--- /dev/null
+%************************************************************************
+%* *
+\section[Driver-obj-splitting]{Splitting into many \tr{.o} files (for libraries)}
+%* *
+%************************************************************************
+
+\begin{code}
+$TargetPlatform = $TARGETPLATFORM;
+
+($Pgm = $0) =~ s|.*/||;
+$ifile = $ARGV[0];
+$Tmp_prefix = $ARGV[1];
+$Output = $ARGV[2];
+
+&split_asm_file($ifile);
+
+open(OUTPUT, "> $Output") || &tidy_up_and_die(1,"$Pgm: failed to open `$Output' (to write)\n");
+print OUTPUT "$NoOfSplitFiles\n";
+close(OUTPUT);
+
+exit(0);
+\end{code}
+
+
+\begin{code}
+sub split_asm_file {
+ local($asm_file) = @_;
+
+ open(TMPI, "< $asm_file") || &tidy_up_and_die(1,"$Pgm: failed to open `$asm_file' (to read)\n");
+
+ &collectExports_hppa() if $TargetPlatform =~ /^hppa/;
+ &collectExports_mips() if $TargetPlatform =~ /^mips/;
+ &collectDyldStuff_darwin() if $TargetPlatform =~ /-apple-darwin/;
+
+ $octr = 0; # output file counter
+ $* = 1; # multi-line matches are OK
+
+ %LocalConstant = (); # we have to subvert C compiler's commoning-up of constants...
+
+ $s_stuff = &ReadTMPIUpToAMarker( '', $octr );
+ # that first stuff is a prologue for all .s outputs
+ $prologue_stuff = &process_asm_block ( $s_stuff );
+ # $_ already has some of the next stuff in it...
+
+# &tidy_up_and_die(1,"$Pgm: no split markers in .s file!\n")
+# if $prologue_stuff eq $s_stuff;
+
+ # lie about where this stuff came from
+ # Note the \Q: this ignores regex meta-chars in $Tmp_prefix.
+ $prologue_stuff =~ s/\Q"$Tmp_prefix.c"/"$ifile_root.hc"/g;
+
+ while ( $_ ne '' ) { # not EOF
+ $octr++;
+
+ # grab and de-mangle a section of the .s file...
+ $s_stuff = &ReadTMPIUpToAMarker ( $_, $octr );
+ $this_piece = &process_asm_block ( $s_stuff );
+
+ # output to a file of its own
+ # open a new output file...
+ $ofname = "${Tmp_prefix}__${octr}.s";
+ open(OUTF, "> $ofname") || die "$Pgm: can't open output file: $ofname\n";
+
+ print OUTF $prologue_stuff;
+ print OUTF $this_piece;
+
+ close(OUTF)
+ || &tidy_up_and_die(1,"$Pgm:Failed writing ${Tmp_prefix}__${octr}.s\n");
+ }
+
+ # Make sure that we still have some output when the input file is empty
+ if ( $octr == 0 ) {
+ $octr = 1;
+ $ofname = "${Tmp_prefix}__${octr}.s";
+ open(OUTF, "> $ofname") || die "$Pgm: can't open output file: $ofname\n";
+
+ print OUTF $prologue_stuff;
+
+ close(OUTF)
+ || &tidy_up_and_die(1,"$Pgm:Failed writing ${Tmp_prefix}__${octr}.s\n");
+ }
+
+ $NoOfSplitFiles = $octr;
+
+ close(TMPI) || &tidy_up_and_die(1,"Failed reading $asm_file\n");
+}
+
+sub collectExports_hppa { # Note: HP-PA only
+
+ %LocalExport = (); # NB: global table
+
+ while(<TMPI>) {
+ if (/^\s+\.EXPORT\s+([^,]+),.*\n/) {
+ local($label) = $1;
+ local($body) = "\t.IMPORT $label";
+ if (/,DATA/) {
+ $body .= ",DATA\n";
+ } else {
+ $body .= ",CODE\n";
+ }
+ $label =~ s/\$/\\\$/g;
+ $LocalExport{$label} = $body;
+ }
+ }
+
+ seek(TMPI, 0, 0);
+}
+
+sub collectExports_mips { # Note: MIPS only
+ # (not really sure this is necessary [WDP 95/05])
+
+ $UNDEFINED_FUNS = ''; # NB: global table
