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From: Alexander Couzens <lynxis@fe80.eu>
To: grub-devel@gnu.org
Subject: [PATCH v3 3/3] Makefile/coreboot use SOURCE_DATE_EPOCH as time source
if set
Date: Fri, 4 Dec 2015 19:32:22 +0100
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mkstandalone sets timestamps for files which can be overriden by a fixed_timestamp.
This makes it possible to build reproducible builds for coreboot.
To build a reproducible build of grub for coreboot do:
export SOURCE_DATE_EPOCH=1134242
make default_payload.elf
---
Makefile.am | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Makefile.am b/Makefile.am
index 994ebbd..5c756d7 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -403,7 +403,7 @@ bootcheck: $(BOOTCHECKS)
if COND_i386_coreboot
default_payload.elf: grub-mkstandalone grub-mkimage
- pkgdatadir=. ./grub-mkstandalone --grub-mkimage=./grub-mkimage -O i386-coreboot -o $@ --modules='ahci pata ehci uhci ohci usb_keyboard usbms part_msdos xfs ext2 fat at_keyboard part_gpt usbserial_usbdebug cbfs' --install-modules='ls linux search configfile normal cbtime cbls memrw iorw minicmd lsmmap lspci halt reboot hexdump pcidump regexp setpci lsacpi chain test serial multiboot cbmemc linux16 gzio echo help' --fonts= --themes= --locales= -d grub-core/ /boot/grub/grub.cfg=$(srcdir)/coreboot.cfg
+ pkgdatadir=. ./grub-mkstandalone --grub-mkimage=./grub-mkimage -O i386-coreboot -o $@ --modules='ahci pata ehci uhci ohci usb_keyboard usbms part_msdos xfs ext2 fat at_keyboard part_gpt usbserial_usbdebug cbfs' --install-modules='ls linux search configfile normal cbtime cbls memrw iorw minicmd lsmmap lspci halt reboot hexdump pcidump regexp setpci lsacpi chain test serial multiboot cbmemc linux16 gzio echo help' --fonts= --themes= --locales= -d grub-core/ /boot/grub/grub.cfg=$(srcdir)/coreboot.cfg $(if $(SOURCE_DATE_EPOCH),-t $(SOURCE_DATE_EPOCH))
endif
endif
--
2.6.3
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