1 % (c) The GRASP/AQUA Project, Glasgow University, 1992-1997
4 This is the driver script for the Glasgow Haskell compilation system.
5 It is written in \tr{perl}. The first section includes a long
6 ``usage'' message that describes how the driver is supposed to work.
8 %************************************************************************
10 \section[Driver-usage]{Usage message}
12 %************************************************************************
15 ($Pgm = $0) =~ s|.*/||;
16 $ShortUsage = "\nUsage: For basic information, try the `-help' option.\n";
17 $LongUsage = "\n" . <<EOUSAGE;
18 Use of the Glorious Haskell Compilation System driver:
20 $Pgm [command-line-options-and-input-files]
22 ------------------------------------------------------------------------
23 This driver ($Pgm) guides each input file through (some of the)
24 possible phases of a compilation:
26 - unlit: extract code from a "literate program"
27 - hscpp: run code through the C pre-processor (if -cpp flag given)
28 - hsc: run the Haskell compiler proper
29 - gcc: run the C compiler (if compiling via C)
30 - as: run the assembler
33 For each input file, the phase to START with is determined by the
35 - .lhs literate Haskell: unlit
36 - .hs illiterate Haskell: hsc
37 - .hc C from the Haskell compiler: gcc
38 - .c C not from the Haskell compiler: gcc
39 - .s assembly language: as
40 - other passed directly to the linker: ld
42 If no files are given on the command line, input is taken from
43 standard input, and processing is as for an .hs file. (All output is
44 to stdout or stderr, however).
46 The phase at which to STOP processing is determined by a command-line
48 -E stop after generating preprocessed, de-litted Haskell (used in conjunction with -cpp)
49 -C stop after generating C (.hc output)
50 -S stop after generating assembler (.s output)
51 -c stop after generating object files (.o output)
53 Other commonly-used options are:
55 -O An `optimising' package of compiler flags, for faster code
57 -prof Compile for cost-centre profiling
58 (add -auto for automagic cost-centres on top-level functions)
60 -fglasgow-exts Allow Glasgow extensions (unboxed types, etc.)
62 -H14m Increase compiler's heap size
64 -M Output the Makefile rules recording the
65 dependencies of a list of Haskell files.
66 (ghc driver script calls upon the help of a
67 compatible mkdependHS script to do the actual
70 The User's Guide has more information about GHC's *many* options.
72 Given the above, here are some TYPICAL invocations of $Pgm:
74 # compile a Haskell module to a .o file, optimising:
76 # link three .o files into an executable called "test":
77 % $Pgm -o test Foo.o Bar.o Baz.o
78 # compile a Haskell module to C (a .hc file), using a bigger heap:
79 % $Pgm -C -H16m Foo.hs
80 # compile Haskell-produced C (.hc) to assembly language:
82 ------------------------------------------------------------------------
86 %************************************************************************
88 \section[Driver-init]{Initialisation}
90 %************************************************************************
92 The driver script need to be told where to find these executables, so
93 in the course of building the driver `executable', make-variables holding
94 these are prepended to the de-litted version of this file. The variables are:
99 HOSTPLATFORM TARGETPLATFORM
101 ProjectName ProjectVersion ProjectVersionInt
103 HscMajorVersion HscMinorVersion CcMajorVersion CcMinorVersion
107 bindir libdir libexecdir datadir
111 GHC_LIB_DIR GHC_RUNTIME_DIR GHC_INCLUDE_DIR
113 GHC_OPT_HILEV_ASM GhcWithNativeCodeGen
115 GHC_UNLIT GHC_HSCPP GHC_MKDEPENDHS GHC_HSC GHC_SYSMAN
119 WAY_*_NAME WAY_*_REAL_OPTS
127 Establish what executables to run for the various phases, what the
128 default options are for those phases, and other similar boring stuff.
131 select(STDERR); $| = 1; select(STDOUT); # no STDERR buffering, please.
133 $TargetPlatform = $TARGETPLATFORM;
135 $TopPwd = "${TOP_PWD}";
136 $InstBinDirGhc = "${bindir}";
137 $InstLibDirGhc = "${libdir}";
139 # Normally the same as InstLibDirGhc, but we accommodate
140 # for it being separate.
142 $InstLibExecDirGhc = "${libexecdir}";
143 $InstDataDirGhc = "${datadir}";
145 $Status = 0; # just used for exit() status
148 # set up signal handler
149 sub quit_upon_signal { &tidy_up_and_die(1, ''); }
150 $SIG{'INT'} = 'quit_upon_signal';
151 $SIG{'QUIT'} = 'quit_upon_signal';
153 # where to get "require"d .prl files at runtime (poor man's dynamic loading)
154 # (use LIB, not DATA, because we can't be sure of arch-independence)
155 @INC = ( ( $INSTALLING ) ? $InstLibDirGhc
156 : "$TopPwd/${CURRENT_DIR}" );
158 if ( $ENV{'TMPDIR'} ) { # where to make tmp file names
159 $Tmp_prefix = ($ENV{'TMPDIR'} . "/ghc$$");
161 print STDERR "TMPDIR has not been set to anything useful!\n" if (${TMPDIR} eq '');
162 $Tmp_prefix ="${TMPDIR}/ghc$$"; # TMPDIR set via Makefile when booting..
163 $ENV{'TMPDIR'} = ${TMPDIR}; # set the env var as well
166 # Some shells run into real trouble when command line and environment
167 # gets big (e.g., cmd lines of >4K to /bin/sh causes havoc on our
168 # Solaris-2.5.1 boxes - even though sysconf(_SC_ARG_MAX) reports 1M ...).
169 # To work around any such */bin/sh* problems, we will scribble such
170 # awfully long command lines into a temp file and exec that temp file
171 # with $(REAL_SHELL) (don't use the SHELL variable directly as this
172 # will normally get you the wrong thing when the driver is invoked
173 # from within `make'). If the REAL_SHELL variable isn't set, you'll
174 # get SHELL. This is all a terrible hack. (in case you hadn't reached
175 # the same conclusion by now :-)
179 if ( ! $ENV{'REAL_SHELL'} ) {
180 $ENV{'REAL_SHELL'} = $ENV{'SHELL'};
183 @Files_to_tidy = (); # files we nuke in the case of abnormal termination
185 $Unlit = ( $INSTALLING ) ? "$InstLibExecDirGhc/unlit"
186 : "$TopPwd/${CURRENT_DIR}/${GHC_UNLIT}";
190 $Diff = $CONTEXT_DIFF;
195 $HsCpp = # but this is re-set to "cat" (after options) if -cpp not seen
196 ( $INSTALLING ) ? "$InstLibExecDirGhc/hscpp"
197 : "$TopPwd/${CURRENT_DIR}/${GHC_HSCPP}";
200 $HsC = ( $INSTALLING ) ? "$InstLibExecDirGhc/hsc"
201 : "$TopPwd/${CURRENT_DIR}/${GHC_HSC}";
203 # For PVM fiends only
204 $SysMan = ( $INSTALLING ) ? "$InstLibExecDirGhc/SysMan"
205 : "$TopPwd/${CURRENT_DIR}/${GHC_SYSMAN}";
210 # HsC_rts_flags: if we want to talk to the LML runtime system
211 # NB: we don't use powers-of-2 sizes, because this may do
212 # terrible things to cache behavior.
214 $Specific_heap_size = 6 * 1000 * 1000;
215 $Specific_stk_size = 1000 * 1000;
216 $Scale_sizes_by = 1.0;
220 The variables set by @setupOptFlags@ represent parts of the
221 -O/-O2/etc ``templates,'' which are filled in later, using these.
222 These are the default values, which may be changed by user flags.
226 $Oopt_MaxSimplifierIterations = '-fmax-simplifier-iterations4';
227 $Oopt_PedanticBottoms = '-fpedantic-bottoms'; # ON by default
228 $Oopt_FinalStgProfilingMassage = '';
230 $Oopt_DoSpecialise = '-fspecialise';
231 $Oopt_FoldrBuild = 0; # *Off* by default!
232 $Oopt_UsageSPInf = ''; # Off by default
233 } # end of setupOptFlags
235 # Assign defaults to these right away.
239 Things to do with C compilers/etc:
241 (added -Wimplicit: implicit prototypes cause very hard-to-find
242 problems, so I'm turing on the warnings -- SDM 4/5/98)
245 $CcRegd = $GHC_OPT_HILEV_ASM;
246 @CcBoth_flags = ('-S','-Wimplicit'); # flags for *any* C compilation
250 # those for all files,
251 # those only for .c files;
252 # those only for .hc files
255 @CcRegd_flags_c = ();
256 @CcRegd_flags_hc = ();
258 $As = ''; # "assembler" is normally GCC
261 $Lnkr = ''; # "linker" is normally GCC
265 # 'nm' is used for consistency checking (ToDo: mk-world-ify)
266 # ToDo: check the OS or something ("alpha" is surely not the crucial question)
267 $Nm = ($TargetPlatform =~ /^alpha-/) ? 'nm -B' : 'nm';
270 Warning packages that are controlled by -W and -Wall. The 'standard'
271 warnings that you get all the time are
273 -fwarn-overlapping-patterns
274 -fwarn-missing-methods
275 -fwarn-missing-fields
277 -fwarn-duplicate-exports
279 these are turned off by -Wnot.
282 @StandardWarnings = ('-fwarn-overlapping-patterns',
283 '-fwarn-missing-methods',
284 '-fwarn-missing-fields',
285 '-fwarn-deprecations',
286 '-fwarn-duplicate-exports');
287 @MinusWOpts = (@StandardWarnings,
288 '-fwarn-unused-binds',
289 '-fwarn-unused-matches',
290 '-fwarn-incomplete-patterns',
291 '-fwarn-unused-imports');
292 @MinusWallOpts = (@MinusWOpts,
293 '-fwarn-type-defaults',
294 '-fwarn-name-shadowing',
295 '-fwarn-missing-signatures');
298 What options \tr{-user-setup-a} turn into (user-defined ``packages''
300 of options). Note that a particular user-setup implies a particular
301 Prelude ({\em including} its interface file(s)).
303 $BuildTag = ''; # default is sequential build w/ Appel-style GC
305 %BuildDescr = (# system ways begin
306 '', 'Normal Sequential',
308 '_t', "Ticky-ticky Profiling",
309 '_u', "Unregisterised",
330 '_B', "$WAY_B_NAME" );
332 # these are options that are "fed back" through the option processing loop
336 '_a', "$WAY_a_REAL_OPTS",
337 '_b', "$WAY_b_REAL_OPTS",
338 '_c', "$WAY_c_REAL_OPTS",
339 '_d', "$WAY_d_REAL_OPTS",
340 '_e', "$WAY_e_REAL_OPTS",
341 '_f', "$WAY_f_REAL_OPTS",
342 '_g', "$WAY_g_REAL_OPTS",
343 '_h', "$WAY_h_REAL_OPTS",
344 '_i', "$WAY_i_REAL_OPTS",
345 '_j', "$WAY_j_REAL_OPTS",
346 '_k', "$WAY_k_REAL_OPTS",
347 '_l', "$WAY_l_REAL_OPTS",
348 '_m', "$WAY_m_REAL_OPTS",
349 '_n', "$WAY_n_REAL_OPTS",
350 '_o', "$WAY_o_REAL_OPTS",
351 '_A', "$WAY_A_REAL_OPTS",
352 '_B', "$WAY_B_REAL_OPTS",
355 '_p', "-fscc-profiling -DPROFILING -optc-DPROFILING",
356 '_t', "-fticky-ticky -DTICKY_TICKY -optc-DTICKY_TICKY",
357 '_u', "-optc-DNO_REGS -optc-DUSE_MINIINTERPRETER -fno-asm-mangling -funregisterised",
358 '_s', "-fsmp -optc-pthread -optl-pthread -optc-DSMP",
359 '_mp', "-fparallel -D__PARALLEL_HASKELL__ -optc-DPAR",
360 '_mg', "-fgransim -D__GRANSIM__ -optc-DGRAN");
362 # where to look for interface files (system hi's, i.e., prelude and syslibs)
363 @SysImport_dir = ( $INSTALLING )
364 ? ( "$InstLibDirGhc/imports/std" )
365 : ( "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std" );
367 # We need to look in ghc/ and glaExts/ when searching for implicitly needed .hi files, but
368 # we should really *not* look there for explicitly imported modules.
370 $Haskell1Version = 5; # i.e., Haskell 1.4
373 # Cpp symbols defined when we're processing Haskell source.
