synth_event_trace_array(9)

💖 synth_event_trace_array(9) 💖

okay so bestie, this is the Kernel API Manual page for synth_event_trace_array(9) — the function that traces a synthetic event from an array. It’s giving low-level kernel realness, and we’re gonna get through every single detail together. ✨

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✨ NAME ✨

synth_event_trace_array — Trace a synthetic event from an array

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🌈 SYNOPSIS 🌈

int synth_event_trace_array (struct trace_event_file *file , u64 *vals ,
       unsigned int n_vals );

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💅 ARGUMENTS 💅

• file — the trace_event_file representing the synthetic event 🫶
• vals — array of values
• n_vals — the number of values in vals

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🦋 DESCRIPTION 🦋

Trace a synthetic event using the values passed in as vals. No cap.

The vals array is just an array of n_vals u64. The number of vals must match the number of fields in the synthetic event, and they must be in the same order as the synthetic event fields. Order matters, bestie — lineup is everything. 💅

All vals should be cast to u64, and string vals are just pointers to strings, cast to u64. Strings will be copied into space reserved in the event for the string, using these pointers. So the strings don’t just vibe there — they get copied into the event’s reserved string space through those pointers. 🎀

lowkey important: the values have to line up with the fields, in the same order. That’s the whole assignment. ✨

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🔥 RETURN 🔥

0 on success, err otherwise. That’s the return vibe, periodt. 💀✨

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🎀 SEE ALSO 🎀

• Kernel file: ./kernel/trace/trace_events_synth.c
• synth_event_add_field(9)
• synth_event_add_field_str(9)
• synth_event_add_fields(9)
• __synth_event_gen_cmd_start(9)
• synth_event_gen_cmd_array_start(9)
• synth_event_create(9)
• synth_event_delete(9)
• synth_event_cmd_init(9)
• synth_event_trace(9)
• synth_event_trace_start(9)
• synth_event_add_next_val(9)
• synth_event_add_val(9)
• synth_event_trace_end(9)

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🫶 that’s the whole page, bestie. Source/version vibes: ./kernel/trace, dated October 2026, page synth_event_trace_array(9). Stay iconic. 💅🌸