tracepoint: support TP_ARGS(void)

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

diff --git a/include/lttng/tracepoint.h b/include/lttng/tracepoint.h
index ffc37c175c1a7ac9aabcd5dfea38341219fd1bf8..2ca459899886a573ba3f8ad74d1db9dc3ec83072 100644 (file)
--- a/include/lttng/tracepoint.h
+++ b/include/lttng/tracepoint.h
@@ -73,7 +73,9 @@ extern "C" {
 #define TP_COMBINE_TOKENS(_tokena, _tokenb)        TP_COMBINE_TOKENS1(_tokena, _tokenb)
 
 /* _TP_EVEN* extracts the vars names. */
+/* 0 and 1 are for void */
 #define _TP_EVEN0()
+#define _TP_EVEN1(a)
 #define _TP_EVEN2(a,b)                                         b
 #define _TP_EVEN4(a,b,c,d)                                     b,d
 #define _TP_EVEN6(a,b,c,d,e,f)                                 b,d,f
@@ -85,7 +87,9 @@ extern "C" {
 #define _TP_EVEN18(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r)                b,d,f,h,j,l,n,p,r
 #define _TP_EVEN20(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t)    b,d,f,h,j,l,n,p,r,t
 
+/* 0 and 1 are for void */
 #define _TP_EVEN_DATA0()                                               __tp_cb_data
+#define _TP_EVEN_DATA1(a)                                              __tp_cb_data
 #define _TP_EVEN_DATA2(a,b)                                            __tp_cb_data,b
 #define _TP_EVEN_DATA4(a,b,c,d)                                                __tp_cb_data,b,d
 #define _TP_EVEN_DATA6(a,b,c,d,e,f)                                    __tp_cb_data,b,d,f
@@ -98,7 +102,9 @@ extern "C" {
 #define _TP_EVEN_DATA20(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t)       __tp_cb_data,b,d,f,h,j,l,n,p,r,t
 
 /* _TP_SPLIT extracts tuples of type, var */
+/* 0 and 1 are for void */
 #define _TP_SPLIT0()
+#define _TP_SPLIT1(a)
 #define _TP_SPLIT2(a,b)                                                a b
 #define _TP_SPLIT4(a,b,c,d)                                    a b,c d
 #define _TP_SPLIT6(a,b,c,d,e,f)                                        a b,c d,e f
@@ -110,7 +116,9 @@ extern "C" {
 #define _TP_SPLIT18(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r)       a b,c d,e f,g h,i j,k l,m n,o p,q r
 #define _TP_SPLIT20(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t)   a b,c d,e f,g h,i j,k l,m n,o p,q r,s t
 
+/* 0 and 1 are for void */
 #define _TP_SPLIT_DATA0()                                              void *__tp_cb_data
+#define _TP_SPLIT_DATA1(a)                                             void *__tp_cb_data
 #define _TP_SPLIT_DATA2(a,b)                                           void *__tp_cb_data,a b
 #define _TP_SPLIT_DATA4(a,b,c,d)                                       void *__tp_cb_data,a b,c d
 #define _TP_SPLIT_DATA6(a,b,c,d,e,f)                                   void *__tp_cb_data,a b,c d,e f