2 % (c) The GRASP/AQUA Project, Glasgow University, 1992-1997
5 This is the driver script for the Glasgow Haskell compilation system.
6 It is written in \tr{perl}. The first section includes a long
7 ``usage'' message that describes how the driver is supposed to work.
9 %************************************************************************
11 \section[Driver-usage]{Usage message}
13 %************************************************************************
16 ($Pgm = $0) =~ s|.*/||;
17 $ShortUsage = "\nUsage: For basic information, try the `-help' option.\n";
18 $LongUsage = "\n" . <<EOUSAGE;
19 Use of the Glorious Haskell Compilation System driver:
21 $Pgm [command-line-options-and-input-files]
23 ------------------------------------------------------------------------
24 This driver ($Pgm) guides each input file through (some of the)
25 possible phases of a compilation:
27 - unlit: extract code from a "literate program"
28 - hscpp: run code through the C pre-processor (if -cpp flag given)
29 - hsc: run the Haskell compiler proper
30 - gcc: run the C compiler (if compiling via C)
31 - as: run the assembler
34 For each input file, the phase to START with is determined by the
36 - .lhs literate Haskell: unlit
37 - .hs illiterate Haskell: hsc
38 - .hc C from the Haskell compiler: gcc
39 - .c C not from the Haskell compiler: gcc
40 - .s assembly language: as
41 - other passed directly to the linker: ld
43 If no files are given on the command line, input is taken from
44 standard input, and processing is as for an .hs file. (All output is
45 to stdout or stderr, however).
47 The phase at which to STOP processing is determined by a command-line
49 -E stop after generating preprocessed, de-litted Haskell (used in conjunction with -cpp)
50 -C stop after generating C (.hc output)
51 -S stop after generating assembler (.s output)
52 -c stop after generating object files (.o output)
54 Other commonly-used options are:
56 -O An `optimising' package of compiler flags, for faster code
58 -prof Compile for cost-centre profiling
59 (add -auto for automagic cost-centres on top-level functions)
61 -fglasgow-exts Allow Glasgow extensions (unboxed types, etc.)
63 -H14m Increase compiler's heap size
65 -M Output the Makefile rules recording the
66 dependencies of a list of Haskell files.
67 (ghc driver script calls upon the help of a
68 compatible mkdependHS script to do the actual
71 The User's Guide has more information about GHC's *many* options.
73 Given the above, here are some TYPICAL invocations of $Pgm:
75 # compile a Haskell module to a .o file, optimising:
77 # link three .o files into an executable called "test":
78 % $Pgm -o test Foo.o Bar.o Baz.o
79 # compile a Haskell module to C (a .hc file), using a bigger heap:
80 % $Pgm -C -H16m Foo.hs
81 # compile Haskell-produced C (.hc) to assembly language:
83 ------------------------------------------------------------------------
87 %************************************************************************
89 \section[Driver-init]{Initialisation}
91 %************************************************************************
93 The driver script need to be told where to find these executables, so
94 in the course of building the driver `executable', make-variables holding
95 these are prepended to the de-litted version of this file. The variables are:
100 HOSTPLATFORM TARGETPLATFORM
102 ProjectName ProjectVersion ProjectVersionInt ProjectPatchLevel
106 bindir libdir libexecdir datadir
110 GHC_LIB_DIR GHC_RUNTIME_DIR GHC_UTILS_DIR GHC_INCLUDE_DIR
112 GHC_OPT_HILEV_ASM GhcWithNativeCodeGen
114 GHC_UNLIT GHC_HSCPP GHC_HSC GHC_SYSMAN
118 WAY_*_NAME WAY_*_HC_OPTS
124 Establish what executables to run for the various phases, what the
125 default options are for those phases, and other similar boring stuff.
128 select(STDERR); $| = 1; select(STDOUT); # no STDERR buffering, please.
130 $TargetPlatform = $TARGETPLATFORM;
132 $TopPwd = "${TOP_PWD}";
133 $InstBinDirGhc = "${bindir}";
134 $InstLibDirGhc = "${libdir}";
136 # Normally the same as InstLibDirGhc, but we accommodate
137 # for it being separate.
139 $InstLibExecDirGhc = "${libexecdir}";
140 $InstDataDirGhc = "${datadir}";
142 $Status = 0; # just used for exit() status
145 # set up signal handler
146 sub quit_upon_signal { &tidy_up_and_die(1, ''); }
147 $SIG{'INT'} = 'quit_upon_signal';
148 $SIG{'QUIT'} = 'quit_upon_signal';
150 # where to get "require"d .prl files at runtime (poor man's dynamic loading)
151 # (use LIB, not DATA, because we can't be sure of arch-independence)
152 @INC = ( ( $INSTALLING ) ? $InstLibDirGhc
153 : "$TopPwd/${CURRENT_DIR}" );
155 if ( $ENV{'TMPDIR'} ) { # where to make tmp file names
156 $Tmp_prefix = ($ENV{'TMPDIR'} . "/ghc$$");
158 print STDERR "TMPDIR has not been set to anything useful!\n" if (${TMPDIR} eq '');
159 $Tmp_prefix ="${TMPDIR}/ghc$$"; # TMPDIR set via Makefile when booting..
160 $ENV{'TMPDIR'} = ${TMPDIR}; # set the env var as well
163 # Some shells run into real trouble when command line and environment
164 # gets big (e.g., cmd lines of >4K to /bin/sh causes havoc on our
165 # Solaris-2.5.1 boxes - even though sysconf(_SC_ARG_MAX) reports 1M ...).
166 # To work around any such */bin/sh* problems, we will scribble such
167 # awfully long command lines into a temp file and exec that temp file
168 # with $(REAL_SHELL) (don't use the SHELL variable directly as this
169 # will normally get you the wrong thing when the driver is invoked
170 # from within `make'). If the REAL_SHELL variable isn't set, you'll
171 # get SHELL. This is all a terrible hack. (in case you hadn't reached
172 # the same conclusion by now :-)
176 if ( ! $ENV{'REAL_SHELL'} ) {
177 $ENV{'REAL_SHELL'} = $ENV{'SHELL'};
180 @Files_to_tidy = (); # files we nuke in the case of abnormal termination
182 $Unlit = ( $INSTALLING ) ? "$InstLibExecDirGhc/unlit"
183 : "$TopPwd/${CURRENT_DIR}/${GHC_UNLIT}";
187 $Diff = $CONTEXT_DIFF;
192 $HsCpp = # but this is re-set to "cat" (after options) if -cpp not seen
193 ( $INSTALLING ) ? "$InstLibExecDirGhc/hscpp"
194 : "$TopPwd/${CURRENT_DIR}/${GHC_HSCPP}";
197 $genSPECS_flag = ''; # See ../utils/hscpp/hscpp.prl
198 $HsC = ( $INSTALLING ) ? "$InstLibExecDirGhc/hsc"
199 : "$TopPwd/${CURRENT_DIR}/${GHC_HSC}";
201 # For PVM fiends only
202 $SysMan = ( $INSTALLING ) ? "$InstLibExecDirGhc/SysMan"
203 : "$TopPwd/${CURRENT_DIR}/${GHC_SYSMAN}";
208 # HsC_rts_flags: if we want to talk to the LML runtime system
209 # NB: we don't use powers-of-2 sizes, because this may do
210 # terrible things to cache behavior.
212 $Specific_heap_size = 6 * 1000 * 1000;
213 $Specific_stk_size = 1000 * 1000;
214 $Scale_sizes_by = 1.0;
218 The variables set by @setupOptFlags@ represent parts of the
219 -O/-O2/etc ``templates,'' which are filled in later, using these.
220 These are the default values, which may be changed by user flags.
224 $Oopt_UnfoldingUseThreshold = '-fsimpl-uf-use-threshold3';
225 $Oopt_MaxSimplifierIterations = '-fmax-simplifier-iterations4';
226 $Oopt_PedanticBottoms = '-fpedantic-bottoms'; # ON by default
227 $Oopt_MonadEtaExpansion = '';
228 $Oopt_FinalStgProfilingMassage = '';
230 $Oopt_SpecialiseUnboxed = '';
231 $Oopt_DoSpecialise = '-fspecialise';
232 $Oopt_FoldrBuild = 0; # *Off* by default!
233 $Oopt_FB_Support = ''; # was '-fdo-arity-expand';
234 # $Oopt_FoldrBuildWW = 0; # Off by default
235 $Oopt_FoldrBuildInline = ''; # was '-fdo-inline-foldr-build';
236 $Oopt_ShowSimplifierProgress = '';
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 Warning packages that are controlled by -W and -Wall. The 'standard'
270 warnings that you get all the time are
272 -fwarn-overlapping-patterns
273 -fwarn-missing-methods
274 -fwarn-duplicate-exports
276 these are turned off by -Wnot.
279 @StandardWarnings = ('-fwarn-overlapping-patterns',
280 '-fwarn-missing-methods',
281 '-fwarn-duplicate-exports');
282 @MinusWOpts = (@StandardWarnings,
283 '-fwarn-incomplete-patterns',
284 '-fwarn-unused-binds',
285 '-fwarn-unused-imports');
286 @MinusWallOpts = (@MinusWOpts,
287 '-fwarn-unused-matches',
288 '-fwarn-name-shadowing');
291 What options \tr{-user-setup-a} turn into (user-defined ``packages''
293 of options). Note that a particular user-setup implies a particular
294 Prelude ({\em including} its interface file(s)).
296 $BuildTag = ''; # default is sequential build w/ Appel-style GC
298 %BuildDescr = (# system ways begin
299 '', 'normal sequential',
303 '_mc', "$WAY_mc_NAME",
304 '_mr', "$WAY_mr_NAME",
305 '_mt', "$WAY_mt_NAME",
306 '_mp', "$WAY_mp_NAME",
307 '_mg', "$WAY_mg_NAME",
308 '_2s', "$WAY_2s_NAME",
309 '_1s', "$WAY_1s_NAME",
310 '_du', "$WAY_du_NAME",
328 '_B', "$WAY_B_NAME" );
330 # these are options that are "fed back" through the option processing loop
334 '_a', "$WAY_a_HC_OPTS",
335 '_b', "$WAY_b_HC_OPTS",
336 '_c', "$WAY_c_HC_OPTS",
337 '_d', "$WAY_d_HC_OPTS",
338 '_e', "$WAY_e_HC_OPTS",
339 '_f', "$WAY_f_HC_OPTS",
340 '_g', "$WAY_g_HC_OPTS",
341 '_h', "$WAY_h_HC_OPTS",
342 '_i', "$WAY_i_HC_OPTS",
343 '_j', "$WAY_j_HC_OPTS",
344 '_k', "$WAY_k_HC_OPTS",
345 '_l', "$WAY_l_HC_OPTS",
346 '_m', "$WAY_m_HC_OPTS",
347 '_n', "$WAY_n_HC_OPTS",
348 '_o', "$WAY_o_HC_OPTS",
349 '_A', "$WAY_A_HC_OPTS",
350 '_B', "$WAY_B_HC_OPTS",
353 '_p', "$WAY_p_HC_OPTS",
354 '_t', "$WAY_t_HC_OPTS",
355 '_u', "$WAY_u_HC_OPTS",
356 '_mc', "$WAY_mc_HC_OPTS",
357 '_mr', "$WAY_mr_HC_OPTS",
358 '_mt', "$WAY_mt_HC_OPTS",
359 '_mp', "$WAY_mp_HC_OPTS",
360 '_mg', "$WAY_mg_HC_OPTS",
361 '_2s', "$WAY_2s_HC_OPTS",
362 '_1s', "$WAY_1s_HC_OPTS",
363 '_du', "$WAY_B_HC_OPTS" );
367 Import/include directories (\tr{-I} options) are sufficiently weird to
368 require special handling.