377 , "-D__HASKELL1__=$Haskell1Version"
378 , "-D__GLASGOW_HASKELL__=$ProjectVersionInt"
380 , "-D__CONCURRENT_HASKELL__"
384 @SysLibrary_dir = ( ( $INSTALLING ) #-syslib things supplied by the system
386 : ( "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR"
387 , "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/gmp"
388 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std"
389 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std/cbits"
393 # make depend for Haskell
395 = ( $INSTALLING ) ? "$InstLibExecDirGhc/mkdependHS"
396 : "$TopPwd/$CURRENT_DIR/$GHC_MKDEPENDHS";
398 @MkDependHS_flags = ();
400 # do_link flag should not be reset while rescanning the cmd-line.
402 $Specific_output_dir = ''; # set by -odir <dir>
403 $Specific_output_file = ''; # set by -o <file>; "-" for stdout
406 Function to initialise the per-compilation-unit globals that
407 are used to guide and control the invocation of the different phases.
410 sub initDriverGlobals {
412 # reset the following options:
413 # RTS flags to use while compiling
419 The optimisations/etc to be done by the compiler are {\em normally}
420 expressed with a \tr{-O} (or \tr{-O2}) flag, or by its absence.
423 $OptLevel = 0; # no -O == 0; -O == 1; -O2 == 2; -Ofile == 3
424 $MinusO2ForC = 0; # set to 1 if -O2 should be given to C compiler
425 $StolenX86Regs = 4; # **HACK*** of the very worst sort
430 # The SplitMarker is the string/character used to mark end of element
433 @Import_dir = ('.'); #-i things
434 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
436 @UserLibrary_dir= (); #-L things;...
437 @UserLibrary = (); #-l things asked for by the user
439 @SysLibrary = (); # will be built up as we go along
442 We are given a list of files with various presumably-known suffixes
443 (unknown-suffix files go straight to the linker). For each file, we
444 begin by assuming that we'll run every phase over it. However: (1)
445 global flags (\tr{-c}, \tr{-S}, etc.) tell us not to run any phase
446 past a certain point; and (2) the file's suffix tells us what phase to
447 start with. Linking is weird and kept track of separately.
449 Here are the initial defaults applied to all files:
451 $Cpp_flag_set = 0; # (hack)
452 $Only_preprocess_C = 0; # pretty hackish
453 $Only_preprocess_hc = 0; # ditto
454 $Only_generate_deps = 0; # ""
455 $Only_generate_dll = 0;
456 $PostprocessCcOutput = 0;
459 # static = 0 => produce code for DLLs (when compiling & linking.)
461 $Static = 0 if ($EnableWin32DLLs eq 'YES');
463 # native code-gen or via C?
464 $HaveNativeCodeGen = $GhcWithNativeCodeGen;
465 $HscOut = '-C='; # '-C=' ==> .hc output; '-S=' ==> .s output; '-N=' ==> neither
467 if ($HaveNativeCodeGen ne 'YES') && $TargetPlatform =~ /^(alpha)-/;
468 # TEMP: disable x86 & Sparc if $HaveNativeCodeGen && $TargetPlatform =~ /^(i386|alpha|sparc)-/;
469 $ProduceHi = '-hifile=';
475 $CollectingGCstats = 0;
476 $CollectGhcTimings = 0;
477 $DEBUGging = ''; # -DDEBUG and all that it entails (um... not really)
478 $PROFing = ''; # set to p or e if profiling
479 $PROFgroup = ''; # set to group if an explicit -Ggroup specified
480 $PROFauto = ''; # set to relevant hsc flag if -auto or -auto-all
481 $PROFcaf = ''; # set to relevant hsc flag if -caf-all
482 $PROFdict = ''; # set to relevant hsc flag if -auto-dicts
483 $PROFignore_scc = ''; # set to relevant parser flag if explicit sccs ignored
484 $UNPROFscc_auto = ''; # set to relevant hsc flag if forcing auto sccs without profiling
485 $TICKYing = ''; # set to t if compiling for ticky-ticky profiling
486 $PARing = ''; # set to p if compiling for PAR
487 $GRANing = ''; # set to g if compiling for GRAN
488 $UNREGing = ($GhcWithRegisterised eq 'YES') ? '' : 'u';
489 $Specific_hi_file = ''; # set by -ohi <file>; "-" for stdout
490 $Specific_dump_file = ''; # set by -odump <file>; "-" for stdout
491 $Using_dump_file = 0;
493 $Osuffix = ''; # default: use the normal suffix for that kind of output
495 $HiSuffix_prelude = '';
497 $Do_recomp_chkr = 0; # don't use the recompilatio checker unless asked
498 $Do_cc = -1; # a MAGIC indeterminate value; will be set to 1 or 0.
501 $Keep_hc_file_too = 0;
502 $Keep_s_file_too = 0;
503 $UseGhcInternals = 0; # if 1, may use GHC* modules
505 $DoAsmMangling = 1; # on by default, off by -fno-asm-mangling
507 $Dump_parser_output = 0;
509 $Dump_asm_splitting_info = 0;
510 $NoImplicitPrelude = 0;
511 # 1 => don't tell the linker to hoist in PrelMain.Main, as an
512 # external main is provided instead.
515 } # end of initDriverGlobals (Sigh)
517 # we split the argv passed to the driver into three:
522 # and files to be linked...
528 # cmd line options prefixing the unit we're compiling
533 We inject consistency-checking information into \tr{.hc} files (both
534 when created by the Haskell compiler and when compiled by the C
535 compiler), so that we can check that an executable is made from
536 consistently-built pieces. (The check is normally done just after
537 linking.) The checking is done by introducing/munging
538 \tr{what(1)}-style strings. Anyway, here are the relevant global
539 variables and their defaults:
541 $LinkChk = 0; # set to 0 if the link check should *not* be done
543 # major & minor version numbers; major numbers must always agree;
544 # minor disagreements yield a warning.
545 $HsC_major_version = $HscMajorVersion;
546 $HsC_minor_version = $HscMinorVersion;
547 $Cc_major_version = $CcMajorVersion;
548 $Cc_minor_version = $CcMinorVersion;
550 # options: these must always agree
551 $HsC_consist_options = ''; # we record, in this order:
552 # Build tag; debugging?
553 $Cc_consist_options = ''; # we record, in this order:
554 # Build tag; debugging?
557 %************************************************************************
559 \section[Driver-parse-argv]{Munge the command-line options}
561 %************************************************************************
563 Now slurp through the arguments.
566 &initDriverGlobals();
567 &splitCmdLine(@ARGV);
568 # Run through the cmd-line first time.
569 &processArgs(@Cmd_opts);
571 # Check to see if driver is only in the business
572 # to generate dependencies
573 if ( $Status == 0 && $Only_generate_deps ) {
575 push (@MkDependHS_flags, "-o$Osuffix") if $Osuffix;
576 # They're not (currently) needed, but we need to quote any -#include options
577 foreach (@Cmd_opts) {
578 s/-#include.*$/'$&'/g;
580 local($to_do) = "$MkDependHS @MkDependHS_flags @HsSourceCppOpts -- @Cmd_opts -- @Input_file" ;
581 &run_something($to_do, 'Haskell dependencies');
585 # ..or just to construct a (Haskell) DLL.
586 if ( $Status == 0 && $Only_generate_dll && $EnableWin32DLLs ) {
592 # if there are several input files,
593 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
594 # (except if linking, of course)
596 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
597 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
598 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
599 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
600 print STDERR "\tPerhaps the -odir option will do what you want.\n";
605 # check for various pathological -o and -odir combinations...
606 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
607 if ($Specific_output_file eq '-') {
608 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
610 } else { # amalgamate...
611 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
612 # ToDo: check we haven't got a junk name now...
613 $Specific_output_dir = ''; # reset
617 # crash and burn if there were errors
619 print STDERR $ShortUsage;
624 %************************************************************************
626 \section[Driver-post-argv-mangling]{Setup after reading options}
628 %************************************************************************
630 %************************************************************************
632 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
634 %************************************************************************
636 We come now to the default ``wads of options'' that are turned on by
637 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
638 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
641 The user can also specify his/her own list of options in a file; in
642 that case, the work is already done (see stuff about @minusO3@,
645 GHC allows very precise control of what happens during a compilation.
646 Core-to-Core and STG-to-STG passes can be run in any order, as many
647 times as you like. Individual transformations can be turned on or
650 Sadly, however, there are some interdependencies \& Things You Must
651 Not Do. Here is the list.
655 \item[\tr{-fspecialise}:]
656 The specialiser must have dependency-analysed input; but if you run
657 the simplifier to do this, you must not let it toss away unused
658 bindings! (The typechecker conveys some specialisation info via
659 ``unused'' bindings...)
661 \item[\tr{-ffloat-inwards}:]
662 Floating inwards should be done before strictness analysis, because
663 the latter will give better results.
665 \item[\tr{-fstatic-args}:]
666 The static-arguments-transformation pass {\em must} have the
667 simplifier run right after it.
669 \item[\tr{-fcalc-inlinings[12]}:]
670 Not required, but there may be slight gains by re-simplifying after
671 this is done. (You could then \tr{-fcalc-inlinings} again, just for
674 \item[\tr{-ffull-laziness}:]
675 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
676 that's run. (Um, well, howzabout the simplifier just once more...)
681 \item[\tr{-fupdate-analysis}:]
682 It really really wants to be the last STG-to-STG pass that is run.
687 sub setupOptimiseFlags {
689 # this pass-ordering sequence was agreed by Simon and Andr\'e
690 # (WDP 94/07, 94/11).
696 $Oopt_MaxSimplifierIterations,
700 $Oopt_FinalStgProfilingMassage
703 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
707 '-fdo-eta-reduction',
708 '-fdo-lambda-eta-expansion',
712 $Oopt_PedanticBottoms,
714 # initial simplify: mk specialiser happy: minimum effort please
718 '-finline-phase0', # Don't inline anything till full laziness has bitten
719 # In particular, inlining wrappers inhibits floating
720 # e.g. ...(case f x of ...)...
721 # ==> ...(case (case x of I# x# -> fw x#) of ...)...
722 # ==> ...(case x of I# x# -> case fw x# of ...)...
723 # and now the redex (f x) isn't floatable any more
725 '-fno-rules', # Similarly, don't apply any rules until after full laziness
726 # Notably, list fusion can prevent floating.
728 '-fmax-simplifier-iterations2',
731 # Specialisation is best done before full laziness
732 # so that overloaded functions have all their dictionary lambdas manifest
733 ($Oopt_DoSpecialise) ? ( $Oopt_DoSpecialise, ) : (),
739 # # Run the simplifier before specialising, so that overloaded functions
740 # # look like f = \d -> ...
741 # # (Full laziness may lift out something hiding the \d
743 # '-fmax-simplifier-iterations1',
750 # Want to run with inline phase 1 after the specialiser to give
751 # maximum chance for fusion to work before we inline build/augment
752 # in phase 2. This made a difference in 'ansi' where an overloaded
753 # function wasn't inlined till too late.
754 $Oopt_MaxSimplifierIterations,
757 $Oopt_UsageSPInf, # infer usage information here in case we need it later.
758 # (add more of these where you need them --KSW 1999-04)
762 # Need inline-phase2 here so that build/augment get
763 # inlined. I found that spectral/hartel/genfft lost some useful
764 # strictness in the function sumcode' if augment is not inlined
765 # before strictness analysis runs
768 $Oopt_MaxSimplifierIterations,
778 $Oopt_MaxSimplifierIterations,
779 # No -finline-phase: allow all Ids to be inlined now
782 '-ffull-laziness', # nofib/spectral/hartel/wang doubles in speed if you
783 # do full laziness late in the day. It only happens
784 # after fusion and other stuff, so the early pass doesn't
785 # catch it. For the record, the redex is
786 # f_el22 (f_el21 r_midblock)
788 # We want CSE to follow the final full-laziness pass, because it may
789 # succeed in commoning up things floated out by full laziness.
791 # CSE must immediately follow a simplification pass, because it relies
792 # on the no-shadowing invariant. See comments at the top of CSE.lhs
793 # So it must NOT follow float-inwards, which can give rise to shadowing,
794 # even if its input doesn't have shadows. Hence putting it between
801 # Case-liberation for -O2. This should be after
802 # strictness analysis and the simplification which follows it.
