 # the same conclusion by now :-)
176 if ( ! $ENV{'REAL_SHELL'} ) {
177 $ENV{'REAL_SHELL'} = $ENV{'SHELL'};
180 @Files_to_tidy = (); # files we nuke in the case of abnormal termination
182 $Unlit = ( $INSTALLING ) ? "$InstLibExecDirGhc/unlit"
183 : "$TopPwd/${CURRENT_DIR}/${GHC_UNLIT}";
187 $Diff = $CONTEXT_DIFF;
192 $HsCpp = # but this is re-set to "cat" (after options) if -cpp not seen
193 ( $INSTALLING ) ? "$InstLibExecDirGhc/hscpp"
194 : "$TopPwd/${CURRENT_DIR}/${GHC_HSCPP}";
197 $HsC = ( $INSTALLING ) ? "$InstLibExecDirGhc/hsc"
198 : "$TopPwd/${CURRENT_DIR}/${GHC_HSC}";
200 # For PVM fiends only
201 $SysMan = ( $INSTALLING ) ? "$InstLibExecDirGhc/SysMan"
202 : "$TopPwd/${CURRENT_DIR}/${GHC_SYSMAN}";
207 # HsC_rts_flags: if we want to talk to the LML runtime system
208 # NB: we don't use powers-of-2 sizes, because this may do
209 # terrible things to cache behavior.
211 $Specific_heap_size = 6 * 1000 * 1000;
212 $Specific_stk_size = 1000 * 1000;
213 $Scale_sizes_by = 1.0;
217 The variables set by @setupOptFlags@ represent parts of the
218 -O/-O2/etc ``templates,'' which are filled in later, using these.
219 These are the default values, which may be changed by user flags.
223 $Oopt_MaxSimplifierIterations = '-fmax-simplifier-iterations4';
224 $Oopt_PedanticBottoms = '-fpedantic-bottoms'; # ON by default
225 $Oopt_MonadEtaExpansion = '';
226 $Oopt_FinalStgProfilingMassage = '';
228 $Oopt_SpecialiseUnboxed = '';
229 $Oopt_DoSpecialise = '-fspecialise';
230 $Oopt_FoldrBuild = 0; # *Off* by default!
231 $Oopt_FB_Support = ''; # was '-fdo-arity-expand';
232 # $Oopt_FoldrBuildWW = 0; # Off by default
233 $Oopt_FoldrBuildInline = ''; # was '-fdo-inline-foldr-build';
234 $Oopt_ShowSimplifierProgress = '';
235 } # end of setupOptFlags
237 # Assign defaults to these right away.
241 Things to do with C compilers/etc:
243 $CcRegd = $GHC_OPT_HILEV_ASM;
244 @CcBoth_flags = ('-S'); # flags for *any* C compilation
248 # those for all files,
249 # those only for .c files;
250 # those only for .hc files
252 @CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__');
253 @CcRegd_flags_c = ();
254 @CcRegd_flags_hc = ();
256 $As = ''; # "assembler" is normally GCC
259 $Lnkr = ''; # "linker" is normally GCC
262 # 'nm' is used for consistency checking (ToDo: mk-world-ify)
263 # ToDo: check the OS or something ("alpha" is surely not the crucial question)
264 $Nm = ($TargetPlatform =~ /^alpha-/) ? 'nm -B' : 'nm';
267 Warning packages that are controlled by -W and -Wall. The 'standard'
268 warnings that you get all the time are
270 -fwarn-overlapping-patterns
271 -fwarn-missing-methods
272 -fwarn-duplicate-exports
274 these are turned off by -Wnot.
277 @StandardWarnings = ('-fwarn-overlapping-patterns',
278 '-fwarn-missing-methods',
279 '-fwarn-duplicate-exports');
280 @MinusWOpts = (@StandardWarnings,
281 '-fwarn-incomplete-patterns',
282 '-fwarn-unused-binds',
283 '-fwarn-unused-imports');
284 @MinusWallOpts = (@MinusWOpts,
285 '-fwarn-unused-matches',
286 '-fwarn-name-shadowing');
289 What options \tr{-user-setup-a} turn into (user-defined ``packages''
291 of options). Note that a particular user-setup implies a particular
292 Prelude ({\em including} its interface file(s)).
294 $BuildTag = ''; # default is sequential build w/ Appel-style GC
296 %BuildDescr = (# system ways begin
297 '', 'normal sequential',
301 '_mc', "$WAY_mc_NAME",
302 '_mr', "$WAY_mr_NAME",
303 '_mt', "$WAY_mt_NAME",
304 '_mp', "$WAY_mp_NAME",
305 '_mg', "$WAY_mg_NAME",
306 '_2s', "$WAY_2s_NAME",
307 '_1s', "$WAY_1s_NAME",
308 '_du', "$WAY_du_NAME",
326 '_B', "$WAY_B_NAME" );
328 # these are options that are "fed back" through the option processing loop
332 '_a', "$WAY_a_HC_OPTS",
333 '_b', "$WAY_b_HC_OPTS",
334 '_c', "$WAY_c_HC_OPTS",
335 '_d', "$WAY_d_HC_OPTS",
336 '_e', "$WAY_e_HC_OPTS",
337 '_f', "$WAY_f_HC_OPTS",
338 '_g', "$WAY_g_HC_OPTS",
339 '_h', "$WAY_h_HC_OPTS",
340 '_i', "$WAY_i_HC_OPTS",
341 '_j', "$WAY_j_HC_OPTS",
342 '_k', "$WAY_k_HC_OPTS",
343 '_l', "$WAY_l_HC_OPTS",
344 '_m', "$WAY_m_HC_OPTS",
345 '_n', "$WAY_n_HC_OPTS",
346 '_o', "$WAY_o_HC_OPTS",
347 '_A', "$WAY_A_HC_OPTS",
348 '_B', "$WAY_B_HC_OPTS",
351 '_p', "$WAY_p_HC_OPTS",
352 '_t', "$WAY_t_HC_OPTS",
353 '_u', "$WAY_u_HC_OPTS",
354 '_mc', "$WAY_mc_HC_OPTS",
355 '_mr', "$WAY_mr_HC_OPTS",
356 '_mt', "$WAY_mt_HC_OPTS",
357 '_mp', "$WAY_mp_HC_OPTS",
358 '_mg', "$WAY_mg_HC_OPTS",
359 '_2s', "$WAY_2s_HC_OPTS",
360 '_1s', "$WAY_1s_HC_OPTS",
361 '_du', "$WAY_B_HC_OPTS" );
365 Import/include directories (\tr{-I} options) are sufficiently weird to
366 require special handling.
369 @Import_dir = ('.'); #-i things
370 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
372 # where to look for interface files (system hi's, i.e., prelude and syslibs)
373 @SysImport_dir = ( $INSTALLING )
374 ? ( "$InstLibDirGhc/imports/std" )
375 : ( "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std" );
377 # We need to look in ghc/ and glaExts/ when searching for implicitly needed .hi files, but
378 # we should really *not* look there for explicitly imported modules.
380 $GhcVersionInfo = $ProjectVersionInt;
381 $Haskell1Version = 4; # i.e., Haskell 1.4
384 @UserLibrary_dir= (); #-L things;...
385 @UserLibrary = (); #-l things asked for by the user
387 @SysLibrary_dir = ( ( $INSTALLING ) #-syslib things supplied by the system
389 : ( "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR"
390 , "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/gmp"
391 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std"
392 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std/cbits"
395 @SysLibrary = (); # will be built up as we go along
397 $TopClosureFile # defaults to 1.2 one; will be mangled later
398 = ( $INSTALLING) ? "$InstLibDirGhc/TopClosureXXXX.o"
399 : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/main/TopClosureXXXX.o";
401 # make depend for Haskell
403 = ( $INSTALLING ) ? "$InstBinDirGhc/mkdependHS"
404 : "$TopPwd/$CURRENT_DIR/$GHC_UTILS_DIR/mkdependHS/mkdependHS";
406 @MkDependHS_flags = ();
408 # do_link flag should not be reset while rescanning the cmd-line.
410 $Specific_output_dir = ''; # set by -odir <dir>
411 $Specific_output_file = ''; # set by -o <file>; "-" for stdout
414 Function to initialise the per-compilation-unit globals that
415 are used to guide and control the invocation of the different phases.
418 sub initDriverGlobals {
420 # reset the following options:
421 # RTS flags to use while compiling
423 @HsP_flags = (); # these are the flags destined solely for
424 # the flex/yacc parser
429 The optimisations/etc to be done by the compiler are {\em normally}
430 expressed with a \tr{-O} (or \tr{-O2}) flag, or by its absence.
433 $OptLevel = 0; # no -O == 0; -O == 1; -O2 == 2; -Ofile == 3
434 $MinusO2ForC = 0; # set to 1 if -O2 should be given to C compiler
435 $StolenX86Regs = 4; # **HACK*** of the very worst sort
439 @CcBoth_flags = ('-S'); # flags for *any* C compilation
442 # GCC flags: those for all files, those only for .c files; those only for .hc files
443 @CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__');
444 @CcRegd_flags_c = ();
445 @CcRegd_flags_hc = ();
447 @Import_dir = ('.'); #-i things
448 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
453 We are given a list of files with various presumably-known suffixes
454 (unknown-suffix files go straight to the linker). For each file, we
455 begin by assuming that we'll run every phase over it. However: (1)
456 global flags (\tr{-c}, \tr{-S}, etc.) tell us not to run any phase
457 past a certain point; and (2) the file's suffix tells us what phase to
458 start with. Linking is weird and kept track of separately.
460 Here are the initial defaults applied to all files:
462 $Cpp_flag_set = 0; # (hack)
463 $Only_preprocess_C = 0; # pretty hackish
464 $Only_preprocess_hc = 0; # ditto
465 $Only_generate_deps = 0; # "
466 $PostprocessCcOutput = 0;
468 # native code-gen or via C?
469 $HaveNativeCodeGen = $GhcWithNativeCodeGen;
470 $HscOut = '-C='; # '-C=' ==> .hc output; '-S=' ==> .s output; '-N=' ==> neither
472 if $HaveNativeCodeGen && $TargetPlatform =~ /^(alpha|sparc)-/;
473 # TEMP: disable x86 if $HaveNativeCodeGen && $TargetPlatform =~ /^(i386|alpha|sparc)-/;
474 $ProduceHi = '-hifile=';
480 $CollectingGCstats = 0;
481 $CollectGhcTimings = 0;
482 $DEBUGging = ''; # -DDEBUG and all that it entails (um... not really)
483 $PROFing = ''; # set to p or e if profiling
484 $PROFgroup = ''; # set to group if an explicit -Ggroup specified
485 $PROFauto = ''; # set to relevant hsc flag if -auto or -auto-all
486 $PROFcaf = ''; # set to relevant hsc flag if -caf-all
487 $PROFignore_scc = ''; # set to relevant parser flag if explicit sccs ignored
488 $UNPROFscc_auto = ''; # set to relevant hsc flag if forcing auto sccs without profiling
489 $TICKYing = ''; # set to t if compiling for ticky-ticky profiling
490 $PARing = ''; # set to p if compiling for PAR
491 $CONCURing = ''; # set to c if compiling for CONCURRENT
492 $GRANing = ''; # set to g if compiling for GRAN
493 $StkChkByPageFaultOK = 1; # may be set to 0 (false) for some builds
494 $Specific_hi_file = ''; # set by -ohi <file>; "-" for stdout
495 $Specific_dump_file = ''; # set by -odump <file>; "-" for stdout
496 $Using_dump_file = 0;
498 $Osuffix = ''; # default: use the normal suffix for that kind of output
500 $HiSuffix_prelude = '';
501 $Do_recomp_chkr = 0; # don't use the recompilatio checker unless asked
502 $Do_cc = -1; # a MAGIC indeterminate value; will be set to 1 or 0.
