From patchwork Sat Oct 26 04:37:27 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Masami Hiramatsu (Google)" X-Patchwork-Id: 13852045 X-Patchwork-Delegate: bpf@iogearbox.net Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 51E9E14A0B8; Sat, 26 Oct 2024 04:37:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729917458; cv=none; b=XudxAknz7N4y5rqNWiDjQFUN4ctvG5N5PyFcJlNYvfCrJVcercKgjex2AN/72WwAw+wG2Q4Zz9m3jurqEynpql+cHkAPLzZAhWLfbGnRl0Cm7eOjsU3cHEQAhqOFbEuBBYTAaG12G2D/gVecveSpuGSFn6pzP0pamTG13Og/a+8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729917458; c=relaxed/simple; bh=KdYbmsoSUbCNl+CmIGlKxxBZZT6J27cNs7+f9ey+TQk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=QyqoTUk805YsGjl/JnKHogRczNZ+/JCfDkepnR3etvRQHFk2n3v5smRN4DFkvfg2sm2VciZRzN7pt6BysG6qfAU1B+byKgQ5eApFHzKmMJFxfBXYTMMbEe5DP8JyCE92iBa6xJhO+wAWJyrIW3gW1ODloU72WMTWKtSd9TpwhYo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=TPQrGwXp; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="TPQrGwXp" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C2DA1C4CEC6; Sat, 26 Oct 2024 04:37:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1729917457; bh=KdYbmsoSUbCNl+CmIGlKxxBZZT6J27cNs7+f9ey+TQk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=TPQrGwXprW7p8XuD61XU7SH4MRtjJCJKjETu/AZA3cEeMef0yZKqQL5IlfEw9Hpy/ ipsuom2peVUyxW+8eTe5K0sVmsUgArVSxN2/P5MwpASMc+RPb9osfSova0/K7+KjtU tVZldAMmNmRq8F0YYrgi9+szszB0H5hri4McQb2IAyfcrhq59aJphi/SXICFKFgjFG C+KrsTGg9ofAyi94e3g5InZIHShZ2TBN5f7dnI6qBkf8ysaoYRAOZ5ROPZkZWd5OXj AQjP0lbF9HSvQ4ql9qNbdBoqDvUqjucCSL/qPiCNM1wrGHwpTOzYmrFB81h0VkQ9C+ e8JgatyUTxQjQ== From: "Masami Hiramatsu (Google)" To: Alexei Starovoitov , Steven Rostedt , Florent Revest Cc: linux-trace-kernel@vger.kernel.org, LKML , Martin KaFai Lau , bpf , Alexei Starovoitov , Jiri Olsa , Alan Maguire , Mark Rutland , linux-arch@vger.kernel.org, Catalin Marinas , Will Deacon , Huacai Chen , WANG Xuerui , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Naveen N Rao , Madhavan Srinivasan , Paul Walmsley , Palmer Dabbelt , Albert Ou , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Mathieu Desnoyers Subject: [PATCH v18 10/17] ftrace: Add CONFIG_HAVE_FTRACE_GRAPH_FUNC Date: Sat, 26 Oct 2024 13:37:27 +0900 Message-ID: <172991744721.443985.15895949202808873772.stgit@devnote2> X-Mailer: git-send-email 2.43.0 In-Reply-To: <172991731968.443985.4558065903004844780.stgit@devnote2> References: <172991731968.443985.4558065903004844780.stgit@devnote2> User-Agent: StGit/0.19 Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Masami Hiramatsu (Google) Add CONFIG_HAVE_FTRACE_GRAPH_FUNC kconfig in addition to ftrace_graph_func macro check. This is for the other feature (e.g. FPROBE) which requires to access ftrace_regs from fgraph_ops::entryfunc() can avoid compiling if the fgraph can not pass the valid ftrace_regs. Signed-off-by: Masami Hiramatsu (Google) Cc: Catalin Marinas Cc: Will Deacon Cc: Huacai Chen Cc: WANG Xuerui Cc: Michael Ellerman Cc: Nicholas Piggin Cc: Christophe Leroy Cc: Naveen N Rao Cc: Madhavan Srinivasan Cc: Paul Walmsley Cc: