2 % (c) The GRASP/AQUA Project, Glasgow University, 1992-1997
5 This is the driver script for the Glasgow Haskell compilation system.
6 It is written in \tr{perl}. The first section includes a long
7 ``usage'' message that describes how the driver is supposed to work.
9 %************************************************************************
11 \section[Driver-usage]{Usage message}
13 %************************************************************************
16 ($Pgm = $0) =~ s|.*/||;
17 $ShortUsage = "\nUsage: For basic information, try the `-help' option.\n";
18 $LongUsage = "\n" . <<EOUSAGE;
19 Use of the Glorious Haskell Compilation System driver:
21 $Pgm [command-line-options-and-input-files]
23 ------------------------------------------------------------------------
24 This driver ($Pgm) guides each input file through (some of the)
25 possible phases of a compilation:
27 - unlit: extract code from a "literate program"
28 - hscpp: run code through the C pre-processor (if -cpp flag given)
29 - hsc: run the Haskell compiler proper
30 - gcc: run the C compiler (if compiling via C)
31 - as: run the assembler
34 For each input file, the phase to START with is determined by the
36 - .lhs literate Haskell: unlit
37 - .hs illiterate Haskell: hsc
38 - .hc C from the Haskell compiler: gcc
39 - .c C not from the Haskell compiler: gcc
40 - .s assembly language: as
41 - other passed directly to the linker: ld
43 If no files are given on the command line, input is taken from
44 standard input, and processing is as for an .hs file. (All output is
45 to stdout or stderr, however).
47 The phase at which to STOP processing is determined by a command-line
49 -C stop after generating C (.hc output)
50 -E stop after generating preprocessed C (.i output)
51 -S stop after generating assembler (.s output)
52 -c stop after generating object files (.o output)
54 Other commonly-used options are:
56 -O An `optimising' package of compiler flags, for faster code
58 -prof Compile for cost-centre profiling
59 (add -auto for automagic cost-centres on top-level functions)
61 -fglasgow-exts Allow Glasgow extensions (unboxed types, etc.)
63 -H14m Increase compiler's heap size
65 -M Output the Makefile rules recording the
66 dependencies of a list of Haskell files.
67 (ghc driver just calls upon the help of a
68 compatible mkdependHS script to do the
71 The User's Guide has more information about GHC's *many* options.
73 Given the above, here are some TYPICAL invocations of $Pgm:
75 # compile a Haskell module to a .o file, optimising:
77 # link three .o files into an executable called "test":
78 % $Pgm -o test Foo.o Bar.o Baz.o
79 # compile a Haskell module to C (a .hc file), using a bigger heap:
80 % $Pgm -C -H16m Foo.hs
81 # compile Haskell-produced C (.hc) to assembly language:
83 ------------------------------------------------------------------------
87 %************************************************************************
89 \section[Driver-init]{Initialisation}
91 %************************************************************************
93 The driver script need to be told where to find these executables, so
94 in the course of building the driver `executable', make-variables holding
95 these are prepended to the de-litted version of this file. The variables are:
100 HOSTPLATFORM TARGETPLATFORM
102 PROJECTNAME PROJECTVERSION PROJECTPATCHLEVEL
106 bindir libdir datadir
110 GHC_LIB_DIR GHC_RUNTIME_DIR GHC_UTILS_DIR GHC_INCLUDE_DIR
112 GHC_OPT_HILEV_ASM GhcWithNativeCodeGen
114 GHC_UNLIT GHC_HSCPP GHC_HSC GHC_SYSMAN
118 WAY_*_NAME WAY_*_HC_OPTS
124 Establish what executables to run for the various phases, what the
125 default options are for those phases, and other similar boring stuff.
128 select(STDERR); $| = 1; select(STDOUT); # no STDERR buffering, please.
130 $TargetPlatform = $TARGETPLATFORM;
132 $TopPwd = "${TOP_PWD}";
133 $InstBinDirGhc = "${bindir}";
134 $InstLibDirGhc = "${libdir}";
135 $InstLibexecDirGhc = "${libexecdir}";
136 $InstDataDirGhc = "${datadir}";
137 $InstSysLibDir = ( $INSTALLING ) ? "${InstLibDirGhc}/hslibs" :
140 $Status = 0; # just used for exit() status
143 # set up signal handler
144 sub quit_upon_signal { &tidy_up_and_die(1, ''); }
145 $SIG{'INT'} = 'quit_upon_signal';
146 $SIG{'QUIT'} = 'quit_upon_signal';
148 # where to get "require"d .prl files at runtime (poor man's dynamic loading)
149 # (use LIB, not DATA, because we can't be sure of arch-independence)
150 @INC = ( ( $INSTALLING ) ? $InstLibDirGhc
151 : "$TopPwd/${CURRENT_DIR}" );
153 if ( $ENV{'TMPDIR'} ) { # where to make tmp file names
154 $Tmp_prefix = ($ENV{'TMPDIR'} . "/ghc$$");
156 print STDERR "TMPDIR has not been set to anything useful!\n" if (${TMPDIR} eq '');
157 $Tmp_prefix ="${TMPDIR}/ghc$$"; # TMPDIR set via Makefile when booting..
158 $ENV{'TMPDIR'} = ${TMPDIR}; # set the env var as well
161 # Some shells run into real trouble when command line and environment
162 # gets big (e.g., cmd lines of >4K to /bin/sh causes havoc on our
163 # Solaris-2.5.1 boxes - even though sysconf(_SC_ARG_MAX) reports 1M ...).
164 # To work around any such */bin/sh* problems, we will scribble such
165 # awfully long command lines into a temp file and exec that temp file
166 # with $(REAL_SHELL) (don't use the SHELL variable directly as this
167 # will normally get you the wrong thing when the driver is invoked
168 # from within `make'). If the REAL_SHELL variable isn't set, you'll
169 # get SHELL. This is all a terrible hack. (in case you hadn't reached
170 # the same conclusion by now :-)
174 if ( ! $ENV{'REAL_SHELL'} ) {
175 $ENV{'REAL_SHELL'} = $ENV{'SHELL'};
178 @Files_to_tidy = (); # files we nuke in the case of abnormal termination
180 $Unlit = ( $INSTALLING ) ? "$InstLibexecDirGhc/unlit"
181 : "$TopPwd/${CURRENT_DIR}/${GHC_UNLIT}";
185 $Diff = $CONTEXT_DIFF;
190 $HsCpp = # but this is re-set to "cat" (after options) if -cpp not seen
191 ( $INSTALLING ) ? "$InstLibexecDirGhc/hscpp"
192 : "$TopPwd/${CURRENT_DIR}/${GHC_HSCPP}";
195 $genSPECS_flag = ''; # See ../utils/hscpp/hscpp.prl
196 $HsC = ( $INSTALLING ) ? "$InstLibexecDirGhc/hsc"
197 : "$TopPwd/${CURRENT_DIR}/${GHC_HSC}";
199 # For PVM fiends only
200 $SysMan = ( $INSTALLING ) ? "$InstLibexecDirGhc/SysMan"
201 : "$TopPwd/${CURRENT_DIR}/${GHC_SYSMAN}";
206 # HsC_rts_flags: if we want to talk to the LML runtime system
207 # NB: we don't use powers-of-2 sizes, because this may do
208 # terrible things to cache behavior.
210 $Specific_heap_size = 6 * 1000 * 1000;
211 $Specific_stk_size = 1000 * 1000;
212 $Scale_sizes_by = 1.0;
216 The variables set by @setupOptFlags@ represent parts of the
217 -O/-O2/etc ``templates,'' which are filled in later, using these.
218 These are the default values, which may be changed by user flags.
222 $Oopt_UnfoldingUseThreshold = '-fsimpl-uf-use-threshold3';
223 $Oopt_MaxSimplifierIterations = '-fmax-simplifier-iterations4';
224 $Oopt_PedanticBottoms = '-fpedantic-bottoms'; # ON by default
225 $Oopt_MonadEtaExpansion = '';
226 $Oopt_FinalStgProfilingMassage = '';
228 $Oopt_SpecialiseUnboxed = '';
229 $Oopt_DoSpecialise = ''; # ToDo:LATER: '-fspecialise';
230 $Oopt_FoldrBuild = 0; # *Off* by default!
231 $Oopt_FB_Support = ''; # was '-fdo-arity-expand';
232 # $Oopt_FoldrBuildWW = 0; # Off by default
233 $Oopt_FoldrBuildInline = ''; # was '-fdo-inline-foldr-build';
234 } # end of setupOptFlags
236 # Assign defaults to these right away.
240 Things to do with C compilers/etc:
242 $CcRegd = $GHC_OPT_HILEV_ASM;
243 @CcBoth_flags = ('-S'); # flags for *any* C compilation
247 # those for all files,
248 # those only for .c files;
249 # those only for .hc files
251 @CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__');
252 @CcRegd_flags_c = ();
253 @CcRegd_flags_hc = ();
255 $As = ''; # "assembler" is normally GCC
258 $Lnkr = ''; # "linker" is normally GCC
261 # 'nm' is used for consistency checking (ToDo: mk-world-ify)
262 # ToDo: check the OS or something ("alpha" is surely not the crucial question)
263 $Nm = ($TargetPlatform =~ /^alpha-/) ? 'nm -B' : 'nm';
266 What options \tr{-user-setup-a} turn into (user-defined ``packages''
267 of options). Note that a particular user-setup implies a particular
268 Prelude ({\em including} its interface file(s)).
270 $BuildTag = ''; # default is sequential build w/ Appel-style GC
272 %BuildDescr = (# system ways begin
273 '', 'normal sequential',
277 '_mc', "$WAY_mc_NAME",
278 '_mr', "$WAY_mr_NAME",
279 '_mt', "$WAY_mt_NAME",
280 '_mp', "$WAY_mp_NAME",
281 '_mg', "$WAY_mg_NAME",
282 '_2s', "$WAY_2s_NAME",
283 '_1s', "$WAY_1s_NAME",
284 '_du', "$WAY_du_NAME",
302 '_B', "$WAY_B_NAME" );
304 # these are options that are "fed back" through the option processing loop
308 '_a', "$WAY_a_HC_OPTS",
309 '_b', "$WAY_b_HC_OPTS",
310 '_c', "$WAY_c_HC_OPTS",
311 '_d', "$WAY_d_HC_OPTS",
312 '_e', "$WAY_e_HC_OPTS",
313 '_f', "$WAY_f_HC_OPTS",
314 '_g', "$WAY_g_HC_OPTS",
315 '_h', "$WAY_h_HC_OPTS",
316 '_i', "$WAY_i_HC_OPTS",
317 '_j', "$WAY_j_HC_OPTS",
318 '_k', "$WAY_k_HC_OPTS",
319 '_l', "$WAY_l_HC_OPTS",
320 '_m', "$WAY_m_HC_OPTS",
321 '_n', "$WAY_n_HC_OPTS",
322 '_o', "$WAY_o_HC_OPTS",
323 '_A', "$WAY_A_HC_OPTS",
324 '_B', "$WAY_B_HC_OPTS",
327 '_p', "$WAY_p_HC_OPTS",
328 '_t', "$WAY_t_HC_OPTS",
329 '_u', "$WAY_u_HC_OPTS",
330 '_mc', "$WAY_mc_HC_OPTS",
331 '_mr', "$WAY_mr_HC_OPTS",
332 '_mt', "$WAY_mt_HC_OPTS",
333 '_mp', "$WAY_mp_HC_OPTS",
334 '_mg', "$WAY_mg_HC_OPTS",
335 '_2s', "$WAY_2s_HC_OPTS",
336 '_1s', "$WAY_1s_HC_OPTS",
337 '_du', "$WAY_B_HC_OPTS" );
339 # per-build code fragments which are eval'd
340 #%EvaldSetupOpts = ('', '', # this one must *not* be set!