371 @Import_dir = ('.'); #-i things
372 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
374 # where to look for interface files (system hi's, i.e., prelude and syslibs)
375 @SysImport_dir = ( $INSTALLING )
376 ? ( "$InstLibDirGhc/imports/std" )
377 : ( "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std" );
379 # We need to look in ghc/ and glaExts/ when searching for implicitly needed .hi files, but
380 # we should really *not* look there for explicitly imported modules.
382 $GhcVersionInfo = $ProjectVersionInt;
383 $Haskell1Version = 4; # i.e., Haskell 1.4
386 @UserLibrary_dir= (); #-L things;...
387 @UserLibrary = (); #-l things asked for by the user
389 @SysLibrary_dir = ( ( $INSTALLING ) #-syslib things supplied by the system
391 : ( "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR"
392 , "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/gmp"
393 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std"
394 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std/cbits"
397 @SysLibrary = (); # will be built up as we go along
399 $TopClosureFile # defaults to 1.2 one; will be mangled later
400 = ( $INSTALLING) ? "$InstLibDirGhc/TopClosureXXXX.o"
401 : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/main/TopClosureXXXX.o";
403 # make depend for Haskell
405 = ( $INSTALLING ) ? "$InstBinDirGhc/mkdependHS"
406 : "$TopPwd/$CURRENT_DIR/$GHC_UTILS_DIR/mkdependHS/mkdependHS";
408 @MkDependHS_flags = ();
410 # do_link flag should not be reset while rescanning the cmd-line.
412 $Specific_output_dir = ''; # set by -odir <dir>
413 $Specific_output_file = ''; # set by -o <file>; "-" for stdout
416 Function to initialise the per-compilation-unit globals that
417 are used to guide and control the invocation of the different phases.
420 sub initDriverGlobals {
422 # reset the following options:
423 # RTS flags to use while compiling
425 @HsP_flags = (); # these are the flags destined solely for
426 # the flex/yacc parser
431 The optimisations/etc to be done by the compiler are {\em normally}
432 expressed with a \tr{-O} (or \tr{-O2}) flag, or by its absence.
435 $OptLevel = 0; # no -O == 0; -O == 1; -O2 == 2; -Ofile == 3
436 $MinusO2ForC = 0; # set to 1 if -O2 should be given to C compiler
437 $StolenX86Regs = 4; # **HACK*** of the very worst sort
441 @CcBoth_flags = ('-S'); # flags for *any* C compilation
444 # GCC flags: those for all files, those only for .c files; those only for .hc files
445 @CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__');
446 @CcRegd_flags_c = ();
447 @CcRegd_flags_hc = ();
449 @Import_dir = ('.'); #-i things
450 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
455 We are given a list of files with various presumably-known suffixes
456 (unknown-suffix files go straight to the linker). For each file, we
457 begin by assuming that we'll run every phase over it. However: (1)
458 global flags (\tr{-c}, \tr{-S}, etc.) tell us not to run any phase
459 past a certain point; and (2) the file's suffix tells us what phase to
460 start with. Linking is weird and kept track of separately.
462 Here are the initial defaults applied to all files:
464 $Cpp_flag_set = 0; # (hack)
465 $Only_preprocess_C = 0; # pretty hackish
466 $Only_preprocess_hc = 0; # ditto
467 $Only_generate_deps = 0; # "
468 $PostprocessCcOutput = 0;
470 # native code-gen or via C?
471 $HaveNativeCodeGen = $GhcWithNativeCodeGen;
472 $HscOut = '-C='; # '-C=' ==> .hc output; '-S=' ==> .s output; '-N=' ==> neither
474 if $HaveNativeCodeGen && $TargetPlatform =~ /^(alpha|sparc)-/;
475 # TEMP: disable x86 if $HaveNativeCodeGen && $TargetPlatform =~ /^(i386|alpha|sparc)-/;
476 $ProduceHi = '-hifile=';
481 $CollectingGCstats = 0;
482 $CollectGhcTimings = 0;
483 $DEBUGging = ''; # -DDEBUG and all that it entails (um... not really)
484 $PROFing = ''; # set to p or e if profiling
485 $PROFgroup = ''; # set to group if an explicit -Ggroup specified
486 $PROFauto = ''; # set to relevant hsc flag if -auto or -auto-all
487 $PROFcaf = ''; # set to relevant hsc flag if -caf-all
488 $PROFignore_scc = ''; # set to relevant parser flag if explicit sccs ignored
489 $UNPROFscc_auto = ''; # set to relevant hsc flag if forcing auto sccs without profiling
490 $TICKYing = ''; # set to t if compiling for ticky-ticky profiling
491 $PARing = ''; # set to p if compiling for PAR
492 $CONCURing = ''; # set to c if compiling for CONCURRENT
493 $GRANing = ''; # set to g if compiling for GRAN
494 $StkChkByPageFaultOK = 1; # may be set to 0 (false) for some builds
495 $Specific_hi_file = ''; # set by -ohi <file>; "-" for stdout
496 $Specific_dump_file = ''; # set by -odump <file>; "-" for stdout
497 $Using_dump_file = 0;
499 $Osuffix = ''; # default: use the normal suffix for that kind of output
501 $HiSuffix_prelude = '';
502 $Do_recomp_chkr = 0; # don't use the recompilatio checker unless asked
503 $Do_cc = -1; # a MAGIC indeterminate value; will be set to 1 or 0.
506 $Keep_hc_file_too = 0;
507 $Keep_s_file_too = 0;
508 $UseGhcInternals = 0; # if 1, may use GHC* modules
511 $Dump_parser_output = 0;
513 $Dump_asm_splitting_info = 0;
514 $NoImplicitPrelude = 0;
517 } # end of initDriverGlobals (Sigh)
519 # we split the argv passed to the driver into three:
524 # and files to be linked...
530 # cmd line options prefixing the unit we're compiling
535 We inject consistency-checking information into \tr{.hc} files (both
536 when created by the Haskell compiler and when compiled by the C
537 compiler), so that we can check that an executable is made from
538 consistently-built pieces. (The check is normally done just after
539 linking.) The checking is done by introducing/munging
540 \tr{what(1)}-style strings. Anyway, here are the relevant global
541 variables and their defaults:
543 $LinkChk = 1; # set to 0 if the link check should *not* be done
545 # major & minor version numbers; major numbers must always agree;
546 # minor disagreements yield a warning.
547 $HsC_major_version = 33;
548 $HsC_minor_version = 0;
549 $Cc_major_version = 36;
550 $Cc_minor_version = 1;
552 # options: these must always agree
553 $HsC_consist_options = ''; # we record, in this order:
554 # Build tag; debugging?
555 $Cc_consist_options = ''; # we record, in this order:
556 # Build tag; debugging?
559 %************************************************************************
561 \section[Driver-parse-argv]{Munge the command-line options}
563 %************************************************************************
565 Now slurp through the arguments.
568 &initDriverGlobals();
569 &splitCmdLine(@ARGV);
570 # Run through the cmd-line first time.
571 &processArgs(@Cmd_opts);
573 # Check to see if driver is only in the business
574 # to generate dependencies
575 if ( $Status == 0 && $Only_generate_deps ) {
577 push (@MkDependHS_flags, "-o$Osuffix") if $Osuffix;
578 push (@MkDependHS_flags, "-s$BuildTag") if $BuildTag;
579 push (@MkDependHS_flags, "-D__HASKELL1__=$Haskell1Version");
580 # They're not (currently) needed, but we need to quote any -#include options
581 foreach (@Cmd_opts) {
582 s/-#include.*$/'$&'/g;
584 local($to_do) = "$MkDependHS @MkDependHS_flags -- @Cmd_opts -- @Input_file" ;
585 &run_something($to_do, 'Haskell dependencies');
589 # if there are several input files,
590 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
591 # (except if linking, of course)
593 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
594 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
595 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
596 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
597 print STDERR "\tPerhaps the -odir option will do what you want.\n";
602 # check for various pathological -o and -odir combinations...
603 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
604 if ($Specific_output_file eq '-') {
605 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
607 } else { # amalgamate...
608 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
609 # ToDo: check we haven't got a junk name now...
610 $Specific_output_dir = ''; # reset
614 # crash and burn if there were errors
616 print STDERR $ShortUsage;
621 %************************************************************************
623 \section[Driver-post-argv-mangling]{Setup after reading options}
625 %************************************************************************
627 %************************************************************************
629 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
631 %************************************************************************
633 We come now to the default ``wads of options'' that are turned on by
634 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
635 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
638 The user can also specify his/her own list of options in a file; in
639 that case, the work is already done (see stuff about @minusO3@,
642 GHC allows very precise control of what happens during a compilation.
643 Core-to-Core and STG-to-STG passes can be run in any order, as many
644 times as you like. Individual transformations can be turned on or
647 Sadly, however, there are some interdependencies \& Things You Must
648 Not Do. Here is the list.
652 \item[\tr{-fspecialise}:]
653 The specialiser must have dependency-analysed input; but if you run
654 the simplifier to do this, you must not let it toss away unused
655 bindings! (The typechecker conveys some specialisation info via
656 ``unused'' bindings...)
658 \item[\tr{-ffloat-inwards}:]
659 Floating inwards should be done before strictness analysis, because
660 the latter will give better results.
662 \item[\tr{-fstatic-args}:]
663 The static-arguments-transformation pass {\em must} have the
664 simplifier run right after it.
666 \item[\tr{-fcalc-inlinings[12]}:]
667 Not required, but there may be slight gains by re-simplifying after
668 this is done. (You could then \tr{-fcalc-inlinings} again, just for
671 \item[\tr{-ffull-laziness}:]
672 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
673 that's run. (Um, well, howzabout the simplifier just once more...)
678 \item[\tr{-fupdate-analysis}:]
679 It really really wants to be the last STG-to-STG pass that is run.
684 sub setupOptimiseFlags {
690 '-ffloat-lets-exposing-whnf',
691 '-ffloat-primops-ok',
694 # '-fdo-lambda-eta-expansion', # too complicated
696 # '-flet-to-case', # no strictness analysis, so...
697 $Oopt_PedanticBottoms,
698 # $Oopt_MonadEtaExpansion, # no thanks
700 # These two work fine, if you really want no simplification at all,
701 # for bizarre test reasons. But you get really terrible code if you use them,
702 # for example: let x = e in x
703 # with dozens of redundant thunks etc. So I'm leaving them out.
705 # '-fsimpl-uf-use-threshold0',
706 # '-fessential-unfoldings-only',
708 $Oopt_UnfoldingUseThreshold,
709 $Oopt_MaxSimplifierIterations,
710 $Oopt_ShowSimplifierProgress,
713 # '-ffull-laziness', # removed 95/04 WDP following Andr\'e's lead
715 $Oopt_FinalStgProfilingMassage
718 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
720 '-fdo-eta-reduction',
722 # initial simplify: mk specialiser happy: minimum effort please
726 '-fkeep-spec-pragma-ids', # required before specialisation
728 # I don't understand why we want -fessential-unfoldings-only here
729 # If we have it, the following nasty thing happens:
733 # where "*" means exported.
734 # In the essential-unfoldings pass we still substitute f for g
735 # but we don't substitute E for f first. So we get
739 # The g=f will get reverse-substituted later, but it's untidy.
741 # '-fessential-unfoldings-only',
742 # '-fsimpl-uf-use-threshold0',
744 '-fmax-simplifier-iterations1',
745 $Oopt_PedanticBottoms,
748 ($Oopt_DoSpecialise) ? (
749 '-fspecialise-overloaded',
750 $Oopt_SpecialiseUnboxed,
754 '-fsimplify', # need dependency anal after specialiser ...
