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 = '-fsimpl-uf-use-threshold3';
210 $Oopt_MaxSimplifierIterations = '-fmax-simplifier-iterations4';
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, $_); next arg; };
894 # ToDo: rename to -fcompiling-ghc-internals=<module>
896 /^-fcompiling-ghc-internals(.*)/ && do { local($m) = &grab_arg_arg('-fcompiling-ghc-internals',$1);
897 push(@HsC_flags, "-fcompiling-ghc-internals=$m");
900 # NB: not really put to use and not documented
901 /^-fusing-ghc-internals$/ && do { $UsingGhcInternals = 1; next arg; };
903 /^-user-prelude-force/ && do { # ignore if not -user-prelude
906 /^-split-objs/ && do {
907 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|sparc)-/ ) {
909 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
914 push(@HsC_flags, "-fglobalise-toplev-names");
915 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
917 require('ghc-split.prl')
918 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
923 && do { push(@HsC_flags, $_);
924 push(@HsP_flags, '-N');
926 # push(@HsC_flags, '-fshow-import-specs');
930 /^-fspeciali[sz]e-unboxed$/
931 && do { $Oopt_DoSpecialise = '-fspecialise';
932 $Oopt_SpecialiseUnboxed = '-fspecialise-unboxed';
935 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
936 /^-fno-speciali[sz]e$/
937 && do { $Oopt_DoSpecialise = ''; next arg; };
940 # Now the foldr/build options, which are *on* by default (for -O).
943 && do { $Oopt_FoldrBuild = 1;
944 $Oopt_FB_Support = '-fdo-arity-expand';
949 && do { $Oopt_FoldrBuild = 0;
950 $Oopt_FB_Support = '';
953 /^-fno-foldr-build-rule$/
954 && do { $Oopt_FoldrBuild = 0;
958 && do { $Oopt_FB_Support = '';
961 /^-fno-snapback-to-append$/
962 && do { $Oopt_FoldrBuildInline .= ' -fdo-not-fold-back-append ';
963 #print "No Foldback of append\n";
968 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
969 /^-fvia-C$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
973 /^(-fsimpl-uf-use-threshold)(.*)$/
974 && do { $Oopt_UnfoldingUseThreshold = $1 . &grab_arg_arg($1, $2);
977 /^(-fmax-simplifier-iterations)(.*)$/
978 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg($1, $2);
981 /^-fno-pedantic-bottoms$/
982 && do { $Oopt_PedanticBottoms = ''; next arg; };
984 /^-fdo-monad-eta-expansion$/
985 && do { $Oopt_MonadEtaExpansion = $_; next arg; };
987 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
988 && do { push(@HsC_flags, $_); next arg; };
990 /^(-freturn-in-regs-threshold)(.*)$/
991 && do { local($what) = $1;
992 local($num) = &grab_arg_arg($what, $2);
993 if ($num < 2 || $num > 8) {
994 die "Bad experimental flag: $_\n";
996 $HscOut = '-C='; # force using C compiler
997 push(@HsC_flags, "$what$num");
998 push(@CcRegd_flags, "-D__STG_REGS_AVAIL__=$num");
1004 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
1005 &squashHscFlag("-f$1");
1008 /^-f(show-import-specs)/
1009 && do { push(@HsC_flags, $_); next arg; };
1013 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes
1014 unshift(@CcBoth_flags, ( $_ ));
1017 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
1018 && do { # for GCC for SPARCs
1019 unshift(@CcBoth_flags, ( $_ ));
1022 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
1023 $StolenX86Regs = $1;
1026 #*************** ... and lots of debugging ones (form: -d* )
1028 # -d(no-)core-lint is done this way so it is turn-off-able.
1029 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
1030 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
1032 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
1033 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
1034 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
1035 /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; };
1036 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
1037 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
1038 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
1040 #*************** ... and now all these -R* ones for its runtime system...
1042 /^-Rscale-sizes?(.*)/ && do {
1043 $Scale_sizes_by = &grab_arg_arg('-Rscale-sizes', $1);
1046 /^(-H|-Rmax-heapsize)(.*)/ && do {
1047 local($heap_size) = &grab_arg_arg($1, $2);
1048 if ($heap_size =~ /(\d+)[Kk]$/) {
1049 $heap_size = $1 * 1000;
1050 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
1051 $heap_size = $1 * 1000 * 1000;
1052 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
1053 $heap_size = $1 * 1000 * 1000 * 1000;
1055 if ($heap_size <= 0) {
1056 print STDERR "$Pgm: resetting heap-size to zero!!!\n";
1057 $Specific_heap_size = 0;
1059 # if several heap sizes given, take the largest...
1060 } elsif ($heap_size >= $Specific_heap_size) {
1061 $Specific_heap_size = $heap_size;
1063 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n";
1067 /^-(K|Rmax-(stk|stack)size)(.*)/ && do {
1068 local($stk_size) = &grab_arg_arg('-Rmax-stksize', $3);
1069 if ($stk_size =~ /(\d+)[Kk]$/) {
1070 $stk_size = $1 * 1000;
1071 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
1072 $stk_size = $1 * 1000 * 1000;
1073 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
1074 $stk_size = $1 * 1000 * 1000 * 1000;
1076 if ($stk_size <= 0) {
1077 print STDERR "$Pgm: resetting stack-size to zero!!!\n";
1078 $Specific_stk_size = 0;
1080 # if several stack sizes given, take the largest...
1081 } elsif ($stk_size >= $Specific_stk_size) {
1082 $Specific_stk_size = $stk_size;
1084 print STDERR "$Pgm: ignoring stack-size-setting option (-Rmax-stksize $stk_size)...not the largest seen\n";
1088 /^-Rgc-stats$/ && do { $CollectingGCstats++;
1089 # the two RTSs do this diff ways; we will try to compensate
1092 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
1094 #---------- C high-level assembler (gcc) -------------------------------
1095 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
1097 # -dgcc-lint is a useful way of making GCC very fussy.
1098 # From alan@spri.levels.unisa.edu.au (Alan Modra).
1099 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
1100 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
1101 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
1103 # inject "#include <wurble>" into the compiler's C output!
1105 /^-#include(.*)/ && do {
1106 local($to_include) = &grab_arg_arg('-#include', $1);
1107 push(@CcInjects, "#include $to_include\n");
1110 #---------- Linker (gcc, really) ---------------------------------------
1112 /^-static$/ && do { push(@Ld_flags, $_); next arg; };
1114 #---------- mixed cc and linker magic ----------------------------------
1115 # this optimisation stuff is finally sorted out later on...
