die_find_realfunc(9)

💅 die_find_realfunc(9) 💅

okay bestie, welcome to the Kernel API Manual corner of the group chat — today’s main character is die_find_realfunc(9), and the name is literally giving “find the real one” energy. ✨

---

🎀 NAME 🎀

die_find_realfunc — search a non-inlined function at a given address. No cap, that’s the whole plot. 🫶

---

🌸 SYNOPSIS 🌸

Dwarf_Die * die_find_realfunc (Dwarf_Die *cu_die , Dwarf_Addr addr ,
Dwarf_Die *die_mem );

---

🦋 ARGUMENTS 🦋

• cu_die — the CU DIE that includes addr. That’s the context bestie, don’t lose it.
• addr — the target address. The exact spot we’re investigating.
• die_mem — a buffer for the result DIE. This is where the found DIE gets parked.

---

✨ DESCRIPTION ✨

So here’s the tea: die_find_realfunc searches for a non-inlined function DIE which includes addr. If it finds one, it stores that DIE to die_mem and returns it. If it fails, you get NULL — and that’s it, no dramatic monologue. 💀

bestie reminder: this is specifically about a non-inlined function DIE, not just any cute little inline situation. Read the assignment. 💅

---

🌈 SEE ALSO 🌈

The kernel file is ./tools/perf/util/dwarf-aux.c, and the whole friend group is right here — collect them all like they’re limited-edition stickers:

• cu_find_realpath(9)
• cu_get_comp_dir(9)
• cu_find_lineinfo(9)
• cu_walk_functions_at(9)
• die_get_linkage_name(9)
• die_compare_name(9)
• die_match_name(9)
• die_get_call_lineno(9)
• die_get_type(9)
• die_get_real_type(9)
• die_get_pointer_type(9)
• die_is_signed_type(9)
• die_is_func_def(9)
• die_entrypc(9)
• die_is_func_instance(9)
• die_get_data_member_location(9)
• die_get_call_file(9)
• die_get_decl_file(9)
• die_find_child(9)
• die_find_tailfunc(9)
• die_find_top_inlinefunc(9)
• die_find_inlinefunc(9)
• die_find_func_rettype(9)
• die_walk_instances(9)
• die_walk_lines(9)
• die_find_variable_at(9)
• die_find_member(9)
• die_get_typename_from_type(9)
• die_get_typename(9)
• die_get_varname(9)
• die_get_var_innermost_scope(9)
• die_get_var_range(9)
• is_breg_access_indirect(9)
• die_find_variable_by_reg(9)
• die_find_variable_by_addr(9)
• die_collect_vars(9)
• die_collect_global_vars(9)
• die_get_cfa(9)
• die_get_scopes(9)
• die_get_member_type(9)
• die_deref_ptr_type(9)

---

bye bestie 💖 — source/version energy is ./tools/perf/util, the date is October 2026, and this has been your die_find_realfunc(9) moment. periodt. 👑