2 % (c) The GRASP/AQUA Project, Glasgow University, 1992-1997
5 This is the driver script for the Glasgow Haskell compilation system.
6 It is written in \tr{perl}. The first section includes a long
7 ``usage'' message that describes how the driver is supposed to work.
9 %************************************************************************
11 \section[Driver-usage]{Usage message}
13 %************************************************************************
16 ($Pgm = $0) =~ s|.*/||;
17 $ShortUsage = "\nUsage: For basic information, try the `-help' option.\n";
18 $LongUsage = "\n" . <<EOUSAGE;
19 Use of the Glorious Haskell Compilation System driver:
21 $Pgm [command-line-options-and-input-files]
23 ------------------------------------------------------------------------
24 This driver ($Pgm) guides each input file through (some of the)
25 possible phases of a compilation:
27 - unlit: extract code from a "literate program"
28 - hscpp: run code through the C pre-processor (if -cpp flag given)
29 - hsc: run the Haskell compiler proper
30 - gcc: run the C compiler (if compiling via C)
31 - as: run the assembler
34 For each input file, the phase to START with is determined by the
36 - .lhs literate Haskell: unlit
37 - .hs illiterate Haskell: hsc
38 - .hc C from the Haskell compiler: gcc
39 - .c C not from the Haskell compiler: gcc
40 - .s assembly language: as
41 - other passed directly to the linker: ld
43 If no files are given on the command line, input is taken from
44 standard input, and processing is as for an .hs file. (All output is
45 to stdout or stderr, however).
47 The phase at which to STOP processing is determined by a command-line
49 -E stop after generating preprocessed, de-litted Haskell (used in conjunction with -cpp)
50 -C stop after generating C (.hc output)
51 -S stop after generating assembler (.s output)
52 -c stop after generating object files (.o output)
54 Other commonly-used options are:
56 -O An `optimising' package of compiler flags, for faster code
58 -prof Compile for cost-centre profiling
59 (add -auto for automagic cost-centres on top-level functions)
61 -fglasgow-exts Allow Glasgow extensions (unboxed types, etc.)
63 -H14m Increase compiler's heap size
65 -M Output the Makefile rules recording the
66 dependencies of a list of Haskell files.
67 (ghc driver script calls upon the help of a
68 compatible mkdependHS script to do the actual
71 The User's Guide has more information about GHC's *many* options.
73 Given the above, here are some TYPICAL invocations of $Pgm:
75 # compile a Haskell module to a .o file, optimising:
77 # link three .o files into an executable called "test":
78 % $Pgm -o test Foo.o Bar.o Baz.o
79 # compile a Haskell module to C (a .hc file), using a bigger heap:
80 % $Pgm -C -H16m Foo.hs
81 # compile Haskell-produced C (.hc) to assembly language:
83 ------------------------------------------------------------------------
87 %************************************************************************
89 \section[Driver-init]{Initialisation}
91 %************************************************************************
93 The driver script need to be told where to find these executables, so
94 in the course of building the driver `executable', make-variables holding
95 these are prepended to the de-litted version of this file. The variables are:
100 HOSTPLATFORM TARGETPLATFORM
102 PROJECTNAME PROJECTVERSION PROJECTPATCHLEVEL
106 bindir libdir libexecdir datadir
110 GHC_LIB_DIR GHC_RUNTIME_DIR GHC_UTILS_DIR GHC_INCLUDE_DIR
112 GHC_OPT_HILEV_ASM GhcWithNativeCodeGen
114 GHC_UNLIT GHC_HSCPP GHC_HSC GHC_SYSMAN
118 WAY_*_NAME WAY_*_HC_OPTS
124 Establish what executables to run for the various phases, what the
125 default options are for those phases, and other similar boring stuff.
128 select(STDERR); $| = 1; select(STDOUT); # no STDERR buffering, please.
130 $TargetPlatform = $TARGETPLATFORM;
132 $TopPwd = "${TOP_PWD}";
133 $InstBinDirGhc = "${bindir}";
134 $InstLibDirGhc = "${libdir}";
136 # Normally the same as InstLibDirGhc, but we accommodate
137 # for it being separate.
139 $InstLibExecDirGhc = "${libexecdir}";
140 $InstDataDirGhc = "${datadir}";
141 $InstSysLibDir = ( $INSTALLING ) ? "${InstLibDirGhc}/hslibs" : "$TopPwd/hslibs";
143 $Status = 0; # just used for exit() status
146 # set up signal handler
147 sub quit_upon_signal { &tidy_up_and_die(1, ''); }
148 $SIG{'INT'} = 'quit_upon_signal';
149 $SIG{'QUIT'} = 'quit_upon_signal';
151 # where to get "require"d .prl files at runtime (poor man's dynamic loading)
152 # (use LIB, not DATA, because we can't be sure of arch-independence)
153 @INC = ( ( $INSTALLING ) ? $InstLibDirGhc
154 : "$TopPwd/${CURRENT_DIR}" );
156 if ( $ENV{'TMPDIR'} ) { # where to make tmp file names
157 $Tmp_prefix = ($ENV{'TMPDIR'} . "/ghc$$");
159 print STDERR "TMPDIR has not been set to anything useful!\n" if (${TMPDIR} eq '');
160 $Tmp_prefix ="${TMPDIR}/ghc$$"; # TMPDIR set via Makefile when booting..
161 $ENV{'TMPDIR'} = ${TMPDIR}; # set the env var as well
164 # Some shells run into real trouble when command line and environment
165 # gets big (e.g., cmd lines of >4K to /bin/sh causes havoc on our
166 # Solaris-2.5.1 boxes - even though sysconf(_SC_ARG_MAX) reports 1M ...).
167 # To work around any such */bin/sh* problems, we will scribble such
168 # awfully long command lines into a temp file and exec that temp file
169 # with $(REAL_SHELL) (don't use the SHELL variable directly as this
170 # will normally get you the wrong thing when the driver is invoked
171 # from within `make'). If the REAL_SHELL variable isn't set, you'll
172 # get SHELL. This is all a terrible hack. (in case you hadn't reached
173 # the same conclusion by now :-)
177 if ( ! $ENV{'REAL_SHELL'} ) {
178 $ENV{'REAL_SHELL'} = $ENV{'SHELL'};
181 @Files_to_tidy = (); # files we nuke in the case of abnormal termination
183 $Unlit = ( $INSTALLING ) ? "$InstLibExecDirGhc/unlit"
184 : "$TopPwd/${CURRENT_DIR}/${GHC_UNLIT}";
188 $Diff = $CONTEXT_DIFF;
193 $HsCpp = # but this is re-set to "cat" (after options) if -cpp not seen
194 ( $INSTALLING ) ? "$InstLibExecDirGhc/hscpp"
195 : "$TopPwd/${CURRENT_DIR}/${GHC_HSCPP}";
198 $genSPECS_flag = ''; # See ../utils/hscpp/hscpp.prl
199 $HsC = ( $INSTALLING ) ? "$InstLibExecDirGhc/hsc"
200 : "$TopPwd/${CURRENT_DIR}/${GHC_HSC}";
202 # For PVM fiends only
203 $SysMan = ( $INSTALLING ) ? "$InstLibExecDirGhc/SysMan"
204 : "$TopPwd/${CURRENT_DIR}/${GHC_SYSMAN}";
209 # HsC_rts_flags: if we want to talk to the LML runtime system
210 # NB: we don't use powers-of-2 sizes, because this may do
211 # terrible things to cache behavior.
213 $Specific_heap_size = 6 * 1000 * 1000;
214 $Specific_stk_size = 1000 * 1000;
215 $Scale_sizes_by = 1.0;
219 The variables set by @setupOptFlags@ represent parts of the
220 -O/-O2/etc ``templates,'' which are filled in later, using these.
221 These are the default values, which may be changed by user flags.
225 $Oopt_UnfoldingUseThreshold = '-fsimpl-uf-use-threshold3';
226 $Oopt_MaxSimplifierIterations = '-fmax-simplifier-iterations4';
227 $Oopt_PedanticBottoms = '-fpedantic-bottoms'; # ON by default
228 $Oopt_MonadEtaExpansion = '';
229 $Oopt_FinalStgProfilingMassage = '';
231 $Oopt_SpecialiseUnboxed = '';
232 $Oopt_DoSpecialise = ''; # ToDo:LATER: '-fspecialise';
233 $Oopt_FoldrBuild = 0; # *Off* by default!
234 $Oopt_FB_Support = ''; # was '-fdo-arity-expand';
235 # $Oopt_FoldrBuildWW = 0; # Off by default
236 $Oopt_FoldrBuildInline = ''; # was '-fdo-inline-foldr-build';
237 $Oopt_ShowSimplifierProgress = '';
238 } # end of setupOptFlags
240 # Assign defaults to these right away.
244 Things to do with C compilers/etc:
246 $CcRegd = $GHC_OPT_HILEV_ASM;
247 @CcBoth_flags = ('-S'); # flags for *any* C compilation
251 # those for all files,
252 # those only for .c files;
253 # those only for .hc files
255 @CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__');
256 @CcRegd_flags_c = ();
257 @CcRegd_flags_hc = ();
259 $As = ''; # "assembler" is normally GCC
262 $Lnkr = ''; # "linker" is normally GCC
265 # 'nm' is used for consistency checking (ToDo: mk-world-ify)
266 # ToDo: check the OS or something ("alpha" is surely not the crucial question)
267 $Nm = ($TargetPlatform =~ /^alpha-/) ? 'nm -B' : 'nm';
270 Warning packages that are controlled by -W and -Wall. The 'standard'
271 warnings that you get all the time are
273 -fwarn-overlapping-patterns
274 -fwarn-missing-methods
276 these are turned off by -Wnot.
279 @StandardWarnings = ('-fwarn-overlapping-patterns',
280 '-fwarn-missing-methods');
281 @MinusWOpts = (@StandardWarnings,
282 '-fwarn-incomplete-patterns',
283 '-fwarn-unused-names');
284 @MinusWallOpts = (@MinusWOpts,
285 '-fwarn-name-shadowing');
288 What options \tr{-user-setup-a} turn into (user-defined ``packages''
290 of options). Note that a particular user-setup implies a particular
291 Prelude ({\em including} its interface file(s)).
293 $BuildTag = ''; # default is sequential build w/ Appel-style GC
295 %BuildDescr = (# system ways begin
296 '', 'normal sequential',
300 '_mc', "$WAY_mc_NAME",
301 '_mr', "$WAY_mr_NAME",
302 '_mt', "$WAY_mt_NAME",
303 '_mp', "$WAY_mp_NAME",
304 '_mg', "$WAY_mg_NAME",
305 '_2s', "$WAY_2s_NAME",
306 '_1s', "$WAY_1s_NAME",
307 '_du', "$WAY_du_NAME",
325 '_B', "$WAY_B_NAME" );
327 # these are options that are "fed back" through the option processing loop
331 '_a', "$WAY_a_HC_OPTS",
332 '_b', "$WAY_b_HC_OPTS",
333 '_c', "$WAY_c_HC_OPTS",
334 '_d', "$WAY_d_HC_OPTS",
335 '_e', "$WAY_e_HC_OPTS",
336 '_f', "$WAY_f_HC_OPTS",
337 '_g', "$WAY_g_HC_OPTS",
338 '_h', "$WAY_h_HC_OPTS",
339 '_i', "$WAY_i_HC_OPTS",
340 '_j', "$WAY_j_HC_OPTS",
341 '_k', "$WAY_k_HC_OPTS",
342 '_l', "$WAY_l_HC_OPTS",
343 '_m', "$WAY_m_HC_OPTS",
344 '_n', "$WAY_n_HC_OPTS",
345 '_o', "$WAY_o_HC_OPTS",
346 '_A', "$WAY_A_HC_OPTS",
347 '_B', "$WAY_B_HC_OPTS",
350 '_p', "$WAY_p_HC_OPTS",
351 '_t', "$WAY_t_HC_OPTS",
352 '_u', "$WAY_u_HC_OPTS",
353 '_mc', "$WAY_mc_HC_OPTS",
354 '_mr', "$WAY_mr_HC_OPTS",
355 '_mt', "$WAY_mt_HC_OPTS",
356 '_mp', "$WAY_mp_HC_OPTS",
357 '_mg', "$WAY_mg_HC_OPTS",
358 '_2s', "$WAY_2s_HC_OPTS",
359 '_1s', "$WAY_1s_HC_OPTS",
360 '_du', "$WAY_B_HC_OPTS" );
364 Import/include directories (\tr{-I} options) are sufficiently weird to
365 require special handling.
