2 % (c) The GRASP/AQUA Project, Glasgow University, 1992-1996
4 % *** MSUB does some substitutions here ***
8 This is the driver script for the Glasgow Haskell compilation system.
9 It is written in \tr{perl}. The first section includes a long
10 ``usage'' message that describes how the driver is supposed to work.
12 %************************************************************************
14 \section[Driver-usage]{Usage message}
16 %************************************************************************
19 ($Pgm = $0) =~ s|.*/||;
20 $ShortUsage = "\nUsage: For basic information, try the `-help' option.\n";
21 $LongUsage = "\n" . <<EOUSAGE;
22 Use of the Glorious Haskell Compilation System driver:
24 $Pgm [command-line-options-and-input-files]
26 ------------------------------------------------------------------------
27 This driver ($Pgm) guides each input file through (some of the)
28 possible phases of a compilation:
30 - unlit: extract code from a "literate program"
31 - hscpp: run code through the C pre-processor (if -cpp flag given)
32 - hsc: run the Haskell compiler proper
33 - gcc: run the C compiler (if compiling via C)
34 - as: run the assembler
37 For each input file, the phase to START with is determined by the
39 - .lhs literate Haskell: unlit
40 - .hs illiterate Haskell: hsc
41 - .hc C from the Haskell compiler: gcc
42 - .c C not from the Haskell compiler: gcc
43 - .s assembly language: as
44 - other passed directly to the linker: ld
46 If no files are given on the command line, input is taken from
47 standard input, and processing is as for an .hs file. (All output is
48 to stdout or stderr, however).
50 The phase at which to STOP processing is determined by a command-line
52 -C stop after generating C (.hc output)
53 -E stop after generating preprocessed C (.i output)
54 -S stop after generating assembler (.s output)
55 -c stop after generating object files (.o output)
57 Other commonly-used options are:
59 -O An `optimising' package of compiler flags, for faster code
61 -prof Compile for cost-centre profiling
62 (add -auto for automagic cost-centres on top-level functions)
64 -fglasgow-exts Allow Glasgow extensions (unboxed types, etc.)
66 -H14m Increase compiler's heap size
68 The User's Guide has more information about GHC's *many* options.
70 Given the above, here are some TYPICAL invocations of $Pgm:
72 # compile a Haskell module to a .o file, optimising:
74 # compile a Haskell module to C (a .hc file), using a bigger heap:
75 % $Pgm -C -H16m Foo.hs
76 # compile Haskell-produced C (.hc) to assembly language:
78 # link three .o files into an executable called "test":
79 % $Pgm -o test Foo.o Bar.o Baz.o
80 ------------------------------------------------------------------------
84 %************************************************************************
86 \section[Driver-init]{Initialisation}
88 %************************************************************************
90 Establish what executables to run for the various phases (all the
91 \tr{$(FOO)} make-variables are \tr{msub}bed for from the
92 \tr{Makefile}), what the default options are for those phases, and
93 other similar boring stuff.
95 select(STDERR); $| = 1; select(STDOUT); # no STDERR buffering, please.
97 $HostPlatform = '$(HOSTPLATFORM)';
98 $TargetPlatform = '$(TARGETPLATFORM)';
100 #------------------------------------------------------------------------
101 # If you are adjusting paths by hand for a binary GHC distribution,
102 # de-commenting the line to set GLASGOW_HASKELL_ROOT should do.
103 # Or you can leave it as is, and set the environment variable externally.
104 #------------------------------------------------------------------------
105 # $ENV{'GLASGOW_HASKELL_ROOT'} = '/some/absolute/path/name';
107 if (! $ENV{'GLASGOW_HASKELL_ROOT'}) { # good -- death to environment variables
108 $TopPwd = '$(TOP_PWD)';
109 $InstLibDirGhc = '$(INSTLIBDIR_GHC)';
110 $InstDataDirGhc = '$(INSTDATADIR_GHC)';
112 $TopPwd = $ENV{'GLASGOW_HASKELL_ROOT'};
114 if ('$(INSTLIBDIR_GHC)' =~ /.*(\/lib\/ghc\/\d\.\d\d\/[^-]-[^-]-[^-]\/.*)/) {
115 $InstLibDirGhc = $ENV{'GLASGOW_HASKELL_ROOT'} . $1;
117 print STDERR "GLASGOW_HASKELL_ROOT environment variable is set;\nBut can't untangle $(INSTLIBDIR_GHC).\n(Installation error)\n";
121 if ('$(INSTDATADIR_GHC)' =~ /.*(\/lib\/ghc\/\d\.\d\d\/.*)/) {
122 $InstDataDirGhc = $ENV{'GLASGOW_HASKELL_ROOT'} . $2;
124 print STDERR "GLASGOW_HASKELL_ROOT environment variable is set;\nBut can't untangle $(INSTDATADIR_GHC).\n(Installation error)\n";
129 if ( $(INSTALLING) ) {
130 $InstSysLibDir = $InstDataDirGhc;
131 $InstSysLibDir =~ s/\/ghc\//\/hslibs\//;
133 $InstSysLibDir = "$TopPwd/hslibs";
136 $Status = 0; # just used for exit() status
139 # set up signal handler
140 sub quit_upon_signal { &tidy_up_and_die(1, ''); }
141 $SIG{'INT'} = 'quit_upon_signal';
142 $SIG{'QUIT'} = 'quit_upon_signal';
144 # where to get "require"d .prl files at runtime (poor man's dynamic loading)
145 # (use LIB, not DATA, because we can't be sure of arch-independence)
146 @INC = ( ( $(INSTALLING) ) ? $InstLibDirGhc
147 : "$TopPwd/$(CURRENT_DIR)" );
149 if ( $ENV{'TMPDIR'} ) { # where to make tmp file names
150 $Tmp_prefix = ($ENV{'TMPDIR'} . "/ghc$$");
152 $Tmp_prefix ="$(TMPDIR)/ghc$$";
153 $ENV{'TMPDIR'} = '$(TMPDIR)'; # set the env var as well
156 @Files_to_tidy = (); # files we nuke in the case of abnormal termination
158 $Unlit = ( $(INSTALLING) ) ? "$InstLibDirGhc/unlit"
159 : "$TopPwd/$(CURRENT_DIR)/$(GHC_UNLIT)";
164 $Diff = '$(CONTEXT_DIFF)';
169 $HsCpp = # but this is re-set to "cat" (after options) if -cpp not seen
170 ( $(INSTALLING) ) ? "$InstLibDirGhc/hscpp"
171 : "$TopPwd/$(CURRENT_DIR)/$(GHC_HSCPP)";
173 $genSPECS_flag = ''; # See ../utils/hscpp/hscpp.prl
175 $HsC = ( $(INSTALLING) ) ? "$InstLibDirGhc/hsc"
176 : "$TopPwd/$(CURRENT_DIR)/$(GHC_HSC)";
178 $SysMan = ( $(INSTALLING) ) ? "$InstLibDirGhc/SysMan"
179 : "$TopPwd/$(CURRENT_DIR)/$(GHC_SYSMAN)";
181 # HsC_rts_flags: if we want to talk to the LML runtime system
182 # NB: we don't use powers-of-2 sizes, because this may do
183 # terrible things to cache behavior.
184 $Specific_heap_size = 6 * 1000 * 1000;
185 $Specific_stk_size = 1000 * 1000;
186 $Scale_sizes_by = 1.0;
189 @HsP_flags = (); # these are the flags destined solely for
190 # the flex/yacc parser
195 The optimisations/etc to be done by the compiler are {\em normally}
196 expressed with a \tr{-O} (or \tr{-O2}) flag, or by its absence.
199 $OptLevel = 0; # no -O == 0; -O == 1; -O2 == 2; -Ofile == 3
200 $MinusO2ForC = 0; # set to 1 if -O2 should be given to C compiler
201 $StolenX86Regs = 4; # **HACK*** of the very worst sort
205 These variables represent parts of the -O/-O2/etc ``templates,''
206 which are filled in later, using these.
207 These are the default values, which may be changed by user flags.
209 $Oopt_UnfoldingUseThreshold = '-funfolding-use-threshold8';
210 $Oopt_MaxSimplifierIterations = '-fmax-simplifier-iterations5';
211 $Oopt_PedanticBottoms = '-fpedantic-bottoms'; # ON by default
212 $Oopt_MonadEtaExpansion = '';
213 $Oopt_FinalStgProfilingMassage = '';
215 $Oopt_SpecialiseUnboxed = '';
216 $Oopt_DoSpecialise = ''; # ToDo:LATER: '-fspecialise';
217 $Oopt_FoldrBuild = 0; # *Off* by default!
218 $Oopt_FB_Support = ''; # was '-fdo-arity-expand';
219 #$Oopt_FoldrBuildWW = 0; # Off by default
220 $Oopt_FoldrBuildInline = ''; # was '-fdo-inline-foldr-build';
223 Things to do with C compilers/etc:
225 $CcRegd = '$(GHC_OPT_HILEV_ASM)';
226 @CcBoth_flags = ('-S'); # flags for *any* C compilation
229 # GCC flags: those for all files, those only for .c files; those only for .hc files
230 @CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__');
231 @CcRegd_flags_c = ();
232 @CcRegd_flags_hc = ();
234 $As = ''; # "assembler" is normally GCC
237 $Lnkr = ''; # "linker" is normally GCC
240 # 'nm' is used for consistency checking (ToDo: mk-world-ify)
241 # ToDo: check the OS or something ("alpha" is surely not the crucial question)
242 $Nm = ($TargetPlatform =~ /^alpha-/) ? 'nm -B' : 'nm';
245 What options \tr{-user-setup-a} turn into (user-defined ``packages''
246 of options). Note that a particular user-setup implies a particular
247 Prelude ({\em including} its interface file(s)).
249 $BuildTag = ''; # default is sequential build w/ Appel-style GC
251 %BuildAvail = ('', '$(Build_normal)',
255 '_mc', '$(Build_mc)',
256 '_mr', '$(Build_mr)',
257 '_mt', '$(Build_mt)',
258 '_mp', '$(Build_mp)',
259 '_mg', '$(Build_mg)',
260 '_2s', '$(Build_2s)',
261 '_1s', '$(Build_1s)',
262 '_du', '$(Build_du)',
279 '_B', '$(Build_B)' );
281 %BuildDescr = ('', 'normal sequential',
283 '_t', 'ticky-ticky profiling',
284 #OLD: '_u', 'unregisterized (using portable C only)',
286 '_mr', 'profiled concurrent',
287 '_mt', 'ticky concurrent',
292 '_du', 'dual-mode GC',
309 '_B', 'user way B' );
311 # these are options that are "fed back" through the option processing loop
312 %UserSetupOpts = ('_a', '$(GHC_BUILD_OPTS_a)',
313 '_b', '$(GHC_BUILD_OPTS_b)',
314 '_c', '$(GHC_BUILD_OPTS_c)',
315 '_d', '$(GHC_BUILD_OPTS_d)',
316 '_e', '$(GHC_BUILD_OPTS_e)',
317 '_f', '$(GHC_BUILD_OPTS_f)',
318 '_g', '$(GHC_BUILD_OPTS_g)',
319 '_h', '$(GHC_BUILD_OPTS_h)',
320 '_i', '$(GHC_BUILD_OPTS_i)',
321 '_j', '$(GHC_BUILD_OPTS_j)',
322 '_k', '$(GHC_BUILD_OPTS_k)',
323 '_l', '$(GHC_BUILD_OPTS_l)',
324 '_m', '$(GHC_BUILD_OPTS_m)',
325 '_n', '$(GHC_BUILD_OPTS_n)',
326 '_o', '$(GHC_BUILD_OPTS_o)',
327 '_A', '$(GHC_BUILD_OPTS_A)',
328 '_B', '$(GHC_BUILD_OPTS_B)',
330 # the GC ones don't have any "fed back" options
335 # per-build code fragments which are eval'd
336 %EvaldSetupOpts = ('', '', # this one must *not* be set!
