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 ProjectPatchLevel
103 HscMajorVersion HscMinorVersion CcMajorVersion CcMinorVersion
107 bindir libdir libexecdir datadir
111 GHC_LIB_DIR GHC_RUNTIME_DIR GHC_UTILS_DIR GHC_INCLUDE_DIR
113 GHC_OPT_HILEV_ASM GhcWithNativeCodeGen
115 GHC_UNLIT GHC_HSCPP GHC_HSC GHC_SYSMAN
119 WAY_*_NAME WAY_*_REAL_OPTS
125 Establish what executables to run for the various phases, what the
126 default options are for those phases, and other similar boring stuff.
129 select(STDERR); $| = 1; select(STDOUT); # no STDERR buffering, please.
131 $TargetPlatform = $TARGETPLATFORM;
133 $TopPwd = "${TOP_PWD}";
134 $InstBinDirGhc = "${bindir}";
135 $InstLibDirGhc = "${libdir}";
137 # Normally the same as InstLibDirGhc, but we accommodate
138 # for it being separate.
140 $InstLibExecDirGhc = "${libexecdir}";
141 $InstDataDirGhc = "${datadir}";
143 $Status = 0; # just used for exit() status
146 # set up signal handler
147 sub quit_upon_signal { &tidy_up_and_die(1, ''); }
148 $SIG{'INT'} = 'quit_upon_signal';
149 $SIG{'QUIT'} = 'quit_upon_signal';
151 # where to get "require"d .prl files at runtime (poor man's dynamic loading)
152 # (use LIB, not DATA, because we can't be sure of arch-independence)
153 @INC = ( ( $INSTALLING ) ? $InstLibDirGhc
154 : "$TopPwd/${CURRENT_DIR}" );
156 if ( $ENV{'TMPDIR'} ) { # where to make tmp file names
157 $Tmp_prefix = ($ENV{'TMPDIR'} . "/ghc$$");
159 print STDERR "TMPDIR has not been set to anything useful!\n" if (${TMPDIR} eq '');
160 $Tmp_prefix ="${TMPDIR}/ghc$$"; # TMPDIR set via Makefile when booting..
161 $ENV{'TMPDIR'} = ${TMPDIR}; # set the env var as well
164 # Some shells run into real trouble when command line and environment
165 # gets big (e.g., cmd lines of >4K to /bin/sh causes havoc on our
166 # Solaris-2.5.1 boxes - even though sysconf(_SC_ARG_MAX) reports 1M ...).
167 # To work around any such */bin/sh* problems, we will scribble such
168 # awfully long command lines into a temp file and exec that temp file
169 # with $(REAL_SHELL) (don't use the SHELL variable directly as this
170 # will normally get you the wrong thing when the driver is invoked
171 # from within `make'). If the REAL_SHELL variable isn't set, you'll
172 # get SHELL. This is all a terrible hack. (in case you hadn't reached
173 # the same conclusion by now :-)
177 if ( ! $ENV{'REAL_SHELL'} ) {
178 $ENV{'REAL_SHELL'} = $ENV{'SHELL'};
181 @Files_to_tidy = (); # files we nuke in the case of abnormal termination
183 $Unlit = ( $INSTALLING ) ? "$InstLibExecDirGhc/unlit"
184 : "$TopPwd/${CURRENT_DIR}/${GHC_UNLIT}";
188 $Diff = $CONTEXT_DIFF;
193 $HsCpp = # but this is re-set to "cat" (after options) if -cpp not seen
194 ( $INSTALLING ) ? "$InstLibExecDirGhc/hscpp"
195 : "$TopPwd/${CURRENT_DIR}/${GHC_HSCPP}";
198 $HsC = ( $INSTALLING ) ? "$InstLibExecDirGhc/hsc"
199 : "$TopPwd/${CURRENT_DIR}/${GHC_HSC}";
201 # For PVM fiends only
202 $SysMan = ( $INSTALLING ) ? "$InstLibExecDirGhc/SysMan"
203 : "$TopPwd/${CURRENT_DIR}/${GHC_SYSMAN}";
208 # HsC_rts_flags: if we want to talk to the LML runtime system
209 # NB: we don't use powers-of-2 sizes, because this may do
210 # terrible things to cache behavior.
212 $Specific_heap_size = 6 * 1000 * 1000;
213 $Specific_stk_size = 1000 * 1000;
214 $Scale_sizes_by = 1.0;
218 The variables set by @setupOptFlags@ represent parts of the
219 -O/-O2/etc ``templates,'' which are filled in later, using these.
220 These are the default values, which may be changed by user flags.
224 $Oopt_MaxSimplifierIterations = '-fmax-simplifier-iterations4';
225 $Oopt_PedanticBottoms = '-fpedantic-bottoms'; # ON by default
226 $Oopt_MonadEtaExpansion = '';
227 $Oopt_FinalStgProfilingMassage = '';
229 $Oopt_DoSpecialise = '-fspecialise';
230 $Oopt_FoldrBuild = 0; # *Off* by default!
231 $Oopt_FB_Support = ''; # was '-fdo-arity-expand';
232 # $Oopt_FoldrBuildWW = 0; # Off by default
233 $Oopt_FoldrBuildInline = ''; # was '-fdo-inline-foldr-build';
234 $Oopt_UsageSPInf = ''; # Off by default
235 $Oopt_ShowSimplifierProgress = '';
236 } # end of setupOptFlags
238 # Assign defaults to these right away.
242 Things to do with C compilers/etc:
244 (added -Wimplicit: implicit prototypes cause very hard-to-find
245 problems, so I'm turing on the warnings -- SDM 4/5/98)
248 $CcRegd = $GHC_OPT_HILEV_ASM;
249 @CcBoth_flags = ('-S','-Wimplicit'); # flags for *any* C compilation
253 # those for all files,
254 # those only for .c files;
255 # those only for .hc files
258 @CcRegd_flags_c = ();
259 @CcRegd_flags_hc = ();
261 $As = ''; # "assembler" is normally GCC
264 $Lnkr = ''; # "linker" is normally GCC
268 # 'nm' is used for consistency checking (ToDo: mk-world-ify)
269 # ToDo: check the OS or something ("alpha" is surely not the crucial question)
270 $Nm = ($TargetPlatform =~ /^alpha-/) ? 'nm -B' : 'nm';
273 Warning packages that are controlled by -W and -Wall. The 'standard'
274 warnings that you get all the time are
276 -fwarn-overlapping-patterns
277 -fwarn-missing-methods
278 -fwarn-duplicate-exports
280 these are turned off by -Wnot.
283 @StandardWarnings = ('-fwarn-overlapping-patterns',
284 '-fwarn-missing-methods',
285 '-fwarn-duplicate-exports');
286 @MinusWOpts = (@StandardWarnings,
287 '-fwarn-incomplete-patterns',
288 '-fwarn-unused-binds',
289 '-fwarn-unused-imports');
290 @MinusWallOpts = (@MinusWOpts,
291 '-fwarn-unused-matches',
292 '-fwarn-type-defaults',
293 '-fwarn-name-shadowing',
294 '-fwarn-missing-signatures');
297 What options \tr{-user-setup-a} turn into (user-defined ``packages''
299 of options). Note that a particular user-setup implies a particular
300 Prelude ({\em including} its interface file(s)).
302 $BuildTag = ''; # default is sequential build w/ Appel-style GC
304 %BuildDescr = (# system ways begin
305 '', 'Normal Sequential',
307 '_t', "Ticky-ticky Profiling",
308 '_u', "Unregisterised",
328 '_B', "$WAY_B_NAME" );
330 # these are options that are "fed back" through the option processing loop
334 '_a', "$WAY_a_REAL_OPTS",
335 '_b', "$WAY_b_REAL_OPTS",
336 '_c', "$WAY_c_REAL_OPTS",
337 '_d', "$WAY_d_REAL_OPTS",
338 '_e', "$WAY_e_REAL_OPTS",
339 '_f', "$WAY_f_REAL_OPTS",
340 '_g', "$WAY_g_REAL_OPTS",
341 '_h', "$WAY_h_REAL_OPTS",
342 '_i', "$WAY_i_REAL_OPTS",
343 '_j', "$WAY_j_REAL_OPTS",
344 '_k', "$WAY_k_REAL_OPTS",
345 '_l', "$WAY_l_REAL_OPTS",
346 '_m', "$WAY_m_REAL_OPTS",
347 '_n', "$WAY_n_REAL_OPTS",
348 '_o', "$WAY_o_REAL_OPTS",
349 '_A', "$WAY_A_REAL_OPTS",
350 '_B', "$WAY_B_REAL_OPTS",
353 '_p', "-fscc-profiling -DPROFILING -optc-DPROFILING",
354 '_t', "-fticky-ticky -DTICKY_TICKY -optc-DTICKY_TICKY",
355 '_u', "-optc-DNO_REGS -optc-DUSE_MINIINTERPRETER -fno-asm-mangling -funregisterised",
356 '_mp', "-fstack-check -fparallel -D__PARALLEL_HASKELL__ -optc-DPAR",
357 '_mg', "-fstack-check -fconcurrent -fgransim -D__GRANSIM__ -D__CONCURRENT_HASKELL__ -optc-DCONCURRENT -optc-DGRAN");
361 Import/include directories (\tr{-I} options) are sufficiently weird to
362 require special handling.
365 @Import_dir = ('.'); #-i things
366 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
368 # where to look for interface files (system hi's, i.e., prelude and syslibs)
369 @SysImport_dir = ( $INSTALLING )
370 ? ( "$InstLibDirGhc/imports/std" )
371 : ( "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std" );
373 # We need to look in ghc/ and glaExts/ when searching for implicitly needed .hi files, but
374 # we should really *not* look there for explicitly imported modules.
376 $Haskell1Version = 5; # i.e., Haskell 1.4
379 # Cpp symbols defined when we're processing Haskell source.
382 ( "-D__HASKELL1__=$Haskell1Version"
383 , "-D__GLASGOW_HASKELL__=$ProjectVersionInt"
385 , "-D__CONCURRENT_HASKELL__"
388 @UserLibrary_dir= (); #-L things;...
389 @UserLibrary = (); #-l things asked for by the user
391 @SysLibrary_dir = ( ( $INSTALLING ) #-syslib things supplied by the system
393 : ( "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR"
394 , "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/gmp"
395 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std"
396 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std/cbits"
399 @SysLibrary = (); # will be built up as we go along
401 $TopClosureFile # defaults to 1.2 one; will be mangled later
403 # ( $INSTALLING) ? "$InstLibDirGhc/TopClosureXXXX.o"
404 # : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/main/TopClosureXXXX.o";
406 # make depend for Haskell
408 = ( $INSTALLING ) ? "$InstLibExecDirGhc/mkdependHS"
409 : "$TopPwd/$CURRENT_DIR/$GHC_UTILS_DIR/mkdependHS/mkdependHS";
411 @MkDependHS_flags = ();
413 # do_link flag should not be reset while rescanning the cmd-line.
415 $Specific_output_dir = ''; # set by -odir <dir>
416 $Specific_output_file = ''; # set by -o <file>; "-" for stdout
419 Function to initialise the per-compilation-unit globals that
420 are used to guide and control the invocation of the different phases.
423 sub initDriverGlobals {
425 # reset the following options:
426 # RTS flags to use while compiling
428 @HsP_flags = (); # these are the flags destined solely for
429 # the flex/yacc parser
434 The optimisations/etc to be done by the compiler are {\em normally}
435 expressed with a \tr{-O} (or \tr{-O2}) flag, or by its absence.
438 $OptLevel = 0; # no -O == 0; -O == 1; -O2 == 2; -Ofile == 3
439 $MinusO2ForC = 0; # set to 1 if -O2 should be given to C compiler
440 $StolenX86Regs = 4; # **HACK*** of the very worst sort
445 @Import_dir = ('.'); #-i things
446 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
451 We are given a list of files with various presumably-known suffixes
452 (unknown-suffix files go straight to the linker). For each file, we
453 begin by assuming that we'll run every phase over it. However: (1)
454 global flags (\tr{-c}, \tr{-S}, etc.) tell us not to run any phase
455 past a certain point; and (2) the file's suffix tells us what phase to
456 start with. Linking is weird and kept track of separately.
