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authorJason Baron <jbaron@redhat.com>2009-08-11 00:52:53 +0400
committerFrederic Weisbecker <fweisbec@gmail.com>2009-08-11 22:35:28 +0400
commit64c12e0444fcc6b75eb49144ba46d43dbdc6bc8f (patch)
tree8fe7b546fe787061fca8f97ed2051f40f9b16a57 /arch/x86/kernel
parentfb34a08c3469b2be9eae626ccb96476b4687b810 (diff)
downloadlinux-64c12e0444fcc6b75eb49144ba46d43dbdc6bc8f.tar.xz
tracing: Add individual syscalls tracepoint id support
The current state of syscalls tracepoints generates only one event id for every syscall events. This patch associates an id with each syscall trace event, so that we can identify each syscall trace event using the 'perf' tool. 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 'arch/x86/kernel')
-rw-r--r--arch/x86/kernel/ftrace.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c
index 0d93d409b8d2..3cff1214e176 100644
--- a/arch/x86/kernel/ftrace.c
+++ b/arch/x86/kernel/ftrace.c
@@ -516,6 +516,16 @@ int syscall_name_to_nr(char *name)
return -1;
}
+void set_syscall_enter_id(int num, int id)
+{
+ syscalls_metadata[num]->enter_id = id;
+}
+
+void set_syscall_exit_id(int num, int id)
+{
+ syscalls_metadata[num]->exit_id = id;
+}
+
static int __init arch_init_ftrace_syscalls(void)
{
int i;