diff options
| author | Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> | 2014-04-17 17:18:00 +0900 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2014-04-24 10:03:02 +0200 |
| commit | fbc1963d2c1c4eb4651132a2c5c9d6111ada17d3 (patch) | |
| tree | f1fe435182c467a7fe42ffdaca1da7ce7e9a85b5 /kernel/trace/trace_probe.c | |
| parent | 55479f64756fc508182a05e35e52f01395a50d4d (diff) | |
kprobes, ftrace: Allow probing on some functions
There is no need to prohibit probing on the functions
used for preparation and uprobe only fetch functions.
Those are safely probed because those are not invoked
from kprobe's breakpoint/fault/debug handlers. So there
is no chance to cause recursive exceptions.
Following functions are now removed from the kprobes blacklist:
update_bitfield_fetch_param
free_bitfield_fetch_param
kprobe_register
FETCH_FUNC_NAME(stack, type) in trace_uprobe.c
FETCH_FUNC_NAME(memory, type) in trace_uprobe.c
FETCH_FUNC_NAME(memory, string) in trace_uprobe.c
FETCH_FUNC_NAME(memory, string_size) in trace_uprobe.c
FETCH_FUNC_NAME(file_offset, type) in trace_uprobe.c
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/20140417081800.26341.56504.stgit@ltc230.yrl.intra.hitachi.co.jp
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/trace/trace_probe.c')
| -rw-r--r-- | kernel/trace/trace_probe.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c index 8364a421b4df..d3a91e40a659 100644 --- a/kernel/trace/trace_probe.c +++ b/kernel/trace/trace_probe.c @@ -183,7 +183,7 @@ DEFINE_BASIC_FETCH_FUNCS(bitfield) #define fetch_bitfield_string NULL #define fetch_bitfield_string_size NULL -static __kprobes void +static void update_bitfield_fetch_param(struct bitfield_fetch_param *data) { /* @@ -196,7 +196,7 @@ update_bitfield_fetch_param(struct bitfield_fetch_param *data) update_symbol_cache(data->orig.data); } -static __kprobes void +static void free_bitfield_fetch_param(struct bitfield_fetch_param *data) { /* |