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 Unix assembler
35 - ld: run the Unix linker
37 For each input file, the phase to START with is determined by the
39 - .lhs literate Haskell: lit2pgm
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 = '-fspecialise';
212 $Oopt_FoldrBuild = 1; # On by default!
213 $Oopt_FB_Support = '-fdo-arity-expand';
214 #$Oopt_FoldrBuildWW = 0; # Off by default
215 $Oopt_FoldrBuildInline = '-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" );
411 $GhcVersionInfo = int ($(PROJECTVERSION) * 100);
412 $Haskell1Version = 3; # i.e., Haskell 1.3
415 @UserLibrary_dir= (); #-L things;...
416 @UserLibrary = (); #-l things asked for by the user
418 @SysLibrary_dir = ( ( $(INSTALLING) ) #-syslib things supplied by the system
420 : ("$TopPwd/$(CURRENT_DIR)/$(GHC_RUNTIMESRC)",
421 "$TopPwd/$(CURRENT_DIR)/$(GHC_RUNTIMESRC)/gmp",
422 "$TopPwd/$(CURRENT_DIR)/$(GHC_LIBSRC)")
424 @SysLibrary = ( '-lHS' ); # basic I/O and prelude stuff
426 $TopClosureFile # defaults to 1.2 one; will be mangled later
427 = ( $(INSTALLING) ) ? "$InstLibDirGhc/TopClosureXXXX.o"
428 : "$TopPwd/$(CURRENT_DIR)/$(GHC_RUNTIMESRC)/main/TopClosureXXXX.o";
431 We are given a list of files with various presumably-known suffixes
432 (unknown-suffix files go straight to the linker). For each file, we
433 begin by assuming that we'll run every phase over it. However: (1)
434 global flags (\tr{-c}, \tr{-S}, etc.) tell us not to run any phase
435 past a certain point; and (2) the file's suffix tells us what phase to
436 start with. Linking is weird and kept track of separately.
438 Here are the initial defaults applied to all files:
440 $Cpp_flag_set = 0; # (hack)
441 $Only_preprocess_C = 0; # pretty hackish
442 $PostprocessCcOutput = 0;
444 # native code-gen or via C?
445 $HaveNativeCodeGen = $(GHC_WITH_NATIVE_CODEGEN);
446 $HscOut = '-C='; # '-C=' ==> .hc output; '-S=' ==> .s output; '-N=' ==> neither
448 if $HaveNativeCodeGen && $TargetPlatform =~ /^(alpha|sparc|i386)-/;
449 $ProduceHi = '-hifile=';
453 $CollectingGCstats = 0;
454 $CollectGhcTimings = 0;
455 $DEBUGging = ''; # -DDEBUG and all that it entails (um... not really)
456 $PROFing = ''; # set to p or e if profiling
457 $PROFgroup = ''; # set to group if an explicit -Ggroup specified
458 $PROFauto = ''; # set to relevant hsc flag if -auto or -auto-all
459 $PROFcaf = ''; # set to relevant hsc flag if -caf-all
460 $PROFignore_scc = ''; # set to relevant parser flag if explicit sccs ignored
461 $UNPROFscc_auto = ''; # set to relevant hsc flag if forcing auto sccs without profiling
462 $TICKYing = ''; # set to t if compiling for ticky-ticky profiling
463 $PARing = ''; # set to p if compiling for PAR
464 $CONCURing = ''; # set to c if compiling for CONCURRENT
465 $GRANing = ''; # set to g if compiling for GRAN
466 $StkChkByPageFaultOK = 1; # may be set to 0 (false) for some builds
467 $Specific_output_dir = ''; # set by -odir <dir>
468 $Specific_output_file = ''; # set by -o <file>; "-" for stdout
469 $Specific_hi_file = ''; # set by -ohi <file>; "-" for stdout
470 $Specific_dump_file = ''; # set by -odump <file>; "-" for stdout
471 $Using_dump_file = 0;
472 $Osuffix = ''; # default: use the normal suffix for that kind of output
475 $Do_recomp_chkr = 0; # don't use the recompilatio checker unless asked
476 $Do_cc = -1; # a MAGIC indeterminate value; will be set to 1 or 0.
479 $Keep_hc_file_too = 0;
480 $Keep_s_file_too = 0;
481 $UseGhcInternals = 0; # if 1, may use GHC* modules
484 $Dump_parser_output = 0;
486 $Dump_asm_splitting_info = 0;
487 $NoImplicitPrelude = 0;
489 # and the list of files
492 # and files to be linked...
496 We inject consistency-checking information into \tr{.hc} files (both
497 when created by the Haskell compiler and when compiled by the C
498 compiler), so that we can check that an executable is made from
499 consistently-built pieces. (The check is normally done just after
500 linking.) The checking is done by introducing/munging
501 \tr{what(1)}-style strings. Anyway, here are the relevant global
502 variables and their defaults:
504 $LinkChk = 1; # set to 0 if the link check should *not* be done
506 # major & minor version numbers; major numbers must always agree;
507 # minor disagreements yield a warning.
508 $HsC_major_version = 30;
509 $HsC_minor_version = 0;
510 $Cc_major_version = 35;
511 $Cc_minor_version = 0;
513 # options: these must always agree
514 $HsC_consist_options = ''; # we record, in this order:
515 # Build tag; debugging?
516 $Cc_consist_options = ''; # we record, in this order:
517 # Build tag; debugging?
520 %************************************************************************
522 \section[Driver-parse-argv]{Munge the command-line options}
524 %************************************************************************
526 Now slurp through the arguments.
529 #---------- user defined prelude ---------------------------------------
531 if (grep(/^-user-prelude$/, @ARGV)) {
533 # If ARGV contains -user-prelude we are compiling a piece of
534 # prelude for the user, probably with additional specialise pragmas
536 # We strip out the -O -f and -user-prelude flags provided on
537 # the command line and add the ones used to compile the prelude
538 # ToDo: get these options from a common definition in mkworld
540 # We also enable any options forced through with -user-prelude-force
542 # Hey, Check out this grep statement ;-) (PS)
544 @ARGV = grep((!/^-O/ && !/^-f/ && !/^-user-prelude$/) || s/^-user-prelude-force//,
548 '-fcompiling-ghc-internals=???', # ToDo!!!!
550 '-fshow-pragma-name-errs',
551 '-fshow-import-specs',
557 print STDERR "ghc: -user-prelude options:\n", "@ARGV", "\n";
560 # can't use getopt(s); what we want is too complicated
561 arg: while($_ = $ARGV[0]) {
564 #---------- help -------------------------------------------------------
565 if (/^-\?$/ || /^-help$/) { print $LongUsage; exit $Status; }
567 #---------- verbosity and such -----------------------------------------
568 /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; };
570 #---------- what phases are to be run ----------------------------------
571 /^-short$/ && do { $Do_recomp_chkr = 1; next arg; };
573 /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; };
574 # change the global default:
575 # we won't run cat; we'll run the real thing
577 /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C=';
579 # stop after generating C
581 /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile=';
582 $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0;
584 # leave out actual C generation (debugging) [also turns off interface gen]
586 /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; };
587 # _do_ generate an interface; usually used as: -noC -hi
589 /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; };
590 # don't generate an interface (even if generating C)
592 /^-hi-diffs$/ && do { $HiDiff_flag = 1; next arg; };
593 /^-no-hi-diffs$/ && do { $HiDiff_flag = 0; next arg; };
594 # show/disable diffs if the interface file changes
596 /^-E$/ && do { push(@CcBoth_flags, '-E');
597 $Only_preprocess_C = 1;
598 $Do_as = 0; $Do_lnkr = 0; next arg; };
599 # stop after preprocessing C
601 /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; };
602 # stop after generating assembler
604 /^-c$/ && do { $Do_lnkr = 0; next arg; };
605 # stop after generating .o files
607 /^-link-chk$/ && do { $LinkChk = 1; next arg; };
608 /^-no-link-chk$/ && do { $LinkChk = 0; next arg; };
609 # don't do consistency-checking after a link
611 /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg('-tmpdir', '');
612 $Tmp_prefix = "$Tmp_prefix/ghc$$";
613 $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it...
615 # use an alternate directory for temp files
617 #---------- redirect output --------------------------------------------
619 # -o <file>; applies to the last phase, whatever it is
620 # "-o -" sends it to stdout
621 # if <file> has a directory component, that dir must already exist
623 /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg('-odir', '');
624 if (! -d $Specific_output_dir) {
625 print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n";
630 /^-o$/ && do { $Specific_output_file = &grab_arg_arg('-o', '');
631 if ($Specific_output_file ne '-'
632 && $Specific_output_file =~ /(.*)\/[^\/]*$/) {
633 local($dir_part) = $1;
634 if (! -d $dir_part) {
635 print STDERR "$Pgm: no such directory: $dir_part\n";
641 /^-osuf$/ && do { $Osuffix = &grab_arg_arg('-osuf', '');
642 if ($Osuffix =~ /\./ ) {
643 print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n";
648 # -ohi <file>; send the interface to <file>; "-ohi -" to send to stdout
649 /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg('-ohi', '');
650 if ($Specific_hi_file ne '-'
651 && $Specific_hi_file =~ /(.*)\/[^\/]*$/) {
652 local($dir_part) = $1;
653 if (! -d $dir_part) {
654 print STDERR "$Pgm: no such directory: $dir_part\n";
660 /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg('-hisuf', '');
661 if ($HiSuffix =~ /\./ ) {
662 print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n";
666 /^-hisuf-prelude$/ && do { # as esoteric as they come...