505 $Keep_hc_file_too = 0;
506 $Keep_s_file_too = 0;
507 $UseGhcInternals = 0; # if 1, may use GHC* modules
510 $Dump_parser_output = 0;
512 $Dump_asm_splitting_info = 0;
513 $NoImplicitPrelude = 0;
516 } # end of initDriverGlobals (Sigh)
518 # we split the argv passed to the driver into three:
523 # and files to be linked...
529 # cmd line options prefixing the unit we're compiling
534 We inject consistency-checking information into \tr{.hc} files (both
535 when created by the Haskell compiler and when compiled by the C
536 compiler), so that we can check that an executable is made from
537 consistently-built pieces. (The check is normally done just after
538 linking.) The checking is done by introducing/munging
539 \tr{what(1)}-style strings. Anyway, here are the relevant global
540 variables and their defaults:
542 $LinkChk = 1; # set to 0 if the link check should *not* be done
544 # major & minor version numbers; major numbers must always agree;
545 # minor disagreements yield a warning.
546 $HsC_major_version = 33;
547 $HsC_minor_version = 0;
548 $Cc_major_version = 36;
549 $Cc_minor_version = 1;
551 # options: these must always agree
552 $HsC_consist_options = ''; # we record, in this order:
553 # Build tag; debugging?
554 $Cc_consist_options = ''; # we record, in this order:
555 # Build tag; debugging?
558 %************************************************************************
560 \section[Driver-parse-argv]{Munge the command-line options}
562 %************************************************************************
564 Now slurp through the arguments.
567 &initDriverGlobals();
568 &splitCmdLine(@ARGV);
569 # Run through the cmd-line first time.
570 &processArgs(@Cmd_opts);
572 # Check to see if driver is only in the business
573 # to generate dependencies
574 if ( $Status == 0 && $Only_generate_deps ) {
576 push (@MkDependHS_flags, "-o$Osuffix") if $Osuffix;
577 push (@MkDependHS_flags, "-s$BuildTag") if $BuildTag;
578 push (@MkDependHS_flags, "-D__HASKELL1__=$Haskell1Version");
579 # They're not (currently) needed, but we need to quote any -#include options
580 foreach (@Cmd_opts) {
581 s/-#include.*$/'$&'/g;
583 local($to_do) = "$MkDependHS @MkDependHS_flags -- @Cmd_opts -- @Input_file" ;
584 &run_something($to_do, 'Haskell dependencies');
588 # if there are several input files,
589 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
590 # (except if linking, of course)
592 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
593 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
594 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
595 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
596 print STDERR "\tPerhaps the -odir option will do what you want.\n";
601 # check for various pathological -o and -odir combinations...
602 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
603 if ($Specific_output_file eq '-') {
604 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
606 } else { # amalgamate...
607 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
608 # ToDo: check we haven't got a junk name now...
609 $Specific_output_dir = ''; # reset
613 # crash and burn if there were errors
615 print STDERR $ShortUsage;
620 %************************************************************************
622 \section[Driver-post-argv-mangling]{Setup after reading options}
624 %************************************************************************
626 %************************************************************************
628 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
630 %************************************************************************
632 We come now to the default ``wads of options'' that are turned on by
633 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
634 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
637 The user can also specify his/her own list of options in a file; in
638 that case, the work is already done (see stuff about @minusO3@,
641 GHC allows very precise control of what happens during a compilation.
642 Core-to-Core and STG-to-STG passes can be run in any order, as many
643 times as you like. Individual transformations can be turned on or
646 Sadly, however, there are some interdependencies \& Things You Must
647 Not Do. Here is the list.
651 \item[\tr{-fspecialise}:]
652 The specialiser must have dependency-analysed input; but if you run
653 the simplifier to do this, you must not let it toss away unused
654 bindings! (The typechecker conveys some specialisation info via
655 ``unused'' bindings...)
657 \item[\tr{-ffloat-inwards}:]
658 Floating inwards should be done before strictness analysis, because
659 the latter will give better results.
661 \item[\tr{-fstatic-args}:]
662 The static-arguments-transformation pass {\em must} have the
663 simplifier run right after it.
665 \item[\tr{-fcalc-inlinings[12]}:]
666 Not required, but there may be slight gains by re-simplifying after
667 this is done. (You could then \tr{-fcalc-inlinings} again, just for
670 \item[\tr{-ffull-laziness}:]
671 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
672 that's run. (Um, well, howzabout the simplifier just once more...)
677 \item[\tr{-fupdate-analysis}:]
678 It really really wants to be the last STG-to-STG pass that is run.
683 sub setupOptimiseFlags {
689 '-ffloat-lets-exposing-whnf',
690 '-ffloat-primops-ok',
693 # '-fdo-lambda-eta-expansion', # too complicated
695 # '-flet-to-case', # no strictness analysis, so...
696 $Oopt_PedanticBottoms,
697 # $Oopt_MonadEtaExpansion, # no thanks
699 # These two work fine, if you really want no simplification at all,
700 # for bizarre test reasons. But you get really terrible code if you use them,
701 # for example: let x = e in x
702 # with dozens of redundant thunks etc. So I'm leaving them out.
704 # '-fsimpl-uf-use-threshold0',
705 # '-fessential-unfoldings-only',
707 $Oopt_MaxSimplifierIterations,
708 $Oopt_ShowSimplifierProgress,
711 # '-ffull-laziness', # removed 95/04 WDP following Andr\'e's lead
713 $Oopt_FinalStgProfilingMassage
716 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
718 '-fdo-eta-reduction',
720 # initial simplify: mk specialiser happy: minimum effort please
724 '-fkeep-spec-pragma-ids', # required before specialisation
726 # I don't understand why we want -fessential-unfoldings-only here
727 # If we have it, the following nasty thing happens:
731 # where "*" means exported.
732 # In the essential-unfoldings pass we still substitute f for g
733 # but we don't substitute E for f first. So we get
737 # The g=f will get reverse-substituted later, but it's untidy.
739 # '-fessential-unfoldings-only',
740 # '-fsimpl-uf-use-threshold0',
742 '-fmax-simplifier-iterations1',
743 $Oopt_PedanticBottoms,
746 ($Oopt_DoSpecialise) ? (
747 '-fspecialise-overloaded',
748 $Oopt_SpecialiseUnboxed,
752 '-fsimplify', # need dependency anal after specialiser ...
753 '[', # need tossing before calc-inlinings ...
755 '-ffloat-lets-exposing-whnf',
756 '-ffloat-primops-ok',
760 # '-fdo-eta-reduction',
761 '-fdo-lambda-eta-expansion',
763 $Oopt_PedanticBottoms,
764 $Oopt_MonadEtaExpansion,
765 $Oopt_MaxSimplifierIterations,
766 $Oopt_ShowSimplifierProgress,
768 # The presence of -fclone-binds is *crucial* here as
769 # -ffull-laziness (which we're about to do next) floats
770 # bindings outwards, so we better make sure that this
771 # doesn't result in the floating out of bindings
772 # with identical uniques, i.e., -ffull-laziness needs
773 # to be preceeded by a simplifier pass with -fclone-binds
778 #LATER: '-fcalc-inlinings1', -- pointless for 2.01
780 # ($Oopt_FoldrBuildWW) ? (
781 # '-ffoldr-build-ww-anal',
782 # '-ffoldr-build-worker-wrapper',
786 # '-ffloat-lets-exposing-whnf',
787 # '-ffloat-primops-ok',
791 # '-fdo-eta-reduction',
792 # '-fdo-lambda-eta-expansion',
794 # $Oopt_PedanticBottoms,
795 # $Oopt_MonadEtaExpansion,
796 # $Oopt_MaxSimplifierIterations,
797 # $Oopt_ShowSimplifierProgress,
801 # this pass-ordering sequence was agreed by Simon and Andr\'e
802 # (WDP 94/07, 94/11).
805 ($Oopt_FoldrBuild) ? (
806 '-ffoldr-build-on', # desugar list comprehensions for foldr/build
810 '-fignore-inline-pragma', # **** NB!
811 '-fdo-foldr-build', # NB
813 '-ffloat-lets-exposing-whnf',
814 '-ffloat-primops-ok',
818 # '-fdo-eta-reduction',
819 '-fdo-lambda-eta-expansion', # After full laziness
821 $Oopt_PedanticBottoms,
822 $Oopt_MonadEtaExpansion,
823 $Oopt_MaxSimplifierIterations,
824 $Oopt_ShowSimplifierProgress,
833 '-ffloat-lets-exposing-whnf',
834 '-ffloat-primops-ok',
838 '-fdo-eta-reduction',
839 '-fdo-lambda-eta-expansion',
841 ($Oopt_FoldrBuildInline),
842 # you need to inline foldr and build
843 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
844 # but do reductions if you see them!
845 $Oopt_PedanticBottoms,
846 $Oopt_MonadEtaExpansion,
847 $Oopt_MaxSimplifierIterations,
848 $Oopt_ShowSimplifierProgress,
856 '-ffloat-lets-exposing-whnf',
857 '-ffloat-primops-ok',
861 # '-fdo-eta-reduction',
862 '-fdo-lambda-eta-expansion',
864 '-flet-to-case', # Aha! Only done after strictness analysis
865 $Oopt_PedanticBottoms,
866 $Oopt_MonadEtaExpansion,
867 $Oopt_MaxSimplifierIterations,
868 $Oopt_ShowSimplifierProgress,
873 # Case-liberation for -O2. This should be after
874 # strictness analysis and the simplification which follows it.
878 # : "-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_MaxSimplifierIterations $Oopt_ShowSimplifierProgress ]" ),
880 # Final clean-up simplification:
885 '-ffloat-lets-exposing-whnf',
886 '-ffloat-primops-ok',
890 # '-fdo-eta-reduction',
891 '-fdo-lambda-eta-expansion',
894 '-fignore-inline-pragma', # **** NB!
895 $Oopt_FoldrBuildInline,
896 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
897 # but still do reductions if you see them!