342 # # profiled sequential
343 # '_p', 'push(@HsC_flags, \'-fscc-profiling\');
344 # push(@CcBoth_flags, \'-DPROFILING\');',
347 # #push(@CcBoth_flags, '-DPROFILING_DETAIL_COUNTS');
349 # # ticky-ticky sequential
350 # '_t', 'push(@HsC_flags, \'-fticky-ticky\');
351 # push(@CcBoth_flags, \'-DTICKY_TICKY\');',
353 ##OLD: # unregisterized (ToDo????)
357 # '_mc', '$StkChkByPageFaultOK = 0;
358 # push(@HsC_flags, \'-fconcurrent\');
359 # push(@HsCpp_flags,\'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\');
360 # push(@Cpp_define, \'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\');',
362 # # profiled concurrent
363 # '_mr', '$StkChkByPageFaultOK = 0;
364 # push(@HsC_flags, \'-fconcurrent\', \'-fscc-profiling\');
365 # push(@HsCpp_flags,\'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\');
366 # push(@Cpp_define, \'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\', \'-DPROFILING\');',
368 # # ticky-ticky concurrent
369 # '_mt', '$StkChkByPageFaultOK = 0;
370 # push(@HsC_flags, \'-fconcurrent\', \'-fticky-ticky\');
371 # push(@HsCpp_flags,\'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\');
372 # push(@Cpp_define, \'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\', \'-DTICKY_TICKY\');',
375 # '_mp', '$StkChkByPageFaultOK = 0;
376 # push(@HsC_flags, \'-fconcurrent\');
377 # push(@HsCpp_flags,\'-D__PARALLEL_HASKELL__\', \'-DPAR\');
378 # push(@Cpp_define, \'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\', \'-DPAR\');',
381 # '_mg', '$StkChkByPageFaultOK = 0;
382 # push(@HsC_flags, \'-fconcurrent\', \'-fgransim\');
383 # push(@HsCpp_flags,\'-D__GRANSIM__\', \'-DGRAN\');
384 # push(@Cpp_define, \'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\', \'-DGRAN\');',
386 # '_2s', 'push (@CcBoth_flags, \'-DGC2s\');',
387 # '_1s', 'push (@CcBoth_flags, \'-DGC1s\');',
388 # '_du', 'push (@CcBoth_flags, \'-DGCdu\');',
390 # '_a', '', # these user-way guys should not be set!
410 Import/include directories (\tr{-I} options) are sufficiently weird to
411 require special handling.
414 @Import_dir = ('.'); #-i things
415 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
417 # where to look for interface files (system hi's, i.e., prelude and hslibs)
418 @SysImport_dir = ( $INSTALLING )
419 ? ( "$InstLibDirGhc/imports" )
420 : ( "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/required"
421 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/ghc"
422 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/glaExts"
423 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent" );
425 # We need to look in ghc/ and glaExts/ when searching for implicitly needed .hi files, but
426 # we should really *not* look there for explicitly imported modules.
428 $GhcVersionInfo = int ($PROJECTVERSION * 100);
429 $Haskell1Version = 4; # i.e., Haskell 1.4
432 @UserLibrary_dir= (); #-L things;...
433 @UserLibrary = (); #-l things asked for by the user
435 @SysLibrary_dir = ( ( $INSTALLING ) #-syslib things supplied by the system
437 : ( "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR"
438 , "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/gmp"
439 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR"
440 , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/cbits"
443 @SysLibrary = (); # will be built up as we go along
445 $TopClosureFile # defaults to 1.2 one; will be mangled later
446 = ( $INSTALLING) ? "$InstLibDirGhc/TopClosureXXXX.o"
447 : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/main/TopClosureXXXX.o";
449 # make depend for Haskell
451 = ( $INSTALLING ) ? "$InstBinDirGhc/mkdependHS"
452 : "$TopPwd/$CURRENT_DIR/$GHC_UTILS_DIR/mkdependHS/mkdependHS";
454 @MkDependHS_flags = ( );
456 # do_link flag should not be reset while rescanning the cmd-line.
458 $Specific_output_dir = ''; # set by -odir <dir>
459 $Specific_output_file = ''; # set by -o <file>; "-" for stdout
462 Function to initialise the per-compilation-unit globals that
463 are used to guide and control the invocation of the different phases.
466 sub initDriverGlobals {
468 # reset the following options:
469 # RTS flags to use while compiling
471 @HsP_flags = (); # these are the flags destined solely for
472 # the flex/yacc parser
477 The optimisations/etc to be done by the compiler are {\em normally}
478 expressed with a \tr{-O} (or \tr{-O2}) flag, or by its absence.
481 $OptLevel = 0; # no -O == 0; -O == 1; -O2 == 2; -Ofile == 3
482 $MinusO2ForC = 0; # set to 1 if -O2 should be given to C compiler
483 $StolenX86Regs = 4; # **HACK*** of the very worst sort
487 @CcBoth_flags = ('-S'); # flags for *any* C compilation
490 # GCC flags: those for all files, those only for .c files; those only for .hc files
491 @CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__');
492 @CcRegd_flags_c = ();
493 @CcRegd_flags_hc = ();
495 @Import_dir = ('.'); #-i things
496 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
501 We are given a list of files with various presumably-known suffixes
502 (unknown-suffix files go straight to the linker). For each file, we
503 begin by assuming that we'll run every phase over it. However: (1)
504 global flags (\tr{-c}, \tr{-S}, etc.) tell us not to run any phase
505 past a certain point; and (2) the file's suffix tells us what phase to
506 start with. Linking is weird and kept track of separately.
508 Here are the initial defaults applied to all files:
510 $Cpp_flag_set = 0; # (hack)
511 $Only_preprocess_C = 0; # pretty hackish
512 $Only_generate_deps = 0; #
513 $PostprocessCcOutput = 0;
515 # native code-gen or via C?
516 $HaveNativeCodeGen = $GhcWithNativeCodeGen;
517 $HscOut = '-C='; # '-C=' ==> .hc output; '-S=' ==> .s output; '-N=' ==> neither
519 if $HaveNativeCodeGen && $TargetPlatform =~ /^(alpha|sparc)-/;
520 # TEMP: disable x86 if $HaveNativeCodeGen && $TargetPlatform =~ /^(i386|alpha|sparc)-/;
521 $ProduceHi = '-hifile=';
525 $CollectingGCstats = 0;
526 $CollectGhcTimings = 0;
527 $DEBUGging = ''; # -DDEBUG and all that it entails (um... not really)
528 $PROFing = ''; # set to p or e if profiling
529 $PROFgroup = ''; # set to group if an explicit -Ggroup specified
530 $PROFauto = ''; # set to relevant hsc flag if -auto or -auto-all
531 $PROFcaf = ''; # set to relevant hsc flag if -caf-all
532 $PROFignore_scc = ''; # set to relevant parser flag if explicit sccs ignored
533 $UNPROFscc_auto = ''; # set to relevant hsc flag if forcing auto sccs without profiling
534 $TICKYing = ''; # set to t if compiling for ticky-ticky profiling
535 $PARing = ''; # set to p if compiling for PAR
536 $CONCURing = ''; # set to c if compiling for CONCURRENT
537 $GRANing = ''; # set to g if compiling for GRAN
538 $StkChkByPageFaultOK = 1; # may be set to 0 (false) for some builds
539 $Specific_hi_file = ''; # set by -ohi <file>; "-" for stdout
540 $Specific_dump_file = ''; # set by -odump <file>; "-" for stdout
541 $Using_dump_file = 0;
543 $Osuffix = ''; # default: use the normal suffix for that kind of output
545 $HiSuffix_prelude = '';
546 $Do_recomp_chkr = 0; # don't use the recompilatio checker unless asked
547 $Do_cc = -1; # a MAGIC indeterminate value; will be set to 1 or 0.
550 $Keep_hc_file_too = 0;
551 $Keep_s_file_too = 0;
552 $UseGhcInternals = 0; # if 1, may use GHC* modules
555 $Dump_parser_output = 0;
557 $Dump_asm_splitting_info = 0;
558 $NoImplicitPrelude = 0;
561 } # end of initDriverGlobals (Sigh)
563 # we split the argv passed to the driver into three:
568 # and files to be linked...
574 # cmd line options prefixing the unit we're compiling
579 We inject consistency-checking information into \tr{.hc} files (both
580 when created by the Haskell compiler and when compiled by the C
581 compiler), so that we can check that an executable is made from
582 consistently-built pieces. (The check is normally done just after
583 linking.) The checking is done by introducing/munging
584 \tr{what(1)}-style strings. Anyway, here are the relevant global
585 variables and their defaults:
587 $LinkChk = 1; # set to 0 if the link check should *not* be done
589 # major & minor version numbers; major numbers must always agree;
590 # minor disagreements yield a warning.
591 $HsC_major_version = 32;
592 $HsC_minor_version = 0;
593 $Cc_major_version = 36;
594 $Cc_minor_version = 1;
596 # options: these must always agree
597 $HsC_consist_options = ''; # we record, in this order:
598 # Build tag; debugging?
599 $Cc_consist_options = ''; # we record, in this order:
600 # Build tag; debugging?
603 %************************************************************************
605 \section[Driver-parse-argv]{Munge the command-line options}
607 %************************************************************************
609 Now slurp through the arguments.
612 #---------- user defined prelude ---------------------------------------
614 if (grep(/^-user-prelude$/, @ARGV)) {
616 # If ARGV contains -user-prelude we are compiling a piece of
617 # prelude for the user, probably with additional specialise pragmas
619 # We strip out the -O -f and -user-prelude flags provided on
620 # the command line and add the ones used to compile the prelude
621 # ToDo: get these options from a common definition in mkworld
623 # We also enable any options forced through with -user-prelude-force
625 # Hey, Check out this grep statement ;-) (PS)
627 @ARGV = grep((!/^-O/ && !/^-f/ && !/^-user-prelude$/) || s/^-user-prelude-force//,
631 '-fcompiling-ghc-internals=???', # ToDo!!!!
633 '-fshow-pragma-name-errs',
634 '-fshow-import-specs',
640 print STDERR "ghc: -user-prelude options:\n", "@ARGV", "\n";
643 &initDriverGlobals();
644 &splitCmdLine(@ARGV);
645 # Run through the cmd-line first time.
646 &processArgs(@Cmd_opts);
648 # Check to see if driver is only in the business
649 # to generate dependencies
650 if ( $Status == 0 && $Only_generate_deps ) {
652 push (@MkDependHS_flags, "-o$Osuffix") if $Osuffix;
653 push (@MkDependHS_flags, "-s$BuildTag") if $BuildTag;
654 local($to_do) = "$MkDependHS @MkDependHS_flags -- @Cmd_opts -- @Input_file" ;
655 &run_something($to_do, 'Haskell dependencies');
659 # if there are several input files,
660 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
661 # (except if linking, of course)
663 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
664 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
665 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
666 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
667 print STDERR "\tPerhaps the -odir option will do what you want.\n";
672 # check for various pathological -o and -odir combinations...
