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43 lines
1.2 KiB
Perl
43 lines
1.2 KiB
Perl
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#!/usr/bin/perl
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#
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# headers_install prepare the listed header files for use in
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# user space and copy the files to their destination.
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#
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# Usage: headers_install.pl odir installdir [files...]
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# odir: dir to open files
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# install: dir to install the files
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# files: list of files to check
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#
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# Step in preparation for users space:
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# 1) Drop all use of compiler.h definitions
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# 2) Drop include of compiler.h
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# 3) Drop all sections defined out by __KERNEL__ (using unifdef)
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use strict;
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use warnings;
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my ($readdir, $installdir, @files) = @ARGV;
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my $unifdef = "scripts/unifdef -U__KERNEL__";
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foreach my $file (@files) {
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my $tmpfile = "$installdir/$file.tmp";
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open(my $infile, '<', "$readdir/$file")
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or die "$readdir/$file: $!\n";
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open(my $outfile, '>', "$tmpfile") or die "$tmpfile: $!\n";
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while (my $line = <$infile>) {
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$line =~ s/([\s(])__user\s/$1/g;
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$line =~ s/([\s(])__force\s/$1/g;
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$line =~ s/([\s(])__iomem\s/$1/g;
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$line =~ s/\s__attribute_const__\s/ /g;
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$line =~ s/\s__attribute_const__$//g;
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$line =~ s/^#include <linux\/compiler.h>//;
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printf $outfile "%s", $line;
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}
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close $outfile;
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close $infile;
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system $unifdef . " $tmpfile > $installdir/$file";
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unlink $tmpfile;
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}
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exit 0;
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