1117 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
1119 /^-O[1-2]?$/ && do {
1120 # print STDERR "$Pgm: NOTE: this version of GHC doesn't support -O or -O2\n";
1121 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
1122 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
1124 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
1127 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
1129 /^-Ofile(.*)/ && do {
1131 local($ofile) = &grab_arg_arg('-Ofile', $1);
1132 @HsC_minusO3_flags = ();
1134 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
1137 s/\#.*//; # death to comments
1138 s/[ \t]+//g; # death to whitespace
1139 next if /^$/; # ditto, blank lines
1140 s/([()*{}])/\\$1/g; # protect shell metacharacters
1142 push(@CcBoth_flags, $1);
1144 push(@HsC_minusO3_flags, $_);
1150 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
1151 # in the consistency info
1155 #---------- linking .a file --------------------------------------------
1157 /^-Main(.*)/ && do {
1158 # specifies main or mainPrimIO to be linked
1162 #---------- catch unrecognized flags -----------------------------------
1165 print STDERR "$Pgm: unrecognised option: $_\n";
1169 #---------- anything else is considered an input file ------------------
1170 # (well, .o and .a files are immediately queued up as linker fodder..)
1172 push(@Link_file, $_);
1174 push(@Input_file, $_);
1177 # input files must exist:
1179 print STDERR "$Pgm: input file doesn't exist: $_\n";
1184 # if there are several input files,
1185 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
1186 # (except if linking, of course)
1188 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
1189 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
1190 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
1191 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
1192 print STDERR "\tPerhaps the -odir option will do what you want.\n";
1197 # check for various pathological -o and -odir combinations...
1198 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
1199 if ($Specific_output_file eq '-') {
1200 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
1202 } else { # amalgamate...
1203 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
1204 # ToDo: check we haven't got a junk name now...
1205 $Specific_output_dir = ''; # reset
1209 # PROFILING stuff after argv mangling:
1211 # warn about any scc exprs found (in case scc used as identifier)
1212 push(@HsP_flags, '-W');
1214 # add -auto sccs even if not profiling !
1215 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
1218 push(@HsC_flags, $PROFauto) if $PROFauto;
1219 push(@HsC_flags, $PROFcaf) if $PROFcaf;
1220 #push(@HsC_flags, $PROFdict) if $PROFdict;
1222 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
1224 push(@HsP_flags, (($PROFignore_scc) ? $PROFignore_scc : '-S'));
1226 if ( $SplitObjFiles ) {
1227 # can't split with cost centres -- would need global and externs
1228 print STDERR "$Pgm: WARNING: splitting objects when profiling will *BREAK* if any _scc_s are present!\n";
1229 # (but it's fine if there aren't any _scc_s around...)
1230 # $SplitObjFiles = 0; # unset
1231 #not an error: for now: $Status++;
1235 # crash and burn if there were errors
1236 if ( $Status > 0 ) {
1237 print STDERR $ShortUsage;
1242 %************************************************************************
1244 \section[Driver-post-argv-mangling]{Setup after reading options}
1246 %************************************************************************
1248 %************************************************************************
1250 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
1252 %************************************************************************
1254 We come now to the default ``wads of options'' that are turned on by
1255 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
1256 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
1259 The user can also specify his/her own list of options in a file; in
1260 that case, the work is already done (see stuff about @minusO3@,
1263 GHC allows very precise control of what happens during a compilation.
1264 Core-to-Core and STG-to-STG passes can be run in any order, as many
1265 times as you like. Individual transformations can be turned on or
1268 Sadly, however, there are some interdependencies \& Things You Must
1269 Not Do. Here is the list.
1271 CORE-TO-CORE PASSES:
1273 \item[\tr{-fspecialise}:]
1274 The specialiser must have dependency-analysed input; but if you run
1275 the simplifier to do this, you must not let it toss away unused
1276 bindings! (The typechecker conveys some specialisation info via
1277 ``unused'' bindings...)
1279 \item[\tr{-ffloat-inwards}:]
1280 Floating inwards should be done before strictness analysis, because
1281 the latter will give better results.
1283 \item[\tr{-fstatic-args}:]
1284 The static-arguments-transformation pass {\em must} have the
1285 simplifier run right after it.
1287 \item[\tr{-fcalc-inlinings[12]}:]
1288 Not required, but there may be slight gains by re-simplifying after
1289 this is done. (You could then \tr{-fcalc-inlinings} again, just for
1292 \item[\tr{-ffull-laziness}:]
1293 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
1294 that's run. (Um, well, howzabout the simplifier just once more...)
1299 \item[\tr{-fupdate-analysis}:]
1300 It really really wants to be the last STG-to-STG pass that is run.
1308 # '-falways-float-lets-from-lets', # no idea why this was here (WDP 95/09)
1309 '-ffloat-lets-exposing-whnf',
1310 '-ffloat-primops-ok',
1312 # '-fdo-lambda-eta-expansion', # too complicated
1314 # '-flet-to-case', # no strictness analysis, so...
1315 $Oopt_PedanticBottoms,
1316 # $Oopt_MonadEtaExpansion, # no thanks
1317 '-fsimpl-uf-use-threshold0',
1318 '-fessential-unfoldings-only',
1319 # $Oopt_UnfoldingUseThreshold, # no thanks
1320 $Oopt_MaxSimplifierIterations,
1323 # '-ffull-laziness', # removed 95/04 WDP following Andr\'e's lead
1325 $Oopt_FinalStgProfilingMassage
1328 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
1330 # initial simplify: mk specialiser happy: minimum effort please
1334 '-fkeep-spec-pragma-ids', # required before specialisation
1335 '-fsimpl-uf-use-threshold0',
1336 '-fessential-unfoldings-only',
1337 '-fmax-simplifier-iterations1',
1338 $Oopt_PedanticBottoms,
1341 ($Oopt_DoSpecialise) ? (
1342 '-fspecialise-overloaded',
1343 $Oopt_SpecialiseUnboxed,
1347 '-fsimplify', # need dependency anal after specialiser ...
1348 '\(', # need tossing before calc-inlinings ...
1350 '-ffloat-lets-exposing-whnf',
1351 '-ffloat-primops-ok',
1355 '-fdo-eta-reduction',
1356 '-fdo-lambda-eta-expansion',
1358 $Oopt_PedanticBottoms,
1359 $Oopt_MonadEtaExpansion,
1360 $Oopt_UnfoldingUseThreshold,
1361 $Oopt_MaxSimplifierIterations,
1364 #LATER: '-fcalc-inlinings1', -- pointless for 2.01
1366 # ($Oopt_FoldrBuildWW) ? (
1367 # '-ffoldr-build-ww-anal',
1368 # '-ffoldr-build-worker-wrapper',
1372 # '-ffloat-lets-exposing-whnf',
1373 # '-ffloat-primops-ok',
1377 # '-fdo-eta-reduction',
1378 # '-fdo-lambda-eta-expansion',
1380 # $Oopt_PedanticBottoms,
1381 # $Oopt_MonadEtaExpansion,
1382 # $Oopt_UnfoldingUseThreshold,
1383 # $Oopt_MaxSimplifierIterations,
1387 # this pass-ordering sequence was agreed by Simon and Andr\'e
1388 # (WDP 94/07, 94/11).
