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 } # end of setupOptFlags
239 # Assign defaults to these right away.
243 Things to do with C compilers/etc:
245 $CcRegd = $GHC_OPT_HILEV_ASM;
246 @CcBoth_flags = ('-S'); # flags for *any* C compilation
250 # those for all files,
251 # those only for .c files;
252 # those only for .hc files
254 @CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__');
255 @CcRegd_flags_c = ();
256 @CcRegd_flags_hc = ();
258 $As = ''; # "assembler" is normally GCC
261 $Lnkr = ''; # "linker" is normally GCC
264 # 'nm' is used for consistency checking (ToDo: mk-world-ify)
265 # ToDo: check the OS or something ("alpha" is surely not the crucial question)
266 $Nm = ($TargetPlatform =~ /^alpha-/) ? 'nm -B' : 'nm';
269 What options \tr{-user-setup-a} turn into (user-defined ``packages''
270 of options). Note that a particular user-setup implies a particular
271 Prelude ({\em including} its interface file(s)).
273 $BuildTag = ''; # default is sequential build w/ Appel-style GC
275 %BuildDescr = (# system ways begin
276 '', 'normal sequential',
280 '_mc', "$WAY_mc_NAME",
281 '_mr', "$WAY_mr_NAME",
282 '_mt', "$WAY_mt_NAME",
283 '_mp', "$WAY_mp_NAME",
284 '_mg', "$WAY_mg_NAME",
285 '_2s', "$WAY_2s_NAME",
286 '_1s', "$WAY_1s_NAME",
287 '_du', "$WAY_du_NAME",
305 '_B', "$WAY_B_NAME" );
307 # these are options that are "fed back" through the option processing loop
311 '_a', "$WAY_a_HC_OPTS",
312 '_b', "$WAY_b_HC_OPTS",
313 '_c', "$WAY_c_HC_OPTS",
314 '_d', "$WAY_d_HC_OPTS",
315 '_e', "$WAY_e_HC_OPTS",
316 '_f', "$WAY_f_HC_OPTS",
317 '_g', "$WAY_g_HC_OPTS",
318 '_h', "$WAY_h_HC_OPTS",
319 '_i', "$WAY_i_HC_OPTS",
320 '_j', "$WAY_j_HC_OPTS",
321 '_k', "$WAY_k_HC_OPTS",
322 '_l', "$WAY_l_HC_OPTS",
323 '_m', "$WAY_m_HC_OPTS",
324 '_n', "$WAY_n_HC_OPTS",
325 '_o', "$WAY_o_HC_OPTS",
326 '_A', "$WAY_A_HC_OPTS",
327 '_B', "$WAY_B_HC_OPTS",
330 '_p', "$WAY_p_HC_OPTS",
331 '_t', "$WAY_t_HC_OPTS",
332 '_u', "$WAY_u_HC_OPTS",
333 '_mc', "$WAY_mc_HC_OPTS",
334 '_mr', "$WAY_mr_HC_OPTS",
335 '_mt', "$WAY_mt_HC_OPTS",
336 '_mp', "$WAY_mp_HC_OPTS",
337 '_mg', "$WAY_mg_HC_OPTS",
338 '_2s', "$WAY_2s_HC_OPTS",
339 '_1s', "$WAY_1s_HC_OPTS",
340 '_du', "$WAY_B_HC_OPTS" );
344 Import/include directories (\tr{-I} options) are sufficiently weird to
345 require special handling.
348 @Import_dir = ('.'); #-i things
349 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
351 # where to look for interface files (system hi's, i.e., prelude and hslibs)
352 @SysImport_dir = ( $INSTALLING )
353 ? ( "$InstLibDirGhc/imports" )
354 : ( "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/required"
355 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/ghc"
356 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/glaExts"
357 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent" );
359 # We need to look in ghc/ and glaExts/ when searching for implicitly needed .hi files, but
360 # we should really *not* look there for explicitly imported modules.
362 $GhcVersionInfo = int ($PROJECTVERSION * 100);
363 $Haskell1Version = 4; # i.e., Haskell 1.4
366 @UserLibrary_dir= (); #-L things;...
367 @UserLibrary = (); #-l things asked for by the user
369 @SysLibrary_dir = ( ( $INSTALLING ) #-syslib things supplied by the system
371 : ( "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR"
372 , "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/gmp"
373 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR"
374 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/cbits"
377 @SysLibrary = (); # will be built up as we go along
379 $TopClosureFile # defaults to 1.2 one; will be mangled later
380 = ( $INSTALLING) ? "$InstLibDirGhc/TopClosureXXXX.o"
381 : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/main/TopClosureXXXX.o";
383 # make depend for Haskell
385 = ( $INSTALLING ) ? "$InstBinDirGhc/mkdependHS"
386 : "$TopPwd/$CURRENT_DIR/$GHC_UTILS_DIR/mkdependHS/mkdependHS";
388 @MkDependHS_flags = ();
390 # do_link flag should not be reset while rescanning the cmd-line.
392 $Specific_output_dir = ''; # set by -odir <dir>
393 $Specific_output_file = ''; # set by -o <file>; "-" for stdout
396 Function to initialise the per-compilation-unit globals that
397 are used to guide and control the invocation of the different phases.
400 sub initDriverGlobals {
402 # reset the following options:
403 # RTS flags to use while compiling
405 @HsP_flags = (); # these are the flags destined solely for
406 # the flex/yacc parser
411 The optimisations/etc to be done by the compiler are {\em normally}
412 expressed with a \tr{-O} (or \tr{-O2}) flag, or by its absence.
415 $OptLevel = 0; # no -O == 0; -O == 1; -O2 == 2; -Ofile == 3
416 $MinusO2ForC = 0; # set to 1 if -O2 should be given to C compiler
417 $StolenX86Regs = 4; # **HACK*** of the very worst sort
421 @CcBoth_flags = ('-S'); # flags for *any* C compilation
424 # GCC flags: those for all files, those only for .c files; those only for .hc files
425 @CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__');
426 @CcRegd_flags_c = ();
427 @CcRegd_flags_hc = ();
429 @Import_dir = ('.'); #-i things
430 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
435 We are given a list of files with various presumably-known suffixes
436 (unknown-suffix files go straight to the linker). For each file, we
437 begin by assuming that we'll run every phase over it. However: (1)
438 global flags (\tr{-c}, \tr{-S}, etc.) tell us not to run any phase
439 past a certain point; and (2) the file's suffix tells us what phase to
440 start with. Linking is weird and kept track of separately.
442 Here are the initial defaults applied to all files:
444 $Cpp_flag_set = 0; # (hack)
445 $Only_preprocess_C = 0; # pretty hackish
446 $Only_preprocess_hc = 0; # ditto
447 $Only_generate_deps = 0; # "
448 $PostprocessCcOutput = 0;
450 # native code-gen or via C?
451 $HaveNativeCodeGen = $GhcWithNativeCodeGen;
452 $HscOut = '-C='; # '-C=' ==> .hc output; '-S=' ==> .s output; '-N=' ==> neither
454 if $HaveNativeCodeGen && $TargetPlatform =~ /^(alpha|sparc)-/;
455 # TEMP: disable x86 if $HaveNativeCodeGen && $TargetPlatform =~ /^(i386|alpha|sparc)-/;
456 $ProduceHi = '-hifile=';
460 $CollectingGCstats = 0;
461 $CollectGhcTimings = 0;
462 $DEBUGging = ''; # -DDEBUG and all that it entails (um... not really)
463 $PROFing = ''; # set to p or e if profiling
464 $PROFgroup = ''; # set to group if an explicit -Ggroup specified
465 $PROFauto = ''; # set to relevant hsc flag if -auto or -auto-all
466 $PROFcaf = ''; # set to relevant hsc flag if -caf-all
467 $PROFignore_scc = ''; # set to relevant parser flag if explicit sccs ignored
468 $UNPROFscc_auto = ''; # set to relevant hsc flag if forcing auto sccs without profiling
469 $TICKYing = ''; # set to t if compiling for ticky-ticky profiling
470 $PARing = ''; # set to p if compiling for PAR
471 $CONCURing = ''; # set to c if compiling for CONCURRENT
472 $GRANing = ''; # set to g if compiling for GRAN
473 $StkChkByPageFaultOK = 1; # may be set to 0 (false) for some builds
474 $Specific_hi_file = ''; # set by -ohi <file>; "-" for stdout
475 $Specific_dump_file = ''; # set by -odump <file>; "-" for stdout
476 $Using_dump_file = 0;
478 $Osuffix = ''; # default: use the normal suffix for that kind of output
480 $HiSuffix_prelude = '';
481 $Do_recomp_chkr = 0; # don't use the recompilatio checker unless asked
482 $Do_cc = -1; # a MAGIC indeterminate value; will be set to 1 or 0.
485 $Keep_hc_file_too = 0;
486 $Keep_s_file_too = 0;
487 $UseGhcInternals = 0; # if 1, may use GHC* modules
490 $Dump_parser_output = 0;
492 $Dump_asm_splitting_info = 0;
493 $NoImplicitPrelude = 0;
496 } # end of initDriverGlobals (Sigh)
498 # we split the argv passed to the driver into three:
503 # and files to be linked...
509 # cmd line options prefixing the unit we're compiling
514 We inject consistency-checking information into \tr{.hc} files (both
515 when created by the Haskell compiler and when compiled by the C
516 compiler), so that we can check that an executable is made from
517 consistently-built pieces. (The check is normally done just after
518 linking.) The checking is done by introducing/munging
519 \tr{what(1)}-style strings. Anyway, here are the relevant global
520 variables and their defaults:
522 $LinkChk = 1; # set to 0 if the link check should *not* be done
524 # major & minor version numbers; major numbers must always agree;
525 # minor disagreements yield a warning.
526 $HsC_major_version = 33;
527 $HsC_minor_version = 0;
528 $Cc_major_version = 36;
529 $Cc_minor_version = 1;
531 # options: these must always agree
532 $HsC_consist_options = ''; # we record, in this order:
533 # Build tag; debugging?
