[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/os/linux/linux-3.4.x/scripts/headers_install.pl b/ap/os/linux/linux-3.4.x/scripts/headers_install.pl
new file mode 100644
index 0000000..48462be
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/scripts/headers_install.pl
@@ -0,0 +1,58 @@
+#!/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;