755 '[', # need tossing before calc-inlinings ...
757 '-ffloat-lets-exposing-whnf',
758 '-ffloat-primops-ok',
762 # '-fdo-eta-reduction',
763 '-fdo-lambda-eta-expansion',
765 $Oopt_PedanticBottoms,
766 $Oopt_MonadEtaExpansion,
767 $Oopt_UnfoldingUseThreshold,
768 $Oopt_MaxSimplifierIterations,
769 $Oopt_ShowSimplifierProgress,
772 #LATER: '-fcalc-inlinings1', -- pointless for 2.01
774 # ($Oopt_FoldrBuildWW) ? (
775 # '-ffoldr-build-ww-anal',
776 # '-ffoldr-build-worker-wrapper',
780 # '-ffloat-lets-exposing-whnf',
781 # '-ffloat-primops-ok',
785 # '-fdo-eta-reduction',
786 # '-fdo-lambda-eta-expansion',
788 # $Oopt_PedanticBottoms,
789 # $Oopt_MonadEtaExpansion,
790 # $Oopt_UnfoldingUseThreshold,
791 # $Oopt_MaxSimplifierIterations,
792 # $Oopt_ShowSimplifierProgress,
796 # this pass-ordering sequence was agreed by Simon and Andr\'e
797 # (WDP 94/07, 94/11).
800 ($Oopt_FoldrBuild) ? (
801 '-ffoldr-build-on', # desugar list comprehensions for foldr/build
805 '-fignore-inline-pragma', # **** NB!
806 '-fdo-foldr-build', # NB
808 '-ffloat-lets-exposing-whnf',
809 '-ffloat-primops-ok',
813 # '-fdo-eta-reduction',
814 '-fdo-lambda-eta-expansion', # After full laziness
816 $Oopt_PedanticBottoms,
817 $Oopt_MonadEtaExpansion,
818 $Oopt_UnfoldingUseThreshold,
819 $Oopt_MaxSimplifierIterations,
820 $Oopt_ShowSimplifierProgress,
829 '-ffloat-lets-exposing-whnf',
830 '-ffloat-primops-ok',
834 '-fdo-eta-reduction',
835 '-fdo-lambda-eta-expansion',
837 ($Oopt_FoldrBuildInline),
838 # you need to inline foldr and build
839 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
840 # but do reductions if you see them!
841 $Oopt_PedanticBottoms,
842 $Oopt_MonadEtaExpansion,
843 $Oopt_UnfoldingUseThreshold,
844 $Oopt_MaxSimplifierIterations,
845 $Oopt_ShowSimplifierProgress,
853 '-ffloat-lets-exposing-whnf',
854 '-ffloat-primops-ok',
858 # '-fdo-eta-reduction',
859 '-fdo-lambda-eta-expansion',
861 '-flet-to-case', # Aha! Only done after strictness analysis
862 $Oopt_PedanticBottoms,
863 $Oopt_MonadEtaExpansion,
864 $Oopt_UnfoldingUseThreshold,
865 $Oopt_MaxSimplifierIterations,
866 $Oopt_ShowSimplifierProgress,
871 # Case-liberation for -O2. This should be after
872 # strictness analysis and the simplification which follows it.
876 # : "-fliberate-case -fsimplify [ $Oopt_FB_Support -ffloat-lets-exposing-whnf -ffloat-primops-ok -fcase-of-case -fdo-case-elim -fcase-merge -fdo-eta-reduction -fdo-lambda-eta-expansion -freuse-con -flet-to-case $Oopt_PedanticBottoms $Oopt_MonadEtaExpansion $Oopt_UnfoldingUseThreshold $Oopt_MaxSimplifierIterations $Oopt_ShowSimplifierProgress ]" ),
878 # Final clean-up simplification:
883 '-ffloat-lets-exposing-whnf',
884 '-ffloat-primops-ok',
888 # '-fdo-eta-reduction',
889 '-fdo-lambda-eta-expansion',
892 '-fignore-inline-pragma', # **** NB!
893 $Oopt_FoldrBuildInline,
894 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
895 # but still do reductions if you see them!
896 $Oopt_PedanticBottoms,
897 $Oopt_MonadEtaExpansion,
898 $Oopt_UnfoldingUseThreshold,
899 $Oopt_MaxSimplifierIterations,
900 $Oopt_ShowSimplifierProgress,
905 #LATER: '-fcalc-inlinings2', -- pointless for 2.01
910 $Oopt_FinalStgProfilingMassage,
916 # SPECIAL FLAGS for -O2
924 Sort out what we're going to do about optimising. First, the @hsc@
925 flags and regular @cc@ flags to worry about:
927 if ( $OptLevel <= 0 ) {
929 # for this level, we tell the parser -fignore-interface-pragmas
930 push(@HsC_flags, '-fignore-interface-pragmas');
931 # and tell the compiler not to produce them
932 push(@HsC_flags, '-fomit-interface-pragmas');
934 &add_Hsc_flags( @HsC_minusNoO_flags );
935 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
937 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
939 &add_Hsc_flags( @HsC_minusO_flags );
940 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
941 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
942 # but it *is* useful in compiling the garbage collectors (so said
943 # Patrick many moons ago...).
945 } else { # -Ofile, then...
947 &add_Hsc_flags( @HsC_minusO3_flags );
948 push(@HsC_flags, $Oopt_FinalStgProfilingMassage) if $Oopt_FinalStgProfilingMassage;
950 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
953 } # setupOptimiseFlags
957 %************************************************************************
959 \subsection{Check for consistency, etc.}
961 %************************************************************************
963 Sort out @$BuildTag@, @$PROFing@, @$CONCURing@, @$PARing@,
964 @$GRANing@, @$TICKYing@:
966 sub setupBuildFlags {
969 # PROFILING stuff after argv mangling:
971 # warn about any scc exprs found (in case scc used as identifier)
972 push(@HsP_flags, '-W');
974 # add -auto sccs even if not profiling !
975 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
978 push(@HsC_flags, $PROFauto) if $PROFauto;
979 push(@HsC_flags, $PROFcaf) if $PROFcaf;
980 #push(@HsC_flags, $PROFdict) if $PROFdict;
982 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
984 # Ignore user sccs when auto annotating, but warn when doing so.
985 $PROFignore_scc = '-W' if $PROFauto;
987 push(@HsP_flags, (($PROFignore_scc) ? $PROFignore_scc : '-S'));
989 if ( $SplitObjFiles ) {
990 # can't split with cost centres -- would need global and externs
991 print STDERR "$Pgm: WARNING: splitting objects when profiling will *BREAK* if any _scc_s are present!\n";
992 # (but it's fine if there aren't any _scc_s around...)
993 # $SplitObjFiles = 0; # unset
994 #not an error: for now: $Status++;
997 #if ( $BuildTag ne '' ) {
998 # local($b) = $BuildDescr{$BuildTag};
999 # if ($CONCURing eq 'c') { print STDERR "$Pgm: Can't mix $b with -concurrent.\n"; exit 1; }
1000 # if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
1001 # if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
1002 # if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
1004 # # ok to have a user-way profiling build
1005 # # eval the profiling opts ... but leave user-way BuildTag
1006 # if ($PROFing eq 'p') { &processArgs(split(' ', $SetupOpts{'_p'})); } # eval($EvaldSetupOpts{'_p'}); }
1008 if ( $PROFing eq 'p' ) {
1009 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
1010 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
1011 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
1012 $BuildTag = ($CONCURing eq 'c') ? '_mr' : '_p' ; # possibly "profiled concurrent"...
1014 } elsif ( $CONCURing eq 'c' ) {
1015 if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix -concurrent with -parallel.\n"; exit 1; }
1016 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -concurrent with -gransim.\n"; exit 1; }
1017 $BuildTag = ($TICKYing eq 't') ? '_mt' : '_mc' ; # possibly "ticky concurrent"...
1018 # "profiled concurrent" already acct'd for...
1020 } elsif ( $PARing eq 'p' ) {
1021 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
1022 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
1025 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
1026 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
1030 } elsif ( $GRANing eq 'g' ) {
1031 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
1034 } elsif ( $TICKYing eq 't' ) {
1040 After the sanity checks, add flags to the necessary parts of the driver pipeline:
1043 if ( $BuildTag ne '' ) { # something other than normal sequential...
1045 local($Tag) = "${BuildTag}";
1046 $Tag =~ s/_//; # move the underscore to the back
1048 $HscOut = '-C='; # must go via C
1049 &processArgs(split(' ', $SetupOpts{$BuildTag}));
1050 # eval($EvaldSetupOpts{$BuildTag});
1054 Decide what the consistency-checking options are in force for this run:
1057 $HsC_consist_options = "${BuildTag},${DEBUGging}";
1058 $Cc_consist_options = "${BuildTag},${DEBUGging}";
1061 # Funny place to put it, but why not.
1063 if ( $HiSuffix_prelude eq '' ) {
1064 local($Tag) = "${BuildTag}";
1066 $Tag = "${Tag}_" if $Tag ne '';
1067 $HiSuffix_prelude="${Tag}hi";
1069 #push(@HsC_flags, "-hisuf-prelude=.${HiSuffix_prelude}"); # use appropriate Prelude .hi files
1070 #push(@HsC_flags, "-hisuf=.${HiSuffix}");
1075 %************************************************************************
1077 \subsection{Add on machine-specific C-compiler flags}
1079 %************************************************************************
1081 Shove on magical machine-specific options. We use \tr{unshift} to
1082 stick them on the {\em front} of the arrays, so that ``later''
1083 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
1085 Note: a few ``always apply'' flags were set at the very beginning.
1090 if ($TargetPlatform =~ /^alpha-/) {
1091 # we know how to *mangle* asm for alpha
1092 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1093 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1094 unshift(@CcBoth_flags, ('-static'));
1096 } elsif ($TargetPlatform =~ /^hppa/) {
1097 # we know how to *mangle* asm for hppa
1098 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1099 unshift(@CcBoth_flags, ('-static'));
1101 # We don't put in '-mlong-calls', because it's only
1102 # needed for very big modules (sigh), and we don't want
1103 # to hobble ourselves further on all the other modules
1106 # [Dated comment (gcc-2.6.x?), -mlong-calls is no longer
1107 # a supported gcc HPPA flag]
1108 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
1109 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
1110 # (very nice, but too bad the HP /usr/include files don't agree.)
1112 } elsif ($TargetPlatform =~ /^i386-/) {
1113 # we know how to *mangle* asm for X86
1114 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1115 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK && $TargetPlatform !~ /nextstep/;
1116 # I do not know how to do STACK_CHECK_BY_PAGE_FAULT
1117 # on NeXTs (my fault, not theirs), so I don't.
1120 # -fno-defer-pop : basically the same game as for m68k
1122 # -fomit-frame-pointer : *must* ; because we're stealing
1123 # the fp (%ebp) for our register maps. *All* register
1124 # maps (in MachRegs.lh) must steal it.
1126 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1127 unshift(@CcRegd_flags, '-fomit-frame-pointer');
1128 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1130 } elsif ($TargetPlatform =~ /^m68k-/) {
1131 # we know how to *mangle* asm for m68k
1132 unshift (@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1133 unshift (@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK && $TargetPlatform !~ /nextstep/;
1134 # I do not know how to do STACK_CHECK_BY_PAGE_FAULT
1135 # on NeXTs (my fault, not theirs), so I don't.
1138 # -fno-defer-pop : for the .hc files, we want all the pushing/
1139 # popping of args to routines to be explicit; if we let things
1140 # be deferred 'til after an STGJUMP, imminent death is certain!