+
+ while(<TMPI>) {
+ $UNDEFINED_FUNS .= $_ if /^\t\.globl\s+\S+ \.\S+\n/;
+ # just save 'em all
+ }
+
+ seek(TMPI, 0, 0);
+}
+
+sub collectDyldStuff_darwin {
+ local($chunk_label,$label,$cur_section,$section,$chunk,$alignment,$cur_alignment);
+
+ %DyldChunks = (); # NB: global table
+ %DyldChunksDefined = (); # NB: global table
+
+ $cur_section = '';
+ $section = '';
+ $label = '';
+ $chunk = '';
+ $alignment = '';
+ $cur_alignment = '';
+
+ while ( 1 ) {
+ $_ = <TMPI>;
+ if ( $_ eq '' || /^L(_.+)\$.+:/ ) {
+ if ( $label ne '' ) {
+ $DyldChunksDefined{$label} .= $section . $alignment . $chunk_label . $ chunk;
+ if( $section =~ s/\.data/\.non_lazy_symbol_pointer/ ) {
+ $chunk = "\t.indirect_symbol $label\n\t.long 0\n";
+ }
+ $DyldChunks{$label} .= $section . $alignment . $chunk_label . $chunk;
+ print STDERR "### dyld chunk: $label\n$section$alignment$chunk\n###\n" if $Dump_asm_splitting_info;
+ }
+ last if ($_ eq '');
+
+ $chunk = '';
+ $chunk_label = $_;
+ $label = $1;
+ $section = $cur_section;
+ $alignment = $cur_alignment;
+ print STDERR "label: $label\n" if $Dump_asm_splitting_info;
+ } elsif ( /^\s*\.(symbol_stub|picsymbol_stub|lazy_symbol_pointer|non_lazy_symbol_pointer|data|section __IMPORT,.*)/ ) {
+ $cur_section = $_;
+ printf STDERR "section: $cur_section\n" if $Dump_asm_splitting_info;
+ $cur_alignment = ''
+ } elsif ( /^\s*\.section\s+__TEXT,__symbol_stub1,symbol_stubs,pure_instructions,\d+/ ) {
+ $cur_section = $_;
+ printf STDERR "section: $cur_section\n" if $Dump_asm_splitting_info;
+ # always make sure we align things
+ $cur_alignment = '\t.align 2'
+ } elsif ( /^\s*\.align.*/ ) {
+ $cur_alignment = $_;
+ printf STDERR "alignment: $cur_alignment\n" if $Dump_asm_splitting_info;
+ } else {
+ $chunk .= $_;
+ }
+ }
+
+ seek(TMPI, 0, 0);
+}
+
+sub ReadTMPIUpToAMarker {
+ local($str, $count) = @_; # already read bits
+
+
+ for ( $_ = <TMPI>; $_ ne '' && ! /_?__stg_split_marker/; $_ = <TMPI> ) {
+ $str .= $_;
+ }
+ # if not EOF, then creep forward until next "real" line
+ # (throwing everything away).
+ # that first "real" line will stay in $_.
+
+ # This loop is intended to pick up the body of the split_marker function
+ # Note that the assembler mangler will already have eliminated this code
+ # if it's been invoked (which it probably has).
+
+ while ($_ ne '' && (/_?__stg_split_marker/
+ || /^L[^C].*:$/
+ || /^\.stab/
+ || /\t\.proc/
+ || /\t\.stabd/
+ || /\t\.even/
+ || /\tunlk a6/
+ || /^\t!#PROLOGUE/
+ || /\t\.prologue/
+ || /\t\.frame/
+ # || /\t\.end/ NOT! Let the split_marker regexp catch it
+ # || /\t\.ent/ NOT! Let the split_marker regexp catch it
+ || /^\s+(save|retl?|restore|nop)/)) {
+ $_ = <TMPI>;
+ }
+
+ print STDERR "### BLOCK:$count:\n$str" if $Dump_asm_splitting_info;
+
+ # return str
+ $str =~ tr/\r//d if $TargetPlatform =~ /-mingw32$/; # in case Perl doesn't convert line endings
+ $str;
+}
+\end{code}
+
+We must (a)~strip the marker off the block, (b)~record any literal C
+constants that are defined here, and (c)~inject copies of any C constants
+that are used-but-not-defined here.
