1 % (c) The GRASP/AQUA Project, Glasgow University, 1992-1997
4 This is the driver script for the Glasgow Haskell compilation system.
5 It is written in \tr{perl}. The first section includes a long
6 ``usage'' message that describes how the driver is supposed to work.
8 %************************************************************************
10 \section[Driver-usage]{Usage message}
12 %************************************************************************
15 ($Pgm = $0) =~ s|.*/||;
16 $ShortUsage = "\nUsage: For basic information, try the `-help' option.\n";
17 $LongUsage = "\n" . <<EOUSAGE;
18 Use of the Glorious Haskell Compilation System driver:
20 $Pgm [command-line-options-and-input-files]
22 ------------------------------------------------------------------------
23 This driver ($Pgm) guides each input file through (some of the)
24 possible phases of a compilation:
26 - unlit: extract code from a "literate program"
27 - hscpp: run code through the C pre-processor (if -cpp flag given)
28 - hsc: run the Haskell compiler proper
29 - gcc: run the C compiler (if compiling via C)
30 - as: run the assembler
33 For each input file, the phase to START with is determined by the
35 - .lhs literate Haskell: unlit
36 - .hs illiterate Haskell: hsc
37 - .hc C from the Haskell compiler: gcc
38 - .c C not from the Haskell compiler: gcc
39 - .s assembly language: as
40 - other passed directly to the linker: ld
42 If no files are given on the command line, input is taken from
43 standard input, and processing is as for an .hs file. (All output is
44 to stdout or stderr, however).
46 The phase at which to STOP processing is determined by a command-line
48 -E stop after generating preprocessed, de-litted Haskell (used in conjunction with -cpp)
49 -C stop after generating C (.hc output)
50 -S stop after generating assembler (.s output)
51 -c stop after generating object files (.o output)
53 Other commonly-used options are:
55 -O An `optimising' package of compiler flags, for faster code
57 -prof Compile for cost-centre profiling
58 (add -auto for automagic cost-centres on top-level functions)
60 -fglasgow-exts Allow Glasgow extensions (unboxed types, etc.)
62 -H14m Increase compiler's heap size
64 -M Output the Makefile rules recording the
65 dependencies of a list of Haskell files.
66 (ghc driver script calls upon the help of a
67 compatible mkdependHS script to do the actual
70 The User's Guide has more information about GHC's *many* options.
72 Given the above, here are some TYPICAL invocations of $Pgm:
74 # compile a Haskell module to a .o file, optimising:
76 # link three .o files into an executable called "test":
77 % $Pgm -o test Foo.o Bar.o Baz.o
78 # compile a Haskell module to C (a .hc file), using a bigger heap:
79 % $Pgm -C -H16m Foo.hs
80 # compile Haskell-produced C (.hc) to assembly language:
82 ------------------------------------------------------------------------
86 %************************************************************************
88 \section[Driver-init]{Initialisation}
90 %************************************************************************
92 The driver script need to be told where to find these executables, so
93 in the course of building the driver `executable', make-variables holding
94 these are prepended to the de-litted version of this file. The variables are:
99 HOSTPLATFORM TARGETPLATFORM
101 ProjectName ProjectVersion ProjectVersionInt ProjectPatchLevel
103 HscMajorVersion HscMinorVersion CcMajorVersion CcMinorVersion
107 bindir libdir libexecdir datadir
111 GHC_LIB_DIR GHC_RUNTIME_DIR GHC_UTILS_DIR GHC_INCLUDE_DIR
113 GHC_OPT_HILEV_ASM GhcWithNativeCodeGen
115 GHC_UNLIT GHC_HSCPP GHC_HSC GHC_SYSMAN
119 WAY_*_NAME WAY_*_REAL_OPTS
125 Establish what executables to run for the various phases, what the
126 default options are for those phases, and other similar boring stuff.
129 select(STDERR); $| = 1; select(STDOUT); # no STDERR buffering, please.
131 $TargetPlatform = $TARGETPLATFORM;
133 $TopPwd = "${TOP_PWD}";
134 $InstBinDirGhc = "${bindir}";
135 $InstLibDirGhc = "${libdir}";
137 # Normally the same as InstLibDirGhc, but we accommodate
138 # for it being separate.
140 $InstLibExecDirGhc = "${libexecdir}";
141 $InstDataDirGhc = "${datadir}";
143 $Status = 0; # just used for exit() status
146 # set up signal handler
147 sub quit_upon_signal { &tidy_up_and_die(1, ''); }
148 $SIG{'INT'} = 'quit_upon_signal';
149 $SIG{'QUIT'} = 'quit_upon_signal';
151 # where to get "require"d .prl files at runtime (poor man's dynamic loading)
152 # (use LIB, not DATA, because we can't be sure of arch-independence)
153 @INC = ( ( $INSTALLING ) ? $InstLibDirGhc
154 : "$TopPwd/${CURRENT_DIR}" );
156 if ( $ENV{'TMPDIR'} ) { # where to make tmp file names
157 $Tmp_prefix = ($ENV{'TMPDIR'} . "/ghc$$");
159 print STDERR "TMPDIR has not been set to anything useful!\n" if (${TMPDIR} eq '');
160 $Tmp_prefix ="${TMPDIR}/ghc$$"; # TMPDIR set via Makefile when booting..
161 $ENV{'TMPDIR'} = ${TMPDIR}; # set the env var as well
164 # Some shells run into real trouble when command line and environment
165 # gets big (e.g., cmd lines of >4K to /bin/sh causes havoc on our
166 # Solaris-2.5.1 boxes - even though sysconf(_SC_ARG_MAX) reports 1M ...).
167 # To work around any such */bin/sh* problems, we will scribble such
168 # awfully long command lines into a temp file and exec that temp file
169 # with $(REAL_SHELL) (don't use the SHELL variable directly as this
170 # will normally get you the wrong thing when the driver is invoked
171 # from within `make'). If the REAL_SHELL variable isn't set, you'll
172 # get SHELL. This is all a terrible hack. (in case you hadn't reached
173 # the same conclusion by now :-)
177 if ( ! $ENV{'REAL_SHELL'} ) {
178 $ENV{'REAL_SHELL'} = $ENV{'SHELL'};
181 @Files_to_tidy = (); # files we nuke in the case of abnormal termination
183 $Unlit = ( $INSTALLING ) ? "$InstLibExecDirGhc/unlit"
184 : "$TopPwd/${CURRENT_DIR}/${GHC_UNLIT}";
188 $Diff = $CONTEXT_DIFF;
193 $HsCpp = # but this is re-set to "cat" (after options) if -cpp not seen
194 ( $INSTALLING ) ? "$InstLibExecDirGhc/hscpp"
195 : "$TopPwd/${CURRENT_DIR}/${GHC_HSCPP}";
198 $HsC = ( $INSTALLING ) ? "$InstLibExecDirGhc/hsc"
199 : "$TopPwd/${CURRENT_DIR}/${GHC_HSC}";
201 # For PVM fiends only
202 $SysMan = ( $INSTALLING ) ? "$InstLibExecDirGhc/SysMan"
203 : "$TopPwd/${CURRENT_DIR}/${GHC_SYSMAN}";
208 # HsC_rts_flags: if we want to talk to the LML runtime system
209 # NB: we don't use powers-of-2 sizes, because this may do
210 # terrible things to cache behavior.
212 $Specific_heap_size = 6 * 1000 * 1000;
213 $Specific_stk_size = 1000 * 1000;
214 $Scale_sizes_by = 1.0;
218 The variables set by @setupOptFlags@ represent parts of the
219 -O/-O2/etc ``templates,'' which are filled in later, using these.
220 These are the default values, which may be changed by user flags.
224 $Oopt_MaxSimplifierIterations = '-fmax-simplifier-iterations4';
225 $Oopt_PedanticBottoms = '-fpedantic-bottoms'; # ON by default
226 $Oopt_FinalStgProfilingMassage = '';
228 $Oopt_DoSpecialise = '-fspecialise';
229 $Oopt_FoldrBuild = 0; # *Off* by default!
230 $Oopt_UsageSPInf = ''; # Off by default
231 } # end of setupOptFlags
233 # Assign defaults to these right away.
237 Things to do with C compilers/etc:
239 (added -Wimplicit: implicit prototypes cause very hard-to-find
240 problems, so I'm turing on the warnings -- SDM 4/5/98)
243 $CcRegd = $GHC_OPT_HILEV_ASM;
244 @CcBoth_flags = ('-S','-Wimplicit'); # flags for *any* C compilation
248 # those for all files,
249 # those only for .c files;
250 # those only for .hc files
253 @CcRegd_flags_c = ();
254 @CcRegd_flags_hc = ();
256 $As = ''; # "assembler" is normally GCC
259 $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-type-defaults',
288 '-fwarn-name-shadowing',
289 '-fwarn-missing-signatures');
292 What options \tr{-user-setup-a} turn into (user-defined ``packages''
294 of options). Note that a particular user-setup implies a particular
295 Prelude ({\em including} its interface file(s)).
297 $BuildTag = ''; # default is sequential build w/ Appel-style GC
299 %BuildDescr = (# system ways begin
300 '', 'Normal Sequential',
302 '_t', "Ticky-ticky Profiling",
303 '_u', "Unregisterised",
323 '_B', "$WAY_B_NAME" );
325 # these are options that are "fed back" through the option processing loop
329 '_a', "$WAY_a_REAL_OPTS",
330 '_b', "$WAY_b_REAL_OPTS",
331 '_c', "$WAY_c_REAL_OPTS",
332 '_d', "$WAY_d_REAL_OPTS",
333 '_e', "$WAY_e_REAL_OPTS",
334 '_f', "$WAY_f_REAL_OPTS",
335 '_g', "$WAY_g_REAL_OPTS",
336 '_h', "$WAY_h_REAL_OPTS",
337 '_i', "$WAY_i_REAL_OPTS",
338 '_j', "$WAY_j_REAL_OPTS",
339 '_k', "$WAY_k_REAL_OPTS",
340 '_l', "$WAY_l_REAL_OPTS",
341 '_m', "$WAY_m_REAL_OPTS",
342 '_n', "$WAY_n_REAL_OPTS",
343 '_o', "$WAY_o_REAL_OPTS",
344 '_A', "$WAY_A_REAL_OPTS",
345 '_B', "$WAY_B_REAL_OPTS",
348 '_p', "-fscc-profiling -DPROFILING -optc-DPROFILING",
349 '_t', "-fticky-ticky -DTICKY_TICKY -optc-DTICKY_TICKY",
350 '_u', "-optc-DNO_REGS -optc-DUSE_MINIINTERPRETER -fno-asm-mangling -funregisterised",
351 '_mp', "-fstack-check -fparallel -D__PARALLEL_HASKELL__ -optc-DPAR",
352 '_mg', "-fstack-check -fconcurrent -fgransim -D__GRANSIM__ -D__CONCURRENT_HASKELL__ -optc-DCONCURRENT -optc-DGRAN");
356 Import/include directories (\tr{-I} options) are sufficiently weird to
357 require special handling.
360 @Import_dir = ('.'); #-i things
361 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
363 # where to look for interface files (system hi's, i.e., prelude and syslibs)
364 @SysImport_dir = ( $INSTALLING )
365 ? ( "$InstLibDirGhc/imports/std" )
366 : ( "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std" );
368 # We need to look in ghc/ and glaExts/ when searching for implicitly needed .hi files, but
369 # we should really *not* look there for explicitly imported modules.
371 $Haskell1Version = 5; # i.e., Haskell 1.4
374 # Cpp symbols defined when we're processing Haskell source.
377 ( "-D__HASKELL1__=$Haskell1Version"
378 , "-D__GLASGOW_HASKELL__=$ProjectVersionInt"
380 , "-D__CONCURRENT_HASKELL__"
383 @UserLibrary_dir= (); #-L things;...
