Makefile,genbuild: Provide length for abbreviated commit hashes
The original default, minimum abbreviated hash length was 7. It dif-
fers on newer systems, however. This breaks reproducibility, so set
an explicit length. 12 hex digits should be good enough.
Note: This sets only a minimum. With a high enough number of commit
objects in the repository, Git could still decide to use a longer
hash, again breaking reproducibility. 12 digits will hopefully pro-
vide enough margin.
Change-Id: Ia86e9cc41e27a0a57d498dcb13aec954c4ea0f04
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76560
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
diff --git a/Makefile.inc b/Makefile.inc
index 0d38ea3..094387f 100644
--- a/Makefile.inc
+++ b/Makefile.inc
@@ -23,7 +23,7 @@
KERNELVERSION := -TIMELESS--LESSTIME-
else
KERNELVERSION := $(strip $(if $(GIT),\
- $(shell git describe --dirty --always || git describe),\
+ $(shell git describe --abbrev=12 --dirty --always || git describe),\
$(if $(wildcard $(top)/.coreboot-version),\
$(shell cat $(top)/.coreboot-version),\
coreboot-unknown$(KERNELREVISION))))