673 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
674 if ($Specific_output_file eq '-') {
675 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
677 } else { # amalgamate...
678 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
679 # ToDo: check we haven't got a junk name now...
680 $Specific_output_dir = ''; # reset
684 # crash and burn if there were errors
686 print STDERR $ShortUsage;
691 %************************************************************************
693 \section[Driver-post-argv-mangling]{Setup after reading options}
695 %************************************************************************
697 %************************************************************************
699 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
701 %************************************************************************
703 We come now to the default ``wads of options'' that are turned on by
704 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
705 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
708 The user can also specify his/her own list of options in a file; in
709 that case, the work is already done (see stuff about @minusO3@,
712 GHC allows very precise control of what happens during a compilation.
713 Core-to-Core and STG-to-STG passes can be run in any order, as many
714 times as you like. Individual transformations can be turned on or
717 Sadly, however, there are some interdependencies \& Things You Must
718 Not Do. Here is the list.
722 \item[\tr{-fspecialise}:]
723 The specialiser must have dependency-analysed input; but if you run
724 the simplifier to do this, you must not let it toss away unused
725 bindings! (The typechecker conveys some specialisation info via
726 ``unused'' bindings...)
728 \item[\tr{-ffloat-inwards}:]
729 Floating inwards should be done before strictness analysis, because
730 the latter will give better results.
732 \item[\tr{-fstatic-args}:]
733 The static-arguments-transformation pass {\em must} have the
734 simplifier run right after it.
736 \item[\tr{-fcalc-inlinings[12]}:]
737 Not required, but there may be slight gains by re-simplifying after
738 this is done. (You could then \tr{-fcalc-inlinings} again, just for
741 \item[\tr{-ffull-laziness}:]
742 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
743 that's run. (Um, well, howzabout the simplifier just once more...)
748 \item[\tr{-fupdate-analysis}:]
749 It really really wants to be the last STG-to-STG pass that is run.
754 sub setupOptimiseFlags {
760 '-ffloat-lets-exposing-whnf',
761 '-ffloat-primops-ok',
763 # '-fdo-lambda-eta-expansion', # too complicated
765 # '-flet-to-case', # no strictness analysis, so...
766 $Oopt_PedanticBottoms,
767 # $Oopt_MonadEtaExpansion, # no thanks
769 # These two work fine, if you really want no simplification at all,
770 # for bizarre test reasons. But you get really terrible code if you use them,
771 # for example: let x = e in x
772 # with dozens of redundant thunks etc. So I'm leaving them out.
774 # '-fsimpl-uf-use-threshold0',
775 # '-fessential-unfoldings-only',
777 $Oopt_UnfoldingUseThreshold,
778 $Oopt_MaxSimplifierIterations,
781 # '-ffull-laziness', # removed 95/04 WDP following Andr\'e's lead
783 $Oopt_FinalStgProfilingMassage
786 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
788 '-fdo-eta-reduction',
790 # initial simplify: mk specialiser happy: minimum effort please
794 '-fkeep-spec-pragma-ids', # required before specialisation
796 # I don't understand why we want -fessential-unfoldings-only here
797 # If we have it, the following nasty thing happens:
801 # where "*" means exported.
802 # In the essential-unfoldings pass we still substitute f for g
803 # but we don't substitute E for f first. So we get
807 # The g=f will get reverse-substituted later, but it's untidy.
809 # '-fessential-unfoldings-only',
810 # '-fsimpl-uf-use-threshold0',
812 '-fmax-simplifier-iterations1',
813 $Oopt_PedanticBottoms,
816 ($Oopt_DoSpecialise) ? (
817 '-fspecialise-overloaded',
818 $Oopt_SpecialiseUnboxed,
822 '-fsimplify', # need dependency anal after specialiser ...
823 '\(', # need tossing before calc-inlinings ...
825 '-ffloat-lets-exposing-whnf',
826 '-ffloat-primops-ok',
830 # '-fdo-eta-reduction',
831 '-fdo-lambda-eta-expansion',
833 $Oopt_PedanticBottoms,
834 $Oopt_MonadEtaExpansion,
835 $Oopt_UnfoldingUseThreshold,
836 $Oopt_MaxSimplifierIterations,
839 #LATER: '-fcalc-inlinings1', -- pointless for 2.01
841 # ($Oopt_FoldrBuildWW) ? (
842 # '-ffoldr-build-ww-anal',
843 # '-ffoldr-build-worker-wrapper',
847 # '-ffloat-lets-exposing-whnf',
848 # '-ffloat-primops-ok',
852 # '-fdo-eta-reduction',
853 # '-fdo-lambda-eta-expansion',
855 # $Oopt_PedanticBottoms,
856 # $Oopt_MonadEtaExpansion,
857 # $Oopt_UnfoldingUseThreshold,
858 # $Oopt_MaxSimplifierIterations,
862 # this pass-ordering sequence was agreed by Simon and Andr\'e
863 # (WDP 94/07, 94/11).
866 ($Oopt_FoldrBuild) ? (
867 '-ffoldr-build-on', # desugar list comprehensions for foldr/build
871 '-fignore-inline-pragma', # **** NB!
872 '-fdo-foldr-build', # NB
874 '-ffloat-lets-exposing-whnf',
875 '-ffloat-primops-ok',
879 # '-fdo-eta-reduction',
880 '-fdo-lambda-eta-expansion', # After full laziness
882 $Oopt_PedanticBottoms,
883 $Oopt_MonadEtaExpansion,
884 $Oopt_UnfoldingUseThreshold,
885 $Oopt_MaxSimplifierIterations,
894 '-ffloat-lets-exposing-whnf',
895 '-ffloat-primops-ok',
899 '-fdo-eta-reduction',
900 '-fdo-lambda-eta-expansion',
902 ($Oopt_FoldrBuildInline),
903 # you need to inline foldr and build
904 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
905 # but do reductions if you see them!
906 $Oopt_PedanticBottoms,
907 $Oopt_MonadEtaExpansion,
908 $Oopt_UnfoldingUseThreshold,
909 $Oopt_MaxSimplifierIterations,
917 '-ffloat-lets-exposing-whnf',
918 '-ffloat-primops-ok',
922 # '-fdo-eta-reduction',
923 '-fdo-lambda-eta-expansion',
925 '-flet-to-case', # Aha! Only done after strictness analysis
926 $Oopt_PedanticBottoms,
927 $Oopt_MonadEtaExpansion,
928 $Oopt_UnfoldingUseThreshold,
929 $Oopt_MaxSimplifierIterations,
934 # Case-liberation for -O2. This should be after
935 # strictness analysis and the simplification which follows it.
939 # : "-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 \\)" ),
941 # Final clean-up simplification:
946 '-ffloat-lets-exposing-whnf',
947 '-ffloat-primops-ok',
951 # '-fdo-eta-reduction',
952 '-fdo-lambda-eta-expansion',
955 '-fignore-inline-pragma', # **** NB!
956 $Oopt_FoldrBuildInline,
957 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
958 # but still do reductions if you see them!
959 $Oopt_PedanticBottoms,
960 $Oopt_MonadEtaExpansion,
961 $Oopt_UnfoldingUseThreshold,
962 $Oopt_MaxSimplifierIterations,
967 #LATER: '-fcalc-inlinings2', -- pointless for 2.01
972 $Oopt_FinalStgProfilingMassage,
978 # SPECIAL FLAGS for -O2
986 Sort out what we're going to do about optimising. First, the @hsc@
987 flags and regular @cc@ flags to worry about:
989 if ( $OptLevel <= 0 ) {
991 # for this level, we tell the parser -fignore-interface-pragmas
992 push(@HsC_flags, '-fignore-interface-pragmas');
993 # and tell the compiler not to produce them
994 push(@HsC_flags, '-fomit-interface-pragmas');
996 &add_Hsc_flags( @HsC_minusNoO_flags );
997 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
999 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
1001 &add_Hsc_flags( @HsC_minusO_flags );
1002 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
1003 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
1004 # but it *is* useful in compiling the garbage collectors (so said
1005 # Patrick many moons ago...).
1007 } else { # -Ofile, then...
1009 &add_Hsc_flags( @HsC_minusO3_flags );
1010 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
1013 } # setupOptimiseFlags
1017 %************************************************************************
1019 \subsection{Check for consistency, etc.}
1021 %************************************************************************
1023 Sort out @$BuildTag@, @$PROFing@, @$CONCURing@, @$PARing@,
1024 @$GRANing@, @$TICKYing@:
1026 sub setupBuildFlags {
1029 # PROFILING stuff after argv mangling:
1031 # warn about any scc exprs found (in case scc used as identifier)
1032 push(@HsP_flags, '-W');
1034 # add -auto sccs even if not profiling !
1035 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
1038 push(@HsC_flags, $PROFauto) if $PROFauto;
1039 push(@HsC_flags, $PROFcaf) if $PROFcaf;
1040 #push(@HsC_flags, $PROFdict) if $PROFdict;
1042 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
1044 push(@HsP_flags, (($PROFignore_scc) ? $PROFignore_scc : '-S'));
1046 if ( $SplitObjFiles ) {
1047 # can't split with cost centres -- would need global and externs
1048 print STDERR "$Pgm: WARNING: splitting objects when profiling will *BREAK* if any _scc_s are present!\n";
1049 # (but it's fine if there aren't any _scc_s around...)
1050 # $SplitObjFiles = 0; # unset
1051 #not an error: for now: $Status++;
1054 #if ( $BuildTag ne '' ) {
1055 # local($b) = $BuildDescr{$BuildTag};
1056 # if ($CONCURing eq 'c') { print STDERR "$Pgm: Can't mix $b with -concurrent.\n"; exit 1; }
1057 # if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
1058 # if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
1059 # if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
1061 # # ok to have a user-way profiling build
1062 # # eval the profiling opts ... but leave user-way BuildTag
1063 # if ($PROFing eq 'p') { &processArgs(split(' ', $SetupOpts{'_p'})); } # eval($EvaldSetupOpts{'_p'}); }
1065 if ( $PROFing eq 'p' ) {
1066 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
1067 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
1068 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
1069 $BuildTag = ($CONCURing eq 'c') ? '_mr' : '_p' ; # possibly "profiled concurrent"...
1071 } elsif ( $CONCURing eq 'c' ) {
1072 if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix -concurrent with -parallel.\n"; exit 1; }
1073 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -concurrent with -gransim.\n"; exit 1; }
1074 $BuildTag = ($TICKYing eq 't') ? '_mt' : '_mc' ; # possibly "ticky concurrent"...
1075 # "profiled concurrent" already acct'd for...
1077 } elsif ( $PARing eq 'p' ) {
1078 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
1079 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
1082 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
1083 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
1087 } elsif ( $GRANing eq 'g' ) {
1088 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
1091 } elsif ( $TICKYing eq 't' ) {
1097 After the sanity checks, add flags to the necessary parts of the driver pipeline:
1100 if ( $BuildTag ne '' ) { # something other than normal sequential...
