2 % (c) The GRASP/AQUA Project, Glasgow University, 1992-1997
5 This is the driver script for the Glasgow Haskell compilation system.
6 It is written in \tr{perl}. The first section includes a long
7 ``usage'' message that describes how the driver is supposed to work.
9 %************************************************************************
11 \section[Driver-usage]{Usage message}
13 %************************************************************************
16 ($Pgm = $0) =~ s|.*/||;
17 $ShortUsage = "\nUsage: For basic information, try the `-help' option.\n";
18 $LongUsage = "\n" . <<EOUSAGE;
19 Use of the Glorious Haskell Compilation System driver:
21 $Pgm [command-line-options-and-input-files]
23 ------------------------------------------------------------------------
24 This driver ($Pgm) guides each input file through (some of the)
25 possible phases of a compilation:
27 - unlit: extract code from a "literate program"
28 - hscpp: run code through the C pre-processor (if -cpp flag given)
29 - hsc: run the Haskell compiler proper
30 - gcc: run the C compiler (if compiling via C)
31 - as: run the assembler
34 For each input file, the phase to START with is determined by the
36 - .lhs literate Haskell: unlit
37 - .hs illiterate Haskell: hsc
38 - .hc C from the Haskell compiler: gcc
39 - .c C not from the Haskell compiler: gcc
40 - .s assembly language: as
41 - other passed directly to the linker: ld
43 If no files are given on the command line, input is taken from
44 standard input, and processing is as for an .hs file. (All output is
45 to stdout or stderr, however).
47 The phase at which to STOP processing is determined by a command-line
49 -E stop after generating preprocessed, de-litted Haskell (used in conjunction with -cpp)
50 -C stop after generating C (.hc output)
51 -S stop after generating assembler (.s output)
52 -c stop after generating object files (.o output)
54 Other commonly-used options are:
56 -O An `optimising' package of compiler flags, for faster code
58 -prof Compile for cost-centre profiling
59 (add -auto for automagic cost-centres on top-level functions)
61 -fglasgow-exts Allow Glasgow extensions (unboxed types, etc.)
63 -H14m Increase compiler's heap size
65 -M Output the Makefile rules recording the
66 dependencies of a list of Haskell files.
67 (ghc driver script calls upon the help of a
68 compatible mkdependHS script to do the actual
71 The User's Guide has more information about GHC's *many* options.
73 Given the above, here are some TYPICAL invocations of $Pgm:
75 # compile a Haskell module to a .o file, optimising:
77 # link three .o files into an executable called "test":
78 % $Pgm -o test Foo.o Bar.o Baz.o
79 # compile a Haskell module to C (a .hc file), using a bigger heap:
80 % $Pgm -C -H16m Foo.hs
81 # compile Haskell-produced C (.hc) to assembly language:
83 ------------------------------------------------------------------------
87 %************************************************************************
89 \section[Driver-init]{Initialisation}
91 %************************************************************************
93 The driver script need to be told where to find these executables, so
94 in the course of building the driver `executable', make-variables holding
95 these are prepended to the de-litted version of this file. The variables are:
100 HOSTPLATFORM TARGETPLATFORM
102 ProjectName ProjectVersion ProjectVersionInt ProjectPatchLevel
106 bindir libdir libexecdir datadir
110 GHC_LIB_DIR GHC_RUNTIME_DIR GHC_UTILS_DIR GHC_INCLUDE_DIR
112 GHC_OPT_HILEV_ASM GhcWithNativeCodeGen
114 GHC_UNLIT GHC_HSCPP GHC_HSC GHC_SYSMAN
118 WAY_*_NAME WAY_*_HC_OPTS
124 Establish what executables to run for the various phases, what the
125 default options are for those phases, and other similar boring stuff.
128 select(STDERR); $| = 1; select(STDOUT); # no STDERR buffering, please.
130 $TargetPlatform = $TARGETPLATFORM;
132 $TopPwd = "${TOP_PWD}";
133 $InstBinDirGhc = "${bindir}";
134 $InstLibDirGhc = "${libdir}";
136 # Normally the same as InstLibDirGhc, but we accommodate
137 # for it being separate.
139 $InstLibExecDirGhc = "${libexecdir}";
140 $InstDataDirGhc = "${datadir}";
142 $Status = 0; # just used for exit() status
145 # set up signal handler
146 sub quit_upon_signal { &tidy_up_and_die(1, ''); }
147 $SIG{'INT'} = 'quit_upon_signal';
148 $SIG{'QUIT'} = 'quit_upon_signal';
150 # where to get "require"d .prl files at runtime (poor man's dynamic loading)
151 # (use LIB, not DATA, because we can't be sure of arch-independence)
152 @INC = ( ( $INSTALLING ) ? $InstLibDirGhc
153 : "$TopPwd/${CURRENT_DIR}" );
155 if ( $ENV{'TMPDIR'} ) { # where to make tmp file names
156 $Tmp_prefix = ($ENV{'TMPDIR'} . "/ghc$$");
158 print STDERR "TMPDIR has not been set to anything useful!\n" if (${TMPDIR} eq '');
159 $Tmp_prefix ="${TMPDIR}/ghc$$"; # TMPDIR set via Makefile when booting..
160 $ENV{'TMPDIR'} = ${TMPDIR}; # set the env var as well
163 # Some shells run into real trouble when command line and environment
164 # gets big (e.g., cmd lines of >4K to /bin/sh causes havoc on our
165 # Solaris-2.5.1 boxes - even though sysconf(_SC_ARG_MAX) reports 1M ...).
166 # To work around any such */bin/sh* problems, we will scribble such
167 # awfully long command lines into a temp file and exec that temp file
168 # with $(REAL_SHELL) (don't use the SHELL variable directly as this
169 # will normally get you the wrong thing when the driver is invoked
170 # from within `make'). If the REAL_SHELL variable isn't set, you'll
171 # get SHELL. This is all a terrible hack. (in case you hadn't reached
172 # the same conclusion by now :-)
176 if ( ! $ENV{'REAL_SHELL'} ) {
177 $ENV{'REAL_SHELL'} = $ENV{'SHELL'};
180 @Files_to_tidy = (); # files we nuke in the case of abnormal termination
182 $Unlit = ( $INSTALLING ) ? "$InstLibExecDirGhc/unlit"
183 : "$TopPwd/${CURRENT_DIR}/${GHC_UNLIT}";
187 $Diff = $CONTEXT_DIFF;
192 $HsCpp = # but this is re-set to "cat" (after options) if -cpp not seen
193 ( $INSTALLING ) ? "$InstLibExecDirGhc/hscpp"
194 : "$TopPwd/${CURRENT_DIR}/${GHC_HSCPP}";
197 $HsC = ( $INSTALLING ) ? "$InstLibExecDirGhc/hsc"
198 : "$TopPwd/${CURRENT_DIR}/${GHC_HSC}";
200 # For PVM fiends only
201 $SysMan = ( $INSTALLING ) ? "$InstLibExecDirGhc/SysMan"
202 : "$TopPwd/${CURRENT_DIR}/${GHC_SYSMAN}";
207 # HsC_rts_flags: if we want to talk to the LML runtime system
208 # NB: we don't use powers-of-2 sizes, because this may do
209 # terrible things to cache behavior.
211 $Specific_heap_size = 6 * 1000 * 1000;
212 $Specific_stk_size = 1000 * 1000;
213 $Scale_sizes_by = 1.0;
217 The variables set by @setupOptFlags@ represent parts of the
218 -O/-O2/etc ``templates,'' which are filled in later, using these.
219 These are the default values, which may be changed by user flags.
223 $Oopt_UnfoldingUseThreshold = '-fsimpl-uf-use-threshold3';
224 $Oopt_MaxSimplifierIterations = '-fmax-simplifier-iterations4';
225 $Oopt_PedanticBottoms = '-fpedantic-bottoms'; # ON by default
226 $Oopt_MonadEtaExpansion = '';
227 $Oopt_FinalStgProfilingMassage = '';
229 $Oopt_SpecialiseUnboxed = '';
230 $Oopt_DoSpecialise = '-fspecialise';
231 $Oopt_FoldrBuild = 0; # *Off* by default!
232 $Oopt_FB_Support = ''; # was '-fdo-arity-expand';
233 # $Oopt_FoldrBuildWW = 0; # Off by default
234 $Oopt_FoldrBuildInline = ''; # was '-fdo-inline-foldr-build';
235 $Oopt_ShowSimplifierProgress = '';
236 } # end of setupOptFlags
238 # Assign defaults to these right away.
242 Things to do with C compilers/etc:
244 $CcRegd = $GHC_OPT_HILEV_ASM;
245 @CcBoth_flags = ('-S'); # flags for *any* C compilation
249 # those for all files,
250 # those only for .c files;
251 # those only for .hc files
253 @CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__');
254 @CcRegd_flags_c = ();
255 @CcRegd_flags_hc = ();
257 $As = ''; # "assembler" is normally GCC
260 $Lnkr = ''; # "linker" is normally GCC
263 # 'nm' is used for consistency checking (ToDo: mk-world-ify)
264 # ToDo: check the OS or something ("alpha" is surely not the crucial question)
265 $Nm = ($TargetPlatform =~ /^alpha-/) ? 'nm -B' : 'nm';
268 Warning packages that are controlled by -W and -Wall. The 'standard'
269 warnings that you get all the time are
271 -fwarn-overlapping-patterns
272 -fwarn-missing-methods
273 -fwarn-duplicate-exports
275 these are turned off by -Wnot.
278 @StandardWarnings = ('-fwarn-overlapping-patterns',
279 '-fwarn-missing-methods',
280 '-fwarn-duplicate-exports');
281 @MinusWOpts = (@StandardWarnings,
282 '-fwarn-incomplete-patterns',
283 '-fwarn-unused-binds',
284 '-fwarn-unused-imports');
285 @MinusWallOpts = (@MinusWOpts,
286 '-fwarn-unused-matches',
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 syslibs)
374 @SysImport_dir = ( $INSTALLING )
375 ? ( "$InstLibDirGhc/imports/std" )
376 : ( "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std" );
378 # We need to look in ghc/ and glaExts/ when searching for implicitly needed .hi files, but
379 # we should really *not* look there for explicitly imported modules.
381 $GhcVersionInfo = $ProjectVersionInt;
382 $Haskell1Version = 4; # i.e., Haskell 1.4
385 @UserLibrary_dir= (); #-L things;...
386 @UserLibrary = (); #-l things asked for by the user
388 @SysLibrary_dir = ( ( $INSTALLING ) #-syslib things supplied by the system
390 : ( "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR"
391 , "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/gmp"
392 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std"
393 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std/cbits"
396 @SysLibrary = (); # will be built up as we go along
398 $TopClosureFile # defaults to 1.2 one; will be mangled later
399 = ( $INSTALLING) ? "$InstLibDirGhc/TopClosureXXXX.o"
400 : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/main/TopClosureXXXX.o";
402 # make depend for Haskell
404 = ( $INSTALLING ) ? "$InstBinDirGhc/mkdependHS"
405 : "$TopPwd/$CURRENT_DIR/$GHC_UTILS_DIR/mkdependHS/mkdependHS";
407 @MkDependHS_flags = ();
409 # do_link flag should not be reset while rescanning the cmd-line.
411 $Specific_output_dir = ''; # set by -odir <dir>
412 $Specific_output_file = ''; # set by -o <file>; "-" for stdout
415 Function to initialise the per-compilation-unit globals that
416 are used to guide and control the invocation of the different phases.