898 $Oopt_PedanticBottoms,
899 $Oopt_MonadEtaExpansion,
900 $Oopt_MaxSimplifierIterations,
901 $Oopt_ShowSimplifierProgress,
906 #LATER: '-fcalc-inlinings2', -- pointless for 2.01
910 $Oopt_FinalStgProfilingMassage,
916 # SPECIAL FLAGS for -O2
918 '-fupdate-analysis', # virtually useless; relegated to -O2
925 Sort out what we're going to do about optimising. First, the @hsc@
926 flags and regular @cc@ flags to worry about:
928 if ( $OptLevel <= 0 ) {
930 # for this level, we tell the parser -fignore-interface-pragmas
931 push(@HsC_flags, '-fignore-interface-pragmas');
932 # and tell the compiler not to produce them
933 push(@HsC_flags, '-fomit-interface-pragmas');
935 &add_Hsc_flags( @HsC_minusNoO_flags );
936 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
938 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
940 &add_Hsc_flags( @HsC_minusO_flags );
941 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
942 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
943 # but it *is* useful in compiling the garbage collectors (so said
944 # Patrick many moons ago...).
946 } else { # -Ofile, then...
948 &add_Hsc_flags( @HsC_minusO3_flags );
949 push(@HsC_flags, $Oopt_FinalStgProfilingMassage) if $Oopt_FinalStgProfilingMassage;
951 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
954 } # setupOptimiseFlags
958 %************************************************************************
960 \subsection{Check for consistency, etc.}
962 %************************************************************************
964 Sort out @$BuildTag@, @$PROFing@, @$CONCURing@, @$PARing@,
965 @$GRANing@, @$TICKYing@:
967 sub setupBuildFlags {
970 # PROFILING stuff after argv mangling:
972 # warn about any scc exprs found (in case scc used as identifier)
973 push(@HsP_flags, '-W');
975 # add -auto sccs even if not profiling !
976 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
979 push(@HsC_flags, $PROFauto) if $PROFauto;
980 push(@HsC_flags, $PROFcaf) if $PROFcaf;
981 #push(@HsC_flags, $PROFdict) if $PROFdict;
983 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
985 # Ignore user sccs when auto annotating, but warn when doing so.
986 $PROFignore_scc = '-W' if $PROFauto;
988 push(@HsP_flags, (($PROFignore_scc) ? $PROFignore_scc : '-S'));
990 if ( $SplitObjFiles ) {
991 # can't split with cost centres -- would need global and externs
992 print STDERR "$Pgm: WARNING: splitting objects when profiling will *BREAK* if any _scc_s are present!\n";
993 # (but it's fine if there aren't any _scc_s around...)
994 # $SplitObjFiles = 0; # unset
995 #not an error: for now: $Status++;
998 #if ( $BuildTag ne '' ) {
999 # local($b) = $BuildDescr{$BuildTag};
1000 # if ($CONCURing eq 'c') { print STDERR "$Pgm: Can't mix $b with -concurrent.\n"; exit 1; }
1001 # if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
1002 # if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
1003 # if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
1005 # # ok to have a user-way profiling build
1006 # # eval the profiling opts ... but leave user-way BuildTag
1007 # if ($PROFing eq 'p') { &processArgs(split(' ', $SetupOpts{'_p'})); } # eval($EvaldSetupOpts{'_p'}); }
1009 if ( $PROFing eq 'p' ) {
1010 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
1011 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
1012 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
1013 $BuildTag = ($CONCURing eq 'c') ? '_mr' : '_p' ; # possibly "profiled concurrent"...
1015 } elsif ( $CONCURing eq 'c' ) {
1016 if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix -concurrent with -parallel.\n"; exit 1; }
1017 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -concurrent with -gransim.\n"; exit 1; }
1018 $BuildTag = ($TICKYing eq 't') ? '_mt' : '_mc' ; # possibly "ticky concurrent"...
1019 # "profiled concurrent" already acct'd for...
1021 } elsif ( $PARing eq 'p' ) {
1022 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
1023 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
1026 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
1027 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
1031 } elsif ( $GRANing eq 'g' ) {
1032 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
1035 } elsif ( $TICKYing eq 't' ) {
1041 After the sanity checks, add flags to the necessary parts of the driver pipeline:
1044 if ( $BuildTag ne '' ) { # something other than normal sequential...
1046 local($Tag) = "${BuildTag}";
1047 $Tag =~ s/_//; # move the underscore to the back
1049 $HscOut = '-C='; # must go via C
1050 &processArgs(split(' ', $SetupOpts{$BuildTag}));
1051 # eval($EvaldSetupOpts{$BuildTag});
1055 Decide what the consistency-checking options are in force for this run:
1058 $HsC_consist_options = "${BuildTag},${DEBUGging}";
1059 $Cc_consist_options = "${BuildTag},${DEBUGging}";
1062 # Funny place to put it, but why not.
1064 if ( $HiSuffix_prelude eq '' ) {
1065 local($Tag) = "${BuildTag}";
1067 $Tag = "${Tag}_" if $Tag ne '';
1068 $HiSuffix_prelude="${Tag}hi";
1070 #push(@HsC_flags, "-hisuf-prelude=.${HiSuffix_prelude}"); # use appropriate Prelude .hi files
1071 #push(@HsC_flags, "-hisuf=.${HiSuffix}");
1076 %************************************************************************
1078 \subsection{Add on machine-specific C-compiler flags}
1080 %************************************************************************
1082 Shove on magical machine-specific options. We use \tr{unshift} to
1083 stick them on the {\em front} of the arrays, so that ``later''
1084 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
1086 Note: a few ``always apply'' flags were set at the very beginning.
1091 if ($TargetPlatform =~ /^alpha-/) {
1092 # we know how to *mangle* asm for alpha
1093 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1094 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1095 unshift(@CcBoth_flags, ('-static'));
1097 } elsif ($TargetPlatform =~ /^hppa/) {
1098 # we know how to *mangle* asm for hppa
1099 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1100 unshift(@CcBoth_flags, ('-static'));
1102 # We don't put in '-mlong-calls', because it's only
1103 # needed for very big modules (sigh), and we don't want
1104 # to hobble ourselves further on all the other modules
1107 # [Dated comment (gcc-2.6.x?), -mlong-calls is no longer
1108 # a supported gcc HPPA flag]
1109 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
1110 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
1111 # (very nice, but too bad the HP /usr/include files don't agree.)
1113 } elsif ($TargetPlatform =~ /^i386-/) {
1114 # we know how to *mangle* asm for X86
1115 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1116 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK && $TargetPlatform !~ /nextstep/;
1117 # I do not know how to do STACK_CHECK_BY_PAGE_FAULT
1118 # on NeXTs (my fault, not theirs), so I don't.
1121 # -fno-defer-pop : basically the same game as for m68k
1123 # -fomit-frame-pointer : *must* ; because we're stealing
1124 # the fp (%ebp) for our register maps. *All* register
1125 # maps (in MachRegs.lh) must steal it.
1127 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1128 unshift(@CcRegd_flags, '-fomit-frame-pointer');
1129 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1131 } elsif ($TargetPlatform =~ /^m68k-/) {
1132 # we know how to *mangle* asm for m68k
1133 unshift (@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1134 unshift (@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK && $TargetPlatform !~ /nextstep/;
1135 # I do not know how to do STACK_CHECK_BY_PAGE_FAULT
1136 # on NeXTs (my fault, not theirs), so I don't.
1139 # -fno-defer-pop : for the .hc files, we want all the pushing/
1140 # popping of args to routines to be explicit; if we let things
1141 # be deferred 'til after an STGJUMP, imminent death is certain!
1143 # -fomit-frame-pointer : *don't*
1144 # It's better to have a6 completely tied up being a frame pointer
1145 # rather than let GCC pick random things to do with it.
1146 # (If we want to steal a6, then we would try to do things
1147 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1149 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1150 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1151 # maybe gives reg alloc a better time
1152 # also: -fno-defer-pop is not sufficiently well-behaved without it
1154 } elsif ($TargetPlatform =~ /^mips-/) {
1155 # we (hope to) know how to *mangle* asm for MIPSen
1156 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1157 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1158 unshift(@CcBoth_flags, ('-static'));
1160 } elsif ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1161 # we know how to *mangle* asm for PowerPC
1162 # :-( unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1163 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1164 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1165 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1166 } elsif ($TargetPlatform =~ /^sparc-/) {
1167 # we know how to *mangle* asm for SPARC
1168 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1169 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1172 } # end of setupMachOpts
1175 %************************************************************************
1177 \subsection{Set up for warnings}
1179 %************************************************************************
1181 Several warnings are turned on by default. These are supposed to be
1182 the 'I'm pretty sure you've made a mistake here' kind of warnings.
1183 The rest are turned on by the -W and -Wall options, or individually
1184 via their -fwarn and -fno-warn flags.
1187 sub setupWarningFlags {
1188 &add_Hsc_flags( @StandardWarnings );
1192 Same unshifting magic, but for special linker flags.
1194 The configure script determines whether the object file symbol tables
1195 have a leading underscore, and sets @LeadingUnderscore@ accordingly.
1196 (The driver script `sees' the setting of the @LeadingUnderscore@
1197 by having the Makefile prepend it).
1201 local($uscore) = ( ${LeadingUnderscore} eq 'YES' ) ? '_' : '';
1204 (($Ld_main) ? ( '-u', "${uscore}Main_" . $Ld_main . '_closure' ) : ()));
1206 ( '-u', "${uscore}PrelBase_Z91Z93_closure" # i.e., []
1207 ,'-u', "${uscore}PrelBase_IZh_static_info"
1208 ,'-u', "${uscore}PrelBase_CZh_static_info"
1209 ,'-u', "${uscore}PrelBase_False_inregs_info"
1210 ,'-u', "${uscore}PrelBase_True_inregs_info"
1211 ,'-u', "${uscore}DEBUG_REGS"
1213 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1214 # sometimes we have lots of toc entries...
1215 # unshift(@Ld_flags, ('-Xlinker -bbigtoc -Xlinker -bnoquiet'));
1216 unshift(@Ld_flags, ('-Xlinker -bbigtoc'));
1219 } # end of setupLinkOpts
1223 %************************************************************************
1225 \subsection{Set up include paths and system-library enslurpment}
1227 %************************************************************************
1229 Now that we know what garbage-collector, etc., are required, we can
1230 finalise our list of libraries to slurp through, and generally Get
1235 # default includes must be added AFTER option processing
1236 if ( ! $INSTALLING ) {
1237 push (@Include_dir, "$TopPwd/${CURRENT_DIR}/${GHC_INCLUDE_DIR}");
1239 push (@Include_dir, "$InstLibDirGhc/includes");
1240 push (@Include_dir, "$InstLibDirGhc/includes");
1242 } # end of setupIncPaths
1247 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1250 foreach $f (@SysLibrary) {
1251 next if $f =~ /_cbits/;
1252 $f .= $BuildTag if $f =~ /^-lHS/;
1255 # fiddle the TopClosure file name...
1256 $TopClosureFile =~ s/XXXX//;
1258 # Push library HSrts, plus boring clib bit
1259 push(@SysLibrary, "-lHSrts${BuildTag}");
1260 push(@SysLibrary, '-lHSclib');
1262 # RTS compiled with cygwin32, uses the WinMM API
1263 # to implement the itimers, since cygwin.dll does not
1264 # support it. Only reqd. for `ways' that use itimers.