667 $SysHiSuffix = &grab_arg_arg('-hisuf-prelude', '');
668 if ($SysHiSuffix =~ /\./ ) {
669 print STDERR "$Pgm: -hisuf-prelude suffix shouldn't contain a .\n";
674 /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg('-odump', '');
675 if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) {
676 local($dir_part) = $1;
677 if (! -d $dir_part) {
678 print STDERR "$Pgm: no such directory: $dir_part\n";
684 #-------------- scc & Profiling Stuff ----------------------------------
686 /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later!
689 # generate auto SCCs on top level bindings
690 # -auto-all = all top level bindings
691 # -auto = only top level exported bindings
692 $PROFauto = ( /-all/ )
693 ? '-fauto-sccs-on-all-toplevs'
694 : '-fauto-sccs-on-exported-toplevs';
697 /^-caf-all/ && do { # generate individual CAF SCC annotations
698 $PROFcaf = '-fauto-sccs-on-individual-cafs';
701 /^-ignore-scc$/ && do {
702 # forces ignore of scc annotations even if profiling
703 $PROFignore_scc = '-W';
706 /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres
709 /^-unprof-scc-auto/ && do {
710 # generate auto SCCs on top level bindings when not profiling
711 # used to measure optimisation effects of presence of sccs
712 $UNPROFscc_auto = ( /-all/ )
713 ? '-fauto-sccs-on-all-toplevs'
714 : '-fauto-sccs-on-exported-toplevs';
717 #--------- ticky/concurrent/parallel -----------------------------------
718 # we sort out the details a bit later on
720 /^-concurrent$/ && do { $CONCURing = 'c'; next arg; }; # concurrent Haskell
721 /^-gransim$/ && do { $GRANing = 'g'; next arg; }; # GranSim
722 /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky
723 /^-parallel$/ && do { $PARing = 'p'; next arg; } ; # parallel Haskell
725 #-------------- "user ways" --------------------------------------------
727 (/^-user-setup-([a-oA-Z])$/
728 || /^$(GHC_BUILD_FLAG_a)$/
729 || /^$(GHC_BUILD_FLAG_b)$/
730 || /^$(GHC_BUILD_FLAG_c)$/
731 || /^$(GHC_BUILD_FLAG_d)$/
732 || /^$(GHC_BUILD_FLAG_e)$/
733 || /^$(GHC_BUILD_FLAG_f)$/
734 || /^$(GHC_BUILD_FLAG_g)$/
735 || /^$(GHC_BUILD_FLAG_h)$/
736 || /^$(GHC_BUILD_FLAG_i)$/
737 || /^$(GHC_BUILD_FLAG_j)$/
738 || /^$(GHC_BUILD_FLAG_k)$/
739 || /^$(GHC_BUILD_FLAG_l)$/
740 || /^$(GHC_BUILD_FLAG_m)$/
741 || /^$(GHC_BUILD_FLAG_n)$/
742 || /^$(GHC_BUILD_FLAG_o)$/
743 || /^$(GHC_BUILD_FLAG_A)$/
744 || /^$(GHC_BUILD_FLAG_B)$/
746 || /^$(GHC_BUILD_FLAG_2s)$/ # GC ones...
747 || /^$(GHC_BUILD_FLAG_1s)$/
748 || /^$(GHC_BUILD_FLAG_du)$/
750 /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; };
752 /^$(GHC_BUILD_FLAG_a)$/ && do { $BuildTag = '_a'; };
753 /^$(GHC_BUILD_FLAG_b)$/ && do { $BuildTag = '_b'; };
754 /^$(GHC_BUILD_FLAG_c)$/ && do { $BuildTag = '_c'; };
755 /^$(GHC_BUILD_FLAG_d)$/ && do { $BuildTag = '_d'; };
756 /^$(GHC_BUILD_FLAG_e)$/ && do { $BuildTag = '_e'; };
757 /^$(GHC_BUILD_FLAG_f)$/ && do { $BuildTag = '_f'; };
758 /^$(GHC_BUILD_FLAG_g)$/ && do { $BuildTag = '_g'; };
759 /^$(GHC_BUILD_FLAG_h)$/ && do { $BuildTag = '_h'; };
760 /^$(GHC_BUILD_FLAG_i)$/ && do { $BuildTag = '_i'; };
761 /^$(GHC_BUILD_FLAG_j)$/ && do { $BuildTag = '_j'; };
762 /^$(GHC_BUILD_FLAG_k)$/ && do { $BuildTag = '_k'; };
763 /^$(GHC_BUILD_FLAG_l)$/ && do { $BuildTag = '_l'; };
764 /^$(GHC_BUILD_FLAG_m)$/ && do { $BuildTag = '_m'; };
765 /^$(GHC_BUILD_FLAG_n)$/ && do { $BuildTag = '_n'; };
766 /^$(GHC_BUILD_FLAG_o)$/ && do { $BuildTag = '_o'; };
767 /^$(GHC_BUILD_FLAG_A)$/ && do { $BuildTag = '_A'; };
768 /^$(GHC_BUILD_FLAG_B)$/ && do { $BuildTag = '_B'; };
770 /^$(GHC_BUILD_FLAG_2s)$/ && do { $BuildTag = '_2s'; };
771 /^$(GHC_BUILD_FLAG_1s)$/ && do { $BuildTag = '_1s'; };
772 /^$(GHC_BUILD_FLAG_du)$/ && do { $BuildTag = '_du'; };
774 local($stuff) = $UserSetupOpts{$BuildTag};
775 local(@opts) = split(/\s+/, $stuff);
777 # feed relevant ops into the arg-processing loop (if any)
778 unshift(@ARGV, @opts) if $#opts >= 0;
782 #---------- set search paths for libraries and things ------------------
784 # we do -i just like HBC (-i clears the list; -i<colon-separated-items>
785 # prepends the items to the list); -I is for including C .h files.
787 /^-i$/ && do { @Import_dir = (); # import path cleared!
789 print STDERR "WARNING: import paths cleared by `-i'\n";
792 /^-i(.*)/ && do { local(@new_items)
793 = split( /:/, &grab_arg_arg('-i', $1));
794 unshift(@Import_dir, @new_items);
797 /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg('-I', $1)); next arg; };
798 /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg('-L', $1)); next arg; };
799 /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg('-l', $1)); next arg; };
801 /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg('-syslib',$1);
802 print STDERR "$Pgm: no such system library (-syslib): $syslib\n",
803 $Status++ unless $syslib =~ /^(hbc|ghc|posix|contrib)$/;
805 unshift(@SysImport_dir,
807 ? "$InstSysLibDir/$syslib/imports"
808 : "$TopPwd/hslibs/$syslib/src");
810 unshift(@SysLibrary, ('-lHS' . $syslib ));
814 #=======================================================================
815 # various flags that we can harmlessly send to one program or another
816 # (we will later "reclaim" some of the compiler ones now sent to gcc)
817 #=======================================================================
819 #---------- this driver itself (ghc) -----------------------------------
820 # these change what executable is run for each phase:
821 /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; };
822 /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; };
823 /^-pgmC(.*)$/ && do { $HsC = $1; next arg; };
824 /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat
825 /^-pgma(.*)$/ && do { $As = $1; next arg; };
826 /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; };
828 #---------- the get-anything-through opts (all pgms) -------------------
829 # these allow arbitrary option-strings to go to any phase:
830 /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; };
831 /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; };
832 /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; };
833 /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; };
834 /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; };
835 /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; };
836 /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; };
838 #---------- Haskell C pre-processor (hscpp) ----------------------------
839 /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg('-D',$1)."'"); next arg; };
840 /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg('-U',$1)."'"); next arg; };
842 /^-genSPECS/ && do { $Cpp_flag_set = 1;
846 #---------- post-Haskell "assembler"------------------------------------
847 /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; };
848 /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; };
850 #---------- Haskell compiler (hsc) -------------------------------------
852 /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; };
853 /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; };
855 /^-fhaskell-1\.3$/ && do { next arg; }; # a no-op right now
857 /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; };
859 /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; };
861 # ToDo: rename to -fcompiling-ghc-internals=<module>
862 /^-fcompiling-ghc-internals(.*)/ && do { local($m) = &grab_arg_arg('-fcompiling-ghc-internals',$1);
863 push(@HsC_flags, "-fcompiling-ghc-internals=$m");
866 /^-fusing-ghc-internals$/ && do { $UsingGhcInternals = 1; next arg; };
868 /^-user-prelude-force/ && do { # ignore if not -user-prelude
871 /^-split-objs(.*)/ && do {
872 local($sname) = &grab_arg_arg('-split-objs', $1);
873 $sname =~ s/ //g; # no spaces
875 if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|sparc)-/ ) {
877 print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n";
882 push(@HsC_flags, "-fglobalise-toplev-names=$sname");
883 push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS');
885 require('ghc-split.prl')
886 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n");
890 /^-f(hide-builtin-names|min-builtin-names)$/
891 && do { push(@HsC_flags, $_);
892 # push(@HsC_flags, '-fno-implicit-prelude'); # don't read Prelude.hi
893 # push(@HsP_flags, '-N'); # allow foo# names
896 && do { push(@HsC_flags, $_);
897 push(@HsP_flags, '-N');
899 # push(@HsC_flags, '-fshow-import-specs');
901 # if ( ! $(INSTALLING) ) {
902 # unshift(@SysImport_dir,
903 # "$TopPwd/$(CURRENT_DIR)/$(GHC_LIBSRC)/glaExts");
907 /^-fspeciali[sz]e-unboxed$/
908 && do { $Oopt_DoSpecialise = '-fspecialise';
909 $Oopt_SpecialiseUnboxed = '-fspecialise-unboxed';
912 && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; };
913 /^-fno-speciali[sz]e$/
914 && do { $Oopt_DoSpecialise = ''; next arg; };
917 # Now the foldr/build options, which are *on* by default (for -O).