368 @Import_dir = ('.'); #-i things
369 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
371 # where to look for interface files (system hi's, i.e., prelude and hslibs)
372 @SysImport_dir = ( $INSTALLING )
373 ? ( "$InstLibDirGhc/imports" )
374 : ( "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/required"
375 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/ghc"
376 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/glaExts"
377 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent" );
379 # We need to look in ghc/ and glaExts/ when searching for implicitly needed .hi files, but
380 # we should really *not* look there for explicitly imported modules.
382 $GhcVersionInfo = int($PROJECTVERSION * 100 + .5); # i.e., round (X.Y * 100)
383 $Haskell1Version = 4; # i.e., Haskell 1.4
386 @UserLibrary_dir= (); #-L things;...
387 @UserLibrary = (); #-l things asked for by the user
389 @SysLibrary_dir = ( ( $INSTALLING ) #-syslib things supplied by the system
391 : ( "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR"
392 , "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/gmp"
393 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR"
394 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/cbits"
397 @SysLibrary = (); # will be built up as we go along
399 $TopClosureFile # defaults to 1.2 one; will be mangled later
400 = ( $INSTALLING) ? "$InstLibDirGhc/TopClosureXXXX.o"
401 : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/main/TopClosureXXXX.o";
403 # make depend for Haskell
405 = ( $INSTALLING ) ? "$InstBinDirGhc/mkdependHS"
406 : "$TopPwd/$CURRENT_DIR/$GHC_UTILS_DIR/mkdependHS/mkdependHS";
408 @MkDependHS_flags = ();
410 # do_link flag should not be reset while rescanning the cmd-line.
412 $Specific_output_dir = ''; # set by -odir <dir>
413 $Specific_output_file = ''; # set by -o <file>; "-" for stdout
416 Function to initialise the per-compilation-unit globals that
417 are used to guide and control the invocation of the different phases.
420 sub initDriverGlobals {
422 # reset the following options:
423 # RTS flags to use while compiling
425 @HsP_flags = (); # these are the flags destined solely for
426 # the flex/yacc parser
431 The optimisations/etc to be done by the compiler are {\em normally}
432 expressed with a \tr{-O} (or \tr{-O2}) flag, or by its absence.
435 $OptLevel = 0; # no -O == 0; -O == 1; -O2 == 2; -Ofile == 3
436 $MinusO2ForC = 0; # set to 1 if -O2 should be given to C compiler
437 $StolenX86Regs = 4; # **HACK*** of the very worst sort
441 @CcBoth_flags = ('-S'); # flags for *any* C compilation
444 # GCC flags: those for all files, those only for .c files; those only for .hc files
445 @CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__');
446 @CcRegd_flags_c = ();
447 @CcRegd_flags_hc = ();
449 @Import_dir = ('.'); #-i things
450 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
455 We are given a list of files with various presumably-known suffixes
456 (unknown-suffix files go straight to the linker). For each file, we
457 begin by assuming that we'll run every phase over it. However: (1)
458 global flags (\tr{-c}, \tr{-S}, etc.) tell us not to run any phase
459 past a certain point; and (2) the file's suffix tells us what phase to
460 start with. Linking is weird and kept track of separately.
462 Here are the initial defaults applied to all files:
464 $Cpp_flag_set = 0; # (hack)
465 $Only_preprocess_C = 0; # pretty hackish
466 $Only_preprocess_hc = 0; # ditto
467 $Only_generate_deps = 0; # "
468 $PostprocessCcOutput = 0;
470 # native code-gen or via C?
471 $HaveNativeCodeGen = $GhcWithNativeCodeGen;
472 $HscOut = '-C='; # '-C=' ==> .hc output; '-S=' ==> .s output; '-N=' ==> neither
474 if $HaveNativeCodeGen && $TargetPlatform =~ /^(alpha|sparc)-/;
475 # TEMP: disable x86 if $HaveNativeCodeGen && $TargetPlatform =~ /^(i386|alpha|sparc)-/;
476 $ProduceHi = '-hifile=';
481 $CollectingGCstats = 0;
482 $CollectGhcTimings = 0;
483 $DEBUGging = ''; # -DDEBUG and all that it entails (um... not really)
484 $PROFing = ''; # set to p or e if profiling
485 $PROFgroup = ''; # set to group if an explicit -Ggroup specified
486 $PROFauto = ''; # set to relevant hsc flag if -auto or -auto-all
487 $PROFcaf = ''; # set to relevant hsc flag if -caf-all
488 $PROFignore_scc = ''; # set to relevant parser flag if explicit sccs ignored
489 $UNPROFscc_auto = ''; # set to relevant hsc flag if forcing auto sccs without profiling
490 $TICKYing = ''; # set to t if compiling for ticky-ticky profiling
491 $PARing = ''; # set to p if compiling for PAR
492 $CONCURing = ''; # set to c if compiling for CONCURRENT
493 $GRANing = ''; # set to g if compiling for GRAN
494 $StkChkByPageFaultOK = 1; # may be set to 0 (false) for some builds
495 $Specific_hi_file = ''; # set by -ohi <file>; "-" for stdout
496 $Specific_dump_file = ''; # set by -odump <file>; "-" for stdout
497 $Using_dump_file = 0;
499 $Osuffix = ''; # default: use the normal suffix for that kind of output
501 $HiSuffix_prelude = '';
502 $Do_recomp_chkr = 0; # don't use the recompilatio checker unless asked
503 $Do_cc = -1; # a MAGIC indeterminate value; will be set to 1 or 0.
506 $Keep_hc_file_too = 0;
507 $Keep_s_file_too = 0;
508 $UseGhcInternals = 0; # if 1, may use GHC* modules
511 $Dump_parser_output = 0;
513 $Dump_asm_splitting_info = 0;
514 $NoImplicitPrelude = 0;
517 } # end of initDriverGlobals (Sigh)
519 # we split the argv passed to the driver into three:
524 # and files to be linked...
530 # cmd line options prefixing the unit we're compiling
535 We inject consistency-checking information into \tr{.hc} files (both
536 when created by the Haskell compiler and when compiled by the C
537 compiler), so that we can check that an executable is made from
538 consistently-built pieces. (The check is normally done just after
539 linking.) The checking is done by introducing/munging
540 \tr{what(1)}-style strings. Anyway, here are the relevant global
541 variables and their defaults:
543 $LinkChk = 1; # set to 0 if the link check should *not* be done
545 # major & minor version numbers; major numbers must always agree;
546 # minor disagreements yield a warning.
547 $HsC_major_version = 33;
548 $HsC_minor_version = 0;
549 $Cc_major_version = 36;
550 $Cc_minor_version = 1;
552 # options: these must always agree
553 $HsC_consist_options = ''; # we record, in this order:
554 # Build tag; debugging?
555 $Cc_consist_options = ''; # we record, in this order:
556 # Build tag; debugging?
559 %************************************************************************
561 \section[Driver-parse-argv]{Munge the command-line options}
563 %************************************************************************
565 Now slurp through the arguments.
568 &initDriverGlobals();
569 &splitCmdLine(@ARGV);
570 # Run through the cmd-line first time.
571 &processArgs(@Cmd_opts);
573 # Check to see if driver is only in the business
574 # to generate dependencies
575 if ( $Status == 0 && $Only_generate_deps ) {
577 push (@MkDependHS_flags, "-o$Osuffix") if $Osuffix;
578 push (@MkDependHS_flags, "-s$BuildTag") if $BuildTag;
579 push (@MkDependHS_flags, "-D__HASKELL1__=$Haskell1Version");
580 # They're not (currently) needed, but we need to quote any -#include options
581 foreach (@Cmd_opts) {
582 s/-#include.*$/'$&'/g;
584 local($to_do) = "$MkDependHS @MkDependHS_flags -- @Cmd_opts -- @Input_file" ;
585 &run_something($to_do, 'Haskell dependencies');
589 # if there are several input files,
590 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
591 # (except if linking, of course)
593 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
594 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
595 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
596 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
597 print STDERR "\tPerhaps the -odir option will do what you want.\n";
602 # check for various pathological -o and -odir combinations...
603 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
604 if ($Specific_output_file eq '-') {
605 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
607 } else { # amalgamate...
608 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
609 # ToDo: check we haven't got a junk name now...
610 $Specific_output_dir = ''; # reset
614 # crash and burn if there were errors
616 print STDERR $ShortUsage;
621 %************************************************************************
623 \section[Driver-post-argv-mangling]{Setup after reading options}
625 %************************************************************************
627 %************************************************************************
629 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
631 %************************************************************************
633 We come now to the default ``wads of options'' that are turned on by
634 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
635 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
638 The user can also specify his/her own list of options in a file; in
639 that case, the work is already done (see stuff about @minusO3@,
642 GHC allows very precise control of what happens during a compilation.
643 Core-to-Core and STG-to-STG passes can be run in any order, as many
644 times as you like. Individual transformations can be turned on or
647 Sadly, however, there are some interdependencies \& Things You Must
648 Not Do. Here is the list.
652 \item[\tr{-fspecialise}:]
653 The specialiser must have dependency-analysed input; but if you run
654 the simplifier to do this, you must not let it toss away unused
655 bindings! (The typechecker conveys some specialisation info via
656 ``unused'' bindings...)
658 \item[\tr{-ffloat-inwards}:]
659 Floating inwards should be done before strictness analysis, because
660 the latter will give better results.
662 \item[\tr{-fstatic-args}:]
663 The static-arguments-transformation pass {\em must} have the
664 simplifier run right after it.
666 \item[\tr{-fcalc-inlinings[12]}:]
667 Not required, but there may be slight gains by re-simplifying after
668 this is done. (You could then \tr{-fcalc-inlinings} again, just for
671 \item[\tr{-ffull-laziness}:]
672 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
673 that's run. (Um, well, howzabout the simplifier just once more...)
678 \item[\tr{-fupdate-analysis}:]
679 It really really wants to be the last STG-to-STG pass that is run.
684 sub setupOptimiseFlags {
690 '-ffloat-lets-exposing-whnf',
691 '-ffloat-primops-ok',
694 # '-fdo-lambda-eta-expansion', # too complicated
696 # '-flet-to-case', # no strictness analysis, so...
697 $Oopt_PedanticBottoms,
698 # $Oopt_MonadEtaExpansion, # no thanks
700 # These two work fine, if you really want no simplification at all,
701 # for bizarre test reasons. But you get really terrible code if you use them,
702 # for example: let x = e in x
703 # with dozens of redundant thunks etc. So I'm leaving them out.
