1 % (c) The GRASP/AQUA Project, Glasgow University, 1992-1997
4 This is the driver script for the Glasgow Haskell compilation system.
5 It is written in \tr{perl}. The first section includes a long
6 ``usage'' message that describes how the driver is supposed to work.
8 %************************************************************************
10 \section[Driver-usage]{Usage message}
12 %************************************************************************
15 ($Pgm = $0) =~ s|.*/||;
16 $ShortUsage = "\nUsage: For basic information, try the `-help' option.\n";
17 $LongUsage = "\n" . <<EOUSAGE;
18 Use of the Glorious Haskell Compilation System driver:
20 $Pgm [command-line-options-and-input-files]
22 ------------------------------------------------------------------------
23 This driver ($Pgm) guides each input file through (some of the)
24 possible phases of a compilation:
26 - unlit: extract code from a "literate program"
27 - hscpp: run code through the C pre-processor (if -cpp flag given)
28 - hsc: run the Haskell compiler proper
29 - gcc: run the C compiler (if compiling via C)
30 - as: run the assembler
33 For each input file, the phase to START with is determined by the
35 - .lhs literate Haskell: unlit
36 - .hs illiterate Haskell: hsc
37 - .hc C from the Haskell compiler: gcc
38 - .c C not from the Haskell compiler: gcc
39 - .s assembly language: as
40 - other passed directly to the linker: ld
42 If no files are given on the command line, input is taken from
43 standard input, and processing is as for an .hs file. (All output is
44 to stdout or stderr, however).
46 The phase at which to STOP processing is determined by a command-line
48 -E stop after generating preprocessed, de-litted Haskell (used in conjunction with -cpp)
49 -C stop after generating C (.hc output)
50 -S stop after generating assembler (.s output)
51 -c stop after generating object files (.o output)
53 Other commonly-used options are:
55 -O An `optimising' package of compiler flags, for faster code
57 -prof Compile for cost-centre profiling
58 (add -auto for automagic cost-centres on top-level functions)
60 -fglasgow-exts Allow Glasgow extensions (unboxed types, etc.)
62 -H14m Increase compiler's heap size
64 -M Output the Makefile rules recording the
65 dependencies of a list of Haskell files.
66 (ghc driver script calls upon the help of a
67 compatible mkdependHS script to do the actual
70 The User's Guide has more information about GHC's *many* options.
72 Given the above, here are some TYPICAL invocations of $Pgm:
74 # compile a Haskell module to a .o file, optimising:
76 # link three .o files into an executable called "test":
77 % $Pgm -o test Foo.o Bar.o Baz.o
78 # compile a Haskell module to C (a .hc file), using a bigger heap:
79 % $Pgm -C -H16m Foo.hs
80 # compile Haskell-produced C (.hc) to assembly language:
82 ------------------------------------------------------------------------
86 %************************************************************************
88 \section[Driver-init]{Initialisation}
90 %************************************************************************
92 The driver script need to be told where to find these executables, so
93 in the course of building the driver `executable', make-variables holding
94 these are prepended to the de-litted version of this file. The variables are:
99 HOSTPLATFORM TARGETPLATFORM
101 ProjectName ProjectVersion ProjectVersionInt
103 HscMajorVersion HscMinorVersion CcMajorVersion CcMinorVersion
107 bindir libdir libexecdir datadir
111 GHC_LIB_DIR GHC_RUNTIME_DIR GHC_INCLUDE_DIR
113 GHC_OPT_HILEV_ASM GhcWithNativeCodeGen
115 GHC_UNLIT GHC_HSCPP GHC_MKDEPENDHS GHC_HSC GHC_SYSMAN
119 WAY_*_NAME WAY_*_REAL_OPTS
127 Establish what executables to run for the various phases, what the
128 default options are for those phases, and other similar boring stuff.
131 select(STDERR); $| = 1; select(STDOUT); # no STDERR buffering, please.
133 $TargetPlatform = $TARGETPLATFORM;
135 $TopPwd = "${TOP_PWD}";
136 $InstBinDirGhc = "${bindir}";
137 $InstLibDirGhc = "${libdir}";
139 # Normally the same as InstLibDirGhc, but we accommodate
140 # for it being separate.
142 $InstLibExecDirGhc = "${libexecdir}";
143 $InstDataDirGhc = "${datadir}";
145 $Status = 0; # just used for exit() status
148 # set up signal handler
149 sub quit_upon_signal { &tidy_up_and_die(1, ''); }
150 $SIG{'INT'} = 'quit_upon_signal';
151 $SIG{'QUIT'} = 'quit_upon_signal';
153 # where to get "require"d .prl files at runtime (poor man's dynamic loading)
154 # (use LIB, not DATA, because we can't be sure of arch-independence)
155 @INC = ( ( $INSTALLING ) ? $InstLibDirGhc
156 : "$TopPwd/${CURRENT_DIR}" );
158 if ( $ENV{'TMPDIR'} ) { # where to make tmp file names
159 $Tmp_prefix = ($ENV{'TMPDIR'} . "/ghc$$");
161 print STDERR "TMPDIR has not been set to anything useful!\n" if (${TMPDIR} eq '');
162 $Tmp_prefix ="${TMPDIR}/ghc$$"; # TMPDIR set via Makefile when booting..
163 $ENV{'TMPDIR'} = ${TMPDIR}; # set the env var as well
166 # Some shells run into real trouble when command line and environment
167 # gets big (e.g., cmd lines of >4K to /bin/sh causes havoc on our
168 # Solaris-2.5.1 boxes - even though sysconf(_SC_ARG_MAX) reports 1M ...).
169 # To work around any such */bin/sh* problems, we will scribble such
170 # awfully long command lines into a temp file and exec that temp file
171 # with $(REAL_SHELL) (don't use the SHELL variable directly as this
172 # will normally get you the wrong thing when the driver is invoked
173 # from within `make'). If the REAL_SHELL variable isn't set, you'll
174 # get SHELL. This is all a terrible hack. (in case you hadn't reached
175 # the same conclusion by now :-)
179 if ( ! $ENV{'REAL_SHELL'} ) {
180 $ENV{'REAL_SHELL'} = $ENV{'SHELL'};
183 @Files_to_tidy = (); # files we nuke in the case of abnormal termination
185 $Unlit = ( $INSTALLING ) ? "$InstLibExecDirGhc/unlit"
186 : "$TopPwd/${CURRENT_DIR}/${GHC_UNLIT}";
190 $Diff = $CONTEXT_DIFF;
195 $HsCpp = # but this is re-set to "cat" (after options) if -cpp not seen
196 ( $INSTALLING ) ? "$InstLibExecDirGhc/hscpp"
197 : "$TopPwd/${CURRENT_DIR}/${GHC_HSCPP}";
200 $HsC = ( $INSTALLING ) ? "$InstLibExecDirGhc/hsc"
201 : "$TopPwd/${CURRENT_DIR}/${GHC_HSC}";
203 # For PVM fiends only
204 $SysMan = ( $INSTALLING ) ? "$InstLibExecDirGhc/SysMan"
205 : "$TopPwd/${CURRENT_DIR}/${GHC_SYSMAN}";
210 # HsC_rts_flags: if we want to talk to the LML runtime system
211 # NB: we don't use powers-of-2 sizes, because this may do
212 # terrible things to cache behavior.
214 $Specific_heap_size = 6 * 1000 * 1000;
215 $Specific_stk_size = 1000 * 1000;
216 $Scale_sizes_by = 1.0;
220 The variables set by @setupOptFlags@ represent parts of the
221 -O/-O2/etc ``templates,'' which are filled in later, using these.
222 These are the default values, which may be changed by user flags.
226 $Oopt_MaxSimplifierIterations = '-fmax-simplifier-iterations4';
227 $Oopt_PedanticBottoms = '-fpedantic-bottoms'; # ON by default
228 $Oopt_FinalStgProfilingMassage = '';
230 $Oopt_DoSpecialise = '-fspecialise';
231 $Oopt_FoldrBuild = 0; # *Off* by default!
232 $Oopt_UsageSPInf = ''; # Off by default
233 } # end of setupOptFlags
235 # Assign defaults to these right away.
239 Things to do with C compilers/etc:
241 (added -Wimplicit: implicit prototypes cause very hard-to-find
242 problems, so I'm turing on the warnings -- SDM 4/5/98)
245 $CcRegd = $GHC_OPT_HILEV_ASM;
246 @CcBoth_flags = ('-S','-Wimplicit'); # flags for *any* C compilation
250 # those for all files,
251 # those only for .c files;
252 # those only for .hc files
255 @CcRegd_flags_c = ();
256 @CcRegd_flags_hc = ();
258 $As = ''; # "assembler" is normally GCC
261 $Lnkr = ''; # "linker" is normally GCC
265 # 'nm' is used for consistency checking (ToDo: mk-world-ify)
266 # ToDo: check the OS or something ("alpha" is surely not the crucial question)
267 $Nm = ($TargetPlatform =~ /^alpha-/) ? 'nm -B' : 'nm';
270 Warning packages that are controlled by -W and -Wall. The 'standard'
271 warnings that you get all the time are
273 -fwarn-overlapping-patterns
274 -fwarn-missing-methods
275 -fwarn-duplicate-exports
277 these are turned off by -Wnot.
280 @StandardWarnings = ('-fwarn-overlapping-patterns',
281 '-fwarn-missing-methods',
282 '-fwarn-missing-fields',
283 '-fwarn-duplicate-exports');
284 @MinusWOpts = (@StandardWarnings,
285 '-fwarn-unused-binds',
286 '-fwarn-unused-matches',
287 '-fwarn-incomplete-patterns',
288 '-fwarn-unused-imports');
289 @MinusWallOpts = (@MinusWOpts,
290 '-fwarn-type-defaults',
291 '-fwarn-name-shadowing',
292 '-fwarn-missing-signatures');
295 What options \tr{-user-setup-a} turn into (user-defined ``packages''
297 of options). Note that a particular user-setup implies a particular
298 Prelude ({\em including} its interface file(s)).
300 $BuildTag = ''; # default is sequential build w/ Appel-style GC
302 %BuildDescr = (# system ways begin
303 '', 'Normal Sequential',
305 '_t', "Ticky-ticky Profiling",
306 '_u', "Unregisterised",
327 '_B', "$WAY_B_NAME" );
329 # these are options that are "fed back" through the option processing loop
333 '_a', "$WAY_a_REAL_OPTS",
334 '_b', "$WAY_b_REAL_OPTS",
335 '_c', "$WAY_c_REAL_OPTS",
336 '_d', "$WAY_d_REAL_OPTS",
337 '_e', "$WAY_e_REAL_OPTS",
338 '_f', "$WAY_f_REAL_OPTS",
339 '_g', "$WAY_g_REAL_OPTS",
340 '_h', "$WAY_h_REAL_OPTS",
341 '_i', "$WAY_i_REAL_OPTS",
342 '_j', "$WAY_j_REAL_OPTS",
343 '_k', "$WAY_k_REAL_OPTS",
344 '_l', "$WAY_l_REAL_OPTS",
345 '_m', "$WAY_m_REAL_OPTS",
346 '_n', "$WAY_n_REAL_OPTS",
347 '_o', "$WAY_o_REAL_OPTS",
348 '_A', "$WAY_A_REAL_OPTS",
349 '_B', "$WAY_B_REAL_OPTS",
352 '_p', "-fscc-profiling -DPROFILING -optc-DPROFILING",
353 '_t', "-fticky-ticky -DTICKY_TICKY -optc-DTICKY_TICKY",
354 '_u', "-optc-DNO_REGS -optc-DUSE_MINIINTERPRETER -fno-asm-mangling -funregisterised",
355 '_s', "-fsmp -optc-pthread -optl-pthread -optc-DSMP",
356 '_mp', "-fparallel -D__PARALLEL_HASKELL__ -optc-DPAR",
357 '_mg', "-fgransim -D__GRANSIM__ -optc-DGRAN");
359 # where to look for interface files (system hi's, i.e., prelude and syslibs)
360 @SysImport_dir = ( $INSTALLING )
361 ? ( "$InstLibDirGhc/imports/std" )
362 : ( "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std" );
364 # We need to look in ghc/ and glaExts/ when searching for implicitly needed .hi files, but
365 # we should really *not* look there for explicitly imported modules.
367 $Haskell1Version = 5; # i.e., Haskell 1.4
370 # Cpp symbols defined when we're processing Haskell source.