1391 ($Oopt_FoldrBuild) ? (
1392 '-ffoldr-build-on', # desugar list comprehensions for foldr/build
1396 '-fignore-inline-pragma', # **** NB!
1397 '-fdo-foldr-build', # NB
1399 '-ffloat-lets-exposing-whnf',
1400 '-ffloat-primops-ok',
1404 '-fdo-eta-reduction',
1405 '-fdo-lambda-eta-expansion', # After full laziness
1407 $Oopt_PedanticBottoms,
1408 $Oopt_MonadEtaExpansion,
1409 $Oopt_UnfoldingUseThreshold,
1410 $Oopt_MaxSimplifierIterations,
1419 '-ffloat-lets-exposing-whnf',
1420 '-ffloat-primops-ok',
1424 '-fdo-eta-reduction',
1425 '-fdo-lambda-eta-expansion',
1427 ($Oopt_FoldrBuildInline),
1428 # you need to inline foldr and build
1429 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
1430 # but do reductions if you see them!
1431 $Oopt_PedanticBottoms,
1432 $Oopt_MonadEtaExpansion,
1433 $Oopt_UnfoldingUseThreshold,
1434 $Oopt_MaxSimplifierIterations,
1442 '-ffloat-lets-exposing-whnf',
1443 '-ffloat-primops-ok',
1447 '-fdo-eta-reduction',
1448 '-fdo-lambda-eta-expansion',
1450 '-flet-to-case', # Aha! Only done after strictness analysis
1451 $Oopt_PedanticBottoms,
1452 $Oopt_MonadEtaExpansion,
1453 $Oopt_UnfoldingUseThreshold,
1454 $Oopt_MaxSimplifierIterations,
1459 # Case-liberation for -O2. This should be after
1460 # strictness analysis and the simplification which follows it.
1462 # ( ($OptLevel != 2)
1464 # : "-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 \\)" ),
1466 # Final clean-up simplification:
1471 '-ffloat-lets-exposing-whnf',
1472 '-ffloat-primops-ok',
1476 '-fdo-eta-reduction',
1477 '-fdo-lambda-eta-expansion',
1480 '-fignore-inline-pragma', # **** NB!
1481 $Oopt_FoldrBuildInline,
1482 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
1483 # but still do reductions if you see them!
1484 $Oopt_PedanticBottoms,
1485 $Oopt_MonadEtaExpansion,
1486 $Oopt_UnfoldingUseThreshold,
1487 $Oopt_MaxSimplifierIterations,
1492 #LATER: '-fcalc-inlinings2', -- pointless for 2.01
1495 '-fupdate-analysis',
1497 $Oopt_FinalStgProfilingMassage,
1503 # SPECIAL FLAGS for -O2
1504 ($OptLevel == 2) ? (
1510 Sort out what we're going to do about optimising. First, the @hsc@
1511 flags and regular @cc@ flags to worry about:
1513 if ( $OptLevel <= 0 ) {
1515 # for this level, we tell the parser -fignore-interface-pragmas
1516 push(@HsC_flags, '-fignore-interface-pragmas');
1517 # and tell the compiler not to produce them
1518 push(@HsC_flags, '-fomit-interface-pragmas');
1520 &add_Hsc_flags( @HsC_minusNoO_flags );
1521 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
1523 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
1525 &add_Hsc_flags( @HsC_minusO_flags );
1526 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
1527 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
1528 # but it *is* useful in compiling the garbage collectors (so said
1529 # Patrick many moons ago...).
1531 } else { # -Ofile, then...
1533 &add_Hsc_flags( @HsC_minusO3_flags );
1534 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
1538 %************************************************************************
1540 \subsection{Check for consistency, etc.}
1542 %************************************************************************
1544 Sort out @$BuildTag@, @$PROFing@, @$CONCURing@, @$PARing@,
1545 @$GRANing@, @$TICKYing@:
1547 if ( $BuildTag ne '' ) {
1548 local($b) = $BuildDescr{$BuildTag};
1549 if ($CONCURing eq 'c') { print STDERR "$Pgm: Can't mix $b with -concurrent.\n"; exit 1; }
1550 if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
1551 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
1552 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
1554 # ok to have a user-way profiling build
1555 # eval the profiling opts ... but leave user-way BuildTag
1556 if ($PROFing eq 'p') { eval($EvaldSetupOpts{'_p'}); }
1558 } elsif ( $PROFing eq 'p' ) {
1559 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
1560 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
1561 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
1562 $BuildTag = ($CONCURing eq 'c') ? '_mr' : '_p' ; # possibly "profiled concurrent"...
1564 } elsif ( $CONCURing eq 'c' ) {
1565 if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix -concurrent with -parallel.\n"; exit 1; }
1566 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -concurrent with -gransim.\n"; exit 1; }
1567 $BuildTag = ($TICKYing eq 't') ? '_mt' : '_mc' ; # possibly "ticky concurrent"...
1568 # "profiled concurrent" already acct'd for...
1570 } elsif ( $PARing eq 'p' ) {
1571 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
1572 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
1575 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
1576 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
1580 } elsif ( $GRANing eq 'g' ) {
1581 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
1584 } elsif ( $TICKYing eq 't' ) {
1590 if ( $BuildTag ne '' ) { # something other than normal sequential...
1592 push(@HsP_flags, "-syshisuffix=$BuildTag.hi"); # use appropriate Prelude .hi files
1594 $HscOut = '-C='; # must go via C
1596 eval($EvaldSetupOpts{$BuildTag});
1600 Decide what the consistency-checking options are in force for this run:
1602 $HsC_consist_options = "${BuildTag},${DEBUGging}";
1603 $Cc_consist_options = "${BuildTag},${DEBUGging}";
1606 %************************************************************************
1608 \subsection{Add on machine-specific C-compiler flags}
1610 %************************************************************************
1612 Shove on magical machine-specific options. We use \tr{unshift} to
1613 stick them on the {\em front} of the arrays, so that ``later''
1614 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
1616 Note: a few ``always apply'' flags were set at the very beginning.
1619 if ($TargetPlatform =~ /^alpha-/) {
1620 # we know how to *mangle* asm for alpha
1621 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1622 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1623 unshift(@CcBoth_flags, ('-static'));
1625 } elsif ($TargetPlatform =~ /^hppa/) {
1626 # we know how to *mangle* asm for hppa
1627 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1628 unshift(@CcBoth_flags, ('-static'));
1629 # We don't put in '-mlong-calls', because it's only
1630 # needed for very big modules (sigh), and we don't want
1631 # to hobble ourselves further on all the other modules
1633 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
1634 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
1635 # (very nice, but too bad the HP /usr/include files don't agree.)