384 @UserLibrary = (); #-l things asked for by the user
386 @SysLibrary_dir = ( ( $INSTALLING ) #-syslib things supplied by the system
388 : ( "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR"
389 , "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/gmp"
390 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std"
391 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std/cbits"
394 @SysLibrary = (); # will be built up as we go along
396 $TopClosureFile # defaults to 1.2 one; will be mangled later
398 # ( $INSTALLING) ? "$InstLibDirGhc/TopClosureXXXX.o"
399 # : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/main/TopClosureXXXX.o";
401 # make depend for Haskell
403 = ( $INSTALLING ) ? "$InstLibExecDirGhc/mkdependHS"
404 : "$TopPwd/$CURRENT_DIR/$GHC_UTILS_DIR/mkdependHS/mkdependHS";
406 @MkDependHS_flags = ();
408 # do_link flag should not be reset while rescanning the cmd-line.
410 $Specific_output_dir = ''; # set by -odir <dir>
411 $Specific_output_file = ''; # set by -o <file>; "-" for stdout
414 Function to initialise the per-compilation-unit globals that
415 are used to guide and control the invocation of the different phases.
418 sub initDriverGlobals {
420 # reset the following options:
421 # RTS flags to use while compiling
423 @HsP_flags = (); # these are the flags destined solely for
424 # the flex/yacc parser
429 The optimisations/etc to be done by the compiler are {\em normally}
430 expressed with a \tr{-O} (or \tr{-O2}) flag, or by its absence.
433 $OptLevel = 0; # no -O == 0; -O == 1; -O2 == 2; -Ofile == 3
434 $MinusO2ForC = 0; # set to 1 if -O2 should be given to C compiler
435 $StolenX86Regs = 4; # **HACK*** of the very worst sort
440 @Import_dir = ('.'); #-i things
441 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
446 We are given a list of files with various presumably-known suffixes
447 (unknown-suffix files go straight to the linker). For each file, we
448 begin by assuming that we'll run every phase over it. However: (1)
449 global flags (\tr{-c}, \tr{-S}, etc.) tell us not to run any phase
450 past a certain point; and (2) the file's suffix tells us what phase to
451 start with. Linking is weird and kept track of separately.
453 Here are the initial defaults applied to all files:
455 $Cpp_flag_set = 0; # (hack)
456 $Only_preprocess_C = 0; # pretty hackish
457 $Only_preprocess_hc = 0; # ditto
458 $Only_generate_deps = 0; # ""
459 $Only_generate_dll = 0;
460 $PostprocessCcOutput = 0;
463 # static = 0 => produce code for DLLs (when compiling & linking.)
465 $Static = 0 if ($EnableWin32DLLs eq 'YES');
467 # native code-gen or via C?
468 $HaveNativeCodeGen = $GhcWithNativeCodeGen;
469 $HscOut = '-C='; # '-C=' ==> .hc output; '-S=' ==> .s output; '-N=' ==> neither
471 if ($HaveNativeCodeGen ne 'YES') && $TargetPlatform =~ /^(alpha)-/;
472 # TEMP: disable x86 & Sparc if $HaveNativeCodeGen && $TargetPlatform =~ /^(i386|alpha|sparc)-/;
473 $ProduceHi = '-hifile=';
479 $CollectingGCstats = 0;
480 $CollectGhcTimings = 0;
481 $DEBUGging = ''; # -DDEBUG and all that it entails (um... not really)
482 $PROFing = ''; # set to p or e if profiling
483 $PROFgroup = ''; # set to group if an explicit -Ggroup specified
484 $PROFauto = ''; # set to relevant hsc flag if -auto or -auto-all
485 $PROFcaf = ''; # set to relevant hsc flag if -caf-all
486 $PROFdict = ''; # set to relevant hsc flag if -auto-dicts
487 $PROFignore_scc = ''; # set to relevant parser flag if explicit sccs ignored
488 $UNPROFscc_auto = ''; # set to relevant hsc flag if forcing auto sccs without profiling
489 $TICKYing = ''; # set to t if compiling for ticky-ticky profiling
490 $PARing = ''; # set to p if compiling for PAR
491 $GRANing = ''; # set to g if compiling for GRAN
492 $UNREGing = ''; # set to u if compiling unregisterised
493 $Specific_hi_file = ''; # set by -ohi <file>; "-" for stdout
494 $Specific_dump_file = ''; # set by -odump <file>; "-" for stdout
495 $Using_dump_file = 0;
497 $Osuffix = ''; # default: use the normal suffix for that kind of output
499 $HiSuffix_prelude = '';
501 $Do_recomp_chkr = 0; # don't use the recompilatio checker unless asked
502 $Do_cc = -1; # a MAGIC indeterminate value; will be set to 1 or 0.
505 $Keep_hc_file_too = 0;
506 $Keep_s_file_too = 0;
507 $UseGhcInternals = 0; # if 1, may use GHC* modules
509 $DoAsmMangling = 1; # on by default, off by -fno-asm-mangling
511 $Dump_parser_output = 0;
513 $Dump_asm_splitting_info = 0;
514 $NoImplicitPrelude = 0;
515 # 1 => don't tell the linker to hoist in PrelMain.Main, as an
516 # external main is provided instead.
519 } # end of initDriverGlobals (Sigh)
521 # we split the argv passed to the driver into three:
526 # and files to be linked...
532 # cmd line options prefixing the unit we're compiling
537 We inject consistency-checking information into \tr{.hc} files (both
538 when created by the Haskell compiler and when compiled by the C
539 compiler), so that we can check that an executable is made from
540 consistently-built pieces. (The check is normally done just after
541 linking.) The checking is done by introducing/munging
542 \tr{what(1)}-style strings. Anyway, here are the relevant global
543 variables and their defaults:
545 $LinkChk = 0; # set to 0 if the link check should *not* be done
547 # major & minor version numbers; major numbers must always agree;
548 # minor disagreements yield a warning.
549 $HsC_major_version = $HscMajorVersion;
550 $HsC_minor_version = $HscMinorVersion;
551 $Cc_major_version = $CcMajorVersion;
552 $Cc_minor_version = $CcMinorVersion;
554 # options: these must always agree
555 $HsC_consist_options = ''; # we record, in this order:
556 # Build tag; debugging?
557 $Cc_consist_options = ''; # we record, in this order:
558 # Build tag; debugging?
561 %************************************************************************
563 \section[Driver-parse-argv]{Munge the command-line options}
565 %************************************************************************
567 Now slurp through the arguments.
570 &initDriverGlobals();
571 &splitCmdLine(@ARGV);
572 # Run through the cmd-line first time.
573 &processArgs(@Cmd_opts);
575 # Check to see if driver is only in the business
576 # to generate dependencies
577 if ( $Status == 0 && $Only_generate_deps ) {
579 push (@MkDependHS_flags, "-o$Osuffix") if $Osuffix;
580 push (@MkDependHS_flags, "-s$BuildTag") if $BuildTag;
581 # They're not (currently) needed, but we need to quote any -#include options
582 foreach (@Cmd_opts) {
583 s/-#include.*$/'$&'/g;
585 local($to_do) = "$MkDependHS @MkDependHS_flags @HsSourceCppOpts -- @Cmd_opts -- @Input_file" ;
586 &run_something($to_do, 'Haskell dependencies');
590 # ..or just to construct a (Haskell) DLL.
591 if ( $Status == 0 && $Only_generate_dll && $EnableWin32DLLs ) {
597 # if there are several input files,
598 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
599 # (except if linking, of course)
601 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
602 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
603 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
604 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
605 print STDERR "\tPerhaps the -odir option will do what you want.\n";
610 # check for various pathological -o and -odir combinations...
611 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
612 if ($Specific_output_file eq '-') {
613 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
615 } else { # amalgamate...
616 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
617 # ToDo: check we haven't got a junk name now...
618 $Specific_output_dir = ''; # reset
622 # crash and burn if there were errors
624 print STDERR $ShortUsage;
629 %************************************************************************
631 \section[Driver-post-argv-mangling]{Setup after reading options}
633 %************************************************************************
635 %************************************************************************
637 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
639 %************************************************************************
641 We come now to the default ``wads of options'' that are turned on by
642 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
643 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
646 The user can also specify his/her own list of options in a file; in
647 that case, the work is already done (see stuff about @minusO3@,
650 GHC allows very precise control of what happens during a compilation.
651 Core-to-Core and STG-to-STG passes can be run in any order, as many
652 times as you like. Individual transformations can be turned on or
655 Sadly, however, there are some interdependencies \& Things You Must
656 Not Do. Here is the list.
660 \item[\tr{-fspecialise}:]
661 The specialiser must have dependency-analysed input; but if you run
662 the simplifier to do this, you must not let it toss away unused
663 bindings! (The typechecker conveys some specialisation info via
664 ``unused'' bindings...)
666 \item[\tr{-ffloat-inwards}:]
667 Floating inwards should be done before strictness analysis, because
668 the latter will give better results.
670 \item[\tr{-fstatic-args}:]
671 The static-arguments-transformation pass {\em must} have the
672 simplifier run right after it.
674 \item[\tr{-fcalc-inlinings[12]}:]
675 Not required, but there may be slight gains by re-simplifying after
676 this is done. (You could then \tr{-fcalc-inlinings} again, just for
679 \item[\tr{-ffull-laziness}:]
680 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
681 that's run. (Um, well, howzabout the simplifier just once more...)
686 \item[\tr{-fupdate-analysis}:]
687 It really really wants to be the last STG-to-STG pass that is run.
692 sub setupOptimiseFlags {
694 # this pass-ordering sequence was agreed by Simon and Andr\'e
695 # (WDP 94/07, 94/11).
702 $Oopt_MaxSimplifierIterations,
706 $Oopt_FinalStgProfilingMassage
709 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
713 '-fdo-eta-reduction',
715 '-fdo-lambda-eta-expansion',
719 $Oopt_PedanticBottoms,
721 # initial simplify: mk specialiser happy: minimum effort please
725 '-finline-phase1', # Don't inline rule Ids till specialisation has bitten
727 # APR 99: the stuff in this comment is now
728 # handled by -finline-phase1
730 # I don't understand why we want -fessential-unfoldings-only here
731 # If we have it, the following nasty thing happens:
735 # where "*" means exported.
736 # In the essential-unfoldings pass we still substitute f for g
737 # but we don't substitute E for f first. So we get
741 # The g=f will get reverse-substituted later, but it's untidy. --SLPJ
743 # SDM: Here's why it's necessary.
745 # If we unfold in the first pass before the specialiser is run
746 # we miss opportunities for specialisation because eg. wrappers
747 # have been inlined for specialisable functions.
749 # This shows up in PrelArr.lhs - the specialised instance for newArray
750 # calls the generic rangeSize, because rangeSize is strict and is
751 # replaced by its wrapper by the simplifier.
752 # '-fessential-unfoldings-only',
753 # '-fsimpl-uf-use-threshold0',
755 '-fmax-simplifier-iterations2',
758 ($Oopt_DoSpecialise) ? ( $Oopt_DoSpecialise, ) : (),
760 $Oopt_UsageSPInf, # infer usage information here in case we need it later.
761 # (add more of these where you need them --KSW 1999-04)
765 $Oopt_MaxSimplifierIterations,
767 # Still don't inline transformation rule Ids, to give the
768 # rules a good chance to fire
779 $Oopt_MaxSimplifierIterations,
788 $Oopt_MaxSimplifierIterations,
789 # No -finline-phase: allow all Ids to be inlined now
794 # Case-liberation for -O2. This should be after
795 # strictness analysis and the simplification which follows it.
799 # : "-fliberate-case -fsimplify [ $Oopt_FB_Support -ffloat-lets-exposing-whnf -ffloat-primops-ok -fcase-of-case -fdo-case-elim -fcase-merge -fdo-lambda-eta-expansion -freuse-con -flet-to-case $Oopt_PedanticBottoms $Oopt_MaxSimplifierIterations $Oopt_ShowSimplifierProgress ]" ),
801 # Final clean-up simplification:
805 $Oopt_MaxSimplifierIterations,
812 $Oopt_FinalStgProfilingMassage,
818 # SPECIAL FLAGS for -O2
820 '-fupdate-analysis', # virtually useless; relegated to -O2
827 Sort out what we're going to do about optimising. First, the @hsc@
828 flags and regular @cc@ flags to worry about:
830 if ( $OptLevel <= 0 ) {
832 # for this level, we tell the parser -fignore-interface-pragmas
833 push(@HsC_flags, '-fignore-interface-pragmas');
834 # and tell the compiler not to produce them
835 push(@HsC_flags, '-fomit-interface-pragmas');
837 &add_Hsc_flags( @HsC_minusNoO_flags );
838 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
840 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
842 &add_Hsc_flags( @HsC_minusO_flags );
843 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
844 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
845 # but it *is* useful in compiling the garbage collector.
