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)';
111 # $InstSysLibDir = '$(INSTLIBDIR_HSLIBS)'; ToDo ToDo
112 $InstSysLibDir = '$(TOP_PWD)/hslibs';
114 $TopPwd = $ENV{'GLASGOW_HASKELL_ROOT'};
116 if ('$(INSTLIBDIR_GHC)' =~ /.*(\/lib\/ghc\/\d\.\d\d\/[^-]-[^-]-[^-]\/.*)/) {
117 $InstLibDirGhc = $ENV{'GLASGOW_HASKELL_ROOT'} . $1;
119 print STDERR "GLASGOW_HASKELL_ROOT environment variable is set;\nBut can't untangle $(INSTLIBDIR_GHC).\n(Installation error)\n";
123 if ('$(INSTDATADIR_GHC)' =~ /.*(\/lib\/ghc\/\d\.\d\d\/.*)/) {
124 $InstDataDirGhc = $ENV{'GLASGOW_HASKELL_ROOT'} . $2;
126 print STDERR "GLASGOW_HASKELL_ROOT environment variable is set;\nBut can't untangle $(INSTDATADIR_GHC).\n(Installation error)\n";
131 $Status = 0; # just used for exit() status
134 # set up signal handler
135 sub quit_upon_signal { &tidy_up_and_die(1, ''); }
136 $SIG{'INT'} = 'quit_upon_signal';
137 $SIG{'QUIT'} = 'quit_upon_signal';
139 # where to get "require"d .prl files at runtime (poor man's dynamic loading)
140 # (use LIB, not DATA, because we can't be sure of arch-independence)
141 @INC = ( ( $(INSTALLING) ) ? $InstLibDirGhc
142 : "$TopPwd/$(CURRENT_DIR)" );
144 if ( $ENV{'TMPDIR'} ) { # where to make tmp file names
145 $Tmp_prefix = ($ENV{'TMPDIR'} . "/ghc$$");
147 $Tmp_prefix ="$(TMPDIR)/ghc$$";
148 $ENV{'TMPDIR'} = '$(TMPDIR)'; # set the env var as well
151 @Files_to_tidy = (); # files we nuke in the case of abnormal termination
153 $Unlit = ( $(INSTALLING) ) ? "$InstLibDirGhc/unlit"
154 : "$TopPwd/$(CURRENT_DIR)/$(GHC_UNLIT)";
159 $Diff = '$(CONTEXT_DIFF)';
164 $HsCpp = # but this is re-set to "cat" (after options) if -cpp not seen
165 ( $(INSTALLING) ) ? "$InstLibDirGhc/hscpp"
166 : "$TopPwd/$(CURRENT_DIR)/$(GHC_HSCPP)";
168 $genSPECS_flag = ''; # See ../utils/hscpp/hscpp.prl
170 $HsC = ( $(INSTALLING) ) ? "$InstLibDirGhc/hsc"
171 : "$TopPwd/$(CURRENT_DIR)/$(GHC_HSC)";
173 $SysMan = ( $(INSTALLING) ) ? "$InstLibDirGhc/SysMan"
174 : "$TopPwd/$(CURRENT_DIR)/$(GHC_SYSMAN)";
176 # HsC_rts_flags: if we want to talk to the LML runtime system
177 # NB: we don't use powers-of-2 sizes, because this may do
178 # terrible things to cache behavior.
179 $Specific_heap_size = 6 * 1000 * 1000;
180 $Specific_stk_size = 1000 * 1000;
181 $Scale_sizes_by = 1.0;
184 @HsP_flags = (); # these are the flags destined solely for
185 # the flex/yacc parser
190 The optimisations/etc to be done by the compiler are {\em normally}
191 expressed with a \tr{-O} (or \tr{-O2}) flag, or by its absence.
194 $OptLevel = 0; # no -O == 0; -O == 1; -O2 == 2; -Ofile == 3
195 $MinusO2ForC = 0; # set to 1 if -O2 should be given to C compiler
196 $StolenX86Regs = 4; # **HACK*** of the very worst sort
200 These variables represent parts of the -O/-O2/etc ``templates,''
201 which are filled in later, using these.
202 These are the default values, which may be changed by user flags.
204 $Oopt_UnfoldingUseThreshold = '-fsimpl-uf-use-threshold3';
205 $Oopt_MaxSimplifierIterations = '-fmax-simplifier-iterations4';
206 $Oopt_PedanticBottoms = '-fpedantic-bottoms'; # ON by default
207 $Oopt_MonadEtaExpansion = '';
208 $Oopt_FinalStgProfilingMassage = '';
210 $Oopt_SpecialiseUnboxed = '';
211 $Oopt_DoSpecialise = ''; # ToDo:LATER: '-fspecialise';
212 $Oopt_FoldrBuild = 0; # *Off* by default!
213 $Oopt_FB_Support = ''; # was '-fdo-arity-expand';
214 #$Oopt_FoldrBuildWW = 0; # Off by default
215 $Oopt_FoldrBuildInline = ''; # was '-fdo-inline-foldr-build';
218 Things to do with C compilers/etc:
221 @CcBoth_flags = ('-S'); # flags for *any* C compilation
224 # GCC flags: those for all files, those only for .c files; those only for .hc files
225 @CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__');
226 @CcRegd_flags_c = ();
227 @CcRegd_flags_hc = ();
229 $As = ''; # "assembler" is normally GCC
232 $Lnkr = ''; # "linker" is normally GCC
235 # 'nm' is used for consistency checking (ToDo: mk-world-ify)
236 # ToDo: check the OS or something ("alpha" is surely not the crucial question)
237 $Nm = ($TargetPlatform =~ /^alpha-/) ? 'nm -B' : 'nm';
240 What options \tr{-user-setup-a} turn into (user-defined ``packages''
241 of options). Note that a particular user-setup implies a particular
242 Prelude ({\em including} its interface file(s)).
244 $BuildTag = ''; # default is sequential build w/ Appel-style GC
246 %BuildAvail = ('', '$(GHC_BUILD_FLAG_normal)',
247 '_p', '$(GHC_BUILD_FLAG_p)',
248 '_t', '$(GHC_BUILD_FLAG_t)',
249 '_u', '$(GHC_BUILD_FLAG_u)',
250 '_mc', '$(GHC_BUILD_FLAG_mc)',
251 '_mr', '$(GHC_BUILD_FLAG_mr)',
252 '_mt', '$(GHC_BUILD_FLAG_mt)',
253 '_mp', '$(GHC_BUILD_FLAG_mp)',
254 '_mg', '$(GHC_BUILD_FLAG_mg)',
255 '_2s', '$(GHC_BUILD_FLAG_2s)',
256 '_1s', '$(GHC_BUILD_FLAG_1s)',
257 '_du', '$(GHC_BUILD_FLAG_du)',
258 '_a', '$(GHC_BUILD_FLAG_a)',
259 '_b', '$(GHC_BUILD_FLAG_b)',
260 '_c', '$(GHC_BUILD_FLAG_c)',
261 '_d', '$(GHC_BUILD_FLAG_d)',
262 '_e', '$(GHC_BUILD_FLAG_e)',
263 '_f', '$(GHC_BUILD_FLAG_f)',
264 '_g', '$(GHC_BUILD_FLAG_g)',
265 '_h', '$(GHC_BUILD_FLAG_h)',
266 '_i', '$(GHC_BUILD_FLAG_i)',
267 '_j', '$(GHC_BUILD_FLAG_j)',
268 '_k', '$(GHC_BUILD_FLAG_k)',
269 '_l', '$(GHC_BUILD_FLAG_l)',
270 '_m', '$(GHC_BUILD_FLAG_m)',
271 '_n', '$(GHC_BUILD_FLAG_n)',
272 '_o', '$(GHC_BUILD_FLAG_o)',
273 '_A', '$(GHC_BUILD_FLAG_A)',
274 '_B', '$(GHC_BUILD_FLAG_B)' );
276 %BuildDescr = ('', 'normal sequential',
278 '_t', 'ticky-ticky profiling',
279 #OLD: '_u', 'unregisterized (using portable C only)',
281 '_mr', 'profiled concurrent',
282 '_mt', 'ticky concurrent',
287 '_du', 'dual-mode GC',
304 '_B', 'user way B' );
306 # these are options that are "fed back" through the option processing loop
307 %UserSetupOpts = ('_a', '$(GHC_BUILD_OPTS_a)',
308 '_b', '$(GHC_BUILD_OPTS_b)',
309 '_c', '$(GHC_BUILD_OPTS_c)',
310 '_d', '$(GHC_BUILD_OPTS_d)',
311 '_e', '$(GHC_BUILD_OPTS_e)',
312 '_f', '$(GHC_BUILD_OPTS_f)',
313 '_g', '$(GHC_BUILD_OPTS_g)',
314 '_h', '$(GHC_BUILD_OPTS_h)',
315 '_i', '$(GHC_BUILD_OPTS_i)',
316 '_j', '$(GHC_BUILD_OPTS_j)',
317 '_k', '$(GHC_BUILD_OPTS_k)',
318 '_l', '$(GHC_BUILD_OPTS_l)',
319 '_m', '$(GHC_BUILD_OPTS_m)',
320 '_n', '$(GHC_BUILD_OPTS_n)',
321 '_o', '$(GHC_BUILD_OPTS_o)',
322 '_A', '$(GHC_BUILD_OPTS_A)',
323 '_B', '$(GHC_BUILD_OPTS_B)',
325 # the GC ones don't have any "fed back" options
330 # per-build code fragments which are eval'd
331 %EvaldSetupOpts = ('', '', # this one must *not* be set!
333 # profiled sequential
334 '_p', 'push(@HsC_flags, \'-fscc-profiling\');
335 push(@CcBoth_flags, \'-DPROFILING\');',
338 #push(@CcBoth_flags, '-DPROFILING_DETAIL_COUNTS');
340 # ticky-ticky sequential
341 '_t', 'push(@HsC_flags, \'-fticky-ticky\');
342 push(@CcBoth_flags, \'-DTICKY_TICKY\');',
344 #OLD: # unregisterized (ToDo????)