419 sub initDriverGlobals {
421 # reset the following options:
422 # RTS flags to use while compiling
424 @HsP_flags = (); # these are the flags destined solely for
425 # the flex/yacc parser
430 The optimisations/etc to be done by the compiler are {\em normally}
431 expressed with a \tr{-O} (or \tr{-O2}) flag, or by its absence.
434 $OptLevel = 0; # no -O == 0; -O == 1; -O2 == 2; -Ofile == 3
435 $MinusO2ForC = 0; # set to 1 if -O2 should be given to C compiler
436 $StolenX86Regs = 4; # **HACK*** of the very worst sort
440 @CcBoth_flags = ('-S'); # flags for *any* C compilation
443 # GCC flags: those for all files, those only for .c files; those only for .hc files
444 @CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__');
445 @CcRegd_flags_c = ();
446 @CcRegd_flags_hc = ();
448 @Import_dir = ('.'); #-i things
449 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
454 We are given a list of files with various presumably-known suffixes
455 (unknown-suffix files go straight to the linker). For each file, we
456 begin by assuming that we'll run every phase over it. However: (1)
457 global flags (\tr{-c}, \tr{-S}, etc.) tell us not to run any phase
458 past a certain point; and (2) the file's suffix tells us what phase to
459 start with. Linking is weird and kept track of separately.
461 Here are the initial defaults applied to all files:
463 $Cpp_flag_set = 0; # (hack)
464 $Only_preprocess_C = 0; # pretty hackish
465 $Only_preprocess_hc = 0; # ditto
466 $Only_generate_deps = 0; # "
467 $PostprocessCcOutput = 0;
469 # native code-gen or via C?
470 $HaveNativeCodeGen = $GhcWithNativeCodeGen;
471 $HscOut = '-C='; # '-C=' ==> .hc output; '-S=' ==> .s output; '-N=' ==> neither
473 if $HaveNativeCodeGen && $TargetPlatform =~ /^(alpha|sparc)-/;
474 # TEMP: disable x86 if $HaveNativeCodeGen && $TargetPlatform =~ /^(i386|alpha|sparc)-/;
475 $ProduceHi = '-hifile=';
481 $CollectingGCstats = 0;
482 $CollectGhcTimings = 0;
483 $DEBUGging = ''; # -DDEBUG and all that it entails (um... not really)
484 $PROFing = ''; # set to p or e if profiling
485 $PROFgroup = ''; # set to group if an explicit -Ggroup specified
486 $PROFauto = ''; # set to relevant hsc flag if -auto or -auto-all
487 $PROFcaf = ''; # set to relevant hsc flag if -caf-all
488 $PROFignore_scc = ''; # set to relevant parser flag if explicit sccs ignored
489 $UNPROFscc_auto = ''; # set to relevant hsc flag if forcing auto sccs without profiling
490 $TICKYing = ''; # set to t if compiling for ticky-ticky profiling
491 $PARing = ''; # set to p if compiling for PAR
492 $CONCURing = ''; # set to c if compiling for CONCURRENT
493 $GRANing = ''; # set to g if compiling for GRAN
494 $StkChkByPageFaultOK = 1; # may be set to 0 (false) for some builds
495 $Specific_hi_file = ''; # set by -ohi <file>; "-" for stdout
496 $Specific_dump_file = ''; # set by -odump <file>; "-" for stdout
497 $Using_dump_file = 0;
499 $Osuffix = ''; # default: use the normal suffix for that kind of output
501 $HiSuffix_prelude = '';
502 $Do_recomp_chkr = 0; # don't use the recompilatio checker unless asked
503 $Do_cc = -1; # a MAGIC indeterminate value; will be set to 1 or 0.
506 $Keep_hc_file_too = 0;
507 $Keep_s_file_too = 0;
508 $UseGhcInternals = 0; # if 1, may use GHC* modules
511 $Dump_parser_output = 0;
513 $Dump_asm_splitting_info = 0;
514 $NoImplicitPrelude = 0;
517 } # end of initDriverGlobals (Sigh)
519 # we split the argv passed to the driver into three:
524 # and files to be linked...
530 # cmd line options prefixing the unit we're compiling
535 We inject consistency-checking information into \tr{.hc} files (both
536 when created by the Haskell compiler and when compiled by the C
537 compiler), so that we can check that an executable is made from
538 consistently-built pieces. (The check is normally done just after
539 linking.) The checking is done by introducing/munging
540 \tr{what(1)}-style strings. Anyway, here are the relevant global
541 variables and their defaults:
543 $LinkChk = 1; # set to 0 if the link check should *not* be done
545 # major & minor version numbers; major numbers must always agree;
546 # minor disagreements yield a warning.
547 $HsC_major_version = 33;
548 $HsC_minor_version = 0;
549 $Cc_major_version = 36;
550 $Cc_minor_version = 1;
552 # options: these must always agree
553 $HsC_consist_options = ''; # we record, in this order:
554 # Build tag; debugging?
555 $Cc_consist_options = ''; # we record, in this order:
556 # Build tag; debugging?
559 %************************************************************************
561 \section[Driver-parse-argv]{Munge the command-line options}
563 %************************************************************************
565 Now slurp through the arguments.
568 &initDriverGlobals();
569 &splitCmdLine(@ARGV);
570 # Run through the cmd-line first time.
571 &processArgs(@Cmd_opts);
573 # Check to see if driver is only in the business
574 # to generate dependencies
575 if ( $Status == 0 && $Only_generate_deps ) {
577 push (@MkDependHS_flags, "-o$Osuffix") if $Osuffix;
578 push (@MkDependHS_flags, "-s$BuildTag") if $BuildTag;
579 push (@MkDependHS_flags, "-D__HASKELL1__=$Haskell1Version");
580 # They're not (currently) needed, but we need to quote any -#include options
581 foreach (@Cmd_opts) {
582 s/-#include.*$/'$&'/g;
584 local($to_do) = "$MkDependHS @MkDependHS_flags -- @Cmd_opts -- @Input_file" ;
585 &run_something($to_do, 'Haskell dependencies');
589 # if there are several input files,
590 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
591 # (except if linking, of course)
593 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
594 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
595 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
596 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
597 print STDERR "\tPerhaps the -odir option will do what you want.\n";
602 # check for various pathological -o and -odir combinations...
603 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
604 if ($Specific_output_file eq '-') {
605 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
607 } else { # amalgamate...
608 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
609 # ToDo: check we haven't got a junk name now...
610 $Specific_output_dir = ''; # reset
614 # crash and burn if there were errors
616 print STDERR $ShortUsage;
621 %************************************************************************
623 \section[Driver-post-argv-mangling]{Setup after reading options}
625 %************************************************************************
627 %************************************************************************
629 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
631 %************************************************************************
633 We come now to the default ``wads of options'' that are turned on by
634 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
635 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
638 The user can also specify his/her own list of options in a file; in
639 that case, the work is already done (see stuff about @minusO3@,
642 GHC allows very precise control of what happens during a compilation.
643 Core-to-Core and STG-to-STG passes can be run in any order, as many
644 times as you like. Individual transformations can be turned on or
647 Sadly, however, there are some interdependencies \& Things You Must
648 Not Do. Here is the list.
652 \item[\tr{-fspecialise}:]
653 The specialiser must have dependency-analysed input; but if you run
654 the simplifier to do this, you must not let it toss away unused
655 bindings! (The typechecker conveys some specialisation info via
656 ``unused'' bindings...)
658 \item[\tr{-ffloat-inwards}:]
659 Floating inwards should be done before strictness analysis, because
660 the latter will give better results.
662 \item[\tr{-fstatic-args}:]
663 The static-arguments-transformation pass {\em must} have the
664 simplifier run right after it.
666 \item[\tr{-fcalc-inlinings[12]}:]
667 Not required, but there may be slight gains by re-simplifying after
668 this is done. (You could then \tr{-fcalc-inlinings} again, just for
671 \item[\tr{-ffull-laziness}:]
672 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
673 that's run. (Um, well, howzabout the simplifier just once more...)
678 \item[\tr{-fupdate-analysis}:]
679 It really really wants to be the last STG-to-STG pass that is run.
684 sub setupOptimiseFlags {
690 '-ffloat-lets-exposing-whnf',
691 '-ffloat-primops-ok',
694 # '-fdo-lambda-eta-expansion', # too complicated
696 # '-flet-to-case', # no strictness analysis, so...
697 $Oopt_PedanticBottoms,
698 # $Oopt_MonadEtaExpansion, # no thanks
700 # These two work fine, if you really want no simplification at all,
701 # for bizarre test reasons. But you get really terrible code if you use them,
702 # for example: let x = e in x
703 # with dozens of redundant thunks etc. So I'm leaving them out.
705 # '-fsimpl-uf-use-threshold0',
706 # '-fessential-unfoldings-only',
708 $Oopt_UnfoldingUseThreshold,
709 $Oopt_MaxSimplifierIterations,
710 $Oopt_ShowSimplifierProgress,
713 # '-ffull-laziness', # removed 95/04 WDP following Andr\'e's lead
715 $Oopt_FinalStgProfilingMassage
718 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
720 '-fdo-eta-reduction',
722 # initial simplify: mk specialiser happy: minimum effort please
726 '-fkeep-spec-pragma-ids', # required before specialisation
728 # I don't understand why we want -fessential-unfoldings-only here
729 # If we have it, the following nasty thing happens:
733 # where "*" means exported.
734 # In the essential-unfoldings pass we still substitute f for g
735 # but we don't substitute E for f first. So we get
739 # The g=f will get reverse-substituted later, but it's untidy.
741 # '-fessential-unfoldings-only',
742 # '-fsimpl-uf-use-threshold0',
744 '-fmax-simplifier-iterations1',
745 $Oopt_PedanticBottoms,
748 ($Oopt_DoSpecialise) ? (
749 '-fspecialise-overloaded',
750 $Oopt_SpecialiseUnboxed,
754 '-fsimplify', # need dependency anal after specialiser ...
755 '[', # need tossing before calc-inlinings ...
757 '-ffloat-lets-exposing-whnf',
758 '-ffloat-primops-ok',
762 # '-fdo-eta-reduction',
763 '-fdo-lambda-eta-expansion',
765 $Oopt_PedanticBottoms,
766 $Oopt_MonadEtaExpansion,
767 $Oopt_UnfoldingUseThreshold,
768 $Oopt_MaxSimplifierIterations,
769 $Oopt_ShowSimplifierProgress,
771 # The presence of -fclone-binds is *crucial* here as
772 # -ffull-laziness (which we're about to do next) floats
773 # bindings outwards, so we better make sure that this
774 # doesn't result in the floating out of bindings
775 # with identical uniques, i.e., -ffull-laziness needs
776 # to be preceeded by a simplifier pass with -fclone-binds
781 #LATER: '-fcalc-inlinings1', -- pointless for 2.01
783 # ($Oopt_FoldrBuildWW) ? (
784 # '-ffoldr-build-ww-anal',
785 # '-ffoldr-build-worker-wrapper',
789 # '-ffloat-lets-exposing-whnf',
790 # '-ffloat-primops-ok',
794 # '-fdo-eta-reduction',
795 # '-fdo-lambda-eta-expansion',
797 # $Oopt_PedanticBottoms,
798 # $Oopt_MonadEtaExpansion,
799 # $Oopt_UnfoldingUseThreshold,
800 # $Oopt_MaxSimplifierIterations,
801 # $Oopt_ShowSimplifierProgress,
805 # this pass-ordering sequence was agreed by Simon and Andr\'e
806 # (WDP 94/07, 94/11).