847 } else { # -Ofile, then...
849 &add_Hsc_flags( @HsC_minusO3_flags );
850 push(@HsC_flags, $Oopt_FinalStgProfilingMassage) if $Oopt_FinalStgProfilingMassage;
852 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
855 } # setupOptimiseFlags
859 %************************************************************************
861 \subsection{Check for consistency, etc.}
863 %************************************************************************
865 Sort out @$BuildTag@, @$PROFing@, @$PARing@,
866 @$GRANing@, @$TICKYing@, @UNREGing@:
868 sub setupBuildFlags {
871 # PROFILING stuff after argv mangling:
873 # warn about any scc exprs found (in case scc used as identifier)
874 push(@HsP_flags, '-W');
876 # add -auto sccs even if not profiling !
877 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
880 push(@HsC_flags, $PROFauto) if $PROFauto;
881 push(@HsC_flags, $PROFcaf) if $PROFcaf;
882 push(@HsC_flags, $PROFdict) if $PROFdict;
884 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
886 # Ignore user sccs when auto annotating, but warn when doing so.
887 $PROFignore_scc = '-W' if $PROFauto;
889 push(@HsP_flags, (($PROFignore_scc) ? $PROFignore_scc : '-S'));
891 #if ( $BuildTag ne '' ) {
892 # local($b) = $BuildDescr{$BuildTag};
893 # if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
894 # if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
895 # if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
897 # # ok to have a user-way profiling build
898 # # eval the profiling opts ... but leave user-way BuildTag
899 # if ($PROFing eq 'p') { &processArgs(split(' ', $SetupOpts{'_p'})); } # eval($EvaldSetupOpts{'_p'}); }
901 if ( $PROFing eq 'p' ) {
902 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
903 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
904 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
907 } elsif ( $PARing eq 'p' ) {
908 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
909 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
912 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
913 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
917 } elsif ( $GRANing eq 'g' ) {
918 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
921 } elsif ( $TICKYing eq 't' ) {
924 } elsif ( $UNREGing eq 'u' ) {
930 After the sanity checks, add flags to the necessary parts of the driver pipeline:
933 if ( $BuildTag ne '' ) { # something other than normal sequential...
935 local($Tag) = "${BuildTag}";
936 $Tag =~ s/_//; # move the underscore to the back
938 $HscOut = '-C='; # must go via C
939 &processArgs(split(' ', $SetupOpts{$BuildTag}));
940 # eval($EvaldSetupOpts{$BuildTag});
944 Decide what the consistency-checking options are in force for this run:
947 $HsC_consist_options = "${BuildTag},${DEBUGging}";
948 $Cc_consist_options = "${BuildTag},${DEBUGging}";
951 # Funny place to put it, but why not.
953 if ( $HiSuffix_prelude eq '' ) {
955 if ($CompilingPrelude) {
956 $HiSuffix_prelude = "$HiSuffix" if $CompilingPrelude;
958 local($Tag) = "${BuildTag}";
961 $Tag = "${Tag}_" if $Tag ne '';
962 $HiSuffix_prelude="${Tag}hi";
968 %************************************************************************
970 \subsection{Add on machine-specific C-compiler flags}
972 %************************************************************************
974 Shove on magical machine-specific options. We use \tr{unshift} to
975 stick them on the {\em front} of the arrays, so that ``later''
976 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
978 Note: a few ``always apply'' flags were set at the very beginning.
983 if ($TargetPlatform =~ /^alpha-/) {
984 unshift(@CcBoth_flags, ('-static'));
986 } elsif ($TargetPlatform =~ /^hppa/) {
987 unshift(@CcBoth_flags, ('-static'));
989 # We don't put in '-mlong-calls', because it's only
990 # needed for very big modules (sigh), and we don't want
991 # to hobble ourselves further on all the other modules
994 # [Dated comment (gcc-2.6.x?), -mlong-calls is no longer
995 # a supported gcc HPPA flag]
996 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
997 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
998 # (very nice, but too bad the HP /usr/include files don't agree.)
1000 } elsif ($TargetPlatform =~ /^i386-/) {
1001 # -fno-defer-pop : basically the same game as for m68k
1003 # -fomit-frame-pointer : *must* in .hc files; because we're stealing
1004 # the fp (%ebp) for our register maps.
1006 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1007 unshift(@CcRegd_flags_hc, '-fomit-frame-pointer');
1008 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1010 unshift(@CcBoth_flags, ('-DDONT_WANT_WIN32_DLL_SUPPORT')) if ($Static);
1012 } elsif ($TargetPlatform =~ /^m68k-/) {
1013 # -fno-defer-pop : for the .hc files, we want all the pushing/
1014 # popping of args to routines to be explicit; if we let things
1015 # be deferred 'til after an STGJUMP, imminent death is certain!
1017 # -fomit-frame-pointer : *don't*
1018 # It's better to have a6 completely tied up being a frame pointer
1019 # rather than let GCC pick random things to do with it.
1020 # (If we want to steal a6, then we would try to do things
1021 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1023 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1024 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1025 # maybe gives reg alloc a better time
1026 # also: -fno-defer-pop is not sufficiently well-behaved without it
1028 } elsif ($TargetPlatform =~ /^mips-/) {
1029 unshift(@CcBoth_flags, ('-static'));
1031 } elsif ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1032 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1033 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1034 } elsif ($TargetPlatform =~ /^sparc-/) {
1036 } # end of setupMachOpts
1039 %************************************************************************
1041 \subsection{Set up for warnings}
1043 %************************************************************************
1045 Several warnings are turned on by default. These are supposed to be
1046 the 'I'm pretty sure you've made a mistake here' kind of warnings.
1047 The rest are turned on by the -W and -Wall options, or individually
1048 via their -fwarn and -fno-warn flags.
1051 sub setupWarningFlags {
1052 &add_Hsc_flags( @StandardWarnings );
1056 Same unshifting magic, but for special linker flags.
1058 The configure script determines whether the object file symbol tables
1059 have a leading underscore, and sets @LeadingUnderscore@ accordingly.
1060 (The driver script `sees' the setting of the @LeadingUnderscore@
1061 by having the Makefile prepend it).
1065 local($uscore) = ( ${LeadingUnderscore} eq 'YES' ) ? '_' : '';
1068 (($Ld_main) ? ( '-u', "${uscore}Main_" . $Ld_main . '_closure' ) : ()));
1070 # things that are referenced by the RTS - make sure that we pull 'em in
1072 ( '-u', "${uscore}PrelBase_Izh_static_info"
1073 ,'-u', "${uscore}PrelBase_Czh_static_info"
1074 ,'-u', "${uscore}PrelBase_Fzh_static_info"
1075 ,'-u', "${uscore}PrelBase_Dzh_static_info"
1076 ,'-u', "${uscore}PrelAddr_Azh_static_info"
1077 ,'-u', "${uscore}PrelAddr_Wzh_static_info"
1078 ,'-u', "${uscore}PrelAddr_I64zh_static_info"
1079 ,'-u', "${uscore}PrelAddr_W64zh_static_info"
1080 ,'-u', "${uscore}PrelStable_StablePtr_static_info"
1081 ,'-u', "${uscore}PrelBase_Izh_con_info"
1082 ,'-u', "${uscore}PrelBase_Czh_con_info"
1083 ,'-u', "${uscore}PrelBase_Fzh_con_info"
1084 ,'-u', "${uscore}PrelBase_Dzh_con_info"
1085 ,'-u', "${uscore}PrelAddr_Azh_con_info"
1086 ,'-u', "${uscore}PrelAddr_Wzh_con_info"
1087 ,'-u', "${uscore}PrelAddr_I64zh_con_info"
1088 ,'-u', "${uscore}PrelAddr_W64zh_con_info"
1089 ,'-u', "${uscore}PrelStable_StablePtr_con_info"
1090 ,'-u', "${uscore}PrelBase_False_static_closure"
1091 ,'-u', "${uscore}PrelBase_True_static_closure"
1092 ,'-u', "${uscore}PrelPack_unpackCString_closure"
1093 ,'-u', "${uscore}PrelException_stackOverflow_closure"
1094 ,'-u', "${uscore}PrelException_heapOverflow_closure"
1096 if (!$NoHaskellMain) {
1097 unshift (@Ld_flags,'-u', "${uscore}PrelMain_mainIO_closure");
1099 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1100 # sometimes we have lots of toc entries...
1101 # unshift(@Ld_flags, ('-Xlinker -bbigtoc -Xlinker -bnoquiet'));
1102 unshift(@Ld_flags, ('-Xlinker -bbigtoc'));
1106 } # end of setupLinkOpts
1110 %************************************************************************
1112 \subsection{Set up include paths and system-library enslurpment}
1114 %************************************************************************
1116 Now that we know what garbage-collector, etc., are required, we can
1117 finalise our list of libraries to slurp through, and generally Get
1122 # default includes must be added AFTER option processing
1123 if ( ! $INSTALLING ) {
1124 push (@Include_dir, "$TopPwd/${CURRENT_DIR}/${GHC_INCLUDE_DIR}");
1126 push (@Include_dir, "$InstLibDirGhc/includes");
1127 push (@Include_dir, "$InstLibDirGhc/includes");
1129 } # end of setupIncPaths
1134 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1137 foreach $f (@SysLibrary) {
1138 next if $f =~ /_cbits/;
1139 $f .= $BuildTag if $f =~ /^-lHS/;
1142 # Push library HSrts, plus boring clib bit
1143 push(@SysLibrary, "-lHSrts${BuildTag}");
1146 # RTS compiled with cygwin32, uses the WinMM API
1147 # to implement the itimers, since cygwin.dll does not
1148 # support it. Only reqd. for `ways' that use itimers.
1150 push(@SysLibrary, '-lwinmm') if $TargetPlatform eq 'i386-unknown-cygwin32';
1151 # Note: currently only tested with mingw, may cause conflicts when linking
1153 push(@SysLibrary, '-lwsock32') if ($TargetPlatform =~ /-(mingw32|cygwin32)$/);
1155 # Push the pvm libraries
1156 if ($BuildTag eq '_mp') {
1157 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1158 push(@SysLibrary, "-L$pvmlib", '-lgpvm3', '-lpvm3');
1159 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1160 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1161 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1162 push(@SysLibrary, '-lsocket', '-lnsl');
1166 # Push the GNU multi-precision arith lib; and the math library
1168 # If this machine has GMP already installed, then we'll get the installed
1169 # lib here, because presumably the one in the tree won't have been built.
1171 if ($LibGmp eq 'not-installed') {
1172 push(@SysLibrary, "-lgmp");
1174 push(@SysLibrary, "-l$LibGmp");
1177 push(@SysLibrary, '-lm') if !( $TargetPlatform =~ /^.*(cygwin32|mingw32)$/ );
1180 %************************************************************************
1182 \subsection{Check that this system was built to do what we are asking}
1184 %************************************************************************
1186 Before continuing we check that the appropriate build is available.
1189 #die "$Pgm: no BuildAvail?? $BuildTag\n" if $BuildDescr{$BuildTag} eq '' ; # sanity
1191 if ( $BuildDescr{$BuildTag} eq '' ) {
1192 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1193 "' \"build\" is not available with your GHC setup.\n";
1194 print STDERR "(It was not configured for it at your site.)\n";
1195 print STDERR $ShortUsage;
1199 } # end of setupSyslibs
1203 %************************************************************************
1205 \subsection{Final miscellaneous setup bits before we start going}
1207 %************************************************************************
1209 Record largest specific heapsize, if any.
1211 sub setupHeapStackSize {
1212 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1213 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1214 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1215 push(@HsC_rts_flags, "-K$Specific_stk_size");
1219 If no input or link files seen, then we let 'em feed in stdin; this is
1220 mainly for debugging.
