X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=ghc%2Fdriver%2Fghc.lprl;h=b499b8aeedcc029e2acacc00fd635716e5c8b55e;hb=4f31f78c602d3c9577ff6ab30ab66d43a8e9b7ca;hp=9b2d9f179c052ec589e9abd0c8733b0088e9dbf2;hpb=10521d8418fd3a1cf32882718b5bd28992db36fd;p=ghc-hetmet.git diff --git a/ghc/driver/ghc.lprl b/ghc/driver/ghc.lprl index 9b2d9f1..b499b8a 100644 --- a/ghc/driver/ghc.lprl +++ b/ghc/driver/ghc.lprl @@ -1,8 +1,5 @@ % -% (c) The GRASP/AQUA Project, Glasgow University, 1992-1995 -% -% *** MSUB does some substitutions here *** -% *** grep for $( *** +% (c) The GRASP/AQUA Project, Glasgow University, 1992-1997 % This is the driver script for the Glasgow Haskell compilation system. @@ -31,13 +28,13 @@ possible phases of a compilation: - hscpp: run code through the C pre-processor (if -cpp flag given) - hsc: run the Haskell compiler proper - gcc: run the C compiler (if compiling via C) - - as: run the Unix assembler - - ld: run the Unix linker + - as: run the assembler + - ld: run the linker For each input file, the phase to START with is determined by the file's suffix: - - .lhs literate Haskell: lit2pgm - - .hs illiterate Haskell: hsp + - .lhs literate Haskell: unlit + - .hs illiterate Haskell: hsc - .hc C from the Haskell compiler: gcc - .c C not from the Haskell compiler: gcc - .s assembly language: as @@ -56,7 +53,7 @@ option: Other commonly-used options are: - -O An `optimising' package of options, to produce faster code + -O An `optimising' package of compiler flags, for faster code -prof Compile for cost-centre profiling (add -auto for automagic cost-centres on top-level functions) @@ -65,18 +62,24 @@ Other commonly-used options are: -H14m Increase compiler's heap size + -M Output the Makefile rules recording the + dependencies of a list of Haskell files. + (ghc driver just calls upon the help of a + compatible mkdependHS script to do the + actual processing) + The User's Guide has more information about GHC's *many* options. Given the above, here are some TYPICAL invocations of $Pgm: # compile a Haskell module to a .o file, optimising: % $Pgm -c -O Foo.hs + # link three .o files into an executable called "test": + % $Pgm -o test Foo.o Bar.o Baz.o # compile a Haskell module to C (a .hc file), using a bigger heap: % $Pgm -C -H16m Foo.hs # compile Haskell-produced C (.hc) to assembly language: % $Pgm -S Foo.hc - # link three .o files into an executable called "test": - % $Pgm -o test Foo.o Bar.o Baz.o ------------------------------------------------------------------------ EOUSAGE \end{code} @@ -87,49 +90,55 @@ EOUSAGE %* * %************************************************************************ -Establish what executables to run for the various phases (all the -\tr{$(FOO)} make-variables are \tr{msub}bed for from the -\tr{Makefile}), what the default options are for those phases, and -other similar boring stuff. -\begin{code} -select(STDERR); $| = 1; select(STDOUT); # no STDERR buffering, please. +The driver script need to be told where to find these executables, so +in the course of building the driver `executable', make-variables holding +these are prepended to the de-litted version of this file. The variables are: -$HostPlatform = '$(HOSTPLATFORM)'; -$TargetPlatform = '$(TARGETPLATFORM)'; +\begin{verbatim} +INSTALLING -#------------------------------------------------------------------------ -# If you are adjusting paths by hand for a binary GHC distribution, -# de-commenting the line to set GLASGOW_HASKELL_ROOT should do. -# Or you can leave it as is, and set the environment variable externally. -#------------------------------------------------------------------------ -# $ENV{'GLASGOW_HASKELL_ROOT'} = '/some/absolute/path/name'; +HOSTPLATFORM TARGETPLATFORM -if (! $ENV{'GLASGOW_HASKELL_ROOT'}) { # good -- death to environment variables - $TopPwd = '$(TOP_PWD)'; - $InstLibDirGhc = '$(INSTLIBDIR_GHC)'; - $InstDataDirGhc = '$(INSTDATADIR_GHC)'; -} else { - $TopPwd = $ENV{'GLASGOW_HASKELL_ROOT'}; +PROJECTNAME PROJECTVERSION PROJECTPATCHLEVEL - if ( '$(INSTLIBDIR_GHC)' =~ /^\/(local\/fp|usr\/local)(\/.*)/ ) { - $InstLibDirGhc = $ENV{'GLASGOW_HASKELL_ROOT'} . $2; - } else { - print STDERR "GLASGOW_HASKELL_ROOT environment variable is set;\nBut can't untangle $(INSTLIBDIR_GHC).\n(Installation error)\n"; - exit(1); - } +TOP_PWD - if ( '$(INSTDATADIR_GHC)' =~ /\/(local\/fp|usr\/local)(\/.*)/ ) { - $InstDataDirGhc = $ENV{'GLASGOW_HASKELL_ROOT'} . $2; - } else { - print STDERR "GLASGOW_HASKELL_ROOT environment variable is set;\nBut can't untangle $(INSTDATADIR_GHC).\n(Installation error)\n"; - exit(1); - } -} +bindir libdir datadir + +CURRENT_DIR TMPDIR + +GHC_LIB_DIR GHC_RUNTIME_DIR GHC_UTILS_DIR GHC_INCLUDE_DIR + +GHC_OPT_HILEV_ASM GhcWithNativeCodeGen + +GHC_UNLIT GHC_HSCPP GHC_HSC GHC_SYSMAN + +CP RM CONTEXT_DIFF + +WAY_*_NAME WAY_*_HC_OPTS + +LeadingUnderscore + +\end{verbatim} + +Establish what executables to run for the various phases, what the +default options are for those phases, and other similar boring stuff. + +\begin{code} +select(STDERR); $| = 1; select(STDOUT); # no STDERR buffering, please. + +$TargetPlatform = $TARGETPLATFORM; + +$TopPwd = "${TOP_PWD}"; +$InstBinDirGhc = "${bindir}"; +$InstLibDirGhc = "${libdir}"; +$InstLibexecDirGhc = "${libexecdir}"; +$InstDataDirGhc = "${datadir}"; +$InstSysLibDir = ( $INSTALLING ) ? "${InstLibDirGhc}/hslibs" : + "$TopPwd/hslibs"; $Status = 0; # just used for exit() status $Verbose = ''; -$CoreLint = ''; -$Time = ''; # ToDo: mkworld-ize the timing command # set up signal handler sub quit_upon_signal { &tidy_up_and_die(1, ''); } @@ -138,102 +147,98 @@ $SIG{'QUIT'} = 'quit_upon_signal'; # where to get "require"d .prl files at runtime (poor man's dynamic loading) # (use LIB, not DATA, because we can't be sure of arch-independence) -@INC = ( ( $(INSTALLING) ) ? "$InstLibDirGhc" - : "$TopPwd/$(CURRENT_DIR)" ); +@INC = ( ( $INSTALLING ) ? $InstLibDirGhc + : "$TopPwd/${CURRENT_DIR}" ); if ( $ENV{'TMPDIR'} ) { # where to make tmp file names $Tmp_prefix = ($ENV{'TMPDIR'} . "/ghc$$"); } else { - $Tmp_prefix ="$(TMPDIR)/ghc$$"; - $ENV{'TMPDIR'} = '$(TMPDIR)'; # set the env var as well + print STDERR "TMPDIR has not been set to anything useful!\n" if (${TMPDIR} eq ''); + $Tmp_prefix ="${TMPDIR}/ghc$$"; # TMPDIR set via Makefile when booting.. + $ENV{'TMPDIR'} = ${TMPDIR}; # set the env var as well } @Files_to_tidy = (); # files we nuke in the case of abnormal termination -$Unlit = ( $(INSTALLING) ) ? "$InstLibDirGhc/unlit" - : "$TopPwd/$(CURRENT_DIR)/$(GHC_UNLIT)"; -@Unlit_flags = (); +$Unlit = ( $INSTALLING ) ? "$InstLibexecDirGhc/unlit" + : "$TopPwd/${CURRENT_DIR}/${GHC_UNLIT}"; -$Cat = "cat"; +$Cp = $CP; +$Rm = $RM; +$Diff = $CONTEXT_DIFF; +$Cat = 'cat'; +$Cmp = 'cmp'; +$Time = ''; $HsCpp = # but this is re-set to "cat" (after options) if -cpp not seen - ( $(INSTALLING) ) ? "$InstLibDirGhc/hscpp" - : "$TopPwd/$(CURRENT_DIR)/$(GHC_HSCPP)"; -@HsCpp_flags = (); + ( $INSTALLING ) ? "$InstLibexecDirGhc/hscpp" + : "$TopPwd/${CURRENT_DIR}/${GHC_HSCPP}"; -$HsP = ( $(INSTALLING) ) ? "$InstLibDirGhc/hsp" - : "$TopPwd/$(CURRENT_DIR)/$(GHC_HSP)"; -@HsP_flags = (); +@HsCpp_flags = (); +$genSPECS_flag = ''; # See ../utils/hscpp/hscpp.prl +$HsC = ( $INSTALLING ) ? "$InstLibexecDirGhc/hsc" + : "$TopPwd/${CURRENT_DIR}/${GHC_HSC}"; -$HsC = ( $(INSTALLING) ) ? "$InstLibDirGhc/hsc" - : "$TopPwd/$(CURRENT_DIR)/$(GHC_HSC)"; +# For PVM fiends only +$SysMan = ( $INSTALLING ) ? "$InstLibexecDirGhc/SysMan" + : "$TopPwd/${CURRENT_DIR}/${GHC_SYSMAN}"; -$SysMan = ( $(INSTALLING) ) ? "$InstLibDirGhc/SysMan" - : "$TopPwd/$(CURRENT_DIR)/$(GHC_SYSMAN)"; +@Unlit_flags = (); +# # HsC_rts_flags: if we want to talk to the LML runtime system # NB: we don't use powers-of-2 sizes, because this may do # terrible things to cache behavior. +# $Specific_heap_size = 6 * 1000 * 1000; $Specific_stk_size = 1000 * 1000; -$Scale_sizes_by = 1.0; -$RTS_style = $(GHC_RTS_STYLE); -@HsC_rts_flags = (); - -@HsC_flags = (); -@HsC_antiflags = (); -\end{code} - -The optimisations/etc to be done by the compiler are {\em normally} -expressed with a \tr{-O} (or \tr{-O2}) flag, or by its absence. +$Scale_sizes_by = 1.0; -\begin{code} -$OptLevel = 0; # no -O == 0; -O == 1; -O2 == 2; -Ofile == 3 -$MinusO2ForC = 0; # set to 1 if -O2 should be given to C compiler -$StolenX86Regs = 4; # **HACK*** of the very worst sort \end{code} -These variables represent parts of the -O/-O2/etc ``templates,'' -which are filled in later, using these. +The variables set by @setupOptFlags@ represent parts of the +-O/-O2/etc ``templates,'' which are filled in later, using these. These are the default values, which may be changed by user flags. + \begin{code} -$Oopt_UnfoldingUseThreshold = '-fsimpl-uf-use-threshold3'; -$Oopt_MaxSimplifierIterations = '-fmax-simplifier-iterations4'; -$Oopt_PedanticBottoms = '-fpedantic-bottoms'; # ON by default -$Oopt_MonadEtaExpansion = ''; -#OLD:$Oopt_LambdaLift = ''; -$Oopt_AddAutoSccs = ''; -$Oopt_FinalStgProfilingMassage = ''; -$Oopt_StgStats = ''; -$Oopt_SpecialiseUnboxed = ''; -$Oopt_FoldrBuild = 1; # On by default! -$Oopt_FB_Support = '-fdo-new-occur-anal -fdo-arity-expand'; -#$Oopt_FoldrBuildWW = 0; # Off by default +sub setupOptFlags { + $Oopt_UnfoldingUseThreshold = '-fsimpl-uf-use-threshold3'; + $Oopt_MaxSimplifierIterations = '-fmax-simplifier-iterations4'; + $Oopt_PedanticBottoms = '-fpedantic-bottoms'; # ON by default + $Oopt_MonadEtaExpansion = ''; + $Oopt_FinalStgProfilingMassage = ''; + $Oopt_StgStats = ''; + $Oopt_SpecialiseUnboxed = ''; + $Oopt_DoSpecialise = ''; # ToDo:LATER: '-fspecialise'; + $Oopt_FoldrBuild = 0; # *Off* by default! + $Oopt_FB_Support = ''; # was '-fdo-arity-expand'; +# $Oopt_FoldrBuildWW = 0; # Off by default + $Oopt_FoldrBuildInline = ''; # was '-fdo-inline-foldr-build'; +} # end of setupOptFlags + +# Assign defaults to these right away. +&setupOptFlags(); \end{code} Things to do with C compilers/etc: \begin{code} -$CcUnregd = '$(GHC_DEBUG_HILEV_ASM)'; # our high-level assembler (non-optimising) -$CcRegd = '$(GHC_OPT_HILEV_ASM)'; # our high-level assembler (optimising) -$GccAvailable = $(GHC_GCC_IS_AVAILABLE); # whether GCC avail or not for optimising - +$CcRegd = $GHC_OPT_HILEV_ASM; @CcBoth_flags = ('-S'); # flags for *any* C compilation @CcInjects = (); -# non-registerizing flags: those for all files, those only for .c files; those only for .hc files -@CcUnregd_flags = ( $GccAvailable ) ? ('-ansi', '-pedantic') : (); -@CcUnregd_flags_c = (); -@CcUnregd_flags_hc= (); +# GCC flags: +# those for all files, +# those only for .c files; +# those only for .hc files -# ditto; but for registerizing (we must have GCC for this) @CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__'); @CcRegd_flags_c = (); @CcRegd_flags_hc = (); -$As = ''; # assembler is normally the same pgm as used for C compilation +$As = ''; # "assembler" is normally GCC @As_flags = (); -$Lnkr = ''; # linker is normally the same pgm as used for C compilation +$Lnkr = ''; # "linker" is normally GCC @Ld_flags = (); # 'nm' is used for consistency checking (ToDo: mk-world-ify) @@ -247,186 +252,233 @@ Prelude ({\em including} its interface file(s)). \begin{code} $BuildTag = ''; # default is sequential build w/ Appel-style GC -%BuildAvail = ('', '$(GHC_BUILD_FLAG_normal)', - '_p', '$(GHC_BUILD_FLAG_p)', - '_t', '$(GHC_BUILD_FLAG_t)', - '_u', '$(GHC_BUILD_FLAG_u)', - '_mc', '$(GHC_BUILD_FLAG_mc)', - '_mr', '$(GHC_BUILD_FLAG_mr)', - '_mt', '$(GHC_BUILD_FLAG_mt)', - '_mp', '$(GHC_BUILD_FLAG_mp)', - '_mg', '$(GHC_BUILD_FLAG_mg)', - '_2s', '$(GHC_BUILD_FLAG_2s)', - '_1s', '$(GHC_BUILD_FLAG_1s)', - '_du', '$(GHC_BUILD_FLAG_du)', - '_a', '$(GHC_BUILD_FLAG_a)', - '_b', '$(GHC_BUILD_FLAG_b)', - '_c', '$(GHC_BUILD_FLAG_c)', - '_d', '$(GHC_BUILD_FLAG_d)', - '_e', '$(GHC_BUILD_FLAG_e)', - '_f', '$(GHC_BUILD_FLAG_f)', - '_g', '$(GHC_BUILD_FLAG_g)', - '_h', '$(GHC_BUILD_FLAG_h)', - '_i', '$(GHC_BUILD_FLAG_i)', - '_j', '$(GHC_BUILD_FLAG_j)', - '_k', '$(GHC_BUILD_FLAG_k)', - '_l', '$(GHC_BUILD_FLAG_l)', - '_m', '$(GHC_BUILD_FLAG_m)', - '_n', '$(GHC_BUILD_FLAG_n)', - '_o', '$(GHC_BUILD_FLAG_o)', - '_A', '$(GHC_BUILD_FLAG_A)', - '_B', '$(GHC_BUILD_FLAG_B)' ); - -%BuildDescr = ('', 'normal sequential', - '_p', 'profiling', - '_t', 'ticky-ticky profiling', - '_t', 'unregisterized (using portable C only)', - '_mc', 'concurrent', - '_mr', 'profiled concurrent', - '_mt', 'ticky concurrent', - '_mp', 'parallel', - '_mg', 'GranSim', - '_2s', '2-space GC', - '_1s', '1-space GC', - '_du', 'dual-mode GC', - '_a', 'user way a', - '_b', 'user way b', - '_c', 'user way c', - '_d', 'user way d', - '_e', 'user way e', - '_f', 'user way f', - '_g', 'user way g', - '_h', 'user way h', - '_i', 'user way i', - '_j', 'user way j', - '_k', 'user way k', - '_l', 'user way l', - '_m', 'user way m', - '_n', 'user way n', - '_o', 'user way o', - '_A', 'user way A', - '_B', 'user way B' ); +%BuildDescr = (# system ways begin + '', 'normal sequential', + '_p', "$WAY_p_NAME", + '_t', "$WAY_t_NAME", + '_u', "$WAY_u_NAME", + '_mc', "$WAY_mc_NAME", + '_mr', "$WAY_mr_NAME", + '_mt', "$WAY_mt_NAME", + '_mp', "$WAY_mp_NAME", + '_mg', "$WAY_mg_NAME", + '_2s', "$WAY_2s_NAME", + '_1s', "$WAY_1s_NAME", + '_du', "$WAY_du_NAME", + # system ways end + '_a', "$WAY_a_NAME", + '_b', "$WAY_b_NAME", + '_c', "$WAY_c_NAME", + '_d', "$WAY_d_NAME", + '_e', "$WAY_e_NAME", + '_f', "$WAY_f_NAME", + '_g', "$WAY_g_NAME", + '_h', "$WAY_h_NAME", + '_i', "$WAY_i_NAME", + '_j', "$WAY_j_NAME", + '_k', "$WAY_k_NAME", + '_l', "$WAY_l_NAME", + '_m', "$WAY_m_NAME", + '_n', "$WAY_n_NAME", + '_o', "$WAY_o_NAME", + '_A', "$WAY_A_NAME", + '_B', "$WAY_B_NAME" ); # these are options that are "fed back" through the option processing loop -%UserSetupOpts = ('_a', '$(GHC_BUILD_OPTS_a)', - '_b', '$(GHC_BUILD_OPTS_b)', - '_c', '$(GHC_BUILD_OPTS_c)', - '_d', '$(GHC_BUILD_OPTS_d)', - '_e', '$(GHC_BUILD_OPTS_e)', - '_f', '$(GHC_BUILD_OPTS_f)', - '_g', '$(GHC_BUILD_OPTS_g)', - '_h', '$(GHC_BUILD_OPTS_h)', - '_i', '$(GHC_BUILD_OPTS_i)', - '_j', '$(GHC_BUILD_OPTS_j)', - '_k', '$(GHC_BUILD_OPTS_k)', - '_l', '$(GHC_BUILD_OPTS_l)', - '_m', '$(GHC_BUILD_OPTS_m)', - '_n', '$(GHC_BUILD_OPTS_n)', - '_o', '$(GHC_BUILD_OPTS_o)', - '_A', '$(GHC_BUILD_OPTS_A)', - '_B', '$(GHC_BUILD_OPTS_B)', - - # the GC ones don't have any "fed back" options - '_2s', '', - '_1s', '', - '_du', '' ); +# +%SetupOpts = + ( + '_a', "$WAY_a_HC_OPTS", + '_b', "$WAY_b_HC_OPTS", + '_c', "$WAY_c_HC_OPTS", + '_d', "$WAY_d_HC_OPTS", + '_e', "$WAY_e_HC_OPTS", + '_f', "$WAY_f_HC_OPTS", + '_g', "$WAY_g_HC_OPTS", + '_h', "$WAY_h_HC_OPTS", + '_i', "$WAY_i_HC_OPTS", + '_j', "$WAY_j_HC_OPTS", + '_k', "$WAY_k_HC_OPTS", + '_l', "$WAY_l_HC_OPTS", + '_m', "$WAY_m_HC_OPTS", + '_n', "$WAY_n_HC_OPTS", + '_o', "$WAY_o_HC_OPTS", + '_A', "$WAY_A_HC_OPTS", + '_B', "$WAY_B_HC_OPTS", + + # system ways + '_p', "$WAY_p_HC_OPTS", + '_t', "$WAY_t_HC_OPTS", + '_u', "$WAY_u_HC_OPTS", + '_mc', "$WAY_mc_HC_OPTS", + '_mr', "$WAY_mr_HC_OPTS", + '_mt', "$WAY_mt_HC_OPTS", + '_mp', "$WAY_mp_HC_OPTS", + '_mg', "$WAY_mg_HC_OPTS", + '_2s', "$WAY_2s_HC_OPTS", + '_1s', "$WAY_1s_HC_OPTS", + '_du', "$WAY_B_HC_OPTS" ); # per-build code fragments which are eval'd -%EvaldSetupOpts = ('', '', # this one must *not* be set! - - # profiled sequential - '_p', 'push(@HsC_flags, \'-fscc-profiling\'); - push(@CcBoth_flags, \'-DPROFILING\');', - - # ticky-ticky sequential - '_t', 'push(@HsC_flags, \'-fticky-ticky\'); - push(@CcBoth_flags, \'-DTICKY_TICKY\');', - - # unregisterized (ToDo????) - '_u', '', - - # concurrent - '_mc', '$StkChkByPageFaultOK = 0; - push(@HsC_flags, \'-fconcurrent\'); - push(@HsCpp_flags,\'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\'); - push(@Cpp_define, \'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\');', - - # profiled concurrent - '_mr', '$StkChkByPageFaultOK = 0; - push(@HsC_flags, \'-fconcurrent\', \'-fscc-profiling\'); - push(@HsCpp_flags,\'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\'); - push(@Cpp_define, \'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\', \'-DPROFILING\');', - - # ticky-ticky concurrent - '_mt', '$StkChkByPageFaultOK = 0; - push(@HsC_flags, \'-fconcurrent\', \'-fticky-ticky\'); - push(@HsCpp_flags,\'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\'); - push(@Cpp_define, \'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\', \'-DTICKY_TICKY\');', - - # parallel - '_mp', '$StkChkByPageFaultOK = 0; - push(@HsC_flags, \'-fconcurrent\'); - push(@HsCpp_flags,\'-D__PARALLEL_HASKELL__\', \'-DPAR\'); - push(@Cpp_define, \'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\', \'-DPAR\');', - - # GranSim - '_mg', '$StkChkByPageFaultOK = 0; - push(@HsC_flags, \'-fconcurrent\'); -#???????????? push(@HsCpp_flags,\'-D__PARALLEL_HASKELL__\', \'-DPAR\'); - push(@Cpp_define, \'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\', \'-DGRAN\');', - - '_2s', 'push (@CcBoth_flags, \'-DGC2s\');', - '_1s', 'push (@CcBoth_flags, \'-DGC1s\');', - '_du', 'push (@CcBoth_flags, \'-DGCdu\');', - - '_a', '', # these user-way guys should not be set! - '_b', '', - '_c', '', - '_d', '', - '_e', '', - '_f', '', - '_g', '', - '_h', '', - '_i', '', - '_j', '', - '_k', '', - '_l', '', - '_m', '', - '_n', '', - '_o', '', - '_A', '', - '_B', '' ); +#%EvaldSetupOpts = ('', '', # this one must *not* be set! + +# # profiled sequential +# '_p', 'push(@HsC_flags, \'-fscc-profiling\'); +# push(@CcBoth_flags, \'-DPROFILING\');', + +# #and maybe ... +# #push(@CcBoth_flags, '-DPROFILING_DETAIL_COUNTS'); + +# # ticky-ticky sequential +# '_t', 'push(@HsC_flags, \'-fticky-ticky\'); +# push(@CcBoth_flags, \'-DTICKY_TICKY\');', + +##OLD: # unregisterized (ToDo????) +## '_u', '', + +# # concurrent +# '_mc', '$StkChkByPageFaultOK = 0; +# push(@HsC_flags, \'-fconcurrent\'); +# push(@HsCpp_flags,\'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\'); +# push(@Cpp_define, \'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\');', + +# # profiled concurrent +# '_mr', '$StkChkByPageFaultOK = 0; +# push(@HsC_flags, \'-fconcurrent\', \'-fscc-profiling\'); +# push(@HsCpp_flags,\'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\'); +# push(@Cpp_define, \'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\', \'-DPROFILING\');', + +# # ticky-ticky concurrent +# '_mt', '$StkChkByPageFaultOK = 0; +# push(@HsC_flags, \'-fconcurrent\', \'-fticky-ticky\'); +# push(@HsCpp_flags,\'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\'); +# push(@Cpp_define, \'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\', \'-DTICKY_TICKY\');', + +# # parallel +# '_mp', '$StkChkByPageFaultOK = 0; +# push(@HsC_flags, \'-fconcurrent\'); +# push(@HsCpp_flags,\'-D__PARALLEL_HASKELL__\', \'-DPAR\'); +# push(@Cpp_define, \'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\', \'-DPAR\');', + +# # GranSim +# '_mg', '$StkChkByPageFaultOK = 0; +# push(@HsC_flags, \'-fconcurrent\', \'-fgransim\'); +# push(@HsCpp_flags,\'-D__GRANSIM__\', \'-DGRAN\'); +# push(@Cpp_define, \'-D__CONCURRENT_HASKELL__\', \'-DCONCURRENT\', \'-DGRAN\');', + +# '_2s', 'push (@CcBoth_flags, \'-DGC2s\');', +# '_1s', 'push (@CcBoth_flags, \'-DGC1s\');', +# '_du', 'push (@CcBoth_flags, \'-DGCdu\');', + +# '_a', '', # these user-way guys should not be set! +# '_b', '', +# '_c', '', +# '_d', '', +# '_e', '', +# '_f', '', +# '_g', '', +# '_h', '', +# '_i', '', +# '_j', '', +# '_k', '', +# '_l', '', +# '_m', '', +# '_n', '', +# '_o', '', +# '_A', '', +# '_B', '' ); + \end{code} Import/include directories (\tr{-I} options) are sufficiently weird to require special handling. + \begin{code} @Import_dir = ('.'); #-i things @Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing -@SysImport_dir = ( $(INSTALLING) ) - ? ( "$InstDataDirGhc/imports" ) - : ( "$TopPwd/$(CURRENT_DIR)/$(GHC_LIBSRC)/prelude" - ); +# where to look for interface files (system hi's, i.e., prelude and hslibs) +@SysImport_dir = ( $INSTALLING ) + ? ( "$InstLibDirGhc/imports" ) + : ( "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/required" + , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/ghc" + , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/glaExts" + , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/concurrent" ); -$ghc_version_info = $(PROJECTVERSION) * 100; -$haskell1_version = 2; # i.e., Haskell 1.2 -@Cpp_define = (); +# We need to look in ghc/ and glaExts/ when searching for implicitly needed .hi files, but +# we should really *not* look there for explicitly imported modules. + +$GhcVersionInfo = int ($PROJECTVERSION * 100); +$Haskell1Version = 4; # i.e., Haskell 1.4 +@Cpp_define = (); @UserLibrary_dir= (); #-L things;... @UserLibrary = (); #-l things asked for by the user -@SysLibrary_dir = ( ( $(INSTALLING) ) #-syslib things supplied by the system - ? "$InstLibDirGhc" - : ("$TopPwd/$(CURRENT_DIR)/$(GHC_RUNTIMESRC)", - "$TopPwd/$(CURRENT_DIR)/$(GHC_RUNTIMESRC)/gmp", - "$TopPwd/$(CURRENT_DIR)/$(GHC_LIBSRC)") +@SysLibrary_dir = ( ( $INSTALLING ) #-syslib things supplied by the system + ? $InstLibDirGhc + : ( "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR" + , "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/gmp" + , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR" + , "$TopPwd/$CURRENT_DIR/$GHC_LIB_DIR/cbits" + ) ); -@SysLibrary = ( '-lHS' ); # basic I/O and prelude stuff +@SysLibrary = (); # will be built up as we go along $TopClosureFile # defaults to 1.2 one; will be mangled later - = ( $(INSTALLING) ) ? "$InstLibDirGhc/TopClosureXXXX.o" - : "$TopPwd/$(CURRENT_DIR)/$(GHC_RUNTIMESRC)/main/TopClosureXXXX.o"; + = ( $INSTALLING) ? "$InstLibDirGhc/TopClosureXXXX.o" + : "$TopPwd/$CURRENT_DIR/$GHC_RUNTIME_DIR/main/TopClosureXXXX.o"; + +# make depend for Haskell +$MkDependHS + = ( $INSTALLING ) ? "$InstBinDirGhc/mkdependHS" + : "$TopPwd/$CURRENT_DIR/$GHC_UTILS_DIR/mkdependHS/mkdependHS"; +# Fill in later +@MkDependHS_flags = ( ); + +# do_link flag should not be reset while rescanning the cmd-line. +$Do_lnkr = 1; +$Specific_output_dir = ''; # set by -odir +$Specific_output_file = ''; # set by -o ; "-" for stdout +\end{code} + +Function to initialise the per-compilation-unit globals that +are used to guide and control the invocation of the different phases. + +\begin{code} +sub initDriverGlobals { + +# reset the following options: +# RTS flags to use while compiling +@HsC_rts_flags = (); +@HsP_flags = (); # these are the flags destined solely for + # the flex/yacc parser +@HsC_flags = (); +@HsC_antiflags = (); +\end{code} + +The optimisations/etc to be done by the compiler are {\em normally} +expressed with a \tr{-O} (or \tr{-O2}) flag, or by its absence. + +\begin{code} +$OptLevel = 0; # no -O == 0; -O == 1; -O2 == 2; -Ofile == 3 +$MinusO2ForC = 0; # set to 1 if -O2 should be given to C compiler +$StolenX86Regs = 4; # **HACK*** of the very worst sort +$CoreLint = ''; +$StgLint = ''; + +@CcBoth_flags = ('-S'); # flags for *any* C compilation +@CcInjects = (); + +# GCC flags: those for all files, those only for .c files; those only for .hc files +@CcRegd_flags = ('-ansi', '-D__STG_GCC_REGS__', '-D__STG_TAILJUMPS__'); +@CcRegd_flags_c = (); +@CcRegd_flags_hc = (); + +@Import_dir = ('.'); #-i things +@Include_dir = ('.'); #-I things; other default(s) stuck on AFTER option processing + + \end{code} We are given a list of files with various presumably-known suffixes @@ -438,68 +490,70 @@ start with. Linking is weird and kept track of separately. Here are the initial defaults applied to all files: \begin{code} -$Do_lit2pgm = 1; -$Do_hscpp = 1; # but we run 'cat' by default (see after arg check) -$Cpp_flag_set = 0; # (hack) -$Only_preprocess_C = 0; # pretty hackish -$ProduceHi = 1; # but beware magical value "2"! (hack) +$Cpp_flag_set = 0; # (hack) +$Only_preprocess_C = 0; # pretty hackish +$Only_generate_deps = 0; # $PostprocessCcOutput = 0; -$HiDiff_flag= 0; # native code-gen or via C? -$HaveNativeCodeGen = $(GHC_WITH_NATIVE_CODEGEN); -$ProduceS = ''; -if ($HaveNativeCodeGen) { - if ($TargetPlatform =~ /^(alpha|sparc)-/) { - $ProduceS = $TargetPlatform; - } -} -$ProduceC = ($ProduceS) ? 0 : 1; +$HaveNativeCodeGen = $GhcWithNativeCodeGen; +$HscOut = '-C='; # '-C=' ==> .hc output; '-S=' ==> .s output; '-N=' ==> neither +$HscOut = '-S=' + if $HaveNativeCodeGen && $TargetPlatform =~ /^(alpha|sparc)-/; +# TEMP: disable x86 if $HaveNativeCodeGen && $TargetPlatform =~ /^(i386|alpha|sparc)-/; +$ProduceHi = '-hifile='; +$HiOnStdout = 0; +$HiDiff_flag = ''; $CollectingGCstats = 0; $CollectGhcTimings = 0; -$RegisteriseC = ''; # set to 'o', if using optimised C code (only if avail) - # or if generating equiv asm code $DEBUGging = ''; # -DDEBUG and all that it entails (um... not really) $PROFing = ''; # set to p or e if profiling $PROFgroup = ''; # set to group if an explicit -Ggroup specified $PROFauto = ''; # set to relevant hsc flag if -auto or -auto-all $PROFcaf = ''; # set to relevant hsc flag if -caf-all -#UNUSED:$PROFdict = ''; # set to relevant hsc flag if -dict-all $PROFignore_scc = ''; # set to relevant parser flag if explicit sccs ignored +$UNPROFscc_auto = ''; # set to relevant hsc flag if forcing auto sccs without profiling $TICKYing = ''; # set to t if compiling for ticky-ticky profiling $PARing = ''; # set to p if compiling for PAR $CONCURing = ''; # set to c if compiling for CONCURRENT $GRANing = ''; # set to g if compiling for GRAN $StkChkByPageFaultOK = 1; # may be set to 0 (false) for some builds -$Specific_output_dir = ''; # set by -odir -$Specific_output_file = ''; # set by -o ; "-" for stdout $Specific_hi_file = ''; # set by -ohi ; "-" for stdout $Specific_dump_file = ''; # set by -odump ; "-" for stdout $Using_dump_file = 0; -$Osuffix = '.o'; -$HiSuffix = '.hi'; -$Do_hsp = 2; # 1 for "old" parser; 2 for "new" parser (in hsc) -$Do_hsc = 1; +$Isuffix = ''; +$Osuffix = ''; # default: use the normal suffix for that kind of output +$HiSuffix = 'hi'; +$HiSuffix_prelude = ''; +$Do_recomp_chkr = 0; # don't use the recompilatio checker unless asked $Do_cc = -1; # a MAGIC indeterminate value; will be set to 1 or 0. $Do_as = 1; -$Do_lnkr = 1; + $Keep_hc_file_too = 0; $Keep_s_file_too = 0; -$CompilingPrelude = 0; +$UseGhcInternals = 0; # if 1, may use GHC* modules $SplitObjFiles = 0; $NoOfSplitFiles = 0; $Dump_parser_output = 0; $Dump_raw_asm = 0; -$Dump_asm_insn_counts = 0; -$Dump_asm_globals_info = 0; $Dump_asm_splitting_info = 0; +$NoImplicitPrelude = 0; + + +} # end of initDriverGlobals (Sigh) + +# we split the argv passed to the driver into three: -# and the list of files +# the list of files @Input_file = (); # and files to be linked... @Link_file = (); + +# and whatever else +@Cmd_opts = (); + \end{code} We inject consistency-checking information into \tr{.hc} files (both @@ -514,16 +568,16 @@ $LinkChk = 1; # set to 0 if the link check should *not* be done # major & minor version numbers; major numbers must always agree; # minor disagreements yield a warning. -$HsC_major_version = 29; +$HsC_major_version = 31; $HsC_minor_version = 0; -$Cc_major_version = 33; +$Cc_major_version = 36; $Cc_minor_version = 0; # options: these must always agree $HsC_consist_options = ''; # we record, in this order: # Build tag; debugging? $Cc_consist_options = ''; # we record, in this order: - # Build tag; debugging? registerised? + # Build tag; debugging? \end{code} %************************************************************************ @@ -534,1919 +588,1603 @@ $Cc_consist_options = ''; # we record, in this order: Now slurp through the arguments. \begin{code} -# can't use getopt(s); what we want is too complicated -arg: while($_ = $ARGV[0]) { - shift(@ARGV); - #---------- help ------------------------------------------------------- - if (/^-\?$/ || /^-help$/) { print $LongUsage; exit $Status; } +#---------- user defined prelude --------------------------------------- - #---------- verbosity and such ----------------------------------------- - /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; }; +if (grep(/^-user-prelude$/, @ARGV)) { - #---------- what phases are to be run ---------------------------------- - /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; }; - # change the global default: - # we won't run cat; we'll run the real thing - - /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; - $ProduceC = 1; $ProduceS = ''; - next arg; }; - # stop after generating C - - /^-noC$/ && do { $ProduceC = 0; $ProduceS = ''; $ProduceHi = 0; - $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; - next arg; }; - # leave out actual C generation (debugging) [also turns off interface gen] + # If ARGV contains -user-prelude we are compiling a piece of + # prelude for the user, probably with additional specialise pragmas - /^-hi$/ && do { $ProduceHi = 2; next arg; }; - # _do_ generate an interface; usually used as: -noC -hi - # NB: magic value "2" for $ProduceHi (hack) + # We strip out the -O -f and -user-prelude flags provided on + # the command line and add the ones used to compile the prelude + # ToDo: get these options from a common definition in mkworld - /^-nohi$/ && do { $ProduceHi = 0; next arg; }; - # don't generate an interface (even if generating C) + # We also enable any options forced through with -user-prelude-force - /^-hi-diffs$/ && do { $HiDiff_flag = 1; next arg; }; - # show diffs if the interface file changes + # Hey, Check out this grep statement ;-) (PS) - /^-E$/ && do { push(@CcBoth_flags, '-E'); - $Only_preprocess_C = 1; - $Do_as = 0; $Do_lnkr = 0; next arg; }; - # stop after preprocessing C + @ARGV = grep((!/^-O/ && !/^-f/ && !/^-user-prelude$/) || s/^-user-prelude-force//, + @ARGV); - /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; }; - # stop after generating assembler - - /^-c$/ && do { $Do_lnkr = 0; next arg; }; - # stop after generating .o files - - /^-link-chk$/ && do { $LinkChk = 1; next arg; }; - /^-no-link-chk$/ && do { $LinkChk = 0; next arg; }; - # don't do consistency-checking after a link + unshift(@ARGV, + '-fcompiling-ghc-internals=???', # ToDo!!!! + '-O', + '-fshow-pragma-name-errs', + '-fshow-import-specs', + '-fglasgow-exts', + '-genSPECS', + '-DUSE_FOLDR_BUILD', + '-dcore-lint'); - # generate code for a different target architecture; e.g., m68k - # ToDo: de-Glasgow-ize & probably more... -# OLD: -# /^-target$/ && do { $TargetPlatform = &grab_arg_arg('-target', ''); -# if ($TargetPlatform ne $HostPlatform) { -# if ( $TargetPlatform =~ /^m68k-/ ) { -# $CcUnregd = $CcRegd = 'gcc-m68k'; -# } else { -# print STDERR "$Pgm: Can't handle -target $TargetPlatform\n"; -# $Status++; -# } -# } -# next arg; }; - - /^-unregisteri[sz]ed$/ && do { $RegisteriseC = 'no'; - $ProduceC = 1; $ProduceS = ''; # via C, definitely - next arg; }; - - /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg('-tmpdir', ''); - $Tmp_prefix = "$Tmp_prefix/ghc$$"; - $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it... - next arg; }; - # use an alternate directory for temp files + print STDERR "ghc: -user-prelude options:\n", "@ARGV", "\n"; +} - #---------- redirect output -------------------------------------------- +&initDriverGlobals(); +&splitCmdLine(@ARGV); +# Run through the cmd-line first time. +&processArgs(@Cmd_opts); - # -o ; applies to the last phase, whatever it is - # "-o -" sends it to stdout - # if has a directory component, that dir must already exist +# Check to see if driver is only in the business +# to generate dependencies +if ( $Status == 0 && $Only_generate_deps ) { - /^-o$/ && do { $Specific_output_file = &grab_arg_arg('-o', ''); - if ($Specific_output_file ne '-' - && $Specific_output_file =~ /(.*)\/[^\/]*$/) { - local($dir_part) = $1; - if (! -d $dir_part) { - print STDERR "$Pgm: no such directory: $dir_part\n"; - $Status++; - } - } - next arg; }; + push (@MkDependHS_flags, "-o$Osuffix") if $Osuffix; + push (@MkDependHS_flags, "-s$BuildTag") if $BuildTag; + local($to_do) = "$MkDependHS @MkDependHS_flags -- @Cmd_opts -- @Input_file" ; + &run_something($to_do, 'Haskell dependencies'); + exit $Status; +} - # -ohi ; send the interface to ; "-ohi -" to send to stdout - /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg('-ohi', ''); - if ($Specific_hi_file ne '-' - && $Specific_hi_file =~ /(.*)\/[^\/]*$/) { - local($dir_part) = $1; - if (! -d $dir_part) { - print STDERR "$Pgm: no such directory: $dir_part\n"; - $Status++; - } - } - next arg; }; +# if there are several input files, +# we don't allow \tr{-o } or \tr{-ohi } options... +# (except if linking, of course) - /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg('-odump', ''); - if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) { - local($dir_part) = $1; - if (! -d $dir_part) { - print STDERR "$Pgm: no such directory: $dir_part\n"; - $Status++; - } - } - next arg; }; +if ($#Input_file > 0 && ( ! $Do_lnkr )) { + if ( ($Specific_output_file ne '' && $Specific_output_file ne '-') + || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) { + print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n"; + print STDERR "\tPerhaps the -odir option will do what you want.\n"; + $Status++; + } +} - /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg('-odir', ''); - if (! -d $Specific_output_dir) { - print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n"; - $Status++; - } - next arg; }; +# check for various pathological -o and -odir combinations... +if ($Specific_output_dir ne '' && $Specific_output_file ne '') { + if ($Specific_output_file eq '-') { + print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n"; + $Status++; + } else { # amalgamate... + $Specific_output_file = "$Specific_output_dir/$Specific_output_file"; + # ToDo: check we haven't got a junk name now... + $Specific_output_dir = ''; # reset + } +} - /^-osuf$/ && do { $Osuffix = &grab_arg_arg('-osuf', ''); next arg; }; - /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg('-hisuf', ''); - push(@HsP_flags, "-h$HiSuffix"); - next arg; }; +# crash and burn if there were errors +if ( $Status > 0 ) { + print STDERR $ShortUsage; + exit $Status; +} +\end{code} - /^-hisuf-prelude$/ && do { # as esoteric as they come... - local($suffix) = &grab_arg_arg('-hisuf-prelude', ''); - push(@HsP_flags, "-g$suffix"); - next arg; }; +%************************************************************************ +%* * +\section[Driver-post-argv-mangling]{Setup after reading options} +%* * +%************************************************************************ - #-------------- scc & Profiling Stuff ---------------------------------- +%************************************************************************ +%* * +\subsection{Set up for optimisation level (\tr{-O} or whatever)} +%* * +%************************************************************************ - /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later! +We come now to the default ``wads of options'' that are turned on by +\tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation), +\tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is +more important). - /^-auto/ && do { - # generate auto SCCs on top level bindings - # -auto-all = all top level bindings - # -auto = only top level exported bindings - $PROFauto = ( /-all/ ) - ? '-fauto-sccs-on-all-toplevs' - : '-fauto-sccs-on-exported-toplevs'; - next arg; }; +The user can also specify his/her own list of options in a file; in +that case, the work is already done (see stuff about @minusO3@, +earlier...). - /^-caf-all/ && do { # generate individual CAF SCC annotations - $PROFcaf = '-fauto-sccs-on-individual-cafs'; - next arg; }; +GHC allows very precise control of what happens during a compilation. +Core-to-Core and STG-to-STG passes can be run in any order, as many +times as you like. Individual transformations can be turned on or +disabled. -# UNUSED: -# /^-dict-all/ && do { # generate individual SCC annotations on dictionaries -# $PROFdict = '-fauto-sccs-on-individual-dicts'; -# next arg; }; +Sadly, however, there are some interdependencies \& Things You Must +Not Do. Here is the list. - /^-ignore-scc$/ && do { - # forces ignore of scc annotations even if profiling - $PROFignore_scc = '-W'; - next arg; }; +CORE-TO-CORE PASSES: +\begin{description} +\item[\tr{-fspecialise}:] +The specialiser must have dependency-analysed input; but if you run +the simplifier to do this, you must not let it toss away unused +bindings! (The typechecker conveys some specialisation info via +``unused'' bindings...) - /^-G(.*)$/ && do { push(@HsC_flags, $_); # set group for cost centres - next arg; }; +\item[\tr{-ffloat-inwards}:] +Floating inwards should be done before strictness analysis, because +the latter will give better results. - #--------- ticky/concurrent/parallel ----------------------------------- - # we sort out the details a bit later on +\item[\tr{-fstatic-args}:] +The static-arguments-transformation pass {\em must} have the +simplifier run right after it. - /^-concurrent$/ && do { $CONCURing = 'c'; next arg; }; # concurrent Haskell - /^-gransim$/ && do { $GRANing = 'g'; next arg; }; # GranSim - /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky - /^-parallel$/ && do { $PARing = 'p'; next arg; } ; # parallel Haskell +\item[\tr{-fcalc-inlinings[12]}:] +Not required, but there may be slight gains by re-simplifying after +this is done. (You could then \tr{-fcalc-inlinings} again, just for +fun.) - #-------------- "user ways" -------------------------------------------- +\item[\tr{-ffull-laziness}:] +The (outwards-)let-floater should be the {\em last} Core-to-Core pass +that's run. (Um, well, howzabout the simplifier just once more...) +\end{description} - (/^-user-setup-([a-oA-Z])$/ - || /^$(GHC_BUILD_FLAG_a)$/ - || /^$(GHC_BUILD_FLAG_b)$/ - || /^$(GHC_BUILD_FLAG_c)$/ - || /^$(GHC_BUILD_FLAG_d)$/ - || /^$(GHC_BUILD_FLAG_e)$/ - || /^$(GHC_BUILD_FLAG_f)$/ - || /^$(GHC_BUILD_FLAG_g)$/ - || /^$(GHC_BUILD_FLAG_h)$/ - || /^$(GHC_BUILD_FLAG_i)$/ - || /^$(GHC_BUILD_FLAG_j)$/ - || /^$(GHC_BUILD_FLAG_k)$/ - || /^$(GHC_BUILD_FLAG_l)$/ - || /^$(GHC_BUILD_FLAG_m)$/ - || /^$(GHC_BUILD_FLAG_n)$/ - || /^$(GHC_BUILD_FLAG_o)$/ - || /^$(GHC_BUILD_FLAG_A)$/ - || /^$(GHC_BUILD_FLAG_B)$/ - - || /^$(GHC_BUILD_FLAG_2s)$/ # GC ones... - || /^$(GHC_BUILD_FLAG_1s)$/ - || /^$(GHC_BUILD_FLAG_du)$/ - ) && do { - /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; }; +STG-TO-STG PASSES: +\begin{description} +\item[\tr{-fupdate-analysis}:] +It really really wants to be the last STG-to-STG pass that is run. +\end{description} - /^$(GHC_BUILD_FLAG_a)$/ && do { $BuildTag = '_a'; }; - /^$(GHC_BUILD_FLAG_b)$/ && do { $BuildTag = '_b'; }; - /^$(GHC_BUILD_FLAG_c)$/ && do { $BuildTag = '_c'; }; - /^$(GHC_BUILD_FLAG_d)$/ && do { $BuildTag = '_d'; }; - /^$(GHC_BUILD_FLAG_e)$/ && do { $BuildTag = '_e'; }; - /^$(GHC_BUILD_FLAG_f)$/ && do { $BuildTag = '_f'; }; - /^$(GHC_BUILD_FLAG_g)$/ && do { $BuildTag = '_g'; }; - /^$(GHC_BUILD_FLAG_h)$/ && do { $BuildTag = '_h'; }; - /^$(GHC_BUILD_FLAG_i)$/ && do { $BuildTag = '_i'; }; - /^$(GHC_BUILD_FLAG_j)$/ && do { $BuildTag = '_j'; }; - /^$(GHC_BUILD_FLAG_k)$/ && do { $BuildTag = '_k'; }; - /^$(GHC_BUILD_FLAG_l)$/ && do { $BuildTag = '_l'; }; - /^$(GHC_BUILD_FLAG_m)$/ && do { $BuildTag = '_m'; }; - /^$(GHC_BUILD_FLAG_n)$/ && do { $BuildTag = '_n'; }; - /^$(GHC_BUILD_FLAG_o)$/ && do { $BuildTag = '_o'; }; - /^$(GHC_BUILD_FLAG_A)$/ && do { $BuildTag = '_A'; }; - /^$(GHC_BUILD_FLAG_B)$/ && do { $BuildTag = '_B'; }; - - /^$(GHC_BUILD_FLAG_2s)$/ && do { $BuildTag = '_2s'; }; - /^$(GHC_BUILD_FLAG_1s)$/ && do { $BuildTag = '_1s'; }; - /^$(GHC_BUILD_FLAG_du)$/ && do { $BuildTag = '_du'; }; +\begin{code} - local($stuff) = $UserSetupOpts{$BuildTag}; - local(@opts) = split(/\s+/, $stuff); - - # feed relevant ops into the arg-processing loop (if any) - unshift(@ARGV, @opts) if $#opts >= 0; +sub setupOptimiseFlags { - next arg; }; + @HsC_minusNoO_flags + = ( '-fsimplify', + '\(', + $Oopt_FB_Support, +# '-falways-float-lets-from-lets', # no idea why this was here (WDP 95/09) + '-ffloat-lets-exposing-whnf', + '-ffloat-primops-ok', + '-fcase-of-case', +# '-fdo-lambda-eta-expansion', # too complicated + '-freuse-con', +# '-flet-to-case', # no strictness analysis, so... + $Oopt_PedanticBottoms, +# $Oopt_MonadEtaExpansion, # no thanks + '-fsimpl-uf-use-threshold0', + '-fessential-unfoldings-only', +# $Oopt_UnfoldingUseThreshold, # no thanks + $Oopt_MaxSimplifierIterations, + '\)', + $Oopt_AddAutoSccs, +# '-ffull-laziness', # removed 95/04 WDP following Andr\'e's lead + + $Oopt_FinalStgProfilingMassage + ); - #---------- set search paths for libraries and things ------------------ + @HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits) + = ( + '-fdo-eta-reduction', - # we do -i just like HBC (-i clears the list; -i - # prepends the items to the list); -I is for including C .h files. + # initial simplify: mk specialiser happy: minimum effort please + '-fsimplify', + '\(', + $Oopt_FB_Support, + '-fkeep-spec-pragma-ids', # required before specialisation + '-fsimpl-uf-use-threshold0', + '-fessential-unfoldings-only', + '-fmax-simplifier-iterations1', + $Oopt_PedanticBottoms, + '\)', - /^-i$/ && do { @Import_dir = (); # import path cleared! - @SysImport_dir = (); - print STDERR "WARNING: import paths cleared by `-i'\n"; - next arg; }; + ($Oopt_DoSpecialise) ? ( + '-fspecialise-overloaded', + $Oopt_SpecialiseUnboxed, + $Oopt_DoSpecialise, + ) : (), - /^-i(.