Commit 3d27d8cb authored by Josh Stone's avatar Josh Stone Committed by Frederic Weisbecker

tracing: Make syscall tracepoints conditional

The syscall enter/exit tracepoints are only supported on archs that
HAVE_SYSCALL_TRACEPOINTS, so the declarations should be #ifdef'ed.
Also, the definition of syscall_regfunc and syscall_unregfunc should
depend on this same config, rather than the ftrace-specific one.
Signed-off-by: default avatarJosh Stone <jistone@redhat.com>
Cc: Jason Baron <jbaron@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Li Zefan <lizf@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: Lai Jiangshan <laijs@cn.fujitsu.com>
LKML-Reference: <1251150194-1713-3-git-send-email-jistone@redhat.com>
Signed-off-by: default avatarFrederic Weisbecker <fweisbec@gmail.com>
parent 66700001
...@@ -8,6 +8,8 @@ ...@@ -8,6 +8,8 @@
#include <asm/ptrace.h> #include <asm/ptrace.h>
#ifdef CONFIG_HAVE_SYSCALL_TRACEPOINTS
extern void syscall_regfunc(void); extern void syscall_regfunc(void);
extern void syscall_unregfunc(void); extern void syscall_unregfunc(void);
...@@ -25,6 +27,8 @@ DECLARE_TRACE_WITH_CALLBACK(syscall_exit, ...@@ -25,6 +27,8 @@ DECLARE_TRACE_WITH_CALLBACK(syscall_exit,
syscall_unregfunc syscall_unregfunc
); );
#endif
/* /*
* A syscall entry in the ftrace syscalls array. * A syscall entry in the ftrace syscalls array.
* *
......
...@@ -576,7 +576,7 @@ __initcall(init_tracepoints); ...@@ -576,7 +576,7 @@ __initcall(init_tracepoints);
#endif /* CONFIG_MODULES */ #endif /* CONFIG_MODULES */
#ifdef CONFIG_FTRACE_SYSCALLS #ifdef CONFIG_HAVE_SYSCALL_TRACEPOINTS
static DEFINE_MUTEX(regfunc_mutex); static DEFINE_MUTEX(regfunc_mutex);
static int sys_tracepoint_refcount; static int sys_tracepoint_refcount;
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment