2 % (c) The GRASP/AQUA Project, Glasgow University, 1992-1997
5 This is the driver script for the Glasgow Haskell compilation system.
6 It is written in \tr{perl}. The first section includes a long
7 ``usage'' message that describes how the driver is supposed to work.
9 %************************************************************************
11 \section[Driver-usage]{Usage message}
13 %************************************************************************
16 ($Pgm = $0) =~ s|.*/||;
17 $ShortUsage = "\nUsage: For basic information, try the `-help' option.\n";
18 $LongUsage = "\n" . <<EOUSAGE;
19 Use of the Glorious Haskell Compilation System driver:
21 $Pgm [command-line-options-and-input-files]
23 ------------------------------------------------------------------------
24 This driver ($Pgm) guides each input file through (some of the)
25 possible phases of a compilation:
27 - unlit: extract code from a "literate program"
28 - hscpp: run code through the C pre-processor (if -cpp flag given)
29 - hsc: run the Haskell compiler proper
30 - gcc: run the C compiler (if compiling via C)
31 - as: run the assembler
34 For each input file, the phase to START with is determined by the
36 - .lhs literate Haskell: unlit
37 - .hs illiterate Haskell: hsc
38 - .hc C from the Haskell compiler: gcc
39 - .c C not from the Haskell compiler: gcc
40 - .s assembly language: as
41 - other passed directly to the linker: ld
43 If no files are given on the command line, input is taken from
44 standard input, and processing is as for an .hs file. (All output is
45 to stdout or stderr, however).
47 The phase at which to STOP processing is determined by a command-line
49 -E stop after generating preprocessed, de-litted Haskell (used in conjunction with -cpp)
50 -C stop after generating C (.hc output)
51 -S stop after generating assembler (.s output)
52 -c stop after generating object files (.o output)
54 Other commonly-used options are:
56 -O An `optimising' package of compiler flags, for faster code
58 -prof Compile for cost-centre profiling
59 (add -auto for automagic cost-centres on top-level functions)
61 -fglasgow-exts Allow Glasgow extensions (unboxed types, etc.)
63 -H14m Increase compiler's heap size
65 -M Output the Makefile rules recording the
66 dependencies of a list of Haskell files.
67 (ghc driver script calls upon the help of a
68 compatible mkdependHS script to do the actual
71 The User's Guide has more information about GHC's *many* options.
73 Given the above, here are some TYPICAL invocations of $Pgm:
75 # compile a Haskell module to a .o file, optimising:
77 # link three .o files into an executable called "test":
78 % $Pgm -o test Foo.o Bar.o Baz.o
79 # compile a Haskell module to C (a .hc file), using a bigger heap:
80 % $Pgm -C -H16m Foo.hs
81 # compile Haskell-produced C (.hc) to assembly language:
83 ------------------------------------------------------------------------
87 %************************************************************************
89 \section[Driver-init]{Initialisation}
91 %************************************************************************
93 The driver script need to be told where to find these executables, so
94 in the course of building the driver `executable', make-variables holding
95 these are prepended to the de-litted version of this file. The variables are:
100 HOSTPLATFORM TARGETPLATFORM
102 PROJECTNAME PROJECTVERSION PROJECTPATCHLEVEL
106 bindir libdir libexecdir datadir
110 GHC_LIB_DIR GHC_RUNTIME_DIR GHC_UTILS_DIR GHC_INCLUDE_DIR
112 GHC_OPT_HILEV_ASM GhcWithNativeCodeGen
114 GHC_UNLIT GHC_HSCPP GHC_HSC GHC_SYSMAN
118 WAY_*_NAME WAY_*_HC_OPTS
124 Establish what executables to run for the various phases, what the
125 default options are for those phases, and other similar boring stuff.
128 select(STDERR); $| = 1; select(STDOUT); # no STDERR buffering, please.
130 $TargetPlatform = $TARGETPLATFORM;
132 $TopPwd = "${TOP_PWD}";
133 $InstBinDirGhc = "${bindir}";
134 $InstLibDirGhc = "${libdir}";
136 # Normally the same as InstLibDirGhc, but we accommodate
137 # for it being separate.
139 $InstLibExecDirGhc = "${libexecdir}";
140 $InstDataDirGhc = "${datadir}";
141 $InstSysLibDir = ( $INSTALLING ) ? "${InstLibDirGhc}/hslibs" : "$TopPwd/hslibs";
143 $Status = 0; # just used for exit() status
146 # set up signal handler
147 sub quit_upon_signal { &tidy_up_and_die(1, ''); }
148 $SIG{'INT'} = 'quit_upon_signal';
149 $SIG{'QUIT'} = 'quit_upon_signal';
151 # where to get "require"d .prl files at runtime (poor man's dynamic loading)
152 # (use LIB, not DATA, because we can't be sure of arch-independence)
153 @INC = ( ( $INSTALLING ) ? $InstLibDirGhc
154 : "$TopPwd/${CURRENT_DIR}" );
156 if ( $ENV{'TMPDIR'} ) { # where to make tmp file names
157 $Tmp_prefix = ($ENV{'TMPDIR'} . "/ghc$$");
159 print STDERR "TMPDIR has not been set to anything useful!\n" if (${TMPDIR} eq '');
160 $Tmp_prefix ="${TMPDIR}/ghc$$"; # TMPDIR set via Makefile when booting..
161 $ENV{'TMPDIR'} = ${TMPDIR}; # set the env var as well
164 # Some shells run into real trouble when command line and environment
165 # gets big (e.g., cmd lines of >4K to /bin/sh causes havoc on our
166 # Solaris-2.5.1 boxes - even though sysconf(_SC_ARG_MAX) reports 1M ...).
167 # To work around any such */bin/sh* problems, we will scribble such
168 # awfully long command lines into a temp file and exec that temp file
169 # with $(REAL_SHELL) (don't use the SHELL variable directly as this
170 # will normally get you the wrong thing when the driver is invoked
171 # from within `make'). If the REAL_SHELL variable isn't set, you'll
172 # get SHELL. This is all a terrible hack. (in case you hadn't reached
173 # the same conclusion by now :-)
177 if ( ! $ENV{'REAL_SHELL'} ) {
178 $ENV{'REAL_SHELL'} = $ENV{'SHELL'};
181 @Files_to_tidy = (); # files we nuke in the case of abnormal termination
183 $Unlit = ( $INSTALLING ) ? "$InstLibExecDirGhc/unlit"
184 : "$TopPwd/${CURRENT_DIR}/${GHC_UNLIT}";
188 $Diff = $CONTEXT_DIFF;
193 $HsCpp = # but this is re-set to "cat" (after options) if -cpp not seen
194 ( $INSTALLING ) ? "$InstLibExecDirGhc/hscpp"
195 : "$TopPwd/${CURRENT_DIR}/${GHC_HSCPP}";
198 $genSPECS_flag = ''; # See ../utils/hscpp/hscpp.prl
199 $HsC = ( $INSTALLING ) ? "$InstLibExecDirGhc/hsc"
200 : "$TopPwd/${CURRENT_DIR}/${GHC_HSC}";
202 # For PVM fiends only
203 $SysMan = ( $INSTALLING ) ? "$InstLibExecDirGhc/SysMan"
204 : "$TopPwd/${CURRENT_DIR}/${GHC_SYSMAN}";
209 # HsC_rts_flags: if we want to talk to the LML runtime system
210 # NB: we don't use powers-of-2 sizes, because this may do
211 # terrible things to cache behavior.
213 $Specific_heap_size = 6 * 1000 * 1000;
214 $Specific_stk_size = 1000 * 1000;
215 $Scale_sizes_by = 1.0;
219 The variables set by @setupOptFlags@ represent parts of the
220 -O/-O2/etc ``templates,'' which are filled in later, using these.
221 These are the default values, which may be changed by user flags.
225 $Oopt_UnfoldingUseThreshold = '-fsimpl-uf-use-threshold3';
226 $Oopt_MaxSimplifierIterations = '-fmax-simplifier-iterations4';
227 $Oopt_PedanticBottoms = '-fpedantic-bottoms'; # ON by default
228 $Oopt_MonadEtaExpansion = '';
229 $Oopt_FinalStgProfilingMassage = '';
231 $Oopt_SpecialiseUnboxed = '';
232 $Oopt_DoSpecialise = ''; # ToDo:LATER: '-fspecialise';
233 $Oopt_FoldrBuild = 0; # *Off* by default!
234 $Oopt_FB_Support = ''; # was '-fdo-arity-expand';
235 # $Oopt_FoldrBuildWW = 0; # Off by default
236 $Oopt_FoldrBuildInline = ''; # was '-fdo-inline-foldr-build';
237 $Oopt_ShowSimplifierProgress = '';
238 } # end of setupOptFlags
240 # Assign defaults to these right away.
244 Things to do with C compilers/etc:
246 $CcRegd = $GHC_OPT_HILEV_ASM;
247 @CcBoth_flags = ('-S'); # flags for *any* C compilation
251 # those for all files,
252 # those only for .c files;
253 # those only for .hc files
255 @CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__');
256 @CcRegd_flags_c = ();
257 @CcRegd_flags_hc = ();
259 $As = ''; # "assembler" is normally GCC
262 $Lnkr = ''; # "linker" is normally GCC
265 # 'nm' is used for consistency checking (ToDo: mk-world-ify)
266 # ToDo: check the OS or something ("alpha" is surely not the crucial question)
267 $Nm = ($TargetPlatform =~ /^alpha-/) ? 'nm -B' : 'nm';
270 Warning packages that are controlled by -W and -Wall. The 'standard'
271 warnings that you get all the time are
273 -fwarn-overlapping-patterns
274 -fwarn-incomplete-patterns
275 -fwarn-missing-methods
277 these are turned off by -Wnot.
280 @StandardWarnings = ('-fwarn-overlapping-patterns',
281 '-fwarn-missing-methods');
282 @MinusWOpts = (@StandardWarnings,
283 '-fwarn-incomplete-patterns',
284 '-fwarn-unused-names');
285 @MinusWallOpts = (@MinusWOpts,
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 hslibs)
373 @SysImport_dir = ( $INSTALLING )
374 ? ( "$InstLibDirGhc/imports" )
375 : ( "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/required"
376 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/ghc"
377 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/glaExts"
378 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent" );
380 # We need to look in ghc/ and glaExts/ when searching for implicitly needed .hi files, but
381 # we should really *not* look there for explicitly imported modules.
383 $GhcVersionInfo = int($PROJECTVERSION * 100 + .5); # i.e., round (X.Y * 100)
384 $Haskell1Version = 4; # i.e., Haskell 1.4
387 @UserLibrary_dir= (); #-L things;...
388 @UserLibrary = (); #-l things asked for by the user
390 @SysLibrary_dir = ( ( $INSTALLING ) #-syslib things supplied by the system
392 : ( "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR"
393 , "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/gmp"
394 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR"
395 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/cbits"
398 @SysLibrary = (); # will be built up as we go along
400 $TopClosureFile # defaults to 1.2 one; will be mangled later
401 = ( $INSTALLING) ? "$InstLibDirGhc/TopClosureXXXX.o"
402 : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/main/TopClosureXXXX.o";
404 # make depend for Haskell
406 = ( $INSTALLING ) ? "$InstBinDirGhc/mkdependHS"
407 : "$TopPwd/$CURRENT_DIR/$GHC_UTILS_DIR/mkdependHS/mkdependHS";
409 @MkDependHS_flags = ();
411 # do_link flag should not be reset while rescanning the cmd-line.
413 $Specific_output_dir = ''; # set by -odir <dir>
414 $Specific_output_file = ''; # set by -o <file>; "-" for stdout
417 Function to initialise the per-compilation-unit globals that
418 are used to guide and control the invocation of the different phases.
421 sub initDriverGlobals {
423 # reset the following options:
424 # RTS flags to use while compiling
426 @HsP_flags = (); # these are the flags destined solely for
427 # the flex/yacc parser
432 The optimisations/etc to be done by the compiler are {\em normally}
433 expressed with a \tr{-O} (or \tr{-O2}) flag, or by its absence.
436 $OptLevel = 0; # no -O == 0; -O == 1; -O2 == 2; -Ofile == 3
437 $MinusO2ForC = 0; # set to 1 if -O2 should be given to C compiler
438 $StolenX86Regs = 4; # **HACK*** of the very worst sort
442 @CcBoth_flags = ('-S'); # flags for *any* C compilation
445 # GCC flags: those for all files, those only for .c files; those only for .hc files
446 @CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__');
447 @CcRegd_flags_c = ();
448 @CcRegd_flags_hc = ();
450 @Import_dir = ('.'); #-i things
451 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
456 We are given a list of files with various presumably-known suffixes
457 (unknown-suffix files go straight to the linker). For each file, we
458 begin by assuming that we'll run every phase over it. However: (1)
459 global flags (\tr{-c}, \tr{-S}, etc.) tell us not to run any phase
460 past a certain point; and (2) the file's suffix tells us what phase to
461 start with. Linking is weird and kept track of separately.
463 Here are the initial defaults applied to all files:
465 $Cpp_flag_set = 0; # (hack)
466 $Only_preprocess_C = 0; # pretty hackish
467 $Only_preprocess_hc = 0; # ditto
468 $Only_generate_deps = 0; # "
469 $PostprocessCcOutput = 0;
471 # native code-gen or via C?
472 $HaveNativeCodeGen = $GhcWithNativeCodeGen;
473 $HscOut = '-C='; # '-C=' ==> .hc output; '-S=' ==> .s output; '-N=' ==> neither
475 if $HaveNativeCodeGen && $TargetPlatform =~ /^(alpha|sparc)-/;
476 # TEMP: disable x86 if $HaveNativeCodeGen && $TargetPlatform =~ /^(i386|alpha|sparc)-/;
477 $ProduceHi = '-hifile=';
482 $CollectingGCstats = 0;
483 $CollectGhcTimings = 0;
484 $DEBUGging = ''; # -DDEBUG and all that it entails (um... not really)
485 $PROFing = ''; # set to p or e if profiling
486 $PROFgroup = ''; # set to group if an explicit -Ggroup specified
487 $PROFauto = ''; # set to relevant hsc flag if -auto or -auto-all
488 $PROFcaf = ''; # set to relevant hsc flag if -caf-all
489 $PROFignore_scc = ''; # set to relevant parser flag if explicit sccs ignored
490 $UNPROFscc_auto = ''; # set to relevant hsc flag if forcing auto sccs without profiling
491 $TICKYing = ''; # set to t if compiling for ticky-ticky profiling
492 $PARing = ''; # set to p if compiling for PAR
493 $CONCURing = ''; # set to c if compiling for CONCURRENT
494 $GRANing = ''; # set to g if compiling for GRAN
495 $StkChkByPageFaultOK = 1; # may be set to 0 (false) for some builds
496 $Specific_hi_file = ''; # set by -ohi <file>; "-" for stdout
497 $Specific_dump_file = ''; # set by -odump <file>; "-" for stdout
498 $Using_dump_file = 0;
500 $Osuffix = ''; # default: use the normal suffix for that kind of output
502 $HiSuffix_prelude = '';
503 $Do_recomp_chkr = 0; # don't use the recompilatio checker unless asked
504 $Do_cc = -1; # a MAGIC indeterminate value; will be set to 1 or 0.
507 $Keep_hc_file_too = 0;
508 $Keep_s_file_too = 0;
509 $UseGhcInternals = 0; # if 1, may use GHC* modules
512 $Dump_parser_output = 0;
514 $Dump_asm_splitting_info = 0;
515 $NoImplicitPrelude = 0;
518 } # end of initDriverGlobals (Sigh)
520 # we split the argv passed to the driver into three:
525 # and files to be linked...
531 # cmd line options prefixing the unit we're compiling
536 We inject consistency-checking information into \tr{.hc} files (both
537 when created by the Haskell compiler and when compiled by the C
538 compiler), so that we can check that an executable is made from
539 consistently-built pieces. (The check is normally done just after
540 linking.) The checking is done by introducing/munging
541 \tr{what(1)}-style strings. Anyway, here are the relevant global
542 variables and their defaults:
544 $LinkChk = 1; # set to 0 if the link check should *not* be done
546 # major & minor version numbers; major numbers must always agree;
547 # minor disagreements yield a warning.
548 $HsC_major_version = 33;
549 $HsC_minor_version = 0;
550 $Cc_major_version = 36;
551 $Cc_minor_version = 1;
553 # options: these must always agree
554 $HsC_consist_options = ''; # we record, in this order:
555 # Build tag; debugging?
556 $Cc_consist_options = ''; # we record, in this order:
557 # Build tag; debugging?
560 %************************************************************************
562 \section[Driver-parse-argv]{Munge the command-line options}
564 %************************************************************************
566 Now slurp through the arguments.
569 &initDriverGlobals();
570 &splitCmdLine(@ARGV);
571 # Run through the cmd-line first time.
572 &processArgs(@Cmd_opts);
574 # Check to see if driver is only in the business
575 # to generate dependencies
576 if ( $Status == 0 && $Only_generate_deps ) {
578 push (@MkDependHS_flags, "-o$Osuffix") if $Osuffix;
579 push (@MkDependHS_flags, "-s$BuildTag") if $BuildTag;
580 push (@MkDependHS_flags, "-D__HASKELL1__=$Haskell1Version");
581 local($to_do) = "$MkDependHS @MkDependHS_flags -- @Cmd_opts -- @Input_file" ;
582 &run_something($to_do, 'Haskell dependencies');
586 # if there are several input files,
587 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
588 # (except if linking, of course)
590 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
591 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
592 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
593 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
594 print STDERR "\tPerhaps the -odir option will do what you want.\n";
599 # check for various pathological -o and -odir combinations...
600 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
601 if ($Specific_output_file eq '-') {
602 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
604 } else { # amalgamate...
605 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
606 # ToDo: check we haven't got a junk name now...
607 $Specific_output_dir = ''; # reset
611 # crash and burn if there were errors
613 print STDERR $ShortUsage;
618 %************************************************************************
620 \section[Driver-post-argv-mangling]{Setup after reading options}
622 %************************************************************************
624 %************************************************************************
626 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
628 %************************************************************************
630 We come now to the default ``wads of options'' that are turned on by
631 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
632 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
635 The user can also specify his/her own list of options in a file; in
636 that case, the work is already done (see stuff about @minusO3@,
639 GHC allows very precise control of what happens during a compilation.
640 Core-to-Core and STG-to-STG passes can be run in any order, as many
641 times as you like. Individual transformations can be turned on or
644 Sadly, however, there are some interdependencies \& Things You Must
645 Not Do. Here is the list.
649 \item[\tr{-fspecialise}:]
650 The specialiser must have dependency-analysed input; but if you run
651 the simplifier to do this, you must not let it toss away unused
652 bindings! (The typechecker conveys some specialisation info via
653 ``unused'' bindings...)
655 \item[\tr{-ffloat-inwards}:]
656 Floating inwards should be done before strictness analysis, because
657 the latter will give better results.
659 \item[\tr{-fstatic-args}:]
660 The static-arguments-transformation pass {\em must} have the
661 simplifier run right after it.
663 \item[\tr{-fcalc-inlinings[12]}:]
664 Not required, but there may be slight gains by re-simplifying after
665 this is done. (You could then \tr{-fcalc-inlinings} again, just for
668 \item[\tr{-ffull-laziness}:]
669 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
670 that's run. (Um, well, howzabout the simplifier just once more...)
675 \item[\tr{-fupdate-analysis}:]
676 It really really wants to be the last STG-to-STG pass that is run.
681 sub setupOptimiseFlags {
687 '-ffloat-lets-exposing-whnf',
688 '-ffloat-primops-ok',
691 # '-fdo-lambda-eta-expansion', # too complicated
693 # '-flet-to-case', # no strictness analysis, so...
694 $Oopt_PedanticBottoms,
695 # $Oopt_MonadEtaExpansion, # no thanks
697 # These two work fine, if you really want no simplification at all,
698 # for bizarre test reasons. But you get really terrible code if you use them,
699 # for example: let x = e in x
700 # with dozens of redundant thunks etc. So I'm leaving them out.
702 # '-fsimpl-uf-use-threshold0',
703 # '-fessential-unfoldings-only',
705 $Oopt_UnfoldingUseThreshold,
706 $Oopt_MaxSimplifierIterations,
707 $Oopt_ShowSimplifierProgress,
710 # '-ffull-laziness', # removed 95/04 WDP following Andr\'e's lead
712 $Oopt_FinalStgProfilingMassage
715 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
717 '-fdo-eta-reduction',
719 # initial simplify: mk specialiser happy: minimum effort please
723 '-fkeep-spec-pragma-ids', # required before specialisation
725 # I don't understand why we want -fessential-unfoldings-only here
726 # If we have it, the following nasty thing happens:
730 # where "*" means exported.
731 # In the essential-unfoldings pass we still substitute f for g
732 # but we don't substitute E for f first. So we get
736 # The g=f will get reverse-substituted later, but it's untidy.
738 # '-fessential-unfoldings-only',
739 # '-fsimpl-uf-use-threshold0',
741 '-fmax-simplifier-iterations1',
742 $Oopt_PedanticBottoms,
745 ($Oopt_DoSpecialise) ? (
746 '-fspecialise-overloaded',
747 $Oopt_SpecialiseUnboxed,
751 '-fsimplify', # need dependency anal after specialiser ...
752 '[', # need tossing before calc-inlinings ...
754 '-ffloat-lets-exposing-whnf',
755 '-ffloat-primops-ok',
759 # '-fdo-eta-reduction',
760 '-fdo-lambda-eta-expansion',
762 $Oopt_PedanticBottoms,
763 $Oopt_MonadEtaExpansion,
764 $Oopt_UnfoldingUseThreshold,
765 $Oopt_MaxSimplifierIterations,
766 $Oopt_ShowSimplifierProgress,
769 #LATER: '-fcalc-inlinings1', -- pointless for 2.01
771 # ($Oopt_FoldrBuildWW) ? (
772 # '-ffoldr-build-ww-anal',
773 # '-ffoldr-build-worker-wrapper',
777 # '-ffloat-lets-exposing-whnf',
778 # '-ffloat-primops-ok',
782 # '-fdo-eta-reduction',
783 # '-fdo-lambda-eta-expansion',
785 # $Oopt_PedanticBottoms,
786 # $Oopt_MonadEtaExpansion,
787 # $Oopt_UnfoldingUseThreshold,
788 # $Oopt_MaxSimplifierIterations,
789 # $Oopt_ShowSimplifierProgress,
793 # this pass-ordering sequence was agreed by Simon and Andr\'e
794 # (WDP 94/07, 94/11).
797 ($Oopt_FoldrBuild) ? (
798 '-ffoldr-build-on', # desugar list comprehensions for foldr/build
802 '-fignore-inline-pragma', # **** NB!
803 '-fdo-foldr-build', # NB
805 '-ffloat-lets-exposing-whnf',
806 '-ffloat-primops-ok',
810 # '-fdo-eta-reduction',
811 '-fdo-lambda-eta-expansion', # After full laziness
813 $Oopt_PedanticBottoms,
814 $Oopt_MonadEtaExpansion,
815 $Oopt_UnfoldingUseThreshold,
816 $Oopt_MaxSimplifierIterations,
817 $Oopt_ShowSimplifierProgress,
826 '-ffloat-lets-exposing-whnf',
827 '-ffloat-primops-ok',
831 '-fdo-eta-reduction',
832 '-fdo-lambda-eta-expansion',
834 ($Oopt_FoldrBuildInline),
835 # you need to inline foldr and build
836 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
837 # but do reductions if you see them!
838 $Oopt_PedanticBottoms,
839 $Oopt_MonadEtaExpansion,
840 $Oopt_UnfoldingUseThreshold,
841 $Oopt_MaxSimplifierIterations,
842 $Oopt_ShowSimplifierProgress,
850 '-ffloat-lets-exposing-whnf',
851 '-ffloat-primops-ok',
855 # '-fdo-eta-reduction',
856 '-fdo-lambda-eta-expansion',
858 '-flet-to-case', # Aha! Only done after strictness analysis
859 $Oopt_PedanticBottoms,
860 $Oopt_MonadEtaExpansion,
861 $Oopt_UnfoldingUseThreshold,
862 $Oopt_MaxSimplifierIterations,
863 $Oopt_ShowSimplifierProgress,
868 # Case-liberation for -O2. This should be after
869 # strictness analysis and the simplification which follows it.
873 # : "-fliberate-case -fsimplify [ $Oopt_FB_Support -ffloat-lets-exposing-whnf -ffloat-primops-ok -fcase-of-case -fdo-case-elim -fcase-merge -fdo-eta-reduction -fdo-lambda-eta-expansion -freuse-con -flet-to-case $Oopt_PedanticBottoms $Oopt_MonadEtaExpansion $Oopt_UnfoldingUseThreshold $Oopt_MaxSimplifierIterations $Oopt_ShowSimplifierProgress ]" ),
875 # Final clean-up simplification:
880 '-ffloat-lets-exposing-whnf',
881 '-ffloat-primops-ok',
885 # '-fdo-eta-reduction',
886 '-fdo-lambda-eta-expansion',
889 '-fignore-inline-pragma', # **** NB!
890 $Oopt_FoldrBuildInline,
891 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
892 # but still do reductions if you see them!
893 $Oopt_PedanticBottoms,
894 $Oopt_MonadEtaExpansion,
895 $Oopt_UnfoldingUseThreshold,
896 $Oopt_MaxSimplifierIterations,
897 $Oopt_ShowSimplifierProgress,
902 #LATER: '-fcalc-inlinings2', -- pointless for 2.01
907 $Oopt_FinalStgProfilingMassage,
913 # SPECIAL FLAGS for -O2
921 Sort out what we're going to do about optimising. First, the @hsc@
922 flags and regular @cc@ flags to worry about:
924 if ( $OptLevel <= 0 ) {
926 # for this level, we tell the parser -fignore-interface-pragmas
927 push(@HsC_flags, '-fignore-interface-pragmas');
928 # and tell the compiler not to produce them
929 push(@HsC_flags, '-fomit-interface-pragmas');
931 &add_Hsc_flags( @HsC_minusNoO_flags );
932 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
934 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
936 &add_Hsc_flags( @HsC_minusO_flags );
937 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
938 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
939 # but it *is* useful in compiling the garbage collectors (so said
940 # Patrick many moons ago...).
942 } else { # -Ofile, then...
944 &add_Hsc_flags( @HsC_minusO3_flags );
945 push(@HsC_flags, $Oopt_FinalStgProfilingMassage) if $Oopt_FinalStgProfilingMassage;
947 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
950 } # setupOptimiseFlags
954 %************************************************************************
956 \subsection{Check for consistency, etc.}
958 %************************************************************************
960 Sort out @$BuildTag@, @$PROFing@, @$CONCURing@, @$PARing@,
961 @$GRANing@, @$TICKYing@:
963 sub setupBuildFlags {
966 # PROFILING stuff after argv mangling:
968 # warn about any scc exprs found (in case scc used as identifier)
969 push(@HsP_flags, '-W');
971 # add -auto sccs even if not profiling !
972 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
975 push(@HsC_flags, $PROFauto) if $PROFauto;
976 push(@HsC_flags, $PROFcaf) if $PROFcaf;
977 #push(@HsC_flags, $PROFdict) if $PROFdict;
979 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
981 push(@HsP_flags, (($PROFignore_scc) ? $PROFignore_scc : '-S'));
983 if ( $SplitObjFiles ) {
984 # can't split with cost centres -- would need global and externs
985 print STDERR "$Pgm: WARNING: splitting objects when profiling will *BREAK* if any _scc_s are present!\n";
986 # (but it's fine if there aren't any _scc_s around...)
987 # $SplitObjFiles = 0; # unset
988 #not an error: for now: $Status++;
991 #if ( $BuildTag ne '' ) {
992 # local($b) = $BuildDescr{$BuildTag};
993 # if ($CONCURing eq 'c') { print STDERR "$Pgm: Can't mix $b with -concurrent.\n"; exit 1; }
994 # if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
995 # if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
996 # if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
998 # # ok to have a user-way profiling build
999 # # eval the profiling opts ... but leave user-way BuildTag
1000 # if ($PROFing eq 'p') { &processArgs(split(' ', $SetupOpts{'_p'})); } # eval($EvaldSetupOpts{'_p'}); }
1002 if ( $PROFing eq 'p' ) {
1003 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
1004 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
1005 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
1006 $BuildTag = ($CONCURing eq 'c') ? '_mr' : '_p' ; # possibly "profiled concurrent"...
1008 } elsif ( $CONCURing eq 'c' ) {
1009 if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix -concurrent with -parallel.\n"; exit 1; }
1010 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -concurrent with -gransim.\n"; exit 1; }
1011 $BuildTag = ($TICKYing eq 't') ? '_mt' : '_mc' ; # possibly "ticky concurrent"...
1012 # "profiled concurrent" already acct'd for...
1014 } elsif ( $PARing eq 'p' ) {
1015 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
1016 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
1019 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
1020 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
1024 } elsif ( $GRANing eq 'g' ) {
1025 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
1028 } elsif ( $TICKYing eq 't' ) {
1034 After the sanity checks, add flags to the necessary parts of the driver pipeline:
1037 if ( $BuildTag ne '' ) { # something other than normal sequential...
1039 local($Tag) = "${BuildTag}";
1040 $Tag =~ s/_//; # move the underscore to the back
1042 $HscOut = '-C='; # must go via C
1043 &processArgs(split(' ', $SetupOpts{$BuildTag}));
1044 # eval($EvaldSetupOpts{$BuildTag});
1048 Decide what the consistency-checking options are in force for this run:
1051 $HsC_consist_options = "${BuildTag},${DEBUGging}";
1052 $Cc_consist_options = "${BuildTag},${DEBUGging}";
1055 # Funny place to put it, but why not.
1057 if ( $HiSuffix_prelude eq '' ) {
1058 local($Tag) = "${BuildTag}";
1060 $Tag = "${Tag}_" if $Tag ne '';
1061 $HiSuffix_prelude="${Tag}hi";
1063 #push(@HsC_flags, "-hisuf-prelude=.${HiSuffix_prelude}"); # use appropriate Prelude .hi files
1064 #push(@HsC_flags, "-hisuf=.${HiSuffix}");
1069 %************************************************************************
1071 \subsection{Add on machine-specific C-compiler flags}
1073 %************************************************************************
1075 Shove on magical machine-specific options. We use \tr{unshift} to
1076 stick them on the {\em front} of the arrays, so that ``later''
1077 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
1079 Note: a few ``always apply'' flags were set at the very beginning.
1084 if ($TargetPlatform =~ /^alpha-/) {
1085 # we know how to *mangle* asm for alpha
1086 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1087 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1088 unshift(@CcBoth_flags, ('-static'));
1090 } elsif ($TargetPlatform =~ /^hppa/) {
1091 # we know how to *mangle* asm for hppa
1092 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1093 unshift(@CcBoth_flags, ('-static'));
1095 # We don't put in '-mlong-calls', because it's only
1096 # needed for very big modules (sigh), and we don't want
1097 # to hobble ourselves further on all the other modules
1100 # [Dated comment (gcc-2.6.x?), -mlong-calls is no longer
1101 # a supported gcc HPPA flag]
1102 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
1103 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
1104 # (very nice, but too bad the HP /usr/include files don't agree.)
1106 } elsif ($TargetPlatform =~ /^i386-/) {
1107 # we know how to *mangle* asm for X86
1108 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1109 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK && $TargetPlatform !~ /nextstep/;
1110 # I do not know how to do STACK_CHECK_BY_PAGE_FAULT
1111 # on NeXTs (my fault, not theirs), so I don't.
1114 # -fno-defer-pop : basically the same game as for m68k
1116 # -fomit-frame-pointer : *must* ; because we're stealing
1117 # the fp (%ebp) for our register maps. *All* register
1118 # maps (in MachRegs.lh) must steal it.
1120 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1121 unshift(@CcRegd_flags, '-fomit-frame-pointer');
1122 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1124 } elsif ($TargetPlatform =~ /^m68k-/) {
1125 # we know how to *mangle* asm for m68k
1126 unshift (@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1127 unshift (@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK && $TargetPlatform !~ /nextstep/;
1128 # I do not know how to do STACK_CHECK_BY_PAGE_FAULT
1129 # on NeXTs (my fault, not theirs), so I don't.
1132 # -fno-defer-pop : for the .hc files, we want all the pushing/
1133 # popping of args to routines to be explicit; if we let things
1134 # be deferred 'til after an STGJUMP, imminent death is certain!
1136 # -fomit-frame-pointer : *don't*
1137 # It's better to have a6 completely tied up being a frame pointer
1138 # rather than let GCC pick random things to do with it.
1139 # (If we want to steal a6, then we would try to do things
1140 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1142 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1143 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1144 # maybe gives reg alloc a better time
1145 # also: -fno-defer-pop is not sufficiently well-behaved without it
1147 } elsif ($TargetPlatform =~ /^mips-/) {
1148 # we (hope to) know how to *mangle* asm for MIPSen
1149 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1150 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1151 unshift(@CcBoth_flags, ('-static'));
1153 } elsif ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1154 # we know how to *mangle* asm for PowerPC
1155 # :-( unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1156 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1157 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1158 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1159 } elsif ($TargetPlatform =~ /^sparc-/) {
1160 # we know how to *mangle* asm for SPARC
1161 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1162 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1165 } # end of setupMachOpts
1168 %************************************************************************
1170 \subsection{Set up for warnings}
1172 %************************************************************************
1174 Several warnings are turned on by default. These are supposed to be
1175 the 'I'm pretty sure you've made a mistake here' kind of warnings.