806 # : "-fliberate-case -fsimplify [ $Oopt_FB_Support -ffloat-lets-exposing-whnf -ffloat-primops-ok -fcase-of-case -fdo-case-elim -fcase-merge -fdo-lambda-eta-expansion -freuse-con -flet-to-case $Oopt_PedanticBottoms $Oopt_MaxSimplifierIterations $Oopt_ShowSimplifierProgress ]" ),
810 # Final clean-up simplification:
814 $Oopt_MaxSimplifierIterations,
815 # No -finline-phase: allow all Ids to be inlined now
822 $Oopt_FinalStgProfilingMassage,
828 # SPECIAL FLAGS for -O2
830 '-fupdate-analysis', # virtually useless; relegated to -O2
837 Sort out what we're going to do about optimising. First, the @hsc@
838 flags and regular @cc@ flags to worry about:
840 if ( $OptLevel <= 0 ) {
842 # for this level, we tell the parser -fignore-interface-pragmas
843 push(@HsC_flags, '-fignore-interface-pragmas');
844 # and tell the compiler not to produce them
845 push(@HsC_flags, '-fomit-interface-pragmas');
847 &add_Hsc_flags( @HsC_minusNoO_flags );
848 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
850 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
852 &add_Hsc_flags( @HsC_minusO_flags );
853 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
854 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
855 # but it *is* useful in compiling the garbage collector.
857 } else { # -Ofile, then...
859 &add_Hsc_flags( @HsC_minusO3_flags );
860 push(@HsC_flags, $Oopt_FinalStgProfilingMassage) if $Oopt_FinalStgProfilingMassage;
862 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
865 } # setupOptimiseFlags
869 %************************************************************************
871 \subsection{Check for consistency, etc.}
873 %************************************************************************
875 Sort out @$BuildTag@, @$PROFing@, @$PARing@,
876 @$GRANing@, @$TICKYing@, @UNREGing@:
878 sub setupBuildFlags {
880 # PROFILING stuff after argv mangling:
882 # add -auto sccs even if not profiling !
883 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
886 push(@HsC_flags, $PROFauto) if $PROFauto;
887 push(@HsC_flags, $PROFcaf) if $PROFcaf;
888 push(@HsC_flags, $PROFdict) if $PROFdict;
890 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
892 # Ignore user sccs when auto annotating, but warn when doing so.
893 $PROFignore_scc = '-W' if $PROFauto;
895 #if ( $BuildTag ne '' ) {
896 # local($b) = $BuildDescr{$BuildTag};
897 # if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
898 # if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
899 # if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
901 # # ok to have a user-way profiling build
902 # # eval the profiling opts ... but leave user-way BuildTag
903 # if ($PROFing eq 'p') { &processArgs(split(' ', $SetupOpts{'_p'})); } # eval($EvaldSetupOpts{'_p'}); }
905 if ( $PROFing eq 'p' ) {
906 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
907 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
908 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
911 } elsif ( $PARing eq 'p' ) {
912 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
913 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
916 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
917 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
921 } elsif ( $SMPing eq 's') {
924 } elsif ( $GRANing eq 'g' ) {
925 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
928 } elsif ( $TICKYing eq 't' ) {
931 } elsif ( $UNREGing eq 'u' ) {
932 if ($GhcWithRegisterised eq 'YES') {
938 After the sanity checks, add flags to the necessary parts of the driver pipeline:
941 if ( $BuildTag ne '' ) { # something other than normal sequential...
943 local($Tag) = "${BuildTag}";
944 $Tag =~ s/_//; # move the underscore to the back
946 $HscOut = '-C='; # must go via C
947 &processArgs(split(' ', $SetupOpts{$BuildTag}));
948 # eval($EvaldSetupOpts{$BuildTag});
952 Decide what the consistency-checking options are in force for this run:
955 $HsC_consist_options = "${BuildTag},${DEBUGging}";
956 $Cc_consist_options = "${BuildTag},${DEBUGging}";
959 # Funny place to put it, but why not.
961 if ( $HiSuffix_prelude eq '' ) {
963 if ($CompilingPrelude) {
964 $HiSuffix_prelude = "$HiSuffix" if $CompilingPrelude;
966 local($Tag) = "${BuildTag}";
969 $Tag = "${Tag}_" if $Tag ne '';
970 $HiSuffix_prelude="${Tag}hi";
976 %************************************************************************
978 \subsection{Add on machine-specific C-compiler flags}
980 %************************************************************************
982 Shove on magical machine-specific options. We use \tr{unshift} to
983 stick them on the {\em front} of the arrays, so that ``later''
984 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
986 Note: a few ``always apply'' flags were set at the very beginning.
991 if ($TargetPlatform =~ /^alpha-/) {
992 unshift(@CcBoth_flags, ('-static'));
994 } elsif ($TargetPlatform =~ /^hppa/) {
995 unshift(@CcBoth_flags, ('-static'));
997 # We don't put in '-mlong-calls', because it's only
998 # needed for very big modules (sigh), and we don't want
999 # to hobble ourselves further on all the other modules
1002 # [Dated comment (gcc-2.6.x?), -mlong-calls is no longer
1003 # a supported gcc HPPA flag]
1004 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
1005 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
1006 # (very nice, but too bad the HP /usr/include files don't agree.)
1008 } elsif ($TargetPlatform =~ /^i386-/) {
1009 # -fno-defer-pop : basically the same game as for m68k
1011 # -fomit-frame-pointer : *must* in .hc files; because we're stealing
1012 # the fp (%ebp) for our register maps.
1014 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1015 unshift(@CcRegd_flags_hc, '-fomit-frame-pointer');
1016 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1018 unshift(@CcBoth_flags, ('-DDONT_WANT_WIN32_DLL_SUPPORT')) if ($Static);
1020 } elsif ($TargetPlatform =~ /^m68k-/) {
1021 # -fno-defer-pop : for the .hc files, we want all the pushing/
1022 # popping of args to routines to be explicit; if we let things
1023 # be deferred 'til after an STGJUMP, imminent death is certain!
1025 # -fomit-frame-pointer : *don't*
1026 # It's better to have a6 completely tied up being a frame pointer
1027 # rather than let GCC pick random things to do with it.
1028 # (If we want to steal a6, then we would try to do things
1029 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1031 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1032 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1033 # maybe gives reg alloc a better time
1034 # also: -fno-defer-pop is not sufficiently well-behaved without it
1036 } elsif ($TargetPlatform =~ /^mips-/) {
1037 unshift(@CcBoth_flags, ('-static'));
1039 } elsif ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1040 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1041 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1042 } elsif ($TargetPlatform =~ /^sparc-/) {
1044 } # end of setupMachOpts
1047 %************************************************************************
1049 \subsection{Set up for warnings}
1051 %************************************************************************
1053 Several warnings are turned on by default. These are supposed to be
1054 the 'I'm pretty sure you've made a mistake here' kind of warnings.
1055 The rest are turned on by the -W and -Wall options, or individually
1056 via their -fwarn and -fno-warn flags.
1059 sub setupWarningFlags {
1060 &add_Hsc_flags( @StandardWarnings );
1064 Same unshifting magic, but for special linker flags.
1066 The configure script determines whether the object file symbol tables
1067 have a leading underscore, and sets @LeadingUnderscore@ accordingly.
1068 (The driver script `sees' the setting of the @LeadingUnderscore@
1069 by having the Makefile prepend it).
1073 local($uscore) = ( ${LeadingUnderscore} eq 'YES' ) ? '_' : '';
1076 (($Ld_main) ? ( '-u', "${uscore}Main_" . $Ld_main . '_closure' ) : ()));
1078 # things that are referenced by the RTS - make sure that we pull 'em in
1080 ( '-u', "${uscore}PrelBase_Izh_static_info"
1081 ,'-u', "${uscore}PrelBase_Czh_static_info"
1082 ,'-u', "${uscore}PrelFloat_Fzh_static_info"
1083 ,'-u', "${uscore}PrelFloat_Dzh_static_info"
1084 ,'-u', "${uscore}PrelAddr_Azh_static_info"
1085 ,'-u', "${uscore}PrelAddr_Wzh_static_info"
1086 ,'-u', "${uscore}PrelAddr_I64zh_static_info"
1087 ,'-u', "${uscore}PrelAddr_W64zh_static_info"
1088 ,'-u', "${uscore}PrelStable_StablePtr_static_info"
1089 ,'-u', "${uscore}PrelBase_Izh_con_info"
1090 ,'-u', "${uscore}PrelBase_Czh_con_info"
1091 ,'-u', "${uscore}PrelFloat_Fzh_con_info"
1092 ,'-u', "${uscore}PrelFloat_Dzh_con_info"
1093 ,'-u', "${uscore}PrelAddr_Azh_con_info"
1094 ,'-u', "${uscore}PrelAddr_Wzh_con_info"
1095 ,'-u', "${uscore}PrelAddr_I64zh_con_info"
1096 ,'-u', "${uscore}PrelAddr_W64zh_con_info"
1097 ,'-u', "${uscore}PrelStable_StablePtr_con_info"
1098 ,'-u', "${uscore}PrelBase_False_static_closure"
1099 ,'-u', "${uscore}PrelBase_True_static_closure"
1100 ,'-u', "${uscore}PrelPack_unpackCString_closure"
1101 ,'-u', "${uscore}PrelException_stackOverflow_closure"
1102 ,'-u', "${uscore}PrelException_heapOverflow_closure"
1103 ,'-u', "${uscore}PrelException_NonTermination_static_closure"
1105 if (!$NoHaskellMain) {
1106 unshift (@Ld_flags,'-u', "${uscore}PrelMain_mainIO_closure");
1108 if ($PROFing ne '') {
1109 unshift (@Ld_flags,'-u', "${uscore}_regPrelude");
1111 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1112 # sometimes we have lots of toc entries...
1113 # unshift(@Ld_flags, ('-Xlinker -bbigtoc -Xlinker -bnoquiet'));
1114 unshift(@Ld_flags, ('-Xlinker -bbigtoc'));
1116 if ($TargetPlatform =~ /^hppa/) {
1117 unshift(@Ld_flags, ('-Xlinker +vnocompatwarnings'));
1120 } # end of setupLinkOpts
1124 %************************************************************************
1126 \subsection{Set up include paths and system-library enslurpment}
1128 %************************************************************************
1130 Now that we know what garbage-collector, etc., are required, we can
1131 finalise our list of libraries to slurp through, and generally Get
1136 # default includes must be added AFTER option processing
1137 if ( ! $INSTALLING ) {
1138 push (@Include_dir, "$TopPwd/${CURRENT_DIR}/${GHC_INCLUDE_DIR}");
1140 push (@Include_dir, "$InstLibDirGhc/includes");
1141 push (@Include_dir, "$InstLibDirGhc/includes");
1143 } # end of setupIncPaths
1148 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1151 foreach $f (@SysLibrary) {
1152 next if $f =~ /_cbits/;
1153 $f .= $BuildTag if $f =~ /^-lHS/;
1156 # Push library HSrts, plus boring clib bit
1157 push(@SysLibrary, "-lHSrts${BuildTag}");
1160 # RTS compiled with cygwin32, uses the WinMM API
1161 # to implement the itimers, since cygwin.dll does not
1162 # support it. Only reqd. for `ways' that use itimers.
1164 push(@SysLibrary, '-lwinmm') if ($TargetPlatform =~ /-(mingw32|cygwin32)$/);
1165 # Note: currently only tested with mingw, may cause conflicts when linking
1167 push(@SysLibrary, '-lwsock32') if ($TargetPlatform =~ /-(mingw32|cygwin32)$/);
1169 # Push the pvm libraries
1170 if ($BuildTag eq '_mp') {
1171 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1172 push(@SysLibrary, "-L$pvmlib", '-lgpvm3', '-lpvm3');
1173 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1174 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1175 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1176 push(@SysLibrary, '-lsocket', '-lnsl');
1180 # Push the GNU multi-precision arith lib; and the math library
1182 # If this machine has GMP already installed, then we'll get the installed
1183 # lib here, because presumably the one in the tree won't have been built.
1185 if ($LibGmp eq 'not-installed') {
1186 push(@SysLibrary, "-lgmp");
1188 push(@SysLibrary, "-l$LibGmp");
1191 push(@SysLibrary, '-lm') if !( $TargetPlatform =~ /^.*(cygwin32|mingw32)$/ );
1194 %************************************************************************
1196 \subsection{Check that this system was built to do what we are asking}
1198 %************************************************************************
1200 Before continuing we check that the appropriate build is available.
1203 #die "$Pgm: no BuildAvail?? $BuildTag\n" if $BuildDescr{$BuildTag} eq '' ; # sanity
1205 if ( $BuildDescr{$BuildTag} eq '' ) {
1206 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1207 "' \"build\" is not available with your GHC setup.\n";
1208 print STDERR "(It was not configured for it at your site.)\n";
1209 print STDERR $ShortUsage;
1213 } # end of setupSyslibs
1217 %************************************************************************
1219 \subsection{Final miscellaneous setup bits before we start going}
1221 %************************************************************************
1223 Record largest specific heapsize, if any.
1225 sub setupHeapStackSize {
1226 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1227 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1228 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1229 push(@HsC_rts_flags, "-K$Specific_stk_size");
1233 If no input or link files seen, then we let 'em feed in stdin; this is
1234 mainly for debugging.
