2 % (c) The GRASP/AQUA Project, Glasgow University, 1992-1996
4 % *** MSUB does some substitutions here ***
8 This is the driver script for the Glasgow Haskell compilation system.
9 It is written in \tr{perl}. The first section includes a long
10 ``usage'' message that describes how the driver is supposed to work.
12 %************************************************************************
14 \section[Driver-usage]{Usage message}
16 %************************************************************************
19 ($Pgm = $0) =~ s|.*/||;
20 $ShortUsage = "\nUsage: For basic information, try the `-help' option.\n";
21 $LongUsage = "\n" . <<EOUSAGE;
22 Use of the Glorious Haskell Compilation System driver:
24 $Pgm [command-line-options-and-input-files]
26 ------------------------------------------------------------------------
27 This driver ($Pgm) guides each input file through (some of the)
28 possible phases of a compilation:
30 - unlit: extract code from a "literate program"
31 - hscpp: run code through the C pre-processor (if -cpp flag given)
32 - hsc: run the Haskell compiler proper
33 - gcc: run the C compiler (if compiling via C)
34 - as: run the assembler
37 For each input file, the phase to START with is determined by the
39 - .lhs literate Haskell: unlit
40 - .hs illiterate Haskell: hsc
41 - .hc C from the Haskell compiler: gcc
42 - .c C not from the Haskell compiler: gcc
43 - .s assembly language: as
44 - other passed directly to the linker: ld
46 If no files are given on the command line, input is taken from
47 standard input, and processing is as for an .hs file. (All output is
48 to stdout or stderr, however).
50 The phase at which to STOP processing is determined by a command-line
52 -C stop after generating C (.hc output)
53 -E stop after generating preprocessed C (.i output)
54 -S stop after generating assembler (.s output)
55 -c stop after generating object files (.o output)
57 Other commonly-used options are:
59 -O An `optimising' package of compiler flags, for faster code
61 -prof Compile for cost-centre profiling
62 (add -auto for automagic cost-centres on top-level functions)
64 -fglasgow-exts Allow Glasgow extensions (unboxed types, etc.)
66 -H14m Increase compiler's heap size
68 The User's Guide has more information about GHC's *many* options.
70 Given the above, here are some TYPICAL invocations of $Pgm:
72 # compile a Haskell module to a .o file, optimising:
74 # compile a Haskell module to C (a .hc file), using a bigger heap:
75 % $Pgm -C -H16m Foo.hs
76 # compile Haskell-produced C (.hc) to assembly language:
78 # link three .o files into an executable called "test":
79 % $Pgm -o test Foo.o Bar.o Baz.o
80 ------------------------------------------------------------------------
84 %************************************************************************
86 \section[Driver-init]{Initialisation}
88 %************************************************************************
90 Establish what executables to run for the various phases (all the
91 \tr{$(FOO)} make-variables are \tr{msub}bed for from the
92 \tr{Makefile}), what the default options are for those phases, and
93 other similar boring stuff.
95 select(STDERR); $| = 1; select(STDOUT); # no STDERR buffering, please.
97 $HostPlatform = '$(HOSTPLATFORM)';
98 $TargetPlatform = '$(TARGETPLATFORM)';
100 #------------------------------------------------------------------------
101 # If you are adjusting paths by hand for a binary GHC distribution,
102 # de-commenting the line to set GLASGOW_HASKELL_ROOT should do.
103 # Or you can leave it as is, and set the environment variable externally.
104 #------------------------------------------------------------------------
105 # $ENV{'GLASGOW_HASKELL_ROOT'} = '/some/absolute/path/name';
107 if (! $ENV{'GLASGOW_HASKELL_ROOT'}) { # good -- death to environment variables
108 $TopPwd = '$(TOP_PWD)';
109 $InstLibDirGhc = '$(INSTLIBDIR_GHC)';
110 $InstDataDirGhc = '$(INSTDATADIR_GHC)';
112 $TopPwd = $ENV{'GLASGOW_HASKELL_ROOT'};
114 if ('$(INSTLIBDIR_GHC)' =~ /.*(\/lib\/ghc\/\d\.\d\d\/[^-]-[^-]-[^-]\/.*)/) {
115 $InstLibDirGhc = $ENV{'GLASGOW_HASKELL_ROOT'} . $1;
117 print STDERR "GLASGOW_HASKELL_ROOT environment variable is set;\nBut can't untangle $(INSTLIBDIR_GHC).\n(Installation error)\n";
121 if ('$(INSTDATADIR_GHC)' =~ /.*(\/lib\/ghc\/\d\.\d\d\/.*)/) {
122 $InstDataDirGhc = $ENV{'GLASGOW_HASKELL_ROOT'} . $2;
124 print STDERR "GLASGOW_HASKELL_ROOT environment variable is set;\nBut can't untangle $(INSTDATADIR_GHC).\n(Installation error)\n";
129 if ( $(INSTALLING) ) {
130 $InstSysLibDir = $InstDataDirGhc;
131 $InstSysLibDir =~ s/\/ghc\//\/hslibs\//;
133 $InstSysLibDir = "$TopPwd/hslibs";
136 $Status = 0; # just used for exit() status
139 # set up signal handler
140 sub quit_upon_signal { &tidy_up_and_die(1, ''); }
141 $SIG{'INT'} = 'quit_upon_signal';
142 $SIG{'QUIT'} = 'quit_upon_signal';
144 # where to get "require"d .prl files at runtime (poor man's dynamic loading)
145 # (use LIB, not DATA, because we can't be sure of arch-independence)
146 @INC = ( ( $(INSTALLING) ) ? $InstLibDirGhc
147 : "$TopPwd/$(CURRENT_DIR)" );
149 if ( $ENV{'TMPDIR'} ) { # where to make tmp file names
150 $Tmp_prefix = ($ENV{'TMPDIR'} . "/ghc$$");
152 $Tmp_prefix ="$(TMPDIR)/ghc$$";
153 $ENV{'TMPDIR'} = '$(TMPDIR)'; # set the env var as well
156 @Files_to_tidy = (); # files we nuke in the case of abnormal termination
158 $Unlit = ( $(INSTALLING) ) ? "$InstLibDirGhc/unlit"
159 : "$TopPwd/$(CURRENT_DIR)/$(GHC_UNLIT)";
163 $Diff = '$(CONTEXT_DIFF)';
168 $HsCpp = # but this is re-set to "cat" (after options) if -cpp not seen
169 ( $(INSTALLING) ) ? "$InstLibDirGhc/hscpp"
170 : "$TopPwd/$(CURRENT_DIR)/$(GHC_HSCPP)";
173 $genSPECS_flag = ''; # See ../utils/hscpp/hscpp.prl
174 $HsC = ( $(INSTALLING) ) ? "$InstLibDirGhc/hsc"
175 : "$TopPwd/$(CURRENT_DIR)/$(GHC_HSC)";
177 # For PVM fiends only
178 $SysMan = ( $(INSTALLING) ) ? "$InstLibDirGhc/SysMan"
179 : "$TopPwd/$(CURRENT_DIR)/$(GHC_SYSMAN)";
184 # HsC_rts_flags: if we want to talk to the LML runtime system
185 # NB: we don't use powers-of-2 sizes, because this may do
186 # terrible things to cache behavior.
187 $Specific_heap_size = 6 * 1000 * 1000;
188 $Specific_stk_size = 1000 * 1000;
189 $Scale_sizes_by = 1.0;
192 @HsP_flags = (); # these are the flags destined solely for
193 # the flex/yacc parser
198 The optimisations/etc to be done by the compiler are {\em normally}
199 expressed with a \tr{-O} (or \tr{-O2}) flag, or by its absence.
202 $OptLevel = 0; # no -O == 0; -O == 1; -O2 == 2; -Ofile == 3
203 $MinusO2ForC = 0; # set to 1 if -O2 should be given to C compiler
204 $StolenX86Regs = 4; # **HACK*** of the very worst sort
208 These variables represent parts of the -O/-O2/etc ``templates,''
209 which are filled in later, using these.
210 These are the default values, which may be changed by user flags.
214 $Oopt_UnfoldingUseThreshold = '-fsimpl-uf-use-threshold3';
215 $Oopt_MaxSimplifierIterations = '-fmax-simplifier-iterations4';
216 $Oopt_PedanticBottoms = '-fpedantic-bottoms'; # ON by default
217 $Oopt_MonadEtaExpansion = '';
218 $Oopt_FinalStgProfilingMassage = '';
220 $Oopt_SpecialiseUnboxed = '';
221 $Oopt_DoSpecialise = ''; # ToDo:LATER: '-fspecialise';
222 $Oopt_FoldrBuild = 0; # *Off* by default!
223 $Oopt_FB_Support = ''; # was '-fdo-arity-expand';
224 # $Oopt_FoldrBuildWW = 0; # Off by default
225 $Oopt_FoldrBuildInline = ''; # was '-fdo-inline-foldr-build';
226 } # end of setupOptFlags
231 Things to do with C compilers/etc:
233 $CcRegd = '$(GHC_OPT_HILEV_ASM)';
234 @CcBoth_flags = ('-S'); # flags for *any* C compilation
237 # GCC flags: those for all files, those only for .c files; those only for .hc files
238 @CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__');
239 @CcRegd_flags_c = ();
240 @CcRegd_flags_hc = ();
242 $As = ''; # "assembler" is normally GCC
245 $Lnkr = ''; # "linker" is normally GCC
248 # 'nm' is used for consistency checking (ToDo: mk-world-ify)
249 # ToDo: check the OS or something ("alpha" is surely not the crucial question)
250 $Nm = ($TargetPlatform =~ /^alpha-/) ? 'nm -B' : 'nm';
253 What options \tr{-user-setup-a} turn into (user-defined ``packages''
254 of options). Note that a particular user-setup implies a particular
255 Prelude ({\em including} its interface file(s)).
257 $BuildTag = ''; # default is sequential build w/ Appel-style GC
259 %BuildAvail = ('', '$(Build_normal)',
263 '_mc', '$(Build_mc)',
264 '_mr', '$(Build_mr)',
265 '_mt', '$(Build_mt)',
266 '_mp', '$(Build_mp)',
267 '_mg', '$(Build_mg)',
268 '_2s', '$(Build_2s)',
269 '_1s', '$(Build_1s)',
270 '_du', '$(Build_du)',
287 '_B', '$(Build_B)' );
289 %BuildDescr = ('', 'normal sequential',
291 '_t', 'ticky-ticky profiling',
292 #OLD: '_u', 'unregisterized (using portable C only)',
294 '_mr', 'profiled concurrent',
295 '_mt', 'ticky concurrent',
300 '_du', 'dual-mode GC',
317 '_B', 'user way B' );
319 # these are options that are "fed back" through the option processing loop
320 %UserSetupOpts = ('_a', '$(GHC_BUILD_OPTS_a)',
321 '_b', '$(GHC_BUILD_OPTS_b)',
322 '_c', '$(GHC_BUILD_OPTS_c)',
323 '_d', '$(GHC_BUILD_OPTS_d)',
324 '_e', '$(GHC_BUILD_OPTS_e)',
325 '_f', '$(GHC_BUILD_OPTS_f)',
326 '_g', '$(GHC_BUILD_OPTS_g)',
327 '_h', '$(GHC_BUILD_OPTS_h)',
328 '_i', '$(GHC_BUILD_OPTS_i)',
329 '_j', '$(GHC_BUILD_OPTS_j)',
330 '_k', '$(GHC_BUILD_OPTS_k)',
331 '_l', '$(GHC_BUILD_OPTS_l)',
332 '_m', '$(GHC_BUILD_OPTS_m)',
333 '_n', '$(GHC_BUILD_OPTS_n)',
334 '_o', '$(GHC_BUILD_OPTS_o)',
335 '_A', '$(GHC_BUILD_OPTS_A)',
336 '_B', '$(GHC_BUILD_OPTS_B)',
338 # the GC ones don't have any "fed back" options
343 # per-build code fragments which are eval'd
344 %EvaldSetupOpts = ('', '', # this one must *not* be set!
