3 # headers_install prepare the listed header files for use in
4 # user space and copy the files to their destination.
6 # Usage: headers_install.pl odir installdir [files...]
7 # odir: dir to open files
8 # install: dir to install the files
9 # files: list of files to check
11 # Step in preparation for users space:
12 # 1) Drop all use of compiler.h definitions
13 # 2) Drop include of compiler.h
14 # 3) Drop all sections defined out by __KERNEL__ (using unifdef)
19 my ($readdir, $installdir, @files) = @ARGV;
21 my $unifdef = "scripts/unifdef -U__KERNEL__";
23 foreach my $file (@files) {
24 my $tmpfile = "$installdir/$file.tmp";
25 open(my $infile, '<', "$readdir/$file")
26 or die "$readdir/$file: $!\n";
27 open(my $outfile, '>', "$tmpfile") or die "$tmpfile: $!\n";
28 while (my $line = <$infile>) {
29 $line =~ s/([\s(])__user\s/$1/g;
30 $line =~ s/([\s(])__force\s/$1/g;
31 $line =~ s/([\s(])__iomem\s/$1/g;
32 $line =~ s/\s__attribute_const__\s/ /g;
33 $line =~ s/\s__attribute_const__$//g;
34 $line =~ s/^#include <linux\/compiler.h>//;
35 printf $outfile "%s", $line;
39 system $unifdef . " $tmpfile > $installdir/$file";