2 % (c) The GRASP/AQUA Project, Glasgow University, 1992-1997
5 This is the driver script for the Glasgow Haskell compilation system.
6 It is written in \tr{perl}. The first section includes a long
7 ``usage'' message that describes how the driver is supposed to work.
9 %************************************************************************
11 \section[Driver-usage]{Usage message}
13 %************************************************************************
16 ($Pgm = $0) =~ s|.*/||;
17 $ShortUsage = "\nUsage: For basic information, try the `-help' option.\n";
18 $LongUsage = "\n" . <<EOUSAGE;
19 Use of the Glorious Haskell Compilation System driver:
21 $Pgm [command-line-options-and-input-files]
23 ------------------------------------------------------------------------
24 This driver ($Pgm) guides each input file through (some of the)
25 possible phases of a compilation:
27 - unlit: extract code from a "literate program"
28 - hscpp: run code through the C pre-processor (if -cpp flag given)
29 - hsc: run the Haskell compiler proper
30 - gcc: run the C compiler (if compiling via C)
31 - as: run the assembler
34 For each input file, the phase to START with is determined by the
36 - .lhs literate Haskell: unlit
37 - .hs illiterate Haskell: hsc
38 - .hc C from the Haskell compiler: gcc
39 - .c C not from the Haskell compiler: gcc
40 - .s assembly language: as
41 - other passed directly to the linker: ld
43 If no files are given on the command line, input is taken from
44 standard input, and processing is as for an .hs file. (All output is
45 to stdout or stderr, however).
47 The phase at which to STOP processing is determined by a command-line
49 -E stop after generating preprocessed, de-litted Haskell (used in conjunction with -cpp)
50 -C stop after generating C (.hc output)
51 -S stop after generating assembler (.s output)
52 -c stop after generating object files (.o output)
54 Other commonly-used options are:
56 -O An `optimising' package of compiler flags, for faster code
58 -prof Compile for cost-centre profiling
59 (add -auto for automagic cost-centres on top-level functions)
61 -fglasgow-exts Allow Glasgow extensions (unboxed types, etc.)
63 -H14m Increase compiler's heap size
65 -M Output the Makefile rules recording the
66 dependencies of a list of Haskell files.
67 (ghc driver script calls upon the help of a
68 compatible mkdependHS script to do the actual
71 The User's Guide has more information about GHC's *many* options.
73 Given the above, here are some TYPICAL invocations of $Pgm:
75 # compile a Haskell module to a .o file, optimising:
77 # link three .o files into an executable called "test":
78 % $Pgm -o test Foo.o Bar.o Baz.o
79 # compile a Haskell module to C (a .hc file), using a bigger heap:
80 % $Pgm -C -H16m Foo.hs
81 # compile Haskell-produced C (.hc) to assembly language:
83 ------------------------------------------------------------------------
87 %************************************************************************
89 \section[Driver-init]{Initialisation}
91 %************************************************************************
93 The driver script need to be told where to find these executables, so
94 in the course of building the driver `executable', make-variables holding
95 these are prepended to the de-litted version of this file. The variables are:
100 HOSTPLATFORM TARGETPLATFORM
102 ProjectName ProjectVersion ProjectVersionInt ProjectPatchLevel
106 bindir libdir libexecdir datadir
110 GHC_LIB_DIR GHC_RUNTIME_DIR GHC_UTILS_DIR GHC_INCLUDE_DIR
112 GHC_OPT_HILEV_ASM GhcWithNativeCodeGen
114 GHC_UNLIT GHC_HSCPP GHC_HSC GHC_SYSMAN
118 WAY_*_NAME WAY_*_HC_OPTS
124 Establish what executables to run for the various phases, what the
125 default options are for those phases, and other similar boring stuff.
128 select(STDERR); $| = 1; select(STDOUT); # no STDERR buffering, please.
130 $TargetPlatform = $TARGETPLATFORM;
132 $TopPwd = "${TOP_PWD}";
133 $InstBinDirGhc = "${bindir}";
134 $InstLibDirGhc = "${libdir}";
136 # Normally the same as InstLibDirGhc, but we accommodate
137 # for it being separate.
139 $InstLibExecDirGhc = "${libexecdir}";
140 $InstDataDirGhc = "${datadir}";
142 $Status = 0; # just used for exit() status
145 # set up signal handler
146 sub quit_upon_signal { &tidy_up_and_die(1, ''); }
147 $SIG{'INT'} = 'quit_upon_signal';
148 $SIG{'QUIT'} = 'quit_upon_signal';
150 # where to get "require"d .prl files at runtime (poor man's dynamic loading)
151 # (use LIB, not DATA, because we can't be sure of arch-independence)
152 @INC = ( ( $INSTALLING ) ? $InstLibDirGhc
153 : "$TopPwd/${CURRENT_DIR}" );
155 if ( $ENV{'TMPDIR'} ) { # where to make tmp file names
156 $Tmp_prefix = ($ENV{'TMPDIR'} . "/ghc$$");
158 print STDERR "TMPDIR has not been set to anything useful!\n" if (${TMPDIR} eq '');
159 $Tmp_prefix ="${TMPDIR}/ghc$$"; # TMPDIR set via Makefile when booting..
160 $ENV{'TMPDIR'} = ${TMPDIR}; # set the env var as well
163 # Some shells run into real trouble when command line and environment
164 # gets big (e.g., cmd lines of >4K to /bin/sh causes havoc on our
165 # Solaris-2.5.1 boxes - even though sysconf(_SC_ARG_MAX) reports 1M ...).
166 # To work around any such */bin/sh* problems, we will scribble such
167 # awfully long command lines into a temp file and exec that temp file
168 # with $(REAL_SHELL) (don't use the SHELL variable directly as this
169 # will normally get you the wrong thing when the driver is invoked
170 # from within `make'). If the REAL_SHELL variable isn't set, you'll
171 # get SHELL. This is all a terrible hack. (in case you hadn't reached
172 # the same conclusion by now :-)
176 if ( ! $ENV{'REAL_SHELL'} ) {
177 $ENV{'REAL_SHELL'} = $ENV{'SHELL'};
180 @Files_to_tidy = (); # files we nuke in the case of abnormal termination
182 $Unlit = ( $INSTALLING ) ? "$InstLibExecDirGhc/unlit"
183 : "$TopPwd/${CURRENT_DIR}/${GHC_UNLIT}";
187 $Diff = $CONTEXT_DIFF;
192 $HsCpp = # but this is re-set to "cat" (after options) if -cpp not seen
193 ( $INSTALLING ) ? "$InstLibExecDirGhc/hscpp"
194 : "$TopPwd/${CURRENT_DIR}/${GHC_HSCPP}";
197 $HsC = ( $INSTALLING ) ? "$InstLibExecDirGhc/hsc"
198 : "$TopPwd/${CURRENT_DIR}/${GHC_HSC}";
200 # For PVM fiends only
201 $SysMan = ( $INSTALLING ) ? "$InstLibExecDirGhc/SysMan"
202 : "$TopPwd/${CURRENT_DIR}/${GHC_SYSMAN}";
207 # HsC_rts_flags: if we want to talk to the LML runtime system
208 # NB: we don't use powers-of-2 sizes, because this may do
209 # terrible things to cache behavior.
211 $Specific_heap_size = 6 * 1000 * 1000;
212 $Specific_stk_size = 1000 * 1000;
213 $Scale_sizes_by = 1.0;
217 The variables set by @setupOptFlags@ represent parts of the
218 -O/-O2/etc ``templates,'' which are filled in later, using these.
219 These are the default values, which may be changed by user flags.
223 $Oopt_MaxSimplifierIterations = '-fmax-simplifier-iterations4';
224 $Oopt_PedanticBottoms = '-fpedantic-bottoms'; # ON by default
225 $Oopt_MonadEtaExpansion = '';
226 $Oopt_FinalStgProfilingMassage = '';
228 $Oopt_SpecialiseUnboxed = '';
229 $Oopt_DoSpecialise = '-fspecialise';
230 $Oopt_FoldrBuild = 0; # *Off* by default!
231 $Oopt_FB_Support = ''; # was '-fdo-arity-expand';
232 # $Oopt_FoldrBuildWW = 0; # Off by default
233 $Oopt_FoldrBuildInline = ''; # was '-fdo-inline-foldr-build';
234 $Oopt_ShowSimplifierProgress = '';
235 } # end of setupOptFlags
237 # Assign defaults to these right away.
241 Things to do with C compilers/etc:
243 $CcRegd = $GHC_OPT_HILEV_ASM;
244 @CcBoth_flags = ('-S'); # flags for *any* C compilation
248 # those for all files,
249 # those only for .c files;
250 # those only for .hc files
252 @CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__');
253 @CcRegd_flags_c = ();
254 @CcRegd_flags_hc = ();
256 $As = ''; # "assembler" is normally GCC
259 $Lnkr = ''; # "linker" is normally GCC
262 # 'nm' is used for consistency checking (ToDo: mk-world-ify)
263 # ToDo: check the OS or something ("alpha" is surely not the crucial question)
264 $Nm = ($TargetPlatform =~ /^alpha-/) ? 'nm -B' : 'nm';
267 Warning packages that are controlled by -W and -Wall. The 'standard'
268 warnings that you get all the time are
270 -fwarn-overlapping-patterns
271 -fwarn-missing-methods
272 -fwarn-duplicate-exports
274 these are turned off by -Wnot.
277 @StandardWarnings = ('-fwarn-overlapping-patterns',
278 '-fwarn-missing-methods',
279 '-fwarn-duplicate-exports');
280 @MinusWOpts = (@StandardWarnings,
281 '-fwarn-incomplete-patterns',
282 '-fwarn-unused-binds',
283 '-fwarn-unused-imports');
284 @MinusWallOpts = (@MinusWOpts,
285 '-fwarn-unused-matches',
286 '-fwarn-name-shadowing');
289 What options \tr{-user-setup-a} turn into (user-defined ``packages''
291 of options). Note that a particular user-setup implies a particular
292 Prelude ({\em including} its interface file(s)).
294 $BuildTag = ''; # default is sequential build w/ Appel-style GC
296 %BuildDescr = (# system ways begin
297 '', 'normal sequential',
301 '_mc', "$WAY_mc_NAME",
302 '_mr', "$WAY_mr_NAME",
303 '_mt', "$WAY_mt_NAME",
304 '_mp', "$WAY_mp_NAME",
305 '_mg', "$WAY_mg_NAME",
306 '_2s', "$WAY_2s_NAME",
307 '_1s', "$WAY_1s_NAME",
308 '_du', "$WAY_du_NAME",
326 '_B', "$WAY_B_NAME" );
328 # these are options that are "fed back" through the option processing loop
332 '_a', "$WAY_a_HC_OPTS",
333 '_b', "$WAY_b_HC_OPTS",
334 '_c', "$WAY_c_HC_OPTS",
335 '_d', "$WAY_d_HC_OPTS",
336 '_e', "$WAY_e_HC_OPTS",
337 '_f', "$WAY_f_HC_OPTS",
338 '_g', "$WAY_g_HC_OPTS",
339 '_h', "$WAY_h_HC_OPTS",
340 '_i', "$WAY_i_HC_OPTS",
341 '_j', "$WAY_j_HC_OPTS",
342 '_k', "$WAY_k_HC_OPTS",
343 '_l', "$WAY_l_HC_OPTS",
344 '_m', "$WAY_m_HC_OPTS",
345 '_n', "$WAY_n_HC_OPTS",
346 '_o', "$WAY_o_HC_OPTS",
347 '_A', "$WAY_A_HC_OPTS",
348 '_B', "$WAY_B_HC_OPTS",
351 '_p', "$WAY_p_HC_OPTS",
352 '_t', "$WAY_t_HC_OPTS",
353 '_u', "$WAY_u_HC_OPTS",
354 '_mc', "$WAY_mc_HC_OPTS",
355 '_mr', "$WAY_mr_HC_OPTS",
356 '_mt', "$WAY_mt_HC_OPTS",
357 '_mp', "$WAY_mp_HC_OPTS",
358 '_mg', "$WAY_mg_HC_OPTS",
359 '_2s', "$WAY_2s_HC_OPTS",
360 '_1s', "$WAY_1s_HC_OPTS",
361 '_du', "$WAY_B_HC_OPTS" );
365 Import/include directories (\tr{-I} options) are sufficiently weird to
366 require special handling.