1102 local($Tag) = "${BuildTag}";
1103 $Tag =~ s/_//; # move the underscore to the back
1105 $HscOut = '-C='; # must go via C
1106 &processArgs(split(' ', $SetupOpts{$BuildTag}));
1107 # eval($EvaldSetupOpts{$BuildTag});
1111 Decide what the consistency-checking options are in force for this run:
1114 $HsC_consist_options = "${BuildTag},${DEBUGging}";
1115 $Cc_consist_options = "${BuildTag},${DEBUGging}";
1118 # Funny place to put it, but why not.
1120 if ( $HiSuffix_prelude eq '' ) {
1121 local($Tag) = "${BuildTag}";
1123 $Tag = "${Tag}_" if $Tag ne '';
1124 $HiSuffix_prelude="${Tag}hi";
1126 #push(@HsC_flags, "-hisuf-prelude=.${HiSuffix_prelude}"); # use appropriate Prelude .hi files
1127 #push(@HsC_flags, "-hisuf=.${HiSuffix}");
1132 %************************************************************************
1134 \subsection{Add on machine-specific C-compiler flags}
1136 %************************************************************************
1138 Shove on magical machine-specific options. We use \tr{unshift} to
1139 stick them on the {\em front} of the arrays, so that ``later''
1140 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
1142 Note: a few ``always apply'' flags were set at the very beginning.
1147 if ($TargetPlatform =~ /^alpha-/) {
1148 # we know how to *mangle* asm for alpha
1149 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1150 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1151 unshift(@CcBoth_flags, ('-static'));
1153 } elsif ($TargetPlatform =~ /^hppa/) {
1154 # we know how to *mangle* asm for hppa
1155 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1156 unshift(@CcBoth_flags, ('-static'));
1158 # We don't put in '-mlong-calls', because it's only
1159 # needed for very big modules (sigh), and we don't want
1160 # to hobble ourselves further on all the other modules
1163 # [Dated comment (gcc-2.6.x?), -mlong-calls is no longer
1164 # a supported gcc HPPA flag]
1165 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
1166 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
1167 # (very nice, but too bad the HP /usr/include files don't agree.)
1169 } elsif ($TargetPlatform =~ /^i386-/) {
1170 # we know how to *mangle* asm for X86
1171 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1172 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK && $TargetPlatform !~ /nextstep/;
1173 # I do not know how to do STACK_CHECK_BY_PAGE_FAULT
1174 # on NeXTs (my fault, not theirs), so I don't.
1177 # -fno-defer-pop : basically the same game as for m68k
1179 # -fomit-frame-pointer : *must* ; because we're stealing
1180 # the fp (%ebp) for our register maps. *All* register
1181 # maps (in MachRegs.lh) must steal it.
1183 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1184 unshift(@CcRegd_flags, '-fomit-frame-pointer');
1185 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1187 } elsif ($TargetPlatform =~ /^m68k-/) {
1188 # we know how to *mangle* asm for m68k
1189 unshift (@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1190 unshift (@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK && $TargetPlatform !~ /nextstep/;
1191 # I do not know how to do STACK_CHECK_BY_PAGE_FAULT
1192 # on NeXTs (my fault, not theirs), so I don't.
1195 # -fno-defer-pop : for the .hc files, we want all the pushing/
1196 # popping of args to routines to be explicit; if we let things
1197 # be deferred 'til after an STGJUMP, imminent death is certain!
1199 # -fomit-frame-pointer : *don't*
1200 # It's better to have a6 completely tied up being a frame pointer
1201 # rather than let GCC pick random things to do with it.
1202 # (If we want to steal a6, then we would try to do things
1203 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1205 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1206 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1207 # maybe gives reg alloc a better time
1208 # also: -fno-defer-pop is not sufficiently well-behaved without it
1210 } elsif ($TargetPlatform =~ /^mips-/) {
1211 # we (hope to) know how to *mangle* asm for MIPSen
1212 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1213 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1214 unshift(@CcBoth_flags, ('-static'));
1216 } elsif ($TargetPlatform =~ /^powerpc-/) {
1217 # we know how to *mangle* asm for PowerPC
1218 # :-( unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1219 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1220 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1221 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1222 # unshift(@Ld_flags, ('-Xlinker -bbigtoc -Xlinker -bnoquiet')); # we have lots of toc entries..
1223 unshift(@Ld_flags, ('-Xlinker -bbigtoc')); # we have lots of toc entries...
1225 } elsif ($TargetPlatform =~ /^sparc-/) {
1226 # we know how to *mangle* asm for SPARC
1227 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1228 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1231 } # end of setupMachOpts
1234 Same unshifting magic, but for special linker flags.
1236 The configure script determines whether the object file symbol tables
1237 have a leading underscore, and sets @LeadingUnderscore@ accordingly.
1238 (The driver script `sees' the setting of the @LeadingUnderscore@
1239 by having the Makefile prepend it).
1243 local($uscore) = ( ${LeadingUnderscore} eq 'YES' ) ? '_' : '';
1246 (($Ld_main) ? ( '-u', "${uscore}Main_" . $Ld_main . '_closure' ) : ()));
1248 ( '-u', "${uscore}PrelBase_Z91Z93_closure" # i.e., []
1249 ,'-u', "${uscore}PrelBase_IZh_static_info"
1250 ,'-u', "${uscore}PrelBase_CZh_static_info"
1251 ,'-u', "${uscore}PrelBase_False_inregs_info"
1252 ,'-u', "${uscore}PrelBase_True_inregs_info"
1253 ,'-u', "${uscore}STBase_SZh_static_info"
1254 ,'-u', "${uscore}DEBUG_REGS"
1258 } # end of setupLinkOpts
1262 %************************************************************************
1264 \subsection{Set up include paths and system-library enslurpment}
1266 %************************************************************************
1268 Now that we know what garbage-collector, etc., are required, we can
1269 finalise our list of libraries to slurp through, and generally Get
1274 # default includes must be added AFTER option processing
1275 if ( ! $INSTALLING ) {
1276 push (@Include_dir, "$TopPwd/${CURRENT_DIR}/${GHC_INCLUDE_DIR}");
1278 push (@Include_dir, "$InstLibDirGhc/includes");
1279 push (@Include_dir, "$InstLibDirGhc/includes");
1281 } # end of setupIncPaths
1286 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1289 foreach $f (@SysLibrary) {
1290 next if $f =~ /_cbits/;
1291 $f .= $BuildTag if $f =~ /^-lHS/;
1294 # fiddle the TopClosure file name...
1295 $TopClosureFile =~ s/XXXX//;
1297 # Push library HSrts, plus boring clib bit
1298 push(@SysLibrary, "-lHSrts${BuildTag}");
1299 push(@SysLibrary, '-lHSclib');
1301 # RTS compiled with cygwin32, uses the WinMM API
1302 # to implement the itimers, since cygwin.dll does not
1303 # support it. Only reqd. for `ways' that use itimers.
1305 push(@SysLibrary, '-lwinmm') if $BuildTag ne '' && $TargetPlatform eq 'i386-unknown-cygwin32';
1307 # Push the pvm libraries
1308 if ($BuildTag eq '_mp') {
1309 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1310 push(@SysLibrary, "-L$pvmlib", '-lpvm3', '-lgpvm3');
1311 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1312 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1313 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1314 push(@SysLibrary, '-lsocket', '-lnsl');
1318 # Push the GNU multi-precision arith lib; and the math library
1319 push(@SysLibrary, '-lgmp');
1320 push(@SysLibrary, '-lm');
1323 %************************************************************************
1325 \subsection{Check that this system was built to do what we are asking}
1327 %************************************************************************
1329 Before continuing we check that the appropriate build is available.
1332 #die "$Pgm: no BuildAvail?? $BuildTag\n" if $BuildDescr{$BuildTag} eq '' ; # sanity
1334 if ( $BuildDescr{$BuildTag} eq '' ) {
1335 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1336 "' \"build\" is not available with your GHC setup.\n";
1337 print STDERR "(It was not configured for it at your site.)\n";
1338 print STDERR $ShortUsage;
1342 } # end of setupSyslibs
1346 %************************************************************************
1348 \subsection{Final miscellaneous setup bits before we start going}
1350 %************************************************************************
1352 Record largest specific heapsize, if any.
1354 sub setupHeapStackSize {
1355 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1356 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1357 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1358 push(@HsC_rts_flags, "-K$Specific_stk_size");
1362 If no input or link files seen, then we let 'em feed in stdin; this is
1363 mainly for debugging.
1367 if ($#Input_file < 0 && $#Link_file < 0) {
1368 @Input_file = ( '-' );
1370 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1371 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n";
1372 while (<>) { print INF $_; }
1373 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1378 Tell the world who we are, if they asked.
1380 print STDERR "${PROJECTNAME}, version ${PROJECTVERSION}, patchlevel ${PROJECTPATCHLEVEL}\n"
1384 %************************************************************************
1386 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1388 %************************************************************************
1390 Process the input files; don't continue with linking if there are
1391 problems (global variable @$Status@ non-zero).
1393 foreach $ifile (@Input_file) {
1394 &ProcessInputFile($ifile);
1397 if ( $Status > 0 ) { # don't link if there were errors...
1398 print STDERR $ShortUsage;
1403 # append last minute flags linker and consistency flags
1410 Link if appropriate.
1413 local($libdirs) = '';
1415 # glue them together:
1416 push(@UserLibrary_dir, @SysLibrary_dir);
1418 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1420 # for a linker, use an explicitly given one, or the going C compiler ...
1421 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1423 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1424 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1426 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $TopClosureFile $libdirs @UserLibrary @SysLibrary";
1427 &run_something($to_do, 'Linker');
1429 # finally, check the consistency info in the binary
1430 local($executable) = $Files_to_tidy[0];
1431 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1434 # dynamically load consistency-chking code; then do it.
1435 require('ghc-consist.prl')
1436 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1438 &chk_consistency_info ( $executable );
1441 # if PVM parallel stuff, we do truly weird things.
1442 # Essentially: (1) move the executable over to where PVM expects
1443 # to find it. (2) create a script in place of the executable
1444 # which will cause the program to be run, via SysMan.
1445 if ( $PARing eq 'p' ) {
1446 local($pvm_executable) = $executable;
1447 local($pvm_executable_base);
1449 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1450 local($pwd) = `pwd`;
1452 $pwd =~ s/^\/tmp_mnt//;
1453 $pvm_executable = "$pwd/$pvm_executable";
1456 $pvm_executable =~ s|/|=|g; # make /s into =s
1457 $pvm_executable_base = $pvm_executable;
1459 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1460 . "/$pvm_executable";
1462 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1464 # OK, now create the magic script for "$executable"
1465 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1466 print EXEC <<EOSCRIPT1;
1467 eval 'exec perl -S \$0 \${1+"\$@"}'
1468 if \$running_under_some_shell;
1469 # =!=!=!=!=!=!=!=!=!=!=!
1470 # This script is automatically generated: DO NOT EDIT!!!