348 '_mc', '$StkChkByPageFaultOK = 0;
349 push(@HsC_flags, \'-fconcurrent\');
350 push(@HsCpp_flags,\'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\');
351 push(@Cpp_define, \'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\');',
353 # profiled concurrent
354 '_mr', '$StkChkByPageFaultOK = 0;
355 push(@HsC_flags, \'-fconcurrent\', \'-fscc-profiling\');
356 push(@HsCpp_flags,\'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\');
357 push(@Cpp_define, \'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\', \'-DPROFILING\');',
359 # ticky-ticky concurrent
360 '_mt', '$StkChkByPageFaultOK = 0;
361 push(@HsC_flags, \'-fconcurrent\', \'-fticky-ticky\');
362 push(@HsCpp_flags,\'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\');
363 push(@Cpp_define, \'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\', \'-DTICKY_TICKY\');',
366 '_mp', '$StkChkByPageFaultOK = 0;
367 push(@HsC_flags, \'-fconcurrent\');
368 push(@HsCpp_flags,\'-D__PARALLEL_HASKELL__\', \'-DPAR\');
369 push(@Cpp_define, \'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\', \'-DPAR\');',
372 '_mg', '$StkChkByPageFaultOK = 0;
373 push(@HsC_flags, \'-fconcurrent\', \'-fgransim\');
374 push(@HsCpp_flags,\'-D__GRANSIM__\', \'-DGRAN\');
375 push(@Cpp_define, \'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\', \'-DGRAN\');',
377 '_2s', 'push (@CcBoth_flags, \'-DGC2s\');',
378 '_1s', 'push (@CcBoth_flags, \'-DGC1s\');',
379 '_du', 'push (@CcBoth_flags, \'-DGCdu\');',
381 '_a', '', # these user-way guys should not be set!
400 Import/include directories (\tr{-I} options) are sufficiently weird to
401 require special handling.
403 @Import_dir = ('.'); #-i things
404 @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing
406 @SysImport_dir = ( $(INSTALLING) )
407 ? ( "$InstDataDirGhc/imports" )
408 : ( "$TopPwd/$(CURRENT_DIR)/$(GHC_LIBSRC)/prelude"
409 , "$TopPwd/$(CURRENT_DIR)/$(GHC_LIBSRC)/required"
410 , "$TopPwd/$(CURRENT_DIR)/$(GHC_LIBSRC)/concurrent" );
412 $GhcVersionInfo = int ($(PROJECTVERSION) * 100);
413 $Haskell1Version = 3; # i.e., Haskell 1.3
416 @UserLibrary_dir= (); #-L things;...
417 @UserLibrary = (); #-l things asked for by the user
419 @SysLibrary_dir = ( ( $(INSTALLING) ) #-syslib things supplied by the system
421 : ( "$TopPwd/$(CURRENT_DIR)/$(GHC_RUNTIMESRC)"
422 , "$TopPwd/$(CURRENT_DIR)/$(GHC_RUNTIMESRC)/gmp"
423 , "$TopPwd/$(CURRENT_DIR)/$(GHC_LIBSRC)"
424 , "$TopPwd/$(CURRENT_DIR)/$(GHC_LIBSRC)/cbits"
427 @SysLibrary = (); # will be built up as we go along
429 $TopClosureFile # defaults to 1.2 one; will be mangled later
430 = ( $(INSTALLING) ) ? "$InstLibDirGhc/TopClosureXXXX.o"
431 : "$TopPwd/$(CURRENT_DIR)/$(GHC_RUNTIMESRC)/main/TopClosureXXXX.o";
434 We are given a list of files with various presumably-known suffixes
435 (unknown-suffix files go straight to the linker). For each file, we
436 begin by assuming that we'll run every phase over it. However: (1)
437 global flags (\tr{-c}, \tr{-S}, etc.) tell us not to run any phase
438 past a certain point; and (2) the file's suffix tells us what phase to
439 start with. Linking is weird and kept track of separately.
441 Here are the initial defaults applied to all files:
443 $Cpp_flag_set = 0; # (hack)
444 $Only_preprocess_C = 0; # pretty hackish
445 $PostprocessCcOutput = 0;
447 # native code-gen or via C?
448 $HaveNativeCodeGen = $(GHC_WITH_NATIVE_CODEGEN);
449 $HscOut = '-C='; # '-C=' ==> .hc output; '-S=' ==> .s output; '-N=' ==> neither
451 if $HaveNativeCodeGen && $TargetPlatform =~ /^(alpha|sparc)-/; #ToDo: add |i386 !
452 $ProduceHi = '-hifile=';
456 $CollectingGCstats = 0;
457 $CollectGhcTimings = 0;
458 $DEBUGging = ''; # -DDEBUG and all that it entails (um... not really)
459 $PROFing = ''; # set to p or e if profiling
460 $PROFgroup = ''; # set to group if an explicit -Ggroup specified
461 $PROFauto = ''; # set to relevant hsc flag if -auto or -auto-all
462 $PROFcaf = ''; # set to relevant hsc flag if -caf-all
463 $PROFignore_scc = ''; # set to relevant parser flag if explicit sccs ignored
464 $UNPROFscc_auto = ''; # set to relevant hsc flag if forcing auto sccs without profiling
465 $TICKYing = ''; # set to t if compiling for ticky-ticky profiling
466 $PARing = ''; # set to p if compiling for PAR
467 $CONCURing = ''; # set to c if compiling for CONCURRENT
468 $GRANing = ''; # set to g if compiling for GRAN
469 $StkChkByPageFaultOK = 1; # may be set to 0 (false) for some builds
470 $Specific_output_dir = ''; # set by -odir <dir>
471 $Specific_output_file = ''; # set by -o <file>; "-" for stdout
472 $Specific_hi_file = ''; # set by -ohi <file>; "-" for stdout
473 $Specific_dump_file = ''; # set by -odump <file>; "-" for stdout
474 $Using_dump_file = 0;
476 $Osuffix = ''; # default: use the normal suffix for that kind of output
479 $Do_recomp_chkr = 0; # don't use the recompilatio checker unless asked
480 $Do_cc = -1; # a MAGIC indeterminate value; will be set to 1 or 0.
483 $Keep_hc_file_too = 0;
484 $Keep_s_file_too = 0;
485 $UseGhcInternals = 0; # if 1, may use GHC* modules
488 $Dump_parser_output = 0;
490 $Dump_asm_splitting_info = 0;
491 $NoImplicitPrelude = 0;
493 # and the list of files
496 # and files to be linked...
500 We inject consistency-checking information into \tr{.hc} files (both
501 when created by the Haskell compiler and when compiled by the C
502 compiler), so that we can check that an executable is made from
503 consistently-built pieces. (The check is normally done just after
504 linking.) The checking is done by introducing/munging
505 \tr{what(1)}-style strings. Anyway, here are the relevant global
506 variables and their defaults:
508 $LinkChk = 1; # set to 0 if the link check should *not* be done
510 # major & minor version numbers; major numbers must always agree;
511 # minor disagreements yield a warning.
512 $HsC_major_version = 30;
513 $HsC_minor_version = 0;
514 $Cc_major_version = 35;
515 $Cc_minor_version = 0;
517 # options: these must always agree
518 $HsC_consist_options = ''; # we record, in this order:
519 # Build tag; debugging?
520 $Cc_consist_options = ''; # we record, in this order:
521 # Build tag; debugging?
524 %************************************************************************
526 \section[Driver-parse-argv]{Munge the command-line options}
528 %************************************************************************
530 Now slurp through the arguments.
533 #---------- user defined prelude ---------------------------------------
535 if (grep(/^-user-prelude$/, @ARGV)) {
537 # If ARGV contains -user-prelude we are compiling a piece of
538 # prelude for the user, probably with additional specialise pragmas
540 # We strip out the -O -f and -user-prelude flags provided on
541 # the command line and add the ones used to compile the prelude
542 # ToDo: get these options from a common definition in mkworld
544 # We also enable any options forced through with -user-prelude-force
546 # Hey, Check out this grep statement ;-) (PS)
548 @ARGV = grep((!/^-O/ && !/^-f/ && !/^-user-prelude$/) || s/^-user-prelude-force//,
552 '-fcompiling-ghc-internals=???', # ToDo!!!!
554 '-fshow-pragma-name-errs',
555 '-fshow-import-specs',
561 print STDERR "ghc: -user-prelude options:\n", "@ARGV", "\n";
564 # can't use getopt(s); what we want is too complicated
565 arg: while($_ = $ARGV[0]) {
568 #---------- help -------------------------------------------------------
569 if (/^-\?$/ || /^-help$/) { print $LongUsage; exit $Status; }
571 #---------- verbosity and such -----------------------------------------
572 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
574 #---------- what phases are to be run ----------------------------------
575 /^-recomp/ && do { $Do_recomp_chkr = 1; next arg; };
577 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
578 # change the global default:
579 # we won't run cat; we'll run the real thing
581 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
583 # stop after generating C
585 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
586 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
588 # leave out actual C generation (debugging) [also turns off interface gen]
590 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
591 # _do_ generate an interface; usually used as: -noC -hi
593 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
594 # don't generate an interface (even if generating C)
596 /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; };
597 /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; };
598 /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; };
599 # show/disable diffs if the interface file changes
601 /^-E$/ && do { push(@CcBoth_flags, '-E');
602 $Only_preprocess_C = 1;
603 $Do_as = 0; $Do_lnkr = 0; next arg; };
604 # stop after preprocessing C
606 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
607 # stop after generating assembler
609 /^-c$/ && do { $Do_lnkr = 0; next arg; };
610 # stop after generating .o files
612 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
613 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
614 # don't do consistency-checking after a link
616 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg('-tmpdir', '');
617 $Tmp_prefix = "$Tmp_prefix/ghc$$";
618 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
620 # use an alternate directory for temp files
622 #---------- redirect output --------------------------------------------
624 # -o <file>; applies to the last phase, whatever it is
625 # "-o -" sends it to stdout
626 # if <file> has a directory component, that dir must already exist
628 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg('-odir', '');
629 if (! -d $Specific_output_dir) {
630 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
635 /^-o$/ && do { $Specific_output_file = &grab_arg_arg('-o', '');
636 if ($Specific_output_file ne '-'
637 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
638 local($dir_part) = $1;
639 if (! -d $dir_part) {
640 print STDERR "$Pgm: no such directory: $dir_part\n";
646 # NB: -isuf not documented yet (because it doesn't work yet)
647 /^-isuf$/ && do { $Isuffix = &grab_arg_arg('-isuf', '');
648 if ($Isuffix =~ /\./ ) {
649 print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n";
654 /^-osuf$/ && do { $Osuffix = &grab_arg_arg('-osuf', '');
655 if ($Osuffix =~ /\./ ) {
656 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
661 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
662 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg('-ohi', '');
663 if ($Specific_hi_file ne '-'
664 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
665 local($dir_part) = $1;
666 if (! -d $dir_part) {
667 print STDERR "$Pgm: no such directory: $dir_part\n";
673 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg('-hisuf', '');
674 if ($HiSuffix =~ /\./ ) {
675 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
679 /^-hisuf-prelude$/ && do { # as esoteric as they come...