374 , "-D__HASKELL1__=$Haskell1Version"
375 , "-D__GLASGOW_HASKELL__=$ProjectVersionInt"
377 , "-D__CONCURRENT_HASKELL__"
381 @SysLibrary_dir = ( ( $INSTALLING ) #-syslib things supplied by the system
383 : ( "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR"
384 , "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/gmp"
385 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std"
386 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std/cbits"
390 # make depend for Haskell
392 = ( $INSTALLING ) ? "$InstLibExecDirGhc/mkdependHS"
393 : "$TopPwd/$CURRENT_DIR/$GHC_MKDEPENDHS";
395 @MkDependHS_flags = ();
397 # do_link flag should not be reset while rescanning the cmd-line.
399 $Specific_output_dir = ''; # set by -odir <dir>
400 $Specific_output_file = ''; # set by -o <file>; "-" for stdout
403 Function to initialise the per-compilation-unit globals that
404 are used to guide and control the invocation of the different phases.
407 sub initDriverGlobals {
409 # reset the following options:
410 # RTS flags to use while compiling
416 The optimisations/etc to be done by the compiler are {\em normally}
417 expressed with a \tr{-O} (or \tr{-O2}) flag, or by its absence.
420 $OptLevel = 0; # no -O == 0; -O == 1; -O2 == 2; -Ofile == 3
421 $MinusO2ForC = 0; # set to 1 if -O2 should be given to C compiler
422 $StolenX86Regs = 4; # **HACK*** of the very worst sort
427 # The SplitMarker is the string/character used to mark end of element
430 @Import_dir = ('.'); #-i things
431 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
433 @UserLibrary_dir= (); #-L things;...
434 @UserLibrary = (); #-l things asked for by the user
436 @SysLibrary = (); # will be built up as we go along
439 We are given a list of files with various presumably-known suffixes
440 (unknown-suffix files go straight to the linker). For each file, we
441 begin by assuming that we'll run every phase over it. However: (1)
442 global flags (\tr{-c}, \tr{-S}, etc.) tell us not to run any phase
443 past a certain point; and (2) the file's suffix tells us what phase to
444 start with. Linking is weird and kept track of separately.
446 Here are the initial defaults applied to all files:
448 $Cpp_flag_set = 0; # (hack)
449 $Only_preprocess_C = 0; # pretty hackish
450 $Only_preprocess_hc = 0; # ditto
451 $Only_generate_deps = 0; # ""
452 $Only_generate_dll = 0;
453 $PostprocessCcOutput = 0;
456 # static = 0 => produce code for DLLs (when compiling & linking.)
458 $Static = 0 if ($EnableWin32DLLs eq 'YES');
460 # native code-gen or via C?
461 $HaveNativeCodeGen = $GhcWithNativeCodeGen;
462 $HscOut = '-C='; # '-C=' ==> .hc output; '-S=' ==> .s output; '-N=' ==> neither
464 if ($HaveNativeCodeGen ne 'YES') && $TargetPlatform =~ /^(alpha)-/;
465 # TEMP: disable x86 & Sparc if $HaveNativeCodeGen && $TargetPlatform =~ /^(i386|alpha|sparc)-/;
466 $ProduceHi = '-hifile=';
472 $CollectingGCstats = 0;
473 $CollectGhcTimings = 0;
474 $DEBUGging = ''; # -DDEBUG and all that it entails (um... not really)
475 $PROFing = ''; # set to p or e if profiling
476 $PROFgroup = ''; # set to group if an explicit -Ggroup specified
477 $PROFauto = ''; # set to relevant hsc flag if -auto or -auto-all
478 $PROFcaf = ''; # set to relevant hsc flag if -caf-all
479 $PROFdict = ''; # set to relevant hsc flag if -auto-dicts
480 $PROFignore_scc = ''; # set to relevant parser flag if explicit sccs ignored
481 $UNPROFscc_auto = ''; # set to relevant hsc flag if forcing auto sccs without profiling
482 $TICKYing = ''; # set to t if compiling for ticky-ticky profiling
483 $PARing = ''; # set to p if compiling for PAR
484 $GRANing = ''; # set to g if compiling for GRAN
485 $UNREGing = ($GhcWithRegisterised eq 'YES') ? '' : 'u';
486 $Specific_hi_file = ''; # set by -ohi <file>; "-" for stdout
487 $Specific_dump_file = ''; # set by -odump <file>; "-" for stdout
488 $Using_dump_file = 0;
490 $Osuffix = ''; # default: use the normal suffix for that kind of output
492 $HiSuffix_prelude = '';
494 $Do_recomp_chkr = 0; # don't use the recompilatio checker unless asked
495 $Do_cc = -1; # a MAGIC indeterminate value; will be set to 1 or 0.
498 $Keep_hc_file_too = 0;
499 $Keep_s_file_too = 0;
500 $UseGhcInternals = 0; # if 1, may use GHC* modules
502 $DoAsmMangling = 1; # on by default, off by -fno-asm-mangling
504 $Dump_parser_output = 0;
506 $Dump_asm_splitting_info = 0;
507 $NoImplicitPrelude = 0;
508 # 1 => don't tell the linker to hoist in PrelMain.Main, as an
509 # external main is provided instead.
512 } # end of initDriverGlobals (Sigh)
514 # we split the argv passed to the driver into three:
519 # and files to be linked...
525 # cmd line options prefixing the unit we're compiling
530 We inject consistency-checking information into \tr{.hc} files (both
531 when created by the Haskell compiler and when compiled by the C
532 compiler), so that we can check that an executable is made from
533 consistently-built pieces. (The check is normally done just after
534 linking.) The checking is done by introducing/munging
535 \tr{what(1)}-style strings. Anyway, here are the relevant global
536 variables and their defaults:
538 $LinkChk = 0; # set to 0 if the link check should *not* be done
540 # major & minor version numbers; major numbers must always agree;
541 # minor disagreements yield a warning.
542 $HsC_major_version = $HscMajorVersion;
543 $HsC_minor_version = $HscMinorVersion;
544 $Cc_major_version = $CcMajorVersion;
545 $Cc_minor_version = $CcMinorVersion;
547 # options: these must always agree
548 $HsC_consist_options = ''; # we record, in this order:
549 # Build tag; debugging?
550 $Cc_consist_options = ''; # we record, in this order:
551 # Build tag; debugging?
554 %************************************************************************
556 \section[Driver-parse-argv]{Munge the command-line options}
558 %************************************************************************
560 Now slurp through the arguments.
563 &initDriverGlobals();
564 &splitCmdLine(@ARGV);
565 # Run through the cmd-line first time.
566 &processArgs(@Cmd_opts);
568 # Check to see if driver is only in the business
569 # to generate dependencies
570 if ( $Status == 0 && $Only_generate_deps ) {
572 push (@MkDependHS_flags, "-o$Osuffix") if $Osuffix;
573 # They're not (currently) needed, but we need to quote any -#include options
574 foreach (@Cmd_opts) {
575 s/-#include.*$/'$&'/g;
577 local($to_do) = "$MkDependHS @MkDependHS_flags @HsSourceCppOpts -- @Cmd_opts -- @Input_file" ;
578 &run_something($to_do, 'Haskell dependencies');
582 # ..or just to construct a (Haskell) DLL.
583 if ( $Status == 0 && $Only_generate_dll && $EnableWin32DLLs ) {
589 # if there are several input files,
590 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
591 # (except if linking, of course)
593 if ($#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 {
686 # this pass-ordering sequence was agreed by Simon and Andr\'e
687 # (WDP 94/07, 94/11).
693 $Oopt_MaxSimplifierIterations,
697 $Oopt_FinalStgProfilingMassage
700 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
704 '-fdo-eta-reduction',
705 '-fdo-lambda-eta-expansion',
709 $Oopt_PedanticBottoms,
711 # initial simplify: mk specialiser happy: minimum effort please
715 '-finline-phase0', # Don't inline anything till full laziness has bitten
716 # In particular, inlining wrappers inhibits floating
717 # e.g. ...(case f x of ...)...
718 # ==> ...(case (case x of I# x# -> fw x#) of ...)...
719 # ==> ...(case x of I# x# -> case fw x# of ...)...
720 # and now the redex (f x) isn't floatable any more
722 '-fno-rules', # Similarly, don't apply any rules until after full laziness
723 # Notably, list fusion can prevent floating.
725 '-fmax-simplifier-iterations2',
728 # Specialisation is best done before full laziness
729 # so that overloaded functions have all their dictionary lambdas manifest
730 ($Oopt_DoSpecialise) ? ( $Oopt_DoSpecialise, ) : (),
736 # # Run the simplifier before specialising, so that overloaded functions
737 # # look like f = \d -> ...
738 # # (Full laziness may lift out something hiding the \d
740 # '-fmax-simplifier-iterations1',
747 # Want to run with inline phase 1 after the specialiser to give
748 # maximum chance for fusion to work before we inline build/augment
749 # in phase 2. This made a difference in 'ansi' where an overloaded
750 # function wasn't inlined till too late.
751 $Oopt_MaxSimplifierIterations,
754 $Oopt_UsageSPInf, # infer usage information here in case we need it later.
755 # (add more of these where you need them --KSW 1999-04)
759 # Need inline-phase2 here so that build/augment get
760 # inlined. I found that spectral/hartel/genfft lost some useful
761 # strictness in the function sumcode' if augment is not inlined
762 # before strictness analysis runs
765 $Oopt_MaxSimplifierIterations,
775 $Oopt_MaxSimplifierIterations,
776 # No -finline-phase: allow all Ids to be inlined now
779 '-ffull-laziness', # nofib/spectral/hartel/wang doubles in speed if you
780 # do full laziness late in the day. It only happens
781 # after fusion and other stuff, so the early pass doesn't
782 # catch it. For the record, the redex is
783 # f_el22 (f_el21 r_midblock)
785 # We want CSE to follow the final full-laziness pass, because it may
786 # succeed in commoning up things floated out by full laziness.
788 # CSE must immediately follow a simplification pass, because it relies
789 # on the no-shadowing invariant. See comments at the top of CSE.lhs
790 # So it must NOT follow float-inwards, which can give rise to shadowing,
791 # even if its input doesn't have shadows. Hence putting it between
798 # Case-liberation for -O2. This should be after
799 # strictness analysis and the simplification which follows it.
803 # : "-fliberate-case -fsimplify [ $Oopt_FB_Support -ffloat-lets-exposing-whnf -ffloat-primops-ok -fcase-of-case -fdo-case-elim -fcase-merge -fdo-lambda-eta-expansion -freuse-con -flet-to-case $Oopt_PedanticBottoms $Oopt_MaxSimplifierIterations $Oopt_ShowSimplifierProgress ]" ),
807 # Final clean-up simplification:
811 $Oopt_MaxSimplifierIterations,
812 # No -finline-phase: allow all Ids to be inlined now
819 $Oopt_FinalStgProfilingMassage,
825 # SPECIAL FLAGS for -O2
827 '-fupdate-analysis', # virtually useless; relegated to -O2
834 Sort out what we're going to do about optimising. First, the @hsc@
835 flags and regular @cc@ flags to worry about:
837 if ( $OptLevel <= 0 ) {
839 # for this level, we tell the parser -fignore-interface-pragmas
840 push(@HsC_flags, '-fignore-interface-pragmas');
841 # and tell the compiler not to produce them
842 push(@HsC_flags, '-fomit-interface-pragmas');
844 &add_Hsc_flags( @HsC_minusNoO_flags );
845 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
847 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
849 &add_Hsc_flags( @HsC_minusO_flags );
850 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
851 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
852 # but it *is* useful in compiling the garbage collector.
854 } else { # -Ofile, then...
856 &add_Hsc_flags( @HsC_minusO3_flags );
857 push(@HsC_flags, $Oopt_FinalStgProfilingMassage) if $Oopt_FinalStgProfilingMassage;
859 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
862 } # setupOptimiseFlags
866 %************************************************************************
868 \subsection{Check for consistency, etc.}
870 %************************************************************************
872 Sort out @$BuildTag@, @$PROFing@, @$PARing@,
873 @$GRANing@, @$TICKYing@, @UNREGing@:
875 sub setupBuildFlags {
877 # PROFILING stuff after argv mangling:
879 # add -auto sccs even if not profiling !