*)/ && do { local(@new_items) - = split( /:/, &grab_arg_arg('-i', $1)); - unshift(@Import_dir, @new_items); - next arg; }; + '-fsimplify', # need dependency anal after specialiser ... + '\(', # need tossing before calc-inlinings ... + $Oopt_FB_Support, + '-ffloat-lets-exposing-whnf', + '-ffloat-primops-ok', + '-fcase-of-case', + '-fdo-case-elim', + '-fcase-merge', +# '-fdo-eta-reduction', + '-fdo-lambda-eta-expansion', + '-freuse-con', + $Oopt_PedanticBottoms, + $Oopt_MonadEtaExpansion, + $Oopt_UnfoldingUseThreshold, + $Oopt_MaxSimplifierIterations, + '\)', - /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg('-I', $1)); next arg; }; - /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg('-L', $1)); next arg; }; - /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg('-l', $1)); next arg; }; +#LATER: '-fcalc-inlinings1', -- pointless for 2.01 - /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg('-syslib',$1); - print STDERR "$Pgm: no such system library (-syslib): $syslib\n", - $Status++ unless $syslib =~ /^(hbc|ghc|contrib)$/; +# ($Oopt_FoldrBuildWW) ? ( +# '-ffoldr-build-ww-anal', +# '-ffoldr-build-worker-wrapper', +# '-fsimplify', +# '\(', +# $Oopt_FB_Support, +# '-ffloat-lets-exposing-whnf', +# '-ffloat-primops-ok', +# '-fcase-of-case', +# '-fdo-case-elim', +# '-fcase-merge', +# '-fdo-eta-reduction', +# '-fdo-lambda-eta-expansion', +# '-freuse-con', +# $Oopt_PedanticBottoms, +# $Oopt_MonadEtaExpansion, +# $Oopt_UnfoldingUseThreshold, +# $Oopt_MaxSimplifierIterations, +# '\)', +# ) : (), - unshift(@SysImport_dir, - $(INSTALLING) - ? "$InstDataDirGhc/imports/$syslib" - : "$TopPwd/$(CURRENT_DIR)/$(GHC_LIBSRC)/$syslib"); + # this pass-ordering sequence was agreed by Simon and Andr\'e + # (WDP 94/07, 94/11). + '-ffull-laziness', - unshift(@SysLibrary, ('-lHS' . $syslib )); + ($Oopt_FoldrBuild) ? ( + '-ffoldr-build-on', # desugar list comprehensions for foldr/build - next arg; }; + '-fsimplify', + '\(', + '-fignore-inline-pragma', # **** NB! + '-fdo-foldr-build', # NB + $Oopt_FB_Support, + '-ffloat-lets-exposing-whnf', + '-ffloat-primops-ok', + '-fcase-of-case', + '-fdo-case-elim', + '-fcase-merge', +# '-fdo-eta-reduction', + '-fdo-lambda-eta-expansion', # After full laziness + '-freuse-con', + $Oopt_PedanticBottoms, + $Oopt_MonadEtaExpansion, + $Oopt_UnfoldingUseThreshold, + $Oopt_MaxSimplifierIterations, + '\)', + ) : (), - #======================================================================= - # various flags that we can harmlessly send to one program or another - # (we will later "reclaim" some of the compiler ones now sent to gcc) - #======================================================================= + '-ffloat-inwards', - #---------- this driver itself (ghc) ----------------------------------- - # these change what executable is run for each phase: - /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; }; - /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; }; - /^-pgmp(.*)$/ && do { $HsP = $1; next arg; }; - /^-pgmC(.*)$/ && do { $HsC = $1; next arg; }; - /^-pgmcO(.*)$/ && do { $CcRegd = $1; next arg; }; - /^-pgmc(.*)$/ && do { $CcUnregd = $1; next arg; }; - /^-pgma(.*)$/ && do { $As = $1; next arg; }; - /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; }; + '-fsimplify', + '\(', + $Oopt_FB_Support, + '-ffloat-lets-exposing-whnf', + '-ffloat-primops-ok', + '-fcase-of-case', + '-fdo-case-elim', + '-fcase-merge', + '-fdo-eta-reduction', + '-fdo-lambda-eta-expansion', + '-freuse-con', + ($Oopt_FoldrBuildInline), + # you need to inline foldr and build + ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (), + # but do reductions if you see them! + $Oopt_PedanticBottoms, + $Oopt_MonadEtaExpansion, + $Oopt_UnfoldingUseThreshold, + $Oopt_MaxSimplifierIterations, + '\)', - #---------- the get-anything-through opts (all pgms) ------------------- - # these allow arbitrary option-strings to go to any phase: - /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; }; - /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; }; - /^-optp(.*)$/ && do { push(@HsP_flags, $1); next arg; }; - /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; }; - /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; }; - /^-optcNhc(.*)$/ && do { push(@CcUnregd_flags_hc,$1); next arg; }; - /^-optcNc(.*)$/ && do { push(@CcUnregd_flags_c,$1); next arg; }; - /^-optcN(.*)$/ && do { push(@CcUnregd_flags, $1); next arg; }; - /^-optcOhc(.*)$/&& do { push(@CcRegd_flags_hc,$1); next arg; }; - /^-optcOc(.*)$/ && do { push(@CcRegd_flags_c, $1); next arg; }; - /^-optcO(.*)$/ && do { push(@CcRegd_flags, $1); next arg; }; - /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; }; - /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; }; - /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; }; + '-fstrictness', - #---------- Haskell C pre-processor (hscpp) ---------------------------- - /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg('-D',$1)."'"); next arg; }; - /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg('-U',$1)."'"); next arg; }; + '-fsimplify', + '\(', + $Oopt_FB_Support, + '-ffloat-lets-exposing-whnf', + '-ffloat-primops-ok', + '-fcase-of-case', + '-fdo-case-elim', + '-fcase-merge', +# '-fdo-eta-reduction', + '-fdo-lambda-eta-expansion', + '-freuse-con', + '-flet-to-case', # Aha! Only done after strictness analysis + $Oopt_PedanticBottoms, + $Oopt_MonadEtaExpansion, + $Oopt_UnfoldingUseThreshold, + $Oopt_MaxSimplifierIterations, + '\)', - #---------- Haskell parser (hsp) --------------------------------------- - /^-ddump-parser$/ && do { $Dump_parser_output = 1; next arg; }; + '-ffloat-inwards', - #---------- post-Haskell "assembler"------------------------------------ - /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; }; - /^-ddump-asm-insn-counts$/ && do { $Dump_asm_insn_counts = 1; next arg; }; - /^-ddump-asm-globals-info$/ && do { $Dump_asm_globals_info = 1; next arg; }; +# Case-liberation for -O2. This should be after +# strictness analysis and the simplification which follows it. - /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; }; +# ( ($OptLevel != 2) +# ? '' +# : "-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 $Oopt_MaxSimplifierIterations \\)" ), - #---------- Haskell compiler (hsc) ------------------------------------- +# Final clean-up simplification: -# possibly resurrect LATER -# /^-fspat-profiling$/ && do { push(@HsC_flags, '-fticky-ticky'); -# $ProduceS = ''; $ProduceC = 1; # must use C compiler -# push(@CcBoth_flags, '-DDO_SPAT_PROFILING'); -# push(@CcBoth_flags, '-fno-schedule-insns'); # not essential -# next arg; }; + '-fsimplify', + '\(', + $Oopt_FB_Support, + '-ffloat-lets-exposing-whnf', + '-ffloat-primops-ok', + '-fcase-of-case', + '-fdo-case-elim', + '-fcase-merge', +# '-fdo-eta-reduction', + '-fdo-lambda-eta-expansion', + '-freuse-con', + '-flet-to-case', + '-fignore-inline-pragma', # **** NB! + $Oopt_FoldrBuildInline, + ($Oopt_FoldrBuild) ? ('-fdo-foldr-build') : (), + # but still do reductions if you see them! + $Oopt_PedanticBottoms, + $Oopt_MonadEtaExpansion, + $Oopt_UnfoldingUseThreshold, + $Oopt_MaxSimplifierIterations, + '\)', - /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; }; - /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; }; + # '-fstatic-args', - /^-fhaskell-1\.3$/ && do { $haskell1_version = 3; - push(@HsP_flags, '-3'); - push(@HsC_flags, $_); - $TopClosureFile =~ s/TopClosureXXXX/TopClosure13XXXX/; - unshift(@SysImport_dir, - $(INSTALLING) - ? "$InstDataDirGhc/imports/haskell-1.3" - : "$TopPwd/$(CURRENT_DIR)/$(GHC_LIBSRC)/haskell-1.3"); +#LATER: '-fcalc-inlinings2', -- pointless for 2.01 - unshift(@SysLibrary, '-lHS13'); + # stg2stg passes + '-fupdate-analysis', + '-flambda-lift', + $Oopt_FinalStgProfilingMassage, + $Oopt_StgStats, - next arg; }; + # flags for stg2stg + '-flet-no-escape', - /^-fno-implicit-prelude$/ && do { push(@HsP_flags, '-P'); next arg; }; - /^-fignore-interface-pragmas$/ && do { push(@HsP_flags, '-p'); next arg; }; + # SPECIAL FLAGS for -O2 + ($OptLevel == 2) ? ( + '-fsemi-tagging', + ) : (), + ); - /^-prelude$/ && do { $CompilingPrelude = 1; - push(@HsC_flags, $_); next arg; }; +\end{code} - /^-split-objs(.*)/ && do { - local($sname) = &grab_arg_arg('-split-objs', $1); - $sname =~ s/ //g; # no spaces +Sort out what we're going to do about optimising. First, the @hsc@ +flags and regular @cc@ flags to worry about: +\begin{code} +if ( $OptLevel <= 0 ) { - if ( $TargetPlatform =~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|sparc)-/ ) { - $SplitObjFiles = 1; - push(@HsC_flags, "-fglobalise-toplev-names$sname"); - push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS'); + # for this level, we tell the parser -fignore-interface-pragmas + push(@HsC_flags, '-fignore-interface-pragmas'); + # and tell the compiler not to produce them + push(@HsC_flags, '-fomit-interface-pragmas'); - require('ghc-split.prl') - || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n"); - } else { - $SplitObjFiles = 0; - print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n"; - } - next arg; }; + &add_Hsc_flags( @HsC_minusNoO_flags ); + push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional! - /^-fglobalise-toplev-names$/&& do { push(@HsC_flags, $_); next arg; }; +} elsif ( $OptLevel == 1 || $OptLevel == 2 ) { - /^-f(hide-builtin-names|min-builtin-names)$/ - && do { push(@HsC_flags, $_); - push(@HsP_flags, '-P'); # don't read Prelude.hi - push(@HsP_flags, '-N'); # allow foo# names - next arg; }; - /^-f(glasgow-exts|hide-builtin-instances)$/ - && do { push(@HsC_flags, $_); - push(@HsP_flags, '-N'); + &add_Hsc_flags( @HsC_minusO_flags ); + push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional! + # -O? to GCC is not optional! -O2 probably isn't worth it generally, + # but it *is* useful in compiling the garbage collectors (so said + # Patrick many moons ago...). -# push(@HsC_flags, '-fshow-import-specs'); +} else { # -Ofile, then... - if ( ! $(INSTALLING) ) { - unshift(@SysImport_dir, - "$TopPwd/$(CURRENT_DIR)/$(GHC_LIBSRC)/glaExts"); - } - next arg; }; + &add_Hsc_flags( @HsC_minusO3_flags ); + push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated... +} - /^-fspecialise-unboxed$/ - && do { $Oopt_SpecialiseUnboxed = '-fspecialise-unboxed'; - next arg; }; +} # setupOptimiseFlags -# Now the foldr/build options, which are *on* by default (for -O). +\end{code} - /^-fno-foldr-build$/ - && do { $Oopt_FoldrBuild = 0; - $Oopt_FB_Support = ''; - next arg; }; +%************************************************************************ +%* * +\subsection{Check for consistency, etc.} +%* * +%************************************************************************ - /^-fno-foldr-build-rule$/ - && do { $Oopt_FoldrBuild = 0; - next arg; }; +Sort out @$BuildTag@, @$PROFing@, @$CONCURing@, @$PARing@, +@$GRANing@, @$TICKYing@: +\begin{code} +sub setupBuildFlags { + + + # PROFILING stuff after argv mangling: + if ( ! $PROFing ) { + # warn about any scc exprs found (in case scc used as identifier) + push(@HsP_flags, '-W'); + + # add -auto sccs even if not profiling ! + push(@HsC_flags, $UNPROFscc_auto) if $UNPROFscc_auto; + + } else { + push(@HsC_flags, $PROFauto) if $PROFauto; + push(@HsC_flags, $PROFcaf) if $PROFcaf; + #push(@HsC_flags, $PROFdict) if $PROFdict; + + $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling'; + + push(@HsP_flags, (($PROFignore_scc) ? $PROFignore_scc : '-S')); + + if ( $SplitObjFiles ) { + # can't split with cost centres -- would need global and externs + print STDERR "$Pgm: WARNING: splitting objects when profiling will *BREAK* if any _scc_s are present!\n"; + # (but it's fine if there aren't any _scc_s around...) +# $SplitObjFiles = 0; # unset + #not an error: for now: $Status++; + } + } + #if ( $BuildTag ne '' ) { + # local($b) = $BuildDescr{$BuildTag}; + # if ($CONCURing eq 'c') { print STDERR "$Pgm: Can't mix $b with -concurrent.\n"; exit 1; } + # if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; } + # if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; } + # if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; } + + # # ok to have a user-way profiling build + # # eval the profiling opts ... but leave user-way BuildTag + # if ($PROFing eq 'p') { &processArgs(split(' ', $SetupOpts{'_p'})); } # eval($EvaldSetupOpts{'_p'}); } + + if ( $PROFing eq 'p' ) { + if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; } + if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; } + if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; } + $BuildTag = ($CONCURing eq 'c') ? '_mr' : '_p' ; # possibly "profiled concurrent"... + + } elsif ( $CONCURing eq 'c' ) { + if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix -concurrent with -parallel.\n"; exit 1; } + if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -concurrent with -gransim.\n"; exit 1; } + $BuildTag = ($TICKYing eq 't') ? '_mt' : '_mc' ; # possibly "ticky concurrent"... + # "profiled concurrent" already acct'd for... + + } elsif ( $PARing eq 'p' ) { + if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; } + if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; } + $BuildTag = '_mp'; + + if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) { + print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n"; + exit(1); + } + + } elsif ( $GRANing eq 'g' ) { + if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; } + $BuildTag = '_mg'; + + } elsif ( $TICKYing eq 't' ) { + $BuildTag = '_t'; + } - /^-fno-enable-tech$/ - && do { $Oopt_FB_Support = ''; - next arg; }; +\end{code} -# /^-ffoldr-build-ww$/ -# && do { $Oopt_FoldrBuildWW = 1; next arg; }; +After the sanity checks, add flags to the necessary parts of the driver pipeline: +\begin{code} + if ( $BuildTag ne '' ) { # something other than normal sequential... - /^-fasm-(.*)$/ && do { $ProduceS = $1; $ProduceC = 0; # force using nativeGen - push(@HsC_flags, $_); # if from the command line - next arg; }; + local($Tag) = "${BuildTag}"; + $Tag =~ s/_//; # move the underscore to the back - /^-fvia-C$/ && do { $ProduceS = ''; $ProduceC = 1; # force using C compiler - next arg; }; + $HscOut = '-C='; # must go via C + &processArgs(split(' ', $SetupOpts{$BuildTag})); +# eval($EvaldSetupOpts{$BuildTag}); + } +\end{code} - /^-f(no-)?omit-frame-pointer$/ && do { - unshift(@CcBoth_flags, ( $_ )); - next arg; }; +Decide what the consistency-checking options are in force for this run: +\begin{code} - # --------------- + $HsC_consist_options = "${BuildTag},${DEBUGging}"; + $Cc_consist_options = "${BuildTag},${DEBUGging}"; + + # + # Funny place to put it, but why not. + # + if ( $HiSuffix_prelude eq '' ) { + local($Tag) = "${BuildTag}"; + $Tag =~ s/_//; + $Tag = "${Tag}_" if $Tag ne ''; + $HiSuffix_prelude="${Tag}hi"; + } + push(@HsC_flags, "-hisuf-prelude=.${HiSuffix_prelude}"); # use appropriate Prelude .hi files + push(@HsC_flags, "-hisuf=.${HiSuffix}"); + +} # setupBuildFlags +\end{code} - /^(-fsimpl-uf-use-threshold)(.*)$/ - && do { $Oopt_UnfoldingUseThreshold = $1 . &grab_arg_arg($1, $2); - next arg; }; +%************************************************************************ +%* * +\subsection{Add on machine-specific C-compiler flags} +%* * +%************************************************************************ - /^(-fmax-simplifier-iterations)(.*)$/ - && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg($1, $2); - next arg; }; +Shove on magical machine-specific options. We use \tr{unshift} to +stick them on the {\em front} of the arrays, so that ``later'' +user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}). - /^-fno-pedantic-bottoms$/ - && do { $Oopt_PedanticBottoms = ''; next arg; }; +Note: a few ``always apply'' flags were set at the very beginning. - /^-fdo-monad-eta-expansion$/ - && do { $Oopt_MonadEtaExpansion = $_; next arg; }; +\begin{code} +sub setupMachOpts { + + if ($TargetPlatform =~ /^alpha-/) { + # we know how to *mangle* asm for alpha + unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__')); + unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK; + unshift(@CcBoth_flags, ('-static')); + + } elsif ($TargetPlatform =~ /^hppa/) { + # we know how to *mangle* asm for hppa + unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__')); + unshift(@CcBoth_flags, ('-static')); + # + # We don't put in '-mlong-calls', because it's only + # needed for very big modules (sigh), and we don't want + # to hobble ourselves further on all the other modules + # (most of them). + # + # [Dated comment (gcc-2.6.x?), -mlong-calls is no longer + # a supported gcc HPPA flag] + unshift(@CcBoth_flags, ('-D_HPUX_SOURCE')); + # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi! + # (very nice, but too bad the HP /usr/include files don't agree.) - /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10) - && do { push(@HsC_flags, $_); next arg; }; + } elsif ($TargetPlatform =~ /^i386-/) { + # we know how to *mangle* asm for X86 + unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__')); + unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) + if $StkChkByPageFaultOK + && $TargetPlatform !~ /nextstep/; + # I do not know how to do STACK_CHECK_BY_PAGE_FAULT + # on NeXTs (my fault, not theirs), so I don't. + # CaS + + # -fno-defer-pop : basically the same game as for m68k + # + # -fomit-frame-pointer : *must* ; because we're stealing + # the fp (%ebp) for our register maps. *All* register + # maps (in MachRegs.lh) must steal it. + + unshift(@CcRegd_flags_hc, '-fno-defer-pop'); + unshift(@CcRegd_flags, '-fomit-frame-pointer'); + unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs"); + + } elsif ($TargetPlatform =~ /^m68k-/) { + # we know how to *mangle* asm for m68k + unshift (@CcRegd_flags, ('-D__STG_REV_TBLS__')); + unshift (@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) + if $StkChkByPageFaultOK + && $TargetPlatform !~ /nextstep/; + # I do not know how to do STACK_CHECK_BY_PAGE_FAULT + # on NeXTs (my fault, not theirs), so I don't. + # CaS + + # -fno-defer-pop : for the .hc files, we want all the pushing/ + # popping of args to routines to be explicit; if we let things + # be deferred 'til after an STGJUMP, imminent death is certain! + # + # -fomit-frame-pointer : *don't* + # It's better to have a6 completely tied up being a frame pointer + # rather than let GCC pick random things to do with it. + # (If we want to steal a6, then we would try to do things + # as on iX86, where we *do* steal the frame pointer [%ebp].) + + unshift(@CcRegd_flags_hc, '-fno-defer-pop'); + unshift(@CcRegd_flags, '-fno-omit-frame-pointer'); + # maybe gives reg alloc a better time + # also: -fno-defer-pop is not sufficiently well-behaved without it - /^(-freturn-in-regs-threshold)(.