1238 if ($#Input_file < 0 && $#Link_file < 0) {
1239 @Input_file = ( '-' );
1241 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1242 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n" if -t;
1243 while (<STDIN>) { print INF $_; }
1244 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1249 Tell the world who we are, if they asked.
1251 print STDERR "${ProjectName}, version ${ProjectVersion}\n" if $Verbose;
1254 %************************************************************************
1256 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1258 %************************************************************************
1260 Process the input files; don't continue with linking if there are
1261 problems (global variable @$Status@ non-zero).
1263 foreach $ifile (@Input_file) {
1264 &ProcessInputFile($ifile);
1267 # don't link if there were errors...
1268 if ( $Status > 0 ) {
1269 print STDERR $ShortUsage;
1274 # Link if appropriate.
1275 &runLinker() if $Do_lnkr;
1277 # that... that's all, folks!
1279 exit $Status; # will still be 0 if all went well
1282 %************************************************************************
1284 \section[Driver-do-one-file]{How to process a single input file}
1286 %************************************************************************
1289 sub ProcessInputFile {
1290 local($ifile) = @_; # input file name
1291 local($ifile_root); # root of or basename of input file
1292 local($ofile_target); # ultimate output file we hope to produce
1293 # from input file (need to know for recomp
1294 # checking purposes)
1295 local($hifile_target);# ditto (but .hi file)
1296 local($ofile_c_stub_target);
1297 local($ofile_h_stub_target);
1300 Handle the weirdity of input from stdin.
1302 if ($ifile ne '-') {
1303 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1304 $ofile_target = # may be reset later...
1305 ($Specific_output_file ne '' && ! $Do_lnkr)
1306 ? $Specific_output_file
1307 : &odir_ify($ifile_root, 'o');
1308 $hifile_target= ($Specific_hi_file ne '')
1310 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1311 # NB: may change if $ifile_root isn't module name (??)
1312 ($ofile_c_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.c/;
1313 ($ofile_h_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.h/;
1315 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1316 $ifile_root = '_stdin';
1317 $ofile_target = '_stdout'; # gratuitous?
1318 $hifile_target= '_stdout'; # ditto?
1322 We need to decide what phases of the compilation system we will run
1323 over this file. The defaults are the ones established when processing
1324 flags. (That established what the last phase run for all files is.)
1326 We do the pre-recompilation-checker phases here; the rest later.
1330 Look at the suffix and decide what initial phases of compilation may
1331 be dropped off for this file. Also the rather boring business of
1332 which files are coming-in/going-out.
1334 Again, we'll do the post-recompilation-checker parts of this later.
1336 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1337 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1340 # names of the files to stuff between phases
1341 # defaults are temporaries
1342 local($in_lit2pgm) = $ifile;
1343 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1344 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1345 local($hsc_hi) = "$Tmp_prefix.hi";
1346 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1347 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1348 local($as_out) = $ofile_target;
1350 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
1352 # OK, let's strip off some literate junk..
1354 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
1356 $lit2pgm_hscpp = $ifile;
1362 # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas
1363 &check_for_source_options($lit2pgm_hscpp,$ifile);
1365 # Options found in the source file take a back seat, i.e., we scan
1366 # them first. Only process the command line again if source file
1367 # contained anything of interest *or* there's more than one
1368 # input file (we have to reset the options).
1370 if ( $#Input_file >= 0 || $#File_options >= 0) {
1371 #@File_options = (@File_options, @Cmd_opts);
1373 # Now process the command line
1374 &initDriverGlobals();
1375 &processArgs((@File_options,@Cmd_opts));
1376 print STDERR "\nEffective command line: " .
1377 join(' ',(@File_options,@Cmd_opts)) . "\n" if $Verbose;
1380 # Having got the effective command line scanned, set up
1381 # the various options in prep for some real work.
1383 # check the sanity of the BuildTag we're about to use,
1384 # and if needs be, add some more flags and setup to
1385 # the different phases.
1388 &setupOptimiseFlags();
1391 &setupWarningFlags();
1392 &setupHeapStackSize();
1395 # These two variables need to be set after the
1396 # command-line has been processed and the build options
1397 # have be seen set up. This is because command-line options
1398 # can control whether to compile vias C or not.
1400 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1402 : ( ($HscOut eq '-C=') ? 1 : 0 );
1403 local($do_as) = $Do_as;
1404 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1405 local($hsc_out_c_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.c" : "";
1406 local($hsc_out_h_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.h" : "";
1408 if ($Only_preprocess_hc) { # stop after having run $Cc -E
1411 if ($Only_preprocess_C) { # stop after having run $hscpp
1412 $do_hsc=0; $do_cc = 0; $do_as=0;
1413 } elsif ($ifile =~ /.lhs$/ || $ifile =~ /.hs$/ ) {
1415 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
1416 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1418 $hsc_out_c_stub = '';
1419 $hsc_out_h_stub = '';
1420 } elsif ($ifile =~ /\.c$/) {
1421 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1422 $hsc_out = $ifile; $is_hc_file = 0;
1423 $hsc_out_c_stub = '';
1424 $hsc_out_h_stub = '';
1425 } elsif ($ifile =~ /\.[sS]$/) {
1426 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
1428 } else { # don't know what it is, but nothing to do herein...
1429 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
1432 # hack to avoid running hscpp
1433 $HsCpp = $Cat if ! $Cpp_flag_set;
1435 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) if $do_hscpp;
1439 We now think about whether to run hsc/cc or not (when hsc produces .s
1440 stuff, it effectively takes the place of both phases).
1441 To get the output file name right: for each phase that we are {\em
1442 not} going to run, set its input (i.e., the output of its preceding
1443 phase) to @"$ifile_root.<suffix>"@.
1446 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
1449 # Warning issued if -keep-hc-file-too is used without
1450 # -fvia-C (or the equivalent)
1452 if ( $HscOut ne '-C=' && $Keep_hc_file_too ) {
1453 print STDERR "$Pgm: warning: Native code generator to be used, -keep-hc-file-too will be ignored\n";
1456 if (! $do_cc && ! $do_as) { # stopping after hsc
1457 $hsc_out = ($Specific_output_file ne '')
1458 ? $Specific_output_file
1459 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
1461 $ofile_target = $hsc_out; # reset
1464 if (! $do_as) { # stopping after gcc (or hsc)
1465 $cc_as = ($Specific_output_file ne '')
1466 ? $Specific_output_file
1467 : &odir_ify($ifile_root, ( $Only_preprocess_hc ) ? 'i' : 's');
1469 $ofile_target = $cc_as; # reset
1475 Now the Haskell compiler, C compiler, and assembler
1479 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
1480 $ofile_target, $hifile_target,
1481 $going_interactive);
1484 if (-f $hsc_out_h_stub) {
1485 &run_something("cp $hsc_out_h_stub $ofile_h_stub_target", 'Copy foreign export header file');
1488 if (-f $hsc_out_c_stub) {
1489 &run_something("rm -f $ofile_c_stub_target && echo '#include \"${ofile_h_stub_target}\"' > $ofile_c_stub_target && cat $hsc_out_c_stub >> $ofile_c_stub_target", 'Copy foreign export C stubs');
1490 local ($hsc_out_s_stub);
1491 local ($hsc_out_o_stub);
1492 ($ofile_s_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$/\.s/;
1493 ($ofile_o_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$//;
1495 $ofile_o_stub_target = &osuf_ify($ofile_o_stub_target, "o");
1497 &runGcc (0, $ofile_c_stub_target, $ofile_s_stub_target);
1498 &runAs ($ofile_o_stub_target, $ofile_s_stub_target);
1501 # Bring the C stub protos into scope when compiling the .hc file.
1503 push (@CcInjects, "#include \"${hsc_out_h_stub}\"\n");
1504 # Hack - ensure that the stub .h file is included in the OPTIONS section
1505 # if the .hc file is saved.
1506 push (@File_options, "-#include \"${ofile_h_stub_target}\"\n");
1511 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
1512 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root) if ! $Only_preprocess_hc;
1515 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
1517 # save a copy of the .s file..
1518 &saveIntermediate($ifile_root , "s" , $cc_as) if ($do_as && $Keep_s_file_too);
1519 &runAs($as_out, $ifile_root) if $do_as;
1522 Finally, decide what to queue up for linker input.
1524 # tentatively assume we will eventually produce linker input:
1525 push(@Link_file, &odir_ify($ifile_root, 'o'));
1527 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
1529 if ( $ifile !~ /\.(lhs|hs|hc|c|s|a|S)$/ && $ifile !~ /_hc$/ ) {
1530 # There's sometimes confusion regarding .hi files; users
1531 # supplying them on the command line.
1532 if ( $ifile =~ /\.hi$/ ) {
1533 print STDERR "$Pgm: warning: found `$ifile' on command line; interface files should not be supplied here - ignoring it.\n";
1535 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n";
1537 # oops; we tentatively pushed the wrong thing; fix & do the right thing
1538 pop(@Link_file); push(@Link_file, $ifile);
1542 } # end of ProcessInputFile
1545 %************************************************************************
1547 \section[Driver-run-phases]{Routines to run the various phases}
1549 %************************************************************************
1553 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
1557 # Only add #line pragma if we're going to need it.
1558 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && " if ($Cpp_flag_set);
1559 $to_do .= "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
1561 push(@Files_to_tidy, $lit2pgm_hscpp );
1563 &run_something($to_do, 'literate pre-processor');
1569 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
1573 # Strictly speaking, echoing of the following line pragma is only required
1574 # on non-delit'ed input, as we've already added it during de-lit. However,
1575 # hscpp will then add a {-# LINE 1 "$lit2pgm_hsc" -} to the top of the file,
1576 # which is not very informative (but harmless). Hence, we uniformly have
1577 # {-# LINE 1 "$in_lit2pgm" #-} as the first line to all cpp'ed hsc input.
1579 $to_do = "echo '{-# LINE 1 \"$in_lit2pgm\" -}' > $hscpp_hsc && ";
1581 if ($HsCpp eq $Cat) {
1582 $to_do .= "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
1583 push(@Files_to_tidy, $hscpp_hsc );
1584 &run_something($to_do, 'Ineffective C pre-processor');
1586 local($includes) = '-I' . join(' -I',@Include_dir);
1587 $to_do .= "$HsCpp $Verbose @HsCpp_flags @HsSourceCppOpts $includes $lit2pgm_hscpp >> $hscpp_hsc";
1588 push(@Files_to_tidy, $hscpp_hsc );
1589 &run_something($to_do, 'Haskellised C pre-processor');
1592 if ( $Only_preprocess_C ) {
1593 $to_do = "$Cat $hscpp_hsc";
1594 &run_something($to_do, '');
1602 sub runHscAndProcessInterfaces {
1603 local($ifile, $hscpp_hsc, $ifile_root,
1604 $ofile_target, $hifile_target,
1605 $going_interactive) = @_;
1607 # $ifile is the original input file
1608 # $hscpp_hsc post-unlit, post-cpp, etc., input file
1609 # $ifile_root input filename minus suffix
1610 # $ofile_target the output file that we ultimately hope to produce
1611 # $hifile_target the .hi file ... (ditto)
1613 local($source_unchanged) = 1;
1615 # Check if the source file is up to date relative to the target; in
1616 # that case we say "source is unchanged" and let the compiler bail out
1617 # early if the import usage information allows it.
1619 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
1620 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
1622 # The informational messages below are now conditional on -v being set -- SOF
1623 if ( $ofile_target ne "_stdin.s" && ! -f $ofile_target ) {
1624 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n" if $Verbose;
1625 $source_unchanged = 0;
1628 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
1629 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
1631 if ( $hifile_target ne "_stdout" && ! -f $hifile_target ) {
1632 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n" if $Verbose;
1633 $source_unchanged = 0;
1636 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
1637 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
1639 if ( $ofile_target ne "_stdin.s" && $i_mtime > $o_mtime) {
1640 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n" if $Verbose;
1641 $source_unchanged = 0;
1644 # Tell the compiler which version we're using
1645 push(@HsC_flags, "-fhi-version=${ProjectVersionInt}");
1647 # So if source_unchanged is still "1", we pass on the good news to the compiler
1648 # The -recomp flag can disable this, forcing recompilation
1649 if ($Do_recomp_chkr && $source_unchanged) {
1650 push(@HsC_flags, '-fsource-unchanged');
1653 # Indicate whether we're static or not.