880 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
883 push(@HsC_flags, $PROFauto) if $PROFauto;
884 push(@HsC_flags, $PROFcaf) if $PROFcaf;
885 push(@HsC_flags, $PROFdict) if $PROFdict;
887 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
889 # Ignore user sccs when auto annotating, but warn when doing so.
890 $PROFignore_scc = '-W' if $PROFauto;
892 #if ( $BuildTag ne '' ) {
893 # local($b) = $BuildDescr{$BuildTag};
894 # if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
895 # if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
896 # if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
898 # # ok to have a user-way profiling build
899 # # eval the profiling opts ... but leave user-way BuildTag
900 # if ($PROFing eq 'p') { &processArgs(split(' ', $SetupOpts{'_p'})); } # eval($EvaldSetupOpts{'_p'}); }
902 if ( $PROFing eq 'p' ) {
903 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
904 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
905 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
908 } elsif ( $PARing eq 'p' ) {
909 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
910 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
913 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
914 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
918 } elsif ( $SMPing eq 's') {
921 } elsif ( $GRANing eq 'g' ) {
922 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
925 } elsif ( $TICKYing eq 't' ) {
928 } elsif ( $UNREGing eq 'u' ) {
929 if ($GhcWithRegisterised eq 'YES') {
935 After the sanity checks, add flags to the necessary parts of the driver pipeline:
938 if ( $BuildTag ne '' ) { # something other than normal sequential...
940 local($Tag) = "${BuildTag}";
941 $Tag =~ s/_//; # move the underscore to the back
943 $HscOut = '-C='; # must go via C
944 &processArgs(split(' ', $SetupOpts{$BuildTag}));
945 # eval($EvaldSetupOpts{$BuildTag});
949 Decide what the consistency-checking options are in force for this run:
952 $HsC_consist_options = "${BuildTag},${DEBUGging}";
953 $Cc_consist_options = "${BuildTag},${DEBUGging}";
956 # Funny place to put it, but why not.
958 if ( $HiSuffix_prelude eq '' ) {
960 if ($CompilingPrelude) {
961 $HiSuffix_prelude = "$HiSuffix" if $CompilingPrelude;
963 local($Tag) = "${BuildTag}";
966 $Tag = "${Tag}_" if $Tag ne '';
967 $HiSuffix_prelude="${Tag}hi";
973 %************************************************************************
975 \subsection{Add on machine-specific C-compiler flags}
977 %************************************************************************
979 Shove on magical machine-specific options. We use \tr{unshift} to
980 stick them on the {\em front} of the arrays, so that ``later''
981 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
983 Note: a few ``always apply'' flags were set at the very beginning.
988 if ($TargetPlatform =~ /^alpha-/) {
989 unshift(@CcBoth_flags, ('-static'));
991 } elsif ($TargetPlatform =~ /^hppa/) {
992 unshift(@CcBoth_flags, ('-static'));
994 # We don't put in '-mlong-calls', because it's only
995 # needed for very big modules (sigh), and we don't want
996 # to hobble ourselves further on all the other modules
999 # [Dated comment (gcc-2.6.x?), -mlong-calls is no longer
1000 # a supported gcc HPPA flag]
1001 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
1002 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
1003 # (very nice, but too bad the HP /usr/include files don't agree.)
1005 } elsif ($TargetPlatform =~ /^i386-/) {
1006 # -fno-defer-pop : basically the same game as for m68k
1008 # -fomit-frame-pointer : *must* in .hc files; because we're stealing
1009 # the fp (%ebp) for our register maps.
1011 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1012 unshift(@CcRegd_flags_hc, '-fomit-frame-pointer');
1013 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1015 unshift(@CcBoth_flags, ('-DDONT_WANT_WIN32_DLL_SUPPORT')) if ($Static);
1017 } elsif ($TargetPlatform =~ /^m68k-/) {
1018 # -fno-defer-pop : for the .hc files, we want all the pushing/
1019 # popping of args to routines to be explicit; if we let things
1020 # be deferred 'til after an STGJUMP, imminent death is certain!
1022 # -fomit-frame-pointer : *don't*
1023 # It's better to have a6 completely tied up being a frame pointer
1024 # rather than let GCC pick random things to do with it.
1025 # (If we want to steal a6, then we would try to do things
1026 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1028 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1029 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1030 # maybe gives reg alloc a better time
1031 # also: -fno-defer-pop is not sufficiently well-behaved without it
1033 } elsif ($TargetPlatform =~ /^mips-/) {
1034 unshift(@CcBoth_flags, ('-static'));
1036 } elsif ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1037 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1038 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1039 } elsif ($TargetPlatform =~ /^sparc-/) {
1041 } # end of setupMachOpts
1044 %************************************************************************
1046 \subsection{Set up for warnings}
1048 %************************************************************************
1050 Several warnings are turned on by default. These are supposed to be
1051 the 'I'm pretty sure you've made a mistake here' kind of warnings.
1052 The rest are turned on by the -W and -Wall options, or individually
1053 via their -fwarn and -fno-warn flags.
1056 sub setupWarningFlags {
1057 &add_Hsc_flags( @StandardWarnings );
1061 Same unshifting magic, but for special linker flags.
1063 The configure script determines whether the object file symbol tables
1064 have a leading underscore, and sets @LeadingUnderscore@ accordingly.
1065 (The driver script `sees' the setting of the @LeadingUnderscore@
1066 by having the Makefile prepend it).
1070 local($uscore) = ( ${LeadingUnderscore} eq 'YES' ) ? '_' : '';
1073 (($Ld_main) ? ( '-u', "${uscore}Main_" . $Ld_main . '_closure' ) : ()));
1075 # things that are referenced by the RTS - make sure that we pull 'em in
1077 ( '-u', "${uscore}PrelBase_Izh_static_info"
1078 ,'-u', "${uscore}PrelBase_Czh_static_info"
1079 ,'-u', "${uscore}PrelFloat_Fzh_static_info"
1080 ,'-u', "${uscore}PrelFloat_Dzh_static_info"
1081 ,'-u', "${uscore}PrelAddr_Azh_static_info"
1082 ,'-u', "${uscore}PrelAddr_Wzh_static_info"
1083 ,'-u', "${uscore}PrelAddr_I64zh_static_info"
1084 ,'-u', "${uscore}PrelAddr_W64zh_static_info"
1085 ,'-u', "${uscore}PrelStable_StablePtr_static_info"
1086 ,'-u', "${uscore}PrelBase_Izh_con_info"
1087 ,'-u', "${uscore}PrelBase_Czh_con_info"
1088 ,'-u', "${uscore}PrelFloat_Fzh_con_info"
1089 ,'-u', "${uscore}PrelFloat_Dzh_con_info"
1090 ,'-u', "${uscore}PrelAddr_Azh_con_info"
1091 ,'-u', "${uscore}PrelAddr_Wzh_con_info"
1092 ,'-u', "${uscore}PrelAddr_I64zh_con_info"
1093 ,'-u', "${uscore}PrelAddr_W64zh_con_info"
1094 ,'-u', "${uscore}PrelStable_StablePtr_con_info"
1095 ,'-u', "${uscore}PrelBase_False_static_closure"
1096 ,'-u', "${uscore}PrelBase_True_static_closure"
1097 ,'-u', "${uscore}PrelPack_unpackCString_closure"
1098 ,'-u', "${uscore}PrelException_stackOverflow_closure"
1099 ,'-u', "${uscore}PrelException_heapOverflow_closure"
1100 ,'-u', "${uscore}PrelException_NonTermination_static_closure"
1102 if (!$NoHaskellMain) {
1103 unshift (@Ld_flags,'-u', "${uscore}PrelMain_mainIO_closure");
1105 if ($PROFing ne '') {
1106 unshift (@Ld_flags,'-u', "${uscore}_regPrelude");
1108 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1109 # sometimes we have lots of toc entries...
1110 # unshift(@Ld_flags, ('-Xlinker -bbigtoc -Xlinker -bnoquiet'));
1111 unshift(@Ld_flags, ('-Xlinker -bbigtoc'));
1115 } # end of setupLinkOpts
1119 %************************************************************************
1121 \subsection{Set up include paths and system-library enslurpment}
1123 %************************************************************************
1125 Now that we know what garbage-collector, etc., are required, we can
1126 finalise our list of libraries to slurp through, and generally Get
1131 # default includes must be added AFTER option processing
1132 if ( ! $INSTALLING ) {
1133 push (@Include_dir, "$TopPwd/${CURRENT_DIR}/${GHC_INCLUDE_DIR}");
1135 push (@Include_dir, "$InstLibDirGhc/includes");
1136 push (@Include_dir, "$InstLibDirGhc/includes");
1138 } # end of setupIncPaths
1143 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1146 foreach $f (@SysLibrary) {
1147 next if $f =~ /_cbits/;
1148 $f .= $BuildTag if $f =~ /^-lHS/;
1151 # Push library HSrts, plus boring clib bit
1152 push(@SysLibrary, "-lHSrts${BuildTag}");
1155 # RTS compiled with cygwin32, uses the WinMM API
1156 # to implement the itimers, since cygwin.dll does not
1157 # support it. Only reqd. for `ways' that use itimers.
1159 push(@SysLibrary, '-lwinmm') if ($TargetPlatform =~ /-(mingw32|cygwin32)$/);
1160 # Note: currently only tested with mingw, may cause conflicts when linking
1162 push(@SysLibrary, '-lwsock32') if ($TargetPlatform =~ /-(mingw32|cygwin32)$/);
1164 # Push the pvm libraries
1165 if ($BuildTag eq '_mp') {
1166 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1167 push(@SysLibrary, "-L$pvmlib", '-lgpvm3', '-lpvm3');
1168 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1169 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1170 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1171 push(@SysLibrary, '-lsocket', '-lnsl');
1175 # Push the GNU multi-precision arith lib; and the math library
1177 # If this machine has GMP already installed, then we'll get the installed
1178 # lib here, because presumably the one in the tree won't have been built.
1180 if ($LibGmp eq 'not-installed') {
1181 push(@SysLibrary, "-lgmp");
1183 push(@SysLibrary, "-l$LibGmp");
1186 push(@SysLibrary, '-lm') if !( $TargetPlatform =~ /^.*(cygwin32|mingw32)$/ );
1189 %************************************************************************
1191 \subsection{Check that this system was built to do what we are asking}
1193 %************************************************************************
1195 Before continuing we check that the appropriate build is available.
1198 #die "$Pgm: no BuildAvail?? $BuildTag\n" if $BuildDescr{$BuildTag} eq '' ; # sanity
1200 if ( $BuildDescr{$BuildTag} eq '' ) {
1201 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1202 "' \"build\" is not available with your GHC setup.\n";
1203 print STDERR "(It was not configured for it at your site.)\n";
1204 print STDERR $ShortUsage;
1208 } # end of setupSyslibs
1212 %************************************************************************
1214 \subsection{Final miscellaneous setup bits before we start going}
1216 %************************************************************************
1218 Record largest specific heapsize, if any.
1220 sub setupHeapStackSize {
1221 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1222 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1223 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1224 push(@HsC_rts_flags, "-K$Specific_stk_size");
1228 If no input or link files seen, then we let 'em feed in stdin; this is
1229 mainly for debugging.
1233 if ($#Input_file < 0 && $#Link_file < 0) {
1234 @Input_file = ( '-' );
1236 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1237 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n" if -t;
1238 while (<STDIN>) { print INF $_; }
1239 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1244 Tell the world who we are, if they asked.
1246 print STDERR "${ProjectName}, version ${ProjectVersion}\n" if $Verbose;
1249 %************************************************************************
1251 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1253 %************************************************************************
1255 Process the input files; don't continue with linking if there are
1256 problems (global variable @$Status@ non-zero).
1258 foreach $ifile (@Input_file) {
1259 &ProcessInputFile($ifile);
1262 # don't link if there were errors...
1263 if ( $Status > 0 ) {
1264 print STDERR $ShortUsage;
1269 # Link if appropriate.
1270 &runLinker() if $Do_lnkr;
1272 # that... that's all, folks!
1274 exit $Status; # will still be 0 if all went well
1277 %************************************************************************
1279 \section[Driver-do-one-file]{How to process a single input file}
1281 %************************************************************************
1284 sub ProcessInputFile {
1285 local($ifile) = @_; # input file name
1286 local($ifile_root); # root of or basename of input file
1287 local($ofile_target); # ultimate output file we hope to produce
1288 # from input file (need to know for recomp
1289 # checking purposes)
1290 local($hifile_target);# ditto (but .hi file)
1291 local($ofile_c_stub_target);
1292 local($ofile_h_stub_target);
1295 Handle the weirdity of input from stdin.
1297 if ($ifile ne '-') {
1298 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1299 $ofile_target = # may be reset later...
