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Fix: fetch caller address from tracef()
[lttng-ust.git]
/
include
/
lttng
/
ust-tracepoint-event.h
diff --git
a/include/lttng/ust-tracepoint-event.h
b/include/lttng/ust-tracepoint-event.h
index 8140b9df78c32425e0ea97f6185a4844bda9cfc7..6c32249c9a8730021d2b7c9f77ea0d315b53c7ab 100644
(file)
--- a/
include/lttng/ust-tracepoint-event.h
+++ b/
include/lttng/ust-tracepoint-event.h
@@
-75,6
+75,8
@@
/* Reset all macros within TRACEPOINT_EVENT */
#include <lttng/ust-tracepoint-event-reset.h>
/* Reset all macros within TRACEPOINT_EVENT */
#include <lttng/ust-tracepoint-event-reset.h>
+static inline lttng_ust_notrace
+void _TP_COMBINE_TOKENS(__tracepoint_provider_mismatch_, TRACEPOINT_PROVIDER)(void);
static inline
void _TP_COMBINE_TOKENS(__tracepoint_provider_mismatch_, TRACEPOINT_PROVIDER)(void)
{
static inline
void _TP_COMBINE_TOKENS(__tracepoint_provider_mismatch_, TRACEPOINT_PROVIDER)(void)
{
@@
-88,6
+90,8
@@
void _TP_COMBINE_TOKENS(__tracepoint_provider_mismatch_, TRACEPOINT_PROVIDER)(vo
#define TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _args) \
__tracepoint_provider_mismatch_##_provider();
#define TRACEPOINT_EVENT_INSTANCE(_provider, _template, _name, _args) \
__tracepoint_provider_mismatch_##_provider();
+static inline lttng_ust_notrace
+void _TP_COMBINE_TOKENS(__tracepoint_provider_check_, TRACEPOINT_PROVIDER)(void);
static inline
void _TP_COMBINE_TOKENS(__tracepoint_provider_check_, TRACEPOINT_PROVIDER)(void)
{
static inline
void _TP_COMBINE_TOKENS(__tracepoint_provider_check_, TRACEPOINT_PROVIDER)(void)
{
@@
-381,8
+385,8
@@
size_t __event_get_size__##_provider##___##_name(size_t *__dynamic_len, _TP_ARGS
const void *__ctf_tmp_ptr = (_src); \
memcpy(__stack_data, &__ctf_tmp_ulong, sizeof(unsigned long)); \
__stack_data += sizeof(unsigned long); \
const void *__ctf_tmp_ptr = (_src); \
memcpy(__stack_data, &__ctf_tmp_ulong, sizeof(unsigned long)); \
__stack_data += sizeof(unsigned long); \
- memcpy(__stack_data, &__ctf_tmp_ptr, sizeof(void *
*));
\
- __stack_data += sizeof(void *
*);
\
+ memcpy(__stack_data, &__ctf_tmp_ptr, sizeof(void *
));
\
+ __stack_data += sizeof(void *
);
\
}
#undef _ctf_sequence_encoded
}
#undef _ctf_sequence_encoded
@@
-393,16
+397,16
@@
size_t __event_get_size__##_provider##___##_name(size_t *__dynamic_len, _TP_ARGS
const void *__ctf_tmp_ptr = (_src); \
memcpy(__stack_data, &__ctf_tmp_ulong, sizeof(unsigned long)); \
__stack_data += sizeof(unsigned long); \
const void *__ctf_tmp_ptr = (_src); \
memcpy(__stack_data, &__ctf_tmp_ulong, sizeof(unsigned long)); \
__stack_data += sizeof(unsigned long); \
- memcpy(__stack_data, &__ctf_tmp_ptr, sizeof(void *
*));
\
- __stack_data += sizeof(void *
*);
\
+ memcpy(__stack_data, &__ctf_tmp_ptr, sizeof(void *
));
\
+ __stack_data += sizeof(void *
);
\
}
#undef _ctf_string
#define _ctf_string(_item, _src, _nowrite) \
{ \
const void *__ctf_tmp_ptr = (_src); \
}
#undef _ctf_string
#define _ctf_string(_item, _src, _nowrite) \
{ \
const void *__ctf_tmp_ptr = (_src); \
- memcpy(__stack_data, &__ctf_tmp_ptr, sizeof(void *
*));
\
- __stack_data += sizeof(void *
*);
\
+ memcpy(__stack_data, &__ctf_tmp_ptr, sizeof(void *
));
\
+ __stack_data += sizeof(void *
);
\
}
#undef TP_ARGS
}
#undef TP_ARGS
@@
-520,10
+524,24
@@
size_t __event_get_align__##_provider##___##_name(_TP_ARGS_PROTO(_args)) \
__chan->ops->event_write(&__ctx, _src, \
sizeof(_type) * __get_dynamic_len(dest));
__chan->ops->event_write(&__ctx, _src, \
sizeof(_type) * __get_dynamic_len(dest));
+/*
+ * __chan->ops->u.has_strcpy is a flag letting us know if the LTTng-UST
+ * tracepoint provider ABI implements event_strcpy. This dynamic check
+ * can be removed when the tracepoint provider ABI moves to 2.