1176 The rest are turned on by the -W and -Wall options, or individually
1177 via their -fwarn and -fno-warn flags.
1180 sub setupWarningFlags {
1181 &add_Hsc_flags( @StandardWarnings );
1185 Same unshifting magic, but for special linker flags.
1187 The configure script determines whether the object file symbol tables
1188 have a leading underscore, and sets @LeadingUnderscore@ accordingly.
1189 (The driver script `sees' the setting of the @LeadingUnderscore@
1190 by having the Makefile prepend it).
1194 local($uscore) = ( ${LeadingUnderscore} eq 'YES' ) ? '_' : '';
1197 (($Ld_main) ? ( '-u', "${uscore}Main_" . $Ld_main . '_closure' ) : ()));
1199 ( '-u', "${uscore}PrelBase_Z91Z93_closure" # i.e., []
1200 ,'-u', "${uscore}PrelBase_IZh_static_info"
1201 ,'-u', "${uscore}PrelBase_CZh_static_info"
1202 ,'-u', "${uscore}PrelBase_False_inregs_info"
1203 ,'-u', "${uscore}PrelBase_True_inregs_info"
1204 ,'-u', "${uscore}DEBUG_REGS"
1206 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1207 # sometimes we have lots of toc entries...
1208 # unshift(@Ld_flags, ('-Xlinker -bbigtoc -Xlinker -bnoquiet'));
1209 unshift(@Ld_flags, ('-Xlinker -bbigtoc'));
1212 } # end of setupLinkOpts
1216 %************************************************************************
1218 \subsection{Set up include paths and system-library enslurpment}
1220 %************************************************************************
1222 Now that we know what garbage-collector, etc., are required, we can
1223 finalise our list of libraries to slurp through, and generally Get
1228 # default includes must be added AFTER option processing
1229 if ( ! $INSTALLING ) {
1230 push (@Include_dir, "$TopPwd/${CURRENT_DIR}/${GHC_INCLUDE_DIR}");
1232 push (@Include_dir, "$InstLibDirGhc/includes");
1233 push (@Include_dir, "$InstLibDirGhc/includes");
1235 } # end of setupIncPaths
1240 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1243 foreach $f (@SysLibrary) {
1244 next if $f =~ /_cbits/;
1245 $f .= $BuildTag if $f =~ /^-lHS/;
1248 # fiddle the TopClosure file name...
1249 $TopClosureFile =~ s/XXXX//;
1251 # Push library HSrts, plus boring clib bit
1252 push(@SysLibrary, "-lHSrts${BuildTag}");
1253 push(@SysLibrary, '-lHSclib');
1255 # RTS compiled with cygwin32, uses the WinMM API
1256 # to implement the itimers, since cygwin.dll does not
1257 # support it. Only reqd. for `ways' that use itimers.
1259 push(@SysLibrary, '-lwinmm') if $BuildTag ne '' && $TargetPlatform eq 'i386-unknown-cygwin32';
1261 # Push the pvm libraries
1262 if ($BuildTag eq '_mp') {
1263 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1264 push(@SysLibrary, "-L$pvmlib", '-lpvm3', '-lgpvm3');
1265 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1266 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1267 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1268 push(@SysLibrary, '-lsocket', '-lnsl');
1272 # Push the GNU multi-precision arith lib; and the math library
1273 push(@SysLibrary, '-lgmp');
1274 push(@SysLibrary, '-lm');
1277 %************************************************************************
1279 \subsection{Check that this system was built to do what we are asking}
1281 %************************************************************************
1283 Before continuing we check that the appropriate build is available.
1286 #die "$Pgm: no BuildAvail?? $BuildTag\n" if $BuildDescr{$BuildTag} eq '' ; # sanity
1288 if ( $BuildDescr{$BuildTag} eq '' ) {
1289 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1290 "' \"build\" is not available with your GHC setup.\n";
1291 print STDERR "(It was not configured for it at your site.)\n";
1292 print STDERR $ShortUsage;
1296 } # end of setupSyslibs
1300 %************************************************************************
1302 \subsection{Final miscellaneous setup bits before we start going}
1304 %************************************************************************
1306 Record largest specific heapsize, if any.
1308 sub setupHeapStackSize {
1309 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1310 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1311 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1312 push(@HsC_rts_flags, "-K$Specific_stk_size");
1316 If no input or link files seen, then we let 'em feed in stdin; this is
1317 mainly for debugging.
1321 if ($#Input_file < 0 && $#Link_file < 0) {
1322 @Input_file = ( '-' );
1324 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1325 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n" if -t;
1326 while (<STDIN>) { print INF $_; }
1327 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1332 Tell the world who we are, if they asked.
1334 print STDERR "${PROJECTNAME}, version ${PROJECTVERSION}, patchlevel ${PROJECTPATCHLEVEL}\n"
1338 %************************************************************************
1340 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1342 %************************************************************************
1344 Process the input files; don't continue with linking if there are
1345 problems (global variable @$Status@ non-zero).
1347 foreach $ifile (@Input_file) {
1348 &ProcessInputFile($ifile);
1351 if ( $Status > 0 ) { # don't link if there were errors...
1352 print STDERR $ShortUsage;
1357 # append last minute flags linker and consistency flags
1364 Link if appropriate.
1367 local($libdirs) = '';
1369 # glue them together:
1370 push(@UserLibrary_dir, @SysLibrary_dir);
1372 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1374 # for a linker, use an explicitly given one, or the going C compiler ...
1375 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1377 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1378 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1380 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $TopClosureFile $libdirs @UserLibrary @SysLibrary";
1381 &run_something($to_do, 'Linker');
1383 # finally, check the consistency info in the binary
1384 local($executable) = $Files_to_tidy[0];
1385 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1388 # dynamically load consistency-chking code; then do it.
1389 require('ghc-consist.prl')
1390 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1392 &chk_consistency_info ( $executable );
1395 # if PVM parallel stuff, we do truly weird things.
1396 # Essentially: (1) move the executable over to where PVM expects
1397 # to find it. (2) create a script in place of the executable
1398 # which will cause the program to be run, via SysMan.
1399 if ( $PARing eq 'p' ) {
1400 local($pvm_executable) = $executable;
1401 local($pvm_executable_base);
1403 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1404 local($pwd) = `pwd`;
1406 $pwd =~ s/^\/tmp_mnt//;
1407 $pvm_executable = "$pwd/$pvm_executable";
1410 $pvm_executable =~ s|/|=|g; # make /s into =s
1411 $pvm_executable_base = $pvm_executable;
1413 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1414 . "/$pvm_executable";
1416 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1418 # OK, now create the magic script for "$executable"
1419 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1420 print EXEC <<EOSCRIPT1;
1421 eval 'exec perl -S \$0 \${1+"\$@"}'
1422 if \$running_under_some_shell;
1423 # =!=!=!=!=!=!=!=!=!=!=!
1424 # This script is automatically generated: DO NOT EDIT!!!
1425 # Generated by Glasgow Haskell, version ${PROJECTVERSION} ${PROJECTPATCHLEVEL}
1427 \$pvm_executable = '$pvm_executable';
1428 \$pvm_executable_base = '$pvm_executable_base';
1429 \$SysMan = '$SysMan';
1432 print EXEC <<\EOSCRIPT2;
1433 # first, some magical shortcuts to run "commands" on the binary
1435 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1437 system("$cmd $pvm_executable");
1441 # OK, really run it; process the args first
1442 $ENV{'PE'} = $pvm_executable_base;
1444 $nprocessors = 2; # the default
1448 # ToDo: handle --RTS
1449 args: while ($a = shift(@ARGV)) {
1450 if ( $a eq '+RTS' ) {
1452 } elsif ( $a eq '-RTS' ) {
1455 if ( $a eq '-d' && $in_RTS_args ) {
1457 } elsif ( $a =~ /^-N(\d+)/ && $in_RTS_args ) {
1460 push(@nonPVM_args, $a);
1464 local($return_val) = 0;
1465 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
1467 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
1470 close(EXEC) || die "Failed closing $executable\n";
1471 chmod 0755, $executable;
1475 # that... that's all, folks!
1477 exit $Status; # will still be 0 if all went well
1480 %************************************************************************
1482 \section[Driver-do-one-file]{How to process a single input file}
1484 %************************************************************************
1487 sub ProcessInputFile {
1488 local($ifile) = @_; # input file name
1489 local($ifile_root); # root of or basename of input file
1490 local($ofile_target); # ultimate output file we hope to produce
1491 # from input file (need to know for recomp
1492 # checking purposes)
1493 local($hifile_target);# ditto (but .hi file)
1496 Handle the weirdity of input from stdin.
1498 if ($ifile ne '-') {
1499 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1500 $ofile_target = # may be reset later...
1501 ($Specific_output_file ne '' && ! $Do_lnkr)
1502 ? $Specific_output_file
1503 : &odir_ify($ifile_root, 'o');
1504 $hifile_target= ($Specific_hi_file ne '')
1506 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1507 # NB: may change if $ifile_root isn't module name (??)
1509 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1510 $ifile_root = '_stdin';
1511 $ofile_target = '_stdout'; # gratuitous?
1512 $hifile_target= '_stdout'; # ditto?
1516 We need to decide what phases of the compilation system we will run
1517 over this file. The defaults are the ones established when processing
1518 flags. (That established what the last phase run for all files is.)
1520 We do the pre-recompilation-checker phases here; the rest later.
1524 Look at the suffix and decide what initial phases of compilation may
1525 be dropped off for this file. Also the rather boring business of
1526 which files are coming-in/going-out.
1528 Again, we'll do the post-recompilation-checker parts of this later.
1530 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1531 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1534 # names of the files to stuff between phases
1535 # defaults are temporaries
1536 local($in_lit2pgm) = $ifile;
1537 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1538 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1539 local($hsc_hi) = "$Tmp_prefix.hi";
1540 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1541 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1542 local($as_out) = $ofile_target;
1544 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
1546 # OK, let's strip off some literate junk..
1548 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
1550 $lit2pgm_hscpp = $ifile;
1556 # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas
1557 &check_for_source_options($lit2pgm_hscpp,$ifile);
1559 # Options found in the source file take a back seat, i.e., we scan
1560 # them first. Only process the command line again if source file
1561 # contained anything of interest *or* there's more than one
1562 # input file (we have to reset the options).
1564 if ( $#Input_file >= 0 || $#File_options >= 0) {
1565 #@File_options = (@File_options, @Cmd_opts);
1567 # Now process the command line
1568 &initDriverGlobals();
1569 &processArgs((@File_options,@Cmd_opts));
1570 print STDERR "\nEffective command line: " .
1571 join(' ',(@File_options,@Cmd_opts)) . "\n" if $Verbose;
1574 # Having got the effective command line scanned, set up
1575 # the various options in prep for some real work.
