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SubjectRe: [tip:core/objtool] objtool: Add CONFIG_STACK_VALIDATION option
On 2016-02-29 03:01:35 [-0800], tip-bot for Josh Poimboeuf wrote:
> Gitweb: http://git.kernel.org/tip/b9ab5ebb14ec389bd80f66613f1fe3f8f65f2521
> Author: Josh Poimboeuf <jpoimboe@redhat.com>
> objtool: Add CONFIG_STACK_VALIDATION option
>
> Add a CONFIG_STACK_VALIDATION option which will run "objtool check" for
> each .o file to ensure the validity of its stack metadata.

|./mk-x86-64.sh -j1
|make[1]: Entering directory '/home/bigeasy/linux-tip/build/linux-x8664'
| CHK include/config/kernel.release
| Using /home/bigeasy/linux-tip as source for kernel
| GEN ./Makefile
| CHK include/generated/uapi/linux/version.h
| CHK include/generated/utsrelease.h
| CHK include/generated/bounds.h
| CHK include/generated/timeconst.h
| CHK include/generated/asm-offsets.h
| CALL /home/bigeasy/linux-tip/scripts/checksyscalls.sh
|scripts/Makefile.include:3: *** O=build/linux-x8664 does not exist. Stop.
|/home/bigeasy/linux-tip/Makefile:1518: recipe for target 'tools/objtool' failed
|make[1]: *** [tools/objtool] Error 2
|make[1]: Leaving directory '/home/bigeasy/linux-tip/build/linux-x8664'
|Makefile:146: recipe for target 'sub-make' failed
|make: *** [sub-make] Error 2

with
|$ cat mk-x86-64.sh
|#!/bin/sh
|export PATH=/usr/lib/ccache/:$PATH
|exec make O=build/linux-x8664 -j 8 $*

Is this know? I tried the TIP tree as of now. It works with
CONFIG_STACK_VALIDATION=n

Sebastian

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