1300 ($Specific_output_file ne '' && ! $Do_lnkr)
1301 ? $Specific_output_file
1302 : &odir_ify($ifile_root, 'o');
1303 $hifile_target= ($Specific_hi_file ne '')
1305 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1306 # NB: may change if $ifile_root isn't module name (??)
1307 ($ofile_c_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.c/;
1308 ($ofile_h_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.h/;
1310 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1311 $ifile_root = '_stdin';
1312 $ofile_target = '_stdout'; # gratuitous?
1313 $hifile_target= '_stdout'; # ditto?
1317 We need to decide what phases of the compilation system we will run
1318 over this file. The defaults are the ones established when processing
1319 flags. (That established what the last phase run for all files is.)
1321 We do the pre-recompilation-checker phases here; the rest later.
1325 Look at the suffix and decide what initial phases of compilation may
1326 be dropped off for this file. Also the rather boring business of
1327 which files are coming-in/going-out.
1329 Again, we'll do the post-recompilation-checker parts of this later.
1331 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1332 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1335 # names of the files to stuff between phases
1336 # defaults are temporaries
1337 local($in_lit2pgm) = $ifile;
1338 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1339 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1340 local($hsc_hi) = "$Tmp_prefix.hi";
1341 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1342 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1343 local($as_out) = $ofile_target;
1345 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
1347 # OK, let's strip off some literate junk..
1349 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
1351 $lit2pgm_hscpp = $ifile;
1357 # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas
1358 &check_for_source_options($lit2pgm_hscpp,$ifile);
1360 # Options found in the source file take a back seat, i.e., we scan
1361 # them first. Only process the command line again if source file
1362 # contained anything of interest *or* there's more than one
1363 # input file (we have to reset the options).
1365 if ( $#Input_file >= 0 || $#File_options >= 0) {
1366 #@File_options = (@File_options, @Cmd_opts);
1368 # Now process the command line
1369 &initDriverGlobals();
1370 &processArgs((@File_options,@Cmd_opts));
1371 print STDERR "\nEffective command line: " .
1372 join(' ',(@File_options,@Cmd_opts)) . "\n" if $Verbose;
1375 # Having got the effective command line scanned, set up
1376 # the various options in prep for some real work.
1378 # check the sanity of the BuildTag we're about to use,
1379 # and if needs be, add some more flags and setup to
1380 # the different phases.
1383 &setupOptimiseFlags();
1386 &setupWarningFlags();
1387 &setupHeapStackSize();
1390 # These two variables need to be set after the
1391 # command-line has been processed and the build options
1392 # have be seen set up. This is because command-line options
1393 # can control whether to compile vias C or not.
1395 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1397 : ( ($HscOut eq '-C=') ? 1 : 0 );
1398 local($do_as) = $Do_as;
1399 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1400 local($hsc_out_c_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.c" : "";
1401 local($hsc_out_h_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.h" : "";
1403 if ($Only_preprocess_hc) { # stop after having run $Cc -E
1406 if ($Only_preprocess_C) { # stop after having run $hscpp
1407 $do_hsc=0; $do_cc = 0; $do_as=0;
1408 } elsif ($ifile =~ /.lhs$/ || $ifile =~ /.hs$/ ) {
1410 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
1411 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1413 $hsc_out_c_stub = '';
1414 $hsc_out_h_stub = '';
1415 } elsif ($ifile =~ /\.c$/) {
1416 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1417 $hsc_out = $ifile; $is_hc_file = 0;
1418 $hsc_out_c_stub = '';
1419 $hsc_out_h_stub = '';
1420 } elsif ($ifile =~ /\.[sS]$/) {
1421 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
1423 } else { # don't know what it is, but nothing to do herein...
1424 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
1427 # hack to avoid running hscpp
1428 $HsCpp = $Cat if ! $Cpp_flag_set;
1430 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) if $do_hscpp;
1434 We now think about whether to run hsc/cc or not (when hsc produces .s
1435 stuff, it effectively takes the place of both phases).
1436 To get the output file name right: for each phase that we are {\em
1437 not} going to run, set its input (i.e., the output of its preceding
1438 phase) to @"$ifile_root.<suffix>"@.
1441 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
1444 # Warning issued if -keep-hc-file-too is used without
1445 # -fvia-C (or the equivalent)
1447 if ( $HscOut ne '-C=' && $Keep_hc_file_too ) {
1448 print STDERR "$Pgm: warning: Native code generator to be used, -keep-hc-file-too will be ignored\n";
1451 if (! $do_cc && ! $do_as) { # stopping after hsc
1452 $hsc_out = ($Specific_output_file ne '')
1453 ? $Specific_output_file
1454 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
1456 $ofile_target = $hsc_out; # reset
1459 if (! $do_as) { # stopping after gcc (or hsc)
1460 $cc_as = ($Specific_output_file ne '')
1461 ? $Specific_output_file
1462 : &odir_ify($ifile_root, ( $Only_preprocess_hc ) ? 'i' : 's');
1464 $ofile_target = $cc_as; # reset
1470 Now the Haskell compiler, C compiler, and assembler
1474 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
1475 $ofile_target, $hifile_target,
1476 $going_interactive);
1479 if (-f $hsc_out_h_stub) {
1480 &run_something("cp $hsc_out_h_stub $ofile_h_stub_target", 'Copy foreign export header file');
1483 if (-f $hsc_out_c_stub) {
1484 &run_something("rm -f $ofile_c_stub_target && echo '#include \"${ofile_h_stub_target}\"' > $ofile_c_stub_target && cat $hsc_out_c_stub >> $ofile_c_stub_target", 'Copy foreign export C stubs');
1485 local ($hsc_out_s_stub);
1486 local ($hsc_out_o_stub);
1487 ($ofile_s_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$/\.s/;
1488 ($ofile_o_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$//;
1490 $ofile_o_stub_target = &osuf_ify($ofile_o_stub_target, "o");
1492 &runGcc (0, $ofile_c_stub_target, $ofile_s_stub_target);
1493 &runAs ($ofile_o_stub_target, $ofile_s_stub_target);
1496 # Bring the C stub protos into scope when compiling the .hc file.
1498 push (@CcInjects, "#include \"${hsc_out_h_stub}\"\n");
1499 # Hack - ensure that the stub .h file is included in the OPTIONS section
1500 # if the .hc file is saved.
1501 push (@File_options, "-#include \"${ofile_h_stub_target}\"\n");
1506 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
1507 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root) if ! $Only_preprocess_hc;
1510 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
1512 # save a copy of the .s file..
1513 &saveIntermediate($ifile_root , "s" , $cc_as) if ($do_as && $Keep_s_file_too);
1514 &runAs($as_out, $ifile_root) if $do_as;
1517 Finally, decide what to queue up for linker input.
1519 # tentatively assume we will eventually produce linker input:
1520 push(@Link_file, &odir_ify($ifile_root, 'o'));
1522 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
1524 if ( $ifile !~ /\.(lhs|hs|hc|c|s|a|S)$/ && $ifile !~ /_hc$/ ) {
1525 # There's sometimes confusion regarding .hi files; users
1526 # supplying them on the command line.
1527 if ( $ifile =~ /\.hi$/ ) {
1528 print STDERR "$Pgm: warning: found `$ifile' on command line; interface files should not be supplied here - ignoring it.\n";
1530 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n";
1532 # oops; we tentatively pushed the wrong thing; fix & do the right thing
1533 pop(@Link_file); push(@Link_file, $ifile);
1537 } # end of ProcessInputFile
1540 %************************************************************************
1542 \section[Driver-run-phases]{Routines to run the various phases}
1544 %************************************************************************
1548 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
1552 # Only add #line pragma if we're going to need it.
1553 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && " if ($Cpp_flag_set);
1554 $to_do .= "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
1556 push(@Files_to_tidy, $lit2pgm_hscpp );
1558 &run_something($to_do, 'literate pre-processor');
1564 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
1568 # Strictly speaking, echoing of the following line pragma is only required
1569 # on non-delit'ed input, as we've already added it during de-lit. However,
1570 # hscpp will then add a {-# LINE 1 "$lit2pgm_hsc" -} to the top of the file,
1571 # which is not very informative (but harmless). Hence, we uniformly have
1572 # {-# LINE 1 "$in_lit2pgm" #-} as the first line to all cpp'ed hsc input.
1574 $to_do = "echo '{-# LINE 1 \"$in_lit2pgm\" -}' > $hscpp_hsc && ";
1576 if ($HsCpp eq $Cat) {
1577 $to_do .= "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
1578 push(@Files_to_tidy, $hscpp_hsc );
1579 &run_something($to_do, 'Ineffective C pre-processor');
1581 local($includes) = '-I' . join(' -I',@Include_dir);
1582 $to_do .= "$HsCpp $Verbose @HsCpp_flags @HsSourceCppOpts $includes $lit2pgm_hscpp >> $hscpp_hsc";
1583 push(@Files_to_tidy, $hscpp_hsc );
1584 &run_something($to_do, 'Haskellised C pre-processor');
1587 if ( $Only_preprocess_C ) {
1588 $to_do = "$Cat $hscpp_hsc";
1589 &run_something($to_do, '');
1597 sub runHscAndProcessInterfaces {
1598 local($ifile, $hscpp_hsc, $ifile_root,
1599 $ofile_target, $hifile_target,
1600 $going_interactive) = @_;
1602 # $ifile is the original input file
1603 # $hscpp_hsc post-unlit, post-cpp, etc., input file
1604 # $ifile_root input filename minus suffix
1605 # $ofile_target the output file that we ultimately hope to produce
1606 # $hifile_target the .hi file ... (ditto)
1608 local($source_unchanged) = 1;
1610 # Check if the source file is up to date relative to the target; in
1611 # that case we say "source is unchanged" and let the compiler bail out
1612 # early if the import usage information allows it.
1614 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
1615 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
1617 # The informational messages below are now conditional on -v being set -- SOF
1618 if ( $ofile_target ne "_stdin.s" && ! -f $ofile_target ) {
1619 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n" if $Verbose;
1620 $source_unchanged = 0;
1623 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
1624 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
1626 if ( $hifile_target ne "_stdout" && ! -f $hifile_target ) {
1627 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n" if $Verbose;
1628 $source_unchanged = 0;
1631 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
1632 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
1634 if ( $ofile_target ne "_stdin.s" && $i_mtime > $o_mtime) {
1635 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n" if $Verbose;
1636 $source_unchanged = 0;
1639 # Tell the compiler which version we're using
1640 push(@HsC_flags, "-fhi-version=${ProjectVersionInt}");
1642 # So if source_unchanged is still "1", we pass on the good news to the compiler
1643 # The -recomp flag can disable this, forcing recompilation
1644 if ($Do_recomp_chkr && $source_unchanged) {
1645 push(@HsC_flags, '-fsource-unchanged');
1648 # Indicate whether we're static or not.
1649 # This will only ever
1650 push(@HsC_flags, '-static') if $Static;
1654 &runHsc($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive);
1656 # See if it bailed out early, saying nothing needed doing.
1657 # We work this out by seeing if it created an output .hi file
1659 if ( ! -f $hsc_hi && $ProduceHi !~ /-nohifile=/ ) {
1660 # Doesn't exist, so we bailed out early.
1661 # Tell the C compiler and assembler not to run
1662 $do_cc = 0; $do_as = 0;
1664 # Update dependency info, touch both object file and
1665 # interface file, so that the following invariant is
1668 # a dependent module's interface file should after recompilation
1669 # checking be newer than the interface files of its imports.
1671 # That is, if module A's interface file changes, then module B
1672 # (which import from A) needs to be checked.
1673 # If A's change does not affect B, which causes the compiler to bail
1674 # out early, we still need to touch the interface file of B. The reason
1675 # for this is that B may export A's interface.
