pt_read_offset(9)

💖 pt_read_offset(9) 💖

okay so this lil page is from the Kernel API Manual, and it's literally the translate-registers-into-buffer-pointers moment. iconic behavior, no cap ✨

📛 NAME 📛

pt_read_offset — translate registers into buffer pointers 🫶

🛠️ SYNOPSIS 🛠️

void pt_read_offset (struct pt_buffer *buf );

🎀 ARGUMENTS 🎀

• buf — the PT buffer. that's the one, bestie 💅

💅 DESCRIPTION 💅

It sets the buffer's output pointers from MSR values. that's the whole vibe, fr fr ✨

👀 SEE ALSO 👀

Kernel file: ./arch/x86/events/intel/pt.c — home base, iykyk 🦋

the whole friend group is:

• 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(9)
• pt_buffer_region_size(9)
• pt_handle_status(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)

signed off from source/version ./arch/x86/events/intel 💜 dated October 2026 — bye bestie, slay responsibly 🫶