1142 # -fomit-frame-pointer : *don't*
1143 # It's better to have a6 completely tied up being a frame pointer
1144 # rather than let GCC pick random things to do with it.
1145 # (If we want to steal a6, then we would try to do things
1146 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1148 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1149 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1150 # maybe gives reg alloc a better time
1151 # also: -fno-defer-pop is not sufficiently well-behaved without it
1153 } elsif ($TargetPlatform =~ /^mips-/) {
1154 # we (hope to) know how to *mangle* asm for MIPSen
1155 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1156 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1157 unshift(@CcBoth_flags, ('-static'));
1159 } elsif ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1160 # we know how to *mangle* asm for PowerPC
1161 # :-( unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1162 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1163 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1164 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1165 } elsif ($TargetPlatform =~ /^sparc-/) {
1166 # we know how to *mangle* asm for SPARC
1167 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1168 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1171 } # end of setupMachOpts
1174 %************************************************************************
1176 \subsection{Set up for warnings}
1178 %************************************************************************
1180 Several warnings are turned on by default. These are supposed to be
1181 the 'I'm pretty sure you've made a mistake here' kind of warnings.
1182 The rest are turned on by the -W and -Wall options, or individually
1183 via their -fwarn and -fno-warn flags.
1186 sub setupWarningFlags {
1187 &add_Hsc_flags( @StandardWarnings );
1191 Same unshifting magic, but for special linker flags.
1193 The configure script determines whether the object file symbol tables
1194 have a leading underscore, and sets @LeadingUnderscore@ accordingly.
1195 (The driver script `sees' the setting of the @LeadingUnderscore@
1196 by having the Makefile prepend it).
1200 local($uscore) = ( ${LeadingUnderscore} eq 'YES' ) ? '_' : '';
1203 (($Ld_main) ? ( '-u', "${uscore}Main_" . $Ld_main . '_closure' ) : ()));
1205 ( '-u', "${uscore}PrelBase_Z91Z93_closure" # i.e., []
1206 ,'-u', "${uscore}PrelBase_IZh_static_info"
1207 ,'-u', "${uscore}PrelBase_CZh_static_info"
1208 ,'-u', "${uscore}PrelBase_False_inregs_info"
1209 ,'-u', "${uscore}PrelBase_True_inregs_info"
1210 ,'-u', "${uscore}DEBUG_REGS"
1212 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1213 # sometimes we have lots of toc entries...
1214 # unshift(@Ld_flags, ('-Xlinker -bbigtoc -Xlinker -bnoquiet'));
1215 unshift(@Ld_flags, ('-Xlinker -bbigtoc'));
1218 } # end of setupLinkOpts
1222 %************************************************************************
1224 \subsection{Set up include paths and system-library enslurpment}
1226 %************************************************************************
1228 Now that we know what garbage-collector, etc., are required, we can
1229 finalise our list of libraries to slurp through, and generally Get
1234 # default includes must be added AFTER option processing
1235 if ( ! $INSTALLING ) {
1236 push (@Include_dir, "$TopPwd/${CURRENT_DIR}/${GHC_INCLUDE_DIR}");
1238 push (@Include_dir, "$InstLibDirGhc/includes");
1239 push (@Include_dir, "$InstLibDirGhc/includes");
1241 } # end of setupIncPaths
1246 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1249 foreach $f (@SysLibrary) {
1250 next if $f =~ /_cbits/;
1251 $f .= $BuildTag if $f =~ /^-lHS/;
1254 # fiddle the TopClosure file name...
1255 $TopClosureFile =~ s/XXXX//;
1257 # Push library HSrts, plus boring clib bit
1258 push(@SysLibrary, "-lHSrts${BuildTag}");
1259 push(@SysLibrary, '-lHSclib');
1261 # RTS compiled with cygwin32, uses the WinMM API
1262 # to implement the itimers, since cygwin.dll does not
1263 # support it. Only reqd. for `ways' that use itimers.
1265 push(@SysLibrary, '-lwinmm') if $BuildTag ne '' && $TargetPlatform eq 'i386-unknown-cygwin32';
1267 # Push the pvm libraries
1268 if ($BuildTag eq '_mp') {
1269 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1270 push(@SysLibrary, "-L$pvmlib", '-lpvm3', '-lgpvm3');
1271 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1272 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1273 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1274 push(@SysLibrary, '-lsocket', '-lnsl');
1278 # Push the GNU multi-precision arith lib; and the math library
1279 push(@SysLibrary, '-lgmp');
1280 push(@SysLibrary, '-lm');
1283 %************************************************************************
1285 \subsection{Check that this system was built to do what we are asking}
1287 %************************************************************************
1289 Before continuing we check that the appropriate build is available.
1292 #die "$Pgm: no BuildAvail?? $BuildTag\n" if $BuildDescr{$BuildTag} eq '' ; # sanity
1294 if ( $BuildDescr{$BuildTag} eq '' ) {
1295 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1296 "' \"build\" is not available with your GHC setup.\n";
1297 print STDERR "(It was not configured for it at your site.)\n";
1298 print STDERR $ShortUsage;
1302 } # end of setupSyslibs
1306 %************************************************************************
1308 \subsection{Final miscellaneous setup bits before we start going}
1310 %************************************************************************
1312 Record largest specific heapsize, if any.
1314 sub setupHeapStackSize {
1315 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1316 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1317 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1318 push(@HsC_rts_flags, "-K$Specific_stk_size");
1322 If no input or link files seen, then we let 'em feed in stdin; this is
1323 mainly for debugging.
1327 if ($#Input_file < 0 && $#Link_file < 0) {
1328 @Input_file = ( '-' );
1330 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1331 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n" if -t;
1332 while (<STDIN>) { print INF $_; }
1333 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1338 Tell the world who we are, if they asked.
1340 print STDERR "${ProjectName}, version ${ProjectVersion}, patchlevel ${ProjectPatchLevel}\n"
1344 %************************************************************************
1346 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1348 %************************************************************************
1350 Process the input files; don't continue with linking if there are
1351 problems (global variable @$Status@ non-zero).
1353 foreach $ifile (@Input_file) {
1354 &ProcessInputFile($ifile);
1357 if ( $Status > 0 ) { # don't link if there were errors...
1358 print STDERR $ShortUsage;
1363 # append last minute flags linker and consistency flags
1370 Link if appropriate.
1373 local($libdirs) = '';
1375 # glue them together:
1376 push(@UserLibrary_dir, @SysLibrary_dir);
1378 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1380 # for a linker, use an explicitly given one, or the going C compiler ...
1381 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1383 if ( ($Specific_output_file eq '') &&
1384 ($TargetPlatform eq 'i386-unknown-cygwin32') ) {
1385 $Specific_output_file = 'main.exe';
1386 print STDERR "Output file not specified, defaulting to \"main.exe\"\n";
1389 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1390 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1392 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $TopClosureFile $libdirs @UserLibrary @SysLibrary";
1393 &run_something($to_do, 'Linker');
1395 # finally, check the consistency info in the binary
1396 local($executable) = $Files_to_tidy[0];
1397 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1400 # dynamically load consistency-chking code; then do it.
1401 require('ghc-consist.prl')
1402 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1404 &chk_consistency_info ( $executable );
1407 # if PVM parallel stuff, we do truly weird things.
1408 # Essentially: (1) move the executable over to where PVM expects
1409 # to find it. (2) create a script in place of the executable
1410 # which will cause the program to be run, via SysMan.
1411 if ( $PARing eq 'p' ) {
1412 local($pvm_executable) = $executable;
1413 local($pvm_executable_base);
1415 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1416 local($pwd) = `pwd`;
1418 $pwd =~ s/^\/tmp_mnt//;
1419 $pvm_executable = "$pwd/$pvm_executable";
1422 $pvm_executable =~ s|/|=|g; # make /s into =s
1423 $pvm_executable_base = $pvm_executable;
1425 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1426 . "/$pvm_executable";
1428 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1430 # OK, now create the magic script for "$executable"
1431 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1432 print EXEC <<EOSCRIPT1;
1433 eval 'exec perl -S \$0 \${1+"\$@"}'
1434 if \$running_under_some_shell;
1435 # =!=!=!=!=!=!=!=!=!=!=!
1436 # This script is automatically generated: DO NOT EDIT!!!
1437 # Generated by Glasgow Haskell, version ${ProjectVersion} ${ProjectPatchLevel}
1439 \$pvm_executable = '$pvm_executable';
1440 \$pvm_executable_base = '$pvm_executable_base';
1441 \$SysMan = '$SysMan';
1444 print EXEC <<\EOSCRIPT2;
1445 # first, some magical shortcuts to run "commands" on the binary
1447 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1449 system("$cmd $pvm_executable");
1453 # OK, really run it; process the args first
1454 $ENV{'PE'} = $pvm_executable_base;
1456 $nprocessors = 2; # the default
1460 # ToDo: handle --RTS
1461 args: while ($a = shift(@ARGV)) {
1462 if ( $a eq '+RTS' ) {
1464 } elsif ( $a eq '-RTS' ) {
1467 if ( $a eq '-d' && $in_RTS_args ) {
1469 } elsif ( $a =~ /^-N(\d+)/ && $in_RTS_args ) {
1472 push(@nonPVM_args, $a);
1476 local($return_val) = 0;
1477 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
1479 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
1482 close(EXEC) || die "Failed closing $executable\n";
1483 chmod 0755, $executable;
1487 # that... that's all, folks!
1489 exit $Status; # will still be 0 if all went well
1492 %************************************************************************
1494 \section[Driver-do-one-file]{How to process a single input file}
1496 %************************************************************************
1499 sub ProcessInputFile {
1500 local($ifile) = @_; # input file name
1501 local($ifile_root); # root of or basename of input file
1502 local($ofile_target); # ultimate output file we hope to produce
1503 # from input file (need to know for recomp
1504 # checking purposes)
1505 local($hifile_target);# ditto (but .hi file)
1508 Handle the weirdity of input from stdin.
1510 if ($ifile ne '-') {
1511 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1512 $ofile_target = # may be reset later...
1513 ($Specific_output_file ne '' && ! $Do_lnkr)
1514 ? $Specific_output_file
1515 : &odir_ify($ifile_root, 'o');
1516 $hifile_target= ($Specific_hi_file ne '')
1518 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1519 # NB: may change if $ifile_root isn't module name (??)
1521 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1522 $ifile_root = '_stdin';
1523 $ofile_target = '_stdout'; # gratuitous?
1524 $hifile_target= '_stdout'; # ditto?
1528 We need to decide what phases of the compilation system we will run
1529 over this file. The defaults are the ones established when processing
1530 flags. (That established what the last phase run for all files is.)
1532 We do the pre-recompilation-checker phases here; the rest later.
1536 Look at the suffix and decide what initial phases of compilation may
1537 be dropped off for this file. Also the rather boring business of
1538 which files are coming-in/going-out.
1540 Again, we'll do the post-recompilation-checker parts of this later.
1542 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1543 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1546 # names of the files to stuff between phases
1547 # defaults are temporaries
1548 local($in_lit2pgm) = $ifile;
1549 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1550 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1551 local($hsc_hi) = "$Tmp_prefix.hi";
1552 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1553 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1554 local($as_out) = $ofile_target;
1556 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
1558 # OK, let's strip off some literate junk..
1560 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
1562 $lit2pgm_hscpp = $ifile;
1568 # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas
1569 &check_for_source_options($lit2pgm_hscpp,$ifile);
1571 # Options found in the source file take a back seat, i.e., we scan
1572 # them first. Only process the command line again if source file
1573 # contained anything of interest *or* there's more than one
1574 # input file (we have to reset the options).
