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 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}";
141 $InstSysLibDir = ( $INSTALLING ) ? "${InstLibDirGhc}/hslibs" : "$TopPwd/hslibs";
143 $Status = 0; # just used for exit() status
146 # set up signal handler
147 sub quit_upon_signal { &tidy_up_and_die(1, ''); }
148 $SIG{'INT'} = 'quit_upon_signal';
149 $SIG{'QUIT'} = 'quit_upon_signal';
151 # where to get "require"d .prl files at runtime (poor man's dynamic loading)
152 # (use LIB, not DATA, because we can't be sure of arch-independence)
153 @INC = ( ( $INSTALLING ) ? $InstLibDirGhc
154 : "$TopPwd/${CURRENT_DIR}" );
156 if ( $ENV{'TMPDIR'} ) { # where to make tmp file names
157 $Tmp_prefix = ($ENV{'TMPDIR'} . "/ghc$$");
159 print STDERR "TMPDIR has not been set to anything useful!\n" if (${TMPDIR} eq '');
160 $Tmp_prefix ="${TMPDIR}/ghc$$"; # TMPDIR set via Makefile when booting..
161 $ENV{'TMPDIR'} = ${TMPDIR}; # set the env var as well
164 # Some shells run into real trouble when command line and environment
165 # gets big (e.g., cmd lines of >4K to /bin/sh causes havoc on our
166 # Solaris-2.5.1 boxes - even though sysconf(_SC_ARG_MAX) reports 1M ...).
167 # To work around any such */bin/sh* problems, we will scribble such
168 # awfully long command lines into a temp file and exec that temp file
169 # with $(REAL_SHELL) (don't use the SHELL variable directly as this
170 # will normally get you the wrong thing when the driver is invoked
171 # from within `make'). If the REAL_SHELL variable isn't set, you'll
172 # get SHELL. This is all a terrible hack. (in case you hadn't reached
173 # the same conclusion by now :-)
177 if ( ! $ENV{'REAL_SHELL'} ) {
178 $ENV{'REAL_SHELL'} = $ENV{'SHELL'};
181 @Files_to_tidy = (); # files we nuke in the case of abnormal termination
183 $Unlit = ( $INSTALLING ) ? "$InstLibExecDirGhc/unlit"
184 : "$TopPwd/${CURRENT_DIR}/${GHC_UNLIT}";
188 $Diff = $CONTEXT_DIFF;
193 $HsCpp = # but this is re-set to "cat" (after options) if -cpp not seen
194 ( $INSTALLING ) ? "$InstLibExecDirGhc/hscpp"
195 : "$TopPwd/${CURRENT_DIR}/${GHC_HSCPP}";
198 $genSPECS_flag = ''; # See ../utils/hscpp/hscpp.prl
199 $HsC = ( $INSTALLING ) ? "$InstLibExecDirGhc/hsc"
200 : "$TopPwd/${CURRENT_DIR}/${GHC_HSC}";
202 # For PVM fiends only
203 $SysMan = ( $INSTALLING ) ? "$InstLibExecDirGhc/SysMan"
204 : "$TopPwd/${CURRENT_DIR}/${GHC_SYSMAN}";
209 # HsC_rts_flags: if we want to talk to the LML runtime system
210 # NB: we don't use powers-of-2 sizes, because this may do
211 # terrible things to cache behavior.
213 $Specific_heap_size = 6 * 1000 * 1000;
214 $Specific_stk_size = 1000 * 1000;
215 $Scale_sizes_by = 1.0;
219 The variables set by @setupOptFlags@ represent parts of the
220 -O/-O2/etc ``templates,'' which are filled in later, using these.
221 These are the default values, which may be changed by user flags.
225 $Oopt_UnfoldingUseThreshold = '-fsimpl-uf-use-threshold3';
226 $Oopt_MaxSimplifierIterations = '-fmax-simplifier-iterations4';
227 $Oopt_PedanticBottoms = '-fpedantic-bottoms'; # ON by default
228 $Oopt_MonadEtaExpansion = '';
229 $Oopt_FinalStgProfilingMassage = '';
231 $Oopt_SpecialiseUnboxed = '';
232 $Oopt_DoSpecialise = ''; # ToDo:LATER: '-fspecialise';
233 $Oopt_FoldrBuild = 0; # *Off* by default!
234 $Oopt_FB_Support = ''; # was '-fdo-arity-expand';
235 # $Oopt_FoldrBuildWW = 0; # Off by default
236 $Oopt_FoldrBuildInline = ''; # was '-fdo-inline-foldr-build';
237 $Oopt_ShowSimplifierProgress = '';
238 } # end of setupOptFlags
240 # Assign defaults to these right away.
244 Things to do with C compilers/etc:
246 $CcRegd = $GHC_OPT_HILEV_ASM;
247 @CcBoth_flags = ('-S'); # flags for *any* C compilation
251 # those for all files,
252 # those only for .c files;
253 # those only for .hc files
255 @CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__');
256 @CcRegd_flags_c = ();
257 @CcRegd_flags_hc = ();
259 $As = ''; # "assembler" is normally GCC
262 $Lnkr = ''; # "linker" is normally GCC
265 # 'nm' is used for consistency checking (ToDo: mk-world-ify)
266 # ToDo: check the OS or something ("alpha" is surely not the crucial question)
267 $Nm = ($TargetPlatform =~ /^alpha-/) ? 'nm -B' : 'nm';
270 Warning packages that are controlled by -W and -Wall. The 'standard'
271 warnings that you get all the time are
273 -fwarn-overlapping-patterns
274 -fwarn-missing-methods
275 -fwarn-duplicate-exports
277 these are turned off by -Wnot.
280 @StandardWarnings = ('-fwarn-overlapping-patterns',
281 '-fwarn-missing-methods',
282 '-fwarn-duplicate-exports');
283 @MinusWOpts = (@StandardWarnings,
284 '-fwarn-incomplete-patterns',
285 '-fwarn-unused-names');
286 @MinusWallOpts = (@MinusWOpts,
287 '-fwarn-name-shadowing');
290 What options \tr{-user-setup-a} turn into (user-defined ``packages''
292 of options). Note that a particular user-setup implies a particular
293 Prelude ({\em including} its interface file(s)).
295 $BuildTag = ''; # default is sequential build w/ Appel-style GC
297 %BuildDescr = (# system ways begin
298 '', 'normal sequential',
302 '_mc', "$WAY_mc_NAME",
303 '_mr', "$WAY_mr_NAME",
304 '_mt', "$WAY_mt_NAME",
305 '_mp', "$WAY_mp_NAME",
306 '_mg', "$WAY_mg_NAME",
307 '_2s', "$WAY_2s_NAME",
308 '_1s', "$WAY_1s_NAME",
309 '_du', "$WAY_du_NAME",
327 '_B', "$WAY_B_NAME" );
329 # these are options that are "fed back" through the option processing loop
333 '_a', "$WAY_a_HC_OPTS",
334 '_b', "$WAY_b_HC_OPTS",
335 '_c', "$WAY_c_HC_OPTS",
336 '_d', "$WAY_d_HC_OPTS",
337 '_e', "$WAY_e_HC_OPTS",
338 '_f', "$WAY_f_HC_OPTS",
339 '_g', "$WAY_g_HC_OPTS",
340 '_h', "$WAY_h_HC_OPTS",
341 '_i', "$WAY_i_HC_OPTS",
342 '_j', "$WAY_j_HC_OPTS",
343 '_k', "$WAY_k_HC_OPTS",
344 '_l', "$WAY_l_HC_OPTS",
345 '_m', "$WAY_m_HC_OPTS",
346 '_n', "$WAY_n_HC_OPTS",
347 '_o', "$WAY_o_HC_OPTS",
348 '_A', "$WAY_A_HC_OPTS",
349 '_B', "$WAY_B_HC_OPTS",
352 '_p', "$WAY_p_HC_OPTS",
353 '_t', "$WAY_t_HC_OPTS",
354 '_u', "$WAY_u_HC_OPTS",
355 '_mc', "$WAY_mc_HC_OPTS",
356 '_mr', "$WAY_mr_HC_OPTS",
357 '_mt', "$WAY_mt_HC_OPTS",
358 '_mp', "$WAY_mp_HC_OPTS",
359 '_mg', "$WAY_mg_HC_OPTS",
360 '_2s', "$WAY_2s_HC_OPTS",
361 '_1s', "$WAY_1s_HC_OPTS",
362 '_du', "$WAY_B_HC_OPTS" );
366 Import/include directories (\tr{-I} options) are sufficiently weird to
367 require special handling.
370 @Import_dir = ('.'); #-i things
371 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
373 # where to look for interface files (system hi's, i.e., prelude and hslibs)
374 @SysImport_dir = ( $INSTALLING )
375 ? ( "$InstLibDirGhc/imports" )
376 : ( "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/required"
377 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/ghc"
378 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/glaExts"
379 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent" );
381 # We need to look in ghc/ and glaExts/ when searching for implicitly needed .hi files, but
382 # we should really *not* look there for explicitly imported modules.
384 $GhcVersionInfo = int($PROJECTVERSION * 100 + .5); # i.e., round (X.Y * 100)
385 $Haskell1Version = 4; # i.e., Haskell 1.4
388 @UserLibrary_dir= (); #-L things;...
389 @UserLibrary = (); #-l things asked for by the user
391 @SysLibrary_dir = ( ( $INSTALLING ) #-syslib things supplied by the system
393 : ( "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR"
394 , "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/gmp"
395 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR"
396 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/cbits"
399 @SysLibrary = (); # will be built up as we go along
401 $TopClosureFile # defaults to 1.2 one; will be mangled later
402 = ( $INSTALLING) ? "$InstLibDirGhc/TopClosureXXXX.o"
403 : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/main/TopClosureXXXX.o";
405 # make depend for Haskell
407 = ( $INSTALLING ) ? "$InstBinDirGhc/mkdependHS"
408 : "$TopPwd/$CURRENT_DIR/$GHC_UTILS_DIR/mkdependHS/mkdependHS";
410 @MkDependHS_flags = ();
412 # do_link flag should not be reset while rescanning the cmd-line.
414 $Specific_output_dir = ''; # set by -odir <dir>
415 $Specific_output_file = ''; # set by -o <file>; "-" for stdout
418 Function to initialise the per-compilation-unit globals that
419 are used to guide and control the invocation of the different phases.
422 sub initDriverGlobals {
424 # reset the following options:
425 # RTS flags to use while compiling
427 @HsP_flags = (); # these are the flags destined solely for
428 # the flex/yacc parser
433 The optimisations/etc to be done by the compiler are {\em normally}
434 expressed with a \tr{-O} (or \tr{-O2}) flag, or by its absence.
437 $OptLevel = 0; # no -O == 0; -O == 1; -O2 == 2; -Ofile == 3
438 $MinusO2ForC = 0; # set to 1 if -O2 should be given to C compiler
439 $StolenX86Regs = 4; # **HACK*** of the very worst sort
443 @CcBoth_flags = ('-S'); # flags for *any* C compilation
446 # GCC flags: those for all files, those only for .c files; those only for .hc files
447 @CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__');
448 @CcRegd_flags_c = ();
449 @CcRegd_flags_hc = ();
451 @Import_dir = ('.'); #-i things
452 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
457 We are given a list of files with various presumably-known suffixes
458 (unknown-suffix files go straight to the linker). For each file, we
459 begin by assuming that we'll run every phase over it. However: (1)
460 global flags (\tr{-c}, \tr{-S}, etc.) tell us not to run any phase
461 past a certain point; and (2) the file's suffix tells us what phase to
462 start with. Linking is weird and kept track of separately.