680 $SysHiSuffix = &grab_arg_arg('-hisuf-prelude', '');
681 if ($SysHiSuffix =~ /\./ ) {
682 print STDERR "$Pgm: -hisuf-prelude suffix shouldn't contain a .\n";
687 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg('-odump', '');
688 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
689 local($dir_part) = $1;
690 if (! -d $dir_part) {
691 print STDERR "$Pgm: no such directory: $dir_part\n";
697 #-------------- scc & Profiling Stuff ----------------------------------
699 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
702 # generate auto SCCs on top level bindings
703 # -auto-all = all top level bindings
704 # -auto = only top level exported bindings
705 $PROFauto = ( /-all/ )
706 ? '-fauto-sccs-on-all-toplevs'
707 : '-fauto-sccs-on-exported-toplevs';
710 /^-caf-all/ && do { # generate individual CAF SCC annotations
711 $PROFcaf = '-fauto-sccs-on-individual-cafs';
714 /^-ignore-scc$/ && do {
715 # forces ignore of scc annotations even if profiling
716 $PROFignore_scc = '-W';
719 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
722 /^-unprof-scc-auto/ && do {
723 # generate auto SCCs on top level bindings when not profiling
724 # used to measure optimisation effects of presence of sccs
725 $UNPROFscc_auto = ( /-all/ )
726 ? '-fauto-sccs-on-all-toplevs'
727 : '-fauto-sccs-on-exported-toplevs';
730 #--------- ticky/concurrent/parallel -----------------------------------
731 # we sort out the details a bit later on
733 /^-concurrent$/ && do { $CONCURing = 'c'; next arg; }; # concurrent Haskell
734 /^-gransim$/ && do { $GRANing = 'g'; next arg; }; # GranSim
735 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
736 /^-parallel$/ && do { $PARing = 'p'; next arg; } ; # parallel Haskell
738 #-------------- "user ways" --------------------------------------------
740 (/^-user-setup-([a-oA-Z])$/
741 || /^$(GHC_BUILD_FLAG_a)$/
742 || /^$(GHC_BUILD_FLAG_b)$/
743 || /^$(GHC_BUILD_FLAG_c)$/
744 || /^$(GHC_BUILD_FLAG_d)$/
745 || /^$(GHC_BUILD_FLAG_e)$/
746 || /^$(GHC_BUILD_FLAG_f)$/
747 || /^$(GHC_BUILD_FLAG_g)$/
748 || /^$(GHC_BUILD_FLAG_h)$/
749 || /^$(GHC_BUILD_FLAG_i)$/
750 || /^$(GHC_BUILD_FLAG_j)$/
751 || /^$(GHC_BUILD_FLAG_k)$/
752 || /^$(GHC_BUILD_FLAG_l)$/
753 || /^$(GHC_BUILD_FLAG_m)$/
754 || /^$(GHC_BUILD_FLAG_n)$/
755 || /^$(GHC_BUILD_FLAG_o)$/
756 || /^$(GHC_BUILD_FLAG_A)$/
757 || /^$(GHC_BUILD_FLAG_B)$/
759 || /^$(GHC_BUILD_FLAG_2s)$/ # GC ones...
760 || /^$(GHC_BUILD_FLAG_1s)$/
761 || /^$(GHC_BUILD_FLAG_du)$/
763 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
765 /^$(GHC_BUILD_FLAG_a)$/ && do { $BuildTag = '_a'; };
766 /^$(GHC_BUILD_FLAG_b)$/ && do { $BuildTag = '_b'; };
767 /^$(GHC_BUILD_FLAG_c)$/ && do { $BuildTag = '_c'; };
768 /^$(GHC_BUILD_FLAG_d)$/ && do { $BuildTag = '_d'; };
769 /^$(GHC_BUILD_FLAG_e)$/ && do { $BuildTag = '_e'; };
770 /^$(GHC_BUILD_FLAG_f)$/ && do { $BuildTag = '_f'; };
771 /^$(GHC_BUILD_FLAG_g)$/ && do { $BuildTag = '_g'; };
772 /^$(GHC_BUILD_FLAG_h)$/ && do { $BuildTag = '_h'; };
773 /^$(GHC_BUILD_FLAG_i)$/ && do { $BuildTag = '_i'; };
774 /^$(GHC_BUILD_FLAG_j)$/ && do { $BuildTag = '_j'; };
775 /^$(GHC_BUILD_FLAG_k)$/ && do { $BuildTag = '_k'; };
776 /^$(GHC_BUILD_FLAG_l)$/ && do { $BuildTag = '_l'; };
777 /^$(GHC_BUILD_FLAG_m)$/ && do { $BuildTag = '_m'; };
778 /^$(GHC_BUILD_FLAG_n)$/ && do { $BuildTag = '_n'; };
779 /^$(GHC_BUILD_FLAG_o)$/ && do { $BuildTag = '_o'; };
780 /^$(GHC_BUILD_FLAG_A)$/ && do { $BuildTag = '_A'; };
781 /^$(GHC_BUILD_FLAG_B)$/ && do { $BuildTag = '_B'; };
783 /^$(GHC_BUILD_FLAG_2s)$/ && do { $BuildTag = '_2s'; };
784 /^$(GHC_BUILD_FLAG_1s)$/ && do { $BuildTag = '_1s'; };
785 /^$(GHC_BUILD_FLAG_du)$/ && do { $BuildTag = '_du'; };
787 local($stuff) = $UserSetupOpts{$BuildTag};
788 local(@opts) = split(/\s+/, $stuff);
790 # feed relevant ops into the arg-processing loop (if any)
791 unshift(@ARGV, @opts) if $#opts >= 0;
795 #---------- set search paths for libraries and things ------------------
797 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
798 # prepends the items to the list); -I is for including C .h files.
800 /^-i$/ && do { @Import_dir = (); # import path cleared!
802 print STDERR "WARNING: import paths cleared by `-i'\n";
805 /^-i(.*)/ && do { local(@new_items)
806 = split( /:/, &grab_arg_arg('-i', $1));
807 unshift(@Import_dir, @new_items);
810 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg('-I', $1)); next arg; };
811 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg('-L', $1)); next arg; };
812 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg('-l', $1)); next arg; };
814 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg('-syslib',$1);
815 print STDERR "$Pgm: no such system library (-syslib): $syslib\n",
816 $Status++ unless $syslib =~ /^(hbc|ghc|posix|contrib)$/;
818 unshift(@SysImport_dir,
820 ? "$InstSysLibDir/$syslib/imports"
821 : "$TopPwd/hslibs/$syslib/src");
823 if (! $(INSTALLING)) {
824 push(@SysLibrary_dir,
825 ("$TopPwd/hslibs/$syslib"
826 ,"$TopPwd/hslibs/$syslib/cbits"));
829 push(@SysLibrary, ("-lHS$syslib"
830 ,"-lHS${syslib}_cbits"));
834 #=======================================================================
835 # various flags that we can harmlessly send to one program or another
836 # (we will later "reclaim" some of the compiler ones now sent to gcc)
837 #=======================================================================
839 #---------- this driver itself (ghc) -----------------------------------
840 # these change what executable is run for each phase:
841 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
842 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
843 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
844 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
845 /^-pgma(.*)$/ && do { $As = $1; next arg; };
846 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
848 #---------- the get-anything-through opts (all pgms) -------------------
849 # these allow arbitrary option-strings to go to any phase:
850 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
851 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
852 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
853 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
854 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
855 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
856 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
858 #---------- Haskell C pre-processor (hscpp) ----------------------------
859 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg('-D',$1)."'"); next arg; };
860 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg('-U',$1)."'"); next arg; };
862 /^-genSPECS/ && do { $Cpp_flag_set = 1;
866 #---------- post-Haskell "assembler"------------------------------------
867 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
868 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
870 #---------- Haskell compiler (hsc) -------------------------------------
872 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
873 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
875 /^-fhaskell-1\.3$/ && do { next arg; }; # a no-op right now
877 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
879 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
881 # ToDo: rename to -fcompiling-ghc-internals=<module>
883 /^-fcompiling-ghc-internals(.*)/ && do { local($m) = &grab_arg_arg('-fcompiling-ghc-internals',$1);
884 push(@HsC_flags, "-fcompiling-ghc-internals=$m");
887 # NB: not really put to use and not documented
888 /^-fusing-ghc-internals$/ && do { $UsingGhcInternals = 1; next arg; };
890 /^-user-prelude-force/ && do { # ignore if not -user-prelude
893 /^-split-objs(.*)/ && do {
894 local($sname) = &grab_arg_arg('-split-objs', $1);
895 $sname =~ s/ //g; # no spaces
897 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|sparc)-/ ) {
899 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
904 push(@HsC_flags, "-fglobalise-toplev-names=$sname");
905 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
907 require('ghc-split.prl')
908 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
913 && do { push(@HsC_flags, $_);
914 push(@HsP_flags, '-N');
916 # push(@HsC_flags, '-fshow-import-specs');
920 /^-fspeciali[sz]e-unboxed$/
921 && do { $Oopt_DoSpecialise = '-fspecialise';
922 $Oopt_SpecialiseUnboxed = '-fspecialise-unboxed';
925 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
926 /^-fno-speciali[sz]e$/
927 && do { $Oopt_DoSpecialise = ''; next arg; };
930 # Now the foldr/build options, which are *on* by default (for -O).