1637 } elsif ($TargetPlatform =~ /^i386-/) {
1638 # we know how to *mangle* asm for X86
1639 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1640 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1642 # -fno-defer-pop : basically the same game as for m68k
1644 # -fomit-frame-pointer : *must* ; because we're stealing
1645 # the fp (%ebp) for our register maps. *All* register
1646 # maps (in MachRegs.lh) must steal it.
1648 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1649 unshift(@CcRegd_flags, '-fomit-frame-pointer');
1650 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1652 } elsif ($TargetPlatform =~ /^m68k-/) {
1653 # we know how to *mangle* asm for m68k
1654 unshift (@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1655 unshift (@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1657 # -fno-defer-pop : for the .hc files, we want all the pushing/
1658 # popping of args to routines to be explicit; if we let things
1659 # be deferred 'til after an STGJUMP, imminent death is certain!
1661 # -fomit-frame-pointer : *don't*
1662 # It's better to have a6 completely tied up being a frame pointer
1663 # rather than let GCC pick random things to do with it.
1664 # (If we want to steal a6, then we would try to do things
1665 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1667 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1668 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1669 # maybe gives reg alloc a better time
1670 # also: -fno-defer-pop is not sufficiently well-behaved without it
1672 } elsif ($TargetPlatform =~ /^mips-/) {
1673 # we (hope to) know how to *mangle* asm for MIPSen
1674 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1675 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1676 unshift(@CcBoth_flags, ('-static'));
1678 } elsif ($TargetPlatform =~ /^powerpc-/) {
1679 # we know how to *mangle* asm for PowerPC
1680 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1681 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1682 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1683 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1685 } elsif ($TargetPlatform =~ /^sparc-/) {
1686 # we know how to *mangle* asm for SPARC
1687 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1688 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1693 Same unshifting magic, but for special linker flags.
1695 Should really be whether or not we prepend underscores to global symbols,
1696 not an architecture test. (JSM)
1699 $Under = ( $TargetPlatform =~ /^alpha-/
1700 || $TargetPlatform =~ /^hppa/
1701 || $TargetPlatform =~ /^mips-sgi-irix/
1702 || $TargetPlatform =~ /^powerpc-/
1703 || $TargetPlatform =~ /-solaris/
1704 || $TargetPlatform =~ /-linux$/
1710 '-u', "${Under}Main_" . $Ld_main . '_closure',
1712 # , '-u', "${Under}STbase_unsafePerformPrimIO_fast1"
1713 # , '-u', "${Under}Prelude_Z91Z93_closure" # i.e., []
1714 # , '-u', "${Under}Prelude_IZh_static_info"
1715 # , '-u', "${Under}Prelude_False_inregs_info"
1716 # , '-u', "${Under}Prelude_True_inregs_info"
1717 # , '-u', "${Under}Prelude_CZh_static_info"
1718 # , '-u', "${Under}DEBUG_REGS"
1720 ; # just for fun, now...
1723 %************************************************************************
1725 \subsection{Set up include paths and system-library enslurpment}
1727 %************************************************************************
1729 Now that we know what garbage-collector, etc., are required, we can
1730 finalise our list of libraries to slurp through, and generally Get
1734 # default includes must be added AFTER option processing
1735 if ( ! $(INSTALLING) ) {
1736 push (@Include_dir, "$TopPwd/$(CURRENT_DIR)/$(GHC_INCLUDESRC)");
1738 push (@Include_dir, "$InstLibDirGhc/includes");
1739 push (@Include_dir, "$InstDataDirGhc/includes");
1744 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1747 foreach $f (@SysLibrary) {
1748 next if $f =~ /_cbits/;
1749 $f .= $BuildTag if $f =~ /^-lHS/;
1752 # fiddle the TopClosure file name...
1753 $TopClosureFile =~ s/XXXX//;
1755 # Push library HSrts, plus boring clib bit
1756 push(@SysLibrary, "-lHSrts${BuildTag}");
1757 push(@SysLibrary, '-lHSclib');
1759 # Push the pvm libraries
1760 if ($BuildTag eq '_mp') {
1761 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1762 push(@SysLibrary, "-L$pvmlib", '-lpvm3', '-lgpvm3');
1763 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1764 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1765 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1766 push(@SysLibrary, '-lsocket', '-lnsl');
1770 # Push the GNU multi-precision arith lib; and the math library
1771 push(@SysLibrary, '-lgmp');
1772 push(@SysLibrary, '-lm');
1775 %************************************************************************
1777 \subsection{Check that this system was built to do what we are asking}
1779 %************************************************************************
1781 Before continuing we check that the appropriate build is available.
1784 die "$Pgm: no BuildAvail?? $BuildTag\n" if ! $BuildAvail{$BuildTag}; # sanity
1786 if ( $BuildAvail{$BuildTag} =~ /^NO$/ ) {
1787 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1788 "' \"build\" is not available with your GHC setup.\n";
1789 print STDERR "(It was not configured for it at your site.)\n";
1790 print STDERR $ShortUsage;
1795 %************************************************************************
1797 \subsection{Final miscellaneous setup bits before we start going}
1799 %************************************************************************
1801 Record largest specific heapsize, if any.
1803 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1804 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1805 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1806 push(@HsC_rts_flags, "-K$Specific_stk_size");
1808 # hack to avoid running hscpp
1809 $HsCpp = $Cat if ! $Cpp_flag_set;
1812 If no input or link files seen, then we let 'em feed in stdin; this is
1813 mainly for debugging.
1815 if ($#Input_file < 0 && $#Link_file < 0) {
1816 @Input_file = ( '-' );
1818 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1819 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n";
1820 while (<>) { print INF $_; }
1821 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1825 Tell the world who we are, if they asked.
1827 print STDERR "$(PROJECTNAME), version $(PROJECTVERSION) $(PROJECTPATCHLEVEL)\n"
1831 %************************************************************************
1833 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1835 %************************************************************************
1837 Process the input files; don't continue with linking if there are
1838 problems (global variable @$Status@ non-zero).
1840 foreach $ifile (@Input_file) {
1841 &ProcessInputFile($ifile);
1844 if ( $Status > 0 ) { # don't link if there were errors...
1845 print STDERR $ShortUsage;
1851 Link if appropriate.
1854 local($libdirs) = '';
1856 # glue them together:
1857 push(@UserLibrary_dir, @SysLibrary_dir);
1859 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1861 # for a linker, use an explicitly given one, or the going C compiler ...
1862 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1864 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1865 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1867 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $TopClosureFile $libdirs @UserLibrary @SysLibrary";
1868 &run_something($to_do, 'Linker');
1870 # finally, check the consistency info in the binary
1871 local($executable) = $Files_to_tidy[0];
1872 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1875 # dynamically load consistency-chking code; then do it.