346 # profiled sequential
347 '_p', 'push(@HsC_flags, \'-fscc-profiling\');
348 push(@CcBoth_flags, \'-DPROFILING\');',
351 #push(@CcBoth_flags, '-DPROFILING_DETAIL_COUNTS');
353 # ticky-ticky sequential
354 '_t', 'push(@HsC_flags, \'-fticky-ticky\');
355 push(@CcBoth_flags, \'-DTICKY_TICKY\');',
357 #OLD: # unregisterized (ToDo????)
361 '_mc', '$StkChkByPageFaultOK = 0;
362 push(@HsC_flags, \'-fconcurrent\');
363 push(@HsCpp_flags,\'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\');
364 push(@Cpp_define, \'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\');',
366 # profiled concurrent
367 '_mr', '$StkChkByPageFaultOK = 0;
368 push(@HsC_flags, \'-fconcurrent\', \'-fscc-profiling\');
369 push(@HsCpp_flags,\'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\');
370 push(@Cpp_define, \'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\', \'-DPROFILING\');',
372 # ticky-ticky concurrent
373 '_mt', '$StkChkByPageFaultOK = 0;
374 push(@HsC_flags, \'-fconcurrent\', \'-fticky-ticky\');
375 push(@HsCpp_flags,\'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\');
376 push(@Cpp_define, \'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\', \'-DTICKY_TICKY\');',
379 '_mp', '$StkChkByPageFaultOK = 0;
380 push(@HsC_flags, \'-fconcurrent\');
381 push(@HsCpp_flags,\'-D__PARALLEL_HASKELL__\', \'-DPAR\');
382 push(@Cpp_define, \'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\', \'-DPAR\');',
385 '_mg', '$StkChkByPageFaultOK = 0;
386 push(@HsC_flags, \'-fconcurrent\', \'-fgransim\');
387 push(@HsCpp_flags,\'-D__GRANSIM__\', \'-DGRAN\');
388 push(@Cpp_define, \'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\', \'-DGRAN\');',
390 '_2s', 'push (@CcBoth_flags, \'-DGC2s\');',
391 '_1s', 'push (@CcBoth_flags, \'-DGC1s\');',
392 '_du', 'push (@CcBoth_flags, \'-DGCdu\');',
394 '_a', '', # these user-way guys should not be set!
413 Import/include directories (\tr{-I} options) are sufficiently weird to
414 require special handling.
416 @Import_dir = ('.'); #-i things
417 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
419 @SysImport_dir = ( $(INSTALLING) )
420 ? ( "$InstDataDirGhc/imports" )
421 : ( "$TopPwd/$(CURRENT_DIR)/$(GHC_LIBSRC)/ghc"
422 , "$TopPwd/$(CURRENT_DIR)/$(GHC_LIBSRC)/glaExts"
423 , "$TopPwd/$(CURRENT_DIR)/$(GHC_LIBSRC)/required"
424 , "$TopPwd/$(CURRENT_DIR)/$(GHC_LIBSRC)/concurrent" );
426 # We need to look in ghc/ and glaExts/ when searching for implicitly needed .hi files, but
427 # we should really *not* look there for explicitly imported modules.
429 $GhcVersionInfo = int ($(PROJECTVERSION) * 100);
430 $Haskell1Version = 3; # i.e., Haskell 1.3
433 @UserLibrary_dir= (); #-L things;...
434 @UserLibrary = (); #-l things asked for by the user
436 @SysLibrary_dir = ( ( $(INSTALLING) ) #-syslib things supplied by the system
438 : ( "$TopPwd/$(CURRENT_DIR)/$(GHC_RUNTIMESRC)"
439 , "$TopPwd/$(CURRENT_DIR)/$(GHC_RUNTIMESRC)/gmp"
440 , "$TopPwd/$(CURRENT_DIR)/$(GHC_LIBSRC)"
441 , "$TopPwd/$(CURRENT_DIR)/$(GHC_LIBSRC)/cbits"
444 @SysLibrary = (); # will be built up as we go along
446 $TopClosureFile # defaults to 1.2 one; will be mangled later
447 = ( $(INSTALLING) ) ? "$InstLibDirGhc/TopClosureXXXX.o"
448 : "$TopPwd/$(CURRENT_DIR)/$(GHC_RUNTIMESRC)/main/TopClosureXXXX.o";
450 # make depend for Haskell
452 = ( $(INSTALLING) ) ? "$InstLibDirGhc/mkdependHS"
453 : "$TopPwd/$(CURRENT_DIR)/$(GHC_UTILSRC)/mkdependHS/mkdependHS";
455 @MkDependHS_flags = ( );
457 # do_link flag should not be reset while rescanning the cmd-line.
459 $Specific_output_dir = ''; # set by -odir <dir>
460 $Specific_output_file = ''; # set by -o <file>; "-" for stdout
463 Function to initialise the per-compilation-unit globals that
464 are used to guide and control the invocation of the different phases.
467 sub initDriverGlobals {
469 # reset the following options:
470 # RTS flags to use while compiling
472 @HsP_flags = (); # these are the flags destined solely for
473 # the flex/yacc parser
477 $OptLevel = 0; # no -O == 0; -O == 1; -O2 == 2; -Ofile == 3
478 $MinusO2ForC = 0; # set to 1 if -O2 should be given to C compiler
479 $StolenX86Regs = 4; # **HACK*** of the very worst sort
482 # reset flags used to guide the meaning of -O<level>
485 @CcBoth_flags = ('-S'); # flags for *any* C compilation
488 # GCC flags: those for all files, those only for .c files; those only for .hc files
489 @CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__');
490 @CcRegd_flags_c = ();
491 @CcRegd_flags_hc = ();
493 @Import_dir = ('.'); #-i things
494 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
499 We are given a list of files with various presumably-known suffixes
500 (unknown-suffix files go straight to the linker). For each file, we
501 begin by assuming that we'll run every phase over it. However: (1)
502 global flags (\tr{-c}, \tr{-S}, etc.) tell us not to run any phase
503 past a certain point; and (2) the file's suffix tells us what phase to
504 start with. Linking is weird and kept track of separately.
506 Here are the initial defaults applied to all files:
508 $Cpp_flag_set = 0; # (hack)
509 $Only_preprocess_C = 0; # pretty hackish
510 $Only_generate_deps = 0; #
511 $PostprocessCcOutput = 0;
513 # native code-gen or via C?
514 $HaveNativeCodeGen = $(GhcWithNativeCodeGen);
515 $HscOut = '-C='; # '-C=' ==> .hc output; '-S=' ==> .s output; '-N=' ==> neither
517 if $HaveNativeCodeGen && $TargetPlatform =~ /^(alpha|sparc)-/; #ToDo: add |i386 !
518 $ProduceHi = '-hifile=';
522 $CollectingGCstats = 0;
523 $CollectGhcTimings = 0;
524 $DEBUGging = ''; # -DDEBUG and all that it entails (um... not really)
525 $PROFing = ''; # set to p or e if profiling
526 $PROFgroup = ''; # set to group if an explicit -Ggroup specified
527 $PROFauto = ''; # set to relevant hsc flag if -auto or -auto-all
528 $PROFcaf = ''; # set to relevant hsc flag if -caf-all
529 $PROFignore_scc = ''; # set to relevant parser flag if explicit sccs ignored
530 $UNPROFscc_auto = ''; # set to relevant hsc flag if forcing auto sccs without profiling
531 $TICKYing = ''; # set to t if compiling for ticky-ticky profiling
532 $PARing = ''; # set to p if compiling for PAR
533 $CONCURing = ''; # set to c if compiling for CONCURRENT
534 $GRANing = ''; # set to g if compiling for GRAN
535 $StkChkByPageFaultOK = 1; # may be set to 0 (false) for some builds
536 $Specific_hi_file = ''; # set by -ohi <file>; "-" for stdout
537 $Specific_dump_file = ''; # set by -odump <file>; "-" for stdout
538 $Using_dump_file = 0;
540 $Osuffix = ''; # default: use the normal suffix for that kind of output
542 $Do_recomp_chkr = 0; # don't use the recompilatio checker unless asked
543 $Do_cc = -1; # a MAGIC indeterminate value; will be set to 1 or 0.
546 $Keep_hc_file_too = 0;
547 $Keep_s_file_too = 0;
548 $UseGhcInternals = 0; # if 1, may use GHC* modules
551 $Dump_parser_output = 0;
553 $Dump_asm_splitting_info = 0;
554 $NoImplicitPrelude = 0;
557 } # end of initDriverGlobals (Sigh)
559 # we split the argv passed to the driver into three:
564 # and files to be linked...
572 We inject consistency-checking information into \tr{.hc} files (both
573 when created by the Haskell compiler and when compiled by the C
574 compiler), so that we can check that an executable is made from
575 consistently-built pieces. (The check is normally done just after
576 linking.) The checking is done by introducing/munging
577 \tr{what(1)}-style strings. Anyway, here are the relevant global
578 variables and their defaults:
580 $LinkChk = 1; # set to 0 if the link check should *not* be done
582 # major & minor version numbers; major numbers must always agree;
583 # minor disagreements yield a warning.
584 $HsC_major_version = 30;
585 $HsC_minor_version = 0;
586 $Cc_major_version = 35;
587 $Cc_minor_version = 0;
589 # options: these must always agree
590 $HsC_consist_options = ''; # we record, in this order:
591 # Build tag; debugging?
592 $Cc_consist_options = ''; # we record, in this order:
593 # Build tag; debugging?
596 %************************************************************************
598 \section[Driver-parse-argv]{Munge the command-line options}
600 %************************************************************************
602 Now slurp through the arguments.
605 #---------- user defined prelude ---------------------------------------
607 if (grep(/^-user-prelude$/, @ARGV)) {
609 # If ARGV contains -user-prelude we are compiling a piece of
610 # prelude for the user, probably with additional specialise pragmas
612 # We strip out the -O -f and -user-prelude flags provided on
613 # the command line and add the ones used to compile the prelude
614 # ToDo: get these options from a common definition in mkworld
616 # We also enable any options forced through with -user-prelude-force
618 # Hey, Check out this grep statement ;-) (PS)
620 @ARGV = grep((!/^-O/ && !/^-f/ && !/^-user-prelude$/) || s/^-user-prelude-force//,
624 '-fcompiling-ghc-internals=???', # ToDo!!!!
