From: Kevin Brodsky <kevin.brodsky@arm.com>
To: Jinjie Ruan <ruanjinjie@huawei.com>,
catalin.marinas@arm.com, will@kernel.org, oleg@redhat.com,
tglx@linutronix.de, peterz@infradead.org, luto@kernel.org,
shuah@kernel.org, kees@kernel.org, wad@chromium.org,
charlie@rivosinc.com, akpm@linux-foundation.org, ldv@strace.io,
macro@orcam.me.uk, deller@gmx.de, mark.rutland@arm.com,
efault@gmx.de, song@kernel.org, mbenes@suse.cz,
ryan.roberts@arm.com, ada.coupriediaz@arm.com,
anshuman.khandual@arm.com, broonie@kernel.org,
pengcan@kylinos.cn, dvyukov@google.com, kmal@cock.li,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org
Subject: Re: [PATCH v8 10/12] entry: Add arch_ptrace_report_syscall_entry/exit()
Date: Thu, 27 Nov 2025 14:30:51 +0100 [thread overview]
Message-ID: <1fecc357-2d7d-4016-b70f-5789ff4a8262@arm.com> (raw)
In-Reply-To: <20251126071446.3234218-11-ruanjinjie@huawei.com>
On 26/11/2025 08:14, Jinjie Ruan wrote:
> Differ from generic entry, due to historical reasons, ARM64 need to
> save/restore during syscall entry/exit because ARM64 use a scratch
> register (ip(r12) on AArch32, x7 on AArch64) to denote syscall entry/exit.
>
> In preparation for moving arm64 over to the generic entry code,
> add arch_ptrace_report_syscall_entry/exit() as the default
> ptrace_report_syscall_entry/exit() implementation. This allows
> arm64 to implement the architecture specific version.
>
> This allows arm64 to implement the architecture specific version.
>
> Suggested-by: Mark Rutland <mark.rutland@arm.com>
> Suggested-by: Thomas Gleixner <tglx@linutronix.de>
> Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Reviewed-by: Kevin Brodsky <kevin.brodsky@arm.com>
next prev parent reply other threads:[~2025-11-27 13:31 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-26 7:14 [PATCH v8 00/12] arm64: entry: Convert to Generic Entry Jinjie Ruan
2025-11-26 7:14 ` [PATCH v8 01/12] arm64: Remove unused _TIF_WORK_MASK Jinjie Ruan
2025-11-27 13:27 ` Kevin Brodsky
2025-11-26 7:14 ` [PATCH v8 02/12] arm64/ptrace: Split report_syscall() Jinjie Ruan
2025-11-27 13:28 ` Kevin Brodsky
2025-11-26 7:14 ` [PATCH v8 03/12] arm64/ptrace: Refactor syscall_trace_enter/exit() Jinjie Ruan
2025-11-27 13:28 ` Kevin Brodsky
2025-11-26 7:14 ` [PATCH v8 04/12] arm64: ptrace: Move rseq_syscall() before audit_syscall_exit() Jinjie Ruan
2025-11-27 13:28 ` Kevin Brodsky
2025-11-26 7:14 ` [PATCH v8 05/12] arm64: syscall: Rework el0_svc_common() Jinjie Ruan
2025-11-27 13:29 ` Kevin Brodsky
2025-11-26 7:14 ` [PATCH v8 06/12] arm64/ptrace: Return early for ptrace_report_syscall_entry() error Jinjie Ruan
2025-11-27 13:29 ` Kevin Brodsky
2025-11-26 7:14 ` [PATCH v8 07/12] arm64/ptrace: Expand secure_computing() in place Jinjie Ruan
2025-11-27 13:29 ` Kevin Brodsky
2025-11-26 7:14 ` [PATCH v8 08/12] arm64/ptrace: Use syscall_get_arguments() heleper Jinjie Ruan
2025-11-27 13:30 ` Kevin Brodsky
2025-11-26 7:14 ` [PATCH v8 09/12] entry: Split syscall_exit_to_user_mode_work() for arch reuse Jinjie Ruan
2025-11-26 7:14 ` [PATCH v8 10/12] entry: Add arch_ptrace_report_syscall_entry/exit() Jinjie Ruan
2025-11-27 13:30 ` Kevin Brodsky [this message]
2025-11-26 7:14 ` [PATCH v8 11/12] arm64: entry: Convert to generic entry Jinjie Ruan
2025-11-27 13:31 ` Kevin Brodsky
2025-11-28 3:34 ` Jinjie Ruan
2025-11-28 13:32 ` Kevin Brodsky
2025-11-29 1:23 ` Jinjie Ruan
2025-12-01 10:17 ` Kevin Brodsky
2025-11-26 7:14 ` [PATCH v8 12/12] selftests: sud_test: Support aarch64 Jinjie Ruan
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