464 Here are the initial defaults applied to all files:
466 $Cpp_flag_set = 0; # (hack)
467 $Only_preprocess_C = 0; # pretty hackish
468 $Only_preprocess_hc = 0; # ditto
469 $Only_generate_deps = 0; # "
470 $PostprocessCcOutput = 0;
472 # native code-gen or via C?
473 $HaveNativeCodeGen = $GhcWithNativeCodeGen;
474 $HscOut = '-C='; # '-C=' ==> .hc output; '-S=' ==> .s output; '-N=' ==> neither
476 if $HaveNativeCodeGen && $TargetPlatform =~ /^(alpha|sparc)-/;
477 # TEMP: disable x86 if $HaveNativeCodeGen && $TargetPlatform =~ /^(i386|alpha|sparc)-/;
478 $ProduceHi = '-hifile=';
483 $CollectingGCstats = 0;
484 $CollectGhcTimings = 0;
485 $DEBUGging = ''; # -DDEBUG and all that it entails (um... not really)
486 $PROFing = ''; # set to p or e if profiling
487 $PROFgroup = ''; # set to group if an explicit -Ggroup specified
488 $PROFauto = ''; # set to relevant hsc flag if -auto or -auto-all
489 $PROFcaf = ''; # set to relevant hsc flag if -caf-all
490 $PROFignore_scc = ''; # set to relevant parser flag if explicit sccs ignored
491 $UNPROFscc_auto = ''; # set to relevant hsc flag if forcing auto sccs without profiling
492 $TICKYing = ''; # set to t if compiling for ticky-ticky profiling
493 $PARing = ''; # set to p if compiling for PAR
494 $CONCURing = ''; # set to c if compiling for CONCURRENT
495 $GRANing = ''; # set to g if compiling for GRAN
496 $StkChkByPageFaultOK = 1; # may be set to 0 (false) for some builds
497 $Specific_hi_file = ''; # set by -ohi <file>; "-" for stdout
498 $Specific_dump_file = ''; # set by -odump <file>; "-" for stdout
499 $Using_dump_file = 0;
501 $Osuffix = ''; # default: use the normal suffix for that kind of output
503 $HiSuffix_prelude = '';
504 $Do_recomp_chkr = 0; # don't use the recompilatio checker unless asked
505 $Do_cc = -1; # a MAGIC indeterminate value; will be set to 1 or 0.
508 $Keep_hc_file_too = 0;
509 $Keep_s_file_too = 0;
510 $UseGhcInternals = 0; # if 1, may use GHC* modules
513 $Dump_parser_output = 0;
515 $Dump_asm_splitting_info = 0;
516 $NoImplicitPrelude = 0;
519 } # end of initDriverGlobals (Sigh)
521 # we split the argv passed to the driver into three:
526 # and files to be linked...
532 # cmd line options prefixing the unit we're compiling
537 We inject consistency-checking information into \tr{.hc} files (both
538 when created by the Haskell compiler and when compiled by the C
539 compiler), so that we can check that an executable is made from
540 consistently-built pieces. (The check is normally done just after
541 linking.) The checking is done by introducing/munging
542 \tr{what(1)}-style strings. Anyway, here are the relevant global
543 variables and their defaults:
545 $LinkChk = 1; # set to 0 if the link check should *not* be done
547 # major & minor version numbers; major numbers must always agree;
548 # minor disagreements yield a warning.
549 $HsC_major_version = 33;
550 $HsC_minor_version = 0;
551 $Cc_major_version = 36;
552 $Cc_minor_version = 1;
554 # options: these must always agree
555 $HsC_consist_options = ''; # we record, in this order:
556 # Build tag; debugging?
557 $Cc_consist_options = ''; # we record, in this order:
558 # Build tag; debugging?
561 %************************************************************************
563 \section[Driver-parse-argv]{Munge the command-line options}
565 %************************************************************************
567 Now slurp through the arguments.
570 &initDriverGlobals();
571 &splitCmdLine(@ARGV);
572 # Run through the cmd-line first time.
573 &processArgs(@Cmd_opts);
575 # Check to see if driver is only in the business
576 # to generate dependencies
577 if ( $Status == 0 && $Only_generate_deps ) {
579 push (@MkDependHS_flags, "-o$Osuffix") if $Osuffix;
580 push (@MkDependHS_flags, "-s$BuildTag") if $BuildTag;
581 push (@MkDependHS_flags, "-D__HASKELL1__=$Haskell1Version");
582 # They're not (currently) needed, but we need to quote any -#include options
583 foreach (@Cmd_opts) {
584 s/-#include.*$/'$&'/g;
586 local($to_do) = "$MkDependHS @MkDependHS_flags -- @Cmd_opts -- @Input_file" ;
587 &run_something($to_do, 'Haskell dependencies');
591 # if there are several input files,
592 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
593 # (except if linking, of course)
595 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
596 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
597 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
598 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
599 print STDERR "\tPerhaps the -odir option will do what you want.\n";
604 # check for various pathological -o and -odir combinations...
605 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
606 if ($Specific_output_file eq '-') {
607 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
609 } else { # amalgamate...
610 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
611 # ToDo: check we haven't got a junk name now...
612 $Specific_output_dir = ''; # reset
616 # crash and burn if there were errors
618 print STDERR $ShortUsage;
623 %************************************************************************
625 \section[Driver-post-argv-mangling]{Setup after reading options}
627 %************************************************************************
629 %************************************************************************
631 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
633 %************************************************************************
635 We come now to the default ``wads of options'' that are turned on by
636 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
637 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
640 The user can also specify his/her own list of options in a file; in
641 that case, the work is already done (see stuff about @minusO3@,
644 GHC allows very precise control of what happens during a compilation.
645 Core-to-Core and STG-to-STG passes can be run in any order, as many
646 times as you like. Individual transformations can be turned on or
649 Sadly, however, there are some interdependencies \& Things You Must
650 Not Do. Here is the list.
654 \item[\tr{-fspecialise}:]
655 The specialiser must have dependency-analysed input; but if you run
656 the simplifier to do this, you must not let it toss away unused
657 bindings! (The typechecker conveys some specialisation info via
658 ``unused'' bindings...)
660 \item[\tr{-ffloat-inwards}:]
661 Floating inwards should be done before strictness analysis, because
662 the latter will give better results.
664 \item[\tr{-fstatic-args}:]
665 The static-arguments-transformation pass {\em must} have the
666 simplifier run right after it.
668 \item[\tr{-fcalc-inlinings[12]}:]
669 Not required, but there may be slight gains by re-simplifying after
670 this is done. (You could then \tr{-fcalc-inlinings} again, just for
673 \item[\tr{-ffull-laziness}:]
674 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
675 that's run. (Um, well, howzabout the simplifier just once more...)
680 \item[\tr{-fupdate-analysis}:]
681 It really really wants to be the last STG-to-STG pass that is run.
686 sub setupOptimiseFlags {
692 '-ffloat-lets-exposing-whnf',
693 '-ffloat-primops-ok',
696 # '-fdo-lambda-eta-expansion', # too complicated
698 # '-flet-to-case', # no strictness analysis, so...
699 $Oopt_PedanticBottoms,
700 # $Oopt_MonadEtaExpansion, # no thanks
702 # These two work fine, if you really want no simplification at all,
703 # for bizarre test reasons. But you get really terrible code if you use them,
704 # for example: let x = e in x
705 # with dozens of redundant thunks etc. So I'm leaving them out.
707 # '-fsimpl-uf-use-threshold0',
708 # '-fessential-unfoldings-only',
710 $Oopt_UnfoldingUseThreshold,
711 $Oopt_MaxSimplifierIterations,
712 $Oopt_ShowSimplifierProgress,
715 # '-ffull-laziness', # removed 95/04 WDP following Andr\'e's lead
717 $Oopt_FinalStgProfilingMassage
720 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
722 '-fdo-eta-reduction',
724 # initial simplify: mk specialiser happy: minimum effort please
728 '-fkeep-spec-pragma-ids', # required before specialisation
730 # I don't understand why we want -fessential-unfoldings-only here
731 # If we have it, the following nasty thing happens:
735 # where "*" means exported.
736 # In the essential-unfoldings pass we still substitute f for g
737 # but we don't substitute E for f first. So we get
741 # The g=f will get reverse-substituted later, but it's untidy.
743 # '-fessential-unfoldings-only',
744 # '-fsimpl-uf-use-threshold0',
746 '-fmax-simplifier-iterations1',
747 $Oopt_PedanticBottoms,
750 ($Oopt_DoSpecialise) ? (
751 '-fspecialise-overloaded',
752 $Oopt_SpecialiseUnboxed,
756 '-fsimplify', # need dependency anal after specialiser ...
757 '[', # need tossing before calc-inlinings ...
759 '-ffloat-lets-exposing-whnf',
760 '-ffloat-primops-ok',
764 # '-fdo-eta-reduction',
765 '-fdo-lambda-eta-expansion',
767 $Oopt_PedanticBottoms,
768 $Oopt_MonadEtaExpansion,
769 $Oopt_UnfoldingUseThreshold,
770 $Oopt_MaxSimplifierIterations,
771 $Oopt_ShowSimplifierProgress,
774 #LATER: '-fcalc-inlinings1', -- pointless for 2.01
776 # ($Oopt_FoldrBuildWW) ? (
777 # '-ffoldr-build-ww-anal',
778 # '-ffoldr-build-worker-wrapper',
782 # '-ffloat-lets-exposing-whnf',
783 # '-ffloat-primops-ok',
787 # '-fdo-eta-reduction',
788 # '-fdo-lambda-eta-expansion',
790 # $Oopt_PedanticBottoms,
791 # $Oopt_MonadEtaExpansion,
792 # $Oopt_UnfoldingUseThreshold,
793 # $Oopt_MaxSimplifierIterations,
794 # $Oopt_ShowSimplifierProgress,
798 # this pass-ordering sequence was agreed by Simon and Andr\'e
799 # (WDP 94/07, 94/11).
802 ($Oopt_FoldrBuild) ? (
803 '-ffoldr-build-on', # desugar list comprehensions for foldr/build
807 '-fignore-inline-pragma', # **** NB!
808 '-fdo-foldr-build', # NB
810 '-ffloat-lets-exposing-whnf',
811 '-ffloat-primops-ok',
815 # '-fdo-eta-reduction',
816 '-fdo-lambda-eta-expansion', # After full laziness
818 $Oopt_PedanticBottoms,
819 $Oopt_MonadEtaExpansion,
820 $Oopt_UnfoldingUseThreshold,
821 $Oopt_MaxSimplifierIterations,
822 $Oopt_ShowSimplifierProgress,
831 '-ffloat-lets-exposing-whnf',
832 '-ffloat-primops-ok',
836 '-fdo-eta-reduction',
837 '-fdo-lambda-eta-expansion',
839 ($Oopt_FoldrBuildInline),
840 # you need to inline foldr and build
841 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
842 # but do reductions if you see them!
