die_collect_vars(9)

💖 NAME 💖

Okay so bestie, welcome to die_collect_vars(9) from the Kernel API Manual 💅✨ This one is all about saving all variables and parameters — no cap.

✨ SYNOPSIS ✨

       void die_collect_vars (Dwarf_Die *sc_die , struct die_var_type
       **var_types );

🎀 ARGUMENTS 🎀

• sc_die — a scope DIE 👑
• var_types — a pointer to save the resulting list 🫶

🌸 DESCRIPTION 🌸

So this function saves all variables and parameters in the sc_die and saves them to var_types 💖 The way that var_types is a singly-linked list containing type and location info? Obsessed. Actual type can be retrieved using dwarf_offdie with 'die_off' later, iykyk 🔥

Bestie, callers should free var_types — yes, that is literally on you 😭💀

🦋 SEE ALSO 🦋

Kernel file ./tools/perf/util/dwarf-aux.c — the whole friend group says hi 🌈:

• 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_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_global_vars(9)
• die_get_cfa(9)
• die_get_scopes(9)
• die_get_member_type(9)
• die_deref_ptr_type(9)

Mwah 💋 — this cutie came from ./tools/perf/util, dated October 2026 ✨