809 ($Oopt_FoldrBuild) ? (
810 '-ffoldr-build-on', # desugar list comprehensions for foldr/build
814 '-fignore-inline-pragma', # **** NB!
815 '-fdo-foldr-build', # NB
817 '-ffloat-lets-exposing-whnf',
818 '-ffloat-primops-ok',
822 # '-fdo-eta-reduction',
823 '-fdo-lambda-eta-expansion', # After full laziness
825 $Oopt_PedanticBottoms,
826 $Oopt_MonadEtaExpansion,
827 $Oopt_UnfoldingUseThreshold,
828 $Oopt_MaxSimplifierIterations,
829 $Oopt_ShowSimplifierProgress,
838 '-ffloat-lets-exposing-whnf',
839 '-ffloat-primops-ok',
843 '-fdo-eta-reduction',
844 '-fdo-lambda-eta-expansion',
846 ($Oopt_FoldrBuildInline),
847 # you need to inline foldr and build
848 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
849 # but do reductions if you see them!
850 $Oopt_PedanticBottoms,
851 $Oopt_MonadEtaExpansion,
852 $Oopt_UnfoldingUseThreshold,
853 $Oopt_MaxSimplifierIterations,
854 $Oopt_ShowSimplifierProgress,
862 '-ffloat-lets-exposing-whnf',
863 '-ffloat-primops-ok',
867 # '-fdo-eta-reduction',
868 '-fdo-lambda-eta-expansion',
870 '-flet-to-case', # Aha! Only done after strictness analysis
871 $Oopt_PedanticBottoms,
872 $Oopt_MonadEtaExpansion,
873 $Oopt_UnfoldingUseThreshold,
874 $Oopt_MaxSimplifierIterations,
875 $Oopt_ShowSimplifierProgress,
880 # Case-liberation for -O2. This should be after
881 # strictness analysis and the simplification which follows it.
885 # : "-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 ]" ),
887 # Final clean-up simplification:
892 '-ffloat-lets-exposing-whnf',
893 '-ffloat-primops-ok',
897 # '-fdo-eta-reduction',
898 '-fdo-lambda-eta-expansion',
901 '-fignore-inline-pragma', # **** NB!
902 $Oopt_FoldrBuildInline,
903 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
904 # but still do reductions if you see them!
905 $Oopt_PedanticBottoms,
906 $Oopt_MonadEtaExpansion,
907 $Oopt_UnfoldingUseThreshold,
908 $Oopt_MaxSimplifierIterations,
909 $Oopt_ShowSimplifierProgress,
914 #LATER: '-fcalc-inlinings2', -- pointless for 2.01
918 $Oopt_FinalStgProfilingMassage,
924 # SPECIAL FLAGS for -O2
926 '-fupdate-analysis', # virtually useless; relegated to -O2
933 Sort out what we're going to do about optimising. First, the @hsc@
934 flags and regular @cc@ flags to worry about:
936 if ( $OptLevel <= 0 ) {
938 # for this level, we tell the parser -fignore-interface-pragmas
939 push(@HsC_flags, '-fignore-interface-pragmas');
940 # and tell the compiler not to produce them
941 push(@HsC_flags, '-fomit-interface-pragmas');
943 &add_Hsc_flags( @HsC_minusNoO_flags );
944 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
946 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
948 &add_Hsc_flags( @HsC_minusO_flags );
949 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
950 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
951 # but it *is* useful in compiling the garbage collectors (so said
952 # Patrick many moons ago...).
954 } else { # -Ofile, then...
956 &add_Hsc_flags( @HsC_minusO3_flags );
957 push(@HsC_flags, $Oopt_FinalStgProfilingMassage) if $Oopt_FinalStgProfilingMassage;
959 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
962 } # setupOptimiseFlags
966 %************************************************************************
968 \subsection{Check for consistency, etc.}
970 %************************************************************************
972 Sort out @$BuildTag@, @$PROFing@, @$CONCURing@, @$PARing@,
973 @$GRANing@, @$TICKYing@:
975 sub setupBuildFlags {
978 # PROFILING stuff after argv mangling:
980 # warn about any scc exprs found (in case scc used as identifier)
981 push(@HsP_flags, '-W');
983 # add -auto sccs even if not profiling !
984 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
987 push(@HsC_flags, $PROFauto) if $PROFauto;
988 push(@HsC_flags, $PROFcaf) if $PROFcaf;
989 #push(@HsC_flags, $PROFdict) if $PROFdict;
991 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
993 # Ignore user sccs when auto annotating, but warn when doing so.
994 $PROFignore_scc = '-W' if $PROFauto;
996 push(@HsP_flags, (($PROFignore_scc) ? $PROFignore_scc : '-S'));
998 if ( $SplitObjFiles ) {
999 # can't split with cost centres -- would need global and externs
1000 print STDERR "$Pgm: WARNING: splitting objects when profiling will *BREAK* if any _scc_s are present!\n";
1001 # (but it's fine if there aren't any _scc_s around...)
1002 # $SplitObjFiles = 0; # unset
1003 #not an error: for now: $Status++;
1006 #if ( $BuildTag ne '' ) {
1007 # local($b) = $BuildDescr{$BuildTag};
1008 # if ($CONCURing eq 'c') { print STDERR "$Pgm: Can't mix $b with -concurrent.\n"; exit 1; }
1009 # if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
1010 # if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
1011 # if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
1013 # # ok to have a user-way profiling build
1014 # # eval the profiling opts ... but leave user-way BuildTag
1015 # if ($PROFing eq 'p') { &processArgs(split(' ', $SetupOpts{'_p'})); } # eval($EvaldSetupOpts{'_p'}); }
1017 if ( $PROFing eq 'p' ) {
1018 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
1019 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
1020 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
1021 $BuildTag = ($CONCURing eq 'c') ? '_mr' : '_p' ; # possibly "profiled concurrent"...
1023 } elsif ( $CONCURing eq 'c' ) {
1024 if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix -concurrent with -parallel.\n"; exit 1; }
1025 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -concurrent with -gransim.\n"; exit 1; }
1026 $BuildTag = ($TICKYing eq 't') ? '_mt' : '_mc' ; # possibly "ticky concurrent"...
1027 # "profiled concurrent" already acct'd for...
1029 } elsif ( $PARing eq 'p' ) {
1030 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
1031 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
1034 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
1035 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
1039 } elsif ( $GRANing eq 'g' ) {
1040 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
1043 } elsif ( $TICKYing eq 't' ) {
1049 After the sanity checks, add flags to the necessary parts of the driver pipeline:
1052 if ( $BuildTag ne '' ) { # something other than normal sequential...
1054 local($Tag) = "${BuildTag}";
1055 $Tag =~ s/_//; # move the underscore to the back
1057 $HscOut = '-C='; # must go via C
1058 &processArgs(split(' ', $SetupOpts{$BuildTag}));
1059 # eval($EvaldSetupOpts{$BuildTag});
1063 Decide what the consistency-checking options are in force for this run:
1066 $HsC_consist_options = "${BuildTag},${DEBUGging}";
1067 $Cc_consist_options = "${BuildTag},${DEBUGging}";
1070 # Funny place to put it, but why not.
1072 if ( $HiSuffix_prelude eq '' ) {
1073 local($Tag) = "${BuildTag}";
1075 $Tag = "${Tag}_" if $Tag ne '';
1076 $HiSuffix_prelude="${Tag}hi";
1078 #push(@HsC_flags, "-hisuf-prelude=.${HiSuffix_prelude}"); # use appropriate Prelude .hi files
1079 #push(@HsC_flags, "-hisuf=.${HiSuffix}");
1084 %************************************************************************
1086 \subsection{Add on machine-specific C-compiler flags}
1088 %************************************************************************
1090 Shove on magical machine-specific options. We use \tr{unshift} to
1091 stick them on the {\em front} of the arrays, so that ``later''
1092 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
1094 Note: a few ``always apply'' flags were set at the very beginning.
1099 if ($TargetPlatform =~ /^alpha-/) {
1100 # we know how to *mangle* asm for alpha
1101 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1102 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1103 unshift(@CcBoth_flags, ('-static'));
1105 } elsif ($TargetPlatform =~ /^hppa/) {
1106 # we know how to *mangle* asm for hppa
1107 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1108 unshift(@CcBoth_flags, ('-static'));
1110 # We don't put in '-mlong-calls', because it's only
1111 # needed for very big modules (sigh), and we don't want
1112 # to hobble ourselves further on all the other modules
1115 # [Dated comment (gcc-2.6.x?), -mlong-calls is no longer
1116 # a supported gcc HPPA flag]
1117 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
1118 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
1119 # (very nice, but too bad the HP /usr/include files don't agree.)
1121 } elsif ($TargetPlatform =~ /^i386-/) {
1122 # we know how to *mangle* asm for X86
1123 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1124 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK && $TargetPlatform !~ /nextstep/;
1125 # I do not know how to do STACK_CHECK_BY_PAGE_FAULT
1126 # on NeXTs (my fault, not theirs), so I don't.
1129 # -fno-defer-pop : basically the same game as for m68k
1131 # -fomit-frame-pointer : *must* ; because we're stealing
1132 # the fp (%ebp) for our register maps. *All* register
1133 # maps (in MachRegs.lh) must steal it.
1135 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1136 unshift(@CcRegd_flags, '-fomit-frame-pointer');
1137 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1139 } elsif ($TargetPlatform =~ /^m68k-/) {
1140 # we know how to *mangle* asm for m68k
1141 unshift (@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1142 unshift (@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK && $TargetPlatform !~ /nextstep/;
1143 # I do not know how to do STACK_CHECK_BY_PAGE_FAULT
1144 # on NeXTs (my fault, not theirs), so I don't.
1147 # -fno-defer-pop : for the .hc files, we want all the pushing/
1148 # popping of args to routines to be explicit; if we let things
1149 # be deferred 'til after an STGJUMP, imminent death is certain!
1151 # -fomit-frame-pointer : *don't*
1152 # It's better to have a6 completely tied up being a frame pointer
1153 # rather than let GCC pick random things to do with it.
1154 # (If we want to steal a6, then we would try to do things
1155 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1157 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1158 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1159 # maybe gives reg alloc a better time
1160 # also: -fno-defer-pop is not sufficiently well-behaved without it
1162 } elsif ($TargetPlatform =~ /^mips-/) {
1163 # we (hope to) know how to *mangle* asm for MIPSen
1164 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1165 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1166 unshift(@CcBoth_flags, ('-static'));
1168 } elsif ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1169 # we know how to *mangle* asm for PowerPC
1170 # :-( unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1171 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1172 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1173 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1174 } elsif ($TargetPlatform =~ /^sparc-/) {
1175 # we know how to *mangle* asm for SPARC
1176 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1177 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1180 } # end of setupMachOpts
1183 %************************************************************************
1185 \subsection{Set up for warnings}
1187 %************************************************************************
1189 Several warnings are turned on by default. These are supposed to be
1190 the 'I'm pretty sure you've made a mistake here' kind of warnings.
1191 The rest are turned on by the -W and -Wall options, or individually
1192 via their -fwarn and -fno-warn flags.
