X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=probes%2Flttng-events.h;h=596b706085847037d71298c42f7b059b92939da9;hb=0007344741ef65259bc52dea72259173dfbf96c0;hp=8a3a886b79dfac7ea561ad4b4f14cc04c42f124b;hpb=76e4f0175e477c9ad0368523e3c0dd2cbbfd3678;p=lttng-modules.git

diff --git a/probes/lttng-events.h b/probes/lttng-events.h
index 8a3a886b..596b7060 100644
--- a/probes/lttng-events.h
+++ b/probes/lttng-events.h
@@ -186,6 +186,10 @@ void trace_##_name(void *__data);
 #define __field_hex(_type, _item)				\
 	__field_full(_type, _item, __BYTE_ORDER, 16)
 
+#undef __field_oct
+#define __field_oct(_type, _item)				\
+	__field_full(_type, _item, __BYTE_ORDER, 8)
+
 #undef __field_network
 #define __field_network(_type, _item)				\
 	__field_full(_type, _item, __BIG_ENDIAN, 10)
@@ -236,6 +240,10 @@ void trace_##_name(void *__data);
 		},						\
 	},
 
+#undef __dynamic_array_enc_ext_2
+#define __dynamic_array_enc_ext_2(_type, _item, _length1, _length2, _order, _base, _encoding) \
+	__dynamic_array_enc_ext(_type, _item, _length1 + _length2, _order, _base, _encoding)
+
 #undef __dynamic_array
 #define __dynamic_array(_type, _item, _length)			\
 	__dynamic_array_enc_ext(_type, _item, _length, __BYTE_ORDER, 10, none)
@@ -248,6 +256,10 @@ void trace_##_name(void *__data);
 #define __dynamic_array_hex(_type, _item, _length)		\
 	__dynamic_array_enc_ext(_type, _item, _length, __BYTE_ORDER, 16, none)
 
+#undef __dynamic_array_text_2
+#define __dynamic_array_text_2(_type, _item, _length1, _length2)	\
+	__dynamic_array_enc_ext_2(_type, _item, _length1, _length2, __BYTE_ORDER, 10, UTF8)
+
 #undef __string
 #define __string(_item, _src)					\
 	{							\
@@ -319,6 +331,7 @@ static void __event_probe__##_name(void *__data);
 static const struct lttng_event_desc __event_desc___##_map = {		\
 	.fields = __event_fields___##_template,		     		\
 	.name = #_map,					     		\
+	.kname = #_name,				     		\
 	.probe_callback = (void *) TP_PROBE_CB(_template),   		\
 	.nr_fields = ARRAY_SIZE(__event_fields___##_template),		\
 	.owner = THIS_MODULE,				     		\
@@ -407,6 +420,18 @@ static __used struct lttng_probe_desc TP_ID(__probe_desc___, TRACE_SYSTEM) = {
 	__event_len += sizeof(_type) * __dynamic_len[__dynamic_len_idx];       \
 	__dynamic_len_idx++;
 
+#undef __dynamic_array_enc_ext_2
+#define __dynamic_array_enc_ext_2(_type, _item, _length1, _length2, _order, _base, _encoding)\
+	__event_len += lib_ring_buffer_align(__event_len, lttng_alignof(u32));   \
+	__event_len += sizeof(u32);					       \
+	__event_len += lib_ring_buffer_align(__event_len, lttng_alignof(_type)); \
+	__dynamic_len[__dynamic_len_idx] = (_length1);			       \
+	__event_len += sizeof(_type) * __dynamic_len[__dynamic_len_idx];       \
+	__dynamic_len_idx++;						       \
+	__dynamic_len[__dynamic_len_idx] = (_length2);			       \
+	__event_len += sizeof(_type) * __dynamic_len[__dynamic_len_idx];       \
+	__dynamic_len_idx++;
+
 #undef __string
 #define __string(_item, _src)						       \
 	__event_len += __dynamic_len[__dynamic_len_idx++] = strlen(_src) + 1;
@@ -464,6 +489,10 @@ static inline size_t __event_get_size__##_name(size_t *__dynamic_len, _proto) \
 	__event_align = max_t(size_t, __event_align, lttng_alignof(u32));	  \
 	__event_align = max_t(size_t, __event_align, lttng_alignof(_type));
 
+#undef __dynamic_array_enc_ext_2
+#define __dynamic_array_enc_ext_2(_type, _item, _length1, _length2, _order, _base, _encoding)\
+	__dynamic_array_enc_ext(_type, _item, _length1 + _length2, _order, _base, _encoding)
+
 #undef __string
 #define __string(_item, _src)
 
@@ -510,6 +539,10 @@ static inline size_t __event_get_align__##_name(_proto)			      \
 #define __dynamic_array_enc_ext(_type, _item, _length, _order, _base, _encoding)\
 	_type	_item;
 
+#undef __dynamic_array_enc_ext_2
+#define __dynamic_array_enc_ext_2(_type, _item, _length1, _length2, _order, _base, _encoding)\
+	__dynamic_array_enc_ext(_type, _item, _length1 + _length2, _order, _base, _encoding)
+
 #undef __string
 #define __string(_item, _src)			char _item;
 