1471 # Generated by Glasgow Haskell, version ${PROJECTVERSION} ${PROJECTPATCHLEVEL}
1473 \$pvm_executable = '$pvm_executable';
1474 \$pvm_executable_base = '$pvm_executable_base';
1475 \$SysMan = '$SysMan';
1478 print EXEC <<\EOSCRIPT2;
1479 # first, some magical shortcuts to run "commands" on the binary
1481 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1483 system("$cmd $pvm_executable");
1487 # OK, really run it; process the args first
1488 $ENV{'PE'} = $pvm_executable_base;
1490 $nprocessors = 2; # the default
1494 # ToDo: handle --RTS
1495 args: while ($a = shift(@ARGV)) {
1496 if ( $a eq '+RTS' ) {
1498 } elsif ( $a eq '-RTS' ) {
1501 if ( $a eq '-d' && $in_RTS_args ) {
1503 } elsif ( $a =~ /^-N(\d+)/ && $in_RTS_args ) {
1506 push(@nonPVM_args, $a);
1510 local($return_val) = 0;
1511 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
1513 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
1516 close(EXEC) || die "Failed closing $executable\n";
1517 chmod 0755, $executable;
1521 # that... that's all, folks!
1523 exit $Status; # will still be 0 if all went well
1526 %************************************************************************
1528 \section[Driver-do-one-file]{How to process a single input file}
1530 %************************************************************************
1533 sub ProcessInputFile {
1534 local($ifile) = @_; # input file name
1535 local($ifile_root); # root of or basename of input file
1536 local($ofile_target); # ultimate output file we hope to produce
1537 # from input file (need to know for recomp
1538 # checking purposes)
1539 local($hifile_target);# ditto (but .hi file)
1542 Handle the weirdity of input from stdin.
1544 if ($ifile ne '-') {
1545 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1546 $ofile_target = # may be reset later...
1547 ($Specific_output_file ne '' && ! $Do_lnkr)
1548 ? $Specific_output_file
1549 : &odir_ify($ifile_root, 'o');
1550 $hifile_target= ($Specific_hi_file ne '')
1552 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1553 # NB: may change if $ifile_root isn't module name (??)
1555 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1556 $ifile_root = '_stdin';
1557 $ofile_target = '_stdout'; # gratuitous?
1558 $hifile_target= '_stdout'; # ditto?
1562 We need to decide what phases of the compilation system we will run
1563 over this file. The defaults are the ones established when processing
1564 flags. (That established what the last phase run for all files is.)
1566 We do the pre-recompilation-checker phases here; the rest later.
1570 Look at the suffix and decide what initial phases of compilation may
1571 be dropped off for this file. Also the rather boring business of
1572 which files are coming-in/going-out.
1574 Again, we'll do the post-recompilation-checker parts of this later.
1576 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1577 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1580 # names of the files to stuff between phases
1581 # defaults are temporaries
1582 local($in_lit2pgm) = $ifile;
1583 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1584 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1585 local($hsc_hi) = "$Tmp_prefix.hi";
1586 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1587 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1588 local($as_out) = $ofile_target;
1590 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
1592 # OK, let's strip off some literate junk..
1593 if ($ifile =~ /\.lhs$/) {
1594 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
1596 $lit2pgm_hscpp = $ifile;
1602 # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas
1603 &check_for_source_options($lit2pgm_hscpp,$ifile);
1604 # options found in the source file take a back seat, i.e., we scan
1605 # them first. Only process the command line again if source file
1606 # contained anything of interest *or* there's more than one
1607 # input file (we have to reset the options).
1609 if ( $#Input_file >= 0 || $#File_options >= 0) {
1610 #@File_options = (@File_options, @Cmd_opts);
1612 # Now process the command line
1613 &initDriverGlobals();
1614 &processArgs((@File_options,@Cmd_opts));
1615 print STDERR "\nEffective command line: " .
1616 join(' ',(@File_options,@Cmd_opts)) . "\n" if $Verbose;
1619 # Having got the effective command line scanned, set up
1620 # the various options in prep for some real work.
1622 # check the sanity of the BuildTag we're about to use,
1623 # and if needs be, add some more flags and setup to
1624 # the different phases.
1627 &setupOptimiseFlags();
1630 &setupHeapStackSize();
1633 # These two variables need to be set after the
1634 # command-line has been processed and the build options
1635 # have be seen set up. This is because command-line options
1636 # can control whether to compile vias C or not.
1638 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1640 : ( ($HscOut eq '-C=') ? 1 : 0 );
1641 local($do_as) = $Do_as;
1642 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1644 if ($ifile =~ /.lhs$/ || $ifile =~ /.hs$/ ) {
1646 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
1647 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1649 } elsif ($ifile =~ /\.c$/) {
1650 $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
1651 $hsc_out = $ifile; $is_hc_file = 0;
1652 } elsif ($ifile =~ /\.s$/) {
1653 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
1655 } else { # don't know what it is, but nothing to do herein...
1656 $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
1659 # hack to avoid running hscpp
1660 $HsCpp = $Cat if ! $Cpp_flag_set;
1662 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc)
1666 We now think about whether to run hsc/cc or not (when hsc produces .s
1667 stuff, it effectively takes the place of both phases).
1669 To get the output file name right: for each phase that we are {\em
1670 not} going to run, set its input (i.e., the output of its preceding
1671 phase) to @"$ifile_root.<suffix>"@.
1673 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
1676 # Warning issued if -keep-hc-file-too is used without
1677 # -fvia-C (or the equivalent)
1679 if ( $HscOut ne '-C=' && $Keep_hc_file_too ) {
1680 print STDERR "Warning: Native code generator to be used, -keep-hc-file-too will be ignored\n";
1683 if (! $do_cc && ! $do_as) { # stopping after hsc
1684 $hsc_out = ($Specific_output_file ne '')
1685 ? $Specific_output_file
1686 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
1688 $ofile_target = $hsc_out; # reset
1691 if (! $do_as) { # stopping after gcc (or hsc)
1692 $cc_as = ($Specific_output_file ne '')
1693 ? $Specific_output_file
1694 : &odir_ify($ifile_root, ( $Only_preprocess_C ) ? 'i' : 's');
1696 $ofile_target = $cc_as; # reset
1702 Now the Haskell compiler, C compiler, and assembler
1706 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
1707 $ofile_target, $hifile_target);
1711 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
1712 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root);
1715 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
1717 # save a copy of the .s file..
1718 &saveIntermediate($ifile_root , "s" , $cc_as) if ($do_as && $Keep_s_file_too);
1719 &runAs($as_out, $ifile_root) if $do_as;
1722 Finally, decide what to queue up for linker input.
1724 # tentatively assume we will eventually produce linker input:
1725 push(@Link_file, &odir_ify($ifile_root, 'o'));
1727 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
1729 if ( $ifile !~ /\.(lhs|hs|hc|c|s)$/ && $ifile !~ /_hc$/ ) {
1730 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n"
1731 if $ifile !~ /\.a$/;
1733 # oops; we tentatively pushed the wrong thing; fix & do the right thing
1734 pop(@Link_file); push(@Link_file, $ifile);
1738 } # end of ProcessInputFile
1741 %************************************************************************
1743 \section[Driver-run-phases]{Routines to run the various phases}
1745 %************************************************************************
1749 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
1751 local($to_do) = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && ".
1752 "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
1753 @Files_to_tidy = ( $lit2pgm_hscpp );
1755 &run_something($to_do, 'literate pre-processor');
1761 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
1765 if ($HsCpp eq $Cat) {
1766 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $hscpp_hsc && ".
1767 "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
1768 @Files_to_tidy = ( $hscpp_hsc );
1769 &run_something($to_do, 'Ineffective C pre-processor');
1771 local($includes) = '-I' . join(' -I',@Include_dir);
1772 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $hscpp_hsc && ".
1773 "$HsCpp $Verbose $genSPECS_flag @HsCpp_flags -D__HASKELL1__=$Haskell1Version -D__GLASGOW_HASKELL__=$GhcVersionInfo $includes $lit2pgm_hscpp >> $hscpp_hsc";
1774 @Files_to_tidy = ( $hscpp_hsc );
1775 &run_something($to_do, 'Haskellised C pre-processor');
1782 sub runHscAndProcessInterfaces {
1783 local($ifile, $hscpp_hsc, $ifile_root, $ofile_target, $hifile_target) = @_;
1785 # $ifile is the original input file
1786 # $hscpp_hsc post-unlit, post-cpp, etc., input file
1787 # $ifile_root input filename minus suffix
1788 # $ofile_target the output file that we ultimately hope to produce
1789 # $hifile_target the .hi file ... (ditto)
1791 local($source_unchanged) = 1;
1793 # Check if the source file is up to date relative to the target; in
1794 # that case we say "source is unchanged" and let the compiler bail out
1795 # early if the import usage information allows it.
1797 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
1798 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
1800 # The informational messages below are now conditional on -v being set -- SOF
1801 if ( ! -f $ofile_target ) {
1802 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n" if $Verbose;
1803 $source_unchanged = 0;
1806 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
1807 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
1809 if ( ! -f $hifile_target ) {
1810 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n" if $Verbose;
1811 $source_unchanged = 0;
1814 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
1815 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
1817 if ($i_mtime > $o_mtime) {
1818 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n" if $Verbose;
1819 $source_unchanged = 0;
1822 # So if source_unchanged is still "1", we pass on the good news to the compiler
1823 # The -recomp flag can disable this, forcing recompilation
1824 if ($Do_recomp_chkr && $source_unchanged) {
1825 push(@HsC_flags, '-fsource-unchanged');
1830 &runHsc($ifile_root, $hsc_out, $hsc_hi, $going_interactive);
1832 # See if it bailed out early, saying nothing needed doing.
1833 # We work this out by seeing if it created an output .hi file
1835 if ( ! -f $hsc_hi ) {
1836 # Doesn't exist, so we bailed out early.
1837 # Tell the C compiler and assembler not to run
1838 $do_cc = 0; $do_as = 0;
1840 # Update dependency info, touch both object file and
1841 # interface file, so that the following invariant is
1844 # a dependent module's interface file should after recompilation
1845 # checking be newer than the interface files of its imports.
1847 # That is, if module A's interface file changes, then module B
1848 # (which import from A) needs to be checked.
1849 # If A's change does not affect B, which causes the compiler to bail
1850 # out early, we still need to touch the interface file of B. The reason
1851 # for this is that B may export A's interface.
1853 &run_something("touch $ofile_target $hifile_target",
1854 "Touch $ofile_target $hifile_target, to propagate dependencies");
1858 # Didn't bail out early (new .hi file) so we thunder on
1860 # If non-interactive, heave in the consistency info at the end
1861 # NB: pretty hackish (depends on how $output is set)
1862 if ( ! $going_interactive ) {
1863 if ( $HscOut eq '-C=' ) {
1864 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
1866 } elsif ( $HscOut eq '-S=' ) {
1867 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
1868 $consist =~ s/,/./g;
1869 $consist =~ s/\//./g;
1870 $consist =~ s/-/_/g;
1871 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
1872 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
1874 &run_something($to_do, 'Pin on Haskell consistency info');
1878 # Interface-handling is important enough to live off by itself
1879 require('ghc-iface.prl') || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
1880 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
1882 # if we're going to split up object files,
1883 # we inject split markers into the .hc file now
1884 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
1885 &inject_split_markers ( $hsc_out );
1888 # save a copy of the .hc file, even if we are carrying on...
