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kernel: Add KERNEL_DEBUG_TIMESTAMPS variable

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Change the "binary reproducibility" configuration within the kernel to
work off a separate variable, defaulting to reproducible builds.

This allows kernel developers wanting timestamps in their images to enable
it easily and clearly without changing the rest of the reproduciblity
code which they likely don't need to change anyway.

(From OE-Core rev: 0725ca18af7a2835aeb9616592a45ead2ee87987)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Richard Purdie
2021-10-14 13:59:19 +01:00
parent 4b424bdfdb
commit 0dc5920862
1 changed files with 4 additions and 2 deletions
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6
meta/classes/kernel.bbclass
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@@ -322,9 +322,11 @@ python do_devshell:prepend () {
addtask bundle_initramfs after do_install before do_deploy
KERNEL_DEBUG_TIMESTAMPS ??= "0"
kernel_do_compile() {
unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS MACHINE
if [ "${BUILD_REPRODUCIBLE_BINARIES}" = "1" ]; then
if [ "${KERNEL_DEBUG_TIMESTAMPS}" != "1" ]; then
# kernel sources do not use do_unpack, so SOURCE_DATE_EPOCH may not
# be set....
if [ "${SOURCE_DATE_EPOCH}" = "" -o "${SOURCE_DATE_EPOCH}" = "0" ]; then
@@ -364,7 +366,7 @@ kernel_do_compile() {
do_compile_kernelmodules() {
unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS MACHINE
if [ "${BUILD_REPRODUCIBLE_BINARIES}" = "1" ]; then
if [ "${KERNEL_DEBUG_TIMESTAMPS}" != "1" ]; then
# kernel sources do not use do_unpack, so SOURCE_DATE_EPOCH may not
# be set....
if [ "${SOURCE_DATE_EPOCH}" = "" -o "${SOURCE_DATE_EPOCH}" = "0" ]; then