1224 if ($#Input_file < 0 && $#Link_file < 0) {
1225 @Input_file = ( '-' );
1227 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1228 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n" if -t;
1229 while (<STDIN>) { print INF $_; }
1230 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1235 Tell the world who we are, if they asked.
1237 print STDERR "${ProjectName}, version ${ProjectVersion}, patchlevel ${ProjectPatchLevel}\n"
1241 %************************************************************************
1243 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1245 %************************************************************************
1247 Process the input files; don't continue with linking if there are
1248 problems (global variable @$Status@ non-zero).
1250 foreach $ifile (@Input_file) {
1251 &ProcessInputFile($ifile);
1254 # don't link if there were errors...
1255 if ( $Status > 0 ) {
1256 print STDERR $ShortUsage;
1261 # Link if appropriate.
1262 &runLinker() if $Do_lnkr;
1264 # that... that's all, folks!
1266 exit $Status; # will still be 0 if all went well
1269 %************************************************************************
1271 \section[Driver-do-one-file]{How to process a single input file}
1273 %************************************************************************
1276 sub ProcessInputFile {
1277 local($ifile) = @_; # input file name
1278 local($ifile_root); # root of or basename of input file
1279 local($ofile_target); # ultimate output file we hope to produce
1280 # from input file (need to know for recomp
1281 # checking purposes)
1282 local($hifile_target);# ditto (but .hi file)
1283 local($ofile_c_stub_target);
1284 local($ofile_h_stub_target);
1287 Handle the weirdity of input from stdin.
1289 if ($ifile ne '-') {
1290 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1291 $ofile_target = # may be reset later...
1292 ($Specific_output_file ne '' && ! $Do_lnkr)
1293 ? $Specific_output_file
1294 : &odir_ify($ifile_root, 'o');
1295 $hifile_target= ($Specific_hi_file ne '')
1297 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1298 # NB: may change if $ifile_root isn't module name (??)
1299 ($ofile_c_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.c/;
1300 ($ofile_h_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.h/;
1302 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1303 $ifile_root = '_stdin';
1304 $ofile_target = '_stdout'; # gratuitous?
1305 $hifile_target= '_stdout'; # ditto?
1309 We need to decide what phases of the compilation system we will run
1310 over this file. The defaults are the ones established when processing
1311 flags. (That established what the last phase run for all files is.)
1313 We do the pre-recompilation-checker phases here; the rest later.
1317 Look at the suffix and decide what initial phases of compilation may
1318 be dropped off for this file. Also the rather boring business of
1319 which files are coming-in/going-out.
1321 Again, we'll do the post-recompilation-checker parts of this later.
1323 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1324 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1327 # names of the files to stuff between phases
1328 # defaults are temporaries
1329 local($in_lit2pgm) = $ifile;
1330 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1331 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1332 local($hsc_hi) = "$Tmp_prefix.hi";
1333 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1334 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1335 local($as_out) = $ofile_target;
1337 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
1339 # OK, let's strip off some literate junk..
1341 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
1343 $lit2pgm_hscpp = $ifile;
1349 # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas
1350 &check_for_source_options($lit2pgm_hscpp,$ifile);
1352 # Options found in the source file take a back seat, i.e., we scan
1353 # them first. Only process the command line again if source file
1354 # contained anything of interest *or* there's more than one
1355 # input file (we have to reset the options).
1357 if ( $#Input_file >= 0 || $#File_options >= 0) {
1358 #@File_options = (@File_options, @Cmd_opts);
1360 # Now process the command line
1361 &initDriverGlobals();
1362 &processArgs((@File_options,@Cmd_opts));
1363 print STDERR "\nEffective command line: " .
1364 join(' ',(@File_options,@Cmd_opts)) . "\n" if $Verbose;
1367 # Having got the effective command line scanned, set up
1368 # the various options in prep for some real work.
1370 # check the sanity of the BuildTag we're about to use,
1371 # and if needs be, add some more flags and setup to
1372 # the different phases.
1375 &setupOptimiseFlags();
1378 &setupWarningFlags();
1379 &setupHeapStackSize();
1382 # These two variables need to be set after the
1383 # command-line has been processed and the build options
1384 # have be seen set up. This is because command-line options
1385 # can control whether to compile vias C or not.
1387 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1389 : ( ($HscOut eq '-C=') ? 1 : 0 );
1390 local($do_as) = $Do_as;
1391 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1392 local($hsc_out_c_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.c" : "";
1393 local($hsc_out_h_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.h" : "";
1395 if ($Only_preprocess_hc) { # stop after having run $Cc -E
1398 if ($Only_preprocess_C) { # stop after having run $hscpp
1399 $do_hsc=0; $do_cc = 0; $do_as=0;
1400 } elsif ($ifile =~ /.lhs$/ || $ifile =~ /.hs$/ ) {
1402 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
1403 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1405 $hsc_out_c_stub = '';
1406 $hsc_out_h_stub = '';
1407 } elsif ($ifile =~ /\.c$/) {
1408 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1409 $hsc_out = $ifile; $is_hc_file = 0;
1410 $hsc_out_c_stub = '';
1411 $hsc_out_h_stub = '';
1412 } elsif ($ifile =~ /\.[sS]$/) {
1413 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
1415 } else { # don't know what it is, but nothing to do herein...
1416 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
1419 # hack to avoid running hscpp
1420 $HsCpp = $Cat if ! $Cpp_flag_set;
1422 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) if $do_hscpp;
1426 We now think about whether to run hsc/cc or not (when hsc produces .s
1427 stuff, it effectively takes the place of both phases).
1428 To get the output file name right: for each phase that we are {\em
1429 not} going to run, set its input (i.e., the output of its preceding
1430 phase) to @"$ifile_root.<suffix>"@.
1433 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
1436 # Warning issued if -keep-hc-file-too is used without
1437 # -fvia-C (or the equivalent)
1439 if ( $HscOut ne '-C=' && $Keep_hc_file_too ) {
1440 print STDERR "$Pgm: warning: Native code generator to be used, -keep-hc-file-too will be ignored\n";
1443 if (! $do_cc && ! $do_as) { # stopping after hsc
1444 $hsc_out = ($Specific_output_file ne '')
1445 ? $Specific_output_file
1446 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
1448 $ofile_target = $hsc_out; # reset
1451 if (! $do_as) { # stopping after gcc (or hsc)
1452 $cc_as = ($Specific_output_file ne '')
1453 ? $Specific_output_file
1454 : &odir_ify($ifile_root, ( $Only_preprocess_hc ) ? 'i' : 's');
1456 $ofile_target = $cc_as; # reset
1462 Now the Haskell compiler, C compiler, and assembler
1466 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
1467 $ofile_target, $hifile_target,
1468 $going_interactive);
1471 if (-f $hsc_out_h_stub) {
1472 &run_something("cp $hsc_out_h_stub $ofile_h_stub_target", 'Copy foreign export header file');
1475 if (-f $hsc_out_c_stub) {
1476 &run_something("cp $hsc_out_c_stub $ofile_c_stub_target", 'Copy foreign export C stubs');
1477 local ($hsc_out_s_stub);
1478 local ($hsc_out_o_stub);
1479 ($ofile_s_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$/\.s/;
1480 ($ofile_o_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$/\.o/;
1481 &runGcc (0, $ofile_c_stub_target, $ofile_s_stub_target);
1482 &runAs ($ofile_o_stub_target, $ofile_s_stub_target);
1484 # Bring the C stub protos into scope when compiling the .hc file.
1486 push (@CcInjects, "#include \"${hsc_out_h_stub}\"\n");
1487 # Hack - ensure that the stub .h file is included in the OPTIONS section
1488 # if the .hc file is saved.
1489 push (@File_options, "-#include \"${ofile_h_stub_target}\"\n");
1494 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
1495 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root) if ! $Only_preprocess_hc;
1498 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
1500 # save a copy of the .s file..
1501 &saveIntermediate($ifile_root , "s" , $cc_as) if ($do_as && $Keep_s_file_too);
1502 &runAs($as_out, $ifile_root) if $do_as;
1505 Finally, decide what to queue up for linker input.
1507 # tentatively assume we will eventually produce linker input:
1508 push(@Link_file, &odir_ify($ifile_root, 'o'));
1510 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
1512 if ( $ifile !~ /\.(lhs|hs|hc|c|s|a|S)$/ && $ifile !~ /_hc$/ ) {
1513 # There's sometimes confusion regarding .hi files; users
1514 # supplying them on the command line.
1515 if ( $ifile =~ /\.hi$/ ) {
1516 print STDERR "$Pgm: warning: found `$ifile' on command line; interface files should not be supplied here - ignoring it.\n";
1518 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n";
1520 # oops; we tentatively pushed the wrong thing; fix & do the right thing
1521 pop(@Link_file); push(@Link_file, $ifile);
1525 } # end of ProcessInputFile
1528 %************************************************************************
1530 \section[Driver-run-phases]{Routines to run the various phases}
1532 %************************************************************************
1536 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
1540 # Only add #line pragma if we're going to need it.
1541 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && " if ($Cpp_flag_set);
1542 $to_do .= "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
1544 push(@Files_to_tidy, $lit2pgm_hscpp );
1546 &run_something($to_do, 'literate pre-processor');
1552 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
1556 # Strictly speaking, echoing of the following line pragma is only required
1557 # on non-delit'ed input, as we've already added it during de-lit. However,
1558 # hscpp will then add a {-# LINE 1 "$lit2pgm_hsc" -} to the top of the file,
1559 # which is not very informative (but harmless). Hence, we uniformly have
1560 # {-# LINE 1 "$in_lit2pgm" #-} as the first line to all cpp'ed hsc input.
1562 $to_do = "echo '{-# LINE 1 \"$in_lit2pgm\" -}' > $hscpp_hsc && ";
1564 if ($HsCpp eq $Cat) {
1565 $to_do .= "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
1566 push(@Files_to_tidy, $hscpp_hsc );
1567 &run_something($to_do, 'Ineffective C pre-processor');
1569 local($includes) = '-I' . join(' -I',@Include_dir);
1570 $to_do .= "$HsCpp $Verbose @HsCpp_flags @HsSourceCppOpts $includes $lit2pgm_hscpp >> $hscpp_hsc";
1571 push(@Files_to_tidy, $hscpp_hsc );
1572 &run_something($to_do, 'Haskellised C pre-processor');
1575 if ( $Only_preprocess_C ) {
1576 $to_do = "$Cat $hscpp_hsc";
1577 &run_something($to_do, '');
1585 sub runHscAndProcessInterfaces {
1586 local($ifile, $hscpp_hsc, $ifile_root,
1587 $ofile_target, $hifile_target,
1588 $going_interactive) = @_;
1590 # $ifile is the original input file
1591 # $hscpp_hsc post-unlit, post-cpp, etc., input file
1592 # $ifile_root input filename minus suffix
1593 # $ofile_target the output file that we ultimately hope to produce
1594 # $hifile_target the .hi file ... (ditto)
1596 local($source_unchanged) = 1;
1598 # Check if the source file is up to date relative to the target; in
1599 # that case we say "source is unchanged" and let the compiler bail out
1600 # early if the import usage information allows it.
1602 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
1603 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
1605 # The informational messages below are now conditional on -v being set -- SOF
1606 if ( $ofile_target ne "_stdin.s" && ! -f $ofile_target ) {
1607 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n" if $Verbose;
1608 $source_unchanged = 0;
1611 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
1612 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
1614 if ( $hifile_target ne "_stdout" && ! -f $hifile_target ) {
1615 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n" if $Verbose;
1616 $source_unchanged = 0;
1619 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
1620 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
1622 if ( $ofile_target ne "_stdin.s" && $i_mtime > $o_mtime) {
1623 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n" if $Verbose;
1624 $source_unchanged = 0;
1627 # Tell the compiler which version we're using
1628 push(@HsC_flags, "-fhi-version=${ProjectVersionInt}");
1630 # So if source_unchanged is still "1", we pass on the good news to the compiler
1631 # The -recomp flag can disable this, forcing recompilation
1632 if ($Do_recomp_chkr && $source_unchanged) {
1633 push(@HsC_flags, '-fsource-unchanged');
1636 # Indicate whether we're static or not.