*)$/ - && do { local($what) = $1; - local($num) = &grab_arg_arg($what, $2); - if ($num < 2 || $num > 8) { - die "Bad experimental flag: $_\n"; - } else { - $ProduceS = ''; $ProduceC = 1; # force using C compiler - push(@HsC_flags, "$what$num"); - push(@CcRegd_flags, "-D__STG_REGS_AVAIL__=$num"); - } - next arg; }; + } elsif ($TargetPlatform =~ /^mips-/) { + # we (hope to) know how to *mangle* asm for MIPSen + unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__')); + unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK; + unshift(@CcBoth_flags, ('-static')); + + } elsif ($TargetPlatform =~ /^powerpc-/) { + # we know how to *mangle* asm for PowerPC + unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__')); + unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK; + unshift(@CcBoth_flags, ('-static')); # always easier to start with + unshift(@CcRegd_flags, ('-finhibit-size-directive')); # avoids traceback tables + + } elsif ($TargetPlatform =~ /^sparc-/) { + # we know how to *mangle* asm for SPARC + unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__')); + unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK; + + } +} # end of setupMachOpts +\end{code} -# /^-flambda-lift$/ # so Simon can do some testing; ToDo:rm -# && do { $Oopt_LambdaLift = $_; next arg; }; +Same unshifting magic, but for special linker flags. - # --------------- +The configure script determines whether the object file symbol tables +have a leading underscore, and sets @LeadingUnderscore@ accordingly. +(The driver script `sees' the setting of the @LeadingUnderscore@ +by having the Makefile prepend it). - /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1"); - &squashHscFlag("-f$1"); - next arg; }; +\begin{code} +sub setupLinkOpts { + local($uscore) = ( ${LeadingUnderscore} eq 'YES' ) ? '_' : ''; + + unshift(@Ld_flags, + (($Ld_main) ? ( + '-u', "${uscore}Main_" . $Ld_main . '_closure', + ) : () +# What are these? -- SOF +# , '-u', "${uscore}STbase_unsafePerformPrimIO_fast1" +# , '-u', "${uscore}Prelude_Z91Z93_closure" # i.e., [] +# , '-u', "${uscore}Prelude_IZh_static_info" +# , '-u', "${uscore}Prelude_False_inregs_info" +# , '-u', "${uscore}Prelude_True_inregs_info" +# , '-u', "${uscore}Prelude_CZh_static_info" +# , '-u', "${uscore}DEBUG_REGS" + )) + ; # just for fun, now... + +} # end of setupLinkOpts - /^-f/ && do { push(@HsC_flags, $_); next arg; }; +\end{code} - # --------------- - - /^-mlong-calls$/ && do { # for GCC for HP-PA boxes - unshift(@CcBoth_flags, ( $_ )); - next arg; }; - - /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/ - && do { # for GCC for SPARCs - unshift(@CcBoth_flags, ( $_ )); - next arg; }; +%************************************************************************ +%* * +\subsection{Set up include paths and system-library enslurpment} +%* * +%************************************************************************ - /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise - $StolenX86Regs = $1; - next arg; }; +Now that we know what garbage-collector, etc., are required, we can +finalise our list of libraries to slurp through, and generally Get +Ready for Business. - /^-mtoggle-sp-mangling/ && do { # for iX86 boxes only; for RTS only - print STDERR "$Pgm: warning: -mtoggle-sp-mangling is no longer supported\n"; -# $SpX86Mangling = 1 - $SpX86Mangling; - next arg; }; +\begin{code} +sub setupIncPaths { + # default includes must be added AFTER option processing + if ( ! $INSTALLING ) { + push (@Include_dir, "$TopPwd/${CURRENT_DIR}/${GHC_INCLUDE_DIR}"); + } else { + push (@Include_dir, "$InstLibDirGhc/includes"); + push (@Include_dir, "$InstLibDirGhc/includes"); + } +} # end of setupIncPaths +\end{code} - #*************** ... and lots of debugging ones (form: -d* ) +\begin{code} +sub setupSyslibs { + push(@SysLibrary, ( '-lHS', '-lHS_cbits' )); # basic I/O and prelude stuff + + local($f); + foreach $f (@SysLibrary) { + next if $f =~ /_cbits/; + $f .= $BuildTag if $f =~ /^-lHS/; + } + + # fiddle the TopClosure file name... + $TopClosureFile =~ s/XXXX//; + + # Push library HSrts, plus boring clib bit + push(@SysLibrary, "-lHSrts${BuildTag}"); + push(@SysLibrary, '-lHSclib'); + # + # RTS compiled with cygwin32, uses the WinMM API + # to implement the itimers, since cygwin.dll does not + # support it. Only reqd. for `ways' that use itimers. + # + push(@SysLibrary, '-lwinmm') if $BuildTag ne '' && $TargetPlatform eq 'i386-unknown-cygwin32'; + + # Push the pvm libraries + if ($BuildTag eq '_mp') { + $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}"; + push(@SysLibrary, "-L$pvmlib", '-lpvm3', '-lgpvm3'); + if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) { + push(@SysLibrary, '-lthread', '-lsocket', '-lnsl'); + } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) { + push(@SysLibrary, '-lsocket', '-lnsl'); + } + } - /^-darity-checks$/ && do { - push(@HsC_flags, $_); - push(@CcBoth_flags, '-D__DO_ARITY_CHKS__'); - next arg; }; - /^-darity-checks-C-only$/ && do { - # so we'll have arity-checkable .hc files - # should we decide we need them later... - push(@HsC_flags, '-darity-checks'); - next arg; }; - /^-dno-stk-checks$/ && do { - push(@HsC_flags, '-dno-stk-chks'); - push(@CcBoth_flags, '-D__OMIT_STK_CHKS__'); - next arg; }; +# Push the GNU multi-precision arith lib; and the math library +push(@SysLibrary, '-lgmp'); +push(@SysLibrary, '-lm'); +\end{code} - # -d(no-)core-lint is done this way so it is turn-off-able. - /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; }; - /^-dno-core-lint/ && do { $CoreLint = ''; next arg; }; +%************************************************************************ +%* * +\subsection{Check that this system was built to do what we are asking} +%* * +%************************************************************************ - /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; }; - /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; }; - /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; }; - /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; }; +Before continuing we check that the appropriate build is available. - #*************** ... and now all these -R* ones for its runtime system... +\begin{code} +#die "$Pgm: no BuildAvail?? $BuildTag\n" if $BuildDescr{$BuildTag} eq '' ; # sanity - /^-Rhbc$/ && do { $RTS_style = 'hbc'; next arg; }; - /^-Rghc$/ && do { $RTS_style = 'ghc'; next arg; }; +if ( $BuildDescr{$BuildTag} eq '' ) { + print STDERR "$Pgm: a `", $BuildDescr{$BuildTag}, + "' \"build\" is not available with your GHC setup.\n"; + print STDERR "(It was not configured for it at your site.)\n"; + print STDERR $ShortUsage; + exit 1; +} - /^-Rscale-sizes?(.*)/ && do { - $Scale_sizes_by = &grab_arg_arg('-Rscale-sizes', $1); - next arg; }; +} # end of setupSyslibs - /^(-H|-Rmax-heapsize)(.*)/ && do { - local($heap_size) = &grab_arg_arg($1, $2); - if ($heap_size =~ /(\d+)[Kk]$/) { - $heap_size = $1 * 1000; - } elsif ($heap_size =~ /(\d+)[Mm]$/) { - $heap_size = $1 * 1000 * 1000; - } elsif ($heap_size =~ /(\d+)[Gg]$/) { - $heap_size = $1 * 1000 * 1000 * 1000; - } - if ($heap_size <= 0) { - print STDERR "$Pgm: resetting heap-size to zero!!!\n"; - $Specific_heap_size = 0; - } - # if several heap sizes given, take the largest... - if ($heap_size >= $Specific_heap_size) { - $Specific_heap_size = $heap_size; - } else { - print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n"; - } - next arg; }; +\end{code} - /^-(K|Rmax-(stk|stack)size)(.*)/ && do { - local($stk_size) = &grab_arg_arg('-Rmax-stksize', $3); - if ($stk_size =~ /(\d+)[Kk]$/) { - $stk_size = $1 * 1000; - } elsif ($stk_size =~ /(\d+)[Mm]$/) { - $stk_size = $1 * 1000 * 1000; - } elsif ($stk_size =~ /(\d+)[Gg]$/) { - $stk_size = $1 * 1000 * 1000 * 1000; - } - if ($stk_size <= 0) { - print STDERR "$Pgm: resetting stack-size to zero!!!\n"; - $Specific_stk_size = 0; - } - # if several stack sizes given, take the largest... - if ($stk_size >= $Specific_stk_size) { - $Specific_stk_size = $stk_size; - } else { - print STDERR "$Pgm: ignoring stack-size-setting option (-Rmax-stksize $stk_size)...not the largest seen\n"; - } - next arg; }; +%************************************************************************ +%* * +\subsection{Final miscellaneous setup bits before we start going} +%* * +%************************************************************************ - /^-Rgc-stats$/ && do { $CollectingGCstats++; - # the two RTSs do this diff ways; we will try to compensate - next arg; }; +Record largest specific heapsize, if any. +\begin{code} +sub setupHeapStackSize { + $Specific_heap_size = $Specific_heap_size * $Scale_sizes_by; + push(@HsC_rts_flags, '-H'.$Specific_heap_size); + $Specific_stk_size = $Specific_stk_size * $Scale_sizes_by; + push(@HsC_rts_flags, "-K$Specific_stk_size"); +} +\end{code} - /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; }; +If no input or link files seen, then we let 'em feed in stdin; this is +mainly for debugging. - #---------- C high-level assembler (gcc) ------------------------------- -# OLD: and dangerous -# /^-g$/ && do { push(@CcBoth_flags, $_); next arg; }; -# /^-(p|pg)$/ && do { push(@CcBoth_flags, $_); push(@Ld_flags, $_); next arg; }; -# /^-(fpic|fPIC)$/ && do { push(@CcBoth_flags, $_); push(@As_flags, $_); next arg; }; +\begin{code} - /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; }; +if ($#Input_file < 0 && $#Link_file < 0) { + @Input_file = ( '-' ); - # -dgcc-lint is a useful way of making GCC very fussy. - # From alan@spri.levels.unisa.edu.au (Alan Modra). - /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; }; - # An alternate set, from mark@sgcs.com (Mark W. Snitily) - # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow + open(INF, "> $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n"); + print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n"; + while (<>) { print INF $_; } + close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n"); +} - # inject "#include " into the compiler's C output! +\end{code} - /^-#include(.*)/ && do { - local($to_include) = &grab_arg_arg('-#include', $1); - push(@CcInjects, "#include $to_include\n"); - next arg; }; +Tell the world who we are, if they asked. +\begin{code} +print STDERR "${PROJECTNAME}, version ${PROJECTVERSION}, patchlevel ${PROJECTPATCHLEVEL}\n" + if $Verbose; +\end{code} - #---------- Linker (gcc, really) --------------------------------------- +%************************************************************************ +%* * +\section[Driver-main-loop]{Main loop: Process input files, and link if required} +%* * +%************************************************************************ - /^-static$/ && do { push(@Ld_flags, $_); next arg; }; +Process the input files; don't continue with linking if there are +problems (global variable @$Status@ non-zero). +\begin{code} +foreach $ifile (@Input_file) { + &ProcessInputFile($ifile); +} - #---------- mixed cc and linker magic ---------------------------------- - # this optimisation stuff is finally sorted out later on... +if ( $Status > 0 ) { # don't link if there were errors... + print STDERR $ShortUsage; + &tidy_up(); + exit $Status; +} -# /^-O0$/ && do { # turn all optimisation *OFF* -# $OptLevel = -1; -# $ProduceS = ''; $ProduceC = 1; # force use of C compiler -# next arg; }; +# append last minute flags linker and consistency flags +&setupBuildFlags(); +&setupSyslibs(); +&setupLinkOpts(); - /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; }; +\end{code} - /^-O[1-2]?$/ && do { - local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em - $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel; +Link if appropriate. +\begin{code} +if ($Do_lnkr) { + local($libdirs) = ''; - if ( $OptLevel == 2 ) { # force use of C compiler - $ProduceS = ''; $ProduceC = 1; - } - next arg; }; + # glue them together: + push(@UserLibrary_dir, @SysLibrary_dir); - /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to + $libdirs = '-L' . join(' -L',@UserLibrary_dir) if $#UserLibrary_dir >= 0; - /^-Ofile(.*)/ && do { - $OptLevel = 3; - local($ofile) = &grab_arg_arg('-Ofile', $1); - @HsC_minusO3_flags = (); + # for a linker, use an explicitly given one, or the going C compiler ... + local($lnkr) = ( $Lnkr ) ? $Lnkr : $CcRegd; - open(OFILE, "< $ofile") || die "Can't open $ofile!\n"; - while () { - chop; - s/\#.*//; # death to comments - s/[ \t]+//g; # death to whitespace - next if /^$/; # ditto, blank lines - s/([()*{}])/\\$1/g; # protect shell metacharacters - if ( /^C:(.*)/ ) { - push(@CcBoth_flags, $1); - } else { - push(@HsC_minusO3_flags, $_); - } - } - close(OFILE); - next arg; }; + local($output) = ($Specific_output_file ne '') ? "-o $Specific_output_file" : ''; + @Files_to_tidy = ($Specific_output_file ne '') ? $Specific_output_file : 'a.out'; - /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging" - # in the consistency info - $DEBUGging = 'd'; - next arg; }; + local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $TopClosureFile $libdirs @UserLibrary @SysLibrary"; + &run_something($to_do, 'Linker'); - #---------- catch unrecognized flags ----------------------------------- + # finally, check the consistency info in the binary + local($executable) = $Files_to_tidy[0]; + @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent - /^-./ && do { - print STDERR "$Pgm: unrecognised option: $_\n"; - $Status++; - next arg; }; + if ( $LinkChk ) { + # dynamically load consistency-chking code; then do it. + require('ghc-consist.prl') + || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n"); - #---------- anything else is considered an input file ------------------ - # (well, .o files are immediately queued up as linker fodder..) - if (/\.o$/) { - push(@Link_file, $_); - } else { - push(@Input_file, $_); + &chk_consistency_info ( $executable ); } - # input files must exist: - if (! -f $_) { - print STDERR "$Pgm: input file doesn't exist: $_\n"; - $Status++; - } -} + # if PVM parallel stuff, we do truly weird things. + # Essentially: (1) move the executable over to where PVM expects + # to find it. (2) create a script in place of the executable + # which will cause the program to be run, via SysMan. + if ( $PARing eq 'p' ) { + local($pvm_executable) = $executable; + local($pvm_executable_base); -# if there are several input files, -# we don't allow \tr{-o } or \tr{-ohi } options... -# (except if linking, of course) + if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute + local($pwd) = `pwd`; + chop($pwd); + $pwd =~ s/^\/tmp_mnt//; + $pvm_executable = "$pwd/$pvm_executable"; + } -if ($#Input_file > 0 && ( ! $Do_lnkr )) { - if ( ($Specific_output_file ne '' && $Specific_output_file ne '-') - || ($Specific_hi_file ne '' && $Specific_hi_file ne '-') ) { - print STDERR "$Pgm: You can't use -o or -ohi options if you have multiple input files.\n"; - print STDERR "\tPerhaps the -odir option will do what you want.\n"; - $Status++; - } -} + $pvm_executable =~ s|/|=|g; # make /s into =s + $pvm_executable_base = $pvm_executable; -# check for various pathological -o and -odir combinations... -if ($Specific_output_dir ne '' && $Specific_output_file ne '') { - if ($Specific_output_file eq '-') { - print STDERR "$Pgm: can't set output directory with -ohi AND have output to stdout\n"; - $Status++; - } else { # amalgamate... - $Specific_output_file = "$Specific_output_dir/$Specific_output_file"; - # ToDo: check we haven't got a junk name now... - $Specific_output_dir = ''; # reset - } -} + $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'} + . "/$pvm_executable"; -# PROFILING stuff after argv mangling: -if ( ! $PROFing ) { - # warn about any scc exprs found (in case scc used as identifier) - push(@HsP_flags, '-W'); -} else { - $Oopt_AddAutoSccs = '-fadd-auto-sccs' if $PROFauto; - $Oopt_FinalStgProfilingMassage = '-fmassage-stg-for-profiling'; + &run_something("$Rm -f $pvm_executable; $Cp -p $executable $pvm_executable && $Rm -f $executable", 'Moving binary to PVM land'); - push(@HsC_flags, $PROFauto) if $PROFauto; - push(@HsC_flags, $PROFcaf) if $PROFcaf; -#UNUSED: push(@HsC_flags, $PROFdict) if $PROFdict; + # OK, now create the magic script for "$executable" + open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n"); + print EXEC < 0 ) { - print STDERR $ShortUsage; - exit $Status; +local($return_val) = 0; +system("$SysMan $debug $pvm_executable $nprocessors @nonPVM_args"); +$return_val = $?; +system("mv $ENV{'HOME'}/$pvm_executable_base.???.gr .") if -f "$ENV{'HOME'}/$pvm_executable_base.001.gr"; +exit($return_val); +EOSCRIPT2 + close(EXEC) || die "Failed closing $executable\n"; + chmod 0755, $executable; + } } + +# that... that's all, folks! +&tidy_up(); +exit $Status; # will still be 0 if all went well \end{code} %************************************************************************ %* * -\section[Driver-post-argv-mangling]{Setup after reading options} +\section[Driver-do-one-file]{How to process a single input file} %* * %************************************************************************ -%************************************************************************ -%* * -\subsection{Set up for optimisation level (\tr{-O} or whatever)} -%* * -%************************************************************************ +\begin{code} +sub ProcessInputFile { + local($ifile) = @_; # input file name + local($ifile_root); # root of or basename of input file + local($ofile_target); # ultimate output file we hope to produce + # from input file (need to know for recomp + # checking purposes) + local($hifile_target);# ditto (but .hi file) +\end{code} -We come now to the default ``wads of options'' that are turned on by -\tr{-O0} (do min optimisation), \tr{-O} (ordinary optimisation), -\tr{-O2} (aggressive optimisation), or no O-ish flag (compile speed is -more important). +Handle the weirdity of input from stdin. +\begin{code} + if ($ifile ne '-') { + ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//; + $ofile_target = # may be reset later... + ($Specific_output_file ne '' && ! $Do_lnkr) + ? $Specific_output_file + : &odir_ify($ifile_root, 'o'); + $hifile_target= ($Specific_hi_file ne '') + ? $Specific_hi_file + : "$ifile_root.$HiSuffix"; # ToDo: odirify? + # NB: may change if $ifile_root isn't module name (??) + } else { + $ifile = "$Tmp_prefix.hs"; # we know that's where we put the input + $ifile_root = '_stdin'; + $ofile_target = '_stdout'; # gratuitous? + $hifile_target= '_stdout'; # ditto? + } +\end{code} -The user can also specify his/her own list of options in a file; in -that case, the work is already done (see stuff about @minusO3@, -earlier...). +We need to decide what phases of the compilation system we will run +over this file. The defaults are the ones established when processing +flags. (That established what the last phase run for all files is.) -GHC allows very precise control of what happens during a compilation. -Core-to-Core and STG-to-STG passes can be run in any order, as many -times as you like. Individual transformations can be turned on or -disabled. +We do the pre-recompilation-checker phases here; the rest later. +\begin{code} +\end{code} -Sadly, however, there are some interdependencies \& Things You Must -Not Do. Here is the list. +Look at the suffix and decide what initial phases of compilation may +be dropped off for this file. Also the rather boring business of +which files are coming-in/going-out. -CORE-TO-CORE PASSES: -\begin{description} -\item[\tr{-fspecialise}:] -The specialiser must have dependency-analysed input; but if you run -the simplifier to do this, you must not let it toss away unused -bindings! (The typechecker conveys some specialisation info via -``unused'' bindings...) +Again, we'll do the post-recompilation-checker parts of this later. +\begin{code} + local($do_lit2pgm) = ($ifile =~ /\.lhs$/) ? 