From: Steven Rostedt <rostedt@goodmis.org>
To: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
Andrew Morton <akpm@linux-foundation.org>,
Alexei Starovoitov <alexei.starovoitov@gmail.com>,
Florent Revest <revest@chromium.org>,
Martin KaFai Lau <martin.lau@linux.dev>,
bpf <bpf@vger.kernel.org>, Sven Schnelle <svens@linux.ibm.com>,
Alexei Starovoitov <ast@kernel.org>, Jiri Olsa <jolsa@kernel.org>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Alan Maguire <alan.maguire@oracle.com>,
Peter Zijlstra <peterz@infradead.org>,
Thomas Gleixner <tglx@linutronix.de>, Guo Ren <guoren@kernel.org>
Subject: [PATCH 09/20] ftrace: Allow ftrace startup flags to exist without dynamic ftrace
Date: Fri, 24 May 2024 22:37:01 -0400 [thread overview]
Message-ID: <20240525023742.624243704@goodmis.org> (raw)
In-Reply-To: 20240525023652.903909489@goodmis.org
From: "Steven Rostedt (VMware)" <rostedt@goodmis.org>
Some of the flags for ftrace_startup() may be exposed even when
CONFIG_DYNAMIC_FTRACE is not configured in. This is fine as the difference
between dynamic ftrace and static ftrace is done within the internals of
ftrace itself. No need to have use cases fail to compile because dynamic
ftrace is disabled.
This change is needed to move some of the logic of what is passed to
ftrace_startup() out of the parameters of ftrace_startup().
Link: https://lore.kernel.org/linux-trace-kernel/171509100890.162236.4362350342549122222.stgit@devnote2
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
---
include/linux/ftrace.h | 18 +++++++++---------
1 file changed, 9 insertions(+), 9 deletions(-)
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index f7a948337d39..942a1f767280 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -509,6 +509,15 @@ static inline void stack_tracer_disable(void) { }
static inline void stack_tracer_enable(void) { }
#endif
+enum {
+ FTRACE_UPDATE_CALLS = (1 << 0),
+ FTRACE_DISABLE_CALLS = (1 << 1),
+ FTRACE_UPDATE_TRACE_FUNC = (1 << 2),
+ FTRACE_START_FUNC_RET = (1 << 3),
+ FTRACE_STOP_FUNC_RET = (1 << 4),
+ FTRACE_MAY_SLEEP = (1 << 5),
+};
+
#ifdef CONFIG_DYNAMIC_FTRACE
void ftrace_arch_code_modify_prepare(void);
@@ -603,15 +612,6 @@ void ftrace_set_global_notrace(unsigned char *buf, int len, int reset);
void ftrace_free_filter(struct ftrace_ops *ops);
void ftrace_ops_set_global_filter(struct ftrace_ops *ops);
-enum {
- FTRACE_UPDATE_CALLS = (1 << 0),
- FTRACE_DISABLE_CALLS = (1 << 1),
- FTRACE_UPDATE_TRACE_FUNC = (1 << 2),
- FTRACE_START_FUNC_RET = (1 << 3),
- FTRACE_STOP_FUNC_RET = (1 << 4),
- FTRACE_MAY_SLEEP = (1 << 5),
-};
-
/*
* The FTRACE_UPDATE_* enum is used to pass information back
* from the ftrace_update_record() and ftrace_test_record()
--
2.43.0
next prev parent reply other threads:[~2024-05-25 2:36 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-25 2:36 [PATCH 00/20] function_graph: Allow multiple users for function graph tracing Steven Rostedt
2024-05-25 2:36 ` [PATCH 01/20] function_graph: Convert ret_stack to a series of longs Steven Rostedt
2024-05-25 2:36 ` [PATCH 02/20] fgraph: Use BUILD_BUG_ON() to make sure we have structures divisible by long Steven Rostedt
2024-05-25 2:36 ` [PATCH 03/20] function_graph: Add an array structure that will allow multiple callbacks Steven Rostedt
2024-05-25 2:36 ` [PATCH 04/20] function_graph: Allow multiple users to attach to function graph Steven Rostedt
2024-05-27 0:34 ` Masami Hiramatsu
2024-05-27 1:17 ` Steven Rostedt
2024-05-25 2:36 ` [PATCH 05/20] function_graph: Handle tail calls for stack unwinding Steven Rostedt
2024-05-25 2:36 ` [PATCH 06/20] function_graph: Remove logic around ftrace_graph_entry and return Steven Rostedt
2024-05-25 2:36 ` [PATCH 07/20] ftrace/function_graph: Pass fgraph_ops to function graph callbacks Steven Rostedt
2024-05-25 2:37 ` [PATCH 08/20] ftrace: Allow function_graph tracer to be enabled in instances Steven Rostedt
2024-05-25 2:37 ` Steven Rostedt [this message]
2024-05-25 2:37 ` [PATCH 10/20] function_graph: Have the instances use their own ftrace_ops for filtering Steven Rostedt
2024-05-31 2:30 ` Steven Rostedt
2024-05-31 3:12 ` Masami Hiramatsu
2024-05-31 6:03 ` Steven Rostedt
2024-05-31 14:50 ` Masami Hiramatsu
2024-05-31 22:49 ` Steven Rostedt
2024-06-01 19:19 ` Steven Rostedt
2024-06-02 2:40 ` Masami Hiramatsu
2024-05-25 2:37 ` [PATCH 11/20] function_graph: Use a simple LRU for fgraph_array index number Steven Rostedt
2024-05-25 2:37 ` [PATCH 12/20] function_graph: Add "task variables" per task for fgraph_ops Steven Rostedt
2024-05-25 2:37 ` [PATCH 13/20] function_graph: Move set_graph_function tests to shadow stack global var Steven Rostedt
2024-05-25 2:37 ` [PATCH 14/20] function_graph: Move graph depth stored data " Steven Rostedt
2024-05-25 2:37 ` [PATCH 15/20] function_graph: Move graph notrace bit " Steven Rostedt
2024-05-25 2:37 ` [PATCH 16/20] function_graph: Implement fgraph_reserve_data() and fgraph_retrieve_data() Steven Rostedt
2024-05-25 2:37 ` [PATCH 17/20] function_graph: Add selftest for passing local variables Steven Rostedt
2024-05-25 2:37 ` [PATCH 18/20] ftrace: Add multiple fgraph storage selftest Steven Rostedt
2024-05-25 2:37 ` [PATCH 19/20] function_graph: Use for_each_set_bit() in __ftrace_return_to_handler() Steven Rostedt
2024-05-26 23:58 ` Masami Hiramatsu
2024-05-27 0:04 ` Masami Hiramatsu
2024-05-27 0:32 ` Steven Rostedt
2024-05-25 2:37 ` [PATCH 20/20] function_graph: Use bitmask to loop on fgraph entry Steven Rostedt
2024-05-27 0:09 ` Masami Hiramatsu
2024-05-27 0:33 ` Steven Rostedt
2024-05-27 0:37 ` [PATCH 00/20] function_graph: Allow multiple users for function graph tracing Masami Hiramatsu
2024-05-27 1:18 ` Steven Rostedt
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