1637 # This will only ever
1638 push(@HsC_flags, '-static') if $Static;
1642 &runHsc($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive);
1644 # See if it bailed out early, saying nothing needed doing.
1645 # We work this out by seeing if it created an output .hi file
1647 if ( ! -f $hsc_hi && $ProduceHi !~ /-nohifile=/ ) {
1648 # Doesn't exist, so we bailed out early.
1649 # Tell the C compiler and assembler not to run
1650 $do_cc = 0; $do_as = 0;
1652 # Update dependency info, touch both object file and
1653 # interface file, so that the following invariant is
1656 # a dependent module's interface file should after recompilation
1657 # checking be newer than the interface files of its imports.
1659 # That is, if module A's interface file changes, then module B
1660 # (which import from A) needs to be checked.
1661 # If A's change does not affect B, which causes the compiler to bail
1662 # out early, we still need to touch the interface file of B. The reason
1663 # for this is that B may export A's interface.
1665 &run_something("touch $ofile_target",
1666 "Touch $ofile_target, to propagate dependencies") if $HscOut ne '-N=';
1667 &run_something("touch $hifile_target",
1668 "Touch $hifile_target, to propagate dependencies") if $ProduceHi =~ /-nohifile=/ ;
1672 # Didn't bail out early (new .hi file) so we thunder on
1674 # If non-interactive, heave in the consistency info at the end
1675 # NB: pretty hackish (depends on how $output is set)
1676 if ( ! $going_interactive ) {
1677 if ( $HscOut eq '-C=' ) {
1678 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
1680 } elsif ( $HscOut eq '-S=' ) {
1681 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
1682 $consist =~ s/,/./g;
1683 $consist =~ s/\//./g;
1684 $consist =~ s/-/_/g;
1685 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
1686 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
1688 &run_something($to_do, 'Pin on Haskell consistency info');
1692 # Interface-handling is important enough to live off by itself
1693 if ( $ProduceHi !~ /-nohifile=/ ) { # If we've produced one, process it.
1694 require('ghc-iface.prl') || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
1695 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
1697 # if we're going to split up object files,
1698 # we inject split markers into the .hc file now
1699 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
1700 &inject_split_markers ( $hsc_out );
1703 # save a copy of the .hc file, even if we are carrying on...
1704 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
1705 &saveIntermediate($ifile_root , "hc" , $hsc_out);
1715 local($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive) = @_;
1717 # prepend comma to HsP flags (so hsc can tell them apart...)
1718 foreach $a ( @HsP_flags ) { $a = ",$a" unless $a =~ /^,/; }
1720 &makeHiMap() unless $HiMapDone;
1721 push(@HsC_flags, "-himap=$HiIncludeString");
1723 # here, we may produce .hc/.s and/or .hi files
1724 local($output) = '';
1725 #@Files_to_tidy = ();
1727 if ( $going_interactive ) {
1728 # don't need .hi unless we're going to show it on stdout:
1729 $ProduceHi = '-nohifile=' if ! ($HiOnStdout || $Specific_hi_file ne '' );
1730 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
1733 # set up for producing output/.hi; note that flag twiddling
1734 # may mean that nothing will actually be produced:
1735 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out -F=$hsc_out_c_stub -FH=$hsc_out_h_stub";
1736 push(@Files_to_tidy, $hsc_hi, $hsc_out, $hsc_out_c_stub, $hsc_out_h_stub );
1738 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
1739 if ( $CollectingGCstats ) {
1740 push(@HsC_rts_flags, "-S$ifile_root.stat");
1741 push(@Files_to_tidy, "$ifile_root.stat");
1744 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
1745 # emit nofibbish time/bytes-alloc stats to stderr;
1746 # see later .stat file post-processing
1747 print STDERR "warning: both -Rgc-stats and -Rghc-timing used, -Rghc-timing wins." if $CollectingGCstats;
1748 push(@HsC_rts_flags, "-s$Tmp_prefix.stat");
1749 push(@Files_to_tidy, "$Tmp_prefix.stat");
1753 if ($Specific_dump_file ne '') {
1754 $dump = "2>> $Specific_dump_file";
1755 $Using_dump_file = 1;
1759 # Win32 only: If the command processor used by system()
1760 # exec()s the application as an ordinary Win32 executable,
1761 # we're in trouble here, since the command line is likely
1762 # to be > 255 chars long. To work around this situation,
1763 # $HsC also understands `at-files', i.e., `@file' on the
1764 # command line will cause $HsC to add the contents of `file'
1765 # to the command line.
1767 # [ Note: support for `at-files' is not compiled in by default ]
1768 $cmd_line_opts_via_at_file=0;
1769 if ($cmd_line_opts_via_at_file) {
1771 local($to_do_opts) = "$Tmp_prefix.opts";
1772 open(OPTS, "> $Tmp_prefix.opts") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.opts\n");
1773 print OPTS "$dump @HsC_flags $CoreLint $USPLint $StgLint $Verbose";
1775 $to_do = "$HsC @HsP_flags ,$hscpp_hsc \@$Tmp_prefix.opts $output +RTS @HsC_rts_flags";
1779 $to_do = "$HsC @HsP_flags ,$hscpp_hsc $dump @HsC_flags $CoreLint $USPLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
1781 &run_something($to_do, 'Haskell compiler');
1783 # finish business w/ nofibbish time/bytes-alloc stats
1784 &process_ghc_timings() if $CollectGhcTimings;
1788 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
1789 of (module-name, pathname) pairs, one per line, separated by a space.
1792 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1796 # collect in %HiMap; write later; also used elsewhere in driver
1798 local($mod, $path, $d, $e);
1800 # reset the global variables:
1802 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1804 foreach $d ( @Import_dir ) {
1805 if ($HiIncludeString) {
1806 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix}";
1808 $HiIncludeString = "$d%.${HiSuffix}";
1813 foreach $d ( @SysImport_dir ) {
1814 if ($HiIncludeString) {
1815 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix_prelude}";
1817 $HiIncludeString = "${d}%.${HiSuffix_prelude}";
1826 Invoke the 'linker' - either the standard linker or the one used to build
1832 local($libdirs) = '';
1834 # append last minute flags linker and consistency flags
1839 # glue them together:
1840 push(@UserLibrary_dir, @SysLibrary_dir);
1842 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1844 # for a linker, use an explicitly given one, or the going C compiler ...
1845 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1847 if ( ($Specific_output_file eq '') &&
1848 ($TargetPlatform eq 'i386-unknown-cygwin32') ) {
1849 $Specific_output_file = 'main.exe';
1850 print STDERR "Output file not specified, defaulting to \"main.exe\"\n";
1853 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1854 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1856 &prepareWin32DllLink(1);
1858 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $TopClosureFile $libdirs @UserLibrary @SysLibrary";
1859 &run_something($to_do, 'Linker');
1861 # finally, check the consistency info in the binary
1862 local($executable) = $Files_to_tidy[0];
1863 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1866 # dynamically load consistency-chking code; then do it.
1867 require('ghc-consist.prl')
1868 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1870 &chk_consistency_info ( $executable );
1873 # if PVM parallel stuff, we do truly weird things.
1874 # Essentially: (1) move the executable over to where PVM expects
1875 # to find it. (2) create a script in place of the executable
1876 # which will cause the program to be run, via SysMan.
1877 if ( $PARing eq 'p' ) {
1878 local($pvm_executable) = $executable;
1879 local($pvm_executable_base);
1881 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1882 local($pwd) = `pwd`;
1884 $pwd =~ s/^\/tmp_mnt//;
1885 $pvm_executable = "$pwd/$pvm_executable";
1888 $pvm_executable =~ s|/|=|g; # make /s into =s
1889 $pvm_executable_base = $pvm_executable;
1891 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1892 . "/$pvm_executable";
1894 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1896 # OK, now create the magic script for "$executable"
1897 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1898 print EXEC <<EOSCRIPT1;
1899 eval 'exec perl -S \$0 \${1+"\$@"}'
1900 if \$running_under_some_shell;
1901 # =!=!=!=!=!=!=!=!=!=!=!
1902 # This script is automatically generated: DO NOT EDIT!!!
1903 # Generated by Glasgow Haskell, version ${ProjectVersion} ${ProjectPatchLevel}
1905 \$pvm_executable = '$pvm_executable';
1906 \$pvm_executable_base = '$pvm_executable_base';
1907 \$SysMan = '$SysMan';
1910 print EXEC <<\EOSCRIPT2;
1911 # first, some magical shortcuts to run "commands" on the binary
1913 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1915 system("$cmd $pvm_executable");
1919 # OK, really run it; process the args first
1920 $ENV{'PE'} = $pvm_executable_base;
1922 $nprocessors = 2; # the default
1926 # ToDo: handle --RTS
1927 args: while ($a = shift(@ARGV)) {
1928 if ( $a eq '+RTS' ) {
1930 } elsif ( $a eq '-RTS' ) {
1933 if ( $a eq '-d' && $in_RTS_args ) {
1935 } elsif ( $a =~ /^-N(\d+)/ && $in_RTS_args ) {
1938 push(@nonPVM_args, $a);
1942 local($return_val) = 0;
1943 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
1945 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
1948 close(EXEC) || die "Failed closing $executable\n";
1949 chmod 0755, $executable;
1953 sub createWin32DLL()
1957 # append last minute flags linker and consistency flags
1962 # glue them together:
1963 push(@UserLibrary_dir, @SysLibrary_dir);
1965 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1967 &prepareWin32DllLink(0);
1969 local ($bld_dll) = "dllwrap";
1971 local ($output) = ($Specific_output_file ne '') ? "$Specific_output_file" : 'HSdll.dll';
1972 local ($output_dir);
1973 local ($output_file);
1974 local ($output_lib, $output_def);
1976 ($output_dir = $output) =~ s|(.*/)[^/]+$|$1|;
1977 $output_dir = "" if ($output_dir eq $output);
1978 ($output_file = $output) =~ s|.*/([^/]+)$|$1|;
1980 ($output_lib = $output_file) =~ s|(.+)\.[^\.]*$|${output_dir}lib$1_imp.a|;
1981 ($output_def = $output_file) =~ s|(.+)\.[^\.]*$|${output_dir}$1.def|;
1983 push (@Dll_flags, "-mno-cygwin --target=i386-mingw32") if ($TargetPlatform =~ /^.*mingw32$/);
1984 push (@Dll_flags, "--output-lib $output_lib");
1985 # If the "--def " option hasn't been supplied, assume everything
1986 # is going to be exported via the DLL.."
1987 if (!grep(/--def/, @Dll_flags)) {
1988 push (@Dll_flags, "--export-all --output-def $output_def");
1991 local($to_do) = "$bld_dll @Dll_flags -o $output @Link_file $libdirs @UserLibrary @SysLibrary";
1992 # Make sure the user sees this piece of magic.
1993 print STDERR "$to_do\n" if (!$Verbose);
1994 &run_something($to_do, 'DLL creator');
1997 sub prepareWin32DllLink ()
1999 local($linking_main) = @_;
2002 # Win32 DLLs - link with import libraries, not the real archives.
2004 if ( $TargetPlatform =~ /-mingw32$/ ) {
2007 # If the libraries have the form libHSfoo.a, we
2008 # transform that into libHSfoo_imp.a - the import
2009 # library of the DLL.
