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authorPatrick Georgi <pgeorgi@chromium.org>2016-01-28 15:00:54 +0100
committerPatrick Georgi <pgeorgi@google.com>2016-01-29 16:37:02 +0100
commitdcc3ecc940e95cb6a97dbea203d3680f67910b59 (patch)
tree7e11e670f27fd8e4fedac6d985bbf53de9a13b6a /src/arch
parent988ee17fd2486415e8be4ebf49f57b5a1b97e685 (diff)
downloadcoreboot-dcc3ecc940e95cb6a97dbea203d3680f67910b59.tar.xz
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>
Diffstat (limited to 'src/arch')
-rw-r--r--src/arch/arm64/Makefile.inc8
1 files changed, 7 insertions, 1 deletions
diff --git a/src/arch/arm64/Makefile.inc b/src/arch/arm64/Makefile.inc
index 33755d3035..ec559fa42d 100644
--- a/src/arch/arm64/Makefile.inc
+++ b/src/arch/arm64/Makefile.inc
@@ -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)" \