338 # profiled sequential
339 '_p', 'push(@HsC_flags, \'-fscc-profiling\');
340 push(@CcBoth_flags, \'-DPROFILING\');',
343 #push(@CcBoth_flags, '-DPROFILING_DETAIL_COUNTS');
345 # ticky-ticky sequential
346 '_t', 'push(@HsC_flags, \'-fticky-ticky\');
347 push(@CcBoth_flags, \'-DTICKY_TICKY\');',
349 #OLD: # unregisterized (ToDo????)
353 '_mc', '$StkChkByPageFaultOK = 0;
354 push(@HsC_flags, \'-fconcurrent\');
355 push(@HsCpp_flags,\'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\');
356 push(@Cpp_define, \'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\');',
358 # profiled concurrent
359 '_mr', '$StkChkByPageFaultOK = 0;
360 push(@HsC_flags, \'-fconcurrent\', \'-fscc-profiling\');
361 push(@HsCpp_flags,\'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\');
362 push(@Cpp_define, \'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\', \'-DPROFILING\');',
364 # ticky-ticky concurrent
365 '_mt', '$StkChkByPageFaultOK = 0;
366 push(@HsC_flags, \'-fconcurrent\', \'-fticky-ticky\');
367 push(@HsCpp_flags,\'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\');
368 push(@Cpp_define, \'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\', \'-DTICKY_TICKY\');',
371 '_mp', '$StkChkByPageFaultOK = 0;
372 push(@HsC_flags, \'-fconcurrent\');
373 push(@HsCpp_flags,\'-D__PARALLEL_HASKELL__\', \'-DPAR\');
374 push(@Cpp_define, \'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\', \'-DPAR\');',
377 '_mg', '$StkChkByPageFaultOK = 0;
378 push(@HsC_flags, \'-fconcurrent\', \'-fgransim\');
379 push(@HsCpp_flags,\'-D__GRANSIM__\', \'-DGRAN\');
380 push(@Cpp_define, \'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\', \'-DGRAN\');',
382 '_2s', 'push (@CcBoth_flags, \'-DGC2s\');',
383 '_1s', 'push (@CcBoth_flags, \'-DGC1s\');',
384 '_du', 'push (@CcBoth_flags, \'-DGCdu\');',
386 '_a', '', # these user-way guys should not be set!
405 Import/include directories (\tr{-I} options) are sufficiently weird to
406 require special handling.
408 @Import_dir = ('.'); #-i things
409 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
411 @SysImport_dir = ( $(INSTALLING) )
412 ? ( "$InstDataDirGhc/imports" )
413 : ( "$TopPwd/$(CURRENT_DIR)/$(GHC_LIBSRC)/ghc"
414 , "$TopPwd/$(CURRENT_DIR)/$(GHC_LIBSRC)/glaExts"
415 , "$TopPwd/$(CURRENT_DIR)/$(GHC_LIBSRC)/required"
416 , "$TopPwd/$(CURRENT_DIR)/$(GHC_LIBSRC)/concurrent" );
418 # We need to look in ghc/ and glaExts/ when searching for implicitly needed .hi files, but
419 # we should really *not* look there for explicitly imported modules.
421 $GhcVersionInfo = int ($(PROJECTVERSION) * 100);
422 $Haskell1Version = 3; # i.e., Haskell 1.3
425 @UserLibrary_dir= (); #-L things;...
426 @UserLibrary = (); #-l things asked for by the user
428 @SysLibrary_dir = ( ( $(INSTALLING) ) #-syslib things supplied by the system
430 : ( "$TopPwd/$(CURRENT_DIR)/$(GHC_RUNTIMESRC)"
431 , "$TopPwd/$(CURRENT_DIR)/$(GHC_RUNTIMESRC)/gmp"
432 , "$TopPwd/$(CURRENT_DIR)/$(GHC_LIBSRC)"
433 , "$TopPwd/$(CURRENT_DIR)/$(GHC_LIBSRC)/cbits"
436 @SysLibrary = (); # will be built up as we go along
438 $TopClosureFile # defaults to 1.2 one; will be mangled later
439 = ( $(INSTALLING) ) ? "$InstLibDirGhc/TopClosureXXXX.o"
440 : "$TopPwd/$(CURRENT_DIR)/$(GHC_RUNTIMESRC)/main/TopClosureXXXX.o";
443 We are given a list of files with various presumably-known suffixes
444 (unknown-suffix files go straight to the linker). For each file, we
445 begin by assuming that we'll run every phase over it. However: (1)
446 global flags (\tr{-c}, \tr{-S}, etc.) tell us not to run any phase
447 past a certain point; and (2) the file's suffix tells us what phase to
448 start with. Linking is weird and kept track of separately.
450 Here are the initial defaults applied to all files:
452 $Cpp_flag_set = 0; # (hack)
453 $Only_preprocess_C = 0; # pretty hackish
454 $PostprocessCcOutput = 0;
456 # native code-gen or via C?
457 $HaveNativeCodeGen = $(GhcWithNativeCodeGen);
458 $HscOut = '-C='; # '-C=' ==> .hc output; '-S=' ==> .s output; '-N=' ==> neither
460 if $HaveNativeCodeGen && $TargetPlatform =~ /^(alpha|sparc)-/; #ToDo: add |i386 !
461 $ProduceHi = '-hifile=';
465 $CollectingGCstats = 0;
466 $CollectGhcTimings = 0;
467 $DEBUGging = ''; # -DDEBUG and all that it entails (um... not really)
468 $PROFing = ''; # set to p or e if profiling
469 $PROFgroup = ''; # set to group if an explicit -Ggroup specified
470 $PROFauto = ''; # set to relevant hsc flag if -auto or -auto-all
471 $PROFcaf = ''; # set to relevant hsc flag if -caf-all
472 $PROFignore_scc = ''; # set to relevant parser flag if explicit sccs ignored
473 $UNPROFscc_auto = ''; # set to relevant hsc flag if forcing auto sccs without profiling
474 $TICKYing = ''; # set to t if compiling for ticky-ticky profiling
475 $PARing = ''; # set to p if compiling for PAR
476 $CONCURing = ''; # set to c if compiling for CONCURRENT
477 $GRANing = ''; # set to g if compiling for GRAN
478 $StkChkByPageFaultOK = 1; # may be set to 0 (false) for some builds
479 $Specific_output_dir = ''; # set by -odir <dir>
480 $Specific_output_file = ''; # set by -o <file>; "-" for stdout
481 $Specific_hi_file = ''; # set by -ohi <file>; "-" for stdout
482 $Specific_dump_file = ''; # set by -odump <file>; "-" for stdout
483 $Using_dump_file = 0;
485 $Osuffix = ''; # default: use the normal suffix for that kind of output
488 $Do_recomp_chkr = 0; # don't use the recompilatio checker unless asked
489 $Do_cc = -1; # a MAGIC indeterminate value; will be set to 1 or 0.
492 $Keep_hc_file_too = 0;
493 $Keep_s_file_too = 0;
494 $UseGhcInternals = 0; # if 1, may use GHC* modules
497 $Dump_parser_output = 0;
499 $Dump_asm_splitting_info = 0;
500 $NoImplicitPrelude = 0;
502 # and the list of files
505 # and files to be linked...
509 We inject consistency-checking information into \tr{.hc} files (both
510 when created by the Haskell compiler and when compiled by the C
511 compiler), so that we can check that an executable is made from
512 consistently-built pieces. (The check is normally done just after
513 linking.) The checking is done by introducing/munging
514 \tr{what(1)}-style strings. Anyway, here are the relevant global
515 variables and their defaults:
517 $LinkChk = 1; # set to 0 if the link check should *not* be done
519 # major & minor version numbers; major numbers must always agree;
520 # minor disagreements yield a warning.
521 $HsC_major_version = 30;
522 $HsC_minor_version = 0;
523 $Cc_major_version = 35;
524 $Cc_minor_version = 0;
526 # options: these must always agree
527 $HsC_consist_options = ''; # we record, in this order:
528 # Build tag; debugging?
529 $Cc_consist_options = ''; # we record, in this order:
530 # Build tag; debugging?
533 %************************************************************************
535 \section[Driver-parse-argv]{Munge the command-line options}
537 %************************************************************************
539 Now slurp through the arguments.
542 #---------- user defined prelude ---------------------------------------
544 if (grep(/^-user-prelude$/, @ARGV)) {
546 # If ARGV contains -user-prelude we are compiling a piece of
547 # prelude for the user, probably with additional specialise pragmas
549 # We strip out the -O -f and -user-prelude flags provided on
550 # the command line and add the ones used to compile the prelude
551 # ToDo: get these options from a common definition in mkworld
553 # We also enable any options forced through with -user-prelude-force
555 # Hey, Check out this grep statement ;-) (PS)
557 @ARGV = grep((!/^-O/ && !/^-f/ && !/^-user-prelude$/) || s/^-user-prelude-force//,
561 '-fcompiling-ghc-internals=???', # ToDo!!!!