1266 push(@SysLibrary, '-lwinmm') if $BuildTag ne '' && $TargetPlatform eq 'i386-unknown-cygwin32';
1268 # Push the pvm libraries
1269 if ($BuildTag eq '_mp') {
1270 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1271 push(@SysLibrary, "-L$pvmlib", '-lpvm3', '-lgpvm3');
1272 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1273 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1274 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1275 push(@SysLibrary, '-lsocket', '-lnsl');
1279 # Push the GNU multi-precision arith lib; and the math library
1280 push(@SysLibrary, '-lgmp');
1281 push(@SysLibrary, '-lm');
1284 %************************************************************************
1286 \subsection{Check that this system was built to do what we are asking}
1288 %************************************************************************
1290 Before continuing we check that the appropriate build is available.
1293 #die "$Pgm: no BuildAvail?? $BuildTag\n" if $BuildDescr{$BuildTag} eq '' ; # sanity
1295 if ( $BuildDescr{$BuildTag} eq '' ) {
1296 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1297 "' \"build\" is not available with your GHC setup.\n";
1298 print STDERR "(It was not configured for it at your site.)\n";
1299 print STDERR $ShortUsage;
1303 } # end of setupSyslibs
1307 %************************************************************************
1309 \subsection{Final miscellaneous setup bits before we start going}
1311 %************************************************************************
1313 Record largest specific heapsize, if any.
1315 sub setupHeapStackSize {
1316 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1317 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1318 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1319 push(@HsC_rts_flags, "-K$Specific_stk_size");
1323 If no input or link files seen, then we let 'em feed in stdin; this is
1324 mainly for debugging.
1328 if ($#Input_file < 0 && $#Link_file < 0) {
1329 @Input_file = ( '-' );
1331 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1332 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n" if -t;
1333 while (<STDIN>) { print INF $_; }
1334 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1339 Tell the world who we are, if they asked.
1341 print STDERR "${ProjectName}, version ${ProjectVersion}, patchlevel ${ProjectPatchLevel}\n"
1345 %************************************************************************
1347 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1349 %************************************************************************
1351 Process the input files; don't continue with linking if there are
1352 problems (global variable @$Status@ non-zero).
1354 foreach $ifile (@Input_file) {
1355 &ProcessInputFile($ifile);
1358 if ( $Status > 0 ) { # don't link if there were errors...
1359 print STDERR $ShortUsage;
1364 # append last minute flags linker and consistency flags
1371 Link if appropriate.
1374 local($libdirs) = '';
1376 # glue them together:
1377 push(@UserLibrary_dir, @SysLibrary_dir);
1379 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1381 # for a linker, use an explicitly given one, or the going C compiler ...
1382 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1384 if ( ($Specific_output_file eq '') &&
1385 ($TargetPlatform eq 'i386-unknown-cygwin32') ) {
1386 $Specific_output_file = 'main.exe';
1387 print STDERR "Output file not specified, defaulting to \"main.exe\"\n";
1390 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1391 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1393 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $TopClosureFile $libdirs @UserLibrary @SysLibrary";
1394 &run_something($to_do, 'Linker');
1396 # finally, check the consistency info in the binary
1397 local($executable) = $Files_to_tidy[0];
1398 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1401 # dynamically load consistency-chking code; then do it.
1402 require('ghc-consist.prl')
1403 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1405 &chk_consistency_info ( $executable );
1408 # if PVM parallel stuff, we do truly weird things.
1409 # Essentially: (1) move the executable over to where PVM expects
1410 # to find it. (2) create a script in place of the executable
1411 # which will cause the program to be run, via SysMan.
1412 if ( $PARing eq 'p' ) {
1413 local($pvm_executable) = $executable;
1414 local($pvm_executable_base);
1416 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1417 local($pwd) = `pwd`;
1419 $pwd =~ s/^\/tmp_mnt//;
1420 $pvm_executable = "$pwd/$pvm_executable";
1423 $pvm_executable =~ s|/|=|g; # make /s into =s
1424 $pvm_executable_base = $pvm_executable;
1426 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1427 . "/$pvm_executable";
1429 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1431 # OK, now create the magic script for "$executable"
1432 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1433 print EXEC <<EOSCRIPT1;
1434 eval 'exec perl -S \$0 \${1+"\$@"}'
1435 if \$running_under_some_shell;
1436 # =!=!=!=!=!=!=!=!=!=!=!
1437 # This script is automatically generated: DO NOT EDIT!!!
1438 # Generated by Glasgow Haskell, version ${ProjectVersion} ${ProjectPatchLevel}
1440 \$pvm_executable = '$pvm_executable';
1441 \$pvm_executable_base = '$pvm_executable_base';
1442 \$SysMan = '$SysMan';
1445 print EXEC <<\EOSCRIPT2;
1446 # first, some magical shortcuts to run "commands" on the binary
1448 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1450 system("$cmd $pvm_executable");
1454 # OK, really run it; process the args first
1455 $ENV{'PE'} = $pvm_executable_base;
1457 $nprocessors = 2; # the default
1461 # ToDo: handle --RTS
1462 args: while ($a = shift(@ARGV)) {
1463 if ( $a eq '+RTS' ) {
1465 } elsif ( $a eq '-RTS' ) {
1468 if ( $a eq '-d' && $in_RTS_args ) {
1470 } elsif ( $a =~ /^-N(\d+)/ && $in_RTS_args ) {
1473 push(@nonPVM_args, $a);
1477 local($return_val) = 0;
1478 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
1480 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
1483 close(EXEC) || die "Failed closing $executable\n";
1484 chmod 0755, $executable;
1488 # that... that's all, folks!
1490 exit $Status; # will still be 0 if all went well
1493 %************************************************************************
1495 \section[Driver-do-one-file]{How to process a single input file}
1497 %************************************************************************
1500 sub ProcessInputFile {
1501 local($ifile) = @_; # input file name
1502 local($ifile_root); # root of or basename of input file
1503 local($ofile_target); # ultimate output file we hope to produce
1504 # from input file (need to know for recomp
1505 # checking purposes)
1506 local($hifile_target);# ditto (but .hi file)
1509 Handle the weirdity of input from stdin.
1511 if ($ifile ne '-') {
1512 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1513 $ofile_target = # may be reset later...
1514 ($Specific_output_file ne '' && ! $Do_lnkr)
1515 ? $Specific_output_file
1516 : &odir_ify($ifile_root, 'o');
1517 $hifile_target= ($Specific_hi_file ne '')
1519 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1520 # NB: may change if $ifile_root isn't module name (??)
1522 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1523 $ifile_root = '_stdin';
1524 $ofile_target = '_stdout'; # gratuitous?
1525 $hifile_target= '_stdout'; # ditto?
1529 We need to decide what phases of the compilation system we will run
1530 over this file. The defaults are the ones established when processing
1531 flags. (That established what the last phase run for all files is.)
1533 We do the pre-recompilation-checker phases here; the rest later.
1537 Look at the suffix and decide what initial phases of compilation may
1538 be dropped off for this file. Also the rather boring business of
1539 which files are coming-in/going-out.
1541 Again, we'll do the post-recompilation-checker parts of this later.
1543 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1544 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1547 # names of the files to stuff between phases
1548 # defaults are temporaries
1549 local($in_lit2pgm) = $ifile;
1550 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1551 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1552 local($hsc_hi) = "$Tmp_prefix.hi";
1553 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1554 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1555 local($as_out) = $ofile_target;
1557 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
1559 # OK, let's strip off some literate junk..
1561 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
1563 $lit2pgm_hscpp = $ifile;
1569 # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas
1570 &check_for_source_options($lit2pgm_hscpp,$ifile);
1572 # Options found in the source file take a back seat, i.e., we scan
1573 # them first. Only process the command line again if source file
1574 # contained anything of interest *or* there's more than one
1575 # input file (we have to reset the options).
1577 if ( $#Input_file >= 0 || $#File_options >= 0) {
1578 #@File_options = (@File_options, @Cmd_opts);
1580 # Now process the command line
1581 &initDriverGlobals();
1582 &processArgs((@File_options,@Cmd_opts));
1583 print STDERR "\nEffective command line: " .
1584 join(' ',(@File_options,@Cmd_opts)) . "\n" if $Verbose;
1587 # Having got the effective command line scanned, set up
1588 # the various options in prep for some real work.
1590 # check the sanity of the BuildTag we're about to use,
1591 # and if needs be, add some more flags and setup to
1592 # the different phases.
1595 &setupOptimiseFlags();
1598 &setupWarningFlags();
1599 &setupHeapStackSize();
1602 # These two variables need to be set after the
1603 # command-line has been processed and the build options
1604 # have be seen set up. This is because command-line options
1605 # can control whether to compile vias C or not.
1607 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1609 : ( ($HscOut eq '-C=') ? 1 : 0 );
1610 local($do_as) = $Do_as;
1611 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1613 if ($Only_preprocess_hc) { # stop after having run $Cc -E
1616 if ($Only_preprocess_C) { # stop after having run $hscpp
1617 $do_hsc=0; $do_cc = 0; $do_as=0;
1618 } elsif ($ifile =~ /.lhs$/ || $ifile =~ /.hs$/ ) {
1620 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
1621 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1623 } elsif ($ifile =~ /\.c$/) {
1624 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1625 $hsc_out = $ifile; $is_hc_file = 0;
1626 } elsif ($ifile =~ /\.s$/) {
1627 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
1629 } else { # don't know what it is, but nothing to do herein...
1630 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
1633 # hack to avoid running hscpp
1634 $HsCpp = $Cat if ! $Cpp_flag_set;
1636 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) if $do_hscpp;
1640 We now think about whether to run hsc/cc or not (when hsc produces .s
1641 stuff, it effectively takes the place of both phases).
1643 To get the output file name right: for each phase that we are {\em
1644 not} going to run, set its input (i.e., the output of its preceding
1645 phase) to @"$ifile_root.<suffix>"@.
1648 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
1651 # Warning issued if -keep-hc-file-too is used without
1652 # -fvia-C (or the equivalent)
1654 if ( $HscOut ne '-C=' && $Keep_hc_file_too ) {
1655 print STDERR "$Pgm: warning: Native code generator to be used, -keep-hc-file-too will be ignored\n";
1658 if (! $do_cc && ! $do_as) { # stopping after hsc
1659 $hsc_out = ($Specific_output_file ne '')
1660 ? $Specific_output_file
1661 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
1663 $ofile_target = $hsc_out; # reset
1666 if (! $do_as) { # stopping after gcc (or hsc)
1667 $cc_as = ($Specific_output_file ne '')
1668 ? $Specific_output_file
1669 : &odir_ify($ifile_root, ( $Only_preprocess_hc ) ? 'i' : 's');
1671 $ofile_target = $cc_as; # reset
1677 Now the Haskell compiler, C compiler, and assembler
1681 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
1682 $ofile_target, $hifile_target);
1686 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
1687 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root) if ! $Only_preprocess_hc;
1690 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
1692 # save a copy of the .s file..