1577 # check the sanity of the BuildTag we're about to use,
1578 # and if needs be, add some more flags and setup to
1579 # the different phases.
1582 &setupOptimiseFlags();
1585 &setupWarningFlags();
1586 &setupHeapStackSize();
1589 # These two variables need to be set after the
1590 # command-line has been processed and the build options
1591 # have be seen set up. This is because command-line options
1592 # can control whether to compile vias C or not.
1594 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1596 : ( ($HscOut eq '-C=') ? 1 : 0 );
1597 local($do_as) = $Do_as;
1598 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1600 if ($Only_preprocess_hc) { # stop after having run $Cc -E
1603 if ($Only_preprocess_C) { # stop after having run $hscpp
1604 $do_hsc=0; $do_cc = 0; $do_as=0;
1605 } elsif ($ifile =~ /.lhs$/ || $ifile =~ /.hs$/ ) {
1607 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
1608 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1610 } elsif ($ifile =~ /\.c$/) {
1611 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1612 $hsc_out = $ifile; $is_hc_file = 0;
1613 } elsif ($ifile =~ /\.s$/) {
1614 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
1616 } else { # don't know what it is, but nothing to do herein...
1617 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
1620 # hack to avoid running hscpp
1621 $HsCpp = $Cat if ! $Cpp_flag_set;
1623 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) if $do_hscpp;
1627 We now think about whether to run hsc/cc or not (when hsc produces .s
1628 stuff, it effectively takes the place of both phases).
1630 To get the output file name right: for each phase that we are {\em
1631 not} going to run, set its input (i.e., the output of its preceding
1632 phase) to @"$ifile_root.<suffix>"@.
1635 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
1638 # Warning issued if -keep-hc-file-too is used without
1639 # -fvia-C (or the equivalent)
1641 if ( $HscOut ne '-C=' && $Keep_hc_file_too ) {
1642 print STDERR "$Pgm: warning: Native code generator to be used, -keep-hc-file-too will be ignored\n";
1645 if (! $do_cc && ! $do_as) { # stopping after hsc
1646 $hsc_out = ($Specific_output_file ne '')
1647 ? $Specific_output_file
1648 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
1650 $ofile_target = $hsc_out; # reset
1653 if (! $do_as) { # stopping after gcc (or hsc)
1654 $cc_as = ($Specific_output_file ne '')
1655 ? $Specific_output_file
1656 : &odir_ify($ifile_root, ( $Only_preprocess_hc ) ? 'i' : 's');
1658 $ofile_target = $cc_as; # reset
1664 Now the Haskell compiler, C compiler, and assembler
1668 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
1669 $ofile_target, $hifile_target);
1673 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
1674 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root) if ! $Only_preprocess_hc;
1677 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
1679 # save a copy of the .s file..
1680 &saveIntermediate($ifile_root , "s" , $cc_as) if ($do_as && $Keep_s_file_too);
1681 &runAs($as_out, $ifile_root) if $do_as;
1684 Finally, decide what to queue up for linker input.
1686 # tentatively assume we will eventually produce linker input:
1687 push(@Link_file, &odir_ify($ifile_root, 'o'));
1689 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
1691 if ( $ifile !~ /\.(lhs|hs|hc|c|s)$/ && $ifile !~ /_hc$/ ) {
1692 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n"
1693 if $ifile !~ /\.a$/;
1695 # oops; we tentatively pushed the wrong thing; fix & do the right thing
1696 pop(@Link_file); push(@Link_file, $ifile);
1700 } # end of ProcessInputFile
1703 %************************************************************************
1705 \section[Driver-run-phases]{Routines to run the various phases}
1707 %************************************************************************
1711 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
1715 # Only add #line pragma if we're going to need it.
1716 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && " if ($Cpp_flag_set);
1717 $to_do .= "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
1719 push(@Files_to_tidy, $lit2pgm_hscpp );
1721 &run_something($to_do, 'literate pre-processor');
1727 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
1731 # Strictly speaking, echoing of the following line pragma is only required
1732 # on non-delit'ed input, as we've already added it during de-lit. However,
1733 # hscpp will then add a {-# LINE 1 "$lit2pgm_hsc" -} to the top of the file,
1734 # which is not very informative (but harmless). Hence, we uniformly have
1735 # {-# LINE 1 "$in_lit2pgm" #-} as the first line to all cpp'ed hsc input.
1737 $to_do = "echo '{-# LINE 1 \"$in_lit2pgm\" -}' > $hscpp_hsc && ";
1739 if ($HsCpp eq $Cat) {
1740 $to_do .= "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
1741 push(@Files_to_tidy, $hscpp_hsc );
1742 &run_something($to_do, 'Ineffective C pre-processor');
1744 local($includes) = '-I' . join(' -I',@Include_dir);
1745 $to_do .= "$HsCpp $Verbose $genSPECS_flag @HsCpp_flags -D__HASKELL1__=$Haskell1Version -D__GLASGOW_HASKELL__=$GhcVersionInfo $includes $lit2pgm_hscpp >> $hscpp_hsc";
1746 push(@Files_to_tidy, $hscpp_hsc );
1747 &run_something($to_do, 'Haskellised C pre-processor');
1750 if ( $Only_preprocess_C ) {
1751 $to_do = "$Cat $hscpp_hsc";
1752 &run_something($to_do, '');
1760 sub runHscAndProcessInterfaces {
1761 local($ifile, $hscpp_hsc, $ifile_root, $ofile_target, $hifile_target) = @_;
1763 # $ifile is the original input file
1764 # $hscpp_hsc post-unlit, post-cpp, etc., input file
1765 # $ifile_root input filename minus suffix
1766 # $ofile_target the output file that we ultimately hope to produce
1767 # $hifile_target the .hi file ... (ditto)
1769 local($source_unchanged) = 1;
1771 # Check if the source file is up to date relative to the target; in
1772 # that case we say "source is unchanged" and let the compiler bail out
1773 # early if the import usage information allows it.
1775 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
1776 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
1778 # The informational messages below are now conditional on -v being set -- SOF
1779 if ( $ofile_target ne "_stdin.s" && ! -f $ofile_target ) {
1780 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n" if $Verbose;
1781 $source_unchanged = 0;
1784 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
1785 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
1787 if ( $hifile_target ne "_stdout" && ! -f $hifile_target ) {
1788 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n" if $Verbose;
1789 $source_unchanged = 0;
1792 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
1793 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
1795 if ( $ofile_target ne "_stdin.s" && $i_mtime > $o_mtime) {
1796 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n" if $Verbose;
1797 $source_unchanged = 0;
1800 # So if source_unchanged is still "1", we pass on the good news to the compiler
1801 # The -recomp flag can disable this, forcing recompilation
1802 if ($Do_recomp_chkr && $source_unchanged) {
1803 push(@HsC_flags, '-fsource-unchanged');
1808 &runHsc($ifile_root, $hsc_out, $hsc_hi, $going_interactive);
1810 # See if it bailed out early, saying nothing needed doing.
1811 # We work this out by seeing if it created an output .hi file
1813 if ( ! -f $hsc_hi && $ProduceHi !~ /-nohifile=/ ) {
1814 # Doesn't exist, so we bailed out early.
1815 # Tell the C compiler and assembler not to run
1816 $do_cc = 0; $do_as = 0;
1818 # Update dependency info, touch both object file and
1819 # interface file, so that the following invariant is
1822 # a dependent module's interface file should after recompilation
1823 # checking be newer than the interface files of its imports.
1825 # That is, if module A's interface file changes, then module B
1826 # (which import from A) needs to be checked.
1827 # If A's change does not affect B, which causes the compiler to bail
1828 # out early, we still need to touch the interface file of B. The reason
1829 # for this is that B may export A's interface.
1831 &run_something("touch $ofile_target",
1832 "Touch $ofile_target, to propagate dependencies") if $HscOut ne '-N=';
1833 &run_something("touch $hifile_target",
1834 "Touch $hifile_target, to propagate dependencies") if $ProduceHi =~ /-nohifile=/ ;
1838 # Didn't bail out early (new .hi file) so we thunder on
1840 # If non-interactive, heave in the consistency info at the end
1841 # NB: pretty hackish (depends on how $output is set)
1842 if ( ! $going_interactive ) {
1843 if ( $HscOut eq '-C=' ) {
1844 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
1846 } elsif ( $HscOut eq '-S=' ) {
1847 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
1848 $consist =~ s/,/./g;
1849 $consist =~ s/\//./g;
1850 $consist =~ s/-/_/g;
1851 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
1852 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
1854 &run_something($to_do, 'Pin on Haskell consistency info');
1858 # Interface-handling is important enough to live off by itself
1859 if ( $ProduceHi !~ /-nohifile=/ ) { # If we've produced one, process it.
1860 require('ghc-iface.prl') || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
1861 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
1863 # if we're going to split up object files,
1864 # we inject split markers into the .hc file now
1865 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
1866 &inject_split_markers ( $hsc_out );
1869 # save a copy of the .hc file, even if we are carrying on...
1870 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
1871 &saveIntermediate($ifile_root , "hc" , $hsc_out);
1881 local($ifile_root, $hsc_out, $hsc_hi, $going_interactive) = @_;
1883 # prepend comma to HsP flags (so hsc can tell them apart...)
1884 foreach $a ( @HsP_flags ) { $a = ",$a" unless $a =~ /^,/; }
1886 &makeHiMap() unless $HiMapDone;
1887 #print STDERR "HiIncludes: $HiIncludeString\n";
1888 push(@HsC_flags, "-himap=$HiIncludeString");
1890 # here, we may produce .hc/.s and/or .hi files
1891 local($output) = '';
1892 #@Files_to_tidy = ();
1894 if ( $going_interactive ) {
1895 # don't need .hi unless going to show it on stdout:
1896 $ProduceHi = '-nohifile=' if ! $HiOnStdout;
1897 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
1900 # set up for producing output/.hi; note that flag twiddling
1901 # may mean that nothing will actually be produced:
1902 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out";
1903 push(@Files_to_tidy, $hsc_hi, $hsc_out );
1905 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
1906 if ( $CollectingGCstats ) {
1907 push(@HsC_rts_flags, "-S$ifile_root.stat");
1908 push(@Files_to_tidy, "$ifile_root.stat");
1911 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
1912 # emit nofibbish time/bytes-alloc stats to stderr;
1913 # see later .stat file post-processing
1914 print STDERR "warning: both -Rgc-stats and -Rghc-timing used, -Rghc-timing wins." if $CollectingGCstats;
1915 push(@HsC_rts_flags, "-s$Tmp_prefix.stat");
1916 push(@Files_to_tidy, "$Tmp_prefix.stat");
1920 if ($Specific_dump_file ne '') {
1921 $dump = "2>> $Specific_dump_file";
1922 $Using_dump_file = 1;
1926 $to_do = "$HsC @HsP_flags ,$hscpp_hsc $dump @HsC_flags $CoreLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
1927 &run_something($to_do, 'Haskell compiler');
1929 # finish business w/ nofibbish time/bytes-alloc stats
1930 &process_ghc_timings() if $CollectGhcTimings;
1934 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
1935 of (module-name, pathname) pairs, one per line, separated by a space.