458 Here are the initial defaults applied to all files:
460 $Cpp_flag_set = 0; # (hack)
461 $Only_preprocess_C = 0; # pretty hackish
462 $Only_preprocess_hc = 0; # ditto
463 $Only_generate_deps = 0; # ""
464 $Only_generate_dll = 0;
465 $PostprocessCcOutput = 0;
468 # static = 0 => produce code for DLLs (when compiling & linking.)
470 $Static = 0 if ($EnableWin32DLLs eq 'YES');
472 # native code-gen or via C?
473 $HaveNativeCodeGen = $GhcWithNativeCodeGen;
474 $HscOut = '-C='; # '-C=' ==> .hc output; '-S=' ==> .s output; '-N=' ==> neither
476 if ($HaveNativeCodeGen ne 'YES') && $TargetPlatform =~ /^(alpha)-/;
477 # TEMP: disable x86 & Sparc if $HaveNativeCodeGen && $TargetPlatform =~ /^(i386|alpha|sparc)-/;
478 $ProduceHi = '-hifile=';
484 $CollectingGCstats = 0;
485 $CollectGhcTimings = 0;
486 $DEBUGging = ''; # -DDEBUG and all that it entails (um... not really)
487 $PROFing = ''; # set to p or e if profiling
488 $PROFgroup = ''; # set to group if an explicit -Ggroup specified
489 $PROFauto = ''; # set to relevant hsc flag if -auto or -auto-all
490 $PROFcaf = ''; # set to relevant hsc flag if -caf-all
491 $PROFdict = ''; # set to relevant hsc flag if -auto-dicts
492 $PROFignore_scc = ''; # set to relevant parser flag if explicit sccs ignored
493 $UNPROFscc_auto = ''; # set to relevant hsc flag if forcing auto sccs without profiling
494 $TICKYing = ''; # set to t if compiling for ticky-ticky profiling
495 $PARing = ''; # set to p if compiling for PAR
496 $GRANing = ''; # set to g if compiling for GRAN
497 $UNREGing = ''; # set to u if compiling unregisterised
498 $Specific_hi_file = ''; # set by -ohi <file>; "-" for stdout
499 $Specific_dump_file = ''; # set by -odump <file>; "-" for stdout
500 $Using_dump_file = 0;
502 $Osuffix = ''; # default: use the normal suffix for that kind of output
504 $HiSuffix_prelude = '';
506 $Do_recomp_chkr = 0; # don't use the recompilatio checker unless asked
507 $Do_cc = -1; # a MAGIC indeterminate value; will be set to 1 or 0.
510 $Keep_hc_file_too = 0;
511 $Keep_s_file_too = 0;
512 $UseGhcInternals = 0; # if 1, may use GHC* modules
514 $DoAsmMangling = 1; # on by default, off by -fno-asm-mangling
516 $Dump_parser_output = 0;
518 $Dump_asm_splitting_info = 0;
519 $NoImplicitPrelude = 0;
520 # 1 => don't tell the linker to hoist in PrelMain.Main, as an
521 # external main is provided instead.
524 } # end of initDriverGlobals (Sigh)
526 # we split the argv passed to the driver into three:
531 # and files to be linked...
537 # cmd line options prefixing the unit we're compiling
542 We inject consistency-checking information into \tr{.hc} files (both
543 when created by the Haskell compiler and when compiled by the C
544 compiler), so that we can check that an executable is made from
545 consistently-built pieces. (The check is normally done just after
546 linking.) The checking is done by introducing/munging
547 \tr{what(1)}-style strings. Anyway, here are the relevant global
548 variables and their defaults:
550 $LinkChk = 0; # set to 0 if the link check should *not* be done
552 # major & minor version numbers; major numbers must always agree;
553 # minor disagreements yield a warning.
554 $HsC_major_version = $HscMajorVersion;
555 $HsC_minor_version = $HscMinorVersion;
556 $Cc_major_version = $CcMajorVersion;
557 $Cc_minor_version = $CcMinorVersion;
559 # options: these must always agree
560 $HsC_consist_options = ''; # we record, in this order:
561 # Build tag; debugging?
562 $Cc_consist_options = ''; # we record, in this order:
563 # Build tag; debugging?
566 %************************************************************************
568 \section[Driver-parse-argv]{Munge the command-line options}
570 %************************************************************************
572 Now slurp through the arguments.
575 &initDriverGlobals();
576 &splitCmdLine(@ARGV);
577 # Run through the cmd-line first time.
578 &processArgs(@Cmd_opts);
580 # Check to see if driver is only in the business
581 # to generate dependencies
582 if ( $Status == 0 && $Only_generate_deps ) {
584 push (@MkDependHS_flags, "-o$Osuffix") if $Osuffix;
585 push (@MkDependHS_flags, "-s$BuildTag") if $BuildTag;
586 # They're not (currently) needed, but we need to quote any -#include options
587 foreach (@Cmd_opts) {
588 s/-#include.*$/'$&'/g;
590 local($to_do) = "$MkDependHS @MkDependHS_flags @HsSourceCppOpts -- @Cmd_opts -- @Input_file" ;
591 &run_something($to_do, 'Haskell dependencies');
595 # ..or just to construct a (Haskell) DLL.
596 if ( $Status == 0 && $Only_generate_dll && $EnableWin32DLLs ) {
602 # if there are several input files,
603 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
604 # (except if linking, of course)
606 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
607 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
608 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
609 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
610 print STDERR "\tPerhaps the -odir option will do what you want.\n";
615 # check for various pathological -o and -odir combinations...
616 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
617 if ($Specific_output_file eq '-') {
618 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
620 } else { # amalgamate...
621 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
622 # ToDo: check we haven't got a junk name now...
623 $Specific_output_dir = ''; # reset
627 # crash and burn if there were errors
629 print STDERR $ShortUsage;
634 %************************************************************************
636 \section[Driver-post-argv-mangling]{Setup after reading options}
638 %************************************************************************
640 %************************************************************************
642 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
644 %************************************************************************
646 We come now to the default ``wads of options'' that are turned on by
647 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
648 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
651 The user can also specify his/her own list of options in a file; in
652 that case, the work is already done (see stuff about @minusO3@,
655 GHC allows very precise control of what happens during a compilation.
656 Core-to-Core and STG-to-STG passes can be run in any order, as many
657 times as you like. Individual transformations can be turned on or
660 Sadly, however, there are some interdependencies \& Things You Must
661 Not Do. Here is the list.
665 \item[\tr{-fspecialise}:]
666 The specialiser must have dependency-analysed input; but if you run
667 the simplifier to do this, you must not let it toss away unused
668 bindings! (The typechecker conveys some specialisation info via
669 ``unused'' bindings...)
671 \item[\tr{-ffloat-inwards}:]
672 Floating inwards should be done before strictness analysis, because
673 the latter will give better results.
675 \item[\tr{-fstatic-args}:]
676 The static-arguments-transformation pass {\em must} have the
677 simplifier run right after it.
679 \item[\tr{-fcalc-inlinings[12]}:]
680 Not required, but there may be slight gains by re-simplifying after
681 this is done. (You could then \tr{-fcalc-inlinings} again, just for
684 \item[\tr{-ffull-laziness}:]
685 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
686 that's run. (Um, well, howzabout the simplifier just once more...)
691 \item[\tr{-fupdate-analysis}:]
692 It really really wants to be the last STG-to-STG pass that is run.
697 sub setupOptimiseFlags {
703 '-ffloat-lets-exposing-whnf',
704 '-ffloat-primops-ok',
707 # '-fdo-lambda-eta-expansion', # too complicated
709 # '-flet-to-case', # no strictness analysis, so...
710 $Oopt_PedanticBottoms,
711 # $Oopt_MonadEtaExpansion, # no thanks
713 # These two work fine, if you really want no simplification at all,
714 # for bizarre test reasons. But you get really terrible code if you use them,
715 # for example: let x = e in x
716 # with dozens of redundant thunks etc. So I'm leaving them out.
718 # '-fsimpl-uf-use-threshold0',
719 # '-fessential-unfoldings-only',
722 # The presence of -fclone-binds is *temporary* to work around
723 # the fact that the desugarer in 3.0{2.3} does generate
724 # bindings with identical ids, and the type checker doesn't perform
725 # properly cloned type substitutions. Instead, we make sure that all
726 # binders are cloned first time through the simplifier.
728 # Will be properly fixed in the `new compiler` I hear, at which point
729 # the cloning can be turned off here.
734 $Oopt_MaxSimplifierIterations,
735 $Oopt_ShowSimplifierProgress,
738 # '-ffull-laziness', # removed 95/04 WDP following Andr\'e's lead
740 $Oopt_FinalStgProfilingMassage
743 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
745 '-fdo-eta-reduction',
747 # initial simplify: mk specialiser happy: minimum effort please
751 '-fkeep-spec-pragma-ids', # required before specialisation
753 # I don't understand why we want -fessential-unfoldings-only here
754 # If we have it, the following nasty thing happens:
758 # where "*" means exported.
759 # In the essential-unfoldings pass we still substitute f for g
760 # but we don't substitute E for f first. So we get
764 # The g=f will get reverse-substituted later, but it's untidy. --SLPJ
766 # SDM: Here's why it's necessary.
768 # If we unfold in the first pass before the specialiser is run
769 # we miss opportunities for specialisation because eg. wrappers
770 # have been inlined for specialisable functions.
772 # This shows up in PrelArr.lhs - the specialised instance for newArray
773 # calls the generic rangeSize, because rangeSize is strict and is
774 # replaced by its wrapper by the simplifier.
776 '-fessential-unfoldings-only',
777 '-fsimpl-uf-use-threshold0',
779 # See remark re: cloning in defn of minusnotO
783 '-fmax-simplifier-iterations1',
784 $Oopt_PedanticBottoms,
787 ($Oopt_DoSpecialise) ? (
791 $Oopt_UsageSPInf, # infer usage information here in case we need it later.
792 # (add more of these where you need them --KSW 1999-04)
794 '-fsimplify', # need dependency anal after specialiser ...
795 '[', # need tossing before calc-inlinings ...
797 '-ffloat-lets-exposing-whnf',
798 '-ffloat-primops-ok',
802 # '-fdo-eta-reduction',
803 '-fdo-lambda-eta-expansion',
805 $Oopt_PedanticBottoms,
806 $Oopt_MonadEtaExpansion,
807 $Oopt_MaxSimplifierIterations,
808 $Oopt_ShowSimplifierProgress,
810 # The presence of -fclone-binds is *crucial* here as
811 # -ffull-laziness (which we're about to do next) floats
812 # bindings outwards, so we better make sure that this
813 # doesn't result in the floating out of bindings
814 # with identical uniques, i.e., -ffull-laziness needs
815 # to be preceeded by a simplifier pass with -fclone-binds
820 # ($Oopt_FoldrBuildWW) ? (
821 # '-ffoldr-build-ww-anal',
822 # '-ffoldr-build-worker-wrapper',
826 # '-ffloat-lets-exposing-whnf',
827 # '-ffloat-primops-ok',
831 # '-fdo-eta-reduction',
832 # '-fdo-lambda-eta-expansion',
834 # $Oopt_PedanticBottoms,
835 # $Oopt_MonadEtaExpansion,
836 # $Oopt_MaxSimplifierIterations,
837 # $Oopt_ShowSimplifierProgress,
841 # this pass-ordering sequence was agreed by Simon and Andr\'e
842 # (WDP 94/07, 94/11).
845 ($Oopt_FoldrBuild) ? (
846 '-ffoldr-build-on', # desugar list comprehensions for foldr/build
850 '-fignore-inline-pragma', # **** NB!
851 '-fdo-foldr-build', # NB
853 '-ffloat-lets-exposing-whnf',
854 '-ffloat-primops-ok',
858 # '-fdo-eta-reduction',
859 '-fdo-lambda-eta-expansion', # After full laziness
861 $Oopt_PedanticBottoms,
862 $Oopt_MonadEtaExpansion,
863 $Oopt_MaxSimplifierIterations,
864 $Oopt_ShowSimplifierProgress,
873 '-ffloat-lets-exposing-whnf',
874 '-ffloat-primops-ok',
878 '-fdo-eta-reduction',
879 '-fdo-lambda-eta-expansion',
881 ($Oopt_FoldrBuildInline),
882 # you need to inline foldr and build
883 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
884 # but do reductions if you see them!