369 @Import_dir = ('.'); #-i things
370 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
372 # where to look for interface files (system hi's, i.e., prelude and syslibs)
373 @SysImport_dir = ( $INSTALLING )
374 ? ( "$InstLibDirGhc/imports/std" )
375 : ( "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std" );
377 # We need to look in ghc/ and glaExts/ when searching for implicitly needed .hi files, but
378 # we should really *not* look there for explicitly imported modules.
380 $GhcVersionInfo = $ProjectVersionInt;
381 $Haskell1Version = 4; # i.e., Haskell 1.4
384 @UserLibrary_dir= (); #-L things;...
385 @UserLibrary = (); #-l things asked for by the user
387 @SysLibrary_dir = ( ( $INSTALLING ) #-syslib things supplied by the system
389 : ( "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR"
390 , "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/gmp"
391 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std"
392 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std/cbits"
395 @SysLibrary = (); # will be built up as we go along
397 $TopClosureFile # defaults to 1.2 one; will be mangled later
398 = ( $INSTALLING) ? "$InstLibDirGhc/TopClosureXXXX.o"
399 : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/main/TopClosureXXXX.o";
401 # make depend for Haskell
403 = ( $INSTALLING ) ? "$InstBinDirGhc/mkdependHS"
404 : "$TopPwd/$CURRENT_DIR/$GHC_UTILS_DIR/mkdependHS/mkdependHS";
406 @MkDependHS_flags = ();
408 # do_link flag should not be reset while rescanning the cmd-line.
410 $Specific_output_dir = ''; # set by -odir <dir>
411 $Specific_output_file = ''; # set by -o <file>; "-" for stdout
414 Function to initialise the per-compilation-unit globals that
415 are used to guide and control the invocation of the different phases.
418 sub initDriverGlobals {
420 # reset the following options:
421 # RTS flags to use while compiling
423 @HsP_flags = (); # these are the flags destined solely for
424 # the flex/yacc parser
429 The optimisations/etc to be done by the compiler are {\em normally}
430 expressed with a \tr{-O} (or \tr{-O2}) flag, or by its absence.
433 $OptLevel = 0; # no -O == 0; -O == 1; -O2 == 2; -Ofile == 3
434 $MinusO2ForC = 0; # set to 1 if -O2 should be given to C compiler
435 $StolenX86Regs = 4; # **HACK*** of the very worst sort
439 @CcBoth_flags = ('-S'); # flags for *any* C compilation
442 # GCC flags: those for all files, those only for .c files; those only for .hc files
443 @CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__');
444 @CcRegd_flags_c = ();
445 @CcRegd_flags_hc = ();
447 @Import_dir = ('.'); #-i things
448 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
453 We are given a list of files with various presumably-known suffixes
454 (unknown-suffix files go straight to the linker). For each file, we
455 begin by assuming that we'll run every phase over it. However: (1)
456 global flags (\tr{-c}, \tr{-S}, etc.) tell us not to run any phase
457 past a certain point; and (2) the file's suffix tells us what phase to
458 start with. Linking is weird and kept track of separately.
460 Here are the initial defaults applied to all files:
462 $Cpp_flag_set = 0; # (hack)
463 $Only_preprocess_C = 0; # pretty hackish
464 $Only_preprocess_hc = 0; # ditto
465 $Only_generate_deps = 0; # "
466 $PostprocessCcOutput = 0;
468 # native code-gen or via C?
469 $HaveNativeCodeGen = $GhcWithNativeCodeGen;
470 $HscOut = '-C='; # '-C=' ==> .hc output; '-S=' ==> .s output; '-N=' ==> neither
472 if $HaveNativeCodeGen && $TargetPlatform =~ /^(alpha|sparc)-/;
473 # TEMP: disable x86 if $HaveNativeCodeGen && $TargetPlatform =~ /^(i386|alpha|sparc)-/;
474 $ProduceHi = '-hifile=';
480 $CollectingGCstats = 0;
481 $CollectGhcTimings = 0;
482 $DEBUGging = ''; # -DDEBUG and all that it entails (um... not really)
483 $PROFing = ''; # set to p or e if profiling
484 $PROFgroup = ''; # set to group if an explicit -Ggroup specified
485 $PROFauto = ''; # set to relevant hsc flag if -auto or -auto-all
486 $PROFcaf = ''; # set to relevant hsc flag if -caf-all
487 $PROFignore_scc = ''; # set to relevant parser flag if explicit sccs ignored
488 $UNPROFscc_auto = ''; # set to relevant hsc flag if forcing auto sccs without profiling
489 $TICKYing = ''; # set to t if compiling for ticky-ticky profiling
490 $PARing = ''; # set to p if compiling for PAR
491 $CONCURing = ''; # set to c if compiling for CONCURRENT
492 $GRANing = ''; # set to g if compiling for GRAN
493 $StkChkByPageFaultOK = 1; # may be set to 0 (false) for some builds
494 $Specific_hi_file = ''; # set by -ohi <file>; "-" for stdout
495 $Specific_dump_file = ''; # set by -odump <file>; "-" for stdout
496 $Using_dump_file = 0;
498 $Osuffix = ''; # default: use the normal suffix for that kind of output
500 $HiSuffix_prelude = '';
501 $Do_recomp_chkr = 0; # don't use the recompilatio checker unless asked
502 $Do_cc = -1; # a MAGIC indeterminate value; will be set to 1 or 0.
505 $Keep_hc_file_too = 0;
506 $Keep_s_file_too = 0;
507 $UseGhcInternals = 0; # if 1, may use GHC* modules
510 $Dump_parser_output = 0;
512 $Dump_asm_splitting_info = 0;
513 $NoImplicitPrelude = 0;
516 } # end of initDriverGlobals (Sigh)
518 # we split the argv passed to the driver into three:
523 # and files to be linked...
529 # cmd line options prefixing the unit we're compiling
534 We inject consistency-checking information into \tr{.hc} files (both
535 when created by the Haskell compiler and when compiled by the C
536 compiler), so that we can check that an executable is made from
537 consistently-built pieces. (The check is normally done just after
538 linking.) The checking is done by introducing/munging
539 \tr{what(1)}-style strings. Anyway, here are the relevant global
540 variables and their defaults:
542 $LinkChk = 1; # set to 0 if the link check should *not* be done
544 # major & minor version numbers; major numbers must always agree;
545 # minor disagreements yield a warning.
546 $HsC_major_version = 33;
547 $HsC_minor_version = 0;
548 $Cc_major_version = 36;
549 $Cc_minor_version = 1;
551 # options: these must always agree
552 $HsC_consist_options = ''; # we record, in this order:
553 # Build tag; debugging?
554 $Cc_consist_options = ''; # we record, in this order:
555 # Build tag; debugging?
558 %************************************************************************
560 \section[Driver-parse-argv]{Munge the command-line options}
562 %************************************************************************
564 Now slurp through the arguments.
567 &initDriverGlobals();
568 &splitCmdLine(@ARGV);
569 # Run through the cmd-line first time.
570 &processArgs(@Cmd_opts);
572 # Check to see if driver is only in the business
573 # to generate dependencies
574 if ( $Status == 0 && $Only_generate_deps ) {
576 push (@MkDependHS_flags, "-o$Osuffix") if $Osuffix;
577 push (@MkDependHS_flags, "-s$BuildTag") if $BuildTag;
578 push (@MkDependHS_flags, "-D__HASKELL1__=$Haskell1Version");
579 # They're not (currently) needed, but we need to quote any -#include options
580 foreach (@Cmd_opts) {
581 s/-#include.*$/'$&'/g;
583 local($to_do) = "$MkDependHS @MkDependHS_flags -- @Cmd_opts -- @Input_file" ;
584 &run_something($to_do, 'Haskell dependencies');
588 # if there are several input files,
589 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
590 # (except if linking, of course)
592 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
593 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
594 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
595 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
596 print STDERR "\tPerhaps the -odir option will do what you want.\n";
601 # check for various pathological -o and -odir combinations...
602 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
603 if ($Specific_output_file eq '-') {
604 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
606 } else { # amalgamate...
607 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
608 # ToDo: check we haven't got a junk name now...
609 $Specific_output_dir = ''; # reset
613 # crash and burn if there were errors
615 print STDERR $ShortUsage;
620 %************************************************************************
622 \section[Driver-post-argv-mangling]{Setup after reading options}
624 %************************************************************************
626 %************************************************************************
628 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
630 %************************************************************************
632 We come now to the default ``wads of options'' that are turned on by
633 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
634 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
637 The user can also specify his/her own list of options in a file; in
638 that case, the work is already done (see stuff about @minusO3@,
641 GHC allows very precise control of what happens during a compilation.
642 Core-to-Core and STG-to-STG passes can be run in any order, as many
643 times as you like. Individual transformations can be turned on or
646 Sadly, however, there are some interdependencies \& Things You Must
647 Not Do. Here is the list.
651 \item[\tr{-fspecialise}:]
652 The specialiser must have dependency-analysed input; but if you run
653 the simplifier to do this, you must not let it toss away unused
654 bindings! (The typechecker conveys some specialisation info via
655 ``unused'' bindings...)
657 \item[\tr{-ffloat-inwards}:]
658 Floating inwards should be done before strictness analysis, because
659 the latter will give better results.
661 \item[\tr{-fstatic-args}:]
662 The static-arguments-transformation pass {\em must} have the
663 simplifier run right after it.
665 \item[\tr{-fcalc-inlinings[12]}:]
666 Not required, but there may be slight gains by re-simplifying after
667 this is done. (You could then \tr{-fcalc-inlinings} again, just for
670 \item[\tr{-ffull-laziness}:]
671 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
672 that's run. (Um, well, howzabout the simplifier just once more...)
677 \item[\tr{-fupdate-analysis}:]
678 It really really wants to be the last STG-to-STG pass that is run.
683 sub setupOptimiseFlags {
689 '-ffloat-lets-exposing-whnf',
690 '-ffloat-primops-ok',
693 # '-fdo-lambda-eta-expansion', # too complicated
695 # '-flet-to-case', # no strictness analysis, so...
696 $Oopt_PedanticBottoms,
697 # $Oopt_MonadEtaExpansion, # no thanks
699 # These two work fine, if you really want no simplification at all,
700 # for bizarre test reasons. But you get really terrible code if you use them,
701 # for example: let x = e in x
702 # with dozens of redundant thunks etc. So I'm leaving them out.
704 # '-fsimpl-uf-use-threshold0',
705 # '-fessential-unfoldings-only',
708 # The presence of -fclone-binds is *temporary* to work around
709 # the fact that the desugarer in 3.0{2.3} does generate
710 # bindings with identical ids, and the type checker doesn't perform
711 # properly cloned type substitutions. Instead, we make sure that all
712 # binders are cloned first time through the simplifier.
714 # Will be properly fixed in the `new compiler` I hear, at which point
715 # the cloning can be turned off here.
718 $Oopt_MaxSimplifierIterations,
719 $Oopt_ShowSimplifierProgress,
722 # '-ffull-laziness', # removed 95/04 WDP following Andr\'e's lead
724 $Oopt_FinalStgProfilingMassage
727 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
729 '-fdo-eta-reduction',
731 # initial simplify: mk specialiser happy: minimum effort please
735 '-fkeep-spec-pragma-ids', # required before specialisation
737 # I don't understand why we want -fessential-unfoldings-only here
738 # If we have it, the following nasty thing happens:
742 # where "*" means exported.
743 # In the essential-unfoldings pass we still substitute f for g
744 # but we don't substitute E for f first. So we get
748 # The g=f will get reverse-substituted later, but it's untidy.