1677 &run_something("touch $ofile_target",
1678 "Touch $ofile_target, to propagate dependencies") if $HscOut ne '-N=';
1679 &run_something("touch $hifile_target",
1680 "Touch $hifile_target, to propagate dependencies") if $ProduceHi =~ /-nohifile=/ ;
1684 # Didn't bail out early (new .hi file) so we thunder on
1686 # If non-interactive, heave in the consistency info at the end
1687 # NB: pretty hackish (depends on how $output is set)
1688 if ( ! $going_interactive ) {
1689 if ( $HscOut eq '-C=' ) {
1690 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
1692 } elsif ( $HscOut eq '-S=' ) {
1693 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
1694 $consist =~ s/,/./g;
1695 $consist =~ s/\//./g;
1696 $consist =~ s/-/_/g;
1697 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
1698 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
1700 &run_something($to_do, 'Pin on Haskell consistency info');
1704 # Interface-handling is important enough to live off by itself
1705 if ( $ProduceHi !~ /-nohifile=/ ) { # If we've produced one, process it.
1706 require('ghc-iface.prl') || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
1707 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
1709 # if we're going to split up object files,
1710 # we inject split markers into the .hc file now
1711 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
1712 &inject_split_markers ( $hsc_out );
1715 # save a copy of the .hc file, even if we are carrying on...
1716 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
1717 &saveIntermediate($ifile_root , "hc" , $hsc_out);
1727 local($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive) = @_;
1729 &makeHiMap() unless $HiMapDone;
1730 push(@HsC_flags, "\"-himap=$HiIncludeString\"");
1731 push(@HsC_flags, "\"-himap-sep=${SplitMarker}\"");
1733 # here, we may produce .hc/.s and/or .hi files
1734 local($output) = '';
1735 #@Files_to_tidy = ();
1737 if ( $going_interactive ) {
1738 # don't need .hi unless we're going to show it on stdout:
1739 $ProduceHi = '-nohifile=' if ! ($HiOnStdout || $Specific_hi_file ne '' );
1740 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
1743 # set up for producing output/.hi; note that flag twiddling
1744 # may mean that nothing will actually be produced:
1745 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out -F=$hsc_out_c_stub -FH=$hsc_out_h_stub";
1746 push(@Files_to_tidy, $hsc_hi, $hsc_out, $hsc_out_c_stub, $hsc_out_h_stub );
1748 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
1749 if ( $CollectingGCstats ) {
1750 push(@HsC_rts_flags, "-S$ifile_root.stat");
1751 push(@Files_to_tidy, "$ifile_root.stat");
1754 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
1755 # emit nofibbish time/bytes-alloc stats to stderr;
1756 # see later .stat file post-processing
1757 print STDERR "warning: both -Rgc-stats and -Rghc-timing used, -Rghc-timing wins." if $CollectingGCstats;
1758 push(@HsC_rts_flags, "-S$Tmp_prefix.stat");
1759 push(@Files_to_tidy, "$Tmp_prefix.stat");
1763 if ($Specific_dump_file ne '') {
1764 $dump = "2>> $Specific_dump_file";
1765 $Using_dump_file = 1;
1769 # Win32 only: If the command processor used by system()
1770 # exec()s the application as an ordinary Win32 executable,
1771 # we're in trouble here, since the command line is likely
1772 # to be > 255 chars long. To work around this situation,
1773 # $HsC also understands `at-files', i.e., `@file' on the
1774 # command line will cause $HsC to add the contents of `file'
1775 # to the command line.
1777 # [ Note: support for `at-files' is not compiled in by default ]
1778 $cmd_line_opts_via_at_file=0;
1779 if ($cmd_line_opts_via_at_file) {
1781 local($to_do_opts) = "$Tmp_prefix.opts";
1782 open(OPTS, "> $Tmp_prefix.opts") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.opts\n");
1783 print OPTS "$dump @HsC_flags $CoreLint $USPLint $StgLint $Verbose";
1785 $to_do = "$HsC $hscpp_hsc \@$Tmp_prefix.opts $output +RTS @HsC_rts_flags";
1789 $to_do = "$HsC $hscpp_hsc $dump @HsC_flags $CoreLint $USPLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
1791 &run_something($to_do, 'Haskell compiler');
1793 # finish business w/ nofibbish time/bytes-alloc stats
1794 &process_ghc_timings() if $CollectGhcTimings;
1798 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
1799 of (module-name, pathname) pairs, one per line, separated by a space.
1802 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1806 # collect in %HiMap; write later; also used elsewhere in driver
1808 local($mod, $path, $d, $e);
1810 # reset the global variables:
1812 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1814 foreach $d ( @Import_dir ) {
1815 if ($HiIncludeString) {
1816 $HiIncludeString = "$HiIncludeString${SplitMarker}${d}%.${HiSuffix}";
1818 $HiIncludeString = "$d%.${HiSuffix}";
1823 foreach $d ( @SysImport_dir ) {
1824 if ($HiIncludeString) {
1825 $HiIncludeString = "$HiIncludeString${SplitMarker}${d}%.${HiSuffix_prelude}";
1827 $HiIncludeString = "${d}%.${HiSuffix_prelude}";
1836 Invoke the 'linker' - either the standard linker or the one used to build
1842 local($libdirs) = '';
1844 # append last minute flags linker and consistency flags
1849 # glue them together:
1850 push(@UserLibrary_dir, @SysLibrary_dir);
1852 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1854 # for a linker, use an explicitly given one, or the going C compiler ...
1855 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1857 if ( ($Specific_output_file eq '') &&
1858 ($TargetPlatform eq 'i386-unknown-cygwin32') ) {
1859 $Specific_output_file = 'main.exe';
1860 print STDERR "Output file not specified, defaulting to \"main.exe\"\n";
1863 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1864 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1866 &prepareWin32DllLink(1);
1868 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $libdirs @UserLibrary @SysLibrary";
1869 &run_something($to_do, 'Linker');
1871 # finally, check the consistency info in the binary
1872 local($executable) = $Files_to_tidy[0];
1873 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1876 # dynamically load consistency-chking code; then do it.
1877 require('ghc-consist.prl')
1878 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1880 &chk_consistency_info ( $executable );
1883 # if PVM parallel stuff, we do truly weird things.
1884 # Essentially: (1) move the executable over to where PVM expects
1885 # to find it. (2) create a script in place of the executable
1886 # which will cause the program to be run, via SysMan.
1887 if ( $PARing eq 'p' ) {
1888 local($pvm_executable) = $executable;
1889 local($pvm_executable_base);
1891 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1892 local($pwd) = `pwd`;
1894 $pwd =~ s/^\/tmp_mnt//;
1895 $pvm_executable = "$pwd/$pvm_executable";
1898 $pvm_executable =~ s|/|=|g; # make /s into =s
1899 $pvm_executable_base = $pvm_executable;
1901 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1902 . "/$pvm_executable";
1904 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1906 # OK, now create the magic script for "$executable"
1907 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1908 print EXEC <<EOSCRIPT1;
1909 eval 'exec perl -S \$0 \${1+"\$@"}'
1910 if \$running_under_some_shell;
1911 # =!=!=!=!=!=!=!=!=!=!=!
1912 # This script is automatically generated: DO NOT EDIT!!!
1913 # Generated by Glasgow Haskell, version ${ProjectVersion}
1914 # ngoqvam choHbogh vaj' vIHoHnISbej !!!!
1916 \$pvm_executable = '$pvm_executable';
1917 \$pvm_executable_base = '$pvm_executable_base';
1918 \$SysMan = '$SysMan';
1921 print EXEC <<\EOSCRIPT2;
1922 # first, some magical shortcuts to run "commands" on the binary
1924 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1926 system("$cmd $pvm_executable");
1930 # OK, really run it; process the args first
1931 $ENV{'PE'} = $pvm_executable_base;
1933 $nprocessors = 2; # the default
1937 # ToDo: handle --RTS
1938 args: while ($a = shift(@ARGV)) {
1939 if ( $a eq '+RTS' ) {
1941 } elsif ( $a eq '-RTS' ) {
1944 if ( $a eq '-d' && $in_RTS_args ) {
1946 } elsif ( $a =~ /^-qN(\d+)/ && $in_RTS_args ) {
1948 } elsif ( $a =~ /^-qp(\d+)/ && $in_RTS_args ) {
1951 push(@nonPVM_args, $a);
1955 local($return_val) = 0;
1956 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
1958 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
1961 close(EXEC) || die "Failed closing $executable\n";
1962 chmod 0755, $executable;
1970 # append last minute flags linker and consistency flags
1975 # glue them together:
1976 push(@UserLibrary_dir, @SysLibrary_dir);
1978 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1980 &prepareWin32DllLink(0);
1982 local ($bld_dll) = "dllwrap";
1984 local ($output) = ($Specific_output_file ne '') ? "$Specific_output_file" : 'HSdll.dll';
1985 local ($output_dir);
1986 local ($output_file);
1987 local ($output_lib, $output_def);
1989 ($output_dir = $output) =~ s|(.*/)[^/]+$|$1|;
1990 $output_dir = "" if ($output_dir eq $output);
1991 ($output_file = $output) =~ s|.*/([^/]+)$|$1|;
1993 ($output_lib = $output_file) =~ s|(.+)\.[^\.]*$|${output_dir}lib$1_imp.a|;
1994 ($output_def = $output_file) =~ s|(.+)\.[^\.]*$|${output_dir}$1.def|;
1996 push (@Dll_flags, "-mno-cygwin --target=i386-mingw32") if ($TargetPlatform =~ /^.*mingw32$/);
1997 push (@Dll_flags, "--output-lib $output_lib");
1998 # If the "--def " option hasn't been supplied, assume everything
1999 # is going to be exported via the DLL.."
2000 if (!grep(/--def/, @Dll_flags)) {
2001 push (@Dll_flags, "--export-all --output-def $output_def");
2004 local($to_do) = "$bld_dll @Dll_flags -o $output @Link_file $libdirs @UserLibrary @SysLibrary";
2005 # Make sure the user sees this piece of magic.
2006 print STDERR "$to_do\n" if (!$Verbose);
2007 &run_something($to_do, 'DLL creator');
2010 sub prepareWin32DllLink
2012 local($linking_main) = @_;
2015 # Win32 DLLs - link with import libraries, not the real archives.
2017 if ( $TargetPlatform =~ /-mingw32$/ ) {
2020 # If the libraries have the form libHSfoo.a, we
2021 # transform that into libHSfoo_imp.a - the import
2022 # library of the DLL.
2024 foreach $a ( @SysLibrary ) {
2025 $a = "${a}_imp" if ($a =~ /^-lHS/);
2027 foreach $a ( @UserLibrary ) {
2028 $a = "${a}_imp" if ($a =~ /^-lHS/);
2030 push(@Link_file, ( $INSTALLING ) ? "$InstLibDirGhc/Main.dll_o"
2031 : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/Main.dll_o") if $linking_main;
2032 push(@Link_file, ( $INSTALLING ) ? "$InstLibDirGhc/PrelMain.dll_o"
2033 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std/PrelMain.dll_o") if $linking_main;
2035 push(@Ld_flags, "-mno-cygwin");
2041 %************************************************************************
2043 \section[Driver-misc-utils]{Miscellaneous utilities}
2045 %************************************************************************
2047 %************************************************************************
2049 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
2051 %************************************************************************
2055 local($ofile,$def_suffix) = @_;
2057 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
2061 local($orig_file, $def_suffix) = @_;
2062 if ($Specific_output_dir eq '') { # do nothing
2063 &osuf_ify($orig_file, $def_suffix);
2065 local ($orig_file_only);
2066 ($orig_file_only = $orig_file) =~ s|.*/||;
2067 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
2074 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
2076 local($includes) = '-I' . join(' -I', @Include_dir);
2079 local($c_flags) = "@CcBoth_flags";
2080 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2082 $c_flags .= " -mno-cygwin" if ( $TargetPlatform =~ /-mingw32$/ );
2084 # "input" files to use that are not in some weird directory;
2085 # to help C compilers grok .hc files [ToDo: de-hackify]
2086 local($cc_help) = "ghc$$.c";
2087 local($cc_help_s) = "ghc$$.s";
2090 $s_output = (($is_hc_file && $DoAsmMangling) || $TargetPlatform =~ /^(powerpc|rs6000|hppa)/) ? $cc_as_o : $cc_as;
2091 $c_flags .= " @CcRegd_flags";
2092 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2094 # C compiler won't like the .hc extension. So we create
2095 # a tmp .c file which #include's the needful.
2096 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2097 if ( $is_hc_file ) {
2101 # user may have asked for #includes to be injected...
2102 print TMP @CcInjects if $#CcInjects >= 0;
2104 # Straight .c files may want to know that they're being used
2105 # with a particular version of GHC, so we define __GLASGOW_HASKELL__ for their benefit.