885 $Oopt_PedanticBottoms,
886 $Oopt_MonadEtaExpansion,
887 $Oopt_MaxSimplifierIterations,
888 $Oopt_ShowSimplifierProgress,
897 '-ffloat-lets-exposing-whnf',
898 '-ffloat-primops-ok',
902 # '-fdo-eta-reduction',
903 '-fdo-lambda-eta-expansion',
905 '-flet-to-case', # Aha! Only done after strictness analysis
906 $Oopt_PedanticBottoms,
907 $Oopt_MonadEtaExpansion,
908 $Oopt_MaxSimplifierIterations,
909 $Oopt_ShowSimplifierProgress,
914 # Case-liberation for -O2. This should be after
915 # strictness analysis and the simplification which follows it.
919 # : "-fliberate-case -fsimplify [ $Oopt_FB_Support -ffloat-lets-exposing-whnf -ffloat-primops-ok -fcase-of-case -fdo-case-elim -fcase-merge -fdo-eta-reduction -fdo-lambda-eta-expansion -freuse-con -flet-to-case $Oopt_PedanticBottoms $Oopt_MonadEtaExpansion $Oopt_MaxSimplifierIterations $Oopt_ShowSimplifierProgress ]" ),
921 # Final clean-up simplification:
926 '-ffloat-lets-exposing-whnf',
927 '-ffloat-primops-ok',
931 # '-fdo-eta-reduction',
932 '-fdo-lambda-eta-expansion',
935 '-fignore-inline-pragma', # **** NB!
936 $Oopt_FoldrBuildInline,
937 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
938 # but still do reductions if you see them!
939 $Oopt_PedanticBottoms,
940 $Oopt_MonadEtaExpansion,
941 $Oopt_MaxSimplifierIterations,
942 $Oopt_ShowSimplifierProgress,
947 #LATER: '-fcalc-inlinings2', -- pointless for 2.01
951 $Oopt_FinalStgProfilingMassage,
957 # SPECIAL FLAGS for -O2
959 '-fupdate-analysis', # virtually useless; relegated to -O2
966 Sort out what we're going to do about optimising. First, the @hsc@
967 flags and regular @cc@ flags to worry about:
969 if ( $OptLevel <= 0 ) {
971 # for this level, we tell the parser -fignore-interface-pragmas
972 push(@HsC_flags, '-fignore-interface-pragmas');
973 # and tell the compiler not to produce them
974 push(@HsC_flags, '-fomit-interface-pragmas');
976 &add_Hsc_flags( @HsC_minusNoO_flags );
977 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
979 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
981 &add_Hsc_flags( @HsC_minusO_flags );
982 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
983 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
984 # but it *is* useful in compiling the garbage collector.
986 } else { # -Ofile, then...
988 &add_Hsc_flags( @HsC_minusO3_flags );
989 push(@HsC_flags, $Oopt_FinalStgProfilingMassage) if $Oopt_FinalStgProfilingMassage;
991 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
994 } # setupOptimiseFlags
998 %************************************************************************
1000 \subsection{Check for consistency, etc.}
1002 %************************************************************************
1004 Sort out @$BuildTag@, @$PROFing@, @$PARing@,
1005 @$GRANing@, @$TICKYing@, @UNREGing@:
1007 sub setupBuildFlags {
1010 # PROFILING stuff after argv mangling:
1012 # warn about any scc exprs found (in case scc used as identifier)
1013 push(@HsP_flags, '-W');
1015 # add -auto sccs even if not profiling !
1016 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
1019 push(@HsC_flags, $PROFauto) if $PROFauto;
1020 push(@HsC_flags, $PROFcaf) if $PROFcaf;
1021 push(@HsC_flags, $PROFdict) if $PROFdict;
1023 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
1025 # Ignore user sccs when auto annotating, but warn when doing so.
1026 $PROFignore_scc = '-W' if $PROFauto;
1028 push(@HsP_flags, (($PROFignore_scc) ? $PROFignore_scc : '-S'));
1030 #if ( $BuildTag ne '' ) {
1031 # local($b) = $BuildDescr{$BuildTag};
1032 # if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
1033 # if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
1034 # if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
1036 # # ok to have a user-way profiling build
1037 # # eval the profiling opts ... but leave user-way BuildTag
1038 # if ($PROFing eq 'p') { &processArgs(split(' ', $SetupOpts{'_p'})); } # eval($EvaldSetupOpts{'_p'}); }
1040 if ( $PROFing eq 'p' ) {
1041 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
1042 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
1043 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
1046 } elsif ( $PARing eq 'p' ) {
1047 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
1048 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
1051 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
1052 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
1056 } elsif ( $GRANing eq 'g' ) {
1057 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
1060 } elsif ( $TICKYing eq 't' ) {
1063 } elsif ( $UNREGing eq 'u' ) {
1069 After the sanity checks, add flags to the necessary parts of the driver pipeline:
1072 if ( $BuildTag ne '' ) { # something other than normal sequential...
1074 local($Tag) = "${BuildTag}";
1075 $Tag =~ s/_//; # move the underscore to the back
1077 $HscOut = '-C='; # must go via C
1078 &processArgs(split(' ', $SetupOpts{$BuildTag}));
1079 # eval($EvaldSetupOpts{$BuildTag});
1083 Decide what the consistency-checking options are in force for this run:
1086 $HsC_consist_options = "${BuildTag},${DEBUGging}";
1087 $Cc_consist_options = "${BuildTag},${DEBUGging}";
1090 # Funny place to put it, but why not.
1092 if ( $HiSuffix_prelude eq '' ) {
1094 if ($CompilingPrelude) {
1095 $HiSuffix_prelude = "$HiSuffix" if $CompilingPrelude;
1097 local($Tag) = "${BuildTag}";
1100 $Tag = "${Tag}_" if $Tag ne '';
1101 $HiSuffix_prelude="${Tag}hi";
1107 %************************************************************************
1109 \subsection{Add on machine-specific C-compiler flags}
1111 %************************************************************************
1113 Shove on magical machine-specific options. We use \tr{unshift} to
1114 stick them on the {\em front} of the arrays, so that ``later''
1115 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
1117 Note: a few ``always apply'' flags were set at the very beginning.
1122 if ($TargetPlatform =~ /^alpha-/) {
1123 unshift(@CcBoth_flags, ('-static'));
1125 } elsif ($TargetPlatform =~ /^hppa/) {
1126 unshift(@CcBoth_flags, ('-static'));
1128 # We don't put in '-mlong-calls', because it's only
1129 # needed for very big modules (sigh), and we don't want
1130 # to hobble ourselves further on all the other modules
1133 # [Dated comment (gcc-2.6.x?), -mlong-calls is no longer
1134 # a supported gcc HPPA flag]
1135 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
1136 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
1137 # (very nice, but too bad the HP /usr/include files don't agree.)
1139 } elsif ($TargetPlatform =~ /^i386-/) {
1140 # -fno-defer-pop : basically the same game as for m68k
1142 # -fomit-frame-pointer : *must* in .hc files; because we're stealing
1143 # the fp (%ebp) for our register maps.
1145 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1146 unshift(@CcRegd_flags_hc, '-fomit-frame-pointer');
1147 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1149 unshift(@CcBoth_flags, ('-DDONT_WANT_WIN32_DLL_SUPPORT')) if ($Static);
1151 } elsif ($TargetPlatform =~ /^m68k-/) {
1152 # -fno-defer-pop : for the .hc files, we want all the pushing/
1153 # popping of args to routines to be explicit; if we let things
1154 # be deferred 'til after an STGJUMP, imminent death is certain!
1156 # -fomit-frame-pointer : *don't*
1157 # It's better to have a6 completely tied up being a frame pointer
1158 # rather than let GCC pick random things to do with it.
1159 # (If we want to steal a6, then we would try to do things
1160 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1162 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1163 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1164 # maybe gives reg alloc a better time
1165 # also: -fno-defer-pop is not sufficiently well-behaved without it
1167 } elsif ($TargetPlatform =~ /^mips-/) {
1168 unshift(@CcBoth_flags, ('-static'));
1170 } elsif ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1171 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1172 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1173 } elsif ($TargetPlatform =~ /^sparc-/) {
1175 } # end of setupMachOpts
1178 %************************************************************************
1180 \subsection{Set up for warnings}
1182 %************************************************************************
1184 Several warnings are turned on by default. These are supposed to be
1185 the 'I'm pretty sure you've made a mistake here' kind of warnings.
1186 The rest are turned on by the -W and -Wall options, or individually
1187 via their -fwarn and -fno-warn flags.
1190 sub setupWarningFlags {
1191 &add_Hsc_flags( @StandardWarnings );
1195 Same unshifting magic, but for special linker flags.
1197 The configure script determines whether the object file symbol tables
1198 have a leading underscore, and sets @LeadingUnderscore@ accordingly.
1199 (The driver script `sees' the setting of the @LeadingUnderscore@
1200 by having the Makefile prepend it).
1204 local($uscore) = ( ${LeadingUnderscore} eq 'YES' ) ? '_' : '';
1207 (($Ld_main) ? ( '-u', "${uscore}Main_" . $Ld_main . '_closure' ) : ()));
1209 # things that are referenced by the RTS - make sure that we pull 'em in
1211 ( '-u', "${uscore}PrelBase_Izh_static_info"
1212 ,'-u', "${uscore}PrelBase_Czh_static_info"
1213 ,'-u', "${uscore}PrelBase_Fzh_static_info"
1214 ,'-u', "${uscore}PrelBase_Dzh_static_info"
1215 ,'-u', "${uscore}PrelAddr_Azh_static_info"
1216 ,'-u', "${uscore}PrelAddr_Wzh_static_info"
1217 ,'-u', "${uscore}PrelAddr_I64zh_static_info"
1218 ,'-u', "${uscore}PrelAddr_W64zh_static_info"
1219 ,'-u', "${uscore}PrelStable_StablePtr_static_info"
1220 ,'-u', "${uscore}PrelBase_Izh_con_info"
1221 ,'-u', "${uscore}PrelBase_Czh_con_info"
1222 ,'-u', "${uscore}PrelBase_Fzh_con_info"
1223 ,'-u', "${uscore}PrelBase_Dzh_con_info"
1224 ,'-u', "${uscore}PrelAddr_Azh_con_info"
1225 ,'-u', "${uscore}PrelAddr_Wzh_con_info"
1226 ,'-u', "${uscore}PrelAddr_I64zh_con_info"
1227 ,'-u', "${uscore}PrelAddr_W64zh_con_info"
1228 ,'-u', "${uscore}PrelStable_StablePtr_con_info"
1229 ,'-u', "${uscore}PrelBase_False_static_closure"
1230 ,'-u', "${uscore}PrelBase_True_static_closure"
1231 ,'-u', "${uscore}PrelPack_unpackCString_closure"
1232 ,'-u', "${uscore}PrelException_stackOverflow_closure"
1233 ,'-u', "${uscore}PrelException_heapOverflow_closure"
1235 if (!$NoHaskellMain) {
1236 unshift (@Ld_flags,'-u', "${uscore}PrelMain_mainIO_closure");
1238 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1239 # sometimes we have lots of toc entries...
1240 # unshift(@Ld_flags, ('-Xlinker -bbigtoc -Xlinker -bnoquiet'));
1241 unshift(@Ld_flags, ('-Xlinker -bbigtoc'));
1245 } # end of setupLinkOpts
1249 %************************************************************************
1251 \subsection{Set up include paths and system-library enslurpment}
1253 %************************************************************************
1255 Now that we know what garbage-collector, etc., are required, we can
1256 finalise our list of libraries to slurp through, and generally Get
1261 # default includes must be added AFTER option processing
1262 if ( ! $INSTALLING ) {
1263 push (@Include_dir, "$TopPwd/${CURRENT_DIR}/${GHC_INCLUDE_DIR}");
1265 push (@Include_dir, "$InstLibDirGhc/includes");
1266 push (@Include_dir, "$InstLibDirGhc/includes");
1268 } # end of setupIncPaths
1273 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1276 foreach $f (@SysLibrary) {
1277 next if $f =~ /_cbits/;
1278 $f .= $BuildTag if $f =~ /^-lHS/;
1281 # Push library HSrts, plus boring clib bit
1282 push(@SysLibrary, "-lHSrts${BuildTag}");
1285 # RTS compiled with cygwin32, uses the WinMM API
1286 # to implement the itimers, since cygwin.dll does not
1287 # support it. Only reqd. for `ways' that use itimers.
