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
127 Establish what executables to run for the various phases, what the
128 default options are for those phases, and other similar boring stuff.
131 select(STDERR); $| = 1; select(STDOUT); # no STDERR buffering, please.
133 $TargetPlatform = $TARGETPLATFORM;
135 $TopPwd = "${TOP_PWD}";
136 $InstBinDirGhc = "${bindir}";
137 $InstLibDirGhc = "${libdir}";
139 # Normally the same as InstLibDirGhc, but we accommodate
140 # for it being separate.
142 $InstLibExecDirGhc = "${libexecdir}";
143 $InstDataDirGhc = "${datadir}";
145 $Status = 0; # just used for exit() status
148 # set up signal handler
149 sub quit_upon_signal { &tidy_up_and_die(1, ''); }
150 $SIG{'INT'} = 'quit_upon_signal';
151 $SIG{'QUIT'} = 'quit_upon_signal';
153 # where to get "require"d .prl files at runtime (poor man's dynamic loading)
154 # (use LIB, not DATA, because we can't be sure of arch-independence)
155 @INC = ( ( $INSTALLING ) ? $InstLibDirGhc
156 : "$TopPwd/${CURRENT_DIR}" );
158 if ( $ENV{'TMPDIR'} ) { # where to make tmp file names
159 $Tmp_prefix = ($ENV{'TMPDIR'} . "/ghc$$");
161 print STDERR "TMPDIR has not been set to anything useful!\n" if (${TMPDIR} eq '');
162 $Tmp_prefix ="${TMPDIR}/ghc$$"; # TMPDIR set via Makefile when booting..
163 $ENV{'TMPDIR'} = ${TMPDIR}; # set the env var as well
166 # Some shells run into real trouble when command line and environment
167 # gets big (e.g., cmd lines of >4K to /bin/sh causes havoc on our
168 # Solaris-2.5.1 boxes - even though sysconf(_SC_ARG_MAX) reports 1M ...).
169 # To work around any such */bin/sh* problems, we will scribble such
170 # awfully long command lines into a temp file and exec that temp file
171 # with $(REAL_SHELL) (don't use the SHELL variable directly as this
172 # will normally get you the wrong thing when the driver is invoked
173 # from within `make'). If the REAL_SHELL variable isn't set, you'll
174 # get SHELL. This is all a terrible hack. (in case you hadn't reached
175 # the same conclusion by now :-)
179 if ( ! $ENV{'REAL_SHELL'} ) {
180 $ENV{'REAL_SHELL'} = $ENV{'SHELL'};
183 @Files_to_tidy = (); # files we nuke in the case of abnormal termination
185 $Unlit = ( $INSTALLING ) ? "$InstLibExecDirGhc/unlit"
186 : "$TopPwd/${CURRENT_DIR}/${GHC_UNLIT}";
190 $Diff = $CONTEXT_DIFF;
195 $HsCpp = # but this is re-set to "cat" (after options) if -cpp not seen
196 ( $INSTALLING ) ? "$InstLibExecDirGhc/hscpp"
197 : "$TopPwd/${CURRENT_DIR}/${GHC_HSCPP}";
200 $HsC = ( $INSTALLING ) ? "$InstLibExecDirGhc/hsc"
201 : "$TopPwd/${CURRENT_DIR}/${GHC_HSC}";
203 # For PVM fiends only
204 $SysMan = ( $INSTALLING ) ? "$InstLibExecDirGhc/SysMan"
205 : "$TopPwd/${CURRENT_DIR}/${GHC_SYSMAN}";
210 # HsC_rts_flags: if we want to talk to the LML runtime system
211 # NB: we don't use powers-of-2 sizes, because this may do
212 # terrible things to cache behavior.
214 $Specific_heap_size = 6 * 1000 * 1000;
215 $Specific_stk_size = 1000 * 1000;
216 $Scale_sizes_by = 1.0;
220 The variables set by @setupOptFlags@ represent parts of the
221 -O/-O2/etc ``templates,'' which are filled in later, using these.
222 These are the default values, which may be changed by user flags.
226 $Oopt_MaxSimplifierIterations = '-fmax-simplifier-iterations4';
227 $Oopt_PedanticBottoms = '-fpedantic-bottoms'; # ON by default
228 $Oopt_FinalStgProfilingMassage = '';
230 $Oopt_DoSpecialise = '-fspecialise';
231 $Oopt_FoldrBuild = 0; # *Off* by default!
232 $Oopt_UsageSPInf = ''; # Off by default
233 } # end of setupOptFlags
235 # Assign defaults to these right away.
239 Things to do with C compilers/etc:
241 (added -Wimplicit: implicit prototypes cause very hard-to-find
242 problems, so I'm turing on the warnings -- SDM 4/5/98)
245 $CcRegd = $GHC_OPT_HILEV_ASM;
246 @CcBoth_flags = ('-S','-Wimplicit'); # flags for *any* C compilation
250 # those for all files,
251 # those only for .c files;
252 # those only for .hc files
255 @CcRegd_flags_c = ();
256 @CcRegd_flags_hc = ();
258 $As = ''; # "assembler" is normally GCC
261 $Lnkr = ''; # "linker" is normally GCC
265 # 'nm' is used for consistency checking (ToDo: mk-world-ify)
266 # ToDo: check the OS or something ("alpha" is surely not the crucial question)
267 $Nm = ($TargetPlatform =~ /^alpha-/) ? 'nm -B' : 'nm';
270 Warning packages that are controlled by -W and -Wall. The 'standard'
271 warnings that you get all the time are
273 -fwarn-overlapping-patterns
274 -fwarn-missing-methods
275 -fwarn-duplicate-exports
277 these are turned off by -Wnot.
280 @StandardWarnings = ('-fwarn-overlapping-patterns',
281 '-fwarn-missing-methods',
282 '-fwarn-duplicate-exports');
283 @MinusWOpts = (@StandardWarnings,
284 '-fwarn-unused-binds',
285 '-fwarn-unused-matches',
286 '-fwarn-incomplete-patterns',
287 '-fwarn-unused-imports');
288 @MinusWallOpts = (@MinusWOpts,
289 '-fwarn-type-defaults',
290 '-fwarn-name-shadowing',
291 '-fwarn-missing-signatures');
294 What options \tr{-user-setup-a} turn into (user-defined ``packages''
296 of options). Note that a particular user-setup implies a particular
297 Prelude ({\em including} its interface file(s)).
299 $BuildTag = ''; # default is sequential build w/ Appel-style GC
301 %BuildDescr = (# system ways begin
302 '', 'Normal Sequential',
304 '_t', "Ticky-ticky Profiling",
305 '_u', "Unregisterised",
325 '_B', "$WAY_B_NAME" );
327 # these are options that are "fed back" through the option processing loop
331 '_a', "$WAY_a_REAL_OPTS",
332 '_b', "$WAY_b_REAL_OPTS",
333 '_c', "$WAY_c_REAL_OPTS",
334 '_d', "$WAY_d_REAL_OPTS",
335 '_e', "$WAY_e_REAL_OPTS",
336 '_f', "$WAY_f_REAL_OPTS",
337 '_g', "$WAY_g_REAL_OPTS",
338 '_h', "$WAY_h_REAL_OPTS",
339 '_i', "$WAY_i_REAL_OPTS",
340 '_j', "$WAY_j_REAL_OPTS",
341 '_k', "$WAY_k_REAL_OPTS",
342 '_l', "$WAY_l_REAL_OPTS",
343 '_m', "$WAY_m_REAL_OPTS",
344 '_n', "$WAY_n_REAL_OPTS",
345 '_o', "$WAY_o_REAL_OPTS",
346 '_A', "$WAY_A_REAL_OPTS",
347 '_B', "$WAY_B_REAL_OPTS",
350 '_p', "-fscc-profiling -DPROFILING -optc-DPROFILING",
351 '_t', "-fticky-ticky -DTICKY_TICKY -optc-DTICKY_TICKY",
352 '_u', "-optc-DNO_REGS -optc-DUSE_MINIINTERPRETER -fno-asm-mangling -funregisterised",
353 '_mp', "-fstack-check -fparallel -D__PARALLEL_HASKELL__ -optc-DPAR",
354 '_mg', "-fstack-check -fconcurrent -fgransim -D__GRANSIM__ -D__CONCURRENT_HASKELL__ -optc-DCONCURRENT -optc-DGRAN");
356 # where to look for interface files (system hi's, i.e., prelude and syslibs)
357 @SysImport_dir = ( $INSTALLING )
358 ? ( "$InstLibDirGhc/imports/std" )
359 : ( "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std" );
361 # We need to look in ghc/ and glaExts/ when searching for implicitly needed .hi files, but
362 # we should really *not* look there for explicitly imported modules.
364 $Haskell1Version = 5; # i.e., Haskell 1.4
367 # Cpp symbols defined when we're processing Haskell source.
370 ( "-D__HASKELL1__=$Haskell1Version"
371 , "-D__GLASGOW_HASKELL__=$ProjectVersionInt"
373 , "-D__CONCURRENT_HASKELL__"
377 @SysLibrary_dir = ( ( $INSTALLING ) #-syslib things supplied by the system
379 : ( "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR"
380 , "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/gmp"
381 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std"
382 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/std/cbits"
386 $TopClosureFile # defaults to 1.2 one; will be mangled later
388 # ( $INSTALLING) ? "$InstLibDirGhc/TopClosureXXXX.o"
389 # : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/main/TopClosureXXXX.o";
391 # make depend for Haskell
393 = ( $INSTALLING ) ? "$InstLibExecDirGhc/mkdependHS"
394 : "$TopPwd/$CURRENT_DIR/$GHC_UTILS_DIR/mkdependHS/mkdependHS";
396 @MkDependHS_flags = ();
398 # do_link flag should not be reset while rescanning the cmd-line.
400 $Specific_output_dir = ''; # set by -odir <dir>
401 $Specific_output_file = ''; # set by -o <file>; "-" for stdout
404 Function to initialise the per-compilation-unit globals that
405 are used to guide and control the invocation of the different phases.
408 sub initDriverGlobals {
410 # reset the following options:
411 # RTS flags to use while compiling
417 The optimisations/etc to be done by the compiler are {\em normally}
418 expressed with a \tr{-O} (or \tr{-O2}) flag, or by its absence.
421 $OptLevel = 0; # no -O == 0; -O == 1; -O2 == 2; -Ofile == 3
422 $MinusO2ForC = 0; # set to 1 if -O2 should be given to C compiler
423 $StolenX86Regs = 4; # **HACK*** of the very worst sort
428 @Import_dir = ('.'); #-i things
429 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
431 @UserLibrary_dir= (); #-L things;...
432 @UserLibrary = (); #-l things asked for by the user
434 @SysLibrary = (); # will be built up as we go along
437 We are given a list of files with various presumably-known suffixes
438 (unknown-suffix files go straight to the linker). For each file, we
439 begin by assuming that we'll run every phase over it. However: (1)
440 global flags (\tr{-c}, \tr{-S}, etc.) tell us not to run any phase
441 past a certain point; and (2) the file's suffix tells us what phase to
442 start with. Linking is weird and kept track of separately.
444 Here are the initial defaults applied to all files:
446 $Cpp_flag_set = 0; # (hack)
447 $Only_preprocess_C = 0; # pretty hackish
448 $Only_preprocess_hc = 0; # ditto
449 $Only_generate_deps = 0; # ""
450 $Only_generate_dll = 0;
451 $PostprocessCcOutput = 0;
454 # static = 0 => produce code for DLLs (when compiling & linking.)
456 $Static = 0 if ($EnableWin32DLLs eq 'YES');
458 # native code-gen or via C?