1576 if ( $#Input_file >= 0 || $#File_options >= 0) {
1577 #@File_options = (@File_options, @Cmd_opts);
1579 # Now process the command line
1580 &initDriverGlobals();
1581 &processArgs((@File_options,@Cmd_opts));
1582 print STDERR "\nEffective command line: " .
1583 join(' ',(@File_options,@Cmd_opts)) . "\n" if $Verbose;
1586 # Having got the effective command line scanned, set up
1587 # the various options in prep for some real work.
1589 # check the sanity of the BuildTag we're about to use,
1590 # and if needs be, add some more flags and setup to
1591 # the different phases.
1594 &setupOptimiseFlags();
1597 &setupWarningFlags();
1598 &setupHeapStackSize();
1601 # These two variables need to be set after the
1602 # command-line has been processed and the build options
1603 # have be seen set up. This is because command-line options
1604 # can control whether to compile vias C or not.
1606 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1608 : ( ($HscOut eq '-C=') ? 1 : 0 );
1609 local($do_as) = $Do_as;
1610 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1612 if ($Only_preprocess_hc) { # stop after having run $Cc -E
1615 if ($Only_preprocess_C) { # stop after having run $hscpp
1616 $do_hsc=0; $do_cc = 0; $do_as=0;
1617 } elsif ($ifile =~ /.lhs$/ || $ifile =~ /.hs$/ ) {
1619 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
1620 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1622 } elsif ($ifile =~ /\.c$/) {
1623 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1624 $hsc_out = $ifile; $is_hc_file = 0;
1625 } elsif ($ifile =~ /\.s$/) {
1626 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
1628 } else { # don't know what it is, but nothing to do herein...
1629 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
1632 # hack to avoid running hscpp
1633 $HsCpp = $Cat if ! $Cpp_flag_set;
1635 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) if $do_hscpp;
1639 We now think about whether to run hsc/cc or not (when hsc produces .s
1640 stuff, it effectively takes the place of both phases).
1642 To get the output file name right: for each phase that we are {\em
1643 not} going to run, set its input (i.e., the output of its preceding
1644 phase) to @"$ifile_root.<suffix>"@.
1647 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
1650 # Warning issued if -keep-hc-file-too is used without
1651 # -fvia-C (or the equivalent)
1653 if ( $HscOut ne '-C=' && $Keep_hc_file_too ) {
1654 print STDERR "$Pgm: warning: Native code generator to be used, -keep-hc-file-too will be ignored\n";
1657 if (! $do_cc && ! $do_as) { # stopping after hsc
1658 $hsc_out = ($Specific_output_file ne '')
1659 ? $Specific_output_file
1660 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
1662 $ofile_target = $hsc_out; # reset
1665 if (! $do_as) { # stopping after gcc (or hsc)
1666 $cc_as = ($Specific_output_file ne '')
1667 ? $Specific_output_file
1668 : &odir_ify($ifile_root, ( $Only_preprocess_hc ) ? 'i' : 's');
1670 $ofile_target = $cc_as; # reset
1676 Now the Haskell compiler, C compiler, and assembler
1680 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
1681 $ofile_target, $hifile_target);
1685 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
1686 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root) if ! $Only_preprocess_hc;
1689 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
1691 # save a copy of the .s file..
1692 &saveIntermediate($ifile_root , "s" , $cc_as) if ($do_as && $Keep_s_file_too);
1693 &runAs($as_out, $ifile_root) if $do_as;
1696 Finally, decide what to queue up for linker input.
1698 # tentatively assume we will eventually produce linker input:
1699 push(@Link_file, &odir_ify($ifile_root, 'o'));
1701 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
1704 if ( $ifile !~ /\.(lhs|hs|hc|c|s|a)$/ && $ifile !~ /_hc$/ ) {
1705 # There's sometimes confusion regarding .hi files; users
1706 # supplying them on the command line.
1707 if ( $ifile =~ /\.hi$/ ) {
1708 print STDERR "$Pgm: warning: found `$ifile' on command line; interface files should not be supplied here - ignoring it.\n";
1710 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n";
1712 # oops; we tentatively pushed the wrong thing; fix & do the right thing
1713 pop(@Link_file); push(@Link_file, $ifile);
1717 } # end of ProcessInputFile
1720 %************************************************************************
1722 \section[Driver-run-phases]{Routines to run the various phases}
1724 %************************************************************************
1728 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
1732 # Only add #line pragma if we're going to need it.
1733 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && " if ($Cpp_flag_set);
1734 $to_do .= "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
1736 push(@Files_to_tidy, $lit2pgm_hscpp );
1738 &run_something($to_do, 'literate pre-processor');
1744 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
1748 # Strictly speaking, echoing of the following line pragma is only required
1749 # on non-delit'ed input, as we've already added it during de-lit. However,
1750 # hscpp will then add a {-# LINE 1 "$lit2pgm_hsc" -} to the top of the file,
1751 # which is not very informative (but harmless). Hence, we uniformly have
1752 # {-# LINE 1 "$in_lit2pgm" #-} as the first line to all cpp'ed hsc input.
1754 $to_do = "echo '{-# LINE 1 \"$in_lit2pgm\" -}' > $hscpp_hsc && ";
1756 if ($HsCpp eq $Cat) {
1757 $to_do .= "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
1758 push(@Files_to_tidy, $hscpp_hsc );
1759 &run_something($to_do, 'Ineffective C pre-processor');
1761 local($includes) = '-I' . join(' -I',@Include_dir);
1762 $to_do .= "$HsCpp $Verbose $genSPECS_flag @HsCpp_flags -D__HASKELL1__=$Haskell1Version -D__GLASGOW_HASKELL__=$GhcVersionInfo $includes $lit2pgm_hscpp >> $hscpp_hsc";
1763 push(@Files_to_tidy, $hscpp_hsc );
1764 &run_something($to_do, 'Haskellised C pre-processor');
1767 if ( $Only_preprocess_C ) {
1768 $to_do = "$Cat $hscpp_hsc";
1769 &run_something($to_do, '');
1777 sub runHscAndProcessInterfaces {
1778 local($ifile, $hscpp_hsc, $ifile_root, $ofile_target, $hifile_target) = @_;
1780 # $ifile is the original input file
1781 # $hscpp_hsc post-unlit, post-cpp, etc., input file
1782 # $ifile_root input filename minus suffix
1783 # $ofile_target the output file that we ultimately hope to produce
1784 # $hifile_target the .hi file ... (ditto)
1786 local($source_unchanged) = 1;
1788 # Check if the source file is up to date relative to the target; in
1789 # that case we say "source is unchanged" and let the compiler bail out
1790 # early if the import usage information allows it.
1792 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
1793 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
1795 # The informational messages below are now conditional on -v being set -- SOF
1796 if ( $ofile_target ne "_stdin.s" && ! -f $ofile_target ) {
1797 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n" if $Verbose;
1798 $source_unchanged = 0;
1801 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
1802 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
1804 if ( $hifile_target ne "_stdout" && ! -f $hifile_target ) {
1805 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n" if $Verbose;
1806 $source_unchanged = 0;
1809 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
1810 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
1812 if ( $ofile_target ne "_stdin.s" && $i_mtime > $o_mtime) {
1813 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n" if $Verbose;
1814 $source_unchanged = 0;
1817 # So if source_unchanged is still "1", we pass on the good news to the compiler
1818 # The -recomp flag can disable this, forcing recompilation
1819 if ($Do_recomp_chkr && $source_unchanged) {
1820 push(@HsC_flags, '-fsource-unchanged');
1825 &runHsc($ifile_root, $hsc_out, $hsc_hi, $going_interactive);
1827 # See if it bailed out early, saying nothing needed doing.
1828 # We work this out by seeing if it created an output .hi file
1830 if ( ! -f $hsc_hi && $ProduceHi !~ /-nohifile=/ ) {
1831 # Doesn't exist, so we bailed out early.
1832 # Tell the C compiler and assembler not to run
1833 $do_cc = 0; $do_as = 0;
1835 # Update dependency info, touch both object file and
1836 # interface file, so that the following invariant is
1839 # a dependent module's interface file should after recompilation
1840 # checking be newer than the interface files of its imports.
1842 # That is, if module A's interface file changes, then module B
1843 # (which import from A) needs to be checked.
1844 # If A's change does not affect B, which causes the compiler to bail
1845 # out early, we still need to touch the interface file of B. The reason
1846 # for this is that B may export A's interface.
1848 &run_something("touch $ofile_target",
1849 "Touch $ofile_target, to propagate dependencies") if $HscOut ne '-N=';
1850 &run_something("touch $hifile_target",
1851 "Touch $hifile_target, to propagate dependencies") if $ProduceHi =~ /-nohifile=/ ;
1855 # Didn't bail out early (new .hi file) so we thunder on
1857 # If non-interactive, heave in the consistency info at the end
1858 # NB: pretty hackish (depends on how $output is set)
1859 if ( ! $going_interactive ) {
1860 if ( $HscOut eq '-C=' ) {
1861 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
1863 } elsif ( $HscOut eq '-S=' ) {
1864 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
1865 $consist =~ s/,/./g;
1866 $consist =~ s/\//./g;
1867 $consist =~ s/-/_/g;
1868 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
1869 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
1871 &run_something($to_do, 'Pin on Haskell consistency info');
1875 # Interface-handling is important enough to live off by itself
1876 if ( $ProduceHi !~ /-nohifile=/ ) { # If we've produced one, process it.
1877 require('ghc-iface.prl') || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
1878 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
1880 # if we're going to split up object files,
1881 # we inject split markers into the .hc file now
1882 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
1883 &inject_split_markers ( $hsc_out );
1886 # save a copy of the .hc file, even if we are carrying on...
1887 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
1888 &saveIntermediate($ifile_root , "hc" , $hsc_out);
1898 local($ifile_root, $hsc_out, $hsc_hi, $going_interactive) = @_;
1900 # prepend comma to HsP flags (so hsc can tell them apart...)
1901 foreach $a ( @HsP_flags ) { $a = ",$a" unless $a =~ /^,/; }
1903 &makeHiMap() unless $HiMapDone;
1904 #print STDERR "HiIncludes: $HiIncludeString\n";
1905 push(@HsC_flags, "-himap=$HiIncludeString");
1907 # here, we may produce .hc/.s and/or .hi files
1908 local($output) = '';
1909 #@Files_to_tidy = ();
1911 if ( $going_interactive ) {
1912 # don't need .hi unless going to show it on stdout:
1913 $ProduceHi = '-nohifile=' if ! $HiOnStdout;
1914 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
1917 # set up for producing output/.hi; note that flag twiddling
1918 # may mean that nothing will actually be produced:
1919 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out";
1920 push(@Files_to_tidy, $hsc_hi, $hsc_out );
1922 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
1923 if ( $CollectingGCstats ) {
1924 push(@HsC_rts_flags, "-S$ifile_root.stat");
1925 push(@Files_to_tidy, "$ifile_root.stat");
1928 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
1929 # emit nofibbish time/bytes-alloc stats to stderr;
1930 # see later .stat file post-processing
1931 print STDERR "warning: both -Rgc-stats and -Rghc-timing used, -Rghc-timing wins." if $CollectingGCstats;
1932 push(@HsC_rts_flags, "-s$Tmp_prefix.stat");
1933 push(@Files_to_tidy, "$Tmp_prefix.stat");
1937 if ($Specific_dump_file ne '') {
1938 $dump = "2>> $Specific_dump_file";
1939 $Using_dump_file = 1;
1943 $to_do = "$HsC @HsP_flags ,$hscpp_hsc $dump @HsC_flags $CoreLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
1944 &run_something($to_do, 'Haskell compiler');
1946 # finish business w/ nofibbish time/bytes-alloc stats
1947 &process_ghc_timings() if $CollectGhcTimings;
1951 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
1952 of (module-name, pathname) pairs, one per line, separated by a space.