1654 # This will only ever
1655 push(@HsC_flags, '-static') if $Static;
1659 &runHsc($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive);
1661 # See if it bailed out early, saying nothing needed doing.
1662 # We work this out by seeing if it created an output .hi file
1664 if ( ! -f $hsc_hi && $ProduceHi !~ /-nohifile=/ ) {
1665 # Doesn't exist, so we bailed out early.
1666 # Tell the C compiler and assembler not to run
1667 $do_cc = 0; $do_as = 0;
1669 # Update dependency info, touch both object file and
1670 # interface file, so that the following invariant is
1673 # a dependent module's interface file should after recompilation
1674 # checking be newer than the interface files of its imports.
1676 # That is, if module A's interface file changes, then module B
1677 # (which import from A) needs to be checked.
1678 # If A's change does not affect B, which causes the compiler to bail
1679 # out early, we still need to touch the interface file of B. The reason
1680 # for this is that B may export A's interface.
1682 &run_something("touch $ofile_target",
1683 "Touch $ofile_target, to propagate dependencies") if $HscOut ne '-N=';
1684 &run_something("touch $hifile_target",
1685 "Touch $hifile_target, to propagate dependencies") if $ProduceHi =~ /-nohifile=/ ;
1689 # Didn't bail out early (new .hi file) so we thunder on
1691 # If non-interactive, heave in the consistency info at the end
1692 # NB: pretty hackish (depends on how $output is set)
1693 if ( ! $going_interactive ) {
1694 if ( $HscOut eq '-C=' ) {
1695 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
1697 } elsif ( $HscOut eq '-S=' ) {
1698 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
1699 $consist =~ s/,/./g;
1700 $consist =~ s/\//./g;
1701 $consist =~ s/-/_/g;
1702 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
1703 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
1705 &run_something($to_do, 'Pin on Haskell consistency info');
1709 # Interface-handling is important enough to live off by itself
1710 if ( $ProduceHi !~ /-nohifile=/ ) { # If we've produced one, process it.
1711 require('ghc-iface.prl') || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
1712 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
1714 # if we're going to split up object files,
1715 # we inject split markers into the .hc file now
1716 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
1717 &inject_split_markers ( $hsc_out );
1720 # save a copy of the .hc file, even if we are carrying on...
1721 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
1722 &saveIntermediate($ifile_root , "hc" , $hsc_out);
1732 local($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive) = @_;
1734 &makeHiMap() unless $HiMapDone;
1735 push(@HsC_flags, "\"-himap=$HiIncludeString\"");
1736 push(@HsC_flags, "\"-himap-sep=${SplitMarker}\"");
1738 # here, we may produce .hc/.s and/or .hi files
1739 local($output) = '';
1740 #@Files_to_tidy = ();
1742 if ( $going_interactive ) {
1743 # don't need .hi unless we're going to show it on stdout:
1744 $ProduceHi = '-nohifile=' if ! ($HiOnStdout || $Specific_hi_file ne '' );
1745 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
1748 # set up for producing output/.hi; note that flag twiddling
1749 # may mean that nothing will actually be produced:
1750 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out -F=$hsc_out_c_stub -FH=$hsc_out_h_stub";
1751 push(@Files_to_tidy, $hsc_hi, $hsc_out, $hsc_out_c_stub, $hsc_out_h_stub );
1753 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
1754 if ( $CollectingGCstats ) {
1755 push(@HsC_rts_flags, "-S$ifile_root.stat");
1756 push(@Files_to_tidy, "$ifile_root.stat");
1759 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
1760 # emit nofibbish time/bytes-alloc stats to stderr;
1761 # see later .stat file post-processing
1762 print STDERR "warning: both -Rgc-stats and -Rghc-timing used, -Rghc-timing wins." if $CollectingGCstats;
1763 push(@HsC_rts_flags, "-S$Tmp_prefix.stat");
1764 push(@Files_to_tidy, "$Tmp_prefix.stat");
1768 if ($Specific_dump_file ne '') {
1769 $dump = "2>> $Specific_dump_file";
1770 $Using_dump_file = 1;
1774 # Win32 only: If the command processor used by system()
1775 # exec()s the application as an ordinary Win32 executable,
1776 # we're in trouble here, since the command line is likely
1777 # to be > 255 chars long. To work around this situation,
1778 # $HsC also understands `at-files', i.e., `@file' on the
1779 # command line will cause $HsC to add the contents of `file'
1780 # to the command line.
1782 # [ Note: support for `at-files' is not compiled in by default ]
1783 $cmd_line_opts_via_at_file=0;
1784 if ($cmd_line_opts_via_at_file) {
1786 local($to_do_opts) = "$Tmp_prefix.opts";
1787 open(OPTS, "> $Tmp_prefix.opts") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.opts\n");
1788 print OPTS "$dump @HsC_flags $CoreLint $USPLint $StgLint $Verbose";
1790 $to_do = "$HsC $hscpp_hsc \@$Tmp_prefix.opts $output +RTS @HsC_rts_flags";
1794 $to_do = "$HsC $hscpp_hsc $dump @HsC_flags $CoreLint $USPLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
1796 &run_something($to_do, 'Haskell compiler');
1798 # finish business w/ nofibbish time/bytes-alloc stats
1799 &process_ghc_timings() if $CollectGhcTimings;
1803 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
1804 of (module-name, pathname) pairs, one per line, separated by a space.
1807 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1811 # collect in %HiMap; write later; also used elsewhere in driver
1813 local($mod, $path, $d, $e);
1815 # reset the global variables:
1817 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1819 foreach $d ( @Import_dir ) {
1820 if ($HiIncludeString) {
1821 $HiIncludeString = "$HiIncludeString${SplitMarker}${d}%.${HiSuffix}";
1823 $HiIncludeString = "$d%.${HiSuffix}";
1828 foreach $d ( @SysImport_dir ) {
1829 if ($HiIncludeString) {
1830 $HiIncludeString = "$HiIncludeString${SplitMarker}${d}%.${HiSuffix_prelude}";
1832 $HiIncludeString = "${d}%.${HiSuffix_prelude}";
1841 Invoke the 'linker' - either the standard linker or the one used to build
1847 local($libdirs) = '';
1849 # append last minute flags linker and consistency flags
1854 # glue them together:
1855 push(@UserLibrary_dir, @SysLibrary_dir);
1857 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1859 # for a linker, use an explicitly given one, or the going C compiler ...
1860 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1862 if ( ($Specific_output_file eq '') &&
1863 ($TargetPlatform eq 'i386-unknown-cygwin32') ) {
1864 $Specific_output_file = 'main.exe';
1865 print STDERR "Output file not specified, defaulting to \"main.exe\"\n";
1868 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1869 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1871 &prepareWin32DllLink(1);
1873 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $libdirs @UserLibrary @SysLibrary";
1874 &run_something($to_do, 'Linker');
1876 # finally, check the consistency info in the binary
1877 local($executable) = $Files_to_tidy[0];
1878 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1881 # dynamically load consistency-chking code; then do it.
1882 require('ghc-consist.prl')
1883 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1885 &chk_consistency_info ( $executable );
1888 # if PVM parallel stuff, we do truly weird things.
1889 # Essentially: (1) move the executable over to where PVM expects
1890 # to find it. (2) create a script in place of the executable
1891 # which will cause the program to be run, via SysMan.
1892 if ( $PARing eq 'p' ) {
1893 local($pvm_executable) = $executable;
1894 local($pvm_executable_base);
1896 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1897 local($pwd) = `pwd`;
1899 $pwd =~ s/^\/tmp_mnt//;
1900 $pvm_executable = "$pwd/$pvm_executable";
1903 $pvm_executable =~ s|/|=|g; # make /s into =s
1904 $pvm_executable_base = $pvm_executable;
1906 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1907 . "/$pvm_executable";
1909 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1911 # OK, now create the magic script for "$executable"
1912 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1913 print EXEC <<EOSCRIPT1;
1914 eval 'exec perl -S \$0 \${1+"\$@"}'
1915 if \$running_under_some_shell;
1916 # =!=!=!=!=!=!=!=!=!=!=!
1917 # This script is automatically generated: DO NOT EDIT!!!
1918 # Generated by Glasgow Haskell, version ${ProjectVersion}
1919 # ngoqvam choHbogh vaj' vIHoHnISbej !!!!
1921 \$pvm_executable = '$pvm_executable';
1922 \$pvm_executable_base = '$pvm_executable_base';
1923 \$SysMan = '$SysMan';
1926 print EXEC <<\EOSCRIPT2;
1927 # first, some magical shortcuts to run "commands" on the binary
1929 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1931 system("$cmd $pvm_executable");
1935 # OK, really run it; process the args first
1936 $ENV{'PE'} = $pvm_executable_base;
1938 $nprocessors = 2; # the default
1942 # ToDo: handle --RTS
1943 args: while ($a = shift(@ARGV)) {
1944 if ( $a eq '+RTS' ) {
1946 } elsif ( $a eq '-RTS' ) {
1949 if ( $a eq '-d' && $in_RTS_args ) {
1951 } elsif ( $a =~ /^-qN(\d+)/ && $in_RTS_args ) {
1953 } elsif ( $a =~ /^-qp(\d+)/ && $in_RTS_args ) {
1956 push(@nonPVM_args, $a);
1960 local($return_val) = 0;
1961 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
1963 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
1966 close(EXEC) || die "Failed closing $executable\n";
1967 chmod 0755, $executable;
1975 # append last minute flags linker and consistency flags
1980 # glue them together:
1981 push(@UserLibrary_dir, @SysLibrary_dir);
1983 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1985 &prepareWin32DllLink(0);
1987 local ($bld_dll) = "dllwrap";
1989 local ($output) = ($Specific_output_file ne '') ? "$Specific_output_file" : 'HSdll.dll';
1990 local ($output_dir);
1991 local ($output_file);
1992 local ($output_lib, $output_def);
1994 ($output_dir = $output) =~ s|(.*/)[^/]+$|$1|;
1995 $output_dir = "" if ($output_dir eq $output);
1996 ($output_file = $output) =~ s|.*/([^/]+)$|$1|;
1998 ($output_lib = $output_file) =~ s|(.+)\.[^\.]*$|${output_dir}lib$1_imp.a|;
1999 ($output_def = $output_file) =~ s|(.+)\.[^\.]*$|${output_dir}$1.def|;
2001 push (@Dll_flags, "-mno-cygwin --target=i386-mingw32") if ($TargetPlatform =~ /^.*mingw32$/);
2002 push (@Dll_flags, "--output-lib $output_lib");
2003 # If the "--def " option hasn't been supplied, assume everything
2004 # is going to be exported via the DLL.."
2005 if (!grep(/--def/, @Dll_flags)) {
2006 push (@Dll_flags, "--export-all --output-def $output_def");
2009 local($to_do) = "$bld_dll @Dll_flags -o $output @Link_file $libdirs @UserLibrary @SysLibrary";
2010 # Make sure the user sees this piece of magic.
2011 print STDERR "$to_do\n" if (!$Verbose);
2012 &run_something($to_do, 'DLL creator');
2015 sub prepareWin32DllLink
2017 local($linking_main) = @_;
2020 # Win32 DLLs - link with import libraries, not the real archives.
2022 if ( $TargetPlatform =~ /-mingw32$/ ) {
2025 # If the libraries have the form libHSfoo.a, we
2026 # transform that into libHSfoo_imp.a - the import
2027 # library of the DLL.
2029 foreach $a ( @SysLibrary ) {
2030 $a = "${a}_imp" if ($a =~ /^-lHS/);
2032 foreach $a ( @UserLibrary ) {
2033 $a = "${a}_imp" if ($a =~ /^-lHS/);
2035 push(@Link_file, ( $INSTALLING ) ? "$InstLibDirGhc/Main.dll_o"
2036 : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/Main.dll_o") if $linking_main;
2037 push(@Link_file, ( $INSTALLING ) ? "$InstLibDirGhc/PrelMain.dll_o"
2038 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std/PrelMain.dll_o") if $linking_main;
2040 push(@Ld_flags, "-mno-cygwin");
2046 %************************************************************************
2048 \section[Driver-misc-utils]{Miscellaneous utilities}
2050 %************************************************************************
2052 %************************************************************************
2054 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
2056 %************************************************************************
2060 local($ofile,$def_suffix) = @_;
2062 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
2066 local($orig_file, $def_suffix) = @_;
2067 if ($Specific_output_dir eq '') { # do nothing
2068 &osuf_ify($orig_file, $def_suffix);
2070 local ($orig_file_only);
2071 ($orig_file_only = $orig_file) =~ s|.*/||;
2072 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
2079 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
2081 local($includes) = '-I' . join(' -I', @Include_dir);
2084 local($c_flags) = "@CcBoth_flags";
2085 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2087 $c_flags .= " -mno-cygwin" if ( $TargetPlatform =~ /-mingw32$/ );
2089 # "input" files to use that are not in some weird directory;
2090 # to help C compilers grok .hc files [ToDo: de-hackify]
2091 local($cc_help) = "ghc$$.c";
2092 local($cc_help_s) = "ghc$$.s";
2095 $s_output = (($is_hc_file && $DoAsmMangling) || $TargetPlatform =~ /^(powerpc|rs6000|hppa)/) ? $cc_as_o : $cc_as;
2096 $c_flags .= " @CcRegd_flags";
2097 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2099 # C compiler won't like the .hc extension. So we create
2100 # a tmp .c file which #include's the needful.