1938 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1942 # collect in %HiMap; write later; also used elsewhere in driver
1944 local($mod, $path, $d, $e);
1946 # reset the global variables:
1948 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1950 foreach $d ( @Import_dir ) {
1951 if ($HiIncludeString) {
1952 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix}";
1954 $HiIncludeString = "$d%.${HiSuffix}";
1959 foreach $d ( @SysImport_dir ) {
1960 if ($HiIncludeString) {
1961 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix_prelude}";
1963 $HiIncludeString = "${d}%.${HiSuffix_prelude}";
1972 %************************************************************************
1974 \section[Driver-misc-utils]{Miscellaneous utilities}
1976 %************************************************************************
1978 %************************************************************************
1980 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
1982 %************************************************************************
1986 local($ofile,$def_suffix) = @_;
1988 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
1992 local($orig_file, $def_suffix) = @_;
1993 if ($Specific_output_dir eq '') { # do nothing
1994 &osuf_ify($orig_file, $def_suffix);
1996 local ($orig_file_only);
1997 ($orig_file_only = $orig_file) =~ s|.*/||;
1998 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
2005 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
2007 local($includes) = '-I' . join(' -I', @Include_dir);
2010 local($c_flags) = "@CcBoth_flags";
2011 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2013 # "input" files to use that are not in some weird directory;
2014 # to help C compilers grok .hc files [ToDo: de-hackify]
2015 local($cc_help) = "ghc$$.c";
2016 local($cc_help_s) = "ghc$$.s";
2019 $s_output = ($is_hc_file || $TargetPlatform =~ /^(powerpc|rs6000|hppa|i386)/) ? $cc_as_o : $cc_as;
2020 $c_flags .= " @CcRegd_flags";
2021 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2023 # C compiler won't like the .hc extension. So we create
2024 # a tmp .c file which #include's the needful.
2025 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2026 if ( $is_hc_file ) {
2028 #ifdef __STG_GCC_REGS__
2029 # if ! (defined(MAIN_REG_MAP) || defined(MARK_REG_MAP) || defined(SCAN_REG_MAP) || defined(SCAV_REG_MAP) || defined(FLUSH_REG_MAP))
2030 # define MAIN_REG_MAP
2033 #include "stgdefs.h"
2035 # user may have asked for #includes to be injected...
2036 print TMP @CcInjects if $#CcInjects >= 0;
2038 # heave in the consistency info
2039 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2041 # and #include the real source
2042 print TMP "#include \"$hsc_out\"\n";
2043 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2045 # Don't redirect stderr into intermediate file if slamming output onto stdout (e.g., with -E)
2046 local($fuse_stderr) = "2>&1" if ! $Only_preprocess_hc;
2047 local($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 )";
2048 # note: __GLASGOW_HASKELL__ is pointedly *not* #defined at the C level.
2050 if ( $Only_preprocess_hc ) { # HACK ALERT!
2051 $to_do =~ s/ -S\b//g;
2053 push(@Files_to_tidy, $cc_help, $cc_help_s, $s_output );
2054 $PostprocessCcOutput = 1 if ! $Only_preprocess_hc; # hack, dear hack...
2055 &run_something($to_do, 'C compiler');
2056 $PostprocessCcOutput = 0;
2057 if ( $Only_preprocess_hc ) {
2058 system("$Cat $Tmp_prefix.ccout");
2060 unlink($cc_help, $cc_help_s);
2066 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2068 if ( $is_hc_file ) {
2069 # dynamically load assembler-fiddling code, which we are about to use:
2070 require('ghc-asm.prl')
2071 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2074 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2077 # post-process the assembler [.hc files only]
2078 &mangle_asm($cc_as_o, $cc_as);
2082 #OLD: local($target) = 'oops';
2083 #OLD: $target = '-alpha' if $TargetPlatform =~ /^alpha-/;
2084 #OLD: $target = '-hppa' if $TargetPlatform =~ /^hppa/;
2085 #OLD: $target = '-old-asm' if $TargetPlatform =~ /^i386-/;
2086 #OLD: $target = '-m68k' if $TargetPlatform =~ /^m68k-/;
2087 #OLD: $target = '-mips' if $TargetPlatform =~ /^mips-/;
2088 #OLD: $target = '' if $TargetPlatform =~ /^powerpc-/;
2089 #OLD: $target = '-solaris' if $TargetPlatform =~ /^sparc-sun-solaris2/;
2090 #OLD: $target = '-sparc' if $TargetPlatform =~ /^sparc-sun-sunos4/;
2092 #OLD: if ( $target ne '' ) {
2093 #OLD: require("ghc-asm$target.prl")
2094 #OLD: || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm$target.prl!\n");
2095 #OLD: &mangle_asm($cc_as_o, "$cc_as-2"); # the OLD one!
2096 #OLD: &run_something("$Cmp -s $cc_as-2 $cc_as || $Diff $cc_as-2 $cc_as 1>&2 || exit 0",
2097 #OLD: "Diff'ing old and new mangled .s files"); # NB: to stderr
2100 } elsif ($TargetPlatform =~ /^hppa/) {
2101 # minor mangling of non-threaded files for hp-pa only
2102 require('ghc-asm.prl')
2103 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2104 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2106 } elsif ($TargetPlatform =~ /^powerpc|^rs6000/) {
2107 # minor mangling of non-threaded files for powerpcs and rs6000s
2108 require('ghc-asm.prl')
2109 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-powerpc.prl!\n");
2110 &mini_mangle_asm_powerpc($cc_as_o, $cc_as);
2111 } elsif ($TargetPlatform =~ /^i386/) {
2112 # extremely-minor OFFENSIVE mangling of non-threaded just one file
2113 require('ghc-asm.prl')
2114 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2115 &mini_mangle_asm_i386($cc_as_o, $cc_as);
2118 # save a copy of the .s file, even if we are carrying on...
2119 #if ($do_as && $Keep_s_file_too) {
2120 # &saveIntermediate($ifile_root , "s" , $cc_as);
2127 local($as_out, $ifile_root) = @_;
2129 local($asmblr) = ( $As ) ? $As : $CcRegd;
2131 if ( ! $SplitObjFiles ) {
2132 local($to_do) = "$asmblr -o $as_out -c @As_flags $cc_as";
2133 push(@Files_to_tidy, $as_out );
2134 &run_something($to_do, 'Unix assembler');
2136 } else { # more complicated split-ification...
2138 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2140 # If -odir is used, great, just pin it in front of the
2141 # generated split file names. If it hasn't been set, we
2142 # snatch it from the ifile_root.
2146 if ( $Specific_output_dir eq '' ) {
2147 $Specific_output_dir = ${ifile_root};
2150 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2151 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2152 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2153 push(@Files_to_tidy, $split_out );
2155 &run_something($to_do, 'Unix assembler');
2161 %************************************************************************
2163 \subsection[Driver-run-something]{@run_something@: Run a phase}
2165 %************************************************************************
2169 local($str_to_do, $tidy_name) = @_;
2171 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2172 print STDERR "$str_to_do\n" if $Verbose;
2174 if ($Using_dump_file) {
2175 open(DUMP, ">> $Specific_dump_file")
2176 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2177 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2179 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2182 local($return_val) = 0;
2184 if ( length($str_to_do) > 4000) {
2185 # 4000 - on the random side, just like the *real* ARG_MAX
2188 # With some shells, command lines of this length may
2189 # very well cause trouble. To safeguard against this, we squirrel the
2190 # command into a file and exec that.
2191 local ($sh) = $ENV{'REAL_SHELL'};
2192 print STDERR "Backup plan A: saving cmd line in ${Tmp_prefix}.sh and executing that with $sh\n" if $Verbose;
2193 open (TEMP, "> ${Tmp_prefix}.sh") ||
2194 &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.sh'\n");
2195 print TEMP "$Time $str_to_do\n";
2197 &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.sh'\n");
2198 system("$sh $Tmp_prefix.sh");
2201 unlink "${Tmp_prefix}.sh";
2203 system("$Time $str_to_do");
2207 if ( $PostprocessCcOutput ) { # hack, continued
2208 open(CCOUT, "< $Tmp_prefix.ccout")
2209 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2211 next if /attribute directive ignored/;
2212 next if /call-clobbered/;
2213 next if /from .*COptRegs\.lh/;
2214 next if /from .*(stg|rts)defs\.h:/;
2215 next if /from ghc\d+.c:\d+:/;
2216 next if /from .*\.lc/;
2217 next if /from .*SMinternal\.l?h/;
2218 next if /ANSI C does not support \`long long\'/;
2219 next if /warning:.*was declared \`extern\' and later \`static\'/;
2220 next if /warning: assignment discards \`const\' from pointer target type/;
2221 next if /: At top level:$/;
2222 next if /: In function \`.*\':$/;
2223 next if /\`ghc_cc_ID\' defined but not used/;
2226 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2229 if ($return_val != 0) {
2230 if ($Using_dump_file) {
2231 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2234 &tidy_up_and_die($return_val, '');
2236 $Using_dump_file = 0;