1876 require('ghc-consist.prl')
1877 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1879 &chk_consistency_info ( $executable );
1882 # if PVM parallel stuff, we do truly weird things.
1883 # Essentially: (1) move the executable over to where PVM expects
1884 # to find it. (2) create a script in place of the executable
1885 # which will cause the program to be run, via SysMan.
1886 if ( $PARing eq 'p' ) {
1887 local($pvm_executable) = $executable;
1888 local($pvm_executable_base);
1890 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1891 local($pwd) = `pwd`;
1893 $pwd =~ s/^\/tmp_mnt//;
1894 $pvm_executable = "$pwd/$pvm_executable";
1897 $pvm_executable =~ s|/|=|g; # make /s into =s
1898 $pvm_executable_base = $pvm_executable;
1900 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1901 . "/$pvm_executable";
1903 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1905 # OK, now create the magic script for "$executable"
1906 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1907 print EXEC <<EOSCRIPT1;
1909 # =!=!=!=!=!=!=!=!=!=!=!
1910 # This script is automatically generated: DO NOT EDIT!!!
1911 # Generated by Glasgow Haskell, version $(PROJECTVERSION) $(PROJECTPATCHLEVEL)
1913 \$pvm_executable = '$pvm_executable';
1914 \$pvm_executable_base = '$pvm_executable_base';
1915 \$SysMan = '$SysMan';
1918 print EXEC <<\EOSCRIPT2;
1919 # first, some magical shortcuts to run "commands" on the binary
1921 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1923 system("$cmd $pvm_executable");
1927 # OK, really run it; process the args first
1928 $ENV{'PE'} = $pvm_executable_base;
1930 $nprocessors = 2; # the default
1934 # ToDo: handle --RTS
1935 args: while ($a = shift(@ARGV)) {
1936 if ( $a eq '+RTS' ) {
1938 } elsif ( $a eq '-RTS' ) {
1941 if ( $a eq '-d' && $in_RTS_args ) {
1943 } elsif ( $a =~ /^-N(\d+)/ && $in_RTS_args ) {
1946 push(@nonPVM_args, $a);
1950 local($return_val) = 0;
1951 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
1953 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
1956 close(EXEC) || die "Failed closing $executable\n";
1957 chmod 0755, $executable;
1961 # that... that's all, folks!
1963 exit $Status; # will still be 0 if all went well
1966 %************************************************************************
1968 \section[Driver-do-one-file]{How to process a single input file}
1970 %************************************************************************
1973 sub ProcessInputFile {
1974 local($ifile) = @_; # input file name
1975 local($ifile_root); # root of or basename of input file
1976 local($ofile_target); # ultimate output file we hope to produce
1977 # from input file (need to know for recomp
1978 # checking purposes)
1979 local($hifile_target);# ditto (but .hi file)
1982 Handle the weirdity of input from stdin.
1984 if ($ifile ne '-') {
1985 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1986 $ofile_target = # may be reset later...
1987 ($Specific_output_file ne '' && ! $Do_lnkr)
1988 ? $Specific_output_file
1989 : &odir_ify($ifile_root, 'o');
1990 $hifile_target= ($Specific_hi_file ne '')
1992 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1993 # NB: may change if $ifile_root isn't module name (??)
1995 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1996 $ifile_root = '_stdin';
1997 $ofile_target = '_stdout'; # gratuitous?
1998 $hifile_target= '_stdout'; # ditto?
2002 We need to decide what phases of the compilation system we will run
2003 over this file. The defaults are the ones established when processing
2004 flags. (That established what the last phase run for all files is.)
2006 We do the pre-recompilation-checker phases here; the rest later.
2010 Look at the suffix and decide what initial phases of compilation may
2011 be dropped off for this file. Also the rather boring business of
2012 which files are coming-in/going-out.
2014 Again, we'll do the post-recompilation-checker parts of this later.
2016 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
2017 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
2019 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
2021 : ( ($HscOut eq '-C=') ? 1 : 0 );
2022 local($do_as) = $Do_as;
2024 # names of the files to stuff between phases
2025 # defaults are temporaries
2026 local($in_lit2pgm) = $ifile;
2027 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
2028 local($hscpp_hsc) = "$Tmp_prefix.cpp";
2029 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
2030 local($hsc_hi) = "$Tmp_prefix.hi";
2031 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
2032 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
2033 local($as_out) = $ofile_target;
2035 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
2037 if ($ifile =~ /\.lhs$/) {
2038 ; # nothing to change
2039 } elsif ($ifile =~ /\.hs$/) {
2041 $lit2pgm_hscpp = $ifile;
2042 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
2043 $do_lit2pgm = 0; $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
2045 } elsif ($ifile =~ /\.c$/) {
2046 $do_lit2pgm = 0; $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
2047 $hsc_out = $ifile; $is_hc_file = 0;
2048 } elsif ($ifile =~ /\.s$/) {
2049 $do_lit2pgm = 0; $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
2051 } else { # don't know what it is, but nothing to do herein...
2052 $do_lit2pgm = 0; $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
2055 # OK, have a bash on the first two phases:
2056 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
2059 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc)
2063 We now think about whether to run hsc/cc or not (when hsc produces .s
2064 stuff, it effectively takes the place of both phases).
2066 To get the output file name right: for each phase that we are {\em
2067 not} going to run, set its input (i.e., the output of its preceding
2068 phase) to @"$ifile_root.<suffix>"@.
2070 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
2072 if (! $do_cc && ! $do_as) { # stopping after hsc
2073 $hsc_out = ($Specific_output_file ne '')
2074 ? $Specific_output_file
2075 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
2077 $ofile_target = $hsc_out; # reset
2080 if (! $do_as) { # stopping after gcc (or hsc)
2081 $cc_as = ($Specific_output_file ne '')
2082 ? $Specific_output_file
2083 : &odir_ify($ifile_root, ( $Only_preprocess_C ) ? 'i' : 's');
2085 $ofile_target = $cc_as; # reset
2091 Now the Haskell compiler, C compiler, and assembler
2095 &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root,
2096 $ofile_target, $hifile_target);
2100 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
2101 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root);
2104 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
2106 &runAs($as_out, $ifile_root) if $do_as;
2109 Finally, decide what to queue up for linker input.
2111 # tentatively assume we will eventually produce linker input:
2112 push(@Link_file, &odir_ify($ifile_root, 'o'));
2114 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
2116 if ( $ifile !~ /\.(lhs|hs|hc|c|s)$/ && $ifile !~ /_hc$/ ) {
2117 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n"
2118 if $ifile !~ /\.a$/;
2120 # oops; we tentatively pushed the wrong thing; fix & do the right thing
2121 pop(@Link_file); push(@Link_file, $ifile);
2124 } # end of ProcessInputFile
2127 %************************************************************************
2129 \section[Driver-run-phases]{Routines to run the various phases}
2131 %************************************************************************
2135 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
2137 local($to_do) = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && ".