2101 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2102 if ( $is_hc_file ) {
2106 # user may have asked for #includes to be injected...
2107 print TMP @CcInjects if $#CcInjects >= 0;
2109 # Straight .c files may want to know that they're being used
2110 # with a particular version of GHC, so we define __GLASGOW_HASKELL__ for their benefit.
2111 print TMP "#define __GLASGOW_HASKELL__ ${ProjectVersionInt}\n";
2113 # heave in the consistency info
2114 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2116 print TMP "#include \"$hsc_out\"\n";
2117 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2119 # Don't redirect stderr into intermediate file if slamming output onto stdout (e.g., with -E)
2120 local($fuse_stderr) = "2>&1" if ! $Only_preprocess_hc;
2121 local($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 )";
2123 if ( $Only_preprocess_hc ) { # HACK ALERT!
2124 $to_do =~ s/ -S\b//g;
2126 push(@Files_to_tidy, $cc_help, $cc_help_s, $s_output );
2127 $PostprocessCcOutput = 1 if ! $Only_preprocess_hc; # hack, dear hack...
2128 &run_something($to_do, 'C compiler');
2129 $PostprocessCcOutput = 0;
2130 if ( $Only_preprocess_hc ) {
2131 system("$Cat $Tmp_prefix.ccout");
2133 unlink($cc_help, $cc_help_s);
2139 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2141 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2143 if ($is_hc_file && $DoAsmMangling) {
2144 # dynamically load assembler-fiddling code, which we are about to use:
2145 require('ghc-asm.prl')
2146 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2147 # post-process the assembler [.hc files only]
2148 &mangle_asm($cc_as_o, $cc_as);
2150 } elsif ($TargetPlatform =~ /^hppa/) {
2151 # minor mangling of non-threaded files for hp-pa only
2152 require('ghc-asm.prl')
2153 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2154 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2156 } elsif ($TargetPlatform =~ /^powerpc|^rs6000/) {
2157 # minor mangling of non-threaded files for powerpcs and rs6000s
2158 require('ghc-asm.prl')
2159 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-powerpc.prl!\n");
2160 &mini_mangle_asm_powerpc($cc_as_o, $cc_as);
2163 # save a copy of the .s file, even if we are carrying on...
2164 #if ($do_as && $Keep_s_file_too) {
2165 # &saveIntermediate($ifile_root , "s" , $cc_as);
2172 local($as_out, $ifile_root) = @_;
2174 local($asmblr) = ( $As ) ? $As : $CcRegd;
2176 # need to add the -I flags in case the file is going through cpp (.S files)
2177 local($includes) = '-I' . join(' -I', @Include_dir);
2179 if ( ! $SplitObjFiles || $ifile_root =~ /_stub\.s$/ ) {
2180 local($to_do) = "$asmblr -o $as_out -c @As_flags $includes $cc_as";
2181 push(@Files_to_tidy, $as_out );
2182 &run_something($to_do, 'Unix assembler');
2184 } else { # more complicated split-ification...
2186 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2188 # If -odir is used, great, just pin it in front of the
2189 # generated split file names. If it hasn't been set, we
2190 # snatch it from the ifile_root.
2194 if ( $Specific_output_dir eq '' ) {
2195 $Specific_output_dir = ${ifile_root};
2198 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2199 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2200 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2201 push(@Files_to_tidy, $split_out );
2203 &run_something($to_do, 'Unix assembler');
2209 %************************************************************************
2211 \subsection[Driver-run-something]{@run_something@: Run a phase}
2213 %************************************************************************
2217 local($str_to_do, $tidy_name) = @_;
2219 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2220 print STDERR "$str_to_do\n" if $Verbose;
2222 if ($Using_dump_file) {
2223 open(DUMP, ">> $Specific_dump_file")
2224 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2225 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2227 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2230 local($return_val) = 0;
2232 if ( length($str_to_do) > 4000) {
2233 # 4000 - on the random side, just like the *real* ARG_MAX
2236 # With some shells, command lines of this length may
2237 # very well cause trouble. To safeguard against this, we squirrel the
2238 # command into a file and exec that.
2239 local ($sh) = $ENV{'REAL_SHELL'};
2240 print STDERR "Backup plan A: saving cmd line in ${Tmp_prefix}.sh and executing that with $sh\n" if $Verbose;
2241 open (TEMP, "> ${Tmp_prefix}.sh") ||
2242 &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.sh'\n");
2243 print TEMP "$Time $str_to_do\n";
2245 &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.sh'\n");
2246 system("$sh $Tmp_prefix.sh");
2249 unlink "${Tmp_prefix}.sh";
2251 system("$Time $str_to_do");
2255 if ( $PostprocessCcOutput ) { # hack, continued
2256 open(CCOUT, "< $Tmp_prefix.ccout")
2257 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2259 next if /call-clobbered/;
2260 next if /control reaches end/;
2261 next if /from .*Stg\.h:/;
2262 next if /from ghc\d+.c:\d+:/;
2263 next if /: At top level:$/;
2264 next if /: In function \`.*\':$/;
2265 next if /\`ghc_cc_ID\' defined but not used/;
2268 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2271 local($signal_num) = $? & 127;
2272 local($dumped_core) = $? & 128;
2274 if ($signal_num != 0) {
2275 print STDERR "$tidy_name received signal $signal_num";
2276 if ($dumped_core != 0) {
2277 print STDERR " (core dumped)";
2282 if ($return_val != 0) {
2283 if ($Using_dump_file) {
2284 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2286 &tidy_up_and_die($return_val, '');
2289 $Using_dump_file = 0;
2293 %************************************************************************
2295 \subsection[Driver-ghc-timing]{Emit nofibbish GHC timings}
2297 %************************************************************************
2299 NB: nearly the same as in @runstdtest@ script.
2302 sub process_ghc_timings {
2303 local($StatsFile) = "$Tmp_prefix.stat";
2304 local($SysSpecificTiming) = 'ghc';
2306 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2307 local($max_live) = 0;
2308 local($tot_live) = 0; # for calculating residency stuff
2309 local($tot_samples) = 0;
2312 if (! /Gen:\s+0/ && ! /Minor/ && /^\s*\d+\s+\d+\s+(\d+)\s+\d+\.\d+/ ) {
2313 $max_live = $1 if $max_live < $1;
2317 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2319 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2320 $MaxResidency = $1; $ResidencySamples = $2;
2323 $GCs = $1 if /^\s*([0-9,]+) (collections? in generation 0|garbage collections? performed)/;
2325 if ( /^\s+([0-9]+)\s+Mb total memory/ ) {
2329 # The presence of -? in the following pattern is only there to
2330 # accommodate 0.29 && <= 2.05 RTS'
2331 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*-?(\d+\.\d\d)s elapsed\)/ ) {
2332 $InitTime = $1; $InitElapsed = $2;
2333 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2334 $MutTime = $1; $MutElapsed = $2;
2335 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2336 $GcTime = $1; $GcElapsed = $2;
2339 close(STATS) || die "Failed when closing $StatsFile\n";
2340 if ( $tot_samples > 0 ) {
2341 $ResidencySamples = $tot_samples;
2342 $MaxResidency = $max_live;
2343 $AvgResidency = int ($tot_live / $tot_samples) ;
2346 # warn about what we didn't find
2347 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2348 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2349 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2350 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2351 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2352 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2353 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2354 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2356 # things we didn't necessarily expect to find
2357 $MaxResidency = 0 unless defined($MaxResidency);
2358 $AvgResidency = 0 unless defined($AvgResidency);
2359 $ResidencySamples = 0 unless defined($ResidencySamples);
2362 $BytesAlloc =~ s/,//g;
2363 $MaxResidency =~ s/,//g;
2365 $InitTime =~ s/,//g;
2366 $InitElapsed =~ s/,//g;
2368 $MutElapsed =~ s/,//g;
2370 $GcElapsed =~ s/,//g;
2372 # print out what we found
2373 print STDERR "<<$SysSpecificTiming: ",
2374 "$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)",
2375 " :$SysSpecificTiming>>\n";
2382 %************************************************************************
2384 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2386 %************************************************************************
2390 local($to_do) = "\n$Rm $Tmp_prefix*";
2391 if ( $Tmp_prefix !~ /^\s*$/ ) {
2392 print STDERR "$to_do\n" if $Verbose;
2397 sub tidy_up_and_die {
2398 local($return_val, $msg) = @_;
2400 # delete any files to tidy
2401 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2402 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2406 exit (($return_val == 0) ? 0 : 1);
2410 %************************************************************************
2412 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2414 %************************************************************************
2416 Some command-line arguments take an argument, e.g.,
2417 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2418 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2419 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2421 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2422 gobble the second argument (and probably set the heapsize to something
2426 local(*Args, $option, $rest_of_arg) = @_;
2428 if ($rest_of_arg ne '') {
2429 return($rest_of_arg);
2430 } elsif ($#Args >= 0) {
2431 local($temp) = $Args[0]; shift(@Args);
2434 print STDERR "$Pgm: no argument following $option option\n";
2445 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2447 foreach $f ( @HsC_antiflags ) {
2448 return(0) if $flag eq $f;
2450 # foreach $f ( @HsC_flags ) {
2451 # return(0) if $flag eq $f;
2456 sub squashHscFlag { # pretty terrible
2460 foreach $f ( @HsC_flags ) {
2461 if ($flag eq $f) { $f = ''; }
2469 foreach $f ( @flags ) {
2470 push( @HsC_flags, $f ) if &isntAntiFlag($f);
2475 To add another system library, you'll need to augment the
2476 Supported_syslibs variable with name and info on your addition
2477 to the syslib family. The info bit consist of the following:
2479 - interface file directory
2480 see the misc or posix entry for how to distinguish
2481 between using installed and build tree directories.
2483 - directory location of archives
2485 - location of (way-independent) C support libs.
2486 not all libraries need this - if you don't, just
2487 give the empty string.
2488 - list of syslibs you depend on.
2490 - additional ghc command line flags that should be used.
2491 - additional C compiler command line flags that should be used.
2497 # Hash to keep track of
2498 %Syslibs_added = ();
2501 local($syslib) = @_;
2503 # Lifting this out of this sub brings it out of scope - why??
