Home
last modified time | relevance | path

Searched hist:"65 bb6d8deebf608ac2bd6c3eb60ad81cf5d30f60" (Results 1 – 1 of 1) sorted by relevance

/openbmc/u-boot/
H A DMakefile65bb6d8deebf608ac2bd6c3eb60ad81cf5d30f60 Fri Apr 18 05:09:51 CDT 2014 Masahiro Yamada <yamada.m@jp.panasonic.com> kbuild: build with -Werror=date-time if the compiler supports it

Using __DATE__, __TIME__ would make the build non-deterministic.

If the code needs to refer to build date/time, use U_BOOT_DATE and
U_BOOT_TIME in include/generated/timestamp_autogenerated.h instead.

This commit has been imported from Linux Kernel,
which should be applied to U-Boot too:

commit fe7c36c7bde12190341722af69358e42171162f3
Author: Josh Triplett <josh@joshtriplett.org>
Date: Mon Dec 23 13:56:06 2013 -0800

Makefile: Build with -Werror=date-time if the compiler supports it

GCC 4.9 and newer have a new warning -Wdate-time, which warns on any use
of __DATE__, __TIME__, or __TIMESTAMP__, which would make the build
non-deterministic. Now that the kernel does not use any of those
macros, turn on -Werror=date-time if available, to keep it that way.

The kernel already (optionally) records this information at build time
in a single place; other kernel code should not duplicate that.

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>