From: Masami Hiramatsu (Google) <mhiramat@kernel.org>
To: Will Deacon <will@kernel.org>
Cc: Alexei Starovoitov <alexei.starovoitov@gmail.com>,
Steven Rostedt <rostedt@goodmis.org>,
Florent Revest <revest@chromium.org>,
linux-trace-kernel@vger.kernel.org,
LKML <linux-kernel@vger.kernel.org>,
Martin KaFai Lau <martin.lau@linux.dev>,
bpf <bpf@vger.kernel.org>, Alexei Starovoitov <ast@kernel.org>,
Jiri Olsa <jolsa@kernel.org>,
Alan Maguire <alan.maguire@oracle.com>,
Mark Rutland <mark.rutland@arm.com>,
linux-arch@vger.kernel.org, Heiko Carstens <hca@linux.ibm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Huacai Chen <chenhuacai@kernel.org>,
WANG Xuerui <kernel@xen0n.name>,
Paul Walmsley <paul.walmsley@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Vasily Gorbik <gor@linux.ibm.com>,
Alexander Gordeev <agordeev@linux.ibm.com>,
Christian Borntraeger <borntraeger@linux.ibm.com>,
Sven Schnelle <svens@linux.ibm.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Subject: Re: [PATCH v17 02/16] function_graph: Replace fgraph_ret_regs with ftrace_regs
Date: Wed, 23 Oct 2024 17:58:43 +0900 [thread overview]
Message-ID: <20241023175843.e1f92bb25e9f65a4e3ff2861@kernel.org> (raw)
In-Reply-To: <20241021164658.GB26073@willie-the-truck>
On Mon, 21 Oct 2024 17:46:58 +0100
Will Deacon <will@kernel.org> wrote:
> On Wed, Oct 16, 2024 at 09:58:09AM +0900, Masami Hiramatsu (Google) wrote:
> > From: Masami Hiramatsu (Google) <mhiramat@kernel.org>
> >
> > Use ftrace_regs instead of fgraph_ret_regs for tracing return value
> > on function_graph tracer because of simplifying the callback interface.
> >
> > The CONFIG_HAVE_FUNCTION_GRAPH_RETVAL is also replaced by
> > CONFIG_HAVE_FUNCTION_GRAPH_FREGS.
> >
> > Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
> > Acked-by: Heiko Carstens <hca@linux.ibm.com>
> > Cc: Catalin Marinas <catalin.marinas@arm.com>
> > Cc: Will Deacon <will@kernel.org>
> > Cc: Steven Rostedt <rostedt@goodmis.org>
> > Cc: Mark Rutland <mark.rutland@arm.com>
> > Cc: Huacai Chen <chenhuacai@kernel.org>
> > Cc: WANG Xuerui <kernel@xen0n.name>
> > Cc: Paul Walmsley <paul.walmsley@sifive.com>
> > Cc: Palmer Dabbelt <palmer@dabbelt.com>
> > Cc: Albert Ou <aou@eecs.berkeley.edu>
> > Cc: Vasily Gorbik <gor@linux.ibm.com>
> > Cc: Alexander Gordeev <agordeev@linux.ibm.com>
> > Cc: Heiko Carstens <hca@linux.ibm.com>
> > Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
> > Cc: Sven Schnelle <svens@linux.ibm.com>
> > Cc: Thomas Gleixner <tglx@linutronix.de>
> > Cc: Ingo Molnar <mingo@redhat.com>
> > Cc: Borislav Petkov <bp@alien8.de>
> > Cc: Dave Hansen <dave.hansen@linux.intel.com>
> > Cc: x86@kernel.org
> > Cc: "H. Peter Anvin" <hpa@zytor.com>
> > Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
> >
> > ---
> > Changes in v17:
> > - Fixes s390 return_to_handler according to Heiko's advice.
> > Changes in v16:
> > - According to the recent ftrace_regs.h change, override
> > ftrace_regs_get_frame_pointer() if needed.
> > - s390: keep stack_frame on stack, just replace fgraph_ret_regs
> > with ftrace_regs.
> > Changes in v8:
> > - Newly added.
> > ---
> > arch/arm64/Kconfig | 1 +
> > arch/arm64/include/asm/ftrace.h | 23 ++++++-----------------
> > arch/arm64/kernel/asm-offsets.c | 12 ------------
> > arch/arm64/kernel/entry-ftrace.S | 32 ++++++++++++++++++--------------
>
> For the arm64 parts:
>
> Acked-by: Will Deacon <will@kernel.org>
Thank you!