534 $Cc_consist_options = ''; # we record, in this order:
535 # Build tag; debugging?
538 %************************************************************************
540 \section[Driver-parse-argv]{Munge the command-line options}
542 %************************************************************************
544 Now slurp through the arguments.
547 #---------- user defined prelude ---------------------------------------
549 if (grep(/^-user-prelude$/, @ARGV)) {
551 # If ARGV contains -user-prelude we are compiling a piece of
552 # prelude for the user, probably with additional specialise pragmas
554 # We strip out the -O -f and -user-prelude flags provided on
555 # the command line and add the ones used to compile the prelude
556 # ToDo: get these options from a common definition in mkworld
558 # We also enable any options forced through with -user-prelude-force
560 # Hey, Check out this grep statement ;-) (PS)
562 @ARGV = grep((!/^-O/ && !/^-f/ && !/^-user-prelude$/) || s/^-user-prelude-force//,
566 '-fcompiling-ghc-internals=???', # ToDo!!!!
568 '-fshow-pragma-name-errs',
569 '-fshow-import-specs',
575 print STDERR "ghc: -user-prelude options:\n", "@ARGV", "\n";
578 &initDriverGlobals();
579 &splitCmdLine(@ARGV);
580 # Run through the cmd-line first time.
581 &processArgs(@Cmd_opts);
583 # Check to see if driver is only in the business
584 # to generate dependencies
585 if ( $Status == 0 && $Only_generate_deps ) {
587 push (@MkDependHS_flags, "-o$Osuffix") if $Osuffix;
588 push (@MkDependHS_flags, "-s$BuildTag") if $BuildTag;
589 push (@MkDependHS_flags, "-D__HASKELL1__=$Haskell1Version");
590 local($to_do) = "$MkDependHS @MkDependHS_flags -- @Cmd_opts -- @Input_file" ;
591 &run_something($to_do, 'Haskell dependencies');
595 # if there are several input files,
596 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
597 # (except if linking, of course)
599 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
600 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
601 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
602 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
603 print STDERR "\tPerhaps the -odir option will do what you want.\n";
608 # check for various pathological -o and -odir combinations...
609 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
610 if ($Specific_output_file eq '-') {
611 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
613 } else { # amalgamate...
614 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
615 # ToDo: check we haven't got a junk name now...
616 $Specific_output_dir = ''; # reset
620 # crash and burn if there were errors
622 print STDERR $ShortUsage;
627 %************************************************************************
629 \section[Driver-post-argv-mangling]{Setup after reading options}
631 %************************************************************************
633 %************************************************************************
635 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
637 %************************************************************************
639 We come now to the default ``wads of options'' that are turned on by
640 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
641 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
644 The user can also specify his/her own list of options in a file; in
645 that case, the work is already done (see stuff about @minusO3@,
648 GHC allows very precise control of what happens during a compilation.
649 Core-to-Core and STG-to-STG passes can be run in any order, as many
650 times as you like. Individual transformations can be turned on or
653 Sadly, however, there are some interdependencies \& Things You Must
654 Not Do. Here is the list.
658 \item[\tr{-fspecialise}:]
659 The specialiser must have dependency-analysed input; but if you run
660 the simplifier to do this, you must not let it toss away unused
661 bindings! (The typechecker conveys some specialisation info via
662 ``unused'' bindings...)
664 \item[\tr{-ffloat-inwards}:]
665 Floating inwards should be done before strictness analysis, because
666 the latter will give better results.
668 \item[\tr{-fstatic-args}:]
669 The static-arguments-transformation pass {\em must} have the
670 simplifier run right after it.
672 \item[\tr{-fcalc-inlinings[12]}:]
673 Not required, but there may be slight gains by re-simplifying after
674 this is done. (You could then \tr{-fcalc-inlinings} again, just for
677 \item[\tr{-ffull-laziness}:]
678 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
679 that's run. (Um, well, howzabout the simplifier just once more...)
684 \item[\tr{-fupdate-analysis}:]
685 It really really wants to be the last STG-to-STG pass that is run.
690 sub setupOptimiseFlags {
696 '-ffloat-lets-exposing-whnf',
697 '-ffloat-primops-ok',
699 # '-fdo-lambda-eta-expansion', # too complicated
701 # '-flet-to-case', # no strictness analysis, so...
702 $Oopt_PedanticBottoms,
703 # $Oopt_MonadEtaExpansion, # no thanks
705 # These two work fine, if you really want no simplification at all,
706 # for bizarre test reasons. But you get really terrible code if you use them,
707 # for example: let x = e in x
708 # with dozens of redundant thunks etc. So I'm leaving them out.
710 # '-fsimpl-uf-use-threshold0',
711 # '-fessential-unfoldings-only',
713 $Oopt_UnfoldingUseThreshold,
714 $Oopt_MaxSimplifierIterations,
717 # '-ffull-laziness', # removed 95/04 WDP following Andr\'e's lead
719 $Oopt_FinalStgProfilingMassage
722 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
724 '-fdo-eta-reduction',
726 # initial simplify: mk specialiser happy: minimum effort please
730 '-fkeep-spec-pragma-ids', # required before specialisation
732 # I don't understand why we want -fessential-unfoldings-only here
733 # If we have it, the following nasty thing happens:
737 # where "*" means exported.
738 # In the essential-unfoldings pass we still substitute f for g
739 # but we don't substitute E for f first. So we get
743 # The g=f will get reverse-substituted later, but it's untidy.
745 # '-fessential-unfoldings-only',
746 # '-fsimpl-uf-use-threshold0',
748 '-fmax-simplifier-iterations1',
749 $Oopt_PedanticBottoms,
752 ($Oopt_DoSpecialise) ? (
753 '-fspecialise-overloaded',
754 $Oopt_SpecialiseUnboxed,
758 '-fsimplify', # need dependency anal after specialiser ...
759 '\(', # need tossing before calc-inlinings ...
761 '-ffloat-lets-exposing-whnf',
762 '-ffloat-primops-ok',
766 # '-fdo-eta-reduction',
767 '-fdo-lambda-eta-expansion',
769 $Oopt_PedanticBottoms,
770 $Oopt_MonadEtaExpansion,
771 $Oopt_UnfoldingUseThreshold,
772 $Oopt_MaxSimplifierIterations,
775 #LATER: '-fcalc-inlinings1', -- pointless for 2.01
777 # ($Oopt_FoldrBuildWW) ? (
778 # '-ffoldr-build-ww-anal',
779 # '-ffoldr-build-worker-wrapper',
783 # '-ffloat-lets-exposing-whnf',
784 # '-ffloat-primops-ok',
788 # '-fdo-eta-reduction',
789 # '-fdo-lambda-eta-expansion',
791 # $Oopt_PedanticBottoms,
792 # $Oopt_MonadEtaExpansion,
793 # $Oopt_UnfoldingUseThreshold,
794 # $Oopt_MaxSimplifierIterations,
798 # this pass-ordering sequence was agreed by Simon and Andr\'e
799 # (WDP 94/07, 94/11).
802 ($Oopt_FoldrBuild) ? (
803 '-ffoldr-build-on', # desugar list comprehensions for foldr/build
807 '-fignore-inline-pragma', # **** NB!
808 '-fdo-foldr-build', # NB
810 '-ffloat-lets-exposing-whnf',
811 '-ffloat-primops-ok',
815 # '-fdo-eta-reduction',
816 '-fdo-lambda-eta-expansion', # After full laziness
818 $Oopt_PedanticBottoms,
819 $Oopt_MonadEtaExpansion,
820 $Oopt_UnfoldingUseThreshold,
821 $Oopt_MaxSimplifierIterations,
830 '-ffloat-lets-exposing-whnf',
831 '-ffloat-primops-ok',
835 '-fdo-eta-reduction',
836 '-fdo-lambda-eta-expansion',
838 ($Oopt_FoldrBuildInline),
839 # you need to inline foldr and build
840 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
841 # but do reductions if you see them!
842 $Oopt_PedanticBottoms,
843 $Oopt_MonadEtaExpansion,
844 $Oopt_UnfoldingUseThreshold,
845 $Oopt_MaxSimplifierIterations,
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,
870 # Case-liberation for -O2. This should be after
871 # strictness analysis and the simplification which follows it.
875 # : "-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 \\)" ),
877 # Final clean-up simplification:
882 '-ffloat-lets-exposing-whnf',
883 '-ffloat-primops-ok',
887 # '-fdo-eta-reduction',
888 '-fdo-lambda-eta-expansion',
891 '-fignore-inline-pragma', # **** NB!
892 $Oopt_FoldrBuildInline,
893 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
894 # but still do reductions if you see them!
895 $Oopt_PedanticBottoms,
896 $Oopt_MonadEtaExpansion,
897 $Oopt_UnfoldingUseThreshold,
898 $Oopt_MaxSimplifierIterations,
903 #LATER: '-fcalc-inlinings2', -- pointless for 2.01
908 $Oopt_FinalStgProfilingMassage,
914 # SPECIAL FLAGS for -O2
922 Sort out what we're going to do about optimising. First, the @hsc@
923 flags and regular @cc@ flags to worry about:
925 if ( $OptLevel <= 0 ) {
927 # for this level, we tell the parser -fignore-interface-pragmas
928 push(@HsC_flags, '-fignore-interface-pragmas');
929 # and tell the compiler not to produce them
930 push(@HsC_flags, '-fomit-interface-pragmas');
932 &add_Hsc_flags( @HsC_minusNoO_flags );
933 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
935 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
937 &add_Hsc_flags( @HsC_minusO_flags );
938 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
939 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
940 # but it *is* useful in compiling the garbage collectors (so said
941 # Patrick many moons ago...).
943 } else { # -Ofile, then...
945 &add_Hsc_flags( @HsC_minusO3_flags );
946 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
949 } # setupOptimiseFlags
953 %************************************************************************
955 \subsection{Check for consistency, etc.}
957 %************************************************************************
959 Sort out @$BuildTag@, @$PROFing@, @$CONCURing@, @$PARing@,
960 @$GRANing@, @$TICKYing@:
962 sub setupBuildFlags {
965 # PROFILING stuff after argv mangling:
967 # warn about any scc exprs found (in case scc used as identifier)
968 push(@HsP_flags, '-W');
970 # add -auto sccs even if not profiling !