626 '-fshow-pragma-name-errs',
627 '-fshow-import-specs',
633 print STDERR "ghc: -user-prelude options:\n", "@ARGV", "\n";
636 &initDriverGlobals();
637 &splitCmdLine(@ARGV);
638 # Run through the cmd-line first time.
639 &processArgs(@Cmd_opts);
641 # Check to see if driver is only in the business
642 # to generate dependencies
643 if ( $Status == 0 && $Only_generate_deps ) {
645 push (@MkDependHS_flags, "-o$Osuffix") if $Osuffix;
646 push (@MkDependHS_flags, "-s$BuildTag") if $BuildTag;
647 local($to_do) = "$MkDependHS @MkDependHS_flags -- @Cmd_opts -- @Input_file" ;
648 &run_something($to_do, 'Haskell dependencies');
652 # if there are several input files,
653 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
654 # (except if linking, of course)
656 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
657 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
658 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
659 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
660 print STDERR "\tPerhaps the -odir option will do what you want.\n";
665 # check for various pathological -o and -odir combinations...
666 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
667 if ($Specific_output_file eq '-') {
668 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
670 } else { # amalgamate...
671 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
672 # ToDo: check we haven't got a junk name now...
673 $Specific_output_dir = ''; # reset
677 # PROFILING stuff after argv mangling:
679 # warn about any scc exprs found (in case scc used as identifier)
680 push(@HsP_flags, '-W');
682 # add -auto sccs even if not profiling !
683 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
686 push(@HsC_flags, $PROFauto) if $PROFauto;
687 push(@HsC_flags, $PROFcaf) if $PROFcaf;
688 #push(@HsC_flags, $PROFdict) if $PROFdict;
690 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
692 push(@HsP_flags, (($PROFignore_scc) ? $PROFignore_scc : '-S'));
694 if ( $SplitObjFiles ) {
695 # can't split with cost centres -- would need global and externs
696 print STDERR "$Pgm: WARNING: splitting objects when profiling will *BREAK* if any _scc_s are present!\n";
697 # (but it's fine if there aren't any _scc_s around...)
698 # $SplitObjFiles = 0; # unset
699 #not an error: for now: $Status++;
703 # crash and burn if there were errors
705 print STDERR $ShortUsage;
710 %************************************************************************
712 \section[Driver-post-argv-mangling]{Setup after reading options}
714 %************************************************************************
716 %************************************************************************
718 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
720 %************************************************************************
722 We come now to the default ``wads of options'' that are turned on by
723 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
724 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
727 The user can also specify his/her own list of options in a file; in
728 that case, the work is already done (see stuff about @minusO3@,
731 GHC allows very precise control of what happens during a compilation.
732 Core-to-Core and STG-to-STG passes can be run in any order, as many
733 times as you like. Individual transformations can be turned on or
736 Sadly, however, there are some interdependencies \& Things You Must
737 Not Do. Here is the list.
741 \item[\tr{-fspecialise}:]
742 The specialiser must have dependency-analysed input; but if you run
743 the simplifier to do this, you must not let it toss away unused
744 bindings! (The typechecker conveys some specialisation info via
745 ``unused'' bindings...)
747 \item[\tr{-ffloat-inwards}:]
748 Floating inwards should be done before strictness analysis, because
749 the latter will give better results.
751 \item[\tr{-fstatic-args}:]
752 The static-arguments-transformation pass {\em must} have the
753 simplifier run right after it.
755 \item[\tr{-fcalc-inlinings[12]}:]
756 Not required, but there may be slight gains by re-simplifying after
757 this is done. (You could then \tr{-fcalc-inlinings} again, just for
760 \item[\tr{-ffull-laziness}:]
761 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
762 that's run. (Um, well, howzabout the simplifier just once more...)
767 \item[\tr{-fupdate-analysis}:]
768 It really really wants to be the last STG-to-STG pass that is run.
773 sub setupOptimiseFlags {
779 # '-falways-float-lets-from-lets', # no idea why this was here (WDP 95/09)
780 '-ffloat-lets-exposing-whnf',
781 '-ffloat-primops-ok',
783 # '-fdo-lambda-eta-expansion', # too complicated
785 # '-flet-to-case', # no strictness analysis, so...
786 $Oopt_PedanticBottoms,
787 # $Oopt_MonadEtaExpansion, # no thanks
788 '-fsimpl-uf-use-threshold0',
789 '-fessential-unfoldings-only',
790 # $Oopt_UnfoldingUseThreshold, # no thanks
791 $Oopt_MaxSimplifierIterations,
794 # '-ffull-laziness', # removed 95/04 WDP following Andr\'e's lead
796 $Oopt_FinalStgProfilingMassage
799 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
801 '-fdo-eta-reduction',
803 # initial simplify: mk specialiser happy: minimum effort please
807 '-fkeep-spec-pragma-ids', # required before specialisation
808 '-fsimpl-uf-use-threshold0',
809 '-fessential-unfoldings-only',
810 '-fmax-simplifier-iterations1',
811 $Oopt_PedanticBottoms,
814 ($Oopt_DoSpecialise) ? (
815 '-fspecialise-overloaded',
816 $Oopt_SpecialiseUnboxed,
820 '-fsimplify', # need dependency anal after specialiser ...
821 '\(', # need tossing before calc-inlinings ...
823 '-ffloat-lets-exposing-whnf',
824 '-ffloat-primops-ok',
828 # '-fdo-eta-reduction',
829 '-fdo-lambda-eta-expansion',
831 $Oopt_PedanticBottoms,
832 $Oopt_MonadEtaExpansion,
833 $Oopt_UnfoldingUseThreshold,
834 $Oopt_MaxSimplifierIterations,
837 #LATER: '-fcalc-inlinings1', -- pointless for 2.01
839 # ($Oopt_FoldrBuildWW) ? (
840 # '-ffoldr-build-ww-anal',
841 # '-ffoldr-build-worker-wrapper',
845 # '-ffloat-lets-exposing-whnf',
846 # '-ffloat-primops-ok',
850 # '-fdo-eta-reduction',
851 # '-fdo-lambda-eta-expansion',
853 # $Oopt_PedanticBottoms,
854 # $Oopt_MonadEtaExpansion,
855 # $Oopt_UnfoldingUseThreshold,
856 # $Oopt_MaxSimplifierIterations,
860 # this pass-ordering sequence was agreed by Simon and Andr\'e
861 # (WDP 94/07, 94/11).
864 ($Oopt_FoldrBuild) ? (
865 '-ffoldr-build-on', # desugar list comprehensions for foldr/build
869 '-fignore-inline-pragma', # **** NB!
870 '-fdo-foldr-build', # NB
872 '-ffloat-lets-exposing-whnf',
873 '-ffloat-primops-ok',
877 # '-fdo-eta-reduction',
878 '-fdo-lambda-eta-expansion', # After full laziness
880 $Oopt_PedanticBottoms,
881 $Oopt_MonadEtaExpansion,
882 $Oopt_UnfoldingUseThreshold,
883 $Oopt_MaxSimplifierIterations,
892 '-ffloat-lets-exposing-whnf',
893 '-ffloat-primops-ok',
897 '-fdo-eta-reduction',
898 '-fdo-lambda-eta-expansion',
900 ($Oopt_FoldrBuildInline),
901 # you need to inline foldr and build
902 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
903 # but do reductions if you see them!
904 $Oopt_PedanticBottoms,
905 $Oopt_MonadEtaExpansion,
906 $Oopt_UnfoldingUseThreshold,
907 $Oopt_MaxSimplifierIterations,
915 '-ffloat-lets-exposing-whnf',
916 '-ffloat-primops-ok',
920 # '-fdo-eta-reduction',
921 '-fdo-lambda-eta-expansion',
923 '-flet-to-case', # Aha! Only done after strictness analysis
924 $Oopt_PedanticBottoms,
925 $Oopt_MonadEtaExpansion,
926 $Oopt_UnfoldingUseThreshold,
927 $Oopt_MaxSimplifierIterations,
932 # Case-liberation for -O2. This should be after
933 # strictness analysis and the simplification which follows it.
937 # : "-fliberate-case -fsimplify \\( $Oopt_FB_Support -ffloat-lets-exposing-whnf -ffloat-primops-ok -fcase-of-case -fdo-case-elim -fcase-merge -fdo-eta-reduction -fdo-lambda-eta-expansion -freuse-con -flet-to-case $Oopt_PedanticBottoms $Oopt_MonadEtaExpansion $Oopt_UnfoldingUseThreshold $Oopt_MaxSimplifierIterations \\)" ),
939 # Final clean-up simplification:
944 '-ffloat-lets-exposing-whnf',
945 '-ffloat-primops-ok',
949 # '-fdo-eta-reduction',
950 '-fdo-lambda-eta-expansion',
953 '-fignore-inline-pragma', # **** NB!
954 $Oopt_FoldrBuildInline,
955 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
956 # but still do reductions if you see them!
957 $Oopt_PedanticBottoms,
958 $Oopt_MonadEtaExpansion,
959 $Oopt_UnfoldingUseThreshold,
960 $Oopt_MaxSimplifierIterations,
965 #LATER: '-fcalc-inlinings2', -- pointless for 2.01
970 $Oopt_FinalStgProfilingMassage,
976 # SPECIAL FLAGS for -O2
984 Sort out what we're going to do about optimising. First, the @hsc@
985 flags and regular @cc@ flags to worry about:
987 if ( $OptLevel <= 0 ) {
989 # for this level, we tell the parser -fignore-interface-pragmas
990 push(@HsC_flags, '-fignore-interface-pragmas');
991 # and tell the compiler not to produce them
992 push(@HsC_flags, '-fomit-interface-pragmas');
994 &add_Hsc_flags( @HsC_minusNoO_flags );
995 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
997 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
999 &add_Hsc_flags( @HsC_minusO_flags );
1000 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
1001 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
1002 # but it *is* useful in compiling the garbage collectors (so said
1003 # Patrick many moons ago...).
1005 } else { # -Ofile, then...
1007 &add_Hsc_flags( @HsC_minusO3_flags );
1008 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
1011 } # setupOptimiseFlags
1015 %************************************************************************
1017 \subsection{Check for consistency, etc.}
1019 %************************************************************************
1021 Sort out @$BuildTag@, @$PROFing@, @$CONCURing@, @$PARing@,
1022 @$GRANing@, @$TICKYing@:
1024 sub setupBuildFlags {
1026 if ( $BuildTag ne '' ) {
1027 local($b) = $BuildDescr{$BuildTag};
1028 if ($CONCURing eq 'c') { print STDERR "$Pgm: Can't mix $b with -concurrent.\n"; exit 1; }
1029 if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
1030 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
1031 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
1033 # ok to have a user-way profiling build
1034 # eval the profiling opts ... but leave user-way BuildTag
1035 if ($PROFing eq 'p') { eval($EvaldSetupOpts{'_p'}); }
1037 } elsif ( $PROFing eq 'p' ) {
1038 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
1039 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
1040 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
1041 $BuildTag = ($CONCURing eq 'c') ? '_mr' : '_p' ; # possibly "profiled concurrent"...