459 $HaveNativeCodeGen = $GhcWithNativeCodeGen;
460 $HscOut = '-C='; # '-C=' ==> .hc output; '-S=' ==> .s output; '-N=' ==> neither
462 if ($HaveNativeCodeGen ne 'YES') && $TargetPlatform =~ /^(alpha)-/;
463 # TEMP: disable x86 & Sparc if $HaveNativeCodeGen && $TargetPlatform =~ /^(i386|alpha|sparc)-/;
464 $ProduceHi = '-hifile=';
470 $CollectingGCstats = 0;
471 $CollectGhcTimings = 0;
472 $DEBUGging = ''; # -DDEBUG and all that it entails (um... not really)
473 $PROFing = ''; # set to p or e if profiling
474 $PROFgroup = ''; # set to group if an explicit -Ggroup specified
475 $PROFauto = ''; # set to relevant hsc flag if -auto or -auto-all
476 $PROFcaf = ''; # set to relevant hsc flag if -caf-all
477 $PROFdict = ''; # set to relevant hsc flag if -auto-dicts
478 $PROFignore_scc = ''; # set to relevant parser flag if explicit sccs ignored
479 $UNPROFscc_auto = ''; # set to relevant hsc flag if forcing auto sccs without profiling
480 $TICKYing = ''; # set to t if compiling for ticky-ticky profiling
481 $PARing = ''; # set to p if compiling for PAR
482 $GRANing = ''; # set to g if compiling for GRAN
483 $UNREGing = ($GhcWithRegisterised eq 'YES') ? '' : 'u';
484 $Specific_hi_file = ''; # set by -ohi <file>; "-" for stdout
485 $Specific_dump_file = ''; # set by -odump <file>; "-" for stdout
486 $Using_dump_file = 0;
488 $Osuffix = ''; # default: use the normal suffix for that kind of output
490 $HiSuffix_prelude = '';
492 $Do_recomp_chkr = 0; # don't use the recompilatio checker unless asked
493 $Do_cc = -1; # a MAGIC indeterminate value; will be set to 1 or 0.
496 $Keep_hc_file_too = 0;
497 $Keep_s_file_too = 0;
498 $UseGhcInternals = 0; # if 1, may use GHC* modules
500 $DoAsmMangling = 1; # on by default, off by -fno-asm-mangling
502 $Dump_parser_output = 0;
504 $Dump_asm_splitting_info = 0;
505 $NoImplicitPrelude = 0;
506 # 1 => don't tell the linker to hoist in PrelMain.Main, as an
507 # external main is provided instead.
510 } # end of initDriverGlobals (Sigh)
512 # we split the argv passed to the driver into three:
517 # and files to be linked...
523 # cmd line options prefixing the unit we're compiling
528 We inject consistency-checking information into \tr{.hc} files (both
529 when created by the Haskell compiler and when compiled by the C
530 compiler), so that we can check that an executable is made from
531 consistently-built pieces. (The check is normally done just after
532 linking.) The checking is done by introducing/munging
533 \tr{what(1)}-style strings. Anyway, here are the relevant global
534 variables and their defaults:
536 $LinkChk = 0; # set to 0 if the link check should *not* be done
538 # major & minor version numbers; major numbers must always agree;
539 # minor disagreements yield a warning.
540 $HsC_major_version = $HscMajorVersion;
541 $HsC_minor_version = $HscMinorVersion;
542 $Cc_major_version = $CcMajorVersion;
543 $Cc_minor_version = $CcMinorVersion;
545 # options: these must always agree
546 $HsC_consist_options = ''; # we record, in this order:
547 # Build tag; debugging?
548 $Cc_consist_options = ''; # we record, in this order:
549 # Build tag; debugging?
552 %************************************************************************
554 \section[Driver-parse-argv]{Munge the command-line options}
556 %************************************************************************
558 Now slurp through the arguments.
561 &initDriverGlobals();
562 &splitCmdLine(@ARGV);
563 # Run through the cmd-line first time.
564 &processArgs(@Cmd_opts);
566 # Check to see if driver is only in the business
567 # to generate dependencies
568 if ( $Status == 0 && $Only_generate_deps ) {
570 push (@MkDependHS_flags, "-o$Osuffix") if $Osuffix;
571 push (@MkDependHS_flags, "-s$BuildTag") if $BuildTag;
572 # They're not (currently) needed, but we need to quote any -#include options
573 foreach (@Cmd_opts) {
574 s/-#include.*$/'$&'/g;
576 local($to_do) = "$MkDependHS @MkDependHS_flags @HsSourceCppOpts -- @Cmd_opts -- @Input_file" ;
577 &run_something($to_do, 'Haskell dependencies');
581 # ..or just to construct a (Haskell) DLL.
582 if ( $Status == 0 && $Only_generate_dll && $EnableWin32DLLs ) {
588 # if there are several input files,
589 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
590 # (except if linking, of course)
592 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
593 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
594 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
595 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
596 print STDERR "\tPerhaps the -odir option will do what you want.\n";
601 # check for various pathological -o and -odir combinations...
602 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
603 if ($Specific_output_file eq '-') {
604 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
606 } else { # amalgamate...
607 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
608 # ToDo: check we haven't got a junk name now...
609 $Specific_output_dir = ''; # reset
613 # crash and burn if there were errors
615 print STDERR $ShortUsage;
620 %************************************************************************
622 \section[Driver-post-argv-mangling]{Setup after reading options}
624 %************************************************************************
626 %************************************************************************
628 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
630 %************************************************************************
632 We come now to the default ``wads of options'' that are turned on by
633 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
634 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
637 The user can also specify his/her own list of options in a file; in
638 that case, the work is already done (see stuff about @minusO3@,
641 GHC allows very precise control of what happens during a compilation.
642 Core-to-Core and STG-to-STG passes can be run in any order, as many
643 times as you like. Individual transformations can be turned on or
646 Sadly, however, there are some interdependencies \& Things You Must
647 Not Do. Here is the list.
651 \item[\tr{-fspecialise}:]
652 The specialiser must have dependency-analysed input; but if you run
653 the simplifier to do this, you must not let it toss away unused
654 bindings! (The typechecker conveys some specialisation info via
655 ``unused'' bindings...)
657 \item[\tr{-ffloat-inwards}:]
658 Floating inwards should be done before strictness analysis, because
659 the latter will give better results.
661 \item[\tr{-fstatic-args}:]
662 The static-arguments-transformation pass {\em must} have the
663 simplifier run right after it.
665 \item[\tr{-fcalc-inlinings[12]}:]
666 Not required, but there may be slight gains by re-simplifying after
667 this is done. (You could then \tr{-fcalc-inlinings} again, just for
670 \item[\tr{-ffull-laziness}:]
671 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
672 that's run. (Um, well, howzabout the simplifier just once more...)
677 \item[\tr{-fupdate-analysis}:]
678 It really really wants to be the last STG-to-STG pass that is run.
683 sub setupOptimiseFlags {
685 # this pass-ordering sequence was agreed by Simon and Andr\'e
686 # (WDP 94/07, 94/11).
693 $Oopt_MaxSimplifierIterations,
697 $Oopt_FinalStgProfilingMassage
700 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
704 '-fdo-eta-reduction',
705 '-fdo-lambda-eta-expansion',
709 $Oopt_PedanticBottoms,
711 # initial simplify: mk specialiser happy: minimum effort please
715 '-finline-phase0', # Don't inline anything till full laziness has bitten
716 # In particular, inlining wrappers inhibits floating
717 # e.g. ...(case f x of ...)...
718 # ==> ...(case (case x of I# x# -> fw x#) of ...)...
719 # ==> ...(case x of I# x# -> case fw x# of ...)...
720 # and now the redex (f x) isn't floatable any more
721 '-fmax-simplifier-iterations2',
724 # Specialisation is best done before full laziness
725 # so that overloaded functions have all their dictionary lambdas manifest
726 ($Oopt_DoSpecialise) ? ( $Oopt_DoSpecialise, ) : (),
732 # # Run the simplifier before specialising, so that overloaded functions
733 # # look like f = \d -> ...
734 # # (Full laziness may lift out something hiding the \d
736 # '-fmax-simplifier-iterations1',
743 # Want to run with inline phase 1 after the specialiser to give
744 # maximum chance for fusion to work before we inline build/augment
745 # in phase 2. This made a difference in 'ansi' where an overloaded
746 # function wasn't inlined till too late.
747 $Oopt_MaxSimplifierIterations,
750 $Oopt_UsageSPInf, # infer usage information here in case we need it later.
751 # (add more of these where you need them --KSW 1999-04)
755 # Need inline-phase2 here so that build/augment get
756 # inlined. I found that spectral/hartel/genfft lost some useful
757 # strictness in the function sumcode' if augment is not inlined
758 # before strictness analysis runs
761 $Oopt_MaxSimplifierIterations,
771 $Oopt_MaxSimplifierIterations,
772 # No -finline-phase: allow all Ids to be inlined now
775 '-fcse', # CSE must immediately follow a simplification pass, because it relies
776 # on the no-shadowing invariant. See comments at the top of CSE.lhs
778 '-ffull-laziness', # nofib/spectral/hartel/wang doubles in speed if you
779 # do full laziness late in the day. It only happens
780 # after fusion and other stuff, so the early pass doesn't
781 # catch it. For the record, the redex is
782 # f_el22 (f_el21 r_midblock)
785 # Case-liberation for -O2. This should be after
786 # strictness analysis and the simplification which follows it.
790 # : "-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 ]" ),
792 # Final clean-up simplification:
796 $Oopt_MaxSimplifierIterations,
797 # No -finline-phase: allow all Ids to be inlined now
804 $Oopt_FinalStgProfilingMassage,
810 # SPECIAL FLAGS for -O2
812 '-fupdate-analysis', # virtually useless; relegated to -O2
819 Sort out what we're going to do about optimising. First, the @hsc@
820 flags and regular @cc@ flags to worry about:
822 if ( $OptLevel <= 0 ) {
824 # for this level, we tell the parser -fignore-interface-pragmas
825 push(@HsC_flags, '-fignore-interface-pragmas');
826 # and tell the compiler not to produce them
827 push(@HsC_flags, '-fomit-interface-pragmas');
829 &add_Hsc_flags( @HsC_minusNoO_flags );
830 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
832 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
834 &add_Hsc_flags( @HsC_minusO_flags );
835 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
836 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
837 # but it *is* useful in compiling the garbage collector.
839 } else { # -Ofile, then...
841 &add_Hsc_flags( @HsC_minusO3_flags );
842 push(@HsC_flags, $Oopt_FinalStgProfilingMassage) if $Oopt_FinalStgProfilingMassage;
844 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
847 } # setupOptimiseFlags
851 %************************************************************************
853 \subsection{Check for consistency, etc.}
855 %************************************************************************
857 Sort out @$BuildTag@, @$PROFing@, @$PARing@,
858 @$GRANing@, @$TICKYing@, @UNREGing@:
860 sub setupBuildFlags {
863 # PROFILING stuff after argv mangling:
865 # add -auto sccs even if not profiling !
866 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
869 push(@HsC_flags, $PROFauto) if $PROFauto;
870 push(@HsC_flags, $PROFcaf) if $PROFcaf;
871 push(@HsC_flags, $PROFdict) if $PROFdict;
873 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
875 # Ignore user sccs when auto annotating, but warn when doing so.