2011 foreach $a ( @SysLibrary ) {
2012 $a = "${a}_imp" if ($a =~ /^-lHS/);
2014 foreach $a ( @UserLibrary ) {
2015 $a = "${a}_imp" if ($a =~ /^-lHS/);
2017 push(@Link_file, ( $INSTALLING ) ? "$InstLibDirGhc/Main.o"
2018 : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/Main.o") if $linking_main;
2019 push(@Link_file, ( $INSTALLING ) ? "$InstLibDirGhc/PrelMain.o"
2020 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/PrelMain.o") if $linking_main;
2022 push(@Ld_flags, "-mno-cygwin");
2028 %************************************************************************
2030 \section[Driver-misc-utils]{Miscellaneous utilities}
2032 %************************************************************************
2034 %************************************************************************
2036 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
2038 %************************************************************************
2042 local($ofile,$def_suffix) = @_;
2044 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
2048 local($orig_file, $def_suffix) = @_;
2049 if ($Specific_output_dir eq '') { # do nothing
2050 &osuf_ify($orig_file, $def_suffix);
2052 local ($orig_file_only);
2053 ($orig_file_only = $orig_file) =~ s|.*/||;
2054 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
2061 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
2063 local($includes) = '-I' . join(' -I', @Include_dir);
2066 local($c_flags) = "@CcBoth_flags";
2067 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2069 $c_flags .= " -mno-cygwin" if ( $TargetPlatform =~ /-mingw32$/ );
2071 # "input" files to use that are not in some weird directory;
2072 # to help C compilers grok .hc files [ToDo: de-hackify]
2073 local($cc_help) = "ghc$$.c";
2074 local($cc_help_s) = "ghc$$.s";
2077 $s_output = (($is_hc_file && $DoAsmMangling) || $TargetPlatform =~ /^(powerpc|rs6000|hppa)/) ? $cc_as_o : $cc_as;
2078 $c_flags .= " @CcRegd_flags";
2079 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2081 # C compiler won't like the .hc extension. So we create
2082 # a tmp .c file which #include's the needful.
2083 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2084 if ( $is_hc_file ) {
2088 # user may have asked for #includes to be injected...
2089 print TMP @CcInjects if $#CcInjects >= 0;
2091 # Straight .c files may want to know that they're being used
2092 # with a particular version of GHC, so we define __GLASGOW_HASKELL__ for their benefit.
2093 print TMP "#define __GLASGOW_HASKELL__ ${ProjectVersionInt}\n";
2095 # heave in the consistency info
2096 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2098 print TMP "#include \"$hsc_out\"\n";
2099 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2101 # Don't redirect stderr into intermediate file if slamming output onto stdout (e.g., with -E)
2102 local($fuse_stderr) = "2>&1" if ! $Only_preprocess_hc;
2103 local($to_do) = "$cc $Verbose $ddebug_flag $c_flags @Cpp_define $includes $cc_help > $Tmp_prefix.ccout $fuse_stderr && ( if [ $cc_help_s != $s_output ] ; then mv $cc_help_s $s_output ; else exit 0 ; fi )";
2105 if ( $Only_preprocess_hc ) { # HACK ALERT!
2106 $to_do =~ s/ -S\b//g;
2108 push(@Files_to_tidy, $cc_help, $cc_help_s, $s_output );
2109 $PostprocessCcOutput = 1 if ! $Only_preprocess_hc; # hack, dear hack...
2110 &run_something($to_do, 'C compiler');
2111 $PostprocessCcOutput = 0;
2112 if ( $Only_preprocess_hc ) {
2113 system("$Cat $Tmp_prefix.ccout");
2115 unlink($cc_help, $cc_help_s);
2121 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2123 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2125 if ($is_hc_file && $DoAsmMangling) {
2126 # dynamically load assembler-fiddling code, which we are about to use:
2127 require('ghc-asm.prl')
2128 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2129 # post-process the assembler [.hc files only]
2130 &mangle_asm($cc_as_o, $cc_as);
2132 } elsif ($TargetPlatform =~ /^hppa/) {
2133 # minor mangling of non-threaded files for hp-pa only
2134 require('ghc-asm.prl')
2135 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2136 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2138 } elsif ($TargetPlatform =~ /^powerpc|^rs6000/) {
2139 # minor mangling of non-threaded files for powerpcs and rs6000s
2140 require('ghc-asm.prl')
2141 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-powerpc.prl!\n");
2142 &mini_mangle_asm_powerpc($cc_as_o, $cc_as);
2145 # save a copy of the .s file, even if we are carrying on...
2146 #if ($do_as && $Keep_s_file_too) {
2147 # &saveIntermediate($ifile_root , "s" , $cc_as);
2154 local($as_out, $ifile_root) = @_;
2156 local($asmblr) = ( $As ) ? $As : $CcRegd;
2158 # need to add the -I flags in case the file is going through cpp (.S files)
2159 local($includes) = '-I' . join(' -I', @Include_dir);
2161 if ( ! $SplitObjFiles ) {
2162 local($to_do) = "$asmblr -o $as_out -c @As_flags $includes $cc_as";
2163 push(@Files_to_tidy, $as_out );
2164 &run_something($to_do, 'Unix assembler');
2166 } else { # more complicated split-ification...
2168 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2170 # If -odir is used, great, just pin it in front of the
2171 # generated split file names. If it hasn't been set, we
2172 # snatch it from the ifile_root.
2176 if ( $Specific_output_dir eq '' ) {
2177 $Specific_output_dir = ${ifile_root};
2180 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2181 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2182 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2183 push(@Files_to_tidy, $split_out );
2185 &run_something($to_do, 'Unix assembler');
2191 %************************************************************************
2193 \subsection[Driver-run-something]{@run_something@: Run a phase}
2195 %************************************************************************
2199 local($str_to_do, $tidy_name) = @_;
2201 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2202 print STDERR "$str_to_do\n" if $Verbose;
2204 if ($Using_dump_file) {
2205 open(DUMP, ">> $Specific_dump_file")
2206 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2207 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2209 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2212 local($return_val) = 0;
2214 if ( length($str_to_do) > 4000) {
2215 # 4000 - on the random side, just like the *real* ARG_MAX
2218 # With some shells, command lines of this length may
2219 # very well cause trouble. To safeguard against this, we squirrel the
2220 # command into a file and exec that.
2221 local ($sh) = $ENV{'REAL_SHELL'};
2222 print STDERR "Backup plan A: saving cmd line in ${Tmp_prefix}.sh and executing that with $sh\n" if $Verbose;
2223 open (TEMP, "> ${Tmp_prefix}.sh") ||
2224 &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.sh'\n");
2225 print TEMP "$Time $str_to_do\n";
2227 &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.sh'\n");
2228 system("$sh $Tmp_prefix.sh");
2231 unlink "${Tmp_prefix}.sh";
2233 system("$Time $str_to_do");
2237 if ( $PostprocessCcOutput ) { # hack, continued
2238 open(CCOUT, "< $Tmp_prefix.ccout")
2239 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2241 next if /call-clobbered/;
2242 next if /control reaches end/;
2243 next if /from .*Stg\.h:/;
2244 next if /from ghc\d+.c:\d+:/;
2245 next if /: At top level:$/;
2246 next if /: In function \`.*\':$/;
2247 next if /\`ghc_cc_ID\' defined but not used/;
2250 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2253 if ($return_val != 0) {
2254 if ($Using_dump_file) {
2255 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2257 &tidy_up_and_die($return_val, '');
2259 $Using_dump_file = 0;
2263 %************************************************************************
2265 \subsection[Driver-ghc-timing]{Emit nofibbish GHC timings}
2267 %************************************************************************
2269 NB: nearly the same as in @runstdtest@ script.
2272 sub process_ghc_timings {
2273 local($StatsFile) = "$Tmp_prefix.stat";
2274 local($SysSpecificTiming) = 'ghc';
2276 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2277 local($max_live) = 0;
2278 local($tot_live) = 0; # for calculating residency stuff
2279 local($tot_samples) = 0;
2282 if (! /Gen:\s+0/ && ! /Minor/ && /^\s*\d+\s+\d+\s+(\d+)\s+\d+\.\d+/ ) {
2283 $max_live = $1 if $max_live < $1;
2287 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2289 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2290 $MaxResidency = $1; $ResidencySamples = $2;
2293 $GCs = $1 if /^\s*([0-9,]+) (collections? in generation 0|garbage collections? performed)/;
2295 if ( /^\s+([0-9]+)\s+Mb total memory/ ) {
2299 # The presence of -? in the following pattern is only there to
2300 # accommodate 0.29 && <= 2.05 RTS'
2301 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*-?(\d+\.\d\d)s elapsed\)/ ) {
2302 $InitTime = $1; $InitElapsed = $2;
2303 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2304 $MutTime = $1; $MutElapsed = $2;
2305 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2306 $GcTime = $1; $GcElapsed = $2;
2309 close(STATS) || die "Failed when closing $StatsFile\n";
2310 if ( $tot_samples > 0 ) {
2311 $ResidencySamples = $tot_samples;
2312 $MaxResidency = $max_live;
2313 $AvgResidency = int ($tot_live / $tot_samples) ;
2316 # warn about what we didn't find
2317 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2318 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2319 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2320 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2321 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2322 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2323 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2324 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2326 # things we didn't necessarily expect to find
2327 $MaxResidency = 0 unless defined($MaxResidency);
2328 $AvgResidency = 0 unless defined($AvgResidency);
2329 $ResidencySamples = 0 unless defined($ResidencySamples);
2332 $BytesAlloc =~ s/,//g;
2333 $MaxResidency =~ s/,//g;
2335 $InitTime =~ s/,//g;
2336 $InitElapsed =~ s/,//g;
2338 $MutElapsed =~ s/,//g;
2340 $GcElapsed =~ s/,//g;
2342 # print out what we found
2343 print STDERR "<<$SysSpecificTiming: ",
2344 "$BytesAlloc bytes, $GCs GCs, $AvgResidency/$MaxResidency avg/max bytes residency ($ResidencySamples samples), ${TotMem}M in use, $InitTime INIT ($InitElapsed elapsed), $MutTime MUT ($MutElapsed elapsed), $GcTime GC ($GcElapsed elapsed)",
2345 " :$SysSpecificTiming>>\n";
2352 %************************************************************************
2354 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2356 %************************************************************************
2360 local($to_do) = "\n$Rm $Tmp_prefix*";
2361 if ( $Tmp_prefix !~ /^\s*$/ ) {
2362 print STDERR "$to_do\n" if $Verbose;
2367 sub tidy_up_and_die {
2368 local($return_val, $msg) = @_;
2370 # delete any files to tidy
2371 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2372 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2376 exit (($return_val == 0) ? 0 : 1);
2380 %************************************************************************
2382 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2384 %************************************************************************
2386 Some command-line arguments take an argument, e.g.,
2387 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2388 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2389 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2391 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2392 gobble the second argument (and probably set the heapsize to something
2396 local(*Args, $option, $rest_of_arg) = @_;
2398 if ($rest_of_arg ne '') {
2399 return($rest_of_arg);
2400 } elsif ($#Args >= 0) {
2401 local($temp) = $Args[0]; shift(@Args);
2404 print STDERR "$Pgm: no argument following $option option\n";
2415 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2417 foreach $f ( @HsC_antiflags ) {
2418 return(0) if $flag eq $f;
2420 # foreach $f ( @HsC_flags ) {
2421 # return(0) if $flag eq $f;
2426 sub squashHscFlag { # pretty terrible
2430 foreach $f ( @HsC_flags ) {
2431 if ($flag eq $f) { $f = ''; }
2439 foreach $f ( @flags ) {
2440 push( @HsC_flags, $f ) if &isntAntiFlag($f);
2445 To add another system library, you'll need to augment the
2446 Supported_syslibs variable with name and info on your addition
2447 to the syslib family. The info bit consist of the following:
2449 - interface file directory
2450 see the misc or posix entry for how to distinguish
2451 between using installed and build tree directories.
2453 - directory location of archives
2455 - location of (way-independent) C support libs.
2456 not all libraries need this - if you don't, just
2457 give the empty string.
2458 - list of syslibs you depend on.
2460 - additional ghc command line flags that should be used.
2461 - additional C compiler command line flags that should be used.
2467 # Hash to keep track of
2468 %Syslibs_added = ();
2471 local($syslib) = @_;
2473 # Lifting this out of this sub brings it out of scope - why??