1955 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1959 # collect in %HiMap; write later; also used elsewhere in driver
1961 local($mod, $path, $d, $e);
1963 # reset the global variables:
1965 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1967 foreach $d ( @Import_dir ) {
1968 if ($HiIncludeString) {
1969 $HiIncludeString = "$HiIncludeString:${d}/%.${HiSuffix}";
1971 $HiIncludeString = "$d/%.${HiSuffix}";
1976 foreach $d ( @SysImport_dir ) {
1977 if ($HiIncludeString) {
1978 $HiIncludeString = "$HiIncludeString:${d}/%.${HiSuffix_prelude}";
1980 $HiIncludeString = "${d}/%.${HiSuffix_prelude}";
1989 %************************************************************************
1991 \section[Driver-misc-utils]{Miscellaneous utilities}
1993 %************************************************************************
1995 %************************************************************************
1997 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
1999 %************************************************************************
2003 local($ofile,$def_suffix) = @_;
2005 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
2009 local($orig_file, $def_suffix) = @_;
2010 if ($Specific_output_dir eq '') { # do nothing
2011 &osuf_ify($orig_file, $def_suffix);
2013 local ($orig_file_only);
2014 ($orig_file_only = $orig_file) =~ s|.*/||;
2015 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
2022 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
2024 local($includes) = '-I' . join(' -I', @Include_dir);
2027 local($c_flags) = "@CcBoth_flags";
2028 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2030 # "input" files to use that are not in some weird directory;
2031 # to help C compilers grok .hc files [ToDo: de-hackify]
2032 local($cc_help) = "ghc$$.c";
2033 local($cc_help_s) = "ghc$$.s";
2036 $s_output = ($is_hc_file || $TargetPlatform =~ /^(powerpc|rs6000|hppa|i386)/) ? $cc_as_o : $cc_as;
2037 $c_flags .= " @CcRegd_flags";
2038 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2040 # C compiler won't like the .hc extension. So we create
2041 # a tmp .c file which #include's the needful.
2042 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2043 if ( $is_hc_file ) {
2045 #ifdef __STG_GCC_REGS__
2046 # if ! (defined(MAIN_REG_MAP) || defined(MARK_REG_MAP) || defined(SCAN_REG_MAP) || defined(SCAV_REG_MAP) || defined(FLUSH_REG_MAP))
2047 # define MAIN_REG_MAP
2050 #include "stgdefs.h"
2052 # user may have asked for #includes to be injected...
2053 print TMP @CcInjects if $#CcInjects >= 0;
2055 # heave in the consistency info
2056 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2058 # and #include the real source
2059 print TMP "#include \"$hsc_out\"\n";
2060 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2062 # Don't redirect stderr into intermediate file if slamming output onto stdout (e.g., with -E)
2063 local($fuse_stderr) = "2>&1" if ! $Only_preprocess_hc;
2064 local($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 )";
2065 # note: __GLASGOW_HASKELL__ is pointedly *not* #defined at the C level.
2067 if ( $Only_preprocess_hc ) { # HACK ALERT!
2068 $to_do =~ s/ -S\b//g;
2070 push(@Files_to_tidy, $cc_help, $cc_help_s, $s_output );
2071 $PostprocessCcOutput = 1 if ! $Only_preprocess_hc; # hack, dear hack...
2072 &run_something($to_do, 'C compiler');
2073 $PostprocessCcOutput = 0;
2074 if ( $Only_preprocess_hc ) {
2075 system("$Cat $Tmp_prefix.ccout");
2077 unlink($cc_help, $cc_help_s);
2083 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2085 if ( $is_hc_file ) {
2086 # dynamically load assembler-fiddling code, which we are about to use:
2087 require('ghc-asm.prl')
2088 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2091 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2094 # post-process the assembler [.hc files only]
2095 &mangle_asm($cc_as_o, $cc_as);
2099 #OLD: local($target) = 'oops';
2100 #OLD: $target = '-alpha' if $TargetPlatform =~ /^alpha-/;
2101 #OLD: $target = '-hppa' if $TargetPlatform =~ /^hppa/;
2102 #OLD: $target = '-old-asm' if $TargetPlatform =~ /^i386-/;
2103 #OLD: $target = '-m68k' if $TargetPlatform =~ /^m68k-/;
2104 #OLD: $target = '-mips' if $TargetPlatform =~ /^mips-/;
2105 #OLD: $target = '' if $TargetPlatform =~ /^powerpc-/;
2106 #OLD: $target = '-solaris' if $TargetPlatform =~ /^sparc-sun-solaris2/;
2107 #OLD: $target = '-sparc' if $TargetPlatform =~ /^sparc-sun-sunos4/;
2109 #OLD: if ( $target ne '' ) {
2110 #OLD: require("ghc-asm$target.prl")
2111 #OLD: || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm$target.prl!\n");
2112 #OLD: &mangle_asm($cc_as_o, "$cc_as-2"); # the OLD one!
2113 #OLD: &run_something("$Cmp -s $cc_as-2 $cc_as || $Diff $cc_as-2 $cc_as 1>&2 || exit 0",
2114 #OLD: "Diff'ing old and new mangled .s files"); # NB: to stderr
2117 } elsif ($TargetPlatform =~ /^hppa/) {
2118 # minor mangling of non-threaded files for hp-pa only
2119 require('ghc-asm.prl')
2120 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2121 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2123 } elsif ($TargetPlatform =~ /^powerpc|^rs6000/) {
2124 # minor mangling of non-threaded files for powerpcs and rs6000s
2125 require('ghc-asm.prl')
2126 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-powerpc.prl!\n");
2127 &mini_mangle_asm_powerpc($cc_as_o, $cc_as);
2128 } elsif ($TargetPlatform =~ /^i386/) {
2129 # extremely-minor OFFENSIVE mangling of non-threaded just one file
2130 require('ghc-asm.prl')
2131 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2132 &mini_mangle_asm_i386($cc_as_o, $cc_as);
2135 # save a copy of the .s file, even if we are carrying on...
2136 #if ($do_as && $Keep_s_file_too) {
2137 # &saveIntermediate($ifile_root , "s" , $cc_as);
2144 local($as_out, $ifile_root) = @_;
2146 local($asmblr) = ( $As ) ? $As : $CcRegd;
2148 if ( ! $SplitObjFiles ) {
2149 local($to_do) = "$asmblr -o $as_out -c @As_flags $cc_as";
2150 push(@Files_to_tidy, $as_out );
2151 &run_something($to_do, 'Unix assembler');
2153 } else { # more complicated split-ification...
2155 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2157 # If -odir is used, great, just pin it in front of the
2158 # generated split file names. If it hasn't been set, we
2159 # snatch it from the ifile_root.
2163 if ( $Specific_output_dir eq '' ) {
2164 $Specific_output_dir = ${ifile_root};
2167 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2168 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2169 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2170 push(@Files_to_tidy, $split_out );
2172 &run_something($to_do, 'Unix assembler');
2178 %************************************************************************
2180 \subsection[Driver-run-something]{@run_something@: Run a phase}
2182 %************************************************************************
2186 local($str_to_do, $tidy_name) = @_;
2188 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2189 print STDERR "$str_to_do\n" if $Verbose;
2191 if ($Using_dump_file) {
2192 open(DUMP, ">> $Specific_dump_file")
2193 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2194 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2196 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2199 local($return_val) = 0;
2201 if ( length($str_to_do) > 4000) {
2202 # 4000 - on the random side, just like the *real* ARG_MAX
2205 # With some shells, command lines of this length may
2206 # very well cause trouble. To safeguard against this, we squirrel the
2207 # command into a file and exec that.
2208 local ($sh) = $ENV{'REAL_SHELL'};
2209 print STDERR "Backup plan A: saving cmd line in ${Tmp_prefix}.sh and executing that with $sh\n" if $Verbose;
2210 open (TEMP, "> ${Tmp_prefix}.sh") ||
2211 &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.sh'\n");
2212 print TEMP "$Time $str_to_do\n";
2214 &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.sh'\n");
2215 system("$sh $Tmp_prefix.sh");
2218 unlink "${Tmp_prefix}.sh";
2220 system("$Time $str_to_do");
2224 if ( $PostprocessCcOutput ) { # hack, continued
2225 open(CCOUT, "< $Tmp_prefix.ccout")
2226 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2228 next if /attribute directive ignored/;
2229 next if /call-clobbered/;
2230 next if /from .*COptRegs\.lh/;
2231 next if /from .*(stg|rts)defs\.h:/;
2232 next if /from ghc\d+.c:\d+:/;
2233 next if /from .*\.lc/;
2234 next if /from .*SMinternal\.l?h/;
2235 next if /ANSI C does not support \`long long\'/;
2236 next if /warning:.*was declared \`extern\' and later \`static\'/;
2237 next if /warning: assignment discards \`const\' from pointer target type/;
2238 next if /: At top level:$/;
2239 next if /: In function \`.*\':$/;
2240 next if /\`ghc_cc_ID\' defined but not used/;
2243 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2246 if ($return_val != 0) {
2247 if ($Using_dump_file) {
2248 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2251 &tidy_up_and_die($return_val, '');
2253 $Using_dump_file = 0;