920 && do { $Oopt_FoldrBuild = 1;
921 $Oopt_FB_Support = '-fdo-arity-expand';
926 && do { $Oopt_FoldrBuild = 0;
927 $Oopt_FB_Support = '';
930 /^-fno-foldr-build-rule$/
931 && do { $Oopt_FoldrBuild = 0;
935 && do { $Oopt_FB_Support = '';
938 /^-fno-snapback-to-append$/
939 && do { $Oopt_FoldrBuildInline .= ' -fdo-not-fold-back-append ';
940 #print "No Foldback of append\n";
943 # /^-ffoldr-build-ww$/
944 # && do { $Oopt_FoldrBuildWW = 1; next arg; };
949 /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen
950 /^-fvia-C$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler
954 /^(-fsimpl-uf-use-threshold)(.*)$/
955 && do { $Oopt_UnfoldingUseThreshold = $1 . &grab_arg_arg($1, $2);
958 /^(-fmax-simplifier-iterations)(.*)$/
959 && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg($1, $2);
962 /^-fno-pedantic-bottoms$/
963 && do { $Oopt_PedanticBottoms = ''; next arg; };
965 /^-fdo-monad-eta-expansion$/
966 && do { $Oopt_MonadEtaExpansion = $_; next arg; };
968 /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10)
969 && do { push(@HsC_flags, $_); next arg; };
971 /^(-freturn-in-regs-threshold)(.*)$/
972 && do { local($what) = $1;
973 local($num) = &grab_arg_arg($what, $2);
974 if ($num < 2 || $num > 8) {
975 die "Bad experimental flag: $_\n";
977 $HscOut = '-C='; # force using C compiler
978 push(@HsC_flags, "$what$num");
979 push(@CcRegd_flags, "-D__STG_REGS_AVAIL__=$num");
985 /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1");
986 &squashHscFlag("-f$1");
989 /^-f/ && do { push(@HsC_flags, $_); next arg; };
993 /^-mlong-calls$/ && do { # for GCC for HP-PA boxes
994 unshift(@CcBoth_flags, ( $_ ));
997 /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/
998 && do { # for GCC for SPARCs
999 unshift(@CcBoth_flags, ( $_ ));
1002 /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise
1003 $StolenX86Regs = $1;
1006 #*************** ... and lots of debugging ones (form: -d* )
1008 # -d(no-)core-lint is done this way so it is turn-off-able.
1009 /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; };
1010 /^-dno-core-lint/ && do { $CoreLint = ''; next arg; };
1012 /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; };
1013 /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; };
1014 /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; };
1015 /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; };
1016 /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; };
1017 /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; };
1019 #*************** ... and now all these -R* ones for its runtime system...
1021 /^-Rscale-sizes?(.*)/ && do {
1022 $Scale_sizes_by = &grab_arg_arg('-Rscale-sizes', $1);
1025 /^(-H|-Rmax-heapsize)(.*)/ && do {
1026 local($heap_size) = &grab_arg_arg($1, $2);
1027 if ($heap_size =~ /(\d+)[Kk]$/) {
1028 $heap_size = $1 * 1000;
1029 } elsif ($heap_size =~ /(\d+)[Mm]$/) {
1030 $heap_size = $1 * 1000 * 1000;
1031 } elsif ($heap_size =~ /(\d+)[Gg]$/) {
1032 $heap_size = $1 * 1000 * 1000 * 1000;
1034 if ($heap_size <= 0) {
1035 print STDERR "$Pgm: resetting heap-size to zero!!!\n";
1036 $Specific_heap_size = 0;
1038 # if several heap sizes given, take the largest...
1039 if ($heap_size >= $Specific_heap_size) {
1040 $Specific_heap_size = $heap_size;
1042 print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n";
1046 /^-(K|Rmax-(stk|stack)size)(.*)/ && do {
1047 local($stk_size) = &grab_arg_arg('-Rmax-stksize', $3);
1048 if ($stk_size =~ /(\d+)[Kk]$/) {
1049 $stk_size = $1 * 1000;
1050 } elsif ($stk_size =~ /(\d+)[Mm]$/) {
1051 $stk_size = $1 * 1000 * 1000;
1052 } elsif ($stk_size =~ /(\d+)[Gg]$/) {
1053 $stk_size = $1 * 1000 * 1000 * 1000;
1055 if ($stk_size <= 0) {
1056 print STDERR "$Pgm: resetting stack-size to zero!!!\n";
1057 $Specific_stk_size = 0;
1059 # if several stack sizes given, take the largest...
1060 if ($stk_size >= $Specific_stk_size) {
1061 $Specific_stk_size = $stk_size;
1063 print STDERR "$Pgm: ignoring stack-size-setting option (-Rmax-stksize $stk_size)...not the largest seen\n";
1067 /^-Rgc-stats$/ && do { $CollectingGCstats++;
1068 # the two RTSs do this diff ways; we will try to compensate
1071 /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; };
1073 #---------- C high-level assembler (gcc) -------------------------------
1074 /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; };
1076 # -dgcc-lint is a useful way of making GCC very fussy.
1077 # From alan@spri.levels.unisa.edu.au (Alan Modra).
1078 /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; };
1079 # An alternate set, from mark@sgcs.com (Mark W. Snitily)
1080 # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow
1082 # inject "#include <wurble>" into the compiler's C output!
1084 /^-#include(.*)/ && do {
1085 local($to_include) = &grab_arg_arg('-#include', $1);
1086 push(@CcInjects, "#include $to_include\n");
1089 #---------- Linker (gcc, really) ---------------------------------------
1091 /^-static$/ && do { push(@Ld_flags, $_); next arg; };
1093 #---------- mixed cc and linker magic ----------------------------------
1094 # this optimisation stuff is finally sorted out later on...
1096 /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; };
1098 /^-O[1-2]?$/ && do {
1099 # print STDERR "$Pgm: NOTE: this version of GHC doesn't support -O or -O2\n";
1100 local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em
1101 $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel;
1103 $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler
1106 /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to <no opt>
1108 /^-Ofile(.*)/ && do {
1110 local($ofile) = &grab_arg_arg('-Ofile', $1);
1111 @HsC_minusO3_flags = ();
1113 open(OFILE, "< $ofile") || die "Can't open $ofile!\n";
1116 s/\#.*//; # death to comments
1117 s/[ \t]+//g; # death to whitespace
1118 next if /^$/; # ditto, blank lines
1119 s/([()*{}])/\\$1/g; # protect shell metacharacters
1121 push(@CcBoth_flags, $1);
1123 push(@HsC_minusO3_flags, $_);
1129 /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging"
1130 # in the consistency info
1134 #---------- linking .a file --------------------------------------------
1136 /^-Main(.*)/ && do {
1137 # specifies main or mainPrimIO to be linked
1141 #---------- catch unrecognized flags -----------------------------------
1144 print STDERR "$Pgm: unrecognised option: $_\n";
1148 #---------- anything else is considered an input file ------------------
1149 # (well, .o and .a files are immediately queued up as linker fodder..)
1151 push(@Link_file, $_);
1153 push(@Input_file, $_);
1156 # input files must exist:
1158 print STDERR "$Pgm: input file doesn't exist: $_\n";
1163 # if there are several input files,
1164 # we don't allow \tr{-o <file>} or \tr{-ohi <file>} options...
1165 # (except if linking, of course)
1167 if ($#Input_file > 0 && ( ! $Do_lnkr )) {
1168 if ( ($Specific_output_file ne '' && $Specific_output_file ne '-')
1169 || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) {
1170 print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n";
1171 print STDERR "\tPerhaps the -odir option will do what you want.\n";
1176 # check for various pathological -o and -odir combinations...
1177 if ($Specific_output_dir ne '' && $Specific_output_file ne '') {
1178 if ($Specific_output_file eq '-') {
1179 print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n";
1181 } else { # amalgamate...
1182 $Specific_output_file = "$Specific_output_dir/$Specific_output_file";
1183 # ToDo: check we haven't got a junk name now...
1184 $Specific_output_dir = ''; # reset
1188 # PROFILING stuff after argv mangling:
1190 # warn about any scc exprs found (in case scc used as identifier)
1191 push(@HsP_flags, '-W');
1193 # add -auto sccs even if not profiling !
1194 push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto;
1197 push(@HsC_flags, $PROFauto) if $PROFauto;
1198 push(@HsC_flags, $PROFcaf) if $PROFcaf;
1199 #push(@HsC_flags, $PROFdict) if $PROFdict;
1201 $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling';
1203 push(@HsP_flags, (($PROFignore_scc) ? $PROFignore_scc : '-S'));
1205 if ( $SplitObjFiles ) {
1206 # can't split with cost centres -- would need global and externs
1207 print STDERR "$Pgm: WARNING: splitting objects when profiling will *BREAK* if any _scc_s are present!\n";
1208 # (but it's fine if there aren't any _scc_s around...)