750 # '-fessential-unfoldings-only',
751 # '-fsimpl-uf-use-threshold0',
753 # See remark re: cloning in defn of minusnotO
756 '-fmax-simplifier-iterations1',
757 $Oopt_PedanticBottoms,
760 ($Oopt_DoSpecialise) ? (
761 '-fspecialise-overloaded',
762 $Oopt_SpecialiseUnboxed,
766 '-fsimplify', # need dependency anal after specialiser ...
767 '[', # need tossing before calc-inlinings ...
769 '-ffloat-lets-exposing-whnf',
770 '-ffloat-primops-ok',
774 # '-fdo-eta-reduction',
775 '-fdo-lambda-eta-expansion',
777 $Oopt_PedanticBottoms,
778 $Oopt_MonadEtaExpansion,
779 $Oopt_MaxSimplifierIterations,
780 $Oopt_ShowSimplifierProgress,
782 # The presence of -fclone-binds is *crucial* here as
783 # -ffull-laziness (which we're about to do next) floats
784 # bindings outwards, so we better make sure that this
785 # doesn't result in the floating out of bindings
786 # with identical uniques, i.e., -ffull-laziness needs
787 # to be preceeded by a simplifier pass with -fclone-binds
792 #LATER: '-fcalc-inlinings1', -- pointless for 2.01
794 # ($Oopt_FoldrBuildWW) ? (
795 # '-ffoldr-build-ww-anal',
796 # '-ffoldr-build-worker-wrapper',
800 # '-ffloat-lets-exposing-whnf',
801 # '-ffloat-primops-ok',
805 # '-fdo-eta-reduction',
806 # '-fdo-lambda-eta-expansion',
808 # $Oopt_PedanticBottoms,
809 # $Oopt_MonadEtaExpansion,
810 # $Oopt_MaxSimplifierIterations,
811 # $Oopt_ShowSimplifierProgress,
815 # this pass-ordering sequence was agreed by Simon and Andr\'e
816 # (WDP 94/07, 94/11).
819 ($Oopt_FoldrBuild) ? (
820 '-ffoldr-build-on', # desugar list comprehensions for foldr/build
824 '-fignore-inline-pragma', # **** NB!
825 '-fdo-foldr-build', # NB
827 '-ffloat-lets-exposing-whnf',
828 '-ffloat-primops-ok',
832 # '-fdo-eta-reduction',
833 '-fdo-lambda-eta-expansion', # After full laziness
835 $Oopt_PedanticBottoms,
836 $Oopt_MonadEtaExpansion,
837 $Oopt_MaxSimplifierIterations,
838 $Oopt_ShowSimplifierProgress,
847 '-ffloat-lets-exposing-whnf',
848 '-ffloat-primops-ok',
852 '-fdo-eta-reduction',
853 '-fdo-lambda-eta-expansion',
855 ($Oopt_FoldrBuildInline),
856 # you need to inline foldr and build
857 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
858 # but do reductions if you see them!
859 $Oopt_PedanticBottoms,
860 $Oopt_MonadEtaExpansion,
861 $Oopt_MaxSimplifierIterations,
862 $Oopt_ShowSimplifierProgress,
870 '-ffloat-lets-exposing-whnf',
871 '-ffloat-primops-ok',
875 # '-fdo-eta-reduction',
876 '-fdo-lambda-eta-expansion',
878 '-flet-to-case', # Aha! Only done after strictness analysis
879 $Oopt_PedanticBottoms,
880 $Oopt_MonadEtaExpansion,
881 $Oopt_MaxSimplifierIterations,
882 $Oopt_ShowSimplifierProgress,
887 # Case-liberation for -O2. This should be after
888 # strictness analysis and the simplification which follows it.
892 # : "-fliberate-case -fsimplify [ $Oopt_FB_Support -ffloat-lets-exposing-whnf -ffloat-primops-ok -fcase-of-case -fdo-case-elim -fcase-merge -fdo-eta-reduction -fdo-lambda-eta-expansion -freuse-con -flet-to-case $Oopt_PedanticBottoms $Oopt_MonadEtaExpansion $Oopt_MaxSimplifierIterations $Oopt_ShowSimplifierProgress ]" ),
894 # Final clean-up simplification:
899 '-ffloat-lets-exposing-whnf',
900 '-ffloat-primops-ok',
904 # '-fdo-eta-reduction',
905 '-fdo-lambda-eta-expansion',
908 '-fignore-inline-pragma', # **** NB!
909 $Oopt_FoldrBuildInline,
910 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
911 # but still do reductions if you see them!
912 $Oopt_PedanticBottoms,
913 $Oopt_MonadEtaExpansion,
914 $Oopt_MaxSimplifierIterations,
915 $Oopt_ShowSimplifierProgress,
920 #LATER: '-fcalc-inlinings2', -- pointless for 2.01
924 $Oopt_FinalStgProfilingMassage,
930 # SPECIAL FLAGS for -O2
932 '-fupdate-analysis', # virtually useless; relegated to -O2
939 Sort out what we're going to do about optimising. First, the @hsc@
940 flags and regular @cc@ flags to worry about:
942 if ( $OptLevel <= 0 ) {
944 # for this level, we tell the parser -fignore-interface-pragmas
945 push(@HsC_flags, '-fignore-interface-pragmas');
946 # and tell the compiler not to produce them
947 push(@HsC_flags, '-fomit-interface-pragmas');
949 &add_Hsc_flags( @HsC_minusNoO_flags );
950 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
952 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
954 &add_Hsc_flags( @HsC_minusO_flags );
955 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
956 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
957 # but it *is* useful in compiling the garbage collectors (so said
958 # Patrick many moons ago...).
960 } else { # -Ofile, then...
962 &add_Hsc_flags( @HsC_minusO3_flags );
963 push(@HsC_flags, $Oopt_FinalStgProfilingMassage) if $Oopt_FinalStgProfilingMassage;
965 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
968 } # setupOptimiseFlags
972 %************************************************************************
974 \subsection{Check for consistency, etc.}
976 %************************************************************************
978 Sort out @$BuildTag@, @$PROFing@, @$CONCURing@, @$PARing@,
979 @$GRANing@, @$TICKYing@:
981 sub setupBuildFlags {
984 # PROFILING stuff after argv mangling:
986 # warn about any scc exprs found (in case scc used as identifier)
987 push(@HsP_flags, '-W');
989 # add -auto sccs even if not profiling !
990 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
993 push(@HsC_flags, $PROFauto) if $PROFauto;
994 push(@HsC_flags, $PROFcaf) if $PROFcaf;
995 #push(@HsC_flags, $PROFdict) if $PROFdict;
997 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
999 # Ignore user sccs when auto annotating, but warn when doing so.
1000 $PROFignore_scc = '-W' if $PROFauto;
1002 push(@HsP_flags, (($PROFignore_scc) ? $PROFignore_scc : '-S'));
1004 if ( $SplitObjFiles ) {
1005 # can't split with cost centres -- would need global and externs
1006 print STDERR "$Pgm: WARNING: splitting objects when profiling will *BREAK* if any _scc_s are present!\n";
1007 # (but it's fine if there aren't any _scc_s around...)
1008 # $SplitObjFiles = 0; # unset
1009 #not an error: for now: $Status++;
1012 #if ( $BuildTag ne '' ) {
1013 # local($b) = $BuildDescr{$BuildTag};
1014 # if ($CONCURing eq 'c') { print STDERR "$Pgm: Can't mix $b with -concurrent.\n"; exit 1; }
1015 # if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
1016 # if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
1017 # if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
1019 # # ok to have a user-way profiling build
1020 # # eval the profiling opts ... but leave user-way BuildTag
1021 # if ($PROFing eq 'p') { &processArgs(split(' ', $SetupOpts{'_p'})); } # eval($EvaldSetupOpts{'_p'}); }
1023 if ( $PROFing eq 'p' ) {
1024 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
1025 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
1026 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
1027 $BuildTag = ($CONCURing eq 'c') ? '_mr' : '_p' ; # possibly "profiled concurrent"...
1029 } elsif ( $CONCURing eq 'c' ) {
1030 if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix -concurrent with -parallel.\n"; exit 1; }
1031 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -concurrent with -gransim.\n"; exit 1; }
1032 $BuildTag = ($TICKYing eq 't') ? '_mt' : '_mc' ; # possibly "ticky concurrent"...
1033 # "profiled concurrent" already acct'd for...
1035 } elsif ( $PARing eq 'p' ) {
1036 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
1037 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
1040 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
1041 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
1045 } elsif ( $GRANing eq 'g' ) {
1046 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
1049 } elsif ( $TICKYing eq 't' ) {
1055 After the sanity checks, add flags to the necessary parts of the driver pipeline:
1058 if ( $BuildTag ne '' ) { # something other than normal sequential...
1060 local($Tag) = "${BuildTag}";
1061 $Tag =~ s/_//; # move the underscore to the back
1063 $HscOut = '-C='; # must go via C
1064 &processArgs(split(' ', $SetupOpts{$BuildTag}));
1065 # eval($EvaldSetupOpts{$BuildTag});
1069 Decide what the consistency-checking options are in force for this run:
1072 $HsC_consist_options = "${BuildTag},${DEBUGging}";
1073 $Cc_consist_options = "${BuildTag},${DEBUGging}";
1076 # Funny place to put it, but why not.
1078 if ( $HiSuffix_prelude eq '' ) {
1079 local($Tag) = "${BuildTag}";
1081 $Tag = "${Tag}_" if $Tag ne '';
1082 $HiSuffix_prelude="${Tag}hi";
1084 #push(@HsC_flags, "-hisuf-prelude=.${HiSuffix_prelude}"); # use appropriate Prelude .hi files
1085 #push(@HsC_flags, "-hisuf=.${HiSuffix}");
1090 %************************************************************************
1092 \subsection{Add on machine-specific C-compiler flags}
1094 %************************************************************************
1096 Shove on magical machine-specific options. We use \tr{unshift} to
1097 stick them on the {\em front} of the arrays, so that ``later''
1098 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
1100 Note: a few ``always apply'' flags were set at the very beginning.
1105 if ($TargetPlatform =~ /^alpha-/) {
1106 # we know how to *mangle* asm for alpha
1107 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1108 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1109 unshift(@CcBoth_flags, ('-static'));
1111 } elsif ($TargetPlatform =~ /^hppa/) {
1112 # we know how to *mangle* asm for hppa
1113 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1114 unshift(@CcBoth_flags, ('-static'));
1116 # We don't put in '-mlong-calls', because it's only
1117 # needed for very big modules (sigh), and we don't want
1118 # to hobble ourselves further on all the other modules
1121 # [Dated comment (gcc-2.6.x?), -mlong-calls is no longer
1122 # a supported gcc HPPA flag]
1123 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
1124 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
1125 # (very nice, but too bad the HP /usr/include files don't agree.)
1127 } elsif ($TargetPlatform =~ /^i386-/) {
1128 # we know how to *mangle* asm for X86
1129 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1130 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK && $TargetPlatform !~ /nextstep/;
1131 # I do not know how to do STACK_CHECK_BY_PAGE_FAULT
1132 # on NeXTs (my fault, not theirs), so I don't.
1135 # -fno-defer-pop : basically the same game as for m68k
1137 # -fomit-frame-pointer : *must* ; because we're stealing
1138 # the fp (%ebp) for our register maps. *All* register
1139 # maps (in MachRegs.lh) must steal it.
1141 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1142 unshift(@CcRegd_flags, '-fomit-frame-pointer');
1143 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1145 } elsif ($TargetPlatform =~ /^m68k-/) {
1146 # we know how to *mangle* asm for m68k
1147 unshift (@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1148 unshift (@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK && $TargetPlatform !~ /nextstep/;
1149 # I do not know how to do STACK_CHECK_BY_PAGE_FAULT
1150 # on NeXTs (my fault, not theirs), so I don't.
1153 # -fno-defer-pop : for the .hc files, we want all the pushing/
1154 # popping of args to routines to be explicit; if we let things
1155 # be deferred 'til after an STGJUMP, imminent death is certain!