2504 %Supported_syslibs =
2506 [ # where to slurp interface files from
2508 ? "$InstLibDirGhc/imports/lang"
2509 : "$TopPwd/hslibs/lang:$TopPwd/hslibs/lang/monads"
2511 , # where to find the archive to use when linking
2514 : "$TopPwd/hslibs/lang"
2516 , # where to find the cbits archive to use when linking
2519 : "$TopPwd/hslibs/lang/cbits"
2521 , '' # Syslib dependencies
2522 , '' # extra ghc opts
2523 , '' # extra cc opts
2524 , '' # extra ld opts
2528 [ # where to slurp interface files from
2530 ? "$InstLibDirGhc/imports/concurrent"
2531 : "$TopPwd/hslibs/concurrent"
2533 , # where to find the archive to use when linking
2536 : "$TopPwd/hslibs/concurrent"
2538 , '' # where to find the cbits archive to use when linking
2539 , '' # Syslib dependencies
2540 , '' # extra ghc opts
2541 , '' # extra cc opts
2542 , '' # extra ld opts
2546 [ # where to slurp interface files from
2548 ? "$InstLibDirGhc/imports/data"
2549 : "$TopPwd/hslibs/data:$TopPwd/hslibs/data/edison:$TopPwd/hslibs/data/edison/Assoc:$TopPwd/hslibs/data/edison/Coll:$TopPwd/hslibs/data/edison/Seq"
2551 , # where to find the archive to use when linking
2554 : "$TopPwd/hslibs/data"
2556 , '' # where to find the cbits archive to use when linking
2557 , '' # Syslib dependencies
2558 , '' # extra ghc opts
2559 , '' # extra cc opts
2560 , '' # extra ld opts
2564 [ # where to slurp interface files from
2566 ? "$InstLibDirGhc/imports/net"
2567 : "$TopPwd/hslibs/net"
2569 , # where to find the archive to use when linking
2572 : "$TopPwd/hslibs/net"
2574 , # where to find the cbits archive to use when linking
2577 : "$TopPwd/hslibs/net/cbits"
2579 , 'lang text' # Syslib dependencies
2580 , '' # extra ghc opts
2581 , '' # extra cc opts
2582 , ( $TargetPlatform =~ /-solaris2$/ ? '-lnsl -lsocket' : '')
2586 [ # where to slurp interface files from
2588 ? "$InstLibDirGhc/imports/posix"
2589 : "$TopPwd/hslibs/posix"
2591 , # where to find the archive to use when linking
2594 : "$TopPwd/hslibs/posix"
2596 , # where to find the cbits archive to use when linking
2599 : "$TopPwd/hslibs/posix/cbits"
2601 , 'lang' # Syslib dependencies
2602 , '' # extra ghc opts
2603 , '' # extra cc opts
2604 , '' # extra ld opts
2608 [ # where to slurp interface files from
2610 ? "$InstLibDirGhc/imports/text"
2611 : "$TopPwd/hslibs/text:$TopPwd/hslibs/text/html"
2613 , # where to find the archive to use when linking
2616 : "$TopPwd/hslibs/text"
2618 , # where to find the cbits archive to use when linking
2621 : "$TopPwd/hslibs/text/cbits"
2623 , 'lang' # Syslib dependencies
2624 , '' # extra ghc opts
2625 , '' # extra cc opts
2626 , '' # extra ld opts
2630 [ # where to slurp interface files from
2632 ? "$InstLibDirGhc/imports/util"
2633 : "$TopPwd/hslibs/util"
2635 , # where to find the archive to use when linking
2638 : "$TopPwd/hslibs/util"
2640 , # where to find the cbits archive to use when linking
2643 : "$TopPwd/hslibs/util/cbits"
2645 , 'lang concurrent' # Syslib dependencies
2646 , '' # extra ghc opts
2647 , '' # extra cc opts
2648 , '' # extra ld opts
2652 [ # where to slurp interface files from
2654 ? "$InstLibDirGhc/imports/win32"
2655 : "$TopPwd/hslibs/win32/src"
2657 , # where to find the archive to use when linking
2660 : "$TopPwd/hslibs/win32/src"
2663 , 'lang' # Syslib dependencies
2664 , '' # extra ghc opts
2665 , '' # extra cc opts
2666 , '-luser32 -lgdi32' # extra ld opts
2670 [ # where to slurp interface files from
2672 ? "$InstLibDirGhc/imports/com"
2673 : "$TopPwd/hdirect/lib"
2675 , # where to find the archive to use when linking
2678 : "$TopPwd/hdirect/lib"
2681 , 'lang' # Syslib dependencies
2682 , '' # extra ghc opts
2683 , '' # extra cc opts
2684 , '-luser32 -lole32 -loleaut32 -ladvapi32'
2689 # check if it's supported..
2691 if ( !exists $Supported_syslibs{$syslib} ) {
2692 print STDERR "$Pgm: no such system library (-syslib): $syslib\n";
2697 # This check is here to avoid syslib loops from
2698 # spoiling the party. A side-effect of it is that
2699 # it disallows multiple mentions of a syslib on a command-line,
2700 # explicit *and* implicit ones (i.e., "-syslib lang -syslib misc"
2701 # is not equal to "-syslib lang -syslib misc -syslib lang",
2702 # which it needs to be)
2704 # Since our current collection of syslibs don't have any
2705 # loops, this test is disabled.
2707 # ToDo: loop avoidance scheme when the need arises
2709 #return if ( exists $Syslibs_added{$syslib} );
2711 $Syslibs_added{$syslib} = 1;
2713 local ($hi_dirs, $lib_dir, $lib_cbits_dir,
2714 $syslib_deps, $syslib_ghc_opts,
2715 $syslib_cc_opts, $syslib_ld_opts) = @{ $Supported_syslibs{$syslib} };
2717 foreach(split(':',$hi_dirs)) {
2718 unshift(@SysImport_dir, $_);
2720 push(@SysLibrary_dir, $lib_dir);
2721 push(@SysLibrary_dir, $lib_cbits_dir) if ( $lib_cbits_dir ne '');
2723 push(@SysLibrary, "-lHS$syslib");
2724 push(@SysLibrary, "-lHS${syslib}_cbits") if ( $lib_cbits_dir ne '');
2725 push(@SysLibrary, $syslib_ld_opts) if ($syslib_ld_opts ne '');
2727 # Add on any extra dependencies.
2728 foreach $lib (split(' ',$syslib_deps)) {
2734 Source files may have {-# OPTIONS ... #-} pragmas at the top, containing
2735 command line options we want to append to collection of commands specified
2736 directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell
2737 file for any such pragmas:
2740 sub check_for_source_options {
2741 local($file,$ifile) = @_;
2742 local($comment_start,$comment_end);
2744 if ($ifile =~ /\.hc$/ ||
2747 $ifile =~ /_s$/ ) { # `Real' C intermediate
2748 $comment_start = "/\\*";
2749 $comment_end = "\\*/";
2750 } else { # Assume it is a file containing Haskell source
2751 $comment_start = "{-#";
2752 $comment_end = "#-}";
2755 open(FILE,$file) || return(1); # No big loss
2758 if ( /^${comment_start} OPTIONS (.*)${comment_end}/ ) {
2759 # add the options found at the back of the command line.
2760 local(@entries) = split(/\s+/,$1);
2761 print STDERR "Found OPTIONS " . join(' ',@entries) . " in $file\n" if $Verbose;
2762 push(@File_options, @entries);
2764 elsif ( /^$/ ) { # ignore empty lines
2767 elsif ( /^#line.+$/ ) { # ignore comment lines (unused..ToDo: rm )
2770 elsif ( /^{-# LINE.+$/ ) { # ignore line pragmas
2773 else { # stop looking, something non-empty / not
2774 # ${comment_start} OPTIONS .. ${comment_end} encountered.
2775 close(FILE);return(0);
2784 We split the initial argv up into three arrays:
2790 the reason for doing so is to be able to deal
2791 with {-# OPTIONS #-} pragma in source files properly.
2797 arg: while($_ = $args[0]) {
2799 # sigh, we have to deal with these -option arg specially here.
2800 /^-(tmpdir|odir|ohi|o|isuf|osuf|hisuf|odump|syslib)$/ &&
2801 do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; };
2802 /^--?./ && do { push(@Cmd_opts, $_); next arg; };
2804 if (/\.([^_]+_)?[oa]$/) {
2805 push(@Link_file, $_);
2807 push(@Input_file, $_);
2810 # input files must exist:
2812 print STDERR "$Pgm: input file doesn't exist: $_\n";
2820 When saving an intermediate file (.hc or .s) away, we
2821 have to prefix any OPTIONS found in the original source file.
2824 sub saveIntermediate {
2825 local ($final,$suffix,$tmp)= @_ ;
2828 local ($new_suffix);
2830 # $final -- root of where to park ${final}.${suffix}
2831 # $tmp -- temporary file where hsc put the intermediate file.
2833 # HWL: use -odir for .hc and .s files, too
2834 if ( $Specific_output_dir ne '' ) {
2835 $final = "${Specific_output_dir}/${final}";
2837 # HWL: use the same suffix as for $Osuffix in generating intermediate file,
2838 # replacing o with hc or s, respectively.
2839 if ( $Osuffix ne '' ) {
2840 ($new_suffix = $Osuffix) =~ s/o$/hc/ if $suffix eq "hc";
2841 ($new_suffix = $Osuffix) =~ s/o$/s/ if $suffix eq "s";
2842 $suffix = $new_suffix;
2843 print stderr "HWL says: suffix for intermediate file is $suffix; ${final}.${suffix} overall\n" if $Verbose;
2846 # Delete the old file
2847 $to_do = "$Rm ${final}.${suffix}"; &run_something($to_do, "Removing old .${suffix} file");
2849 if ( $#File_options >= 0 ) { # OPTIONS found in Haskell source unit
2850 # Add OPTION comment to the top of the generated .${suffix} file
2851 open(TEMP, "> ${final}.${suffix}") || &tidy_up_and_die(1,"Can't open ${final}.${suffix}\n");
2852 print TEMP "/* OPTIONS " . join(' ',@File_options) . " */\n";
2854 print STDERR "Prepending OPTIONS: " . join(' ',@File_options) . " to ${final}.${suffix}\n" if $Verbose;
2856 $to_do = "$Cat $tmp >> ${final}.${suffix}";
2857 &run_something($to_do, "Saving copy of .${suffix} file");
2864 Command-line processor
2870 # can't use getopt(s); what we want is too complicated
2872 arg: while($_ = $Args[0]) {
2875 #---------- help -------------------------------------------------------
2876 if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; }
2878 #-----------version ----------------------------------------------------
2879 /^--version$/ && do { print STDERR "${ProjectName}, version ${ProjectVersion}\n"; exit $Status; };
2881 #---------- verbosity and such -----------------------------------------
2882 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
2884 #---------- what phases are to be run ----------------------------------
2885 /^-(no-)?recomp/ && do { $Do_recomp_chkr = ($1 eq '') ? 1 : 0; next arg; };
2887 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
2888 # change the global default:
2889 # we won't run cat; we'll run the real thing
2891 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
2893 # stop after generating C
2895 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
2896 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
2898 # leave out actual C generation (debugging) [also turns off interface gen]
2901 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
2902 # _do_ generate an interface; usually used as: -noC -hi
2903 /^-hi-with-(.*)$/ && do { $HiOnStdout = 1; $HiWith .= " $1" ; $ProduceHi = '-hifile='; next arg; };
2904 # limit ourselves to outputting a particular section.
2906 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
2907 # don't generate an interface (even if generating C)
2909 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
2910 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
2911 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
2912 /^-keep-hi-diffs$/ && do { $Keep_HiDiffs = 1; next arg; };
2914 # show/disable diffs if the interface file changes
2916 /^-E$/ && do { push(@CcBoth_flags, '-E');
2917 $Only_preprocess_C = 1;
2918 $Do_as = 0; $Do_lnkr = 0; next arg; };
2919 # stop after preprocessing C
2920 /^-M$/ && do { $Only_generate_deps = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2921 # only generate dependency information.
2922 /^--mk-dll$/ && do { $Only_generate_dll = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2923 # Build a Win32 DLL (where supported).
2924 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
2925 # stop after generating assembler
2927 /^-c$/ && do { $Do_lnkr = 0; next arg; };
2928 # stop after generating .o files
2930 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
2931 # don't do consistency-checking after a link
2932 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
2934 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', '');
2935 $Tmp_prefix = "$Tmp_prefix/ghc$$";
2936 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
2938 # use an alternate directory for temp files
2940 #---------- redirect output --------------------------------------------
2942 # -o <file>; applies to the last phase, whatever it is
2943 # "-o -" sends it to stdout
2944 # if <file> has a directory component, that dir must already exist
2946 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', '');
2948 # Hack, of the worst sort: don't do validation of
2949 # odir argument if you're using -M (dependency generation).
2951 if ( ! $Only_generate_deps && ! -d $Specific_output_dir) {
2952 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
2957 /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', '');
2958 if ($Specific_output_file ne '-'
2959 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
2960 local($dir_part) = $1;
2961 if (! -d $dir_part) {
2962 print STDERR "$Pgm: no such directory: $dir_part\n";
2968 # NB: -isuf not documented yet (because it doesn't work yet)
2969 /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', '');
2970 if ($Isuffix =~ /\./ ) {
2971 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
2976 /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', '');
2977 if ($Osuffix =~ /\./ ) {
2978 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
2983 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
2984 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', '');
2985 if ($Specific_hi_file ne '-'
2986 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
2987 local($dir_part) = $1;
2988 if (! -d $dir_part) {
2989 print STDERR "$Pgm: no such directory: $dir_part\n";
2993 $ProduceHi='-hifile=';
2996 # The suffix to use when looking for interface files
2997 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', '');
2998 if ($HiSuffix =~ /\./ ) {
2999 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
3003 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', '');
3004 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
3005 local($dir_part) = $1;
3006 if (! -d $dir_part) {
3007 print STDERR "$Pgm: no such directory: $dir_part\n";
3013 #-------------- scc & Profiling Stuff ----------------------------------
3015 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
3017 /^-auto-dicts$/ && do {
3018 $PROFdicts = '-fauto-sccs-on-dicts';
3020 /^-auto-all$/ && do {
3021 $PROFauto = '-fauto-sccs-on-all-toplevs';
3024 $PROFauto = '-fauto-sccs-on-exported-toplevs';
3027 /^-caf-all/ && do { # generate individual CAF SCC annotations
3028 $PROFcaf = '-fauto-sccs-on-individual-cafs';
3031 /^-ignore-scc$/ && do {
3032 # forces ignore of scc annotations even if profiling
3033 $PROFignore_scc = '-W';
3036 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
3039 /^-unprof-scc-auto/ && do {
3040 # generate auto SCCs on top level bindings when not profiling.