1 : 0; + local($do_hscpp) = 1; # but "hscpp" might really be "cat" + local($do_hsc) = 1; -\item[\tr{-ffloat-inwards}:] -Floating inwards should be done before strictness analysis, because -the latter will give better results. + # names of the files to stuff between phases + # defaults are temporaries + local($in_lit2pgm) = $ifile; + local($lit2pgm_hscpp) = "$Tmp_prefix.lpp"; + local($hscpp_hsc) = "$Tmp_prefix.cpp"; + local($hsc_hi) = "$Tmp_prefix.hi"; + local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C + local($cc_as) = "$Tmp_prefix.s"; # mangled or hsc-produced .s code + local($as_out) = $ofile_target; -\item[\tr{-fstatic-args}:] -The static-arguments-transformation pass {\em must} have the -simplifier run right after it. + local($is_hc_file) = 1; #Is the C code .hc or .c? Assume .hc for now -\item[\tr{-fcalc-inlinings[12]}:] -Not required, but there may be slight gains by re-simplifying after -this is done. (You could then \tr{-fcalc-inlinings} again, just for -fun.) + $lit2pgm_hscpp = $ifile if ($ifile =~ /\.hs$/); -\item[\tr{-ffull-laziness}:] -The (outwards-)let-floater should be the {\em last} Core-to-Core pass -that's run. (Um, well, howzabout the simplifier just once more...) -\end{description} + # OK, let's strip off some literate junk: + &runLit2pgm($in_lit2pgm, $lit2pgm_hscpp) if ($ifile =~ /\.lhs$/); + # + @File_options = (); + + # Scan the top of the de-litted file for {-# OPTIONS #-} pragmas + &check_for_source_options($lit2pgm_hscpp); + # options found in the source file take a back seat, i.e., we scan + # them first. Only process the command line again if source file + # contained anything of interest *or* there's more than one + # input file (we have to reset the options). + # + if ( $#Input_file >= 0 || $#File_options >= 0) { + @File_options = (@File_options, @Cmd_opts); -STG-TO-STG PASSES: -\begin{description} -\item[\tr{-fupdate-analysis}:] -It really really wants to be the last STG-to-STG pass that is run. -\end{description} + # Now process the command line + &initDriverGlobals(); + &processArgs(@File_options); + } + # + # Having got the effective command line scanned, set up + # the various options in prep for some real work. + # + # check the sanity of the BuildTag we're about to use, + # and if needs be, add some more flags and setup to + # the different phases. + # + &setupBuildFlags(); + &setupOptimiseFlags(); + &setupMachOpts(); + &setupIncPaths(); + &setupHeapStackSize(); -\begin{code} -# OLD: -#@HsC_minusO0_flags -# = ( $Oopt_AddAutoSccs, -# '-fsimplify', # would rather *not* run the simplifier (ToDo) -# '\(', '\)', # nothing special at all ???? -# -# $Oopt_FinalStgProfilingMassage -# ); + # + # These two variables need to be set after the + # command-line has been processed and the build options + # have be seen set up. This is because command-line options + # can control whether to compile vias C or not. + # + local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly + ? $Do_cc + : ( ($HscOut eq '-C=') ? 1 : 0 ); + local($do_as) = $Do_as; + local($hsc_out) = ( $HscOut eq '-C=' ) ? "$Tmp_prefix.hc" : "$Tmp_prefix.s" ; -@HsC_minusNoO_flags - = ( '-fsimplify', - '\(', - "$Oopt_FB_Support", -# '-falways-float-lets-from-lets', # no idea why this was here (WDP 95/09) - '-ffloat-lets-exposing-whnf', - '-ffloat-primops-ok', - '-fcase-of-case', -# '-fdo-lambda-eta-expansion', # too complicated - '-freuse-con', -# '-flet-to-case', # no strictness analysis, so... - "$Oopt_PedanticBottoms", -# "$Oopt_MonadEtaExpansion", # no thanks - '-fsimpl-uf-use-threshold0', - '-fessential-unfoldings-only', -# "$Oopt_UnfoldingUseThreshold", # no thanks - "$Oopt_MaxSimplifierIterations", - '\)', - $Oopt_AddAutoSccs, -# '-ffull-laziness', # removed 95/04 WDP following Andr\'e's lead - '-fuse-get-mentioned-vars', # for the renamer - - $Oopt_FinalStgProfilingMassage - ); + if ($ifile =~ /.lhs$/ || $ifile =~ /.hs$/ ) { + ; + } elsif ($ifile =~ /\.hc$/ || $ifile =~ /_hc$/ ) { # || $ifile =~ /\.$Isuffix$/o) # ToDo: better + $do_hscpp = 0; $do_hsc = 0; $do_cc = 1; + $hsc_out = $ifile; + } elsif ($ifile =~ /\.c$/) { + $do_hscpp = 0; $do_hsc = 0; $do_cc = 1; + $hsc_out = $ifile; $is_hc_file = 0; + } elsif ($ifile =~ /\.s$/) { + $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; + $cc_as = $ifile; + } else { # don't know what it is, but nothing to do herein... + $do_hscpp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0; + } -@HsC_minusO_flags # NOTE: used for *both* -O and -O2 (some conditional bits) - = ( - # core2core passes - # initial simplify: mk specialiser happy: minimum effort please - '-fsimplify', - '\(', - "$Oopt_FB_Support", - '-fkeep-spec-pragma-ids', - '-fsimpl-uf-use-threshold0', - '-fessential-unfoldings-only', - '-fmax-simplifier-iterations1', - "$Oopt_PedanticBottoms", - '\)', + # hack to avoid running hscpp + $HsCpp = $Cat if ! $Cpp_flag_set; - $Oopt_AddAutoSccs, # dangerous to do with *no* simplification... + &runHscpp($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) + if $do_hscpp; +\end{code} - '-fspecialise-overloaded', - $Oopt_SpecialiseUnboxed, - '-fspecialise', +We now think about whether to run hsc/cc or not (when hsc produces .s +stuff, it effectively takes the place of both phases). - '-fsimplify', # need tossing before calc-i... - '\(', - "$Oopt_FB_Support", - '-ffloat-lets-exposing-whnf', - '-ffloat-primops-ok', - '-fcase-of-case', - '-fdo-case-elim', - '-fdo-eta-reduction', - '-fdo-lambda-eta-expansion', - '-freuse-con', -# '-flet-to-case', # no point, before strictness analysis - "$Oopt_PedanticBottoms", - "$Oopt_MonadEtaExpansion", - "$Oopt_UnfoldingUseThreshold", - "$Oopt_MaxSimplifierIterations", - '\)', +To get the output file name right: for each phase that we are {\em +not} going to run, set its input (i.e., the output of its preceding +phase) to @"$ifile_root."@. +\begin{code} + local($going_interactive) = $HscOut eq '-N=' || $ifile_root eq '_stdin'; - '-fcalc-inlinings1', + # + # Warning issued if -keep-hc-file-too is used without + # -fvia-C (or the equivalent) + # + if ( $HscOut ne '-C=' && $Keep_hc_file_too ) { + print STDERR "Warning: Native code generator to be used, -keep-hc-file-too will be ignored\n"; + } -# ($Oopt_FoldrBuildWW) ? ( -# '-ffoldr-build-ww-anal', -# '-ffoldr-build-worker-wrapper', -# '-fsimplify', -# '\(', -# "$Oopt_FB_Support", -# '-ffloat-lets-exposing-whnf', -# '-ffloat-primops-ok', -# '-fcase-of-case', -# '-fdo-case-elim', -# '-fdo-eta-reduction', -# '-fdo-lambda-eta-expansion', -# '-freuse-con', -## '-flet-to-case', # no point, before strictness analysis -# "$Oopt_PedanticBottoms", -# "$Oopt_MonadEtaExpansion", -# "$Oopt_UnfoldingUseThreshold", -# "$Oopt_MaxSimplifierIterations", -# '\)', -# ) : (), + if (! $do_cc && ! $do_as) { # stopping after hsc + $hsc_out = ($Specific_output_file ne '') + ? $Specific_output_file + : &odir_ify($ifile_root, ($HscOut eq '-C=') ? 'hc' : 's'); - # this pass-ordering sequence was agreed by Simon and Andr\'e - # (WDP 94/07, 94/11). - '-ffull-laziness', + $ofile_target = $hsc_out; # reset + } - ($Oopt_FoldrBuild) ? ( - '-fsimplify', - '\(', - '-fignore-inline-pragma', # **** NB! - '-fdo-foldr-build', # NB - "$Oopt_FB_Support", - '-ffloat-lets-exposing-whnf', - '-ffloat-primops-ok', - '-fcase-of-case', - '-fdo-case-elim', - '-fdo-eta-reduction', - '-fdo-lambda-eta-expansion', - '-freuse-con', - # '-flet-to-case', # no point, before strictness analysis - "$Oopt_PedanticBottoms", - "$Oopt_MonadEtaExpansion", - "$Oopt_UnfoldingUseThreshold", - "$Oopt_MaxSimplifierIterations", - '\)', - ) : (), + if (! $do_as) { # stopping after gcc (or hsc) + $cc_as = ($Specific_output_file ne '') + ? $Specific_output_file + : &odir_ify($ifile_root, ( $Only_preprocess_C ) ? 'i' : 's'); - '-ffloat-inwards', + $ofile_target = $cc_as; # reset + } - '-fsimplify', - '\(', - "$Oopt_FB_Support", - '-ffloat-lets-exposing-whnf', - '-ffloat-primops-ok', - '-fcase-of-case', - '-fdo-case-elim', - '-fdo-eta-reduction', - '-fdo-lambda-eta-expansion', - '-freuse-con', -# '-flet-to-case', # no point, before strictness analysis - '-fdo-inline-foldr-build', - # you need to inline foldr! - "$Oopt_PedanticBottoms", - "$Oopt_MonadEtaExpansion", - "$Oopt_UnfoldingUseThreshold", - "$Oopt_MaxSimplifierIterations", - '\)', +\end{code} - '-fstrictness', - '-fsimplify', - '\(', - "$Oopt_FB_Support", - '-ffloat-lets-exposing-whnf', - '-ffloat-primops-ok', - '-fcase-of-case', - '-fdo-case-elim', - '-fdo-eta-reduction', - '-fdo-lambda-eta-expansion', - '-freuse-con', - '-flet-to-case', # Aha! - "$Oopt_PedanticBottoms", - "$Oopt_MonadEtaExpansion", - "$Oopt_UnfoldingUseThreshold", - "$Oopt_MaxSimplifierIterations", - '\)', +Now the Haskell compiler, C compiler, and assembler - '-ffloat-inwards', +\begin{code} + if ($do_hsc) { + &runHscAndProcessInterfaces( $ifile, $hscpp_hsc, $ifile_root, + $ofile_target, $hifile_target); + } -# Case-liberation for -O2. This should be after -# strictness analysis and the simplification which follows it. + if ($do_cc) { + &runGcc ($is_hc_file, $hsc_out, $cc_as_o); + &runMangler($is_hc_file, $cc_as_o, $cc_as, $ifile_root); + } -# ( ($OptLevel != 2) -# ? '' -# : "-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 $Oopt_MaxSimplifierIterations \\)" ), + &split_asm_file($cc_as) if $do_as && $SplitObjFiles; -# Final clean-up simplification: + &runAs($as_out, $ifile_root) if $do_as; +\end{code} - '-fsimplify', - '\(', - "$Oopt_FB_Support", - '-ffloat-lets-exposing-whnf', - '-ffloat-primops-ok', - '-fcase-of-case', - '-fdo-case-elim', - '-fdo-eta-reduction', - '-fdo-lambda-eta-expansion', - '-freuse-con', - '-flet-to-case', - '-fignore-inline-pragma', # **** NB! - '-fdo-inline-foldr-build', # NB - "$Oopt_PedanticBottoms", - "$Oopt_MonadEtaExpansion", - "$Oopt_UnfoldingUseThreshold", - "$Oopt_MaxSimplifierIterations", - '\)', +Finally, decide what to queue up for linker input. +\begin{code} + # tentatively assume we will eventually produce linker input: + push(@Link_file, &odir_ify($ifile_root, 'o')); -# '-fstatic-args', - '-fcalc-inlinings2', +#ToDo: local($or_isuf) = ($Isuffix eq '') ? '' : "|$Isuffix"; - # stg2stg passes - '-fupdate-analysis', - '-flambda-lift', - $Oopt_FinalStgProfilingMassage, - $Oopt_StgStats, + if ( $ifile !~ /\.(lhs|hs|hc|c|s)$/ && $ifile !~ /_hc$/ ) { + print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n" + if $ifile !~ /\.a$/; - # flags for stg2stg - '-flet-no-escape', + # oops; we tentatively pushed the wrong thing; fix & do the right thing + pop(@Link_file); push(@Link_file, $ifile); + } - # how do we desugar list comprehensions ? - (($Oopt_FoldrBuild) ? '-ffoldr-build-on' : '' ), - # SPECIAL FLAGS for -O2 - (($OptLevel == 2) ? '-fsemi-tagging' : '') - ); +} # end of ProcessInputFile \end{code} -Sort out what we're going to do about optimising. First, the @hsc@ -flags and regular @cc@ flags to worry about: -\begin{code} -#if ( $OptLevel < 0 ) { +%************************************************************************ +%* * +\section[Driver-run-phases]{Routines to run the various phases} +%* * +%************************************************************************ -# &add_Hsc_flags( @HsC_minusO0_flags ); +\begin{code} +sub runLit2pgm { + local($in_lit2pgm, $lit2pgm_hscpp) = @_; -if ( $OptLevel <= 0 ) { + local($to_do) = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp && ". + "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp"; + @Files_to_tidy = ( $lit2pgm_hscpp ); - # for this level, we tell the parser -fignore-interface-pragmas - push(@HsP_flags, '-p'); - # and tell the compiler not to produce them - push(@HsC_flags, '-fomit-interface-pragmas'); + &run_something($to_do, 'literate pre-processor'); +} +\end{code} - &add_Hsc_flags( @HsC_minusNoO_flags ); - push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # not optional! +\begin{code} +sub runHscpp { + local($in_lit2pgm, $lit2pgm_hscpp, $hscpp_hsc) = @_; -} elsif ( $OptLevel == 1 || $OptLevel == 2 ) { + local($to_do); - &add_Hsc_flags( @HsC_minusO_flags ); - push(@CcBoth_flags, ($MinusO2ForC || $OptLevel == 2) ? '-O2' : '-O'); # not optional! - # -O? to GCC is not optional! -O2 probably isn't worth it generally, - # but it *is* useful in compiling the garbage collectors (so said - # Patrick many moons ago...). - -} else { # -Ofile, then... - - &add_Hsc_flags( @HsC_minusO3_flags ); - push(@CcBoth_flags, ($MinusO2ForC) ? '-O2' : '-O'); # possibly to be elaborated... + if ($HsCpp eq $Cat) { + $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $hscpp_hsc && ". + "$HsCpp $lit2pgm_hscpp >> $hscpp_hsc"; + @Files_to_tidy = ( $hscpp_hsc ); + &run_something($to_do, 'Ineffective C pre-processor'); + } else { + local($includes) = '-I' . join(' -I',@Include_dir); + $to_do = "echo '#line 1 \"$in_lit2pgm\"' > $hscpp_hsc && ". + "$HsCpp $Verbose $genSPECS_flag @HsCpp_flags -D__HASKELL1__=$Haskell1Version -D__GLASGOW_HASKELL__=$GhcVersionInfo $includes $lit2pgm_hscpp >> $hscpp_hsc"; + @Files_to_tidy = ( $hscpp_hsc ); + &run_something($to_do, 'Haskellised C pre-processor'); + } } \end{code} -%************************************************************************ -%* * -\subsection{Check for registerising, consistency, etc.} -%* * -%************************************************************************ - -Are we capable of generating ``registerisable'' C (either using -C or via equivalent native code)? \begin{code} -$RegisteriseC = ( $GccAvailable - && $RegisteriseC ne 'no' # not explicitly *un*set... - && ($TargetPlatform =~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|sparc)-/) - ) ? 'o' : ''; -\end{code} +sub runHscAndProcessInterfaces { + local($ifile, $hscpp_hsc, $ifile_root, $ofile_target, $hifile_target) = @_; + + # $ifile is the original input file + # $hscpp_hsc post-unlit, post-cpp, etc., input file + # $ifile_root input filename minus suffix + # $ofile_target the output file that we ultimately hope to produce + # $hifile_target the .hi file ... (ditto) + + local($source_unchanged) = 1; -Sort out @$BuildTag@, @$PROFing@, @$CONCURing@, @$PARing@, -@$GRANing@, @$TICKYing@: -\begin{code} -if ( $BuildTag ne '' ) { - local($b) = $BuildDescr{$BuildTag}; - if ($PROFing eq 'p') { print STDERR "$Pgm: Can't mix $b with profiling.\n"; exit 1; } - if ($CONCURing eq 'c') { print STDERR "$Pgm: Can't mix $b with -concurrent.\n"; exit 1; } - if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix $b with -parallel.\n"; exit 1; } - if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix $b with -gransim.\n"; exit 1; } - if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix $b with -ticky.\n"; exit 1; } - -} elsif ( $PROFing eq 'p' ) { - if ($PARing eq 'p') { print STDERR "$Pgm: Can't do profiling with -parallel.\n"; exit 1; } - if ($GRANing eq 'g') { print STDERR "$Pgm: Can't do profiling with -gransim.\n"; exit 1; } - if ($TICKYing eq 't') { print STDERR "$Pgm: Can't do profiling with -ticky.\n"; exit 1; } - $BuildTag = ($CONCURing eq 'c') ? '_mr' : '_p' ; # possibly "profiled concurrent"... - -} elsif ( $CONCURing eq 'c' ) { - if ($PARing eq 'p') { print STDERR "$Pgm: Can't mix -concurrent with -parallel.\n"; exit 1; } - if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -concurrent with -gransim.\n"; exit 1; } - $BuildTag = ($TICKYing eq 't') ? '_mt' : '_mc' ; # possibly "ticky concurrent"... - # "profiled concurrent" already acct'd for... - -} elsif ( $PARing eq 'p' ) { - if ($GRANing eq 'g') { print STDERR "$Pgm: Can't mix -parallel with -gransim.\n"; exit 1; } - if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -parallel with -ticky.\n"; exit 1; } - $BuildTag = '_mp'; - - if ( $Do_lnkr && ( ! $ENV{'PVM_ROOT'} || ! $ENV{'PVM_ARCH'} )) { - print STDERR "$Pgm: both your PVM_ROOT and PVM_ARCH environment variables must be set for linking under -parallel.\n"; - exit(1); +# Check if the source file is up to date relative to the target; in +# that case we say "source is unchanged" and let the compiler bail out +# early if the import usage information allows it. + + ($i_dev,$i_ino,$i_mode,$i_nlink,$i_uid,$i_gid,$i_rdev,$i_size, + $i_atime,$i_mtime,$i_ctime,$i_blksize,$i_blocks) = stat($ifile); + + if ( ! -f $ofile_target ) { +# print STDERR "$Pgm:compile:Output file $ofile_target doesn't exist\n"; + $source_unchanged = 0; } -} elsif ( $GRANing eq 'g' ) { - if ($TICKYing eq 't') { print STDERR "$Pgm: Can't mix -gransim with -ticky.\n"; exit 1; } - $BuildTag = '_mg'; + ($o_dev,$o_ino,$o_mode,$o_nlink,$o_uid,$o_gid,$o_rdev,$o_size, + $o_atime,$o_mtime,$o_ctime,$o_blksize,$o_blocks) = stat(_); # stat info from -f test -} elsif ( $TICKYing eq 't' ) { - $BuildTag = '_t'; -} -\end{code} + if ( ! -f $hifile_target ) { +# print STDERR "$Pgm:compile:Interface file $hifile_target doesn't exist\n"; + $source_unchanged = 0; + } -\begin{code} -if ( $BuildTag ne '' ) { # something other than normal sequential... + ($hi_dev,$hi_ino,$hi_mode,$hi_nlink,$hi_uid,$hi_gid,$hi_rdev,$hi_size, + $hi_atime,$hi_mtime,$hi_ctime,$hi_blksize,$hi_blocks) = stat(_); # stat info from -f test - push(@HsP_flags, "-g$BuildTag.hi"); # use appropriate Prelude .hi files + if ($i_mtime > $o_mtime) { +# print STDERR "$Pgm:recompile:Input file $ifile newer than $ofile_target\n"; + $source_unchanged = 0; + } - $ProduceC = 1; $ProduceS = ''; # must go via C + # So if source_unchanged is still "1", we pass on the good news to the compiler + # The -recomp flag can disable this, forcing recompilation + if ($Do_recomp_chkr && $source_unchanged) { + push(@HsC_flags, '-fsource-unchanged'); + } + +# Run the compiler + + &runHsc($ifile_root, $hsc_out, $hsc_hi, $going_interactive); + +# See if it bailed out early, saying nothing needed doing. +# We work this out by seeing if it created an output .hi file + + if ( ! -f $hsc_hi ) { + # Doesn't exist, so we bailed out early. + # Tell the C compiler and assembler not to run + $do_cc = 0; $do_as = 0; + + # Update dependency info, touch both object file and + # interface file, so that the following invariant is + # maintained: + # + # a dependent module's interface file should after recompilation + # checking be newer than the interface files of its imports. + # + # That is, if module A's interface file changes, then module B + # (which import from A) needs to be checked. + # If A's change does not affect B, which causes the compiler to bail + # out early, we still need to touch the interface file of B. The reason + # for this is that B may export A's interface. + # + &run_something("touch $ofile_target $hifile_target", + "Touch $ofile_target $hifile_target, to propagate dependencies"); + + } else { + + # Didn't bail out early (new .hi file) so we thunder on + + # If non-interactive, heave in the consistency info at the end + # NB: pretty hackish (depends on how $output is set) + if ( ! $going_interactive ) { + if ( $HscOut eq '-C=' ) { + $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $hsc_out"; + + } elsif ( $HscOut eq '-S=' ) { + local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options"; + $consist =~ s/,/./g; + $consist =~ s/\//./g; + $consist =~ s/-/_/g; + $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly? + $to_do = "echo '\n\t.text\n$consist:' >> $hsc_out"; + } + &run_something($to_do, 'Pin on Haskell consistency info'); + } -# print STDERR "eval...",$EvaldSetupOpts{$BuildTag},"\n"; - eval($EvaldSetupOpts{$BuildTag}); + # Interface-handling is important enough to live off by itself + require('ghc-iface.prl') + || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-iface.prl!