diff options
| author | Jason Baron <jbaron@redhat.com> | 2009-08-10 16:52:31 -0400 |
|---|---|---|
| committer | Frederic Weisbecker <fweisbec@gmail.com> | 2009-08-11 20:35:26 +0200 |
| commit | a871bd33a6c0bc86fb47cd02ea2650dd43d3d95f (patch) | |
| tree | b5720cdb3168ba0894b4bd2c1acc004cb19a692c /include/trace/syscall.h | |
| parent | 63fbdab3157b72467013fe4dcf88c85e45280ef7 (diff) | |
| download | lwn-a871bd33a6c0bc86fb47cd02ea2650dd43d3d95f.tar.gz lwn-a871bd33a6c0bc86fb47cd02ea2650dd43d3d95f.zip | |
tracing: Add syscall tracepoints
add two tracepoints in syscall exit and entry path, conditioned on
TIF_SYSCALL_FTRACE. Supports the syscall trace event code.
Signed-off-by: Jason Baron <jbaron@redhat.com>
Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Jiaying Zhang <jiayingz@google.com>
Cc: Martin Bligh <mbligh@google.com>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Cc: Masami Hiramatsu <mhiramat@redhat.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Diffstat (limited to 'include/trace/syscall.h')
| -rw-r--r-- | include/trace/syscall.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/include/trace/syscall.h b/include/trace/syscall.h index c55fcce4fbb2..3951d774de18 100644 --- a/include/trace/syscall.h +++ b/include/trace/syscall.h @@ -1,8 +1,28 @@ #ifndef _TRACE_SYSCALL_H #define _TRACE_SYSCALL_H +#include <linux/tracepoint.h> + #include <asm/ptrace.h> + +extern void syscall_regfunc(void); +extern void syscall_unregfunc(void); + +DECLARE_TRACE_WITH_CALLBACK(syscall_enter, + TP_PROTO(struct pt_regs *regs, long id), + TP_ARGS(regs, id), + syscall_regfunc, + syscall_unregfunc +); + +DECLARE_TRACE_WITH_CALLBACK(syscall_exit, + TP_PROTO(struct pt_regs *regs, long ret), + TP_ARGS(regs, ret), + syscall_regfunc, + syscall_unregfunc +); + /* * A syscall entry in the ftrace syscalls array. * |