2474 %Supported_syslibs =
2476 [ # where to slurp interface files from
2478 ? "$InstLibDirGhc/imports/exts"
2479 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/exts"
2481 , # where to find the archive to use when linking
2484 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/exts"
2487 , '' # Syslib dependencies
2488 , '' # extra ghc opts
2489 , '' # extra cc opts
2490 , '' # extra ld opts
2494 [ # where to slurp interface files from
2496 ? "$InstLibDirGhc/imports/misc"
2497 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc"
2499 , # where to find the archive to use when linking
2502 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc"
2504 , # where to find the cbits archive to use when linking
2507 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc/cbits"
2509 , 'exts' # Syslib dependencies
2510 , '' # extra ghc opts
2511 , '' # extra cc opts
2512 , ( $TargetPlatform =~ /-solaris2$/ ? '-lnsl -lsocket' : '')
2515 [ # where to slurp interface files from
2517 ? "$InstLibDirGhc/imports/hbc"
2518 : "$TopPwd/CONTRIB/libraries/hbc/src"
2520 , # where to find the archive to use when linking
2523 : "$TopPwd/CONTRIB/libraries/src/hbc"
2525 , # where to find the cbits archive to use when linking
2528 : "$TopPwd/CONTRIB/libraries/hbc/cbits"
2530 , 'exts' # Syslib dependencies
2531 , '' # extra ghc opts
2532 , '' # extra cc opts
2536 [ # where to slurp interface files from
2538 ? "$InstLibDirGhc/imports/posix"
2539 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix"
2541 , # where to find the archive to use when linking
2544 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix"
2546 , # where to find the cbits archive to use when linking
2549 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix/cbits"
2551 , 'misc' # Syslib dependencies
2552 , '' # extra ghc opts
2553 , '' # extra cc opts
2554 , '' # extra ld opts
2557 [ # where to slurp interface files from
2559 ? "$InstLibDirGhc/imports/concurrent"
2560 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent"
2562 , # where to find the archive to use when linking
2565 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent"
2567 , '' # where to find the cbits archive to use when linking
2568 , '' # Syslib dependencies
2569 , '' # extra ghc opts
2570 , '' # extra cc opts
2571 , '' # extra ld opts
2574 [ # where to slurp interface files from
2576 ? "$InstLibDirGhc/imports/win32"
2577 : "$TopPwd/hslibs/win32/src"
2579 , # where to find the archive to use when linking
2582 : "$TopPwd/hslibs/win32/src"
2585 , 'exts' # Syslib dependencies
2586 , '' # extra ghc opts
2587 , '' # extra cc opts
2588 , '-luser32 -lgdi32' # extra ld opts
2591 [ # where to slurp interface files from
2593 ? "$InstLibDirGhc/imports/com"
2594 : "$TopPwd/hdirect/lib"
2596 , # where to find the archive to use when linking
2599 : "$TopPwd/hdirect/lib"
2602 , 'exts' # Syslib dependencies
2603 , '' # extra ghc opts
2604 , '' # extra cc opts
2605 , '-luser32 -lole32 -loleaut32 -ladvapi32'
2610 # check if it's supported..
2612 if ( !exists $Supported_syslibs{$syslib} ) {
2613 print STDERR "$Pgm: no such system library (-syslib): $syslib\n";
2618 # This check is here to avoid syslib loops from
2619 # spoiling the party. A side-effect of it is that
2620 # it disallows multiple mentions of a syslib on a command-line,
2621 # explicit *and* implicit ones (i.e., "-syslib exts -syslib misc"
2622 # is not equal to "-syslib exts -syslib misc -syslib exts",
2623 # which it needs to be)
2625 # Since our current collection of syslibs don't have any
2626 # loops, this test is disabled.
2628 # ToDo: loop avoidance scheme when the need arises
2630 #return if ( exists $Syslibs_added{$syslib} );
2632 $Syslibs_added{$syslib} = 1;
2634 local ($hi_dir, $lib_dir, $lib_cbits_dir,
2635 $syslib_deps, $syslib_ghc_opts,
2636 $syslib_cc_opts, $syslib_ld_opts) = @{ $Supported_syslibs{$syslib} };
2639 unshift(@SysImport_dir, $hi_dir);
2640 push(@SysLibrary_dir, $lib_dir);
2641 push(@SysLibrary_dir, $lib_cbits_dir) if ( $lib_cbits_dir ne '');
2643 push(@SysLibrary, "-lHS$syslib");
2644 push(@SysLibrary, "-lHS${syslib}_cbits") if ( $lib_cbits_dir ne '');
2645 push(@SysLibrary, $syslib_ld_opts) if ($syslib_ld_opts ne '');
2647 # Add on any extra dependencies.
2648 foreach $lib (split(' ',$syslib_deps)) {
2654 Source files may have {-# OPTIONS ... #-} pragmas at the top, containing
2655 command line options we want to append to collection of commands specified
2656 directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell
2657 file for any such pragmas:
2660 sub check_for_source_options {
2661 local($file,$ifile) = @_;
2662 local($comment_start,$comment_end);
2664 if ($ifile =~ /\.hc$/ ||
2667 $ifile =~ /_s$/ ) { # `Real' C intermediate
2668 $comment_start = "/\\*";
2669 $comment_end = "\\*/";
2670 } else { # Assume it is a file containing Haskell source
2671 $comment_start = "{-#";
2672 $comment_end = "#-}";
2675 open(FILE,$file) || return(1); # No big loss
2678 if ( /^${comment_start} OPTIONS (.*)${comment_end}$/ ) {
2679 # add the options found at the back of the command line.
2680 local(@entries) = split(/\s+/,$1);
2681 print STDERR "Found OPTIONS " . join(' ',@entries) . " in $file\n" if $Verbose;
2682 push(@File_options, @entries);
2684 elsif ( /^$/ ) { # ignore empty lines
2687 elsif ( /^#line.+$/ ) { # ignore comment lines (unused..ToDo: rm )
2690 elsif ( /^{-# LINE.+$/ ) { # ignore line pragmas
2693 else { # stop looking, something non-empty / not
2694 # ${comment_start} OPTIONS .. ${comment_end} encountered.
2695 close(FILE);return(0);
2704 We split the initial argv up into three arrays:
2710 the reason for doing so is to be able to deal
2711 with {-# OPTIONS #-} pragma in source files properly.
2717 arg: while($_ = $args[0]) {
2719 # sigh, we have to deal with these -option arg specially here.
2720 /^-(tmpdir|odir|ohi|o|isuf|osuf|hisuf|odump|syslib)$/ &&
2721 do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; };
2722 /^--?./ && do { push(@Cmd_opts, $_); next arg; };
2724 if (/\.([^_]+_)?[oa]$/) {
2725 push(@Link_file, $_);
2727 push(@Input_file, $_);
2730 # input files must exist:
2732 print STDERR "$Pgm: input file doesn't exist: $_\n";
2740 When saving an intermediate file (.hc or .s) away, we
2741 have to prefix any OPTIONS found in the original source file.
2744 sub saveIntermediate {
2745 local ($final,$suffix,$tmp)= @_ ;
2748 # $final -- root of where to park ${final}.${suffix}
2749 # $tmp -- temporary file where hsc put the intermediate file.
2751 # Delete the old file
2752 $to_do = "$Rm ${final}.${suffix}"; &run_something($to_do, "Removing old .${suffix} file");
2754 if ( $#File_options >= 0 ) { # OPTIONS found in Haskell source unit
2755 # Add OPTION comment to the top of the generated .${suffix} file
2756 open(TEMP, "> ${final}.${suffix}") || &tidy_up_and_die(1,"Can't open ${final}.${suffix}\n");
2757 print TEMP "/* OPTIONS " . join(' ',@File_options) . " */\n";
2759 print STDERR "Prepending OPTIONS: " . join(' ',@File_options) . " to ${final}.${suffix}\n" if $Verbose;
2761 $to_do = "$Cat $tmp >> ${final}.${suffix}";
2762 &run_something($to_do, "Saving copy of .${suffix} file");
2769 Command-line processor
2775 # can't use getopt(s); what we want is too complicated
2777 arg: while($_ = $Args[0]) {
2780 #---------- help -------------------------------------------------------
2781 if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; }
2783 #-----------version ----------------------------------------------------
2784 /^--version$/ && do { print STDERR "${ProjectName}, version ${ProjectVersion}, patchlevel ${ProjectPatchLevel}\n"; exit $Status; };
2786 #---------- verbosity and such -----------------------------------------
2787 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
2789 #---------- what phases are to be run ----------------------------------
2790 /^-(no-)?recomp/ && do { $Do_recomp_chkr = ($1 eq '') ? 1 : 0; next arg; };
2792 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
2793 # change the global default:
2794 # we won't run cat; we'll run the real thing
2796 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
2798 # stop after generating C
2800 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
2801 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
2803 # leave out actual C generation (debugging) [also turns off interface gen]
2806 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
2807 # _do_ generate an interface; usually used as: -noC -hi
2808 /^-hi-with-(.*)$/ && do { $HiOnStdout = 1; $HiWith .= " $1" ; $ProduceHi = '-hifile='; next arg; };
2809 # limit ourselves to outputting a particular section.
2811 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
2812 # don't generate an interface (even if generating C)
2814 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
2815 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
2816 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
2817 /^-keep-hi-diffs$/ && do { $Keep_HiDiffs = 1; next arg; };
2819 # show/disable diffs if the interface file changes
2821 /^-E$/ && do { push(@CcBoth_flags, '-E');
2822 $Only_preprocess_C = 1;
2823 $Do_as = 0; $Do_lnkr = 0; next arg; };
2824 # stop after preprocessing C
2825 /^-M$/ && do { $Only_generate_deps = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2826 # only generate dependency information.
2827 /^--mk-dll$/ && do { $Only_generate_dll = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2828 # Build a Win32 DLL (where supported).
2829 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
2830 # stop after generating assembler
2832 /^-c$/ && do { $Do_lnkr = 0; next arg; };
2833 # stop after generating .o files
2835 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
2836 # don't do consistency-checking after a link
2837 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
2839 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', '');
2840 $Tmp_prefix = "$Tmp_prefix/ghc$$";
2841 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
2843 # use an alternate directory for temp files
2845 #---------- redirect output --------------------------------------------
2847 # -o <file>; applies to the last phase, whatever it is
2848 # "-o -" sends it to stdout
2849 # if <file> has a directory component, that dir must already exist
2851 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', '');
2853 # Hack, of the worst sort: don't do validation of
2854 # odir argument if you're using -M (dependency generation).
2856 if ( ! $Only_generate_deps && ! -d $Specific_output_dir) {
2857 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
2862 /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', '');
2863 if ($Specific_output_file ne '-'
2864 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
2865 local($dir_part) = $1;
2866 if (! -d $dir_part) {
2867 print STDERR "$Pgm: no such directory: $dir_part\n";
2873 # NB: -isuf not documented yet (because it doesn't work yet)
2874 /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', '');
2875 if ($Isuffix =~ /\./ ) {
2876 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
2881 /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', '');
2882 if ($Osuffix =~ /\./ ) {
2883 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
2888 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
2889 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', '');
2890 if ($Specific_hi_file ne '-'
2891 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
2892 local($dir_part) = $1;
2893 if (! -d $dir_part) {
2894 print STDERR "$Pgm: no such directory: $dir_part\n";
2898 $ProduceHi='-hifile=';
2901 # The suffix to use when looking for interface files
2902 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', '');
2903 if ($HiSuffix =~ /\./ ) {
2904 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
2908 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', '');
2909 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
2910 local($dir_part) = $1;
2911 if (! -d $dir_part) {
2912 print STDERR "$Pgm: no such directory: $dir_part\n";
2918 #-------------- scc & Profiling Stuff ----------------------------------
2920 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
2922 /^-auto-dicts$/ && do {
2923 $PROFdicts = '-fauto-sccs-on-dicts';
2925 /^-auto-all$/ && do {
2926 $PROFauto = '-fauto-sccs-on-all-toplevs';
2929 $PROFauto = '-fauto-sccs-on-exported-toplevs';
2932 /^-caf-all/ && do { # generate individual CAF SCC annotations
2933 $PROFcaf = '-fauto-sccs-on-individual-cafs';
2936 /^-ignore-scc$/ && do {
2937 # forces ignore of scc annotations even if profiling
2938 $PROFignore_scc = '-W';
2941 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
2944 /^-unprof-scc-auto/ && do {
2945 # generate auto SCCs on top level bindings when not profiling.