1157 # -fomit-frame-pointer : *don't*
1158 # It's better to have a6 completely tied up being a frame pointer
1159 # rather than let GCC pick random things to do with it.
1160 # (If we want to steal a6, then we would try to do things
1161 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1163 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1164 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1165 # maybe gives reg alloc a better time
1166 # also: -fno-defer-pop is not sufficiently well-behaved without it
1168 } elsif ($TargetPlatform =~ /^mips-/) {
1169 # we (hope to) know how to *mangle* asm for MIPSen
1170 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1171 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1172 unshift(@CcBoth_flags, ('-static'));
1174 } elsif ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1175 # we know how to *mangle* asm for PowerPC
1176 # :-( unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1177 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1178 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1179 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1180 } elsif ($TargetPlatform =~ /^sparc-/) {
1181 # we know how to *mangle* asm for SPARC
1182 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1183 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1186 } # end of setupMachOpts
1189 %************************************************************************
1191 \subsection{Set up for warnings}
1193 %************************************************************************
1195 Several warnings are turned on by default. These are supposed to be
1196 the 'I'm pretty sure you've made a mistake here' kind of warnings.
1197 The rest are turned on by the -W and -Wall options, or individually
1198 via their -fwarn and -fno-warn flags.
1201 sub setupWarningFlags {
1202 &add_Hsc_flags( @StandardWarnings );
1206 Same unshifting magic, but for special linker flags.
1208 The configure script determines whether the object file symbol tables
1209 have a leading underscore, and sets @LeadingUnderscore@ accordingly.
1210 (The driver script `sees' the setting of the @LeadingUnderscore@
1211 by having the Makefile prepend it).
1215 local($uscore) = ( ${LeadingUnderscore} eq 'YES' ) ? '_' : '';
1218 (($Ld_main) ? ( '-u', "${uscore}Main_" . $Ld_main . '_closure' ) : ()));
1220 ( '-u', "${uscore}PrelBase_Z91Z93_closure" # i.e., []
1221 ,'-u', "${uscore}PrelBase_IZh_static_info"
1222 ,'-u', "${uscore}PrelBase_CZh_static_info"
1223 ,'-u', "${uscore}PrelBase_False_inregs_info"
1224 ,'-u', "${uscore}PrelBase_True_inregs_info"
1225 ,'-u', "${uscore}DEBUG_REGS"
1227 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1228 # sometimes we have lots of toc entries...
1229 # unshift(@Ld_flags, ('-Xlinker -bbigtoc -Xlinker -bnoquiet'));
1230 unshift(@Ld_flags, ('-Xlinker -bbigtoc'));
1233 } # end of setupLinkOpts
1237 %************************************************************************
1239 \subsection{Set up include paths and system-library enslurpment}
1241 %************************************************************************
1243 Now that we know what garbage-collector, etc., are required, we can
1244 finalise our list of libraries to slurp through, and generally Get
1249 # default includes must be added AFTER option processing
1250 if ( ! $INSTALLING ) {
1251 push (@Include_dir, "$TopPwd/${CURRENT_DIR}/${GHC_INCLUDE_DIR}");
1253 push (@Include_dir, "$InstLibDirGhc/includes");
1254 push (@Include_dir, "$InstLibDirGhc/includes");
1256 } # end of setupIncPaths
1261 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1264 foreach $f (@SysLibrary) {
1265 next if $f =~ /_cbits/;
1266 $f .= $BuildTag if $f =~ /^-lHS/;
1269 # fiddle the TopClosure file name...
1270 $TopClosureFile =~ s/XXXX//;
1272 # Push library HSrts, plus boring clib bit
1273 push(@SysLibrary, "-lHSrts${BuildTag}");
1274 push(@SysLibrary, '-lHSclib');
1276 # RTS compiled with cygwin32, uses the WinMM API
1277 # to implement the itimers, since cygwin.dll does not
1278 # support it. Only reqd. for `ways' that use itimers.
1280 push(@SysLibrary, '-lwinmm') if $BuildTag ne '' && $TargetPlatform eq 'i386-unknown-cygwin32';
1282 # Push the pvm libraries
1283 if ($BuildTag eq '_mp') {
1284 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1285 push(@SysLibrary, "-L$pvmlib", '-lpvm3', '-lgpvm3');
1286 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1287 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1288 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1289 push(@SysLibrary, '-lsocket', '-lnsl');
1293 # Push the GNU multi-precision arith lib; and the math library
1294 push(@SysLibrary, '-lgmp');
1295 push(@SysLibrary, '-lm');
1298 %************************************************************************
1300 \subsection{Check that this system was built to do what we are asking}
1302 %************************************************************************
1304 Before continuing we check that the appropriate build is available.
1307 #die "$Pgm: no BuildAvail?? $BuildTag\n" if $BuildDescr{$BuildTag} eq '' ; # sanity
1309 if ( $BuildDescr{$BuildTag} eq '' ) {
1310 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1311 "' \"build\" is not available with your GHC setup.\n";
1312 print STDERR "(It was not configured for it at your site.)\n";
1313 print STDERR $ShortUsage;
1317 } # end of setupSyslibs
1321 %************************************************************************
1323 \subsection{Final miscellaneous setup bits before we start going}
1325 %************************************************************************
1327 Record largest specific heapsize, if any.
1329 sub setupHeapStackSize {
1330 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1331 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1332 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1333 push(@HsC_rts_flags, "-K$Specific_stk_size");
1337 If no input or link files seen, then we let 'em feed in stdin; this is
1338 mainly for debugging.
1342 if ($#Input_file < 0 && $#Link_file < 0) {
1343 @Input_file = ( '-' );
1345 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1346 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n" if -t;
1347 while (<STDIN>) { print INF $_; }
1348 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1353 Tell the world who we are, if they asked.
1355 print STDERR "${ProjectName}, version ${ProjectVersion}, patchlevel ${ProjectPatchLevel}\n"
1359 %************************************************************************
1361 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1363 %************************************************************************
1365 Process the input files; don't continue with linking if there are
1366 problems (global variable @$Status@ non-zero).
1368 foreach $ifile (@Input_file) {
1369 &ProcessInputFile($ifile);
1372 if ( $Status > 0 ) { # don't link if there were errors...
1373 print STDERR $ShortUsage;
1378 # append last minute flags linker and consistency flags
1385 Link if appropriate.
1388 local($libdirs) = '';
1390 # glue them together:
1391 push(@UserLibrary_dir, @SysLibrary_dir);
1393 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1395 # for a linker, use an explicitly given one, or the going C compiler ...
1396 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1398 if ( ($Specific_output_file eq '') &&
1399 ($TargetPlatform eq 'i386-unknown-cygwin32') ) {
1400 $Specific_output_file = 'main.exe';
1401 print STDERR "Output file not specified, defaulting to \"main.exe\"\n";
1404 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1405 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1407 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $TopClosureFile $libdirs @UserLibrary @SysLibrary";
1408 &run_something($to_do, 'Linker');
1410 # finally, check the consistency info in the binary
1411 local($executable) = $Files_to_tidy[0];
1412 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1415 # dynamically load consistency-chking code; then do it.
1416 require('ghc-consist.prl')
1417 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1419 &chk_consistency_info ( $executable );
1422 # if PVM parallel stuff, we do truly weird things.
1423 # Essentially: (1) move the executable over to where PVM expects
1424 # to find it. (2) create a script in place of the executable
1425 # which will cause the program to be run, via SysMan.
1426 if ( $PARing eq 'p' ) {
1427 local($pvm_executable) = $executable;
1428 local($pvm_executable_base);
1430 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1431 local($pwd) = `pwd`;
1433 $pwd =~ s/^\/tmp_mnt//;
1434 $pvm_executable = "$pwd/$pvm_executable";
1437 $pvm_executable =~ s|/|=|g; # make /s into =s
1438 $pvm_executable_base = $pvm_executable;
1440 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1441 . "/$pvm_executable";
1443 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1445 # OK, now create the magic script for "$executable"
1446 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1447 print EXEC <<EOSCRIPT1;
1448 eval 'exec perl -S \$0 \${1+"\$@"}'
1449 if \$running_under_some_shell;
1450 # =!=!=!=!=!=!=!=!=!=!=!
1451 # This script is automatically generated: DO NOT EDIT!!!
1452 # Generated by Glasgow Haskell, version ${ProjectVersion} ${ProjectPatchLevel}
1454 \$pvm_executable = '$pvm_executable';
1455 \$pvm_executable_base = '$pvm_executable_base';
1456 \$SysMan = '$SysMan';
1459 print EXEC <<\EOSCRIPT2;
1460 # first, some magical shortcuts to run "commands" on the binary
1462 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1464 system("$cmd $pvm_executable");
1468 # OK, really run it; process the args first
1469 $ENV{'PE'} = $pvm_executable_base;
1471 $nprocessors = 2; # the default
1475 # ToDo: handle --RTS
1476 args: while ($a = shift(@ARGV)) {
1477 if ( $a eq '+RTS' ) {
1479 } elsif ( $a eq '-RTS' ) {
1482 if ( $a eq '-d' && $in_RTS_args ) {
1484 } elsif ( $a =~ /^-N(\d+)/ && $in_RTS_args ) {
1487 push(@nonPVM_args, $a);
1491 local($return_val) = 0;
1492 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
1494 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
1497 close(EXEC) || die "Failed closing $executable\n";
1498 chmod 0755, $executable;
1502 # that... that's all, folks!
1504 exit $Status; # will still be 0 if all went well
1507 %************************************************************************
1509 \section[Driver-do-one-file]{How to process a single input file}
1511 %************************************************************************
1514 sub ProcessInputFile {
1515 local($ifile) = @_; # input file name
1516 local($ifile_root); # root of or basename of input file
1517 local($ofile_target); # ultimate output file we hope to produce
1518 # from input file (need to know for recomp
1519 # checking purposes)
1520 local($hifile_target);# ditto (but .hi file)
1523 Handle the weirdity of input from stdin.
1525 if ($ifile ne '-') {
1526 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1527 $ofile_target = # may be reset later...
1528 ($Specific_output_file ne '' && ! $Do_lnkr)
1529 ? $Specific_output_file
1530 : &odir_ify($ifile_root, 'o');
1531 $hifile_target= ($Specific_hi_file ne '')
1533 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1534 # NB: may change if $ifile_root isn't module name (??)
1536 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1537 $ifile_root = '_stdin';
1538 $ofile_target = '_stdout'; # gratuitous?
1539 $hifile_target= '_stdout'; # ditto?
1543 We need to decide what phases of the compilation system we will run
1544 over this file. The defaults are the ones established when processing
1545 flags. (That established what the last phase run for all files is.)
1547 We do the pre-recompilation-checker phases here; the rest later.
1551 Look at the suffix and decide what initial phases of compilation may
1552 be dropped off for this file. Also the rather boring business of
1553 which files are coming-in/going-out.
1555 Again, we'll do the post-recompilation-checker parts of this later.
1557 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1558 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1561 # names of the files to stuff between phases
1562 # defaults are temporaries
1563 local($in_lit2pgm) = $ifile;
1564 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1565 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1566 local($hsc_hi) = "$Tmp_prefix.hi";
1567 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1568 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1569 local($as_out) = $ofile_target;
1571 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
1573 # OK, let's strip off some literate junk..
1575 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
1577 $lit2pgm_hscpp = $ifile;
1583 # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas
1584 &check_for_source_options($lit2pgm_hscpp,$ifile);
1586 # Options found in the source file take a back seat, i.e., we scan
1587 # them first. Only process the command line again if source file
1588 # contained anything of interest *or* there's more than one
1589 # input file (we have to reset the options).
1591 if ( $#Input_file >= 0 || $#File_options >= 0) {
1592 #@File_options = (@File_options, @Cmd_opts);
1594 # Now process the command line
1595 &initDriverGlobals();
1596 &processArgs((@File_options,@Cmd_opts));
1597 print STDERR "\nEffective command line: " .