1195 sub setupWarningFlags {
1196 &add_Hsc_flags( @StandardWarnings );
1200 Same unshifting magic, but for special linker flags.
1202 The configure script determines whether the object file symbol tables
1203 have a leading underscore, and sets @LeadingUnderscore@ accordingly.
1204 (The driver script `sees' the setting of the @LeadingUnderscore@
1205 by having the Makefile prepend it).
1209 local($uscore) = ( ${LeadingUnderscore} eq 'YES' ) ? '_' : '';
1212 (($Ld_main) ? ( '-u', "${uscore}Main_" . $Ld_main . '_closure' ) : ()));
1214 ( '-u', "${uscore}PrelBase_Z91Z93_closure" # i.e., []
1215 ,'-u', "${uscore}PrelBase_IZh_static_info"
1216 ,'-u', "${uscore}PrelBase_CZh_static_info"
1217 ,'-u', "${uscore}PrelBase_False_inregs_info"
1218 ,'-u', "${uscore}PrelBase_True_inregs_info"
1219 ,'-u', "${uscore}DEBUG_REGS"
1221 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1222 # sometimes we have lots of toc entries...
1223 # unshift(@Ld_flags, ('-Xlinker -bbigtoc -Xlinker -bnoquiet'));
1224 unshift(@Ld_flags, ('-Xlinker -bbigtoc'));
1227 } # end of setupLinkOpts
1231 %************************************************************************
1233 \subsection{Set up include paths and system-library enslurpment}
1235 %************************************************************************
1237 Now that we know what garbage-collector, etc., are required, we can
1238 finalise our list of libraries to slurp through, and generally Get
1243 # default includes must be added AFTER option processing
1244 if ( ! $INSTALLING ) {
1245 push (@Include_dir, "$TopPwd/${CURRENT_DIR}/${GHC_INCLUDE_DIR}");
1247 push (@Include_dir, "$InstLibDirGhc/includes");
1248 push (@Include_dir, "$InstLibDirGhc/includes");
1250 } # end of setupIncPaths
1255 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1258 foreach $f (@SysLibrary) {
1259 next if $f =~ /_cbits/;
1260 $f .= $BuildTag if $f =~ /^-lHS/;
1263 # fiddle the TopClosure file name...
1264 $TopClosureFile =~ s/XXXX//;
1266 # Push library HSrts, plus boring clib bit
1267 push(@SysLibrary, "-lHSrts${BuildTag}");
1268 push(@SysLibrary, '-lHSclib');
1270 # RTS compiled with cygwin32, uses the WinMM API
1271 # to implement the itimers, since cygwin.dll does not
1272 # support it. Only reqd. for `ways' that use itimers.
1274 push(@SysLibrary, '-lwinmm') if $BuildTag ne '' && $TargetPlatform eq 'i386-unknown-cygwin32';
1276 # Push the pvm libraries
1277 if ($BuildTag eq '_mp') {
1278 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1279 push(@SysLibrary, "-L$pvmlib", '-lpvm3', '-lgpvm3');
1280 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1281 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1282 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1283 push(@SysLibrary, '-lsocket', '-lnsl');
1287 # Push the GNU multi-precision arith lib; and the math library
1288 push(@SysLibrary, '-lgmp');
1289 push(@SysLibrary, '-lm');
1292 %************************************************************************
1294 \subsection{Check that this system was built to do what we are asking}
1296 %************************************************************************
1298 Before continuing we check that the appropriate build is available.
1301 #die "$Pgm: no BuildAvail?? $BuildTag\n" if $BuildDescr{$BuildTag} eq '' ; # sanity
1303 if ( $BuildDescr{$BuildTag} eq '' ) {
1304 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1305 "' \"build\" is not available with your GHC setup.\n";
1306 print STDERR "(It was not configured for it at your site.)\n";
1307 print STDERR $ShortUsage;
1311 } # end of setupSyslibs
1315 %************************************************************************
1317 \subsection{Final miscellaneous setup bits before we start going}
1319 %************************************************************************
1321 Record largest specific heapsize, if any.
1323 sub setupHeapStackSize {
1324 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1325 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1326 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1327 push(@HsC_rts_flags, "-K$Specific_stk_size");
1331 If no input or link files seen, then we let 'em feed in stdin; this is
1332 mainly for debugging.
1336 if ($#Input_file < 0 && $#Link_file < 0) {
1337 @Input_file = ( '-' );
1339 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1340 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n" if -t;
1341 while (<STDIN>) { print INF $_; }
1342 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1347 Tell the world who we are, if they asked.
1349 print STDERR "${ProjectName}, version ${ProjectVersion}, patchlevel ${ProjectPatchLevel}\n"
1353 %************************************************************************
1355 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1357 %************************************************************************
1359 Process the input files; don't continue with linking if there are
1360 problems (global variable @$Status@ non-zero).
1362 foreach $ifile (@Input_file) {
1363 &ProcessInputFile($ifile);
1366 if ( $Status > 0 ) { # don't link if there were errors...
1367 print STDERR $ShortUsage;
1372 # append last minute flags linker and consistency flags
1379 Link if appropriate.
1382 local($libdirs) = '';
1384 # glue them together:
1385 push(@UserLibrary_dir, @SysLibrary_dir);
1387 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1389 # for a linker, use an explicitly given one, or the going C compiler ...
1390 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1392 if ( ($Specific_output_file eq '') &&
1393 ($TargetPlatform eq 'i386-unknown-cygwin32') ) {
1394 $Specific_output_file = 'main.exe';
1395 print STDERR "Output file not specified, defaulting to \"main.exe\"\n";
1398 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1399 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1401 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $TopClosureFile $libdirs @UserLibrary @SysLibrary";
1402 &run_something($to_do, 'Linker');
1404 # finally, check the consistency info in the binary
1405 local($executable) = $Files_to_tidy[0];
1406 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1409 # dynamically load consistency-chking code; then do it.
1410 require('ghc-consist.prl')
1411 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1413 &chk_consistency_info ( $executable );
1416 # if PVM parallel stuff, we do truly weird things.
1417 # Essentially: (1) move the executable over to where PVM expects
1418 # to find it. (2) create a script in place of the executable
1419 # which will cause the program to be run, via SysMan.
1420 if ( $PARing eq 'p' ) {
1421 local($pvm_executable) = $executable;
1422 local($pvm_executable_base);
1424 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1425 local($pwd) = `pwd`;
1427 $pwd =~ s/^\/tmp_mnt//;
1428 $pvm_executable = "$pwd/$pvm_executable";
1431 $pvm_executable =~ s|/|=|g; # make /s into =s
1432 $pvm_executable_base = $pvm_executable;
1434 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1435 . "/$pvm_executable";
1437 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1439 # OK, now create the magic script for "$executable"
1440 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1441 print EXEC <<EOSCRIPT1;
1442 eval 'exec perl -S \$0 \${1+"\$@"}'
1443 if \$running_under_some_shell;
1444 # =!=!=!=!=!=!=!=!=!=!=!
1445 # This script is automatically generated: DO NOT EDIT!!!
1446 # Generated by Glasgow Haskell, version ${ProjectVersion} ${ProjectPatchLevel}
1448 \$pvm_executable = '$pvm_executable';
1449 \$pvm_executable_base = '$pvm_executable_base';
1450 \$SysMan = '$SysMan';
1453 print EXEC <<\EOSCRIPT2;
1454 # first, some magical shortcuts to run "commands" on the binary
1456 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1458 system("$cmd $pvm_executable");
1462 # OK, really run it; process the args first
1463 $ENV{'PE'} = $pvm_executable_base;
1465 $nprocessors = 2; # the default
1469 # ToDo: handle --RTS
1470 args: while ($a = shift(@ARGV)) {
1471 if ( $a eq '+RTS' ) {
1473 } elsif ( $a eq '-RTS' ) {
1476 if ( $a eq '-d' && $in_RTS_args ) {
1478 } elsif ( $a =~ /^-N(\d+)/ && $in_RTS_args ) {
1481 push(@nonPVM_args, $a);
1485 local($return_val) = 0;
1486 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
1488 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
1491 close(EXEC) || die "Failed closing $executable\n";
1492 chmod 0755, $executable;
1496 # that... that's all, folks!
1498 exit $Status; # will still be 0 if all went well
1501 %************************************************************************
1503 \section[Driver-do-one-file]{How to process a single input file}
1505 %************************************************************************
1508 sub ProcessInputFile {
1509 local($ifile) = @_; # input file name
1510 local($ifile_root); # root of or basename of input file
1511 local($ofile_target); # ultimate output file we hope to produce
1512 # from input file (need to know for recomp
1513 # checking purposes)
1514 local($hifile_target);# ditto (but .hi file)
1517 Handle the weirdity of input from stdin.
1519 if ($ifile ne '-') {
1520 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1521 $ofile_target = # may be reset later...
1522 ($Specific_output_file ne '' && ! $Do_lnkr)
1523 ? $Specific_output_file
1524 : &odir_ify($ifile_root, 'o');
1525 $hifile_target= ($Specific_hi_file ne '')
1527 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1528 # NB: may change if $ifile_root isn't module name (??)
1530 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1531 $ifile_root = '_stdin';
1532 $ofile_target = '_stdout'; # gratuitous?
1533 $hifile_target= '_stdout'; # ditto?
1537 We need to decide what phases of the compilation system we will run
1538 over this file. The defaults are the ones established when processing
1539 flags. (That established what the last phase run for all files is.)
1541 We do the pre-recompilation-checker phases here; the rest later.
1545 Look at the suffix and decide what initial phases of compilation may
1546 be dropped off for this file. Also the rather boring business of
1547 which files are coming-in/going-out.
1549 Again, we'll do the post-recompilation-checker parts of this later.
1551 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1552 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1555 # names of the files to stuff between phases
1556 # defaults are temporaries
1557 local($in_lit2pgm) = $ifile;
1558 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1559 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1560 local($hsc_hi) = "$Tmp_prefix.hi";
1561 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1562 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1563 local($as_out) = $ofile_target;
1565 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
1567 # OK, let's strip off some literate junk..
1569 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
1571 $lit2pgm_hscpp = $ifile;
1577 # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas
1578 &check_for_source_options($lit2pgm_hscpp,$ifile);
1580 # Options found in the source file take a back seat, i.e., we scan
1581 # them first. Only process the command line again if source file
1582 # contained anything of interest *or* there's more than one
1583 # input file (we have to reset the options).
1585 if ( $#Input_file >= 0 || $#File_options >= 0) {
1586 #@File_options = (@File_options, @Cmd_opts);
1588 # Now process the command line
1589 &initDriverGlobals();
1590 &processArgs((@File_options,@Cmd_opts));
1591 print STDERR "\nEffective command line: " .
1592 join(' ',(@File_options,@Cmd_opts)) . "\n" if $Verbose;
1595 # Having got the effective command line scanned, set up
1596 # the various options in prep for some real work.
1598 # check the sanity of the BuildTag we're about to use,
1599 # and if needs be, add some more flags and setup to
1600 # the different phases.
1603 &setupOptimiseFlags();
1606 &setupWarningFlags();
1607 &setupHeapStackSize();
1610 # These two variables need to be set after the
1611 # command-line has been processed and the build options
1612 # have be seen set up. This is because command-line options
1613 # can control whether to compile vias C or not.
