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Subject[tip:x86/cpu] kbuild: Raise the minimum required binutils version to 2.21
Commit-ID:  1fb12b35e5ffe379d109b22cb3069830d0136d9a
Gitweb: https://git.kernel.org/tip/1fb12b35e5ffe379d109b22cb3069830d0136d9a
Author: Chang S. Bae <chang.seok.bae@intel.com>
AuthorDate: Wed, 8 May 2019 03:02:19 -0700
Committer: Thomas Gleixner <tglx@linutronix.de>
CommitDate: Sat, 22 Jun 2019 11:38:51 +0200

kbuild: Raise the minimum required binutils version to 2.21

It helps to use some new instructions directly in assembly code.

Suggested-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Chang S. Bae <chang.seok.bae@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Ravi Shankar <ravi.v.shankar@intel.com>
Cc: Linux Torvalds <torvalds@linux-foundation.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Link: https://lkml.kernel.org/r/1557309753-24073-5-git-send-email-chang.seok.bae@intel.com

---
Documentation/process/changes.rst | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/Documentation/process/changes.rst b/Documentation/process/changes.rst
index 18735dc460a0..0a18075c485e 100644
--- a/Documentation/process/changes.rst
+++ b/Documentation/process/changes.rst
@@ -31,7 +31,7 @@ you probably needn't concern yourself with isdn4k-utils.
====================== =============== ========================================
GNU C 4.6 gcc --version
GNU make 3.81 make --version
-binutils 2.20 ld -v
+binutils 2.21 ld -v
flex 2.5.35 flex --version
bison 2.0 bison --version
util-linux 2.10o fdformat --version
@@ -77,9 +77,7 @@ You will need GNU make 3.81 or later to build the kernel.
Binutils
--------

-The build system has, as of 4.13, switched to using thin archives (`ar T`)
-rather than incremental linking (`ld -r`) for built-in.a intermediate steps.
-This requires binutils 2.20 or newer.
+Binutils 2.21 or newer is needed to build the kernel.

pkg-config
----------
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