843 $Oopt_PedanticBottoms,
844 $Oopt_MonadEtaExpansion,
845 $Oopt_UnfoldingUseThreshold,
846 $Oopt_MaxSimplifierIterations,
847 $Oopt_ShowSimplifierProgress,
855 '-ffloat-lets-exposing-whnf',
856 '-ffloat-primops-ok',
860 # '-fdo-eta-reduction',
861 '-fdo-lambda-eta-expansion',
863 '-flet-to-case', # Aha! Only done after strictness analysis
864 $Oopt_PedanticBottoms,
865 $Oopt_MonadEtaExpansion,
866 $Oopt_UnfoldingUseThreshold,
867 $Oopt_MaxSimplifierIterations,
868 $Oopt_ShowSimplifierProgress,
873 # Case-liberation for -O2. This should be after
874 # strictness analysis and the simplification which follows it.
878 # : "-fliberate-case -fsimplify [ $Oopt_FB_Support -ffloat-lets-exposing-whnf -ffloat-primops-ok -fcase-of-case -fdo-case-elim -fcase-merge -fdo-eta-reduction -fdo-lambda-eta-expansion -freuse-con -flet-to-case $Oopt_PedanticBottoms $Oopt_MonadEtaExpansion $Oopt_UnfoldingUseThreshold $Oopt_MaxSimplifierIterations $Oopt_ShowSimplifierProgress ]" ),
880 # Final clean-up simplification:
885 '-ffloat-lets-exposing-whnf',
886 '-ffloat-primops-ok',
890 # '-fdo-eta-reduction',
891 '-fdo-lambda-eta-expansion',
894 '-fignore-inline-pragma', # **** NB!
895 $Oopt_FoldrBuildInline,
896 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
897 # but still do reductions if you see them!
898 $Oopt_PedanticBottoms,
899 $Oopt_MonadEtaExpansion,
900 $Oopt_UnfoldingUseThreshold,
901 $Oopt_MaxSimplifierIterations,
902 $Oopt_ShowSimplifierProgress,
907 #LATER: '-fcalc-inlinings2', -- pointless for 2.01
912 $Oopt_FinalStgProfilingMassage,
918 # SPECIAL FLAGS for -O2
926 Sort out what we're going to do about optimising. First, the @hsc@
927 flags and regular @cc@ flags to worry about:
929 if ( $OptLevel <= 0 ) {
931 # for this level, we tell the parser -fignore-interface-pragmas
932 push(@HsC_flags, '-fignore-interface-pragmas');
933 # and tell the compiler not to produce them
934 push(@HsC_flags, '-fomit-interface-pragmas');
936 &add_Hsc_flags( @HsC_minusNoO_flags );
937 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
939 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
941 &add_Hsc_flags( @HsC_minusO_flags );
942 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
943 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
944 # but it *is* useful in compiling the garbage collectors (so said
945 # Patrick many moons ago...).
947 } else { # -Ofile, then...
949 &add_Hsc_flags( @HsC_minusO3_flags );
950 push(@HsC_flags, $Oopt_FinalStgProfilingMassage) if $Oopt_FinalStgProfilingMassage;
952 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
955 } # setupOptimiseFlags
959 %************************************************************************
961 \subsection{Check for consistency, etc.}
963 %************************************************************************
965 Sort out @$BuildTag@, @$PROFing@, @$CONCURing@, @$PARing@,
966 @$GRANing@, @$TICKYing@:
968 sub setupBuildFlags {
971 # PROFILING stuff after argv mangling:
973 # warn about any scc exprs found (in case scc used as identifier)
974 push(@HsP_flags, '-W');
976 # add -auto sccs even if not profiling !
977 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
980 push(@HsC_flags, $PROFauto) if $PROFauto;
981 push(@HsC_flags, $PROFcaf) if $PROFcaf;
982 #push(@HsC_flags, $PROFdict) if $PROFdict;
984 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
986 # Ignore user sccs when auto annotating, but warn when doing so.
987 $PROFignore_scc = '-W' if $PROFauto;
989 push(@HsP_flags, (($PROFignore_scc) ? $PROFignore_scc : '-S'));
991 if ( $SplitObjFiles ) {
992 # can't split with cost centres -- would need global and externs
993 print STDERR "$Pgm: WARNING: splitting objects when profiling will *BREAK* if any _scc_s are present!\n";
994 # (but it's fine if there aren't any _scc_s around...)
995 # $SplitObjFiles = 0; # unset
996 #not an error: for now: $Status++;
999 #if ( $BuildTag ne '' ) {
1000 # local($b) = $BuildDescr{$BuildTag};
1001 # if ($CONCURing eq 'c') { print STDERR "$Pgm: Can't mix $b with -concurrent.\n"; exit 1; }
1002 # if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
1003 # if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
1004 # if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
1006 # # ok to have a user-way profiling build
1007 # # eval the profiling opts ... but leave user-way BuildTag
1008 # if ($PROFing eq 'p') { &processArgs(split(' ', $SetupOpts{'_p'})); } # eval($EvaldSetupOpts{'_p'}); }
1010 if ( $PROFing eq 'p' ) {
1011 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
1012 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
1013 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
1014 $BuildTag = ($CONCURing eq 'c') ? '_mr' : '_p' ; # possibly "profiled concurrent"...
1016 } elsif ( $CONCURing eq 'c' ) {
1017 if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix -concurrent with -parallel.\n"; exit 1; }
1018 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -concurrent with -gransim.\n"; exit 1; }
1019 $BuildTag = ($TICKYing eq 't') ? '_mt' : '_mc' ; # possibly "ticky concurrent"...
1020 # "profiled concurrent" already acct'd for...
1022 } elsif ( $PARing eq 'p' ) {
1023 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
1024 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
1027 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
1028 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
1032 } elsif ( $GRANing eq 'g' ) {
1033 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
1036 } elsif ( $TICKYing eq 't' ) {
1042 After the sanity checks, add flags to the necessary parts of the driver pipeline:
1045 if ( $BuildTag ne '' ) { # something other than normal sequential...
1047 local($Tag) = "${BuildTag}";
1048 $Tag =~ s/_//; # move the underscore to the back
1050 $HscOut = '-C='; # must go via C
1051 &processArgs(split(' ', $SetupOpts{$BuildTag}));
1052 # eval($EvaldSetupOpts{$BuildTag});
1056 Decide what the consistency-checking options are in force for this run:
1059 $HsC_consist_options = "${BuildTag},${DEBUGging}";
1060 $Cc_consist_options = "${BuildTag},${DEBUGging}";
1063 # Funny place to put it, but why not.
1065 if ( $HiSuffix_prelude eq '' ) {
1066 local($Tag) = "${BuildTag}";
1068 $Tag = "${Tag}_" if $Tag ne '';
1069 $HiSuffix_prelude="${Tag}hi";
1071 #push(@HsC_flags, "-hisuf-prelude=.${HiSuffix_prelude}"); # use appropriate Prelude .hi files
1072 #push(@HsC_flags, "-hisuf=.${HiSuffix}");
1077 %************************************************************************
1079 \subsection{Add on machine-specific C-compiler flags}
1081 %************************************************************************
1083 Shove on magical machine-specific options. We use \tr{unshift} to
1084 stick them on the {\em front} of the arrays, so that ``later''
1085 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
1087 Note: a few ``always apply'' flags were set at the very beginning.
1092 if ($TargetPlatform =~ /^alpha-/) {
1093 # we know how to *mangle* asm for alpha
1094 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1095 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1096 unshift(@CcBoth_flags, ('-static'));
1098 } elsif ($TargetPlatform =~ /^hppa/) {
1099 # we know how to *mangle* asm for hppa
1100 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1101 unshift(@CcBoth_flags, ('-static'));
1103 # We don't put in '-mlong-calls', because it's only
1104 # needed for very big modules (sigh), and we don't want
1105 # to hobble ourselves further on all the other modules
1108 # [Dated comment (gcc-2.6.x?), -mlong-calls is no longer
1109 # a supported gcc HPPA flag]
1110 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
1111 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
1112 # (very nice, but too bad the HP /usr/include files don't agree.)
1114 } elsif ($TargetPlatform =~ /^i386-/) {
1115 # we know how to *mangle* asm for X86
1116 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1117 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK && $TargetPlatform !~ /nextstep/;
1118 # I do not know how to do STACK_CHECK_BY_PAGE_FAULT
1119 # on NeXTs (my fault, not theirs), so I don't.
1122 # -fno-defer-pop : basically the same game as for m68k
1124 # -fomit-frame-pointer : *must* ; because we're stealing
1125 # the fp (%ebp) for our register maps. *All* register
1126 # maps (in MachRegs.lh) must steal it.
1128 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1129 unshift(@CcRegd_flags, '-fomit-frame-pointer');
1130 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1132 } elsif ($TargetPlatform =~ /^m68k-/) {
1133 # we know how to *mangle* asm for m68k
1134 unshift (@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1135 unshift (@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK && $TargetPlatform !~ /nextstep/;
1136 # I do not know how to do STACK_CHECK_BY_PAGE_FAULT
1137 # on NeXTs (my fault, not theirs), so I don't.
1140 # -fno-defer-pop : for the .hc files, we want all the pushing/
1141 # popping of args to routines to be explicit; if we let things
1142 # be deferred 'til after an STGJUMP, imminent death is certain!
1144 # -fomit-frame-pointer : *don't*
1145 # It's better to have a6 completely tied up being a frame pointer
1146 # rather than let GCC pick random things to do with it.
1147 # (If we want to steal a6, then we would try to do things
1148 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1150 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1151 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1152 # maybe gives reg alloc a better time
1153 # also: -fno-defer-pop is not sufficiently well-behaved without it
1155 } elsif ($TargetPlatform =~ /^mips-/) {
1156 # we (hope to) know how to *mangle* asm for MIPSen
1157 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1158 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1159 unshift(@CcBoth_flags, ('-static'));
1161 } elsif ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1162 # we know how to *mangle* asm for PowerPC
1163 # :-( unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1164 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1165 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1166 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1167 } elsif ($TargetPlatform =~ /^sparc-/) {
1168 # we know how to *mangle* asm for SPARC
1169 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1170 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1173 } # end of setupMachOpts
1176 %************************************************************************
1178 \subsection{Set up for warnings}
1180 %************************************************************************
1182 Several warnings are turned on by default. These are supposed to be
1183 the 'I'm pretty sure you've made a mistake here' kind of warnings.
1184 The rest are turned on by the -W and -Wall options, or individually
1185 via their -fwarn and -fno-warn flags.
1188 sub setupWarningFlags {
1189 &add_Hsc_flags( @StandardWarnings );
1193 Same unshifting magic, but for special linker flags.
1195 The configure script determines whether the object file symbol tables
1196 have a leading underscore, and sets @LeadingUnderscore@ accordingly.
1197 (The driver script `sees' the setting of the @LeadingUnderscore@
1198 by having the Makefile prepend it).