705 # '-fsimpl-uf-use-threshold0',
706 # '-fessential-unfoldings-only',
708 $Oopt_UnfoldingUseThreshold,
709 $Oopt_MaxSimplifierIterations,
710 $Oopt_ShowSimplifierProgress,
713 # '-ffull-laziness', # removed 95/04 WDP following Andr\'e's lead
715 $Oopt_FinalStgProfilingMassage
718 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
720 '-fdo-eta-reduction',
722 # initial simplify: mk specialiser happy: minimum effort please
726 '-fkeep-spec-pragma-ids', # required before specialisation
728 # I don't understand why we want -fessential-unfoldings-only here
729 # If we have it, the following nasty thing happens:
733 # where "*" means exported.
734 # In the essential-unfoldings pass we still substitute f for g
735 # but we don't substitute E for f first. So we get
739 # The g=f will get reverse-substituted later, but it's untidy.
741 # '-fessential-unfoldings-only',
742 # '-fsimpl-uf-use-threshold0',
744 '-fmax-simplifier-iterations1',
745 $Oopt_PedanticBottoms,
748 ($Oopt_DoSpecialise) ? (
749 '-fspecialise-overloaded',
750 $Oopt_SpecialiseUnboxed,
754 '-fsimplify', # need dependency anal after specialiser ...
755 '[', # need tossing before calc-inlinings ...
757 '-ffloat-lets-exposing-whnf',
758 '-ffloat-primops-ok',
762 # '-fdo-eta-reduction',
763 '-fdo-lambda-eta-expansion',
765 $Oopt_PedanticBottoms,
766 $Oopt_MonadEtaExpansion,
767 $Oopt_UnfoldingUseThreshold,
768 $Oopt_MaxSimplifierIterations,
769 $Oopt_ShowSimplifierProgress,
772 #LATER: '-fcalc-inlinings1', -- pointless for 2.01
774 # ($Oopt_FoldrBuildWW) ? (
775 # '-ffoldr-build-ww-anal',
776 # '-ffoldr-build-worker-wrapper',
780 # '-ffloat-lets-exposing-whnf',
781 # '-ffloat-primops-ok',
785 # '-fdo-eta-reduction',
786 # '-fdo-lambda-eta-expansion',
788 # $Oopt_PedanticBottoms,
789 # $Oopt_MonadEtaExpansion,
790 # $Oopt_UnfoldingUseThreshold,
791 # $Oopt_MaxSimplifierIterations,
792 # $Oopt_ShowSimplifierProgress,
796 # this pass-ordering sequence was agreed by Simon and Andr\'e
797 # (WDP 94/07, 94/11).
800 ($Oopt_FoldrBuild) ? (
801 '-ffoldr-build-on', # desugar list comprehensions for foldr/build
805 '-fignore-inline-pragma', # **** NB!
806 '-fdo-foldr-build', # NB
808 '-ffloat-lets-exposing-whnf',
809 '-ffloat-primops-ok',
813 # '-fdo-eta-reduction',
814 '-fdo-lambda-eta-expansion', # After full laziness
816 $Oopt_PedanticBottoms,
817 $Oopt_MonadEtaExpansion,
818 $Oopt_UnfoldingUseThreshold,
819 $Oopt_MaxSimplifierIterations,
820 $Oopt_ShowSimplifierProgress,
829 '-ffloat-lets-exposing-whnf',
830 '-ffloat-primops-ok',
834 '-fdo-eta-reduction',
835 '-fdo-lambda-eta-expansion',
837 ($Oopt_FoldrBuildInline),
838 # you need to inline foldr and build
839 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
840 # but do reductions if you see them!
841 $Oopt_PedanticBottoms,
842 $Oopt_MonadEtaExpansion,
843 $Oopt_UnfoldingUseThreshold,
844 $Oopt_MaxSimplifierIterations,
845 $Oopt_ShowSimplifierProgress,
853 '-ffloat-lets-exposing-whnf',
854 '-ffloat-primops-ok',
858 # '-fdo-eta-reduction',
859 '-fdo-lambda-eta-expansion',
861 '-flet-to-case', # Aha! Only done after strictness analysis
862 $Oopt_PedanticBottoms,
863 $Oopt_MonadEtaExpansion,
864 $Oopt_UnfoldingUseThreshold,
865 $Oopt_MaxSimplifierIterations,
866 $Oopt_ShowSimplifierProgress,
871 # Case-liberation for -O2. This should be after
872 # strictness analysis and the simplification which follows it.
876 # : "-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 ]" ),
878 # Final clean-up simplification:
883 '-ffloat-lets-exposing-whnf',
884 '-ffloat-primops-ok',
888 # '-fdo-eta-reduction',
889 '-fdo-lambda-eta-expansion',
892 '-fignore-inline-pragma', # **** NB!
893 $Oopt_FoldrBuildInline,
894 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
895 # but still do reductions if you see them!
896 $Oopt_PedanticBottoms,
897 $Oopt_MonadEtaExpansion,
898 $Oopt_UnfoldingUseThreshold,
899 $Oopt_MaxSimplifierIterations,
900 $Oopt_ShowSimplifierProgress,
905 #LATER: '-fcalc-inlinings2', -- pointless for 2.01
910 $Oopt_FinalStgProfilingMassage,
916 # SPECIAL FLAGS for -O2
924 Sort out what we're going to do about optimising. First, the @hsc@
925 flags and regular @cc@ flags to worry about:
927 if ( $OptLevel <= 0 ) {
929 # for this level, we tell the parser -fignore-interface-pragmas
930 push(@HsC_flags, '-fignore-interface-pragmas');
931 # and tell the compiler not to produce them
932 push(@HsC_flags, '-fomit-interface-pragmas');
934 &add_Hsc_flags( @HsC_minusNoO_flags );
935 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
937 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
939 &add_Hsc_flags( @HsC_minusO_flags );
940 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
941 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
942 # but it *is* useful in compiling the garbage collectors (so said
943 # Patrick many moons ago...).
945 } else { # -Ofile, then...
947 &add_Hsc_flags( @HsC_minusO3_flags );
948 push(@HsC_flags, $Oopt_FinalStgProfilingMassage) if $Oopt_FinalStgProfilingMassage;
950 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
953 } # setupOptimiseFlags
957 %************************************************************************
959 \subsection{Check for consistency, etc.}
961 %************************************************************************
963 Sort out @$BuildTag@, @$PROFing@, @$CONCURing@, @$PARing@,
964 @$GRANing@, @$TICKYing@:
966 sub setupBuildFlags {
969 # PROFILING stuff after argv mangling:
971 # warn about any scc exprs found (in case scc used as identifier)
972 push(@HsP_flags, '-W');
974 # add -auto sccs even if not profiling !
975 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
978 push(@HsC_flags, $PROFauto) if $PROFauto;
979 push(@HsC_flags, $PROFcaf) if $PROFcaf;
980 #push(@HsC_flags, $PROFdict) if $PROFdict;
982 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
984 push(@HsP_flags, (($PROFignore_scc) ? $PROFignore_scc : '-S'));
986 if ( $SplitObjFiles ) {
987 # can't split with cost centres -- would need global and externs
988 print STDERR "$Pgm: WARNING: splitting objects when profiling will *BREAK* if any _scc_s are present!\n";
989 # (but it's fine if there aren't any _scc_s around...)
990 # $SplitObjFiles = 0; # unset
991 #not an error: for now: $Status++;
994 #if ( $BuildTag ne '' ) {
995 # local($b) = $BuildDescr{$BuildTag};
996 # if ($CONCURing eq 'c') { print STDERR "$Pgm: Can't mix $b with -concurrent.\n"; exit 1; }
997 # if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
998 # if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
999 # if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
1001 # # ok to have a user-way profiling build
1002 # # eval the profiling opts ... but leave user-way BuildTag
1003 # if ($PROFing eq 'p') { &processArgs(split(' ', $SetupOpts{'_p'})); } # eval($EvaldSetupOpts{'_p'}); }
1005 if ( $PROFing eq 'p' ) {
1006 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
1007 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
1008 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
1009 $BuildTag = ($CONCURing eq 'c') ? '_mr' : '_p' ; # possibly "profiled concurrent"...
1011 } elsif ( $CONCURing eq 'c' ) {
1012 if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix -concurrent with -parallel.\n"; exit 1; }
1013 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -concurrent with -gransim.\n"; exit 1; }
1014 $BuildTag = ($TICKYing eq 't') ? '_mt' : '_mc' ; # possibly "ticky concurrent"...
1015 # "profiled concurrent" already acct'd for...
1017 } elsif ( $PARing eq 'p' ) {
1018 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
1019 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
1022 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
1023 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
1027 } elsif ( $GRANing eq 'g' ) {
1028 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
1031 } elsif ( $TICKYing eq 't' ) {
1037 After the sanity checks, add flags to the necessary parts of the driver pipeline:
1040 if ( $BuildTag ne '' ) { # something other than normal sequential...
1042 local($Tag) = "${BuildTag}";
1043 $Tag =~ s/_//; # move the underscore to the back
1045 $HscOut = '-C='; # must go via C
1046 &processArgs(split(' ', $SetupOpts{$BuildTag}));
1047 # eval($EvaldSetupOpts{$BuildTag});
1051 Decide what the consistency-checking options are in force for this run:
1054 $HsC_consist_options = "${BuildTag},${DEBUGging}";
1055 $Cc_consist_options = "${BuildTag},${DEBUGging}";
1058 # Funny place to put it, but why not.
1060 if ( $HiSuffix_prelude eq '' ) {
1061 local($Tag) = "${BuildTag}";
1063 $Tag = "${Tag}_" if $Tag ne '';
1064 $HiSuffix_prelude="${Tag}hi";
1066 #push(@HsC_flags, "-hisuf-prelude=.${HiSuffix_prelude}"); # use appropriate Prelude .hi files
1067 #push(@HsC_flags, "-hisuf=.${HiSuffix}");
1072 %************************************************************************
1074 \subsection{Add on machine-specific C-compiler flags}
1076 %************************************************************************
1078 Shove on magical machine-specific options. We use \tr{unshift} to
1079 stick them on the {\em front} of the arrays, so that ``later''
1080 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
1082 Note: a few ``always apply'' flags were set at the very beginning.
1087 if ($TargetPlatform =~ /^alpha-/) {
1088 # we know how to *mangle* asm for alpha
1089 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1090 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1091 unshift(@CcBoth_flags, ('-static'));
1093 } elsif ($TargetPlatform =~ /^hppa/) {
1094 # we know how to *mangle* asm for hppa
1095 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1096 unshift(@CcBoth_flags, ('-static'));
1098 # We don't put in '-mlong-calls', because it's only
1099 # needed for very big modules (sigh), and we don't want
1100 # to hobble ourselves further on all the other modules
1103 # [Dated comment (gcc-2.6.x?), -mlong-calls is no longer
1104 # a supported gcc HPPA flag]
1105 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
1106 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
1107 # (very nice, but too bad the HP /usr/include files don't agree.)
1109 } elsif ($TargetPlatform =~ /^i386-/) {
1110 # we know how to *mangle* asm for X86
1111 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1112 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK && $TargetPlatform !~ /nextstep/;
1113 # I do not know how to do STACK_CHECK_BY_PAGE_FAULT
1114 # on NeXTs (my fault, not theirs), so I don't.
1117 # -fno-defer-pop : basically the same game as for m68k
1119 # -fomit-frame-pointer : *must* ; because we're stealing
1120 # the fp (%ebp) for our register maps. *All* register
1121 # maps (in MachRegs.lh) must steal it.