1209 # $SplitObjFiles = 0; # unset
1210 #not an error: for now: $Status++;
1214 # crash and burn if there were errors
1215 if ( $Status > 0 ) {
1216 print STDERR $ShortUsage;
1221 %************************************************************************
1223 \section[Driver-post-argv-mangling]{Setup after reading options}
1225 %************************************************************************
1227 %************************************************************************
1229 \subsection{Set up for optimisation level (\tr{-O} or whatever)}
1231 %************************************************************************
1233 We come now to the default ``wads of options'' that are turned on by
1234 \tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation),
1235 \tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is
1238 The user can also specify his/her own list of options in a file; in
1239 that case, the work is already done (see stuff about @minusO3@,
1242 GHC allows very precise control of what happens during a compilation.
1243 Core-to-Core and STG-to-STG passes can be run in any order, as many
1244 times as you like. Individual transformations can be turned on or
1247 Sadly, however, there are some interdependencies \& Things You Must
1248 Not Do. Here is the list.
1250 CORE-TO-CORE PASSES:
1252 \item[\tr{-fspecialise}:]
1253 The specialiser must have dependency-analysed input; but if you run
1254 the simplifier to do this, you must not let it toss away unused
1255 bindings! (The typechecker conveys some specialisation info via
1256 ``unused'' bindings...)
1258 \item[\tr{-ffloat-inwards}:]
1259 Floating inwards should be done before strictness analysis, because
1260 the latter will give better results.
1262 \item[\tr{-fstatic-args}:]
1263 The static-arguments-transformation pass {\em must} have the
1264 simplifier run right after it.
1266 \item[\tr{-fcalc-inlinings[12]}:]
1267 Not required, but there may be slight gains by re-simplifying after
1268 this is done. (You could then \tr{-fcalc-inlinings} again, just for
1271 \item[\tr{-ffull-laziness}:]
1272 The (outwards-)let-floater should be the {\em last} Core-to-Core pass
1273 that's run. (Um, well, howzabout the simplifier just once more...)
1278 \item[\tr{-fupdate-analysis}:]
1279 It really really wants to be the last STG-to-STG pass that is run.
1287 # '-falways-float-lets-from-lets', # no idea why this was here (WDP 95/09)
1288 '-ffloat-lets-exposing-whnf',
1289 '-ffloat-primops-ok',
1291 # '-fdo-lambda-eta-expansion', # too complicated
1293 # '-flet-to-case', # no strictness analysis, so...
1294 $Oopt_PedanticBottoms,
1295 # $Oopt_MonadEtaExpansion, # no thanks
1296 '-fsimpl-uf-use-threshold0',
1297 '-fessential-unfoldings-only',
1298 # $Oopt_UnfoldingUseThreshold, # no thanks
1299 $Oopt_MaxSimplifierIterations,
1302 # '-ffull-laziness', # removed 95/04 WDP following Andr\'e's lead
1303 '-fuse-get-mentioned-vars', # for the renamer
1305 $Oopt_FinalStgProfilingMassage
1308 @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits)
1310 # initial simplify: mk specialiser happy: minimum effort please
1314 '-fkeep-spec-pragma-ids', # required before specialisation
1315 '-fsimpl-uf-use-threshold0',
1316 '-fessential-unfoldings-only',
1317 '-fmax-simplifier-iterations1',
1318 $Oopt_PedanticBottoms,
1321 ($Oopt_DoSpecialise) ? (
1322 '-fspecialise-overloaded',
1323 $Oopt_SpecialiseUnboxed,
1327 '-fsimplify', # need dependency anal after specialiser ...
1328 '\(', # need tossing before calc-inlinings ...
1330 '-ffloat-lets-exposing-whnf',
1331 '-ffloat-primops-ok',
1334 '-fdo-eta-reduction',
1335 '-fdo-lambda-eta-expansion',
1337 $Oopt_PedanticBottoms,
1338 $Oopt_MonadEtaExpansion,
1339 $Oopt_UnfoldingUseThreshold,
1340 $Oopt_MaxSimplifierIterations,
1343 '-fcalc-inlinings1',
1345 # ($Oopt_FoldrBuildWW) ? (
1346 # '-ffoldr-build-ww-anal',
1347 # '-ffoldr-build-worker-wrapper',
1351 # '-ffloat-lets-exposing-whnf',
1352 # '-ffloat-primops-ok',
1355 # '-fdo-eta-reduction',
1356 # '-fdo-lambda-eta-expansion',
1358 # $Oopt_PedanticBottoms,
1359 # $Oopt_MonadEtaExpansion,
1360 # $Oopt_UnfoldingUseThreshold,
1361 # $Oopt_MaxSimplifierIterations,
1365 # this pass-ordering sequence was agreed by Simon and Andr\'e
1366 # (WDP 94/07, 94/11).
1369 ($Oopt_FoldrBuild) ? (
1370 '-ffoldr-build-on', # desugar list comprehensions for foldr/build
1374 '-fignore-inline-pragma', # **** NB!
1375 '-fdo-foldr-build', # NB
1377 '-ffloat-lets-exposing-whnf',
1378 '-ffloat-primops-ok',
1381 '-fdo-eta-reduction',
1382 '-fdo-lambda-eta-expansion',
1384 $Oopt_PedanticBottoms,
1385 $Oopt_MonadEtaExpansion,
1386 $Oopt_UnfoldingUseThreshold,
1387 $Oopt_MaxSimplifierIterations,
1396 '-ffloat-lets-exposing-whnf',
1397 '-ffloat-primops-ok',
1400 '-fdo-eta-reduction',
1401 '-fdo-lambda-eta-expansion',
1403 ($Oopt_FoldrBuildInline),
1404 # you need to inline foldr and build
1405 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
1406 # but do reductions if you see them!
1407 $Oopt_PedanticBottoms,
1408 $Oopt_MonadEtaExpansion,
1409 $Oopt_UnfoldingUseThreshold,
1410 $Oopt_MaxSimplifierIterations,
1418 '-ffloat-lets-exposing-whnf',
1419 '-ffloat-primops-ok',
1422 '-fdo-eta-reduction',
1423 '-fdo-lambda-eta-expansion',
1425 '-flet-to-case', # Aha! Only done after strictness analysis
1426 $Oopt_PedanticBottoms,
1427 $Oopt_MonadEtaExpansion,
1428 $Oopt_UnfoldingUseThreshold,
1429 $Oopt_MaxSimplifierIterations,
1434 # Case-liberation for -O2. This should be after
1435 # strictness analysis and the simplification which follows it.
1437 # ( ($OptLevel != 2)
1439 # : "-fliberate-case -fsimplify \\( $Oopt_FB_Support -ffloat-lets-exposing-whnf -ffloat-primops-ok -fcase-of-case -fdo-case-elim -fdo-eta-reduction -fdo-lambda-eta-expansion -freuse-con -flet-to-case $Oopt_PedanticBottoms $Oopt_MonadEtaExpansion $Oopt_UnfoldingUseThreshold $Oopt_MaxSimplifierIterations \\)" ),
1441 # Final clean-up simplification:
1446 '-ffloat-lets-exposing-whnf',
1447 '-ffloat-primops-ok',
1450 '-fdo-eta-reduction',
1451 '-fdo-lambda-eta-expansion',
1454 '-fignore-inline-pragma', # **** NB!
1455 $Oopt_FoldrBuildInline,
1456 ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (),
1457 # but still do reductions if you see them!
1458 $Oopt_PedanticBottoms,
1459 $Oopt_MonadEtaExpansion,
1460 $Oopt_UnfoldingUseThreshold,
1461 $Oopt_MaxSimplifierIterations,
1466 '-fcalc-inlinings2',
1469 '-fupdate-analysis',
1471 $Oopt_FinalStgProfilingMassage,
1477 # SPECIAL FLAGS for -O2
1478 ($OptLevel == 2) ? (
1484 Sort out what we're going to do about optimising. First, the @hsc@
1485 flags and regular @cc@ flags to worry about:
1487 if ( $OptLevel <= 0 ) {
1489 # for this level, we tell the parser -fignore-interface-pragmas
1490 push(@HsC_flags, '-fignore-interface-pragmas');
1491 # and tell the compiler not to produce them
1492 push(@HsC_flags, '-fomit-interface-pragmas');
1494 &add_Hsc_flags( @HsC_minusNoO_flags );
1495 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional!
1497 } elsif ( $OptLevel == 1 || $OptLevel == 2 ) {
1499 &add_Hsc_flags( @HsC_minusO_flags );
1500 push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional!
1501 # -O? to GCC is not optional! -O2 probably isn't worth it generally,
1502 # but it *is* useful in compiling the garbage collectors (so said
1503 # Patrick many moons ago...).
1505 } else { # -Ofile, then...
1507 &add_Hsc_flags( @HsC_minusO3_flags );
1508 push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated...
1512 %************************************************************************
1514 \subsection{Check for consistency, etc.}
1516 %************************************************************************
1518 Sort out @$BuildTag@, @$PROFing@, @$CONCURing@, @$PARing@,
1519 @$GRANing@, @$TICKYing@:
1521 if ( $BuildTag ne '' ) {
1522 local($b) = $BuildDescr{$BuildTag};
1523 if ($CONCURing eq 'c') { print STDERR "$Pgm: Can't mix $b with -concurrent.\n"; exit 1; }
1524 if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; }
1525 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; }
1526 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; }
1528 # ok to have a user-way profiling build
1529 # eval the profiling opts ... but leave user-way BuildTag
1530 if ($PROFing eq 'p') { eval($EvaldSetupOpts{'_p'}); }
1532 } elsif ( $PROFing eq 'p' ) {
1533 if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; }
1534 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; }
1535 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; }
1536 $BuildTag = ($CONCURing eq 'c') ? '_mr' : '_p' ; # possibly "profiled concurrent"...
1538 } elsif ( $CONCURing eq 'c' ) {
1539 if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix -concurrent with -parallel.\n"; exit 1; }
1540 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -concurrent with -gransim.\n"; exit 1; }
1541 $BuildTag = ($TICKYing eq 't') ? '_mt' : '_mc' ; # possibly "ticky concurrent"...