1202 local($uscore) = ( ${LeadingUnderscore} eq 'YES' ) ? '_' : '';
1205 (($Ld_main) ? ( '-u', "${uscore}Main_" . $Ld_main . '_closure' ) : ()));
1207 ( '-u', "${uscore}PrelBase_Z91Z93_closure" # i.e., []
1208 ,'-u', "${uscore}PrelBase_IZh_static_info"
1209 ,'-u', "${uscore}PrelBase_CZh_static_info"
1210 ,'-u', "${uscore}PrelBase_False_inregs_info"
1211 ,'-u', "${uscore}PrelBase_True_inregs_info"
1212 ,'-u', "${uscore}DEBUG_REGS"
1214 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1215 # sometimes we have lots of toc entries...
1216 # unshift(@Ld_flags, ('-Xlinker -bbigtoc -Xlinker -bnoquiet'));
1217 unshift(@Ld_flags, ('-Xlinker -bbigtoc'));
1220 } # end of setupLinkOpts
1224 %************************************************************************
1226 \subsection{Set up include paths and system-library enslurpment}
1228 %************************************************************************
1230 Now that we know what garbage-collector, etc., are required, we can
1231 finalise our list of libraries to slurp through, and generally Get
1236 # default includes must be added AFTER option processing
1237 if ( ! $INSTALLING ) {
1238 push (@Include_dir, "$TopPwd/${CURRENT_DIR}/${GHC_INCLUDE_DIR}");
1240 push (@Include_dir, "$InstLibDirGhc/includes");
1241 push (@Include_dir, "$InstLibDirGhc/includes");
1243 } # end of setupIncPaths
1248 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1251 foreach $f (@SysLibrary) {
1252 next if $f =~ /_cbits/;
1253 $f .= $BuildTag if $f =~ /^-lHS/;
1256 # fiddle the TopClosure file name...
1257 $TopClosureFile =~ s/XXXX//;
1259 # Push library HSrts, plus boring clib bit
1260 push(@SysLibrary, "-lHSrts${BuildTag}");
1261 push(@SysLibrary, '-lHSclib');
1263 # RTS compiled with cygwin32, uses the WinMM API
1264 # to implement the itimers, since cygwin.dll does not
1265 # support it. Only reqd. for `ways' that use itimers.
1267 push(@SysLibrary, '-lwinmm') if $BuildTag ne '' && $TargetPlatform eq 'i386-unknown-cygwin32';
1269 # Push the pvm libraries
1270 if ($BuildTag eq '_mp') {
1271 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1272 push(@SysLibrary, "-L$pvmlib", '-lpvm3', '-lgpvm3');
1273 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1274 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1275 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1276 push(@SysLibrary, '-lsocket', '-lnsl');
1280 # Push the GNU multi-precision arith lib; and the math library
1281 push(@SysLibrary, '-lgmp');
1282 push(@SysLibrary, '-lm');
1285 %************************************************************************
1287 \subsection{Check that this system was built to do what we are asking}
1289 %************************************************************************
1291 Before continuing we check that the appropriate build is available.
1294 #die "$Pgm: no BuildAvail?? $BuildTag\n" if $BuildDescr{$BuildTag} eq '' ; # sanity
1296 if ( $BuildDescr{$BuildTag} eq '' ) {
1297 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1298 "' \"build\" is not available with your GHC setup.\n";
1299 print STDERR "(It was not configured for it at your site.)\n";
1300 print STDERR $ShortUsage;
1304 } # end of setupSyslibs
1308 %************************************************************************
1310 \subsection{Final miscellaneous setup bits before we start going}
1312 %************************************************************************
1314 Record largest specific heapsize, if any.
1316 sub setupHeapStackSize {
1317 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1318 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1319 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1320 push(@HsC_rts_flags, "-K$Specific_stk_size");
1324 If no input or link files seen, then we let 'em feed in stdin; this is
1325 mainly for debugging.
1329 if ($#Input_file < 0 && $#Link_file < 0) {
1330 @Input_file = ( '-' );
1332 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1333 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n" if -t;
1334 while (<STDIN>) { print INF $_; }
1335 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1340 Tell the world who we are, if they asked.
1342 print STDERR "${PROJECTNAME}, version ${PROJECTVERSION}, patchlevel ${PROJECTPATCHLEVEL}\n"
1346 %************************************************************************
1348 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1350 %************************************************************************
1352 Process the input files; don't continue with linking if there are
1353 problems (global variable @$Status@ non-zero).
1355 foreach $ifile (@Input_file) {
1356 &ProcessInputFile($ifile);
1359 if ( $Status > 0 ) { # don't link if there were errors...
1360 print STDERR $ShortUsage;
1365 # append last minute flags linker and consistency flags
1372 Link if appropriate.
1375 local($libdirs) = '';
1377 # glue them together:
1378 push(@UserLibrary_dir, @SysLibrary_dir);
1380 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1382 # for a linker, use an explicitly given one, or the going C compiler ...
1383 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1385 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1386 @Files_to_tidy = ($Specific_output_file ne '') ?
1387 $Specific_output_file :
1388 ( ($TargetPlatform eq 'i386-unknown-cygwin32') ? 'main.exe' : 'a.out');
1389 print STDERR "Output file not specified, defaulting to \"main.exe\"\n" if ($Specific_output_file eq '' && $TargetPlatform eq 'i386-unknown-cygwin32');
1391 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $TopClosureFile $libdirs @UserLibrary @SysLibrary";
1392 &run_something($to_do, 'Linker');
1394 # finally, check the consistency info in the binary
1395 local($executable) = $Files_to_tidy[0];
1396 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1399 # dynamically load consistency-chking code; then do it.
1400 require('ghc-consist.prl')
1401 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1403 &chk_consistency_info ( $executable );
1406 # if PVM parallel stuff, we do truly weird things.
1407 # Essentially: (1) move the executable over to where PVM expects
1408 # to find it. (2) create a script in place of the executable
1409 # which will cause the program to be run, via SysMan.
1410 if ( $PARing eq 'p' ) {
1411 local($pvm_executable) = $executable;
1412 local($pvm_executable_base);
1414 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1415 local($pwd) = `pwd`;
1417 $pwd =~ s/^\/tmp_mnt//;
1418 $pvm_executable = "$pwd/$pvm_executable";
1421 $pvm_executable =~ s|/|=|g; # make /s into =s
1422 $pvm_executable_base = $pvm_executable;
1424 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1425 . "/$pvm_executable";
1427 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1429 # OK, now create the magic script for "$executable"
1430 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1431 print EXEC <<EOSCRIPT1;
1432 eval 'exec perl -S \$0 \${1+"\$@"}'
1433 if \$running_under_some_shell;
1434 # =!=!=!=!=!=!=!=!=!=!=!
1435 # This script is automatically generated: DO NOT EDIT!!!
1436 # Generated by Glasgow Haskell, version ${PROJECTVERSION} ${PROJECTPATCHLEVEL}
1438 \$pvm_executable = '$pvm_executable';
1439 \$pvm_executable_base = '$pvm_executable_base';
1440 \$SysMan = '$SysMan';
1443 print EXEC <<\EOSCRIPT2;
1444 # first, some magical shortcuts to run "commands" on the binary
1446 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1448 system("$cmd $pvm_executable");
1452 # OK, really run it; process the args first
1453 $ENV{'PE'} = $pvm_executable_base;
1455 $nprocessors = 2; # the default
1459 # ToDo: handle --RTS
1460 args: while ($a = shift(@ARGV)) {
1461 if ( $a eq '+RTS' ) {
1463 } elsif ( $a eq '-RTS' ) {
1466 if ( $a eq '-d' && $in_RTS_args ) {
1468 } elsif ( $a =~ /^-N(\d+)/ && $in_RTS_args ) {
1471 push(@nonPVM_args, $a);
1475 local($return_val) = 0;
1476 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
1478 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
1481 close(EXEC) || die "Failed closing $executable\n";
1482 chmod 0755, $executable;
1486 # that... that's all, folks!
1488 exit $Status; # will still be 0 if all went well
1491 %************************************************************************
1493 \section[Driver-do-one-file]{How to process a single input file}
1495 %************************************************************************
1498 sub ProcessInputFile {
1499 local($ifile) = @_; # input file name
1500 local($ifile_root); # root of or basename of input file
1501 local($ofile_target); # ultimate output file we hope to produce
1502 # from input file (need to know for recomp
1503 # checking purposes)
1504 local($hifile_target);# ditto (but .hi file)
1507 Handle the weirdity of input from stdin.
1509 if ($ifile ne '-') {
1510 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1511 $ofile_target = # may be reset later...
1512 ($Specific_output_file ne '' && ! $Do_lnkr)
1513 ? $Specific_output_file
1514 : &odir_ify($ifile_root, 'o');
1515 $hifile_target= ($Specific_hi_file ne '')
1517 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1518 # NB: may change if $ifile_root isn't module name (??)
1520 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1521 $ifile_root = '_stdin';
1522 $ofile_target = '_stdout'; # gratuitous?
1523 $hifile_target= '_stdout'; # ditto?
1527 We need to decide what phases of the compilation system we will run
1528 over this file. The defaults are the ones established when processing
1529 flags. (That established what the last phase run for all files is.)
1531 We do the pre-recompilation-checker phases here; the rest later.
1535 Look at the suffix and decide what initial phases of compilation may
1536 be dropped off for this file. Also the rather boring business of
1537 which files are coming-in/going-out.
1539 Again, we'll do the post-recompilation-checker parts of this later.
1541 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1542 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1545 # names of the files to stuff between phases
1546 # defaults are temporaries
1547 local($in_lit2pgm) = $ifile;
1548 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1549 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1550 local($hsc_hi) = "$Tmp_prefix.hi";
1551 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1552 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1553 local($as_out) = $ofile_target;
1555 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
1557 # OK, let's strip off some literate junk..
1559 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
1561 $lit2pgm_hscpp = $ifile;
1567 # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas
1568 &check_for_source_options($lit2pgm_hscpp,$ifile);
1570 # Options found in the source file take a back seat, i.e., we scan
1571 # them first. Only process the command line again if source file
1572 # contained anything of interest *or* there's more than one
1573 # input file (we have to reset the options).
1575 if ( $#Input_file >= 0 || $#File_options >= 0) {
1576 #@File_options = (@File_options, @Cmd_opts);
1578 # Now process the command line
1579 &initDriverGlobals();
1580 &processArgs((@File_options,@Cmd_opts));
1581 print STDERR "\nEffective command line: " .
1582 join(' ',(@File_options,@Cmd_opts)) . "\n" if $Verbose;
1585 # Having got the effective command line scanned, set up
1586 # the various options in prep for some real work.
1588 # check the sanity of the BuildTag we're about to use,
1589 # and if needs be, add some more flags and setup to
1590 # the different phases.
1593 &setupOptimiseFlags();
1596 &setupWarningFlags();
1597 &setupHeapStackSize();
1600 # These two variables need to be set after the
1601 # command-line has been processed and the build options
1602 # have be seen set up. This is because command-line options
1603 # can control whether to compile vias C or not.