1043 } elsif ( $CONCURing eq 'c' ) {
1044 if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix -concurrent with -parallel.\n"; exit 1; }
1045 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -concurrent with -gransim.\n"; exit 1; }
1046 $BuildTag = ($TICKYing eq 't') ? '_mt' : '_mc' ; # possibly "ticky concurrent"...
1047 # "profiled concurrent" already acct'd for...
1049 } elsif ( $PARing eq 'p' ) {
1050 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
1051 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
1054 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
1055 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
1059 } elsif ( $GRANing eq 'g' ) {
1060 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
1063 } elsif ( $TICKYing eq 't' ) {
1069 After the sanity checks, add flags to the necessary parts of the driver pipeline:
1072 if ( $BuildTag ne '' ) { # something other than normal sequential...
1074 local($Tag) = $BuildTag;
1075 $Tag =~ s/_//; # move the underscore to the back
1076 push(@HsP_flags, "-hisuf=.${Tag}_hi"); # use appropriate Prelude .hi files
1078 $HscOut = '-C='; # must go via C
1080 eval($EvaldSetupOpts{$BuildTag});
1084 Decide what the consistency-checking options are in force for this run:
1086 $HsC_consist_options = "${BuildTag},${DEBUGging}";
1087 $Cc_consist_options = "${BuildTag},${DEBUGging}";
1092 %************************************************************************
1094 \subsection{Add on machine-specific C-compiler flags}
1096 %************************************************************************
1098 Shove on magical machine-specific options. We use \tr{unshift} to
1099 stick them on the {\em front} of the arrays, so that ``later''
1100 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
1102 Note: a few ``always apply'' flags were set at the very beginning.
1107 if ($TargetPlatform =~ /^alpha-/) {
1108 # we know how to *mangle* asm for alpha
1109 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1110 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1111 unshift(@CcBoth_flags, ('-static'));
1113 } elsif ($TargetPlatform =~ /^hppa/) {
1114 # we know how to *mangle* asm for hppa
1115 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1116 unshift(@CcBoth_flags, ('-static'));
1117 # We don't put in '-mlong-calls', because it's only
1118 # needed for very big modules (sigh), and we don't want
1119 # to hobble ourselves further on all the other modules
1121 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
1122 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
1123 # (very nice, but too bad the HP /usr/include files don't agree.)
1125 } elsif ($TargetPlatform =~ /^i386-/) {
1126 # we know how to *mangle* asm for X86
1127 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1128 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1130 # -fno-defer-pop : basically the same game as for m68k
1132 # -fomit-frame-pointer : *must* ; because we're stealing
1133 # the fp (%ebp) for our register maps. *All* register
1134 # maps (in MachRegs.lh) must steal it.
1136 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1137 unshift(@CcRegd_flags, '-fomit-frame-pointer');
1138 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1140 } elsif ($TargetPlatform =~ /^m68k-/) {
1141 # we know how to *mangle* asm for m68k
1142 unshift (@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1143 unshift (@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1145 # -fno-defer-pop : for the .hc files, we want all the pushing/
1146 # popping of args to routines to be explicit; if we let things
1147 # be deferred 'til after an STGJUMP, imminent death is certain!
1149 # -fomit-frame-pointer : *don't*
1150 # It's better to have a6 completely tied up being a frame pointer
1151 # rather than let GCC pick random things to do with it.
1152 # (If we want to steal a6, then we would try to do things
1153 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1155 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1156 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1157 # maybe gives reg alloc a better time
1158 # also: -fno-defer-pop is not sufficiently well-behaved without it
1160 } elsif ($TargetPlatform =~ /^mips-/) {
1161 # we (hope to) know how to *mangle* asm for MIPSen
1162 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1163 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1164 unshift(@CcBoth_flags, ('-static'));
1166 } elsif ($TargetPlatform =~ /^powerpc-/) {
1167 # we know how to *mangle* asm for PowerPC
1168 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1169 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1170 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1171 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1173 } elsif ($TargetPlatform =~ /^sparc-/) {
1174 # we know how to *mangle* asm for SPARC
1175 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1176 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1179 } # end of setupMachOpts
1182 Same unshifting magic, but for special linker flags.
1184 Should really be whether or not we prepend underscores to global symbols,
1185 not an architecture test. (JSM)
1189 $Under = ( $TargetPlatform =~ /^alpha-/
1190 || $TargetPlatform =~ /^hppa/
1191 || $TargetPlatform =~ /^mips-sgi-irix/
1192 || $TargetPlatform =~ /^powerpc-/
1193 || $TargetPlatform =~ /-solaris/
1194 || $TargetPlatform =~ /-linux$/
1200 '-u', "${Under}Main_" . $Ld_main . '_closure',
1202 # , '-u', "${Under}STbase_unsafePerformPrimIO_fast1"
1203 # , '-u', "${Under}Prelude_Z91Z93_closure" # i.e., []
1204 # , '-u', "${Under}Prelude_IZh_static_info"
1205 # , '-u', "${Under}Prelude_False_inregs_info"
1206 # , '-u', "${Under}Prelude_True_inregs_info"
1207 # , '-u', "${Under}Prelude_CZh_static_info"
1208 # , '-u', "${Under}DEBUG_REGS"
1210 ; # just for fun, now...
1212 } # end of setupLinkOpts
1216 %************************************************************************
1218 \subsection{Set up include paths and system-library enslurpment}
1220 %************************************************************************
1222 Now that we know what garbage-collector, etc., are required, we can
1223 finalise our list of libraries to slurp through, and generally Get
1228 # default includes must be added AFTER option processing
1229 if ( ! $(INSTALLING) ) {
1230 push (@Include_dir, "$TopPwd/$(CURRENT_DIR)/$(GHC_INCLUDESRC)");
1232 push (@Include_dir, "$InstLibDirGhc/includes");
1233 push (@Include_dir, "$InstDataDirGhc/includes");
1235 } # end of setupIncPaths
1240 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1243 foreach $f (@SysLibrary) {
1244 next if $f =~ /_cbits/;
1245 $f .= $BuildTag if $f =~ /^-lHS/;
1248 # fiddle the TopClosure file name...
1249 $TopClosureFile =~ s/XXXX//;
1251 # Push library HSrts, plus boring clib bit
1252 push(@SysLibrary, "-lHSrts${BuildTag}");
1253 push(@SysLibrary, '-lHSclib');
1254 push(@SysLibrary, '-lwinmm') if $BuildTag ne ''; # cygwin32 specific
1256 # Push the pvm libraries
1257 if ($BuildTag eq '_mp') {
1258 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1259 push(@SysLibrary, "-L$pvmlib", '-lpvm3', '-lgpvm3');
1260 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1261 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1262 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1263 push(@SysLibrary, '-lsocket', '-lnsl');
1267 # Push the GNU multi-precision arith lib; and the math library
1268 push(@SysLibrary, '-lgmp');
1269 push(@SysLibrary, '-lm');
1272 %************************************************************************
1274 \subsection{Check that this system was built to do what we are asking}
1276 %************************************************************************
1278 Before continuing we check that the appropriate build is available.
1281 die "$Pgm: no BuildAvail?? $BuildTag\n" if ! $BuildAvail{$BuildTag}; # sanity
1283 if ( $BuildAvail{$BuildTag} =~ /^NO$/ ) {
1284 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1285 "' \"build\" is not available with your GHC setup.\n";
1286 print STDERR "(It was not configured for it at your site.)\n";
1287 print STDERR $ShortUsage;
1291 } # end of setupSyslibs
1295 %************************************************************************
1297 \subsection{Final miscellaneous setup bits before we start going}
1299 %************************************************************************
1301 Record largest specific heapsize, if any.
1303 sub setupHeapStackSize {
1304 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1305 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1306 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1307 push(@HsC_rts_flags, "-K$Specific_stk_size");
1311 If no input or link files seen, then we let 'em feed in stdin; this is
1312 mainly for debugging.
1316 if ($#Input_file < 0 && $#Link_file < 0) {
1317 @Input_file = ( '-' );
1319 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1320 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n";
1321 while (<>) { print INF $_; }
1322 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1327 Tell the world who we are, if they asked.
1329 print STDERR "$(PROJECTNAME), version $(PROJECTVERSION) $(PROJECTPATCHLEVEL)\n"
1333 %************************************************************************
1335 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1337 %************************************************************************
1339 Process the input files; don't continue with linking if there are
1340 problems (global variable @$Status@ non-zero).
1342 foreach $ifile (@Input_file) {
1343 &ProcessInputFile($ifile);
1346 if ( $Status > 0 ) { # don't link if there were errors...
1347 print STDERR $ShortUsage;
1352 # append last minute flags linker flags (entry point)
1358 Link if appropriate.
1361 local($libdirs) = '';
1363 # glue them together:
1364 push(@UserLibrary_dir, @SysLibrary_dir);
1366 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1368 # for a linker, use an explicitly given one, or the going C compiler ...
1369 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1371 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1372 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1374 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $TopClosureFile $libdirs @UserLibrary @SysLibrary";
1375 &run_something($to_do, 'Linker');
1377 # finally, check the consistency info in the binary
1378 local($executable) = $Files_to_tidy[0];
1379 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1382 # dynamically load consistency-chking code; then do it.
1383 require('ghc-consist.prl')
1384 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1386 &chk_consistency_info ( $executable );
1389 # if PVM parallel stuff, we do truly weird things.
1390 # Essentially: (1) move the executable over to where PVM expects
1391 # to find it. (2) create a script in place of the executable
1392 # which will cause the program to be run, via SysMan.
1393 if ( $PARing eq 'p' ) {
1394 local($pvm_executable) = $executable;
1395 local($pvm_executable_base);
1397 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1398 local($pwd) = `pwd`;
1400 $pwd =~ s/^\/tmp_mnt//;
1401 $pvm_executable = "$pwd/$pvm_executable";
1404 $pvm_executable =~ s|/|=|g; # make /s into =s
1405 $pvm_executable_base = $pvm_executable;
1407 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1408 . "/$pvm_executable";
1410 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1412 # OK, now create the magic script for "$executable"
1413 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1414 print EXEC <<EOSCRIPT1;
1416 # =!=!=!=!=!=!=!=!=!=!=!
1417 # This script is automatically generated: DO NOT EDIT!!!
1418 # Generated by Glasgow Haskell, version $(PROJECTVERSION) $(PROJECTPATCHLEVEL)
1420 \$pvm_executable = '$pvm_executable';
1421 \$pvm_executable_base = '$pvm_executable_base';
1422 \$SysMan = '$SysMan';
1425 print EXEC <<\EOSCRIPT2;
1426 # first, some magical shortcuts to run "commands" on the binary
1428 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1430 system("$cmd $pvm_executable");
1434 # OK, really run it; process the args first
1435 $ENV{'PE'} = $pvm_executable_base;
1437 $nprocessors = 2; # the default
1441 # ToDo: handle --RTS
1442 args: while ($a = shift(@ARGV)) {
1443 if ( $a eq '+RTS' ) {
1445 } elsif ( $a eq '-RTS' ) {
1448 if ( $a eq '-d' && $in_RTS_args ) {
1450 } elsif ( $a =~ /^-N(\d+)/ && $in_RTS_args ) {
1453 push(@nonPVM_args, $a);
1457 local($return_val) = 0;
1458 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
1460 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
1463 close(EXEC) || die "Failed closing $executable\n";
1464 chmod 0755, $executable;
1468 # that... that's all, folks!