1889 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
1890 &saveIntermediate($ifile_root , "hc" , $hsc_out);
1900 local($ifile_root, $hsc_out, $hsc_hi, $going_interactive) = @_;
1902 # prepend comma to HsP flags (so hsc can tell them apart...)
1903 foreach $a ( @HsP_flags ) { $a = ",$a" unless $a =~ /^,/; }
1905 &makeHiMap() unless $HiMapDone;
1906 #print STDERR "HiIncludes: $HiIncludeString\n";
1907 push(@HsC_flags, "-himap=$HiIncludeString");
1909 # here, we may produce .hc/.s and/or .hi files
1910 local($output) = '';
1911 @Files_to_tidy = ();
1913 if ( $going_interactive ) {
1914 # don't need .hi unless going to show it on stdout:
1915 $ProduceHi = '-nohifile=' if ! $HiOnStdout;
1916 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
1919 # set up for producing output/.hi; note that flag twiddling
1920 # may mean that nothing will actually be produced:
1921 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out";
1922 @Files_to_tidy = ( $hsc_hi, $hsc_out );
1924 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
1925 if ( $CollectingGCstats ) {
1926 push(@HsC_rts_flags, "-S$ifile_root.stat");
1927 push(@Files_to_tidy, "$ifile_root.stat");
1930 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
1931 # emit nofibbish time/bytes-alloc stats to stderr;
1932 # see later .stat file post-processing
1933 push(@HsC_rts_flags, "-s$Tmp_prefix.stat");
1934 push(@Files_to_tidy, "$Tmp_prefix.stat");
1938 if ($Specific_dump_file ne '') {
1939 $dump = "2>> $Specific_dump_file";
1940 $Using_dump_file = 1;
1944 $to_do = "$HsC @HsP_flags ,$hscpp_hsc $dump @HsC_flags $CoreLint $StgLint $Verbose $output +RTS @HsC_rts_flags";
1945 &run_something($to_do, 'Haskell compiler');
1947 # finish business w/ nofibbish time/bytes-alloc stats
1948 &process_ghc_timings() if $CollectGhcTimings;
1952 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
1953 of (module-name, pathname) pairs, one per line, separated by a space.
1956 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1960 # collect in %HiMap; write later; also used elsewhere in driver
1962 local($mod, $path, $d, $e);
1964 # reset the global variables:
1966 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
1968 foreach $d ( @Import_dir ) {
1969 if ($HiIncludeString) {
1970 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix}";
1972 $HiIncludeString = "$d%.${HiSuffix}";
1977 foreach $d ( @SysImport_dir ) {
1978 if ($HiIncludeString) {
1979 $HiIncludeString = "$HiIncludeString:${d}%.${HiSuffix_prelude}";
1981 $HiIncludeString = "${d}%.${HiSuffix_prelude}";
1990 %************************************************************************
1992 \section[Driver-misc-utils]{Miscellaneous utilities}
1994 %************************************************************************
1996 %************************************************************************
1998 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
2000 %************************************************************************
2004 local($ofile,$def_suffix) = @_;
2006 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
2010 local($orig_file, $def_suffix) = @_;
2011 if ($Specific_output_dir eq '') { # do nothing
2012 &osuf_ify($orig_file, $def_suffix);
2014 local ($orig_file_only);
2015 ($orig_file_only = $orig_file) =~ s|.*/||;
2016 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
2023 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
2025 local($includes) = '-I' . join(' -I', @Include_dir);
2028 local($c_flags) = "@CcBoth_flags";
2029 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2031 # "input" files to use that are not in some weird directory;
2032 # to help C compilers grok .hc files [ToDo: de-hackify]
2033 local($cc_help) = "ghc$$.c";
2034 local($cc_help_s) = "ghc$$.s";
2037 $s_output = ($is_hc_file || $TargetPlatform =~ /^(powerpc|hppa|i386)/) ? $cc_as_o : $cc_as;
2038 $c_flags .= " @CcRegd_flags";
2039 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2041 # C compiler won't like the .hc extension. So we create
2042 # a tmp .c file which #include's the needful.
2043 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2044 if ( $is_hc_file ) {
2046 #ifdef __STG_GCC_REGS__
2047 # if ! (defined(MAIN_REG_MAP) || defined(MARK_REG_MAP) || defined(SCAN_REG_MAP) || defined(SCAV_REG_MAP) || defined(FLUSH_REG_MAP))
2048 # define MAIN_REG_MAP
2051 #include "stgdefs.h"
2053 # user may have asked for #includes to be injected...
2054 print TMP @CcInjects if $#CcInjects >= 0;
2056 # heave in the consistency info
2057 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2059 # and #include the real source
2060 print TMP "#include \"$hsc_out\"\n";
2061 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2063 local($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 )";
2064 # note: __GLASGOW_HASKELL__ is pointedly *not* #defined at the C level.
2065 if ( $Only_preprocess_C ) { # HACK ALERT!
2066 $to_do =~ s/ -S\b//g;
2068 @Files_to_tidy = ( $cc_help, $cc_help_s, $s_output );
2069 $PostprocessCcOutput = 1; # hack, dear hack...
2070 &run_something($to_do, 'C compiler');
2071 $PostprocessCcOutput = 0;
2072 unlink($cc_help, $cc_help_s);
2078 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2080 if ( $is_hc_file ) {
2081 # dynamically load assembler-fiddling code, which we are about to use:
2082 require('ghc-asm.prl')
2083 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2086 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2089 # post-process the assembler [.hc files only]
2090 &mangle_asm($cc_as_o, $cc_as);
2094 #OLD: local($target) = 'oops';
2095 #OLD: $target = '-alpha' if $TargetPlatform =~ /^alpha-/;
2096 #OLD: $target = '-hppa' if $TargetPlatform =~ /^hppa/;
2097 #OLD: $target = '-old-asm' if $TargetPlatform =~ /^i386-/;
2098 #OLD: $target = '-m68k' if $TargetPlatform =~ /^m68k-/;
2099 #OLD: $target = '-mips' if $TargetPlatform =~ /^mips-/;
2100 #OLD: $target = '' if $TargetPlatform =~ /^powerpc-/;
2101 #OLD: $target = '-solaris' if $TargetPlatform =~ /^sparc-sun-solaris2/;
2102 #OLD: $target = '-sparc' if $TargetPlatform =~ /^sparc-sun-sunos4/;
2104 #OLD: if ( $target ne '' ) {
2105 #OLD: require("ghc-asm$target.prl")
2106 #OLD: || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm$target.prl!\n");
2107 #OLD: &mangle_asm($cc_as_o, "$cc_as-2"); # the OLD one!
2108 #OLD: &run_something("$Cmp -s $cc_as-2 $cc_as || $Diff $cc_as-2 $cc_as 1>&2 || exit 0",
2109 #OLD: "Diff'ing old and new mangled .s files"); # NB: to stderr
2112 } elsif ($TargetPlatform =~ /^hppa/) {
2113 # minor mangling of non-threaded files for hp-pa only
2114 require('ghc-asm.prl')
2115 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2116 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2118 } elsif ($TargetPlatform =~ /^powerpc/) {
2119 # minor mangling of non-threaded files for hp-pa only
2120 require('ghc-asm.prl')
2121 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-powerpc.prl!\n");
2122 &mini_mangle_asm_powerpc($cc_as_o, $cc_as);
2123 } elsif ($TargetPlatform =~ /^i386/) {
2124 # extremely-minor OFFENSIVE mangling of non-threaded just one file
2125 require('ghc-asm.prl')
2126 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2127 &mini_mangle_asm_i386($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 if ( ! $SplitObjFiles ) {
2144 local($to_do) = "$asmblr -o $as_out -c @As_flags $cc_as";
2145 @Files_to_tidy = ( $as_out );
2146 &run_something($to_do, 'Unix assembler');
2148 } else { # more complicated split-ification...
2150 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2152 # If -odir is used, great, just pin it in front of the
2153 # generated split file names. If it hasn't been set, we
2154 # snatch it from the ifile_root.
2158 if ( $Specific_output_dir eq '' ) {
2159 $Specific_output_dir = ${ifile_root};
2162 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2163 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2164 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2165 @Files_to_tidy = ( $split_out );
2167 &run_something($to_do, 'Unix assembler');
2173 %************************************************************************
2175 \subsection[Driver-run-something]{@run_something@: Run a phase}
2177 %************************************************************************
2181 local($str_to_do, $tidy_name) = @_;
2183 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2184 print STDERR "$str_to_do\n" if $Verbose;
2186 if ($Using_dump_file) {
2187 open(DUMP, ">> $Specific_dump_file")
2188 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2189 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2191 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2194 local($return_val) = 0;
2196 if ( length($str_to_do) > 4000) {
2197 # 4000 - on the random side, just like the *real* ARG_MAX
2200 # With some shells, command lines of this length may
2201 # very well cause trouble. To safeguard against this, we squirrel the
2202 # command into a file and exec that.
2203 local ($sh) = $ENV{'REAL_SHELL'};
2204 print STDERR "Backup plan A: saving cmd line in ${Tmp_prefix}.sh and executing that with $sh\n" if $Verbose;
2205 open (TEMP, "> ${Tmp_prefix}.sh") ||
2206 &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.sh'\n");
2207 print TEMP "$Time $str_to_do\n";
2209 &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.sh'\n");
2210 system("$sh $Tmp_prefix.sh");
2213 unlink "${Tmp_prefix}.sh";
2215 system("$Time $str_to_do");
2219 if ( $PostprocessCcOutput ) { # hack, continued
2220 open(CCOUT, "< $Tmp_prefix.ccout")
2221 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2223 next if /attribute directive ignored/;
2224 next if /call-clobbered/;
2225 next if /from .*COptRegs\.lh/;
2226 next if /from .*(stg|rts)defs\.h:/;
2227 next if /from ghc\d+.c:\d+:/;
2228 next if /from .*\.lc/;
2229 next if /from .*SMinternal\.l?h/;
2230 next if /ANSI C does not support \`long long\'/;
2231 next if /warning:.*was declared \`extern\' and later \`static\'/;
2232 next if /warning: assignment discards \`const\' from pointer target type/;
2233 next if /: At top level:$/;
2234 next if /: In function \`.*\':$/;
2235 next if /\`ghc_cc_ID\' defined but not used/;
2238 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2241 if ($return_val != 0) {
2242 if ($Using_dump_file) {
2243 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2246 &tidy_up_and_die($return_val, '');
2248 $Using_dump_file = 0;
