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scripts/headers_install.pl
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#!/usr/bin/perl -w |
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# # headers_install prepare the listed header files for use in # user space and copy the files to their destination. # |
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# Usage: headers_install.pl readdir installdir arch [files...] # readdir: dir to open files # installdir: dir to install the files # arch: current architecture # arch is used to force a reinstallation when the arch # changes because kbuild then detect a command line change. # files: list of files to check |
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# # Step in preparation for users space: # 1) Drop all use of compiler.h definitions # 2) Drop include of compiler.h # 3) Drop all sections defined out by __KERNEL__ (using unifdef) use strict; |
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my ($readdir, $installdir, $arch, @files) = @ARGV; |
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my $unifdef = "scripts/unifdef -U__KERNEL__"; foreach my $file (@files) { |
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local *INFILE; local *OUTFILE; |
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my $tmpfile = "$installdir/$file.tmp"; |
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open(INFILE, "<$readdir/$file") |
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or die "$readdir/$file: $! "; |
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open(OUTFILE, ">$tmpfile") or die "$tmpfile: $! "; while (my $line = <INFILE>) { |
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$line =~ s/([\s(])__user\s/$1/g; $line =~ s/([\s(])__force\s/$1/g; $line =~ s/([\s(])__iomem\s/$1/g; $line =~ s/\s__attribute_const__\s/ /g; $line =~ s/\s__attribute_const__$//g; $line =~ s/^#include <linux\/compiler.h>//; |
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printf OUTFILE "%s", $line; |
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} |
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close OUTFILE; close INFILE; |
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system $unifdef . " $tmpfile > $installdir/$file"; unlink $tmpfile; } exit 0; |