1598 join(' ',(@File_options,@Cmd_opts)) . "\n" if $Verbose;
1601 # Having got the effective command line scanned, set up
1602 # the various options in prep for some real work.
1604 # check the sanity of the BuildTag we're about to use,
1605 # and if needs be, add some more flags and setup to
1606 # the different phases.
1609 &setupOptimiseFlags();
1612 &setupWarningFlags();
1613 &setupHeapStackSize();
1616 # These two variables need to be set after the
1617 # command-line has been processed and the build options
1618 # have be seen set up. This is because command-line options
1619 # can control whether to compile vias C or not.
1621 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1623 : ( ($HscOut eq '-C=') ? 1 : 0 );
1624 local($do_as) = $Do_as;
1625 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1627 if ($Only_preprocess_hc) { # stop after having run $Cc -E
1630 if ($Only_preprocess_C) { # stop after having run $hscpp
1631 $do_hsc=0; $do_cc = 0; $do_as=0;
1632 } elsif ($ifile =~ /.lhs$/ || $ifile =~ /.hs$/ ) {
1634 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
1635 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1637 } elsif ($ifile =~ /\.c$/) {
1638 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1639 $hsc_out = $ifile; $is_hc_file = 0;
1640 } elsif ($ifile =~ /\.s$/) {
1641 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
1643 } else { # don't know what it is, but nothing to do herein...
1644 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
1647 # hack to avoid running hscpp
1648 $HsCpp = $Cat if ! $Cpp_flag_set;
1650 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) if $do_hscpp;
1654 We now think about whether to run hsc/cc or not (when hsc produces .s
1655 stuff, it effectively takes the place of both phases).
1657 To get the output file name right: for each phase that we are {\em
1658 not} going to run, set its input (i.e., the output of its preceding
1659 phase) to @"$ifile_root.<suffix>"@.
1662 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
1665 # Warning issued if -keep-hc-file-too is used without
1666 # -fvia-C (or the equivalent)
1668 if ( $HscOut ne '-C=' && $Keep_hc_file_too ) {
1669 print STDERR "$Pgm: warning: Native code generator to be used, -keep-hc-file-too will be ignored\n";
1672 if (! $do_cc && ! $do_as) { # stopping after hsc
1673 $hsc_out = ($Specific_output_file ne '')
1674 ? $Specific_output_file
1675 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
1677 $ofile_target = $hsc_out; # reset
1680 if (! $do_as) { # stopping after gcc (or hsc)
1681 $cc_as = ($Specific_output_file ne '')
1682 ? $Specific_output_file
1683 : &odir_ify($ifile_root, ( $Only_preprocess_hc ) ? 'i' : 's');
1685 $ofile_target = $cc_as; # reset
1691 Now the Haskell compiler, C compiler, and assembler
1695 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
1696 $ofile_target, $hifile_target);
1700 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
1701 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root) if ! $Only_preprocess_hc;
1704 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
1706 # save a copy of the .s file..
1707 &saveIntermediate($ifile_root , "s" , $cc_as) if ($do_as && $Keep_s_file_too);
1708 &runAs($as_out, $ifile_root) if $do_as;
1711 Finally, decide what to queue up for linker input.
1713 # tentatively assume we will eventually produce linker input:
1714 push(@Link_file, &odir_ify($ifile_root, 'o'));
1716 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
1719 if ( $ifile !~ /\.(lhs|hs|hc|c|s|a)$/ && $ifile !~ /_hc$/ ) {
1720 # There's sometimes confusion regarding .hi files; users
1721 # supplying them on the command line.
1722 if ( $ifile =~ /\.hi$/ ) {
1723 print STDERR "$Pgm: warning: found `$ifile' on command line; interface files should not be supplied here - ignoring it.\n";
1725 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n";
1727 # oops; we tentatively pushed the wrong thing; fix & do the right thing
1728 pop(@Link_file); push(@Link_file, $ifile);
1732 } # end of ProcessInputFile
1735 %************************************************************************
1737 \section[Driver-run-phases]{Routines to run the various phases}
1739 %************************************************************************
1743 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
1747 # Only add #line pragma if we're going to need it.
1748 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && " if ($Cpp_flag_set);
1749 $to_do .= "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
1751 push(@Files_to_tidy, $lit2pgm_hscpp );
1753 &run_something($to_do, 'literate pre-processor');
1759 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
1763 # Strictly speaking, echoing of the following line pragma is only required
1764 # on non-delit'ed input, as we've already added it during de-lit. However,
1765 # hscpp will then add a {-# LINE 1 "$lit2pgm_hsc" -} to the top of the file,
1766 # which is not very informative (but harmless). Hence, we uniformly have
1767 # {-# LINE 1 "$in_lit2pgm" #-} as the first line to all cpp'ed hsc input.
1769 $to_do = "echo '{-# LINE 1 \"$in_lit2pgm\" -}' > $hscpp_hsc && ";
1771 if ($HsCpp eq $Cat) {
1772 $to_do .= "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
1773 push(@Files_to_tidy, $hscpp_hsc );
1774 &run_something($to_do, 'Ineffective C pre-processor');
1776 local($includes) = '-I' . join(' -I',@Include_dir);
1777 $to_do .= "$HsCpp $Verbose @HsCpp_flags -D__HASKELL1__=$Haskell1Version -D__GLASGOW_HASKELL__=$GhcVersionInfo $includes $lit2pgm_hscpp >> $hscpp_hsc";
1778 push(@Files_to_tidy, $hscpp_hsc );
1779 &run_something($to_do, 'Haskellised C pre-processor');
1782 if ( $Only_preprocess_C ) {
1783 $to_do = "$Cat $hscpp_hsc";
1784 &run_something($to_do, '');
1792 sub runHscAndProcessInterfaces {
1793 local($ifile, $hscpp_hsc, $ifile_root, $ofile_target, $hifile_target) = @_;
1795 # $ifile is the original input file
1796 # $hscpp_hsc post-unlit, post-cpp, etc., input file
1797 # $ifile_root input filename minus suffix
1798 # $ofile_target the output file that we ultimately hope to produce
1799 # $hifile_target the .hi file ... (ditto)
1801 local($source_unchanged) = 1;
1803 # Check if the source file is up to date relative to the target; in
1804 # that case we say "source is unchanged" and let the compiler bail out
1805 # early if the import usage information allows it.
1807 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
1808 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
1810 # The informational messages below are now conditional on -v being set -- SOF
1811 if ( $ofile_target ne "_stdin.s" && ! -f $ofile_target ) {
1812 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n" if $Verbose;
1813 $source_unchanged = 0;
1816 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
1817 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
1819 if ( $hifile_target ne "_stdout" && ! -f $hifile_target ) {
1820 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n" if $Verbose;
1821 $source_unchanged = 0;
1824 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
1825 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
1827 if ( $ofile_target ne "_stdin.s" && $i_mtime > $o_mtime) {
1828 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n" if $Verbose;
1829 $source_unchanged = 0;
1832 # So if source_unchanged is still "1", we pass on the good news to the compiler
1833 # The -recomp flag can disable this, forcing recompilation
1834 if ($Do_recomp_chkr && $source_unchanged) {
1835 push(@HsC_flags, '-fsource-unchanged');
1840 &runHsc($ifile_root, $hsc_out, $hsc_hi, $going_interactive);
1842 # See if it bailed out early, saying nothing needed doing.
1843 # We work this out by seeing if it created an output .hi file
1845 if ( ! -f $hsc_hi && $ProduceHi !~ /-nohifile=/ ) {
1846 # Doesn't exist, so we bailed out early.
1847 # Tell the C compiler and assembler not to run
1848 $do_cc = 0; $do_as = 0;
1850 # Update dependency info, touch both object file and
1851 # interface file, so that the following invariant is
1854 # a dependent module's interface file should after recompilation
1855 # checking be newer than the interface files of its imports.
1857 # That is, if module A's interface file changes, then module B
1858 # (which import from A) needs to be checked.
1859 # If A's change does not affect B, which causes the compiler to bail
1860 # out early, we still need to touch the interface file of B. The reason
1861 # for this is that B may export A's interface.
1863 &run_something("touch $ofile_target",
1864 "Touch $ofile_target, to propagate dependencies") if $HscOut ne '-N=';
1865 &run_something("touch $hifile_target",
1866 "Touch $hifile_target, to propagate dependencies") if $ProduceHi =~ /-nohifile=/ ;
1870 # Didn't bail out early (new .hi file) so we thunder on
1872 # If non-interactive, heave in the consistency info at the end
1873 # NB: pretty hackish (depends on how $output is set)
1874 if ( ! $going_interactive ) {
1875 if ( $HscOut eq '-C=' ) {
1876 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
1878 } elsif ( $HscOut eq '-S=' ) {
1879 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
1880 $consist =~ s/,/./g;
1881 $consist =~ s/\//./g;
1882 $consist =~ s/-/_/g;
1883 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
1884 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
1886 &run_something($to_do, 'Pin on Haskell consistency info');
1890 # Interface-handling is important enough to live off by itself
1891 if ( $ProduceHi !~ /-nohifile=/ ) { # If we've produced one, process it.
1892 require('ghc-iface.prl') || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
1893 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
1895 # if we're going to split up object files,
1896 # we inject split markers into the .hc file now
1897 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
1898 &inject_split_markers ( $hsc_out );
1901 # save a copy of the .hc file, even if we are carrying on...
1902 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
1903 &saveIntermediate($ifile_root , "hc" , $hsc_out);
1913 local($ifile_root, $hsc_out, $hsc_hi, $going_interactive) = @_;
1915 # prepend comma to HsP flags (so hsc can tell them apart...)
1916 foreach $a ( @HsP_flags ) { $a = ",$a" unless $a =~ /^,/; }
1918 &makeHiMap() unless $HiMapDone;
1919 #print STDERR "HiIncludes: $HiIncludeString\n";
1920 push(@HsC_flags, "-himap=$HiIncludeString");
1922 # here, we may produce .hc/.s and/or .hi files
1923 local($output) = '';
1924 #@Files_to_tidy = ();
1926 if ( $going_interactive ) {
1927 # don't need .hi unless going to show it on stdout:
1928 $ProduceHi = '-nohifile=' if ! $HiOnStdout;
1929 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
1932 # set up for producing output/.hi; note that flag twiddling
1933 # may mean that nothing will actually be produced:
1934 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out";
1935 push(@Files_to_tidy, $hsc_hi, $hsc_out );
1937 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
1938 if ( $CollectingGCstats ) {
1939 push(@HsC_rts_flags, "-S$ifile_root.stat");
1940 push(@Files_to_tidy, "$ifile_root.stat");
1943 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
1944 # emit nofibbish time/bytes-alloc stats to stderr;
1945 # see later .stat file post-processing
1946 print STDERR "warning: both -Rgc-stats and -Rghc-timing used, -Rghc-timing wins." if $CollectingGCstats;
1947 push(@HsC_rts_flags, "-s$Tmp_prefix.stat");
1948 push(@Files_to_tidy, "$Tmp_prefix.stat");
1952 if ($Specific_dump_file ne '') {
1953 $dump = "2>> $Specific_dump_file";
1954 $Using_dump_file = 1;
1958 # Win32 only: If the command processor used by system()
1959 # exec()s the application as an ordinary Win32 executable,
1960 # we're in trouble here, since the command line is likely
1961 # to be > 255 chars long. To work around this situation,
1962 # $HsC also understands `at-files', i.e., `@file' on the
1963 # command line will cause $HsC to add the contents of `file'
1964 # to the command line.
1966 # [ Note: support for `at-files' is not compiled in by default ]
1967 $cmd_line_opts_via_at_file=0;
1968 if ($cmd_line_opts_via_at_file) {
1969 local($to_do_opts) = "$Tmp_prefix.opts";
1970 open(OPTS, "> $Tmp_prefix.opts") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.opts\n");
1971 print OPTS "$dump @HsC_flags $CoreLint $StgLint $Verbose";
1973 $to_do = "$HsC @HsP_flags ,$hscpp_hsc \@$Tmp_prefix.opts $output +RTS @HsC_rts_flags";
1975 $to_do = "$HsC @HsP_flags ,$hscpp_hsc $dump @HsC_flags $CoreLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
1977 &run_something($to_do, 'Haskell compiler');
1979 # finish business w/ nofibbish time/bytes-alloc stats
1980 &process_ghc_timings() if $CollectGhcTimings;
1984 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
1985 of (module-name, pathname) pairs, one per line, separated by a space.
