linux-kernel - [ptrace] 201766a20e: kernel_selftests.seccomp.make

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Date:   Mon, 29 Jul 2019 17:35:30 +0800
From:   kernel test robot <rong.a.chen@...el.com>
To:     Elvira Khabirova <lineprinter@...linux.org>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        "Dmitry V. Levin" <ldv@...linux.org>,
        Oleg Nesterov <oleg@...hat.com>,
        Kees Cook <keescook@...omium.org>,
        Andy Lutomirski <luto@...nel.org>,
        Eugene Syromyatnikov <esyr@...hat.com>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Greentime Hu <greentime@...estech.com>,
        "James E.J. Bottomley" <jejb@...isc-linux.org>,
        James Hogan <jhogan@...nel.org>,
        kbuild test robot <lkp@...el.com>,
        Michael Ellerman <mpe@...erman.id.au>,
        Paul Burton <paul.burton@...s.com>,
        Paul Mackerras <paulus@...ba.org>,
        Ralf Baechle <ralf@...ux-mips.org>,
        Richard Kuo <rkuo@...eaurora.org>,
        Shuah Khan <shuah@...nel.org>,
        Vincent Chen <deanbo422@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        LKML <linux-kernel@...r.kernel.org>, lkp@...org
Subject: [ptrace] 201766a20e: kernel_selftests.seccomp.make_fail

FYI, we noticed the following commit (built with gcc-7):

commit: 201766a20e30f982ccfe36bebfad9602c3ff574a ("ptrace: add PTRACE_GET_SYSCALL_INFO request")
https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux.git master

in testcase: kernel_selftests
with following parameters:

	group: kselftests-02

test-description: The kernel contains a set of "self tests" under the tools/testing/selftests/ directory. These are intended to be small unit tests to exercise individual code paths in the kernel.
test-url: https://www.kernel.org/doc/Documentation/kselftest.txt


on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 8G

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):


If you fix the issue, kindly add following tag
Reported-by: kernel test robot <rong.a.chen@...el.com>



2019-07-26 16:52:03 make run_tests -C seccomp
make: Entering directory '/usr/src/perf_selftests-x86_64-rhel-7.6-201766a20e30f982ccfe36bebfad9602c3ff574a/tools/testing/selftests/seccomp'
gcc -Wl,-no-as-needed -Wall  seccomp_bpf.c -lpthread -o seccomp_bpf
In file included from seccomp_bpf.c:51:0:
seccomp_bpf.c: In function ‘tracer_ptrace’:
seccomp_bpf.c:1787:20: error: ‘PTRACE_EVENTMSG_SYSCALL_ENTRY’ undeclared (first use in this function)
  EXPECT_EQ(entry ? PTRACE_EVENTMSG_SYSCALL_ENTRY
                    ^
../kselftest_harness.h:608:13: note: in definition of macro ‘__EXPECT’
  __typeof__(_expected) __exp = (_expected); \
             ^~~~~~~~~
seccomp_bpf.c:1787:2: note: in expansion of macro ‘EXPECT_EQ’
  EXPECT_EQ(entry ? PTRACE_EVENTMSG_SYSCALL_ENTRY
  ^~~~~~~~~
seccomp_bpf.c:1787:20: note: each undeclared identifier is reported only once for each function it appears in
  EXPECT_EQ(entry ? PTRACE_EVENTMSG_SYSCALL_ENTRY
                    ^
../kselftest_harness.h:608:13: note: in definition of macro ‘__EXPECT’
  __typeof__(_expected) __exp = (_expected); \
             ^~~~~~~~~
seccomp_bpf.c:1787:2: note: in expansion of macro ‘EXPECT_EQ’
  EXPECT_EQ(entry ? PTRACE_EVENTMSG_SYSCALL_ENTRY
  ^~~~~~~~~
seccomp_bpf.c:1788:6: error: ‘PTRACE_EVENTMSG_SYSCALL_EXIT’ undeclared (first use in this function)
    : PTRACE_EVENTMSG_SYSCALL_EXIT, msg);
      ^
../kselftest_harness.h:608:13: note: in definition of macro ‘__EXPECT’
  __typeof__(_expected) __exp = (_expected); \
             ^~~~~~~~~
seccomp_bpf.c:1787:2: note: in expansion of macro ‘EXPECT_EQ’
  EXPECT_EQ(entry ? PTRACE_EVENTMSG_SYSCALL_ENTRY
  ^~~~~~~~~
Makefile:12: recipe for target 'seccomp_bpf' failed
make: *** [seccomp_bpf] Error 1
make: Leaving directory '/usr/src/perf_selftests-x86_64-rhel-7.6-201766a20e30f982ccfe36bebfad9602c3ff574a/tools/testing/selftests/seccomp'


To reproduce:

        # build kernel
	cd linux
	cp config-5.2.0-10889-g201766a20e30f9 .config
	make HOSTCC=gcc-7 CC=gcc-7 ARCH=x86_64 olddefconfig prepare modules_prepare bzImage

        git clone https://github.com/intel/lkp-tests.git
        cd lkp-tests
        bin/lkp qemu -k <bzImage> job-script # job-script is attached in this email



Thanks,
Rong Chen


View attachment "config-5.2.0-10889-g201766a20e30f9" of type "text/plain" (199297 bytes)

View attachment "job-script" of type "text/plain" (6477 bytes)

Download attachment "dmesg.xz" of type "application/x-xz" (65268 bytes)

View attachment "kernel_selftests" of type "text/plain" (167810 bytes)