1470 exit $Status; # will still be 0 if all went well
1473 %************************************************************************
1475 \section[Driver-do-one-file]{How to process a single input file}
1477 %************************************************************************
1480 sub ProcessInputFile {
1481 local($ifile) = @_; # input file name
1482 local($ifile_root); # root of or basename of input file
1483 local($ofile_target); # ultimate output file we hope to produce
1484 # from input file (need to know for recomp
1485 # checking purposes)
1486 local($hifile_target);# ditto (but .hi file)
1489 Handle the weirdity of input from stdin.
1491 if ($ifile ne '-') {
1492 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1493 $ofile_target = # may be reset later...
1494 ($Specific_output_file ne '' && ! $Do_lnkr)
1495 ? $Specific_output_file
1496 : &odir_ify($ifile_root, 'o');
1497 $hifile_target= ($Specific_hi_file ne '')
1499 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1500 # NB: may change if $ifile_root isn't module name (??)
1502 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1503 $ifile_root = '_stdin';
1504 $ofile_target = '_stdout'; # gratuitous?
1505 $hifile_target= '_stdout'; # ditto?
1509 We need to decide what phases of the compilation system we will run
1510 over this file. The defaults are the ones established when processing
1511 flags. (That established what the last phase run for all files is.)
1513 We do the pre-recompilation-checker phases here; the rest later.
1517 Look at the suffix and decide what initial phases of compilation may
1518 be dropped off for this file. Also the rather boring business of
1519 which files are coming-in/going-out.
1521 Again, we'll do the post-recompilation-checker parts of this later.
1523 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1524 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1526 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1528 : ( ($HscOut eq '-C=') ? 1 : 0 );
1529 local($do_as) = $Do_as;
1531 # names of the files to stuff between phases
1532 # defaults are temporaries
1533 local($in_lit2pgm) = $ifile;
1534 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1535 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1536 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1537 local($hsc_hi) = "$Tmp_prefix.hi";
1538 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1539 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1540 local($as_out) = $ofile_target;
1542 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
1544 if ($ifile =~ /\.lhs$/) {
1545 ; # nothing to change
1546 } elsif ($ifile =~ /\.hs$/) {
1548 $lit2pgm_hscpp = $ifile;
1549 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
1550 $do_lit2pgm = 0; $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1552 } elsif ($ifile =~ /\.c$/) {
1553 $do_lit2pgm = 0; $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1554 $hsc_out = $ifile; $is_hc_file = 0;
1555 } elsif ($ifile =~ /\.s$/) {
1556 $do_lit2pgm = 0; $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
1558 } else { # don't know what it is, but nothing to do herein...
1559 $do_lit2pgm = 0; $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
1562 # OK, let's strip off some literate junk:
1563 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
1568 # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas
1569 &check_for_source_options($lit2pgm_hscpp,*File_options);
1571 # options found in the source file take a back seat, we will scan
1572 # them first. Only process the command line again if source file
1573 # contained anything of interest *or* there's more than one
1574 # input file (we have to reset the options).
1576 if ( $#Input_file > 1 || $#File_options > 0) {
1577 @File_options = (@File_options, @Cmd_opts);
1579 # Now process the command line
1580 &processArgs(@File_options);
1583 # Having got the effective command line scanned, set up
1584 # the various options in prep for some real work.
1586 &setupOptimiseFlags();
1590 &setupHeapStackSize();
1592 # hack to avoid running hscpp
1593 $HsCpp = $Cat if ! $Cpp_flag_set;
1595 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc)
1599 We now think about whether to run hsc/cc or not (when hsc produces .s
1600 stuff, it effectively takes the place of both phases).
1602 To get the output file name right: for each phase that we are {\em
1603 not} going to run, set its input (i.e., the output of its preceding
1604 phase) to @"$ifile_root.<suffix>"@.
1606 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
1608 if (! $do_cc && ! $do_as) { # stopping after hsc
1609 $hsc_out = ($Specific_output_file ne '')
1610 ? $Specific_output_file
1611 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
1613 $ofile_target = $hsc_out; # reset
1616 if (! $do_as) { # stopping after gcc (or hsc)
1617 $cc_as = ($Specific_output_file ne '')
1618 ? $Specific_output_file
1619 : &odir_ify($ifile_root, ( $Only_preprocess_C ) ? 'i' : 's');
1621 $ofile_target = $cc_as; # reset
1627 Now the Haskell compiler, C compiler, and assembler
1631 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
1632 $ofile_target, $hifile_target);
1636 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
1637 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root);
1640 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
1642 &runAs($as_out, $ifile_root) if $do_as;
1645 Finally, decide what to queue up for linker input.
1647 # tentatively assume we will eventually produce linker input:
1648 push(@Link_file, &odir_ify($ifile_root, 'o'));
1650 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
1652 if ( $ifile !~ /\.(lhs|hs|hc|c|s)$/ && $ifile !~ /_hc$/ ) {
1653 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n"
1654 if $ifile !~ /\.a$/;
1656 # oops; we tentatively pushed the wrong thing; fix & do the right thing
1657 pop(@Link_file); push(@Link_file, $ifile);
1660 &initDriverGlobals();
1662 } # end of ProcessInputFile
1665 %************************************************************************
1667 \section[Driver-run-phases]{Routines to run the various phases}
1669 %************************************************************************
1673 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
1675 local($to_do) = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && ".
1676 "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
1677 @Files_to_tidy = ( $lit2pgm_hscpp );
1679 &run_something($to_do, 'literate pre-processor');
1685 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
1689 if ($HsCpp eq $Cat) {
1690 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $hscpp_hsc && ".
1691 "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
1692 @Files_to_tidy = ( $hscpp_hsc );
1693 &run_something($to_do, 'Ineffective C pre-processor');
1695 local($includes) = '-I' . join(' -I',@Include_dir);
1696 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $hscpp_hsc && ".
1697 "$HsCpp $Verbose $genSPECS_flag @HsCpp_flags -D__HASKELL1__=$Haskell1Version -D__GLASGOW_HASKELL__=$GhcVersionInfo $includes $lit2pgm_hscpp >> $hscpp_hsc";
1698 @Files_to_tidy = ( $hscpp_hsc );
1699 &run_something($to_do, 'Haskellised C pre-processor');
1706 sub runHscAndProcessInterfaces {
1707 local($ifile, $hscpp_hsc, $ifiel_root, $ofile_target, $hifile_target) = @_;
1709 # $ifile is the original input file
1710 # $hscpp_hsc post-unlit, post-cpp, etc., input file
1711 # $ifile_root input filename minus suffix
1712 # $ofile_target the output file that we ultimately hope to produce
1713 # $hifile_target the .hi file ... (ditto)
1715 local($source_unchanged) = 1;
1717 # Check if the source file is up to date relative to the target; in
1718 # that case we say "source is unchanged" and let the compiler bale out
1719 # early if the import usage information allows it.
1721 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
1722 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
1724 if ( ! -f $ofile_target ) {
1725 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n";
1726 $source_unchanged = 0;
1729 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
1730 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
1732 if ( ! -f $hifile_target ) {
1733 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n";
1734 $source_unchanged = 0;
1737 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
1738 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
1740 if ($i_mtime > $o_mtime) {
1741 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n";
1742 $source_unchanged = 0;
1745 # So if source_unchanged is still "1", we pass on the good news to the compiler
1746 # The -recomp flag can disable this, forcing recompilation
1747 if ($Do_recomp_chkr && $source_unchanged) {
1748 push(@HsC_flags, '-fsource-unchanged');
1753 &runHsc($ifile_root, $hsc_out, $hsc_hi, $going_interactive);
1755 # See if it bailed out early, saying nothing needed doing.
1756 # We work this out by seeing if it created an output .hi file
1758 if ( ! -f $hsc_hi ) {
1759 # Doesn't exist, so we bailed out early.
1760 # Tell the C compiler and assembler not to run
1761 $do_cc = 0; $do_as = 0;
1763 # Update dependency info
1764 &run_something("touch $ofile_target", "Touch $ofile_target, to propagate dependencies");
1768 # Didn't bail out early (new .hi file) so we thunder on
1770 # If non-interactive, heave in the consistency info at the end
1771 # NB: pretty hackish (depends on how $output is set)
1772 if ( ! $going_interactive ) {
1773 if ( $HscOut eq '-C=' ) {
1774 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
1776 } elsif ( $HscOut eq '-S=' ) {
1777 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
1778 $consist =~ s/,/./g;
1779 $consist =~ s/\//./g;
1780 $consist =~ s/-/_/g;
1781 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
1782 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
1784 &run_something($to_do, 'Pin on Haskell consistency info');
1788 # Interface-handling is important enough to live off by itself
1789 require('ghc-iface.prl')
1790 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
1792 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
1794 # save a copy of the .hc file, even if we are carrying on...
1795 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
1796 local($to_do) = "$Rm $ifile_root.hc; $Cp $hsc_out $ifile_root.hc";
1797 &run_something($to_do, 'Saving copy of .hc file');
1800 # save a copy of the .s file, even if we are carrying on...
1801 if ($HscOut eq '-S=' && $do_as && $Keep_s_file_too) {
1802 local($to_do) = "$Rm $ifile_root.s; $Cp $hsc_out $ifile_root.s";
1803 &run_something($to_do, 'Saving copy of .s file');
1806 # if we're going to split up object files,
1807 # we inject split markers into the .hc file now
1808 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
1809 &inject_split_markers ( $hsc_out );
1818 local($ifile_root, $hsc_out, $hsc_hi, $going_interactive) = @_;
1820 # prepend comma to HsP flags (so hsc can tell them apart...)
1821 foreach $a ( @HsP_flags ) { $a = ",$a" unless $a =~ /^,/; }
1823 &makeHiMap() unless $HiMapDone;
1824 # print STDERR "HiIncludes: $HiIncludeString\n";
1825 push(@HsC_flags, "-himap=$HiIncludeString");
1826 # push(@HsC_flags, "-himap=$HiMapFile");
1828 # here, we may produce .hc/.s and/or .hi files
1829 local($output) = '';
1830 @Files_to_tidy = ();
1832 if ( $going_interactive ) {
1833 # don't need .hi unless going to show it on stdout:
1834 $ProduceHi = '-nohifile=' if ! $HiOnStdout;
1835 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
1838 # set up for producing output/.hi; note that flag twiddling
1839 # may mean that nothing will actually be produced:
1840 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out";
1841 @Files_to_tidy = ( $hsc_hi, $hsc_out );
1843 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
1844 if ( $CollectingGCstats ) {
1845 push(@HsC_rts_flags, "-S$ifile_root.stat");
1846 push(@Files_to_tidy, "$ifile_root.stat");
1849 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
1850 # emit nofibbish time/bytes-alloc stats to stderr;
1851 # see later .stat file post-processing
1852 push(@HsC_rts_flags, "-s$Tmp_prefix.stat");
1853 push(@Files_to_tidy, "$Tmp_prefix.stat");
1857 if ($Specific_dump_file ne '') {
1858 $dump = "2>> $Specific_dump_file";
1859 $Using_dump_file = 1;
1863 $to_do = "$HsC @HsP_flags ,$hscpp_hsc $dump @HsC_flags $CoreLint $Verbose $output +RTS @HsC_rts_flags";
1864 &run_something($to_do, 'Haskell compiler');
1866 # finish business w/ nofibbish time/bytes-alloc stats
1867 &process_ghc_timings() if $CollectGhcTimings;
1871 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
1872 of (module-name, pathname) pairs, one per line, separated by a space.