3041 # Used to measure optimisation effects of presence of sccs.
3042 $UNPROFscc_auto = ( /-all/ )
3043 ? '-fauto-sccs-on-all-toplevs'
3044 : '-fauto-sccs-on-exported-toplevs';
3047 #--------- ticky/parallel ----------------------------------------------
3048 # we sort out the details a bit later on
3050 /^-gransim$/ && do { $GRANing = 'g'; &add_syslib('concurrent'); next arg; }; # GranSim
3051 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
3052 /^-parallel$/ && do { $PARing = 'p'; &add_syslib('concurrent'); next arg; }; # parallel Haskell
3053 /^-smp$/ && do { $SMPing = 's'; &add_syslib('concurrent'); next arg; }; # parallel Haskell
3055 #-------------- "user ways" --------------------------------------------
3057 (/^-user-setup-([a-oA-Z])$/ ) &&
3059 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
3061 local($stuff) = $UserSetupOpts{$BuildTag};
3062 local(@opts) = split(/\s+/, $stuff);
3064 # feed relevant ops into the arg-processing loop (if any)
3065 unshift(@Args, @opts) if $#opts >= 0;
3069 #---------- set search paths for libraries and things ------------------
3071 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
3072 # prepends the items to the list); -I is for including C .h files.
3074 /^-i$/ && do { @Import_dir = (); # import path cleared!
3075 @SysImport_dir = ();
3076 print STDERR "WARNING: import paths cleared by `-i'\n";
3079 /^-i(.*)/ && do { local(@new_items);
3083 if ( $arg =~ /;/ ) {
3085 @new_items = split( /;/, &grab_arg_arg(*Args,'-i', $arg));
3087 @new_items = split( /:/, &grab_arg_arg(*Args,'-i', $arg));
3089 unshift(@Import_dir, @new_items);
3092 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; };
3093 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; };
3094 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; };
3096 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1);
3097 &add_syslib($syslib);
3100 #=======================================================================
3101 # various flags that we can harmlessly send to one program or another
3102 # (we will later "reclaim" some of the compiler ones now sent to gcc)
3103 #=======================================================================
3105 #---------- this driver itself (ghc) -----------------------------------
3106 # these change what executable is run for each phase:
3107 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
3108 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
3109 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
3110 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
3111 /^-pgma(.*)$/ && do { $As = $1; next arg; };
3112 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
3113 /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; };
3115 #---------- the get-anything-through opts (all pgms) -------------------
3116 # these allow arbitrary option-strings to go to any phase:
3117 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
3118 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
3119 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
3120 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
3121 /^-optcpp(.*)$/ && do { push(@Cpp_define, $1); $Only_preprocess_hc = ($1 eq "-E"); next arg; };
3122 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
3123 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
3124 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
3125 /^-optdll(.*)$/ && do { push(@Dll_flags, $1); next arg; };
3126 /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; };
3128 #---------- Haskell C pre-processor (hscpp) ----------------------------
3129 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; };
3130 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; };
3132 #---------- post-Haskell "assembler"------------------------------------
3133 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
3134 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
3136 #---------- Haskell compiler (hsc) -------------------------------------
3138 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
3139 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
3141 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
3142 /^-fignore-asserts$/ && do { push(@HsC_flags, $_); next arg; };
3144 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
3147 # have the compiler proper generate concurrent code,
3148 # really only used when you want to configure your own
3149 # special user compilation way.
3151 # (ditto for -fgransim, fscc-profiling, -fparallel and -fticky-ticky)
3153 /^-fscc-profiling$/ && do { push(@HsC_flags,$_); next arg; };
3154 /^-fticky-ticky$/ && do { push(@HsC_flags,$_); next arg; };
3155 /^-fgransim$/ && do { push(@HsC_flags,$_); next arg; };
3156 /^-fparallel$/ && do { push(@HsC_flags,$_); next arg; };
3157 /^-fsmp$/ && do { push(@HsC_flags,$_); next arg; };
3159 /^-split-objs$/ && do {
3160 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|rs6000|sparc)-/ ) {
3162 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
3167 push(@HsC_flags, "-fglobalise-toplev-names");
3168 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
3170 require('ghc-split.prl')
3171 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
3175 /^-unreg$/ && do { $UNREGing = 'u'; next arg; };
3176 /^-funregisterised$/ && do { push(@HsC_flags, $_); next arg; };
3177 /^-fno-asm-mangling$/ && do { $DoAsmMangling = 0; next arg; };
3179 /^-fallow-overlapping-instances$/ && do { push(@HsC_flags, $_); next arg; };
3180 /^-fallow-undecidable-instances$/ && do { push(@HsC_flags, $_); next arg; };
3181 /^-fhistory-size.*$/ && do { push(@HsC_flags, $_); next arg; };
3182 /^-fdicts-strict$/ && do { push(@HsC_flags, $_); next arg; };
3184 && do { push(@HsC_flags, $_);
3186 # -fglasgow-exts implies -syslib lang
3187 &add_syslib('lang');
3192 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
3193 /^-fno-speciali[sz]e$/
3194 && do { $Oopt_DoSpecialise = ''; next arg; };
3197 && do { $Oopt_UsageSPInf = '-fusagesp';
3198 push (@HsC_flags, '-fusagesp-on'); next arg; };
3200 /^-fcompiling-prelude$/ && do { $CompilingPrelude=1; push(@HsC_flags, $_); next arg; };
3202 # Now the foldr/build options, which are *on* by default (for -O).
3205 && do { $Oopt_FoldrBuild = 1;
3209 /^-fno-foldr-build$/
3210 && do { $Oopt_FoldrBuild = 0;
3213 # --------------- Renamer -------------
3216 /^-fno-prune-tydecls$/ && do { push(@HsC_flags, $_); next arg; };
3217 /^-fno-prune-instdecls$/ && do { push(@HsC_flags, $_); next arg; };
3221 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
3222 /^-fvia-[cC]$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
3227 && do { push(@HsC_flags, $_); next arg };
3229 /^-fliberate-case-.*$/
3230 && do { push(@HsC_flags, $_); next arg };
3232 /^-funfold-casms-in-hi-file$/
3233 && do { push(@HsC_flags, $_); next arg };
3235 /^(-fmax-simplifier-iterations)(.*)$/
3236 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2);
3239 /^-fno-pedantic-bottoms$/
3240 && do { $Oopt_PedanticBottoms = ''; next arg; };
3242 /^-fno-pre-inlining$/
3243 && do { push(@HsC_flags, $_); next arg };
3245 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
3246 && do { push(@HsC_flags, $_); next arg; };
3248 /^-funbox-strict-fields$/
3249 && do { push(@HsC_flags, $_); next arg; };
3251 # --------------- Warnings etc. ------
3253 /^-fwarn-(.*)$/ && do { push(@HsC_flags, $_); next arg; };
3255 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
3256 &squashHscFlag("-f$1");
3259 /^-W$/ && do { push(@HsC_flags, @MinusWOpts); next arg; };
3260 /^-Wall$/ && do { push(@HsC_flags, @MinusWallOpts); next arg; };
3261 /^(-Wnot|w)$/ && do { foreach (@Hsc_flags) {
3262 /^-fwarn-(.*)$/ && do { $_=''; };
3264 push(@HsC_antiflags, @StandardWarnings);
3267 # --------------- fun stuff ----------------
3269 /^-freport-compile$/ && do { push(@HsC_flags, $_); next arg; };
3271 # --------------- platform specific flags (for gcc mostly) ----------------
3273 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes,
3274 # for 2.6.x..?, does not apply for 2.7.2
3276 unshift(@CcBoth_flags, ( $_ ));
3279 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
3280 && do { # for GCC for SPARCs
3281 unshift(@CcBoth_flags, ( $_ ));
3284 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
3285 $StolenX86Regs = $1;
3288 #*************** ... and lots of debugging ones (form: -d* )
3290 # -d(no-)core-lint is done this way so it is turn-off-able.
3291 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
3292 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
3293 # Ditto for USP lint
3294 /^-dusagesp-lint/ && do { $USPLint = '-dusagesp-lint'; next arg; };
3295 /^-dno-usagesp-lint/ && do { $USPLint = ''; next arg; };
3296 # Ditto for STG lint
3297 /^-dstg-lint/ && do { $StgLint = '-dstg-lint'; next arg; };
3298 /^-dno-stg-lint/ && do { $StgLint = ''; next arg; };
3300 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
3301 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
3302 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
3303 /^-dshow-rn-stats/ && do { push(@HsC_flags, $_); next arg; };
3304 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
3305 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
3306 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
3307 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
3309 #*************** ... and now all these -R* ones for its runtime system...
3311 /^-Rscale-sizes?(.*)/ && do {
3312 $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1);
3315 /^(-H|-Rmax-heapsize)(.*)/ && do {
3316 local($heap_size) = &grab_arg_arg(*Args,$1, $2);
3317 if ($heap_size =~ /(\d+)[Kk]$/) {
3318 $heap_size = $1 * 1000;
3319 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
3320 $heap_size = $1 * 1000 * 1000;
3321 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
3322 $heap_size = $1 * 1000 * 1000 * 1000;
3324 if ($heap_size <= 0) {
3325 print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n";
3326 $Specific_heap_size = 0;
3328 # if several heap sizes given, take the largest...
3329 } elsif ($heap_size >= $Specific_heap_size) {
3330 $Specific_heap_size = $heap_size;
3332 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n" if $Verbose;
3336 /^(-K|Rmax-(stk|stack)size)(.*)/ && do {
3338 local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3);
3339 if ($stk_size =~ /(\d+)[Kk]$/) {
3340 $stk_size = $1 * 1000;
3341 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
3342 $stk_size = $1 * 1000 * 1000;
3343 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
3344 $stk_size = $1 * 1000 * 1000 * 1000;
3346 if ($stk_size <= 0) {
3347 print STDERR "$Pgm: resetting stack-size to zero!!! $stk_size\n";
3348 $Specific_stk_size = 0;
3350 # if several stack sizes given, take the largest...
3351 } elsif ($stk_size >= $Specific_stk_size) {
3352 $Specific_stk_size = $stk_size;
3354 print STDERR "$Pgm: ignoring stack-size-setting option ($flag $stk_size)...not the largest seen\n" if $Verbose;
3358 /^-Rgc-stats$/ && do { $CollectingGCstats++;
3359 # the two RTSs do this diff ways; we will try to compensate
3362 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
3364 #---------- C high-level assembler (gcc) -------------------------------
3365 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
3367 # -dgcc-lint is a useful way of making GCC very fussy.
3368 # From alan@spri.levels.unisa.edu.au (Alan Modra).
3369 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
3370 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
3371 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
3373 # inject "#include <wurble>" into the compiler's C output!
3375 /^-#include(.*)/ && do {
3376 local($to_include) = &grab_arg_arg(*Args,'-#include', $1);
3377 push(@CcInjects, "#include $to_include\n");
3380 #---------- Linker (gcc, really) ---------------------------------------
3382 /^-static$/ && do { $Static=1; push(@Ld_flags, $_); next arg; };
3383 /^-no-hs-main$/ && do { $NoHaskellMain=1; next arg; };
3385 #---------- mixed cc and linker magic ----------------------------------
3386 # this optimisation stuff is finally sorted out later on...
3388 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
3390 /^-O[1-2]?$/ && do {
3391 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
3392 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
3394 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
3397 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
3399 /^-Ofile(.*)/ && do {
3401 local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1);
3402 @HsC_minusO3_flags = ();
3404 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
3407 s/\#.*//; # death to comments
3408 s/[ \t]+//g; # death to whitespace
3409 next if /^$/; # ditto, blank lines
3410 s/([()*{}])/\\$1/g; # protect shell metacharacters
3412 push(@CcBoth_flags, $1);
3414 push(@HsC_minusO3_flags, $_);
3420 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
3421 # in the consistency info
3425 #---------- linking .a file --------------------------------------------
3427 /^-Main(.*)/ && do {
3428 # specifies main or mainPrimIO to be linked
3432 #---------- catch unrecognized flags -----------------------------------
3435 print STDERR "$Pgm: unrecognised option: $_\n";
3441 } # end of processArgs