933 && do { $Oopt_FoldrBuild = 1;
934 $Oopt_FB_Support = '-fdo-arity-expand';
939 && do { $Oopt_FoldrBuild = 0;
940 $Oopt_FB_Support = '';
943 /^-fno-foldr-build-rule$/
944 && do { $Oopt_FoldrBuild = 0;
948 && do { $Oopt_FB_Support = '';
951 /^-fno-snapback-to-append$/
952 && do { $Oopt_FoldrBuildInline .= ' -fdo-not-fold-back-append ';
953 #print "No Foldback of append\n";
958 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
959 /^-fvia-C$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
963 /^(-fsimpl-uf-use-threshold)(.*)$/
964 && do { $Oopt_UnfoldingUseThreshold = $1 . &grab_arg_arg($1, $2);
967 /^(-fmax-simplifier-iterations)(.*)$/
968 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg($1, $2);
971 /^-fno-pedantic-bottoms$/
972 && do { $Oopt_PedanticBottoms = ''; next arg; };
974 /^-fdo-monad-eta-expansion$/
975 && do { $Oopt_MonadEtaExpansion = $_; next arg; };
977 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
978 && do { push(@HsC_flags, $_); next arg; };
980 /^(-freturn-in-regs-threshold)(.*)$/
981 && do { local($what) = $1;
982 local($num) = &grab_arg_arg($what, $2);
983 if ($num < 2 || $num > 8) {
984 die "Bad experimental flag: $_\n";
986 $HscOut = '-C='; # force using C compiler
987 push(@HsC_flags, "$what$num");
988 push(@CcRegd_flags, "-D__STG_REGS_AVAIL__=$num");
994 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
995 &squashHscFlag("-f$1");
998 /^-f(show-import-specs)/
999 && do { push(@HsC_flags, $_); next arg; };
1003 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes
1004 unshift(@CcBoth_flags, ( $_ ));
1007 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
1008 && do { # for GCC for SPARCs
1009 unshift(@CcBoth_flags, ( $_ ));
1012 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
1013 $StolenX86Regs = $1;
1016 #*************** ... and lots of debugging ones (form: -d* )
1018 # -d(no-)core-lint is done this way so it is turn-off-able.
1019 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
1020 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
1022 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
1023 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
1024 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
1025 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
1026 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
1027 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
1029 #*************** ... and now all these -R* ones for its runtime system...
1031 /^-Rscale-sizes?(.*)/ && do {
1032 $Scale_sizes_by = &grab_arg_arg('-Rscale-sizes', $1);
1035 /^(-H|-Rmax-heapsize)(.*)/ && do {
1036 local($heap_size) = &grab_arg_arg($1, $2);
1037 if ($heap_size =~ /(\d+)[Kk]$/) {
1038 $heap_size = $1 * 1000;
1039 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
1040 $heap_size = $1 * 1000 * 1000;
1041 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
1042 $heap_size = $1 * 1000 * 1000 * 1000;
1044 if ($heap_size <= 0) {
1045 print STDERR "$Pgm: resetting heap-size to zero!!!\n";
1046 $Specific_heap_size = 0;
1048 # if several heap sizes given, take the largest...
1049 } elsif ($heap_size >= $Specific_heap_size) {
1050 $Specific_heap_size = $heap_size;
1052 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n";
1056 /^-(K|Rmax-(stk|stack)size)(.*)/ && do {
1057 local($stk_size) = &grab_arg_arg('-Rmax-stksize', $3);
1058 if ($stk_size =~ /(\d+)[Kk]$/) {
1059 $stk_size = $1 * 1000;
1060 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
1061 $stk_size = $1 * 1000 * 1000;
1062 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
1063 $stk_size = $1 * 1000 * 1000 * 1000;
1065 if ($stk_size <= 0) {
1066 print STDERR "$Pgm: resetting stack-size to zero!!!\n";
1067 $Specific_stk_size = 0;
1069 # if several stack sizes given, take the largest...
1070 } elsif ($stk_size >= $Specific_stk_size) {
1071 $Specific_stk_size = $stk_size;
1073 print STDERR "$Pgm: ignoring stack-size-setting option (-Rmax-stksize $stk_size)...not the largest seen\n";
1077 /^-Rgc-stats$/ && do { $CollectingGCstats++;
1078 # the two RTSs do this diff ways; we will try to compensate
1081 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
1083 #---------- C high-level assembler (gcc) -------------------------------
1084 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
1086 # -dgcc-lint is a useful way of making GCC very fussy.
1087 # From alan@spri.levels.unisa.edu.au (Alan Modra).
1088 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
1089 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
1090 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
1092 # inject "#include <wurble>" into the compiler's C output!
1094 /^-#include(.*)/ && do {
1095 local($to_include) = &grab_arg_arg('-#include', $1);
1096 push(@CcInjects, "#include $to_include\n");
1099 #---------- Linker (gcc, really) ---------------------------------------
1101 /^-static$/ && do { push(@Ld_flags, $_); next arg; };
1103 #---------- mixed cc and linker magic ----------------------------------
1104 # this optimisation stuff is finally sorted out later on...
1106 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
1108 /^-O[1-2]?$/ && do {
1109 # print STDERR "$Pgm: NOTE: this version of GHC doesn't support -O or -O2\n";
1110 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
1111 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
1113 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
1116 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
1118 /^-Ofile(.*)/ && do {
1120 local($ofile) = &grab_arg_arg('-Ofile', $1);
1121 @HsC_minusO3_flags = ();
1123 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
1126 s/\#.*//; # death to comments
1127 s/[ \t]+//g; # death to whitespace
1128 next if /^$/; # ditto, blank lines
1129 s/([()*{}])/\\$1/g; # protect shell metacharacters
1131 push(@CcBoth_flags, $1);
1133 push(@HsC_minusO3_flags, $_);
1139 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
1140 # in the consistency info
1144 #---------- linking .a file --------------------------------------------
1146 /^-Main(.*)/ && do {
1147 # specifies main or mainPrimIO to be linked
1151 #---------- catch unrecognized flags -----------------------------------
1154 print STDERR "$Pgm: unrecognised option: $_\n";
1158 #---------- anything else is considered an input file ------------------
1159 # (well, .o and .a files are immediately queued up as linker fodder..)
1161 push(@Link_file, $_);
1163 push(@Input_file, $_);
1166 # input files must exist:
1168 print STDERR "$Pgm: input file doesn't exist: $_\n";
1173 # if there are several input files,
1174 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
1175 # (except if linking, of course)
1177 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
1178 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
1179 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
1180 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
1181 print STDERR "\tPerhaps the -odir option will do what you want.\n";
1186 # check for various pathological -o and -odir combinations...
1187 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
1188 if ($Specific_output_file eq '-') {
1189 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
1191 } else { # amalgamate...
1192 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
1193 # ToDo: check we haven't got a junk name now...
1194 $Specific_output_dir = ''; # reset
1198 # PROFILING stuff after argv mangling:
1200 # warn about any scc exprs found (in case scc used as identifier)
1201 push(@HsP_flags, '-W');
1203 # add -auto sccs even if not profiling !
1204 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
1207 push(@HsC_flags, $PROFauto) if $PROFauto;
1208 push(@HsC_flags, $PROFcaf) if $PROFcaf;
1209 #push(@HsC_flags, $PROFdict) if $PROFdict;
1211 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
1213 push(@HsP_flags, (($PROFignore_scc) ? $PROFignore_scc : '-S'));
1215 if ( $SplitObjFiles ) {
1216 # can't split with cost centres -- would need global and externs
1217 print STDERR "$Pgm: WARNING: splitting objects when profiling will *BREAK* if any _scc_s are present!\n";
1218 # (but it's fine if there aren't any _scc_s around...)
1219 # $SplitObjFiles = 0; # unset
1220 #not an error: for now: $Status++;
1224 # crash and burn if there were errors
1225 if ( $Status > 0 ) {
1226 print STDERR $ShortUsage;
1231 %************************************************************************
1233 \section[Driver-post-argv-mangling]{Setup after reading options}
1235 %************************************************************************
1237 %************************************************************************
1239 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
1241 %************************************************************************
1243 We come now to the default ``wads of options'' that are turned on by
1244 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
1245 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
1248 The user can also specify his/her own list of options in a file; in
1249 that case, the work is already done (see stuff about @minusO3@,
1252 GHC allows very precise control of what happens during a compilation.
1253 Core-to-Core and STG-to-STG passes can be run in any order, as many
1254 times as you like. Individual transformations can be turned on or
1257 Sadly, however, there are some interdependencies \& Things You Must
1258 Not Do. Here is the list.
1260 CORE-TO-CORE PASSES:
1262 \item[\tr{-fspecialise}:]
1263 The specialiser must have dependency-analysed input; but if you run
1264 the simplifier to do this, you must not let it toss away unused
1265 bindings! (The typechecker conveys some specialisation info via
1266 ``unused'' bindings...)
1268 \item[\tr{-ffloat-inwards}:]
1269 Floating inwards should be done before strictness analysis, because
1270 the latter will give better results.
1272 \item[\tr{-fstatic-args}:]
1273 The static-arguments-transformation pass {\em must} have the
1274 simplifier run right after it.
1276 \item[\tr{-fcalc-inlinings[12]}:]
1277 Not required, but there may be slight gains by re-simplifying after
1278 this is done. (You could then \tr{-fcalc-inlinings} again, just for
1281 \item[\tr{-ffull-laziness}:]
1282 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
1283 that's run. (Um, well, howzabout the simplifier just once more...)
1288 \item[\tr{-fupdate-analysis}:]
1289 It really really wants to be the last STG-to-STG pass that is run.
1297 # '-falways-float-lets-from-lets', # no idea why this was here (WDP 95/09)
1298 '-ffloat-lets-exposing-whnf',
1299 '-ffloat-primops-ok',
1301 # '-fdo-lambda-eta-expansion', # too complicated
1303 # '-flet-to-case', # no strictness analysis, so...