>
> Will
--
Masami Hiramatsu (Google) <mhiramat@kernel.org>
next prev parent reply other threads:[~2024-10-23 8:58 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-16 0:57 [PATCH v17 00/16] tracing: fprobe: function_graph: Multi-function graph and fprobe on fgraph Masami Hiramatsu (Google)
2024-10-16 0:57 ` [PATCH v17 01/16] function_graph: Pass ftrace_regs to entryfunc Masami Hiramatsu (Google)
2024-10-16 13:53 ` Steven Rostedt
2024-10-16 22:15 ` Masami Hiramatsu
2024-10-21 17:03 ` Will Deacon
2024-10-22 22:55 ` Masami Hiramatsu
2024-10-16 0:58 ` [PATCH v17 02/16] function_graph: Replace fgraph_ret_regs with ftrace_regs Masami Hiramatsu (Google)
2024-10-21 16:46 ` Will Deacon
2024-10-23 8:58 ` Masami Hiramatsu [this message]
2024-10-16 0:58 ` [PATCH v17 03/16] function_graph: Pass ftrace_regs to retfunc Masami Hiramatsu (Google)
2024-10-16 0:58 ` [PATCH v17 04/16] fprobe: Use ftrace_regs in fprobe entry handler Masami Hiramatsu (Google)
2024-10-16 0:58 ` [PATCH v17 05/16] fprobe: Use ftrace_regs in fprobe exit handler Masami Hiramatsu (Google)
2024-10-16 0:59 ` [PATCH v17 06/16] tracing: Add ftrace_partial_regs() for converting ftrace_regs to pt_regs Masami Hiramatsu (Google)
2024-10-21 16:46 ` Will Deacon
2024-10-23 8:57 ` Masami Hiramatsu
2024-10-16 0:59 ` [PATCH v17 07/16] tracing: Add ftrace_fill_perf_regs() for perf event Masami Hiramatsu (Google)
2024-10-21 17:01 ` Will Deacon
2024-10-23 8:58 ` Masami Hiramatsu
2024-10-16 0:59 ` [PATCH v17 08/16] tracing/fprobe: Enable fprobe events with CONFIG_DYNAMIC_FTRACE_WITH_ARGS Masami Hiramatsu (Google)
2024-10-16 0:59 ` [PATCH v17 09/16] bpf: Enable kprobe_multi feature if CONFIG_FPROBE is enabled Masami Hiramatsu (Google)
2024-10-16 0:59 ` [PATCH v17 10/16] ftrace: Add CONFIG_HAVE_FTRACE_GRAPH_FUNC Masami Hiramatsu (Google)
2024-10-16 1:00 ` [PATCH v17 11/16] fprobe: Rewrite fprobe on function-graph tracer Masami Hiramatsu (Google)
2024-10-16 12:07 ` Sven Schnelle
2024-10-16 14:10 ` Steven Rostedt
2024-10-16 18:13 ` Sven Schnelle
2024-10-17 21:10 ` Steven Rostedt
2024-10-18 12:49 ` Heiko Carstens
2024-10-21 15:15 ` Masami Hiramatsu
2024-10-21 16:31 ` Heiko Carstens
2024-10-22 9:00 ` Masami Hiramatsu
2024-10-16 14:46 ` Masami Hiramatsu
2024-10-16 18:14 ` Sven Schnelle
2024-10-18 0:45 ` Masami Hiramatsu
2024-10-16 1:00 ` [PATCH v17 12/16] tracing/fprobe: Remove nr_maxactive from fprobe Masami Hiramatsu (Google)
2024-10-16 1:00 ` [PATCH v17 13/16] selftests: ftrace: Remove obsolate maxactive syntax check Masami Hiramatsu (Google)
2024-10-16 1:00 ` [PATCH v17 14/16] selftests/ftrace: Add a test case for repeating register/unregister fprobe Masami Hiramatsu (Google)
2024-10-16 1:00 ` [PATCH v17 15/16] Documentation: probes: Update fprobe on function-graph tracer Masami Hiramatsu (Google)
2024-10-16 1:01 ` [PATCH v17 16/16] bpf: Add get_entry_ip() for arm64 Masami Hiramatsu (Google)
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