1289 push(@SysLibrary, '-lwinmm') if $TargetPlatform eq 'i386-unknown-cygwin32';
1290 # Note: currently only tested with mingw, may cause conflicts when linking
1292 push(@SysLibrary, '-lwsock32') if ($TargetPlatform =~ /-(mingw32|cygwin32)$/);
1294 # Push the pvm libraries
1295 if ($BuildTag eq '_mp') {
1296 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1297 push(@SysLibrary, "-L$pvmlib", '-lgpvm3', '-lpvm3');
1298 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1299 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1300 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1301 push(@SysLibrary, '-lsocket', '-lnsl');
1305 # Push the GNU multi-precision arith lib; and the math library
1307 # If this machine has GMP already installed, then we'll get the installed
1308 # lib here, because presumably the one in the tree won't have been built.
1310 if ($LibGmp eq 'not-installed') {
1311 push(@SysLibrary, "-lgmp");
1313 push(@SysLibrary, "-l$LibGmp");
1316 push(@SysLibrary, '-lm') if !( $TargetPlatform =~ /^.*(cygwin32|mingw32)$/ );
1319 %************************************************************************
1321 \subsection{Check that this system was built to do what we are asking}
1323 %************************************************************************
1325 Before continuing we check that the appropriate build is available.
1328 #die "$Pgm: no BuildAvail?? $BuildTag\n" if $BuildDescr{$BuildTag} eq '' ; # sanity
1330 if ( $BuildDescr{$BuildTag} eq '' ) {
1331 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1332 "' \"build\" is not available with your GHC setup.\n";
1333 print STDERR "(It was not configured for it at your site.)\n";
1334 print STDERR $ShortUsage;
1338 } # end of setupSyslibs
1342 %************************************************************************
1344 \subsection{Final miscellaneous setup bits before we start going}
1346 %************************************************************************
1348 Record largest specific heapsize, if any.
1350 sub setupHeapStackSize {
1351 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1352 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1353 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1354 push(@HsC_rts_flags, "-K$Specific_stk_size");
1358 If no input or link files seen, then we let 'em feed in stdin; this is
1359 mainly for debugging.
1363 if ($#Input_file < 0 && $#Link_file < 0) {
1364 @Input_file = ( '-' );
1366 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1367 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n" if -t;
1368 while (<STDIN>) { print INF $_; }
1369 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1374 Tell the world who we are, if they asked.
1376 print STDERR "${ProjectName}, version ${ProjectVersion}, patchlevel ${ProjectPatchLevel}\n"
1380 %************************************************************************
1382 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1384 %************************************************************************
1386 Process the input files; don't continue with linking if there are
1387 problems (global variable @$Status@ non-zero).
1389 foreach $ifile (@Input_file) {
1390 &ProcessInputFile($ifile);
1393 # don't link if there were errors...
1394 if ( $Status > 0 ) {
1395 print STDERR $ShortUsage;
1400 # Link if appropriate.
1401 &runLinker() if $Do_lnkr;
1403 # that... that's all, folks!
1405 exit $Status; # will still be 0 if all went well
1408 %************************************************************************
1410 \section[Driver-do-one-file]{How to process a single input file}
1412 %************************************************************************
1415 sub ProcessInputFile {
1416 local($ifile) = @_; # input file name
1417 local($ifile_root); # root of or basename of input file
1418 local($ofile_target); # ultimate output file we hope to produce
1419 # from input file (need to know for recomp
1420 # checking purposes)
1421 local($hifile_target);# ditto (but .hi file)
1422 local($ofile_c_stub_target);
1423 local($ofile_h_stub_target);
1426 Handle the weirdity of input from stdin.
1428 if ($ifile ne '-') {
1429 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1430 $ofile_target = # may be reset later...
1431 ($Specific_output_file ne '' && ! $Do_lnkr)
1432 ? $Specific_output_file
1433 : &odir_ify($ifile_root, 'o');
1434 $hifile_target= ($Specific_hi_file ne '')
1436 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1437 # NB: may change if $ifile_root isn't module name (??)
1438 ($ofile_c_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.c/;
1439 ($ofile_h_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.h/;
1441 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1442 $ifile_root = '_stdin';
1443 $ofile_target = '_stdout'; # gratuitous?
1444 $hifile_target= '_stdout'; # ditto?
1448 We need to decide what phases of the compilation system we will run
1449 over this file. The defaults are the ones established when processing
1450 flags. (That established what the last phase run for all files is.)
1452 We do the pre-recompilation-checker phases here; the rest later.
1456 Look at the suffix and decide what initial phases of compilation may
1457 be dropped off for this file. Also the rather boring business of
1458 which files are coming-in/going-out.
1460 Again, we'll do the post-recompilation-checker parts of this later.
1462 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1463 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1466 # names of the files to stuff between phases
1467 # defaults are temporaries
1468 local($in_lit2pgm) = $ifile;
1469 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1470 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1471 local($hsc_hi) = "$Tmp_prefix.hi";
1472 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1473 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1474 local($as_out) = $ofile_target;
1476 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
1478 # OK, let's strip off some literate junk..
1480 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
1482 $lit2pgm_hscpp = $ifile;
1488 # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas
1489 &check_for_source_options($lit2pgm_hscpp,$ifile);
1491 # Options found in the source file take a back seat, i.e., we scan
1492 # them first. Only process the command line again if source file
1493 # contained anything of interest *or* there's more than one
1494 # input file (we have to reset the options).
1496 if ( $#Input_file >= 0 || $#File_options >= 0) {
1497 #@File_options = (@File_options, @Cmd_opts);
1499 # Now process the command line
1500 &initDriverGlobals();
1501 &processArgs((@File_options,@Cmd_opts));
1502 print STDERR "\nEffective command line: " .
1503 join(' ',(@File_options,@Cmd_opts)) . "\n" if $Verbose;
1506 # Having got the effective command line scanned, set up
1507 # the various options in prep for some real work.
1509 # check the sanity of the BuildTag we're about to use,
1510 # and if needs be, add some more flags and setup to
1511 # the different phases.
1514 &setupOptimiseFlags();
1517 &setupWarningFlags();
1518 &setupHeapStackSize();
1521 # These two variables need to be set after the
1522 # command-line has been processed and the build options
1523 # have be seen set up. This is because command-line options
1524 # can control whether to compile vias C or not.
1526 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1528 : ( ($HscOut eq '-C=') ? 1 : 0 );
1529 local($do_as) = $Do_as;
1530 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1531 local($hsc_out_c_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.c" : "";
1532 local($hsc_out_h_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.h" : "";
1534 if ($Only_preprocess_hc) { # stop after having run $Cc -E
1537 if ($Only_preprocess_C) { # stop after having run $hscpp
1538 $do_hsc=0; $do_cc = 0; $do_as=0;
1539 } elsif ($ifile =~ /.lhs$/ || $ifile =~ /.hs$/ ) {
1541 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
1542 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1544 $hsc_out_c_stub = '';
1545 $hsc_out_h_stub = '';
1546 } elsif ($ifile =~ /\.c$/) {
1547 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1548 $hsc_out = $ifile; $is_hc_file = 0;
1549 $hsc_out_c_stub = '';
1550 $hsc_out_h_stub = '';
1551 } elsif ($ifile =~ /\.[sS]$/) {
1552 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
1554 } else { # don't know what it is, but nothing to do herein...
1555 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
1558 # hack to avoid running hscpp
1559 $HsCpp = $Cat if ! $Cpp_flag_set;
1561 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) if $do_hscpp;
1565 We now think about whether to run hsc/cc or not (when hsc produces .s
1566 stuff, it effectively takes the place of both phases).
1567 To get the output file name right: for each phase that we are {\em
1568 not} going to run, set its input (i.e., the output of its preceding
1569 phase) to @"$ifile_root.<suffix>"@.
1572 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
1575 # Warning issued if -keep-hc-file-too is used without
1576 # -fvia-C (or the equivalent)
1578 if ( $HscOut ne '-C=' && $Keep_hc_file_too ) {
1579 print STDERR "$Pgm: warning: Native code generator to be used, -keep-hc-file-too will be ignored\n";
1582 if (! $do_cc && ! $do_as) { # stopping after hsc
1583 $hsc_out = ($Specific_output_file ne '')
1584 ? $Specific_output_file
1585 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
1587 $ofile_target = $hsc_out; # reset
1590 if (! $do_as) { # stopping after gcc (or hsc)
1591 $cc_as = ($Specific_output_file ne '')
1592 ? $Specific_output_file
1593 : &odir_ify($ifile_root, ( $Only_preprocess_hc ) ? 'i' : 's');
1595 $ofile_target = $cc_as; # reset
1601 Now the Haskell compiler, C compiler, and assembler
1605 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
1606 $ofile_target, $hifile_target,
1607 $going_interactive);
1610 if (-f $hsc_out_h_stub) {
1611 &run_something("cp $hsc_out_h_stub $ofile_h_stub_target", 'Copy foreign export header file');
1614 if (-f $hsc_out_c_stub) {
1615 &run_something("cp $hsc_out_c_stub $ofile_c_stub_target", 'Copy foreign export C stubs');
1616 local ($hsc_out_s_stub);
1617 local ($hsc_out_o_stub);
1618 ($ofile_s_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$/\.s/;
1619 ($ofile_o_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$/\.o/;
1620 &runGcc (0, $ofile_c_stub_target, $ofile_s_stub_target);
1621 &runAs ($ofile_o_stub_target, $ofile_s_stub_target);
1623 # Bring the C stub protos into scope when compiling the .hc file.
1625 push (@CcInjects, "#include \"${hsc_out_h_stub}\"\n");
1626 # Hack - ensure that the stub .h file is included in the OPTIONS section
1627 # if the .hc file is saved.
1628 push (@File_options, "-#include \"${ofile_h_stub_target}\"\n");
1633 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
1634 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root) if ! $Only_preprocess_hc;
1637 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
1639 # save a copy of the .s file..
1640 &saveIntermediate($ifile_root , "s" , $cc_as) if ($do_as && $Keep_s_file_too);
1641 &runAs($as_out, $ifile_root) if $do_as;
1644 Finally, decide what to queue up for linker input.
1646 # tentatively assume we will eventually produce linker input:
1647 push(@Link_file, &odir_ify($ifile_root, 'o'));
1649 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
1651 if ( $ifile !~ /\.(lhs|hs|hc|c|s|a|S)$/ && $ifile !~ /_hc$/ ) {
1652 # There's sometimes confusion regarding .hi files; users
1653 # supplying them on the command line.
1654 if ( $ifile =~ /\.hi$/ ) {
1655 print STDERR "$Pgm: warning: found `$ifile' on command line; interface files should not be supplied here - ignoring it.\n";
1657 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n";
1659 # oops; we tentatively pushed the wrong thing; fix & do the right thing
1660 pop(@Link_file); push(@Link_file, $ifile);
1664 } # end of ProcessInputFile
1667 %************************************************************************
1669 \section[Driver-run-phases]{Routines to run the various phases}
1671 %************************************************************************
1675 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
1679 # Only add #line pragma if we're going to need it.
1680 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && " if ($Cpp_flag_set);
1681 $to_do .= "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
1683 push(@Files_to_tidy, $lit2pgm_hscpp );
1685 &run_something($to_do, 'literate pre-processor');
1691 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
1695 # Strictly speaking, echoing of the following line pragma is only required
1696 # on non-delit'ed input, as we've already added it during de-lit. However,
1697 # hscpp will then add a {-# LINE 1 "$lit2pgm_hsc" -} to the top of the file,
1698 # which is not very informative (but harmless). Hence, we uniformly have
1699 # {-# LINE 1 "$in_lit2pgm" #-} as the first line to all cpp'ed hsc input.
1701 $to_do = "echo '{-# LINE 1 \"$in_lit2pgm\" -}' > $hscpp_hsc && ";
1703 if ($HsCpp eq $Cat) {
1704 $to_do .= "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
1705 push(@Files_to_tidy, $hscpp_hsc );
1706 &run_something($to_do, 'Ineffective C pre-processor');
1708 local($includes) = '-I' . join(' -I',@Include_dir);
1709 $to_do .= "$HsCpp $Verbose @HsCpp_flags @HsSourceCppOpts $includes $lit2pgm_hscpp >> $hscpp_hsc";
1710 push(@Files_to_tidy, $hscpp_hsc );
1711 &run_something($to_do, 'Haskellised C pre-processor');
1714 if ( $Only_preprocess_C ) {
1715 $to_do = "$Cat $hscpp_hsc";
1716 &run_something($to_do, '');
1724 sub runHscAndProcessInterfaces {
1725 local($ifile, $hscpp_hsc, $ifile_root,
1726 $ofile_target, $hifile_target,
1727 $going_interactive) = @_;
1729 # $ifile is the original input file
1730 # $hscpp_hsc post-unlit, post-cpp, etc., input file
1731 # $ifile_root input filename minus suffix
1732 # $ofile_target the output file that we ultimately hope to produce
1733 # $hifile_target the .hi file ... (ditto)
1735 local($source_unchanged) = 1;
1737 # Check if the source file is up to date relative to the target; in
1738 # that case we say "source is unchanged" and let the compiler bail out
1739 # early if the import usage information allows it.