1988 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1992 # collect in %HiMap; write later; also used elsewhere in driver
1994 local($mod, $path, $d, $e);
1996 # reset the global variables:
1998 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
2000 foreach $d ( @Import_dir ) {
2001 if ($HiIncludeString) {
2002 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix}";
2004 $HiIncludeString = "$d%.${HiSuffix}";
2009 foreach $d ( @SysImport_dir ) {
2010 if ($HiIncludeString) {
2011 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix_prelude}";
2013 $HiIncludeString = "${d}%.${HiSuffix_prelude}";
2022 %************************************************************************
2024 \section[Driver-misc-utils]{Miscellaneous utilities}
2026 %************************************************************************
2028 %************************************************************************
2030 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
2032 %************************************************************************
2036 local($ofile,$def_suffix) = @_;
2038 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
2042 local($orig_file, $def_suffix) = @_;
2043 if ($Specific_output_dir eq '') { # do nothing
2044 &osuf_ify($orig_file, $def_suffix);
2046 local ($orig_file_only);
2047 ($orig_file_only = $orig_file) =~ s|.*/||;
2048 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
2055 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
2057 local($includes) = '-I' . join(' -I', @Include_dir);
2060 local($c_flags) = "@CcBoth_flags";
2061 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2063 # "input" files to use that are not in some weird directory;
2064 # to help C compilers grok .hc files [ToDo: de-hackify]
2065 local($cc_help) = "ghc$$.c";
2066 local($cc_help_s) = "ghc$$.s";
2069 $s_output = ($is_hc_file || $TargetPlatform =~ /^(powerpc|rs6000|hppa|i386)/) ? $cc_as_o : $cc_as;
2070 $c_flags .= " @CcRegd_flags";
2071 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2073 # C compiler won't like the .hc extension. So we create
2074 # a tmp .c file which #include's the needful.
2075 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2076 if ( $is_hc_file ) {
2078 #ifdef __STG_GCC_REGS__
2079 # if ! (defined(MAIN_REG_MAP) || defined(MARK_REG_MAP) || defined(SCAN_REG_MAP) || defined(SCAV_REG_MAP) || defined(FLUSH_REG_MAP))
2080 # define MAIN_REG_MAP
2083 #include "stgdefs.h"
2085 # user may have asked for #includes to be injected...
2086 print TMP @CcInjects if $#CcInjects >= 0;
2088 # heave in the consistency info
2089 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2091 print TMP "#include \"$hsc_out\"\n";
2092 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2094 # Don't redirect stderr into intermediate file if slamming output onto stdout (e.g., with -E)
2095 local($fuse_stderr) = "2>&1" if ! $Only_preprocess_hc;
2096 local($to_do) = "$cc $Verbose $ddebug_flag $c_flags @Cpp_define -D__HASKELL1__=$Haskell1Version $includes $cc_help > $Tmp_prefix.ccout $fuse_stderr && ( if [ $cc_help_s != $s_output ] ; then mv $cc_help_s $s_output ; else exit 0 ; fi )";
2097 # note: __GLASGOW_HASKELL__ is pointedly *not* #defined at the C level.
2099 if ( $Only_preprocess_hc ) { # HACK ALERT!
2100 $to_do =~ s/ -S\b//g;
2102 push(@Files_to_tidy, $cc_help, $cc_help_s, $s_output );
2103 $PostprocessCcOutput = 1 if ! $Only_preprocess_hc; # hack, dear hack...
2104 &run_something($to_do, 'C compiler');
2105 $PostprocessCcOutput = 0;
2106 if ( $Only_preprocess_hc ) {
2107 system("$Cat $Tmp_prefix.ccout");
2109 unlink($cc_help, $cc_help_s);
2115 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2117 if ( $is_hc_file ) {
2118 # dynamically load assembler-fiddling code, which we are about to use:
2119 require('ghc-asm.prl')
2120 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2123 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2126 # post-process the assembler [.hc files only]
2127 &mangle_asm($cc_as_o, $cc_as);
2131 #OLD: local($target) = 'oops';
2132 #OLD: $target = '-alpha' if $TargetPlatform =~ /^alpha-/;
2133 #OLD: $target = '-hppa' if $TargetPlatform =~ /^hppa/;
2134 #OLD: $target = '-old-asm' if $TargetPlatform =~ /^i386-/;
2135 #OLD: $target = '-m68k' if $TargetPlatform =~ /^m68k-/;
2136 #OLD: $target = '-mips' if $TargetPlatform =~ /^mips-/;
2137 #OLD: $target = '' if $TargetPlatform =~ /^powerpc-/;
2138 #OLD: $target = '-solaris' if $TargetPlatform =~ /^sparc-sun-solaris2/;
2139 #OLD: $target = '-sparc' if $TargetPlatform =~ /^sparc-sun-sunos4/;
2141 #OLD: if ( $target ne '' ) {
2142 #OLD: require("ghc-asm$target.prl")
2143 #OLD: || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm$target.prl!\n");
2144 #OLD: &mangle_asm($cc_as_o, "$cc_as-2"); # the OLD one!
2145 #OLD: &run_something("$Cmp -s $cc_as-2 $cc_as || $Diff $cc_as-2 $cc_as 1>&2 || exit 0",
2146 #OLD: "Diff'ing old and new mangled .s files"); # NB: to stderr
2149 } elsif ($TargetPlatform =~ /^hppa/) {
2150 # minor mangling of non-threaded files for hp-pa only
2151 require('ghc-asm.prl')
2152 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2153 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2155 } elsif ($TargetPlatform =~ /^powerpc|^rs6000/) {
2156 # minor mangling of non-threaded files for powerpcs and rs6000s
2157 require('ghc-asm.prl')
2158 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-powerpc.prl!\n");
2159 &mini_mangle_asm_powerpc($cc_as_o, $cc_as);
2160 } elsif ($TargetPlatform =~ /^i386/) {
2161 # extremely-minor OFFENSIVE mangling of non-threaded just one file
2162 require('ghc-asm.prl')
2163 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2164 &mini_mangle_asm_i386($cc_as_o, $cc_as);
2167 # save a copy of the .s file, even if we are carrying on...
2168 #if ($do_as && $Keep_s_file_too) {
2169 # &saveIntermediate($ifile_root , "s" , $cc_as);
2176 local($as_out, $ifile_root) = @_;
2178 local($asmblr) = ( $As ) ? $As : $CcRegd;
2180 if ( ! $SplitObjFiles ) {
2181 local($to_do) = "$asmblr -o $as_out -c @As_flags $cc_as";
2182 push(@Files_to_tidy, $as_out );
2183 &run_something($to_do, 'Unix assembler');
2185 } else { # more complicated split-ification...
2187 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2189 # If -odir is used, great, just pin it in front of the
2190 # generated split file names. If it hasn't been set, we
2191 # snatch it from the ifile_root.
2195 if ( $Specific_output_dir eq '' ) {
2196 $Specific_output_dir = ${ifile_root};
2199 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2200 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2201 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2202 push(@Files_to_tidy, $split_out );
2204 &run_something($to_do, 'Unix assembler');
2210 %************************************************************************
2212 \subsection[Driver-run-something]{@run_something@: Run a phase}
2214 %************************************************************************
2218 local($str_to_do, $tidy_name) = @_;
2220 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2221 print STDERR "$str_to_do\n" if $Verbose;
2223 if ($Using_dump_file) {
2224 open(DUMP, ">> $Specific_dump_file")
2225 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2226 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2228 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2231 local($return_val) = 0;
2233 if ( length($str_to_do) > 4000) {
2234 # 4000 - on the random side, just like the *real* ARG_MAX
2237 # With some shells, command lines of this length may
2238 # very well cause trouble. To safeguard against this, we squirrel the
2239 # command into a file and exec that.
2240 local ($sh) = $ENV{'REAL_SHELL'};
2241 print STDERR "Backup plan A: saving cmd line in ${Tmp_prefix}.sh and executing that with $sh\n" if $Verbose;
2242 open (TEMP, "> ${Tmp_prefix}.sh") ||
2243 &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.sh'\n");
2244 print TEMP "$Time $str_to_do\n";
2246 &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.sh'\n");
2247 system("$sh $Tmp_prefix.sh");
2250 unlink "${Tmp_prefix}.sh";
2252 system("$Time $str_to_do");
2256 if ( $PostprocessCcOutput ) { # hack, continued
2257 open(CCOUT, "< $Tmp_prefix.ccout")
2258 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2260 next if /attribute directive ignored/;
2261 next if /call-clobbered/;
2262 next if /from .*COptRegs\.lh/;
2263 next if /from .*(stg|rts)defs\.h:/;
2264 next if /from ghc\d+.c:\d+:/;
2265 next if /from .*\.lc/;
2266 next if /from .*SMinternal\.l?h/;
2267 next if /ANSI C does not support \`long long\'/;
2268 next if /warning:.*was declared \`extern\' and later \`static\'/;
2269 next if /warning: assignment discards \`const\' from pointer target type/;
2270 next if /: At top level:$/;
2271 next if /: In function \`.*\':$/;
2272 next if /\`ghc_cc_ID\' defined but not used/;
2275 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2278 if ($return_val != 0) {
2279 if ($Using_dump_file) {
2280 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2282 &tidy_up_and_die($return_val, '');
2284 $Using_dump_file = 0;