2946 # Used to measure optimisation effects of presence of sccs.
2947 $UNPROFscc_auto = ( /-all/ )
2948 ? '-fauto-sccs-on-all-toplevs'
2949 : '-fauto-sccs-on-exported-toplevs';
2952 #--------- ticky/parallel ----------------------------------------------
2953 # we sort out the details a bit later on
2955 /^-gransim$/ && do { $GRANing = 'g'; &add_syslib('concurrent'); next arg; }; # GranSim
2956 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
2957 /^-parallel$/ && do { $PARing = 'p'; &add_syslib('concurrent'); next arg; }; # parallel Haskell
2959 #-------------- "user ways" --------------------------------------------
2961 (/^-user-setup-([a-oA-Z])$/ ) &&
2963 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
2965 local($stuff) = $UserSetupOpts{$BuildTag};
2966 local(@opts) = split(/\s+/, $stuff);
2968 # feed relevant ops into the arg-processing loop (if any)
2969 unshift(@Args, @opts) if $#opts >= 0;
2973 #---------- set search paths for libraries and things ------------------
2975 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
2976 # prepends the items to the list); -I is for including C .h files.
2978 /^-i$/ && do { @Import_dir = (); # import path cleared!
2979 @SysImport_dir = ();
2980 print STDERR "WARNING: import paths cleared by `-i'\n";
2983 /^-i(.*)/ && do { local(@new_items)
2984 = split( /:/, &grab_arg_arg(*Args,'-i', $1));
2985 unshift(@Import_dir, @new_items);
2988 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; };
2989 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; };
2990 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; };
2992 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1);
2993 &add_syslib($syslib);
2996 #=======================================================================
2997 # various flags that we can harmlessly send to one program or another
2998 # (we will later "reclaim" some of the compiler ones now sent to gcc)
2999 #=======================================================================
3001 #---------- this driver itself (ghc) -----------------------------------
3002 # these change what executable is run for each phase:
3003 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
3004 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
3005 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
3006 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
3007 /^-pgma(.*)$/ && do { $As = $1; next arg; };
3008 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
3009 /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; };
3011 #---------- the get-anything-through opts (all pgms) -------------------
3012 # these allow arbitrary option-strings to go to any phase:
3013 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
3014 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
3015 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
3016 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
3017 /^-optp(.*)$/ && do { push(@HsP_flags, $1); next arg; };
3018 /^-optcpp(.*)$/ && do { push(@Cpp_define, $1); $Only_preprocess_hc = ($1 eq "-E"); next arg; };
3019 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
3020 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
3021 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
3022 /^-optdll(.*)$/ && do { push(@Dll_flags, $1); next arg; };
3023 /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; };
3025 #---------- Haskell C pre-processor (hscpp) ----------------------------
3026 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; };
3027 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; };
3029 #---------- post-Haskell "assembler"------------------------------------
3030 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
3031 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
3033 #---------- Haskell compiler (hsc) -------------------------------------
3035 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
3036 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
3038 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
3039 /^-fignore-asserts$/ && do { push(@HsC_flags, $_); next arg; };
3041 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
3044 # have the compiler proper generate concurrent code,
3045 # really only used when you want to configure your own
3046 # special user compilation way.
3048 # (ditto for -fgransim, fscc-profiling, -fparallel and -fticky-ticky)
3050 /^-fscc-profiling$/ && do { push(@HsC_flags,$_); next arg; };
3051 /^-fticky-ticky$/ && do { push(@HsC_flags,$_); next arg; };
3052 /^-fgransim$/ && do { push(@HsC_flags,$_); next arg; };
3053 /^-fparallel$/ && do { push(@HsC_flags,$_); next arg; };
3055 /^-split-objs$/ && do {
3056 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|rs6000|sparc)-/ ) {
3058 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
3063 push(@HsC_flags, "-fglobalise-toplev-names");
3064 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
3066 require('ghc-split.prl')
3067 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
3071 /^-unreg$/ && do { $UNREGing = 'u'; next arg; };
3072 /^-funregisterised$/ && do { push(@HsC_flags, $_); next arg; };
3073 /^-fno-asm-mangling$/ && do { $DoAsmMangling = 0; next arg; };
3075 /^-fallow-overlapping-instances$/ && do { push(@HsC_flags, $_); next arg; };
3076 /^-fallow-undecidable-instances$/ && do { push(@HsC_flags, $_); next arg; };
3077 /^-fhistory-size.*$/ && do { push(@HsC_flags, $_); next arg; };
3079 && do { push(@HsC_flags, $_);
3080 push(@HsP_flags, '-N');
3082 # -fglasgow-exts implies -syslib exts
3083 &add_syslib('exts');
3088 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
3089 /^-fno-speciali[sz]e$/
3090 && do { $Oopt_DoSpecialise = ''; next arg; };
3093 && do { $Oopt_UsageSPInf = '-fusagesp';
3094 push (@HsC_flags, '-fusagesp-on'); next arg; };
3096 /^-fcompiling-prelude$/ && do { $CompilingPrelude=1; push(@HsC_flags, $_); next arg; };
3098 # Now the foldr/build options, which are *on* by default (for -O).
3101 && do { $Oopt_FoldrBuild = 1;
3105 /^-fno-foldr-build$/
3106 && do { $Oopt_FoldrBuild = 0;
3109 # --------------- Renamer -------------
3112 /^-fno-prune-tydecls$/ && do { push(@HsC_flags, $_); next arg; };
3113 /^-fno-prune-instdecls$/ && do { push(@HsC_flags, $_); next arg; };
3117 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
3118 /^-fvia-[cC]$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
3123 && do { push(@HsC_flags, $_); next arg };
3125 /^-funfold-casms-in-hi-file$/
3126 && do { push(@HsC_flags, $_); next arg };
3128 /^(-fmax-simplifier-iterations)(.*)$/
3129 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2);
3132 /^-fno-pedantic-bottoms$/
3133 && do { $Oopt_PedanticBottoms = ''; next arg; };
3135 /^-fno-pre-inlining$/
3136 && do { push(@HsC_flags, $_); next arg };
3138 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
3139 && do { push(@HsC_flags, $_); next arg; };
3141 /^-funbox-strict-fields$/
3142 && do { push(@HsC_flags, $_); next arg; };
3144 # --------------- Warnings etc. ------
3146 /^-fwarn-(.*)$/ && do { push(@HsC_flags, $_); next arg; };
3148 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
3149 &squashHscFlag("-f$1");
3152 /^-W$/ && do { push(@HsC_flags, @MinusWOpts); next arg; };
3153 /^-Wall$/ && do { push(@HsC_flags, @MinusWallOpts); next arg; };
3154 /^(-Wnot|w)$/ && do { foreach (@Hsc_flags) {
3155 /^-fwarn-(.*)$/ && do { $_=''; };
3157 push(@HsC_antiflags, @StandardWarnings);
3160 # --------------- fun stuff ----------------
3162 /^-freport-compile$/ && do { push(@HsC_flags, $_); next arg; };
3164 # --------------- platform specific flags (for gcc mostly) ----------------
3166 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes,
3167 # for 2.6.x..?, does not apply for 2.7.2
3169 unshift(@CcBoth_flags, ( $_ ));
3172 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
3173 && do { # for GCC for SPARCs
3174 unshift(@CcBoth_flags, ( $_ ));
3177 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
3178 $StolenX86Regs = $1;
3181 #*************** ... and lots of debugging ones (form: -d* )
3183 # -d(no-)core-lint is done this way so it is turn-off-able.
3184 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
3185 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
3186 # Ditto for USP lint
3187 /^-dusagesp-lint/ && do { $USPLint = '-dusagesp-lint'; next arg; };
3188 /^-dno-usagesp-lint/ && do { $USPLint = ''; next arg; };
3189 # Ditto for STG lint
3190 /^-dstg-lint/ && do { $StgLint = '-dstg-lint'; next arg; };
3191 /^-dno-stg-lint/ && do { $StgLint = ''; next arg; };
3193 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
3194 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
3195 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
3196 /^-dshow-rn-stats/ && do { push(@HsC_flags, $_); next arg; };
3197 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
3198 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
3199 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
3200 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
3202 #*************** ... and now all these -R* ones for its runtime system...
3204 /^-Rscale-sizes?(.*)/ && do {
3205 $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1);
3208 /^(-H|-Rmax-heapsize)(.*)/ && do {
3209 local($heap_size) = &grab_arg_arg(*Args,$1, $2);
3210 if ($heap_size =~ /(\d+)[Kk]$/) {
3211 $heap_size = $1 * 1000;
3212 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
3213 $heap_size = $1 * 1000 * 1000;
3214 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
3215 $heap_size = $1 * 1000 * 1000 * 1000;
3217 if ($heap_size <= 0) {
3218 print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n";
3219 $Specific_heap_size = 0;
3221 # if several heap sizes given, take the largest...
3222 } elsif ($heap_size >= $Specific_heap_size) {
3223 $Specific_heap_size = $heap_size;
3225 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n";
3229 /^(-K|Rmax-(stk|stack)size)(.*)/ && do {
3231 local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3);
3232 if ($stk_size =~ /(\d+)[Kk]$/) {
3233 $stk_size = $1 * 1000;
3234 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
3235 $stk_size = $1 * 1000 * 1000;
3236 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
3237 $stk_size = $1 * 1000 * 1000 * 1000;
3239 if ($stk_size <= 0) {
3240 print STDERR "$Pgm: resetting stack-size to zero!!! $stk_size\n";
3241 $Specific_stk_size = 0;
3243 # if several stack sizes given, take the largest...
3244 } elsif ($stk_size >= $Specific_stk_size) {
3245 $Specific_stk_size = $stk_size;
3247 print STDERR "$Pgm: ignoring stack-size-setting option ($flag $stk_size)...not the largest seen\n";
3251 /^-Rgc-stats$/ && do { $CollectingGCstats++;
3252 # the two RTSs do this diff ways; we will try to compensate
3255 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
3257 #---------- C high-level assembler (gcc) -------------------------------
3258 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
3260 # -dgcc-lint is a useful way of making GCC very fussy.
3261 # From alan@spri.levels.unisa.edu.au (Alan Modra).
3262 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
3263 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
3264 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
3266 # inject "#include <wurble>" into the compiler's C output!
3268 /^-#include(.*)/ && do {
3269 local($to_include) = &grab_arg_arg(*Args,'-#include', $1);
3270 push(@CcInjects, "#include $to_include\n");
3273 #---------- Linker (gcc, really) ---------------------------------------
3275 /^-static$/ && do { $Static=1; push(@Ld_flags, $_); next arg; };
3276 /^-no-hs-main$/ && do { $NoHaskellMain=1; next arg; };
3278 #---------- mixed cc and linker magic ----------------------------------
3279 # this optimisation stuff is finally sorted out later on...
3281 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
3283 /^-O[1-2]?$/ && do {
3284 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
3285 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
3287 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
3290 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
3292 /^-Ofile(.*)/ && do {
3294 local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1);
3295 @HsC_minusO3_flags = ();
3297 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
3300 s/\#.*//; # death to comments
3301 s/[ \t]+//g; # death to whitespace
3302 next if /^$/; # ditto, blank lines
3303 s/([()*{}])/\\$1/g; # protect shell metacharacters
3305 push(@CcBoth_flags, $1);
3307 push(@HsC_minusO3_flags, $_);
3313 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
3314 # in the consistency info
3318 #---------- linking .a file --------------------------------------------
3320 /^-Main(.*)/ && do {
3321 # specifies main or mainPrimIO to be linked
3325 #---------- catch unrecognized flags -----------------------------------
3328 print STDERR "$Pgm: unrecognised option: $_\n";
3334 } # end of processArgs