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- From: Matthias Schiffer <mschiffer@universe-factory.net>
- Date: Sun, 3 Jul 2016 19:15:49 +0200
- Subject: x86: stop relying on hexdump for image build signature
- Use perl to generate random number instead.
- See https://github.com/freifunk-gluon/gluon/issues/811
- Signed-off-by: Felix Fietkau <nbd@nbd.name>
- Backport of LEDE d5ee23ee275fcd6550b0051de59706cc928cdac8
- diff --git a/target/linux/x86/image/Makefile b/target/linux/x86/image/Makefile
- index e7e02f1..6f64eba 100644
- --- a/target/linux/x86/image/Makefile
- +++ b/target/linux/x86/image/Makefile
- @@ -40,7 +40,7 @@ ifneq ($(GRUB_TERMINALS),)
- GRUB_TERMINAL_CONFIG := terminal_input $(GRUB_TERMINALS); terminal_output $(GRUB_TERMINALS)
- endif
-
- -SIGNATURE:=$(shell dd if=/dev/urandom bs=4 count=1 2>/dev/null | hexdump -v -e '"%08x"')
- +SIGNATURE:=$(shell perl -e 'printf("%08x", rand(0xFFFFFFFF))')
- ROOTPART:=$(call qstrip,$(CONFIG_TARGET_ROOTFS_PARTNAME))
- ROOTPART:=$(if $(ROOTPART),$(ROOTPART),PARTUUID=$(SIGNATURE)-02)
-
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