563 '-fshow-pragma-name-errs',
564 '-fshow-import-specs',
570 print STDERR "ghc: -user-prelude options:\n", "@ARGV", "\n";
573 # can't use getopt(s); what we want is too complicated
574 arg: while($_ = $ARGV[0]) {
577 #---------- help -------------------------------------------------------
578 if (/^-\?$/ || /^-help$/) { print $LongUsage; exit $Status; }
580 #---------- verbosity and such -----------------------------------------
581 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
583 #---------- what phases are to be run ----------------------------------
584 /^-recomp/ && do { $Do_recomp_chkr = 1; next arg; };
586 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
587 # change the global default:
588 # we won't run cat; we'll run the real thing
590 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
592 # stop after generating C
594 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
595 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
597 # leave out actual C generation (debugging) [also turns off interface gen]
599 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
600 # _do_ generate an interface; usually used as: -noC -hi
602 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
603 # don't generate an interface (even if generating C)
605 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
606 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
607 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
608 # show/disable diffs if the interface file changes
610 /^-E$/ && do { push(@CcBoth_flags, '-E');
611 $Only_preprocess_C = 1;
612 $Do_as = 0; $Do_lnkr = 0; next arg; };
613 # stop after preprocessing C
615 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
616 # stop after generating assembler
618 /^-c$/ && do { $Do_lnkr = 0; next arg; };
619 # stop after generating .o files
621 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
622 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
623 # don't do consistency-checking after a link
625 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg('-tmpdir', '');
626 $Tmp_prefix = "$Tmp_prefix/ghc$$";
627 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
629 # use an alternate directory for temp files
631 #---------- redirect output --------------------------------------------
633 # -o <file>; applies to the last phase, whatever it is
634 # "-o -" sends it to stdout
635 # if <file> has a directory component, that dir must already exist
637 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg('-odir', '');
638 if (! -d $Specific_output_dir) {
639 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
644 /^-o$/ && do { $Specific_output_file = &grab_arg_arg('-o', '');
645 if ($Specific_output_file ne '-'
646 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
647 local($dir_part) = $1;
648 if (! -d $dir_part) {
649 print STDERR "$Pgm: no such directory: $dir_part\n";
655 # NB: -isuf not documented yet (because it doesn't work yet)
656 /^-isuf$/ && do { $Isuffix = &grab_arg_arg('-isuf', '');
657 if ($Isuffix =~ /\./ ) {
658 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
663 /^-osuf$/ && do { $Osuffix = &grab_arg_arg('-osuf', '');
664 if ($Osuffix =~ /\./ ) {
665 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
670 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
671 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg('-ohi', '');
672 if ($Specific_hi_file ne '-'
673 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
674 local($dir_part) = $1;
675 if (! -d $dir_part) {
676 print STDERR "$Pgm: no such directory: $dir_part\n";
682 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg('-hisuf', '');
683 if ($HiSuffix =~ /\./ ) {
684 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
688 /^-hisuf-prelude$/ && do { # as esoteric as they come...
689 $SysHiSuffix = &grab_arg_arg('-hisuf-prelude', '');
690 if ($SysHiSuffix =~ /\./ ) {
691 print STDERR "$Pgm: -hisuf-prelude suffix shouldn't contain a .\n";
696 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg('-odump', '');
697 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
698 local($dir_part) = $1;
699 if (! -d $dir_part) {
700 print STDERR "$Pgm: no such directory: $dir_part\n";
706 #-------------- scc & Profiling Stuff ----------------------------------
708 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
711 # generate auto SCCs on top level bindings
712 # -auto-all = all top level bindings
713 # -auto = only top level exported bindings
714 $PROFauto = ( /-all/ )
715 ? '-fauto-sccs-on-all-toplevs'
716 : '-fauto-sccs-on-exported-toplevs';
719 /^-caf-all/ && do { # generate individual CAF SCC annotations
720 $PROFcaf = '-fauto-sccs-on-individual-cafs';
723 /^-ignore-scc$/ && do {
724 # forces ignore of scc annotations even if profiling
725 $PROFignore_scc = '-W';
728 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
731 /^-unprof-scc-auto/ && do {
732 # generate auto SCCs on top level bindings when not profiling
733 # used to measure optimisation effects of presence of sccs
734 $UNPROFscc_auto = ( /-all/ )
735 ? '-fauto-sccs-on-all-toplevs'
736 : '-fauto-sccs-on-exported-toplevs';
739 #--------- ticky/concurrent/parallel -----------------------------------
740 # we sort out the details a bit later on
742 /^-concurrent$/ && do { $CONCURing = 'c'; next arg; }; # concurrent Haskell
743 /^-gransim$/ && do { $GRANing = 'g'; next arg; }; # GranSim
744 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
745 /^-parallel$/ && do { $PARing = 'p'; next arg; } ; # parallel Haskell
747 #-------------- "user ways" --------------------------------------------
749 (/^-user-setup-([a-oA-Z])$/
750 || /^$(GHC_BUILD_FLAG_a)$/
751 || /^$(GHC_BUILD_FLAG_b)$/
752 || /^$(GHC_BUILD_FLAG_c)$/
753 || /^$(GHC_BUILD_FLAG_d)$/
754 || /^$(GHC_BUILD_FLAG_e)$/
755 || /^$(GHC_BUILD_FLAG_f)$/
756 || /^$(GHC_BUILD_FLAG_g)$/
757 || /^$(GHC_BUILD_FLAG_h)$/
758 || /^$(GHC_BUILD_FLAG_i)$/
759 || /^$(GHC_BUILD_FLAG_j)$/
760 || /^$(GHC_BUILD_FLAG_k)$/
761 || /^$(GHC_BUILD_FLAG_l)$/
762 || /^$(GHC_BUILD_FLAG_m)$/
763 || /^$(GHC_BUILD_FLAG_n)$/
764 || /^$(GHC_BUILD_FLAG_o)$/
765 || /^$(GHC_BUILD_FLAG_A)$/
766 || /^$(GHC_BUILD_FLAG_B)$/
768 || /^$(GHC_BUILD_FLAG_2s)$/ # GC ones...
769 || /^$(GHC_BUILD_FLAG_1s)$/
770 || /^$(GHC_BUILD_FLAG_du)$/
772 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
774 /^$(GHC_BUILD_FLAG_a)$/ && do { $BuildTag = '_a'; };
775 /^$(GHC_BUILD_FLAG_b)$/ && do { $BuildTag = '_b'; };
776 /^$(GHC_BUILD_FLAG_c)$/ && do { $BuildTag = '_c'; };
777 /^$(GHC_BUILD_FLAG_d)$/ && do { $BuildTag = '_d'; };
778 /^$(GHC_BUILD_FLAG_e)$/ && do { $BuildTag = '_e'; };
779 /^$(GHC_BUILD_FLAG_f)$/ && do { $BuildTag = '_f'; };
780 /^$(GHC_BUILD_FLAG_g)$/ && do { $BuildTag = '_g'; };
781 /^$(GHC_BUILD_FLAG_h)$/ && do { $BuildTag = '_h'; };
782 /^$(GHC_BUILD_FLAG_i)$/ && do { $BuildTag = '_i'; };
783 /^$(GHC_BUILD_FLAG_j)$/ && do { $BuildTag = '_j'; };
784 /^$(GHC_BUILD_FLAG_k)$/ && do { $BuildTag = '_k'; };
785 /^$(GHC_BUILD_FLAG_l)$/ && do { $BuildTag = '_l'; };
786 /^$(GHC_BUILD_FLAG_m)$/ && do { $BuildTag = '_m'; };
787 /^$(GHC_BUILD_FLAG_n)$/ && do { $BuildTag = '_n'; };
788 /^$(GHC_BUILD_FLAG_o)$/ && do { $BuildTag = '_o'; };
789 /^$(GHC_BUILD_FLAG_A)$/ && do { $BuildTag = '_A'; };
790 /^$(GHC_BUILD_FLAG_B)$/ && do { $BuildTag = '_B'; };
792 /^$(GHC_BUILD_FLAG_2s)$/ && do { $BuildTag = '_2s'; };
793 /^$(GHC_BUILD_FLAG_1s)$/ && do { $BuildTag = '_1s'; };
794 /^$(GHC_BUILD_FLAG_du)$/ && do { $BuildTag = '_du'; };
796 local($stuff) = $UserSetupOpts{$BuildTag};
797 local(@opts) = split(/\s+/, $stuff);
799 # feed relevant ops into the arg-processing loop (if any)
800 unshift(@ARGV, @opts) if $#opts >= 0;
804 #---------- set search paths for libraries and things ------------------
806 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
807 # prepends the items to the list); -I is for including C .h files.
809 /^-i$/ && do { @Import_dir = (); # import path cleared!
811 print STDERR "WARNING: import paths cleared by `-i'\n";
814 /^-i(.*)/ && do { local(@new_items)
815 = split( /:/, &grab_arg_arg('-i', $1));
816 unshift(@Import_dir, @new_items);
819 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg('-I', $1)); next arg; };
820 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg('-L', $1)); next arg; };
821 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg('-l', $1)); next arg; };
823 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg('-syslib',$1);
824 print STDERR "$Pgm: no such system library (-syslib): $syslib\n",
825 $Status++ unless $syslib =~ /^(hbc|ghc|posix|contrib)$/;
827 unshift(@SysImport_dir,
829 ? "$InstSysLibDir/$syslib/imports"
830 : "$TopPwd/hslibs/$syslib/src");
832 if ( $(INSTALLING) ) {
833 push(@SysLibrary_dir,
834 ("$InstSysLibDir/$TargetPlatform"));
836 push(@SysLibrary_dir,
837 ("$TopPwd/hslibs/$syslib"
838 ,"$TopPwd/hslibs/$syslib/cbits"));
841 push(@SysLibrary, "-lHS$syslib");
842 push(@SysLibrary, "-lHS${syslib}_cbits")
843 unless $syslib eq 'contrib'; #HACK! it has no cbits
847 #=======================================================================
848 # various flags that we can harmlessly send to one program or another
849 # (we will later "reclaim" some of the compiler ones now sent to gcc)
850 #=======================================================================
852 #---------- this driver itself (ghc) -----------------------------------
853 # these change what executable is run for each phase:
854 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
855 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
856 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
857 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
858 /^-pgma(.*)$/ && do { $As = $1; next arg; };
859 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
861 #---------- the get-anything-through opts (all pgms) -------------------
862 # these allow arbitrary option-strings to go to any phase:
863 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
864 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
865 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
866 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
867 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
868 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
869 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
871 #---------- Haskell C pre-processor (hscpp) ----------------------------
872 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg('-D',$1)."'"); next arg; };
873 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg('-U',$1)."'"); next arg; };
875 /^-genSPECS/ && do { $Cpp_flag_set = 1;
879 #---------- post-Haskell "assembler"------------------------------------
880 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
881 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
883 #---------- Haskell compiler (hsc) -------------------------------------
885 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
886 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
888 /^-fhaskell-1\.3$/ && do { next arg; }; # a no-op right now
890 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
892 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
894 /^-user-prelude-force/ && do { # ignore if not -user-prelude
897 /^-split-objs/ && do {
898 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|sparc)-/ ) {
900 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
905 push(@HsC_flags, "-fglobalise-toplev-names");
906 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
908 require('ghc-split.prl')
909 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
914 && do { push(@HsC_flags, $_);
915 push(@HsP_flags, '-N');
917 # push(@HsC_flags, '-fshow-import-specs');
921 /^-fspeciali[sz]e-unboxed$/
922 && do { $Oopt_DoSpecialise = '-fspecialise';
923 $Oopt_SpecialiseUnboxed = '-fspecialise-unboxed';
926 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
927 /^-fno-speciali[sz]e$/
928 && do { $Oopt_DoSpecialise = ''; next arg; };
931 # Now the foldr/build options, which are *on* by default (for -O).
