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| author |   Joe Perches <joe@perches.com> | 2015-02-13 14:38:18 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2015-02-13 21:21:39 -0800 |
| commit | 62ec818f55ccc3e1a04a6634f8e541596778af5d (patch) | |
| tree | be3c61cd325d694c8a3d3e5b8d1d2f28199aa9c4 /scripts | |
| parent | bitmap, cpumask, nodemask: remove dedicated formatting functions (diff) | |
| download | linux-dev-62ec818f55ccc3e1a04a6634f8e541596778af5d.tar.xz linux-dev-62ec818f55ccc3e1a04a6634f8e541596778af5d.zip | |
checkpatch: emit an error when using predefined timestamp macros
Since commit fe7c36c7bde1 ("Makefile: Build with -Werror=date-time if
the compiler supports it"), use of __DATE__, __TIME__, and __TIMESTAMP__
has not been allowed.
As this test is gcc version specific (> 4.9), it hasn't prevented a few
new uses from creeping into the kernel sources.
Make checkpatch complain about them.
Signed-off-by: Joe Perches <joe@perches.com>
Original-patch-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'scripts')
| -rwxr-xr-x | scripts/checkpatch.pl | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index f0bb6d60c07b..501c286369c9 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -5089,6 +5089,12 @@ sub process { } } +# check for uses of __DATE__, __TIME__, __TIMESTAMP__ + while ($line =~ /\b(__(?:DATE|TIME|TIMESTAMP)__)\b/g) { + ERROR("DATE_TIME", + "Use of the '$1' macro makes the build non-deterministic\n" . $herecurr); + } + # check for use of yield() if ($line =~ /\byield\s*\(\s*\)/) { WARN("YIELD", |