971 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
974 push(@HsC_flags, $PROFauto) if $PROFauto;
975 push(@HsC_flags, $PROFcaf) if $PROFcaf;
976 #push(@HsC_flags, $PROFdict) if $PROFdict;
978 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
980 push(@HsP_flags, (($PROFignore_scc) ? $PROFignore_scc : '-S'));
982 if ( $SplitObjFiles ) {
983 # can't split with cost centres -- would need global and externs
984 print STDERR "$Pgm: WARNING: splitting objects when profiling will *BREAK* if any _scc_s are present!\n";
985 # (but it's fine if there aren't any _scc_s around...)
986 # $SplitObjFiles = 0; # unset
987 #not an error: for now: $Status++;
990 #if ( $BuildTag ne '' ) {
991 # local($b) = $BuildDescr{$BuildTag};
992 # if ($CONCURing eq 'c') { print STDERR "$Pgm: Can't mix $b with -concurrent.\n"; exit 1; }
993 # if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
994 # if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
995 # if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
997 # # ok to have a user-way profiling build
998 # # eval the profiling opts ... but leave user-way BuildTag
999 # if ($PROFing eq 'p') { &processArgs(split(' ', $SetupOpts{'_p'})); } # eval($EvaldSetupOpts{'_p'}); }
1001 if ( $PROFing eq 'p' ) {
1002 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
1003 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
1004 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
1005 $BuildTag = ($CONCURing eq 'c') ? '_mr' : '_p' ; # possibly "profiled concurrent"...
1007 } elsif ( $CONCURing eq 'c' ) {
1008 if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix -concurrent with -parallel.\n"; exit 1; }
1009 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -concurrent with -gransim.\n"; exit 1; }
1010 $BuildTag = ($TICKYing eq 't') ? '_mt' : '_mc' ; # possibly "ticky concurrent"...
1011 # "profiled concurrent" already acct'd for...
1013 } elsif ( $PARing eq 'p' ) {
1014 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
1015 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
1018 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
1019 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
1023 } elsif ( $GRANing eq 'g' ) {
1024 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
1027 } elsif ( $TICKYing eq 't' ) {
1033 After the sanity checks, add flags to the necessary parts of the driver pipeline:
1036 if ( $BuildTag ne '' ) { # something other than normal sequential...
1038 local($Tag) = "${BuildTag}";
1039 $Tag =~ s/_//; # move the underscore to the back
1041 $HscOut = '-C='; # must go via C
1042 &processArgs(split(' ', $SetupOpts{$BuildTag}));
1043 # eval($EvaldSetupOpts{$BuildTag});
1047 Decide what the consistency-checking options are in force for this run:
1050 $HsC_consist_options = "${BuildTag},${DEBUGging}";
1051 $Cc_consist_options = "${BuildTag},${DEBUGging}";
1054 # Funny place to put it, but why not.
1056 if ( $HiSuffix_prelude eq '' ) {
1057 local($Tag) = "${BuildTag}";
1059 $Tag = "${Tag}_" if $Tag ne '';
1060 $HiSuffix_prelude="${Tag}hi";
1062 #push(@HsC_flags, "-hisuf-prelude=.${HiSuffix_prelude}"); # use appropriate Prelude .hi files
1063 #push(@HsC_flags, "-hisuf=.${HiSuffix}");
1068 %************************************************************************
1070 \subsection{Add on machine-specific C-compiler flags}
1072 %************************************************************************
1074 Shove on magical machine-specific options. We use \tr{unshift} to
1075 stick them on the {\em front} of the arrays, so that ``later''
1076 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
1078 Note: a few ``always apply'' flags were set at the very beginning.
1083 if ($TargetPlatform =~ /^alpha-/) {
1084 # we know how to *mangle* asm for alpha
1085 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1086 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1087 unshift(@CcBoth_flags, ('-static'));
1089 } elsif ($TargetPlatform =~ /^hppa/) {
1090 # we know how to *mangle* asm for hppa
1091 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1092 unshift(@CcBoth_flags, ('-static'));
1094 # We don't put in '-mlong-calls', because it's only
1095 # needed for very big modules (sigh), and we don't want
1096 # to hobble ourselves further on all the other modules
1099 # [Dated comment (gcc-2.6.x?), -mlong-calls is no longer
1100 # a supported gcc HPPA flag]
1101 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
1102 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
1103 # (very nice, but too bad the HP /usr/include files don't agree.)
1105 } elsif ($TargetPlatform =~ /^i386-/) {
1106 # we know how to *mangle* asm for X86
1107 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1108 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK && $TargetPlatform !~ /nextstep/;
1109 # I do not know how to do STACK_CHECK_BY_PAGE_FAULT
1110 # on NeXTs (my fault, not theirs), so I don't.
1113 # -fno-defer-pop : basically the same game as for m68k
1115 # -fomit-frame-pointer : *must* ; because we're stealing
1116 # the fp (%ebp) for our register maps. *All* register
1117 # maps (in MachRegs.lh) must steal it.
1119 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1120 unshift(@CcRegd_flags, '-fomit-frame-pointer');
1121 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1123 } elsif ($TargetPlatform =~ /^m68k-/) {
1124 # we know how to *mangle* asm for m68k
1125 unshift (@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1126 unshift (@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK && $TargetPlatform !~ /nextstep/;
1127 # I do not know how to do STACK_CHECK_BY_PAGE_FAULT
1128 # on NeXTs (my fault, not theirs), so I don't.
1131 # -fno-defer-pop : for the .hc files, we want all the pushing/
1132 # popping of args to routines to be explicit; if we let things
1133 # be deferred 'til after an STGJUMP, imminent death is certain!
1135 # -fomit-frame-pointer : *don't*
1136 # It's better to have a6 completely tied up being a frame pointer
1137 # rather than let GCC pick random things to do with it.
1138 # (If we want to steal a6, then we would try to do things
1139 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1141 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1142 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1143 # maybe gives reg alloc a better time
1144 # also: -fno-defer-pop is not sufficiently well-behaved without it
1146 } elsif ($TargetPlatform =~ /^mips-/) {
1147 # we (hope to) know how to *mangle* asm for MIPSen
1148 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1149 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1150 unshift(@CcBoth_flags, ('-static'));
1152 } elsif ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1153 # we know how to *mangle* asm for PowerPC
1154 # :-( unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1155 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1156 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1157 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1158 } elsif ($TargetPlatform =~ /^sparc-/) {
1159 # we know how to *mangle* asm for SPARC
1160 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1161 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1164 } # end of setupMachOpts
1167 Same unshifting magic, but for special linker flags.
1169 The configure script determines whether the object file symbol tables
1170 have a leading underscore, and sets @LeadingUnderscore@ accordingly.
1171 (The driver script `sees' the setting of the @LeadingUnderscore@
1172 by having the Makefile prepend it).
1176 local($uscore) = ( ${LeadingUnderscore} eq 'YES' ) ? '_' : '';
1179 (($Ld_main) ? ( '-u', "${uscore}Main_" . $Ld_main . '_closure' ) : ()));
1181 ( '-u', "${uscore}PrelBase_Z91Z93_closure" # i.e., []
1182 ,'-u', "${uscore}PrelBase_IZh_static_info"
1183 ,'-u', "${uscore}PrelBase_CZh_static_info"
1184 ,'-u', "${uscore}PrelBase_False_inregs_info"
1185 ,'-u', "${uscore}PrelBase_True_inregs_info"
1186 ,'-u', "${uscore}STBase_SZh_static_info"
1187 ,'-u', "${uscore}DEBUG_REGS"
1189 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1190 # sometimes we have lots of toc entries...
1191 # unshift(@Ld_flags, ('-Xlinker -bbigtoc -Xlinker -bnoquiet'));
1192 unshift(@Ld_flags, ('-Xlinker -bbigtoc'));
1195 } # end of setupLinkOpts
1199 %************************************************************************
1201 \subsection{Set up include paths and system-library enslurpment}
1203 %************************************************************************
1205 Now that we know what garbage-collector, etc., are required, we can
1206 finalise our list of libraries to slurp through, and generally Get
1211 # default includes must be added AFTER option processing
1212 if ( ! $INSTALLING ) {
1213 push (@Include_dir, "$TopPwd/${CURRENT_DIR}/${GHC_INCLUDE_DIR}");
1215 push (@Include_dir, "$InstLibDirGhc/includes");
1216 push (@Include_dir, "$InstLibDirGhc/includes");
1218 } # end of setupIncPaths
1223 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1226 foreach $f (@SysLibrary) {
1227 next if $f =~ /_cbits/;
1228 $f .= $BuildTag if $f =~ /^-lHS/;
1231 # fiddle the TopClosure file name...
1232 $TopClosureFile =~ s/XXXX//;
1234 # Push library HSrts, plus boring clib bit
1235 push(@SysLibrary, "-lHSrts${BuildTag}");
1236 push(@SysLibrary, '-lHSclib');
1238 # RTS compiled with cygwin32, uses the WinMM API
1239 # to implement the itimers, since cygwin.dll does not
1240 # support it. Only reqd. for `ways' that use itimers.
1242 push(@SysLibrary, '-lwinmm') if $BuildTag ne '' && $TargetPlatform eq 'i386-unknown-cygwin32';
1244 # Push the pvm libraries
1245 if ($BuildTag eq '_mp') {
1246 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1247 push(@SysLibrary, "-L$pvmlib", '-lpvm3', '-lgpvm3');
1248 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1249 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1250 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1251 push(@SysLibrary, '-lsocket', '-lnsl');
1255 # Push the GNU multi-precision arith lib; and the math library
1256 push(@SysLibrary, '-lgmp');
1257 push(@SysLibrary, '-lm');
1260 %************************************************************************
1262 \subsection{Check that this system was built to do what we are asking}
1264 %************************************************************************
1266 Before continuing we check that the appropriate build is available.
1269 #die "$Pgm: no BuildAvail?? $BuildTag\n" if $BuildDescr{$BuildTag} eq '' ; # sanity
1271 if ( $BuildDescr{$BuildTag} eq '' ) {
1272 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1273 "' \"build\" is not available with your GHC setup.\n";
1274 print STDERR "(It was not configured for it at your site.)\n";
1275 print STDERR $ShortUsage;
1279 } # end of setupSyslibs
1283 %************************************************************************
1285 \subsection{Final miscellaneous setup bits before we start going}
1287 %************************************************************************
1289 Record largest specific heapsize, if any.
1291 sub setupHeapStackSize {
1292 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1293 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1294 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1295 push(@HsC_rts_flags, "-K$Specific_stk_size");
1299 If no input or link files seen, then we let 'em feed in stdin; this is
1300 mainly for debugging.
