* What binutils version is needed for kernel LTO
@ 2014-08-04 23:09 Daniel Hoffman
2014-08-05 0:35 ` Andi Kleen
0 siblings, 1 reply; 2+ messages in thread
From: Daniel Hoffman @ 2014-08-04 23:09 UTC (permalink / raw)
To: linux-kernel
I hate to ask it here but I cannot for the life of me compile linux with these. It always kicks it back and says "scripts/Makefile.lto:76: "WARNING: Too old linker version for kernel LTO. You need Linux binutils. CONFIG_LTO disabled."". I am running the latest version from Ubuntu and it matches up with the latest version from gnu.org. What do I have to do?
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: What binutils version is needed for kernel LTO
2014-08-04 23:09 What binutils version is needed for kernel LTO Daniel Hoffman
@ 2014-08-05 0:35 ` Andi Kleen
0 siblings, 0 replies; 2+ messages in thread
From: Andi Kleen @ 2014-08-05 0:35 UTC (permalink / raw)
To: Daniel Hoffman; +Cc: linux-kernel
Daniel Hoffman <daniel_j_hoffman@inbox.com> writes:
> I hate to ask it here but I cannot for the life of me compile linux
> with these. It always kicks it back and says "scripts/Makefile.lto:76:
> "WARNING: Too old linker version for kernel LTO. You need Linux
> binutils. CONFIG_LTO disabled."". I am running the latest version from
> Ubuntu and it matches up with the latest version from gnu.org. What do
> I have to do?
See Documentation/lto-build.
You need the Linux binutils from
https://www.kernel.org/pub/linux/devel/binutils/
-Andi
--
ak@linux.intel.com -- Speaking for myself only
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