1304 $Oopt_PedanticBottoms,
1305 # $Oopt_MonadEtaExpansion, # no thanks
1306 '-fsimpl-uf-use-threshold0',
1307 '-fessential-unfoldings-only',
1308 # $Oopt_UnfoldingUseThreshold, # no thanks
1309 $Oopt_MaxSimplifierIterations,
1312 # '-ffull-laziness', # removed 95/04 WDP following Andr\'e's lead
1314 $Oopt_FinalStgProfilingMassage
1317 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
1319 # initial simplify: mk specialiser happy: minimum effort please
1323 '-fkeep-spec-pragma-ids', # required before specialisation
1324 '-fsimpl-uf-use-threshold0',
1325 '-fessential-unfoldings-only',
1326 '-fmax-simplifier-iterations1',
1327 $Oopt_PedanticBottoms,
1330 ($Oopt_DoSpecialise) ? (
1331 '-fspecialise-overloaded',
1332 $Oopt_SpecialiseUnboxed,
1336 '-fsimplify', # need dependency anal after specialiser ...
1337 '\(', # need tossing before calc-inlinings ...
1339 '-ffloat-lets-exposing-whnf',
1340 '-ffloat-primops-ok',
1344 '-fdo-eta-reduction',
1345 '-fdo-lambda-eta-expansion',
1347 $Oopt_PedanticBottoms,
1348 $Oopt_MonadEtaExpansion,
1349 $Oopt_UnfoldingUseThreshold,
1350 $Oopt_MaxSimplifierIterations,
1353 #LATER: '-fcalc-inlinings1', -- pointless for 2.01
1355 # ($Oopt_FoldrBuildWW) ? (
1356 # '-ffoldr-build-ww-anal',
1357 # '-ffoldr-build-worker-wrapper',
1361 # '-ffloat-lets-exposing-whnf',
1362 # '-ffloat-primops-ok',
1366 # '-fdo-eta-reduction',
1367 # '-fdo-lambda-eta-expansion',
1369 # $Oopt_PedanticBottoms,
1370 # $Oopt_MonadEtaExpansion,
1371 # $Oopt_UnfoldingUseThreshold,
1372 # $Oopt_MaxSimplifierIterations,
1376 # this pass-ordering sequence was agreed by Simon and Andr\'e
1377 # (WDP 94/07, 94/11).
1380 ($Oopt_FoldrBuild) ? (
1381 '-ffoldr-build-on', # desugar list comprehensions for foldr/build
1385 '-fignore-inline-pragma', # **** NB!
1386 '-fdo-foldr-build', # NB
1388 '-ffloat-lets-exposing-whnf',
1389 '-ffloat-primops-ok',
1393 '-fdo-eta-reduction',
1394 '-fdo-lambda-eta-expansion',
1396 $Oopt_PedanticBottoms,
1397 $Oopt_MonadEtaExpansion,
1398 $Oopt_UnfoldingUseThreshold,
1399 $Oopt_MaxSimplifierIterations,
1408 '-ffloat-lets-exposing-whnf',
1409 '-ffloat-primops-ok',
1413 '-fdo-eta-reduction',
1414 '-fdo-lambda-eta-expansion',
1416 ($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-eta-reduction',
1437 '-fdo-lambda-eta-expansion',
1439 '-flet-to-case', # Aha! Only done after strictness analysis
1440 $Oopt_PedanticBottoms,
1441 $Oopt_MonadEtaExpansion,
1442 $Oopt_UnfoldingUseThreshold,
1443 $Oopt_MaxSimplifierIterations,
1448 # Case-liberation for -O2. This should be after
1449 # strictness analysis and the simplification which follows it.
1451 # ( ($OptLevel != 2)
1453 # : "-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 \\)" ),
1455 # Final clean-up simplification:
1460 '-ffloat-lets-exposing-whnf',
1461 '-ffloat-primops-ok',
1465 '-fdo-eta-reduction',
1466 '-fdo-lambda-eta-expansion',
1469 '-fignore-inline-pragma', # **** NB!
1470 $Oopt_FoldrBuildInline,
1471 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
1472 # but still do reductions if you see them!
1473 $Oopt_PedanticBottoms,
1474 $Oopt_MonadEtaExpansion,
1475 $Oopt_UnfoldingUseThreshold,
1476 $Oopt_MaxSimplifierIterations,
1481 #LATER: '-fcalc-inlinings2', -- pointless for 2.01
1484 #LATER: '-fupdate-analysis',
1486 $Oopt_FinalStgProfilingMassage,
1492 # SPECIAL FLAGS for -O2
1493 ($OptLevel == 2) ? (
1499 Sort out what we're going to do about optimising. First, the @hsc@
1500 flags and regular @cc@ flags to worry about:
1502 if ( $OptLevel <= 0 ) {
1504 # for this level, we tell the parser -fignore-interface-pragmas
1505 push(@HsC_flags, '-fignore-interface-pragmas');
1506 # and tell the compiler not to produce them
1507 push(@HsC_flags, '-fomit-interface-pragmas');
1509 &add_Hsc_flags( @HsC_minusNoO_flags );
1510 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
1512 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
1514 &add_Hsc_flags( @HsC_minusO_flags );
1515 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
1516 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
1517 # but it *is* useful in compiling the garbage collectors (so said
1518 # Patrick many moons ago...).
1520 } else { # -Ofile, then...
1522 &add_Hsc_flags( @HsC_minusO3_flags );
1523 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
1527 %************************************************************************
1529 \subsection{Check for consistency, etc.}
1531 %************************************************************************
1533 Sort out @$BuildTag@, @$PROFing@, @$CONCURing@, @$PARing@,
1534 @$GRANing@, @$TICKYing@:
1536 if ( $BuildTag ne '' ) {
1537 local($b) = $BuildDescr{$BuildTag};
1538 if ($CONCURing eq 'c') { print STDERR "$Pgm: Can't mix $b with -concurrent.\n"; exit 1; }
1539 if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
1540 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
1541 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
1543 # ok to have a user-way profiling build
1544 # eval the profiling opts ... but leave user-way BuildTag
1545 if ($PROFing eq 'p') { eval($EvaldSetupOpts{'_p'}); }
1547 } elsif ( $PROFing eq 'p' ) {
1548 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
1549 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
1550 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
1551 $BuildTag = ($CONCURing eq 'c') ? '_mr' : '_p' ; # possibly "profiled concurrent"...
1553 } elsif ( $CONCURing eq 'c' ) {
1554 if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix -concurrent with -parallel.\n"; exit 1; }
1555 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -concurrent with -gransim.\n"; exit 1; }
1556 $BuildTag = ($TICKYing eq 't') ? '_mt' : '_mc' ; # possibly "ticky concurrent"...
1557 # "profiled concurrent" already acct'd for...
1559 } elsif ( $PARing eq 'p' ) {
1560 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
1561 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
1564 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
1565 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
1569 } elsif ( $GRANing eq 'g' ) {
1570 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
1573 } elsif ( $TICKYing eq 't' ) {
1579 if ( $BuildTag ne '' ) { # something other than normal sequential...
1581 push(@HsP_flags, "-syshisuffix=$BuildTag.hi"); # use appropriate Prelude .hi files
1583 $HscOut = '-C='; # must go via C
1585 eval($EvaldSetupOpts{$BuildTag});
1589 Decide what the consistency-checking options are in force for this run:
1591 $HsC_consist_options = "${BuildTag},${DEBUGging}";
1592 $Cc_consist_options = "${BuildTag},${DEBUGging}";
1595 %************************************************************************
1597 \subsection{Add on machine-specific C-compiler flags}
1599 %************************************************************************
1601 Shove on magical machine-specific options. We use \tr{unshift} to
1602 stick them on the {\em front} of the arrays, so that ``later''
1603 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
1605 Note: a few ``always apply'' flags were set at the very beginning.
1608 if ($TargetPlatform =~ /^alpha-/) {
1609 # we know how to *mangle* asm for alpha
1610 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1611 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1612 unshift(@CcBoth_flags, ('-static'));
1614 } elsif ($TargetPlatform =~ /^hppa/) {
1615 # we know how to *mangle* asm for hppa
1616 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1617 unshift(@CcBoth_flags, ('-static'));
1618 # We don't put in '-mlong-calls', because it's only
1619 # needed for very big modules (sigh), and we don't want
1620 # to hobble ourselves further on all the other modules
1622 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
1623 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
1624 # (very nice, but too bad the HP /usr/include files don't agree.)
1626 } elsif ($TargetPlatform =~ /^i386-/) {
1627 # we know how to *mangle* asm for X86
1628 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1629 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1631 # -fno-defer-pop : basically the same game as for m68k
1633 # -fomit-frame-pointer : *must* ; because we're stealing
1634 # the fp (%ebp) for our register maps. *All* register
1635 # maps (in MachRegs.lh) must steal it.
1637 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1638 unshift(@CcRegd_flags, '-fomit-frame-pointer');
1639 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1641 } elsif ($TargetPlatform =~ /^m68k-/) {
1642 # we know how to *mangle* asm for m68k
1643 unshift (@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1644 unshift (@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1646 # -fno-defer-pop : for the .hc files, we want all the pushing/
1647 # popping of args to routines to be explicit; if we let things
1648 # be deferred 'til after an STGJUMP, imminent death is certain!
1650 # -fomit-frame-pointer : *don't*
1651 # It's better to have a6 completely tied up being a frame pointer
1652 # rather than let GCC pick random things to do with it.
1653 # (If we want to steal a6, then we would try to do things
1654 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1656 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1657 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1658 # maybe gives reg alloc a better time
1659 # also: -fno-defer-pop is not sufficiently well-behaved without it
1661 } elsif ($TargetPlatform =~ /^mips-/) {
1662 # we (hope to) know how to *mangle* asm for MIPSen
1663 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1664 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1665 unshift(@CcBoth_flags, ('-static'));
1667 } elsif ($TargetPlatform =~ /^powerpc-/) {
1668 # we know how to *mangle* asm for PowerPC
1669 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1670 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1671 unshift(@CcBoth_flags, ('-static')); # always easier to start with
1672 unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables
1674 } elsif ($TargetPlatform =~ /^sparc-/) {
1675 # we know how to *mangle* asm for SPARC
1676 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1677 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1682 Same unshifting magic, but for special linker flags.