934 && do { $Oopt_FoldrBuild = 1;
935 $Oopt_FB_Support = '-fdo-arity-expand';
940 && do { $Oopt_FoldrBuild = 0;
941 $Oopt_FB_Support = '';
944 /^-fno-foldr-build-rule$/
945 && do { $Oopt_FoldrBuild = 0;
949 && do { $Oopt_FB_Support = '';
952 /^-fno-snapback-to-append$/
953 && do { $Oopt_FoldrBuildInline .= ' -fdo-not-fold-back-append ';
954 #print "No Foldback of append\n";
959 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
960 /^-fvia-C$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
964 /^(-funfolding-use-threshold)(.*)$/
965 && do { $Oopt_UnfoldingUseThreshold = $1 . &grab_arg_arg($1, $2);
968 /^(-fmax-simplifier-iterations)(.*)$/
969 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg($1, $2);
972 /^-fno-pedantic-bottoms$/
973 && do { $Oopt_PedanticBottoms = ''; next arg; };
975 /^-fdo-monad-eta-expansion$/
976 && do { $Oopt_MonadEtaExpansion = $_; next arg; };
978 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
979 && do { push(@HsC_flags, $_); next arg; };
981 /^(-freturn-in-regs-threshold)(.*)$/
982 && do { local($what) = $1;
983 local($num) = &grab_arg_arg($what, $2);
984 if ($num < 2 || $num > 8) {
985 die "Bad experimental flag: $_\n";
987 $HscOut = '-C='; # force using C compiler
988 push(@HsC_flags, "$what$num");
989 push(@CcRegd_flags, "-D__STG_REGS_AVAIL__=$num");
995 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
996 &squashHscFlag("-f$1");
999 /^-f(show-import-specs)/
1000 && do { push(@HsC_flags, $_); next arg; };
1004 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes
1005 unshift(@CcBoth_flags, ( $_ ));
1008 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
1009 && do { # for GCC for SPARCs
1010 unshift(@CcBoth_flags, ( $_ ));
1013 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
1014 $StolenX86Regs = $1;
1017 #*************** ... and lots of debugging ones (form: -d* )
1019 # -d(no-)core-lint is done this way so it is turn-off-able.
1020 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
1021 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
1023 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
1024 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
1025 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
1026 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
1027 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
1028 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
1029 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
1031 #*************** ... and now all these -R* ones for its runtime system...
1033 /^-Rscale-sizes?(.*)/ && do {
1034 $Scale_sizes_by = &grab_arg_arg('-Rscale-sizes', $1);
1037 /^(-H|-Rmax-heapsize)(.*)/ && do {
1038 local($heap_size) = &grab_arg_arg($1, $2);
1039 if ($heap_size =~ /(\d+)[Kk]$/) {
1040 $heap_size = $1 * 1000;
1041 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
1042 $heap_size = $1 * 1000 * 1000;
1043 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
1044 $heap_size = $1 * 1000 * 1000 * 1000;
1046 if ($heap_size <= 0) {
1047 print STDERR "$Pgm: resetting heap-size to zero!!!\n";
1048 $Specific_heap_size = 0;
1050 # if several heap sizes given, take the largest...
1051 } elsif ($heap_size >= $Specific_heap_size) {
1052 $Specific_heap_size = $heap_size;
1054 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n";
1058 /^-(K|Rmax-(stk|stack)size)(.*)/ && do {
1059 local($stk_size) = &grab_arg_arg('-Rmax-stksize', $3);
1060 if ($stk_size =~ /(\d+)[Kk]$/) {
1061 $stk_size = $1 * 1000;
1062 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
1063 $stk_size = $1 * 1000 * 1000;
1064 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
1065 $stk_size = $1 * 1000 * 1000 * 1000;
1067 if ($stk_size <= 0) {
1068 print STDERR "$Pgm: resetting stack-size to zero!!!\n";
1069 $Specific_stk_size = 0;
1071 # if several stack sizes given, take the largest...
1072 } elsif ($stk_size >= $Specific_stk_size) {
1073 $Specific_stk_size = $stk_size;
1075 print STDERR "$Pgm: ignoring stack-size-setting option (-Rmax-stksize $stk_size)...not the largest seen\n";
1079 /^-Rgc-stats$/ && do { $CollectingGCstats++;
1080 # the two RTSs do this diff ways; we will try to compensate
1083 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
1085 #---------- C high-level assembler (gcc) -------------------------------
1086 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
1088 # -dgcc-lint is a useful way of making GCC very fussy.
1089 # From alan@spri.levels.unisa.edu.au (Alan Modra).
1090 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
1091 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
1092 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
1094 # inject "#include <wurble>" into the compiler's C output!
1096 /^-#include(.*)/ && do {
1097 local($to_include) = &grab_arg_arg('-#include', $1);
1098 push(@CcInjects, "#include $to_include\n");
1101 #---------- Linker (gcc, really) ---------------------------------------
1103 /^-static$/ && do { push(@Ld_flags, $_); next arg; };
1105 #---------- mixed cc and linker magic ----------------------------------
1106 # this optimisation stuff is finally sorted out later on...
1108 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
1110 /^-O[1-2]?$/ && do {
1111 # print STDERR "$Pgm: NOTE: this version of GHC doesn't support -O or -O2\n";
1112 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
1113 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
1115 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
1118 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
1120 /^-Ofile(.*)/ && do {
1122 local($ofile) = &grab_arg_arg('-Ofile', $1);
1123 @HsC_minusO3_flags = ();
1125 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
1128 s/\#.*//; # death to comments
1129 s/[ \t]+//g; # death to whitespace
1130 next if /^$/; # ditto, blank lines
1131 s/([()*{}])/\\$1/g; # protect shell metacharacters
1133 push(@CcBoth_flags, $1);
1135 push(@HsC_minusO3_flags, $_);
1141 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
1142 # in the consistency info
1146 #---------- linking .a file --------------------------------------------
1148 /^-Main(.*)/ && do {
1149 # specifies main or mainPrimIO to be linked
1153 #---------- catch unrecognized flags -----------------------------------
1156 print STDERR "$Pgm: unrecognised option: $_\n";
1160 #---------- anything else is considered an input file ------------------
1161 # (well, .o and .a files are immediately queued up as linker fodder..)
1163 push(@Link_file, $_);
1165 push(@Input_file, $_);
1168 # input files must exist:
1170 print STDERR "$Pgm: input file doesn't exist: $_\n";
1175 # if there are several input files,
1176 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
1177 # (except if linking, of course)
1179 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
1180 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
1181 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
1182 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
1183 print STDERR "\tPerhaps the -odir option will do what you want.\n";
1188 # check for various pathological -o and -odir combinations...
1189 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
1190 if ($Specific_output_file eq '-') {
1191 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
1193 } else { # amalgamate...
1194 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
1195 # ToDo: check we haven't got a junk name now...
1196 $Specific_output_dir = ''; # reset
1200 # PROFILING stuff after argv mangling:
1202 # warn about any scc exprs found (in case scc used as identifier)
1203 push(@HsP_flags, '-W');
1205 # add -auto sccs even if not profiling !
1206 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
1209 push(@HsC_flags, $PROFauto) if $PROFauto;
1210 push(@HsC_flags, $PROFcaf) if $PROFcaf;
1211 #push(@HsC_flags, $PROFdict) if $PROFdict;
1213 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
1215 push(@HsP_flags, (($PROFignore_scc) ? $PROFignore_scc : '-S'));
1217 if ( $SplitObjFiles ) {
1218 # can't split with cost centres -- would need global and externs
1219 print STDERR "$Pgm: WARNING: splitting objects when profiling will *BREAK* if any _scc_s are present!\n";
1220 # (but it's fine if there aren't any _scc_s around...)
1221 # $SplitObjFiles = 0; # unset
1222 #not an error: for now: $Status++;
1226 # crash and burn if there were errors
1227 if ( $Status > 0 ) {
1228 print STDERR $ShortUsage;
1233 %************************************************************************
1235 \section[Driver-post-argv-mangling]{Setup after reading options}
1237 %************************************************************************
1239 %************************************************************************
1241 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
1243 %************************************************************************
1245 We come now to the default ``wads of options'' that are turned on by
1246 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
1247 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
1250 The user can also specify his/her own list of options in a file; in
1251 that case, the work is already done (see stuff about @minusO3@,
1254 GHC allows very precise control of what happens during a compilation.
1255 Core-to-Core and STG-to-STG passes can be run in any order, as many
1256 times as you like. Individual transformations can be turned on or
1259 Sadly, however, there are some interdependencies \& Things You Must
1260 Not Do. Here is the list.
1262 CORE-TO-CORE PASSES:
1264 \item[\tr{-fspecialise}:]
1265 The specialiser must have dependency-analysed input; but if you run
1266 the simplifier to do this, you must not let it toss away unused
1267 bindings! (The typechecker conveys some specialisation info via
1268 ``unused'' bindings...)
1270 \item[\tr{-ffloat-inwards}:]
1271 Floating inwards should be done before strictness analysis, because
1272 the latter will give better results.
1274 \item[\tr{-fstatic-args}:]
1275 The static-arguments-transformation pass {\em must} have the
1276 simplifier run right after it.
1278 \item[\tr{-fcalc-inlinings[12]}:]
1279 Not required, but there may be slight gains by re-simplifying after
1280 this is done. (You could then \tr{-fcalc-inlinings} again, just for
1283 \item[\tr{-ffull-laziness}:]
1284 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
1285 that's run. (Um, well, howzabout the simplifier just once more...)
1290 \item[\tr{-fupdate-analysis}:]
1291 It really really wants to be the last STG-to-STG pass that is run.
1299 # '-falways-float-lets-from-lets', # no idea why this was here (WDP 95/09)
1300 '-ffloat-lets-exposing-whnf',
1301 '-ffloat-primops-ok',
1303 # '-fdo-lambda-eta-expansion', # too complicated
1305 # '-flet-to-case', # no strictness analysis, so...