1877 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1881 # collect in %HiMap; write later; also used elsewhere in driver
1883 local($mod, $path, $d, $e);
1885 # reset the global variables:
1889 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1891 foreach $d ( @Import_dir ) {
1892 if ($HiIncludeString) { $HiIncludeString = "$HiIncludeString:$d";
1893 } else { $HiIncludeString = $d; }
1895 opendir(DIR, $d) || &tidy_up_and_die(1,"$Pgm: error when reading directory: $d\n");
1896 local(@entry) = readdir(DIR);
1897 foreach $e ( @entry ) {
1898 next unless $e =~ /\b([A-Z][A-Za-z0-9_]*)\.$HiSuffix$/o;
1903 if ( ! defined($HiMap{$mod}) ) {
1904 $HiMap{$mod} = $path;
1906 &already_mapped_err($mod, $HiMap{$mod}, $path);
1909 closedir(DIR); # || &tidy_up_and_die(1,"$Pgm: error when closing directory: $d\n");
1912 foreach $d ( @SysImport_dir ) {
1913 if ($HiIncludeString) { $HiIncludeString = "$HiIncludeString:$d";
1914 } else { $HiIncludeString = $d; }
1916 opendir(DIR, $d) || &tidy_up_and_die(1,"$Pgm: error when reading directory: $d\n");
1917 local(@entry) = readdir(DIR);
1918 foreach $e ( @entry ) {
1919 next unless $e =~ /([A-Z][A-Za-z0-9_]*)\.$HiSuffix$/o;
1920 next if $NoImplicitPrelude && $e =~ /Prelude\.$HiSuffix$/o;
1926 if ( ! defined($HiMap{$mod}) ) {
1927 $HiMap{$mod} = $path;
1928 } elsif ( $mod ne 'Main' ) { # saves useless warnings...
1929 &already_mapped_err($mod, $HiMap{$mod}, $path);
1932 closedir(DIR); # || &tidy_up_and_die(1,"$Pgm: error when closing directory: $d\n");
1935 $HiMapFile = "$Tmp_prefix.himap";
1937 open(HIMAP, "> $HiMapFile") || &tidy_up_and_die(1,"$Pgm: can't open $HiMapFile\n");
1938 foreach $d (keys %HiMap) {
1939 print HIMAP $d, ' ', $HiMap{$d}, "\n";
1941 close(HIMAP) || &tidy_up_and_die(1,"$Pgm: error when closing $HiMapFile\n");
1946 sub already_mapped_err {
1947 local($mod, $mapped_to, $path) = @_;
1949 # OK, it isn't really an error if $mapped_to and $path turn
1950 # out to be the same thing.
1951 ($m_dev,$m_ino,$m_mode,$m_nlink,$m_uid,$m_gid,$m_rdev,$m_size,
1952 $m_atime,$m_mtime,$m_ctime,$m_blksize,$m_blocks) = stat($mapped_to);
1953 ($p_dev,$p_ino,$p_mode,$p_nlink,$p_uid,$p_gid,$p_rdev,$p_size,
1954 $p_atime,$p_mtime,$p_ctime,$p_blksize,$p_blocks) = stat($path);
1956 return if $m_ino == $p_ino; # same inode number
1958 print STDERR "$Pgm: module $mod already mapped to $mapped_to";
1959 print STDERR ";\n\tignoring: $path\n";
1963 %************************************************************************
1965 \section[Driver-misc-utils]{Miscellaneous utilities}
1967 %************************************************************************
1969 %************************************************************************
1971 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
1973 %************************************************************************
1977 local($ofile,$def_suffix) = @_;
1979 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
1983 local($orig_file, $def_suffix) = @_;
1984 if ($Specific_output_dir eq '') { # do nothing
1985 &osuf_ify($orig_file, $def_suffix);
1987 local ($orig_file_only);
1988 ($orig_file_only = $orig_file) =~ s|.*/||;
1989 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
1996 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
1998 local($includes) = '-I' . join(' -I', @Include_dir);
2001 local($c_flags) = "@CcBoth_flags";
2002 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2004 # "input" files to use that are not in some weird directory;
2005 # to help C compilers grok .hc files [ToDo: de-hackify]
2006 local($cc_help) = "ghc$$.c";
2007 local($cc_help_s) = "ghc$$.s";
2010 $s_output = ($is_hc_file || $TargetPlatform =~ /^(hppa|i386)/) ? $cc_as_o : $cc_as;
2011 $c_flags .= " @CcRegd_flags";
2012 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2014 # C compiler won't like the .hc extension. So we create
2015 # a tmp .c file which #include's the needful.
2016 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2017 if ( $is_hc_file ) {
2019 #ifdef __STG_GCC_REGS__
2020 # if ! (defined(MAIN_REG_MAP) || defined(MARK_REG_MAP) || defined(SCAN_REG_MAP) || defined(SCAV_REG_MAP) || defined(FLUSH_REG_MAP))
2021 # define MAIN_REG_MAP
2024 #include "stgdefs.h"
2026 # user may have asked for #includes to be injected...
2027 print TMP @CcInjects if $#CcInjects >= 0;
2029 # heave in the consistency info
2030 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2032 # and #include the real source
2033 print TMP "#include \"$hsc_out\"\n";
2034 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2036 local($to_do) = "$cc $Verbose $ddebug_flag $c_flags @Cpp_define -D__HASKELL1__=$Haskell1Version $includes $cc_help > $Tmp_prefix.ccout 2>&1 && ( if [ $cc_help_s != $s_output ] ; then mv $cc_help_s $s_output ; else exit 0 ; fi )";
2037 # note: __GLASGOW_HASKELL__ is pointedly *not* #defined at the C level.
2038 if ( $Only_preprocess_C ) { # HACK ALERT!
2039 $to_do =~ s/ -S\b//g;
2041 @Files_to_tidy = ( $cc_help, $cc_help_s, $s_output );
2042 $PostprocessCcOutput = 1; # hack, dear hack...
2043 &run_something($to_do, 'C compiler');
2044 $PostprocessCcOutput = 0;
2045 unlink($cc_help, $cc_help_s);
2051 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2053 if ( $is_hc_file ) {
2054 # dynamically load assembler-fiddling code, which we are about to use:
2055 require('ghc-asm.prl')
2056 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2059 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2062 # post-process the assembler [.hc files only]
2063 &mangle_asm($cc_as_o, $cc_as);
2066 #OLD: local($target) = 'oops';
2067 #OLD: $target = '-alpha' if $TargetPlatform =~ /^alpha-/;
2068 #OLD: $target = '-hppa' if $TargetPlatform =~ /^hppa/;
2069 #OLD: $target = '-old-asm' if $TargetPlatform =~ /^i386-/;
2070 #OLD: $target = '-m68k' if $TargetPlatform =~ /^m68k-/;
2071 #OLD: $target = '-mips' if $TargetPlatform =~ /^mips-/;
2072 #OLD: $target = '' if $TargetPlatform =~ /^powerpc-/;
2073 #OLD: $target = '-solaris' if $TargetPlatform =~ /^sparc-sun-solaris2/;
2074 #OLD: $target = '-sparc' if $TargetPlatform =~ /^sparc-sun-sunos4/;
2076 #OLD: if ( $target ne '' ) {
2077 #OLD: require("ghc-asm$target.prl")
2078 #OLD: || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm$target.prl!\n");
2079 #OLD: &mangle_asm($cc_as_o, "$cc_as-2"); # the OLD one!
2080 #OLD: &run_something("$Cmp -s $cc_as-2 $cc_as || $Diff $cc_as-2 $cc_as 1>&2 || exit 0",
2081 #OLD: "Diff'ing old and new mangled .s files"); # NB: to stderr
2084 } elsif ($TargetPlatform =~ /^hppa/) {
2085 # minor mangling of non-threaded files for hp-pa only
2086 require('ghc-asm.prl')
2087 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2088 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2090 } elsif ($TargetPlatform =~ /^i386/) {
2091 # extremely-minor OFFENSIVE mangling of non-threaded just one file
2092 require('ghc-asm.prl')
2093 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2094 &mini_mangle_asm_i386($cc_as_o, $cc_as);
2097 # save a copy of the .s file, even if we are carrying on...
2098 if ($do_as && $Keep_s_file_too) {
2099 local($to_do) = "$Rm $ifile_root.s; $Cp $cc_as $ifile_root.s";
2100 &run_something($to_do, 'Saving copy of .s file');
2107 local($as_out, $ifile_root) = @_;
2109 local($asmblr) = ( $As ) ? $As : $CcRegd;
2111 if ( ! $SplitObjFiles ) {
2112 local($to_do) = "$asmblr -o $as_out -c @As_flags $cc_as";
2113 @Files_to_tidy = ( $as_out );
2114 &run_something($to_do, 'Unix assembler');
2116 } else { # more complicated split-ification...
2118 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2120 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2121 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2122 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2123 @Files_to_tidy = ( $split_out );
2125 &run_something($to_do, 'Unix assembler');
2131 %************************************************************************
2133 \subsection[Driver-run-something]{@run_something@: Run a phase}
2135 %************************************************************************
2139 local($str_to_do, $tidy_name) = @_;
2141 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2142 print STDERR "$str_to_do\n" if $Verbose;
2144 if ($Using_dump_file) {
2145 open(DUMP, ">> $Specific_dump_file")
2146 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2147 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2149 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2152 local($return_val) = 0;
2153 system("$Time $str_to_do");
2156 if ( $PostprocessCcOutput ) { # hack, continued
2157 open(CCOUT, "< $Tmp_prefix.ccout")
2158 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2160 next if /attribute directive ignored/;
2161 next if /call-clobbered/;
2162 next if /from .*COptRegs\.lh/;
2163 next if /from .*(stg|rts)defs\.h:/;
2164 next if /from ghc\d+.c:\d+:/;
2165 next if /from .*\.lc/;
2166 next if /from .*SMinternal\.l?h/;
2167 next if /ANSI C does not support \`long long\'/;
2168 next if /warning:.*was declared \`extern\' and later \`static\'/;
2169 next if /warning: assignment discards \`const\' from pointer target type/;
2170 next if /: At top level:$/;
2171 next if /: In function \`.*\':$/;
2172 next if /\`ghc_cc_ID\' defined but not used/;
2175 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2178 if ($return_val != 0) {
2179 if ($Using_dump_file) {
2180 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2183 &tidy_up_and_die($return_val, '');
2185 $Using_dump_file = 0;