2106 print TMP "#define __GLASGOW_HASKELL__ ${ProjectVersionInt}\n";
2108 # heave in the consistency info
2109 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2111 print TMP "#include \"$hsc_out\"\n";
2112 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2114 # Don't redirect stderr into intermediate file if slamming output onto stdout (e.g., with -E)
2115 local($fuse_stderr) = "2>&1" if ! $Only_preprocess_hc;
2116 local($to_do) = "$cc $Verbose $ddebug_flag $c_flags @Cpp_define $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 )";
2118 if ( $Only_preprocess_hc ) { # HACK ALERT!
2119 $to_do =~ s/ -S\b//g;
2121 push(@Files_to_tidy, $cc_help, $cc_help_s, $s_output );
2122 $PostprocessCcOutput = 1 if ! $Only_preprocess_hc; # hack, dear hack...
2123 &run_something($to_do, 'C compiler');
2124 $PostprocessCcOutput = 0;
2125 if ( $Only_preprocess_hc ) {
2126 system("$Cat $Tmp_prefix.ccout");
2128 unlink($cc_help, $cc_help_s);
2134 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2136 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2138 if ($is_hc_file && $DoAsmMangling) {
2139 # dynamically load assembler-fiddling code, which we are about to use:
2140 require('ghc-asm.prl')
2141 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2142 # post-process the assembler [.hc files only]
2143 &mangle_asm($cc_as_o, $cc_as);
2145 } elsif ($TargetPlatform =~ /^hppa/) {
2146 # minor mangling of non-threaded files for hp-pa only
2147 require('ghc-asm.prl')
2148 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2149 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2151 } elsif ($TargetPlatform =~ /^powerpc|^rs6000/) {
2152 # minor mangling of non-threaded files for powerpcs and rs6000s
2153 require('ghc-asm.prl')
2154 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-powerpc.prl!\n");
2155 &mini_mangle_asm_powerpc($cc_as_o, $cc_as);
2158 # save a copy of the .s file, even if we are carrying on...
2159 #if ($do_as && $Keep_s_file_too) {
2160 # &saveIntermediate($ifile_root , "s" , $cc_as);
2167 local($as_out, $ifile_root) = @_;
2169 local($asmblr) = ( $As ) ? $As : $CcRegd;
2171 # need to add the -I flags in case the file is going through cpp (.S files)
2172 local($includes) = '-I' . join(' -I', @Include_dir);
2174 if ( ! $SplitObjFiles || $ifile_root =~ /_stub\.s$/ ) {
2175 local($to_do) = "$asmblr -o $as_out -c @As_flags $includes $cc_as";
2176 push(@Files_to_tidy, $as_out );
2177 &run_something($to_do, 'Unix assembler');
2179 } else { # more complicated split-ification...
2181 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2183 # If -odir is used, great, just pin it in front of the
2184 # generated split file names. If it hasn't been set, we
2185 # snatch it from the ifile_root.
2189 if ( $Specific_output_dir eq '' ) {
2190 $Specific_output_dir = ${ifile_root};
2193 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2194 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2195 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2196 push(@Files_to_tidy, $split_out );
2198 &run_something($to_do, 'Unix assembler');
2204 %************************************************************************
2206 \subsection[Driver-run-something]{@run_something@: Run a phase}
2208 %************************************************************************
2212 local($str_to_do, $tidy_name) = @_;
2214 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2215 print STDERR "$str_to_do\n" if $Verbose;
2217 if ($Using_dump_file) {
2218 open(DUMP, ">> $Specific_dump_file")
2219 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2220 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2222 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2225 local($return_val) = 0;
2227 if ( length($str_to_do) > 4000) {
2228 # 4000 - on the random side, just like the *real* ARG_MAX
2231 # With some shells, command lines of this length may
2232 # very well cause trouble. To safeguard against this, we squirrel the
2233 # command into a file and exec that.
2234 local ($sh) = $ENV{'REAL_SHELL'};
2235 print STDERR "Backup plan A: saving cmd line in ${Tmp_prefix}.sh and executing that with $sh\n" if $Verbose;
2236 open (TEMP, "> ${Tmp_prefix}.sh") ||
2237 &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.sh'\n");
2238 print TEMP "$Time $str_to_do\n";
2240 &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.sh'\n");
2241 system("$sh $Tmp_prefix.sh");
2244 unlink "${Tmp_prefix}.sh";
2246 system("$Time $str_to_do");
2250 if ( $PostprocessCcOutput ) { # hack, continued
2251 open(CCOUT, "< $Tmp_prefix.ccout")
2252 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2254 next if /call-clobbered/;
2255 next if /control reaches end/;
2256 next if /from .*Stg\.h:/;
2257 next if /from ghc\d+.c:\d+:/;
2258 next if /: At top level:$/;
2259 next if /: In function \`.*\':$/;
2260 next if /\`ghc_cc_ID\' defined but not used/;
2263 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2266 local($signal_num) = $? & 127;
2267 local($dumped_core) = $? & 128;
2269 if ($signal_num != 0) {
2270 print STDERR "$tidy_name received signal $signal_num";
2271 if ($dumped_core != 0) {
2272 print STDERR " (core dumped)";
2277 if ($return_val != 0) {
2278 if ($Using_dump_file) {
2279 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2281 &tidy_up_and_die($return_val, '');
2284 $Using_dump_file = 0;
2288 %************************************************************************
2290 \subsection[Driver-ghc-timing]{Emit nofibbish GHC timings}
2292 %************************************************************************
2294 NB: nearly the same as in @runstdtest@ script.
2297 sub process_ghc_timings {
2298 local($StatsFile) = "$Tmp_prefix.stat";
2299 local($SysSpecificTiming) = 'ghc';
2301 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2302 local($max_live) = 0;
2303 local($tot_live) = 0; # for calculating residency stuff
2304 local($tot_samples) = 0;
2307 if (! /Gen:\s+0/ && ! /Minor/ && /^\s*\d+\s+\d+\s+(\d+)\s+\d+\.\d+/ ) {
2308 $max_live = $1 if $max_live < $1;
2312 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2314 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2315 $MaxResidency = $1; $ResidencySamples = $2;
2318 $GCs = $1 if /^\s*([0-9,]+) (collections? in generation 0|garbage collections? performed)/;
2320 if ( /^\s+([0-9]+)\s+Mb total memory/ ) {
2324 # The presence of -? in the following pattern is only there to
2325 # accommodate 0.29 && <= 2.05 RTS'
2326 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*-?(\d+\.\d\d)s elapsed\)/ ) {
2327 $InitTime = $1; $InitElapsed = $2;
2328 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2329 $MutTime = $1; $MutElapsed = $2;
2330 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2331 $GcTime = $1; $GcElapsed = $2;
2334 close(STATS) || die "Failed when closing $StatsFile\n";
2335 if ( $tot_samples > 0 ) {
2336 $ResidencySamples = $tot_samples;
2337 $MaxResidency = $max_live;
2338 $AvgResidency = int ($tot_live / $tot_samples) ;
2341 # warn about what we didn't find
2342 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2343 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2344 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2345 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2346 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2347 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2348 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2349 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2351 # things we didn't necessarily expect to find
2352 $MaxResidency = 0 unless defined($MaxResidency);
2353 $AvgResidency = 0 unless defined($AvgResidency);
2354 $ResidencySamples = 0 unless defined($ResidencySamples);
2357 $BytesAlloc =~ s/,//g;
2358 $MaxResidency =~ s/,//g;
2360 $InitTime =~ s/,//g;
2361 $InitElapsed =~ s/,//g;
2363 $MutElapsed =~ s/,//g;
2365 $GcElapsed =~ s/,//g;
2367 # print out what we found
2368 print STDERR "<<$SysSpecificTiming: ",
2369 "$BytesAlloc bytes, $GCs GCs, $AvgResidency/$MaxResidency avg/max bytes residency ($ResidencySamples samples), ${TotMem}M in use, $InitTime INIT ($InitElapsed elapsed), $MutTime MUT ($MutElapsed elapsed), $GcTime GC ($GcElapsed elapsed)",
2370 " :$SysSpecificTiming>>\n";
2377 %************************************************************************
2379 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2381 %************************************************************************
2385 local($to_do) = "\n$Rm $Tmp_prefix*";
2386 if ( $Tmp_prefix !~ /^\s*$/ ) {
2387 print STDERR "$to_do\n" if $Verbose;
2392 sub tidy_up_and_die {
2393 local($return_val, $msg) = @_;
2395 # delete any files to tidy
2396 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2397 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2401 exit (($return_val == 0) ? 0 : 1);
2405 %************************************************************************
2407 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2409 %************************************************************************
2411 Some command-line arguments take an argument, e.g.,
2412 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2413 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2414 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2416 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2417 gobble the second argument (and probably set the heapsize to something
2421 local(*Args, $option, $rest_of_arg) = @_;
2423 if ($rest_of_arg ne '') {
2424 return($rest_of_arg);
2425 } elsif ($#Args >= 0) {
2426 local($temp) = $Args[0]; shift(@Args);
2429 print STDERR "$Pgm: no argument following $option option\n";
2440 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2442 foreach $f ( @HsC_antiflags ) {
2443 return(0) if $flag eq $f;
2445 # foreach $f ( @HsC_flags ) {
2446 # return(0) if $flag eq $f;
2451 sub squashHscFlag { # pretty terrible
2455 foreach $f ( @HsC_flags ) {
2456 if ($flag eq $f) { $f = ''; }
2464 foreach $f ( @flags ) {
2465 push( @HsC_flags, $f ) if &isntAntiFlag($f);
2470 To add another system library, you'll need to augment the
2471 Supported_syslibs variable with name and info on your addition
2472 to the syslib family. The info bit consist of the following:
2474 - interface file directory
2475 see the misc or posix entry for how to distinguish
2476 between using installed and build tree directories.
2478 - directory location of archives
2480 - location of (way-independent) C support libs.
2481 not all libraries need this - if you don't, just
2482 give the empty string.
2483 - list of syslibs you depend on.
2485 - additional ghc command line flags that should be used.
2486 - additional C compiler command line flags that should be used.
2492 # Hash to keep track of
2493 %Syslibs_added = ();
2496 local($syslib) = @_;
2498 # Lifting this out of this sub brings it out of scope - why??