1306 $Oopt_PedanticBottoms,
1307 # $Oopt_MonadEtaExpansion, # no thanks
1308 '-fsimpl-uf-use-threshold0',
1309 '-fessential-unfoldings-only',
1310 # $Oopt_UnfoldingUseThreshold, # no thanks
1311 $Oopt_MaxSimplifierIterations,
1314 # '-ffull-laziness', # removed 95/04 WDP following Andr\'e's lead
1316 $Oopt_FinalStgProfilingMassage
1319 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
1321 '-fdo-eta-reduction',
1323 # initial simplify: mk specialiser happy: minimum effort please
1327 '-fkeep-spec-pragma-ids', # required before specialisation
1328 '-fsimpl-uf-use-threshold0',
1329 '-fessential-unfoldings-only',
1330 '-fmax-simplifier-iterations1',
1331 $Oopt_PedanticBottoms,
1334 ($Oopt_DoSpecialise) ? (
1335 '-fspecialise-overloaded',
1336 $Oopt_SpecialiseUnboxed,
1340 '-fsimplify', # need dependency anal after specialiser ...
1341 '\(', # need tossing before calc-inlinings ...
1343 '-ffloat-lets-exposing-whnf',
1344 '-ffloat-primops-ok',
1348 '-fdo-lambda-eta-expansion',
1350 $Oopt_PedanticBottoms,
1351 $Oopt_MonadEtaExpansion,
1352 $Oopt_UnfoldingUseThreshold,
1353 $Oopt_MaxSimplifierIterations,
1356 #LATER: '-fcalc-inlinings1', -- pointless for 2.01
1358 # ($Oopt_FoldrBuildWW) ? (
1359 # '-ffoldr-build-ww-anal',
1360 # '-ffoldr-build-worker-wrapper',
1364 # '-ffloat-lets-exposing-whnf',
1365 # '-ffloat-primops-ok',
1369 # '-fdo-lambda-eta-expansion',
1371 # $Oopt_PedanticBottoms,
1372 # $Oopt_MonadEtaExpansion,
1373 # $Oopt_UnfoldingUseThreshold,
1374 # $Oopt_MaxSimplifierIterations,
1378 # this pass-ordering sequence was agreed by Simon and Andr\'e
1379 # (WDP 94/07, 94/11).
1382 ($Oopt_FoldrBuild) ? (
1383 '-ffoldr-build-on', # desugar list comprehensions for foldr/build
1387 '-fignore-inline-pragma', # **** NB!
1388 '-fdo-foldr-build', # NB
1390 '-ffloat-lets-exposing-whnf',
1391 '-ffloat-primops-ok',
1395 '-fdo-lambda-eta-expansion', # After full laziness
1397 $Oopt_PedanticBottoms,
1398 $Oopt_MonadEtaExpansion,
1399 $Oopt_UnfoldingUseThreshold,
1400 $Oopt_MaxSimplifierIterations,
1409 '-ffloat-lets-exposing-whnf',
1410 '-ffloat-primops-ok',
1414 '-fdo-lambda-eta-expansion',
1416 ($Oopt_FoldrBuildInline),
1417 # you need to inline foldr and build
1418 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
1419 # but do reductions if you see them!
1420 $Oopt_PedanticBottoms,
1421 $Oopt_MonadEtaExpansion,
1422 $Oopt_UnfoldingUseThreshold,
1423 $Oopt_MaxSimplifierIterations,
1431 '-ffloat-lets-exposing-whnf',
1432 '-ffloat-primops-ok',
1436 '-fdo-lambda-eta-expansion',
1438 '-flet-to-case', # Aha! Only done after strictness analysis
1439 $Oopt_PedanticBottoms,
1440 $Oopt_MonadEtaExpansion,
1441 $Oopt_UnfoldingUseThreshold,
1442 $Oopt_MaxSimplifierIterations,
1447 # Case-liberation for -O2. This should be after
1448 # strictness analysis and the simplification which follows it.
1450 # ( ($OptLevel != 2)
1452 # : "-fliberate-case -fsimplify \\( $Oopt_FB_Support -ffloat-lets-exposing-whnf -ffloat-primops-ok -fcase-of-case -fdo-case-elim -fcase-merge -fdo-lambda-eta-expansion -freuse-con -flet-to-case $Oopt_PedanticBottoms $Oopt_MonadEtaExpansion $Oopt_UnfoldingUseThreshold $Oopt_MaxSimplifierIterations \\)" ),
1454 # Final clean-up simplification:
1459 '-ffloat-lets-exposing-whnf',
1460 '-ffloat-primops-ok',
1464 '-fdo-lambda-eta-expansion',
1467 '-fignore-inline-pragma', # **** NB!
1468 $Oopt_FoldrBuildInline,
1469 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
1470 # but still do reductions if you see them!
1471 $Oopt_PedanticBottoms,
1472 $Oopt_MonadEtaExpansion,
1473 $Oopt_UnfoldingUseThreshold,
1474 $Oopt_MaxSimplifierIterations,
1479 #LATER: '-fcalc-inlinings2', -- pointless for 2.01
1482 '-fupdate-analysis',
1484 $Oopt_FinalStgProfilingMassage,
1490 # SPECIAL FLAGS for -O2
1491 ($OptLevel == 2) ? (
1497 Sort out what we're going to do about optimising. First, the @hsc@
1498 flags and regular @cc@ flags to worry about:
1500 if ( $OptLevel <= 0 ) {
1502 # for this level, we tell the parser -fignore-interface-pragmas
1503 push(@HsC_flags, '-fignore-interface-pragmas');
1504 # and tell the compiler not to produce them
1505 push(@HsC_flags, '-fomit-interface-pragmas');
1507 &add_Hsc_flags( @HsC_minusNoO_flags );
1508 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
1510 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
1512 &add_Hsc_flags( @HsC_minusO_flags );
1513 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
1514 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
1515 # but it *is* useful in compiling the garbage collectors (so said
1516 # Patrick many moons ago...).
1518 } else { # -Ofile, then...
1520 &add_Hsc_flags( @HsC_minusO3_flags );
1521 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
1525 %************************************************************************
1527 \subsection{Check for consistency, etc.}
1529 %************************************************************************
1531 Sort out @$BuildTag@, @$PROFing@, @$CONCURing@, @$PARing@,
1532 @$GRANing@, @$TICKYing@:
1534 if ( $BuildTag ne '' ) {
1535 local($b) = $BuildDescr{$BuildTag};
1536 if ($CONCURing eq 'c') { print STDERR "$Pgm: Can't mix $b with -concurrent.\n"; exit 1; }
1537 if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
1538 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
1539 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
1541 # ok to have a user-way profiling build
1542 # eval the profiling opts ... but leave user-way BuildTag
1543 if ($PROFing eq 'p') { eval($EvaldSetupOpts{'_p'}); }
1545 } elsif ( $PROFing eq 'p' ) {
1546 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
1547 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
1548 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
1549 $BuildTag = ($CONCURing eq 'c') ? '_mr' : '_p' ; # possibly "profiled concurrent"...
1551 } elsif ( $CONCURing eq 'c' ) {
1552 if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix -concurrent with -parallel.\n"; exit 1; }
1553 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -concurrent with -gransim.\n"; exit 1; }
1554 $BuildTag = ($TICKYing eq 't') ? '_mt' : '_mc' ; # possibly "ticky concurrent"...
1555 # "profiled concurrent" already acct'd for...
1557 } elsif ( $PARing eq 'p' ) {
1558 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
1559 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
1562 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
1563 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
1567 } elsif ( $GRANing eq 'g' ) {
1568 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
1571 } elsif ( $TICKYing eq 't' ) {
1577 if ( $BuildTag ne '' ) { # something other than normal sequential...
1579 push(@HsP_flags, "-syshisuffix=$BuildTag.hi"); # use appropriate Prelude .hi files
1581 $HscOut = '-C='; # must go via C
1583 eval($EvaldSetupOpts{$BuildTag});
1587 Decide what the consistency-checking options are in force for this run:
1589 $HsC_consist_options = "${BuildTag},${DEBUGging}";
1590 $Cc_consist_options = "${BuildTag},${DEBUGging}";
1593 %************************************************************************
1595 \subsection{Add on machine-specific C-compiler flags}
1597 %************************************************************************
1599 Shove on magical machine-specific options. We use \tr{unshift} to
1600 stick them on the {\em front} of the arrays, so that ``later''
1601 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
1603 Note: a few ``always apply'' flags were set at the very beginning.
1606 if ($TargetPlatform =~ /^alpha-/) {
1607 # we know how to *mangle* asm for alpha
1608 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1609 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1610 unshift(@CcBoth_flags, ('-static'));
1612 } elsif ($TargetPlatform =~ /^hppa/) {
1613 # we know how to *mangle* asm for hppa
1614 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1615 unshift(@CcBoth_flags, ('-static'));
1616 # We don't put in '-mlong-calls', because it's only
1617 # needed for very big modules (sigh), and we don't want
1618 # to hobble ourselves further on all the other modules
1620 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
1621 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
1622 # (very nice, but too bad the HP /usr/include files don't agree.)
1624 } elsif ($TargetPlatform =~ /^i386-/) {
1625 # we know how to *mangle* asm for X86
1626 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1627 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1629 # -fno-defer-pop : basically the same game as for m68k
1631 # -fomit-frame-pointer : *must* ; because we're stealing
1632 # the fp (%ebp) for our register maps. *All* register
1633 # maps (in MachRegs.lh) must steal it.
1635 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1636 unshift(@CcRegd_flags, '-fomit-frame-pointer');
1637 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1639 } elsif ($TargetPlatform =~ /^m68k-/) {
1640 # we know how to *mangle* asm for m68k
1641 unshift (@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1642 unshift (@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1644 # -fno-defer-pop : for the .hc files, we want all the pushing/
1645 # popping of args to routines to be explicit; if we let things
1646 # be deferred 'til after an STGJUMP, imminent death is certain!
1648 # -fomit-frame-pointer : *don't*
1649 # It's better to have a6 completely tied up being a frame pointer
1650 # rather than let GCC pick random things to do with it.
1651 # (If we want to steal a6, then we would try to do things
1652 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1654 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1655 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1656 # maybe gives reg alloc a better time
1657 # also: -fno-defer-pop is not sufficiently well-behaved without it
1659 } elsif ($TargetPlatform =~ /^mips-/) {
1660 # we (hope to) know how to *mangle* asm for MIPSen
1661 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1662 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1663 unshift(@CcBoth_flags, ('-static'));
1665 } elsif ($TargetPlatform =~ /^powerpc-/) {
1666 # we know how to *mangle* asm for PowerPC
1667 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1668 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1669 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1670 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1672 } elsif ($TargetPlatform =~ /^sparc-/) {
1673 # we know how to *mangle* asm for SPARC
1674 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1675 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1680 Same unshifting magic, but for special linker flags.