1304 if ($#Input_file < 0 && $#Link_file < 0) {
1305 @Input_file = ( '-' );
1307 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1308 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n";
1309 while (<>) { print INF $_; }
1310 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1315 Tell the world who we are, if they asked.
1317 print STDERR "${PROJECTNAME}, version ${PROJECTVERSION}, patchlevel ${PROJECTPATCHLEVEL}\n"
1321 %************************************************************************
1323 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1325 %************************************************************************
1327 Process the input files; don't continue with linking if there are
1328 problems (global variable @$Status@ non-zero).
1330 foreach $ifile (@Input_file) {
1331 &ProcessInputFile($ifile);
1334 if ( $Status > 0 ) { # don't link if there were errors...
1335 print STDERR $ShortUsage;
1340 # append last minute flags linker and consistency flags
1347 Link if appropriate.
1350 local($libdirs) = '';
1352 # glue them together:
1353 push(@UserLibrary_dir, @SysLibrary_dir);
1355 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1357 # for a linker, use an explicitly given one, or the going C compiler ...
1358 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1360 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1361 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1363 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $TopClosureFile $libdirs @UserLibrary @SysLibrary";
1364 &run_something($to_do, 'Linker');
1366 # finally, check the consistency info in the binary
1367 local($executable) = $Files_to_tidy[0];
1368 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1371 # dynamically load consistency-chking code; then do it.
1372 require('ghc-consist.prl')
1373 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1375 &chk_consistency_info ( $executable );
1378 # if PVM parallel stuff, we do truly weird things.
1379 # Essentially: (1) move the executable over to where PVM expects
1380 # to find it. (2) create a script in place of the executable
1381 # which will cause the program to be run, via SysMan.
1382 if ( $PARing eq 'p' ) {
1383 local($pvm_executable) = $executable;
1384 local($pvm_executable_base);
1386 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1387 local($pwd) = `pwd`;
1389 $pwd =~ s/^\/tmp_mnt//;
1390 $pvm_executable = "$pwd/$pvm_executable";
1393 $pvm_executable =~ s|/|=|g; # make /s into =s
1394 $pvm_executable_base = $pvm_executable;
1396 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1397 . "/$pvm_executable";
1399 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1401 # OK, now create the magic script for "$executable"
1402 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1403 print EXEC <<EOSCRIPT1;
1404 eval 'exec perl -S \$0 \${1+"\$@"}'
1405 if \$running_under_some_shell;
1406 # =!=!=!=!=!=!=!=!=!=!=!
1407 # This script is automatically generated: DO NOT EDIT!!!
1408 # Generated by Glasgow Haskell, version ${PROJECTVERSION} ${PROJECTPATCHLEVEL}
1410 \$pvm_executable = '$pvm_executable';
1411 \$pvm_executable_base = '$pvm_executable_base';
1412 \$SysMan = '$SysMan';
1415 print EXEC <<\EOSCRIPT2;
1416 # first, some magical shortcuts to run "commands" on the binary
1418 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1420 system("$cmd $pvm_executable");
1424 # OK, really run it; process the args first
1425 $ENV{'PE'} = $pvm_executable_base;
1427 $nprocessors = 2; # the default
1431 # ToDo: handle --RTS
1432 args: while ($a = shift(@ARGV)) {
1433 if ( $a eq '+RTS' ) {
1435 } elsif ( $a eq '-RTS' ) {
1438 if ( $a eq '-d' && $in_RTS_args ) {
1440 } elsif ( $a =~ /^-N(\d+)/ && $in_RTS_args ) {
1443 push(@nonPVM_args, $a);
1447 local($return_val) = 0;
1448 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
1450 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
1453 close(EXEC) || die "Failed closing $executable\n";
1454 chmod 0755, $executable;
1458 # that... that's all, folks!
1460 exit $Status; # will still be 0 if all went well
1463 %************************************************************************
1465 \section[Driver-do-one-file]{How to process a single input file}
1467 %************************************************************************
1470 sub ProcessInputFile {
1471 local($ifile) = @_; # input file name
1472 local($ifile_root); # root of or basename of input file
1473 local($ofile_target); # ultimate output file we hope to produce
1474 # from input file (need to know for recomp
1475 # checking purposes)
1476 local($hifile_target);# ditto (but .hi file)
1479 Handle the weirdity of input from stdin.
1481 if ($ifile ne '-') {
1482 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1483 $ofile_target = # may be reset later...
1484 ($Specific_output_file ne '' && ! $Do_lnkr)
1485 ? $Specific_output_file
1486 : &odir_ify($ifile_root, 'o');
1487 $hifile_target= ($Specific_hi_file ne '')
1489 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1490 # NB: may change if $ifile_root isn't module name (??)
1492 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1493 $ifile_root = '_stdin';
1494 $ofile_target = '_stdout'; # gratuitous?
1495 $hifile_target= '_stdout'; # ditto?
1499 We need to decide what phases of the compilation system we will run
1500 over this file. The defaults are the ones established when processing
1501 flags. (That established what the last phase run for all files is.)
1503 We do the pre-recompilation-checker phases here; the rest later.
1507 Look at the suffix and decide what initial phases of compilation may
1508 be dropped off for this file. Also the rather boring business of
1509 which files are coming-in/going-out.
1511 Again, we'll do the post-recompilation-checker parts of this later.
1513 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1514 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1517 # names of the files to stuff between phases
1518 # defaults are temporaries
1519 local($in_lit2pgm) = $ifile;
1520 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1521 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1522 local($hsc_hi) = "$Tmp_prefix.hi";
1523 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1524 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1525 local($as_out) = $ofile_target;
1527 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
1529 # OK, let's strip off some literate junk..
1530 if ($ifile =~ /\.lhs$/) {
1531 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
1533 $lit2pgm_hscpp = $ifile;
1539 # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas
1540 &check_for_source_options($lit2pgm_hscpp,$ifile);
1541 # options found in the source file take a back seat, i.e., we scan
1542 # them first. Only process the command line again if source file
1543 # contained anything of interest *or* there's more than one
1544 # input file (we have to reset the options).
1546 if ( $#Input_file >= 0 || $#File_options >= 0) {
1547 #@File_options = (@File_options, @Cmd_opts);
1549 # Now process the command line
1550 &initDriverGlobals();
1551 &processArgs((@File_options,@Cmd_opts));
1552 print STDERR "\nEffective command line: " .
1553 join(' ',(@File_options,@Cmd_opts)) . "\n" if $Verbose;
1556 # Having got the effective command line scanned, set up
1557 # the various options in prep for some real work.
1559 # check the sanity of the BuildTag we're about to use,
1560 # and if needs be, add some more flags and setup to
1561 # the different phases.
1564 &setupOptimiseFlags();
1567 &setupHeapStackSize();
1570 # These two variables need to be set after the
1571 # command-line has been processed and the build options
1572 # have be seen set up. This is because command-line options
1573 # can control whether to compile vias C or not.
1575 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1577 : ( ($HscOut eq '-C=') ? 1 : 0 );
1578 local($do_as) = $Do_as;
1579 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1581 if ($Only_preprocess_hc) { # stop after having run $Cc -E
1584 if ($Only_preprocess_C) { # stop after having run $hscpp
1585 $do_hsc=0; $do_cc = 0; $do_as=0;
1586 } elsif ($ifile =~ /.lhs$/ || $ifile =~ /.hs$/ ) {
1588 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
1589 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1591 } elsif ($ifile =~ /\.c$/) {
1592 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1593 $hsc_out = $ifile; $is_hc_file = 0;
1594 } elsif ($ifile =~ /\.s$/) {
1595 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
1597 } else { # don't know what it is, but nothing to do herein...
1598 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
1601 # hack to avoid running hscpp
1602 $HsCpp = $Cat if ! $Cpp_flag_set;
1604 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) if $do_hscpp;
1608 We now think about whether to run hsc/cc or not (when hsc produces .s
1609 stuff, it effectively takes the place of both phases).
1611 To get the output file name right: for each phase that we are {\em
1612 not} going to run, set its input (i.e., the output of its preceding
1613 phase) to @"$ifile_root.<suffix>"@.
1616 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
1619 # Warning issued if -keep-hc-file-too is used without
1620 # -fvia-C (or the equivalent)
1622 if ( $HscOut ne '-C=' && $Keep_hc_file_too ) {
1623 print STDERR "$Pgm: warning: Native code generator to be used, -keep-hc-file-too will be ignored\n";
1626 if (! $do_cc && ! $do_as) { # stopping after hsc
1627 $hsc_out = ($Specific_output_file ne '')
1628 ? $Specific_output_file
1629 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
1631 $ofile_target = $hsc_out; # reset
1634 if (! $do_as) { # stopping after gcc (or hsc)
1635 $cc_as = ($Specific_output_file ne '')
1636 ? $Specific_output_file
1637 : &odir_ify($ifile_root, ( $Only_preprocess_hc ) ? 'i' : 's');
1639 $ofile_target = $cc_as; # reset
1645 Now the Haskell compiler, C compiler, and assembler
1649 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
1650 $ofile_target, $hifile_target);
1654 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
1655 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root) if ! $Only_preprocess_hc;
1658 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
1660 # save a copy of the .s file..