2240 %************************************************************************
2242 \subsection[Driver-ghc-timing]{Emit nofibbish GHC timings}
2244 %************************************************************************
2246 NB: nearly the same as in @runstdtest@ script.
2249 sub process_ghc_timings {
2250 local($StatsFile) = "$Tmp_prefix.stat";
2251 local($SysSpecificTiming) = 'ghc';
2253 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2254 local($max_live) = 0;
2255 local($tot_live) = 0; # for calculating residency stuff
2256 local($tot_samples) = 0;
2259 if (! /Minor/ && /^\s*\d+\s+\d+\s+(\d+)\s+\d+\.\d+\%/ ) {
2260 $max_live = $1 if $max_live < $1;
2264 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2266 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2267 $MaxResidency = $1; $ResidencySamples = $2;
2270 $GCs = $1 if /^\s*([0-9,]+) garbage collections? performed/;
2272 # The presence of -? in the following pattern is only there to
2273 # accommodate 0.29 && <= 2.05 RTS'
2274 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*-?(\d+\.\d\d)s elapsed\)/ ) {
2275 $InitTime = $1; $InitElapsed = $2;
2276 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2277 $MutTime = $1; $MutElapsed = $2;
2278 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2279 $GcTime = $1; $GcElapsed = $2;
2282 close(STATS) || die "Failed when closing $StatsFile\n";
2283 if ( $tot_samples > 0 ) {
2284 $ResidencySamples = $tot_samples;
2285 $MaxResidency = $max_live;
2286 $AvgResidency = int ($tot_live / $tot_samples) ;
2289 # warn about what we didn't find
2290 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2291 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2292 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2293 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2294 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2295 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2296 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2297 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2299 # things we didn't necessarily expect to find
2300 $MaxResidency = 0 unless defined($MaxResidency);
2301 $AvgResidency = 0 unless defined($AvgResidency);
2302 $ResidencySamples = 0 unless defined($ResidencySamples);
2305 $BytesAlloc =~ s/,//g;
2306 $MaxResidency =~ s/,//g;
2308 $InitTime =~ s/,//g;
2309 $InitElapsed =~ s/,//g;
2311 $MutElapsed =~ s/,//g;
2313 $GcElapsed =~ s/,//g;
2315 # print out what we found
2316 print STDERR "<<$SysSpecificTiming: ",
2317 "$BytesAlloc bytes, $GCs GCs, $AvgResidency/$MaxResidency avg/max bytes residency ($ResidencySamples samples), $InitTime INIT ($InitElapsed elapsed), $MutTime MUT ($MutElapsed elapsed), $GcTime GC ($GcElapsed elapsed)",
2318 " :$SysSpecificTiming>>\n";
2325 %************************************************************************
2327 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2329 %************************************************************************
2333 local($to_do) = "\n$Rm $Tmp_prefix*";
2334 if ( $Tmp_prefix !~ /^\s*$/ ) {
2335 print STDERR "$to_do\n" if $Verbose;
2340 sub tidy_up_and_die {
2341 local($return_val, $msg) = @_;
2343 # delete any files to tidy
2344 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2345 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2349 exit (($return_val == 0) ? 0 : 1);
2353 %************************************************************************
2355 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2357 %************************************************************************
2359 Some command-line arguments take an argument, e.g.,
2360 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2361 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2362 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2364 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2365 gobble the second argument (and probably set the heapsize to something
2369 local(*Args, $option, $rest_of_arg) = @_;
2371 if ($rest_of_arg ne '') {
2372 return($rest_of_arg);
2373 } elsif ($#Args >= 0) {
2374 local($temp) = $Args[0]; shift(@Args);
2377 print STDERR "$Pgm: no argument following $option option\n";
2388 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2390 foreach $f ( @HsC_antiflags ) {
2391 return(0) if $flag eq $f;
2393 # foreach $f ( @HsC_flags ) {
2394 # return(0) if $flag eq $f;
2399 sub squashHscFlag { # pretty terrible
2403 foreach $f ( @HsC_flags ) {
2404 if ($flag eq $f) { $f = ''; }
2412 foreach $f ( @flags ) {
2413 push( @HsC_flags, $f ) if &isntAntiFlag($f);
2418 Source files may have {-# OPTIONS ... #-} pragmas at the top, containing
2419 command line options we want to append to collection of commands specified
2420 directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell
2421 file for any such pragmas:
2424 sub check_for_source_options {
2425 local($file,$ifile) = @_;
2426 local($comment_start,$comment_end);
2428 if ($ifile =~ /\.hc$/ ||
2431 $ifile =~ /_s$/ ) { # `Real' C intermediate
2432 $comment_start = "/\\*";
2433 $comment_end = "\\*/";
2434 } else { # Assume it is a file containing Haskell source
2435 $comment_start = "{-#";
2436 $comment_end = "#-}";
2439 open(FILE,$file) || return(1); # No big loss
2442 if ( /^${comment_start} OPTIONS (.*)${comment_end}$/ ) {
2443 # add the options found at the back of the command line.
2444 local(@entries) = split(/\s+/,$1);
2445 print STDERR "Found OPTIONS " . join(' ',@entries) . " in $file\n" if $Verbose;
2446 push(@File_options, @entries);
2448 elsif ( /^$/ ) { # ignore empty lines
2451 elsif ( /^#line.+$/ ) { # ignore comment lines (unused..ToDo: rm )
2454 elsif ( /^{-# LINE.+$/ ) { # ignore line pragmas
2457 else { # stop looking, something non-empty / not
2458 # ${comment_start} OPTIONS .. ${comment_end} encountered.
2459 close(FILE);return(0);
2468 We split the initial argv up into three arrays:
2474 the reason for doing so is to be able to deal
2475 with {-# OPTIONS #-} pragma in source files properly.
2481 arg: while($_ = $args[0]) {
2483 # sigh, we have to deal with these -option arg specially here.
2484 /^-(tmpdir|odir|ohi|o|isuf|osuf|hisuf|hisuf-prelude|odump|syslib)$/ &&
2485 do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; };
2486 /^--?./ && do { push(@Cmd_opts, $_); next arg; };
2488 if (/\.([^_]+_)?[oa]$/) {
2489 push(@Link_file, $_);
2491 push(@Input_file, $_);
2494 # input files must exist:
2496 print STDERR "$Pgm: input file doesn't exist: $_\n";
2504 When saving an intermediate file (.hc or .s) away, we
2505 have to prefix any OPTIONS found in the original source file.
2508 sub saveIntermediate {
2509 local ($final,$suffix,$tmp)= @_ ;
2512 # $final -- root of where to park ${final}.${suffix}
2513 # $tmp -- temporary file where hsc put the intermediate file.
2515 # Delete the old file
2516 $to_do = "$Rm ${final}.${suffix}"; &run_something($to_do, "Removing old .${suffix} file");
2518 if ( $#File_options >= 0 ) { # OPTIONS found in Haskell source unit
2519 # Add OPTION comment to the top of the generated .${suffix} file
2520 open(TEMP, "> ${final}.${suffix}") || &tidy_up_and_die(1,"Can't open ${final}.${suffix}\n");
2521 print TEMP "/* OPTIONS " . join(' ',@File_options) . " */\n";
2523 print STDERR "Prepending OPTIONS: " . join(' ',@File_options) . " to ${final}.${suffix}\n" if $Verbose;
2525 $to_do = "$Cat $tmp >> ${final}.${suffix}";
2526 &run_something($to_do, "Saving copy of .${suffix} file");
2533 Command-line processor
2539 # can't use getopt(s); what we want is too complicated
2541 arg: while($_ = $Args[0]) {
2544 #---------- help -------------------------------------------------------
2545 if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; }
2547 #-----------version ----------------------------------------------------
2548 /^--version$/ && do { print STDERR "${PROJECTNAME}, version ${PROJECTVERSION}, patchlevel ${PROJECTPATCHLEVEL}\n"; exit $Status; };
2550 #---------- verbosity and such -----------------------------------------
2551 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
2553 #---------- what phases are to be run ----------------------------------
2554 /^-(no-)?recomp/ && do { $Do_recomp_chkr = ($1 eq '') ? 1 : 0; next arg; };
2556 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
2557 # change the global default:
2558 # we won't run cat; we'll run the real thing
2560 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
2562 # stop after generating C
2564 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
2565 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
2567 # leave out actual C generation (debugging) [also turns off interface gen]
2569 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
2570 # _do_ generate an interface; usually used as: -noC -hi
2572 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
2573 # don't generate an interface (even if generating C)
2575 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
2576 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
2577 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
2578 /^-keep-hi-diffs$/ && do { $Keep_HiDiffs = 1; next arg; };
2580 # show/disable diffs if the interface file changes
2582 /^-E$/ && do { push(@CcBoth_flags, '-E');
2583 $Only_preprocess_C = 1;
2584 $Do_as = 0; $Do_lnkr = 0; next arg; };
2585 # stop after preprocessing C
2586 /^-M$/ && do { $Only_generate_deps = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2587 # only generate dependency information.
2588 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
2589 # stop after generating assembler
2591 /^-c$/ && do { $Do_lnkr = 0; next arg; };
2592 # stop after generating .o files
2594 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
2595 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
2596 # don't do consistency-checking after a link
2598 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', '');
2599 $Tmp_prefix = "$Tmp_prefix/ghc$$";
2600 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
2602 # use an alternate directory for temp files
2604 #---------- redirect output --------------------------------------------
2606 # -o <file>; applies to the last phase, whatever it is
2607 # "-o -" sends it to stdout
2608 # if <file> has a directory component, that dir must already exist
2610 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', '');
2612 # Hack, of the worst sort: don't do validation of
2613 # odir argument if you're using -M (dependency generation).
2615 if ( ! $Only_generate_deps && ! -d $Specific_output_dir) {
2616 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
2621 /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', '');
2622 if ($Specific_output_file ne '-'
2623 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
2624 local($dir_part) = $1;
2625 if (! -d $dir_part) {
2626 print STDERR "$Pgm: no such directory: $dir_part\n";
2632 # NB: -isuf not documented yet (because it doesn't work yet)
2633 /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', '');
2634 if ($Isuffix =~ /\./ ) {
2635 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
2640 /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', '');
2641 if ($Osuffix =~ /\./ ) {
2642 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
2647 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
2648 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', '');
2649 if ($Specific_hi_file ne '-'
2650 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
2651 local($dir_part) = $1;
2652 if (! -d $dir_part) {
2653 print STDERR "$Pgm: no such directory: $dir_part\n";
2659 # The suffix to use when looking for interface files
2660 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', '');
2661 if ($HiSuffix =~ /\./ ) {
2662 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
2666 # ToDo: remove, not a `normal' user thing to do (should be automatic)
2667 /^-hisuf-prelude$/ && do { $HiSuffix_prelude = &grab_arg_arg(*Args,'-hisuf-prelude', '');
2668 if ($HiSuffix =~ /\./ ) {
2669 print STDERR "$Pgm: -hisuf-prelude suffix shouldn't contain a .\n";
2673 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', '');
2674 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
2675 local($dir_part) = $1;
2676 if (! -d $dir_part) {
2677 print STDERR "$Pgm: no such directory: $dir_part\n";
2683 #-------------- scc & Profiling Stuff ----------------------------------
2685 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
2688 # generate auto SCCs on top level bindings
2689 # -auto-all = all top level bindings
2690 # -auto = only top level exported bindings
2691 $PROFauto = ( /-all/ )
2692 ? '-fauto-sccs-on-all-toplevs'
2693 : '-fauto-sccs-on-exported-toplevs';
2696 /^-caf-all/ && do { # generate individual CAF SCC annotations
2697 $PROFcaf = '-fauto-sccs-on-individual-cafs';
2700 /^-ignore-scc$/ && do {
2701 # forces ignore of scc annotations even if profiling
2702 $PROFignore_scc = '-W';
2705 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
2708 /^-unprof-scc-auto/ && do {
2709 # generate auto SCCs on top level bindings when not profiling.
2710 # Used to measure optimisation effects of presence of sccs.
2711 $UNPROFscc_auto = ( /-all/ )
2712 ? '-fauto-sccs-on-all-toplevs'
2713 : '-fauto-sccs-on-exported-toplevs';
2716 #--------- ticky/concurrent/parallel -----------------------------------
2717 # we sort out the details a bit later on
2719 /^-concurrent$/ && do { $CONCURing = 'c'; next arg; }; # concurrent Haskell
2720 /^-gransim$/ && do { $GRANing = 'g'; next arg; }; # GranSim
2721 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
2722 /^-parallel$/ && do { $PARing = 'p'; next arg; }; # parallel Haskell
2724 #-------------- "user ways" --------------------------------------------
2726 (/^-user-setup-([a-oA-Z])$/ ) &&
2728 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
2730 local($stuff) = $UserSetupOpts{$BuildTag};
2731 local(@opts) = split(/\s+/, $stuff);
2733 # feed relevant ops into the arg-processing loop (if any)
2734 unshift(@Args, @opts) if $#opts >= 0;
2738 #---------- set search paths for libraries and things ------------------
2740 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
2741 # prepends the items to the list); -I is for including C .h files.
2743 /^-i$/ && do { @Import_dir = (); # import path cleared!