\n"); + + &postprocessHiFile($hsc_hi, $hifile_target, $going_interactive); + + # save a copy of the .hc file, even if we are carrying on... + if ($HscOut eq '-C=' && $do_cc && $Keep_hc_file_too) { + local($to_do) = "$Rm $ifile_root.hc; $Cp $hsc_out $ifile_root.hc"; + &run_something($to_do, 'Saving copy of .hc file'); + } + + # save a copy of the .s file, even if we are carrying on... + if ($HscOut eq '-S=' && $do_as && $Keep_s_file_too) { + local($to_do) = "$Rm $ifile_root.s; $Cp $hsc_out $ifile_root.s"; + &run_something($to_do, 'Saving copy of .s file'); + } + + # if we're going to split up object files, + # we inject split markers into the .hc file now + if ( $HscOut eq '-C=' && $SplitObjFiles ) { + &inject_split_markers ( $hsc_out ); + } + } } \end{code} -Decide what the consistency-checking options are in force for this run: -\begin{code} -$HsC_consist_options = "${BuildTag},${DEBUGging}"; -$Cc_consist_options = "${BuildTag},${DEBUGging},${RegisteriseC}"; -\end{code} - -%************************************************************************ -%* * -\subsection{Add on machine-specific C-compiler flags} -%* * -%************************************************************************ -Shove on magical machine-specific options. We use \tr{unshift} to -stick them on the {\em front} of the arrays, so that ``later'' -user-specified flags can clobber them (e.g., \tr{-U__STG_REV_TBLS__}). +\begin{code} +sub runHsc { + local($ifile_root, $hsc_out, $hsc_hi, $going_interactive) = @_; -Note: a few ``always apply'' flags were set at the very beginning. + # prepend comma to HsP flags (so hsc can tell them apart...) + foreach $a ( @HsP_flags ) { $a = ",$a" unless $a =~ /^,/; } -\begin{code} -if ($TargetPlatform =~ /^alpha-/) { - # we know how to *mangle* asm for alpha - unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__')); - unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK; - unshift(@CcBoth_flags, ('-static')) if $GccAvailable; - -} elsif ($TargetPlatform =~ /^hppa/) { - # we know how to *mangle* asm for hppa - unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__')); - unshift(@CcBoth_flags, ('-static')) if $GccAvailable; - # We don't put in '-mlong-calls', because it's only - # needed for very big modules (sigh), and we don't want - # to hobble ourselves further on all the other modules - # (most of them). - unshift(@CcBoth_flags, ('-D_HPUX_SOURCE')) if $GccAvailable; - # ___HPUX_SOURCE, not _HPUX_SOURCE, is #defined if -ansi! - # (very nice, but too bad the HP /usr/include files don't agree.) + &makeHiMap() unless $HiMapDone; +# print STDERR "HiIncludes: $HiIncludeString\n"; + push(@HsC_flags, "-himap=$HiIncludeString"); +# push(@HsC_flags, "-himap=$HiMapFile"); -} elsif ($TargetPlatform =~ /^i386-/) { - # we know how to *mangle* asm for X86 - unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__')); - unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) - if $StkChkByPageFaultOK && $TargetPlatform !~ /linux/; - # NB: cannot do required signal magic on Linux for such stk chks */ + # here, we may produce .hc/.s and/or .hi files + local($output) = ''; + @Files_to_tidy = (); - unshift(@CcRegd_flags, ('-m486')); # not worth not doing + if ( $going_interactive ) { + # don't need .hi unless going to show it on stdout: + $ProduceHi = '-nohifile=' if ! $HiOnStdout; + $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further... + } - # -fno-defer-pop : basically the same game as for m68k - # - # -fomit-frame-pointer : *must* ; because we're stealing - # the fp (%ebp) for our register maps. *All* register - # maps (in MachRegs.lh) must steal it. + # set up for producing output/.hi; note that flag twiddling + # may mean that nothing will actually be produced: + $output = "$ProduceHi$hsc_hi $HscOut$hsc_out"; + @Files_to_tidy = ( $hsc_hi, $hsc_out ); - unshift(@CcRegd_flags_hc, '-fno-defer-pop'); - unshift(@CcRegd_flags, '-fomit-frame-pointer'); - unshift(@CcRegd_flags, "-DSTOLEN_X86_REGS=$StolenX86Regs"); + # if we're compiling foo.hs, we want the GC stats to end up in foo.stat + if ( $CollectingGCstats ) { + push(@HsC_rts_flags, "-S$ifile_root.stat"); + push(@Files_to_tidy, "$ifile_root.stat"); + } - unshift(@CcBoth_flags, ('-static')) if $GccAvailable; # maybe unnecessary??? + if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc' + # emit nofibbish time/bytes-alloc stats to stderr; + # see later .stat file post-processing + push(@HsC_rts_flags, "-s$Tmp_prefix.stat"); + push(@Files_to_tidy, "$Tmp_prefix.stat"); + } -} elsif ($TargetPlatform =~ /^m68k-/) { - # we know how to *mangle* asm for m68k - unshift (@CcRegd_flags, ('-D__STG_REV_TBLS__')); - unshift (@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK; + local($dump) = ''; + if ($Specific_dump_file ne '') { + $dump = "2>> $Specific_dump_file"; + $Using_dump_file = 1; + } - # -fno-defer-pop : for the .hc files, we want all the pushing/ - # popping of args to routines to be explicit; if we let things - # be deferred 'til after an STGJUMP, imminent death is certain! - # - # -fomit-frame-pointer : *don't* - # It's better to have a6 completely tied up being a frame pointer - # rather than let GCC pick random things to do with it. - # (If we want to steal a6, then we would try to do things - # as on iX86, where we *do* steal the frame pointer [%ebp].) - - unshift(@CcRegd_flags_hc, '-fno-defer-pop'); - unshift(@CcRegd_flags, '-fno-omit-frame-pointer'); - # maybe gives reg alloc a better time - # also: -fno-defer-pop is not sufficiently well-behaved without it + local($to_do); + $to_do = "$HsC @HsP_flags ,$hscpp_hsc $dump @HsC_flags $CoreLint $StgLint $Verbose $output +RTS @HsC_rts_flags"; + &run_something($to_do, 'Haskell compiler'); -} elsif ($TargetPlatform =~ /^powerpc-/) { - # we know how to *mangle* asm for PowerPC - unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__')); - unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK; - -} elsif ($TargetPlatform =~ /^sparc-/) { - # we know how to *mangle* asm for SPARC - unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__')); - unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK; - -} elsif ($TargetPlatform =~ /^mips-/) { - # we (hope to) know how to *mangle* asm for MIPSen - unshift(@CcRegd_flags, ('-D__STG_REV_TBLS__')); - unshift(@CcRegd_flags, ('-DSTACK_CHECK_BY_PAGE_FAULT=1')) if $StkChkByPageFaultOK; - unshift(@CcBoth_flags, ('-static')) if $GccAvailable; + # finish business w/ nofibbish time/bytes-alloc stats + &process_ghc_timings() if $CollectGhcTimings; } \end{code} -Same unshifting magic, but for special linker flags. - -Should really be whether or not we prepend underscores to global symbols, -not an architecture test. (JSM) - +Use \tr{@Import_dir} and \tr{@SysImport_dir} to make a tmp file +of (module-name, pathname) pairs, one per line, separated by a space. \begin{code} -unshift(@Ld_flags, - ( $TargetPlatform =~ /^alpha-/ - || $TargetPlatform =~ /^hppa/ - || $TargetPlatform =~ /^mips-sgi-irix/ - || $TargetPlatform =~ /^powerpc-/ - || $TargetPlatform =~ /-solaris/ - ) - ? ('-u', 'unsafePerformPrimIO_fast1', - '-u', 'Nil_closure', - '-u', 'IZh_static_info', - '-u', 'False_inregs_info', - '-u', 'True_inregs_info', - '-u', 'CZh_static_info', - '-u', 'DEBUG_REGS') # just for fun, now... - - # nice friendly a.out machines... - : ('-u', '_unsafePerformPrimIO_fast1', - '-u', '_Nil_closure', - '-u', '_IZh_static_info', - '-u', '_False_inregs_info', - '-u', '_True_inregs_info', - '-u', '_CZh_static_info', - '-u', '_DEBUG_REGS') - ); -\end{code} +#%HiMap = (); +$HiMapDone = 0; +$HiMapFile = ''; +$HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC -%************************************************************************ -%* * -\subsection{Set up include paths and system-library enslurpment} -%* * -%************************************************************************ +sub makeHiMap { -Now that we know what garbage-collector, etc., are required, we can -finalise our list of libraries to slurp through, and generally Get -Ready for Business. + # collect in %HiMap; write later; also used elsewhere in driver -\begin{code} -# default includes must be added AFTER option processing -if ( $(INSTALLING) ) { - push (@Include_dir, "$InstLibDirGhc/includes"); - push (@Include_dir, "$InstDataDirGhc/includes"); + local($mod, $path, $d, $e); + + # reset the global variables: + #%HiMap = (); + $HiMapDone = 0; + $HiMapFile = ''; + $HiIncludeString = (); # dir1:dir2:dir3, to pass to GHC -} else { - push (@Include_dir, "$TopPwd/$(CURRENT_DIR)/$(GHC_INCLUDESRC)"); -} -\end{code} + foreach $d ( @Import_dir ) { + if ($HiIncludeString) { $HiIncludeString = "$HiIncludeString:$d"; + } else { $HiIncludeString = $d; } -\begin{code} -local($f); -foreach $f (@SysLibrary) { - $f .= "${BuildTag}" if $f =~ /^-lHS/; -} +# The compiler does the searching now +# +# opendir(DIR, $d) || &tidy_up_and_die(1,"$Pgm: error when reading directory: $d\n"); +# local(@entry) = readdir(DIR); +# foreach $e ( @entry ) { +# next unless $e =~ /\b([A-Z][A-Za-z0-9_]*)\.${HiSuffix_prelude}$/o; +# $mod = $1; +# $path = "$d/$e"; +# $path =~ s,^\./,,; +# +# if ( ! defined($HiMap{$mod}) ) { +# $HiMap{$mod} = $path; +# } else { +# &already_mapped_err($mod, $HiMap{$mod}, $path); +# } +# } +# closedir(DIR); # || &tidy_up_and_die(1,"$Pgm: error when closing directory: $d\n"); + } + + foreach $d ( @SysImport_dir ) { + if ($HiIncludeString) { $HiIncludeString = "$HiIncludeString:$d"; + } else { $HiIncludeString = $d; } -# fiddle the TopClosure file name... -$TopClosureFile =~ s/XXXX//; - -# Push library HSrts, plus boring clib bit -push(@SysLibrary, "-lHSrts${BuildTag}"); -push(@SysLibrary, '-lHSclib'); - -# Push the pvm libraries -if ($BuildTag eq '_mp') { - $pvmlib = "$ENV{'PVM_ROOT'}/lib/$ENV{'PVM_ARCH'}"; - push(@SysLibrary, "-L$pvmlib", '-lpvm3', '-lgpvm3'); - if ( $ENV{'PVM_ARCH'} eq 'SUNMP' ) { - push(@SysLibrary, '-lthread', '-lsocket', '-lnsl'); - } elsif ( $ENV{'PVM_ARCH'} eq 'SUN4SOL2' ) { - push(@SysLibrary, '-lsocket', '-lnsl'); +# opendir(DIR, $d) || &tidy_up_and_die(1,"$Pgm: error when reading directory: $d\n"); +# local(@entry) = readdir(DIR); +# foreach $e ( @entry ) { +# next unless $e =~ /([A-Z][A-Za-z0-9_]*)\.$HiSuffix$/o; +# next if $NoImplicitPrelude && $e =~ /Prelude\.$HiSuffix$/o; +# +# $mod = $1; +# $path = "$d/$e"; +# $path =~ s,^\./,,; +# +# if ( ! defined($HiMap{$mod}) ) { +# $HiMap{$mod} = $path; +# } elsif ( $mod ne 'Main' ) { # saves useless warnings... +# &already_mapped_err($mod, $HiMap{$mod}, $path); +# } +# } +# closedir(DIR); # || &tidy_up_and_die(1,"$Pgm: error when closing directory: $d\n"); } -} -# Push the GNU multi-precision arith lib; and the math library -push(@SysLibrary, '-lgmp'); -push(@SysLibrary, '-lm'); -\end{code} +# +# Not currently used: +# +# $HiMapFile = "$Tmp_prefix.himap"; +# unlink($HiMapFile); +# open(HIMAP, "> $HiMapFile") || &tidy_up_and_die(1,"$Pgm: can't open $HiMapFile\n"); +# foreach $d (keys %HiMap) { +# print HIMAP $d, ' ', $HiMap{$d}, "\n"; +# } +# close(HIMAP) || &tidy_up_and_die(1,"$Pgm: error when closing $HiMapFile\n"); -%************************************************************************ -%* * -\subsection{Check that this system was built to do what we are asking} -%* * -%************************************************************************ + $HiMapDone = 1; +} -Before continuing we check that the appropriate build is available. +sub already_mapped_err { + local($mod, $mapped_to, $path) = @_; -\begin{code} -die "$Pgm: no BuildAvail?? $BuildTag\n" if ! $BuildAvail{$BuildTag}; # sanity + # OK, it isn't really an error if $mapped_to and $path turn + # out to be the same thing. + ($m_dev,$m_ino,$m_mode,$m_nlink,$m_uid,$m_gid,$m_rdev,$m_size, + $m_atime,$m_mtime,$m_ctime,$m_blksize,$m_blocks) = stat($mapped_to); + ($p_dev,$p_ino,$p_mode,$p_nlink,$p_uid,$p_gid,$p_rdev,$p_size, + $p_atime,$p_mtime,$p_ctime,$p_blksize,$p_blocks) = stat($path); -if ( $BuildAvail{$BuildTag} =~ /^-build-.*-not-defined$/ ) { - print STDERR "$Pgm: a `", $BuildDescr{$BuildTag}, - "' \"build\" is not available with your GHC setup.\n"; - print STDERR "(It was not configured for it at your site.)\n"; - print STDERR $ShortUsage; - exit 1; + return if $m_ino == $p_ino; # same inode number + + print STDERR "$Pgm: module $mod already mapped to $mapped_to"; + print STDERR ";\n\tignoring: $path\n"; } \end{code} %************************************************************************ %* * -\subsection{Final miscellaneous setup bits before we start going} +\section[Driver-misc-utils]{Miscellaneous utilities} %* * %************************************************************************ -Record largest specific heapsize, if any. -\begin{code} -$Specific_heap_size = $Specific_heap_size * $Scale_sizes_by; -push(@HsC_rts_flags, '-H'.$Specific_heap_size); -$Specific_stk_size = $Specific_stk_size * $Scale_sizes_by; -push(@HsC_rts_flags, (($RTS_style eq 'ghc') ? '-K' : '-A').$Specific_stk_size); - -# hack to avoid running hscpp -$HsCpp = $Cat if ! $Cpp_flag_set; -\end{code} - -If no input or link files seen, then we let 'em feed in stdin; this is -mainly for debugging. -\begin{code} -if ($#Input_file < 0 && $#Link_file < 0) { - push(@Input_file, '-'); -} -\end{code} - -Tell the world who we are, if they asked. -\begin{code} -if ($Verbose) { - print STDERR "$(PROJECTNAME), version $(PROJECTVERSION) $(PROJECTPATCHLEVEL)\n"; -} -\end{code} - %************************************************************************ %* * -\section[Driver-main-loop]{Main loop: Process input files, and link if required} +\subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set} %* * %************************************************************************ -Process the input files; don't continue with linking if there are -problems (global variable @$Status@ non-zero). \begin{code} -foreach $ifile (@Input_file) { - &ProcessInputFile($ifile); +sub osuf_ify { + local($ofile,$def_suffix) = @_; + + return(($Osuffix eq '') ? "$ofile.$def_suffix" : "$ofile.$Osuffix" ); } -if ( $Status > 0 ) { # don't link if there were errors... - print STDERR $ShortUsage; - &tidy_up(); - exit $Status; +sub odir_ify { + local($orig_file, $def_suffix) = @_; + if ($Specific_output_dir eq '') { # do nothing + &osuf_ify($orig_file, $def_suffix); + } else { + local ($orig_file_only); + ($orig_file_only = $orig_file) =~ s|.*/||; + &osuf_ify("$Specific_output_dir/$orig_file_only",$def_suffix); + } } \end{code} -Link if appropriate. \begin{code} -if ($Do_lnkr) { - local($libdirs); - # glue them together: - push(@UserLibrary_dir, @SysLibrary_dir); - if ($#UserLibrary_dir < 0) { - $libdirs = ''; - } else { - $libdirs = '-L' . join(' -L',@UserLibrary_dir); +sub runGcc { + local($is_hc_file, $hsc_out, $cc_as_o) = @_; + + local($includes) = '-I' . join(' -I', @Include_dir); + local($cc); + local($s_output); + local($c_flags) = "@CcBoth_flags"; + local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : ''; + + # "input" files to use that are not in some weird directory; + # to help C compilers grok .hc files [ToDo: de-hackify] + local($cc_help) = "ghc$$.c"; + local($cc_help_s) = "ghc$$.s"; + + $cc = $CcRegd; + $s_output = ($is_hc_file || $TargetPlatform =~ /^(hppa|i386)/) ? $cc_as_o : $cc_as; + $c_flags .= " @CcRegd_flags"; + $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c"; + + # C compiler won't like the .hc extension. So we create + # a tmp .c file which #include's the needful. + open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n"); + if ( $is_hc_file ) { + print TMP <= 0; } - # for a linker, use an explicitly given one, or the going C compiler ... - local($lnkr) = ( $Lnkr ) ? $Lnkr : ($RegisteriseC ? $CcRegd : $CcUnregd ); + # heave in the consistency info + print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n"; - local($output)= ($Specific_output_file ne '') ? "-o $Specific_output_file" : ''; - @Files_to_tidy = ( ($Specific_output_file ne '') ? "$Specific_output_file" : 'a.out' ); + # and #include the real source + print TMP "#include \"$hsc_out\"\n"; + close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n"); - local($to_do) = "$lnkr $Verbose @Ld_flags $output @Link_file $TopClosureFile $libdirs @UserLibrary @SysLibrary"; - &run_something($to_do, 'Linker'); + 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 )"; + # note: __GLASGOW_HASKELL__ is pointedly *not* #defined at the C level. + if ( $Only_preprocess_C ) { # HACK ALERT! + $to_do =~ s/ -S\b//g; + } + @Files_to_tidy = ( $cc_help, $cc_help_s, $s_output ); + $PostprocessCcOutput = 1; # hack, dear hack... + &run_something($to_do, 'C compiler'); + $PostprocessCcOutput = 0; + unlink($cc_help, $cc_help_s); +} +\end{code} - # finally, check the consistency info in the binary - local($executable) = $Files_to_tidy[0]; - @Files_to_tidy = (); # reset; we don't want to nuke it if it's inconsistent +\begin{code} +sub runMangler { + local($is_hc_file, $cc_as_o, $cc_as, $ifile_root) = @_; - if ( $LinkChk ) { - # dynamically load consistency-chking code; then do it. - require('ghc-consist.prl') - || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-consist.prl!\n"); + if ( $is_hc_file ) { + # dynamically load assembler-fiddling code, which we are about to use: + require('ghc-asm.prl') + || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n"); + } - &chk_consistency_info ( $executable ); + print STDERR `cat $cc_as_o` if $Dump_raw_asm; # to stderr, before mangling + + if ($is_hc_file) { + # post-process the assembler [.hc files only] + &mangle_asm($cc_as_o, $cc_as); + + +#OLD: for sanity: +#OLD: local($target) = 'oops'; +#OLD: $target = '-alpha' if $TargetPlatform =~ /^alpha-/; +#OLD: $target = '-hppa' if $TargetPlatform =~ /^hppa/; +#OLD: $target = '-old-asm' if $TargetPlatform =~ /^i386-/; +#OLD: $target = '-m68k' if $TargetPlatform =~ /^m68k-/; +#OLD: $target = '-mips' if $TargetPlatform =~ /^mips-/; +#OLD: $target = '' if $TargetPlatform =~ /^powerpc-/; +#OLD: $target = '-solaris' if $TargetPlatform =~ /^sparc-sun-solaris2/; +#OLD: $target = '-sparc' if $TargetPlatform =~ /^sparc-sun-sunos4/; +#OLD: +#OLD: if ( $target ne '' ) { +#OLD: require("ghc-asm$target.prl") +#OLD: || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm$target.prl!\n"); +#OLD: &mangle_asm($cc_as_o, "$cc_as-2"); # the OLD one! +#OLD: &run_something("$Cmp -s $cc_as-2 $cc_as || $Diff $cc_as-2 $cc_as 1>&2 || exit 0", +#OLD: "Diff'ing old and new mangled .s files"); # NB: to stderr +#OLD: } + + } elsif ($TargetPlatform =~ /^hppa/) { + # minor mangling of non-threaded files for hp-pa only + require('ghc-asm.prl') + || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n"); + &mini_mangle_asm_hppa($cc_as_o, $cc_as); + + } elsif ($TargetPlatform =~ /^i386/) { + # extremely-minor OFFENSIVE mangling of non-threaded just one file + require('ghc-asm.prl') + || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n"); + &mini_mangle_asm_i386($cc_as_o, $cc_as); } - # if PVM parallel stuff, we do truly weird things. - # Essentially: (1) move the executable over to where PVM expects - # to find it. (2) create a script in place of the executable - # which will cause the program to be run, via SysMan. - if ( $PARing eq 'p' ) { - local($pvm_executable) = $executable; - local($pvm_executable_base); + # save a copy of the .s file, even if we are carrying on... + if ($do_as && $Keep_s_file_too) { + local($to_do) = "$Rm $ifile_root.s; $Cp $cc_as $ifile_root.s"; + &run_something($to_do, 'Saving copy of .s file'); + } +} +\end{code} - if ( $pvm_executable !~ /^\// ) { # a relative path name: make absolute - local($pwd) = `pwd`; - chop($pwd); - $pwd =~ s/^\/tmp_mnt//; - $pvm_executable = "$pwd/$pvm_executable"; - } +\begin{code} +sub runAs { + local($as_out, $ifile_root) = @_; - $pvm_executable =~ s|/|=|g; # make /s into =s - $pvm_executable_base = $pvm_executable; + local($asmblr) = ( $As ) ? $As : $CcRegd; - $pvm_executable = $ENV{'PVM_ROOT'} . '/bin/' . $ENV{'PVM_ARCH'} - . "/$pvm_executable"; + if ( ! $SplitObjFiles ) { + local($to_do) = "$asmblr -o $as_out -c @As_flags $cc_as"; + @Files_to_tidy = ( $as_out ); + &run_something($to_do, 'Unix assembler'); - &run_something("rm -f $pvm_executable; cp -p $executable $pvm_executable && rm -f $executable", 'Moving binary to PVM land'); + } else { # more complicated split-ification... - # OK, now create the magic script for "$executable" - open(EXEC, "> $executable") || &tidy_up_and_die(1,"$Pgm: couldn't open $executable to write!\n"); - print EXEC < $Tmp_prefix.hs") || &tidy_up_and_die(1,"Can't open $Tmp_prefix.hs\n"); - print STDERR "Enter your Haskell program, end with ^D (on a line of its own):\n"; - while (<>) { print INF $_; } - close(INF) || &tidy_up_and_die(1,"Failed writing to $Tmp_prefix.hs\n"); - $ifile = "$Tmp_prefix.hs"; - $ifile_root = '_stdin'; - $ifile_root_file = $ifile_root; - } else { - ($ifile_root = $ifile) =~ s/\.[^\.\/]+$//; - ($ifile_root_file = $ifile_root) =~ s|.