876 $PROFignore_scc = '-W' if $PROFauto;
878 #if ( $BuildTag ne '' ) {
879 # local($b) = $BuildDescr{$BuildTag};
880 # if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
881 # if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
882 # if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
884 # # ok to have a user-way profiling build
885 # # eval the profiling opts ... but leave user-way BuildTag
886 # if ($PROFing eq 'p') { &processArgs(split(' ', $SetupOpts{'_p'})); } # eval($EvaldSetupOpts{'_p'}); }
888 if ( $PROFing eq 'p' ) {
889 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
890 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
891 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
894 } elsif ( $PARing eq 'p' ) {
895 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
896 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
899 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
900 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
904 } elsif ( $GRANing eq 'g' ) {
905 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
908 } elsif ( $TICKYing eq 't' ) {
911 } elsif ( $UNREGing eq 'u' ) {
912 if ($GhcWithRegisterised eq 'YES') {
918 After the sanity checks, add flags to the necessary parts of the driver pipeline:
921 if ( $BuildTag ne '' ) { # something other than normal sequential...
923 local($Tag) = "${BuildTag}";
924 $Tag =~ s/_//; # move the underscore to the back
926 $HscOut = '-C='; # must go via C
927 &processArgs(split(' ', $SetupOpts{$BuildTag}));
928 # eval($EvaldSetupOpts{$BuildTag});
932 Decide what the consistency-checking options are in force for this run:
935 $HsC_consist_options = "${BuildTag},${DEBUGging}";
936 $Cc_consist_options = "${BuildTag},${DEBUGging}";
939 # Funny place to put it, but why not.
941 if ( $HiSuffix_prelude eq '' ) {
943 if ($CompilingPrelude) {
944 $HiSuffix_prelude = "$HiSuffix" if $CompilingPrelude;
946 local($Tag) = "${BuildTag}";
949 $Tag = "${Tag}_" if $Tag ne '';
950 $HiSuffix_prelude="${Tag}hi";
956 %************************************************************************
958 \subsection{Add on machine-specific C-compiler flags}
960 %************************************************************************
962 Shove on magical machine-specific options. We use \tr{unshift} to
963 stick them on the {\em front} of the arrays, so that ``later''
964 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
966 Note: a few ``always apply'' flags were set at the very beginning.
971 if ($TargetPlatform =~ /^alpha-/) {
972 unshift(@CcBoth_flags, ('-static'));
974 } elsif ($TargetPlatform =~ /^hppa/) {
975 unshift(@CcBoth_flags, ('-static'));
977 # We don't put in '-mlong-calls', because it's only
978 # needed for very big modules (sigh), and we don't want
979 # to hobble ourselves further on all the other modules
982 # [Dated comment (gcc-2.6.x?), -mlong-calls is no longer
983 # a supported gcc HPPA flag]
984 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
985 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
986 # (very nice, but too bad the HP /usr/include files don't agree.)
988 } elsif ($TargetPlatform =~ /^i386-/) {
989 # -fno-defer-pop : basically the same game as for m68k
991 # -fomit-frame-pointer : *must* in .hc files; because we're stealing
992 # the fp (%ebp) for our register maps.
994 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
995 unshift(@CcRegd_flags_hc, '-fomit-frame-pointer');
996 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
998 unshift(@CcBoth_flags, ('-DDONT_WANT_WIN32_DLL_SUPPORT')) if ($Static);
1000 } elsif ($TargetPlatform =~ /^m68k-/) {
1001 # -fno-defer-pop : for the .hc files, we want all the pushing/
1002 # popping of args to routines to be explicit; if we let things
1003 # be deferred 'til after an STGJUMP, imminent death is certain!
1005 # -fomit-frame-pointer : *don't*
1006 # It's better to have a6 completely tied up being a frame pointer
1007 # rather than let GCC pick random things to do with it.
1008 # (If we want to steal a6, then we would try to do things
1009 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1011 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1012 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1013 # maybe gives reg alloc a better time
1014 # also: -fno-defer-pop is not sufficiently well-behaved without it
1016 } elsif ($TargetPlatform =~ /^mips-/) {
1017 unshift(@CcBoth_flags, ('-static'));
1019 } elsif ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1020 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1021 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1022 } elsif ($TargetPlatform =~ /^sparc-/) {
1024 } # end of setupMachOpts
1027 %************************************************************************
1029 \subsection{Set up for warnings}
1031 %************************************************************************
1033 Several warnings are turned on by default. These are supposed to be
1034 the 'I'm pretty sure you've made a mistake here' kind of warnings.
1035 The rest are turned on by the -W and -Wall options, or individually
1036 via their -fwarn and -fno-warn flags.
1039 sub setupWarningFlags {
1040 &add_Hsc_flags( @StandardWarnings );
1044 Same unshifting magic, but for special linker flags.
1046 The configure script determines whether the object file symbol tables
1047 have a leading underscore, and sets @LeadingUnderscore@ accordingly.
1048 (The driver script `sees' the setting of the @LeadingUnderscore@
1049 by having the Makefile prepend it).
1053 local($uscore) = ( ${LeadingUnderscore} eq 'YES' ) ? '_' : '';
1056 (($Ld_main) ? ( '-u', "${uscore}Main_" . $Ld_main . '_closure' ) : ()));
1058 # things that are referenced by the RTS - make sure that we pull 'em in
1060 ( '-u', "${uscore}PrelBase_Izh_static_info"
1061 ,'-u', "${uscore}PrelBase_Czh_static_info"
1062 ,'-u', "${uscore}PrelBase_Fzh_static_info"
1063 ,'-u', "${uscore}PrelBase_Dzh_static_info"
1064 ,'-u', "${uscore}PrelAddr_Azh_static_info"
1065 ,'-u', "${uscore}PrelAddr_Wzh_static_info"
1066 ,'-u', "${uscore}PrelAddr_I64zh_static_info"
1067 ,'-u', "${uscore}PrelAddr_W64zh_static_info"
1068 ,'-u', "${uscore}PrelStable_StablePtr_static_info"
1069 ,'-u', "${uscore}PrelBase_Izh_con_info"
1070 ,'-u', "${uscore}PrelBase_Czh_con_info"
1071 ,'-u', "${uscore}PrelBase_Fzh_con_info"
1072 ,'-u', "${uscore}PrelBase_Dzh_con_info"
1073 ,'-u', "${uscore}PrelAddr_Azh_con_info"
1074 ,'-u', "${uscore}PrelAddr_Wzh_con_info"
1075 ,'-u', "${uscore}PrelAddr_I64zh_con_info"
1076 ,'-u', "${uscore}PrelAddr_W64zh_con_info"
1077 ,'-u', "${uscore}PrelStable_StablePtr_con_info"
1078 ,'-u', "${uscore}PrelBase_False_static_closure"
1079 ,'-u', "${uscore}PrelBase_True_static_closure"
1080 ,'-u', "${uscore}PrelPack_unpackCString_closure"
1081 ,'-u', "${uscore}PrelException_stackOverflow_closure"
1082 ,'-u', "${uscore}PrelException_heapOverflow_closure"
1084 if (!$NoHaskellMain) {
1085 unshift (@Ld_flags,'-u', "${uscore}PrelMain_mainIO_closure");
1087 if ($TargetPlatform =~ /^powerpc-|^rs6000-/) {
1088 # sometimes we have lots of toc entries...
1089 # unshift(@Ld_flags, ('-Xlinker -bbigtoc -Xlinker -bnoquiet'));
1090 unshift(@Ld_flags, ('-Xlinker -bbigtoc'));
1094 } # end of setupLinkOpts
1098 %************************************************************************
1100 \subsection{Set up include paths and system-library enslurpment}
1102 %************************************************************************
1104 Now that we know what garbage-collector, etc., are required, we can
1105 finalise our list of libraries to slurp through, and generally Get
1110 # default includes must be added AFTER option processing
1111 if ( ! $INSTALLING ) {
1112 push (@Include_dir, "$TopPwd/${CURRENT_DIR}/${GHC_INCLUDE_DIR}");
1114 push (@Include_dir, "$InstLibDirGhc/includes");
1115 push (@Include_dir, "$InstLibDirGhc/includes");
1117 } # end of setupIncPaths
1122 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1125 foreach $f (@SysLibrary) {
1126 next if $f =~ /_cbits/;
1127 $f .= $BuildTag if $f =~ /^-lHS/;
1130 # Push library HSrts, plus boring clib bit
1131 push(@SysLibrary, "-lHSrts${BuildTag}");
1134 # RTS compiled with cygwin32, uses the WinMM API
1135 # to implement the itimers, since cygwin.dll does not
1136 # support it. Only reqd. for `ways' that use itimers.
1138 push(@SysLibrary, '-lwinmm') if $TargetPlatform eq 'i386-unknown-cygwin32';
1139 # Note: currently only tested with mingw, may cause conflicts when linking
1141 push(@SysLibrary, '-lwsock32') if ($TargetPlatform =~ /-(mingw32|cygwin32)$/);
1143 # Push the pvm libraries
1144 if ($BuildTag eq '_mp') {
1145 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1146 push(@SysLibrary, "-L$pvmlib", '-lgpvm3', '-lpvm3');
1147 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1148 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1149 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1150 push(@SysLibrary, '-lsocket', '-lnsl');
1154 # Push the GNU multi-precision arith lib; and the math library
1156 # If this machine has GMP already installed, then we'll get the installed
1157 # lib here, because presumably the one in the tree won't have been built.
1159 if ($LibGmp eq 'not-installed') {
1160 push(@SysLibrary, "-lgmp");
1162 push(@SysLibrary, "-l$LibGmp");
1165 push(@SysLibrary, '-lm') if !( $TargetPlatform =~ /^.*(cygwin32|mingw32)$/ );
1168 %************************************************************************
1170 \subsection{Check that this system was built to do what we are asking}
1172 %************************************************************************
1174 Before continuing we check that the appropriate build is available.
1177 #die "$Pgm: no BuildAvail?? $BuildTag\n" if $BuildDescr{$BuildTag} eq '' ; # sanity
1179 if ( $BuildDescr{$BuildTag} eq '' ) {
1180 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1181 "' \"build\" is not available with your GHC setup.\n";
1182 print STDERR "(It was not configured for it at your site.)\n";
1183 print STDERR $ShortUsage;
1187 } # end of setupSyslibs
1191 %************************************************************************
1193 \subsection{Final miscellaneous setup bits before we start going}
1195 %************************************************************************
1197 Record largest specific heapsize, if any.
1199 sub setupHeapStackSize {
1200 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1201 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1202 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1203 push(@HsC_rts_flags, "-K$Specific_stk_size");
1207 If no input or link files seen, then we let 'em feed in stdin; this is
1208 mainly for debugging.
1212 if ($#Input_file < 0 && $#Link_file < 0) {
1213 @Input_file = ( '-' );
1215 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1216 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n" if -t;
1217 while (<STDIN>) { print INF $_; }
1218 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1223 Tell the world who we are, if they asked.
1225 print STDERR "${ProjectName}, version ${ProjectVersion}, patchlevel ${ProjectPatchLevel}\n"
1229 %************************************************************************
1231 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1233 %************************************************************************
1235 Process the input files; don't continue with linking if there are
1236 problems (global variable @$Status@ non-zero).
1238 foreach $ifile (@Input_file) {
1239 &ProcessInputFile($ifile);
1242 # don't link if there were errors...
1243 if ( $Status > 0 ) {
1244 print STDERR $ShortUsage;
1249 # Link if appropriate.
1250 &runLinker() if $Do_lnkr;
1252 # that... that's all, folks!
1254 exit $Status; # will still be 0 if all went well
1257 %************************************************************************
1259 \section[Driver-do-one-file]{How to process a single input file}
1261 %************************************************************************
1264 sub ProcessInputFile {
1265 local($ifile) = @_; # input file name
1266 local($ifile_root); # root of or basename of input file
1267 local($ofile_target); # ultimate output file we hope to produce
1268 # from input file (need to know for recomp
1269 # checking purposes)
1270 local($hifile_target);# ditto (but .hi file)
1271 local($ofile_c_stub_target);
1272 local($ofile_h_stub_target);
1275 Handle the weirdity of input from stdin.
1277 if ($ifile ne '-') {
1278 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1279 $ofile_target = # may be reset later...