2499 %Supported_syslibs =
2501 [ # where to slurp interface files from
2503 ? "$InstLibDirGhc/imports/lang"
2504 : "$TopPwd/hslibs/lang:$TopPwd/hslibs/lang/monads"
2506 , # where to find the archive to use when linking
2509 : "$TopPwd/hslibs/lang"
2511 , # where to find the cbits archive to use when linking
2514 : "$TopPwd/hslibs/lang/cbits"
2516 , '' # Syslib dependencies
2517 , '' # extra ghc opts
2518 , '' # extra cc opts
2519 , '' # extra ld opts
2523 [ # where to slurp interface files from
2525 ? "$InstLibDirGhc/imports/concurrent"
2526 : "$TopPwd/hslibs/concurrent"
2528 , # where to find the archive to use when linking
2531 : "$TopPwd/hslibs/concurrent"
2533 , '' # where to find the cbits archive to use when linking
2534 , '' # Syslib dependencies
2535 , '' # extra ghc opts
2536 , '' # extra cc opts
2537 , '' # extra ld opts
2541 [ # where to slurp interface files from
2543 ? "$InstLibDirGhc/imports/data"
2544 : "$TopPwd/hslibs/data:$TopPwd/hslibs/data/edison:$TopPwd/hslibs/data/edison/Assoc:$TopPwd/hslibs/data/edison/Coll:$TopPwd/hslibs/data/edison/Seq"
2546 , # where to find the archive to use when linking
2549 : "$TopPwd/hslibs/data"
2551 , '' # where to find the cbits archive to use when linking
2552 , '' # Syslib dependencies
2553 , '' # extra ghc opts
2554 , '' # extra cc opts
2555 , '' # extra ld opts
2559 [ # where to slurp interface files from
2561 ? "$InstLibDirGhc/imports/net"
2562 : "$TopPwd/hslibs/net"
2564 , # where to find the archive to use when linking
2567 : "$TopPwd/hslibs/net"
2569 , # where to find the cbits archive to use when linking
2572 : "$TopPwd/hslibs/net/cbits"
2574 , 'lang text' # Syslib dependencies
2575 , '' # extra ghc opts
2576 , '' # extra cc opts
2577 , ( $TargetPlatform =~ /-solaris2$/ ? '-lnsl -lsocket' : '')
2581 [ # where to slurp interface files from
2583 ? "$InstLibDirGhc/imports/posix"
2584 : "$TopPwd/hslibs/posix"
2586 , # where to find the archive to use when linking
2589 : "$TopPwd/hslibs/posix"
2591 , # where to find the cbits archive to use when linking
2594 : "$TopPwd/hslibs/posix/cbits"
2596 , 'lang' # Syslib dependencies
2597 , '' # extra ghc opts
2598 , '' # extra cc opts
2599 , '' # extra ld opts
2603 [ # where to slurp interface files from
2605 ? "$InstLibDirGhc/imports/text"
2606 : "$TopPwd/hslibs/text:$TopPwd/hslibs/text/html"
2608 , # where to find the archive to use when linking
2611 : "$TopPwd/hslibs/text"
2613 , # where to find the cbits archive to use when linking
2616 : "$TopPwd/hslibs/text/cbits"
2618 , 'lang' # Syslib dependencies
2619 , '' # extra ghc opts
2620 , '' # extra cc opts
2621 , '' # extra ld opts
2625 [ # where to slurp interface files from
2627 ? "$InstLibDirGhc/imports/util"
2628 : "$TopPwd/hslibs/util"
2630 , # where to find the archive to use when linking
2633 : "$TopPwd/hslibs/util"
2635 , # where to find the cbits archive to use when linking
2638 : "$TopPwd/hslibs/util/cbits"
2640 , 'lang concurrent' # Syslib dependencies
2641 , '' # extra ghc opts
2642 , '' # extra cc opts
2643 , '' # extra ld opts
2647 [ # where to slurp interface files from
2649 ? "$InstLibDirGhc/imports/win32"
2650 : "$TopPwd/hslibs/win32/src"
2652 , # where to find the archive to use when linking
2655 : "$TopPwd/hslibs/win32/src"
2658 , 'lang' # Syslib dependencies
2659 , '' # extra ghc opts
2660 , '' # extra cc opts
2661 , '-luser32 -lgdi32' # extra ld opts
2665 [ # where to slurp interface files from
2667 ? "$InstLibDirGhc/imports/com"
2668 : "$TopPwd/hdirect/lib"
2670 , # where to find the archive to use when linking
2673 : "$TopPwd/hdirect/lib"
2676 , 'lang' # Syslib dependencies
2677 , '' # extra ghc opts
2678 , '' # extra cc opts
2679 , '-luser32 -lole32 -loleaut32 -ladvapi32'
2684 # check if it's supported..
2686 if ( !exists $Supported_syslibs{$syslib} ) {
2687 print STDERR "$Pgm: no such system library (-syslib): $syslib\n";
2692 # This check is here to avoid syslib loops from
2693 # spoiling the party. A side-effect of it is that
2694 # it disallows multiple mentions of a syslib on a command-line,
2695 # explicit *and* implicit ones (i.e., "-syslib lang -syslib misc"
2696 # is not equal to "-syslib lang -syslib misc -syslib lang",
2697 # which it needs to be)
2699 # Since our current collection of syslibs don't have any
2700 # loops, this test is disabled.
2702 # ToDo: loop avoidance scheme when the need arises
2704 #return if ( exists $Syslibs_added{$syslib} );
2706 $Syslibs_added{$syslib} = 1;
2708 local ($hi_dirs, $lib_dir, $lib_cbits_dir,
2709 $syslib_deps, $syslib_ghc_opts,
2710 $syslib_cc_opts, $syslib_ld_opts) = @{ $Supported_syslibs{$syslib} };
2712 foreach(split(':',$hi_dirs)) {
2713 unshift(@SysImport_dir, $_);
2715 push(@SysLibrary_dir, $lib_dir);
2716 push(@SysLibrary_dir, $lib_cbits_dir) if ( $lib_cbits_dir ne '');
2718 push(@SysLibrary, "-lHS$syslib");
2719 push(@SysLibrary, "-lHS${syslib}_cbits") if ( $lib_cbits_dir ne '');
2720 push(@SysLibrary, $syslib_ld_opts) if ($syslib_ld_opts ne '');
2722 # Add on any extra dependencies.
2723 foreach $lib (split(' ',$syslib_deps)) {
2729 Source files may have {-# OPTIONS ... #-} pragmas at the top, containing
2730 command line options we want to append to collection of commands specified
2731 directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell
2732 file for any such pragmas:
2735 sub check_for_source_options {
2736 local($file,$ifile) = @_;
2737 local($comment_start,$comment_end);
2739 if ($ifile =~ /\.hc$/ ||
2742 $ifile =~ /_s$/ ) { # `Real' C intermediate
2743 $comment_start = "/\\*";
2744 $comment_end = "\\*/";
2745 } else { # Assume it is a file containing Haskell source
2746 $comment_start = "{-#";
2747 $comment_end = "#-}";
2750 open(FILE,$file) || return(1); # No big loss
2753 if ( /^${comment_start} OPTIONS (.*)${comment_end}/ ) {
2754 # add the options found at the back of the command line.
2755 local(@entries) = split(/\s+/,$1);
2756 print STDERR "Found OPTIONS " . join(' ',@entries) . " in $file\n" if $Verbose;
2757 push(@File_options, @entries);
2759 elsif ( /^$/ ) { # ignore empty lines
2762 elsif ( /^#line.+$/ ) { # ignore comment lines (unused..ToDo: rm )
2765 elsif ( /^{-# LINE.+$/ ) { # ignore line pragmas
2768 else { # stop looking, something non-empty / not
2769 # ${comment_start} OPTIONS .. ${comment_end} encountered.
2770 close(FILE);return(0);
2779 We split the initial argv up into three arrays:
2785 the reason for doing so is to be able to deal
2786 with {-# OPTIONS #-} pragma in source files properly.
2792 arg: while($_ = $args[0]) {
2794 # sigh, we have to deal with these -option arg specially here.
2795 /^-(tmpdir|odir|ohi|o|isuf|osuf|hisuf|odump|syslib)$/ &&
2796 do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; };
2797 /^--?./ && do { push(@Cmd_opts, $_); next arg; };
2799 if (/\.([^_]+_)?[oa]$/) {
2800 push(@Link_file, $_);
2802 push(@Input_file, $_);
2805 # input files must exist:
2807 print STDERR "$Pgm: input file doesn't exist: $_\n";
2815 When saving an intermediate file (.hc or .s) away, we
2816 have to prefix any OPTIONS found in the original source file.
2819 sub saveIntermediate {
2820 local ($final,$suffix,$tmp)= @_ ;
2823 local ($new_suffix);
2825 # $final -- root of where to park ${final}.${suffix}
2826 # $tmp -- temporary file where hsc put the intermediate file.
2828 # HWL: use -odir for .hc and .s files, too
2829 if ( $Specific_output_dir ne '' ) {
2830 $final = "${Specific_output_dir}/${final}";
2832 # HWL: use the same suffix as for $Osuffix in generating intermediate file,
2833 # replacing o with hc or s, respectively.
2834 if ( $Osuffix ne '' ) {
2835 ($new_suffix = $Osuffix) =~ s/o$/hc/ if $suffix eq "hc";
2836 ($new_suffix = $Osuffix) =~ s/o$/s/ if $suffix eq "s";
2837 $suffix = $new_suffix;
2838 print stderr "HWL says: suffix for intermediate file is $suffix; ${final}.${suffix} overall\n" if $Verbose;
2841 # Delete the old file
2842 $to_do = "$Rm ${final}.${suffix}"; &run_something($to_do, "Removing old .${suffix} file");
2844 if ( $#File_options >= 0 ) { # OPTIONS found in Haskell source unit
2845 # Add OPTION comment to the top of the generated .${suffix} file
2846 open(TEMP, "> ${final}.${suffix}") || &tidy_up_and_die(1,"Can't open ${final}.${suffix}\n");
2847 print TEMP "/* OPTIONS " . join(' ',@File_options) . " */\n";
2849 print STDERR "Prepending OPTIONS: " . join(' ',@File_options) . " to ${final}.${suffix}\n" if $Verbose;
2851 $to_do = "$Cat $tmp >> ${final}.${suffix}";
2852 &run_something($to_do, "Saving copy of .${suffix} file");
2859 Command-line processor
2865 # can't use getopt(s); what we want is too complicated
2867 arg: while($_ = $Args[0]) {
2870 #---------- help -------------------------------------------------------
2871 if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; }
2873 #-----------version ----------------------------------------------------
2874 /^--version$/ && do { print STDERR "${ProjectName}, version ${ProjectVersion}\n"; exit $Status; };
2876 #---------- verbosity and such -----------------------------------------
2877 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
2879 #---------- what phases are to be run ----------------------------------
2880 /^-(no-)?recomp/ && do { $Do_recomp_chkr = ($1 eq '') ? 1 : 0; next arg; };
2882 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
2883 # change the global default:
2884 # we won't run cat; we'll run the real thing
2886 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
2888 # stop after generating C
2890 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
2891 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
2893 # leave out actual C generation (debugging) [also turns off interface gen]
2896 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
2897 # _do_ generate an interface; usually used as: -noC -hi
2898 /^-hi-with-(.*)$/ && do { $HiOnStdout = 1; $HiWith .= " $1" ; $ProduceHi = '-hifile='; next arg; };
2899 # limit ourselves to outputting a particular section.
2901 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
2902 # don't generate an interface (even if generating C)
2904 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
2905 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
2906 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
2907 /^-keep-hi-diffs$/ && do { $Keep_HiDiffs = 1; next arg; };
2909 # show/disable diffs if the interface file changes
2911 /^-E$/ && do { push(@CcBoth_flags, '-E');
2912 $Only_preprocess_C = 1;
2913 $Do_as = 0; $Do_lnkr = 0; next arg; };
2914 # stop after preprocessing C
2915 /^-M$/ && do { $Only_generate_deps = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2916 # only generate dependency information.
2917 /^--mk-dll$/ && do { $Only_generate_dll = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2918 # Build a Win32 DLL (where supported).
2919 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
2920 # stop after generating assembler
2922 /^-c$/ && do { $Do_lnkr = 0; next arg; };
2923 # stop after generating .o files
2925 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
2926 # don't do consistency-checking after a link
2927 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
2929 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', '');
2930 $Tmp_prefix = "$Tmp_prefix/ghc$$";
2931 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
2933 # use an alternate directory for temp files
2935 #---------- redirect output --------------------------------------------
2937 # -o <file>; applies to the last phase, whatever it is
2938 # "-o -" sends it to stdout
2939 # if <file> has a directory component, that dir must already exist
2941 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', '');
2943 # Hack, of the worst sort: don't do validation of
2944 # odir argument if you're using -M (dependency generation).
2946 if ( ! $Only_generate_deps && ! -d $Specific_output_dir) {
2947 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
2952 /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', '');
2953 if ($Specific_output_file ne '-'
2954 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
2955 local($dir_part) = $1;
2956 if (! -d $dir_part) {
2957 print STDERR "$Pgm: no such directory: $dir_part\n";
2963 # NB: -isuf not documented yet (because it doesn't work yet)
2964 /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', '');
2965 if ($Isuffix =~ /\./ ) {
2966 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
2971 /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', '');
2972 if ($Osuffix =~ /\./ ) {
2973 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
2978 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
2979 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', '');
2980 if ($Specific_hi_file ne '-'
2981 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
2982 local($dir_part) = $1;
2983 if (! -d $dir_part) {
2984 print STDERR "$Pgm: no such directory: $dir_part\n";
2988 $ProduceHi='-hifile=';
2991 # The suffix to use when looking for interface files
2992 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', '');
2993 if ($HiSuffix =~ /\./ ) {
2994 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
2998 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', '');
2999 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
3000 local($dir_part) = $1;
3001 if (! -d $dir_part) {
3002 print STDERR "$Pgm: no such directory: $dir_part\n";
3008 #-------------- scc & Profiling Stuff ----------------------------------
3010 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
3012 /^-auto-dicts$/ && do {
3013 $PROFdicts = '-fauto-sccs-on-dicts';
3015 /^-auto-all$/ && do {
3016 $PROFauto = '-fauto-sccs-on-all-toplevs';
3019 $PROFauto = '-fauto-sccs-on-exported-toplevs';
3022 /^-caf-all/ && do { # generate individual CAF SCC annotations
3023 $PROFcaf = '-fauto-sccs-on-individual-cafs';
3026 /^-ignore-scc$/ && do {
3027 # forces ignore of scc annotations even if profiling
3028 $PROFignore_scc = '-W';
3031 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
3034 /^-unprof-scc-auto/ && do {
3035 # generate auto SCCs on top level bindings when not profiling.