1123 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1124 unshift(@CcRegd_flags, '-fomit-frame-pointer');
1125 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1127 } elsif ($TargetPlatform =~ /^m68k-/) {
1128 # we know how to *mangle* asm for m68k
1129 unshift (@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1130 unshift (@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK && $TargetPlatform !~ /nextstep/;
1131 # I do not know how to do STACK_CHECK_BY_PAGE_FAULT
1132 # on NeXTs (my fault, not theirs), so I don't.
1135 # -fno-defer-pop : for the .hc files, we want all the pushing/
1136 # popping of args to routines to be explicit; if we let things
1137 # be deferred 'til after an STGJUMP, imminent death is certain!
1139 # -fomit-frame-pointer : *don't*
1140 # It's better to have a6 completely tied up being a frame pointer
1141 # rather than let GCC pick random things to do with it.
1142 # (If we want to steal a6, then we would try to do things
1143 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1145 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1146 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1147 # maybe gives reg alloc a better time
1148 # also: -fno-defer-pop is not sufficiently well-behaved without it
1150 } elsif ($TargetPlatform =~ /^mips-/) {
1151 # we (hope to) know how to *mangle* asm for MIPSen
1152 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1153 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1154 unshift(@CcBoth_flags, ('-static'));
1156 } elsif ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1157 # we know how to *mangle* asm for PowerPC
1158 # :-( unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1159 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1160 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1161 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1162 } elsif ($TargetPlatform =~ /^sparc-/) {
1163 # we know how to *mangle* asm for SPARC
1164 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1165 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1168 } # end of setupMachOpts
1171 %************************************************************************
1173 \subsection{Set up for warnings}
1175 %************************************************************************
1177 Several warnings are turned on by default. These are supposed to be
1178 the 'I'm pretty sure you've made a mistake here' kind of warnings.
1179 The rest are turned on by the -W and -Wall options, or individually
1180 via their -fwarn and -fno-warn flags.
1183 sub setupWarningFlags {
1184 &add_Hsc_flags( @StandardWarnings );
1188 Same unshifting magic, but for special linker flags.
1190 The configure script determines whether the object file symbol tables
1191 have a leading underscore, and sets @LeadingUnderscore@ accordingly.
1192 (The driver script `sees' the setting of the @LeadingUnderscore@
1193 by having the Makefile prepend it).
1197 local($uscore) = ( ${LeadingUnderscore} eq 'YES' ) ? '_' : '';
1200 (($Ld_main) ? ( '-u', "${uscore}Main_" . $Ld_main . '_closure' ) : ()));
1202 ( '-u', "${uscore}PrelBase_Z91Z93_closure" # i.e., []
1203 ,'-u', "${uscore}PrelBase_IZh_static_info"
1204 ,'-u', "${uscore}PrelBase_CZh_static_info"
1205 ,'-u', "${uscore}PrelBase_False_inregs_info"
1206 ,'-u', "${uscore}PrelBase_True_inregs_info"
1207 ,'-u', "${uscore}DEBUG_REGS"
1209 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1210 # sometimes we have lots of toc entries...
1211 # unshift(@Ld_flags, ('-Xlinker -bbigtoc -Xlinker -bnoquiet'));
1212 unshift(@Ld_flags, ('-Xlinker -bbigtoc'));
1215 } # end of setupLinkOpts
1219 %************************************************************************
1221 \subsection{Set up include paths and system-library enslurpment}
1223 %************************************************************************
1225 Now that we know what garbage-collector, etc., are required, we can
1226 finalise our list of libraries to slurp through, and generally Get
1231 # default includes must be added AFTER option processing
1232 if ( ! $INSTALLING ) {
1233 push (@Include_dir, "$TopPwd/${CURRENT_DIR}/${GHC_INCLUDE_DIR}");
1235 push (@Include_dir, "$InstLibDirGhc/includes");
1236 push (@Include_dir, "$InstLibDirGhc/includes");
1238 } # end of setupIncPaths
1243 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1246 foreach $f (@SysLibrary) {
1247 next if $f =~ /_cbits/;
1248 $f .= $BuildTag if $f =~ /^-lHS/;
1251 # fiddle the TopClosure file name...
1252 $TopClosureFile =~ s/XXXX//;
1254 # Push library HSrts, plus boring clib bit
1255 push(@SysLibrary, "-lHSrts${BuildTag}");
1256 push(@SysLibrary, '-lHSclib');
1258 # RTS compiled with cygwin32, uses the WinMM API
1259 # to implement the itimers, since cygwin.dll does not
1260 # support it. Only reqd. for `ways' that use itimers.
1262 push(@SysLibrary, '-lwinmm') if $BuildTag ne '' && $TargetPlatform eq 'i386-unknown-cygwin32';
1264 # Push the pvm libraries
1265 if ($BuildTag eq '_mp') {
1266 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1267 push(@SysLibrary, "-L$pvmlib", '-lpvm3', '-lgpvm3');
1268 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1269 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1270 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1271 push(@SysLibrary, '-lsocket', '-lnsl');
1275 # Push the GNU multi-precision arith lib; and the math library
1276 push(@SysLibrary, '-lgmp');
1277 push(@SysLibrary, '-lm');
1280 %************************************************************************
1282 \subsection{Check that this system was built to do what we are asking}
1284 %************************************************************************
1286 Before continuing we check that the appropriate build is available.
1289 #die "$Pgm: no BuildAvail?? $BuildTag\n" if $BuildDescr{$BuildTag} eq '' ; # sanity
1291 if ( $BuildDescr{$BuildTag} eq '' ) {
1292 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1293 "' \"build\" is not available with your GHC setup.\n";
1294 print STDERR "(It was not configured for it at your site.)\n";
1295 print STDERR $ShortUsage;
1299 } # end of setupSyslibs
1303 %************************************************************************
1305 \subsection{Final miscellaneous setup bits before we start going}
1307 %************************************************************************
1309 Record largest specific heapsize, if any.
1311 sub setupHeapStackSize {
1312 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1313 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1314 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1315 push(@HsC_rts_flags, "-K$Specific_stk_size");
1319 If no input or link files seen, then we let 'em feed in stdin; this is
1320 mainly for debugging.
1324 if ($#Input_file < 0 && $#Link_file < 0) {
1325 @Input_file = ( '-' );
1327 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1328 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n" if -t;
1329 while (<STDIN>) { print INF $_; }
1330 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1335 Tell the world who we are, if they asked.
1337 print STDERR "${PROJECTNAME}, version ${PROJECTVERSION}, patchlevel ${PROJECTPATCHLEVEL}\n"
1341 %************************************************************************
1343 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1345 %************************************************************************
1347 Process the input files; don't continue with linking if there are
1348 problems (global variable @$Status@ non-zero).
1350 foreach $ifile (@Input_file) {
1351 &ProcessInputFile($ifile);
1354 if ( $Status > 0 ) { # don't link if there were errors...
1355 print STDERR $ShortUsage;
1360 # append last minute flags linker and consistency flags
1367 Link if appropriate.
1370 local($libdirs) = '';
1372 # glue them together:
1373 push(@UserLibrary_dir, @SysLibrary_dir);
1375 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1377 # for a linker, use an explicitly given one, or the going C compiler ...
1378 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1380 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1381 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1383 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $TopClosureFile $libdirs @UserLibrary @SysLibrary";
1384 &run_something($to_do, 'Linker');
1386 # finally, check the consistency info in the binary
1387 local($executable) = $Files_to_tidy[0];
1388 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1391 # dynamically load consistency-chking code; then do it.
1392 require('ghc-consist.prl')
1393 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1395 &chk_consistency_info ( $executable );
1398 # if PVM parallel stuff, we do truly weird things.
1399 # Essentially: (1) move the executable over to where PVM expects
1400 # to find it. (2) create a script in place of the executable
1401 # which will cause the program to be run, via SysMan.
1402 if ( $PARing eq 'p' ) {
1403 local($pvm_executable) = $executable;
1404 local($pvm_executable_base);
1406 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1407 local($pwd) = `pwd`;
1409 $pwd =~ s/^\/tmp_mnt//;
1410 $pvm_executable = "$pwd/$pvm_executable";
1413 $pvm_executable =~ s|/|=|g; # make /s into =s
1414 $pvm_executable_base = $pvm_executable;
1416 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1417 . "/$pvm_executable";
1419 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1421 # OK, now create the magic script for "$executable"
1422 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1423 print EXEC <<EOSCRIPT1;
1424 eval 'exec perl -S \$0 \${1+"\$@"}'
1425 if \$running_under_some_shell;
1426 # =!=!=!=!=!=!=!=!=!=!=!
1427 # This script is automatically generated: DO NOT EDIT!!!
1428 # Generated by Glasgow Haskell, version ${PROJECTVERSION} ${PROJECTPATCHLEVEL}
1430 \$pvm_executable = '$pvm_executable';
1431 \$pvm_executable_base = '$pvm_executable_base';
1432 \$SysMan = '$SysMan';
1435 print EXEC <<\EOSCRIPT2;
1436 # first, some magical shortcuts to run "commands" on the binary
1438 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1440 system("$cmd $pvm_executable");
1444 # OK, really run it; process the args first
1445 $ENV{'PE'} = $pvm_executable_base;
1447 $nprocessors = 2; # the default
1451 # ToDo: handle --RTS
1452 args: while ($a = shift(@ARGV)) {
1453 if ( $a eq '+RTS' ) {
1455 } elsif ( $a eq '-RTS' ) {
1458 if ( $a eq '-d' && $in_RTS_args ) {
1460 } elsif ( $a =~ /^-N(\d+)/ && $in_RTS_args ) {
1463 push(@nonPVM_args, $a);
1467 local($return_val) = 0;
1468 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
1470 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
1473 close(EXEC) || die "Failed closing $executable\n";
1474 chmod 0755, $executable;
1478 # that... that's all, folks!
1480 exit $Status; # will still be 0 if all went well
1483 %************************************************************************
1485 \section[Driver-do-one-file]{How to process a single input file}
1487 %************************************************************************
1490 sub ProcessInputFile {
1491 local($ifile) = @_; # input file name
1492 local($ifile_root); # root of or basename of input file
1493 local($ofile_target); # ultimate output file we hope to produce
1494 # from input file (need to know for recomp
1495 # checking purposes)
1496 local($hifile_target);# ditto (but .hi file)
1499 Handle the weirdity of input from stdin.
1501 if ($ifile ne '-') {
1502 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1503 $ofile_target = # may be reset later...
1504 ($Specific_output_file ne '' && ! $Do_lnkr)
1505 ? $Specific_output_file
1506 : &odir_ify($ifile_root, 'o');
1507 $hifile_target= ($Specific_hi_file ne '')
1509 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1510 # NB: may change if $ifile_root isn't module name (??)
1512 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1513 $ifile_root = '_stdin';
1514 $ofile_target = '_stdout'; # gratuitous?
1515 $hifile_target= '_stdout'; # ditto?
1519 We need to decide what phases of the compilation system we will run
1520 over this file. The defaults are the ones established when processing
1521 flags. (That established what the last phase run for all files is.)
1523 We do the pre-recompilation-checker phases here; the rest later.
1527 Look at the suffix and decide what initial phases of compilation may
1528 be dropped off for this file. Also the rather boring business of
1529 which files are coming-in/going-out.
