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- /* SPDX-License-Identifier: GPL-2.0 */
- #undef TRACE_SYSTEM_VAR
- #ifdef CONFIG_PERF_EVENTS
- #undef __entry
- #define __entry entry
- #undef __get_dynamic_array
- #define __get_dynamic_array(field) \
- ((void *)__entry + (__entry->__data_loc_##field & 0xffff))
- #undef __get_dynamic_array_len
- #define __get_dynamic_array_len(field) \
- ((__entry->__data_loc_##field >> 16) & 0xffff)
- #undef __get_str
- #define __get_str(field) ((char *)__get_dynamic_array(field))
- #undef __get_bitmask
- #define __get_bitmask(field) (char *)__get_dynamic_array(field)
- #undef __get_sockaddr
- #define __get_sockaddr(field) ((struct sockaddr *)__get_dynamic_array(field))
- #undef __get_rel_dynamic_array
- #define __get_rel_dynamic_array(field) \
- ((void *)__entry + \
- offsetof(typeof(*__entry), __rel_loc_##field) + \
- sizeof(__entry->__rel_loc_##field) + \
- (__entry->__rel_loc_##field & 0xffff))
- #undef __get_rel_dynamic_array_len
- #define __get_rel_dynamic_array_len(field) \
- ((__entry->__rel_loc_##field >> 16) & 0xffff)
- #undef __get_rel_str
- #define __get_rel_str(field) ((char *)__get_rel_dynamic_array(field))
- #undef __get_rel_bitmask
- #define __get_rel_bitmask(field) (char *)__get_rel_dynamic_array(field)
- #undef __get_rel_sockaddr
- #define __get_rel_sockaddr(field) ((struct sockaddr *)__get_rel_dynamic_array(field))
- #undef __perf_count
- #define __perf_count(c) (__count = (c))
- #undef __perf_task
- #define __perf_task(t) (__task = (t))
- #undef DECLARE_EVENT_CLASS
- #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
- static notrace void \
- perf_trace_##call(void *__data, proto) \
- { \
- struct trace_event_call *event_call = __data; \
- struct trace_event_data_offsets_##call __maybe_unused __data_offsets;\
- struct trace_event_raw_##call *entry; \
- struct pt_regs *__regs; \
- u64 __count = 1; \
- struct task_struct *__task = NULL; \
- struct hlist_head *head; \
- int __entry_size; \
- int __data_size; \
- int rctx; \
- \
- __data_size = trace_event_get_offsets_##call(&__data_offsets, args); \
- \
- head = this_cpu_ptr(event_call->perf_events); \
- if (!bpf_prog_array_valid(event_call) && \
- __builtin_constant_p(!__task) && !__task && \
- hlist_empty(head)) \
- return; \
- \
- __entry_size = ALIGN(__data_size + sizeof(*entry) + sizeof(u32),\
- sizeof(u64)); \
- __entry_size -= sizeof(u32); \
- \
- entry = perf_trace_buf_alloc(__entry_size, &__regs, &rctx); \
- if (!entry) \
- return; \
- \
- perf_fetch_caller_regs(__regs); \
- \
- tstruct \
- \
- { assign; } \
- \
- perf_trace_run_bpf_submit(entry, __entry_size, rctx, \
- event_call, __count, __regs, \
- head, __task); \
- }
- /*
- * This part is compiled out, it is only here as a build time check
- * to make sure that if the tracepoint handling changes, the
- * perf probe will fail to compile unless it too is updated.
- */
- #undef DEFINE_EVENT
- #define DEFINE_EVENT(template, call, proto, args) \
- static inline void perf_test_probe_##call(void) \
- { \
- check_trace_callback_type_##call(perf_trace_##template); \
- }
- #undef DEFINE_EVENT_PRINT
- #define DEFINE_EVENT_PRINT(template, name, proto, args, print) \
- DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))
- #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
- #endif /* CONFIG_PERF_EVENTS */
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