1542 # "profiled concurrent" already acct'd for...
1544 } elsif ( $PARing eq 'p' ) {
1545 if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; }
1546 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; }
1549 if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) {
1550 print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n";
1554 } elsif ( $GRANing eq 'g' ) {
1555 if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; }
1558 } elsif ( $TICKYing eq 't' ) {
1564 if ( $BuildTag ne '' ) { # something other than normal sequential...
1566 push(@HsP_flags, "-syshisuffix=$BuildTag.hi"); # use appropriate Prelude .hi files
1568 $HscOut = '-C='; # must go via C
1570 eval($EvaldSetupOpts{$BuildTag});
1574 Decide what the consistency-checking options are in force for this run:
1576 $HsC_consist_options = "${BuildTag},${DEBUGging}";
1577 $Cc_consist_options = "${BuildTag},${DEBUGging}";
1580 %************************************************************************
1582 \subsection{Add on machine-specific C-compiler flags}
1584 %************************************************************************
1586 Shove on magical machine-specific options. We use \tr{unshift} to
1587 stick them on the {\em front} of the arrays, so that ``later''
1588 user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}).
1590 Note: a few ``always apply'' flags were set at the very beginning.
1593 if ($TargetPlatform =~ /^alpha-/) {
1594 # we know how to *mangle* asm for alpha
1595 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1596 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1597 unshift(@CcBoth_flags, ('-static'));
1599 } elsif ($TargetPlatform =~ /^hppa/) {
1600 # we know how to *mangle* asm for hppa
1601 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1602 unshift(@CcBoth_flags, ('-static'));
1603 # We don't put in '-mlong-calls', because it's only
1604 # needed for very big modules (sigh), and we don't want
1605 # to hobble ourselves further on all the other modules
1607 unshift(@CcBoth_flags, ('-D_HPUX_SOURCE'));
1608 # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi!
1609 # (very nice, but too bad the HP /usr/include files don't agree.)
1611 } elsif ($TargetPlatform =~ /^i386-/) {
1612 # we know how to *mangle* asm for X86
1613 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1614 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1616 # -fno-defer-pop : basically the same game as for m68k
1618 # -fomit-frame-pointer : *must* ; because we're stealing
1619 # the fp (%ebp) for our register maps. *All* register
1620 # maps (in MachRegs.lh) must steal it.
1622 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1623 unshift(@CcRegd_flags, '-fomit-frame-pointer');
1624 unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs");
1626 } elsif ($TargetPlatform =~ /^m68k-/) {
1627 # we know how to *mangle* asm for m68k
1628 unshift (@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1629 unshift (@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1631 # -fno-defer-pop : for the .hc files, we want all the pushing/
1632 # popping of args to routines to be explicit; if we let things
1633 # be deferred 'til after an STGJUMP, imminent death is certain!
1635 # -fomit-frame-pointer : *don't*
1636 # It's better to have a6 completely tied up being a frame pointer
1637 # rather than let GCC pick random things to do with it.
1638 # (If we want to steal a6, then we would try to do things
1639 # as on iX86, where we *do* steal the frame pointer [%ebp].)
1641 unshift(@CcRegd_flags_hc, '-fno-defer-pop');
1642 unshift(@CcRegd_flags, '-fno-omit-frame-pointer');
1643 # maybe gives reg alloc a better time
1644 # also: -fno-defer-pop is not sufficiently well-behaved without it
1646 } elsif ($TargetPlatform =~ /^mips-/) {
1647 # we (hope to) know how to *mangle* asm for MIPSen
1648 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1649 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1650 unshift(@CcBoth_flags, ('-static'));
1652 } elsif ($TargetPlatform =~ /^powerpc-/) {
1653 # we know how to *mangle* asm for PowerPC
1654 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1655 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1657 } elsif ($TargetPlatform =~ /^sparc-/) {
1658 # we know how to *mangle* asm for SPARC
1659 unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__'));
1660 unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK;
1665 Same unshifting magic, but for special linker flags.
1667 Should really be whether or not we prepend underscores to global symbols,
1668 not an architecture test. (JSM)
1671 $Under = ( $TargetPlatform =~ /^alpha-/
1672 || $TargetPlatform =~ /^hppa/
1673 || $TargetPlatform =~ /^mips-sgi-irix/
1674 || $TargetPlatform =~ /^powerpc-/
1675 || $TargetPlatform =~ /-solaris/
1676 || $TargetPlatform =~ /-linux$/
1682 '-u', "${Under}Main_" . $Ld_main . '_closure',
1684 '-u', "${Under}GHCbase_unsafePerformPrimIO_fast1",
1685 '-u', "${Under}Prelude_Z91Z93_closure", # i.e., []
1686 '-u', "${Under}Prelude_IZh_static_info",
1687 '-u', "${Under}Prelude_False_inregs_info",
1688 '-u', "${Under}Prelude_True_inregs_info",
1689 '-u', "${Under}Prelude_CZh_static_info",
1690 '-u', "${Under}DEBUG_REGS"))
1691 ; # just for fun, now...
1694 %************************************************************************
1696 \subsection{Set up include paths and system-library enslurpment}
1698 %************************************************************************
1700 Now that we know what garbage-collector, etc., are required, we can
1701 finalise our list of libraries to slurp through, and generally Get
1705 # default includes must be added AFTER option processing
1706 if ( ! $(INSTALLING) ) {
1707 push (@Include_dir, "$TopPwd/$(CURRENT_DIR)/$(GHC_INCLUDESRC)");
1709 push (@Include_dir, "$InstLibDirGhc/includes");
1710 push (@Include_dir, "$InstDataDirGhc/includes");
1716 foreach $f (@SysLibrary) {
1717 $f .= $BuildTag if $f =~ /^-lHS/;
1720 # fiddle the TopClosure file name...
1721 $TopClosureFile =~ s/XXXX//;
1723 # Push library HSrts, plus boring clib bit
1724 push(@SysLibrary, "-lHSrts${BuildTag}");
1725 push(@SysLibrary, '-lHSclib');
1727 # Push the pvm libraries
1728 if ($BuildTag eq '_mp') {
1729 $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}";
1730 push(@SysLibrary, "-L$pvmlib", '-lpvm3', '-lgpvm3');
1731 if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) {
1732 push(@SysLibrary, '-lthread', '-lsocket', '-lnsl');
1733 } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) {
1734 push(@SysLibrary, '-lsocket', '-lnsl');
1738 # Push the GNU multi-precision arith lib; and the math library
1739 push(@SysLibrary, '-lgmp');
1740 push(@SysLibrary, '-lm');
1743 %************************************************************************
1745 \subsection{Check that this system was built to do what we are asking}
1747 %************************************************************************
1749 Before continuing we check that the appropriate build is available.
1752 die "$Pgm: no BuildAvail?? $BuildTag\n" if ! $BuildAvail{$BuildTag}; # sanity
1754 if ( $BuildAvail{$BuildTag} =~ /^-build-.*-not-defined$/ ) {
1755 print STDERR "$Pgm: a `", $BuildDescr{$BuildTag},
1756 "' \"build\" is not available with your GHC setup.\n";
1757 print STDERR "(It was not configured for it at your site.)\n";
1758 print STDERR $ShortUsage;
1763 %************************************************************************
1765 \subsection{Final miscellaneous setup bits before we start going}
1767 %************************************************************************
1769 Record largest specific heapsize, if any.
1771 $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by;
1772 push(@HsC_rts_flags, '-H'.$Specific_heap_size);
1773 $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by;
1774 push(@HsC_rts_flags, "-K$Specific_stk_size");
1776 # hack to avoid running hscpp
1777 $HsCpp = $Cat if ! $Cpp_flag_set;
1780 If no input or link files seen, then we let 'em feed in stdin; this is
1781 mainly for debugging.
1783 if ($#Input_file < 0 && $#Link_file < 0) {
1784 @Input_file = ( '-' );
1786 open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n");
1787 print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n";
1788 while (<>) { print INF $_; }
1789 close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n");
1793 Tell the world who we are, if they asked.
1795 print STDERR "$(PROJECTNAME), version $(PROJECTVERSION) $(PROJECTPATCHLEVEL)\n"
1799 %************************************************************************
1801 \section[Driver-main-loop]{Main loop: Process input files, and link if required}
1803 %************************************************************************
1805 Process the input files; don't continue with linking if there are
1806 problems (global variable @$Status@ non-zero).
1808 foreach $ifile (@Input_file) {
1809 &ProcessInputFile($ifile);
1812 if ( $Status > 0 ) { # don't link if there were errors...
1813 print STDERR $ShortUsage;
1819 Link if appropriate.
1822 local($libdirs) = '';
1824 # glue them together:
1825 push(@UserLibrary_dir, @SysLibrary_dir);
1827 $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0;
1829 # for a linker, use an explicitly given one, or the going C compiler ...
1830 local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd;
1832 local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : '';
1833 @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out';
1835 local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $TopClosureFile $libdirs @UserLibrary @SysLibrary";
1836 &run_something($to_do, 'Linker');
1838 # finally, check the consistency info in the binary
1839 local($executable) = $Files_to_tidy[0];
1840 @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent
1843 # dynamically load consistency-chking code; then do it.
1844 require('ghc-consist.prl')
1845 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n");
1847 &chk_consistency_info ( $executable );
1850 # if PVM parallel stuff, we do truly weird things.
1851 # Essentially: (1) move the executable over to where PVM expects
1852 # to find it. (2) create a script in place of the executable
1853 # which will cause the program to be run, via SysMan.