2138 "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
2139 @Files_to_tidy = ( $lit2pgm_hscpp );
2141 &run_something($to_do, 'literate pre-processor');
2147 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
2151 if ($HsCpp eq $Cat) {
2152 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $hscpp_hsc && ".
2153 "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
2154 @Files_to_tidy = ( $hscpp_hsc );
2155 &run_something($to_do, 'Ineffective C pre-processor');
2157 local($includes) = '-I' . join(' -I',@Include_dir);
2158 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $hscpp_hsc && ".
2159 "$HsCpp $Verbose $genSPECS_flag @HsCpp_flags -D__HASKELL1__=$Haskell1Version -D__GLASGOW_HASKELL__=$GhcVersionInfo $includes $lit2pgm_hscpp >> $hscpp_hsc";
2160 @Files_to_tidy = ( $hscpp_hsc );
2161 &run_something($to_do, 'Haskellised C pre-processor');
2167 sub runHscAndProcessInterfaces {
2168 local($ifile, $hscpp_hsc, $ifiel_root, $ofile_target, $hifile_target) = @_;
2170 # $ifile is the original input file
2171 # $hscpp_hsc post-unlit, post-cpp, etc., input file
2172 # $ifile_root input filename minus suffix
2173 # $ofile_target the output file that we ultimately hope to produce
2174 # $hifile_target the .hi file ... (ditto)
2176 local($source_unchanged) = 1;
2178 # Check if the source file is up to date relative to the target; in
2179 # that case we say "source is unchanged" and let the compiler bale out
2180 # early if the import usage information allows it.
2182 ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size,
2183 $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile);
2185 if ( ! -f $ofile_target ) {
2186 print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n";
2187 $source_unchanged = 0;
2190 ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size,
2191 $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test
2193 if ( ! -f $hifile_target ) {
2194 print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n";
2195 $source_unchanged = 0;
2198 ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size,
2199 $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test
2201 if ($i_mtime > $o_mtime) {
2202 print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n";
2203 $source_unchanged = 0;
2206 # So if source_unchanged is still "1", we pass on the good news to the compiler
2207 # The -recomp flag can disable this, forcing recompilation
2208 if ($Do_recomp_chkr && $source_unchanged) {
2209 push(@HsC_flags, '-fsource-unchanged');
2214 &runHsc($ifile_root, $hsc_out, $hsc_hi, $going_interactive);
2216 # See if it baled out early, saying nothing needed doing.
2217 # We work this out by seeing if it created an output .hi file
2219 if ( ! -f $hsc_hi ) {
2220 # Doesn't exist, so we baled out early.
2221 # Tell the C compiler and assembler not to run
2222 $do_cc = 0; $do_as = 0;
2224 # Update dependency info
2225 &run_something("touch $ofile_target", "Touch $ofile_target, to propagate dependencies");
2229 # Didn't bale out early (new .hi file) so we thunder on
2231 # If non-interactive, heave in the consistency info at the end
2232 # NB: pretty hackish (depends on how $output is set)
2233 if ( ! $going_interactive ) {
2234 if ( $HscOut eq '-C=' ) {
2235 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
2237 } elsif ( $HscOut eq '-S=' ) {
2238 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
2239 $consist =~ s/,/./g;
2240 $consist =~ s/\//./g;
2241 $consist =~ s/-/_/g;
2242 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
2243 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
2245 &run_something($to_do, 'Pin on Haskell consistency info');
2249 # Interface-handling is important enough to live off by itself
2250 require('ghc-iface.prl')
2251 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
2253 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
2255 # save a copy of the .hc file, even if we are carrying on...
2256 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
2257 local($to_do) = "$Rm $ifile_root.hc; $Cp $hsc_out $ifile_root.hc";
2258 &run_something($to_do, 'Saving copy of .hc file');
2261 # save a copy of the .s file, even if we are carrying on...
2262 if ($HscOut eq '-S=' && $do_as && $Keep_s_file_too) {
2263 local($to_do) = "$Rm $ifile_root.s; $Cp $hsc_out $ifile_root.s";
2264 &run_something($to_do, 'Saving copy of .s file');
2267 # if we're going to split up object files,
2268 # we inject split markers into the .hc file now
2269 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
2270 &inject_split_markers ( $hsc_out );
2279 local($ifile_root, $hsc_out, $hsc_hi, $going_interactive) = @_;
2281 # prepend comma to HsP flags (so hsc can tell them apart...)
2282 foreach $a ( @HsP_flags ) { $a = ",$a" unless $a =~ /^,/; }
2284 &makeHiMap() unless $HiMapDone;
2285 # print STDERR "HiIncludes: $HiIncludeString\n";
2286 push(@HsC_flags, "-himap=$HiIncludeString");
2287 # push(@HsC_flags, "-himap=$HiMapFile");
2289 # here, we may produce .hc/.s and/or .hi files
2290 local($output) = '';
2291 @Files_to_tidy = ();
2293 if ( $going_interactive ) {
2294 # don't need .hi unless going to show it on stdout:
2295 $ProduceHi = '-nohifile=' if ! $HiOnStdout;
2296 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
2299 # set up for producing output/.hi; note that flag twiddling
2300 # may mean that nothing will actually be produced:
2301 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out";
2302 @Files_to_tidy = ( $hsc_hi, $hsc_out );
2304 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
2305 if ( $CollectingGCstats ) {
2306 push(@HsC_rts_flags, "-S$ifile_root.stat");
2307 push(@Files_to_tidy, "$ifile_root.stat");
2310 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
2311 # emit nofibbish time/bytes-alloc stats to stderr;
2312 # see later .stat file post-processing
2313 push(@HsC_rts_flags, "-s$Tmp_prefix.stat");
2314 push(@Files_to_tidy, "$Tmp_prefix.stat");
2318 if ($Specific_dump_file ne '') {
2319 $dump = "2>> $Specific_dump_file";
2320 $Using_dump_file = 1;
2324 $to_do = "$HsC @HsP_flags ,$hscpp_hsc $dump @HsC_flags $CoreLint $Verbose $output +RTS @HsC_rts_flags";
2325 &run_something($to_do, 'Haskell compiler');
2327 # finish business w/ nofibbish time/bytes-alloc stats
2328 &process_ghc_timings() if $CollectGhcTimings;
2332 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
2333 of (module-name, pathname) pairs, one per line, separated by a space.