1615 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1617 : ( ($HscOut eq '-C=') ? 1 : 0 );
1618 local($do_as) = $Do_as;
1619 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1621 if ($Only_preprocess_hc) { # stop after having run $Cc -E
1624 if ($Only_preprocess_C) { # stop after having run $hscpp
1625 $do_hsc=0; $do_cc = 0; $do_as=0;
1626 } elsif ($ifile =~ /.lhs$/ || $ifile =~ /.hs$/ ) {
1628 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
1629 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1631 } elsif ($ifile =~ /\.c$/) {
1632 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1633 $hsc_out = $ifile; $is_hc_file = 0;
1634 } elsif ($ifile =~ /\.s$/) {
1635 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
1637 } else { # don't know what it is, but nothing to do herein...
1638 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
1641 # hack to avoid running hscpp
1642 $HsCpp = $Cat if ! $Cpp_flag_set;
1644 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) if $do_hscpp;
1648 We now think about whether to run hsc/cc or not (when hsc produces .s
1649 stuff, it effectively takes the place of both phases).
1651 To get the output file name right: for each phase that we are {\em
1652 not} going to run, set its input (i.e., the output of its preceding
1653 phase) to @"$ifile_root.<suffix>"@.
1656 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
1659 # Warning issued if -keep-hc-file-too is used without
1660 # -fvia-C (or the equivalent)
1662 if ( $HscOut ne '-C=' && $Keep_hc_file_too ) {
1663 print STDERR "$Pgm: warning: Native code generator to be used, -keep-hc-file-too will be ignored\n";
1666 if (! $do_cc && ! $do_as) { # stopping after hsc
1667 $hsc_out = ($Specific_output_file ne '')
1668 ? $Specific_output_file
1669 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
1671 $ofile_target = $hsc_out; # reset
1674 if (! $do_as) { # stopping after gcc (or hsc)
1675 $cc_as = ($Specific_output_file ne '')
1676 ? $Specific_output_file
1677 : &odir_ify($ifile_root, ( $Only_preprocess_hc ) ? 'i' : 's');
1679 $ofile_target = $cc_as; # reset
1685 Now the Haskell compiler, C compiler, and assembler
1689 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
1690 $ofile_target, $hifile_target);
1694 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
1695 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root) if ! $Only_preprocess_hc;
1698 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
1700 # save a copy of the .s file..
1701 &saveIntermediate($ifile_root , "s" , $cc_as) if ($do_as && $Keep_s_file_too);
1702 &runAs($as_out, $ifile_root) if $do_as;
1705 Finally, decide what to queue up for linker input.
1707 # tentatively assume we will eventually produce linker input:
1708 push(@Link_file, &odir_ify($ifile_root, 'o'));
1710 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
1713 if ( $ifile !~ /\.(lhs|hs|hc|c|s|a)$/ && $ifile !~ /_hc$/ ) {
1714 # There's sometimes confusion regarding .hi files; users
1715 # supplying them on the command line.
1716 if ( $ifile =~ /\.hi$/ ) {
1717 print STDERR "$Pgm: warning: found `$ifile' on command line; interface files should not be supplied here - ignoring it.\n";
1719 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n";
1721 # oops; we tentatively pushed the wrong thing; fix & do the right thing
1722 pop(@Link_file); push(@Link_file, $ifile);
1726 } # end of ProcessInputFile
1729 %************************************************************************
1731 \section[Driver-run-phases]{Routines to run the various phases}
1733 %************************************************************************
1737 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
1741 # Only add #line pragma if we're going to need it.
1742 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && " if ($Cpp_flag_set);
1743 $to_do .= "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
1745 push(@Files_to_tidy, $lit2pgm_hscpp );
1747 &run_something($to_do, 'literate pre-processor');
1753 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
1757 # Strictly speaking, echoing of the following line pragma is only required
1758 # on non-delit'ed input, as we've already added it during de-lit. However,
1759 # hscpp will then add a {-# LINE 1 "$lit2pgm_hsc" -} to the top of the file,
1760 # which is not very informative (but harmless). Hence, we uniformly have
1761 # {-# LINE 1 "$in_lit2pgm" #-} as the first line to all cpp'ed hsc input.
1763 $to_do = "echo '{-# LINE 1 \"$in_lit2pgm\" -}' > $hscpp_hsc && ";
1765 if ($HsCpp eq $Cat) {
1766 $to_do .= "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
1767 push(@Files_to_tidy, $hscpp_hsc );
1768 &run_something($to_do, 'Ineffective C pre-processor');
1770 local($includes) = '-I' . join(' -I',@Include_dir);
1771 $to_do .= "$HsCpp $Verbose @HsCpp_flags -D__HASKELL1__=$Haskell1Version -D__GLASGOW_HASKELL__=$GhcVersionInfo $includes $lit2pgm_hscpp >> $hscpp_hsc";
1772 push(@Files_to_tidy, $hscpp_hsc );
1773 &run_something($to_do, 'Haskellised C pre-processor');
1776 if ( $Only_preprocess_C ) {
1777 $to_do = "$Cat $hscpp_hsc";
1778 &run_something($to_do, '');
1786 sub runHscAndProcessInterfaces {
1787 local($ifile, $hscpp_hsc, $ifile_root, $ofile_target, $hifile_target) = @_;
1789 # $ifile is the original input file
1790 # $hscpp_hsc post-unlit, post-cpp, etc., input file
1791 # $ifile_root input filename minus suffix
1792 # $ofile_target the output file that we ultimately hope to produce
1793 # $hifile_target the .hi file ... (ditto)
1795 local($source_unchanged) = 1;
1797 # Check if the source file is up to date relative to the target; in
1798 # that case we say "source is unchanged" and let the compiler bail out
1799 # early if the import usage information allows it.
1801 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
1802 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
1804 # The informational messages below are now conditional on -v being set -- SOF
1805 if ( $ofile_target ne "_stdin.s" && ! -f $ofile_target ) {
1806 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n" if $Verbose;
1807 $source_unchanged = 0;
1810 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
1811 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
1813 if ( $hifile_target ne "_stdout" && ! -f $hifile_target ) {
1814 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n" if $Verbose;
1815 $source_unchanged = 0;
1818 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
1819 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
1821 if ( $ofile_target ne "_stdin.s" && $i_mtime > $o_mtime) {
1822 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n" if $Verbose;
1823 $source_unchanged = 0;
1826 # So if source_unchanged is still "1", we pass on the good news to the compiler
1827 # The -recomp flag can disable this, forcing recompilation
1828 if ($Do_recomp_chkr && $source_unchanged) {
1829 push(@HsC_flags, '-fsource-unchanged');
1834 &runHsc($ifile_root, $hsc_out, $hsc_hi, $going_interactive);
1836 # See if it bailed out early, saying nothing needed doing.
1837 # We work this out by seeing if it created an output .hi file
1839 if ( ! -f $hsc_hi && $ProduceHi !~ /-nohifile=/ ) {
1840 # Doesn't exist, so we bailed out early.
1841 # Tell the C compiler and assembler not to run
1842 $do_cc = 0; $do_as = 0;
1844 # Update dependency info, touch both object file and
1845 # interface file, so that the following invariant is
1848 # a dependent module's interface file should after recompilation
1849 # checking be newer than the interface files of its imports.
1851 # That is, if module A's interface file changes, then module B
1852 # (which import from A) needs to be checked.
1853 # If A's change does not affect B, which causes the compiler to bail
1854 # out early, we still need to touch the interface file of B. The reason
1855 # for this is that B may export A's interface.
1857 &run_something("touch $ofile_target",
1858 "Touch $ofile_target, to propagate dependencies") if $HscOut ne '-N=';
1859 &run_something("touch $hifile_target",
1860 "Touch $hifile_target, to propagate dependencies") if $ProduceHi =~ /-nohifile=/ ;
1864 # Didn't bail out early (new .hi file) so we thunder on
1866 # If non-interactive, heave in the consistency info at the end
1867 # NB: pretty hackish (depends on how $output is set)
1868 if ( ! $going_interactive ) {
1869 if ( $HscOut eq '-C=' ) {
1870 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
1872 } elsif ( $HscOut eq '-S=' ) {
1873 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
1874 $consist =~ s/,/./g;
1875 $consist =~ s/\//./g;
1876 $consist =~ s/-/_/g;
1877 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
1878 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
1880 &run_something($to_do, 'Pin on Haskell consistency info');
1884 # Interface-handling is important enough to live off by itself
1885 if ( $ProduceHi !~ /-nohifile=/ ) { # If we've produced one, process it.
1886 require('ghc-iface.prl') || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
1887 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
1889 # if we're going to split up object files,
1890 # we inject split markers into the .hc file now
1891 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
1892 &inject_split_markers ( $hsc_out );
1895 # save a copy of the .hc file, even if we are carrying on...
1896 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
1897 &saveIntermediate($ifile_root , "hc" , $hsc_out);
1907 local($ifile_root, $hsc_out, $hsc_hi, $going_interactive) = @_;
1909 # prepend comma to HsP flags (so hsc can tell them apart...)
1910 foreach $a ( @HsP_flags ) { $a = ",$a" unless $a =~ /^,/; }
1912 &makeHiMap() unless $HiMapDone;
1913 #print STDERR "HiIncludes: $HiIncludeString\n";
1914 push(@HsC_flags, "-himap=$HiIncludeString");
1916 # here, we may produce .hc/.s and/or .hi files
1917 local($output) = '';
1918 #@Files_to_tidy = ();
1920 if ( $going_interactive ) {
1921 # don't need .hi unless going to show it on stdout:
1922 $ProduceHi = '-nohifile=' if ! $HiOnStdout;
1923 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
1926 # set up for producing output/.hi; note that flag twiddling
1927 # may mean that nothing will actually be produced:
1928 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out";
1929 push(@Files_to_tidy, $hsc_hi, $hsc_out );
1931 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
1932 if ( $CollectingGCstats ) {
1933 push(@HsC_rts_flags, "-S$ifile_root.stat");
1934 push(@Files_to_tidy, "$ifile_root.stat");
1937 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
1938 # emit nofibbish time/bytes-alloc stats to stderr;
1939 # see later .stat file post-processing
1940 print STDERR "warning: both -Rgc-stats and -Rghc-timing used, -Rghc-timing wins." if $CollectingGCstats;
1941 push(@HsC_rts_flags, "-s$Tmp_prefix.stat");
1942 push(@Files_to_tidy, "$Tmp_prefix.stat");
1946 if ($Specific_dump_file ne '') {
1947 $dump = "2>> $Specific_dump_file";
1948 $Using_dump_file = 1;
1952 $to_do = "$HsC @HsP_flags ,$hscpp_hsc $dump @HsC_flags $CoreLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
1953 &run_something($to_do, 'Haskell compiler');
1955 # finish business w/ nofibbish time/bytes-alloc stats
1956 &process_ghc_timings() if $CollectGhcTimings;
1960 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
1961 of (module-name, pathname) pairs, one per line, separated by a space.