2257 %************************************************************************
2259 \subsection[Driver-ghc-timing]{Emit nofibbish GHC timings}
2261 %************************************************************************
2263 NB: nearly the same as in @runstdtest@ script.
2266 sub process_ghc_timings {
2267 local($StatsFile) = "$Tmp_prefix.stat";
2268 local($SysSpecificTiming) = 'ghc';
2270 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2271 local($max_live) = 0;
2272 local($tot_live) = 0; # for calculating residency stuff
2273 local($tot_samples) = 0;
2276 if (! /Minor/ && /^\s*\d+\s+\d+\s+(\d+)\s+\d+\.\d+\%/ ) {
2277 $max_live = $1 if $max_live < $1;
2281 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2283 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2284 $MaxResidency = $1; $ResidencySamples = $2;
2287 $GCs = $1 if /^\s*([0-9,]+) garbage collections? performed/;
2289 # The presence of -? in the following pattern is only there to
2290 # accommodate 0.29 && <= 2.05 RTS'
2291 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*-?(\d+\.\d\d)s elapsed\)/ ) {
2292 $InitTime = $1; $InitElapsed = $2;
2293 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2294 $MutTime = $1; $MutElapsed = $2;
2295 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2296 $GcTime = $1; $GcElapsed = $2;
2299 close(STATS) || die "Failed when closing $StatsFile\n";
2300 if ( $tot_samples > 0 ) {
2301 $ResidencySamples = $tot_samples;
2302 $MaxResidency = $max_live;
2303 $AvgResidency = int ($tot_live / $tot_samples) ;
2306 # warn about what we didn't find
2307 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2308 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2309 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2310 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2311 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2312 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2313 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2314 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2316 # things we didn't necessarily expect to find
2317 $MaxResidency = 0 unless defined($MaxResidency);
2318 $AvgResidency = 0 unless defined($AvgResidency);
2319 $ResidencySamples = 0 unless defined($ResidencySamples);
2322 $BytesAlloc =~ s/,//g;
2323 $MaxResidency =~ s/,//g;
2325 $InitTime =~ s/,//g;
2326 $InitElapsed =~ s/,//g;
2328 $MutElapsed =~ s/,//g;
2330 $GcElapsed =~ s/,//g;
2332 # print out what we found
2333 print STDERR "<<$SysSpecificTiming: ",
2334 "$BytesAlloc bytes, $GCs GCs, $AvgResidency/$MaxResidency avg/max bytes residency ($ResidencySamples samples), $InitTime INIT ($InitElapsed elapsed), $MutTime MUT ($MutElapsed elapsed), $GcTime GC ($GcElapsed elapsed)",
2335 " :$SysSpecificTiming>>\n";
2342 %************************************************************************
2344 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2346 %************************************************************************
2350 local($to_do) = "\n$Rm $Tmp_prefix*";
2351 if ( $Tmp_prefix !~ /^\s*$/ ) {
2352 print STDERR "$to_do\n" if $Verbose;
2357 sub tidy_up_and_die {
2358 local($return_val, $msg) = @_;
2360 # delete any files to tidy
2361 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2362 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2366 exit (($return_val == 0) ? 0 : 1);
2370 %************************************************************************
2372 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2374 %************************************************************************
2376 Some command-line arguments take an argument, e.g.,
2377 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2378 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2379 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2381 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2382 gobble the second argument (and probably set the heapsize to something
2386 local(*Args, $option, $rest_of_arg) = @_;
2388 if ($rest_of_arg ne '') {
2389 return($rest_of_arg);
2390 } elsif ($#Args >= 0) {
2391 local($temp) = $Args[0]; shift(@Args);
2394 print STDERR "$Pgm: no argument following $option option\n";
2405 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2407 foreach $f ( @HsC_antiflags ) {
2408 return(0) if $flag eq $f;
2410 # foreach $f ( @HsC_flags ) {
2411 # return(0) if $flag eq $f;
2416 sub squashHscFlag { # pretty terrible
2420 foreach $f ( @HsC_flags ) {
2421 if ($flag eq $f) { $f = ''; }
2429 foreach $f ( @flags ) {
2430 push( @HsC_flags, $f ) if &isntAntiFlag($f);
2437 local($syslib) = @_;
2439 unshift(@SysImport_dir,
2440 $INSTALLING ? "$InstLibDirGhc/imports/$syslib"
2441 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/$syslib");
2443 push(@SysLibrary_dir,
2444 $INSTALLING ? ("$InstLibDirGhc")
2445 : ("$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/$syslib",
2446 "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/$syslib/cbits"));
2448 push(@SysLibrary, "-lHS$syslib");
2449 push(@SysLibrary, "-lHS${syslib}_cbits")
2450 unless $syslib eq 'contrib' || $syslib eq 'exts' || $syslib eq 'conc';
2451 #HACK! they have no cbits
2455 Source files may have {-# OPTIONS ... #-} pragmas at the top, containing
2456 command line options we want to append to collection of commands specified
2457 directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell
2458 file for any such pragmas:
2461 sub check_for_source_options {
2462 local($file,$ifile) = @_;
2463 local($comment_start,$comment_end);
2465 if ($ifile =~ /\.hc$/ ||
2468 $ifile =~ /_s$/ ) { # `Real' C intermediate
2469 $comment_start = "/\\*";
2470 $comment_end = "\\*/";
2471 } else { # Assume it is a file containing Haskell source
2472 $comment_start = "{-#";
2473 $comment_end = "#-}";
2476 open(FILE,$file) || return(1); # No big loss
2479 if ( /^${comment_start} OPTIONS (.*)${comment_end}$/ ) {
2480 # add the options found at the back of the command line.
2481 local(@entries) = split(/\s+/,$1);
2482 print STDERR "Found OPTIONS " . join(' ',@entries) . " in $file\n" if $Verbose;
2483 push(@File_options, @entries);
2485 elsif ( /^$/ ) { # ignore empty lines
2488 elsif ( /^#line.+$/ ) { # ignore comment lines (unused..ToDo: rm )
2491 elsif ( /^{-# LINE.+$/ ) { # ignore line pragmas
2494 else { # stop looking, something non-empty / not
2495 # ${comment_start} OPTIONS .. ${comment_end} encountered.
2496 close(FILE);return(0);
2505 We split the initial argv up into three arrays:
2511 the reason for doing so is to be able to deal
2512 with {-# OPTIONS #-} pragma in source files properly.
2518 arg: while($_ = $args[0]) {
2520 # sigh, we have to deal with these -option arg specially here.
2521 /^-(tmpdir|odir|ohi|o|isuf|osuf|hisuf|hisuf-prelude|odump|syslib)$/ &&
2522 do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; };
2523 /^--?./ && do { push(@Cmd_opts, $_); next arg; };
2525 if (/\.([^_]+_)?[oa]$/) {
2526 push(@Link_file, $_);
2528 push(@Input_file, $_);
2531 # input files must exist:
2533 print STDERR "$Pgm: input file doesn't exist: $_\n";
2541 When saving an intermediate file (.hc or .s) away, we
2542 have to prefix any OPTIONS found in the original source file.
2545 sub saveIntermediate {
2546 local ($final,$suffix,$tmp)= @_ ;
2549 # $final -- root of where to park ${final}.${suffix}
2550 # $tmp -- temporary file where hsc put the intermediate file.
2552 # Delete the old file
2553 $to_do = "$Rm ${final}.${suffix}"; &run_something($to_do, "Removing old .${suffix} file");
2555 if ( $#File_options >= 0 ) { # OPTIONS found in Haskell source unit
2556 # Add OPTION comment to the top of the generated .${suffix} file
2557 open(TEMP, "> ${final}.${suffix}") || &tidy_up_and_die(1,"Can't open ${final}.${suffix}\n");
2558 print TEMP "/* OPTIONS " . join(' ',@File_options) . " */\n";
2560 print STDERR "Prepending OPTIONS: " . join(' ',@File_options) . " to ${final}.${suffix}\n" if $Verbose;
2562 $to_do = "$Cat $tmp >> ${final}.${suffix}";
2563 &run_something($to_do, "Saving copy of .${suffix} file");
2570 Command-line processor
2576 # can't use getopt(s); what we want is too complicated
2578 arg: while($_ = $Args[0]) {
2581 #---------- help -------------------------------------------------------
2582 if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; }
2584 #-----------version ----------------------------------------------------
2585 /^--version$/ && do { print STDERR "${ProjectName}, version ${ProjectVersion}, patchlevel ${ProjectPatchLevel}\n"; exit $Status; };
2587 #---------- verbosity and such -----------------------------------------
2588 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
2590 #---------- what phases are to be run ----------------------------------
2591 /^-(no-)?recomp/ && do { $Do_recomp_chkr = ($1 eq '') ? 1 : 0; next arg; };
2593 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
2594 # change the global default:
2595 # we won't run cat; we'll run the real thing
2597 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
2599 # stop after generating C
2601 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
2602 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
2604 # leave out actual C generation (debugging) [also turns off interface gen]
2606 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
2607 # _do_ generate an interface; usually used as: -noC -hi
2609 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
2610 # don't generate an interface (even if generating C)
2612 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
2613 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
2614 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
2615 /^-keep-hi-diffs$/ && do { $Keep_HiDiffs = 1; next arg; };
2617 # show/disable diffs if the interface file changes
2619 /^-E$/ && do { push(@CcBoth_flags, '-E');
2620 $Only_preprocess_C = 1;
2621 $Do_as = 0; $Do_lnkr = 0; next arg; };
2622 # stop after preprocessing C
2623 /^-M$/ && do { $Only_generate_deps = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2624 # only generate dependency information.
2625 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
2626 # stop after generating assembler
2628 /^-c$/ && do { $Do_lnkr = 0; next arg; };
2629 # stop after generating .o files
2631 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
2632 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
2633 # don't do consistency-checking after a link
2635 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', '');
2636 $Tmp_prefix = "$Tmp_prefix/ghc$$";
2637 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
2639 # use an alternate directory for temp files
2641 #---------- redirect output --------------------------------------------
2643 # -o <file>; applies to the last phase, whatever it is
2644 # "-o -" sends it to stdout
2645 # if <file> has a directory component, that dir must already exist
2647 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', '');
2649 # Hack, of the worst sort: don't do validation of
2650 # odir argument if you're using -M (dependency generation).
2652 if ( ! $Only_generate_deps && ! -d $Specific_output_dir) {
2653 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
2658 /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', '');
2659 if ($Specific_output_file ne '-'
2660 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
2661 local($dir_part) = $1;
2662 if (! -d $dir_part) {
2663 print STDERR "$Pgm: no such directory: $dir_part\n";
2669 # NB: -isuf not documented yet (because it doesn't work yet)
2670 /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', '');
2671 if ($Isuffix =~ /\./ ) {
2672 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
2677 /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', '');
2678 if ($Osuffix =~ /\./ ) {
2679 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
2684 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
2685 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', '');
2686 if ($Specific_hi_file ne '-'
2687 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
2688 local($dir_part) = $1;
2689 if (! -d $dir_part) {
2690 print STDERR "$Pgm: no such directory: $dir_part\n";
2696 # The suffix to use when looking for interface files
2697 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', '');
2698 if ($HiSuffix =~ /\./ ) {
2699 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
2703 # ToDo: remove, not a `normal' user thing to do (should be automatic)
2704 /^-hisuf-prelude$/ && do { $HiSuffix_prelude = &grab_arg_arg(*Args,'-hisuf-prelude', '');
2705 if ($HiSuffix =~ /\./ ) {
2706 print STDERR "$Pgm: -hisuf-prelude suffix shouldn't contain a .\n";
2710 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', '');
2711 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
2712 local($dir_part) = $1;
2713 if (! -d $dir_part) {
2714 print STDERR "$Pgm: no such directory: $dir_part\n";
2720 #-------------- scc & Profiling Stuff ----------------------------------
2722 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
2725 # generate auto SCCs on top level bindings
2726 # -auto-all = all top level bindings
2727 # -auto = only top level exported bindings
2728 $PROFauto = ( /-all/ )
2729 ? '-fauto-sccs-on-all-toplevs'
2730 : '-fauto-sccs-on-exported-toplevs';
2733 /^-caf-all/ && do { # generate individual CAF SCC annotations
2734 $PROFcaf = '-fauto-sccs-on-individual-cafs';
2737 /^-ignore-scc$/ && do {
2738 # forces ignore of scc annotations even if profiling
2739 $PROFignore_scc = '-W';
2742 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
2745 /^-unprof-scc-auto/ && do {
2746 # generate auto SCCs on top level bindings when not profiling.
2747 # Used to measure optimisation effects of presence of sccs.
2748 $UNPROFscc_auto = ( /-all/ )
2749 ? '-fauto-sccs-on-all-toplevs'
2750 : '-fauto-sccs-on-exported-toplevs';
2753 #--------- ticky/concurrent/parallel -----------------------------------
2754 # we sort out the details a bit later on
2756 /^-concurrent$/ && do { $CONCURing = 'c'; &add_syslib('conc'); next arg; };
2757 # concurrent Haskell; implies -syslib conc
2758 /^-gransim$/ && do { $GRANing = 'g'; next arg; }; # GranSim
2759 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
2760 /^-parallel$/ && do { $PARing = 'p'; next arg; }; # parallel Haskell
2762 #-------------- "user ways" --------------------------------------------
2764 (/^-user-setup-([a-oA-Z])$/ ) &&
2766 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
2768 local($stuff) = $UserSetupOpts{$BuildTag};
2769 local(@opts) = split(/\s+/, $stuff);
2771 # feed relevant ops into the arg-processing loop (if any)
2772 unshift(@Args, @opts) if $#opts >= 0;
2776 #---------- set search paths for libraries and things ------------------
2778 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
2779 # prepends the items to the list); -I is for including C .h files.
