linux-kernel - [PATCH 06/19] lto: Disable LTO for sys

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Date:	Fri, 14 Feb 2014 22:21:30 +0100
From:	Andi Kleen <andi@...stfloor.org>
To:	linux-kernel@...r.kernel.org
Cc:	x86@...nel.org, linux-kbuild@...r.kernel.org, mmarek@...e.cz,
	Andi Kleen <ak@...ux.intel.com>
Subject: [PATCH 06/19] lto: Disable LTO for sys_ni

From: Andi Kleen <ak@...ux.intel.com>

The assembler alias code in cond_syscall does not work
when compiled for LTO. Just disable LTO for that file.

Signed-off-by: Andi Kleen <ak@...ux.intel.com>
---
 kernel/Makefile | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/kernel/Makefile b/kernel/Makefile
index bc010ee..31c26c6 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -18,6 +18,9 @@ CFLAGS_REMOVE_cgroup-debug.o = -pg
 CFLAGS_REMOVE_irq_work.o = -pg
 endif
 
+# cond_syscall is currently not LTO compatible
+CFLAGS_sys_ni.o = $(DISABLE_LTO)
+
 obj-y += sched/
 obj-y += locking/
 obj-y += power/
-- 
1.8.5.2

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