1280 ($Specific_output_file ne '' && ! $Do_lnkr)
1281 ? $Specific_output_file
1282 : &odir_ify($ifile_root, 'o');
1283 $hifile_target= ($Specific_hi_file ne '')
1285 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1286 # NB: may change if $ifile_root isn't module name (??)
1287 ($ofile_c_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.c/;
1288 ($ofile_h_stub_target = $ifile) =~s/\.[^\.\/]+$/_stub.h/;
1290 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1291 $ifile_root = '_stdin';
1292 $ofile_target = '_stdout'; # gratuitous?
1293 $hifile_target= '_stdout'; # ditto?
1297 We need to decide what phases of the compilation system we will run
1298 over this file. The defaults are the ones established when processing
1299 flags. (That established what the last phase run for all files is.)
1301 We do the pre-recompilation-checker phases here; the rest later.
1305 Look at the suffix and decide what initial phases of compilation may
1306 be dropped off for this file. Also the rather boring business of
1307 which files are coming-in/going-out.
1309 Again, we'll do the post-recompilation-checker parts of this later.
1311 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1312 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1315 # names of the files to stuff between phases
1316 # defaults are temporaries
1317 local($in_lit2pgm) = $ifile;
1318 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1319 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1320 local($hsc_hi) = "$Tmp_prefix.hi";
1321 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1322 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1323 local($as_out) = $ofile_target;
1325 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
1327 # OK, let's strip off some literate junk..
1329 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
1331 $lit2pgm_hscpp = $ifile;
1337 # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas
1338 &check_for_source_options($lit2pgm_hscpp,$ifile);
1340 # Options found in the source file take a back seat, i.e., we scan
1341 # them first. Only process the command line again if source file
1342 # contained anything of interest *or* there's more than one
1343 # input file (we have to reset the options).
1345 if ( $#Input_file >= 0 || $#File_options >= 0) {
1346 #@File_options = (@File_options, @Cmd_opts);
1348 # Now process the command line
1349 &initDriverGlobals();
1350 &processArgs((@File_options,@Cmd_opts));
1351 print STDERR "\nEffective command line: " .
1352 join(' ',(@File_options,@Cmd_opts)) . "\n" if $Verbose;
1355 # Having got the effective command line scanned, set up
1356 # the various options in prep for some real work.
1358 # check the sanity of the BuildTag we're about to use,
1359 # and if needs be, add some more flags and setup to
1360 # the different phases.
1363 &setupOptimiseFlags();
1366 &setupWarningFlags();
1367 &setupHeapStackSize();
1370 # These two variables need to be set after the
1371 # command-line has been processed and the build options
1372 # have be seen set up. This is because command-line options
1373 # can control whether to compile vias C or not.
1375 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1377 : ( ($HscOut eq '-C=') ? 1 : 0 );
1378 local($do_as) = $Do_as;
1379 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1380 local($hsc_out_c_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.c" : "";
1381 local($hsc_out_h_stub) = ( $HscOut eq '-C=' ) ? "${Tmp_prefix}_stb.h" : "";
1383 if ($Only_preprocess_hc) { # stop after having run $Cc -E
1386 if ($Only_preprocess_C) { # stop after having run $hscpp
1387 $do_hsc=0; $do_cc = 0; $do_as=0;
1388 } elsif ($ifile =~ /.lhs$/ || $ifile =~ /.hs$/ ) {
1390 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
1391 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1393 $hsc_out_c_stub = '';
1394 $hsc_out_h_stub = '';
1395 } elsif ($ifile =~ /\.c$/) {
1396 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1397 $hsc_out = $ifile; $is_hc_file = 0;
1398 $hsc_out_c_stub = '';
1399 $hsc_out_h_stub = '';
1400 } elsif ($ifile =~ /\.[sS]$/) {
1401 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
1403 } else { # don't know what it is, but nothing to do herein...
1404 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
1407 # hack to avoid running hscpp
1408 $HsCpp = $Cat if ! $Cpp_flag_set;
1410 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) if $do_hscpp;
1414 We now think about whether to run hsc/cc or not (when hsc produces .s
1415 stuff, it effectively takes the place of both phases).
1416 To get the output file name right: for each phase that we are {\em
1417 not} going to run, set its input (i.e., the output of its preceding
1418 phase) to @"$ifile_root.<suffix>"@.
1421 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
1424 # Warning issued if -keep-hc-file-too is used without
1425 # -fvia-C (or the equivalent)
1427 if ( $HscOut ne '-C=' && $Keep_hc_file_too ) {
1428 print STDERR "$Pgm: warning: Native code generator to be used, -keep-hc-file-too will be ignored\n";
1431 if (! $do_cc && ! $do_as) { # stopping after hsc
1432 $hsc_out = ($Specific_output_file ne '')
1433 ? $Specific_output_file
1434 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
1436 $ofile_target = $hsc_out; # reset
1439 if (! $do_as) { # stopping after gcc (or hsc)
1440 $cc_as = ($Specific_output_file ne '')
1441 ? $Specific_output_file
1442 : &odir_ify($ifile_root, ( $Only_preprocess_hc ) ? 'i' : 's');
1444 $ofile_target = $cc_as; # reset
1450 Now the Haskell compiler, C compiler, and assembler
1454 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
1455 $ofile_target, $hifile_target,
1456 $going_interactive);
1459 if (-f $hsc_out_h_stub) {
1460 &run_something("cp $hsc_out_h_stub $ofile_h_stub_target", 'Copy foreign export header file');
1463 if (-f $hsc_out_c_stub) {
1464 &run_something("cp $hsc_out_c_stub $ofile_c_stub_target", 'Copy foreign export C stubs');
1465 local ($hsc_out_s_stub);
1466 local ($hsc_out_o_stub);
1467 ($ofile_s_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$/\.s/;
1468 ($ofile_o_stub_target = $ofile_c_stub_target) =~ s/\.(.*)$/\.o/;
1469 &runGcc (0, $ofile_c_stub_target, $ofile_s_stub_target);
1470 &runAs ($ofile_o_stub_target, $ofile_s_stub_target);
1472 # Bring the C stub protos into scope when compiling the .hc file.
1474 push (@CcInjects, "#include \"${hsc_out_h_stub}\"\n");
1475 # Hack - ensure that the stub .h file is included in the OPTIONS section
1476 # if the .hc file is saved.
1477 push (@File_options, "-#include \"${ofile_h_stub_target}\"\n");
1482 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
1483 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root) if ! $Only_preprocess_hc;
1486 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
1488 # save a copy of the .s file..
1489 &saveIntermediate($ifile_root , "s" , $cc_as) if ($do_as && $Keep_s_file_too);
1490 &runAs($as_out, $ifile_root) if $do_as;
1493 Finally, decide what to queue up for linker input.
1495 # tentatively assume we will eventually produce linker input:
1496 push(@Link_file, &odir_ify($ifile_root, 'o'));
1498 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
1500 if ( $ifile !~ /\.(lhs|hs|hc|c|s|a|S)$/ && $ifile !~ /_hc$/ ) {
1501 # There's sometimes confusion regarding .hi files; users
1502 # supplying them on the command line.
1503 if ( $ifile =~ /\.hi$/ ) {
1504 print STDERR "$Pgm: warning: found `$ifile' on command line; interface files should not be supplied here - ignoring it.\n";
1506 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n";
1508 # oops; we tentatively pushed the wrong thing; fix & do the right thing
1509 pop(@Link_file); push(@Link_file, $ifile);
1513 } # end of ProcessInputFile
1516 %************************************************************************
1518 \section[Driver-run-phases]{Routines to run the various phases}
1520 %************************************************************************
1524 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
1528 # Only add #line pragma if we're going to need it.
1529 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && " if ($Cpp_flag_set);
1530 $to_do .= "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
1532 push(@Files_to_tidy, $lit2pgm_hscpp );
1534 &run_something($to_do, 'literate pre-processor');
1540 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
1544 # Strictly speaking, echoing of the following line pragma is only required
1545 # on non-delit'ed input, as we've already added it during de-lit. However,
1546 # hscpp will then add a {-# LINE 1 "$lit2pgm_hsc" -} to the top of the file,
1547 # which is not very informative (but harmless). Hence, we uniformly have
1548 # {-# LINE 1 "$in_lit2pgm" #-} as the first line to all cpp'ed hsc input.
1550 $to_do = "echo '{-# LINE 1 \"$in_lit2pgm\" -}' > $hscpp_hsc && ";
1552 if ($HsCpp eq $Cat) {
1553 $to_do .= "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
1554 push(@Files_to_tidy, $hscpp_hsc );
1555 &run_something($to_do, 'Ineffective C pre-processor');
1557 local($includes) = '-I' . join(' -I',@Include_dir);
1558 $to_do .= "$HsCpp $Verbose @HsCpp_flags @HsSourceCppOpts $includes $lit2pgm_hscpp >> $hscpp_hsc";
1559 push(@Files_to_tidy, $hscpp_hsc );
1560 &run_something($to_do, 'Haskellised C pre-processor');
1563 if ( $Only_preprocess_C ) {
1564 $to_do = "$Cat $hscpp_hsc";
1565 &run_something($to_do, '');
1573 sub runHscAndProcessInterfaces {
1574 local($ifile, $hscpp_hsc, $ifile_root,
1575 $ofile_target, $hifile_target,
1576 $going_interactive) = @_;
1578 # $ifile is the original input file
1579 # $hscpp_hsc post-unlit, post-cpp, etc., input file
1580 # $ifile_root input filename minus suffix
1581 # $ofile_target the output file that we ultimately hope to produce
1582 # $hifile_target the .hi file ... (ditto)
1584 local($source_unchanged) = 1;
1586 # Check if the source file is up to date relative to the target; in
1587 # that case we say "source is unchanged" and let the compiler bail out
1588 # early if the import usage information allows it.
1590 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
1591 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
1593 # The informational messages below are now conditional on -v being set -- SOF
1594 if ( $ofile_target ne "_stdin.s" && ! -f $ofile_target ) {
1595 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n" if $Verbose;
1596 $source_unchanged = 0;
1599 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
1600 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
1602 if ( $hifile_target ne "_stdout" && ! -f $hifile_target ) {
1603 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n" if $Verbose;
1604 $source_unchanged = 0;
1607 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
1608 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
1610 if ( $ofile_target ne "_stdin.s" && $i_mtime > $o_mtime) {
1611 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n" if $Verbose;
1612 $source_unchanged = 0;
1615 # Tell the compiler which version we're using
1616 push(@HsC_flags, "-fhi-version=${ProjectVersionInt}");
1618 # So if source_unchanged is still "1", we pass on the good news to the compiler
1619 # The -recomp flag can disable this, forcing recompilation
1620 if ($Do_recomp_chkr && $source_unchanged) {
1621 push(@HsC_flags, '-fsource-unchanged');
1624 # Indicate whether we're static or not.
1625 # This will only ever
1626 push(@HsC_flags, '-static') if $Static;
1630 &runHsc($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive);
1632 # See if it bailed out early, saying nothing needed doing.
1633 # We work this out by seeing if it created an output .hi file
1635 if ( ! -f $hsc_hi && $ProduceHi !~ /-nohifile=/ ) {
1636 # Doesn't exist, so we bailed out early.
1637 # Tell the C compiler and assembler not to run
1638 $do_cc = 0; $do_as = 0;
1640 # Update dependency info, touch both object file and
1641 # interface file, so that the following invariant is
1644 # a dependent module's interface file should after recompilation
1645 # checking be newer than the interface files of its imports.