1531 Again, we'll do the post-recompilation-checker parts of this later.
1533 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1534 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1537 # names of the files to stuff between phases
1538 # defaults are temporaries
1539 local($in_lit2pgm) = $ifile;
1540 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1541 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1542 local($hsc_hi) = "$Tmp_prefix.hi";
1543 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1544 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1545 local($as_out) = $ofile_target;
1547 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
1549 # OK, let's strip off some literate junk..
1551 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
1553 $lit2pgm_hscpp = $ifile;
1559 # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas
1560 &check_for_source_options($lit2pgm_hscpp,$ifile);
1562 # Options found in the source file take a back seat, i.e., we scan
1563 # them first. Only process the command line again if source file
1564 # contained anything of interest *or* there's more than one
1565 # input file (we have to reset the options).
1567 if ( $#Input_file >= 0 || $#File_options >= 0) {
1568 #@File_options = (@File_options, @Cmd_opts);
1570 # Now process the command line
1571 &initDriverGlobals();
1572 &processArgs((@File_options,@Cmd_opts));
1573 print STDERR "\nEffective command line: " .
1574 join(' ',(@File_options,@Cmd_opts)) . "\n" if $Verbose;
1577 # Having got the effective command line scanned, set up
1578 # the various options in prep for some real work.
1580 # check the sanity of the BuildTag we're about to use,
1581 # and if needs be, add some more flags and setup to
1582 # the different phases.
1585 &setupOptimiseFlags();
1588 &setupWarningFlags();
1589 &setupHeapStackSize();
1592 # These two variables need to be set after the
1593 # command-line has been processed and the build options
1594 # have be seen set up. This is because command-line options
1595 # can control whether to compile vias C or not.
1597 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1599 : ( ($HscOut eq '-C=') ? 1 : 0 );
1600 local($do_as) = $Do_as;
1601 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1603 if ($Only_preprocess_hc) { # stop after having run $Cc -E
1606 if ($Only_preprocess_C) { # stop after having run $hscpp
1607 $do_hsc=0; $do_cc = 0; $do_as=0;
1608 } elsif ($ifile =~ /.lhs$/ || $ifile =~ /.hs$/ ) {
1610 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
1611 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1613 } elsif ($ifile =~ /\.c$/) {
1614 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1615 $hsc_out = $ifile; $is_hc_file = 0;
1616 } elsif ($ifile =~ /\.s$/) {
1617 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
1619 } else { # don't know what it is, but nothing to do herein...
1620 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
1623 # hack to avoid running hscpp
1624 $HsCpp = $Cat if ! $Cpp_flag_set;
1626 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) if $do_hscpp;
1630 We now think about whether to run hsc/cc or not (when hsc produces .s
1631 stuff, it effectively takes the place of both phases).
1633 To get the output file name right: for each phase that we are {\em
1634 not} going to run, set its input (i.e., the output of its preceding
1635 phase) to @"$ifile_root.<suffix>"@.
1638 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
1641 # Warning issued if -keep-hc-file-too is used without
1642 # -fvia-C (or the equivalent)
1644 if ( $HscOut ne '-C=' && $Keep_hc_file_too ) {
1645 print STDERR "$Pgm: warning: Native code generator to be used, -keep-hc-file-too will be ignored\n";
1648 if (! $do_cc && ! $do_as) { # stopping after hsc
1649 $hsc_out = ($Specific_output_file ne '')
1650 ? $Specific_output_file
1651 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
1653 $ofile_target = $hsc_out; # reset
1656 if (! $do_as) { # stopping after gcc (or hsc)
1657 $cc_as = ($Specific_output_file ne '')
1658 ? $Specific_output_file
1659 : &odir_ify($ifile_root, ( $Only_preprocess_hc ) ? 'i' : 's');
1661 $ofile_target = $cc_as; # reset
1667 Now the Haskell compiler, C compiler, and assembler
1671 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
1672 $ofile_target, $hifile_target);
1676 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
1677 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root) if ! $Only_preprocess_hc;
1680 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
1682 # save a copy of the .s file..
1683 &saveIntermediate($ifile_root , "s" , $cc_as) if ($do_as && $Keep_s_file_too);
1684 &runAs($as_out, $ifile_root) if $do_as;
1687 Finally, decide what to queue up for linker input.
1689 # tentatively assume we will eventually produce linker input:
1690 push(@Link_file, &odir_ify($ifile_root, 'o'));
1692 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
1694 if ( $ifile !~ /\.(lhs|hs|hc|c|s)$/ && $ifile !~ /_hc$/ ) {
1695 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n"
1696 if $ifile !~ /\.a$/;
1698 # oops; we tentatively pushed the wrong thing; fix & do the right thing
1699 pop(@Link_file); push(@Link_file, $ifile);
1703 } # end of ProcessInputFile
1706 %************************************************************************
1708 \section[Driver-run-phases]{Routines to run the various phases}
1710 %************************************************************************
1714 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
1718 # Only add #line pragma if we're going to need it.
1719 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && " if ($Cpp_flag_set);
1720 $to_do .= "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
1722 push(@Files_to_tidy, $lit2pgm_hscpp );
1724 &run_something($to_do, 'literate pre-processor');
1730 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
1734 # Strictly speaking, echoing of the following line pragma is only required
1735 # on non-delit'ed input, as we've already added it during de-lit. However,
1736 # hscpp will then add a {-# LINE 1 "$lit2pgm_hsc" -} to the top of the file,
1737 # which is not very informative (but harmless). Hence, we uniformly have
1738 # {-# LINE 1 "$in_lit2pgm" #-} as the first line to all cpp'ed hsc input.
1740 $to_do = "echo '{-# LINE 1 \"$in_lit2pgm\" -}' > $hscpp_hsc && ";
1742 if ($HsCpp eq $Cat) {
1743 $to_do .= "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
1744 push(@Files_to_tidy, $hscpp_hsc );
1745 &run_something($to_do, 'Ineffective C pre-processor');
1747 local($includes) = '-I' . join(' -I',@Include_dir);
1748 $to_do .= "$HsCpp $Verbose $genSPECS_flag @HsCpp_flags -D__HASKELL1__=$Haskell1Version -D__GLASGOW_HASKELL__=$GhcVersionInfo $includes $lit2pgm_hscpp >> $hscpp_hsc";
1749 push(@Files_to_tidy, $hscpp_hsc );
1750 &run_something($to_do, 'Haskellised C pre-processor');
1753 if ( $Only_preprocess_C ) {
1754 $to_do = "$Cat $hscpp_hsc";
1755 &run_something($to_do, '');
1763 sub runHscAndProcessInterfaces {
1764 local($ifile, $hscpp_hsc, $ifile_root, $ofile_target, $hifile_target) = @_;
1766 # $ifile is the original input file
1767 # $hscpp_hsc post-unlit, post-cpp, etc., input file
1768 # $ifile_root input filename minus suffix
1769 # $ofile_target the output file that we ultimately hope to produce
1770 # $hifile_target the .hi file ... (ditto)
1772 local($source_unchanged) = 1;
1774 # Check if the source file is up to date relative to the target; in
1775 # that case we say "source is unchanged" and let the compiler bail out
1776 # early if the import usage information allows it.
1778 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
1779 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
1781 # The informational messages below are now conditional on -v being set -- SOF
1782 if ( $ofile_target ne "_stdin.s" && ! -f $ofile_target ) {
1783 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n" if $Verbose;
1784 $source_unchanged = 0;
1787 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
1788 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
1790 if ( $hifile_target ne "_stdout" && ! -f $hifile_target ) {
1791 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n" if $Verbose;
1792 $source_unchanged = 0;
1795 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
1796 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
1798 if ( $ofile_target ne "_stdin.s" && $i_mtime > $o_mtime) {
1799 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n" if $Verbose;
1800 $source_unchanged = 0;
1803 # So if source_unchanged is still "1", we pass on the good news to the compiler
1804 # The -recomp flag can disable this, forcing recompilation
1805 if ($Do_recomp_chkr && $source_unchanged) {
1806 push(@HsC_flags, '-fsource-unchanged');
1811 &runHsc($ifile_root, $hsc_out, $hsc_hi, $going_interactive);
1813 # See if it bailed out early, saying nothing needed doing.
1814 # We work this out by seeing if it created an output .hi file
1816 if ( ! -f $hsc_hi && $ProduceHi !~ /-nohifile=/ ) {
1817 # Doesn't exist, so we bailed out early.
1818 # Tell the C compiler and assembler not to run
1819 $do_cc = 0; $do_as = 0;
1821 # Update dependency info, touch both object file and
1822 # interface file, so that the following invariant is
1825 # a dependent module's interface file should after recompilation
1826 # checking be newer than the interface files of its imports.
1828 # That is, if module A's interface file changes, then module B
1829 # (which import from A) needs to be checked.
1830 # If A's change does not affect B, which causes the compiler to bail
1831 # out early, we still need to touch the interface file of B. The reason
1832 # for this is that B may export A's interface.
1834 &run_something("touch $ofile_target",
1835 "Touch $ofile_target, to propagate dependencies") if $HscOut ne '-N=';
1836 &run_something("touch $hifile_target",
1837 "Touch $hifile_target, to propagate dependencies") if $ProduceHi =~ /-nohifile=/ ;
1841 # Didn't bail out early (new .hi file) so we thunder on
1843 # If non-interactive, heave in the consistency info at the end
1844 # NB: pretty hackish (depends on how $output is set)
1845 if ( ! $going_interactive ) {
1846 if ( $HscOut eq '-C=' ) {
1847 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
1849 } elsif ( $HscOut eq '-S=' ) {
1850 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
1851 $consist =~ s/,/./g;
1852 $consist =~ s/\//./g;
1853 $consist =~ s/-/_/g;
1854 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
1855 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
1857 &run_something($to_do, 'Pin on Haskell consistency info');
1861 # Interface-handling is important enough to live off by itself
1862 if ( $ProduceHi !~ /-nohifile=/ ) { # If we've produced one, process it.
1863 require('ghc-iface.prl') || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
1864 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
1866 # if we're going to split up object files,
1867 # we inject split markers into the .hc file now
1868 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
1869 &inject_split_markers ( $hsc_out );
1872 # save a copy of the .hc file, even if we are carrying on...
1873 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
1874 &saveIntermediate($ifile_root , "hc" , $hsc_out);
1884 local($ifile_root, $hsc_out, $hsc_hi, $going_interactive) = @_;
1886 # prepend comma to HsP flags (so hsc can tell them apart...)
1887 foreach $a ( @HsP_flags ) { $a = ",$a" unless $a =~ /^,/; }
1889 &makeHiMap() unless $HiMapDone;
1890 #print STDERR "HiIncludes: $HiIncludeString\n";
1891 push(@HsC_flags, "-himap=$HiIncludeString");
1893 # here, we may produce .hc/.s and/or .hi files
1894 local($output) = '';
1895 #@Files_to_tidy = ();
1897 if ( $going_interactive ) {
1898 # don't need .hi unless going to show it on stdout:
1899 $ProduceHi = '-nohifile=' if ! $HiOnStdout;
1900 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
1903 # set up for producing output/.hi; note that flag twiddling
1904 # may mean that nothing will actually be produced:
1905 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out";
1906 push(@Files_to_tidy, $hsc_hi, $hsc_out );
1908 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
1909 if ( $CollectingGCstats ) {
1910 push(@HsC_rts_flags, "-S$ifile_root.stat");
1911 push(@Files_to_tidy, "$ifile_root.stat");
1914 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
1915 # emit nofibbish time/bytes-alloc stats to stderr;
1916 # see later .stat file post-processing
1917 print STDERR "warning: both -Rgc-stats and -Rghc-timing used, -Rghc-timing wins." if $CollectingGCstats;
1918 push(@HsC_rts_flags, "-s$Tmp_prefix.stat");
1919 push(@Files_to_tidy, "$Tmp_prefix.stat");
1923 if ($Specific_dump_file ne '') {
1924 $dump = "2>> $Specific_dump_file";
1925 $Using_dump_file = 1;
1929 $to_do = "$HsC @HsP_flags ,$hscpp_hsc $dump @HsC_flags $CoreLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
1930 &run_something($to_do, 'Haskell compiler');
1932 # finish business w/ nofibbish time/bytes-alloc stats
1933 &process_ghc_timings() if $CollectGhcTimings;
1937 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
1938 of (module-name, pathname) pairs, one per line, separated by a space.