+
+\begin{code}
+sub process_asm_block {
+ local($str) = @_;
+
+ return(&process_asm_block_darwin($str))
+ if $TargetPlatform =~ /-apple-darwin/;
+ return(&process_asm_block_m68k($str)) if $TargetPlatform =~ /^m68k-/;
+ return(&process_asm_block_sparc($str)) if $TargetPlatform =~ /^sparc-/;
+ return(&process_asm_block_iX86($str)) if $TargetPlatform =~ /^i[34]86-/;
+ return(&process_asm_block_x86_64($str)) if $TargetPlatform =~ /^x86_64-/;
+ return(&process_asm_block_alpha($str)) if $TargetPlatform =~ /^alpha-/;
+ return(&process_asm_block_hppa($str)) if $TargetPlatform =~ /^hppa/;
+ return(&process_asm_block_mips($str)) if $TargetPlatform =~ /^mips-/;
+ return(&process_asm_block_powerpc_linux($str))
+ if $TargetPlatform =~ /^powerpc-[^-]+-linux/;
+
+ # otherwise...
+ &tidy_up_and_die(1,"$Pgm: no process_asm_block for $TargetPlatform\n");
+}
+
+sub process_asm_block_sparc {
+ local($str) = @_;
+
+ # strip the marker
+ if ( $OptimiseC ) {
+ $str =~ s/_?__stg_split_marker.*:\n//;
+ } else {
+ $str =~ s/(\.text\n\t\.align .\n)\t\.global\s+.*_?__stg_split_marker.*\n\t\.proc.*\n/$1/;
+ $str =~ s/(\t\.align .\n)\t\.global\s+.*_?__stg_split_marker.*\n\t\.proc.*\n/$1/;
+ }
+
+ # make sure the *.hc filename gets saved; not just ghc*.c (temp name)
+ $str =~ s/^\.stabs "(ghc\d+\.c)"/.stabs "$ifile_root.hc"/g; # HACK HACK
+
+ # remove/record any literal constants defined here
+ while ( $str =~ /(\t\.align .\n\.?(L?LC\d+):\n(\t\.asci[iz].*\n)+)/ ) {
+ local($label) = $2;
+ local($body) = $1;
+
+ &tidy_up_and_die(1,"Local constant label $label already defined!\n")
+ if $LocalConstant{$label};
+
+ $LocalConstant{$label} = $body;
+
+ $str =~ s/\t\.align .\n\.?LL?C\d+:\n(\t\.asci[iz].*\n)+//;
+ }
+
+ # inject definitions for any local constants now used herein
+ foreach $k (keys %LocalConstant) {
+ if ( $str =~ /\b$k\b/ ) {
+ $str = $LocalConstant{$k} . $str;
+ }
+ }
+
+ print STDERR "### STRIPPED BLOCK (sparc):\n$str" if $Dump_asm_splitting_info;
+
+ $str;
+}
+
+sub process_asm_block_m68k {
+ local($str) = @_;
+
+ # strip the marker
+
+ $str =~ s/(\.text\n\t\.even\n)\t\.globl\s+.*_?__stg_split_marker.*\n/$1/;
+ $str =~ s/(\t\.even\n)\t\.globl\s+.*_?__stg_split_marker.*\n/$1/;
+
+ # it seems prudent to stick on one of these:
+ $str = "\.text\n\t.even\n" . $str;
+
+ # remove/record any literal constants defined here
+ while ( $str =~ /((LC\d+):\n\t\.ascii.*\n)/ ) {
+ local($label) = $2;
+ local($body) = $1;
+
+ &tidy_up_and_die(1,"Local constant label $label already defined!\n")
+ if $LocalConstant{$label};
+
+ $LocalConstant{$label} = $body;
+
+ $str =~ s/LC\d+:\n\t\.ascii.*\n//;
+ }
+
+ # inject definitions for any local constants now used herein
+ foreach $k (keys %LocalConstant) {
+ if ( $str =~ /\b$k\b/ ) {
+ $str = $LocalConstant{$k} . $str;
+ }
+ }
+
+ print STDERR "### STRIPPED BLOCK (m68k):\n$str" if $Dump_asm_splitting_info;
+
+ $str;
+}
+
+sub process_asm_block_alpha {
+ local($str) = @_;
+
+ # strip the marker
+ if ( $OptimiseC ) {
+ $str =~ s/_?__stg_split_marker.*:\n//;
+ } else {