1964 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1968 # collect in %HiMap; write later; also used elsewhere in driver
1970 local($mod, $path, $d, $e);
1972 # reset the global variables:
1974 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1976 foreach $d ( @Import_dir ) {
1977 if ($HiIncludeString) {
1978 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix}";
1980 $HiIncludeString = "$d%.${HiSuffix}";
1985 foreach $d ( @SysImport_dir ) {
1986 if ($HiIncludeString) {
1987 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix_prelude}";
1989 $HiIncludeString = "${d}%.${HiSuffix_prelude}";
1998 %************************************************************************
2000 \section[Driver-misc-utils]{Miscellaneous utilities}
2002 %************************************************************************
2004 %************************************************************************
2006 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
2008 %************************************************************************
2012 local($ofile,$def_suffix) = @_;
2014 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
2018 local($orig_file, $def_suffix) = @_;
2019 if ($Specific_output_dir eq '') { # do nothing
2020 &osuf_ify($orig_file, $def_suffix);
2022 local ($orig_file_only);
2023 ($orig_file_only = $orig_file) =~ s|.*/||;
2024 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
2031 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
2033 local($includes) = '-I' . join(' -I', @Include_dir);
2036 local($c_flags) = "@CcBoth_flags";
2037 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2039 # "input" files to use that are not in some weird directory;
2040 # to help C compilers grok .hc files [ToDo: de-hackify]
2041 local($cc_help) = "ghc$$.c";
2042 local($cc_help_s) = "ghc$$.s";
2045 $s_output = ($is_hc_file || $TargetPlatform =~ /^(powerpc|rs6000|hppa|i386)/) ? $cc_as_o : $cc_as;
2046 $c_flags .= " @CcRegd_flags";
2047 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2049 # C compiler won't like the .hc extension. So we create
2050 # a tmp .c file which #include's the needful.
2051 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2052 if ( $is_hc_file ) {
2054 #ifdef __STG_GCC_REGS__
2055 # if ! (defined(MAIN_REG_MAP) || defined(MARK_REG_MAP) || defined(SCAN_REG_MAP) || defined(SCAV_REG_MAP) || defined(FLUSH_REG_MAP))
2056 # define MAIN_REG_MAP
2059 #include "stgdefs.h"
2061 # user may have asked for #includes to be injected...
2062 print TMP @CcInjects if $#CcInjects >= 0;
2064 # heave in the consistency info
2065 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2067 # and #include the real source
2068 print TMP "#include \"$hsc_out\"\n";
2069 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2071 # Don't redirect stderr into intermediate file if slamming output onto stdout (e.g., with -E)
2072 local($fuse_stderr) = "2>&1" if ! $Only_preprocess_hc;
2073 local($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 )";
2074 # note: __GLASGOW_HASKELL__ is pointedly *not* #defined at the C level.
2076 if ( $Only_preprocess_hc ) { # HACK ALERT!
2077 $to_do =~ s/ -S\b//g;
2079 push(@Files_to_tidy, $cc_help, $cc_help_s, $s_output );
2080 $PostprocessCcOutput = 1 if ! $Only_preprocess_hc; # hack, dear hack...
2081 &run_something($to_do, 'C compiler');
2082 $PostprocessCcOutput = 0;
2083 if ( $Only_preprocess_hc ) {
2084 system("$Cat $Tmp_prefix.ccout");
2086 unlink($cc_help, $cc_help_s);
2092 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2094 if ( $is_hc_file ) {
2095 # dynamically load assembler-fiddling code, which we are about to use:
2096 require('ghc-asm.prl')
2097 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2100 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2103 # post-process the assembler [.hc files only]
2104 &mangle_asm($cc_as_o, $cc_as);
2108 #OLD: local($target) = 'oops';
2109 #OLD: $target = '-alpha' if $TargetPlatform =~ /^alpha-/;
2110 #OLD: $target = '-hppa' if $TargetPlatform =~ /^hppa/;
2111 #OLD: $target = '-old-asm' if $TargetPlatform =~ /^i386-/;
2112 #OLD: $target = '-m68k' if $TargetPlatform =~ /^m68k-/;
2113 #OLD: $target = '-mips' if $TargetPlatform =~ /^mips-/;
2114 #OLD: $target = '' if $TargetPlatform =~ /^powerpc-/;
2115 #OLD: $target = '-solaris' if $TargetPlatform =~ /^sparc-sun-solaris2/;
2116 #OLD: $target = '-sparc' if $TargetPlatform =~ /^sparc-sun-sunos4/;
2118 #OLD: if ( $target ne '' ) {
2119 #OLD: require("ghc-asm$target.prl")
2120 #OLD: || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm$target.prl!\n");
2121 #OLD: &mangle_asm($cc_as_o, "$cc_as-2"); # the OLD one!
2122 #OLD: &run_something("$Cmp -s $cc_as-2 $cc_as || $Diff $cc_as-2 $cc_as 1>&2 || exit 0",
2123 #OLD: "Diff'ing old and new mangled .s files"); # NB: to stderr
2126 } elsif ($TargetPlatform =~ /^hppa/) {
2127 # minor mangling of non-threaded files for hp-pa only
2128 require('ghc-asm.prl')
2129 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2130 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2132 } elsif ($TargetPlatform =~ /^powerpc|^rs6000/) {
2133 # minor mangling of non-threaded files for powerpcs and rs6000s
2134 require('ghc-asm.prl')
2135 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-powerpc.prl!\n");
2136 &mini_mangle_asm_powerpc($cc_as_o, $cc_as);
2137 } elsif ($TargetPlatform =~ /^i386/) {
2138 # extremely-minor OFFENSIVE mangling of non-threaded just one file
2139 require('ghc-asm.prl')
2140 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2141 &mini_mangle_asm_i386($cc_as_o, $cc_as);
2144 # save a copy of the .s file, even if we are carrying on...
2145 #if ($do_as && $Keep_s_file_too) {
2146 # &saveIntermediate($ifile_root , "s" , $cc_as);
2153 local($as_out, $ifile_root) = @_;
2155 local($asmblr) = ( $As ) ? $As : $CcRegd;
2157 if ( ! $SplitObjFiles ) {
2158 local($to_do) = "$asmblr -o $as_out -c @As_flags $cc_as";
2159 push(@Files_to_tidy, $as_out );
2160 &run_something($to_do, 'Unix assembler');
2162 } else { # more complicated split-ification...
2164 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2166 # If -odir is used, great, just pin it in front of the
2167 # generated split file names. If it hasn't been set, we
2168 # snatch it from the ifile_root.
2172 if ( $Specific_output_dir eq '' ) {
2173 $Specific_output_dir = ${ifile_root};
2176 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2177 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2178 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2179 push(@Files_to_tidy, $split_out );
2181 &run_something($to_do, 'Unix assembler');
2187 %************************************************************************
2189 \subsection[Driver-run-something]{@run_something@: Run a phase}
2191 %************************************************************************
2195 local($str_to_do, $tidy_name) = @_;
2197 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2198 print STDERR "$str_to_do\n" if $Verbose;
2200 if ($Using_dump_file) {
2201 open(DUMP, ">> $Specific_dump_file")
2202 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2203 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2205 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2208 local($return_val) = 0;
2210 if ( length($str_to_do) > 4000) {
2211 # 4000 - on the random side, just like the *real* ARG_MAX
2214 # With some shells, command lines of this length may
2215 # very well cause trouble. To safeguard against this, we squirrel the
2216 # command into a file and exec that.
2217 local ($sh) = $ENV{'REAL_SHELL'};
2218 print STDERR "Backup plan A: saving cmd line in ${Tmp_prefix}.sh and executing that with $sh\n" if $Verbose;
2219 open (TEMP, "> ${Tmp_prefix}.sh") ||
2220 &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.sh'\n");
2221 print TEMP "$Time $str_to_do\n";
2223 &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.sh'\n");
2224 system("$sh $Tmp_prefix.sh");
2227 unlink "${Tmp_prefix}.sh";
2229 system("$Time $str_to_do");
2233 if ( $PostprocessCcOutput ) { # hack, continued
2234 open(CCOUT, "< $Tmp_prefix.ccout")
2235 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2237 next if /attribute directive ignored/;
2238 next if /call-clobbered/;
2239 next if /from .*COptRegs\.lh/;
2240 next if /from .*(stg|rts)defs\.h:/;
2241 next if /from ghc\d+.c:\d+:/;
2242 next if /from .*\.lc/;
2243 next if /from .*SMinternal\.l?h/;
2244 next if /ANSI C does not support \`long long\'/;
2245 next if /warning:.*was declared \`extern\' and later \`static\'/;
2246 next if /warning: assignment discards \`const\' from pointer target type/;
2247 next if /: At top level:$/;
2248 next if /: In function \`.*\':$/;
2249 next if /\`ghc_cc_ID\' defined but not used/;
2252 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2255 if ($return_val != 0) {
2256 if ($Using_dump_file) {
2257 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2260 &tidy_up_and_die($return_val, '');
2262 $Using_dump_file = 0;