2252 %************************************************************************
2254 \subsection[Driver-ghc-timing]{Emit nofibbish GHC timings}
2256 %************************************************************************
2258 NB: nearly the same as in @runstdtest@ script.
2261 sub process_ghc_timings {
2262 local($StatsFile) = "$Tmp_prefix.stat";
2263 local($SysSpecificTiming) = 'ghc';
2265 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2266 local($tot_live) = 0; # for calculating avg residency
2269 $tot_live += $1 if /^\s*\d+\s+\d+\s+\d+\.\d+\%\s+(\d+)\s+\d+\.\d+\%/;
2271 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2273 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2274 $MaxResidency = $1; $ResidencySamples = $2;
2277 $GCs = $1 if /^\s*([0-9,]+) garbage collections? performed/;
2279 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2280 $InitTime = $1; $InitElapsed = $2;
2281 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2282 $MutTime = $1; $MutElapsed = $2;
2283 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2284 $GcTime = $1; $GcElapsed = $2;
2287 close(STATS) || die "Failed when closing $StatsFile\n";
2288 if ( defined($ResidencySamples) && $ResidencySamples > 0 ) {
2289 $AvgResidency = int ($tot_live / $ResidencySamples) ;
2292 # warn about what we didn't find
2293 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2294 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2295 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2296 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2297 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2298 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2299 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2300 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2302 # things we didn't necessarily expect to find
2303 $MaxResidency = 0 unless defined($MaxResidency);
2304 $AvgResidency = 0 unless defined($AvgResidency);
2305 $ResidencySamples = 0 unless defined($ResidencySamples);
2308 $BytesAlloc =~ s/,//g;
2309 $MaxResidency =~ s/,//g;
2311 $InitTime =~ s/,//g;
2312 $InitElapsed =~ s/,//g;
2314 $MutElapsed =~ s/,//g;
2316 $GcElapsed =~ s/,//g;
2318 # print out what we found
2319 print STDERR "<<$SysSpecificTiming: ",
2320 "$BytesAlloc bytes, $GCs GCs, $AvgResidency/$MaxResidency avg/max bytes residency ($ResidencySamples samples), $InitTime INIT ($InitElapsed elapsed), $MutTime MUT ($MutElapsed elapsed), $GcTime GC ($GcElapsed elapsed)",
2321 " :$SysSpecificTiming>>\n";
2328 %************************************************************************
2330 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2332 %************************************************************************
2336 local($to_do) = "\n$Rm $Tmp_prefix*";
2337 if ( $Tmp_prefix !~ /^\s*$/ ) {
2338 print STDERR "$to_do\n" if $Verbose;
2343 sub tidy_up_and_die {
2344 local($return_val, $msg) = @_;
2346 # delete any files to tidy
2347 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2348 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2352 exit (($return_val == 0) ? 0 : 1);
2356 %************************************************************************
2358 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2360 %************************************************************************
2362 Some command-line arguments take an argument, e.g.,
2363 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2364 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2365 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2367 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2368 gobble the second argument (and probably set the heapsize to something
2372 local(*Args, $option, $rest_of_arg) = @_;
2375 return($rest_of_arg);
2376 } elsif ($#Args >= 0) {
2377 local($temp) = $Args[0]; shift(@Args);
2380 print STDERR "$Pgm: no argument following $option option\n";
2391 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2393 foreach $f ( @HsC_antiflags ) {
2394 return(0) if $flag eq $f;
2396 # foreach $f ( @HsC_flags ) {
2397 # return(0) if $flag eq $f;
2402 sub squashHscFlag { # pretty terrible
2406 foreach $f ( @HsC_flags ) {
2407 if ($flag eq $f) { $f = ''; }
2415 foreach $f ( @flags ) {
2416 push( @HsC_flags, $f ) if &isntAntiFlag($f);
2421 Source files may have {-# OPTIONS ... #-} pragmas at the top, containing
2422 command line options we want to append to collection of commands specified
2423 directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell
2424 file for any such pragmas:
2427 sub check_for_source_options {
2428 local($file,$ifile) = @_;
2429 local($comment_start,$comment_end);
2431 if ($ifile =~ /\.hc$/ ||
2434 $ifile =~ /_s$/ ) { # `Real' C intermediate
2435 $comment_start = "/\\*";
2436 $comment_end = "\\*/";
2437 } else { # Assume it is a file containing Haskell source
2438 $comment_start = "{-#";
2439 $comment_end = "#-}";
2442 open(FILE,$file) || return(1); # No big loss
2445 if ( /^${comment_start} OPTIONS (.*)${comment_end}$/ ) {
2446 # add the options found at the back of the command line.
2447 local(@entries) = split(/\s+/,$1);
2448 print STDERR "Found OPTIONS " . join(' ',@entries) . " in $file\n" if $Verbose;
2449 push(@File_options, @entries);
2451 elsif ( /^$/ ) { # ignore empty lines
2454 elsif ( /^#line.+$/ ) { # ignore comment lines
2457 else { # stop looking, something non-empty / not
2458 # ${comment_start} OPTIONS .. ${comment_end} encountered.
2459 close(FILE);return(0);
2468 We split the initial argv up into three arrays:
2474 the reason for doing so is to be able to deal
2475 with {-# OPTIONS #-} pragma in source files properly.
2481 arg: while($_ = $args[0]) {
2483 # sigh, we have to deal with these -option arg specially here.
2484 /^-(tmpdir|odir|o|isuf|osuf|hisuf|hisuf-prelude|odump|syslib)$/ &&
2485 do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; };
2486 /^-./ && do { push(@Cmd_opts, $_); next arg; };
2489 push(@Link_file, $_);
2491 push(@Input_file, $_);
2494 # input files must exist:
2496 print STDERR "$Pgm: input file doesn't exist: $_\n";
2504 When saving an intermediate file (.hc or .s) away, we
2505 have to prefix any OPTIONS found in the original source file.
2508 sub saveIntermediate {
2509 local ($final,$suffix,$tmp)= @_ ;
2512 # $final -- root of where to park ${final}.${suffix}
2513 # $tmp -- temporary file where hsc put the intermediate file.
2515 # Delete the old file
2516 $to_do = "$Rm ${final}.${suffix}"; &run_something($to_do, "Removing old .${suffix} file");
2518 if ( $#File_options >= 0 ) { # OPTIONS found in Haskell source unit
2519 # Add OPTION comment to the top of the generated .${suffix} file
2520 open(TEMP, "> ${final}.${suffix}") || &tidy_up_and_die(1,"Can't open ${final}.${suffix}\n");
2521 print TEMP "/* OPTIONS " . join(' ',@File_options) . " */\n";
2523 print STDERR "Prepending OPTIONS: " . join(' ',@File_options) . " to ${final}.${suffix}\n" if $Verbose;
2525 $to_do = "$Cat $tmp >> ${final}.${suffix}";
2526 &run_something($to_do, "Saving copy of .${suffix} file");
2533 Command-line processor
2539 # can't use getopt(s); what we want is too complicated
2541 arg: while($_ = $Args[0]) {
2544 #---------- help -------------------------------------------------------
2545 if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; }
2547 #-----------version ----------------------------------------------------
2548 /^--version$/ && do { print STDERR "${PROJECTNAME}, version ${PROJECTVERSION}, patchlevel ${PROJECTPATCHLEVEL}\n"; exit $Status; };
2550 #---------- verbosity and such -----------------------------------------
2551 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
2553 #---------- what phases are to be run ----------------------------------
2554 /^-recomp/ && do { $Do_recomp_chkr = 1; next arg; };
2556 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
2557 # change the global default:
2558 # we won't run cat; we'll run the real thing
2560 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
2562 # stop after generating C
2564 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
2565 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
2567 # leave out actual C generation (debugging) [also turns off interface gen]
2569 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
2570 # _do_ generate an interface; usually used as: -noC -hi
2572 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
2573 # don't generate an interface (even if generating C)
2575 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
2576 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
2577 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
2578 # show/disable diffs if the interface file changes
2580 /^-E$/ && do { push(@CcBoth_flags, '-E');
2581 $Only_preprocess_C = 1;
2582 $Do_as = 0; $Do_lnkr = 0; next arg; };
2583 # stop after preprocessing C
2584 /^-M$/ && do { $Only_generate_deps = 1; $Do_as = 0; $Do_lnkr = 0; next arg; };
2585 # only generate dependency information.
2586 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
2587 # stop after generating assembler
2589 /^-c$/ && do { $Do_lnkr = 0; next arg; };
2590 # stop after generating .o files
2592 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
2593 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
2594 # don't do consistency-checking after a link
2596 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', '');
2597 $Tmp_prefix = "$Tmp_prefix/ghc$$";
2598 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
2600 # use an alternate directory for temp files
2602 #---------- redirect output --------------------------------------------
2604 # -o <file>; applies to the last phase, whatever it is
2605 # "-o -" sends it to stdout
2606 # if <file> has a directory component, that dir must already exist
2608 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', '');
2610 # Hack, of the worst sort: don't do validation of
2611 # odir argument if you're using -M (dependency generation).
2613 if ( ! $Only_generate_deps && ! -d $Specific_output_dir) {
2614 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
2619 /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', '');
2620 if ($Specific_output_file ne '-'
2621 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
2622 local($dir_part) = $1;
2623 if (! -d $dir_part) {
2624 print STDERR "$Pgm: no such directory: $dir_part\n";
2630 # NB: -isuf not documented yet (because it doesn't work yet)
2631 /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', '');
2632 if ($Isuffix =~ /\./ ) {
2633 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
2638 /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', '');
2639 if ($Osuffix =~ /\./ ) {
2640 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
2645 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
2646 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', '');
2647 if ($Specific_hi_file ne '-'
2648 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
2649 local($dir_part) = $1;
2650 if (! -d $dir_part) {
2651 print STDERR "$Pgm: no such directory: $dir_part\n";
2657 # The suffix to use when looking for interface files
2658 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', '');
2659 if ($HiSuffix =~ /\./ ) {
2660 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
2664 # ToDo: remove, not a `normal' user thing to do (should be automatic)
2665 /^-hisuf-prelude$/ && do { $HiSuffix_prelude = &grab_arg_arg(*Args,'-hisuf-prelude', '');
2666 if ($HiSuffix =~ /\./ ) {
2667 print STDERR "$Pgm: -hisuf-prelude suffix shouldn't contain a .\n";
2671 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', '');
2672 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
2673 local($dir_part) = $1;
2674 if (! -d $dir_part) {
2675 print STDERR "$Pgm: no such directory: $dir_part\n";
2681 #-------------- scc & Profiling Stuff ----------------------------------
2683 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
2686 # generate auto SCCs on top level bindings
2687 # -auto-all = all top level bindings
2688 # -auto = only top level exported bindings
2689 $PROFauto = ( /-all/ )
2690 ? '-fauto-sccs-on-all-toplevs'
2691 : '-fauto-sccs-on-exported-toplevs';
2694 /^-caf-all/ && do { # generate individual CAF SCC annotations
2695 $PROFcaf = '-fauto-sccs-on-individual-cafs';
2698 /^-ignore-scc$/ && do {
2699 # forces ignore of scc annotations even if profiling
2700 $PROFignore_scc = '-W';
2703 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
2706 /^-unprof-scc-auto/ && do {
2707 # generate auto SCCs on top level bindings when not profiling.
2708 # Used to measure optimisation effects of presence of sccs.
2709 $UNPROFscc_auto = ( /-all/ )
2710 ? '-fauto-sccs-on-all-toplevs'
2711 : '-fauto-sccs-on-exported-toplevs';
2714 #--------- ticky/concurrent/parallel -----------------------------------
2715 # we sort out the details a bit later on
2717 /^-concurrent$/ && do { $CONCURing = 'c'; next arg; }; # concurrent Haskell
2718 /^-gransim$/ && do { $GRANing = 'g'; next arg; }; # GranSim
2719 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
2720 /^-parallel$/ && do { $PARing = 'p'; next arg; }; # parallel Haskell
2722 #-------------- "user ways" --------------------------------------------
2724 (/^-user-setup-([a-oA-Z])$/ ) &&
2726 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
2728 local($stuff) = $UserSetupOpts{$BuildTag};
2729 local(@opts) = split(/\s+/, $stuff);
2731 # feed relevant ops into the arg-processing loop (if any)
2732 unshift(@Args, @opts) if $#opts >= 0;
2736 #---------- set search paths for libraries and things ------------------
2738 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
2739 # prepends the items to the list); -I is for including C .h files.
