From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Mon, 21 Jul 2014 01:04:04 +0000 (-0400)
Subject: syscall: extract pipe and pipe2 output args
X-Git-Tag: v2.6.0-rc1~43
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=af44bd3ac6ba40a39b18bb6210627d49328e337b;p=lttng-modules.git

syscall: extract pipe and pipe2 output args

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---

diff --git a/instrumentation/syscalls/headers/syscalls_pointers_override.h b/instrumentation/syscalls/headers/syscalls_pointers_override.h
index 316b3d20..b375395d 100644
--- a/instrumentation/syscalls/headers/syscalls_pointers_override.h
+++ b/instrumentation/syscalls/headers/syscalls_pointers_override.h
@@ -56,4 +56,34 @@ SC_TRACE_EVENT(getcpu,
 	TP_printk()
 )
 
+#define OVERRIDE_32_pipe
+#define OVERRIDE_64_pipe
+SC_TRACE_EVENT(pipe,
+	TP_PROTO(sc_exit(long ret,) int * fildes),
+	TP_ARGS(sc_exit(ret,) fildes),
+	TP_STRUCT__entry(sc_exit(__field(long, ret))
+		sc_out(__array(int, fildes, 2))
+	),
+	TP_fast_assign(sc_exit(tp_assign(ret, ret))
+		sc_out(tp_memcpy_from_user(fildes, fildes, 2))
+	),
+	TP_printk()
+)
+
+#define OVERRIDE_32_pipe2
+#define OVERRIDE_64_pipe2
+SC_TRACE_EVENT(pipe2,
+	TP_PROTO(sc_exit(long ret,) int * fildes, int flags),
+	TP_ARGS(sc_exit(ret,) fildes, flags),
+	TP_STRUCT__entry(sc_exit(__field(long, ret))
+		sc_out(__array(int, fildes, 2))
+		sc_in(__field(int, flags))
+	),
+	TP_fast_assign(sc_exit(tp_assign(ret, ret))
+		sc_out(tp_memcpy_from_user(fildes, fildes, 2))
+		sc_in(tp_assign(flags, flags))
+	),
+	TP_printk()
+)
+
 #endif /* CREATE_SYSCALL_TABLE */