diff options
| author | Vagrant Cascadian <vagrant@debian.org> | 2016-06-16 12:28:40 -0700 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2016-06-24 17:23:10 -0400 |
| commit | 5847084f6bbd0778afb29f0574085d4210ea8cff (patch) | |
| tree | 2ccd6681ecc410829fb8598a3c4fc7ba95e608bc /tools/imagetool.h | |
| parent | 42ffa51fd46bc6fd4bf2c244f00a80df31d01596 (diff) | |
| download | u-boot-5847084f6bbd0778afb29f0574085d4210ea8cff.tar.gz | |
Respect SOURCE_DATE_EPOCH when building FIT images.
Embedding timestamps in FIT images results in unreproducible builds
for targets that generate a fit image, such as dra7xx_evm.
This patch uses the SOURCE_DATE_EPOCH environment variable, when set,
to use specified value for the date.
Thanks to HW42 for debugging the issue and providing the patch:
https://lists.alioth.debian.org/pipermail/reproducible-builds/Week-of-Mon-20160606/005722.html
For more information about reproducible builds and the
SOURCE_DATE_EPOCH specification:
https://reproducible-builds.org/specs/source-date-epoch/
https://reproducible-builds.org/
Signed-off-by: Vagrant Cascadian <vagrant@debian.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'tools/imagetool.h')
| -rw-r--r-- | tools/imagetool.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/tools/imagetool.h b/tools/imagetool.h index 1f2161cf61..6c1a9d3760 100644 --- a/tools/imagetool.h +++ b/tools/imagetool.h @@ -206,6 +206,22 @@ int imagetool_save_subimage( */ int imagetool_get_filesize(struct image_tool_params *params, const char *fname); +/** + * imagetool_get_source_date() - Get timestamp for build output. + * + * Gets a timestamp for embedding it in a build output. If set + * SOURCE_DATE_EPOCH is used. Else the given fallback value is returned. Prints + * an error message if SOURCE_DATE_EPOCH contains an invalid value and returns + * 0. + * + * @params: mkimage parameters + * @fallback: timestamp to use if SOURCE_DATE_EPOCH isn't set + * @return timestamp based on SOURCE_DATE_EPOCH + */ +time_t imagetool_get_source_date( + struct image_tool_params *params, + time_t fallback); + /* * There is a c file associated with supported image type low level code * for ex. default_image.c, fit_image.c |