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arch/arm64: Override bl31 timestamp with coreboot build timestamp 

If coreboot's build process is reproducible (eg. using the latest git
timestamp as source), bl31 is, too.

This requires an arm-trusted-firmware side merge first (in progress) and
an update of our reference commit for the submodule, but it also doesn't
hurt anything because it merely sets a variable that currently goes
unused.

Change-Id: If139538a2fab5b3a70c67f4625aa2596532308f7
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: https://review.coreboot.org/13497
Tested-by: build bot (Jenkins)
Reviewed-by: Alexander Couzens <lynxis@fe80.eu>
This commit is contained in:
Patrick Georgi 2016-01-28 15:00:54 +01:00 committed by Patrick Georgi
parent 988ee17fd2
commit dcc3ecc940
1 changed files with 7 additions and 1 deletions
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8
src/arch/arm64/Makefile.inc
View File

@ -155,12 +155,18 @@ endif # CONFIG_CONSOLE_SERIAL
# Avoid build/release|build/debug distinction by overriding BUILD_PLAT directly
BL31_MAKEARGS += BUILD_PLAT="$(abspath $(obj)/3rdparty/arm-trusted-firmware)"
# Set a consistent build timestamp: the same coreboot has
# The \# \" complications exist to satisfy both gnu make's parser and editors
# with non-semantic quote-handling (that would assume that this line starts a
# multi line string.
BL31_MAKEARGS += BUILD_MESSAGE_TIMESTAMP="$(shell grep "\#define COREBOOT_BUILD\>" $(obj)/build.h |cut -d\" -f2 \# \")"
BL31_CFLAGS := -fno-pic -fno-stack-protector
BL31_LDFLAGS := --emit-relocs
BL31 := $(obj)/bl31.elf
$(BL31):
$(BL31): $(obj)/build.h
@printf " MAKE $(subst $(obj)/,,$(@))\n"
CROSS_COMPILE="$(CROSS_COMPILE_arm64)" \
CFLAGS="$(BL31_CFLAGS)" \