- * Stage 6.1 of tracepoint generation: generate event notifier probes
- *
- * Create the probe function. This function evaluates the filter bytecode and
- * queue a notification to be sent to userspace.
- */
-
-#include <lttng/events-reset.h> /* Reset all macros within LTTNG_TRACEPOINT_EVENT */
-
-#undef TP_PROTO
-#define TP_PROTO(...) __VA_ARGS__
-
-#undef TP_ARGS
-#define TP_ARGS(...) __VA_ARGS__
-
-#undef TP_FIELDS
-#define TP_FIELDS(...) __VA_ARGS__
-
-#undef TP_locvar
-#define TP_locvar(...) __VA_ARGS__
-
-#undef TP_code_pre
-#define TP_code_pre(...) __VA_ARGS__
-
-#undef TP_code_post
-#define TP_code_post(...) __VA_ARGS__
-
-/*
- * 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.
- * Same for double-precision floats. Those fit within
- * 2*sizeof(unsigned long) for all supported architectures.
- * Perform UNION (||) of filter runtime list.
- */
-#undef LTTNG_TRACEPOINT_EVENT_CLASS_CODE
-#define LTTNG_TRACEPOINT_EVENT_CLASS_CODE(_name, _proto, _args, _locvar, _code_pre, _fields, _code_post) \
-static void __event_notifier_probe__##_name(void *__data, _proto) \
-{ \
- struct probe_local_vars { _locvar }; \
- struct lttng_event_notifier *__event_notifier = __data; \
- struct lttng_probe_ctx __lttng_probe_ctx = { \
- .event = NULL, \
- .event_notifier = __event_notifier, \
- .interruptible = !irqs_disabled(), \
- }; \
- union { \
- size_t __dynamic_len_removed[ARRAY_SIZE(__event_fields___##_name)]; \
- char __interpreter_stack_data[2 * sizeof(unsigned long) * ARRAY_SIZE(__event_fields___##_name)]; \
- } __stackvar; \
- struct probe_local_vars __tp_locvar; \
- struct probe_local_vars *tp_locvar __attribute__((unused)) = \
- &__tp_locvar; \
- struct lttng_kernel_notifier_ctx __notif_ctx; \
- bool __interpreter_stack_prepared = false; \
- \
- if (unlikely(!READ_ONCE(__event_notifier->enabled))) \
- return; \
- _code_pre \
- if (unlikely(!list_empty(&__event_notifier->filter_bytecode_runtime_head))) { \
- struct lttng_bytecode_runtime *bc_runtime; \
- int __filter_record = __event_notifier->has_enablers_without_bytecode; \
- \
- __event_prepare_interpreter_stack__##_name(__stackvar.__interpreter_stack_data, \
- tp_locvar, _args); \
- __interpreter_stack_prepared = true; \
- lttng_list_for_each_entry_rcu(bc_runtime, &__event_notifier->filter_bytecode_runtime_head, node) { \
- if (unlikely(bc_runtime->interpreter_funcs.filter(bc_runtime, &__lttng_probe_ctx, \
- __stackvar.__interpreter_stack_data) & LTTNG_INTERPRETER_RECORD_FLAG)) \
- __filter_record = 1; \
- } \
- if (likely(!__filter_record)) \
- goto __post; \
- } \
- \
- __notif_ctx.eval_capture = LTTNG_READ_ONCE(__event_notifier->eval_capture); \
- if (unlikely(!__interpreter_stack_prepared && __notif_ctx.eval_capture)) \
- __event_prepare_interpreter_stack__##_name( \
- __stackvar.__interpreter_stack_data, \
- tp_locvar, _args); \
- \
- __event_notifier->send_notification(__event_notifier, \
- &__lttng_probe_ctx, \
- __stackvar.__interpreter_stack_data, \
- &__notif_ctx); \
- \
-__post: \
- _code_post \
- return; \
-}
-
-#undef LTTNG_TRACEPOINT_EVENT_CLASS_CODE_NOARGS
-#define LTTNG_TRACEPOINT_EVENT_CLASS_CODE_NOARGS(_name, _locvar, _code_pre, _fields, _code_post) \
-static void __event_notifier_probe__##_name(void *__data) \
-{ \
- struct probe_local_vars { _locvar }; \
- struct lttng_event_notifier *__event_notifier = __data; \
- struct lttng_probe_ctx __lttng_probe_ctx = { \
- .event = NULL, \
- .event_notifier = __event_notifier, \
- .interruptible = !irqs_disabled(), \
- }; \
- union { \
- size_t __dynamic_len_removed[ARRAY_SIZE(__event_fields___##_name)]; \
- char __interpreter_stack_data[2 * sizeof(unsigned long) * ARRAY_SIZE(__event_fields___##_name)]; \
- } __stackvar; \
- struct probe_local_vars __tp_locvar; \
- struct probe_local_vars *tp_locvar __attribute__((unused)) = \
- &__tp_locvar; \
- struct lttng_kernel_notifier_ctx __notif_ctx; \
- bool __interpreter_stack_prepared = false; \
- \
- if (unlikely(!READ_ONCE(__event_notifier->enabled))) \
- return; \
- _code_pre \
- if (unlikely(!list_empty(&__event_notifier->filter_bytecode_runtime_head))) { \
- struct lttng_bytecode_runtime *bc_runtime; \
- int __filter_record = __event_notifier->has_enablers_without_bytecode; \
- \
- __event_prepare_interpreter_stack__##_name(__stackvar.__interpreter_stack_data, \
- tp_locvar); \
- __interpreter_stack_prepared = true; \
- lttng_list_for_each_entry_rcu(bc_runtime, &__event_notifier->filter_bytecode_runtime_head, node) { \
- if (unlikely(bc_runtime->interpreter_funcs.filter(bc_runtime, &__lttng_probe_ctx, \
- __stackvar.__interpreter_stack_data) & LTTNG_INTERPRETER_RECORD_FLAG)) \
- __filter_record = 1; \
- } \
- if (likely(!__filter_record)) \
- goto __post; \
- } \
- \
- __notif_ctx.eval_capture = LTTNG_READ_ONCE(__event_notifier->eval_capture); \
- if (unlikely(!__interpreter_stack_prepared && __notif_ctx.eval_capture)) \
- __event_prepare_interpreter_stack__##_name( \
- __stackvar.__interpreter_stack_data, \
- tp_locvar); \
- \
- __event_notifier->send_notification(__event_notifier, \
- &__lttng_probe_ctx, \
- __stackvar.__interpreter_stack_data, \
- &__notif_ctx); \
-__post: \
- _code_post \
- return; \
-}
-
-#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
-/*
- * Stage 7 of the trace events.