2266 %************************************************************************
2268 \subsection[Driver-ghc-timing]{Emit nofibbish GHC timings}
2270 %************************************************************************
2272 NB: nearly the same as in @runstdtest@ script.
2275 sub process_ghc_timings {
2276 local($StatsFile) = "$Tmp_prefix.stat";
2277 local($SysSpecificTiming) = 'ghc';
2279 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2280 local($max_live) = 0;
2281 local($tot_live) = 0; # for calculating residency stuff
2282 local($tot_samples) = 0;
2285 if (! /Minor/ && /^\s*\d+\s+\d+\s+(\d+)\s+\d+\.\d+\%/ ) {
2286 $max_live = $1 if $max_live < $1;
2290 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2292 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2293 $MaxResidency = $1; $ResidencySamples = $2;
2296 $GCs = $1 if /^\s*([0-9,]+) garbage collections? performed/;
2298 # The presence of -? in the following pattern is only there to
2299 # accommodate 0.29 && <= 2.05 RTS'
2300 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*-?(\d+\.\d\d)s elapsed\)/ ) {
2301 $InitTime = $1; $InitElapsed = $2;
2302 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2303 $MutTime = $1; $MutElapsed = $2;
2304 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2305 $GcTime = $1; $GcElapsed = $2;
2308 close(STATS) || die "Failed when closing $StatsFile\n";
2309 if ( $tot_samples > 0 ) {
2310 $ResidencySamples = $tot_samples;
2311 $MaxResidency = $max_live;
2312 $AvgResidency = int ($tot_live / $tot_samples) ;
2315 # warn about what we didn't find
2316 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2317 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2318 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2319 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2320 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2321 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2322 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2323 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2325 # things we didn't necessarily expect to find
2326 $MaxResidency = 0 unless defined($MaxResidency);
2327 $AvgResidency = 0 unless defined($AvgResidency);
2328 $ResidencySamples = 0 unless defined($ResidencySamples);
2331 $BytesAlloc =~ s/,//g;
2332 $MaxResidency =~ s/,//g;
2334 $InitTime =~ s/,//g;
2335 $InitElapsed =~ s/,//g;
2337 $MutElapsed =~ s/,//g;
2339 $GcElapsed =~ s/,//g;
2341 # print out what we found
2342 print STDERR "<<$SysSpecificTiming: ",
2343 "$BytesAlloc bytes, $GCs GCs, $AvgResidency/$MaxResidency avg/max bytes residency ($ResidencySamples samples), $InitTime INIT ($InitElapsed elapsed), $MutTime MUT ($MutElapsed elapsed), $GcTime GC ($GcElapsed elapsed)",
2344 " :$SysSpecificTiming>>\n";
2351 %************************************************************************
2353 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2355 %************************************************************************
2359 local($to_do) = "\n$Rm $Tmp_prefix*";
2360 if ( $Tmp_prefix !~ /^\s*$/ ) {
2361 print STDERR "$to_do\n" if $Verbose;
2366 sub tidy_up_and_die {
2367 local($return_val, $msg) = @_;
2369 # delete any files to tidy
2370 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2371 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2375 exit (($return_val == 0) ? 0 : 1);
2379 %************************************************************************
2381 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2383 %************************************************************************
2385 Some command-line arguments take an argument, e.g.,
2386 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2387 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2388 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2390 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2391 gobble the second argument (and probably set the heapsize to something
2395 local(*Args, $option, $rest_of_arg) = @_;
2397 if ($rest_of_arg ne '') {
2398 return($rest_of_arg);
2399 } elsif ($#Args >= 0) {
2400 local($temp) = $Args[0]; shift(@Args);
2403 print STDERR "$Pgm: no argument following $option option\n";
2414 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2416 foreach $f ( @HsC_antiflags ) {
2417 return(0) if $flag eq $f;
2419 # foreach $f ( @HsC_flags ) {
2420 # return(0) if $flag eq $f;
2425 sub squashHscFlag { # pretty terrible
2429 foreach $f ( @HsC_flags ) {
2430 if ($flag eq $f) { $f = ''; }
2438 foreach $f ( @flags ) {
2439 push( @HsC_flags, $f ) if &isntAntiFlag($f);
2446 local($syslib) = @_;
2448 unshift(@SysImport_dir,
2449 $INSTALLING ? "$InstLibDirGhc/imports/$syslib"
2450 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/$syslib");
2452 push(@SysLibrary_dir,
2453 $INSTALLING ? ("$InstLibDirGhc")
2454 : ("$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/$syslib",
2455 "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/$syslib/cbits"));
2457 push(@SysLibrary, "-lHS$syslib");
2458 push(@SysLibrary, "-lHS${syslib}_cbits")
2459 unless $syslib eq 'contrib' || $syslib eq 'exts' || $syslib eq 'concurrent';
2460 #HACK! they have no cbits
2464 Source files may have {-# OPTIONS ... #-} pragmas at the top, containing
2465 command line options we want to append to collection of commands specified
2466 directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell
2467 file for any such pragmas:
2470 sub check_for_source_options {
2471 local($file,$ifile) = @_;
2472 local($comment_start,$comment_end);
2474 if ($ifile =~ /\.hc$/ ||
2477 $ifile =~ /_s$/ ) { # `Real' C intermediate
2478 $comment_start = "/\\*";
2479 $comment_end = "\\*/";
2480 } else { # Assume it is a file containing Haskell source
2481 $comment_start = "{-#";
2482 $comment_end = "#-}";
2485 open(FILE,$file) || return(1); # No big loss
2488 if ( /^${comment_start} OPTIONS (.*)${comment_end}$/ ) {
2489 # add the options found at the back of the command line.
2490 local(@entries) = split(/\s+/,$1);
2491 print STDERR "Found OPTIONS " . join(' ',@entries) . " in $file\n" if $Verbose;
2492 push(@File_options, @entries);
2494 elsif ( /^$/ ) { # ignore empty lines
2497 elsif ( /^#line.+$/ ) { # ignore comment lines (unused..ToDo: rm )
2500 elsif ( /^{-# LINE.+$/ ) { # ignore line pragmas
2503 else { # stop looking, something non-empty / not
2504 # ${comment_start} OPTIONS .. ${comment_end} encountered.
2505 close(FILE);return(0);
2514 We split the initial argv up into three arrays:
2520 the reason for doing so is to be able to deal
2521 with {-# OPTIONS #-} pragma in source files properly.
2527 arg: while($_ = $args[0]) {
2529 # sigh, we have to deal with these -option arg specially here.
2530 /^-(tmpdir|odir|ohi|o|isuf|osuf|hisuf|hisuf-prelude|odump|syslib)$/ &&
2531 do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; };
2532 /^--?./ && do { push(@Cmd_opts, $_); next arg; };
2534 if (/\.([^_]+_)?[oa]$/) {
2535 push(@Link_file, $_);
2537 push(@Input_file, $_);
2540 # input files must exist:
2542 print STDERR "$Pgm: input file doesn't exist: $_\n";
2550 When saving an intermediate file (.hc or .s) away, we
2551 have to prefix any OPTIONS found in the original source file.
2554 sub saveIntermediate {
2555 local ($final,$suffix,$tmp)= @_ ;
2558 # $final -- root of where to park ${final}.${suffix}
2559 # $tmp -- temporary file where hsc put the intermediate file.
2561 # Delete the old file
2562 $to_do = "$Rm ${final}.${suffix}"; &run_something($to_do, "Removing old .${suffix} file");
2564 if ( $#File_options >= 0 ) { # OPTIONS found in Haskell source unit
2565 # Add OPTION comment to the top of the generated .${suffix} file
2566 open(TEMP, "> ${final}.${suffix}") || &tidy_up_and_die(1,"Can't open ${final}.${suffix}\n");
2567 print TEMP "/* OPTIONS " . join(' ',@File_options) . " */\n";
2569 print STDERR "Prepending OPTIONS: " . join(' ',@File_options) . " to ${final}.${suffix}\n" if $Verbose;
2571 $to_do = "$Cat $tmp >> ${final}.${suffix}";
2572 &run_something($to_do, "Saving copy of .${suffix} file");
2579 Command-line processor
2585 # can't use getopt(s); what we want is too complicated
2587 arg: while($_ = $Args[0]) {
2590 #---------- help -------------------------------------------------------
2591 if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; }
2593 #-----------version ----------------------------------------------------
2594 /^--version$/ && do { print STDERR "${ProjectName}, version ${ProjectVersion}, patchlevel ${ProjectPatchLevel}\n"; exit $Status; };
2596 #---------- verbosity and such -----------------------------------------
2597 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
2599 #---------- what phases are to be run ----------------------------------
2600 /^-(no-)?recomp/ && do { $Do_recomp_chkr = ($1 eq '') ? 1 : 0; next arg; };
2602 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
2603 # change the global default:
2604 # we won't run cat; we'll run the real thing
2606 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
2608 # stop after generating C
2610 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
2611 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
2613 # leave out actual C generation (debugging) [also turns off interface gen]
2616 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
2617 # _do_ generate an interface; usually used as: -noC -hi
2618 /^-hi-with-(.*)$/ && do { $HiOnStdout = 1; $HiWith .= " $1" ; $ProduceHi = '-hifile='; next arg; };
2619 # limit ourselves to outputting a particular section.
2621 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
2622 # don't generate an interface (even if generating C)
2624 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
2625 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
2626 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
2627 /^-keep-hi-diffs$/ && do { $Keep_HiDiffs = 1; next arg; };
2629 # show/disable diffs if the interface file changes
2631 /^-E$/ && do { push(@CcBoth_flags, '-E');
2632 $Only_preprocess_C = 1;
2633 $Do_as = 0; $Do_lnkr = 0; next arg; };
2634 # stop after preprocessing C
2635 /^-M$/ && do { $Only_generate_deps = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2636 # only generate dependency information.
2637 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
2638 # stop after generating assembler
2640 /^-c$/ && do { $Do_lnkr = 0; next arg; };
2641 # stop after generating .o files
2643 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
2644 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
2645 # don't do consistency-checking after a link
2647 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', '');
2648 $Tmp_prefix = "$Tmp_prefix/ghc$$";
2649 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
2651 # use an alternate directory for temp files
2653 #---------- redirect output --------------------------------------------
2655 # -o <file>; applies to the last phase, whatever it is
2656 # "-o -" sends it to stdout
2657 # if <file> has a directory component, that dir must already exist
2659 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', '');
2661 # Hack, of the worst sort: don't do validation of
2662 # odir argument if you're using -M (dependency generation).
2664 if ( ! $Only_generate_deps && ! -d $Specific_output_dir) {
2665 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
2670 /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', '');
2671 if ($Specific_output_file ne '-'
2672 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
2673 local($dir_part) = $1;
2674 if (! -d $dir_part) {
2675 print STDERR "$Pgm: no such directory: $dir_part\n";
2681 # NB: -isuf not documented yet (because it doesn't work yet)
2682 /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', '');
2683 if ($Isuffix =~ /\./ ) {
2684 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
2689 /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', '');
2690 if ($Osuffix =~ /\./ ) {
2691 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
2696 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
2697 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', '');
2698 if ($Specific_hi_file ne '-'
2699 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
2700 local($dir_part) = $1;
2701 if (! -d $dir_part) {
2702 print STDERR "$Pgm: no such directory: $dir_part\n";
2708 # The suffix to use when looking for interface files
2709 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', '');
2710 if ($HiSuffix =~ /\./ ) {
2711 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
2715 # ToDo: remove, not a `normal' user thing to do (should be automatic)
2716 /^-hisuf-prelude$/ && do { $HiSuffix_prelude = &grab_arg_arg(*Args,'-hisuf-prelude', '');
2717 if ($HiSuffix =~ /\./ ) {
2718 print STDERR "$Pgm: -hisuf-prelude suffix shouldn't contain a .\n";
2722 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', '');
2723 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
2724 local($dir_part) = $1;
2725 if (! -d $dir_part) {
2726 print STDERR "$Pgm: no such directory: $dir_part\n";
2732 #-------------- scc & Profiling Stuff ----------------------------------
2734 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
2737 # generate auto SCCs on top level bindings
2738 # -auto-all = all top level bindings
2739 # -auto = only top level exported bindings
2740 $PROFauto = ( /-all/ )
2741 ? '-fauto-sccs-on-all-toplevs'
2742 : '-fauto-sccs-on-exported-toplevs';
2745 /^-caf-all/ && do { # generate individual CAF SCC annotations
2746 $PROFcaf = '-fauto-sccs-on-individual-cafs';
2749 /^-ignore-scc$/ && do {
2750 # forces ignore of scc annotations even if profiling
2751 $PROFignore_scc = '-W';
2754 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
2757 /^-unprof-scc-auto/ && do {
2758 # generate auto SCCs on top level bindings when not profiling.
2759 # Used to measure optimisation effects of presence of sccs.
2760 $UNPROFscc_auto = ( /-all/ )
2761 ? '-fauto-sccs-on-all-toplevs'
2762 : '-fauto-sccs-on-exported-toplevs';
2765 #--------- ticky/concurrent/parallel -----------------------------------
2766 # we sort out the details a bit later on
2768 /^-concurrent$/ && do { $CONCURing = 'c'; &add_syslib('concurrent'); next arg; };
2769 # concurrent Haskell; implies -syslib conc
2770 /^-gransim$/ && do { $GRANing = 'g'; next arg; }; # GranSim
2771 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
2772 /^-parallel$/ && do { $PARing = 'p'; next arg; }; # parallel Haskell
2774 #-------------- "user ways" --------------------------------------------
2776 (/^-user-setup-([a-oA-Z])$/ ) &&
2778 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
2780 local($stuff) = $UserSetupOpts{$BuildTag};
2781 local(@opts) = split(/\s+/, $stuff);
2783 # feed relevant ops into the arg-processing loop (if any)
2784 unshift(@Args, @opts) if $#opts >= 0;
2788 #---------- set search paths for libraries and things ------------------
2790 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
2791 # prepends the items to the list); -I is for including C .h files.
2793 /^-i$/ && do { @Import_dir = (); # import path cleared!
