From: Steven Rostedt <rostedt@goodmis.org>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Jiri Olsa <jolsa@redhat.com>
Subject: [PATCH] ftrace/x86_64: Have function graph tracer depend on DYNAMIC_FTRACE
Date: Wed, 20 Oct 2021 23:35:55 -0400 [thread overview]
Message-ID: <20211020233555.16b0dbf2@rorschach.local.home> (raw)
From: "Steven Rostedt (VMware)" <rostedt@goodmis.org>
The function graph tracer is going to now depend on
ARCH_SUPPORTS_FTRACE_OPS, as that also means that it can support ftrace
args. Since ARCH_SUPPORTS_FTRACE_OPS depends on DYNAMIC_FTRACE, this
means that the function graph tracer for x86_64 will need to depend on
DYNAMIC_FTRACE.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
arch/x86/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index ab83c22d274e..e39e2bd6acc5 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -197,7 +197,7 @@ config X86
select HAVE_FAST_GUP
select HAVE_FENTRY if X86_64 || DYNAMIC_FTRACE
select HAVE_FTRACE_MCOUNT_RECORD
- select HAVE_FUNCTION_GRAPH_TRACER
+ select HAVE_FUNCTION_GRAPH_TRACER if X86_32 || (X86_64 && DYNAMIC_FTRACE)
select HAVE_FUNCTION_TRACER
select HAVE_GCC_PLUGINS
select HAVE_HW_BREAKPOINT
--
2.31.1
reply other threads:[~2021-10-21 3:36 UTC|newest]
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