*/||; - } -\end{code} - -We now decide what phases of the compilation system we will run over -this file. The defaults are the ones established when processing flags. -(That established what the last phase run for all files is.) - -The lower-case names are the local ones (as is usual), just for this -one file. -\begin{code} - local($do_lit2pgm) = $Do_lit2pgm; - local($do_hscpp) = $Do_hscpp; - local($do_hsp) = $Do_hsp; - local($do_hsc) = $Do_hsc; - local($do_as) = $Do_as; - local($do_cc) = ( $Do_cc != -1) # i.e., it was set explicitly - ? $Do_cc - : ( ($ProduceC) ? 1 : 0 ); -\end{code} - -Look at the suffix and decide what initial phases of compilation may -be dropped off for this file. Also the rather boring business of -which files are coming-in/going-out. -\begin{code} - # names of the files to stuff between phases - # defaults are temporaries - local($in_lit2pgm) = $ifile; - local($lit2pgm_hscpp) = "$Tmp_prefix.lpp"; - local($hscpp_hsp) = "$Tmp_prefix.cpp"; - local($hsp_hsc) = "$Tmp_prefix.hsp"; - local($hsc_cc) = "$Tmp_prefix.hc"; - - # to help C compilers grok .hc files [ToDo: de-hackify] - local($cc_help) = "ghc$$.c"; - local($cc_help_s) = "ghc$$.s"; - - local($hsc_hi) = "$Tmp_prefix$HiSuffix"; - local($cc_as_o) = "${Tmp_prefix}_o.s"; # temporary for raw .s file if opt C - local($cc_as) = "$Tmp_prefix.s"; - local($as_out) = ($Specific_output_file ne '' && ! $Do_lnkr) - ? $Specific_output_file - : &odir_ify("${ifile_root}${Osuffix}"); - - local($is_hc_file) = 1; #Is the C code .hc or .c - - if ($ifile =~ /\.lhs$/) { - push(@Link_file, &odir_ify("${ifile_root}${Osuffix}")); - } elsif ($ifile =~ /\.hs$/) { - $do_lit2pgm = 0; - $lit2pgm_hscpp = $ifile; - push(@Link_file, &odir_ify("${ifile_root}${Osuffix}")); - } elsif ($ifile =~ /\.hc$/) { - $do_lit2pgm = 0; $do_hscpp = 0; $do_hsp = 0; $do_hsc = 0; $do_cc = 1; - $hsc_cc = $ifile; - push(@Link_file, &odir_ify("${ifile_root}${Osuffix}")); - } elsif ($ifile =~ /\.c$/) { - $do_lit2pgm = 0; $do_hscpp = 0; $do_hsp = 0; $do_hsc = 0; $do_cc = 1; - $hsc_cc = $ifile; $is_hc_file = 0; - push(@Link_file, &odir_ify("${ifile_root}${Osuffix}")); - } elsif ($ifile =~ /\.s$/) { - $do_lit2pgm = 0; $do_hscpp = 0; $do_hsp = 0; $do_hsc = 0; $do_cc = 0; - $cc_as = $ifile; - push(@Link_file, &odir_ify("${ifile_root}${Osuffix}")); - } else { - if ($ifile !~ /\.a$/) { - print STDERR "$Pgm: don't recognise suffix on `$ifile'; passing it through to linker\n"; - } - $do_lit2pgm = 0; $do_hscpp = 0; $do_hsp = 0; $do_hsc = 0; $do_cc = 0; $do_as = 0; - push(@Link_file, $ifile); - } -\end{code} - -To get the output file name right: for each phase that we are {\em -not} going to run, set its input (i.e., the output of its preceding phase) to -@"$ifile_root."@. -\begin{code} - # lit2pgm -- no preceding phase - if (! $do_hscpp) { - $lit2pgm_hscpp = "$ifile_root.lpp????"; # not done - } - if (! $do_hsp) { - $hscpp_hsp = "$ifile_root.cpp????"; # not done - } - if (! $do_hsc) { - $hsp_hsc = "$ifile_root.hsp????"; # not done - } - if (! $do_cc) { - $hsc_cc = &odir_ify("$ifile_root.hc"); - } - if (! $do_as) { - if ($Specific_output_file ne '') { - $cc_as = $Specific_output_file; - } else { - $cc_as = &odir_ify(( $Only_preprocess_C ) ? "$ifile_root.i" : "$ifile_root.s"); - } - } -\end{code} - -OK, now do it! Note that we don't come back from a @run_something@ if -it fails. -\begin{code} - if ($do_lit2pgm) { - local($to_do) = "echo '#line 1 \"$in_lit2pgm\"' > $lit2pgm_hscpp; ". - "$Unlit @Unlit_flags $in_lit2pgm - >> $lit2pgm_hscpp"; - @Files_to_tidy = ( $lit2pgm_hscpp ); - &run_something($to_do, 'literate pre-processor'); - } - if ($do_hscpp) { - # ToDo: specific output? - if ($HsCpp eq $Cat) { - local($to_do) = "echo '#line 1 \"$in_lit2pgm\"' > $hscpp_hsp; ". - "$HsCpp $lit2pgm_hscpp >> $hscpp_hsp"; - @Files_to_tidy = ( $hscpp_hsp ); - &run_something($to_do, 'Ineffective C pre-processor'); - } else { - local($includes) = '-I' . join(' -I',@Include_dir); - local($to_do) = "echo '#line 1 \"$in_lit2pgm\"' > $hscpp_hsp; ". - "$HsCpp $Verbose @HsCpp_flags -D__HASKELL1__=$haskell1_version -D__GLASGOW_HASKELL__=$ghc_version_info $includes $lit2pgm_hscpp >> $hscpp_hsp"; - @Files_to_tidy = ( $hscpp_hsp ); - &run_something($to_do, 'Haskellised C pre-processor'); - } - } - if ($do_hsp) { - # glue imports onto HsP_flags - # if new parser, then put a comma on the front of all of them. - local($hsprefix) = ($do_hsp == 2) ? ',' : ''; - - foreach $a ( @HsP_flags ) { $a = "$hsprefix$a" unless $a =~ /^,/; } - foreach $dir ( @Import_dir ) { push(@HsP_flags, "$hsprefix-I$dir"); } - foreach $dir ( @SysImport_dir ) { push(@HsP_flags, "$hsprefix-J$dir"); } - } - - if ($do_hsp == 1) { # "old" parser - local($to_do) = "$HsP $Verbose @HsP_flags $hscpp_hsp > $hsp_hsc"; - @Files_to_tidy = ( $hsp_hsc ); - &run_something($to_do, 'Haskell parser'); - if ($Dump_parser_output) { - print STDERR `$Cat $hsp_hsc`; - } - @HsP_flags = (); # reset! - } - if ($do_hsc) { - # here, we may produce .hc and/or .hi files - local($output) = ''; - local($c_source) = "$ifile_root.hc"; - local($c_output) = $hsc_cc; # defaults - local($s_output) = $cc_as; - local($hi_output) = "$ifile_root$HiSuffix"; - local($going_interactive) = 0; - - if ($Specific_output_file ne '' && ! $do_cc) { - $c_source = $c_output = $Specific_output_file; - @Files_to_tidy = ( $Specific_output_file ) if $Specific_output_file ne '-'; - } - if ($Specific_hi_file ne '') { - # we change the suffix (-hisuf) even if a specific -ohi file: - $Specific_hi_file =~ s/\.hi$/$HiSuffix/; - $hi_output = $Specific_hi_file; - @Files_to_tidy = ( $Specific_hi_file ) if $Specific_hi_file ne '-'; - } - - if ( ! ($ProduceC || $ProduceS) - || $ifile_root eq '_stdin' # going interactive... - || ($c_output eq '-' && $hi_output eq '-')) { - $going_interactive = 1; -#OLD: $output = '1>&2'; # interactive/debugging, to stderr - @Files_to_tidy = (); - # don't need .hi (unless magic value "2" says we wanted it anyway): - if ( $ProduceHi == 2 ) { - $output .= " -hi$hsc_hi"; - unlink($hsc_hi); # needs to be cleared; will be appended to - } else { - $ProduceHi = 0; - } - $do_cc = 0; $do_as = 0; $Do_lnkr = 0; # and we won't go any further... - } - - if ( ! $going_interactive ) { - if ( $ProduceHi ) { - # we always go to a temp file for these (for later diff'ing) - $output = "-hi$hsc_hi"; - unlink($hsc_hi); # needs to be cleared; will be appended to - @Files_to_tidy = ( $hsc_hi ); - } - if ( $ProduceC ) { - $output .= " -C$c_output"; - push(@Files_to_tidy, $c_output); - - open(CFILE, "> $c_output") || &tidy_up_and_die(1,"$Pgm: failed to open `$c_output' (to write)\n"); - print CFILE "#line 2 \"$c_source\"\n"; - close(CFILE) || &tidy_up_and_die(1,"Failed writing to $c_output\n"); - # the "real" C output will then be appended - } - if ( $ProduceS ) { - $output .= " -fasm-$ProduceS -S$s_output"; - push(@Files_to_tidy, $s_output); - - # ToDo: ummm,... this isn't doing anything (WDP 94/11) - open(SFILE, "> $s_output") || &tidy_up_and_die(1,"$Pgm: failed to open `$s_output' (to write)\n"); - close(SFILE) || &tidy_up_and_die(1,"Failed writing to $s_output\n"); - # the "real" assembler output will then be appended - } - } - - # if we're compiling foo.hs, we want the GC stats to end up in foo.stat - if ( $CollectingGCstats ) { - if ($RTS_style eq 'hbc') { - push(@HsC_rts_flags, '-S'); # puts it in "STAT" - } else { - push(@HsC_rts_flags, "-S$ifile_root.stat"); - push(@Files_to_tidy, "$ifile_root.stat"); - } - } - - if ( $CollectGhcTimings ) { # assume $RTS_style eq 'ghc' - # emit nofibbish time/bytes-alloc stats to stderr; - # see later .stat file post-processing - push(@HsC_rts_flags, "-s$Tmp_prefix.stat"); - push(@Files_to_tidy, "$Tmp_prefix.stat"); - } - - local($dump); - if ($Specific_dump_file ne '') { - $dump = "2>> $Specific_dump_file"; - $Using_dump_file = 1; - } else { - $dump = ''; - } - - local($to_do); - if ($RTS_style eq 'hbc') { - # NB: no parser flags - $to_do = "$HsC < $hsp_hsc $dump @HsC_rts_flags - @HsC_flags $CoreLint $Verbose $output"; - } elsif ($do_hsp == 1) { # old style parser -- no HsP_flags - $to_do = "$HsC < $hsp_hsc $dump @HsC_flags $CoreLint $Verbose $output +RTS @HsC_rts_flags"; - } else { # new style - $to_do = "$HsC ,-H @HsP_flags ,$hscpp_hsp $dump @HsC_flags $CoreLint $Verbose $output +RTS @HsC_rts_flags"; - } - &run_something($to_do, 'Haskell compiler'); - - # compensate further for HBC's -S rts opt: - if ($CollectingGCstats && $RTS_style eq 'hbc') { - unlink("$ifile_root.stat"); - rename('STAT', "$ifile_root.stat"); - } - - # finish business w/ nofibbish time/bytes-alloc stats - &process_ghc_timings() if $CollectGhcTimings; - - # if non-interactive, heave in the consistency info at the end - # NB: pretty hackish (depends on how $output is set) - if ( ! $going_interactive ) { - if ( $ProduceC ) { - $to_do = "echo 'static char ghc_hsc_ID[] = \"\@(#)hsc $ifile\t$HsC_major_version.$HsC_minor_version,$HsC_consist_options\";' >> $c_output"; - } - if ( $ProduceS ) { - local($consist) = "hsc.$ifile.$HsC_major_version.$HsC_minor_version.$HsC_consist_options"; - $consist =~ s/,/./g; - $consist =~ s/\//./g; - $consist =~ s/-/_/g; - $consist =~ s/[^A-Za-z0-9_.]/ZZ/g; # ToDo: properly? - $to_do = "echo '\n\t.text\n$consist:' >> $s_output"; - } - &run_something($to_do, 'Pin on Haskell consistency info'); - } - - # call the special mangler to produce the .hi/.h(h?) files... - &diff_hi_file($hsc_hi, $hi_output) - if $ProduceHi == 1 && ! $going_interactive; -#OLD: &extract_c_and_hi_files("$Tmp_prefix.hsc", $c_output, $hi_output, $c_source) - - # if we produced an interface file "no matter what", - # print what we got on stderr (ToDo: honor -ohi flag) - if ( $ProduceHi == 2 ) { - print STDERR `$Cat $hsc_hi`; - } - - # save a copy of the .hc file, even if we are carrying on... - if ($ProduceC && $do_cc && $Keep_hc_file_too) { - local($to_do) = "$(RM) $ifile_root.hc; cp $c_output $ifile_root.hc"; - &run_something($to_do, 'Saving copy of .hc file'); - } - - # save a copy of the .s file, even if we are carrying on... - if ($ProduceS && $do_as && $Keep_s_file_too) { - local($to_do) = "$(RM) $ifile_root.s; cp $cc_as $ifile_root.s"; - &run_something($to_do, 'Saving copy of .s file'); - } - - # if we're going to split up object files, - # we inject split markers into the .hc file now - if ( $ProduceC && $SplitObjFiles ) { - &inject_split_markers ( $c_output ); - } - } - if ($do_cc) { - local($includes) = '-I' . join(' -I',@Include_dir); - local($cc); - local($s_output); - local($c_flags) = "@CcBoth_flags"; - local($ddebug_flag) = ( $DEBUGging ) ? '-DDEBUG' : ''; - if ($RegisteriseC) { - $cc = $CcRegd; - $s_output = ($is_hc_file || $TargetPlatform =~ /^(hppa|i386)/) ? $cc_as_o : $cc_as; - $c_flags .= " @CcRegd_flags"; - $c_flags .= ($is_hc_file) ? " @CcRegd_flags_hc" : " @CcRegd_flags_c"; - } else { - $cc = $CcUnregd; - $s_output = $cc_as; - $c_flags .= " @CcUnregd_flags"; - $c_flags .= ($is_hc_file) ? " @CcUnregd_flags_hc" : " @CcUnregd_flags_c"; - } - - # C compiler won't like the .hc extension. So we create - # a tmp .c file which #include's the needful. - open(TMP, "> $cc_help") || &tidy_up_and_die(1,"$Pgm: failed to open `$cc_help' (to write)\n"); - if ( $is_hc_file ) { - print TMP <= 0; - } - # heave in the consistency info - print TMP "static char ghc_cc_ID[] = \"\@(#)cc $ifile\t$Cc_major_version.$Cc_minor_version,$Cc_consist_options\";\n"; - - # and #include the real source - print TMP "#include \"$hsc_cc\"\n"; - close(TMP) || &tidy_up_and_die(1,"Failed writing to $cc_help\n"); - - local($to_do) = "$cc $Verbose $ddebug_flag $c_flags @Cpp_define -D__HASKELL1__=$haskell1_version $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 )"; - # note: __GLASGOW_HASKELL__ is pointedly *not* #defined at the C level. - if ( $Only_preprocess_C ) { # HACK ALERT! - $to_do =~ s/ -S\b//g; - } - @Files_to_tidy = ( $cc_help, $cc_help_s, $s_output ); - $PostprocessCcOutput = 1; # hack, dear hack... - &run_something($to_do, 'C compiler'); - $PostprocessCcOutput = 0; - unlink($cc_help, $cc_help_s); - - if ( ($RegisteriseC && $is_hc_file) - || $Dump_asm_insn_counts - || $Dump_asm_globals_info ) { - # dynamically load assembler-fiddling code, which we are about to use - local($target) = 'oops'; - $target = '-alpha' if $TargetPlatform =~ /^alpha-/; - $target = '-hppa' if $TargetPlatform =~ /^hppa/; - $target = '' if $TargetPlatform =~ /^i386-/; - $target = '-m68k' if $TargetPlatform =~ /^m68k-/; - $target = '-mips' if $TargetPlatform =~ /^mips-/; - $target = '' if $TargetPlatform =~ /^powerpc-/; - $target = '-solaris' if $TargetPlatform =~ /^sparc-sun-solaris2/; - $target = '-sparc' if $TargetPlatform =~ /^sparc-sun-sunos4/; - - $target ne 'oops' - || &tidy_up_and_die(1,"$Pgm: panic: can't decipher $TargetPlatform!\n"); - require("ghc-asm$target.prl") - || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm$target.prl!\n"); - } - - if ( $Dump_raw_asm ) { # to stderr, before mangling - local($to_pr) = ($RegisteriseC) ? $cc_as_o : $cc_as ; - print STDERR `cat $to_pr`; - } - - if ($RegisteriseC) { - if ($is_hc_file) { - # post-process the assembler [.hc files only] - &mangle_asm($cc_as_o, $cc_as); - - } elsif ($TargetPlatform =~ /^hppa/) { - # minor mangling of non-threaded files for hp-pa only - require('ghc-asm-hppa.prl') - || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm-hppa.prl!\n"); - &mini_mangle_asm($cc_as_o, $cc_as); - - } elsif ($TargetPlatform =~ /^i386/) { - # extremely-minor OFFENSIVE mangling of non-threaded just one file - require('ghc-asm.prl') - || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-asm.prl!\n"); - &mini_mangle_asm($cc_as_o, $cc_as); - } - } - - # collect interesting (static-use) info - &dump_asm_insn_counts($cc_as) if $Dump_asm_insn_counts; - &dump_asm_globals_info($cc_as) if $Dump_asm_globals_info; - - # save a copy of the .s file, even if we are carrying on... - if ($do_as && $Keep_s_file_too) { - local($to_do) = "$(RM) $ifile_root.s; cp $cc_as $ifile_root.s"; - &run_something($to_do, 'Saving copy of .s file'); - } - } - - if ($do_as) { - # if we're splitting .o files... - if ( $SplitObjFiles ) { - &split_asm_file ( $cc_as ); - } - - local($asmblr) = ( $As ) ? $As : ($RegisteriseC ? $CcRegd : $CcUnregd ); - - if ( ! $SplitObjFiles ) { - local($to_do) = "$asmblr -o $as_out -c @As_flags $cc_as"; - @Files_to_tidy = ( $as_out ); - &run_something($to_do, 'Unix assembler'); - - } else { # more complicated split-ification... - - # must assemble files $Tmp_prefix__[1 .. $NoOfSplitFiles].s - - for ($f = 1; $f <= $NoOfSplitFiles; $f++ ) { - local($split_out) = &odir_ify("${ifile_root}__${f}${Osuffix}"); - local($to_do) = "$asmblr -o $split_out -c @As_flags ${Tmp_prefix}__${f}.s"; - @Files_to_tidy = ( $split_out ); - - &run_something($to_do, 'Unix assembler'); - } - } - } -} # end of ProcessInputFile -\end{code} - -%************************************************************************ -%* * -\section[Driver-misc-utils]{Miscellaneous utilities} -%* * -%************************************************************************ - -%************************************************************************ -%* * -\subsection[Driver-odir-ify]{@odir_ify@: Mangle filename if \tr{-odir} set} -%* * -%************************************************************************ - -\begin{code} -sub odir_ify { - local($orig_file) = @_; - if ($Specific_output_dir eq '') { # do nothing - return($orig_file); - } else { - local ($orig_file_only); - ($orig_file_only = $orig_file) =~ s|.*/||; - return("$Specific_output_dir/$orig_file_only"); + &run_something($to_do, 'Unix assembler'); + } } } \end{code} @@ -2486,7 +2224,7 @@ sub run_something { next if /from .*(stg|rts)defs\.h:/; next if /from ghc\d+.c:\d+:/; next if /from .*\.lc/; - next if /from .*SMinternal\.lh/; + next if /from .*SMinternal\.l?h/; next if /ANSI C does not support \`long long\'/; next if /warning:.*was declared \`extern\' and later \`static\'/; next if /warning: assignment discards \`const\' from pointer target type/; @@ -2511,60 +2249,6 @@ sub run_something { %************************************************************************ %* * -\subsection[Driver-demangle-C-and-hi]{@extract_c_and_hi_files@: Unscramble Haskell-compiler output} -%* * -%************************************************************************ - -Update interface if the tmp one is newer... -We first have to fish the module name out of the interface. -\begin{code} -sub diff_hi_file { - local($tmp_hi_file, $hi_file) = @_; - local($if_modulename) = ''; - - # extract the module name - - open(TMP, "< $tmp_hi_file")|| &tidy_up_and_die(1,"$Pgm: failed to open `$tmp_hi_file' (to read)\n"); - while () { - if ( /^interface ([A-Za-z0-9'_]+) / ) { - $if_modulename = $1; - } - } - close(TMP) || &tidy_up_and_die(1,"Failed reading from $tmp_hi_file\n"); - &tidy_up_and_die(1,"No module name in $tmp_hi_file\n") - if ! $if_modulename; - - #compare/diff with old one - - if ($hi_file eq '-') { - &run_something("cat $tmp_hi_file", "copy interface to stdout"); - - } else { - if ($Specific_hi_file eq '' && $if_modulename ne '') { - if ( $hi_file =~ /\// ) { - $hi_file =~ s/\/[^\/]+$//; - $hi_file .= "/$if_modulename$HiSuffix"; - } else { - $hi_file = "$if_modulename$HiSuffix"; - } - print STDERR "interface really going into: $hi_file\n" if $Verbose; - } - - if ($HiDiff_flag && -f $hi_file) { - local($diffcmd) = '$(CONTEXT_DIFF)'; - - &run_something("cmp -s $tmp_hi_file $hi_file || $(CONTEXT_DIFF) $hi_file $tmp_hi_file 1>&2 || exit 0", - "Diff'ing old and new $HiSuffix files"); # NB: to stderr - } - - &run_something("cmp -s $tmp_hi_file $hi_file || ( $(RM) $hi_file && $(CP) $tmp_hi_file $hi_file )", - "Comparing old and new $HiSuffix files"); - } -} -\end{code} - -%************************************************************************ -%* * \subsection[Driver-ghctiming]{Emit nofibbish GHC timings} %* * %************************************************************************ @@ -2647,7 +2331,7 @@ sub process_ghc_timings { \begin{code} sub tidy_up { - local($to_do) = "\n$(RM) $Tmp_prefix*"; + local($to_do) = "\n$Rm $Tmp_prefix*"; if ( $Tmp_prefix !~ /^\s*$/ ) { print STDERR "$to_do\n" if $Verbose; system($to_do); @@ -2680,15 +2364,15 @@ next argument (\tr{-Rmax-heapsize 8M}). We allow both cases. Note: no error-checking; \tr{-Rmax-heapsize -Rgc-stats} will silently gobble the second argument (and probably set the heapsize to something -nonsensical). (ToDo?) +nonsensical). \begin{code} sub grab_arg_arg { - local($option, $rest_of_arg) = @_; + local(*Args, $option, $rest_of_arg) = @_; if ($rest_of_arg) { return($rest_of_arg); - } elsif ($#ARGV >= 0) { - local($temp) = $ARGV[0]; shift(@ARGV); + } elsif ($#Args >= 0) { + local($temp) = $Args[0]; shift(@Args); return($temp); } else { print STDERR "$Pgm: no argument following $option option\n"; @@ -2731,3 +2415,659 @@ sub add_Hsc_flags { } } \end{code} + +Source files may have {-# OPTIONS ... #-} pragmas at the top, containing +command line options we want to append to collection of commands specified +directly. @check_for_source_options@ looks at the top of a de-lit'ified Haskell +file for any such pragmas: + +\begin{code} +sub check_for_source_options { + local($file) = @_; + + open(FILE,$file) || return(1); # No big loss + + while () { + if ( /^{-# OPTIONS (.*)#-}/ ) { + # add the options found at the back of the command line. + local(@entries) = split(/\s+/,$1); + push(@File_options, @entries); + } + elsif ( /^$/ ) { # ignore empty lines + ; + } + else { # stop looking, something non-empty / not + # {-# OPTIONS .. #-} encountered. + break; + } + } + close(FILE); + return(0); +} +\end{code} + + +We split the initial argv up into three arrays: + + - @Cmd_opts + - @Link_file + - @Input_file + +the reason for doing so is to be able to deal +with {-# OPTIONS #-} pragma in source files properly. + +\begin{code} +sub splitCmdLine { + local(@args) = @_; + +arg: while($_ = $args[0]) { + shift(@args); + # sigh, we have to deal with these -option arg specially here. + /^-(tmpdir|odir|o|isuf|osuf|hisuf|hisuf-prelude|odump|syslib)$/ && + do { push(@Cmd_opts, $_); push(@Cmd_opts,$args[0]); shift(@args); next arg; }; + /^-./ && do { push(@Cmd_opts, $_); next arg; }; + + if (/\.