1693 &saveIntermediate($ifile_root , "s" , $cc_as) if ($do_as && $Keep_s_file_too);
1694 &runAs($as_out, $ifile_root) if $do_as;
1697 Finally, decide what to queue up for linker input.
1699 # tentatively assume we will eventually produce linker input:
1700 push(@Link_file, &odir_ify($ifile_root, 'o'));
1702 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
1705 if ( $ifile !~ /\.(lhs|hs|hc|c|s|a)$/ && $ifile !~ /_hc$/ ) {
1706 # There's sometimes confusion regarding .hi files; users
1707 # supplying them on the command line.
1708 if ( $ifile =~ /\.hi$/ ) {
1709 print STDERR "$Pgm: warning: found `$ifile' on command line; interface files should not be supplied here - ignoring it.\n";
1711 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n";
1713 # oops; we tentatively pushed the wrong thing; fix & do the right thing
1714 pop(@Link_file); push(@Link_file, $ifile);
1718 } # end of ProcessInputFile
1721 %************************************************************************
1723 \section[Driver-run-phases]{Routines to run the various phases}
1725 %************************************************************************
1729 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
1733 # Only add #line pragma if we're going to need it.
1734 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && " if ($Cpp_flag_set);
1735 $to_do .= "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
1737 push(@Files_to_tidy, $lit2pgm_hscpp );
1739 &run_something($to_do, 'literate pre-processor');
1745 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
1749 # Strictly speaking, echoing of the following line pragma is only required
1750 # on non-delit'ed input, as we've already added it during de-lit. However,
1751 # hscpp will then add a {-# LINE 1 "$lit2pgm_hsc" -} to the top of the file,
1752 # which is not very informative (but harmless). Hence, we uniformly have
1753 # {-# LINE 1 "$in_lit2pgm" #-} as the first line to all cpp'ed hsc input.
1755 $to_do = "echo '{-# LINE 1 \"$in_lit2pgm\" -}' > $hscpp_hsc && ";
1757 if ($HsCpp eq $Cat) {
1758 $to_do .= "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
1759 push(@Files_to_tidy, $hscpp_hsc );
1760 &run_something($to_do, 'Ineffective C pre-processor');
1762 local($includes) = '-I' . join(' -I',@Include_dir);
1763 $to_do .= "$HsCpp $Verbose @HsCpp_flags -D__HASKELL1__=$Haskell1Version -D__GLASGOW_HASKELL__=$GhcVersionInfo $includes $lit2pgm_hscpp >> $hscpp_hsc";
1764 push(@Files_to_tidy, $hscpp_hsc );
1765 &run_something($to_do, 'Haskellised C pre-processor');
1768 if ( $Only_preprocess_C ) {
1769 $to_do = "$Cat $hscpp_hsc";
1770 &run_something($to_do, '');
1778 sub runHscAndProcessInterfaces {
1779 local($ifile, $hscpp_hsc, $ifile_root, $ofile_target, $hifile_target) = @_;
1781 # $ifile is the original input file
1782 # $hscpp_hsc post-unlit, post-cpp, etc., input file
1783 # $ifile_root input filename minus suffix
1784 # $ofile_target the output file that we ultimately hope to produce
1785 # $hifile_target the .hi file ... (ditto)
1787 local($source_unchanged) = 1;
1789 # Check if the source file is up to date relative to the target; in
1790 # that case we say "source is unchanged" and let the compiler bail out
1791 # early if the import usage information allows it.
1793 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
1794 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
1796 # The informational messages below are now conditional on -v being set -- SOF
1797 if ( $ofile_target ne "_stdin.s" && ! -f $ofile_target ) {
1798 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n" if $Verbose;
1799 $source_unchanged = 0;
1802 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
1803 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
1805 if ( $hifile_target ne "_stdout" && ! -f $hifile_target ) {
1806 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n" if $Verbose;
1807 $source_unchanged = 0;
1810 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
1811 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
1813 if ( $ofile_target ne "_stdin.s" && $i_mtime > $o_mtime) {
1814 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n" if $Verbose;
1815 $source_unchanged = 0;
1818 # So if source_unchanged is still "1", we pass on the good news to the compiler
1819 # The -recomp flag can disable this, forcing recompilation
1820 if ($Do_recomp_chkr && $source_unchanged) {
1821 push(@HsC_flags, '-fsource-unchanged');
1826 &runHsc($ifile_root, $hsc_out, $hsc_hi, $going_interactive);
1828 # See if it bailed out early, saying nothing needed doing.
1829 # We work this out by seeing if it created an output .hi file
1831 if ( ! -f $hsc_hi && $ProduceHi !~ /-nohifile=/ ) {
1832 # Doesn't exist, so we bailed out early.
1833 # Tell the C compiler and assembler not to run
1834 $do_cc = 0; $do_as = 0;
1836 # Update dependency info, touch both object file and
1837 # interface file, so that the following invariant is
1840 # a dependent module's interface file should after recompilation
1841 # checking be newer than the interface files of its imports.
1843 # That is, if module A's interface file changes, then module B
1844 # (which import from A) needs to be checked.
1845 # If A's change does not affect B, which causes the compiler to bail
1846 # out early, we still need to touch the interface file of B. The reason
1847 # for this is that B may export A's interface.
1849 &run_something("touch $ofile_target",
1850 "Touch $ofile_target, to propagate dependencies") if $HscOut ne '-N=';
1851 &run_something("touch $hifile_target",
1852 "Touch $hifile_target, to propagate dependencies") if $ProduceHi =~ /-nohifile=/ ;
1856 # Didn't bail out early (new .hi file) so we thunder on
1858 # If non-interactive, heave in the consistency info at the end
1859 # NB: pretty hackish (depends on how $output is set)
1860 if ( ! $going_interactive ) {
1861 if ( $HscOut eq '-C=' ) {
1862 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
1864 } elsif ( $HscOut eq '-S=' ) {
1865 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
1866 $consist =~ s/,/./g;
1867 $consist =~ s/\//./g;
1868 $consist =~ s/-/_/g;
1869 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
1870 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
1872 &run_something($to_do, 'Pin on Haskell consistency info');
1876 # Interface-handling is important enough to live off by itself
1877 if ( $ProduceHi !~ /-nohifile=/ ) { # If we've produced one, process it.
1878 require('ghc-iface.prl') || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
1879 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
1881 # if we're going to split up object files,
1882 # we inject split markers into the .hc file now
1883 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
1884 &inject_split_markers ( $hsc_out );
1887 # save a copy of the .hc file, even if we are carrying on...
1888 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
1889 &saveIntermediate($ifile_root , "hc" , $hsc_out);
1899 local($ifile_root, $hsc_out, $hsc_hi, $going_interactive) = @_;
1901 # prepend comma to HsP flags (so hsc can tell them apart...)
1902 foreach $a ( @HsP_flags ) { $a = ",$a" unless $a =~ /^,/; }
1904 &makeHiMap() unless $HiMapDone;
1905 #print STDERR "HiIncludes: $HiIncludeString\n";
1906 push(@HsC_flags, "-himap=$HiIncludeString");
1908 # here, we may produce .hc/.s and/or .hi files
1909 local($output) = '';
1910 #@Files_to_tidy = ();
1912 if ( $going_interactive ) {
1913 # don't need .hi unless going to show it on stdout:
1914 $ProduceHi = '-nohifile=' if ! $HiOnStdout;
1915 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
1918 # set up for producing output/.hi; note that flag twiddling
1919 # may mean that nothing will actually be produced:
1920 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out";
1921 push(@Files_to_tidy, $hsc_hi, $hsc_out );
1923 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
1924 if ( $CollectingGCstats ) {
1925 push(@HsC_rts_flags, "-S$ifile_root.stat");
1926 push(@Files_to_tidy, "$ifile_root.stat");
1929 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
1930 # emit nofibbish time/bytes-alloc stats to stderr;
1931 # see later .stat file post-processing
1932 print STDERR "warning: both -Rgc-stats and -Rghc-timing used, -Rghc-timing wins." if $CollectingGCstats;
1933 push(@HsC_rts_flags, "-s$Tmp_prefix.stat");
1934 push(@Files_to_tidy, "$Tmp_prefix.stat");
1938 if ($Specific_dump_file ne '') {
1939 $dump = "2>> $Specific_dump_file";
1940 $Using_dump_file = 1;
1944 # Win32 only: If the command processor used by system()
1945 # exec()s the application as an ordinary Win32 executable,
1946 # we're in trouble here, since the command line is likely
1947 # to be > 255 chars long. To work around this situation,
1948 # $HsC also understands `at-files', i.e., `@file' on the
1949 # command line will cause $HsC to add the contents of `file'
1950 # to the command line.
1952 # [ Note: support for `at-files' is not compiled in by default ]
1953 $cmd_line_opts_via_at_file=0;
1954 if ($cmd_line_opts_via_at_file) {
1955 local($to_do_opts) = "$Tmp_prefix.opts";
1956 open(OPTS, "> $Tmp_prefix.opts") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.opts\n");
1957 print OPTS "$dump @HsC_flags $CoreLint $StgLint $Verbose";
1959 $to_do = "$HsC @HsP_flags ,$hscpp_hsc \@$Tmp_prefix.opts $output +RTS @HsC_rts_flags";
1961 $to_do = "$HsC @HsP_flags ,$hscpp_hsc $dump @HsC_flags $CoreLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
1963 &run_something($to_do, 'Haskell compiler');
1965 # finish business w/ nofibbish time/bytes-alloc stats
1966 &process_ghc_timings() if $CollectGhcTimings;
1970 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
1971 of (module-name, pathname) pairs, one per line, separated by a space.
1974 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1978 # collect in %HiMap; write later; also used elsewhere in driver
1980 local($mod, $path, $d, $e);
1982 # reset the global variables:
1984 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1986 foreach $d ( @Import_dir ) {
1987 if ($HiIncludeString) {
1988 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix}";
1990 $HiIncludeString = "$d%.${HiSuffix}";
1995 foreach $d ( @SysImport_dir ) {
1996 if ($HiIncludeString) {
1997 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix_prelude}";
1999 $HiIncludeString = "${d}%.${HiSuffix_prelude}";
2008 %************************************************************************
2010 \section[Driver-misc-utils]{Miscellaneous utilities}
2012 %************************************************************************
2014 %************************************************************************
2016 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
2018 %************************************************************************
2022 local($ofile,$def_suffix) = @_;
2024 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
2028 local($orig_file, $def_suffix) = @_;
2029 if ($Specific_output_dir eq '') { # do nothing
2030 &osuf_ify($orig_file, $def_suffix);
2032 local ($orig_file_only);
2033 ($orig_file_only = $orig_file) =~ s|.*/||;
2034 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
2041 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
2043 local($includes) = '-I' . join(' -I', @Include_dir);
2046 local($c_flags) = "@CcBoth_flags";
2047 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2049 # "input" files to use that are not in some weird directory;
2050 # to help C compilers grok .hc files [ToDo: de-hackify]
2051 local($cc_help) = "ghc$$.c";
2052 local($cc_help_s) = "ghc$$.s";
2055 $s_output = ($is_hc_file || $TargetPlatform =~ /^(powerpc|rs6000|hppa|i386)/) ? $cc_as_o : $cc_as;
2056 $c_flags .= " @CcRegd_flags";
2057 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2059 # C compiler won't like the .hc extension. So we create
2060 # a tmp .c file which #include's the needful.