1605 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1607 : ( ($HscOut eq '-C=') ? 1 : 0 );
1608 local($do_as) = $Do_as;
1609 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1611 if ($Only_preprocess_hc) { # stop after having run $Cc -E
1614 if ($Only_preprocess_C) { # stop after having run $hscpp
1615 $do_hsc=0; $do_cc = 0; $do_as=0;
1616 } elsif ($ifile =~ /.lhs$/ || $ifile =~ /.hs$/ ) {
1618 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
1619 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1621 } elsif ($ifile =~ /\.c$/) {
1622 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1623 $hsc_out = $ifile; $is_hc_file = 0;
1624 } elsif ($ifile =~ /\.s$/) {
1625 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
1627 } else { # don't know what it is, but nothing to do herein...
1628 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
1631 # hack to avoid running hscpp
1632 $HsCpp = $Cat if ! $Cpp_flag_set;
1634 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) if $do_hscpp;
1638 We now think about whether to run hsc/cc or not (when hsc produces .s
1639 stuff, it effectively takes the place of both phases).
1641 To get the output file name right: for each phase that we are {\em
1642 not} going to run, set its input (i.e., the output of its preceding
1643 phase) to @"$ifile_root.<suffix>"@.
1646 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
1649 # Warning issued if -keep-hc-file-too is used without
1650 # -fvia-C (or the equivalent)
1652 if ( $HscOut ne '-C=' && $Keep_hc_file_too ) {
1653 print STDERR "$Pgm: warning: Native code generator to be used, -keep-hc-file-too will be ignored\n";
1656 if (! $do_cc && ! $do_as) { # stopping after hsc
1657 $hsc_out = ($Specific_output_file ne '')
1658 ? $Specific_output_file
1659 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
1661 $ofile_target = $hsc_out; # reset
1664 if (! $do_as) { # stopping after gcc (or hsc)
1665 $cc_as = ($Specific_output_file ne '')
1666 ? $Specific_output_file
1667 : &odir_ify($ifile_root, ( $Only_preprocess_hc ) ? 'i' : 's');
1669 $ofile_target = $cc_as; # reset
1675 Now the Haskell compiler, C compiler, and assembler
1679 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
1680 $ofile_target, $hifile_target);
1684 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
1685 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root) if ! $Only_preprocess_hc;
1688 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
1690 # save a copy of the .s file..
1691 &saveIntermediate($ifile_root , "s" , $cc_as) if ($do_as && $Keep_s_file_too);
1692 &runAs($as_out, $ifile_root) if $do_as;
1695 Finally, decide what to queue up for linker input.
1697 # tentatively assume we will eventually produce linker input:
1698 push(@Link_file, &odir_ify($ifile_root, 'o'));
1700 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
1702 if ( $ifile !~ /\.(lhs|hs|hc|c|s)$/ && $ifile !~ /_hc$/ ) {
1703 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n"
1704 if $ifile !~ /\.a$/;
1706 # oops; we tentatively pushed the wrong thing; fix & do the right thing
1707 pop(@Link_file); push(@Link_file, $ifile);
1711 } # end of ProcessInputFile
1714 %************************************************************************
1716 \section[Driver-run-phases]{Routines to run the various phases}
1718 %************************************************************************
1722 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
1726 # Only add #line pragma if we're going to need it.
1727 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && " if ($Cpp_flag_set);
1728 $to_do .= "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
1730 push(@Files_to_tidy, $lit2pgm_hscpp );
1732 &run_something($to_do, 'literate pre-processor');
1738 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
1742 # Strictly speaking, echoing of the following line pragma is only required
1743 # on non-delit'ed input, as we've already added it during de-lit. However,
1744 # hscpp will then add a {-# LINE 1 "$lit2pgm_hsc" -} to the top of the file,
1745 # which is not very informative (but harmless). Hence, we uniformly have
1746 # {-# LINE 1 "$in_lit2pgm" #-} as the first line to all cpp'ed hsc input.
1748 $to_do = "echo '{-# LINE 1 \"$in_lit2pgm\" -}' > $hscpp_hsc && ";
1750 if ($HsCpp eq $Cat) {
1751 $to_do .= "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
1752 push(@Files_to_tidy, $hscpp_hsc );
1753 &run_something($to_do, 'Ineffective C pre-processor');
1755 local($includes) = '-I' . join(' -I',@Include_dir);
1756 $to_do .= "$HsCpp $Verbose $genSPECS_flag @HsCpp_flags -D__HASKELL1__=$Haskell1Version -D__GLASGOW_HASKELL__=$GhcVersionInfo $includes $lit2pgm_hscpp >> $hscpp_hsc";
1757 push(@Files_to_tidy, $hscpp_hsc );
1758 &run_something($to_do, 'Haskellised C pre-processor');
1761 if ( $Only_preprocess_C ) {
1762 $to_do = "$Cat $hscpp_hsc";
1763 &run_something($to_do, '');
1771 sub runHscAndProcessInterfaces {
1772 local($ifile, $hscpp_hsc, $ifile_root, $ofile_target, $hifile_target) = @_;
1774 # $ifile is the original input file
1775 # $hscpp_hsc post-unlit, post-cpp, etc., input file
1776 # $ifile_root input filename minus suffix
1777 # $ofile_target the output file that we ultimately hope to produce
1778 # $hifile_target the .hi file ... (ditto)
1780 local($source_unchanged) = 1;
1782 # Check if the source file is up to date relative to the target; in
1783 # that case we say "source is unchanged" and let the compiler bail out
1784 # early if the import usage information allows it.
1786 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
1787 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
1789 # The informational messages below are now conditional on -v being set -- SOF
1790 if ( $ofile_target ne "_stdin.s" && ! -f $ofile_target ) {
1791 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n" if $Verbose;
1792 $source_unchanged = 0;
1795 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
1796 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
1798 if ( $hifile_target ne "_stdout" && ! -f $hifile_target ) {
1799 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n" if $Verbose;
1800 $source_unchanged = 0;
1803 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
1804 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
1806 if ( $ofile_target ne "_stdin.s" && $i_mtime > $o_mtime) {
1807 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n" if $Verbose;
1808 $source_unchanged = 0;
1811 # So if source_unchanged is still "1", we pass on the good news to the compiler
1812 # The -recomp flag can disable this, forcing recompilation
1813 if ($Do_recomp_chkr && $source_unchanged) {
1814 push(@HsC_flags, '-fsource-unchanged');
1819 &runHsc($ifile_root, $hsc_out, $hsc_hi, $going_interactive);
1821 # See if it bailed out early, saying nothing needed doing.
1822 # We work this out by seeing if it created an output .hi file
1824 if ( ! -f $hsc_hi && $ProduceHi !~ /-nohifile=/ ) {
1825 # Doesn't exist, so we bailed out early.
1826 # Tell the C compiler and assembler not to run
1827 $do_cc = 0; $do_as = 0;
1829 # Update dependency info, touch both object file and
1830 # interface file, so that the following invariant is
1833 # a dependent module's interface file should after recompilation
1834 # checking be newer than the interface files of its imports.
1836 # That is, if module A's interface file changes, then module B
1837 # (which import from A) needs to be checked.
1838 # If A's change does not affect B, which causes the compiler to bail
1839 # out early, we still need to touch the interface file of B. The reason
1840 # for this is that B may export A's interface.
1842 &run_something("touch $ofile_target",
1843 "Touch $ofile_target, to propagate dependencies") if $HscOut ne '-N=';
1844 &run_something("touch $hifile_target",
1845 "Touch $hifile_target, to propagate dependencies") if $ProduceHi =~ /-nohifile=/ ;
1849 # Didn't bail out early (new .hi file) so we thunder on
1851 # If non-interactive, heave in the consistency info at the end
1852 # NB: pretty hackish (depends on how $output is set)
1853 if ( ! $going_interactive ) {
1854 if ( $HscOut eq '-C=' ) {
1855 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
1857 } elsif ( $HscOut eq '-S=' ) {
1858 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
1859 $consist =~ s/,/./g;
1860 $consist =~ s/\//./g;
1861 $consist =~ s/-/_/g;
1862 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
1863 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
1865 &run_something($to_do, 'Pin on Haskell consistency info');
1869 # Interface-handling is important enough to live off by itself
1870 if ( $ProduceHi !~ /-nohifile=/ ) { # If we've produced one, process it.
1871 require('ghc-iface.prl') || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
1872 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
1874 # if we're going to split up object files,
1875 # we inject split markers into the .hc file now
1876 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
1877 &inject_split_markers ( $hsc_out );
1880 # save a copy of the .hc file, even if we are carrying on...
1881 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
1882 &saveIntermediate($ifile_root , "hc" , $hsc_out);
1892 local($ifile_root, $hsc_out, $hsc_hi, $going_interactive) = @_;
1894 # prepend comma to HsP flags (so hsc can tell them apart...)
1895 foreach $a ( @HsP_flags ) { $a = ",$a" unless $a =~ /^,/; }
1897 &makeHiMap() unless $HiMapDone;
1898 #print STDERR "HiIncludes: $HiIncludeString\n";
1899 push(@HsC_flags, "-himap=$HiIncludeString");
1901 # here, we may produce .hc/.s and/or .hi files
1902 local($output) = '';
1903 #@Files_to_tidy = ();
1905 if ( $going_interactive ) {
1906 # don't need .hi unless going to show it on stdout:
1907 $ProduceHi = '-nohifile=' if ! $HiOnStdout;
1908 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
1911 # set up for producing output/.hi; note that flag twiddling
1912 # may mean that nothing will actually be produced:
1913 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out";
1914 push(@Files_to_tidy, $hsc_hi, $hsc_out );
1916 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
1917 if ( $CollectingGCstats ) {
1918 push(@HsC_rts_flags, "-S$ifile_root.stat");
1919 push(@Files_to_tidy, "$ifile_root.stat");
1922 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
1923 # emit nofibbish time/bytes-alloc stats to stderr;
1924 # see later .stat file post-processing
1925 print STDERR "warning: both -Rgc-stats and -Rghc-timing used, -Rghc-timing wins." if $CollectingGCstats;
1926 push(@HsC_rts_flags, "-s$Tmp_prefix.stat");
1927 push(@Files_to_tidy, "$Tmp_prefix.stat");
1931 if ($Specific_dump_file ne '') {
1932 $dump = "2>> $Specific_dump_file";
1933 $Using_dump_file = 1;
1937 $to_do = "$HsC @HsP_flags ,$hscpp_hsc $dump @HsC_flags $CoreLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
1938 &run_something($to_do, 'Haskell compiler');
1940 # finish business w/ nofibbish time/bytes-alloc stats
1941 &process_ghc_timings() if $CollectGhcTimings;
1945 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
1946 of (module-name, pathname) pairs, one per line, separated by a space.