@@ -559,6 +592,15 @@ __end_field_##_item##_1:						\
 	goto __assign_##_item##_2;					\
 __end_field_##_item##_2:
 
+#undef __dynamic_array_enc_ext_2
+#define __dynamic_array_enc_ext_2(_type, _item, _length1, _length2, _order, _base, _encoding)\
+	goto __assign_##_item##_1;					\
+__end_field_##_item##_1:						\
+	goto __assign_##_item##_2;					\
+__end_field_##_item##_2:						\
+	goto __assign_##_item##_3;					\
+__end_field_##_item##_3:
+
 #undef __string
 #define __string(_item, _src)						\
 	goto __assign_##_item;						\
@@ -616,10 +658,34 @@ __assign_##dest##_2:							\
 		sizeof(__typemap.dest) * __get_dynamic_array_len(dest));\
 	goto __end_field_##dest##_2;
 
+#undef tp_memcpy_dyn_gen_2
+#define tp_memcpy_dyn_gen_2(write_ops, dest, src1, src2)		\
+__assign_##dest##_1:							\
+	{								\
+		u32 __tmpl = __dynamic_len[__dynamic_len_idx]		\
+			+ __dynamic_len[__dynamic_len_idx + 1];		\
+		lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(u32));	\
+		__chan->ops->event_write(&__ctx, &__tmpl, sizeof(u32));	\
+	}								\
+	goto __end_field_##dest##_1;					\
+__assign_##dest##_2:							\
+	lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(__typemap.dest));	\
+	__chan->ops->write_ops(&__ctx, src1,				\
+		sizeof(__typemap.dest) * __get_dynamic_array_len(dest));\
+	goto __end_field_##dest##_2;					\
+__assign_##dest##_3:							\
+	__chan->ops->write_ops(&__ctx, src2,				\
+		sizeof(__typemap.dest) * __get_dynamic_array_len(dest));\
+	goto __end_field_##dest##_3;
+
 #undef tp_memcpy_dyn
 #define tp_memcpy_dyn(dest, src)					\
 	tp_memcpy_dyn_gen(event_write, dest, src)
 
+#undef tp_memcpy_dyn_2
+#define tp_memcpy_dyn_2(dest, src1, src2)				\
+	tp_memcpy_dyn_gen_2(event_write, dest, src1, src2)
+
 #undef tp_memcpy_dyn_from_user
 #define tp_memcpy_dyn_from_user(dest, src)				\
 	tp_memcpy_dyn_gen(event_write_from_user, dest, src)
@@ -629,24 +695,22 @@ __assign_##dest##_2:							\
  */
 #undef tp_copy_string_from_user
 #define tp_copy_string_from_user(dest, src)				\
-	__assign_##dest:						\
-	{								\
-		size_t __ustrlen;					\
-									\
-		if (0)							\
-			(void) __typemap.dest;				\
-		lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(__typemap.dest));\
-		__ustrlen = __get_dynamic_array_len(dest);		\
-		if (likely(__ustrlen > 1)) {				\
-			__chan->ops->event_write_from_user(&__ctx, src,	\
-				__ustrlen - 1);				\
-		}							\
-		__chan->ops->event_memset(&__ctx, 0, 1);		\
-	}								\
+__assign_##dest:							\
+	if (0)								\
+		(void) __typemap.dest;					\
+	lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(__typemap.dest)); \
+	__chan->ops->event_strcpy_from_user(&__ctx, src,		\
+		__get_dynamic_array_len(dest));				\
 	goto __end_field_##dest;
+
 #undef tp_strcpy
 #define tp_strcpy(dest, src)						\
-	tp_memcpy(dest, src, __get_dynamic_array_len(dest))
+__assign_##dest:							\
+	if (0)								\
+		(void) __typemap.dest;					\
+	lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(__typemap.dest)); \
+	__chan->ops->event_strcpy(&__ctx, src, __get_dynamic_array_len(dest)); \
+	goto __end_field_##dest;
 
 /* Named field types must be defined in lttng-types.h */
 
@@ -683,6 +747,11 @@ __assign_##dest##_2:							\
 #define _TP_SESSION_CHECK(session, csession)	1
 #endif /* TP_SESSION_CHECK */
 
+/*
+ * __dynamic_len array length is twice the number of fields due to
+ * __dynamic_array_enc_ext_2() and tp_memcpy_dyn_2(), which are the
+ * worse case, needing 2 entries per field.
+ */
 #undef DECLARE_EVENT_CLASS
 #define DECLARE_EVENT_CLASS(_name, _proto, _args, _tstruct, _assign, _print)  \
 static void __event_probe__##_name(void *__data, _proto)		      \
@@ -692,7 +761,7 @@ static void __event_probe__##_name(void *__data, _proto)		      \
 	struct lib_ring_buffer_ctx __ctx;				      \
 	size_t __event_len, __event_align;				      \
 	size_t __dynamic_len_idx = 0;					      \
-	size_t __dynamic_len[ARRAY_SIZE(__event_fields___##_name)];	      \
+	size_t __dynamic_len[2 * ARRAY_SIZE(__event_fields___##_name)];	      \
 	struct __event_typemap__##_name __typemap;			      \
 	int __ret;							      \
 									      \