2061 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2062 if ( $is_hc_file ) {
2064 #ifdef __STG_GCC_REGS__
2065 # if ! (defined(MAIN_REG_MAP) || defined(MARK_REG_MAP) || defined(SCAN_REG_MAP) || defined(SCAV_REG_MAP) || defined(FLUSH_REG_MAP))
2066 # define MAIN_REG_MAP
2069 #include "stgdefs.h"
2071 # user may have asked for #includes to be injected...
2072 print TMP @CcInjects if $#CcInjects >= 0;
2074 # heave in the consistency info
2075 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2077 print TMP "#include \"$hsc_out\"\n";
2078 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2080 # Don't redirect stderr into intermediate file if slamming output onto stdout (e.g., with -E)
2081 local($fuse_stderr) = "2>&1" if ! $Only_preprocess_hc;
2082 local($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 )";
2083 # note: __GLASGOW_HASKELL__ is pointedly *not* #defined at the C level.
2085 if ( $Only_preprocess_hc ) { # HACK ALERT!
2086 $to_do =~ s/ -S\b//g;
2088 push(@Files_to_tidy, $cc_help, $cc_help_s, $s_output );
2089 $PostprocessCcOutput = 1 if ! $Only_preprocess_hc; # hack, dear hack...
2090 &run_something($to_do, 'C compiler');
2091 $PostprocessCcOutput = 0;
2092 if ( $Only_preprocess_hc ) {
2093 system("$Cat $Tmp_prefix.ccout");
2095 unlink($cc_help, $cc_help_s);
2101 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2103 if ( $is_hc_file ) {
2104 # dynamically load assembler-fiddling code, which we are about to use:
2105 require('ghc-asm.prl')
2106 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2109 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2112 # post-process the assembler [.hc files only]
2113 &mangle_asm($cc_as_o, $cc_as);
2117 #OLD: local($target) = 'oops';
2118 #OLD: $target = '-alpha' if $TargetPlatform =~ /^alpha-/;
2119 #OLD: $target = '-hppa' if $TargetPlatform =~ /^hppa/;
2120 #OLD: $target = '-old-asm' if $TargetPlatform =~ /^i386-/;
2121 #OLD: $target = '-m68k' if $TargetPlatform =~ /^m68k-/;
2122 #OLD: $target = '-mips' if $TargetPlatform =~ /^mips-/;
2123 #OLD: $target = '' if $TargetPlatform =~ /^powerpc-/;
2124 #OLD: $target = '-solaris' if $TargetPlatform =~ /^sparc-sun-solaris2/;
2125 #OLD: $target = '-sparc' if $TargetPlatform =~ /^sparc-sun-sunos4/;
2127 #OLD: if ( $target ne '' ) {
2128 #OLD: require("ghc-asm$target.prl")
2129 #OLD: || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm$target.prl!\n");
2130 #OLD: &mangle_asm($cc_as_o, "$cc_as-2"); # the OLD one!
2131 #OLD: &run_something("$Cmp -s $cc_as-2 $cc_as || $Diff $cc_as-2 $cc_as 1>&2 || exit 0",
2132 #OLD: "Diff'ing old and new mangled .s files"); # NB: to stderr
2135 } elsif ($TargetPlatform =~ /^hppa/) {
2136 # minor mangling of non-threaded files for hp-pa only
2137 require('ghc-asm.prl')
2138 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2139 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2141 } elsif ($TargetPlatform =~ /^powerpc|^rs6000/) {
2142 # minor mangling of non-threaded files for powerpcs and rs6000s
2143 require('ghc-asm.prl')
2144 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-powerpc.prl!\n");
2145 &mini_mangle_asm_powerpc($cc_as_o, $cc_as);
2146 } elsif ($TargetPlatform =~ /^i386/) {
2147 # extremely-minor OFFENSIVE mangling of non-threaded just one file
2148 require('ghc-asm.prl')
2149 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2150 &mini_mangle_asm_i386($cc_as_o, $cc_as);
2153 # save a copy of the .s file, even if we are carrying on...
2154 #if ($do_as && $Keep_s_file_too) {
2155 # &saveIntermediate($ifile_root , "s" , $cc_as);
2162 local($as_out, $ifile_root) = @_;
2164 local($asmblr) = ( $As ) ? $As : $CcRegd;
2166 if ( ! $SplitObjFiles ) {
2167 local($to_do) = "$asmblr -o $as_out -c @As_flags $cc_as";
2168 push(@Files_to_tidy, $as_out );
2169 &run_something($to_do, 'Unix assembler');
2171 } else { # more complicated split-ification...
2173 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2175 # If -odir is used, great, just pin it in front of the
2176 # generated split file names. If it hasn't been set, we
2177 # snatch it from the ifile_root.
2181 if ( $Specific_output_dir eq '' ) {
2182 $Specific_output_dir = ${ifile_root};
2185 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2186 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2187 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2188 push(@Files_to_tidy, $split_out );
2190 &run_something($to_do, 'Unix assembler');
2196 %************************************************************************
2198 \subsection[Driver-run-something]{@run_something@: Run a phase}
2200 %************************************************************************
2204 local($str_to_do, $tidy_name) = @_;
2206 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2207 print STDERR "$str_to_do\n" if $Verbose;
2209 if ($Using_dump_file) {
2210 open(DUMP, ">> $Specific_dump_file")
2211 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2212 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2214 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2217 local($return_val) = 0;
2219 if ( length($str_to_do) > 4000) {
2220 # 4000 - on the random side, just like the *real* ARG_MAX
2223 # With some shells, command lines of this length may
2224 # very well cause trouble. To safeguard against this, we squirrel the
2225 # command into a file and exec that.
2226 local ($sh) = $ENV{'REAL_SHELL'};
2227 print STDERR "Backup plan A: saving cmd line in ${Tmp_prefix}.sh and executing that with $sh\n" if $Verbose;
2228 open (TEMP, "> ${Tmp_prefix}.sh") ||
2229 &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.sh'\n");
2230 print TEMP "$Time $str_to_do\n";
2232 &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.sh'\n");
2233 system("$sh $Tmp_prefix.sh");
2236 unlink "${Tmp_prefix}.sh";
2238 system("$Time $str_to_do");
2242 if ( $PostprocessCcOutput ) { # hack, continued
2243 open(CCOUT, "< $Tmp_prefix.ccout")
2244 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2246 next if /attribute directive ignored/;
2247 next if /call-clobbered/;
2248 next if /from .*COptRegs\.lh/;
2249 next if /from .*(stg|rts)defs\.h:/;
2250 next if /from ghc\d+.c:\d+:/;
2251 next if /from .*\.lc/;
2252 next if /from .*SMinternal\.l?h/;
2253 next if /ANSI C does not support \`long long\'/;
2254 next if /warning:.*was declared \`extern\' and later \`static\'/;
2255 next if /warning: assignment discards \`const\' from pointer target type/;
2256 next if /: At top level:$/;
2257 next if /: In function \`.*\':$/;
2258 next if /\`ghc_cc_ID\' defined but not used/;
2261 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2264 if ($return_val != 0) {
2265 if ($Using_dump_file) {
2266 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2268 &tidy_up_and_die($return_val, '');
2270 $Using_dump_file = 0;
2274 %************************************************************************
2276 \subsection[Driver-ghc-timing]{Emit nofibbish GHC timings}
2278 %************************************************************************
2280 NB: nearly the same as in @runstdtest@ script.
2283 sub process_ghc_timings {
2284 local($StatsFile) = "$Tmp_prefix.stat";
2285 local($SysSpecificTiming) = 'ghc';
2287 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2288 local($max_live) = 0;
2289 local($tot_live) = 0; # for calculating residency stuff
2290 local($tot_samples) = 0;
2293 if (! /Minor/ && /^\s*\d+\s+\d+\s+(\d+)\s+\d+\.\d+\%/ ) {
2294 $max_live = $1 if $max_live < $1;
2298 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2300 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2301 $MaxResidency = $1; $ResidencySamples = $2;
2304 $GCs = $1 if /^\s*([0-9,]+) garbage collections? performed/;
2306 # The presence of -? in the following pattern is only there to
2307 # accommodate 0.29 && <= 2.05 RTS'
2308 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*-?(\d+\.\d\d)s elapsed\)/ ) {
2309 $InitTime = $1; $InitElapsed = $2;
2310 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2311 $MutTime = $1; $MutElapsed = $2;
2312 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2313 $GcTime = $1; $GcElapsed = $2;
2316 close(STATS) || die "Failed when closing $StatsFile\n";
2317 if ( $tot_samples > 0 ) {
2318 $ResidencySamples = $tot_samples;
2319 $MaxResidency = $max_live;
2320 $AvgResidency = int ($tot_live / $tot_samples) ;
2323 # warn about what we didn't find
2324 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2325 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2326 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2327 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2328 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2329 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2330 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2331 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2333 # things we didn't necessarily expect to find
2334 $MaxResidency = 0 unless defined($MaxResidency);
2335 $AvgResidency = 0 unless defined($AvgResidency);
2336 $ResidencySamples = 0 unless defined($ResidencySamples);
2339 $BytesAlloc =~ s/,//g;
2340 $MaxResidency =~ s/,//g;
2342 $InitTime =~ s/,//g;
2343 $InitElapsed =~ s/,//g;
2345 $MutElapsed =~ s/,//g;
2347 $GcElapsed =~ s/,//g;
2349 # print out what we found
2350 print STDERR "<<$SysSpecificTiming: ",
2351 "$BytesAlloc bytes, $GCs GCs, $AvgResidency/$MaxResidency avg/max bytes residency ($ResidencySamples samples), $InitTime INIT ($InitElapsed elapsed), $MutTime MUT ($MutElapsed elapsed), $GcTime GC ($GcElapsed elapsed)",
2352 " :$SysSpecificTiming>>\n";
2359 %************************************************************************
2361 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2363 %************************************************************************
2367 local($to_do) = "\n$Rm $Tmp_prefix*";
2368 if ( $Tmp_prefix !~ /^\s*$/ ) {
2369 print STDERR "$to_do\n" if $Verbose;
2374 sub tidy_up_and_die {
2375 local($return_val, $msg) = @_;
2377 # delete any files to tidy
2378 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2379 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2383 exit (($return_val == 0) ? 0 : 1);
2387 %************************************************************************
2389 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2391 %************************************************************************
2393 Some command-line arguments take an argument, e.g.,
2394 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2395 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2396 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2398 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2399 gobble the second argument (and probably set the heapsize to something
2403 local(*Args, $option, $rest_of_arg) = @_;
2405 if ($rest_of_arg ne '') {
2406 return($rest_of_arg);
2407 } elsif ($#Args >= 0) {
2408 local($temp) = $Args[0]; shift(@Args);
2411 print STDERR "$Pgm: no argument following $option option\n";
2422 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2424 foreach $f ( @HsC_antiflags ) {
2425 return(0) if $flag eq $f;
2427 # foreach $f ( @HsC_flags ) {
2428 # return(0) if $flag eq $f;
2433 sub squashHscFlag { # pretty terrible
2437 foreach $f ( @HsC_flags ) {
2438 if ($flag eq $f) { $f = ''; }
2446 foreach $f ( @flags ) {
2447 push( @HsC_flags, $f ) if &isntAntiFlag($f);
2454 local($syslib) = @_;
2456 unshift(@SysImport_dir,
2457 $INSTALLING ? "$InstLibDirGhc/imports/$syslib"
2458 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/$syslib");
2460 push(@SysLibrary_dir,
2461 $INSTALLING ? ("$InstLibDirGhc")
2462 : ("$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/$syslib",
2463 "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/$syslib/cbits"));
2465 push(@SysLibrary, "-lHS$syslib");
2466 push(@SysLibrary, "-lHS${syslib}_cbits")
2467 unless $syslib =~ /^(contrib|exts|conc|win32)$/; #HACK! have no cbits
2471 Source files may have {-# OPTIONS ... #-} pragmas at the top, containing
2472 command line options we want to append to collection of commands specified
2473 directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell
2474 file for any such pragmas:
2477 sub check_for_source_options {
2478 local($file,$ifile) = @_;
2479 local($comment_start,$comment_end);
2481 if ($ifile =~ /\.hc$/ ||
2484 $ifile =~ /_s$/ ) { # `Real' C intermediate
2485 $comment_start = "/\\*";
2486 $comment_end = "\\*/";
2487 } else { # Assume it is a file containing Haskell source
2488 $comment_start = "{-#";
2489 $comment_end = "#-}";
2492 open(FILE,$file) || return(1); # No big loss
2495 if ( /^${comment_start} OPTIONS (.*)${comment_end}$/ ) {
2496 # add the options found at the back of the command line.