2338 $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC
2342 # collect in %HiMap; write later; also used elsewhere in driver
2344 local($mod, $path, $d, $e);
2346 foreach $d ( @Import_dir ) {
2347 if ($HiIncludeString) { $HiIncludeString = "$HiIncludeString:$d";
2348 } else { $HiIncludeString = $d; }
2350 opendir(DIR, $d) || &tidy_up_and_die(1,"$Pgm: error when reading directory: $d\n");
2351 local(@entry) = readdir(DIR);
2352 foreach $e ( @entry ) {
2353 next unless $e =~ /\b([A-Z][A-Za-z0-9_]*)\.$HiSuffix$/o;
2358 if ( ! defined($HiMap{$mod}) ) {
2359 $HiMap{$mod} = $path;
2361 &already_mapped_err($mod, $HiMap{$mod}, $path);
2364 closedir(DIR); # || &tidy_up_and_die(1,"$Pgm: error when closing directory: $d\n");
2367 foreach $d ( @SysImport_dir ) {
2368 if ($HiIncludeString) { $HiIncludeString = "$HiIncludeString:$d";
2369 } else { $HiIncludeString = $d; }
2371 opendir(DIR, $d) || &tidy_up_and_die(1,"$Pgm: error when reading directory: $d\n");
2372 local(@entry) = readdir(DIR);
2373 foreach $e ( @entry ) {
2374 next unless $e =~ /([A-Z][A-Za-z0-9_]*)\.$SysHiSuffix$/o;
2375 next if $NoImplicitPrelude && $e =~ /Prelude\.$SysHiSuffix$/o;
2381 if ( ! defined($HiMap{$mod}) ) {
2382 $HiMap{$mod} = $path;
2383 } elsif ( $mod ne 'Main' ) { # saves useless warnings...
2384 &already_mapped_err($mod, $HiMap{$mod}, $path);
2387 closedir(DIR); # || &tidy_up_and_die(1,"$Pgm: error when closing directory: $d\n");
2390 $HiMapFile = "$Tmp_prefix.himap";
2392 open(HIMAP, "> $HiMapFile") || &tidy_up_and_die(1,"$Pgm: can't open $HiMapFile\n");
2393 foreach $d (keys %HiMap) {
2394 print HIMAP $d, ' ', $HiMap{$d}, "\n";
2396 close(HIMAP) || &tidy_up_and_die(1,"$Pgm: error when closing $HiMapFile\n");
2401 sub already_mapped_err {
2402 local($mod, $mapped_to, $path) = @_;
2404 # OK, it isn't really an error if $mapped_to and $path turn
2405 # out to be the same thing.
2406 ($m_dev,$m_ino,$m_mode,$m_nlink,$m_uid,$m_gid,$m_rdev,$m_size,
2407 $m_atime,$m_mtime,$m_ctime,$m_blksize,$m_blocks) = stat($mapped_to);
2408 ($p_dev,$p_ino,$p_mode,$p_nlink,$p_uid,$p_gid,$p_rdev,$p_size,
2409 $p_atime,$p_mtime,$p_ctime,$p_blksize,$p_blocks) = stat($path);
2411 return if $m_ino == $p_ino; # same inode number
2413 print STDERR "$Pgm: module $mod already mapped to $mapped_to";
2414 print STDERR ";\n\tignoring: $path\n";
2418 %************************************************************************
2420 \section[Driver-misc-utils]{Miscellaneous utilities}
2422 %************************************************************************
2424 %************************************************************************
2426 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
2428 %************************************************************************
2432 local($ofile,$def_suffix) = @_;
2434 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
2438 local($orig_file, $def_suffix) = @_;
2439 if ($Specific_output_dir eq '') { # do nothing
2440 &osuf_ify($orig_file, $def_suffix);
2442 local ($orig_file_only);
2443 ($orig_file_only = $orig_file) =~ s|.*/||;
2444 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
2451 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
2453 local($includes) = '-I' . join(' -I', @Include_dir);
2456 local($c_flags) = "@CcBoth_flags";
2457 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2459 # "input" files to use that are not in some weird directory;
2460 # to help C compilers grok .hc files [ToDo: de-hackify]
2461 local($cc_help) = "ghc$$.c";
2462 local($cc_help_s) = "ghc$$.s";
2465 $s_output = ($is_hc_file || $TargetPlatform =~ /^(hppa|i386)/) ? $cc_as_o : $cc_as;
2466 $c_flags .= " @CcRegd_flags";
2467 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2469 # C compiler won't like the .hc extension. So we create
2470 # a tmp .c file which #include's the needful.
2471 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2472 if ( $is_hc_file ) {
2474 #ifdef __STG_GCC_REGS__
2475 # if ! (defined(MAIN_REG_MAP) || defined(MARK_REG_MAP) || defined(SCAN_REG_MAP) || defined(SCAV_REG_MAP) || defined(FLUSH_REG_MAP))
2476 # define MAIN_REG_MAP
2479 #include "stgdefs.h"
2481 # user may have asked for #includes to be injected...
2482 print TMP @CcInjects if $#CcInjects >= 0;
2484 # heave in the consistency info
2485 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2487 # and #include the real source
2488 print TMP "#include \"$hsc_out\"\n";
2489 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2491 local($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 )";
2492 # note: __GLASGOW_HASKELL__ is pointedly *not* #defined at the C level.
2493 if ( $Only_preprocess_C ) { # HACK ALERT!
2494 $to_do =~ s/ -S\b//g;
2496 @Files_to_tidy = ( $cc_help, $cc_help_s, $s_output );
2497 $PostprocessCcOutput = 1; # hack, dear hack...
2498 &run_something($to_do, 'C compiler');
2499 $PostprocessCcOutput = 0;
2500 unlink($cc_help, $cc_help_s);
2506 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2508 if ( $is_hc_file ) {
2509 # dynamically load assembler-fiddling code, which we are about to use:
2510 require('ghc-asm.prl')
2511 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2514 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2517 # post-process the assembler [.hc files only]
2518 &mangle_asm($cc_as_o, $cc_as);
2521 #OLD: local($target) = 'oops';
2522 #OLD: $target = '-alpha' if $TargetPlatform =~ /^alpha-/;
2523 #OLD: $target = '-hppa' if $TargetPlatform =~ /^hppa/;
2524 #OLD: $target = '-old-asm' if $TargetPlatform =~ /^i386-/;
2525 #OLD: $target = '-m68k' if $TargetPlatform =~ /^m68k-/;
2526 #OLD: $target = '-mips' if $TargetPlatform =~ /^mips-/;
2527 #OLD: $target = '' if $TargetPlatform =~ /^powerpc-/;
2528 #OLD: $target = '-solaris' if $TargetPlatform =~ /^sparc-sun-solaris2/;
2529 #OLD: $target = '-sparc' if $TargetPlatform =~ /^sparc-sun-sunos4/;
2531 #OLD: if ( $target ne '' ) {
2532 #OLD: require("ghc-asm$target.prl")
2533 #OLD: || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm$target.prl!\n");
2534 #OLD: &mangle_asm($cc_as_o, "$cc_as-2"); # the OLD one!