1949 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1953 # collect in %HiMap; write later; also used elsewhere in driver
1955 local($mod, $path, $d, $e);
1957 # reset the global variables:
1959 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1961 foreach $d ( @Import_dir ) {
1962 if ($HiIncludeString) {
1963 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix}";
1965 $HiIncludeString = "$d%.${HiSuffix}";
1970 foreach $d ( @SysImport_dir ) {
1971 if ($HiIncludeString) {
1972 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix_prelude}";
1974 $HiIncludeString = "${d}%.${HiSuffix_prelude}";
1983 %************************************************************************
1985 \section[Driver-misc-utils]{Miscellaneous utilities}
1987 %************************************************************************
1989 %************************************************************************
1991 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
1993 %************************************************************************
1997 local($ofile,$def_suffix) = @_;
1999 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
2003 local($orig_file, $def_suffix) = @_;
2004 if ($Specific_output_dir eq '') { # do nothing
2005 &osuf_ify($orig_file, $def_suffix);
2007 local ($orig_file_only);
2008 ($orig_file_only = $orig_file) =~ s|.*/||;
2009 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
2016 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
2018 local($includes) = '-I' . join(' -I', @Include_dir);
2021 local($c_flags) = "@CcBoth_flags";
2022 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2024 # "input" files to use that are not in some weird directory;
2025 # to help C compilers grok .hc files [ToDo: de-hackify]
2026 local($cc_help) = "ghc$$.c";
2027 local($cc_help_s) = "ghc$$.s";
2030 $s_output = ($is_hc_file || $TargetPlatform =~ /^(powerpc|rs6000|hppa|i386)/) ? $cc_as_o : $cc_as;
2031 $c_flags .= " @CcRegd_flags";
2032 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2034 # C compiler won't like the .hc extension. So we create
2035 # a tmp .c file which #include's the needful.
2036 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2037 if ( $is_hc_file ) {
2039 #ifdef __STG_GCC_REGS__
2040 # if ! (defined(MAIN_REG_MAP) || defined(MARK_REG_MAP) || defined(SCAN_REG_MAP) || defined(SCAV_REG_MAP) || defined(FLUSH_REG_MAP))
2041 # define MAIN_REG_MAP
2044 #include "stgdefs.h"
2046 # user may have asked for #includes to be injected...
2047 print TMP @CcInjects if $#CcInjects >= 0;
2049 # heave in the consistency info
2050 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2052 # and #include the real source
2053 print TMP "#include \"$hsc_out\"\n";
2054 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2056 # Don't redirect stderr into intermediate file if slamming output onto stdout (e.g., with -E)
2057 local($fuse_stderr) = "2>&1" if ! $Only_preprocess_hc;
2058 local($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 )";
2059 # note: __GLASGOW_HASKELL__ is pointedly *not* #defined at the C level.
2061 if ( $Only_preprocess_hc ) { # HACK ALERT!
2062 $to_do =~ s/ -S\b//g;
2064 push(@Files_to_tidy, $cc_help, $cc_help_s, $s_output );
2065 $PostprocessCcOutput = 1 if ! $Only_preprocess_hc; # hack, dear hack...
2066 &run_something($to_do, 'C compiler');
2067 $PostprocessCcOutput = 0;
2068 if ( $Only_preprocess_hc ) {
2069 system("$Cat $Tmp_prefix.ccout");
2071 unlink($cc_help, $cc_help_s);
2077 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2079 if ( $is_hc_file ) {
2080 # dynamically load assembler-fiddling code, which we are about to use:
2081 require('ghc-asm.prl')
2082 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2085 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2088 # post-process the assembler [.hc files only]
2089 &mangle_asm($cc_as_o, $cc_as);
2093 #OLD: local($target) = 'oops';
2094 #OLD: $target = '-alpha' if $TargetPlatform =~ /^alpha-/;
2095 #OLD: $target = '-hppa' if $TargetPlatform =~ /^hppa/;
2096 #OLD: $target = '-old-asm' if $TargetPlatform =~ /^i386-/;
2097 #OLD: $target = '-m68k' if $TargetPlatform =~ /^m68k-/;
2098 #OLD: $target = '-mips' if $TargetPlatform =~ /^mips-/;
2099 #OLD: $target = '' if $TargetPlatform =~ /^powerpc-/;
2100 #OLD: $target = '-solaris' if $TargetPlatform =~ /^sparc-sun-solaris2/;
2101 #OLD: $target = '-sparc' if $TargetPlatform =~ /^sparc-sun-sunos4/;
2103 #OLD: if ( $target ne '' ) {
2104 #OLD: require("ghc-asm$target.prl")
2105 #OLD: || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm$target.prl!\n");
2106 #OLD: &mangle_asm($cc_as_o, "$cc_as-2"); # the OLD one!
2107 #OLD: &run_something("$Cmp -s $cc_as-2 $cc_as || $Diff $cc_as-2 $cc_as 1>&2 || exit 0",
2108 #OLD: "Diff'ing old and new mangled .s files"); # NB: to stderr
2111 } elsif ($TargetPlatform =~ /^hppa/) {
2112 # minor mangling of non-threaded files for hp-pa only
2113 require('ghc-asm.prl')
2114 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2115 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2117 } elsif ($TargetPlatform =~ /^powerpc|^rs6000/) {
2118 # minor mangling of non-threaded files for powerpcs and rs6000s
2119 require('ghc-asm.prl')
2120 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-powerpc.prl!\n");
2121 &mini_mangle_asm_powerpc($cc_as_o, $cc_as);
2122 } elsif ($TargetPlatform =~ /^i386/) {
2123 # extremely-minor OFFENSIVE mangling of non-threaded just one file
2124 require('ghc-asm.prl')
2125 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2126 &mini_mangle_asm_i386($cc_as_o, $cc_as);
2129 # save a copy of the .s file, even if we are carrying on...
2130 #if ($do_as && $Keep_s_file_too) {
2131 # &saveIntermediate($ifile_root , "s" , $cc_as);
2138 local($as_out, $ifile_root) = @_;
2140 local($asmblr) = ( $As ) ? $As : $CcRegd;
2142 if ( ! $SplitObjFiles ) {
2143 local($to_do) = "$asmblr -o $as_out -c @As_flags $cc_as";
2144 push(@Files_to_tidy, $as_out );
2145 &run_something($to_do, 'Unix assembler');
2147 } else { # more complicated split-ification...
2149 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2151 # If -odir is used, great, just pin it in front of the
2152 # generated split file names. If it hasn't been set, we
2153 # snatch it from the ifile_root.
2157 if ( $Specific_output_dir eq '' ) {
2158 $Specific_output_dir = ${ifile_root};
2161 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2162 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2163 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2164 push(@Files_to_tidy, $split_out );
2166 &run_something($to_do, 'Unix assembler');
2172 %************************************************************************
2174 \subsection[Driver-run-something]{@run_something@: Run a phase}
2176 %************************************************************************
2180 local($str_to_do, $tidy_name) = @_;
2182 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2183 print STDERR "$str_to_do\n" if $Verbose;
2185 if ($Using_dump_file) {
2186 open(DUMP, ">> $Specific_dump_file")
2187 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2188 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2190 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2193 local($return_val) = 0;
2195 if ( length($str_to_do) > 4000) {
2196 # 4000 - on the random side, just like the *real* ARG_MAX
2199 # With some shells, command lines of this length may
2200 # very well cause trouble. To safeguard against this, we squirrel the
2201 # command into a file and exec that.
2202 local ($sh) = $ENV{'REAL_SHELL'};
2203 print STDERR "Backup plan A: saving cmd line in ${Tmp_prefix}.sh and executing that with $sh\n" if $Verbose;
2204 open (TEMP, "> ${Tmp_prefix}.sh") ||
2205 &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.sh'\n");
2206 print TEMP "$Time $str_to_do\n";
2208 &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.sh'\n");
2209 system("$sh $Tmp_prefix.sh");
2212 unlink "${Tmp_prefix}.sh";
2214 system("$Time $str_to_do");
2218 if ( $PostprocessCcOutput ) { # hack, continued
2219 open(CCOUT, "< $Tmp_prefix.ccout")
2220 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2222 next if /attribute directive ignored/;
2223 next if /call-clobbered/;
2224 next if /from .*COptRegs\.lh/;
2225 next if /from .*(stg|rts)defs\.h:/;
2226 next if /from ghc\d+.c:\d+:/;
2227 next if /from .*\.lc/;
2228 next if /from .*SMinternal\.l?h/;
2229 next if /ANSI C does not support \`long long\'/;
2230 next if /warning:.*was declared \`extern\' and later \`static\'/;
2231 next if /warning: assignment discards \`const\' from pointer target type/;
2232 next if /: At top level:$/;
2233 next if /: In function \`.*\':$/;
2234 next if /\`ghc_cc_ID\' defined but not used/;
2237 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2240 if ($return_val != 0) {
2241 if ($Using_dump_file) {
2242 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2245 &tidy_up_and_die($return_val, '');
2247 $Using_dump_file = 0;