1647 # That is, if module A's interface file changes, then module B
1648 # (which import from A) needs to be checked.
1649 # If A's change does not affect B, which causes the compiler to bail
1650 # out early, we still need to touch the interface file of B. The reason
1651 # for this is that B may export A's interface.
1653 &run_something("touch $ofile_target",
1654 "Touch $ofile_target, to propagate dependencies") if $HscOut ne '-N=';
1655 &run_something("touch $hifile_target",
1656 "Touch $hifile_target, to propagate dependencies") if $ProduceHi =~ /-nohifile=/ ;
1660 # Didn't bail out early (new .hi file) so we thunder on
1662 # If non-interactive, heave in the consistency info at the end
1663 # NB: pretty hackish (depends on how $output is set)
1664 if ( ! $going_interactive ) {
1665 if ( $HscOut eq '-C=' ) {
1666 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
1668 } elsif ( $HscOut eq '-S=' ) {
1669 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
1670 $consist =~ s/,/./g;
1671 $consist =~ s/\//./g;
1672 $consist =~ s/-/_/g;
1673 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
1674 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
1676 &run_something($to_do, 'Pin on Haskell consistency info');
1680 # Interface-handling is important enough to live off by itself
1681 if ( $ProduceHi !~ /-nohifile=/ ) { # If we've produced one, process it.
1682 require('ghc-iface.prl') || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
1683 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
1685 # if we're going to split up object files,
1686 # we inject split markers into the .hc file now
1687 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
1688 &inject_split_markers ( $hsc_out );
1691 # save a copy of the .hc file, even if we are carrying on...
1692 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
1693 &saveIntermediate($ifile_root , "hc" , $hsc_out);
1703 local($ifile_root, $hsc_out, $hsc_hi, $hsc_out_c_stub, $hsc_out_h_stub, $going_interactive) = @_;
1705 &makeHiMap() unless $HiMapDone;
1706 push(@HsC_flags, "-himap=$HiIncludeString");
1708 # here, we may produce .hc/.s and/or .hi files
1709 local($output) = '';
1710 #@Files_to_tidy = ();
1712 if ( $going_interactive ) {
1713 # don't need .hi unless we're going to show it on stdout:
1714 $ProduceHi = '-nohifile=' if ! ($HiOnStdout || $Specific_hi_file ne '' );
1715 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
1718 # set up for producing output/.hi; note that flag twiddling
1719 # may mean that nothing will actually be produced:
1720 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out -F=$hsc_out_c_stub -FH=$hsc_out_h_stub";
1721 push(@Files_to_tidy, $hsc_hi, $hsc_out, $hsc_out_c_stub, $hsc_out_h_stub );
1723 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
1724 if ( $CollectingGCstats ) {
1725 push(@HsC_rts_flags, "-S$ifile_root.stat");
1726 push(@Files_to_tidy, "$ifile_root.stat");
1729 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
1730 # emit nofibbish time/bytes-alloc stats to stderr;
1731 # see later .stat file post-processing
1732 print STDERR "warning: both -Rgc-stats and -Rghc-timing used, -Rghc-timing wins." if $CollectingGCstats;
1733 push(@HsC_rts_flags, "-s$Tmp_prefix.stat");
1734 push(@Files_to_tidy, "$Tmp_prefix.stat");
1738 if ($Specific_dump_file ne '') {
1739 $dump = "2>> $Specific_dump_file";
1740 $Using_dump_file = 1;
1744 # Win32 only: If the command processor used by system()
1745 # exec()s the application as an ordinary Win32 executable,
1746 # we're in trouble here, since the command line is likely
1747 # to be > 255 chars long. To work around this situation,
1748 # $HsC also understands `at-files', i.e., `@file' on the
1749 # command line will cause $HsC to add the contents of `file'
1750 # to the command line.
1752 # [ Note: support for `at-files' is not compiled in by default ]
1753 $cmd_line_opts_via_at_file=0;
1754 if ($cmd_line_opts_via_at_file) {
1756 local($to_do_opts) = "$Tmp_prefix.opts";
1757 open(OPTS, "> $Tmp_prefix.opts") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.opts\n");
1758 print OPTS "$dump @HsC_flags $CoreLint $USPLint $StgLint $Verbose";
1760 $to_do = "$HsC $hscpp_hsc \@$Tmp_prefix.opts $output +RTS @HsC_rts_flags";
1764 $to_do = "$HsC $hscpp_hsc $dump @HsC_flags $CoreLint $USPLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
1766 &run_something($to_do, 'Haskell compiler');
1768 # finish business w/ nofibbish time/bytes-alloc stats
1769 &process_ghc_timings() if $CollectGhcTimings;
1773 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
1774 of (module-name, pathname) pairs, one per line, separated by a space.
1777 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1781 # collect in %HiMap; write later; also used elsewhere in driver
1783 local($mod, $path, $d, $e);
1785 # reset the global variables:
1787 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1789 foreach $d ( @Import_dir ) {
1790 if ($HiIncludeString) {
1791 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix}";
1793 $HiIncludeString = "$d%.${HiSuffix}";
1798 foreach $d ( @SysImport_dir ) {
1799 if ($HiIncludeString) {
1800 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix_prelude}";
1802 $HiIncludeString = "${d}%.${HiSuffix_prelude}";
1811 Invoke the 'linker' - either the standard linker or the one used to build
1817 local($libdirs) = '';
1819 # append last minute flags linker and consistency flags
1824 # glue them together:
1825 push(@UserLibrary_dir, @SysLibrary_dir);
1827 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1829 # for a linker, use an explicitly given one, or the going C compiler ...
1830 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1832 if ( ($Specific_output_file eq '') &&
1833 ($TargetPlatform eq 'i386-unknown-cygwin32') ) {
1834 $Specific_output_file = 'main.exe';
1835 print STDERR "Output file not specified, defaulting to \"main.exe\"\n";
1838 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1839 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1841 &prepareWin32DllLink(1);
1843 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $TopClosureFile $libdirs @UserLibrary @SysLibrary";
1844 &run_something($to_do, 'Linker');
1846 # finally, check the consistency info in the binary
1847 local($executable) = $Files_to_tidy[0];
1848 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1851 # dynamically load consistency-chking code; then do it.
1852 require('ghc-consist.prl')
1853 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1855 &chk_consistency_info ( $executable );
1858 # if PVM parallel stuff, we do truly weird things.
1859 # Essentially: (1) move the executable over to where PVM expects
1860 # to find it. (2) create a script in place of the executable
1861 # which will cause the program to be run, via SysMan.
1862 if ( $PARing eq 'p' ) {
1863 local($pvm_executable) = $executable;
1864 local($pvm_executable_base);
1866 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1867 local($pwd) = `pwd`;
1869 $pwd =~ s/^\/tmp_mnt//;
1870 $pvm_executable = "$pwd/$pvm_executable";
1873 $pvm_executable =~ s|/|=|g; # make /s into =s
1874 $pvm_executable_base = $pvm_executable;
1876 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1877 . "/$pvm_executable";
1879 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1881 # OK, now create the magic script for "$executable"
1882 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1883 print EXEC <<EOSCRIPT1;
1884 eval 'exec perl -S \$0 \${1+"\$@"}'
1885 if \$running_under_some_shell;
1886 # =!=!=!=!=!=!=!=!=!=!=!
1887 # This script is automatically generated: DO NOT EDIT!!!
1888 # Generated by Glasgow Haskell, version ${ProjectVersion} ${ProjectPatchLevel}
1890 \$pvm_executable = '$pvm_executable';
1891 \$pvm_executable_base = '$pvm_executable_base';
1892 \$SysMan = '$SysMan';
1895 print EXEC <<\EOSCRIPT2;
1896 # first, some magical shortcuts to run "commands" on the binary
1898 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1900 system("$cmd $pvm_executable");
1904 # OK, really run it; process the args first
1905 $ENV{'PE'} = $pvm_executable_base;
1907 $nprocessors = 2; # the default
1911 # ToDo: handle --RTS
1912 args: while ($a = shift(@ARGV)) {
1913 if ( $a eq '+RTS' ) {
1915 } elsif ( $a eq '-RTS' ) {
1918 if ( $a eq '-d' && $in_RTS_args ) {
1920 } elsif ( $a =~ /^-N(\d+)/ && $in_RTS_args ) {
1923 push(@nonPVM_args, $a);
1927 local($return_val) = 0;
1928 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
1930 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
1933 close(EXEC) || die "Failed closing $executable\n";
1934 chmod 0755, $executable;
1938 sub createWin32DLL()
1942 # append last minute flags linker and consistency flags
1947 # glue them together:
1948 push(@UserLibrary_dir, @SysLibrary_dir);
1950 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1952 &prepareWin32DllLink(0);
1954 local ($bld_dll) = "dllwrap";
1956 local ($output) = ($Specific_output_file ne '') ? "$Specific_output_file" : 'HSdll.dll';
1957 local ($output_dir);
1958 local ($output_file);
1959 local ($output_lib, $output_def);
1961 ($output_dir = $output) =~ s|(.*/)[^/]+$|$1|;
1962 $output_dir = "" if ($output_dir eq $output);
1963 ($output_file = $output) =~ s|.*/([^/]+)$|$1|;
1965 ($output_lib = $output_file) =~ s|(.+)\.[^\.]*$|${output_dir}lib$1_imp.a|;
1966 ($output_def = $output_file) =~ s|(.+)\.[^\.]*$|${output_dir}$1.def|;
1968 push (@Dll_flags, "-mno-cygwin --target=i386-mingw32") if ($TargetPlatform =~ /^.*mingw32$/);
1969 push (@Dll_flags, "--output-lib $output_lib");
1970 # If the "--def " option hasn't been supplied, assume everything
1971 # is going to be exported via the DLL.."
1972 if (!grep(/--def/, @Dll_flags)) {
1973 push (@Dll_flags, "--export-all --output-def $output_def");
1976 local($to_do) = "$bld_dll @Dll_flags -o $output @Link_file $libdirs @UserLibrary @SysLibrary";
1977 # Make sure the user sees this piece of magic.
1978 print STDERR "$to_do\n" if (!$Verbose);
1979 &run_something($to_do, 'DLL creator');
1982 sub prepareWin32DllLink ()
1984 local($linking_main) = @_;
1987 # Win32 DLLs - link with import libraries, not the real archives.
1989 if ( $TargetPlatform =~ /-mingw32$/ ) {
1992 # If the libraries have the form libHSfoo.a, we
1993 # transform that into libHSfoo_imp.a - the import
1994 # library of the DLL.
1996 foreach $a ( @SysLibrary ) {
1997 $a = "${a}_imp" if ($a =~ /^-lHS/);
1999 foreach $a ( @UserLibrary ) {
2000 $a = "${a}_imp" if ($a =~ /^-lHS/);
2002 push(@Link_file, ( $INSTALLING ) ? "$InstLibDirGhc/Main.o"
2003 : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/Main.o") if $linking_main;
2004 push(@Link_file, ( $INSTALLING ) ? "$InstLibDirGhc/PrelMain.o"
2005 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/PrelMain.o") if $linking_main;
2007 push(@Ld_flags, "-mno-cygwin");
2013 %************************************************************************
2015 \section[Driver-misc-utils]{Miscellaneous utilities}
2017 %************************************************************************
2019 %************************************************************************
2021 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
2023 %************************************************************************
2027 local($ofile,$def_suffix) = @_;
2029 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
2033 local($orig_file, $def_suffix) = @_;
2034 if ($Specific_output_dir eq '') { # do nothing
2035 &osuf_ify($orig_file, $def_suffix);
2037 local ($orig_file_only);
2038 ($orig_file_only = $orig_file) =~ s|.*/||;
2039 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
2046 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
2048 local($includes) = '-I' . join(' -I', @Include_dir);
2051 local($c_flags) = "@CcBoth_flags";
2052 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2054 $c_flags .= " -mno-cygwin" if ( $TargetPlatform =~ /-mingw32$/ );
2056 # "input" files to use that are not in some weird directory;
2057 # to help C compilers grok .hc files [ToDo: de-hackify]
2058 local($cc_help) = "ghc$$.c";
2059 local($cc_help_s) = "ghc$$.s";
2062 $s_output = (($is_hc_file && $DoAsmMangling) || $TargetPlatform =~ /^(powerpc|rs6000|hppa)/) ? $cc_as_o : $cc_as;
2063 $c_flags .= " @CcRegd_flags";
2064 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2066 # C compiler won't like the .hc extension. So we create
2067 # a tmp .c file which #include's the needful.
