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Message-ID: <173379666776.973433.8738064678091251274.stgit@devnote2> Date: Tue, 10 Dec 2024 11:11:07 +0900 From: "Masami Hiramatsu (Google)" <mhiramat@...nel.org> To: Alexei Starovoitov <alexei.starovoitov@...il.com>, Steven Rostedt <rostedt@...dmis.org>, Florent Revest <revest@...omium.org> Cc: linux-trace-kernel@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>, Martin KaFai Lau <martin.lau@...ux.dev>, bpf <bpf@...r.kernel.org>, Alexei Starovoitov <ast@...nel.org>, Jiri Olsa <jolsa@...nel.org>, Alan Maguire <alan.maguire@...cle.com>, Mark Rutland <mark.rutland@....com>, linux-arch@...r.kernel.org, Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>, Huacai Chen <chenhuacai@...nel.org>, WANG Xuerui <kernel@...0n.name>, Michael Ellerman <mpe@...erman.id.au>, Nicholas Piggin <npiggin@...il.com>, Christophe Leroy <christophe.leroy@...roup.eu>, Naveen N Rao <naveen@...nel.org>, Madhavan Srinivasan <maddy@...ux.ibm.com>, Paul Walmsley <paul.walmsley@...ive.com>, Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>, Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>, Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org, "H. Peter Anvin" <hpa@...or.com>, Mathieu Desnoyers <mathieu.desnoyers@...icios.com> Subject: [PATCH v21 11/20] ftrace: Add CONFIG_HAVE_FTRACE_GRAPH_FUNC From: Masami Hiramatsu (Google) <mhiramat@...nel.org> 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) <mhiramat@...nel.org> Cc: Catalin Marinas <catalin.marinas@....com> Cc: Will Deacon <will@...nel.org> Cc: Huacai Chen <chenhuacai@...nel.org> Cc: WANG Xuerui <kernel@...0n.name> Cc: Michael Ellerman <mpe@...erman.id.au> Cc: Nicholas Piggin <npiggin@...il.com> Cc: Christophe Leroy <christophe.leroy@...roup.eu> Cc: Naveen N Rao <naveen@...nel.org> Cc: Madhavan Srinivasan <maddy@...ux.ibm.com> Cc: Paul Walmsley <paul.walmsley@...ive.com> Cc: Palmer Dabbelt <palmer@...belt.com> Cc: Albert Ou <aou@...s.berkeley.edu> Cc: Thomas Gleixner <tglx@...utronix.de> Cc: Ingo Molnar <mingo@...hat.com> Cc: Borislav Petkov <bp@...en8.de> Cc: Dave Hansen <dave.hansen@...ux.intel.com> Cc: x86@...nel.org Cc: "H. Peter Anvin" <hpa@...or.com> Cc: Steven Rostedt <rostedt@...dmis.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@...icios.com> --- 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 5f086777dad9..a8644a5af9fb 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -216,6 +216,7 @@ 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 6396615ec035..fe0d9e549ca9 100644 --- a/arch/loongarch/Kconfig +++ b/arch/loongarch/Kconfig @@ -135,6 +135,7 @@ 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 a0ce777f9706..c28349ad1ac2 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -240,6 +240,7 @@ 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 1e807c61258f..c736e349f222 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -146,6 +146,7 @@ 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 6cb420783ef3..db435d159c1b 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -235,6 +235,7 @@ 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
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