2288 %************************************************************************
2290 \subsection[Driver-ghc-timing]{Emit nofibbish GHC timings}
2292 %************************************************************************
2294 NB: nearly the same as in @runstdtest@ script.
2297 sub process_ghc_timings {
2298 local($StatsFile) = "$Tmp_prefix.stat";
2299 local($SysSpecificTiming) = 'ghc';
2301 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2302 local($max_live) = 0;
2303 local($tot_live) = 0; # for calculating residency stuff
2304 local($tot_samples) = 0;
2307 if (! /Minor/ && /^\s*\d+\s+\d+\s+(\d+)\s+\d+\.\d+\%/ ) {
2308 $max_live = $1 if $max_live < $1;
2312 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2314 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2315 $MaxResidency = $1; $ResidencySamples = $2;
2318 $GCs = $1 if /^\s*([0-9,]+) garbage collections? performed/;
2320 # The presence of -? in the following pattern is only there to
2321 # accommodate 0.29 && <= 2.05 RTS'
2322 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*-?(\d+\.\d\d)s elapsed\)/ ) {
2323 $InitTime = $1; $InitElapsed = $2;
2324 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2325 $MutTime = $1; $MutElapsed = $2;
2326 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2327 $GcTime = $1; $GcElapsed = $2;
2330 close(STATS) || die "Failed when closing $StatsFile\n";
2331 if ( $tot_samples > 0 ) {
2332 $ResidencySamples = $tot_samples;
2333 $MaxResidency = $max_live;
2334 $AvgResidency = int ($tot_live / $tot_samples) ;
2337 # warn about what we didn't find
2338 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2339 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2340 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2341 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2342 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2343 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2344 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2345 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2347 # things we didn't necessarily expect to find
2348 $MaxResidency = 0 unless defined($MaxResidency);
2349 $AvgResidency = 0 unless defined($AvgResidency);
2350 $ResidencySamples = 0 unless defined($ResidencySamples);
2353 $BytesAlloc =~ s/,//g;
2354 $MaxResidency =~ s/,//g;
2356 $InitTime =~ s/,//g;
2357 $InitElapsed =~ s/,//g;
2359 $MutElapsed =~ s/,//g;
2361 $GcElapsed =~ s/,//g;
2363 # print out what we found
2364 print STDERR "<<$SysSpecificTiming: ",
2365 "$BytesAlloc bytes, $GCs GCs, $AvgResidency/$MaxResidency avg/max bytes residency ($ResidencySamples samples), $InitTime INIT ($InitElapsed elapsed), $MutTime MUT ($MutElapsed elapsed), $GcTime GC ($GcElapsed elapsed)",
2366 " :$SysSpecificTiming>>\n";
2373 %************************************************************************
2375 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2377 %************************************************************************
2381 local($to_do) = "\n$Rm $Tmp_prefix*";
2382 if ( $Tmp_prefix !~ /^\s*$/ ) {
2383 print STDERR "$to_do\n" if $Verbose;
2388 sub tidy_up_and_die {
2389 local($return_val, $msg) = @_;
2391 # delete any files to tidy
2392 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2393 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2397 exit (($return_val == 0) ? 0 : 1);
2401 %************************************************************************
2403 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2405 %************************************************************************
2407 Some command-line arguments take an argument, e.g.,
2408 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2409 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2410 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2412 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2413 gobble the second argument (and probably set the heapsize to something
2417 local(*Args, $option, $rest_of_arg) = @_;
2419 if ($rest_of_arg ne '') {
2420 return($rest_of_arg);
2421 } elsif ($#Args >= 0) {
2422 local($temp) = $Args[0]; shift(@Args);
2425 print STDERR "$Pgm: no argument following $option option\n";
2436 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2438 foreach $f ( @HsC_antiflags ) {
2439 return(0) if $flag eq $f;
2441 # foreach $f ( @HsC_flags ) {
2442 # return(0) if $flag eq $f;
2447 sub squashHscFlag { # pretty terrible
2451 foreach $f ( @HsC_flags ) {
2452 if ($flag eq $f) { $f = ''; }
2460 foreach $f ( @flags ) {
2461 push( @HsC_flags, $f ) if &isntAntiFlag($f);
2468 local($syslib) = @_;
2470 # The Win32 lib sources live in hslibs/
2471 if ( $syslib eq 'win32' && ! $INSTALLING ) {
2472 unshift(@SysImport_dir, "$TopPwd/hslibs/$syslib/src");
2473 push(@SysLibrary_dir, "$TopPwd/hslibs/$syslib/src");
2475 unshift(@SysImport_dir,
2476 $INSTALLING ? "$InstLibDirGhc/imports/$syslib"
2477 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/$syslib");
2479 push(@SysLibrary_dir,
2480 $INSTALLING ? ("$InstLibDirGhc")
2481 : ("$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/$syslib",
2482 "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/$syslib/cbits"));
2484 push(@SysLibrary, "-lHS$syslib");
2485 push(@SysLibrary, "-lHS${syslib}_cbits")
2486 unless $syslib =~ /^(contrib|exts|concurrent|win32)$/; #HACK! have no cbits
2490 Source files may have {-# OPTIONS ... #-} pragmas at the top, containing
2491 command line options we want to append to collection of commands specified
2492 directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell
2493 file for any such pragmas:
2496 sub check_for_source_options {
2497 local($file,$ifile) = @_;
2498 local($comment_start,$comment_end);
2500 if ($ifile =~ /\.hc$/ ||
2503 $ifile =~ /_s$/ ) { # `Real' C intermediate
2504 $comment_start = "/\\*";
2505 $comment_end = "\\*/";
2506 } else { # Assume it is a file containing Haskell source
2507 $comment_start = "{-#";
2508 $comment_end = "#-}";
2511 open(FILE,$file) || return(1); # No big loss
2514 if ( /^${comment_start} OPTIONS (.*)${comment_end}$/ ) {
2515 # add the options found at the back of the command line.
2516 local(@entries) = split(/\s+/,$1);
2517 print STDERR "Found OPTIONS " . join(' ',@entries) . " in $file\n" if $Verbose;
2518 push(@File_options, @entries);
2520 elsif ( /^$/ ) { # ignore empty lines
2523 elsif ( /^#line.+$/ ) { # ignore comment lines (unused..ToDo: rm )
2526 elsif ( /^{-# LINE.+$/ ) { # ignore line pragmas
2529 else { # stop looking, something non-empty / not
2530 # ${comment_start} OPTIONS .. ${comment_end} encountered.
2531 close(FILE);return(0);
2540 We split the initial argv up into three arrays:
2546 the reason for doing so is to be able to deal
2547 with {-# OPTIONS #-} pragma in source files properly.
2553 arg: while($_ = $args[0]) {
2555 # sigh, we have to deal with these -option arg specially here.
2556 /^-(tmpdir|odir|ohi|o|isuf|osuf|hisuf|hisuf-prelude|odump|syslib)$/ &&
2557 do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; };
2558 /^--?./ && do { push(@Cmd_opts, $_); next arg; };
2560 if (/\.([^_]+_)?[oa]$/) {
2561 push(@Link_file, $_);
2563 push(@Input_file, $_);
2566 # input files must exist:
2568 print STDERR "$Pgm: input file doesn't exist: $_\n";
2576 When saving an intermediate file (.hc or .s) away, we
2577 have to prefix any OPTIONS found in the original source file.
2580 sub saveIntermediate {
2581 local ($final,$suffix,$tmp)= @_ ;
2584 # $final -- root of where to park ${final}.${suffix}
2585 # $tmp -- temporary file where hsc put the intermediate file.
2587 # Delete the old file
2588 $to_do = "$Rm ${final}.${suffix}"; &run_something($to_do, "Removing old .${suffix} file");
2590 if ( $#File_options >= 0 ) { # OPTIONS found in Haskell source unit
2591 # Add OPTION comment to the top of the generated .${suffix} file
2592 open(TEMP, "> ${final}.${suffix}") || &tidy_up_and_die(1,"Can't open ${final}.${suffix}\n");
2593 print TEMP "/* OPTIONS " . join(' ',@File_options) . " */\n";
2595 print STDERR "Prepending OPTIONS: " . join(' ',@File_options) . " to ${final}.${suffix}\n" if $Verbose;
2597 $to_do = "$Cat $tmp >> ${final}.${suffix}";
2598 &run_something($to_do, "Saving copy of .${suffix} file");
2605 Command-line processor
2611 # can't use getopt(s); what we want is too complicated
2613 arg: while($_ = $Args[0]) {
2616 #---------- help -------------------------------------------------------
2617 if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; }
2619 #-----------version ----------------------------------------------------
2620 /^--version$/ && do { print STDERR "${ProjectName}, version ${ProjectVersion}, patchlevel ${ProjectPatchLevel}\n"; exit $Status; };
2622 #---------- verbosity and such -----------------------------------------
2623 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
2625 #---------- what phases are to be run ----------------------------------
2626 /^-(no-)?recomp/ && do { $Do_recomp_chkr = ($1 eq '') ? 1 : 0; next arg; };
2628 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
2629 # change the global default:
2630 # we won't run cat; we'll run the real thing
2632 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
2634 # stop after generating C
2636 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
2637 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
2639 # leave out actual C generation (debugging) [also turns off interface gen]
2642 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
2643 # _do_ generate an interface; usually used as: -noC -hi
2644 /^-hi-with-(.*)$/ && do { $HiOnStdout = 1; $HiWith .= " $1" ; $ProduceHi = '-hifile='; next arg; };
2645 # limit ourselves to outputting a particular section.
2647 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
2648 # don't generate an interface (even if generating C)
2650 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
2651 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
2652 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
2653 /^-keep-hi-diffs$/ && do { $Keep_HiDiffs = 1; next arg; };
2655 # show/disable diffs if the interface file changes
2657 /^-E$/ && do { push(@CcBoth_flags, '-E');
2658 $Only_preprocess_C = 1;
2659 $Do_as = 0; $Do_lnkr = 0; next arg; };
2660 # stop after preprocessing C
2661 /^-M$/ && do { $Only_generate_deps = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2662 # only generate dependency information.
2663 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
2664 # stop after generating assembler
2666 /^-c$/ && do { $Do_lnkr = 0; next arg; };
2667 # stop after generating .o files
2669 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
2670 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
2671 # don't do consistency-checking after a link
2673 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', '');
2674 $Tmp_prefix = "$Tmp_prefix/ghc$$";
2675 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
2677 # use an alternate directory for temp files
2679 #---------- redirect output --------------------------------------------
2681 # -o <file>; applies to the last phase, whatever it is
2682 # "-o -" sends it to stdout
2683 # if <file> has a directory component, that dir must already exist
2685 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', '');
2687 # Hack, of the worst sort: don't do validation of
2688 # odir argument if you're using -M (dependency generation).
2690 if ( ! $Only_generate_deps && ! -d $Specific_output_dir) {
2691 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
2696 /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', '');
2697 if ($Specific_output_file ne '-'
2698 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
2699 local($dir_part) = $1;
2700 if (! -d $dir_part) {
2701 print STDERR "$Pgm: no such directory: $dir_part\n";
2707 # NB: -isuf not documented yet (because it doesn't work yet)
2708 /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', '');
2709 if ($Isuffix =~ /\./ ) {
2710 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
2715 /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', '');
2716 if ($Osuffix =~ /\./ ) {
2717 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
2722 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
2723 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', '');
2724 if ($Specific_hi_file ne '-'
2725 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
2726 local($dir_part) = $1;
2727 if (! -d $dir_part) {
2728 print STDERR "$Pgm: no such directory: $dir_part\n";
2734 # The suffix to use when looking for interface files
2735 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', '');
2736 if ($HiSuffix =~ /\./ ) {
2737 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
2741 # ToDo: remove, not a `normal' user thing to do (should be automatic)
2742 /^-hisuf-prelude$/ && do { $HiSuffix_prelude = &grab_arg_arg(*Args,'-hisuf-prelude', '');
2743 if ($HiSuffix =~ /\./ ) {
2744 print STDERR "$Pgm: -hisuf-prelude suffix shouldn't contain a .\n";
2748 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', '');
2749 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
2750 local($dir_part) = $1;
2751 if (! -d $dir_part) {
2752 print STDERR "$Pgm: no such directory: $dir_part\n";
2758 #-------------- scc & Profiling Stuff ----------------------------------
2760 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
2763 # generate auto SCCs on top level bindings
2764 # -auto-all = all top level bindings
2765 # -auto = only top level exported bindings
2766 $PROFauto = ( /-all/ )
2767 ? '-fauto-sccs-on-all-toplevs'
2768 : '-fauto-sccs-on-exported-toplevs';
2771 /^-caf-all/ && do { # generate individual CAF SCC annotations
2772 $PROFcaf = '-fauto-sccs-on-individual-cafs';
2775 /^-ignore-scc$/ && do {
2776 # forces ignore of scc annotations even if profiling
2777 $PROFignore_scc = '-W';
2780 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
2783 /^-unprof-scc-auto/ && do {
2784 # generate auto SCCs on top level bindings when not profiling.
2785 # Used to measure optimisation effects of presence of sccs.
2786 $UNPROFscc_auto = ( /-all/ )
2787 ? '-fauto-sccs-on-all-toplevs'
2788 : '-fauto-sccs-on-exported-toplevs';
2791 #--------- ticky/concurrent/parallel -----------------------------------
2792 # we sort out the details a bit later on
2794 /^-concurrent$/ && do { $CONCURing = 'c'; &add_syslib('concurrent'); next arg; };
2795 # concurrent Haskell; implies -syslib conc
2796 /^-gransim$/ && do { $GRANing = 'g'; &add_syslib('concurrent'); next arg; }; # GranSim
2797 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
2798 /^-parallel$/ && do { $PARing = 'p'; &add_syslib('concurrent'); next arg; }; # parallel Haskell
2800 #-------------- "user ways" --------------------------------------------
2802 (/^-user-setup-([a-oA-Z])$/ ) &&
2804 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
2806 local($stuff) = $UserSetupOpts{$BuildTag};
2807 local(@opts) = split(/\s+/, $stuff);
2809 # feed relevant ops into the arg-processing loop (if any)
2810 unshift(@Args, @opts) if $#opts >= 0;
2814 #---------- set search paths for libraries and things ------------------
2816 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
2817 # prepends the items to the list); -I is for including C .h files.