1684 Should really be whether or not we prepend underscores to global symbols,
1685 not an architecture test. (JSM)
1688 $Under = ( $TargetPlatform =~ /^alpha-/
1689 || $TargetPlatform =~ /^hppa/
1690 || $TargetPlatform =~ /^mips-sgi-irix/
1691 || $TargetPlatform =~ /^powerpc-/
1692 || $TargetPlatform =~ /-solaris/
1693 || $TargetPlatform =~ /-linux$/
1699 '-u', "${Under}Main_" . $Ld_main . '_closure',
1701 '-u', "${Under}GHCbase_unsafePerformPrimIO_fast1",
1702 '-u', "${Under}Prelude_Z91Z93_closure", # i.e., []
1703 '-u', "${Under}Prelude_IZh_static_info",
1704 '-u', "${Under}Prelude_False_inregs_info",
1705 '-u', "${Under}Prelude_True_inregs_info",
1706 '-u', "${Under}Prelude_CZh_static_info",
1707 '-u', "${Under}DEBUG_REGS"))
1708 ; # just for fun, now...
1711 %************************************************************************
1713 \subsection{Set up include paths and system-library enslurpment}
1715 %************************************************************************
1717 Now that we know what garbage-collector, etc., are required, we can
1718 finalise our list of libraries to slurp through, and generally Get
1722 # default includes must be added AFTER option processing
1723 if ( ! $(INSTALLING) ) {
1724 push (@Include_dir, "$TopPwd/$(CURRENT_DIR)/$(GHC_INCLUDESRC)");
1726 push (@Include_dir, "$InstLibDirGhc/includes");
1727 push (@Include_dir, "$InstDataDirGhc/includes");
1732 push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff
1735 foreach $f (@SysLibrary) {
1736 next if $f =~ /_cbits/;
1737 $f .= $BuildTag if $f =~ /^-lHS/;
1740 # fiddle the TopClosure file name...
1741 $TopClosureFile =~ s/XXXX//;
1743 # Push library HSrts, plus boring clib bit
1744 push(@SysLibrary, "-lHSrts${BuildTag}");
1745 push(@SysLibrary, '-lHSclib');
1747 # Push the pvm libraries
1748 if ($BuildTag eq '_mp') {
1749 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1750 push(@SysLibrary, "-L$pvmlib", '-lpvm3', '-lgpvm3');
1751 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1752 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1753 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1754 push(@SysLibrary, '-lsocket', '-lnsl');
1758 # Push the GNU multi-precision arith lib; and the math library
1759 push(@SysLibrary, '-lgmp');
1760 push(@SysLibrary, '-lm');
1763 %************************************************************************
1765 \subsection{Check that this system was built to do what we are asking}
1767 %************************************************************************
1769 Before continuing we check that the appropriate build is available.
1772 die "$Pgm: no BuildAvail?? $BuildTag\n" if ! $BuildAvail{$BuildTag}; # sanity
1774 if ( $BuildAvail{$BuildTag} =~ /^-build-.*-not-defined$/ ) {
1775 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1776 "' \"build\" is not available with your GHC setup.\n";
1777 print STDERR "(It was not configured for it at your site.)\n";
1778 print STDERR $ShortUsage;
1783 %************************************************************************
1785 \subsection{Final miscellaneous setup bits before we start going}
1787 %************************************************************************
1789 Record largest specific heapsize, if any.
1791 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1792 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1793 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1794 push(@HsC_rts_flags, "-K$Specific_stk_size");
1796 # hack to avoid running hscpp
1797 $HsCpp = $Cat if ! $Cpp_flag_set;
1800 If no input or link files seen, then we let 'em feed in stdin; this is
1801 mainly for debugging.
1803 if ($#Input_file < 0 && $#Link_file < 0) {
1804 @Input_file = ( '-' );
1806 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1807 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n";
1808 while (<>) { print INF $_; }
1809 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1813 Tell the world who we are, if they asked.
1815 print STDERR "$(PROJECTNAME), version $(PROJECTVERSION) $(PROJECTPATCHLEVEL)\n"
1819 %************************************************************************
1821 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1823 %************************************************************************
1825 Process the input files; don't continue with linking if there are
1826 problems (global variable @$Status@ non-zero).
1828 foreach $ifile (@Input_file) {
1829 &ProcessInputFile($ifile);
1832 if ( $Status > 0 ) { # don't link if there were errors...
1833 print STDERR $ShortUsage;
1839 Link if appropriate.
1842 local($libdirs) = '';
1844 # glue them together:
1845 push(@UserLibrary_dir, @SysLibrary_dir);
1847 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1849 # for a linker, use an explicitly given one, or the going C compiler ...
1850 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1852 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1853 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1855 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $TopClosureFile $libdirs @UserLibrary @SysLibrary";
1856 &run_something($to_do, 'Linker');
1858 # finally, check the consistency info in the binary
1859 local($executable) = $Files_to_tidy[0];
1860 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1863 # dynamically load consistency-chking code; then do it.
1864 require('ghc-consist.prl')
1865 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1867 &chk_consistency_info ( $executable );
1870 # if PVM parallel stuff, we do truly weird things.
1871 # Essentially: (1) move the executable over to where PVM expects
1872 # to find it. (2) create a script in place of the executable
1873 # which will cause the program to be run, via SysMan.
1874 if ( $PARing eq 'p' ) {
1875 local($pvm_executable) = $executable;
1876 local($pvm_executable_base);
1878 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1879 local($pwd) = `pwd`;
1881 $pwd =~ s/^\/tmp_mnt//;
1882 $pvm_executable = "$pwd/$pvm_executable";
1885 $pvm_executable =~ s|/|=|g; # make /s into =s
1886 $pvm_executable_base = $pvm_executable;
1888 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1889 . "/$pvm_executable";
1891 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1893 # OK, now create the magic script for "$executable"
1894 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1895 print EXEC <<EOSCRIPT1;
1897 # =!=!=!=!=!=!=!=!=!=!=!
1898 # This script is automatically generated: DO NOT EDIT!!!
1899 # Generated by Glasgow Haskell, version $(PROJECTVERSION) $(PROJECTPATCHLEVEL)
1901 \$pvm_executable = '$pvm_executable';
1902 \$pvm_executable_base = '$pvm_executable_base';
1903 \$SysMan = '$SysMan';
1906 print EXEC <<\EOSCRIPT2;
1907 # first, some magical shortcuts to run "commands" on the binary
1909 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1911 system("$cmd $pvm_executable");
1915 # OK, really run it; process the args first
1916 $ENV{'PE'} = $pvm_executable_base;
1918 $nprocessors = 2; # the default
1922 # ToDo: handle --RTS
1923 args: while ($a = shift(@ARGV)) {
1924 if ( $a eq '+RTS' ) {
1926 } elsif ( $a eq '-RTS' ) {
1929 if ( $a eq '-d' && $in_RTS_args ) {
1931 } elsif ( $a =~ /^-N(\d+)/ && $in_RTS_args ) {
1934 push(@nonPVM_args, $a);
1938 local($return_val) = 0;
1939 system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args");
1941 system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr";
1944 close(EXEC) || die "Failed closing $executable\n";
1945 chmod 0755, $executable;
1949 # that... that's all, folks!
1951 exit $Status; # will still be 0 if all went well
1954 %************************************************************************
1956 \section[Driver-do-one-file]{How to process a single input file}
1958 %************************************************************************
1961 sub ProcessInputFile {
1962 local($ifile) = @_; # input file name
1963 local($ifile_root); # root of or basename of input file
1964 local($ofile_target); # ultimate output file we hope to produce
1965 # from input file (need to know for recomp
1966 # checking purposes)
1967 local($hifile_target);# ditto (but .hi file)
1970 Handle the weirdity of input from stdin.
1972 if ($ifile ne '-') {
1973 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1974 $ofile_target = # may be reset later...
1975 ($Specific_output_file ne '' && ! $Do_lnkr)
1976 ? $Specific_output_file
1977 : &odir_ify($ifile_root, 'o');
1978 $hifile_target= ($Specific_hi_file ne '')
1980 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1981 # NB: may change if $ifile_root isn't module name (??)
1983 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1984 $ifile_root = '_stdin';
1985 $ofile_target = '_stdout'; # gratuitous?
1986 $hifile_target= '_stdout'; # ditto?
1990 We need to decide what phases of the compilation system we will run
1991 over this file. The defaults are the ones established when processing
1992 flags. (That established what the last phase run for all files is.)
1994 We do the pre-recompilation-checker phases here; the rest later.
1998 Look at the suffix and decide what initial phases of compilation may
1999 be dropped off for this file. Also the rather boring business of
2000 which files are coming-in/going-out.
2002 Again, we'll do the post-recompilation-checker parts of this later.
2004 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
2005 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
2007 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
2009 : ( ($HscOut eq '-C=') ? 1 : 0 );
2010 local($do_as) = $Do_as;
2012 # names of the files to stuff between phases
2013 # defaults are temporaries
2014 local($in_lit2pgm) = $ifile;
2015 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
2016 local($hscpp_hsc) = "$Tmp_prefix.cpp";
2017 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
2018 local($hsc_hi) = "$Tmp_prefix.hi";
2019 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
2020 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
2021 local($as_out) = $ofile_target;
2023 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
2025 if ($ifile =~ /\.lhs$/) {
2026 ; # nothing to change
2027 } elsif ($ifile =~ /\.hs$/) {
2029 $lit2pgm_hscpp = $ifile;
2030 } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better
2031 $do_lit2pgm = 0; $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
2033 } elsif ($ifile =~ /\.c$/) {
2034 $do_lit2pgm = 0; $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
2035 $hsc_out = $ifile; $is_hc_file = 0;
2036 } elsif ($ifile =~ /\.s$/) {
2037 $do_lit2pgm = 0; $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
2039 } else { # don't know what it is, but nothing to do herein...
2040 $do_lit2pgm = 0; $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
2043 # OK, have a bash on the first two phases:
2044 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
2047 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc)
2051 We now think about whether to run hsc/cc or not (when hsc produces .s
2052 stuff, it effectively takes the place of both phases).