[oa]$/) { + push(@Link_file, $_); + } else { + push(@Input_file, $_); + } + + # input files must exist: + if (! -f $_) { + print STDERR "$Pgm: input file doesn't exist: $_\n"; + $Status++; + } + } +} + +\end{code} + +Command-line processor + +\begin{code} +sub processArgs { + local(@Args) = @_; + +# can't use getopt(s); what we want is too complicated + +arg: while($_ = $Args[0]) { + shift(@Args); + + #---------- help ------------------------------------------------------- + if (/^-\?$/ || /^--?help$/) { print $LongUsage; exit $Status; } + + #-----------version ---------------------------------------------------- + /^--version$/ && do { print STDERR "${PROJECTNAME}, version ${PROJECTVERSION}, patchlevel ${PROJECTPATCHLEVEL}\n"; exit $Status; }; + + #---------- verbosity and such ----------------------------------------- + /^-v$/ && do { $Verbose = '-v'; $Time = 'time'; next arg; }; + + #---------- what phases are to be run ---------------------------------- + /^-recomp/ && do { $Do_recomp_chkr = 1; next arg; }; + + /^-cpp$/ && do { $Cpp_flag_set = 1; next arg; }; + # change the global default: + # we won't run cat; we'll run the real thing + + /^-C$/ && do { $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; $HscOut = '-C='; + next arg; }; + # stop after generating C + + /^-noC$/ && do { $HscOut = '-N='; $ProduceHi = '-nohifile='; + $Do_cc = 0; $Do_as = 0; $Do_lnkr = 0; + next arg; }; + # leave out actual C generation (debugging) [also turns off interface gen] + + /^-hi$/ && do { $HiOnStdout = 1; $ProduceHi = '-hifile='; next arg; }; + # _do_ generate an interface; usually used as: -noC -hi + + /^-nohi$/ && do { $ProduceHi = '-nohifile='; next arg; }; + # don't generate an interface (even if generating C) + + /^-hi-diffs$/ && do { $HiDiff_flag = 'normal'; next arg; }; + /^-hi-diffs-with-usages$/ && do { $HiDiff_flag = 'usages'; next arg; }; + /^-no-hi-diffs$/ && do { $HiDiff_flag = ''; next arg; }; + # show/disable diffs if the interface file changes + + /^-E$/ && do { push(@CcBoth_flags, '-E'); + $Only_preprocess_C = 1; + $Do_as = 0; $Do_lnkr = 0; next arg; }; + # stop after preprocessing C + /^-M$/ && do { $Only_generate_deps = 1; $Do_as = 0; $Do_lnkr = 0; next arg; }; + # only generate dependency information. + /^-S$/ && do { $Do_as = 0; $Do_lnkr = 0; next arg; }; + # stop after generating assembler + + /^-c$/ && do { $Do_lnkr = 0; next arg; }; + # stop after generating .o files + + /^-link-chk$/ && do { $LinkChk = 1; next arg; }; + /^-no-link-chk$/ && do { $LinkChk = 0; next arg; }; + # don't do consistency-checking after a link + + /^-tmpdir$/ && do { $Tmp_prefix = &grab_arg_arg(*Args,'-tmpdir', ''); + $Tmp_prefix = "$Tmp_prefix/ghc$$"; + $ENV{'TMPDIR'} = $Tmp_prefix; # for those who use it... + next arg; }; + # use an alternate directory for temp files + + #---------- redirect output -------------------------------------------- + + # -o ; applies to the last phase, whatever it is + # "-o -" sends it to stdout + # if has a directory component, that dir must already exist + + /^-odir$/ && do { $Specific_output_dir = &grab_arg_arg(*Args,'-odir', ''); + # + # Hack, of the worst sort: don't do validation of + # odir argument if you're using -M (dependency generation). + # + if ( ! $Only_generate_deps && ! -d $Specific_output_dir) { + print STDERR "$Pgm: -odir: no such directory: $Specific_output_dir\n"; + $Status++; + } + next arg; }; + + /^-o$/ && do { $Specific_output_file = &grab_arg_arg(*Args,'-o', ''); + if ($Specific_output_file ne '-' + && $Specific_output_file =~ /(.*)\/[^\/]*$/) { + local($dir_part) = $1; + if (! -d $dir_part) { + print STDERR "$Pgm: no such directory: $dir_part\n"; + $Status++; + } + } + next arg; }; + + # NB: -isuf not documented yet (because it doesn't work yet) + /^-isuf$/ && do { $Isuffix = &grab_arg_arg(*Args,'-isuf', ''); + if ($Isuffix =~ /\./ ) { + print STDERR "$Pgm: -isuf suffix shouldn't contain a .\n"; + $Status++; + } + next arg; }; + + /^-osuf$/ && do { $Osuffix = &grab_arg_arg(*Args,'-osuf', ''); + if ($Osuffix =~ /\./ ) { + print STDERR "$Pgm: -osuf suffix shouldn't contain a .\n"; + $Status++; + } + next arg; }; + + # -ohi ; send the interface to ; "-ohi -" to send to stdout + /^-ohi$/ && do { $Specific_hi_file = &grab_arg_arg(*Args,'-ohi', ''); + if ($Specific_hi_file ne '-' + && $Specific_hi_file =~ /(.*)\/[^\/]*$/) { + local($dir_part) = $1; + if (! -d $dir_part) { + print STDERR "$Pgm: no such directory: $dir_part\n"; + $Status++; + } + } + next arg; }; + + # The suffix to use when looking for interface files + /^-hisuf$/ && do { $HiSuffix = &grab_arg_arg(*Args,'-hisuf', ''); + if ($HiSuffix =~ /\./ ) { + print STDERR "$Pgm: -hisuf suffix shouldn't contain a .\n"; + $Status++; + } + next arg; }; + # ToDo: remove, not a `normal' user thing to do (should be automatic) + /^-hisuf-prelude$/ && do { $HiSuffix_prelude = &grab_arg_arg(*Args,'-hisuf-prelude', ''); + if ($HiSuffix =~ /\./ ) { + print STDERR "$Pgm: -hisuf-prelude suffix shouldn't contain a .\n"; + $Status++; + } + next arg; }; + /^-odump$/ && do { $Specific_dump_file = &grab_arg_arg(*Args,'-odump', ''); + if ($Specific_dump_file =~ /(.*)\/[^\/]*$/) { + local($dir_part) = $1; + if (! -d $dir_part) { + print STDERR "$Pgm: no such directory: $dir_part\n"; + $Status++; + } + } + next arg; }; + + #-------------- scc & Profiling Stuff ---------------------------------- + + /^-prof$/ && do { $PROFing = 'p'; next arg; }; # profiling -- details later! + + /^-auto/ && do { + # generate auto SCCs on top level bindings + # -auto-all = all top level bindings + # -auto = only top level exported bindings + $PROFauto = ( /-all/ ) + ? '-fauto-sccs-on-all-toplevs' + : '-fauto-sccs-on-exported-toplevs'; + next arg; }; + + /^-caf-all/ && do { # generate individual CAF SCC annotations + $PROFcaf = '-fauto-sccs-on-individual-cafs'; + next arg; }; + + /^-ignore-scc$/ && do { + # forces ignore of scc annotations even if profiling + $PROFignore_scc = '-W'; + next arg; }; + + /^-G(.*)$/ && do { push(@HsC_flags, "-G=$1"); # set group for cost centres + next arg; }; + + /^-unprof-scc-auto/ && do { + # generate auto SCCs on top level bindings when not profiling. + # Used to measure optimisation effects of presence of sccs. + $UNPROFscc_auto = ( /-all/ ) + ? '-fauto-sccs-on-all-toplevs' + : '-fauto-sccs-on-exported-toplevs'; + next arg; }; + + #--------- ticky/concurrent/parallel ----------------------------------- + # we sort out the details a bit later on + + /^-concurrent$/ && do { $CONCURing = 'c'; next arg; }; # concurrent Haskell + /^-gransim$/ && do { $GRANing = 'g'; next arg; }; # GranSim + /^-ticky$/ && do { $TICKYing = 't'; next arg; }; # ticky-ticky + /^-parallel$/ && do { $PARing = 'p'; next arg; }; # parallel Haskell + + #-------------- "user ways" -------------------------------------------- + + (/^-user-setup-([a-oA-Z])$/ ) && + do { + /^-user-setup-([a-oA-Z])$/ && do { $BuildTag = "_$1"; }; + + local($stuff) = $UserSetupOpts{$BuildTag}; + local(@opts) = split(/\s+/, $stuff); + + # feed relevant ops into the arg-processing loop (if any) + unshift(@Args, @opts) if $#opts >= 0; + + next arg; }; + + #---------- set search paths for libraries and things ------------------ + + # we do -i just like HBC (-i clears the list; -i + # prepends the items to the list); -I is for including C .h files. + + /^-i$/ && do { @Import_dir = (); # import path cleared! + @SysImport_dir = (); + print STDERR "WARNING: import paths cleared by `-i'\n"; + next arg; }; + + /^-i(.*)/ && do { local(@new_items) + = split( /:/, &grab_arg_arg(*Args,'-i', $1)); + unshift(@Import_dir, @new_items); + next arg; }; + + /^-I(.*)/ && do { push(@Include_dir, &grab_arg_arg(*Args,'-I', $1)); next arg; }; + /^-L(.*)/ && do { push(@UserLibrary_dir, &grab_arg_arg(*Args,'-L', $1)); next arg; }; + /^-l(.*)/ && do { push(@UserLibrary,'-l'.&grab_arg_arg(*Args,'-l', $1)); next arg; }; + + /^-syslib(.*)/ && do { local($syslib) = &grab_arg_arg(*Args,'-syslib',$1); + print STDERR "$Pgm: no such system library (-syslib): $syslib\n", + $Status++ unless $syslib =~ /^(hbc|ghc|posix|contrib)$/; + + unshift(@SysImport_dir, + ${INSTALLING} + ? "$InstSysLibDir/$syslib/imports" + : "$TopPwd/hslibs/$syslib/src"); + + if ( ${INSTALLING} ) { + push(@SysLibrary_dir, + ("$InstSysLibDir")); + } else { + push(@SysLibrary_dir, + ("$TopPwd/hslibs/$syslib" + ,"$TopPwd/hslibs/$syslib/cbits")); + } + + push(@SysLibrary, "-lHS$syslib"); + push(@SysLibrary, "-lHS${syslib}_cbits") + unless $syslib eq 'contrib'; #HACK! it has no cbits + + next arg; }; + + #======================================================================= + # various flags that we can harmlessly send to one program or another + # (we will later "reclaim" some of the compiler ones now sent to gcc) + #======================================================================= + + #---------- this driver itself (ghc) ----------------------------------- + # these change what executable is run for each phase: + /^-pgmL(.*)$/ && do { $Unlit = $1; next arg; }; + /^-pgmP(.*)$/ && do { $HsCpp = $1; next arg; }; + /^-pgmC(.*)$/ && do { $HsC = $1; next arg; }; + /^-pgmcO?(.*)$/ && do { $CcRegd = $1; next arg; }; # the O? for back compat + /^-pgma(.*)$/ && do { $As = $1; next arg; }; + /^-pgml(.*)$/ && do { $Lnkr = $1; next arg; }; + /^-pgmdep(.*)$/ && do { $MkDependHS = $1; next arg; }; + + #---------- the get-anything-through opts (all pgms) ------------------- + # these allow arbitrary option-strings to go to any phase: + /^-optL(.*)$/ && do { push(@Unlit_flags, $1); next arg; }; + /^-optP(.*)$/ && do { push(@HsCpp_flags, $1); next arg; }; + /^-optCrts(.*)$/&& do { push(@HsC_rts_flags, $1); next arg; }; + /^-optC(.*)$/ && do { push(@HsC_flags, $1); next arg; }; + /^-optcpp(.*)$/ && do { push(@Cpp_define, $1); next arg; }; + /^-optc(.*)$/ && do { push(@CcBoth_flags, $1); next arg; }; + /^-opta(.*)$/ && do { push(@As_flags, $1); next arg; }; + /^-optl(.*)$/ && do { push(@Ld_flags, $1); next arg; }; + /^-optdep(.*)$/ && do { push(@MkDependHS_flags, $1); next arg; }; + + #---------- Haskell C pre-processor (hscpp) ---------------------------- + /^-D(.*)/ && do { push(@HsCpp_flags, "'-D".&grab_arg_arg(*Args,'-D',$1)."'"); next arg; }; + /^-U(.*)/ && do { push(@HsCpp_flags, "'-U".&grab_arg_arg(*Args,'-U',$1)."'"); next arg; }; + + /^-genSPECS/ && do { $Cpp_flag_set = 1; + $genSPECS_flag = $_; + next arg; }; + + #---------- post-Haskell "assembler"------------------------------------ + /^-ddump-raw-asm$/ && do { $Dump_raw_asm = 1; next arg; }; + /^-ddump-asm-splitting-info$/ && do { $Dump_asm_splitting_info = 1; next arg; }; + + #---------- Haskell compiler (hsc) ------------------------------------- + + /^-keep-hc-files?-too$/ && do { $Keep_hc_file_too = 1; next arg; }; + /^-keep-s-files?-too$/ && do { $Keep_s_file_too = 1; next arg; }; + + /^-fhaskell-1\.3$/ && do { next arg; }; # a no-op right now + + /^-fignore-interface-pragmas$/ && do { push(@HsC_flags, $_); next arg; }; + + /^-fno-implicit-prelude$/ && do { $NoImplicitPrelude= 1; push(@HsC_flags, $_); next arg; }; + # don't do stack checking using page fault `trick'. + # (esoteric). + /^-fstack-check$/ && do { $StkChkByPageFaultOK = 0; next arg; }; + # + # have the compiler proper generate concurrent code, + # really only used when you want to configure your own + # special user compilation way. (Use -concurrent when + # compiling `Concurrent Haskell' programs). + # + # (ditto for -fgransim, fscc-profiling and -fticky-ticky) + # + /^-fconcurrent$/ && do { push(@HsC_flags,$_); next arg; }; + /^-fscc-profiling$/ && do { push(@HsC_flags,$_); next arg; }; + /^-fticky-ticky$/ && do { push(@HsC_flags,$_); next arg; }; + /^-fgransim$/ && do { push(@HsC_flags,$_); next arg; }; + + /^-user-prelude-force/ && do { # ignore if not -user-prelude + next arg; }; + + /^-split-objs/ && do { + if ( $TargetPlatform !~ /^(alpha|hppa1\.1|i386|m68k|mips|powerpc|sparc)-/ ) { + $SplitObjFiles = 0; + print STDERR "WARNING: don't know how to split objects on this platform: $TargetPlatform\n`-split-objs' option ignored\n"; + } else { + $SplitObjFiles = 1; + $HscOut = '-C='; + + push(@HsC_flags, "-fglobalise-toplev-names"); + push(@CcBoth_flags, '-DUSE_SPLIT_MARKERS'); + + require('ghc-split.prl') + || &tidy_up_and_die(1,"$Pgm: panic: can't load ghc-split.prl!\n"); + } + next arg; }; + + /^-fglasgow-exts$/ + && do { push(@HsC_flags, $_); + push(@HsP_flags, '-N'); + +# push(@HsC_flags, '-fshow-import-specs'); + + next arg; }; + + /^-fspeciali[sz]e-unboxed$/ + && do { $Oopt_DoSpecialise = '-fspecialise'; + $Oopt_SpecialiseUnboxed = '-fspecialise-unboxed'; + next arg; }; + /^-fspeciali[sz]e$/ + && do { $Oopt_DoSpecialise = '-fspecialise'; next arg; }; + /^-fno-speciali[sz]e$/ + && do { $Oopt_DoSpecialise = ''; next arg; }; + + +# Now the foldr/build options, which are *on* by default (for -O). + + /^-ffoldr-build$/ + && do { $Oopt_FoldrBuild = 1; + $Oopt_FB_Support = '-fdo-arity-expand'; + #print "Yes F/B\n"; + next arg; }; + + /^-fno-foldr-build$/ + && do { $Oopt_FoldrBuild = 0; + $Oopt_FB_Support = ''; + next arg; }; + + /^-fno-foldr-build-rule$/ + && do { $Oopt_FoldrBuild = 0; + next arg; }; + + /^-fno-enable-tech$/ + && do { $Oopt_FB_Support = ''; + next arg; }; + + /^-fno-snapback-to-append$/ + && do { $Oopt_FoldrBuildInline .= ' -fdo-not-fold-back-append '; + next arg; }; + + # --------------- + + /^-fasm-(.*)$/ && do { $HscOut = '-S='; next arg; }; # force using nativeGen + /^-fvia-C$/ && do { $HscOut = '-C='; next arg; }; # force using C compiler + + # --------------- + + /^(-funfolding-use-threshold)(.*)$/ + && do { $Oopt_UnfoldingUseThreshold = $1 . &grab_arg_arg(*Args,$1, $2); + next arg; }; + + /^(-fmax-simplifier-iterations)(.*)$/ + && do { $Oopt_MaxSimplifierIterations = $1 . &grab_arg_arg(*Args,$1, $2); + next arg; }; + + /^-fno-pedantic-bottoms$/ + && do { $Oopt_PedanticBottoms = ''; next arg; }; + + /^-fdo-monad-eta-expansion$/ + && do { $Oopt_MonadEtaExpansion = $_; next arg; }; + + /^-fno-let-from-(case|app|strict-let)$/ # experimental, really (WDP 95/10) + && do { push(@HsC_flags, $_); next arg; }; + + /^(-freturn-in-regs-threshold)(.*)$/ + && do { local($what) = $1; + local($num) = &grab_arg_arg(*Args,$what, $2); + if ($num < 2 || $num > 8) { + die "Bad experimental flag: $_\n"; + } else { + $HscOut = '-C='; # force using C compiler + push(@HsC_flags, "$what$num"); + push(@CcRegd_flags, "-D__STG_REGS_AVAIL__=$num"); + } + next arg; }; + + # --------------- Warnings etc. ------ + + /^-f(show-import-specs)/ + && do { push(@HsC_flags, $_); next arg; }; + + # for now, just -fwarn-name-shadowing + /^-fwarn-(.*)$/ && do { push(@HsC_flags, $_); next arg; }; + /^-fno-(.*)$/ && do { push(@HsC_antiflags, "-f$1"); + &squashHscFlag("-f$1"); + next arg; }; + + # --------------- platform specific flags (for gcc mostly) ---------------- + + /^-mlong-calls$/ && do { # for GCC for HP-PA boxes, + # for 2.6.x..?, does not apply for 2.7.2 + # any longer. + unshift(@CcBoth_flags, ( $_ )); + next arg; }; + + /^-m(v8|sparclite|cypress|supersparc|cpu=(cypress|supersparc))$/ + && do { # for GCC for SPARCs + unshift(@CcBoth_flags, ( $_ )); + next arg; }; + + /^-monly-([432])-regs/ && do { # for iX86 boxes only; no effect otherwise + $StolenX86Regs = $1; + next arg; }; + + #*************** ... and lots of debugging ones (form: -d* ) + + # -d(no-)core-lint is done this way so it is turn-off-able. + /^-dcore-lint/ && do { $CoreLint = '-dcore-lint'; next arg; }; + /^-dno-core-lint/ && do { $CoreLint = ''; next arg; }; + # Ditto for STG lint + /^-dstg-lint/ && do { $StgLint = '-dstg-lint'; next arg; }; + /^-dno-stg-lint/ && do { $StgLint = ''; next arg; }; + + /^-d(dump|ppr)-/ && do { push(@HsC_flags, $_); next arg; }; + /^-dverbose-(simpl|stg)/ && do { push(@HsC_flags, $_); next arg; }; + /^-dshow-passes/ && do { push(@HsC_flags, $_); next arg; }; + /^-dshow-rn-trace/ && do { push(@HsC_flags, $_); next arg; }; + /^-dsource-stats/ && do { push(@HsC_flags, $_); next arg; }; + /^-dsimplifier-stats/ && do { push(@HsC_flags, $_); next arg; }; + /^-dstg-stats/ && do { $Oopt_StgStats = $_; next arg; }; + + #*************** ... and now all these -R* ones for its runtime system... + + /^-Rscale-sizes?(.*)/ && do { + $Scale_sizes_by = &grab_arg_arg(*Args,'-Rscale-sizes', $1); + next arg; }; + + /^(-H|-Rmax-heapsize)(.*)/ && do { + local($heap_size) = &grab_arg_arg(*Args,$1, $2); + if ($heap_size =~ /(\d+)[Kk]$/) { + $heap_size = $1 * 1000; + } elsif ($heap_size =~ /(\d+)[Mm]$/) { + $heap_size = $1 * 1000 * 1000; + } elsif ($heap_size =~ /(\d+)[Gg]$/) { + $heap_size = $1 * 1000 * 1000 * 1000; + } + if ($heap_size <= 0) { + print STDERR "$Pgm: resetting heap-size to zero!!! $heap_size\n"; + $Specific_heap_size = 0; + + # if several heap sizes given, take the largest... + } elsif ($heap_size >= $Specific_heap_size) { + $Specific_heap_size = $heap_size; + } else { + print STDERR "$Pgm: ignoring heap-size-setting option ($_)...not the largest seen\n"; + } + next arg; }; + + /^-(K|Rmax-(stk|stack)size)(.*)/ && do { + local($flag) = $1; + local($stk_size) = &grab_arg_arg(*Args,'-Rmax-stksize', $3); + if ($stk_size =~ /(\d+)[Kk]$/) { + $stk_size = $1 * 1000; + } elsif ($stk_size =~ /(\d+)[Mm]$/) { + $stk_size = $1 * 1000 * 1000; + } elsif ($stk_size =~ /(\d+)[Gg]$/) { + $stk_size = $1 * 1000 * 1000 * 1000; + } + if ($stk_size <= 0) { + print STDERR "$Pgm: resetting stack-size to zero!!! $stk_size\n"; + $Specific_stk_size = 0; + + # if several stack sizes given, take the largest... + } elsif ($stk_size >= $Specific_stk_size) { + $Specific_stk_size = $stk_size; + } else { + print STDERR "$Pgm: ignoring stack-size-setting option ($flag $stk_size)...not the largest seen\n"; + } + next arg; }; + + /^-Rgc-stats$/ && do { $CollectingGCstats++; + # the two RTSs do this diff ways; we will try to compensate + next arg; }; + + /^-Rghc-timing/ && do { $CollectGhcTimings = 1; next arg; }; + + #---------- C high-level assembler (gcc) ------------------------------- + /^-(Wall|ansi|pedantic)$/ && do { push(@CcBoth_flags, $_); next arg; }; + + # -dgcc-lint is a useful way of making GCC very fussy. + # From alan@spri.levels.unisa.edu.au (Alan Modra). + /^-dgcc-lint$/ && do { push(@CcBoth_flags, '-Wall -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wnested-externs'); next arg; }; + # An alternate set, from mark@sgcs.com (Mark W. Snitily) + # -Wall -Wstrict-prototypes -Wmissing-prototypes -Wcast-align -Wshadow + + # inject "#include " into the compiler's C output! + + /^-#include(.*)/ && do { + local($to_include) = &grab_arg_arg(*Args,'-#include', $1); + push(@CcInjects, "#include $to_include\n"); + next arg; }; + + #---------- Linker (gcc, really) --------------------------------------- + + /^-static$/ && do { push(@Ld_flags, $_); next arg; }; + + #---------- mixed cc and linker magic ---------------------------------- + # this optimisation stuff is finally sorted out later on... + + /^-O2-for-C$/ && do { $MinusO2ForC = 1; next arg; }; + + /^-O[1-2]?$/ && do { + local($opt_lev) = ( /^-O2$/ ) ? 2 : 1; # max 'em + $OptLevel = ( $opt_lev > $OptLevel ) ? $opt_lev : $OptLevel; + + $HscOut = '-C=' if $OptLevel == 2; # force use of C compiler + next arg; }; + + /^-Onot$/ && do { $OptLevel = 0; next arg; }; # # set it to + + /^-Ofile(.*)/ && do { + $OptLevel = 3; + local($ofile) = &grab_arg_arg(*Args,'-Ofile', $1); + @HsC_minusO3_flags = (); + + open(OFILE, "< $ofile") || die "Can't open $ofile!\n"; + while () { + chop; + s/\#.*//; # death to comments + s/[ \t]+//g; # death to whitespace + next if /^$/; # ditto, blank lines + s/([()*{}])/\\$1/g; # protect shell metacharacters + if ( /^C:(.*)/ ) { + push(@CcBoth_flags, $1); + } else { + push(@HsC_minusO3_flags, $_); + } + } + close(OFILE); + next arg; }; + + /^-debug$/ && do { # all this does is mark a .hc/.o as "debugging" + # in the consistency info + $DEBUGging = 'd'; + next arg; }; + + #---------- linking .a file -------------------------------------------- + + /^-Main(.*)/ && do { + # specifies main or mainPrimIO to be linked + $Ld_main = $1; + next arg; }; + + #---------- catch unrecognized flags ----------------------------------- + + /^-./ && do { + print STDERR "$Pgm: unrecognised option: $_\n"; + $Status++; + next arg; }; + +} + +} # end of processArgs + +\end{code}