1661 &saveIntermediate($ifile_root , "s" , $cc_as) if ($do_as && $Keep_s_file_too);
1662 &runAs($as_out, $ifile_root) if $do_as;
1665 Finally, decide what to queue up for linker input.
1667 # tentatively assume we will eventually produce linker input:
1668 push(@Link_file, &odir_ify($ifile_root, 'o'));
1670 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
1672 if ( $ifile !~ /\.(lhs|hs|hc|c|s)$/ && $ifile !~ /_hc$/ ) {
1673 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n"
1674 if $ifile !~ /\.a$/;
1676 # oops; we tentatively pushed the wrong thing; fix & do the right thing
1677 pop(@Link_file); push(@Link_file, $ifile);
1681 } # end of ProcessInputFile
1684 %************************************************************************
1686 \section[Driver-run-phases]{Routines to run the various phases}
1688 %************************************************************************
1692 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
1694 local($to_do) = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && ".
1695 "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
1696 @Files_to_tidy = ( $lit2pgm_hscpp );
1698 &run_something($to_do, 'literate pre-processor');
1704 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
1708 if ($HsCpp eq $Cat) {
1709 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $hscpp_hsc && ".
1710 "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
1711 @Files_to_tidy = ( $hscpp_hsc );
1712 &run_something($to_do, 'Ineffective C pre-processor');
1714 local($includes) = '-I' . join(' -I',@Include_dir);
1715 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $hscpp_hsc && ".
1716 "$HsCpp $Verbose $genSPECS_flag @HsCpp_flags -D__HASKELL1__=$Haskell1Version -D__GLASGOW_HASKELL__=$GhcVersionInfo $includes $lit2pgm_hscpp >> $hscpp_hsc";
1717 @Files_to_tidy = ( $hscpp_hsc );
1718 &run_something($to_do, 'Haskellised C pre-processor');
1721 if ( $Only_preprocess_C ) {
1722 $to_do = "$Cat $hscpp_hsc";
1723 &run_something($to_do, '');
1731 sub runHscAndProcessInterfaces {
1732 local($ifile, $hscpp_hsc, $ifile_root, $ofile_target, $hifile_target) = @_;
1734 # $ifile is the original input file
1735 # $hscpp_hsc post-unlit, post-cpp, etc., input file
1736 # $ifile_root input filename minus suffix
1737 # $ofile_target the output file that we ultimately hope to produce
1738 # $hifile_target the .hi file ... (ditto)
1740 local($source_unchanged) = 1;
1742 # Check if the source file is up to date relative to the target; in
1743 # that case we say "source is unchanged" and let the compiler bail out
1744 # early if the import usage information allows it.
1746 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
1747 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
1749 # The informational messages below are now conditional on -v being set -- SOF
1750 if ( ! -f $ofile_target ) {
1751 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n" if $Verbose;
1752 $source_unchanged = 0;
1755 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
1756 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
1758 if ( ! -f $hifile_target ) {
1759 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n" if $Verbose;
1760 $source_unchanged = 0;
1763 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
1764 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
1766 if ($i_mtime > $o_mtime) {
1767 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n" if $Verbose;
1768 $source_unchanged = 0;
1771 # So if source_unchanged is still "1", we pass on the good news to the compiler
1772 # The -recomp flag can disable this, forcing recompilation
1773 if ($Do_recomp_chkr && $source_unchanged) {
1774 push(@HsC_flags, '-fsource-unchanged');
1779 &runHsc($ifile_root, $hsc_out, $hsc_hi, $going_interactive);
1781 # See if it bailed out early, saying nothing needed doing.
1782 # We work this out by seeing if it created an output .hi file
1784 if ( ! -f $hsc_hi && $ProduceHi !~ /-nohifile=/ ) {
1785 # Doesn't exist, so we bailed out early.
1786 # Tell the C compiler and assembler not to run
1787 $do_cc = 0; $do_as = 0;
1789 # Update dependency info, touch both object file and
1790 # interface file, so that the following invariant is
1793 # a dependent module's interface file should after recompilation
1794 # checking be newer than the interface files of its imports.
1796 # That is, if module A's interface file changes, then module B
1797 # (which import from A) needs to be checked.
1798 # If A's change does not affect B, which causes the compiler to bail
1799 # out early, we still need to touch the interface file of B. The reason
1800 # for this is that B may export A's interface.
1802 &run_something("touch $ofile_target",
1803 "Touch $ofile_target, to propagate dependencies") if $HscOut ne '-N=';
1804 &run_something("touch $hifile_target",
1805 "Touch $hifile_target, to propagate dependencies") if $ProduceHi =~ /-nohifile=/ ;
1809 # Didn't bail out early (new .hi file) so we thunder on
1811 # If non-interactive, heave in the consistency info at the end
1812 # NB: pretty hackish (depends on how $output is set)
1813 if ( ! $going_interactive ) {
1814 if ( $HscOut eq '-C=' ) {
1815 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
1817 } elsif ( $HscOut eq '-S=' ) {
1818 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
1819 $consist =~ s/,/./g;
1820 $consist =~ s/\//./g;
1821 $consist =~ s/-/_/g;
1822 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
1823 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
1825 &run_something($to_do, 'Pin on Haskell consistency info');
1829 # Interface-handling is important enough to live off by itself
1830 if ( $ProduceHi !~ /-nohifile=/ ) { # If we've produced one, process it.
1831 require('ghc-iface.prl') || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
1832 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
1834 # if we're going to split up object files,
1835 # we inject split markers into the .hc file now
1836 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
1837 &inject_split_markers ( $hsc_out );
1840 # save a copy of the .hc file, even if we are carrying on...
1841 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
1842 &saveIntermediate($ifile_root , "hc" , $hsc_out);
1852 local($ifile_root, $hsc_out, $hsc_hi, $going_interactive) = @_;
1854 # prepend comma to HsP flags (so hsc can tell them apart...)
1855 foreach $a ( @HsP_flags ) { $a = ",$a" unless $a =~ /^,/; }
1857 &makeHiMap() unless $HiMapDone;
1858 #print STDERR "HiIncludes: $HiIncludeString\n";
1859 push(@HsC_flags, "-himap=$HiIncludeString");
1861 # here, we may produce .hc/.s and/or .hi files
1862 local($output) = '';
1863 @Files_to_tidy = ();
1865 if ( $going_interactive ) {
1866 # don't need .hi unless going to show it on stdout:
1867 $ProduceHi = '-nohifile=' if ! $HiOnStdout;
1868 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
1871 # set up for producing output/.hi; note that flag twiddling
1872 # may mean that nothing will actually be produced:
1873 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out";
1874 @Files_to_tidy = ( $hsc_hi, $hsc_out );
1876 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
1877 if ( $CollectingGCstats ) {
1878 push(@HsC_rts_flags, "-S$ifile_root.stat");
1879 push(@Files_to_tidy, "$ifile_root.stat");
1882 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
1883 # emit nofibbish time/bytes-alloc stats to stderr;
1884 # see later .stat file post-processing
1885 push(@HsC_rts_flags, "-s$Tmp_prefix.stat");
1886 push(@Files_to_tidy, "$Tmp_prefix.stat");
1890 if ($Specific_dump_file ne '') {
1891 $dump = "2>> $Specific_dump_file";
1892 $Using_dump_file = 1;
1896 $to_do = "$HsC @HsP_flags ,$hscpp_hsc $dump @HsC_flags $CoreLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
1897 &run_something($to_do, 'Haskell compiler');
1899 # finish business w/ nofibbish time/bytes-alloc stats
1900 &process_ghc_timings() if $CollectGhcTimings;
1904 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
1905 of (module-name, pathname) pairs, one per line, separated by a space.
1908 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1912 # collect in %HiMap; write later; also used elsewhere in driver
1914 local($mod, $path, $d, $e);
1916 # reset the global variables:
1918 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1920 foreach $d ( @Import_dir ) {
1921 if ($HiIncludeString) {
1922 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix}";
1924 $HiIncludeString = "$d%.${HiSuffix}";
1929 foreach $d ( @SysImport_dir ) {
1930 if ($HiIncludeString) {
1931 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix_prelude}";
1933 $HiIncludeString = "${d}%.${HiSuffix_prelude}";
1942 %************************************************************************
1944 \section[Driver-misc-utils]{Miscellaneous utilities}
1946 %************************************************************************
1948 %************************************************************************
1950 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
1952 %************************************************************************
1956 local($ofile,$def_suffix) = @_;
1958 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
1962 local($orig_file, $def_suffix) = @_;
1963 if ($Specific_output_dir eq '') { # do nothing
1964 &osuf_ify($orig_file, $def_suffix);
1966 local ($orig_file_only);
1967 ($orig_file_only = $orig_file) =~ s|.*/||;
1968 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
1975 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
1977 local($includes) = '-I' . join(' -I', @Include_dir);
1980 local($c_flags) = "@CcBoth_flags";
1981 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
1983 # "input" files to use that are not in some weird directory;
1984 # to help C compilers grok .hc files [ToDo: de-hackify]
1985 local($cc_help) = "ghc$$.c";
1986 local($cc_help_s) = "ghc$$.s";
1989 $s_output = ($is_hc_file || $TargetPlatform =~ /^(powerpc|rs6000|hppa|i386)/) ? $cc_as_o : $cc_as;
1990 $c_flags .= " @CcRegd_flags";
1991 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
1993 # C compiler won't like the .hc extension. So we create
1994 # a tmp .c file which #include's the needful.
1995 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
1996 if ( $is_hc_file ) {
1998 #ifdef __STG_GCC_REGS__
1999 # if ! (defined(MAIN_REG_MAP) || defined(MARK_REG_MAP) || defined(SCAN_REG_MAP) || defined(SCAV_REG_MAP) || defined(FLUSH_REG_MAP))
2000 # define MAIN_REG_MAP
2003 #include "stgdefs.h"
2005 # user may have asked for #includes to be injected...
2006 print TMP @CcInjects if $#CcInjects >= 0;
2008 # heave in the consistency info
2009 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2011 # and #include the real source
2012 print TMP "#include \"$hsc_out\"\n";
2013 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2015 # Don't redirect stderr into intermediate file if slamming output onto stdout (e.g., with -E)
2016 local($fuse_stderr) = "2>&1" if ! $Only_preprocess_hc;
2017 local($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 )";
2018 # note: __GLASGOW_HASKELL__ is pointedly *not* #defined at the C level.