1682 Should really be whether or not we prepend underscores to global symbols,
1683 not an architecture test. (JSM)
1686 $Under = ( $TargetPlatform =~ /^alpha-/
1687 || $TargetPlatform =~ /^hppa/
1688 || $TargetPlatform =~ /^mips-sgi-irix/
1689 || $TargetPlatform =~ /^powerpc-/
1690 || $TargetPlatform =~ /-solaris/
1691 || $TargetPlatform =~ /-linux$/
1697 '-u', "${Under}Main_" . $Ld_main . '_closure',
1699 # , '-u', "${Under}STbase_unsafePerformPrimIO_fast1"
1700 # , '-u', "${Under}Prelude_Z91Z93_closure" # i.e., []
1701 # , '-u', "${Under}Prelude_IZh_static_info"
1702 # , '-u', "${Under}Prelude_False_inregs_info"
1703 # , '-u', "${Under}Prelude_True_inregs_info"
1704 # , '-u', "${Under}Prelude_CZh_static_info"
1705 # , '-u', "${Under}DEBUG_REGS"
1707 ; # just for fun, now...
1710 %************************************************************************
1712 \subsection{Set up include paths and system-library enslurpment}
1714 %************************************************************************
1716 Now that we know what garbage-collector, etc., are required, we can
1717 finalise our list of libraries to slurp through, and generally Get
1721 # default includes must be added AFTER option processing
1722 if ( ! $(INSTALLING) ) {
1723 push (@Include_dir, "$TopPwd/$(CURRENT_DIR)/$(GHC_INCLUDESRC)");
1725 push (@Include_dir, "$InstLibDirGhc/includes");
1726 push (@Include_dir, "$InstDataDirGhc/includes");
1731 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1734 foreach $f (@SysLibrary) {
1735 next if $f =~ /_cbits/;
1736 $f .= $BuildTag if $f =~ /^-lHS/;
1739 # fiddle the TopClosure file name...
1740 $TopClosureFile =~ s/XXXX//;
1742 # Push library HSrts, plus boring clib bit
1743 push(@SysLibrary, "-lHSrts${BuildTag}");
1744 push(@SysLibrary, '-lHSclib');
1746 # Push the pvm libraries
1747 if ($BuildTag eq '_mp') {
1748 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1749 push(@SysLibrary, "-L$pvmlib", '-lpvm3', '-lgpvm3');
1750 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1751 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1752 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1753 push(@SysLibrary, '-lsocket', '-lnsl');
1757 # Push the GNU multi-precision arith lib; and the math library
1758 push(@SysLibrary, '-lgmp');
1759 push(@SysLibrary, '-lm');
1762 %************************************************************************
1764 \subsection{Check that this system was built to do what we are asking}
1766 %************************************************************************
1768 Before continuing we check that the appropriate build is available.
1771 die "$Pgm: no BuildAvail?? $BuildTag\n" if ! $BuildAvail{$BuildTag}; # sanity
1773 if ( $BuildAvail{$BuildTag} =~ /^NO$/ ) {
1774 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1775 "' \"build\" is not available with your GHC setup.\n";
1776 print STDERR "(It was not configured for it at your site.)\n";
1777 print STDERR $ShortUsage;
1782 %************************************************************************
1784 \subsection{Final miscellaneous setup bits before we start going}
1786 %************************************************************************
1788 Record largest specific heapsize, if any.
1790 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1791 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1792 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1793 push(@HsC_rts_flags, "-K$Specific_stk_size");
1795 # hack to avoid running hscpp
1796 $HsCpp = $Cat if ! $Cpp_flag_set;
1799 If no input or link files seen, then we let 'em feed in stdin; this is
1800 mainly for debugging.
1802 if ($#Input_file < 0 && $#Link_file < 0) {
1803 @Input_file = ( '-' );
1805 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1806 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n";
1807 while (<>) { print INF $_; }
1808 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1812 Tell the world who we are, if they asked.
1814 print STDERR "$(PROJECTNAME), version $(PROJECTVERSION) $(PROJECTPATCHLEVEL)\n"
1818 %************************************************************************
1820 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1822 %************************************************************************
1824 Process the input files; don't continue with linking if there are
1825 problems (global variable @$Status@ non-zero).
1827 foreach $ifile (@Input_file) {
1828 &ProcessInputFile($ifile);
1831 if ( $Status > 0 ) { # don't link if there were errors...
1832 print STDERR $ShortUsage;
1838 Link if appropriate.
1841 local($libdirs) = '';
1843 # glue them together:
1844 push(@UserLibrary_dir, @SysLibrary_dir);
1846 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1848 # for a linker, use an explicitly given one, or the going C compiler ...
1849 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1851 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1852 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1854 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $TopClosureFile $libdirs @UserLibrary @SysLibrary";
1855 &run_something($to_do, 'Linker');
1857 # finally, check the consistency info in the binary
1858 local($executable) = $Files_to_tidy[0];
1859 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1862 # dynamically load consistency-chking code; then do it.
1863 require('ghc-consist.prl')
1864 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1866 &chk_consistency_info ( $executable );
1869 # if PVM parallel stuff, we do truly weird things.
1870 # Essentially: (1) move the executable over to where PVM expects
1871 # to find it. (2) create a script in place of the executable
1872 # which will cause the program to be run, via SysMan.
1873 if ( $PARing eq 'p' ) {
1874 local($pvm_executable) = $executable;
1875 local($pvm_executable_base);
1877 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1878 local($pwd) = `pwd`;
1880 $pwd =~ s/^\/tmp_mnt//;
1881 $pvm_executable = "$pwd/$pvm_executable";
1884 $pvm_executable =~ s|/|=|g; # make /s into =s
1885 $pvm_executable_base = $pvm_executable;
1887 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1888 . "/$pvm_executable";
1890 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1892 # OK, now create the magic script for "$executable"
1893 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1894 print EXEC <<EOSCRIPT1;
1896 # =!=!=!=!=!=!=!=!=!=!=!
1897 # This script is automatically generated: DO NOT EDIT!!!
1898 # Generated by Glasgow Haskell, version $(PROJECTVERSION) $(PROJECTPATCHLEVEL)
1900 \$pvm_executable = '$pvm_executable';
1901 \$pvm_executable_base = '$pvm_executable_base';
1902 \$SysMan = '$SysMan';
1905 print EXEC <<\EOSCRIPT2;
1906 # first, some magical shortcuts to run "commands" on the binary
1908 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1910 system("$cmd $pvm_executable");
1914 # OK, really run it; process the args first
1915 $ENV{'PE'} = $pvm_executable_base;
1917 $nprocessors = 2; # the default
1921 # ToDo: handle --RTS
1922 args: while ($a = shift(@ARGV)) {
1923 if ( $a eq '+RTS' ) {
1925 } elsif ( $a eq '-RTS' ) {
1928 if ( $a eq '-d' && $in_RTS_args ) {
1930 } elsif ( $a =~ /^-N(\d+)/ && $in_RTS_args ) {
1933 push(@nonPVM_args, $a);
1937 local($return_val) = 0;
1938 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
1940 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
1943 close(EXEC) || die "Failed closing $executable\n";
1944 chmod 0755, $executable;
1948 # that... that's all, folks!
1950 exit $Status; # will still be 0 if all went well
1953 %************************************************************************
1955 \section[Driver-do-one-file]{How to process a single input file}
1957 %************************************************************************
1960 sub ProcessInputFile {
1961 local($ifile) = @_; # input file name
1962 local($ifile_root); # root of or basename of input file
1963 local($ofile_target); # ultimate output file we hope to produce
1964 # from input file (need to know for recomp
1965 # checking purposes)
1966 local($hifile_target);# ditto (but .hi file)
1969 Handle the weirdity of input from stdin.
1971 if ($ifile ne '-') {
1972 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1973 $ofile_target = # may be reset later...
1974 ($Specific_output_file ne '' && ! $Do_lnkr)
1975 ? $Specific_output_file
1976 : &odir_ify($ifile_root, 'o');
1977 $hifile_target= ($Specific_hi_file ne '')
1979 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1980 # NB: may change if $ifile_root isn't module name (??)
1982 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1983 $ifile_root = '_stdin';
1984 $ofile_target = '_stdout'; # gratuitous?
1985 $hifile_target= '_stdout'; # ditto?
1989 We need to decide what phases of the compilation system we will run
1990 over this file. The defaults are the ones established when processing
1991 flags. (That established what the last phase run for all files is.)
1993 We do the pre-recompilation-checker phases here; the rest later.
1997 Look at the suffix and decide what initial phases of compilation may
1998 be dropped off for this file. Also the rather boring business of
1999 which files are coming-in/going-out.
2001 Again, we'll do the post-recompilation-checker parts of this later.
2003 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
2004 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
2006 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
2008 : ( ($HscOut eq '-C=') ? 1 : 0 );
2009 local($do_as) = $Do_as;
2011 # names of the files to stuff between phases
2012 # defaults are temporaries
2013 local($in_lit2pgm) = $ifile;
2014 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
2015 local($hscpp_hsc) = "$Tmp_prefix.cpp";
2016 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
2017 local($hsc_hi) = "$Tmp_prefix.hi";
2018 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
2019 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
2020 local($as_out) = $ofile_target;
2022 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
2024 if ($ifile =~ /\.lhs$/) {
2025 ; # nothing to change
2026 } elsif ($ifile =~ /\.hs$/) {
2028 $lit2pgm_hscpp = $ifile;
2029 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
2030 $do_lit2pgm = 0; $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
2032 } elsif ($ifile =~ /\.c$/) {
2033 $do_lit2pgm = 0; $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
2034 $hsc_out = $ifile; $is_hc_file = 0;
2035 } elsif ($ifile =~ /\.s$/) {
2036 $do_lit2pgm = 0; $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
2038 } else { # don't know what it is, but nothing to do herein...
2039 $do_lit2pgm = 0; $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
2042 # OK, have a bash on the first two phases:
2043 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
2046 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc)
2050 We now think about whether to run hsc/cc or not (when hsc produces .s
2051 stuff, it effectively takes the place of both phases).
2053 To get the output file name right: for each phase that we are {\em
2054 not} going to run, set its input (i.e., the output of its preceding
2055 phase) to @"$ifile_root.<suffix>"@.
