linux-kernel - Re: [PATCH 3/3] selftest/arm64/ptrace: add tests for PTRACE_O_ARM64_RAW

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Date:   Thu, 4 Feb 2021 15:40:39 +0000
From:   Will Deacon <will@...nel.org>
To:     Andrei Vagin <avagin@...il.com>
Cc:     Catalin Marinas <catalin.marinas@....com>,
        Oleg Nesterov <oleg@...hat.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-api@...r.kernel.org,
        Anthony Steinhauser <asteinhauser@...gle.com>,
        Dave Martin <Dave.Martin@....com>,
        Keno Fischer <keno@...iacomputing.com>, keescook@...omium.org
Subject: Re: [PATCH 3/3] selftest/arm64/ptrace: add tests for
 PTRACE_O_ARM64_RAW_REGS

[+Kees]

On Mon, Feb 01, 2021 at 11:40:12AM -0800, Andrei Vagin wrote:
> Test output:
>  TAP version 13
>  1..2
>  # selftests: arm64/ptrace: ptrace_syscall_raw_regs_test
>  # 1..2
>  # ok 1 x7: 686920776f726c64
>  # ok 2 The child exited with code 0.
>  # # Totals: pass:2 fail:0 xfail:0 xpass:0 skip:0 error:0
>  ok 1 selftests: arm64/ptrace: ptrace_syscall_raw_regs_test
>  # selftests: arm64/ptrace: ptrace_syscall_regs_test
>  # 1..3
>  # ok 1 x7: 0
>  # ok 2 x7: 1
>  # ok 3 The child exited with code 0.
>  # # Totals: pass:3 fail:0 xfail:0 xpass:0 skip:0 error:0
>  ok 2 selftests: arm64/ptrace: ptrace_syscall_regs_test
> 
> Signed-off-by: Andrei Vagin <avagin@...il.com>
> ---
>  tools/testing/selftests/arm64/Makefile        |   2 +-
>  tools/testing/selftests/arm64/ptrace/Makefile |   6 +
>  .../ptrace/ptrace_syscall_raw_regs_test.c     | 142 +++++++++++++++++
>  .../arm64/ptrace/ptrace_syscall_regs_test.c   | 150 ++++++++++++++++++
>  4 files changed, 299 insertions(+), 1 deletion(-)
>  create mode 100644 tools/testing/selftests/arm64/ptrace/Makefile
>  create mode 100644 tools/testing/selftests/arm64/ptrace/ptrace_syscall_raw_regs_test.c
>  create mode 100644 tools/testing/selftests/arm64/ptrace/ptrace_syscall_regs_test.c

Thanks for the tests!

We already have a pretty extensive set of syscall entry tests in
tools/testing/selftests/seccomp, so perhaps this would be better off as part
of that? Maybe worth a look.

Will