2781 /^-i$/ && do { @Import_dir = (); # import path cleared!
2782 @SysImport_dir = ();
2783 print STDERR "WARNING: import paths cleared by `-i'\n";
2786 /^-i(.*)/ && do { local(@new_items)
2787 = split( /:/, &grab_arg_arg(*Args,'-i', $1));
2788 unshift(@Import_dir, @new_items);
2791 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; };
2792 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; };
2793 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; };
2795 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1);
2796 print STDERR "$Pgm: no such system library (-syslib): $syslib\n",
2797 $Status++ unless $syslib =~ /^(exts|misc|posix)$/;
2800 # The posix library is a `special' in that it relies on
2801 # the ghc system library (packed strings). Wielding our
2802 # sledgehammer, the problem is solved by silently including
2803 # the ghc system library as well.
2804 # (ToDo: `nub' -syslib list)
2806 &add_syslib($syslib);
2807 if ( $syslib eq 'posix' ) {
2808 &add_syslib('misc');
2809 } elsif ( $syslib eq 'misc' &&
2810 $TargetName =~ /-solaris2$/ ) {
2811 # needed for Berkeley socket/nwork stuff.
2812 push(@SysLibrary, '-lnsl');
2816 #=======================================================================
2817 # various flags that we can harmlessly send to one program or another
2818 # (we will later "reclaim" some of the compiler ones now sent to gcc)
2819 #=======================================================================
2821 #---------- this driver itself (ghc) -----------------------------------
2822 # these change what executable is run for each phase:
2823 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
2824 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
2825 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
2826 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
2827 /^-pgma(.*)$/ && do { $As = $1; next arg; };
2828 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
2829 /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; };
2831 #---------- the get-anything-through opts (all pgms) -------------------
2832 # these allow arbitrary option-strings to go to any phase:
2833 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
2834 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
2835 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
2836 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
2837 /^-optp(.*)$/ && do { push(@HsP_flags, $1); next arg; };
2838 /^-optcpp(.*)$/ && do { push(@Cpp_define, $1); $Only_preprocess_hc = ($1 eq "-E"); next arg; };
2839 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
2840 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
2841 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
2842 /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; };
2844 #---------- Haskell C pre-processor (hscpp) ----------------------------
2845 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; };
2846 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; };
2848 /^-genSPECS/ && do { $Cpp_flag_set = 1;
2849 $genSPECS_flag = $_;
2852 #---------- post-Haskell "assembler"------------------------------------
2853 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
2854 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
2856 #---------- Haskell compiler (hsc) -------------------------------------
2858 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
2859 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
2861 /^-fhaskell-1\.3$/ && do { next arg; }; # a no-op right now
2863 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
2865 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
2866 # don't do stack checking using page fault `trick'.
2868 /^-fstack-check$/ && do { $StkChkByPageFaultOK = 0; next arg; };
2870 # have the compiler proper generate concurrent code,
2871 # really only used when you want to configure your own
2872 # special user compilation way. (Use -concurrent when
2873 # compiling `Concurrent Haskell' programs).
2875 # (ditto for -fgransim, fscc-profiling and -fticky-ticky)
2877 /^-fconcurrent$/ && do { push(@HsC_flags,$_); next arg; };
2878 /^-fscc-profiling$/ && do { push(@HsC_flags,$_); next arg; };
2879 /^-fticky-ticky$/ && do { push(@HsC_flags,$_); next arg; };
2880 /^-fgransim$/ && do { push(@HsC_flags,$_); next arg; };
2882 /^-split-objs/ && do {
2883 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|rs6000|sparc)-/ ) {
2885 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
2890 push(@HsC_flags, "-fglobalise-toplev-names");
2891 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
2893 require('ghc-split.prl')
2894 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
2899 && do { push(@HsC_flags, $_);
2900 push(@HsP_flags, '-N');
2902 # push(@HsC_flags, '-fshow-import-specs');
2904 # -fglasgow-exts implies -syslib exts
2905 &add_syslib('exts');
2909 /^-fspeciali[sz]e-unboxed$/
2910 && do { $Oopt_DoSpecialise = '-fspecialise';
2911 $Oopt_SpecialiseUnboxed = '-fspecialise-unboxed';
2914 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
2915 /^-fno-speciali[sz]e$/
2916 && do { $Oopt_DoSpecialise = ''; next arg; };
2919 # Now the foldr/build options, which are *on* by default (for -O).
2922 && do { $Oopt_FoldrBuild = 1;
2923 $Oopt_FB_Support = '-fdo-arity-expand';
2927 /^-fno-foldr-build$/
2928 && do { $Oopt_FoldrBuild = 0;
2929 $Oopt_FB_Support = '';
2932 /^-fno-foldr-build-rule$/
2933 && do { $Oopt_FoldrBuild = 0;
2936 /^-fno-enable-tech$/
2937 && do { $Oopt_FB_Support = '';
2940 /^-fno-snapback-to-append$/
2941 && do { $Oopt_FoldrBuildInline .= ' -fdo-not-fold-back-append ';
2944 # --------------- Renamer -------------
2947 /^-fno-prune-tydecls$/ && do { push(@HsC_flags, $_); next arg; };
2948 /^-fno-prune-instdecls$/ && do { push(@HsC_flags, $_); next arg; };
2952 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
2953 /^-fvia-[cC]$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
2957 /^(-funfolding-use-threshold)(.*)$/
2958 && do { $Oopt_UnfoldingUseThreshold = $1 . &grab_arg_arg(*Args,$1, $2);
2961 /^(-fmax-simplifier-iterations)(.*)$/
2962 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2);
2964 /^(-fshow-simplifier-progress)/
2965 && do { $Oopt_ShowSimplifierProgress = $1;
2968 /^-fno-pedantic-bottoms$/
2969 && do { $Oopt_PedanticBottoms = ''; next arg; };
2971 /^-fdo-monad-eta-expansion$/
2972 && do { $Oopt_MonadEtaExpansion = $_; next arg; };
2974 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
2975 && do { push(@HsC_flags, $_); next arg; };
2977 /^(-freturn-in-regs-threshold)(.*)$/
2978 && do { local($what) = $1;
2979 local($num) = &grab_arg_arg(*Args,$what, $2);
2980 if ($num < 2 || $num > 8) {
2981 die "Bad experimental flag: $_\n";
2983 $HscOut = '-C='; # force using C compiler
2984 push(@HsC_flags, "$what$num");
2985 push(@CcRegd_flags, "-D__STG_REGS_AVAIL__=$num");
2989 # --------------- Warnings etc. ------
2991 /^-fshow-import-specs/
2992 && do { push(@HsC_flags, $_); next arg; };
2994 /^-fsignatures-required/
2995 && do { push(@HsC_flags, $_); next arg; };
2997 /^-fwarn-(.*)$/ && do { push(@HsC_flags, $_); next arg; };
2999 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
3000 &squashHscFlag("-f$1");
3003 /^-W$/ && do { push(@HsC_flags, @MinusWOpts); next arg; };
3004 /^-Wall$/ && do { push(@HsC_flags, @MinusWallOpts); next arg; };
3005 /^(-Wnot|w)$/ && do { foreach (@Hsc_flags) {
3006 /^-fwarn-(.*)$/ && do { $_=''; };
3008 push(@HsC_antiflags, @StandardWarnings);
3011 # --------------- platform specific flags (for gcc mostly) ----------------
3013 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes,
3014 # for 2.6.x..?, does not apply for 2.7.2
3016 unshift(@CcBoth_flags, ( $_ ));
3019 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
3020 && do { # for GCC for SPARCs
3021 unshift(@CcBoth_flags, ( $_ ));
3024 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
3025 $StolenX86Regs = $1;
3028 #*************** ... and lots of debugging ones (form: -d* )
3030 # -d(no-)core-lint is done this way so it is turn-off-able.
3031 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
3032 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
3033 # Ditto for STG lint
3034 /^-dstg-lint/ && do { $StgLint = '-dstg-lint'; next arg; };
3035 /^-dno-stg-lint/ && do { $StgLint = ''; next arg; };
3037 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
3038 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
3039 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
3040 /^-dshow-rn-stats/ && do { push(@HsC_flags, $_); next arg; };
3041 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
3042 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
3043 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
3044 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
3046 #*************** ... and now all these -R* ones for its runtime system...
3048 /^-Rscale-sizes?(.*)/ && do {
3049 $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1);
3052 /^(-H|-Rmax-heapsize)(.*)/ && do {
3053 local($heap_size) = &grab_arg_arg(*Args,$1, $2);
3054 if ($heap_size =~ /(\d+)[Kk]$/) {
3055 $heap_size = $1 * 1000;
3056 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
3057 $heap_size = $1 * 1000 * 1000;
3058 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
3059 $heap_size = $1 * 1000 * 1000 * 1000;
3061 if ($heap_size <= 0) {
3062 print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n";
3063 $Specific_heap_size = 0;
3065 # if several heap sizes given, take the largest...
3066 } elsif ($heap_size >= $Specific_heap_size) {
3067 $Specific_heap_size = $heap_size;
3069 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n";
3073 /^(-K|Rmax-(stk|stack)size)(.*)/ && do {
3075 local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3);
3076 if ($stk_size =~ /(\d+)[Kk]$/) {
3077 $stk_size = $1 * 1000;
3078 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
3079 $stk_size = $1 * 1000 * 1000;
3080 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
3081 $stk_size = $1 * 1000 * 1000 * 1000;
3083 if ($stk_size <= 0) {
3084 print STDERR "$Pgm: resetting stack-size to zero!!! $stk_size\n";
3085 $Specific_stk_size = 0;
3087 # if several stack sizes given, take the largest...
3088 } elsif ($stk_size >= $Specific_stk_size) {
3089 $Specific_stk_size = $stk_size;
3091 print STDERR "$Pgm: ignoring stack-size-setting option ($flag $stk_size)...not the largest seen\n";
3095 /^-Rgc-stats$/ && do { $CollectingGCstats++;
3096 # the two RTSs do this diff ways; we will try to compensate
3099 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
3101 #---------- C high-level assembler (gcc) -------------------------------
3102 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
3104 # -dgcc-lint is a useful way of making GCC very fussy.
3105 # From alan@spri.levels.unisa.edu.au (Alan Modra).
3106 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
3107 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
3108 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
3110 # inject "#include <wurble>" into the compiler's C output!
3112 /^-#include(.*)/ && do {
3113 local($to_include) = &grab_arg_arg(*Args,'-#include', $1);
3114 push(@CcInjects, "#include $to_include\n");
3117 #---------- Linker (gcc, really) ---------------------------------------
3119 /^-static$/ && do { push(@Ld_flags, $_); next arg; };
3121 #---------- mixed cc and linker magic ----------------------------------
3122 # this optimisation stuff is finally sorted out later on...
3124 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
3126 /^-O[1-2]?$/ && do {
3127 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
3128 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
3130 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
3133 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
3135 /^-Ofile(.*)/ && do {
3137 local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1);
3138 @HsC_minusO3_flags = ();
3140 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
3143 s/\#.*//; # death to comments
3144 s/[ \t]+//g; # death to whitespace
3145 next if /^$/; # ditto, blank lines
3146 s/([()*{}])/\\$1/g; # protect shell metacharacters
3148 push(@CcBoth_flags, $1);
3150 push(@HsC_minusO3_flags, $_);
3156 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
3157 # in the consistency info
3161 #---------- linking .a file --------------------------------------------
3163 /^-Main(.*)/ && do {
3164 # specifies main or mainPrimIO to be linked
3168 #---------- catch unrecognized flags -----------------------------------
3171 print STDERR "$Pgm: unrecognised option: $_\n";
3177 } # end of processArgs