2057 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
2059 if (! $do_cc && ! $do_as) { # stopping after hsc
2060 $hsc_out = ($Specific_output_file ne '')
2061 ? $Specific_output_file
2062 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
2064 $ofile_target = $hsc_out; # reset
2067 if (! $do_as) { # stopping after gcc (or hsc)
2068 $cc_as = ($Specific_output_file ne '')
2069 ? $Specific_output_file
2070 : &odir_ify($ifile_root, ( $Only_preprocess_C ) ? 'i' : 's');
2072 $ofile_target = $cc_as; # reset
2078 Now the Haskell compiler, C compiler, and assembler
2082 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
2083 $ofile_target, $hifile_target);
2087 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
2088 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root);
2091 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
2093 &runAs($as_out, $ifile_root) if $do_as;
2096 Finally, decide what to queue up for linker input.
2098 # tentatively assume we will eventually produce linker input:
2099 push(@Link_file, &odir_ify($ifile_root, 'o'));
2101 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
2103 if ( $ifile !~ /\.(lhs|hs|hc|c|s)$/ && $ifile !~ /_hc$/ ) {
2104 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n"
2105 if $ifile !~ /\.a$/;
2107 # oops; we tentatively pushed the wrong thing; fix & do the right thing
2108 pop(@Link_file); push(@Link_file, $ifile);
2111 } # end of ProcessInputFile
2114 %************************************************************************
2116 \section[Driver-run-phases]{Routines to run the various phases}
2118 %************************************************************************
2122 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
2124 local($to_do) = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && ".
2125 "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
2126 @Files_to_tidy = ( $lit2pgm_hscpp );
2128 &run_something($to_do, 'literate pre-processor');
2134 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
2138 if ($HsCpp eq $Cat) {
2139 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $hscpp_hsc && ".
2140 "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
2141 @Files_to_tidy = ( $hscpp_hsc );
2142 &run_something($to_do, 'Ineffective C pre-processor');
2144 local($includes) = '-I' . join(' -I',@Include_dir);
2145 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $hscpp_hsc && ".
2146 "$HsCpp $Verbose $genSPECS_flag @HsCpp_flags -D__HASKELL1__=$Haskell1Version -D__GLASGOW_HASKELL__=$GhcVersionInfo $includes $lit2pgm_hscpp >> $hscpp_hsc";
2147 @Files_to_tidy = ( $hscpp_hsc );
2148 &run_something($to_do, 'Haskellised C pre-processor');
2154 sub runHscAndProcessInterfaces {
2155 local($ifile, $hscpp_hsc, $ifiel_root, $ofile_target, $hifile_target) = @_;
2157 # $ifile is the original input file
2158 # $hscpp_hsc post-unlit, post-cpp, etc., input file
2159 # $ifile_root input filename minus suffix
2160 # $ofile_target the output file that we ultimately hope to produce
2161 # $hifile_target the .hi file ... (ditto)
2163 local($source_unchanged) = 1;
2165 # Check if the source file is up to date relative to the target; in
2166 # that case we say "source is unchanged" and let the compiler bale out
2167 # early if the import usage information allows it.
2169 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
2170 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
2172 if ( ! -f $ofile_target ) {
2173 # print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n";
2174 $source_unchanged = 0;
2177 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
2178 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
2180 if ( ! -f $hifile_target ) {
2181 # print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n";
2182 $source_unchanged = 0;
2185 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
2186 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
2188 if ($i_mtime > $o_mtime) {
2189 # print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n";
2190 $source_unchanged = 0;
2193 # So if source_unchanged is still "1", we pass on the good news to the compiler
2194 # The -recomp flag can disable this, forcing recompilation
2195 if ($Do_recomp_chkr && $source_unchanged) {
2196 push(@HsC_flags, '-fsource-unchanged');
2201 &runHsc($ifile_root, $hsc_out, $hsc_hi, $going_interactive);
2203 # See if it baled out early, saying nothing needed doing.
2204 # We work this out by seeing if it created an output .hi file
2206 if ( ! -f $hsc_hi ) {
2207 # Doesn't exist, so we baled out early.
2208 # Tell the C compiler and assembler not to run
2209 $do_cc = 0; $do_as = 0;
2211 # Update dependency info
2212 &run_something("touch $ofile_target", "Touch $ofile_target, to propagate dependencies");
2216 # Didn't bale out early (new .hi file) so we thunder on
2218 # If non-interactive, heave in the consistency info at the end
2219 # NB: pretty hackish (depends on how $output is set)
2220 if ( ! $going_interactive ) {
2221 if ( $HscOut eq '-C=' ) {
2222 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
2224 } elsif ( $HscOut eq '-S=' ) {
2225 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
2226 $consist =~ s/,/./g;
2227 $consist =~ s/\//./g;
2228 $consist =~ s/-/_/g;
2229 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
2230 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
2232 &run_something($to_do, 'Pin on Haskell consistency info');
2236 # Interface-handling is important enough to live off by itself
2237 require('ghc-iface.prl')
2238 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
2240 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
2242 # save a copy of the .hc file, even if we are carrying on...
2243 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
2244 local($to_do) = "$Rm $ifile_root.hc; $Cp $hsc_out $ifile_root.hc";
2245 &run_something($to_do, 'Saving copy of .hc file');
2248 # save a copy of the .s file, even if we are carrying on...
2249 if ($HscOut eq '-S=' && $do_as && $Keep_s_file_too) {
2250 local($to_do) = "$Rm $ifile_root.s; $Cp $hsc_out $ifile_root.s";
2251 &run_something($to_do, 'Saving copy of .s file');
2254 # if we're going to split up object files,
2255 # we inject split markers into the .hc file now
2256 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
2257 &inject_split_markers ( $hsc_out );
2266 local($ifile_root, $hsc_out, $hsc_hi, $going_interactive) = @_;
2268 # prepend comma to HsP flags (so hsc can tell them apart...)
2269 foreach $a ( @HsP_flags ) { $a = ",$a" unless $a =~ /^,/; }
2271 &makeHiMap() unless $HiMapDone;
2272 # print STDERR "HiIncludes: $HiIncludeString\n";
2273 push(@HsC_flags, "-himap=$HiIncludeString");
2274 # push(@HsC_flags, "-himap=$HiMapFile");
2276 # here, we may produce .hc/.s and/or .hi files
2277 local($output) = '';
2278 @Files_to_tidy = ();
2280 if ( $going_interactive ) {
2281 # don't need .hi unless going to show it on stdout:
2282 $ProduceHi = '-nohifile=' if ! $HiOnStdout;
2283 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
2286 # set up for producing output/.hi; note that flag twiddling
2287 # may mean that nothing will actually be produced:
2288 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out";
2289 @Files_to_tidy = ( $hsc_hi, $hsc_out );
2291 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
2292 if ( $CollectingGCstats ) {
2293 push(@HsC_rts_flags, "-S$ifile_root.stat");
2294 push(@Files_to_tidy, "$ifile_root.stat");
2297 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
2298 # emit nofibbish time/bytes-alloc stats to stderr;
2299 # see later .stat file post-processing
2300 push(@HsC_rts_flags, "-s$Tmp_prefix.stat");
2301 push(@Files_to_tidy, "$Tmp_prefix.stat");
2305 if ($Specific_dump_file ne '') {
2306 $dump = "2>> $Specific_dump_file";
2307 $Using_dump_file = 1;
2311 $to_do = "$HsC @HsP_flags ,$hscpp_hsc $dump @HsC_flags $CoreLint $Verbose $output +RTS @HsC_rts_flags";
2312 &run_something($to_do, 'Haskell compiler');
2314 # finish business w/ nofibbish time/bytes-alloc stats
2315 &process_ghc_timings() if $CollectGhcTimings;
2319 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
2320 of (module-name, pathname) pairs, one per line, separated by a space.
2325 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
2329 # collect in %HiMap; write later; also used elsewhere in driver
2331 local($mod, $path, $d, $e);
2333 foreach $d ( @Import_dir ) {
2334 if ($HiIncludeString) { $HiIncludeString = "$HiIncludeString:$d";
2335 } else { $HiIncludeString = $d; }
2337 opendir(DIR, $d) || &tidy_up_and_die(1,"$Pgm: error when reading directory: $d\n");
2338 local(@entry) = readdir(DIR);
2339 foreach $e ( @entry ) {
2340 next unless $e =~ /\b([A-Z][A-Za-z0-9_]*)\.$HiSuffix$/o;
2345 if ( ! defined($HiMap{$mod}) ) {
2346 $HiMap{$mod} = $path;
2348 &already_mapped_err($mod, $HiMap{$mod}, $path);
2351 closedir(DIR); # || &tidy_up_and_die(1,"$Pgm: error when closing directory: $d\n");
2354 foreach $d ( @SysImport_dir ) {
2355 if ($HiIncludeString) { $HiIncludeString = "$HiIncludeString:$d";
2356 } else { $HiIncludeString = $d; }
2358 opendir(DIR, $d) || &tidy_up_and_die(1,"$Pgm: error when reading directory: $d\n");
2359 local(@entry) = readdir(DIR);
2360 foreach $e ( @entry ) {
2361 next unless $e =~ /([A-Z][A-Za-z0-9_]*)\.$SysHiSuffix$/o;
2362 next if $NoImplicitPrelude && $e =~ /Prelude\.$SysHiSuffix$/o;
2368 if ( ! defined($HiMap{$mod}) ) {
2369 $HiMap{$mod} = $path;
2370 } elsif ( $mod ne 'Main' ) { # saves useless warnings...
2371 &already_mapped_err($mod, $HiMap{$mod}, $path);
2374 closedir(DIR); # || &tidy_up_and_die(1,"$Pgm: error when closing directory: $d\n");
2377 $HiMapFile = "$Tmp_prefix.himap";
2379 open(HIMAP, "> $HiMapFile") || &tidy_up_and_die(1,"$Pgm: can't open $HiMapFile\n");
2380 foreach $d (keys %HiMap) {
2381 print HIMAP $d, ' ', $HiMap{$d}, "\n";
2383 close(HIMAP) || &tidy_up_and_die(1,"$Pgm: error when closing $HiMapFile\n");
2388 sub already_mapped_err {
2389 local($mod, $mapped_to, $path) = @_;
2391 # OK, it isn't really an error if $mapped_to and $path turn
2392 # out to be the same thing.