1741 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
1742 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
1744 # The informational messages below are now conditional on -v being set -- SOF
1745 if ( $ofile_target ne "_stdin.s" && ! -f $ofile_target ) {
1746 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n" if $Verbose;
1747 $source_unchanged = 0;
1750 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
1751 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
1753 if ( $hifile_target ne "_stdout" && ! -f $hifile_target ) {
1754 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n" if $Verbose;
1755 $source_unchanged = 0;
1758 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
1759 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
1761 if ( $ofile_target ne "_stdin.s" && $i_mtime > $o_mtime) {
1762 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n" if $Verbose;
1763 $source_unchanged = 0;
1766 # Tell the compiler which version we're using
1767 push(@HsC_flags, "-fhi-version=${ProjectVersionInt}");
1769 # So if source_unchanged is still "1", we pass on the good news to the compiler
1770 # The -recomp flag can disable this, forcing recompilation
1771 if ($Do_recomp_chkr && $source_unchanged) {
1772 push(@HsC_flags, '-fsource-unchanged');
1775 # Indicate whether we're static or not.
1776 # This will only ever
1777 push(@HsC_flags, '-static') if $Static;
1781 &runHsc($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive);
1783 # See if it bailed out early, saying nothing needed doing.
1784 # We work this out by seeing if it created an output .hi file
1786 if ( ! -f $hsc_hi && $ProduceHi !~ /-nohifile=/ ) {
1787 # Doesn't exist, so we bailed out early.
1788 # Tell the C compiler and assembler not to run
1789 $do_cc = 0; $do_as = 0;
1791 # Update dependency info, touch both object file and
1792 # interface file, so that the following invariant is
1795 # a dependent module's interface file should after recompilation
1796 # checking be newer than the interface files of its imports.
1798 # That is, if module A's interface file changes, then module B
1799 # (which import from A) needs to be checked.
1800 # If A's change does not affect B, which causes the compiler to bail
1801 # out early, we still need to touch the interface file of B. The reason
1802 # for this is that B may export A's interface.
1804 &run_something("touch $ofile_target",
1805 "Touch $ofile_target, to propagate dependencies") if $HscOut ne '-N=';
1806 &run_something("touch $hifile_target",
1807 "Touch $hifile_target, to propagate dependencies") if $ProduceHi =~ /-nohifile=/ ;
1811 # Didn't bail out early (new .hi file) so we thunder on
1813 # If non-interactive, heave in the consistency info at the end
1814 # NB: pretty hackish (depends on how $output is set)
1815 if ( ! $going_interactive ) {
1816 if ( $HscOut eq '-C=' ) {
1817 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
1819 } elsif ( $HscOut eq '-S=' ) {
1820 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
1821 $consist =~ s/,/./g;
1822 $consist =~ s/\//./g;
1823 $consist =~ s/-/_/g;
1824 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
1825 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
1827 &run_something($to_do, 'Pin on Haskell consistency info');
1831 # Interface-handling is important enough to live off by itself
1832 if ( $ProduceHi !~ /-nohifile=/ ) { # If we've produced one, process it.
1833 require('ghc-iface.prl') || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
1834 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
1836 # if we're going to split up object files,
1837 # we inject split markers into the .hc file now
1838 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
1839 &inject_split_markers ( $hsc_out );
1842 # save a copy of the .hc file, even if we are carrying on...
1843 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
1844 &saveIntermediate($ifile_root , "hc" , $hsc_out);
1854 local($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive) = @_;
1856 # prepend comma to HsP flags (so hsc can tell them apart...)
1857 foreach $a ( @HsP_flags ) { $a = ",$a" unless $a =~ /^,/; }
1859 &makeHiMap() unless $HiMapDone;
1860 push(@HsC_flags, "-himap=$HiIncludeString");
1862 # here, we may produce .hc/.s and/or .hi files
1863 local($output) = '';
1864 #@Files_to_tidy = ();
1866 if ( $going_interactive ) {
1867 # don't need .hi unless we're going to show it on stdout:
1868 $ProduceHi = '-nohifile=' if ! ($HiOnStdout || $Specific_hi_file ne '' );
1869 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
1872 # set up for producing output/.hi; note that flag twiddling
1873 # may mean that nothing will actually be produced:
1874 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out -F=$hsc_out_c_stub -FH=$hsc_out_h_stub";
1875 push(@Files_to_tidy, $hsc_hi, $hsc_out, $hsc_out_c_stub, $hsc_out_h_stub );
1877 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
1878 if ( $CollectingGCstats ) {
1879 push(@HsC_rts_flags, "-S$ifile_root.stat");
1880 push(@Files_to_tidy, "$ifile_root.stat");
1883 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
1884 # emit nofibbish time/bytes-alloc stats to stderr;
1885 # see later .stat file post-processing
1886 print STDERR "warning: both -Rgc-stats and -Rghc-timing used, -Rghc-timing wins." if $CollectingGCstats;
1887 push(@HsC_rts_flags, "-s$Tmp_prefix.stat");
1888 push(@Files_to_tidy, "$Tmp_prefix.stat");
1892 if ($Specific_dump_file ne '') {
1893 $dump = "2>> $Specific_dump_file";
1894 $Using_dump_file = 1;
1898 # Win32 only: If the command processor used by system()
1899 # exec()s the application as an ordinary Win32 executable,
1900 # we're in trouble here, since the command line is likely
1901 # to be > 255 chars long. To work around this situation,
1902 # $HsC also understands `at-files', i.e., `@file' on the
1903 # command line will cause $HsC to add the contents of `file'
1904 # to the command line.
1906 # [ Note: support for `at-files' is not compiled in by default ]
1907 $cmd_line_opts_via_at_file=0;
1908 if ($cmd_line_opts_via_at_file) {
1910 local($to_do_opts) = "$Tmp_prefix.opts";
1911 open(OPTS, "> $Tmp_prefix.opts") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.opts\n");
1912 print OPTS "$dump @HsC_flags $CoreLint $USPLint $StgLint $Verbose";
1914 $to_do = "$HsC @HsP_flags ,$hscpp_hsc \@$Tmp_prefix.opts $output +RTS @HsC_rts_flags";
1918 $to_do = "$HsC @HsP_flags ,$hscpp_hsc $dump @HsC_flags $CoreLint $USPLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
1920 &run_something($to_do, 'Haskell compiler');
1922 # finish business w/ nofibbish time/bytes-alloc stats
1923 &process_ghc_timings() if $CollectGhcTimings;
1927 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
1928 of (module-name, pathname) pairs, one per line, separated by a space.
1931 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1935 # collect in %HiMap; write later; also used elsewhere in driver
1937 local($mod, $path, $d, $e);
1939 # reset the global variables:
1941 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1943 foreach $d ( @Import_dir ) {
1944 if ($HiIncludeString) {
1945 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix}";
1947 $HiIncludeString = "$d%.${HiSuffix}";
1952 foreach $d ( @SysImport_dir ) {
1953 if ($HiIncludeString) {
1954 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix_prelude}";
1956 $HiIncludeString = "${d}%.${HiSuffix_prelude}";
1965 Invoke the 'linker' - either the standard linker or the one used to build
1971 local($libdirs) = '';
1973 # append last minute flags linker and consistency flags
1978 # glue them together:
1979 push(@UserLibrary_dir, @SysLibrary_dir);
1981 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1983 # for a linker, use an explicitly given one, or the going C compiler ...
1984 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1986 if ( ($Specific_output_file eq '') &&
1987 ($TargetPlatform eq 'i386-unknown-cygwin32') ) {
1988 $Specific_output_file = 'main.exe';
1989 print STDERR "Output file not specified, defaulting to \"main.exe\"\n";
1992 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1993 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1995 &prepareWin32DllLink(1);
1997 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $TopClosureFile $libdirs @UserLibrary @SysLibrary";
1998 &run_something($to_do, 'Linker');
2000 # finally, check the consistency info in the binary
2001 local($executable) = $Files_to_tidy[0];
2002 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
2005 # dynamically load consistency-chking code; then do it.
2006 require('ghc-consist.prl')
2007 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
2009 &chk_consistency_info ( $executable );
2012 # if PVM parallel stuff, we do truly weird things.
2013 # Essentially: (1) move the executable over to where PVM expects
2014 # to find it. (2) create a script in place of the executable
2015 # which will cause the program to be run, via SysMan.
2016 if ( $PARing eq 'p' ) {
2017 local($pvm_executable) = $executable;
2018 local($pvm_executable_base);
2020 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
2021 local($pwd) = `pwd`;
2023 $pwd =~ s/^\/tmp_mnt//;
2024 $pvm_executable = "$pwd/$pvm_executable";
2027 $pvm_executable =~ s|/|=|g; # make /s into =s
2028 $pvm_executable_base = $pvm_executable;
2030 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
2031 . "/$pvm_executable";
2033 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
2035 # OK, now create the magic script for "$executable"
2036 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
2037 print EXEC <<EOSCRIPT1;
2038 eval 'exec perl -S \$0 \${1+"\$@"}'
2039 if \$running_under_some_shell;
2040 # =!=!=!=!=!=!=!=!=!=!=!
2041 # This script is automatically generated: DO NOT EDIT!!!
2042 # Generated by Glasgow Haskell, version ${ProjectVersion} ${ProjectPatchLevel}
2044 \$pvm_executable = '$pvm_executable';
2045 \$pvm_executable_base = '$pvm_executable_base';
2046 \$SysMan = '$SysMan';
2049 print EXEC <<\EOSCRIPT2;
2050 # first, some magical shortcuts to run "commands" on the binary
2052 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
2054 system("$cmd $pvm_executable");
2058 # OK, really run it; process the args first
2059 $ENV{'PE'} = $pvm_executable_base;
2061 $nprocessors = 2; # the default
2065 # ToDo: handle --RTS
2066 args: while ($a = shift(@ARGV)) {
2067 if ( $a eq '+RTS' ) {
2069 } elsif ( $a eq '-RTS' ) {
2072 if ( $a eq '-d' && $in_RTS_args ) {
2074 } elsif ( $a =~ /^-N(\d+)/ && $in_RTS_args ) {
2077 push(@nonPVM_args, $a);
2081 local($return_val) = 0;
2082 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
2084 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
2087 close(EXEC) || die "Failed closing $executable\n";
2088 chmod 0755, $executable;
2092 sub createWin32DLL()
2096 # append last minute flags linker and consistency flags
2101 # glue them together:
2102 push(@UserLibrary_dir, @SysLibrary_dir);
2104 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
2106 &prepareWin32DllLink(0);
2108 local ($bld_dll) = "dllwrap";
2110 local ($output) = ($Specific_output_file ne '') ? "$Specific_output_file" : 'HSdll.dll';
2111 local ($output_dir);
2112 local ($output_file);
2113 local ($output_lib, $output_def);
2115 ($output_dir = $output) =~ s|(.*/)[^/]+$|$1|;
2116 $output_dir = "" if ($output_dir eq $output);
2117 ($output_file = $output) =~ s|.*/([^/]+)$|$1|;
2119 ($output_lib = $output_file) =~ s|(.+)\.[^\.]*$|${output_dir}lib$1_imp.a|;
2120 ($output_def = $output_file) =~ s|(.+)\.[^\.]*$|${output_dir}$1.def|;
2122 push (@Dll_flags, "-mno-cygwin --target=i386-mingw32") if ($TargetPlatform =~ /^.*mingw32$/);
2123 push (@Dll_flags, "--output-lib $output_lib");
2124 # If the "--def " option hasn't been supplied, assume everything
2125 # is going to be exported via the DLL.."
