linux-kernel - Re: [RFC PATCH 2/2] KUnit: KASAN Integration

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Date:   Thu, 27 Feb 2020 15:45:10 +0100
From:   Dmitry Vyukov <dvyukov@...gle.com>
To:     Patricia Alfonso <trishalfonso@...gle.com>
Cc:     Andrey Ryabinin <aryabinin@...tuozzo.com>,
        Brendan Higgins <brendanhiggins@...gle.com>,
        David Gow <davidgow@...gle.com>,
        Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Juri Lelli <juri.lelli@...hat.com>, vincent.guittot@...aro.org,
        LKML <linux-kernel@...r.kernel.org>,
        kasan-dev <kasan-dev@...glegroups.com>,
        "open list:KERNEL SELFTEST FRAMEWORK" 
        <linux-kselftest@...r.kernel.org>, kunit-dev@...glegroups.com
Subject: Re: [RFC PATCH 2/2] KUnit: KASAN Integration

On Thu, Feb 27, 2020 at 3:44 AM 'Patricia Alfonso' via kasan-dev
<kasan-dev@...glegroups.com> wrote:
>
> Integrate KASAN into KUnit testing framework.
>  - Fail tests when KASAN reports an error that is not expected
>  - Use KUNIT_EXPECT_KASAN_FAIL to expect a KASAN error in KASAN tests
>  - KUnit struct added to current task to keep track of the current test
> from KASAN code
>  - Booleans representing if a KASAN report is expected and if a KASAN
>  report is found added to kunit struct
>  - This prints "line# has passed" or "line# has failed"
>
> Signed-off-by: Patricia Alfonso <trishalfonso@...gle.com>

This does not build for me:

$ make
scripts/kconfig/conf  --syncconfig Kconfig
  CC      arch/x86/kernel/asm-offsets.s
  UPD     include/generated/asm-offsets.h
  CALL    scripts/checksyscalls.sh
  CALL    scripts/atomic/check-atomics.sh
  DESCEND  objtool
  CC      init/main.o
In file included from ./include/linux/uaccess.h:11,
                 from ./arch/x86/include/asm/fpu/xstate.h:5,
                 from ./arch/x86/include/asm/pgtable.h:26,
                 from ./include/linux/kasan.h:15,
                 from ./include/linux/slab.h:136,
                 from ./include/kunit/test.h:16,
                 from ./include/linux/sched.h:35,
                 from ./include/linux/ioprio.h:5,
                 from ./include/linux/fs.h:39,
                 from ./include/linux/proc_fs.h:9,
                 from init/main.c:18:
./arch/x86/include/asm/uaccess.h: In function ‘set_fs’:
./arch/x86/include/asm/uaccess.h:31:9: error: dereferencing pointer to
incomplete type ‘struct task_struct’
   31 |  current->thread.addr_limit = fs;
      |         ^~
make[1]: *** [scripts/Makefile.build:268: init/main.o] Error 1
make: *** [Makefile:1681: init] Error 2


On bfdc6d91a25f4545bcd1b12e3219af4838142ef1 config:
https://pastebin.com/raw/nwnL2N9w