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image.bbclass: support binary reproducibility

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Added a new task "reproducible_final_image_task".
If binary reproducibility is desired ($BUILD_REPRODUCIBLE_BINARIES" = "1"),
then recursivley modify mtimes of all files to a reproducible vale.
The value is obtained via REPRODUCIBLE_TIMESTAMP_ROOTFS.
This task is executed as the very last step in image creation, once all
the files in the image have been finalized.

[YOCTO#11176]

(From OE-Core rev: df8df5f907736c3e5b7f15ea11898a1d49726ca5)

Signed-off-by: Juro Bystricky <juro.bystricky@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Juro Bystricky
2017-08-09 10:48:27 -07:00
committed by Richard Purdie
parent 55e9485735
commit 22463d2256
1 changed files with 15 additions and 1 deletions
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meta/classes/image.bbclass
+15 -1
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@@ -117,7 +117,7 @@ def rootfs_variables(d):
'IMAGE_ROOTFS_MAXSIZE','IMAGE_NAME','IMAGE_LINK_NAME','IMAGE_MANIFEST','DEPLOY_DIR_IMAGE','IMAGE_FSTYPES','IMAGE_INSTALL_COMPLEMENTARY','IMAGE_LINGUAS',
'MULTILIBRE_ALLOW_REP','MULTILIB_TEMP_ROOTFS','MULTILIB_VARIANTS','MULTILIBS','ALL_MULTILIB_PACKAGE_ARCHS','MULTILIB_GLOBAL_VARIANTS','BAD_RECOMMENDATIONS','NO_RECOMMENDATIONS',
'PACKAGE_ARCHS','PACKAGE_CLASSES','TARGET_VENDOR','TARGET_ARCH','TARGET_OS','OVERRIDES','BBEXTENDVARIANT','FEED_DEPLOYDIR_BASE_URI','INTERCEPT_DIR','USE_DEVFS',
'CONVERSIONTYPES', 'IMAGE_GEN_DEBUGFS', 'ROOTFS_RO_UNNEEDED', 'IMGDEPLOYDIR', 'PACKAGE_EXCLUDE_COMPLEMENTARY']
'CONVERSIONTYPES', 'IMAGE_GEN_DEBUGFS', 'ROOTFS_RO_UNNEEDED', 'IMGDEPLOYDIR', 'PACKAGE_EXCLUDE_COMPLEMENTARY', 'REPRODUCIBLE_TIMESTAMP_ROOTFS']
variables.extend(rootfs_command_variables(d))
variables.extend(variable_depends(d))
return " ".join(variables)
@@ -254,6 +254,7 @@ fakeroot python do_rootfs () {
progress_reporter.next_stage()
# generate rootfs
d.setVarFlag('REPRODUCIBLE_TIMESTAMP_ROOTFS', 'export', '1')
create_rootfs(d, progress_reporter=progress_reporter, logcatcher=logcatcher)
progress_reporter.finish()
@@ -266,6 +267,7 @@ addtask rootfs after do_prepare_recipe_sysroot
fakeroot python do_image () {
from oe.utils import execute_pre_post_process
d.setVarFlag('REPRODUCIBLE_TIMESTAMP_ROOTFS', 'export', '1')
pre_process_cmds = d.getVar("IMAGE_PREPROCESS_COMMAND")
execute_pre_post_process(d, pre_process_cmds)
@@ -651,3 +653,15 @@ create_merged_usr_symlinks_sdk() {
ROOTFS_PREPROCESS_COMMAND += "${@bb.utils.contains('DISTRO_FEATURES', 'usrmerge', 'create_merged_usr_symlinks_rootfs; ', '',d)}"
POPULATE_SDK_PRE_TARGET_COMMAND += "${@bb.utils.contains('DISTRO_FEATURES', 'usrmerge', 'create_merged_usr_symlinks_sdk; ', '',d)}"
reproducible_final_image_task () {
if [ "$BUILD_REPRODUCIBLE_BINARIES" = "1" ]; then
if [ "$REPRODUCIBLE_TIMESTAMP_ROOTFS" = "" ]; then
REPRODUCIBLE_TIMESTAMP_ROOTFS=`git log -1 --pretty=%ct`
fi
# Set mtime of all files to a reproducible value
bbnote "reproducible_final_image_task: mtime set to $REPRODUCIBLE_TIMESTAMP_ROOTFS"
find ${IMAGE_ROOTFS} -exec touch -h --date=@$REPRODUCIBLE_TIMESTAMP_ROOTFS {} \;
fi
}
IMAGE_PREPROCESS_COMMAND_append = " reproducible_final_image_task; "