diff options
| author | Sven Schnelle <svens@linux.ibm.com> | 2025-02-27 13:58:08 -0500 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2025-03-04 11:27:24 -0500 |
| commit | 76fe0337c2199988cb9ed7e41c05d687d95f2e18 (patch) | |
| tree | 2d7a55b407f4c1b7c3cf48f913a98016c3fbbf04 /kernel/trace/trace_entries.h | |
| parent | ftrace: Have funcgraph-args take affect during tracing (diff) | |
| download | linux-76fe0337c2199988cb9ed7e41c05d687d95f2e18.tar.gz linux-76fe0337c2199988cb9ed7e41c05d687d95f2e18.zip | |
ftrace: Add arguments to function tracer
Wire up the code to print function arguments in the function tracer.
This functionality can be enabled/disabled during runtime with
options/func-args.
ping-689 [004] b.... 77.170220: dummy_xmit(skb = 0x82904800, dev = 0x882d0000) <-dev_hard_start_xmit
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Guo Ren <guoren@kernel.org>
Cc: Donglin Peng <dolinux.peng@gmail.com>
Cc: Zheng Yejian <zhengyejian@huaweicloud.com>
Link: https://lore.kernel.org/20250227185823.154996172@goodmis.org
Reviewed-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Co-developed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_entries.h')
| -rw-r--r-- | kernel/trace/trace_entries.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/kernel/trace/trace_entries.h b/kernel/trace/trace_entries.h index 77a8ba3bc1e3..ee40d4e6ad1c 100644 --- a/kernel/trace/trace_entries.h +++ b/kernel/trace/trace_entries.h @@ -61,8 +61,9 @@ FTRACE_ENTRY_REG(function, ftrace_entry, TRACE_FN, F_STRUCT( - __field_fn( unsigned long, ip ) - __field_fn( unsigned long, parent_ip ) + __field_fn( unsigned long, ip ) + __field_fn( unsigned long, parent_ip ) + __dynamic_array( unsigned long, args ) ), F_printk(" %ps <-- %ps", |