2189 %************************************************************************
2191 \subsection[Driver-ghctiming]{Emit nofibbish GHC timings}
2193 %************************************************************************
2195 NB: nearly the same as in @runstdtest@ script.
2198 sub process_ghc_timings {
2199 local($StatsFile) = "$Tmp_prefix.stat";
2200 local($SysSpecificTiming) = 'ghc';
2202 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2203 local($tot_live) = 0; # for calculating avg residency
2206 $tot_live += $1 if /^\s*\d+\s+\d+\s+\d+\.\d+\%\s+(\d+)\s+\d+\.\d+\%/;
2208 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2210 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2211 $MaxResidency = $1; $ResidencySamples = $2;
2214 $GCs = $1 if /^\s*([0-9,]+) garbage collections? performed/;
2216 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2217 $InitTime = $1; $InitElapsed = $2;
2218 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2219 $MutTime = $1; $MutElapsed = $2;
2220 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2221 $GcTime = $1; $GcElapsed = $2;
2224 close(STATS) || die "Failed when closing $StatsFile\n";
2225 if ( defined($ResidencySamples) && $ResidencySamples > 0 ) {
2226 $AvgResidency = int ($tot_live / $ResidencySamples) ;
2229 # warn about what we didn't find
2230 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2231 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2232 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2233 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2234 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2235 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2236 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2237 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2239 # things we didn't necessarily expect to find
2240 $MaxResidency = 0 unless defined($MaxResidency);
2241 $AvgResidency = 0 unless defined($AvgResidency);
2242 $ResidencySamples = 0 unless defined($ResidencySamples);
2245 $BytesAlloc =~ s/,//g;
2246 $MaxResidency =~ s/,//g;
2248 $InitTime =~ s/,//g;
2249 $InitElapsed =~ s/,//g;
2251 $MutElapsed =~ s/,//g;
2253 $GcElapsed =~ s/,//g;
2255 # print out what we found
2256 print STDERR "<<$SysSpecificTiming: ",
2257 "$BytesAlloc bytes, $GCs GCs, $AvgResidency/$MaxResidency avg/max bytes residency ($ResidencySamples samples), $InitTime INIT ($InitElapsed elapsed), $MutTime MUT ($MutElapsed elapsed), $GcTime GC ($GcElapsed elapsed)",
2258 " :$SysSpecificTiming>>\n";
2265 %************************************************************************
2267 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2269 %************************************************************************
2273 local($to_do) = "\n$Rm $Tmp_prefix*";
2274 if ( $Tmp_prefix !~ /^\s*$/ ) {
2275 print STDERR "$to_do\n" if $Verbose;
2280 sub tidy_up_and_die {
2281 local($return_val, $msg) = @_;
2283 # delete any files to tidy
2284 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2285 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2289 exit (($return_val == 0) ? 0 : 1);
2293 %************************************************************************
2295 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2297 %************************************************************************
2299 Some command-line arguments take an argument, e.g.,
2300 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2301 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2302 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2304 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2305 gobble the second argument (and probably set the heapsize to something
2309 local(*Args, $option, $rest_of_arg) = @_;
2312 return($rest_of_arg);
2313 } elsif ($#Args >= 0) {
2314 local($temp) = $Args[0]; shift(@Args);
2317 print STDERR "$Pgm: no argument following $option option\n";
2328 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2330 foreach $f ( @HsC_antiflags ) {
2331 return(0) if $flag eq $f;
2333 # foreach $f ( @HsC_flags ) {
2334 # return(0) if $flag eq $f;
2339 sub squashHscFlag { # pretty terrible
2343 foreach $f ( @HsC_flags ) {
2344 if ($flag eq $f) { $f = ''; }
2352 foreach $f ( @flags ) {
2353 push( @HsC_flags, $f ) if &isntAntiFlag($f);
2358 Source files may have {-# OPTIONS ... #-} pragmas at the top, containing
2359 command line options we want to append to collection of commands specified
2360 directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell
2361 file for any such pragmas:
2365 sub check_for_source_options {
2366 local($file, *FileArgs) = @_;
2368 open(FILE,$file) || return(1);
2371 if ( /^{-# OPTIONS (.*)#-}/ ) {
2372 # add the options found at the back of the command line.
2373 push(@FileArgs, split(/\s+/, $1));
2375 elsif ( /^$/ ) { # ignore empty lines
2388 split up argv into three arrays:
2393 the reason for doing so is to be able to deal
2394 with {-# OPTIONS #-} pragma in source files properly.
2400 arg: while($_ = $args[0]) {
2402 # sigh, we have to deal with the -option arg specially.
2403 /^-(tmpdir|odir|o|isuf|osuf|hisuf|odump|syslib)$/ &&
2404 do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; };
2405 /^-./ && do { push(@Cmd_opts, $_); next arg; };
2408 push(@Link_file, $_);
2410 push(@Input_file, $_);
2413 # input files must exist:
2415 print STDERR "$Pgm: input file doesn't exist: $_\n";
2428 # can't use getopt(s); what we want is too complicated
2430 arg: while($_ = $Args[0]) {
2433 #---------- help -------------------------------------------------------
2434 if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; }
2436 #-----------version ----------------------------------------------------
2437 /^--version$/ && do { print STDERR "$(PROJECTNAME), version $(PROJECTVERSION) $(PROJECTPATCHLEVEL)\n"; exit $Status; };
2439 #---------- verbosity and such -----------------------------------------
2440 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
2442 #---------- what phases are to be run ----------------------------------
2443 /^-recomp/ && do { $Do_recomp_chkr = 1; next arg; };
2445 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
2446 # change the global default:
2447 # we won't run cat; we'll run the real thing
2449 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
2451 # stop after generating C
2453 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
2454 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
2456 # leave out actual C generation (debugging) [also turns off interface gen]
2458 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
2459 # _do_ generate an interface; usually used as: -noC -hi
2461 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
2462 # don't generate an interface (even if generating C)
2464 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
2465 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
2466 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
2467 # show/disable diffs if the interface file changes
2469 /^-E$/ && do { push(@CcBoth_flags, '-E');
2470 $Only_preprocess_C = 1;
2471 $Do_as = 0; $Do_lnkr = 0; next arg; };
2472 # stop after preprocessing C
2473 /^-M$/ && do { $Only_generate_deps = 1;
2474 $Do_as = 0; $Do_lnkr = 0; next arg; };
2476 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
2477 # stop after generating assembler
2479 /^-c$/ && do { $Do_lnkr = 0; next arg; };
2480 # stop after generating .o files
2482 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
2483 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
2484 # don't do consistency-checking after a link
2486 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', '');
2487 $Tmp_prefix = "$Tmp_prefix/ghc$$";
2488 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
2490 # use an alternate directory for temp files
2492 #---------- redirect output --------------------------------------------
2494 # -o <file>; applies to the last phase, whatever it is
2495 # "-o -" sends it to stdout
2496 # if <file> has a directory component, that dir must already exist
2498 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', '');
2499 if (! -d $Specific_output_dir) {
2500 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
2505 /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', '');
2506 if ($Specific_output_file ne '-'
2507 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
2508 local($dir_part) = $1;
2509 if (! -d $dir_part) {
2510 print STDERR "$Pgm: no such directory: $dir_part\n";
2516 # NB: -isuf not documented yet (because it doesn't work yet)
2517 /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', '');
2518 if ($Isuffix =~ /\./ ) {
2519 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
2524 /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', '');
2525 if ($Osuffix =~ /\./ ) {
2526 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
2531 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
2532 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', '');
2533 if ($Specific_hi_file ne '-'
2534 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
2535 local($dir_part) = $1;
2536 if (! -d $dir_part) {
2537 print STDERR "$Pgm: no such directory: $dir_part\n";
2543 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', '');
2544 if ($HiSuffix =~ /\./ ) {
2545 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
2549 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', '');
2550 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
2551 local($dir_part) = $1;
2552 if (! -d $dir_part) {
2553 print STDERR "$Pgm: no such directory: $dir_part\n";
2559 #-------------- scc & Profiling Stuff ----------------------------------
2561 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
2564 # generate auto SCCs on top level bindings
2565 # -auto-all = all top level bindings
2566 # -auto = only top level exported bindings
2567 $PROFauto = ( /-all/ )
2568 ? '-fauto-sccs-on-all-toplevs'
2569 : '-fauto-sccs-on-exported-toplevs';
2572 /^-caf-all/ && do { # generate individual CAF SCC annotations
2573 $PROFcaf = '-fauto-sccs-on-individual-cafs';
2576 /^-ignore-scc$/ && do {
2577 # forces ignore of scc annotations even if profiling
2578 $PROFignore_scc = '-W';
2581 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
2584 /^-unprof-scc-auto/ && do {
2585 # generate auto SCCs on top level bindings when not profiling
2586 # used to measure optimisation effects of presence of sccs
2587 $UNPROFscc_auto = ( /-all/ )
2588 ? '-fauto-sccs-on-all-toplevs'
2589 : '-fauto-sccs-on-exported-toplevs';
2592 #--------- ticky/concurrent/parallel -----------------------------------
2593 # we sort out the details a bit later on
2595 /^-concurrent$/ && do { $CONCURing = 'c'; next arg; }; # concurrent Haskell
2596 /^-gransim$/ && do { $GRANing = 'g'; next arg; }; # GranSim
2597 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
2598 /^-parallel$/ && do { $PARing = 'p'; next arg; } ; # parallel Haskell
2600 #-------------- "user ways" --------------------------------------------
2602 (/^-user-setup-([a-oA-Z])$/
2603 || /^$(GHC_BUILD_FLAG_a)$/
2604 || /^$(GHC_BUILD_FLAG_b)$/
2605 || /^$(GHC_BUILD_FLAG_c)$/
2606 || /^$(GHC_BUILD_FLAG_d)$/
2607 || /^$(GHC_BUILD_FLAG_e)$/
2608 || /^$(GHC_BUILD_FLAG_f)$/
2609 || /^$(GHC_BUILD_FLAG_g)$/
2610 || /^$(GHC_BUILD_FLAG_h)$/
2611 || /^$(GHC_BUILD_FLAG_i)$/
2612 || /^$(GHC_BUILD_FLAG_j)$/
2613 || /^$(GHC_BUILD_FLAG_k)$/
2614 || /^$(GHC_BUILD_FLAG_l)$/
2615 || /^$(GHC_BUILD_FLAG_m)$/
2616 || /^$(GHC_BUILD_FLAG_n)$/
2617 || /^$(GHC_BUILD_FLAG_o)$/
2618 || /^$(GHC_BUILD_FLAG_A)$/
2619 || /^$(GHC_BUILD_FLAG_B)$/
2621 || /^$(GHC_BUILD_FLAG_2s)$/ # GC ones...