2020 if ( $Only_preprocess_hc ) { # HACK ALERT!
2021 $to_do =~ s/ -S\b//g;
2023 @Files_to_tidy = ( $cc_help, $cc_help_s, $s_output );
2024 $PostprocessCcOutput = 1 if ! $Only_preprocess_hc; # hack, dear hack...
2025 &run_something($to_do, 'C compiler');
2026 $PostprocessCcOutput = 0;
2027 if ( $Only_preprocess_hc ) {
2028 system("$Cat $Tmp_prefix.ccout");
2030 unlink($cc_help, $cc_help_s);
2036 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2038 if ( $is_hc_file ) {
2039 # dynamically load assembler-fiddling code, which we are about to use:
2040 require('ghc-asm.prl')
2041 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2044 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2047 # post-process the assembler [.hc files only]
2048 &mangle_asm($cc_as_o, $cc_as);
2052 #OLD: local($target) = 'oops';
2053 #OLD: $target = '-alpha' if $TargetPlatform =~ /^alpha-/;
2054 #OLD: $target = '-hppa' if $TargetPlatform =~ /^hppa/;
2055 #OLD: $target = '-old-asm' if $TargetPlatform =~ /^i386-/;
2056 #OLD: $target = '-m68k' if $TargetPlatform =~ /^m68k-/;
2057 #OLD: $target = '-mips' if $TargetPlatform =~ /^mips-/;
2058 #OLD: $target = '' if $TargetPlatform =~ /^powerpc-/;
2059 #OLD: $target = '-solaris' if $TargetPlatform =~ /^sparc-sun-solaris2/;
2060 #OLD: $target = '-sparc' if $TargetPlatform =~ /^sparc-sun-sunos4/;
2062 #OLD: if ( $target ne '' ) {
2063 #OLD: require("ghc-asm$target.prl")
2064 #OLD: || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm$target.prl!\n");
2065 #OLD: &mangle_asm($cc_as_o, "$cc_as-2"); # the OLD one!
2066 #OLD: &run_something("$Cmp -s $cc_as-2 $cc_as || $Diff $cc_as-2 $cc_as 1>&2 || exit 0",
2067 #OLD: "Diff'ing old and new mangled .s files"); # NB: to stderr
2070 } elsif ($TargetPlatform =~ /^hppa/) {
2071 # minor mangling of non-threaded files for hp-pa only
2072 require('ghc-asm.prl')
2073 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2074 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2076 } elsif ($TargetPlatform =~ /^powerpc|^rs6000/) {
2077 # minor mangling of non-threaded files for powerpcs and rs6000s
2078 require('ghc-asm.prl')
2079 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-powerpc.prl!\n");
2080 &mini_mangle_asm_powerpc($cc_as_o, $cc_as);
2081 } elsif ($TargetPlatform =~ /^i386/) {
2082 # extremely-minor OFFENSIVE mangling of non-threaded just one file
2083 require('ghc-asm.prl')
2084 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2085 &mini_mangle_asm_i386($cc_as_o, $cc_as);
2088 # save a copy of the .s file, even if we are carrying on...
2089 #if ($do_as && $Keep_s_file_too) {
2090 # &saveIntermediate($ifile_root , "s" , $cc_as);
2097 local($as_out, $ifile_root) = @_;
2099 local($asmblr) = ( $As ) ? $As : $CcRegd;
2101 if ( ! $SplitObjFiles ) {
2102 local($to_do) = "$asmblr -o $as_out -c @As_flags $cc_as";
2103 @Files_to_tidy = ( $as_out );
2104 &run_something($to_do, 'Unix assembler');
2106 } else { # more complicated split-ification...
2108 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2110 # If -odir is used, great, just pin it in front of the
2111 # generated split file names. If it hasn't been set, we
2112 # snatch it from the ifile_root.
2116 if ( $Specific_output_dir eq '' ) {
2117 $Specific_output_dir = ${ifile_root};
2120 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2121 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2122 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2123 @Files_to_tidy = ( $split_out );
2125 &run_something($to_do, 'Unix assembler');
2131 %************************************************************************
2133 \subsection[Driver-run-something]{@run_something@: Run a phase}
2135 %************************************************************************
2139 local($str_to_do, $tidy_name) = @_;
2141 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2142 print STDERR "$str_to_do\n" if $Verbose;
2144 if ($Using_dump_file) {
2145 open(DUMP, ">> $Specific_dump_file")
2146 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2147 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2149 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2152 local($return_val) = 0;
2154 if ( length($str_to_do) > 4000) {
2155 # 4000 - on the random side, just like the *real* ARG_MAX
2158 # With some shells, command lines of this length may
2159 # very well cause trouble. To safeguard against this, we squirrel the
2160 # command into a file and exec that.
2161 local ($sh) = $ENV{'REAL_SHELL'};
2162 print STDERR "Backup plan A: saving cmd line in ${Tmp_prefix}.sh and executing that with $sh\n" if $Verbose;
2163 open (TEMP, "> ${Tmp_prefix}.sh") ||
2164 &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.sh'\n");
2165 print TEMP "$Time $str_to_do\n";
2167 &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.sh'\n");
2168 system("$sh $Tmp_prefix.sh");
2171 unlink "${Tmp_prefix}.sh";
2173 system("$Time $str_to_do");
2177 if ( $PostprocessCcOutput ) { # hack, continued
2178 open(CCOUT, "< $Tmp_prefix.ccout")
2179 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2181 next if /attribute directive ignored/;
2182 next if /call-clobbered/;
2183 next if /from .*COptRegs\.lh/;
2184 next if /from .*(stg|rts)defs\.h:/;
2185 next if /from ghc\d+.c:\d+:/;
2186 next if /from .*\.lc/;
2187 next if /from .*SMinternal\.l?h/;
2188 next if /ANSI C does not support \`long long\'/;
2189 next if /warning:.*was declared \`extern\' and later \`static\'/;
2190 next if /warning: assignment discards \`const\' from pointer target type/;
2191 next if /: At top level:$/;
2192 next if /: In function \`.*\':$/;
2193 next if /\`ghc_cc_ID\' defined but not used/;
2196 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2199 if ($return_val != 0) {
2200 if ($Using_dump_file) {
2201 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2204 &tidy_up_and_die($return_val, '');
2206 $Using_dump_file = 0;
2210 %************************************************************************
2212 \subsection[Driver-ghc-timing]{Emit nofibbish GHC timings}
2214 %************************************************************************
2216 NB: nearly the same as in @runstdtest@ script.
2219 sub process_ghc_timings {
2220 local($StatsFile) = "$Tmp_prefix.stat";
2221 local($SysSpecificTiming) = 'ghc';
2223 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2224 local($tot_live) = 0; # for calculating avg residency
2227 $tot_live += $1 if /^\s*\d+\s+\d+\s+\d+\.\d+\%\s+(\d+)\s+\d+\.\d+\%/;
2229 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2231 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2232 $MaxResidency = $1; $ResidencySamples = $2;
2235 $GCs = $1 if /^\s*([0-9,]+) garbage collections? performed/;
2237 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2238 $InitTime = $1; $InitElapsed = $2;
2239 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2240 $MutTime = $1; $MutElapsed = $2;
2241 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2242 $GcTime = $1; $GcElapsed = $2;
2245 close(STATS) || die "Failed when closing $StatsFile\n";
2246 if ( defined($ResidencySamples) && $ResidencySamples > 0 ) {
2247 $AvgResidency = int ($tot_live / $ResidencySamples) ;
2250 # warn about what we didn't find
2251 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2252 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2253 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2254 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2255 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2256 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2257 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2258 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2260 # things we didn't necessarily expect to find
2261 $MaxResidency = 0 unless defined($MaxResidency);
2262 $AvgResidency = 0 unless defined($AvgResidency);
2263 $ResidencySamples = 0 unless defined($ResidencySamples);
2266 $BytesAlloc =~ s/,//g;
2267 $MaxResidency =~ s/,//g;
2269 $InitTime =~ s/,//g;
2270 $InitElapsed =~ s/,//g;
2272 $MutElapsed =~ s/,//g;
2274 $GcElapsed =~ s/,//g;
2276 # print out what we found
2277 print STDERR "<<$SysSpecificTiming: ",
2278 "$BytesAlloc bytes, $GCs GCs, $AvgResidency/$MaxResidency avg/max bytes residency ($ResidencySamples samples), $InitTime INIT ($InitElapsed elapsed), $MutTime MUT ($MutElapsed elapsed), $GcTime GC ($GcElapsed elapsed)",
2279 " :$SysSpecificTiming>>\n";
2286 %************************************************************************
2288 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2290 %************************************************************************
2294 local($to_do) = "\n$Rm $Tmp_prefix*";
2295 if ( $Tmp_prefix !~ /^\s*$/ ) {
2296 print STDERR "$to_do\n" if $Verbose;
2301 sub tidy_up_and_die {
2302 local($return_val, $msg) = @_;
2304 # delete any files to tidy
2305 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2306 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2310 exit (($return_val == 0) ? 0 : 1);
2314 %************************************************************************
2316 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2318 %************************************************************************
2320 Some command-line arguments take an argument, e.g.,
2321 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2322 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2323 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2325 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2326 gobble the second argument (and probably set the heapsize to something
2330 local(*Args, $option, $rest_of_arg) = @_;
2333 return($rest_of_arg);
2334 } elsif ($#Args >= 0) {
2335 local($temp) = $Args[0]; shift(@Args);
2338 print STDERR "$Pgm: no argument following $option option\n";
2349 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2351 foreach $f ( @HsC_antiflags ) {
2352 return(0) if $flag eq $f;
2354 # foreach $f ( @HsC_flags ) {
2355 # return(0) if $flag eq $f;
2360 sub squashHscFlag { # pretty terrible
2364 foreach $f ( @HsC_flags ) {
2365 if ($flag eq $f) { $f = ''; }
2373 foreach $f ( @flags ) {
2374 push( @HsC_flags, $f ) if &isntAntiFlag($f);
2379 Source files may have {-# OPTIONS ... #-} pragmas at the top, containing
2380 command line options we want to append to collection of commands specified
2381 directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell
2382 file for any such pragmas:
2385 sub check_for_source_options {
2386 local($file,$ifile) = @_;
2387 local($comment_start,$comment_end);
2389 if ($ifile =~ /\.hc$/ ||
2392 $ifile =~ /_s$/ ) { # `Real' C intermediate
2393 $comment_start = "/\\*";
2394 $comment_end = "\\*/";
2395 } else { # Assume it is a file containing Haskell source
2396 $comment_start = "{-#";
2397 $comment_end = "#-}";
2400 open(FILE,$file) || return(1); # No big loss
2403 if ( /^${comment_start} OPTIONS (.*)${comment_end}$/ ) {
2404 # add the options found at the back of the command line.