1941 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1945 # collect in %HiMap; write later; also used elsewhere in driver
1947 local($mod, $path, $d, $e);
1949 # reset the global variables:
1951 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1953 foreach $d ( @Import_dir ) {
1954 if ($HiIncludeString) {
1955 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix}";
1957 $HiIncludeString = "$d%.${HiSuffix}";
1962 foreach $d ( @SysImport_dir ) {
1963 if ($HiIncludeString) {
1964 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix_prelude}";
1966 $HiIncludeString = "${d}%.${HiSuffix_prelude}";
1975 %************************************************************************
1977 \section[Driver-misc-utils]{Miscellaneous utilities}
1979 %************************************************************************
1981 %************************************************************************
1983 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
1985 %************************************************************************
1989 local($ofile,$def_suffix) = @_;
1991 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
1995 local($orig_file, $def_suffix) = @_;
1996 if ($Specific_output_dir eq '') { # do nothing
1997 &osuf_ify($orig_file, $def_suffix);
1999 local ($orig_file_only);
2000 ($orig_file_only = $orig_file) =~ s|.*/||;
2001 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
2008 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
2010 local($includes) = '-I' . join(' -I', @Include_dir);
2013 local($c_flags) = "@CcBoth_flags";
2014 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2016 # "input" files to use that are not in some weird directory;
2017 # to help C compilers grok .hc files [ToDo: de-hackify]
2018 local($cc_help) = "ghc$$.c";
2019 local($cc_help_s) = "ghc$$.s";
2022 $s_output = ($is_hc_file || $TargetPlatform =~ /^(powerpc|rs6000|hppa|i386)/) ? $cc_as_o : $cc_as;
2023 $c_flags .= " @CcRegd_flags";
2024 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2026 # C compiler won't like the .hc extension. So we create
2027 # a tmp .c file which #include's the needful.
2028 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2029 if ( $is_hc_file ) {
2031 #ifdef __STG_GCC_REGS__
2032 # if ! (defined(MAIN_REG_MAP) || defined(MARK_REG_MAP) || defined(SCAN_REG_MAP) || defined(SCAV_REG_MAP) || defined(FLUSH_REG_MAP))
2033 # define MAIN_REG_MAP
2036 #include "stgdefs.h"
2038 # user may have asked for #includes to be injected...
2039 print TMP @CcInjects if $#CcInjects >= 0;
2041 # heave in the consistency info
2042 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2044 # and #include the real source
2045 print TMP "#include \"$hsc_out\"\n";
2046 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2048 # Don't redirect stderr into intermediate file if slamming output onto stdout (e.g., with -E)
2049 local($fuse_stderr) = "2>&1" if ! $Only_preprocess_hc;
2050 local($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 )";
2051 # note: __GLASGOW_HASKELL__ is pointedly *not* #defined at the C level.
2053 if ( $Only_preprocess_hc ) { # HACK ALERT!
2054 $to_do =~ s/ -S\b//g;
2056 push(@Files_to_tidy, $cc_help, $cc_help_s, $s_output );
2057 $PostprocessCcOutput = 1 if ! $Only_preprocess_hc; # hack, dear hack...
2058 &run_something($to_do, 'C compiler');
2059 $PostprocessCcOutput = 0;
2060 if ( $Only_preprocess_hc ) {
2061 system("$Cat $Tmp_prefix.ccout");
2063 unlink($cc_help, $cc_help_s);
2069 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2071 if ( $is_hc_file ) {
2072 # dynamically load assembler-fiddling code, which we are about to use:
2073 require('ghc-asm.prl')
2074 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2077 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2080 # post-process the assembler [.hc files only]
2081 &mangle_asm($cc_as_o, $cc_as);
2085 #OLD: local($target) = 'oops';
2086 #OLD: $target = '-alpha' if $TargetPlatform =~ /^alpha-/;
2087 #OLD: $target = '-hppa' if $TargetPlatform =~ /^hppa/;
2088 #OLD: $target = '-old-asm' if $TargetPlatform =~ /^i386-/;
2089 #OLD: $target = '-m68k' if $TargetPlatform =~ /^m68k-/;
2090 #OLD: $target = '-mips' if $TargetPlatform =~ /^mips-/;
2091 #OLD: $target = '' if $TargetPlatform =~ /^powerpc-/;
2092 #OLD: $target = '-solaris' if $TargetPlatform =~ /^sparc-sun-solaris2/;
2093 #OLD: $target = '-sparc' if $TargetPlatform =~ /^sparc-sun-sunos4/;
2095 #OLD: if ( $target ne '' ) {
2096 #OLD: require("ghc-asm$target.prl")
2097 #OLD: || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm$target.prl!\n");
2098 #OLD: &mangle_asm($cc_as_o, "$cc_as-2"); # the OLD one!
2099 #OLD: &run_something("$Cmp -s $cc_as-2 $cc_as || $Diff $cc_as-2 $cc_as 1>&2 || exit 0",
2100 #OLD: "Diff'ing old and new mangled .s files"); # NB: to stderr
2103 } elsif ($TargetPlatform =~ /^hppa/) {
2104 # minor mangling of non-threaded files for hp-pa only
2105 require('ghc-asm.prl')
2106 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2107 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2109 } elsif ($TargetPlatform =~ /^powerpc|^rs6000/) {
2110 # minor mangling of non-threaded files for powerpcs and rs6000s
2111 require('ghc-asm.prl')
2112 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-powerpc.prl!\n");
2113 &mini_mangle_asm_powerpc($cc_as_o, $cc_as);
2114 } elsif ($TargetPlatform =~ /^i386/) {
2115 # extremely-minor OFFENSIVE mangling of non-threaded just one file
2116 require('ghc-asm.prl')
2117 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2118 &mini_mangle_asm_i386($cc_as_o, $cc_as);
2121 # save a copy of the .s file, even if we are carrying on...
2122 #if ($do_as && $Keep_s_file_too) {
2123 # &saveIntermediate($ifile_root , "s" , $cc_as);
2130 local($as_out, $ifile_root) = @_;
2132 local($asmblr) = ( $As ) ? $As : $CcRegd;
2134 if ( ! $SplitObjFiles ) {
2135 local($to_do) = "$asmblr -o $as_out -c @As_flags $cc_as";
2136 push(@Files_to_tidy, $as_out );
2137 &run_something($to_do, 'Unix assembler');
2139 } else { # more complicated split-ification...
2141 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2143 # If -odir is used, great, just pin it in front of the
2144 # generated split file names. If it hasn't been set, we
2145 # snatch it from the ifile_root.
2149 if ( $Specific_output_dir eq '' ) {
2150 $Specific_output_dir = ${ifile_root};
2153 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2154 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2155 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2156 push(@Files_to_tidy, $split_out );
2158 &run_something($to_do, 'Unix assembler');
2164 %************************************************************************
2166 \subsection[Driver-run-something]{@run_something@: Run a phase}
2168 %************************************************************************
2172 local($str_to_do, $tidy_name) = @_;
2174 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2175 print STDERR "$str_to_do\n" if $Verbose;
2177 if ($Using_dump_file) {
2178 open(DUMP, ">> $Specific_dump_file")
2179 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2180 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2182 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2185 local($return_val) = 0;
2187 if ( length($str_to_do) > 4000) {
2188 # 4000 - on the random side, just like the *real* ARG_MAX
2191 # With some shells, command lines of this length may
2192 # very well cause trouble. To safeguard against this, we squirrel the
2193 # command into a file and exec that.
2194 local ($sh) = $ENV{'REAL_SHELL'};
2195 print STDERR "Backup plan A: saving cmd line in ${Tmp_prefix}.sh and executing that with $sh\n" if $Verbose;
2196 open (TEMP, "> ${Tmp_prefix}.sh") ||
2197 &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.sh'\n");
2198 print TEMP "$Time $str_to_do\n";
2200 &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.sh'\n");
2201 system("$sh $Tmp_prefix.sh");
2204 unlink "${Tmp_prefix}.sh";
2206 system("$Time $str_to_do");
2210 if ( $PostprocessCcOutput ) { # hack, continued
2211 open(CCOUT, "< $Tmp_prefix.ccout")
2212 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2214 next if /attribute directive ignored/;
2215 next if /call-clobbered/;
2216 next if /from .*COptRegs\.lh/;
2217 next if /from .*(stg|rts)defs\.h:/;
2218 next if /from ghc\d+.c:\d+:/;
2219 next if /from .*\.lc/;
2220 next if /from .*SMinternal\.l?h/;
2221 next if /ANSI C does not support \`long long\'/;
2222 next if /warning:.*was declared \`extern\' and later \`static\'/;
2223 next if /warning: assignment discards \`const\' from pointer target type/;
2224 next if /: At top level:$/;
2225 next if /: In function \`.*\':$/;
2226 next if /\`ghc_cc_ID\' defined but not used/;
2229 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2232 if ($return_val != 0) {
2233 if ($Using_dump_file) {
2234 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2237 &tidy_up_and_die($return_val, '');
2239 $Using_dump_file = 0;
