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| author | Masami Hiramatsu <mhiramat@kernel.org> | 2022-03-15 15:02:00 +0100 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2022-03-18 04:16:58 +0100 |
| commit | 6ee64cc3020b5b5537827c71d8eaac814ad4d346 (patch) | |
| tree | 361bd8b1ce2bc869da84c12fd912ffae1905b7a8 /samples/Kconfig | |
| parent | fprobe: Add exit_handler support (diff) | |
| download | linux-6ee64cc3020b5b5537827c71d8eaac814ad4d346.tar.xz linux-6ee64cc3020b5b5537827c71d8eaac814ad4d346.zip | |
fprobe: Add sample program for fprobe
Add a sample program for the fprobe. The sample_fprobe puts a fprobe on
kernel_clone() by default. This dump stack and some called address info
at the function entry and exit.
The sample_fprobe.ko gets 2 parameters.
- symbol: you can specify the comma separated symbols or wildcard symbol
pattern (in this case you can not use comma)
- stackdump: a bool value to enable or disable stack dump in the fprobe
handler.
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Tested-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/164735291987.1084943.4449670993752806840.stgit@devnote2
Diffstat (limited to 'samples/Kconfig')
| -rw-r--r-- | samples/Kconfig | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/samples/Kconfig b/samples/Kconfig index 22cc921ae291..8415d60ea5f4 100644 --- a/samples/Kconfig +++ b/samples/Kconfig @@ -73,6 +73,13 @@ config SAMPLE_HW_BREAKPOINT help This builds kernel hardware breakpoint example modules. +config SAMPLE_FPROBE + tristate "Build fprobe examples -- loadable modules only" + depends on FPROBE && m + help + This builds a fprobe example module. This module has an option 'symbol'. + You can specify a probed symbol or symbols separated with ','. + config SAMPLE_KFIFO tristate "Build kfifo examples -- loadable modules only" depends on m |