2251 %************************************************************************
2253 \subsection[Driver-ghc-timing]{Emit nofibbish GHC timings}
2255 %************************************************************************
2257 NB: nearly the same as in @runstdtest@ script.
2260 sub process_ghc_timings {
2261 local($StatsFile) = "$Tmp_prefix.stat";
2262 local($SysSpecificTiming) = 'ghc';
2264 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2265 local($max_live) = 0;
2266 local($tot_live) = 0; # for calculating residency stuff
2267 local($tot_samples) = 0;
2270 if (! /Minor/ && /^\s*\d+\s+\d+\s+(\d+)\s+\d+\.\d+\%/ ) {
2271 $max_live = $1 if $max_live < $1;
2275 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2277 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2278 $MaxResidency = $1; $ResidencySamples = $2;
2281 $GCs = $1 if /^\s*([0-9,]+) garbage collections? performed/;
2283 # The presence of -? in the following pattern is only there to
2284 # accommodate 0.29 && <= 2.05 RTS'
2285 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*-?(\d+\.\d\d)s elapsed\)/ ) {
2286 $InitTime = $1; $InitElapsed = $2;
2287 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2288 $MutTime = $1; $MutElapsed = $2;
2289 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2290 $GcTime = $1; $GcElapsed = $2;
2293 close(STATS) || die "Failed when closing $StatsFile\n";
2294 if ( $tot_samples > 0 ) {
2295 $ResidencySamples = $tot_samples;
2296 $MaxResidency = $max_live;
2297 $AvgResidency = int ($tot_live / $tot_samples) ;
2300 # warn about what we didn't find
2301 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2302 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2303 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2304 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2305 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2306 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2307 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2308 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2310 # things we didn't necessarily expect to find
2311 $MaxResidency = 0 unless defined($MaxResidency);
2312 $AvgResidency = 0 unless defined($AvgResidency);
2313 $ResidencySamples = 0 unless defined($ResidencySamples);
2316 $BytesAlloc =~ s/,//g;
2317 $MaxResidency =~ s/,//g;
2319 $InitTime =~ s/,//g;
2320 $InitElapsed =~ s/,//g;
2322 $MutElapsed =~ s/,//g;
2324 $GcElapsed =~ s/,//g;
2326 # print out what we found
2327 print STDERR "<<$SysSpecificTiming: ",
2328 "$BytesAlloc bytes, $GCs GCs, $AvgResidency/$MaxResidency avg/max bytes residency ($ResidencySamples samples), $InitTime INIT ($InitElapsed elapsed), $MutTime MUT ($MutElapsed elapsed), $GcTime GC ($GcElapsed elapsed)",
2329 " :$SysSpecificTiming>>\n";
2336 %************************************************************************
2338 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2340 %************************************************************************
2344 local($to_do) = "\n$Rm $Tmp_prefix*";
2345 if ( $Tmp_prefix !~ /^\s*$/ ) {
2346 print STDERR "$to_do\n" if $Verbose;
2351 sub tidy_up_and_die {
2352 local($return_val, $msg) = @_;
2354 # delete any files to tidy
2355 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2356 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2360 exit (($return_val == 0) ? 0 : 1);
2364 %************************************************************************
2366 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2368 %************************************************************************
2370 Some command-line arguments take an argument, e.g.,
2371 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2372 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2373 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2375 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2376 gobble the second argument (and probably set the heapsize to something
2380 local(*Args, $option, $rest_of_arg) = @_;
2382 if ($rest_of_arg ne '') {
2383 return($rest_of_arg);
2384 } elsif ($#Args >= 0) {
2385 local($temp) = $Args[0]; shift(@Args);
2388 print STDERR "$Pgm: no argument following $option option\n";
2399 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2401 foreach $f ( @HsC_antiflags ) {
2402 return(0) if $flag eq $f;
2404 # foreach $f ( @HsC_flags ) {
2405 # return(0) if $flag eq $f;
2410 sub squashHscFlag { # pretty terrible
2414 foreach $f ( @HsC_flags ) {
2415 if ($flag eq $f) { $f = ''; }
2423 foreach $f ( @flags ) {
2424 push( @HsC_flags, $f ) if &isntAntiFlag($f);
2431 local($syslib) = @_;
2433 unshift(@SysImport_dir,
2434 ${INSTALLING} ? "$InstSysLibDir/$syslib/imports"
2435 : "$TopPwd/hslibs/$syslib/src");
2437 push(@SysLibrary_dir,
2438 ${INSTALLING} ? ("$InstSysLibDir")
2439 : ("$TopPwd/hslibs/$syslib",
2440 "$TopPwd/hslibs/$syslib/cbits"));
2442 push(@SysLibrary, "-lHS$syslib");
2443 push(@SysLibrary, "-lHS${syslib}_cbits")
2444 unless $syslib eq 'contrib'; #HACK! it has no cbits
2448 Source files may have {-# OPTIONS ... #-} pragmas at the top, containing
2449 command line options we want to append to collection of commands specified
2450 directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell
2451 file for any such pragmas:
2454 sub check_for_source_options {
2455 local($file,$ifile) = @_;
2456 local($comment_start,$comment_end);
2458 if ($ifile =~ /\.hc$/ ||
2461 $ifile =~ /_s$/ ) { # `Real' C intermediate
2462 $comment_start = "/\\*";
2463 $comment_end = "\\*/";
2464 } else { # Assume it is a file containing Haskell source
2465 $comment_start = "{-#";
2466 $comment_end = "#-}";
2469 open(FILE,$file) || return(1); # No big loss
2472 if ( /^${comment_start} OPTIONS (.*)${comment_end}$/ ) {
2473 # add the options found at the back of the command line.
2474 local(@entries) = split(/\s+/,$1);
2475 print STDERR "Found OPTIONS " . join(' ',@entries) . " in $file\n" if $Verbose;
2476 push(@File_options, @entries);
2478 elsif ( /^$/ ) { # ignore empty lines
2481 elsif ( /^#line.+$/ ) { # ignore comment lines (unused..ToDo: rm )
2484 elsif ( /^{-# LINE.+$/ ) { # ignore line pragmas
2487 else { # stop looking, something non-empty / not
2488 # ${comment_start} OPTIONS .. ${comment_end} encountered.
2489 close(FILE);return(0);
2498 We split the initial argv up into three arrays:
2504 the reason for doing so is to be able to deal
2505 with {-# OPTIONS #-} pragma in source files properly.
2511 arg: while($_ = $args[0]) {
2513 # sigh, we have to deal with these -option arg specially here.
2514 /^-(tmpdir|odir|ohi|o|isuf|osuf|hisuf|hisuf-prelude|odump|syslib)$/ &&
2515 do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; };
2516 /^--?./ && do { push(@Cmd_opts, $_); next arg; };
2518 if (/\.([^_]+_)?[oa]$/) {
2519 push(@Link_file, $_);
2521 push(@Input_file, $_);
2524 # input files must exist:
2526 print STDERR "$Pgm: input file doesn't exist: $_\n";
2534 When saving an intermediate file (.hc or .s) away, we
2535 have to prefix any OPTIONS found in the original source file.
2538 sub saveIntermediate {
2539 local ($final,$suffix,$tmp)= @_ ;
2542 # $final -- root of where to park ${final}.${suffix}
2543 # $tmp -- temporary file where hsc put the intermediate file.
2545 # Delete the old file
2546 $to_do = "$Rm ${final}.${suffix}"; &run_something($to_do, "Removing old .${suffix} file");
2548 if ( $#File_options >= 0 ) { # OPTIONS found in Haskell source unit
2549 # Add OPTION comment to the top of the generated .${suffix} file
2550 open(TEMP, "> ${final}.${suffix}") || &tidy_up_and_die(1,"Can't open ${final}.${suffix}\n");
2551 print TEMP "/* OPTIONS " . join(' ',@File_options) . " */\n";
2553 print STDERR "Prepending OPTIONS: " . join(' ',@File_options) . " to ${final}.${suffix}\n" if $Verbose;
2555 $to_do = "$Cat $tmp >> ${final}.${suffix}";
2556 &run_something($to_do, "Saving copy of .${suffix} file");
2563 Command-line processor
2569 # can't use getopt(s); what we want is too complicated
2571 arg: while($_ = $Args[0]) {
2574 #---------- help -------------------------------------------------------
2575 if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; }
2577 #-----------version ----------------------------------------------------
2578 /^--version$/ && do { print STDERR "${PROJECTNAME}, version ${PROJECTVERSION}, patchlevel ${PROJECTPATCHLEVEL}\n"; exit $Status; };
2580 #---------- verbosity and such -----------------------------------------
2581 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
2583 #---------- what phases are to be run ----------------------------------
2584 /^-(no-)?recomp/ && do { $Do_recomp_chkr = ($1 eq '') ? 1 : 0; next arg; };
2586 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
2587 # change the global default:
2588 # we won't run cat; we'll run the real thing
2590 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
2592 # stop after generating C
2594 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
2595 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
2597 # leave out actual C generation (debugging) [also turns off interface gen]
2599 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
2600 # _do_ generate an interface; usually used as: -noC -hi
2602 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
2603 # don't generate an interface (even if generating C)
2605 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
2606 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
2607 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
2608 /^-keep-hi-diffs$/ && do { $Keep_HiDiffs = 1; next arg; };
2610 # show/disable diffs if the interface file changes
2612 /^-E$/ && do { push(@CcBoth_flags, '-E');
2613 $Only_preprocess_C = 1;
2614 $Do_as = 0; $Do_lnkr = 0; next arg; };
2615 # stop after preprocessing C
2616 /^-M$/ && do { $Only_generate_deps = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2617 # only generate dependency information.
2618 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
2619 # stop after generating assembler
2621 /^-c$/ && do { $Do_lnkr = 0; next arg; };
2622 # stop after generating .o files
2624 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
2625 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
2626 # don't do consistency-checking after a link
2628 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', '');
2629 $Tmp_prefix = "$Tmp_prefix/ghc$$";
2630 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
2632 # use an alternate directory for temp files
2634 #---------- redirect output --------------------------------------------
2636 # -o <file>; applies to the last phase, whatever it is
2637 # "-o -" sends it to stdout
2638 # if <file> has a directory component, that dir must already exist
2640 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', '');
2642 # Hack, of the worst sort: don't do validation of
2643 # odir argument if you're using -M (dependency generation).
2645 if ( ! $Only_generate_deps && ! -d $Specific_output_dir) {
2646 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
2651 /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', '');
2652 if ($Specific_output_file ne '-'
2653 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
2654 local($dir_part) = $1;
2655 if (! -d $dir_part) {
2656 print STDERR "$Pgm: no such directory: $dir_part\n";
2662 # NB: -isuf not documented yet (because it doesn't work yet)
2663 /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', '');
2664 if ($Isuffix =~ /\./ ) {
2665 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
2670 /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', '');
2671 if ($Osuffix =~ /\./ ) {
2672 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
2677 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
2678 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', '');
2679 if ($Specific_hi_file ne '-'
2680 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
2681 local($dir_part) = $1;
2682 if (! -d $dir_part) {
2683 print STDERR "$Pgm: no such directory: $dir_part\n";
2689 # The suffix to use when looking for interface files
2690 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', '');
2691 if ($HiSuffix =~ /\./ ) {
2692 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
2696 # ToDo: remove, not a `normal' user thing to do (should be automatic)
2697 /^-hisuf-prelude$/ && do { $HiSuffix_prelude = &grab_arg_arg(*Args,'-hisuf-prelude', '');
2698 if ($HiSuffix =~ /\./ ) {
2699 print STDERR "$Pgm: -hisuf-prelude suffix shouldn't contain a .\n";
2703 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', '');
2704 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
2705 local($dir_part) = $1;
2706 if (! -d $dir_part) {
2707 print STDERR "$Pgm: no such directory: $dir_part\n";
2713 #-------------- scc & Profiling Stuff ----------------------------------
2715 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
2718 # generate auto SCCs on top level bindings
2719 # -auto-all = all top level bindings
2720 # -auto = only top level exported bindings
2721 $PROFauto = ( /-all/ )
2722 ? '-fauto-sccs-on-all-toplevs'
2723 : '-fauto-sccs-on-exported-toplevs';
2726 /^-caf-all/ && do { # generate individual CAF SCC annotations
2727 $PROFcaf = '-fauto-sccs-on-individual-cafs';
2730 /^-ignore-scc$/ && do {
2731 # forces ignore of scc annotations even if profiling
2732 $PROFignore_scc = '-W';
2735 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
2738 /^-unprof-scc-auto/ && do {
2739 # generate auto SCCs on top level bindings when not profiling.
2740 # Used to measure optimisation effects of presence of sccs.
2741 $UNPROFscc_auto = ( /-all/ )
2742 ? '-fauto-sccs-on-all-toplevs'
2743 : '-fauto-sccs-on-exported-toplevs';
2746 #--------- ticky/concurrent/parallel -----------------------------------
2747 # we sort out the details a bit later on
2749 /^-concurrent$/ && do { $CONCURing = 'c'; next arg; }; # concurrent Haskell
2750 /^-gransim$/ && do { $GRANing = 'g'; next arg; }; # GranSim
2751 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
2752 /^-parallel$/ && do { $PARing = 'p'; next arg; }; # parallel Haskell
2754 #-------------- "user ways" --------------------------------------------
2756 (/^-user-setup-([a-oA-Z])$/ ) &&
2758 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
2760 local($stuff) = $UserSetupOpts{$BuildTag};
2761 local(@opts) = split(/\s+/, $stuff);
2763 # feed relevant ops into the arg-processing loop (if any)
2764 unshift(@Args, @opts) if $#opts >= 0;
2768 #---------- set search paths for libraries and things ------------------
2770 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
2771 # prepends the items to the list); -I is for including C .h files.
2773 /^-i$/ && do { @Import_dir = (); # import path cleared!