1854 if ( $PARing eq 'p' ) {
1855 local($pvm_executable) = $executable;
1856 local($pvm_executable_base);
1858 if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute
1859 local($pwd) = `pwd`;
1861 $pwd =~ s/^\/tmp_mnt//;
1862 $pvm_executable = "$pwd/$pvm_executable";
1865 $pvm_executable =~ s|/|=|g; # make /s into =s
1866 $pvm_executable_base = $pvm_executable;
1868 $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'}
1869 . "/$pvm_executable";
1871 &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land');
1873 # OK, now create the magic script for "$executable"
1874 open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n");
1875 print EXEC <<EOSCRIPT1;
1877 # =!=!=!=!=!=!=!=!=!=!=!
1878 # This script is automatically generated: DO NOT EDIT!!!
1879 # Generated by Glasgow Haskell, version $(PROJECTVERSION) $(PROJECTPATCHLEVEL)
1881 \$pvm_executable = '$pvm_executable';
1882 \$pvm_executable_base = '$pvm_executable_base';
1883 \$SysMan = '$SysMan';
1886 print EXEC <<\EOSCRIPT2;
1887 # first, some magical shortcuts to run "commands" on the binary
1889 if ($#ARGV == 1 && $ARGV[0] eq '+RTS' && $ARGV[1] =~ /^--((size|file|strip|rm|nm).*)/ ) {
1891 system("$cmd $pvm_executable");
1895 # OK, really run it; process the args first
1896 $ENV{'PE'} = $pvm_executable_base;
1898 $nprocessors = 2; # the default
1902 # ToDo: handle --RTS
1903 args: while ($a = shift(@ARGV)) {
1904 if ( $a eq '+RTS' ) {
1906 } elsif ( $a eq '-RTS' ) {
1909 if ( $a eq '-d' && $in_RTS_args ) {
1911 } elsif ( $a =~ /^-N(\d+)/ && $in_RTS_args ) {
1914 push(@nonPVM_args, $a);
1918 exec "$SysMan $debug $pvm_executable $nprocessors @nonPVM_args";
1919 print STDERR "Exec failed!!!: $SysMan $debug $nprocessors @nonPVM_args\n";
1922 close(EXEC) || die "Failed closing $executable\n";
1923 chmod 0755, $executable;
1927 # that... that's all, folks!
1929 exit $Status; # will still be 0 if all went well
1932 %************************************************************************
1934 \section[Driver-do-one-file]{How to process a single input file}
1936 %************************************************************************
1939 sub ProcessInputFile {
1940 local($ifile) = @_; # input file name
1941 local($ifile_root); # root of or basename of input file
1942 local($ofile_target); # ultimate output file we hope to produce
1943 # from input file (need to know for recomp
1944 # checking purposes)
1945 local($hifile_target);# ditto (but .hi file)
1948 Handle the weirdity of input from stdin.
1950 if ($ifile ne '-') {
1951 ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//;
1952 $ofile_target = # may be reset later...
1953 ($Specific_output_file ne '' && ! $Do_lnkr)
1954 ? $Specific_output_file
1955 : &odir_ify($ifile_root, 'o');
1956 $hifile_target= ($Specific_hi_file ne '')
1958 : "$ifile_root.$HiSuffix"; # ToDo: odirify?
1959 # NB: may change if $ifile_root isn't module name (??)
1961 $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input
1962 $ifile_root = '_stdin';
1963 $ofile_target = '_stdout'; # gratuitous?
1964 $hifile_target= '_stdout'; # ditto?
1968 We need to decide what phases of the compilation system we will run
1969 over this file. The defaults are the ones established when processing
1970 flags. (That established what the last phase run for all files is.)
1972 We do the pre-recompilation-checker phases here; the rest later.
1976 Look at the suffix and decide what initial phases of compilation may
1977 be dropped off for this file. Also the rather boring business of
1978 which files are coming-in/going-out.
1980 Again, we'll do the post-recompilation-checker parts of this later.
1982 local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0;
1983 local($do_hscpp) = 1; # but "hscpp" might really be "cat"
1985 local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly
1987 : ( ($HscOut eq '-C=') ? 1 : 0 );
1988 local($do_as) = $Do_as;
1990 # names of the files to stuff between phases
1991 # defaults are temporaries
1992 local($in_lit2pgm) = $ifile;
1993 local($lit2pgm_hscpp) = "$Tmp_prefix.lpp";
1994 local($hscpp_hsc) = "$Tmp_prefix.cpp";
1995 local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ;
1996 local($hsc_hi) = "$Tmp_prefix.hi";
1997 local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C
1998 local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code
1999 local($as_out) = $ofile_target;
2001 local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now
2003 if ($ifile =~ /\.lhs$/) {
2004 ; # nothing to change
2005 } elsif ($ifile =~ /\.hs$/) {
2007 $lit2pgm_hscpp = $ifile;
2008 } elsif ($ifile =~ /\.hc$/) {
2009 $do_lit2pgm = 0; $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
2011 } elsif ($ifile =~ /\.c$/) {
2012 $do_lit2pgm = 0; $do_hscpp = 0; $do_hsc = 0; $do_cc = 1;
2013 $hsc_out = $ifile; $is_hc_file = 0;
2014 } elsif ($ifile =~ /\.s$/) {
2015 $do_lit2pgm = 0; $do_hscpp = 0; $do_hsc = 0; $do_cc = 0;
2017 } else { # don't know what it is, but nothing to do herein...
2018 $do_lit2pgm = 0; $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0;
2021 # OK, have a bash on the first two phases:
2022 &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp)
2025 &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc)
2029 We now think about whether to run hsc/cc or not (when hsc produces .s
2030 stuff, it effectively takes the place of both phases).
2032 To get the output file name right: for each phase that we are {\em
2033 not} going to run, set its input (i.e., the output of its preceding
2034 phase) to @"$ifile_root.<suffix>"@.
2036 local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin';
2038 if (! $do_cc && ! $do_as) { # stopping after hsc
2039 $hsc_out = ($Specific_output_file ne '')
2040 ? $Specific_output_file
2041 : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's');
2043 $ofile_target = $hsc_out; # reset
2046 if (! $do_as) { # stopping after gcc (or hsc)
2047 $cc_as = ($Specific_output_file ne '')
2048 ? $Specific_output_file
2049 : &odir_ify($ifile_root, ( $Only_preprocess_C ) ? 'i' : 's');
2051 $ofile_target = $cc_as; # reset
2056 Check if hsc needs to be run at all.
2059 local($more_processing_required) = 1;
2061 if ( $Do_recomp_chkr && $do_hsc && ! $going_interactive ) {
2062 # recompilation-checking is important enough to live off by itself
2063 require('ghc-recomp.prl')
2064 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-recomp.prl!\n");
2066 $more_processing_required
2067 = &runRecompChkr($ifile, $hscpp_hsc, $ifile_root, $ofile_target, $hifile_target);
2069 print STDERR "$Pgm:recompile: NOT NEEDED!\n" if ! $more_processing_required;
2072 $do_hsc = 0, $do_cc = 0, $do_as = 0 if ! $more_processing_required;
2078 &runHsc($ifile_root, $hsc_out, $hsc_hi, $going_interactive);
2080 # interface-handling is important enough to live off by itself
2081 require('ghc-iface.prl')
2082 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n");
2084 &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive);
2086 # save a copy of the .hc file, even if we are carrying on...
2087 if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) {
2088 local($to_do) = "$Rm $ifile_root.hc; $Cp $hsc_out $ifile_root.hc";
2089 &run_something($to_do, 'Saving copy of .hc file');
2092 # save a copy of the .s file, even if we are carrying on...
2093 if ($HscOut eq '-S=' && $do_as && $Keep_s_file_too) {
2094 local($to_do) = "$Rm $ifile_root.s; $Cp $hsc_out $ifile_root.s";
2095 &run_something($to_do, 'Saving copy of .s file');
2098 # if we're going to split up object files,
2099 # we inject split markers into the .hc file now
2100 if ( $HscOut eq '-C=' && $SplitObjFiles ) {
2101 &inject_split_markers ( $hsc_out );
2106 &runGcc ($is_hc_file, $hsc_out, $cc_as_o);
2107 &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root);
2110 &split_asm_file($cc_as) if $do_as && $SplitObjFiles;
2112 &runAs($as_out, $ifile_root) if $do_as;
2115 Finally, decide what to queue up for linker input.
2117 # tentatively assume we will eventually produce linker input:
2118 push(@Link_file, &odir_ify($ifile_root, 'o'));
2120 if ($ifile !~ /\.(lhs|hs|hc|c|s)$/) {
2121 print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n"
2122 if $ifile !~ /\.a$/;
2124 # oops; we tentatively pushed the wrong thing; fix & do the right thing
2125 pop(@Link_file); push(@Link_file, $ifile);
2128 } # end of ProcessInputFile
2131 %************************************************************************
2133 \section[Driver-run-phases]{Routines to run the various phases}
2135 %************************************************************************
2139 local($in_lit2pgm, $lit2pgm_hscpp) = @_;
2141 local($to_do) = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && ".
2142 "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp";
2143 @Files_to_tidy = ( $lit2pgm_hscpp );
2145 &run_something($to_do, 'literate pre-processor');
2151 local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_;
2155 if ($HsCpp eq $Cat) {
2156 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $hscpp_hsc && ".
2157 "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc";
2158 @Files_to_tidy = ( $hscpp_hsc );
2159 &run_something($to_do, 'Ineffective C pre-processor');
2161 local($includes) = '-I' . join(' -I',@Include_dir);
2162 $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $hscpp_hsc && ".