2068 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2069 if ( $is_hc_file ) {
2073 # user may have asked for #includes to be injected...
2074 print TMP @CcInjects if $#CcInjects >= 0;
2076 # Straight .c files may want to know that they're being used
2077 # with a particular version of GHC, so we define __GLASGOW_HASKELL__ for their benefit.
2078 print TMP "#define __GLASGOW_HASKELL__ ${ProjectVersionInt}\n";
2080 # heave in the consistency info
2081 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2083 print TMP "#include \"$hsc_out\"\n";
2084 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2086 # Don't redirect stderr into intermediate file if slamming output onto stdout (e.g., with -E)
2087 local($fuse_stderr) = "2>&1" if ! $Only_preprocess_hc;
2088 local($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 )";
2090 if ( $Only_preprocess_hc ) { # HACK ALERT!
2091 $to_do =~ s/ -S\b//g;
2093 push(@Files_to_tidy, $cc_help, $cc_help_s, $s_output );
2094 $PostprocessCcOutput = 1 if ! $Only_preprocess_hc; # hack, dear hack...
2095 &run_something($to_do, 'C compiler');
2096 $PostprocessCcOutput = 0;
2097 if ( $Only_preprocess_hc ) {
2098 system("$Cat $Tmp_prefix.ccout");
2100 unlink($cc_help, $cc_help_s);
2106 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2108 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2110 if ($is_hc_file && $DoAsmMangling) {
2111 # dynamically load assembler-fiddling code, which we are about to use:
2112 require('ghc-asm.prl')
2113 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2114 # post-process the assembler [.hc files only]
2115 &mangle_asm($cc_as_o, $cc_as);
2117 } elsif ($TargetPlatform =~ /^hppa/) {
2118 # minor mangling of non-threaded files for hp-pa only
2119 require('ghc-asm.prl')
2120 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2121 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2123 } elsif ($TargetPlatform =~ /^powerpc|^rs6000/) {
2124 # minor mangling of non-threaded files for powerpcs and rs6000s
2125 require('ghc-asm.prl')
2126 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-powerpc.prl!\n");
2127 &mini_mangle_asm_powerpc($cc_as_o, $cc_as);
2130 # save a copy of the .s file, even if we are carrying on...
2131 #if ($do_as && $Keep_s_file_too) {
2132 # &saveIntermediate($ifile_root , "s" , $cc_as);
2139 local($as_out, $ifile_root) = @_;
2141 local($asmblr) = ( $As ) ? $As : $CcRegd;
2143 # need to add the -I flags in case the file is going through cpp (.S files)
2144 local($includes) = '-I' . join(' -I', @Include_dir);
2146 if ( ! $SplitObjFiles ) {
2147 local($to_do) = "$asmblr -o $as_out -c @As_flags $includes $cc_as";
2148 push(@Files_to_tidy, $as_out );
2149 &run_something($to_do, 'Unix assembler');
2151 } else { # more complicated split-ification...
2153 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2155 # If -odir is used, great, just pin it in front of the
2156 # generated split file names. If it hasn't been set, we
2157 # snatch it from the ifile_root.
2161 if ( $Specific_output_dir eq '' ) {
2162 $Specific_output_dir = ${ifile_root};
2165 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2166 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2167 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2168 push(@Files_to_tidy, $split_out );
2170 &run_something($to_do, 'Unix assembler');
2176 %************************************************************************
2178 \subsection[Driver-run-something]{@run_something@: Run a phase}
2180 %************************************************************************
2184 local($str_to_do, $tidy_name) = @_;
2186 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2187 print STDERR "$str_to_do\n" if $Verbose;
2189 if ($Using_dump_file) {
2190 open(DUMP, ">> $Specific_dump_file")
2191 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2192 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2194 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2197 local($return_val) = 0;
2199 if ( length($str_to_do) > 4000) {
2200 # 4000 - on the random side, just like the *real* ARG_MAX
2203 # With some shells, command lines of this length may
2204 # very well cause trouble. To safeguard against this, we squirrel the
2205 # command into a file and exec that.
2206 local ($sh) = $ENV{'REAL_SHELL'};
2207 print STDERR "Backup plan A: saving cmd line in ${Tmp_prefix}.sh and executing that with $sh\n" if $Verbose;
2208 open (TEMP, "> ${Tmp_prefix}.sh") ||
2209 &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.sh'\n");
2210 print TEMP "$Time $str_to_do\n";
2212 &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.sh'\n");
2213 system("$sh $Tmp_prefix.sh");
2216 unlink "${Tmp_prefix}.sh";
2218 system("$Time $str_to_do");
2222 if ( $PostprocessCcOutput ) { # hack, continued
2223 open(CCOUT, "< $Tmp_prefix.ccout")
2224 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2226 next if /call-clobbered/;
2227 next if /control reaches end/;
2228 next if /from .*Stg\.h:/;
2229 next if /from ghc\d+.c:\d+:/;
2230 next if /: At top level:$/;
2231 next if /: In function \`.*\':$/;
2232 next if /\`ghc_cc_ID\' defined but not used/;
2235 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2238 if ($return_val != 0) {
2239 if ($Using_dump_file) {
2240 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2242 &tidy_up_and_die($return_val, '');
2244 $Using_dump_file = 0;
2248 %************************************************************************
2250 \subsection[Driver-ghc-timing]{Emit nofibbish GHC timings}
2252 %************************************************************************
2254 NB: nearly the same as in @runstdtest@ script.
2257 sub process_ghc_timings {
2258 local($StatsFile) = "$Tmp_prefix.stat";
2259 local($SysSpecificTiming) = 'ghc';
2261 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2262 local($max_live) = 0;
2263 local($tot_live) = 0; # for calculating residency stuff
2264 local($tot_samples) = 0;
2267 if (! /Gen:\s+0/ && ! /Minor/ && /^\s*\d+\s+\d+\s+(\d+)\s+\d+\.\d+/ ) {
2268 $max_live = $1 if $max_live < $1;
2272 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2274 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2275 $MaxResidency = $1; $ResidencySamples = $2;
2278 $GCs = $1 if /^\s*([0-9,]+) (collections? in generation 0|garbage collections? performed)/;
2280 if ( /^\s+([0-9]+)\s+Mb total memory/ ) {
2284 # The presence of -? in the following pattern is only there to
2285 # accommodate 0.29 && <= 2.05 RTS'
2286 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*-?(\d+\.\d\d)s elapsed\)/ ) {
2287 $InitTime = $1; $InitElapsed = $2;
2288 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2289 $MutTime = $1; $MutElapsed = $2;
2290 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2291 $GcTime = $1; $GcElapsed = $2;
2294 close(STATS) || die "Failed when closing $StatsFile\n";
2295 if ( $tot_samples > 0 ) {
2296 $ResidencySamples = $tot_samples;
2297 $MaxResidency = $max_live;
2298 $AvgResidency = int ($tot_live / $tot_samples) ;
2301 # warn about what we didn't find
2302 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2303 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2304 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2305 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2306 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2307 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2308 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2309 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2311 # things we didn't necessarily expect to find
2312 $MaxResidency = 0 unless defined($MaxResidency);
2313 $AvgResidency = 0 unless defined($AvgResidency);
2314 $ResidencySamples = 0 unless defined($ResidencySamples);
2317 $BytesAlloc =~ s/,//g;
2318 $MaxResidency =~ s/,//g;
2320 $InitTime =~ s/,//g;
2321 $InitElapsed =~ s/,//g;
2323 $MutElapsed =~ s/,//g;
2325 $GcElapsed =~ s/,//g;
2327 # print out what we found
2328 print STDERR "<<$SysSpecificTiming: ",
2329 "$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)",
2330 " :$SysSpecificTiming>>\n";
2337 %************************************************************************
2339 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2341 %************************************************************************
2345 local($to_do) = "\n$Rm $Tmp_prefix*";
2346 if ( $Tmp_prefix !~ /^\s*$/ ) {
2347 print STDERR "$to_do\n" if $Verbose;
2352 sub tidy_up_and_die {
2353 local($return_val, $msg) = @_;
2355 # delete any files to tidy
2356 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2357 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2361 exit (($return_val == 0) ? 0 : 1);
2365 %************************************************************************
2367 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2369 %************************************************************************
2371 Some command-line arguments take an argument, e.g.,
2372 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2373 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2374 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2376 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2377 gobble the second argument (and probably set the heapsize to something
2381 local(*Args, $option, $rest_of_arg) = @_;
2383 if ($rest_of_arg ne '') {
2384 return($rest_of_arg);
2385 } elsif ($#Args >= 0) {
2386 local($temp) = $Args[0]; shift(@Args);
2389 print STDERR "$Pgm: no argument following $option option\n";
2400 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2402 foreach $f ( @HsC_antiflags ) {
2403 return(0) if $flag eq $f;
2405 # foreach $f ( @HsC_flags ) {
2406 # return(0) if $flag eq $f;
2411 sub squashHscFlag { # pretty terrible
2415 foreach $f ( @HsC_flags ) {
2416 if ($flag eq $f) { $f = ''; }
2424 foreach $f ( @flags ) {
2425 push( @HsC_flags, $f ) if &isntAntiFlag($f);
2430 To add another system library, you'll need to augment the
2431 Supported_syslibs variable with name and info on your addition
2432 to the syslib family. The info bit consist of the following:
2434 - interface file directory
2435 see the misc or posix entry for how to distinguish
2436 between using installed and build tree directories.
2438 - directory location of archives
2440 - location of (way-independent) C support libs.
2441 not all libraries need this - if you don't, just
2442 give the empty string.
2443 - list of syslibs you depend on.
2445 - additional ghc command line flags that should be used.
2446 - additional C compiler command line flags that should be used.
2452 # Hash to keep track of
2453 %Syslibs_added = ();
2456 local($syslib) = @_;
2458 # Lifting this out of this sub brings it out of scope - why??
