Naveen Iyer has uploaded this change for review.

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Makefile.mk: Associate reproducible build to commit ID

There is a need for reproducible builds that are tied to specific
commit IDs. This helps in identifying the commit ID a specific binary
was built from. Bring able to associate a binary to a specific commit
ID is useful for debugging as well as to keep track of features that
went into a given binary.

Change-Id: I97b0c4ea654df23844f31a3398b6f0d05dfec1ab
Signed-off-by: Naveen R. Iyer <iyernaveenr@gmail.com>
---
M Makefile.mk
1 file changed, 2 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/06/82006/1

diff --git a/Makefile.mk b/Makefile.mk
index e642ac7..d7a8f54 100644
--- a/Makefile.mk
+++ b/Makefile.mk
@@ -21,6 +21,8 @@
 ifeq ($(KERNELVERSION),)
 ifeq ($(BUILD_TIMELESS),1)
 KERNELVERSION := -TIMELESS--LESSTIME-
+else ifeq ($(BUILD_TIMELESS_WITH_GITREV),1)
+KERNELVERSION := $(shell test -z "$(git status --porcelain)" && git log --no-abbrev-commit -1 --format="format:%H" || $(error "You cannot use BUILD_TIMELESS_WITH_GITREV with local changes!"))
 else
 KERNELVERSION := $(strip $(if $(GIT),\
 	$(shell git describe --abbrev=12 --dirty --always || git describe),\

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