/* SPDX-License-Identifier: GPL-2.0 */ /* * This is similar to the trace_events.h file, but is to only * create custom trace events to be attached to existing tracepoints. * Where as the TRACE_EVENT() macro (from trace_events.h) will create * both the trace event and the tracepoint it will attach the event to, * TRACE_CUSTOM_EVENT() is to create only a custom version of an existing * trace event (created by TRACE_EVENT() or DEFINE_EVENT()), and will * be placed in the "custom" system. */ #include <linux/trace_events.h> /* All custom events are placed in the custom group */ #undef TRACE_SYSTEM #define TRACE_SYSTEM … #ifndef TRACE_SYSTEM_VAR #define TRACE_SYSTEM_VAR … #endif /* The init stage creates the system string and enum mappings */ #include "stages/init.h" #undef TRACE_CUSTOM_EVENT #define TRACE_CUSTOM_EVENT … /* Stage 1 creates the structure of the recorded event layout */ #include "stages/stage1_struct_define.h" #undef DECLARE_CUSTOM_EVENT_CLASS #define DECLARE_CUSTOM_EVENT_CLASS … #undef DEFINE_CUSTOM_EVENT #define DEFINE_CUSTOM_EVENT … #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) /* Stage 2 creates the custom class */ #include "stages/stage2_data_offsets.h" #undef DECLARE_CUSTOM_EVENT_CLASS #define DECLARE_CUSTOM_EVENT_CLASS … #undef DEFINE_CUSTOM_EVENT #define DEFINE_CUSTOM_EVENT … #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) /* Stage 3 create the way to print the custom event */ #include "stages/stage3_trace_output.h" #undef DECLARE_CUSTOM_EVENT_CLASS #define DECLARE_CUSTOM_EVENT_CLASS … #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) /* Stage 4 creates the offset layout for the fields */ #include "stages/stage4_event_fields.h" #undef DECLARE_CUSTOM_EVENT_CLASS #define DECLARE_CUSTOM_EVENT_CLASS … #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) /* Stage 5 creates the helper function for dynamic fields */ #include "stages/stage5_get_offsets.h" #undef DECLARE_CUSTOM_EVENT_CLASS #define DECLARE_CUSTOM_EVENT_CLASS … #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) /* Stage 6 creates the probe function that records the event */ #include "stages/stage6_event_callback.h" #undef DECLARE_CUSTOM_EVENT_CLASS #define DECLARE_CUSTOM_EVENT_CLASS … /* * The ftrace_test_custom_probe is compiled out, it is only here as a build time check * to make sure that if the tracepoint handling changes, the ftrace probe will * fail to compile unless it too is updated. */ #undef DEFINE_CUSTOM_EVENT #define DEFINE_CUSTOM_EVENT … #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) /* Stage 7 creates the actual class and event structure for the custom event */ #include "stages/stage7_class_define.h" #undef DECLARE_CUSTOM_EVENT_CLASS #define DECLARE_CUSTOM_EVENT_CLASS … #undef DEFINE_CUSTOM_EVENT #define DEFINE_CUSTOM_EVENT … #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
Codebase Browser
linux