2459 %Supported_syslibs =
2461 [ # where to slurp interface files from
2463 ? "$InstLibDirGhc/imports/exts"
2464 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/exts"
2466 , # where to find the archive to use when linking
2469 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/exts"
2472 , '' # Syslib dependencies
2473 , '' # extra ghc opts
2474 , '' # extra cc opts
2475 , '' # extra ld opts
2479 [ # where to slurp interface files from
2481 ? "$InstLibDirGhc/imports/misc"
2482 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc"
2484 , # where to find the archive to use when linking
2487 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc"
2489 , # where to find the cbits archive to use when linking
2492 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/misc/cbits"
2494 , 'exts' # Syslib dependencies
2495 , '' # extra ghc opts
2496 , '' # extra cc opts
2497 , ( $TargetPlatform =~ /-solaris2$/ ? '-lnsl -lsocket' : '')
2500 [ # where to slurp interface files from
2502 ? "$InstLibDirGhc/imports/hbc"
2503 : "$TopPwd/CONTRIB/libraries/hbc/src"
2505 , # where to find the archive to use when linking
2508 : "$TopPwd/CONTRIB/libraries/src/hbc"
2510 , # where to find the cbits archive to use when linking
2513 : "$TopPwd/CONTRIB/libraries/hbc/cbits"
2515 , 'exts' # Syslib dependencies
2516 , '' # extra ghc opts
2517 , '' # extra cc opts
2521 [ # where to slurp interface files from
2523 ? "$InstLibDirGhc/imports/posix"
2524 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix"
2526 , # where to find the archive to use when linking
2529 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix"
2531 , # where to find the cbits archive to use when linking
2534 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/posix/cbits"
2536 , 'misc' # Syslib dependencies
2537 , '' # extra ghc opts
2538 , '' # extra cc opts
2539 , '' # extra ld opts
2542 [ # where to slurp interface files from
2544 ? "$InstLibDirGhc/imports/concurrent"
2545 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent"
2547 , # where to find the archive to use when linking
2550 : "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent"
2552 , '' # where to find the cbits archive to use when linking
2553 , '' # Syslib dependencies
2554 , '' # extra ghc opts
2555 , '' # extra cc opts
2556 , '' # extra ld opts
2559 [ # where to slurp interface files from
2561 ? "$InstLibDirGhc/imports/win32"
2562 : "$TopPwd/hslibs/win32/src"
2564 , # where to find the archive to use when linking
2567 : "$TopPwd/hslibs/win32/src"
2570 , 'exts' # Syslib dependencies
2571 , '' # extra ghc opts
2572 , '' # extra cc opts
2573 , '-luser32 -lgdi32' # extra ld opts
2576 [ # where to slurp interface files from
2578 ? "$InstLibDirGhc/imports/com"
2579 : "$TopPwd/hdirect/lib"
2581 , # where to find the archive to use when linking
2584 : "$TopPwd/hdirect/lib"
2587 , 'exts' # Syslib dependencies
2588 , '' # extra ghc opts
2589 , '' # extra cc opts
2590 , '-luser32 -lole32 -loleaut32 -ladvapi32'
2595 # check if it's supported..
2597 if ( !exists $Supported_syslibs{$syslib} ) {
2598 print STDERR "$Pgm: no such system library (-syslib): $syslib\n";
2603 # This check is here to avoid syslib loops from
2604 # spoiling the party. A side-effect of it is that
2605 # it disallows multiple mentions of a syslib on a command-line,
2606 # explicit *and* implicit ones (i.e., "-syslib exts -syslib misc"
2607 # is not equal to "-syslib exts -syslib misc -syslib exts",
2608 # which it needs to be)
2610 # Since our current collection of syslibs don't have any
2611 # loops, this test is disabled.
2613 # ToDo: loop avoidance scheme when the need arises
2615 #return if ( exists $Syslibs_added{$syslib} );
2617 $Syslibs_added{$syslib} = 1;
2619 local ($hi_dir, $lib_dir, $lib_cbits_dir,
2620 $syslib_deps, $syslib_ghc_opts,
2621 $syslib_cc_opts, $syslib_ld_opts) = @{ $Supported_syslibs{$syslib} };
2624 unshift(@SysImport_dir, $hi_dir);
2625 push(@SysLibrary_dir, $lib_dir);
2626 push(@SysLibrary_dir, $lib_cbits_dir) if ( $lib_cbits_dir ne '');
2628 push(@SysLibrary, "-lHS$syslib");
2629 push(@SysLibrary, "-lHS${syslib}_cbits") if ( $lib_cbits_dir ne '');
2630 push(@SysLibrary, $syslib_ld_opts) if ($syslib_ld_opts ne '');
2632 # Add on any extra dependencies.
2633 foreach $lib (split(' ',$syslib_deps)) {
2639 Source files may have {-# OPTIONS ... #-} pragmas at the top, containing
2640 command line options we want to append to collection of commands specified
2641 directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell
2642 file for any such pragmas:
2645 sub check_for_source_options {
2646 local($file,$ifile) = @_;
2647 local($comment_start,$comment_end);
2649 if ($ifile =~ /\.hc$/ ||
2652 $ifile =~ /_s$/ ) { # `Real' C intermediate
2653 $comment_start = "/\\*";
2654 $comment_end = "\\*/";
2655 } else { # Assume it is a file containing Haskell source
2656 $comment_start = "{-#";
2657 $comment_end = "#-}";
2660 open(FILE,$file) || return(1); # No big loss
2663 if ( /^${comment_start} OPTIONS (.*)${comment_end}$/ ) {
2664 # add the options found at the back of the command line.
2665 local(@entries) = split(/\s+/,$1);
2666 print STDERR "Found OPTIONS " . join(' ',@entries) . " in $file\n" if $Verbose;
2667 push(@File_options, @entries);
2669 elsif ( /^$/ ) { # ignore empty lines
2672 elsif ( /^#line.+$/ ) { # ignore comment lines (unused..ToDo: rm )
2675 elsif ( /^{-# LINE.+$/ ) { # ignore line pragmas
2678 else { # stop looking, something non-empty / not
2679 # ${comment_start} OPTIONS .. ${comment_end} encountered.
2680 close(FILE);return(0);
2689 We split the initial argv up into three arrays:
2695 the reason for doing so is to be able to deal
2696 with {-# OPTIONS #-} pragma in source files properly.
2702 arg: while($_ = $args[0]) {
2704 # sigh, we have to deal with these -option arg specially here.
2705 /^-(tmpdir|odir|ohi|o|isuf|osuf|hisuf|odump|syslib)$/ &&
2706 do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; };
2707 /^--?./ && do { push(@Cmd_opts, $_); next arg; };
2709 if (/\.([^_]+_)?[oa]$/) {
2710 push(@Link_file, $_);
2712 push(@Input_file, $_);
2715 # input files must exist:
2717 print STDERR "$Pgm: input file doesn't exist: $_\n";
2725 When saving an intermediate file (.hc or .s) away, we
2726 have to prefix any OPTIONS found in the original source file.
2729 sub saveIntermediate {
2730 local ($final,$suffix,$tmp)= @_ ;
2733 # $final -- root of where to park ${final}.${suffix}
2734 # $tmp -- temporary file where hsc put the intermediate file.
2736 # Delete the old file
2737 $to_do = "$Rm ${final}.${suffix}"; &run_something($to_do, "Removing old .${suffix} file");
2739 if ( $#File_options >= 0 ) { # OPTIONS found in Haskell source unit
2740 # Add OPTION comment to the top of the generated .${suffix} file
2741 open(TEMP, "> ${final}.${suffix}") || &tidy_up_and_die(1,"Can't open ${final}.${suffix}\n");
2742 print TEMP "/* OPTIONS " . join(' ',@File_options) . " */\n";
2744 print STDERR "Prepending OPTIONS: " . join(' ',@File_options) . " to ${final}.${suffix}\n" if $Verbose;
2746 $to_do = "$Cat $tmp >> ${final}.${suffix}";
2747 &run_something($to_do, "Saving copy of .${suffix} file");
2754 Command-line processor
2760 # can't use getopt(s); what we want is too complicated
2762 arg: while($_ = $Args[0]) {
2765 #---------- help -------------------------------------------------------
2766 if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; }
2768 #-----------version ----------------------------------------------------
2769 /^--version$/ && do { print STDERR "${ProjectName}, version ${ProjectVersion}, patchlevel ${ProjectPatchLevel}\n"; exit $Status; };
2771 #---------- verbosity and such -----------------------------------------
2772 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
2774 #---------- what phases are to be run ----------------------------------
2775 /^-(no-)?recomp/ && do { $Do_recomp_chkr = ($1 eq '') ? 1 : 0; next arg; };
2777 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
2778 # change the global default:
2779 # we won't run cat; we'll run the real thing
2781 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
2783 # stop after generating C
2785 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
2786 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
2788 # leave out actual C generation (debugging) [also turns off interface gen]
2791 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
2792 # _do_ generate an interface; usually used as: -noC -hi
2793 /^-hi-with-(.*)$/ && do { $HiOnStdout = 1; $HiWith .= " $1" ; $ProduceHi = '-hifile='; next arg; };
2794 # limit ourselves to outputting a particular section.
2796 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
2797 # don't generate an interface (even if generating C)
2799 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
2800 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
2801 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
2802 /^-keep-hi-diffs$/ && do { $Keep_HiDiffs = 1; next arg; };
2804 # show/disable diffs if the interface file changes
2806 /^-E$/ && do { push(@CcBoth_flags, '-E');
2807 $Only_preprocess_C = 1;
2808 $Do_as = 0; $Do_lnkr = 0; next arg; };
2809 # stop after preprocessing C
2810 /^-M$/ && do { $Only_generate_deps = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2811 # only generate dependency information.
2812 /^--mk-dll$/ && do { $Only_generate_dll = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2813 # Build a Win32 DLL (where supported).
2814 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
2815 # stop after generating assembler
2817 /^-c$/ && do { $Do_lnkr = 0; next arg; };
2818 # stop after generating .o files
2820 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
2821 # don't do consistency-checking after a link
2822 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
2824 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', '');
2825 $Tmp_prefix = "$Tmp_prefix/ghc$$";
2826 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
2828 # use an alternate directory for temp files
2830 #---------- redirect output --------------------------------------------
2832 # -o <file>; applies to the last phase, whatever it is
2833 # "-o -" sends it to stdout
2834 # if <file> has a directory component, that dir must already exist
2836 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', '');
2838 # Hack, of the worst sort: don't do validation of
2839 # odir argument if you're using -M (dependency generation).
2841 if ( ! $Only_generate_deps && ! -d $Specific_output_dir) {
2842 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
2847 /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', '');
2848 if ($Specific_output_file ne '-'
2849 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
2850 local($dir_part) = $1;
2851 if (! -d $dir_part) {
2852 print STDERR "$Pgm: no such directory: $dir_part\n";
2858 # NB: -isuf not documented yet (because it doesn't work yet)
2859 /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', '');
2860 if ($Isuffix =~ /\./ ) {
2861 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
2866 /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', '');
2867 if ($Osuffix =~ /\./ ) {
2868 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
2873 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
2874 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', '');
2875 if ($Specific_hi_file ne '-'
2876 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
2877 local($dir_part) = $1;
2878 if (! -d $dir_part) {
2879 print STDERR "$Pgm: no such directory: $dir_part\n";
2883 $ProduceHi='-hifile=';
2886 # The suffix to use when looking for interface files
2887 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', '');
2888 if ($HiSuffix =~ /\./ ) {
2889 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
2893 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', '');
2894 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
2895 local($dir_part) = $1;
2896 if (! -d $dir_part) {
2897 print STDERR "$Pgm: no such directory: $dir_part\n";
2903 #-------------- scc & Profiling Stuff ----------------------------------
2905 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
2907 /^-auto-dicts$/ && do {
2908 $PROFdicts = '-fauto-sccs-on-dicts';
2910 /^-auto-all$/ && do {
2911 $PROFauto = '-fauto-sccs-on-all-toplevs';
2914 $PROFauto = '-fauto-sccs-on-exported-toplevs';
2917 /^-caf-all/ && do { # generate individual CAF SCC annotations
2918 $PROFcaf = '-fauto-sccs-on-individual-cafs';
2921 /^-ignore-scc$/ && do {
2922 # forces ignore of scc annotations even if profiling
2923 $PROFignore_scc = '-W';
2926 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
2929 /^-unprof-scc-auto/ && do {
2930 # generate auto SCCs on top level bindings when not profiling.
