cu_find_realpath(9)

💖 cu_find_realpath(9) — realpath hunting with the Kernel API Manual 💖

okay so this is the cu_find_realpath(9) page from the Kernel API Manual, and it's literally about finding the realpath of the target file. no cap, that's the whole mission. let's get into it bestie 🫶

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🌸 NAME 🌸

cu_find_realpath — find the realpath of the target file. slay, short and iconic ✨

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✨ SYNOPSIS ✨

const char * cu_find_realpath (Dwarf_Die *cu_die , const char *fname );

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🎀 ARGUMENTS 🎀

• cu_die — a DIE(dwarf information entry) of CU(compilation Unit). it's giving "the compilation unit you're looking inside," bestie 💅
• fname — the tail filename of the target file. yes, the tail filename, exactly like the original says 🦋

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💅 DESCRIPTION 💅

Find the real(long) path of fname in cu_die. that's it, that's the vibe — the function goes looking for the real(long) path of the tail filename inside the given CU's DIE. periodt ✨

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🌈 SEE ALSO 🌈

Kernel file: ./tools/perf/util/dwarf-aux.c — and here's the entire SEE ALSO friend group, in the original order, no skips, no cap 👑

• 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_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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okay bye bestie 💖 cu_find_realpath(9) is signing off from source/version ./tools/perf/util, dated October 2026 — periodt 🫶