+ $str =~ s/(\t\.align .\n)\t\.globl\s+.*_?__stg_split_marker.*\n\t\.ent.*\n/$1/;
+ }
+
+ # remove/record any literal constants defined here
+ while ( $str =~ /(\.rdata\n\t\.align \d\n)?(\$(C\d+):\n\t\..*\n)/ ) {
+ local($label) = $3;
+ local($body) = $2;
+
+ &tidy_up_and_die(1,"Local constant label $label already defined!\n")
+ if $LocalConstant{$label};
+
+ $LocalConstant{$label} = ".rdata\n\t.align 3\n" . $body . "\t.text\n";
+
+ $str =~ s/(\.rdata\n\t\.align \d\n)?\$C\d+:\n\t\..*\n//;
+ }
+
+ # inject definitions for any local constants now used herein
+ foreach $k (keys %LocalConstant) {
+ if ( $str =~ /\$\b$k\b/ ) {
+ $str = $LocalConstant{$k} . $str;
+ }
+ }
+
+ # Slide the dummy direct return code into the vtbl .ent/.end block,
+ # to keep the label fixed if it's the last thing in a module, and
+ # to avoid having any anonymous text that the linker will complain about
+ $str =~ s/(\t\.end [A-Za-z0-9_]+)\n\t# nop/\tnop\n$1/g;
+
+ print STDERR "### STRIPPED BLOCK (alpha):\n$str" if $Dump_asm_splitting_info;
+
+ $str;
+}
+
+sub process_asm_block_iX86 {
+ local($str) = @_;
+
+ # strip the marker
+
+ $str =~ s/(\.text\n\t\.align .(,0x90)?\n)\.globl\s+.*_?__stg_split_marker.*\n/$1/;
+ $str =~ s/(\t\.align .(,0x90)?\n)\.globl\s+.*_?__stg_split_marker.*\n/$1/;
+
+ # it seems prudent to stick on one of these:
+ $str = "\.text\n\t.align 4\n" . $str;
+
+ # remove/record any literal constants defined here
+ # [perl made uglier to work around the perl 5.7/5.8 bug documented at
+ # http://bugs6.perl.org/rt2/Ticket/Display.html?id=1760 and illustrated
+ # by the seg fault of perl -e '("x\n" x 5000) =~ /(.*\n)+/'
+ # -- ccshan 2002-09-05]
+ while ( ($str =~ /(\.?(LC\d+):\n(\t\.(ascii|string).*\n|\s*\.byte.*\n){1,100})/ )) {
+ local($label) = $2;
+ local($body) = $1;
+ local($prefix, $suffix, $*) = ($`, $', 0);
+
+ &tidy_up_and_die(1,"Local constant label $label already defined!\n")
+ if $LocalConstant{$label};
+
+ while ( $suffix =~ /^((\t\.(ascii|string).*\n|\s*\.byte.*\n){1,100})/ ) {
+ $body .= $1;
+ $suffix = $';
+ }
+ $LocalConstant{$label} = $body;
+ $str = $prefix . $suffix;
+ }
+
+ # inject definitions for any local constants now used herein
+ foreach $k (keys %LocalConstant) {
+ if ( $str =~ /\b$k\b/ ) {
+ $str = $LocalConstant{$k} . $str;
+ }
+ }
+
+ print STDERR "### STRIPPED BLOCK (iX86):\n$str" if $Dump_asm_splitting_info;
+
+ $str;
+}
+\end{code}
+
+\begin{code}
+sub process_asm_block_x86_64 {
+ local($str) = @_;
+
+ # remove/record any literal constants defined here
+ # [perl made uglier to work around the perl 5.7/5.8 bug documented at
+ # http://bugs6.perl.org/rt2/Ticket/Display.html?id=1760 and illustrated
+ # by the seg fault of perl -e '("x\n" x 5000) =~ /(.*\n)+/'
+ # -- ccshan 2002-09-05]
+ while ( ($str =~ /(\.?(LC\d+):\n(\t\.(ascii|string).*\n|\s*\.byte.*\n){1,100})/ )) {
+ local($label) = $2;
+ local($body) = $1;
+ local($prefix, $suffix, $*) = ($`, $', 0);
+
+ &tidy_up_and_die(1,"Local constant label $label already defined!\n")
+ if $LocalConstant{$label};
+
+ while ( $suffix =~ /^((\t\.(ascii|string).*\n|\s*\.byte.*\n){1,100})/ ) {
