pt_buffer_region(9)

💖 pt_buffer_region(9) 💖

okay so bestie, welcome to the Kernel API Manual — yes it's a section 9 page, and yes we're gonna get through it together 🫶 this one is short and sweet, no cap.

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✨ NAME ✨

pt_buffer_region — bestie, all this does is obtain the current output region's address 💅 that's it. that's the whole gig.

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🌸 SYNOPSIS 🌸

void * pt_buffer_region (struct pt_buffer *buf );

like, she returns a void *, she takes one struct pt_buffer *, she's lowkey iconic for how little she asks of you 🔥

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🎀 ARGUMENTS 🎀

• buf — the PT buffer 💖 hand her your buffer and she'll do the thing. that's the vibe.

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🦋 SEE ALSO 🦋

okay this is the part where she tags literally everyone in the group chat 😭 and ngl it's a lot of people, but we're not skipping anybody, periodt:

• the kernel file ./arch/x86/events/intel/pt.c — the mothership 🏠
• struct topa(9)
• struct topa_page(9)
• topa_alloc(9)
• topa_free(9)
• topa_insert_table(9)
• topa_table_full(9)
• topa_insert_pages(9)
• pt_topa_dump(9)
• pt_buffer_advance(9)
• pt_update_head(9)
• pt_buffer_region_size(9) — her cousin, clearly 🫶
• pt_handle_status(9)
• pt_read_offset(9)
• pt_buffer_reset_markers(9)
• pt_buffer_reset_offsets(9)
• pt_buffer_fini_topa(9)
• pt_buffer_init_topa(9)
• pt_buffer_setup_aux(9)
• pt_buffer_free_aux(9)
• intel_pt_interrupt(9)

go read them all, i'll wait 💜

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fr fr bestie, if you're debugging PT stuff and you don't know what region you're writing into, this is your girl. no cap. 😭💅

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that's the whole page!! 🧚 mwah 💋 this lil masterpiece lives over in ./arch/x86/events/intel, dated October 2026, and it's filed under pt_buffer_region(9) in that same Kernel API Manual we opened with. slay, bye 👑✨