2163 "$HsCpp $Verbose $genSPECS_flag @HsCpp_flags -D__HASKELL1__=$Haskell1Version -D__GLASGOW_HASKELL__=$GhcVersionInfo $includes $lit2pgm_hscpp >> $hscpp_hsc";
2164 @Files_to_tidy = ( $hscpp_hsc );
2165 &run_something($to_do, 'Haskellised C pre-processor');
2172 local($ifile_root, $hsc_out, $hsc_hi, $going_interactive) = @_;
2174 # prepend comma to HsP flags (so hsc can tell them apart...)
2175 foreach $a ( @HsP_flags ) { $a = ",$a" unless $a =~ /^,/; }
2177 &makeHiMap() unless $HiMapDone;
2178 push(@HsC_flags, "-himap=$HiMapFile");
2180 # here, we may produce .hc/.s and/or .hi files
2181 local($output) = '';
2182 @Files_to_tidy = ();
2184 if ( $going_interactive ) {
2185 # don't need .hi unless going to show it on stdout:
2186 $ProduceHi = '-nohifile=' if ! $HiOnStdout;
2187 $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further...
2190 # set up for producing output/.hi; note that flag twiddling
2191 # may mean that nothing will actually be produced:
2192 $output = "$ProduceHi$hsc_hi $HscOut$hsc_out";
2193 @Files_to_tidy = ( $hsc_hi, $hsc_out );
2195 # if we're compiling foo.hs, we want the GC stats to end up in foo.stat
2196 if ( $CollectingGCstats ) {
2197 push(@HsC_rts_flags, "-S$ifile_root.stat");
2198 push(@Files_to_tidy, "$ifile_root.stat");
2201 if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc'
2202 # emit nofibbish time/bytes-alloc stats to stderr;
2203 # see later .stat file post-processing
2204 push(@HsC_rts_flags, "-s$Tmp_prefix.stat");
2205 push(@Files_to_tidy, "$Tmp_prefix.stat");
2209 if ($Specific_dump_file ne '') {
2210 $dump = "2>> $Specific_dump_file";
2211 $Using_dump_file = 1;
2215 $to_do = "$HsC @HsP_flags ,$hscpp_hsc $dump @HsC_flags $CoreLint $Verbose $output +RTS @HsC_rts_flags";
2216 &run_something($to_do, 'Haskell compiler');
2218 # finish business w/ nofibbish time/bytes-alloc stats
2219 &process_ghc_timings() if $CollectGhcTimings;
2221 # if non-interactive, heave in the consistency info at the end
2222 # NB: pretty hackish (depends on how $output is set)
2223 if ( ! $going_interactive ) {
2224 if ( $HscOut eq '-C=' ) {
2225 $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out";
2227 } elsif ( $HscOut eq '-S=' ) {
2228 local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options";
2229 $consist =~ s/,/./g;
2230 $consist =~ s/\//./g;
2231 $consist =~ s/-/_/g;
2232 $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly?
2233 $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out";
2235 &run_something($to_do, 'Pin on Haskell consistency info');
2240 Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file
2241 of (module-name, pathname) pairs, one per line, separated by a space.
2249 # collect in %HiMap; write later; also used elsewhere in driver
2251 local($mod, $path, $d, $e);
2253 foreach $d ( @Import_dir ) {
2254 opendir(DIR, $d) || &tidy_up_and_die(1,"$Pgm: error when reading directory: $d\n");
2255 local(@entry) = readdir(DIR);
2256 foreach $e ( @entry ) {
2257 next unless $e =~ /([A-Z][A-Za-z0-9_]*)\.$HiSuffix$/o;
2262 if ( ! defined($HiMap{$mod}) ) {
2263 $HiMap{$mod} = $path;
2265 &already_mapped_err($mod, $HiMap{$mod}, $path);
2268 closedir(DIR); # || &tidy_up_and_die(1,"$Pgm: error when closing directory: $d\n");
2271 foreach $d ( @SysImport_dir ) {
2272 opendir(DIR, $d) || &tidy_up_and_die(1,"$Pgm: error when reading directory: $d\n");
2273 local(@entry) = readdir(DIR);
2274 foreach $e ( @entry ) {
2275 next unless $e =~ /([A-Z][A-Za-z0-9_]*)\.$SysHiSuffix$/o;
2276 next if $NoImplicitPrelude && $e =~ /Prelude\.$SysHiSuffix$/o;
2282 if ( ! defined($HiMap{$mod}) ) {
2283 $HiMap{$mod} = $path;
2284 } elsif ( $mod ne 'Main' ) { # saves useless warnings...
2285 &already_mapped_err($mod, $HiMap{$mod}, $path);
2288 closedir(DIR); # || &tidy_up_and_die(1,"$Pgm: error when closing directory: $d\n");
2291 $HiMapFile = "$Tmp_prefix.himap";
2293 open(HIMAP, "> $HiMapFile") || &tidy_up_and_die(1,"$Pgm: can't open $HiMapFile\n");
2294 foreach $d (keys %HiMap) {
2295 print HIMAP $d, ' ', $HiMap{$d}, "\n";
2297 close(HIMAP) || &tidy_up_and_die(1,"$Pgm: error when closing $HiMapFile\n");
2302 sub already_mapped_err {
2303 local($mod, $mapped_to, $path) = @_;
2305 # OK, it isn't really an error if $mapped_to and $path turn
2306 # out to be the same thing.
2307 ($m_dev,$m_ino,$m_mode,$m_nlink,$m_uid,$m_gid,$m_rdev,$m_size,
2308 $m_atime,$m_mtime,$m_ctime,$m_blksize,$m_blocks) = stat($mapped_to);
2309 ($p_dev,$p_ino,$p_mode,$p_nlink,$p_uid,$p_gid,$p_rdev,$p_size,
2310 $p_atime,$p_mtime,$p_ctime,$p_blksize,$p_blocks) = stat($path);
2312 return if $m_ino == $p_ino; # same inode number
2314 print STDERR "$Pgm: module $mod already mapped to $mapped_to (inode $m_ino)";
2315 print STDERR ";\n\tignoring: $path (inode $p_ino)\n";
2319 %************************************************************************
2321 \section[Driver-misc-utils]{Miscellaneous utilities}
2323 %************************************************************************
2325 %************************************************************************
2327 \subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set}
2329 %************************************************************************
2333 local($ofile,$def_suffix) = @_;
2335 return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" );
2339 local($orig_file, $def_suffix) = @_;
2340 if ($Specific_output_dir eq '') { # do nothing
2341 &osuf_ify($orig_file, $def_suffix);
2343 local ($orig_file_only);
2344 ($orig_file_only = $orig_file) =~ s|.*/||;
2345 &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix);
2352 local($is_hc_file, $hsc_out, $cc_as_o) = @_;
2354 local($includes) = '-I' . join(' -I', @Include_dir);
2357 local($c_flags) = "@CcBoth_flags";
2358 local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : '';
2360 # "input" files to use that are not in some weird directory;
2361 # to help C compilers grok .hc files [ToDo: de-hackify]
2362 local($cc_help) = "ghc$$.c";
2363 local($cc_help_s) = "ghc$$.s";
2366 $s_output = ($is_hc_file || $TargetPlatform =~ /^(hppa|i386)/) ? $cc_as_o : $cc_as;
2367 $c_flags .= " @CcRegd_flags";
2368 $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c";
2370 # C compiler won't like the .hc extension. So we create
2371 # a tmp .c file which #include's the needful.
2372 open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n");
2373 if ( $is_hc_file ) {
2375 #ifdef __STG_GCC_REGS__
2376 # if ! (defined(MAIN_REG_MAP) || defined(MARK_REG_MAP) || defined(SCAN_REG_MAP) || defined(SCAV_REG_MAP) || defined(FLUSH_REG_MAP))
2377 # define MAIN_REG_MAP
2380 #include "stgdefs.h"
2382 # user may have asked for #includes to be injected...
2383 print TMP @CcInjects if $#CcInjects >= 0;
2385 # heave in the consistency info
2386 print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n";
2388 # and #include the real source
2389 print TMP "#include \"$hsc_out\"\n";
2390 close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n");
2392 local($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 )";
2393 # note: __GLASGOW_HASKELL__ is pointedly *not* #defined at the C level.
2394 if ( $Only_preprocess_C ) { # HACK ALERT!
2395 $to_do =~ s/ -S\b//g;
2397 @Files_to_tidy = ( $cc_help, $cc_help_s, $s_output );
2398 $PostprocessCcOutput = 1; # hack, dear hack...
2399 &run_something($to_do, 'C compiler');
2400 $PostprocessCcOutput = 0;
2401 unlink($cc_help, $cc_help_s);
2407 local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_;
2409 if ( $is_hc_file ) {
2410 # dynamically load assembler-fiddling code, which we are about to use:
2411 require('ghc-asm.prl')
2412 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2415 print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling
2418 # post-process the assembler [.hc files only]
2419 &mangle_asm($cc_as_o, $cc_as);
2422 local($target) = 'oops';
2423 $target = '-alpha' if $TargetPlatform =~ /^alpha-/;
2424 $target = '-hppa' if $TargetPlatform =~ /^hppa/;
2425 $target = '' if $TargetPlatform =~ /^i386-/;
2426 $target = '-m68k' if $TargetPlatform =~ /^m68k-/;
2427 $target = '-mips' if $TargetPlatform =~ /^mips-/;
2428 $target = '' if $TargetPlatform =~ /^powerpc-/;
2429 $target = '-solaris' if $TargetPlatform =~ /^sparc-sun-solaris2/;
2430 $target = '-sparc' if $TargetPlatform =~ /^sparc-sun-sunos4/;
2432 if ( $target ne '' ) {
2433 require("ghc-asm$target.prl")
2434 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm$target.prl!\n");
2435 &mangle_asm($cc_as_o, "$cc_as-2"); # the OLD one!