2405 local(@entries) = split(/\s+/,$1);
2406 print STDERR "Found OPTIONS " . join(' ',@entries) . " in $file\n" if $Verbose;
2407 push(@File_options, @entries);
2409 elsif ( /^$/ ) { # ignore empty lines
2412 elsif ( /^#line.+$/ ) { # ignore comment lines
2415 else { # stop looking, something non-empty / not
2416 # ${comment_start} OPTIONS .. ${comment_end} encountered.
2417 close(FILE);return(0);
2426 We split the initial argv up into three arrays:
2432 the reason for doing so is to be able to deal
2433 with {-# OPTIONS #-} pragma in source files properly.
2439 arg: while($_ = $args[0]) {
2441 # sigh, we have to deal with these -option arg specially here.
2442 /^-(tmpdir|odir|o|isuf|osuf|hisuf|hisuf-prelude|odump|syslib)$/ &&
2443 do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; };
2444 /^--?./ && do { push(@Cmd_opts, $_); next arg; };
2447 push(@Link_file, $_);
2449 push(@Input_file, $_);
2452 # input files must exist:
2454 print STDERR "$Pgm: input file doesn't exist: $_\n";
2462 When saving an intermediate file (.hc or .s) away, we
2463 have to prefix any OPTIONS found in the original source file.
2466 sub saveIntermediate {
2467 local ($final,$suffix,$tmp)= @_ ;
2470 # $final -- root of where to park ${final}.${suffix}
2471 # $tmp -- temporary file where hsc put the intermediate file.
2473 # Delete the old file
2474 $to_do = "$Rm ${final}.${suffix}"; &run_something($to_do, "Removing old .${suffix} file");
2476 if ( $#File_options >= 0 ) { # OPTIONS found in Haskell source unit
2477 # Add OPTION comment to the top of the generated .${suffix} file
2478 open(TEMP, "> ${final}.${suffix}") || &tidy_up_and_die(1,"Can't open ${final}.${suffix}\n");
2479 print TEMP "/* OPTIONS " . join(' ',@File_options) . " */\n";
2481 print STDERR "Prepending OPTIONS: " . join(' ',@File_options) . " to ${final}.${suffix}\n" if $Verbose;
2483 $to_do = "$Cat $tmp >> ${final}.${suffix}";
2484 &run_something($to_do, "Saving copy of .${suffix} file");
2491 Command-line processor
2497 # can't use getopt(s); what we want is too complicated
2499 arg: while($_ = $Args[0]) {
2502 #---------- help -------------------------------------------------------
2503 if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; }
2505 #-----------version ----------------------------------------------------
2506 /^--version$/ && do { print STDERR "${PROJECTNAME}, version ${PROJECTVERSION}, patchlevel ${PROJECTPATCHLEVEL}\n"; exit $Status; };
2508 #---------- verbosity and such -----------------------------------------
2509 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
2511 #---------- what phases are to be run ----------------------------------
2512 /^-recomp/ && do { $Do_recomp_chkr = 1; next arg; };
2514 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
2515 # change the global default:
2516 # we won't run cat; we'll run the real thing
2518 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
2520 # stop after generating C
2522 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
2523 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
2525 # leave out actual C generation (debugging) [also turns off interface gen]
2527 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
2528 # _do_ generate an interface; usually used as: -noC -hi
2530 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
2531 # don't generate an interface (even if generating C)
2533 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
2534 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
2535 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
2536 # show/disable diffs if the interface file changes
2538 /^-E$/ && do { push(@CcBoth_flags, '-E');
2539 $Only_preprocess_C = 1;
2540 $Do_as = 0; $Do_lnkr = 0; next arg; };
2541 # stop after preprocessing C
2542 /^-M$/ && do { $Only_generate_deps = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2543 # only generate dependency information.
2544 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
2545 # stop after generating assembler
2547 /^-c$/ && do { $Do_lnkr = 0; next arg; };
2548 # stop after generating .o files
2550 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
2551 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
2552 # don't do consistency-checking after a link
2554 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', '');
2555 $Tmp_prefix = "$Tmp_prefix/ghc$$";
2556 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
2558 # use an alternate directory for temp files
2560 #---------- redirect output --------------------------------------------
2562 # -o <file>; applies to the last phase, whatever it is
2563 # "-o -" sends it to stdout
2564 # if <file> has a directory component, that dir must already exist
2566 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', '');
2568 # Hack, of the worst sort: don't do validation of
2569 # odir argument if you're using -M (dependency generation).
2571 if ( ! $Only_generate_deps && ! -d $Specific_output_dir) {
2572 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
2577 /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', '');
2578 if ($Specific_output_file ne '-'
2579 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
2580 local($dir_part) = $1;
2581 if (! -d $dir_part) {
2582 print STDERR "$Pgm: no such directory: $dir_part\n";
2588 # NB: -isuf not documented yet (because it doesn't work yet)
2589 /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', '');
2590 if ($Isuffix =~ /\./ ) {
2591 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
2596 /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', '');
2597 if ($Osuffix =~ /\./ ) {
2598 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
2603 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
2604 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', '');
2605 if ($Specific_hi_file ne '-'
2606 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
2607 local($dir_part) = $1;
2608 if (! -d $dir_part) {
2609 print STDERR "$Pgm: no such directory: $dir_part\n";
2615 # The suffix to use when looking for interface files
2616 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', '');
2617 if ($HiSuffix =~ /\./ ) {
2618 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
2622 # ToDo: remove, not a `normal' user thing to do (should be automatic)
2623 /^-hisuf-prelude$/ && do { $HiSuffix_prelude = &grab_arg_arg(*Args,'-hisuf-prelude', '');
2624 if ($HiSuffix =~ /\./ ) {
2625 print STDERR "$Pgm: -hisuf-prelude suffix shouldn't contain a .\n";
2629 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', '');
2630 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
2631 local($dir_part) = $1;
2632 if (! -d $dir_part) {
2633 print STDERR "$Pgm: no such directory: $dir_part\n";
2639 #-------------- scc & Profiling Stuff ----------------------------------
2641 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
2644 # generate auto SCCs on top level bindings
2645 # -auto-all = all top level bindings
2646 # -auto = only top level exported bindings
2647 $PROFauto = ( /-all/ )
2648 ? '-fauto-sccs-on-all-toplevs'
2649 : '-fauto-sccs-on-exported-toplevs';
2652 /^-caf-all/ && do { # generate individual CAF SCC annotations
2653 $PROFcaf = '-fauto-sccs-on-individual-cafs';
2656 /^-ignore-scc$/ && do {
2657 # forces ignore of scc annotations even if profiling
2658 $PROFignore_scc = '-W';
2661 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
2664 /^-unprof-scc-auto/ && do {
2665 # generate auto SCCs on top level bindings when not profiling.
2666 # Used to measure optimisation effects of presence of sccs.
2667 $UNPROFscc_auto = ( /-all/ )
2668 ? '-fauto-sccs-on-all-toplevs'
2669 : '-fauto-sccs-on-exported-toplevs';
2672 #--------- ticky/concurrent/parallel -----------------------------------
2673 # we sort out the details a bit later on
2675 /^-concurrent$/ && do { $CONCURing = 'c'; next arg; }; # concurrent Haskell
2676 /^-gransim$/ && do { $GRANing = 'g'; next arg; }; # GranSim
2677 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
2678 /^-parallel$/ && do { $PARing = 'p'; next arg; }; # parallel Haskell
2680 #-------------- "user ways" --------------------------------------------
2682 (/^-user-setup-([a-oA-Z])$/ ) &&
2684 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
2686 local($stuff) = $UserSetupOpts{$BuildTag};
2687 local(@opts) = split(/\s+/, $stuff);
2689 # feed relevant ops into the arg-processing loop (if any)
2690 unshift(@Args, @opts) if $#opts >= 0;
2694 #---------- set search paths for libraries and things ------------------
2696 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
2697 # prepends the items to the list); -I is for including C .h files.
2699 /^-i$/ && do { @Import_dir = (); # import path cleared!