2497 local(@entries) = split(/\s+/,$1);
2498 print STDERR "Found OPTIONS " . join(' ',@entries) . " in $file\n" if $Verbose;
2499 push(@File_options, @entries);
2501 elsif ( /^$/ ) { # ignore empty lines
2504 elsif ( /^#line.+$/ ) { # ignore comment lines (unused..ToDo: rm )
2507 elsif ( /^{-# LINE.+$/ ) { # ignore line pragmas
2510 else { # stop looking, something non-empty / not
2511 # ${comment_start} OPTIONS .. ${comment_end} encountered.
2512 close(FILE);return(0);
2521 We split the initial argv up into three arrays:
2527 the reason for doing so is to be able to deal
2528 with {-# OPTIONS #-} pragma in source files properly.
2534 arg: while($_ = $args[0]) {
2536 # sigh, we have to deal with these -option arg specially here.
2537 /^-(tmpdir|odir|ohi|o|isuf|osuf|hisuf|hisuf-prelude|odump|syslib)$/ &&
2538 do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; };
2539 /^--?./ && do { push(@Cmd_opts, $_); next arg; };
2541 if (/\.([^_]+_)?[oa]$/) {
2542 push(@Link_file, $_);
2544 push(@Input_file, $_);
2547 # input files must exist:
2549 print STDERR "$Pgm: input file doesn't exist: $_\n";
2557 When saving an intermediate file (.hc or .s) away, we
2558 have to prefix any OPTIONS found in the original source file.
2561 sub saveIntermediate {
2562 local ($final,$suffix,$tmp)= @_ ;
2565 # $final -- root of where to park ${final}.${suffix}
2566 # $tmp -- temporary file where hsc put the intermediate file.
2568 # Delete the old file
2569 $to_do = "$Rm ${final}.${suffix}"; &run_something($to_do, "Removing old .${suffix} file");
2571 if ( $#File_options >= 0 ) { # OPTIONS found in Haskell source unit
2572 # Add OPTION comment to the top of the generated .${suffix} file
2573 open(TEMP, "> ${final}.${suffix}") || &tidy_up_and_die(1,"Can't open ${final}.${suffix}\n");
2574 print TEMP "/* OPTIONS " . join(' ',@File_options) . " */\n";
2576 print STDERR "Prepending OPTIONS: " . join(' ',@File_options) . " to ${final}.${suffix}\n" if $Verbose;
2578 $to_do = "$Cat $tmp >> ${final}.${suffix}";
2579 &run_something($to_do, "Saving copy of .${suffix} file");
2586 Command-line processor
2592 # can't use getopt(s); what we want is too complicated
2594 arg: while($_ = $Args[0]) {
2597 #---------- help -------------------------------------------------------
2598 if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; }
2600 #-----------version ----------------------------------------------------
2601 /^--version$/ && do { print STDERR "${ProjectName}, version ${ProjectVersion}, patchlevel ${ProjectPatchLevel}\n"; exit $Status; };
2603 #---------- verbosity and such -----------------------------------------
2604 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
2606 #---------- what phases are to be run ----------------------------------
2607 /^-(no-)?recomp/ && do { $Do_recomp_chkr = ($1 eq '') ? 1 : 0; next arg; };
2609 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
2610 # change the global default:
2611 # we won't run cat; we'll run the real thing
2613 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
2615 # stop after generating C
2617 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
2618 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
2620 # leave out actual C generation (debugging) [also turns off interface gen]
2623 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
2624 # _do_ generate an interface; usually used as: -noC -hi
2625 /^-hi-with-(.*)$/ && do { $HiOnStdout = 1; $HiWith .= " $1" ; $ProduceHi = '-hifile='; next arg; };
2626 # limit ourselves to outputting a particular section.
2628 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
2629 # don't generate an interface (even if generating C)
2631 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
2632 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
2633 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
2634 /^-keep-hi-diffs$/ && do { $Keep_HiDiffs = 1; next arg; };
2636 # show/disable diffs if the interface file changes
2638 /^-E$/ && do { push(@CcBoth_flags, '-E');
2639 $Only_preprocess_C = 1;
2640 $Do_as = 0; $Do_lnkr = 0; next arg; };
2641 # stop after preprocessing C
2642 /^-M$/ && do { $Only_generate_deps = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2643 # only generate dependency information.
2644 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
2645 # stop after generating assembler
2647 /^-c$/ && do { $Do_lnkr = 0; next arg; };
2648 # stop after generating .o files
2650 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
2651 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
2652 # don't do consistency-checking after a link
2654 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', '');
2655 $Tmp_prefix = "$Tmp_prefix/ghc$$";
2656 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
2658 # use an alternate directory for temp files
2660 #---------- redirect output --------------------------------------------
2662 # -o <file>; applies to the last phase, whatever it is
2663 # "-o -" sends it to stdout
2664 # if <file> has a directory component, that dir must already exist
2666 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', '');
2668 # Hack, of the worst sort: don't do validation of
2669 # odir argument if you're using -M (dependency generation).
2671 if ( ! $Only_generate_deps && ! -d $Specific_output_dir) {
2672 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
2677 /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', '');
2678 if ($Specific_output_file ne '-'
2679 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
2680 local($dir_part) = $1;
2681 if (! -d $dir_part) {
2682 print STDERR "$Pgm: no such directory: $dir_part\n";
2688 # NB: -isuf not documented yet (because it doesn't work yet)
2689 /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', '');
2690 if ($Isuffix =~ /\./ ) {
2691 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
2696 /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', '');
2697 if ($Osuffix =~ /\./ ) {
2698 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
2703 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
2704 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', '');
2705 if ($Specific_hi_file ne '-'
2706 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
2707 local($dir_part) = $1;
2708 if (! -d $dir_part) {
2709 print STDERR "$Pgm: no such directory: $dir_part\n";
2715 # The suffix to use when looking for interface files
2716 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', '');
2717 if ($HiSuffix =~ /\./ ) {
2718 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
2722 # ToDo: remove, not a `normal' user thing to do (should be automatic)
2723 /^-hisuf-prelude$/ && do { $HiSuffix_prelude = &grab_arg_arg(*Args,'-hisuf-prelude', '');
2724 if ($HiSuffix =~ /\./ ) {
2725 print STDERR "$Pgm: -hisuf-prelude suffix shouldn't contain a .\n";
2729 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', '');
2730 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
2731 local($dir_part) = $1;
2732 if (! -d $dir_part) {
2733 print STDERR "$Pgm: no such directory: $dir_part\n";
2739 #-------------- scc & Profiling Stuff ----------------------------------
2741 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
2744 # generate auto SCCs on top level bindings
2745 # -auto-all = all top level bindings
2746 # -auto = only top level exported bindings
2747 $PROFauto = ( /-all/ )
2748 ? '-fauto-sccs-on-all-toplevs'
2749 : '-fauto-sccs-on-exported-toplevs';
2752 /^-caf-all/ && do { # generate individual CAF SCC annotations
2753 $PROFcaf = '-fauto-sccs-on-individual-cafs';
2756 /^-ignore-scc$/ && do {
2757 # forces ignore of scc annotations even if profiling
2758 $PROFignore_scc = '-W';
2761 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
2764 /^-unprof-scc-auto/ && do {
2765 # generate auto SCCs on top level bindings when not profiling.
2766 # Used to measure optimisation effects of presence of sccs.
2767 $UNPROFscc_auto = ( /-all/ )
2768 ? '-fauto-sccs-on-all-toplevs'
2769 : '-fauto-sccs-on-exported-toplevs';
2772 #--------- ticky/concurrent/parallel -----------------------------------
2773 # we sort out the details a bit later on
2775 /^-concurrent$/ && do { $CONCURing = 'c'; &add_syslib('concurrent'); next arg; };
2776 # concurrent Haskell; implies -syslib conc
2777 /^-gransim$/ && do { $GRANing = 'g'; &add_syslib('concurrent'); next arg; }; # GranSim
2778 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
2779 /^-parallel$/ && do { $PARing = 'p'; &add_syslib('concurrent'); next arg; }; # parallel Haskell
2781 #-------------- "user ways" --------------------------------------------
2783 (/^-user-setup-([a-oA-Z])$/ ) &&
2785 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
2787 local($stuff) = $UserSetupOpts{$BuildTag};
2788 local(@opts) = split(/\s+/, $stuff);
2790 # feed relevant ops into the arg-processing loop (if any)
2791 unshift(@Args, @opts) if $#opts >= 0;
2795 #---------- set search paths for libraries and things ------------------
2797 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
2798 # prepends the items to the list); -I is for including C .h files.
2800 /^-i$/ && do { @Import_dir = (); # import path cleared!
2801 @SysImport_dir = ();
2802 print STDERR "WARNING: import paths cleared by `-i'\n";
2805 /^-i(.*)/ && do { local(@new_items)
2806 = split( /:/, &grab_arg_arg(*Args,'-i', $1));
2807 unshift(@Import_dir, @new_items);
2810 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; };
2811 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; };
2812 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; };
2814 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1);
2815 print STDERR "$Pgm: no such system library (-syslib): $syslib\n",
2816 $Status++ unless $syslib =~ /^(exts|misc|posix|win32)$/;
2819 # The posix library is a `special' in that it relies on
2820 # the ghc system library (packed strings). Wielding our
2821 # sledgehammer, the problem is solved by silently including
2822 # the ghc system library as well.