2819 /^-i$/ && do { @Import_dir = (); # import path cleared!
2820 @SysImport_dir = ();
2821 print STDERR "WARNING: import paths cleared by `-i'\n";
2824 /^-i(.*)/ && do { local(@new_items)
2825 = split( /:/, &grab_arg_arg(*Args,'-i', $1));
2826 unshift(@Import_dir, @new_items);
2829 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; };
2830 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; };
2831 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; };
2833 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1);
2834 print STDERR "$Pgm: no such system library (-syslib): $syslib\n",
2835 $Status++ unless $syslib =~ /^(exts|misc|posix|concurrent|win32)$/;
2838 # The posix library is a `special' in that it relies on
2839 # the ghc system library (packed strings). Wielding our
2840 # sledgehammer, the problem is solved by silently including
2841 # the ghc system library as well.
2842 # (ToDo: `nub' -syslib list)
2844 &add_syslib($syslib);
2845 if ( $syslib eq 'posix' ) {
2846 &add_syslib('misc');
2847 } elsif ( $syslib eq 'misc' &&
2848 $TargetPlatform =~ /-solaris2$/ ) {
2849 # needed for Berkeley socket/nwork stuff.
2850 push(@SysLibrary, '-lnsl -lsocket');
2851 } elsif ( $syslib eq 'win32' &&
2852 $TargetPlatform =~ /-cygwin32$/ ) {
2853 # need to get at UI/Graphics functionality.
2854 push(@SysLibrary, '-luser32 -lgdi32');
2858 #=======================================================================
2859 # various flags that we can harmlessly send to one program or another
2860 # (we will later "reclaim" some of the compiler ones now sent to gcc)
2861 #=======================================================================
2863 #---------- this driver itself (ghc) -----------------------------------
2864 # these change what executable is run for each phase:
2865 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
2866 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
2867 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
2868 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
2869 /^-pgma(.*)$/ && do { $As = $1; next arg; };
2870 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
2871 /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; };
2873 #---------- the get-anything-through opts (all pgms) -------------------
2874 # these allow arbitrary option-strings to go to any phase:
2875 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
2876 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
2877 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
2878 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
2879 /^-optp(.*)$/ && do { push(@HsP_flags, $1); next arg; };
2880 /^-optcpp(.*)$/ && do { push(@Cpp_define, $1); $Only_preprocess_hc = ($1 eq "-E"); next arg; };
2881 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
2882 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
2883 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
2884 /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; };
2886 #---------- Haskell C pre-processor (hscpp) ----------------------------
2887 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; };
2888 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; };
2890 #---------- post-Haskell "assembler"------------------------------------
2891 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
2892 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
2894 #---------- Haskell compiler (hsc) -------------------------------------
2896 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
2897 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
2899 /^-fhaskell-1\.3$/ && do { next arg; }; # a no-op right now
2901 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
2903 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
2904 # don't do stack checking using page fault `trick'.
2906 /^-fstack-check$/ && do { $StkChkByPageFaultOK = 0; next arg; };
2908 # have the compiler proper generate concurrent code,
2909 # really only used when you want to configure your own
2910 # special user compilation way. (Use -concurrent when
2911 # compiling `Concurrent Haskell' programs).
2913 # (ditto for -fgransim, fscc-profiling and -fticky-ticky)
2915 /^-fconcurrent$/ && do { push(@HsC_flags,$_); next arg; };
2916 /^-fscc-profiling$/ && do { push(@HsC_flags,$_); next arg; };
2917 /^-fticky-ticky$/ && do { push(@HsC_flags,$_); next arg; };
2918 /^-fgransim$/ && do { push(@HsC_flags,$_); next arg; };
2920 /^-split-objs/ && do {
2921 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|rs6000|sparc)-/ ) {
2923 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
2928 push(@HsC_flags, "-fglobalise-toplev-names");
2929 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
2931 require('ghc-split.prl')
2932 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
2936 /^-fallow-overlapping-instances$/ && do { push(@HsC_flags, $_);
2939 && do { push(@HsC_flags, $_);
2940 push(@HsP_flags, '-N');
2942 # push(@HsC_flags, '-fshow-import-specs');
2944 # -fglasgow-exts implies -syslib exts
2945 &add_syslib('exts');
2949 /^-fspeciali[sz]e-unboxed$/
2950 && do { $Oopt_DoSpecialise = '-fspecialise';
2951 $Oopt_SpecialiseUnboxed = '-fspecialise-unboxed';
2954 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
2955 /^-fno-speciali[sz]e$/
2956 && do { $Oopt_DoSpecialise = ''; next arg; };
2959 # Now the foldr/build options, which are *on* by default (for -O).
2962 && do { $Oopt_FoldrBuild = 1;
2963 $Oopt_FB_Support = '-fdo-arity-expand';
2967 /^-fno-foldr-build$/
2968 && do { $Oopt_FoldrBuild = 0;
2969 $Oopt_FB_Support = '';
2972 /^-fno-foldr-build-rule$/
2973 && do { $Oopt_FoldrBuild = 0;
2976 /^-fno-enable-tech$/
2977 && do { $Oopt_FB_Support = '';
2980 /^-fno-snapback-to-append$/
2981 && do { $Oopt_FoldrBuildInline .= ' -fdo-not-fold-back-append ';
2984 # --------------- Renamer -------------
2987 /^-fno-prune-tydecls$/ && do { push(@HsC_flags, $_); next arg; };
2988 /^-fno-prune-instdecls$/ && do { push(@HsC_flags, $_); next arg; };
2992 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
2993 /^-fvia-[cC]$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
2998 && do { push(@HsC_flags, $_); next arg };
3000 /^-funfold-casms-in-hi-file$/
3001 && do { push(@HsC_flags, $_); next arg };
3003 /^(-fmax-simplifier-iterations)(.*)$/
3004 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2);
3006 /^(-fshow-simplifier-progress)/
3007 && do { $Oopt_ShowSimplifierProgress = $1;
3010 /^-fno-pedantic-bottoms$/
3011 && do { $Oopt_PedanticBottoms = ''; next arg; };
3013 /^-fdo-monad-eta-expansion$/
3014 && do { $Oopt_MonadEtaExpansion = $_; next arg; };
3016 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
3017 && do { push(@HsC_flags, $_); next arg; };
3019 /^(-freturn-in-regs-threshold)(.*)$/
3020 && do { local($what) = $1;
3021 local($num) = &grab_arg_arg(*Args,$what, $2);
3022 if ($num < 2 || $num > 8) {
3023 die "Bad experimental flag: $_\n";
3025 $HscOut = '-C='; # force using C compiler
3026 push(@HsC_flags, "$what$num");
3027 push(@CcRegd_flags, "-D__STG_REGS_AVAIL__=$num");
3031 # --------------- Warnings etc. ------
3033 /^-fshow-import-specs/
3034 && do { push(@HsC_flags, $_); next arg; };
3036 /^-fsignatures-required/
3037 && do { push(@HsC_flags, $_); next arg; };
3039 /^-fwarn-(.*)$/ && do { push(@HsC_flags, $_); next arg; };
3041 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
3042 &squashHscFlag("-f$1");
3045 /^-W$/ && do { push(@HsC_flags, @MinusWOpts); next arg; };
3046 /^-Wall$/ && do { push(@HsC_flags, @MinusWallOpts); next arg; };
3047 /^(-Wnot|w)$/ && do { foreach (@Hsc_flags) {
3048 /^-fwarn-(.*)$/ && do { $_=''; };
3050 push(@HsC_antiflags, @StandardWarnings);
3053 # --------------- platform specific flags (for gcc mostly) ----------------
3055 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes,
3056 # for 2.6.x..?, does not apply for 2.7.2
3058 unshift(@CcBoth_flags, ( $_ ));
3061 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
3062 && do { # for GCC for SPARCs
3063 unshift(@CcBoth_flags, ( $_ ));
3066 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
3067 $StolenX86Regs = $1;
3070 #*************** ... and lots of debugging ones (form: -d* )
3072 # -d(no-)core-lint is done this way so it is turn-off-able.
3073 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
3074 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
3075 # Ditto for STG lint
3076 /^-dstg-lint/ && do { $StgLint = '-dstg-lint'; next arg; };
3077 /^-dno-stg-lint/ && do { $StgLint = ''; next arg; };
3079 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
3080 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
3081 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
3082 /^-dshow-rn-stats/ && do { push(@HsC_flags, $_); next arg; };
3083 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
3084 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
3085 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
3086 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
3088 #*************** ... and now all these -R* ones for its runtime system...
3090 /^-Rscale-sizes?(.*)/ && do {
3091 $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1);
3094 /^(-H|-Rmax-heapsize)(.*)/ && do {
3095 local($heap_size) = &grab_arg_arg(*Args,$1, $2);
3096 if ($heap_size =~ /(\d+)[Kk]$/) {
3097 $heap_size = $1 * 1000;
3098 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
3099 $heap_size = $1 * 1000 * 1000;
3100 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
3101 $heap_size = $1 * 1000 * 1000 * 1000;
3103 if ($heap_size <= 0) {
3104 print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n";
3105 $Specific_heap_size = 0;
3107 # if several heap sizes given, take the largest...
3108 } elsif ($heap_size >= $Specific_heap_size) {
3109 $Specific_heap_size = $heap_size;
3111 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n";
3115 /^(-K|Rmax-(stk|stack)size)(.*)/ && do {
3117 local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3);
3118 if ($stk_size =~ /(\d+)[Kk]$/) {
3119 $stk_size = $1 * 1000;
3120 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
3121 $stk_size = $1 * 1000 * 1000;
3122 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
3123 $stk_size = $1 * 1000 * 1000 * 1000;
3125 if ($stk_size <= 0) {
3126 print STDERR "$Pgm: resetting stack-size to zero!!! $stk_size\n";
3127 $Specific_stk_size = 0;
3129 # if several stack sizes given, take the largest...
3130 } elsif ($stk_size >= $Specific_stk_size) {
3131 $Specific_stk_size = $stk_size;
3133 print STDERR "$Pgm: ignoring stack-size-setting option ($flag $stk_size)...not the largest seen\n";
3137 /^-Rgc-stats$/ && do { $CollectingGCstats++;
3138 # the two RTSs do this diff ways; we will try to compensate
3141 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
3143 #---------- C high-level assembler (gcc) -------------------------------
3144 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
3146 # -dgcc-lint is a useful way of making GCC very fussy.
3147 # From alan@spri.levels.unisa.edu.au (Alan Modra).
3148 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
3149 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
3150 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
3152 # inject "#include <wurble>" into the compiler's C output!
3154 /^-#include(.*)/ && do {
3155 local($to_include) = &grab_arg_arg(*Args,'-#include', $1);
3156 push(@CcInjects, "#include $to_include\n");
3159 #---------- Linker (gcc, really) ---------------------------------------
3161 /^-static$/ && do { push(@Ld_flags, $_); next arg; };
3163 #---------- mixed cc and linker magic ----------------------------------
3164 # this optimisation stuff is finally sorted out later on...
3166 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
3168 /^-O[1-2]?$/ && do {
3169 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
3170 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
3172 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
3175 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
3177 /^-Ofile(.*)/ && do {
3179 local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1);
3180 @HsC_minusO3_flags = ();
3182 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
3185 s/\#.*//; # death to comments
3186 s/[ \t]+//g; # death to whitespace
3187 next if /^$/; # ditto, blank lines
3188 s/([()*{}])/\\$1/g; # protect shell metacharacters
3190 push(@CcBoth_flags, $1);
3192 push(@HsC_minusO3_flags, $_);
3198 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
3199 # in the consistency info
3203 #---------- linking .a file --------------------------------------------
3205 /^-Main(.*)/ && do {
3206 # specifies main or mainPrimIO to be linked
3210 #---------- catch unrecognized flags -----------------------------------
3213 print STDERR "$Pgm: unrecognised option: $_\n";
3219 } # end of processArgs