From: Steven Rostedt <rostedt@goodmis.org>
To: Ingo Molnar <mingo@kernel.org>, Josh Poimboeuf <jpoimboe@kernel.org>
Cc: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org,
Masami Hiramatsu <mhiramat@kernel.org>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
Peter Zijlstra <peterz@infradead.org>,
x86@kernel.org, Jiri Olsa <jolsa@kernel.org>,
Namhyung Kim <namhyung@kernel.org>
Subject: Re: [PATCH v7 01/17] unwind_user: Add user space unwinding API
Date: Sun, 4 May 2025 12:43:30 -0400 [thread overview]
Message-ID: <20250504124330.6a62e7b5@batman.local.home> (raw)
In-Reply-To: <aBczuIoPIV3kkCnu@gmail.com>
On Sun, 4 May 2025 11:30:32 +0200
Ingo Molnar <mingo@kernel.org> wrote:
> > +struct unwind_user_state {
> > + unsigned long ip;
> > + unsigned long sp;
> > + unsigned long fp;
> > + enum unwind_user_type type;
> > + bool done;
> > +};
>
> Will any of these types be visible to tooling via ABIs?
Not that I'm aware of. Josh can confirm. Josh?
With the exception of BTF (which exposes pretty much all structures), I
believe this is completely internal for the generic code of the unwinder.
-- Steve
next prev parent reply other threads:[~2025-05-04 16:43 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-02 16:47 [PATCH v7 00/17] unwind_user: perf: x86: Deferred unwinding infrastructure Steven Rostedt
2025-05-02 16:47 ` [PATCH v7 01/17] unwind_user: Add user space unwinding API Steven Rostedt
2025-05-04 9:30 ` Ingo Molnar
2025-05-04 16:43 ` Steven Rostedt [this message]
2025-05-04 17:53 ` Josh Poimboeuf
2025-05-02 16:47 ` [PATCH v7 02/17] unwind_user: Add frame pointer support Steven Rostedt
2025-05-02 16:47 ` [PATCH v7 03/17] unwind_user/x86: Enable frame pointer unwinding on x86 Steven Rostedt
2025-05-02 16:47 ` [PATCH v7 04/17] perf/x86: Rename and move get_segment_base() and make it global Steven Rostedt
2025-05-02 16:47 ` [PATCH v7 05/17] unwind_user: Add compat mode frame pointer support Steven Rostedt
2025-05-02 16:47 ` [PATCH v7 06/17] unwind_user/x86: Enable compat mode frame pointer unwinding on x86 Steven Rostedt
2025-05-02 16:47 ` [PATCH v7 07/17] unwind_user/deferred: Add unwind_deferred_trace() Steven Rostedt
2025-05-02 16:47 ` [PATCH v7 08/17] unwind_user/deferred: Add unwind cache Steven Rostedt
2025-05-04 9:37 ` Ingo Molnar
2025-05-04 16:21 ` Steven Rostedt
2025-05-02 16:47 ` [PATCH v7 09/17] unwind_user/deferred: Add deferred unwinding interface Steven Rostedt
2025-05-02 16:47 ` [PATCH v7 10/17] unwind_user/deferred: Make unwind deferral requests NMI-safe Steven Rostedt
2025-05-02 16:47 ` [PATCH v7 11/17] unwind deferred: Use bitmask to determine which callbacks to call Steven Rostedt
2025-05-09 1:36 ` Steven Rostedt
2025-05-02 16:47 ` [PATCH v7 12/17] unwind deferred: Use SRCU unwind_deferred_task_work() Steven Rostedt
2025-05-02 16:47 ` [PATCH v7 13/17] perf: Remove get_perf_callchain() init_nr argument Steven Rostedt
2025-05-02 16:48 ` [PATCH v7 14/17] perf: Have get_perf_callchain() return NULL if crosstask and user are set Steven Rostedt
2025-05-02 16:48 ` [PATCH v7 15/17] perf: Use current->flags & PF_KTHREAD instead of current->mm == NULL Steven Rostedt
2025-05-02 16:48 ` [PATCH v7 16/17] perf: Simplify get_perf_callchain() user logic Steven Rostedt
2025-05-02 16:48 ` [PATCH v7 17/17] perf: Skip user unwind if the task is a kernel thread Steven Rostedt
2025-05-04 9:41 ` [PATCH v7 00/17] unwind_user: perf: x86: Deferred unwinding infrastructure Ingo Molnar
2025-05-04 16:32 ` Steven Rostedt
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