2823 # (ToDo: `nub' -syslib list)
2825 &add_syslib($syslib);
2826 if ( $syslib eq 'posix' ) {
2827 &add_syslib('misc');
2828 } elsif ( $syslib eq 'misc' &&
2829 $TargetPlatform =~ /-solaris2$/ ) {
2830 # needed for Berkeley socket/nwork stuff.
2831 push(@SysLibrary, '-lnsl');
2832 } elsif ( $syslib eq 'win32' &&
2833 $TargetPlatform =~ /-cygwin32$/ ) {
2834 # need to get at UI/Graphics functionality.
2835 push(@SysLibrary, '-luser32 -lgdi32');
2839 #=======================================================================
2840 # various flags that we can harmlessly send to one program or another
2841 # (we will later "reclaim" some of the compiler ones now sent to gcc)
2842 #=======================================================================
2844 #---------- this driver itself (ghc) -----------------------------------
2845 # these change what executable is run for each phase:
2846 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
2847 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
2848 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
2849 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
2850 /^-pgma(.*)$/ && do { $As = $1; next arg; };
2851 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
2852 /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; };
2854 #---------- the get-anything-through opts (all pgms) -------------------
2855 # these allow arbitrary option-strings to go to any phase:
2856 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
2857 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
2858 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
2859 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
2860 /^-optp(.*)$/ && do { push(@HsP_flags, $1); next arg; };
2861 /^-optcpp(.*)$/ && do { push(@Cpp_define, $1); $Only_preprocess_hc = ($1 eq "-E"); next arg; };
2862 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
2863 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
2864 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
2865 /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; };
2867 #---------- Haskell C pre-processor (hscpp) ----------------------------
2868 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; };
2869 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; };
2871 #---------- post-Haskell "assembler"------------------------------------
2872 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
2873 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
2875 #---------- Haskell compiler (hsc) -------------------------------------
2877 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
2878 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
2880 /^-fhaskell-1\.3$/ && do { next arg; }; # a no-op right now
2882 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
2884 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
2885 # don't do stack checking using page fault `trick'.
2887 /^-fstack-check$/ && do { $StkChkByPageFaultOK = 0; next arg; };
2889 # have the compiler proper generate concurrent code,
2890 # really only used when you want to configure your own
2891 # special user compilation way. (Use -concurrent when
2892 # compiling `Concurrent Haskell' programs).
2894 # (ditto for -fgransim, fscc-profiling and -fticky-ticky)
2896 /^-fconcurrent$/ && do { push(@HsC_flags,$_); next arg; };
2897 /^-fscc-profiling$/ && do { push(@HsC_flags,$_); next arg; };
2898 /^-fticky-ticky$/ && do { push(@HsC_flags,$_); next arg; };
2899 /^-fgransim$/ && do { push(@HsC_flags,$_); next arg; };
2901 /^-split-objs/ && do {
2902 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|rs6000|sparc)-/ ) {
2904 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
2909 push(@HsC_flags, "-fglobalise-toplev-names");
2910 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
2912 require('ghc-split.prl')
2913 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
2917 /^-fallow-overlapping-instances$/ && do { push(@HsC_flags, $_);
2920 && do { push(@HsC_flags, $_);
2921 push(@HsP_flags, '-N');
2923 # push(@HsC_flags, '-fshow-import-specs');
2925 # -fglasgow-exts implies -syslib exts
2926 &add_syslib('exts');
2930 /^-fspeciali[sz]e-unboxed$/
2931 && do { $Oopt_DoSpecialise = '-fspecialise';
2932 $Oopt_SpecialiseUnboxed = '-fspecialise-unboxed';
2935 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
2936 /^-fno-speciali[sz]e$/
2937 && do { $Oopt_DoSpecialise = ''; next arg; };
2940 # Now the foldr/build options, which are *on* by default (for -O).
2943 && do { $Oopt_FoldrBuild = 1;
2944 $Oopt_FB_Support = '-fdo-arity-expand';
2948 /^-fno-foldr-build$/
2949 && do { $Oopt_FoldrBuild = 0;
2950 $Oopt_FB_Support = '';
2953 /^-fno-foldr-build-rule$/
2954 && do { $Oopt_FoldrBuild = 0;
2957 /^-fno-enable-tech$/
2958 && do { $Oopt_FB_Support = '';
2961 /^-fno-snapback-to-append$/
2962 && do { $Oopt_FoldrBuildInline .= ' -fdo-not-fold-back-append ';
2965 # --------------- Renamer -------------
2968 /^-fno-prune-tydecls$/ && do { push(@HsC_flags, $_); next arg; };
2969 /^-fno-prune-instdecls$/ && do { push(@HsC_flags, $_); next arg; };
2973 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
2974 /^-fvia-[cC]$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
2979 && do { push(@HsC_flags, $_); next arg };
2981 /^(-fmax-simplifier-iterations)(.*)$/
2982 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2);
2984 /^(-fshow-simplifier-progress)/
2985 && do { $Oopt_ShowSimplifierProgress = $1;
2988 /^-fno-pedantic-bottoms$/
2989 && do { $Oopt_PedanticBottoms = ''; next arg; };
2991 /^-fdo-monad-eta-expansion$/
2992 && do { $Oopt_MonadEtaExpansion = $_; next arg; };
2994 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
2995 && do { push(@HsC_flags, $_); next arg; };
2997 /^(-freturn-in-regs-threshold)(.*)$/
2998 && do { local($what) = $1;
2999 local($num) = &grab_arg_arg(*Args,$what, $2);
3000 if ($num < 2 || $num > 8) {
3001 die "Bad experimental flag: $_\n";
3003 $HscOut = '-C='; # force using C compiler
3004 push(@HsC_flags, "$what$num");
3005 push(@CcRegd_flags, "-D__STG_REGS_AVAIL__=$num");
3009 # --------------- Warnings etc. ------
3011 /^-fshow-import-specs/
3012 && do { push(@HsC_flags, $_); next arg; };
3014 /^-fsignatures-required/
3015 && do { push(@HsC_flags, $_); next arg; };
3017 /^-fwarn-(.*)$/ && do { push(@HsC_flags, $_); next arg; };
3019 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
3020 &squashHscFlag("-f$1");
3023 /^-W$/ && do { push(@HsC_flags, @MinusWOpts); next arg; };
3024 /^-Wall$/ && do { push(@HsC_flags, @MinusWallOpts); next arg; };
3025 /^(-Wnot|w)$/ && do { foreach (@Hsc_flags) {
3026 /^-fwarn-(.*)$/ && do { $_=''; };
3028 push(@HsC_antiflags, @StandardWarnings);
3031 # --------------- platform specific flags (for gcc mostly) ----------------
3033 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes,
3034 # for 2.6.x..?, does not apply for 2.7.2
3036 unshift(@CcBoth_flags, ( $_ ));
3039 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
3040 && do { # for GCC for SPARCs
3041 unshift(@CcBoth_flags, ( $_ ));
3044 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
3045 $StolenX86Regs = $1;
3048 #*************** ... and lots of debugging ones (form: -d* )
3050 # -d(no-)core-lint is done this way so it is turn-off-able.
3051 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
3052 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
3053 # Ditto for STG lint
3054 /^-dstg-lint/ && do { $StgLint = '-dstg-lint'; next arg; };
3055 /^-dno-stg-lint/ && do { $StgLint = ''; next arg; };
3057 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
3058 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
3059 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
3060 /^-dshow-rn-stats/ && do { push(@HsC_flags, $_); next arg; };
3061 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
3062 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
3063 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
3064 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
3066 #*************** ... and now all these -R* ones for its runtime system...
3068 /^-Rscale-sizes?(.*)/ && do {
3069 $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1);
3072 /^(-H|-Rmax-heapsize)(.*)/ && do {
3073 local($heap_size) = &grab_arg_arg(*Args,$1, $2);
3074 if ($heap_size =~ /(\d+)[Kk]$/) {
3075 $heap_size = $1 * 1000;
3076 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
3077 $heap_size = $1 * 1000 * 1000;
3078 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
3079 $heap_size = $1 * 1000 * 1000 * 1000;
3081 if ($heap_size <= 0) {
3082 print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n";
3083 $Specific_heap_size = 0;
3085 # if several heap sizes given, take the largest...
3086 } elsif ($heap_size >= $Specific_heap_size) {
3087 $Specific_heap_size = $heap_size;
3089 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n";
3093 /^(-K|Rmax-(stk|stack)size)(.*)/ && do {
3095 local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3);
3096 if ($stk_size =~ /(\d+)[Kk]$/) {
3097 $stk_size = $1 * 1000;
3098 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
3099 $stk_size = $1 * 1000 * 1000;
3100 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
3101 $stk_size = $1 * 1000 * 1000 * 1000;
3103 if ($stk_size <= 0) {
3104 print STDERR "$Pgm: resetting stack-size to zero!!! $stk_size\n";
3105 $Specific_stk_size = 0;
3107 # if several stack sizes given, take the largest...
3108 } elsif ($stk_size >= $Specific_stk_size) {
3109 $Specific_stk_size = $stk_size;
3111 print STDERR "$Pgm: ignoring stack-size-setting option ($flag $stk_size)...not the largest seen\n";
3115 /^-Rgc-stats$/ && do { $CollectingGCstats++;
3116 # the two RTSs do this diff ways; we will try to compensate
3119 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
3121 #---------- C high-level assembler (gcc) -------------------------------
3122 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
3124 # -dgcc-lint is a useful way of making GCC very fussy.
3125 # From alan@spri.levels.unisa.edu.au (Alan Modra).
3126 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
3127 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
3128 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
3130 # inject "#include <wurble>" into the compiler's C output!
3132 /^-#include(.*)/ && do {
3133 local($to_include) = &grab_arg_arg(*Args,'-#include', $1);
3134 push(@CcInjects, "#include $to_include\n");
3137 #---------- Linker (gcc, really) ---------------------------------------
3139 /^-static$/ && do { push(@Ld_flags, $_); next arg; };
3141 #---------- mixed cc and linker magic ----------------------------------
3142 # this optimisation stuff is finally sorted out later on...
3144 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
3146 /^-O[1-2]?$/ && do {
3147 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
3148 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
3150 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
3153 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
3155 /^-Ofile(.*)/ && do {
3157 local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1);
3158 @HsC_minusO3_flags = ();
3160 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
3163 s/\#.*//; # death to comments
3164 s/[ \t]+//g; # death to whitespace
3165 next if /^$/; # ditto, blank lines
3166 s/([()*{}])/\\$1/g; # protect shell metacharacters
3168 push(@CcBoth_flags, $1);
3170 push(@HsC_minusO3_flags, $_);
3176 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
3177 # in the consistency info
3181 #---------- linking .a file --------------------------------------------
3183 /^-Main(.*)/ && do {
3184 # specifies main or mainPrimIO to be linked
3188 #---------- catch unrecognized flags -----------------------------------
3191 print STDERR "$Pgm: unrecognised option: $_\n";
3197 } # end of processArgs