2794 @SysImport_dir = ();
2795 print STDERR "WARNING: import paths cleared by `-i'\n";
2798 /^-i(.*)/ && do { local(@new_items)
2799 = split( /:/, &grab_arg_arg(*Args,'-i', $1));
2800 unshift(@Import_dir, @new_items);
2803 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; };
2804 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; };
2805 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; };
2807 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1);
2808 print STDERR "$Pgm: no such system library (-syslib): $syslib\n",
2809 $Status++ unless $syslib =~ /^(exts|misc|posix)$/;
2812 # The posix library is a `special' in that it relies on
2813 # the ghc system library (packed strings). Wielding our
2814 # sledgehammer, the problem is solved by silently including
2815 # the ghc system library as well.
2816 # (ToDo: `nub' -syslib list)
2818 &add_syslib($syslib);
2819 if ( $syslib eq 'posix' ) {
2820 &add_syslib('misc');
2821 } elsif ( $syslib eq 'misc' &&
2822 $TargetName =~ /-solaris2$/ ) {
2823 # needed for Berkeley socket/nwork stuff.
2824 push(@SysLibrary, '-lnsl');
2828 #=======================================================================
2829 # various flags that we can harmlessly send to one program or another
2830 # (we will later "reclaim" some of the compiler ones now sent to gcc)
2831 #=======================================================================
2833 #---------- this driver itself (ghc) -----------------------------------
2834 # these change what executable is run for each phase:
2835 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
2836 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
2837 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
2838 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
2839 /^-pgma(.*)$/ && do { $As = $1; next arg; };
2840 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
2841 /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; };
2843 #---------- the get-anything-through opts (all pgms) -------------------
2844 # these allow arbitrary option-strings to go to any phase:
2845 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
2846 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
2847 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
2848 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
2849 /^-optp(.*)$/ && do { push(@HsP_flags, $1); next arg; };
2850 /^-optcpp(.*)$/ && do { push(@Cpp_define, $1); $Only_preprocess_hc = ($1 eq "-E"); next arg; };
2851 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
2852 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
2853 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
2854 /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; };
2856 #---------- Haskell C pre-processor (hscpp) ----------------------------
2857 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; };
2858 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; };
2860 #---------- post-Haskell "assembler"------------------------------------
2861 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
2862 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
2864 #---------- Haskell compiler (hsc) -------------------------------------
2866 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
2867 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
2869 /^-fhaskell-1\.3$/ && do { next arg; }; # a no-op right now
2871 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
2873 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
2874 # don't do stack checking using page fault `trick'.
2876 /^-fstack-check$/ && do { $StkChkByPageFaultOK = 0; next arg; };
2878 # have the compiler proper generate concurrent code,
2879 # really only used when you want to configure your own
2880 # special user compilation way. (Use -concurrent when
2881 # compiling `Concurrent Haskell' programs).
2883 # (ditto for -fgransim, fscc-profiling and -fticky-ticky)
2885 /^-fconcurrent$/ && do { push(@HsC_flags,$_); next arg; };
2886 /^-fscc-profiling$/ && do { push(@HsC_flags,$_); next arg; };
2887 /^-fticky-ticky$/ && do { push(@HsC_flags,$_); next arg; };
2888 /^-fgransim$/ && do { push(@HsC_flags,$_); next arg; };
2890 /^-split-objs/ && do {
2891 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|rs6000|sparc)-/ ) {
2893 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
2898 push(@HsC_flags, "-fglobalise-toplev-names");
2899 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
2901 require('ghc-split.prl')
2902 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
2907 && do { push(@HsC_flags, $_);
2908 push(@HsP_flags, '-N');
2910 # push(@HsC_flags, '-fshow-import-specs');
2912 # -fglasgow-exts implies -syslib exts
2913 &add_syslib('exts');
2917 /^-fspeciali[sz]e-unboxed$/
2918 && do { $Oopt_DoSpecialise = '-fspecialise';
2919 $Oopt_SpecialiseUnboxed = '-fspecialise-unboxed';
2922 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
2923 /^-fno-speciali[sz]e$/
2924 && do { $Oopt_DoSpecialise = ''; next arg; };
2927 # Now the foldr/build options, which are *on* by default (for -O).
2930 && do { $Oopt_FoldrBuild = 1;
2931 $Oopt_FB_Support = '-fdo-arity-expand';
2935 /^-fno-foldr-build$/
2936 && do { $Oopt_FoldrBuild = 0;
2937 $Oopt_FB_Support = '';
2940 /^-fno-foldr-build-rule$/
2941 && do { $Oopt_FoldrBuild = 0;
2944 /^-fno-enable-tech$/
2945 && do { $Oopt_FB_Support = '';
2948 /^-fno-snapback-to-append$/
2949 && do { $Oopt_FoldrBuildInline .= ' -fdo-not-fold-back-append ';
2952 # --------------- Renamer -------------
2955 /^-fno-prune-tydecls$/ && do { push(@HsC_flags, $_); next arg; };
2956 /^-fno-prune-instdecls$/ && do { push(@HsC_flags, $_); next arg; };
2960 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
2961 /^-fvia-[cC]$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
2965 /^(-funfolding-use-threshold)(.*)$/
2966 && do { $Oopt_UnfoldingUseThreshold = $1 . &grab_arg_arg(*Args,$1, $2);
2969 /^(-fmax-simplifier-iterations)(.*)$/
2970 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2);
2972 /^(-fshow-simplifier-progress)/
2973 && do { $Oopt_ShowSimplifierProgress = $1;
2976 /^-fno-pedantic-bottoms$/
2977 && do { $Oopt_PedanticBottoms = ''; next arg; };
2979 /^-fdo-monad-eta-expansion$/
2980 && do { $Oopt_MonadEtaExpansion = $_; next arg; };
2982 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
2983 && do { push(@HsC_flags, $_); next arg; };
2985 /^(-freturn-in-regs-threshold)(.*)$/
2986 && do { local($what) = $1;
2987 local($num) = &grab_arg_arg(*Args,$what, $2);
2988 if ($num < 2 || $num > 8) {
2989 die "Bad experimental flag: $_\n";
2991 $HscOut = '-C='; # force using C compiler
2992 push(@HsC_flags, "$what$num");
2993 push(@CcRegd_flags, "-D__STG_REGS_AVAIL__=$num");
2997 # --------------- Warnings etc. ------
2999 /^-fshow-import-specs/
3000 && do { push(@HsC_flags, $_); next arg; };
3002 /^-fsignatures-required/
3003 && do { push(@HsC_flags, $_); next arg; };
3005 /^-fwarn-(.*)$/ && do { push(@HsC_flags, $_); next arg; };
3007 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
3008 &squashHscFlag("-f$1");
3011 /^-W$/ && do { push(@HsC_flags, @MinusWOpts); next arg; };
3012 /^-Wall$/ && do { push(@HsC_flags, @MinusWallOpts); next arg; };
3013 /^(-Wnot|w)$/ && do { foreach (@Hsc_flags) {
3014 /^-fwarn-(.*)$/ && do { $_=''; };
3016 push(@HsC_antiflags, @StandardWarnings);
3019 # --------------- platform specific flags (for gcc mostly) ----------------
3021 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes,
3022 # for 2.6.x..?, does not apply for 2.7.2
3024 unshift(@CcBoth_flags, ( $_ ));
3027 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
3028 && do { # for GCC for SPARCs
3029 unshift(@CcBoth_flags, ( $_ ));
3032 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
3033 $StolenX86Regs = $1;
3036 #*************** ... and lots of debugging ones (form: -d* )
3038 # -d(no-)core-lint is done this way so it is turn-off-able.
3039 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
3040 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
3041 # Ditto for STG lint
3042 /^-dstg-lint/ && do { $StgLint = '-dstg-lint'; next arg; };
3043 /^-dno-stg-lint/ && do { $StgLint = ''; next arg; };
3045 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
3046 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
3047 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
3048 /^-dshow-rn-stats/ && do { push(@HsC_flags, $_); next arg; };
3049 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
3050 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
3051 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
3052 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
3054 #*************** ... and now all these -R* ones for its runtime system...
3056 /^-Rscale-sizes?(.*)/ && do {
3057 $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1);
3060 /^(-H|-Rmax-heapsize)(.*)/ && do {
3061 local($heap_size) = &grab_arg_arg(*Args,$1, $2);
3062 if ($heap_size =~ /(\d+)[Kk]$/) {
3063 $heap_size = $1 * 1000;
3064 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
3065 $heap_size = $1 * 1000 * 1000;
3066 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
3067 $heap_size = $1 * 1000 * 1000 * 1000;
3069 if ($heap_size <= 0) {
3070 print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n";
3071 $Specific_heap_size = 0;
3073 # if several heap sizes given, take the largest...
3074 } elsif ($heap_size >= $Specific_heap_size) {
3075 $Specific_heap_size = $heap_size;
3077 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n";
3081 /^(-K|Rmax-(stk|stack)size)(.*)/ && do {
3083 local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3);
3084 if ($stk_size =~ /(\d+)[Kk]$/) {
3085 $stk_size = $1 * 1000;
3086 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
3087 $stk_size = $1 * 1000 * 1000;
3088 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
3089 $stk_size = $1 * 1000 * 1000 * 1000;
3091 if ($stk_size <= 0) {
3092 print STDERR "$Pgm: resetting stack-size to zero!!! $stk_size\n";
3093 $Specific_stk_size = 0;
3095 # if several stack sizes given, take the largest...
3096 } elsif ($stk_size >= $Specific_stk_size) {
3097 $Specific_stk_size = $stk_size;
3099 print STDERR "$Pgm: ignoring stack-size-setting option ($flag $stk_size)...not the largest seen\n";
3103 /^-Rgc-stats$/ && do { $CollectingGCstats++;
3104 # the two RTSs do this diff ways; we will try to compensate
3107 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
3109 #---------- C high-level assembler (gcc) -------------------------------
3110 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
3112 # -dgcc-lint is a useful way of making GCC very fussy.
3113 # From alan@spri.levels.unisa.edu.au (Alan Modra).
3114 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
3115 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
3116 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
3118 # inject "#include <wurble>" into the compiler's C output!
3120 /^-#include(.*)/ && do {
3121 local($to_include) = &grab_arg_arg(*Args,'-#include', $1);
3122 push(@CcInjects, "#include $to_include\n");
3125 #---------- Linker (gcc, really) ---------------------------------------
3127 /^-static$/ && do { push(@Ld_flags, $_); next arg; };
3129 #---------- mixed cc and linker magic ----------------------------------
3130 # this optimisation stuff is finally sorted out later on...
3132 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
3134 /^-O[1-2]?$/ && do {
3135 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
3136 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
3138 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
3141 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
3143 /^-Ofile(.*)/ && do {
3145 local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1);
3146 @HsC_minusO3_flags = ();
3148 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
3151 s/\#.*//; # death to comments
3152 s/[ \t]+//g; # death to whitespace
3153 next if /^$/; # ditto, blank lines
3154 s/([()*{}])/\\$1/g; # protect shell metacharacters
3156 push(@CcBoth_flags, $1);
3158 push(@HsC_minusO3_flags, $_);
3164 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
3165 # in the consistency info
3169 #---------- linking .a file --------------------------------------------
3171 /^-Main(.*)/ && do {
3172 # specifies main or mainPrimIO to be linked
3176 #---------- catch unrecognized flags -----------------------------------
3179 print STDERR "$Pgm: unrecognised option: $_\n";
3185 } # end of processArgs