die_find_func_rettype(9)

💅 die_find_func_rettype — Kernel API Manual 💅

💖 NAME 💖

die_find_func_rettype — search a return type of function ✨

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✨ SYNOPSIS ✨

       Dwarf_Die * die_find_func_rettype (Dwarf_Die *cu_die , const char *name
       , Dwarf_Die *die_mem );

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🎀 ARGUMENTS 🎀

• cu_die — a CU DIE 🫶
• name — target function name 🔎
• die_mem — a buffer for result DIE 🎀

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🦋 DESCRIPTION 🦋

okay so bestie, this one searches for a non-inlined function that matches name 👀. When it finds one, it stores the return type of the function in die_mem and returns it 💖. If it fails, you get NULL — that’s the whole mood 😭.

Important vibe check: it doesn’t need to find a definition of the function, so it doesn’t match with address 🧚. Most likely, it can find a declaration at the top level 🌈. Because of that, the callback function continues to sibling entries only, periodt 💅.

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🌸 SEE ALSO 🌸

Kernel file: ./tools/perf/util/dwarf-aux.c 💜

• 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_realfunc(9)
• die_find_top_inlinefunc(9)
• die_find_inlinefunc(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)

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Source/version vibe: ./tools/perf/util 💖 Date: October 2026 🌸 That’s the page, bestie — go find that return type and slay 🫶👑