2436 &run_something("$Cmp -s $cc_as-2 $cc_as || $Diff $cc_as-2 $cc_as 1>&2 || exit 0",
2437 "Diff'ing old and new mangled .s files"); # NB: to stderr
2440 } elsif ($TargetPlatform =~ /^hppa/) {
2441 # minor mangling of non-threaded files for hp-pa only
2442 require('ghc-asm.prl')
2443 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n");
2444 &mini_mangle_asm_hppa($cc_as_o, $cc_as);
2446 } elsif ($TargetPlatform =~ /^i386/) {
2447 # extremely-minor OFFENSIVE mangling of non-threaded just one file
2448 require('ghc-asm.prl')
2449 || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n");
2450 &mini_mangle_asm_i386($cc_as_o, $cc_as);
2453 # save a copy of the .s file, even if we are carrying on...
2454 if ($do_as && $Keep_s_file_too) {
2455 local($to_do) = "$Rm $ifile_root.s; $Cp $cc_as $ifile_root.s";
2456 &run_something($to_do, 'Saving copy of .s file');
2463 local($as_out, $ifile_root) = @_;
2465 local($asmblr) = ( $As ) ? $As : $CcRegd;
2467 if ( ! $SplitObjFiles ) {
2468 local($to_do) = "$asmblr -o $as_out -c @As_flags $cc_as";
2469 @Files_to_tidy = ( $as_out );
2470 &run_something($to_do, 'Unix assembler');
2472 } else { # more complicated split-ification...
2474 # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s
2476 for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) {
2477 local($split_out) = &odir_ify("${ifile_root}__${f}",'o');
2478 local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s";
2479 @Files_to_tidy = ( $split_out );
2481 &run_something($to_do, 'Unix assembler');
2487 %************************************************************************
2489 \subsection[Driver-run-something]{@run_something@: Run a phase}
2491 %************************************************************************
2495 local($str_to_do, $tidy_name) = @_;
2497 print STDERR "\n$tidy_name:\n\t" if $Verbose;
2498 print STDERR "$str_to_do\n" if $Verbose;
2500 if ($Using_dump_file) {
2501 open(DUMP, ">> $Specific_dump_file")
2502 || &tidy_up_and_die(1,"$Pgm: failed to open `$Specific_dump_file'\n");
2503 print DUMP "\nCompilation Dump for: $str_to_do\n\n";
2505 || &tidy_up_and_die(1,"$Pgm: failed closing `$Specific_dump_file'\n");
2508 local($return_val) = 0;
2509 system("$Time $str_to_do");
2512 if ( $PostprocessCcOutput ) { # hack, continued
2513 open(CCOUT, "< $Tmp_prefix.ccout")
2514 || &tidy_up_and_die(1,"$Pgm: failed to open `$Tmp_prefix.ccout'\n");
2516 next if /attribute directive ignored/;
2517 next if /call-clobbered/;
2518 next if /from .*COptRegs\.lh/;
2519 next if /from .*(stg|rts)defs\.h:/;
2520 next if /from ghc\d+.c:\d+:/;
2521 next if /from .*\.lc/;
2522 next if /from .*SMinternal\.l?h/;
2523 next if /ANSI C does not support \`long long\'/;
2524 next if /warning:.*was declared \`extern\' and later \`static\'/;
2525 next if /warning: assignment discards \`const\' from pointer target type/;
2526 next if /: At top level:$/;
2527 next if /: In function \`.*\':$/;
2528 next if /\`ghc_cc_ID\' defined but not used/;
2531 close(CCOUT) || &tidy_up_and_die(1,"$Pgm: failed closing `$Tmp_prefix.ccout'\n");
2534 if ($return_val != 0) {
2535 if ($Using_dump_file) {
2536 print STDERR "Compilation Errors dumped in $Specific_dump_file\n";
2539 &tidy_up_and_die($return_val, '');
2541 $Using_dump_file = 0;
2545 %************************************************************************
2547 \subsection[Driver-ghctiming]{Emit nofibbish GHC timings}
2549 %************************************************************************
2551 NB: nearly the same as in @runstdtest@ script.
2554 sub process_ghc_timings {
2555 local($StatsFile) = "$Tmp_prefix.stat";
2556 local($SysSpecificTiming) = 'ghc';
2558 open(STATS, $StatsFile) || die "Failed when opening $StatsFile\n";
2559 local($tot_live) = 0; # for calculating avg residency
2562 $tot_live += $1 if /^\s*\d+\s+\d+\s+\d+\.\d+\%\s+(\d+)\s+\d+\.\d+\%/;
2564 $BytesAlloc = $1 if /^\s*([0-9,]+) bytes allocated in the heap/;
2566 if ( /^\s*([0-9,]+) bytes maximum residency .* (\d+) sample/ ) {
2567 $MaxResidency = $1; $ResidencySamples = $2;
2570 $GCs = $1 if /^\s*([0-9,]+) garbage collections? performed/;
2572 if ( /^\s*INIT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2573 $InitTime = $1; $InitElapsed = $2;
2574 } elsif ( /^\s*MUT\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2575 $MutTime = $1; $MutElapsed = $2;
2576 } elsif ( /^\s*GC\s+time\s*(\d+\.\d\d)s\s*\(\s*(\d+\.\d\d)s elapsed\)/ ) {
2577 $GcTime = $1; $GcElapsed = $2;
2580 close(STATS) || die "Failed when closing $StatsFile\n";
2581 if ( defined($ResidencySamples) && $ResidencySamples > 0 ) {
2582 $AvgResidency = int ($tot_live / $ResidencySamples) ;
2585 # warn about what we didn't find
2586 print STDERR "Warning: BytesAlloc not found in stats file\n" unless defined($BytesAlloc);
2587 print STDERR "Warning: GCs not found in stats file\n" unless defined($GCs);
2588 print STDERR "Warning: InitTime not found in stats file\n" unless defined($InitTime);
2589 print STDERR "Warning: InitElapsed not found in stats file\n" unless defined($InitElapsed);
2590 print STDERR "Warning: MutTime not found in stats file\n" unless defined($MutTime);
2591 print STDERR "Warning: MutElapsed not found in stats file\n" unless defined($MutElapsed);
2592 print STDERR "Warning: GcTime inot found in stats file\n" unless defined($GcTime);
2593 print STDERR "Warning: GcElapsed not found in stats file\n" unless defined($GcElapsed);
2595 # things we didn't necessarily expect to find
2596 $MaxResidency = 0 unless defined($MaxResidency);
2597 $AvgResidency = 0 unless defined($AvgResidency);
2598 $ResidencySamples = 0 unless defined($ResidencySamples);
2601 $BytesAlloc =~ s/,//g;
2602 $MaxResidency =~ s/,//g;
2604 $InitTime =~ s/,//g;
2605 $InitElapsed =~ s/,//g;
2607 $MutElapsed =~ s/,//g;
2609 $GcElapsed =~ s/,//g;
2611 # print out what we found
2612 print STDERR "<<$SysSpecificTiming: ",
2613 "$BytesAlloc bytes, $GCs GCs, $AvgResidency/$MaxResidency avg/max bytes residency ($ResidencySamples samples), $InitTime INIT ($InitElapsed elapsed), $MutTime MUT ($MutElapsed elapsed), $GcTime GC ($GcElapsed elapsed)",
2614 " :$SysSpecificTiming>>\n";
2621 %************************************************************************
2623 \subsection[Driver-dying]{@tidy_up@ and @tidy_up_and_die@: Dying gracefully}
2625 %************************************************************************
2629 local($to_do) = "\n$Rm $Tmp_prefix*";
2630 if ( $Tmp_prefix !~ /^\s*$/ ) {
2631 print STDERR "$to_do\n" if $Verbose;
2636 sub tidy_up_and_die {
2637 local($return_val, $msg) = @_;
2639 # delete any files to tidy
2640 print STDERR "deleting... @Files_to_tidy\n" if $Verbose && $#Files_to_tidy >= 0;
2641 unlink @Files_to_tidy if $#Files_to_tidy >= 0;
2645 exit (($return_val == 0) ? 0 : 1);
2649 %************************************************************************
2651 \subsection[Driver-arg-with-arg]{@grab_arg_arg@: Do an argument with an argument}
2653 %************************************************************************
2655 Some command-line arguments take an argument, e.g.,
2656 \tr{-Rmax-heapsize} expects a number to follow. This can either be
2657 given a part of the same argument (\tr{-Rmax-heapsize8M}) or as the
2658 next argument (\tr{-Rmax-heapsize 8M}). We allow both cases.
2660 Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently
2661 gobble the second argument (and probably set the heapsize to something
2662 nonsensical). (ToDo?)
2665 local($option, $rest_of_arg) = @_;
2668 return($rest_of_arg);
2669 } elsif ($#ARGV >= 0) {
2670 local($temp) = $ARGV[0]; shift(@ARGV);
2673 print STDERR "$Pgm: no argument following $option option\n";
2684 #Not in HsC_antiflag ## NO!: and not already in HsC_flags
2686 foreach $f ( @HsC_antiflags ) {
2687 return(0) if $flag eq $f;
2689 # foreach $f ( @HsC_flags ) {
2690 # return(0) if $flag eq $f;
2695 sub squashHscFlag { # pretty terrible
2699 foreach $f ( @HsC_flags ) {
2700 if ($flag eq $f) { $f = ''; }
2708 foreach $f ( @flags ) {
2709 push( @HsC_flags, $f ) if &isntAntiFlag($f);
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