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authorBen Hutchings <ben@decadent.org.uk>2015-07-08 22:07:16 +0300
committerJonathan Corbet <corbet@lwn.net>2015-07-10 20:03:25 +0300
commitb2c4105b080fb26d8fc9b89c846f5966137c6d40 (patch)
tree15e7651faebb363a267e0c76ab589e03c2b842f9 /scripts/kernel-doc
parentb44158b17099ed5c7c8f4bfb7029942adbfbc318 (diff)
downloadlinux-b2c4105b080fb26d8fc9b89c846f5966137c6d40.tar.xz
scripts/kernel-doc: Use $KBUILD_BUILD_TIMESTAMP as man page date
Together with the preceding changes, this allows man pages to be built reproducibly. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'scripts/kernel-doc')
-rwxr-xr-xscripts/kernel-doc15
1 files changed, 12 insertions, 3 deletions
diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index 71ada0073805..0ac1a07874cc 100755
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -253,11 +253,20 @@ my %highlights = %highlights_man;
my $blankline = $blankline_man;
my $modulename = "Kernel API";
my $function_only = 0;
+my $show_not_found = 0;
+
+my @build_time;
+if (defined($ENV{'KBUILD_BUILD_TIMESTAMP'}) &&
+ (my $seconds = `date -d"${ENV{'KBUILD_BUILD_TIMESTAMP'}}" +%s`) ne '') {
+ @build_time = gmtime($seconds);
+} else {
+ @build_time = localtime;
+}
+
my $man_date = ('January', 'February', 'March', 'April', 'May', 'June',
'July', 'August', 'September', 'October',
- 'November', 'December')[(localtime)[4]] .
- " " . ((localtime)[5]+1900);
-my $show_not_found = 0;
+ 'November', 'December')[$build_time[4]] .
+ " " . ($build_time[5]+1900);
# Essentially these are globals.
# They probably want to be tidied up, made more localised or something.