linux-kernel - [tip:x86/pti 14/14] arch/x86/kernel/ftrace_64.o: warning: objtool: .entry.text+0x152: unreachable instruction

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Message-ID: <201805142137.VRa24l1s%fengguang.wu@intel.com>
Date:   Mon, 14 May 2018 21:25:39 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Alexey Dobriyan <adobriyan@...il.com>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org,
        tipbuild@...or.com, Ingo Molnar <mingo@...nel.org>
Subject: [tip:x86/pti 14/14] arch/x86/kernel/ftrace_64.o: warning: objtool:
 .entry.text+0x152: unreachable instruction

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/pti
head:   51bad67ffbce0aaa44579f84ef5d05597054ec6a
commit: 51bad67ffbce0aaa44579f84ef5d05597054ec6a [14/14] x86/asm: Pad assembly functions with INT3 instructions
config: x86_64-randconfig-x016-201819 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-16) 7.3.0
reproduce:
        git checkout 51bad67ffbce0aaa44579f84ef5d05597054ec6a
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All warnings (new ones prefixed by >>):

>> arch/x86/kernel/ftrace_64.o: warning: objtool: .entry.text+0x152: unreachable instruction
--
>> arch/x86/kernel/head_64.o: warning: objtool: .head.text+0x22: unreachable instruction

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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