2243 %************************************************************************
2245 \subsection[Driver-ghc-timing]{Emit nofibbish GHC timings}
2247 %************************************************************************
2249 NB: nearly the same as in @runstdtest@ script.
2252 sub process_ghc_timings {
2253 local($StatsFile) = "$Tmp_prefix.stat";
2254 local($SysSpecificTiming) = 'ghc';
2256 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2257 local($max_live) = 0;
2258 local($tot_live) = 0; # for calculating residency stuff
2259 local($tot_samples) = 0;
2262 if (! /Minor/ && /^\s*\d+\s+\d+\s+(\d+)\s+\d+\.\d+\%/ ) {
2263 $max_live = $1 if $max_live < $1;
2267 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2269 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2270 $MaxResidency = $1; $ResidencySamples = $2;
2273 $GCs = $1 if /^\s*([0-9,]+) garbage collections? performed/;
2275 # The presence of -? in the following pattern is only there to
2276 # accommodate 0.29 && <= 2.05 RTS'
2277 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*-?(\d+\.\d\d)s elapsed\)/ ) {
2278 $InitTime = $1; $InitElapsed = $2;
2279 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2280 $MutTime = $1; $MutElapsed = $2;
2281 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2282 $GcTime = $1; $GcElapsed = $2;
2285 close(STATS) || die "Failed when closing $StatsFile\n";
2286 if ( $tot_samples > 0 ) {
2287 $ResidencySamples = $tot_samples;
2288 $MaxResidency = $max_live;
2289 $AvgResidency = int ($tot_live / $tot_samples) ;
2292 # warn about what we didn't find
2293 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2294 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2295 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2296 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2297 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2298 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2299 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2300 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2302 # things we didn't necessarily expect to find
2303 $MaxResidency = 0 unless defined($MaxResidency);
2304 $AvgResidency = 0 unless defined($AvgResidency);
2305 $ResidencySamples = 0 unless defined($ResidencySamples);
2308 $BytesAlloc =~ s/,//g;
2309 $MaxResidency =~ s/,//g;
2311 $InitTime =~ s/,//g;
2312 $InitElapsed =~ s/,//g;
2314 $MutElapsed =~ s/,//g;
2316 $GcElapsed =~ s/,//g;
2318 # print out what we found
2319 print STDERR "<<$SysSpecificTiming: ",
2320 "$BytesAlloc bytes, $GCs GCs, $AvgResidency/$MaxResidency avg/max bytes residency ($ResidencySamples samples), $InitTime INIT ($InitElapsed elapsed), $MutTime MUT ($MutElapsed elapsed), $GcTime GC ($GcElapsed elapsed)",
2321 " :$SysSpecificTiming>>\n";
2328 %************************************************************************
2330 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2332 %************************************************************************
2336 local($to_do) = "\n$Rm $Tmp_prefix*";
2337 if ( $Tmp_prefix !~ /^\s*$/ ) {
2338 print STDERR "$to_do\n" if $Verbose;
2343 sub tidy_up_and_die {
2344 local($return_val, $msg) = @_;
2346 # delete any files to tidy
2347 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2348 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2352 exit (($return_val == 0) ? 0 : 1);
2356 %************************************************************************
2358 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2360 %************************************************************************
2362 Some command-line arguments take an argument, e.g.,
2363 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2364 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2365 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2367 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2368 gobble the second argument (and probably set the heapsize to something
2372 local(*Args, $option, $rest_of_arg) = @_;
2374 if ($rest_of_arg ne '') {
2375 return($rest_of_arg);
2376 } elsif ($#Args >= 0) {
2377 local($temp) = $Args[0]; shift(@Args);
2380 print STDERR "$Pgm: no argument following $option option\n";
2391 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2393 foreach $f ( @HsC_antiflags ) {
2394 return(0) if $flag eq $f;
2396 # foreach $f ( @HsC_flags ) {
2397 # return(0) if $flag eq $f;
2402 sub squashHscFlag { # pretty terrible
2406 foreach $f ( @HsC_flags ) {
2407 if ($flag eq $f) { $f = ''; }
2415 foreach $f ( @flags ) {
2416 push( @HsC_flags, $f ) if &isntAntiFlag($f);
2421 Source files may have {-# OPTIONS ... #-} pragmas at the top, containing
2422 command line options we want to append to collection of commands specified
2423 directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell
2424 file for any such pragmas:
2427 sub check_for_source_options {
2428 local($file,$ifile) = @_;
2429 local($comment_start,$comment_end);
2431 if ($ifile =~ /\.hc$/ ||
2434 $ifile =~ /_s$/ ) { # `Real' C intermediate
2435 $comment_start = "/\\*";
2436 $comment_end = "\\*/";
2437 } else { # Assume it is a file containing Haskell source
2438 $comment_start = "{-#";
2439 $comment_end = "#-}";
2442 open(FILE,$file) || return(1); # No big loss
2445 if ( /^${comment_start} OPTIONS (.*)${comment_end}$/ ) {
2446 # add the options found at the back of the command line.
2447 local(@entries) = split(/\s+/,$1);
2448 print STDERR "Found OPTIONS " . join(' ',@entries) . " in $file\n" if $Verbose;
2449 push(@File_options, @entries);
2451 elsif ( /^$/ ) { # ignore empty lines
2454 elsif ( /^#line.+$/ ) { # ignore comment lines (unused..ToDo: rm )
2457 elsif ( /^{-# LINE.+$/ ) { # ignore line pragmas
2460 else { # stop looking, something non-empty / not
2461 # ${comment_start} OPTIONS .. ${comment_end} encountered.
2462 close(FILE);return(0);
2471 We split the initial argv up into three arrays:
2477 the reason for doing so is to be able to deal
2478 with {-# OPTIONS #-} pragma in source files properly.
2484 arg: while($_ = $args[0]) {
2486 # sigh, we have to deal with these -option arg specially here.
2487 /^-(tmpdir|odir|ohi|o|isuf|osuf|hisuf|hisuf-prelude|odump|syslib)$/ &&
2488 do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; };
2489 /^--?./ && do { push(@Cmd_opts, $_); next arg; };
2491 if (/\.([^_]+_)?[oa]$/) {
2492 push(@Link_file, $_);
2494 push(@Input_file, $_);
2497 # input files must exist:
2499 print STDERR "$Pgm: input file doesn't exist: $_\n";
2507 When saving an intermediate file (.hc or .s) away, we
2508 have to prefix any OPTIONS found in the original source file.
2511 sub saveIntermediate {
2512 local ($final,$suffix,$tmp)= @_ ;
2515 # $final -- root of where to park ${final}.${suffix}
2516 # $tmp -- temporary file where hsc put the intermediate file.
2518 # Delete the old file
2519 $to_do = "$Rm ${final}.${suffix}"; &run_something($to_do, "Removing old .${suffix} file");
2521 if ( $#File_options >= 0 ) { # OPTIONS found in Haskell source unit
2522 # Add OPTION comment to the top of the generated .${suffix} file
2523 open(TEMP, "> ${final}.${suffix}") || &tidy_up_and_die(1,"Can't open ${final}.${suffix}\n");
2524 print TEMP "/* OPTIONS " . join(' ',@File_options) . " */\n";
2526 print STDERR "Prepending OPTIONS: " . join(' ',@File_options) . " to ${final}.${suffix}\n" if $Verbose;
2528 $to_do = "$Cat $tmp >> ${final}.${suffix}";
2529 &run_something($to_do, "Saving copy of .${suffix} file");
2536 Command-line processor
2542 # can't use getopt(s); what we want is too complicated
2544 arg: while($_ = $Args[0]) {
2547 #---------- help -------------------------------------------------------
2548 if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; }
2550 #-----------version ----------------------------------------------------
2551 /^--version$/ && do { print STDERR "${PROJECTNAME}, version ${PROJECTVERSION}, patchlevel ${PROJECTPATCHLEVEL}\n"; exit $Status; };
2553 #---------- verbosity and such -----------------------------------------
2554 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
2556 #---------- what phases are to be run ----------------------------------
2557 /^-(no-)?recomp/ && do { $Do_recomp_chkr = ($1 eq '') ? 1 : 0; next arg; };
2559 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
2560 # change the global default:
2561 # we won't run cat; we'll run the real thing
2563 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
2565 # stop after generating C
2567 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
2568 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
2570 # leave out actual C generation (debugging) [also turns off interface gen]
2572 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
2573 # _do_ generate an interface; usually used as: -noC -hi
2575 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
2576 # don't generate an interface (even if generating C)
2578 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
2579 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
2580 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
2581 /^-keep-hi-diffs$/ && do { $Keep_HiDiffs = 1; next arg; };
2583 # show/disable diffs if the interface file changes
2585 /^-E$/ && do { push(@CcBoth_flags, '-E');
2586 $Only_preprocess_C = 1;
2587 $Do_as = 0; $Do_lnkr = 0; next arg; };
2588 # stop after preprocessing C
2589 /^-M$/ && do { $Only_generate_deps = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2590 # only generate dependency information.
2591 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
2592 # stop after generating assembler
2594 /^-c$/ && do { $Do_lnkr = 0; next arg; };
2595 # stop after generating .o files
2597 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
2598 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
2599 # don't do consistency-checking after a link
2601 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', '');
2602 $Tmp_prefix = "$Tmp_prefix/ghc$$";
2603 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
2605 # use an alternate directory for temp files
2607 #---------- redirect output --------------------------------------------
2609 # -o <file>; applies to the last phase, whatever it is
2610 # "-o -" sends it to stdout
2611 # if <file> has a directory component, that dir must already exist
2613 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', '');
2615 # Hack, of the worst sort: don't do validation of
2616 # odir argument if you're using -M (dependency generation).
2618 if ( ! $Only_generate_deps && ! -d $Specific_output_dir) {
2619 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
2624 /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', '');
2625 if ($Specific_output_file ne '-'
2626 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
2627 local($dir_part) = $1;
2628 if (! -d $dir_part) {
2629 print STDERR "$Pgm: no such directory: $dir_part\n";
2635 # NB: -isuf not documented yet (because it doesn't work yet)
2636 /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', '');
2637 if ($Isuffix =~ /\./ ) {
2638 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
2643 /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', '');
2644 if ($Osuffix =~ /\./ ) {
2645 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
2650 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
2651 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', '');
2652 if ($Specific_hi_file ne '-'
2653 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
2654 local($dir_part) = $1;
2655 if (! -d $dir_part) {
2656 print STDERR "$Pgm: no such directory: $dir_part\n";
2662 # The suffix to use when looking for interface files
2663 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', '');
2664 if ($HiSuffix =~ /\./ ) {
2665 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
2669 # ToDo: remove, not a `normal' user thing to do (should be automatic)
2670 /^-hisuf-prelude$/ && do { $HiSuffix_prelude = &grab_arg_arg(*Args,'-hisuf-prelude', '');
2671 if ($HiSuffix =~ /\./ ) {
2672 print STDERR "$Pgm: -hisuf-prelude suffix shouldn't contain a .\n";
2676 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', '');
2677 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
2678 local($dir_part) = $1;
2679 if (! -d $dir_part) {
2680 print STDERR "$Pgm: no such directory: $dir_part\n";
2686 #-------------- scc & Profiling Stuff ----------------------------------
2688 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
2691 # generate auto SCCs on top level bindings
2692 # -auto-all = all top level bindings
2693 # -auto = only top level exported bindings
2694 $PROFauto = ( /-all/ )
2695 ? '-fauto-sccs-on-all-toplevs'
2696 : '-fauto-sccs-on-exported-toplevs';
2699 /^-caf-all/ && do { # generate individual CAF SCC annotations
2700 $PROFcaf = '-fauto-sccs-on-individual-cafs';
2703 /^-ignore-scc$/ && do {
2704 # forces ignore of scc annotations even if profiling
2705 $PROFignore_scc = '-W';
2708 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
2711 /^-unprof-scc-auto/ && do {
2712 # generate auto SCCs on top level bindings when not profiling.
2713 # Used to measure optimisation effects of presence of sccs.
2714 $UNPROFscc_auto = ( /-all/ )
2715 ? '-fauto-sccs-on-all-toplevs'
2716 : '-fauto-sccs-on-exported-toplevs';
2719 #--------- ticky/concurrent/parallel -----------------------------------
2720 # we sort out the details a bit later on
2722 /^-concurrent$/ && do { $CONCURing = 'c'; next arg; }; # concurrent Haskell
2723 /^-gransim$/ && do { $GRANing = 'g'; next arg; }; # GranSim
2724 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
2725 /^-parallel$/ && do { $PARing = 'p'; next arg; }; # parallel Haskell
2727 #-------------- "user ways" --------------------------------------------
2729 (/^-user-setup-([a-oA-Z])$/ ) &&
2731 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
2733 local($stuff) = $UserSetupOpts{$BuildTag};
2734 local(@opts) = split(/\s+/, $stuff);
2736 # feed relevant ops into the arg-processing loop (if any)
2737 unshift(@Args, @opts) if $#opts >= 0;
2741 #---------- set search paths for libraries and things ------------------
2743 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
2744 # prepends the items to the list); -I is for including C .h files.
2746 /^-i$/ && do { @Import_dir = (); # import path cleared!
