projects/linux·blob v2.6.27-rc1 · refs

45 lines · 1.4 KiB

1#!/usr/bin/perl
2#
3# headers_install prepare the listed header files for use in
4# user space and copy the files to their destination.
5#
6# Usage: headers_install.pl readdir installdir arch [files...]
7# readdir: dir to open files
8# installdir: dir to install the files
9# arch: current architecture
10# arch is used to force a reinstallation when the arch
11# changes because kbuild then detect a command line change.
12# files: list of files to check
13#
14# Step in preparation for users space:
15# 1) Drop all use of compiler.h definitions
16# 2) Drop include of compiler.h
17# 3) Drop all sections defined out by __KERNEL__ (using unifdef)
18
19use strict;
20use warnings;
21
22my ($readdir, $installdir, $arch, @files) = @ARGV;
23
24my $unifdef = "scripts/unifdef -U__KERNEL__";
25
26foreach my $file (@files) {
27 my $tmpfile = "$installdir/$file.tmp";
28 open(my $infile, '<', "$readdir/$file")
29 or die "$readdir/$file: $!\n";
30 open(my $outfile, '>', "$tmpfile") or die "$tmpfile: $!\n";
31 while (my $line = <$infile>) {
32 $line =~ s/([\s(])__user\s/$1/g;
33 $line =~ s/([\s(])__force\s/$1/g;
34 $line =~ s/([\s(])__iomem\s/$1/g;
35 $line =~ s/\s__attribute_const__\s/ /g;
36 $line =~ s/\s__attribute_const__$//g;
37 $line =~ s/^#include <linux\/compiler.h>//;
38 printf $outfile "%s", $line;
39 }
40 close $outfile;
41 close $infile;
42 system $unifdef . " $tmpfile > $installdir/$file";
43 unlink $tmpfile;
44}
45exit 0;