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authorMasami Hiramatsu <mhiramat@kernel.org>2022-03-15 17:02:00 +0300
committerAlexei Starovoitov <ast@kernel.org>2022-03-18 06:16:58 +0300
commit6ee64cc3020b5b5537827c71d8eaac814ad4d346 (patch)
tree361bd8b1ce2bc869da84c12fd912ffae1905b7a8 /samples/Kconfig
parent5b0ab78998e32564a011b14c4c7f9c81e2d42b9d (diff)
downloadlinux-6ee64cc3020b5b5537827c71d8eaac814ad4d346.tar.xz
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/Kconfig7
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