2747 @SysImport_dir = ();
2748 print STDERR "WARNING: import paths cleared by `-i'\n";
2751 /^-i(.*)/ && do { local(@new_items)
2752 = split( /:/, &grab_arg_arg(*Args,'-i', $1));
2753 unshift(@Import_dir, @new_items);
2756 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; };
2757 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; };
2758 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; };
2760 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1);
2761 print STDERR "$Pgm: no such system library (-syslib): $syslib\n",
2762 $Status++ unless $syslib =~ /^(hbc|ghc|posix|contrib)$/;
2766 # The posix library is a `special' in that it relies on
2767 # the ghc system library (packed strings). Wielding our
2768 # sledgehammer, the problem is solved by silently including
2769 # the ghc system library as well.
2770 # (ToDo: `nub' -syslib list)
2772 unshift(@SysImport_dir,
2774 ? "$InstSysLibDir/$syslib/imports"
2775 : "$TopPwd/hslibs/$syslib/src");
2777 push(@SysLibrary_dir,
2779 ? ("$InstSysLibDir")
2780 : ("$TopPwd/hslibs/$syslib"
2781 ,"$TopPwd/hslibs/$syslib/cbits"));
2783 push(@SysLibrary, "-lHS$syslib");
2784 push(@SysLibrary, "-lHS${syslib}_cbits")
2785 unless $syslib eq 'contrib'; #HACK! it has no cbits
2787 if ( $syslib eq 'posix') {
2793 #=======================================================================
2794 # various flags that we can harmlessly send to one program or another
2795 # (we will later "reclaim" some of the compiler ones now sent to gcc)
2796 #=======================================================================
2798 #---------- this driver itself (ghc) -----------------------------------
2799 # these change what executable is run for each phase:
2800 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
2801 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
2802 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
2803 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
2804 /^-pgma(.*)$/ && do { $As = $1; next arg; };
2805 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
2806 /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; };
2808 #---------- the get-anything-through opts (all pgms) -------------------
2809 # these allow arbitrary option-strings to go to any phase:
2810 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
2811 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
2812 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
2813 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
2814 /^-optcpp(.*)$/ && do { push(@Cpp_define, $1); $Only_preprocess_hc = ($1 eq "-E"); next arg; };
2815 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
2816 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
2817 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
2818 /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; };
2820 #---------- Haskell C pre-processor (hscpp) ----------------------------
2821 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; };
2822 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; };
2824 /^-genSPECS/ && do { $Cpp_flag_set = 1;
2825 $genSPECS_flag = $_;
2828 #---------- post-Haskell "assembler"------------------------------------
2829 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
2830 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
2832 #---------- Haskell compiler (hsc) -------------------------------------
2834 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
2835 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
2837 /^-fhaskell-1\.3$/ && do { next arg; }; # a no-op right now
2839 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
2841 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
2842 # don't do stack checking using page fault `trick'.
2844 /^-fstack-check$/ && do { $StkChkByPageFaultOK = 0; next arg; };
2846 # have the compiler proper generate concurrent code,
2847 # really only used when you want to configure your own
2848 # special user compilation way. (Use -concurrent when
2849 # compiling `Concurrent Haskell' programs).
2851 # (ditto for -fgransim, fscc-profiling and -fticky-ticky)
2853 /^-fconcurrent$/ && do { push(@HsC_flags,$_); next arg; };
2854 /^-fscc-profiling$/ && do { push(@HsC_flags,$_); next arg; };
2855 /^-fticky-ticky$/ && do { push(@HsC_flags,$_); next arg; };
2856 /^-fgransim$/ && do { push(@HsC_flags,$_); next arg; };
2858 /^-split-objs/ && do {
2859 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|rs6000|sparc)-/ ) {
2861 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
2866 push(@HsC_flags, "-fglobalise-toplev-names");
2867 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
2869 require('ghc-split.prl')
2870 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
2875 && do { push(@HsC_flags, $_);
2876 push(@HsP_flags, '-N');
2878 # push(@HsC_flags, '-fshow-import-specs');
2882 /^-fspeciali[sz]e-unboxed$/
2883 && do { $Oopt_DoSpecialise = '-fspecialise';
2884 $Oopt_SpecialiseUnboxed = '-fspecialise-unboxed';
2887 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
2888 /^-fno-speciali[sz]e$/
2889 && do { $Oopt_DoSpecialise = ''; next arg; };
2892 # Now the foldr/build options, which are *on* by default (for -O).
2895 && do { $Oopt_FoldrBuild = 1;
2896 $Oopt_FB_Support = '-fdo-arity-expand';
2900 /^-fno-foldr-build$/
2901 && do { $Oopt_FoldrBuild = 0;
2902 $Oopt_FB_Support = '';
2905 /^-fno-foldr-build-rule$/
2906 && do { $Oopt_FoldrBuild = 0;
2909 /^-fno-enable-tech$/
2910 && do { $Oopt_FB_Support = '';
2913 /^-fno-snapback-to-append$/
2914 && do { $Oopt_FoldrBuildInline .= ' -fdo-not-fold-back-append ';
2917 # --------------- Renamer -------------
2920 /^-fno-prune-tydecls$/ && do { push(@HsC_flags, $_); next arg; };
2921 /^-fno-prune-instdecls$/ && do { push(@HsC_flags, $_); next arg; };
2925 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
2926 /^-fvia-[cC]$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
2930 /^(-funfolding-use-threshold)(.*)$/
2931 && do { $Oopt_UnfoldingUseThreshold = $1 . &grab_arg_arg(*Args,$1, $2);
2934 /^(-fmax-simplifier-iterations)(.*)$/
2935 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2);
2937 /^(-fshow-simplifier-progress)/
2938 && do { $Oopt_ShowSimplifierProgress = $1;
2941 /^-fno-pedantic-bottoms$/
2942 && do { $Oopt_PedanticBottoms = ''; next arg; };
2944 /^-fdo-monad-eta-expansion$/
2945 && do { $Oopt_MonadEtaExpansion = $_; next arg; };
2947 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
2948 && do { push(@HsC_flags, $_); next arg; };
2950 /^(-freturn-in-regs-threshold)(.*)$/
2951 && do { local($what) = $1;
2952 local($num) = &grab_arg_arg(*Args,$what, $2);
2953 if ($num < 2 || $num > 8) {
2954 die "Bad experimental flag: $_\n";
2956 $HscOut = '-C='; # force using C compiler
2957 push(@HsC_flags, "$what$num");
2958 push(@CcRegd_flags, "-D__STG_REGS_AVAIL__=$num");
2962 # --------------- Warnings etc. ------
2964 /^-fshow-import-specs/
2965 && do { push(@HsC_flags, $_); next arg; };
2967 /^-fwarn-(.*)$/ && do { push(@HsC_flags, $_); next arg; };
2969 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
2970 &squashHscFlag("-f$1");
2973 /^-W$/ && do { push(@HsC_flags, @MinusWOpts); next arg; };
2974 /^-Wall$/ && do { push(@HsC_flags, @MinusWallOpts); next arg; };
2975 /^-Wnot$/ && do { foreach (@Hsc_flags) {
2976 /^-fwarn-(.*)$/ && do { $_=''; };
2978 push(@HsC_antiflags, @StandardWarnings);
2981 # --------------- platform specific flags (for gcc mostly) ----------------
2983 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes,
2984 # for 2.6.x..?, does not apply for 2.7.2
2986 unshift(@CcBoth_flags, ( $_ ));
2989 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
2990 && do { # for GCC for SPARCs
2991 unshift(@CcBoth_flags, ( $_ ));
2994 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
2995 $StolenX86Regs = $1;
2998 #*************** ... and lots of debugging ones (form: -d* )
3000 # -d(no-)core-lint is done this way so it is turn-off-able.
3001 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
3002 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
3003 # Ditto for STG lint
3004 /^-dstg-lint/ && do { $StgLint = '-dstg-lint'; next arg; };
3005 /^-dno-stg-lint/ && do { $StgLint = ''; next arg; };
3007 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
3008 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
3009 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
3010 /^-dshow-rn-stats/ && do { push(@HsC_flags, $_); next arg; };
3011 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
3012 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
3013 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
3014 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
3016 #*************** ... and now all these -R* ones for its runtime system...
3018 /^-Rscale-sizes?(.*)/ && do {
3019 $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1);
3022 /^(-H|-Rmax-heapsize)(.*)/ && do {
3023 local($heap_size) = &grab_arg_arg(*Args,$1, $2);
3024 if ($heap_size =~ /(\d+)[Kk]$/) {
3025 $heap_size = $1 * 1000;
3026 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
3027 $heap_size = $1 * 1000 * 1000;
3028 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
3029 $heap_size = $1 * 1000 * 1000 * 1000;
3031 if ($heap_size <= 0) {
3032 print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n";
3033 $Specific_heap_size = 0;
3035 # if several heap sizes given, take the largest...
3036 } elsif ($heap_size >= $Specific_heap_size) {
3037 $Specific_heap_size = $heap_size;
3039 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n";
3043 /^(-K|Rmax-(stk|stack)size)(.*)/ && do {
3045 local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3);
3046 if ($stk_size =~ /(\d+)[Kk]$/) {
3047 $stk_size = $1 * 1000;
3048 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
3049 $stk_size = $1 * 1000 * 1000;
3050 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
3051 $stk_size = $1 * 1000 * 1000 * 1000;
3053 if ($stk_size <= 0) {
3054 print STDERR "$Pgm: resetting stack-size to zero!!! $stk_size\n";
3055 $Specific_stk_size = 0;
3057 # if several stack sizes given, take the largest...
3058 } elsif ($stk_size >= $Specific_stk_size) {
3059 $Specific_stk_size = $stk_size;
3061 print STDERR "$Pgm: ignoring stack-size-setting option ($flag $stk_size)...not the largest seen\n";
3065 /^-Rgc-stats$/ && do { $CollectingGCstats++;
3066 # the two RTSs do this diff ways; we will try to compensate
3069 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
3071 #---------- C high-level assembler (gcc) -------------------------------
3072 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
3074 # -dgcc-lint is a useful way of making GCC very fussy.
3075 # From alan@spri.levels.unisa.edu.au (Alan Modra).
3076 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
3077 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
3078 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
3080 # inject "#include <wurble>" into the compiler's C output!
3082 /^-#include(.*)/ && do {
3083 local($to_include) = &grab_arg_arg(*Args,'-#include', $1);
3084 push(@CcInjects, "#include $to_include\n");
3087 #---------- Linker (gcc, really) ---------------------------------------
3089 /^-static$/ && do { push(@Ld_flags, $_); next arg; };
3091 #---------- mixed cc and linker magic ----------------------------------
3092 # this optimisation stuff is finally sorted out later on...
3094 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
3096 /^-O[1-2]?$/ && do {
3097 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
3098 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
3100 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
3103 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
3105 /^-Ofile(.*)/ && do {
3107 local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1);
3108 @HsC_minusO3_flags = ();
3110 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
3113 s/\#.*//; # death to comments
3114 s/[ \t]+//g; # death to whitespace
3115 next if /^$/; # ditto, blank lines
3116 s/([()*{}])/\\$1/g; # protect shell metacharacters
3118 push(@CcBoth_flags, $1);
3120 push(@HsC_minusO3_flags, $_);
3126 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
3127 # in the consistency info
3131 #---------- linking .a file --------------------------------------------
3133 /^-Main(.*)/ && do {
3134 # specifies main or mainPrimIO to be linked
3138 #---------- catch unrecognized flags -----------------------------------
3141 print STDERR "$Pgm: unrecognised option: $_\n";
3147 } # end of processArgs