#!/usr/bin/perl -w## headers_install prepare the listed header files for use in# user space and copy the files to their destination.## 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## 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;my ($readdir, $installdir, $arch, @files) = @ARGV;my $unifdef = "scripts/unifdef -U__KERNEL__ -D__EXPORTED_HEADERS__";foreach my $file (@files) { my $tmpfile = "$installdir/$file.tmp"; open(my $in, '<', "$readdir/$file") or die "$readdir/$file: $!\n"; open(my $out, '>', $tmpfile) or die "$tmpfile: $!\n"; while (my $line = <$in>) { $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/\b__packed\b/__attribute__((packed))/g; $line =~ s/^#include <linux\/compiler.h>//; $line =~ s/(^|\s)(inline)\b/$1__$2__/g; $line =~ s/(^|\s)(asm)\b(\s|[(]|$)/$1__$2__$3/g; $line =~ s/(^|\s|[(])(volatile)\b(\s|[(]|$)/$1__$2__$3/g; printf {$out} "%s", $line; } close $out; close $in; system $unifdef . " $tmpfile > $installdir/$file"; # unifdef will exit 0 on success, and will exit 1 when the # file was processed successfully but no changes were made, # so abort only when it's higher than that. my $e = $? >> 8; if ($e > 1) { die "$tmpfile: $!\n"; } unlink $tmpfile;}exit 0;
#!/usr/bin/perl -w
#
# headers_install prepare the listed header files for use in
# user space and copy the files to their destination.
#
# Usage: headers_install.pl readdir installdir arch [files...]
# readdir: dir to open files
# installdir: dir to install the files
# arch: current architecture
# arch is used to force a reinstallation when the arch
# changes because kbuild then detect a command line change.
# files: list of files to check
#
# Step in preparation for users space:
# 1) Drop all use of compiler.h definitions
# 2) Drop include of compiler.h
# 3) Drop all sections defined out by __KERNEL__ (using unifdef)
use strict;
my ($readdir, $installdir, $arch, @files) = @ARGV;
my $unifdef = "scripts/unifdef -U__KERNEL__ -D__EXPORTED_HEADERS__";
foreach my $file (@files) {
my $tmpfile = "$installdir/$file.tmp";
open(my $in, '<', "$readdir/$file")
or die "$readdir/$file: $!\n";
open(my $out, '>', $tmpfile)
or die "$tmpfile: $!\n";
while (my $line = <$in>) {
$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/\b__packed\b/__attribute__((packed))/g;
$line =~ s/^#include <linux\/compiler.h>//;
$line =~ s/(^|\s)(inline)\b/$1__$2__/g;
$line =~ s/(^|\s)(asm)\b(\s|[(]|$)/$1__$2__$3/g;
$line =~ s/(^|\s|[(])(volatile)\b(\s|[(]|$)/$1__$2__$3/g;
printf {$out} "%s", $line;
}
close $out;
close $in;
system $unifdef . " $tmpfile > $installdir/$file";
# unifdef will exit 0 on success, and will exit 1 when the
# file was processed successfully but no changes were made,
# so abort only when it's higher than that.
my $e = $? >> 8;
if ($e > 1) {
die "$tmpfile: $!\n";
}
unlink $tmpfile;
}
exit 0;