+ $body .= $1;
+ $suffix = $';
+ }
+ $LocalConstant{$label} = $body;
+ $str = $prefix . $suffix;
+ }
+
+ # inject definitions for any local constants now used herein
+ foreach $k (keys %LocalConstant) {
+ if ( $str =~ /\b$k\b/ ) {
+ $str = $LocalConstant{$k} . $str;
+ }
+ }
+
+ print STDERR "### STRIPPED BLOCK (x86_64):\n$str" if $Dump_asm_splitting_info;
+
+ $str;
+}
+\end{code}
+
+\begin{code}
+sub process_asm_block_hppa {
+ local($str) = @_;
+
+ # strip the marker
+ $str =~ s/___stg_split_marker.*\n//;
+
+ # remove/record any imports defined here
+ while ( $str =~ /^(\s+\.IMPORT\s.*\n)/ ) {
+ $Imports .= $1;
+
+ $str =~ s/^\s+\.IMPORT.*\n//;
+ }
+
+ # remove/record any literal constants defined here
+ while ( $str =~ /^(\s+\.align.*\n(L\$C\d+)\n(\s.*\n)+); end literal\n/ ) {
+ local($label) = $2;
+ local($body) = $1;
+ local($prefix) = $`;
+ local($suffix) = $';
+ $label =~ s/\$/\\\$/g;
+
+ &tidy_up_and_die(1,"Local constant label $label already defined!\n")
+ if $LocalConstant{$label};
+
+ $LocalConstant{$label} = "\t.SPACE \$TEXT\$\n\t.SUBSPA \$LIT\$\n\n" . $body;
+
+ $str = $prefix . $suffix;
+ }
+
+ # inject definitions for any local constants now used herein
+ foreach $k (keys %LocalConstant) {
+ if ( $str =~ /\b$k\b/ ) {
+ $str = $LocalConstant{$k} . $str;
+ }
+ }
+
+ # inject required imports for local exports in other chunks
+ foreach $k (keys %LocalExport) {
+ if ( $str =~ /\b$k\b/ && ! /EXPORT\s+$k\b/ ) {
+ $str = $LocalExport{$k} . $str;
+ }
+ }
+
+ # inject collected imports
+
+ $str = $Imports . $str;
+
+ print STDERR "### STRIPPED BLOCK (hppa):\n$str" if $Dump_asm_splitting_info;
+
+ $str;
+}
+\end{code}
+
+\begin{code}
+sub process_asm_block_mips {
+ local($str) = @_;
+
+ # strip the marker
+ if ( $OptimiseC ) {
+ $str =~ s/_?__stg_split_marker.*:\n//;
+ } else {
+ $str =~ s/(\t\.align .\n)\t\.globl\s+.*_?__stg_split_marker.*\n\t\.ent.*\n/$1/;
+ }
+
+ # remove/record any literal constants defined here
+ while ( $str =~ /(\t\.rdata\n\t\.align \d\n)?(\$(LC\d+):\n(\t\.byte\t.*\n)+)/ ) {
+ local($label) = $3;
+ local($body) = $2;
+
+ &tidy_up_and_die(1,"Local constant label $label already defined!\n")
+ if $LocalConstant{$label};
+
+ $LocalConstant{$label} = "\t.rdata\n\t.align 2\n" . $body . "\t.text\n";
+
+ $str =~ s/(\t\.rdata\n\t\.align \d\n)?\$LC\d+:\n(\t\.byte\t.*\n)+//;
+ }
+
+ # inject definitions for any local constants now used herein
+ foreach $k (keys %LocalConstant) {
+ if ( $str =~ /\$\b$k\b/ ) {
+ $str = $LocalConstant{$k} . $str;
+ }
+ }
+
+ # Slide the dummy direct return code into the vtbl .ent/.end block,
+ # to keep the label fixed if it's the last thing in a module, and
+ # to avoid having any anonymous text that the linker will complain about
+ $str =~ s/(\t\.end [A-Za-z0-9_]+)\n\t# nop/\tnop\n$1/g;
+
+ $str .= $UNDEFINED_FUNS; # pin on gratuitiously-large amount of info
+
+ print STDERR "### STRIPPED BLOCK (mips):\n$str" if $Dump_asm_splitting_info;
+
+ $str;
+}
+\end{code}
+
+\begin{code}
+# The logic for both Darwin/PowerPC and Darwin/x86 ends up being the same.