2774 @SysImport_dir = ();
2775 print STDERR "WARNING: import paths cleared by `-i'\n";
2778 /^-i(.*)/ && do { local(@new_items)
2779 = split( /:/, &grab_arg_arg(*Args,'-i', $1));
2780 unshift(@Import_dir, @new_items);
2783 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; };
2784 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; };
2785 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; };
2787 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1);
2788 print STDERR "$Pgm: no such system library (-syslib): $syslib\n",
2789 $Status++ unless $syslib =~ /^(hbc|ghc|posix|contrib)$/;
2792 # The posix library is a `special' in that it relies on
2793 # the ghc system library (packed strings). Wielding our
2794 # sledgehammer, the problem is solved by silently including
2795 # the ghc system library as well.
2796 # (ToDo: `nub' -syslib list)
2798 &add_syslib($syslib);
2799 if ( $syslib eq 'posix' ) {
2801 } elsif ( $syslib eq 'ghc' &&
2802 $TargetName =~ /-solaris2$/ ) {
2803 # needed for Berkeley socket/nwork stuff.
2804 push(@SysLibrary, '-lnsl');
2808 #=======================================================================
2809 # various flags that we can harmlessly send to one program or another
2810 # (we will later "reclaim" some of the compiler ones now sent to gcc)
2811 #=======================================================================
2813 #---------- this driver itself (ghc) -----------------------------------
2814 # these change what executable is run for each phase:
2815 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
2816 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
2817 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
2818 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
2819 /^-pgma(.*)$/ && do { $As = $1; next arg; };
2820 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
2821 /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; };
2823 #---------- the get-anything-through opts (all pgms) -------------------
2824 # these allow arbitrary option-strings to go to any phase:
2825 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
2826 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
2827 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
2828 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
2829 /^-optcpp(.*)$/ && do { push(@Cpp_define, $1); $Only_preprocess_hc = ($1 eq "-E"); next arg; };
2830 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
2831 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
2832 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
2833 /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; };
2835 #---------- Haskell C pre-processor (hscpp) ----------------------------
2836 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; };
2837 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; };
2839 /^-genSPECS/ && do { $Cpp_flag_set = 1;
2840 $genSPECS_flag = $_;
2843 #---------- post-Haskell "assembler"------------------------------------
2844 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
2845 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
2847 #---------- Haskell compiler (hsc) -------------------------------------
2849 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
2850 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
2852 /^-fhaskell-1\.3$/ && do { next arg; }; # a no-op right now
2854 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
2856 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
2857 # don't do stack checking using page fault `trick'.
2859 /^-fstack-check$/ && do { $StkChkByPageFaultOK = 0; next arg; };
2861 # have the compiler proper generate concurrent code,
2862 # really only used when you want to configure your own
2863 # special user compilation way. (Use -concurrent when
2864 # compiling `Concurrent Haskell' programs).
2866 # (ditto for -fgransim, fscc-profiling and -fticky-ticky)
2868 /^-fconcurrent$/ && do { push(@HsC_flags,$_); next arg; };
2869 /^-fscc-profiling$/ && do { push(@HsC_flags,$_); next arg; };
2870 /^-fticky-ticky$/ && do { push(@HsC_flags,$_); next arg; };
2871 /^-fgransim$/ && do { push(@HsC_flags,$_); next arg; };
2873 /^-split-objs/ && do {
2874 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|rs6000|sparc)-/ ) {
2876 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
2881 push(@HsC_flags, "-fglobalise-toplev-names");
2882 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
2884 require('ghc-split.prl')
2885 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
2890 && do { push(@HsC_flags, $_);
2891 push(@HsP_flags, '-N');
2893 # push(@HsC_flags, '-fshow-import-specs');
2897 /^-fspeciali[sz]e-unboxed$/
2898 && do { $Oopt_DoSpecialise = '-fspecialise';
2899 $Oopt_SpecialiseUnboxed = '-fspecialise-unboxed';
2902 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
2903 /^-fno-speciali[sz]e$/
2904 && do { $Oopt_DoSpecialise = ''; next arg; };
2907 # Now the foldr/build options, which are *on* by default (for -O).
2910 && do { $Oopt_FoldrBuild = 1;
2911 $Oopt_FB_Support = '-fdo-arity-expand';
2915 /^-fno-foldr-build$/
2916 && do { $Oopt_FoldrBuild = 0;
2917 $Oopt_FB_Support = '';
2920 /^-fno-foldr-build-rule$/
2921 && do { $Oopt_FoldrBuild = 0;
2924 /^-fno-enable-tech$/
2925 && do { $Oopt_FB_Support = '';
2928 /^-fno-snapback-to-append$/
2929 && do { $Oopt_FoldrBuildInline .= ' -fdo-not-fold-back-append ';
2932 # --------------- Renamer -------------
2935 /^-fno-prune-tydecls$/ && do { push(@HsC_flags, $_); next arg; };
2936 /^-fno-prune-instdecls$/ && do { push(@HsC_flags, $_); next arg; };
2940 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
2941 /^-fvia-[cC]$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
2945 /^(-funfolding-use-threshold)(.*)$/
2946 && do { $Oopt_UnfoldingUseThreshold = $1 . &grab_arg_arg(*Args,$1, $2);
2949 /^(-fmax-simplifier-iterations)(.*)$/
2950 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2);
2952 /^(-fshow-simplifier-progress)/
2953 && do { $Oopt_ShowSimplifierProgress = $1;
2956 /^-fno-pedantic-bottoms$/
2957 && do { $Oopt_PedanticBottoms = ''; next arg; };
2959 /^-fdo-monad-eta-expansion$/
2960 && do { $Oopt_MonadEtaExpansion = $_; next arg; };
2962 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
2963 && do { push(@HsC_flags, $_); next arg; };
2965 /^(-freturn-in-regs-threshold)(.*)$/
2966 && do { local($what) = $1;
2967 local($num) = &grab_arg_arg(*Args,$what, $2);
2968 if ($num < 2 || $num > 8) {
2969 die "Bad experimental flag: $_\n";
2971 $HscOut = '-C='; # force using C compiler
2972 push(@HsC_flags, "$what$num");
2973 push(@CcRegd_flags, "-D__STG_REGS_AVAIL__=$num");
2977 # --------------- Warnings etc. ------
2979 /^-fshow-import-specs/
2980 && do { push(@HsC_flags, $_); next arg; };
2982 /^-fsignatures-required/
2983 && do { push(@HsC_flags, $_); next arg; };
2985 /^-fwarn-(.*)$/ && do { push(@HsC_flags, $_); next arg; };
2987 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
2988 &squashHscFlag("-f$1");
2991 /^-W$/ && do { push(@HsC_flags, @MinusWOpts); next arg; };
2992 /^-Wall$/ && do { push(@HsC_flags, @MinusWallOpts); next arg; };
2993 /^(-Wnot|w)$/ && do { foreach (@Hsc_flags) {
2994 /^-fwarn-(.*)$/ && do { $_=''; };
2996 push(@HsC_antiflags, @StandardWarnings);
2999 # --------------- platform specific flags (for gcc mostly) ----------------
3001 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes,
3002 # for 2.6.x..?, does not apply for 2.7.2
3004 unshift(@CcBoth_flags, ( $_ ));
3007 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
3008 && do { # for GCC for SPARCs
3009 unshift(@CcBoth_flags, ( $_ ));
3012 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
3013 $StolenX86Regs = $1;
3016 #*************** ... and lots of debugging ones (form: -d* )
3018 # -d(no-)core-lint is done this way so it is turn-off-able.
3019 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
3020 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
3021 # Ditto for STG lint
3022 /^-dstg-lint/ && do { $StgLint = '-dstg-lint'; next arg; };
3023 /^-dno-stg-lint/ && do { $StgLint = ''; next arg; };
3025 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
3026 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
3027 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
3028 /^-dshow-rn-stats/ && do { push(@HsC_flags, $_); next arg; };
3029 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
3030 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
3031 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
3032 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
3034 #*************** ... and now all these -R* ones for its runtime system...
3036 /^-Rscale-sizes?(.*)/ && do {
3037 $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1);
3040 /^(-H|-Rmax-heapsize)(.*)/ && do {
3041 local($heap_size) = &grab_arg_arg(*Args,$1, $2);
3042 if ($heap_size =~ /(\d+)[Kk]$/) {
3043 $heap_size = $1 * 1000;
3044 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
3045 $heap_size = $1 * 1000 * 1000;
3046 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
3047 $heap_size = $1 * 1000 * 1000 * 1000;
3049 if ($heap_size <= 0) {
3050 print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n";
3051 $Specific_heap_size = 0;
3053 # if several heap sizes given, take the largest...
3054 } elsif ($heap_size >= $Specific_heap_size) {
3055 $Specific_heap_size = $heap_size;
3057 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n";
3061 /^(-K|Rmax-(stk|stack)size)(.*)/ && do {
3063 local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3);
3064 if ($stk_size =~ /(\d+)[Kk]$/) {
3065 $stk_size = $1 * 1000;
3066 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
3067 $stk_size = $1 * 1000 * 1000;
3068 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
3069 $stk_size = $1 * 1000 * 1000 * 1000;
3071 if ($stk_size <= 0) {
3072 print STDERR "$Pgm: resetting stack-size to zero!!! $stk_size\n";
3073 $Specific_stk_size = 0;
3075 # if several stack sizes given, take the largest...
3076 } elsif ($stk_size >= $Specific_stk_size) {
3077 $Specific_stk_size = $stk_size;
3079 print STDERR "$Pgm: ignoring stack-size-setting option ($flag $stk_size)...not the largest seen\n";
3083 /^-Rgc-stats$/ && do { $CollectingGCstats++;
3084 # the two RTSs do this diff ways; we will try to compensate
3087 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
3089 #---------- C high-level assembler (gcc) -------------------------------
3090 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
3092 # -dgcc-lint is a useful way of making GCC very fussy.
3093 # From alan@spri.levels.unisa.edu.au (Alan Modra).
3094 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
3095 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
3096 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
3098 # inject "#include <wurble>" into the compiler's C output!
3100 /^-#include(.*)/ && do {
3101 local($to_include) = &grab_arg_arg(*Args,'-#include', $1);
3102 push(@CcInjects, "#include $to_include\n");
3105 #---------- Linker (gcc, really) ---------------------------------------
3107 /^-static$/ && do { push(@Ld_flags, $_); next arg; };
3109 #---------- mixed cc and linker magic ----------------------------------
3110 # this optimisation stuff is finally sorted out later on...
3112 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
3114 /^-O[1-2]?$/ && do {
3115 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
3116 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
3118 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
3121 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
3123 /^-Ofile(.*)/ && do {
3125 local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1);
3126 @HsC_minusO3_flags = ();
3128 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
3131 s/\#.*//; # death to comments
3132 s/[ \t]+//g; # death to whitespace
3133 next if /^$/; # ditto, blank lines
3134 s/([()*{}])/\\$1/g; # protect shell metacharacters
3136 push(@CcBoth_flags, $1);
3138 push(@HsC_minusO3_flags, $_);
3144 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
3145 # in the consistency info
3149 #---------- linking .a file --------------------------------------------
3151 /^-Main(.*)/ && do {
3152 # specifies main or mainPrimIO to be linked
3156 #---------- catch unrecognized flags -----------------------------------
3159 print STDERR "$Pgm: unrecognised option: $_\n";
3165 } # end of processArgs