2126 if (!grep(/--def/, @Dll_flags)) {
2127 push (@Dll_flags, "--export-all --output-def $output_def");
2130 local($to_do) = "$bld_dll @Dll_flags -o $output @Link_file $libdirs @UserLibrary @SysLibrary";
2131 # Make sure the user sees this piece of magic.
2132 print STDERR "$to_do\n" if (!$Verbose);
2133 &run_something($to_do, 'DLL creator');
2136 sub prepareWin32DllLink ()
2138 local($linking_main) = @_;
2141 # Win32 DLLs - link with import libraries, not the real archives.
2143 if ( $TargetPlatform =~ /-mingw32$/ ) {
2146 # If the libraries have the form libHSfoo.a, we
2147 # transform that into libHSfoo_imp.a - the import
2148 # library of the DLL.
2150 foreach $a ( @SysLibrary ) {
2151 $a = "${a}_imp" if ($a =~ /^-lHS/);
2153 foreach $a ( @UserLibrary ) {
2154 $a = "${a}_imp" if ($a =~ /^-lHS/);
2156 push(@Link_file, ( $INSTALLING ) ? "$InstLibDirGhc/Main.o"
2157 : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/Main.o") if $linking_main;
2158 push(@Link_file, ( $INSTALLING ) ? "$InstLibDirGhc/PrelMain.o"
2159 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/PrelMain.o") if $linking_main;
2161 push(@Ld_flags, "-mno-cygwin");
2167 %************************************************************************
2169 \section[Driver-misc-utils]{Miscellaneous utilities}
2171 %************************************************************************
2173 %************************************************************************
2175 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
2177 %************************************************************************
2181 local($ofile,$def_suffix) = @_;
2183 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
2187 local($orig_file, $def_suffix) = @_;
2188 if ($Specific_output_dir eq '') { # do nothing
2189 &osuf_ify($orig_file, $def_suffix);
2191 local ($orig_file_only);
2192 ($orig_file_only = $orig_file) =~ s|.*/||;
2193 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
2200 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
2202 local($includes) = '-I' . join(' -I', @Include_dir);
2205 local($c_flags) = "@CcBoth_flags";
2206 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2208 $c_flags .= " -mno-cygwin" if ( $TargetPlatform =~ /-mingw32$/ );
2210 # "input" files to use that are not in some weird directory;
2211 # to help C compilers grok .hc files [ToDo: de-hackify]
2212 local($cc_help) = "ghc$$.c";
2213 local($cc_help_s) = "ghc$$.s";
2216 $s_output = (($is_hc_file && $DoAsmMangling) || $TargetPlatform =~ /^(powerpc|rs6000|hppa)/) ? $cc_as_o : $cc_as;
2217 $c_flags .= " @CcRegd_flags";
2218 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2220 # C compiler won't like the .hc extension. So we create
2221 # a tmp .c file which #include's the needful.
2222 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2223 if ( $is_hc_file ) {
2227 # user may have asked for #includes to be injected...
2228 print TMP @CcInjects if $#CcInjects >= 0;
2230 # Straight .c files may want to know that they're being used
2231 # with a particular version of GHC, so we define __GLASGOW_HASKELL__ for their benefit.
2232 print TMP "#define __GLASGOW_HASKELL__ ${ProjectVersionInt}\n";
2234 # heave in the consistency info
2235 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2237 print TMP "#include \"$hsc_out\"\n";
2238 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2240 # Don't redirect stderr into intermediate file if slamming output onto stdout (e.g., with -E)
2241 local($fuse_stderr) = "2>&1" if ! $Only_preprocess_hc;
2242 local($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 )";
2244 if ( $Only_preprocess_hc ) { # HACK ALERT!
2245 $to_do =~ s/ -S\b//g;
2247 push(@Files_to_tidy, $cc_help, $cc_help_s, $s_output );
2248 $PostprocessCcOutput = 1 if ! $Only_preprocess_hc; # hack, dear hack...
2249 &run_something($to_do, 'C compiler');
2250 $PostprocessCcOutput = 0;
2251 if ( $Only_preprocess_hc ) {
2252 system("$Cat $Tmp_prefix.ccout");
2254 unlink($cc_help, $cc_help_s);
2260 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2262 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2264 if ($is_hc_file && $DoAsmMangling) {
2265 # dynamically load assembler-fiddling code, which we are about to use:
2266 require('ghc-asm.prl')
2267 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2268 # post-process the assembler [.hc files only]
2269 &mangle_asm($cc_as_o, $cc_as);
2271 } elsif ($TargetPlatform =~ /^hppa/) {
2272 # minor mangling of non-threaded files for hp-pa only
2273 require('ghc-asm.prl')
2274 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2275 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2277 } elsif ($TargetPlatform =~ /^powerpc|^rs6000/) {
2278 # minor mangling of non-threaded files for powerpcs and rs6000s
2279 require('ghc-asm.prl')
2280 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-powerpc.prl!\n");
2281 &mini_mangle_asm_powerpc($cc_as_o, $cc_as);
2284 # save a copy of the .s file, even if we are carrying on...
2285 #if ($do_as && $Keep_s_file_too) {
2286 # &saveIntermediate($ifile_root , "s" , $cc_as);
2293 local($as_out, $ifile_root) = @_;
2295 local($asmblr) = ( $As ) ? $As : $CcRegd;
2297 # need to add the -I flags in case the file is going through cpp (.S files)
2298 local($includes) = '-I' . join(' -I', @Include_dir);
2300 if ( ! $SplitObjFiles ) {
2301 local($to_do) = "$asmblr -o $as_out -c @As_flags $includes $cc_as";
2302 push(@Files_to_tidy, $as_out );
2303 &run_something($to_do, 'Unix assembler');
2305 } else { # more complicated split-ification...
2307 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2309 # If -odir is used, great, just pin it in front of the
2310 # generated split file names. If it hasn't been set, we
2311 # snatch it from the ifile_root.
2315 if ( $Specific_output_dir eq '' ) {
2316 $Specific_output_dir = ${ifile_root};
2319 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2320 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2321 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2322 push(@Files_to_tidy, $split_out );
2324 &run_something($to_do, 'Unix assembler');
2330 %************************************************************************
2332 \subsection[Driver-run-something]{@run_something@: Run a phase}
2334 %************************************************************************
2338 local($str_to_do, $tidy_name) = @_;
2340 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2341 print STDERR "$str_to_do\n" if $Verbose;
2343 if ($Using_dump_file) {
2344 open(DUMP, ">> $Specific_dump_file")
2345 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2346 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2348 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2351 local($return_val) = 0;
2353 if ( length($str_to_do) > 4000) {
2354 # 4000 - on the random side, just like the *real* ARG_MAX
2357 # With some shells, command lines of this length may
2358 # very well cause trouble. To safeguard against this, we squirrel the
2359 # command into a file and exec that.
2360 local ($sh) = $ENV{'REAL_SHELL'};
2361 print STDERR "Backup plan A: saving cmd line in ${Tmp_prefix}.sh and executing that with $sh\n" if $Verbose;
2362 open (TEMP, "> ${Tmp_prefix}.sh") ||
2363 &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.sh'\n");
2364 print TEMP "$Time $str_to_do\n";
2366 &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.sh'\n");
2367 system("$sh $Tmp_prefix.sh");
2370 unlink "${Tmp_prefix}.sh";
2372 system("$Time $str_to_do");
2376 if ( $PostprocessCcOutput ) { # hack, continued
2377 open(CCOUT, "< $Tmp_prefix.ccout")
2378 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2380 next if /call-clobbered/;
2381 next if /control reaches end/;
2382 next if /from .*Stg\.h:/;
2383 next if /from ghc\d+.c:\d+:/;
2384 next if /: At top level:$/;
2385 next if /: In function \`.*\':$/;
2386 next if /\`ghc_cc_ID\' defined but not used/;
2389 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2392 if ($return_val != 0) {
2393 if ($Using_dump_file) {
2394 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2396 &tidy_up_and_die($return_val, '');
2398 $Using_dump_file = 0;
2402 %************************************************************************
2404 \subsection[Driver-ghc-timing]{Emit nofibbish GHC timings}
2406 %************************************************************************
2408 NB: nearly the same as in @runstdtest@ script.
2411 sub process_ghc_timings {
2412 local($StatsFile) = "$Tmp_prefix.stat";
2413 local($SysSpecificTiming) = 'ghc';
2415 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2416 local($max_live) = 0;
2417 local($tot_live) = 0; # for calculating residency stuff
2418 local($tot_samples) = 0;
2421 if (! /Gen:\s+0/ && ! /Minor/ && /^\s*\d+\s+\d+\s+(\d+)\s+\d+\.\d+/ ) {
2422 $max_live = $1 if $max_live < $1;
2426 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2428 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2429 $MaxResidency = $1; $ResidencySamples = $2;
2432 $GCs = $1 if /^\s*([0-9,]+) (collections? in generation 0|garbage collections? performed)/;
2434 if ( /^\s+([0-9]+)\s+Mb total memory/ ) {
2438 # The presence of -? in the following pattern is only there to
2439 # accommodate 0.29 && <= 2.05 RTS'
2440 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*-?(\d+\.\d\d)s elapsed\)/ ) {
2441 $InitTime = $1; $InitElapsed = $2;
2442 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2443 $MutTime = $1; $MutElapsed = $2;
2444 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2445 $GcTime = $1; $GcElapsed = $2;
2448 close(STATS) || die "Failed when closing $StatsFile\n";
2449 if ( $tot_samples > 0 ) {
2450 $ResidencySamples = $tot_samples;
2451 $MaxResidency = $max_live;
2452 $AvgResidency = int ($tot_live / $tot_samples) ;
2455 # warn about what we didn't find
2456 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2457 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2458 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2459 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2460 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2461 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2462 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2463 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2465 # things we didn't necessarily expect to find
2466 $MaxResidency = 0 unless defined($MaxResidency);
2467 $AvgResidency = 0 unless defined($AvgResidency);
2468 $ResidencySamples = 0 unless defined($ResidencySamples);
2471 $BytesAlloc =~ s/,//g;
2472 $MaxResidency =~ s/,//g;
2474 $InitTime =~ s/,//g;
2475 $InitElapsed =~ s/,//g;
2477 $MutElapsed =~ s/,//g;
2479 $GcElapsed =~ s/,//g;
2481 # print out what we found
2482 print STDERR "<<$SysSpecificTiming: ",
2483 "$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)",
2484 " :$SysSpecificTiming>>\n";
2491 %************************************************************************
2493 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2495 %************************************************************************
2499 local($to_do) = "\n$Rm $Tmp_prefix*";
2500 if ( $Tmp_prefix !~ /^\s*$/ ) {
2501 print STDERR "$to_do\n" if $Verbose;
2506 sub tidy_up_and_die {
2507 local($return_val, $msg) = @_;
2509 # delete any files to tidy
2510 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2511 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2515 exit (($return_val == 0) ? 0 : 1);
2519 %************************************************************************
2521 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2523 %************************************************************************
2525 Some command-line arguments take an argument, e.g.,
2526 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2527 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2528 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2530 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2531 gobble the second argument (and probably set the heapsize to something
2535 local(*Args, $option, $rest_of_arg) = @_;
2537 if ($rest_of_arg ne '') {
2538 return($rest_of_arg);
2539 } elsif ($#Args >= 0) {
2540 local($temp) = $Args[0]; shift(@Args);
2543 print STDERR "$Pgm: no argument following $option option\n";
2554 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2556 foreach $f ( @HsC_antiflags ) {
2557 return(0) if $flag eq $f;
2559 # foreach $f ( @HsC_flags ) {
2560 # return(0) if $flag eq $f;
2565 sub squashHscFlag { # pretty terrible
2569 foreach $f ( @HsC_flags ) {
2570 if ($flag eq $f) { $f = ''; }
2578 foreach $f ( @flags ) {
2579 push( @HsC_flags, $f ) if &isntAntiFlag($f);
2584 To add another system library, you'll need to augment the
2585 Supported_syslibs variable with name and info on your addition
2586 to the syslib family. The info bit consist of the following:
2588 - interface file directory
2589 see the misc or posix entry for how to distinguish
2590 between using installed and build tree directories.
2592 - directory location of archives
2594 - location of (way-independent) C support libs.
2595 not all libraries need this - if you don't, just
2596 give the empty string.
2597 - list of syslibs you depend on.
2599 - additional ghc command line flags that should be used.
2600 - additional C compiler command line flags that should be used.