2700 @SysImport_dir = ();
2701 print STDERR "WARNING: import paths cleared by `-i'\n";
2704 /^-i(.*)/ && do { local(@new_items)
2705 = split( /:/, &grab_arg_arg(*Args,'-i', $1));
2706 unshift(@Import_dir, @new_items);
2709 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; };
2710 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; };
2711 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; };
2713 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1);
2714 print STDERR "$Pgm: no such system library (-syslib): $syslib\n",
2715 $Status++ unless $syslib =~ /^(hbc|ghc|posix|contrib)$/;
2717 unshift(@SysImport_dir,
2719 ? "$InstSysLibDir/$syslib/imports"
2720 : "$TopPwd/hslibs/$syslib/src");
2722 if ( ${INSTALLING} ) {
2723 push(@SysLibrary_dir,
2724 ("$InstSysLibDir"));
2726 push(@SysLibrary_dir,
2727 ("$TopPwd/hslibs/$syslib"
2728 ,"$TopPwd/hslibs/$syslib/cbits"));
2731 push(@SysLibrary, "-lHS$syslib");
2732 push(@SysLibrary, "-lHS${syslib}_cbits")
2733 unless $syslib eq 'contrib'; #HACK! it has no cbits
2737 #=======================================================================
2738 # various flags that we can harmlessly send to one program or another
2739 # (we will later "reclaim" some of the compiler ones now sent to gcc)
2740 #=======================================================================
2742 #---------- this driver itself (ghc) -----------------------------------
2743 # these change what executable is run for each phase:
2744 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
2745 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
2746 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
2747 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
2748 /^-pgma(.*)$/ && do { $As = $1; next arg; };
2749 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
2750 /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; };
2752 #---------- the get-anything-through opts (all pgms) -------------------
2753 # these allow arbitrary option-strings to go to any phase:
2754 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
2755 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
2756 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
2757 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
2758 /^-optcpp(.*)$/ && do { push(@Cpp_define, $1); $Only_preprocess_hc = ($1 eq "-E"); next arg; };
2759 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
2760 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
2761 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
2762 /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; };
2764 #---------- Haskell C pre-processor (hscpp) ----------------------------
2765 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; };
2766 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; };
2768 /^-genSPECS/ && do { $Cpp_flag_set = 1;
2769 $genSPECS_flag = $_;
2772 #---------- post-Haskell "assembler"------------------------------------
2773 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
2774 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
2776 #---------- Haskell compiler (hsc) -------------------------------------
2778 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
2779 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
2781 /^-fhaskell-1\.3$/ && do { next arg; }; # a no-op right now
2783 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
2785 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
2786 # don't do stack checking using page fault `trick'.
2788 /^-fstack-check$/ && do { $StkChkByPageFaultOK = 0; next arg; };
2790 # have the compiler proper generate concurrent code,
2791 # really only used when you want to configure your own
2792 # special user compilation way. (Use -concurrent when
2793 # compiling `Concurrent Haskell' programs).
2795 # (ditto for -fgransim, fscc-profiling and -fticky-ticky)
2797 /^-fconcurrent$/ && do { push(@HsC_flags,$_); next arg; };
2798 /^-fscc-profiling$/ && do { push(@HsC_flags,$_); next arg; };
2799 /^-fticky-ticky$/ && do { push(@HsC_flags,$_); next arg; };
2800 /^-fgransim$/ && do { push(@HsC_flags,$_); next arg; };
2802 /^-user-prelude-force/ && do { # ignore if not -user-prelude
2805 /^-split-objs/ && do {
2806 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|rs6000|sparc)-/ ) {
2808 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
2813 push(@HsC_flags, "-fglobalise-toplev-names");
2814 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
2816 require('ghc-split.prl')
2817 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
2822 && do { push(@HsC_flags, $_);
2823 push(@HsP_flags, '-N');
2825 # push(@HsC_flags, '-fshow-import-specs');
2829 /^-fspeciali[sz]e-unboxed$/
2830 && do { $Oopt_DoSpecialise = '-fspecialise';
2831 $Oopt_SpecialiseUnboxed = '-fspecialise-unboxed';
2834 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
2835 /^-fno-speciali[sz]e$/
2836 && do { $Oopt_DoSpecialise = ''; next arg; };
2839 # Now the foldr/build options, which are *on* by default (for -O).
2842 && do { $Oopt_FoldrBuild = 1;
2843 $Oopt_FB_Support = '-fdo-arity-expand';
2847 /^-fno-foldr-build$/
2848 && do { $Oopt_FoldrBuild = 0;
2849 $Oopt_FB_Support = '';
2852 /^-fno-foldr-build-rule$/
2853 && do { $Oopt_FoldrBuild = 0;
2856 /^-fno-enable-tech$/
2857 && do { $Oopt_FB_Support = '';
2860 /^-fno-snapback-to-append$/
2861 && do { $Oopt_FoldrBuildInline .= ' -fdo-not-fold-back-append ';
2864 # --------------- Renamer -------------
2867 /^-fno-prune-tydecls$/ && do { push(@HsC_flags, $_); next arg; };
2868 /^-fno-prune-instdecls$/ && do { push(@HsC_flags, $_); next arg; };
2872 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
2873 /^-fvia-[cC]$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
2877 /^(-funfolding-use-threshold)(.*)$/
2878 && do { $Oopt_UnfoldingUseThreshold = $1 . &grab_arg_arg(*Args,$1, $2);
2881 /^(-fmax-simplifier-iterations)(.*)$/
2882 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2);
2885 /^-fno-pedantic-bottoms$/
2886 && do { $Oopt_PedanticBottoms = ''; next arg; };
2888 /^-fdo-monad-eta-expansion$/
2889 && do { $Oopt_MonadEtaExpansion = $_; next arg; };
2891 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
2892 && do { push(@HsC_flags, $_); next arg; };
2894 /^(-freturn-in-regs-threshold)(.*)$/
2895 && do { local($what) = $1;
2896 local($num) = &grab_arg_arg(*Args,$what, $2);
2897 if ($num < 2 || $num > 8) {
2898 die "Bad experimental flag: $_\n";
2900 $HscOut = '-C='; # force using C compiler
2901 push(@HsC_flags, "$what$num");
2902 push(@CcRegd_flags, "-D__STG_REGS_AVAIL__=$num");
2906 # --------------- Warnings etc. ------
2908 /^-f(show-import-specs)/
2909 && do { push(@HsC_flags, $_); next arg; };
2911 # for now, just -fwarn-name-shadowing
2912 /^-fwarn-(.*)$/ && do { push(@HsC_flags, $_); next arg; };
2914 /^-fno-warn-(.*)$/ && do { push(@HsC_flags, "-fno-warn-$1"); next arg; };
2916 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
2917 &squashHscFlag("-f$1");
2920 # --------------- platform specific flags (for gcc mostly) ----------------
2922 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes,
2923 # for 2.6.x..?, does not apply for 2.7.2
2925 unshift(@CcBoth_flags, ( $_ ));
2928 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
2929 && do { # for GCC for SPARCs
2930 unshift(@CcBoth_flags, ( $_ ));
2933 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
2934 $StolenX86Regs = $1;
2937 #*************** ... and lots of debugging ones (form: -d* )
2939 # -d(no-)core-lint is done this way so it is turn-off-able.
2940 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
2941 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
2942 # Ditto for STG lint
2943 /^-dstg-lint/ && do { $StgLint = '-dstg-lint'; next arg; };
2944 /^-dno-stg-lint/ && do { $StgLint = ''; next arg; };
2946 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
2947 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
2948 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
2949 /^-dshow-rn-stats/ && do { push(@HsC_flags, $_); next arg; };
2950 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
2951 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
2952 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
2953 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
2955 #*************** ... and now all these -R* ones for its runtime system...
2957 /^-Rscale-sizes?(.*)/ && do {
2958 $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1);
2961 /^(-H|-Rmax-heapsize)(.*)/ && do {
2962 local($heap_size) = &grab_arg_arg(*Args,$1, $2);
2963 if ($heap_size =~ /(\d+)[Kk]$/) {
2964 $heap_size = $1 * 1000;
2965 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
2966 $heap_size = $1 * 1000 * 1000;
2967 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
2968 $heap_size = $1 * 1000 * 1000 * 1000;
2970 if ($heap_size <= 0) {
2971 print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n";
2972 $Specific_heap_size = 0;
2974 # if several heap sizes given, take the largest...
2975 } elsif ($heap_size >= $Specific_heap_size) {
2976 $Specific_heap_size = $heap_size;
2978 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n";
2982 /^-(K|Rmax-(stk|stack)size)(.*)/ && do {
2984 local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3);
2985 if ($stk_size =~ /(\d+)[Kk]$/) {
2986 $stk_size = $1 * 1000;
2987 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
2988 $stk_size = $1 * 1000 * 1000;
2989 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
2990 $stk_size = $1 * 1000 * 1000 * 1000;
2992 if ($stk_size <= 0) {
2993 print STDERR "$Pgm: resetting stack-size to zero!!! $stk_size\n";
2994 $Specific_stk_size = 0;
2996 # if several stack sizes given, take the largest...
2997 } elsif ($stk_size >= $Specific_stk_size) {
2998 $Specific_stk_size = $stk_size;
3000 print STDERR "$Pgm: ignoring stack-size-setting option ($flag $stk_size)...not the largest seen\n";
3004 /^-Rgc-stats$/ && do { $CollectingGCstats++;
3005 # the two RTSs do this diff ways; we will try to compensate
3008 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
3010 #---------- C high-level assembler (gcc) -------------------------------
3011 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
3013 # -dgcc-lint is a useful way of making GCC very fussy.
3014 # From alan@spri.levels.unisa.edu.au (Alan Modra).
3015 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
3016 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
3017 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
3019 # inject "#include <wurble>" into the compiler's C output!
3021 /^-#include(.*)/ && do {
3022 local($to_include) = &grab_arg_arg(*Args,'-#include', $1);
3023 push(@CcInjects, "#include $to_include\n");
3026 #---------- Linker (gcc, really) ---------------------------------------
3028 /^-static$/ && do { push(@Ld_flags, $_); next arg; };
3030 #---------- mixed cc and linker magic ----------------------------------
3031 # this optimisation stuff is finally sorted out later on...
3033 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
3035 /^-O[1-2]?$/ && do {
3036 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
3037 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
3039 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
3042 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
3044 /^-Ofile(.*)/ && do {
3046 local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1);
3047 @HsC_minusO3_flags = ();
3049 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
3052 s/\#.*//; # death to comments
3053 s/[ \t]+//g; # death to whitespace
3054 next if /^$/; # ditto, blank lines
3055 s/([()*{}])/\\$1/g; # protect shell metacharacters
3057 push(@CcBoth_flags, $1);
3059 push(@HsC_minusO3_flags, $_);
3065 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
3066 # in the consistency info
3070 #---------- linking .a file --------------------------------------------
3072 /^-Main(.*)/ && do {
3073 # specifies main or mainPrimIO to be linked
3077 #---------- catch unrecognized flags -----------------------------------
3080 print STDERR "$Pgm: unrecognised option: $_\n";
3086 } # end of processArgs