2054 To get the output file name right: for each phase that we are {\em
2055 not} going to run, set its input (i.e., the output of its preceding
2056 phase) to @"$ifile_root.<suffix>"@.
2058 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
2060 if (! $do_cc && ! $do_as) { # stopping after hsc
2061 $hsc_out = ($Specific_output_file ne '')
2062 ? $Specific_output_file
2063 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
2065 $ofile_target = $hsc_out; # reset
2068 if (! $do_as) { # stopping after gcc (or hsc)
2069 $cc_as = ($Specific_output_file ne '')
2070 ? $Specific_output_file
2071 : &odir_ify($ifile_root, ( $Only_preprocess_C ) ? 'i' : 's');
2073 $ofile_target = $cc_as; # reset
2078 Check if hsc needs to be run at all.
2081 local($more_processing_required) = 1;
2083 if ( $Do_recomp_chkr && $do_hsc && ! $going_interactive ) {
2084 # recompilation-checking is important enough to live off by itself
2085 require('ghc-recomp.prl')
2086 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-recomp.prl!\n");
2088 $more_processing_required
2089 = &runRecompChkr($ifile, $hscpp_hsc, $ifile_root, $ofile_target, $hifile_target);
2091 if ( ! $more_processing_required ) {
2092 print STDERR "$Pgm:recompile: NOT NEEDED!\n"; # Yay!
2093 # propagate dependency:
2094 &run_something("touch $ofile_target", "Touch $ofile_target, to propagate dependencies");
2098 $do_hsc = 0, $do_cc = 0, $do_as = 0 if ! $more_processing_required;
2104 &runHsc($ifile_root, $hsc_out, $hsc_hi, $going_interactive);
2106 # interface-handling is important enough to live off by itself
2107 require('ghc-iface.prl')
2108 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
2110 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
2112 # save a copy of the .hc file, even if we are carrying on...
2113 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
2114 local($to_do) = "$Rm $ifile_root.hc; $Cp $hsc_out $ifile_root.hc";
2115 &run_something($to_do, 'Saving copy of .hc file');
2118 # save a copy of the .s file, even if we are carrying on...
2119 if ($HscOut eq '-S=' && $do_as && $Keep_s_file_too) {
2120 local($to_do) = "$Rm $ifile_root.s; $Cp $hsc_out $ifile_root.s";
2121 &run_something($to_do, 'Saving copy of .s file');
2124 # if we're going to split up object files,
2125 # we inject split markers into the .hc file now
2126 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
2127 &inject_split_markers ( $hsc_out );
2132 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
2133 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root);
2136 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
2138 &runAs($as_out, $ifile_root) if $do_as;
2141 Finally, decide what to queue up for linker input.
2143 # tentatively assume we will eventually produce linker input:
2144 push(@Link_file, &odir_ify($ifile_root, 'o'));
2146 #ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix";
2148 if ( $ifile !~ /\.(lhs|hs|hc|c|s)$/ && $ifile !~ /_hc$/ ) {
2149 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n"
2150 if $ifile !~ /\.a$/;
2152 # oops; we tentatively pushed the wrong thing; fix & do the right thing
2153 pop(@Link_file); push(@Link_file, $ifile);
2156 } # end of ProcessInputFile
2159 %************************************************************************
2161 \section[Driver-run-phases]{Routines to run the various phases}
2163 %************************************************************************
2167 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
2169 local($to_do) = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && ".
2170 "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
2171 @Files_to_tidy = ( $lit2pgm_hscpp );
2173 &run_something($to_do, 'literate pre-processor');
2179 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
2183 if ($HsCpp eq $Cat) {
2184 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $hscpp_hsc && ".
2185 "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
2186 @Files_to_tidy = ( $hscpp_hsc );
2187 &run_something($to_do, 'Ineffective C pre-processor');
2189 local($includes) = '-I' . join(' -I',@Include_dir);
2190 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $hscpp_hsc && ".
2191 "$HsCpp $Verbose $genSPECS_flag @HsCpp_flags -D__HASKELL1__=$Haskell1Version -D__GLASGOW_HASKELL__=$GhcVersionInfo $includes $lit2pgm_hscpp >> $hscpp_hsc";
2192 @Files_to_tidy = ( $hscpp_hsc );
2193 &run_something($to_do, 'Haskellised C pre-processor');
2200 local($ifile_root, $hsc_out, $hsc_hi, $going_interactive) = @_;
2202 # prepend comma to HsP flags (so hsc can tell them apart...)
2203 foreach $a ( @HsP_flags ) { $a = ",$a" unless $a =~ /^,/; }
2205 &makeHiMap() unless $HiMapDone;
2206 push(@HsC_flags, "-himap=$HiMapFile");
2208 # here, we may produce .hc/.s and/or .hi files
2209 local($output) = '';
2210 @Files_to_tidy = ();
2212 if ( $going_interactive ) {
2213 # don't need .hi unless going to show it on stdout:
2214 $ProduceHi = '-nohifile=' if ! $HiOnStdout;
2215 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
2218 # set up for producing output/.hi; note that flag twiddling
2219 # may mean that nothing will actually be produced:
2220 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out";
2221 @Files_to_tidy = ( $hsc_hi, $hsc_out );
2223 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
2224 if ( $CollectingGCstats ) {
2225 push(@HsC_rts_flags, "-S$ifile_root.stat");
2226 push(@Files_to_tidy, "$ifile_root.stat");
2229 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
2230 # emit nofibbish time/bytes-alloc stats to stderr;
2231 # see later .stat file post-processing
2232 push(@HsC_rts_flags, "-s$Tmp_prefix.stat");
2233 push(@Files_to_tidy, "$Tmp_prefix.stat");
2237 if ($Specific_dump_file ne '') {
2238 $dump = "2>> $Specific_dump_file";
2239 $Using_dump_file = 1;
2243 $to_do = "$HsC @HsP_flags ,$hscpp_hsc $dump @HsC_flags $CoreLint $Verbose $output +RTS @HsC_rts_flags";
2244 &run_something($to_do, 'Haskell compiler');
2246 # finish business w/ nofibbish time/bytes-alloc stats
2247 &process_ghc_timings() if $CollectGhcTimings;
2249 # if non-interactive, heave in the consistency info at the end
2250 # NB: pretty hackish (depends on how $output is set)
2251 if ( ! $going_interactive ) {
2252 if ( $HscOut eq '-C=' ) {
2253 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
2255 } elsif ( $HscOut eq '-S=' ) {
2256 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
2257 $consist =~ s/,/./g;
2258 $consist =~ s/\//./g;
2259 $consist =~ s/-/_/g;
2260 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
2261 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
2263 &run_something($to_do, 'Pin on Haskell consistency info');
2268 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
2269 of (module-name, pathname) pairs, one per line, separated by a space.
2277 # collect in %HiMap; write later; also used elsewhere in driver
2279 local($mod, $path, $d, $e);
2281 foreach $d ( @Import_dir ) {
2282 opendir(DIR, $d) || &tidy_up_and_die(1,"$Pgm: error when reading directory: $d\n");
2283 local(@entry) = readdir(DIR);
2284 foreach $e ( @entry ) {
2285 next unless $e =~ /([A-Z][A-Za-z0-9_]*)\.$HiSuffix$/o;
2290 if ( ! defined($HiMap{$mod}) ) {
2291 $HiMap{$mod} = $path;
2293 &already_mapped_err($mod, $HiMap{$mod}, $path);
2296 closedir(DIR); # || &tidy_up_and_die(1,"$Pgm: error when closing directory: $d\n");
2299 foreach $d ( @SysImport_dir ) {
2300 opendir(DIR, $d) || &tidy_up_and_die(1,"$Pgm: error when reading directory: $d\n");
2301 local(@entry) = readdir(DIR);
2302 foreach $e ( @entry ) {
2303 next unless $e =~ /([A-Z][A-Za-z0-9_]*)\.$SysHiSuffix$/o;
2304 next if $NoImplicitPrelude && $e =~ /Prelude\.$SysHiSuffix$/o;
2310 if ( ! defined($HiMap{$mod}) ) {
2311 $HiMap{$mod} = $path;
2312 } elsif ( $mod ne 'Main' ) { # saves useless warnings...
2313 &already_mapped_err($mod, $HiMap{$mod}, $path);
2316 closedir(DIR); # || &tidy_up_and_die(1,"$Pgm: error when closing directory: $d\n");
2319 $HiMapFile = "$Tmp_prefix.himap";
2321 open(HIMAP, "> $HiMapFile") || &tidy_up_and_die(1,"$Pgm: can't open $HiMapFile\n");
2322 foreach $d (keys %HiMap) {
2323 print HIMAP $d, ' ', $HiMap{$d}, "\n";
2325 close(HIMAP) || &tidy_up_and_die(1,"$Pgm: error when closing $HiMapFile\n");
2330 sub already_mapped_err {
2331 local($mod, $mapped_to, $path) = @_;
2333 # OK, it isn't really an error if $mapped_to and $path turn
2334 # out to be the same thing.
2335 ($m_dev,$m_ino,$m_mode,$m_nlink,$m_uid,$m_gid,$m_rdev,$m_size,
2336 $m_atime,$m_mtime,$m_ctime,$m_blksize,$m_blocks) = stat($mapped_to);
2337 ($p_dev,$p_ino,$p_mode,$p_nlink,$p_uid,$p_gid,$p_rdev,$p_size,
2338 $p_atime,$p_mtime,$p_ctime,$p_blksize,$p_blocks) = stat($path);
2340 return if $m_ino == $p_ino; # same inode number
2342 print STDERR "$Pgm: module $mod already mapped to $mapped_to";
2343 print STDERR ";\n\tignoring: $path\n";
2347 %************************************************************************
2349 \section[Driver-misc-utils]{Miscellaneous utilities}
2351 %************************************************************************
2353 %************************************************************************
2355 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
2357 %************************************************************************
2361 local($ofile,$def_suffix) = @_;
2363 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
2367 local($orig_file, $def_suffix) = @_;
2368 if ($Specific_output_dir eq '') { # do nothing
2369 &osuf_ify($orig_file, $def_suffix);
2371 local ($orig_file_only);
2372 ($orig_file_only = $orig_file) =~ s|.*/||;
2373 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
2380 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
2382 local($includes) = '-I' . join(' -I', @Include_dir);
2385 local($c_flags) = "@CcBoth_flags";
2386 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2388 # "input" files to use that are not in some weird directory;
2389 # to help C compilers grok .hc files [ToDo: de-hackify]
2390 local($cc_help) = "ghc$$.c";
2391 local($cc_help_s) = "ghc$$.s";
2394 $s_output = ($is_hc_file || $TargetPlatform =~ /^(hppa|i386)/) ? $cc_as_o : $cc_as;
2395 $c_flags .= " @CcRegd_flags";
2396 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2398 # C compiler won't like the .hc extension. So we create
2399 # a tmp .c file which #include's the needful.