2606 # Hash to keep track of
2607 %Syslibs_added = ();
2610 local($syslib) = @_;
2612 # Lifting this out of this sub brings it out of scope - why??
2613 %Supported_syslibs =
2615 [ # where to slurp interface files from
2617 ? "$InstLibDirGhc/imports/exts"
2618 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/exts"
2620 , # where to find the archive to use when linking
2623 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/exts"
2626 , '' # Syslib dependencies
2627 , '' # extra ghc opts
2628 , '' # extra cc opts
2629 , '' # extra ld opts
2633 [ # where to slurp interface files from
2635 ? "$InstLibDirGhc/imports/misc"
2636 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc"
2638 , # where to find the archive to use when linking
2641 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc"
2643 , # where to find the cbits archive to use when linking
2646 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc/cbits"
2648 , 'exts' # Syslib dependencies
2649 , '' # extra ghc opts
2650 , '' # extra cc opts
2651 , ( $TargetPlatform =~ /-solaris2$/ ? '-lnsl -lsocket' : '')
2654 [ # where to slurp interface files from
2656 ? "$InstLibDirGhc/imports/hbc"
2657 : "$TopPwd/CONTRIB/libraries/hbc/src"
2659 , # where to find the archive to use when linking
2662 : "$TopPwd/CONTRIB/libraries/src/hbc"
2664 , # where to find the cbits archive to use when linking
2667 : "$TopPwd/CONTRIB/libraries/hbc/cbits"
2669 , 'exts' # Syslib dependencies
2670 , '' # extra ghc opts
2671 , '' # extra cc opts
2675 [ # where to slurp interface files from
2677 ? "$InstLibDirGhc/imports/posix"
2678 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix"
2680 , # where to find the archive to use when linking
2683 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix"
2685 , # where to find the cbits archive to use when linking
2688 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix/cbits"
2690 , 'misc' # Syslib dependencies
2691 , '' # extra ghc opts
2692 , '' # extra cc opts
2693 , '' # extra ld opts
2696 [ # where to slurp interface files from
2698 ? "$InstLibDirGhc/imports/concurrent"
2699 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent"
2701 , # where to find the archive to use when linking
2704 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent"
2706 , '' # where to find the cbits archive to use when linking
2707 , '' # Syslib dependencies
2708 , '' # extra ghc opts
2709 , '' # extra cc opts
2710 , '' # extra ld opts
2713 [ # where to slurp interface files from
2715 ? "$InstLibDirGhc/imports/win32"
2716 : "$TopPwd/hslibs/win32/src"
2718 , # where to find the archive to use when linking
2721 : "$TopPwd/hslibs/win32/src"
2724 , 'exts' # Syslib dependencies
2725 , '' # extra ghc opts
2726 , '' # extra cc opts
2727 , '-luser32 -lgdi32' # extra ld opts
2730 [ # where to slurp interface files from
2732 ? "$InstLibDirGhc/imports/com"
2733 : "$TopPwd/hdirect/lib"
2735 , # where to find the archive to use when linking
2738 : "$TopPwd/hdirect/lib"
2741 , 'exts' # Syslib dependencies
2742 , '' # extra ghc opts
2743 , '' # extra cc opts
2744 , '-luser32 -lole32 -loleaut32 -ladvapi32'
2749 # check if it's supported..
2751 if ( !exists $Supported_syslibs{$syslib} ) {
2752 print STDERR "$Pgm: no such system library (-syslib): $syslib\n";
2757 # This check is here to avoid syslib loops from
2758 # spoiling the party. A side-effect of it is that
2759 # it disallows multiple mentions of a syslib on a command-line,
2760 # explicit *and* implicit ones (i.e., "-syslib exts -syslib misc"
2761 # is not equal to "-syslib exts -syslib misc -syslib exts",
2762 # which it needs to be)
2764 # Since our current collection of syslibs don't have any
2765 # loops, this test is disabled.
2767 # ToDo: loop avoidance scheme when the need arises
2769 #return if ( exists $Syslibs_added{$syslib} );
2771 $Syslibs_added{$syslib} = 1;
2773 local ($hi_dir, $lib_dir, $lib_cbits_dir,
2774 $syslib_deps, $syslib_ghc_opts,
2775 $syslib_cc_opts, $syslib_ld_opts) = @{ $Supported_syslibs{$syslib} };
2778 unshift(@SysImport_dir, $hi_dir);
2779 push(@SysLibrary_dir, $lib_dir);
2780 push(@SysLibrary_dir, $lib_cbits_dir) if ( $lib_cbits_dir ne '');
2782 push(@SysLibrary, "-lHS$syslib");
2783 push(@SysLibrary, "-lHS${syslib}_cbits") if ( $lib_cbits_dir ne '');
2784 push(@SysLibrary, $syslib_ld_opts) if ($syslib_ld_opts ne '');
2786 # Add on any extra dependencies.
2787 foreach $lib (split(' ',$syslib_deps)) {
2793 Source files may have {-# OPTIONS ... #-} pragmas at the top, containing
2794 command line options we want to append to collection of commands specified
2795 directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell
2796 file for any such pragmas:
2799 sub check_for_source_options {
2800 local($file,$ifile) = @_;
2801 local($comment_start,$comment_end);
2803 if ($ifile =~ /\.hc$/ ||
2806 $ifile =~ /_s$/ ) { # `Real' C intermediate
2807 $comment_start = "/\\*";
2808 $comment_end = "\\*/";
2809 } else { # Assume it is a file containing Haskell source
2810 $comment_start = "{-#";
2811 $comment_end = "#-}";
2814 open(FILE,$file) || return(1); # No big loss
2817 if ( /^${comment_start} OPTIONS (.*)${comment_end}$/ ) {
2818 # add the options found at the back of the command line.
2819 local(@entries) = split(/\s+/,$1);
2820 print STDERR "Found OPTIONS " . join(' ',@entries) . " in $file\n" if $Verbose;
2821 push(@File_options, @entries);
2823 elsif ( /^$/ ) { # ignore empty lines
2826 elsif ( /^#line.+$/ ) { # ignore comment lines (unused..ToDo: rm )
2829 elsif ( /^{-# LINE.+$/ ) { # ignore line pragmas
2832 else { # stop looking, something non-empty / not
2833 # ${comment_start} OPTIONS .. ${comment_end} encountered.
2834 close(FILE);return(0);
2843 We split the initial argv up into three arrays:
2849 the reason for doing so is to be able to deal
2850 with {-# OPTIONS #-} pragma in source files properly.
2856 arg: while($_ = $args[0]) {
2858 # sigh, we have to deal with these -option arg specially here.
2859 /^-(tmpdir|odir|ohi|o|isuf|osuf|hisuf|odump|syslib)$/ &&
2860 do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; };
2861 /^--?./ && do { push(@Cmd_opts, $_); next arg; };
2863 if (/\.([^_]+_)?[oa]$/) {
2864 push(@Link_file, $_);
2866 push(@Input_file, $_);
2869 # input files must exist:
2871 print STDERR "$Pgm: input file doesn't exist: $_\n";
2879 When saving an intermediate file (.hc or .s) away, we
2880 have to prefix any OPTIONS found in the original source file.
2883 sub saveIntermediate {
2884 local ($final,$suffix,$tmp)= @_ ;
2887 # $final -- root of where to park ${final}.${suffix}
2888 # $tmp -- temporary file where hsc put the intermediate file.
2890 # Delete the old file
2891 $to_do = "$Rm ${final}.${suffix}"; &run_something($to_do, "Removing old .${suffix} file");
2893 if ( $#File_options >= 0 ) { # OPTIONS found in Haskell source unit
2894 # Add OPTION comment to the top of the generated .${suffix} file
2895 open(TEMP, "> ${final}.${suffix}") || &tidy_up_and_die(1,"Can't open ${final}.${suffix}\n");
2896 print TEMP "/* OPTIONS " . join(' ',@File_options) . " */\n";
2898 print STDERR "Prepending OPTIONS: " . join(' ',@File_options) . " to ${final}.${suffix}\n" if $Verbose;
2900 $to_do = "$Cat $tmp >> ${final}.${suffix}";
2901 &run_something($to_do, "Saving copy of .${suffix} file");
2908 Command-line processor
2914 # can't use getopt(s); what we want is too complicated
2916 arg: while($_ = $Args[0]) {
2919 #---------- help -------------------------------------------------------
2920 if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; }
2922 #-----------version ----------------------------------------------------
2923 /^--version$/ && do { print STDERR "${ProjectName}, version ${ProjectVersion}, patchlevel ${ProjectPatchLevel}\n"; exit $Status; };
2925 #---------- verbosity and such -----------------------------------------
2926 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
2928 #---------- what phases are to be run ----------------------------------
2929 /^-(no-)?recomp/ && do { $Do_recomp_chkr = ($1 eq '') ? 1 : 0; next arg; };
2931 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
2932 # change the global default:
2933 # we won't run cat; we'll run the real thing
2935 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
2937 # stop after generating C
2939 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
2940 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
2942 # leave out actual C generation (debugging) [also turns off interface gen]
2945 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
2946 # _do_ generate an interface; usually used as: -noC -hi
2947 /^-hi-with-(.*)$/ && do { $HiOnStdout = 1; $HiWith .= " $1" ; $ProduceHi = '-hifile='; next arg; };
2948 # limit ourselves to outputting a particular section.
2950 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
2951 # don't generate an interface (even if generating C)
2953 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
2954 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
2955 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
2956 /^-keep-hi-diffs$/ && do { $Keep_HiDiffs = 1; next arg; };
2958 # show/disable diffs if the interface file changes
2960 /^-E$/ && do { push(@CcBoth_flags, '-E');
2961 $Only_preprocess_C = 1;
2962 $Do_as = 0; $Do_lnkr = 0; next arg; };
2963 # stop after preprocessing C
2964 /^-M$/ && do { $Only_generate_deps = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2965 # only generate dependency information.
2966 /^--mk-dll$/ && do { $Only_generate_dll = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2967 # Build a Win32 DLL (where supported).
2968 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
2969 # stop after generating assembler
2971 /^-c$/ && do { $Do_lnkr = 0; next arg; };
2972 # stop after generating .o files
2974 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
2975 # don't do consistency-checking after a link
2976 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
2978 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', '');
2979 $Tmp_prefix = "$Tmp_prefix/ghc$$";
2980 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
2982 # use an alternate directory for temp files
2984 #---------- redirect output --------------------------------------------
2986 # -o <file>; applies to the last phase, whatever it is
2987 # "-o -" sends it to stdout
2988 # if <file> has a directory component, that dir must already exist
2990 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', '');
2992 # Hack, of the worst sort: don't do validation of
2993 # odir argument if you're using -M (dependency generation).
2995 if ( ! $Only_generate_deps && ! -d $Specific_output_dir) {
2996 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
3001 /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', '');
3002 if ($Specific_output_file ne '-'
3003 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
3004 local($dir_part) = $1;
3005 if (! -d $dir_part) {
3006 print STDERR "$Pgm: no such directory: $dir_part\n";
3012 # NB: -isuf not documented yet (because it doesn't work yet)
3013 /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', '');
3014 if ($Isuffix =~ /\./ ) {
3015 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
3020 /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', '');
3021 if ($Osuffix =~ /\./ ) {
3022 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
3027 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
3028 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', '');
3029 if ($Specific_hi_file ne '-'
3030 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
3031 local($dir_part) = $1;
3032 if (! -d $dir_part) {
3033 print STDERR "$Pgm: no such directory: $dir_part\n";
3037 $ProduceHi='-hifile=';
3040 # The suffix to use when looking for interface files
3041 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', '');
3042 if ($HiSuffix =~ /\./ ) {
3043 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
3047 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', '');
3048 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
3049 local($dir_part) = $1;
3050 if (! -d $dir_part) {
3051 print STDERR "$Pgm: no such directory: $dir_part\n";
3057 #-------------- scc & Profiling Stuff ----------------------------------
3059 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
3061 /^-auto-dicts$/ && do {
3062 $PROFdicts = '-fauto-sccs-on-dicts';
3064 /^-auto-all$/ && do {
3065 $PROFauto = '-fauto-sccs-on-all-toplevs';
3068 $PROFauto = '-fauto-sccs-on-exported-toplevs';
3071 /^-caf-all/ && do { # generate individual CAF SCC annotations
3072 $PROFcaf = '-fauto-sccs-on-individual-cafs';
3075 /^-ignore-scc$/ && do {
3076 # forces ignore of scc annotations even if profiling
3077 $PROFignore_scc = '-W';
3080 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
3083 /^-unprof-scc-auto/ && do {
3084 # generate auto SCCs on top level bindings when not profiling.