2744 @SysImport_dir = ();
2745 print STDERR "WARNING: import paths cleared by `-i'\n";
2748 /^-i(.*)/ && do { local(@new_items)
2749 = split( /:/, &grab_arg_arg(*Args,'-i', $1));
2750 unshift(@Import_dir, @new_items);
2753 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; };
2754 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; };
2755 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; };
2757 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1);
2758 print STDERR "$Pgm: no such system library (-syslib): $syslib\n",
2759 $Status++ unless $syslib =~ /^(hbc|ghc|posix|contrib)$/;
2761 unshift(@SysImport_dir,
2763 ? "$InstSysLibDir/$syslib/imports"
2764 : "$TopPwd/hslibs/$syslib/src");
2766 if ( ${INSTALLING} ) {
2767 push(@SysLibrary_dir,
2768 ("$InstSysLibDir"));
2770 push(@SysLibrary_dir,
2771 ("$TopPwd/hslibs/$syslib"
2772 ,"$TopPwd/hslibs/$syslib/cbits"));
2775 push(@SysLibrary, "-lHS$syslib");
2776 push(@SysLibrary, "-lHS${syslib}_cbits")
2777 unless $syslib eq 'contrib'; #HACK! it has no cbits
2781 #=======================================================================
2782 # various flags that we can harmlessly send to one program or another
2783 # (we will later "reclaim" some of the compiler ones now sent to gcc)
2784 #=======================================================================
2786 #---------- this driver itself (ghc) -----------------------------------
2787 # these change what executable is run for each phase:
2788 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
2789 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
2790 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
2791 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
2792 /^-pgma(.*)$/ && do { $As = $1; next arg; };
2793 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
2794 /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; };
2796 #---------- the get-anything-through opts (all pgms) -------------------
2797 # these allow arbitrary option-strings to go to any phase:
2798 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
2799 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
2800 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
2801 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
2802 /^-optcpp(.*)$/ && do { push(@Cpp_define, $1); $Only_preprocess_hc = ($1 eq "-E"); next arg; };
2803 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
2804 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
2805 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
2806 /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; };
2808 #---------- Haskell C pre-processor (hscpp) ----------------------------
2809 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; };
2810 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; };
2812 /^-genSPECS/ && do { $Cpp_flag_set = 1;
2813 $genSPECS_flag = $_;
2816 #---------- post-Haskell "assembler"------------------------------------
2817 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
2818 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
2820 #---------- Haskell compiler (hsc) -------------------------------------
2822 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
2823 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
2825 /^-fhaskell-1\.3$/ && do { next arg; }; # a no-op right now
2827 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
2829 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
2830 # don't do stack checking using page fault `trick'.
2832 /^-fstack-check$/ && do { $StkChkByPageFaultOK = 0; next arg; };
2834 # have the compiler proper generate concurrent code,
2835 # really only used when you want to configure your own
2836 # special user compilation way. (Use -concurrent when
2837 # compiling `Concurrent Haskell' programs).
2839 # (ditto for -fgransim, fscc-profiling and -fticky-ticky)
2841 /^-fconcurrent$/ && do { push(@HsC_flags,$_); next arg; };
2842 /^-fscc-profiling$/ && do { push(@HsC_flags,$_); next arg; };
2843 /^-fticky-ticky$/ && do { push(@HsC_flags,$_); next arg; };
2844 /^-fgransim$/ && do { push(@HsC_flags,$_); next arg; };
2846 /^-split-objs/ && do {
2847 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|rs6000|sparc)-/ ) {
2849 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
2854 push(@HsC_flags, "-fglobalise-toplev-names");
2855 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
2857 require('ghc-split.prl')
2858 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
2863 && do { push(@HsC_flags, $_);
2864 push(@HsP_flags, '-N');
2866 # push(@HsC_flags, '-fshow-import-specs');
2870 /^-fspeciali[sz]e-unboxed$/
2871 && do { $Oopt_DoSpecialise = '-fspecialise';
2872 $Oopt_SpecialiseUnboxed = '-fspecialise-unboxed';
2875 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
2876 /^-fno-speciali[sz]e$/
2877 && do { $Oopt_DoSpecialise = ''; next arg; };
2880 # Now the foldr/build options, which are *on* by default (for -O).
2883 && do { $Oopt_FoldrBuild = 1;
2884 $Oopt_FB_Support = '-fdo-arity-expand';
2888 /^-fno-foldr-build$/
2889 && do { $Oopt_FoldrBuild = 0;
2890 $Oopt_FB_Support = '';
2893 /^-fno-foldr-build-rule$/
2894 && do { $Oopt_FoldrBuild = 0;
2897 /^-fno-enable-tech$/
2898 && do { $Oopt_FB_Support = '';
2901 /^-fno-snapback-to-append$/
2902 && do { $Oopt_FoldrBuildInline .= ' -fdo-not-fold-back-append ';
2905 # --------------- Renamer -------------
2908 /^-fno-prune-tydecls$/ && do { push(@HsC_flags, $_); next arg; };
2909 /^-fno-prune-instdecls$/ && do { push(@HsC_flags, $_); next arg; };
2913 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
2914 /^-fvia-[cC]$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
2918 /^(-funfolding-use-threshold)(.*)$/
2919 && do { $Oopt_UnfoldingUseThreshold = $1 . &grab_arg_arg(*Args,$1, $2);
2922 /^(-fmax-simplifier-iterations)(.*)$/
2923 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2);
2925 /^(-fshow-simplifier-progress)/
2926 && do { $Oopt_ShowSimplifierProgress = $1;
2929 /^-fno-pedantic-bottoms$/
2930 && do { $Oopt_PedanticBottoms = ''; next arg; };
2932 /^-fdo-monad-eta-expansion$/
2933 && do { $Oopt_MonadEtaExpansion = $_; next arg; };
2935 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
2936 && do { push(@HsC_flags, $_); next arg; };
2938 /^(-freturn-in-regs-threshold)(.*)$/
2939 && do { local($what) = $1;
2940 local($num) = &grab_arg_arg(*Args,$what, $2);
2941 if ($num < 2 || $num > 8) {
2942 die "Bad experimental flag: $_\n";
2944 $HscOut = '-C='; # force using C compiler
2945 push(@HsC_flags, "$what$num");
2946 push(@CcRegd_flags, "-D__STG_REGS_AVAIL__=$num");
2950 # --------------- Warnings etc. ------
2952 /^-fshow-import-specs/
2953 && do { push(@HsC_flags, $_); next arg; };
2955 /^-fwarn-(.*)$/ && do { push(@HsC_flags, $_); next arg; };
2957 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
2958 &squashHscFlag("-f$1");
2961 /^-W$/ && do { push(@HsC_flags, @MinusWOpts); next arg; };
2962 /^-Wall$/ && do { push(@HsC_flags, @MinusWallOpts); next arg; };
2963 /^-Wnot$/ && do { foreach (@Hsc_flags) {
2964 /^-fwarn-(.*)$/ && do { $_=''; };
2966 push(@HsC_antiflags, @StandardWarnings);
2969 # --------------- platform specific flags (for gcc mostly) ----------------
2971 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes,
2972 # for 2.6.x..?, does not apply for 2.7.2
2974 unshift(@CcBoth_flags, ( $_ ));
2977 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
2978 && do { # for GCC for SPARCs
2979 unshift(@CcBoth_flags, ( $_ ));
2982 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
2983 $StolenX86Regs = $1;
2986 #*************** ... and lots of debugging ones (form: -d* )
2988 # -d(no-)core-lint is done this way so it is turn-off-able.
2989 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
2990 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
2991 # Ditto for STG lint
2992 /^-dstg-lint/ && do { $StgLint = '-dstg-lint'; next arg; };
2993 /^-dno-stg-lint/ && do { $StgLint = ''; next arg; };
2995 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
2996 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
2997 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
2998 /^-dshow-rn-stats/ && do { push(@HsC_flags, $_); next arg; };
2999 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
3000 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
3001 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
3002 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
3004 #*************** ... and now all these -R* ones for its runtime system...
3006 /^-Rscale-sizes?(.*)/ && do {
3007 $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1);
3010 /^(-H|-Rmax-heapsize)(.*)/ && do {
3011 local($heap_size) = &grab_arg_arg(*Args,$1, $2);
3012 if ($heap_size =~ /(\d+)[Kk]$/) {
3013 $heap_size = $1 * 1000;
3014 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
3015 $heap_size = $1 * 1000 * 1000;
3016 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
3017 $heap_size = $1 * 1000 * 1000 * 1000;
3019 if ($heap_size <= 0) {
3020 print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n";
3021 $Specific_heap_size = 0;
3023 # if several heap sizes given, take the largest...
3024 } elsif ($heap_size >= $Specific_heap_size) {
3025 $Specific_heap_size = $heap_size;
3027 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n";
3031 /^(-K|Rmax-(stk|stack)size)(.*)/ && do {
3033 local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3);
3034 if ($stk_size =~ /(\d+)[Kk]$/) {
3035 $stk_size = $1 * 1000;
3036 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
3037 $stk_size = $1 * 1000 * 1000;
3038 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
3039 $stk_size = $1 * 1000 * 1000 * 1000;
3041 if ($stk_size <= 0) {
3042 print STDERR "$Pgm: resetting stack-size to zero!!! $stk_size\n";
3043 $Specific_stk_size = 0;
3045 # if several stack sizes given, take the largest...
3046 } elsif ($stk_size >= $Specific_stk_size) {
3047 $Specific_stk_size = $stk_size;
3049 print STDERR "$Pgm: ignoring stack-size-setting option ($flag $stk_size)...not the largest seen\n";
3053 /^-Rgc-stats$/ && do { $CollectingGCstats++;
3054 # the two RTSs do this diff ways; we will try to compensate
3057 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
3059 #---------- C high-level assembler (gcc) -------------------------------
3060 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
3062 # -dgcc-lint is a useful way of making GCC very fussy.
3063 # From alan@spri.levels.unisa.edu.au (Alan Modra).
3064 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
3065 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
3066 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
3068 # inject "#include <wurble>" into the compiler's C output!
3070 /^-#include(.*)/ && do {
3071 local($to_include) = &grab_arg_arg(*Args,'-#include', $1);
3072 push(@CcInjects, "#include $to_include\n");
3075 #---------- Linker (gcc, really) ---------------------------------------
3077 /^-static$/ && do { push(@Ld_flags, $_); next arg; };
3079 #---------- mixed cc and linker magic ----------------------------------
3080 # this optimisation stuff is finally sorted out later on...
3082 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
3084 /^-O[1-2]?$/ && do {
3085 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
3086 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
3088 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
3091 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
3093 /^-Ofile(.*)/ && do {
3095 local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1);
3096 @HsC_minusO3_flags = ();
3098 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
3101 s/\#.*//; # death to comments
3102 s/[ \t]+//g; # death to whitespace
3103 next if /^$/; # ditto, blank lines
3104 s/([()*{}])/\\$1/g; # protect shell metacharacters
3106 push(@CcBoth_flags, $1);
3108 push(@HsC_minusO3_flags, $_);
3114 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
3115 # in the consistency info
3119 #---------- linking .a file --------------------------------------------
3121 /^-Main(.*)/ && do {
3122 # specifies main or mainPrimIO to be linked
3126 #---------- catch unrecognized flags -----------------------------------
3129 print STDERR "$Pgm: unrecognised option: $_\n";
3135 } # end of processArgs