2741 /^-i$/ && do { @Import_dir = (); # import path cleared!
2742 @SysImport_dir = ();
2743 print STDERR "WARNING: import paths cleared by `-i'\n";
2746 /^-i(.*)/ && do { local(@new_items)
2747 = split( /:/, &grab_arg_arg(*Args,'-i', $1));
2748 unshift(@Import_dir, @new_items);
2751 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; };
2752 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; };
2753 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; };
2755 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1);
2756 print STDERR "$Pgm: no such system library (-syslib): $syslib\n",
2757 $Status++ unless $syslib =~ /^(hbc|ghc|posix|contrib)$/;
2759 unshift(@SysImport_dir,
2761 ? "$InstSysLibDir/$syslib/imports"
2762 : "$TopPwd/hslibs/$syslib/src");
2764 if ( ${INSTALLING} ) {
2765 push(@SysLibrary_dir,
2766 ("$InstSysLibDir"));
2768 push(@SysLibrary_dir,
2769 ("$TopPwd/hslibs/$syslib"
2770 ,"$TopPwd/hslibs/$syslib/cbits"));
2773 push(@SysLibrary, "-lHS$syslib");
2774 push(@SysLibrary, "-lHS${syslib}_cbits")
2775 unless $syslib eq 'contrib'; #HACK! it has no cbits
2779 #=======================================================================
2780 # various flags that we can harmlessly send to one program or another
2781 # (we will later "reclaim" some of the compiler ones now sent to gcc)
2782 #=======================================================================
2784 #---------- this driver itself (ghc) -----------------------------------
2785 # these change what executable is run for each phase:
2786 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
2787 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
2788 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
2789 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
2790 /^-pgma(.*)$/ && do { $As = $1; next arg; };
2791 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
2792 /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; };
2794 #---------- the get-anything-through opts (all pgms) -------------------
2795 # these allow arbitrary option-strings to go to any phase:
2796 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
2797 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
2798 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
2799 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
2800 /^-optcpp(.*)$/ && do { push(@Cpp_define, $1); next arg; };
2801 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
2802 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
2803 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
2804 /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; };
2806 #---------- Haskell C pre-processor (hscpp) ----------------------------
2807 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; };
2808 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; };
2810 /^-genSPECS/ && do { $Cpp_flag_set = 1;
2811 $genSPECS_flag = $_;
2814 #---------- post-Haskell "assembler"------------------------------------
2815 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
2816 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
2818 #---------- Haskell compiler (hsc) -------------------------------------
2820 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
2821 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
2823 /^-fhaskell-1\.3$/ && do { next arg; }; # a no-op right now
2825 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
2827 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
2828 # don't do stack checking using page fault `trick'.
2830 /^-fstack-check$/ && do { $StkChkByPageFaultOK = 0; next arg; };
2832 # have the compiler proper generate concurrent code,
2833 # really only used when you want to configure your own
2834 # special user compilation way. (Use -concurrent when
2835 # compiling `Concurrent Haskell' programs).
2837 # (ditto for -fgransim, fscc-profiling and -fticky-ticky)
2839 /^-fconcurrent$/ && do { push(@HsC_flags,$_); next arg; };
2840 /^-fscc-profiling$/ && do { push(@HsC_flags,$_); next arg; };
2841 /^-fticky-ticky$/ && do { push(@HsC_flags,$_); next arg; };
2842 /^-fgransim$/ && do { push(@HsC_flags,$_); next arg; };
2844 /^-user-prelude-force/ && do { # ignore if not -user-prelude
2847 /^-split-objs/ && do {
2848 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|sparc)-/ ) {
2850 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
2855 push(@HsC_flags, "-fglobalise-toplev-names");
2856 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
2858 require('ghc-split.prl')
2859 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
2864 && do { push(@HsC_flags, $_);
2865 push(@HsP_flags, '-N');
2867 # push(@HsC_flags, '-fshow-import-specs');
2871 /^-fspeciali[sz]e-unboxed$/
2872 && do { $Oopt_DoSpecialise = '-fspecialise';
2873 $Oopt_SpecialiseUnboxed = '-fspecialise-unboxed';
2876 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
2877 /^-fno-speciali[sz]e$/
2878 && do { $Oopt_DoSpecialise = ''; next arg; };
2881 # Now the foldr/build options, which are *on* by default (for -O).
2884 && do { $Oopt_FoldrBuild = 1;
2885 $Oopt_FB_Support = '-fdo-arity-expand';
2889 /^-fno-foldr-build$/
2890 && do { $Oopt_FoldrBuild = 0;
2891 $Oopt_FB_Support = '';
2894 /^-fno-foldr-build-rule$/
2895 && do { $Oopt_FoldrBuild = 0;
2898 /^-fno-enable-tech$/
2899 && do { $Oopt_FB_Support = '';
2902 /^-fno-snapback-to-append$/
2903 && do { $Oopt_FoldrBuildInline .= ' -fdo-not-fold-back-append ';
2906 # --------------- Renamer -------------
2909 /^-fno-tycon-pruning$/
2910 && do { push(@HsC_flags, $_); next arg; };
2914 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
2915 /^-fvia-C$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
2919 /^(-funfolding-use-threshold)(.*)$/
2920 && do { $Oopt_UnfoldingUseThreshold = $1 . &grab_arg_arg(*Args,$1, $2);
2923 /^(-fmax-simplifier-iterations)(.*)$/
2924 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2);
2927 /^-fno-pedantic-bottoms$/
2928 && do { $Oopt_PedanticBottoms = ''; next arg; };
2930 /^-fdo-monad-eta-expansion$/
2931 && do { $Oopt_MonadEtaExpansion = $_; next arg; };
2933 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
2934 && do { push(@HsC_flags, $_); next arg; };
2936 /^(-freturn-in-regs-threshold)(.*)$/
2937 && do { local($what) = $1;
2938 local($num) = &grab_arg_arg(*Args,$what, $2);
2939 if ($num < 2 || $num > 8) {
2940 die "Bad experimental flag: $_\n";
2942 $HscOut = '-C='; # force using C compiler
2943 push(@HsC_flags, "$what$num");
2944 push(@CcRegd_flags, "-D__STG_REGS_AVAIL__=$num");
2948 # --------------- Warnings etc. ------
2950 /^-f(show-import-specs)/
2951 && do { push(@HsC_flags, $_); next arg; };
2953 # for now, just -fwarn-name-shadowing
2954 /^-fwarn-(.*)$/ && do { push(@HsC_flags, $_); next arg; };
2955 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
2956 &squashHscFlag("-f$1");
2959 # --------------- platform specific flags (for gcc mostly) ----------------
2961 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes,
2962 # for 2.6.x..?, does not apply for 2.7.2
2964 unshift(@CcBoth_flags, ( $_ ));
2967 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
2968 && do { # for GCC for SPARCs
2969 unshift(@CcBoth_flags, ( $_ ));
2972 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
2973 $StolenX86Regs = $1;
2976 #*************** ... and lots of debugging ones (form: -d* )
2978 # -d(no-)core-lint is done this way so it is turn-off-able.
2979 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
2980 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
2981 # Ditto for STG lint
2982 /^-dstg-lint/ && do { $StgLint = '-dstg-lint'; next arg; };
2983 /^-dno-stg-lint/ && do { $StgLint = ''; next arg; };
2985 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
2986 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
2987 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
2988 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
2989 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
2990 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
2991 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
2993 #*************** ... and now all these -R* ones for its runtime system...
2995 /^-Rscale-sizes?(.*)/ && do {
2996 $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1);
2999 /^(-H|-Rmax-heapsize)(.*)/ && do {
3000 local($heap_size) = &grab_arg_arg(*Args,$1, $2);
3001 if ($heap_size =~ /(\d+)[Kk]$/) {
3002 $heap_size = $1 * 1000;
3003 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
3004 $heap_size = $1 * 1000 * 1000;
3005 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
3006 $heap_size = $1 * 1000 * 1000 * 1000;
3008 if ($heap_size <= 0) {
3009 print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n";
3010 $Specific_heap_size = 0;
3012 # if several heap sizes given, take the largest...
3013 } elsif ($heap_size >= $Specific_heap_size) {
3014 $Specific_heap_size = $heap_size;
3016 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n";
3020 /^-(K|Rmax-(stk|stack)size)(.*)/ && do {
3022 local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3);
3023 if ($stk_size =~ /(\d+)[Kk]$/) {
3024 $stk_size = $1 * 1000;
3025 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
3026 $stk_size = $1 * 1000 * 1000;
3027 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
3028 $stk_size = $1 * 1000 * 1000 * 1000;
3030 if ($stk_size <= 0) {
3031 print STDERR "$Pgm: resetting stack-size to zero!!! $stk_size\n";
3032 $Specific_stk_size = 0;
3034 # if several stack sizes given, take the largest...
3035 } elsif ($stk_size >= $Specific_stk_size) {
3036 $Specific_stk_size = $stk_size;
3038 print STDERR "$Pgm: ignoring stack-size-setting option ($flag $stk_size)...not the largest seen\n";
3042 /^-Rgc-stats$/ && do { $CollectingGCstats++;
3043 # the two RTSs do this diff ways; we will try to compensate
3046 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
3048 #---------- C high-level assembler (gcc) -------------------------------
3049 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
3051 # -dgcc-lint is a useful way of making GCC very fussy.
3052 # From alan@spri.levels.unisa.edu.au (Alan Modra).
3053 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
3054 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
3055 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
3057 # inject "#include <wurble>" into the compiler's C output!
3059 /^-#include(.*)/ && do {
3060 local($to_include) = &grab_arg_arg(*Args,'-#include', $1);
3061 push(@CcInjects, "#include $to_include\n");
3064 #---------- Linker (gcc, really) ---------------------------------------
3066 /^-static$/ && do { push(@Ld_flags, $_); next arg; };
3068 #---------- mixed cc and linker magic ----------------------------------
3069 # this optimisation stuff is finally sorted out later on...
3071 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
3073 /^-O[1-2]?$/ && do {
3074 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
3075 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
3077 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
3080 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
3082 /^-Ofile(.*)/ && do {
3084 local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1);
3085 @HsC_minusO3_flags = ();
3087 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
3090 s/\#.*//; # death to comments
3091 s/[ \t]+//g; # death to whitespace
3092 next if /^$/; # ditto, blank lines
3093 s/([()*{}])/\\$1/g; # protect shell metacharacters
3095 push(@CcBoth_flags, $1);
3097 push(@HsC_minusO3_flags, $_);
3103 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
3104 # in the consistency info
3108 #---------- linking .a file --------------------------------------------
3110 /^-Main(.*)/ && do {
3111 # specifies main or mainPrimIO to be linked
3115 #---------- catch unrecognized flags -----------------------------------
3118 print STDERR "$Pgm: unrecognised option: $_\n";
3124 } # end of processArgs