+
+sub process_asm_block_darwin {
+ local($str) = @_;
+ local($dyld_stuff) = '';
+
+ # strip the marker
+ $str =~ s/___stg_split_marker.*\n//;
+
+ $str =~ s/L_.*\$.*:\n(.|\n)*//;
+
+ # remove/record any literal constants defined here
+ while ( $str =~ s/^(\s+.const.*\n\s+\.align.*\n(LC\d+):\n(\s\.(byte|short|long|fill|space|ascii).*\n)+)// ) {
+ local($label) = $2;
+ local($body) = $1;
+
+ &tidy_up_and_die(1,"Local constant label $label already defined!\n")
+ if $LocalConstant{$label};
+
+ $LocalConstant{$label} = $body;
+ }
+
+ # inject definitions for any local constants now used herein
+ foreach $k (keys %LocalConstant) {
+ if ( $str =~ /\b$k(\b|\[)/ ) {
+ $str = $LocalConstant{$k} . $str;
+ }
+ }
+
+ foreach $k (keys %DyldChunks) {
+ if ( $str =~ /\bL$k\$/ ) {
+ if ( $str =~ /^$k:$/ ) {
+ $dyld_stuff .= $DyldChunksDefined{$k};
+ } else {
+ $dyld_stuff .= $DyldChunks{$k};
+ }
+ }
+ }
+
+ $str .= "\n" . $dyld_stuff;
+
+ print STDERR "### STRIPPED BLOCK (darwin):\n$str" if $Dump_asm_splitting_info;
+
+ $str;
+}
+\end{code}
+
+\begin{code}
+sub process_asm_block_powerpc_linux {
+ local($str) = @_;
+
+ # strip the marker
+ $str =~ s/__stg_split_marker.*\n//;
+
+ # remove/record any literal constants defined here
+ while ( $str =~ s/^(\s+.section\s+\.rodata\n\s+\.align.*\n(\.LC\d+):\n(\s\.(byte|short|long|quad|2byte|4byte|8byte|fill|space|ascii|string).*\n)+)// ) {
+ local($label) = $2;
+ local($body) = $1;
+
+ &tidy_up_and_die(1,"Local constant label $label already defined!\n")
+ if $LocalConstant{$label};
+
+ $LocalConstant{$label} = $body;
+ }
+
+ # inject definitions for any local constants now used herein
+ foreach $k (keys %LocalConstant) {
+ if ( $str =~ /[\s,]$k\b/ ) {
+ $str = $LocalConstant{$k} . $str;
+ }
+ }
+
+ print STDERR "### STRIPPED BLOCK (powerpc linux):\n$str" if $Dump_asm_splitting_info;
+
+ $str;
+}
+\end{code}
+
+\begin{code}
+sub tidy_up_and_die {
+ local($return_val, $msg) = @_;
+ print STDERR $msg;
+ exit (($return_val == 0) ? 0 : 1);
+}
+\end{code}
projects / ghc-hetmet.git / blobdiff