2400 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2401 if ( $is_hc_file ) {
2403 #ifdef __STG_GCC_REGS__
2404 # if ! (defined(MAIN_REG_MAP) || defined(MARK_REG_MAP) || defined(SCAN_REG_MAP) || defined(SCAV_REG_MAP) || defined(FLUSH_REG_MAP))
2405 # define MAIN_REG_MAP
2408 #include "stgdefs.h"
2410 # user may have asked for #includes to be injected...
2411 print TMP @CcInjects if $#CcInjects >= 0;
2413 # heave in the consistency info
2414 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2416 # and #include the real source
2417 print TMP "#include \"$hsc_out\"\n";
2418 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2420 local($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 )";
2421 # note: __GLASGOW_HASKELL__ is pointedly *not* #defined at the C level.
2422 if ( $Only_preprocess_C ) { # HACK ALERT!
2423 $to_do =~ s/ -S\b//g;
2425 @Files_to_tidy = ( $cc_help, $cc_help_s, $s_output );
2426 $PostprocessCcOutput = 1; # hack, dear hack...
2427 &run_something($to_do, 'C compiler');
2428 $PostprocessCcOutput = 0;
2429 unlink($cc_help, $cc_help_s);
2435 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2437 if ( $is_hc_file ) {
2438 # dynamically load assembler-fiddling code, which we are about to use:
2439 require('ghc-asm.prl')
2440 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2443 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2446 # post-process the assembler [.hc files only]
2447 &mangle_asm($cc_as_o, $cc_as);
2450 #OLD: local($target) = 'oops';
2451 #OLD: $target = '-alpha' if $TargetPlatform =~ /^alpha-/;
2452 #OLD: $target = '-hppa' if $TargetPlatform =~ /^hppa/;
2453 #OLD: $target = '-old-asm' if $TargetPlatform =~ /^i386-/;
2454 #OLD: $target = '-m68k' if $TargetPlatform =~ /^m68k-/;
2455 #OLD: $target = '-mips' if $TargetPlatform =~ /^mips-/;
2456 #OLD: $target = '' if $TargetPlatform =~ /^powerpc-/;
2457 #OLD: $target = '-solaris' if $TargetPlatform =~ /^sparc-sun-solaris2/;
2458 #OLD: $target = '-sparc' if $TargetPlatform =~ /^sparc-sun-sunos4/;
2460 #OLD: if ( $target ne '' ) {
2461 #OLD: require("ghc-asm$target.prl")
2462 #OLD: || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm$target.prl!\n");
2463 #OLD: &mangle_asm($cc_as_o, "$cc_as-2"); # the OLD one!
2464 #OLD: &run_something("$Cmp -s $cc_as-2 $cc_as || $Diff $cc_as-2 $cc_as 1>&2 || exit 0",
2465 #OLD: "Diff'ing old and new mangled .s files"); # NB: to stderr
2468 } elsif ($TargetPlatform =~ /^hppa/) {
2469 # minor mangling of non-threaded files for hp-pa only
2470 require('ghc-asm.prl')
2471 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2472 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2474 } elsif ($TargetPlatform =~ /^i386/) {
2475 # extremely-minor OFFENSIVE mangling of non-threaded just one file
2476 require('ghc-asm.prl')
2477 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2478 &mini_mangle_asm_i386($cc_as_o, $cc_as);
2481 # save a copy of the .s file, even if we are carrying on...
2482 if ($do_as && $Keep_s_file_too) {
2483 local($to_do) = "$Rm $ifile_root.s; $Cp $cc_as $ifile_root.s";
2484 &run_something($to_do, 'Saving copy of .s file');
2491 local($as_out, $ifile_root) = @_;
2493 local($asmblr) = ( $As ) ? $As : $CcRegd;
2495 if ( ! $SplitObjFiles ) {
2496 local($to_do) = "$asmblr -o $as_out -c @As_flags $cc_as";
2497 @Files_to_tidy = ( $as_out );
2498 &run_something($to_do, 'Unix assembler');
2500 } else { # more complicated split-ification...
2502 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2504 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2505 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2506 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2507 @Files_to_tidy = ( $split_out );
2509 &run_something($to_do, 'Unix assembler');
2515 %************************************************************************
2517 \subsection[Driver-run-something]{@run_something@: Run a phase}
2519 %************************************************************************
2523 local($str_to_do, $tidy_name) = @_;
2525 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2526 print STDERR "$str_to_do\n" if $Verbose;
2528 if ($Using_dump_file) {
2529 open(DUMP, ">> $Specific_dump_file")
2530 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2531 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2533 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2536 local($return_val) = 0;
2537 system("$Time $str_to_do");
2540 if ( $PostprocessCcOutput ) { # hack, continued
2541 open(CCOUT, "< $Tmp_prefix.ccout")
2542 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2544 next if /attribute directive ignored/;
2545 next if /call-clobbered/;
2546 next if /from .*COptRegs\.lh/;
2547 next if /from .*(stg|rts)defs\.h:/;
2548 next if /from ghc\d+.c:\d+:/;
2549 next if /from .*\.lc/;
2550 next if /from .*SMinternal\.l?h/;
2551 next if /ANSI C does not support \`long long\'/;
2552 next if /warning:.*was declared \`extern\' and later \`static\'/;
2553 next if /warning: assignment discards \`const\' from pointer target type/;
2554 next if /: At top level:$/;
2555 next if /: In function \`.*\':$/;
2556 next if /\`ghc_cc_ID\' defined but not used/;
2559 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2562 if ($return_val != 0) {
2563 if ($Using_dump_file) {
2564 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2567 &tidy_up_and_die($return_val, '');
2569 $Using_dump_file = 0;
2573 %************************************************************************
2575 \subsection[Driver-ghctiming]{Emit nofibbish GHC timings}
2577 %************************************************************************
2579 NB: nearly the same as in @runstdtest@ script.
2582 sub process_ghc_timings {
2583 local($StatsFile) = "$Tmp_prefix.stat";
2584 local($SysSpecificTiming) = 'ghc';
2586 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2587 local($tot_live) = 0; # for calculating avg residency
2590 $tot_live += $1 if /^\s*\d+\s+\d+\s+\d+\.\d+\%\s+(\d+)\s+\d+\.\d+\%/;
2592 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2594 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2595 $MaxResidency = $1; $ResidencySamples = $2;
2598 $GCs = $1 if /^\s*([0-9,]+) garbage collections? performed/;
2600 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2601 $InitTime = $1; $InitElapsed = $2;
2602 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2603 $MutTime = $1; $MutElapsed = $2;
2604 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2605 $GcTime = $1; $GcElapsed = $2;
2608 close(STATS) || die "Failed when closing $StatsFile\n";
2609 if ( defined($ResidencySamples) && $ResidencySamples > 0 ) {
2610 $AvgResidency = int ($tot_live / $ResidencySamples) ;
2613 # warn about what we didn't find
2614 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2615 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2616 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2617 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2618 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2619 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2620 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2621 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2623 # things we didn't necessarily expect to find
2624 $MaxResidency = 0 unless defined($MaxResidency);
2625 $AvgResidency = 0 unless defined($AvgResidency);
2626 $ResidencySamples = 0 unless defined($ResidencySamples);
2629 $BytesAlloc =~ s/,//g;
2630 $MaxResidency =~ s/,//g;
2632 $InitTime =~ s/,//g;
2633 $InitElapsed =~ s/,//g;
2635 $MutElapsed =~ s/,//g;
2637 $GcElapsed =~ s/,//g;
2639 # print out what we found
2640 print STDERR "<<$SysSpecificTiming: ",
2641 "$BytesAlloc bytes, $GCs GCs, $AvgResidency/$MaxResidency avg/max bytes residency ($ResidencySamples samples), $InitTime INIT ($InitElapsed elapsed), $MutTime MUT ($MutElapsed elapsed), $GcTime GC ($GcElapsed elapsed)",
2642 " :$SysSpecificTiming>>\n";
2649 %************************************************************************
2651 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2653 %************************************************************************
2657 local($to_do) = "\n$Rm $Tmp_prefix*";
2658 if ( $Tmp_prefix !~ /^\s*$/ ) {
2659 print STDERR "$to_do\n" if $Verbose;
2664 sub tidy_up_and_die {
2665 local($return_val, $msg) = @_;
2667 # delete any files to tidy
2668 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2669 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2673 exit (($return_val == 0) ? 0 : 1);
2677 %************************************************************************
2679 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2681 %************************************************************************
2683 Some command-line arguments take an argument, e.g.,
2684 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2685 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2686 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2688 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2689 gobble the second argument (and probably set the heapsize to something
2693 local($option, $rest_of_arg) = @_;
2696 return($rest_of_arg);
2697 } elsif ($#ARGV >= 0) {
2698 local($temp) = $ARGV[0]; shift(@ARGV);
2701 print STDERR "$Pgm: no argument following $option option\n";
2712 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2714 foreach $f ( @HsC_antiflags ) {
2715 return(0) if $flag eq $f;
2717 # foreach $f ( @HsC_flags ) {
2718 # return(0) if $flag eq $f;
2723 sub squashHscFlag { # pretty terrible
2727 foreach $f ( @HsC_flags ) {
2728 if ($flag eq $f) { $f = ''; }
2736 foreach $f ( @flags ) {
2737 push( @HsC_flags, $f ) if &isntAntiFlag($f);