3085 # Used to measure optimisation effects of presence of sccs.
3086 $UNPROFscc_auto = ( /-all/ )
3087 ? '-fauto-sccs-on-all-toplevs'
3088 : '-fauto-sccs-on-exported-toplevs';
3091 #--------- ticky/parallel ----------------------------------------------
3092 # we sort out the details a bit later on
3094 /^-gransim$/ && do { $GRANing = 'g'; &add_syslib('concurrent'); next arg; }; # GranSim
3095 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
3096 /^-parallel$/ && do { $PARing = 'p'; &add_syslib('concurrent'); next arg; }; # parallel Haskell
3098 #-------------- "user ways" --------------------------------------------
3100 (/^-user-setup-([a-oA-Z])$/ ) &&
3102 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
3104 local($stuff) = $UserSetupOpts{$BuildTag};
3105 local(@opts) = split(/\s+/, $stuff);
3107 # feed relevant ops into the arg-processing loop (if any)
3108 unshift(@Args, @opts) if $#opts >= 0;
3112 #---------- set search paths for libraries and things ------------------
3114 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
3115 # prepends the items to the list); -I is for including C .h files.
3117 /^-i$/ && do { @Import_dir = (); # import path cleared!
3118 @SysImport_dir = ();
3119 print STDERR "WARNING: import paths cleared by `-i'\n";
3122 /^-i(.*)/ && do { local(@new_items)
3123 = split( /:/, &grab_arg_arg(*Args,'-i', $1));
3124 unshift(@Import_dir, @new_items);
3127 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; };
3128 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; };
3129 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; };
3131 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1);
3132 &add_syslib($syslib);
3135 #=======================================================================
3136 # various flags that we can harmlessly send to one program or another
3137 # (we will later "reclaim" some of the compiler ones now sent to gcc)
3138 #=======================================================================
3140 #---------- this driver itself (ghc) -----------------------------------
3141 # these change what executable is run for each phase:
3142 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
3143 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
3144 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
3145 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
3146 /^-pgma(.*)$/ && do { $As = $1; next arg; };
3147 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
3148 /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; };
3150 #---------- the get-anything-through opts (all pgms) -------------------
3151 # these allow arbitrary option-strings to go to any phase:
3152 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
3153 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
3154 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
3155 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
3156 /^-optp(.*)$/ && do { push(@HsP_flags, $1); next arg; };
3157 /^-optcpp(.*)$/ && do { push(@Cpp_define, $1); $Only_preprocess_hc = ($1 eq "-E"); next arg; };
3158 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
3159 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
3160 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
3161 /^-optdll(.*)$/ && do { push(@Dll_flags, $1); next arg; };
3162 /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; };
3164 #---------- Haskell C pre-processor (hscpp) ----------------------------
3165 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; };
3166 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; };
3168 #---------- post-Haskell "assembler"------------------------------------
3169 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
3170 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
3172 #---------- Haskell compiler (hsc) -------------------------------------
3174 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
3175 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
3177 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
3178 /^-fignore-asserts$/ && do { push(@HsC_flags, $_); next arg; };
3180 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
3183 # have the compiler proper generate concurrent code,
3184 # really only used when you want to configure your own
3185 # special user compilation way.
3187 # (ditto for -fgransim, fscc-profiling, -fparallel and -fticky-ticky)
3189 /^-fscc-profiling$/ && do { push(@HsC_flags,$_); next arg; };
3190 /^-fticky-ticky$/ && do { push(@HsC_flags,$_); next arg; };
3191 /^-fgransim$/ && do { push(@HsC_flags,$_); next arg; };
3192 /^-fparallel$/ && do { push(@HsC_flags,$_); next arg; };
3194 /^-split-objs$/ && do {
3195 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|rs6000|sparc)-/ ) {
3197 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
3202 push(@HsC_flags, "-fglobalise-toplev-names");
3203 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
3205 require('ghc-split.prl')
3206 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
3210 /^-unreg$/ && do { $UNREGing = 'u'; next arg; };
3211 /^-funregisterised$/ && do { push(@HsC_flags, $_); next arg; };
3212 /^-fno-asm-mangling$/ && do { $DoAsmMangling = 0; next arg; };
3214 /^-fallow-overlapping-instances$/ && do { push(@HsC_flags, $_); next arg; };
3215 /^-fallow-undecidable-instances$/ && do { push(@HsC_flags, $_); next arg; };
3217 && do { push(@HsC_flags, $_);
3218 push(@HsP_flags, '-N');
3220 # -fglasgow-exts implies -syslib exts
3221 &add_syslib('exts');
3226 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
3227 /^-fno-speciali[sz]e$/
3228 && do { $Oopt_DoSpecialise = ''; next arg; };
3231 && do { $Oopt_UsageSPInf = '-fusagesp';
3232 push (@HsC_flags, '-fusagesp-on'); next arg; };
3234 /^-fcompiling-prelude$/ && do { $CompilingPrelude=1; push(@HsC_flags, $_); next arg; };
3236 # Now the foldr/build options, which are *on* by default (for -O).
3239 && do { $Oopt_FoldrBuild = 1;
3240 $Oopt_FB_Support = '-fdo-arity-expand';
3244 /^-fno-foldr-build$/
3245 && do { $Oopt_FoldrBuild = 0;
3246 $Oopt_FB_Support = '';
3249 /^-fno-foldr-build-rule$/
3250 && do { $Oopt_FoldrBuild = 0;
3253 /^-fno-enable-tech$/
3254 && do { $Oopt_FB_Support = '';
3257 /^-fno-snapback-to-append$/
3258 && do { $Oopt_FoldrBuildInline .= ' -fdo-not-fold-back-append ';
3261 # --------------- Renamer -------------
3264 /^-fno-prune-tydecls$/ && do { push(@HsC_flags, $_); next arg; };
3265 /^-fno-prune-instdecls$/ && do { push(@HsC_flags, $_); next arg; };
3269 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
3270 /^-fvia-[cC]$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
3275 && do { push(@HsC_flags, $_); next arg };
3277 /^-funfold-casms-in-hi-file$/
3278 && do { push(@HsC_flags, $_); next arg };
3280 /^(-fmax-simplifier-iterations)(.*)$/
3281 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2);
3284 /^-fno-pedantic-bottoms$/
3285 && do { $Oopt_PedanticBottoms = ''; next arg; };
3287 /^-fno-pre-inlining$/
3288 && do { push(@HsC_flags, $_); next arg };
3290 /^-fdo-monad-eta-expansion$/
3291 && do { $Oopt_MonadEtaExpansion = $_; next arg; };
3293 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
3294 && do { push(@HsC_flags, $_); next arg; };
3296 /^-funbox-strict-fields$/
3297 && do { push(@HsC_flags, $_); next arg; };
3299 # --------------- Warnings etc. ------
3301 /^-fwarn-(.*)$/ && do { push(@HsC_flags, $_); next arg; };
3303 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
3304 &squashHscFlag("-f$1");
3307 /^-W$/ && do { push(@HsC_flags, @MinusWOpts); next arg; };
3308 /^-Wall$/ && do { push(@HsC_flags, @MinusWallOpts); next arg; };
3309 /^(-Wnot|w)$/ && do { foreach (@Hsc_flags) {
3310 /^-fwarn-(.*)$/ && do { $_=''; };
3312 push(@HsC_antiflags, @StandardWarnings);
3315 # --------------- fun stuff ----------------
3317 /^-freport-compile$/ && do { push(@HsC_flags, $_); next arg; };
3319 # --------------- platform specific flags (for gcc mostly) ----------------
3321 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes,
3322 # for 2.6.x..?, does not apply for 2.7.2
3324 unshift(@CcBoth_flags, ( $_ ));
3327 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
3328 && do { # for GCC for SPARCs
3329 unshift(@CcBoth_flags, ( $_ ));
3332 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
3333 $StolenX86Regs = $1;
3336 #*************** ... and lots of debugging ones (form: -d* )
3338 # -d(no-)core-lint is done this way so it is turn-off-able.
3339 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
3340 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
3341 # Ditto for USP lint
3342 /^-dusagesp-lint/ && do { $USPLint = '-dusagesp-lint'; next arg; };
3343 /^-dno-usagesp-lint/ && do { $USPLint = ''; next arg; };
3344 # Ditto for STG lint
3345 /^-dstg-lint/ && do { $StgLint = '-dstg-lint'; next arg; };
3346 /^-dno-stg-lint/ && do { $StgLint = ''; next arg; };
3348 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
3349 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
3350 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
3351 /^-dshow-rn-stats/ && do { push(@HsC_flags, $_); next arg; };
3352 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
3353 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
3354 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
3355 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
3357 #*************** ... and now all these -R* ones for its runtime system...
3359 /^-Rscale-sizes?(.*)/ && do {
3360 $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1);
3363 /^(-H|-Rmax-heapsize)(.*)/ && do {
3364 local($heap_size) = &grab_arg_arg(*Args,$1, $2);
3365 if ($heap_size =~ /(\d+)[Kk]$/) {
3366 $heap_size = $1 * 1000;
3367 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
3368 $heap_size = $1 * 1000 * 1000;
3369 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
3370 $heap_size = $1 * 1000 * 1000 * 1000;
3372 if ($heap_size <= 0) {
3373 print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n";
3374 $Specific_heap_size = 0;
3376 # if several heap sizes given, take the largest...
3377 } elsif ($heap_size >= $Specific_heap_size) {
3378 $Specific_heap_size = $heap_size;
3380 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n";
3384 /^(-K|Rmax-(stk|stack)size)(.*)/ && do {
3386 local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3);
3387 if ($stk_size =~ /(\d+)[Kk]$/) {
3388 $stk_size = $1 * 1000;
3389 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
3390 $stk_size = $1 * 1000 * 1000;
3391 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
3392 $stk_size = $1 * 1000 * 1000 * 1000;
3394 if ($stk_size <= 0) {
3395 print STDERR "$Pgm: resetting stack-size to zero!!! $stk_size\n";
3396 $Specific_stk_size = 0;
3398 # if several stack sizes given, take the largest...
3399 } elsif ($stk_size >= $Specific_stk_size) {
3400 $Specific_stk_size = $stk_size;
3402 print STDERR "$Pgm: ignoring stack-size-setting option ($flag $stk_size)...not the largest seen\n";
3406 /^-Rgc-stats$/ && do { $CollectingGCstats++;
3407 # the two RTSs do this diff ways; we will try to compensate
3410 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
3412 #---------- C high-level assembler (gcc) -------------------------------
3413 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
3415 # -dgcc-lint is a useful way of making GCC very fussy.
3416 # From alan@spri.levels.unisa.edu.au (Alan Modra).
3417 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
3418 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
3419 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
3421 # inject "#include <wurble>" into the compiler's C output!
3423 /^-#include(.*)/ && do {
3424 local($to_include) = &grab_arg_arg(*Args,'-#include', $1);
3425 push(@CcInjects, "#include $to_include\n");
3428 #---------- Linker (gcc, really) ---------------------------------------
3430 /^-static$/ && do { $Static=1; push(@Ld_flags, $_); next arg; };
3431 /^-no-hs-main$/ && do { $NoHaskellMain=1; next arg; };
3433 #---------- mixed cc and linker magic ----------------------------------
3434 # this optimisation stuff is finally sorted out later on...
3436 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
3438 /^-O[1-2]?$/ && do {
3439 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
3440 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
3442 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
3445 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
3447 /^-Ofile(.*)/ && do {
3449 local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1);
3450 @HsC_minusO3_flags = ();
3452 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
3455 s/\#.*//; # death to comments
3456 s/[ \t]+//g; # death to whitespace
3457 next if /^$/; # ditto, blank lines
3458 s/([()*{}])/\\$1/g; # protect shell metacharacters
3460 push(@CcBoth_flags, $1);
3462 push(@HsC_minusO3_flags, $_);
3468 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
3469 # in the consistency info
3473 #---------- linking .a file --------------------------------------------
3475 /^-Main(.*)/ && do {
3476 # specifies main or mainPrimIO to be linked
3480 #---------- catch unrecognized flags -----------------------------------
3483 print STDERR "$Pgm: unrecognised option: $_\n";
3489 } # end of processArgs