2622 || /^$(GHC_BUILD_FLAG_1s)$/
2623 || /^$(GHC_BUILD_FLAG_du)$/
2625 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
2627 /^$(GHC_BUILD_FLAG_a)$/ && do { $BuildTag = '_a'; };
2628 /^$(GHC_BUILD_FLAG_b)$/ && do { $BuildTag = '_b'; };
2629 /^$(GHC_BUILD_FLAG_c)$/ && do { $BuildTag = '_c'; };
2630 /^$(GHC_BUILD_FLAG_d)$/ && do { $BuildTag = '_d'; };
2631 /^$(GHC_BUILD_FLAG_e)$/ && do { $BuildTag = '_e'; };
2632 /^$(GHC_BUILD_FLAG_f)$/ && do { $BuildTag = '_f'; };
2633 /^$(GHC_BUILD_FLAG_g)$/ && do { $BuildTag = '_g'; };
2634 /^$(GHC_BUILD_FLAG_h)$/ && do { $BuildTag = '_h'; };
2635 /^$(GHC_BUILD_FLAG_i)$/ && do { $BuildTag = '_i'; };
2636 /^$(GHC_BUILD_FLAG_j)$/ && do { $BuildTag = '_j'; };
2637 /^$(GHC_BUILD_FLAG_k)$/ && do { $BuildTag = '_k'; };
2638 /^$(GHC_BUILD_FLAG_l)$/ && do { $BuildTag = '_l'; };
2639 /^$(GHC_BUILD_FLAG_m)$/ && do { $BuildTag = '_m'; };
2640 /^$(GHC_BUILD_FLAG_n)$/ && do { $BuildTag = '_n'; };
2641 /^$(GHC_BUILD_FLAG_o)$/ && do { $BuildTag = '_o'; };
2642 /^$(GHC_BUILD_FLAG_A)$/ && do { $BuildTag = '_A'; };
2643 /^$(GHC_BUILD_FLAG_B)$/ && do { $BuildTag = '_B'; };
2645 /^$(GHC_BUILD_FLAG_2s)$/ && do { $BuildTag = '_2s'; };
2646 /^$(GHC_BUILD_FLAG_1s)$/ && do { $BuildTag = '_1s'; };
2647 /^$(GHC_BUILD_FLAG_du)$/ && do { $BuildTag = '_du'; };
2649 local($stuff) = $UserSetupOpts{$BuildTag};
2650 local(@opts) = split(/\s+/, $stuff);
2652 # feed relevant ops into the arg-processing loop (if any)
2653 unshift(@Args, @opts) if $#opts >= 0;
2657 #---------- set search paths for libraries and things ------------------
2659 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
2660 # prepends the items to the list); -I is for including C .h files.
2662 /^-i$/ && do { @Import_dir = (); # import path cleared!
2663 @SysImport_dir = ();
2664 print STDERR "WARNING: import paths cleared by `-i'\n";
2667 /^-i(.*)/ && do { local(@new_items)
2668 = split( /:/, &grab_arg_arg(*Args,'-i', $1));
2669 unshift(@Import_dir, @new_items);
2672 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; };
2673 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; };
2674 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; };
2676 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1);
2677 print STDERR "$Pgm: no such system library (-syslib): $syslib\n",
2678 $Status++ unless $syslib =~ /^(hbc|ghc|posix|contrib)$/;
2680 unshift(@SysImport_dir,
2682 ? "$InstSysLibDir/$syslib/imports"
2683 : "$TopPwd/hslibs/$syslib/src");
2685 if ( $(INSTALLING) ) {
2686 push(@SysLibrary_dir,
2687 ("$InstSysLibDir/$TargetPlatform"));
2689 push(@SysLibrary_dir,
2690 ("$TopPwd/hslibs/$syslib"
2691 ,"$TopPwd/hslibs/$syslib/cbits"));
2694 push(@SysLibrary, "-lHS$syslib");
2695 push(@SysLibrary, "-lHS${syslib}_cbits")
2696 unless $syslib eq 'contrib'; #HACK! it has no cbits
2700 #=======================================================================
2701 # various flags that we can harmlessly send to one program or another
2702 # (we will later "reclaim" some of the compiler ones now sent to gcc)
2703 #=======================================================================
2705 #---------- this driver itself (ghc) -----------------------------------
2706 # these change what executable is run for each phase:
2707 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
2708 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
2709 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
2710 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
2711 /^-pgma(.*)$/ && do { $As = $1; next arg; };
2712 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
2713 /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; };
2715 #---------- the get-anything-through opts (all pgms) -------------------
2716 # these allow arbitrary option-strings to go to any phase:
2717 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
2718 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
2719 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
2720 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
2721 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
2722 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
2723 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
2724 /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; };
2726 #---------- Haskell C pre-processor (hscpp) ----------------------------
2727 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; };
2728 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; };
2730 /^-genSPECS/ && do { $Cpp_flag_set = 1;
2731 $genSPECS_flag = $_;
2734 #---------- post-Haskell "assembler"------------------------------------
2735 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
2736 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
2738 #---------- Haskell compiler (hsc) -------------------------------------
2740 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
2741 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
2743 /^-fhaskell-1\.3$/ && do { next arg; }; # a no-op right now
2745 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
2747 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
2748 /^-user-prelude-force/ && do { # ignore if not -user-prelude
2751 /^-split-objs/ && do {
2752 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|sparc)-/ ) {
2754 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
2759 push(@HsC_flags, "-fglobalise-toplev-names");
2760 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
2762 require('ghc-split.prl')
2763 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
2768 && do { push(@HsC_flags, $_);
2769 push(@HsP_flags, '-N');
2771 # push(@HsC_flags, '-fshow-import-specs');
2775 /^-fspeciali[sz]e-unboxed$/
2776 && do { $Oopt_DoSpecialise = '-fspecialise';
2777 $Oopt_SpecialiseUnboxed = '-fspecialise-unboxed';
2780 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
2781 /^-fno-speciali[sz]e$/
2782 && do { $Oopt_DoSpecialise = ''; next arg; };
2785 # Now the foldr/build options, which are *on* by default (for -O).
2788 && do { $Oopt_FoldrBuild = 1;
2789 $Oopt_FB_Support = '-fdo-arity-expand';
2793 /^-fno-foldr-build$/
2794 && do { $Oopt_FoldrBuild = 0;
2795 $Oopt_FB_Support = '';
2798 /^-fno-foldr-build-rule$/
2799 && do { $Oopt_FoldrBuild = 0;
2802 /^-fno-enable-tech$/
2803 && do { $Oopt_FB_Support = '';
2806 /^-fno-snapback-to-append$/
2807 && do { $Oopt_FoldrBuildInline .= ' -fdo-not-fold-back-append ';
2812 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
2813 /^-fvia-C$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
2817 /^(-funfolding-use-threshold)(.*)$/
2818 && do { $Oopt_UnfoldingUseThreshold = $1 . &grab_arg_arg(*Args,$1, $2);
2821 /^(-fmax-simplifier-iterations)(.*)$/
2822 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2);
2825 /^-fno-pedantic-bottoms$/
2826 && do { $Oopt_PedanticBottoms = ''; next arg; };
2828 /^-fdo-monad-eta-expansion$/
2829 && do { $Oopt_MonadEtaExpansion = $_; next arg; };
2831 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
2832 && do { push(@HsC_flags, $_); next arg; };
2834 /^(-freturn-in-regs-threshold)(.*)$/
2835 && do { local($what) = $1;
2836 local($num) = &grab_arg_arg(*Args,$what, $2);
2837 if ($num < 2 || $num > 8) {
2838 die "Bad experimental flag: $_\n";
2840 $HscOut = '-C='; # force using C compiler
2841 push(@HsC_flags, "$what$num");
2842 push(@CcRegd_flags, "-D__STG_REGS_AVAIL__=$num");
2848 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
2849 &squashHscFlag("-f$1");
2852 /^-f(show-import-specs)/
2853 && do { push(@HsC_flags, $_); next arg; };
2855 # --------------- platform specific flags (for gcc mostly) ----------------
2857 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes
2858 unshift(@CcBoth_flags, ( $_ ));
2861 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
2862 && do { # for GCC for SPARCs
2863 unshift(@CcBoth_flags, ( $_ ));
2866 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
2867 $StolenX86Regs = $1;
2870 #*************** ... and lots of debugging ones (form: -d* )
2872 # -d(no-)core-lint is done this way so it is turn-off-able.
2873 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
2874 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
2876 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
2877 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
2878 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
2879 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
2880 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
2881 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
2882 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
2884 #*************** ... and now all these -R* ones for its runtime system...
2886 /^-Rscale-sizes?(.*)/ && do {
2887 $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1);
2890 /^(-H|-Rmax-heapsize)(.*)/ && do {
2891 local($heap_size) = &grab_arg_arg(*Args,$1, $2);
2892 if ($heap_size =~ /(\d+)[Kk]$/) {
2893 $heap_size = $1 * 1000;
2894 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
2895 $heap_size = $1 * 1000 * 1000;
2896 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
2897 $heap_size = $1 * 1000 * 1000 * 1000;
2899 if ($heap_size <= 0) {
2900 print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n";
2901 $Specific_heap_size = 0;
2903 # if several heap sizes given, take the largest...
2904 } elsif ($heap_size >= $Specific_heap_size) {
2905 $Specific_heap_size = $heap_size;
2907 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n";
2911 /^-(K|Rmax-(stk|stack)size)(.*)/ && do {
2912 local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3);
2913 if ($stk_size =~ /(\d+)[Kk]$/) {
2914 $stk_size = $1 * 1000;
2915 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
2916 $stk_size = $1 * 1000 * 1000;
2917 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
2918 $stk_size = $1 * 1000 * 1000 * 1000;
2920 if ($stk_size <= 0) {
2921 print STDERR "$Pgm: resetting stack-size to zero!!!\n";
2922 $Specific_stk_size = 0;
2924 # if several stack sizes given, take the largest...
2925 } elsif ($stk_size >= $Specific_stk_size) {
2926 $Specific_stk_size = $stk_size;
2928 print STDERR "$Pgm: ignoring stack-size-setting option (-Rmax-stksize $stk_size)...not the largest seen\n";
2932 /^-Rgc-stats$/ && do { $CollectingGCstats++;
2933 # the two RTSs do this diff ways; we will try to compensate
2936 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
2938 #---------- C high-level assembler (gcc) -------------------------------
2939 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
2941 # -dgcc-lint is a useful way of making GCC very fussy.
2942 # From alan@spri.levels.unisa.edu.au (Alan Modra).
2943 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
2944 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
2945 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
2947 # inject "#include <wurble>" into the compiler's C output!
2949 /^-#include(.*)/ && do {
2950 local($to_include) = &grab_arg_arg(*Args,'-#include', $1);
2951 push(@CcInjects, "#include $to_include\n");
2954 #---------- Linker (gcc, really) ---------------------------------------
2956 /^-static$/ && do { push(@Ld_flags, $_); next arg; };
2958 #---------- mixed cc and linker magic ----------------------------------
2959 # this optimisation stuff is finally sorted out later on...
2961 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
2963 /^-O[1-2]?$/ && do {
2964 # print STDERR "$Pgm: NOTE: this version of GHC doesn't support -O or -O2\n";
2965 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
2966 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
2968 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
2971 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
2973 /^-Ofile(.*)/ && do {
2975 local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1);
2976 @HsC_minusO3_flags = ();
2978 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
2981 s/\#.*//; # death to comments
2982 s/[ \t]+//g; # death to whitespace
2983 next if /^$/; # ditto, blank lines
2984 s/([()*{}])/\\$1/g; # protect shell metacharacters
2986 push(@CcBoth_flags, $1);
2988 push(@HsC_minusO3_flags, $_);
2994 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
2995 # in the consistency info
2999 #---------- linking .a file --------------------------------------------
3001 /^-Main(.*)/ && do {
3002 # specifies main or mainPrimIO to be linked
3006 #---------- catch unrecognized flags -----------------------------------
3009 print STDERR "$Pgm: unrecognised option: $_\n";
3015 } # end of processArgs