2931 # Used to measure optimisation effects of presence of sccs.
2932 $UNPROFscc_auto = ( /-all/ )
2933 ? '-fauto-sccs-on-all-toplevs'
2934 : '-fauto-sccs-on-exported-toplevs';
2937 #--------- ticky/parallel ----------------------------------------------
2938 # we sort out the details a bit later on
2940 /^-gransim$/ && do { $GRANing = 'g'; &add_syslib('concurrent'); next arg; }; # GranSim
2941 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
2942 /^-parallel$/ && do { $PARing = 'p'; &add_syslib('concurrent'); next arg; }; # parallel Haskell
2944 #-------------- "user ways" --------------------------------------------
2946 (/^-user-setup-([a-oA-Z])$/ ) &&
2948 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
2950 local($stuff) = $UserSetupOpts{$BuildTag};
2951 local(@opts) = split(/\s+/, $stuff);
2953 # feed relevant ops into the arg-processing loop (if any)
2954 unshift(@Args, @opts) if $#opts >= 0;
2958 #---------- set search paths for libraries and things ------------------
2960 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
2961 # prepends the items to the list); -I is for including C .h files.
2963 /^-i$/ && do { @Import_dir = (); # import path cleared!
2964 @SysImport_dir = ();
2965 print STDERR "WARNING: import paths cleared by `-i'\n";
2968 /^-i(.*)/ && do { local(@new_items)
2969 = split( /:/, &grab_arg_arg(*Args,'-i', $1));
2970 unshift(@Import_dir, @new_items);
2973 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; };
2974 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; };
2975 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; };
2977 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1);
2978 &add_syslib($syslib);
2981 #=======================================================================
2982 # various flags that we can harmlessly send to one program or another
2983 # (we will later "reclaim" some of the compiler ones now sent to gcc)
2984 #=======================================================================
2986 #---------- this driver itself (ghc) -----------------------------------
2987 # these change what executable is run for each phase:
2988 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
2989 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
2990 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
2991 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
2992 /^-pgma(.*)$/ && do { $As = $1; next arg; };
2993 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
2994 /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; };
2996 #---------- the get-anything-through opts (all pgms) -------------------
2997 # these allow arbitrary option-strings to go to any phase:
2998 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
2999 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
3000 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
3001 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
3002 /^-optcpp(.*)$/ && do { push(@Cpp_define, $1); $Only_preprocess_hc = ($1 eq "-E"); next arg; };
3003 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
3004 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
3005 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
3006 /^-optdll(.*)$/ && do { push(@Dll_flags, $1); next arg; };
3007 /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; };
3009 #---------- Haskell C pre-processor (hscpp) ----------------------------
3010 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; };
3011 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; };
3013 #---------- post-Haskell "assembler"------------------------------------
3014 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
3015 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
3017 #---------- Haskell compiler (hsc) -------------------------------------
3019 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
3020 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
3022 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
3023 /^-fignore-asserts$/ && do { push(@HsC_flags, $_); next arg; };
3025 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
3028 # have the compiler proper generate concurrent code,
3029 # really only used when you want to configure your own
3030 # special user compilation way.
3032 # (ditto for -fgransim, fscc-profiling, -fparallel and -fticky-ticky)
3034 /^-fscc-profiling$/ && do { push(@HsC_flags,$_); next arg; };
3035 /^-fticky-ticky$/ && do { push(@HsC_flags,$_); next arg; };
3036 /^-fgransim$/ && do { push(@HsC_flags,$_); next arg; };
3037 /^-fparallel$/ && do { push(@HsC_flags,$_); next arg; };
3039 /^-split-objs$/ && do {
3040 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|rs6000|sparc)-/ ) {
3042 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
3047 push(@HsC_flags, "-fglobalise-toplev-names");
3048 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
3050 require('ghc-split.prl')
3051 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
3055 /^-unreg$/ && do { $UNREGing = 'u'; next arg; };
3056 /^-funregisterised$/ && do { push(@HsC_flags, $_); next arg; };
3057 /^-fno-asm-mangling$/ && do { $DoAsmMangling = 0; next arg; };
3059 /^-fallow-overlapping-instances$/ && do { push(@HsC_flags, $_); next arg; };
3060 /^-fallow-undecidable-instances$/ && do { push(@HsC_flags, $_); next arg; };
3061 /^-fhistory-size.*$/ && do { push(@HsC_flags, $_); next arg; };
3062 /^-fdicts-strict$/ && do { push(@HsC_flags, $_); next arg; };
3064 && do { push(@HsC_flags, $_);
3066 # -fglasgow-exts implies -syslib exts
3067 &add_syslib('exts');
3072 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
3073 /^-fno-speciali[sz]e$/
3074 && do { $Oopt_DoSpecialise = ''; next arg; };
3077 && do { $Oopt_UsageSPInf = '-fusagesp';
3078 push (@HsC_flags, '-fusagesp-on'); next arg; };
3080 /^-fcompiling-prelude$/ && do { $CompilingPrelude=1; push(@HsC_flags, $_); next arg; };
3082 # Now the foldr/build options, which are *on* by default (for -O).
3085 && do { $Oopt_FoldrBuild = 1;
3089 /^-fno-foldr-build$/
3090 && do { $Oopt_FoldrBuild = 0;
3093 # --------------- Renamer -------------
3096 /^-fno-prune-tydecls$/ && do { push(@HsC_flags, $_); next arg; };
3097 /^-fno-prune-instdecls$/ && do { push(@HsC_flags, $_); next arg; };
3101 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
3102 /^-fvia-[cC]$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
3107 && do { push(@HsC_flags, $_); next arg };
3109 /^-funfold-casms-in-hi-file$/
3110 && do { push(@HsC_flags, $_); next arg };
3112 /^(-fmax-simplifier-iterations)(.*)$/
3113 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2);
3116 /^-fno-pedantic-bottoms$/
3117 && do { $Oopt_PedanticBottoms = ''; next arg; };
3119 /^-fno-pre-inlining$/
3120 && do { push(@HsC_flags, $_); next arg };
3122 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
3123 && do { push(@HsC_flags, $_); next arg; };
3125 /^-funbox-strict-fields$/
3126 && do { push(@HsC_flags, $_); next arg; };
3128 # --------------- Warnings etc. ------
3130 /^-fwarn-(.*)$/ && do { push(@HsC_flags, $_); next arg; };
3132 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
3133 &squashHscFlag("-f$1");
3136 /^-W$/ && do { push(@HsC_flags, @MinusWOpts); next arg; };
3137 /^-Wall$/ && do { push(@HsC_flags, @MinusWallOpts); next arg; };
3138 /^(-Wnot|w)$/ && do { foreach (@Hsc_flags) {
3139 /^-fwarn-(.*)$/ && do { $_=''; };
3141 push(@HsC_antiflags, @StandardWarnings);
3144 # --------------- fun stuff ----------------
3146 /^-freport-compile$/ && do { push(@HsC_flags, $_); next arg; };
3148 # --------------- platform specific flags (for gcc mostly) ----------------
3150 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes,
3151 # for 2.6.x..?, does not apply for 2.7.2
3153 unshift(@CcBoth_flags, ( $_ ));
3156 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
3157 && do { # for GCC for SPARCs
3158 unshift(@CcBoth_flags, ( $_ ));
3161 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
3162 $StolenX86Regs = $1;
3165 #*************** ... and lots of debugging ones (form: -d* )
3167 # -d(no-)core-lint is done this way so it is turn-off-able.
3168 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
3169 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
3170 # Ditto for USP lint
3171 /^-dusagesp-lint/ && do { $USPLint = '-dusagesp-lint'; next arg; };
3172 /^-dno-usagesp-lint/ && do { $USPLint = ''; next arg; };
3173 # Ditto for STG lint
3174 /^-dstg-lint/ && do { $StgLint = '-dstg-lint'; next arg; };
3175 /^-dno-stg-lint/ && do { $StgLint = ''; next arg; };
3177 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
3178 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
3179 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
3180 /^-dshow-rn-stats/ && do { push(@HsC_flags, $_); next arg; };
3181 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
3182 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
3183 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
3184 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
3186 #*************** ... and now all these -R* ones for its runtime system...
3188 /^-Rscale-sizes?(.*)/ && do {
3189 $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1);
3192 /^(-H|-Rmax-heapsize)(.*)/ && do {
3193 local($heap_size) = &grab_arg_arg(*Args,$1, $2);
3194 if ($heap_size =~ /(\d+)[Kk]$/) {
3195 $heap_size = $1 * 1000;
3196 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
3197 $heap_size = $1 * 1000 * 1000;
3198 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
3199 $heap_size = $1 * 1000 * 1000 * 1000;
3201 if ($heap_size <= 0) {
3202 print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n";
3203 $Specific_heap_size = 0;
3205 # if several heap sizes given, take the largest...
3206 } elsif ($heap_size >= $Specific_heap_size) {
3207 $Specific_heap_size = $heap_size;
3209 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n";
3213 /^(-K|Rmax-(stk|stack)size)(.*)/ && do {
3215 local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3);
3216 if ($stk_size =~ /(\d+)[Kk]$/) {
3217 $stk_size = $1 * 1000;
3218 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
3219 $stk_size = $1 * 1000 * 1000;
3220 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
3221 $stk_size = $1 * 1000 * 1000 * 1000;
3223 if ($stk_size <= 0) {
3224 print STDERR "$Pgm: resetting stack-size to zero!!! $stk_size\n";
3225 $Specific_stk_size = 0;
3227 # if several stack sizes given, take the largest...
3228 } elsif ($stk_size >= $Specific_stk_size) {
3229 $Specific_stk_size = $stk_size;
3231 print STDERR "$Pgm: ignoring stack-size-setting option ($flag $stk_size)...not the largest seen\n";
3235 /^-Rgc-stats$/ && do { $CollectingGCstats++;
3236 # the two RTSs do this diff ways; we will try to compensate
3239 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
3241 #---------- C high-level assembler (gcc) -------------------------------
3242 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
3244 # -dgcc-lint is a useful way of making GCC very fussy.
3245 # From alan@spri.levels.unisa.edu.au (Alan Modra).
3246 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
3247 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
3248 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
3250 # inject "#include <wurble>" into the compiler's C output!
3252 /^-#include(.*)/ && do {
3253 local($to_include) = &grab_arg_arg(*Args,'-#include', $1);
3254 push(@CcInjects, "#include $to_include\n");
3257 #---------- Linker (gcc, really) ---------------------------------------
3259 /^-static$/ && do { $Static=1; push(@Ld_flags, $_); next arg; };
3260 /^-no-hs-main$/ && do { $NoHaskellMain=1; next arg; };
3262 #---------- mixed cc and linker magic ----------------------------------
3263 # this optimisation stuff is finally sorted out later on...
3265 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
3267 /^-O[1-2]?$/ && do {
3268 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
3269 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
3271 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
3274 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
3276 /^-Ofile(.*)/ && do {
3278 local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1);
3279 @HsC_minusO3_flags = ();
3281 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
3284 s/\#.*//; # death to comments
3285 s/[ \t]+//g; # death to whitespace
3286 next if /^$/; # ditto, blank lines
3287 s/([()*{}])/\\$1/g; # protect shell metacharacters
3289 push(@CcBoth_flags, $1);
3291 push(@HsC_minusO3_flags, $_);
3297 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
3298 # in the consistency info
3302 #---------- linking .a file --------------------------------------------
3304 /^-Main(.*)/ && do {
3305 # specifies main or mainPrimIO to be linked
3309 #---------- catch unrecognized flags -----------------------------------
3312 print STDERR "$Pgm: unrecognised option: $_\n";
3318 } # end of processArgs