2393 ($m_dev,$m_ino,$m_mode,$m_nlink,$m_uid,$m_gid,$m_rdev,$m_size,
2394 $m_atime,$m_mtime,$m_ctime,$m_blksize,$m_blocks) = stat($mapped_to);
2395 ($p_dev,$p_ino,$p_mode,$p_nlink,$p_uid,$p_gid,$p_rdev,$p_size,
2396 $p_atime,$p_mtime,$p_ctime,$p_blksize,$p_blocks) = stat($path);
2398 return if $m_ino == $p_ino; # same inode number
2400 print STDERR "$Pgm: module $mod already mapped to $mapped_to";
2401 print STDERR ";\n\tignoring: $path\n";
2405 %************************************************************************
2407 \section[Driver-misc-utils]{Miscellaneous utilities}
2409 %************************************************************************
2411 %************************************************************************
2413 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
2415 %************************************************************************
2419 local($ofile,$def_suffix) = @_;
2421 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
2425 local($orig_file, $def_suffix) = @_;
2426 if ($Specific_output_dir eq '') { # do nothing
2427 &osuf_ify($orig_file, $def_suffix);
2429 local ($orig_file_only);
2430 ($orig_file_only = $orig_file) =~ s|.*/||;
2431 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
2438 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
2440 local($includes) = '-I' . join(' -I', @Include_dir);
2443 local($c_flags) = "@CcBoth_flags";
2444 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2446 # "input" files to use that are not in some weird directory;
2447 # to help C compilers grok .hc files [ToDo: de-hackify]
2448 local($cc_help) = "ghc$$.c";
2449 local($cc_help_s) = "ghc$$.s";
2452 $s_output = ($is_hc_file || $TargetPlatform =~ /^(hppa|i386)/) ? $cc_as_o : $cc_as;
2453 $c_flags .= " @CcRegd_flags";
2454 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2456 # C compiler won't like the .hc extension. So we create
2457 # a tmp .c file which #include's the needful.
2458 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2459 if ( $is_hc_file ) {
2461 #ifdef __STG_GCC_REGS__
2462 # if ! (defined(MAIN_REG_MAP) || defined(MARK_REG_MAP) || defined(SCAN_REG_MAP) || defined(SCAV_REG_MAP) || defined(FLUSH_REG_MAP))
2463 # define MAIN_REG_MAP
2466 #include "stgdefs.h"
2468 # user may have asked for #includes to be injected...
2469 print TMP @CcInjects if $#CcInjects >= 0;
2471 # heave in the consistency info
2472 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2474 # and #include the real source
2475 print TMP "#include \"$hsc_out\"\n";
2476 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2478 local($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 )";
2479 # note: __GLASGOW_HASKELL__ is pointedly *not* #defined at the C level.
2480 if ( $Only_preprocess_C ) { # HACK ALERT!
2481 $to_do =~ s/ -S\b//g;
2483 @Files_to_tidy = ( $cc_help, $cc_help_s, $s_output );
2484 $PostprocessCcOutput = 1; # hack, dear hack...
2485 &run_something($to_do, 'C compiler');
2486 $PostprocessCcOutput = 0;
2487 unlink($cc_help, $cc_help_s);
2493 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2495 if ( $is_hc_file ) {
2496 # dynamically load assembler-fiddling code, which we are about to use:
2497 require('ghc-asm.prl')
2498 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2501 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2504 # post-process the assembler [.hc files only]
2505 &mangle_asm($cc_as_o, $cc_as);
2508 #OLD: local($target) = 'oops';
2509 #OLD: $target = '-alpha' if $TargetPlatform =~ /^alpha-/;
2510 #OLD: $target = '-hppa' if $TargetPlatform =~ /^hppa/;
2511 #OLD: $target = '-old-asm' if $TargetPlatform =~ /^i386-/;
2512 #OLD: $target = '-m68k' if $TargetPlatform =~ /^m68k-/;
2513 #OLD: $target = '-mips' if $TargetPlatform =~ /^mips-/;
2514 #OLD: $target = '' if $TargetPlatform =~ /^powerpc-/;
2515 #OLD: $target = '-solaris' if $TargetPlatform =~ /^sparc-sun-solaris2/;
2516 #OLD: $target = '-sparc' if $TargetPlatform =~ /^sparc-sun-sunos4/;
2518 #OLD: if ( $target ne '' ) {
2519 #OLD: require("ghc-asm$target.prl")
2520 #OLD: || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm$target.prl!\n");
2521 #OLD: &mangle_asm($cc_as_o, "$cc_as-2"); # the OLD one!
2522 #OLD: &run_something("$Cmp -s $cc_as-2 $cc_as || $Diff $cc_as-2 $cc_as 1>&2 || exit 0",
2523 #OLD: "Diff'ing old and new mangled .s files"); # NB: to stderr
2526 } elsif ($TargetPlatform =~ /^hppa/) {
2527 # minor mangling of non-threaded files for hp-pa only
2528 require('ghc-asm.prl')
2529 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2530 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2532 } elsif ($TargetPlatform =~ /^i386/) {
2533 # extremely-minor OFFENSIVE mangling of non-threaded just one file
2534 require('ghc-asm.prl')
2535 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2536 &mini_mangle_asm_i386($cc_as_o, $cc_as);
2539 # save a copy of the .s file, even if we are carrying on...
2540 if ($do_as && $Keep_s_file_too) {
2541 local($to_do) = "$Rm $ifile_root.s; $Cp $cc_as $ifile_root.s";
2542 &run_something($to_do, 'Saving copy of .s file');
2549 local($as_out, $ifile_root) = @_;
2551 local($asmblr) = ( $As ) ? $As : $CcRegd;
2553 if ( ! $SplitObjFiles ) {
2554 local($to_do) = "$asmblr -o $as_out -c @As_flags $cc_as";
2555 @Files_to_tidy = ( $as_out );
2556 &run_something($to_do, 'Unix assembler');
2558 } else { # more complicated split-ification...
2560 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2562 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2563 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2564 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2565 @Files_to_tidy = ( $split_out );
2567 &run_something($to_do, 'Unix assembler');
2573 %************************************************************************
2575 \subsection[Driver-run-something]{@run_something@: Run a phase}
2577 %************************************************************************
2581 local($str_to_do, $tidy_name) = @_;
2583 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2584 print STDERR "$str_to_do\n" if $Verbose;
2586 if ($Using_dump_file) {
2587 open(DUMP, ">> $Specific_dump_file")
2588 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2589 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2591 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2594 local($return_val) = 0;
2595 system("$Time $str_to_do");
2598 if ( $PostprocessCcOutput ) { # hack, continued
2599 open(CCOUT, "< $Tmp_prefix.ccout")
2600 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2602 next if /attribute directive ignored/;
2603 next if /call-clobbered/;
2604 next if /from .*COptRegs\.lh/;
2605 next if /from .*(stg|rts)defs\.h:/;
2606 next if /from ghc\d+.c:\d+:/;
2607 next if /from .*\.lc/;
2608 next if /from .*SMinternal\.l?h/;
2609 next if /ANSI C does not support \`long long\'/;
2610 next if /warning:.*was declared \`extern\' and later \`static\'/;
2611 next if /warning: assignment discards \`const\' from pointer target type/;
2612 next if /: At top level:$/;
2613 next if /: In function \`.*\':$/;
2614 next if /\`ghc_cc_ID\' defined but not used/;
2617 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2620 if ($return_val != 0) {
2621 if ($Using_dump_file) {
2622 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2625 &tidy_up_and_die($return_val, '');
2627 $Using_dump_file = 0;
2631 %************************************************************************
2633 \subsection[Driver-ghctiming]{Emit nofibbish GHC timings}
2635 %************************************************************************
2637 NB: nearly the same as in @runstdtest@ script.
2640 sub process_ghc_timings {
2641 local($StatsFile) = "$Tmp_prefix.stat";
2642 local($SysSpecificTiming) = 'ghc';
2644 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2645 local($tot_live) = 0; # for calculating avg residency
2648 $tot_live += $1 if /^\s*\d+\s+\d+\s+\d+\.\d+\%\s+(\d+)\s+\d+\.\d+\%/;
2650 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2652 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2653 $MaxResidency = $1; $ResidencySamples = $2;
2656 $GCs = $1 if /^\s*([0-9,]+) garbage collections? performed/;
2658 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2659 $InitTime = $1; $InitElapsed = $2;
2660 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2661 $MutTime = $1; $MutElapsed = $2;
2662 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2663 $GcTime = $1; $GcElapsed = $2;
2666 close(STATS) || die "Failed when closing $StatsFile\n";
2667 if ( defined($ResidencySamples) && $ResidencySamples > 0 ) {
2668 $AvgResidency = int ($tot_live / $ResidencySamples) ;
2671 # warn about what we didn't find
2672 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2673 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2674 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2675 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2676 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2677 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2678 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2679 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2681 # things we didn't necessarily expect to find
2682 $MaxResidency = 0 unless defined($MaxResidency);
2683 $AvgResidency = 0 unless defined($AvgResidency);
2684 $ResidencySamples = 0 unless defined($ResidencySamples);
2687 $BytesAlloc =~ s/,//g;
2688 $MaxResidency =~ s/,//g;
2690 $InitTime =~ s/,//g;
2691 $InitElapsed =~ s/,//g;
2693 $MutElapsed =~ s/,//g;
2695 $GcElapsed =~ s/,//g;
2697 # print out what we found
2698 print STDERR "<<$SysSpecificTiming: ",
2699 "$BytesAlloc bytes, $GCs GCs, $AvgResidency/$MaxResidency avg/max bytes residency ($ResidencySamples samples), $InitTime INIT ($InitElapsed elapsed), $MutTime MUT ($MutElapsed elapsed), $GcTime GC ($GcElapsed elapsed)",
2700 " :$SysSpecificTiming>>\n";
2707 %************************************************************************
2709 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2711 %************************************************************************
2715 local($to_do) = "\n$Rm $Tmp_prefix*";
2716 if ( $Tmp_prefix !~ /^\s*$/ ) {
2717 print STDERR "$to_do\n" if $Verbose;
2722 sub tidy_up_and_die {
2723 local($return_val, $msg) = @_;
2725 # delete any files to tidy
2726 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2727 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2731 exit (($return_val == 0) ? 0 : 1);
2735 %************************************************************************
2737 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2739 %************************************************************************
2741 Some command-line arguments take an argument, e.g.,
2742 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2743 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2744 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2746 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2747 gobble the second argument (and probably set the heapsize to something
2751 local($option, $rest_of_arg) = @_;
2754 return($rest_of_arg);
2755 } elsif ($#ARGV >= 0) {
2756 local($temp) = $ARGV[0]; shift(@ARGV);
2759 print STDERR "$Pgm: no argument following $option option\n";
2770 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2772 foreach $f ( @HsC_antiflags ) {
2773 return(0) if $flag eq $f;
2775 # foreach $f ( @HsC_flags ) {
2776 # return(0) if $flag eq $f;
2781 sub squashHscFlag { # pretty terrible
2785 foreach $f ( @HsC_flags ) {
2786 if ($flag eq $f) { $f = ''; }
2794 foreach $f ( @flags ) {
2795 push( @HsC_flags, $f ) if &isntAntiFlag($f);