2535 #OLD: &run_something("$Cmp -s $cc_as-2 $cc_as || $Diff $cc_as-2 $cc_as 1>&2 || exit 0",
2536 #OLD: "Diff'ing old and new mangled .s files"); # NB: to stderr
2539 } elsif ($TargetPlatform =~ /^hppa/) {
2540 # minor mangling of non-threaded files for hp-pa only
2541 require('ghc-asm.prl')
2542 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2543 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2545 } elsif ($TargetPlatform =~ /^i386/) {
2546 # extremely-minor OFFENSIVE mangling of non-threaded just one file
2547 require('ghc-asm.prl')
2548 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2549 &mini_mangle_asm_i386($cc_as_o, $cc_as);
2552 # save a copy of the .s file, even if we are carrying on...
2553 if ($do_as && $Keep_s_file_too) {
2554 local($to_do) = "$Rm $ifile_root.s; $Cp $cc_as $ifile_root.s";
2555 &run_something($to_do, 'Saving copy of .s file');
2562 local($as_out, $ifile_root) = @_;
2564 local($asmblr) = ( $As ) ? $As : $CcRegd;
2566 if ( ! $SplitObjFiles ) {
2567 local($to_do) = "$asmblr -o $as_out -c @As_flags $cc_as";
2568 @Files_to_tidy = ( $as_out );
2569 &run_something($to_do, 'Unix assembler');
2571 } else { # more complicated split-ification...
2573 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2575 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2576 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2577 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2578 @Files_to_tidy = ( $split_out );
2580 &run_something($to_do, 'Unix assembler');
2586 %************************************************************************
2588 \subsection[Driver-run-something]{@run_something@: Run a phase}
2590 %************************************************************************
2594 local($str_to_do, $tidy_name) = @_;
2596 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2597 print STDERR "$str_to_do\n" if $Verbose;
2599 if ($Using_dump_file) {
2600 open(DUMP, ">> $Specific_dump_file")
2601 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2602 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2604 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2607 local($return_val) = 0;
2608 system("$Time $str_to_do");
2611 if ( $PostprocessCcOutput ) { # hack, continued
2612 open(CCOUT, "< $Tmp_prefix.ccout")
2613 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2615 next if /attribute directive ignored/;
2616 next if /call-clobbered/;
2617 next if /from .*COptRegs\.lh/;
2618 next if /from .*(stg|rts)defs\.h:/;
2619 next if /from ghc\d+.c:\d+:/;
2620 next if /from .*\.lc/;
2621 next if /from .*SMinternal\.l?h/;
2622 next if /ANSI C does not support \`long long\'/;
2623 next if /warning:.*was declared \`extern\' and later \`static\'/;
2624 next if /warning: assignment discards \`const\' from pointer target type/;
2625 next if /: At top level:$/;
2626 next if /: In function \`.*\':$/;
2627 next if /\`ghc_cc_ID\' defined but not used/;
2630 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2633 if ($return_val != 0) {
2634 if ($Using_dump_file) {
2635 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2638 &tidy_up_and_die($return_val, '');
2640 $Using_dump_file = 0;
2644 %************************************************************************
2646 \subsection[Driver-ghctiming]{Emit nofibbish GHC timings}
2648 %************************************************************************
2650 NB: nearly the same as in @runstdtest@ script.
2653 sub process_ghc_timings {
2654 local($StatsFile) = "$Tmp_prefix.stat";
2655 local($SysSpecificTiming) = 'ghc';
2657 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2658 local($tot_live) = 0; # for calculating avg residency
2661 $tot_live += $1 if /^\s*\d+\s+\d+\s+\d+\.\d+\%\s+(\d+)\s+\d+\.\d+\%/;
2663 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2665 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2666 $MaxResidency = $1; $ResidencySamples = $2;
2669 $GCs = $1 if /^\s*([0-9,]+) garbage collections? performed/;
2671 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2672 $InitTime = $1; $InitElapsed = $2;
2673 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2674 $MutTime = $1; $MutElapsed = $2;
2675 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2676 $GcTime = $1; $GcElapsed = $2;
2679 close(STATS) || die "Failed when closing $StatsFile\n";
2680 if ( defined($ResidencySamples) && $ResidencySamples > 0 ) {
2681 $AvgResidency = int ($tot_live / $ResidencySamples) ;
2684 # warn about what we didn't find
2685 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2686 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2687 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2688 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2689 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2690 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2691 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2692 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2694 # things we didn't necessarily expect to find
2695 $MaxResidency = 0 unless defined($MaxResidency);
2696 $AvgResidency = 0 unless defined($AvgResidency);
2697 $ResidencySamples = 0 unless defined($ResidencySamples);
2700 $BytesAlloc =~ s/,//g;
2701 $MaxResidency =~ s/,//g;
2703 $InitTime =~ s/,//g;
2704 $InitElapsed =~ s/,//g;
2706 $MutElapsed =~ s/,//g;
2708 $GcElapsed =~ s/,//g;
2710 # print out what we found
2711 print STDERR "<<$SysSpecificTiming: ",
2712 "$BytesAlloc bytes, $GCs GCs, $AvgResidency/$MaxResidency avg/max bytes residency ($ResidencySamples samples), $InitTime INIT ($InitElapsed elapsed), $MutTime MUT ($MutElapsed elapsed), $GcTime GC ($GcElapsed elapsed)",
2713 " :$SysSpecificTiming>>\n";
2720 %************************************************************************
2722 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2724 %************************************************************************
2728 local($to_do) = "\n$Rm $Tmp_prefix*";
2729 if ( $Tmp_prefix !~ /^\s*$/ ) {
2730 print STDERR "$to_do\n" if $Verbose;
2735 sub tidy_up_and_die {
2736 local($return_val, $msg) = @_;
2738 # delete any files to tidy
2739 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2740 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2744 exit (($return_val == 0) ? 0 : 1);
2748 %************************************************************************
2750 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2752 %************************************************************************
2754 Some command-line arguments take an argument, e.g.,
2755 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2756 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2757 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2759 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2760 gobble the second argument (and probably set the heapsize to something
2764 local($option, $rest_of_arg) = @_;
2767 return($rest_of_arg);
2768 } elsif ($#ARGV >= 0) {
2769 local($temp) = $ARGV[0]; shift(@ARGV);
2772 print STDERR "$Pgm: no argument following $option option\n";
2783 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2785 foreach $f ( @HsC_antiflags ) {
2786 return(0) if $flag eq $f;
2788 # foreach $f ( @HsC_flags ) {
2789 # return(0) if $flag eq $f;
2794 sub squashHscFlag { # pretty terrible
2798 foreach $f ( @HsC_flags ) {
2799 if ($flag eq $f) { $f = ''; }
2807 foreach $f ( @flags ) {
2808 push( @HsC_flags, $f ) if &isntAntiFlag($f);
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