ftrace_get_addr_new(9)

💅 ftrace_get_addr_new(9) — a Kernel API Manual moment

okay so bestie, welcome to ftrace_get_addr_new, straight out of the Kernel API Manual. this one's a tiny lil function with main character energy — it literally just tells you which address to set to. let's get into it 🎀

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✨ NAME ✨

ftrace_get_addr_new — Get the call address to set to. that's it, that's the whole vibe. 🦋

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🌸 SYNOPSIS 🌸

unsigned long ftrace_get_addr_new (struct dyn_ftrace *rec );

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💖 ARGUMENTS 💖

• rec — The ftrace record descriptor. the lil record bestie we're inspecting 🫶

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🔥 DESCRIPTION 🔥

okay so here's the tea ☕ — if the record has the FTRACE_FL_REGS flag set, that means it wants to convert to a callback that saves all regs. very extra of it, honestly.

if FTRACE_FL_REGS is not set? then it wants to convert to the normal callback. lowkey simpler, highkey valid. periodt. 💅

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⭐ RETURN ⭐

the address of the trampoline to set to 🧚

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🌈 SEE ALSO 🌈

Kernel file ./kernel/trace/ftrace.c, plus the whole friend group:

• ftrace_lookup_ip(9)
• ftrace_free_filter(9)
• ftrace_hash_move(9)
• ftrace_location_range(9)
• ftrace_location(9)
• ftrace_text_reserved(9)
• ftrace_bug(9)
• ftrace_update_record(9)
• ftrace_test_record(9)
• ftrace_get_addr_curr(9)
• ftrace_rec_iter_start(9)
• ftrace_rec_iter_next(9)
• ftrace_rec_iter_record(9)
• ftrace_run_stop_machine(9)
• arch_ftrace_update_code(9)
• ftrace_startup_subops(9)
• ftrace_shutdown_subops(9)
• ftrace_regex_open(9)
• allocate_ftrace_func_mapper(9)
• ftrace_func_mapper_find_ip(9)
• ftrace_func_mapper_add_ip(9)
• ftrace_func_mapper_remove_ip(9)
• free_ftrace_func_mapper(9)
• register_ftrace_direct(9)
• unregister_ftrace_direct(9)
• modify_ftrace_direct_nolock(9)
• modify_ftrace_direct(9)
• hash_add(9)
• update_ftrace_direct_add(9)
• hash_sub(9)
• update_ftrace_direct_del(9)
• update_ftrace_direct_mod(9)
• ftrace_set_filter_ip(9)
• ftrace_set_filter_ips(9)
• ftrace_ops_set_global_filter(9)
• ftrace_set_filter(9)
• ftrace_set_notrace(9)
• ftrace_set_global_filter(9)
• ftrace_set_global_notrace(9)
• ftrace_ops_get_func(9)
• ftrace_kill(9)
• ftrace_is_dead(9)
• register_ftrace_function(9)
• unregister_ftrace_function(9)
• ftrace_lookup_symbols(9)

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ngl bestie that's a lot of cross-references. you're gonna be scrolling like it's your fyp 😭 but every single one is right there, no cap.

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and that's the whole page!! mwah 💋 this lil drop came from ./kernel/trace, dated October 2026, and it's signed ftrace_get_addr_new(9) — slay, go read some kernel source, i'm obsessed with u 🎀✨