3036 # Used to measure optimisation effects of presence of sccs.
3037 $UNPROFscc_auto = ( /-all/ )
3038 ? '-fauto-sccs-on-all-toplevs'
3039 : '-fauto-sccs-on-exported-toplevs';
3042 #--------- ticky/parallel ----------------------------------------------
3043 # we sort out the details a bit later on
3045 /^-gransim$/ && do { $GRANing = 'g'; &add_syslib('concurrent'); next arg; }; # GranSim
3046 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
3047 /^-parallel$/ && do { $PARing = 'p'; &add_syslib('concurrent'); next arg; }; # parallel Haskell
3048 /^-smp$/ && do { $SMPing = 's'; &add_syslib('concurrent'); next arg; }; # parallel Haskell
3050 #-------------- "user ways" --------------------------------------------
3052 (/^-user-setup-([a-oA-Z])$/ ) &&
3054 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
3056 local($stuff) = $UserSetupOpts{$BuildTag};
3057 local(@opts) = split(/\s+/, $stuff);
3059 # feed relevant ops into the arg-processing loop (if any)
3060 unshift(@Args, @opts) if $#opts >= 0;
3064 #---------- set search paths for libraries and things ------------------
3066 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
3067 # prepends the items to the list); -I is for including C .h files.
3069 /^-i$/ && do { @Import_dir = (); # import path cleared!
3070 @SysImport_dir = ();
3071 print STDERR "WARNING: import paths cleared by `-i'\n";
3074 /^-i(.*)/ && do { local(@new_items);
3078 if ( $arg =~ /;/ ) {
3080 @new_items = split( /;/, &grab_arg_arg(*Args,'-i', $arg));
3082 @new_items = split( /:/, &grab_arg_arg(*Args,'-i', $arg));
3084 unshift(@Import_dir, @new_items);
3087 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; };
3088 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; };
3089 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; };
3091 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1);
3092 &add_syslib($syslib);
3095 #=======================================================================
3096 # various flags that we can harmlessly send to one program or another
3097 # (we will later "reclaim" some of the compiler ones now sent to gcc)
3098 #=======================================================================
3100 #---------- this driver itself (ghc) -----------------------------------
3101 # these change what executable is run for each phase:
3102 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
3103 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
3104 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
3105 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
3106 /^-pgma(.*)$/ && do { $As = $1; next arg; };
3107 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
3108 /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; };
3110 #---------- the get-anything-through opts (all pgms) -------------------
3111 # these allow arbitrary option-strings to go to any phase:
3112 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
3113 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
3114 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
3115 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
3116 /^-optcpp(.*)$/ && do { push(@Cpp_define, $1); $Only_preprocess_hc = ($1 eq "-E"); next arg; };
3117 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
3118 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
3119 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
3120 /^-optdll(.*)$/ && do { push(@Dll_flags, $1); next arg; };
3121 /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; };
3123 #---------- Haskell C pre-processor (hscpp) ----------------------------
3124 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; };
3125 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; };
3127 #---------- post-Haskell "assembler"------------------------------------
3128 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
3129 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
3131 #---------- Haskell compiler (hsc) -------------------------------------
3133 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
3134 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
3136 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
3137 /^-fignore-asserts$/ && do { push(@HsC_flags, $_); next arg; };
3139 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
3142 # have the compiler proper generate concurrent code,
3143 # really only used when you want to configure your own
3144 # special user compilation way.
3146 # (ditto for -fgransim, fscc-profiling, -fparallel and -fticky-ticky)
3148 /^-fscc-profiling$/ && do { push(@HsC_flags,$_); next arg; };
3149 /^-fticky-ticky$/ && do { push(@HsC_flags,$_); next arg; };
3150 /^-fgransim$/ && do { push(@HsC_flags,$_); next arg; };
3151 /^-fparallel$/ && do { push(@HsC_flags,$_); next arg; };
3152 /^-fsmp$/ && do { push(@HsC_flags,$_); next arg; };
3154 /^-split-objs$/ && do {
3155 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|rs6000|sparc)-/ ) {
3157 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
3162 push(@HsC_flags, "-fglobalise-toplev-names");
3163 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
3165 require('ghc-split.prl')
3166 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
3170 /^-unreg$/ && do { $UNREGing = 'u'; next arg; };
3171 /^-funregisterised$/ && do { push(@HsC_flags, $_); next arg; };
3172 /^-fno-asm-mangling$/ && do { $DoAsmMangling = 0; next arg; };
3174 /^-fallow-overlapping-instances$/ && do { push(@HsC_flags, $_); next arg; };
3175 /^-fallow-undecidable-instances$/ && do { push(@HsC_flags, $_); next arg; };
3176 /^-fhistory-size.*$/ && do { push(@HsC_flags, $_); next arg; };
3177 /^-fdicts-strict$/ && do { push(@HsC_flags, $_); next arg; };
3179 && do { push(@HsC_flags, $_);
3181 # -fglasgow-exts implies -syslib lang
3182 &add_syslib('lang');
3187 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
3188 /^-fno-speciali[sz]e$/
3189 && do { $Oopt_DoSpecialise = ''; next arg; };
3192 && do { $Oopt_UsageSPInf = '-fusagesp';
3193 push (@HsC_flags, '-fusagesp-on'); next arg; };
3195 /^-fcompiling-prelude$/ && do { $CompilingPrelude=1; push(@HsC_flags, $_); next arg; };
3197 # Now the foldr/build options, which are *on* by default (for -O).
3200 && do { $Oopt_FoldrBuild = 1;
3204 /^-fno-foldr-build$/
3205 && do { $Oopt_FoldrBuild = 0;
3208 # --------------- Renamer -------------
3211 /^-fno-prune-tydecls$/ && do { push(@HsC_flags, $_); next arg; };
3212 /^-fno-prune-instdecls$/ && do { push(@HsC_flags, $_); next arg; };
3216 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
3217 /^-fvia-[cC]$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
3222 && do { push(@HsC_flags, $_); next arg };
3224 /^-fliberate-case-.*$/
3225 && do { push(@HsC_flags, $_); next arg };
3227 /^-funfold-casms-in-hi-file$/
3228 && do { push(@HsC_flags, $_); next arg };
3230 /^(-fmax-simplifier-iterations)(.*)$/
3231 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2);
3234 /^-fno-pedantic-bottoms$/
3235 && do { $Oopt_PedanticBottoms = ''; next arg; };
3237 /^-fno-pre-inlining$/
3238 && do { push(@HsC_flags, $_); next arg };
3240 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
3241 && do { push(@HsC_flags, $_); next arg; };
3243 /^-funbox-strict-fields$/
3244 && do { push(@HsC_flags, $_); next arg; };
3246 # --------------- Warnings etc. ------
3248 /^-fwarn-(.*)$/ && do { push(@HsC_flags, $_); next arg; };
3250 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
3251 &squashHscFlag("-f$1");
3254 /^-W$/ && do { push(@HsC_flags, @MinusWOpts); next arg; };
3255 /^-Wall$/ && do { push(@HsC_flags, @MinusWallOpts); next arg; };
3256 /^(-Wnot|w)$/ && do { foreach (@Hsc_flags) {
3257 /^-fwarn-(.*)$/ && do { $_=''; };
3259 push(@HsC_antiflags, @StandardWarnings);
3262 # --------------- fun stuff ----------------
3264 /^-freport-compile$/ && do { push(@HsC_flags, $_); next arg; };
3266 # --------------- platform specific flags (for gcc mostly) ----------------
3268 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes,
3269 # for 2.6.x..?, does not apply for 2.7.2
3271 unshift(@CcBoth_flags, ( $_ ));
3274 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
3275 && do { # for GCC for SPARCs
3276 unshift(@CcBoth_flags, ( $_ ));
3279 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
3280 $StolenX86Regs = $1;
3283 #*************** ... and lots of debugging ones (form: -d* )
3285 # -d(no-)core-lint is done this way so it is turn-off-able.
3286 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
3287 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
3288 # Ditto for USP lint
3289 /^-dusagesp-lint/ && do { $USPLint = '-dusagesp-lint'; next arg; };
3290 /^-dno-usagesp-lint/ && do { $USPLint = ''; next arg; };
3291 # Ditto for STG lint
3292 /^-dstg-lint/ && do { $StgLint = '-dstg-lint'; next arg; };
3293 /^-dno-stg-lint/ && do { $StgLint = ''; next arg; };
3295 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
3296 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
3297 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
3298 /^-dshow-rn-stats/ && do { push(@HsC_flags, $_); next arg; };
3299 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
3300 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
3301 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
3302 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
3304 #*************** ... and now all these -R* ones for its runtime system...
3306 /^-Rscale-sizes?(.*)/ && do {
3307 $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1);
3310 /^(-H|-Rmax-heapsize)(.*)/ && do {
3311 local($heap_size) = &grab_arg_arg(*Args,$1, $2);
3312 if ($heap_size =~ /(\d+)[Kk]$/) {
3313 $heap_size = $1 * 1000;
3314 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
3315 $heap_size = $1 * 1000 * 1000;
3316 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
3317 $heap_size = $1 * 1000 * 1000 * 1000;
3319 if ($heap_size <= 0) {
3320 print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n";
3321 $Specific_heap_size = 0;
3323 # if several heap sizes given, take the largest...
3324 } elsif ($heap_size >= $Specific_heap_size) {
3325 $Specific_heap_size = $heap_size;
3327 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n" if $Verbose;
3331 /^(-K|Rmax-(stk|stack)size)(.*)/ && do {
3333 local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3);
3334 if ($stk_size =~ /(\d+)[Kk]$/) {
3335 $stk_size = $1 * 1000;
3336 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
3337 $stk_size = $1 * 1000 * 1000;
3338 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
3339 $stk_size = $1 * 1000 * 1000 * 1000;
3341 if ($stk_size <= 0) {
3342 print STDERR "$Pgm: resetting stack-size to zero!!! $stk_size\n";
3343 $Specific_stk_size = 0;
3345 # if several stack sizes given, take the largest...
3346 } elsif ($stk_size >= $Specific_stk_size) {
3347 $Specific_stk_size = $stk_size;
3349 print STDERR "$Pgm: ignoring stack-size-setting option ($flag $stk_size)...not the largest seen\n" if $Verbose;
3353 /^-Rgc-stats$/ && do { $CollectingGCstats++;
3354 # the two RTSs do this diff ways; we will try to compensate
3357 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
3359 #---------- C high-level assembler (gcc) -------------------------------
3360 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
3362 # -dgcc-lint is a useful way of making GCC very fussy.
3363 # From alan@spri.levels.unisa.edu.au (Alan Modra).
3364 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
3365 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
3366 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
3368 # inject "#include <wurble>" into the compiler's C output!
3370 /^-#include(.*)/ && do {
3371 local($to_include) = &grab_arg_arg(*Args,'-#include', $1);
3372 push(@CcInjects, "#include $to_include\n");
3375 #---------- Linker (gcc, really) ---------------------------------------
3377 /^-static$/ && do { $Static=1; push(@Ld_flags, $_); next arg; };
3378 /^-no-hs-main$/ && do { $NoHaskellMain=1; next arg; };
3380 #---------- mixed cc and linker magic ----------------------------------
3381 # this optimisation stuff is finally sorted out later on...
3383 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
3385 /^-O[1-2]?$/ && do {
3386 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
3387 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
3389 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
3392 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
3394 /^-Ofile(.*)/ && do {
3396 local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1);
3397 @HsC_minusO3_flags = ();
3399 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
3402 s/\#.*//; # death to comments
3403 s/[ \t]+//g; # death to whitespace
3404 next if /^$/; # ditto, blank lines
3405 s/([()*{}])/\\$1/g; # protect shell metacharacters
3407 push(@CcBoth_flags, $1);
3409 push(@HsC_minusO3_flags, $_);
3415 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
3416 # in the consistency info
3420 #---------- linking .a file --------------------------------------------
3422 /^-Main(.*)/ && do {
3423 # specifies main or mainPrimIO to be linked
3427 #---------- catch unrecognized flags -----------------------------------
3430 print STDERR "$Pgm: unrecognised option: $_\n";
3436 } # end of processArgs