+ */
+#if (LTTNG_UST_PROVIDER_MAJOR > 1)
+#error "Tracepoint probe provider major version has changed. Please remove dynamic check for has_strcpy."
+#endif
+
#undef _ctf_string
#define _ctf_string(_item, _src, _nowrite) \
lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(*(_src))); \
#undef _ctf_string
#define _ctf_string(_item, _src, _nowrite) \
lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(*(_src))); \
- __chan->ops->event_write(&__ctx, _src, __get_dynamic_len(dest));
+ if (__chan->ops->u.has_strcpy) \
+ __chan->ops->event_strcpy(&__ctx, _src, \
+ __get_dynamic_len(dest)); \
+ else \
+ __chan->ops->event_write(&__ctx, _src, \
+ __get_dynamic_len(dest));
/* Beware: this get len actually consumes the len value */
#undef __get_dynamic_len
/* Beware: this get len actually consumes the len value */
#undef __get_dynamic_len
@@
-547,6
+565,13
@@
size_t __event_get_align__##_provider##___##_name(_TP_ARGS_PROTO(_args)) \
#define _TP_SESSION_CHECK(session, csession) 1
#endif /* TP_SESSION_CHECK */
#define _TP_SESSION_CHECK(session, csession) 1
#endif /* TP_SESSION_CHECK */
+#undef _TP_IP_PARAM
+#ifdef TP_IP_PARAM
+#define _TP_IP_PARAM() ip
+#else /* TP_IP_PARAM */
+#define _TP_IP_PARAM() __builtin_return_address(0)
+#endif /* TP_IP_PARAM */
+
/*
* Using twice size for filter stack data to hold size and pointer for
* each field (worse case). For integers, max size required is 64-bit.
/*
* Using twice size for filter stack data to hold size and pointer for
* each field (worse case). For integers, max size required is 64-bit.
@@
-603,7
+628,7
@@
void __event_probe__##_provider##___##_name(_TP_ARGS_DATA_PROTO(_args)) \
__event_align = __event_get_align__##_provider##___##_name(_TP_ARGS_VAR(_args)); \
lib_ring_buffer_ctx_init(&__ctx, __chan->chan, __event, __event_len, \
__event_align, -1, __chan->handle); \
__event_align = __event_get_align__##_provider##___##_name(_TP_ARGS_VAR(_args)); \
lib_ring_buffer_ctx_init(&__ctx, __chan->chan, __event, __event_len, \
__event_align, -1, __chan->handle); \
- __ctx.ip = _
_builtin_return_address(0);
\
+ __ctx.ip = _
TP_IP_PARAM();
\
__ret = __chan->ops->event_reserve(&__ctx, __event->id); \
if (__ret < 0) \
return; \
__ret = __chan->ops->event_reserve(&__ctx, __event->id); \
if (__ret < 0) \
return; \
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