Palmer Dabbelt Cc: Albert Ou Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Borislav Petkov Cc: Dave Hansen Cc: x86@kernel.org Cc: "H. Peter Anvin" Cc: Steven Rostedt Cc: Mathieu Desnoyers --- Changes in v8: - Newly added. --- arch/arm64/Kconfig | 1 + arch/loongarch/Kconfig | 1 + arch/powerpc/Kconfig | 1 + arch/riscv/Kconfig | 1 + arch/x86/Kconfig | 1 + kernel/trace/Kconfig | 5 +++++ 6 files changed, 10 insertions(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 012bb9dcb631..ef8f2807790d 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -213,6 +213,7 @@ config ARM64 select HAVE_SAMPLE_FTRACE_DIRECT_MULTI select HAVE_EFFICIENT_UNALIGNED_ACCESS select HAVE_GUP_FAST + select HAVE_FTRACE_GRAPH_FUNC select HAVE_FTRACE_MCOUNT_RECORD select HAVE_FUNCTION_TRACER select HAVE_FUNCTION_ERROR_INJECTION diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig index 2b0dc9830ec1..5e15c8ed7faf 100644 --- a/arch/loongarch/Kconfig +++ b/arch/loongarch/Kconfig @@ -133,6 +133,7 @@ config LOONGARCH select HAVE_EFFICIENT_UNALIGNED_ACCESS if !ARCH_STRICT_ALIGN select HAVE_EXIT_THREAD select HAVE_GUP_FAST + select HAVE_FTRACE_GRAPH_FUNC select HAVE_FTRACE_MCOUNT_RECORD select HAVE_FUNCTION_ARG_ACCESS_API select HAVE_FUNCTION_ERROR_INJECTION diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 8094a01974cc..0888aabff071 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -238,6 +238,7 @@ config PPC select HAVE_EBPF_JIT select HAVE_EFFICIENT_UNALIGNED_ACCESS select HAVE_GUP_FAST + select HAVE_FTRACE_GRAPH_FUNC select HAVE_FTRACE_MCOUNT_RECORD select HAVE_FUNCTION_ARG_ACCESS_API select HAVE_FUNCTION_DESCRIPTORS if PPC64_ELF_ABI_V1 diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index 8afe0f0436d4..cd3f7d2e55ca 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -142,6 +142,7 @@ config RISCV select HAVE_DYNAMIC_FTRACE if !XIP_KERNEL && MMU && (CLANG_SUPPORTS_DYNAMIC_FTRACE || GCC_SUPPORTS_DYNAMIC_FTRACE) select HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALLS select HAVE_DYNAMIC_FTRACE_WITH_ARGS if HAVE_DYNAMIC_FTRACE + select HAVE_FTRACE_GRAPH_FUNC select HAVE_FTRACE_MCOUNT_RECORD if !XIP_KERNEL select HAVE_FUNCTION_GRAPH_TRACER select HAVE_FUNCTION_GRAPH_FREGS diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 22cb0d181552..b42f9e7f1b87 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -232,6 +232,7 @@ config X86 select HAVE_EXIT_THREAD select HAVE_GUP_FAST select HAVE_FENTRY if X86_64 || DYNAMIC_FTRACE + select HAVE_FTRACE_GRAPH_FUNC if HAVE_FUNCTION_GRAPH_TRACER select HAVE_FTRACE_MCOUNT_RECORD select HAVE_FUNCTION_GRAPH_FREGS if HAVE_FUNCTION_GRAPH_TRACER select HAVE_FUNCTION_GRAPH_TRACER if X86_32 || (X86_64 && DYNAMIC_FTRACE) diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig index 82654bbfad9a..2fc55a1a88aa 100644 --- a/kernel/trace/Kconfig +++ b/kernel/trace/Kconfig @@ -34,6 +34,11 @@ config HAVE_FUNCTION_GRAPH_TRACER config HAVE_FUNCTION_GRAPH_FREGS bool +config HAVE_FTRACE_GRAPH_FUNC + bool + help + True if ftrace_graph_func() is defined. + config HAVE_DYNAMIC_FTRACE bool help